mirror of
https://github.com/brl/mutter.git
synced 2024-11-10 07:56:14 -05:00
18fb1ffab5
This exposes cogl_sub_texture_new() and cogl_is_sub_texture() as experimental public API. Previously sub-textures were only exposed via cogl_texture_new_from_sub_texture() so there wasn't a corresponding CoglSubTexture type. A CoglSubTexture is a high-level texture defined as a sub-region of some other parent texture. CoglSubTextures are high level textures that implement the CoglMetaTexture interface which can be used to manually handle texture repeating. Reviewed-by: Neil Roberts <neil@linux.intel.com>
61 lines
2.0 KiB
C
61 lines
2.0 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 region represented by this sub-texture. This is the region of
|
|
full_texture which won't necessarily be the same as the region
|
|
passed to _cogl_sub_texture_new if next_texture is actually
|
|
already a sub texture */
|
|
int sub_x;
|
|
int sub_y;
|
|
int sub_width;
|
|
int sub_height;
|
|
};
|
|
|
|
GQuark
|
|
_cogl_handle_sub_texture_get_type (void);
|
|
|
|
#endif /* __COGL_SUB_TEXTURE_PRIVATE_H */
|