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/*
* Cogl
*
* A Low-Level GPU Graphics and Utilities API
*
* Copyright (C) 2010,2011 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_H
#define __COGL_ATLAS_H
#include "cogl-rectangle-map.h"
#include "cogl-object-private.h"
#include "cogl-texture.h"
typedef void
(* CoglAtlasUpdatePositionCallback) (void *user_data,
CoglTexture *new_texture,
const CoglRectangleMapEntry *rect);
typedef enum
{
COGL_ATLAS_CLEAR_TEXTURE = (1 << 0),
COGL_ATLAS_DISABLE_MIGRATION = (1 << 1)
} CoglAtlasFlags;
typedef struct _CoglAtlas CoglAtlas;
#define COGL_ATLAS(object) ((CoglAtlas *) object)
struct _CoglAtlas
{
CoglObject _parent;
CoglRectangleMap *map;
CoglTexture *texture;
CoglPixelFormat texture_format;
CoglAtlasFlags flags;
CoglAtlasUpdatePositionCallback update_position_cb;
UHookList pre_reorganize_callbacks;
UHookList post_reorganize_callbacks;
};
CoglAtlas *
_cogl_atlas_new (CoglPixelFormat texture_format,
CoglAtlasFlags flags,
CoglAtlasUpdatePositionCallback update_position_cb);
CoglBool
_cogl_atlas_reserve_space (CoglAtlas *atlas,
unsigned int width,
unsigned int height,
void *user_data);
void
_cogl_atlas_remove (CoglAtlas *atlas,
const CoglRectangleMapEntry *rectangle);
CoglTexture *
_cogl_atlas_copy_rectangle (CoglAtlas *atlas,
int x,
int y,
int width,
int height,
CoglPixelFormat format);
void
_cogl_atlas_add_reorganize_callback (CoglAtlas *atlas,
UHookFunc pre_callback,
UHookFunc post_callback,
void *user_data);
void
_cogl_atlas_remove_reorganize_callback (CoglAtlas *atlas,
UHookFunc pre_callback,
UHookFunc post_callback,
void *user_data);
CoglBool
_cogl_is_atlas (void *object);
#endif /* __COGL_ATLAS_H */
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