shaders/blitcolour.h

   1 #ifndef SHADER_blitcolour_H
   2 #define SHADER_blitcolour_H
   3 static void shader_blitcolour_link(void);
   4 static void shader_blitcolour_register(void);
   5 static struct vg_shader _shader_blitcolour = {
   6    .name = "blitcolour",
   7    .link = shader_blitcolour_link,
   8    .vs =
   9 {
  10 .orig_file = "shaders/blit.vs",
  11 .static_src =
  12 "layout (location=0) in vec2 a_co;\n"
  13 "out vec2 aUv;\n"
  14 "\n"
  15 "uniform vec2 uInverseRatio;\n"
  16 "\n"
  17 "void main()\n"
  18 "{\n"
  19 "   gl_Position = vec4(a_co*2.0-1.0,0.0,1.0);\n"
  20 "   aUv = a_co * uInverseRatio;\n"
  21 "}\n"
  22 ""},
  23    .fs =
  24 {
  25 .orig_file = "shaders/colour.fs",
  26 .static_src =
  27 "out vec4 FragColor;\n"
  28 "uniform vec4 uColour;\n"
  29 "\n"
  30 "in vec2 aUv;\n"
  31 "\n"
  32 "void main()\n"
  33 "{\n"
  34 "   FragColor = uColour;\n"
  35 "}\n"
  36 ""},
  37 };
  38
  39 static GLuint _uniform_blitcolour_uInverseRatio;
  40 static GLuint _uniform_blitcolour_uColour;
  41 static void shader_blitcolour_uInverseRatio(v2f v){
  42    glUniform2fv(_uniform_blitcolour_uInverseRatio,1,v);
  43 }
  44 static void shader_blitcolour_uColour(v4f v){
  45    glUniform4fv(_uniform_blitcolour_uColour,1,v);
  46 }
  47 static void shader_blitcolour_register(void){
  48    vg_shader_register( &_shader_blitcolour );
  49 }
  50 static void shader_blitcolour_use(void){ glUseProgram(_shader_blitcolour.id); }
  51 static void shader_blitcolour_link(void){
  52    _uniform_blitcolour_uInverseRatio = glGetUniformLocation( _shader_blitcolour.id, "uInverseRatio" );
  53    _uniform_blitcolour_uColour = glGetUniformLocation( _shader_blitcolour.id, "uColour" );
  54 }
  55 #endif /* SHADER_blitcolour_H */