2 // Copyright (C) 2015 LunarG, Inc.
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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 // Read strings from a file
109 void read(std::vector<std::string>& strings, const std::string& inFilename, int verbosity)
114 logHandler(std::string(" reading: ") + inFilename);
117 fp.open(inFilename, std::fstream::in);
120 errHandler("error opening file for read: ");
123 while (std::getline(fp, line))
125 // Ignore empty lines and lines starting with the comment marker '#'.
126 if (line.length() == 0 || line[0] == '#') {
130 strings.push_back(line);
134 void write(std::vector<SpvWord>& spv, const std::string& outFile, int verbosity)
137 errHandler("missing output filename.");
142 logHandler(std::string(" writing: ") + outFile);
144 fp.open(outFile, std::fstream::out | std::fstream::binary);
147 errHandler(std::string("error opening file for write: ") + outFile);
149 for (auto it = spv.cbegin(); it != spv.cend(); ++it) {
151 fp.write((char *)&word, sizeof(word));
153 errHandler(std::string("error writing file: ") + outFile);
156 // file is closed by destructor
159 // Print helpful usage message to stdout, and exit
160 void usage(const char* const name, const char* const msg = 0)
163 std::cout << msg << std::endl << std::endl;
165 std::cout << "Usage: " << std::endl;
167 std::cout << " " << basename(name)
168 << " [-v[v[...]] | --verbose [int]]"
169 << " [--map (all|types|names|funcs)]"
170 << " [--dce (all|types|funcs)]"
171 << " [--opt (all|loadstore)]"
172 << " [--strip-all | --strip all | -s]"
173 << " [--strip-white-list]"
174 << " [--do-everything]"
175 << " --input | -i file1 [file2...] --output|-o DESTDIR"
178 std::cout << " " << basename(name) << " [--version | -V]" << std::endl;
179 std::cout << " " << basename(name) << " [--help | -?]" << std::endl;
184 // grind through each SPIR in turn
185 void execute(const std::vector<std::string>& inputFile, const std::string& outputDir,
186 const std::string& whiteListFile, int opts, int verbosity)
188 std::vector<std::string> whiteListStrings;
189 if(!whiteListFile.empty())
190 read(whiteListStrings, whiteListFile, verbosity);
192 for (auto it = inputFile.cbegin(); it != inputFile.cend(); ++it) {
193 const std::string &filename = *it;
194 std::vector<SpvWord> spv;
195 read(spv, filename, verbosity);
196 spv::spirvbin_t(verbosity).remap(spv, whiteListStrings, opts);
197 const std::string outfile = outputDir + path_sep_char() + basename(filename);
198 write(spv, outfile, verbosity);
202 std::cout << "Done: " << inputFile.size() << " file(s) processed" << std::endl;
205 // Parse command line options
206 void parseCmdLine(int argc, char** argv, std::vector<std::string>& inputFile,
207 std::string& outputDir,
208 std::string& stripWhiteListFile,
216 options = spv::spirvbin_t::NONE;
218 // Parse command line.
219 // boost::program_options would be quite a bit nicer, but we don't want to
220 // introduce a dependency on boost.
221 for (int a=1; a<argc; ) {
222 const std::string arg = argv[a];
224 if (arg == "--output" || arg == "-o") {
227 usage(argv[0], "--output requires an argument");
228 if (!outputDir.empty())
229 usage(argv[0], "--output can be provided only once");
231 outputDir = argv[a++];
233 // Remove trailing directory separator characters
234 while (!outputDir.empty() && outputDir.back() == path_sep_char())
235 outputDir.pop_back();
238 else if (arg == "-vv") { verbosity = 2; ++a; } // verbosity shortcuts
239 else if (arg == "-vvv") { verbosity = 3; ++a; } // ...
240 else if (arg == "-vvvv") { verbosity = 4; ++a; } // ...
241 else if (arg == "-vvvvv") { verbosity = 5; ++a; } // ...
243 else if (arg == "--verbose" || arg == "-v") {
249 int verb = ::strtol(argv[a], &end_ptr, 10);
250 // If we have not read to the end of the string or
251 // the string contained no elements, then we do not want to
253 if (*end_ptr == '\0' && end_ptr != argv[a]) {
259 else if (arg == "--version" || arg == "-V") {
260 std::cout << basename(argv[0]) << " version 0.97" << std::endl;
262 } else if (arg == "--input" || arg == "-i") {
263 // Collect input files
264 for (++a; a < argc && argv[a][0] != '-'; ++a)
265 inputFile.push_back(argv[a]);
266 } else if (arg == "--do-everything") {
268 options = options | spv::spirvbin_t::DO_EVERYTHING;
269 } else if (arg == "--strip-all" || arg == "-s") {
271 options = options | spv::spirvbin_t::STRIP;
272 } else if (arg == "--strip") {
274 if (strncmp(argv[a], "all", 3) == 0) {
275 options = options | spv::spirvbin_t::STRIP;
278 } else if (arg == "--strip-white-list") {
280 stripWhiteListFile = argv[a++];
281 } else if (arg == "--dce") {
282 // Parse comma (or colon, etc) separated list of things to dce
284 for (const char* c = argv[a]; *c; ++c) {
285 if (strncmp(c, "all", 3) == 0) {
286 options = (options | spv::spirvbin_t::DCE_ALL);
288 } else if (strncmp(c, "*", 1) == 0) {
289 options = (options | spv::spirvbin_t::DCE_ALL);
291 } else if (strncmp(c, "funcs", 5) == 0) {
292 options = (options | spv::spirvbin_t::DCE_FUNCS);
294 } else if (strncmp(c, "types", 5) == 0) {
295 options = (options | spv::spirvbin_t::DCE_TYPES);
300 } else if (arg == "--map") {
301 // Parse comma (or colon, etc) separated list of things to map
303 for (const char* c = argv[a]; *c; ++c) {
304 if (strncmp(c, "all", 3) == 0) {
305 options = (options | spv::spirvbin_t::MAP_ALL);
307 } else if (strncmp(c, "*", 1) == 0) {
308 options = (options | spv::spirvbin_t::MAP_ALL);
310 } else if (strncmp(c, "types", 5) == 0) {
311 options = (options | spv::spirvbin_t::MAP_TYPES);
313 } else if (strncmp(c, "names", 5) == 0) {
314 options = (options | spv::spirvbin_t::MAP_NAMES);
316 } else if (strncmp(c, "funcs", 5) == 0) {
317 options = (options | spv::spirvbin_t::MAP_FUNCS);
322 } else if (arg == "--opt") {
324 for (const char* c = argv[a]; *c; ++c) {
325 if (strncmp(c, "all", 3) == 0) {
326 options = (options | spv::spirvbin_t::OPT_ALL);
328 } else if (strncmp(c, "*", 1) == 0) {
329 options = (options | spv::spirvbin_t::OPT_ALL);
331 } else if (strncmp(c, "loadstore", 9) == 0) {
332 options = (options | spv::spirvbin_t::OPT_LOADSTORE);
337 } else if (arg == "--help" || arg == "-?") {
340 usage(argv[0], "Unknown command line option");
347 int main(int argc, char** argv)
349 std::vector<std::string> inputFile;
350 std::string outputDir;
351 std::string whiteListFile;
356 // handle errors by exiting
357 spv::spirvbin_t::registerErrorHandler(errHandler);
359 // Log messages to std::cout
360 spv::spirvbin_t::registerLogHandler(logHandler);
366 parseCmdLine(argc, argv, inputFile, outputDir, whiteListFile, opts, verbosity);
368 if (outputDir.empty())
369 usage(argv[0], "Output directory required");
371 // Main operations: read, remap, and write.
372 execute(inputFile, outputDir, whiteListFile, opts, verbosity);
374 // If we get here, everything went OK! Nothing more to be done.