cnq3/code/client/cl_gl.cpp

106 lines
3.3 KiB
C++

/*
===========================================================================
Copyright (C) 2019 Gian 'myT' Schellenbaum
This file is part of Challenge Quake 3 (CNQ3).
Challenge Quake 3 is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Challenge Quake 3 is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
===========================================================================
*/
// shared OpenGL client code for printing debug context output
#include "client.h"
#include "../renderer/tr_local.h"
#if defined(_WIN32) && defined(_DEBUG)
#include <Windows.h>
#endif
#include "GL/glew.h"
static const char* GL_DebugSourceString( GLenum source )
{
switch (source) {
case GL_DEBUG_SOURCE_API: return "API";
case GL_DEBUG_SOURCE_WINDOW_SYSTEM: return "window system";
case GL_DEBUG_SOURCE_SHADER_COMPILER: return "shader compiler";
case GL_DEBUG_SOURCE_THIRD_PARTY: return "third-party";
case GL_DEBUG_SOURCE_APPLICATION: return "application";
case GL_DEBUG_SOURCE_OTHER: return "other";
default: return "?";
}
}
static const char* GL_DebugTypeString( GLenum type )
{
switch (type) {
case GL_DEBUG_TYPE_ERROR: return "^1error";
case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR: return "^1deprecated behavior";
case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR: return "^1undefined behavior";
case GL_DEBUG_TYPE_PORTABILITY: return "portability";
case GL_DEBUG_TYPE_PERFORMANCE: return "^3performance";
case GL_DEBUG_TYPE_MARKER: return "marker";
case GL_DEBUG_TYPE_PUSH_GROUP: return "push group";
case GL_DEBUG_TYPE_POP_GROUP: return "pop group";
case GL_DEBUG_TYPE_OTHER: return "other";
default: return "?";
}
}
static const char* GL_DebugSeverityString( GLenum severity )
{
switch (severity) {
case GL_DEBUG_SEVERITY_LOW: return "low-severity";
case GL_DEBUG_SEVERITY_MEDIUM: return "medium-severity";
case GL_DEBUG_SEVERITY_HIGH: return "^3high-severity";
case GL_DEBUG_SEVERITY_NOTIFICATION: return "notification";
default: return "?";
}
}
static void GLAPIENTRY GL_DebugCallback( GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar* message, const void* userParam )
{
const char* msg = va(
"^5GL Debug: ^7%s^7/%s^7/%s^7: %s\n",
GL_DebugSeverityString(severity), GL_DebugSourceString(source), GL_DebugTypeString(type), message);
Com_Printf(msg);
#if defined(_WIN32) && defined(_DEBUG)
OutputDebugStringA(msg);
#endif
}
qbool CL_GL_WantDebug()
{
#if defined(_DEBUG)
return r_khr_debug->integer != 0;
#else
return r_khr_debug->integer == 1;
#endif
}
void CL_GL_Init()
{
const qbool enableDebug = CL_GL_WantDebug() && (GLEW_KHR_debug || GLEW_VERSION_4_3);
if (!enableDebug)
return;
glEnable(GL_DEBUG_OUTPUT);
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS); // bad performance but can get access to the call stack...
glDebugMessageCallback(&GL_DebugCallback, NULL);
ri.Printf(PRINT_ALL, "OpenGL debug output is now active\n");
}