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
,
121 PIPE_BUFFER_USAGE_CPU_WRITE
|
122 PIPE_BUFFER_USAGE_FLUSH_EXPLICIT
|
123 PIPE_BUFFER_USAGE_DISCARD
);
126 memcpy((uint8_t *)map
+ offset
, data
, size
);
127 pipe_buffer_flush_mapped_range(screen
, buf
, offset
, size
);
128 pipe_buffer_unmap(screen
, buf
);
133 * Special case for writing non-overlapping ranges.
135 * We can avoid GPU/CPU synchronization when writing range that has never
136 * been written before.
139 pipe_buffer_write_nooverlap(struct pipe_screen
*screen
,
140 struct pipe_buffer
*buf
,
141 unsigned offset
, unsigned size
,
146 assert(offset
< buf
->size
);
147 assert(offset
+ size
<= buf
->size
);
150 map
= pipe_buffer_map_range(screen
, buf
, offset
, size
,
151 PIPE_BUFFER_USAGE_CPU_WRITE
|
152 PIPE_BUFFER_USAGE_FLUSH_EXPLICIT
|
153 PIPE_BUFFER_USAGE_DISCARD
|
154 PIPE_BUFFER_USAGE_UNSYNCHRONIZED
);
157 memcpy((uint8_t *)map
+ offset
, data
, size
);
158 pipe_buffer_flush_mapped_range(screen
, buf
, offset
, size
);
159 pipe_buffer_unmap(screen
, buf
);
164 pipe_buffer_read(struct pipe_screen
*screen
,
165 struct pipe_buffer
*buf
,
166 unsigned offset
, unsigned size
,
171 assert(offset
< buf
->size
);
172 assert(offset
+ size
<= buf
->size
);
175 map
= pipe_buffer_map_range(screen
, buf
, offset
, size
, PIPE_BUFFER_USAGE_CPU_READ
);
178 memcpy(data
, (const uint8_t *)map
+ offset
, size
);
179 pipe_buffer_unmap(screen
, buf
);
184 pipe_transfer_map( struct pipe_transfer
*transf
)
186 struct pipe_screen
*screen
= transf
->texture
->screen
;
187 return screen
->transfer_map(screen
, transf
);
191 pipe_transfer_unmap( struct pipe_transfer
*transf
)
193 struct pipe_screen
*screen
= transf
->texture
->screen
;
194 screen
->transfer_unmap(screen
, transf
);
198 pipe_transfer_destroy( struct pipe_transfer
*transf
)
200 struct pipe_screen
*screen
= transf
->texture
->screen
;
201 screen
->tex_transfer_destroy(transf
);
204 static INLINE
unsigned
205 pipe_transfer_buffer_flags( struct pipe_transfer
*transf
)
207 switch (transf
->usage
& PIPE_TRANSFER_READ_WRITE
) {
208 case PIPE_TRANSFER_READ_WRITE
:
209 return PIPE_BUFFER_USAGE_CPU_READ
| PIPE_BUFFER_USAGE_CPU_WRITE
;
210 case PIPE_TRANSFER_READ
:
211 return PIPE_BUFFER_USAGE_CPU_READ
;
212 case PIPE_TRANSFER_WRITE
:
213 return PIPE_BUFFER_USAGE_CPU_WRITE
;
224 #endif /* P_INLINES_H */