gecko/gfx/thebes/gfxXlibSurface.h

123 lines
4.7 KiB
C++

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Oracle Corporation code.
*
* The Initial Developer of the Original Code is Oracle Corporation.
* Portions created by the Initial Developer are Copyright (C) 2005
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Stuart Parmenter <pavlov@pavlov.net>
* Vladimir Vukicevic <vladimir@pobox.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef GFX_XLIBSURFACE_H
#define GFX_XLIBSURFACE_H
#include "gfxASurface.h"
#include <X11/extensions/Xrender.h>
#include <X11/Xlib.h>
class THEBES_API gfxXlibSurface : public gfxASurface {
public:
// construct a wrapper around the specified drawable with dpy/visual.
// Will use XGetGeometry to query the window/pixmap size.
gfxXlibSurface(Display *dpy, Drawable drawable, Visual *visual);
// construct a wrapper around the specified drawable with dpy/visual,
// and known width/height.
gfxXlibSurface(Display *dpy, Drawable drawable, Visual *visual, const gfxIntSize& size);
// construct a wrapper around the specified drawable with dpy/format,
// and known width/height.
gfxXlibSurface(Screen *screen, Drawable drawable, XRenderPictFormat *format,
const gfxIntSize& size);
gfxXlibSurface(cairo_surface_t *csurf);
// create a new Pixmap and wrapper surface.
// |relatedDrawable| provides a hint to the server for determining whether
// the pixmap should be in video or system memory. It must be on
// |screen| (if specified).
static already_AddRefed<gfxXlibSurface>
Create(Screen *screen, Visual *visual, const gfxIntSize& size,
Drawable relatedDrawable = None);
static already_AddRefed<gfxXlibSurface>
Create(Screen* screen, XRenderPictFormat *format, const gfxIntSize& size,
Drawable relatedDrawable = None);
virtual ~gfxXlibSurface();
virtual already_AddRefed<gfxASurface>
CreateSimilarSurface(gfxContentType aType, const gfxIntSize& aSize);
virtual const gfxIntSize GetSize() const { return mSize; }
Display* XDisplay() { return mDisplay; }
Screen* XScreen();
Drawable XDrawable() { return mDrawable; }
XRenderPictFormat* XRenderFormat();
static int DepthOfVisual(const Screen* screen, const Visual* visual);
static Visual* FindVisual(Screen* screen, gfxImageFormat format);
static XRenderPictFormat *FindRenderFormat(Display *dpy, gfxImageFormat format);
// take ownership of a passed-in Pixmap, calling XFreePixmap on it
// when the gfxXlibSurface is destroyed.
void TakePixmap() {
NS_ASSERTION(!mPixmapTaken, "I already own the Pixmap!");
mPixmapTaken = PR_TRUE;
}
// Release ownership of this surface's Pixmap. This is only valid
// on gfxXlibSurfaces for which the user called TakePixmap(), or
// on those created by a Create() factory method.
Drawable ReleasePixmap() {
NS_ASSERTION(mPixmapTaken, "I don't own the Pixmap!");
mPixmapTaken = PR_FALSE;
return mDrawable;
}
// Find a visual and colormap pair suitable for rendering to this surface.
PRBool GetColormapAndVisual(Colormap* colormap, Visual **visual);
protected:
// if TakePixmap() has been called on this
PRBool mPixmapTaken;
Display *mDisplay;
Drawable mDrawable;
void DoSizeQuery();
gfxIntSize mSize;
};
#endif /* GFX_XLIBSURFACE_H */