shaders/post_darken.h

   1 #ifndef SHADER_post_darken_H
   2 #define SHADER_post_darken_H
   3 static void shader_post_darken_link(void);
   4 static void shader_post_darken_register(void);
   5 static struct vg_shader _shader_post_darken = {
   6    .name = "post_darken",
   7    .link = shader_post_darken_link,
   8    .vs =
   9 {
  10 .orig_file = "shaders/post_darken.vs.glsl",
  11 .static_src =
  12 "layout (location=0) in vec2 a_co;\n"
  13 "out vec2 aTexCoords;\n"
  14 "\n"
  15 "void main(){\n"
  16 "       gl_Position = vec4( a_co * 2.0 - 1.0, 0.0, 1.0 );\n"
  17 "       aTexCoords = a_co;\n"
  18 "}\n"
  19 ""},
  20    .fs =
  21 {
  22 .orig_file = "shaders/post_darken.fs.glsl",
  23 .static_src =
  24 "uniform sampler2D uTexMain;\n"
  25 "out vec4 FragColor;\n"
  26 "\n"
  27 "in vec2 aTexCoords;\n"
  28 "\n"
  29 "void main(){\n"
  30 "       vec4 texture_sample = texture( uTexMain, aTexCoords );\n"
  31 "       FragColor = vec4(pow(texture_sample.rgb,vec3(2.2)), 1.0);\n"
  32 "}\n"
  33 ""},
  34 };
  35
  36 static GLuint _uniform_post_darken_uTexMain;
  37 static void shader_post_darken_uTexMain(int i){
  38    glUniform1i(_uniform_post_darken_uTexMain,i);
  39 }
  40 static void shader_post_darken_register(void){
  41    vg_shader_register( &_shader_post_darken );
  42 }
  43 static void shader_post_darken_use(void){ glUseProgram(_shader_post_darken.id); }
  44 static void shader_post_darken_link(void){
  45    _uniform_post_darken_uTexMain = glGetUniformLocation( _shader_post_darken.id, "uTexMain" );
  46 }
  47 #endif /* SHADER_post_darken_H */