[2] | 1 | /****************************************************************************
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| 2 | **
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[651] | 3 | ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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[561] | 4 | ** All rights reserved.
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| 5 | ** Contact: Nokia Corporation ([email protected])
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[2] | 6 | **
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| 7 | ** This file is part of the QtOpenGL module of the Qt Toolkit.
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| 8 | **
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| 9 | ** $QT_BEGIN_LICENSE:LGPL$
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| 10 | ** Commercial Usage
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| 11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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| 12 | ** accordance with the Qt Commercial License Agreement provided with the
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| 13 | ** Software or, alternatively, in accordance with the terms contained in
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| 14 | ** a written agreement between you and Nokia.
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| 15 | **
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| 16 | ** GNU Lesser General Public License Usage
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| 17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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| 18 | ** General Public License version 2.1 as published by the Free Software
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| 19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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| 20 | ** packaging of this file. Please review the following information to
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| 21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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| 22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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| 23 | **
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[561] | 24 | ** In addition, as a special exception, Nokia gives you certain additional
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| 25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
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| 26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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[2] | 27 | **
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| 28 | ** GNU General Public License Usage
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| 29 | ** Alternatively, this file may be used under the terms of the GNU
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| 30 | ** General Public License version 3.0 as published by the Free Software
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| 31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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| 32 | ** packaging of this file. Please review the following information to
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| 33 | ** ensure the GNU General Public License version 3.0 requirements will be
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| 34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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| 35 | **
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[561] | 36 | ** If you have questions regarding the use of this file, please contact
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| 37 | ** Nokia at [email protected].
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[2] | 38 | ** $QT_END_LICENSE$
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| 39 | **
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| 40 | ****************************************************************************/
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| 41 |
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| 42 | #ifndef QPIXMAPDATA_GL_P_H
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| 43 | #define QPIXMAPDATA_GL_P_H
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| 44 |
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| 45 | //
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| 46 | // W A R N I N G
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| 47 | // -------------
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| 48 | //
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| 49 | // This file is not part of the Qt API. It exists purely as an
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| 50 | // implementation detail. This header file may change from version to
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| 51 | // version without notice, or even be removed.
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| 52 | //
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| 53 | // We mean it.
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| 54 | //
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| 55 |
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[561] | 56 | #include "qgl_p.h"
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[2] | 57 | #include "qgl.h"
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| 58 |
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| 59 | #include "private/qpixmapdata_p.h"
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[561] | 60 | #include "private/qglpaintdevice_p.h"
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[2] | 61 |
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| 62 | QT_BEGIN_NAMESPACE
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| 63 |
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| 64 | class QPaintEngine;
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[561] | 65 | class QGLFramebufferObject;
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| 66 | class QGLFramebufferObjectFormat;
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| 67 | class QGLPixmapData;
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[2] | 68 |
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[561] | 69 | class QGLFramebufferObjectPool
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| 70 | {
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| 71 | public:
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| 72 | QGLFramebufferObject *acquire(const QSize &size, const QGLFramebufferObjectFormat &format, bool strictSize = false);
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| 73 | void release(QGLFramebufferObject *fbo);
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| 74 |
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| 75 | private:
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| 76 | QList<QGLFramebufferObject *> m_fbos;
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| 77 | };
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| 78 |
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| 79 | QGLFramebufferObjectPool* qgl_fbo_pool();
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| 80 |
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| 81 |
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| 82 | class QGLPixmapGLPaintDevice : public QGLPaintDevice
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| 83 | {
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| 84 | public:
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| 85 | QPaintEngine* paintEngine() const;
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| 86 |
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| 87 | void beginPaint();
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| 88 | void endPaint();
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| 89 | QGLContext* context() const;
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| 90 | QSize size() const;
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| 91 |
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| 92 | void setPixmapData(QGLPixmapData*);
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| 93 | private:
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| 94 | QGLPixmapData *data;
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| 95 | };
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| 96 |
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| 97 |
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[2] | 98 | class QGLPixmapData : public QPixmapData
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| 99 | {
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| 100 | public:
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| 101 | QGLPixmapData(PixelType type);
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| 102 | ~QGLPixmapData();
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| 103 |
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[561] | 104 | QPixmapData *createCompatiblePixmapData() const;
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[2] | 105 |
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[561] | 106 | // Re-implemented from QPixmapData:
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[2] | 107 | void resize(int width, int height);
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[561] | 108 | void fromImage(const QImage &image, Qt::ImageConversionFlags flags);
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| 109 | bool fromFile(const QString &filename, const char *format,
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| 110 | Qt::ImageConversionFlags flags);
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| 111 | bool fromData(const uchar *buffer, uint len, const char *format,
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| 112 | Qt::ImageConversionFlags flags);
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| 113 | void copy(const QPixmapData *data, const QRect &rect);
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| 114 | bool scroll(int dx, int dy, const QRect &rect);
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[2] | 115 | void fill(const QColor &color);
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| 116 | bool hasAlphaChannel() const;
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| 117 | QImage toImage() const;
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[561] | 118 | QPaintEngine *paintEngine() const;
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| 119 | int metric(QPaintDevice::PaintDeviceMetric metric) const;
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[2] | 120 |
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[561] | 121 | // For accessing as a target:
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| 122 | QGLPaintDevice *glDevice() const;
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[2] | 123 |
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[561] | 124 | // For accessing as a source:
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[2] | 125 | bool isValidContext(const QGLContext *ctx) const;
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[561] | 126 | GLuint bind(bool copyBack = true) const;
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| 127 | QGLTexture *texture() const;
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[2] | 128 |
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[561] | 129 | private:
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| 130 | bool isValid() const;
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| 131 |
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[2] | 132 | void ensureCreated() const;
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| 133 |
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[561] | 134 | bool isUninitialized() const { return m_dirty && m_source.isNull(); }
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[2] | 135 |
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[561] | 136 | bool needsFill() const { return m_hasFillColor; }
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| 137 | QColor fillColor() const { return m_fillColor; }
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| 138 |
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| 139 |
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| 140 |
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[2] | 141 | QGLPixmapData(const QGLPixmapData &other);
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| 142 | QGLPixmapData &operator=(const QGLPixmapData &other);
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| 143 |
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[561] | 144 | void copyBackFromRenderFbo(bool keepCurrentFboBound) const;
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| 145 | QSize size() const { return QSize(w, h); }
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[2] | 146 |
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[561] | 147 | static bool useFramebufferObjects();
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| 148 |
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| 149 | QImage fillImage(const QColor &color) const;
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| 150 |
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| 151 | mutable QGLFramebufferObject *m_renderFbo;
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| 152 | mutable QPaintEngine *m_engine;
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| 153 | mutable QGLContext *m_ctx;
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| 154 | mutable QImage m_source;
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| 155 | mutable QGLTexture m_texture;
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| 156 |
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| 157 | // the texture is not in sync with the source image
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[2] | 158 | mutable bool m_dirty;
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[561] | 159 |
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| 160 | // fill has been called and no painting has been done, so the pixmap is
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| 161 | // represented by a single fill color
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| 162 | mutable QColor m_fillColor;
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| 163 | mutable bool m_hasFillColor;
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| 164 |
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| 165 | mutable bool m_hasAlpha;
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| 166 |
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| 167 | mutable QGLPixmapGLPaintDevice m_glDevice;
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| 168 |
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| 169 | friend class QGLPixmapGLPaintDevice;
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[2] | 170 | };
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| 171 |
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| 172 | QT_END_NAMESPACE
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| 173 |
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| 174 | #endif // QPIXMAPDATA_GL_P_H
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| 175 |
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| 176 |
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