mirror of
https://github.com/gnif/LookingGlass.git
synced 2024-12-24 06:41:46 +00:00
53 lines
994 B
GLSL
53 lines
994 B
GLSL
#version 300 es
|
|
|
|
in highp vec2 uv;
|
|
out highp vec4 color;
|
|
|
|
uniform int nearest;
|
|
uniform highp vec2 size;
|
|
|
|
uniform int nv;
|
|
uniform highp float nvGain;
|
|
|
|
uniform sampler2D sampler1;
|
|
uniform sampler2D sampler2;
|
|
uniform sampler2D sampler3;
|
|
|
|
void main()
|
|
{
|
|
highp vec4 yuv;
|
|
if(nearest == 1)
|
|
{
|
|
yuv = vec4(
|
|
texture(sampler1, uv).r,
|
|
texture(sampler2, uv).r,
|
|
texture(sampler3, uv).r,
|
|
1.0
|
|
);
|
|
}
|
|
else
|
|
{
|
|
highp ivec2 px = ivec2(uv * size);
|
|
yuv = vec4(
|
|
texelFetch(sampler1, px, 0).r,
|
|
texelFetch(sampler2, px, 0).r,
|
|
texelFetch(sampler3, px, 0).r,
|
|
1.0
|
|
);
|
|
}
|
|
|
|
highp mat4 yuv_to_rgb = mat4(
|
|
1.0, 0.0 , 1.402, -0.701,
|
|
1.0, -0.344, -0.714, 0.529,
|
|
1.0, 1.772, 0.0 , -0.886,
|
|
1.0, 1.0 , 1.0 , 1.0
|
|
);
|
|
|
|
color = yuv * yuv_to_rgb;
|
|
if (nv == 1)
|
|
{
|
|
highp float lumi = 1.0 - (0.2126 * color.r + 0.7152 * color.g + 0.0722 * color.b);
|
|
color *= 1.0 + lumi;
|
|
color *= nvGain;
|
|
}
|
|
}
|