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e4e318c9f8
glib already has a data type to manage a list of callbacks called a GHookList so we might as well use it instead of maintaining Cogl's own type. The glib version may be slightly more efficient because it avoids using a GList and instead encodes the prev and next pointers directly in the GHook structure. It also has more features than CoglCallbackList.
98 lines
3.1 KiB
C
98 lines
3.1 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2010,2011 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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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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typedef void
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(* CoglAtlasUpdatePositionCallback) (void *user_data,
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CoglHandle 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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CoglHandle 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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gboolean
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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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CoglHandle
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_cogl_atlas_copy_rectangle (CoglAtlas *atlas,
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unsigned int x,
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unsigned int y,
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unsigned int width,
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unsigned int height,
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CoglTextureFlags flags,
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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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#endif /* __COGL_ATLAS_H */
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