1 /**************************************************************************
3 * Copyright 2010 VMware, Inc.
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 **************************************************************************/
28 #include "sp_context.h"
30 #include "sp_texture.h"
32 #include "util/u_format.h"
33 #include "util/u_memory.h"
34 #include "draw/draw_context.h"
35 #include "pipebuffer/pb_buffer.h"
37 static struct pipe_stream_output_target
*
38 softpipe_create_so_target(struct pipe_context
*pipe
,
39 struct pipe_resource
*buffer
,
40 unsigned buffer_offset
,
43 struct draw_so_target
*t
;
45 t
= CALLOC_STRUCT(draw_so_target
);
46 t
->target
.context
= pipe
;
47 t
->target
.reference
.count
= 1;
48 pipe_resource_reference(&t
->target
.buffer
, buffer
);
49 t
->target
.buffer_offset
= buffer_offset
;
50 t
->target
.buffer_size
= buffer_size
;
55 softpipe_so_target_destroy(struct pipe_context
*pipe
,
56 struct pipe_stream_output_target
*target
)
58 pipe_resource_reference(&target
->buffer
, NULL
);
63 softpipe_set_so_targets(struct pipe_context
*pipe
,
65 struct pipe_stream_output_target
**targets
,
66 unsigned append_bitmask
)
68 struct softpipe_context
*softpipe
= softpipe_context(pipe
);
71 for (i
= 0; i
< num_targets
; i
++) {
72 pipe_so_target_reference((struct pipe_stream_output_target
**)&softpipe
->so_targets
[i
], targets
[i
]);
75 for (; i
< softpipe
->num_so_targets
; i
++) {
76 pipe_so_target_reference((struct pipe_stream_output_target
**)&softpipe
->so_targets
[i
], NULL
);
79 softpipe
->num_so_targets
= num_targets
;
83 softpipe_init_streamout_funcs(struct pipe_context
*pipe
)
85 pipe
->create_stream_output_target
= softpipe_create_so_target
;
86 pipe
->stream_output_target_destroy
= softpipe_so_target_destroy
;
87 pipe
->set_stream_output_targets
= softpipe_set_so_targets
;