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comparison: widget/shared/nsShmImage.h
widget/shared/nsShmImage.h
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:37c8868e3a08 |
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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * | |
| 3 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef __mozilla_widget_nsShmImage_h__ | |
| 8 #define __mozilla_widget_nsShmImage_h__ | |
| 9 | |
| 10 #include "mozilla/ipc/SharedMemorySysV.h" | |
| 11 | |
| 12 #if defined(MOZ_X11) && defined(MOZ_HAVE_SHAREDMEMORYSYSV) | |
| 13 # define MOZ_HAVE_SHMIMAGE | |
| 14 #endif | |
| 15 | |
| 16 #ifdef MOZ_HAVE_SHMIMAGE | |
| 17 | |
| 18 #include "nsIWidget.h" | |
| 19 #include "gfxTypes.h" | |
| 20 #include "nsAutoPtr.h" | |
| 21 | |
| 22 #include "mozilla/X11Util.h" | |
| 23 #include <X11/Xlib.h> | |
| 24 #include <X11/Xutil.h> | |
| 25 #include <X11/extensions/XShm.h> | |
| 26 | |
| 27 #if defined(MOZ_WIDGET_GTK) | |
| 28 #define DISPLAY gdk_x11_get_default_xdisplay | |
| 29 #elif defined(MOZ_WIDGET_QT) | |
| 30 #define DISPLAY mozilla::DefaultXDisplay | |
| 31 #endif | |
| 32 | |
| 33 class QRect; | |
| 34 class QWindow; | |
| 35 class gfxASurface; | |
| 36 | |
| 37 class nsShmImage { | |
| 38 NS_INLINE_DECL_REFCOUNTING(nsShmImage) | |
| 39 | |
| 40 typedef mozilla::ipc::SharedMemorySysV SharedMemorySysV; | |
| 41 | |
| 42 public: | |
| 43 typedef gfxImageFormat Format; | |
| 44 | |
| 45 static bool UseShm(); | |
| 46 static already_AddRefed<nsShmImage> | |
| 47 Create(const gfxIntSize& aSize, Visual* aVisual, unsigned int aDepth); | |
| 48 static already_AddRefed<gfxASurface> | |
| 49 EnsureShmImage(const gfxIntSize& aSize, Visual* aVisual, unsigned int aDepth, | |
| 50 nsRefPtr<nsShmImage>& aImage); | |
| 51 | |
| 52 ~nsShmImage() { | |
| 53 if (mImage) { | |
| 54 mozilla::FinishX(DISPLAY()); | |
| 55 if (mXAttached) { | |
| 56 XShmDetach(DISPLAY(), &mInfo); | |
| 57 } | |
| 58 XDestroyImage(mImage); | |
| 59 } | |
| 60 } | |
| 61 | |
| 62 already_AddRefed<gfxASurface> AsSurface(); | |
| 63 | |
| 64 #if (MOZ_WIDGET_GTK == 2) | |
| 65 void Put(GdkWindow* aWindow, GdkRectangle* aRects, GdkRectangle* aEnd); | |
| 66 #elif (MOZ_WIDGET_GTK == 3) | |
| 67 void Put(GdkWindow* aWindow, cairo_rectangle_list_t* aRects); | |
| 68 #elif defined(MOZ_WIDGET_QT) | |
| 69 void Put(QWindow* aWindow, QRect& aRect); | |
| 70 #endif | |
| 71 | |
| 72 gfxIntSize Size() const { return mSize; } | |
| 73 | |
| 74 private: | |
| 75 nsShmImage() | |
| 76 : mImage(nullptr) | |
| 77 , mXAttached(false) | |
| 78 { mInfo.shmid = SharedMemorySysV::NULLHandle(); } | |
| 79 | |
| 80 nsRefPtr<SharedMemorySysV> mSegment; | |
| 81 XImage* mImage; | |
| 82 XShmSegmentInfo mInfo; | |
| 83 gfxIntSize mSize; | |
| 84 Format mFormat; | |
| 85 bool mXAttached; | |
| 86 }; | |
| 87 | |
| 88 #endif // MOZ_HAVE_SHMIMAGE | |
| 89 | |
| 90 #endif |
