Initial import from the monolithic Qt.

This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
Qt Git wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:

http://qt.gitorious.org/qt/pages/GitIntroductionWithQt

If you have already performed the grafting and you don't see any
history beyond this commit, try running "git log" with the "--follow"
argument.

Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 247 insertions, 0 deletions

diff --git a/src/opengl/qpixmapdata_gl_p.h b/src/opengl/qpixmapdata_gl_p.h
new file mode 100644
index 0000000000..8855c20362
--- /dev/null
+++ b/src/opengl/qpixmapdata_gl_p.h
@@ -0,0 +1,247 @@
+/****************************************************************************
+**
+** 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
+
+