mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-01 00:32:11 +00:00
e5e885ae31
# ignore-this-changeset --HG-- extra : amend_source : 7221c8d15a765df71171099468e7c7faa648f37c extra : histedit_source : a0cce6015636202bff09e35a13f72e03257a7695
76 lines
1.7 KiB
C++
76 lines
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* 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/. */
|
|
|
|
#ifndef __mozilla_widget_nsShmImage_h__
|
|
#define __mozilla_widget_nsShmImage_h__
|
|
|
|
#if defined(MOZ_X11)
|
|
# define MOZ_HAVE_SHMIMAGE
|
|
#endif
|
|
|
|
#ifdef MOZ_HAVE_SHMIMAGE
|
|
|
|
# include "mozilla/gfx/2D.h"
|
|
# include "nsIWidget.h"
|
|
# include "Units.h"
|
|
|
|
# include <X11/Xlib-xcb.h>
|
|
# include <xcb/shm.h>
|
|
|
|
class nsShmImage {
|
|
// bug 1168843, compositor thread may create shared memory instances that are
|
|
// destroyed by main thread on shutdown, so this must use thread-safe RC to
|
|
// avoid hitting assertion
|
|
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(nsShmImage)
|
|
|
|
public:
|
|
static bool UseShm();
|
|
|
|
already_AddRefed<mozilla::gfx::DrawTarget> CreateDrawTarget(
|
|
const mozilla::LayoutDeviceIntRegion& aRegion);
|
|
|
|
void Put(const mozilla::LayoutDeviceIntRegion& aRegion);
|
|
|
|
nsShmImage(Display* aDisplay, Drawable aWindow, Visual* aVisual,
|
|
unsigned int aDepth);
|
|
|
|
private:
|
|
~nsShmImage();
|
|
|
|
bool InitExtension();
|
|
|
|
bool CreateShmSegment();
|
|
void DestroyShmSegment();
|
|
|
|
bool CreateImage(const mozilla::gfx::IntSize& aSize);
|
|
void DestroyImage();
|
|
|
|
void WaitIfPendingReply();
|
|
|
|
Display* mDisplay;
|
|
xcb_connection_t* mConnection;
|
|
Window mWindow;
|
|
Visual* mVisual;
|
|
unsigned int mDepth;
|
|
|
|
mozilla::gfx::SurfaceFormat mFormat;
|
|
mozilla::gfx::IntSize mSize;
|
|
int mStride;
|
|
|
|
xcb_pixmap_t mPixmap;
|
|
xcb_gcontext_t mGC;
|
|
xcb_get_input_focus_cookie_t mSyncRequest;
|
|
bool mRequestPending;
|
|
|
|
xcb_shm_seg_t mShmSeg;
|
|
int mShmId;
|
|
uint8_t* mShmAddr;
|
|
};
|
|
|
|
#endif // MOZ_HAVE_SHMIMAGE
|
|
|
|
#endif
|