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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "stdio.h"
#include <fstream>
#include "SkSLCompiler.h"
#include "GrContextOptions.h"
/**
* Very simple standalone executable to facilitate testing.
*/
int main(int argc, const char** argv) {
if (argc != 3) {
printf("usage: skslc <input> <output>\n");
exit(1);
}
SkSL::Program::Kind kind;
size_t len = strlen(argv[1]);
if (len > 5 && !strcmp(argv[1] + strlen(argv[1]) - 5, ".vert")) {
kind = SkSL::Program::kVertex_Kind;
} else if (len > 5 && !strcmp(argv[1] + strlen(argv[1]) - 5, ".frag")) {
kind = SkSL::Program::kFragment_Kind;
} else {
printf("input filename must end in '.vert' or '.frag'\n");
exit(1);
}
std::ifstream in(argv[1]);
std::string stdText((std::istreambuf_iterator<char>(in)),
std::istreambuf_iterator<char>());
SkString text(stdText.c_str());
if (in.rdstate()) {
printf("error reading '%s'\n", argv[1]);
exit(2);
}
SkString name(argv[2]);
if (name.endsWith(".spirv")) {
SkFILEWStream out(argv[2]);
SkSL::Compiler compiler;
if (!out.isValid()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
if (!compiler.toSPIRV(kind, text, out)) {
printf("%s", compiler.errorText().c_str());
exit(3);
}
} else if (name.endsWith(".glsl")) {
SkFILEWStream out(argv[2]);
SkSL::Compiler compiler;
if (!out.isValid()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
if (!compiler.toGLSL(kind, text, *SkSL::GLSLCapsFactory::Default(), out)) {
printf("%s", compiler.errorText().c_str());
exit(3);
}
} else {
printf("expected output filename to end with '.spirv' or '.glsl'");
}
}
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