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Add basic OpenGL debug callback

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This commit is contained in:
AnyOldName3 2018-10-25 00:07:01 +01:00
parent 3ce261ddd4
commit 3d917fcbad
4 changed files with 81 additions and 1 deletions
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4
apps/openmw/engine.cpp
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@ -13,6 +13,7 @@
#include <components/debug/debuglog.hpp>
#include <components/misc/rng.hpp>
#include <components/misc/gldebug.hpp>
#include <components/vfs/manager.hpp>
#include <components/vfs/registerarchives.hpp>
@ -365,6 +366,7 @@ void OMW::Engine::createWindow(Settings::Manager& settings)
checkSDLError(SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8));
checkSDLError(SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 0));
checkSDLError(SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24));
checkSDLError(SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_DEBUG_FLAG));
if (antialiasing > 0)
{
@ -425,6 +427,8 @@ void OMW::Engine::createWindow(Settings::Manager& settings)
camera->setGraphicsContext(graphicsWindow);
camera->setViewport(0, 0, width, height);
mViewer->setRealizeOperation(new EnableGLDebugOperation());
mViewer->realize();
mViewer->getEventQueue()->getCurrentEventState()->setWindowRectangle(0, 0, width, height);

2
components/CMakeLists.txt
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@ -86,7 +86,7 @@ add_component_dir (esmterrain
)
add_component_dir (misc
constants utf8stream stringops resourcehelpers rng messageformatparser weakcache
constants utf8stream stringops resourcehelpers rng messageformatparser weakcache gldebug
)
add_component_dir (debug

60
components/misc/gldebug.cpp Normal file
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@ -0,0 +1,60 @@
#include "gldebug.hpp"
#include <components/debug/debuglog.hpp>
// OpenGL constants not provided by OSG:
#define GL_DEBUG_OUTPUT 0x92E0
#define GL_DEBUG_SEVERITY_MEDIUM 0x9147
#define GL_DEBUG_TYPE_ERROR 0x824C
void debugCallback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *message, const void *userParam)
{
Log(Debug::Error) << message;
}
void enableGLDebugExtension(unsigned int contextID)
{
typedef void (GL_APIENTRY *DEBUGPROC)(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *message, const void *userParam);
typedef void (GL_APIENTRY *GLDebugMessageControlFunction)(GLenum source, GLenum type, GLenum severity, GLsizei count, const GLuint *ids, GLboolean enabled);
typedef void (GL_APIENTRY *GLDebugMessageCallbackFunction)(DEBUGPROC, const void* userParam);
GLDebugMessageControlFunction glDebugMessageControl = nullptr;
GLDebugMessageCallbackFunction glDebugMessageCallback = nullptr;
if (osg::isGLExtensionSupported(contextID, "GL_KHR_debug"))
{
osg::setGLExtensionFuncPtr(glDebugMessageCallback, "glDebugMessageCallback");
osg::setGLExtensionFuncPtr(glDebugMessageControl, "glDebugMessageControl");
}
else if (osg::isGLExtensionSupported(contextID, "GL_ARB_debug_output"))
{
osg::setGLExtensionFuncPtr(glDebugMessageCallback, "glDebugMessageCallbackARB");
osg::setGLExtensionFuncPtr(glDebugMessageControl, "glDebugMessageControlARB");
}
else if (osg::isGLExtensionSupported(contextID, "GL_AMD_debug_output"))
{
osg::setGLExtensionFuncPtr(glDebugMessageCallback, "glDebugMessageCallbackAMD");
osg::setGLExtensionFuncPtr(glDebugMessageControl, "glDebugMessageControlAMD");
}
if (glDebugMessageCallback && glDebugMessageControl)
{
glEnable(GL_DEBUG_OUTPUT);
glDebugMessageControl(GL_DONT_CARE, GL_DEBUG_TYPE_ERROR, GL_DEBUG_SEVERITY_MEDIUM, 0, nullptr, true);
glDebugMessageCallback(debugCallback, nullptr);
Log(Debug::Info) << "OpenGL debug callback attached.";
}
}
EnableGLDebugOperation::EnableGLDebugOperation() : osg::GraphicsOperation("EnableGLDebugOperation", false)
{
}
void EnableGLDebugOperation::operator()(osg::GraphicsContext* graphicsContext)
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mMutex);
unsigned int contextID = graphicsContext->getState()->getContextID();
enableGLDebugExtension(contextID);
}

16
components/misc/gldebug.hpp Normal file
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@ -0,0 +1,16 @@
#ifndef OPENMW_COMPONENTS_MISC_GLDEBUG_H
#define OPENMW_COMPONENTS_MISC_GLDEBUG_H
#include <osgViewer/ViewerEventHandlers>
class EnableGLDebugOperation : public osg::GraphicsOperation
{
public:
EnableGLDebugOperation();
virtual void operator()(osg::GraphicsContext* graphicsContext);
private:
OpenThreads::Mutex mMutex;
};
#endif