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/*
* Copyright (c) 2022 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.
*/
#pragma once
#include "WGSLShaderModule.h"
#include <JavaScriptCore/RegularExpression.h>
#include <wtf/FileSystem.h>
#include <wtf/text/MakeString.h>
#ifdef __OBJC__
#import <Metal/Metal.h>
#endif
#define EXPECT_SHADER(shader) \
do { \
if (!shader.has_value()) { \
::TestWGSLAPI::logCompilationError(shader.error()); \
return; \
} \
} while (false)
namespace WGSL {
struct FailedCheck;
}
namespace TestWGSLAPI {
void logCompilationError(WGSL::FailedCheck& error);
inline String fn(const String& test)
{
return makeString("@compute @workgroup_size(1) fn test() {\n"_s, test, "\n}"_s);
}
inline String enableF16(const String& test)
{
return makeString("enable f16;\n\n"_s, test);
}
#ifdef __OBJC__
inline String file(const String& filePath)
{
static NSString *shadersPath = nil;
static std::once_flag onceFlag;
std::call_once(onceFlag, [&] {
shadersPath = [NSBundle.mainBundle.resourcePath stringByAppendingPathComponent:@"shaders"];
});
auto cfFilePath = filePath.createCFString();
EXPECT_TRUE(cfFilePath);
auto path = [shadersPath stringByAppendingPathComponent:(__bridge NSString *)cfFilePath.get()];
auto readResult = FileSystem::readEntireFile(path);
EXPECT_TRUE(readResult.has_value());
return String::fromUTF8WithLatin1Fallback(readResult->span());
}
#endif
using Check = Function<unsigned(const String&, unsigned offset)>;
inline Check checkLiteral(const String& pattern)
{
return [&](const String& msl, unsigned offset) -> unsigned {
auto result = msl.find(pattern, offset);
EXPECT_TRUE(result != notFound);
return result;
};
}
inline Check checkNotLiteral(const String& pattern)
{
return [&](const String& msl, unsigned offset) -> unsigned {
auto result = msl.find(pattern, offset);
EXPECT_TRUE(result == notFound);
return offset;
};
}
inline Check checkNot(const String& pattern)
{
return [&](const String& msl, unsigned offset) -> unsigned {
JSC::Yarr::RegularExpression test(pattern);
auto result = test.match(msl, offset);
EXPECT_EQ(result, -1);
return offset;
};
}
inline Check check(const String& pattern)
{
return [&](const String& msl, unsigned offset) -> unsigned {
JSC::Yarr::RegularExpression test(pattern);
auto result = test.match(msl, offset);
EXPECT_NE(result, -1);
return result;
};
}
inline Variant<WGSL::SuccessfulCheck, WGSL::FailedCheck> staticCheck(const String& wgsl)
{
return WGSL::staticCheck(wgsl, std::nullopt, { 8 });
}
inline Variant<WGSL::PrepareResult, WGSL::Error> prepare(const WGSL::SuccessfulCheck& staticCheckResult)
{
auto& shaderModule = staticCheckResult.ast;
HashMap<String, WGSL::PipelineLayout*> pipelineLayouts;
for (auto& entryPoint : shaderModule->callGraph().entrypoints())
pipelineLayouts.add(entryPoint.originalName, nullptr);
return WGSL::prepare(shaderModule, pipelineLayouts);
}
inline Variant<String, WGSL::Error> generate(const WGSL::SuccessfulCheck& staticCheckResult, WGSL::PrepareResult& prepareResult)
{
auto& shaderModule = staticCheckResult.ast;
HashMap<String, WGSL::ConstantValue> constantValues;
for (auto& entryPoint : shaderModule->callGraph().entrypoints()) {
const auto& entryPointInformation = prepareResult.entryPoints.get(entryPoint.originalName);
for (const auto& [originalName, constant] : entryPointInformation.specializationConstants) {
EXPECT_TRUE(constant.defaultValue);
auto defaultValue = WGSL::evaluate(*constant.defaultValue, constantValues);
EXPECT_TRUE(defaultValue.has_value());
constantValues.add(constant.mangledName, *defaultValue);
}
}
return WGSL::generate(shaderModule, prepareResult, constantValues, { });
}
#ifdef __OBJC__
inline Variant<id<MTLLibrary>, NSError *> metalCompile(const String& msl)
{
auto device = MTLCreateSystemDefaultDevice();
auto options = [MTLCompileOptions new];
options.preprocessorMacros = @{ @"__wgslMetalAppleGPUFamily" : [NSString stringWithFormat:@"%u", 8] };
NSError *error = nil;
id<MTLLibrary> library = [device newLibraryWithSource:msl.createNSString().get() options:options error:&error];
if (error != nil)
return { error };
return { library };
}
#endif
template<typename... Checks>
inline void performChecks(const String& input, Checks&&... checks)
{
unsigned offset = 0;
for (const auto& check : std::initializer_list<Check> { std::forward<Checks>(checks)... })
offset = check(input, offset);
}
} // namespace TestWGSLAPI
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