static void test(skiatest::Reporter* r, const char* src, SkSL::GLCaps caps, const char* expected) {
SkSL::Compiler compiler;
std::string output;
bool result = compiler.toGLSL(SkSL::Program::kFragment_Kind, src, caps, &output);
if (!result) {
SkDebugf("Unexpected error compiling %s\n%s", src, compiler.errorText().c_str());
}
REPORTER_ASSERT(r, result);
if (result) {
if (output != expected) {
SkDebugf("GLSL MISMATCH:\nsource:\n%s\n\nexpected:\n'%s'\n\nreceived:\n'%s'", src,
expected, output.c_str());
}
REPORTER_ASSERT(r, output == expected);
}
}
/**
* 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;
SkSL::String input(argv[1]);
if (input.endsWith(".vert")) {
kind = SkSL::Program::kVertex_Kind;
} else if (input.endsWith(".frag")) {
kind = SkSL::Program::kFragment_Kind;
} else if (input.endsWith(".geom")) {
kind = SkSL::Program::kGeometry_Kind;
} else if (input.endsWith(".fp")) {
kind = SkSL::Program::kFragmentProcessor_Kind;
} else {
printf("input filename must end in '.vert', '.frag', '.geom', or '.fp'\n");
exit(1);
}
std::ifstream in(argv[1]);
std::string stdText((std::istreambuf_iterator<char>(in)),
std::istreambuf_iterator<char>());
SkSL::String text(stdText.c_str());
if (in.rdstate()) {
printf("error reading '%s'\n", argv[1]);
exit(2);
}
SkSL::Program::Settings settings;
settings.fArgs.insert(std::make_pair("gpImplementsDistanceVector", 1));
SkSL::String name(argv[2]);
if (name.endsWith(".spirv")) {
SkSL::FileOutputStream out(argv[2]);
SkSL::Compiler compiler;
if (!out.isValid()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
std::unique_ptr<SkSL::Program> program = compiler.convertProgram(kind, text, settings);
if (!program || !compiler.toSPIRV(*program, out)) {
printf("%s", compiler.errorText().c_str());
exit(3);
}
if (!out.close()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
} else if (name.endsWith(".glsl")) {
SkSL::FileOutputStream out(argv[2]);
SkSL::Compiler compiler;
if (!out.isValid()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
std::unique_ptr<SkSL::Program> program = compiler.convertProgram(kind, text, settings);
if (!program || !compiler.toGLSL(*program, out)) {
printf("%s", compiler.errorText().c_str());
exit(3);
}
if (!out.close()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
} else if (name.endsWith(".metal")) {
SkSL::FileOutputStream out(argv[2]);
SkSL::Compiler compiler;
if (!out.isValid()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
std::unique_ptr<SkSL::Program> program = compiler.convertProgram(kind, text, settings);
if (!program || !compiler.toMetal(*program, out)) {
printf("%s", compiler.errorText().c_str());
exit(3);
}
if (!out.close()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
} else if (name.endsWith(".h")) {
SkSL::FileOutputStream out(argv[2]);
SkSL::Compiler compiler(SkSL::Compiler::kPermitInvalidStaticTests_Flag);
if (!out.isValid()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
settings.fReplaceSettings = false;
std::unique_ptr<SkSL::Program> program = compiler.convertProgram(kind, text, settings);
if (!program || !compiler.toH(*program, base_name(argv[1], "Gr", ".fp"), out)) {
printf("%s", compiler.errorText().c_str());
exit(3);
}
if (!out.close()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
} else if (name.endsWith(".cpp")) {
SkSL::FileOutputStream out(argv[2]);
SkSL::Compiler compiler(SkSL::Compiler::kPermitInvalidStaticTests_Flag);
if (!out.isValid()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
settings.fReplaceSettings = false;
std::unique_ptr<SkSL::Program> program = compiler.convertProgram(kind, text, settings);
if (!program || !compiler.toCPP(*program, base_name(argv[1], "Gr", ".fp"), out)) {
printf("%s", compiler.errorText().c_str());
exit(3);
}
if (!out.close()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
} else {
printf("expected output filename to end with '.spirv', '.glsl', '.cpp', '.h', or '.metal'");
exit(1);
}
}