1/**********************************************************
2 * Copyright 2014 VMware, Inc.  All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 *
24 **********************************************************/
25
26#ifndef SVGA_STREAMOUT_H
27#define SVGA_STREAMOUT_H
28
29struct svga_shader;
30
31struct svga_stream_output {
32   struct pipe_stream_output_info info;
33   unsigned pos_out_index;                  // position output index
34   unsigned id;
35   unsigned streammask;                     // bitmask to specify which streams are enabled
36   unsigned buffer_stream;
37   struct svga_winsys_buffer *declBuf;
38};
39
40struct svga_stream_output *
41svga_create_stream_output(struct svga_context *svga,
42                          struct svga_shader *shader,
43                          const struct pipe_stream_output_info *info);
44
45enum pipe_error
46svga_set_stream_output(struct svga_context *svga,
47                       struct svga_stream_output *streamout);
48
49void
50svga_delete_stream_output(struct svga_context *svga,
51                          struct svga_stream_output *streamout);
52
53enum pipe_error
54svga_rebind_stream_output_targets(struct svga_context *svga);
55
56void
57svga_create_stream_output_queries(struct svga_context *svga);
58
59void
60svga_destroy_stream_output_queries(struct svga_context *svga);
61
62void
63svga_begin_stream_output_queries(struct svga_context *svga, unsigned mask);
64
65void
66svga_end_stream_output_queries(struct svga_context *svga, unsigned mask);
67
68unsigned
69svga_get_primcount_from_stream_output(struct svga_context *svga,
70                                      unsigned stream);
71
72#endif /* SVGA_STREAMOUT_H */
73