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Diffstat (limited to 'examples/graphicsview/boxes/glextensions.h')
| -rw-r--r-- | examples/graphicsview/boxes/glextensions.h | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/examples/graphicsview/boxes/glextensions.h b/examples/graphicsview/boxes/glextensions.h new file mode 100644 index 0000000000..54de548cd7 --- /dev/null +++ b/examples/graphicsview/boxes/glextensions.h @@ -0,0 +1,202 @@ +/**************************************************************************** +** +** 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 demonstration applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef GLEXTENSIONS_H +#define GLEXTENSIONS_H + +#include <QtOpenGL> + +/* +Functions resolved: + +glGenFramebuffersEXT +glGenRenderbuffersEXT +glBindRenderbufferEXT +glRenderbufferStorageEXT +glDeleteFramebuffersEXT +glDeleteRenderbuffersEXT +glBindFramebufferEXT +glFramebufferTexture2DEXT +glFramebufferRenderbufferEXT +glCheckFramebufferStatusEXT + +glActiveTexture +glTexImage3D + +glGenBuffers +glBindBuffer +glBufferData +glDeleteBuffers +glMapBuffer +glUnmapBuffer +*/ + +#ifndef Q_WS_MAC +# ifndef APIENTRYP +# ifdef APIENTRY +# define APIENTRYP APIENTRY * +# else +# define APIENTRY +# define APIENTRYP * +# endif +# endif +#else +# define APIENTRY +# define APIENTRYP * +#endif + +#ifndef GL_VERSION_1_2 +#define GL_TEXTURE_3D 0x806F +#define GL_TEXTURE_WRAP_R 0x8072 +#define GL_CLAMP_TO_EDGE 0x812F +#define GL_BGRA 0x80E1 +#endif + +#ifndef GL_VERSION_1_3 +#define GL_TEXTURE0 0x84C0 +#define GL_TEXTURE1 0x84C1 +#define GL_TEXTURE2 0x84C2 +#define GL_TEXTURE_CUBE_MAP 0x8513 +#define GL_TEXTURE_CUBE_MAP_POSITIVE_X 0x8515 +//#define GL_TEXTURE_CUBE_MAP_NEGATIVE_X 0x8516 +//#define GL_TEXTURE_CUBE_MAP_POSITIVE_Y 0x8517 +//#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y 0x8518 +//#define GL_TEXTURE_CUBE_MAP_POSITIVE_Z 0x8519 +//#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z 0x851A +#endif + +#ifndef GL_ARB_vertex_buffer_object +typedef ptrdiff_t GLsizeiptrARB; +#endif + +#ifndef GL_VERSION_1_5 +#define GL_ARRAY_BUFFER 0x8892 +#define GL_ELEMENT_ARRAY_BUFFER 0x8893 +#define GL_READ_WRITE 0x88BA +#define GL_STATIC_DRAW 0x88E4 +#endif + +#ifndef GL_EXT_framebuffer_object +#define GL_RENDERBUFFER_EXT 0x8D41 +#define GL_FRAMEBUFFER_EXT 0x8D40 +#define GL_FRAMEBUFFER_COMPLETE_EXT 0x8CD5 +#define GL_COLOR_ATTACHMENT0_EXT 0x8CE0 +#define GL_DEPTH_ATTACHMENT_EXT 0x8D00 +#endif + +typedef void (APIENTRY *_glGenFramebuffersEXT) (GLsizei, GLuint *); +typedef void (APIENTRY *_glGenRenderbuffersEXT) (GLsizei, GLuint *); +typedef void (APIENTRY *_glBindRenderbufferEXT) (GLenum, GLuint); +typedef void (APIENTRY *_glRenderbufferStorageEXT) (GLenum, GLenum, GLsizei, GLsizei); +typedef void (APIENTRY *_glDeleteFramebuffersEXT) (GLsizei, const GLuint*); +typedef void (APIENTRY *_glDeleteRenderbuffersEXT) (GLsizei, const GLuint*); +typedef void (APIENTRY *_glBindFramebufferEXT) (GLenum, GLuint); +typedef void (APIENTRY *_glFramebufferTexture2DEXT) (GLenum, GLenum, GLenum, GLuint, GLint); +typedef void (APIENTRY *_glFramebufferRenderbufferEXT) (GLenum, GLenum, GLenum, GLuint); +typedef GLenum (APIENTRY *_glCheckFramebufferStatusEXT) (GLenum); + +typedef void (APIENTRY *_glActiveTexture) (GLenum); +typedef void (APIENTRY *_glTexImage3D) (GLenum, GLint, GLenum, GLsizei, GLsizei, GLsizei, GLint, GLenum, GLenum, const GLvoid *); + +typedef void (APIENTRY *_glGenBuffers) (GLsizei, GLuint *); +typedef void (APIENTRY *_glBindBuffer) (GLenum, GLuint); +typedef void (APIENTRY *_glBufferData) (GLenum, GLsizeiptrARB, const GLvoid *, GLenum); +typedef void (APIENTRY *_glDeleteBuffers) (GLsizei, const GLuint *); +typedef void *(APIENTRY *_glMapBuffer) (GLenum, GLenum); +typedef GLboolean (APIENTRY *_glUnmapBuffer) (GLenum); + +struct GLExtensionFunctions +{ + bool resolve(const QGLContext *context); + + bool fboSupported(); + bool openGL15Supported(); // the rest: multi-texture, 3D-texture, vertex buffer objects + + _glGenFramebuffersEXT GenFramebuffersEXT; + _glGenRenderbuffersEXT GenRenderbuffersEXT; + _glBindRenderbufferEXT BindRenderbufferEXT; + _glRenderbufferStorageEXT RenderbufferStorageEXT; + _glDeleteFramebuffersEXT DeleteFramebuffersEXT; + _glDeleteRenderbuffersEXT DeleteRenderbuffersEXT; + _glBindFramebufferEXT BindFramebufferEXT; + _glFramebufferTexture2DEXT FramebufferTexture2DEXT; + _glFramebufferRenderbufferEXT FramebufferRenderbufferEXT; + _glCheckFramebufferStatusEXT CheckFramebufferStatusEXT; + + _glActiveTexture ActiveTexture; + _glTexImage3D TexImage3D; + + _glGenBuffers GenBuffers; + _glBindBuffer BindBuffer; + _glBufferData BufferData; + _glDeleteBuffers DeleteBuffers; + _glMapBuffer MapBuffer; + _glUnmapBuffer UnmapBuffer; +}; + +inline GLExtensionFunctions &getGLExtensionFunctions() +{ + static GLExtensionFunctions funcs; + return funcs; +} + +#define glGenFramebuffersEXT getGLExtensionFunctions().GenFramebuffersEXT +#define glGenRenderbuffersEXT getGLExtensionFunctions().GenRenderbuffersEXT +#define glBindRenderbufferEXT getGLExtensionFunctions().BindRenderbufferEXT +#define glRenderbufferStorageEXT getGLExtensionFunctions().RenderbufferStorageEXT +#define glDeleteFramebuffersEXT getGLExtensionFunctions().DeleteFramebuffersEXT +#define glDeleteRenderbuffersEXT getGLExtensionFunctions().DeleteRenderbuffersEXT +#define glBindFramebufferEXT getGLExtensionFunctions().BindFramebufferEXT +#define glFramebufferTexture2DEXT getGLExtensionFunctions().FramebufferTexture2DEXT +#define glFramebufferRenderbufferEXT getGLExtensionFunctions().FramebufferRenderbufferEXT +#define glCheckFramebufferStatusEXT getGLExtensionFunctions().CheckFramebufferStatusEXT + +#define glActiveTexture getGLExtensionFunctions().ActiveTexture +#define glTexImage3D getGLExtensionFunctions().TexImage3D + +#define glGenBuffers getGLExtensionFunctions().GenBuffers +#define glBindBuffer getGLExtensionFunctions().BindBuffer +#define glBufferData getGLExtensionFunctions().BufferData +#define glDeleteBuffers getGLExtensionFunctions().DeleteBuffers +#define glMapBuffer getGLExtensionFunctions().MapBuffer +#define glUnmapBuffer getGLExtensionFunctions().UnmapBuffer + +#endif |