From 2355774b061d9e7213634ddec3c50280c4b10b70 Mon Sep 17 00:00:00 2001 From: Jani Hautakangas Date: Tue, 8 Mar 2011 00:26:05 +0200 Subject: Initial implementation of GLES2.0 resource pooling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Keep the implementation in separate qpixmapdata_poolgl.cpp file until the pooling has been verified and confirmed to work ok. Task-number: QTBUG-15253 QTBUG-17850 Reviewed-by: Samuel Rødal --- src/gui/kernel/qwidget.cpp | 4 +- .../gl2paintengineex/qpaintengineex_opengl2.cpp | 28 +- src/opengl/opengl.pro | 9 +- src/opengl/qgl.cpp | 19 +- src/opengl/qgl.h | 1 + src/opengl/qgl_symbian.cpp | 1 + src/opengl/qgltexturepool.cpp | 241 ++++++ src/opengl/qgltexturepool_p.h | 147 ++++ src/opengl/qgraphicssystem_gl.cpp | 11 +- src/opengl/qgraphicssystem_gl_p.h | 4 + src/opengl/qpixmapdata_gl_p.h | 42 +- src/opengl/qpixmapdata_poolgl.cpp | 902 +++++++++++++++++++++ src/opengl/qwindowsurface_gl.cpp | 79 +- src/s60installs/bwins/QtOpenGLu.def | 7 + src/s60installs/eabi/QtOpenGLu.def | 6 + 15 files changed, 1482 insertions(+), 19 deletions(-) create mode 100644 src/opengl/qgltexturepool.cpp create mode 100644 src/opengl/qgltexturepool_p.h create mode 100644 src/opengl/qpixmapdata_poolgl.cpp diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp index 1786e65..e8d9efd 100644 --- a/src/gui/kernel/qwidget.cpp +++ b/src/gui/kernel/qwidget.cpp @@ -1326,8 +1326,8 @@ void QWidgetPrivate::init(QWidget *parentWidget, Qt::WindowFlags f) //give potential windows a bigger "pre-initial" size; create_sys() will give them a new size later #ifdef Q_OS_SYMBIAN if (isGLWidget) { - // Don't waste GPU mem for unnecessary large egl surface - data.crect = QRect(0,0,2,2); + // Don't waste GPU mem for unnecessary large egl surface until resized by application + data.crect = QRect(0,0,1,1); } else { data.crect = parentWidget ? QRect(0,0,100,30) : QRect(0,0,360,640); } diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp index cda31e5..c8786fb 100644 --- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp +++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp @@ -1335,11 +1335,14 @@ void QGL2PaintEngineEx::drawPixmap(const QRectF& dest, const QPixmap & pixmap, c ensureActive(); d->transferMode(ImageDrawingMode); + QGLContext::BindOptions bindOptions = QGLContext::InternalBindOption|QGLContext::CanFlipNativePixmapBindOption; +#ifdef QGL_USE_TEXTURE_POOL + bindOptions |= QGLContext::TemporarilyCachedBindOption; +#endif + glActiveTexture(GL_TEXTURE0 + QT_IMAGE_TEXTURE_UNIT); QGLTexture *texture = - ctx->d_func()->bindTexture(pixmap, GL_TEXTURE_2D, GL_RGBA, - QGLContext::InternalBindOption - | QGLContext::CanFlipNativePixmapBindOption); + ctx->d_func()->bindTexture(pixmap, GL_TEXTURE_2D, GL_RGBA, bindOptions); GLfloat top = texture->options & QGLContext::InvertedYBindOption ? (pixmap.height() - src.top()) : src.top(); GLfloat bottom = texture->options & QGLContext::InvertedYBindOption ? (pixmap.height() - src.bottom()) : src.bottom(); @@ -1351,6 +1354,12 @@ void QGL2PaintEngineEx::drawPixmap(const QRectF& dest, const QPixmap & pixmap, c d->updateTextureFilter(GL_TEXTURE_2D, GL_CLAMP_TO_EDGE, state()->renderHints & QPainter::SmoothPixmapTransform, texture->id); d->drawTexture(dest, srcRect, pixmap.size(), isOpaque, isBitmap); + + if (texture->options&QGLContext::TemporarilyCachedBindOption) { + // pixmap was temporarily cached as a QImage texture by pooling system + // and should be destroyed immediately + QGLTextureCache::instance()->remove(ctx, texture->id); + } } void QGL2PaintEngineEx::drawImage(const QRectF& dest, const QImage& image, const QRectF& src, @@ -1375,12 +1384,23 @@ void QGL2PaintEngineEx::drawImage(const QRectF& dest, const QImage& image, const glActiveTexture(GL_TEXTURE0 + QT_IMAGE_TEXTURE_UNIT); - QGLTexture *texture = ctx->d_func()->bindTexture(image, GL_TEXTURE_2D, GL_RGBA, QGLContext::InternalBindOption); + QGLContext::BindOptions bindOptions = QGLContext::InternalBindOption; +#ifdef QGL_USE_TEXTURE_POOL + bindOptions |= QGLContext::TemporarilyCachedBindOption; +#endif + + QGLTexture *texture = ctx->d_func()->bindTexture(image, GL_TEXTURE_2D, GL_RGBA, bindOptions); GLuint id = texture->id; d->updateTextureFilter(GL_TEXTURE_2D, GL_CLAMP_TO_EDGE, state()->renderHints & QPainter::SmoothPixmapTransform, id); d->drawTexture(dest, src, image.size(), !image.hasAlphaChannel()); + + if (texture->options&QGLContext::TemporarilyCachedBindOption) { + // image was temporarily cached by texture pooling system + // and should be destroyed immediately + QGLTextureCache::instance()->remove(ctx, texture->id); + } } void QGL2PaintEngineEx::drawStaticTextItem(QStaticTextItem *textItem) diff --git a/src/opengl/opengl.pro b/src/opengl/opengl.pro index 0e82467..6bbf99b 100644 --- a/src/opengl/opengl.pro +++ b/src/opengl/opengl.pro @@ -148,11 +148,16 @@ embedded { } symbian { + DEFINES += QGL_USE_TEXTURE_POOL + SOURCES -= qpixmapdata_gl.cpp SOURCES += qgl_symbian.cpp \ + qpixmapdata_poolgl.cpp \ qglpixelbuffer_egl.cpp \ - qgl_egl.cpp + qgl_egl.cpp \ + qgltexturepool.cpp - HEADERS += qgl_egl_p.h + HEADERS += qgl_egl_p.h \ + qgltexturepool_p.h symbian:TARGET.UID3 = 0x2002131A } diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp index 062218c..ded7aa8 100644 --- a/src/opengl/qgl.cpp +++ b/src/opengl/qgl.cpp @@ -93,6 +93,10 @@ #include "qlibrary.h" #include +#ifdef QGL_USE_TEXTURE_POOL +#include +#endif + QT_BEGIN_NAMESPACE @@ -2022,6 +2026,10 @@ struct DDSFormat { the pixmap/image that it stems from, e.g. installing destruction hooks in them. + \omitvalue TemporarilyCachedBindOption Used by paint engines on some + platforms to indicate that the pixmap or image texture is possibly + cached only temporarily and must be destroyed immediately after the use. + \omitvalue InternalBindOption */ @@ -2529,8 +2537,18 @@ QGLTexture* QGLContextPrivate::bindTexture(const QImage &image, GLenum target, G #endif const QImage &constRef = img; // to avoid detach in bits()... +#ifdef QGL_USE_TEXTURE_POOL + QGLTexturePool::instance()->createPermanentTexture(tx_id, + target, + 0, internalFormat, + img.width(), img.height(), + externalFormat, + pixel_type, + constRef.bits()); +#else glTexImage2D(target, 0, internalFormat, img.width(), img.height(), 0, externalFormat, pixel_type, constRef.bits()); +#endif #if defined(QT_OPENGL_ES_2) if (genMipmap) glGenerateMipmap(target); @@ -2569,7 +2587,6 @@ QGLTexture *QGLContextPrivate::textureCacheLookup(const qint64 key, GLenum targe return 0; } - /*! \internal */ QGLTexture *QGLContextPrivate::bindTexture(const QPixmap &pixmap, GLenum target, GLint format, QGLContext::BindOptions options) { diff --git a/src/opengl/qgl.h b/src/opengl/qgl.h index 9443c74..7d72c8a 100644 --- a/src/opengl/qgl.h +++ b/src/opengl/qgl.h @@ -329,6 +329,7 @@ public: MemoryManagedBindOption = 0x0010, // internal flag CanFlipNativePixmapBindOption = 0x0020, // internal flag + TemporarilyCachedBindOption = 0x0040, // internal flag DefaultBindOption = LinearFilteringBindOption | InvertedYBindOption diff --git a/src/opengl/qgl_symbian.cpp b/src/opengl/qgl_symbian.cpp index a9e2248..2978514 100644 --- a/src/opengl/qgl_symbian.cpp +++ b/src/opengl/qgl_symbian.cpp @@ -52,6 +52,7 @@ #include // to access QWExtra #include "qgl_egl_p.h" #include "qpixmapdata_gl_p.h" +#include "qgltexturepool_p.h" #include "qcolormap.h" #include diff --git a/src/opengl/qgltexturepool.cpp b/src/opengl/qgltexturepool.cpp new file mode 100644 index 0000000..61a88c3 --- /dev/null +++ b/src/opengl/qgltexturepool.cpp @@ -0,0 +1,241 @@ +/**************************************************************************** +** +** 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 QtOpenVG 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 "qgltexturepool_p.h" +#include "qpixmapdata_gl_p.h" + +QT_BEGIN_NAMESPACE + +Q_OPENGL_EXPORT extern QGLWidget* qt_gl_share_widget(); + +static QGLTexturePool *qt_gl_texture_pool = 0; + +class QGLTexturePoolPrivate +{ +public: + QGLTexturePoolPrivate() : lruFirst(0), lruLast(0) {} + + QGLPixmapData *lruFirst; + QGLPixmapData *lruLast; +}; + +QGLTexturePool::QGLTexturePool() + : d_ptr(new QGLTexturePoolPrivate()) +{ +} + +QGLTexturePool::~QGLTexturePool() +{ +} + +QGLTexturePool *QGLTexturePool::instance() +{ + if (!qt_gl_texture_pool) + qt_gl_texture_pool = new QGLTexturePool(); + return qt_gl_texture_pool; +} + +GLuint QGLTexturePool::createTextureForPixmap(GLenum target, + GLint level, + GLint internalformat, + GLsizei width, + GLsizei height, + GLenum format, + GLenum type, + QGLPixmapData *data) +{ + GLuint texture; + glGenTextures(1, &texture); + glBindTexture(target, texture); + do { + glTexImage2D(target, level, internalformat, width, height, 0, format, type, 0); + GLenum error = glGetError(); + if (error == GL_NO_ERROR) { + if (data) + moveToHeadOfLRU(data); + return texture; + } else if (error != GL_OUT_OF_MEMORY) { + qWarning("QGLTexturePool: cannot create temporary texture because of invalid params"); + return 0; + } + } while (reclaimSpace(internalformat, width, height, format, type, data)); + qWarning("QGLTexturePool: cannot reclaim sufficient space for a %dx%d pixmap", + width, height); + return 0; +} + +bool QGLTexturePool::createPermanentTexture(GLuint texture, + GLenum target, + GLint level, + GLint internalformat, + GLsizei width, + GLsizei height, + GLenum format, + GLenum type, + const GLvoid *data) +{ + glBindTexture(target, texture); + do { + glTexImage2D(target, level, internalformat, width, height, 0, format, type, data); + + GLenum error = glGetError(); + if (error == GL_NO_ERROR) { + return true; + } else if (error != GL_OUT_OF_MEMORY) { + qWarning("QGLTexturePool: cannot create permanent texture because of invalid params"); + return false; + } + } while (reclaimSpace(internalformat, width, height, format, type, 0)); + qWarning("QGLTexturePool: cannot reclaim sufficient space for a %dx%d pixmap", + width, height); + return 0; +} + +void QGLTexturePool::releaseTexture(QGLPixmapData *data, GLuint texture) +{ + // Very simple strategy at the moment: just destroy the texture. + if (data) + removeFromLRU(data); + + QGLShareContextScope ctx(qt_gl_share_widget()->context()); + glDeleteTextures(1, &texture); +} + +void QGLTexturePool::useTexture(QGLPixmapData *data) +{ + moveToHeadOfLRU(data); +} + +void QGLTexturePool::detachTexture(QGLPixmapData *data) +{ + removeFromLRU(data); +} + +bool QGLTexturePool::reclaimSpace(GLint internalformat, + GLsizei width, + GLsizei height, + GLenum format, + GLenum type, + QGLPixmapData *data) +{ + Q_UNUSED(internalformat); // For future use in picking the best texture to eject. + Q_UNUSED(width); + Q_UNUSED(height); + Q_UNUSED(format); + Q_UNUSED(type); + + bool succeeded = false; + bool wasInLRU = false; + if (data) { + wasInLRU = data->inLRU; + moveToHeadOfLRU(data); + } + + QGLPixmapData *lrudata = pixmapLRU(); + if (lrudata && lrudata != data) { + lrudata->reclaimTexture(); + succeeded = true; + } + + if (data && !wasInLRU) + removeFromLRU(data); + + return succeeded; +} + +void QGLTexturePool::hibernate() +{ + Q_D(QGLTexturePool); + QGLPixmapData *pd = d->lruLast; + while (pd) { + QGLPixmapData *prevLRU = pd->prevLRU; + pd->inTexturePool = false; + pd->inLRU = false; + pd->nextLRU = 0; + pd->prevLRU = 0; + pd->hibernate(); + pd = prevLRU; + } + d->lruFirst = 0; + d->lruLast = 0; +} + +void QGLTexturePool::moveToHeadOfLRU(QGLPixmapData *data) +{ + Q_D(QGLTexturePool); + if (data->inLRU) { + if (!data->prevLRU) + return; // Already at the head of the list. + removeFromLRU(data); + } + data->inLRU = true; + data->nextLRU = d->lruFirst; + data->prevLRU = 0; + if (d->lruFirst) + d->lruFirst->prevLRU = data; + else + d->lruLast = data; + d->lruFirst = data; +} + +void QGLTexturePool::removeFromLRU(QGLPixmapData *data) +{ + Q_D(QGLTexturePool); + if (!data->inLRU) + return; + if (data->nextLRU) + data->nextLRU->prevLRU = data->prevLRU; + else + d->lruLast = data->prevLRU; + if (data->prevLRU) + data->prevLRU->nextLRU = data->nextLRU; + else + d->lruFirst = data->nextLRU; + data->inLRU = false; +} + +QGLPixmapData *QGLTexturePool::pixmapLRU() +{ + Q_D(QGLTexturePool); + return d->lruLast; +} + +QT_END_NAMESPACE diff --git a/src/opengl/qgltexturepool_p.h b/src/opengl/qgltexturepool_p.h new file mode 100644 index 0000000..8b6f726 --- /dev/null +++ b/src/opengl/qgltexturepool_p.h @@ -0,0 +1,147 @@ +/**************************************************************************** +** +** 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 QtOpenVG 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. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QGLTEXTUREPOOL_P_H +#define QGLTEXTUREPOOL_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists for the convenience +// of other Qt classes. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include "qgl.h" +#include + +QT_BEGIN_NAMESPACE + +class QGLPixmapData; +class QGLTexturePoolPrivate; + +class QGLTexturePool +{ +public: + QGLTexturePool(); + virtual ~QGLTexturePool(); + + static QGLTexturePool *instance(); + + // Create a new texture with the specified parameters and associate + // it with "data". The QGLPixmapData will be notified when the + // texture needs to be reclaimed by the pool. + // + // This function will call reclaimSpace() when texture creation fails. + GLuint createTextureForPixmap(GLenum target, + GLint level, + GLint internalformat, + GLsizei width, + GLsizei height, + GLenum format, + GLenum type, + QGLPixmapData *data); + + // Create a permanent texture with the specified parameters. + // If there is insufficient space for the texture, + // then this function will call reclaimSpace() and try again. + // + // The caller is responsible for calling glDeleteTextures() + // when it no longer needs the texture, as the texture is not + // recorded in the texture pool. + bool createPermanentTexture(GLuint texture, + GLenum target, + GLint level, + GLint internalformat, + GLsizei width, + GLsizei height, + GLenum format, + GLenum type, + const GLvoid *data); + + // Release a texture that is no longer required. + void releaseTexture(QGLPixmapData *data, GLuint texture); + + // Notify the pool that a QGLPixmapData object is using + // an texture again. This allows the pool to move the texture + // within a least-recently-used list of QGLPixmapData objects. + void useTexture(QGLPixmapData *data); + + // Notify the pool that the texture associated with a + // QGLPixmapData is being detached from the pool. The caller + // will become responsible for calling glDeleteTextures(). + void detachTexture(QGLPixmapData *data); + + // Reclaim space for an image allocation with the specified parameters. + // Returns true if space was reclaimed, or false if there is no + // further space that can be reclaimed. The "data" parameter + // indicates the pixmap that is trying to obtain space which should + // not itself be reclaimed. + bool reclaimSpace(GLint internalformat, + GLsizei width, + GLsizei height, + GLenum format, + GLenum type, + QGLPixmapData *data); + + // Hibernate the image pool because the context is about to be + // destroyed. All textures left in the pool should be released. + void hibernate(); + +protected: + // Helper functions for managing the LRU list of QGLPixmapData objects. + void moveToHeadOfLRU(QGLPixmapData *data); + void removeFromLRU(QGLPixmapData *data); + QGLPixmapData *pixmapLRU(); + +private: + QScopedPointer d_ptr; + + Q_DECLARE_PRIVATE(QGLTexturePool) + Q_DISABLE_COPY(QGLTexturePool) +}; + +QT_END_NAMESPACE + +#endif diff --git a/src/opengl/qgraphicssystem_gl.cpp b/src/opengl/qgraphicssystem_gl.cpp index 3574756..0aa3c2e 100644 --- a/src/opengl/qgraphicssystem_gl.cpp +++ b/src/opengl/qgraphicssystem_gl.cpp @@ -57,6 +57,10 @@ #include #endif +#ifdef QGL_USE_TEXTURE_POOL +#include "private/qgltexturepool_p.h" +#endif + QT_BEGIN_NAMESPACE extern QGLWidget *qt_gl_getShareWidget(); @@ -100,6 +104,11 @@ QWindowSurface *QGLGraphicsSystem::createWindowSurface(QWidget *widget) const return new QGLWindowSurface(widget); } - +#ifdef QGL_USE_TEXTURE_POOL +void QGLGraphicsSystem::releaseCachedResources() +{ + QGLTexturePool::instance()->hibernate(); +} +#endif QT_END_NAMESPACE diff --git a/src/opengl/qgraphicssystem_gl_p.h b/src/opengl/qgraphicssystem_gl_p.h index 4630da1..5829dcc 100644 --- a/src/opengl/qgraphicssystem_gl_p.h +++ b/src/opengl/qgraphicssystem_gl_p.h @@ -66,6 +66,10 @@ public: QPixmapData *createPixmapData(QPixmapData::PixelType type) const; QWindowSurface *createWindowSurface(QWidget *widget) const; + +#ifdef QGL_USE_TEXTURE_POOL + void releaseCachedResources(); +#endif private: bool m_useX11GL; }; diff --git a/src/opengl/qpixmapdata_gl_p.h b/src/opengl/qpixmapdata_gl_p.h index a4066fd..55cc29d 100644 --- a/src/opengl/qpixmapdata_gl_p.h +++ b/src/opengl/qpixmapdata_gl_p.h @@ -66,6 +66,12 @@ class QGLFramebufferObject; class QGLFramebufferObjectFormat; class QGLPixmapData; +#ifdef QGL_USE_TEXTURE_POOL +void qt_gl_register_pixmap(QGLPixmapData *pd); +void qt_gl_unregister_pixmap(QGLPixmapData *pd); +void qt_gl_hibernate_pixmaps(); +#endif + class QGLFramebufferObjectPool { public: @@ -129,7 +135,24 @@ public: GLuint bind(bool copyBack = true) const; QGLTexture *texture() const; -#if defined(Q_OS_SYMBIAN) +#ifdef QGL_USE_TEXTURE_POOL + void destroyTexture(); + // Detach this image from the image pool. + void detachTextureFromPool(); + // Release the GL resources associated with this pixmap and copy + // the pixmap's contents out of the GPU back into main memory. + // The GL resource will be automatically recreated the next time + // ensureCreated() is called. Does nothing if the pixmap cannot be + // hibernated for some reason (e.g. texture is shared with another + // process via a SgImage). + void hibernate(); + // Called when the QGLTexturePool wants to reclaim this pixmap's + // texture objects to reuse storage. + void reclaimTexture(); + void forceToImage(); +#endif + +#ifdef Q_OS_SYMBIAN void* toNativeType(NativeType type); void fromNativeType(void* pixmap, NativeType type); #endif @@ -176,6 +199,23 @@ private: mutable QGLPixmapGLPaintDevice m_glDevice; +#ifdef QGL_USE_TEXTURE_POOL + QGLPixmapData *nextLRU; + QGLPixmapData *prevLRU; + mutable bool inLRU; + mutable bool failedToAlloc; + mutable bool inTexturePool; + + QGLPixmapData *next; + QGLPixmapData *prev; + + friend class QGLTexturePool; + + friend void qt_gl_register_pixmap(QGLPixmapData *pd); + friend void qt_gl_unregister_pixmap(QGLPixmapData *pd); + friend void qt_gl_hibernate_pixmaps(); +#endif + friend class QGLPixmapGLPaintDevice; friend class QMeeGoPixmapData; friend class QMeeGoLivePixmapData; diff --git a/src/opengl/qpixmapdata_poolgl.cpp b/src/opengl/qpixmapdata_poolgl.cpp new file mode 100644 index 0000000..f1220b1 --- /dev/null +++ b/src/opengl/qpixmapdata_poolgl.cpp @@ -0,0 +1,902 @@ +/**************************************************************************** +** +** 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 "qpixmap.h" +#include "qglframebufferobject.h" + +#include + +#include "qpixmapdata_gl_p.h" + +#include +#include +#include + +#include + +#include +#include +#include +#include + +#include "qgltexturepool_p.h" + +QT_BEGIN_NAMESPACE + +Q_OPENGL_EXPORT extern QGLWidget* qt_gl_share_widget(); + +/*! + \class QGLFramebufferObjectPool + \since 4.6 + + \brief The QGLFramebufferObject class provides a pool of framebuffer + objects for offscreen rendering purposes. + + When requesting an FBO of a given size and format, an FBO of the same + format and a size at least as big as the requested size will be returned. + + \internal +*/ + +static inline int areaDiff(const QSize &size, const QGLFramebufferObject *fbo) +{ + return qAbs(size.width() * size.height() - fbo->width() * fbo->height()); +} + +extern int qt_next_power_of_two(int v); + +static inline QSize maybeRoundToNextPowerOfTwo(const QSize &sz) +{ +#ifdef QT_OPENGL_ES_2 + QSize rounded(qt_next_power_of_two(sz.width()), qt_next_power_of_two(sz.height())); + if (rounded.width() * rounded.height() < 1.20 * sz.width() * sz.height()) + return rounded; +#endif + return sz; +} + + +QGLFramebufferObject *QGLFramebufferObjectPool::acquire(const QSize &requestSize, const QGLFramebufferObjectFormat &requestFormat, bool strictSize) +{ + QGLFramebufferObject *chosen = 0; + QGLFramebufferObject *candidate = 0; + for (int i = 0; !chosen && i < m_fbos.size(); ++i) { + QGLFramebufferObject *fbo = m_fbos.at(i); + + if (strictSize) { + if (fbo->size() == requestSize && fbo->format() == requestFormat) { + chosen = fbo; + break; + } else { + continue; + } + } + + if (fbo->format() == requestFormat) { + // choose the fbo with a matching format and the closest size + if (!candidate || areaDiff(requestSize, candidate) > areaDiff(requestSize, fbo)) + candidate = fbo; + } + + if (candidate) { + m_fbos.removeOne(candidate); + + const QSize fboSize = candidate->size(); + QSize sz = fboSize; + + if (sz.width() < requestSize.width()) + sz.setWidth(qMax(requestSize.width(), qRound(sz.width() * 1.5))); + if (sz.height() < requestSize.height()) + sz.setHeight(qMax(requestSize.height(), qRound(sz.height() * 1.5))); + + // wasting too much space? + if (sz.width() * sz.height() > requestSize.width() * requestSize.height() * 4) + sz = requestSize; + + if (sz != fboSize) { + delete candidate; + candidate = new QGLFramebufferObject(maybeRoundToNextPowerOfTwo(sz), requestFormat); + } + + chosen = candidate; + } + } + + if (!chosen) { + if (strictSize) + chosen = new QGLFramebufferObject(requestSize, requestFormat); + else + chosen = new QGLFramebufferObject(maybeRoundToNextPowerOfTwo(requestSize), requestFormat); + } + + if (!chosen->isValid()) { + delete chosen; + chosen = 0; + } + + return chosen; +} + +void QGLFramebufferObjectPool::release(QGLFramebufferObject *fbo) +{ + if (fbo) + m_fbos << fbo; +} + + +QPaintEngine* QGLPixmapGLPaintDevice::paintEngine() const +{ + return data->paintEngine(); +} + +void QGLPixmapGLPaintDevice::beginPaint() +{ + if (!data->isValid()) + return; + + // QGLPaintDevice::beginPaint will store the current binding and replace + // it with m_thisFBO: + m_thisFBO = data->m_renderFbo->handle(); + QGLPaintDevice::beginPaint(); + + Q_ASSERT(data->paintEngine()->type() == QPaintEngine::OpenGL2); + + // QPixmap::fill() is deferred until now, where we actually need to do the fill: + if (data->needsFill()) { + const QColor &c = data->fillColor(); + float alpha = c.alphaF(); + glDisable(GL_SCISSOR_TEST); + glClearColor(c.redF() * alpha, c.greenF() * alpha, c.blueF() * alpha, alpha); + glClear(GL_COLOR_BUFFER_BIT); + } + else if (!data->isUninitialized()) { + // If the pixmap (GL Texture) has valid content (it has been + // uploaded from an image or rendered into before), we need to + // copy it from the texture to the render FBO. + + glDisable(GL_DEPTH_TEST); + glDisable(GL_SCISSOR_TEST); + glDisable(GL_BLEND); + +#if !defined(QT_OPENGL_ES_2) + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(0, data->width(), data->height(), 0, -999999, 999999); +#endif + + glViewport(0, 0, data->width(), data->height()); + + // Pass false to bind so it doesn't copy the FBO into the texture! + context()->drawTexture(QRect(0, 0, data->width(), data->height()), data->bind(false)); + } +} + +void QGLPixmapGLPaintDevice::endPaint() +{ + if (!data->isValid()) + return; + + data->copyBackFromRenderFbo(false); + + // Base's endPaint will restore the previous FBO binding + QGLPaintDevice::endPaint(); + + qgl_fbo_pool()->release(data->m_renderFbo); + data->m_renderFbo = 0; +} + +QGLContext* QGLPixmapGLPaintDevice::context() const +{ + data->ensureCreated(); + return data->m_ctx; +} + +QSize QGLPixmapGLPaintDevice::size() const +{ + return data->size(); +} + +bool QGLPixmapGLPaintDevice::alphaRequested() const +{ + return data->m_hasAlpha; +} + +void QGLPixmapGLPaintDevice::setPixmapData(QGLPixmapData* d) +{ + data = d; +} + +static int qt_gl_pixmap_serial = 0; + +QGLPixmapData::QGLPixmapData(PixelType type) + : QPixmapData(type, OpenGLClass) + , m_renderFbo(0) + , m_engine(0) + , m_ctx(0) + , m_dirty(false) + , m_hasFillColor(false) + , m_hasAlpha(false) + , inLRU(false) + , failedToAlloc(false) + , inTexturePool(false) +{ + setSerialNumber(++qt_gl_pixmap_serial); + m_glDevice.setPixmapData(this); + + qt_gl_register_pixmap(this); +} + +QGLPixmapData::~QGLPixmapData() +{ + delete m_engine; + + destroyTexture(); + qt_gl_unregister_pixmap(this); +} + +void QGLPixmapData::destroyTexture() +{ + if (inTexturePool) { + QGLTexturePool *pool = QGLTexturePool::instance(); + if (m_texture.id) + pool->releaseTexture(this, m_texture.id); + } else { + if (m_texture.id) { + QGLWidget *shareWidget = qt_gl_share_widget(); + if (shareWidget) { + QGLShareContextScope ctx(shareWidget->context()); + glDeleteTextures(1, &m_texture.id); + } + } + } + m_texture.id = 0; + inTexturePool = false; +} + +QPixmapData *QGLPixmapData::createCompatiblePixmapData() const +{ + return new QGLPixmapData(pixelType()); +} + +bool QGLPixmapData::isValid() const +{ + return w > 0 && h > 0; +} + +bool QGLPixmapData::isValidContext(const QGLContext *ctx) const +{ + if (ctx == m_ctx) + return true; + + const QGLContext *share_ctx = qt_gl_share_widget()->context(); + return ctx == share_ctx || QGLContext::areSharing(ctx, share_ctx); +} + +void QGLPixmapData::resize(int width, int height) +{ + if (width == w && height == h) + return; + + if (width <= 0 || height <= 0) { + width = 0; + height = 0; + } + + w = width; + h = height; + is_null = (w <= 0 || h <= 0); + d = pixelType() == QPixmapData::PixmapType ? 32 : 1; + + destroyTexture(); + + m_source = QImage(); + m_dirty = isValid(); + setSerialNumber(++qt_gl_pixmap_serial); +} + +void QGLPixmapData::ensureCreated() const +{ + if (!m_dirty) + return; + + m_dirty = false; + + QGLShareContextScope ctx(qt_gl_share_widget()->context()); + m_ctx = ctx; + + const GLenum internal_format = m_hasAlpha ? GL_RGBA : GL_RGB; +#ifdef QT_OPENGL_ES_2 + const GLenum external_format = internal_format; +#else + const GLenum external_format = qt_gl_preferredTextureFormat(); +#endif + const GLenum target = GL_TEXTURE_2D; + + m_texture.options &= ~QGLContext::MemoryManagedBindOption; + + if (!m_texture.id) { + m_texture.id = QGLTexturePool::instance()->createTextureForPixmap( + target, + 0, internal_format, + w, h, + external_format, + GL_UNSIGNED_BYTE, + const_cast(this)); + if (!m_texture.id) { + failedToAlloc = true; + return; + } + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + + inTexturePool = true; + } else if (inTexturePool) { + glBindTexture(target, m_texture.id); + QGLTexturePool::instance()->useTexture(const_cast(this)); + } + + if (!m_source.isNull() && m_texture.id) { + if (external_format == GL_RGB) { + const QImage tx = m_source.convertToFormat(QImage::Format_RGB888).mirrored(false, true); + + glBindTexture(target, m_texture.id); + glTexSubImage2D(target, 0, 0, 0, w, h, external_format, + GL_UNSIGNED_BYTE, tx.bits()); + } else { + // do byte swizzling ARGB -> RGBA + const QImage tx = ctx->d_func()->convertToGLFormat(m_source, true, external_format); + glBindTexture(target, m_texture.id); + glTexSubImage2D(target, 0, 0, 0, w, h, external_format, + GL_UNSIGNED_BYTE, tx.bits()); + } + + if (useFramebufferObjects()) + m_source = QImage(); + } +} + + +void QGLPixmapData::fromImage(const QImage &image, + Qt::ImageConversionFlags flags) +{ + QImage img = image; + createPixmapForImage(img, flags, false); +} + +void QGLPixmapData::fromImageReader(QImageReader *imageReader, + Qt::ImageConversionFlags flags) +{ + QImage image = imageReader->read(); + if (image.isNull()) + return; + + createPixmapForImage(image, flags, true); +} + +bool QGLPixmapData::fromFile(const QString &filename, const char *format, + Qt::ImageConversionFlags flags) +{ + if (pixelType() == QPixmapData::BitmapType) + return QPixmapData::fromFile(filename, format, flags); + QFile file(filename); + if (file.open(QIODevice::ReadOnly)) { + QByteArray data = file.peek(64); + bool alpha; + if (m_texture.canBindCompressedTexture + (data.constData(), data.size(), format, &alpha)) { + resize(0, 0); + data = file.readAll(); + file.close(); + QGLShareContextScope ctx(qt_gl_share_widget()->context()); + QSize size = m_texture.bindCompressedTexture + (data.constData(), data.size(), format); + if (!size.isEmpty()) { + w = size.width(); + h = size.height(); + is_null = false; + d = 32; + m_hasAlpha = alpha; + m_source = QImage(); + m_dirty = isValid(); + return true; + } + return false; + } + } + + QImage image = QImageReader(filename, format).read(); + if (image.isNull()) + return false; + + createPixmapForImage(image, flags, true); + + return !isNull(); +} + +bool QGLPixmapData::fromData(const uchar *buffer, uint len, const char *format, + Qt::ImageConversionFlags flags) +{ + bool alpha; + const char *buf = reinterpret_cast(buffer); + if (m_texture.canBindCompressedTexture(buf, int(len), format, &alpha)) { + resize(0, 0); + QGLShareContextScope ctx(qt_gl_share_widget()->context()); + QSize size = m_texture.bindCompressedTexture(buf, int(len), format); + if (!size.isEmpty()) { + w = size.width(); + h = size.height(); + is_null = false; + d = 32; + m_hasAlpha = alpha; + m_source = QImage(); + m_dirty = isValid(); + return true; + } + } + + QByteArray a = QByteArray::fromRawData(reinterpret_cast(buffer), len); + QBuffer b(&a); + b.open(QIODevice::ReadOnly); + QImage image = QImageReader(&b, format).read(); + if (image.isNull()) + return false; + + createPixmapForImage(image, flags, true); + + return !isNull(); +} + +/*! + out-of-place conversion (inPlace == false) will always detach() + */ +void QGLPixmapData::createPixmapForImage(QImage &image, Qt::ImageConversionFlags flags, bool inPlace) +{ + if (image.size() == QSize(w, h)) + setSerialNumber(++qt_gl_pixmap_serial); + + resize(image.width(), image.height()); + + if (pixelType() == BitmapType) { + m_source = image.convertToFormat(QImage::Format_MonoLSB); + + } else { + QImage::Format format = QImage::Format_RGB32; + if (qApp->desktop()->depth() == 16) + format = QImage::Format_RGB16; + + if (image.hasAlphaChannel() + && ((flags & Qt::NoOpaqueDetection) + || const_cast(image).data_ptr()->checkForAlphaPixels())) + format = QImage::Format_ARGB32_Premultiplied; + + if (inPlace && image.data_ptr()->convertInPlace(format, flags)) { + m_source = image; + } else { + m_source = image.convertToFormat(format); + + // convertToFormat won't detach the image if format stays the same. + if (image.format() == format) + m_source.detach(); + } + } + + m_dirty = true; + m_hasFillColor = false; + + m_hasAlpha = m_source.hasAlphaChannel(); + w = image.width(); + h = image.height(); + is_null = (w <= 0 || h <= 0); + d = m_source.depth(); + + destroyTexture(); +} + +bool QGLPixmapData::scroll(int dx, int dy, const QRect &rect) +{ + Q_UNUSED(dx); + Q_UNUSED(dy); + Q_UNUSED(rect); + return false; +} + +void QGLPixmapData::copy(const QPixmapData *data, const QRect &rect) +{ + if (data->classId() != QPixmapData::OpenGLClass || !static_cast(data)->useFramebufferObjects()) { + QPixmapData::copy(data, rect); + return; + } + + const QGLPixmapData *other = static_cast(data); + if (other->m_renderFbo) { + QGLShareContextScope ctx(qt_gl_share_widget()->context()); + + resize(rect.width(), rect.height()); + m_hasAlpha = other->m_hasAlpha; + ensureCreated(); + + if (!ctx->d_ptr->fbo) + glGenFramebuffers(1, &ctx->d_ptr->fbo); + + glBindFramebuffer(GL_DRAW_FRAMEBUFFER_EXT, ctx->d_ptr->fbo); + glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, + GL_TEXTURE_2D, m_texture.id, 0); + + if (!other->m_renderFbo->isBound()) + glBindFramebuffer(GL_READ_FRAMEBUFFER_EXT, other->m_renderFbo->handle()); + + glDisable(GL_SCISSOR_TEST); + if (ctx->d_ptr->active_engine && ctx->d_ptr->active_engine->type() == QPaintEngine::OpenGL2) + static_cast(ctx->d_ptr->active_engine)->invalidateState(); + + glBlitFramebufferEXT(rect.x(), rect.y(), rect.x() + rect.width(), rect.y() + rect.height(), + 0, 0, w, h, + GL_COLOR_BUFFER_BIT, + GL_NEAREST); + + glBindFramebuffer(GL_FRAMEBUFFER_EXT, ctx->d_ptr->current_fbo); + } else { + QPixmapData::copy(data, rect); + } +} + +void QGLPixmapData::fill(const QColor &color) +{ + if (!isValid()) + return; + + bool hasAlpha = color.alpha() != 255; + if (hasAlpha && !m_hasAlpha) { + if (m_texture.id) { + destroyTexture(); + m_dirty = true; + } + m_hasAlpha = color.alpha() != 255; + } + + if (useFramebufferObjects()) { + m_source = QImage(); + m_hasFillColor = true; + m_fillColor = color; + } else { + + if (m_source.isNull()) { + m_fillColor = color; + m_hasFillColor = true; + + } else if (m_source.depth() == 32) { + m_source.fill(PREMUL(color.rgba())); + + } else if (m_source.depth() == 1) { + if (color == Qt::color1) + m_source.fill(1); + else + m_source.fill(0); + } + } +} + +bool QGLPixmapData::hasAlphaChannel() const +{ + return m_hasAlpha; +} + +QImage QGLPixmapData::fillImage(const QColor &color) const +{ + QImage img; + if (pixelType() == BitmapType) { + img = QImage(w, h, QImage::Format_MonoLSB); + + img.setColorCount(2); + img.setColor(0, QColor(Qt::color0).rgba()); + img.setColor(1, QColor(Qt::color1).rgba()); + + if (color == Qt::color1) + img.fill(1); + else + img.fill(0); + } else { + img = QImage(w, h, + m_hasAlpha + ? QImage::Format_ARGB32_Premultiplied + : QImage::Format_RGB32); + img.fill(PREMUL(color.rgba())); + } + return img; +} + +extern QImage qt_gl_read_texture(const QSize &size, bool alpha_format, bool include_alpha); + +QImage QGLPixmapData::toImage() const +{ + if (!isValid()) + return QImage(); + + if (m_renderFbo) { + copyBackFromRenderFbo(true); + } else if (!m_source.isNull()) { + QImageData *data = const_cast(m_source).data_ptr(); + if (data->paintEngine && data->paintEngine->isActive() + && data->paintEngine->paintDevice() == &m_source) + { + return m_source.copy(); + } + return m_source; + } else if (m_dirty || m_hasFillColor) { + return fillImage(m_fillColor); + } else { + ensureCreated(); + } + + QGLShareContextScope ctx(qt_gl_share_widget()->context()); + glBindTexture(GL_TEXTURE_2D, m_texture.id); + return qt_gl_read_texture(QSize(w, h), true, true); +} + +struct TextureBuffer +{ + QGLFramebufferObject *fbo; + QGL2PaintEngineEx *engine; +}; + +Q_GLOBAL_STATIC(QGLFramebufferObjectPool, _qgl_fbo_pool) +QGLFramebufferObjectPool* qgl_fbo_pool() +{ + return _qgl_fbo_pool(); +} + +void QGLPixmapData::copyBackFromRenderFbo(bool keepCurrentFboBound) const +{ + if (!isValid()) + return; + + m_hasFillColor = false; + + const QGLContext *share_ctx = qt_gl_share_widget()->context(); + QGLShareContextScope ctx(share_ctx); + + ensureCreated(); + + if (!ctx->d_ptr->fbo) + glGenFramebuffers(1, &ctx->d_ptr->fbo); + + glBindFramebuffer(GL_DRAW_FRAMEBUFFER_EXT, ctx->d_ptr->fbo); + glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, + GL_TEXTURE_2D, m_texture.id, 0); + + const int x0 = 0; + const int x1 = w; + const int y0 = 0; + const int y1 = h; + + if (!m_renderFbo->isBound()) + glBindFramebuffer(GL_READ_FRAMEBUFFER_EXT, m_renderFbo->handle()); + + glDisable(GL_SCISSOR_TEST); + + glBlitFramebufferEXT(x0, y0, x1, y1, + x0, y0, x1, y1, + GL_COLOR_BUFFER_BIT, + GL_NEAREST); + + if (keepCurrentFboBound) { + glBindFramebuffer(GL_FRAMEBUFFER_EXT, ctx->d_ptr->current_fbo); + } else { + glBindFramebuffer(GL_DRAW_FRAMEBUFFER_EXT, m_renderFbo->handle()); + ctx->d_ptr->current_fbo = m_renderFbo->handle(); + } +} + +bool QGLPixmapData::useFramebufferObjects() const +{ +#ifdef Q_OS_SYMBIAN + // We don't want to use FBOs on Symbian + return false; +#else + return QGLFramebufferObject::hasOpenGLFramebufferObjects() + && QGLFramebufferObject::hasOpenGLFramebufferBlit() + && qt_gl_preferGL2Engine() + && (w * h > 32*32); // avoid overhead of FBOs for small pixmaps +#endif +} + +QPaintEngine* QGLPixmapData::paintEngine() const +{ + if (!isValid()) + return 0; + + if (m_renderFbo) + return m_engine; + + if (useFramebufferObjects()) { + extern QGLWidget* qt_gl_share_widget(); + + if (!QGLContext::currentContext()) + qt_gl_share_widget()->makeCurrent(); + QGLShareContextScope ctx(qt_gl_share_widget()->context()); + + QGLFramebufferObjectFormat format; + format.setAttachment(QGLFramebufferObject::CombinedDepthStencil); + format.setSamples(4); + format.setInternalTextureFormat(GLenum(m_hasAlpha ? GL_RGBA : GL_RGB)); + + m_renderFbo = qgl_fbo_pool()->acquire(size(), format); + + if (m_renderFbo) { + if (!m_engine) + m_engine = new QGL2PaintEngineEx; + return m_engine; + } + + qWarning() << "Failed to create pixmap texture buffer of size " << size() << ", falling back to raster paint engine"; + } + + // If the application wants to paint into the QPixmap, we first + // force it to QImage format and then paint into that. + // This is simpler than juggling multiple GL contexts. + const_cast(this)->forceToImage(); + + if (m_hasFillColor) { + m_source.fill(PREMUL(m_fillColor.rgba())); + m_hasFillColor = false; + } + return m_source.paintEngine(); +} + +extern QRgb qt_gl_convertToGLFormat(QRgb src_pixel, GLenum texture_format); + +// If copyBack is true, bind will copy the contents of the render +// FBO to the texture (which is not bound to the texture, as it's +// a multisample FBO). +GLuint QGLPixmapData::bind(bool copyBack) const +{ + if (m_renderFbo && copyBack) { + copyBackFromRenderFbo(true); + } else { + ensureCreated(); + } + + GLuint id = m_texture.id; + glBindTexture(GL_TEXTURE_2D, id); + + if (m_hasFillColor) { + if (!useFramebufferObjects()) { + m_source = QImage(w, h, QImage::Format_ARGB32_Premultiplied); + m_source.fill(PREMUL(m_fillColor.rgba())); + } + + m_hasFillColor = false; + + GLenum format = qt_gl_preferredTextureFormat(); + QImage tx(w, h, QImage::Format_ARGB32_Premultiplied); + tx.fill(qt_gl_convertToGLFormat(m_fillColor.rgba(), format)); + glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h, format, GL_UNSIGNED_BYTE, tx.bits()); + } + + return id; +} + +QGLTexture* QGLPixmapData::texture() const +{ + return &m_texture; +} + +void QGLPixmapData::detachTextureFromPool() +{ + if (inTexturePool) { + QGLTexturePool::instance()->detachTexture(this); + inTexturePool = false; + } +} + +void QGLPixmapData::hibernate() +{ + // If the texture was imported (e.g, from an SgImage under Symbian), + // then we cannot copy it back to main memory for storage. + if (m_texture.id && m_source.isNull()) + return; + + forceToImage(); + destroyTexture(); +} + +void QGLPixmapData::reclaimTexture() +{ + if (!inTexturePool) + return; + forceToImage(); + destroyTexture(); +} + +Q_GUI_EXPORT int qt_defaultDpiX(); +Q_GUI_EXPORT int qt_defaultDpiY(); + +int QGLPixmapData::metric(QPaintDevice::PaintDeviceMetric metric) const +{ + if (w == 0) + return 0; + + switch (metric) { + case QPaintDevice::PdmWidth: + return w; + case QPaintDevice::PdmHeight: + return h; + case QPaintDevice::PdmNumColors: + return 0; + case QPaintDevice::PdmDepth: + return d; + case QPaintDevice::PdmWidthMM: + return qRound(w * 25.4 / qt_defaultDpiX()); + case QPaintDevice::PdmHeightMM: + return qRound(h * 25.4 / qt_defaultDpiY()); + case QPaintDevice::PdmDpiX: + case QPaintDevice::PdmPhysicalDpiX: + return qt_defaultDpiX(); + case QPaintDevice::PdmDpiY: + case QPaintDevice::PdmPhysicalDpiY: + return qt_defaultDpiY(); + default: + qWarning("QGLPixmapData::metric(): Invalid metric"); + return 0; + } +} + +// Force the pixmap data to be backed by some valid data. +void QGLPixmapData::forceToImage() +{ + if (!isValid()) + return; + + if (m_source.isNull()) + m_source = QImage(w, h, QImage::Format_ARGB32_Premultiplied); + + m_dirty = true; +} + +QGLPaintDevice *QGLPixmapData::glDevice() const +{ + return &m_glDevice; +} + +QT_END_NAMESPACE diff --git a/src/opengl/qwindowsurface_gl.cpp b/src/opengl/qwindowsurface_gl.cpp index 0bffbda..340f75a 100644 --- a/src/opengl/qwindowsurface_gl.cpp +++ b/src/opengl/qwindowsurface_gl.cpp @@ -181,16 +181,14 @@ QGLGraphicsSystem::QGLGraphicsSystem(bool useX11GL) // // QGLWindowSurface // - class QGLGlobalShareWidget { public: - QGLGlobalShareWidget() : widget(0), initializing(false) {} + QGLGlobalShareWidget() : firstPixmap(0), widgetRefCount(0), widget(0), initializing(false) {} QGLWidget *shareWidget() { if (!initializing && !widget && !cleanedUp) { initializing = true; - widget = new QGLWidget(QGLFormat(QGL::SingleBuffer | QGL::NoDepthBuffer | QGL::NoStencilBuffer)); widget->resize(1, 1); @@ -226,6 +224,9 @@ public: static bool cleanedUp; + QGLPixmapData *firstPixmap; + int widgetRefCount; + private: QGLWidget *widget; bool initializing; @@ -256,6 +257,41 @@ void qt_destroy_gl_share_widget() _qt_gl_share_widget()->destroy(); } +void qt_gl_register_pixmap(QGLPixmapData *pd) +{ + QGLGlobalShareWidget *shared = _qt_gl_share_widget(); + pd->next = shared->firstPixmap; + pd->prev = 0; + if (shared->firstPixmap) + shared->firstPixmap->prev = pd; + shared->firstPixmap = pd; +} + +void qt_gl_unregister_pixmap(QGLPixmapData *pd) +{ + if (pd->next) + pd->next->prev = pd->prev; + if (pd->prev) { + pd->prev->next = pd->next; + } else { + QGLGlobalShareWidget *shared = _qt_gl_share_widget(); + if (shared) + shared->firstPixmap = pd->next; + } +} + +void qt_gl_hibernate_pixmaps() +{ + QGLGlobalShareWidget *shared = _qt_gl_share_widget(); + + // Scan all QGLPixmapData objects in the system and hibernate them. + QGLPixmapData *pd = shared->firstPixmap; + while (pd != 0) { + pd->hibernate(); + pd = pd->next; + } +} + struct QGLWindowSurfacePrivate { QGLFramebufferObject *fbo; @@ -347,6 +383,27 @@ QGLWindowSurface::~QGLWindowSurface() delete d_ptr->pb; delete d_ptr->fbo; delete d_ptr; + + if (QGLGlobalShareWidget::cleanedUp) + return; + + --(_qt_gl_share_widget()->widgetRefCount); + +#ifdef QGL_USE_TEXTURE_POOL + if (_qt_gl_share_widget()->widgetRefCount <= 0) { + // All of the widget window surfaces have been destroyed + // but we still have GL pixmaps active. Ask them to hibernate + // to free up GPU resources until a widget is shown again. + // This may eventually cause the EGLContext to be destroyed + // because nothing in the system needs a context, which will + // free up even more GPU resources. + qt_gl_hibernate_pixmaps(); + + // Destroy the context if necessary. + if (!qt_gl_share_widget()->context()->isSharing()) + qt_destroy_gl_share_widget(); + } +#endif } void QGLWindowSurface::deleted(QObject *object) @@ -394,6 +451,9 @@ void QGLWindowSurface::hijackWindow(QWidget *widget) ctx->create(qt_gl_share_widget()->context()); + if (widget != qt_gl_share_widget()) + ++(_qt_gl_share_widget()->widgetRefCount); + #ifndef QT_NO_EGL static bool checkedForNOKSwapRegion = false; static bool haveNOKSwapRegion = false; @@ -405,9 +465,9 @@ void QGLWindowSurface::hijackWindow(QWidget *widget) if (haveNOKSwapRegion) qDebug() << "Found EGL_NOK_swap_region2 extension. Using partial updates."; } - - if (ctx->d_func()->eglContext->configAttrib(EGL_SWAP_BEHAVIOR) != EGL_BUFFER_PRESERVED && - ! haveNOKSwapRegion) + bool swapBehaviourPreserved = (ctx->d_func()->eglContext->configAttrib(EGL_SWAP_BEHAVIOR) + || (ctx->d_func()->eglContext->configAttrib(EGL_SURFACE_TYPE)&EGL_SWAP_BEHAVIOR_PRESERVED_BIT)); + if (!swapBehaviourPreserved && !haveNOKSwapRegion) setPartialUpdateSupport(false); // Force full-screen updates else setPartialUpdateSupport(true); @@ -421,7 +481,9 @@ void QGLWindowSurface::hijackWindow(QWidget *widget) voidPtr = &widgetPrivate->extraData()->glContext; d_ptr->contexts << ctxPtr; +#ifndef Q_OS_SYMBIAN qDebug() << "hijackWindow() context created for" << widget << d_ptr->contexts.size(); +#endif } QGLContext *QGLWindowSurface::context() const @@ -908,8 +970,9 @@ void QGLWindowSurface::updateGeometry() { if (d_ptr->destructive_swap_buffers) initializeOffscreenTexture(surfSize); #endif - - qDebug() << "QGLWindowSurface: Using plain widget as window surface" << this;; +#ifndef Q_OS_SYMBIAN + qDebug() << "QGLWindowSurface: Using plain widget as window surface" << this; +#endif d_ptr->ctx = ctx; d_ptr->ctx->d_ptr->internal_context = true; } diff --git a/src/s60installs/bwins/QtOpenGLu.def b/src/s60installs/bwins/QtOpenGLu.def index 3eb1512..87d1b56 100644 --- a/src/s60installs/bwins/QtOpenGLu.def +++ b/src/s60installs/bwins/QtOpenGLu.def @@ -711,4 +711,11 @@ EXPORTS ?createPixmapForImage@QGLPixmapData@@AAEXAAVQImage@@V?$QFlags@W4ImageConversionFlag@Qt@@@@_N@Z @ 710 NONAME ; void QGLPixmapData::createPixmapForImage(class QImage &, class QFlags, bool) ?fromImageReader@QGLPixmapData@@UAEXPAVQImageReader@@V?$QFlags@W4ImageConversionFlag@Qt@@@@@Z @ 711 NONAME ; void QGLPixmapData::fromImageReader(class QImageReader *, class QFlags) ?setContext@QGLTextureGlyphCache@@QAEXPAVQGLContext@@@Z @ 712 NONAME ; void QGLTextureGlyphCache::setContext(class QGLContext *) + ?hibernate@QGLPixmapData@@QAEXXZ @ 713 NONAME ; void QGLPixmapData::hibernate(void) + ?detachTextureFromPool@QGLPixmapData@@QAEXXZ @ 714 NONAME ; void QGLPixmapData::detachTextureFromPool(void) + ?reclaimTexture@QGLPixmapData@@QAEXXZ @ 715 NONAME ; void QGLPixmapData::reclaimTexture(void) + ?destroyTexture@QGLPixmapData@@QAEXXZ @ 716 NONAME ; void QGLPixmapData::destroyTexture(void) + ?releaseCachedResources@QGLGraphicsSystem@@UAEXXZ @ 717 NONAME ; void QGLGraphicsSystem::releaseCachedResources(void) + ?serialNumber@QGLTextureGlyphCache@@QBEHXZ @ 718 NONAME ; int QGLTextureGlyphCache::serialNumber(void) const + ?forceToImage@QGLPixmapData@@QAEXXZ @ 719 NONAME ; void QGLPixmapData::forceToImage(void) diff --git a/src/s60installs/eabi/QtOpenGLu.def b/src/s60installs/eabi/QtOpenGLu.def index 33d40fd..4c5dca9 100644 --- a/src/s60installs/eabi/QtOpenGLu.def +++ b/src/s60installs/eabi/QtOpenGLu.def @@ -714,4 +714,10 @@ EXPORTS _ZN16QGLWindowSurface12swapBehaviorE @ 713 NONAME DATA 4 _ZN20QGLTextureGlyphCache10setContextEP10QGLContext @ 714 NONAME _ZN20QGLTextureGlyphCache5clearEv @ 715 NONAME + _ZN13QGLPixmapData12forceToImageEv @ 716 NONAME + _ZN13QGLPixmapData14destroyTextureEv @ 717 NONAME + _ZN13QGLPixmapData14reclaimTextureEv @ 718 NONAME + _ZN13QGLPixmapData21detachTextureFromPoolEv @ 719 NONAME + _ZN13QGLPixmapData9hibernateEv @ 720 NONAME + _ZN17QGLGraphicsSystem22releaseCachedResourcesEv @ 721 NONAME -- cgit v0.12