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1 /**************************************************************************
2  *
3  * Copyright 2009 VMware, Inc.
4  * Copyright 2012 Marek Olšák <maraeo@gmail.com>
5  * All Rights Reserved.
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a
8  * copy of this software and associated documentation files (the
9  * "Software"), to deal in the Software without restriction, including
10  * without limitation the rights to use, copy, modify, merge, publish,
11  * distribute, sub license, and/or sell copies of the Software, and to
12  * permit persons to whom the Software is furnished to do so, subject to
13  * the following conditions:
14  *
15  * The above copyright notice and this permission notice (including the
16  * next paragraph) shall be included in all copies or substantial portions
17  * of the Software.
18  *
19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22  * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
23  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26  *
27  **************************************************************************/
28 
29 /* A simple allocator that suballocates memory from a large buffer. */
30 
31 #ifndef U_SUBALLOC
32 #define U_SUBALLOC
33 
34 struct u_suballocator;
35 
36 struct u_suballocator *
37 u_suballocator_create(struct pipe_context *pipe, unsigned size, unsigned bind,
38                       enum pipe_resource_usage usage,
39 		      boolean zero_buffer_memory);
40 
41 void
42 u_suballocator_destroy(struct u_suballocator *allocator);
43 
44 void
45 u_suballocator_alloc(struct u_suballocator *allocator, unsigned size,
46                      unsigned alignment, unsigned *out_offset,
47                      struct pipe_resource **outbuf);
48 
49 #endif
50