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// Copyright 2018 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "dawn_native/vulkan/ShaderModuleVk.h"
#include "dawn_native/SpirvValidation.h"
#include "dawn_native/TintUtils.h"
#include "dawn_native/vulkan/BindGroupLayoutVk.h"
#include "dawn_native/vulkan/DeviceVk.h"
#include "dawn_native/vulkan/FencedDeleter.h"
#include "dawn_native/vulkan/PipelineLayoutVk.h"
#include "dawn_native/vulkan/UtilsVulkan.h"
#include "dawn_native/vulkan/VulkanError.h"
#include <tint/tint.h>
#include <spirv-tools/libspirv.hpp>
namespace dawn_native { namespace vulkan {
ShaderModule::ConcurrentTransformedShaderModuleCache::ConcurrentTransformedShaderModuleCache(
Device* device)
: mDevice(device) {
}
ShaderModule::ConcurrentTransformedShaderModuleCache::
~ConcurrentTransformedShaderModuleCache() {
std::lock_guard<std::mutex> lock(mMutex);
for (const auto& iter : mTransformedShaderModuleCache) {
mDevice->GetFencedDeleter()->DeleteWhenUnused(iter.second);
}
}
VkShaderModule ShaderModule::ConcurrentTransformedShaderModuleCache::FindShaderModule(
const PipelineLayoutEntryPointPair& key) {
std::lock_guard<std::mutex> lock(mMutex);
auto iter = mTransformedShaderModuleCache.find(key);
if (iter != mTransformedShaderModuleCache.end()) {
auto cached = iter->second;
return cached;
}
return VK_NULL_HANDLE;
}
VkShaderModule ShaderModule::ConcurrentTransformedShaderModuleCache::AddOrGetCachedShaderModule(
const PipelineLayoutEntryPointPair& key,
VkShaderModule value) {
ASSERT(value != VK_NULL_HANDLE);
std::lock_guard<std::mutex> lock(mMutex);
auto iter = mTransformedShaderModuleCache.find(key);
if (iter == mTransformedShaderModuleCache.end()) {
mTransformedShaderModuleCache.emplace(key, value);
return value;
} else {
mDevice->GetFencedDeleter()->DeleteWhenUnused(value);
return iter->second;
}
}
// static
ResultOrError<Ref<ShaderModule>> ShaderModule::Create(Device* device,
const ShaderModuleDescriptor* descriptor,
ShaderModuleParseResult* parseResult) {
Ref<ShaderModule> module = AcquireRef(new ShaderModule(device, descriptor));
DAWN_TRY(module->Initialize(parseResult));
return module;
}
ShaderModule::ShaderModule(Device* device, const ShaderModuleDescriptor* descriptor)
: ShaderModuleBase(device, descriptor),
mTransformedShaderModuleCache(
std::make_unique<ConcurrentTransformedShaderModuleCache>(device)) {
}
MaybeError ShaderModule::Initialize(ShaderModuleParseResult* parseResult) {
if (GetDevice()->IsRobustnessEnabled()) {
ScopedTintICEHandler scopedICEHandler(GetDevice());
tint::transform::Robustness robustness;
tint::transform::DataMap transformInputs;
tint::Program program;
DAWN_TRY_ASSIGN(program, RunTransforms(&robustness, parseResult->tintProgram.get(),
transformInputs, nullptr, nullptr));
// Rather than use a new ParseResult object, we just reuse the original parseResult
parseResult->tintProgram = std::make_unique<tint::Program>(std::move(program));
}
return InitializeBase(parseResult);
}
void ShaderModule::DestroyImpl() {
ShaderModuleBase::DestroyImpl();
// Remove reference to internal cache to trigger cleanup.
mTransformedShaderModuleCache = nullptr;
}
ShaderModule::~ShaderModule() = default;
ResultOrError<VkShaderModule> ShaderModule::GetTransformedModuleHandle(
const char* entryPointName,
PipelineLayout* layout) {
// If the shader was destroyed, we should never call this function.
ASSERT(IsAlive());
ScopedTintICEHandler scopedICEHandler(GetDevice());
auto cacheKey = std::make_pair(layout, entryPointName);
VkShaderModule cachedShaderModule =
mTransformedShaderModuleCache->FindShaderModule(cacheKey);
if (cachedShaderModule != VK_NULL_HANDLE) {
return cachedShaderModule;
}
// Creation of VkShaderModule is deferred to this point when using tint generator
// Remap BindingNumber to BindingIndex in WGSL shader
using BindingRemapper = tint::transform::BindingRemapper;
using BindingPoint = tint::transform::BindingPoint;
BindingRemapper::BindingPoints bindingPoints;
BindingRemapper::AccessControls accessControls;
const BindingInfoArray& moduleBindingInfo = GetEntryPoint(entryPointName).bindings;
for (BindGroupIndex group : IterateBitSet(layout->GetBindGroupLayoutsMask())) {
const BindGroupLayout* bgl = ToBackend(layout->GetBindGroupLayout(group));
const auto& groupBindingInfo = moduleBindingInfo[group];
for (const auto& it : groupBindingInfo) {
BindingNumber binding = it.first;
BindingIndex bindingIndex = bgl->GetBindingIndex(binding);
BindingPoint srcBindingPoint{static_cast<uint32_t>(group),
static_cast<uint32_t>(binding)};
BindingPoint dstBindingPoint{static_cast<uint32_t>(group),
static_cast<uint32_t>(bindingIndex)};
if (srcBindingPoint != dstBindingPoint) {
bindingPoints.emplace(srcBindingPoint, dstBindingPoint);
}
}
}
tint::transform::Manager transformManager;
transformManager.append(std::make_unique<tint::transform::BindingRemapper>());
// Many Vulkan drivers can't handle multi-entrypoint shader modules.
transformManager.append(std::make_unique<tint::transform::SingleEntryPoint>());
tint::transform::DataMap transformInputs;
transformInputs.Add<BindingRemapper::Remappings>(std::move(bindingPoints),
std::move(accessControls),
/* mayCollide */ false);
transformInputs.Add<tint::transform::SingleEntryPoint::Config>(entryPointName);
tint::Program program;
DAWN_TRY_ASSIGN(program, RunTransforms(&transformManager, GetTintProgram(), transformInputs,
nullptr, nullptr));
tint::writer::spirv::Options options;
options.emit_vertex_point_size = true;
options.disable_workgroup_init = GetDevice()->IsToggleEnabled(Toggle::DisableWorkgroupInit);
auto result = tint::writer::spirv::Generate(&program, options);
DAWN_INVALID_IF(!result.success, "An error occured while generating SPIR-V: %s.",
result.error);
std::vector<uint32_t> spirv = std::move(result.spirv);
DAWN_TRY(
ValidateSpirv(GetDevice(), spirv, GetDevice()->IsToggleEnabled(Toggle::DumpShaders)));
VkShaderModuleCreateInfo createInfo;
createInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
createInfo.pNext = nullptr;
createInfo.flags = 0;
createInfo.codeSize = spirv.size() * sizeof(uint32_t);
createInfo.pCode = spirv.data();
Device* device = ToBackend(GetDevice());
VkShaderModule newHandle = VK_NULL_HANDLE;
DAWN_TRY(CheckVkSuccess(
device->fn.CreateShaderModule(device->GetVkDevice(), &createInfo, nullptr, &*newHandle),
"CreateShaderModule"));
if (newHandle != VK_NULL_HANDLE) {
newHandle =
mTransformedShaderModuleCache->AddOrGetCachedShaderModule(cacheKey, newHandle);
}
SetDebugName(ToBackend(GetDevice()), VK_OBJECT_TYPE_SHADER_MODULE,
reinterpret_cast<uint64_t&>(newHandle), "Dawn_ShaderModule", GetLabel());
return newHandle;
}
}} // namespace dawn_native::vulkan