| /* |
| * 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. |
| */ |
| |
| #pragma once |
| |
| #if ENABLE(WEBGPU) |
| |
| #include <wtf/Variant.h> |
| #include <wtf/text/StringConcatenate.h> |
| #include <wtf/text/StringConcatenateNumbers.h> |
| |
| namespace WebCore { |
| |
| namespace WHLSL { |
| |
| namespace Metal { |
| |
| struct MangledVariableName { |
| explicit operator bool() const { return value != std::numeric_limits<unsigned>::max(); } |
| unsigned value { std::numeric_limits<unsigned>::max() }; |
| static constexpr const char* prefix = "variable"; |
| }; |
| |
| struct MangledTypeName { |
| unsigned value; |
| static constexpr const char* prefix = "type"; |
| }; |
| |
| struct MangledStructureElementName { |
| unsigned value; |
| static constexpr const char* prefix = "structureElement"; |
| }; |
| |
| struct MangledEnumerationMemberName { |
| unsigned value; |
| static constexpr const char* prefix = "enumerationMember"; |
| }; |
| |
| struct MangledFunctionName { |
| unsigned value; |
| static constexpr const char* prefix = "function"; |
| |
| String toString() const { return makeString(prefix, value); } |
| }; |
| |
| using MangledOrNativeTypeName = Variant<MangledTypeName, String>; |
| |
| } // namespace Metal |
| |
| } // namespace WHLSL |
| |
| } // namespace WebCore |
| |
| namespace WTF { |
| |
| template<typename MangledNameType> |
| class MangledNameAdaptor { |
| public: |
| MangledNameAdaptor(MangledNameType name) |
| : m_name { name } |
| { |
| } |
| |
| unsigned length() { return strlen(MangledNameType::prefix) + lengthOfNumberAsStringUnsigned(m_name.value); } |
| bool is8Bit() { return true; } |
| template<typename CharacterType> void writeTo(CharacterType* destination) |
| { |
| StringImpl::copyCharacters(destination, reinterpret_cast<const LChar*>(MangledNameType::prefix), strlen(MangledNameType::prefix)); |
| writeNumberToBufferUnsigned(m_name.value, destination + strlen(MangledNameType::prefix)); |
| } |
| |
| private: |
| MangledNameType m_name; |
| }; |
| |
| template<> class StringTypeAdapter<WebCore::WHLSL::Metal::MangledVariableName, void> : public MangledNameAdaptor<WebCore::WHLSL::Metal::MangledVariableName> { |
| public: |
| StringTypeAdapter(WebCore::WHLSL::Metal::MangledVariableName name) |
| : MangledNameAdaptor(name) |
| { |
| } |
| }; |
| template<> class StringTypeAdapter<WebCore::WHLSL::Metal::MangledTypeName, void> : public MangledNameAdaptor<WebCore::WHLSL::Metal::MangledTypeName> { |
| public: |
| StringTypeAdapter(WebCore::WHLSL::Metal::MangledTypeName name) |
| : MangledNameAdaptor(name) |
| { |
| } |
| }; |
| template<> class StringTypeAdapter<WebCore::WHLSL::Metal::MangledStructureElementName, void> : public MangledNameAdaptor<WebCore::WHLSL::Metal::MangledStructureElementName> { |
| public: |
| StringTypeAdapter(WebCore::WHLSL::Metal::MangledStructureElementName name) |
| : MangledNameAdaptor(name) |
| { |
| } |
| }; |
| template<> class StringTypeAdapter<WebCore::WHLSL::Metal::MangledEnumerationMemberName, void> : public MangledNameAdaptor<WebCore::WHLSL::Metal::MangledEnumerationMemberName> { |
| public: |
| StringTypeAdapter(WebCore::WHLSL::Metal::MangledEnumerationMemberName name) |
| : MangledNameAdaptor(name) |
| { |
| } |
| }; |
| template<> class StringTypeAdapter<WebCore::WHLSL::Metal::MangledFunctionName, void> : public MangledNameAdaptor<WebCore::WHLSL::Metal::MangledFunctionName> { |
| public: |
| StringTypeAdapter(WebCore::WHLSL::Metal::MangledFunctionName name) |
| : MangledNameAdaptor(name) |
| { |
| } |
| }; |
| |
| template<> class StringTypeAdapter<WebCore::WHLSL::Metal::MangledOrNativeTypeName, void> { |
| public: |
| StringTypeAdapter(const WebCore::WHLSL::Metal::MangledOrNativeTypeName& name) |
| : m_name { name } |
| { |
| } |
| |
| unsigned length() |
| { |
| return WTF::switchOn(m_name, |
| [&] (const WebCore::WHLSL::Metal::MangledTypeName& mangledTypeName) { |
| return strlen(WebCore::WHLSL::Metal::MangledTypeName::prefix) + lengthOfNumberAsStringUnsigned(mangledTypeName.value); |
| }, |
| [&] (const String& string) { |
| return string.length(); |
| } |
| ); |
| } |
| |
| bool is8Bit() |
| { |
| return WTF::switchOn(m_name, |
| [&] (const WebCore::WHLSL::Metal::MangledTypeName&) { |
| return true; |
| }, |
| [&] (const String& string) { |
| return string.is8Bit(); |
| } |
| ); |
| } |
| |
| template<typename CharacterType> void writeTo(CharacterType* destination) |
| { |
| WTF::switchOn(m_name, |
| [&] (const WebCore::WHLSL::Metal::MangledTypeName& mangledTypeName) { |
| StringImpl::copyCharacters(destination, reinterpret_cast<const LChar*>(WebCore::WHLSL::Metal::MangledTypeName::prefix), strlen(WebCore::WHLSL::Metal::MangledTypeName::prefix)); |
| writeNumberToBufferUnsigned(mangledTypeName.value, destination + strlen(WebCore::WHLSL::Metal::MangledTypeName::prefix)); |
| }, |
| [&] (const String& string) { |
| StringView { string }.getCharactersWithUpconvert(destination); |
| } |
| ); |
| } |
| |
| private: |
| const WebCore::WHLSL::Metal::MangledOrNativeTypeName& m_name; |
| }; |
| |
| } |
| |
| #endif |