2011-05-26 19:41:33 +00:00
|
|
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
2012-05-21 11:12:37 +00:00
|
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
2011-05-26 19:41:33 +00:00
|
|
|
|
|
|
|
#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.
|
|
|
|
*/
|
2012-08-22 15:56:38 +00:00
|
|
|
bool Create(HDC adc, uint32_t aWidth, uint32_t aHeight, bool aTransparent);
|
2011-05-26 19:41:33 +00:00
|
|
|
|
|
|
|
/**
|
|
|
|
* Attach this surface to shared memory from another process.
|
|
|
|
*/
|
2012-08-22 15:56:38 +00:00
|
|
|
bool Attach(Handle aHandle, uint32_t aWidth, uint32_t aHeight,
|
2011-05-26 19:41:33 +00:00
|
|
|
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;
|
|
|
|
|
2012-08-22 15:56:38 +00:00
|
|
|
void InitSurface(uint32_t aWidth, uint32_t aHeight, bool aTransparent);
|
2011-05-26 19:41:33 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
} // namespace gfx
|
|
|
|
} // namespace mozilla
|
|
|
|
|
|
|
|
#endif // mozilla_gfx_SharedDIBSurface_h
|