The Tor Browser / file comparison
comparison: gfx/angle/src/libGLESv2/renderer/Fence11.cpp
gfx/angle/src/libGLESv2/renderer/Fence11.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:65245120886f |
|---|---|
| 1 #include "precompiled.h" | |
| 2 // | |
| 3 // Copyright (c) 2013 The ANGLE Project Authors. All rights reserved. | |
| 4 // Use of this source code is governed by a BSD-style license that can be | |
| 5 // found in the LICENSE file. | |
| 6 // | |
| 7 | |
| 8 // Fence11.cpp: Defines the rx::Fence11 class which implements rx::FenceImpl. | |
| 9 | |
| 10 #include "libGLESv2/renderer/Fence11.h" | |
| 11 #include "libGLESv2/main.h" | |
| 12 #include "libGLESv2/renderer/Renderer11.h" | |
| 13 | |
| 14 namespace rx | |
| 15 { | |
| 16 | |
| 17 Fence11::Fence11(rx::Renderer11 *renderer) | |
| 18 { | |
| 19 mRenderer = renderer; | |
| 20 mQuery = NULL; | |
| 21 } | |
| 22 | |
| 23 Fence11::~Fence11() | |
| 24 { | |
| 25 if (mQuery) | |
| 26 { | |
| 27 mQuery->Release(); | |
| 28 mQuery = NULL; | |
| 29 } | |
| 30 } | |
| 31 | |
| 32 GLboolean Fence11::isFence() | |
| 33 { | |
| 34 // GL_NV_fence spec: | |
| 35 // A name returned by GenFencesNV, but not yet set via SetFenceNV, is not the name of an existing fence. | |
| 36 return mQuery != NULL; | |
| 37 } | |
| 38 | |
| 39 void Fence11::setFence(GLenum condition) | |
| 40 { | |
| 41 if (!mQuery) | |
| 42 { | |
| 43 D3D11_QUERY_DESC queryDesc; | |
| 44 queryDesc.Query = D3D11_QUERY_EVENT; | |
| 45 queryDesc.MiscFlags = 0; | |
| 46 | |
| 47 if (FAILED(mRenderer->getDevice()->CreateQuery(&queryDesc, &mQuery))) | |
| 48 { | |
| 49 return gl::error(GL_OUT_OF_MEMORY); | |
| 50 } | |
| 51 } | |
| 52 | |
| 53 mRenderer->getDeviceContext()->End(mQuery); | |
| 54 | |
| 55 setCondition(condition); | |
| 56 setStatus(GL_FALSE); | |
| 57 } | |
| 58 | |
| 59 GLboolean Fence11::testFence() | |
| 60 { | |
| 61 if (mQuery == NULL) | |
| 62 { | |
| 63 return gl::error(GL_INVALID_OPERATION, GL_TRUE); | |
| 64 } | |
| 65 | |
| 66 HRESULT result = mRenderer->getDeviceContext()->GetData(mQuery, NULL, 0, 0); | |
| 67 | |
| 68 if (mRenderer->isDeviceLost()) | |
| 69 { | |
| 70 return gl::error(GL_OUT_OF_MEMORY, GL_TRUE); | |
| 71 } | |
| 72 | |
| 73 ASSERT(result == S_OK || result == S_FALSE); | |
| 74 setStatus(result == S_OK); | |
| 75 return getStatus(); | |
| 76 } | |
| 77 | |
| 78 void Fence11::finishFence() | |
| 79 { | |
| 80 if (mQuery == NULL) | |
| 81 { | |
| 82 return gl::error(GL_INVALID_OPERATION); | |
| 83 } | |
| 84 | |
| 85 while (!testFence()) | |
| 86 { | |
| 87 Sleep(0); | |
| 88 } | |
| 89 } | |
| 90 | |
| 91 void Fence11::getFenceiv(GLenum pname, GLint *params) | |
| 92 { | |
| 93 if (mQuery == NULL) | |
| 94 { | |
| 95 return gl::error(GL_INVALID_OPERATION); | |
| 96 } | |
| 97 | |
| 98 switch (pname) | |
| 99 { | |
| 100 case GL_FENCE_STATUS_NV: | |
| 101 { | |
| 102 // GL_NV_fence spec: | |
| 103 // Once the status of a fence has been finished (via FinishFenceNV) or tested and the returned status is TRUE (via either TestFenceNV | |
| 104 // or GetFenceivNV querying the FENCE_STATUS_NV), the status remains TRUE until the next SetFenceNV of the fence. | |
| 105 if (getStatus()) | |
| 106 { | |
| 107 params[0] = GL_TRUE; | |
| 108 return; | |
| 109 } | |
| 110 | |
| 111 HRESULT result = mRenderer->getDeviceContext()->GetData(mQuery, NULL, 0, D3D11_ASYNC_GETDATA_DONOTFLUSH); | |
| 112 | |
| 113 if (mRenderer->isDeviceLost()) | |
| 114 { | |
| 115 params[0] = GL_TRUE; | |
| 116 return gl::error(GL_OUT_OF_MEMORY); | |
| 117 } | |
| 118 | |
| 119 ASSERT(result == S_OK || result == S_FALSE); | |
| 120 setStatus(result == S_OK); | |
| 121 params[0] = getStatus(); | |
| 122 | |
| 123 break; | |
| 124 } | |
| 125 case GL_FENCE_CONDITION_NV: | |
| 126 params[0] = getCondition(); | |
| 127 break; | |
| 128 default: | |
| 129 return gl::error(GL_INVALID_ENUM); | |
| 130 break; | |
| 131 } | |
| 132 } | |
| 133 | |
| 134 } |
