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/*
* Cogl
*
* A Low-Level GPU Graphics and Utilities API
*
* Copyright (C) 2009 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*
*/
#ifndef _COGL_ATLAS_TEXTURE_PRIVATE_H_
#define _COGL_ATLAS_TEXTURE_PRIVATE_H_
#include "cogl-object-private.h"
#include "cogl-texture-private.h"
#include "cogl-rectangle-map.h"
#include "cogl-atlas.h"
#include "cogl-atlas-texture.h"
struct _CoglAtlasTexture
{
CoglTexture _parent;
/* The format that the texture is in. This isn't necessarily the
same format as the atlas texture because we can store
pre-multiplied and non-pre-multiplied textures together */
CoglPixelFormat internal_format;
/* The rectangle that was used to add this texture to the
atlas. This includes the 1-pixel border */
CoglRectangleMapEntry rectangle;
/* The atlas that this texture is in. If the texture is no longer in
an atlas then this will be NULL. A reference is taken on the
atlas by the texture (but not vice versa so there is no cycle) */
CoglAtlas *atlas;
/* Either a CoglSubTexture representing the atlas region for easy
* rendering or if the texture has been migrated out of the atlas it
* may be some other texture type such as CoglTexture2D */
CoglTexture *sub_texture;
};
void
_cogl_atlas_texture_add_reorganize_callback (CoglContext *ctx,
GHookFunc callback,
void *user_data);
void
_cogl_atlas_texture_remove_reorganize_callback (CoglContext *ctx,
GHookFunc callback,
void *user_data);
CoglBool
_cogl_is_atlas_texture (void *object);
#endif /* _COGL_ATLAS_TEXTURE_PRIVATE_H_ */
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