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| 1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CCDrawQuad_h | 5 #ifndef CCDrawQuad_h |
| 6 #define CCDrawQuad_h | 6 #define CCDrawQuad_h |
| 7 | 7 |
| 8 #include "CCSharedQuadState.h" | 8 #include "CCSharedQuadState.h" |
| 9 | 9 |
| 10 namespace WebCore { | 10 namespace cc { |
| 11 | 11 |
| 12 // WARNING! All CCXYZDrawQuad classes must remain PODs (plain old data). | 12 // WARNING! All CCXYZDrawQuad classes must remain PODs (plain old data). |
| 13 // They are intended to be "serializable" by copying their raw bytes, so they | 13 // They are intended to be "serializable" by copying their raw bytes, so they |
| 14 // must not contain any non-bit-copyable member variables! | 14 // must not contain any non-bit-copyable member variables! |
| 15 // | 15 // |
| 16 // Furthermore, the class members need to be packed so they are aligned | 16 // Furthermore, the class members need to be packed so they are aligned |
| 17 // properly and don't have paddings/gaps, otherwise memory check tools | 17 // properly and don't have paddings/gaps, otherwise memory check tools |
| 18 // like Valgrind will complain about uninitialized memory usage when | 18 // like Valgrind will complain about uninitialized memory usage when |
| 19 // transferring these classes over the wire. | 19 // transferring these classes over the wire. |
| 20 #pragma pack(push, 4) | 20 #pragma pack(push, 4) |
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| 87 // Be default, this rect is empty. It is used when the shared quad state and
above | 87 // Be default, this rect is empty. It is used when the shared quad state and
above |
| 88 // variables determine that the quad is not fully opaque but may be partiall
y opaque. | 88 // variables determine that the quad is not fully opaque but may be partiall
y opaque. |
| 89 IntRect m_opaqueRect; | 89 IntRect m_opaqueRect; |
| 90 }; | 90 }; |
| 91 | 91 |
| 92 #pragma pack(pop) | 92 #pragma pack(pop) |
| 93 | 93 |
| 94 } | 94 } |
| 95 | 95 |
| 96 #endif | 96 #endif |
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