| /* |
| * 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 "WHLSLFunctionStageChecker.h" |
| |
| #if ENABLE(WEBGPU) |
| |
| #include "WHLSLCallExpression.h" |
| #include "WHLSLEntryPointType.h" |
| #include "WHLSLIntrinsics.h" |
| #include "WHLSLProgram.h" |
| #include "WHLSLVisitor.h" |
| |
| namespace WebCore { |
| |
| namespace WHLSL { |
| |
| class FunctionStageChecker : public Visitor { |
| public: |
| FunctionStageChecker(AST::EntryPointType entryPointType, const Intrinsics& intrinsics) |
| : m_entryPointType(entryPointType) |
| , m_intrinsics(intrinsics) |
| { |
| } |
| |
| public: |
| void visit(AST::CallExpression& callExpression) override |
| { |
| if ((&callExpression.function() == m_intrinsics.ddx() || &callExpression.function() == m_intrinsics.ddy()) && m_entryPointType != AST::EntryPointType::Fragment) { |
| setError(Error("Cannot use ddx or ddy in a non-fragment shader.", callExpression.codeLocation())); |
| return; |
| } |
| if ((&callExpression.function() == m_intrinsics.allMemoryBarrier() || &callExpression.function() == m_intrinsics.deviceMemoryBarrier() || &callExpression.function() == m_intrinsics.groupMemoryBarrier()) |
| && m_entryPointType != AST::EntryPointType::Compute) { |
| setError(Error("Cannot use memory barrier in a non-compute shader.", callExpression.codeLocation())); |
| return; |
| } |
| Visitor::visit(callExpression.function()); |
| } |
| |
| AST::EntryPointType m_entryPointType; |
| const Intrinsics& m_intrinsics; |
| }; |
| |
| Expected<void, Error> checkFunctionStages(Program& program) |
| { |
| for (auto& functionDefinition : program.functionDefinitions()) { |
| if (!functionDefinition->entryPointType()) |
| continue; |
| FunctionStageChecker functionStageChecker(*functionDefinition->entryPointType(), program.intrinsics()); |
| functionStageChecker.Visitor::visit(functionDefinition); |
| if (functionStageChecker.hasError()) |
| return makeUnexpected(functionStageChecker.result().error()); |
| } |
| return { }; |
| } |
| |
| } |
| |
| } |
| |
| #endif |