1//
2// Copyright (c) 2013 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// Fence11.cpp: Defines the rx::Fence11 class which implements rx::FenceImpl.
8
9#include "libGLESv2/renderer/d3d/d3d11/Fence11.h"
10#include "libGLESv2/renderer/d3d/d3d11/Renderer11.h"
11#include "libGLESv2/main.h"
12
13namespace rx
14{
15
16Fence11::Fence11(rx::Renderer11 *renderer)
17{
18    mRenderer = renderer;
19    mQuery = NULL;
20}
21
22Fence11::~Fence11()
23{
24    SafeRelease(mQuery);
25}
26
27bool Fence11::isSet() const
28{
29    return mQuery != NULL;
30}
31
32void Fence11::set()
33{
34    if (!mQuery)
35    {
36        D3D11_QUERY_DESC queryDesc;
37        queryDesc.Query = D3D11_QUERY_EVENT;
38        queryDesc.MiscFlags = 0;
39
40        if (FAILED(mRenderer->getDevice()->CreateQuery(&queryDesc, &mQuery)))
41        {
42            return gl::error(GL_OUT_OF_MEMORY);
43        }
44    }
45
46    mRenderer->getDeviceContext()->End(mQuery);
47}
48
49bool Fence11::test(bool flushCommandBuffer)
50{
51    ASSERT(mQuery);
52
53    UINT getDataFlags = (flushCommandBuffer ? 0 : D3D11_ASYNC_GETDATA_DONOTFLUSH);
54    HRESULT result = mRenderer->getDeviceContext()->GetData(mQuery, NULL, 0, getDataFlags);
55
56    if (mRenderer->isDeviceLost())
57    {
58       return gl::error(GL_OUT_OF_MEMORY, true);
59    }
60
61    ASSERT(result == S_OK || result == S_FALSE);
62    return (result == S_OK);
63}
64
65bool Fence11::hasError() const
66{
67    return mRenderer->isDeviceLost();
68}
69
70}
71