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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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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 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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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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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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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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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 QGLFRAMEBUFFEROBJECT_H |
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43 #define QGLFRAMEBUFFEROBJECT_H |
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44 |
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45 #include <QtOpenGL/qgl.h> |
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46 #include <QtGui/qpaintdevice.h> |
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47 |
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48 QT_BEGIN_HEADER |
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49 |
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50 QT_BEGIN_NAMESPACE |
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51 |
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52 QT_MODULE(OpenGL) |
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53 |
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54 class QGLFramebufferObjectPrivate; |
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55 class QGLFramebufferObjectFormat; |
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56 |
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57 class Q_OPENGL_EXPORT QGLFramebufferObject : public QPaintDevice |
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58 { |
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59 Q_DECLARE_PRIVATE(QGLFramebufferObject) |
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60 public: |
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61 enum Attachment { |
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62 NoAttachment, |
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63 CombinedDepthStencil, |
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64 Depth |
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65 }; |
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66 |
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67 QGLFramebufferObject(const QSize &size, GLenum target = GL_TEXTURE_2D); |
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68 QGLFramebufferObject(int width, int height, GLenum target = GL_TEXTURE_2D); |
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69 #if !defined(QT_OPENGL_ES) || defined(Q_QDOC) |
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70 QGLFramebufferObject(const QSize &size, Attachment attachment, |
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71 GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA8); |
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72 QGLFramebufferObject(int width, int height, Attachment attachment, |
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73 GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA8); |
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74 #else |
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75 QGLFramebufferObject(const QSize &size, Attachment attachment, |
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76 GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA); |
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77 QGLFramebufferObject(int width, int height, Attachment attachment, |
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78 GLenum target = GL_TEXTURE_2D, GLenum internal_format = GL_RGBA); |
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79 #endif |
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80 |
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81 QGLFramebufferObject(const QSize &size, const QGLFramebufferObjectFormat &format); |
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82 QGLFramebufferObject(int width, int height, const QGLFramebufferObjectFormat &format); |
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83 |
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84 #ifdef Q_MAC_COMPAT_GL_FUNCTIONS |
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85 QGLFramebufferObject(const QSize &size, QMacCompatGLenum target = GL_TEXTURE_2D); |
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86 QGLFramebufferObject(int width, int height, QMacCompatGLenum target = GL_TEXTURE_2D); |
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87 |
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88 QGLFramebufferObject(const QSize &size, Attachment attachment, |
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89 QMacCompatGLenum target = GL_TEXTURE_2D, QMacCompatGLenum internal_format = GL_RGBA8); |
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90 QGLFramebufferObject(int width, int height, Attachment attachment, |
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91 QMacCompatGLenum target = GL_TEXTURE_2D, QMacCompatGLenum internal_format = GL_RGBA8); |
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92 #endif |
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93 |
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94 virtual ~QGLFramebufferObject(); |
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95 |
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96 QGLFramebufferObjectFormat format() const; |
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97 |
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98 bool isValid() const; |
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99 bool isBound() const; |
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100 bool bind(); |
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101 bool release(); |
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102 |
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103 GLuint texture() const; |
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104 QSize size() const; |
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105 QImage toImage() const; |
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106 Attachment attachment() const; |
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107 |
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108 QPaintEngine *paintEngine() const; |
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109 GLuint handle() const; |
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110 |
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111 static bool hasOpenGLFramebufferObjects(); |
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112 |
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113 void drawTexture(const QRectF &target, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D); |
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114 void drawTexture(const QPointF &point, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D); |
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115 #ifdef Q_MAC_COMPAT_GL_FUNCTIONS |
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116 void drawTexture(const QRectF &target, QMacCompatGLuint textureId, QMacCompatGLenum textureTarget = GL_TEXTURE_2D); |
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117 void drawTexture(const QPointF &point, QMacCompatGLuint textureId, QMacCompatGLenum textureTarget = GL_TEXTURE_2D); |
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118 #endif |
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119 |
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120 static bool hasOpenGLFramebufferBlit(); |
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121 static void blitFramebuffer(QGLFramebufferObject *target, const QRect &targetRect, |
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122 QGLFramebufferObject *source, const QRect &sourceRect, |
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123 GLbitfield buffers = GL_COLOR_BUFFER_BIT, |
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124 GLenum filter = GL_NEAREST); |
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125 |
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126 protected: |
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127 int metric(PaintDeviceMetric metric) const; |
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128 int devType() const { return QInternal::FramebufferObject; } |
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129 |
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130 private: |
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131 Q_DISABLE_COPY(QGLFramebufferObject) |
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132 QScopedPointer<QGLFramebufferObjectPrivate> d_ptr; |
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133 friend class QGLPaintDevice; |
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134 friend class QGLFBOGLPaintDevice; |
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135 }; |
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136 |
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137 class QGLFramebufferObjectFormatPrivate; |
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138 class Q_OPENGL_EXPORT QGLFramebufferObjectFormat |
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139 { |
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140 public: |
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141 QGLFramebufferObjectFormat(); |
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142 QGLFramebufferObjectFormat(const QGLFramebufferObjectFormat &other); |
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143 QGLFramebufferObjectFormat &operator=(const QGLFramebufferObjectFormat &other); |
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144 ~QGLFramebufferObjectFormat(); |
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145 |
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146 void setSamples(int samples); |
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147 int samples() const; |
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148 |
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149 void setAttachment(QGLFramebufferObject::Attachment attachment); |
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150 QGLFramebufferObject::Attachment attachment() const; |
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151 |
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152 void setTextureTarget(GLenum target); |
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153 GLenum textureTarget() const; |
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154 |
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155 void setInternalTextureFormat(GLenum internalTextureFormat); |
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156 GLenum internalTextureFormat() const; |
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157 |
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158 #ifdef Q_MAC_COMPAT_GL_FUNCTIONS |
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159 void setTextureTarget(QMacCompatGLenum target); |
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160 void setInternalTextureFormat(QMacCompatGLenum internalTextureFormat); |
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161 #endif |
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162 |
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163 bool operator==(const QGLFramebufferObjectFormat& other) const; |
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164 bool operator!=(const QGLFramebufferObjectFormat& other) const; |
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165 |
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166 private: |
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167 QGLFramebufferObjectFormatPrivate *d; |
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168 |
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169 void detach(); |
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170 }; |
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171 |
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172 QT_END_NAMESPACE |
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173 |
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174 QT_END_HEADER |
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175 #endif // QGLFRAMEBUFFEROBJECT_H |