mutter/cogl/cogl-sub-texture-private.h
Robert Bragg 5a814e386a texture: add width/height members to base CoglTexture
There was a lot of redundancy in how we tracked the width and height of
different texture types which is greatly simplified by adding width and
height members to CoglTexture directly and removing the get_width and
get_height vfuncs from CoglTextureVtable

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

(cherry picked from commit 3236e47723e4287d5e0023f29083521aeffc75dd)
2013-01-22 17:48:17 +00:00

56 lines
1.9 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_SUB_TEXTURE_PRIVATE_H
#define __COGL_SUB_TEXTURE_PRIVATE_H
#include "cogl-texture-private.h"
#include <glib.h>
struct _CoglSubTexture
{
CoglTexture _parent;
/* This is the texture that was passed in to
_cogl_sub_texture_new. If this is also a sub texture then we will
use the full texture from that to render instead of making a
chain. However we want to preserve the next texture in case the
user is expecting us to keep a reference and also so that we can
later add a cogl_sub_texture_get_parent_texture() function. */
CoglTexture *next_texture;
/* This is the texture that will actually be used to draw. It will
point to the end of the chain if a sub texture of a sub texture
is created */
CoglTexture *full_texture;
/* The offset of the region represented by this sub-texture. This is
* the offset in full_texture which won't necessarily be the same as
* the offset passed to _cogl_sub_texture_new if next_texture is
* actually already a sub texture */
int sub_x;
int sub_y;
};
#endif /* __COGL_SUB_TEXTURE_PRIVATE_H */