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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 demonstration applications 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 GLEXTENSIONS_H |
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43 #define GLEXTENSIONS_H |
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44 |
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45 #include <QtOpenGL> |
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46 |
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47 /* |
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48 Functions resolved: |
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49 |
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50 glGenFramebuffersEXT |
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51 glGenRenderbuffersEXT |
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52 glBindRenderbufferEXT |
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53 glRenderbufferStorageEXT |
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54 glDeleteFramebuffersEXT |
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55 glDeleteRenderbuffersEXT |
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56 glBindFramebufferEXT |
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57 glFramebufferTexture2DEXT |
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58 glFramebufferRenderbufferEXT |
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59 glCheckFramebufferStatusEXT |
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60 |
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61 glActiveTexture |
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62 glTexImage3D |
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63 |
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64 glGenBuffers |
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65 glBindBuffer |
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66 glBufferData |
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67 glDeleteBuffers |
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68 glMapBuffer |
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69 glUnmapBuffer |
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70 */ |
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71 |
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72 #ifndef Q_WS_MAC |
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73 # ifndef APIENTRYP |
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74 # ifdef APIENTRY |
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75 # define APIENTRYP APIENTRY * |
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76 # else |
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77 # define APIENTRY |
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78 # define APIENTRYP * |
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79 # endif |
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80 # endif |
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81 #else |
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82 # define APIENTRY |
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83 # define APIENTRYP * |
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84 #endif |
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85 |
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86 #ifndef GL_VERSION_1_2 |
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87 #define GL_TEXTURE_3D 0x806F |
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88 #define GL_TEXTURE_WRAP_R 0x8072 |
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89 #define GL_CLAMP_TO_EDGE 0x812F |
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90 #define GL_BGRA 0x80E1 |
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91 #endif |
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92 |
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93 #ifndef GL_VERSION_1_3 |
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94 #define GL_TEXTURE0 0x84C0 |
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95 #define GL_TEXTURE1 0x84C1 |
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96 #define GL_TEXTURE2 0x84C2 |
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97 #define GL_TEXTURE_CUBE_MAP 0x8513 |
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98 #define GL_TEXTURE_CUBE_MAP_POSITIVE_X 0x8515 |
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99 //#define GL_TEXTURE_CUBE_MAP_NEGATIVE_X 0x8516 |
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100 //#define GL_TEXTURE_CUBE_MAP_POSITIVE_Y 0x8517 |
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101 //#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y 0x8518 |
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102 //#define GL_TEXTURE_CUBE_MAP_POSITIVE_Z 0x8519 |
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103 //#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z 0x851A |
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104 #endif |
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105 |
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106 #ifndef GL_ARB_vertex_buffer_object |
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107 typedef ptrdiff_t GLsizeiptrARB; |
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108 #endif |
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109 |
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110 #ifndef GL_VERSION_1_5 |
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111 #define GL_ARRAY_BUFFER 0x8892 |
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112 #define GL_ELEMENT_ARRAY_BUFFER 0x8893 |
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113 #define GL_READ_WRITE 0x88BA |
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114 #define GL_STATIC_DRAW 0x88E4 |
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115 #endif |
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116 |
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117 #ifndef GL_EXT_framebuffer_object |
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118 #define GL_RENDERBUFFER_EXT 0x8D41 |
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119 #define GL_FRAMEBUFFER_EXT 0x8D40 |
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120 #define GL_FRAMEBUFFER_COMPLETE_EXT 0x8CD5 |
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121 #define GL_COLOR_ATTACHMENT0_EXT 0x8CE0 |
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122 #define GL_DEPTH_ATTACHMENT_EXT 0x8D00 |
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123 #endif |
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124 |
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125 typedef void (APIENTRY *_glGenFramebuffersEXT) (GLsizei, GLuint *); |
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126 typedef void (APIENTRY *_glGenRenderbuffersEXT) (GLsizei, GLuint *); |
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127 typedef void (APIENTRY *_glBindRenderbufferEXT) (GLenum, GLuint); |
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128 typedef void (APIENTRY *_glRenderbufferStorageEXT) (GLenum, GLenum, GLsizei, GLsizei); |
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129 typedef void (APIENTRY *_glDeleteFramebuffersEXT) (GLsizei, const GLuint*); |
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130 typedef void (APIENTRY *_glDeleteRenderbuffersEXT) (GLsizei, const GLuint*); |
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131 typedef void (APIENTRY *_glBindFramebufferEXT) (GLenum, GLuint); |
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132 typedef void (APIENTRY *_glFramebufferTexture2DEXT) (GLenum, GLenum, GLenum, GLuint, GLint); |
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133 typedef void (APIENTRY *_glFramebufferRenderbufferEXT) (GLenum, GLenum, GLenum, GLuint); |
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134 typedef GLenum (APIENTRY *_glCheckFramebufferStatusEXT) (GLenum); |
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135 |
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136 typedef void (APIENTRY *_glActiveTexture) (GLenum); |
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137 typedef void (APIENTRY *_glTexImage3D) (GLenum, GLint, GLenum, GLsizei, GLsizei, GLsizei, GLint, GLenum, GLenum, const GLvoid *); |
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138 |
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139 typedef void (APIENTRY *_glGenBuffers) (GLsizei, GLuint *); |
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140 typedef void (APIENTRY *_glBindBuffer) (GLenum, GLuint); |
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141 typedef void (APIENTRY *_glBufferData) (GLenum, GLsizeiptrARB, const GLvoid *, GLenum); |
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142 typedef void (APIENTRY *_glDeleteBuffers) (GLsizei, const GLuint *); |
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143 typedef void *(APIENTRY *_glMapBuffer) (GLenum, GLenum); |
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144 typedef GLboolean (APIENTRY *_glUnmapBuffer) (GLenum); |
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145 |
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146 struct GLExtensionFunctions |
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147 { |
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148 bool resolve(const QGLContext *context); |
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149 |
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150 bool fboSupported(); |
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151 bool openGL15Supported(); // the rest: multi-texture, 3D-texture, vertex buffer objects |
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152 |
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153 _glGenFramebuffersEXT GenFramebuffersEXT; |
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154 _glGenRenderbuffersEXT GenRenderbuffersEXT; |
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155 _glBindRenderbufferEXT BindRenderbufferEXT; |
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156 _glRenderbufferStorageEXT RenderbufferStorageEXT; |
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157 _glDeleteFramebuffersEXT DeleteFramebuffersEXT; |
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158 _glDeleteRenderbuffersEXT DeleteRenderbuffersEXT; |
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159 _glBindFramebufferEXT BindFramebufferEXT; |
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160 _glFramebufferTexture2DEXT FramebufferTexture2DEXT; |
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161 _glFramebufferRenderbufferEXT FramebufferRenderbufferEXT; |
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162 _glCheckFramebufferStatusEXT CheckFramebufferStatusEXT; |
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163 |
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164 _glActiveTexture ActiveTexture; |
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165 _glTexImage3D TexImage3D; |
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166 |
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167 _glGenBuffers GenBuffers; |
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168 _glBindBuffer BindBuffer; |
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169 _glBufferData BufferData; |
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170 _glDeleteBuffers DeleteBuffers; |
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171 _glMapBuffer MapBuffer; |
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172 _glUnmapBuffer UnmapBuffer; |
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173 }; |
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174 |
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175 inline GLExtensionFunctions &getGLExtensionFunctions() |
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176 { |
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177 static GLExtensionFunctions funcs; |
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178 return funcs; |
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179 } |
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180 |
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181 #define glGenFramebuffersEXT getGLExtensionFunctions().GenFramebuffersEXT |
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182 #define glGenRenderbuffersEXT getGLExtensionFunctions().GenRenderbuffersEXT |
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183 #define glBindRenderbufferEXT getGLExtensionFunctions().BindRenderbufferEXT |
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184 #define glRenderbufferStorageEXT getGLExtensionFunctions().RenderbufferStorageEXT |
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185 #define glDeleteFramebuffersEXT getGLExtensionFunctions().DeleteFramebuffersEXT |
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186 #define glDeleteRenderbuffersEXT getGLExtensionFunctions().DeleteRenderbuffersEXT |
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187 #define glBindFramebufferEXT getGLExtensionFunctions().BindFramebufferEXT |
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188 #define glFramebufferTexture2DEXT getGLExtensionFunctions().FramebufferTexture2DEXT |
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189 #define glFramebufferRenderbufferEXT getGLExtensionFunctions().FramebufferRenderbufferEXT |
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190 #define glCheckFramebufferStatusEXT getGLExtensionFunctions().CheckFramebufferStatusEXT |
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191 |
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192 #define glActiveTexture getGLExtensionFunctions().ActiveTexture |
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193 #define glTexImage3D getGLExtensionFunctions().TexImage3D |
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194 |
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195 #define glGenBuffers getGLExtensionFunctions().GenBuffers |
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196 #define glBindBuffer getGLExtensionFunctions().BindBuffer |
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197 #define glBufferData getGLExtensionFunctions().BufferData |
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198 #define glDeleteBuffers getGLExtensionFunctions().DeleteBuffers |
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199 #define glMapBuffer getGLExtensionFunctions().MapBuffer |
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200 #define glUnmapBuffer getGLExtensionFunctions().UnmapBuffer |
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201 |
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202 #endif |