mutter/cogl/cogl-atlas-texture-private.h
Robert Bragg fc5d1a8a68 Expose CoglAtlasTexture api
This exposes the CoglAtlasTexture api, making the following public:
cogl_atlas_texture_new_with_size
cogl_atlas_texture_new_from_file
cogl_atlas_texture_new_from_data
cogl_atlas_texture_new_from_bitmap

The plan is to remove auto-texture apis like cogl_texture_new_from_file
since they are a bit too magic, but that means we need an explicit way
for users to allocate texture that will go in the atlas.

Although the _new_from_file() api is arguably redundant since you can
use _bitmap_new_from_file() followed by _atlas_texture_new_from_bitmap()
we don't want to loose any of the convenience that
cogl_texture_new_from_file() had.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit fe515e6063ba4c3ddb5cd00d2c8527d9a6336a12)

Conflicts:
	cogl/Makefile.am
2013-07-29 16:38:53 +01:00

77 lines
2.6 KiB
C

/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2009 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, see <http://www.gnu.org/licenses/>.
*
*
*/
#ifndef _COGL_ATLAS_TEXTURE_PRIVATE_H_
#define _COGL_ATLAS_TEXTURE_PRIVATE_H_
#include "cogl-object-private.h"
#include "cogl-texture-private.h"
#include "cogl-rectangle-map.h"
#include "cogl-atlas.h"
#include "cogl-atlas-texture.h"
struct _CoglAtlasTexture
{
CoglTexture _parent;
/* The format that the texture is in. This isn't necessarily the
same format as the atlas texture because we can store
pre-multiplied and non-pre-multiplied textures together */
CoglPixelFormat format;
/* The rectangle that was used to add this texture to the
atlas. This includes the 1-pixel border */
CoglRectangleMapEntry rectangle;
/* The atlas that this texture is in. If the texture is no longer in
an atlas then this will be NULL. A reference is taken on the
atlas by the texture (but not vice versa so there is no cycle) */
CoglAtlas *atlas;
/* Either a CoglSubTexture representing the atlas region for easy
* rendering or if the texture has been migrated out of the atlas it
* may be some other texture type such as CoglTexture2D */
CoglTexture *sub_texture;
};
CoglAtlasTexture *
_cogl_atlas_texture_new_from_bitmap (CoglBitmap *bmp,
CoglPixelFormat internal_format,
CoglBool can_convert_in_place,
CoglError **error);
void
_cogl_atlas_texture_add_reorganize_callback (CoglContext *ctx,
GHookFunc callback,
void *user_data);
void
_cogl_atlas_texture_remove_reorganize_callback (CoglContext *ctx,
GHookFunc callback,
void *user_data);
CoglBool
_cogl_is_atlas_texture (void *object);
#endif /* _COGL_ATLAS_TEXTURE_PRIVATE_H_ */