1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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 above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
31 #include "p_context.h"
32 #include "p_defines.h"
42 * Convenience wrappers for screen buffer functions.
45 static INLINE
struct pipe_buffer
*
46 pipe_buffer_create( struct pipe_screen
*screen
,
47 unsigned alignment
, unsigned usage
, unsigned size
)
49 return screen
->buffer_create(screen
, alignment
, usage
, size
);
52 static INLINE
struct pipe_buffer
*
53 pipe_user_buffer_create( struct pipe_screen
*screen
, void *ptr
, unsigned size
)
55 return screen
->user_buffer_create(screen
, ptr
, size
);
59 pipe_buffer_map(struct pipe_screen
*screen
,
60 struct pipe_buffer
*buf
,
63 if(screen
->buffer_map_range
) {
65 unsigned length
= buf
->size
;
66 return screen
->buffer_map_range(screen
, buf
, offset
, length
, usage
);
69 return screen
->buffer_map(screen
, buf
, usage
);
73 pipe_buffer_unmap(struct pipe_screen
*screen
,
74 struct pipe_buffer
*buf
)
76 screen
->buffer_unmap(screen
, buf
);
80 pipe_buffer_map_range(struct pipe_screen
*screen
,
81 struct pipe_buffer
*buf
,
86 assert(offset
< buf
->size
);
87 assert(offset
+ length
<= buf
->size
);
89 if(screen
->buffer_map_range
)
90 return screen
->buffer_map_range(screen
, buf
, offset
, length
, usage
);
92 return screen
->buffer_map(screen
, buf
, usage
);
96 pipe_buffer_flush_mapped_range(struct pipe_screen
*screen
,
97 struct pipe_buffer
*buf
,
101 assert(offset
< buf
->size
);
102 assert(offset
+ length
<= buf
->size
);
104 if(screen
->buffer_flush_mapped_range
)
105 screen
->buffer_flush_mapped_range(screen
, buf
, offset
, length
);
109 pipe_buffer_write(struct pipe_screen
*screen
,
110 struct pipe_buffer
*buf
,
111 unsigned offset
, unsigned size
,
116 assert(offset
< buf
->size
);
117 assert(offset
+ size
<= buf
->size
);
120 map
= pipe_buffer_map_range(screen
, buf
, offset
, size
, PIPE_BUFFER_USAGE_CPU_WRITE
);
123 memcpy(map
+ offset
, data
, size
);
124 pipe_buffer_flush_mapped_range(screen
, buf
, offset
, size
);
125 pipe_buffer_unmap(screen
, buf
);
130 pipe_buffer_read(struct pipe_screen
*screen
,
131 struct pipe_buffer
*buf
,
132 unsigned offset
, unsigned size
,
137 assert(offset
< buf
->size
);
138 assert(offset
+ size
<= buf
->size
);
141 map
= pipe_buffer_map_range(screen
, buf
, offset
, size
, PIPE_BUFFER_USAGE_CPU_READ
);
144 memcpy(data
, map
+ offset
, size
);
145 pipe_buffer_unmap(screen
, buf
);
154 #endif /* P_INLINES_H */