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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtOpenGL module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QPIXMAPDATA_GL_P_H
+#define QPIXMAPDATA_GL_P_H
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qgl_p.h"
+#include "qgl.h"
+
+#include "private/qpixmapdata_p.h"
+#include "private/qglpaintdevice_p.h"
+
+#ifdef Q_OS_SYMBIAN
+#include "private/qvolatileimage_p.h"
+#endif
+
+QT_BEGIN_NAMESPACE
+
+class QPaintEngine;
+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
+
+#ifdef Q_OS_SYMBIAN
+class QNativeImageHandleProvider;
+#endif
+
+class QGLFramebufferObjectPool
+{
+public:
+ QGLFramebufferObject *acquire(const QSize &size, const QGLFramebufferObjectFormat &format, bool strictSize = false);
+ void release(QGLFramebufferObject *fbo);
+
+private:
+ QList<QGLFramebufferObject *> m_fbos;
+};
+
+QGLFramebufferObjectPool* qgl_fbo_pool();
+
+
+class QGLPixmapGLPaintDevice : public QGLPaintDevice
+{
+public:
+ QPaintEngine* paintEngine() const;
+
+ void beginPaint();
+ void endPaint();
+ QGLContext* context() const;
+ QSize size() const;
+ bool alphaRequested() const;
+
+ void setPixmapData(QGLPixmapData*);
+private:
+ QGLPixmapData *data;
+};
+
+
+class Q_OPENGL_EXPORT QGLPixmapData : public QPixmapData
+{
+public:
+ QGLPixmapData(PixelType type);
+ ~QGLPixmapData();
+
+ QPixmapData *createCompatiblePixmapData() const;
+
+ // Re-implemented from QPixmapData:
+ void resize(int width, int height);
+ void fromImage(const QImage &image, Qt::ImageConversionFlags flags);
+ void fromImageReader(QImageReader *imageReader,
+ Qt::ImageConversionFlags flags);
+ bool fromFile(const QString &filename, const char *format,
+ Qt::ImageConversionFlags flags);
+ bool fromData(const uchar *buffer, uint len, const char *format,
+ Qt::ImageConversionFlags flags);
+ void copy(const QPixmapData *data, const QRect &rect);
+ bool scroll(int dx, int dy, const QRect &rect);
+ void fill(const QColor &color);
+ bool hasAlphaChannel() const;
+ QImage toImage() const;
+ QPaintEngine *paintEngine() const;
+ int metric(QPaintDevice::PaintDeviceMetric metric) const;
+
+ // For accessing as a target:
+ QGLPaintDevice *glDevice() const;
+
+ // For accessing as a source:
+ bool isValidContext(const QGLContext *ctx) const;
+ GLuint bind(bool copyBack = true) const;
+ QGLTexture *texture() const;
+
+#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
+ QImage::Format idealFormat(QImage &image, Qt::ImageConversionFlags flags);
+ void* toNativeType(NativeType type);
+ void fromNativeType(void* pixmap, NativeType type);
+ bool initFromNativeImageHandle(void *handle, const QString &type);
+ void createFromNativeImageHandleProvider();
+ void releaseNativeImageHandle();
+#endif
+
+private:
+ bool isValid() const;
+
+ void ensureCreated() const;
+
+ bool isUninitialized() const { return m_dirty && m_source.isNull(); }
+
+ bool needsFill() const { return m_hasFillColor; }
+ QColor fillColor() const { return m_fillColor; }
+
+
+
+ QGLPixmapData(const QGLPixmapData &other);
+ QGLPixmapData &operator=(const QGLPixmapData &other);
+
+ void copyBackFromRenderFbo(bool keepCurrentFboBound) const;
+ QSize size() const { return QSize(w, h); }
+
+ bool useFramebufferObjects() const;
+
+ QImage fillImage(const QColor &color) const;
+
+ void createPixmapForImage(QImage &image, Qt::ImageConversionFlags flags, bool inPlace);
+
+ mutable QGLFramebufferObject *m_renderFbo;
+ mutable QPaintEngine *m_engine;
+ mutable QGLContext *m_ctx;
+#ifdef Q_OS_SYMBIAN
+ mutable QVolatileImage m_source;
+ mutable QNativeImageHandleProvider *nativeImageHandleProvider;
+ void *nativeImageHandle;
+ QString nativeImageType;
+#else
+ mutable QImage m_source;
+#endif
+ mutable QGLTexture m_texture;
+
+ // the texture is not in sync with the source image
+ mutable bool m_dirty;
+
+ // fill has been called and no painting has been done, so the pixmap is
+ // represented by a single fill color
+ mutable QColor m_fillColor;
+ mutable bool m_hasFillColor;
+
+ mutable bool m_hasAlpha;
+
+ 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;
+};
+
+QT_END_NAMESPACE
+
+#endif // QPIXMAPDATA_GL_P_H
+
+