class SG_EXPORT osg::Texture2D

Texture state class which encapsulates OpenGl texture functionality

Inheritance:

Public Methods

Texture2D()

Texture2D(const Texture2D& text, const CopyOp& copyop=CopyOp::SHALLOW_COPY)

Copy constructor using CopyOp to manage deep vs shallow copy

META_StateAttribute(osg, Texture2D, TEXTURE)

virtual int compare(const StateAttribute& rhs) const

return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs

virtual void getAssociatedModes(std::vector<GLMode>& modes) const

void setImage(Image* image)

Set the texture image.

Image* getImage()

Get the texture image.

inline const Image* getImage() const

Get the const texture image.

inline unsigned int& getModifiedTag(unsigned int contextID) const

inline void setTextureSize(int width, int height) const

Set the texture width and height.

int getTextureWidth() const

int getTextureHeight() const

inline void getTextureSize(int& width, int& height) const

void setSubloadCallback(SubloadCallback* cb)

SubloadCallback* getSubloadCallback()

const SubloadCallback* getSubloadCallback() const

void setNumMipmapLevels(unsigned int num) const

Set the number of mip map levels the the texture has been created with, should only be called within an osg::Texuture::apply() and custom OpenGL texture load

unsigned int getNumMipmapLevels() const

Get the number of mip map levels the the texture has been created with

void copyTexImage2D(State& state, int x, int y, int width, int height )

Copy pixels into a 2D texture imageAs per glCopyTexImage2D.

void copyTexSubImage2D(State& state, int xoffset, int yoffset, int x, int y, int width, int height )

Copy a two-dimensional texture subimage.

virtual void apply(State& state) const

On first apply (unless already compiled), create the minmapped texture and bind it, subsequent apply will simple bind to texture

Public Members

class SG_EXPORT SubloadCallback: public Referenced

Protected Fields

ref_ptr<Image> _image

mutable GLsizei _textureWidth

mutable GLsizei _textureHeight

mutable GLsizei _numMimpmapLevels

ref_ptr<SubloadCallback> _subloadCallback

mutable ImageModifiedTag _modifiedTag

Protected Methods

virtual ~Texture2D()

virtual void computeInternalFormat() const

Protected Members

typedef buffered_value<unsigned int> ImageModifiedTag

Inherited from Texture:

Public Methods

virtual osg::Object* cloneType() const

virtual osg::Object* clone(const CopyOp& copyop) const

virtual bool isSameKindAs(const osg::Object* obj) const

virtual const char* libraryName() const

virtual const char* className() const

virtual Type getType() const

virtual bool isTextureAttribute() const

void setWrap(WrapParameter which, WrapMode wrap)

WrapMode getWrap(WrapParameter which) const

void setBorderColor(const Vec4& color)

const Vec4& getBorderColor() const

void setFilter(FilterParameter which, FilterMode filter)

FilterMode getFilter(FilterParameter which) const

void setMaxAnisotropy(float anis)

inline float getMaxAnisotropy() const

inline void setUseHardwareMipMapGeneration(bool useHardwareMipMapGeneration)

inline bool getUseHardwareMipMapGeneration() const

inline void setUnRefImageDataAfterApply(bool flag)

inline bool getUnRefImageDataAfterApply() const

inline void setInternalFormatMode(InternalFormatMode mode)

inline InternalFormatMode getInternalFormatMode() const

inline void setInternalFormat(GLint internalFormat)

inline GLint getInternalFormat() const

bool isCompressedInternalFormat() const

inline GLuint& getTextureObject(unsigned int contextID) const

inline unsigned int& getTextureParameterDirty(unsigned int contextID) const

void dirtyTextureObject()

void dirtyTextureParameters()

static void deleteTextureObject(unsigned int contextID, GLuint handle)

static void flushDeletedTextureObjects(unsigned int contextID)

virtual void compile(State& state) const

static Extensions* getExtensions(unsigned int contextID, bool createIfNotInitalized)

static void setExtensions(unsigned int contextID, Extensions* extensions)

void applyTexImage2D_load(GLenum target, const Image* image, State& state, GLsizei& width, GLsizei& height, GLsizei& numMimpmapLevels) const

void applyTexImage2D_subload(GLenum target, const Image* image, State& state, GLsizei& width, GLsizei& height, GLsizei& numMimpmapLevels) const

Public Members

enum WrapParameter

enum WrapMode

enum FilterParameter

enum FilterMode

enum InternalFormatMode

class SG_EXPORT Extensions: public osg::Referenced

Extensions class which encapsulates the querring of extensions and associated function pointers, and provide convinience wrappers to check for the extensions or use the associated functions

Protected Fields

mutable TextureNameList _handleList

mutable TexParameterDirtyList _texParametersDirtyList

WrapMode _wrap_s

WrapMode _wrap_t

WrapMode _wrap_r

FilterMode _min_filter

FilterMode _mag_filter

float _maxAnisotropy

bool _useHardwareMipMapGeneration

bool _unrefImageDataAfterApply

Vec4 _borderColor

InternalFormatMode _internalFormatMode

mutable GLint _internalFormat

Protected Methods

void computeInternalFormatWithImage(const osg::Image& image) const

bool isCompressedInternalFormat(GLint internalFormat) const

void applyTexParameters(GLenum target, State& state) const

int compareTexture(const Texture& rhs) const

Protected Members

typedef buffered_value<GLuint> TextureNameList

typedef buffered_value<unsigned int> TexParameterDirtyList

Inherited from StateAttribute:

Public Methods

bool operator < (const StateAttribute& rhs) const

bool operator == (const StateAttribute& rhs) const

bool operator != (const StateAttribute& rhs) const

Public Members

typedef GLenum GLMode

typedef unsigned int GLModeValue

typedef unsigned int OverrideValue

enum Values

typedef unsigned int Type

enum Types

Inherited from Object:

Public Methods

inline void setDataVariance(DataVariance dv)

inline DataVariance getDataVariance() const

inline void setUserData(Referenced* obj)

inline Referenced* getUserData()

inline const Referenced* getUserData() const

Public Members

enum DataVariance

Protected Fields

DataVariance _dataVariance

ref_ptr<Referenced> _userData

Inherited from Referenced:

Public Methods

inline Referenced& operator = (Referenced&)

static void setDeleteHandler(DeleteHandler* handler)

static DeleteHandler* getDeleteHandler()

inline void ref() const

inline void unref_nodelete() const

inline int referenceCount() const

inline void unref() const

Protected Fields

mutable int _refCount

Documentation

Texture state class which encapsulates OpenGl texture functionality

Texture2D()

Texture2D(const Texture2D& text, const CopyOp& copyop=CopyOp::SHALLOW_COPY)

Copy constructor using CopyOp to manage deep vs shallow copy

META_StateAttribute(osg, Texture2D, TEXTURE)

virtual int compare(const StateAttribute& rhs) const

return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs

virtual void getAssociatedModes(std::vector<GLMode>& modes) const

void setImage(Image* image)

Set the texture image.

Image* getImage()

Get the texture image.

inline const Image* getImage() const

Get the const texture image.

inline unsigned int& getModifiedTag(unsigned int contextID) const

inline void setTextureSize(int width, int height) const

Set the texture width and height. If width or height are zero then the repsective size value is calculated from the source image sizes.

int getTextureWidth() const

int getTextureHeight() const

inline void getTextureSize(int& width, int& height) const

void setSubloadCallback(SubloadCallback* cb)

SubloadCallback* getSubloadCallback()

const SubloadCallback* getSubloadCallback() const

void setNumMipmapLevels(unsigned int num) const

Set the number of mip map levels the the texture has been created with, should only be called within an osg::Texuture::apply() and custom OpenGL texture load

unsigned int getNumMipmapLevels() const

Get the number of mip map levels the the texture has been created with

void copyTexImage2D(State& state, int x, int y, int width, int height )

Copy pixels into a 2D texture imageAs per glCopyTexImage2D. Creates an OpenGL texture object from the current OpenGL background framebuffer contents at pos \a x, \a y with width \a width and height \a height. \a width and \a height must be a power of two.

void copyTexSubImage2D(State& state, int xoffset, int yoffset, int x, int y, int width, int height )

Copy a two-dimensional texture subimage. As per glCopyTexSubImage2D. Updates portion of an existing OpenGL texture object from the current OpenGL background framebuffer contents at pos \a x, \a y with width \a width and height \a height. \a width and \a height must be a power of two, and writing into the texture with offset \a xoffset and \a yoffset.

virtual void apply(State& state) const

On first apply (unless already compiled), create the minmapped texture and bind it, subsequent apply will simple bind to texture

virtual ~Texture2D()

virtual void computeInternalFormat() const

ref_ptr<Image> _image

mutable GLsizei _textureWidth

mutable GLsizei _textureHeight

mutable GLsizei _numMimpmapLevels

ref_ptr<SubloadCallback> _subloadCallback

typedef buffered_value<unsigned int> ImageModifiedTag

mutable ImageModifiedTag _modifiedTag

This class has no child classes.

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