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GfxGLTexture Class Reference

Wrapper around an image and handle allocation of graphics RAM. More...

#include <freecloth/gfx/gfxGLTexture.h>

Inheritance diagram for GfxGLTexture:

[legend]Collaboration diagram for GfxGLTexture:

[legend]List of all members.

Public Types
typedef RCShdPtr< GfxImage >	ImagePtr
Public Member Functions
	GfxGLTexture (const ImagePtr &image, Int32 format)
UInt32	getTextureId () const
GePoint	getCorner () const
void	bind () const
void	generateMipmaps ()
UInt32	getOriginalWidth () const
	Get width of texture image prior to power-of-2 related padding.
UInt32	getOriginalHeight () const
	Get height of texture image prior to power-of-2 related padding.
Float	getOriginalAspectRatio () const
	Get aspect ratio prior to power-of-2 related padding.
const GfxImage &	getImage () const
	Get actual image used for texture.
Static Public Member Functions
RCShdPtr< GfxImage >	makePow2 (const GfxImage &)
Private Member Functions
	GfxGLTexture (const GfxGLTexture &)
	Disallowed.
GfxGLTexture &	operator= (const GfxGLTexture &)
	Disallowed.
Private Attributes
ImagePtr	_image
UInt32	_textureId
Int32	_format
UInt32	_originalWidth
UInt32	_originalHeight

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Detailed Description

Wrapper around an image and handle allocation of graphics RAM.

Image is padded to a power-of-2 size, as required by OpenGL.

Definition at line 50 of file gfxGLTexture.h.

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Member Function Documentation

GePoint GfxGLTexture::getCorner (    )  const

Get position of top-right corner of image in texture co-ordinates. If the input image is a large enough power-of-2 size, this will always be (1,1). Otherwise, the image is padded with zeros to a power-of-2 size, and the top-right corner will have a (u,v) position somewhere between (.5,.5) and (1,1) Definition at line 115 of file gfxGLTexture.cpp.

RCShdPtr< GfxImage > GfxGLTexture::makePow2 (  const GfxImage &    )  [static]

Embeds input image in a larger image whose size is a power of two. Keep in mind that texture co-ordinates need to take into account the new image size. Definition at line 147 of file gfxGLTexture.cpp. References GfxImage::getFormat(), GfxImage::getHeight(), GfxImage::getNbComponents(), GfxImage::getRawData(), and GfxImage::getWidth().

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

• gfxGLTexture.h
• gfxGLTexture.cpp

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