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

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