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Diffstat (limited to 'src/opengl/qgl_mac.mm')
| -rw-r--r-- | src/opengl/qgl_mac.mm | 996 |
1 files changed, 996 insertions, 0 deletions
diff --git a/src/opengl/qgl_mac.mm b/src/opengl/qgl_mac.mm new file mode 100644 index 0000000000..370861073c --- /dev/null +++ b/src/opengl/qgl_mac.mm @@ -0,0 +1,996 @@ +/**************************************************************************** +** +** 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, ®ionBounds); + Rect regionBoundsDest = regionBounds; + regionBoundsDest.bottom *= scale; + regionBoundsDest.right *= scale; + MapRgn(region, ®ionBounds, ®ionBoundsDest); + } + + 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 |