49869f2a7d
Change-Id: Ifa47cec0e454228d33c917c0baa6d0686955af5a Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
282 lines
8.4 KiB
C
282 lines
8.4 KiB
C
/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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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 Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QOPENGL_H
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#define QOPENGL_H
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#include <QtCore/qglobal.h>
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#ifndef QT_NO_OPENGL
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// Windows always needs this to ensure that APIENTRY gets defined
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#if defined(Q_OS_WIN)
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# include <QtCore/qt_windows.h>
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#endif
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// Note: Mac OSX is a "controlled platform" for OpenGL ABI so we
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// use the system provided headers there. Controlled means that the
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// headers always match the actual driver implementation so there
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// is no possibility of drivers exposing additional functionality
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// from the system headers. Also it means that the vendor can
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// (and does) make different choices about some OpenGL types. For
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// e.g. Apple uses void* for GLhandleARB whereas other platforms
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// use unsigned int.
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//
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// For the "uncontrolled" Windows and Linux platforms we use the
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// official Khronos headers. On these platforms this gives
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// access to additional functionality the drivers may expose but
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// which the system headers do not.
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#if defined(QT_OPENGL_ES_2)
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# if defined(Q_OS_MAC)
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# include <OpenGLES/ES2/gl.h>
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# include <OpenGLES/ES2/glext.h>
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/*
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OES_EGL_image_external is not included in the Apple provided
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system headers yet, but we define the missing typedef so that
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the qopenglextensions.cpp code will magically work once Apple
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include the extension in their drivers.
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*/
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typedef void* GLeglImageOES;
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# else // "uncontrolled" platforms
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# include <GLES2/gl2.h>
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/*
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Some GLES2 implementations (like the one on Harmattan) are missing the
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typedef for GLchar. Work around it here by adding it. The Kkronos headers
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specify GLChar as a typedef to char, so if an implementation already
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provides it, then this doesn't do any harm.
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*/
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typedef char GLchar;
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# include <QtGui/qopengles2ext.h>
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# ifndef GL_DOUBLE
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# define GL_DOUBLE GL_FLOAT
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# endif
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# ifndef GLdouble
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typedef GLfloat GLdouble;
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# endif
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# endif // Q_OS_MAC
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#else
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# if defined(Q_OS_MAC)
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# include <OpenGL/gl.h>
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# if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7
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# define GL_DO_NOT_WARN_IF_MULTI_GL_VERSION_HEADERS_INCLUDED
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# include <OpenGL/gl3.h>
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# endif
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# include <OpenGL/glext.h>
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# else
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# define GL_GLEXT_LEGACY // Prevents GL/gl.h from #including system glext.h
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# include <GL/gl.h>
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# include <QtGui/qopenglext.h>
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# endif // Q_OS_MAC
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#endif
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// Desktops, apart from Mac OS X prior to 10.7 can support OpenGL 3
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// and desktops apart from Mac can support OpenGL 4
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#if !defined(QT_OPENGL_ES_2)
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# if !defined(Q_OS_MAC) || (defined(Q_OS_MAC) && MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7)
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# define QT_OPENGL_3
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# define QT_OPENGL_3_2
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# endif
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#if !defined(Q_OS_MAC)
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# define QT_OPENGL_4
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# define QT_OPENGL_4_3
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#endif
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#endif
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QT_BEGIN_NAMESPACE
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// When all else fails we provide sensible fallbacks - this is needed to
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// allow compilation on OS X 10.6
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#if !defined(QT_OPENGL_ES_2)
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// OS X 10.6 doesn't define these which are needed below
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// OS X 10.7 and later defien them in gl3.h
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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 GLAPI
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#define GLAPI extern
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#endif
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// This block is copied from glext.h and defines the types needed by
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// a few extension classes.
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#include <stddef.h>
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#ifndef GL_VERSION_2_0
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/* GL type for program/shader text */
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typedef char GLchar;
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#endif
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#ifndef GL_VERSION_1_5
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/* GL types for handling large vertex buffer objects */
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typedef ptrdiff_t GLintptr;
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typedef ptrdiff_t GLsizeiptr;
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#endif
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#ifndef GL_ARB_vertex_buffer_object
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/* GL types for handling large vertex buffer objects */
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typedef ptrdiff_t GLintptrARB;
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typedef ptrdiff_t GLsizeiptrARB;
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#endif
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#ifndef GL_ARB_shader_objects
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/* GL types for program/shader text and shader object handles */
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typedef char GLcharARB;
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typedef unsigned int GLhandleARB;
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#endif
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/* GL type for "half" precision (s10e5) float data in host memory */
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#ifndef GL_ARB_half_float_pixel
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typedef unsigned short GLhalfARB;
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#endif
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#ifndef GL_NV_half_float
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typedef unsigned short GLhalfNV;
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#endif
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#ifndef GLEXT_64_TYPES_DEFINED
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/* This code block is duplicated in glxext.h, so must be protected */
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#define GLEXT_64_TYPES_DEFINED
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/* Define int32_t, int64_t, and uint64_t types for UST/MSC */
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/* (as used in the GL_EXT_timer_query extension). */
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#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
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#include <inttypes.h>
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#elif defined(__sun__) || defined(__digital__)
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#include <inttypes.h>
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#if defined(__STDC__)
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#if defined(__arch64__) || defined(_LP64)
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typedef long int int64_t;
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typedef unsigned long int uint64_t;
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#else
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typedef long long int int64_t;
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typedef unsigned long long int uint64_t;
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#endif /* __arch64__ */
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#endif /* __STDC__ */
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#elif defined( __VMS ) || defined(__sgi)
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#include <inttypes.h>
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#elif defined(__SCO__) || defined(__USLC__)
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#include <stdint.h>
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#elif defined(__UNIXOS2__) || defined(__SOL64__)
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typedef long int int32_t;
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typedef long long int int64_t;
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typedef unsigned long long int uint64_t;
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#elif defined(_WIN32) && defined(__GNUC__)
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#include <stdint.h>
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#elif defined(_WIN32)
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typedef __int32 int32_t;
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typedef __int64 int64_t;
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typedef unsigned __int64 uint64_t;
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#else
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/* Fallback if nothing above works */
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#include <inttypes.h>
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#endif
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#endif
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#ifndef GL_EXT_timer_query
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typedef int64_t GLint64EXT;
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typedef uint64_t GLuint64EXT;
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#endif
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#ifndef GL_ARB_sync
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typedef int64_t GLint64;
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typedef uint64_t GLuint64;
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typedef struct __GLsync *GLsync;
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#endif
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#ifndef GL_ARB_cl_event
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/* These incomplete types let us declare types compatible with OpenCL's cl_context and cl_event */
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struct _cl_context;
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struct _cl_event;
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#endif
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#ifndef GL_ARB_debug_output
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typedef void (APIENTRY *GLDEBUGPROCARB)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,GLvoid *userParam);
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#endif
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#ifndef GL_AMD_debug_output
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typedef void (APIENTRY *GLDEBUGPROCAMD)(GLuint id,GLenum category,GLenum severity,GLsizei length,const GLchar *message,GLvoid *userParam);
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#endif
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#ifndef GL_KHR_debug
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typedef void (APIENTRY *GLDEBUGPROC)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,GLvoid *userParam);
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#endif
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#ifndef GL_NV_vdpau_interop
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typedef GLintptr GLvdpauSurfaceNV;
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#endif
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// End of block copied from glext.h
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#endif
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// Types that aren't defined in all system's gl.h files.
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typedef ptrdiff_t qopengl_GLintptr;
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typedef ptrdiff_t qopengl_GLsizeiptr;
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#if defined(APIENTRY) && !defined(QOPENGLF_APIENTRY)
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# define QOPENGLF_APIENTRY APIENTRY
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#endif
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# ifndef QOPENGLF_APIENTRYP
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# ifdef QOPENGLF_APIENTRY
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# define QOPENGLF_APIENTRYP QOPENGLF_APIENTRY *
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# else
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# define QOPENGLF_APIENTRY
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# define QOPENGLF_APIENTRYP *
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# endif
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# endif
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QT_END_NAMESPACE
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#endif // QT_NO_OPENGL
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#endif // QOPENGL_H
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