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/*
* Copyright (c) 2023 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. ``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
* 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 "WGSLEnums.h"
#include <wtf/PrintStream.h>
#include <wtf/SortedArrayMap.h>
namespace WGSL {
#define COMMA ,
#define LPAREN (
#define RPAREN )
#define CONTINUATION(args...) args RPAREN
#define EXPAND(x) x
#define ENUM_DEFINE_TO_STRING_CASE_(__type, __name, __string, ...) \
case __type::__name: \
return #__string##_s; \
break;
#define ENUM_DEFINE_TO_STRING_CASE(__name) \
ENUM_DEFINE_TO_STRING_CASE_ LPAREN __name, CONTINUATION
#define ENUM_DEFINE_TO_STRING(__name) \
ASCIILiteral toString(__name __value) \
{ \
switch (__value) { \
EXPAND(ENUM_##__name(ENUM_DEFINE_TO_STRING_CASE LPAREN __name RPAREN)) \
} \
}
#define ENUM_DEFINE_PRINT_INTERNAL(__name) \
void printInternal(PrintStream& out, __name __value) \
{ \
out.print(toString(__value)); \
}
#define ENUM_DEFINE_PARSE_ENTRY_(__type, __name, __string, ...) \
{ #__string##_s, __type::__name },
#define ENUM_DEFINE_PARSE_ENTRY(__name) \
ENUM_DEFINE_PARSE_ENTRY_ LPAREN __name, CONTINUATION
#define ENUM_DEFINE_PARSE(__name) \
const __name* parse##__name(const String& __string) \
{ \
static constexpr std::pair<ComparableASCIILiteral, __name> __entries[] { \
EXPAND(ENUM_##__name(ENUM_DEFINE_PARSE_ENTRY LPAREN __name RPAREN)) \
}; \
static constexpr SortedArrayMap __map { __entries }; \
return __map.tryGet(__string); \
}
#define ENUM_DEFINE(__name) \
ENUM_DEFINE_TO_STRING(__name) \
ENUM_DEFINE_PRINT_INTERNAL(__name) \
ENUM_DEFINE_PARSE(__name)
ENUM_DEFINE(AddressSpace);
ENUM_DEFINE(AccessMode);
ENUM_DEFINE(TexelFormat);
ENUM_DEFINE(InterpolationType);
ENUM_DEFINE(InterpolationSampling);
ENUM_DEFINE(ShaderStage);
ENUM_DEFINE(SeverityControl);
ENUM_DEFINE(Builtin);
ENUM_DEFINE(Extension);
ENUM_DEFINE(LanguageFeature);
#undef ENUM_DEFINE
#undef ENUM_DEFINE_PRINT_INTERNAL
#undef ENUM_DEFINE_TO_STRING
#undef ENUM_DEFINE_TO_STRING_CASE
#undef ENUM_DEFINE_TO_STRING_CASE_
#undef EXPAND
#undef CONTINUATION
#undef RPAREN
#undef LPAREN
#undef COMMA
AccessMode defaultAccessModeForAddressSpace(AddressSpace addressSpace)
{
// Default access mode based on address space
// https://www.w3.org/TR/WGSL/#address-space
switch (addressSpace) {
case AddressSpace::Function:
case AddressSpace::Private:
case AddressSpace::Workgroup:
return AccessMode::ReadWrite;
case AddressSpace::Uniform:
case AddressSpace::Storage:
case AddressSpace::Handle:
return AccessMode::Read;
}
}
} // namespace WGSL
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