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// Copyright (c) 2015-2016 The Khronos Group Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <cstdio>
#include <cstring>
#include <vector>
#include "source/spirv_target_env.h"
#include "spirv-tools/libspirv.h"
#include "tools/io.h"
void print_usage(char* argv0) {
std::string target_env_list = spvTargetEnvList(19, 80);
printf(
R"(%s - Create a SPIR-V binary module from SPIR-V assembly text
Usage: %s [options] [<filename>]
The SPIR-V assembly text is read from <filename>. If no file is specified,
or if the filename is "-", then the assembly text is read from standard input.
The SPIR-V binary module is written to file "out.spv", unless the -o option
is used.
Options:
-h, --help Print this help.
-o <filename> Set the output filename. Use '-' to mean stdout.
--version Display assembler version information.
--preserve-numeric-ids
Numeric IDs in the binary will have the same values as in the
source. Non-numeric IDs are allocated by filling in the gaps,
starting with 1 and going up.
--target-env {%s}
Use specified environment.
)",
argv0, argv0, target_env_list.c_str());
}
static const auto kDefaultEnvironment = SPV_ENV_UNIVERSAL_1_5;
int main(int argc, char** argv) {
const char* inFile = nullptr;
const char* outFile = nullptr;
uint32_t options = 0;
spv_target_env target_env = kDefaultEnvironment;
for (int argi = 1; argi < argc; ++argi) {
if ('-' == argv[argi][0]) {
switch (argv[argi][1]) {
case 'h': {
print_usage(argv[0]);
return 0;
}
case 'o': {
if (!outFile && argi + 1 < argc) {
outFile = argv[++argi];
} else {
print_usage(argv[0]);
return 1;
}
} break;
case 0: {
// Setting a filename of "-" to indicate stdin.
if (!inFile) {
inFile = argv[argi];
} else {
fprintf(stderr, "error: More than one input file specified\n");
return 1;
}
} break;
case '-': {
// Long options
if (0 == strcmp(argv[argi], "--version")) {
printf("%s\n", spvSoftwareVersionDetailsString());
printf("Target: %s\n",
spvTargetEnvDescription(kDefaultEnvironment));
return 0;
} else if (0 == strcmp(argv[argi], "--help")) {
print_usage(argv[0]);
return 0;
} else if (0 == strcmp(argv[argi], "--preserve-numeric-ids")) {
options |= SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS;
} else if (0 == strcmp(argv[argi], "--target-env")) {
if (argi + 1 < argc) {
const auto env_str = argv[++argi];
if (!spvParseTargetEnv(env_str, &target_env)) {
fprintf(stderr, "error: Unrecognized target env: %s\n",
env_str);
return 1;
}
} else {
fprintf(stderr, "error: Missing argument to --target-env\n");
return 1;
}
} else {
fprintf(stderr, "error: Unrecognized option: %s\n\n", argv[argi]);
print_usage(argv[0]);
return 1;
}
} break;
default:
fprintf(stderr, "error: Unrecognized option: %s\n\n", argv[argi]);
print_usage(argv[0]);
return 1;
}
} else {
if (!inFile) {
inFile = argv[argi];
} else {
fprintf(stderr, "error: More than one input file specified\n");
return 1;
}
}
}
if (!outFile) {
outFile = "out.spv";
}
std::vector<char> contents;
if (!ReadTextFile<char>(inFile, &contents)) return 1;
spv_binary binary;
spv_diagnostic diagnostic = nullptr;
spv_context context = spvContextCreate(target_env);
spv_result_t error = spvTextToBinaryWithOptions(
context, contents.data(), contents.size(), options, &binary, &diagnostic);
spvContextDestroy(context);
if (error) {
spvDiagnosticPrint(diagnostic);
spvDiagnosticDestroy(diagnostic);
return error;
}
if (!WriteFile<uint32_t>(outFile, "wb", binary->code, binary->wordCount)) {
spvBinaryDestroy(binary);
return 1;
}
spvBinaryDestroy(binary);
return 0;
}
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