slang-shaders/misc/ntsc-colors.slang

#version 450

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

#pragma parameter intensity "NTSC Intensity" 1.0 0.0 1.0 0.05

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

#include "colorspace-tools.h"

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

void main()
{
     vec3 color = texture(Source, vTexCoord).rgb;
     color = mix(color.rgb, NTSCtoSRGB(color.rgb), params.intensity);
   FragColor = vec4(color, 1.0);
}