mutter/cogl/cogl-atlas.h

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/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2010,2011 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __COGL_ATLAS_H
#define __COGL_ATLAS_H
#include "cogl-rectangle-map.h"
#include "cogl-callback-list.h"
#include "cogl-object-private.h"
typedef void
(* CoglAtlasUpdatePositionCallback) (void *user_data,
CoglHandle 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;
CoglHandle texture;
CoglPixelFormat texture_format;
CoglAtlasFlags flags;
CoglAtlasUpdatePositionCallback update_position_cb;
CoglCallbackList pre_reorganize_callbacks;
CoglCallbackList post_reorganize_callbacks;
};
CoglAtlas *
_cogl_atlas_new (CoglPixelFormat texture_format,
CoglAtlasFlags flags,
CoglAtlasUpdatePositionCallback update_position_cb);
gboolean
_cogl_atlas_reserve_space (CoglAtlas *atlas,
unsigned int width,
unsigned int height,
void *user_data);
void
_cogl_atlas_remove (CoglAtlas *atlas,
const CoglRectangleMapEntry *rectangle);
CoglHandle
_cogl_atlas_copy_rectangle (CoglAtlas *atlas,
unsigned int x,
unsigned int y,
unsigned int width,
unsigned int height,
CoglTextureFlags flags,
CoglPixelFormat format);
void
_cogl_atlas_add_reorganize_callback (CoglAtlas *atlas,
CoglCallbackListFunc pre_callback,
CoglCallbackListFunc post_callback,
void *user_data);
void
_cogl_atlas_remove_reorganize_callback (CoglAtlas *atlas,
CoglCallbackListFunc pre_callback,
CoglCallbackListFunc post_callback,
void *user_data);
#endif /* __COGL_ATLAS_H */