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Codechange: [OpenGL] Enable driver debug messages if supported.

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This commit is contained in:
Michael Lutz 2021-01-16 16:43:07 +01:00
parent d7b96a424f
commit 3a77ade6b2
1 changed files with 58 additions and 0 deletions
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58
src/video/opengl.cpp
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@ -30,6 +30,9 @@
#include "../safeguards.h"
static PFNGLDEBUGMESSAGECONTROLPROC _glDebugMessageControl;
static PFNGLDEBUGMESSAGECALLBACKPROC _glDebugMessageCallback;
/* static */ OpenGLBackend *OpenGLBackend::instance = nullptr;
GetOGLProcAddressProc GetOGLProcAddress;
@ -109,6 +112,59 @@ bool IsOpenGLVersionAtLeast(byte major, byte minor)
return (_gl_major_ver > major) || (_gl_major_ver == major && _gl_minor_ver >= minor);
}
/** Callback to receive OpenGL debug messages. */
void APIENTRY DebugOutputCallback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *message, const void *userParam)
{
/* Make severity human readable. */
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;
}
/* Make type human readable.*/
const char *type_str = "Other";
switch (type) {
case GL_DEBUG_TYPE_ERROR: type_str = "Error"; break;
case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR: type_str = "Deprecated"; break;
case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR: type_str = "Undefined behaviour"; break;
case GL_DEBUG_TYPE_PERFORMANCE: type_str = "Performance"; break;
case GL_DEBUG_TYPE_PORTABILITY: type_str = "Portability"; break;
}
DEBUG(driver, 6, "OpenGL: %s (%s) - %s", type_str, severity_str, message);
}
/** Enable OpenGL debug messages if supported. */
void SetupDebugOutput()
{
#ifndef NO_DEBUG_MESSAGES
if (_debug_driver_level < 6) return;
if (IsOpenGLVersionAtLeast(4, 3)) {
_glDebugMessageControl = (PFNGLDEBUGMESSAGECONTROLPROC)GetOGLProcAddress("glDebugMessageControl");
_glDebugMessageCallback = (PFNGLDEBUGMESSAGECALLBACKPROC)GetOGLProcAddress("glDebugMessageCallback");
} else if (IsOpenGLExtensionSupported("GL_ARB_debug_output")) {
_glDebugMessageControl = (PFNGLDEBUGMESSAGECONTROLPROC)GetOGLProcAddress("glDebugMessageControlARB");
_glDebugMessageCallback = (PFNGLDEBUGMESSAGECALLBACKPROC)GetOGLProcAddress("glDebugMessageCallbackARB");
}
if (_glDebugMessageControl != nullptr && _glDebugMessageCallback != nullptr) {
/* Enable debug output. As synchronous debug output costs performance, we only enable it with a high debug level. */
glEnable(GL_DEBUG_OUTPUT);
if (_debug_driver_level >= 8) glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
_glDebugMessageCallback(&DebugOutputCallback, nullptr);
/* Enable all messages on highest debug level.*/
_glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, nullptr, _debug_driver_level >= 9 ? GL_TRUE : GL_FALSE);
/* Get debug messages for errors and undefined/deprecated behaviour. */
_glDebugMessageControl(GL_DONT_CARE, GL_DEBUG_TYPE_ERROR, GL_DONT_CARE, 0, nullptr, GL_TRUE);
_glDebugMessageControl(GL_DONT_CARE, GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR, GL_DONT_CARE, 0, nullptr, GL_TRUE);
_glDebugMessageControl(GL_DONT_CARE, GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR, GL_DONT_CARE, 0, nullptr, GL_TRUE);
}
#endif
}
/**
* Create and initialize the singleton back-end class.
@ -169,6 +225,8 @@ const char *OpenGLBackend::Init()
_gl_major_ver = atoi(ver);
_gl_minor_ver = minor != nullptr ? atoi(minor + 1) : 0;
SetupDebugOutput();
/* OpenGL 1.3 is the absolute minimum. */
if (!IsOpenGLVersionAtLeast(1, 3)) return "OpenGL version >= 1.3 required";
/* Check for non-power-of-two texture support. */