/usr/include/osg/TextureBuffer is in libopenscenegraph-3.4-dev 3.4.1+dfsg1-3.
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 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 | /* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2013 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.
*/
// -*-c++-*-
#ifndef OSG_TEXTUREBUFFEROBJECT
#define OSG_TEXTUREBUFFEROBJECT 1
#include <osg/Texture>
#include <osg/BufferObject>
namespace osg {
/** Encapsulates OpenGL texture buffer functionality.
*/
class OSG_EXPORT TextureBuffer : public Texture
{
public :
TextureBuffer();
TextureBuffer(Image* image);
/** Copy constructor using CopyOp to manage deep vs shallow copy. */
TextureBuffer(const TextureBuffer& text,const CopyOp& copyop=CopyOp::SHALLOW_COPY);
META_StateAttribute(osg, TextureBuffer, TEXTURE);
/** Return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs. */
virtual int compare(const StateAttribute& rhs) const;
virtual GLenum getTextureTarget() const { return GL_TEXTURE_BUFFER; }
/** Sets the texture image. */
void setImage(Image* image);
/** Gets the texture image. */
Image* getImage() { return _image.get(); }
/** Gets the const texture image. */
inline const Image* getImage() const { return _image.get(); }
inline unsigned int& getModifiedCount(unsigned int contextID) const
{
// get the modified count for the current contextID.
return _modifiedCount[contextID];
}
/** Sets the texture image, ignoring face. */
virtual void setImage(unsigned int, Image* image) { setImage(image); }
/** Gets the texture image, ignoring face. */
virtual Image* getImage(unsigned int) { return _image.get(); }
/** Gets the const texture image, ignoring face. */
virtual const Image* getImage(unsigned int) const { return _image.get(); }
/** Gets the number of images that can be assigned to the Texture. */
virtual unsigned int getNumImages() const { return 1; }
/** Sets the texture width. If width is zero, calculate the value
* from the source image width. */
inline void setTextureWidth(int width) { _textureWidth = width; }
/** Gets the texture width. */
virtual int getTextureWidth() const { return _textureWidth; }
virtual int getTextureHeight() const { return 1; }
virtual int getTextureDepth() const { return 1; }
inline void setUsageHint( GLenum usageHint ) { _usageHint=usageHint; }
inline GLenum getUsageHint() const { return _usageHint; }
virtual void allocateMipmap(State& /*state*/) const {};
/** Bind the texture buffer.*/
virtual void apply(State& state) const;
/** Bind buffer to different target. */
void bindBufferAs(unsigned int contextID, GLenum target);
void unbindBufferAs(unsigned int contextID, GLenum target);
protected :
virtual ~TextureBuffer();
virtual void computeInternalFormat() const;
ref_ptr<Image> _image;
mutable GLsizei _textureWidth;
GLenum _usageHint;
typedef buffered_value<unsigned int> ImageModifiedCount;
mutable ImageModifiedCount _modifiedCount;
class TextureBufferObject : public osg::Referenced
{
public:
TextureBufferObject(unsigned int contextID, GLenum usageHint) :
_id(0),
_usageHint(usageHint)
{
_extensions = osg::GLExtensions::Get(contextID, true);
}
void bindBuffer(GLenum target);
void unbindBuffer(GLenum target);
void texBuffer(GLenum internalFormat);
void bufferData( osg::Image* image );
void bufferSubData( osg::Image* image );
public:
GLuint _id;
GLenum _usageHint;
osg::GLExtensions* _extensions;
};
typedef osg::buffered_object<osg::ref_ptr<TextureBufferObject> > TextureBufferObjectList;
mutable TextureBufferObjectList _textureBufferObjects;
};
}
#endif
|