1 /**************************************************************************
3 * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
18 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
19 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 * The above copyright notice and this permission notice (including the
23 * next paragraph) shall be included in all copies or substantial portions
27 **************************************************************************/
31 * A buffer manager that wraps buffers in fenced buffers.
33 * \author José Fonseca <jrfonseca@tungstengraphics.dot.com>
37 #include "pipe/p_debug.h"
38 #include "util/u_memory.h"
40 #include "pb_buffer.h"
41 #include "pb_buffer_fenced.h"
42 #include "pb_bufmgr.h"
45 struct fenced_pb_manager
47 struct pb_manager base
;
49 struct pb_manager
*provider
;
51 struct fenced_buffer_list
*fenced_list
;
55 static INLINE
struct fenced_pb_manager
*
56 fenced_pb_manager(struct pb_manager
*mgr
)
59 return (struct fenced_pb_manager
*)mgr
;
63 static struct pb_buffer
*
64 fenced_bufmgr_create_buffer(struct pb_manager
*mgr
,
66 const struct pb_desc
*desc
)
68 struct fenced_pb_manager
*fenced_mgr
= fenced_pb_manager(mgr
);
69 struct pb_buffer
*buf
;
70 struct pb_buffer
*fenced_buf
;
72 /* check for free buffers before allocating new ones */
73 fenced_buffer_list_check_free(fenced_mgr
->fenced_list
, 0);
75 buf
= fenced_mgr
->provider
->create_buffer(fenced_mgr
->provider
, size
, desc
);
77 /* try harder to get a buffer */
78 fenced_buffer_list_check_free(fenced_mgr
->fenced_list
, 1);
80 buf
= fenced_mgr
->provider
->create_buffer(fenced_mgr
->provider
, size
, desc
);
87 fenced_buf
= fenced_buffer_create(fenced_mgr
->fenced_list
, buf
);
89 assert(buf
->base
.refcount
== 1);
98 fenced_bufmgr_flush(struct pb_manager
*mgr
)
100 struct fenced_pb_manager
*fenced_mgr
= fenced_pb_manager(mgr
);
102 fenced_buffer_list_check_free(fenced_mgr
->fenced_list
, TRUE
);
104 assert(fenced_mgr
->provider
->flush
);
105 if(fenced_mgr
->provider
->flush
)
106 fenced_mgr
->provider
->flush(fenced_mgr
->provider
);
111 fenced_bufmgr_destroy(struct pb_manager
*mgr
)
113 struct fenced_pb_manager
*fenced_mgr
= fenced_pb_manager(mgr
);
115 fenced_buffer_list_destroy(fenced_mgr
->fenced_list
);
117 if(fenced_mgr
->provider
)
118 fenced_mgr
->provider
->destroy(fenced_mgr
->provider
);
125 fenced_bufmgr_create(struct pb_manager
*provider
,
126 struct pipe_winsys
*winsys
)
128 struct fenced_pb_manager
*fenced_mgr
;
133 fenced_mgr
= CALLOC_STRUCT(fenced_pb_manager
);
137 fenced_mgr
->base
.destroy
= fenced_bufmgr_destroy
;
138 fenced_mgr
->base
.create_buffer
= fenced_bufmgr_create_buffer
;
139 fenced_mgr
->base
.flush
= fenced_bufmgr_flush
;
141 fenced_mgr
->provider
= provider
;
142 fenced_mgr
->fenced_list
= fenced_buffer_list_create(winsys
);
143 if(!fenced_mgr
->fenced_list
) {
148 return &fenced_mgr
->base
;