Revision 7b5be43f0e9a6df4cc6679b3e7d15efb7f439369 authored by ffxbld on 04 May 2015, 19:30:17 UTC, committed by ffxbld on 04 May 2015, 19:30:17 UTC
--HG-- branch : GECKO3170esr_2015050415_RELBRANCH
1 parent fe3239a
FrameSequence.cpp
/* -*- 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 "FrameSequence.h"
using namespace mozilla;
using namespace mozilla::image;
namespace mozilla {
namespace image {
FrameSequence::~FrameSequence()
{
ClearFrames();
}
const FrameDataPair&
FrameSequence::GetFrame(uint32_t framenum) const
{
if (framenum >= mFrames.Length()) {
static FrameDataPair empty;
return empty;
}
return mFrames[framenum];
}
uint32_t
FrameSequence::GetNumFrames() const
{
return mFrames.Length();
}
void
FrameSequence::RemoveFrame(uint32_t framenum)
{
NS_ABORT_IF_FALSE(framenum < mFrames.Length(), "Deleting invalid frame!");
mFrames.RemoveElementAt(framenum);
}
void
FrameSequence::ClearFrames()
{
// Since FrameDataPair holds an nsAutoPtr to its frame, clearing the mFrames
// array also deletes all the frames.
mFrames.Clear();
}
void
FrameSequence::InsertFrame(uint32_t framenum, imgFrame* aFrame)
{
NS_ABORT_IF_FALSE(framenum <= mFrames.Length(), "Inserting invalid frame!");
mFrames.InsertElementAt(framenum, aFrame);
if (GetNumFrames() > 1) {
// If we're creating our second element, we now know we're animated.
// Therefore, we need to lock the first frame too.
if (GetNumFrames() == 2) {
mFrames[0].LockAndGetData();
}
// Whenever we have more than one frame, we always lock *all* our frames
// so we have all the image data pointers.
mFrames[framenum].LockAndGetData();
}
}
imgFrame*
FrameSequence::SwapFrame(uint32_t framenum, imgFrame* aFrame)
{
NS_ABORT_IF_FALSE(framenum < mFrames.Length(), "Swapping invalid frame!");
FrameDataPair ret;
// Steal the imgFrame.
if (framenum < mFrames.Length()) {
ret = mFrames[framenum];
}
if (aFrame) {
mFrames.ReplaceElementAt(framenum, aFrame);
} else {
mFrames.RemoveElementAt(framenum);
}
return ret.Forget();
}
size_t
FrameSequence::SizeOfDecodedWithComputedFallbackIfHeap(gfxMemoryLocation aLocation,
MallocSizeOf aMallocSizeOf) const
{
size_t n = 0;
for (uint32_t i = 0; i < mFrames.Length(); ++i) {
imgFrame* frame = mFrames.SafeElementAt(i, FrameDataPair());
NS_ABORT_IF_FALSE(frame, "Null frame in frame array!");
n += frame->SizeOfExcludingThisWithComputedFallbackIfHeap(aLocation, aMallocSizeOf);
}
return n;
}
} // namespace image
} // namespace mozilla
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