gecko/content/media/wmf/DXVA2Manager.cpp
Birunthan Mohanathas 872802570b Bug 784739 - Switch from NULL to nullptr in content/; r=ehsan
--HG--
extra : rebase_source : 9237726507e8002479616a98a82646a763932507
2013-10-23 16:34:10 -04:00

214 lines
6.5 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "DXVA2Manager.h"
#include "nsThreadUtils.h"
#include "ImageContainer.h"
#include "D3D9SurfaceImage.h"
#include "mozilla/Preferences.h"
namespace mozilla {
using layers::Image;
using layers::ImageContainer;
using layers::D3D9SurfaceImage;
class D3D9DXVA2Manager : public DXVA2Manager
{
public:
D3D9DXVA2Manager();
virtual ~D3D9DXVA2Manager();
HRESULT Init();
IUnknown* GetDXVADeviceManager() MOZ_OVERRIDE;
// Copies a region (aRegion) of the video frame stored in aVideoSample
// into an image which is returned by aOutImage.
HRESULT CopyToImage(IMFSample* aVideoSample,
const nsIntRect& aRegion,
ImageContainer* aContainer,
Image** aOutImage) MOZ_OVERRIDE;
private:
nsRefPtr<IDirect3D9Ex> mD3D9;
nsRefPtr<IDirect3DDevice9Ex> mDevice;
nsRefPtr<IDirect3DDeviceManager9> mDeviceManager;
UINT32 mResetToken;
};
D3D9DXVA2Manager::D3D9DXVA2Manager()
: mResetToken(0)
{
MOZ_COUNT_CTOR(D3D9DXVA2Manager);
MOZ_ASSERT(NS_IsMainThread());
}
D3D9DXVA2Manager::~D3D9DXVA2Manager()
{
MOZ_COUNT_DTOR(D3D9DXVA2Manager);
MOZ_ASSERT(NS_IsMainThread());
}
IUnknown*
D3D9DXVA2Manager::GetDXVADeviceManager()
{
MutexAutoLock lock(mLock);
return mDeviceManager;
}
typedef HRESULT (WINAPI*Direct3DCreate9Func)(UINT SDKVersion, IDirect3D9Ex**);
HRESULT
D3D9DXVA2Manager::Init()
{
MOZ_ASSERT(NS_IsMainThread());
// Create D3D9Ex.
HMODULE d3d9lib = LoadLibraryW(L"d3d9.dll");
NS_ENSURE_TRUE(d3d9lib, E_FAIL);
Direct3DCreate9Func d3d9Create =
(Direct3DCreate9Func)GetProcAddress(d3d9lib, "Direct3DCreate9Ex");
nsRefPtr<IDirect3D9Ex> d3d9Ex;
HRESULT hr = d3d9Create(D3D_SDK_VERSION, getter_AddRefs(d3d9Ex));
if (!d3d9Ex) {
NS_WARNING("Direct3DCreate9 failed");
return E_FAIL;
}
// Ensure we can do the YCbCr->RGB conversion in StretchRect.
// Fail if we can't.
hr = d3d9Ex->CheckDeviceFormatConversion(D3DADAPTER_DEFAULT,
D3DDEVTYPE_HAL,
(D3DFORMAT)MAKEFOURCC('N','V','1','2'),
D3DFMT_X8R8G8B8);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
// Create D3D9DeviceEx.
D3DPRESENT_PARAMETERS params = {0};
params.BackBufferWidth = 1;
params.BackBufferHeight = 1;
params.BackBufferFormat = D3DFMT_UNKNOWN;
params.BackBufferCount = 1;
params.SwapEffect = D3DSWAPEFFECT_DISCARD;
params.hDeviceWindow = ::GetShellWindow();
params.Windowed = TRUE;
params.Flags = D3DPRESENTFLAG_VIDEO;
nsRefPtr<IDirect3DDevice9Ex> device;
hr = d3d9Ex->CreateDeviceEx(D3DADAPTER_DEFAULT,
D3DDEVTYPE_HAL,
::GetShellWindow(),
D3DCREATE_FPU_PRESERVE |
D3DCREATE_MULTITHREADED |
D3DCREATE_MIXED_VERTEXPROCESSING,
&params,
nullptr,
getter_AddRefs(device));
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
// Ensure we can create queries to synchronize operations between devices.
// Without this, when we make a copy of the frame in order to share it with
// another device, we can't be sure that the copy has finished before the
// other device starts using it.
nsRefPtr<IDirect3DQuery9> query;
hr = device->CreateQuery(D3DQUERYTYPE_EVENT, getter_AddRefs(query));
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
// Create and initialize IDirect3DDeviceManager9.
UINT resetToken = 0;
nsRefPtr<IDirect3DDeviceManager9> deviceManager;
hr = wmf::DXVA2CreateDirect3DDeviceManager9(&resetToken,
getter_AddRefs(deviceManager));
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
hr = deviceManager->ResetDevice(device, resetToken);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
mResetToken = resetToken;
mD3D9 = d3d9Ex;
mDevice = device;
mDeviceManager = deviceManager;
return S_OK;
}
HRESULT
D3D9DXVA2Manager::CopyToImage(IMFSample* aSample,
const nsIntRect& aRegion,
ImageContainer* aImageContainer,
Image** aOutImage)
{
nsRefPtr<IMFMediaBuffer> buffer;
HRESULT hr = aSample->GetBufferByIndex(0, getter_AddRefs(buffer));
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
nsRefPtr<IDirect3DSurface9> surface;
hr = wmf::MFGetService(buffer,
MR_BUFFER_SERVICE,
IID_IDirect3DSurface9,
getter_AddRefs(surface));
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
ImageFormat format = D3D9_RGB32_TEXTURE;
nsRefPtr<Image> image = aImageContainer->CreateImage(&format, 1);
NS_ENSURE_TRUE(image, E_FAIL);
NS_ASSERTION(image->GetFormat() == D3D9_RGB32_TEXTURE,
"Wrong format?");
D3D9SurfaceImage* videoImage = static_cast<D3D9SurfaceImage*>(image.get());
hr = videoImage->SetData(D3D9SurfaceImage::Data(surface, aRegion));
image.forget(aOutImage);
return S_OK;
}
// Count of the number of DXVAManager's we've created. This is also the
// number of videos we're decoding with DXVA. Use on main thread only.
static uint32_t sDXVAVideosCount = 0;
/* static */
DXVA2Manager*
DXVA2Manager::Create()
{
MOZ_ASSERT(NS_IsMainThread());
HRESULT hr;
// DXVA processing takes up a lot of GPU resources, so limit the number of
// videos we use DXVA with at any one time.
const uint32_t dxvaLimit =
Preferences::GetInt("media.windows-media-foundation.max-dxva-videos", 8);
if (sDXVAVideosCount == dxvaLimit) {
return nullptr;
}
nsAutoPtr<D3D9DXVA2Manager> d3d9Manager(new D3D9DXVA2Manager());
hr = d3d9Manager->Init();
if (SUCCEEDED(hr)) {
return d3d9Manager.forget();
}
// No hardware accelerated video decoding. :(
return nullptr;
}
DXVA2Manager::DXVA2Manager()
: mLock("DXVA2Manager")
{
MOZ_ASSERT(NS_IsMainThread());
++sDXVAVideosCount;
}
DXVA2Manager::~DXVA2Manager()
{
MOZ_ASSERT(NS_IsMainThread());
--sDXVAVideosCount;
}
} // namespace mozilla