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
35extern "C" {
36#endif
37
38struct tgsi_src_register;
39struct tgsi_full_src_register;
40struct tgsi_full_instruction;
41
42void *
43tgsi_align_128bit(void *unaligned);
44
45unsigned
46tgsi_util_get_src_register_swizzle(const struct tgsi_src_register *reg,
47                                   unsigned component);
48
49
50unsigned
51tgsi_util_get_full_src_register_swizzle(
52   const struct tgsi_full_src_register *reg,
53   unsigned component );
54
55void
56tgsi_util_set_src_register_swizzle(struct tgsi_src_register *reg,
57                                   unsigned swizzle,
58                                   unsigned component);
59
60unsigned
61tgsi_util_get_inst_usage_mask(const struct tgsi_full_instruction *inst,
62                              unsigned src_idx);
63
64struct tgsi_src_register
65tgsi_util_get_src_from_ind(const struct tgsi_ind_register *reg);
66
67int
68tgsi_util_get_texture_coord_dim(enum tgsi_texture_type tgsi_tex);
69
70int
71tgsi_util_get_shadow_ref_src_index(enum tgsi_texture_type tgsi_tex);
72
73bool
74tgsi_is_shadow_target(enum tgsi_texture_type target);
75
76
77static inline bool
78tgsi_is_msaa_target(enum tgsi_texture_type target)
79{
80   return (target == TGSI_TEXTURE_2D_MSAA ||
81           target == TGSI_TEXTURE_2D_ARRAY_MSAA);
82}
83
84static inline bool
85tgsi_is_array_sampler(enum tgsi_texture_type target)
86{
87   return target == TGSI_TEXTURE_1D_ARRAY ||
88          target == TGSI_TEXTURE_SHADOW1D_ARRAY ||
89          target == TGSI_TEXTURE_2D_ARRAY ||
90          target == TGSI_TEXTURE_SHADOW2D_ARRAY ||
91          target == TGSI_TEXTURE_CUBE_ARRAY ||
92          target == TGSI_TEXTURE_SHADOWCUBE_ARRAY ||
93          target == TGSI_TEXTURE_2D_ARRAY_MSAA;
94}
95
96#if defined __cplusplus
97}
98#endif
99
100#endif /* TGSI_UTIL_H */
101