OpenSceneGraph
3.4.0
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Texture2DArray state class which encapsulates OpenGL 2D array texture functionality. More...
Classes | |
class | SubloadCallback |
Public Member Functions | |
Texture2DArray () | |
Texture2DArray (const Texture2DArray &cm, const CopyOp ©op=CopyOp::SHALLOW_COPY) | |
Copy constructor using CopyOp to manage deep vs shallow copy. | |
META_StateAttribute (osg, Texture2DArray, TEXTURE) | |
virtual int | compare (const StateAttribute &rhs) const |
Return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs. | |
virtual GLenum | getTextureTarget () const |
virtual bool | getModeUsage (StateAttribute::ModeUsage &) const |
Texture2DArray is related to non fixed pipeline usage only so isn't appropriate to enable/disable. | |
virtual void | setImage (unsigned int layer, Image *image) |
Set the texture image for specified layer. | |
virtual Image * | getImage (unsigned int layer) |
Get the texture image for specified layer. | |
virtual const Image * | getImage (unsigned int layer) const |
Get the const texture image for specified layer. | |
virtual unsigned int | getNumImages () const |
Get the number of images that are assigned to the Texture. | |
unsigned int & | getModifiedCount (unsigned int layer, unsigned int contextID) const |
Check how often was a certain layer in the given context modified. | |
void | setTextureSize (int width, int height, int depth) |
Set the texture width and height. | |
void | setTextureWidth (int width) |
void | setTextureHeight (int height) |
void | setTextureDepth (int depth) |
virtual int | getTextureWidth () const |
virtual int | getTextureHeight () const |
virtual int | getTextureDepth () 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 texture has been created with. | |
unsigned int | getNumMipmapLevels () const |
Get the number of mip map levels the texture has been created with. | |
void | copyTexSubImage2DArray (State &state, int xoffset, int yoffset, int zoffset, int x, int y, int width, int height) |
Copies a two-dimensional texture subimage, as per glCopyTexSubImage3D. | |
virtual void | apply (State &state) const |
Bind the texture if already compiled. | |
Protected Types | |
typedef std::vector< ref_ptr < Image > > | Images |
typedef buffered_value < unsigned int > | ImageModifiedCount |
Protected Member Functions | |
virtual | ~Texture2DArray () |
bool | imagesValid () const |
virtual void | computeInternalFormat () const |
GLsizei | computeTextureDepth () const |
void | allocateMipmap (State &state) const |
Allocate mipmap levels of the texture by subsequent calling of glTexImage* function. | |
void | applyTexImage2DArray_subload (State &state, Image *image, GLsizei layer, GLsizei inwidth, GLsizei inheight, GLsizei indepth, GLint inInternalFormat, GLsizei &numMipmapLevels) const |
Protected Attributes | |
Images | _images |
GLsizei | _textureWidth |
GLsizei | _textureHeight |
GLsizei | _textureDepth |
GLsizei | _numMipmapLevels |
ref_ptr< SubloadCallback > | _subloadCallback |
std::vector< ImageModifiedCount > | _modifiedCount |
Texture2DArray state class which encapsulates OpenGL 2D array texture functionality.
Texture arrays were introduced with Shader Model 4.0 hardware.
A 2D texture array does contain textures sharing the same properties (e.g. size, bitdepth,...) in a layered structure. See http://www.opengl.org/registry/specs/EXT/texture_array.txt for more info.
typedef buffered_value<unsigned int> osg::Texture2DArray::ImageModifiedCount [protected] |
typedef std::vector< ref_ptr<Image> > osg::Texture2DArray::Images [protected] |
osg::Texture2DArray::Texture2DArray | ( | const Texture2DArray & | cm, |
const CopyOp & | copyop = CopyOp::SHALLOW_COPY |
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) |
Copy constructor using CopyOp to manage deep vs shallow copy.
virtual osg::Texture2DArray::~Texture2DArray | ( | ) | [protected, virtual] |
void osg::Texture2DArray::allocateMipmap | ( | State & | state | ) | const [protected, virtual] |
Allocate mipmap levels of the texture by subsequent calling of glTexImage* function.
Implements osg::Texture.
virtual void osg::Texture2DArray::apply | ( | State & | state | ) | const [virtual] |
void osg::Texture2DArray::applyTexImage2DArray_subload | ( | State & | state, |
Image * | image, | ||
GLsizei | layer, | ||
GLsizei | inwidth, | ||
GLsizei | inheight, | ||
GLsizei | indepth, | ||
GLint | inInternalFormat, | ||
GLsizei & | numMipmapLevels | ||
) | const [protected] |
virtual int osg::Texture2DArray::compare | ( | const StateAttribute & | rhs | ) | const [virtual] |
Return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.
Implements osg::StateAttribute.
virtual void osg::Texture2DArray::computeInternalFormat | ( | ) | const [protected, virtual] |
Implements osg::Texture.
GLsizei osg::Texture2DArray::computeTextureDepth | ( | ) | const [protected] |
void osg::Texture2DArray::copyTexSubImage2DArray | ( | State & | state, |
int | xoffset, | ||
int | yoffset, | ||
int | zoffset, | ||
int | x, | ||
int | y, | ||
int | width, | ||
int | height | ||
) |
Copies a two-dimensional texture subimage, as per glCopyTexSubImage3D.
Updates a portion of an existing OpenGL texture object from the current OpenGL background framebuffer contents at position x, y with width width and height height. Loads framebuffer data into the texture using offsets xoffset and yoffset. zoffset specifies the layer of the texture array to which the result is copied.
virtual Image* osg::Texture2DArray::getImage | ( | unsigned int | layer | ) | [virtual] |
Get the texture image for specified layer.
Implements osg::Texture.
virtual const Image* osg::Texture2DArray::getImage | ( | unsigned int | layer | ) | const [virtual] |
Get the const texture image for specified layer.
Implements osg::Texture.
virtual bool osg::Texture2DArray::getModeUsage | ( | StateAttribute::ModeUsage & | ) | const [inline, virtual] |
Texture2DArray is related to non fixed pipeline usage only so isn't appropriate to enable/disable.
Reimplemented from osg::Texture.
unsigned int& osg::Texture2DArray::getModifiedCount | ( | unsigned int | layer, |
unsigned int | contextID | ||
) | const [inline] |
Check how often was a certain layer in the given context modified.
virtual unsigned int osg::Texture2DArray::getNumImages | ( | ) | const [inline, virtual] |
Get the number of images that are assigned to the Texture.
The number is equal to the texture depth. To get the maximum possible image/layer count, you have to use the extension subclass, since it provides graphic context dependent information.
Implements osg::Texture.
unsigned int osg::Texture2DArray::getNumMipmapLevels | ( | ) | const [inline] |
Get the number of mip map levels the texture has been created with.
SubloadCallback* osg::Texture2DArray::getSubloadCallback | ( | ) | [inline] |
const SubloadCallback* osg::Texture2DArray::getSubloadCallback | ( | ) | const [inline] |
virtual int osg::Texture2DArray::getTextureDepth | ( | ) | const [inline, virtual] |
Reimplemented from osg::Texture.
virtual int osg::Texture2DArray::getTextureHeight | ( | ) | const [inline, virtual] |
Reimplemented from osg::Texture.
virtual GLenum osg::Texture2DArray::getTextureTarget | ( | ) | const [inline, virtual] |
Implements osg::Texture.
References GL_TEXTURE_2D_ARRAY_EXT.
virtual int osg::Texture2DArray::getTextureWidth | ( | ) | const [inline, virtual] |
Reimplemented from osg::Texture.
bool osg::Texture2DArray::imagesValid | ( | ) | const [protected] |
virtual void osg::Texture2DArray::setImage | ( | unsigned int | layer, |
Image * | image | ||
) | [virtual] |
Set the texture image for specified layer.
Implements osg::Texture.
void osg::Texture2DArray::setNumMipmapLevels | ( | unsigned int | num | ) | const [inline] |
Set the number of mip map levels the texture has been created with.
Should only be called within an osg::Texture::apply() and custom OpenGL texture load.
void osg::Texture2DArray::setSubloadCallback | ( | SubloadCallback * | cb | ) | [inline] |
void osg::Texture2DArray::setTextureDepth | ( | int | depth | ) |
void osg::Texture2DArray::setTextureHeight | ( | int | height | ) | [inline] |
void osg::Texture2DArray::setTextureSize | ( | int | width, |
int | height, | ||
int | depth | ||
) |
Set the texture width and height.
If width or height are zero then the respective size value is calculated from the source image sizes. Depth parameter specifies the number of layers to be used.
void osg::Texture2DArray::setTextureWidth | ( | int | width | ) | [inline] |
Images osg::Texture2DArray::_images [protected] |
std::vector<ImageModifiedCount> osg::Texture2DArray::_modifiedCount [mutable, protected] |
GLsizei osg::Texture2DArray::_numMipmapLevels [mutable, protected] |
ref_ptr<SubloadCallback> osg::Texture2DArray::_subloadCallback [protected] |
GLsizei osg::Texture2DArray::_textureDepth [mutable, protected] |
GLsizei osg::Texture2DArray::_textureHeight [mutable, protected] |
GLsizei osg::Texture2DArray::_textureWidth [mutable, protected] |
![]() | Generated at Tue Dec 8 2015 00:16:44 for the OpenSceneGraph by doxygen 1.7.6.1. |