1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
/*
* Copyright © 2017 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* \file
* \brief SPIRV-V extension handling. See ARB_spirv_extensions
*/
#include <stdbool.h>
#include "spirv_extensions.h"
GLuint
_mesa_get_spirv_extension_count(struct gl_context *ctx)
{
if (ctx->Const.SpirVExtensions == NULL)
return 0;
return ctx->Const.SpirVExtensions->count;
}
const GLubyte *
_mesa_get_enabled_spirv_extension(struct gl_context *ctx,
GLuint index)
{
unsigned int n = 0;
if (ctx->Const.SpirVExtensions == NULL)
return (const GLubyte *) 0;
for (unsigned int i = 0; i < SPV_EXTENSIONS_COUNT; i++) {
if (ctx->Const.SpirVExtensions->supported[i]) {
if (n == index)
return (const GLubyte *) _mesa_spirv_extensions_to_string(i);
else
n++;
}
}
return (const GLubyte *) 0;
}
const char *
_mesa_spirv_extensions_to_string(enum SpvExtension ext)
{
#define STR(x) case x: return #x;
switch (ext) {
STR(SPV_KHR_16bit_storage);
STR(SPV_KHR_device_group);
STR(SPV_KHR_multiview);
STR(SPV_KHR_shader_ballot);
STR(SPV_KHR_shader_draw_parameters);
STR(SPV_KHR_storage_buffer_storage_class);
STR(SPV_KHR_subgroup_vote);
STR(SPV_KHR_variable_pointers);
STR(SPV_AMD_gcn_shader);
case SPV_EXTENSIONS_COUNT:
unreachable("Unknown SPIR-V extension");
}
#undef STR
return "unknown";
}
/**
* Sets the supported flags for known SPIR-V extensions based on the
* capabilites supported (spirv capabilities based on the spirv to nir
* support).
*
* One could argue that makes more sense in the other way around, as from the
* spec pov capabilities are enable for a given extension. But from our pov,
* we support or not (depending on the driver) some given capability, and
* spirv_to_nir check for capabilities not extensions. Also we usually fill
* first the supported capabilities, that are not always related to an
* extension.
*/
void
_mesa_fill_supported_spirv_extensions(struct spirv_supported_extensions *ext,
const struct spirv_supported_capabilities *cap)
{
memset(ext->supported, 0, sizeof(ext->supported));
ext->count = 0;
ext->supported[SPV_KHR_shader_draw_parameters] = cap->draw_parameters;
ext->supported[SPV_KHR_multiview] = cap->multiview;
ext->supported[SPV_KHR_storage_buffer_storage_class] = true;
ext->supported[SPV_KHR_variable_pointers] = cap->variable_pointers;
ext->supported[SPV_AMD_gcn_shader] = cap->amd_gcn_shader;
ext->supported[SPV_KHR_shader_ballot] = cap->subgroup_ballot;
ext->supported[SPV_KHR_subgroup_vote] = cap->subgroup_vote;
for (unsigned i = 0; i < SPV_EXTENSIONS_COUNT; i++) {
if (ext->supported[i])
ext->count++;
}
}
|
