1 /**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
4 * All Rights Reserved.
5 *
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:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
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 VMWARE 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.
25 *
26 **************************************************************************/
27
28 #ifndef TGSI_UTIL_H
29 #define TGSI_UTIL_H
30
31 #if defined __cplusplus
32 extern "C" {
33 #endif
34
35 #include "pipe/p_shader_tokens.h"
36
37 struct tgsi_src_register;
38 struct tgsi_full_src_register;
39 struct tgsi_full_instruction;
40
41 void *
42 tgsi_align_128bit(
43 void *unaligned );
44
45 unsigned
46 tgsi_util_get_src_register_swizzle(
47 const struct tgsi_src_register *reg,
48 unsigned component );
49
50
51 unsigned
52 tgsi_util_get_full_src_register_swizzle(
53 const struct tgsi_full_src_register *reg,
54 unsigned component );
55
56 void
57 tgsi_util_set_src_register_swizzle(
58 struct tgsi_src_register *reg,
59 unsigned swizzle,
60 unsigned component );
61
62 #define TGSI_UTIL_SIGN_CLEAR 0 /* Force positive */
63 #define TGSI_UTIL_SIGN_SET 1 /* Force negative */
64 #define TGSI_UTIL_SIGN_TOGGLE 2 /* Negate */
65 #define TGSI_UTIL_SIGN_KEEP 3 /* No change */
66
67 unsigned
68 tgsi_util_get_full_src_register_sign_mode(
69 const struct tgsi_full_src_register *reg,
70 unsigned component );
71
72 void
73 tgsi_util_set_full_src_register_sign_mode(
74 struct tgsi_full_src_register *reg,
75 unsigned sign_mode );
76
77 unsigned
78 tgsi_util_get_inst_usage_mask(const struct tgsi_full_instruction *inst,
79 unsigned src_idx);
80
81 struct tgsi_src_register
82 tgsi_util_get_src_from_ind(const struct tgsi_ind_register *reg);
83
84 int
85 tgsi_util_get_texture_coord_dim(unsigned tgsi_tex);
86
87 int
88 tgsi_util_get_shadow_ref_src_index(unsigned tgsi_tex);
89
90 boolean
91 tgsi_is_shadow_target(unsigned target);
92
93
94 static inline boolean
tgsi_is_msaa_target(unsigned target)95 tgsi_is_msaa_target(unsigned target)
96 {
97 return (target == TGSI_TEXTURE_2D_MSAA ||
98 target == TGSI_TEXTURE_2D_ARRAY_MSAA);
99 }
100
101 #if defined __cplusplus
102 }
103 #endif
104
105 #endif /* TGSI_UTIL_H */
106