1 /*
2 * Copyright 2014 VMware, Inc.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
15 * of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26
27 #ifndef U_PRIM_RESTART_H
28 #define U_PRIM_RESTART_H
29
30
31 #include "pipe/p_defines.h"
32
33
34 #ifdef __cplusplus
35 extern "C" {
36 #endif
37
38
39 struct pipe_context;
40 struct pipe_draw_info;
41 union pipe_index_binding;
42 struct pipe_resource;
43
44 void
45 util_translate_prim_restart_data(unsigned index_size,
46 void *src_map, void *dst_map,
47 unsigned count, unsigned restart_index);
48
49 enum pipe_error
50 util_translate_prim_restart_ib(struct pipe_context *context,
51 const struct pipe_draw_info *info,
52 const struct pipe_draw_indirect_info *indirect,
53 const struct pipe_draw_start_count_bias *draw,
54 struct pipe_resource **dst_buffer);
55
56 struct pipe_draw_start_count_bias *
57 util_prim_restart_convert_to_direct(const void *index_map,
58 const struct pipe_draw_info *info,
59 const struct pipe_draw_start_count_bias *draw,
60 unsigned *num_draws,
61 unsigned *min_index,
62 unsigned *max_index,
63 unsigned *total_index_count);
64
65 enum pipe_error
66 util_draw_vbo_without_prim_restart(struct pipe_context *context,
67 const struct pipe_draw_info *info,
68 unsigned drawid_offset,
69 const struct pipe_draw_indirect_info *indirect,
70 const struct pipe_draw_start_count_bias *draw);
71
72 static inline unsigned
util_prim_restart_index_from_size(unsigned index_size)73 util_prim_restart_index_from_size(unsigned index_size)
74 {
75 /* 1 -> 0xff, 2 -> 0xffff, 4 -> 0xffffffff */
76 return 0xffffffffu >> 8 * (4 - index_size);
77 }
78
79 #ifdef __cplusplus
80 }
81 #endif
82
83 #endif
84