/* * Copyright (C) 2019 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include "WHLSLComputeDimensions.h" #if ENABLE(WEBGPU) #include "WHLSLFunctionDeclaration.h" #include "WHLSLPrepare.h" #include "WHLSLProgram.h" #include "WHLSLVisitor.h" #include <wtf/Optional.h> namespace WebCore { namespace WHLSL { Optional<ComputeDimensions> computeDimensions(Program& program, AST::FunctionDefinition& entryPoint) { Optional<ComputeDimensions> computeDimensions; for (auto& functionDefinition : program.functionDefinitions()) { bool foundNumThreadsFunctionAttribute = false; for (auto& functionAttribute : functionDefinition->attributeBlock()) { auto success = WTF::visit(WTF::makeVisitor([&](AST::NumThreadsFunctionAttribute& numThreadsFunctionAttribute) { if (foundNumThreadsFunctionAttribute) return false; foundNumThreadsFunctionAttribute = true; if (&functionDefinition == &entryPoint) { ASSERT(!computeDimensions); computeDimensions = {{ numThreadsFunctionAttribute.width(), numThreadsFunctionAttribute.height(), numThreadsFunctionAttribute.depth() }}; } return true; }), functionAttribute); if (!success) { // Cannot declare multiple numthread attributes on a single function. return WTF::nullopt; } } } return computeDimensions; } } // namespace WHLSL } // namespace WebCore #endif // ENABLE(WEBGPU)