mirror of
https://github.com/gnif/LookingGlass.git
synced 2024-11-15 02:28:24 +00:00
59 lines
1.0 KiB
GLSL
59 lines
1.0 KiB
GLSL
#version 300 es
|
|
#extension GL_OES_EGL_image_external_essl3 : enable
|
|
|
|
precision highp float;
|
|
|
|
#define EGL_SCALE_AUTO 0
|
|
#define EGL_SCALE_NEAREST 1
|
|
#define EGL_SCALE_LINEAR 2
|
|
#define EGL_SCALE_MAX 3
|
|
|
|
#include "color_blind.h"
|
|
#include "hdr.h"
|
|
|
|
in vec2 uv;
|
|
out vec4 color;
|
|
|
|
uniform sampler2D sampler1;
|
|
|
|
uniform int scaleAlgo;
|
|
|
|
uniform float nvGain;
|
|
uniform int cbMode;
|
|
uniform bool isHDR;
|
|
|
|
void main()
|
|
{
|
|
switch (scaleAlgo)
|
|
{
|
|
case EGL_SCALE_NEAREST:
|
|
{
|
|
vec2 ts = vec2(textureSize(sampler1, 0));
|
|
color = texelFetch(sampler1, ivec2(uv * ts), 0);
|
|
break;
|
|
}
|
|
|
|
case EGL_SCALE_LINEAR:
|
|
{
|
|
color = texture(sampler1, uv);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (isHDR)
|
|
color.rgb = mapToSDR(color.rgb);
|
|
|
|
if (cbMode > 0)
|
|
color = cbTransform(color, cbMode);
|
|
|
|
if (nvGain > 0.0)
|
|
{
|
|
highp float lumi = (0.2126 * color.r + 0.7152 * color.g + 0.0722 * color.b);
|
|
if (lumi < 0.5)
|
|
color *= atanh((1.0 - lumi) * 2.0 - 1.0) + 1.0;
|
|
color *= nvGain;
|
|
}
|
|
|
|
color.a = 1.0;
|
|
}
|