2d3bbd7f17
The prior #if-ery was needlessly confusing; and most of it was redundant anyway. Change-Id: I82da1b38c08b93b9dc2220dd7b15ecb7dcc002af Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
205 lines
7.6 KiB
C
205 lines
7.6 KiB
C
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the demonstration applications of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** BSD License Usage
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** Alternatively, you may use this file under the terms of the BSD license
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** as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef GLEXTENSIONS_H
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#define GLEXTENSIONS_H
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#include <QtOpenGL>
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/*
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Functions resolved:
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glGenFramebuffersEXT
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glGenRenderbuffersEXT
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glBindRenderbufferEXT
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glRenderbufferStorageEXT
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glDeleteFramebuffersEXT
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glDeleteRenderbuffersEXT
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glBindFramebufferEXT
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glFramebufferTexture2DEXT
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glFramebufferRenderbufferEXT
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glCheckFramebufferStatusEXT
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glActiveTexture
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glTexImage3D
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glGenBuffers
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glBindBuffer
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glBufferData
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glDeleteBuffers
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glMapBuffer
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glUnmapBuffer
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*/
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#ifndef APIENTRY
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# define APIENTRY
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#endif
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#ifndef APIENTRYP
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# define APIENTRYP APIENTRY *
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#endif
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#ifndef GL_VERSION_1_2
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#define GL_TEXTURE_3D 0x806F
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#define GL_TEXTURE_WRAP_R 0x8072
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#define GL_CLAMP_TO_EDGE 0x812F
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#define GL_BGRA 0x80E1
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#endif
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#ifndef GL_VERSION_1_3
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#define GL_TEXTURE0 0x84C0
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#define GL_TEXTURE1 0x84C1
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#define GL_TEXTURE2 0x84C2
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#define GL_TEXTURE_CUBE_MAP 0x8513
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#define GL_TEXTURE_CUBE_MAP_POSITIVE_X 0x8515
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//#define GL_TEXTURE_CUBE_MAP_NEGATIVE_X 0x8516
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//#define GL_TEXTURE_CUBE_MAP_POSITIVE_Y 0x8517
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//#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y 0x8518
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//#define GL_TEXTURE_CUBE_MAP_POSITIVE_Z 0x8519
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//#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z 0x851A
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#endif
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#ifndef GL_ARB_vertex_buffer_object
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typedef ptrdiff_t GLsizeiptrARB;
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#endif
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#ifndef GL_VERSION_1_5
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#define GL_ARRAY_BUFFER 0x8892
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#define GL_ELEMENT_ARRAY_BUFFER 0x8893
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#define GL_READ_WRITE 0x88BA
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#define GL_STATIC_DRAW 0x88E4
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#endif
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#ifndef GL_EXT_framebuffer_object
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#define GL_RENDERBUFFER_EXT 0x8D41
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#define GL_FRAMEBUFFER_EXT 0x8D40
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#define GL_FRAMEBUFFER_COMPLETE_EXT 0x8CD5
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#define GL_COLOR_ATTACHMENT0_EXT 0x8CE0
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#define GL_DEPTH_ATTACHMENT_EXT 0x8D00
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#endif
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typedef void (APIENTRY *_glGenFramebuffersEXT) (GLsizei, GLuint *);
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typedef void (APIENTRY *_glGenRenderbuffersEXT) (GLsizei, GLuint *);
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typedef void (APIENTRY *_glBindRenderbufferEXT) (GLenum, GLuint);
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typedef void (APIENTRY *_glRenderbufferStorageEXT) (GLenum, GLenum, GLsizei, GLsizei);
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typedef void (APIENTRY *_glDeleteFramebuffersEXT) (GLsizei, const GLuint*);
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typedef void (APIENTRY *_glDeleteRenderbuffersEXT) (GLsizei, const GLuint*);
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typedef void (APIENTRY *_glBindFramebufferEXT) (GLenum, GLuint);
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typedef void (APIENTRY *_glFramebufferTexture2DEXT) (GLenum, GLenum, GLenum, GLuint, GLint);
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typedef void (APIENTRY *_glFramebufferRenderbufferEXT) (GLenum, GLenum, GLenum, GLuint);
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typedef GLenum (APIENTRY *_glCheckFramebufferStatusEXT) (GLenum);
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typedef void (APIENTRY *_glActiveTexture) (GLenum);
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typedef void (APIENTRY *_glTexImage3D) (GLenum, GLint, GLenum, GLsizei, GLsizei, GLsizei, GLint, GLenum, GLenum, const GLvoid *);
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typedef void (APIENTRY *_glGenBuffers) (GLsizei, GLuint *);
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typedef void (APIENTRY *_glBindBuffer) (GLenum, GLuint);
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typedef void (APIENTRY *_glBufferData) (GLenum, GLsizeiptrARB, const GLvoid *, GLenum);
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typedef void (APIENTRY *_glDeleteBuffers) (GLsizei, const GLuint *);
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typedef void *(APIENTRY *_glMapBuffer) (GLenum, GLenum);
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typedef GLboolean (APIENTRY *_glUnmapBuffer) (GLenum);
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struct GLExtensionFunctions
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{
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bool resolve(const QGLContext *context);
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bool fboSupported();
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bool openGL15Supported(); // the rest: multi-texture, 3D-texture, vertex buffer objects
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_glGenFramebuffersEXT GenFramebuffersEXT;
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_glGenRenderbuffersEXT GenRenderbuffersEXT;
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_glBindRenderbufferEXT BindRenderbufferEXT;
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_glRenderbufferStorageEXT RenderbufferStorageEXT;
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_glDeleteFramebuffersEXT DeleteFramebuffersEXT;
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_glDeleteRenderbuffersEXT DeleteRenderbuffersEXT;
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_glBindFramebufferEXT BindFramebufferEXT;
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_glFramebufferTexture2DEXT FramebufferTexture2DEXT;
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_glFramebufferRenderbufferEXT FramebufferRenderbufferEXT;
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_glCheckFramebufferStatusEXT CheckFramebufferStatusEXT;
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_glActiveTexture ActiveTexture;
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_glTexImage3D TexImage3D;
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_glGenBuffers GenBuffers;
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_glBindBuffer BindBuffer;
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_glBufferData BufferData;
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_glDeleteBuffers DeleteBuffers;
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_glMapBuffer MapBuffer;
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_glUnmapBuffer UnmapBuffer;
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};
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inline GLExtensionFunctions &getGLExtensionFunctions()
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{
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static GLExtensionFunctions funcs;
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return funcs;
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}
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#define glGenFramebuffersEXT getGLExtensionFunctions().GenFramebuffersEXT
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#define glGenRenderbuffersEXT getGLExtensionFunctions().GenRenderbuffersEXT
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#define glBindRenderbufferEXT getGLExtensionFunctions().BindRenderbufferEXT
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#define glRenderbufferStorageEXT getGLExtensionFunctions().RenderbufferStorageEXT
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#define glDeleteFramebuffersEXT getGLExtensionFunctions().DeleteFramebuffersEXT
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#define glDeleteRenderbuffersEXT getGLExtensionFunctions().DeleteRenderbuffersEXT
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#define glBindFramebufferEXT getGLExtensionFunctions().BindFramebufferEXT
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#define glFramebufferTexture2DEXT getGLExtensionFunctions().FramebufferTexture2DEXT
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#define glFramebufferRenderbufferEXT getGLExtensionFunctions().FramebufferRenderbufferEXT
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#define glCheckFramebufferStatusEXT getGLExtensionFunctions().CheckFramebufferStatusEXT
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#define glActiveTexture getGLExtensionFunctions().ActiveTexture
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#define glTexImage3D getGLExtensionFunctions().TexImage3D
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#define glGenBuffers getGLExtensionFunctions().GenBuffers
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#define glBindBuffer getGLExtensionFunctions().BindBuffer
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#define glBufferData getGLExtensionFunctions().BufferData
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#define glDeleteBuffers getGLExtensionFunctions().DeleteBuffers
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#define glMapBuffer getGLExtensionFunctions().MapBuffer
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#define glUnmapBuffer getGLExtensionFunctions().UnmapBuffer
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#endif
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