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1/*
2 * Copyright © 2017 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24#ifndef NIR_FORMAT_CONVERT_H
25#define NIR_FORMAT_CONVERT_H
26
27#include "nir_builder.h"
28#include "util/format/u_formats.h"
29
30#ifdef __cplusplus
31extern "C" {
32#endif
33
34static inline nir_def *
35nir_shift_imm(nir_builder *b, nir_def *value, int left_shift)
36{
37 if (left_shift > 0)
38 return nir_ishl_imm(b, value, left_shift);
39 else if (left_shift < 0)
40 return nir_ushr_imm(b, value, -left_shift);
41 else
42 return value;
43}
44
45static inline nir_def *
46nir_shift(nir_builder *b, nir_def *value, nir_def *left_shift)
47{
48 return nir_bcsel(b,
49 nir_ige_imm(b, left_shift, 0),
50 nir_ishl(b, value, left_shift),
51 nir_ushr(b, value, nir_ineg(b, left_shift)));
52}
53
54static inline nir_def *
55nir_mask_shift(struct nir_builder *b, nir_def *src,
56 uint32_t mask, int left_shift)
57{
58 return nir_shift_imm(b, nir_iand_imm(b, src, mask), left_shift);
59}
60
61static inline nir_def *
62nir_mask_shift_or(struct nir_builder *b, nir_def *dst, nir_def *src,
63 uint32_t src_mask, int src_left_shift)
64{
65 return nir_ior(b, nir_mask_shift(b, src, src_mask, src_left_shift), dst);
66}
67
68nir_def *nir_format_mask_uvec(nir_builder *b, nir_def *src,
69 const unsigned *bits);
70nir_def *nir_format_sign_extend_ivec(nir_builder *b, nir_def *src,
71 const unsigned *bits);
72nir_def *nir_format_unpack_int(nir_builder *b, nir_def *packed,
73 const unsigned *bits,
74 unsigned num_components,
75 bool sign_extend);
76
77static inline nir_def *
78nir_format_unpack_uint(nir_builder *b, nir_def *packed,
79 const unsigned *bits, unsigned num_components)
80{
81 return nir_format_unpack_int(b, packed, bits, num_components, false);
82}
83
84static inline nir_def *
85nir_format_unpack_sint(nir_builder *b, nir_def *packed,
86 const unsigned *bits, unsigned num_components)
87{
88 return nir_format_unpack_int(b, packed, bits, num_components, true);
89}
90
91nir_def *nir_format_pack_uint_unmasked(nir_builder *b, nir_def *color,
92 const unsigned *bits,
93 unsigned num_components);
94nir_def *nir_format_pack_uint_unmasked_ssa(nir_builder *b, nir_def *color,
95 nir_def *bits);
96nir_def *nir_format_pack_uint(nir_builder *b, nir_def *color,
97 const unsigned *bits,
98 unsigned num_components);
99
100nir_def *nir_format_bitcast_uvec_unmasked(nir_builder *b, nir_def *src,
101 unsigned src_bits,
102 unsigned dst_bits);
103
104nir_def *nir_format_unorm_to_float(nir_builder *b, nir_def *u,
105 const unsigned *bits);
106nir_def *nir_format_snorm_to_float(nir_builder *b, nir_def *s,
107 const unsigned *bits);
108nir_def *nir_format_float_to_unorm(nir_builder *b, nir_def *f,
109 const unsigned *bits);
110nir_def *nir_format_float_to_snorm(nir_builder *b, nir_def *f,
111 const unsigned *bits);
112
113nir_def *nir_format_float_to_half(nir_builder *b, nir_def *f);
114nir_def *nir_format_linear_to_srgb(nir_builder *b, nir_def *c);
115nir_def *nir_format_srgb_to_linear(nir_builder *b, nir_def *c);
116
117nir_def *nir_format_clamp_uint(nir_builder *b, nir_def *f,
118 const unsigned *bits);
119nir_def *nir_format_clamp_sint(nir_builder *b, nir_def *f,
120 const unsigned *bits);
121
122nir_def *nir_format_unpack_11f11f10f(nir_builder *b, nir_def *packed);
123nir_def *nir_format_pack_11f11f10f(nir_builder *b, nir_def *color);
124nir_def *nir_format_unpack_r9g9b9e5(nir_builder *b, nir_def *packed);
125nir_def *nir_format_pack_r9g9b9e5(nir_builder *b, nir_def *color);
126
127nir_def *nir_format_unpack_rgba(nir_builder *b, nir_def *packed,
128 enum pipe_format format);
129nir_def *nir_format_pack_rgba(nir_builder *b, enum pipe_format format,
130 nir_def *rgba);
131
132#ifdef __cplusplus
133} /* extern "C" */
134#endif
135
136#endif /* NIR_FORMAT_CONVERT_H */