151 lines
3.9 KiB
C++
151 lines
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; 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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#include "Image.h"
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#include "nsRefreshDriver.h"
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#include "mozilla/TimeStamp.h"
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namespace mozilla {
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namespace image {
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///////////////////////////////////////////////////////////////////////////////
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// Memory Reporting
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///////////////////////////////////////////////////////////////////////////////
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ImageMemoryCounter::ImageMemoryCounter(Image* aImage,
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MallocSizeOf aMallocSizeOf,
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bool aIsUsed)
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: mIsUsed(aIsUsed)
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{
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MOZ_ASSERT(aImage);
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// Extract metadata about the image.
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RefPtr<ImageURL> imageURL(aImage->GetURI());
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if (imageURL) {
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imageURL->GetSpec(mURI);
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}
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int32_t width = 0;
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int32_t height = 0;
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aImage->GetWidth(&width);
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aImage->GetHeight(&height);
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mIntrinsicSize.SizeTo(width, height);
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mType = aImage->GetType();
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// Populate memory counters for source and decoded data.
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mValues.SetSource(aImage->SizeOfSourceWithComputedFallback(aMallocSizeOf));
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aImage->CollectSizeOfSurfaces(mSurfaces, aMallocSizeOf);
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// Compute totals.
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for (const SurfaceMemoryCounter& surfaceCounter : mSurfaces) {
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mValues += surfaceCounter.Values();
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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// Image Base Types
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///////////////////////////////////////////////////////////////////////////////
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// Constructor
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ImageResource::ImageResource(ImageURL* aURI) :
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mURI(aURI),
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mInnerWindowId(0),
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mAnimationConsumers(0),
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mAnimationMode(kNormalAnimMode),
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mInitialized(false),
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mAnimating(false),
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mError(false)
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{ }
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ImageResource::~ImageResource()
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{
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// Ask our ProgressTracker to drop its weak reference to us.
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mProgressTracker->ResetImage();
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}
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void
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ImageResource::IncrementAnimationConsumers()
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{
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MOZ_ASSERT(NS_IsMainThread(), "Main thread only to encourage serialization "
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"with DecrementAnimationConsumers");
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mAnimationConsumers++;
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}
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void
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ImageResource::DecrementAnimationConsumers()
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{
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MOZ_ASSERT(NS_IsMainThread(), "Main thread only to encourage serialization "
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"with IncrementAnimationConsumers");
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MOZ_ASSERT(mAnimationConsumers >= 1,
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"Invalid no. of animation consumers!");
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mAnimationConsumers--;
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}
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nsresult
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ImageResource::GetAnimationModeInternal(uint16_t* aAnimationMode)
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{
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if (mError) {
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return NS_ERROR_FAILURE;
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}
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NS_ENSURE_ARG_POINTER(aAnimationMode);
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*aAnimationMode = mAnimationMode;
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return NS_OK;
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}
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nsresult
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ImageResource::SetAnimationModeInternal(uint16_t aAnimationMode)
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{
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if (mError) {
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return NS_ERROR_FAILURE;
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}
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NS_ASSERTION(aAnimationMode == kNormalAnimMode ||
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aAnimationMode == kDontAnimMode ||
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aAnimationMode == kLoopOnceAnimMode,
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"Wrong Animation Mode is being set!");
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mAnimationMode = aAnimationMode;
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return NS_OK;
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}
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bool
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ImageResource::HadRecentRefresh(const TimeStamp& aTime)
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{
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// Our threshold for "recent" is 1/2 of the default refresh-driver interval.
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// This ensures that we allow for frame rates at least as fast as the
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// refresh driver's default rate.
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static TimeDuration recentThreshold =
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TimeDuration::FromMilliseconds(nsRefreshDriver::DefaultInterval() / 2.0);
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if (!mLastRefreshTime.IsNull() &&
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aTime - mLastRefreshTime < recentThreshold) {
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return true;
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}
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// else, we can proceed with a refresh.
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// But first, update our last refresh time:
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mLastRefreshTime = aTime;
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return false;
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}
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void
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ImageResource::EvaluateAnimation()
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{
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if (!mAnimating && ShouldAnimate()) {
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nsresult rv = StartAnimation();
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mAnimating = NS_SUCCEEDED(rv);
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} else if (mAnimating && !ShouldAnimate()) {
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StopAnimation();
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}
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}
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} // namespace image
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} // namespace mozilla
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