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239614a375
This adds cogl_atlas_texture_* functions to register a callback that will get invoked whenever any of the CoglAtlas's the textures use get reorganized. The callback is global and is not tied to any particular atlas texture.
81 lines
2.6 KiB
C
81 lines
2.6 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) 2009 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, see <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#ifndef __COGL_ATLAS_TEXTURE_H
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#define __COGL_ATLAS_TEXTURE_H
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#include "cogl-handle.h"
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#include "cogl-texture-private.h"
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#include "cogl-rectangle-map.h"
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#include "cogl-atlas.h"
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#define COGL_ATLAS_TEXTURE(tex) ((CoglAtlasTexture *) tex)
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typedef struct _CoglAtlasTexture CoglAtlasTexture;
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struct _CoglAtlasTexture
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{
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CoglTexture _parent;
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/* The format that the texture is in. This isn't necessarily the
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same format as the atlas texture because we can store
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pre-multiplied and non-pre-multiplied textures together */
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CoglPixelFormat format;
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/* The rectangle that was used to add this texture to the
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atlas. This includes the 1-pixel border */
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CoglRectangleMapEntry rectangle;
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/* The atlas that this texture is in. If the texture is no longer in
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an atlas then this will be NULL. A reference is taken on the
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atlas by the texture (but not vice versa so there is no cycle) */
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CoglAtlas *atlas;
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/* A CoglSubTexture representing the region for easy rendering */
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CoglHandle sub_texture;
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};
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GQuark
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_cogl_handle_atlas_texture_get_type (void);
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CoglHandle
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_cogl_atlas_texture_new_from_bitmap (CoglBitmap *bmp,
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CoglTextureFlags flags,
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CoglPixelFormat internal_format);
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CoglHandle
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_cogl_atlas_texture_new_with_size (unsigned int width,
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unsigned int height,
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CoglTextureFlags flags,
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CoglPixelFormat internal_format);
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void
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_cogl_atlas_texture_add_reorganize_callback (GHookFunc callback,
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void *user_data);
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void
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_cogl_atlas_texture_remove_reorganize_callback (GHookFunc callback,
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void *user_data);
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#endif /* __COGL_ATLAS_TEXTURE_H */
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