gecko-dev/gfx/layers/d3d11/HelpersD3D11.h

36 строки
1.0 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#ifndef mozilla_gfx_layers_d3d11_HelpersD3D11_h
#define mozilla_gfx_layers_d3d11_HelpersD3D11_h
#include <d3d11.h>
#include "mozilla/TimeStamp.h"
namespace mozilla {
namespace layers {
template <typename T> static inline bool
WaitForGPUQuery(ID3D11Device* aDevice, ID3D11DeviceContext* aContext, ID3D11Query* aQuery, T* aOut)
{
TimeStamp start = TimeStamp::Now();
while (aContext->GetData(aQuery, aOut, sizeof(*aOut), 0) != S_OK) {
if (aDevice->GetDeviceRemovedReason() != S_OK) {
return false;
}
if (TimeStamp::Now() - start > TimeDuration::FromSeconds(2)) {
return false;
}
Sleep(0);
}
return true;
}
} // namespace layers
} // namespace gfx
#endif // mozilla_gfx_layers_d3d11_HelpersD3D11_h