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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtOpenGL module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qgl.h"
// There are functions that are deprecated in 10.5, but really there's no way around them
// for Carbon, so just undefine them.
#undef DEPRECATED_ATTRIBUTE
#define DEPRECATED_ATTRIBUTE
#if defined(Q_WS_MAC)
#ifndef QT_MAC_USE_COCOA
#ifdef qDebug
# undef qDebug
# include <AGL/agl.h>
# include <AGL/aglRenderers.h>
# include <OpenGL/gl.h>
# ifdef QT_NO_DEBUG
# define qDebug qt_noop(),1?(void)0:qDebug
# endif
#else
# include <AGL/agl.h>
# include <AGL/aglRenderers.h>
# include <OpenGL/gl.h>
#endif
#else
#include <private/qcocoaview_mac_p.h>
#endif
#include <OpenGL/gl.h>
#include <CoreServices/CoreServices.h>
#include <private/qfont_p.h>
#include <private/qfontengine_p.h>
#include <private/qgl_p.h>
#include <private/qpaintengine_opengl_p.h>
#include <private/qt_mac_p.h>
#include <qpixmap.h>
#include <qtimer.h>
#include <qapplication.h>
#include <qstack.h>
#include <qdesktopwidget.h>
#include <qdebug.h>
QT_BEGIN_NAMESPACE
#ifdef QT_MAC_USE_COCOA
QT_END_NAMESPACE
QT_FORWARD_DECLARE_CLASS(QWidget)
QT_FORWARD_DECLARE_CLASS(QWidgetPrivate)
QT_FORWARD_DECLARE_CLASS(QGLWidgetPrivate)
QT_BEGIN_NAMESPACE
void *qt_current_nsopengl_context()
{
return [NSOpenGLContext currentContext];
}
static GLint attribValue(NSOpenGLPixelFormat *fmt, NSOpenGLPixelFormatAttribute attrib)
{
GLint res;
[fmt getValues:&res forAttribute:attrib forVirtualScreen:0];
return res;
}
static int def(int val, int defVal)
{
return val != -1 ? val : defVal;
}
#else
QRegion qt_mac_get_widget_rgn(const QWidget *widget);
#endif
extern quint32 *qt_mac_pixmap_get_base(const QPixmap *);
extern int qt_mac_pixmap_get_bytes_per_line(const QPixmap *);
extern RgnHandle qt_mac_get_rgn(); //qregion_mac.cpp
extern void qt_mac_dispose_rgn(RgnHandle); //qregion_mac.cpp
extern QRegion qt_mac_convert_mac_region(RgnHandle); //qregion_mac.cpp
extern void qt_mac_to_pascal_string(QString s, Str255 str, TextEncoding encoding=0, int len=-1); //qglobal.cpp
/*
QGLTemporaryContext implementation
*/
class QGLTemporaryContextPrivate
{
public:
#ifndef QT_MAC_USE_COCOA
AGLContext ctx;
#else
NSOpenGLContext *ctx;
#endif
};
QGLTemporaryContext::QGLTemporaryContext(bool, QWidget *)
: d(new QGLTemporaryContextPrivate)
{
d->ctx = 0;
#ifndef QT_MAC_USE_COCOA
GLint attribs[] = {AGL_RGBA, AGL_NONE};
AGLPixelFormat fmt = aglChoosePixelFormat(0, 0, attribs);
if (!fmt) {
qDebug("QGLTemporaryContext: Couldn't find any RGB visuals");
return;
}
d->ctx = aglCreateContext(fmt, 0);
if (!d->ctx)
qDebug("QGLTemporaryContext: Unable to create context");
else
aglSetCurrentContext(d->ctx);
aglDestroyPixelFormat(fmt);
#else
QMacCocoaAutoReleasePool pool;
NSOpenGLPixelFormatAttribute attribs[] = { 0 };
NSOpenGLPixelFormat *fmt = [[NSOpenGLPixelFormat alloc] initWithAttributes:attribs];
if (!fmt) {
qWarning("QGLTemporaryContext: Cannot find any visuals");
return;
}
d->ctx = [[NSOpenGLContext alloc] initWithFormat:fmt shareContext:0];
if (!d->ctx)
qWarning("QGLTemporaryContext: Cannot create context");
else
[d->ctx makeCurrentContext];
[fmt release];
#endif
}
QGLTemporaryContext::~QGLTemporaryContext()
{
if (d->ctx) {
#ifndef QT_MAC_USE_COCOA
aglSetCurrentContext(0);
aglDestroyContext(d->ctx);
#else
[NSOpenGLContext clearCurrentContext];
[d->ctx release];
#endif
}
}
bool QGLFormat::hasOpenGL()
{
return true;
}
bool QGLFormat::hasOpenGLOverlays()
{
return false;
}
bool QGLContext::chooseContext(const QGLContext *shareContext)
{
QMacCocoaAutoReleasePool pool;
Q_D(QGLContext);
d->cx = 0;
d->vi = chooseMacVisual(0);
if (!d->vi)
return false;
#ifndef QT_MAC_USE_COCOA
AGLPixelFormat fmt = (AGLPixelFormat)d->vi;
GLint res;
aglDescribePixelFormat(fmt, AGL_LEVEL, &res);
d->glFormat.setPlane(res);
if (deviceIsPixmap())
res = 0;
else
aglDescribePixelFormat(fmt, AGL_DOUBLEBUFFER, &res);
d->glFormat.setDoubleBuffer(res);
aglDescribePixelFormat(fmt, AGL_DEPTH_SIZE, &res);
d->glFormat.setDepth(res);
if (d->glFormat.depth())
d->glFormat.setDepthBufferSize(res);
aglDescribePixelFormat(fmt, AGL_RGBA, &res);
d->glFormat.setRgba(res);
aglDescribePixelFormat(fmt, AGL_RED_SIZE, &res);
d->glFormat.setRedBufferSize(res);
aglDescribePixelFormat(fmt, AGL_GREEN_SIZE, &res);
d->glFormat.setGreenBufferSize(res);
aglDescribePixelFormat(fmt, AGL_BLUE_SIZE, &res);
d->glFormat.setBlueBufferSize(res);
aglDescribePixelFormat(fmt, AGL_ALPHA_SIZE, &res);
d->glFormat.setAlpha(res);
if (d->glFormat.alpha())
d->glFormat.setAlphaBufferSize(res);
aglDescribePixelFormat(fmt, AGL_ACCUM_RED_SIZE, &res);
// Bug in Apple OpenGL (rdr://5015603), when we don't have an accumulation
// buffer, it still claims that we have a 16-bit one (which is pretty rare).
// So, we just assume we can never have a buffer that small.
d->glFormat.setAccum(res > 5);
if (d->glFormat.accum())
d->glFormat.setAccumBufferSize(res);
aglDescribePixelFormat(fmt, AGL_STENCIL_SIZE, &res);
d->glFormat.setStencil(res);
if (d->glFormat.stencil())
d->glFormat.setStencilBufferSize(res);
aglDescribePixelFormat(fmt, AGL_STEREO, &res);
d->glFormat.setStereo(res);
aglDescribePixelFormat(fmt, AGL_SAMPLE_BUFFERS_ARB, &res);
d->glFormat.setSampleBuffers(res);
if (d->glFormat.sampleBuffers()) {
aglDescribePixelFormat(fmt, AGL_SAMPLES_ARB, &res);
d->glFormat.setSamples(res);
}
#else
NSOpenGLPixelFormat *fmt = static_cast<NSOpenGLPixelFormat *>(d->vi);
d->glFormat = QGLFormat();
// ### make sure to reset other options
d->glFormat.setDoubleBuffer(attribValue(fmt, NSOpenGLPFADoubleBuffer));
int depthSize = attribValue(fmt, NSOpenGLPFADepthSize);
d->glFormat.setDepth(depthSize > 0);
if (depthSize > 0)
d->glFormat.setDepthBufferSize(depthSize);
int alphaSize = attribValue(fmt, NSOpenGLPFAAlphaSize);
d->glFormat.setAlpha(alphaSize > 0);
if (alphaSize > 0)
d->glFormat.setAlphaBufferSize(alphaSize);
int accumSize = attribValue(fmt, NSOpenGLPFAAccumSize);
d->glFormat.setAccum(accumSize > 0);
if (accumSize > 0)
d->glFormat.setAccumBufferSize(accumSize);
int stencilSize = attribValue(fmt, NSOpenGLPFAStencilSize);
d->glFormat.setStencil(stencilSize > 0);
if (stencilSize > 0)
d->glFormat.setStencilBufferSize(stencilSize);
d->glFormat.setStereo(attribValue(fmt, NSOpenGLPFAStereo));
int sampleBuffers = attribValue(fmt, NSOpenGLPFASampleBuffers);
d->glFormat.setSampleBuffers(sampleBuffers);
if (sampleBuffers > 0)
d->glFormat.setSamples(attribValue(fmt, NSOpenGLPFASamples));
#endif
if (shareContext && (!shareContext->isValid() || !shareContext->d_func()->cx)) {
qWarning("QGLContext::chooseContext: Cannot share with invalid context");
shareContext = 0;
}
// sharing between rgba and color-index will give wrong colors
if (shareContext && (format().rgba() != shareContext->format().rgba()))
shareContext = 0;
#ifndef QT_MAC_USE_COCOA
AGLContext ctx = aglCreateContext(fmt, (AGLContext) (shareContext ? shareContext->d_func()->cx : 0));
#else
NSOpenGLContext *ctx = [[NSOpenGLContext alloc] initWithFormat:fmt
shareContext:(shareContext ? static_cast<NSOpenGLContext *>(shareContext->d_func()->cx)
: 0)];
#endif
if (!ctx) {
#ifndef QT_MAC_USE_COCOA
GLenum err = aglGetError();
if (err == AGL_BAD_MATCH || err == AGL_BAD_CONTEXT) {
if (shareContext && shareContext->d_func()->cx) {
qWarning("QGLContext::chooseContext(): Context sharing mismatch!");
if (!(ctx = aglCreateContext(fmt, 0)))
return false;
shareContext = 0;
}
}
#else
if (shareContext) {
ctx = [[NSOpenGLContext alloc] initWithFormat:fmt shareContext:0];
if (ctx) {
qWarning("QGLContext::chooseContext: Context sharing mismatch");
shareContext = 0;
}
}
#endif
if (!ctx) {
qWarning("QGLContext::chooseContext: Unable to create QGLContext");
return false;
}
}
d->cx = ctx;
if (shareContext && shareContext->d_func()->cx) {
QGLContext *share = const_cast<QGLContext *>(shareContext);
d->sharing = true;
share->d_func()->sharing = true;
}
if (deviceIsPixmap())
updatePaintDevice();
// vblank syncing
GLint interval = d->reqFormat.swapInterval();
if (interval != -1) {
#ifndef QT_MAC_USE_COCOA
aglSetInteger((AGLContext)d->cx, AGL_SWAP_INTERVAL, &interval);
if (interval != 0)
aglEnable((AGLContext)d->cx, AGL_SWAP_INTERVAL);
else
aglDisable((AGLContext)d->cx, AGL_SWAP_INTERVAL);
#else
[ctx setValues:&interval forParameter:NSOpenGLCPSwapInterval];
#endif
}
#ifndef QT_MAC_USE_COCOA
aglGetInteger((AGLContext)d->cx, AGL_SWAP_INTERVAL, &interval);
#else
[ctx getValues:&interval forParameter:NSOpenGLCPSwapInterval];
#endif
d->glFormat.setSwapInterval(interval);
return true;
}
void *QGLContextPrivate::tryFormat(const QGLFormat &format)
{
static const int Max = 40;
#ifndef QT_MAC_USE_COCOA
GLint attribs[Max], cnt = 0;
bool device_is_pixmap = (paintDevice->devType() == QInternal::Pixmap);
attribs[cnt++] = AGL_RGBA;
attribs[cnt++] = AGL_BUFFER_SIZE;
attribs[cnt++] = device_is_pixmap ? static_cast<QPixmap *>(paintDevice)->depth() : 32;
attribs[cnt++] = AGL_LEVEL;
attribs[cnt++] = format.plane();
if (format.redBufferSize() != -1) {
attribs[cnt++] = AGL_RED_SIZE;
attribs[cnt++] = format.redBufferSize();
}
if (format.greenBufferSize() != -1) {
attribs[cnt++] = AGL_GREEN_SIZE;
attribs[cnt++] = format.greenBufferSize();
}
if (format.blueBufferSize() != -1) {
attribs[cnt++] = AGL_BLUE_SIZE;
attribs[cnt++] = format.blueBufferSize();
}
if (device_is_pixmap) {
attribs[cnt++] = AGL_PIXEL_SIZE;
attribs[cnt++] = static_cast<QPixmap *>(paintDevice)->depth();
attribs[cnt++] = AGL_OFFSCREEN;
if (!format.alpha()) {
attribs[cnt++] = AGL_ALPHA_SIZE;
attribs[cnt++] = 8;
}
} else {
if (format.doubleBuffer())
attribs[cnt++] = AGL_DOUBLEBUFFER;
}
if (format.stereo())
attribs[cnt++] = AGL_STEREO;
if (format.alpha()) {
attribs[cnt++] = AGL_ALPHA_SIZE;
attribs[cnt++] = format.alphaBufferSize() == -1 ? 8 : format.alphaBufferSize();
}
if (format.stencil()) {
attribs[cnt++] = AGL_STENCIL_SIZE;
attribs[cnt++] = format.stencilBufferSize() == -1 ? 8 : format.stencilBufferSize();
}
if (format.depth()) {
attribs[cnt++] = AGL_DEPTH_SIZE;
attribs[cnt++] = format.depthBufferSize() == -1 ? 32 : format.depthBufferSize();
}
if (format.accum()) {
attribs[cnt++] = AGL_ACCUM_RED_SIZE;
attribs[cnt++] = format.accumBufferSize() == -1 ? 1 : format.accumBufferSize();
attribs[cnt++] = AGL_ACCUM_BLUE_SIZE;
attribs[cnt++] = format.accumBufferSize() == -1 ? 1 : format.accumBufferSize();
attribs[cnt++] = AGL_ACCUM_GREEN_SIZE;
attribs[cnt++] = format.accumBufferSize() == -1 ? 1 : format.accumBufferSize();
attribs[cnt++] = AGL_ACCUM_ALPHA_SIZE;
attribs[cnt++] = format.accumBufferSize() == -1 ? 1 : format.accumBufferSize();
}
if (format.sampleBuffers()) {
attribs[cnt++] = AGL_SAMPLE_BUFFERS_ARB;
attribs[cnt++] = 1;
attribs[cnt++] = AGL_SAMPLES_ARB;
attribs[cnt++] = format.samples() == -1 ? 4 : format.samples();
}
attribs[cnt] = AGL_NONE;
Q_ASSERT(cnt < Max);
return aglChoosePixelFormat(0, 0, attribs);
#else
NSOpenGLPixelFormatAttribute attribs[Max];
int cnt = 0;
int devType = paintDevice->devType();
bool device_is_pixmap = (devType == QInternal::Pixmap);
int depth = device_is_pixmap ? static_cast<QPixmap *>(paintDevice)->depth() : 32;
attribs[cnt++] = NSOpenGLPFAColorSize;
attribs[cnt++] = depth;
if (device_is_pixmap) {
attribs[cnt++] = NSOpenGLPFAOffScreen;
} else {
if (format.doubleBuffer())
attribs[cnt++] = NSOpenGLPFADoubleBuffer;
}
if (glFormat.stereo())
attribs[cnt++] = NSOpenGLPFAStereo;
if (device_is_pixmap || format.alpha()) {
attribs[cnt++] = NSOpenGLPFAAlphaSize;
attribs[cnt++] = def(format.alphaBufferSize(), 8);
}
if (format.stencil()) {
attribs[cnt++] = NSOpenGLPFAStencilSize;
attribs[cnt++] = def(format.stencilBufferSize(), 8);
}
if (format.depth()) {
attribs[cnt++] = NSOpenGLPFADepthSize;
attribs[cnt++] = def(format.depthBufferSize(), 32);
}
if (format.accum()) {
attribs[cnt++] = NSOpenGLPFAAccumSize;
attribs[cnt++] = def(format.accumBufferSize(), 1);
}
if (format.sampleBuffers()) {
attribs[cnt++] = NSOpenGLPFASampleBuffers;
attribs[cnt++] = 1;
attribs[cnt++] = NSOpenGLPFASamples;
attribs[cnt++] = def(format.samples(), 4);
}
if (format.directRendering())
attribs[cnt++] = NSOpenGLPFAAccelerated;
if (devType == QInternal::Pbuffer)
attribs[cnt++] = NSOpenGLPFAPixelBuffer;
attribs[cnt] = 0;
Q_ASSERT(cnt < Max);
return [[NSOpenGLPixelFormat alloc] initWithAttributes:attribs];
#endif
}
void QGLContextPrivate::clearDrawable()
{
[static_cast<NSOpenGLContext *>(cx) clearDrawable];
}
/*!
\bold{Mac OS X only:} This virtual function tries to find a visual that
matches the format, reducing the demands if the original request
cannot be met.
The algorithm for reducing the demands of the format is quite
simple-minded, so override this method in your subclass if your
application has spcific requirements on visual selection.
The \a handle argument is always zero and is not used
\sa chooseContext()
*/
void *QGLContext::chooseMacVisual(GDHandle /* handle */)
{
Q_D(QGLContext);
void *fmt = d->tryFormat(d->glFormat);
if (!fmt && d->glFormat.stereo()) {
d->glFormat.setStereo(false);
fmt = d->tryFormat(d->glFormat);
}
if (!fmt && d->glFormat.sampleBuffers()) {
d->glFormat.setSampleBuffers(false);
fmt = d->tryFormat(d->glFormat);
}
if (!fmt)
qWarning("QGLContext::chooseMacVisual: Unable to choose a pixel format");
return fmt;
}
void QGLContext::reset()
{
Q_D(QGLContext);
if (!d->valid)
return;
d->cleanup();
doneCurrent();
#ifndef QT_MAC_USE_COCOA
if (d->cx)
aglDestroyContext((AGLContext)d->cx);
#else
QMacCocoaAutoReleasePool pool;
[static_cast<NSOpenGLContext *>(d->cx) release];
#endif
d->cx = 0;
#ifndef QT_MAC_USE_COCOA
if (d->vi)
aglDestroyPixelFormat((AGLPixelFormat)d->vi);
#else
[static_cast<NSOpenGLPixelFormat *>(d->vi) release];
#endif
d->vi = 0;
d->crWin = false;
d->sharing = false;
d->valid = false;
d->transpColor = QColor();
d->initDone = false;
QGLContextGroup::removeShare(this);
}
void QGLContext::makeCurrent()
{
Q_D(QGLContext);
if (!d->valid) {
qWarning("QGLContext::makeCurrent: Cannot make invalid context current");
return;
}
#ifndef QT_MAC_USE_COCOA
aglSetCurrentContext((AGLContext)d->cx);
if (d->update)
updatePaintDevice();
#else
[static_cast<NSOpenGLContext *>(d->cx) makeCurrentContext];
#endif
QGLContextPrivate::setCurrentContext(this);
}
#ifndef QT_MAC_USE_COCOA
/*
Returns the effective scale factor for a widget. For this value to be
different than 1, the following must be true:
- The system scale factor must be greater than 1.
- The widget window must have WA_MacFrameworkScaled set.
*/
float qt_mac_get_scale_factor(QWidget *widget)
{
if (!widget | !widget->window())
return 1;
if (widget->window()->testAttribute(Qt::WA_MacFrameworkScaled) == false)
return 1;
float systemScale = QSysInfo::MacintoshVersion >= QSysInfo::MV_10_4 ? HIGetScaleFactor() : 1;
if (systemScale == float(1))
return 1;
return systemScale;
}
#endif
/*! \internal
*/
void QGLContext::updatePaintDevice()
{
Q_D(QGLContext);
#ifndef QT_MAC_USE_COCOA
d->update = false;
if (d->paintDevice->devType() == QInternal::Widget) {
//get control information
QWidget *w = (QWidget *)d->paintDevice;
HIViewRef hiview = (HIViewRef)w->winId();
WindowRef window = HIViewGetWindow(hiview);
#ifdef DEBUG_OPENGL_REGION_UPDATE
static int serial_no_gl = 0;
qDebug("[%d] %p setting on %s::%s %p/%p [%s]", ++serial_no_gl, w,
w->metaObject()->className(), w->objectName().toLatin1().constData(),
hiview, window, w->handle() ? "Inside" : "Outside");
#endif
//update drawable
if (0 && w->isWindow() && w->isFullScreen()) {
aglSetDrawable((AGLContext)d->cx, 0);
aglSetFullScreen((AGLContext)d->cx, w->width(), w->height(), 0, QApplication::desktop()->screenNumber(w));
w->hide();
} else {
AGLDrawable old_draw = aglGetDrawable((AGLContext)d->cx), new_draw = GetWindowPort(window);
if (old_draw != new_draw)
aglSetDrawable((AGLContext)d->cx, new_draw);
}
float scale = qt_mac_get_scale_factor(w);
if (!w->isWindow()) {
QRegion clp = qt_mac_get_widget_rgn(w); //get drawable area
#ifdef DEBUG_OPENGL_REGION_UPDATE
if (clp.isEmpty()) {
qDebug(" Empty area!");
} else {
QVector<QRect> rs = clp.rects();
for(int i = 0; i < rs.count(); i++)
qDebug(" %d %d %d %d", rs[i].x(), rs[i].y(), rs[i].width(), rs[i].height());
}
#endif
//update the clip
if (!aglIsEnabled((AGLContext)d->cx, AGL_BUFFER_RECT))
aglEnable((AGLContext)d->cx, AGL_BUFFER_RECT);
if (clp.isEmpty()) {
GLint offs[4] = { 0, 0, 0, 0 };
aglSetInteger((AGLContext)d->cx, AGL_BUFFER_RECT, offs);
if (aglIsEnabled((AGLContext)d->cx, AGL_CLIP_REGION))
aglDisable((AGLContext)d->cx, AGL_CLIP_REGION);
} else {
HIPoint origin = { 0., 0. };
HIViewConvertPoint(&origin, HIViewRef(w->winId()), 0);
const GLint offs[4] = { qRound(origin.x),
w->window()->frameGeometry().height() * scale
- (qRound(origin.y) + w->height() * scale),
w->width() * scale, w->height() * scale};
RgnHandle region = clp.handle(true);
if (scale != float(1)) {
// Sacle the clip region by the scale factor
Rect regionBounds;
GetRegionBounds(region, &regionBounds);
Rect regionBoundsDest = regionBounds;
regionBoundsDest.bottom *= scale;
regionBoundsDest.right *= scale;
MapRgn(region, &regionBounds, &regionBoundsDest);
}
aglSetInteger((AGLContext)d->cx, AGL_BUFFER_RECT, offs);
aglSetInteger((AGLContext)d->cx, AGL_CLIP_REGION, (const GLint *)region);
if (!aglIsEnabled((AGLContext)d->cx, AGL_CLIP_REGION))
aglEnable((AGLContext)d->cx, AGL_CLIP_REGION);
}
} else {
// Set the buffer rect for top-level gl contexts when scaled.
if (scale != float(1)) {
aglEnable((AGLContext)d->cx, AGL_BUFFER_RECT);
const GLint offs[4] = { 0, 0, w->width() * scale , w->height() * scale};
aglSetInteger((AGLContext)d->cx, AGL_BUFFER_RECT, offs);
}
}
} else if (d->paintDevice->devType() == QInternal::Pixmap) {
QPixmap *pm = reinterpret_cast<QPixmap *>(d->paintDevice);
unsigned long qdformat = k32ARGBPixelFormat;
if (QSysInfo::ByteOrder == QSysInfo::LittleEndian)
qdformat = k32BGRAPixelFormat;
Rect rect;
SetRect(&rect, 0, 0, pm->width(), pm->height());
GWorldPtr gworld;
NewGWorldFromPtr(&gworld, qdformat, &rect, 0, 0, 0,
reinterpret_cast<char *>(qt_mac_pixmap_get_base(pm)),
qt_mac_pixmap_get_bytes_per_line(pm));
PixMapHandle pixmapHandle = GetGWorldPixMap(gworld);
aglSetOffScreen(reinterpret_cast<AGLContext>(d->cx), pm->width(), pm->height(),
GetPixRowBytes(pixmapHandle), GetPixBaseAddr(pixmapHandle));
} else {
qWarning("QGLContext::updatePaintDevice(): Not sure how to render OpenGL on this device!");
}
aglUpdateContext((AGLContext)d->cx);
#else
QMacCocoaAutoReleasePool pool;
if (d->paintDevice->devType() == QInternal::Widget) {
//get control information
QWidget *w = (QWidget *)d->paintDevice;
NSView *view = qt_mac_nativeview_for(w);
// Trying to attach the GL context to the NSView will fail with
// "invalid drawable" if done too soon, but we have to make sure
// the connection is made before the first paint event. Using
// the NSView do to this check fails as the NSView is visible
// before it's safe to connect, and using the NSWindow fails as
// the NSWindow will become visible after the first paint event.
// This leaves us with the QWidget, who's visible state seems
// to match the point in time when it's safe to connect.
if (!w || !w->isVisible())
return; // Not safe to attach GL context to view yet
if ([static_cast<NSOpenGLContext *>(d->cx) view] != view && ![view isHidden])
[static_cast<NSOpenGLContext *>(d->cx) setView:view];
} else if (d->paintDevice->devType() == QInternal::Pixmap) {
const QPixmap *pm = static_cast<const QPixmap *>(d->paintDevice);
[static_cast<NSOpenGLContext *>(d->cx) setOffScreen:qt_mac_pixmap_get_base(pm)
width:pm->width()
height:pm->height()
rowbytes:qt_mac_pixmap_get_bytes_per_line(pm)];
} else {
qWarning("QGLContext::updatePaintDevice: Not sure how to render OpenGL on this device");
}
[static_cast<NSOpenGLContext *>(d->cx) update];
#endif
}
void QGLContext::doneCurrent()
{
if (
#ifndef QT_MAC_USE_COCOA
aglGetCurrentContext() != (AGLContext) d_func()->cx
#else
[NSOpenGLContext currentContext] != d_func()->cx
#endif
)
return;
QGLContextPrivate::setCurrentContext(0);
#ifndef QT_MAC_USE_COCOA
aglSetCurrentContext(0);
#else
[NSOpenGLContext clearCurrentContext];
#endif
}
void QGLContext::swapBuffers() const
{
Q_D(const QGLContext);
if (!d->valid)
return;
#ifndef QT_MAC_USE_COCOA
aglSwapBuffers((AGLContext)d->cx);
#else
[static_cast<NSOpenGLContext *>(d->cx) flushBuffer];
#endif
}
QColor QGLContext::overlayTransparentColor() const
{
return QColor(0, 0, 0); // Invalid color
}
#ifndef QT_MAC_USE_COCOA
static QColor cmap[256];
static bool cmap_init = false;
#endif
uint QGLContext::colorIndex(const QColor &c) const
{
#ifndef QT_MAC_USE_COCOA
int ret = -1;
if(!cmap_init) {
cmap_init = true;
for(int i = 0; i < 256; i++)
cmap[i] = QColor();
} else {
for(int i = 0; i < 256; i++) {
if(cmap[i].isValid() && cmap[i] == c) {
ret = i;
break;
}
}
}
if(ret == -1) {
for(ret = 0; ret < 256; ret++)
if(!cmap[ret].isValid())
break;
if(ret == 256) {
ret = -1;
qWarning("QGLContext::colorIndex(): Internal error!");
} else {
cmap[ret] = c;
GLint vals[4];
vals[0] = ret;
vals[1] = c.red();
vals[2] = c.green();
vals[3] = c.blue();
aglSetInteger((AGLContext)d_func()->cx, AGL_COLORMAP_ENTRY, vals);
}
}
return (uint)(ret == -1 ? 0 : ret);
#else
Q_UNUSED(c);
return 0;
#endif
}
void QGLContext::generateFontDisplayLists(const QFont & /* fnt */, int /* listBase */)
{
}
static CFBundleRef qt_getOpenGLBundle()
{
CFBundleRef bundle = 0;
CFStringRef urlString = QCFString::toCFStringRef(QLatin1String("/System/Library/Frameworks/OpenGL.framework"));
QCFType<CFURLRef> url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault,
urlString, kCFURLPOSIXPathStyle, false);
if (url)
bundle = CFBundleCreate(kCFAllocatorDefault, url);
CFRelease(urlString);
return bundle;
}
void *QGLContext::getProcAddress(const QString &proc) const
{
CFStringRef procName = QCFString(proc).toCFStringRef(proc);
void *result = CFBundleGetFunctionPointerForName(QCFType<CFBundleRef>(qt_getOpenGLBundle()),
procName);
CFRelease(procName);
return result;
}
#ifndef QT_MAC_USE_COCOA
/*****************************************************************************
QGLWidget AGL-specific code
*****************************************************************************/
/****************************************************************************
Hacks to glue AGL to an HIView
***************************************************************************/
QRegion qt_mac_get_widget_rgn(const QWidget *widget)
{
if(!widget->isVisible() || widget->isMinimized())
return QRegion();
const QRect wrect = QRect(qt_mac_posInWindow(widget), widget->size());
if(!wrect.isValid())
return QRegion();
RgnHandle macr = qt_mac_get_rgn();
GetControlRegion((HIViewRef)widget->winId(), kControlStructureMetaPart, macr);
OffsetRgn(macr, wrect.x(), wrect.y());
QRegion ret = qt_mac_convert_mac_region(macr);
QPoint clip_pos = wrect.topLeft();
for(const QWidget *last_clip = 0, *clip = widget; clip; last_clip = clip, clip = clip->parentWidget()) {
if(clip != widget) {
GetControlRegion((HIViewRef)clip->winId(), kControlStructureMetaPart, macr);
OffsetRgn(macr, clip_pos.x(), clip_pos.y());
ret &= qt_mac_convert_mac_region(macr);
}
const QObjectList &children = clip->children();
for(int i = children.size()-1; i >= 0; --i) {
if(QWidget *child = qobject_cast<QWidget*>(children.at(i))) {
if(child == last_clip)
break;
// This check may seem weird, but when we are using a unified toolbar
// The widget is actually being owned by that toolbar and not by Qt.
// This means that the geometry it reports will be wrong
// and will accidentally cause problems when calculating the region
// So, it is better to skip these widgets since they aren't the hierarchy
// anyway.
if (HIViewGetSuperview(HIViewRef(child->winId())) != HIViewRef(clip->winId()))
continue;
if(child->isVisible() && !child->isMinimized() && !child->isTopLevel()) {
const QRect childRect = QRect(clip_pos+child->pos(), child->size());
if(childRect.isValid() && wrect.intersects(childRect)) {
GetControlRegion((HIViewRef)child->winId(), kControlStructureMetaPart, macr);
OffsetRgn(macr, childRect.x(), childRect.y());
ret -= qt_mac_convert_mac_region(macr);
}
}
}
}
if(clip->isWindow())
break;
clip_pos -= clip->pos();
}
qt_mac_dispose_rgn(macr);
return ret;
}
#endif
void QGLWidget::setMouseTracking(bool enable)
{
QWidget::setMouseTracking(enable);
}
void QGLWidget::resizeEvent(QResizeEvent *)
{
Q_D(QGLWidget);
if (!isValid())
return;
#ifndef QT_MAC_USE_COCOA
if (!isWindow())
d->glcx->d_func()->update = true;
#endif
makeCurrent();
if (!d->glcx->initialized())
glInit();
#ifdef QT_MAC_USE_COCOA
d->glcx->updatePaintDevice();
#endif
#ifndef QT_MAC_USE_COCOA
float scale = qt_mac_get_scale_factor(this);
resizeGL(width() * scale, height() * scale);
#else
resizeGL(width(), height());
#endif
}
const QGLContext* QGLWidget::overlayContext() const
{
return 0;
}
void QGLWidget::makeOverlayCurrent()
{
}
void QGLWidget::updateOverlayGL()
{
}
void QGLWidget::setContext(QGLContext *context, const QGLContext* shareContext, bool deleteOldContext)
{
Q_D(QGLWidget);
if (context == 0) {
qWarning("QGLWidget::setContext: Cannot set null context");
return;
}
if (d->glcx)
d->glcx->doneCurrent();
QGLContext* oldcx = d->glcx;
d->glcx = context;
if (!d->glcx->isValid())
d->glcx->create(shareContext ? shareContext : oldcx);
if (deleteOldContext && oldcx)
delete oldcx;
}
void QGLWidgetPrivate::init(QGLContext *context, const QGLWidget *shareWidget)
{
Q_Q(QGLWidget);
initContext(context, shareWidget);
QWidget *current = q;
while (current) {
qt_widget_private(current)->glWidgets.append(QWidgetPrivate::GlWidgetInfo(q));
if (current->isWindow())
break;
current = current->parentWidget();
}
}
bool QGLWidgetPrivate::renderCxPm(QPixmap*)
{
return false;
}
void QGLWidgetPrivate::cleanupColormaps()
{
}
const QGLColormap & QGLWidget::colormap() const
{
return d_func()->cmap;
}
void QGLWidget::setColormap(const QGLColormap &)
{
}
void QGLWidgetPrivate::updatePaintDevice()
{
Q_Q(QGLWidget);
glcx->updatePaintDevice();
q->update();
}
#endif
QT_END_NAMESPACE
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