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gl_errors.cpp
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gl_errors.cpp
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#include "gl_errors.h"
#include <glad/glad.h>
#include <iostream>
void GLAPIENTRY glDebugCallback(GLenum source, GLenum type, GLuint, GLenum severity,
GLsizei, const char* message, const void*)
{
const char* severity_str = "?";
switch (severity) {
case GL_DEBUG_SEVERITY_HIGH:
severity_str = "high";
break;
case GL_DEBUG_SEVERITY_MEDIUM:
severity_str = "medium";
break;
case GL_DEBUG_SEVERITY_LOW:
severity_str = "low";
break;
case GL_DEBUG_SEVERITY_NOTIFICATION:
return;
}
const char* src = "?";
switch (source) {
case GL_DEBUG_SOURCE_API:
src = "API";
break;
case GL_DEBUG_SOURCE_WINDOW_SYSTEM:
src = "window system";
break;
case GL_DEBUG_SOURCE_SHADER_COMPILER:
src = "shader compiler";
break;
case GL_DEBUG_SOURCE_THIRD_PARTY:
src = "third party";
break;
case GL_DEBUG_SOURCE_APPLICATION:
src = "app";
break;
case GL_DEBUG_SOURCE_OTHER:
src = "other";
break;
}
const char* type_str = "?";
switch (type) {
case GL_DEBUG_TYPE_ERROR:
type_str = "error";
break;
case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR:
type_str = "deprecated behavior";
break;
case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR:
type_str = "undefined behavior";
break;
case GL_DEBUG_TYPE_PORTABILITY:
type_str = "portability";
break;
case GL_DEBUG_TYPE_MARKER:
type_str = "marker";
break;
case GL_DEBUG_TYPE_PUSH_GROUP:
type_str = "push group";
break;
case GL_DEBUG_TYPE_POP_GROUP:
type_str = "pop group";
break;
case GL_DEBUG_TYPE_OTHER:
type_str = "other";
break;
}
std::cerr << "OpenGL Message\nType: " << type_str << "\nSeverity: " << severity_str
<< "\nSource: " << src << "\nMessage: " << message << "\n\n";
}
void initGLDebug()
{
#ifndef __APPLE__
#ifndef NDEBUG
glEnable(GL_DEBUG_OUTPUT);
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS); // disable if in release
#endif
glDebugMessageCallback(glDebugCallback, nullptr);
// this disables messages printed for successfully compiled shaders
glDebugMessageControl(GL_DEBUG_SOURCE_SHADER_COMPILER, GL_DEBUG_TYPE_OTHER,
GL_DEBUG_SEVERITY_NOTIFICATION, 0, nullptr, GL_FALSE);
#endif
}
void glCheckError(const char* file, unsigned int line, const char* expression)
{
// Get the last error
GLenum errorCode = glGetError();
while (errorCode != GL_NO_ERROR) {
std::string fileString = file;
std::string error = "Unknown error";
std::string description = "No description";
// Decode the error code
switch (errorCode) {
case GL_INVALID_ENUM: {
error = "GL_INVALID_ENUM";
description = "An unacceptable value has been specified "
"for an enumerated argument.";
break;
}
case GL_INVALID_VALUE: {
error = "GL_INVALID_VALUE";
description = "A numeric argument is out of range.";
break;
}
case GL_INVALID_OPERATION: {
error = "GL_INVALID_OPERATION";
description = "The specified operation is not allowed in "
"the current state.";
break;
}
case GL_OUT_OF_MEMORY: {
error = "GL_OUT_OF_MEMORY";
description = "There is not enough memory left to execute "
"the command.";
break;
}
}
// Log the error
std::cerr << "An internal OpenGL call failed in "
<< fileString.substr(fileString.find_last_of("\\/") + 1).c_str() << "("
<< line << ")."
<< "\nExpression:\n " << expression << "\nError description:\n "
<< error.c_str() << "\n " << description.c_str() << "\n"
<< std::endl;
glCheckError(file, line, expression);
exit(-1);
}
}