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// Copyright 2021 The Tint Authors.
//
// 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.
#ifdef TINT_ENABLE_MSL_COMPILATION_USING_METAL_API
@import Metal;
// Disable: error: treating #include as an import of module 'std.string'
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wauto-import"
#include "compile.h"
#pragma clang diagnostic pop
CompileResult CompileMslUsingMetalAPI(const std::string& src) {
CompileResult result;
result.success = false;
NSError* error = nil;
id<MTLDevice> device = MTLCreateSystemDefaultDevice();
if (!device) {
result.output = "MTLCreateSystemDefaultDevice returned null";
result.success = false;
return result;
}
NSString* source = [NSString stringWithCString:src.c_str()
encoding:NSUTF8StringEncoding];
MTLCompileOptions* compileOptions = [MTLCompileOptions new];
compileOptions.languageVersion = MTLLanguageVersion1_2;
id<MTLLibrary> library = [device newLibraryWithSource:source
options:compileOptions
error:&error];
if (!library) {
NSString* output = [error localizedDescription];
result.output = [output UTF8String];
result.success = false;
}
return result;
}
#endif