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comparison: gfx/ipc/SharedDIBSurface.h
gfx/ipc/SharedDIBSurface.h
- branch
- TOR_BUG_9701
- changeset 14
- 925c144e1f1f
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| -1:000000000000 | 0:76a98eba52ed |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef mozilla_gfx_SharedDIBSurface_h | |
| 7 #define mozilla_gfx_SharedDIBSurface_h | |
| 8 | |
| 9 #include "gfxImageSurface.h" | |
| 10 #include "SharedDIBWin.h" | |
| 11 | |
| 12 #include <windows.h> | |
| 13 | |
| 14 namespace mozilla { | |
| 15 namespace gfx { | |
| 16 | |
| 17 /** | |
| 18 * A SharedDIBSurface owns an underlying SharedDIBWin. | |
| 19 */ | |
| 20 class SharedDIBSurface : public gfxImageSurface | |
| 21 { | |
| 22 public: | |
| 23 typedef base::SharedMemoryHandle Handle; | |
| 24 | |
| 25 SharedDIBSurface() { } | |
| 26 ~SharedDIBSurface() { } | |
| 27 | |
| 28 /** | |
| 29 * Create this image surface backed by shared memory. | |
| 30 */ | |
| 31 bool Create(HDC adc, uint32_t aWidth, uint32_t aHeight, bool aTransparent); | |
| 32 | |
| 33 /** | |
| 34 * Attach this surface to shared memory from another process. | |
| 35 */ | |
| 36 bool Attach(Handle aHandle, uint32_t aWidth, uint32_t aHeight, | |
| 37 bool aTransparent); | |
| 38 | |
| 39 /** | |
| 40 * After drawing to a surface via GDI, GDI must be flushed before the bitmap | |
| 41 * is valid. | |
| 42 */ | |
| 43 void Flush() { ::GdiFlush(); } | |
| 44 | |
| 45 HDC GetHDC() { return mSharedDIB.GetHDC(); } | |
| 46 | |
| 47 nsresult ShareToProcess(base::ProcessHandle aChildProcess, Handle* aChildHandle) { | |
| 48 return mSharedDIB.ShareToProcess(aChildProcess, aChildHandle); | |
| 49 } | |
| 50 | |
| 51 static bool IsSharedDIBSurface(gfxASurface* aSurface); | |
| 52 | |
| 53 private: | |
| 54 SharedDIBWin mSharedDIB; | |
| 55 | |
| 56 void InitSurface(uint32_t aWidth, uint32_t aHeight, bool aTransparent); | |
| 57 }; | |
| 58 | |
| 59 } // namespace gfx | |
| 60 } // namespace mozilla | |
| 61 | |
| 62 #endif // mozilla_gfx_SharedDIBSurface_h |
