RE_OGLTextureCache Class Reference

#include <RE_OGLTextureCache.h>

List of all members.

Public Member Functions
	RE_OGLTextureCache ()
	~RE_OGLTextureCache ()
int	addTexture (RE_Render *r, PXL_Raster *texture)
	Add a regular texture from a raster and return its unique ID.
int	addMipMapTexture (RE_Render *r, UT_PtrArray< PXL_Raster * > levels)
void	removeTexture (int id)
	Remove a texture from the cache.
void	clearTextureCache ()
	Free all textures.
int	getTextureVersion () const
void	renderTexture (RE_Render *r, int x, int y, int w, int h, int id, fpreal alpha=1.0f)
	Render a given texture at (x, y) with width and height w, h.
bool	startTexture (RE_Render *r, int id, int &cacheindex)
void	endTexture (RE_Render *r, int id)
	Stop drawing using the given texture.
void	beginTextureDefer (RE_Render *r)
void	endTextureDefer (RE_Render *r)
Static Public Member Functions
static bool	isTexture (int id)
	Checks if the given texture ID is valid.

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Detailed Description

Definition at line 68 of file RE_OGLTextureCache.h.

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Constructor & Destructor Documentation

RE_OGLTextureCache::RE_OGLTextureCache

(

)

RE_OGLTextureCache::~RE_OGLTextureCache

(

)

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Member Function Documentation

int RE_OGLTextureCache::addMipMapTexture	(	RE_Render *	r,
		UT_PtrArray< PXL_Raster * >	levels
	)

Add a mip-mapped texture, with many levels defined by the rasters passed as levels, and return its unique ID. The levels must all be powers of two in size, and must follow the progression from 2^Nx2^N, 2^(N-1)x2^(N-1), ..., 1x1.

int RE_OGLTextureCache::addTexture	(	RE_Render *	r,
		PXL_Raster *	texture
	)

Add a regular texture from a raster and return its unique ID.

void RE_OGLTextureCache::beginTextureDefer

(

RE_Render *

r

)

These methods record the textures to be drawn, and draws them all at once when endTextureDefer() is called.

void RE_OGLTextureCache::clearTextureCache

(

)

Free all textures.

void RE_OGLTextureCache::endTexture	(	RE_Render *	r,
		int	id
	)

Stop drawing using the given texture.

void RE_OGLTextureCache::endTextureDefer

(

RE_Render *

r

)

int RE_OGLTextureCache::getTextureVersion

(

)

const [inline]

Returns a version # for the cache; every time it is cleared, this number is bumped;

Definition at line 91 of file RE_OGLTextureCache.h.

static bool RE_OGLTextureCache::isTexture

(

int

id

)

[static]

Checks if the given texture ID is valid.

void RE_OGLTextureCache::removeTexture

(

int

id

)

Remove a texture from the cache.

void RE_OGLTextureCache::renderTexture	(	RE_Render *	r,
		int	x,
		int	y,
		int	w,
		int	h,
		int	id,
		fpreal	alpha = 1.0f
	)

Render a given texture at (x, y) with width and height w, h.

bool RE_OGLTextureCache::startTexture	(	RE_Render *	r,
		int	id,
		int &	cacheindex
	)

Helper methods. You can use this to draw non-square textures. These bind the current texture to be the one specified. Drawing polygons with texture coordinates (i.e., uv coordinates) will use this texture.

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

• RE/RE_OGLTextureCache.h