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color_cast.hh
1 /*===========================================================================*\
2 * *
3 * OpenMesh *
4 * Copyright (C) 2001-2014 by Computer Graphics Group, RWTH Aachen *
5 * www.openmesh.org *
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16 * If other files instantiate templates or use macros *
17 * or inline functions from this file, or you compile this file and *
18 * link it with other files to produce an executable, this file does *
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33 \*===========================================================================*/
34
35 /*===========================================================================*\
36 * *
37 * $Revision: 990 $ *
38 * $Date: 2014-02-05 10:01:07 +0100 (Mi, 05. Feb 2014) $ *
39 * *
40 \*===========================================================================*/
41
42 #ifndef OPENMESH_KERNEL_OSG_COLOR_CAST_HH
43 #define OPENMESH_KERNEL_OSG_COLOR_CAST_HH
44
45 #include <algorithm>
46 #include <OpenMesh/Core/Utils/color_cast.hh>
47 #include <OpenSG/OSGGeometry.h>
48
49 namespace OpenMesh {
50
53 template <>
54 struct color_caster<osg::Color3ub,osg::Color3f>
55 {
56 typedef osg::Color3ub return_type;
57 typedef unsigned char ub;
58
59 inline static return_type cast(const osg::Color3f& _src)
60 {
61 return return_type( (ub)std::min((_src[0]* 255.0f + 0.5f),255.0f),
62 (ub)std::min((_src[1]* 255.0f + 0.5f),255.0f),
63 (ub)std::min((_src[2]* 255.0f + 0.5f),255.0f) );
64 }
65 };
66
69 template <>
70 struct color_caster<osg::Color3f,osg::Color3ub>
71 {
72 typedef osg::Color3f return_type;
73
74 inline static return_type cast(const osg::Color3ub& _src)
75 {
76 return return_type( (float)(_src[0] / 255.0f ),
77 (float)(_src[1] / 255.0f ),
78 (float)(_src[2] / 255.0f ) );
79 }
80 };
81
82 } // namespace OpenMesh
83
84 #endif // OPENMESH_KERNEL_OSG_COLOR_CAST_HH