2 //Copyright (C) 2015 LunarG, Inc.
6 //Redistribution and use in source and binary forms, with or without
7 //modification, are permitted provided that the following conditions
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11 // notice, this list of conditions and the following disclaimer.
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14 // copyright notice, this list of conditions and the following
15 // disclaimer in the documentation and/or other materials provided
16 // with the distribution.
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19 // contributors may be used to endorse or promote products derived
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41 #include "../SPIRV/SPVRemapper.h"
45 typedef unsigned int SpvWord;
47 // Poor man's basename: given a complete path, return file portion.
49 // Linux: /foo/bar/test -> test
50 // Win: c:\foo\bar\test -> test
51 // It's not very efficient, but that doesn't matter for our minimal-duty use.
52 // Using boost::filesystem would be better in many ways, but want to avoid that dependency.
54 // OS dependent path separator (avoiding boost::filesystem dependency)
56 char path_sep_char() { return '\\'; }
58 char path_sep_char() { return '/'; }
61 std::string basename(const std::string filename)
63 const size_t sepLoc = filename.find_last_of(path_sep_char());
65 return (sepLoc == filename.npos) ? filename : filename.substr(sepLoc+1);
68 void errHandler(const std::string& str) {
69 std::cout << str << std::endl;
73 void logHandler(const std::string& str) {
74 std::cout << str << std::endl;
77 // Read word stream from disk
78 void read(std::vector<SpvWord>& spv, const std::string& inFilename, int verbosity)
83 logHandler(std::string(" reading: ") + inFilename);
86 fp.open(inFilename, std::fstream::in | std::fstream::binary);
89 errHandler("error opening file for read: ");
91 // Reserve space (for efficiency, not for correctness)
93 spv.reserve(size_t(fp.tellg()) / sizeof(SpvWord));
98 fp.read((char *)&inWord, sizeof(inWord));
101 spv.push_back(inWord);
103 errHandler(std::string("error reading file: ") + inFilename);
108 void write(std::vector<SpvWord>& spv, const std::string& outFile, int verbosity)
111 errHandler("missing output filename.");
116 logHandler(std::string(" writing: ") + outFile);
118 fp.open(outFile, std::fstream::out | std::fstream::binary);
121 errHandler(std::string("error opening file for write: ") + outFile);
123 for (auto word : spv) {
124 fp.write((char *)&word, sizeof(word));
126 errHandler(std::string("error writing file: ") + outFile);
129 // file is closed by destructor
132 // Print helpful usage message to stdout, and exit
133 void usage(const char* const name, const char* const msg = 0)
136 std::cout << msg << std::endl << std::endl;
138 std::cout << "Usage: " << std::endl;
140 std::cout << " " << basename(name)
141 << " [-v[v[...]] | --verbose [int]]"
142 << " [--map (all|types|names|funcs)]"
143 << " [--dce (all|types|funcs)]"
144 << " [--opt (all|loadstore)]"
145 << " [--strip-all | --strip all | -s]"
146 << " [--do-everything]"
147 << " --input | -i file1 [file2...] --output|-o DESTDIR"
150 std::cout << " " << basename(name) << " [--version | -V]" << std::endl;
151 std::cout << " " << basename(name) << " [--help | -?]" << std::endl;
156 // grind through each SPIR in turn
157 void execute(const std::vector<std::string>& inputFile, const std::string& outputDir,
158 int opts, int verbosity)
160 for (const auto& filename : inputFile) {
161 std::vector<SpvWord> spv;
162 read(spv, filename, verbosity);
163 spv::spirvbin_t(verbosity).remap(spv, opts);
165 const std::string outfile = outputDir + path_sep_char() + basename(filename);
167 write(spv, outfile, verbosity);
171 std::cout << "Done: " << inputFile.size() << " file(s) processed" << std::endl;
174 // Parse command line options
175 void parseCmdLine(int argc, char** argv, std::vector<std::string>& inputFile,
176 std::string& outputDir,
184 options = spv::spirvbin_t::NONE;
186 // Parse command line.
187 // boost::program_options would be quite a bit nicer, but we don't want to
188 // introduce a dependency on boost.
189 for (int a=1; a<argc; ) {
190 const std::string arg = argv[a];
192 if (arg == "--output" || arg == "-o") {
195 usage(argv[0], "--output requires an argument");
196 if (!outputDir.empty())
197 usage(argv[0], "--output can be provided only once");
199 outputDir = argv[a++];
201 // Remove trailing directory separator characters
202 while (!outputDir.empty() && outputDir.back() == path_sep_char())
203 outputDir.pop_back();
206 else if (arg == "-vv") { verbosity = 2; ++a; } // verbosity shortcuts
207 else if (arg == "-vvv") { verbosity = 3; ++a; } // ...
208 else if (arg == "-vvvv") { verbosity = 4; ++a; } // ...
209 else if (arg == "-vvvvv") { verbosity = 5; ++a; } // ...
211 else if (arg == "--verbose" || arg == "-v") {
217 int verb = ::strtol(argv[a], &end_ptr, 10);
218 // If we have not read to the end of the string or
219 // the string contained no elements, then we do not want to
221 if (*end_ptr == '\0' && end_ptr != argv[a]) {
227 else if (arg == "--version" || arg == "-V") {
228 std::cout << basename(argv[0]) << " version 0.97 " << __DATE__ << " " << __TIME__ << std::endl;
230 } else if (arg == "--input" || arg == "-i") {
231 // Collect input files
232 for (++a; a < argc && argv[a][0] != '-'; ++a)
233 inputFile.push_back(argv[a]);
234 } else if (arg == "--do-everything") {
236 options = options | spv::spirvbin_t::DO_EVERYTHING;
237 } else if (arg == "--strip-all" || arg == "-s") {
239 options = options | spv::spirvbin_t::STRIP;
240 } else if (arg == "--strip") {
242 if (strncmp(argv[a], "all", 3) == 0) {
243 options = options | spv::spirvbin_t::STRIP;
246 } else if (arg == "--dce") {
247 // Parse comma (or colon, etc) separated list of things to dce
249 for (const char* c = argv[a]; *c; ++c) {
250 if (strncmp(c, "all", 3) == 0) {
251 options = (options | spv::spirvbin_t::DCE_ALL);
253 } else if (strncmp(c, "*", 1) == 0) {
254 options = (options | spv::spirvbin_t::DCE_ALL);
256 } else if (strncmp(c, "funcs", 5) == 0) {
257 options = (options | spv::spirvbin_t::DCE_FUNCS);
259 } else if (strncmp(c, "types", 5) == 0) {
260 options = (options | spv::spirvbin_t::DCE_TYPES);
265 } else if (arg == "--map") {
266 // Parse comma (or colon, etc) separated list of things to map
268 for (const char* c = argv[a]; *c; ++c) {
269 if (strncmp(c, "all", 3) == 0) {
270 options = (options | spv::spirvbin_t::MAP_ALL);
272 } else if (strncmp(c, "*", 1) == 0) {
273 options = (options | spv::spirvbin_t::MAP_ALL);
275 } else if (strncmp(c, "types", 5) == 0) {
276 options = (options | spv::spirvbin_t::MAP_TYPES);
278 } else if (strncmp(c, "names", 5) == 0) {
279 options = (options | spv::spirvbin_t::MAP_NAMES);
281 } else if (strncmp(c, "funcs", 5) == 0) {
282 options = (options | spv::spirvbin_t::MAP_FUNCS);
287 } else if (arg == "--opt") {
289 for (const char* c = argv[a]; *c; ++c) {
290 if (strncmp(c, "all", 3) == 0) {
291 options = (options | spv::spirvbin_t::OPT_ALL);
293 } else if (strncmp(c, "*", 1) == 0) {
294 options = (options | spv::spirvbin_t::OPT_ALL);
296 } else if (strncmp(c, "loadstore", 9) == 0) {
297 options = (options | spv::spirvbin_t::OPT_LOADSTORE);
302 } else if (arg == "--help" || arg == "-?") {
305 usage(argv[0], "Unknown command line option");
313 int main(int argc, char** argv)
315 std::vector<std::string> inputFile;
316 std::string outputDir;
321 // handle errors by exiting
322 spv::spirvbin_t::registerErrorHandler(errHandler);
324 // Log messages to std::cout
325 spv::spirvbin_t::registerLogHandler(logHandler);
331 parseCmdLine(argc, argv, inputFile, outputDir, opts, verbosity);
333 if (outputDir.empty())
334 usage(argv[0], "Output directory required");
338 // Main operations: read, remap, and write.
339 execute(inputFile, outputDir, opts, verbosity);
341 // If we get here, everything went OK! Nothing more to be done.