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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.
#ifndef DAWNNATIVE_D3D12BACKEND_H_
#define DAWNNATIVE_D3D12BACKEND_H_
#include <dawn/dawn_wsi.h>
#include <dawn_native/DawnNative.h>
#include <DXGI1_4.h>
#include <d3d12.h>
#include <windows.h>
#include <wrl/client.h>
#include <memory>
struct ID3D12Device;
struct ID3D12Resource;
namespace dawn_native { namespace d3d12 {
DAWN_NATIVE_EXPORT Microsoft::WRL::ComPtr<ID3D12Device> GetD3D12Device(WGPUDevice device);
DAWN_NATIVE_EXPORT DawnSwapChainImplementation CreateNativeSwapChainImpl(WGPUDevice device,
HWND window);
DAWN_NATIVE_EXPORT WGPUTextureFormat
GetNativeSwapChainPreferredFormat(const DawnSwapChainImplementation* swapChain);
enum MemorySegment {
Local,
NonLocal,
};
DAWN_NATIVE_EXPORT uint64_t SetExternalMemoryReservation(WGPUDevice device,
uint64_t requestedReservationSize,
MemorySegment memorySegment);
struct DAWN_NATIVE_EXPORT ExternalImageDescriptorDXGISharedHandle : ExternalImageDescriptor {
public:
ExternalImageDescriptorDXGISharedHandle();
// Note: SharedHandle must be a handle to a texture object.
HANDLE sharedHandle;
};
struct DAWN_NATIVE_EXPORT ExternalImageAccessDescriptorDXGIKeyedMutex
: ExternalImageAccessDescriptor {
public:
uint64_t acquireMutexKey;
// Release key will be set to acquireMutexKey + 1 if set to sentinel value UINT64_MAX.
uint64_t releaseMutexKey = UINT64_MAX;
bool isSwapChainTexture = false;
};
class DAWN_NATIVE_EXPORT ExternalImageDXGI {
public:
// Note: SharedHandle must be a handle to a texture object.
static std::unique_ptr<ExternalImageDXGI> Create(
WGPUDevice device,
const ExternalImageDescriptorDXGISharedHandle* descriptor);
WGPUTexture ProduceTexture(WGPUDevice device,
const ExternalImageAccessDescriptorDXGIKeyedMutex* descriptor);
private:
ExternalImageDXGI(Microsoft::WRL::ComPtr<ID3D12Resource> d3d12Resource,
const WGPUTextureDescriptor* descriptor);
Microsoft::WRL::ComPtr<ID3D12Resource> mD3D12Resource;
// Contents of WGPUTextureDescriptor are stored individually since the descriptor
// could outlive this image.
WGPUTextureUsageFlags mUsage;
WGPUTextureDimension mDimension;
WGPUExtent3D mSize;
WGPUTextureFormat mFormat;
uint32_t mMipLevelCount;
uint32_t mSampleCount;
};
struct DAWN_NATIVE_EXPORT AdapterDiscoveryOptions : public AdapterDiscoveryOptionsBase {
AdapterDiscoveryOptions(Microsoft::WRL::ComPtr<IDXGIAdapter> adapter);
Microsoft::WRL::ComPtr<IDXGIAdapter> dxgiAdapter;
};
}} // namespace dawn_native::d3d12
#endif // DAWNNATIVE_D3D12BACKEND_H_