mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-13 18:27:35 +00:00
95 lines
3.1 KiB
C++
95 lines
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is Mozilla Firefox.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* the Mozilla Foundation <http://www.mozilla.org>.
|
|
* Portions created by the Initial Developer are Copyright (C) 2010
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#ifndef mozilla_gfx_SharedDIBSurface_h
|
|
#define mozilla_gfx_SharedDIBSurface_h
|
|
|
|
#include "gfxImageSurface.h"
|
|
#include "SharedDIBWin.h"
|
|
|
|
#include <windows.h>
|
|
|
|
namespace mozilla {
|
|
namespace gfx {
|
|
|
|
/**
|
|
* A SharedDIBSurface owns an underlying SharedDIBWin.
|
|
*/
|
|
class SharedDIBSurface : public gfxImageSurface
|
|
{
|
|
public:
|
|
typedef base::SharedMemoryHandle Handle;
|
|
|
|
SharedDIBSurface() { }
|
|
~SharedDIBSurface() { }
|
|
|
|
/**
|
|
* Create this image surface backed by shared memory.
|
|
*/
|
|
bool Create(HDC adc, PRUint32 aWidth, PRUint32 aHeight, bool aTransparent);
|
|
|
|
/**
|
|
* Attach this surface to shared memory from another process.
|
|
*/
|
|
bool Attach(Handle aHandle, PRUint32 aWidth, PRUint32 aHeight,
|
|
bool aTransparent);
|
|
|
|
/**
|
|
* After drawing to a surface via GDI, GDI must be flushed before the bitmap
|
|
* is valid.
|
|
*/
|
|
void Flush() { ::GdiFlush(); }
|
|
|
|
HDC GetHDC() { return mSharedDIB.GetHDC(); }
|
|
|
|
nsresult ShareToProcess(base::ProcessHandle aChildProcess, Handle* aChildHandle) {
|
|
return mSharedDIB.ShareToProcess(aChildProcess, aChildHandle);
|
|
}
|
|
|
|
static bool IsSharedDIBSurface(gfxASurface* aSurface);
|
|
|
|
private:
|
|
SharedDIBWin mSharedDIB;
|
|
|
|
void InitSurface(PRUint32 aWidth, PRUint32 aHeight, bool aTransparent);
|
|
};
|
|
|
|
} // namespace gfx
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_gfx_SharedDIBSurface_h
|