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Diffstat (limited to 'src/opengl/qgl_wince.cpp')
| -rw-r--r-- | src/opengl/qgl_wince.cpp | 739 |
1 files changed, 739 insertions, 0 deletions
diff --git a/src/opengl/qgl_wince.cpp b/src/opengl/qgl_wince.cpp new file mode 100644 index 0000000000..cb51598870 --- /dev/null +++ b/src/opengl/qgl_wince.cpp @@ -0,0 +1,739 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +#include <qgl.h> +#include <qlist.h> +#include <qmap.h> +#include <qpixmap.h> +#include <qevent.h> +#include <private/qgl_p.h> +#include <qcolormap.h> +#include <qvarlengtharray.h> +#include <qdebug.h> +#include <qapplication.h> +#include <qdesktopwidget> + +#include <windows.h> + +#include "qegl_p.h" +#include "qgl_egl_p.h" +#include "qgl_cl_p.h" + + +QT_BEGIN_NAMESPACE + + + +class QGLCmapPrivate +{ +public: + QGLCmapPrivate() : count(1) { } + void ref() { ++count; } + bool deref() { return !--count; } + uint count; + + enum AllocState{ UnAllocated = 0, Allocated = 0x01, Reserved = 0x02 }; + + int maxSize; + QVector<uint> colorArray; + QVector<quint8> allocArray; + QVector<quint8> contextArray; + QMap<uint,int> colorMap; +}; + +/***************************************************************************** + QColorMap class - temporarily here, until it is ready for prime time + *****************************************************************************/ + +/**************************************************************************** +** +** Definition of QColorMap class +** +****************************************************************************/ + +#ifndef QGLCMAP_H +#define QGLCMAP_H + +#include <qcolor.h> + + + + +/***************************************************************************** + QGLFormat Win32/WGL-specific code + *****************************************************************************/ + +void qt_egl_add_platform_config(QEglProperties& props, QPaintDevice *device) +{ + int devType = device->devType(); + if (devType == QInternal::Image) + props.setPixelFormat(static_cast<QImage *>(device)->format()); + else + props.setPixelFormat(QImage::Format_RGB16); +} + + +bool QGLFormat::hasOpenGL() +{ + return true; +} + +static bool opengl32dll = false; + +bool QGLFormat::hasOpenGLOverlays() +{ + return false; // ### +} + + +bool QGLContext::chooseContext(const QGLContext* shareContext) +{ + Q_D(QGLContext); + + // Validate the device. + if (!device()) + return false; + int devType = device()->devType(); + if (devType != QInternal::Pixmap && devType != QInternal::Image && devType != QInternal::Widget) { + qWarning("QGLContext::chooseContext(): Cannot create QGLContext's for paint device type %d", devType); + return false; + } + + // Get the display and initialize it. + d->eglContext = new QEglContext(); + d->eglContext->setApi(QEglContext::OpenGL); + if (!d->eglContext->openDisplay(device())) { + delete d->eglContext; + d->eglContext = 0; + return false; + } + + // Construct the configuration we need for this surface. + QEglProperties configProps; + qt_egl_add_platform_config(configProps, device()); + qt_egl_set_format(configProps, devType, d->glFormat); + configProps.setRenderableType(QEglContext::OpenGL); + + // Search for a matching configuration, reducing the complexity + // each time until we get something that matches. + if (!d->eglContext->chooseConfig(configProps)) { + delete d->eglContext; + d->eglContext = 0; + return false; + } + + // Inform the higher layers about the actual format properties. + qt_egl_update_format(*(d->eglContext), d->glFormat); + + // Create a new context for the configuration. + if (!d->eglContext->createContext + (shareContext ? shareContext->d_func()->eglContext : 0)) { + delete d->eglContext; + d->eglContext = 0; + return false; + } + +#if defined(EGL_VERSION_1_1) + if (d->glFormat.swapInterval() != -1 && devType == QInternal::Widget) + eglSwapInterval(d->eglContext->display(), d->glFormat.swapInterval()); +#endif + + // Create the EGL surface to draw into. + if (!d->eglContext->createSurface(device())) { + delete d->eglContext; + d->eglContext = 0; + return false; + } + + return true; + +} + + + +static bool qLogEq(bool a, bool b) +{ + return (((!a) && (!b)) || (a && b)); +} + +int QGLContext::choosePixelFormat(void* , HDC ) +{ + + return 0; +} + +class QGLCmapPrivate; + +class /*Q_EXPORT*/ QGLCmap +{ +public: + enum Flags { Reserved = 0x01 }; + + QGLCmap(int maxSize = 256); + QGLCmap(const QGLCmap& map); + ~QGLCmap(); + + QGLCmap& operator=(const QGLCmap& map); + + // isEmpty and/or isNull ? + int size() const; + int maxSize() const; + + void resize(int newSize); + + int find(QRgb color) const; + int findNearest(QRgb color) const; + int allocate(QRgb color, uint flags = 0, quint8 context = 0); + + void setEntry(int idx, QRgb color, uint flags = 0, quint8 context = 0); + + const QRgb* colors() const; + +private: + void detach(); + QGLCmapPrivate* d; +}; + +#endif + + +QGLCmap::QGLCmap(int maxSize) // add a bool prealloc? +{ + d = new QGLCmapPrivate; + d->maxSize = maxSize; +} + +QGLCmap::QGLCmap(const QGLCmap& map) +{ + d = map.d; + d->ref(); +} + +QGLCmap::~QGLCmap() +{ + if (d && d->deref()) + delete d; + d = 0; +} + +QGLCmap& QGLCmap::operator=(const QGLCmap& map) +{ + map.d->ref(); + if (d->deref()) + delete d; + d = map.d; + return *this; +} + +int QGLCmap::size() const +{ + return d->colorArray.size(); +} + +int QGLCmap::maxSize() const +{ + return d->maxSize; +} + +void QGLCmap::detach() +{ + if (d->count != 1) { + d->deref(); + QGLCmapPrivate* newd = new QGLCmapPrivate; + newd->maxSize = d->maxSize; + newd->colorArray = d->colorArray; + newd->allocArray = d->allocArray; + newd->contextArray = d->contextArray; + newd->colorArray.detach(); + newd->allocArray.detach(); + newd->contextArray.detach(); + newd->colorMap = d->colorMap; + d = newd; + } +} + + +void QGLCmap::resize(int newSize) +{ + if (newSize < 0 || newSize > d->maxSize) { + qWarning("QGLCmap::resize(): size out of range"); + return; + } + int oldSize = size(); + detach(); + //if shrinking; remove the lost elems from colorMap + d->colorArray.resize(newSize); + d->allocArray.resize(newSize); + d->contextArray.resize(newSize); + if (newSize > oldSize) { + memset(d->allocArray.data() + oldSize, 0, newSize - oldSize); + memset(d->contextArray.data() + oldSize, 0, newSize - oldSize); + } +} + + +int QGLCmap::find(QRgb color) const +{ + QMap<uint,int>::ConstIterator it = d->colorMap.find(color); + if (it != d->colorMap.end()) + return *it; + return -1; +} + + +int QGLCmap::findNearest(QRgb color) const +{ + int idx = find(color); + if (idx >= 0) + return idx; + int mapSize = size(); + int mindist = 200000; + int r = qRed(color); + int g = qGreen(color); + int b = qBlue(color); + int rx, gx, bx, dist; + for (int i=0; i < mapSize; i++) { + if (!(d->allocArray[i] & QGLCmapPrivate::Allocated)) + continue; + QRgb ci = d->colorArray[i]; + rx = r - qRed(ci); + gx = g - qGreen(ci); + bx = b - qBlue(ci); + dist = rx*rx + gx*gx + bx*bx; // calculate distance + if (dist < mindist) { // minimal? + mindist = dist; + idx = i; + } + } + return idx; +} + + +// Does not always allocate; returns existing c idx if found + +int QGLCmap::allocate(QRgb color, uint flags, quint8 context) +{ + int idx = find(color); + if (idx >= 0) + return idx; + + int mapSize = d->colorArray.size(); + int newIdx = d->allocArray.indexOf(QGLCmapPrivate::UnAllocated); + + if (newIdx < 0) { // Must allocate more room + if (mapSize < d->maxSize) { + newIdx = mapSize; + mapSize++; + resize(mapSize); + } + else { + //# add a bool param that says what to do in case no more room - + // fail (-1) or return nearest? + return -1; + } + } + + d->colorArray[newIdx] = color; + if (flags & QGLCmap::Reserved) { + d->allocArray[newIdx] = QGLCmapPrivate::Reserved; + } + else { + d->allocArray[newIdx] = QGLCmapPrivate::Allocated; + d->colorMap.insert(color, newIdx); + } + d->contextArray[newIdx] = context; + return newIdx; +} + + +void QGLCmap::setEntry(int idx, QRgb color, uint flags, quint8 context) +{ + if (idx < 0 || idx >= d->maxSize) { + qWarning("QGLCmap::set(): Index out of range"); + return; + } + detach(); + int mapSize = size(); + if (idx >= mapSize) { + mapSize = idx + 1; + resize(mapSize); + } + d->colorArray[idx] = color; + if (flags & QGLCmap::Reserved) { + d->allocArray[idx] = QGLCmapPrivate::Reserved; + } + else { + d->allocArray[idx] = QGLCmapPrivate::Allocated; + d->colorMap.insert(color, idx); + } + d->contextArray[idx] = context; +} + + +const QRgb* QGLCmap::colors() const +{ + return d->colorArray.data(); +} + + +void QGLContext::reset() +{ + Q_D(QGLContext); + if (!d->valid) + return; + d->cleanup(); + doneCurrent(); + if (d->eglContext) { + delete d->eglContext; + d->eglContext = 0; + } + d->crWin = false; + d->sharing = false; + d->valid = false; + d->transpColor = QColor(); + d->initDone = false; + qgl_share_reg()->removeShare(this); +} + + +// +// NOTE: In a multi-threaded environment, each thread has a current +// context. If we want to make this code thread-safe, we probably +// have to use TLS (thread local storage) for keeping current contexts. +// + +void QGLContext::makeCurrent() +{ + + Q_D(QGLContext); + if(!d->valid || !d->eglContext) { + qWarning("QGLContext::makeCurrent(): Cannot make invalid context current"); + return; + } + + if (d->eglContext->makeCurrent()) { + if (!qgl_context_storage.hasLocalData() && QThread::currentThread()) + qgl_context_storage.setLocalData(new QGLThreadContext); + if (qgl_context_storage.hasLocalData()) + qgl_context_storage.localData()->context = this; + currentCtx = this; + } +} + + +void QGLContext::doneCurrent() +{ + + Q_D(QGLContext); + if (d->eglContext) + d->eglContext->doneCurrent(); + + if (qgl_context_storage.hasLocalData()) + qgl_context_storage.localData()->context = 0; + currentCtx = 0; +} + +void QGLContext::swapBuffers() const +{ + Q_D(const QGLContext); + if(!d->valid || !d->eglContext) + return; + + d->eglContext->swapBuffers(); +} + + +QColor QGLContext::overlayTransparentColor() const +{ + return d_func()->transpColor; +} + + +void QGLContext::generateFontDisplayLists(const QFont & fnt, int listBase) +{ + Q_UNUSED(fnt); + Q_UNUSED(listBase); +} + +void *QGLContext::getProcAddress(const QString &proc) const +{ + return (void*)eglGetProcAddress(reinterpret_cast<const char *>(proc.toLatin1().data())); +} + +/***************************************************************************** + QGLWidget Win32/WGL-specific code + *****************************************************************************/ + +void QGLWidgetPrivate::init(QGLContext *ctx, const QGLWidget* shareWidget) +{ + Q_Q(QGLWidget); + olcx = 0; + initContext(ctx, shareWidget); + + if (q->isValid() && q->context()->format().hasOverlay()) { + olcx = new QGLContext(QGLFormat::defaultOverlayFormat(), q); + if (!olcx->create(shareWidget ? shareWidget->overlayContext() : 0)) { + delete olcx; + olcx = 0; + glcx->d_func()->glFormat.setOverlay(false); + } + } else { + olcx = 0; + } +} + +/*\internal + Store color values in the given colormap. +*/ +static void qStoreColors(HPALETTE cmap, const QGLColormap & cols) +{ + QRgb color; + PALETTEENTRY pe; + + for (int i = 0; i < cols.size(); i++) { + color = cols.entryRgb(i); + pe.peRed = qRed(color); + pe.peGreen = qGreen(color); + pe.peBlue = qBlue(color); + pe.peFlags = 0; + + SetPaletteEntries(cmap, i, 1, &pe); + } +} + +void QGLWidgetPrivate::updateColormap() +{ + Q_Q(QGLWidget); + if (!cmap.handle()) + return; + HDC hdc = GetDC(q->winId()); + SelectPalette(hdc, (HPALETTE) cmap.handle(), TRUE); + qStoreColors((HPALETTE) cmap.handle(), cmap); + RealizePalette(hdc); + ReleaseDC(q->winId(), hdc); +} + +/*! + \reimp +\*/ +bool QGLWidget::event(QEvent *e) +{ + Q_D(QGLWidget); + if (e->type() == QEvent::ParentChange) { + setContext(new QGLContext(d->glcx->requestedFormat(), this)); + // the overlay needs to be recreated as well + delete d->olcx; + if (isValid() && context()->format().hasOverlay()) { + d->olcx = new QGLContext(QGLFormat::defaultOverlayFormat(), this); + if (!d->olcx->create(isSharing() ? d->glcx : 0)) { + delete d->olcx; + d->olcx = 0; + d->glcx->d_func()->glFormat.setOverlay(false); + } + } else { + d->olcx = 0; + } + } else if (e->type() == QEvent::Show && !format().rgba()) { + d->updateColormap(); + } + + return QWidget::event(e); +} + + +void QGLWidget::setMouseTracking(bool enable) +{ + QWidget::setMouseTracking(enable); +} + + +void QGLWidget::resizeEvent(QResizeEvent *) +{ + Q_D(QGLWidget); + if (!isValid()) + return; + makeCurrent(); + if (!d->glcx->initialized()) + glInit(); + resizeGL(width(), height()); + if (d->olcx) { + makeOverlayCurrent(); + resizeOverlayGL(width(), height()); + } +} + + +const QGLContext* QGLWidget::overlayContext() const +{ + return d_func()->olcx; +} + + +void QGLWidget::makeOverlayCurrent() +{ + Q_D(QGLWidget); + if (d->olcx) { + d->olcx->makeCurrent(); + if (!d->olcx->initialized()) { + initializeOverlayGL(); + d->olcx->setInitialized(true); + } + } +} + + +void QGLWidget::updateOverlayGL() +{ + Q_D(QGLWidget); + if (d->olcx) { + makeOverlayCurrent(); + paintOverlayGL(); + if (d->olcx->format().doubleBuffer()) { + if (d->autoSwap) + d->olcx->swapBuffers(); + } + else { + glFlush(); + } + } +} + +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 (!context->deviceIsPixmap() && context->device() != this) { + qWarning("QGLWidget::setContext: Context must refer to this widget"); + return; + } + + if (d->glcx) + d->glcx->doneCurrent(); + QGLContext* oldcx = d->glcx; + d->glcx = context; + + bool doShow = false; + if (oldcx && oldcx->d_func()->win == winId() && !d->glcx->deviceIsPixmap()) { + // We already have a context and must therefore create a new + // window since Windows does not permit setting a new OpenGL + // context for a window that already has one set. + doShow = isVisible(); + QWidget *pW = static_cast<QWidget *>(parent()); + QPoint pos = geometry().topLeft(); + setParent(pW, windowFlags()); + move(pos); + } + + if (!d->glcx->isValid()) { + d->glcx->create(shareContext ? shareContext : oldcx); + // the above is a trick to keep disp lists etc when a + // QGLWidget has been reparented, so remove the sharing + // flag if we don't actually have a sharing context. + if (!shareContext) + d->glcx->d_ptr->sharing = false; + } + + if (deleteOldContext) + delete oldcx; + + if (doShow) + show(); +} + + +bool QGLWidgetPrivate::renderCxPm(QPixmap*) +{ + return false; +} + +void QGLWidgetPrivate::cleanupColormaps() +{ + Q_Q(QGLWidget); + if (cmap.handle()) { + HDC hdc = GetDC(q->winId()); + SelectPalette(hdc, (HPALETTE) GetStockObject(DEFAULT_PALETTE), FALSE); + DeleteObject((HPALETTE) cmap.handle()); + ReleaseDC(q->winId(), hdc); + cmap.setHandle(0); + } + return; +} + +const QGLColormap & QGLWidget::colormap() const +{ + return d_func()->cmap; +} + +void QGLWidget::setColormap(const QGLColormap & c) +{ + Q_D(QGLWidget); + d->cmap = c; + + if (d->cmap.handle()) { // already have an allocated cmap + d->updateColormap(); + } else { + LOGPALETTE *lpal = (LOGPALETTE *) malloc(sizeof(LOGPALETTE) + +c.size()*sizeof(PALETTEENTRY)); + lpal->palVersion = 0x300; + lpal->palNumEntries = c.size(); + d->cmap.setHandle(CreatePalette(lpal)); + free(lpal); + d->updateColormap(); + } +} + +void QGLExtensions::init() +{ + static bool init_done = false; + + if (init_done) + return; + init_done = true; + init_extensions(); +} + +QT_END_NAMESPACE |