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/*
* 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 "WHLSLMetalCodeGenerator.h"
#if ENABLE(WEBGPU)
#include "WHLSLFunctionWriter.h"
#include "WHLSLTypeNamer.h"
#include <wtf/DataLog.h>
#include <wtf/text/StringBuilder.h>
namespace WebCore {
namespace WHLSL {
namespace Metal {
static constexpr bool dumpMetalCode = false;
static StringView metalCodePrologue()
{
return StringView {
"#include <metal_stdlib>\n"
"#include <metal_atomic>\n"
"#include <metal_math>\n"
"#include <metal_relational>\n"
"#include <metal_compute>\n"
"#include <metal_texture>\n"
"\n"
"using namespace metal;\n"
"\n"
"template <typename T, int Cols, int Rows>\n"
"struct WSLMatrix\n"
"{\n"
" vec<T, Rows> columns[Cols];\n"
" private:\n"
" public:\n"
" inline WSLMatrix() thread = default;\n"
" inline WSLMatrix() constant = default;\n"
" inline WSLMatrix(const thread WSLMatrix<T, Cols, Rows> &that) thread = default;\n"
" inline WSLMatrix(const device WSLMatrix<T, Cols, Rows> &that) thread = default;\n"
" inline WSLMatrix(const constant WSLMatrix<T, Cols, Rows> &that) thread = default;\n"
" inline WSLMatrix(const threadgroup WSLMatrix<T, Cols, Rows> &that) thread = default;\n"
" inline WSLMatrix(const thread WSLMatrix<T, Cols, Rows> &that) constant = default;\n"
" inline WSLMatrix(const device WSLMatrix<T, Cols, Rows> &that) constant = default;\n"
" inline WSLMatrix(const constant WSLMatrix<T, Cols, Rows> &that) constant = default;\n"
" inline WSLMatrix(const threadgroup WSLMatrix<T, Cols, Rows> &that) constant = default;\n"
" public:\n"
" inline thread vec<T, Rows> &operator[](int r) thread\n"
" {\n"
" return columns[r];\n"
" }\n"
" inline device vec<T, Rows> &operator[](int r) device\n"
" {\n"
" return columns[r];\n"
" }\n"
" inline threadgroup vec<T, Rows> &operator[](int r) threadgroup\n"
" {\n"
" return columns[r];\n"
" }\n"
" inline const thread vec<T, Rows> &operator[](int r) const thread\n"
" {\n"
" return columns[r];\n"
" }\n"
" inline const device vec<T, Rows> &operator[](int r) const device\n"
" {\n"
" return columns[r];\n"
" }\n"
" inline const constant vec<T, Rows> &operator[](int r) const constant\n"
" {\n"
" return columns[r];\n"
" }\n"
" inline const threadgroup vec<T, Rows> &operator[](int r) const threadgroup\n"
" {\n"
" return columns[r];\n"
" }\n"
"};\n"
};
}
static void dumpMetalCodeIfNeeded(StringBuilder& stringBuilder)
{
if (dumpMetalCode) {
dataLogLn("Generated Metal code: ");
dataLogLn(stringBuilder.toString());
}
}
RenderMetalCode generateMetalCode(Program& program, MatchedRenderSemantics&& matchedSemantics, Layout& layout)
{
StringBuilder stringBuilder;
stringBuilder.append(metalCodePrologue());
TypeNamer typeNamer(program);
typeNamer.emitMetalTypes(stringBuilder);
auto metalFunctionEntryPoints = Metal::emitMetalFunctions(stringBuilder, program, typeNamer, WTFMove(matchedSemantics), layout);
dumpMetalCodeIfNeeded(stringBuilder);
return { WTFMove(stringBuilder), WTFMove(metalFunctionEntryPoints.mangledVertexEntryPointName), WTFMove(metalFunctionEntryPoints.mangledFragmentEntryPointName) };
}
ComputeMetalCode generateMetalCode(Program& program, MatchedComputeSemantics&& matchedSemantics, Layout& layout)
{
StringBuilder stringBuilder;
stringBuilder.append(metalCodePrologue());
TypeNamer typeNamer(program);
typeNamer.emitMetalTypes(stringBuilder);
auto metalFunctionEntryPoints = Metal::emitMetalFunctions(stringBuilder, program, typeNamer, WTFMove(matchedSemantics), layout);
dumpMetalCodeIfNeeded(stringBuilder);
return { WTFMove(stringBuilder), WTFMove(metalFunctionEntryPoints.mangledEntryPointName) };
}
}
}
}
#endif