1495 lines
56 KiB
C++
1495 lines
56 KiB
C++
/*
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* Copyright 2015-2020 Arm Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "spirv_cpp.hpp"
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#include "spirv_cross_util.hpp"
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#include "spirv_glsl.hpp"
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#include "spirv_hlsl.hpp"
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#include "spirv_msl.hpp"
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#include "spirv_parser.hpp"
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#include "spirv_reflect.hpp"
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#include <algorithm>
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#include <cstdio>
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#include <cstring>
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#include <functional>
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#include <limits>
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#include <memory>
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#include <stdexcept>
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#include <unordered_map>
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#include <unordered_set>
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#ifdef HAVE_SPIRV_CROSS_GIT_VERSION
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#include "gitversion.h"
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#endif
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using namespace spv;
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using namespace SPIRV_CROSS_NAMESPACE;
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using namespace std;
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#ifdef SPIRV_CROSS_EXCEPTIONS_TO_ASSERTIONS
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static inline void THROW(const char *str)
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{
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fprintf(stderr, "SPIRV-Cross will abort: %s\n", str);
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fflush(stderr);
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abort();
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}
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#else
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#define THROW(x) throw runtime_error(x)
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#endif
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struct CLIParser;
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struct CLICallbacks
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{
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void add(const char *cli, const function<void(CLIParser &)> &func)
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{
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callbacks[cli] = func;
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}
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unordered_map<string, function<void(CLIParser &)>> callbacks;
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function<void()> error_handler;
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function<void(const char *)> default_handler;
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};
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struct CLIParser
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{
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CLIParser(CLICallbacks cbs_, int argc_, char *argv_[])
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: cbs(move(cbs_))
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, argc(argc_)
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, argv(argv_)
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{
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}
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bool parse()
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{
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#ifndef SPIRV_CROSS_EXCEPTIONS_TO_ASSERTIONS
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try
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#endif
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{
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while (argc && !ended_state)
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{
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const char *next = *argv++;
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argc--;
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if (*next != '-' && cbs.default_handler)
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{
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cbs.default_handler(next);
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}
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else
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{
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auto itr = cbs.callbacks.find(next);
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if (itr == ::end(cbs.callbacks))
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{
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THROW("Invalid argument");
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}
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itr->second(*this);
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}
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}
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return true;
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}
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#ifndef SPIRV_CROSS_EXCEPTIONS_TO_ASSERTIONS
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catch (...)
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{
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if (cbs.error_handler)
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{
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cbs.error_handler();
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}
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return false;
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}
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#endif
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}
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void end()
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{
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ended_state = true;
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}
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uint32_t next_uint()
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{
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if (!argc)
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{
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THROW("Tried to parse uint, but nothing left in arguments");
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}
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uint64_t val = stoul(*argv);
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if (val > numeric_limits<uint32_t>::max())
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{
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THROW("next_uint() out of range");
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}
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argc--;
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argv++;
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return uint32_t(val);
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}
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uint32_t next_hex_uint()
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{
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if (!argc)
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{
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THROW("Tried to parse uint, but nothing left in arguments");
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}
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uint64_t val = stoul(*argv, nullptr, 16);
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if (val > numeric_limits<uint32_t>::max())
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{
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THROW("next_uint() out of range");
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}
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argc--;
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argv++;
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return uint32_t(val);
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}
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double next_double()
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{
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if (!argc)
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{
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THROW("Tried to parse double, but nothing left in arguments");
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}
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double val = stod(*argv);
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argc--;
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argv++;
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return val;
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}
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// Return a string only if it's not prefixed with `--`, otherwise return the default value
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const char *next_value_string(const char *default_value)
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{
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if (!argc)
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{
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return default_value;
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}
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if (0 == strncmp("--", *argv, 2))
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{
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return default_value;
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}
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return next_string();
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}
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const char *next_string()
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{
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if (!argc)
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{
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THROW("Tried to parse string, but nothing left in arguments");
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}
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const char *ret = *argv;
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argc--;
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argv++;
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return ret;
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}
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CLICallbacks cbs;
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int argc;
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char **argv;
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bool ended_state = false;
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};
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#if defined(__clang__) || defined(__GNUC__)
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
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#elif defined(_MSC_VER)
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#pragma warning(push)
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#pragma warning(disable : 4996)
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#endif
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static vector<uint32_t> read_spirv_file(const char *path)
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{
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FILE *file = fopen(path, "rb");
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if (!file)
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{
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fprintf(stderr, "Failed to open SPIR-V file: %s\n", path);
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return {};
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}
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fseek(file, 0, SEEK_END);
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long len = ftell(file) / sizeof(uint32_t);
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rewind(file);
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vector<uint32_t> spirv(len);
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if (fread(spirv.data(), sizeof(uint32_t), len, file) != size_t(len))
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spirv.clear();
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fclose(file);
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return spirv;
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}
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static bool write_string_to_file(const char *path, const char *string)
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{
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FILE *file = fopen(path, "w");
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if (!file)
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{
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fprintf(stderr, "Failed to write file: %s\n", path);
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return false;
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}
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fprintf(file, "%s", string);
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fclose(file);
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return true;
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}
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#if defined(__clang__) || defined(__GNUC__)
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#pragma GCC diagnostic pop
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#elif defined(_MSC_VER)
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#pragma warning(pop)
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#endif
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static void print_resources(const Compiler &compiler, const char *tag, const SmallVector<Resource> &resources)
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{
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fprintf(stderr, "%s\n", tag);
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fprintf(stderr, "=============\n\n");
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bool print_ssbo = !strcmp(tag, "ssbos");
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for (auto &res : resources)
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{
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auto &type = compiler.get_type(res.type_id);
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if (print_ssbo && compiler.buffer_is_hlsl_counter_buffer(res.id))
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continue;
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// If we don't have a name, use the fallback for the type instead of the variable
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// for SSBOs and UBOs since those are the only meaningful names to use externally.
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// Push constant blocks are still accessed by name and not block name, even though they are technically Blocks.
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bool is_push_constant = compiler.get_storage_class(res.id) == StorageClassPushConstant;
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bool is_block = compiler.get_decoration_bitset(type.self).get(DecorationBlock) ||
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compiler.get_decoration_bitset(type.self).get(DecorationBufferBlock);
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bool is_sized_block = is_block && (compiler.get_storage_class(res.id) == StorageClassUniform ||
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compiler.get_storage_class(res.id) == StorageClassUniformConstant);
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ID fallback_id = !is_push_constant && is_block ? ID(res.base_type_id) : ID(res.id);
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uint32_t block_size = 0;
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uint32_t runtime_array_stride = 0;
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if (is_sized_block)
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{
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auto &base_type = compiler.get_type(res.base_type_id);
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block_size = uint32_t(compiler.get_declared_struct_size(base_type));
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runtime_array_stride = uint32_t(compiler.get_declared_struct_size_runtime_array(base_type, 1) -
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compiler.get_declared_struct_size_runtime_array(base_type, 0));
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}
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Bitset mask;
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if (print_ssbo)
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mask = compiler.get_buffer_block_flags(res.id);
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else
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mask = compiler.get_decoration_bitset(res.id);
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string array;
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for (auto arr : type.array)
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array = join("[", arr ? convert_to_string(arr) : "", "]") + array;
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fprintf(stderr, " ID %03u : %s%s", uint32_t(res.id),
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!res.name.empty() ? res.name.c_str() : compiler.get_fallback_name(fallback_id).c_str(), array.c_str());
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if (mask.get(DecorationLocation))
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fprintf(stderr, " (Location : %u)", compiler.get_decoration(res.id, DecorationLocation));
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if (mask.get(DecorationDescriptorSet))
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fprintf(stderr, " (Set : %u)", compiler.get_decoration(res.id, DecorationDescriptorSet));
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if (mask.get(DecorationBinding))
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fprintf(stderr, " (Binding : %u)", compiler.get_decoration(res.id, DecorationBinding));
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if (static_cast<const CompilerGLSL &>(compiler).variable_is_depth_or_compare(res.id))
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fprintf(stderr, " (comparison)");
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if (mask.get(DecorationInputAttachmentIndex))
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fprintf(stderr, " (Attachment : %u)", compiler.get_decoration(res.id, DecorationInputAttachmentIndex));
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if (mask.get(DecorationNonReadable))
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fprintf(stderr, " writeonly");
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if (mask.get(DecorationNonWritable))
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fprintf(stderr, " readonly");
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if (is_sized_block)
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{
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fprintf(stderr, " (BlockSize : %u bytes)", block_size);
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if (runtime_array_stride)
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fprintf(stderr, " (Unsized array stride: %u bytes)", runtime_array_stride);
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}
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uint32_t counter_id = 0;
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if (print_ssbo && compiler.buffer_get_hlsl_counter_buffer(res.id, counter_id))
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fprintf(stderr, " (HLSL counter buffer ID: %u)", counter_id);
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fprintf(stderr, "\n");
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}
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fprintf(stderr, "=============\n\n");
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}
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static const char *execution_model_to_str(spv::ExecutionModel model)
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{
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switch (model)
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{
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case spv::ExecutionModelVertex:
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return "vertex";
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case spv::ExecutionModelTessellationControl:
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return "tessellation control";
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case ExecutionModelTessellationEvaluation:
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return "tessellation evaluation";
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case ExecutionModelGeometry:
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return "geometry";
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case ExecutionModelFragment:
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return "fragment";
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case ExecutionModelGLCompute:
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return "compute";
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case ExecutionModelRayGenerationNV:
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return "raygenNV";
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case ExecutionModelIntersectionNV:
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return "intersectionNV";
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case ExecutionModelCallableNV:
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return "callableNV";
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case ExecutionModelAnyHitNV:
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return "anyhitNV";
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case ExecutionModelClosestHitNV:
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return "closesthitNV";
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case ExecutionModelMissNV:
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return "missNV";
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default:
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return "???";
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}
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}
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static void print_resources(const Compiler &compiler, const ShaderResources &res)
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{
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auto &modes = compiler.get_execution_mode_bitset();
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fprintf(stderr, "Entry points:\n");
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auto entry_points = compiler.get_entry_points_and_stages();
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for (auto &e : entry_points)
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fprintf(stderr, " %s (%s)\n", e.name.c_str(), execution_model_to_str(e.execution_model));
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fprintf(stderr, "\n");
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fprintf(stderr, "Execution modes:\n");
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modes.for_each_bit([&](uint32_t i) {
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auto mode = static_cast<ExecutionMode>(i);
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uint32_t arg0 = compiler.get_execution_mode_argument(mode, 0);
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uint32_t arg1 = compiler.get_execution_mode_argument(mode, 1);
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uint32_t arg2 = compiler.get_execution_mode_argument(mode, 2);
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switch (static_cast<ExecutionMode>(i))
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{
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case ExecutionModeInvocations:
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fprintf(stderr, " Invocations: %u\n", arg0);
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break;
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case ExecutionModeLocalSize:
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fprintf(stderr, " LocalSize: (%u, %u, %u)\n", arg0, arg1, arg2);
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break;
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case ExecutionModeOutputVertices:
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fprintf(stderr, " OutputVertices: %u\n", arg0);
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break;
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#define CHECK_MODE(m) \
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case ExecutionMode##m: \
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fprintf(stderr, " %s\n", #m); \
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break
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CHECK_MODE(SpacingEqual);
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CHECK_MODE(SpacingFractionalEven);
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CHECK_MODE(SpacingFractionalOdd);
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CHECK_MODE(VertexOrderCw);
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CHECK_MODE(VertexOrderCcw);
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CHECK_MODE(PixelCenterInteger);
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CHECK_MODE(OriginUpperLeft);
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CHECK_MODE(OriginLowerLeft);
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CHECK_MODE(EarlyFragmentTests);
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CHECK_MODE(PointMode);
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CHECK_MODE(Xfb);
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CHECK_MODE(DepthReplacing);
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CHECK_MODE(DepthGreater);
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CHECK_MODE(DepthLess);
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CHECK_MODE(DepthUnchanged);
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CHECK_MODE(LocalSizeHint);
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CHECK_MODE(InputPoints);
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CHECK_MODE(InputLines);
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CHECK_MODE(InputLinesAdjacency);
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CHECK_MODE(Triangles);
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CHECK_MODE(InputTrianglesAdjacency);
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CHECK_MODE(Quads);
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CHECK_MODE(Isolines);
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CHECK_MODE(OutputPoints);
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CHECK_MODE(OutputLineStrip);
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CHECK_MODE(OutputTriangleStrip);
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CHECK_MODE(VecTypeHint);
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CHECK_MODE(ContractionOff);
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default:
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break;
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}
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});
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fprintf(stderr, "\n");
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print_resources(compiler, "subpass inputs", res.subpass_inputs);
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print_resources(compiler, "inputs", res.stage_inputs);
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print_resources(compiler, "outputs", res.stage_outputs);
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print_resources(compiler, "textures", res.sampled_images);
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print_resources(compiler, "separate images", res.separate_images);
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print_resources(compiler, "separate samplers", res.separate_samplers);
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print_resources(compiler, "images", res.storage_images);
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print_resources(compiler, "ssbos", res.storage_buffers);
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print_resources(compiler, "ubos", res.uniform_buffers);
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print_resources(compiler, "push", res.push_constant_buffers);
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print_resources(compiler, "counters", res.atomic_counters);
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print_resources(compiler, "acceleration structures", res.acceleration_structures);
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}
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static void print_push_constant_resources(const Compiler &compiler, const SmallVector<Resource> &res)
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{
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for (auto &block : res)
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{
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auto ranges = compiler.get_active_buffer_ranges(block.id);
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fprintf(stderr, "Active members in buffer: %s\n",
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!block.name.empty() ? block.name.c_str() : compiler.get_fallback_name(block.id).c_str());
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fprintf(stderr, "==================\n\n");
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for (auto &range : ranges)
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{
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const auto &name = compiler.get_member_name(block.base_type_id, range.index);
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fprintf(stderr, "Member #%3u (%s): Offset: %4u, Range: %4u\n", range.index,
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!name.empty() ? name.c_str() : compiler.get_fallback_member_name(range.index).c_str(),
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unsigned(range.offset), unsigned(range.range));
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}
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fprintf(stderr, "==================\n\n");
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}
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}
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static void print_spec_constants(const Compiler &compiler)
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{
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auto spec_constants = compiler.get_specialization_constants();
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fprintf(stderr, "Specialization constants\n");
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fprintf(stderr, "==================\n\n");
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for (auto &c : spec_constants)
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fprintf(stderr, "ID: %u, Spec ID: %u\n", uint32_t(c.id), c.constant_id);
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fprintf(stderr, "==================\n\n");
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}
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static void print_capabilities_and_extensions(const Compiler &compiler)
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{
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fprintf(stderr, "Capabilities\n");
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fprintf(stderr, "============\n");
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for (auto &capability : compiler.get_declared_capabilities())
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fprintf(stderr, "Capability: %u\n", static_cast<unsigned>(capability));
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fprintf(stderr, "============\n\n");
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fprintf(stderr, "Extensions\n");
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fprintf(stderr, "============\n");
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for (auto &ext : compiler.get_declared_extensions())
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fprintf(stderr, "Extension: %s\n", ext.c_str());
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fprintf(stderr, "============\n\n");
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}
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struct PLSArg
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{
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PlsFormat format;
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string name;
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};
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struct Remap
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{
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string src_name;
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string dst_name;
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unsigned components;
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};
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struct VariableTypeRemap
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{
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string variable_name;
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string new_variable_type;
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};
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struct InterfaceVariableRename
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{
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StorageClass storageClass;
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uint32_t location;
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string variable_name;
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};
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|
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struct CLIArguments
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{
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const char *input = nullptr;
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const char *output = nullptr;
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const char *cpp_interface_name = nullptr;
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uint32_t version = 0;
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uint32_t shader_model = 0;
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uint32_t msl_version = 0;
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bool es = false;
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bool set_version = false;
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bool set_shader_model = false;
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bool set_msl_version = false;
|
|
bool set_es = false;
|
|
bool dump_resources = false;
|
|
bool force_temporary = false;
|
|
bool flatten_ubo = false;
|
|
bool fixup = false;
|
|
bool yflip = false;
|
|
bool sso = false;
|
|
bool support_nonzero_baseinstance = true;
|
|
bool msl_capture_output_to_buffer = false;
|
|
bool msl_swizzle_texture_samples = false;
|
|
bool msl_ios = false;
|
|
bool msl_pad_fragment_output = false;
|
|
bool msl_domain_lower_left = false;
|
|
bool msl_argument_buffers = false;
|
|
bool msl_texture_buffer_native = false;
|
|
bool msl_framebuffer_fetch = false;
|
|
bool msl_invariant_float_math = false;
|
|
bool msl_emulate_cube_array = false;
|
|
bool msl_multiview = false;
|
|
bool msl_view_index_from_device_index = false;
|
|
bool msl_dispatch_base = false;
|
|
bool msl_decoration_binding = false;
|
|
bool msl_force_active_argument_buffer_resources = false;
|
|
bool msl_force_native_arrays = false;
|
|
bool msl_enable_frag_depth_builtin = true;
|
|
bool msl_enable_frag_stencil_ref_builtin = true;
|
|
uint32_t msl_enable_frag_output_mask = 0xffffffff;
|
|
bool msl_enable_clip_distance_user_varying = true;
|
|
bool glsl_emit_push_constant_as_ubo = false;
|
|
bool glsl_emit_ubo_as_plain_uniforms = false;
|
|
SmallVector<pair<uint32_t, uint32_t>> glsl_ext_framebuffer_fetch;
|
|
bool vulkan_glsl_disable_ext_samplerless_texture_functions = false;
|
|
bool emit_line_directives = false;
|
|
bool enable_storage_image_qualifier_deduction = true;
|
|
bool force_zero_initialized_variables = false;
|
|
SmallVector<uint32_t> msl_discrete_descriptor_sets;
|
|
SmallVector<uint32_t> msl_device_argument_buffers;
|
|
SmallVector<pair<uint32_t, uint32_t>> msl_dynamic_buffers;
|
|
SmallVector<pair<uint32_t, uint32_t>> msl_inline_uniform_blocks;
|
|
SmallVector<PLSArg> pls_in;
|
|
SmallVector<PLSArg> pls_out;
|
|
SmallVector<Remap> remaps;
|
|
SmallVector<string> extensions;
|
|
SmallVector<VariableTypeRemap> variable_type_remaps;
|
|
SmallVector<InterfaceVariableRename> interface_variable_renames;
|
|
SmallVector<HLSLVertexAttributeRemap> hlsl_attr_remap;
|
|
string entry;
|
|
string entry_stage;
|
|
|
|
struct Rename
|
|
{
|
|
string old_name;
|
|
string new_name;
|
|
ExecutionModel execution_model;
|
|
};
|
|
SmallVector<Rename> entry_point_rename;
|
|
|
|
uint32_t iterations = 1;
|
|
bool cpp = false;
|
|
string reflect;
|
|
bool msl = false;
|
|
bool hlsl = false;
|
|
bool hlsl_compat = false;
|
|
bool hlsl_support_nonzero_base = false;
|
|
bool hlsl_force_storage_buffer_as_uav = false;
|
|
bool hlsl_nonwritable_uav_texture_as_srv = false;
|
|
HLSLBindingFlags hlsl_binding_flags = 0;
|
|
bool vulkan_semantics = false;
|
|
bool flatten_multidimensional_arrays = false;
|
|
bool use_420pack_extension = true;
|
|
bool remove_unused = false;
|
|
bool combined_samplers_inherit_bindings = false;
|
|
};
|
|
|
|
static void print_version()
|
|
{
|
|
#ifdef HAVE_SPIRV_CROSS_GIT_VERSION
|
|
fprintf(stderr, "%s\n", SPIRV_CROSS_GIT_REVISION);
|
|
#else
|
|
fprintf(stderr, "Git revision unknown. Build with CMake to create timestamp and revision info.\n");
|
|
#endif
|
|
}
|
|
|
|
static void print_help_backend()
|
|
{
|
|
fprintf(stderr, "\nSelect backend:\n"
|
|
"\tBy default, OpenGL-style GLSL is the target, with #version and GLSL/ESSL information inherited from the SPIR-V module if present.\n"
|
|
"\t[--vulkan-semantics] or [-V]:\n\t\tEmit Vulkan GLSL instead of plain GLSL. Makes use of Vulkan-only features to match SPIR-V.\n"
|
|
"\t[--msl]:\n\t\tEmit Metal Shading Language (MSL).\n"
|
|
"\t[--hlsl]:\n\t\tEmit HLSL.\n"
|
|
"\t[--reflect]:\n\t\tEmit JSON reflection.\n"
|
|
"\t[--cpp]:\n\t\tDEPRECATED. Emits C++ code.\n"
|
|
);
|
|
}
|
|
|
|
static void print_help_glsl()
|
|
{
|
|
fprintf(stderr, "\nGLSL options:\n"
|
|
"\t[--es]:\n\t\tForce ESSL.\n"
|
|
"\t[--no-es]:\n\t\tForce desktop GLSL.\n"
|
|
"\t[--version <GLSL version>]:\n\t\tE.g. --version 450 will emit '#version 450' in shader.\n"
|
|
"\t\tCode generation will depend on the version used.\n"
|
|
"\t[--flatten-ubo]:\n\t\tEmit UBOs as plain uniform arrays which are suitable for use with glUniform4*v().\n"
|
|
"\t\tThis can be an optimization on GL implementations where this is faster or works around buggy driver implementations.\n"
|
|
"\t\tE.g.: uniform MyUBO { vec4 a; float b, c, d, e; }; will be emitted as uniform vec4 MyUBO[2];\n"
|
|
"\t\tCaveat: You cannot mix and match floating-point and integer in the same UBO with this option.\n"
|
|
"\t\tLegacy GLSL/ESSL (where this flattening makes sense) does not support bit-casting, which would have been the obvious workaround.\n"
|
|
"\t[--extension ext]:\n\t\tAdd #extension string of your choosing to GLSL output.\n"
|
|
"\t\tUseful if you use variable name remapping to something that requires an extension unknown to SPIRV-Cross.\n"
|
|
"\t[--remove-unused-variables]:\n\t\tDo not emit interface variables which are not statically accessed by the shader.\n"
|
|
"\t[--separate-shader-objects]:\n\t\tRedeclare gl_PerVertex blocks to be suitable for desktop GL separate shader objects.\n"
|
|
"\t[--glsl-emit-push-constant-as-ubo]:\n\t\tInstead of a plain uniform of struct for push constants, emit a UBO block instead.\n"
|
|
"\t[--glsl-emit-ubo-as-plain-uniforms]:\n\t\tInstead of emitting UBOs, emit them as plain uniform structs.\n"
|
|
"\t[--glsl-remap-ext-framebuffer-fetch input-attachment color-location]:\n\t\tRemaps an input attachment to use GL_EXT_shader_framebuffer_fetch.\n"
|
|
"\t\tgl_LastFragData[location] is read from. The attachment to read from must be declared as an output in the shader.\n"
|
|
"\t[--vulkan-glsl-disable-ext-samplerless-texture-functions]:\n\t\tDo not allow use of GL_EXT_samperless_texture_functions, even in Vulkan GLSL.\n"
|
|
"\t\tUse of texelFetch and similar might have to create dummy samplers to work around it.\n"
|
|
"\t[--combined-samplers-inherit-bindings]:\n\t\tInherit binding information from the textures when building combined image samplers from separate textures and samplers.\n"
|
|
"\t[--no-support-nonzero-baseinstance]:\n\t\tWhen using gl_InstanceIndex with desktop GL,\n"
|
|
"\t\tassume that base instance is always 0, and do not attempt to fix up gl_InstanceID to match Vulkan semantics.\n"
|
|
"\t[--pls-in format input-name]:\n\t\tRemaps a subpass input with name into a GL_EXT_pixel_local_storage input.\n"
|
|
"\t\tEntry in PLS block is ordered where first --pls-in marks the first entry. Can be called multiple times.\n"
|
|
"\t\tFormats allowed: r11f_g11f_b10f, r32f, rg16f, rg16, rgb10_a2, rgba8, rgba8i, rgba8ui, rg16i, rgb10_a2ui, rg16ui, r32ui.\n"
|
|
"\t\tRequires ESSL.\n"
|
|
"\t[--pls-out format output-name]:\n\t\tRemaps a color output with name into a GL_EXT_pixel_local_storage output.\n"
|
|
"\t\tEntry in PLS block is ordered where first --pls-output marks the first entry. Can be called multiple times.\n"
|
|
"\t\tFormats allowed: r11f_g11f_b10f, r32f, rg16f, rg16, rgb10_a2, rgba8, rgba8i, rgba8ui, rg16i, rgb10_a2ui, rg16ui, r32ui.\n"
|
|
"\t\tRequires ESSL.\n"
|
|
"\t[--remap source_name target_name components]:\n\t\tRemaps a variable to a different name with N components.\n"
|
|
"\t\tMain use case is to remap a subpass input to gl_LastFragDepthARM.\n"
|
|
"\t\tE.g.:\n"
|
|
"\t\tuniform subpassInput uDepth;\n"
|
|
"\t\t--remap uDepth gl_LastFragDepthARM 1 --extension GL_ARM_shader_framebuffer_fetch_depth_stencil\n"
|
|
"\t[--no-420pack-extension]:\n\t\tDo not make use of GL_ARB_shading_language_420pack in older GL targets to support layout(binding).\n"
|
|
"\t[--remap-variable-type <variable_name> <new_variable_type>]:\n\t\tRemaps a variable type based on name.\n"
|
|
"\t\tPrimary use case is supporting external samplers in ESSL for video rendering on Android where you could remap a texture to a YUV one.\n"
|
|
);
|
|
}
|
|
|
|
static void print_help_hlsl()
|
|
{
|
|
fprintf(stderr, "\nHLSL options:\n"
|
|
"\t[--shader-model]:\n\t\tEnables a specific shader model, e.g. --shader-model 50 for SM 5.0.\n"
|
|
"\t[--hlsl-enable-compat]:\n\t\tAllow point size and point coord to be used, even if they won't work as expected.\n"
|
|
"\t\tPointSize is ignored, and PointCoord returns (0.5, 0.5).\n"
|
|
"\t[--hlsl-support-nonzero-basevertex-baseinstance]:\n\t\tSupport base vertex and base instance by emitting a special cbuffer declared as:\n"
|
|
"\t\tcbuffer SPIRV_Cross_VertexInfo { int SPIRV_Cross_BaseVertex; int SPIRV_Cross_BaseInstance; };\n"
|
|
"\t[--hlsl-auto-binding (push, cbv, srv, uav, sampler, all)]\n"
|
|
"\t\tDo not emit any : register(#) bindings for specific resource types, and rely on HLSL compiler to assign something.\n"
|
|
"\t[--hlsl-force-storage-buffer-as-uav]:\n\t\tAlways emit SSBOs as UAVs, even when marked as read-only.\n"
|
|
"\t\tNormally, SSBOs marked with NonWritable will be emitted as SRVs.\n"
|
|
"\t[--hlsl-nonwritable-uav-texture-as-srv]:\n\t\tEmit NonWritable storage images as SRV textures instead of UAV.\n"
|
|
"\t\tUsing this option messes with the type system. SPIRV-Cross cannot guarantee that this will work.\n"
|
|
"\t\tOne major problem area with this feature is function arguments, where we won't know if we're seeing a UAV or SRV.\n"
|
|
"\t\tShader must ensure that read/write state is consistent at all call sites.\n"
|
|
"\t[--set-hlsl-vertex-input-semantic <location> <semantic>]:\n\t\tEmits a specific vertex input semantic for a given location.\n"
|
|
"\t\tOtherwise, TEXCOORD# is used as semantics, where # is location.\n"
|
|
);
|
|
}
|
|
|
|
static void print_help_msl()
|
|
{
|
|
fprintf(stderr, "\nMSL options:\n"
|
|
"\t[--msl-version <MMmmpp>]:\n\t\tUses a specific MSL version, e.g. --msl-version 20100 for MSL 2.1.\n"
|
|
"\t[--msl-capture-output]:\n\t\tWrites geometry varyings to a buffer instead of as stage-outputs.\n"
|
|
"\t[--msl-swizzle-texture-samples]:\n\t\tWorks around lack of support for VkImageView component swizzles.\n"
|
|
"\t\tThis has a massive impact on performance and bloat. Do not use this unless you are absolutely forced to.\n"
|
|
"\t\tTo use this feature, the API side must pass down swizzle buffers.\n"
|
|
"\t\tShould only be used by translation layers as a last resort.\n"
|
|
"\t\tRecent Metal versions do not require this workaround.\n"
|
|
"\t[--msl-ios]:\n\t\tTarget iOS Metal instead of macOS Metal.\n"
|
|
"\t[--msl-pad-fragment-output]:\n\t\tAlways emit color outputs as 4-component variables.\n"
|
|
"\t\tIn Metal, the fragment shader must emit at least as many components as the render target format.\n"
|
|
"\t[--msl-domain-lower-left]:\n\t\tUse a lower-left tessellation domain.\n"
|
|
"\t[--msl-argument-buffers]:\n\t\tEmit Indirect Argument buffers instead of plain bindings.\n"
|
|
"\t\tRequires MSL 2.0 to be enabled.\n"
|
|
"\t[--msl-texture-buffer-native]:\n\t\tEnable native support for texel buffers. Otherwise, it is emulated as a normal texture.\n"
|
|
"\t[--msl-framebuffer-fetch]:\n\t\tImplement subpass inputs with frame buffer fetch.\n"
|
|
"\t\tEmits [[color(N)]] inputs in fragment stage.\n"
|
|
"\t\tRequires iOS Metal.\n"
|
|
"\t[--msl-emulate-cube-array]:\n\t\tEmulate cube arrays with 2D array and manual math.\n"
|
|
"\t[--msl-discrete-descriptor-set <index>]:\n\t\tWhen using argument buffers, forces a specific descriptor set to be implemented without argument buffers.\n"
|
|
"\t\tUseful for implementing push descriptors in emulation layers.\n"
|
|
"\t\tCan be used multiple times for each descriptor set in question.\n"
|
|
"\t[--msl-device-argument-buffer <descriptor set index>]:\n\t\tUse device address space to hold indirect argument buffers instead of constant.\n"
|
|
"\t\tComes up when trying to support argument buffers which are larger than 64 KiB.\n"
|
|
"\t[--msl-multiview]:\n\t\tEnable SPV_KHR_multiview emulation.\n"
|
|
"\t[--msl-view-index-from-device-index]:\n\t\tTreat the view index as the device index instead.\n"
|
|
"\t\tFor multi-GPU rendering.\n"
|
|
"\t[--msl-dispatch-base]:\n\t\tAdd support for vkCmdDispatchBase() or similar APIs.\n"
|
|
"\t\tOffsets the workgroup ID based on a buffer.\n"
|
|
"\t[--msl-dynamic-buffer <set index> <binding>]:\n\t\tMarks a buffer as having dynamic offset.\n"
|
|
"\t\tThe offset is applied in the shader with pointer arithmetic.\n"
|
|
"\t\tUseful for argument buffers where it is non-trivial to apply dynamic offset otherwise.\n"
|
|
"\t[--msl-inline-uniform-block <set index> <binding>]:\n\t\tIn argument buffers, mark an UBO as being an inline uniform block which is embedded into the argument buffer itself.\n"
|
|
"\t[--msl-decoration-binding]:\n\t\tUse SPIR-V bindings directly as MSL bindings.\n"
|
|
"\t\tThis does not work in the general case as there is no descriptor set support, and combined image samplers are split up.\n"
|
|
"\t\tHowever, if the shader author knows of binding limitations, this option will avoid the need for reflection on Metal side.\n"
|
|
"\t[--msl-force-active-argument-buffer-resources]:\n\t\tAlways emit resources which are part of argument buffers.\n"
|
|
"\t\tThis makes sure that similar shaders with same resource declarations can share the argument buffer as declaring an argument buffer implies an ABI.\n"
|
|
"\t[--msl-force-native-arrays]:\n\t\tRather than implementing array types as a templated value type ala std::array<T>, use plain, native arrays.\n"
|
|
"\t\tThis will lead to worse code-gen, but can work around driver bugs on certain driver revisions of certain Intel-based Macbooks where template arrays break.\n"
|
|
"\t[--msl-disable-frag-depth-builtin]:\n\t\tDisables FragDepth output. Useful if pipeline does not enable depth, as pipeline creation might otherwise fail.\n"
|
|
"\t[--msl-disable-frag-stencil-ref-builtin]:\n\t\tDisable FragStencilRef output. Useful if pipeline does not enable stencil output, as pipeline creation might otherwise fail.\n"
|
|
"\t[--msl-enable-frag-output-mask <mask>]:\n\t\tOnly selectively enable fragment outputs. Useful if pipeline does not enable fragment output for certain locations, as pipeline creation might otherwise fail.\n"
|
|
"\t[--msl-no-clip-distance-user-varying]:\n\t\tDo not emit user varyings to emulate gl_ClipDistance in fragment shaders.\n"
|
|
);
|
|
}
|
|
|
|
static void print_help_common()
|
|
{
|
|
fprintf(stderr, "\nCommon options:\n"
|
|
"\t[--entry name]:\n\t\tUse a specific entry point. By default, the first entry point in the module is used.\n"
|
|
"\t[--stage <stage (vert, frag, geom, tesc, tese comp)>]:\n\t\tForces use of a certain shader stage.\n"
|
|
"\t\tCan disambiguate the entry point if more than one entry point exists with same name, but different stage.\n"
|
|
"\t[--emit-line-directives]:\n\t\tIf SPIR-V has OpLine directives, aim to emit those accurately in output code as well.\n"
|
|
"\t[--rename-entry-point <old> <new> <stage>]:\n\t\tRenames an entry point from what is declared in SPIR-V to code output.\n"
|
|
"\t\tMostly relevant for HLSL or MSL.\n"
|
|
"\t[--rename-interface-variable <in|out> <location> <new_variable_name>]:\n\t\tRename an interface variable based on location decoration.\n"
|
|
"\t[--force-zero-initialized-variables]:\n\t\tForces temporary variables to be initialized to zero.\n"
|
|
"\t\tCan be useful in environments where compilers do not allow potentially uninitialized variables.\n"
|
|
"\t\tThis usually comes up with Phi temporaries.\n"
|
|
"\t[--fixup-clipspace]:\n\t\tFixup Z clip-space at the end of a vertex shader. The behavior is backend-dependent.\n"
|
|
"\t\tGLSL: Rewrites [0, w] Z range (D3D/Metal/Vulkan) to GL-style [-w, w].\n"
|
|
"\t\tHLSL/MSL: Rewrites [-w, w] Z range (GL) to D3D/Metal/Vulkan-style [0, w].\n"
|
|
"\t[--flip-vert-y]:\n\t\tInverts gl_Position.y (or equivalent) at the end of a vertex shader. This is equivalent to using negative viewport height.\n"
|
|
);
|
|
}
|
|
|
|
static void print_help_obscure()
|
|
{
|
|
fprintf(stderr, "\nObscure options:\n"
|
|
"\tThese options are not meant to be used on a regular basis. They have some occasional uses in the test suite.\n"
|
|
|
|
"\t[--force-temporary]:\n\t\tAggressively emit temporary expressions instead of forwarding expressions. Very rarely used and under-tested.\n"
|
|
"\t[--revision]:\n\t\tPrints build timestamp and Git commit information (updated when cmake is configured).\n"
|
|
"\t[--iterations iter]:\n\t\tRecompiles the same shader over and over, benchmarking related.\n"
|
|
"\t[--disable-storage-image-qualifier-deduction]:\n\t\tIf storage images are received without any nonwritable or nonreadable information,\n"""
|
|
"\t\tdo not attempt to analyze usage, and always emit read/write state.\n"
|
|
"\t[--flatten-multidimensional-arrays]:\n\t\tDo not support multi-dimensional arrays and flatten them to one dimension.\n"
|
|
"\t[--cpp-interface-name <name>]:\n\t\tEmit a specific class name in C++ codegen.\n"
|
|
);
|
|
}
|
|
|
|
static void print_help()
|
|
{
|
|
print_version();
|
|
|
|
fprintf(stderr, "Usage: spirv-cross <...>\n"
|
|
"\nBasic:\n"
|
|
"\t[SPIR-V file]\n"
|
|
"\t[--output <output path>]: If not provided, prints output to stdout.\n"
|
|
"\t[--dump-resources]:\n\t\tPrints a basic reflection of the SPIR-V module along with other output.\n"
|
|
"\t[--help]:\n\t\tPrints this help message.\n"
|
|
);
|
|
|
|
print_help_backend();
|
|
print_help_common();
|
|
print_help_glsl();
|
|
print_help_msl();
|
|
print_help_hlsl();
|
|
print_help_obscure();
|
|
}
|
|
|
|
static bool remap_generic(Compiler &compiler, const SmallVector<Resource> &resources, const Remap &remap)
|
|
{
|
|
auto itr =
|
|
find_if(begin(resources), end(resources), [&remap](const Resource &res) { return res.name == remap.src_name; });
|
|
|
|
if (itr != end(resources))
|
|
{
|
|
compiler.set_remapped_variable_state(itr->id, true);
|
|
compiler.set_name(itr->id, remap.dst_name);
|
|
compiler.set_subpass_input_remapped_components(itr->id, remap.components);
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
static vector<PlsRemap> remap_pls(const SmallVector<PLSArg> &pls_variables, const SmallVector<Resource> &resources,
|
|
const SmallVector<Resource> *secondary_resources)
|
|
{
|
|
vector<PlsRemap> ret;
|
|
|
|
for (auto &pls : pls_variables)
|
|
{
|
|
bool found = false;
|
|
for (auto &res : resources)
|
|
{
|
|
if (res.name == pls.name)
|
|
{
|
|
ret.push_back({ res.id, pls.format });
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!found && secondary_resources)
|
|
{
|
|
for (auto &res : *secondary_resources)
|
|
{
|
|
if (res.name == pls.name)
|
|
{
|
|
ret.push_back({ res.id, pls.format });
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!found)
|
|
fprintf(stderr, "Did not find stage input/output/target with name \"%s\".\n", pls.name.c_str());
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static PlsFormat pls_format(const char *str)
|
|
{
|
|
if (!strcmp(str, "r11f_g11f_b10f"))
|
|
return PlsR11FG11FB10F;
|
|
else if (!strcmp(str, "r32f"))
|
|
return PlsR32F;
|
|
else if (!strcmp(str, "rg16f"))
|
|
return PlsRG16F;
|
|
else if (!strcmp(str, "rg16"))
|
|
return PlsRG16;
|
|
else if (!strcmp(str, "rgb10_a2"))
|
|
return PlsRGB10A2;
|
|
else if (!strcmp(str, "rgba8"))
|
|
return PlsRGBA8;
|
|
else if (!strcmp(str, "rgba8i"))
|
|
return PlsRGBA8I;
|
|
else if (!strcmp(str, "rgba8ui"))
|
|
return PlsRGBA8UI;
|
|
else if (!strcmp(str, "rg16i"))
|
|
return PlsRG16I;
|
|
else if (!strcmp(str, "rgb10_a2ui"))
|
|
return PlsRGB10A2UI;
|
|
else if (!strcmp(str, "rg16ui"))
|
|
return PlsRG16UI;
|
|
else if (!strcmp(str, "r32ui"))
|
|
return PlsR32UI;
|
|
else
|
|
return PlsNone;
|
|
}
|
|
|
|
static ExecutionModel stage_to_execution_model(const std::string &stage)
|
|
{
|
|
if (stage == "vert")
|
|
return ExecutionModelVertex;
|
|
else if (stage == "frag")
|
|
return ExecutionModelFragment;
|
|
else if (stage == "comp")
|
|
return ExecutionModelGLCompute;
|
|
else if (stage == "tesc")
|
|
return ExecutionModelTessellationControl;
|
|
else if (stage == "tese")
|
|
return ExecutionModelTessellationEvaluation;
|
|
else if (stage == "geom")
|
|
return ExecutionModelGeometry;
|
|
else
|
|
SPIRV_CROSS_THROW("Invalid stage.");
|
|
}
|
|
|
|
static HLSLBindingFlags hlsl_resource_type_to_flag(const std::string &arg)
|
|
{
|
|
if (arg == "push")
|
|
return HLSL_BINDING_AUTO_PUSH_CONSTANT_BIT;
|
|
else if (arg == "cbv")
|
|
return HLSL_BINDING_AUTO_CBV_BIT;
|
|
else if (arg == "srv")
|
|
return HLSL_BINDING_AUTO_SRV_BIT;
|
|
else if (arg == "uav")
|
|
return HLSL_BINDING_AUTO_UAV_BIT;
|
|
else if (arg == "sampler")
|
|
return HLSL_BINDING_AUTO_SAMPLER_BIT;
|
|
else if (arg == "all")
|
|
return HLSL_BINDING_AUTO_ALL;
|
|
else
|
|
{
|
|
fprintf(stderr, "Invalid resource type for --hlsl-auto-binding: %s\n", arg.c_str());
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static string compile_iteration(const CLIArguments &args, std::vector<uint32_t> spirv_file)
|
|
{
|
|
Parser spirv_parser(move(spirv_file));
|
|
spirv_parser.parse();
|
|
|
|
unique_ptr<CompilerGLSL> compiler;
|
|
bool combined_image_samplers = false;
|
|
bool build_dummy_sampler = false;
|
|
|
|
if (args.cpp)
|
|
{
|
|
compiler.reset(new CompilerCPP(move(spirv_parser.get_parsed_ir())));
|
|
if (args.cpp_interface_name)
|
|
static_cast<CompilerCPP *>(compiler.get())->set_interface_name(args.cpp_interface_name);
|
|
}
|
|
else if (args.msl)
|
|
{
|
|
compiler.reset(new CompilerMSL(move(spirv_parser.get_parsed_ir())));
|
|
|
|
auto *msl_comp = static_cast<CompilerMSL *>(compiler.get());
|
|
auto msl_opts = msl_comp->get_msl_options();
|
|
if (args.set_msl_version)
|
|
msl_opts.msl_version = args.msl_version;
|
|
msl_opts.capture_output_to_buffer = args.msl_capture_output_to_buffer;
|
|
msl_opts.swizzle_texture_samples = args.msl_swizzle_texture_samples;
|
|
msl_opts.invariant_float_math = args.msl_invariant_float_math;
|
|
if (args.msl_ios)
|
|
{
|
|
msl_opts.platform = CompilerMSL::Options::iOS;
|
|
msl_opts.ios_use_framebuffer_fetch_subpasses = args.msl_framebuffer_fetch;
|
|
msl_opts.emulate_cube_array = args.msl_emulate_cube_array;
|
|
}
|
|
msl_opts.pad_fragment_output_components = args.msl_pad_fragment_output;
|
|
msl_opts.tess_domain_origin_lower_left = args.msl_domain_lower_left;
|
|
msl_opts.argument_buffers = args.msl_argument_buffers;
|
|
msl_opts.texture_buffer_native = args.msl_texture_buffer_native;
|
|
msl_opts.multiview = args.msl_multiview;
|
|
msl_opts.view_index_from_device_index = args.msl_view_index_from_device_index;
|
|
msl_opts.dispatch_base = args.msl_dispatch_base;
|
|
msl_opts.enable_decoration_binding = args.msl_decoration_binding;
|
|
msl_opts.force_active_argument_buffer_resources = args.msl_force_active_argument_buffer_resources;
|
|
msl_opts.force_native_arrays = args.msl_force_native_arrays;
|
|
msl_opts.enable_frag_depth_builtin = args.msl_enable_frag_depth_builtin;
|
|
msl_opts.enable_frag_stencil_ref_builtin = args.msl_enable_frag_stencil_ref_builtin;
|
|
msl_opts.enable_frag_output_mask = args.msl_enable_frag_output_mask;
|
|
msl_opts.enable_clip_distance_user_varying = args.msl_enable_clip_distance_user_varying;
|
|
msl_comp->set_msl_options(msl_opts);
|
|
for (auto &v : args.msl_discrete_descriptor_sets)
|
|
msl_comp->add_discrete_descriptor_set(v);
|
|
for (auto &v : args.msl_device_argument_buffers)
|
|
msl_comp->set_argument_buffer_device_address_space(v, true);
|
|
uint32_t i = 0;
|
|
for (auto &v : args.msl_dynamic_buffers)
|
|
msl_comp->add_dynamic_buffer(v.first, v.second, i++);
|
|
for (auto &v : args.msl_inline_uniform_blocks)
|
|
msl_comp->add_inline_uniform_block(v.first, v.second);
|
|
}
|
|
else if (args.hlsl)
|
|
compiler.reset(new CompilerHLSL(move(spirv_parser.get_parsed_ir())));
|
|
else
|
|
{
|
|
combined_image_samplers = !args.vulkan_semantics;
|
|
if (!args.vulkan_semantics || args.vulkan_glsl_disable_ext_samplerless_texture_functions)
|
|
build_dummy_sampler = true;
|
|
compiler.reset(new CompilerGLSL(move(spirv_parser.get_parsed_ir())));
|
|
}
|
|
|
|
if (!args.variable_type_remaps.empty())
|
|
{
|
|
auto remap_cb = [&](const SPIRType &, const string &name, string &out) -> void {
|
|
for (const VariableTypeRemap &remap : args.variable_type_remaps)
|
|
if (name == remap.variable_name)
|
|
out = remap.new_variable_type;
|
|
};
|
|
|
|
compiler->set_variable_type_remap_callback(move(remap_cb));
|
|
}
|
|
|
|
for (auto &rename : args.entry_point_rename)
|
|
compiler->rename_entry_point(rename.old_name, rename.new_name, rename.execution_model);
|
|
|
|
auto entry_points = compiler->get_entry_points_and_stages();
|
|
auto entry_point = args.entry;
|
|
ExecutionModel model = ExecutionModelMax;
|
|
|
|
if (!args.entry_stage.empty())
|
|
{
|
|
model = stage_to_execution_model(args.entry_stage);
|
|
if (entry_point.empty())
|
|
{
|
|
// Just use the first entry point with this stage.
|
|
for (auto &e : entry_points)
|
|
{
|
|
if (e.execution_model == model)
|
|
{
|
|
entry_point = e.name;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (entry_point.empty())
|
|
{
|
|
fprintf(stderr, "Could not find an entry point with stage: %s\n", args.entry_stage.c_str());
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Make sure both stage and name exists.
|
|
bool exists = false;
|
|
for (auto &e : entry_points)
|
|
{
|
|
if (e.execution_model == model && e.name == entry_point)
|
|
{
|
|
exists = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!exists)
|
|
{
|
|
fprintf(stderr, "Could not find an entry point %s with stage: %s\n", entry_point.c_str(),
|
|
args.entry_stage.c_str());
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
}
|
|
else if (!entry_point.empty())
|
|
{
|
|
// Make sure there is just one entry point with this name, or the stage
|
|
// is ambiguous.
|
|
uint32_t stage_count = 0;
|
|
for (auto &e : entry_points)
|
|
{
|
|
if (e.name == entry_point)
|
|
{
|
|
stage_count++;
|
|
model = e.execution_model;
|
|
}
|
|
}
|
|
|
|
if (stage_count == 0)
|
|
{
|
|
fprintf(stderr, "There is no entry point with name: %s\n", entry_point.c_str());
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
else if (stage_count > 1)
|
|
{
|
|
fprintf(stderr, "There is more than one entry point with name: %s. Use --stage.\n", entry_point.c_str());
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
if (!entry_point.empty())
|
|
compiler->set_entry_point(entry_point, model);
|
|
|
|
if (!args.set_version && !compiler->get_common_options().version)
|
|
{
|
|
fprintf(stderr, "Didn't specify GLSL version and SPIR-V did not specify language.\n");
|
|
print_help();
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
CompilerGLSL::Options opts = compiler->get_common_options();
|
|
if (args.set_version)
|
|
opts.version = args.version;
|
|
if (args.set_es)
|
|
opts.es = args.es;
|
|
opts.force_temporary = args.force_temporary;
|
|
opts.separate_shader_objects = args.sso;
|
|
opts.flatten_multidimensional_arrays = args.flatten_multidimensional_arrays;
|
|
opts.enable_420pack_extension = args.use_420pack_extension;
|
|
opts.vulkan_semantics = args.vulkan_semantics;
|
|
opts.vertex.fixup_clipspace = args.fixup;
|
|
opts.vertex.flip_vert_y = args.yflip;
|
|
opts.vertex.support_nonzero_base_instance = args.support_nonzero_baseinstance;
|
|
opts.emit_push_constant_as_uniform_buffer = args.glsl_emit_push_constant_as_ubo;
|
|
opts.emit_uniform_buffer_as_plain_uniforms = args.glsl_emit_ubo_as_plain_uniforms;
|
|
opts.emit_line_directives = args.emit_line_directives;
|
|
opts.enable_storage_image_qualifier_deduction = args.enable_storage_image_qualifier_deduction;
|
|
opts.force_zero_initialized_variables = args.force_zero_initialized_variables;
|
|
compiler->set_common_options(opts);
|
|
|
|
for (auto &fetch : args.glsl_ext_framebuffer_fetch)
|
|
compiler->remap_ext_framebuffer_fetch(fetch.first, fetch.second);
|
|
|
|
// Set HLSL specific options.
|
|
if (args.hlsl)
|
|
{
|
|
auto *hlsl = static_cast<CompilerHLSL *>(compiler.get());
|
|
auto hlsl_opts = hlsl->get_hlsl_options();
|
|
if (args.set_shader_model)
|
|
{
|
|
if (args.shader_model < 30)
|
|
{
|
|
fprintf(stderr, "Shader model earlier than 30 (3.0) not supported.\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
hlsl_opts.shader_model = args.shader_model;
|
|
}
|
|
|
|
if (args.hlsl_compat)
|
|
{
|
|
// Enable all compat options.
|
|
hlsl_opts.point_size_compat = true;
|
|
hlsl_opts.point_coord_compat = true;
|
|
}
|
|
|
|
if (hlsl_opts.shader_model <= 30)
|
|
{
|
|
combined_image_samplers = true;
|
|
build_dummy_sampler = true;
|
|
}
|
|
|
|
hlsl_opts.support_nonzero_base_vertex_base_instance = args.hlsl_support_nonzero_base;
|
|
hlsl_opts.force_storage_buffer_as_uav = args.hlsl_force_storage_buffer_as_uav;
|
|
hlsl_opts.nonwritable_uav_texture_as_srv = args.hlsl_nonwritable_uav_texture_as_srv;
|
|
hlsl->set_hlsl_options(hlsl_opts);
|
|
hlsl->set_resource_binding_flags(args.hlsl_binding_flags);
|
|
}
|
|
|
|
if (build_dummy_sampler)
|
|
{
|
|
uint32_t sampler = compiler->build_dummy_sampler_for_combined_images();
|
|
if (sampler != 0)
|
|
{
|
|
// Set some defaults to make validation happy.
|
|
compiler->set_decoration(sampler, DecorationDescriptorSet, 0);
|
|
compiler->set_decoration(sampler, DecorationBinding, 0);
|
|
}
|
|
}
|
|
|
|
ShaderResources res;
|
|
if (args.remove_unused)
|
|
{
|
|
auto active = compiler->get_active_interface_variables();
|
|
res = compiler->get_shader_resources(active);
|
|
compiler->set_enabled_interface_variables(move(active));
|
|
}
|
|
else
|
|
res = compiler->get_shader_resources();
|
|
|
|
if (args.flatten_ubo)
|
|
{
|
|
for (auto &ubo : res.uniform_buffers)
|
|
compiler->flatten_buffer_block(ubo.id);
|
|
for (auto &ubo : res.push_constant_buffers)
|
|
compiler->flatten_buffer_block(ubo.id);
|
|
}
|
|
|
|
auto pls_inputs = remap_pls(args.pls_in, res.stage_inputs, &res.subpass_inputs);
|
|
auto pls_outputs = remap_pls(args.pls_out, res.stage_outputs, nullptr);
|
|
compiler->remap_pixel_local_storage(move(pls_inputs), move(pls_outputs));
|
|
|
|
for (auto &ext : args.extensions)
|
|
compiler->require_extension(ext);
|
|
|
|
for (auto &remap : args.remaps)
|
|
{
|
|
if (remap_generic(*compiler, res.stage_inputs, remap))
|
|
continue;
|
|
if (remap_generic(*compiler, res.stage_outputs, remap))
|
|
continue;
|
|
if (remap_generic(*compiler, res.subpass_inputs, remap))
|
|
continue;
|
|
}
|
|
|
|
for (auto &rename : args.interface_variable_renames)
|
|
{
|
|
if (rename.storageClass == StorageClassInput)
|
|
spirv_cross_util::rename_interface_variable(*compiler, res.stage_inputs, rename.location,
|
|
rename.variable_name);
|
|
else if (rename.storageClass == StorageClassOutput)
|
|
spirv_cross_util::rename_interface_variable(*compiler, res.stage_outputs, rename.location,
|
|
rename.variable_name);
|
|
else
|
|
{
|
|
fprintf(stderr, "error at --rename-interface-variable <in|out> ...\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
if (combined_image_samplers)
|
|
{
|
|
compiler->build_combined_image_samplers();
|
|
if (args.combined_samplers_inherit_bindings)
|
|
spirv_cross_util::inherit_combined_sampler_bindings(*compiler);
|
|
|
|
// Give the remapped combined samplers new names.
|
|
for (auto &remap : compiler->get_combined_image_samplers())
|
|
{
|
|
compiler->set_name(remap.combined_id, join("SPIRV_Cross_Combined", compiler->get_name(remap.image_id),
|
|
compiler->get_name(remap.sampler_id)));
|
|
}
|
|
}
|
|
|
|
if (args.hlsl)
|
|
{
|
|
auto *hlsl_compiler = static_cast<CompilerHLSL *>(compiler.get());
|
|
uint32_t new_builtin = hlsl_compiler->remap_num_workgroups_builtin();
|
|
if (new_builtin)
|
|
{
|
|
hlsl_compiler->set_decoration(new_builtin, DecorationDescriptorSet, 0);
|
|
hlsl_compiler->set_decoration(new_builtin, DecorationBinding, 0);
|
|
}
|
|
}
|
|
|
|
if (args.hlsl)
|
|
{
|
|
for (auto &remap : args.hlsl_attr_remap)
|
|
static_cast<CompilerHLSL *>(compiler.get())->add_vertex_attribute_remap(remap);
|
|
}
|
|
|
|
auto ret = compiler->compile();
|
|
|
|
if (args.dump_resources)
|
|
{
|
|
print_resources(*compiler, res);
|
|
print_push_constant_resources(*compiler, res.push_constant_buffers);
|
|
print_spec_constants(*compiler);
|
|
print_capabilities_and_extensions(*compiler);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int main_inner(int argc, char *argv[])
|
|
{
|
|
CLIArguments args;
|
|
CLICallbacks cbs;
|
|
|
|
cbs.add("--help", [](CLIParser &parser) {
|
|
print_help();
|
|
parser.end();
|
|
});
|
|
cbs.add("--revision", [](CLIParser &parser) {
|
|
print_version();
|
|
parser.end();
|
|
});
|
|
cbs.add("--output", [&args](CLIParser &parser) { args.output = parser.next_string(); });
|
|
cbs.add("--es", [&args](CLIParser &) {
|
|
args.es = true;
|
|
args.set_es = true;
|
|
});
|
|
cbs.add("--no-es", [&args](CLIParser &) {
|
|
args.es = false;
|
|
args.set_es = true;
|
|
});
|
|
cbs.add("--version", [&args](CLIParser &parser) {
|
|
args.version = parser.next_uint();
|
|
args.set_version = true;
|
|
});
|
|
cbs.add("--dump-resources", [&args](CLIParser &) { args.dump_resources = true; });
|
|
cbs.add("--force-temporary", [&args](CLIParser &) { args.force_temporary = true; });
|
|
cbs.add("--flatten-ubo", [&args](CLIParser &) { args.flatten_ubo = true; });
|
|
cbs.add("--fixup-clipspace", [&args](CLIParser &) { args.fixup = true; });
|
|
cbs.add("--flip-vert-y", [&args](CLIParser &) { args.yflip = true; });
|
|
cbs.add("--iterations", [&args](CLIParser &parser) { args.iterations = parser.next_uint(); });
|
|
cbs.add("--cpp", [&args](CLIParser &) { args.cpp = true; });
|
|
cbs.add("--reflect", [&args](CLIParser &parser) { args.reflect = parser.next_value_string("json"); });
|
|
cbs.add("--cpp-interface-name", [&args](CLIParser &parser) { args.cpp_interface_name = parser.next_string(); });
|
|
cbs.add("--metal", [&args](CLIParser &) { args.msl = true; }); // Legacy compatibility
|
|
cbs.add("--glsl-emit-push-constant-as-ubo", [&args](CLIParser &) { args.glsl_emit_push_constant_as_ubo = true; });
|
|
cbs.add("--glsl-emit-ubo-as-plain-uniforms", [&args](CLIParser &) { args.glsl_emit_ubo_as_plain_uniforms = true; });
|
|
cbs.add("--glsl-remap-ext-framebuffer-fetch", [&args](CLIParser &parser) {
|
|
uint32_t input_index = parser.next_uint();
|
|
uint32_t color_attachment = parser.next_uint();
|
|
args.glsl_ext_framebuffer_fetch.push_back({ input_index, color_attachment });
|
|
});
|
|
cbs.add("--vulkan-glsl-disable-ext-samplerless-texture-functions",
|
|
[&args](CLIParser &) { args.vulkan_glsl_disable_ext_samplerless_texture_functions = true; });
|
|
cbs.add("--disable-storage-image-qualifier-deduction",
|
|
[&args](CLIParser &) { args.enable_storage_image_qualifier_deduction = false; });
|
|
cbs.add("--force-zero-initialized-variables",
|
|
[&args](CLIParser &) { args.force_zero_initialized_variables = true; });
|
|
cbs.add("--msl", [&args](CLIParser &) { args.msl = true; });
|
|
cbs.add("--hlsl", [&args](CLIParser &) { args.hlsl = true; });
|
|
cbs.add("--hlsl-enable-compat", [&args](CLIParser &) { args.hlsl_compat = true; });
|
|
cbs.add("--hlsl-support-nonzero-basevertex-baseinstance",
|
|
[&args](CLIParser &) { args.hlsl_support_nonzero_base = true; });
|
|
cbs.add("--hlsl-auto-binding", [&args](CLIParser &parser) {
|
|
args.hlsl_binding_flags |= hlsl_resource_type_to_flag(parser.next_string());
|
|
});
|
|
cbs.add("--hlsl-force-storage-buffer-as-uav",
|
|
[&args](CLIParser &) { args.hlsl_force_storage_buffer_as_uav = true; });
|
|
cbs.add("--hlsl-nonwritable-uav-texture-as-srv",
|
|
[&args](CLIParser &) { args.hlsl_nonwritable_uav_texture_as_srv = true; });
|
|
cbs.add("--vulkan-semantics", [&args](CLIParser &) { args.vulkan_semantics = true; });
|
|
cbs.add("-V", [&args](CLIParser &) { args.vulkan_semantics = true; });
|
|
cbs.add("--flatten-multidimensional-arrays", [&args](CLIParser &) { args.flatten_multidimensional_arrays = true; });
|
|
cbs.add("--no-420pack-extension", [&args](CLIParser &) { args.use_420pack_extension = false; });
|
|
cbs.add("--msl-capture-output", [&args](CLIParser &) { args.msl_capture_output_to_buffer = true; });
|
|
cbs.add("--msl-swizzle-texture-samples", [&args](CLIParser &) { args.msl_swizzle_texture_samples = true; });
|
|
cbs.add("--msl-ios", [&args](CLIParser &) { args.msl_ios = true; });
|
|
cbs.add("--msl-pad-fragment-output", [&args](CLIParser &) { args.msl_pad_fragment_output = true; });
|
|
cbs.add("--msl-domain-lower-left", [&args](CLIParser &) { args.msl_domain_lower_left = true; });
|
|
cbs.add("--msl-argument-buffers", [&args](CLIParser &) { args.msl_argument_buffers = true; });
|
|
cbs.add("--msl-discrete-descriptor-set",
|
|
[&args](CLIParser &parser) { args.msl_discrete_descriptor_sets.push_back(parser.next_uint()); });
|
|
cbs.add("--msl-device-argument-buffer",
|
|
[&args](CLIParser &parser) { args.msl_device_argument_buffers.push_back(parser.next_uint()); });
|
|
cbs.add("--msl-texture-buffer-native", [&args](CLIParser &) { args.msl_texture_buffer_native = true; });
|
|
cbs.add("--msl-framebuffer-fetch", [&args](CLIParser &) { args.msl_framebuffer_fetch = true; });
|
|
cbs.add("--msl-invariant-float-math", [&args](CLIParser &) { args.msl_invariant_float_math = true; });
|
|
cbs.add("--msl-emulate-cube-array", [&args](CLIParser &) { args.msl_emulate_cube_array = true; });
|
|
cbs.add("--msl-multiview", [&args](CLIParser &) { args.msl_multiview = true; });
|
|
cbs.add("--msl-view-index-from-device-index",
|
|
[&args](CLIParser &) { args.msl_view_index_from_device_index = true; });
|
|
cbs.add("--msl-dispatch-base", [&args](CLIParser &) { args.msl_dispatch_base = true; });
|
|
cbs.add("--msl-dynamic-buffer", [&args](CLIParser &parser) {
|
|
args.msl_argument_buffers = true;
|
|
// Make sure next_uint() is called in-order.
|
|
uint32_t desc_set = parser.next_uint();
|
|
uint32_t binding = parser.next_uint();
|
|
args.msl_dynamic_buffers.push_back(make_pair(desc_set, binding));
|
|
});
|
|
cbs.add("--msl-decoration-binding", [&args](CLIParser &) { args.msl_decoration_binding = true; });
|
|
cbs.add("--msl-force-active-argument-buffer-resources",
|
|
[&args](CLIParser &) { args.msl_force_active_argument_buffer_resources = true; });
|
|
cbs.add("--msl-inline-uniform-block", [&args](CLIParser &parser) {
|
|
args.msl_argument_buffers = true;
|
|
// Make sure next_uint() is called in-order.
|
|
uint32_t desc_set = parser.next_uint();
|
|
uint32_t binding = parser.next_uint();
|
|
args.msl_inline_uniform_blocks.push_back(make_pair(desc_set, binding));
|
|
});
|
|
cbs.add("--msl-force-native-arrays", [&args](CLIParser &) { args.msl_force_native_arrays = true; });
|
|
cbs.add("--msl-disable-frag-depth-builtin", [&args](CLIParser &) { args.msl_enable_frag_depth_builtin = false; });
|
|
cbs.add("--msl-disable-frag-stencil-ref-builtin",
|
|
[&args](CLIParser &) { args.msl_enable_frag_stencil_ref_builtin = false; });
|
|
cbs.add("--msl-enable-frag-output-mask",
|
|
[&args](CLIParser &parser) { args.msl_enable_frag_output_mask = parser.next_hex_uint(); });
|
|
cbs.add("--msl-no-clip-distance-user-varying",
|
|
[&args](CLIParser &) { args.msl_enable_clip_distance_user_varying = false; });
|
|
cbs.add("--extension", [&args](CLIParser &parser) { args.extensions.push_back(parser.next_string()); });
|
|
cbs.add("--rename-entry-point", [&args](CLIParser &parser) {
|
|
auto old_name = parser.next_string();
|
|
auto new_name = parser.next_string();
|
|
auto model = stage_to_execution_model(parser.next_string());
|
|
args.entry_point_rename.push_back({ old_name, new_name, move(model) });
|
|
});
|
|
cbs.add("--entry", [&args](CLIParser &parser) { args.entry = parser.next_string(); });
|
|
cbs.add("--stage", [&args](CLIParser &parser) { args.entry_stage = parser.next_string(); });
|
|
cbs.add("--separate-shader-objects", [&args](CLIParser &) { args.sso = true; });
|
|
cbs.add("--set-hlsl-vertex-input-semantic", [&args](CLIParser &parser) {
|
|
HLSLVertexAttributeRemap remap;
|
|
remap.location = parser.next_uint();
|
|
remap.semantic = parser.next_string();
|
|
args.hlsl_attr_remap.push_back(move(remap));
|
|
});
|
|
|
|
cbs.add("--remap", [&args](CLIParser &parser) {
|
|
string src = parser.next_string();
|
|
string dst = parser.next_string();
|
|
uint32_t components = parser.next_uint();
|
|
args.remaps.push_back({ move(src), move(dst), components });
|
|
});
|
|
|
|
cbs.add("--remap-variable-type", [&args](CLIParser &parser) {
|
|
string var_name = parser.next_string();
|
|
string new_type = parser.next_string();
|
|
args.variable_type_remaps.push_back({ move(var_name), move(new_type) });
|
|
});
|
|
|
|
cbs.add("--rename-interface-variable", [&args](CLIParser &parser) {
|
|
StorageClass cls = StorageClassMax;
|
|
string clsStr = parser.next_string();
|
|
if (clsStr == "in")
|
|
cls = StorageClassInput;
|
|
else if (clsStr == "out")
|
|
cls = StorageClassOutput;
|
|
|
|
uint32_t loc = parser.next_uint();
|
|
string var_name = parser.next_string();
|
|
args.interface_variable_renames.push_back({ cls, loc, move(var_name) });
|
|
});
|
|
|
|
cbs.add("--pls-in", [&args](CLIParser &parser) {
|
|
auto fmt = pls_format(parser.next_string());
|
|
auto name = parser.next_string();
|
|
args.pls_in.push_back({ move(fmt), move(name) });
|
|
});
|
|
cbs.add("--pls-out", [&args](CLIParser &parser) {
|
|
auto fmt = pls_format(parser.next_string());
|
|
auto name = parser.next_string();
|
|
args.pls_out.push_back({ move(fmt), move(name) });
|
|
});
|
|
cbs.add("--shader-model", [&args](CLIParser &parser) {
|
|
args.shader_model = parser.next_uint();
|
|
args.set_shader_model = true;
|
|
});
|
|
cbs.add("--msl-version", [&args](CLIParser &parser) {
|
|
args.msl_version = parser.next_uint();
|
|
args.set_msl_version = true;
|
|
});
|
|
|
|
cbs.add("--remove-unused-variables", [&args](CLIParser &) { args.remove_unused = true; });
|
|
cbs.add("--combined-samplers-inherit-bindings",
|
|
[&args](CLIParser &) { args.combined_samplers_inherit_bindings = true; });
|
|
|
|
cbs.add("--no-support-nonzero-baseinstance", [&](CLIParser &) { args.support_nonzero_baseinstance = false; });
|
|
cbs.add("--emit-line-directives", [&args](CLIParser &) { args.emit_line_directives = true; });
|
|
|
|
cbs.default_handler = [&args](const char *value) { args.input = value; };
|
|
cbs.error_handler = [] { print_help(); };
|
|
|
|
CLIParser parser{ move(cbs), argc - 1, argv + 1 };
|
|
if (!parser.parse())
|
|
return EXIT_FAILURE;
|
|
else if (parser.ended_state)
|
|
return EXIT_SUCCESS;
|
|
|
|
if (!args.input)
|
|
{
|
|
fprintf(stderr, "Didn't specify input file.\n");
|
|
print_help();
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
auto spirv_file = read_spirv_file(args.input);
|
|
if (spirv_file.empty())
|
|
return EXIT_FAILURE;
|
|
|
|
// Special case reflection because it has little to do with the path followed by code-outputting compilers
|
|
if (!args.reflect.empty())
|
|
{
|
|
Parser spirv_parser(move(spirv_file));
|
|
spirv_parser.parse();
|
|
|
|
CompilerReflection compiler(move(spirv_parser.get_parsed_ir()));
|
|
compiler.set_format(args.reflect);
|
|
auto json = compiler.compile();
|
|
if (args.output)
|
|
write_string_to_file(args.output, json.c_str());
|
|
else
|
|
printf("%s", json.c_str());
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
string compiled_output;
|
|
|
|
if (args.iterations == 1)
|
|
compiled_output = compile_iteration(args, move(spirv_file));
|
|
else
|
|
{
|
|
for (unsigned i = 0; i < args.iterations; i++)
|
|
compiled_output = compile_iteration(args, spirv_file);
|
|
}
|
|
|
|
if (args.output)
|
|
write_string_to_file(args.output, compiled_output.c_str());
|
|
else
|
|
printf("%s", compiled_output.c_str());
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
#ifdef SPIRV_CROSS_EXCEPTIONS_TO_ASSERTIONS
|
|
return main_inner(argc, argv);
|
|
#else
|
|
// Make sure we catch the exception or it just disappears into the aether on Windows.
|
|
try
|
|
{
|
|
return main_inner(argc, argv);
|
|
}
|
|
catch (const std::exception &e)
|
|
{
|
|
fprintf(stderr, "SPIRV-Cross threw an exception: %s\n", e.what());
|
|
return EXIT_FAILURE;
|
|
}
|
|
#endif
|
|
}
|