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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 "FrozenImage.h"
namespace mozilla {
using namespace gfx;
using layers::ImageContainer;
namespace image {
void FrozenImage::IncrementAnimationConsumers() {
// Do nothing. This will prevent animation from starting if there are no other
// instances of this image.
}
void FrozenImage::DecrementAnimationConsumers() {
// Do nothing.
}
NS_IMETHODIMP
FrozenImage::GetAnimated(bool* aAnimated) {
bool dummy;
nsresult rv = InnerImage()->GetAnimated(&dummy);
if (NS_SUCCEEDED(rv)) {
*aAnimated = false;
}
return rv;
}
NS_IMETHODIMP_(already_AddRefed<SourceSurface>)
FrozenImage::GetFrame(uint32_t aWhichFrame, uint32_t aFlags) {
return InnerImage()->GetFrame(FRAME_FIRST, aFlags);
}
NS_IMETHODIMP_(already_AddRefed<SourceSurface>)
FrozenImage::GetFrameAtSize(const IntSize& aSize, uint32_t aWhichFrame,
uint32_t aFlags) {
return InnerImage()->GetFrameAtSize(aSize, FRAME_FIRST, aFlags);
}
bool FrozenImage::IsNonAnimated() const {
// We usually don't create frozen images for non-animated images, but it might
// happen if we don't have enough data at the time of the creation to
// determine whether the image is actually animated.
bool animated = false;
return NS_SUCCEEDED(InnerImage()->GetAnimated(&animated)) && !animated;
}
NS_IMETHODIMP_(bool)
FrozenImage::IsImageContainerAvailable(WindowRenderer* aRenderer,
uint32_t aFlags) {
if (IsNonAnimated()) {
return InnerImage()->IsImageContainerAvailable(aRenderer, aFlags);
}
return false;
}
NS_IMETHODIMP_(ImgDrawResult)
FrozenImage::GetImageProvider(WindowRenderer* aRenderer,
const gfx::IntSize& aSize,
const Maybe<SVGImageContext>& aSVGContext,
const Maybe<ImageIntRegion>& aRegion,
uint32_t aFlags,
WebRenderImageProvider** aProvider) {
if (IsNonAnimated()) {
return InnerImage()->GetImageProvider(aRenderer, aSize, aSVGContext,
aRegion, aFlags, aProvider);
}
// XXX(seth): GetImageContainer does not currently support anything but the
// current frame. We work around this by always returning null, but if it ever
// turns out that FrozenImage is widely used on codepaths that can actually
// benefit from GetImageContainer, it would be a good idea to fix that method
// for performance reasons.
return ImgDrawResult::NOT_SUPPORTED;
}
NS_IMETHODIMP_(ImgDrawResult)
FrozenImage::Draw(gfxContext* aContext, const nsIntSize& aSize,
const ImageRegion& aRegion,
uint32_t /* aWhichFrame - ignored */,
SamplingFilter aSamplingFilter,
const Maybe<SVGImageContext>& aSVGContext, uint32_t aFlags,
float aOpacity) {
return InnerImage()->Draw(aContext, aSize, aRegion, FRAME_FIRST,
aSamplingFilter, aSVGContext, aFlags, aOpacity);
}
NS_IMETHODIMP
FrozenImage::StartDecoding(uint32_t aFlags, uint32_t aWhichFrame) {
return InnerImage()->StartDecoding(aFlags, FRAME_FIRST);
}
bool FrozenImage::StartDecodingWithResult(uint32_t aFlags,
uint32_t aWhichFrame) {
return InnerImage()->StartDecodingWithResult(aFlags, FRAME_FIRST);
}
imgIContainer::DecodeResult FrozenImage::RequestDecodeWithResult(
uint32_t aFlags, uint32_t aWhichFrame) {
return InnerImage()->RequestDecodeWithResult(aFlags, FRAME_FIRST);
}
NS_IMETHODIMP
FrozenImage::RequestDecodeForSize(const nsIntSize& aSize, uint32_t aFlags,
uint32_t aWhichFrame) {
return InnerImage()->RequestDecodeForSize(aSize, aFlags, FRAME_FIRST);
}
NS_IMETHODIMP_(void)
FrozenImage::RequestRefresh(const TimeStamp& aTime) {
// Do nothing.
}
NS_IMETHODIMP
FrozenImage::GetAnimationMode(uint16_t* aAnimationMode) {
*aAnimationMode = kNormalAnimMode;
return NS_OK;
}
NS_IMETHODIMP
FrozenImage::SetAnimationMode(uint16_t aAnimationMode) {
// Do nothing.
return NS_OK;
}
NS_IMETHODIMP
FrozenImage::ResetAnimation() {
// Do nothing.
return NS_OK;
}
NS_IMETHODIMP_(float)
FrozenImage::GetFrameIndex(uint32_t aWhichFrame) {
MOZ_ASSERT(aWhichFrame <= FRAME_MAX_VALUE, "Invalid argument");
return 0;
}
} // namespace image
} // namespace mozilla