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ea68cb4546
The few cases where we still use Xlib most likely benefit little from Xrender. Lets drop the support for it. Differential Revision: https://phabricator.services.mozilla.com/D126970
105 lines
4.0 KiB
C++
105 lines
4.0 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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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/Xlib.h>
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#include "X11UndefineNone.h"
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#include "GLXLibrary.h"
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#include "mozilla/gfx/XlibDisplay.h"
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#include "nsSize.h"
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// Although the dimension parameters in the xCreatePixmapReq wire protocol are
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// 16-bit unsigned integers, the server's CreatePixmap returns BadAlloc if
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// either dimension cannot be represented by a 16-bit *signed* integer.
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#define XLIB_IMAGE_SIDE_SIZE_LIMIT 0x7fff
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class gfxXlibSurface 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,
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const mozilla::gfx::IntSize& size);
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gfxXlibSurface(const std::shared_ptr<mozilla::gfx::XlibDisplay>& dpy,
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Drawable drawable, Visual* visual,
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const mozilla::gfx::IntSize& 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> Create(
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::Screen* screen, Visual* visual, const mozilla::gfx::IntSize& size,
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Drawable relatedDrawable = X11None);
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static already_AddRefed<gfxXlibSurface> Create(
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const std::shared_ptr<mozilla::gfx::XlibDisplay>& display,
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::Screen* screen, Visual* visual, const mozilla::gfx::IntSize& size,
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Drawable relatedDrawable = X11None);
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static cairo_surface_t* CreateCairoSurface(
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::Screen* screen, Visual* visual, const mozilla::gfx::IntSize& size,
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Drawable relatedDrawable = X11None);
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virtual ~gfxXlibSurface();
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void Finish() override;
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const mozilla::gfx::IntSize GetSize() const 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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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 bool GetColormapAndVisual(cairo_surface_t* aXlibSurface,
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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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// 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->get()) >= 60700000 ||
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VendorRelease(mDisplay->get()) < 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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std::shared_ptr<mozilla::gfx::XlibDisplay> mDisplay;
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Drawable mDrawable;
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const mozilla::gfx::IntSize DoSizeQuery();
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};
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#endif /* GFX_XLIBSURFACE_H */
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