blob: 7b73ccfdb1d434499110f91d704cdb8926deb512 [file] [log] [blame]
// Copyright 2017 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/d3d12/DeviceD3D12.h"
#include "common/Assert.h"
#include "dawn_native/BackendConnection.h"
#include "dawn_native/ErrorData.h"
#include "dawn_native/Instance.h"
#include "dawn_native/d3d12/AdapterD3D12.h"
#include "dawn_native/d3d12/BackendD3D12.h"
#include "dawn_native/d3d12/BindGroupD3D12.h"
#include "dawn_native/d3d12/BindGroupLayoutD3D12.h"
#include "dawn_native/d3d12/BufferD3D12.h"
#include "dawn_native/d3d12/CommandAllocatorManager.h"
#include "dawn_native/d3d12/CommandBufferD3D12.h"
#include "dawn_native/d3d12/ComputePipelineD3D12.h"
#include "dawn_native/d3d12/D3D12Error.h"
#include "dawn_native/d3d12/PipelineLayoutD3D12.h"
#include "dawn_native/d3d12/PlatformFunctions.h"
#include "dawn_native/d3d12/QuerySetD3D12.h"
#include "dawn_native/d3d12/QueueD3D12.h"
#include "dawn_native/d3d12/RenderPipelineD3D12.h"
#include "dawn_native/d3d12/ResidencyManagerD3D12.h"
#include "dawn_native/d3d12/ResourceAllocatorManagerD3D12.h"
#include "dawn_native/d3d12/SamplerD3D12.h"
#include "dawn_native/d3d12/SamplerHeapCacheD3D12.h"
#include "dawn_native/d3d12/ShaderModuleD3D12.h"
#include "dawn_native/d3d12/ShaderVisibleDescriptorAllocatorD3D12.h"
#include "dawn_native/d3d12/StagingBufferD3D12.h"
#include "dawn_native/d3d12/StagingDescriptorAllocatorD3D12.h"
#include "dawn_native/d3d12/SwapChainD3D12.h"
#include "dawn_native/d3d12/TextureD3D12.h"
#include <sstream>
namespace dawn_native { namespace d3d12 {
// TODO(dawn:155): Figure out these values.
static constexpr uint16_t kShaderVisibleDescriptorHeapSize = 1024;
static constexpr uint8_t kAttachmentDescriptorHeapSize = 64;
static constexpr uint64_t kMaxDebugMessagesToPrint = 5;
// static
ResultOrError<Device*> Device::Create(Adapter* adapter, const DeviceDescriptor* descriptor) {
Ref<Device> device = AcquireRef(new Device(adapter, descriptor));
DAWN_TRY(device->Initialize());
return device.Detach();
}
MaybeError Device::Initialize() {
InitTogglesFromDriver();
mD3d12Device = ToBackend(GetAdapter())->GetDevice();
ASSERT(mD3d12Device != nullptr);
// Create device-global objects
D3D12_COMMAND_QUEUE_DESC queueDesc = {};
queueDesc.Flags = D3D12_COMMAND_QUEUE_FLAG_NONE;
queueDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
DAWN_TRY(
CheckHRESULT(mD3d12Device->CreateCommandQueue(&queueDesc, IID_PPV_ARGS(&mCommandQueue)),
"D3D12 create command queue"));
// If PIX is not attached, the QueryInterface fails. Hence, no need to check the return
// value.
mCommandQueue.As(&mD3d12SharingContract);
DAWN_TRY(
CheckHRESULT(mD3d12Device->CreateFence(GetLastSubmittedCommandSerial(),
D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(&mFence)),
"D3D12 create fence"));
mFenceEvent = CreateEvent(nullptr, FALSE, FALSE, nullptr);
ASSERT(mFenceEvent != nullptr);
// Initialize backend services
mCommandAllocatorManager = std::make_unique<CommandAllocatorManager>(this);
// Zero sized allocator is never requested and does not need to exist.
for (uint32_t countIndex = 0; countIndex < kNumViewDescriptorAllocators; countIndex++) {
mViewAllocators[countIndex + 1] = std::make_unique<StagingDescriptorAllocator>(
this, 1u << countIndex, kShaderVisibleDescriptorHeapSize,
D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV);
}
for (uint32_t countIndex = 0; countIndex < kNumSamplerDescriptorAllocators; countIndex++) {
mSamplerAllocators[countIndex + 1] = std::make_unique<StagingDescriptorAllocator>(
this, 1u << countIndex, kShaderVisibleDescriptorHeapSize,
D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER);
}
mRenderTargetViewAllocator = std::make_unique<StagingDescriptorAllocator>(
this, 1, kAttachmentDescriptorHeapSize, D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
mDepthStencilViewAllocator = std::make_unique<StagingDescriptorAllocator>(
this, 1, kAttachmentDescriptorHeapSize, D3D12_DESCRIPTOR_HEAP_TYPE_DSV);
mSamplerHeapCache = std::make_unique<SamplerHeapCache>(this);
mResidencyManager = std::make_unique<ResidencyManager>(this);
mResourceAllocatorManager = std::make_unique<ResourceAllocatorManager>(this);
// ShaderVisibleDescriptorAllocators use the ResidencyManager and must be initialized after.
DAWN_TRY_ASSIGN(
mSamplerShaderVisibleDescriptorAllocator,
ShaderVisibleDescriptorAllocator::Create(this, D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER));
DAWN_TRY_ASSIGN(
mViewShaderVisibleDescriptorAllocator,
ShaderVisibleDescriptorAllocator::Create(this, D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV));
// Initialize indirect commands
D3D12_INDIRECT_ARGUMENT_DESC argumentDesc = {};
argumentDesc.Type = D3D12_INDIRECT_ARGUMENT_TYPE_DISPATCH;
D3D12_COMMAND_SIGNATURE_DESC programDesc = {};
programDesc.ByteStride = 3 * sizeof(uint32_t);
programDesc.NumArgumentDescs = 1;
programDesc.pArgumentDescs = &argumentDesc;
GetD3D12Device()->CreateCommandSignature(&programDesc, NULL,
IID_PPV_ARGS(&mDispatchIndirectSignature));
argumentDesc.Type = D3D12_INDIRECT_ARGUMENT_TYPE_DRAW;
programDesc.ByteStride = 4 * sizeof(uint32_t);
GetD3D12Device()->CreateCommandSignature(&programDesc, NULL,
IID_PPV_ARGS(&mDrawIndirectSignature));
argumentDesc.Type = D3D12_INDIRECT_ARGUMENT_TYPE_DRAW_INDEXED;
programDesc.ByteStride = 5 * sizeof(uint32_t);
GetD3D12Device()->CreateCommandSignature(&programDesc, NULL,
IID_PPV_ARGS(&mDrawIndexedIndirectSignature));
DAWN_TRY(DeviceBase::Initialize(new Queue(this)));
// Device shouldn't be used until after DeviceBase::Initialize so we must wait until after
// device initialization to call NextSerial
DAWN_TRY(NextSerial());
return {};
}
Device::~Device() {
ShutDownBase();
}
ID3D12Device* Device::GetD3D12Device() const {
return mD3d12Device.Get();
}
ComPtr<ID3D12CommandQueue> Device::GetCommandQueue() const {
return mCommandQueue;
}
ID3D12SharingContract* Device::GetSharingContract() const {
return mD3d12SharingContract.Get();
}
ComPtr<ID3D12CommandSignature> Device::GetDispatchIndirectSignature() const {
return mDispatchIndirectSignature;
}
ComPtr<ID3D12CommandSignature> Device::GetDrawIndirectSignature() const {
return mDrawIndirectSignature;
}
ComPtr<ID3D12CommandSignature> Device::GetDrawIndexedIndirectSignature() const {
return mDrawIndexedIndirectSignature;
}
ComPtr<IDXGIFactory4> Device::GetFactory() const {
return ToBackend(GetAdapter())->GetBackend()->GetFactory();
}
ResultOrError<IDxcLibrary*> Device::GetOrCreateDxcLibrary() const {
return ToBackend(GetAdapter())->GetBackend()->GetOrCreateDxcLibrary();
}
ResultOrError<IDxcCompiler*> Device::GetOrCreateDxcCompiler() const {
return ToBackend(GetAdapter())->GetBackend()->GetOrCreateDxcCompiler();
}
const PlatformFunctions* Device::GetFunctions() const {
return ToBackend(GetAdapter())->GetBackend()->GetFunctions();
}
CommandAllocatorManager* Device::GetCommandAllocatorManager() const {
return mCommandAllocatorManager.get();
}
ResidencyManager* Device::GetResidencyManager() const {
return mResidencyManager.get();
}
ResultOrError<CommandRecordingContext*> Device::GetPendingCommandContext() {
// Callers of GetPendingCommandList do so to record commands. Only reserve a command
// allocator when it is needed so we don't submit empty command lists
if (!mPendingCommands.IsOpen()) {
DAWN_TRY(mPendingCommands.Open(mD3d12Device.Get(), mCommandAllocatorManager.get()));
}
return &mPendingCommands;
}
MaybeError Device::TickImpl() {
// Perform cleanup operations to free unused objects
Serial completedSerial = GetCompletedCommandSerial();
mResourceAllocatorManager->Tick(completedSerial);
DAWN_TRY(mCommandAllocatorManager->Tick(completedSerial));
mViewShaderVisibleDescriptorAllocator->Tick(completedSerial);
mSamplerShaderVisibleDescriptorAllocator->Tick(completedSerial);
mRenderTargetViewAllocator->Tick(completedSerial);
mDepthStencilViewAllocator->Tick(completedSerial);
mUsedComObjectRefs.ClearUpTo(completedSerial);
DAWN_TRY(ExecutePendingCommandContext());
DAWN_TRY(NextSerial());
DAWN_TRY(CheckDebugLayerAndGenerateErrors());
return {};
}
MaybeError Device::NextSerial() {
IncrementLastSubmittedCommandSerial();
return CheckHRESULT(mCommandQueue->Signal(mFence.Get(), GetLastSubmittedCommandSerial()),
"D3D12 command queue signal fence");
}
MaybeError Device::WaitForSerial(uint64_t serial) {
CheckPassedSerials();
if (GetCompletedCommandSerial() < serial) {
DAWN_TRY(CheckHRESULT(mFence->SetEventOnCompletion(serial, mFenceEvent),
"D3D12 set event on completion"));
WaitForSingleObject(mFenceEvent, INFINITE);
CheckPassedSerials();
}
return {};
}
Serial Device::CheckAndUpdateCompletedSerials() {
return mFence->GetCompletedValue();
}
void Device::ReferenceUntilUnused(ComPtr<IUnknown> object) {
mUsedComObjectRefs.Enqueue(object, GetPendingCommandSerial());
}
MaybeError Device::ExecutePendingCommandContext() {
return mPendingCommands.ExecuteCommandList(this);
}
ResultOrError<BindGroupBase*> Device::CreateBindGroupImpl(
const BindGroupDescriptor* descriptor) {
return BindGroup::Create(this, descriptor);
}
ResultOrError<BindGroupLayoutBase*> Device::CreateBindGroupLayoutImpl(
const BindGroupLayoutDescriptor* descriptor) {
return new BindGroupLayout(this, descriptor);
}
ResultOrError<Ref<BufferBase>> Device::CreateBufferImpl(const BufferDescriptor* descriptor) {
Ref<Buffer> buffer = AcquireRef(new Buffer(this, descriptor));
DAWN_TRY(buffer->Initialize());
return std::move(buffer);
}
CommandBufferBase* Device::CreateCommandBuffer(CommandEncoder* encoder,
const CommandBufferDescriptor* descriptor) {
return new CommandBuffer(encoder, descriptor);
}
ResultOrError<ComputePipelineBase*> Device::CreateComputePipelineImpl(
const ComputePipelineDescriptor* descriptor) {
return ComputePipeline::Create(this, descriptor);
}
ResultOrError<PipelineLayoutBase*> Device::CreatePipelineLayoutImpl(
const PipelineLayoutDescriptor* descriptor) {
return PipelineLayout::Create(this, descriptor);
}
ResultOrError<QuerySetBase*> Device::CreateQuerySetImpl(const QuerySetDescriptor* descriptor) {
return QuerySet::Create(this, descriptor);
}
ResultOrError<RenderPipelineBase*> Device::CreateRenderPipelineImpl(
const RenderPipelineDescriptor* descriptor) {
return RenderPipeline::Create(this, descriptor);
}
ResultOrError<SamplerBase*> Device::CreateSamplerImpl(const SamplerDescriptor* descriptor) {
return new Sampler(this, descriptor);
}
ResultOrError<ShaderModuleBase*> Device::CreateShaderModuleImpl(
const ShaderModuleDescriptor* descriptor) {
return ShaderModule::Create(this, descriptor);
}
ResultOrError<SwapChainBase*> Device::CreateSwapChainImpl(
const SwapChainDescriptor* descriptor) {
return new SwapChain(this, descriptor);
}
ResultOrError<NewSwapChainBase*> Device::CreateSwapChainImpl(
Surface* surface,
NewSwapChainBase* previousSwapChain,
const SwapChainDescriptor* descriptor) {
return DAWN_VALIDATION_ERROR("New swapchains not implemented.");
}
ResultOrError<Ref<TextureBase>> Device::CreateTextureImpl(const TextureDescriptor* descriptor) {
return Texture::Create(this, descriptor);
}
ResultOrError<TextureViewBase*> Device::CreateTextureViewImpl(
TextureBase* texture,
const TextureViewDescriptor* descriptor) {
return new TextureView(texture, descriptor);
}
ResultOrError<std::unique_ptr<StagingBufferBase>> Device::CreateStagingBuffer(size_t size) {
std::unique_ptr<StagingBufferBase> stagingBuffer =
std::make_unique<StagingBuffer>(size, this);
DAWN_TRY(stagingBuffer->Initialize());
return std::move(stagingBuffer);
}
MaybeError Device::CopyFromStagingToBuffer(StagingBufferBase* source,
uint64_t sourceOffset,
BufferBase* destination,
uint64_t destinationOffset,
uint64_t size) {
CommandRecordingContext* commandRecordingContext;
DAWN_TRY_ASSIGN(commandRecordingContext, GetPendingCommandContext());
Buffer* dstBuffer = ToBackend(destination);
DAWN_TRY(dstBuffer->EnsureDataInitializedAsDestination(commandRecordingContext,
destinationOffset, size));
CopyFromStagingToBufferImpl(commandRecordingContext, source, sourceOffset, destination,
destinationOffset, size);
return {};
}
void Device::CopyFromStagingToBufferImpl(CommandRecordingContext* commandContext,
StagingBufferBase* source,
uint64_t sourceOffset,
BufferBase* destination,
uint64_t destinationOffset,
uint64_t size) {
ASSERT(commandContext != nullptr);
Buffer* dstBuffer = ToBackend(destination);
StagingBuffer* srcBuffer = ToBackend(source);
dstBuffer->TrackUsageAndTransitionNow(commandContext, wgpu::BufferUsage::CopyDst);
commandContext->GetCommandList()->CopyBufferRegion(
dstBuffer->GetD3D12Resource(), destinationOffset, srcBuffer->GetResource(),
sourceOffset, size);
}
void Device::DeallocateMemory(ResourceHeapAllocation& allocation) {
mResourceAllocatorManager->DeallocateMemory(allocation);
}
ResultOrError<ResourceHeapAllocation> Device::AllocateMemory(
D3D12_HEAP_TYPE heapType,
const D3D12_RESOURCE_DESC& resourceDescriptor,
D3D12_RESOURCE_STATES initialUsage) {
return mResourceAllocatorManager->AllocateMemory(heapType, resourceDescriptor,
initialUsage);
}
Ref<TextureBase> Device::WrapSharedHandle(const ExternalImageDescriptor* descriptor,
HANDLE sharedHandle,
uint64_t acquireMutexKey,
bool isSwapChainTexture) {
Ref<TextureBase> dawnTexture;
if (ConsumedError(Texture::Create(this, descriptor, sharedHandle, acquireMutexKey,
isSwapChainTexture),
&dawnTexture))
return nullptr;
return dawnTexture;
}
// We use IDXGIKeyedMutexes to synchronize access between D3D11 and D3D12. D3D11/12 fences
// are a viable alternative but are, unfortunately, not available on all versions of Windows
// 10. Since D3D12 does not directly support keyed mutexes, we need to wrap the D3D12
// resource using 11on12 and QueryInterface the D3D11 representation for the keyed mutex.
ResultOrError<ComPtr<IDXGIKeyedMutex>> Device::CreateKeyedMutexForTexture(
ID3D12Resource* d3d12Resource) {
if (mD3d11On12Device == nullptr) {
ComPtr<ID3D11Device> d3d11Device;
ComPtr<ID3D11DeviceContext> d3d11DeviceContext;
D3D_FEATURE_LEVEL d3dFeatureLevel;
IUnknown* const iUnknownQueue = mCommandQueue.Get();
DAWN_TRY(CheckHRESULT(GetFunctions()->d3d11on12CreateDevice(
mD3d12Device.Get(), 0, nullptr, 0, &iUnknownQueue, 1, 1,
&d3d11Device, &d3d11DeviceContext, &d3dFeatureLevel),
"D3D12 11on12 device create"));
ComPtr<ID3D11On12Device> d3d11on12Device;
DAWN_TRY(CheckHRESULT(d3d11Device.As(&d3d11on12Device),
"D3D12 QueryInterface ID3D11Device to ID3D11On12Device"));
ComPtr<ID3D11DeviceContext2> d3d11DeviceContext2;
DAWN_TRY(
CheckHRESULT(d3d11DeviceContext.As(&d3d11DeviceContext2),
"D3D12 QueryInterface ID3D11DeviceContext to ID3D11DeviceContext2"));
mD3d11On12DeviceContext = std::move(d3d11DeviceContext2);
mD3d11On12Device = std::move(d3d11on12Device);
}
ComPtr<ID3D11Texture2D> d3d11Texture;
D3D11_RESOURCE_FLAGS resourceFlags;
resourceFlags.BindFlags = 0;
resourceFlags.MiscFlags = D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX;
resourceFlags.CPUAccessFlags = 0;
resourceFlags.StructureByteStride = 0;
DAWN_TRY(CheckHRESULT(mD3d11On12Device->CreateWrappedResource(
d3d12Resource, &resourceFlags, D3D12_RESOURCE_STATE_COMMON,
D3D12_RESOURCE_STATE_COMMON, IID_PPV_ARGS(&d3d11Texture)),
"D3D12 creating a wrapped resource"));
ComPtr<IDXGIKeyedMutex> dxgiKeyedMutex;
DAWN_TRY(CheckHRESULT(d3d11Texture.As(&dxgiKeyedMutex),
"D3D12 QueryInterface ID3D11Texture2D to IDXGIKeyedMutex"));
return std::move(dxgiKeyedMutex);
}
void Device::ReleaseKeyedMutexForTexture(ComPtr<IDXGIKeyedMutex> dxgiKeyedMutex) {
ComPtr<ID3D11Resource> d3d11Resource;
HRESULT hr = dxgiKeyedMutex.As(&d3d11Resource);
if (FAILED(hr)) {
return;
}
ID3D11Resource* d3d11ResourceRaw = d3d11Resource.Get();
mD3d11On12Device->ReleaseWrappedResources(&d3d11ResourceRaw, 1);
d3d11Resource.Reset();
dxgiKeyedMutex.Reset();
// 11on12 has a bug where D3D12 resources used only for keyed shared mutexes
// are not released until work is submitted to the device context and flushed.
// The most minimal work we can get away with is issuing a TiledResourceBarrier.
// ID3D11DeviceContext2 is available in Win8.1 and above. This suffices for a
// D3D12 backend since both D3D12 and 11on12 first appeared in Windows 10.
mD3d11On12DeviceContext->TiledResourceBarrier(nullptr, nullptr);
mD3d11On12DeviceContext->Flush();
}
const D3D12DeviceInfo& Device::GetDeviceInfo() const {
return ToBackend(GetAdapter())->GetDeviceInfo();
}
void Device::InitTogglesFromDriver() {
const bool useResourceHeapTier2 = (GetDeviceInfo().resourceHeapTier >= 2);
SetToggle(Toggle::UseD3D12ResourceHeapTier2, useResourceHeapTier2);
SetToggle(Toggle::UseD3D12RenderPass, GetDeviceInfo().supportsRenderPass);
SetToggle(Toggle::UseD3D12ResidencyManagement, true);
SetToggle(Toggle::UseDXC, false);
// By default use the maximum shader-visible heap size allowed.
SetToggle(Toggle::UseD3D12SmallShaderVisibleHeapForTesting, false);
}
MaybeError Device::WaitForIdleForDestruction() {
// Immediately forget about all pending commands
mPendingCommands.Release();
DAWN_TRY(NextSerial());
// Wait for all in-flight commands to finish executing
DAWN_TRY(WaitForSerial(GetLastSubmittedCommandSerial()));
return {};
}
MaybeError Device::CheckDebugLayerAndGenerateErrors() {
if (!GetAdapter()->GetInstance()->IsBackendValidationEnabled()) {
return {};
}
ComPtr<ID3D12InfoQueue> infoQueue;
ASSERT_SUCCESS(mD3d12Device.As(&infoQueue));
uint64_t totalErrors = infoQueue->GetNumStoredMessagesAllowedByRetrievalFilter();
// Check if any errors have occurred otherwise we would be creating an empty error. Note
// that we use GetNumStoredMessagesAllowedByRetrievalFilter instead of GetNumStoredMessages
// because we only convert WARNINGS or higher messages to dawn errors.
if (totalErrors == 0) {
return {};
}
std::ostringstream messages;
uint64_t errorsToPrint = std::min(kMaxDebugMessagesToPrint, totalErrors);
for (uint64_t i = 0; i < errorsToPrint; ++i) {
SIZE_T messageLength = 0;
HRESULT hr = infoQueue->GetMessage(i, nullptr, &messageLength);
if (FAILED(hr)) {
messages << " ID3D12InfoQueue::GetMessage failed with " << hr << '\n';
continue;
}
std::unique_ptr<uint8_t[]> messageData(new uint8_t[messageLength]);
D3D12_MESSAGE* message = reinterpret_cast<D3D12_MESSAGE*>(messageData.get());
hr = infoQueue->GetMessage(i, message, &messageLength);
if (FAILED(hr)) {
messages << " ID3D12InfoQueue::GetMessage failed with " << hr << '\n';
continue;
}
messages << message->pDescription << " (" << message->ID << ")\n";
}
if (errorsToPrint < totalErrors) {
messages << (totalErrors - errorsToPrint) << " messages silenced\n";
}
// We only print up to the first kMaxDebugMessagesToPrint errors
infoQueue->ClearStoredMessages();
return DAWN_INTERNAL_ERROR(messages.str());
}
void Device::ShutDownImpl() {
ASSERT(GetState() == State::Disconnected);
// Immediately forget about all pending commands for the case where device is lost on its
// own and WaitForIdleForDestruction isn't called.
mPendingCommands.Release();
if (mFenceEvent != nullptr) {
::CloseHandle(mFenceEvent);
}
// We need to handle clearing up com object refs that were enqeued after TickImpl
mUsedComObjectRefs.ClearUpTo(GetCompletedCommandSerial());
ASSERT(mUsedComObjectRefs.Empty());
ASSERT(!mPendingCommands.IsOpen());
}
ShaderVisibleDescriptorAllocator* Device::GetViewShaderVisibleDescriptorAllocator() const {
return mViewShaderVisibleDescriptorAllocator.get();
}
ShaderVisibleDescriptorAllocator* Device::GetSamplerShaderVisibleDescriptorAllocator() const {
return mSamplerShaderVisibleDescriptorAllocator.get();
}
StagingDescriptorAllocator* Device::GetViewStagingDescriptorAllocator(
uint32_t descriptorCount) const {
ASSERT(descriptorCount <= kMaxViewDescriptorsPerBindGroup);
// This is Log2 of the next power of two, plus 1.
uint32_t allocatorIndex = descriptorCount == 0 ? 0 : Log2Ceil(descriptorCount) + 1;
return mViewAllocators[allocatorIndex].get();
}
StagingDescriptorAllocator* Device::GetSamplerStagingDescriptorAllocator(
uint32_t descriptorCount) const {
ASSERT(descriptorCount <= kMaxSamplerDescriptorsPerBindGroup);
// This is Log2 of the next power of two, plus 1.
uint32_t allocatorIndex = descriptorCount == 0 ? 0 : Log2Ceil(descriptorCount) + 1;
return mSamplerAllocators[allocatorIndex].get();
}
StagingDescriptorAllocator* Device::GetRenderTargetViewAllocator() const {
return mRenderTargetViewAllocator.get();
}
StagingDescriptorAllocator* Device::GetDepthStencilViewAllocator() const {
return mDepthStencilViewAllocator.get();
}
SamplerHeapCache* Device::GetSamplerHeapCache() {
return mSamplerHeapCache.get();
}
}} // namespace dawn_native::d3d12