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 #include <stdbool.h>
32 #include "pipe/p_shader_tokens.h"
33
34 #if defined __cplusplus
35 extern "C" {
36 #endif
37
38 struct tgsi_src_register;
39 struct tgsi_full_src_register;
40 struct tgsi_full_instruction;
41
42 void *
43 tgsi_align_128bit(void *unaligned);
44
45 unsigned
46 tgsi_util_get_src_register_swizzle(const struct tgsi_src_register *reg,
47 unsigned component);
48
49
50 unsigned
51 tgsi_util_get_full_src_register_swizzle(
52 const struct tgsi_full_src_register *reg,
53 unsigned component );
54
55 void
56 tgsi_util_set_src_register_swizzle(struct tgsi_src_register *reg,
57 unsigned swizzle,
58 unsigned component);
59
60
61 #define TGSI_UTIL_SIGN_CLEAR 0 /* Force positive */
62 #define TGSI_UTIL_SIGN_SET 1 /* Force negative */
63 #define TGSI_UTIL_SIGN_TOGGLE 2 /* Negate */
64 #define TGSI_UTIL_SIGN_KEEP 3 /* No change */
65
66 unsigned
67 tgsi_util_get_full_src_register_sign_mode(
68 const struct tgsi_full_src_register *reg,
69 unsigned component);
70
71 void
72 tgsi_util_set_full_src_register_sign_mode(struct tgsi_full_src_register *reg,
73 unsigned sign_mode);
74
75 unsigned
76 tgsi_util_get_inst_usage_mask(const struct tgsi_full_instruction *inst,
77 unsigned src_idx);
78
79 struct tgsi_src_register
80 tgsi_util_get_src_from_ind(const struct tgsi_ind_register *reg);
81
82 int
83 tgsi_util_get_texture_coord_dim(enum tgsi_texture_type tgsi_tex);
84
85 int
86 tgsi_util_get_shadow_ref_src_index(enum tgsi_texture_type tgsi_tex);
87
88 bool
89 tgsi_is_shadow_target(enum tgsi_texture_type target);
90
91
92 static inline bool
tgsi_is_msaa_target(enum tgsi_texture_type target)93 tgsi_is_msaa_target(enum tgsi_texture_type target)
94 {
95 return (target == TGSI_TEXTURE_2D_MSAA ||
96 target == TGSI_TEXTURE_2D_ARRAY_MSAA);
97 }
98
99 static inline bool
tgsi_is_array_sampler(enum tgsi_texture_type target)100 tgsi_is_array_sampler(enum tgsi_texture_type target)
101 {
102 return target == TGSI_TEXTURE_1D_ARRAY ||
103 target == TGSI_TEXTURE_SHADOW1D_ARRAY ||
104 target == TGSI_TEXTURE_2D_ARRAY ||
105 target == TGSI_TEXTURE_SHADOW2D_ARRAY ||
106 target == TGSI_TEXTURE_CUBE_ARRAY ||
107 target == TGSI_TEXTURE_SHADOWCUBE_ARRAY ||
108 target == TGSI_TEXTURE_2D_ARRAY_MSAA;
109 }
110
111 #if defined __cplusplus
112 }
113 #endif
114
115 #endif /* TGSI_UTIL_H */
116