struct MatrixBuffer
{
    matrix transform;
};
ParameterBlock<MatrixBuffer> matrix_buffer : register(b0);
SamplerState texture_sampler : register(s0);

struct VSInput {
    float2 position : POSITION;
    float4 color : COLOR;
};

struct PSInput {
    float4 position : SV_POSITION;
    float4 color : COLOR;
};

PSInput vertex_main(VSInput input)
{
    PSInput output;
    output.position = mul(float4(input.position, 0.0, 1.0), matrix_buffer.transform);
    output.color = input.color;
    return output;
}

float4 pixel_main(PSInput input) : SV_TARGET
{
    return input.color;
}