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
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
// Copyright 2016 The Shaderc Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "libshaderc_util/spirv_tools_wrapper.h"
#include <algorithm>
#include <sstream>
#include "spirv-tools/optimizer.hpp"
namespace shaderc_util {
namespace {
// Gets the corresponding target environment used in SPIRV-Tools.
spv_target_env GetSpirvToolsTargetEnv(Compiler::TargetEnv env,
Compiler::TargetEnvVersion version) {
switch (env) {
case Compiler::TargetEnv::Vulkan:
switch (version) {
case Compiler::TargetEnvVersion::Default:
return SPV_ENV_VULKAN_1_0;
case Compiler::TargetEnvVersion::Vulkan_1_0:
return SPV_ENV_VULKAN_1_0;
case Compiler::TargetEnvVersion::Vulkan_1_1:
return SPV_ENV_VULKAN_1_1;
case Compiler::TargetEnvVersion::Vulkan_1_2:
return SPV_ENV_VULKAN_1_2;
case Compiler::TargetEnvVersion::Vulkan_1_3:
return SPV_ENV_VULKAN_1_3;
default:
break;
}
break;
case Compiler::TargetEnv::OpenGL:
return SPV_ENV_OPENGL_4_5;
case Compiler::TargetEnv::OpenGLCompat:
// Errors out before getting here. But the compiler wants us to handle
// enum anyway.
return SPV_ENV_OPENGL_4_5;
}
assert(false && "unexpected target environment or version");
return SPV_ENV_VULKAN_1_0;
}
} // anonymous namespace
bool SpirvToolsDisassemble(Compiler::TargetEnv env,
Compiler::TargetEnvVersion version,
const std::vector<uint32_t>& binary,
std::string* text_or_error) {
spvtools::SpirvTools tools(GetSpirvToolsTargetEnv(env, version));
std::ostringstream oss;
tools.SetMessageConsumer([&oss](spv_message_level_t, const char*,
const spv_position_t& position,
const char* message) {
oss << position.index << ": " << message;
});
const bool success =
tools.Disassemble(binary, text_or_error,
SPV_BINARY_TO_TEXT_OPTION_INDENT |
SPV_BINARY_TO_TEXT_OPTION_FRIENDLY_NAMES);
if (!success) {
*text_or_error = oss.str();
}
return success;
}
bool SpirvToolsAssemble(Compiler::TargetEnv env,
Compiler::TargetEnvVersion version,
const string_piece assembly, spv_binary* binary,
std::string* errors) {
auto spvtools_context =
spvContextCreate(GetSpirvToolsTargetEnv(env, version));
spv_diagnostic spvtools_diagnostic = nullptr;
*binary = nullptr;
errors->clear();
const bool success =
spvTextToBinary(spvtools_context, assembly.data(), assembly.size(),
binary, &spvtools_diagnostic) == SPV_SUCCESS;
if (!success) {
std::ostringstream oss;
oss << spvtools_diagnostic->position.line + 1 << ":"
<< spvtools_diagnostic->position.column + 1 << ": "
<< spvtools_diagnostic->error;
*errors = oss.str();
}
spvDiagnosticDestroy(spvtools_diagnostic);
spvContextDestroy(spvtools_context);
return success;
}
bool SpirvToolsOptimize(Compiler::TargetEnv env,
Compiler::TargetEnvVersion version,
const std::vector<PassId>& enabled_passes,
std::vector<uint32_t>* binary, std::string* errors) {
errors->clear();
if (enabled_passes.empty()) return true;
if (std::all_of(
enabled_passes.cbegin(), enabled_passes.cend(),
[](const PassId& pass) { return pass == PassId::kNullPass; })) {
return true;
}
spvtools::ValidatorOptions val_opts;
// This allows flexible memory layout for HLSL.
val_opts.SetSkipBlockLayout(true);
// This allows HLSL legalization regarding resources.
val_opts.SetRelaxLogicalPointer(true);
// This uses relaxed rules for pre-legalized HLSL.
val_opts.SetBeforeHlslLegalization(true);
spvtools::OptimizerOptions opt_opts;
opt_opts.set_validator_options(val_opts);
opt_opts.set_run_validator(true);
spvtools::Optimizer optimizer(GetSpirvToolsTargetEnv(env, version));
std::ostringstream oss;
optimizer.SetMessageConsumer(
[&oss](spv_message_level_t, const char*, const spv_position_t&,
const char* message) { oss << message << "\n"; });
for (const auto& pass : enabled_passes) {
switch (pass) {
case PassId::kLegalizationPasses:
optimizer.RegisterLegalizationPasses();
break;
case PassId::kPerformancePasses:
optimizer.RegisterPerformancePasses();
break;
case PassId::kSizePasses:
optimizer.RegisterSizePasses();
break;
case PassId::kNullPass:
// We actually don't need to do anything for null pass.
break;
case PassId::kStripDebugInfo:
optimizer.RegisterPass(spvtools::CreateStripDebugInfoPass());
break;
case PassId::kCompactIds:
optimizer.RegisterPass(spvtools::CreateCompactIdsPass());
break;
}
}
if (!optimizer.Run(binary->data(), binary->size(), binary, opt_opts)) {
*errors = oss.str();
return false;
}
return true;
}
} // namespace shaderc_util
|
