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/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2009 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*
*/
#ifndef __COGL_ATLAS_TEXTURE_H
#define __COGL_ATLAS_TEXTURE_H
#include "cogl-object-private.h"
#include "cogl-texture-private.h"
#include "cogl-rectangle-map.h"
#include "cogl-atlas.h"
#define COGL_ATLAS_TEXTURE(tex) ((CoglAtlasTexture *) tex)
typedef struct _CoglAtlasTexture CoglAtlasTexture;
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 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;
};
CoglAtlasTexture *
_cogl_atlas_texture_new_from_bitmap (CoglBitmap *bmp,
CoglTextureFlags flags,
CoglPixelFormat internal_format,
CoglError **error);
CoglAtlasTexture *
_cogl_atlas_texture_new_with_size (CoglContext *ctx,
int width,
int height,
CoglTextureFlags flags,
CoglPixelFormat internal_format,
CoglError **error);
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_H */
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