#version 450










layout(push_constant)uniform Push
{
 vec4 SourceSize;
 vec4 OriginalSize;
 vec4 OutputSize;
 uint FrameCount;
} params;

layout(std140, set = 0, binding = 0)uniform UBO
{
 mat4 MVP;
} global;




















float mod2(float x, float y)
{
 return x - y * floor(x / y);
}

#pragma stagevertex
layout(location = 0)in vec4 Position;
layout(location = 1)in vec2 TexCoord;
layout(location = 0)out vec2 vTexCoord;

void main()
{
   gl_Position = global . MVP * Position;
   vTexCoord = TexCoord;
}

#pragma stagefragment
layout(location = 0)in vec2 vTexCoord;
layout(location = 0)out vec4 FragColor;
layout(set = 0, binding = 2)uniform sampler2D Source;

void main()
{
      vec3 outcolor = texture(Source, vTexCoord). rgb;

      vec2 res;
 res . x = params . SourceSize . x;
 res . y = params . SourceSize . y;





 float gammaed = 0.15;

 float leifx_linegamma = gammaed;
      vec2 dithet = vTexCoord . xy * res . xy;
 dithet . y = vTexCoord . y * res . y;
 float horzline1 =(mod2(dithet . y, 2.0));
 if(horzline1 < 1)leifx_linegamma = 0;
 float leifx_gamma = 1.3 - gammaed + leifx_linegamma;


 outcolor . r = pow(outcolor . r, 1.0 / leifx_gamma);
 outcolor . g = pow(outcolor . g, 1.0 / leifx_gamma);
 outcolor . b = pow(outcolor . b, 1.0 / leifx_gamma);

   FragColor = vec4(outcolor, 1.0);
}