修复图片大小不正确

example/src/main.cpp

@@ -31,8 +31,15 @@ int main(int argc, char* argv[]) {
 	auto image = std::make_shared<mimage>();
 	image->set_image(i);
 
+	auto hbox = std::make_shared<mh_box>();
+	hbox->add_child()
+	.auto_size()
+	[
+		image
+	];
+
 	const auto& window = mwindow::create({ 800, 600 }, L"Hello, World!");
-	window->set_content(image);
+	window->set_content(hbox);
 
 	mirage_app::get().run();
 	return 0;

src/mirage_render/render/texture2d.h

@@ -23,7 +23,9 @@ public:
 
 	[[nodiscard]] const auto& get_image() const { return image_; }
 	[[nodiscard]] const auto& get_size() const { return size_; }
+	[[nodiscard]] const auto& get_pixel_format() const { return pixel_format_; }
 private:
 	sg_image image_{};
+	sg_pixel_format pixel_format_{};
 	Eigen::Vector2i size_{};
 };

src/mirage_render/render/texture_sampler.h

@@ -80,7 +80,7 @@ public:
      * @param anisotropy 各向异性程度(1-16)
      * @return 具有各向异性过滤的采样器
      */
-    static texture_sampler_builder create_anisotropic(uint32_t anisotropy = 4);
+    static texture_sampler_builder create_anisotropic(uint32_t anisotropy = 16);
 
     /**
      * @brief 设置缩小过滤器

src/mirage_render/render/windows/texture2d.cpp

@@ -7,6 +7,8 @@
 
 void texture2d::create(void* in_data, const Eigen::Vector2i& in_size, sg_pixel_format in_pixel_format) {
 	auto format_info = sg_query_pixelformat(in_pixel_format);
+	pixel_format_ = in_pixel_format;
+	size_ = in_size;
 
 	sg_image_desc sg_desc{};
 	sg_desc.type = SG_IMAGETYPE_2D;

src/mirage_widget/widget/leaf_widget/mimage.cpp

@@ -12,11 +12,28 @@ void mimage::on_paint(mirage_paint_context& in_context) {
 		in_context.geo().get_local_size(),
 		in_context.geo(),
 		image_->get_image(),
-		sampler_type::default_,
+		sampler_type::anisotropic,
 		{ color_ }
 	);
 }
 
+void mimage::set_image(const std::shared_ptr<texture2d>& in_image) {
+	image_ = in_image;
+	auto image_format = image_->get_pixel_format();
+	// 根据像素格式选择合适的过滤器
+	if (image_format == sg_pixel_format::SG_PIXELFORMAT_BC1_RGBA ||
+		image_format == sg_pixel_format::SG_PIXELFORMAT_BC2_RGBA ||
+		image_format == sg_pixel_format::SG_PIXELFORMAT_BC3_RGBA ||
+		image_format == sg_pixel_format::SG_PIXELFORMAT_BC4_R ||
+		image_format == sg_pixel_format::SG_PIXELFORMAT_BC5_RG ||
+		image_format == sg_pixel_format::SG_PIXELFORMAT_BC6H_RGBF ||
+		image_format == sg_pixel_format::SG_PIXELFORMAT_BC7_RGBA) {
+		filter_ = sg_filter::SG_FILTER_NEAREST;
+	} else {
+		filter_ = sg_filter::SG_FILTER_LINEAR;
+	}
+}
+
 Eigen::Vector2f mimage::compute_desired_size(float in_layout_scale_multiplier) const {
 	if (image_) {
 		return image_->get_size().cast<float>();

src/mirage_widget/widget/leaf_widget/mimage.h

@@ -10,7 +10,7 @@ public:
 	Eigen::Vector2f compute_desired_size(float in_layout_scale_multiplier) const override;
 
 	const auto& get_image() const { return image_; }
-	void set_image(const std::shared_ptr<texture2d>& in_image) { image_ = in_image; }
+	void set_image(const std::shared_ptr<texture2d>& in_image);
 
 	const auto& get_color() const { return color_; }
 	void set_color(const linear_color& in_color) { color_ = in_color; }
@@ -18,4 +18,5 @@ private:
 	std::shared_ptr<texture2d> image_;
 	std::shared_ptr<texture_sampler> sampler_;
 	linear_color color_ = { 1, 1, 1, 1 };
+	sg_filter filter_{};
 };

src/mirage_widget/widget/mpanel_widget.h

@@ -72,14 +72,13 @@ public:
 	 *
 	 * 创建并添加一个新的子组件插槽到面板中。
 	 */
-	template<typename T>
 	auto add_slot() -> SlotType& {
 		auto& slot = slots_.emplace_back();
 		slot.slot_owner = shared_from_this();
 		invalidate(invalidate_reason::all);
 		return slot;
 	}
-	template<typename T, typename... Args>
+	template<typename... Args>
 	auto add_child(Args&&... in_args) -> SlotType& {
 		auto& slot = slots_.emplace_back(std::forward<Args>(in_args)...);
 		slot.slot_owner = shared_from_this();