Add gl_debug cvar, if enabled the GL context will have GL_ARB_debug_output enabled...

[xonotic/darkplaces.git] / gl_backend.c

diff --git a/gl_backend.c b/gl_backend.c
index 73c011029e1f0158c884179fc16c0bdb64d0b767..52e392dcd1c607a596037b48a0978dded7d0022b 100644 (file)
--- a/gl_backend.c
+++ b/gl_backend.c
@@ -75,6 +75,7 @@
 
 #define MAX_RENDERTARGETS 4
 
 
 #define MAX_RENDERTARGETS 4
 

+cvar_t gl_debug = {0, "gl_debug", "0", "enables OpenGL debug output, 0 = off, 1 = HIGH severity only, 2 = also MEDIUM severity, 3 = also LOW severity messages.  (note: enabling may not take effect until vid_restart on some drivers)"};

 cvar_t gl_paranoid = {0, "gl_paranoid", "0", "enables OpenGL error checking and other tests"};
 cvar_t gl_printcheckerror = {0, "gl_printcheckerror", "0", "prints all OpenGL error checks, useful to identify location of driver crashes"};
 
 cvar_t gl_paranoid = {0, "gl_paranoid", "0", "enables OpenGL error checking and other tests"};
 cvar_t gl_printcheckerror = {0, "gl_printcheckerror", "0", "prints all OpenGL error checks, useful to identify location of driver crashes"};
 


@@ -151,6 +152,36 @@ void GL_PrintError(int errornumber, const char *filename, int linenumber)
                break;
        }
 }
                break;
        }
 }

+
+static void GLAPIENTRY GL_DebugOutputCallback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar* message, const GLvoid* userParam)
+{
+       const char *sev = "ENUM?", *typ = "ENUM?", *src = "ENUM?";
+       switch (severity)
+       {
+       case GL_DEBUG_SEVERITY_LOW_ARB: sev = "LOW"; break;
+       case GL_DEBUG_SEVERITY_MEDIUM_ARB: sev = "MED"; break;
+       case GL_DEBUG_SEVERITY_HIGH_ARB: sev = "HIGH"; break;
+       }
+       switch (type)
+       {
+       case GL_DEBUG_TYPE_ERROR_ARB: typ = "ERROR"; break;
+       case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB: typ = "DEPRECATED"; break;
+       case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB: typ = "UNDEFINED"; break;
+       case GL_DEBUG_TYPE_PORTABILITY_ARB: typ = "PORTABILITY"; break;
+       case GL_DEBUG_TYPE_PERFORMANCE_ARB: typ = "PERFORMANCE"; break;
+       case GL_DEBUG_TYPE_OTHER_ARB: typ = "OTHER"; break;
+       }
+       switch (source)
+       {
+       case GL_DEBUG_SOURCE_API_ARB: src = "API"; break;
+       case GL_DEBUG_SOURCE_SHADER_COMPILER_ARB: src = "SHADER"; break;
+       case GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB: src = "WIN"; break;
+       case GL_DEBUG_SOURCE_THIRD_PARTY_ARB: src = "THIRDPARTY"; break;
+       case GL_DEBUG_SOURCE_APPLICATION_ARB: src = "APP"; break;
+       case GL_DEBUG_SOURCE_OTHER_ARB: src = "OTHER"; break;
+       }
+       Con_Printf("GLDEBUG: %s %s %s: %u: %s\n", sev, typ, src, (unsigned int)id, message);
+}

 #endif
 
 #define BACKENDACTIVECHECK if (!gl_state.active) Sys_Error("GL backend function called when backend is not active");
 #endif
 
 #define BACKENDACTIVECHECK if (!gl_state.active) Sys_Error("GL backend function called when backend is not active");


@@ -414,7 +445,7 @@ void gl_backend_init(void)
        Cvar_RegisterVariable(&r_waterwarp);
        Cvar_RegisterVariable(&gl_polyblend);
        Cvar_RegisterVariable(&v_flipped);
        Cvar_RegisterVariable(&r_waterwarp);
        Cvar_RegisterVariable(&gl_polyblend);
        Cvar_RegisterVariable(&v_flipped);

-       Cvar_RegisterVariable(&gl_dither);
+       Cvar_RegisterVariable(&gl_debug);

        Cvar_RegisterVariable(&gl_paranoid);
        Cvar_RegisterVariable(&gl_printcheckerror);
 
        Cvar_RegisterVariable(&gl_paranoid);
        Cvar_RegisterVariable(&gl_printcheckerror);