| Flutter Impeller |

compiler.cc
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "impeller/compiler/compiler.h"
6
7 #include <cstdint>
8 #include <filesystem>
9 #include <memory>
10 #include <optional>
11 #include <sstream>
12 #include <string>
13 #include <utility>
14
15 #include "flutter/fml/paths.h"
16 #include "impeller/base/allocation.h"
17 #include "impeller/compiler/compiler_backend.h"
18 #include "impeller/compiler/constants.h"
19 #include "impeller/compiler/includer.h"
20 #include "impeller/compiler/logger.h"
21 #include "impeller/compiler/spirv_compiler.h"
22 #include "impeller/compiler/uniform_sorter.h"
23 #include "impeller/compiler/utilities.h"
24
25 namespace impeller {
26 namespace compiler {
27
28 static uint32_t ParseMSLVersion(const std::string& msl_version) {
29 std::stringstream sstream(msl_version);
30 std::string version_part;
31 uint32_t major = 1;
32 uint32_t minor = 2;
33 uint32_t patch = 0;
34 if (std::getline(sstream, version_part, '.')) {
35 major = std::stoi(version_part);
36 if (std::getline(sstream, version_part, '.')) {
37 minor = std::stoi(version_part);
38 if (std::getline(sstream, version_part, '.')) {
39 patch = std::stoi(version_part);
40 }
41 }
42 }
43 if (major < 1 || (major == 1 && minor < 2)) {
44 std::cerr << "--metal-version version must be at least 1.2. Have "
45 << msl_version << std::endl;
46 }
47 return spirv_cross::CompilerMSL::Options::make_msl_version(major, minor,
48 patch);
49 }
50
51 static CompilerBackend CreateMSLCompiler(
52 const spirv_cross::ParsedIR& ir,
53 const SourceOptions& source_options,
54 std::optional<uint32_t> msl_version_override = {}) {
55 auto sl_compiler = std::make_shared<spirv_cross::CompilerMSL>(ir);
56 spirv_cross::CompilerMSL::Options sl_options;
57 sl_options.platform =
58 TargetPlatformToMSLPlatform(source_options.target_platform);
59 sl_options.msl_version = msl_version_override.value_or(
60 ParseMSLVersion(source_options.metal_version));
61 sl_options.ios_use_simdgroup_functions =
62 sl_options.is_ios() &&
63 sl_options.msl_version >=
64 spirv_cross::CompilerMSL::Options::make_msl_version(2, 4, 0);
65 sl_options.use_framebuffer_fetch_subpasses = true;
66 sl_compiler->set_msl_options(sl_options);
67
68 // Sort the float and sampler uniforms according to their declared/decorated
69 // order. For user authored fragment shaders, the API for setting uniform
70 // values uses the index of the uniform in the declared order. By default, the
71 // metal backend of spirv-cross will order uniforms according to usage. To fix
72 // this, we use the sorted order and the add_msl_resource_binding API to force
73 // the ordering to match the declared order. Note that while this code runs
74 // for all compiled shaders, it will only affect vertex and fragment shaders
75 // due to the specified stage.
76 auto floats =
77 SortUniforms(&ir, sl_compiler.get(), spirv_cross::SPIRType::Float);
78 auto images =
79 SortUniforms(&ir, sl_compiler.get(), spirv_cross::SPIRType::SampledImage);
80
81 spv::ExecutionModel execution_model =
82 spv::ExecutionModel::ExecutionModelFragment;
83 if (source_options.type == SourceType::kVertexShader) {
84 execution_model = spv::ExecutionModel::ExecutionModelVertex;
85 }
86
87 uint32_t buffer_offset = 0;
88 uint32_t sampler_offset = 0;
89 for (auto& float_id : floats) {
90 sl_compiler->add_msl_resource_binding(
91 {.stage = execution_model,
92 .basetype = spirv_cross::SPIRType::BaseType::Float,
93 .desc_set = sl_compiler->get_decoration(float_id,
94 spv::DecorationDescriptorSet),
95 .binding =
96 sl_compiler->get_decoration(float_id, spv::DecorationBinding),
97 .count = 1u,
98 .msl_buffer = buffer_offset});
99 buffer_offset++;
100 }
101 for (auto& image_id : images) {
102 sl_compiler->add_msl_resource_binding({
103 .stage = execution_model,
104 .basetype = spirv_cross::SPIRType::BaseType::SampledImage,
105 .desc_set =
106 sl_compiler->get_decoration(image_id, spv::DecorationDescriptorSet),
107 .binding =
108 sl_compiler->get_decoration(image_id, spv::DecorationBinding),
109 .count = 1u,
110 // A sampled image is both an image and a sampler, so both
111 // offsets need to be set or depending on the partiular shader
112 // the bindings may be incorrect.
113 .msl_texture = sampler_offset,
114 .msl_sampler = sampler_offset,
115 });
116 sampler_offset++;
117 }
118
119 return CompilerBackend(sl_compiler);
120 }
121
122 static CompilerBackend CreateVulkanCompiler(
123 const spirv_cross::ParsedIR& ir,
124 const SourceOptions& source_options) {
125 // TODO(dnfield): It seems like what we'd want is a CompilerGLSL with
126 // vulkan_semantics set to true, but that has regressed some things on GLES
127 // somehow. In the mean time, go back to using CompilerMSL, but set the Metal
128 // Language version to something really high so that we don't get weird
129 // complaints about using Metal features while trying to build Vulkan shaders.
130 // https://github.com/flutter/flutter/issues/123795
131 return CreateMSLCompiler(
132 ir, source_options,
133 spirv_cross::CompilerMSL::Options::make_msl_version(3, 0, 0));
134 }
135
136 static CompilerBackend CreateGLSLCompiler(const spirv_cross::ParsedIR& ir,
137 const SourceOptions& source_options) {
138 auto gl_compiler = std::make_shared<spirv_cross::CompilerGLSL>(ir);
139
140 // Walk the variables and insert the external image extension if any of them
141 // begins with the external texture prefix. Unfortunately, we can't walk
142 // `gl_compiler->get_shader_resources().separate_samplers` until the compiler
143 // is further along.
144 //
145 // Unfortunately, we can't just let the shader author add this extension and
146 // use `samplerExternalOES` directly because compiling to spirv requires the
147 // source language profile to be at least 310 ES, but this extension is
148 // incompatible with ES 310+.
149 for (auto& id : ir.ids_for_constant_or_variable) {
150 if (StringStartsWith(ir.get_name(id), kExternalTexturePrefix)) {
151 gl_compiler->require_extension("GL_OES_EGL_image_external");
152 break;
153 }
154 }
155
156 spirv_cross::CompilerGLSL::Options sl_options;
157 sl_options.force_zero_initialized_variables = true;
158 sl_options.vertex.fixup_clipspace = true;
159 if (source_options.target_platform == TargetPlatform::kOpenGLES ||
160 source_options.target_platform == TargetPlatform::kRuntimeStageGLES) {
161 sl_options.version = source_options.gles_language_version > 0
162 ? source_options.gles_language_version
163 : 100;
164 sl_options.es = true;
165 if (source_options.require_framebuffer_fetch &&
166 source_options.type == SourceType::kFragmentShader) {
167 gl_compiler->remap_ext_framebuffer_fetch(0, 0, true);
168 }
169 gl_compiler->set_variable_type_remap_callback(
170 [&](const spirv_cross::SPIRType& type, const std::string& var_name,
171 std::string& name_of_type) {
172 if (StringStartsWith(var_name, kExternalTexturePrefix)) {
173 name_of_type = "samplerExternalOES";
174 }
175 });
176 } else {
177 sl_options.version = source_options.gles_language_version > 0
178 ? source_options.gles_language_version
179 : 120;
180 sl_options.es = false;
181 }
182 gl_compiler->set_common_options(sl_options);
183 return CompilerBackend(gl_compiler);
184 }
185
186 static CompilerBackend CreateSkSLCompiler(const spirv_cross::ParsedIR& ir,
187 const SourceOptions& source_options) {
188 auto sksl_compiler = std::make_shared<CompilerSkSL>(ir);
189 return CompilerBackend(sksl_compiler);
190 }
191
192 static bool EntryPointMustBeNamedMain(TargetPlatform platform) {
193 switch (platform) {
194 case TargetPlatform::kUnknown:
195 FML_UNREACHABLE();
196 case TargetPlatform::kMetalDesktop:
197 case TargetPlatform::kMetalIOS:
198 case TargetPlatform::kVulkan:
199 case TargetPlatform::kRuntimeStageMetal:
200 case TargetPlatform::kRuntimeStageVulkan:
201 return false;
202 case TargetPlatform::kSkSL:
203 case TargetPlatform::kOpenGLES:
204 case TargetPlatform::kOpenGLDesktop:
205 case TargetPlatform::kRuntimeStageGLES:
206 return true;
207 }
208 FML_UNREACHABLE();
209 }
210
211 static CompilerBackend CreateCompiler(const spirv_cross::ParsedIR& ir,
212 const SourceOptions& source_options) {
213 CompilerBackend compiler;
214 switch (source_options.target_platform) {
215 case TargetPlatform::kMetalDesktop:
216 case TargetPlatform::kMetalIOS:
217 case TargetPlatform::kRuntimeStageMetal:
218 compiler = CreateMSLCompiler(ir, source_options);
219 break;
220 case TargetPlatform::kVulkan:
221 case TargetPlatform::kRuntimeStageVulkan:
222 compiler = CreateVulkanCompiler(ir, source_options);
223 break;
224 case TargetPlatform::kUnknown:
225 case TargetPlatform::kOpenGLES:
226 case TargetPlatform::kOpenGLDesktop:
227 case TargetPlatform::kRuntimeStageGLES:
228 compiler = CreateGLSLCompiler(ir, source_options);
229 break;
230 case TargetPlatform::kSkSL:
231 compiler = CreateSkSLCompiler(ir, source_options);
232 }
233 if (!compiler) {
234 return {};
235 }
236 auto* backend = compiler.GetCompiler();
237 if (!EntryPointMustBeNamedMain(source_options.target_platform) &&
238 source_options.source_language == SourceLanguage::kGLSL) {
239 backend->rename_entry_point("main", source_options.entry_point_name,
240 ToExecutionModel(source_options.type));
241 }
242 return compiler;
243 }
244
245 Compiler::Compiler(const std::shared_ptr<const fml::Mapping>& source_mapping,
246 const SourceOptions& source_options,
247 Reflector::Options reflector_options)
248 : options_(source_options) {
249 if (!source_mapping || source_mapping->GetMapping() == nullptr) {
250 COMPILER_ERROR(error_stream_)
251 << "Could not read shader source or shader source was empty.";
252 return;
253 }
254
255 if (source_options.target_platform == TargetPlatform::kUnknown) {
256 COMPILER_ERROR(error_stream_) << "Target platform not specified.";
257 return;
258 }
259
260 SPIRVCompilerOptions spirv_options;
261
262 // Make sure reflection is as effective as possible. The generated shaders
263 // will be processed later by backend specific compilers.
264 spirv_options.generate_debug_info = true;
265
266 switch (options_.source_language) {
267 case SourceLanguage::kGLSL:
268 // Expects GLSL 4.60 (Core Profile).
269 // https://www.khronos.org/registry/OpenGL/specs/gl/GLSLangSpec.4.60.pdf
270 spirv_options.source_langauge =
271 shaderc_source_language::shaderc_source_language_glsl;
272 spirv_options.source_profile = SPIRVCompilerSourceProfile{
273 shaderc_profile::shaderc_profile_core, //
274 460, //
275 };
276 break;
277 case SourceLanguage::kHLSL:
278 spirv_options.source_langauge =
279 shaderc_source_language::shaderc_source_language_hlsl;
280 break;
281 case SourceLanguage::kUnknown:
282 COMPILER_ERROR(error_stream_) << "Source language invalid.";
283 return;
284 }
285
286 switch (source_options.target_platform) {
287 case TargetPlatform::kMetalDesktop:
288 case TargetPlatform::kMetalIOS: {
289 SPIRVCompilerTargetEnv target;
290
291 if (source_options.use_half_textures) {
292 target.env = shaderc_target_env::shaderc_target_env_opengl;
293 target.version = shaderc_env_version::shaderc_env_version_opengl_4_5;
294 target.spirv_version = shaderc_spirv_version::shaderc_spirv_version_1_0;
295 } else {
296 target.env = shaderc_target_env::shaderc_target_env_vulkan;
297 target.version = shaderc_env_version::shaderc_env_version_vulkan_1_1;
298 target.spirv_version = shaderc_spirv_version::shaderc_spirv_version_1_3;
299 }
300
301 spirv_options.target = target;
302 } break;
303 case TargetPlatform::kOpenGLES:
304 case TargetPlatform::kOpenGLDesktop:
305 case TargetPlatform::kVulkan: {
306 SPIRVCompilerTargetEnv target;
307
308 target.env = shaderc_target_env::shaderc_target_env_vulkan;
309 target.version = shaderc_env_version::shaderc_env_version_vulkan_1_1;
310 target.spirv_version = shaderc_spirv_version::shaderc_spirv_version_1_3;
311
312 spirv_options.target = target;
313 } break;
314 case TargetPlatform::kRuntimeStageMetal:
315 case TargetPlatform::kRuntimeStageGLES:
316 case TargetPlatform::kRuntimeStageVulkan: {
317 SPIRVCompilerTargetEnv target;
318
319 target.env = shaderc_target_env::shaderc_target_env_opengl;
320 target.version = shaderc_env_version::shaderc_env_version_opengl_4_5;
321 target.spirv_version = shaderc_spirv_version::shaderc_spirv_version_1_0;
322
323 spirv_options.target = target;
324 spirv_options.macro_definitions.push_back("IMPELLER_GRAPHICS_BACKEND");
325 } break;
326 case TargetPlatform::kSkSL: {
327 SPIRVCompilerTargetEnv target;
328
329 target.env = shaderc_target_env::shaderc_target_env_opengl;
330 target.version = shaderc_env_version::shaderc_env_version_opengl_4_5;
331 target.spirv_version = shaderc_spirv_version::shaderc_spirv_version_1_0;
332
333 // When any optimization level above 'zero' is enabled, the phi merges at
334 // loop continue blocks are rendered using syntax that is supported in
335 // GLSL, but not in SkSL.
336 // https://bugs.chromium.org/p/skia/issues/detail?id=13518.
337 spirv_options.optimization_level =
338 shaderc_optimization_level::shaderc_optimization_level_zero;
339 spirv_options.target = target;
340 spirv_options.macro_definitions.push_back("SKIA_GRAPHICS_BACKEND");
341 } break;
342 case TargetPlatform::kUnknown:
343 COMPILER_ERROR(error_stream_) << "Target platform invalid.";
344 return;
345 }
346
347 // Implicit definition that indicates that this compilation is for the device
348 // (instead of the host).
349 spirv_options.macro_definitions.push_back("IMPELLER_DEVICE");
350 for (const auto& define : source_options.defines) {
351 spirv_options.macro_definitions.push_back(define);
352 }
353
354 std::vector<std::string> included_file_names;
355 spirv_options.includer = std::make_shared<Includer>(
356 options_.working_directory, options_.include_dirs,
357 [&included_file_names](auto included_name) {
358 included_file_names.emplace_back(std::move(included_name));
359 });
360
361 // SPIRV Generation.
362 SPIRVCompiler spv_compiler(source_options, source_mapping);
363
364 spirv_assembly_ = spv_compiler.CompileToSPV(
365 error_stream_, spirv_options.BuildShadercOptions());
366
367 if (!spirv_assembly_) {
368 return;
369 } else {
370 included_file_names_ = std::move(included_file_names);
371 }
372
373 // SL Generation.
374 spirv_cross::Parser parser(
375 reinterpret_cast<const uint32_t*>(spirv_assembly_->GetMapping()),
376 spirv_assembly_->GetSize() / sizeof(uint32_t));
377 // The parser and compiler must be run separately because the parser contains
378 // meta information (like type member names) that are useful for reflection.
379 parser.parse();
380
381 const auto parsed_ir =
382 std::make_shared<spirv_cross::ParsedIR>(parser.get_parsed_ir());
383
384 auto sl_compiler = CreateCompiler(*parsed_ir, options_);
385
386 if (!sl_compiler) {
387 COMPILER_ERROR(error_stream_)
388 << "Could not create compiler for target platform.";
389 return;
390 }
391
392 // We need to invoke the compiler even if we don't use the SL mapping later
393 // for Vulkan. The reflector needs information that is only valid after a
394 // successful compilation call.
395 auto sl_compilation_result =
396 CreateMappingWithString(sl_compiler.GetCompiler()->compile());
397
398 // If the target is Vulkan, our shading language is SPIRV which we already
399 // have. We just need to strip it of debug information. If it isn't, we need
400 // to invoke the appropriate compiler to compile the SPIRV to the target SL.
401 if (source_options.target_platform == TargetPlatform::kVulkan) {
402 auto stripped_spirv_options = spirv_options;
403 stripped_spirv_options.generate_debug_info = false;
404 sl_mapping_ = spv_compiler.CompileToSPV(
405 error_stream_, stripped_spirv_options.BuildShadercOptions());
406 } else {
407 sl_mapping_ = sl_compilation_result;
408 }
409
410 if (!sl_mapping_) {
411 COMPILER_ERROR(error_stream_) << "Could not generate SL from SPIRV";
412 return;
413 }
414
415 reflector_ = std::make_unique<Reflector>(std::move(reflector_options), //
416 parsed_ir, //
417 GetSLShaderSource(), //
418 sl_compiler //
419 );
420
421 if (!reflector_->IsValid()) {
422 COMPILER_ERROR(error_stream_)
423 << "Could not complete reflection on generated shader.";
424 return;
425 }
426
427 is_valid_ = true;
428 }
429
430 Compiler::~Compiler() = default;
431
432 std::shared_ptr<fml::Mapping> Compiler::GetSPIRVAssembly() const {
433 return spirv_assembly_;
434 }
435
436 std::shared_ptr<fml::Mapping> Compiler::GetSLShaderSource() const {
437 return sl_mapping_;
438 }
439
440 bool Compiler::IsValid() const {
441 return is_valid_;
442 }
443
444 std::string Compiler::GetSourcePrefix() const {
445 std::stringstream stream;
446 stream << options_.file_name << ": ";
447 return stream.str();
448 }
449
450 std::string Compiler::GetErrorMessages() const {
451 return error_stream_.str();
452 }
453
454 const std::vector<std::string>& Compiler::GetIncludedFileNames() const {
455 return included_file_names_;
456 }
457
458 static std::string JoinStrings(std::vector<std::string> items,
459 const std::string& separator) {
460 std::stringstream stream;
461 for (size_t i = 0, count = items.size(); i < count; i++) {
462 const auto is_last = (i == count - 1);
463
464 stream << items[i];
465 if (!is_last) {
466 stream << separator;
467 }
468 }
469 return stream.str();
470 }
471
472 std::string Compiler::GetDependencyNames(const std::string& separator) const {
473 std::vector<std::string> dependencies = included_file_names_;
474 dependencies.push_back(options_.file_name);
475 return JoinStrings(dependencies, separator);
476 }
477
478 std::unique_ptr<fml::Mapping> Compiler::CreateDepfileContents(
479 std::initializer_list<std::string> targets_names) const {
480 // https://github.com/ninja-build/ninja/blob/master/src/depfile_parser.cc#L28
481 const auto targets = JoinStrings(targets_names, " ");
482 const auto dependencies = GetDependencyNames(" ");
483
484 std::stringstream stream;
485 stream << targets << ": " << dependencies << "\n";
486
487 auto contents = std::make_shared<std::string>(stream.str());
488 return std::make_unique<fml::NonOwnedMapping>(
489 reinterpret_cast<const uint8_t*>(contents->data()), contents->size(),
490 [contents](auto, auto) {});
491 }
492
493 const Reflector* Compiler::GetReflector() const {
494 return reflector_.get();
495 }
496
497 } // namespace compiler
498 } // namespace impeller
impeller::compiler::Compiler::~Compiler
~Compiler()
impeller::compiler::CreateVulkanCompiler
static CompilerBackend CreateVulkanCompiler(const spirv_cross::ParsedIR &ir, const SourceOptions &source_options)
Definition: compiler.cc:122
uniform_sorter.h
impeller::compiler::SourceOptions::type
SourceType type
Definition: source_options.h:21
impeller::compiler::Compiler::CreateDepfileContents
std::unique_ptr< fml::Mapping > CreateDepfileContents(std::initializer_list< std::string > targets) const
Definition: compiler.cc:478
impeller::compiler::SPIRVCompiler::CompileToSPV
std::shared_ptr< fml::Mapping > CompileToSPV(std::stringstream &error_stream, const shaderc::CompileOptions &spirv_options) const
Definition: spirv_compiler.cc:21
impeller::compiler::SPIRVCompilerOptions::generate_debug_info
bool generate_debug_info
Definition: spirv_compiler.h:33
logger.h
impeller::compiler::CreateSkSLCompiler
static CompilerBackend CreateSkSLCompiler(const spirv_cross::ParsedIR &ir, const SourceOptions &source_options)
Definition: compiler.cc:186
allocation.h
impeller::compiler::SourceOptions::include_dirs
std::vector< IncludeDir > include_dirs
Definition: source_options.h:25
impeller::compiler::CompilerBackend
Definition: compiler_backend.h:21
impeller::compiler::EntryPointMustBeNamedMain
static bool EntryPointMustBeNamedMain(TargetPlatform platform)
Definition: compiler.cc:192
impeller::compiler::ParseMSLVersion
static uint32_t ParseMSLVersion(const std::string &msl_version)
Definition: compiler.cc:28
impeller::compiler::TargetPlatform::kMetalDesktop
@ kMetalDesktop
impeller::compiler::SourceOptions::metal_version
std::string metal_version
Definition: source_options.h:31
impeller::compiler::TargetPlatformToMSLPlatform
spirv_cross::CompilerMSL::Options::Platform TargetPlatformToMSLPlatform(TargetPlatform platform)
Definition: types.cc:212
impeller::compiler::SourceOptions
Definition: source_options.h:20
impeller::compiler::SourceOptions::use_half_textures
bool use_half_textures
Whether half-precision textures should be supported, requiring opengl semantics. Only used on metal t...
Definition: source_options.h:35
impeller::compiler::SPIRVCompilerOptions::includer
std::shared_ptr< Includer > includer
Definition: spirv_compiler.h:50
impeller::compiler::CreateGLSLCompiler
static CompilerBackend CreateGLSLCompiler(const spirv_cross::ParsedIR &ir, const SourceOptions &source_options)
Definition: compiler.cc:136
impeller::compiler::TargetPlatform::kMetalIOS
@ kMetalIOS
impeller::compiler::Compiler::Compiler
Compiler(const std::shared_ptr< const fml::Mapping > &source_mapping, const SourceOptions &options, Reflector::Options reflector_options)
Definition: compiler.cc:245
impeller::compiler::TargetPlatform
TargetPlatform
Definition: types.h:28
impeller::compiler::SourceLanguage::kGLSL
@ kGLSL
impeller::compiler::SPIRVCompilerOptions::source_profile
std::optional< SPIRVCompilerSourceProfile > source_profile
Definition: spirv_compiler.h:38
impeller::compiler::SPIRVCompilerTargetEnv::env
shaderc_target_env env
Definition: spirv_compiler.h:25
includer.h
impeller::compiler::SourceOptions::source_language
SourceLanguage source_language
Definition: source_options.h:23
impeller::compiler::kExternalTexturePrefix
constexpr char kExternalTexturePrefix[]
Definition: constants.h:11
impeller::SortUniforms
std::vector< spirv_cross::ID > SortUniforms(const spirv_cross::ParsedIR *ir, const spirv_cross::Compiler *compiler, std::optional< spirv_cross::SPIRType::BaseType > type_filter, bool include)
Sorts uniform declarations in an IR according to decoration order.
Definition: uniform_sorter.cc:11
impeller::compiler::SPIRVCompilerOptions::target
std::optional< SPIRVCompilerTargetEnv > target
Definition: spirv_compiler.h:46
impeller::compiler::SourceLanguage::kHLSL
@ kHLSL
impeller::compiler::TargetPlatform::kVulkan
@ kVulkan
impeller::compiler::SourceOptions::entry_point_name
std::string entry_point_name
Definition: source_options.h:27
impeller::compiler::SourceType::kFragmentShader
@ kFragmentShader
impeller::compiler::Compiler::GetErrorMessages
std::string GetErrorMessages() const
Definition: compiler.cc:450
impeller::compiler::SourceOptions::require_framebuffer_fetch
bool require_framebuffer_fetch
Whether the GLSL framebuffer fetch extension will be required.
Definition: source_options.h:40
impeller::compiler::TargetPlatform::kRuntimeStageVulkan
@ kRuntimeStageVulkan
impeller::compiler::Compiler::GetSPIRVAssembly
std::shared_ptr< fml::Mapping > GetSPIRVAssembly() const
Definition: compiler.cc:432
impeller::compiler::SourceOptions::gles_language_version
uint32_t gles_language_version
Definition: source_options.h:28
impeller::compiler::SPIRVCompilerOptions
Definition: spirv_compiler.h:32
impeller::compiler::SPIRVCompilerSourceProfile
Definition: spirv_compiler.h:19
impeller::compiler::JoinStrings
static std::string JoinStrings(std::vector< std::string > items, const std::string &separator)
Definition: compiler.cc:458
impeller::compiler::Reflector
Definition: reflector.h:51
impeller::compiler::Compiler::GetReflector
const Reflector * GetReflector() const
Definition: compiler.cc:493
impeller::compiler::SourceOptions::file_name
std::string file_name
Definition: source_options.h:26
impeller::compiler::Reflector::Options
Definition: reflector.h:53
compiler_backend.h
compiler.h
impeller::compiler::SPIRVCompilerTargetEnv::version
shaderc_env_version version
Definition: spirv_compiler.h:26
spirv_compiler.h
utilities.h
impeller::compiler::SourceLanguage::kUnknown
@ kUnknown
impeller::compiler::CompilerBackend::GetCompiler
spirv_cross::Compiler * GetCompiler()
Definition: compiler_backend.cc:51
impeller::compiler::ToExecutionModel
spv::ExecutionModel ToExecutionModel(SourceType type)
Definition: types.cc:198
impeller::compiler::SPIRVCompilerOptions::source_langauge
std::optional< shaderc_source_language > source_langauge
Definition: spirv_compiler.h:37
impeller::compiler::SourceOptions::working_directory
std::shared_ptr< fml::UniqueFD > working_directory
Definition: source_options.h:24
impeller::compiler::SPIRVCompilerTargetEnv::spirv_version
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Definition: spirv_compiler.h:28
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Definition: source_options.h:22
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Definition: spirv_compiler.h:48
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Definition: compiler.cc:440
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Definition: spirv_compiler.cc:276
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Definition: source_options.h:29
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Definition: compiler.cc:51
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Definition: compiler.cc:211
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Definition: spirv_compiler.h:55
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Definition: utilities.cc:87
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Definition: aiks_context.cc:10
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Definition: logger.h:39
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Definition: spirv_compiler.h:40
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Definition: spirv_compiler.h:24