зеркало из https://github.com/mozilla/pjs.git
570 строки
14 KiB
C++
570 строки
14 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Foundation code.
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*
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* The Initial Developer of the Original Code is Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2006
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Stuart Parmenter <stuart@mozilla.com>
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* Vladimir Vukicevic <vladimir@pobox.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsIMemoryReporter.h"
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#include "nsMemory.h"
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#include "gfxASurface.h"
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#include "gfxImageSurface.h"
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#include "cairo.h"
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#ifdef CAIRO_HAS_WIN32_SURFACE
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#include "gfxWindowsSurface.h"
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#endif
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#ifdef CAIRO_HAS_D2D_SURFACE
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#include "gfxD2DSurface.h"
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#endif
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#ifdef MOZ_X11
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#include "gfxXlibSurface.h"
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#endif
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#ifdef CAIRO_HAS_QUARTZ_SURFACE
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#include "gfxQuartzSurface.h"
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#include "gfxQuartzImageSurface.h"
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#endif
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#ifdef MOZ_DFB
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#include "gfxDirectFBSurface.h"
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#endif
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#if defined(CAIRO_HAS_QT_SURFACE) && defined(MOZ_WIDGET_QT)
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#include "gfxQPainterSurface.h"
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#endif
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#ifdef CAIRO_HAS_DDRAW_SURFACE
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#include "gfxDDrawSurface.h"
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#endif
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#include <stdio.h>
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#include <limits.h>
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static cairo_user_data_key_t gfxasurface_pointer_key;
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// Surfaces use refcounting that's tied to the cairo surface refcnt, to avoid
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// refcount mismatch issues.
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nsrefcnt
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gfxASurface::AddRef(void)
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{
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if (mSurfaceValid) {
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if (mFloatingRefs) {
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// eat a floating ref
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mFloatingRefs--;
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} else {
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cairo_surface_reference(mSurface);
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}
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return (nsrefcnt) cairo_surface_get_reference_count(mSurface);
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} else {
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// the surface isn't valid, but we still need to refcount
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// the gfxASurface
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return ++mFloatingRefs;
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}
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}
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nsrefcnt
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gfxASurface::Release(void)
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{
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if (mSurfaceValid) {
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NS_ASSERTION(mFloatingRefs == 0, "gfxASurface::Release with floating refs still hanging around!");
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// Note that there is a destructor set on user data for mSurface,
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// which will delete this gfxASurface wrapper when the surface's refcount goes
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// out of scope.
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nsrefcnt refcnt = (nsrefcnt) cairo_surface_get_reference_count(mSurface);
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cairo_surface_destroy(mSurface);
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// |this| may not be valid any more, don't use it!
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return --refcnt;
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} else {
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if (--mFloatingRefs == 0) {
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delete this;
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return 0;
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}
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return mFloatingRefs;
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}
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}
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void
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gfxASurface::SurfaceDestroyFunc(void *data) {
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gfxASurface *surf = (gfxASurface*) data;
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// fprintf (stderr, "Deleting wrapper for %p (wrapper: %p)\n", surf->mSurface, data);
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delete surf;
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}
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gfxASurface*
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gfxASurface::GetSurfaceWrapper(cairo_surface_t *csurf)
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{
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return (gfxASurface*) cairo_surface_get_user_data(csurf, &gfxasurface_pointer_key);
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}
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void
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gfxASurface::SetSurfaceWrapper(cairo_surface_t *csurf, gfxASurface *asurf)
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{
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cairo_surface_set_user_data(csurf, &gfxasurface_pointer_key, asurf, SurfaceDestroyFunc);
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}
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already_AddRefed<gfxASurface>
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gfxASurface::Wrap (cairo_surface_t *csurf)
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{
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gfxASurface *result;
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/* Do we already have a wrapper for this surface? */
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result = GetSurfaceWrapper(csurf);
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if (result) {
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// fprintf(stderr, "Existing wrapper for %p -> %p\n", csurf, result);
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NS_ADDREF(result);
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return result;
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}
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/* No wrapper; figure out the surface type and create it */
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cairo_surface_type_t stype = cairo_surface_get_type(csurf);
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if (stype == CAIRO_SURFACE_TYPE_IMAGE) {
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result = new gfxImageSurface(csurf);
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}
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#ifdef CAIRO_HAS_WIN32_SURFACE
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else if (stype == CAIRO_SURFACE_TYPE_WIN32 ||
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stype == CAIRO_SURFACE_TYPE_WIN32_PRINTING) {
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result = new gfxWindowsSurface(csurf);
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}
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#endif
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#ifdef CAIRO_HAS_D2D_SURFACE
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else if (stype == CAIRO_SURFACE_TYPE_D2D) {
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result = new gfxD2DSurface(csurf);
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}
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#endif
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#ifdef MOZ_X11
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else if (stype == CAIRO_SURFACE_TYPE_XLIB) {
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result = new gfxXlibSurface(csurf);
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}
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#endif
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#ifdef CAIRO_HAS_QUARTZ_SURFACE
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else if (stype == CAIRO_SURFACE_TYPE_QUARTZ) {
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result = new gfxQuartzSurface(csurf);
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}
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else if (stype == CAIRO_SURFACE_TYPE_QUARTZ_IMAGE) {
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result = new gfxQuartzImageSurface(csurf);
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}
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#endif
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#ifdef MOZ_DFB
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else if (stype == CAIRO_SURFACE_TYPE_DIRECTFB) {
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result = new gfxDirectFBSurface(csurf);
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}
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#endif
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#if defined(CAIRO_HAS_QT_SURFACE) && defined(MOZ_WIDGET_QT)
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else if (stype == CAIRO_SURFACE_TYPE_QT) {
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result = new gfxQPainterSurface(csurf);
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}
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#endif
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#ifdef CAIRO_HAS_DDRAW_SURFACE
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else if (stype == CAIRO_SURFACE_TYPE_DDRAW) {
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result = new gfxDDrawSurface(csurf);
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}
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#endif
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else {
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result = new gfxUnknownSurface(csurf);
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}
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// fprintf(stderr, "New wrapper for %p -> %p\n", csurf, result);
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NS_ADDREF(result);
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return result;
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}
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void
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gfxASurface::Init(cairo_surface_t* surface, PRBool existingSurface)
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{
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if (cairo_surface_status(surface)) {
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// the surface has an error on it
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mSurfaceValid = PR_FALSE;
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cairo_surface_destroy(surface);
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return;
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}
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SetSurfaceWrapper(surface, this);
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mSurface = surface;
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mSurfaceValid = PR_TRUE;
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if (existingSurface) {
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mFloatingRefs = 0;
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} else {
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mFloatingRefs = 1;
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}
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}
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gfxASurface::gfxSurfaceType
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gfxASurface::GetType() const
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{
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if (!mSurfaceValid)
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return (gfxSurfaceType)-1;
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return (gfxSurfaceType)cairo_surface_get_type(mSurface);
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}
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gfxASurface::gfxContentType
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gfxASurface::GetContentType() const
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{
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if (!mSurfaceValid)
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return (gfxContentType)-1;
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return (gfxContentType)cairo_surface_get_content(mSurface);
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}
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void
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gfxASurface::SetDeviceOffset(const gfxPoint& offset)
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{
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cairo_surface_set_device_offset(mSurface,
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offset.x, offset.y);
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}
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gfxPoint
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gfxASurface::GetDeviceOffset() const
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{
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gfxPoint pt;
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cairo_surface_get_device_offset(mSurface, &pt.x, &pt.y);
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return pt;
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}
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void
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gfxASurface::Flush() const
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{
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cairo_surface_flush(mSurface);
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}
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void
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gfxASurface::MarkDirty()
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{
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cairo_surface_mark_dirty(mSurface);
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}
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void
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gfxASurface::MarkDirty(const gfxRect& r)
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{
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cairo_surface_mark_dirty_rectangle(mSurface,
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(int) r.pos.x, (int) r.pos.y,
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(int) r.size.width, (int) r.size.height);
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}
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void
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gfxASurface::SetData(const cairo_user_data_key_t *key,
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void *user_data,
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thebes_destroy_func_t destroy)
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{
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cairo_surface_set_user_data(mSurface, key, user_data, destroy);
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}
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void *
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gfxASurface::GetData(const cairo_user_data_key_t *key)
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{
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return cairo_surface_get_user_data(mSurface, key);
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}
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void
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gfxASurface::Finish()
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{
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cairo_surface_finish(mSurface);
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}
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already_AddRefed<gfxASurface>
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gfxASurface::CreateSimilarSurface(gfxContentType aContent,
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const gfxIntSize& aSize)
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{
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if (!mSurface || !mSurfaceValid) {
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return nsnull;
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}
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cairo_surface_t *surface =
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cairo_surface_create_similar(mSurface, cairo_content_t(aContent),
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aSize.width, aSize.height);
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if (cairo_surface_status(surface)) {
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cairo_surface_destroy(surface);
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return nsnull;
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}
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nsRefPtr<gfxASurface> result = Wrap(surface);
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cairo_surface_destroy(surface);
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return result.forget();
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}
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int
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gfxASurface::CairoStatus()
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{
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if (!mSurfaceValid)
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return -1;
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return cairo_surface_status(mSurface);
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}
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/* static */
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PRBool
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gfxASurface::CheckSurfaceSize(const gfxIntSize& sz, PRInt32 limit)
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{
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if (sz.width < 0 || sz.height < 0) {
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NS_WARNING("Surface width or height < 0!");
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return PR_FALSE;
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}
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#if defined(XP_MACOSX)
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// CoreGraphics is limited to images < 32K in *height*, so clamp all surfaces on the Mac to that height
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if (sz.height > SHRT_MAX) {
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NS_WARNING("Surface size too large (would overflow)!");
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return PR_FALSE;
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}
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#endif
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// check to make sure we don't overflow a 32-bit
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PRInt32 tmp = sz.width * sz.height;
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if (tmp && tmp / sz.height != sz.width) {
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NS_WARNING("Surface size too large (would overflow)!");
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return PR_FALSE;
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}
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// always assume 4-byte stride
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tmp = tmp * 4;
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if (tmp && tmp / 4 != sz.width * sz.height) {
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NS_WARNING("Surface size too large (would overflow)!");
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return PR_FALSE;
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}
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// reject images with sides bigger than limit
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if (limit &&
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(sz.width > limit || sz.height > limit))
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return PR_FALSE;
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return PR_TRUE;
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}
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nsresult
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gfxASurface::BeginPrinting(const nsAString& aTitle, const nsAString& aPrintToFileName)
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{
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return NS_OK;
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}
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nsresult
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gfxASurface::EndPrinting()
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{
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return NS_OK;
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}
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nsresult
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gfxASurface::AbortPrinting()
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{
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return NS_OK;
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}
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nsresult
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gfxASurface::BeginPage()
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{
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return NS_OK;
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}
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nsresult
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gfxASurface::EndPage()
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{
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return NS_OK;
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}
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gfxASurface::gfxContentType
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gfxASurface::ContentFromFormat(gfxImageFormat format)
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{
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switch (format) {
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case ImageFormatARGB32:
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return CONTENT_COLOR_ALPHA;
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case ImageFormatRGB24:
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case ImageFormatRGB16_565:
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return CONTENT_COLOR;
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case ImageFormatA8:
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case ImageFormatA1:
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return CONTENT_ALPHA;
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case ImageFormatUnknown:
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default:
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return CONTENT_COLOR;
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}
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}
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gfxASurface::gfxImageFormat
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gfxASurface::FormatFromContent(gfxASurface::gfxContentType type)
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{
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switch (type) {
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case CONTENT_COLOR_ALPHA:
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return ImageFormatARGB32;
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case CONTENT_ALPHA:
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return ImageFormatA8;
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case CONTENT_COLOR:
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default:
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return ImageFormatRGB24;
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}
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}
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PRInt32
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gfxASurface::BytePerPixelFromFormat(gfxImageFormat format)
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{
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switch (format) {
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case ImageFormatARGB32:
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case ImageFormatRGB24:
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return 4;
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case ImageFormatRGB16_565:
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return 2;
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case ImageFormatA8:
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return 1;
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default:
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NS_WARNING("Unknown byte per pixel value for Image format");
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}
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return 0;
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}
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/** Memory reporting **/
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static const char *sSurfaceNamesForSurfaceType[] = {
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"gfx/surface/image",
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"gfx/surface/pdf",
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"gfx/surface/ps",
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"gfx/surface/xlib",
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"gfx/surface/xcb",
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"gfx/surface/glitz",
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"gfx/surface/quartz",
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"gfx/surface/win32",
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"gfx/surface/beos",
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"gfx/surface/directfb",
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"gfx/surface/svg",
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"gfx/surface/os2",
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"gfx/surface/win32printing",
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"gfx/surface/quartzimage",
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"gfx/surface/script",
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"gfx/surface/qpainter",
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"gfx/surface/recording",
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"gfx/surface/vg",
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"gfx/surface/gl",
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"gfx/surface/drm",
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"gfx/surface/tee",
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"gfx/surface/xml",
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"gfx/surface/skia",
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"gfx/surface/ddraw",
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"gfx/surface/d2d"
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};
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PR_STATIC_ASSERT(NS_ARRAY_LENGTH(sSurfaceNamesForSurfaceType) == gfxASurface::SurfaceTypeMax);
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#ifdef CAIRO_HAS_D2D_SURFACE
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PR_STATIC_ASSERT(CAIRO_SURFACE_TYPE_D2D == gfxASurface::SurfaceTypeD2D);
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#endif
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PR_STATIC_ASSERT(CAIRO_SURFACE_TYPE_SKIA == gfxASurface::SurfaceTypeSkia);
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static const char *
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SurfaceMemoryReporterPathForType(gfxASurface::gfxSurfaceType aType)
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{
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if (aType < 0 ||
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aType >= gfxASurface::SurfaceTypeMax)
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return "gfx/surface/unknown";
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return sSurfaceNamesForSurfaceType[aType];
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}
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/* Surface size memory reporting */
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static nsIMemoryReporter *gSurfaceMemoryReporters[gfxASurface::SurfaceTypeMax] = { 0 };
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static PRInt64 gSurfaceMemoryUsed[gfxASurface::SurfaceTypeMax] = { 0 };
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class SurfaceMemoryReporter :
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public nsIMemoryReporter
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{
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public:
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SurfaceMemoryReporter(gfxASurface::gfxSurfaceType aType)
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: mType(aType)
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{ }
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NS_DECL_ISUPPORTS
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NS_IMETHOD GetPath(char **memoryPath) {
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*memoryPath = strdup(SurfaceMemoryReporterPathForType(mType));
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return NS_OK;
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}
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NS_IMETHOD GetDescription(char **desc) {
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*desc = strdup("Memory used by gfx surface of given type.");
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return NS_OK;
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}
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NS_IMETHOD GetMemoryUsed(PRInt64 *memoryUsed) {
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*memoryUsed = gSurfaceMemoryUsed[mType];
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return NS_OK;
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}
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gfxASurface::gfxSurfaceType mType;
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};
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NS_IMPL_ISUPPORTS1(SurfaceMemoryReporter, nsIMemoryReporter)
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void
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gfxASurface::RecordMemoryUsedForSurfaceType(gfxASurface::gfxSurfaceType aType,
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PRInt32 aBytes)
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{
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if (aType < 0 || aType >= SurfaceTypeMax) {
|
|
NS_WARNING("Invalid type to RecordMemoryUsedForSurfaceType!");
|
|
return;
|
|
}
|
|
|
|
if (gSurfaceMemoryReporters[aType] == 0) {
|
|
gSurfaceMemoryReporters[aType] = new SurfaceMemoryReporter(aType);
|
|
NS_RegisterMemoryReporter(gSurfaceMemoryReporters[aType]);
|
|
}
|
|
|
|
gSurfaceMemoryUsed[aType] += aBytes;
|
|
}
|
|
|
|
void
|
|
gfxASurface::RecordMemoryUsed(PRInt32 aBytes)
|
|
{
|
|
RecordMemoryUsedForSurfaceType(GetType(), aBytes);
|
|
mBytesRecorded += aBytes;
|
|
}
|
|
|
|
void
|
|
gfxASurface::RecordMemoryFreed()
|
|
{
|
|
if (mBytesRecorded) {
|
|
RecordMemoryUsedForSurfaceType(GetType(), -mBytesRecorded);
|
|
mBytesRecorded = 0;
|
|
}
|
|
}
|