| /* |
| * 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::ShaderCapsFactory::Default(), out)) { |
| printf("%s", compiler.errorText().c_str()); |
| exit(3); |
| } |
| } else { |
| printf("expected output filename to end with '.spirv' or '.glsl'"); |
| } |
| } |