mirror of
https://github.com/KhronosGroup/glslang
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343 lines
12 KiB
C++
343 lines
12 KiB
C++
//
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//Copyright (C) 2015 LunarG, Inc.
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//
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//All rights reserved.
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//
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//Redistribution and use in source and binary forms, with or without
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//modification, are permitted provided that the following conditions
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//are met:
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//
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// Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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//
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// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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//POSSIBILITY OF SUCH DAMAGE.
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//
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#include <iostream>
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#include <fstream>
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#include <cstring>
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#include <stdexcept>
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#include "../SPIRV/SPVRemapper.h"
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namespace {
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typedef unsigned int SpvWord;
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// Poor man's basename: given a complete path, return file portion.
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// E.g:
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// Linux: /foo/bar/test -> test
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// Win: c:\foo\bar\test -> test
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// It's not very efficient, but that doesn't matter for our minimal-duty use.
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// Using boost::filesystem would be better in many ways, but want to avoid that dependency.
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// OS dependent path separator (avoiding boost::filesystem dependency)
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#if defined(_WIN32)
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char path_sep_char() { return '\\'; }
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#else
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char path_sep_char() { return '/'; }
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#endif
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std::string basename(const std::string filename)
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{
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const size_t sepLoc = filename.find_last_of(path_sep_char());
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return (sepLoc == filename.npos) ? filename : filename.substr(sepLoc+1);
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}
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void errHandler(const std::string& str) {
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std::cout << str << std::endl;
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exit(5);
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}
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void logHandler(const std::string& str) {
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std::cout << str << std::endl;
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}
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// Read word stream from disk
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void read(std::vector<SpvWord>& spv, const std::string& inFilename, int verbosity)
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{
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std::ifstream fp;
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if (verbosity > 0)
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logHandler(std::string(" reading: ") + inFilename);
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spv.clear();
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fp.open(inFilename, std::fstream::in | std::fstream::binary);
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if (fp.fail())
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errHandler("error opening file for read: ");
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// Reserve space (for efficiency, not for correctness)
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fp.seekg(0, fp.end);
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spv.reserve(size_t(fp.tellg()) / sizeof(SpvWord));
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fp.seekg(0, fp.beg);
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while (!fp.eof()) {
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SpvWord inWord;
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fp.read((char *)&inWord, sizeof(inWord));
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if (!fp.eof()) {
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spv.push_back(inWord);
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if (fp.fail())
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errHandler(std::string("error reading file: ") + inFilename);
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}
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}
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}
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void write(std::vector<SpvWord>& spv, const std::string& outFile, int verbosity)
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{
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if (outFile.empty())
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errHandler("missing output filename.");
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std::ofstream fp;
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if (verbosity > 0)
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logHandler(std::string(" writing: ") + outFile);
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fp.open(outFile, std::fstream::out | std::fstream::binary);
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if (fp.fail())
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errHandler(std::string("error opening file for write: ") + outFile);
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for (auto word : spv) {
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fp.write((char *)&word, sizeof(word));
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if (fp.fail())
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errHandler(std::string("error writing file: ") + outFile);
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}
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// file is closed by destructor
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}
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// Print helpful usage message to stdout, and exit
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void usage(const char* const name, const char* const msg = 0)
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{
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if (msg)
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std::cout << msg << std::endl << std::endl;
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std::cout << "Usage: " << std::endl;
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std::cout << " " << basename(name)
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<< " [-v[v[...]] | --verbose [int]]"
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<< " [--map (all|types|names|funcs)]"
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<< " [--dce (all|types|funcs)]"
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<< " [--opt (all|loadstore)]"
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<< " [--strip-all | --strip all | -s]"
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<< " [--do-everything]"
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<< " --input | -i file1 [file2...] --output|-o DESTDIR"
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<< std::endl;
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std::cout << " " << basename(name) << " [--version | -V]" << std::endl;
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std::cout << " " << basename(name) << " [--help | -?]" << std::endl;
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exit(5);
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}
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// grind through each SPIR in turn
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void execute(const std::vector<std::string>& inputFile, const std::string& outputDir,
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int opts, int verbosity)
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{
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for (const auto& filename : inputFile) {
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std::vector<SpvWord> spv;
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read(spv, filename, verbosity);
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spv::spirvbin_t(verbosity).remap(spv, opts);
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const std::string outfile = outputDir + path_sep_char() + basename(filename);
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write(spv, outfile, verbosity);
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}
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if (verbosity > 0)
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std::cout << "Done: " << inputFile.size() << " file(s) processed" << std::endl;
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}
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// Parse command line options
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void parseCmdLine(int argc, char** argv, std::vector<std::string>& inputFile,
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std::string& outputDir,
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int& options,
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int& verbosity)
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{
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if (argc < 2)
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usage(argv[0]);
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verbosity = 0;
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options = spv::spirvbin_t::NONE;
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// Parse command line.
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// boost::program_options would be quite a bit nicer, but we don't want to
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// introduce a dependency on boost.
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for (int a=1; a<argc; ) {
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const std::string arg = argv[a];
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if (arg == "--output" || arg == "-o") {
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// Output directory
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if (++a >= argc)
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usage(argv[0], "--output requires an argument");
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if (!outputDir.empty())
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usage(argv[0], "--output can be provided only once");
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outputDir = argv[a++];
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// Remove trailing directory separator characters
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while (!outputDir.empty() && outputDir.back() == path_sep_char())
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outputDir.pop_back();
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}
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else if (arg == "-vv") { verbosity = 2; ++a; } // verbosity shortcuts
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else if (arg == "-vvv") { verbosity = 3; ++a; } // ...
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else if (arg == "-vvvv") { verbosity = 4; ++a; } // ...
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else if (arg == "-vvvvv") { verbosity = 5; ++a; } // ...
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else if (arg == "--verbose" || arg == "-v") {
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++a;
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verbosity = 1;
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if (a < argc) {
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char* end_ptr = 0;
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int verb = ::strtol(argv[a], &end_ptr, 10);
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// If we have not read to the end of the string or
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// the string contained no elements, then we do not want to
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// store the value.
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if (*end_ptr == '\0' && end_ptr != argv[a]) {
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verbosity = verb;
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++a;
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}
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}
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}
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else if (arg == "--version" || arg == "-V") {
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std::cout << basename(argv[0]) << " version 0.97 " << __DATE__ << " " << __TIME__ << std::endl;
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exit(0);
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} else if (arg == "--input" || arg == "-i") {
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// Collect input files
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for (++a; a < argc && argv[a][0] != '-'; ++a)
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inputFile.push_back(argv[a]);
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} else if (arg == "--do-everything") {
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++a;
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options = options | spv::spirvbin_t::DO_EVERYTHING;
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} else if (arg == "--strip-all" || arg == "-s") {
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++a;
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options = options | spv::spirvbin_t::STRIP;
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} else if (arg == "--strip") {
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++a;
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if (strncmp(argv[a], "all", 3) == 0) {
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options = options | spv::spirvbin_t::STRIP;
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++a;
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}
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} else if (arg == "--dce") {
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// Parse comma (or colon, etc) separated list of things to dce
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++a;
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for (const char* c = argv[a]; *c; ++c) {
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if (strncmp(c, "all", 3) == 0) {
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options = (options | spv::spirvbin_t::DCE_ALL);
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c += 3;
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} else if (strncmp(c, "*", 1) == 0) {
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options = (options | spv::spirvbin_t::DCE_ALL);
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c += 1;
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} else if (strncmp(c, "funcs", 5) == 0) {
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options = (options | spv::spirvbin_t::DCE_FUNCS);
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c += 5;
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} else if (strncmp(c, "types", 5) == 0) {
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options = (options | spv::spirvbin_t::DCE_TYPES);
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c += 5;
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}
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}
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++a;
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} else if (arg == "--map") {
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// Parse comma (or colon, etc) separated list of things to map
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++a;
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for (const char* c = argv[a]; *c; ++c) {
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if (strncmp(c, "all", 3) == 0) {
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options = (options | spv::spirvbin_t::MAP_ALL);
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c += 3;
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} else if (strncmp(c, "*", 1) == 0) {
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options = (options | spv::spirvbin_t::MAP_ALL);
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c += 1;
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} else if (strncmp(c, "types", 5) == 0) {
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options = (options | spv::spirvbin_t::MAP_TYPES);
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c += 5;
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} else if (strncmp(c, "names", 5) == 0) {
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options = (options | spv::spirvbin_t::MAP_NAMES);
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c += 5;
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} else if (strncmp(c, "funcs", 5) == 0) {
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options = (options | spv::spirvbin_t::MAP_FUNCS);
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c += 5;
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}
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}
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++a;
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} else if (arg == "--opt") {
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++a;
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for (const char* c = argv[a]; *c; ++c) {
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if (strncmp(c, "all", 3) == 0) {
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options = (options | spv::spirvbin_t::OPT_ALL);
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c += 3;
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} else if (strncmp(c, "*", 1) == 0) {
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options = (options | spv::spirvbin_t::OPT_ALL);
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c += 1;
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} else if (strncmp(c, "loadstore", 9) == 0) {
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options = (options | spv::spirvbin_t::OPT_LOADSTORE);
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c += 9;
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}
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}
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++a;
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} else if (arg == "--help" || arg == "-?") {
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usage(argv[0]);
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} else {
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usage(argv[0], "Unknown command line option");
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}
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}
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}
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} // namespace
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int main(int argc, char** argv)
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{
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std::vector<std::string> inputFile;
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std::string outputDir;
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int opts;
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int verbosity;
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#ifdef use_cpp11
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// handle errors by exiting
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spv::spirvbin_t::registerErrorHandler(errHandler);
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// Log messages to std::cout
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spv::spirvbin_t::registerLogHandler(logHandler);
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#endif
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if (argc < 2)
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usage(argv[0]);
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parseCmdLine(argc, argv, inputFile, outputDir, opts, verbosity);
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if (outputDir.empty())
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usage(argv[0], "Output directory required");
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std::string errmsg;
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// Main operations: read, remap, and write.
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execute(inputFile, outputDir, opts, verbosity);
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// If we get here, everything went OK! Nothing more to be done.
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}
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