gfx/ipc/SharedDIBWin.h@925c144e1f1f (annotated)
gfx/ipc/SharedDIBWin.h
Fri, 16 Jan 2015 18:13:44 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Fri, 16 Jan 2015 18:13:44 +0100
- branch
- TOR_BUG_9701
- changeset 14
- 925c144e1f1f
- permissions
- -rw-r--r--
Integrate suggestion from review to improve consistency with existing code.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifndef gfx_SharedDIBWin_h__ |
| michael@0 | 7 | #define gfx_SharedDIBWin_h__ |
| michael@0 | 8 | |
| michael@0 | 9 | #include <windows.h> |
| michael@0 | 10 | |
| michael@0 | 11 | #include "SharedDIB.h" |
| michael@0 | 12 | |
| michael@0 | 13 | namespace mozilla { |
| michael@0 | 14 | namespace gfx { |
| michael@0 | 15 | |
| michael@0 | 16 | class SharedDIBWin : public SharedDIB |
| michael@0 | 17 | { |
| michael@0 | 18 | public: |
| michael@0 | 19 | SharedDIBWin(); |
| michael@0 | 20 | ~SharedDIBWin(); |
| michael@0 | 21 | |
| michael@0 | 22 | // Allocate a new win32 dib section compatible with an hdc. The dib will |
| michael@0 | 23 | // be selected into the hdc on return. |
| michael@0 | 24 | nsresult Create(HDC aHdc, uint32_t aWidth, uint32_t aHeight, |
| michael@0 | 25 | bool aTransparent); |
| michael@0 | 26 | |
| michael@0 | 27 | // Wrap a dib section around an existing shared memory object. aHandle should |
| michael@0 | 28 | // point to a section large enough for the dib's memory, otherwise this call |
| michael@0 | 29 | // will fail. |
| michael@0 | 30 | nsresult Attach(Handle aHandle, uint32_t aWidth, uint32_t aHeight, |
| michael@0 | 31 | bool aTransparent); |
| michael@0 | 32 | |
| michael@0 | 33 | // Destroy or release resources associated with this dib. |
| michael@0 | 34 | nsresult Close(); |
| michael@0 | 35 | |
| michael@0 | 36 | // Return the HDC of the shared dib. |
| michael@0 | 37 | HDC GetHDC() { return mSharedHdc; } |
| michael@0 | 38 | |
| michael@0 | 39 | // Return the bitmap bits. |
| michael@0 | 40 | void* GetBits() { return mBitmapBits; } |
| michael@0 | 41 | |
| michael@0 | 42 | private: |
| michael@0 | 43 | HDC mSharedHdc; |
| michael@0 | 44 | HBITMAP mSharedBmp; |
| michael@0 | 45 | HGDIOBJ mOldObj; |
| michael@0 | 46 | void* mBitmapBits; |
| michael@0 | 47 | |
| michael@0 | 48 | uint32_t SetupBitmapHeader(uint32_t aWidth, uint32_t aHeight, |
| michael@0 | 49 | bool aTransparent, BITMAPV4HEADER *aHeader); |
| michael@0 | 50 | nsresult SetupSurface(HDC aHdc, BITMAPV4HEADER *aHdr); |
| michael@0 | 51 | }; |
| michael@0 | 52 | |
| michael@0 | 53 | } // gfx |
| michael@0 | 54 | } // mozilla |
| michael@0 | 55 | |
| michael@0 | 56 | #endif |
