/usr/include/osg/TexMat is in libopenscenegraph-dev 3.2.1-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 | /* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* OpenSceneGraph Public License for more details.
*/
#ifndef OSG_TEXMAT
#define OSG_TEXMAT 1
#include <osg/StateAttribute>
#include <osg/Matrix>
namespace osg {
/** A texture matrix state class that encapsulates OpenGL texture matrix
* functionality. */
class OSG_EXPORT TexMat : public StateAttribute
{
public :
TexMat();
TexMat(const Matrix& matrix):_matrix(matrix),_scaleByTextureRectangleSize(false) {}
/** Copy constructor using CopyOp to manage deep vs shallow copy. */
TexMat(const TexMat& texmat,const CopyOp& copyop=CopyOp::SHALLOW_COPY):
StateAttribute(texmat,copyop),
_matrix(texmat._matrix),
_scaleByTextureRectangleSize(texmat._scaleByTextureRectangleSize) {}
META_StateAttribute(osg, TexMat, TEXMAT);
virtual bool isTextureAttribute() const { return true; }
/** Return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs. */
virtual int compare(const StateAttribute& sa) const
{
// Check for equal types, then create the rhs variable
// used by the COMPARE_StateAttribute_Parameter macros below.
COMPARE_StateAttribute_Types(TexMat,sa)
// Compare each parameter in turn against the rhs.
COMPARE_StateAttribute_Parameter(_matrix)
return 0; // Passed all the above comparison macros, so must be equal.
}
/** Set the texture matrix */
inline void setMatrix(const Matrix& matrix) { _matrix = matrix; }
/** Get the texture matrix */
inline Matrix& getMatrix() { return _matrix; }
/** Get the const texture matrix */
inline const Matrix& getMatrix() const { return _matrix; }
/** Switch on/off the post scaling of the TexMat matrix by the size of the last applied texture rectangle.
* Use a TexMat alongside a TextureRectangle with this scaling applied allows one to treat a TextureRectnagles texture coordinate
* range as if it were the usual non dimensional 0.0 to 1.0 range.
* Note, the TexMat matrix itself is not modified by the post scaling, its purely an operation passed to OpenGL to do the post scaling once the
* the TexMat matrix has been loaded.*/
void setScaleByTextureRectangleSize(bool flag) { _scaleByTextureRectangleSize = flag; }
/** Get whether the post scaling of the TexMat matrix, by the size of the last applied texture rectangle, is switched on/off.*/
bool getScaleByTextureRectangleSize() const { return _scaleByTextureRectangleSize; }
/** Apply texture matrix to OpenGL state. */
virtual void apply(State& state) const;
protected:
virtual ~TexMat( void );
Matrix _matrix;
bool _scaleByTextureRectangleSize;
};
}
#endif
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