root/OpenSceneGraph/trunk/src/osg/ColorMatrix.cpp @ 13041

Revision 13041, 1.3 kB (checked in by robert, 2 years ago)

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1/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
2 *
3 * This library is open source and may be redistributed and/or modified under
4 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
5 * (at your option) any later version.  The full license is in LICENSE file
6 * included with this distribution, and on the openscenegraph.org website.
7 *
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11 * OpenSceneGraph Public License for more details.
12*/
13#include <osg/GLExtensions>
14#include <osg/ColorMatrix>
15#include <osg/GL>
16#include <osg/State>
17#include <osg/Notify>
18
19using namespace osg;
20
21ColorMatrix::ColorMatrix()
22{
23}
24
25
26ColorMatrix::~ColorMatrix()
27{
28}
29
30void ColorMatrix::apply(State& state) const
31{
32#if defined(OSG_GL_FIXED_FUNCTION_AVAILABLE) && !defined(OSG_GLES1_AVAILABLE)
33    unsigned int contextID = state.getContextID();
34
35    static bool s_ARB_imaging = isGLExtensionSupported(contextID,"GL_ARB_imaging");
36    if (s_ARB_imaging)
37    {
38        glMatrixMode( GL_COLOR );
39        glLoadMatrix(_matrix.ptr());
40        glMatrixMode( GL_MODELVIEW );
41    }
42#else
43    OSG_NOTICE<<"Warning: ColorMatrix::apply(State&) - not supported."<<std::endl;
44#endif
45}
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