| // Copyright 2020 The Tint Authors. |
| // |
| // 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 <charconv> |
| #include <cstdio> |
| #include <fstream> |
| #include <iostream> |
| #include <limits> |
| #include <memory> |
| #include <optional> |
| #include <sstream> |
| #include <string> |
| #include <unordered_map> |
| #include <vector> |
| |
| #if TINT_BUILD_GLSL_WRITER |
| #include "glslang/Public/ResourceLimits.h" |
| #include "glslang/Public/ShaderLang.h" |
| #endif // TINT_BUILD_GLSL_WRITER |
| |
| #if TINT_BUILD_SYNTAX_TREE_WRITER |
| #include "src/tint/lang/wgsl/syntax_tree_writer/generator.h" // nogncheck |
| |
| #endif // TINT_BUILD_SYNTAX_TREE_WRITER |
| |
| #if TINT_BUILD_SPV_READER || TINT_BUILD_SPV_WRITER |
| #include "spirv-tools/libspirv.hpp" |
| #endif // TINT_BUILD_SPV_READER || TINT_BUILD_SPV_WRITER |
| |
| #include "src/tint/cmd/generate_external_texture_bindings.h" |
| #include "src/tint/cmd/helper.h" |
| #include "src/tint/lang/hlsl/validate/val.h" |
| #include "src/tint/lang/msl/validate/val.h" |
| #include "src/tint/lang/wgsl/ast/module.h" |
| #include "src/tint/utils/cli/cli.h" |
| #include "src/tint/utils/command/command.h" |
| #include "src/tint/utils/containers/transform.h" |
| #include "src/tint/utils/macros/defer.h" |
| #include "src/tint/utils/text/string.h" |
| #include "src/tint/utils/text/string_stream.h" |
| #include "tint/tint.h" |
| |
| #if TINT_BUILD_IR |
| #include "src/tint/lang/core/ir/disassembler.h" // nogncheck |
| #include "src/tint/lang/core/ir/from_program.h" // nogncheck |
| #include "src/tint/lang/core/ir/module.h" // nogncheck |
| #endif // TINT_BUILD_IR |
| |
| #if TINT_BUILD_SPV_WRITER |
| #define SPV_WRITER_ONLY(x) x |
| #else |
| #define SPV_WRITER_ONLY(x) |
| #endif |
| |
| #if TINT_BUILD_WGSL_WRITER |
| #define WGSL_WRITER_ONLY(x) x |
| #else |
| #define WGSL_WRITER_ONLY(x) |
| #endif |
| |
| #if TINT_BUILD_MSL_WRITER |
| #define MSL_WRITER_ONLY(x) x |
| #else |
| #define MSL_WRITER_ONLY(x) |
| #endif |
| |
| #if TINT_BUILD_HLSL_WRITER |
| #define HLSL_WRITER_ONLY(x) x |
| #else |
| #define HLSL_WRITER_ONLY(x) |
| #endif |
| |
| #if TINT_BUILD_GLSL_WRITER |
| #define GLSL_WRITER_ONLY(x) x |
| #else |
| #define GLSL_WRITER_ONLY(x) |
| #endif |
| |
| namespace { |
| |
| /// Prints the given hash value in a format string that the end-to-end test runner can parse. |
| void PrintHash(uint32_t hash) { |
| std::cout << "<<HASH: 0x" << std::hex << hash << ">>" << std::endl; |
| } |
| |
| enum class Format { |
| kUnknown, |
| kNone, |
| kSpirv, |
| kSpvAsm, |
| kWgsl, |
| kMsl, |
| kHlsl, |
| kGlsl, |
| }; |
| |
| struct Options { |
| bool verbose = false; |
| |
| std::string input_filename; |
| std::string output_file = "-"; // Default to stdout |
| |
| bool parse_only = false; |
| bool disable_workgroup_init = false; |
| bool validate = false; |
| bool print_hash = false; |
| bool dump_inspector_bindings = false; |
| bool enable_robustness = false; |
| |
| std::unordered_set<uint32_t> skip_hash; |
| |
| Format format = Format::kUnknown; |
| |
| bool emit_single_entry_point = false; |
| std::string ep_name; |
| |
| bool rename_all = false; |
| |
| #if TINT_BUILD_SPV_READER |
| tint::reader::spirv::Options spirv_reader_options; |
| #endif |
| |
| tint::utils::Vector<std::string, 4> transforms; |
| |
| std::string fxc_path; |
| std::string dxc_path; |
| std::string xcrun_path; |
| tint::utils::Hashmap<std::string, double, 8> overrides; |
| std::optional<tint::sem::BindingPoint> hlsl_root_constant_binding_point; |
| |
| #if TINT_BUILD_IR |
| bool dump_ir = false; |
| bool use_ir = false; |
| #endif // TINT_BUILD_IR |
| |
| #if TINT_BUILD_SYNTAX_TREE_WRITER |
| bool dump_ast = false; |
| #endif // TINT_BUILD_SYNTAX_TREE_WRITER |
| }; |
| |
| /// @param filename the filename to inspect |
| /// @returns the inferred format for the filename suffix |
| Format infer_format(const std::string& filename) { |
| (void)filename; |
| |
| #if TINT_BUILD_SPV_WRITER |
| if (tint::utils::HasSuffix(filename, ".spv")) { |
| return Format::kSpirv; |
| } |
| if (tint::utils::HasSuffix(filename, ".spvasm")) { |
| return Format::kSpvAsm; |
| } |
| #endif // TINT_BUILD_SPV_WRITER |
| |
| #if TINT_BUILD_WGSL_WRITER |
| if (tint::utils::HasSuffix(filename, ".wgsl")) { |
| return Format::kWgsl; |
| } |
| #endif // TINT_BUILD_WGSL_WRITER |
| |
| #if TINT_BUILD_MSL_WRITER |
| if (tint::utils::HasSuffix(filename, ".metal")) { |
| return Format::kMsl; |
| } |
| #endif // TINT_BUILD_MSL_WRITER |
| |
| #if TINT_BUILD_HLSL_WRITER |
| if (tint::utils::HasSuffix(filename, ".hlsl")) { |
| return Format::kHlsl; |
| } |
| #endif // TINT_BUILD_HLSL_WRITER |
| |
| return Format::kUnknown; |
| } |
| |
| bool ParseArgs(tint::utils::VectorRef<std::string_view> arguments, |
| std::string transform_names, |
| Options* opts) { |
| using namespace tint::utils::cli; // NOLINT(build/namespaces) |
| |
| tint::utils::Vector<EnumName<Format>, 8> format_enum_names{ |
| EnumName(Format::kNone, "none"), |
| }; |
| |
| SPV_WRITER_ONLY(format_enum_names.Emplace(Format::kSpirv, "spirv")); |
| SPV_WRITER_ONLY(format_enum_names.Emplace(Format::kSpvAsm, "spvasm")); |
| WGSL_WRITER_ONLY(format_enum_names.Emplace(Format::kWgsl, "wgsl")); |
| MSL_WRITER_ONLY(format_enum_names.Emplace(Format::kMsl, "msl")); |
| HLSL_WRITER_ONLY(format_enum_names.Emplace(Format::kHlsl, "hlsl")); |
| GLSL_WRITER_ONLY(format_enum_names.Emplace(Format::kGlsl, "glsl")); |
| |
| OptionSet options; |
| auto& fmt = options.Add<EnumOption<Format>>("format", |
| R"(Output format. |
| If not provided, will be inferred from output filename extension: |
| .spvasm -> spvasm |
| .spv -> spirv |
| .wgsl -> wgsl |
| .metal -> msl |
| .hlsl -> hlsl)", |
| format_enum_names, ShortName{"f"}); |
| TINT_DEFER(opts->format = fmt.value.value_or(Format::kUnknown)); |
| |
| auto& ep = options.Add<StringOption>("entry-point", "Output single entry point", |
| ShortName{"ep"}, Parameter{"name"}); |
| TINT_DEFER({ |
| if (ep.value.has_value()) { |
| opts->ep_name = *ep.value; |
| opts->emit_single_entry_point = true; |
| } |
| }); |
| |
| auto& output = options.Add<StringOption>("output-name", "Output file name", ShortName{"o"}, |
| Parameter{"name"}); |
| TINT_DEFER(opts->output_file = output.value.value_or("")); |
| |
| auto& fxc_path = |
| options.Add<StringOption>("fxc", R"(Path to FXC dll, used to validate HLSL output. |
| When specified, automatically enables HLSL validation with FXC)", |
| Parameter{"path"}); |
| TINT_DEFER(opts->fxc_path = fxc_path.value.value_or("")); |
| |
| auto& dxc_path = |
| options.Add<StringOption>("dxc", R"(Path to DXC dll, used to validate HLSL output. |
| When specified, automatically enables HLSL validation with DXC)", |
| Parameter{"path"}); |
| TINT_DEFER(opts->dxc_path = dxc_path.value.value_or("")); |
| |
| auto& xcrun = |
| options.Add<StringOption>("xcrun", R"(Path to xcrun executable, used to validate MSL output. |
| When specified, automatically enables MSL validation)", |
| Parameter{"path"}); |
| TINT_DEFER({ |
| if (xcrun.value.has_value()) { |
| opts->xcrun_path = *xcrun.value; |
| opts->validate = true; |
| } |
| }); |
| |
| #if TINT_BUILD_IR |
| auto& dump_ir = options.Add<BoolOption>("dump-ir", "Writes the IR to stdout", Alias{"emit-ir"}, |
| Default{false}); |
| TINT_DEFER(opts->dump_ir = *dump_ir.value); |
| |
| auto& use_ir = options.Add<BoolOption>( |
| "use-ir", "Use the IR for writers and transforms when possible", Default{false}); |
| TINT_DEFER(opts->use_ir = *use_ir.value); |
| #endif // TINT_BUILD_IR |
| |
| auto& verbose = |
| options.Add<BoolOption>("verbose", "Verbose output", ShortName{"v"}, Default{false}); |
| TINT_DEFER(opts->verbose = *verbose.value); |
| |
| auto& validate = options.Add<BoolOption>( |
| "validate", "Validates the generated shader with all available validators", Default{false}); |
| TINT_DEFER(opts->validate = *validate.value); |
| |
| auto& parse_only = |
| options.Add<BoolOption>("parse-only", "Stop after parsing the input", Default{false}); |
| TINT_DEFER(opts->parse_only = *parse_only.value); |
| |
| #if TINT_BUILD_SPV_READER |
| auto& allow_nud = |
| options.Add<BoolOption>("allow-non-uniform-derivatives", |
| R"(When using SPIR-V input, allow non-uniform derivatives by |
| inserting a module-scope directive to suppress any uniformity |
| violations that may be produced)", |
| Default{false}); |
| TINT_DEFER({ |
| if (allow_nud.value.value_or(false)) { |
| opts->spirv_reader_options.allow_non_uniform_derivatives = true; |
| } |
| }); |
| #endif |
| |
| auto& disable_wg_init = options.Add<BoolOption>( |
| "disable-workgroup-init", "Disable workgroup memory zero initialization", Default{false}); |
| TINT_DEFER(opts->disable_workgroup_init = *disable_wg_init.value); |
| |
| auto& rename_all = options.Add<BoolOption>("rename-all", "Renames all symbols", Default{false}); |
| TINT_DEFER(opts->rename_all = *rename_all.value); |
| |
| auto& dump_inspector_bindings = options.Add<BoolOption>( |
| "dump-inspector-bindings", "Dump reflection data about bindings to stdout", |
| Alias{"emit-inspector-bindings"}, Default{false}); |
| TINT_DEFER(opts->dump_inspector_bindings = *dump_inspector_bindings.value); |
| |
| #if TINT_BUILD_SYNTAX_TREE_WRITER |
| auto& dump_ast = options.Add<BoolOption>("dump-ast", "Writes the AST to stdout", |
| Alias{"emit-ast"}, Default{false}); |
| TINT_DEFER(opts->dump_ast = *dump_ast.value); |
| #endif // TINT_BUILD_SYNTAX_TREE_WRITER |
| |
| auto& print_hash = options.Add<BoolOption>("print-hash", "Emit the hash of the output program", |
| Default{false}); |
| TINT_DEFER(opts->print_hash = *print_hash.value); |
| |
| auto& transforms = |
| options.Add<StringOption>("transform", R"(Runs transforms, name list is comma separated |
| Available transforms: |
| )" + transform_names, |
| ShortName{"t"}); |
| TINT_DEFER({ |
| if (transforms.value.has_value()) { |
| for (auto transform : tint::utils::Split(*transforms.value, ",")) { |
| opts->transforms.Push(std::string(transform)); |
| } |
| } |
| }); |
| |
| auto& hlsl_rc_bp = options.Add<StringOption>("hlsl-root-constant-binding-point", |
| R"(Binding point for root constant. |
| Specify the binding point for generated uniform buffer |
| used for num_workgroups in HLSL. If not specified, then |
| default to binding 0 of the largest used group plus 1, |
| or group 0 if no resource bound)"); |
| |
| auto& skip_hash = options.Add<StringOption>( |
| "skip-hash", R"(Skips validation if the hash of the output is equal to any |
| of the hash codes in the comma separated list of hashes)"); |
| TINT_DEFER({ |
| if (skip_hash.value.has_value()) { |
| for (auto hash : tint::utils::Split(*skip_hash.value, ",")) { |
| uint32_t value = 0; |
| int base = 10; |
| if (hash.size() > 2 && hash[0] == '0' && (hash[1] == 'x' || hash[1] == 'X')) { |
| hash = hash.substr(2); |
| base = 16; |
| } |
| std::from_chars(hash.data(), hash.data() + hash.size(), value, base); |
| opts->skip_hash.emplace(value); |
| } |
| } |
| }); |
| |
| auto& overrides = options.Add<StringOption>( |
| "overrides", "Override values as IDENTIFIER=VALUE, comma-separated"); |
| |
| auto& help = options.Add<BoolOption>("help", "Show usage", ShortName{"h"}); |
| |
| auto show_usage = [&] { |
| std::cout << R"(Usage: tint [options] <input-file> |
| |
| Options: |
| )"; |
| options.ShowHelp(std::cout); |
| }; |
| |
| auto result = options.Parse(std::cerr, arguments); |
| if (!result) { |
| std::cerr << std::endl; |
| show_usage(); |
| return false; |
| } |
| if (help.value.value_or(false)) { |
| show_usage(); |
| return false; |
| } |
| |
| if (overrides.value.has_value()) { |
| for (const auto& o : tint::utils::Split(*overrides.value, ",")) { |
| auto parts = tint::utils::Split(o, "="); |
| if (parts.Length() != 2) { |
| std::cerr << "override values must be of the form IDENTIFIER=VALUE"; |
| return false; |
| } |
| auto value = tint::utils::ParseNumber<double>(parts[1]); |
| if (!value) { |
| std::cerr << "invalid override value: " << parts[1]; |
| return false; |
| } |
| opts->overrides.Add(std::string(parts[0]), value.Get()); |
| } |
| } |
| |
| if (hlsl_rc_bp.value.has_value()) { |
| auto binding_points = tint::utils::Split(*hlsl_rc_bp.value, ","); |
| if (binding_points.Length() != 2) { |
| std::cerr << "Invalid binding point for " << hlsl_rc_bp.name << ": " |
| << *hlsl_rc_bp.value << std::endl; |
| return false; |
| } |
| auto group = tint::utils::ParseUint32(binding_points[0]); |
| if (!group) { |
| std::cerr << "Invalid group for " << hlsl_rc_bp.name << ": " << binding_points[0] |
| << std::endl; |
| return false; |
| } |
| auto binding = tint::utils::ParseUint32(binding_points[1]); |
| if (!binding) { |
| std::cerr << "Invalid binding for " << hlsl_rc_bp.name << ": " << binding_points[1] |
| << std::endl; |
| return false; |
| } |
| opts->hlsl_root_constant_binding_point = |
| tint::sem::BindingPoint{group.Get(), binding.Get()}; |
| } |
| |
| auto files = result.Get(); |
| if (files.Length() > 1) { |
| std::cerr << "More than one input file specified: " |
| << tint::utils::Join(Transform(files, tint::utils::Quote), ", ") << std::endl; |
| return false; |
| } |
| if (files.Length() == 1) { |
| opts->input_filename = files[0]; |
| } |
| |
| return true; |
| } |
| |
| /// Writes the given `buffer` into the file named as `output_file` using the |
| /// given `mode`. If `output_file` is empty or "-", writes to standard |
| /// output. If any error occurs, returns false and outputs error message to |
| /// standard error. The ContainerT type must have data() and size() methods, |
| /// like `std::string` and `std::vector` do. |
| /// @returns true on success |
| template <typename ContainerT> |
| bool WriteFile(const std::string& output_file, const std::string mode, const ContainerT& buffer) { |
| const bool use_stdout = output_file.empty() || output_file == "-"; |
| FILE* file = stdout; |
| |
| if (!use_stdout) { |
| #if defined(_MSC_VER) |
| fopen_s(&file, output_file.c_str(), mode.c_str()); |
| #else |
| file = fopen(output_file.c_str(), mode.c_str()); |
| #endif |
| if (!file) { |
| std::cerr << "Could not open file " << output_file << " for writing" << std::endl; |
| return false; |
| } |
| } |
| |
| size_t written = |
| fwrite(buffer.data(), sizeof(typename ContainerT::value_type), buffer.size(), file); |
| if (buffer.size() != written) { |
| if (use_stdout) { |
| std::cerr << "Could not write all output to standard output" << std::endl; |
| } else { |
| std::cerr << "Could not write to file " << output_file << std::endl; |
| fclose(file); |
| } |
| return false; |
| } |
| if (!use_stdout) { |
| fclose(file); |
| } |
| |
| return true; |
| } |
| |
| #if TINT_BUILD_SPV_WRITER |
| std::string Disassemble(const std::vector<uint32_t>& data) { |
| std::string spv_errors; |
| spv_target_env target_env = SPV_ENV_UNIVERSAL_1_0; |
| |
| auto msg_consumer = [&spv_errors](spv_message_level_t level, const char*, |
| const spv_position_t& position, const char* message) { |
| switch (level) { |
| case SPV_MSG_FATAL: |
| case SPV_MSG_INTERNAL_ERROR: |
| case SPV_MSG_ERROR: |
| spv_errors += |
| "error: line " + std::to_string(position.index) + ": " + message + "\n"; |
| break; |
| case SPV_MSG_WARNING: |
| spv_errors += |
| "warning: line " + std::to_string(position.index) + ": " + message + "\n"; |
| break; |
| case SPV_MSG_INFO: |
| spv_errors += |
| "info: line " + std::to_string(position.index) + ": " + message + "\n"; |
| break; |
| case SPV_MSG_DEBUG: |
| break; |
| } |
| }; |
| |
| spvtools::SpirvTools tools(target_env); |
| tools.SetMessageConsumer(msg_consumer); |
| |
| std::string result; |
| if (!tools.Disassemble( |
| data, &result, |
| SPV_BINARY_TO_TEXT_OPTION_INDENT | SPV_BINARY_TO_TEXT_OPTION_FRIENDLY_NAMES)) { |
| std::cerr << spv_errors << std::endl; |
| } |
| return result; |
| } |
| #endif // TINT_BUILD_SPV_WRITER |
| |
| /// Generate SPIR-V code for a program. |
| /// @param program the program to generate |
| /// @param options the options that Tint was invoked with |
| /// @returns true on success |
| bool GenerateSpirv(const tint::Program* program, const Options& options) { |
| #if TINT_BUILD_SPV_WRITER |
| // TODO(jrprice): Provide a way for the user to set non-default options. |
| tint::writer::spirv::Options gen_options; |
| gen_options.disable_robustness = !options.enable_robustness; |
| gen_options.disable_workgroup_init = options.disable_workgroup_init; |
| gen_options.external_texture_options.bindings_map = |
| tint::cmd::GenerateExternalTextureBindings(program); |
| #if TINT_BUILD_IR |
| gen_options.use_tint_ir = options.use_ir; |
| #endif |
| auto result = tint::writer::spirv::Generate(program, gen_options); |
| if (!result.success) { |
| tint::cmd::PrintWGSL(std::cerr, *program); |
| std::cerr << "Failed to generate: " << result.error << std::endl; |
| return false; |
| } |
| |
| if (options.format == Format::kSpvAsm) { |
| if (!WriteFile(options.output_file, "w", Disassemble(result.spirv))) { |
| return false; |
| } |
| } else { |
| if (!WriteFile(options.output_file, "wb", result.spirv)) { |
| return false; |
| } |
| } |
| |
| const auto hash = tint::utils::CRC32(result.spirv.data(), result.spirv.size()); |
| if (options.print_hash) { |
| PrintHash(hash); |
| } |
| |
| if (options.validate && options.skip_hash.count(hash) == 0) { |
| // Use Vulkan 1.1, since this is what Tint, internally, uses. |
| spvtools::SpirvTools tools(SPV_ENV_VULKAN_1_1); |
| tools.SetMessageConsumer( |
| [](spv_message_level_t, const char*, const spv_position_t& pos, const char* msg) { |
| std::cerr << (pos.line + 1) << ":" << (pos.column + 1) << ": " << msg << std::endl; |
| }); |
| if (!tools.Validate(result.spirv.data(), result.spirv.size(), |
| spvtools::ValidatorOptions())) { |
| return false; |
| } |
| } |
| |
| return true; |
| #else |
| (void)program; |
| (void)options; |
| std::cerr << "SPIR-V writer not enabled in tint build" << std::endl; |
| return false; |
| #endif // TINT_BUILD_SPV_WRITER |
| } |
| |
| /// Generate WGSL code for a program. |
| /// @param program the program to generate |
| /// @param options the options that Tint was invoked with |
| /// @returns true on success |
| bool GenerateWgsl(const tint::Program* program, const Options& options) { |
| #if TINT_BUILD_WGSL_WRITER |
| // TODO(jrprice): Provide a way for the user to set non-default options. |
| tint::writer::wgsl::Options gen_options; |
| auto result = tint::writer::wgsl::Generate(program, gen_options); |
| if (!result.success) { |
| std::cerr << "Failed to generate: " << result.error << std::endl; |
| return false; |
| } |
| |
| if (!WriteFile(options.output_file, "w", result.wgsl)) { |
| return false; |
| } |
| |
| const auto hash = tint::utils::CRC32(result.wgsl.data(), result.wgsl.size()); |
| if (options.print_hash) { |
| PrintHash(hash); |
| } |
| |
| if (options.validate && options.skip_hash.count(hash) == 0) { |
| // Attempt to re-parse the output program with Tint's WGSL reader. |
| auto source = std::make_unique<tint::Source::File>(options.input_filename, result.wgsl); |
| auto reparsed_program = tint::reader::wgsl::Parse(source.get()); |
| if (!reparsed_program.IsValid()) { |
| auto diag_printer = tint::diag::Printer::create(stderr, true); |
| tint::diag::Formatter diag_formatter; |
| diag_formatter.format(reparsed_program.Diagnostics(), diag_printer.get()); |
| return false; |
| } |
| } |
| |
| return true; |
| #else |
| (void)program; |
| (void)options; |
| std::cerr << "WGSL writer not enabled in tint build" << std::endl; |
| return false; |
| #endif // TINT_BUILD_WGSL_WRITER |
| } |
| |
| /// Generate MSL code for a program. |
| /// @param program the program to generate |
| /// @param options the options that Tint was invoked with |
| /// @returns true on success |
| bool GenerateMsl(const tint::Program* program, const Options& options) { |
| #if TINT_BUILD_MSL_WRITER |
| // Remap resource numbers to a flat namespace. |
| // TODO(crbug.com/tint/1501): Do this via Options::BindingMap. |
| const tint::Program* input_program = program; |
| auto flattened = tint::writer::FlattenBindings(program); |
| if (flattened) { |
| input_program = &*flattened; |
| } |
| |
| // TODO(jrprice): Provide a way for the user to set non-default options. |
| tint::writer::msl::Options gen_options; |
| #if TINT_BUILD_IR |
| gen_options.use_tint_ir = options.use_ir; |
| #endif |
| gen_options.disable_robustness = !options.enable_robustness; |
| gen_options.disable_workgroup_init = options.disable_workgroup_init; |
| gen_options.external_texture_options.bindings_map = |
| tint::cmd::GenerateExternalTextureBindings(input_program); |
| gen_options.array_length_from_uniform.ubo_binding = tint::writer::BindingPoint{0, 30}; |
| gen_options.array_length_from_uniform.bindpoint_to_size_index.emplace( |
| tint::writer::BindingPoint{0, 0}, 0); |
| gen_options.array_length_from_uniform.bindpoint_to_size_index.emplace( |
| tint::writer::BindingPoint{0, 1}, 1); |
| auto result = tint::writer::msl::Generate(input_program, gen_options); |
| if (!result.success) { |
| tint::cmd::PrintWGSL(std::cerr, *program); |
| std::cerr << "Failed to generate: " << result.error << std::endl; |
| return false; |
| } |
| |
| if (!WriteFile(options.output_file, "w", result.msl)) { |
| return false; |
| } |
| |
| const auto hash = tint::utils::CRC32(result.msl.c_str()); |
| if (options.print_hash) { |
| PrintHash(hash); |
| } |
| |
| if (options.validate && options.skip_hash.count(hash) == 0) { |
| tint::msl::validate::Result res; |
| #ifdef TINT_ENABLE_MSL_VALIDATION_USING_METAL_API |
| res = tint::msl::validate::UsingMetalAPI(result.msl); |
| #else |
| #ifdef _WIN32 |
| const char* default_xcrun_exe = "metal.exe"; |
| #else |
| const char* default_xcrun_exe = "xcrun"; |
| #endif |
| auto xcrun = tint::utils::Command::LookPath( |
| options.xcrun_path.empty() ? default_xcrun_exe : std::string(options.xcrun_path)); |
| if (xcrun.Found()) { |
| res = tint::msl::validate::Msl(xcrun.Path(), result.msl); |
| } else { |
| res.output = "xcrun executable not found. Cannot validate."; |
| res.failed = true; |
| } |
| #endif // TINT_ENABLE_MSL_VALIDATION_USING_METAL_API |
| if (res.failed) { |
| std::cerr << res.output << std::endl; |
| return false; |
| } |
| } |
| |
| return true; |
| #else |
| (void)program; |
| (void)options; |
| std::cerr << "MSL writer not enabled in tint build" << std::endl; |
| return false; |
| #endif // TINT_BUILD_MSL_WRITER |
| } |
| |
| /// Generate HLSL code for a program. |
| /// @param program the program to generate |
| /// @param options the options that Tint was invoked with |
| /// @returns true on success |
| bool GenerateHlsl(const tint::Program* program, const Options& options) { |
| #if TINT_BUILD_HLSL_WRITER |
| // TODO(jrprice): Provide a way for the user to set non-default options. |
| tint::writer::hlsl::Options gen_options; |
| gen_options.disable_robustness = !options.enable_robustness; |
| gen_options.disable_workgroup_init = options.disable_workgroup_init; |
| gen_options.external_texture_options.bindings_map = |
| tint::cmd::GenerateExternalTextureBindings(program); |
| gen_options.root_constant_binding_point = options.hlsl_root_constant_binding_point; |
| auto result = tint::writer::hlsl::Generate(program, gen_options); |
| if (!result.success) { |
| tint::cmd::PrintWGSL(std::cerr, *program); |
| std::cerr << "Failed to generate: " << result.error << std::endl; |
| return false; |
| } |
| |
| if (!WriteFile(options.output_file, "w", result.hlsl)) { |
| return false; |
| } |
| |
| const auto hash = tint::utils::CRC32(result.hlsl.c_str()); |
| if (options.print_hash) { |
| PrintHash(hash); |
| } |
| |
| // If --fxc or --dxc was passed, then we must explicitly find and validate with that respective |
| // compiler. |
| const bool must_validate_dxc = !options.dxc_path.empty(); |
| const bool must_validate_fxc = !options.fxc_path.empty(); |
| if ((options.validate || must_validate_dxc || must_validate_fxc) && |
| (options.skip_hash.count(hash) == 0)) { |
| tint::hlsl::validate::Result dxc_res; |
| bool dxc_found = false; |
| if (options.validate || must_validate_dxc) { |
| auto dxc = tint::utils::Command::LookPath( |
| options.dxc_path.empty() ? "dxc" : std::string(options.dxc_path)); |
| if (dxc.Found()) { |
| dxc_found = true; |
| |
| auto enable_list = program->AST().Enables(); |
| bool dxc_require_16bit_types = false; |
| for (auto* enable : enable_list) { |
| if (enable->HasExtension(tint::builtin::Extension::kF16)) { |
| dxc_require_16bit_types = true; |
| break; |
| } |
| } |
| |
| dxc_res = tint::hlsl::validate::UsingDXC( |
| dxc.Path(), result.hlsl, result.entry_points, dxc_require_16bit_types); |
| } else if (must_validate_dxc) { |
| // DXC was explicitly requested. Error if it could not be found. |
| dxc_res.failed = true; |
| dxc_res.output = "DXC executable '" + std::string(options.dxc_path) + |
| "' not found. Cannot validate"; |
| } |
| } |
| |
| tint::hlsl::validate::Result fxc_res; |
| bool fxc_found = false; |
| if (options.validate || must_validate_fxc) { |
| auto fxc = tint::utils::Command::LookPath(options.fxc_path.empty() |
| ? tint::hlsl::validate::kFxcDLLName |
| : std::string(options.fxc_path)); |
| |
| #ifdef _WIN32 |
| if (fxc.Found()) { |
| fxc_found = true; |
| fxc_res = |
| tint::hlsl::validate::UsingFXC(fxc.Path(), result.hlsl, result.entry_points); |
| } else if (must_validate_fxc) { |
| // FXC was explicitly requested. Error if it could not be found. |
| fxc_res.failed = true; |
| fxc_res.output = "FXC DLL '" + options.fxc_path + "' not found. Cannot validate"; |
| } |
| #else |
| if (must_validate_dxc) { |
| fxc_res.failed = true; |
| fxc_res.output = "FXC can only be used on Windows."; |
| } |
| #endif // _WIN32 |
| } |
| |
| if (fxc_res.failed) { |
| std::cerr << "FXC validation failure:" << std::endl << fxc_res.output << std::endl; |
| } |
| if (dxc_res.failed) { |
| std::cerr << "DXC validation failure:" << std::endl << dxc_res.output << std::endl; |
| } |
| if (fxc_res.failed || dxc_res.failed) { |
| return false; |
| } |
| if (!fxc_found && !dxc_found) { |
| std::cerr << "Couldn't find FXC or DXC. Cannot validate" << std::endl; |
| return false; |
| } |
| if (options.verbose) { |
| if (fxc_found && !fxc_res.failed) { |
| std::cout << "Passed FXC validation" << std::endl; |
| std::cout << fxc_res.output; |
| std::cout << std::endl; |
| } |
| if (dxc_found && !dxc_res.failed) { |
| std::cout << "Passed DXC validation" << std::endl; |
| std::cout << dxc_res.output; |
| std::cout << std::endl; |
| } |
| } |
| } |
| |
| return true; |
| #else |
| (void)program; |
| (void)options; |
| std::cerr << "HLSL writer not enabled in tint build" << std::endl; |
| return false; |
| #endif // TINT_BUILD_HLSL_WRITER |
| } |
| |
| #if TINT_BUILD_GLSL_WRITER |
| EShLanguage pipeline_stage_to_esh_language(tint::ast::PipelineStage stage) { |
| switch (stage) { |
| case tint::ast::PipelineStage::kFragment: |
| return EShLangFragment; |
| case tint::ast::PipelineStage::kVertex: |
| return EShLangVertex; |
| case tint::ast::PipelineStage::kCompute: |
| return EShLangCompute; |
| default: |
| TINT_ASSERT(AST, false); |
| return EShLangVertex; |
| } |
| } |
| #endif |
| |
| /// Generate GLSL code for a program. |
| /// @param program the program to generate |
| /// @param options the options that Tint was invoked with |
| /// @returns true on success |
| bool GenerateGlsl(const tint::Program* program, const Options& options) { |
| #if TINT_BUILD_GLSL_WRITER |
| if (options.validate) { |
| glslang::InitializeProcess(); |
| } |
| |
| auto generate = [&](const tint::Program* prg, const std::string entry_point_name) -> bool { |
| tint::writer::glsl::Options gen_options; |
| gen_options.disable_robustness = !options.enable_robustness; |
| gen_options.external_texture_options.bindings_map = |
| tint::cmd::GenerateExternalTextureBindings(prg); |
| auto result = tint::writer::glsl::Generate(prg, gen_options, entry_point_name); |
| if (!result.success) { |
| tint::cmd::PrintWGSL(std::cerr, *prg); |
| std::cerr << "Failed to generate: " << result.error << std::endl; |
| return false; |
| } |
| |
| if (!WriteFile(options.output_file, "w", result.glsl)) { |
| return false; |
| } |
| |
| const auto hash = tint::utils::CRC32(result.glsl.c_str()); |
| if (options.print_hash) { |
| PrintHash(hash); |
| } |
| |
| if (options.validate && options.skip_hash.count(hash) == 0) { |
| for (auto entry_pt : result.entry_points) { |
| EShLanguage lang = pipeline_stage_to_esh_language(entry_pt.second); |
| glslang::TShader shader(lang); |
| const char* strings[1] = {result.glsl.c_str()}; |
| int lengths[1] = {static_cast<int>(result.glsl.length())}; |
| shader.setStringsWithLengths(strings, lengths, 1); |
| shader.setEntryPoint("main"); |
| bool glslang_result = shader.parse(GetDefaultResources(), 310, EEsProfile, false, |
| false, EShMsgDefault); |
| if (!glslang_result) { |
| std::cerr << "Error parsing GLSL shader:\n" |
| << shader.getInfoLog() << "\n" |
| << shader.getInfoDebugLog() << "\n"; |
| return false; |
| } |
| } |
| } |
| return true; |
| }; |
| |
| tint::inspector::Inspector inspector(program); |
| |
| if (inspector.GetEntryPoints().empty()) { |
| // Pass empty string here so that the GLSL generator will generate |
| // code for all functions, reachable or not. |
| return generate(program, ""); |
| } |
| |
| bool success = true; |
| for (auto& entry_point : inspector.GetEntryPoints()) { |
| success &= generate(program, entry_point.name); |
| } |
| return success; |
| #else |
| (void)program; |
| (void)options; |
| std::cerr << "GLSL writer not enabled in tint build" << std::endl; |
| return false; |
| #endif // TINT_BUILD_GLSL_WRITER |
| } |
| |
| } // namespace |
| |
| int main(int argc, const char** argv) { |
| tint::utils::Vector<std::string_view, 8> arguments; |
| for (int i = 1; i < argc; i++) { |
| std::string_view arg(argv[i]); |
| if (!arg.empty()) { |
| arguments.Push(argv[i]); |
| } |
| } |
| |
| Options options; |
| |
| tint::SetInternalCompilerErrorReporter(&tint::cmd::TintInternalCompilerErrorReporter); |
| |
| #if TINT_BUILD_WGSL_WRITER |
| tint::Program::printer = [](const tint::Program* program) { |
| auto result = tint::writer::wgsl::Generate(program, {}); |
| if (!result.error.empty()) { |
| return "error: " + result.error; |
| } |
| return result.wgsl; |
| }; |
| #endif // TINT_BUILD_WGSL_WRITER |
| |
| struct TransformFactory { |
| const char* name; |
| /// Build and adds the transform to the transform manager. |
| /// Parameters: |
| /// inspector - an inspector created from the parsed program |
| /// manager - the transform manager. Add transforms to this. |
| /// inputs - the input data to the transform manager. Add inputs to this. |
| /// Returns true on success, false on error (program will immediately exit) |
| std::function<bool(tint::inspector::Inspector& inspector, |
| tint::transform::Manager& manager, |
| tint::transform::DataMap& inputs)> |
| make; |
| }; |
| std::vector<TransformFactory> transforms = { |
| {"first_index_offset", |
| [](tint::inspector::Inspector&, tint::transform::Manager& m, tint::transform::DataMap& i) { |
| i.Add<tint::ast::transform::FirstIndexOffset::BindingPoint>(0, 0); |
| m.Add<tint::ast::transform::FirstIndexOffset>(); |
| return true; |
| }}, |
| {"renamer", |
| [](tint::inspector::Inspector&, tint::transform::Manager& m, tint::transform::DataMap&) { |
| m.Add<tint::ast::transform::Renamer>(); |
| return true; |
| }}, |
| {"robustness", |
| [&](tint::inspector::Inspector&, tint::transform::Manager&, |
| tint::transform::DataMap&) { // enabled via writer option |
| options.enable_robustness = true; |
| return true; |
| }}, |
| {"substitute_override", |
| [&](tint::inspector::Inspector& inspector, tint::transform::Manager& m, |
| tint::transform::DataMap& i) { |
| tint::ast::transform::SubstituteOverride::Config cfg; |
| |
| std::unordered_map<tint::OverrideId, double> values; |
| values.reserve(options.overrides.Count()); |
| |
| for (auto override : options.overrides) { |
| const auto& name = override.key; |
| const auto& value = override.value; |
| if (name.empty()) { |
| std::cerr << "empty override name" << std::endl; |
| return false; |
| } |
| if (auto num = tint::utils::ParseNumber<decltype(tint::OverrideId::value)>(name)) { |
| tint::OverrideId id{num.Get()}; |
| values.emplace(id, value); |
| } else { |
| auto override_names = inspector.GetNamedOverrideIds(); |
| auto it = override_names.find(name); |
| if (it == override_names.end()) { |
| std::cerr << "unknown override '" << name << "'" << std::endl; |
| return false; |
| } |
| values.emplace(it->second, value); |
| } |
| } |
| |
| cfg.map = std::move(values); |
| |
| i.Add<tint::ast::transform::SubstituteOverride::Config>(cfg); |
| m.Add<tint::ast::transform::SubstituteOverride>(); |
| return true; |
| }}, |
| }; |
| auto transform_names = [&] { |
| tint::utils::StringStream names; |
| for (auto& t : transforms) { |
| names << " " << t.name << std::endl; |
| } |
| return names.str(); |
| }; |
| |
| if (!ParseArgs(arguments, transform_names(), &options)) { |
| return 1; |
| } |
| |
| // Implement output format defaults. |
| if (options.format == Format::kUnknown) { |
| // Try inferring from filename. |
| options.format = infer_format(options.output_file); |
| } |
| if (options.format == Format::kUnknown) { |
| // Ultimately, default to SPIR-V assembly. That's nice for interactive use. |
| options.format = Format::kSpvAsm; |
| } |
| |
| auto diag_printer = tint::diag::Printer::create(stderr, true); |
| tint::diag::Formatter diag_formatter; |
| |
| std::unique_ptr<tint::Program> program; |
| std::unique_ptr<tint::Source::File> source_file; |
| |
| { |
| tint::cmd::LoadProgramOptions opts; |
| opts.filename = options.input_filename; |
| #if TINT_BUILD_SPV_READER |
| opts.spirv_reader_options = options.spirv_reader_options; |
| #endif |
| |
| auto info = tint::cmd::LoadProgramInfo(opts); |
| program = std::move(info.program); |
| source_file = std::move(info.source_file); |
| } |
| |
| if (options.parse_only) { |
| return 1; |
| } |
| |
| #if TINT_BUILD_SYNTAX_TREE_WRITER |
| if (options.dump_ast) { |
| tint::writer::syntax_tree::Options gen_options; |
| auto result = tint::writer::syntax_tree::Generate(program.get(), gen_options); |
| if (!result.success) { |
| std::cerr << "Failed to dump AST: " << result.error << std::endl; |
| } else { |
| std::cout << result.ast << std::endl; |
| } |
| } |
| #endif // TINT_BUILD_SYNTAX_TREE_WRITER |
| |
| #if TINT_BUILD_IR |
| if (options.dump_ir) { |
| auto result = tint::ir::FromProgram(program.get()); |
| if (!result) { |
| std::cerr << "Failed to build IR from program: " << result.Failure() << std::endl; |
| } else { |
| auto mod = result.Move(); |
| if (options.dump_ir) { |
| tint::ir::Disassembler d(mod); |
| std::cout << d.Disassemble() << std::endl; |
| } |
| } |
| } |
| #endif // TINT_BUILD_IR |
| |
| tint::inspector::Inspector inspector(program.get()); |
| if (options.dump_inspector_bindings) { |
| tint::cmd::PrintInspectorBindings(inspector); |
| } |
| |
| tint::transform::Manager transform_manager; |
| tint::transform::DataMap transform_inputs; |
| |
| // Renaming must always come first |
| switch (options.format) { |
| case Format::kMsl: { |
| #if TINT_BUILD_MSL_WRITER |
| transform_inputs.Add<tint::ast::transform::Renamer::Config>( |
| options.rename_all ? tint::ast::transform::Renamer::Target::kAll |
| : tint::ast::transform::Renamer::Target::kMslKeywords, |
| /* preserve_unicode */ false); |
| transform_manager.Add<tint::ast::transform::Renamer>(); |
| #endif // TINT_BUILD_MSL_WRITER |
| break; |
| } |
| #if TINT_BUILD_GLSL_WRITER |
| case Format::kGlsl: { |
| transform_inputs.Add<tint::ast::transform::Renamer::Config>( |
| options.rename_all ? tint::ast::transform::Renamer::Target::kAll |
| : tint::ast::transform::Renamer::Target::kGlslKeywords, |
| /* preserve_unicode */ false); |
| transform_manager.Add<tint::ast::transform::Renamer>(); |
| break; |
| } |
| #endif // TINT_BUILD_GLSL_WRITER |
| case Format::kHlsl: { |
| #if TINT_BUILD_HLSL_WRITER |
| transform_inputs.Add<tint::ast::transform::Renamer::Config>( |
| options.rename_all ? tint::ast::transform::Renamer::Target::kAll |
| : tint::ast::transform::Renamer::Target::kHlslKeywords, |
| /* preserve_unicode */ false); |
| transform_manager.Add<tint::ast::transform::Renamer>(); |
| #endif // TINT_BUILD_HLSL_WRITER |
| break; |
| } |
| default: { |
| if (options.rename_all) { |
| transform_manager.Add<tint::ast::transform::Renamer>(); |
| } |
| break; |
| } |
| } |
| |
| auto enable_transform = [&](std::string_view name) { |
| for (auto& t : transforms) { |
| if (t.name == name) { |
| return t.make(inspector, transform_manager, transform_inputs); |
| } |
| } |
| |
| std::cerr << "Unknown transform: " << name << std::endl; |
| std::cerr << "Available transforms: " << std::endl << transform_names() << std::endl; |
| return false; |
| }; |
| |
| // If overrides are provided, add the SubstituteOverride transform. |
| if (!options.overrides.IsEmpty()) { |
| if (!enable_transform("substitute_override")) { |
| return 1; |
| } |
| } |
| |
| for (const auto& name : options.transforms) { |
| // TODO(dsinclair): The vertex pulling transform requires setup code to |
| // be run that needs user input. Should we find a way to support that here |
| // maybe through a provided file? |
| if (!enable_transform(name)) { |
| return 1; |
| } |
| } |
| |
| if (options.emit_single_entry_point) { |
| transform_manager.append(std::make_unique<tint::ast::transform::SingleEntryPoint>()); |
| transform_inputs.Add<tint::ast::transform::SingleEntryPoint::Config>(options.ep_name); |
| } |
| |
| tint::transform::DataMap outputs; |
| auto out = transform_manager.Run(program.get(), std::move(transform_inputs), outputs); |
| if (!out.IsValid()) { |
| tint::cmd::PrintWGSL(std::cerr, out); |
| diag_formatter.format(out.Diagnostics(), diag_printer.get()); |
| return 1; |
| } |
| |
| *program = std::move(out); |
| |
| bool success = false; |
| switch (options.format) { |
| case Format::kSpirv: |
| case Format::kSpvAsm: |
| success = GenerateSpirv(program.get(), options); |
| break; |
| case Format::kWgsl: |
| success = GenerateWgsl(program.get(), options); |
| break; |
| case Format::kMsl: |
| success = GenerateMsl(program.get(), options); |
| break; |
| case Format::kHlsl: |
| success = GenerateHlsl(program.get(), options); |
| break; |
| case Format::kGlsl: |
| success = GenerateGlsl(program.get(), options); |
| break; |
| case Format::kNone: |
| break; |
| default: |
| std::cerr << "Unknown output format specified" << std::endl; |
| return 1; |
| } |
| if (!success) { |
| return 1; |
| } |
| |
| return 0; |
| } |