rr_gl::Texture Class Reference

#include <Texture.h>

Inheritance diagram for rr_gl::Texture:

Public Member Functions
	Texture (rr::RRBuffer *buffer, bool buildMipMaps, bool compress, int magn=GL_LINEAR, int mini=GL_LINEAR, int wrapS=GL_REPEAT, int wrapT=GL_REPEAT)
rr::RRBuffer *	getBuffer ()
const rr::RRBuffer *	getBuffer () const
void	reset (bool buildMipMaps, bool compress, bool scaledAsSRGB)
void	bindTexture () const
void	copyTextureToBuffer ()
const GLuint	getId () const
	~Texture ()
Public Member Functions inherited from rr::RRUniformlyAllocated
void *	operator new (std::size_t n)
void *	operator new[] (std::size_t n)
void	operator delete (void *p, std::size_t n)
void	operator delete[] (void *p, std::size_t n)

Static Public Member Functions
static Texture *	createShadowmap (unsigned width, unsigned height, bool color=false)

Public Attributes
unsigned	version

Protected Attributes
rr::RRBuffer *	buffer
GLuint	id
GLenum	cubeOr2d
GLenum	internalFormat

Friends
class	FBO

Additional Inherited Members
Protected Member Functions inherited from rr::RRUniformlyAllocatedNonCopyable
	RRUniformlyAllocatedNonCopyable ()
	~RRUniformlyAllocatedNonCopyable ()

Detailed Description

Texture is simple OpenGL wrapper around rr::RRBuffer.

It supports BT_2D_TEXTURE and BT_CUBE_TEXTURE buffer types. It can be constructed and destructed manually (use one of constructor) or automatically by getTexture() function.

Constructor & Destructor Documentation

Texture()

rr_gl::Texture::Texture	(	rr::RRBuffer *	buffer,
		bool	buildMipMaps,
		bool	compress,
		int	magn = GL_LINEAR,
		int	mini = GL_LINEAR,
		int	wrapS = GL_REPEAT,
		int	wrapT = GL_REPEAT
	)

Creates texture. Buffer is not adopted, not deleted in destructor.

~Texture()

rr_gl::Texture::~Texture

(

)

Member Function Documentation

createShadowmap()

static Texture * rr_gl::Texture::createShadowmap ( unsigned  width, unsigned  height, bool  color = false  )

static

Creates shadowmap, depth or color texture.

getBuffer() [1/2]

rr::RRBuffer * rr_gl::Texture::getBuffer

(

)

Returns texture buffer (with type, width, height, format, data).

getBuffer() [2/2]

const rr::RRBuffer * rr_gl::Texture::getBuffer

(

)

const

Returns texture buffer (with type, width, height, format, data).

reset()

void rr_gl::Texture::reset	(	bool	buildMipMaps,
		bool	compress,
		bool	scaledAsSRGB
	)

Rebuilds texture from buffer and additional parameters.

Note that depth textures are automatically configured for the most common use case - shadowmapping. If you plan to read depth values from depth texture (instead of shadowmapping), call glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_NONE); after reset().

Parameters

buildMipMaps	Builds texture with mipmaps.
compress	Builds compressed texture.
scaledAsSRGB	Builds sRGB (rather than RGB) texture for scaled buffers.

bindTexture()

void rr_gl::Texture::bindTexture

(

)

const

Binds texture.

copyTextureToBuffer()

void rr_gl::Texture::copyTextureToBuffer

(

)

Reads texture back from GPU memory to buffer, increases version.

getId()

const GLuint rr_gl::Texture::getId ( ) const

inline

Returns OpenGL specific id of texture. Only necessary for passing our textures to third party OpenGL code.

Friends And Related Symbol Documentation

FBO

friend class FBO

friend

Member Data Documentation

version

unsigned rr_gl::Texture::version

buffer

rr::RRBuffer* rr_gl::Texture::buffer

protected

id

GLuint rr_gl::Texture::id

protected

cubeOr2d

GLenum rr_gl::Texture::cubeOr2d

protected

internalFormat

GLenum rr_gl::Texture::internalFormat

protected