From c6a8e163934eb4b334ea52c105e3b637827b9f9f Mon Sep 17 00:00:00 2001 From: Nanako <469449812@qq.com> Date: Tue, 5 Mar 2024 21:48:35 +0800 Subject: [PATCH] =?UTF-8?q?=E7=BA=AFcore,=20=E4=B8=8D=E5=B8=A6=E4=BB=BB?= =?UTF-8?q?=E4=BD=95=E6=B8=B2=E6=9F=93=E5=8A=9F=E8=83=BD?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- CMakeLists.txt | 34 - core/CMakeLists.txt | 8 +- core/application/application.cpp | 99 - core/application/application.h | 28 - core/application/window_manager.cpp | 95 - core/application/window_manager.h | 38 - core/audio/plugin_host/plugin_host.cpp | 7 +- core/audio/plugin_host/plugin_host.h | 7 +- .../plugin_host/vst2/vst2_plugin_host.cpp | 24 +- .../audio/plugin_host/vst2/vst2_plugin_host.h | 4 +- core/filesystem/stb_image.h | 7986 ----------------- core/misc/glfw_misc.cpp | 20 - core/misc/glfw_misc.h | 7 - core/rhi/buffer_vk.cpp | 65 - core/rhi/buffer_vk.h | 53 - core/rhi/compute_pipeline.cpp | 73 - core/rhi/compute_pipeline.h | 15 - core/rhi/pipeline.cpp | 119 - core/rhi/pipeline.h | 47 - core/rhi/render_resource.h | 74 - core/rhi/renderer.cpp | 464 - core/rhi/renderer.h | 88 - core/rhi/texture.cpp | 130 - core/rhi/texture.h | 17 - core/rhi/utils/utils.cpp | 1074 --- core/rhi/utils/utils.hpp | 439 - core/widget/compound_widget.cpp | 8 - core/widget/compound_widget.h | 10 - core/widget/leaf_widget.cpp | 1 - core/widget/leaf_widget.h | 7 - core/widget/panel_widget.cpp | 1 - core/widget/panel_widget.h | 7 - core/widget/uilts.h | 18 - core/widget/widget.cpp | 11 - core/widget/widget.h | 16 - third_party/glfw | 1 - third_party/imgui/CMakeLists.txt | 40 - third_party/imgui/imgui | 1 - third_party/imgui/imgui-knobs/imgui-knobs.cpp | 303 - third_party/imgui/imgui-knobs/imgui-knobs.h | 45 - third_party/imgui/pch.h | 0 41 files changed, 22 insertions(+), 11462 deletions(-) delete mode 100644 core/application/window_manager.cpp delete mode 100644 core/application/window_manager.h delete mode 100644 core/filesystem/stb_image.h delete mode 100644 core/misc/glfw_misc.cpp delete mode 100644 core/misc/glfw_misc.h delete mode 100644 core/rhi/buffer_vk.cpp delete mode 100644 core/rhi/buffer_vk.h delete mode 100644 core/rhi/compute_pipeline.cpp delete mode 100644 core/rhi/compute_pipeline.h delete mode 100644 core/rhi/pipeline.cpp delete mode 100644 core/rhi/pipeline.h delete mode 100644 core/rhi/render_resource.h delete mode 100644 core/rhi/renderer.cpp delete mode 100644 core/rhi/renderer.h delete mode 100644 core/rhi/texture.cpp delete mode 100644 core/rhi/texture.h delete mode 100644 core/rhi/utils/utils.cpp delete mode 100644 core/rhi/utils/utils.hpp delete mode 100644 core/widget/compound_widget.cpp delete mode 100644 core/widget/compound_widget.h delete mode 100644 core/widget/leaf_widget.cpp delete mode 100644 core/widget/leaf_widget.h delete mode 100644 core/widget/panel_widget.cpp delete mode 100644 core/widget/panel_widget.h delete mode 100644 core/widget/uilts.h delete mode 100644 core/widget/widget.cpp delete mode 100644 core/widget/widget.h delete mode 160000 third_party/glfw delete mode 100644 third_party/imgui/CMakeLists.txt delete mode 160000 third_party/imgui/imgui delete mode 100644 third_party/imgui/imgui-knobs/imgui-knobs.cpp delete mode 100644 third_party/imgui/imgui-knobs/imgui-knobs.h delete mode 100644 third_party/imgui/pch.h diff --git a/CMakeLists.txt b/CMakeLists.txt index 5d4c9ea..4d320f6 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -58,38 +58,6 @@ endfunction() set(SHADER_CPP_GENERATED_CMAKE "${CMAKE_CURRENT_SOURCE_DIR}/cmake/GenerateShaderCPPFile.cmake" CACHE STRING "" FORCE) -function(compile_shader TARGET_NAME OUTPUT SHADER_INCLUDE_DIR) - set(working_dir "${CMAKE_CURRENT_SOURCE_DIR}") - set(GLSLANG_BIN $ENV{VULKAN_SDK}/Bin/glslangValidator.exe) # 设置glslangValidator的位置 - set(ALL_SHADER_FILE "") - # get files in SHADER_INCLUDE_DIR - file(GLOB_RECURSE ALL_SHADER_FILE "${SHADER_INCLUDE_DIR}/*.vert" "${SHADER_INCLUDE_DIR}/*.frag" "${SHADER_INCLUDE_DIR}/*.comp" "${SHADER_INCLUDE_DIR}/*.tesc" "${SHADER_INCLUDE_DIR}/*.tese" "${SHADER_INCLUDE_DIR}/*.geom") - - - foreach(SHADER ${ALL_SHADER_FILE}) # 遍历每一个shader源文件 - get_filename_component(SHADER_NAME ${SHADER} NAME) # 获取shader的名字 - string(REPLACE "." "_" HEADER_NAME ${SHADER_NAME}) # 在生成的.h文件中将文件名的'.'换成'_' - string(TOUPPER ${HEADER_NAME} GLOBAL_SHADER_VAR) # 将存储二进制内容的全局vector对象名改为全部大写 - set(SPV_FILE "${OUTPUT}/spv/${SHADER_NAME}.spv") # 生成的.spv文件 - set(CPP_FILE "${OUTPUT}/cpp/${HEADER_NAME}.h") # 生成的.h文件 - add_custom_command( - OUTPUT ${SPV_FILE} - COMMAND ${GLSLANG_BIN} -I${SHADER_INCLUDE_DIR} -V100 -o ${SPV_FILE} ${SHADER} - DEPENDS ${SHADER} - WORKING_DIRECTORY "${working_dir}") # 添加编译命令，在项目生成时执行 - list(APPEND ALL_GENERATED_SPV_FILES ${SPV_FILE}) - add_custom_command( - OUTPUT ${CPP_FILE} - COMMAND ${CMAKE_COMMAND} -DPATH=${SPV_FILE} -DHEADER="${CPP_FILE}" - -DGLOBAL="${GLOBAL_SHADER_VAR}" -P "${SHADER_CPP_GENERATED_CMAKE}" - DEPENDS ${SPV_FILE} - WORKING_DIRECTORY "${working_dir}") # 添加执行将spv转换为h文件的cmake函数的命令 - list(APPEND ALL_GENERATED_CPP_FILES ${CPP_FILE}) - endforeach() - add_custom_target(${TARGET_NAME} # 将上述过程添加到一个生成目标中 - DEPENDS ${ALL_GENERATED_SPV_FILES} ${ALL_GENERATED_CPP_FILES} SOURCES ${SHADERS}) -endfunction() - # setup portaudio set(PA_USE_ASIO ON CACHE BOOL "" FORCE) set(PA_BUILD_SHARED_LIBS ON CACHE BOOL "" FORCE) @@ -123,10 +91,8 @@ set(TF_BUILD_TESTS OFF CACHE BOOL "" FORCE) set(TF_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE) add_subdirectory(core) -add_subdirectory(third_party/imgui) add_subdirectory(third_party/portaudio) add_subdirectory(third_party/spdlog) -add_subdirectory(third_party/glfw) add_subdirectory(third_party/mempool) add_subdirectory(third_party/taskflow) diff --git a/core/CMakeLists.txt b/core/CMakeLists.txt index 438b85e..80b88e0 100644 --- a/core/CMakeLists.txt +++ b/core/CMakeLists.txt @@ -8,13 +8,13 @@ retrieve_files(ALL_FILES) add_library(${PROJECT_NAME} SHARED ${ALL_FILES}) -target_include_directories(${PROJECT_NAME} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR} PortAudio spdlog imgui glfw mempool Taskflow) +target_include_directories(${PROJECT_NAME} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR} PortAudio spdlog mempool Taskflow) -target_link_directories(${PROJECT_NAME} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR} PortAudio spdlog imgui glfw mempool Taskflow) -target_link_libraries(${PROJECT_NAME} PUBLIC PortAudio imgui spdlog glfw mempool Taskflow) +target_link_directories(${PROJECT_NAME} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR} PortAudio spdlog mempool Taskflow) +target_link_libraries(${PROJECT_NAME} PUBLIC PortAudio spdlog mempool Taskflow) target_precompile_headers(${PROJECT_NAME} PUBLIC extern.h) -add_definitions(-Dcore_EXPORTS -DSTB_IMAGE_IMPLEMENTATION -DSTBI_WINDOWS_UTF8) +add_definitions(-Dcore_EXPORTS) if (MSVC) add_custom_command( diff --git a/core/application/application.cpp b/core/application/application.cpp index 1748d63..ccee672 100644 --- a/core/application/application.cpp +++ b/core/application/application.cpp @@ -3,12 +3,6 @@ #include #include "command_line.h" -#include "imgui_impl_sdl3.h" -#include "imgui_internal.h" -#include "window_manager.h" -#include "filesystem/stb_image.h" -#include "rhi/texture.h" -#include "rhi/renderer.h" #include "spdlog/async.h" #include "spdlog/spdlog.h" #include "spdlog/sinks/basic_file_sink.h" @@ -18,10 +12,6 @@ bool g_is_running = true; bool g_exit_requested = false; application* g_app_instance = nullptr; -static void glfw_error_callback(int error, const char* description) { - spdlog::error("Glfw Error {}: {}", error, description); -} - void application::init(const window_params& in_window_params, int argc, char** argv) { try { async_spdlog_ = spdlog::basic_logger_mt("async_file_logger", "logs/log.txt"); @@ -30,103 +20,14 @@ void application::init(const window_params& in_window_params, int argc, char** a } command_line::instance().init(argc, argv); - init_glfw(); - init_imgui(); - renderer_ = new renderer(); - - renderer_->pre_init(); - - const auto window = g_window_manager.create_main_window(in_window_params.title.c_str(), in_window_params.width, in_window_params.height); - // new glfw window - if (!window) { - spdlog::error("Failed to create glfw window"); - return; - } - - renderer_->init(window); g_is_running = true; } -int application::run() { - const ImGuiIO& io = ImGui::GetIO(); - while (!g_exit_requested) { - g_main_thread_hub.process_messages(); - g_window_manager.tick(); - g_exit_requested = g_exit_requested || g_window_manager.should_close(); - tick(io.DeltaTime); - renderer_->new_frame(g_window_manager.get_main_window()); - draw_gui(); - renderer_->end_frame(g_window_manager.get_main_window()); - } - - shutdown(); - return 0; -} - void application::shutdown() { - renderer_->shutdown(); - destroy_imgui(); - - delete renderer_; - renderer_ = nullptr; - - destroy_glfw(); - g_is_running = false; } void application::request_exit() { - g_window_manager.request_exit(); g_exit_requested = true; } - -std::shared_ptr application::load_texture(const std::string& path, vk::Format format) { - int width = 0; - int height = 0; - uint8_t* image_data = stbi_load(path.c_str(), &width, &height, nullptr, 4); - if (!image_data) { - spdlog::error("Failed to load texture: {}", path.c_str()); - return nullptr; - } - const auto texture = renderer::create_texture(image_data, width, height, format); - stbi_image_free(image_data); - return texture; -} - -std::shared_ptr application::create_texture(const unsigned char* data, const int width, const int height, vk::Format format) { - return renderer::create_texture(data, width, height, format); -} - -void application::init_glfw() { - glfwSetErrorCallback(glfw_error_callback); - if (!glfwInit()) { - spdlog::error("Failed to initialize GLFW"); - return; - } - // glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE); -} - -void application::init_imgui() { - // Setup Dear ImGui context - IMGUI_CHECKVERSION(); - init_imgui(ImGui::CreateContext()); - ImGuiIO& io = ImGui::GetIO(); - io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls - io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad; // Enable Gamepad Controls - io.ConfigFlags |= ImGuiConfigFlags_DockingEnable; // Enable Docking - io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable; // Enable Multi-Viewport / Platform Windows - // io.ConfigViewportsNoAutoMerge = true; - // io.ConfigViewportsNoTaskBarIcon = false; - ImGui::StyleColorsDark(); - //ImGui::StyleColorsLight(); -} - -void application::destroy_glfw() { - glfwTerminate(); -} - -void application::destroy_imgui() { - init_imgui(nullptr); - ImGui::DestroyContext(); -} diff --git a/core/application/application.h b/core/application/application.h index f689755..66fcc7c 100644 --- a/core/application/application.h +++ b/core/application/application.h @@ -1,8 +1,5 @@ #pragma once #include -#include "imgui.h" -#include "GLFW/glfw3.h" -#include class renderer; class render_target; @@ -44,37 +41,12 @@ public: virtual void init(const window_params& in_window_params, int argc, char** argv); - virtual int run(); - virtual void shutdown(); void request_exit(); virtual void draw_gui() = 0; virtual void tick(float delta_time) {} - - virtual const char* get_shader_path() = 0; - - virtual void init_imgui(ImGuiContext* in_context) = 0; - - [[nodiscard]] static std::shared_ptr load_texture(const std::string& path, vk::Format format = vk::Format::eR8G8B8A8Unorm); - [[nodiscard]] static std::shared_ptr create_texture(const unsigned char* data, int width, int height, vk::Format format); - - [[nodiscard]] virtual const char* get_entry_model() const = 0; - - [[nodiscard]] virtual const char* get_draw_ps_vertex_shader_entry() const = 0; // Vertex Shader used for drawing ps - - [[nodiscard]] renderer* get_renderer() const { return renderer_; } protected: - renderer* renderer_ = nullptr; std::shared_ptr async_spdlog_; - -private: - static void init_glfw(); - - void init_imgui(); - - void destroy_glfw(); - - void destroy_imgui(); }; diff --git a/core/application/window_manager.cpp b/core/application/window_manager.cpp deleted file mode 100644 index a7f81e2..0000000 --- a/core/application/window_manager.cpp +++ /dev/null @@ -1,95 +0,0 @@ -#include "window_manager.h" - -#include - -#include "audio/plugin_host/plugin_host.h" - -window_manager::window_manager() { - main_window_ = nullptr; -} - -void window_manager::init(singleton_initliazer& initliazer) { - singleton_t::init(initliazer); - // start_idle_thread(); -} - -void window_manager::release(singleton_release_guard& release_guard) { - singleton_t::release(release_guard); - if (main_window_) - glfwDestroyWindow(main_window_); -} - -void window_manager::tick() { - glfwPollEvents(); - if (should_close()) { - destroy_all_plugin_host_window(); - return; - } - update_host_window(); -} - -void window_manager::destroy_all_plugin_host_window() { - for (const auto& window: host_window_map_ | std::views::values) { - glfwDestroyWindow(window); - } - host_window_map_.clear(); -} - -GLFWwindow* window_manager::create_main_window(const char* title, int width, int height) { - if (!main_window_) - main_window_ = glfwCreateWindow(width, height, title, nullptr, nullptr); - return main_window_; -} - -GLFWwindow* window_manager::create_plugin_host_window(plugin_host* host) { - if (!host->has_editor()) - return nullptr; - if (host_window_map_.contains(host)) - return host_window_map_[host]; - auto editor_size = host->get_editor_size(); - auto new_window = glfwCreateWindow(editor_size.x, editor_size.y, host->name.c_str(), nullptr, nullptr); - if (host_window_pos_map_.contains(host)) { - auto pos = host_window_pos_map_[host]; - glfwSetWindowPos(new_window, pos.x, pos.y); - }else { - glfwSetWindowPos(new_window, 100, 100); - } - host_window_map_[host] = new_window; - glfwShowWindow(new_window); - return new_window; -} - -void window_manager::destroy_plugin_host_window(plugin_host* host) { - if (!host_window_map_.contains(host)) - return; - int x, y; - glfwGetWindowPos(host_window_map_[host], &x, &y); - glfwDestroyWindow(host_window_map_[host]); - host_window_map_.erase(host); - host_window_pos_map_[host] = ImVec2(x, y); -} - -void window_manager::resize_plugin_host_window(plugin_host* host, int width, int height) { - if (!host_window_map_.contains(host)) - return; - glfwSetWindowSize(host_window_map_[host], width, height); -} - -void window_manager::idle_plugin_host_window() const { - for (const auto& window_map: host_window_map_) { - window_map.first->idle_editor(); - } -} - -void window_manager::update_host_window() { - std::vector host_editor_to_close; - for (const auto& [host, window]: host_window_map_) { - if (glfwWindowShouldClose(window)) { - host_editor_to_close.push_back(host); - } - } - for (auto host: host_editor_to_close) { - host->try_close_editor(); - } - idle_plugin_host_window(); -} diff --git a/core/application/window_manager.h b/core/application/window_manager.h deleted file mode 100644 index 8ec552c..0000000 --- a/core/application/window_manager.h +++ /dev/null @@ -1,38 +0,0 @@ -#pragma once -#include "GLFW/glfw3.h" -#include "misc/singleton/singleton.h" -#include - -#include "imgui.h" - -class plugin_host; - -class window_manager : public singleton_t { -public: - window_manager(); - void init(singleton_initliazer& initliazer) override; - void release(singleton_release_guard& release_guard) override; - void tick(); - bool should_close() const { return glfwWindowShouldClose(main_window_); } - void destroy_all_plugin_host_window(); - - GLFWwindow* create_main_window(const char* title, int width, int height); - void request_exit() const { glfwSetWindowShouldClose(main_window_, GLFW_TRUE); } - GLFWwindow* get_main_window() const { return main_window_; } - - GLFWwindow* create_plugin_host_window(plugin_host* host); - void destroy_plugin_host_window(plugin_host* host); - void resize_plugin_host_window(plugin_host* host, int width, int height); - void idle_plugin_host_window() const; - - const char* get_name() override { return "window_manager"; } -private: - - void update_host_window(); - - GLFWwindow* main_window_; - std::map host_window_map_; - std::map host_window_pos_map_; -}; - -DEFINE_SINGLETON_INSTANCE(window_manager) diff --git a/core/audio/plugin_host/plugin_host.cpp b/core/audio/plugin_host/plugin_host.cpp index ba2010b..9c1194a 100644 --- a/core/audio/plugin_host/plugin_host.cpp +++ b/core/audio/plugin_host/plugin_host.cpp @@ -1,6 +1,5 @@ #include "plugin_host.h" -#include "application/window_manager.h" #include "audio/mixer/channel_interface.h" plugin_host::~plugin_host() { @@ -12,8 +11,8 @@ void plugin_host::try_open_editor() { return; if (editor_opened) return; - editor_window = g_window_manager.create_plugin_host_window(this); - open_editor(editor_window); + // editor_window = g_window_manager.create_plugin_host_window(this); + // open_editor(editor_window); editor_opened = true; } @@ -24,7 +23,7 @@ void plugin_host::try_close_editor() { return; close_editor(); editor_opened = false; - g_window_manager.destroy_plugin_host_window(this); + // g_window_manager.destroy_plugin_host_window(this); } void plugin_host::toggle_editor() { diff --git a/core/audio/plugin_host/plugin_host.h b/core/audio/plugin_host/plugin_host.h index a954d8e..582a90d 100644 --- a/core/audio/plugin_host/plugin_host.h +++ b/core/audio/plugin_host/plugin_host.h @@ -1,6 +1,4 @@ #pragma once -#include "imgui.h" -#include "GLFW/glfw3.h" class mixer_track; class channel_interface; @@ -28,7 +26,7 @@ public: virtual void idle_editor() {} [[nodiscard]] virtual bool has_editor() const { return false; } - [[nodiscard]] virtual ImVec2 get_editor_size() const { return ImVec2(0, 0); } + // [[nodiscard]] virtual ImVec2 get_editor_size() const { return ImVec2(0, 0); } [[nodiscard]] virtual std::string load_name() const { return ""; } [[nodiscard]] virtual std::string load_vendor() const { return ""; } @@ -39,9 +37,8 @@ public: std::string vendor; channel_interface* channel = nullptr; std::vector owner_tracks; - GLFWwindow* editor_window = nullptr; bool editor_opened = false; protected: - virtual void open_editor(GLFWwindow* window) = 0; + virtual void open_editor() = 0; virtual void close_editor() = 0; }; diff --git a/core/audio/plugin_host/vst2/vst2_plugin_host.cpp b/core/audio/plugin_host/vst2/vst2_plugin_host.cpp index 8fc56d3..c1315c1 100644 --- a/core/audio/plugin_host/vst2/vst2_plugin_host.cpp +++ b/core/audio/plugin_host/vst2/vst2_plugin_host.cpp @@ -1,9 +1,7 @@ #include "vst2_plugin_host.h" -#include "application/window_manager.h" #include "audio/device/audio_device_manager.h" #include "audio/mixer/channel_interface.h" -#include "misc/glfw_misc.h" std::map> vst2_library_map; VstTimeInfo vst2_plugin_host::vst_time_info{}; @@ -65,7 +63,7 @@ VstIntPtr vst_master_callback(AEffect* effect, VstInt32 opcode, VstInt32 index, case audioMasterSizeWindow: { // 设置插件窗口大小 - g_window_manager.resize_plugin_host_window((plugin_host*)effect->user, index, value); + // g_window_manager.resize_plugin_host_window((plugin_host*)effect->user, index, value); return 1; } case audioMasterGetTime: @@ -226,13 +224,13 @@ bool vst2_plugin_host::has_editor() const { return effect_->flags & effFlagsHasEditor; } -ImVec2 vst2_plugin_host::get_editor_size() const { - ERect* EditorRect = nullptr; - dispatch(effEditGetRect, 0, 0, &EditorRect); - if (EditorRect) - return ImVec2(EditorRect->right - EditorRect->left, EditorRect->bottom - EditorRect->top); - return ImVec2(0, 0); -} +// ImVec2 vst2_plugin_host::get_editor_size() const { +// ERect* EditorRect = nullptr; +// dispatch(effEditGetRect, 0, 0, &EditorRect); +// if (EditorRect) +// return ImVec2(EditorRect->right - EditorRect->left, EditorRect->bottom - EditorRect->top); +// return ImVec2(0, 0); +// } std::string vst2_plugin_host::load_name() const { char buffer[256]; @@ -246,12 +244,12 @@ std::string vst2_plugin_host::load_vendor() const { return buffer; } -void vst2_plugin_host::open_editor(GLFWwindow* window) { +void vst2_plugin_host::open_editor() { if (!has_editor()) return; - void* window_handle = glfwGetWindowHandle(window); + // void* window_handle = glfwGetWindowHandle(window); - dispatch(effEditOpen, 0, 0, window_handle); + // dispatch(effEditOpen, 0, 0, window_handle); } void vst2_plugin_host::close_editor() { diff --git a/core/audio/plugin_host/vst2/vst2_plugin_host.h b/core/audio/plugin_host/vst2/vst2_plugin_host.h index 4eb90df..7434173 100644 --- a/core/audio/plugin_host/vst2/vst2_plugin_host.h +++ b/core/audio/plugin_host/vst2/vst2_plugin_host.h @@ -24,12 +24,12 @@ public: void idle_editor() override; [[nodiscard]] bool has_editor() const override; - [[nodiscard]] ImVec2 get_editor_size() const override; + // [[nodiscard]] ImVec2 get_editor_size() const override; [[nodiscard]] std::string load_name() const override; [[nodiscard]] std::string load_vendor() const override; protected: - void open_editor(GLFWwindow* window) override; + void open_editor() override; void close_editor() override; private: VstIntPtr dispatch(VstInt32 opcode, VstInt32 index = 0, VstIntPtr value = 0, void* ptr = nullptr, float opt = 0) const; diff --git a/core/filesystem/stb_image.h b/core/filesystem/stb_image.h deleted file mode 100644 index 7c74569..0000000 --- a/core/filesystem/stb_image.h +++ /dev/null @@ -1,7986 +0,0 @@ -/* stb_image - v2.29 - public domain image loader - http://nothings.org/stb - no warranty implied; use at your own risk - - Do this: - #define STB_IMAGE_IMPLEMENTATION - before you include this file in *one* C or C++ file to create the implementation. - - // i.e. it should look like this: - #include ... - #include ... - #include ... - #define STB_IMAGE_IMPLEMENTATION - #include "stb_image.h" - - You can #define STBI_ASSERT(x) before the #include to avoid using assert.h. - And #define STBI_MALLOC, STBI_REALLOC, and STBI_FREE to avoid using malloc,realloc,free - - - QUICK NOTES: - Primarily of interest to game developers and other people who can - avoid problematic images and only need the trivial interface - - JPEG baseline & progressive (12 bpc/arithmetic not supported, same as stock IJG lib) - PNG 1/2/4/8/16-bit-per-channel - - TGA (not sure what subset, if a subset) - BMP non-1bpp, non-RLE - PSD (composited view only, no extra channels, 8/16 bit-per-channel) - - GIF (*comp always reports as 4-channel) - HDR (radiance rgbE format) - PIC (Softimage PIC) - PNM (PPM and PGM binary only) - - Animated GIF still needs a proper API, but here's one way to do it: - http://gist.github.com/urraka/685d9a6340b26b830d49 - - - decode from memory or through FILE (define STBI_NO_STDIO to remove code) - - decode from arbitrary I/O callbacks - - SIMD acceleration on x86/x64 (SSE2) and ARM (NEON) - - Full documentation under "DOCUMENTATION" below. - - -LICENSE - - See end of file for license information. - -RECENT REVISION HISTORY: - - 2.29 (2023-05-xx) optimizations - 2.28 (2023-01-29) many error fixes, security errors, just tons of stuff - 2.27 (2021-07-11) document stbi_info better, 16-bit PNM support, bug fixes - 2.26 (2020-07-13) many minor fixes - 2.25 (2020-02-02) fix warnings - 2.24 (2020-02-02) fix warnings; thread-local failure_reason and flip_vertically - 2.23 (2019-08-11) fix clang static analysis warning - 2.22 (2019-03-04) gif fixes, fix warnings - 2.21 (2019-02-25) fix typo in comment - 2.20 (2019-02-07) support utf8 filenames in Windows; fix warnings and platform ifdefs - 2.19 (2018-02-11) fix warning - 2.18 (2018-01-30) fix warnings - 2.17 (2018-01-29) bugfix, 1-bit BMP, 16-bitness query, fix warnings - 2.16 (2017-07-23) all functions have 16-bit variants; optimizations; bugfixes - 2.15 (2017-03-18) fix png-1,2,4; all Imagenet JPGs; no runtime SSE detection on GCC - 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs - 2.13 (2016-12-04) experimental 16-bit API, only for PNG so far; fixes - 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes - 2.11 (2016-04-02) 16-bit PNGS; enable SSE2 in non-gcc x64 - RGB-format JPEG; remove white matting in PSD; - allocate large structures on the stack; - correct channel count for PNG & BMP - 2.10 (2016-01-22) avoid warning introduced in 2.09 - 2.09 (2016-01-16) 16-bit TGA; comments in PNM files; STBI_REALLOC_SIZED - - See end of file for full revision history. - - - ============================ Contributors ========================= - - Image formats Extensions, features - Sean Barrett (jpeg, png, bmp) Jetro Lauha (stbi_info) - Nicolas Schulz (hdr, psd) Martin "SpartanJ" Golini (stbi_info) - Jonathan Dummer (tga) James "moose2000" Brown (iPhone PNG) - Jean-Marc Lienher (gif) Ben "Disch" Wenger (io callbacks) - Tom Seddon (pic) Omar Cornut (1/2/4-bit PNG) - Thatcher Ulrich (psd) Nicolas Guillemot (vertical flip) - Ken Miller (pgm, ppm) Richard Mitton (16-bit PSD) - github:urraka (animated gif) Junggon Kim (PNM comments) - Christopher Forseth (animated gif) Daniel Gibson (16-bit TGA) - socks-the-fox (16-bit PNG) - Jeremy Sawicki (handle all ImageNet JPGs) - Optimizations & bugfixes Mikhail Morozov (1-bit BMP) - Fabian "ryg" Giesen Anael Seghezzi (is-16-bit query) - Arseny Kapoulkine Simon Breuss (16-bit PNM) - John-Mark Allen - Carmelo J Fdez-Aguera - - Bug & warning fixes - Marc LeBlanc David Woo Guillaume George Martins Mozeiko - Christpher Lloyd Jerry Jansson Joseph Thomson Blazej Dariusz Roszkowski - Phil Jordan Dave Moore Roy Eltham - Hayaki Saito Nathan Reed Won Chun - Luke Graham Johan Duparc Nick Verigakis the Horde3D community - Thomas Ruf Ronny Chevalier github:rlyeh - Janez Zemva John Bartholomew Michal Cichon github:romigrou - Jonathan Blow Ken Hamada Tero Hanninen github:svdijk - Eugene Golushkov Laurent Gomila Cort Stratton github:snagar - Aruelien Pocheville Sergio Gonzalez Thibault Reuille github:Zelex - Cass Everitt Ryamond Barbiero github:grim210 - Paul Du Bois Engin Manap Aldo Culquicondor github:sammyhw - Philipp Wiesemann Dale Weiler Oriol Ferrer Mesia github:phprus - Josh Tobin Neil Bickford Matthew Gregan github:poppolopoppo - Julian Raschke Gregory Mullen Christian Floisand github:darealshinji - Baldur Karlsson Kevin Schmidt JR Smith github:Michaelangel007 - Brad Weinberger Matvey Cherevko github:mosra - Luca Sas Alexander Veselov Zack Middleton [reserved] - Ryan C. Gordon [reserved] [reserved] - DO NOT ADD YOUR NAME HERE - - Jacko Dirks - - To add your name to the credits, pick a random blank space in the middle and fill it. - 80% of merge conflicts on stb PRs are due to people adding their name at the end - of the credits. -*/ -#pragma once - -#ifndef STBI_INCLUDE_STB_IMAGE_H -#define STBI_INCLUDE_STB_IMAGE_H - -// DOCUMENTATION -// -// Limitations: -// - no 12-bit-per-channel JPEG -// - no JPEGs with arithmetic coding -// - GIF always returns *comp=4 -// -// Basic usage (see HDR discussion below for HDR usage): -// int x,y,n; -// unsigned char *data = stbi_load(filename, &x, &y, &n, 0); -// // ... process data if not NULL ... -// // ... x = width, y = height, n = # 8-bit components per pixel ... -// // ... replace '0' with '1'..'4' to force that many components per pixel -// // ... but 'n' will always be the number that it would have been if you said 0 -// stbi_image_free(data); -// -// Standard parameters: -// int *x -- outputs image width in pixels -// int *y -- outputs image height in pixels -// int *channels_in_file -- outputs # of image components in image file -// int desired_channels -- if non-zero, # of image components requested in result -// -// The return value from an image loader is an 'unsigned char *' which points -// to the pixel data, or NULL on an allocation failure or if the image is -// corrupt or invalid. The pixel data consists of *y scanlines of *x pixels, -// with each pixel consisting of N interleaved 8-bit components; the first -// pixel pointed to is top-left-most in the image. There is no padding between -// image scanlines or between pixels, regardless of format. The number of -// components N is 'desired_channels' if desired_channels is non-zero, or -// *channels_in_file otherwise. If desired_channels is non-zero, -// *channels_in_file has the number of components that _would_ have been -// output otherwise. E.g. if you set desired_channels to 4, you will always -// get RGBA output, but you can check *channels_in_file to see if it's trivially -// opaque because e.g. there were only 3 channels in the source image. -// -// An output image with N components has the following components interleaved -// in this order in each pixel: -// -// N=#comp components -// 1 grey -// 2 grey, alpha -// 3 red, green, blue -// 4 red, green, blue, alpha -// -// If image loading fails for any reason, the return value will be NULL, -// and *x, *y, *channels_in_file will be unchanged. The function -// stbi_failure_reason() can be queried for an extremely brief, end-user -// unfriendly explanation of why the load failed. Define STBI_NO_FAILURE_STRINGS -// to avoid compiling these strings at all, and STBI_FAILURE_USERMSG to get slightly -// more user-friendly ones. -// -// Paletted PNG, BMP, GIF, and PIC images are automatically depalettized. -// -// To query the width, height and component count of an image without having to -// decode the full file, you can use the stbi_info family of functions: -// -// int x,y,n,ok; -// ok = stbi_info(filename, &x, &y, &n); -// // returns ok=1 and sets x, y, n if image is a supported format, -// // 0 otherwise. -// -// Note that stb_image pervasively uses ints in its public API for sizes, -// including sizes of memory buffers. This is now part of the API and thus -// hard to change without causing breakage. As a result, the various image -// loaders all have certain limits on image size; these differ somewhat -// by format but generally boil down to either just under 2GB or just under -// 1GB. When the decoded image would be larger than this, stb_image decoding -// will fail. -// -// Additionally, stb_image will reject image files that have any of their -// dimensions set to a larger value than the configurable STBI_MAX_DIMENSIONS, -// which defaults to 2**24 = 16777216 pixels. Due to the above memory limit, -// the only way to have an image with such dimensions load correctly -// is for it to have a rather extreme aspect ratio. Either way, the -// assumption here is that such larger images are likely to be malformed -// or malicious. If you do need to load an image with individual dimensions -// larger than that, and it still fits in the overall size limit, you can -// #define STBI_MAX_DIMENSIONS on your own to be something larger. -// -// =========================================================================== -// -// UNICODE: -// -// If compiling for Windows and you wish to use Unicode filenames, compile -// with -// #define STBI_WINDOWS_UTF8 -// and pass utf8-encoded filenames. Call stbi_convert_wchar_to_utf8 to convert -// Windows wchar_t filenames to utf8. -// -// =========================================================================== -// -// Philosophy -// -// stb libraries are designed with the following priorities: -// -// 1. easy to use -// 2. easy to maintain -// 3. good performance -// -// Sometimes I let "good performance" creep up in priority over "easy to maintain", -// and for best performance I may provide less-easy-to-use APIs that give higher -// performance, in addition to the easy-to-use ones. Nevertheless, it's important -// to keep in mind that from the standpoint of you, a client of this library, -// all you care about is #1 and #3, and stb libraries DO NOT emphasize #3 above all. -// -// Some secondary priorities arise directly from the first two, some of which -// provide more explicit reasons why performance can't be emphasized. -// -// - Portable ("ease of use") -// - Small source code footprint ("easy to maintain") -// - No dependencies ("ease of use") -// -// =========================================================================== -// -// I/O callbacks -// -// I/O callbacks allow you to read from arbitrary sources, like packaged -// files or some other source. Data read from callbacks are processed -// through a small internal buffer (currently 128 bytes) to try to reduce -// overhead. -// -// The three functions you must define are "read" (reads some bytes of data), -// "skip" (skips some bytes of data), "eof" (reports if the stream is at the end). -// -// =========================================================================== -// -// SIMD support -// -// The JPEG decoder will try to automatically use SIMD kernels on x86 when -// supported by the compiler. For ARM Neon support, you must explicitly -// request it. -// -// (The old do-it-yourself SIMD API is no longer supported in the current -// code.) -// -// On x86, SSE2 will automatically be used when available based on a run-time -// test; if not, the generic C versions are used as a fall-back. On ARM targets, -// the typical path is to have separate builds for NEON and non-NEON devices -// (at least this is true for iOS and Android). Therefore, the NEON support is -// toggled by a build flag: define STBI_NEON to get NEON loops. -// -// If for some reason you do not want to use any of SIMD code, or if -// you have issues compiling it, you can disable it entirely by -// defining STBI_NO_SIMD. -// -// =========================================================================== -// -// HDR image support (disable by defining STBI_NO_HDR) -// -// stb_image supports loading HDR images in general, and currently the Radiance -// .HDR file format specifically. You can still load any file through the existing -// interface; if you attempt to load an HDR file, it will be automatically remapped -// to LDR, assuming gamma 2.2 and an arbitrary scale factor defaulting to 1; -// both of these constants can be reconfigured through this interface: -// -// stbi_hdr_to_ldr_gamma(2.2f); -// stbi_hdr_to_ldr_scale(1.0f); -// -// (note, do not use _inverse_ constants; stbi_image will invert them -// appropriately). -// -// Additionally, there is a new, parallel interface for loading files as -// (linear) floats to preserve the full dynamic range: -// -// float *data = stbi_loadf(filename, &x, &y, &n, 0); -// -// If you load LDR images through this interface, those images will -// be promoted to floating point values, run through the inverse of -// constants corresponding to the above: -// -// stbi_ldr_to_hdr_scale(1.0f); -// stbi_ldr_to_hdr_gamma(2.2f); -// -// Finally, given a filename (or an open file or memory block--see header -// file for details) containing image data, you can query for the "most -// appropriate" interface to use (that is, whether the image is HDR or -// not), using: -// -// stbi_is_hdr(char *filename); -// -// =========================================================================== -// -// iPhone PNG support: -// -// We optionally support converting iPhone-formatted PNGs (which store -// premultiplied BGRA) back to RGB, even though they're internally encoded -// differently. To enable this conversion, call -// stbi_convert_iphone_png_to_rgb(1). -// -// Call stbi_set_unpremultiply_on_load(1) as well to force a divide per -// pixel to remove any premultiplied alpha *only* if the image file explicitly -// says there's premultiplied data (currently only happens in iPhone images, -// and only if iPhone convert-to-rgb processing is on). -// -// =========================================================================== -// -// ADDITIONAL CONFIGURATION -// -// - You can suppress implementation of any of the decoders to reduce -// your code footprint by #defining one or more of the following -// symbols before creating the implementation. -// -// STBI_NO_JPEG -// STBI_NO_PNG -// STBI_NO_BMP -// STBI_NO_PSD -// STBI_NO_TGA -// STBI_NO_GIF -// STBI_NO_HDR -// STBI_NO_PIC -// STBI_NO_PNM (.ppm and .pgm) -// -// - You can request *only* certain decoders and suppress all other ones -// (this will be more forward-compatible, as addition of new decoders -// doesn't require you to disable them explicitly): -// -// STBI_ONLY_JPEG -// STBI_ONLY_PNG -// STBI_ONLY_BMP -// STBI_ONLY_PSD -// STBI_ONLY_TGA -// STBI_ONLY_GIF -// STBI_ONLY_HDR -// STBI_ONLY_PIC -// STBI_ONLY_PNM (.ppm and .pgm) -// -// - If you use STBI_NO_PNG (or _ONLY_ without PNG), and you still -// want the zlib decoder to be available, #define STBI_SUPPORT_ZLIB -// -// - If you define STBI_MAX_DIMENSIONS, stb_image will reject images greater -// than that size (in either width or height) without further processing. -// This is to let programs in the wild set an upper bound to prevent -// denial-of-service attacks on untrusted data, as one could generate a -// valid image of gigantic dimensions and force stb_image to allocate a -// huge block of memory and spend disproportionate time decoding it. By -// default this is set to (1 << 24), which is 16777216, but that's still -// very big. - -#ifndef STBI_NO_STDIO -#include -#endif // STBI_NO_STDIO - -#define STBI_VERSION 1 - -enum -{ - STBI_default = 0, // only used for desired_channels - - STBI_grey = 1, - STBI_grey_alpha = 2, - STBI_rgb = 3, - STBI_rgb_alpha = 4 -}; - -#include -typedef unsigned char stbi_uc; -typedef unsigned short stbi_us; - -#ifdef __cplusplus -extern "C" { -#endif - -#ifndef STBIDEF -#ifdef STB_IMAGE_STATIC -#define STBIDEF static -#else -#define STBIDEF extern -#endif -#endif - -////////////////////////////////////////////////////////////////////////////// -// -// PRIMARY API - works on images of any type -// - -// -// load image by filename, open file, or memory buffer -// - -typedef struct -{ - int (*read) (void *user,char *data,int size); // fill 'data' with 'size' bytes. return number of bytes actually read - void (*skip) (void *user,int n); // skip the next 'n' bytes, or 'unget' the last -n bytes if negative - int (*eof) (void *user); // returns nonzero if we are at end of file/data -} stbi_io_callbacks; - -//////////////////////////////////// -// -// 8-bits-per-channel interface -// - -STBIDEF stbi_uc *stbi_load_from_memory (stbi_uc const *buffer, int len , int *x, int *y, int *channels_in_file, int desired_channels); -STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk , void *user, int *x, int *y, int *channels_in_file, int desired_channels); - -#ifndef STBI_NO_STDIO -STBIDEF stbi_uc *stbi_load (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); -STBIDEF stbi_uc *stbi_load_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); -// for stbi_load_from_file, file pointer is left pointing immediately after image -#endif - -#ifndef STBI_NO_GIF -STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp); -#endif - -#ifdef STBI_WINDOWS_UTF8 -STBIDEF int stbi_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input); -#endif - -//////////////////////////////////// -// -// 16-bits-per-channel interface -// - -STBIDEF stbi_us *stbi_load_16_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels); -STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels); - -#ifndef STBI_NO_STDIO -STBIDEF stbi_us *stbi_load_16 (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); -STBIDEF stbi_us *stbi_load_from_file_16(FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); -#endif - -//////////////////////////////////// -// -// float-per-channel interface -// -#ifndef STBI_NO_LINEAR - STBIDEF float *stbi_loadf_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels); - STBIDEF float *stbi_loadf_from_callbacks (stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels); - - #ifndef STBI_NO_STDIO - STBIDEF float *stbi_loadf (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); - STBIDEF float *stbi_loadf_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); - #endif -#endif - -#ifndef STBI_NO_HDR - STBIDEF void stbi_hdr_to_ldr_gamma(float gamma); - STBIDEF void stbi_hdr_to_ldr_scale(float scale); -#endif // STBI_NO_HDR - -#ifndef STBI_NO_LINEAR - STBIDEF void stbi_ldr_to_hdr_gamma(float gamma); - STBIDEF void stbi_ldr_to_hdr_scale(float scale); -#endif // STBI_NO_LINEAR - -// stbi_is_hdr is always defined, but always returns false if STBI_NO_HDR -STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user); -STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len); -#ifndef STBI_NO_STDIO -STBIDEF int stbi_is_hdr (char const *filename); -STBIDEF int stbi_is_hdr_from_file(FILE *f); -#endif // STBI_NO_STDIO - - -// get a VERY brief reason for failure -// on most compilers (and ALL modern mainstream compilers) this is threadsafe -STBIDEF const char *stbi_failure_reason (void); - -// free the loaded image -- this is just free() -STBIDEF void stbi_image_free (void *retval_from_stbi_load); - -// get image dimensions & components without fully decoding -STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp); -STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp); -STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len); -STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *clbk, void *user); - -#ifndef STBI_NO_STDIO -STBIDEF int stbi_info (char const *filename, int *x, int *y, int *comp); -STBIDEF int stbi_info_from_file (FILE *f, int *x, int *y, int *comp); -STBIDEF int stbi_is_16_bit (char const *filename); -STBIDEF int stbi_is_16_bit_from_file(FILE *f); -#endif - - - -// for image formats that explicitly notate that they have premultiplied alpha, -// we just return the colors as stored in the file. set this flag to force -// unpremultiplication. results are undefined if the unpremultiply overflow. -STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply); - -// indicate whether we should process iphone images back to canonical format, -// or just pass them through "as-is" -STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert); - -// flip the image vertically, so the first pixel in the output array is the bottom left -STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip); - -// as above, but only applies to images loaded on the thread that calls the function -// this function is only available if your compiler supports thread-local variables; -// calling it will fail to link if your compiler doesn't -STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply); -STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert); -STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip); - -// ZLIB client - used by PNG, available for other purposes - -STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen); -STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header); -STBIDEF char *stbi_zlib_decode_malloc(const char *buffer, int len, int *outlen); -STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, const char *ibuffer, int ilen); - -STBIDEF char *stbi_zlib_decode_noheader_malloc(const char *buffer, int len, int *outlen); -STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen); - - -#ifdef __cplusplus -} -#endif - -// -// -//// end header file ///////////////////////////////////////////////////// -#endif // STBI_INCLUDE_STB_IMAGE_H - -#ifdef STB_IMAGE_IMPLEMENTATION - -#if defined(STBI_ONLY_JPEG) || defined(STBI_ONLY_PNG) || defined(STBI_ONLY_BMP) \ - || defined(STBI_ONLY_TGA) || defined(STBI_ONLY_GIF) || defined(STBI_ONLY_PSD) \ - || defined(STBI_ONLY_HDR) || defined(STBI_ONLY_PIC) || defined(STBI_ONLY_PNM) \ - || defined(STBI_ONLY_ZLIB) - #ifndef STBI_ONLY_JPEG - #define STBI_NO_JPEG - #endif - #ifndef STBI_ONLY_PNG - #define STBI_NO_PNG - #endif - #ifndef STBI_ONLY_BMP - #define STBI_NO_BMP - #endif - #ifndef STBI_ONLY_PSD - #define STBI_NO_PSD - #endif - #ifndef STBI_ONLY_TGA - #define STBI_NO_TGA - #endif - #ifndef STBI_ONLY_GIF - #define STBI_NO_GIF - #endif - #ifndef STBI_ONLY_HDR - #define STBI_NO_HDR - #endif - #ifndef STBI_ONLY_PIC - #define STBI_NO_PIC - #endif - #ifndef STBI_ONLY_PNM - #define STBI_NO_PNM - #endif -#endif - -#if defined(STBI_NO_PNG) && !defined(STBI_SUPPORT_ZLIB) && !defined(STBI_NO_ZLIB) -#define STBI_NO_ZLIB -#endif - - -#include -#include // ptrdiff_t on osx -#include -#include -#include - -#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) -#include // ldexp, pow -#endif - -#ifndef STBI_NO_STDIO -#include -#endif - -#ifndef STBI_ASSERT -#include -#define STBI_ASSERT(x) assert(x) -#endif - -#ifdef __cplusplus -#define STBI_EXTERN extern "C" -#else -#define STBI_EXTERN extern -#endif - - -#ifndef _MSC_VER - #ifdef __cplusplus - #define stbi_inline inline - #else - #define stbi_inline - #endif -#else - #define stbi_inline __forceinline -#endif - -#ifndef STBI_NO_THREAD_LOCALS - #if defined(__cplusplus) && __cplusplus >= 201103L - #define STBI_THREAD_LOCAL thread_local - #elif defined(__GNUC__) && __GNUC__ < 5 - #define STBI_THREAD_LOCAL __thread - #elif defined(_MSC_VER) - #define STBI_THREAD_LOCAL __declspec(thread) - #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && !defined(__STDC_NO_THREADS__) - #define STBI_THREAD_LOCAL _Thread_local - #endif - - #ifndef STBI_THREAD_LOCAL - #if defined(__GNUC__) - #define STBI_THREAD_LOCAL __thread - #endif - #endif -#endif - -#if defined(_MSC_VER) || defined(__SYMBIAN32__) -typedef unsigned short stbi__uint16; -typedef signed short stbi__int16; -typedef unsigned int stbi__uint32; -typedef signed int stbi__int32; -#else -#include -typedef uint16_t stbi__uint16; -typedef int16_t stbi__int16; -typedef uint32_t stbi__uint32; -typedef int32_t stbi__int32; -#endif - -// should produce compiler error if size is wrong -typedef unsigned char validate_uint32[sizeof(stbi__uint32)==4 ? 1 : -1]; - -#ifdef _MSC_VER -#define STBI_NOTUSED(v) (void)(v) -#else -#define STBI_NOTUSED(v) (void)sizeof(v) -#endif - -#ifdef _MSC_VER -#define STBI_HAS_LROTL -#endif - -#ifdef STBI_HAS_LROTL - #define stbi_lrot(x,y) _lrotl(x,y) -#else - #define stbi_lrot(x,y) (((x) << (y)) | ((x) >> (-(y) & 31))) -#endif - -#if defined(STBI_MALLOC) && defined(STBI_FREE) && (defined(STBI_REALLOC) || defined(STBI_REALLOC_SIZED)) -// ok -#elif !defined(STBI_MALLOC) && !defined(STBI_FREE) && !defined(STBI_REALLOC) && !defined(STBI_REALLOC_SIZED) -// ok -#else -#error "Must define all or none of STBI_MALLOC, STBI_FREE, and STBI_REALLOC (or STBI_REALLOC_SIZED)." -#endif - -#ifndef STBI_MALLOC -#define STBI_MALLOC(sz) malloc(sz) -#define STBI_REALLOC(p,newsz) realloc(p,newsz) -#define STBI_FREE(p) free(p) -#endif - -#ifndef STBI_REALLOC_SIZED -#define STBI_REALLOC_SIZED(p,oldsz,newsz) STBI_REALLOC(p,newsz) -#endif - -// x86/x64 detection -#if defined(__x86_64__) || defined(_M_X64) -#define STBI__X64_TARGET -#elif defined(__i386) || defined(_M_IX86) -#define STBI__X86_TARGET -#endif - -#if defined(__GNUC__) && defined(STBI__X86_TARGET) && !defined(__SSE2__) && !defined(STBI_NO_SIMD) -// gcc doesn't support sse2 intrinsics unless you compile with -msse2, -// which in turn means it gets to use SSE2 everywhere. This is unfortunate, -// but previous attempts to provide the SSE2 functions with runtime -// detection caused numerous issues. The way architecture extensions are -// exposed in GCC/Clang is, sadly, not really suited for one-file libs. -// New behavior: if compiled with -msse2, we use SSE2 without any -// detection; if not, we don't use it at all. -#define STBI_NO_SIMD -#endif - -#if defined(__MINGW32__) && defined(STBI__X86_TARGET) && !defined(STBI_MINGW_ENABLE_SSE2) && !defined(STBI_NO_SIMD) -// Note that __MINGW32__ doesn't actually mean 32-bit, so we have to avoid STBI__X64_TARGET -// -// 32-bit MinGW wants ESP to be 16-byte aligned, but this is not in the -// Windows ABI and VC++ as well as Windows DLLs don't maintain that invariant. -// As a result, enabling SSE2 on 32-bit MinGW is dangerous when not -// simultaneously enabling "-mstackrealign". -// -// See https://github.com/nothings/stb/issues/81 for more information. -// -// So default to no SSE2 on 32-bit MinGW. If you've read this far and added -// -mstackrealign to your build settings, feel free to #define STBI_MINGW_ENABLE_SSE2. -#define STBI_NO_SIMD -#endif - -#if !defined(STBI_NO_SIMD) && (defined(STBI__X86_TARGET) || defined(STBI__X64_TARGET)) -#define STBI_SSE2 -#include - -#ifdef _MSC_VER - -#if _MSC_VER >= 1400 // not VC6 -#include // __cpuid -static int stbi__cpuid3(void) -{ - int info[4]; - __cpuid(info,1); - return info[3]; -} -#else -static int stbi__cpuid3(void) -{ - int res; - __asm { - mov eax,1 - cpuid - mov res,edx - } - return res; -} -#endif - -#define STBI_SIMD_ALIGN(type, name) __declspec(align(16)) type name - -#if !defined(STBI_NO_JPEG) && defined(STBI_SSE2) -static int stbi__sse2_available(void) -{ - int info3 = stbi__cpuid3(); - return ((info3 >> 26) & 1) != 0; -} -#endif - -#else // assume GCC-style if not VC++ -#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16))) - -#if !defined(STBI_NO_JPEG) && defined(STBI_SSE2) -static int stbi__sse2_available(void) -{ - // If we're even attempting to compile this on GCC/Clang, that means - // -msse2 is on, which means the compiler is allowed to use SSE2 - // instructions at will, and so are we. - return 1; -} -#endif - -#endif -#endif - -// ARM NEON -#if defined(STBI_NO_SIMD) && defined(STBI_NEON) -#undef STBI_NEON -#endif - -#ifdef STBI_NEON -#include -#ifdef _MSC_VER -#define STBI_SIMD_ALIGN(type, name) __declspec(align(16)) type name -#else -#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16))) -#endif -#endif - -#ifndef STBI_SIMD_ALIGN -#define STBI_SIMD_ALIGN(type, name) type name -#endif - -#ifndef STBI_MAX_DIMENSIONS -#define STBI_MAX_DIMENSIONS (1 << 24) -#endif - -/////////////////////////////////////////////// -// -// stbi__context struct and start_xxx functions - -// stbi__context structure is our basic context used by all images, so it -// contains all the IO context, plus some basic image information -typedef struct -{ - stbi__uint32 img_x, img_y; - int img_n, img_out_n; - - stbi_io_callbacks io; - void *io_user_data; - - int read_from_callbacks; - int buflen; - stbi_uc buffer_start[128]; - int callback_already_read; - - stbi_uc *img_buffer, *img_buffer_end; - stbi_uc *img_buffer_original, *img_buffer_original_end; -} stbi__context; - - -static void stbi__refill_buffer(stbi__context *s); - -// initialize a memory-decode context -static void stbi__start_mem(stbi__context *s, stbi_uc const *buffer, int len) -{ - s->io.read = NULL; - s->read_from_callbacks = 0; - s->callback_already_read = 0; - s->img_buffer = s->img_buffer_original = (stbi_uc *) buffer; - s->img_buffer_end = s->img_buffer_original_end = (stbi_uc *) buffer+len; -} - -// initialize a callback-based context -static void stbi__start_callbacks(stbi__context *s, stbi_io_callbacks *c, void *user) -{ - s->io = *c; - s->io_user_data = user; - s->buflen = sizeof(s->buffer_start); - s->read_from_callbacks = 1; - s->callback_already_read = 0; - s->img_buffer = s->img_buffer_original = s->buffer_start; - stbi__refill_buffer(s); - s->img_buffer_original_end = s->img_buffer_end; -} - -#ifndef STBI_NO_STDIO - -static int stbi__stdio_read(void *user, char *data, int size) -{ - return (int) fread(data,1,size,(FILE*) user); -} - -static void stbi__stdio_skip(void *user, int n) -{ - int ch; - fseek((FILE*) user, n, SEEK_CUR); - ch = fgetc((FILE*) user); /* have to read a byte to reset feof()'s flag */ - if (ch != EOF) { - ungetc(ch, (FILE *) user); /* push byte back onto stream if valid. */ - } -} - -static int stbi__stdio_eof(void *user) -{ - return feof((FILE*) user) || ferror((FILE *) user); -} - -static stbi_io_callbacks stbi__stdio_callbacks = -{ - stbi__stdio_read, - stbi__stdio_skip, - stbi__stdio_eof, -}; - -static void stbi__start_file(stbi__context *s, FILE *f) -{ - stbi__start_callbacks(s, &stbi__stdio_callbacks, (void *) f); -} - -//static void stop_file(stbi__context *s) { } - -#endif // !STBI_NO_STDIO - -static void stbi__rewind(stbi__context *s) -{ - // conceptually rewind SHOULD rewind to the beginning of the stream, - // but we just rewind to the beginning of the initial buffer, because - // we only use it after doing 'test', which only ever looks at at most 92 bytes - s->img_buffer = s->img_buffer_original; - s->img_buffer_end = s->img_buffer_original_end; -} - -enum -{ - STBI_ORDER_RGB, - STBI_ORDER_BGR -}; - -typedef struct -{ - int bits_per_channel; - int num_channels; - int channel_order; -} stbi__result_info; - -#ifndef STBI_NO_JPEG -static int stbi__jpeg_test(stbi__context *s); -static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); -static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp); -#endif - -#ifndef STBI_NO_PNG -static int stbi__png_test(stbi__context *s); -static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); -static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp); -static int stbi__png_is16(stbi__context *s); -#endif - -#ifndef STBI_NO_BMP -static int stbi__bmp_test(stbi__context *s); -static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); -static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp); -#endif - -#ifndef STBI_NO_TGA -static int stbi__tga_test(stbi__context *s); -static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); -static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp); -#endif - -#ifndef STBI_NO_PSD -static int stbi__psd_test(stbi__context *s); -static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc); -static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp); -static int stbi__psd_is16(stbi__context *s); -#endif - -#ifndef STBI_NO_HDR -static int stbi__hdr_test(stbi__context *s); -static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); -static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp); -#endif - -#ifndef STBI_NO_PIC -static int stbi__pic_test(stbi__context *s); -static void *stbi__pic_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); -static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp); -#endif - -#ifndef STBI_NO_GIF -static int stbi__gif_test(stbi__context *s); -static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); -static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp); -static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp); -#endif - -#ifndef STBI_NO_PNM -static int stbi__pnm_test(stbi__context *s); -static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); -static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp); -static int stbi__pnm_is16(stbi__context *s); -#endif - -static -#ifdef STBI_THREAD_LOCAL -STBI_THREAD_LOCAL -#endif -const char *stbi__g_failure_reason; - -STBIDEF const char *stbi_failure_reason(void) -{ - return stbi__g_failure_reason; -} - -#ifndef STBI_NO_FAILURE_STRINGS -static int stbi__err(const char *str) -{ - stbi__g_failure_reason = str; - return 0; -} -#endif - -static void *stbi__malloc(size_t size) -{ - return STBI_MALLOC(size); -} - -// stb_image uses ints pervasively, including for offset calculations. -// therefore the largest decoded image size we can support with the -// current code, even on 64-bit targets, is INT_MAX. this is not a -// significant limitation for the intended use case. -// -// we do, however, need to make sure our size calculations don't -// overflow. hence a few helper functions for size calculations that -// multiply integers together, making sure that they're non-negative -// and no overflow occurs. - -// return 1 if the sum is valid, 0 on overflow. -// negative terms are considered invalid. -static int stbi__addsizes_valid(int a, int b) -{ - if (b < 0) return 0; - // now 0 <= b <= INT_MAX, hence also - // 0 <= INT_MAX - b <= INTMAX. - // And "a + b <= INT_MAX" (which might overflow) is the - // same as a <= INT_MAX - b (no overflow) - return a <= INT_MAX - b; -} - -// returns 1 if the product is valid, 0 on overflow. -// negative factors are considered invalid. -static int stbi__mul2sizes_valid(int a, int b) -{ - if (a < 0 || b < 0) return 0; - if (b == 0) return 1; // mul-by-0 is always safe - // portable way to check for no overflows in a*b - return a <= INT_MAX/b; -} - -#if !defined(STBI_NO_JPEG) || !defined(STBI_NO_PNG) || !defined(STBI_NO_TGA) || !defined(STBI_NO_HDR) -// returns 1 if "a*b + add" has no negative terms/factors and doesn't overflow -static int stbi__mad2sizes_valid(int a, int b, int add) -{ - return stbi__mul2sizes_valid(a, b) && stbi__addsizes_valid(a*b, add); -} -#endif - -// returns 1 if "a*b*c + add" has no negative terms/factors and doesn't overflow -static int stbi__mad3sizes_valid(int a, int b, int c, int add) -{ - return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) && - stbi__addsizes_valid(a*b*c, add); -} - -// returns 1 if "a*b*c*d + add" has no negative terms/factors and doesn't overflow -#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) || !defined(STBI_NO_PNM) -static int stbi__mad4sizes_valid(int a, int b, int c, int d, int add) -{ - return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) && - stbi__mul2sizes_valid(a*b*c, d) && stbi__addsizes_valid(a*b*c*d, add); -} -#endif - -#if !defined(STBI_NO_JPEG) || !defined(STBI_NO_PNG) || !defined(STBI_NO_TGA) || !defined(STBI_NO_HDR) -// mallocs with size overflow checking -static void *stbi__malloc_mad2(int a, int b, int add) -{ - if (!stbi__mad2sizes_valid(a, b, add)) return NULL; - return stbi__malloc(a*b + add); -} -#endif - -static void *stbi__malloc_mad3(int a, int b, int c, int add) -{ - if (!stbi__mad3sizes_valid(a, b, c, add)) return NULL; - return stbi__malloc(a*b*c + add); -} - -#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) || !defined(STBI_NO_PNM) -static void *stbi__malloc_mad4(int a, int b, int c, int d, int add) -{ - if (!stbi__mad4sizes_valid(a, b, c, d, add)) return NULL; - return stbi__malloc(a*b*c*d + add); -} -#endif - -// returns 1 if the sum of two signed ints is valid (between -2^31 and 2^31-1 inclusive), 0 on overflow. -static int stbi__addints_valid(int a, int b) -{ - if ((a >= 0) != (b >= 0)) return 1; // a and b have different signs, so no overflow - if (a < 0 && b < 0) return a >= INT_MIN - b; // same as a + b >= INT_MIN; INT_MIN - b cannot overflow since b < 0. - return a <= INT_MAX - b; -} - -// returns 1 if the product of two ints fits in a signed short, 0 on overflow. -static int stbi__mul2shorts_valid(int a, int b) -{ - if (b == 0 || b == -1) return 1; // multiplication by 0 is always 0; check for -1 so SHRT_MIN/b doesn't overflow - if ((a >= 0) == (b >= 0)) return a <= SHRT_MAX/b; // product is positive, so similar to mul2sizes_valid - if (b < 0) return a <= SHRT_MIN / b; // same as a * b >= SHRT_MIN - return a >= SHRT_MIN / b; -} - -// stbi__err - error -// stbi__errpf - error returning pointer to float -// stbi__errpuc - error returning pointer to unsigned char - -#ifdef STBI_NO_FAILURE_STRINGS - #define stbi__err(x,y) 0 -#elif defined(STBI_FAILURE_USERMSG) - #define stbi__err(x,y) stbi__err(y) -#else - #define stbi__err(x,y) stbi__err(x) -#endif - -#define stbi__errpf(x,y) ((float *)(size_t) (stbi__err(x,y)?NULL:NULL)) -#define stbi__errpuc(x,y) ((unsigned char *)(size_t) (stbi__err(x,y)?NULL:NULL)) - -STBIDEF void stbi_image_free(void *retval_from_stbi_load) -{ - STBI_FREE(retval_from_stbi_load); -} - -#ifndef STBI_NO_LINEAR -static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp); -#endif - -#ifndef STBI_NO_HDR -static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp); -#endif - -static int stbi__vertically_flip_on_load_global = 0; - -STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip) -{ - stbi__vertically_flip_on_load_global = flag_true_if_should_flip; -} - -#ifndef STBI_THREAD_LOCAL -#define stbi__vertically_flip_on_load stbi__vertically_flip_on_load_global -#else -static STBI_THREAD_LOCAL int stbi__vertically_flip_on_load_local, stbi__vertically_flip_on_load_set; - -STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip) -{ - stbi__vertically_flip_on_load_local = flag_true_if_should_flip; - stbi__vertically_flip_on_load_set = 1; -} - -#define stbi__vertically_flip_on_load (stbi__vertically_flip_on_load_set \ - ? stbi__vertically_flip_on_load_local \ - : stbi__vertically_flip_on_load_global) -#endif // STBI_THREAD_LOCAL - -static void *stbi__load_main(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc) -{ - memset(ri, 0, sizeof(*ri)); // make sure it's initialized if we add new fields - ri->bits_per_channel = 8; // default is 8 so most paths don't have to be changed - ri->channel_order = STBI_ORDER_RGB; // all current input & output are this, but this is here so we can add BGR order - ri->num_channels = 0; - - // test the formats with a very explicit header first (at least a FOURCC - // or distinctive magic number first) - #ifndef STBI_NO_PNG - if (stbi__png_test(s)) return stbi__png_load(s,x,y,comp,req_comp, ri); - #endif - #ifndef STBI_NO_BMP - if (stbi__bmp_test(s)) return stbi__bmp_load(s,x,y,comp,req_comp, ri); - #endif - #ifndef STBI_NO_GIF - if (stbi__gif_test(s)) return stbi__gif_load(s,x,y,comp,req_comp, ri); - #endif - #ifndef STBI_NO_PSD - if (stbi__psd_test(s)) return stbi__psd_load(s,x,y,comp,req_comp, ri, bpc); - #else - STBI_NOTUSED(bpc); - #endif - #ifndef STBI_NO_PIC - if (stbi__pic_test(s)) return stbi__pic_load(s,x,y,comp,req_comp, ri); - #endif - - // then the formats that can end up attempting to load with just 1 or 2 - // bytes matching expectations; these are prone to false positives, so - // try them later - #ifndef STBI_NO_JPEG - if (stbi__jpeg_test(s)) return stbi__jpeg_load(s,x,y,comp,req_comp, ri); - #endif - #ifndef STBI_NO_PNM - if (stbi__pnm_test(s)) return stbi__pnm_load(s,x,y,comp,req_comp, ri); - #endif - - #ifndef STBI_NO_HDR - if (stbi__hdr_test(s)) { - float *hdr = stbi__hdr_load(s, x,y,comp,req_comp, ri); - return stbi__hdr_to_ldr(hdr, *x, *y, req_comp ? req_comp : *comp); - } - #endif - - #ifndef STBI_NO_TGA - // test tga last because it's a crappy test! - if (stbi__tga_test(s)) - return stbi__tga_load(s,x,y,comp,req_comp, ri); - #endif - - return stbi__errpuc("unknown image type", "Image not of any known type, or corrupt"); -} - -static stbi_uc *stbi__convert_16_to_8(stbi__uint16 *orig, int w, int h, int channels) -{ - int i; - int img_len = w * h * channels; - stbi_uc *reduced; - - reduced = (stbi_uc *) stbi__malloc(img_len); - if (reduced == NULL) return stbi__errpuc("outofmem", "Out of memory"); - - for (i = 0; i < img_len; ++i) - reduced[i] = (stbi_uc)((orig[i] >> 8) & 0xFF); // top half of each byte is sufficient approx of 16->8 bit scaling - - STBI_FREE(orig); - return reduced; -} - -static stbi__uint16 *stbi__convert_8_to_16(stbi_uc *orig, int w, int h, int channels) -{ - int i; - int img_len = w * h * channels; - stbi__uint16 *enlarged; - - enlarged = (stbi__uint16 *) stbi__malloc(img_len*2); - if (enlarged == NULL) return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory"); - - for (i = 0; i < img_len; ++i) - enlarged[i] = (stbi__uint16)((orig[i] << 8) + orig[i]); // replicate to high and low byte, maps 0->0, 255->0xffff - - STBI_FREE(orig); - return enlarged; -} - -static void stbi__vertical_flip(void *image, int w, int h, int bytes_per_pixel) -{ - int row; - size_t bytes_per_row = (size_t)w * bytes_per_pixel; - stbi_uc temp[2048]; - stbi_uc *bytes = (stbi_uc *)image; - - for (row = 0; row < (h>>1); row++) { - stbi_uc *row0 = bytes + row*bytes_per_row; - stbi_uc *row1 = bytes + (h - row - 1)*bytes_per_row; - // swap row0 with row1 - size_t bytes_left = bytes_per_row; - while (bytes_left) { - size_t bytes_copy = (bytes_left < sizeof(temp)) ? bytes_left : sizeof(temp); - memcpy(temp, row0, bytes_copy); - memcpy(row0, row1, bytes_copy); - memcpy(row1, temp, bytes_copy); - row0 += bytes_copy; - row1 += bytes_copy; - bytes_left -= bytes_copy; - } - } -} - -#ifndef STBI_NO_GIF -static void stbi__vertical_flip_slices(void *image, int w, int h, int z, int bytes_per_pixel) -{ - int slice; - int slice_size = w * h * bytes_per_pixel; - - stbi_uc *bytes = (stbi_uc *)image; - for (slice = 0; slice < z; ++slice) { - stbi__vertical_flip(bytes, w, h, bytes_per_pixel); - bytes += slice_size; - } -} -#endif - -static unsigned char *stbi__load_and_postprocess_8bit(stbi__context *s, int *x, int *y, int *comp, int req_comp) -{ - stbi__result_info ri; - void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 8); - - if (result == NULL) - return NULL; - - // it is the responsibility of the loaders to make sure we get either 8 or 16 bit. - STBI_ASSERT(ri.bits_per_channel == 8 || ri.bits_per_channel == 16); - - if (ri.bits_per_channel != 8) { - result = stbi__convert_16_to_8((stbi__uint16 *) result, *x, *y, req_comp == 0 ? *comp : req_comp); - ri.bits_per_channel = 8; - } - - // @TODO: move stbi__convert_format to here - - if (stbi__vertically_flip_on_load) { - int channels = req_comp ? req_comp : *comp; - stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi_uc)); - } - - return (unsigned char *) result; -} - -static stbi__uint16 *stbi__load_and_postprocess_16bit(stbi__context *s, int *x, int *y, int *comp, int req_comp) -{ - stbi__result_info ri; - void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 16); - - if (result == NULL) - return NULL; - - // it is the responsibility of the loaders to make sure we get either 8 or 16 bit. - STBI_ASSERT(ri.bits_per_channel == 8 || ri.bits_per_channel == 16); - - if (ri.bits_per_channel != 16) { - result = stbi__convert_8_to_16((stbi_uc *) result, *x, *y, req_comp == 0 ? *comp : req_comp); - ri.bits_per_channel = 16; - } - - // @TODO: move stbi__convert_format16 to here - // @TODO: special case RGB-to-Y (and RGBA-to-YA) for 8-bit-to-16-bit case to keep more precision - - if (stbi__vertically_flip_on_load) { - int channels = req_comp ? req_comp : *comp; - stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi__uint16)); - } - - return (stbi__uint16 *) result; -} - -#if !defined(STBI_NO_HDR) && !defined(STBI_NO_LINEAR) -static void stbi__float_postprocess(float *result, int *x, int *y, int *comp, int req_comp) -{ - if (stbi__vertically_flip_on_load && result != NULL) { - int channels = req_comp ? req_comp : *comp; - stbi__vertical_flip(result, *x, *y, channels * sizeof(float)); - } -} -#endif - -#ifndef STBI_NO_STDIO - -#if defined(_WIN32) && defined(STBI_WINDOWS_UTF8) -STBI_EXTERN __declspec(dllimport) int __stdcall MultiByteToWideChar(unsigned int cp, unsigned long flags, const char *str, int cbmb, wchar_t *widestr, int cchwide); -STBI_EXTERN __declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int cp, unsigned long flags, const wchar_t *widestr, int cchwide, char *str, int cbmb, const char *defchar, int *used_default); -#endif - -#if defined(_WIN32) && defined(STBI_WINDOWS_UTF8) -STBIDEF int stbi_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input) -{ - return WideCharToMultiByte(65001 /* UTF8 */, 0, input, -1, buffer, (int) bufferlen, NULL, NULL); -} -#endif - -static FILE *stbi__fopen(char const *filename, char const *mode) -{ - FILE *f; -#if defined(_WIN32) && defined(STBI_WINDOWS_UTF8) - wchar_t wMode[64]; - wchar_t wFilename[1024]; - if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, filename, -1, wFilename, sizeof(wFilename)/sizeof(*wFilename))) - return 0; - - if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, mode, -1, wMode, sizeof(wMode)/sizeof(*wMode))) - return 0; - -#if defined(_MSC_VER) && _MSC_VER >= 1400 - if (0 != _wfopen_s(&f, wFilename, wMode)) - f = 0; -#else - f = _wfopen(wFilename, wMode); -#endif - -#elif defined(_MSC_VER) && _MSC_VER >= 1400 - if (0 != fopen_s(&f, filename, mode)) - f=0; -#else - f = fopen(filename, mode); -#endif - return f; -} - - -STBIDEF stbi_uc *stbi_load(char const *filename, int *x, int *y, int *comp, int req_comp) -{ - FILE *f = stbi__fopen(filename, "rb"); - unsigned char *result; - if (!f) return stbi__errpuc("can't fopen", "Unable to open file"); - result = stbi_load_from_file(f,x,y,comp,req_comp); - fclose(f); - return result; -} - -STBIDEF stbi_uc *stbi_load_from_file(FILE *f, int *x, int *y, int *comp, int req_comp) -{ - unsigned char *result; - stbi__context s; - stbi__start_file(&s,f); - result = stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); - if (result) { - // need to 'unget' all the characters in the IO buffer - fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR); - } - return result; -} - -STBIDEF stbi__uint16 *stbi_load_from_file_16(FILE *f, int *x, int *y, int *comp, int req_comp) -{ - stbi__uint16 *result; - stbi__context s; - stbi__start_file(&s,f); - result = stbi__load_and_postprocess_16bit(&s,x,y,comp,req_comp); - if (result) { - // need to 'unget' all the characters in the IO buffer - fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR); - } - return result; -} - -STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp) -{ - FILE *f = stbi__fopen(filename, "rb"); - stbi__uint16 *result; - if (!f) return (stbi_us *) stbi__errpuc("can't fopen", "Unable to open file"); - result = stbi_load_from_file_16(f,x,y,comp,req_comp); - fclose(f); - return result; -} - - -#endif //!STBI_NO_STDIO - -STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels) -{ - stbi__context s; - stbi__start_mem(&s,buffer,len); - return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels); -} - -STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels) -{ - stbi__context s; - stbi__start_callbacks(&s, (stbi_io_callbacks *)clbk, user); - return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels); -} - -STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp) -{ - stbi__context s; - stbi__start_mem(&s,buffer,len); - return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); -} - -STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp) -{ - stbi__context s; - stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); - return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); -} - -#ifndef STBI_NO_GIF -STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp) -{ - unsigned char *result; - stbi__context s; - stbi__start_mem(&s,buffer,len); - - result = (unsigned char*) stbi__load_gif_main(&s, delays, x, y, z, comp, req_comp); - if (stbi__vertically_flip_on_load) { - stbi__vertical_flip_slices( result, *x, *y, *z, *comp ); - } - - return result; -} -#endif - -#ifndef STBI_NO_LINEAR -static float *stbi__loadf_main(stbi__context *s, int *x, int *y, int *comp, int req_comp) -{ - unsigned char *data; - #ifndef STBI_NO_HDR - if (stbi__hdr_test(s)) { - stbi__result_info ri; - float *hdr_data = stbi__hdr_load(s,x,y,comp,req_comp, &ri); - if (hdr_data) - stbi__float_postprocess(hdr_data,x,y,comp,req_comp); - return hdr_data; - } - #endif - data = stbi__load_and_postprocess_8bit(s, x, y, comp, req_comp); - if (data) - return stbi__ldr_to_hdr(data, *x, *y, req_comp ? req_comp : *comp); - return stbi__errpf("unknown image type", "Image not of any known type, or corrupt"); -} - -STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp) -{ - stbi__context s; - stbi__start_mem(&s,buffer,len); - return stbi__loadf_main(&s,x,y,comp,req_comp); -} - -STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp) -{ - stbi__context s; - stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); - return stbi__loadf_main(&s,x,y,comp,req_comp); -} - -#ifndef STBI_NO_STDIO -STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp) -{ - float *result; - FILE *f = stbi__fopen(filename, "rb"); - if (!f) return stbi__errpf("can't fopen", "Unable to open file"); - result = stbi_loadf_from_file(f,x,y,comp,req_comp); - fclose(f); - return result; -} - -STBIDEF float *stbi_loadf_from_file(FILE *f, int *x, int *y, int *comp, int req_comp) -{ - stbi__context s; - stbi__start_file(&s,f); - return stbi__loadf_main(&s,x,y,comp,req_comp); -} -#endif // !STBI_NO_STDIO - -#endif // !STBI_NO_LINEAR - -// these is-hdr-or-not is defined independent of whether STBI_NO_LINEAR is -// defined, for API simplicity; if STBI_NO_LINEAR is defined, it always -// reports false! - -STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len) -{ - #ifndef STBI_NO_HDR - stbi__context s; - stbi__start_mem(&s,buffer,len); - return stbi__hdr_test(&s); - #else - STBI_NOTUSED(buffer); - STBI_NOTUSED(len); - return 0; - #endif -} - -#ifndef STBI_NO_STDIO -STBIDEF int stbi_is_hdr (char const *filename) -{ - FILE *f = stbi__fopen(filename, "rb"); - int result=0; - if (f) { - result = stbi_is_hdr_from_file(f); - fclose(f); - } - return result; -} - -STBIDEF int stbi_is_hdr_from_file(FILE *f) -{ - #ifndef STBI_NO_HDR - long pos = ftell(f); - int res; - stbi__context s; - stbi__start_file(&s,f); - res = stbi__hdr_test(&s); - fseek(f, pos, SEEK_SET); - return res; - #else - STBI_NOTUSED(f); - return 0; - #endif -} -#endif // !STBI_NO_STDIO - -STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user) -{ - #ifndef STBI_NO_HDR - stbi__context s; - stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); - return stbi__hdr_test(&s); - #else - STBI_NOTUSED(clbk); - STBI_NOTUSED(user); - return 0; - #endif -} - -#ifndef STBI_NO_LINEAR -static float stbi__l2h_gamma=2.2f, stbi__l2h_scale=1.0f; - -STBIDEF void stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; } -STBIDEF void stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; } -#endif - -static float stbi__h2l_gamma_i=1.0f/2.2f, stbi__h2l_scale_i=1.0f; - -STBIDEF void stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; } -STBIDEF void stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; } - - -////////////////////////////////////////////////////////////////////////////// -// -// Common code used by all image loaders -// - -enum -{ - STBI__SCAN_load=0, - STBI__SCAN_type, - STBI__SCAN_header -}; - -static void stbi__refill_buffer(stbi__context *s) -{ - int n = (s->io.read)(s->io_user_data,(char*)s->buffer_start,s->buflen); - s->callback_already_read += (int) (s->img_buffer - s->img_buffer_original); - if (n == 0) { - // at end of file, treat same as if from memory, but need to handle case - // where s->img_buffer isn't pointing to safe memory, e.g. 0-byte file - s->read_from_callbacks = 0; - s->img_buffer = s->buffer_start; - s->img_buffer_end = s->buffer_start+1; - *s->img_buffer = 0; - } else { - s->img_buffer = s->buffer_start; - s->img_buffer_end = s->buffer_start + n; - } -} - -stbi_inline static stbi_uc stbi__get8(stbi__context *s) -{ - if (s->img_buffer < s->img_buffer_end) - return *s->img_buffer++; - if (s->read_from_callbacks) { - stbi__refill_buffer(s); - return *s->img_buffer++; - } - return 0; -} - -#if defined(STBI_NO_JPEG) && defined(STBI_NO_HDR) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) -// nothing -#else -stbi_inline static int stbi__at_eof(stbi__context *s) -{ - if (s->io.read) { - if (!(s->io.eof)(s->io_user_data)) return 0; - // if feof() is true, check if buffer = end - // special case: we've only got the special 0 character at the end - if (s->read_from_callbacks == 0) return 1; - } - - return s->img_buffer >= s->img_buffer_end; -} -#endif - -#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) -// nothing -#else -static void stbi__skip(stbi__context *s, int n) -{ - if (n == 0) return; // already there! - if (n < 0) { - s->img_buffer = s->img_buffer_end; - return; - } - if (s->io.read) { - int blen = (int) (s->img_buffer_end - s->img_buffer); - if (blen < n) { - s->img_buffer = s->img_buffer_end; - (s->io.skip)(s->io_user_data, n - blen); - return; - } - } - s->img_buffer += n; -} -#endif - -#if defined(STBI_NO_PNG) && defined(STBI_NO_TGA) && defined(STBI_NO_HDR) && defined(STBI_NO_PNM) -// nothing -#else -static int stbi__getn(stbi__context *s, stbi_uc *buffer, int n) -{ - if (s->io.read) { - int blen = (int) (s->img_buffer_end - s->img_buffer); - if (blen < n) { - int res, count; - - memcpy(buffer, s->img_buffer, blen); - - count = (s->io.read)(s->io_user_data, (char*) buffer + blen, n - blen); - res = (count == (n-blen)); - s->img_buffer = s->img_buffer_end; - return res; - } - } - - if (s->img_buffer+n <= s->img_buffer_end) { - memcpy(buffer, s->img_buffer, n); - s->img_buffer += n; - return 1; - } else - return 0; -} -#endif - -#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_PSD) && defined(STBI_NO_PIC) -// nothing -#else -static int stbi__get16be(stbi__context *s) -{ - int z = stbi__get8(s); - return (z << 8) + stbi__get8(s); -} -#endif - -#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) && defined(STBI_NO_PIC) -// nothing -#else -static stbi__uint32 stbi__get32be(stbi__context *s) -{ - stbi__uint32 z = stbi__get16be(s); - return (z << 16) + stbi__get16be(s); -} -#endif - -#if defined(STBI_NO_BMP) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) -// nothing -#else -static int stbi__get16le(stbi__context *s) -{ - int z = stbi__get8(s); - return z + (stbi__get8(s) << 8); -} -#endif - -#ifndef STBI_NO_BMP -static stbi__uint32 stbi__get32le(stbi__context *s) -{ - stbi__uint32 z = stbi__get16le(s); - z += (stbi__uint32)stbi__get16le(s) << 16; - return z; -} -#endif - -#define STBI__BYTECAST(x) ((stbi_uc) ((x) & 255)) // truncate int to byte without warnings - -#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) -// nothing -#else -////////////////////////////////////////////////////////////////////////////// -// -// generic converter from built-in img_n to req_comp -// individual types do this automatically as much as possible (e.g. jpeg -// does all cases internally since it needs to colorspace convert anyway, -// and it never has alpha, so very few cases ). png can automatically -// interleave an alpha=255 channel, but falls back to this for other cases -// -// assume data buffer is malloced, so malloc a new one and free that one -// only failure mode is malloc failing - -static stbi_uc stbi__compute_y(int r, int g, int b) -{ - return (stbi_uc) (((r*77) + (g*150) + (29*b)) >> 8); -} -#endif - -#if defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) -// nothing -#else -static unsigned char *stbi__convert_format(unsigned char *data, int img_n, int req_comp, unsigned int x, unsigned int y) -{ - int i,j; - unsigned char *good; - - if (req_comp == img_n) return data; - STBI_ASSERT(req_comp >= 1 && req_comp <= 4); - - good = (unsigned char *) stbi__malloc_mad3(req_comp, x, y, 0); - if (good == NULL) { - STBI_FREE(data); - return stbi__errpuc("outofmem", "Out of memory"); - } - - for (j=0; j < (int) y; ++j) { - unsigned char *src = data + j * x * img_n ; - unsigned char *dest = good + j * x * req_comp; - - #define STBI__COMBO(a,b) ((a)*8+(b)) - #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b) - // convert source image with img_n components to one with req_comp components; - // avoid switch per pixel, so use switch per scanline and massive macros - switch (STBI__COMBO(img_n, req_comp)) { - STBI__CASE(1,2) { dest[0]=src[0]; dest[1]=255; } break; - STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; - STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=255; } break; - STBI__CASE(2,1) { dest[0]=src[0]; } break; - STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; - STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=src[1]; } break; - STBI__CASE(3,4) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2];dest[3]=255; } break; - STBI__CASE(3,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break; - STBI__CASE(3,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); dest[1] = 255; } break; - STBI__CASE(4,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break; - STBI__CASE(4,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); dest[1] = src[3]; } break; - STBI__CASE(4,3) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2]; } break; - default: STBI_ASSERT(0); STBI_FREE(data); STBI_FREE(good); return stbi__errpuc("unsupported", "Unsupported format conversion"); - } - #undef STBI__CASE - } - - STBI_FREE(data); - return good; -} -#endif - -#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) -// nothing -#else -static stbi__uint16 stbi__compute_y_16(int r, int g, int b) -{ - return (stbi__uint16) (((r*77) + (g*150) + (29*b)) >> 8); -} -#endif - -#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) -// nothing -#else -static stbi__uint16 *stbi__convert_format16(stbi__uint16 *data, int img_n, int req_comp, unsigned int x, unsigned int y) -{ - int i,j; - stbi__uint16 *good; - - if (req_comp == img_n) return data; - STBI_ASSERT(req_comp >= 1 && req_comp <= 4); - - good = (stbi__uint16 *) stbi__malloc(req_comp * x * y * 2); - if (good == NULL) { - STBI_FREE(data); - return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory"); - } - - for (j=0; j < (int) y; ++j) { - stbi__uint16 *src = data + j * x * img_n ; - stbi__uint16 *dest = good + j * x * req_comp; - - #define STBI__COMBO(a,b) ((a)*8+(b)) - #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b) - // convert source image with img_n components to one with req_comp components; - // avoid switch per pixel, so use switch per scanline and massive macros - switch (STBI__COMBO(img_n, req_comp)) { - STBI__CASE(1,2) { dest[0]=src[0]; dest[1]=0xffff; } break; - STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; - STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=0xffff; } break; - STBI__CASE(2,1) { dest[0]=src[0]; } break; - STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; - STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=src[1]; } break; - STBI__CASE(3,4) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2];dest[3]=0xffff; } break; - STBI__CASE(3,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break; - STBI__CASE(3,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); dest[1] = 0xffff; } break; - STBI__CASE(4,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break; - STBI__CASE(4,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); dest[1] = src[3]; } break; - STBI__CASE(4,3) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2]; } break; - default: STBI_ASSERT(0); STBI_FREE(data); STBI_FREE(good); return (stbi__uint16*) stbi__errpuc("unsupported", "Unsupported format conversion"); - } - #undef STBI__CASE - } - - STBI_FREE(data); - return good; -} -#endif - -#ifndef STBI_NO_LINEAR -static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp) -{ - int i,k,n; - float *output; - if (!data) return NULL; - output = (float *) stbi__malloc_mad4(x, y, comp, sizeof(float), 0); - if (output == NULL) { STBI_FREE(data); return stbi__errpf("outofmem", "Out of memory"); } - // compute number of non-alpha components - if (comp & 1) n = comp; else n = comp-1; - for (i=0; i < x*y; ++i) { - for (k=0; k < n; ++k) { - output[i*comp + k] = (float) (pow(data[i*comp+k]/255.0f, stbi__l2h_gamma) * stbi__l2h_scale); - } - } - if (n < comp) { - for (i=0; i < x*y; ++i) { - output[i*comp + n] = data[i*comp + n]/255.0f; - } - } - STBI_FREE(data); - return output; -} -#endif - -#ifndef STBI_NO_HDR -#define stbi__float2int(x) ((int) (x)) -static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp) -{ - int i,k,n; - stbi_uc *output; - if (!data) return NULL; - output = (stbi_uc *) stbi__malloc_mad3(x, y, comp, 0); - if (output == NULL) { STBI_FREE(data); return stbi__errpuc("outofmem", "Out of memory"); } - // compute number of non-alpha components - if (comp & 1) n = comp; else n = comp-1; - for (i=0; i < x*y; ++i) { - for (k=0; k < n; ++k) { - float z = (float) pow(data[i*comp+k]*stbi__h2l_scale_i, stbi__h2l_gamma_i) * 255 + 0.5f; - if (z < 0) z = 0; - if (z > 255) z = 255; - output[i*comp + k] = (stbi_uc) stbi__float2int(z); - } - if (k < comp) { - float z = data[i*comp+k] * 255 + 0.5f; - if (z < 0) z = 0; - if (z > 255) z = 255; - output[i*comp + k] = (stbi_uc) stbi__float2int(z); - } - } - STBI_FREE(data); - return output; -} -#endif - -////////////////////////////////////////////////////////////////////////////// -// -// "baseline" JPEG/JFIF decoder -// -// simple implementation -// - doesn't support delayed output of y-dimension -// - simple interface (only one output format: 8-bit interleaved RGB) -// - doesn't try to recover corrupt jpegs -// - doesn't allow partial loading, loading multiple at once -// - still fast on x86 (copying globals into locals doesn't help x86) -// - allocates lots of intermediate memory (full size of all components) -// - non-interleaved case requires this anyway -// - allows good upsampling (see next) -// high-quality -// - upsampled channels are bilinearly interpolated, even across blocks -// - quality integer IDCT derived from IJG's 'slow' -// performance -// - fast huffman; reasonable integer IDCT -// - some SIMD kernels for common paths on targets with SSE2/NEON -// - uses a lot of intermediate memory, could cache poorly - -#ifndef STBI_NO_JPEG - -// huffman decoding acceleration -#define FAST_BITS 9 // larger handles more cases; smaller stomps less cache - -typedef struct -{ - stbi_uc fast[1 << FAST_BITS]; - // weirdly, repacking this into AoS is a 10% speed loss, instead of a win - stbi__uint16 code[256]; - stbi_uc values[256]; - stbi_uc size[257]; - unsigned int maxcode[18]; - int delta[17]; // old 'firstsymbol' - old 'firstcode' -} stbi__huffman; - -typedef struct -{ - stbi__context *s; - stbi__huffman huff_dc[4]; - stbi__huffman huff_ac[4]; - stbi__uint16 dequant[4][64]; - stbi__int16 fast_ac[4][1 << FAST_BITS]; - -// sizes for components, interleaved MCUs - int img_h_max, img_v_max; - int img_mcu_x, img_mcu_y; - int img_mcu_w, img_mcu_h; - -// definition of jpeg image component - struct - { - int id; - int h,v; - int tq; - int hd,ha; - int dc_pred; - - int x,y,w2,h2; - stbi_uc *data; - void *raw_data, *raw_coeff; - stbi_uc *linebuf; - short *coeff; // progressive only - int coeff_w, coeff_h; // number of 8x8 coefficient blocks - } img_comp[4]; - - stbi__uint32 code_buffer; // jpeg entropy-coded buffer - int code_bits; // number of valid bits - unsigned char marker; // marker seen while filling entropy buffer - int nomore; // flag if we saw a marker so must stop - - int progressive; - int spec_start; - int spec_end; - int succ_high; - int succ_low; - int eob_run; - int jfif; - int app14_color_transform; // Adobe APP14 tag - int rgb; - - int scan_n, order[4]; - int restart_interval, todo; - -// kernels - void (*idct_block_kernel)(stbi_uc *out, int out_stride, short data[64]); - void (*YCbCr_to_RGB_kernel)(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step); - stbi_uc *(*resample_row_hv_2_kernel)(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs); -} stbi__jpeg; - -static int stbi__build_huffman(stbi__huffman *h, int *count) -{ - int i,j,k=0; - unsigned int code; - // build size list for each symbol (from JPEG spec) - for (i=0; i < 16; ++i) { - for (j=0; j < count[i]; ++j) { - h->size[k++] = (stbi_uc) (i+1); - if(k >= 257) return stbi__err("bad size list","Corrupt JPEG"); - } - } - h->size[k] = 0; - - // compute actual symbols (from jpeg spec) - code = 0; - k = 0; - for(j=1; j <= 16; ++j) { - // compute delta to add to code to compute symbol id - h->delta[j] = k - code; - if (h->size[k] == j) { - while (h->size[k] == j) - h->code[k++] = (stbi__uint16) (code++); - if (code-1 >= (1u << j)) return stbi__err("bad code lengths","Corrupt JPEG"); - } - // compute largest code + 1 for this size, preshifted as needed later - h->maxcode[j] = code << (16-j); - code <<= 1; - } - h->maxcode[j] = 0xffffffff; - - // build non-spec acceleration table; 255 is flag for not-accelerated - memset(h->fast, 255, 1 << FAST_BITS); - for (i=0; i < k; ++i) { - int s = h->size[i]; - if (s <= FAST_BITS) { - int c = h->code[i] << (FAST_BITS-s); - int m = 1 << (FAST_BITS-s); - for (j=0; j < m; ++j) { - h->fast[c+j] = (stbi_uc) i; - } - } - } - return 1; -} - -// build a table that decodes both magnitude and value of small ACs in -// one go. -static void stbi__build_fast_ac(stbi__int16 *fast_ac, stbi__huffman *h) -{ - int i; - for (i=0; i < (1 << FAST_BITS); ++i) { - stbi_uc fast = h->fast[i]; - fast_ac[i] = 0; - if (fast < 255) { - int rs = h->values[fast]; - int run = (rs >> 4) & 15; - int magbits = rs & 15; - int len = h->size[fast]; - - if (magbits && len + magbits <= FAST_BITS) { - // magnitude code followed by receive_extend code - int k = ((i << len) & ((1 << FAST_BITS) - 1)) >> (FAST_BITS - magbits); - int m = 1 << (magbits - 1); - if (k < m) k += (~0U << magbits) + 1; - // if the result is small enough, we can fit it in fast_ac table - if (k >= -128 && k <= 127) - fast_ac[i] = (stbi__int16) ((k * 256) + (run * 16) + (len + magbits)); - } - } - } -} - -static void stbi__grow_buffer_unsafe(stbi__jpeg *j) -{ - do { - unsigned int b = j->nomore ? 0 : stbi__get8(j->s); - if (b == 0xff) { - int c = stbi__get8(j->s); - while (c == 0xff) c = stbi__get8(j->s); // consume fill bytes - if (c != 0) { - j->marker = (unsigned char) c; - j->nomore = 1; - return; - } - } - j->code_buffer |= b << (24 - j->code_bits); - j->code_bits += 8; - } while (j->code_bits <= 24); -} - -// (1 << n) - 1 -static const stbi__uint32 stbi__bmask[17]={0,1,3,7,15,31,63,127,255,511,1023,2047,4095,8191,16383,32767,65535}; - -// decode a jpeg huffman value from the bitstream -stbi_inline static int stbi__jpeg_huff_decode(stbi__jpeg *j, stbi__huffman *h) -{ - unsigned int temp; - int c,k; - - if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); - - // look at the top FAST_BITS and determine what symbol ID it is, - // if the code is <= FAST_BITS - c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); - k = h->fast[c]; - if (k < 255) { - int s = h->size[k]; - if (s > j->code_bits) - return -1; - j->code_buffer <<= s; - j->code_bits -= s; - return h->values[k]; - } - - // naive test is to shift the code_buffer down so k bits are - // valid, then test against maxcode. To speed this up, we've - // preshifted maxcode left so that it has (16-k) 0s at the - // end; in other words, regardless of the number of bits, it - // wants to be compared against something shifted to have 16; - // that way we don't need to shift inside the loop. - temp = j->code_buffer >> 16; - for (k=FAST_BITS+1 ; ; ++k) - if (temp < h->maxcode[k]) - break; - if (k == 17) { - // error! code not found - j->code_bits -= 16; - return -1; - } - - if (k > j->code_bits) - return -1; - - // convert the huffman code to the symbol id - c = ((j->code_buffer >> (32 - k)) & stbi__bmask[k]) + h->delta[k]; - if(c < 0 || c >= 256) // symbol id out of bounds! - return -1; - STBI_ASSERT((((j->code_buffer) >> (32 - h->size[c])) & stbi__bmask[h->size[c]]) == h->code[c]); - - // convert the id to a symbol - j->code_bits -= k; - j->code_buffer <<= k; - return h->values[c]; -} - -// bias[n] = (-1<code_bits < n) stbi__grow_buffer_unsafe(j); - if (j->code_bits < n) return 0; // ran out of bits from stream, return 0s intead of continuing - - sgn = j->code_buffer >> 31; // sign bit always in MSB; 0 if MSB clear (positive), 1 if MSB set (negative) - k = stbi_lrot(j->code_buffer, n); - j->code_buffer = k & ~stbi__bmask[n]; - k &= stbi__bmask[n]; - j->code_bits -= n; - return k + (stbi__jbias[n] & (sgn - 1)); -} - -// get some unsigned bits -stbi_inline static int stbi__jpeg_get_bits(stbi__jpeg *j, int n) -{ - unsigned int k; - if (j->code_bits < n) stbi__grow_buffer_unsafe(j); - if (j->code_bits < n) return 0; // ran out of bits from stream, return 0s intead of continuing - k = stbi_lrot(j->code_buffer, n); - j->code_buffer = k & ~stbi__bmask[n]; - k &= stbi__bmask[n]; - j->code_bits -= n; - return k; -} - -stbi_inline static int stbi__jpeg_get_bit(stbi__jpeg *j) -{ - unsigned int k; - if (j->code_bits < 1) stbi__grow_buffer_unsafe(j); - if (j->code_bits < 1) return 0; // ran out of bits from stream, return 0s intead of continuing - k = j->code_buffer; - j->code_buffer <<= 1; - --j->code_bits; - return k & 0x80000000; -} - -// given a value that's at position X in the zigzag stream, -// where does it appear in the 8x8 matrix coded as row-major? -static const stbi_uc stbi__jpeg_dezigzag[64+15] = -{ - 0, 1, 8, 16, 9, 2, 3, 10, - 17, 24, 32, 25, 18, 11, 4, 5, - 12, 19, 26, 33, 40, 48, 41, 34, - 27, 20, 13, 6, 7, 14, 21, 28, - 35, 42, 49, 56, 57, 50, 43, 36, - 29, 22, 15, 23, 30, 37, 44, 51, - 58, 59, 52, 45, 38, 31, 39, 46, - 53, 60, 61, 54, 47, 55, 62, 63, - // let corrupt input sample past end - 63, 63, 63, 63, 63, 63, 63, 63, - 63, 63, 63, 63, 63, 63, 63 -}; - -// decode one 64-entry block-- -static int stbi__jpeg_decode_block(stbi__jpeg *j, short data[64], stbi__huffman *hdc, stbi__huffman *hac, stbi__int16 *fac, int b, stbi__uint16 *dequant) -{ - int diff,dc,k; - int t; - - if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); - t = stbi__jpeg_huff_decode(j, hdc); - if (t < 0 || t > 15) return stbi__err("bad huffman code","Corrupt JPEG"); - - // 0 all the ac values now so we can do it 32-bits at a time - memset(data,0,64*sizeof(data[0])); - - diff = t ? stbi__extend_receive(j, t) : 0; - if (!stbi__addints_valid(j->img_comp[b].dc_pred, diff)) return stbi__err("bad delta","Corrupt JPEG"); - dc = j->img_comp[b].dc_pred + diff; - j->img_comp[b].dc_pred = dc; - if (!stbi__mul2shorts_valid(dc, dequant[0])) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); - data[0] = (short) (dc * dequant[0]); - - // decode AC components, see JPEG spec - k = 1; - do { - unsigned int zig; - int c,r,s; - if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); - c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); - r = fac[c]; - if (r) { // fast-AC path - k += (r >> 4) & 15; // run - s = r & 15; // combined length - if (s > j->code_bits) return stbi__err("bad huffman code", "Combined length longer than code bits available"); - j->code_buffer <<= s; - j->code_bits -= s; - // decode into unzigzag'd location - zig = stbi__jpeg_dezigzag[k++]; - data[zig] = (short) ((r >> 8) * dequant[zig]); - } else { - int rs = stbi__jpeg_huff_decode(j, hac); - if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); - s = rs & 15; - r = rs >> 4; - if (s == 0) { - if (rs != 0xf0) break; // end block - k += 16; - } else { - k += r; - // decode into unzigzag'd location - zig = stbi__jpeg_dezigzag[k++]; - data[zig] = (short) (stbi__extend_receive(j,s) * dequant[zig]); - } - } - } while (k < 64); - return 1; -} - -static int stbi__jpeg_decode_block_prog_dc(stbi__jpeg *j, short data[64], stbi__huffman *hdc, int b) -{ - int diff,dc; - int t; - if (j->spec_end != 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); - - if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); - - if (j->succ_high == 0) { - // first scan for DC coefficient, must be first - memset(data,0,64*sizeof(data[0])); // 0 all the ac values now - t = stbi__jpeg_huff_decode(j, hdc); - if (t < 0 || t > 15) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); - diff = t ? stbi__extend_receive(j, t) : 0; - - if (!stbi__addints_valid(j->img_comp[b].dc_pred, diff)) return stbi__err("bad delta", "Corrupt JPEG"); - dc = j->img_comp[b].dc_pred + diff; - j->img_comp[b].dc_pred = dc; - if (!stbi__mul2shorts_valid(dc, 1 << j->succ_low)) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); - data[0] = (short) (dc * (1 << j->succ_low)); - } else { - // refinement scan for DC coefficient - if (stbi__jpeg_get_bit(j)) - data[0] += (short) (1 << j->succ_low); - } - return 1; -} - -// @OPTIMIZE: store non-zigzagged during the decode passes, -// and only de-zigzag when dequantizing -static int stbi__jpeg_decode_block_prog_ac(stbi__jpeg *j, short data[64], stbi__huffman *hac, stbi__int16 *fac) -{ - int k; - if (j->spec_start == 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); - - if (j->succ_high == 0) { - int shift = j->succ_low; - - if (j->eob_run) { - --j->eob_run; - return 1; - } - - k = j->spec_start; - do { - unsigned int zig; - int c,r,s; - if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); - c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); - r = fac[c]; - if (r) { // fast-AC path - k += (r >> 4) & 15; // run - s = r & 15; // combined length - if (s > j->code_bits) return stbi__err("bad huffman code", "Combined length longer than code bits available"); - j->code_buffer <<= s; - j->code_bits -= s; - zig = stbi__jpeg_dezigzag[k++]; - data[zig] = (short) ((r >> 8) * (1 << shift)); - } else { - int rs = stbi__jpeg_huff_decode(j, hac); - if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); - s = rs & 15; - r = rs >> 4; - if (s == 0) { - if (r < 15) { - j->eob_run = (1 << r); - if (r) - j->eob_run += stbi__jpeg_get_bits(j, r); - --j->eob_run; - break; - } - k += 16; - } else { - k += r; - zig = stbi__jpeg_dezigzag[k++]; - data[zig] = (short) (stbi__extend_receive(j,s) * (1 << shift)); - } - } - } while (k <= j->spec_end); - } else { - // refinement scan for these AC coefficients - - short bit = (short) (1 << j->succ_low); - - if (j->eob_run) { - --j->eob_run; - for (k = j->spec_start; k <= j->spec_end; ++k) { - short *p = &data[stbi__jpeg_dezigzag[k]]; - if (*p != 0) - if (stbi__jpeg_get_bit(j)) - if ((*p & bit)==0) { - if (*p > 0) - *p += bit; - else - *p -= bit; - } - } - } else { - k = j->spec_start; - do { - int r,s; - int rs = stbi__jpeg_huff_decode(j, hac); // @OPTIMIZE see if we can use the fast path here, advance-by-r is so slow, eh - if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); - s = rs & 15; - r = rs >> 4; - if (s == 0) { - if (r < 15) { - j->eob_run = (1 << r) - 1; - if (r) - j->eob_run += stbi__jpeg_get_bits(j, r); - r = 64; // force end of block - } else { - // r=15 s=0 should write 16 0s, so we just do - // a run of 15 0s and then write s (which is 0), - // so we don't have to do anything special here - } - } else { - if (s != 1) return stbi__err("bad huffman code", "Corrupt JPEG"); - // sign bit - if (stbi__jpeg_get_bit(j)) - s = bit; - else - s = -bit; - } - - // advance by r - while (k <= j->spec_end) { - short *p = &data[stbi__jpeg_dezigzag[k++]]; - if (*p != 0) { - if (stbi__jpeg_get_bit(j)) - if ((*p & bit)==0) { - if (*p > 0) - *p += bit; - else - *p -= bit; - } - } else { - if (r == 0) { - *p = (short) s; - break; - } - --r; - } - } - } while (k <= j->spec_end); - } - } - return 1; -} - -// take a -128..127 value and stbi__clamp it and convert to 0..255 -stbi_inline static stbi_uc stbi__clamp(int x) -{ - // trick to use a single test to catch both cases - if ((unsigned int) x > 255) { - if (x < 0) return 0; - if (x > 255) return 255; - } - return (stbi_uc) x; -} - -#define stbi__f2f(x) ((int) (((x) * 4096 + 0.5))) -#define stbi__fsh(x) ((x) * 4096) - -// derived from jidctint -- DCT_ISLOW -#define STBI__IDCT_1D(s0,s1,s2,s3,s4,s5,s6,s7) \ - int t0,t1,t2,t3,p1,p2,p3,p4,p5,x0,x1,x2,x3; \ - p2 = s2; \ - p3 = s6; \ - p1 = (p2+p3) * stbi__f2f(0.5411961f); \ - t2 = p1 + p3*stbi__f2f(-1.847759065f); \ - t3 = p1 + p2*stbi__f2f( 0.765366865f); \ - p2 = s0; \ - p3 = s4; \ - t0 = stbi__fsh(p2+p3); \ - t1 = stbi__fsh(p2-p3); \ - x0 = t0+t3; \ - x3 = t0-t3; \ - x1 = t1+t2; \ - x2 = t1-t2; \ - t0 = s7; \ - t1 = s5; \ - t2 = s3; \ - t3 = s1; \ - p3 = t0+t2; \ - p4 = t1+t3; \ - p1 = t0+t3; \ - p2 = t1+t2; \ - p5 = (p3+p4)*stbi__f2f( 1.175875602f); \ - t0 = t0*stbi__f2f( 0.298631336f); \ - t1 = t1*stbi__f2f( 2.053119869f); \ - t2 = t2*stbi__f2f( 3.072711026f); \ - t3 = t3*stbi__f2f( 1.501321110f); \ - p1 = p5 + p1*stbi__f2f(-0.899976223f); \ - p2 = p5 + p2*stbi__f2f(-2.562915447f); \ - p3 = p3*stbi__f2f(-1.961570560f); \ - p4 = p4*stbi__f2f(-0.390180644f); \ - t3 += p1+p4; \ - t2 += p2+p3; \ - t1 += p2+p4; \ - t0 += p1+p3; - -static void stbi__idct_block(stbi_uc *out, int out_stride, short data[64]) -{ - int i,val[64],*v=val; - stbi_uc *o; - short *d = data; - - // columns - for (i=0; i < 8; ++i,++d, ++v) { - // if all zeroes, shortcut -- this avoids dequantizing 0s and IDCTing - if (d[ 8]==0 && d[16]==0 && d[24]==0 && d[32]==0 - && d[40]==0 && d[48]==0 && d[56]==0) { - // no shortcut 0 seconds - // (1|2|3|4|5|6|7)==0 0 seconds - // all separate -0.047 seconds - // 1 && 2|3 && 4|5 && 6|7: -0.047 seconds - int dcterm = d[0]*4; - v[0] = v[8] = v[16] = v[24] = v[32] = v[40] = v[48] = v[56] = dcterm; - } else { - STBI__IDCT_1D(d[ 0],d[ 8],d[16],d[24],d[32],d[40],d[48],d[56]) - // constants scaled things up by 1<<12; let's bring them back - // down, but keep 2 extra bits of precision - x0 += 512; x1 += 512; x2 += 512; x3 += 512; - v[ 0] = (x0+t3) >> 10; - v[56] = (x0-t3) >> 10; - v[ 8] = (x1+t2) >> 10; - v[48] = (x1-t2) >> 10; - v[16] = (x2+t1) >> 10; - v[40] = (x2-t1) >> 10; - v[24] = (x3+t0) >> 10; - v[32] = (x3-t0) >> 10; - } - } - - for (i=0, v=val, o=out; i < 8; ++i,v+=8,o+=out_stride) { - // no fast case since the first 1D IDCT spread components out - STBI__IDCT_1D(v[0],v[1],v[2],v[3],v[4],v[5],v[6],v[7]) - // constants scaled things up by 1<<12, plus we had 1<<2 from first - // loop, plus horizontal and vertical each scale by sqrt(8) so together - // we've got an extra 1<<3, so 1<<17 total we need to remove. - // so we want to round that, which means adding 0.5 * 1<<17, - // aka 65536. Also, we'll end up with -128 to 127 that we want - // to encode as 0..255 by adding 128, so we'll add that before the shift - x0 += 65536 + (128<<17); - x1 += 65536 + (128<<17); - x2 += 65536 + (128<<17); - x3 += 65536 + (128<<17); - // tried computing the shifts into temps, or'ing the temps to see - // if any were out of range, but that was slower - o[0] = stbi__clamp((x0+t3) >> 17); - o[7] = stbi__clamp((x0-t3) >> 17); - o[1] = stbi__clamp((x1+t2) >> 17); - o[6] = stbi__clamp((x1-t2) >> 17); - o[2] = stbi__clamp((x2+t1) >> 17); - o[5] = stbi__clamp((x2-t1) >> 17); - o[3] = stbi__clamp((x3+t0) >> 17); - o[4] = stbi__clamp((x3-t0) >> 17); - } -} - -#ifdef STBI_SSE2 -// sse2 integer IDCT. not the fastest possible implementation but it -// produces bit-identical results to the generic C version so it's -// fully "transparent". -static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64]) -{ - // This is constructed to match our regular (generic) integer IDCT exactly. - __m128i row0, row1, row2, row3, row4, row5, row6, row7; - __m128i tmp; - - // dot product constant: even elems=x, odd elems=y - #define dct_const(x,y) _mm_setr_epi16((x),(y),(x),(y),(x),(y),(x),(y)) - - // out(0) = c0[even]*x + c0[odd]*y (c0, x, y 16-bit, out 32-bit) - // out(1) = c1[even]*x + c1[odd]*y - #define dct_rot(out0,out1, x,y,c0,c1) \ - __m128i c0##lo = _mm_unpacklo_epi16((x),(y)); \ - __m128i c0##hi = _mm_unpackhi_epi16((x),(y)); \ - __m128i out0##_l = _mm_madd_epi16(c0##lo, c0); \ - __m128i out0##_h = _mm_madd_epi16(c0##hi, c0); \ - __m128i out1##_l = _mm_madd_epi16(c0##lo, c1); \ - __m128i out1##_h = _mm_madd_epi16(c0##hi, c1) - - // out = in << 12 (in 16-bit, out 32-bit) - #define dct_widen(out, in) \ - __m128i out##_l = _mm_srai_epi32(_mm_unpacklo_epi16(_mm_setzero_si128(), (in)), 4); \ - __m128i out##_h = _mm_srai_epi32(_mm_unpackhi_epi16(_mm_setzero_si128(), (in)), 4) - - // wide add - #define dct_wadd(out, a, b) \ - __m128i out##_l = _mm_add_epi32(a##_l, b##_l); \ - __m128i out##_h = _mm_add_epi32(a##_h, b##_h) - - // wide sub - #define dct_wsub(out, a, b) \ - __m128i out##_l = _mm_sub_epi32(a##_l, b##_l); \ - __m128i out##_h = _mm_sub_epi32(a##_h, b##_h) - - // butterfly a/b, add bias, then shift by "s" and pack - #define dct_bfly32o(out0, out1, a,b,bias,s) \ - { \ - __m128i abiased_l = _mm_add_epi32(a##_l, bias); \ - __m128i abiased_h = _mm_add_epi32(a##_h, bias); \ - dct_wadd(sum, abiased, b); \ - dct_wsub(dif, abiased, b); \ - out0 = _mm_packs_epi32(_mm_srai_epi32(sum_l, s), _mm_srai_epi32(sum_h, s)); \ - out1 = _mm_packs_epi32(_mm_srai_epi32(dif_l, s), _mm_srai_epi32(dif_h, s)); \ - } - - // 8-bit interleave step (for transposes) - #define dct_interleave8(a, b) \ - tmp = a; \ - a = _mm_unpacklo_epi8(a, b); \ - b = _mm_unpackhi_epi8(tmp, b) - - // 16-bit interleave step (for transposes) - #define dct_interleave16(a, b) \ - tmp = a; \ - a = _mm_unpacklo_epi16(a, b); \ - b = _mm_unpackhi_epi16(tmp, b) - - #define dct_pass(bias,shift) \ - { \ - /* even part */ \ - dct_rot(t2e,t3e, row2,row6, rot0_0,rot0_1); \ - __m128i sum04 = _mm_add_epi16(row0, row4); \ - __m128i dif04 = _mm_sub_epi16(row0, row4); \ - dct_widen(t0e, sum04); \ - dct_widen(t1e, dif04); \ - dct_wadd(x0, t0e, t3e); \ - dct_wsub(x3, t0e, t3e); \ - dct_wadd(x1, t1e, t2e); \ - dct_wsub(x2, t1e, t2e); \ - /* odd part */ \ - dct_rot(y0o,y2o, row7,row3, rot2_0,rot2_1); \ - dct_rot(y1o,y3o, row5,row1, rot3_0,rot3_1); \ - __m128i sum17 = _mm_add_epi16(row1, row7); \ - __m128i sum35 = _mm_add_epi16(row3, row5); \ - dct_rot(y4o,y5o, sum17,sum35, rot1_0,rot1_1); \ - dct_wadd(x4, y0o, y4o); \ - dct_wadd(x5, y1o, y5o); \ - dct_wadd(x6, y2o, y5o); \ - dct_wadd(x7, y3o, y4o); \ - dct_bfly32o(row0,row7, x0,x7,bias,shift); \ - dct_bfly32o(row1,row6, x1,x6,bias,shift); \ - dct_bfly32o(row2,row5, x2,x5,bias,shift); \ - dct_bfly32o(row3,row4, x3,x4,bias,shift); \ - } - - __m128i rot0_0 = dct_const(stbi__f2f(0.5411961f), stbi__f2f(0.5411961f) + stbi__f2f(-1.847759065f)); - __m128i rot0_1 = dct_const(stbi__f2f(0.5411961f) + stbi__f2f( 0.765366865f), stbi__f2f(0.5411961f)); - __m128i rot1_0 = dct_const(stbi__f2f(1.175875602f) + stbi__f2f(-0.899976223f), stbi__f2f(1.175875602f)); - __m128i rot1_1 = dct_const(stbi__f2f(1.175875602f), stbi__f2f(1.175875602f) + stbi__f2f(-2.562915447f)); - __m128i rot2_0 = dct_const(stbi__f2f(-1.961570560f) + stbi__f2f( 0.298631336f), stbi__f2f(-1.961570560f)); - __m128i rot2_1 = dct_const(stbi__f2f(-1.961570560f), stbi__f2f(-1.961570560f) + stbi__f2f( 3.072711026f)); - __m128i rot3_0 = dct_const(stbi__f2f(-0.390180644f) + stbi__f2f( 2.053119869f), stbi__f2f(-0.390180644f)); - __m128i rot3_1 = dct_const(stbi__f2f(-0.390180644f), stbi__f2f(-0.390180644f) + stbi__f2f( 1.501321110f)); - - // rounding biases in column/row passes, see stbi__idct_block for explanation. - __m128i bias_0 = _mm_set1_epi32(512); - __m128i bias_1 = _mm_set1_epi32(65536 + (128<<17)); - - // load - row0 = _mm_load_si128((const __m128i *) (data + 0*8)); - row1 = _mm_load_si128((const __m128i *) (data + 1*8)); - row2 = _mm_load_si128((const __m128i *) (data + 2*8)); - row3 = _mm_load_si128((const __m128i *) (data + 3*8)); - row4 = _mm_load_si128((const __m128i *) (data + 4*8)); - row5 = _mm_load_si128((const __m128i *) (data + 5*8)); - row6 = _mm_load_si128((const __m128i *) (data + 6*8)); - row7 = _mm_load_si128((const __m128i *) (data + 7*8)); - - // column pass - dct_pass(bias_0, 10); - - { - // 16bit 8x8 transpose pass 1 - dct_interleave16(row0, row4); - dct_interleave16(row1, row5); - dct_interleave16(row2, row6); - dct_interleave16(row3, row7); - - // transpose pass 2 - dct_interleave16(row0, row2); - dct_interleave16(row1, row3); - dct_interleave16(row4, row6); - dct_interleave16(row5, row7); - - // transpose pass 3 - dct_interleave16(row0, row1); - dct_interleave16(row2, row3); - dct_interleave16(row4, row5); - dct_interleave16(row6, row7); - } - - // row pass - dct_pass(bias_1, 17); - - { - // pack - __m128i p0 = _mm_packus_epi16(row0, row1); // a0a1a2a3...a7b0b1b2b3...b7 - __m128i p1 = _mm_packus_epi16(row2, row3); - __m128i p2 = _mm_packus_epi16(row4, row5); - __m128i p3 = _mm_packus_epi16(row6, row7); - - // 8bit 8x8 transpose pass 1 - dct_interleave8(p0, p2); // a0e0a1e1... - dct_interleave8(p1, p3); // c0g0c1g1... - - // transpose pass 2 - dct_interleave8(p0, p1); // a0c0e0g0... - dct_interleave8(p2, p3); // b0d0f0h0... - - // transpose pass 3 - dct_interleave8(p0, p2); // a0b0c0d0... - dct_interleave8(p1, p3); // a4b4c4d4... - - // store - _mm_storel_epi64((__m128i *) out, p0); out += out_stride; - _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p0, 0x4e)); out += out_stride; - _mm_storel_epi64((__m128i *) out, p2); out += out_stride; - _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p2, 0x4e)); out += out_stride; - _mm_storel_epi64((__m128i *) out, p1); out += out_stride; - _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p1, 0x4e)); out += out_stride; - _mm_storel_epi64((__m128i *) out, p3); out += out_stride; - _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p3, 0x4e)); - } - -#undef dct_const -#undef dct_rot -#undef dct_widen -#undef dct_wadd -#undef dct_wsub -#undef dct_bfly32o -#undef dct_interleave8 -#undef dct_interleave16 -#undef dct_pass -} - -#endif // STBI_SSE2 - -#ifdef STBI_NEON - -// NEON integer IDCT. should produce bit-identical -// results to the generic C version. -static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64]) -{ - int16x8_t row0, row1, row2, row3, row4, row5, row6, row7; - - int16x4_t rot0_0 = vdup_n_s16(stbi__f2f(0.5411961f)); - int16x4_t rot0_1 = vdup_n_s16(stbi__f2f(-1.847759065f)); - int16x4_t rot0_2 = vdup_n_s16(stbi__f2f( 0.765366865f)); - int16x4_t rot1_0 = vdup_n_s16(stbi__f2f( 1.175875602f)); - int16x4_t rot1_1 = vdup_n_s16(stbi__f2f(-0.899976223f)); - int16x4_t rot1_2 = vdup_n_s16(stbi__f2f(-2.562915447f)); - int16x4_t rot2_0 = vdup_n_s16(stbi__f2f(-1.961570560f)); - int16x4_t rot2_1 = vdup_n_s16(stbi__f2f(-0.390180644f)); - int16x4_t rot3_0 = vdup_n_s16(stbi__f2f( 0.298631336f)); - int16x4_t rot3_1 = vdup_n_s16(stbi__f2f( 2.053119869f)); - int16x4_t rot3_2 = vdup_n_s16(stbi__f2f( 3.072711026f)); - int16x4_t rot3_3 = vdup_n_s16(stbi__f2f( 1.501321110f)); - -#define dct_long_mul(out, inq, coeff) \ - int32x4_t out##_l = vmull_s16(vget_low_s16(inq), coeff); \ - int32x4_t out##_h = vmull_s16(vget_high_s16(inq), coeff) - -#define dct_long_mac(out, acc, inq, coeff) \ - int32x4_t out##_l = vmlal_s16(acc##_l, vget_low_s16(inq), coeff); \ - int32x4_t out##_h = vmlal_s16(acc##_h, vget_high_s16(inq), coeff) - -#define dct_widen(out, inq) \ - int32x4_t out##_l = vshll_n_s16(vget_low_s16(inq), 12); \ - int32x4_t out##_h = vshll_n_s16(vget_high_s16(inq), 12) - -// wide add -#define dct_wadd(out, a, b) \ - int32x4_t out##_l = vaddq_s32(a##_l, b##_l); \ - int32x4_t out##_h = vaddq_s32(a##_h, b##_h) - -// wide sub -#define dct_wsub(out, a, b) \ - int32x4_t out##_l = vsubq_s32(a##_l, b##_l); \ - int32x4_t out##_h = vsubq_s32(a##_h, b##_h) - -// butterfly a/b, then shift using "shiftop" by "s" and pack -#define dct_bfly32o(out0,out1, a,b,shiftop,s) \ - { \ - dct_wadd(sum, a, b); \ - dct_wsub(dif, a, b); \ - out0 = vcombine_s16(shiftop(sum_l, s), shiftop(sum_h, s)); \ - out1 = vcombine_s16(shiftop(dif_l, s), shiftop(dif_h, s)); \ - } - -#define dct_pass(shiftop, shift) \ - { \ - /* even part */ \ - int16x8_t sum26 = vaddq_s16(row2, row6); \ - dct_long_mul(p1e, sum26, rot0_0); \ - dct_long_mac(t2e, p1e, row6, rot0_1); \ - dct_long_mac(t3e, p1e, row2, rot0_2); \ - int16x8_t sum04 = vaddq_s16(row0, row4); \ - int16x8_t dif04 = vsubq_s16(row0, row4); \ - dct_widen(t0e, sum04); \ - dct_widen(t1e, dif04); \ - dct_wadd(x0, t0e, t3e); \ - dct_wsub(x3, t0e, t3e); \ - dct_wadd(x1, t1e, t2e); \ - dct_wsub(x2, t1e, t2e); \ - /* odd part */ \ - int16x8_t sum15 = vaddq_s16(row1, row5); \ - int16x8_t sum17 = vaddq_s16(row1, row7); \ - int16x8_t sum35 = vaddq_s16(row3, row5); \ - int16x8_t sum37 = vaddq_s16(row3, row7); \ - int16x8_t sumodd = vaddq_s16(sum17, sum35); \ - dct_long_mul(p5o, sumodd, rot1_0); \ - dct_long_mac(p1o, p5o, sum17, rot1_1); \ - dct_long_mac(p2o, p5o, sum35, rot1_2); \ - dct_long_mul(p3o, sum37, rot2_0); \ - dct_long_mul(p4o, sum15, rot2_1); \ - dct_wadd(sump13o, p1o, p3o); \ - dct_wadd(sump24o, p2o, p4o); \ - dct_wadd(sump23o, p2o, p3o); \ - dct_wadd(sump14o, p1o, p4o); \ - dct_long_mac(x4, sump13o, row7, rot3_0); \ - dct_long_mac(x5, sump24o, row5, rot3_1); \ - dct_long_mac(x6, sump23o, row3, rot3_2); \ - dct_long_mac(x7, sump14o, row1, rot3_3); \ - dct_bfly32o(row0,row7, x0,x7,shiftop,shift); \ - dct_bfly32o(row1,row6, x1,x6,shiftop,shift); \ - dct_bfly32o(row2,row5, x2,x5,shiftop,shift); \ - dct_bfly32o(row3,row4, x3,x4,shiftop,shift); \ - } - - // load - row0 = vld1q_s16(data + 0*8); - row1 = vld1q_s16(data + 1*8); - row2 = vld1q_s16(data + 2*8); - row3 = vld1q_s16(data + 3*8); - row4 = vld1q_s16(data + 4*8); - row5 = vld1q_s16(data + 5*8); - row6 = vld1q_s16(data + 6*8); - row7 = vld1q_s16(data + 7*8); - - // add DC bias - row0 = vaddq_s16(row0, vsetq_lane_s16(1024, vdupq_n_s16(0), 0)); - - // column pass - dct_pass(vrshrn_n_s32, 10); - - // 16bit 8x8 transpose - { -// these three map to a single VTRN.16, VTRN.32, and VSWP, respectively. -// whether compilers actually get this is another story, sadly. -#define dct_trn16(x, y) { int16x8x2_t t = vtrnq_s16(x, y); x = t.val[0]; y = t.val[1]; } -#define dct_trn32(x, y) { int32x4x2_t t = vtrnq_s32(vreinterpretq_s32_s16(x), vreinterpretq_s32_s16(y)); x = vreinterpretq_s16_s32(t.val[0]); y = vreinterpretq_s16_s32(t.val[1]); } -#define dct_trn64(x, y) { int16x8_t x0 = x; int16x8_t y0 = y; x = vcombine_s16(vget_low_s16(x0), vget_low_s16(y0)); y = vcombine_s16(vget_high_s16(x0), vget_high_s16(y0)); } - - // pass 1 - dct_trn16(row0, row1); // a0b0a2b2a4b4a6b6 - dct_trn16(row2, row3); - dct_trn16(row4, row5); - dct_trn16(row6, row7); - - // pass 2 - dct_trn32(row0, row2); // a0b0c0d0a4b4c4d4 - dct_trn32(row1, row3); - dct_trn32(row4, row6); - dct_trn32(row5, row7); - - // pass 3 - dct_trn64(row0, row4); // a0b0c0d0e0f0g0h0 - dct_trn64(row1, row5); - dct_trn64(row2, row6); - dct_trn64(row3, row7); - -#undef dct_trn16 -#undef dct_trn32 -#undef dct_trn64 - } - - // row pass - // vrshrn_n_s32 only supports shifts up to 16, we need - // 17. so do a non-rounding shift of 16 first then follow - // up with a rounding shift by 1. - dct_pass(vshrn_n_s32, 16); - - { - // pack and round - uint8x8_t p0 = vqrshrun_n_s16(row0, 1); - uint8x8_t p1 = vqrshrun_n_s16(row1, 1); - uint8x8_t p2 = vqrshrun_n_s16(row2, 1); - uint8x8_t p3 = vqrshrun_n_s16(row3, 1); - uint8x8_t p4 = vqrshrun_n_s16(row4, 1); - uint8x8_t p5 = vqrshrun_n_s16(row5, 1); - uint8x8_t p6 = vqrshrun_n_s16(row6, 1); - uint8x8_t p7 = vqrshrun_n_s16(row7, 1); - - // again, these can translate into one instruction, but often don't. -#define dct_trn8_8(x, y) { uint8x8x2_t t = vtrn_u8(x, y); x = t.val[0]; y = t.val[1]; } -#define dct_trn8_16(x, y) { uint16x4x2_t t = vtrn_u16(vreinterpret_u16_u8(x), vreinterpret_u16_u8(y)); x = vreinterpret_u8_u16(t.val[0]); y = vreinterpret_u8_u16(t.val[1]); } -#define dct_trn8_32(x, y) { uint32x2x2_t t = vtrn_u32(vreinterpret_u32_u8(x), vreinterpret_u32_u8(y)); x = vreinterpret_u8_u32(t.val[0]); y = vreinterpret_u8_u32(t.val[1]); } - - // sadly can't use interleaved stores here since we only write - // 8 bytes to each scan line! - - // 8x8 8-bit transpose pass 1 - dct_trn8_8(p0, p1); - dct_trn8_8(p2, p3); - dct_trn8_8(p4, p5); - dct_trn8_8(p6, p7); - - // pass 2 - dct_trn8_16(p0, p2); - dct_trn8_16(p1, p3); - dct_trn8_16(p4, p6); - dct_trn8_16(p5, p7); - - // pass 3 - dct_trn8_32(p0, p4); - dct_trn8_32(p1, p5); - dct_trn8_32(p2, p6); - dct_trn8_32(p3, p7); - - // store - vst1_u8(out, p0); out += out_stride; - vst1_u8(out, p1); out += out_stride; - vst1_u8(out, p2); out += out_stride; - vst1_u8(out, p3); out += out_stride; - vst1_u8(out, p4); out += out_stride; - vst1_u8(out, p5); out += out_stride; - vst1_u8(out, p6); out += out_stride; - vst1_u8(out, p7); - -#undef dct_trn8_8 -#undef dct_trn8_16 -#undef dct_trn8_32 - } - -#undef dct_long_mul -#undef dct_long_mac -#undef dct_widen -#undef dct_wadd -#undef dct_wsub -#undef dct_bfly32o -#undef dct_pass -} - -#endif // STBI_NEON - -#define STBI__MARKER_none 0xff -// if there's a pending marker from the entropy stream, return that -// otherwise, fetch from the stream and get a marker. if there's no -// marker, return 0xff, which is never a valid marker value -static stbi_uc stbi__get_marker(stbi__jpeg *j) -{ - stbi_uc x; - if (j->marker != STBI__MARKER_none) { x = j->marker; j->marker = STBI__MARKER_none; return x; } - x = stbi__get8(j->s); - if (x != 0xff) return STBI__MARKER_none; - while (x == 0xff) - x = stbi__get8(j->s); // consume repeated 0xff fill bytes - return x; -} - -// in each scan, we'll have scan_n components, and the order -// of the components is specified by order[] -#define STBI__RESTART(x) ((x) >= 0xd0 && (x) <= 0xd7) - -// after a restart interval, stbi__jpeg_reset the entropy decoder and -// the dc prediction -static void stbi__jpeg_reset(stbi__jpeg *j) -{ - j->code_bits = 0; - j->code_buffer = 0; - j->nomore = 0; - j->img_comp[0].dc_pred = j->img_comp[1].dc_pred = j->img_comp[2].dc_pred = j->img_comp[3].dc_pred = 0; - j->marker = STBI__MARKER_none; - j->todo = j->restart_interval ? j->restart_interval : 0x7fffffff; - j->eob_run = 0; - // no more than 1<<31 MCUs if no restart_interal? that's plenty safe, - // since we don't even allow 1<<30 pixels -} - -static int stbi__parse_entropy_coded_data(stbi__jpeg *z) -{ - stbi__jpeg_reset(z); - if (!z->progressive) { - if (z->scan_n == 1) { - int i,j; - STBI_SIMD_ALIGN(short, data[64]); - int n = z->order[0]; - // non-interleaved data, we just need to process one block at a time, - // in trivial scanline order - // number of blocks to do just depends on how many actual "pixels" this - // component has, independent of interleaved MCU blocking and such - int w = (z->img_comp[n].x+7) >> 3; - int h = (z->img_comp[n].y+7) >> 3; - for (j=0; j < h; ++j) { - for (i=0; i < w; ++i) { - int ha = z->img_comp[n].ha; - if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; - z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data); - // every data block is an MCU, so countdown the restart interval - if (--z->todo <= 0) { - if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); - // if it's NOT a restart, then just bail, so we get corrupt data - // rather than no data - if (!STBI__RESTART(z->marker)) return 1; - stbi__jpeg_reset(z); - } - } - } - return 1; - } else { // interleaved - int i,j,k,x,y; - STBI_SIMD_ALIGN(short, data[64]); - for (j=0; j < z->img_mcu_y; ++j) { - for (i=0; i < z->img_mcu_x; ++i) { - // scan an interleaved mcu... process scan_n components in order - for (k=0; k < z->scan_n; ++k) { - int n = z->order[k]; - // scan out an mcu's worth of this component; that's just determined - // by the basic H and V specified for the component - for (y=0; y < z->img_comp[n].v; ++y) { - for (x=0; x < z->img_comp[n].h; ++x) { - int x2 = (i*z->img_comp[n].h + x)*8; - int y2 = (j*z->img_comp[n].v + y)*8; - int ha = z->img_comp[n].ha; - if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; - z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*y2+x2, z->img_comp[n].w2, data); - } - } - } - // after all interleaved components, that's an interleaved MCU, - // so now count down the restart interval - if (--z->todo <= 0) { - if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); - if (!STBI__RESTART(z->marker)) return 1; - stbi__jpeg_reset(z); - } - } - } - return 1; - } - } else { - if (z->scan_n == 1) { - int i,j; - int n = z->order[0]; - // non-interleaved data, we just need to process one block at a time, - // in trivial scanline order - // number of blocks to do just depends on how many actual "pixels" this - // component has, independent of interleaved MCU blocking and such - int w = (z->img_comp[n].x+7) >> 3; - int h = (z->img_comp[n].y+7) >> 3; - for (j=0; j < h; ++j) { - for (i=0; i < w; ++i) { - short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); - if (z->spec_start == 0) { - if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) - return 0; - } else { - int ha = z->img_comp[n].ha; - if (!stbi__jpeg_decode_block_prog_ac(z, data, &z->huff_ac[ha], z->fast_ac[ha])) - return 0; - } - // every data block is an MCU, so countdown the restart interval - if (--z->todo <= 0) { - if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); - if (!STBI__RESTART(z->marker)) return 1; - stbi__jpeg_reset(z); - } - } - } - return 1; - } else { // interleaved - int i,j,k,x,y; - for (j=0; j < z->img_mcu_y; ++j) { - for (i=0; i < z->img_mcu_x; ++i) { - // scan an interleaved mcu... process scan_n components in order - for (k=0; k < z->scan_n; ++k) { - int n = z->order[k]; - // scan out an mcu's worth of this component; that's just determined - // by the basic H and V specified for the component - for (y=0; y < z->img_comp[n].v; ++y) { - for (x=0; x < z->img_comp[n].h; ++x) { - int x2 = (i*z->img_comp[n].h + x); - int y2 = (j*z->img_comp[n].v + y); - short *data = z->img_comp[n].coeff + 64 * (x2 + y2 * z->img_comp[n].coeff_w); - if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) - return 0; - } - } - } - // after all interleaved components, that's an interleaved MCU, - // so now count down the restart interval - if (--z->todo <= 0) { - if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); - if (!STBI__RESTART(z->marker)) return 1; - stbi__jpeg_reset(z); - } - } - } - return 1; - } - } -} - -static void stbi__jpeg_dequantize(short *data, stbi__uint16 *dequant) -{ - int i; - for (i=0; i < 64; ++i) - data[i] *= dequant[i]; -} - -static void stbi__jpeg_finish(stbi__jpeg *z) -{ - if (z->progressive) { - // dequantize and idct the data - int i,j,n; - for (n=0; n < z->s->img_n; ++n) { - int w = (z->img_comp[n].x+7) >> 3; - int h = (z->img_comp[n].y+7) >> 3; - for (j=0; j < h; ++j) { - for (i=0; i < w; ++i) { - short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); - stbi__jpeg_dequantize(data, z->dequant[z->img_comp[n].tq]); - z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data); - } - } - } - } -} - -static int stbi__process_marker(stbi__jpeg *z, int m) -{ - int L; - switch (m) { - case STBI__MARKER_none: // no marker found - return stbi__err("expected marker","Corrupt JPEG"); - - case 0xDD: // DRI - specify restart interval - if (stbi__get16be(z->s) != 4) return stbi__err("bad DRI len","Corrupt JPEG"); - z->restart_interval = stbi__get16be(z->s); - return 1; - - case 0xDB: // DQT - define quantization table - L = stbi__get16be(z->s)-2; - while (L > 0) { - int q = stbi__get8(z->s); - int p = q >> 4, sixteen = (p != 0); - int t = q & 15,i; - if (p != 0 && p != 1) return stbi__err("bad DQT type","Corrupt JPEG"); - if (t > 3) return stbi__err("bad DQT table","Corrupt JPEG"); - - for (i=0; i < 64; ++i) - z->dequant[t][stbi__jpeg_dezigzag[i]] = (stbi__uint16)(sixteen ? stbi__get16be(z->s) : stbi__get8(z->s)); - L -= (sixteen ? 129 : 65); - } - return L==0; - - case 0xC4: // DHT - define huffman table - L = stbi__get16be(z->s)-2; - while (L > 0) { - stbi_uc *v; - int sizes[16],i,n=0; - int q = stbi__get8(z->s); - int tc = q >> 4; - int th = q & 15; - if (tc > 1 || th > 3) return stbi__err("bad DHT header","Corrupt JPEG"); - for (i=0; i < 16; ++i) { - sizes[i] = stbi__get8(z->s); - n += sizes[i]; - } - if(n > 256) return stbi__err("bad DHT header","Corrupt JPEG"); // Loop over i < n would write past end of values! - L -= 17; - if (tc == 0) { - if (!stbi__build_huffman(z->huff_dc+th, sizes)) return 0; - v = z->huff_dc[th].values; - } else { - if (!stbi__build_huffman(z->huff_ac+th, sizes)) return 0; - v = z->huff_ac[th].values; - } - for (i=0; i < n; ++i) - v[i] = stbi__get8(z->s); - if (tc != 0) - stbi__build_fast_ac(z->fast_ac[th], z->huff_ac + th); - L -= n; - } - return L==0; - } - - // check for comment block or APP blocks - if ((m >= 0xE0 && m <= 0xEF) || m == 0xFE) { - L = stbi__get16be(z->s); - if (L < 2) { - if (m == 0xFE) - return stbi__err("bad COM len","Corrupt JPEG"); - else - return stbi__err("bad APP len","Corrupt JPEG"); - } - L -= 2; - - if (m == 0xE0 && L >= 5) { // JFIF APP0 segment - static const unsigned char tag[5] = {'J','F','I','F','\0'}; - int ok = 1; - int i; - for (i=0; i < 5; ++i) - if (stbi__get8(z->s) != tag[i]) - ok = 0; - L -= 5; - if (ok) - z->jfif = 1; - } else if (m == 0xEE && L >= 12) { // Adobe APP14 segment - static const unsigned char tag[6] = {'A','d','o','b','e','\0'}; - int ok = 1; - int i; - for (i=0; i < 6; ++i) - if (stbi__get8(z->s) != tag[i]) - ok = 0; - L -= 6; - if (ok) { - stbi__get8(z->s); // version - stbi__get16be(z->s); // flags0 - stbi__get16be(z->s); // flags1 - z->app14_color_transform = stbi__get8(z->s); // color transform - L -= 6; - } - } - - stbi__skip(z->s, L); - return 1; - } - - return stbi__err("unknown marker","Corrupt JPEG"); -} - -// after we see SOS -static int stbi__process_scan_header(stbi__jpeg *z) -{ - int i; - int Ls = stbi__get16be(z->s); - z->scan_n = stbi__get8(z->s); - if (z->scan_n < 1 || z->scan_n > 4 || z->scan_n > (int) z->s->img_n) return stbi__err("bad SOS component count","Corrupt JPEG"); - if (Ls != 6+2*z->scan_n) return stbi__err("bad SOS len","Corrupt JPEG"); - for (i=0; i < z->scan_n; ++i) { - int id = stbi__get8(z->s), which; - int q = stbi__get8(z->s); - for (which = 0; which < z->s->img_n; ++which) - if (z->img_comp[which].id == id) - break; - if (which == z->s->img_n) return 0; // no match - z->img_comp[which].hd = q >> 4; if (z->img_comp[which].hd > 3) return stbi__err("bad DC huff","Corrupt JPEG"); - z->img_comp[which].ha = q & 15; if (z->img_comp[which].ha > 3) return stbi__err("bad AC huff","Corrupt JPEG"); - z->order[i] = which; - } - - { - int aa; - z->spec_start = stbi__get8(z->s); - z->spec_end = stbi__get8(z->s); // should be 63, but might be 0 - aa = stbi__get8(z->s); - z->succ_high = (aa >> 4); - z->succ_low = (aa & 15); - if (z->progressive) { - if (z->spec_start > 63 || z->spec_end > 63 || z->spec_start > z->spec_end || z->succ_high > 13 || z->succ_low > 13) - return stbi__err("bad SOS", "Corrupt JPEG"); - } else { - if (z->spec_start != 0) return stbi__err("bad SOS","Corrupt JPEG"); - if (z->succ_high != 0 || z->succ_low != 0) return stbi__err("bad SOS","Corrupt JPEG"); - z->spec_end = 63; - } - } - - return 1; -} - -static int stbi__free_jpeg_components(stbi__jpeg *z, int ncomp, int why) -{ - int i; - for (i=0; i < ncomp; ++i) { - if (z->img_comp[i].raw_data) { - STBI_FREE(z->img_comp[i].raw_data); - z->img_comp[i].raw_data = NULL; - z->img_comp[i].data = NULL; - } - if (z->img_comp[i].raw_coeff) { - STBI_FREE(z->img_comp[i].raw_coeff); - z->img_comp[i].raw_coeff = 0; - z->img_comp[i].coeff = 0; - } - if (z->img_comp[i].linebuf) { - STBI_FREE(z->img_comp[i].linebuf); - z->img_comp[i].linebuf = NULL; - } - } - return why; -} - -static int stbi__process_frame_header(stbi__jpeg *z, int scan) -{ - stbi__context *s = z->s; - int Lf,p,i,q, h_max=1,v_max=1,c; - Lf = stbi__get16be(s); if (Lf < 11) return stbi__err("bad SOF len","Corrupt JPEG"); // JPEG - p = stbi__get8(s); if (p != 8) return stbi__err("only 8-bit","JPEG format not supported: 8-bit only"); // JPEG baseline - s->img_y = stbi__get16be(s); if (s->img_y == 0) return stbi__err("no header height", "JPEG format not supported: delayed height"); // Legal, but we don't handle it--but neither does IJG - s->img_x = stbi__get16be(s); if (s->img_x == 0) return stbi__err("0 width","Corrupt JPEG"); // JPEG requires - if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); - if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); - c = stbi__get8(s); - if (c != 3 && c != 1 && c != 4) return stbi__err("bad component count","Corrupt JPEG"); - s->img_n = c; - for (i=0; i < c; ++i) { - z->img_comp[i].data = NULL; - z->img_comp[i].linebuf = NULL; - } - - if (Lf != 8+3*s->img_n) return stbi__err("bad SOF len","Corrupt JPEG"); - - z->rgb = 0; - for (i=0; i < s->img_n; ++i) { - static const unsigned char rgb[3] = { 'R', 'G', 'B' }; - z->img_comp[i].id = stbi__get8(s); - if (s->img_n == 3 && z->img_comp[i].id == rgb[i]) - ++z->rgb; - q = stbi__get8(s); - z->img_comp[i].h = (q >> 4); if (!z->img_comp[i].h || z->img_comp[i].h > 4) return stbi__err("bad H","Corrupt JPEG"); - z->img_comp[i].v = q & 15; if (!z->img_comp[i].v || z->img_comp[i].v > 4) return stbi__err("bad V","Corrupt JPEG"); - z->img_comp[i].tq = stbi__get8(s); if (z->img_comp[i].tq > 3) return stbi__err("bad TQ","Corrupt JPEG"); - } - - if (scan != STBI__SCAN_load) return 1; - - if (!stbi__mad3sizes_valid(s->img_x, s->img_y, s->img_n, 0)) return stbi__err("too large", "Image too large to decode"); - - for (i=0; i < s->img_n; ++i) { - if (z->img_comp[i].h > h_max) h_max = z->img_comp[i].h; - if (z->img_comp[i].v > v_max) v_max = z->img_comp[i].v; - } - - // check that plane subsampling factors are integer ratios; our resamplers can't deal with fractional ratios - // and I've never seen a non-corrupted JPEG file actually use them - for (i=0; i < s->img_n; ++i) { - if (h_max % z->img_comp[i].h != 0) return stbi__err("bad H","Corrupt JPEG"); - if (v_max % z->img_comp[i].v != 0) return stbi__err("bad V","Corrupt JPEG"); - } - - // compute interleaved mcu info - z->img_h_max = h_max; - z->img_v_max = v_max; - z->img_mcu_w = h_max * 8; - z->img_mcu_h = v_max * 8; - // these sizes can't be more than 17 bits - z->img_mcu_x = (s->img_x + z->img_mcu_w-1) / z->img_mcu_w; - z->img_mcu_y = (s->img_y + z->img_mcu_h-1) / z->img_mcu_h; - - for (i=0; i < s->img_n; ++i) { - // number of effective pixels (e.g. for non-interleaved MCU) - z->img_comp[i].x = (s->img_x * z->img_comp[i].h + h_max-1) / h_max; - z->img_comp[i].y = (s->img_y * z->img_comp[i].v + v_max-1) / v_max; - // to simplify generation, we'll allocate enough memory to decode - // the bogus oversized data from using interleaved MCUs and their - // big blocks (e.g. a 16x16 iMCU on an image of width 33); we won't - // discard the extra data until colorspace conversion - // - // img_mcu_x, img_mcu_y: <=17 bits; comp[i].h and .v are <=4 (checked earlier) - // so these muls can't overflow with 32-bit ints (which we require) - z->img_comp[i].w2 = z->img_mcu_x * z->img_comp[i].h * 8; - z->img_comp[i].h2 = z->img_mcu_y * z->img_comp[i].v * 8; - z->img_comp[i].coeff = 0; - z->img_comp[i].raw_coeff = 0; - z->img_comp[i].linebuf = NULL; - z->img_comp[i].raw_data = stbi__malloc_mad2(z->img_comp[i].w2, z->img_comp[i].h2, 15); - if (z->img_comp[i].raw_data == NULL) - return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory")); - // align blocks for idct using mmx/sse - z->img_comp[i].data = (stbi_uc*) (((size_t) z->img_comp[i].raw_data + 15) & ~15); - if (z->progressive) { - // w2, h2 are multiples of 8 (see above) - z->img_comp[i].coeff_w = z->img_comp[i].w2 / 8; - z->img_comp[i].coeff_h = z->img_comp[i].h2 / 8; - z->img_comp[i].raw_coeff = stbi__malloc_mad3(z->img_comp[i].w2, z->img_comp[i].h2, sizeof(short), 15); - if (z->img_comp[i].raw_coeff == NULL) - return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory")); - z->img_comp[i].coeff = (short*) (((size_t) z->img_comp[i].raw_coeff + 15) & ~15); - } - } - - return 1; -} - -// use comparisons since in some cases we handle more than one case (e.g. SOF) -#define stbi__DNL(x) ((x) == 0xdc) -#define stbi__SOI(x) ((x) == 0xd8) -#define stbi__EOI(x) ((x) == 0xd9) -#define stbi__SOF(x) ((x) == 0xc0 || (x) == 0xc1 || (x) == 0xc2) -#define stbi__SOS(x) ((x) == 0xda) - -#define stbi__SOF_progressive(x) ((x) == 0xc2) - -static int stbi__decode_jpeg_header(stbi__jpeg *z, int scan) -{ - int m; - z->jfif = 0; - z->app14_color_transform = -1; // valid values are 0,1,2 - z->marker = STBI__MARKER_none; // initialize cached marker to empty - m = stbi__get_marker(z); - if (!stbi__SOI(m)) return stbi__err("no SOI","Corrupt JPEG"); - if (scan == STBI__SCAN_type) return 1; - m = stbi__get_marker(z); - while (!stbi__SOF(m)) { - if (!stbi__process_marker(z,m)) return 0; - m = stbi__get_marker(z); - while (m == STBI__MARKER_none) { - // some files have extra padding after their blocks, so ok, we'll scan - if (stbi__at_eof(z->s)) return stbi__err("no SOF", "Corrupt JPEG"); - m = stbi__get_marker(z); - } - } - z->progressive = stbi__SOF_progressive(m); - if (!stbi__process_frame_header(z, scan)) return 0; - return 1; -} - -static stbi_uc stbi__skip_jpeg_junk_at_end(stbi__jpeg *j) -{ - // some JPEGs have junk at end, skip over it but if we find what looks - // like a valid marker, resume there - while (!stbi__at_eof(j->s)) { - stbi_uc x = stbi__get8(j->s); - while (x == 0xff) { // might be a marker - if (stbi__at_eof(j->s)) return STBI__MARKER_none; - x = stbi__get8(j->s); - if (x != 0x00 && x != 0xff) { - // not a stuffed zero or lead-in to another marker, looks - // like an actual marker, return it - return x; - } - // stuffed zero has x=0 now which ends the loop, meaning we go - // back to regular scan loop. - // repeated 0xff keeps trying to read the next byte of the marker. - } - } - return STBI__MARKER_none; -} - -// decode image to YCbCr format -static int stbi__decode_jpeg_image(stbi__jpeg *j) -{ - int m; - for (m = 0; m < 4; m++) { - j->img_comp[m].raw_data = NULL; - j->img_comp[m].raw_coeff = NULL; - } - j->restart_interval = 0; - if (!stbi__decode_jpeg_header(j, STBI__SCAN_load)) return 0; - m = stbi__get_marker(j); - while (!stbi__EOI(m)) { - if (stbi__SOS(m)) { - if (!stbi__process_scan_header(j)) return 0; - if (!stbi__parse_entropy_coded_data(j)) return 0; - if (j->marker == STBI__MARKER_none ) { - j->marker = stbi__skip_jpeg_junk_at_end(j); - // if we reach eof without hitting a marker, stbi__get_marker() below will fail and we'll eventually return 0 - } - m = stbi__get_marker(j); - if (STBI__RESTART(m)) - m = stbi__get_marker(j); - } else if (stbi__DNL(m)) { - int Ld = stbi__get16be(j->s); - stbi__uint32 NL = stbi__get16be(j->s); - if (Ld != 4) return stbi__err("bad DNL len", "Corrupt JPEG"); - if (NL != j->s->img_y) return stbi__err("bad DNL height", "Corrupt JPEG"); - m = stbi__get_marker(j); - } else { - if (!stbi__process_marker(j, m)) return 1; - m = stbi__get_marker(j); - } - } - if (j->progressive) - stbi__jpeg_finish(j); - return 1; -} - -// static jfif-centered resampling (across block boundaries) - -typedef stbi_uc *(*resample_row_func)(stbi_uc *out, stbi_uc *in0, stbi_uc *in1, - int w, int hs); - -#define stbi__div4(x) ((stbi_uc) ((x) >> 2)) - -static stbi_uc *resample_row_1(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) -{ - STBI_NOTUSED(out); - STBI_NOTUSED(in_far); - STBI_NOTUSED(w); - STBI_NOTUSED(hs); - return in_near; -} - -static stbi_uc* stbi__resample_row_v_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) -{ - // need to generate two samples vertically for every one in input - int i; - STBI_NOTUSED(hs); - for (i=0; i < w; ++i) - out[i] = stbi__div4(3*in_near[i] + in_far[i] + 2); - return out; -} - -static stbi_uc* stbi__resample_row_h_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) -{ - // need to generate two samples horizontally for every one in input - int i; - stbi_uc *input = in_near; - - if (w == 1) { - // if only one sample, can't do any interpolation - out[0] = out[1] = input[0]; - return out; - } - - out[0] = input[0]; - out[1] = stbi__div4(input[0]*3 + input[1] + 2); - for (i=1; i < w-1; ++i) { - int n = 3*input[i]+2; - out[i*2+0] = stbi__div4(n+input[i-1]); - out[i*2+1] = stbi__div4(n+input[i+1]); - } - out[i*2+0] = stbi__div4(input[w-2]*3 + input[w-1] + 2); - out[i*2+1] = input[w-1]; - - STBI_NOTUSED(in_far); - STBI_NOTUSED(hs); - - return out; -} - -#define stbi__div16(x) ((stbi_uc) ((x) >> 4)) - -static stbi_uc *stbi__resample_row_hv_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) -{ - // need to generate 2x2 samples for every one in input - int i,t0,t1; - if (w == 1) { - out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2); - return out; - } - - t1 = 3*in_near[0] + in_far[0]; - out[0] = stbi__div4(t1+2); - for (i=1; i < w; ++i) { - t0 = t1; - t1 = 3*in_near[i]+in_far[i]; - out[i*2-1] = stbi__div16(3*t0 + t1 + 8); - out[i*2 ] = stbi__div16(3*t1 + t0 + 8); - } - out[w*2-1] = stbi__div4(t1+2); - - STBI_NOTUSED(hs); - - return out; -} - -#if defined(STBI_SSE2) || defined(STBI_NEON) -static stbi_uc *stbi__resample_row_hv_2_simd(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) -{ - // need to generate 2x2 samples for every one in input - int i=0,t0,t1; - - if (w == 1) { - out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2); - return out; - } - - t1 = 3*in_near[0] + in_far[0]; - // process groups of 8 pixels for as long as we can. - // note we can't handle the last pixel in a row in this loop - // because we need to handle the filter boundary conditions. - for (; i < ((w-1) & ~7); i += 8) { -#if defined(STBI_SSE2) - // load and perform the vertical filtering pass - // this uses 3*x + y = 4*x + (y - x) - __m128i zero = _mm_setzero_si128(); - __m128i farb = _mm_loadl_epi64((__m128i *) (in_far + i)); - __m128i nearb = _mm_loadl_epi64((__m128i *) (in_near + i)); - __m128i farw = _mm_unpacklo_epi8(farb, zero); - __m128i nearw = _mm_unpacklo_epi8(nearb, zero); - __m128i diff = _mm_sub_epi16(farw, nearw); - __m128i nears = _mm_slli_epi16(nearw, 2); - __m128i curr = _mm_add_epi16(nears, diff); // current row - - // horizontal filter works the same based on shifted vers of current - // row. "prev" is current row shifted right by 1 pixel; we need to - // insert the previous pixel value (from t1). - // "next" is current row shifted left by 1 pixel, with first pixel - // of next block of 8 pixels added in. - __m128i prv0 = _mm_slli_si128(curr, 2); - __m128i nxt0 = _mm_srli_si128(curr, 2); - __m128i prev = _mm_insert_epi16(prv0, t1, 0); - __m128i next = _mm_insert_epi16(nxt0, 3*in_near[i+8] + in_far[i+8], 7); - - // horizontal filter, polyphase implementation since it's convenient: - // even pixels = 3*cur + prev = cur*4 + (prev - cur) - // odd pixels = 3*cur + next = cur*4 + (next - cur) - // note the shared term. - __m128i bias = _mm_set1_epi16(8); - __m128i curs = _mm_slli_epi16(curr, 2); - __m128i prvd = _mm_sub_epi16(prev, curr); - __m128i nxtd = _mm_sub_epi16(next, curr); - __m128i curb = _mm_add_epi16(curs, bias); - __m128i even = _mm_add_epi16(prvd, curb); - __m128i odd = _mm_add_epi16(nxtd, curb); - - // interleave even and odd pixels, then undo scaling. - __m128i int0 = _mm_unpacklo_epi16(even, odd); - __m128i int1 = _mm_unpackhi_epi16(even, odd); - __m128i de0 = _mm_srli_epi16(int0, 4); - __m128i de1 = _mm_srli_epi16(int1, 4); - - // pack and write output - __m128i outv = _mm_packus_epi16(de0, de1); - _mm_storeu_si128((__m128i *) (out + i*2), outv); -#elif defined(STBI_NEON) - // load and perform the vertical filtering pass - // this uses 3*x + y = 4*x + (y - x) - uint8x8_t farb = vld1_u8(in_far + i); - uint8x8_t nearb = vld1_u8(in_near + i); - int16x8_t diff = vreinterpretq_s16_u16(vsubl_u8(farb, nearb)); - int16x8_t nears = vreinterpretq_s16_u16(vshll_n_u8(nearb, 2)); - int16x8_t curr = vaddq_s16(nears, diff); // current row - - // horizontal filter works the same based on shifted vers of current - // row. "prev" is current row shifted right by 1 pixel; we need to - // insert the previous pixel value (from t1). - // "next" is current row shifted left by 1 pixel, with first pixel - // of next block of 8 pixels added in. - int16x8_t prv0 = vextq_s16(curr, curr, 7); - int16x8_t nxt0 = vextq_s16(curr, curr, 1); - int16x8_t prev = vsetq_lane_s16(t1, prv0, 0); - int16x8_t next = vsetq_lane_s16(3*in_near[i+8] + in_far[i+8], nxt0, 7); - - // horizontal filter, polyphase implementation since it's convenient: - // even pixels = 3*cur + prev = cur*4 + (prev - cur) - // odd pixels = 3*cur + next = cur*4 + (next - cur) - // note the shared term. - int16x8_t curs = vshlq_n_s16(curr, 2); - int16x8_t prvd = vsubq_s16(prev, curr); - int16x8_t nxtd = vsubq_s16(next, curr); - int16x8_t even = vaddq_s16(curs, prvd); - int16x8_t odd = vaddq_s16(curs, nxtd); - - // undo scaling and round, then store with even/odd phases interleaved - uint8x8x2_t o; - o.val[0] = vqrshrun_n_s16(even, 4); - o.val[1] = vqrshrun_n_s16(odd, 4); - vst2_u8(out + i*2, o); -#endif - - // "previous" value for next iter - t1 = 3*in_near[i+7] + in_far[i+7]; - } - - t0 = t1; - t1 = 3*in_near[i] + in_far[i]; - out[i*2] = stbi__div16(3*t1 + t0 + 8); - - for (++i; i < w; ++i) { - t0 = t1; - t1 = 3*in_near[i]+in_far[i]; - out[i*2-1] = stbi__div16(3*t0 + t1 + 8); - out[i*2 ] = stbi__div16(3*t1 + t0 + 8); - } - out[w*2-1] = stbi__div4(t1+2); - - STBI_NOTUSED(hs); - - return out; -} -#endif - -static stbi_uc *stbi__resample_row_generic(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) -{ - // resample with nearest-neighbor - int i,j; - STBI_NOTUSED(in_far); - for (i=0; i < w; ++i) - for (j=0; j < hs; ++j) - out[i*hs+j] = in_near[i]; - return out; -} - -// this is a reduced-precision calculation of YCbCr-to-RGB introduced -// to make sure the code produces the same results in both SIMD and scalar -#define stbi__float2fixed(x) (((int) ((x) * 4096.0f + 0.5f)) << 8) -static void stbi__YCbCr_to_RGB_row(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step) -{ - int i; - for (i=0; i < count; ++i) { - int y_fixed = (y[i] << 20) + (1<<19); // rounding - int r,g,b; - int cr = pcr[i] - 128; - int cb = pcb[i] - 128; - r = y_fixed + cr* stbi__float2fixed(1.40200f); - g = y_fixed + (cr*-stbi__float2fixed(0.71414f)) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000); - b = y_fixed + cb* stbi__float2fixed(1.77200f); - r >>= 20; - g >>= 20; - b >>= 20; - if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; } - if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; } - if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; } - out[0] = (stbi_uc)r; - out[1] = (stbi_uc)g; - out[2] = (stbi_uc)b; - out[3] = 255; - out += step; - } -} - -#if defined(STBI_SSE2) || defined(STBI_NEON) -static void stbi__YCbCr_to_RGB_simd(stbi_uc *out, stbi_uc const *y, stbi_uc const *pcb, stbi_uc const *pcr, int count, int step) -{ - int i = 0; - -#ifdef STBI_SSE2 - // step == 3 is pretty ugly on the final interleave, and i'm not convinced - // it's useful in practice (you wouldn't use it for textures, for example). - // so just accelerate step == 4 case. - if (step == 4) { - // this is a fairly straightforward implementation and not super-optimized. - __m128i signflip = _mm_set1_epi8(-0x80); - __m128i cr_const0 = _mm_set1_epi16( (short) ( 1.40200f*4096.0f+0.5f)); - __m128i cr_const1 = _mm_set1_epi16( - (short) ( 0.71414f*4096.0f+0.5f)); - __m128i cb_const0 = _mm_set1_epi16( - (short) ( 0.34414f*4096.0f+0.5f)); - __m128i cb_const1 = _mm_set1_epi16( (short) ( 1.77200f*4096.0f+0.5f)); - __m128i y_bias = _mm_set1_epi8((char) (unsigned char) 128); - __m128i xw = _mm_set1_epi16(255); // alpha channel - - for (; i+7 < count; i += 8) { - // load - __m128i y_bytes = _mm_loadl_epi64((__m128i *) (y+i)); - __m128i cr_bytes = _mm_loadl_epi64((__m128i *) (pcr+i)); - __m128i cb_bytes = _mm_loadl_epi64((__m128i *) (pcb+i)); - __m128i cr_biased = _mm_xor_si128(cr_bytes, signflip); // -128 - __m128i cb_biased = _mm_xor_si128(cb_bytes, signflip); // -128 - - // unpack to short (and left-shift cr, cb by 8) - __m128i yw = _mm_unpacklo_epi8(y_bias, y_bytes); - __m128i crw = _mm_unpacklo_epi8(_mm_setzero_si128(), cr_biased); - __m128i cbw = _mm_unpacklo_epi8(_mm_setzero_si128(), cb_biased); - - // color transform - __m128i yws = _mm_srli_epi16(yw, 4); - __m128i cr0 = _mm_mulhi_epi16(cr_const0, crw); - __m128i cb0 = _mm_mulhi_epi16(cb_const0, cbw); - __m128i cb1 = _mm_mulhi_epi16(cbw, cb_const1); - __m128i cr1 = _mm_mulhi_epi16(crw, cr_const1); - __m128i rws = _mm_add_epi16(cr0, yws); - __m128i gwt = _mm_add_epi16(cb0, yws); - __m128i bws = _mm_add_epi16(yws, cb1); - __m128i gws = _mm_add_epi16(gwt, cr1); - - // descale - __m128i rw = _mm_srai_epi16(rws, 4); - __m128i bw = _mm_srai_epi16(bws, 4); - __m128i gw = _mm_srai_epi16(gws, 4); - - // back to byte, set up for transpose - __m128i brb = _mm_packus_epi16(rw, bw); - __m128i gxb = _mm_packus_epi16(gw, xw); - - // transpose to interleave channels - __m128i t0 = _mm_unpacklo_epi8(brb, gxb); - __m128i t1 = _mm_unpackhi_epi8(brb, gxb); - __m128i o0 = _mm_unpacklo_epi16(t0, t1); - __m128i o1 = _mm_unpackhi_epi16(t0, t1); - - // store - _mm_storeu_si128((__m128i *) (out + 0), o0); - _mm_storeu_si128((__m128i *) (out + 16), o1); - out += 32; - } - } -#endif - -#ifdef STBI_NEON - // in this version, step=3 support would be easy to add. but is there demand? - if (step == 4) { - // this is a fairly straightforward implementation and not super-optimized. - uint8x8_t signflip = vdup_n_u8(0x80); - int16x8_t cr_const0 = vdupq_n_s16( (short) ( 1.40200f*4096.0f+0.5f)); - int16x8_t cr_const1 = vdupq_n_s16( - (short) ( 0.71414f*4096.0f+0.5f)); - int16x8_t cb_const0 = vdupq_n_s16( - (short) ( 0.34414f*4096.0f+0.5f)); - int16x8_t cb_const1 = vdupq_n_s16( (short) ( 1.77200f*4096.0f+0.5f)); - - for (; i+7 < count; i += 8) { - // load - uint8x8_t y_bytes = vld1_u8(y + i); - uint8x8_t cr_bytes = vld1_u8(pcr + i); - uint8x8_t cb_bytes = vld1_u8(pcb + i); - int8x8_t cr_biased = vreinterpret_s8_u8(vsub_u8(cr_bytes, signflip)); - int8x8_t cb_biased = vreinterpret_s8_u8(vsub_u8(cb_bytes, signflip)); - - // expand to s16 - int16x8_t yws = vreinterpretq_s16_u16(vshll_n_u8(y_bytes, 4)); - int16x8_t crw = vshll_n_s8(cr_biased, 7); - int16x8_t cbw = vshll_n_s8(cb_biased, 7); - - // color transform - int16x8_t cr0 = vqdmulhq_s16(crw, cr_const0); - int16x8_t cb0 = vqdmulhq_s16(cbw, cb_const0); - int16x8_t cr1 = vqdmulhq_s16(crw, cr_const1); - int16x8_t cb1 = vqdmulhq_s16(cbw, cb_const1); - int16x8_t rws = vaddq_s16(yws, cr0); - int16x8_t gws = vaddq_s16(vaddq_s16(yws, cb0), cr1); - int16x8_t bws = vaddq_s16(yws, cb1); - - // undo scaling, round, convert to byte - uint8x8x4_t o; - o.val[0] = vqrshrun_n_s16(rws, 4); - o.val[1] = vqrshrun_n_s16(gws, 4); - o.val[2] = vqrshrun_n_s16(bws, 4); - o.val[3] = vdup_n_u8(255); - - // store, interleaving r/g/b/a - vst4_u8(out, o); - out += 8*4; - } - } -#endif - - for (; i < count; ++i) { - int y_fixed = (y[i] << 20) + (1<<19); // rounding - int r,g,b; - int cr = pcr[i] - 128; - int cb = pcb[i] - 128; - r = y_fixed + cr* stbi__float2fixed(1.40200f); - g = y_fixed + cr*-stbi__float2fixed(0.71414f) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000); - b = y_fixed + cb* stbi__float2fixed(1.77200f); - r >>= 20; - g >>= 20; - b >>= 20; - if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; } - if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; } - if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; } - out[0] = (stbi_uc)r; - out[1] = (stbi_uc)g; - out[2] = (stbi_uc)b; - out[3] = 255; - out += step; - } -} -#endif - -// set up the kernels -static void stbi__setup_jpeg(stbi__jpeg *j) -{ - j->idct_block_kernel = stbi__idct_block; - j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_row; - j->resample_row_hv_2_kernel = stbi__resample_row_hv_2; - -#ifdef STBI_SSE2 - if (stbi__sse2_available()) { - j->idct_block_kernel = stbi__idct_simd; - j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; - j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; - } -#endif - -#ifdef STBI_NEON - j->idct_block_kernel = stbi__idct_simd; - j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; - j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; -#endif -} - -// clean up the temporary component buffers -static void stbi__cleanup_jpeg(stbi__jpeg *j) -{ - stbi__free_jpeg_components(j, j->s->img_n, 0); -} - -typedef struct -{ - resample_row_func resample; - stbi_uc *line0,*line1; - int hs,vs; // expansion factor in each axis - int w_lores; // horizontal pixels pre-expansion - int ystep; // how far through vertical expansion we are - int ypos; // which pre-expansion row we're on -} stbi__resample; - -// fast 0..255 * 0..255 => 0..255 rounded multiplication -static stbi_uc stbi__blinn_8x8(stbi_uc x, stbi_uc y) -{ - unsigned int t = x*y + 128; - return (stbi_uc) ((t + (t >>8)) >> 8); -} - -static stbi_uc *load_jpeg_image(stbi__jpeg *z, int *out_x, int *out_y, int *comp, int req_comp) -{ - int n, decode_n, is_rgb; - z->s->img_n = 0; // make stbi__cleanup_jpeg safe - - // validate req_comp - if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); - - // load a jpeg image from whichever source, but leave in YCbCr format - if (!stbi__decode_jpeg_image(z)) { stbi__cleanup_jpeg(z); return NULL; } - - // determine actual number of components to generate - n = req_comp ? req_comp : z->s->img_n >= 3 ? 3 : 1; - - is_rgb = z->s->img_n == 3 && (z->rgb == 3 || (z->app14_color_transform == 0 && !z->jfif)); - - if (z->s->img_n == 3 && n < 3 && !is_rgb) - decode_n = 1; - else - decode_n = z->s->img_n; - - // nothing to do if no components requested; check this now to avoid - // accessing uninitialized coutput[0] later - if (decode_n <= 0) { stbi__cleanup_jpeg(z); return NULL; } - - // resample and color-convert - { - int k; - unsigned int i,j; - stbi_uc *output; - stbi_uc *coutput[4] = { NULL, NULL, NULL, NULL }; - - stbi__resample res_comp[4]; - - for (k=0; k < decode_n; ++k) { - stbi__resample *r = &res_comp[k]; - - // allocate line buffer big enough for upsampling off the edges - // with upsample factor of 4 - z->img_comp[k].linebuf = (stbi_uc *) stbi__malloc(z->s->img_x + 3); - if (!z->img_comp[k].linebuf) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); } - - r->hs = z->img_h_max / z->img_comp[k].h; - r->vs = z->img_v_max / z->img_comp[k].v; - r->ystep = r->vs >> 1; - r->w_lores = (z->s->img_x + r->hs-1) / r->hs; - r->ypos = 0; - r->line0 = r->line1 = z->img_comp[k].data; - - if (r->hs == 1 && r->vs == 1) r->resample = resample_row_1; - else if (r->hs == 1 && r->vs == 2) r->resample = stbi__resample_row_v_2; - else if (r->hs == 2 && r->vs == 1) r->resample = stbi__resample_row_h_2; - else if (r->hs == 2 && r->vs == 2) r->resample = z->resample_row_hv_2_kernel; - else r->resample = stbi__resample_row_generic; - } - - // can't error after this so, this is safe - output = (stbi_uc *) stbi__malloc_mad3(n, z->s->img_x, z->s->img_y, 1); - if (!output) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); } - - // now go ahead and resample - for (j=0; j < z->s->img_y; ++j) { - stbi_uc *out = output + n * z->s->img_x * j; - for (k=0; k < decode_n; ++k) { - stbi__resample *r = &res_comp[k]; - int y_bot = r->ystep >= (r->vs >> 1); - coutput[k] = r->resample(z->img_comp[k].linebuf, - y_bot ? r->line1 : r->line0, - y_bot ? r->line0 : r->line1, - r->w_lores, r->hs); - if (++r->ystep >= r->vs) { - r->ystep = 0; - r->line0 = r->line1; - if (++r->ypos < z->img_comp[k].y) - r->line1 += z->img_comp[k].w2; - } - } - if (n >= 3) { - stbi_uc *y = coutput[0]; - if (z->s->img_n == 3) { - if (is_rgb) { - for (i=0; i < z->s->img_x; ++i) { - out[0] = y[i]; - out[1] = coutput[1][i]; - out[2] = coutput[2][i]; - out[3] = 255; - out += n; - } - } else { - z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); - } - } else if (z->s->img_n == 4) { - if (z->app14_color_transform == 0) { // CMYK - for (i=0; i < z->s->img_x; ++i) { - stbi_uc m = coutput[3][i]; - out[0] = stbi__blinn_8x8(coutput[0][i], m); - out[1] = stbi__blinn_8x8(coutput[1][i], m); - out[2] = stbi__blinn_8x8(coutput[2][i], m); - out[3] = 255; - out += n; - } - } else if (z->app14_color_transform == 2) { // YCCK - z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); - for (i=0; i < z->s->img_x; ++i) { - stbi_uc m = coutput[3][i]; - out[0] = stbi__blinn_8x8(255 - out[0], m); - out[1] = stbi__blinn_8x8(255 - out[1], m); - out[2] = stbi__blinn_8x8(255 - out[2], m); - out += n; - } - } else { // YCbCr + alpha? Ignore the fourth channel for now - z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); - } - } else - for (i=0; i < z->s->img_x; ++i) { - out[0] = out[1] = out[2] = y[i]; - out[3] = 255; // not used if n==3 - out += n; - } - } else { - if (is_rgb) { - if (n == 1) - for (i=0; i < z->s->img_x; ++i) - *out++ = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); - else { - for (i=0; i < z->s->img_x; ++i, out += 2) { - out[0] = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); - out[1] = 255; - } - } - } else if (z->s->img_n == 4 && z->app14_color_transform == 0) { - for (i=0; i < z->s->img_x; ++i) { - stbi_uc m = coutput[3][i]; - stbi_uc r = stbi__blinn_8x8(coutput[0][i], m); - stbi_uc g = stbi__blinn_8x8(coutput[1][i], m); - stbi_uc b = stbi__blinn_8x8(coutput[2][i], m); - out[0] = stbi__compute_y(r, g, b); - out[1] = 255; - out += n; - } - } else if (z->s->img_n == 4 && z->app14_color_transform == 2) { - for (i=0; i < z->s->img_x; ++i) { - out[0] = stbi__blinn_8x8(255 - coutput[0][i], coutput[3][i]); - out[1] = 255; - out += n; - } - } else { - stbi_uc *y = coutput[0]; - if (n == 1) - for (i=0; i < z->s->img_x; ++i) out[i] = y[i]; - else - for (i=0; i < z->s->img_x; ++i) { *out++ = y[i]; *out++ = 255; } - } - } - } - stbi__cleanup_jpeg(z); - *out_x = z->s->img_x; - *out_y = z->s->img_y; - if (comp) *comp = z->s->img_n >= 3 ? 3 : 1; // report original components, not output - return output; - } -} - -static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) -{ - unsigned char* result; - stbi__jpeg* j = (stbi__jpeg*) stbi__malloc(sizeof(stbi__jpeg)); - if (!j) return stbi__errpuc("outofmem", "Out of memory"); - memset(j, 0, sizeof(stbi__jpeg)); - STBI_NOTUSED(ri); - j->s = s; - stbi__setup_jpeg(j); - result = load_jpeg_image(j, x,y,comp,req_comp); - STBI_FREE(j); - return result; -} - -static int stbi__jpeg_test(stbi__context *s) -{ - int r; - stbi__jpeg* j = (stbi__jpeg*)stbi__malloc(sizeof(stbi__jpeg)); - if (!j) return stbi__err("outofmem", "Out of memory"); - memset(j, 0, sizeof(stbi__jpeg)); - j->s = s; - stbi__setup_jpeg(j); - r = stbi__decode_jpeg_header(j, STBI__SCAN_type); - stbi__rewind(s); - STBI_FREE(j); - return r; -} - -static int stbi__jpeg_info_raw(stbi__jpeg *j, int *x, int *y, int *comp) -{ - if (!stbi__decode_jpeg_header(j, STBI__SCAN_header)) { - stbi__rewind( j->s ); - return 0; - } - if (x) *x = j->s->img_x; - if (y) *y = j->s->img_y; - if (comp) *comp = j->s->img_n >= 3 ? 3 : 1; - return 1; -} - -static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp) -{ - int result; - stbi__jpeg* j = (stbi__jpeg*) (stbi__malloc(sizeof(stbi__jpeg))); - if (!j) return stbi__err("outofmem", "Out of memory"); - memset(j, 0, sizeof(stbi__jpeg)); - j->s = s; - result = stbi__jpeg_info_raw(j, x, y, comp); - STBI_FREE(j); - return result; -} -#endif - -// public domain zlib decode v0.2 Sean Barrett 2006-11-18 -// simple implementation -// - all input must be provided in an upfront buffer -// - all output is written to a single output buffer (can malloc/realloc) -// performance -// - fast huffman - -#ifndef STBI_NO_ZLIB - -// fast-way is faster to check than jpeg huffman, but slow way is slower -#define STBI__ZFAST_BITS 9 // accelerate all cases in default tables -#define STBI__ZFAST_MASK ((1 << STBI__ZFAST_BITS) - 1) -#define STBI__ZNSYMS 288 // number of symbols in literal/length alphabet - -// zlib-style huffman encoding -// (jpegs packs from left, zlib from right, so can't share code) -typedef struct -{ - stbi__uint16 fast[1 << STBI__ZFAST_BITS]; - stbi__uint16 firstcode[16]; - int maxcode[17]; - stbi__uint16 firstsymbol[16]; - stbi_uc size[STBI__ZNSYMS]; - stbi__uint16 value[STBI__ZNSYMS]; -} stbi__zhuffman; - -stbi_inline static int stbi__bitreverse16(int n) -{ - n = ((n & 0xAAAA) >> 1) | ((n & 0x5555) << 1); - n = ((n & 0xCCCC) >> 2) | ((n & 0x3333) << 2); - n = ((n & 0xF0F0) >> 4) | ((n & 0x0F0F) << 4); - n = ((n & 0xFF00) >> 8) | ((n & 0x00FF) << 8); - return n; -} - -stbi_inline static int stbi__bit_reverse(int v, int bits) -{ - STBI_ASSERT(bits <= 16); - // to bit reverse n bits, reverse 16 and shift - // e.g. 11 bits, bit reverse and shift away 5 - return stbi__bitreverse16(v) >> (16-bits); -} - -static int stbi__zbuild_huffman(stbi__zhuffman *z, const stbi_uc *sizelist, int num) -{ - int i,k=0; - int code, next_code[16], sizes[17]; - - // DEFLATE spec for generating codes - memset(sizes, 0, sizeof(sizes)); - memset(z->fast, 0, sizeof(z->fast)); - for (i=0; i < num; ++i) - ++sizes[sizelist[i]]; - sizes[0] = 0; - for (i=1; i < 16; ++i) - if (sizes[i] > (1 << i)) - return stbi__err("bad sizes", "Corrupt PNG"); - code = 0; - for (i=1; i < 16; ++i) { - next_code[i] = code; - z->firstcode[i] = (stbi__uint16) code; - z->firstsymbol[i] = (stbi__uint16) k; - code = (code + sizes[i]); - if (sizes[i]) - if (code-1 >= (1 << i)) return stbi__err("bad codelengths","Corrupt PNG"); - z->maxcode[i] = code << (16-i); // preshift for inner loop - code <<= 1; - k += sizes[i]; - } - z->maxcode[16] = 0x10000; // sentinel - for (i=0; i < num; ++i) { - int s = sizelist[i]; - if (s) { - int c = next_code[s] - z->firstcode[s] + z->firstsymbol[s]; - stbi__uint16 fastv = (stbi__uint16) ((s << 9) | i); - z->size [c] = (stbi_uc ) s; - z->value[c] = (stbi__uint16) i; - if (s <= STBI__ZFAST_BITS) { - int j = stbi__bit_reverse(next_code[s],s); - while (j < (1 << STBI__ZFAST_BITS)) { - z->fast[j] = fastv; - j += (1 << s); - } - } - ++next_code[s]; - } - } - return 1; -} - -// zlib-from-memory implementation for PNG reading -// because PNG allows splitting the zlib stream arbitrarily, -// and it's annoying structurally to have PNG call ZLIB call PNG, -// we require PNG read all the IDATs and combine them into a single -// memory buffer - -typedef struct -{ - stbi_uc *zbuffer, *zbuffer_end; - int num_bits; - int hit_zeof_once; - stbi__uint32 code_buffer; - - char *zout; - char *zout_start; - char *zout_end; - int z_expandable; - - stbi__zhuffman z_length, z_distance; -} stbi__zbuf; - -stbi_inline static int stbi__zeof(stbi__zbuf *z) -{ - return (z->zbuffer >= z->zbuffer_end); -} - -stbi_inline static stbi_uc stbi__zget8(stbi__zbuf *z) -{ - return stbi__zeof(z) ? 0 : *z->zbuffer++; -} - -static void stbi__fill_bits(stbi__zbuf *z) -{ - do { - if (z->code_buffer >= (1U << z->num_bits)) { - z->zbuffer = z->zbuffer_end; /* treat this as EOF so we fail. */ - return; - } - z->code_buffer |= (unsigned int) stbi__zget8(z) << z->num_bits; - z->num_bits += 8; - } while (z->num_bits <= 24); -} - -stbi_inline static unsigned int stbi__zreceive(stbi__zbuf *z, int n) -{ - unsigned int k; - if (z->num_bits < n) stbi__fill_bits(z); - k = z->code_buffer & ((1 << n) - 1); - z->code_buffer >>= n; - z->num_bits -= n; - return k; -} - -static int stbi__zhuffman_decode_slowpath(stbi__zbuf *a, stbi__zhuffman *z) -{ - int b,s,k; - // not resolved by fast table, so compute it the slow way - // use jpeg approach, which requires MSbits at top - k = stbi__bit_reverse(a->code_buffer, 16); - for (s=STBI__ZFAST_BITS+1; ; ++s) - if (k < z->maxcode[s]) - break; - if (s >= 16) return -1; // invalid code! - // code size is s, so: - b = (k >> (16-s)) - z->firstcode[s] + z->firstsymbol[s]; - if (b >= STBI__ZNSYMS) return -1; // some data was corrupt somewhere! - if (z->size[b] != s) return -1; // was originally an assert, but report failure instead. - a->code_buffer >>= s; - a->num_bits -= s; - return z->value[b]; -} - -stbi_inline static int stbi__zhuffman_decode(stbi__zbuf *a, stbi__zhuffman *z) -{ - int b,s; - if (a->num_bits < 16) { - if (stbi__zeof(a)) { - if (!a->hit_zeof_once) { - // This is the first time we hit eof, insert 16 extra padding btis - // to allow us to keep going; if we actually consume any of them - // though, that is invalid data. This is caught later. - a->hit_zeof_once = 1; - a->num_bits += 16; // add 16 implicit zero bits - } else { - // We already inserted our extra 16 padding bits and are again - // out, this stream is actually prematurely terminated. - return -1; - } - } else { - stbi__fill_bits(a); - } - } - b = z->fast[a->code_buffer & STBI__ZFAST_MASK]; - if (b) { - s = b >> 9; - a->code_buffer >>= s; - a->num_bits -= s; - return b & 511; - } - return stbi__zhuffman_decode_slowpath(a, z); -} - -static int stbi__zexpand(stbi__zbuf *z, char *zout, int n) // need to make room for n bytes -{ - char *q; - unsigned int cur, limit, old_limit; - z->zout = zout; - if (!z->z_expandable) return stbi__err("output buffer limit","Corrupt PNG"); - cur = (unsigned int) (z->zout - z->zout_start); - limit = old_limit = (unsigned) (z->zout_end - z->zout_start); - if (UINT_MAX - cur < (unsigned) n) return stbi__err("outofmem", "Out of memory"); - while (cur + n > limit) { - if(limit > UINT_MAX / 2) return stbi__err("outofmem", "Out of memory"); - limit *= 2; - } - q = (char *) STBI_REALLOC_SIZED(z->zout_start, old_limit, limit); - STBI_NOTUSED(old_limit); - if (q == NULL) return stbi__err("outofmem", "Out of memory"); - z->zout_start = q; - z->zout = q + cur; - z->zout_end = q + limit; - return 1; -} - -static const int stbi__zlength_base[31] = { - 3,4,5,6,7,8,9,10,11,13, - 15,17,19,23,27,31,35,43,51,59, - 67,83,99,115,131,163,195,227,258,0,0 }; - -static const int stbi__zlength_extra[31]= -{ 0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0 }; - -static const int stbi__zdist_base[32] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193, -257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,0,0}; - -static const int stbi__zdist_extra[32] = -{ 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13}; - -static int stbi__parse_huffman_block(stbi__zbuf *a) -{ - char *zout = a->zout; - for(;;) { - int z = stbi__zhuffman_decode(a, &a->z_length); - if (z < 256) { - if (z < 0) return stbi__err("bad huffman code","Corrupt PNG"); // error in huffman codes - if (zout >= a->zout_end) { - if (!stbi__zexpand(a, zout, 1)) return 0; - zout = a->zout; - } - *zout++ = (char) z; - } else { - stbi_uc *p; - int len,dist; - if (z == 256) { - a->zout = zout; - if (a->hit_zeof_once && a->num_bits < 16) { - // The first time we hit zeof, we inserted 16 extra zero bits into our bit - // buffer so the decoder can just do its speculative decoding. But if we - // actually consumed any of those bits (which is the case when num_bits < 16), - // the stream actually read past the end so it is malformed. - return stbi__err("unexpected end","Corrupt PNG"); - } - return 1; - } - if (z >= 286) return stbi__err("bad huffman code","Corrupt PNG"); // per DEFLATE, length codes 286 and 287 must not appear in compressed data - z -= 257; - len = stbi__zlength_base[z]; - if (stbi__zlength_extra[z]) len += stbi__zreceive(a, stbi__zlength_extra[z]); - z = stbi__zhuffman_decode(a, &a->z_distance); - if (z < 0 || z >= 30) return stbi__err("bad huffman code","Corrupt PNG"); // per DEFLATE, distance codes 30 and 31 must not appear in compressed data - dist = stbi__zdist_base[z]; - if (stbi__zdist_extra[z]) dist += stbi__zreceive(a, stbi__zdist_extra[z]); - if (zout - a->zout_start < dist) return stbi__err("bad dist","Corrupt PNG"); - if (len > a->zout_end - zout) { - if (!stbi__zexpand(a, zout, len)) return 0; - zout = a->zout; - } - p = (stbi_uc *) (zout - dist); - if (dist == 1) { // run of one byte; common in images. - stbi_uc v = *p; - if (len) { do *zout++ = v; while (--len); } - } else { - if (len) { do *zout++ = *p++; while (--len); } - } - } - } -} - -static int stbi__compute_huffman_codes(stbi__zbuf *a) -{ - static const stbi_uc length_dezigzag[19] = { 16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15 }; - stbi__zhuffman z_codelength; - stbi_uc lencodes[286+32+137];//padding for maximum single op - stbi_uc codelength_sizes[19]; - int i,n; - - int hlit = stbi__zreceive(a,5) + 257; - int hdist = stbi__zreceive(a,5) + 1; - int hclen = stbi__zreceive(a,4) + 4; - int ntot = hlit + hdist; - - memset(codelength_sizes, 0, sizeof(codelength_sizes)); - for (i=0; i < hclen; ++i) { - int s = stbi__zreceive(a,3); - codelength_sizes[length_dezigzag[i]] = (stbi_uc) s; - } - if (!stbi__zbuild_huffman(&z_codelength, codelength_sizes, 19)) return 0; - - n = 0; - while (n < ntot) { - int c = stbi__zhuffman_decode(a, &z_codelength); - if (c < 0 || c >= 19) return stbi__err("bad codelengths", "Corrupt PNG"); - if (c < 16) - lencodes[n++] = (stbi_uc) c; - else { - stbi_uc fill = 0; - if (c == 16) { - c = stbi__zreceive(a,2)+3; - if (n == 0) return stbi__err("bad codelengths", "Corrupt PNG"); - fill = lencodes[n-1]; - } else if (c == 17) { - c = stbi__zreceive(a,3)+3; - } else if (c == 18) { - c = stbi__zreceive(a,7)+11; - } else { - return stbi__err("bad codelengths", "Corrupt PNG"); - } - if (ntot - n < c) return stbi__err("bad codelengths", "Corrupt PNG"); - memset(lencodes+n, fill, c); - n += c; - } - } - if (n != ntot) return stbi__err("bad codelengths","Corrupt PNG"); - if (!stbi__zbuild_huffman(&a->z_length, lencodes, hlit)) return 0; - if (!stbi__zbuild_huffman(&a->z_distance, lencodes+hlit, hdist)) return 0; - return 1; -} - -static int stbi__parse_uncompressed_block(stbi__zbuf *a) -{ - stbi_uc header[4]; - int len,nlen,k; - if (a->num_bits & 7) - stbi__zreceive(a, a->num_bits & 7); // discard - // drain the bit-packed data into header - k = 0; - while (a->num_bits > 0) { - header[k++] = (stbi_uc) (a->code_buffer & 255); // suppress MSVC run-time check - a->code_buffer >>= 8; - a->num_bits -= 8; - } - if (a->num_bits < 0) return stbi__err("zlib corrupt","Corrupt PNG"); - // now fill header the normal way - while (k < 4) - header[k++] = stbi__zget8(a); - len = header[1] * 256 + header[0]; - nlen = header[3] * 256 + header[2]; - if (nlen != (len ^ 0xffff)) return stbi__err("zlib corrupt","Corrupt PNG"); - if (a->zbuffer + len > a->zbuffer_end) return stbi__err("read past buffer","Corrupt PNG"); - if (a->zout + len > a->zout_end) - if (!stbi__zexpand(a, a->zout, len)) return 0; - memcpy(a->zout, a->zbuffer, len); - a->zbuffer += len; - a->zout += len; - return 1; -} - -static int stbi__parse_zlib_header(stbi__zbuf *a) -{ - int cmf = stbi__zget8(a); - int cm = cmf & 15; - /* int cinfo = cmf >> 4; */ - int flg = stbi__zget8(a); - if (stbi__zeof(a)) return stbi__err("bad zlib header","Corrupt PNG"); // zlib spec - if ((cmf*256+flg) % 31 != 0) return stbi__err("bad zlib header","Corrupt PNG"); // zlib spec - if (flg & 32) return stbi__err("no preset dict","Corrupt PNG"); // preset dictionary not allowed in png - if (cm != 8) return stbi__err("bad compression","Corrupt PNG"); // DEFLATE required for png - // window = 1 << (8 + cinfo)... but who cares, we fully buffer output - return 1; -} - -static const stbi_uc stbi__zdefault_length[STBI__ZNSYMS] = -{ - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, - 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, - 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, - 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, - 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8 -}; -static const stbi_uc stbi__zdefault_distance[32] = -{ - 5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5 -}; -/* -Init algorithm: -{ - int i; // use <= to match clearly with spec - for (i=0; i <= 143; ++i) stbi__zdefault_length[i] = 8; - for ( ; i <= 255; ++i) stbi__zdefault_length[i] = 9; - for ( ; i <= 279; ++i) stbi__zdefault_length[i] = 7; - for ( ; i <= 287; ++i) stbi__zdefault_length[i] = 8; - - for (i=0; i <= 31; ++i) stbi__zdefault_distance[i] = 5; -} -*/ - -static int stbi__parse_zlib(stbi__zbuf *a, int parse_header) -{ - int final, type; - if (parse_header) - if (!stbi__parse_zlib_header(a)) return 0; - a->num_bits = 0; - a->code_buffer = 0; - a->hit_zeof_once = 0; - do { - final = stbi__zreceive(a,1); - type = stbi__zreceive(a,2); - if (type == 0) { - if (!stbi__parse_uncompressed_block(a)) return 0; - } else if (type == 3) { - return 0; - } else { - if (type == 1) { - // use fixed code lengths - if (!stbi__zbuild_huffman(&a->z_length , stbi__zdefault_length , STBI__ZNSYMS)) return 0; - if (!stbi__zbuild_huffman(&a->z_distance, stbi__zdefault_distance, 32)) return 0; - } else { - if (!stbi__compute_huffman_codes(a)) return 0; - } - if (!stbi__parse_huffman_block(a)) return 0; - } - } while (!final); - return 1; -} - -static int stbi__do_zlib(stbi__zbuf *a, char *obuf, int olen, int exp, int parse_header) -{ - a->zout_start = obuf; - a->zout = obuf; - a->zout_end = obuf + olen; - a->z_expandable = exp; - - return stbi__parse_zlib(a, parse_header); -} - -STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen) -{ - stbi__zbuf a; - char *p = (char *) stbi__malloc(initial_size); - if (p == NULL) return NULL; - a.zbuffer = (stbi_uc *) buffer; - a.zbuffer_end = (stbi_uc *) buffer + len; - if (stbi__do_zlib(&a, p, initial_size, 1, 1)) { - if (outlen) *outlen = (int) (a.zout - a.zout_start); - return a.zout_start; - } else { - STBI_FREE(a.zout_start); - return NULL; - } -} - -STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen) -{ - return stbi_zlib_decode_malloc_guesssize(buffer, len, 16384, outlen); -} - -STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header) -{ - stbi__zbuf a; - char *p = (char *) stbi__malloc(initial_size); - if (p == NULL) return NULL; - a.zbuffer = (stbi_uc *) buffer; - a.zbuffer_end = (stbi_uc *) buffer + len; - if (stbi__do_zlib(&a, p, initial_size, 1, parse_header)) { - if (outlen) *outlen = (int) (a.zout - a.zout_start); - return a.zout_start; - } else { - STBI_FREE(a.zout_start); - return NULL; - } -} - -STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen) -{ - stbi__zbuf a; - a.zbuffer = (stbi_uc *) ibuffer; - a.zbuffer_end = (stbi_uc *) ibuffer + ilen; - if (stbi__do_zlib(&a, obuffer, olen, 0, 1)) - return (int) (a.zout - a.zout_start); - else - return -1; -} - -STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen) -{ - stbi__zbuf a; - char *p = (char *) stbi__malloc(16384); - if (p == NULL) return NULL; - a.zbuffer = (stbi_uc *) buffer; - a.zbuffer_end = (stbi_uc *) buffer+len; - if (stbi__do_zlib(&a, p, 16384, 1, 0)) { - if (outlen) *outlen = (int) (a.zout - a.zout_start); - return a.zout_start; - } else { - STBI_FREE(a.zout_start); - return NULL; - } -} - -STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen) -{ - stbi__zbuf a; - a.zbuffer = (stbi_uc *) ibuffer; - a.zbuffer_end = (stbi_uc *) ibuffer + ilen; - if (stbi__do_zlib(&a, obuffer, olen, 0, 0)) - return (int) (a.zout - a.zout_start); - else - return -1; -} -#endif - -// public domain "baseline" PNG decoder v0.10 Sean Barrett 2006-11-18 -// simple implementation -// - only 8-bit samples -// - no CRC checking -// - allocates lots of intermediate memory -// - avoids problem of streaming data between subsystems -// - avoids explicit window management -// performance -// - uses stb_zlib, a PD zlib implementation with fast huffman decoding - -#ifndef STBI_NO_PNG -typedef struct -{ - stbi__uint32 length; - stbi__uint32 type; -} stbi__pngchunk; - -static stbi__pngchunk stbi__get_chunk_header(stbi__context *s) -{ - stbi__pngchunk c; - c.length = stbi__get32be(s); - c.type = stbi__get32be(s); - return c; -} - -static int stbi__check_png_header(stbi__context *s) -{ - static const stbi_uc png_sig[8] = { 137,80,78,71,13,10,26,10 }; - int i; - for (i=0; i < 8; ++i) - if (stbi__get8(s) != png_sig[i]) return stbi__err("bad png sig","Not a PNG"); - return 1; -} - -typedef struct -{ - stbi__context *s; - stbi_uc *idata, *expanded, *out; - int depth; -} stbi__png; - - -enum { - STBI__F_none=0, - STBI__F_sub=1, - STBI__F_up=2, - STBI__F_avg=3, - STBI__F_paeth=4, - // synthetic filter used for first scanline to avoid needing a dummy row of 0s - STBI__F_avg_first -}; - -static stbi_uc first_row_filter[5] = -{ - STBI__F_none, - STBI__F_sub, - STBI__F_none, - STBI__F_avg_first, - STBI__F_sub // Paeth with b=c=0 turns out to be equivalent to sub -}; - -static int stbi__paeth(int a, int b, int c) -{ - // This formulation looks very different from the reference in the PNG spec, but is - // actually equivalent and has favorable data dependencies and admits straightforward - // generation of branch-free code, which helps performance significantly. - int thresh = c*3 - (a + b); - int lo = a < b ? a : b; - int hi = a < b ? b : a; - int t0 = (hi <= thresh) ? lo : c; - int t1 = (thresh <= lo) ? hi : t0; - return t1; -} - -static const stbi_uc stbi__depth_scale_table[9] = { 0, 0xff, 0x55, 0, 0x11, 0,0,0, 0x01 }; - -// adds an extra all-255 alpha channel -// dest == src is legal -// img_n must be 1 or 3 -static void stbi__create_png_alpha_expand8(stbi_uc *dest, stbi_uc *src, stbi__uint32 x, int img_n) -{ - int i; - // must process data backwards since we allow dest==src - if (img_n == 1) { - for (i=x-1; i >= 0; --i) { - dest[i*2+1] = 255; - dest[i*2+0] = src[i]; - } - } else { - STBI_ASSERT(img_n == 3); - for (i=x-1; i >= 0; --i) { - dest[i*4+3] = 255; - dest[i*4+2] = src[i*3+2]; - dest[i*4+1] = src[i*3+1]; - dest[i*4+0] = src[i*3+0]; - } - } -} - -// create the png data from post-deflated data -static int stbi__create_png_image_raw(stbi__png *a, stbi_uc *raw, stbi__uint32 raw_len, int out_n, stbi__uint32 x, stbi__uint32 y, int depth, int color) -{ - int bytes = (depth == 16 ? 2 : 1); - stbi__context *s = a->s; - stbi__uint32 i,j,stride = x*out_n*bytes; - stbi__uint32 img_len, img_width_bytes; - stbi_uc *filter_buf; - int all_ok = 1; - int k; - int img_n = s->img_n; // copy it into a local for later - - int output_bytes = out_n*bytes; - int filter_bytes = img_n*bytes; - int width = x; - - STBI_ASSERT(out_n == s->img_n || out_n == s->img_n+1); - a->out = (stbi_uc *) stbi__malloc_mad3(x, y, output_bytes, 0); // extra bytes to write off the end into - if (!a->out) return stbi__err("outofmem", "Out of memory"); - - // note: error exits here don't need to clean up a->out individually, - // stbi__do_png always does on error. - if (!stbi__mad3sizes_valid(img_n, x, depth, 7)) return stbi__err("too large", "Corrupt PNG"); - img_width_bytes = (((img_n * x * depth) + 7) >> 3); - if (!stbi__mad2sizes_valid(img_width_bytes, y, img_width_bytes)) return stbi__err("too large", "Corrupt PNG"); - img_len = (img_width_bytes + 1) * y; - - // we used to check for exact match between raw_len and img_len on non-interlaced PNGs, - // but issue #276 reported a PNG in the wild that had extra data at the end (all zeros), - // so just check for raw_len < img_len always. - if (raw_len < img_len) return stbi__err("not enough pixels","Corrupt PNG"); - - // Allocate two scan lines worth of filter workspace buffer. - filter_buf = (stbi_uc *) stbi__malloc_mad2(img_width_bytes, 2, 0); - if (!filter_buf) return stbi__err("outofmem", "Out of memory"); - - // Filtering for low-bit-depth images - if (depth < 8) { - filter_bytes = 1; - width = img_width_bytes; - } - - for (j=0; j < y; ++j) { - // cur/prior filter buffers alternate - stbi_uc *cur = filter_buf + (j & 1)*img_width_bytes; - stbi_uc *prior = filter_buf + (~j & 1)*img_width_bytes; - stbi_uc *dest = a->out + stride*j; - int nk = width * filter_bytes; - int filter = *raw++; - - // check filter type - if (filter > 4) { - all_ok = stbi__err("invalid filter","Corrupt PNG"); - break; - } - - // if first row, use special filter that doesn't sample previous row - if (j == 0) filter = first_row_filter[filter]; - - // perform actual filtering - switch (filter) { - case STBI__F_none: - memcpy(cur, raw, nk); - break; - case STBI__F_sub: - memcpy(cur, raw, filter_bytes); - for (k = filter_bytes; k < nk; ++k) - cur[k] = STBI__BYTECAST(raw[k] + cur[k-filter_bytes]); - break; - case STBI__F_up: - for (k = 0; k < nk; ++k) - cur[k] = STBI__BYTECAST(raw[k] + prior[k]); - break; - case STBI__F_avg: - for (k = 0; k < filter_bytes; ++k) - cur[k] = STBI__BYTECAST(raw[k] + (prior[k]>>1)); - for (k = filter_bytes; k < nk; ++k) - cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k-filter_bytes])>>1)); - break; - case STBI__F_paeth: - for (k = 0; k < filter_bytes; ++k) - cur[k] = STBI__BYTECAST(raw[k] + prior[k]); // prior[k] == stbi__paeth(0,prior[k],0) - for (k = filter_bytes; k < nk; ++k) - cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes], prior[k], prior[k-filter_bytes])); - break; - case STBI__F_avg_first: - memcpy(cur, raw, filter_bytes); - for (k = filter_bytes; k < nk; ++k) - cur[k] = STBI__BYTECAST(raw[k] + (cur[k-filter_bytes] >> 1)); - break; - } - - raw += nk; - - // expand decoded bits in cur to dest, also adding an extra alpha channel if desired - if (depth < 8) { - stbi_uc scale = (color == 0) ? stbi__depth_scale_table[depth] : 1; // scale grayscale values to 0..255 range - stbi_uc *in = cur; - stbi_uc *out = dest; - stbi_uc inb = 0; - stbi__uint32 nsmp = x*img_n; - - // expand bits to bytes first - if (depth == 4) { - for (i=0; i < nsmp; ++i) { - if ((i & 1) == 0) inb = *in++; - *out++ = scale * (inb >> 4); - inb <<= 4; - } - } else if (depth == 2) { - for (i=0; i < nsmp; ++i) { - if ((i & 3) == 0) inb = *in++; - *out++ = scale * (inb >> 6); - inb <<= 2; - } - } else { - STBI_ASSERT(depth == 1); - for (i=0; i < nsmp; ++i) { - if ((i & 7) == 0) inb = *in++; - *out++ = scale * (inb >> 7); - inb <<= 1; - } - } - - // insert alpha=255 values if desired - if (img_n != out_n) - stbi__create_png_alpha_expand8(dest, dest, x, img_n); - } else if (depth == 8) { - if (img_n == out_n) - memcpy(dest, cur, x*img_n); - else - stbi__create_png_alpha_expand8(dest, cur, x, img_n); - } else if (depth == 16) { - // convert the image data from big-endian to platform-native - stbi__uint16 *dest16 = (stbi__uint16*)dest; - stbi__uint32 nsmp = x*img_n; - - if (img_n == out_n) { - for (i = 0; i < nsmp; ++i, ++dest16, cur += 2) - *dest16 = (cur[0] << 8) | cur[1]; - } else { - STBI_ASSERT(img_n+1 == out_n); - if (img_n == 1) { - for (i = 0; i < x; ++i, dest16 += 2, cur += 2) { - dest16[0] = (cur[0] << 8) | cur[1]; - dest16[1] = 0xffff; - } - } else { - STBI_ASSERT(img_n == 3); - for (i = 0; i < x; ++i, dest16 += 4, cur += 6) { - dest16[0] = (cur[0] << 8) | cur[1]; - dest16[1] = (cur[2] << 8) | cur[3]; - dest16[2] = (cur[4] << 8) | cur[5]; - dest16[3] = 0xffff; - } - } - } - } - } - - STBI_FREE(filter_buf); - if (!all_ok) return 0; - - return 1; -} - -static int stbi__create_png_image(stbi__png *a, stbi_uc *image_data, stbi__uint32 image_data_len, int out_n, int depth, int color, int interlaced) -{ - int bytes = (depth == 16 ? 2 : 1); - int out_bytes = out_n * bytes; - stbi_uc *final; - int p; - if (!interlaced) - return stbi__create_png_image_raw(a, image_data, image_data_len, out_n, a->s->img_x, a->s->img_y, depth, color); - - // de-interlacing - final = (stbi_uc *) stbi__malloc_mad3(a->s->img_x, a->s->img_y, out_bytes, 0); - if (!final) return stbi__err("outofmem", "Out of memory"); - for (p=0; p < 7; ++p) { - int xorig[] = { 0,4,0,2,0,1,0 }; - int yorig[] = { 0,0,4,0,2,0,1 }; - int xspc[] = { 8,8,4,4,2,2,1 }; - int yspc[] = { 8,8,8,4,4,2,2 }; - int i,j,x,y; - // pass1_x[4] = 0, pass1_x[5] = 1, pass1_x[12] = 1 - x = (a->s->img_x - xorig[p] + xspc[p]-1) / xspc[p]; - y = (a->s->img_y - yorig[p] + yspc[p]-1) / yspc[p]; - if (x && y) { - stbi__uint32 img_len = ((((a->s->img_n * x * depth) + 7) >> 3) + 1) * y; - if (!stbi__create_png_image_raw(a, image_data, image_data_len, out_n, x, y, depth, color)) { - STBI_FREE(final); - return 0; - } - for (j=0; j < y; ++j) { - for (i=0; i < x; ++i) { - int out_y = j*yspc[p]+yorig[p]; - int out_x = i*xspc[p]+xorig[p]; - memcpy(final + out_y*a->s->img_x*out_bytes + out_x*out_bytes, - a->out + (j*x+i)*out_bytes, out_bytes); - } - } - STBI_FREE(a->out); - image_data += img_len; - image_data_len -= img_len; - } - } - a->out = final; - - return 1; -} - -static int stbi__compute_transparency(stbi__png *z, stbi_uc tc[3], int out_n) -{ - stbi__context *s = z->s; - stbi__uint32 i, pixel_count = s->img_x * s->img_y; - stbi_uc *p = z->out; - - // compute color-based transparency, assuming we've - // already got 255 as the alpha value in the output - STBI_ASSERT(out_n == 2 || out_n == 4); - - if (out_n == 2) { - for (i=0; i < pixel_count; ++i) { - p[1] = (p[0] == tc[0] ? 0 : 255); - p += 2; - } - } else { - for (i=0; i < pixel_count; ++i) { - if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) - p[3] = 0; - p += 4; - } - } - return 1; -} - -static int stbi__compute_transparency16(stbi__png *z, stbi__uint16 tc[3], int out_n) -{ - stbi__context *s = z->s; - stbi__uint32 i, pixel_count = s->img_x * s->img_y; - stbi__uint16 *p = (stbi__uint16*) z->out; - - // compute color-based transparency, assuming we've - // already got 65535 as the alpha value in the output - STBI_ASSERT(out_n == 2 || out_n == 4); - - if (out_n == 2) { - for (i = 0; i < pixel_count; ++i) { - p[1] = (p[0] == tc[0] ? 0 : 65535); - p += 2; - } - } else { - for (i = 0; i < pixel_count; ++i) { - if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) - p[3] = 0; - p += 4; - } - } - return 1; -} - -static int stbi__expand_png_palette(stbi__png *a, stbi_uc *palette, int len, int pal_img_n) -{ - stbi__uint32 i, pixel_count = a->s->img_x * a->s->img_y; - stbi_uc *p, *temp_out, *orig = a->out; - - p = (stbi_uc *) stbi__malloc_mad2(pixel_count, pal_img_n, 0); - if (p == NULL) return stbi__err("outofmem", "Out of memory"); - - // between here and free(out) below, exitting would leak - temp_out = p; - - if (pal_img_n == 3) { - for (i=0; i < pixel_count; ++i) { - int n = orig[i]*4; - p[0] = palette[n ]; - p[1] = palette[n+1]; - p[2] = palette[n+2]; - p += 3; - } - } else { - for (i=0; i < pixel_count; ++i) { - int n = orig[i]*4; - p[0] = palette[n ]; - p[1] = palette[n+1]; - p[2] = palette[n+2]; - p[3] = palette[n+3]; - p += 4; - } - } - STBI_FREE(a->out); - a->out = temp_out; - - STBI_NOTUSED(len); - - return 1; -} - -static int stbi__unpremultiply_on_load_global = 0; -static int stbi__de_iphone_flag_global = 0; - -STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply) -{ - stbi__unpremultiply_on_load_global = flag_true_if_should_unpremultiply; -} - -STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert) -{ - stbi__de_iphone_flag_global = flag_true_if_should_convert; -} - -#ifndef STBI_THREAD_LOCAL -#define stbi__unpremultiply_on_load stbi__unpremultiply_on_load_global -#define stbi__de_iphone_flag stbi__de_iphone_flag_global -#else -static STBI_THREAD_LOCAL int stbi__unpremultiply_on_load_local, stbi__unpremultiply_on_load_set; -static STBI_THREAD_LOCAL int stbi__de_iphone_flag_local, stbi__de_iphone_flag_set; - -STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply) -{ - stbi__unpremultiply_on_load_local = flag_true_if_should_unpremultiply; - stbi__unpremultiply_on_load_set = 1; -} - -STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert) -{ - stbi__de_iphone_flag_local = flag_true_if_should_convert; - stbi__de_iphone_flag_set = 1; -} - -#define stbi__unpremultiply_on_load (stbi__unpremultiply_on_load_set \ - ? stbi__unpremultiply_on_load_local \ - : stbi__unpremultiply_on_load_global) -#define stbi__de_iphone_flag (stbi__de_iphone_flag_set \ - ? stbi__de_iphone_flag_local \ - : stbi__de_iphone_flag_global) -#endif // STBI_THREAD_LOCAL - -static void stbi__de_iphone(stbi__png *z) -{ - stbi__context *s = z->s; - stbi__uint32 i, pixel_count = s->img_x * s->img_y; - stbi_uc *p = z->out; - - if (s->img_out_n == 3) { // convert bgr to rgb - for (i=0; i < pixel_count; ++i) { - stbi_uc t = p[0]; - p[0] = p[2]; - p[2] = t; - p += 3; - } - } else { - STBI_ASSERT(s->img_out_n == 4); - if (stbi__unpremultiply_on_load) { - // convert bgr to rgb and unpremultiply - for (i=0; i < pixel_count; ++i) { - stbi_uc a = p[3]; - stbi_uc t = p[0]; - if (a) { - stbi_uc half = a / 2; - p[0] = (p[2] * 255 + half) / a; - p[1] = (p[1] * 255 + half) / a; - p[2] = ( t * 255 + half) / a; - } else { - p[0] = p[2]; - p[2] = t; - } - p += 4; - } - } else { - // convert bgr to rgb - for (i=0; i < pixel_count; ++i) { - stbi_uc t = p[0]; - p[0] = p[2]; - p[2] = t; - p += 4; - } - } - } -} - -#define STBI__PNG_TYPE(a,b,c,d) (((unsigned) (a) << 24) + ((unsigned) (b) << 16) + ((unsigned) (c) << 8) + (unsigned) (d)) - -static int stbi__parse_png_file(stbi__png *z, int scan, int req_comp) -{ - stbi_uc palette[1024], pal_img_n=0; - stbi_uc has_trans=0, tc[3]={0}; - stbi__uint16 tc16[3]; - stbi__uint32 ioff=0, idata_limit=0, i, pal_len=0; - int first=1,k,interlace=0, color=0, is_iphone=0; - stbi__context *s = z->s; - - z->expanded = NULL; - z->idata = NULL; - z->out = NULL; - - if (!stbi__check_png_header(s)) return 0; - - if (scan == STBI__SCAN_type) return 1; - - for (;;) { - stbi__pngchunk c = stbi__get_chunk_header(s); - switch (c.type) { - case STBI__PNG_TYPE('C','g','B','I'): - is_iphone = 1; - stbi__skip(s, c.length); - break; - case STBI__PNG_TYPE('I','H','D','R'): { - int comp,filter; - if (!first) return stbi__err("multiple IHDR","Corrupt PNG"); - first = 0; - if (c.length != 13) return stbi__err("bad IHDR len","Corrupt PNG"); - s->img_x = stbi__get32be(s); - s->img_y = stbi__get32be(s); - if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); - if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); - z->depth = stbi__get8(s); if (z->depth != 1 && z->depth != 2 && z->depth != 4 && z->depth != 8 && z->depth != 16) return stbi__err("1/2/4/8/16-bit only","PNG not supported: 1/2/4/8/16-bit only"); - color = stbi__get8(s); if (color > 6) return stbi__err("bad ctype","Corrupt PNG"); - if (color == 3 && z->depth == 16) return stbi__err("bad ctype","Corrupt PNG"); - if (color == 3) pal_img_n = 3; else if (color & 1) return stbi__err("bad ctype","Corrupt PNG"); - comp = stbi__get8(s); if (comp) return stbi__err("bad comp method","Corrupt PNG"); - filter= stbi__get8(s); if (filter) return stbi__err("bad filter method","Corrupt PNG"); - interlace = stbi__get8(s); if (interlace>1) return stbi__err("bad interlace method","Corrupt PNG"); - if (!s->img_x || !s->img_y) return stbi__err("0-pixel image","Corrupt PNG"); - if (!pal_img_n) { - s->img_n = (color & 2 ? 3 : 1) + (color & 4 ? 1 : 0); - if ((1 << 30) / s->img_x / s->img_n < s->img_y) return stbi__err("too large", "Image too large to decode"); - } else { - // if paletted, then pal_n is our final components, and - // img_n is # components to decompress/filter. - s->img_n = 1; - if ((1 << 30) / s->img_x / 4 < s->img_y) return stbi__err("too large","Corrupt PNG"); - } - // even with SCAN_header, have to scan to see if we have a tRNS - break; - } - - case STBI__PNG_TYPE('P','L','T','E'): { - if (first) return stbi__err("first not IHDR", "Corrupt PNG"); - if (c.length > 256*3) return stbi__err("invalid PLTE","Corrupt PNG"); - pal_len = c.length / 3; - if (pal_len * 3 != c.length) return stbi__err("invalid PLTE","Corrupt PNG"); - for (i=0; i < pal_len; ++i) { - palette[i*4+0] = stbi__get8(s); - palette[i*4+1] = stbi__get8(s); - palette[i*4+2] = stbi__get8(s); - palette[i*4+3] = 255; - } - break; - } - - case STBI__PNG_TYPE('t','R','N','S'): { - if (first) return stbi__err("first not IHDR", "Corrupt PNG"); - if (z->idata) return stbi__err("tRNS after IDAT","Corrupt PNG"); - if (pal_img_n) { - if (scan == STBI__SCAN_header) { s->img_n = 4; return 1; } - if (pal_len == 0) return stbi__err("tRNS before PLTE","Corrupt PNG"); - if (c.length > pal_len) return stbi__err("bad tRNS len","Corrupt PNG"); - pal_img_n = 4; - for (i=0; i < c.length; ++i) - palette[i*4+3] = stbi__get8(s); - } else { - if (!(s->img_n & 1)) return stbi__err("tRNS with alpha","Corrupt PNG"); - if (c.length != (stbi__uint32) s->img_n*2) return stbi__err("bad tRNS len","Corrupt PNG"); - has_trans = 1; - // non-paletted with tRNS = constant alpha. if header-scanning, we can stop now. - if (scan == STBI__SCAN_header) { ++s->img_n; return 1; } - if (z->depth == 16) { - for (k = 0; k < s->img_n; ++k) tc16[k] = (stbi__uint16)stbi__get16be(s); // copy the values as-is - } else { - for (k = 0; k < s->img_n; ++k) tc[k] = (stbi_uc)(stbi__get16be(s) & 255) * stbi__depth_scale_table[z->depth]; // non 8-bit images will be larger - } - } - break; - } - - case STBI__PNG_TYPE('I','D','A','T'): { - if (first) return stbi__err("first not IHDR", "Corrupt PNG"); - if (pal_img_n && !pal_len) return stbi__err("no PLTE","Corrupt PNG"); - if (scan == STBI__SCAN_header) { - // header scan definitely stops at first IDAT - if (pal_img_n) - s->img_n = pal_img_n; - return 1; - } - if (c.length > (1u << 30)) return stbi__err("IDAT size limit", "IDAT section larger than 2^30 bytes"); - if ((int)(ioff + c.length) < (int)ioff) return 0; - if (ioff + c.length > idata_limit) { - stbi__uint32 idata_limit_old = idata_limit; - stbi_uc *p; - if (idata_limit == 0) idata_limit = c.length > 4096 ? c.length : 4096; - while (ioff + c.length > idata_limit) - idata_limit *= 2; - STBI_NOTUSED(idata_limit_old); - p = (stbi_uc *) STBI_REALLOC_SIZED(z->idata, idata_limit_old, idata_limit); if (p == NULL) return stbi__err("outofmem", "Out of memory"); - z->idata = p; - } - if (!stbi__getn(s, z->idata+ioff,c.length)) return stbi__err("outofdata","Corrupt PNG"); - ioff += c.length; - break; - } - - case STBI__PNG_TYPE('I','E','N','D'): { - stbi__uint32 raw_len, bpl; - if (first) return stbi__err("first not IHDR", "Corrupt PNG"); - if (scan != STBI__SCAN_load) return 1; - if (z->idata == NULL) return stbi__err("no IDAT","Corrupt PNG"); - // initial guess for decoded data size to avoid unnecessary reallocs - bpl = (s->img_x * z->depth + 7) / 8; // bytes per line, per component - raw_len = bpl * s->img_y * s->img_n /* pixels */ + s->img_y /* filter mode per row */; - z->expanded = (stbi_uc *) stbi_zlib_decode_malloc_guesssize_headerflag((char *) z->idata, ioff, raw_len, (int *) &raw_len, !is_iphone); - if (z->expanded == NULL) return 0; // zlib should set error - STBI_FREE(z->idata); z->idata = NULL; - if ((req_comp == s->img_n+1 && req_comp != 3 && !pal_img_n) || has_trans) - s->img_out_n = s->img_n+1; - else - s->img_out_n = s->img_n; - if (!stbi__create_png_image(z, z->expanded, raw_len, s->img_out_n, z->depth, color, interlace)) return 0; - if (has_trans) { - if (z->depth == 16) { - if (!stbi__compute_transparency16(z, tc16, s->img_out_n)) return 0; - } else { - if (!stbi__compute_transparency(z, tc, s->img_out_n)) return 0; - } - } - if (is_iphone && stbi__de_iphone_flag && s->img_out_n > 2) - stbi__de_iphone(z); - if (pal_img_n) { - // pal_img_n == 3 or 4 - s->img_n = pal_img_n; // record the actual colors we had - s->img_out_n = pal_img_n; - if (req_comp >= 3) s->img_out_n = req_comp; - if (!stbi__expand_png_palette(z, palette, pal_len, s->img_out_n)) - return 0; - } else if (has_trans) { - // non-paletted image with tRNS -> source image has (constant) alpha - ++s->img_n; - } - STBI_FREE(z->expanded); z->expanded = NULL; - // end of PNG chunk, read and skip CRC - stbi__get32be(s); - return 1; - } - - default: - // if critical, fail - if (first) return stbi__err("first not IHDR", "Corrupt PNG"); - if ((c.type & (1 << 29)) == 0) { - #ifndef STBI_NO_FAILURE_STRINGS - // not threadsafe - static char invalid_chunk[] = "XXXX PNG chunk not known"; - invalid_chunk[0] = STBI__BYTECAST(c.type >> 24); - invalid_chunk[1] = STBI__BYTECAST(c.type >> 16); - invalid_chunk[2] = STBI__BYTECAST(c.type >> 8); - invalid_chunk[3] = STBI__BYTECAST(c.type >> 0); - #endif - return stbi__err(invalid_chunk, "PNG not supported: unknown PNG chunk type"); - } - stbi__skip(s, c.length); - break; - } - // end of PNG chunk, read and skip CRC - stbi__get32be(s); - } -} - -static void *stbi__do_png(stbi__png *p, int *x, int *y, int *n, int req_comp, stbi__result_info *ri) -{ - void *result=NULL; - if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); - if (stbi__parse_png_file(p, STBI__SCAN_load, req_comp)) { - if (p->depth <= 8) - ri->bits_per_channel = 8; - else if (p->depth == 16) - ri->bits_per_channel = 16; - else - return stbi__errpuc("bad bits_per_channel", "PNG not supported: unsupported color depth"); - result = p->out; - p->out = NULL; - if (req_comp && req_comp != p->s->img_out_n) { - if (ri->bits_per_channel == 8) - result = stbi__convert_format((unsigned char *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); - else - result = stbi__convert_format16((stbi__uint16 *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); - p->s->img_out_n = req_comp; - if (result == NULL) return result; - } - *x = p->s->img_x; - *y = p->s->img_y; - if (n) *n = p->s->img_n; - } - STBI_FREE(p->out); p->out = NULL; - STBI_FREE(p->expanded); p->expanded = NULL; - STBI_FREE(p->idata); p->idata = NULL; - - return result; -} - -static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) -{ - stbi__png p; - p.s = s; - return stbi__do_png(&p, x,y,comp,req_comp, ri); -} - -static int stbi__png_test(stbi__context *s) -{ - int r; - r = stbi__check_png_header(s); - stbi__rewind(s); - return r; -} - -static int stbi__png_info_raw(stbi__png *p, int *x, int *y, int *comp) -{ - if (!stbi__parse_png_file(p, STBI__SCAN_header, 0)) { - stbi__rewind( p->s ); - return 0; - } - if (x) *x = p->s->img_x; - if (y) *y = p->s->img_y; - if (comp) *comp = p->s->img_n; - return 1; -} - -static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp) -{ - stbi__png p; - p.s = s; - return stbi__png_info_raw(&p, x, y, comp); -} - -static int stbi__png_is16(stbi__context *s) -{ - stbi__png p; - p.s = s; - if (!stbi__png_info_raw(&p, NULL, NULL, NULL)) - return 0; - if (p.depth != 16) { - stbi__rewind(p.s); - return 0; - } - return 1; -} -#endif - -// Microsoft/Windows BMP image - -#ifndef STBI_NO_BMP -static int stbi__bmp_test_raw(stbi__context *s) -{ - int r; - int sz; - if (stbi__get8(s) != 'B') return 0; - if (stbi__get8(s) != 'M') return 0; - stbi__get32le(s); // discard filesize - stbi__get16le(s); // discard reserved - stbi__get16le(s); // discard reserved - stbi__get32le(s); // discard data offset - sz = stbi__get32le(s); - r = (sz == 12 || sz == 40 || sz == 56 || sz == 108 || sz == 124); - return r; -} - -static int stbi__bmp_test(stbi__context *s) -{ - int r = stbi__bmp_test_raw(s); - stbi__rewind(s); - return r; -} - - -// returns 0..31 for the highest set bit -static int stbi__high_bit(unsigned int z) -{ - int n=0; - if (z == 0) return -1; - if (z >= 0x10000) { n += 16; z >>= 16; } - if (z >= 0x00100) { n += 8; z >>= 8; } - if (z >= 0x00010) { n += 4; z >>= 4; } - if (z >= 0x00004) { n += 2; z >>= 2; } - if (z >= 0x00002) { n += 1;/* >>= 1;*/ } - return n; -} - -static int stbi__bitcount(unsigned int a) -{ - a = (a & 0x55555555) + ((a >> 1) & 0x55555555); // max 2 - a = (a & 0x33333333) + ((a >> 2) & 0x33333333); // max 4 - a = (a + (a >> 4)) & 0x0f0f0f0f; // max 8 per 4, now 8 bits - a = (a + (a >> 8)); // max 16 per 8 bits - a = (a + (a >> 16)); // max 32 per 8 bits - return a & 0xff; -} - -// extract an arbitrarily-aligned N-bit value (N=bits) -// from v, and then make it 8-bits long and fractionally -// extend it to full full range. -static int stbi__shiftsigned(unsigned int v, int shift, int bits) -{ - static unsigned int mul_table[9] = { - 0, - 0xff/*0b11111111*/, 0x55/*0b01010101*/, 0x49/*0b01001001*/, 0x11/*0b00010001*/, - 0x21/*0b00100001*/, 0x41/*0b01000001*/, 0x81/*0b10000001*/, 0x01/*0b00000001*/, - }; - static unsigned int shift_table[9] = { - 0, 0,0,1,0,2,4,6,0, - }; - if (shift < 0) - v <<= -shift; - else - v >>= shift; - STBI_ASSERT(v < 256); - v >>= (8-bits); - STBI_ASSERT(bits >= 0 && bits <= 8); - return (int) ((unsigned) v * mul_table[bits]) >> shift_table[bits]; -} - -typedef struct -{ - int bpp, offset, hsz; - unsigned int mr,mg,mb,ma, all_a; - int extra_read; -} stbi__bmp_data; - -static int stbi__bmp_set_mask_defaults(stbi__bmp_data *info, int compress) -{ - // BI_BITFIELDS specifies masks explicitly, don't override - if (compress == 3) - return 1; - - if (compress == 0) { - if (info->bpp == 16) { - info->mr = 31u << 10; - info->mg = 31u << 5; - info->mb = 31u << 0; - } else if (info->bpp == 32) { - info->mr = 0xffu << 16; - info->mg = 0xffu << 8; - info->mb = 0xffu << 0; - info->ma = 0xffu << 24; - info->all_a = 0; // if all_a is 0 at end, then we loaded alpha channel but it was all 0 - } else { - // otherwise, use defaults, which is all-0 - info->mr = info->mg = info->mb = info->ma = 0; - } - return 1; - } - return 0; // error -} - -static void *stbi__bmp_parse_header(stbi__context *s, stbi__bmp_data *info) -{ - int hsz; - if (stbi__get8(s) != 'B' || stbi__get8(s) != 'M') return stbi__errpuc("not BMP", "Corrupt BMP"); - stbi__get32le(s); // discard filesize - stbi__get16le(s); // discard reserved - stbi__get16le(s); // discard reserved - info->offset = stbi__get32le(s); - info->hsz = hsz = stbi__get32le(s); - info->mr = info->mg = info->mb = info->ma = 0; - info->extra_read = 14; - - if (info->offset < 0) return stbi__errpuc("bad BMP", "bad BMP"); - - if (hsz != 12 && hsz != 40 && hsz != 56 && hsz != 108 && hsz != 124) return stbi__errpuc("unknown BMP", "BMP type not supported: unknown"); - if (hsz == 12) { - s->img_x = stbi__get16le(s); - s->img_y = stbi__get16le(s); - } else { - s->img_x = stbi__get32le(s); - s->img_y = stbi__get32le(s); - } - if (stbi__get16le(s) != 1) return stbi__errpuc("bad BMP", "bad BMP"); - info->bpp = stbi__get16le(s); - if (hsz != 12) { - int compress = stbi__get32le(s); - if (compress == 1 || compress == 2) return stbi__errpuc("BMP RLE", "BMP type not supported: RLE"); - if (compress >= 4) return stbi__errpuc("BMP JPEG/PNG", "BMP type not supported: unsupported compression"); // this includes PNG/JPEG modes - if (compress == 3 && info->bpp != 16 && info->bpp != 32) return stbi__errpuc("bad BMP", "bad BMP"); // bitfields requires 16 or 32 bits/pixel - stbi__get32le(s); // discard sizeof - stbi__get32le(s); // discard hres - stbi__get32le(s); // discard vres - stbi__get32le(s); // discard colorsused - stbi__get32le(s); // discard max important - if (hsz == 40 || hsz == 56) { - if (hsz == 56) { - stbi__get32le(s); - stbi__get32le(s); - stbi__get32le(s); - stbi__get32le(s); - } - if (info->bpp == 16 || info->bpp == 32) { - if (compress == 0) { - stbi__bmp_set_mask_defaults(info, compress); - } else if (compress == 3) { - info->mr = stbi__get32le(s); - info->mg = stbi__get32le(s); - info->mb = stbi__get32le(s); - info->extra_read += 12; - // not documented, but generated by photoshop and handled by mspaint - if (info->mr == info->mg && info->mg == info->mb) { - // ?!?!? - return stbi__errpuc("bad BMP", "bad BMP"); - } - } else - return stbi__errpuc("bad BMP", "bad BMP"); - } - } else { - // V4/V5 header - int i; - if (hsz != 108 && hsz != 124) - return stbi__errpuc("bad BMP", "bad BMP"); - info->mr = stbi__get32le(s); - info->mg = stbi__get32le(s); - info->mb = stbi__get32le(s); - info->ma = stbi__get32le(s); - if (compress != 3) // override mr/mg/mb unless in BI_BITFIELDS mode, as per docs - stbi__bmp_set_mask_defaults(info, compress); - stbi__get32le(s); // discard color space - for (i=0; i < 12; ++i) - stbi__get32le(s); // discard color space parameters - if (hsz == 124) { - stbi__get32le(s); // discard rendering intent - stbi__get32le(s); // discard offset of profile data - stbi__get32le(s); // discard size of profile data - stbi__get32le(s); // discard reserved - } - } - } - return (void *) 1; -} - - -static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) -{ - stbi_uc *out; - unsigned int mr=0,mg=0,mb=0,ma=0, all_a; - stbi_uc pal[256][4]; - int psize=0,i,j,width; - int flip_vertically, pad, target; - stbi__bmp_data info; - STBI_NOTUSED(ri); - - info.all_a = 255; - if (stbi__bmp_parse_header(s, &info) == NULL) - return NULL; // error code already set - - flip_vertically = ((int) s->img_y) > 0; - s->img_y = abs((int) s->img_y); - - if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); - if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); - - mr = info.mr; - mg = info.mg; - mb = info.mb; - ma = info.ma; - all_a = info.all_a; - - if (info.hsz == 12) { - if (info.bpp < 24) - psize = (info.offset - info.extra_read - 24) / 3; - } else { - if (info.bpp < 16) - psize = (info.offset - info.extra_read - info.hsz) >> 2; - } - if (psize == 0) { - // accept some number of extra bytes after the header, but if the offset points either to before - // the header ends or implies a large amount of extra data, reject the file as malformed - int bytes_read_so_far = s->callback_already_read + (int)(s->img_buffer - s->img_buffer_original); - int header_limit = 1024; // max we actually read is below 256 bytes currently. - int extra_data_limit = 256*4; // what ordinarily goes here is a palette; 256 entries*4 bytes is its max size. - if (bytes_read_so_far <= 0 || bytes_read_so_far > header_limit) { - return stbi__errpuc("bad header", "Corrupt BMP"); - } - // we established that bytes_read_so_far is positive and sensible. - // the first half of this test rejects offsets that are either too small positives, or - // negative, and guarantees that info.offset >= bytes_read_so_far > 0. this in turn - // ensures the number computed in the second half of the test can't overflow. - if (info.offset < bytes_read_so_far || info.offset - bytes_read_so_far > extra_data_limit) { - return stbi__errpuc("bad offset", "Corrupt BMP"); - } else { - stbi__skip(s, info.offset - bytes_read_so_far); - } - } - - if (info.bpp == 24 && ma == 0xff000000) - s->img_n = 3; - else - s->img_n = ma ? 4 : 3; - if (req_comp && req_comp >= 3) // we can directly decode 3 or 4 - target = req_comp; - else - target = s->img_n; // if they want monochrome, we'll post-convert - - // sanity-check size - if (!stbi__mad3sizes_valid(target, s->img_x, s->img_y, 0)) - return stbi__errpuc("too large", "Corrupt BMP"); - - out = (stbi_uc *) stbi__malloc_mad3(target, s->img_x, s->img_y, 0); - if (!out) return stbi__errpuc("outofmem", "Out of memory"); - if (info.bpp < 16) { - int z=0; - if (psize == 0 || psize > 256) { STBI_FREE(out); return stbi__errpuc("invalid", "Corrupt BMP"); } - for (i=0; i < psize; ++i) { - pal[i][2] = stbi__get8(s); - pal[i][1] = stbi__get8(s); - pal[i][0] = stbi__get8(s); - if (info.hsz != 12) stbi__get8(s); - pal[i][3] = 255; - } - stbi__skip(s, info.offset - info.extra_read - info.hsz - psize * (info.hsz == 12 ? 3 : 4)); - if (info.bpp == 1) width = (s->img_x + 7) >> 3; - else if (info.bpp == 4) width = (s->img_x + 1) >> 1; - else if (info.bpp == 8) width = s->img_x; - else { STBI_FREE(out); return stbi__errpuc("bad bpp", "Corrupt BMP"); } - pad = (-width)&3; - if (info.bpp == 1) { - for (j=0; j < (int) s->img_y; ++j) { - int bit_offset = 7, v = stbi__get8(s); - for (i=0; i < (int) s->img_x; ++i) { - int color = (v>>bit_offset)&0x1; - out[z++] = pal[color][0]; - out[z++] = pal[color][1]; - out[z++] = pal[color][2]; - if (target == 4) out[z++] = 255; - if (i+1 == (int) s->img_x) break; - if((--bit_offset) < 0) { - bit_offset = 7; - v = stbi__get8(s); - } - } - stbi__skip(s, pad); - } - } else { - for (j=0; j < (int) s->img_y; ++j) { - for (i=0; i < (int) s->img_x; i += 2) { - int v=stbi__get8(s),v2=0; - if (info.bpp == 4) { - v2 = v & 15; - v >>= 4; - } - out[z++] = pal[v][0]; - out[z++] = pal[v][1]; - out[z++] = pal[v][2]; - if (target == 4) out[z++] = 255; - if (i+1 == (int) s->img_x) break; - v = (info.bpp == 8) ? stbi__get8(s) : v2; - out[z++] = pal[v][0]; - out[z++] = pal[v][1]; - out[z++] = pal[v][2]; - if (target == 4) out[z++] = 255; - } - stbi__skip(s, pad); - } - } - } else { - int rshift=0,gshift=0,bshift=0,ashift=0,rcount=0,gcount=0,bcount=0,acount=0; - int z = 0; - int easy=0; - stbi__skip(s, info.offset - info.extra_read - info.hsz); - if (info.bpp == 24) width = 3 * s->img_x; - else if (info.bpp == 16) width = 2*s->img_x; - else /* bpp = 32 and pad = 0 */ width=0; - pad = (-width) & 3; - if (info.bpp == 24) { - easy = 1; - } else if (info.bpp == 32) { - if (mb == 0xff && mg == 0xff00 && mr == 0x00ff0000 && ma == 0xff000000) - easy = 2; - } - if (!easy) { - if (!mr || !mg || !mb) { STBI_FREE(out); return stbi__errpuc("bad masks", "Corrupt BMP"); } - // right shift amt to put high bit in position #7 - rshift = stbi__high_bit(mr)-7; rcount = stbi__bitcount(mr); - gshift = stbi__high_bit(mg)-7; gcount = stbi__bitcount(mg); - bshift = stbi__high_bit(mb)-7; bcount = stbi__bitcount(mb); - ashift = stbi__high_bit(ma)-7; acount = stbi__bitcount(ma); - if (rcount > 8 || gcount > 8 || bcount > 8 || acount > 8) { STBI_FREE(out); return stbi__errpuc("bad masks", "Corrupt BMP"); } - } - for (j=0; j < (int) s->img_y; ++j) { - if (easy) { - for (i=0; i < (int) s->img_x; ++i) { - unsigned char a; - out[z+2] = stbi__get8(s); - out[z+1] = stbi__get8(s); - out[z+0] = stbi__get8(s); - z += 3; - a = (easy == 2 ? stbi__get8(s) : 255); - all_a |= a; - if (target == 4) out[z++] = a; - } - } else { - int bpp = info.bpp; - for (i=0; i < (int) s->img_x; ++i) { - stbi__uint32 v = (bpp == 16 ? (stbi__uint32) stbi__get16le(s) : stbi__get32le(s)); - unsigned int a; - out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mr, rshift, rcount)); - out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mg, gshift, gcount)); - out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mb, bshift, bcount)); - a = (ma ? stbi__shiftsigned(v & ma, ashift, acount) : 255); - all_a |= a; - if (target == 4) out[z++] = STBI__BYTECAST(a); - } - } - stbi__skip(s, pad); - } - } - - // if alpha channel is all 0s, replace with all 255s - if (target == 4 && all_a == 0) - for (i=4*s->img_x*s->img_y-1; i >= 0; i -= 4) - out[i] = 255; - - if (flip_vertically) { - stbi_uc t; - for (j=0; j < (int) s->img_y>>1; ++j) { - stbi_uc *p1 = out + j *s->img_x*target; - stbi_uc *p2 = out + (s->img_y-1-j)*s->img_x*target; - for (i=0; i < (int) s->img_x*target; ++i) { - t = p1[i]; p1[i] = p2[i]; p2[i] = t; - } - } - } - - if (req_comp && req_comp != target) { - out = stbi__convert_format(out, target, req_comp, s->img_x, s->img_y); - if (out == NULL) return out; // stbi__convert_format frees input on failure - } - - *x = s->img_x; - *y = s->img_y; - if (comp) *comp = s->img_n; - return out; -} -#endif - -// Targa Truevision - TGA -// by Jonathan Dummer -#ifndef STBI_NO_TGA -// returns STBI_rgb or whatever, 0 on error -static int stbi__tga_get_comp(int bits_per_pixel, int is_grey, int* is_rgb16) -{ - // only RGB or RGBA (incl. 16bit) or grey allowed - if (is_rgb16) *is_rgb16 = 0; - switch(bits_per_pixel) { - case 8: return STBI_grey; - case 16: if(is_grey) return STBI_grey_alpha; - // fallthrough - case 15: if(is_rgb16) *is_rgb16 = 1; - return STBI_rgb; - case 24: // fallthrough - case 32: return bits_per_pixel/8; - default: return 0; - } -} - -static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp) -{ - int tga_w, tga_h, tga_comp, tga_image_type, tga_bits_per_pixel, tga_colormap_bpp; - int sz, tga_colormap_type; - stbi__get8(s); // discard Offset - tga_colormap_type = stbi__get8(s); // colormap type - if( tga_colormap_type > 1 ) { - stbi__rewind(s); - return 0; // only RGB or indexed allowed - } - tga_image_type = stbi__get8(s); // image type - if ( tga_colormap_type == 1 ) { // colormapped (paletted) image - if (tga_image_type != 1 && tga_image_type != 9) { - stbi__rewind(s); - return 0; - } - stbi__skip(s,4); // skip index of first colormap entry and number of entries - sz = stbi__get8(s); // check bits per palette color entry - if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) { - stbi__rewind(s); - return 0; - } - stbi__skip(s,4); // skip image x and y origin - tga_colormap_bpp = sz; - } else { // "normal" image w/o colormap - only RGB or grey allowed, +/- RLE - if ( (tga_image_type != 2) && (tga_image_type != 3) && (tga_image_type != 10) && (tga_image_type != 11) ) { - stbi__rewind(s); - return 0; // only RGB or grey allowed, +/- RLE - } - stbi__skip(s,9); // skip colormap specification and image x/y origin - tga_colormap_bpp = 0; - } - tga_w = stbi__get16le(s); - if( tga_w < 1 ) { - stbi__rewind(s); - return 0; // test width - } - tga_h = stbi__get16le(s); - if( tga_h < 1 ) { - stbi__rewind(s); - return 0; // test height - } - tga_bits_per_pixel = stbi__get8(s); // bits per pixel - stbi__get8(s); // ignore alpha bits - if (tga_colormap_bpp != 0) { - if((tga_bits_per_pixel != 8) && (tga_bits_per_pixel != 16)) { - // when using a colormap, tga_bits_per_pixel is the size of the indexes - // I don't think anything but 8 or 16bit indexes makes sense - stbi__rewind(s); - return 0; - } - tga_comp = stbi__tga_get_comp(tga_colormap_bpp, 0, NULL); - } else { - tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3) || (tga_image_type == 11), NULL); - } - if(!tga_comp) { - stbi__rewind(s); - return 0; - } - if (x) *x = tga_w; - if (y) *y = tga_h; - if (comp) *comp = tga_comp; - return 1; // seems to have passed everything -} - -static int stbi__tga_test(stbi__context *s) -{ - int res = 0; - int sz, tga_color_type; - stbi__get8(s); // discard Offset - tga_color_type = stbi__get8(s); // color type - if ( tga_color_type > 1 ) goto errorEnd; // only RGB or indexed allowed - sz = stbi__get8(s); // image type - if ( tga_color_type == 1 ) { // colormapped (paletted) image - if (sz != 1 && sz != 9) goto errorEnd; // colortype 1 demands image type 1 or 9 - stbi__skip(s,4); // skip index of first colormap entry and number of entries - sz = stbi__get8(s); // check bits per palette color entry - if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd; - stbi__skip(s,4); // skip image x and y origin - } else { // "normal" image w/o colormap - if ( (sz != 2) && (sz != 3) && (sz != 10) && (sz != 11) ) goto errorEnd; // only RGB or grey allowed, +/- RLE - stbi__skip(s,9); // skip colormap specification and image x/y origin - } - if ( stbi__get16le(s) < 1 ) goto errorEnd; // test width - if ( stbi__get16le(s) < 1 ) goto errorEnd; // test height - sz = stbi__get8(s); // bits per pixel - if ( (tga_color_type == 1) && (sz != 8) && (sz != 16) ) goto errorEnd; // for colormapped images, bpp is size of an index - if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd; - - res = 1; // if we got this far, everything's good and we can return 1 instead of 0 - -errorEnd: - stbi__rewind(s); - return res; -} - -// read 16bit value and convert to 24bit RGB -static void stbi__tga_read_rgb16(stbi__context *s, stbi_uc* out) -{ - stbi__uint16 px = (stbi__uint16)stbi__get16le(s); - stbi__uint16 fiveBitMask = 31; - // we have 3 channels with 5bits each - int r = (px >> 10) & fiveBitMask; - int g = (px >> 5) & fiveBitMask; - int b = px & fiveBitMask; - // Note that this saves the data in RGB(A) order, so it doesn't need to be swapped later - out[0] = (stbi_uc)((r * 255)/31); - out[1] = (stbi_uc)((g * 255)/31); - out[2] = (stbi_uc)((b * 255)/31); - - // some people claim that the most significant bit might be used for alpha - // (possibly if an alpha-bit is set in the "image descriptor byte") - // but that only made 16bit test images completely translucent.. - // so let's treat all 15 and 16bit TGAs as RGB with no alpha. -} - -static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) -{ - // read in the TGA header stuff - int tga_offset = stbi__get8(s); - int tga_indexed = stbi__get8(s); - int tga_image_type = stbi__get8(s); - int tga_is_RLE = 0; - int tga_palette_start = stbi__get16le(s); - int tga_palette_len = stbi__get16le(s); - int tga_palette_bits = stbi__get8(s); - int tga_x_origin = stbi__get16le(s); - int tga_y_origin = stbi__get16le(s); - int tga_width = stbi__get16le(s); - int tga_height = stbi__get16le(s); - int tga_bits_per_pixel = stbi__get8(s); - int tga_comp, tga_rgb16=0; - int tga_inverted = stbi__get8(s); - // int tga_alpha_bits = tga_inverted & 15; // the 4 lowest bits - unused (useless?) - // image data - unsigned char *tga_data; - unsigned char *tga_palette = NULL; - int i, j; - unsigned char raw_data[4] = {0}; - int RLE_count = 0; - int RLE_repeating = 0; - int read_next_pixel = 1; - STBI_NOTUSED(ri); - STBI_NOTUSED(tga_x_origin); // @TODO - STBI_NOTUSED(tga_y_origin); // @TODO - - if (tga_height > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); - if (tga_width > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); - - // do a tiny bit of precessing - if ( tga_image_type >= 8 ) - { - tga_image_type -= 8; - tga_is_RLE = 1; - } - tga_inverted = 1 - ((tga_inverted >> 5) & 1); - - // If I'm paletted, then I'll use the number of bits from the palette - if ( tga_indexed ) tga_comp = stbi__tga_get_comp(tga_palette_bits, 0, &tga_rgb16); - else tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3), &tga_rgb16); - - if(!tga_comp) // shouldn't really happen, stbi__tga_test() should have ensured basic consistency - return stbi__errpuc("bad format", "Can't find out TGA pixelformat"); - - // tga info - *x = tga_width; - *y = tga_height; - if (comp) *comp = tga_comp; - - if (!stbi__mad3sizes_valid(tga_width, tga_height, tga_comp, 0)) - return stbi__errpuc("too large", "Corrupt TGA"); - - tga_data = (unsigned char*)stbi__malloc_mad3(tga_width, tga_height, tga_comp, 0); - if (!tga_data) return stbi__errpuc("outofmem", "Out of memory"); - - // skip to the data's starting position (offset usually = 0) - stbi__skip(s, tga_offset ); - - if ( !tga_indexed && !tga_is_RLE && !tga_rgb16 ) { - for (i=0; i < tga_height; ++i) { - int row = tga_inverted ? tga_height -i - 1 : i; - stbi_uc *tga_row = tga_data + row*tga_width*tga_comp; - stbi__getn(s, tga_row, tga_width * tga_comp); - } - } else { - // do I need to load a palette? - if ( tga_indexed) - { - if (tga_palette_len == 0) { /* you have to have at least one entry! */ - STBI_FREE(tga_data); - return stbi__errpuc("bad palette", "Corrupt TGA"); - } - - // any data to skip? (offset usually = 0) - stbi__skip(s, tga_palette_start ); - // load the palette - tga_palette = (unsigned char*)stbi__malloc_mad2(tga_palette_len, tga_comp, 0); - if (!tga_palette) { - STBI_FREE(tga_data); - return stbi__errpuc("outofmem", "Out of memory"); - } - if (tga_rgb16) { - stbi_uc *pal_entry = tga_palette; - STBI_ASSERT(tga_comp == STBI_rgb); - for (i=0; i < tga_palette_len; ++i) { - stbi__tga_read_rgb16(s, pal_entry); - pal_entry += tga_comp; - } - } else if (!stbi__getn(s, tga_palette, tga_palette_len * tga_comp)) { - STBI_FREE(tga_data); - STBI_FREE(tga_palette); - return stbi__errpuc("bad palette", "Corrupt TGA"); - } - } - // load the data - for (i=0; i < tga_width * tga_height; ++i) - { - // if I'm in RLE mode, do I need to get a RLE stbi__pngchunk? - if ( tga_is_RLE ) - { - if ( RLE_count == 0 ) - { - // yep, get the next byte as a RLE command - int RLE_cmd = stbi__get8(s); - RLE_count = 1 + (RLE_cmd & 127); - RLE_repeating = RLE_cmd >> 7; - read_next_pixel = 1; - } else if ( !RLE_repeating ) - { - read_next_pixel = 1; - } - } else - { - read_next_pixel = 1; - } - // OK, if I need to read a pixel, do it now - if ( read_next_pixel ) - { - // load however much data we did have - if ( tga_indexed ) - { - // read in index, then perform the lookup - int pal_idx = (tga_bits_per_pixel == 8) ? stbi__get8(s) : stbi__get16le(s); - if ( pal_idx >= tga_palette_len ) { - // invalid index - pal_idx = 0; - } - pal_idx *= tga_comp; - for (j = 0; j < tga_comp; ++j) { - raw_data[j] = tga_palette[pal_idx+j]; - } - } else if(tga_rgb16) { - STBI_ASSERT(tga_comp == STBI_rgb); - stbi__tga_read_rgb16(s, raw_data); - } else { - // read in the data raw - for (j = 0; j < tga_comp; ++j) { - raw_data[j] = stbi__get8(s); - } - } - // clear the reading flag for the next pixel - read_next_pixel = 0; - } // end of reading a pixel - - // copy data - for (j = 0; j < tga_comp; ++j) - tga_data[i*tga_comp+j] = raw_data[j]; - - // in case we're in RLE mode, keep counting down - --RLE_count; - } - // do I need to invert the image? - if ( tga_inverted ) - { - for (j = 0; j*2 < tga_height; ++j) - { - int index1 = j * tga_width * tga_comp; - int index2 = (tga_height - 1 - j) * tga_width * tga_comp; - for (i = tga_width * tga_comp; i > 0; --i) - { - unsigned char temp = tga_data[index1]; - tga_data[index1] = tga_data[index2]; - tga_data[index2] = temp; - ++index1; - ++index2; - } - } - } - // clear my palette, if I had one - if ( tga_palette != NULL ) - { - STBI_FREE( tga_palette ); - } - } - - // swap RGB - if the source data was RGB16, it already is in the right order - if (tga_comp >= 3 && !tga_rgb16) - { - unsigned char* tga_pixel = tga_data; - for (i=0; i < tga_width * tga_height; ++i) - { - unsigned char temp = tga_pixel[0]; - tga_pixel[0] = tga_pixel[2]; - tga_pixel[2] = temp; - tga_pixel += tga_comp; - } - } - - // convert to target component count - if (req_comp && req_comp != tga_comp) - tga_data = stbi__convert_format(tga_data, tga_comp, req_comp, tga_width, tga_height); - - // the things I do to get rid of an error message, and yet keep - // Microsoft's C compilers happy... [8^( - tga_palette_start = tga_palette_len = tga_palette_bits = - tga_x_origin = tga_y_origin = 0; - STBI_NOTUSED(tga_palette_start); - // OK, done - return tga_data; -} -#endif - -// ************************************************************************************************* -// Photoshop PSD loader -- PD by Thatcher Ulrich, integration by Nicolas Schulz, tweaked by STB - -#ifndef STBI_NO_PSD -static int stbi__psd_test(stbi__context *s) -{ - int r = (stbi__get32be(s) == 0x38425053); - stbi__rewind(s); - return r; -} - -static int stbi__psd_decode_rle(stbi__context *s, stbi_uc *p, int pixelCount) -{ - int count, nleft, len; - - count = 0; - while ((nleft = pixelCount - count) > 0) { - len = stbi__get8(s); - if (len == 128) { - // No-op. - } else if (len < 128) { - // Copy next len+1 bytes literally. - len++; - if (len > nleft) return 0; // corrupt data - count += len; - while (len) { - *p = stbi__get8(s); - p += 4; - len--; - } - } else if (len > 128) { - stbi_uc val; - // Next -len+1 bytes in the dest are replicated from next source byte. - // (Interpret len as a negative 8-bit int.) - len = 257 - len; - if (len > nleft) return 0; // corrupt data - val = stbi__get8(s); - count += len; - while (len) { - *p = val; - p += 4; - len--; - } - } - } - - return 1; -} - -static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc) -{ - int pixelCount; - int channelCount, compression; - int channel, i; - int bitdepth; - int w,h; - stbi_uc *out; - STBI_NOTUSED(ri); - - // Check identifier - if (stbi__get32be(s) != 0x38425053) // "8BPS" - return stbi__errpuc("not PSD", "Corrupt PSD image"); - - // Check file type version. - if (stbi__get16be(s) != 1) - return stbi__errpuc("wrong version", "Unsupported version of PSD image"); - - // Skip 6 reserved bytes. - stbi__skip(s, 6 ); - - // Read the number of channels (R, G, B, A, etc). - channelCount = stbi__get16be(s); - if (channelCount < 0 || channelCount > 16) - return stbi__errpuc("wrong channel count", "Unsupported number of channels in PSD image"); - - // Read the rows and columns of the image. - h = stbi__get32be(s); - w = stbi__get32be(s); - - if (h > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); - if (w > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); - - // Make sure the depth is 8 bits. - bitdepth = stbi__get16be(s); - if (bitdepth != 8 && bitdepth != 16) - return stbi__errpuc("unsupported bit depth", "PSD bit depth is not 8 or 16 bit"); - - // Make sure the color mode is RGB. - // Valid options are: - // 0: Bitmap - // 1: Grayscale - // 2: Indexed color - // 3: RGB color - // 4: CMYK color - // 7: Multichannel - // 8: Duotone - // 9: Lab color - if (stbi__get16be(s) != 3) - return stbi__errpuc("wrong color format", "PSD is not in RGB color format"); - - // Skip the Mode Data. (It's the palette for indexed color; other info for other modes.) - stbi__skip(s,stbi__get32be(s) ); - - // Skip the image resources. (resolution, pen tool paths, etc) - stbi__skip(s, stbi__get32be(s) ); - - // Skip the reserved data. - stbi__skip(s, stbi__get32be(s) ); - - // Find out if the data is compressed. - // Known values: - // 0: no compression - // 1: RLE compressed - compression = stbi__get16be(s); - if (compression > 1) - return stbi__errpuc("bad compression", "PSD has an unknown compression format"); - - // Check size - if (!stbi__mad3sizes_valid(4, w, h, 0)) - return stbi__errpuc("too large", "Corrupt PSD"); - - // Create the destination image. - - if (!compression && bitdepth == 16 && bpc == 16) { - out = (stbi_uc *) stbi__malloc_mad3(8, w, h, 0); - ri->bits_per_channel = 16; - } else - out = (stbi_uc *) stbi__malloc(4 * w*h); - - if (!out) return stbi__errpuc("outofmem", "Out of memory"); - pixelCount = w*h; - - // Initialize the data to zero. - //memset( out, 0, pixelCount * 4 ); - - // Finally, the image data. - if (compression) { - // RLE as used by .PSD and .TIFF - // Loop until you get the number of unpacked bytes you are expecting: - // Read the next source byte into n. - // If n is between 0 and 127 inclusive, copy the next n+1 bytes literally. - // Else if n is between -127 and -1 inclusive, copy the next byte -n+1 times. - // Else if n is 128, noop. - // Endloop - - // The RLE-compressed data is preceded by a 2-byte data count for each row in the data, - // which we're going to just skip. - stbi__skip(s, h * channelCount * 2 ); - - // Read the RLE data by channel. - for (channel = 0; channel < 4; channel++) { - stbi_uc *p; - - p = out+channel; - if (channel >= channelCount) { - // Fill this channel with default data. - for (i = 0; i < pixelCount; i++, p += 4) - *p = (channel == 3 ? 255 : 0); - } else { - // Read the RLE data. - if (!stbi__psd_decode_rle(s, p, pixelCount)) { - STBI_FREE(out); - return stbi__errpuc("corrupt", "bad RLE data"); - } - } - } - - } else { - // We're at the raw image data. It's each channel in order (Red, Green, Blue, Alpha, ...) - // where each channel consists of an 8-bit (or 16-bit) value for each pixel in the image. - - // Read the data by channel. - for (channel = 0; channel < 4; channel++) { - if (channel >= channelCount) { - // Fill this channel with default data. - if (bitdepth == 16 && bpc == 16) { - stbi__uint16 *q = ((stbi__uint16 *) out) + channel; - stbi__uint16 val = channel == 3 ? 65535 : 0; - for (i = 0; i < pixelCount; i++, q += 4) - *q = val; - } else { - stbi_uc *p = out+channel; - stbi_uc val = channel == 3 ? 255 : 0; - for (i = 0; i < pixelCount; i++, p += 4) - *p = val; - } - } else { - if (ri->bits_per_channel == 16) { // output bpc - stbi__uint16 *q = ((stbi__uint16 *) out) + channel; - for (i = 0; i < pixelCount; i++, q += 4) - *q = (stbi__uint16) stbi__get16be(s); - } else { - stbi_uc *p = out+channel; - if (bitdepth == 16) { // input bpc - for (i = 0; i < pixelCount; i++, p += 4) - *p = (stbi_uc) (stbi__get16be(s) >> 8); - } else { - for (i = 0; i < pixelCount; i++, p += 4) - *p = stbi__get8(s); - } - } - } - } - } - - // remove weird white matte from PSD - if (channelCount >= 4) { - if (ri->bits_per_channel == 16) { - for (i=0; i < w*h; ++i) { - stbi__uint16 *pixel = (stbi__uint16 *) out + 4*i; - if (pixel[3] != 0 && pixel[3] != 65535) { - float a = pixel[3] / 65535.0f; - float ra = 1.0f / a; - float inv_a = 65535.0f * (1 - ra); - pixel[0] = (stbi__uint16) (pixel[0]*ra + inv_a); - pixel[1] = (stbi__uint16) (pixel[1]*ra + inv_a); - pixel[2] = (stbi__uint16) (pixel[2]*ra + inv_a); - } - } - } else { - for (i=0; i < w*h; ++i) { - unsigned char *pixel = out + 4*i; - if (pixel[3] != 0 && pixel[3] != 255) { - float a = pixel[3] / 255.0f; - float ra = 1.0f / a; - float inv_a = 255.0f * (1 - ra); - pixel[0] = (unsigned char) (pixel[0]*ra + inv_a); - pixel[1] = (unsigned char) (pixel[1]*ra + inv_a); - pixel[2] = (unsigned char) (pixel[2]*ra + inv_a); - } - } - } - } - - // convert to desired output format - if (req_comp && req_comp != 4) { - if (ri->bits_per_channel == 16) - out = (stbi_uc *) stbi__convert_format16((stbi__uint16 *) out, 4, req_comp, w, h); - else - out = stbi__convert_format(out, 4, req_comp, w, h); - if (out == NULL) return out; // stbi__convert_format frees input on failure - } - - if (comp) *comp = 4; - *y = h; - *x = w; - - return out; -} -#endif - -// ************************************************************************************************* -// Softimage PIC loader -// by Tom Seddon -// -// See http://softimage.wiki.softimage.com/index.php/INFO:_PIC_file_format -// See http://ozviz.wasp.uwa.edu.au/~pbourke/dataformats/softimagepic/ - -#ifndef STBI_NO_PIC -static int stbi__pic_is4(stbi__context *s,const char *str) -{ - int i; - for (i=0; i<4; ++i) - if (stbi__get8(s) != (stbi_uc)str[i]) - return 0; - - return 1; -} - -static int stbi__pic_test_core(stbi__context *s) -{ - int i; - - if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) - return 0; - - for(i=0;i<84;++i) - stbi__get8(s); - - if (!stbi__pic_is4(s,"PICT")) - return 0; - - return 1; -} - -typedef struct -{ - stbi_uc size,type,channel; -} stbi__pic_packet; - -static stbi_uc *stbi__readval(stbi__context *s, int channel, stbi_uc *dest) -{ - int mask=0x80, i; - - for (i=0; i<4; ++i, mask>>=1) { - if (channel & mask) { - if (stbi__at_eof(s)) return stbi__errpuc("bad file","PIC file too short"); - dest[i]=stbi__get8(s); - } - } - - return dest; -} - -static void stbi__copyval(int channel,stbi_uc *dest,const stbi_uc *src) -{ - int mask=0x80,i; - - for (i=0;i<4; ++i, mask>>=1) - if (channel&mask) - dest[i]=src[i]; -} - -static stbi_uc *stbi__pic_load_core(stbi__context *s,int width,int height,int *comp, stbi_uc *result) -{ - int act_comp=0,num_packets=0,y,chained; - stbi__pic_packet packets[10]; - - // this will (should...) cater for even some bizarre stuff like having data - // for the same channel in multiple packets. - do { - stbi__pic_packet *packet; - - if (num_packets==sizeof(packets)/sizeof(packets[0])) - return stbi__errpuc("bad format","too many packets"); - - packet = &packets[num_packets++]; - - chained = stbi__get8(s); - packet->size = stbi__get8(s); - packet->type = stbi__get8(s); - packet->channel = stbi__get8(s); - - act_comp |= packet->channel; - - if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (reading packets)"); - if (packet->size != 8) return stbi__errpuc("bad format","packet isn't 8bpp"); - } while (chained); - - *comp = (act_comp & 0x10 ? 4 : 3); // has alpha channel? - - for(y=0; ytype) { - default: - return stbi__errpuc("bad format","packet has bad compression type"); - - case 0: {//uncompressed - int x; - - for(x=0;xchannel,dest)) - return 0; - break; - } - - case 1://Pure RLE - { - int left=width, i; - - while (left>0) { - stbi_uc count,value[4]; - - count=stbi__get8(s); - if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pure read count)"); - - if (count > left) - count = (stbi_uc) left; - - if (!stbi__readval(s,packet->channel,value)) return 0; - - for(i=0; ichannel,dest,value); - left -= count; - } - } - break; - - case 2: {//Mixed RLE - int left=width; - while (left>0) { - int count = stbi__get8(s), i; - if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (mixed read count)"); - - if (count >= 128) { // Repeated - stbi_uc value[4]; - - if (count==128) - count = stbi__get16be(s); - else - count -= 127; - if (count > left) - return stbi__errpuc("bad file","scanline overrun"); - - if (!stbi__readval(s,packet->channel,value)) - return 0; - - for(i=0;ichannel,dest,value); - } else { // Raw - ++count; - if (count>left) return stbi__errpuc("bad file","scanline overrun"); - - for(i=0;ichannel,dest)) - return 0; - } - left-=count; - } - break; - } - } - } - } - - return result; -} - -static void *stbi__pic_load(stbi__context *s,int *px,int *py,int *comp,int req_comp, stbi__result_info *ri) -{ - stbi_uc *result; - int i, x,y, internal_comp; - STBI_NOTUSED(ri); - - if (!comp) comp = &internal_comp; - - for (i=0; i<92; ++i) - stbi__get8(s); - - x = stbi__get16be(s); - y = stbi__get16be(s); - - if (y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); - if (x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); - - if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pic header)"); - if (!stbi__mad3sizes_valid(x, y, 4, 0)) return stbi__errpuc("too large", "PIC image too large to decode"); - - stbi__get32be(s); //skip `ratio' - stbi__get16be(s); //skip `fields' - stbi__get16be(s); //skip `pad' - - // intermediate buffer is RGBA - result = (stbi_uc *) stbi__malloc_mad3(x, y, 4, 0); - if (!result) return stbi__errpuc("outofmem", "Out of memory"); - memset(result, 0xff, x*y*4); - - if (!stbi__pic_load_core(s,x,y,comp, result)) { - STBI_FREE(result); - result=0; - } - *px = x; - *py = y; - if (req_comp == 0) req_comp = *comp; - result=stbi__convert_format(result,4,req_comp,x,y); - - return result; -} - -static int stbi__pic_test(stbi__context *s) -{ - int r = stbi__pic_test_core(s); - stbi__rewind(s); - return r; -} -#endif - -// ************************************************************************************************* -// GIF loader -- public domain by Jean-Marc Lienher -- simplified/shrunk by stb - -#ifndef STBI_NO_GIF -typedef struct -{ - stbi__int16 prefix; - stbi_uc first; - stbi_uc suffix; -} stbi__gif_lzw; - -typedef struct -{ - int w,h; - stbi_uc *out; // output buffer (always 4 components) - stbi_uc *background; // The current "background" as far as a gif is concerned - stbi_uc *history; - int flags, bgindex, ratio, transparent, eflags; - stbi_uc pal[256][4]; - stbi_uc lpal[256][4]; - stbi__gif_lzw codes[8192]; - stbi_uc *color_table; - int parse, step; - int lflags; - int start_x, start_y; - int max_x, max_y; - int cur_x, cur_y; - int line_size; - int delay; -} stbi__gif; - -static int stbi__gif_test_raw(stbi__context *s) -{ - int sz; - if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') return 0; - sz = stbi__get8(s); - if (sz != '9' && sz != '7') return 0; - if (stbi__get8(s) != 'a') return 0; - return 1; -} - -static int stbi__gif_test(stbi__context *s) -{ - int r = stbi__gif_test_raw(s); - stbi__rewind(s); - return r; -} - -static void stbi__gif_parse_colortable(stbi__context *s, stbi_uc pal[256][4], int num_entries, int transp) -{ - int i; - for (i=0; i < num_entries; ++i) { - pal[i][2] = stbi__get8(s); - pal[i][1] = stbi__get8(s); - pal[i][0] = stbi__get8(s); - pal[i][3] = transp == i ? 0 : 255; - } -} - -static int stbi__gif_header(stbi__context *s, stbi__gif *g, int *comp, int is_info) -{ - stbi_uc version; - if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') - return stbi__err("not GIF", "Corrupt GIF"); - - version = stbi__get8(s); - if (version != '7' && version != '9') return stbi__err("not GIF", "Corrupt GIF"); - if (stbi__get8(s) != 'a') return stbi__err("not GIF", "Corrupt GIF"); - - stbi__g_failure_reason = ""; - g->w = stbi__get16le(s); - g->h = stbi__get16le(s); - g->flags = stbi__get8(s); - g->bgindex = stbi__get8(s); - g->ratio = stbi__get8(s); - g->transparent = -1; - - if (g->w > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); - if (g->h > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); - - if (comp != 0) *comp = 4; // can't actually tell whether it's 3 or 4 until we parse the comments - - if (is_info) return 1; - - if (g->flags & 0x80) - stbi__gif_parse_colortable(s,g->pal, 2 << (g->flags & 7), -1); - - return 1; -} - -static int stbi__gif_info_raw(stbi__context *s, int *x, int *y, int *comp) -{ - stbi__gif* g = (stbi__gif*) stbi__malloc(sizeof(stbi__gif)); - if (!g) return stbi__err("outofmem", "Out of memory"); - if (!stbi__gif_header(s, g, comp, 1)) { - STBI_FREE(g); - stbi__rewind( s ); - return 0; - } - if (x) *x = g->w; - if (y) *y = g->h; - STBI_FREE(g); - return 1; -} - -static void stbi__out_gif_code(stbi__gif *g, stbi__uint16 code) -{ - stbi_uc *p, *c; - int idx; - - // recurse to decode the prefixes, since the linked-list is backwards, - // and working backwards through an interleaved image would be nasty - if (g->codes[code].prefix >= 0) - stbi__out_gif_code(g, g->codes[code].prefix); - - if (g->cur_y >= g->max_y) return; - - idx = g->cur_x + g->cur_y; - p = &g->out[idx]; - g->history[idx / 4] = 1; - - c = &g->color_table[g->codes[code].suffix * 4]; - if (c[3] > 128) { // don't render transparent pixels; - p[0] = c[2]; - p[1] = c[1]; - p[2] = c[0]; - p[3] = c[3]; - } - g->cur_x += 4; - - if (g->cur_x >= g->max_x) { - g->cur_x = g->start_x; - g->cur_y += g->step; - - while (g->cur_y >= g->max_y && g->parse > 0) { - g->step = (1 << g->parse) * g->line_size; - g->cur_y = g->start_y + (g->step >> 1); - --g->parse; - } - } -} - -static stbi_uc *stbi__process_gif_raster(stbi__context *s, stbi__gif *g) -{ - stbi_uc lzw_cs; - stbi__int32 len, init_code; - stbi__uint32 first; - stbi__int32 codesize, codemask, avail, oldcode, bits, valid_bits, clear; - stbi__gif_lzw *p; - - lzw_cs = stbi__get8(s); - if (lzw_cs > 12) return NULL; - clear = 1 << lzw_cs; - first = 1; - codesize = lzw_cs + 1; - codemask = (1 << codesize) - 1; - bits = 0; - valid_bits = 0; - for (init_code = 0; init_code < clear; init_code++) { - g->codes[init_code].prefix = -1; - g->codes[init_code].first = (stbi_uc) init_code; - g->codes[init_code].suffix = (stbi_uc) init_code; - } - - // support no starting clear code - avail = clear+2; - oldcode = -1; - - len = 0; - for(;;) { - if (valid_bits < codesize) { - if (len == 0) { - len = stbi__get8(s); // start new block - if (len == 0) - return g->out; - } - --len; - bits |= (stbi__int32) stbi__get8(s) << valid_bits; - valid_bits += 8; - } else { - stbi__int32 code = bits & codemask; - bits >>= codesize; - valid_bits -= codesize; - // @OPTIMIZE: is there some way we can accelerate the non-clear path? - if (code == clear) { // clear code - codesize = lzw_cs + 1; - codemask = (1 << codesize) - 1; - avail = clear + 2; - oldcode = -1; - first = 0; - } else if (code == clear + 1) { // end of stream code - stbi__skip(s, len); - while ((len = stbi__get8(s)) > 0) - stbi__skip(s,len); - return g->out; - } else if (code <= avail) { - if (first) { - return stbi__errpuc("no clear code", "Corrupt GIF"); - } - - if (oldcode >= 0) { - p = &g->codes[avail++]; - if (avail > 8192) { - return stbi__errpuc("too many codes", "Corrupt GIF"); - } - - p->prefix = (stbi__int16) oldcode; - p->first = g->codes[oldcode].first; - p->suffix = (code == avail) ? p->first : g->codes[code].first; - } else if (code == avail) - return stbi__errpuc("illegal code in raster", "Corrupt GIF"); - - stbi__out_gif_code(g, (stbi__uint16) code); - - if ((avail & codemask) == 0 && avail <= 0x0FFF) { - codesize++; - codemask = (1 << codesize) - 1; - } - - oldcode = code; - } else { - return stbi__errpuc("illegal code in raster", "Corrupt GIF"); - } - } - } -} - -// this function is designed to support animated gifs, although stb_image doesn't support it -// two back is the image from two frames ago, used for a very specific disposal format -static stbi_uc *stbi__gif_load_next(stbi__context *s, stbi__gif *g, int *comp, int req_comp, stbi_uc *two_back) -{ - int dispose; - int first_frame; - int pi; - int pcount; - STBI_NOTUSED(req_comp); - - // on first frame, any non-written pixels get the background colour (non-transparent) - first_frame = 0; - if (g->out == 0) { - if (!stbi__gif_header(s, g, comp,0)) return 0; // stbi__g_failure_reason set by stbi__gif_header - if (!stbi__mad3sizes_valid(4, g->w, g->h, 0)) - return stbi__errpuc("too large", "GIF image is too large"); - pcount = g->w * g->h; - g->out = (stbi_uc *) stbi__malloc(4 * pcount); - g->background = (stbi_uc *) stbi__malloc(4 * pcount); - g->history = (stbi_uc *) stbi__malloc(pcount); - if (!g->out || !g->background || !g->history) - return stbi__errpuc("outofmem", "Out of memory"); - - // image is treated as "transparent" at the start - ie, nothing overwrites the current background; - // background colour is only used for pixels that are not rendered first frame, after that "background" - // color refers to the color that was there the previous frame. - memset(g->out, 0x00, 4 * pcount); - memset(g->background, 0x00, 4 * pcount); // state of the background (starts transparent) - memset(g->history, 0x00, pcount); // pixels that were affected previous frame - first_frame = 1; - } else { - // second frame - how do we dispose of the previous one? - dispose = (g->eflags & 0x1C) >> 2; - pcount = g->w * g->h; - - if ((dispose == 3) && (two_back == 0)) { - dispose = 2; // if I don't have an image to revert back to, default to the old background - } - - if (dispose == 3) { // use previous graphic - for (pi = 0; pi < pcount; ++pi) { - if (g->history[pi]) { - memcpy( &g->out[pi * 4], &two_back[pi * 4], 4 ); - } - } - } else if (dispose == 2) { - // restore what was changed last frame to background before that frame; - for (pi = 0; pi < pcount; ++pi) { - if (g->history[pi]) { - memcpy( &g->out[pi * 4], &g->background[pi * 4], 4 ); - } - } - } else { - // This is a non-disposal case eithe way, so just - // leave the pixels as is, and they will become the new background - // 1: do not dispose - // 0: not specified. - } - - // background is what out is after the undoing of the previou frame; - memcpy( g->background, g->out, 4 * g->w * g->h ); - } - - // clear my history; - memset( g->history, 0x00, g->w * g->h ); // pixels that were affected previous frame - - for (;;) { - int tag = stbi__get8(s); - switch (tag) { - case 0x2C: /* Image Descriptor */ - { - stbi__int32 x, y, w, h; - stbi_uc *o; - - x = stbi__get16le(s); - y = stbi__get16le(s); - w = stbi__get16le(s); - h = stbi__get16le(s); - if (((x + w) > (g->w)) || ((y + h) > (g->h))) - return stbi__errpuc("bad Image Descriptor", "Corrupt GIF"); - - g->line_size = g->w * 4; - g->start_x = x * 4; - g->start_y = y * g->line_size; - g->max_x = g->start_x + w * 4; - g->max_y = g->start_y + h * g->line_size; - g->cur_x = g->start_x; - g->cur_y = g->start_y; - - // if the width of the specified rectangle is 0, that means - // we may not see *any* pixels or the image is malformed; - // to make sure this is caught, move the current y down to - // max_y (which is what out_gif_code checks). - if (w == 0) - g->cur_y = g->max_y; - - g->lflags = stbi__get8(s); - - if (g->lflags & 0x40) { - g->step = 8 * g->line_size; // first interlaced spacing - g->parse = 3; - } else { - g->step = g->line_size; - g->parse = 0; - } - - if (g->lflags & 0x80) { - stbi__gif_parse_colortable(s,g->lpal, 2 << (g->lflags & 7), g->eflags & 0x01 ? g->transparent : -1); - g->color_table = (stbi_uc *) g->lpal; - } else if (g->flags & 0x80) { - g->color_table = (stbi_uc *) g->pal; - } else - return stbi__errpuc("missing color table", "Corrupt GIF"); - - o = stbi__process_gif_raster(s, g); - if (!o) return NULL; - - // if this was the first frame, - pcount = g->w * g->h; - if (first_frame && (g->bgindex > 0)) { - // if first frame, any pixel not drawn to gets the background color - for (pi = 0; pi < pcount; ++pi) { - if (g->history[pi] == 0) { - g->pal[g->bgindex][3] = 255; // just in case it was made transparent, undo that; It will be reset next frame if need be; - memcpy( &g->out[pi * 4], &g->pal[g->bgindex], 4 ); - } - } - } - - return o; - } - - case 0x21: // Comment Extension. - { - int len; - int ext = stbi__get8(s); - if (ext == 0xF9) { // Graphic Control Extension. - len = stbi__get8(s); - if (len == 4) { - g->eflags = stbi__get8(s); - g->delay = 10 * stbi__get16le(s); // delay - 1/100th of a second, saving as 1/1000ths. - - // unset old transparent - if (g->transparent >= 0) { - g->pal[g->transparent][3] = 255; - } - if (g->eflags & 0x01) { - g->transparent = stbi__get8(s); - if (g->transparent >= 0) { - g->pal[g->transparent][3] = 0; - } - } else { - // don't need transparent - stbi__skip(s, 1); - g->transparent = -1; - } - } else { - stbi__skip(s, len); - break; - } - } - while ((len = stbi__get8(s)) != 0) { - stbi__skip(s, len); - } - break; - } - - case 0x3B: // gif stream termination code - return (stbi_uc *) s; // using '1' causes warning on some compilers - - default: - return stbi__errpuc("unknown code", "Corrupt GIF"); - } - } -} - -static void *stbi__load_gif_main_outofmem(stbi__gif *g, stbi_uc *out, int **delays) -{ - STBI_FREE(g->out); - STBI_FREE(g->history); - STBI_FREE(g->background); - - if (out) STBI_FREE(out); - if (delays && *delays) STBI_FREE(*delays); - return stbi__errpuc("outofmem", "Out of memory"); -} - -static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp) -{ - if (stbi__gif_test(s)) { - int layers = 0; - stbi_uc *u = 0; - stbi_uc *out = 0; - stbi_uc *two_back = 0; - stbi__gif g; - int stride; - int out_size = 0; - int delays_size = 0; - - STBI_NOTUSED(out_size); - STBI_NOTUSED(delays_size); - - memset(&g, 0, sizeof(g)); - if (delays) { - *delays = 0; - } - - do { - u = stbi__gif_load_next(s, &g, comp, req_comp, two_back); - if (u == (stbi_uc *) s) u = 0; // end of animated gif marker - - if (u) { - *x = g.w; - *y = g.h; - ++layers; - stride = g.w * g.h * 4; - - if (out) { - void *tmp = (stbi_uc*) STBI_REALLOC_SIZED( out, out_size, layers * stride ); - if (!tmp) - return stbi__load_gif_main_outofmem(&g, out, delays); - else { - out = (stbi_uc*) tmp; - out_size = layers * stride; - } - - if (delays) { - int *new_delays = (int*) STBI_REALLOC_SIZED( *delays, delays_size, sizeof(int) * layers ); - if (!new_delays) - return stbi__load_gif_main_outofmem(&g, out, delays); - *delays = new_delays; - delays_size = layers * sizeof(int); - } - } else { - out = (stbi_uc*)stbi__malloc( layers * stride ); - if (!out) - return stbi__load_gif_main_outofmem(&g, out, delays); - out_size = layers * stride; - if (delays) { - *delays = (int*) stbi__malloc( layers * sizeof(int) ); - if (!*delays) - return stbi__load_gif_main_outofmem(&g, out, delays); - delays_size = layers * sizeof(int); - } - } - memcpy( out + ((layers - 1) * stride), u, stride ); - if (layers >= 2) { - two_back = out - 2 * stride; - } - - if (delays) { - (*delays)[layers - 1U] = g.delay; - } - } - } while (u != 0); - - // free temp buffer; - STBI_FREE(g.out); - STBI_FREE(g.history); - STBI_FREE(g.background); - - // do the final conversion after loading everything; - if (req_comp && req_comp != 4) - out = stbi__convert_format(out, 4, req_comp, layers * g.w, g.h); - - *z = layers; - return out; - } else { - return stbi__errpuc("not GIF", "Image was not as a gif type."); - } -} - -static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) -{ - stbi_uc *u = 0; - stbi__gif g; - memset(&g, 0, sizeof(g)); - STBI_NOTUSED(ri); - - u = stbi__gif_load_next(s, &g, comp, req_comp, 0); - if (u == (stbi_uc *) s) u = 0; // end of animated gif marker - if (u) { - *x = g.w; - *y = g.h; - - // moved conversion to after successful load so that the same - // can be done for multiple frames. - if (req_comp && req_comp != 4) - u = stbi__convert_format(u, 4, req_comp, g.w, g.h); - } else if (g.out) { - // if there was an error and we allocated an image buffer, free it! - STBI_FREE(g.out); - } - - // free buffers needed for multiple frame loading; - STBI_FREE(g.history); - STBI_FREE(g.background); - - return u; -} - -static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp) -{ - return stbi__gif_info_raw(s,x,y,comp); -} -#endif - -// ************************************************************************************************* -// Radiance RGBE HDR loader -// originally by Nicolas Schulz -#ifndef STBI_NO_HDR -static int stbi__hdr_test_core(stbi__context *s, const char *signature) -{ - int i; - for (i=0; signature[i]; ++i) - if (stbi__get8(s) != signature[i]) - return 0; - stbi__rewind(s); - return 1; -} - -static int stbi__hdr_test(stbi__context* s) -{ - int r = stbi__hdr_test_core(s, "#?RADIANCE\n"); - stbi__rewind(s); - if(!r) { - r = stbi__hdr_test_core(s, "#?RGBE\n"); - stbi__rewind(s); - } - return r; -} - -#define STBI__HDR_BUFLEN 1024 -static char *stbi__hdr_gettoken(stbi__context *z, char *buffer) -{ - int len=0; - char c = '\0'; - - c = (char) stbi__get8(z); - - while (!stbi__at_eof(z) && c != '\n') { - buffer[len++] = c; - if (len == STBI__HDR_BUFLEN-1) { - // flush to end of line - while (!stbi__at_eof(z) && stbi__get8(z) != '\n') - ; - break; - } - c = (char) stbi__get8(z); - } - - buffer[len] = 0; - return buffer; -} - -static void stbi__hdr_convert(float *output, stbi_uc *input, int req_comp) -{ - if ( input[3] != 0 ) { - float f1; - // Exponent - f1 = (float) ldexp(1.0f, input[3] - (int)(128 + 8)); - if (req_comp <= 2) - output[0] = (input[0] + input[1] + input[2]) * f1 / 3; - else { - output[0] = input[0] * f1; - output[1] = input[1] * f1; - output[2] = input[2] * f1; - } - if (req_comp == 2) output[1] = 1; - if (req_comp == 4) output[3] = 1; - } else { - switch (req_comp) { - case 4: output[3] = 1; /* fallthrough */ - case 3: output[0] = output[1] = output[2] = 0; - break; - case 2: output[1] = 1; /* fallthrough */ - case 1: output[0] = 0; - break; - } - } -} - -static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) -{ - char buffer[STBI__HDR_BUFLEN]; - char *token; - int valid = 0; - int width, height; - stbi_uc *scanline; - float *hdr_data; - int len; - unsigned char count, value; - int i, j, k, c1,c2, z; - const char *headerToken; - STBI_NOTUSED(ri); - - // Check identifier - headerToken = stbi__hdr_gettoken(s,buffer); - if (strcmp(headerToken, "#?RADIANCE") != 0 && strcmp(headerToken, "#?RGBE") != 0) - return stbi__errpf("not HDR", "Corrupt HDR image"); - - // Parse header - for(;;) { - token = stbi__hdr_gettoken(s,buffer); - if (token[0] == 0) break; - if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; - } - - if (!valid) return stbi__errpf("unsupported format", "Unsupported HDR format"); - - // Parse width and height - // can't use sscanf() if we're not using stdio! - token = stbi__hdr_gettoken(s,buffer); - if (strncmp(token, "-Y ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); - token += 3; - height = (int) strtol(token, &token, 10); - while (*token == ' ') ++token; - if (strncmp(token, "+X ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); - token += 3; - width = (int) strtol(token, NULL, 10); - - if (height > STBI_MAX_DIMENSIONS) return stbi__errpf("too large","Very large image (corrupt?)"); - if (width > STBI_MAX_DIMENSIONS) return stbi__errpf("too large","Very large image (corrupt?)"); - - *x = width; - *y = height; - - if (comp) *comp = 3; - if (req_comp == 0) req_comp = 3; - - if (!stbi__mad4sizes_valid(width, height, req_comp, sizeof(float), 0)) - return stbi__errpf("too large", "HDR image is too large"); - - // Read data - hdr_data = (float *) stbi__malloc_mad4(width, height, req_comp, sizeof(float), 0); - if (!hdr_data) - return stbi__errpf("outofmem", "Out of memory"); - - // Load image data - // image data is stored as some number of sca - if ( width < 8 || width >= 32768) { - // Read flat data - for (j=0; j < height; ++j) { - for (i=0; i < width; ++i) { - stbi_uc rgbe[4]; - main_decode_loop: - stbi__getn(s, rgbe, 4); - stbi__hdr_convert(hdr_data + j * width * req_comp + i * req_comp, rgbe, req_comp); - } - } - } else { - // Read RLE-encoded data - scanline = NULL; - - for (j = 0; j < height; ++j) { - c1 = stbi__get8(s); - c2 = stbi__get8(s); - len = stbi__get8(s); - if (c1 != 2 || c2 != 2 || (len & 0x80)) { - // not run-length encoded, so we have to actually use THIS data as a decoded - // pixel (note this can't be a valid pixel--one of RGB must be >= 128) - stbi_uc rgbe[4]; - rgbe[0] = (stbi_uc) c1; - rgbe[1] = (stbi_uc) c2; - rgbe[2] = (stbi_uc) len; - rgbe[3] = (stbi_uc) stbi__get8(s); - stbi__hdr_convert(hdr_data, rgbe, req_comp); - i = 1; - j = 0; - STBI_FREE(scanline); - goto main_decode_loop; // yes, this makes no sense - } - len <<= 8; - len |= stbi__get8(s); - if (len != width) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("invalid decoded scanline length", "corrupt HDR"); } - if (scanline == NULL) { - scanline = (stbi_uc *) stbi__malloc_mad2(width, 4, 0); - if (!scanline) { - STBI_FREE(hdr_data); - return stbi__errpf("outofmem", "Out of memory"); - } - } - - for (k = 0; k < 4; ++k) { - int nleft; - i = 0; - while ((nleft = width - i) > 0) { - count = stbi__get8(s); - if (count > 128) { - // Run - value = stbi__get8(s); - count -= 128; - if ((count == 0) || (count > nleft)) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); } - for (z = 0; z < count; ++z) - scanline[i++ * 4 + k] = value; - } else { - // Dump - if ((count == 0) || (count > nleft)) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); } - for (z = 0; z < count; ++z) - scanline[i++ * 4 + k] = stbi__get8(s); - } - } - } - for (i=0; i < width; ++i) - stbi__hdr_convert(hdr_data+(j*width + i)*req_comp, scanline + i*4, req_comp); - } - if (scanline) - STBI_FREE(scanline); - } - - return hdr_data; -} - -static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp) -{ - char buffer[STBI__HDR_BUFLEN]; - char *token; - int valid = 0; - int dummy; - - if (!x) x = &dummy; - if (!y) y = &dummy; - if (!comp) comp = &dummy; - - if (stbi__hdr_test(s) == 0) { - stbi__rewind( s ); - return 0; - } - - for(;;) { - token = stbi__hdr_gettoken(s,buffer); - if (token[0] == 0) break; - if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; - } - - if (!valid) { - stbi__rewind( s ); - return 0; - } - token = stbi__hdr_gettoken(s,buffer); - if (strncmp(token, "-Y ", 3)) { - stbi__rewind( s ); - return 0; - } - token += 3; - *y = (int) strtol(token, &token, 10); - while (*token == ' ') ++token; - if (strncmp(token, "+X ", 3)) { - stbi__rewind( s ); - return 0; - } - token += 3; - *x = (int) strtol(token, NULL, 10); - *comp = 3; - return 1; -} -#endif // STBI_NO_HDR - -#ifndef STBI_NO_BMP -static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp) -{ - void *p; - stbi__bmp_data info; - - info.all_a = 255; - p = stbi__bmp_parse_header(s, &info); - if (p == NULL) { - stbi__rewind( s ); - return 0; - } - if (x) *x = s->img_x; - if (y) *y = s->img_y; - if (comp) { - if (info.bpp == 24 && info.ma == 0xff000000) - *comp = 3; - else - *comp = info.ma ? 4 : 3; - } - return 1; -} -#endif - -#ifndef STBI_NO_PSD -static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp) -{ - int channelCount, dummy, depth; - if (!x) x = &dummy; - if (!y) y = &dummy; - if (!comp) comp = &dummy; - if (stbi__get32be(s) != 0x38425053) { - stbi__rewind( s ); - return 0; - } - if (stbi__get16be(s) != 1) { - stbi__rewind( s ); - return 0; - } - stbi__skip(s, 6); - channelCount = stbi__get16be(s); - if (channelCount < 0 || channelCount > 16) { - stbi__rewind( s ); - return 0; - } - *y = stbi__get32be(s); - *x = stbi__get32be(s); - depth = stbi__get16be(s); - if (depth != 8 && depth != 16) { - stbi__rewind( s ); - return 0; - } - if (stbi__get16be(s) != 3) { - stbi__rewind( s ); - return 0; - } - *comp = 4; - return 1; -} - -static int stbi__psd_is16(stbi__context *s) -{ - int channelCount, depth; - if (stbi__get32be(s) != 0x38425053) { - stbi__rewind( s ); - return 0; - } - if (stbi__get16be(s) != 1) { - stbi__rewind( s ); - return 0; - } - stbi__skip(s, 6); - channelCount = stbi__get16be(s); - if (channelCount < 0 || channelCount > 16) { - stbi__rewind( s ); - return 0; - } - STBI_NOTUSED(stbi__get32be(s)); - STBI_NOTUSED(stbi__get32be(s)); - depth = stbi__get16be(s); - if (depth != 16) { - stbi__rewind( s ); - return 0; - } - return 1; -} -#endif - -#ifndef STBI_NO_PIC -static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp) -{ - int act_comp=0,num_packets=0,chained,dummy; - stbi__pic_packet packets[10]; - - if (!x) x = &dummy; - if (!y) y = &dummy; - if (!comp) comp = &dummy; - - if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) { - stbi__rewind(s); - return 0; - } - - stbi__skip(s, 88); - - *x = stbi__get16be(s); - *y = stbi__get16be(s); - if (stbi__at_eof(s)) { - stbi__rewind( s); - return 0; - } - if ( (*x) != 0 && (1 << 28) / (*x) < (*y)) { - stbi__rewind( s ); - return 0; - } - - stbi__skip(s, 8); - - do { - stbi__pic_packet *packet; - - if (num_packets==sizeof(packets)/sizeof(packets[0])) - return 0; - - packet = &packets[num_packets++]; - chained = stbi__get8(s); - packet->size = stbi__get8(s); - packet->type = stbi__get8(s); - packet->channel = stbi__get8(s); - act_comp |= packet->channel; - - if (stbi__at_eof(s)) { - stbi__rewind( s ); - return 0; - } - if (packet->size != 8) { - stbi__rewind( s ); - return 0; - } - } while (chained); - - *comp = (act_comp & 0x10 ? 4 : 3); - - return 1; -} -#endif - -// ************************************************************************************************* -// Portable Gray Map and Portable Pixel Map loader -// by Ken Miller -// -// PGM: http://netpbm.sourceforge.net/doc/pgm.html -// PPM: http://netpbm.sourceforge.net/doc/ppm.html -// -// Known limitations: -// Does not support comments in the header section -// Does not support ASCII image data (formats P2 and P3) - -#ifndef STBI_NO_PNM - -static int stbi__pnm_test(stbi__context *s) -{ - char p, t; - p = (char) stbi__get8(s); - t = (char) stbi__get8(s); - if (p != 'P' || (t != '5' && t != '6')) { - stbi__rewind( s ); - return 0; - } - return 1; -} - -static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) -{ - stbi_uc *out; - STBI_NOTUSED(ri); - - ri->bits_per_channel = stbi__pnm_info(s, (int *)&s->img_x, (int *)&s->img_y, (int *)&s->img_n); - if (ri->bits_per_channel == 0) - return 0; - - if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); - if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); - - *x = s->img_x; - *y = s->img_y; - if (comp) *comp = s->img_n; - - if (!stbi__mad4sizes_valid(s->img_n, s->img_x, s->img_y, ri->bits_per_channel / 8, 0)) - return stbi__errpuc("too large", "PNM too large"); - - out = (stbi_uc *) stbi__malloc_mad4(s->img_n, s->img_x, s->img_y, ri->bits_per_channel / 8, 0); - if (!out) return stbi__errpuc("outofmem", "Out of memory"); - if (!stbi__getn(s, out, s->img_n * s->img_x * s->img_y * (ri->bits_per_channel / 8))) { - STBI_FREE(out); - return stbi__errpuc("bad PNM", "PNM file truncated"); - } - - if (req_comp && req_comp != s->img_n) { - if (ri->bits_per_channel == 16) { - out = (stbi_uc *) stbi__convert_format16((stbi__uint16 *) out, s->img_n, req_comp, s->img_x, s->img_y); - } else { - out = stbi__convert_format(out, s->img_n, req_comp, s->img_x, s->img_y); - } - if (out == NULL) return out; // stbi__convert_format frees input on failure - } - return out; -} - -static int stbi__pnm_isspace(char c) -{ - return c == ' ' || c == '\t' || c == '\n' || c == '\v' || c == '\f' || c == '\r'; -} - -static void stbi__pnm_skip_whitespace(stbi__context *s, char *c) -{ - for (;;) { - while (!stbi__at_eof(s) && stbi__pnm_isspace(*c)) - *c = (char) stbi__get8(s); - - if (stbi__at_eof(s) || *c != '#') - break; - - while (!stbi__at_eof(s) && *c != '\n' && *c != '\r' ) - *c = (char) stbi__get8(s); - } -} - -static int stbi__pnm_isdigit(char c) -{ - return c >= '0' && c <= '9'; -} - -static int stbi__pnm_getinteger(stbi__context *s, char *c) -{ - int value = 0; - - while (!stbi__at_eof(s) && stbi__pnm_isdigit(*c)) { - value = value*10 + (*c - '0'); - *c = (char) stbi__get8(s); - if((value > 214748364) || (value == 214748364 && *c > '7')) - return stbi__err("integer parse overflow", "Parsing an integer in the PPM header overflowed a 32-bit int"); - } - - return value; -} - -static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp) -{ - int maxv, dummy; - char c, p, t; - - if (!x) x = &dummy; - if (!y) y = &dummy; - if (!comp) comp = &dummy; - - stbi__rewind(s); - - // Get identifier - p = (char) stbi__get8(s); - t = (char) stbi__get8(s); - if (p != 'P' || (t != '5' && t != '6')) { - stbi__rewind(s); - return 0; - } - - *comp = (t == '6') ? 3 : 1; // '5' is 1-component .pgm; '6' is 3-component .ppm - - c = (char) stbi__get8(s); - stbi__pnm_skip_whitespace(s, &c); - - *x = stbi__pnm_getinteger(s, &c); // read width - if(*x == 0) - return stbi__err("invalid width", "PPM image header had zero or overflowing width"); - stbi__pnm_skip_whitespace(s, &c); - - *y = stbi__pnm_getinteger(s, &c); // read height - if (*y == 0) - return stbi__err("invalid width", "PPM image header had zero or overflowing width"); - stbi__pnm_skip_whitespace(s, &c); - - maxv = stbi__pnm_getinteger(s, &c); // read max value - if (maxv > 65535) - return stbi__err("max value > 65535", "PPM image supports only 8-bit and 16-bit images"); - else if (maxv > 255) - return 16; - else - return 8; -} - -static int stbi__pnm_is16(stbi__context *s) -{ - if (stbi__pnm_info(s, NULL, NULL, NULL) == 16) - return 1; - return 0; -} -#endif - -static int stbi__info_main(stbi__context *s, int *x, int *y, int *comp) -{ - #ifndef STBI_NO_JPEG - if (stbi__jpeg_info(s, x, y, comp)) return 1; - #endif - - #ifndef STBI_NO_PNG - if (stbi__png_info(s, x, y, comp)) return 1; - #endif - - #ifndef STBI_NO_GIF - if (stbi__gif_info(s, x, y, comp)) return 1; - #endif - - #ifndef STBI_NO_BMP - if (stbi__bmp_info(s, x, y, comp)) return 1; - #endif - - #ifndef STBI_NO_PSD - if (stbi__psd_info(s, x, y, comp)) return 1; - #endif - - #ifndef STBI_NO_PIC - if (stbi__pic_info(s, x, y, comp)) return 1; - #endif - - #ifndef STBI_NO_PNM - if (stbi__pnm_info(s, x, y, comp)) return 1; - #endif - - #ifndef STBI_NO_HDR - if (stbi__hdr_info(s, x, y, comp)) return 1; - #endif - - // test tga last because it's a crappy test! - #ifndef STBI_NO_TGA - if (stbi__tga_info(s, x, y, comp)) - return 1; - #endif - return stbi__err("unknown image type", "Image not of any known type, or corrupt"); -} - -static int stbi__is_16_main(stbi__context *s) -{ - #ifndef STBI_NO_PNG - if (stbi__png_is16(s)) return 1; - #endif - - #ifndef STBI_NO_PSD - if (stbi__psd_is16(s)) return 1; - #endif - - #ifndef STBI_NO_PNM - if (stbi__pnm_is16(s)) return 1; - #endif - return 0; -} - -#ifndef STBI_NO_STDIO -STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp) -{ - FILE *f = stbi__fopen(filename, "rb"); - int result; - if (!f) return stbi__err("can't fopen", "Unable to open file"); - result = stbi_info_from_file(f, x, y, comp); - fclose(f); - return result; -} - -STBIDEF int stbi_info_from_file(FILE *f, int *x, int *y, int *comp) -{ - int r; - stbi__context s; - long pos = ftell(f); - stbi__start_file(&s, f); - r = stbi__info_main(&s,x,y,comp); - fseek(f,pos,SEEK_SET); - return r; -} - -STBIDEF int stbi_is_16_bit(char const *filename) -{ - FILE *f = stbi__fopen(filename, "rb"); - int result; - if (!f) return stbi__err("can't fopen", "Unable to open file"); - result = stbi_is_16_bit_from_file(f); - fclose(f); - return result; -} - -STBIDEF int stbi_is_16_bit_from_file(FILE *f) -{ - int r; - stbi__context s; - long pos = ftell(f); - stbi__start_file(&s, f); - r = stbi__is_16_main(&s); - fseek(f,pos,SEEK_SET); - return r; -} -#endif // !STBI_NO_STDIO - -STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp) -{ - stbi__context s; - stbi__start_mem(&s,buffer,len); - return stbi__info_main(&s,x,y,comp); -} - -STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp) -{ - stbi__context s; - stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user); - return stbi__info_main(&s,x,y,comp); -} - -STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len) -{ - stbi__context s; - stbi__start_mem(&s,buffer,len); - return stbi__is_16_main(&s); -} - -STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user) -{ - stbi__context s; - stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user); - return stbi__is_16_main(&s); -} - -#endif // STB_IMAGE_IMPLEMENTATION - -/* - revision history: - 2.20 (2019-02-07) support utf8 filenames in Windows; fix warnings and platform ifdefs - 2.19 (2018-02-11) fix warning - 2.18 (2018-01-30) fix warnings - 2.17 (2018-01-29) change sbti__shiftsigned to avoid clang -O2 bug - 1-bit BMP - *_is_16_bit api - avoid warnings - 2.16 (2017-07-23) all functions have 16-bit variants; - STBI_NO_STDIO works again; - compilation fixes; - fix rounding in unpremultiply; - optimize vertical flip; - disable raw_len validation; - documentation fixes - 2.15 (2017-03-18) fix png-1,2,4 bug; now all Imagenet JPGs decode; - warning fixes; disable run-time SSE detection on gcc; - uniform handling of optional "return" values; - thread-safe initialization of zlib tables - 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs - 2.13 (2016-11-29) add 16-bit API, only supported for PNG right now - 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes - 2.11 (2016-04-02) allocate large structures on the stack - remove white matting for transparent PSD - fix reported channel count for PNG & BMP - re-enable SSE2 in non-gcc 64-bit - support RGB-formatted JPEG - read 16-bit PNGs (only as 8-bit) - 2.10 (2016-01-22) avoid warning introduced in 2.09 by STBI_REALLOC_SIZED - 2.09 (2016-01-16) allow comments in PNM files - 16-bit-per-pixel TGA (not bit-per-component) - info() for TGA could break due to .hdr handling - info() for BMP to shares code instead of sloppy parse - can use STBI_REALLOC_SIZED if allocator doesn't support realloc - code cleanup - 2.08 (2015-09-13) fix to 2.07 cleanup, reading RGB PSD as RGBA - 2.07 (2015-09-13) fix compiler warnings - partial animated GIF support - limited 16-bpc PSD support - #ifdef unused functions - bug with < 92 byte PIC,PNM,HDR,TGA - 2.06 (2015-04-19) fix bug where PSD returns wrong '*comp' value - 2.05 (2015-04-19) fix bug in progressive JPEG handling, fix warning - 2.04 (2015-04-15) try to re-enable SIMD on MinGW 64-bit - 2.03 (2015-04-12) extra corruption checking (mmozeiko) - stbi_set_flip_vertically_on_load (nguillemot) - fix NEON support; fix mingw support - 2.02 (2015-01-19) fix incorrect assert, fix warning - 2.01 (2015-01-17) fix various warnings; suppress SIMD on gcc 32-bit without -msse2 - 2.00b (2014-12-25) fix STBI_MALLOC in progressive JPEG - 2.00 (2014-12-25) optimize JPG, including x86 SSE2 & NEON SIMD (ryg) - progressive JPEG (stb) - PGM/PPM support (Ken Miller) - STBI_MALLOC,STBI_REALLOC,STBI_FREE - GIF bugfix -- seemingly never worked - STBI_NO_*, STBI_ONLY_* - 1.48 (2014-12-14) fix incorrectly-named assert() - 1.47 (2014-12-14) 1/2/4-bit PNG support, both direct and paletted (Omar Cornut & stb) - optimize PNG (ryg) - fix bug in interlaced PNG with user-specified channel count (stb) - 1.46 (2014-08-26) - fix broken tRNS chunk (colorkey-style transparency) in non-paletted PNG - 1.45 (2014-08-16) - fix MSVC-ARM internal compiler error by wrapping malloc - 1.44 (2014-08-07) - various warning fixes from Ronny Chevalier - 1.43 (2014-07-15) - fix MSVC-only compiler problem in code changed in 1.42 - 1.42 (2014-07-09) - don't define _CRT_SECURE_NO_WARNINGS (affects user code) - fixes to stbi__cleanup_jpeg path - added STBI_ASSERT to avoid requiring assert.h - 1.41 (2014-06-25) - fix search&replace from 1.36 that messed up comments/error messages - 1.40 (2014-06-22) - fix gcc struct-initialization warning - 1.39 (2014-06-15) - fix to TGA optimization when req_comp != number of components in TGA; - fix to GIF loading because BMP wasn't rewinding (whoops, no GIFs in my test suite) - add support for BMP version 5 (more ignored fields) - 1.38 (2014-06-06) - suppress MSVC warnings on integer casts truncating values - fix accidental rename of 'skip' field of I/O - 1.37 (2014-06-04) - remove duplicate typedef - 1.36 (2014-06-03) - convert to header file single-file library - if de-iphone isn't set, load iphone images color-swapped instead of returning NULL - 1.35 (2014-05-27) - various warnings - fix broken STBI_SIMD path - fix bug where stbi_load_from_file no longer left file pointer in correct place - fix broken non-easy path for 32-bit BMP (possibly never used) - TGA optimization by Arseny Kapoulkine - 1.34 (unknown) - use STBI_NOTUSED in stbi__resample_row_generic(), fix one more leak in tga failure case - 1.33 (2011-07-14) - make stbi_is_hdr work in STBI_NO_HDR (as specified), minor compiler-friendly improvements - 1.32 (2011-07-13) - support for "info" function for all supported filetypes (SpartanJ) - 1.31 (2011-06-20) - a few more leak fixes, bug in PNG handling (SpartanJ) - 1.30 (2011-06-11) - added ability to load files via callbacks to accomidate custom input streams (Ben Wenger) - removed deprecated format-specific test/load functions - removed support for installable file formats (stbi_loader) -- would have been broken for IO callbacks anyway - error cases in bmp and tga give messages and don't leak (Raymond Barbiero, grisha) - fix inefficiency in decoding 32-bit BMP (David Woo) - 1.29 (2010-08-16) - various warning fixes from Aurelien Pocheville - 1.28 (2010-08-01) - fix bug in GIF palette transparency (SpartanJ) - 1.27 (2010-08-01) - cast-to-stbi_uc to fix warnings - 1.26 (2010-07-24) - fix bug in file buffering for PNG reported by SpartanJ - 1.25 (2010-07-17) - refix trans_data warning (Won Chun) - 1.24 (2010-07-12) - perf improvements reading from files on platforms with lock-heavy fgetc() - minor perf improvements for jpeg - deprecated type-specific functions so we'll get feedback if they're needed - attempt to fix trans_data warning (Won Chun) - 1.23 fixed bug in iPhone support - 1.22 (2010-07-10) - removed image *writing* support - stbi_info support from Jetro Lauha - GIF support from Jean-Marc Lienher - iPhone PNG-extensions from James Brown - warning-fixes from Nicolas Schulz and Janez Zemva (i.stbi__err. Janez (U+017D)emva) - 1.21 fix use of 'stbi_uc' in header (reported by jon blow) - 1.20 added support for Softimage PIC, by Tom Seddon - 1.19 bug in interlaced PNG corruption check (found by ryg) - 1.18 (2008-08-02) - fix a threading bug (local mutable static) - 1.17 support interlaced PNG - 1.16 major bugfix - stbi__convert_format converted one too many pixels - 1.15 initialize some fields for thread safety - 1.14 fix threadsafe conversion bug - header-file-only version (#define STBI_HEADER_FILE_ONLY before including) - 1.13 threadsafe - 1.12 const qualifiers in the API - 1.11 Support installable IDCT, colorspace conversion routines - 1.10 Fixes for 64-bit (don't use "unsigned long") - optimized upsampling by Fabian "ryg" Giesen - 1.09 Fix format-conversion for PSD code (bad global variables!) - 1.08 Thatcher Ulrich's PSD code integrated by Nicolas Schulz - 1.07 attempt to fix C++ warning/errors again - 1.06 attempt to fix C++ warning/errors again - 1.05 fix TGA loading to return correct *comp and use good luminance calc - 1.04 default float alpha is 1, not 255; use 'void *' for stbi_image_free - 1.03 bugfixes to STBI_NO_STDIO, STBI_NO_HDR - 1.02 support for (subset of) HDR files, float interface for preferred access to them - 1.01 fix bug: possible bug in handling right-side up bmps... not sure - fix bug: the stbi__bmp_load() and stbi__tga_load() functions didn't work at all - 1.00 interface to zlib that skips zlib header - 0.99 correct handling of alpha in palette - 0.98 TGA loader by lonesock; dynamically add loaders (untested) - 0.97 jpeg errors on too large a file; also catch another malloc failure - 0.96 fix detection of invalid v value - particleman@mollyrocket forum - 0.95 during header scan, seek to markers in case of padding - 0.94 STBI_NO_STDIO to disable stdio usage; rename all #defines the same - 0.93 handle jpegtran output; verbose errors - 0.92 read 4,8,16,24,32-bit BMP files of several formats - 0.91 output 24-bit Windows 3.0 BMP files - 0.90 fix a few more warnings; bump version number to approach 1.0 - 0.61 bugfixes due to Marc LeBlanc, Christopher Lloyd - 0.60 fix compiling as c++ - 0.59 fix warnings: merge Dave Moore's -Wall fixes - 0.58 fix bug: zlib uncompressed mode len/nlen was wrong endian - 0.57 fix bug: jpg last huffman symbol before marker was >9 bits but less than 16 available - 0.56 fix bug: zlib uncompressed mode len vs. nlen - 0.55 fix bug: restart_interval not initialized to 0 - 0.54 allow NULL for 'int *comp' - 0.53 fix bug in png 3->4; speedup png decoding - 0.52 png handles req_comp=3,4 directly; minor cleanup; jpeg comments - 0.51 obey req_comp requests, 1-component jpegs return as 1-component, - on 'test' only check type, not whether we support this variant - 0.50 (2006-11-19) - first released version -*/ - - -/* ------------------------------------------------------------------------------- -This software is available under 2 licenses -- choose whichever you prefer. ------------------------------------------------------------------------------- -ALTERNATIVE A - MIT License -Copyright (c) 2017 Sean Barrett -Permission is hereby granted, free of charge, to any person obtaining a copy of -this software and associated documentation files (the "Software"), to deal in -the Software without restriction, including without limitation the rights to -use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies -of the Software, and to permit persons to whom the Software is furnished to do -so, subject to the following conditions: -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. ------------------------------------------------------------------------------- -ALTERNATIVE B - Public Domain (www.unlicense.org) -This is free and unencumbered software released into the public domain. -Anyone is free to copy, modify, publish, use, compile, sell, or distribute this -software, either in source code form or as a compiled binary, for any purpose, -commercial or non-commercial, and by any means. -In jurisdictions that recognize copyright laws, the author or authors of this -software dedicate any and all copyright interest in the software to the public -domain. We make this dedication for the benefit of the public at large and to -the detriment of our heirs and successors. We intend this dedication to be an -overt act of relinquishment in perpetuity of all present and future rights to -this software under copyright law. -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN -ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION -WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ------------------------------------------------------------------------------- -*/ diff --git a/core/misc/glfw_misc.cpp b/core/misc/glfw_misc.cpp deleted file mode 100644 index ea4c10b..0000000 --- a/core/misc/glfw_misc.cpp +++ /dev/null @@ -1,20 +0,0 @@ -#include "glfw_misc.h" - -#ifdef WIN32 -#define GLFW_EXPOSE_NATIVE_WIN32 -#elif defined(__APPLE__) -#define GLFW_EXPOSE_NATIVE_COCOA -#else -#define GLFW_EXPOSE_NATIVE_X11 -#endif -#include - -void* glfwGetWindowHandle(GLFWwindow* window) { -#ifdef WIN32 - return glfwGetWin32Window(window); -#elif defined(__APPLE__) - return glfwGetCocoaWindow(window); -#else - return glfwGetX11Window(window); -#endif -} diff --git a/core/misc/glfw_misc.h b/core/misc/glfw_misc.h deleted file mode 100644 index 7015a68..0000000 --- a/core/misc/glfw_misc.h +++ /dev/null @@ -1,7 +0,0 @@ -#pragma once -#include "GLFW/glfw3.h" - -extern "C" -{ - CORE_API void* glfwGetWindowHandle(GLFWwindow* window); -} diff --git a/core/rhi/buffer_vk.cpp b/core/rhi/buffer_vk.cpp deleted file mode 100644 index bd0c1e9..0000000 --- a/core/rhi/buffer_vk.cpp +++ /dev/null @@ -1,65 +0,0 @@ -#include "buffer_vk.h" - -#include "utils/utils.hpp" - -buffer_vk::buffer_vk() { - buffer = nullptr; - memory = nullptr; - descriptor_type = vk::DescriptorType::eUniformBuffer; -} - -void buffer_vk::create(uint32_t size, vk::BufferUsageFlagBits in_usage, vk::DescriptorType in_descriptor_type) { - destroy(); - buffer_size = size; - descriptor_type = in_descriptor_type; - const renderer* render_vk = application::get()->get_renderer(); - const vk::Device& device = render_vk->device; - - vk::BufferCreateInfo buffer_create_info; - buffer_create_info.setSize(size); - buffer_create_info.setUsage(in_usage); - buffer_create_info.setSharingMode(vk::SharingMode::eExclusive); - buffer = device.createBuffer(buffer_create_info); - - const vk::PhysicalDeviceMemoryProperties memory_properties = render_vk->physical_device.getMemoryProperties(); - const vk::MemoryRequirements memory_requirements = device.getBufferMemoryRequirements(buffer); - const auto memory_type = vk::su::findMemoryType(memory_properties, memory_requirements.memoryTypeBits, vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent); - - vk::MemoryAllocateInfo memory_allocate_info; - memory_allocate_info.setAllocationSize(memory_requirements.size); - memory_allocate_info.setMemoryTypeIndex(memory_type); - memory = device.allocateMemory(memory_allocate_info); - device.bindBufferMemory(buffer, memory, 0); -} - -void buffer_vk::create_storage(uint32_t size) { - create(size, vk::BufferUsageFlagBits::eStorageBuffer, vk::DescriptorType::eStorageBuffer); -} - -void buffer_vk::create_uniform(uint32_t size) { - create(size, vk::BufferUsageFlagBits::eUniformBuffer, vk::DescriptorType::eUniformBuffer); -} - -void buffer_vk::create_staging(uint32_t size) { - create(size, vk::BufferUsageFlagBits::eTransferSrc, vk::DescriptorType::eUniformBuffer); -} - -void buffer_vk::destroy() { - if (!buffer) { - return; - } - const renderer* render_vk = application::get()->get_renderer(); - const vk::Device& device = render_vk->device; - - device.destroyBuffer(buffer); - device.freeMemory(memory); - - buffer = nullptr; - memory = nullptr; -} - -void buffer_vk::update(const void* data, uint32_t size) { - const auto p = map(); - memcpy(p, data, size); - unmap(); -} diff --git a/core/rhi/buffer_vk.h b/core/rhi/buffer_vk.h deleted file mode 100644 index d880251..0000000 --- a/core/rhi/buffer_vk.h +++ /dev/null @@ -1,53 +0,0 @@ -#pragma once -#include -#include - -#include "renderer.h" - -class CORE_API buffer_vk { -public: - buffer_vk(); - ~buffer_vk() { destroy(); } - - void create(uint32_t size, vk::BufferUsageFlagBits in_usage, vk::DescriptorType in_descriptor_type); - void create_storage(uint32_t size); - void create_uniform(uint32_t size); - void create_staging(uint32_t size); - void destroy(); - - template - T* map() { - const auto& device = application::get()->get_renderer()->device; - void* mapped; - const auto err = device.mapMemory(memory, 0, buffer_size, vk::MemoryMapFlags(), &mapped); - check_vk_result(err); - return static_cast(mapped); - } - void unmap() const { - const auto& device = application::get()->get_renderer()->device; - device.unmapMemory(memory); - } - - void update(const void* data, uint32_t size); - template - void update(const T& data) { - update(&data, sizeof(T)); - } - template - void update(const std::vector& data) { - update(data.data(), data.size() * sizeof(T)); - } - - [[nodiscard]] vk::DescriptorBufferInfo get_descriptor_info() const { - vk::DescriptorBufferInfo descriptor_buffer_info; - descriptor_buffer_info.setBuffer(buffer); - descriptor_buffer_info.setOffset(0); - descriptor_buffer_info.setRange(buffer_size); - return descriptor_buffer_info; - } - - vk::Buffer buffer; - vk::DeviceMemory memory; - vk::DescriptorType descriptor_type; - uint32_t buffer_size; -}; diff --git a/core/rhi/compute_pipeline.cpp b/core/rhi/compute_pipeline.cpp deleted file mode 100644 index 8c84a2e..0000000 --- a/core/rhi/compute_pipeline.cpp +++ /dev/null @@ -1,73 +0,0 @@ -#include "compute_pipeline.h" - -#include "renderer.h" - -#include - -compute_pipeline::~compute_pipeline() { - const renderer* render_vk = application::get()->get_renderer(); - const vk::Device& device = render_vk->device; - - device.destroyShaderModule(shader_module_); -} - -void compute_pipeline::add_binding(uint32_t binding, vk::DescriptorType descriptor_type, uint32_t descriptor_count, - vk::Sampler immutable_samplers) { - const vk::ShaderStageFlags flag = vk::ShaderStageFlagBits::eCompute; - - vk::DescriptorSetLayoutBinding descriptor_set_layout_binding; - descriptor_set_layout_binding.setBinding(binding); - descriptor_set_layout_binding.setDescriptorType(descriptor_type); - descriptor_set_layout_binding.setDescriptorCount(descriptor_count); - descriptor_set_layout_binding.setStageFlags(flag); - if (immutable_samplers) - descriptor_set_layout_binding.setImmutableSamplers(immutable_samplers); - descriptor_set_layout_bindings_.push_back(descriptor_set_layout_binding); -} - -void compute_pipeline::create() { - const renderer* render_vk = application::get()->get_renderer(); - const vk::Device& device = render_vk->device; - - create_pipeline_layout(); - - vk::PipelineShaderStageCreateInfo pipeline_shader_stage_create_info; - pipeline_shader_stage_create_info.setStage(vk::ShaderStageFlagBits::eCompute); - pipeline_shader_stage_create_info.setModule(shader_module_); - pipeline_shader_stage_create_info.setPName("main"); - - vk::ComputePipelineCreateInfo pipeline_create_info; - pipeline_create_info.setLayout(pipeline_layout_); - pipeline_create_info.setStage(pipeline_shader_stage_create_info); - const auto pipeline_result = device.createComputePipeline(VK_NULL_HANDLE, pipeline_create_info); - - check_vk_result(pipeline_result.result); - pipeline_ = pipeline_result.value; -} - -void compute_pipeline::dispatch(uint32_t group_count_x, uint32_t group_count_y, uint32_t group_count_z) const { -#ifdef _DEBUG - if (pipeline_ == vk::Pipeline()) { - throw std::runtime_error("Pipeline not created"); - } -#endif - renderer* render_vk = application::get()->get_renderer(); - - const vk::CommandBuffer command_buffer = render_vk->create_command_buffer(vk::CommandBufferLevel::ePrimary, true); - - command_buffer.bindPipeline(vk::PipelineBindPoint::eCompute, pipeline_); - command_buffer.bindDescriptorSets(vk::PipelineBindPoint::eCompute, pipeline_layout_, 0, descriptor_set_, nullptr); - command_buffer.dispatch(group_count_x, group_count_y, group_count_z); - - render_vk->end_command_buffer(command_buffer, true); -} - -void compute_pipeline::set_shader(const uint8_t* shader_code, size_t shader_code_size) { - const renderer* render_vk = application::get()->get_renderer(); - const vk::Device& device = render_vk->device; - - vk::ShaderModuleCreateInfo shader_module_create_info; - shader_module_create_info.setCodeSize(shader_code_size); - shader_module_create_info.setPCode(reinterpret_cast(shader_code)); - shader_module_ = device.createShaderModule(shader_module_create_info); -} diff --git a/core/rhi/compute_pipeline.h b/core/rhi/compute_pipeline.h deleted file mode 100644 index 67d7573..0000000 --- a/core/rhi/compute_pipeline.h +++ /dev/null @@ -1,15 +0,0 @@ -#pragma once -#include "pipeline.h" - -class CORE_API compute_pipeline : public pipeline { -public: - ~compute_pipeline() override; - void add_binding(uint32_t binding, vk::DescriptorType descriptor_type, uint32_t descriptor_count, vk::Sampler immutable_samplers) override; - void create() override; - - void dispatch(uint32_t group_count_x, uint32_t group_count_y, uint32_t group_count_z) const; - - void set_shader(const uint8_t *shader_code, size_t shader_code_size); -private: - vk::ShaderModule shader_module_; -}; diff --git a/core/rhi/pipeline.cpp b/core/rhi/pipeline.cpp deleted file mode 100644 index dbec013..0000000 --- a/core/rhi/pipeline.cpp +++ /dev/null @@ -1,119 +0,0 @@ -#include "pipeline.h" - -#include "renderer.h" -#include "texture.h" - -pipeline::~pipeline() { - const renderer* render_vk = application::get()->get_renderer(); - const vk::Device& device = render_vk->device; - - device.destroyDescriptorPool(descriptor_pool_); - device.destroyDescriptorSetLayout(descriptor_set_layout_); - device.destroyPipelineLayout(pipeline_layout_); - device.destroyPipeline(pipeline_); -} - -void pipeline::add_uniform_buffer(uint32_t binding, std::shared_ptr buf) { - add_binding(binding, vk::DescriptorType::eUniformBuffer, 1, nullptr); - buffers_[binding] = buf; -} - -void pipeline::add_storage_buffer(uint32_t binding, std::shared_ptr buf) { - add_binding(binding, vk::DescriptorType::eStorageBuffer, 1, nullptr); - buffers_[binding] = buf; -} - -void pipeline::add_sampled_image(uint32_t binding, std::shared_ptr in_texture) { - add_binding(binding, vk::DescriptorType::eSampledImage, 1, in_texture->sampler); - textures_[binding] = in_texture; -} - -void pipeline::add_storage_image(uint32_t binding, std::shared_ptr in_texture) { - add_binding(binding, vk::DescriptorType::eStorageImage, 1, in_texture->sampler); - textures_[binding] = in_texture; -} - -void pipeline::add_input_attachment(uint32_t binding) { - add_binding(binding, vk::DescriptorType::eInputAttachment, 1, nullptr); -} - -void pipeline::add_sampler(uint32_t binding, vk::Sampler immutable_samplers) { - add_binding(binding, vk::DescriptorType::eSampler, 1, immutable_samplers); -} - -void pipeline::add_combined_image(uint32_t binding, std::shared_ptr in_texture) { - add_binding(binding, vk::DescriptorType::eCombinedImageSampler, 1, in_texture->sampler); - textures_[binding] = in_texture; -} - -void pipeline::create_pipeline_layout() { - const renderer* render_vk = application::get()->get_renderer(); - const vk::Device& device = render_vk->device; - - vk::DescriptorSetLayoutCreateInfo descriptor_set_layout_create_info; - descriptor_set_layout_create_info.setBindings(descriptor_set_layout_bindings_); - descriptor_set_layout_ = device.createDescriptorSetLayout(descriptor_set_layout_create_info); - - std::vector pool_sizes; - { - std::map temp_pool_sizes; - for (const auto& binding: descriptor_set_layout_bindings_) { - temp_pool_sizes[binding.descriptorType]++; - } - for (const auto& pair: temp_pool_sizes) { - pool_sizes.emplace_back(pair.first, pair.second); - } - } - - vk::DescriptorPoolCreateInfo descriptor_pool_create_info; - descriptor_pool_create_info.setMaxSets(1); - descriptor_pool_create_info.setPoolSizes(pool_sizes); - descriptor_pool_ = device.createDescriptorPool(descriptor_pool_create_info); - - vk::DescriptorSetAllocateInfo descriptor_set_allocate_info; - descriptor_set_allocate_info.setDescriptorPool(descriptor_pool_); - descriptor_set_allocate_info.setDescriptorSetCount(1); - descriptor_set_allocate_info.setSetLayouts(descriptor_set_layout_); - const std::vector& sets = device.allocateDescriptorSets(descriptor_set_allocate_info); - descriptor_set_ = sets.front(); - - std::vector write_descriptor_sets; - std::vector> temp_buffer_infos; - std::vector> temp_image_infoses; - - for (const auto& binding_info: descriptor_set_layout_bindings_) { - vk::WriteDescriptorSet write_descriptor_set; - write_descriptor_set.setDstSet(descriptor_set_); - write_descriptor_set.setDstBinding(binding_info.binding); - write_descriptor_set.setDescriptorType(binding_info.descriptorType); - - switch (binding_info.descriptorType) { - case vk::DescriptorType::eCombinedImageSampler: - case vk::DescriptorType::eSampledImage: - case vk::DescriptorType::eStorageImage: { - const auto& t = textures_[binding_info.binding]; - vk::DescriptorImageInfo image_info = t->get_descriptor_info(); - temp_image_infoses.push_back({image_info}); - write_descriptor_set.setImageInfo(temp_image_infoses.back()); - } - break; - case vk::DescriptorType::eUniformBuffer: - case vk::DescriptorType::eStorageBuffer: { - const auto& b = buffers_[binding_info.binding]; - vk::DescriptorBufferInfo buffer_info = b->get_descriptor_info(); - temp_buffer_infos.push_back( {buffer_info} ); - write_descriptor_set.setBufferInfo(temp_buffer_infos.back()); - } - break; - default: - continue; - } - write_descriptor_sets.push_back(write_descriptor_set); - } - - device.updateDescriptorSets(write_descriptor_sets, nullptr); - - vk::PipelineLayoutCreateInfo pipeline_layout_create_info; - pipeline_layout_create_info.setSetLayouts(descriptor_set_layout_); - pipeline_layout_ = device.createPipelineLayout(pipeline_layout_create_info); -} diff --git a/core/rhi/pipeline.h b/core/rhi/pipeline.h deleted file mode 100644 index efc168b..0000000 --- a/core/rhi/pipeline.h +++ /dev/null @@ -1,47 +0,0 @@ -#pragma once -#include -#include - -#include "buffer_vk.h" - -class render_resource; -class texture; - -/// 1. add_binding -/// 2. create(); -/// 3. dispatch(); -class CORE_API pipeline { -public: - virtual ~pipeline(); - - virtual void add_binding(uint32_t binding, vk::DescriptorType descriptor_type, uint32_t descriptor_count, vk::Sampler immutable_samplers) = 0; - - void add_uniform_buffer(uint32_t binding, std::shared_ptr buf); - - void add_storage_buffer(uint32_t binding, std::shared_ptr buf); - - void add_sampled_image(uint32_t binding, std::shared_ptr in_texture); - - void add_storage_image(uint32_t binding, std::shared_ptr in_texture); - - void add_input_attachment(uint32_t binding); - - void add_sampler(uint32_t binding, vk::Sampler immutable_samplers = nullptr); - - void add_combined_image(uint32_t binding, std::shared_ptr in_texture); - - virtual void create() = 0; -protected: - vk::Pipeline pipeline_; - vk::PipelineLayout pipeline_layout_; - vk::DescriptorSetLayout descriptor_set_layout_; - vk::DescriptorSet descriptor_set_; - - vk::DescriptorPool descriptor_pool_; - std::vector descriptor_set_layout_bindings_; - - std::map> buffers_; - std::map> textures_; -protected: - void create_pipeline_layout(); -}; diff --git a/core/rhi/render_resource.h b/core/rhi/render_resource.h deleted file mode 100644 index 2803a24..0000000 --- a/core/rhi/render_resource.h +++ /dev/null @@ -1,74 +0,0 @@ -#pragma once -#include "imgui.h" -#include "renderer.h" -#include "application/application.h" - -class render_resource : public std::enable_shared_from_this { -public: - render_resource() { - format = vk::Format::eUndefined; - width_ = 0; - height_ = 0; - image = nullptr; - image_view = nullptr; - sampler = nullptr; - memory = nullptr; - descriptor_set = nullptr; - } - virtual ~render_resource() { - render_resource::destroy(); - } - - [[nodiscard]] int get_width() const { return width_; } - [[nodiscard]] int get_height() const { return height_; } - [[nodiscard]] ImTextureID get_texture_id() const { return descriptor_set; } - [[nodiscard]] vk::DescriptorImageInfo get_descriptor_info() const { - vk::DescriptorImageInfo info; - info.setImageLayout(vk::ImageLayout::eShaderReadOnlyOptimal); - info.setImageView(image_view); - info.setSampler(sampler); - return info; - } - - void init(uint32_t width, uint32_t height, vk::Format in_format) { - width_ = width; - height_ = height; - format = in_format; - on_init(); - } - void resize(uint32_t width, uint32_t height) { - if (width_ == width && height_ == height) { - return; - } - destroy(); - init(width, height, format); - } - void draw() const { - ImGui::Image(get_texture_id(), ImVec2(static_cast(get_width()), static_cast(get_height()))); - } - virtual void destroy() { - const auto r = application::get()->get_renderer(); - const auto& device = r->device; - device.destroySampler(sampler); - device.destroyImageView(image_view); - device.destroyImage(image); - device.freeMemory(memory); - ImGui_ImplVulkan_RemoveTexture(descriptor_set); - sampler = nullptr; - image_view = nullptr; - image = nullptr; - memory = nullptr; - descriptor_set = nullptr; - } - - vk::Image image; - vk::ImageView image_view; - vk::Sampler sampler; - vk::DescriptorSet descriptor_set; - vk::DeviceMemory memory; - vk::Format format; -protected: - virtual void on_init() = 0; - uint32_t width_; - uint32_t height_; -}; diff --git a/core/rhi/renderer.cpp b/core/rhi/renderer.cpp deleted file mode 100644 index deda229..0000000 --- a/core/rhi/renderer.cpp +++ /dev/null @@ -1,464 +0,0 @@ -#include "renderer.h" - -#include "imgui_impl_glfw.h" - -#include "application/application.h" -#include "texture.h" - - - -#ifdef APP_USE_VULKAN_DEBUG_REPORT -static VKAPI_ATTR VkBool32 VKAPI_CALL on_debug_report(VkDebugReportFlagsEXT flags, VkDebugReportObjectTypeEXT objectType, uint64_t object, size_t location, int32_t messageCode, const char* pLayerPrefix, const char* pMessage, void* pUserData) -{ - (void)flags; (void)object; (void)location; (void)messageCode; (void)pUserData; (void)pLayerPrefix; // Unused arguments - fprintf(stderr, "[vulkan] Debug report from ObjectType: %i\nMessage: %s\n\n", objectType, pMessage); - return VK_FALSE; -} -#endif // APP_USE_VULKAN_DEBUG_REPORT - -static bool is_extension_available(const std::vector& properties, const char* extension) { - return std::ranges::any_of(properties, [extension](const vk::ExtensionProperties& p) { - return strcmp(p.extensionName, extension) == 0; - }); -} - -vk::CommandPool renderer::get_command_pool() const { - return main_window_data.Frames[main_window_data.FrameIndex].CommandPool; -} - -vk::CommandBuffer renderer::create_command_buffer(vk::CommandBufferLevel level, bool begin) const { - vk::CommandBufferAllocateInfo alloc_info; - alloc_info.setCommandPool(get_command_pool()); - alloc_info.setLevel(level); - alloc_info.setCommandBufferCount(1); - - vk::CommandBuffer command_buffer; - auto err = device.allocateCommandBuffers(&alloc_info, &command_buffer); - check_vk_result(err); - - // If requested, also start the new command buffer - if (begin) { - vk::CommandBufferBeginInfo begin_info; - begin_info.setFlags(vk::CommandBufferUsageFlagBits::eOneTimeSubmit); - command_buffer.begin(begin_info); - } - - return command_buffer; -} - -void renderer::end_command_buffer(vk::CommandBuffer command_buffer, bool use_fence) const { - command_buffer.end(); - - if (use_fence) { - vk::FenceCreateInfo fence_create_info = {}; - vk::Fence fence = device.createFence(fence_create_info); - - vk::SubmitInfo submit_info; - submit_info.setCommandBuffers(command_buffer); - queue.submit(submit_info, fence); - - const auto err = device.waitForFences(1, &fence, VK_TRUE, 100000000000); - check_vk_result(err); - - device.destroyFence(fence); - } - else { - vk::SubmitInfo submit_info; - submit_info.setCommandBuffers(command_buffer); - queue.submit(submit_info, nullptr); - } -} - -void renderer::init_vulkan(GLFWwindow* window_handle) { - std::vector extensions; - uint32_t extensions_count = 0; - const char** glfw_extensions = glfwGetRequiredInstanceExtensions(&extensions_count); - for (uint32_t i = 0; i < extensions_count; i++) - extensions.push_back(glfw_extensions[i]); - setup_vulkan(extensions); - - // Create Window Surface - VkSurfaceKHR surface; - VkResult err = glfwCreateWindowSurface(instance, window_handle, reinterpret_cast(allocator), &surface); - check_vk_result(err); - - // Create Framebuffers - int w, h; - glfwGetFramebufferSize(window_handle, &w, &h); - setup_vulkan_window(surface, w, h); - - ImGui_ImplGlfw_InitForVulkan(window_handle, true); - - ImGui_ImplVulkan_InitInfo init_info = {}; - init_info.Instance = instance; - init_info.PhysicalDevice = physical_device; - init_info.Device = device; - init_info.QueueFamily = queue_family; - init_info.Queue = queue; - init_info.PipelineCache = VK_NULL_HANDLE; - init_info.DescriptorPool = descriptor_pool; - init_info.RenderPass = main_window_data.RenderPass; - init_info.Subpass = 0; - init_info.MinImageCount = min_image_count; - init_info.ImageCount = main_window_data.ImageCount; - init_info.MSAASamples = VK_SAMPLE_COUNT_1_BIT; - init_info.Allocator = reinterpret_cast(allocator); - init_info.CheckVkResultFn = check_vk_result; - ImGui_ImplVulkan_Init(&init_info); -} - -vk::PhysicalDevice renderer::setup_vulkan_select_physical_device() const { - const std::vector gpus = instance.enumeratePhysicalDevices(); - IM_ASSERT(!gpus.empty()); - - // If a number >1 of GPUs got reported, find discrete GPU if present, or use first one available. This covers - // most common cases (multi-gpu/integrated+dedicated graphics). Handling more complicated setups (multiple - // dedicated GPUs) is out of scope of this sample. - for (auto& device: gpus) { - if (const auto properties = device.getProperties(); properties.deviceType == vk::PhysicalDeviceType::eDiscreteGpu) - return device; - } - - // Use first GPU (Integrated) is a Discrete one is not available. - if (!gpus.empty()) - return gpus[0]; - return VK_NULL_HANDLE; -} - -void renderer::setup_vulkan(std::vector instance_extensions) { - // Create Vulkan Instance - { - vk::InstanceCreateInfo create_info; - - // VkInstanceCreateInfo create_info = {}; - // create_info.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO; - - // Enumerate available extensions - auto properties = vk::enumerateInstanceExtensionProperties(); - - // Enable required extensions - if (is_extension_available(properties, VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME)) - instance_extensions.push_back(VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME); -#ifdef VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME - if (is_extension_available(properties, VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME)) { - instance_extensions.push_back(VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME); - create_info.flags |= vk::InstanceCreateFlagBits::eEnumeratePortabilityKHR; - } -#endif - // Enabling validation layers -#ifdef APP_USE_VULKAN_DEBUG_REPORT - const char* layers[] = { "VK_LAYER_KHRONOS_validation" }; - create_info.enabledLayerCount = 1; - create_info.ppEnabledLayerNames = layers; - instance_extensions.push_back("VK_EXT_debug_report"); -#endif - - // Create Vulkan Instance - create_info.setPEnabledExtensionNames(instance_extensions); - instance = vk::createInstance(create_info, allocator); - - // Setup the debug report callback -#ifdef APP_USE_VULKAN_DEBUG_REPORT - auto vkCreateDebugReportCallbackEXT = (PFN_vkCreateDebugReportCallbackEXT)vkGetInstanceProcAddr(instance, "vkCreateDebugReportCallbackEXT"); - IM_ASSERT(vkCreateDebugReportCallbackEXT != nullptr); - VkDebugReportCallbackCreateInfoEXT debug_report_ci = {}; - debug_report_ci.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CALLBACK_CREATE_INFO_EXT; - debug_report_ci.flags = VK_DEBUG_REPORT_ERROR_BIT_EXT | VK_DEBUG_REPORT_WARNING_BIT_EXT | VK_DEBUG_REPORT_PERFORMANCE_WARNING_BIT_EXT; - debug_report_ci.pfnCallback = on_debug_report; - debug_report_ci.pUserData = nullptr; - auto err = vkCreateDebugReportCallbackEXT(instance, &debug_report_ci, (VkAllocationCallbacks*)allocator, &debug_report); - check_vk_result(err); -#endif - } - - // Select Physical Device (GPU) - physical_device = setup_vulkan_select_physical_device(); - - // Select graphics queue family - { - const auto queues = physical_device.getQueueFamilyProperties(); - for (uint32_t i = 0; i < queues.size(); i++) { - if (queues[i].queueFlags & vk::QueueFlagBits::eGraphics) { - queue_family = i; - break; - } - } - IM_ASSERT(queue_family != static_cast(-1)); - } - - // Create Logical Device (with 1 queue) - { - std::vector device_extensions; - device_extensions.emplace_back("VK_KHR_swapchain"); - - // Enumerate physical device extension - auto properties = physical_device.enumerateDeviceExtensionProperties(); - -#ifdef VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME - if (is_extension_available(properties, VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME)) - device_extensions.push_back(VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME); -#endif - - std::vector queue_priority = {1.0f}; - vk::DeviceQueueCreateInfo queue_info; - queue_info.setQueueFamilyIndex(queue_family); - queue_info.setQueuePriorities(queue_priority); - - vk::DeviceCreateInfo create_info; - create_info.setQueueCreateInfos(queue_info); - create_info.setPEnabledExtensionNames(device_extensions); - device = physical_device.createDevice(create_info, allocator); - queue = device.getQueue(queue_family, 0); - } - - // Create Descriptor Pool - // The example only requires a single combined image sampler descriptor for the font image and only uses one descriptor set (for that) - // If you wish to load e.g. additional textures you may need to alter pools sizes. - { - std::vector pool_sizes; - pool_sizes.emplace_back(vk::DescriptorType::eCombinedImageSampler, 1); - - vk::DescriptorPoolCreateInfo descriptor_pool_create_info; - descriptor_pool_create_info.setMaxSets(16); - descriptor_pool_create_info.setPoolSizes(pool_sizes); - - descriptor_pool = device.createDescriptorPool(descriptor_pool_create_info); - } -} - -// All the ImGui_ImplVulkanH_XXX structures/functions are optional helpers used by the demo. -// Your real engine/app may not use them. -void renderer::setup_vulkan_window(VkSurfaceKHR surface, int width, - int height) { - main_window_data.Surface = surface; - - // Check for WSI support - vk::Bool32 res; - const auto err = physical_device.getSurfaceSupportKHR(queue_family, main_window_data.Surface, &res); - check_vk_result(err); - if (res != VK_TRUE) { - fprintf(stderr, "Error no WSI support on physical device 0\n"); - exit(-1); - } - - // Select Surface Format - constexpr VkFormat requestSurfaceImageFormat[] = { - VK_FORMAT_B8G8R8A8_UNORM, VK_FORMAT_R8G8B8A8_UNORM, VK_FORMAT_B8G8R8_UNORM, VK_FORMAT_R8G8B8_UNORM - }; - constexpr VkColorSpaceKHR requestSurfaceColorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR; - main_window_data.SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(physical_device, main_window_data.Surface, requestSurfaceImageFormat, - (size_t) IM_ARRAYSIZE(requestSurfaceImageFormat), - requestSurfaceColorSpace); - - // Select Present Mode -#ifdef APP_USE_UNLIMITED_FRAME_RATE - VkPresentModeKHR present_modes[] = { VK_PRESENT_MODE_MAILBOX_KHR, VK_PRESENT_MODE_IMMEDIATE_KHR, VK_PRESENT_MODE_FIFO_KHR }; -#else - VkPresentModeKHR present_modes[] = {VK_PRESENT_MODE_FIFO_KHR}; -#endif - main_window_data.PresentMode = ImGui_ImplVulkanH_SelectPresentMode(physical_device, main_window_data.Surface, &present_modes[0], - IM_ARRAYSIZE(present_modes)); - //printf("[vulkan] Selected PresentMode = %d\n", wd->PresentMode); - - // Create SwapChain, RenderPass, Framebuffer, etc. - IM_ASSERT(min_image_count >= 2); - - ImGui_ImplVulkanH_CreateOrResizeWindow(instance, physical_device, device, &main_window_data, queue_family, - reinterpret_cast(allocator), width, - height, min_image_count); -} - -void renderer::cleanup_vulkan() const { - device.destroyDescriptorPool(descriptor_pool); -#ifdef APP_USE_VULKAN_DEBUG_REPORT - // Remove the debug report callback - auto vkDestroyDebugReportCallbackEXT = (PFN_vkDestroyDebugReportCallbackEXT)vkGetInstanceProcAddr(instance, "vkDestroyDebugReportCallbackEXT"); - vkDestroyDebugReportCallbackEXT(instance, debug_report, (VkAllocationCallbacks*)allocator); -#endif // APP_USE_VULKAN_DEBUG_REPORT - - device.destroy(); - instance.destroy(); -} - -void renderer::cleanup_vulkan_window() { - ImGui_ImplVulkanH_DestroyWindow(instance, device, &main_window_data, - reinterpret_cast(allocator)); -} - -void renderer::frame_render(ImDrawData* draw_data) { - vk::Semaphore image_acquired_semaphore = main_window_data.FrameSemaphores[main_window_data.SemaphoreIndex].ImageAcquiredSemaphore; - vk::Semaphore render_complete_semaphore = main_window_data.FrameSemaphores[main_window_data.SemaphoreIndex].RenderCompleteSemaphore; - - vk::Result err = device.acquireNextImageKHR(main_window_data.Swapchain, UINT64_MAX, image_acquired_semaphore, VK_NULL_HANDLE, - &main_window_data.FrameIndex); - if (err == vk::Result::eErrorOutOfDateKHR || err == vk::Result::eSuboptimalKHR) { - swap_chain_rebuild_ = true; - return; - } - - check_vk_result(err); - - ImGui_ImplVulkanH_Frame* fd = &main_window_data.Frames[main_window_data.FrameIndex]; - const vk::CommandBuffer cmd_buf = fd->CommandBuffer; - const vk::Fence fence = fd->Fence; { - err = device.waitForFences(1, &fence, VK_TRUE, UINT64_MAX); - - // wait indefinitely instead of periodically checking - check_vk_result(err); - - err = device.resetFences(1, &fence); - check_vk_result(err); - } { - const vk::CommandPool command_pool = fd->CommandPool; - device.resetCommandPool(command_pool); - - vk::CommandBufferBeginInfo info = {}; - info.setFlags(vk::CommandBufferUsageFlagBits::eOneTimeSubmit); - - cmd_buf.begin(info); - } { - const vk::Framebuffer framebuffer = fd->Framebuffer; - const vk::RenderPass render_pass = main_window_data.RenderPass; - - const auto clear_color = main_window_data.ClearValue.color.float32; - const auto clear_depth = main_window_data.ClearValue.depthStencil.depth; - const auto clear_stencil = main_window_data.ClearValue.depthStencil.stencil; - - vk::ClearValue clear_value; - clear_value.color = vk::ClearColorValue(std::array{ - clear_color[0], clear_color[1], clear_color[2], clear_color[3] - }); - clear_value.depthStencil = vk::ClearDepthStencilValue(clear_depth, clear_stencil); - - std::vector clear_values; - clear_values.emplace_back(clear_value); - - vk::RenderPassBeginInfo info; - info.setRenderPass(render_pass); - info.setFramebuffer(framebuffer); - info.renderArea.extent.width = main_window_data.Width; - info.renderArea.extent.height = main_window_data.Height; - info.setClearValues(clear_values); - - cmd_buf.beginRenderPass(info, vk::SubpassContents::eInline); - } - - // Record dear imgui primitives into command buffer - ImGui_ImplVulkan_RenderDrawData(draw_data, fd->CommandBuffer); - - // Submit command buffer - vkCmdEndRenderPass(fd->CommandBuffer); { - vk::PipelineStageFlags wait_stage = vk::PipelineStageFlagBits::eColorAttachmentOutput; - - vk::SubmitInfo info; - info.setWaitSemaphores(image_acquired_semaphore); - info.setWaitDstStageMask(wait_stage); - info.setCommandBuffers(cmd_buf); - info.setSignalSemaphores(render_complete_semaphore); - - cmd_buf.end(); - err = queue.submit(1, &info, fence); - check_vk_result(err); - } -} - -void renderer::frame_present() { - if (swap_chain_rebuild_) - return; - vk::Semaphore render_complete_semaphore = main_window_data.FrameSemaphores[main_window_data.SemaphoreIndex].RenderCompleteSemaphore; - vk::SwapchainKHR swapchain = main_window_data.Swapchain; - uint32_t frame_index = main_window_data.FrameIndex; - - vk::PresentInfoKHR info; - info.setWaitSemaphores(render_complete_semaphore); - info.setSwapchains(swapchain); - info.setImageIndices(frame_index); - - try { - (void)queue.presentKHR(info); - } catch (const vk::OutOfDateKHRError& e) { - swap_chain_rebuild_ = true; - return; - } - main_window_data.SemaphoreIndex = (main_window_data.SemaphoreIndex + 1) % main_window_data.SemaphoreCount; // Now we can use the next set of semaphores -} - -void renderer::pre_init() { - glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API); -} - -bool renderer::init(GLFWwindow* window_handle) { - if (has_initialized_) - return true; - - if (!glfwVulkanSupported()) { - throw std::runtime_error("Vulkan not supported"); - } - init_vulkan(window_handle); - - has_initialized_ = true; - return true; -} - -void renderer::shutdown() { - ImGui_ImplGlfw_Shutdown(); - ImGui_ImplVulkan_Shutdown(); - - cleanup_vulkan_window(); - cleanup_vulkan(); -} - -void renderer::new_frame(GLFWwindow* window_handle) { - // Resize swap chain? - if (swap_chain_rebuild_) - { - int width, height; - glfwGetFramebufferSize(window_handle, &width, &height); - if (width > 0 && height > 0) - { - ImGui_ImplVulkan_SetMinImageCount(min_image_count); - ImGui_ImplVulkanH_CreateOrResizeWindow(instance, physical_device, device, &main_window_data, queue_family, reinterpret_cast(allocator), width, height, min_image_count); - main_window_data.FrameIndex = 0; - swap_chain_rebuild_ = false; - } - } - - // Start the Dear ImGui frame - ImGui_ImplVulkan_NewFrame(); - ImGui_ImplGlfw_NewFrame(); - ImGui::NewFrame(); -} - -void renderer::end_frame(GLFWwindow* window_handle) { - ImGuiIO& io = ImGui::GetIO(); - - // Rendering - ImGui::Render(); - ImDrawData* main_draw_data = ImGui::GetDrawData(); - const bool main_is_minimized = (main_draw_data->DisplaySize.x <= 0.0f || main_draw_data->DisplaySize.y <= 0.0f); - main_window_data.ClearValue.color.float32[0] = clear_color.x * clear_color.w; - main_window_data.ClearValue.color.float32[1] = clear_color.y * clear_color.w; - main_window_data.ClearValue.color.float32[2] = clear_color.z * clear_color.w; - main_window_data.ClearValue.color.float32[3] = clear_color.w; - if (!main_is_minimized) - frame_render(main_draw_data); - - // Update and Render additional Platform Windows - if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable) - { - ImGui::UpdatePlatformWindows(); - ImGui::RenderPlatformWindowsDefault(); - } - - // Present Main Platform Window - if (!main_is_minimized) - frame_present(); -} - -std::shared_ptr renderer::create_texture(const uint8_t* data, int width, int height, vk::Format format) { - auto out = std::make_shared(); - out->init(width, height, format); - if (data) - out->upload(data, width * height * 4); - return out; -} diff --git a/core/rhi/renderer.h b/core/rhi/renderer.h deleted file mode 100644 index 9ad9dd7..0000000 --- a/core/rhi/renderer.h +++ /dev/null @@ -1,88 +0,0 @@ -#pragma once - -#include "imgui_impl_vulkan.h" - -#include "imgui.h" -#include "GLFW/glfw3.h" - -#include - -// #ifdef _DEBUG -// #define APP_USE_VULKAN_DEBUG_REPORT -// #endif - -#define APP_USE_UNLIMITED_FRAME_RATE - -class render_target; -class texture; -constexpr ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f); -constexpr float clear_color_with_alpha[4] = { - clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w -}; - -static void check_vk_result(vk::Result err) { - if (err == vk::Result::eSuccess) - return; - - spdlog::error("[vulkan] Error: VkResult = {}", vk::to_string(err)); - abort(); -} - -static void check_vk_result(VkResult err) { - if (err == VK_SUCCESS) - return; - if (err < 0) { - spdlog::error("[vulkan] Error: VkResult = {}", (int)err); - abort(); - } -} - -class renderer { -public: - virtual ~renderer() = default; - - void pre_init(); - - bool init(GLFWwindow* window_handle); - - virtual void shutdown(); - - void new_frame(GLFWwindow* window_handle); - - void end_frame(GLFWwindow* window_handle); - - static CORE_API std::shared_ptr create_texture(const uint8_t* data, int width, int height, vk::Format format); - - void set_vsync(const bool vsync) { vsync_ = vsync; } - - vk::AllocationCallbacks* allocator = nullptr; - vk::Instance instance = VK_NULL_HANDLE; - vk::PhysicalDevice physical_device = VK_NULL_HANDLE; - vk::Device device = VK_NULL_HANDLE; - uint32_t queue_family = (uint32_t) -1; - vk::Queue queue = VK_NULL_HANDLE; - vk::DescriptorPool descriptor_pool = VK_NULL_HANDLE; -#ifdef APP_USE_VULKAN_DEBUG_REPORT - VkDebugReportCallbackEXT debug_report = VK_NULL_HANDLE; -#endif - [[nodiscard]] vk::CommandPool get_command_pool() const; - [[nodiscard]] vk::CommandBuffer create_command_buffer(vk::CommandBufferLevel level, bool begin) const; - void end_command_buffer(vk::CommandBuffer command_buffer, bool use_fence = false) const; - - ImGui_ImplVulkanH_Window main_window_data; - int min_image_count = 2; -protected: - void init_vulkan(GLFWwindow* window_handle); - [[nodiscard]] vk::PhysicalDevice setup_vulkan_select_physical_device() const; - void setup_vulkan(std::vector instance_extensions); - void setup_vulkan_window(VkSurfaceKHR surface, int width, int height); - void cleanup_vulkan() const; - void cleanup_vulkan_window(); - void frame_render(ImDrawData* draw_data); - void frame_present(); - - bool has_initialized_ = false; - bool swap_chain_rebuild_ = false; - - bool vsync_ = true; -}; diff --git a/core/rhi/texture.cpp b/core/rhi/texture.cpp deleted file mode 100644 index 430b5fc..0000000 --- a/core/rhi/texture.cpp +++ /dev/null @@ -1,130 +0,0 @@ -#include "texture.h" - - -#include "buffer_vk.h" -#include "application/application.h" -#include "renderer.h" -#include "utils/utils.hpp" - - -texture::texture() { - memory = nullptr; -} - -void texture::upload(const void* data, size_t size) { - renderer* r = application::get()->get_renderer(); - const vk::Device& device = r->device; - - // Create Upload Buffer - vk::BufferCreateInfo buffer_info; - buffer_info.setSize(size); - buffer_info.setUsage(vk::BufferUsageFlagBits::eTransferSrc); - buffer_info.setSharingMode(vk::SharingMode::eExclusive); - vk::Buffer upload_buffer = device.createBuffer(buffer_info); - - vk::MemoryRequirements req = device.getBufferMemoryRequirements(upload_buffer); - uint32_t upload_memory_type = vk::su::findMemoryType(r->physical_device.getMemoryProperties(), req.memoryTypeBits, - vk::MemoryPropertyFlagBits::eHostVisible); - vk::MemoryAllocateInfo alloc_info; - alloc_info.setAllocationSize(req.size); - alloc_info.setMemoryTypeIndex(upload_memory_type); - vk::DeviceMemory upload_memory = device.allocateMemory(alloc_info); - device.bindBufferMemory(upload_buffer, upload_memory, 0); - - void* p = device.mapMemory(upload_memory, 0, size); - memcpy(p, data, size); - vk::MappedMemoryRange memory_range; - memory_range.setMemory(upload_memory); - memory_range.setSize(size); - device.flushMappedMemoryRanges(memory_range); - device.unmapMemory(upload_memory); - - const vk::CommandBuffer command_buffer = r->create_command_buffer(vk::CommandBufferLevel::ePrimary, true); - - vk::ImageMemoryBarrier copy_barrier; - copy_barrier.setDstAccessMask(vk::AccessFlagBits::eTransferWrite); - copy_barrier.setOldLayout(vk::ImageLayout::eUndefined); - copy_barrier.setNewLayout(vk::ImageLayout::eTransferDstOptimal); - copy_barrier.setSrcQueueFamilyIndex(VK_QUEUE_FAMILY_IGNORED); - copy_barrier.setDstQueueFamilyIndex(VK_QUEUE_FAMILY_IGNORED); - copy_barrier.setImage(image); - copy_barrier.setSubresourceRange({vk::ImageAspectFlagBits::eColor, 0, 1, 0, 1}); - command_buffer.pipelineBarrier(vk::PipelineStageFlagBits::eHost, vk::PipelineStageFlagBits::eTransfer, {}, {}, {}, - copy_barrier); - - vk::BufferImageCopy region; - region.setImageSubresource({vk::ImageAspectFlagBits::eColor, 0, 0, 1}); - region.setImageExtent({static_cast(width_), static_cast(height_), 1}); - command_buffer.copyBufferToImage(upload_buffer, image, vk::ImageLayout::eTransferDstOptimal, region); - - vk::ImageMemoryBarrier use_barrier; - use_barrier.setSrcAccessMask(vk::AccessFlagBits::eTransferWrite); - use_barrier.setDstAccessMask(vk::AccessFlagBits::eShaderRead); - use_barrier.setOldLayout(vk::ImageLayout::eTransferDstOptimal); - use_barrier.setNewLayout(vk::ImageLayout::eShaderReadOnlyOptimal); - use_barrier.setSrcQueueFamilyIndex(VK_QUEUE_FAMILY_IGNORED); - use_barrier.setDstQueueFamilyIndex(VK_QUEUE_FAMILY_IGNORED); - use_barrier.setImage(image); - use_barrier.setSubresourceRange({vk::ImageAspectFlagBits::eColor, 0, 1, 0, 1}); - command_buffer.pipelineBarrier(vk::PipelineStageFlagBits::eTransfer, vk::PipelineStageFlagBits::eFragmentShader, {}, - {}, {}, use_barrier); - - r->end_command_buffer(command_buffer); - device.waitIdle(); - - device.destroyBuffer(upload_buffer); - device.freeMemory(upload_memory); - - // device.freeCommandBuffers(command_pool, command_buffer); -} - -void texture::on_init() { - const renderer* r = application::get()->get_renderer(); - const vk::Device& device = r->device; - const vk::PhysicalDevice& physical_device = r->physical_device; - - vk::ImageCreateInfo image_info; - image_info.setImageType(vk::ImageType::e2D); - image_info.setFormat(format); - image_info.setExtent({ width_, height_, 1 }); - image_info.setMipLevels(1); - image_info.setArrayLayers(1); - image_info.setSamples(vk::SampleCountFlagBits::e1); - image_info.setTiling(vk::ImageTiling::eOptimal); - image_info.setUsage(vk::ImageUsageFlagBits::eSampled | vk::ImageUsageFlagBits::eTransferDst | vk::ImageUsageFlagBits::eStorage); - image_info.setSharingMode(vk::SharingMode::eExclusive); - image_info.setInitialLayout(vk::ImageLayout::eUndefined); - image = device.createImage(image_info); - - const vk::PhysicalDeviceMemoryProperties memory_properties = physical_device.getMemoryProperties(); - const vk::MemoryRequirements memory_requirements = device.getImageMemoryRequirements(image); - const uint32_t memory_type = vk::su::findMemoryType(memory_properties, memory_requirements.memoryTypeBits, - vk::MemoryPropertyFlagBits::eDeviceLocal); - - vk::MemoryAllocateInfo memory_allocate_info; - memory_allocate_info.setAllocationSize(memory_requirements.size); - memory_allocate_info.setMemoryTypeIndex(memory_type); - memory = device.allocateMemory(memory_allocate_info); - device.bindImageMemory(image, memory, 0); - - vk::ImageViewCreateInfo view_info; - view_info.setImage(image); - view_info.setViewType(vk::ImageViewType::e2D); - view_info.setFormat(format); - view_info.setSubresourceRange({vk::ImageAspectFlagBits::eColor, 0, 1, 0, 1}); - image_view = device.createImageView(view_info); - - vk::SamplerCreateInfo sampler_info; - sampler_info.setMagFilter(vk::Filter::eLinear); - sampler_info.setMinFilter(vk::Filter::eLinear); - sampler_info.setMipmapMode(vk::SamplerMipmapMode::eLinear); - sampler_info.setAddressModeU(vk::SamplerAddressMode::eRepeat); - sampler_info.setAddressModeV(vk::SamplerAddressMode::eRepeat); - sampler_info.setAddressModeW(vk::SamplerAddressMode::eRepeat); - sampler_info.setMinLod(-1000); - sampler_info.setMaxLod(1000); - sampler_info.setMaxAnisotropy(1); - sampler = device.createSampler(sampler_info); - - descriptor_set = ImGui_ImplVulkan_AddTexture(sampler, image_view, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL); -} diff --git a/core/rhi/texture.h b/core/rhi/texture.h deleted file mode 100644 index 36a639d..0000000 --- a/core/rhi/texture.h +++ /dev/null @@ -1,17 +0,0 @@ -#pragma once -#include "imgui.h" -#include - -#include "buffer_vk.h" -#include "render_resource.h" - -class texture : public render_resource { -public: - texture(); - - bool is_valid() const { return image_view; } - - void upload(const void* data, size_t size); -protected: - void on_init() override; -}; diff --git a/core/rhi/utils/utils.cpp b/core/rhi/utils/utils.cpp deleted file mode 100644 index 64eb1bc..0000000 --- a/core/rhi/utils/utils.cpp +++ /dev/null @@ -1,1074 +0,0 @@ -// Copyright(c) 2019, NVIDIA CORPORATION. All rights reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// - -#if defined( _MSC_VER ) -// no need to ignore any warnings with MSVC -#elif defined( __clang__ ) -# pragma clang diagnostic ignored "-Wmissing-braces" -#elif defined( __GNUC__ ) -// no need to ignore any warnings with GCC -#else -// unknow compiler... just ignore the warnings for yourselves ;) -#endif - -#include "utils.hpp" - -#include -#include -#include -#if defined( VULKAN_HPP_NO_TO_STRING ) -# include -#endif -#include - -#if ( VULKAN_HPP_DISPATCH_LOADER_DYNAMIC == 1 ) -VULKAN_HPP_DEFAULT_DISPATCH_LOADER_DYNAMIC_STORAGE -#endif - -namespace vk -{ - namespace su - { - vk::DeviceMemory allocateDeviceMemory( vk::Device const & device, - vk::PhysicalDeviceMemoryProperties const & memoryProperties, - vk::MemoryRequirements const & memoryRequirements, - vk::MemoryPropertyFlags memoryPropertyFlags ) - { - uint32_t memoryTypeIndex = findMemoryType( memoryProperties, memoryRequirements.memoryTypeBits, memoryPropertyFlags ); - - return device.allocateMemory( vk::MemoryAllocateInfo( memoryRequirements.size, memoryTypeIndex ) ); - } - - bool contains( std::vector const & extensionProperties, std::string const & extensionName ) - { - auto propertyIterator = std::find_if( extensionProperties.begin(), - extensionProperties.end(), - [&extensionName]( vk::ExtensionProperties const & ep ) { return extensionName == ep.extensionName; } ); - return ( propertyIterator != extensionProperties.end() ); - } - - vk::DescriptorPool createDescriptorPool( vk::Device const & device, std::vector const & poolSizes ) - { - assert( !poolSizes.empty() ); - uint32_t maxSets = - std::accumulate( poolSizes.begin(), poolSizes.end(), 0, []( uint32_t sum, vk::DescriptorPoolSize const & dps ) { return sum + dps.descriptorCount; } ); - assert( 0 < maxSets ); - - vk::DescriptorPoolCreateInfo descriptorPoolCreateInfo( vk::DescriptorPoolCreateFlagBits::eFreeDescriptorSet, maxSets, poolSizes ); - return device.createDescriptorPool( descriptorPoolCreateInfo ); - } - - vk::DescriptorSetLayout createDescriptorSetLayout( vk::Device const & device, - std::vector> const & bindingData, - vk::DescriptorSetLayoutCreateFlags flags ) - { - std::vector bindings( bindingData.size() ); - for ( size_t i = 0; i < bindingData.size(); i++ ) - { - bindings[i] = vk::DescriptorSetLayoutBinding( - checked_cast( i ), std::get<0>( bindingData[i] ), std::get<1>( bindingData[i] ), std::get<2>( bindingData[i] ) ); - } - return device.createDescriptorSetLayout( vk::DescriptorSetLayoutCreateInfo( flags, bindings ) ); - } - - vk::Device createDevice( vk::PhysicalDevice const & physicalDevice, - uint32_t queueFamilyIndex, - std::vector const & extensions, - vk::PhysicalDeviceFeatures const * physicalDeviceFeatures, - void const * pNext ) - { - std::vector enabledExtensions; - enabledExtensions.reserve( extensions.size() ); - for ( auto const & ext : extensions ) - { - enabledExtensions.push_back( ext.data() ); - } - - float queuePriority = 0.0f; - vk::DeviceQueueCreateInfo deviceQueueCreateInfo( {}, queueFamilyIndex, 1, &queuePriority ); - vk::DeviceCreateInfo deviceCreateInfo( {}, deviceQueueCreateInfo, {}, enabledExtensions, physicalDeviceFeatures, pNext ); - - vk::Device device = physicalDevice.createDevice( deviceCreateInfo ); -#if ( VULKAN_HPP_DISPATCH_LOADER_DYNAMIC == 1 ) - // initialize function pointers for instance - VULKAN_HPP_DEFAULT_DISPATCHER.init( device ); -#endif - return device; - } - - std::vector createFramebuffers( vk::Device const & device, - vk::RenderPass & renderPass, - std::vector const & imageViews, - vk::ImageView const & depthImageView, - vk::Extent2D const & extent ) - { - vk::ImageView attachments[2]; - attachments[1] = depthImageView; - - vk::FramebufferCreateInfo framebufferCreateInfo( - vk::FramebufferCreateFlags(), renderPass, depthImageView ? 2 : 1, attachments, extent.width, extent.height, 1 ); - std::vector framebuffers; - framebuffers.reserve( imageViews.size() ); - for ( auto const & view : imageViews ) - { - attachments[0] = view; - framebuffers.push_back( device.createFramebuffer( framebufferCreateInfo ) ); - } - - return framebuffers; - } - - vk::Pipeline createGraphicsPipeline( vk::Device const & device, - vk::PipelineCache const & pipelineCache, - std::pair const & vertexShaderData, - std::pair const & fragmentShaderData, - uint32_t vertexStride, - std::vector> const & vertexInputAttributeFormatOffset, - vk::FrontFace frontFace, - bool depthBuffered, - vk::PipelineLayout const & pipelineLayout, - vk::RenderPass const & renderPass ) - { - std::array pipelineShaderStageCreateInfos = { - vk::PipelineShaderStageCreateInfo( - vk::PipelineShaderStageCreateFlags(), vk::ShaderStageFlagBits::eVertex, vertexShaderData.first, "main", vertexShaderData.second ), - vk::PipelineShaderStageCreateInfo( - vk::PipelineShaderStageCreateFlags(), vk::ShaderStageFlagBits::eFragment, fragmentShaderData.first, "main", fragmentShaderData.second ) - }; - - std::vector vertexInputAttributeDescriptions; - vk::PipelineVertexInputStateCreateInfo pipelineVertexInputStateCreateInfo; - vk::VertexInputBindingDescription vertexInputBindingDescription( 0, vertexStride ); - - if ( 0 < vertexStride ) - { - vertexInputAttributeDescriptions.reserve( vertexInputAttributeFormatOffset.size() ); - for ( uint32_t i = 0; i < vertexInputAttributeFormatOffset.size(); i++ ) - { - vertexInputAttributeDescriptions.emplace_back( i, 0, vertexInputAttributeFormatOffset[i].first, vertexInputAttributeFormatOffset[i].second ); - } - pipelineVertexInputStateCreateInfo.setVertexBindingDescriptions( vertexInputBindingDescription ); - pipelineVertexInputStateCreateInfo.setVertexAttributeDescriptions( vertexInputAttributeDescriptions ); - } - - vk::PipelineInputAssemblyStateCreateInfo pipelineInputAssemblyStateCreateInfo( vk::PipelineInputAssemblyStateCreateFlags(), - vk::PrimitiveTopology::eTriangleList ); - - vk::PipelineViewportStateCreateInfo pipelineViewportStateCreateInfo( vk::PipelineViewportStateCreateFlags(), 1, nullptr, 1, nullptr ); - - vk::PipelineRasterizationStateCreateInfo pipelineRasterizationStateCreateInfo( vk::PipelineRasterizationStateCreateFlags(), - false, - false, - vk::PolygonMode::eFill, - vk::CullModeFlagBits::eBack, - frontFace, - false, - 0.0f, - 0.0f, - 0.0f, - 1.0f ); - - vk::PipelineMultisampleStateCreateInfo pipelineMultisampleStateCreateInfo( {}, vk::SampleCountFlagBits::e1 ); - - vk::StencilOpState stencilOpState( vk::StencilOp::eKeep, vk::StencilOp::eKeep, vk::StencilOp::eKeep, vk::CompareOp::eAlways ); - vk::PipelineDepthStencilStateCreateInfo pipelineDepthStencilStateCreateInfo( - vk::PipelineDepthStencilStateCreateFlags(), depthBuffered, depthBuffered, vk::CompareOp::eLessOrEqual, false, false, stencilOpState, stencilOpState ); - - vk::ColorComponentFlags colorComponentFlags( vk::ColorComponentFlagBits::eR | vk::ColorComponentFlagBits::eG | vk::ColorComponentFlagBits::eB | - vk::ColorComponentFlagBits::eA ); - vk::PipelineColorBlendAttachmentState pipelineColorBlendAttachmentState( false, - vk::BlendFactor::eZero, - vk::BlendFactor::eZero, - vk::BlendOp::eAdd, - vk::BlendFactor::eZero, - vk::BlendFactor::eZero, - vk::BlendOp::eAdd, - colorComponentFlags ); - vk::PipelineColorBlendStateCreateInfo pipelineColorBlendStateCreateInfo( - vk::PipelineColorBlendStateCreateFlags(), false, vk::LogicOp::eNoOp, pipelineColorBlendAttachmentState, { { 1.0f, 1.0f, 1.0f, 1.0f } } ); - - std::array dynamicStates = { vk::DynamicState::eViewport, vk::DynamicState::eScissor }; - vk::PipelineDynamicStateCreateInfo pipelineDynamicStateCreateInfo( vk::PipelineDynamicStateCreateFlags(), dynamicStates ); - - vk::GraphicsPipelineCreateInfo graphicsPipelineCreateInfo( vk::PipelineCreateFlags(), - pipelineShaderStageCreateInfos, - &pipelineVertexInputStateCreateInfo, - &pipelineInputAssemblyStateCreateInfo, - nullptr, - &pipelineViewportStateCreateInfo, - &pipelineRasterizationStateCreateInfo, - &pipelineMultisampleStateCreateInfo, - &pipelineDepthStencilStateCreateInfo, - &pipelineColorBlendStateCreateInfo, - &pipelineDynamicStateCreateInfo, - pipelineLayout, - renderPass ); - - auto result = device.createGraphicsPipeline( pipelineCache, graphicsPipelineCreateInfo ); - assert( result.result == vk::Result::eSuccess ); - return result.value; - } - - std::vector gatherExtensions( std::vector const & extensions -#if !defined( NDEBUG ) - , - std::vector const & extensionProperties -#endif - ) - { - std::vector enabledExtensions; - enabledExtensions.reserve( extensions.size() ); - for ( auto const & ext : extensions ) - { - assert( std::any_of( - extensionProperties.begin(), extensionProperties.end(), [ext]( vk::ExtensionProperties const & ep ) { return ext == ep.extensionName; } ) ); - enabledExtensions.push_back( ext.data() ); - } -#if !defined( NDEBUG ) - if ( std::none_of( - extensions.begin(), extensions.end(), []( std::string const & extension ) { return extension == VK_EXT_DEBUG_UTILS_EXTENSION_NAME; } ) && - std::any_of( extensionProperties.begin(), - extensionProperties.end(), - []( vk::ExtensionProperties const & ep ) { return ( strcmp( VK_EXT_DEBUG_UTILS_EXTENSION_NAME, ep.extensionName ) == 0 ); } ) ) - { - enabledExtensions.push_back( VK_EXT_DEBUG_UTILS_EXTENSION_NAME ); - } -#endif - return enabledExtensions; - } - - std::vector gatherLayers( std::vector const & layers -#if !defined( NDEBUG ) - , - std::vector const & layerProperties -#endif - ) - { - std::vector enabledLayers; - enabledLayers.reserve( layers.size() ); - for ( auto const & layer : layers ) - { - assert( std::any_of( layerProperties.begin(), layerProperties.end(), [layer]( vk::LayerProperties const & lp ) { return layer == lp.layerName; } ) ); - enabledLayers.push_back( layer.data() ); - } -#if !defined( NDEBUG ) - // Enable standard validation layer to find as much errors as possible! - if ( std::none_of( layers.begin(), layers.end(), []( std::string const & layer ) { return layer == "VK_LAYER_KHRONOS_validation"; } ) && - std::any_of( layerProperties.begin(), - layerProperties.end(), - []( vk::LayerProperties const & lp ) { return ( strcmp( "VK_LAYER_KHRONOS_validation", lp.layerName ) == 0 ); } ) ) - { - enabledLayers.push_back( "VK_LAYER_KHRONOS_validation" ); - } -#endif - return enabledLayers; - } - - vk::Instance createInstance( std::string const & appName, - std::string const & engineName, - std::vector const & layers, - std::vector const & extensions, - uint32_t apiVersion ) - { -#if ( VULKAN_HPP_DISPATCH_LOADER_DYNAMIC == 1 ) - VULKAN_HPP_DEFAULT_DISPATCHER.init(); -#endif - - vk::ApplicationInfo applicationInfo( appName.c_str(), 1, engineName.c_str(), 1, apiVersion ); - std::vector enabledLayers = vk::su::gatherLayers( layers -#if !defined( NDEBUG ) - , - vk::enumerateInstanceLayerProperties() -#endif - ); - std::vector enabledExtensions = vk::su::gatherExtensions( extensions -#if !defined( NDEBUG ) - , - vk::enumerateInstanceExtensionProperties() -#endif - ); - - vk::Instance instance = - vk::createInstance( makeInstanceCreateInfoChain( applicationInfo, enabledLayers, enabledExtensions ).get() ); - -#if ( VULKAN_HPP_DISPATCH_LOADER_DYNAMIC == 1 ) - // initialize function pointers for instance - VULKAN_HPP_DEFAULT_DISPATCHER.init( instance ); -#endif - - return instance; - } - - vk::RenderPass createRenderPass( - vk::Device const & device, vk::Format colorFormat, vk::Format depthFormat, vk::AttachmentLoadOp loadOp, vk::ImageLayout colorFinalLayout ) - { - std::vector attachmentDescriptions; - assert( colorFormat != vk::Format::eUndefined ); - attachmentDescriptions.emplace_back( vk::AttachmentDescriptionFlags(), - colorFormat, - vk::SampleCountFlagBits::e1, - loadOp, - vk::AttachmentStoreOp::eStore, - vk::AttachmentLoadOp::eDontCare, - vk::AttachmentStoreOp::eDontCare, - vk::ImageLayout::eUndefined, - colorFinalLayout ); - if ( depthFormat != vk::Format::eUndefined ) - { - attachmentDescriptions.emplace_back( vk::AttachmentDescriptionFlags(), - depthFormat, - vk::SampleCountFlagBits::e1, - loadOp, - vk::AttachmentStoreOp::eDontCare, - vk::AttachmentLoadOp::eDontCare, - vk::AttachmentStoreOp::eDontCare, - vk::ImageLayout::eUndefined, - vk::ImageLayout::eDepthStencilAttachmentOptimal ); - } - vk::AttachmentReference colorAttachment( 0, vk::ImageLayout::eColorAttachmentOptimal ); - vk::AttachmentReference depthAttachment( 1, vk::ImageLayout::eDepthStencilAttachmentOptimal ); - vk::SubpassDescription subpassDescription( vk::SubpassDescriptionFlags(), - vk::PipelineBindPoint::eGraphics, - {}, - colorAttachment, - {}, - ( depthFormat != vk::Format::eUndefined ) ? &depthAttachment : nullptr ); - return device.createRenderPass( vk::RenderPassCreateInfo( vk::RenderPassCreateFlags(), attachmentDescriptions, subpassDescription ) ); - } - - VKAPI_ATTR VkBool32 VKAPI_CALL debugUtilsMessengerCallback( VkDebugUtilsMessageSeverityFlagBitsEXT messageSeverity, - VkDebugUtilsMessageTypeFlagsEXT messageTypes, - VkDebugUtilsMessengerCallbackDataEXT const * pCallbackData, - void * /*pUserData*/ ) - { -#if !defined( NDEBUG ) - if ( static_cast( pCallbackData->messageIdNumber ) == 0x822806fa ) - { - // Validation Warning: vkCreateInstance(): to enable extension VK_EXT_debug_utils, but this extension is intended to support use by applications when - // debugging and it is strongly recommended that it be otherwise avoided. - return vk::False; - } - else if ( static_cast( pCallbackData->messageIdNumber ) == 0xe8d1a9fe ) - { - // Validation Performance Warning: Using debug builds of the validation layers *will* adversely affect performance. - return vk::False; - } -#endif - - std::cerr << vk::to_string( static_cast( messageSeverity ) ) << ": " - << vk::to_string( static_cast( messageTypes ) ) << ":\n"; - std::cerr << std::string( "\t" ) << "messageIDName = <" << pCallbackData->pMessageIdName << ">\n"; - std::cerr << std::string( "\t" ) << "messageIdNumber = " << pCallbackData->messageIdNumber << "\n"; - std::cerr << std::string( "\t" ) << "message = <" << pCallbackData->pMessage << ">\n"; - if ( 0 < pCallbackData->queueLabelCount ) - { - std::cerr << std::string( "\t" ) << "Queue Labels:\n"; - for ( uint32_t i = 0; i < pCallbackData->queueLabelCount; i++ ) - { - std::cerr << std::string( "\t\t" ) << "labelName = <" << pCallbackData->pQueueLabels[i].pLabelName << ">\n"; - } - } - if ( 0 < pCallbackData->cmdBufLabelCount ) - { - std::cerr << std::string( "\t" ) << "CommandBuffer Labels:\n"; - for ( uint32_t i = 0; i < pCallbackData->cmdBufLabelCount; i++ ) - { - std::cerr << std::string( "\t\t" ) << "labelName = <" << pCallbackData->pCmdBufLabels[i].pLabelName << ">\n"; - } - } - if ( 0 < pCallbackData->objectCount ) - { - std::cerr << std::string( "\t" ) << "Objects:\n"; - for ( uint32_t i = 0; i < pCallbackData->objectCount; i++ ) - { - std::cerr << std::string( "\t\t" ) << "Object " << i << "\n"; - std::cerr << std::string( "\t\t\t" ) << "objectType = " << vk::to_string( static_cast( pCallbackData->pObjects[i].objectType ) ) - << "\n"; - std::cerr << std::string( "\t\t\t" ) << "objectHandle = " << pCallbackData->pObjects[i].objectHandle << "\n"; - if ( pCallbackData->pObjects[i].pObjectName ) - { - std::cerr << std::string( "\t\t\t" ) << "objectName = <" << pCallbackData->pObjects[i].pObjectName << ">\n"; - } - } - } - return vk::False; - } - - uint32_t findGraphicsQueueFamilyIndex( std::vector const & queueFamilyProperties ) - { - // get the first index into queueFamiliyProperties which supports graphics - std::vector::const_iterator graphicsQueueFamilyProperty = - std::find_if( queueFamilyProperties.begin(), - queueFamilyProperties.end(), - []( vk::QueueFamilyProperties const & qfp ) { return qfp.queueFlags & vk::QueueFlagBits::eGraphics; } ); - assert( graphicsQueueFamilyProperty != queueFamilyProperties.end() ); - return static_cast( std::distance( queueFamilyProperties.begin(), graphicsQueueFamilyProperty ) ); - } - - std::pair findGraphicsAndPresentQueueFamilyIndex( vk::PhysicalDevice physicalDevice, vk::SurfaceKHR const & surface ) - { - std::vector queueFamilyProperties = physicalDevice.getQueueFamilyProperties(); - assert( queueFamilyProperties.size() < std::numeric_limits::max() ); - - uint32_t graphicsQueueFamilyIndex = findGraphicsQueueFamilyIndex( queueFamilyProperties ); - if ( physicalDevice.getSurfaceSupportKHR( graphicsQueueFamilyIndex, surface ) ) - { - return std::make_pair( graphicsQueueFamilyIndex, - graphicsQueueFamilyIndex ); // the first graphicsQueueFamilyIndex does also support presents - } - - // the graphicsQueueFamilyIndex doesn't support present -> look for an other family index that supports both - // graphics and present - for ( size_t i = 0; i < queueFamilyProperties.size(); i++ ) - { - if ( ( queueFamilyProperties[i].queueFlags & vk::QueueFlagBits::eGraphics ) && - physicalDevice.getSurfaceSupportKHR( static_cast( i ), surface ) ) - { - return std::make_pair( static_cast( i ), static_cast( i ) ); - } - } - - // there's nothing like a single family index that supports both graphics and present -> look for an other family - // index that supports present - for ( size_t i = 0; i < queueFamilyProperties.size(); i++ ) - { - if ( physicalDevice.getSurfaceSupportKHR( static_cast( i ), surface ) ) - { - return std::make_pair( graphicsQueueFamilyIndex, static_cast( i ) ); - } - } - - throw std::runtime_error( "Could not find queues for both graphics or present -> terminating" ); - } - - uint32_t findMemoryType( vk::PhysicalDeviceMemoryProperties const & memoryProperties, uint32_t typeBits, vk::MemoryPropertyFlags requirementsMask ) - { - uint32_t typeIndex = uint32_t( ~0 ); - for ( uint32_t i = 0; i < memoryProperties.memoryTypeCount; i++ ) - { - if ( ( typeBits & 1 ) && ( ( memoryProperties.memoryTypes[i].propertyFlags & requirementsMask ) == requirementsMask ) ) - { - typeIndex = i; - break; - } - typeBits >>= 1; - } - assert( typeIndex != uint32_t( ~0 ) ); - return typeIndex; - } - - std::vector getDeviceExtensions() - { - return { VK_KHR_SWAPCHAIN_EXTENSION_NAME }; - } - - std::vector getInstanceExtensions() - { - std::vector extensions; - extensions.push_back( VK_KHR_SURFACE_EXTENSION_NAME ); -#if defined( VK_USE_PLATFORM_ANDROID_KHR ) - extensions.push_back( VK_KHR_ANDROID_SURFACE_EXTENSION_NAME ); -#elif defined( VK_USE_PLATFORM_IOS_MVK ) - extensions.push_back( VK_MVK_IOS_SURFACE_EXTENSION_NAME ); -#elif defined( VK_USE_PLATFORM_MACOS_MVK ) - extensions.push_back( VK_MVK_MACOS_SURFACE_EXTENSION_NAME ); -#elif defined( VK_USE_PLATFORM_MIR_KHR ) - extensions.push_back( VK_KHR_MIR_SURFACE_EXTENSION_NAME ); -#elif defined( VK_USE_PLATFORM_VI_NN ) - extensions.push_back( VK_NN_VI_SURFACE_EXTENSION_NAME ); -#elif defined( VK_USE_PLATFORM_WAYLAND_KHR ) - extensions.push_back( VK_KHR_WAYLAND_SURFACE_EXTENSION_NAME ); -#elif defined( VK_USE_PLATFORM_WIN32_KHR ) - extensions.push_back( VK_KHR_WIN32_SURFACE_EXTENSION_NAME ); -#elif defined( VK_USE_PLATFORM_XCB_KHR ) - extensions.push_back( VK_KHR_XCB_SURFACE_EXTENSION_NAME ); -#elif defined( VK_USE_PLATFORM_XLIB_KHR ) - extensions.push_back( VK_KHR_XLIB_SURFACE_EXTENSION_NAME ); -#elif defined( VK_USE_PLATFORM_XLIB_XRANDR_EXT ) - extensions.push_back( VK_EXT_ACQUIRE_XLIB_DISPLAY_EXTENSION_NAME ); -#endif - return extensions; - } - - vk::Format pickDepthFormat( vk::PhysicalDevice const & physicalDevice ) - { - std::vector candidates = { vk::Format::eD32Sfloat, vk::Format::eD32SfloatS8Uint, vk::Format::eD24UnormS8Uint }; - for ( vk::Format format : candidates ) - { - vk::FormatProperties props = physicalDevice.getFormatProperties( format ); - - if ( props.optimalTilingFeatures & vk::FormatFeatureFlagBits::eDepthStencilAttachment ) - { - return format; - } - } - throw std::runtime_error( "failed to find supported format!" ); - } - - vk::PresentModeKHR pickPresentMode( std::vector const & presentModes ) - { - vk::PresentModeKHR pickedMode = vk::PresentModeKHR::eFifo; - for ( const auto & presentMode : presentModes ) - { - if ( presentMode == vk::PresentModeKHR::eMailbox ) - { - pickedMode = presentMode; - break; - } - - if ( presentMode == vk::PresentModeKHR::eImmediate ) - { - pickedMode = presentMode; - } - } - return pickedMode; - } - - vk::SurfaceFormatKHR pickSurfaceFormat( std::vector const & formats ) - { - assert( !formats.empty() ); - vk::SurfaceFormatKHR pickedFormat = formats[0]; - if ( formats.size() == 1 ) - { - if ( formats[0].format == vk::Format::eUndefined ) - { - pickedFormat.format = vk::Format::eB8G8R8A8Unorm; - pickedFormat.colorSpace = vk::ColorSpaceKHR::eSrgbNonlinear; - } - } - else - { - // request several formats, the first found will be used - vk::Format requestedFormats[] = { vk::Format::eB8G8R8A8Unorm, vk::Format::eR8G8B8A8Unorm, vk::Format::eB8G8R8Unorm, vk::Format::eR8G8B8Unorm }; - vk::ColorSpaceKHR requestedColorSpace = vk::ColorSpaceKHR::eSrgbNonlinear; - for ( size_t i = 0; i < sizeof( requestedFormats ) / sizeof( requestedFormats[0] ); i++ ) - { - vk::Format requestedFormat = requestedFormats[i]; - auto it = std::find_if( formats.begin(), - formats.end(), - [requestedFormat, requestedColorSpace]( vk::SurfaceFormatKHR const & f ) - { return ( f.format == requestedFormat ) && ( f.colorSpace == requestedColorSpace ); } ); - if ( it != formats.end() ) - { - pickedFormat = *it; - break; - } - } - } - assert( pickedFormat.colorSpace == vk::ColorSpaceKHR::eSrgbNonlinear ); - return pickedFormat; - } - - void setImageLayout( - vk::CommandBuffer const & commandBuffer, vk::Image image, vk::Format format, vk::ImageLayout oldImageLayout, vk::ImageLayout newImageLayout ) - { - vk::AccessFlags sourceAccessMask; - switch ( oldImageLayout ) - { - case vk::ImageLayout::eTransferDstOptimal: sourceAccessMask = vk::AccessFlagBits::eTransferWrite; break; - case vk::ImageLayout::ePreinitialized: sourceAccessMask = vk::AccessFlagBits::eHostWrite; break; - case vk::ImageLayout::eGeneral: // sourceAccessMask is empty - case vk::ImageLayout::eUndefined: break; - default: assert( false ); break; - } - - vk::PipelineStageFlags sourceStage; - switch ( oldImageLayout ) - { - case vk::ImageLayout::eGeneral: - case vk::ImageLayout::ePreinitialized: sourceStage = vk::PipelineStageFlagBits::eHost; break; - case vk::ImageLayout::eTransferDstOptimal: sourceStage = vk::PipelineStageFlagBits::eTransfer; break; - case vk::ImageLayout::eUndefined: sourceStage = vk::PipelineStageFlagBits::eTopOfPipe; break; - default: assert( false ); break; - } - - vk::AccessFlags destinationAccessMask; - switch ( newImageLayout ) - { - case vk::ImageLayout::eColorAttachmentOptimal: destinationAccessMask = vk::AccessFlagBits::eColorAttachmentWrite; break; - case vk::ImageLayout::eDepthStencilAttachmentOptimal: - destinationAccessMask = vk::AccessFlagBits::eDepthStencilAttachmentRead | vk::AccessFlagBits::eDepthStencilAttachmentWrite; - break; - case vk::ImageLayout::eGeneral: // empty destinationAccessMask - case vk::ImageLayout::ePresentSrcKHR: break; - case vk::ImageLayout::eShaderReadOnlyOptimal: destinationAccessMask = vk::AccessFlagBits::eShaderRead; break; - case vk::ImageLayout::eTransferSrcOptimal: destinationAccessMask = vk::AccessFlagBits::eTransferRead; break; - case vk::ImageLayout::eTransferDstOptimal: destinationAccessMask = vk::AccessFlagBits::eTransferWrite; break; - default: assert( false ); break; - } - - vk::PipelineStageFlags destinationStage; - switch ( newImageLayout ) - { - case vk::ImageLayout::eColorAttachmentOptimal: destinationStage = vk::PipelineStageFlagBits::eColorAttachmentOutput; break; - case vk::ImageLayout::eDepthStencilAttachmentOptimal: destinationStage = vk::PipelineStageFlagBits::eEarlyFragmentTests; break; - case vk::ImageLayout::eGeneral: destinationStage = vk::PipelineStageFlagBits::eHost; break; - case vk::ImageLayout::ePresentSrcKHR: destinationStage = vk::PipelineStageFlagBits::eBottomOfPipe; break; - case vk::ImageLayout::eShaderReadOnlyOptimal: destinationStage = vk::PipelineStageFlagBits::eFragmentShader; break; - case vk::ImageLayout::eTransferDstOptimal: - case vk::ImageLayout::eTransferSrcOptimal: destinationStage = vk::PipelineStageFlagBits::eTransfer; break; - default: assert( false ); break; - } - - vk::ImageAspectFlags aspectMask; - if ( newImageLayout == vk::ImageLayout::eDepthStencilAttachmentOptimal ) - { - aspectMask = vk::ImageAspectFlagBits::eDepth; - if ( format == vk::Format::eD32SfloatS8Uint || format == vk::Format::eD24UnormS8Uint ) - { - aspectMask |= vk::ImageAspectFlagBits::eStencil; - } - } - else - { - aspectMask = vk::ImageAspectFlagBits::eColor; - } - - vk::ImageSubresourceRange imageSubresourceRange( aspectMask, 0, 1, 0, 1 ); - vk::ImageMemoryBarrier imageMemoryBarrier( sourceAccessMask, - destinationAccessMask, - oldImageLayout, - newImageLayout, - VK_QUEUE_FAMILY_IGNORED, - VK_QUEUE_FAMILY_IGNORED, - image, - imageSubresourceRange ); - return commandBuffer.pipelineBarrier( sourceStage, destinationStage, {}, nullptr, nullptr, imageMemoryBarrier ); - } - - void submitAndWait( vk::Device const & device, vk::Queue const & queue, vk::CommandBuffer const & commandBuffer ) - { - vk::Fence fence = device.createFence( vk::FenceCreateInfo() ); - queue.submit( vk::SubmitInfo( 0, nullptr, nullptr, 1, &commandBuffer ), fence ); - while ( vk::Result::eTimeout == device.waitForFences( fence, VK_TRUE, vk::su::FenceTimeout ) ) - ; - device.destroyFence( fence ); - } - - void updateDescriptorSets( vk::Device const & device, - vk::DescriptorSet const & descriptorSet, - std::vector> const & bufferData, - vk::su::TextureData const & textureData, - uint32_t bindingOffset ) - { - std::vector bufferInfos; - bufferInfos.reserve( bufferData.size() ); - - std::vector writeDescriptorSets; - writeDescriptorSets.reserve( bufferData.size() + 1 ); - uint32_t dstBinding = bindingOffset; - for ( auto const & bd : bufferData ) - { - bufferInfos.emplace_back( std::get<1>( bd ), 0, std::get<2>( bd ) ); - writeDescriptorSets.emplace_back( descriptorSet, dstBinding++, 0, 1, std::get<0>( bd ), nullptr, &bufferInfos.back(), &std::get<3>( bd ) ); - } - - vk::DescriptorImageInfo imageInfo( textureData.sampler, textureData.imageData->imageView, vk::ImageLayout::eShaderReadOnlyOptimal ); - writeDescriptorSets.emplace_back( descriptorSet, dstBinding, 0, vk::DescriptorType::eCombinedImageSampler, imageInfo, nullptr, nullptr ); - - device.updateDescriptorSets( writeDescriptorSets, nullptr ); - } - - void updateDescriptorSets( vk::Device const & device, - vk::DescriptorSet const & descriptorSet, - std::vector> const & bufferData, - std::vector const & textureData, - uint32_t bindingOffset ) - { - std::vector bufferInfos; - bufferInfos.reserve( bufferData.size() ); - - std::vector writeDescriptorSets; - writeDescriptorSets.reserve( bufferData.size() + ( textureData.empty() ? 0 : 1 ) ); - uint32_t dstBinding = bindingOffset; - for ( auto const & bd : bufferData ) - { - bufferInfos.emplace_back( std::get<1>( bd ), 0, std::get<2>( bd ) ); - writeDescriptorSets.emplace_back( descriptorSet, dstBinding++, 0, 1, std::get<0>( bd ), nullptr, &bufferInfos.back(), &std::get<3>( bd ) ); - } - - std::vector imageInfos; - if ( !textureData.empty() ) - { - imageInfos.reserve( textureData.size() ); - for ( auto const & td : textureData ) - { - imageInfos.emplace_back( td.sampler, td.imageData->imageView, vk::ImageLayout::eShaderReadOnlyOptimal ); - } - writeDescriptorSets.emplace_back( descriptorSet, - dstBinding, - 0, - checked_cast( imageInfos.size() ), - vk::DescriptorType::eCombinedImageSampler, - imageInfos.data(), - nullptr, - nullptr ); - } - - device.updateDescriptorSets( writeDescriptorSets, nullptr ); - } - - BufferData::BufferData( vk::PhysicalDevice const & physicalDevice, - vk::Device const & device, - vk::DeviceSize size, - vk::BufferUsageFlags usage, - vk::MemoryPropertyFlags propertyFlags ) -#if !defined( NDEBUG ) - : m_size( size ), m_usage( usage ), m_propertyFlags( propertyFlags ) -#endif - { - buffer = device.createBuffer( vk::BufferCreateInfo( vk::BufferCreateFlags(), size, usage ) ); - deviceMemory = vk::su::allocateDeviceMemory( device, physicalDevice.getMemoryProperties(), device.getBufferMemoryRequirements( buffer ), propertyFlags ); - device.bindBufferMemory( buffer, deviceMemory, 0 ); - } - - DepthBufferData::DepthBufferData( vk::PhysicalDevice const & physicalDevice, vk::Device const & device, vk::Format format, vk::Extent2D const & extent ) - : ImageData( physicalDevice, - device, - format, - extent, - vk::ImageTiling::eOptimal, - vk::ImageUsageFlagBits::eDepthStencilAttachment, - vk::ImageLayout::eUndefined, - vk::MemoryPropertyFlagBits::eDeviceLocal, - vk::ImageAspectFlagBits::eDepth ) - { - } - - ImageData::ImageData( vk::PhysicalDevice const & physicalDevice, - vk::Device const & device, - vk::Format format_, - vk::Extent2D const & extent, - vk::ImageTiling tiling, - vk::ImageUsageFlags usage, - vk::ImageLayout initialLayout, - vk::MemoryPropertyFlags memoryProperties, - vk::ImageAspectFlags aspectMask ) - : format( format_ ) - { - vk::ImageCreateInfo imageCreateInfo( vk::ImageCreateFlags(), - vk::ImageType::e2D, - format, - vk::Extent3D( extent, 1 ), - 1, - 1, - vk::SampleCountFlagBits::e1, - tiling, - usage | vk::ImageUsageFlagBits::eSampled, - vk::SharingMode::eExclusive, - {}, - initialLayout ); - image = device.createImage( imageCreateInfo ); - - deviceMemory = vk::su::allocateDeviceMemory( device, physicalDevice.getMemoryProperties(), device.getImageMemoryRequirements( image ), memoryProperties ); - - device.bindImageMemory( image, deviceMemory, 0 ); - - vk::ImageViewCreateInfo imageViewCreateInfo( {}, image, vk::ImageViewType::e2D, format, {}, { aspectMask, 0, 1, 0, 1 } ); - imageView = device.createImageView( imageViewCreateInfo ); - } - - SurfaceData::SurfaceData( vk::Instance const & instance, std::string const & windowName, vk::Extent2D const & extent_ ) - : extent( extent_ ), window( vk::su::createWindow( windowName, extent ) ) - { - VkSurfaceKHR _surface; - VkResult err = glfwCreateWindowSurface( static_cast( instance ), window.handle, nullptr, &_surface ); - if ( err != VK_SUCCESS ) - throw std::runtime_error( "Failed to create window!" ); - surface = vk::SurfaceKHR( _surface ); - } - - SwapChainData::SwapChainData( vk::PhysicalDevice const & physicalDevice, - vk::Device const & device, - vk::SurfaceKHR const & surface, - vk::Extent2D const & extent, - vk::ImageUsageFlags usage, - vk::SwapchainKHR const & oldSwapChain, - uint32_t graphicsQueueFamilyIndex, - uint32_t presentQueueFamilyIndex ) - { - vk::SurfaceFormatKHR surfaceFormat = vk::su::pickSurfaceFormat( physicalDevice.getSurfaceFormatsKHR( surface ) ); - colorFormat = surfaceFormat.format; - - vk::SurfaceCapabilitiesKHR surfaceCapabilities = physicalDevice.getSurfaceCapabilitiesKHR( surface ); - vk::Extent2D swapchainExtent; - if ( surfaceCapabilities.currentExtent.width == std::numeric_limits::max() ) - { - // If the surface size is undefined, the size is set to the size of the images requested. - swapchainExtent.width = clamp( extent.width, surfaceCapabilities.minImageExtent.width, surfaceCapabilities.maxImageExtent.width ); - swapchainExtent.height = clamp( extent.height, surfaceCapabilities.minImageExtent.height, surfaceCapabilities.maxImageExtent.height ); - } - else - { - // If the surface size is defined, the swap chain size must match - swapchainExtent = surfaceCapabilities.currentExtent; - } - vk::SurfaceTransformFlagBitsKHR preTransform = ( surfaceCapabilities.supportedTransforms & vk::SurfaceTransformFlagBitsKHR::eIdentity ) - ? vk::SurfaceTransformFlagBitsKHR::eIdentity - : surfaceCapabilities.currentTransform; - vk::CompositeAlphaFlagBitsKHR compositeAlpha = - ( surfaceCapabilities.supportedCompositeAlpha & vk::CompositeAlphaFlagBitsKHR::ePreMultiplied ) ? vk::CompositeAlphaFlagBitsKHR::ePreMultiplied - : ( surfaceCapabilities.supportedCompositeAlpha & vk::CompositeAlphaFlagBitsKHR::ePostMultiplied ) ? vk::CompositeAlphaFlagBitsKHR::ePostMultiplied - : ( surfaceCapabilities.supportedCompositeAlpha & vk::CompositeAlphaFlagBitsKHR::eInherit ) ? vk::CompositeAlphaFlagBitsKHR::eInherit - : vk::CompositeAlphaFlagBitsKHR::eOpaque; - vk::PresentModeKHR presentMode = vk::su::pickPresentMode( physicalDevice.getSurfacePresentModesKHR( surface ) ); - vk::SwapchainCreateInfoKHR swapChainCreateInfo( {}, - surface, - vk::su::clamp( 3u, surfaceCapabilities.minImageCount, surfaceCapabilities.maxImageCount ), - colorFormat, - surfaceFormat.colorSpace, - swapchainExtent, - 1, - usage, - vk::SharingMode::eExclusive, - {}, - preTransform, - compositeAlpha, - presentMode, - true, - oldSwapChain ); - if ( graphicsQueueFamilyIndex != presentQueueFamilyIndex ) - { - uint32_t queueFamilyIndices[2] = { graphicsQueueFamilyIndex, presentQueueFamilyIndex }; - // If the graphics and present queues are from different queue families, we either have to explicitly transfer - // ownership of images between the queues, or we have to create the swapchain with imageSharingMode as - // vk::SharingMode::eConcurrent - swapChainCreateInfo.imageSharingMode = vk::SharingMode::eConcurrent; - swapChainCreateInfo.queueFamilyIndexCount = 2; - swapChainCreateInfo.pQueueFamilyIndices = queueFamilyIndices; - } - swapChain = device.createSwapchainKHR( swapChainCreateInfo ); - - images = device.getSwapchainImagesKHR( swapChain ); - - imageViews.reserve( images.size() ); - vk::ImageViewCreateInfo imageViewCreateInfo( {}, {}, vk::ImageViewType::e2D, colorFormat, {}, { vk::ImageAspectFlagBits::eColor, 0, 1, 0, 1 } ); - for ( auto image : images ) - { - imageViewCreateInfo.image = image; - imageViews.push_back( device.createImageView( imageViewCreateInfo ) ); - } - } - - CheckerboardImageGenerator::CheckerboardImageGenerator( std::array const & rgb0, std::array const & rgb1 ) - : m_rgb0( rgb0 ), m_rgb1( rgb1 ) - { - } - - void CheckerboardImageGenerator::operator()( void * data, vk::Extent2D & extent ) const - { - // Checkerboard of 16x16 pixel squares - uint8_t * pImageMemory = static_cast( data ); - for ( uint32_t row = 0; row < extent.height; row++ ) - { - for ( uint32_t col = 0; col < extent.width; col++ ) - { - std::array const & rgb = ( ( ( row & 0x10 ) == 0 ) ^ ( ( col & 0x10 ) == 0 ) ) ? m_rgb1 : m_rgb0; - pImageMemory[0] = rgb[0]; - pImageMemory[1] = rgb[1]; - pImageMemory[2] = rgb[2]; - pImageMemory[3] = 255; - pImageMemory += 4; - } - } - } - - MonochromeImageGenerator::MonochromeImageGenerator( std::array const & rgb ) : m_rgb( rgb ) {} - - void MonochromeImageGenerator::operator()( void * data, vk::Extent2D const & extent ) const - { - // fill in with the monochrome color - unsigned char * pImageMemory = static_cast( data ); - for ( uint32_t row = 0; row < extent.height; row++ ) - { - for ( uint32_t col = 0; col < extent.width; col++ ) - { - pImageMemory[0] = m_rgb[0]; - pImageMemory[1] = m_rgb[1]; - pImageMemory[2] = m_rgb[2]; - pImageMemory[3] = 255; - pImageMemory += 4; - } - } - } - - PixelsImageGenerator::PixelsImageGenerator( vk::Extent2D const & extent, size_t channels, unsigned char const * pixels ) - : m_extent( extent ), m_channels( channels ), m_pixels( pixels ) - { - assert( m_channels == 4 ); - } - - void PixelsImageGenerator::operator()( void * data, vk::Extent2D const & extent ) const - { - assert( extent == m_extent ); - memcpy( data, m_pixels, extent.width * extent.height * m_channels ); - } - - TextureData::TextureData( vk::PhysicalDevice const & physicalDevice, - vk::Device const & device, - vk::Extent2D const & extent_, - vk::ImageUsageFlags usageFlags, - vk::FormatFeatureFlags formatFeatureFlags, - bool anisotropyEnable, - bool forceStaging ) - : format( vk::Format::eR8G8B8A8Unorm ), extent( extent_ ) - { - vk::FormatProperties formatProperties = physicalDevice.getFormatProperties( format ); - - formatFeatureFlags |= vk::FormatFeatureFlagBits::eSampledImage; - needsStaging = forceStaging || ( ( formatProperties.linearTilingFeatures & formatFeatureFlags ) != formatFeatureFlags ); - vk::ImageTiling imageTiling; - vk::ImageLayout initialLayout; - vk::MemoryPropertyFlags requirements; - if ( needsStaging ) - { - assert( ( formatProperties.optimalTilingFeatures & formatFeatureFlags ) == formatFeatureFlags ); - stagingBufferData = - std::unique_ptr( new BufferData( physicalDevice, device, extent.width * extent.height * 4, vk::BufferUsageFlagBits::eTransferSrc ) ); - imageTiling = vk::ImageTiling::eOptimal; - usageFlags |= vk::ImageUsageFlagBits::eTransferDst; - initialLayout = vk::ImageLayout::eUndefined; - } - else - { - imageTiling = vk::ImageTiling::eLinear; - initialLayout = vk::ImageLayout::ePreinitialized; - requirements = vk::MemoryPropertyFlagBits::eHostCoherent | vk::MemoryPropertyFlagBits::eHostVisible; - } - imageData = std::unique_ptr( new ImageData( physicalDevice, - device, - format, - extent, - imageTiling, - usageFlags | vk::ImageUsageFlagBits::eSampled, - initialLayout, - requirements, - vk::ImageAspectFlagBits::eColor ) ); - - sampler = device.createSampler( vk::SamplerCreateInfo( vk::SamplerCreateFlags(), - vk::Filter::eLinear, - vk::Filter::eLinear, - vk::SamplerMipmapMode::eLinear, - vk::SamplerAddressMode::eRepeat, - vk::SamplerAddressMode::eRepeat, - vk::SamplerAddressMode::eRepeat, - 0.0f, - anisotropyEnable, - 16.0f, - false, - vk::CompareOp::eNever, - 0.0f, - 0.0f, - vk::BorderColor::eFloatOpaqueBlack ) ); - } - - UUID::UUID( uint8_t const data[VK_UUID_SIZE] ) - { - memcpy( m_data, data, VK_UUID_SIZE * sizeof( uint8_t ) ); - } - - WindowData::WindowData( GLFWwindow * wnd, std::string const & name, vk::Extent2D const & extent ) : handle{ wnd }, name{ name }, extent{ extent } {} - - WindowData::WindowData( WindowData && other ) : handle{}, name{}, extent{} - { - std::swap( handle, other.handle ); - std::swap( name, other.name ); - std::swap( extent, other.extent ); - } - - WindowData::~WindowData() noexcept - { - glfwDestroyWindow( handle ); - } - - WindowData createWindow( std::string const & windowName, vk::Extent2D const & extent ) - { - struct glfwContext - { - glfwContext() - { - glfwInit(); - glfwSetErrorCallback( - []( int error, const char * msg ) - { - std::cerr << "glfw: " - << "(" << error << ") " << msg << std::endl; - } ); - } - - ~glfwContext() - { - glfwTerminate(); - } - }; - - static auto glfwCtx = glfwContext(); - (void)glfwCtx; - - glfwWindowHint( GLFW_CLIENT_API, GLFW_NO_API ); - GLFWwindow * window = glfwCreateWindow( extent.width, extent.height, windowName.c_str(), nullptr, nullptr ); - return WindowData( window, windowName, extent ); - } - - vk::DebugUtilsMessengerCreateInfoEXT makeDebugUtilsMessengerCreateInfoEXT() - { - return { {}, - vk::DebugUtilsMessageSeverityFlagBitsEXT::eWarning | vk::DebugUtilsMessageSeverityFlagBitsEXT::eError, - vk::DebugUtilsMessageTypeFlagBitsEXT::eGeneral | vk::DebugUtilsMessageTypeFlagBitsEXT::ePerformance | - vk::DebugUtilsMessageTypeFlagBitsEXT::eValidation, - &vk::su::debugUtilsMessengerCallback }; - } - -#if defined( NDEBUG ) - vk::StructureChain -#else - vk::StructureChain -#endif - makeInstanceCreateInfoChain( vk::ApplicationInfo const & applicationInfo, - std::vector const & layers, - std::vector const & extensions ) - { -#if defined( NDEBUG ) - // in non-debug mode just use the InstanceCreateInfo for instance creation - vk::StructureChain instanceCreateInfo( { {}, &applicationInfo, layers, extensions } ); -#else - // in debug mode, addionally use the debugUtilsMessengerCallback in instance creation! - vk::DebugUtilsMessageSeverityFlagsEXT severityFlags( vk::DebugUtilsMessageSeverityFlagBitsEXT::eWarning | - vk::DebugUtilsMessageSeverityFlagBitsEXT::eError ); - vk::DebugUtilsMessageTypeFlagsEXT messageTypeFlags( vk::DebugUtilsMessageTypeFlagBitsEXT::eGeneral | vk::DebugUtilsMessageTypeFlagBitsEXT::ePerformance | - vk::DebugUtilsMessageTypeFlagBitsEXT::eValidation ); - vk::StructureChain instanceCreateInfo( - { {}, &applicationInfo, layers, extensions }, { {}, severityFlags, messageTypeFlags, &vk::su::debugUtilsMessengerCallback } ); -#endif - return instanceCreateInfo; - } - - } // namespace su -} // namespace vk - -std::ostream & operator<<( std::ostream & os, vk::su::UUID const & uuid ) -{ - os << std::setfill( '0' ) << std::hex; - for ( uint32_t j = 0; j < VK_UUID_SIZE; ++j ) - { - os << std::setw( 2 ) << static_cast( uuid.m_data[j] ); - if ( j == 3 || j == 5 || j == 7 || j == 9 ) - { - std::cout << '-'; - } - } - os << std::setfill( ' ' ) << std::dec; - return os; -} diff --git a/core/rhi/utils/utils.hpp b/core/rhi/utils/utils.hpp deleted file mode 100644 index 5a88a0e..0000000 --- a/core/rhi/utils/utils.hpp +++ /dev/null @@ -1,439 +0,0 @@ -#pragma once - -// Copyright(c) 2019, NVIDIA CORPORATION. All rights reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// - -#include - -#define GLFW_INCLUDE_NONE -#include -#include -#include -#include -#include // std::unique_ptr - -namespace vk -{ - namespace su - { - const uint64_t FenceTimeout = 100000000; - - template - void oneTimeSubmit( vk::Device const & device, vk::CommandPool const & commandPool, vk::Queue const & queue, Func const & func ) - { - vk::CommandBuffer commandBuffer = - device.allocateCommandBuffers( vk::CommandBufferAllocateInfo( commandPool, vk::CommandBufferLevel::ePrimary, 1 ) ).front(); - commandBuffer.begin( vk::CommandBufferBeginInfo( vk::CommandBufferUsageFlagBits::eOneTimeSubmit ) ); - func( commandBuffer ); - commandBuffer.end(); - queue.submit( vk::SubmitInfo( 0, nullptr, nullptr, 1, &commandBuffer ), nullptr ); - queue.waitIdle(); - } - - template - void copyToDevice( vk::Device const & device, vk::DeviceMemory const & deviceMemory, T const * pData, size_t count, vk::DeviceSize stride = sizeof( T ) ) - { - assert( sizeof( T ) <= stride ); - uint8_t * deviceData = static_cast( device.mapMemory( deviceMemory, 0, count * stride ) ); - if ( stride == sizeof( T ) ) - { - memcpy( deviceData, pData, count * sizeof( T ) ); - } - else - { - for ( size_t i = 0; i < count; i++ ) - { - memcpy( deviceData, &pData[i], sizeof( T ) ); - deviceData += stride; - } - } - device.unmapMemory( deviceMemory ); - } - - template - void copyToDevice( vk::Device const & device, vk::DeviceMemory const & deviceMemory, T const & data ) - { - copyToDevice( device, deviceMemory, &data, 1 ); - } - - template - VULKAN_HPP_INLINE constexpr const T & clamp( const T & v, const T & lo, const T & hi ) - { - return v < lo ? lo : hi < v ? hi : v; - } - - void setImageLayout( - vk::CommandBuffer const & commandBuffer, vk::Image image, vk::Format format, vk::ImageLayout oldImageLayout, vk::ImageLayout newImageLayout ); - - struct WindowData - { - WindowData( GLFWwindow * wnd, std::string const & name, vk::Extent2D const & extent ); - WindowData( const WindowData & ) = delete; - WindowData( WindowData && other ); - ~WindowData() noexcept; - - GLFWwindow * handle; - std::string name; - vk::Extent2D extent; - }; - - WindowData createWindow( std::string const & windowName, vk::Extent2D const & extent ); - - struct BufferData - { - BufferData( vk::PhysicalDevice const & physicalDevice, - vk::Device const & device, - vk::DeviceSize size, - vk::BufferUsageFlags usage, - vk::MemoryPropertyFlags propertyFlags = vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent ); - - void clear( vk::Device const & device ) - { - device.destroyBuffer( buffer ); // to prevent some validation layer warning, the Buffer needs to be destroyed before the bound DeviceMemory - device.freeMemory( deviceMemory ); - } - - template - void upload( vk::Device const & device, DataType const & data ) const - { - assert( ( m_propertyFlags & vk::MemoryPropertyFlagBits::eHostCoherent ) && ( m_propertyFlags & vk::MemoryPropertyFlagBits::eHostVisible ) ); - assert( sizeof( DataType ) <= m_size ); - - void * dataPtr = device.mapMemory( deviceMemory, 0, sizeof( DataType ) ); - memcpy( dataPtr, &data, sizeof( DataType ) ); - device.unmapMemory( deviceMemory ); - } - - template - void upload( vk::Device const & device, std::vector const & data, size_t stride = 0 ) const - { - assert( m_propertyFlags & vk::MemoryPropertyFlagBits::eHostVisible ); - - size_t elementSize = stride ? stride : sizeof( DataType ); - assert( sizeof( DataType ) <= elementSize ); - - copyToDevice( device, deviceMemory, data.data(), data.size(), elementSize ); - } - - template - void upload( vk::PhysicalDevice const & physicalDevice, - vk::Device const & device, - vk::CommandPool const & commandPool, - vk::Queue queue, - std::vector const & data, - size_t stride ) const - { - assert( m_usage & vk::BufferUsageFlagBits::eTransferDst ); - assert( m_propertyFlags & vk::MemoryPropertyFlagBits::eDeviceLocal ); - - size_t elementSize = stride ? stride : sizeof( DataType ); - assert( sizeof( DataType ) <= elementSize ); - - size_t dataSize = data.size() * elementSize; - assert( dataSize <= m_size ); - - vk::su::BufferData stagingBuffer( physicalDevice, device, dataSize, vk::BufferUsageFlagBits::eTransferSrc ); - copyToDevice( device, stagingBuffer.deviceMemory, data.data(), data.size(), elementSize ); - - vk::su::oneTimeSubmit( device, - commandPool, - queue, - [&]( vk::CommandBuffer const & commandBuffer ) - { commandBuffer.copyBuffer( stagingBuffer.buffer, buffer, vk::BufferCopy( 0, 0, dataSize ) ); } ); - - stagingBuffer.clear( device ); - } - - vk::Buffer buffer; - vk::DeviceMemory deviceMemory; -#if !defined( NDEBUG ) - private: - vk::DeviceSize m_size; - vk::BufferUsageFlags m_usage; - vk::MemoryPropertyFlags m_propertyFlags; -#endif - }; - - struct ImageData - { - ImageData( vk::PhysicalDevice const & physicalDevice, - vk::Device const & device, - vk::Format format, - vk::Extent2D const & extent, - vk::ImageTiling tiling, - vk::ImageUsageFlags usage, - vk::ImageLayout initialLayout, - vk::MemoryPropertyFlags memoryProperties, - vk::ImageAspectFlags aspectMask ); - - void clear( vk::Device const & device ) - { - device.destroyImageView( imageView ); - device.destroyImage( image ); // the Image should to be destroyed before the bound DeviceMemory is freed - device.freeMemory( deviceMemory ); - } - - vk::Format format; - vk::Image image; - vk::DeviceMemory deviceMemory; - vk::ImageView imageView; - }; - - struct DepthBufferData : public ImageData - { - DepthBufferData( vk::PhysicalDevice const & physicalDevice, vk::Device const & device, vk::Format format, vk::Extent2D const & extent ); - }; - - struct SurfaceData - { - SurfaceData( vk::Instance const & instance, std::string const & windowName, vk::Extent2D const & extent ); - - vk::Extent2D extent; - WindowData window; - vk::SurfaceKHR surface; - }; - - struct SwapChainData - { - SwapChainData( vk::PhysicalDevice const & physicalDevice, - vk::Device const & device, - vk::SurfaceKHR const & surface, - vk::Extent2D const & extent, - vk::ImageUsageFlags usage, - vk::SwapchainKHR const & oldSwapChain, - uint32_t graphicsFamilyIndex, - uint32_t presentFamilyIndex ); - - void clear( vk::Device const & device ) - { - for ( auto & imageView : imageViews ) - { - device.destroyImageView( imageView ); - } - imageViews.clear(); - images.clear(); - device.destroySwapchainKHR( swapChain ); - } - - vk::Format colorFormat; - vk::SwapchainKHR swapChain; - std::vector images; - std::vector imageViews; - }; - - class CheckerboardImageGenerator - { - public: - CheckerboardImageGenerator( std::array const & rgb0 = { { 0, 0, 0 } }, std::array const & rgb1 = { { 255, 255, 255 } } ); - - void operator()( void * data, vk::Extent2D & extent ) const; - - private: - std::array const & m_rgb0; - std::array const & m_rgb1; - }; - - class MonochromeImageGenerator - { - public: - MonochromeImageGenerator( std::array const & rgb ); - - void operator()( void * data, vk::Extent2D const & extent ) const; - - private: - std::array const & m_rgb; - }; - - class PixelsImageGenerator - { - public: - PixelsImageGenerator( vk::Extent2D const & extent, size_t channels, unsigned char const * pixels ); - - void operator()( void * data, vk::Extent2D const & extent ) const; - - private: - vk::Extent2D m_extent; - size_t m_channels; - unsigned char const * m_pixels; - }; - - struct TextureData - { - TextureData( vk::PhysicalDevice const & physicalDevice, - vk::Device const & device, - vk::Extent2D const & extent_ = { 256, 256 }, - vk::ImageUsageFlags usageFlags = {}, - vk::FormatFeatureFlags formatFeatureFlags = {}, - bool anisotropyEnable = false, - bool forceStaging = false ); - - void clear( vk::Device const & device ) - { - if ( stagingBufferData ) - { - stagingBufferData->clear( device ); - } - imageData->clear( device ); - device.destroySampler( sampler ); - } - - template - void setImage( vk::Device const & device, vk::CommandBuffer const & commandBuffer, ImageGenerator const & imageGenerator ) - { - void * data = needsStaging - ? device.mapMemory( stagingBufferData->deviceMemory, 0, device.getBufferMemoryRequirements( stagingBufferData->buffer ).size ) - : device.mapMemory( imageData->deviceMemory, 0, device.getImageMemoryRequirements( imageData->image ).size ); - imageGenerator( data, extent ); - device.unmapMemory( needsStaging ? stagingBufferData->deviceMemory : imageData->deviceMemory ); - - if ( needsStaging ) - { - // Since we're going to blit to the texture image, set its layout to eTransferDstOptimal - vk::su::setImageLayout( commandBuffer, imageData->image, imageData->format, vk::ImageLayout::eUndefined, vk::ImageLayout::eTransferDstOptimal ); - vk::BufferImageCopy copyRegion( 0, - extent.width, - extent.height, - vk::ImageSubresourceLayers( vk::ImageAspectFlagBits::eColor, 0, 0, 1 ), - vk::Offset3D( 0, 0, 0 ), - vk::Extent3D( extent, 1 ) ); - commandBuffer.copyBufferToImage( stagingBufferData->buffer, imageData->image, vk::ImageLayout::eTransferDstOptimal, copyRegion ); - // Set the layout for the texture image from eTransferDstOptimal to SHADER_READ_ONLY - vk::su::setImageLayout( - commandBuffer, imageData->image, imageData->format, vk::ImageLayout::eTransferDstOptimal, vk::ImageLayout::eShaderReadOnlyOptimal ); - } - else - { - // If we can use the linear tiled image as a texture, just do it - vk::su::setImageLayout( - commandBuffer, imageData->image, imageData->format, vk::ImageLayout::ePreinitialized, vk::ImageLayout::eShaderReadOnlyOptimal ); - } - } - - vk::Format format; - vk::Extent2D extent; - bool needsStaging; - std::unique_ptr stagingBufferData; - std::unique_ptr imageData; - vk::Sampler sampler; - }; - - struct UUID - { - public: - UUID( uint8_t const data[VK_UUID_SIZE] ); - - uint8_t m_data[VK_UUID_SIZE]; - }; - - template - VULKAN_HPP_INLINE TargetType checked_cast( SourceType value ) - { - static_assert( sizeof( TargetType ) <= sizeof( SourceType ), "No need to cast from smaller to larger type!" ); - static_assert( std::numeric_limits::is_integer, "Only integer types supported!" ); - static_assert( !std::numeric_limits::is_signed, "Only unsigned types supported!" ); - static_assert( std::numeric_limits::is_integer, "Only integer types supported!" ); - static_assert( !std::numeric_limits::is_signed, "Only unsigned types supported!" ); - assert( value <= std::numeric_limits::max() ); - return static_cast( value ); - } - - vk::DeviceMemory allocateDeviceMemory( vk::Device const & device, - vk::PhysicalDeviceMemoryProperties const & memoryProperties, - vk::MemoryRequirements const & memoryRequirements, - vk::MemoryPropertyFlags memoryPropertyFlags ); - bool contains( std::vector const & extensionProperties, std::string const & extensionName ); - vk::DescriptorPool createDescriptorPool( vk::Device const & device, std::vector const & poolSizes ); - vk::DescriptorSetLayout createDescriptorSetLayout( vk::Device const & device, - std::vector> const & bindingData, - vk::DescriptorSetLayoutCreateFlags flags = {} ); - vk::Device createDevice( vk::PhysicalDevice const & physicalDevice, - uint32_t queueFamilyIndex, - std::vector const & extensions = {}, - vk::PhysicalDeviceFeatures const * physicalDeviceFeatures = nullptr, - void const * pNext = nullptr ); - std::vector createFramebuffers( vk::Device const & device, - vk::RenderPass & renderPass, - std::vector const & imageViews, - vk::ImageView const & depthImageView, - vk::Extent2D const & extent ); - vk::Pipeline createGraphicsPipeline( vk::Device const & device, - vk::PipelineCache const & pipelineCache, - std::pair const & vertexShaderData, - std::pair const & fragmentShaderData, - uint32_t vertexStride, - std::vector> const & vertexInputAttributeFormatOffset, - vk::FrontFace frontFace, - bool depthBuffered, - vk::PipelineLayout const & pipelineLayout, - vk::RenderPass const & renderPass ); - vk::Instance createInstance( std::string const & appName, - std::string const & engineName, - std::vector const & layers = {}, - std::vector const & extensions = {}, - uint32_t apiVersion = VK_API_VERSION_1_0 ); - vk::RenderPass createRenderPass( vk::Device const & device, - vk::Format colorFormat, - vk::Format depthFormat, - vk::AttachmentLoadOp loadOp = vk::AttachmentLoadOp::eClear, - vk::ImageLayout colorFinalLayout = vk::ImageLayout::ePresentSrcKHR ); - VKAPI_ATTR VkBool32 VKAPI_CALL debugUtilsMessengerCallback( VkDebugUtilsMessageSeverityFlagBitsEXT messageSeverity, - VkDebugUtilsMessageTypeFlagsEXT messageTypes, - VkDebugUtilsMessengerCallbackDataEXT const * pCallbackData, - void * /*pUserData*/ ); - uint32_t findGraphicsQueueFamilyIndex( std::vector const & queueFamilyProperties ); - std::pair findGraphicsAndPresentQueueFamilyIndex( vk::PhysicalDevice physicalDevice, vk::SurfaceKHR const & surface ); - uint32_t findMemoryType( vk::PhysicalDeviceMemoryProperties const & memoryProperties, uint32_t typeBits, vk::MemoryPropertyFlags requirementsMask ); - std::vector gatherExtensions( std::vector const & extensions -#if !defined( NDEBUG ) - , - std::vector const & extensionProperties -#endif - ); - std::vector gatherLayers( std::vector const & layers -#if !defined( NDEBUG ) - , - std::vector const & layerProperties -#endif - ); - std::vector getDeviceExtensions(); - std::vector getInstanceExtensions(); - vk::DebugUtilsMessengerCreateInfoEXT makeDebugUtilsMessengerCreateInfoEXT(); -#if defined( NDEBUG ) - vk::StructureChain -#else - vk::StructureChain -#endif - makeInstanceCreateInfoChain( vk::ApplicationInfo const & applicationInfo, - std::vector const & layers, - std::vector const & extensions ); - vk::Format pickDepthFormat( vk::PhysicalDevice const & physicalDevice ); - vk::PresentModeKHR pickPresentMode( std::vector const & presentModes ); - vk::SurfaceFormatKHR pickSurfaceFormat( std::vector const & formats ); - void submitAndWait( vk::Device const & device, vk::Queue const & queue, vk::CommandBuffer const & commandBuffer ); - void updateDescriptorSets( vk::Device const & device, - vk::DescriptorSet const & descriptorSet, - std::vector> const & bufferData, - vk::su::TextureData const & textureData, - uint32_t bindingOffset = 0 ); - void updateDescriptorSets( vk::Device const & device, - vk::DescriptorSet const & descriptorSet, - std::vector> const & bufferData, - std::vector const & textureData, - uint32_t bindingOffset = 0 ); - - } // namespace su -} // namespace vk - -std::ostream & operator<<( std::ostream & os, vk::su::UUID const & uuid ); diff --git a/core/widget/compound_widget.cpp b/core/widget/compound_widget.cpp deleted file mode 100644 index e0f1b27..0000000 --- a/core/widget/compound_widget.cpp +++ /dev/null @@ -1,8 +0,0 @@ -#include "compound_widget.h" - -void compound_widget::set_content(const std::shared_ptr& content) { - child_ = content; -} - -void compound_widget::on_paint(ImGuiIO& io) { -} diff --git a/core/widget/compound_widget.h b/core/widget/compound_widget.h deleted file mode 100644 index e2dcdf5..0000000 --- a/core/widget/compound_widget.h +++ /dev/null @@ -1,10 +0,0 @@ -#pragma once -#include "widget.h" - -class compound_widget : public widget { -public: - void set_content(const std::shared_ptr& content); - void on_paint(ImGuiIO& io) override; -private: - std::shared_ptr child_; -}; diff --git a/core/widget/leaf_widget.cpp b/core/widget/leaf_widget.cpp deleted file mode 100644 index bd9f44d..0000000 --- a/core/widget/leaf_widget.cpp +++ /dev/null @@ -1 +0,0 @@ -#include "leaf_widget.h" diff --git a/core/widget/leaf_widget.h b/core/widget/leaf_widget.h deleted file mode 100644 index 2c93bd7..0000000 --- a/core/widget/leaf_widget.h +++ /dev/null @@ -1,7 +0,0 @@ -#pragma once -#include "widget.h" - -class leaf_widget : public widget { -public: - -}; diff --git a/core/widget/panel_widget.cpp b/core/widget/panel_widget.cpp deleted file mode 100644 index 1ddbed4..0000000 --- a/core/widget/panel_widget.cpp +++ /dev/null @@ -1 +0,0 @@ -#include "panel_widget.h" diff --git a/core/widget/panel_widget.h b/core/widget/panel_widget.h deleted file mode 100644 index c110142..0000000 --- a/core/widget/panel_widget.h +++ /dev/null @@ -1,7 +0,0 @@ -#pragma once -#include "widget.h" - -class panel_widget : public widget { -public: - -}; diff --git a/core/widget/uilts.h b/core/widget/uilts.h deleted file mode 100644 index 836817a..0000000 --- a/core/widget/uilts.h +++ /dev/null @@ -1,18 +0,0 @@ -#pragma once -#include "extern.h" -#include "imgui.h" -#include "imgui_internal.h" - -extern "C" { - void HideTabBar(); -} - -namespace ImGui { - inline void HideTabBar() - { - ImGuiWindowClass window_class; - window_class.DockNodeFlagsOverrideSet = ImGuiDockNodeFlags_NoWindowMenuButton; - // window_class.DockNodeFlagsOverrideSet = ImGuiDockNodeFlags_NoTabBar; - SetNextWindowClass(&window_class); - } -} \ No newline at end of file diff --git a/core/widget/widget.cpp b/core/widget/widget.cpp deleted file mode 100644 index f2e0feb..0000000 --- a/core/widget/widget.cpp +++ /dev/null @@ -1,11 +0,0 @@ -#include "widget.h" - -#include - -ImGuiID widget::generate_widget_id() { - // random number generator - std::random_device rd; - std::mt19937 gen(rd()); - std::uniform_int_distribution dis(0, std::numeric_limits::max()); - return dis(gen); -} diff --git a/core/widget/widget.h b/core/widget/widget.h deleted file mode 100644 index 132d4f9..0000000 --- a/core/widget/widget.h +++ /dev/null @@ -1,16 +0,0 @@ -#pragma once - -#include "imgui.h" - -class geometry; - -class CORE_API widget : public std::enable_shared_from_this { -public: - virtual ~widget() = default; - - virtual void tick() {} - virtual void on_paint(ImGuiIO& io) = 0; - virtual void on_arrange_children(const geometry& allotted_geometry) {} - [[nodiscard]] virtual ImVec2 compute_desired_size() const { return {0, 0}; } - static ImGuiID generate_widget_id(); -}; diff --git a/third_party/glfw b/third_party/glfw deleted file mode 160000 index 64b4f0f..0000000 --- a/third_party/glfw +++ /dev/null @@ -1 +0,0 @@ -Subproject commit 64b4f0f30c60f11aee715214a9d8faef4372d946 diff --git a/third_party/imgui/CMakeLists.txt b/third_party/imgui/CMakeLists.txt deleted file mode 100644 index d42caff..0000000 --- a/third_party/imgui/CMakeLists.txt +++ /dev/null @@ -1,40 +0,0 @@ -project(imgui) -set(CMAKE_CXX_STANDARD 23) - -add_compile_options("$<$:/utf-8>") -add_compile_options("$<$:/utf-8>") - -add_library(${PROJECT_NAME} STATIC - imgui/imgui.cpp - imgui/imgui.h - imgui/imgui_draw.cpp - imgui/imgui_internal.h - imgui/imconfig.h - imgui/imgui_widgets.cpp - imgui/imstb_rectpack.h - imgui/imstb_textedit.h - imgui/imstb_truetype.h - imgui/imgui_tables.cpp - imgui-knobs/imgui-knobs.h - imgui-knobs/imgui-knobs.cpp -) - -find_package(Vulkan REQUIRED) - -target_sources(${PROJECT_NAME} PRIVATE - imgui/backends/imgui_impl_glfw.cpp - imgui/backends/imgui_impl_glfw.h - imgui/backends/imgui_impl_vulkan.cpp - imgui/backends/imgui_impl_vulkan.h -) -target_link_libraries(${PROJECT_NAME} PUBLIC glfw ${Vulkan_LIBRARIES}) - -target_include_directories(${PROJECT_NAME} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/imgui) -target_include_directories(${PROJECT_NAME} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/imgui/backends) -target_include_directories(${PROJECT_NAME} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/imgui-knobs) -target_include_directories(${PROJECT_NAME} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR} glfw ${Vulkan_INCLUDE_DIRS}) - -target_precompile_headers(${PROJECT_NAME} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/pch.h) - -add_definitions(-DIMGUI_IMPL_OPENGL_LOADER_CUSTOM) -add_compile_definitions(-DIMGUI_DEFINE_MATH_OPERATORS) diff --git a/third_party/imgui/imgui b/third_party/imgui/imgui deleted file mode 160000 index 8048b52..0000000 --- a/third_party/imgui/imgui +++ /dev/null @@ -1 +0,0 @@ -Subproject commit 8048b52498a9bf2a9f87b080d43b0bfd7a5d51d8 diff --git a/third_party/imgui/imgui-knobs/imgui-knobs.cpp b/third_party/imgui/imgui-knobs/imgui-knobs.cpp deleted file mode 100644 index be7525b..0000000 --- a/third_party/imgui/imgui-knobs/imgui-knobs.cpp +++ /dev/null @@ -1,303 +0,0 @@ -#include "imgui-knobs.h" - -#include -#include -#include -#include - -#define IMGUIKNOBS_PI 3.14159265358979323846f - -namespace ImGuiKnobs { - namespace detail { - void draw_arc1(ImVec2 center, float radius, float start_angle, float end_angle, float thickness, ImColor color, int num_segments) { - ImVec2 start = { - center[0] + cosf(start_angle) * radius, - center[1] + sinf(start_angle) * radius, - }; - - ImVec2 end = { - center[0] + cosf(end_angle) * radius, - center[1] + sinf(end_angle) * radius, - }; - - // Calculate bezier arc points - auto ax = start[0] - center[0]; - auto ay = start[1] - center[1]; - auto bx = end[0] - center[0]; - auto by = end[1] - center[1]; - auto q1 = ax * ax + ay * ay; - auto q2 = q1 + ax * bx + ay * by; - auto k2 = (4.0f / 3.0f) * (sqrtf((2.0f * q1 * q2)) - q2) / (ax * by - ay * bx); - auto arc1 = ImVec2{center[0] + ax - k2 * ay, center[1] + ay + k2 * ax}; - auto arc2 = ImVec2{center[0] + bx + k2 * by, center[1] + by - k2 * bx}; - - auto *draw_list = ImGui::GetWindowDrawList(); -#if IMGUI_VERSION_NUM <= 18000 - draw_list->AddBezierCurve(start, arc1, arc2, end, color, thickness, num_segments); -#else - draw_list->AddBezierCubic(start, arc1, arc2, end, color, thickness, num_segments); -#endif - } - - void draw_arc(ImVec2 center, float radius, float start_angle, float end_angle, float thickness, ImColor color, int num_segments, int bezier_count) { - // Overlap and angle of ends of bezier curves needs work, only looks good when not transperant - auto overlap = thickness * radius * 0.00001f * IMGUIKNOBS_PI; - auto delta = end_angle - start_angle; - auto bez_step = 1.0f / bezier_count; - auto mid_angle = start_angle + overlap; - - for (auto i = 0; i < bezier_count - 1; i++) { - auto mid_angle2 = delta * bez_step + mid_angle; - draw_arc1(center, radius, mid_angle - overlap, mid_angle2 + overlap, thickness, color, num_segments); - mid_angle = mid_angle2; - } - - draw_arc1(center, radius, mid_angle - overlap, end_angle, thickness, color, num_segments); - } - - template - struct knob { - float radius; - bool value_changed; - ImVec2 center; - bool is_active; - bool is_hovered; - float angle_min; - float angle_max; - float t; - float angle; - float angle_cos; - float angle_sin; - - knob(const char *_label, ImGuiDataType data_type, DataType *p_value, DataType v_min, DataType v_max, float speed, float _radius, const char *format, ImGuiKnobFlags flags) { - radius = _radius; - t = ((float) *p_value - v_min) / (v_max - v_min); - auto screen_pos = ImGui::GetCursorScreenPos(); - - // Handle dragging - ImGui::InvisibleButton(_label, {radius * 2.0f, radius * 2.0f}); - auto gid = ImGui::GetID(_label); - ImGuiSliderFlags drag_flags = 0; - if (!(flags & ImGuiKnobFlags_DragHorizontal)) { - drag_flags |= ImGuiSliderFlags_Vertical; - } - value_changed = ImGui::DragBehavior(gid, data_type, p_value, speed, &v_min, &v_max, format, drag_flags); - - angle_min = IMGUIKNOBS_PI * 0.75f; - angle_max = IMGUIKNOBS_PI * 2.25f; - center = {screen_pos[0] + radius, screen_pos[1] + radius}; - is_active = ImGui::IsItemActive(); - is_hovered = ImGui::IsItemHovered(); - angle = angle_min + (angle_max - angle_min) * t; - angle_cos = cosf(angle); - angle_sin = sinf(angle); - } - - void draw_dot(float size, float radius, float angle, color_set color, bool filled, int segments) { - auto dot_size = size * this->radius; - auto dot_radius = radius * this->radius; - - ImGui::GetWindowDrawList()->AddCircleFilled( - {center[0] + cosf(angle) * dot_radius, center[1] + sinf(angle) * dot_radius}, - dot_size, - is_active ? color.active : (is_hovered ? color.hovered : color.base), - segments); - } - - void draw_tick(float start, float end, float width, float angle, color_set color) { - auto tick_start = start * radius; - auto tick_end = end * radius; - auto angle_cos = cosf(angle); - auto angle_sin = sinf(angle); - - ImGui::GetWindowDrawList()->AddLine( - {center[0] + angle_cos * tick_end, center[1] + angle_sin * tick_end}, - {center[0] + angle_cos * tick_start, center[1] + angle_sin * tick_start}, - is_active ? color.active : (is_hovered ? color.hovered : color.base), - width * radius); - } - - void draw_circle(float size, color_set color, bool filled, int segments) { - auto circle_radius = size * radius; - - ImGui::GetWindowDrawList()->AddCircleFilled( - center, - circle_radius, - is_active ? color.active : (is_hovered ? color.hovered : color.base)); - } - - void draw_arc(float radius, float size, float start_angle, float end_angle, color_set color, int segments, int bezier_count) { - auto track_radius = radius * this->radius; - auto track_size = size * this->radius * 0.5f + 0.0001f; - - detail::draw_arc( - center, - track_radius, - start_angle, - end_angle, - track_size, - is_active ? color.active : (is_hovered ? color.hovered : color.base), - segments, - bezier_count); - } - }; - - template - knob knob_with_drag(const char *label, ImGuiDataType data_type, DataType *p_value, DataType v_min, DataType v_max, float _speed, const char *format, float size, ImGuiKnobFlags flags) { - auto speed = _speed == 0 ? (v_max - v_min) / 250.f : _speed; - ImGui::PushID(label); - auto width = size == 0 ? ImGui::GetTextLineHeight() * 4.0f : size * ImGui::GetIO().FontGlobalScale; - ImGui::PushItemWidth(width); - - ImGui::BeginGroup(); - - // There's an issue with `SameLine` and Groups, see https://github.com/ocornut/imgui/issues/4190. - // This is probably not the best solution, but seems to work for now - ImGui::GetCurrentWindow()->DC.CurrLineTextBaseOffset = 0; - - // Draw title - if (!(flags & ImGuiKnobFlags_NoTitle)) { - auto title_size = ImGui::CalcTextSize(label, NULL, false, width); - - // Center title - ImGui::SetCursorPosX(ImGui::GetCursorPosX() + (width - title_size[0]) * 0.5f); - - ImGui::Text("%s", label); - } - - // Draw knob - knob k(label, data_type, p_value, v_min, v_max, speed, width * 0.5f, format, flags); - - // Draw tooltip - if (flags & ImGuiKnobFlags_ValueTooltip && (ImGui::IsItemHovered(ImGuiHoveredFlags_AllowWhenDisabled) || ImGui::IsItemActive())) { - ImGui::BeginTooltip(); - ImGui::Text(format, *p_value); - ImGui::EndTooltip(); - } - - // Draw input - if (!(flags & ImGuiKnobFlags_NoInput)) { - ImGuiSliderFlags drag_flags = 0; - if (!(flags & ImGuiKnobFlags_DragHorizontal)) { - drag_flags |= ImGuiSliderFlags_Vertical; - } - auto changed = ImGui::DragScalar("###knob_drag", data_type, p_value, speed, &v_min, &v_max, format, drag_flags); - if (changed) { - k.value_changed = true; - } - } - - ImGui::EndGroup(); - ImGui::PopItemWidth(); - ImGui::PopID(); - - return k; - } - - color_set GetPrimaryColorSet() { - auto *colors = ImGui::GetStyle().Colors; - - return {colors[ImGuiCol_ButtonActive], colors[ImGuiCol_ButtonHovered], colors[ImGuiCol_ButtonHovered]}; - } - - color_set GetSecondaryColorSet() { - auto *colors = ImGui::GetStyle().Colors; - auto active = ImVec4( - colors[ImGuiCol_ButtonActive].x * 0.5f, - colors[ImGuiCol_ButtonActive].y * 0.5f, - colors[ImGuiCol_ButtonActive].z * 0.5f, - colors[ImGuiCol_ButtonActive].w); - - auto hovered = ImVec4( - colors[ImGuiCol_ButtonHovered].x * 0.5f, - colors[ImGuiCol_ButtonHovered].y * 0.5f, - colors[ImGuiCol_ButtonHovered].z * 0.5f, - colors[ImGuiCol_ButtonHovered].w); - - return {active, hovered, hovered}; - } - - color_set GetTrackColorSet() { - auto *colors = ImGui::GetStyle().Colors; - - return {colors[ImGuiCol_FrameBg], colors[ImGuiCol_FrameBg], colors[ImGuiCol_FrameBg]}; - } - }// namespace detail - - - template - bool BaseKnob(const char *label, ImGuiDataType data_type, DataType *p_value, DataType v_min, DataType v_max, float speed, const char *format, ImGuiKnobVariant variant, float size, ImGuiKnobFlags flags, int steps = 10) { - auto knob = detail::knob_with_drag(label, data_type, p_value, v_min, v_max, speed, format, size, flags); - - switch (variant) { - case ImGuiKnobVariant_Tick: { - knob.draw_circle(0.85f, detail::GetSecondaryColorSet(), true, 32); - knob.draw_tick(0.5f, 0.85f, 0.08f, knob.angle, detail::GetPrimaryColorSet()); - break; - } - case ImGuiKnobVariant_Dot: { - knob.draw_circle(0.85f, detail::GetSecondaryColorSet(), true, 32); - knob.draw_dot(0.12f, 0.6f, knob.angle, detail::GetPrimaryColorSet(), true, 12); - break; - } - - case ImGuiKnobVariant_Wiper: { - knob.draw_circle(0.7f, detail::GetSecondaryColorSet(), true, 32); - knob.draw_arc(0.8f, 0.41f, knob.angle_min, knob.angle_max, detail::GetTrackColorSet(), 16, 2); - - if (knob.t > 0.01f) { - knob.draw_arc(0.8f, 0.43f, knob.angle_min, knob.angle, detail::GetPrimaryColorSet(), 16, 2); - } - break; - } - case ImGuiKnobVariant_WiperOnly: { - knob.draw_arc(0.8f, 0.41f, knob.angle_min, knob.angle_max, detail::GetTrackColorSet(), 32, 2); - - if (knob.t > 0.01) { - knob.draw_arc(0.8f, 0.43f, knob.angle_min, knob.angle, detail::GetPrimaryColorSet(), 16, 2); - } - break; - } - case ImGuiKnobVariant_WiperDot: { - knob.draw_circle(0.6f, detail::GetSecondaryColorSet(), true, 32); - knob.draw_arc(0.85f, 0.41f, knob.angle_min, knob.angle_max, detail::GetTrackColorSet(), 16, 2); - knob.draw_dot(0.1f, 0.85f, knob.angle, detail::GetPrimaryColorSet(), true, 12); - break; - } - case ImGuiKnobVariant_Stepped: { - for (auto n = 0.f; n < steps; n++) { - auto a = n / (steps - 1); - auto angle = knob.angle_min + (knob.angle_max - knob.angle_min) * a; - knob.draw_tick(0.7f, 0.9f, 0.04f, angle, detail::GetPrimaryColorSet()); - } - - knob.draw_circle(0.6f, detail::GetSecondaryColorSet(), true, 32); - knob.draw_dot(0.12f, 0.4f, knob.angle, detail::GetPrimaryColorSet(), true, 12); - break; - } - case ImGuiKnobVariant_Space: { - knob.draw_circle(0.3f - knob.t * 0.1f, detail::GetSecondaryColorSet(), true, 16); - - if (knob.t > 0.01f) { - knob.draw_arc(0.4f, 0.15f, knob.angle_min - 1.0f, knob.angle - 1.0f, detail::GetPrimaryColorSet(), 16, 2); - knob.draw_arc(0.6f, 0.15f, knob.angle_min + 1.0f, knob.angle + 1.0f, detail::GetPrimaryColorSet(), 16, 2); - knob.draw_arc(0.8f, 0.15f, knob.angle_min + 3.0f, knob.angle + 3.0f, detail::GetPrimaryColorSet(), 16, 2); - } - break; - } - } - - return knob.value_changed; - } - - bool Knob(const char *label, float *p_value, float v_min, float v_max, float speed, const char *format, ImGuiKnobVariant variant, float size, ImGuiKnobFlags flags, int steps) { - const char *_format = format == NULL ? "%.3f" : format; - return BaseKnob(label, ImGuiDataType_Float, p_value, v_min, v_max, speed, _format, variant, size, flags, steps); - } - - bool KnobInt(const char *label, int *p_value, int v_min, int v_max, float speed, const char *format, ImGuiKnobVariant variant, float size, ImGuiKnobFlags flags, int steps) { - const char *_format = format == NULL ? "%i" : format; - return BaseKnob(label, ImGuiDataType_S32, p_value, v_min, v_max, speed, _format, variant, size, flags, steps); - } - -}// namespace ImGuiKnobs diff --git a/third_party/imgui/imgui-knobs/imgui-knobs.h b/third_party/imgui/imgui-knobs/imgui-knobs.h deleted file mode 100644 index 9587634..0000000 --- a/third_party/imgui/imgui-knobs/imgui-knobs.h +++ /dev/null @@ -1,45 +0,0 @@ -#pragma once - -#include -#include - -typedef int ImGuiKnobFlags; - -enum ImGuiKnobFlags_ { - ImGuiKnobFlags_NoTitle = 1 << 0, - ImGuiKnobFlags_NoInput = 1 << 1, - ImGuiKnobFlags_ValueTooltip = 1 << 2, - ImGuiKnobFlags_DragHorizontal = 1 << 3, -}; - -typedef int ImGuiKnobVariant; - -enum ImGuiKnobVariant_ { - ImGuiKnobVariant_Tick = 1 << 0, - ImGuiKnobVariant_Dot = 1 << 1, - ImGuiKnobVariant_Wiper = 1 << 2, - ImGuiKnobVariant_WiperOnly = 1 << 3, - ImGuiKnobVariant_WiperDot = 1 << 4, - ImGuiKnobVariant_Stepped = 1 << 5, - ImGuiKnobVariant_Space = 1 << 6, -}; - -namespace ImGuiKnobs { - - struct color_set { - ImColor base; - ImColor hovered; - ImColor active; - - color_set(ImColor base, ImColor hovered, ImColor active) : base(base), hovered(hovered), active(active) {} - - color_set(ImColor color) { - base = color; - hovered = color; - active = color; - } - }; - - bool Knob(const char *label, float *p_value, float v_min, float v_max, float speed = 0, const char *format = NULL, ImGuiKnobVariant variant = ImGuiKnobVariant_Tick, float size = 0, ImGuiKnobFlags flags = 0, int steps = 10); - bool KnobInt(const char *label, int *p_value, int v_min, int v_max, float speed = 0, const char *format = NULL, ImGuiKnobVariant variant = ImGuiKnobVariant_Tick, float size = 0, ImGuiKnobFlags flags = 0, int steps = 10); -}// namespace ImGuiKnobs diff --git a/third_party/imgui/pch.h b/third_party/imgui/pch.h deleted file mode 100644 index e69de29..0000000