| /* |
| * OSSupport.mm |
| * |
| * Copyright (c) 2015-2020 The Brenwill Workshop Ltd. (http://www.brenwill.com) |
| * |
| * 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 "OSSupport.h" |
| #include "FileSupport.h" |
| #include "MoltenVKShaderConverterTool.h" |
| |
| #import <Foundation/Foundation.h> |
| #import <Metal/Metal.h> |
| |
| using namespace std; |
| using namespace mvk; |
| |
| template <typename FileProcessor> |
| bool mvk::iterateDirectory(const string& dirPath, |
| FileProcessor& fileProcessor, |
| bool isRecursive, |
| string& errMsg) { |
| NSString* nsAbsDirPath = @(absolutePath(dirPath).data()); |
| NSFileManager* fileMgr = NSFileManager.defaultManager; |
| BOOL isDir = false; |
| BOOL exists = [fileMgr fileExistsAtPath: nsAbsDirPath isDirectory: &isDir]; |
| if ( !exists ) { |
| errMsg = "Could not locate directory: " + absolutePath(dirPath); |
| return false; |
| } |
| if ( !isDir ) { |
| errMsg = absolutePath(dirPath) + " is not a directory."; |
| return false; |
| } |
| |
| bool success = true; |
| NSDirectoryEnumerator* dirEnum = [fileMgr enumeratorAtPath: nsAbsDirPath]; |
| NSString* filePath; |
| while ((filePath = dirEnum.nextObject)) { |
| if ( !isRecursive ) { [dirEnum skipDescendants]; } |
| NSString* absFilePath = [nsAbsDirPath stringByAppendingPathComponent: filePath]; |
| if( !fileProcessor.processFile(absFilePath.UTF8String) ) { success = false; } |
| } |
| return success; |
| } |
| |
| // Concrete template implementation to allow MoltenVKShaderConverterTool to iterate the files in a directory. |
| template bool mvk::iterateDirectory<MoltenVKShaderConverterTool>(const string& dirPath, |
| MoltenVKShaderConverterTool& fileProcessor, |
| bool isRecursive, |
| string& errMsg); |
| |
| bool mvk::compile(const string& mslSourceCode, |
| string& errMsg, |
| uint32_t mslVersionMajor, |
| uint32_t mslVersionMinor, |
| uint32_t mslVersionPoint) { |
| |
| #define mslVer(MJ, MN, PT) mslVersionMajor == MJ && mslVersionMinor == MN && mslVersionPoint == PT |
| |
| MTLLanguageVersion mslVerEnum = (MTLLanguageVersion)0; |
| if (mslVer(2, 1, 0)) { |
| if (@available(macOS 10.14, *)) { |
| mslVerEnum = MTLLanguageVersion2_1; |
| } |
| } else if (mslVer(2, 0, 0)) { |
| if (@available(macOS 10.13, *)) { |
| mslVerEnum = MTLLanguageVersion2_0; |
| } |
| } else if (mslVer(1, 2, 0)) { |
| mslVerEnum = MTLLanguageVersion1_2; |
| } else if (mslVer(1, 1, 0)) { |
| mslVerEnum = MTLLanguageVersion1_1; |
| } |
| |
| if ( !mslVerEnum ) { |
| errMsg = [NSString stringWithFormat: @"%d.%d.%d is not a valid MSL version number on this device", |
| mslVersionMajor, mslVersionMinor, mslVersionPoint].UTF8String; |
| return false; |
| } |
| |
| @autoreleasepool { |
| MTLCompileOptions* mtlCompileOptions = [[MTLCompileOptions new] autorelease]; |
| mtlCompileOptions.languageVersion = mslVerEnum; |
| NSError* err = nil; |
| id<MTLLibrary> mtlLib = [[MTLCreateSystemDefaultDevice() newLibraryWithSource: @(mslSourceCode.c_str()) |
| options: mtlCompileOptions |
| error: &err] autorelease]; |
| errMsg = err ? [NSString stringWithFormat: @"(Error code %li):\n%@", (long)err.code, err.localizedDescription].UTF8String : ""; |
| return !!mtlLib; |
| } |
| } |