shaders/tile_colour.h

   1 #ifndef SHADER_tile_colour_H
   2 #define SHADER_tile_colour_H
   3 static void shader_tile_colour_link(void);
   4 static void shader_tile_colour_register(void);
   5 static struct vg_shader _shader_tile_colour = {
   6    .name = "tile_colour",
   7    .link = shader_tile_colour_link,
   8    .vs =
   9 {
  10 .orig_file = "shaders/tile_colour.vs.glsl",
  11 .static_src =
  12 "layout (location=0) in vec2 a_co;\n"
  13 "uniform mat3 uPv;\n"
  14 "uniform vec3 uOffset;\n"
  15 "\n"
  16 "void main(){\n"
  17 "   gl_Position = vec4( uPv * vec3( a_co * uOffset.z + uOffset.xy, 1.0 ), 1.0 );\n"
  18 "}\n"
  19 ""},
  20    .fs =
  21 {
  22 .orig_file = "shaders/tile_colour.fs.glsl",
  23 .static_src =
  24 "out vec4 FragColor;\n"
  25 "uniform vec4 uColour;\n"
  26 "void main(){\n"
  27 "   FragColor = uColour;\n"
  28 "}\n"
  29 ""},
  30 };
  31
  32 static GLuint _uniform_tile_colour_uPv;
  33 static GLuint _uniform_tile_colour_uOffset;
  34 static GLuint _uniform_tile_colour_uColour;
  35 static void shader_tile_colour_uPv(m3x3f m){
  36    glUniformMatrix3fv(_uniform_tile_colour_uPv,1,GL_FALSE,(float*)m);
  37 }
  38 static void shader_tile_colour_uOffset(v3f const v){
  39    glUniform3fv(_uniform_tile_colour_uOffset,1,v);
  40 }
  41 static void shader_tile_colour_uColour(v4f const v){
  42    glUniform4fv(_uniform_tile_colour_uColour,1,v);
  43 }
  44 static void shader_tile_colour_register(void){
  45    vg_shader_register( &_shader_tile_colour );
  46 }
  47 static void shader_tile_colour_use(void){ glUseProgram(_shader_tile_colour.id); }
  48 static void shader_tile_colour_link(void){
  49    _uniform_tile_colour_uPv = glGetUniformLocation( _shader_tile_colour.id, "uPv" );
  50    _uniform_tile_colour_uOffset = glGetUniformLocation( _shader_tile_colour.id, "uOffset" );
  51    _uniform_tile_colour_uColour = glGetUniformLocation( _shader_tile_colour.id, "uColour" );
  52 }
  53 #endif /* SHADER_tile_colour_H */