stride3d
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xkslang
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xkslang/StandAlone/spirv-remap.cpp

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