shaders/routeui.h

   1 #ifndef SHADER_routeui_H
   2 #define SHADER_routeui_H
   3 static void shader_routeui_link(void);
   4 static void shader_routeui_register(void);
   5 static struct vg_shader _shader_routeui = {
   6    .name = "routeui",
   7    .link = shader_routeui_link,
   8    .vs =
   9 {
  10 .orig_file = "../../shaders/routeui.vs",
  11 .static_src =
  12 "layout (location=0) in vec2 a_co;\n"
  13 "\n"
  14 "uniform vec4 uOffset;\n"
  15 "\n"
  16 "void main()\n"
  17 "{\n"
  18 "   float fbarx = (a_co.x+uOffset.x) * uOffset.z;\n"
  19 "   float fbary = a_co.y*uOffset.w + uOffset.y;\n"
  20 "\n"
  21 "   vec2 vpos = vec2( fbarx, fbary );\n"
  22 "   gl_Position = vec4(vpos,0.0,1.0);\n"
  23 "}\n"
  24 ""},
  25    .fs =
  26 {
  27 .orig_file = "../../shaders/routeui.fs",
  28 .static_src =
  29 "out vec4 FragColor;\n"
  30 "\n"
  31 "uniform vec4 uColour;\n"
  32 "\n"
  33 "void main()\n"
  34 "{\n"
  35 "   FragColor = uColour;\n"
  36 "}\n"
  37 ""},
  38 };
  39
  40 static GLuint _uniform_routeui_uOffset;
  41 static GLuint _uniform_routeui_uColour;
  42 static void shader_routeui_uOffset(v4f v){
  43    glUniform4fv( _uniform_routeui_uOffset, 1, v );
  44 }
  45 static void shader_routeui_uColour(v4f v){
  46    glUniform4fv( _uniform_routeui_uColour, 1, v );
  47 }
  48 static void shader_routeui_register(void){
  49    vg_shader_register( &_shader_routeui );
  50 }
  51 static void shader_routeui_use(void){ glUseProgram(_shader_routeui.id); }
  52 static void shader_routeui_link(void){
  53    _uniform_routeui_uOffset = glGetUniformLocation( _shader_routeui.id, "uOffset" );
  54    _uniform_routeui_uColour = glGetUniformLocation( _shader_routeui.id, "uColour" );
  55 }
  56 #endif /* SHADER_routeui_H */