widget/shared/nsShmImage.h@b8a032363ba2 (annotated)
widget/shared/nsShmImage.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
| michael@0 | 2 | * |
| michael@0 | 3 | * This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 6 | |
| michael@0 | 7 | #ifndef __mozilla_widget_nsShmImage_h__ |
| michael@0 | 8 | #define __mozilla_widget_nsShmImage_h__ |
| michael@0 | 9 | |
| michael@0 | 10 | #include "mozilla/ipc/SharedMemorySysV.h" |
| michael@0 | 11 | |
| michael@0 | 12 | #if defined(MOZ_X11) && defined(MOZ_HAVE_SHAREDMEMORYSYSV) |
| michael@0 | 13 | # define MOZ_HAVE_SHMIMAGE |
| michael@0 | 14 | #endif |
| michael@0 | 15 | |
| michael@0 | 16 | #ifdef MOZ_HAVE_SHMIMAGE |
| michael@0 | 17 | |
| michael@0 | 18 | #include "nsIWidget.h" |
| michael@0 | 19 | #include "gfxTypes.h" |
| michael@0 | 20 | #include "nsAutoPtr.h" |
| michael@0 | 21 | |
| michael@0 | 22 | #include "mozilla/X11Util.h" |
| michael@0 | 23 | #include <X11/Xlib.h> |
| michael@0 | 24 | #include <X11/Xutil.h> |
| michael@0 | 25 | #include <X11/extensions/XShm.h> |
| michael@0 | 26 | |
| michael@0 | 27 | #if defined(MOZ_WIDGET_GTK) |
| michael@0 | 28 | #define DISPLAY gdk_x11_get_default_xdisplay |
| michael@0 | 29 | #elif defined(MOZ_WIDGET_QT) |
| michael@0 | 30 | #define DISPLAY mozilla::DefaultXDisplay |
| michael@0 | 31 | #endif |
| michael@0 | 32 | |
| michael@0 | 33 | class QRect; |
| michael@0 | 34 | class QWindow; |
| michael@0 | 35 | class gfxASurface; |
| michael@0 | 36 | |
| michael@0 | 37 | class nsShmImage { |
| michael@0 | 38 | NS_INLINE_DECL_REFCOUNTING(nsShmImage) |
| michael@0 | 39 | |
| michael@0 | 40 | typedef mozilla::ipc::SharedMemorySysV SharedMemorySysV; |
| michael@0 | 41 | |
| michael@0 | 42 | public: |
| michael@0 | 43 | typedef gfxImageFormat Format; |
| michael@0 | 44 | |
| michael@0 | 45 | static bool UseShm(); |
| michael@0 | 46 | static already_AddRefed<nsShmImage> |
| michael@0 | 47 | Create(const gfxIntSize& aSize, Visual* aVisual, unsigned int aDepth); |
| michael@0 | 48 | static already_AddRefed<gfxASurface> |
| michael@0 | 49 | EnsureShmImage(const gfxIntSize& aSize, Visual* aVisual, unsigned int aDepth, |
| michael@0 | 50 | nsRefPtr<nsShmImage>& aImage); |
| michael@0 | 51 | |
| michael@0 | 52 | ~nsShmImage() { |
| michael@0 | 53 | if (mImage) { |
| michael@0 | 54 | mozilla::FinishX(DISPLAY()); |
| michael@0 | 55 | if (mXAttached) { |
| michael@0 | 56 | XShmDetach(DISPLAY(), &mInfo); |
| michael@0 | 57 | } |
| michael@0 | 58 | XDestroyImage(mImage); |
| michael@0 | 59 | } |
| michael@0 | 60 | } |
| michael@0 | 61 | |
| michael@0 | 62 | already_AddRefed<gfxASurface> AsSurface(); |
| michael@0 | 63 | |
| michael@0 | 64 | #if (MOZ_WIDGET_GTK == 2) |
| michael@0 | 65 | void Put(GdkWindow* aWindow, GdkRectangle* aRects, GdkRectangle* aEnd); |
| michael@0 | 66 | #elif (MOZ_WIDGET_GTK == 3) |
| michael@0 | 67 | void Put(GdkWindow* aWindow, cairo_rectangle_list_t* aRects); |
| michael@0 | 68 | #elif defined(MOZ_WIDGET_QT) |
| michael@0 | 69 | void Put(QWindow* aWindow, QRect& aRect); |
| michael@0 | 70 | #endif |
| michael@0 | 71 | |
| michael@0 | 72 | gfxIntSize Size() const { return mSize; } |
| michael@0 | 73 | |
| michael@0 | 74 | private: |
| michael@0 | 75 | nsShmImage() |
| michael@0 | 76 | : mImage(nullptr) |
| michael@0 | 77 | , mXAttached(false) |
| michael@0 | 78 | { mInfo.shmid = SharedMemorySysV::NULLHandle(); } |
| michael@0 | 79 | |
| michael@0 | 80 | nsRefPtr<SharedMemorySysV> mSegment; |
| michael@0 | 81 | XImage* mImage; |
| michael@0 | 82 | XShmSegmentInfo mInfo; |
| michael@0 | 83 | gfxIntSize mSize; |
| michael@0 | 84 | Format mFormat; |
| michael@0 | 85 | bool mXAttached; |
| michael@0 | 86 | }; |
| michael@0 | 87 | |
| michael@0 | 88 | #endif // MOZ_HAVE_SHMIMAGE |
| michael@0 | 89 | |
| michael@0 | 90 | #endif |
