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/* -*- 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 "nsRefreshDriver.h"
#include "mozilla/TimeStamp.h"
namespace mozilla {
namespace image {
///////////////////////////////////////////////////////////////////////////////
// Memory Reporting
///////////////////////////////////////////////////////////////////////////////
ImageMemoryCounter::ImageMemoryCounter(Image* aImage,
MallocSizeOf aMallocSizeOf,
bool aIsUsed)
: mIsUsed(aIsUsed)
{
MOZ_ASSERT(aImage);
// Extract metadata about the image.
RefPtr<ImageURL> 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();
// Populate memory counters for source and decoded data.
mValues.SetSource(aImage->SizeOfSourceWithComputedFallback(aMallocSizeOf));
aImage->CollectSizeOfSurfaces(mSurfaces, aMallocSizeOf);
// Compute totals.
for (const SurfaceMemoryCounter& surfaceCounter : mSurfaces) {
mValues += surfaceCounter.Values();
}
}
///////////////////////////////////////////////////////////////////////////////
// Image Base Types
///////////////////////////////////////////////////////////////////////////////
// Constructor
ImageResource::ImageResource(ImageURL* aURI) :
mURI(aURI),
mInnerWindowId(0),
mAnimationConsumers(0),
mAnimationMode(kNormalAnimMode),
mInitialized(false),
mAnimating(false),
mError(false)
{ }
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();
}
}
} // namespace image
} // namespace mozilla
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