Oolite
1.91.0.7644-241112-7f5034b
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src
Core
OOMacroOpenGL.h
Go to the documentation of this file.
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/*
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OOMacroOpenGL.h
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Under Mac OS X, OpenGL performance can be improved somewhat by using macros
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that call through to a function table directly, avoiding calls to functions
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that just look up the current context and pass their parameters through to
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a context-specific implementation function.
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This header abstracts that behaviour for cross-platformity.
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Oolite
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Copyright (C) 2004-2013 Giles C Williams and contributors
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program 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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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA.
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*/
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#if OOLITE_MAC_OS_X && !defined(OOLITE_NO_CGL_MACRO)
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#if MAC_OS_X_VERSION_10_4 <= MAC_OS_X_VERSION_MAX_ALLOWED
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#define CGL_MACRO_CACHE_RENDERER
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#import <OpenGL/CGLMacro.h>
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#define OO_ENTER_OPENGL CGL_MACRO_DECLARE_VARIABLES
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#else
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#import <OpenGL/CGLMacro.h>
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#define OO_ENTER_OPENGL() CGLContextObj CGL_MACRO_CONTEXT = CGLGetCurrentContext(); \
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#endif
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#else
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// Not OS X
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#define OO_ENTER_OPENGL() do {} while (0)
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#endif
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