/usr/include/osg/TextureCubeMap is in libopenscenegraph-3.4-dev 3.4.0+dfsg1-4+b3.
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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 | /* -*-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_TEXTURECUBEMAP
#define OSG_TEXTURECUBEMAP 1
#include <osg/Texture>
namespace osg {
/** TextureCubeMap state class which encapsulates OpenGL texture cubemap functionality. */
class OSG_EXPORT TextureCubeMap : public Texture
{
public :
TextureCubeMap();
/** Copy constructor using CopyOp to manage deep vs shallow copy. */
TextureCubeMap(const TextureCubeMap& cm,const CopyOp& copyop=CopyOp::SHALLOW_COPY);
META_StateAttribute(osg, TextureCubeMap,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_CUBE_MAP; }
enum Face {
POSITIVE_X=0,
NEGATIVE_X=1,
POSITIVE_Y=2,
NEGATIVE_Y=3,
POSITIVE_Z=4,
NEGATIVE_Z=5
};
/** Set the texture image for specified face. */
virtual void setImage(unsigned int face, Image* image);
/** Get the texture image for specified face. */
virtual Image* getImage(unsigned int face);
/** Get the const texture image for specified face. */
virtual const Image* getImage(unsigned int face) const;
/** Get the number of images that can be assigned to the Texture. */
virtual unsigned int getNumImages() const { return 6; }
inline unsigned int& getModifiedCount(unsigned int face,unsigned int contextID) const
{
// get the modified count for the current contextID.
return _modifiedCount[face][contextID];
}
/** Set the texture width and height. If width or height are zero then
* the respective size value is calculated from the source image sizes.
*/
inline void setTextureSize(int width, int height) const
{
_textureWidth = width;
_textureHeight = height;
}
void setTextureWidth(int width) { _textureWidth=width; }
void setTextureHeight(int height) { _textureHeight=height; }
virtual int getTextureWidth() const { return _textureWidth; }
virtual int getTextureHeight() const { return _textureHeight; }
virtual int getTextureDepth() const { return 1; }
class OSG_EXPORT SubloadCallback : public Referenced
{
public:
virtual void load(const TextureCubeMap& texture,State& state) const = 0;
virtual void subload(const TextureCubeMap& texture,State& state) const = 0;
};
void setSubloadCallback(SubloadCallback* cb) { _subloadCallback = cb;; }
SubloadCallback* getSubloadCallback() { return _subloadCallback.get(); }
const SubloadCallback* getSubloadCallback() const { return _subloadCallback.get(); }
/** Set the number of mip map levels the texture has been created with.
* Should only be called within an osg::Texuture::apply() and custom OpenGL texture load.
*/
void setNumMipmapLevels(unsigned int num) const { _numMipmapLevels=num; }
/** Get the number of mip map levels the texture has been created with. */
unsigned int getNumMipmapLevels() const { return _numMipmapLevels; }
/** Copies a two-dimensional texture subimage, as per
* glCopyTexSubImage2D. Updates a portion of an existing OpenGL
* texture object from the current OpenGL background framebuffer
* contents at position \a x, \a y with width \a width and height
* \a height. Loads framebuffer data into the texture using offsets
* \a xoffset and \a yoffset. \a width and \a height must be powers
* of two. */
void copyTexSubImageCubeMap(State& state, int face, int xoffset, int yoffset, int x, int y, int width, int height );
/** On first apply (unless already compiled), create the mipmapped
* texture and bind it. Subsequent apply will simple bind to texture.
*/
virtual void apply(State& state) const;
protected :
virtual ~TextureCubeMap();
bool imagesValid() const;
virtual void computeInternalFormat() const;
void allocateMipmap(State& state) const;
ref_ptr<Image> _images[6];
// subloaded images can have different texture and image sizes.
mutable GLsizei _textureWidth, _textureHeight;
// number of mip map levels the texture has been created with,
mutable GLsizei _numMipmapLevels;
ref_ptr<SubloadCallback> _subloadCallback;
typedef buffered_value<unsigned int> ImageModifiedCount;
mutable ImageModifiedCount _modifiedCount[6];
};
}
#endif
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