eq::util::Texture Class Reference

A wrapper around GL textures. More...

#include <texture.h>

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List of all members.

Public Member Functions
	Texture (GLEWContext *const glewContext=0)
	Construct a new Texture.
void	flush ()
	Clear the texture, including the GL texture name.
void	setTarget (const GLenum target)
	Set the target of the texture.
GLenum	getTarget () const
void	setFormat (const GLuint format)
	Set the internal format of the texture.
GLuint	getFormat () const
void	copyFromFrameBuffer (const PixelViewport &pvp)
	Copy the specified area from the current read buffer to the texture at 0,0.
void	upload (const Image *image, const Frame::Buffer which)
	Copy the specified image buffer to the texture at 0,0.
void	upload (const int width, const int height, void *ptr)
	Copy the specified buffer to the texture at 0,0.
void	download (void *buffer, const uint32_t format, const uint32_t type) const
	Copy the texture data to the given memory address.
void	download (void *buffer) const
	Copy the texture data to the given memory address, using the internal format and type.
void	bind () const
	Bind the texture.
void	bindToFBO (const GLenum target, const int width, const int height)
	Create and bind a texture to the current FBO.
void	resize (const int width, const int height)
	Resize the texture.
bool	isValid () const
void	writeTexture (const std::string &filename, const eq::Frame::Buffer buffer, const PixelViewport &pvp) const
	Writes the texture data as a rgb image file.
GLEWContext *	glewGetContext ()
const GLEWContext *	glewGetContext () const
void	setGLEWContext (GLEWContext *context)

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Detailed Description

A wrapper around GL textures.

So far used by the Image and Compositor. The target is assumed to be GL_TEXTURE_RECTANGLE_ARB.

Definition at line 40 of file texture.h.

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Constructor & Destructor Documentation

eq::util::Texture::Texture

(

GLEWContext *const

glewContext = 0

)

Construct a new Texture.

Definition at line 26 of file texture.cpp.

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Member Function Documentation

void eq::util::Texture::flush

(

)

Clear the texture, including the GL texture name.

Definition at line 53 of file texture.cpp.

Referenced by eq::util::FrameBufferObject::exit(), and eq::util::AccumBufferObject::exit().

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void eq::util::Texture::setTarget

(

const GLenum

target

)

Set the target of the texture.

Definition at line 64 of file texture.cpp.

GLenum eq::util::Texture::getTarget

(

)

const [inline]

Returns:

the target of the texture.

Definition at line 54 of file texture.h.

void eq::util::Texture::setFormat

(

const GLuint

format

)

Set the internal format of the texture.

Definition at line 69 of file texture.cpp.

Referenced by eq::util::FrameBufferObject::FrameBufferObject(), eq::util::AccumBufferObject::init(), and upload().

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GLuint eq::util::Texture::getFormat

(

)

const [inline]

Returns:

the internal format of the texture.

Definition at line 60 of file texture.h.

Referenced by writeTexture().

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void eq::util::Texture::upload	(	const Image *	image,
		const Frame::Buffer	which
	)

Copy the specified image buffer to the texture at 0,0.

Definition at line 184 of file texture.cpp.

References eq::Image::getFormat(), eq::Image::getInternalTextureFormat(), eq::Image::getPixelPointer(), eq::Image::getPixelViewport(), eq::Image::getType(), and setFormat().

Referenced by eq::Compositor::assembleImageDB_GLSL().

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void eq::util::Texture::upload	(	const int	width,
		const int	height,
		void *	ptr
	)

Copy the specified buffer to the texture at 0,0.

Definition at line 199 of file texture.cpp.

References resize().

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void eq::util::Texture::download	(	void *	buffer,
		const uint32_t	format,
		const uint32_t	type
	)			const

Copy the texture data to the given memory address.

Definition at line 212 of file texture.cpp.

Referenced by download(), and writeTexture().

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void eq::util::Texture::bind

(

)

const

Bind the texture.

Definition at line 227 of file texture.cpp.

Referenced by eq::Compositor::assembleImageDB_GLSL().

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void eq::util::Texture::bindToFBO	(	const GLenum	target,
		const int	width,
		const int	height
	)

Create and bind a texture to the current FBO.

Definition at line 233 of file texture.cpp.

Referenced by eq::util::FrameBufferObject::init().

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void eq::util::Texture::resize	(	const int	width,
		const int	height
	)

Resize the texture.

Definition at line 253 of file texture.cpp.

Referenced by copyFromFrameBuffer(), eq::util::FrameBufferObject::resize(), and upload().

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bool eq::util::Texture::isValid

(

)

const

Returns:

true if the texture can be bound.

Definition at line 48 of file texture.cpp.

Referenced by eq::Image::hasTextureData(), and eq::util::FrameBufferObject::resize().

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void eq::util::Texture::writeTexture	(	const std::string &	filename,
		const eq::Frame::Buffer	buffer,
		const PixelViewport &	pvp
	)			const

Writes the texture data as a rgb image file.

Definition at line 278 of file texture.cpp.

References download(), getFormat(), eq::Image::getPixelPointer(), eq::Image::setFormat(), eq::Image::setPixelViewport(), eq::Image::setType(), eq::Image::validatePixelData(), and eq::Image::writeImage().

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The documentation for this class was generated from the following files:

• texture.h
• texture.cpp