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Fix monochrome shaders for GLES2

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Francisco Zurita 2017-02-05 01:38:48 -05:00 committed by Sergey Lipskiy
parent 15f90a0699
commit 341f9848bb
1 changed files with 26 additions and 12 deletions
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38
src/Graphics/OpenGLContext/GLSL/glsl_SpecialShadersFactory.cpp
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@ -89,18 +89,32 @@ namespace glsl {
public:
MonochromeFragmentShader(const opengl::GLInfo & _glinfo)
{
m_part =
"uniform sampler2D uColorImage; \n"
"OUT lowp vec4 fragColor; \n"
"void main() \n"
"{ \n"
" mediump ivec2 coord = ivec2(gl_FragCoord.xy); \n"
" lowp vec4 tex = texelFetch(uColorImage, coord, 0); \n"
//" lowp float c = (tex.r + tex.g + tex.b) / 3.0f; \n"
" lowp float c = dot(vec4(0.2126, 0.7152, 0.0722, 0.0), tex);\n"
" fragColor = vec4(c, c, c, 1.0); \n"
"} \n"
;
if (_glinfo.isGLES2) {
m_part =
"uniform sampler2D uColorImage; \n"
"uniform mediump vec2 uScreenSize; \n"
"void main() \n"
"{ \n"
" mediump vec2 coord = gl_FragCoord.xy/uScreenSize; \n"
" lowp vec4 tex = texture2D(uColorImage, coord); \n"
" lowp float c = dot(vec4(0.2126, 0.7152, 0.0722, 0.0), tex); \n"
" gl_FragColor = vec4(c, c, c, 1.0); \n"
"} \n"
;
} else {
m_part =
"uniform sampler2D uColorImage; \n"
"OUT lowp vec4 fragColor; \n"
"void main() \n"
"{ \n"
" mediump ivec2 coord = ivec2(gl_FragCoord.xy); \n"
" lowp vec4 tex = texelFetch(uColorImage, coord, 0); \n"
//" lowp float c = (tex.r + tex.g + tex.b) / 3.0f; \n"
" lowp float c = dot(vec4(0.2126, 0.7152, 0.0722, 0.0), tex);\n"
" fragColor = vec4(c, c, c, 1.0); \n"
"} \n"
;
}
}
};