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#include "qcocoaglcontext.h"
#include "qcocoawindow.h"
#include <qdebug.h>
#include <QtCore/private/qcore_mac_p.h>
#import <Cocoa/Cocoa.h>
QCocoaGLContext::QCocoaGLContext(const QGuiGLFormat &format, QPlatformGLContext *share)
: m_format(format)
{
NSOpenGLPixelFormat *pixelFormat = createNSOpenGLPixelFormat();
NSOpenGLContext *actualShare = share ? static_cast<QCocoaGLContext *>(share)->m_context : 0;
m_context = [NSOpenGLContext alloc];
[m_context initWithFormat:pixelFormat shareContext:actualShare];
}
// Match up with createNSOpenGLPixelFormat!
QGuiGLFormat QCocoaGLContext::format() const
{
return m_format;
}
void QCocoaGLContext::swapBuffers(const QPlatformGLSurface &surface)
{
QWindow *window = static_cast<const QCocoaGLSurface &>(surface).window;
setActiveWindow(window);
[m_context flushBuffer];
}
bool QCocoaGLContext::makeCurrent(const QPlatformGLSurface &surface)
{
QWindow *window = static_cast<const QCocoaGLSurface &>(surface).window;
setActiveWindow(window);
[m_context makeCurrentContext];
return true;
}
void QCocoaGLContext::setActiveWindow(QWindow *window)
{
if (window == m_currentWindow.data())
return;
if (m_currentWindow)
static_cast<QCocoaWindow *>(m_currentWindow.data()->handle())->setCurrentContext(0);
Q_ASSERT(window->handle());
m_currentWindow = window;
QCocoaWindow *cocoaWindow = static_cast<QCocoaWindow *>(window->handle());
cocoaWindow->setCurrentContext(this);
NSView *view = cocoaWindow->windowSurfaceView();
[m_context setView:view];
}
void QCocoaGLContext::doneCurrent()
{
if (m_currentWindow)
static_cast<QCocoaWindow *>(m_currentWindow.data()->handle())->setCurrentContext(0);
m_currentWindow.clear();
[NSOpenGLContext clearCurrentContext];
}
void (*QCocoaGLContext::getProcAddress(const QByteArray &procName)) ()
{
CFURLRef url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault,
CFSTR("/System/Library/Frameworks/OpenGL.framework"), kCFURLPOSIXPathStyle, false);
CFBundleRef bundle = CFBundleCreate(kCFAllocatorDefault, url);
CFStringRef procNameCF = QCFString::toCFStringRef(QString::fromAscii(procName.constData()));
void *proc = CFBundleGetFunctionPointerForName(bundle, procNameCF);
CFRelease(url);
CFRelease(bundle);
CFRelease(procNameCF);
return (void (*) ())proc;
}
void QCocoaGLContext::update()
{
[m_context update];
}
NSOpenGLPixelFormat *QCocoaGLContext::createNSOpenGLPixelFormat()
{
NSOpenGLPixelFormatAttribute attrs[] =
{
NSOpenGLPFADoubleBuffer,
NSOpenGLPFADepthSize, 32,
0
};
NSOpenGLPixelFormat* pixelFormat = [[NSOpenGLPixelFormat alloc] initWithAttributes:attrs];
return pixelFormat;
}
NSOpenGLContext *QCocoaGLContext::nsOpenGLContext() const
{
return m_context;
}
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