зеркало из https://github.com/mozilla/gecko-dev.git
613 строки
16 KiB
C++
613 строки
16 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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#include "nsIMemoryReporter.h"
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#include "nsMemory.h"
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#include "mozilla/ArrayUtils.h"
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#include "mozilla/Base64.h"
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#include "mozilla/CheckedInt.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/MemoryReporting.h"
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#include "nsISupportsImpl.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/gfx/Logging.h"
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#include "mozilla/gfx/HelpersCairo.h"
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#include "gfx2DGlue.h"
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#include "gfxASurface.h"
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#include "gfxContext.h"
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#include "gfxImageSurface.h"
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#include "gfxPlatform.h"
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#include "gfxRect.h"
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#include "cairo.h"
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#include <algorithm>
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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 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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#endif
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#include <stdio.h>
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#include <limits.h>
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#include "imgIEncoder.h"
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#include "nsComponentManagerUtils.h"
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#include "nsISupportsUtils.h"
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#include "nsCOMPtr.h"
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#include "nsServiceManagerUtils.h"
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#include "nsString.h"
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#include "nsIClipboardHelper.h"
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using namespace mozilla;
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using namespace mozilla::gfx;
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static cairo_user_data_key_t gfxasurface_pointer_key;
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gfxASurface::gfxASurface()
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: mSurface(nullptr), mFloatingRefs(0), mBytesRecorded(0),
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mSurfaceValid(false)
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{
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MOZ_COUNT_CTOR(gfxASurface);
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}
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gfxASurface::~gfxASurface()
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{
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RecordMemoryFreed();
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MOZ_COUNT_DTOR(gfxASurface);
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}
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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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}
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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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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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}
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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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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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if (!csurf)
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return nullptr;
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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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if (!csurf)
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return;
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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, const IntSize& aSize)
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{
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RefPtr<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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return result.forget();
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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 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, aSize);
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}
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#endif
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else {
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result = new gfxUnknownSurface(csurf, aSize);
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}
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// fprintf(stderr, "New wrapper for %p -> %p\n", csurf, result);
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return result.forget();
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}
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void
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gfxASurface::Init(cairo_surface_t* surface, bool existingSurface)
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{
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SetSurfaceWrapper(surface, this);
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MOZ_ASSERT(surface, "surface should be a valid pointer");
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mSurface = surface;
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mSurfaceValid = !cairo_surface_status(surface);
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if (!mSurfaceValid) {
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gfxWarning() << "ASurface Init failed with Cairo status " << cairo_surface_status(surface) << " on " << hexa(surface);
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}
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if (existingSurface || !mSurfaceValid) {
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mFloatingRefs = 0;
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} else {
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mFloatingRefs = 1;
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#ifdef MOZ_TREE_CAIRO
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if (cairo_surface_get_content(surface) != CAIRO_CONTENT_COLOR) {
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cairo_surface_set_subpixel_antialiasing(surface, CAIRO_SUBPIXEL_ANTIALIASING_DISABLED);
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}
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#endif
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}
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}
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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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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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if (!mSurfaceValid)
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return;
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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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if (!mSurfaceValid)
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return gfxPoint(0.0, 0.0);
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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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if (!mSurfaceValid)
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return;
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cairo_surface_flush(mSurface);
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gfxPlatform::ClearSourceSurfaceForSurface(const_cast<gfxASurface*>(this));
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}
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void
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gfxASurface::MarkDirty()
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{
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if (!mSurfaceValid)
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return;
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cairo_surface_mark_dirty(mSurface);
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gfxPlatform::ClearSourceSurfaceForSurface(this);
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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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if (!mSurfaceValid)
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return;
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cairo_surface_mark_dirty_rectangle(mSurface,
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(int) r.X(), (int) r.Y(),
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(int) r.Width(), (int) r.Height());
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gfxPlatform::ClearSourceSurfaceForSurface(this);
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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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if (!mSurfaceValid)
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return;
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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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if (!mSurfaceValid)
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return nullptr;
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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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// null surfaces are allowed here
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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 IntSize& aSize)
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{
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if (!mSurface || !mSurfaceValid) {
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return nullptr;
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}
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cairo_surface_t *surface =
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cairo_surface_create_similar(mSurface, cairo_content_t(int(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 nullptr;
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}
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RefPtr<gfxASurface> result = Wrap(surface, aSize);
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cairo_surface_destroy(surface);
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return result.forget();
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}
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already_AddRefed<gfxImageSurface>
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gfxASurface::CopyToARGB32ImageSurface()
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{
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if (!mSurface || !mSurfaceValid) {
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return nullptr;
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}
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const IntSize size = GetSize();
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RefPtr<gfxImageSurface> imgSurface =
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new gfxImageSurface(size, SurfaceFormat::A8R8G8B8_UINT32);
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RefPtr<DrawTarget> dt = gfxPlatform::GetPlatform()->CreateDrawTargetForSurface(imgSurface, IntSize(size.width, size.height));
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RefPtr<SourceSurface> source = gfxPlatform::GetPlatform()->GetSourceSurfaceForSurface(dt, this);
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dt->CopySurface(source, IntRect(0, 0, size.width, size.height), IntPoint());
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return imgSurface.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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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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gfxContentType
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gfxASurface::ContentFromFormat(gfxImageFormat format)
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{
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switch (format) {
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case SurfaceFormat::A8R8G8B8_UINT32:
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return gfxContentType::COLOR_ALPHA;
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case SurfaceFormat::X8R8G8B8_UINT32:
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case SurfaceFormat::R5G6B5_UINT16:
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return gfxContentType::COLOR;
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case SurfaceFormat::A8:
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return gfxContentType::ALPHA;
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case SurfaceFormat::UNKNOWN:
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default:
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return gfxContentType::COLOR;
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}
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}
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int32_t
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gfxASurface::BytePerPixelFromFormat(gfxImageFormat format)
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{
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switch (format) {
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case SurfaceFormat::A8R8G8B8_UINT32:
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case SurfaceFormat::X8R8G8B8_UINT32:
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return 4;
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case SurfaceFormat::R5G6B5_UINT16:
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return 2;
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case SurfaceFormat::A8:
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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 *sDefaultSurfaceDescription =
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"Memory used by gfx surface of the given type.";
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struct SurfaceMemoryReporterAttrs {
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const char *path;
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const char *description;
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};
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static const SurfaceMemoryReporterAttrs sSurfaceMemoryReporterAttrs[] = {
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{"gfx-surface-image", nullptr},
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{"gfx-surface-pdf", nullptr},
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{"gfx-surface-ps", nullptr},
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{"gfx-surface-xlib",
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"Memory used by xlib surfaces to store pixmaps. This memory lives in "
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"the X server's process rather than in this application, so the bytes "
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"accounted for here aren't counted in vsize, resident, explicit, or any of "
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"the other measurements on this page."},
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{"gfx-surface-xcb", nullptr},
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{"gfx-surface-glitz???", nullptr}, // should never be used
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{"gfx-surface-quartz", nullptr},
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{"gfx-surface-win32", nullptr},
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{"gfx-surface-beos", nullptr},
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{"gfx-surface-directfb???", nullptr}, // should never be used
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{"gfx-surface-svg", nullptr},
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{"gfx-surface-os2", nullptr},
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{"gfx-surface-win32printing", nullptr},
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{"gfx-surface-quartzimage", nullptr},
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{"gfx-surface-script", nullptr},
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{"gfx-surface-qpainter", nullptr},
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{"gfx-surface-recording", nullptr},
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{"gfx-surface-vg", nullptr},
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{"gfx-surface-gl", nullptr},
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{"gfx-surface-drm", nullptr},
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{"gfx-surface-tee", nullptr},
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{"gfx-surface-xml", nullptr},
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{"gfx-surface-skia", nullptr},
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{"gfx-surface-subsurface", nullptr},
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};
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static_assert(MOZ_ARRAY_LENGTH(sSurfaceMemoryReporterAttrs) ==
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size_t(gfxSurfaceType::Max), "sSurfaceMemoryReporterAttrs exceeds max capacity");
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static_assert(uint32_t(CAIRO_SURFACE_TYPE_SKIA) ==
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uint32_t(gfxSurfaceType::Skia), "CAIRO_SURFACE_TYPE_SKIA not equal to gfxSurfaceType::Skia");
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/* Surface size memory reporting */
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class SurfaceMemoryReporter final : public nsIMemoryReporter
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{
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~SurfaceMemoryReporter() = default;
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// We can touch this array on several different threads, and we don't
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// want to introduce memory barriers when recording the memory used. To
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// assure dynamic race checkers like TSan that this is OK, we use
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// relaxed memory ordering here.
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static Atomic<size_t, Relaxed> sSurfaceMemoryUsed[size_t(gfxSurfaceType::Max)];
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public:
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static void AdjustUsedMemory(gfxSurfaceType aType, int32_t aBytes)
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{
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// A read-modify-write operation like += would require a memory barrier
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// here, which would defeat the purpose of using relaxed memory
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// ordering. So separate out the read and write operations.
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sSurfaceMemoryUsed[size_t(aType)] = sSurfaceMemoryUsed[size_t(aType)] + aBytes;
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};
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// This memory reporter is sometimes allocated on the compositor thread,
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// but always released on the main thread, so its refcounting needs to be
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// threadsafe.
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NS_DECL_THREADSAFE_ISUPPORTS
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NS_IMETHOD CollectReports(nsIHandleReportCallback *aHandleReport,
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nsISupports *aData, bool aAnonymize) override
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{
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const size_t len = ArrayLength(sSurfaceMemoryReporterAttrs);
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for (size_t i = 0; i < len; i++) {
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int64_t amount = sSurfaceMemoryUsed[i];
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if (amount != 0) {
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const char *path = sSurfaceMemoryReporterAttrs[i].path;
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const char *desc = sSurfaceMemoryReporterAttrs[i].description;
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if (!desc) {
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desc = sDefaultSurfaceDescription;
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}
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aHandleReport->Callback(
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EmptyCString(), nsCString(path), KIND_OTHER, UNITS_BYTES,
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amount, nsCString(desc), aData);
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}
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}
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return NS_OK;
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}
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};
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Atomic<size_t, Relaxed> SurfaceMemoryReporter::sSurfaceMemoryUsed[size_t(gfxSurfaceType::Max)];
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NS_IMPL_ISUPPORTS(SurfaceMemoryReporter, nsIMemoryReporter)
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void
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gfxASurface::RecordMemoryUsedForSurfaceType(gfxSurfaceType aType,
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int32_t aBytes)
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{
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if (int(aType) < 0 || aType >= gfxSurfaceType::Max) {
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NS_WARNING("Invalid type to RecordMemoryUsedForSurfaceType!");
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return;
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}
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static bool registered = false;
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if (!registered) {
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RegisterStrongMemoryReporter(new SurfaceMemoryReporter());
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registered = true;
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}
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SurfaceMemoryReporter::AdjustUsedMemory(aType, aBytes);
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}
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void
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gfxASurface::RecordMemoryUsed(int32_t aBytes)
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{
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RecordMemoryUsedForSurfaceType(GetType(), aBytes);
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mBytesRecorded += aBytes;
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}
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void
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gfxASurface::RecordMemoryFreed()
|
|
{
|
|
if (mBytesRecorded) {
|
|
RecordMemoryUsedForSurfaceType(GetType(), -mBytesRecorded);
|
|
mBytesRecorded = 0;
|
|
}
|
|
}
|
|
|
|
size_t
|
|
gfxASurface::SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const
|
|
{
|
|
// We don't measure mSurface because cairo doesn't allow it.
|
|
return 0;
|
|
}
|
|
|
|
size_t
|
|
gfxASurface::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
|
|
{
|
|
return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
|
|
}
|
|
|
|
/* static */ uint8_t
|
|
gfxASurface::BytesPerPixel(gfxImageFormat aImageFormat)
|
|
{
|
|
switch (aImageFormat) {
|
|
case SurfaceFormat::A8R8G8B8_UINT32:
|
|
return 4;
|
|
case SurfaceFormat::X8R8G8B8_UINT32:
|
|
return 4;
|
|
case SurfaceFormat::R5G6B5_UINT16:
|
|
return 2;
|
|
case SurfaceFormat::A8:
|
|
return 1;
|
|
case SurfaceFormat::UNKNOWN:
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("Not really sure what you want me to say here");
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
void
|
|
gfxASurface::SetOpaqueRect(const gfxRect& aRect)
|
|
{
|
|
if (aRect.IsEmpty()) {
|
|
mOpaqueRect = nullptr;
|
|
} else if (!!mOpaqueRect) {
|
|
*mOpaqueRect = aRect;
|
|
} else {
|
|
mOpaqueRect = MakeUnique<gfxRect>(aRect);
|
|
}
|
|
}
|
|
|
|
/* static */const gfxRect&
|
|
gfxASurface::GetEmptyOpaqueRect()
|
|
{
|
|
static const gfxRect empty(0, 0, 0, 0);
|
|
return empty;
|
|
}
|
|
|
|
const IntSize
|
|
gfxASurface::GetSize() const
|
|
{
|
|
return IntSize(-1, -1);
|
|
}
|
|
|
|
SurfaceFormat
|
|
gfxASurface::GetSurfaceFormat() const
|
|
{
|
|
if (!mSurfaceValid) {
|
|
return SurfaceFormat::UNKNOWN;
|
|
}
|
|
return GfxFormatForCairoSurface(mSurface);
|
|
}
|
|
|
|
already_AddRefed<gfxImageSurface>
|
|
gfxASurface::GetAsImageSurface()
|
|
{
|
|
return nullptr;
|
|
}
|