tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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Trim11.cpp (2819B)

      1 //
      2 // Copyright 2014 The ANGLE Project Authors. All rights reserved.
      3 // Use of this source code is governed by a BSD-style license that can be
      4 // found in the LICENSE file.
      5 //
      6 
      7 // Trim11.cpp: Trim support utility class.
      8 
      9 #include "libANGLE/renderer/d3d/d3d11/Trim11.h"
     10 #include "libANGLE/renderer/d3d/d3d11/Renderer11.h"
     11 #include "libANGLE/renderer/d3d/d3d11/renderer11_utils.h"
     12 
     13 #if defined(ANGLE_ENABLE_WINDOWS_UWP)
     14 #    include <windows.applicationmodel.core.h>
     15 #    include <wrl.h>
     16 #    include <wrl/wrappers/corewrappers.h>
     17 using namespace Microsoft::WRL;
     18 using namespace Microsoft::WRL::Wrappers;
     19 using namespace ABI::Windows::ApplicationModel;
     20 using namespace ABI::Windows::ApplicationModel::Core;
     21 using namespace ABI::Windows::Foundation;
     22 using namespace ABI::Windows::Foundation::Collections;
     23 #endif
     24 
     25 namespace rx
     26 {
     27 
     28 Trim11::Trim11(rx::Renderer11 *renderer) : mRenderer(renderer)
     29 {
     30    bool result = true;
     31    result      = registerForRendererTrimRequest();
     32    ASSERT(result);
     33 }
     34 
     35 Trim11::~Trim11()
     36 {
     37    unregisterForRendererTrimRequest();
     38 }
     39 
     40 void Trim11::trim()
     41 {
     42    if (!mRenderer)
     43    {
     44        return;
     45    }
     46 
     47 #if defined(ANGLE_ENABLE_WINDOWS_UWP)
     48    ID3D11Device *device      = mRenderer->getDevice();
     49    IDXGIDevice3 *dxgiDevice3 = d3d11::DynamicCastComObject<IDXGIDevice3>(device);
     50    if (dxgiDevice3)
     51    {
     52        dxgiDevice3->Trim();
     53    }
     54    SafeRelease(dxgiDevice3);
     55 #endif
     56 }
     57 
     58 bool Trim11::registerForRendererTrimRequest()
     59 {
     60 #if defined(ANGLE_ENABLE_WINDOWS_UWP)
     61    ICoreApplication *coreApplication = nullptr;
     62    HRESULT result                    = GetActivationFactory(
     63        HStringReference(RuntimeClass_Windows_ApplicationModel_Core_CoreApplication).Get(),
     64        &coreApplication);
     65    if (SUCCEEDED(result))
     66    {
     67        auto suspendHandler = Callback<IEventHandler<SuspendingEventArgs *>>(
     68            [this](IInspectable *, ISuspendingEventArgs *) -> HRESULT {
     69                trim();
     70                return S_OK;
     71            });
     72        result =
     73            coreApplication->add_Suspending(suspendHandler.Get(), &mApplicationSuspendedEventToken);
     74    }
     75    SafeRelease(coreApplication);
     76 
     77    if (FAILED(result))
     78    {
     79        return false;
     80    }
     81 #endif
     82    return true;
     83 }
     84 
     85 void Trim11::unregisterForRendererTrimRequest()
     86 {
     87 #if defined(ANGLE_ENABLE_WINDOWS_UWP)
     88    if (mApplicationSuspendedEventToken.value != 0)
     89    {
     90        ICoreApplication *coreApplication = nullptr;
     91        if (SUCCEEDED(GetActivationFactory(
     92                HStringReference(RuntimeClass_Windows_ApplicationModel_Core_CoreApplication).Get(),
     93                &coreApplication)))
     94        {
     95            coreApplication->remove_Suspending(mApplicationSuspendedEventToken);
     96        }
     97        mApplicationSuspendedEventToken.value = 0;
     98        SafeRelease(coreApplication);
     99    }
    100 #endif
    101 }
    102 
    103 }  // namespace rx