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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 QGLPIXELBUFFER_P_H |
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43 #define QGLPIXELBUFFER_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 for the convenience |
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50 // of the QLibrary class. This header file may change from |
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51 // version to 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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56 QT_BEGIN_NAMESPACE |
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57 |
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58 QT_BEGIN_INCLUDE_NAMESPACE |
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59 #include "QtOpenGL/qglpixelbuffer.h" |
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60 #include <private/qgl_p.h> |
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61 #include <private/qglpaintdevice_p.h> |
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62 |
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63 #if defined(Q_WS_X11) && !defined(QT_OPENGL_ES) |
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64 #include <GL/glx.h> |
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65 |
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66 // The below is needed to for compilation on HPUX, due to broken GLX |
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67 // headers. Some of the systems define GLX_VERSION_1_3 without |
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68 // defining the GLXFBConfig structure, which is wrong. |
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69 #if defined (Q_OS_HPUX) && defined(QT_DEFINE_GLXFBCONFIG_STRUCT) |
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70 typedef unsigned long GLXPbuffer; |
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71 |
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72 struct GLXFBConfig { |
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73 int visualType; |
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74 int transparentType; |
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75 /* colors are floats scaled to ints */ |
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76 int transparentRed, transparentGreen, transparentBlue, transparentAlpha; |
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77 int transparentIndex; |
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78 |
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79 int visualCaveat; |
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80 |
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81 int associatedVisualId; |
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82 int screen; |
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83 |
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84 int drawableType; |
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85 int renderType; |
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86 |
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87 int maxPbufferWidth, maxPbufferHeight, maxPbufferPixels; |
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88 int optimalPbufferWidth, optimalPbufferHeight; /* for SGIX_pbuffer */ |
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89 |
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90 int visualSelectGroup; /* visuals grouped by select priority */ |
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91 |
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92 unsigned int id; |
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93 |
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94 GLboolean rgbMode; |
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95 GLboolean colorIndexMode; |
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96 GLboolean doubleBufferMode; |
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97 GLboolean stereoMode; |
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98 GLboolean haveAccumBuffer; |
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99 GLboolean haveDepthBuffer; |
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100 GLboolean haveStencilBuffer; |
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101 |
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102 /* The number of bits present in various buffers */ |
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103 GLint accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits; |
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104 GLint depthBits; |
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105 GLint stencilBits; |
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106 GLint indexBits; |
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107 GLint redBits, greenBits, blueBits, alphaBits; |
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108 GLuint redMask, greenMask, blueMask, alphaMask; |
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109 |
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110 GLuint multiSampleSize; /* Number of samples per pixel (0 if no ms) */ |
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111 |
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112 GLuint nMultiSampleBuffers; /* Number of available ms buffers */ |
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113 GLint maxAuxBuffers; |
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114 |
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115 /* frame buffer level */ |
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116 GLint level; |
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117 |
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118 /* color ranges (for SGI_color_range) */ |
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119 GLboolean extendedRange; |
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120 GLdouble minRed, maxRed; |
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121 GLdouble minGreen, maxGreen; |
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122 GLdouble minBlue, maxBlue; |
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123 GLdouble minAlpha, maxAlpha; |
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124 }; |
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125 |
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126 #endif // Q_OS_HPUX |
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127 |
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128 #elif defined(Q_WS_WIN) |
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129 DECLARE_HANDLE(HPBUFFERARB); |
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130 #elif defined(QT_OPENGL_ES_2) |
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131 #include <EGL/egl.h> |
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132 #elif defined(QT_OPENGL_ES) |
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133 #include <GLES/egl.h> |
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134 #endif |
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135 QT_END_INCLUDE_NAMESPACE |
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136 |
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137 class QEglContext; |
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138 |
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139 |
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140 class QGLPBufferGLPaintDevice : public QGLPaintDevice |
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141 { |
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142 public: |
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143 virtual QPaintEngine* paintEngine() const {return pbuf->paintEngine();} |
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144 virtual QSize size() const {return pbuf->size();} |
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145 virtual QGLContext* context() const; |
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146 virtual void endPaint(); |
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147 void setPBuffer(QGLPixelBuffer* pb); |
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148 private: |
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149 QGLPixelBuffer* pbuf; |
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150 }; |
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151 |
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152 class QGLPixelBufferPrivate { |
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153 Q_DECLARE_PUBLIC(QGLPixelBuffer) |
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154 public: |
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155 QGLPixelBufferPrivate(QGLPixelBuffer *q) : q_ptr(q), invalid(true), qctx(0), pbuf(0), ctx(0) |
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156 { |
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157 QGLExtensions::init(); |
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158 #ifdef Q_WS_WIN |
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159 dc = 0; |
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160 #elif defined(Q_WS_MACX) |
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161 share_ctx = 0; |
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162 #endif |
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163 } |
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164 bool init(const QSize &size, const QGLFormat &f, QGLWidget *shareWidget); |
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165 void common_init(const QSize &size, const QGLFormat &f, QGLWidget *shareWidget); |
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166 bool cleanup(); |
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167 |
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168 QGLPixelBuffer *q_ptr; |
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169 bool invalid; |
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170 QGLContext *qctx; |
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171 QGLPBufferGLPaintDevice glDevice; |
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172 QGLFormat format; |
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173 |
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174 QGLFormat req_format; |
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175 QPointer<QGLWidget> req_shareWidget; |
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176 QSize req_size; |
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177 |
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178 #if defined(Q_WS_X11) && !defined(QT_OPENGL_ES) |
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179 GLXPbuffer pbuf; |
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180 GLXContext ctx; |
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181 #elif defined(Q_WS_WIN) |
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182 HDC dc; |
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183 bool has_render_texture :1; |
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184 #if !defined(QT_OPENGL_ES) |
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185 HPBUFFERARB pbuf; |
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186 HGLRC ctx; |
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187 #endif |
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188 #elif defined(Q_WS_MACX) |
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189 # ifdef QT_MAC_USE_COCOA |
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190 void *pbuf; |
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191 void *ctx; |
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192 void *share_ctx; |
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193 # else |
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194 AGLPbuffer pbuf; |
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195 AGLContext ctx; |
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196 AGLContext share_ctx; |
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197 # endif |
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198 #endif |
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199 #if defined(QT_OPENGL_ES) |
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200 EGLSurface pbuf; |
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201 QEglContext *ctx; |
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202 int textureFormat; |
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203 #endif |
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204 }; |
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205 |
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206 QT_END_NAMESPACE |
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207 |
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208 #endif // QGLPIXELBUFFER_P_H |