248 lines
6.8 KiB
C++
248 lines
6.8 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#ifndef OSG_GL
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#define OSG_GL 1
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#include <osg/Config>
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#include <osg/Export>
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#if defined(OSG_GLES1_AVAILABLE)
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#ifdef __APPLE__
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//if its apple include the target defines so we can check for IOS
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#include "TargetConditionals.h"
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#include <OpenGLES/ES1/gl.h>
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#else
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#include <GLES/gl.h>
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#endif
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#elif defined(OSG_GLES2_AVAILABLE)
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#ifdef __APPLE__
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//if its apple include the target defines so we can check for IOS
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#include "TargetConditionals.h"
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#include <OpenGLES/ES2/gl.h>
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#else
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#include <GLES2/gl2.h>
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#endif
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#else
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#ifndef WIN32
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// Required for compatibility with glext.h sytle function definitions of
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// OpenGL extensions, such as in src/osg/Point.cpp.
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#ifndef APIENTRY
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#define APIENTRY
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#endif
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#else // WIN32
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#if defined(__CYGWIN__) || defined(__MINGW32__)
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#ifndef APIENTRY
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#define GLUT_APIENTRY_DEFINED
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#define APIENTRY __stdcall
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#endif
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// XXX This is from Win32's <windef.h>
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#ifndef CALLBACK
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#define CALLBACK __stdcall
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#endif
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#else // ! __CYGWIN__
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// Under Windows avoid including <windows.h>
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// to avoid name space pollution, but Win32's <GL/gl.h>
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// needs APIENTRY and WINGDIAPI defined properly.
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// XXX This is from Win32's <windef.h>
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#ifndef APIENTRY
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#define GLUT_APIENTRY_DEFINED
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#if (_MSC_VER >= 800) || defined(_STDCALL_SUPPORTED)
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#define WINAPI __stdcall
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#define APIENTRY WINAPI
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#else
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#define APIENTRY
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#endif
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#endif
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// XXX This is from Win32's <windef.h>
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#ifndef CALLBACK
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#if (_MSC_VER >= 800) || defined(_STDCALL_SUPPORTED)
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#define CALLBACK __stdcall
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#else
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#define CALLBACK
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#endif
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#endif
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#endif // __CYGWIN__
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// XXX This is from Win32's <wingdi.h> and <winnt.h>
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#ifndef WINGDIAPI
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#define GLUT_WINGDIAPI_DEFINED
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#define DECLSPEC_IMPORT __declspec(dllimport)
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#define WINGDIAPI DECLSPEC_IMPORT
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#endif
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// XXX This is from Win32's <ctype.h>
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#if !defined(_WCHAR_T_DEFINED) && !(defined(__GNUC__)&&((__GNUC__ == 3)||(__GNUC__ == 4)))
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typedef unsigned short wchar_t;
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#define _WCHAR_T_DEFINED
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#endif
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#endif // WIN32
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#if defined(OSG_GL3_AVAILABLE)
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#define GL3_PROTOTYPES 1
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#ifdef __APPLE__
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#include <OpenGL/OpenGL.h>
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#include <OpenGL/gl3.h>
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#else
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#include <GL3/gl3.h>
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#endif
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#define GLint64EXT GLint64
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#define GLuint64EXT GLuint64
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#define GL_BGRA_EXT GL_BGRA
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#else
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#ifndef __gl_h_
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#ifdef __APPLE__
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#include <OpenGL/gl.h>
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#else
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#include <GL/gl.h>
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// hack required to avoid conflicts with Qt
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// Qt expects GLdouble to be a macro ?!
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#ifndef GLdouble
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#define GLdouble double
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#endif
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#endif
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#endif
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#endif
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#ifndef GL_APIENTRY
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#define GL_APIENTRY APIENTRY
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#endif // GL_APIENTRY
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#endif
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#if !defined(GL_EXT_timer_query) && !defined(OSG_GL3_AVAILABLE)
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#ifdef _WIN32
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typedef __int64 GLint64EXT;
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typedef unsigned __int64 GLuint64EXT;
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#else
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typedef long long int GLint64EXT;
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typedef unsigned long long int GLuint64EXT;
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#endif
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#endif
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#ifdef OSG_GL_MATRICES_AVAILABLE
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inline void glLoadMatrix(const float* mat) { glLoadMatrixf(static_cast<const GLfloat*>(mat)); }
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inline void glMultMatrix(const float* mat) { glMultMatrixf(static_cast<const GLfloat*>(mat)); }
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#ifdef OSG_GLES1_AVAILABLE
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inline void glLoadMatrix(const double* mat)
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{
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GLfloat flt_mat[16];
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for(unsigned int i=0;i<16;++i) flt_mat[i] = mat[i];
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glLoadMatrixf(flt_mat);
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}
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inline void glMultMatrix(const double* mat)
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{
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GLfloat flt_mat[16];
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for(unsigned int i=0;i<16;++i) flt_mat[i] = mat[i];
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glMultMatrixf(flt_mat);
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}
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#else
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inline void glLoadMatrix(const double* mat) { glLoadMatrixd(static_cast<const GLdouble*>(mat)); }
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inline void glMultMatrix(const double* mat) { glMultMatrixd(static_cast<const GLdouble*>(mat)); }
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#endif
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#endif
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// add defines for OpenGL targets that don't define them, just to ease compatibility across targets
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#ifndef GL_DOUBLE
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#define GL_DOUBLE 0x140A
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typedef double GLdouble;
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#endif
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#ifndef GL_INT
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#define GL_INT 0x1404
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#endif
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#ifndef GL_UNSIGNED_INT
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#define GL_UNSIGNED_INT 0x1405
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#endif
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#ifndef GL_NONE
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// OpenGL ES1 doesn't provide GL_NONE
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#define GL_NONE 0x0
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#endif
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#if defined(OSG_GLES1_AVAILABLE) || defined(OSG_GLES2_AVAILABLE)
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//GLES defines (OES)
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#define GL_RGB8_OES 0x8051
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#define GL_RGBA8_OES 0x8058
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#endif
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#if defined(OSG_GLES1_AVAILABLE) || defined(OSG_GLES2_AVAILABLE) || defined(OSG_GL3_AVAILABLE)
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#define GL_POLYGON 0x0009
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#define GL_QUADS 0x0007
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#define GL_QUAD_STRIP 0x0008
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#endif
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#if defined(OSG_GL3_AVAILABLE)
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#define GL_LUMINANCE 0x1909
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#define GL_LUMINANCE_ALPHA 0x190A
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#endif
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#ifdef OSG_GL1_AVAILABLE
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#define OSG_GL1_FEATURES true
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#else
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#define OSG_GL1_FEATURES false
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#endif
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#ifdef OSG_GL2_AVAILABLE
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#define OSG_GL2_FEATURES true
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#else
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#define OSG_GL2_FEATURES false
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#endif
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#ifdef OSG_GL3_AVAILABLE
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#define OSG_GL3_FEATURES true
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#else
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#define OSG_GL3_FEATURES false
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#endif
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#ifdef OSG_GLES1_AVAILABLE
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#define OSG_GLES1_FEATURES true
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#else
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#define OSG_GLES1_FEATURES false
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#endif
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#ifdef OSG_GLES2_AVAILABLE
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#define OSG_GLES2_FEATURES true
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#else
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#define OSG_GLES2_FEATURES false
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#endif
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#endif // __osgGL_h
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