The Tor Browser / file comparison
comparison: gfx/angle/src/libGLESv2/renderer/Query11.cpp
gfx/angle/src/libGLESv2/renderer/Query11.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:2941cb7c0b38 |
|---|---|
| 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 // Query11.cpp: Defines the rx::Query11 class which implements rx::QueryImpl. | |
| 9 | |
| 10 #include "libGLESv2/renderer/Query11.h" | |
| 11 #include "libGLESv2/renderer/Renderer11.h" | |
| 12 #include "libGLESv2/main.h" | |
| 13 | |
| 14 namespace rx | |
| 15 { | |
| 16 | |
| 17 Query11::Query11(rx::Renderer11 *renderer, GLenum type) : QueryImpl(type) | |
| 18 { | |
| 19 mRenderer = renderer; | |
| 20 mQuery = NULL; | |
| 21 } | |
| 22 | |
| 23 Query11::~Query11() | |
| 24 { | |
| 25 if (mQuery) | |
| 26 { | |
| 27 mQuery->Release(); | |
| 28 mQuery = NULL; | |
| 29 } | |
| 30 } | |
| 31 | |
| 32 void Query11::begin() | |
| 33 { | |
| 34 if (mQuery == NULL) | |
| 35 { | |
| 36 D3D11_QUERY_DESC queryDesc; | |
| 37 queryDesc.Query = D3D11_QUERY_OCCLUSION; | |
| 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()->Begin(mQuery); | |
| 47 } | |
| 48 | |
| 49 void Query11::end() | |
| 50 { | |
| 51 if (mQuery == NULL) | |
| 52 { | |
| 53 return gl::error(GL_INVALID_OPERATION); | |
| 54 } | |
| 55 | |
| 56 mRenderer->getDeviceContext()->End(mQuery); | |
| 57 | |
| 58 mStatus = GL_FALSE; | |
| 59 mResult = GL_FALSE; | |
| 60 } | |
| 61 | |
| 62 GLuint Query11::getResult() | |
| 63 { | |
| 64 if (mQuery != NULL) | |
| 65 { | |
| 66 while (!testQuery()) | |
| 67 { | |
| 68 Sleep(0); | |
| 69 // explicitly check for device loss, some drivers seem to return S_FALSE | |
| 70 // if the device is lost | |
| 71 if (mRenderer->testDeviceLost(true)) | |
| 72 { | |
| 73 return gl::error(GL_OUT_OF_MEMORY, 0); | |
| 74 } | |
| 75 } | |
| 76 } | |
| 77 | |
| 78 return mResult; | |
| 79 } | |
| 80 | |
| 81 GLboolean Query11::isResultAvailable() | |
| 82 { | |
| 83 if (mQuery != NULL) | |
| 84 { | |
| 85 testQuery(); | |
| 86 } | |
| 87 | |
| 88 return mStatus; | |
| 89 } | |
| 90 | |
| 91 GLboolean Query11::testQuery() | |
| 92 { | |
| 93 if (mQuery != NULL && mStatus != GL_TRUE) | |
| 94 { | |
| 95 UINT64 numPixels = 0; | |
| 96 HRESULT result = mRenderer->getDeviceContext()->GetData(mQuery, &numPixels, sizeof(UINT64), 0); | |
| 97 if (result == S_OK) | |
| 98 { | |
| 99 mStatus = GL_TRUE; | |
| 100 | |
| 101 switch (getType()) | |
| 102 { | |
| 103 case GL_ANY_SAMPLES_PASSED_EXT: | |
| 104 case GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT: | |
| 105 mResult = (numPixels > 0) ? GL_TRUE : GL_FALSE; | |
| 106 break; | |
| 107 default: | |
| 108 UNREACHABLE(); | |
| 109 } | |
| 110 } | |
| 111 else if (mRenderer->testDeviceLost(true)) | |
| 112 { | |
| 113 return gl::error(GL_OUT_OF_MEMORY, GL_TRUE); | |
| 114 } | |
| 115 | |
| 116 return mStatus; | |
| 117 } | |
| 118 | |
| 119 return GL_TRUE; // prevent blocking when query is null | |
| 120 } | |
| 121 | |
| 122 } |
