git.mutantstargoat.com Git - laserbrain_demo/blob - src/opengl.c

   1 #include "opengl.h"
   2 #include "logger.h"
   3
   4
   5 static void GLAPIENTRY gldebug_logger(GLenum src, GLenum type, GLuint id, GLenum severity,
   6                 GLsizei len, const char *msg, const void *cls);
   7
   8 static const char *gldebug_srcstr(unsigned int src);
   9 static const char *gldebug_typestr(unsigned int type);
  10 static const char *gldebug_sevstr(unsigned int sev);
  11
  12 struct GLCaps glcaps;
  13
  14 int init_opengl(void)
  15 {
  16         glewInit();
  17
  18         glcaps.debug = GLEW_ARB_debug_output;
  19
  20 #ifndef NDEBUG
  21         if(glcaps.debug) {
  22                 info_log("Installing OpenGL debug callback\n");
  23                 glDebugMessageCallback(gldebug_logger, 0);
  24         }
  25 #endif
  26
  27         return 0;
  28 }
  29
  30
  31 static void GLAPIENTRY gldebug_logger(GLenum src, GLenum type, GLuint id, GLenum severity,
  32                 GLsizei len, const char *msg, const void *cls)
  33 {
  34         static const char *fmt = "[GLDEBUG] (%s) %s: %s\n";
  35         switch(type) {
  36         case GL_DEBUG_TYPE_ERROR:
  37                 error_log(fmt, gldebug_srcstr(src), gldebug_typestr(type), msg);
  38                 break;
  39
  40         case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR:
  41         case GL_DEBUG_TYPE_PORTABILITY:
  42         case GL_DEBUG_TYPE_PERFORMANCE:
  43                 warning_log(fmt, gldebug_srcstr(src), gldebug_typestr(type), msg);
  44                 break;
  45
  46         default:
  47                 debug_log(fmt, gldebug_srcstr(src), gldebug_typestr(type), msg);
  48         }
  49 }
  50
  51 static const char *gldebug_srcstr(unsigned int src)
  52 {
  53         switch(src) {
  54         case GL_DEBUG_SOURCE_API:
  55                 return "api";
  56         case GL_DEBUG_SOURCE_WINDOW_SYSTEM:
  57                 return "wsys";
  58         case GL_DEBUG_SOURCE_SHADER_COMPILER:
  59                 return "sdrc";
  60         case GL_DEBUG_SOURCE_THIRD_PARTY:
  61                 return "3rdparty";
  62         case GL_DEBUG_SOURCE_APPLICATION:
  63                 return "app";
  64         case GL_DEBUG_SOURCE_OTHER:
  65                 return "other";
  66         default:
  67                 break;
  68         }
  69         return "unknown";
  70 }
  71
  72 static const char *gldebug_typestr(unsigned int type)
  73 {
  74         switch(type) {
  75         case GL_DEBUG_TYPE_ERROR:
  76                 return "error";
  77         case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR:
  78                 return "deprecated";
  79         case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR:
  80                 return "undefined behavior";
  81         case GL_DEBUG_TYPE_PORTABILITY:
  82                 return "portability warning";
  83         case GL_DEBUG_TYPE_PERFORMANCE:
  84                 return "performance warning";
  85         case GL_DEBUG_TYPE_OTHER:
  86                 return "other";
  87         default:
  88                 break;
  89         }
  90         return "unknown";
  91 }
  92
  93 static const char *gldebug_sevstr(unsigned int sev)
  94 {
  95         switch(sev) {
  96         case GL_DEBUG_SEVERITY_HIGH:
  97                 return "high";
  98         case GL_DEBUG_SEVERITY_MEDIUM:
  99                 return "medium";
 100         case GL_DEBUG_SEVERITY_LOW:
 101                 return "low";
 102         default:
 103                 break;
 104         }
 105         return "unknown";
 106 }