зеркало из https://github.com/mozilla/gecko-dev.git
117 строки
4.3 KiB
C++
117 строки
4.3 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GFX_XLIBSURFACE_H
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#define GFX_XLIBSURFACE_H
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#include "gfxASurface.h"
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#include <X11/extensions/Xrender.h>
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#include <X11/Xlib.h>
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#if defined(GL_PROVIDER_GLX)
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#include "GLXLibrary.h"
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#endif
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#include "nsSize.h"
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class gfxXlibSurface MOZ_FINAL : public gfxASurface {
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public:
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// construct a wrapper around the specified drawable with dpy/visual.
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// Will use XGetGeometry to query the window/pixmap size.
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gfxXlibSurface(Display *dpy, Drawable drawable, Visual *visual);
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// construct a wrapper around the specified drawable with dpy/visual,
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// and known width/height.
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gfxXlibSurface(Display *dpy, Drawable drawable, Visual *visual, const gfxIntSize& size);
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// construct a wrapper around the specified drawable with dpy/format,
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// and known width/height.
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gfxXlibSurface(Screen *screen, Drawable drawable, XRenderPictFormat *format,
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const gfxIntSize& size);
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explicit gfxXlibSurface(cairo_surface_t *csurf);
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// create a new Pixmap and wrapper surface.
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// |relatedDrawable| provides a hint to the server for determining whether
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// the pixmap should be in video or system memory. It must be on
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// |screen| (if specified).
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static already_AddRefed<gfxXlibSurface>
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Create(Screen *screen, Visual *visual, const gfxIntSize& size,
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Drawable relatedDrawable = None);
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static cairo_surface_t *
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CreateCairoSurface(Screen *screen, Visual *visual, const gfxIntSize& size,
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Drawable relatedDrawable = None);
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static already_AddRefed<gfxXlibSurface>
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Create(Screen* screen, XRenderPictFormat *format, const gfxIntSize& size,
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Drawable relatedDrawable = None);
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virtual ~gfxXlibSurface();
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virtual already_AddRefed<gfxASurface>
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CreateSimilarSurface(gfxContentType aType,
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const gfxIntSize& aSize) MOZ_OVERRIDE;
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virtual void Finish() MOZ_OVERRIDE;
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virtual const gfxIntSize GetSize() const MOZ_OVERRIDE;
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Display* XDisplay() { return mDisplay; }
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Screen* XScreen();
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Drawable XDrawable() { return mDrawable; }
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XRenderPictFormat* XRenderFormat();
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static int DepthOfVisual(const Screen* screen, const Visual* visual);
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static Visual* FindVisual(Screen* screen, gfxImageFormat format);
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static XRenderPictFormat *FindRenderFormat(Display *dpy, gfxImageFormat format);
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static bool GetColormapAndVisual(cairo_surface_t* aXlibSurface, Colormap* colormap, Visual **visual);
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// take ownership of a passed-in Pixmap, calling XFreePixmap on it
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// when the gfxXlibSurface is destroyed.
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void TakePixmap();
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// Release ownership of this surface's Pixmap. This is only valid
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// on gfxXlibSurfaces for which the user called TakePixmap(), or
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// on those created by a Create() factory method.
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Drawable ReleasePixmap();
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// Find a visual and colormap pair suitable for rendering to this surface.
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bool GetColormapAndVisual(Colormap* colormap, Visual **visual);
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// This surface is a wrapper around X pixmaps, which are stored in the X
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// server, not the main application.
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virtual gfxMemoryLocation GetMemoryLocation() const MOZ_OVERRIDE;
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#if defined(GL_PROVIDER_GLX)
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GLXPixmap GetGLXPixmap();
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#endif
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// Return true if cairo will take its slow path when this surface is used
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// in a pattern with EXTEND_PAD. As a workaround for XRender's RepeatPad
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// not being implemented correctly on old X servers, cairo avoids XRender
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// and instead reads back to perform EXTEND_PAD with pixman. Cairo does
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// this for servers older than xorg-server 1.7.
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bool IsPadSlow() {
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// The test here matches that for buggy_pad_reflect in
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// _cairo_xlib_device_create.
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return VendorRelease(mDisplay) >= 60700000 ||
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VendorRelease(mDisplay) < 10699000;
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}
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protected:
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// if TakePixmap() has been called on this
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bool mPixmapTaken;
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Display *mDisplay;
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Drawable mDrawable;
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const gfxIntSize DoSizeQuery();
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#if defined(GL_PROVIDER_GLX)
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GLXPixmap mGLXPixmap;
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#endif
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};
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#endif /* GFX_XLIBSURFACE_H */
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