/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2005 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_TEXTURE #define OSG_TEXTURE 1 #include #include #include #include #include #include #include #include // If not defined by gl.h use the definition found in: // http://oss.sgi.com/projects/ogl-sample/registry/EXT/texture_filter_anisotropic.txt #ifndef GL_TEXTURE_MAX_ANISOTROPY_EXT #define GL_TEXTURE_MAX_ANISOTROPY_EXT 0x84FE #endif #ifndef GL_ARB_texture_compression #define GL_COMPRESSED_ALPHA_ARB 0x84E9 #define GL_COMPRESSED_LUMINANCE_ARB 0x84EA #define GL_COMPRESSED_LUMINANCE_ALPHA_ARB 0x84EB #define GL_COMPRESSED_INTENSITY_ARB 0x84EC #define GL_COMPRESSED_RGB_ARB 0x84ED #define GL_COMPRESSED_RGBA_ARB 0x84EE #define GL_TEXTURE_COMPRESSION_HINT_ARB 0x84EF #define GL_TEXTURE_COMPRESSED_ARB 0x86A1 #define GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB 0x86A2 #define GL_COMPRESSED_TEXTURE_FORMATS_ARB 0x86A3 #endif #ifndef GL_TEXTURE_COMPRESSED_IMAGE_SIZE_ARB #define GL_TEXTURE_COMPRESSED_IMAGE_SIZE_ARB 0x86A0 #endif #ifndef GL_EXT_texture_compression_s3tc #define GL_COMPRESSED_RGB_S3TC_DXT1_EXT 0x83F0 #define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT 0x83F1 #define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT 0x83F2 #define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3 #endif #ifndef GL_ARB_INTERNAL_TEXTURE_FORMAT #define GL_RGBA32F_ARB 0x8814 #define GL_RGB32F_ARB 0x8815 #define GL_ALPHA32F_ARB 0x8816 #define GL_INTENSITY32F_ARB 0x8817 #define GL_LUMINANCE32F_ARB 0x8818 #define GL_LUMINANCE_ALPHA32F_ARB 0x8819 #define GL_RGBA16F_ARB 0x881A #define GL_RGB16F_ARB 0x881B #define GL_ALPHA16F_ARB 0x881C #define GL_INTENSITY16F_ARB 0x881D #define GL_LUMINANCE16F_ARB 0x881E #define GL_LUMINANCE_ALPHA16F_ARB 0x881F #endif #ifndef GL_ARB_PIXEL_DATA #define GL_HALF_FLOAT_ARB 0x140B #endif #ifndef GL_NV_texture_shader #define GL_HILO_NV 0x86F4 #define GL_DSDT_NV 0x86F5 #define GL_DSDT_MAG_NV 0x86F6 #define GL_DSDT_MAG_VIB_NV 0x86F7 #define GL_HILO16_NV 0x86F8 #define GL_SIGNED_HILO_NV 0x86F9 #define GL_SIGNED_HILO16_NV 0x86FA #define GL_SIGNED_RGBA_NV 0x86FB #define GL_SIGNED_RGBA8_NV 0x86FC #define GL_SIGNED_RGB_NV 0x86FE #define GL_SIGNED_RGB8_NV 0x86FF #define GL_SIGNED_LUMINANCE_NV 0x8701 #define GL_SIGNED_LUMINANCE8_NV 0x8702 #define GL_SIGNED_LUMINANCE_ALPHA_NV 0x8703 #define GL_SIGNED_LUMINANCE8_ALPHA8_NV 0x8704 #define GL_SIGNED_ALPHA_NV 0x8705 #define GL_SIGNED_ALPHA8_NV 0x8706 #define GL_SIGNED_INTENSITY_NV 0x8707 #define GL_SIGNED_INTENSITY8_NV 0x8708 #define GL_DSDT8_NV 0x8709 #define GL_DSDT8_MAG8_NV 0x870A #define GL_DSDT8_MAG8_INTENSITY8_NV 0x870B #define GL_SIGNED_RGB_UNSIGNED_ALPHA_NV 0x870C #define GL_SIGNED_RGB8_UNSIGNED_ALPHA8_NV 0x870D #endif #ifndef GL_NV_float_buffer #define GL_FLOAT_R_NV 0x8880 #define GL_FLOAT_RG_NV 0x8881 #define GL_FLOAT_RGB_NV 0x8882 #define GL_FLOAT_RGBA_NV 0x8883 #define GL_FLOAT_R16_NV 0x8884 #define GL_FLOAT_R32_NV 0x8885 #define GL_FLOAT_RG16_NV 0x8886 #define GL_FLOAT_RG32_NV 0x8887 #define GL_FLOAT_RGB16_NV 0x8888 #define GL_FLOAT_RGB32_NV 0x8889 #define GL_FLOAT_RGBA16_NV 0x888A #define GL_FLOAT_RGBA32_NV 0x888B #endif #ifndef GL_NV_half_float #define GL_HALF_FLOAT_NV 0x140B #endif #ifndef GL_ATI_texture_float #define GL_RGBA_FLOAT32_ATI 0x8814 #define GL_RGB_FLOAT32_ATI 0x8815 #define GL_ALPHA_FLOAT32_ATI 0x8816 #define GL_INTENSITY_FLOAT32_ATI 0x8817 #define GL_LUMINANCE_FLOAT32_ATI 0x8818 #define GL_LUMINANCE_ALPHA_FLOAT32_ATI 0x8819 #define GL_RGBA_FLOAT16_ATI 0x881A #define GL_RGB_FLOAT16_ATI 0x881B #define GL_ALPHA_FLOAT16_ATI 0x881C #define GL_INTENSITY_FLOAT16_ATI 0x881D #define GL_LUMINANCE_FLOAT16_ATI 0x881E #define GL_LUMINANCE_ALPHA_FLOAT16_ATI 0x881F #endif #ifndef GL_MIRRORED_REPEAT_IBM #define GL_MIRRORED_REPEAT_IBM 0x8370 #endif #ifndef GL_CLAMP_TO_EDGE #define GL_CLAMP_TO_EDGE 0x812F #endif #ifndef GL_CLAMP_TO_BORDER_ARB #define GL_CLAMP_TO_BORDER_ARB 0x812D #endif #ifndef GL_GENERATE_MIPMAP_SGIS #define GL_GENERATE_MIPMAP_SGIS 0x8191 #define GL_GENERATE_MIPMAP_HINT_SGIS 0x8192 #endif #ifndef GL_TEXTURE_3D #define GL_TEXTURE_3D 0x806F #endif #ifndef GL_TEXTURE_BINDING_3D #define GL_TEXTURE_BINDING_3D 0x806A #endif #ifndef GL_TEXTURE_COMPARE_MODE_ARB #define GL_DEPTH_TEXTURE_MODE_ARB 0x884B #define GL_TEXTURE_COMPARE_MODE_ARB 0x884C #define GL_TEXTURE_COMPARE_FUNC_ARB 0x884D #define GL_COMPARE_R_TO_TEXTURE_ARB 0x884E #endif #ifndef TEXTURE_COMPARE_FAIL_VALUE_ARB #define TEXTURE_COMPARE_FAIL_VALUE_ARB 0x80BF #endif #if !defined( GL_MAX_TEXTURE_UNITS ) #define GL_MAX_TEXTURE_UNITS 0x84E2 #endif #ifndef GL_TEXTURE_DEPTH #define GL_TEXTURE_DEPTH 0x8071 #endif namespace osg { /** Texture pure virtual base class that encapsulates OpenGl texture * functionality common to the various types of OSG textures. */ class OSG_EXPORT Texture : public osg::StateAttribute { public : static unsigned int s_numberTextureReusedLastInLastFrame; static unsigned int s_numberNewTextureInLastFrame; static unsigned int s_numberDeletedTextureInLastFrame; Texture(); /** Copy constructor using CopyOp to manage deep vs shallow copy. */ Texture(const Texture& text,const CopyOp& copyop=CopyOp::SHALLOW_COPY); virtual osg::Object* cloneType() const = 0; virtual osg::Object* clone(const CopyOp& copyop) const = 0; virtual bool isSameKindAs(const osg::Object* obj) const { return dynamic_cast(obj)!=NULL; } virtual const char* libraryName() const { return "osg"; } virtual const char* className() const { return "Texture"; } virtual Type getType() const { return TEXTURE; } virtual bool isTextureAttribute() const { return true; } enum WrapParameter { WRAP_S, WRAP_T, WRAP_R }; enum WrapMode { CLAMP = GL_CLAMP, CLAMP_TO_EDGE = GL_CLAMP_TO_EDGE, CLAMP_TO_BORDER = GL_CLAMP_TO_BORDER_ARB, REPEAT = GL_REPEAT, MIRROR = GL_MIRRORED_REPEAT_IBM }; /** Sets the texture wrap mode. */ void setWrap(WrapParameter which, WrapMode wrap); /** Gets the texture wrap mode. */ WrapMode getWrap(WrapParameter which) const; /** Sets the border color. Only used when wrap mode is * CLAMP_TO_BORDER. */ void setBorderColor(const Vec4& color) { _borderColor = color; dirtyTextureParameters(); } /** Gets the border color. */ const Vec4& getBorderColor() const { return _borderColor; } /** Sets the border width. */ void setBorderWidth(GLint width) { _borderWidth = width; dirtyTextureParameters(); } GLint getBorderWidth() const { return _borderWidth; } enum FilterParameter { MIN_FILTER, MAG_FILTER }; enum FilterMode { LINEAR = GL_LINEAR, LINEAR_MIPMAP_LINEAR = GL_LINEAR_MIPMAP_LINEAR, LINEAR_MIPMAP_NEAREST = GL_LINEAR_MIPMAP_NEAREST, NEAREST = GL_NEAREST, NEAREST_MIPMAP_LINEAR = GL_NEAREST_MIPMAP_LINEAR, NEAREST_MIPMAP_NEAREST = GL_NEAREST_MIPMAP_NEAREST }; /** Sets the texture filter mode. */ void setFilter(FilterParameter which, FilterMode filter); /** Gets the texture filter mode. */ FilterMode getFilter(FilterParameter which) const; /** Sets the maximum anisotropy value, default value is 1.0 for no * anisotropic filtering. If hardware does not support anisotropic * filtering, use normal filtering (equivilant to a max anisotropy * value of 1.0. Valid range is 1.0f upwards. The maximum value * depends on the graphics system. */ void setMaxAnisotropy(float anis); /** Gets the maximum anisotropy value. */ inline float getMaxAnisotropy() const { return _maxAnisotropy; } /** Sets the hardware mipmap generation hint. If enabled, it will * only be used if supported in the graphics system. */ inline void setUseHardwareMipMapGeneration(bool useHardwareMipMapGeneration) { _useHardwareMipMapGeneration = useHardwareMipMapGeneration; } /** Gets the hardware mipmap generation hint. */ inline bool getUseHardwareMipMapGeneration() const { return _useHardwareMipMapGeneration; } /** Sets whether or not the apply() function will unreference the image * data. If enabled, and the image data is only referened by this * Texture, apply() will delete the image data. */ inline void setUnRefImageDataAfterApply(bool flag) { _unrefImageDataAfterApply = flag; } /** Gets whether or not apply() unreferences image data. */ inline bool getUnRefImageDataAfterApply() const { return _unrefImageDataAfterApply; } /** Sets whether to use client storage for the texture, if supported * by the graphics system. Note: If enabled, and the graphics system * supports it, the osg::Image(s) associated with this texture cannot * be deleted, so the UnRefImageDataAfterApply flag would be ignored. */ inline void setClientStorageHint(bool flag) { _clientStorageHint = flag; } /** Gets whether to use client storage for the texture. */ inline bool getClientStorageHint() const { return _clientStorageHint; } /** Sets whether to force the texture to resize images that have dimensions * that are not a power of two. If enabled, NPOT images will be resized, * whether or not NPOT textures are supported by the hardware. If disabled, * NPOT images will not be resized if supported by hardware. */ inline void setResizeNonPowerOfTwoHint(bool flag) { _resizeNonPowerOfTwoHint = flag; } /** Gets whether texture will force non power to two images to be resized. */ inline bool getResizeNonPowerOfTwoHint() const { return _resizeNonPowerOfTwoHint; } enum InternalFormatMode { USE_IMAGE_DATA_FORMAT, USE_USER_DEFINED_FORMAT, USE_ARB_COMPRESSION, USE_S3TC_DXT1_COMPRESSION, USE_S3TC_DXT3_COMPRESSION, USE_S3TC_DXT5_COMPRESSION }; /** Sets the internal texture format mode. Note: If the texture format is * USE_IMAGE_DATA_FORMAT, USE_ARB_COMPRESSION, or USE_S3TC_COMPRESSION, * the internal format mode is set automatically and will overwrite the * previous _internalFormat. */ inline void setInternalFormatMode(InternalFormatMode mode) { _internalFormatMode = mode; } /** Gets the internal texture format mode. */ inline InternalFormatMode getInternalFormatMode() const { return _internalFormatMode; } /** Sets the internal texture format. Implicitly sets the * internalFormatMode to USE_USER_DEFINED_FORMAT. */ inline void setInternalFormat(GLint internalFormat) { _internalFormatMode = USE_USER_DEFINED_FORMAT; _internalFormat = internalFormat; } /** Gets the internal texture format. */ inline GLint getInternalFormat() const { if (_internalFormat==0) computeInternalFormat(); return _internalFormat; } bool isCompressedInternalFormat() const; class TextureObject; /** Returns a pointer to the texture object for the current context. */ inline TextureObject* getTextureObject(unsigned int contextID) const { return _textureObjectBuffer[contextID].get(); } /** Forces a recompile on next apply() of associated OpenGL texture * objects. */ void dirtyTextureObject(); /** Returns true if the texture objects for all the required graphics * contexts are loaded. */ bool areAllTextureObjectsLoaded() const; /** Gets the dirty flag for the current contextID. */ inline unsigned int& getTextureParameterDirty(unsigned int contextID) const { return _texParametersDirtyList[contextID]; } /** Force a reset on next apply() of associated OpenGL texture * parameters. */ void dirtyTextureParameters(); /** Sets GL_TEXTURE_COMPARE_MODE_ARB to GL_COMPARE_R_TO_TEXTURE_ARB * See http://oss.sgi.com/projects/ogl-sample/registry/ARB/shadow.txt. */ void setShadowComparison(bool flag) { _use_shadow_comparison = flag; } enum ShadowCompareFunc { LEQUAL = GL_LEQUAL, GEQUAL = GL_GEQUAL }; /** Sets shadow texture comparison function. */ void setShadowCompareFunc(ShadowCompareFunc func) { _shadow_compare_func = func; } ShadowCompareFunc getShadowCompareFunc() { return _shadow_compare_func; } enum ShadowTextureMode { LUMINANCE = GL_LUMINANCE, INTENSITY = GL_INTENSITY, ALPHA = GL_ALPHA }; /** Sets shadow texture mode after comparison. */ void setShadowTextureMode(ShadowTextureMode mode) { _shadow_texture_mode = mode; } ShadowTextureMode getShadowTextureMode() { return _shadow_texture_mode; } /** Sets the TEXTURE_COMPARE_FAIL_VALUE_ARB texture parameter. See * http://oss.sgi.com/projects/ogl-sample/registry/ARB/shadow_ambient.txt. */ void setShadowAmbient(float shadow_ambient) { _shadow_ambient = shadow_ambient; } float getShadowAmbient() { return _shadow_ambient; } /** Sets the texture image for the specified face. */ virtual void setImage(unsigned int face, Image* image) = 0; /** Gets the texture image for the specified face. */ virtual Image* getImage(unsigned int face) = 0; /** Gets the const texture image for specified face. */ virtual const Image* getImage(unsigned int face) const = 0; /** Gets the number of images that can be assigned to this Texture. */ virtual unsigned int getNumImages() const = 0; /** Texture is a pure virtual base class, apply must be overriden. */ virtual void apply(State& state) const = 0; /** Calls apply(state) to compile the texture. */ virtual void compileGLObjects(State& state) const; /** If State is non-zero, this function releases OpenGL objects for * the specified graphics context. Otherwise, releases OpenGL objexts * for all graphics contexts. */ virtual void releaseGLObjects(State* state=0) const; /** Encapsulates queries of extension availability, obtains extension * function pointers, and provides convinience wrappers for * calling extension functions. */ class OSG_EXPORT Extensions : public osg::Referenced { public: Extensions(unsigned int contextID); Extensions(const Extensions& rhs); void lowestCommonDenominator(const Extensions& rhs); void setupGLExtensions(unsigned int contextID); void setMultiTexturingSupported(bool flag) { _isMultiTexturingSupported=flag; } bool isMultiTexturingSupported() const { return _isMultiTexturingSupported; } void setTextureFilterAnisotropicSupported(bool flag) { _isTextureFilterAnisotropicSupported=flag; } bool isTextureFilterAnisotropicSupported() const { return _isTextureFilterAnisotropicSupported; } void setTextureCompressionARBSupported(bool flag) { _isTextureCompressionARBSupported=flag; } bool isTextureCompressionARBSupported() const { return _isTextureCompressionARBSupported; } void setTextureCompressionS3TCSupported(bool flag) { _isTextureCompressionS3TCSupported=flag; } bool isTextureCompressionS3TCSupported() const { return _isTextureCompressionS3TCSupported; } void setTextureMirroredRepeatSupported(bool flag) { _isTextureMirroredRepeatSupported=flag; } bool isTextureMirroredRepeatSupported() const { return _isTextureMirroredRepeatSupported; } void setTextureEdgeClampSupported(bool flag) { _isTextureEdgeClampSupported=flag; } bool isTextureEdgeClampSupported() const { return _isTextureEdgeClampSupported; } void setTextureBorderClampSupported(bool flag) { _isTextureBorderClampSupported=flag; } bool isTextureBorderClampSupported() const { return _isTextureBorderClampSupported; } void setGenerateMipMapSupported(bool flag) { _isGenerateMipMapSupported=flag; } bool isGenerateMipMapSupported() const { return _isGenerateMipMapSupported; } void setShadowSupported(bool flag) { _isShadowSupported = flag; } bool isShadowSupported() const { return _isShadowSupported; } void setShadowAmbientSupported(bool flag) { _isShadowAmbientSupported = flag; } bool isShadowAmbientSupported() const { return _isShadowAmbientSupported; } void setMaxTextureSize(GLint maxsize) { _maxTextureSize=maxsize; } GLint maxTextureSize() const { return _maxTextureSize; } void setNumTextureUnits(GLint nunits ) { _numTextureUnits=nunits; } GLint numTextureUnits() const { return _numTextureUnits; } bool isCompressedTexImage2DSupported() const { return _glCompressedTexImage2D!=0; } void setCompressedTexImage2DProc(void* ptr) { _glCompressedTexImage2D = ptr; } void glCompressedTexImage2D(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const GLvoid *data) const; void setCompressedTexSubImage2DProc(void* ptr) { _glCompressedTexSubImage2D = ptr; } void glCompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei type, const GLvoid *data) const; void setGetCompressedTexImageProc(void* ptr) { _glGetCompressedTexImage = ptr; } void glGetCompressedTexImage(GLenum target, GLint level, GLvoid *data) const; bool isClientStorageSupported() const { return _isClientStorageSupported; } bool isNonPowerOfTwoTextureSupported() const { return _isNonPowerOfTwoTextureSupported; } protected: ~Extensions() {} bool _isMultiTexturingSupported; bool _isTextureFilterAnisotropicSupported; bool _isTextureCompressionARBSupported; bool _isTextureCompressionS3TCSupported; bool _isTextureMirroredRepeatSupported; bool _isTextureEdgeClampSupported; bool _isTextureBorderClampSupported; bool _isGenerateMipMapSupported; bool _isShadowSupported; bool _isShadowAmbientSupported; bool _isClientStorageSupported; bool _isNonPowerOfTwoTextureSupported; GLint _maxTextureSize; GLint _numTextureUnits; void* _glCompressedTexImage2D; void* _glCompressedTexSubImage2D; void* _glGetCompressedTexImage; }; /** Gets the extension for the specified context. Creates the * Extensions object for that context if it doesn't exist. * Returns NULL if the Extensions object for the context doesn't * exist and the createIfNotInitalized flag is false. */ static Extensions* getExtensions(unsigned int contextID,bool createIfNotInitalized); /** Overrides Extensions objects across graphics contexts. Typically * used to ensure the same lowest common denominator of extensions * on sustems with different graphics pipes. */ static void setExtensions(unsigned int contextID,Extensions* extensions); /** Helper method. Creates the texture, but doesn't set or use a * texture binding. Note: Don't call this method directly unless * you're implementing a subload callback. */ void applyTexImage2D_load(State& state, GLenum target, const Image* image, GLsizei width, GLsizei height,GLsizei numMipmapLevels) const; /** Helper method. Subloads images into the texture, but doesn't set * or use a texture binding. Note: Don't call this method directly * unless you're implementing a subload callback. */ void applyTexImage2D_subload(State& state, GLenum target, const Image* image, GLsizei width, GLsizei height, GLint inInternalFormat, GLsizei numMipmapLevels) const; protected : virtual ~Texture(); virtual void computeInternalFormat() const = 0; void computeInternalFormatWithImage(const osg::Image& image) const; void computeRequiredTextureDimensions(State& state, const osg::Image& image,GLsizei& width, GLsizei& height,GLsizei& numMipmapLevels) const; bool isCompressedInternalFormat(GLint internalFormat) const; void getCompressedSize(GLenum internalFormat, GLint width, GLint height, GLint depth, GLint& blockSize, GLint& size) const; /** Helper method. Sets texture paramters. */ void applyTexParameters(GLenum target, State& state) const; /** Returns -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs. */ int compareTexture(const Texture& rhs) const; typedef buffered_value TexParameterDirtyList; mutable TexParameterDirtyList _texParametersDirtyList; WrapMode _wrap_s; WrapMode _wrap_t; WrapMode _wrap_r; FilterMode _min_filter; FilterMode _mag_filter; float _maxAnisotropy; bool _useHardwareMipMapGeneration; bool _unrefImageDataAfterApply; bool _clientStorageHint; bool _resizeNonPowerOfTwoHint; Vec4 _borderColor; GLint _borderWidth; InternalFormatMode _internalFormatMode; mutable GLint _internalFormat; bool _use_shadow_comparison; ShadowCompareFunc _shadow_compare_func; ShadowTextureMode _shadow_texture_mode; float _shadow_ambient; public: class TextureObject : public osg::Referenced { public: inline TextureObject(GLuint id,GLenum target): _id(id), _target(target), _numMipmapLevels(0), _internalFormat(0), _width(0), _height(0), _depth(0), _border(0), _allocated(false), _timeStamp(0) {} inline TextureObject(GLuint id, GLenum target, GLint numMipmapLevels, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border): _id(id), _target(target), _numMipmapLevels(numMipmapLevels), _internalFormat(internalFormat), _width(width), _height(height), _depth(depth), _border(border), _allocated(false), _timeStamp(0) {} inline bool match(GLenum target, GLint numMipmapLevels, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border) { return isReusable() && (_target == target) && (_numMipmapLevels == numMipmapLevels) && (_internalFormat == internalFormat) && (_width == width) && (_height == height) && (_depth == depth) && (_border == border); } inline void bind() { glBindTexture( _target, _id); } inline void setAllocated(bool allocated=true) { _allocated = allocated; } inline void setAllocated(GLint numMipmapLevels, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border) { _allocated=true; _numMipmapLevels = numMipmapLevels; _internalFormat = internalFormat; _width = width; _height = height; _depth = depth; _border = border; } inline bool isAllocated() const { return _allocated; } inline bool isReusable() const { return _allocated && _width!=0; } GLuint _id; GLenum _target; GLint _numMipmapLevels; GLenum _internalFormat; GLsizei _width; GLsizei _height; GLsizei _depth; GLint _border; bool _allocated; double _timeStamp; }; typedef std::list< ref_ptr > TextureObjectList; typedef std::map TextureObjectListMap; /** Takes the active texture objects from the Texture and places them * in the specified TextureObjectListMap. */ void takeTextureObjects(TextureObjectListMap& toblm); static TextureObject* generateTextureObject(unsigned int contextID,GLenum target); static TextureObject* generateTextureObject(unsigned int contextID, GLenum target, GLint numMipmapLevels, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border); /** Set the minimum number of texture objects to retain in the deleted display list cache. */ static void setMinimumNumberOfTextureObjectsToRetainInCache(unsigned int minimum); /** Get the minimum number of display lists to retain in the deleted display list cache. */ static unsigned int getMinimumNumberOfTextureObjectsToRetainInCache(); static void flushAllDeletedTextureObjects(unsigned int contextID); static void flushDeletedTextureObjects(unsigned int contextID,double currentTime, double& availableTime); protected: typedef buffered_object< ref_ptr > TextureObjectBuffer; mutable TextureObjectBuffer _textureObjectBuffer; }; } #endif