106 lines
3.4 KiB
C
106 lines
3.4 KiB
C
/*
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* Cogl
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*
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* A Low Level GPU Graphics and Utilities API
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*
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* Copyright (C) 2010,2011 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef __COGL_ATLAS_H
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#define __COGL_ATLAS_H
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#include "cogl-rectangle-map.h"
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#include "cogl-object-private.h"
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#include "cogl-texture.h"
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typedef void
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(* CoglAtlasUpdatePositionCallback) (void *user_data,
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CoglTexture *new_texture,
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const CoglRectangleMapEntry *rect);
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typedef enum
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{
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COGL_ATLAS_CLEAR_TEXTURE = (1 << 0),
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COGL_ATLAS_DISABLE_MIGRATION = (1 << 1)
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} CoglAtlasFlags;
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typedef struct _CoglAtlas CoglAtlas;
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#define COGL_ATLAS(object) ((CoglAtlas *) object)
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struct _CoglAtlas
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{
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CoglObject _parent;
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CoglRectangleMap *map;
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CoglTexture *texture;
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CoglPixelFormat texture_format;
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CoglAtlasFlags flags;
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CoglAtlasUpdatePositionCallback update_position_cb;
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GHookList pre_reorganize_callbacks;
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GHookList post_reorganize_callbacks;
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};
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CoglAtlas *
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_cogl_atlas_new (CoglPixelFormat texture_format,
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CoglAtlasFlags flags,
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CoglAtlasUpdatePositionCallback update_position_cb);
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CoglBool
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_cogl_atlas_reserve_space (CoglAtlas *atlas,
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unsigned int width,
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unsigned int height,
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void *user_data);
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void
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_cogl_atlas_remove (CoglAtlas *atlas,
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const CoglRectangleMapEntry *rectangle);
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CoglTexture *
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_cogl_atlas_copy_rectangle (CoglAtlas *atlas,
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int x,
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int y,
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int width,
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int height,
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CoglPixelFormat format);
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void
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_cogl_atlas_add_reorganize_callback (CoglAtlas *atlas,
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GHookFunc pre_callback,
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GHookFunc post_callback,
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void *user_data);
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void
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_cogl_atlas_remove_reorganize_callback (CoglAtlas *atlas,
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GHookFunc pre_callback,
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GHookFunc post_callback,
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void *user_data);
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CoglBool
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_cogl_is_atlas (void *object);
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#endif /* __COGL_ATLAS_H */
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