Quelle Image.cpp Sprache: C

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "Image.h"

#include "imgRequest.h"
#include "WebRenderImageProvider.h"
#include "nsIObserverService.h"
#include "nsRefreshDriver.h"
#include "nsContentUtils.h"
#include "mozilla/Atomics.h"
#include "mozilla/gfx/Point.h"
#include "mozilla/gfx/Rect.h"
#include "mozilla/gfx/SourceSurfaceRawData.h"
#include "mozilla/Services.h"
#include "mozilla/SizeOfState.h"
#include "mozilla/TimeStamp.h"
// for Tie
#include "mozilla/layers/SharedSurfacesChild.h"

namespace mozilla {
namespace image {

WebRenderImageProvider::WebRenderImageProvider(const ImageResource* aImage)
    : mProviderId(aImage->GetImageProviderId()) {}

/* static */ ImageProviderId WebRenderImageProvider::AllocateProviderId() {
  // Callable on all threads.
  static Atomic<ImageProviderId> sProviderId(0u);
  return ++sProviderId;
}

///////////////////////////////////////////////////////////////////////////////
// Memory Reporting
///////////////////////////////////////////////////////////////////////////////

ImageMemoryCounter::ImageMemoryCounter(imgRequest* aRequest,
                                       SizeOfState& aState, bool aIsUsed)
    : mProgress(UINT32_MAX),
      mType(UINT16_MAX),
      mIsUsed(aIsUsed),
      mHasError(false),
      mValidating(false) {
  MOZ_ASSERT(aRequest);

  // We don't have the image object yet, but we can get some information.
  nsCOMPtr<nsIURI> imageURL;
  nsresult rv = aRequest->GetURI(getter_AddRefs(imageURL));
  if (NS_SUCCEEDED(rv) && imageURL) {
    imageURL->GetSpec(mURI);
  }

  mType = imgIContainer::TYPE_REQUEST;
  mHasError = NS_FAILED(aRequest->GetImageErrorCode());
  mValidating = !!aRequest->GetValidator();

  RefPtr<ProgressTracker> tracker = aRequest->GetProgressTracker();
  if (tracker) {
    mProgress = tracker->GetProgress();
  }
}

ImageMemoryCounter::ImageMemoryCounter(imgRequest* aRequest, Image* aImage,
                                       SizeOfState& aState, bool aIsUsed)
    : mProgress(UINT32_MAX),
      mType(UINT16_MAX),
      mIsUsed(aIsUsed),
      mHasError(false),
      mValidating(false) {
  MOZ_ASSERT(aRequest);
  MOZ_ASSERT(aImage);

  // Extract metadata about the image.
  nsCOMPtr<nsIURI> imageURL(aImage->GetURI());
  if (imageURL) {
    imageURL->GetSpec(mURI);
  }

  int32_t width = 0;
  int32_t height = 0;
  aImage->GetWidth(&width);
  aImage->GetHeight(&height);
  mIntrinsicSize.SizeTo(width, height);

  mType = aImage->GetType();
  mHasError = aImage->HasError();
  mValidating = !!aRequest->GetValidator();

  RefPtr<ProgressTracker> tracker = aImage->GetProgressTracker();
  if (tracker) {
    mProgress = tracker->GetProgress();
  }

  // Populate memory counters for source and decoded data.
  mValues.SetSource(aImage->SizeOfSourceWithComputedFallback(aState));
  aImage->CollectSizeOfSurfaces(mSurfaces, aState.mMallocSizeOf);

  // Compute totals.
  for (const SurfaceMemoryCounter& surfaceCounter : mSurfaces) {
    mValues += surfaceCounter.Values();
  }
}

///////////////////////////////////////////////////////////////////////////////
// Image Base Types
///////////////////////////////////////////////////////////////////////////////

bool ImageResource::GetSpecTruncatedTo1k(nsCString& aSpec) const {
  static const size_t sMaxTruncatedLength = 1024;

  mURI->GetSpec(aSpec);
  if (sMaxTruncatedLength >= aSpec.Length()) {
    return true;
  }

  aSpec.Truncate(sMaxTruncatedLength);
  return false;
}

void ImageResource::CollectSizeOfSurfaces(
    nsTArray<SurfaceMemoryCounter>& aCounters,
    MallocSizeOf aMallocSizeOf) const {
  SurfaceCache::CollectSizeOfSurfaces(ImageKey(this), aCounters, aMallocSizeOf);
}

// Constructor
ImageResource::ImageResource(nsIURI* aURI)
    : mURI(aURI),
      mInnerWindowId(0),
      mAnimationConsumers(0),
      mAnimationMode(kNormalAnimMode),
      mInitialized(false),
      mAnimating(false),
      mError(false),
      mProviderId(WebRenderImageProvider::AllocateProviderId()) {}

ImageResource::~ImageResource() {
  // Ask our ProgressTracker to drop its weak reference to us.
  mProgressTracker->ResetImage();
}

void ImageResource::IncrementAnimationConsumers() {
  MOZ_ASSERT(NS_IsMainThread(),
             "Main thread only to encourage serialization "
             "with DecrementAnimationConsumers");
  mAnimationConsumers++;
}

void ImageResource::DecrementAnimationConsumers() {
  MOZ_ASSERT(NS_IsMainThread(),
             "Main thread only to encourage serialization "
             "with IncrementAnimationConsumers");
  MOZ_ASSERT(mAnimationConsumers >= 1, "Invalid no. of animation consumers!");
  mAnimationConsumers--;
}

nsresult ImageResource::GetAnimationModeInternal(uint16_t* aAnimationMode) {
  if (mError) {
    return NS_ERROR_FAILURE;
  }

  NS_ENSURE_ARG_POINTER(aAnimationMode);

  *aAnimationMode = mAnimationMode;
  return NS_OK;
}

nsresult ImageResource::SetAnimationModeInternal(uint16_t aAnimationMode) {
  if (mError) {
    return NS_ERROR_FAILURE;
  }

  NS_ASSERTION(aAnimationMode == kNormalAnimMode ||
                   aAnimationMode == kDontAnimMode ||
                   aAnimationMode == kLoopOnceAnimMode,
               "Wrong Animation Mode is being set!");

  mAnimationMode = aAnimationMode;

  return NS_OK;
}

bool ImageResource::HadRecentRefresh(const TimeStamp& aTime) {
  // Our threshold for "recent" is 1/2 of the default refresh-driver interval.
  // This ensures that we allow for frame rates at least as fast as the
  // refresh driver's default rate.
  static TimeDuration recentThreshold =
      TimeDuration::FromMilliseconds(nsRefreshDriver::DefaultInterval() / 2.0);

  if (!mLastRefreshTime.IsNull() &&
      aTime - mLastRefreshTime < recentThreshold) {
    return true;
  }

  // else, we can proceed with a refresh.
  // But first, update our last refresh time:
  mLastRefreshTime = aTime;
  return false;
}

void ImageResource::EvaluateAnimation() {
  if (!mAnimating && ShouldAnimate()) {
    nsresult rv = StartAnimation();
    mAnimating = NS_SUCCEEDED(rv);
  } else if (mAnimating && !ShouldAnimate()) {
    StopAnimation();
  }
}

void ImageResource::SendOnUnlockedDraw(uint32_t aFlags) {
  if (!mProgressTracker) {
    return;
  }

  if (!(aFlags & FLAG_ASYNC_NOTIFY)) {
    mProgressTracker->OnUnlockedDraw();
  } else {
    NotNull<RefPtr<ImageResource>> image = WrapNotNull(this);
    nsCOMPtr<nsIEventTarget> eventTarget = GetMainThreadSerialEventTarget();
    nsCOMPtr<nsIRunnable> ev = NS_NewRunnableFunction(
        "image::ImageResource::SendOnUnlockedDraw", [=]() -> void {
          RefPtr<ProgressTracker> tracker = image->GetProgressTracker();
          if (tracker) {
            tracker->OnUnlockedDraw();
          }
        });
    eventTarget->Dispatch(CreateRenderBlockingRunnable(ev.forget()),
                          NS_DISPATCH_NORMAL);
  }
}

#ifdef DEBUG
void ImageResource::NotifyDrawingObservers() {
  if (!mURI || !NS_IsMainThread()) {
    return;
  }

  if (!mURI->SchemeIs("resource") && !mURI->SchemeIs("chrome")) {
    return;
  }

  // Record the image drawing for startup performance testing.
  nsCOMPtr<nsIURI> uri = mURI;
  nsContentUtils::AddScriptRunner(NS_NewRunnableFunction(
      "image::ImageResource::NotifyDrawingObservers", [uri]() {
        nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
        NS_WARNING_ASSERTION(obs, "Can't get an observer service handle");
        if (obs) {
          nsAutoCString spec;
          uri->GetSpec(spec);
          obs->NotifyObservers(nullptr, "image-drawing",
                               NS_ConvertUTF8toUTF16(spec).get());
        }
      }));
}
#endif

}  // namespace image
}  // namespace mozilla

quality97%

¤ Dauer der Verarbeitung: 0.13 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.