blob: eea97206263b6999fb53c65ad622c05ee3fe7dec [file] [log] [blame]
// Copyright 2019 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/BackendD3D12.h"
#include "dawn_native/D3D12Backend.h"
#include "dawn_native/Instance.h"
#include "dawn_native/d3d12/AdapterD3D12.h"
#include "dawn_native/d3d12/PlatformFunctions.h"
namespace dawn_native { namespace d3d12 {
namespace {
ResultOrError<ComPtr<IDXGIFactory4>> CreateFactory(const PlatformFunctions* functions,
bool enableBackendValidation,
bool beginCaptureOnStartup) {
ComPtr<IDXGIFactory4> factory;
uint32_t dxgiFactoryFlags = 0;
// Enable the debug layer (requires the Graphics Tools "optional feature").
{
if (enableBackendValidation) {
ComPtr<ID3D12Debug> debugController;
if (SUCCEEDED(
functions->d3d12GetDebugInterface(IID_PPV_ARGS(&debugController)))) {
ASSERT(debugController != nullptr);
debugController->EnableDebugLayer();
// Enable additional debug layers.
dxgiFactoryFlags |= DXGI_CREATE_FACTORY_DEBUG;
}
ComPtr<IDXGIDebug1> dxgiDebug;
if (SUCCEEDED(functions->dxgiGetDebugInterface1(0, IID_PPV_ARGS(&dxgiDebug)))) {
ASSERT(dxgiDebug != nullptr);
dxgiDebug->ReportLiveObjects(DXGI_DEBUG_ALL,
DXGI_DEBUG_RLO_FLAGS(DXGI_DEBUG_RLO_ALL));
}
}
if (beginCaptureOnStartup) {
ComPtr<IDXGraphicsAnalysis> graphicsAnalysis;
if (SUCCEEDED(functions->dxgiGetDebugInterface1(
0, IID_PPV_ARGS(&graphicsAnalysis)))) {
graphicsAnalysis->BeginCapture();
}
}
}
if (FAILED(functions->createDxgiFactory2(dxgiFactoryFlags, IID_PPV_ARGS(&factory)))) {
return DAWN_INTERNAL_ERROR("Failed to create a DXGI factory");
}
ASSERT(factory != nullptr);
return std::move(factory);
}
} // anonymous namespace
Backend::Backend(InstanceBase* instance)
: BackendConnection(instance, wgpu::BackendType::D3D12) {
}
MaybeError Backend::Initialize() {
mFunctions = std::make_unique<PlatformFunctions>();
DAWN_TRY(mFunctions->LoadFunctions());
const auto instance = GetInstance();
DAWN_TRY_ASSIGN(mFactory,
CreateFactory(mFunctions.get(), instance->IsBackendValidationEnabled(),
instance->IsBeginCaptureOnStartupEnabled()));
return {};
}
ComPtr<IDXGIFactory4> Backend::GetFactory() const {
return mFactory;
}
const PlatformFunctions* Backend::GetFunctions() const {
return mFunctions.get();
}
std::vector<std::unique_ptr<AdapterBase>> Backend::DiscoverDefaultAdapters() {
std::vector<std::unique_ptr<AdapterBase>> adapters;
for (uint32_t adapterIndex = 0;; ++adapterIndex) {
ComPtr<IDXGIAdapter1> dxgiAdapter = nullptr;
if (mFactory->EnumAdapters1(adapterIndex, &dxgiAdapter) == DXGI_ERROR_NOT_FOUND) {
break; // No more adapters to enumerate.
}
ASSERT(dxgiAdapter != nullptr);
ComPtr<IDXGIAdapter3> dxgiAdapter3;
HRESULT result = dxgiAdapter.As(&dxgiAdapter3);
ASSERT(SUCCEEDED(result));
std::unique_ptr<Adapter> adapter =
std::make_unique<Adapter>(this, std::move(dxgiAdapter3));
if (GetInstance()->ConsumedError(adapter->Initialize())) {
continue;
}
adapters.push_back(std::move(adapter));
}
return adapters;
}
BackendConnection* Connect(InstanceBase* instance) {
Backend* backend = new Backend(instance);
if (instance->ConsumedError(backend->Initialize())) {
delete backend;
return nullptr;
}
return backend;
}
}} // namespace dawn_native::d3d12