mirror of
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311 lines
9.1 KiB
C++
311 lines
9.1 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 "DynamicImage.h"
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#include "gfxContext.h"
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#include "gfxPlatform.h"
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#include "gfxUtils.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/gfx/Logging.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/SVGImageContext.h"
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#include "ImageRegion.h"
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#include "Orientation.h"
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#include "mozilla/MemoryReporting.h"
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using namespace mozilla;
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using namespace mozilla::gfx;
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using mozilla::layers::ImageContainer;
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using mozilla::layers::LayerManager;
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namespace mozilla {
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namespace image {
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// Inherited methods from Image.
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already_AddRefed<ProgressTracker> DynamicImage::GetProgressTracker() {
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return nullptr;
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}
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size_t DynamicImage::SizeOfSourceWithComputedFallback(
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SizeOfState& aState) const {
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return 0;
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}
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void DynamicImage::CollectSizeOfSurfaces(
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nsTArray<SurfaceMemoryCounter>& aCounters,
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MallocSizeOf aMallocSizeOf) const {
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// We can't report anything useful because gfxDrawable doesn't expose this
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// information.
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}
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void DynamicImage::IncrementAnimationConsumers() {}
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void DynamicImage::DecrementAnimationConsumers() {}
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#ifdef DEBUG
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uint32_t DynamicImage::GetAnimationConsumers() { return 0; }
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#endif
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nsresult DynamicImage::OnImageDataAvailable(nsIRequest* aRequest,
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nsISupports* aContext,
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nsIInputStream* aInStr,
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uint64_t aSourceOffset,
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uint32_t aCount) {
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return NS_OK;
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}
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nsresult DynamicImage::OnImageDataComplete(nsIRequest* aRequest,
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nsISupports* aContext,
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nsresult aStatus, bool aLastPart) {
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return NS_OK;
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}
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void DynamicImage::OnSurfaceDiscarded(const SurfaceKey& aSurfaceKey) {}
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void DynamicImage::SetInnerWindowID(uint64_t aInnerWindowId) {}
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uint64_t DynamicImage::InnerWindowID() const { return 0; }
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bool DynamicImage::HasError() { return !mDrawable; }
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void DynamicImage::SetHasError() {}
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nsIURI* DynamicImage::GetURI() const { return nullptr; }
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// Methods inherited from XPCOM interfaces.
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NS_IMPL_ISUPPORTS(DynamicImage, imgIContainer)
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NS_IMETHODIMP
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DynamicImage::GetWidth(int32_t* aWidth) {
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*aWidth = mDrawable->Size().width;
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return NS_OK;
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}
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NS_IMETHODIMP
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DynamicImage::GetHeight(int32_t* aHeight) {
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*aHeight = mDrawable->Size().height;
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return NS_OK;
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}
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nsresult DynamicImage::GetNativeSizes(nsTArray<IntSize>& aNativeSizes) const {
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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size_t DynamicImage::GetNativeSizesLength() const { return 0; }
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NS_IMETHODIMP
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DynamicImage::GetIntrinsicSize(nsSize* aSize) {
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IntSize intSize(mDrawable->Size());
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*aSize = nsSize(intSize.width, intSize.height);
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return NS_OK;
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}
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Maybe<AspectRatio> DynamicImage::GetIntrinsicRatio() {
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auto size = mDrawable->Size();
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return Some(AspectRatio::FromSize(size.width, size.height));
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}
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NS_IMETHODIMP_(Orientation)
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DynamicImage::GetOrientation() { return Orientation(); }
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NS_IMETHODIMP_(bool)
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DynamicImage::HandledOrientation() { return false; }
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NS_IMETHODIMP
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DynamicImage::GetType(uint16_t* aType) {
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*aType = imgIContainer::TYPE_RASTER;
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return NS_OK;
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}
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NS_IMETHODIMP
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DynamicImage::GetProducerId(uint32_t* aId) {
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*aId = 0;
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return NS_OK;
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}
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NS_IMETHODIMP
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DynamicImage::GetAnimated(bool* aAnimated) {
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*aAnimated = false;
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return NS_OK;
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}
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NS_IMETHODIMP_(already_AddRefed<SourceSurface>)
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DynamicImage::GetFrame(uint32_t aWhichFrame, uint32_t aFlags) {
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IntSize size(mDrawable->Size());
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return GetFrameAtSize(IntSize(size.width, size.height), aWhichFrame, aFlags);
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}
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NS_IMETHODIMP_(already_AddRefed<SourceSurface>)
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DynamicImage::GetFrameAtSize(const IntSize& aSize, uint32_t aWhichFrame,
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uint32_t aFlags) {
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RefPtr<DrawTarget> dt =
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gfxPlatform::GetPlatform()->CreateOffscreenContentDrawTarget(
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aSize, SurfaceFormat::OS_RGBA);
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if (!dt || !dt->IsValid()) {
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gfxWarning()
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<< "DynamicImage::GetFrame failed in CreateOffscreenContentDrawTarget";
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return nullptr;
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}
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RefPtr<gfxContext> context = gfxContext::CreateOrNull(dt);
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MOZ_ASSERT(context); // already checked the draw target above
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auto result = Draw(context, aSize, ImageRegion::Create(aSize), aWhichFrame,
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SamplingFilter::POINT, Nothing(), aFlags, 1.0);
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return result == ImgDrawResult::SUCCESS ? dt->Snapshot() : nullptr;
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}
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NS_IMETHODIMP_(bool)
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DynamicImage::WillDrawOpaqueNow() { return false; }
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NS_IMETHODIMP_(bool)
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DynamicImage::IsImageContainerAvailable(LayerManager* aManager,
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uint32_t aFlags) {
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return false;
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}
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NS_IMETHODIMP_(already_AddRefed<ImageContainer>)
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DynamicImage::GetImageContainer(LayerManager* aManager, uint32_t aFlags) {
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return nullptr;
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}
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NS_IMETHODIMP_(bool)
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DynamicImage::IsImageContainerAvailableAtSize(LayerManager* aManager,
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const IntSize& aSize,
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uint32_t aFlags) {
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return false;
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}
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NS_IMETHODIMP_(ImgDrawResult)
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DynamicImage::GetImageContainerAtSize(layers::LayerManager* aManager,
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const gfx::IntSize& aSize,
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const Maybe<SVGImageContext>& aSVGContext,
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uint32_t aFlags,
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layers::ImageContainer** aContainer) {
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return ImgDrawResult::NOT_SUPPORTED;
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}
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NS_IMETHODIMP_(ImgDrawResult)
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DynamicImage::Draw(gfxContext* aContext, const nsIntSize& aSize,
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const ImageRegion& aRegion, uint32_t aWhichFrame,
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SamplingFilter aSamplingFilter,
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const Maybe<SVGImageContext>& aSVGContext, uint32_t aFlags,
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float aOpacity) {
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MOZ_ASSERT(!aSize.IsEmpty(), "Unexpected empty size");
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IntSize drawableSize(mDrawable->Size());
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if (aSize == drawableSize) {
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gfxUtils::DrawPixelSnapped(aContext, mDrawable, SizeDouble(drawableSize),
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aRegion, SurfaceFormat::OS_RGBA, aSamplingFilter,
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aOpacity);
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return ImgDrawResult::SUCCESS;
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}
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gfxSize scale(double(aSize.width) / drawableSize.width,
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double(aSize.height) / drawableSize.height);
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ImageRegion region(aRegion);
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region.Scale(1.0 / scale.width, 1.0 / scale.height);
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gfxContextMatrixAutoSaveRestore saveMatrix(aContext);
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aContext->Multiply(gfxMatrix::Scaling(scale.width, scale.height));
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gfxUtils::DrawPixelSnapped(aContext, mDrawable, SizeDouble(drawableSize),
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region, SurfaceFormat::OS_RGBA, aSamplingFilter,
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aOpacity);
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return ImgDrawResult::SUCCESS;
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}
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NS_IMETHODIMP
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DynamicImage::StartDecoding(uint32_t aFlags, uint32_t aWhichFrame) {
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return NS_OK;
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}
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bool DynamicImage::StartDecodingWithResult(uint32_t aFlags,
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uint32_t aWhichFrame) {
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return true;
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}
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imgIContainer::DecodeResult DynamicImage::RequestDecodeWithResult(
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uint32_t aFlags, uint32_t aWhichFrame) {
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return imgIContainer::DECODE_SURFACE_AVAILABLE;
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}
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NS_IMETHODIMP
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DynamicImage::RequestDecodeForSize(const nsIntSize& aSize, uint32_t aFlags,
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uint32_t aWhichFrame) {
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return NS_OK;
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}
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NS_IMETHODIMP
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DynamicImage::LockImage() { return NS_OK; }
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NS_IMETHODIMP
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DynamicImage::UnlockImage() { return NS_OK; }
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NS_IMETHODIMP
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DynamicImage::RequestDiscard() { return NS_OK; }
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NS_IMETHODIMP_(void)
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DynamicImage::RequestRefresh(const mozilla::TimeStamp& aTime) {}
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NS_IMETHODIMP
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DynamicImage::GetAnimationMode(uint16_t* aAnimationMode) {
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*aAnimationMode = kNormalAnimMode;
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return NS_OK;
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}
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NS_IMETHODIMP
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DynamicImage::SetAnimationMode(uint16_t aAnimationMode) { return NS_OK; }
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NS_IMETHODIMP
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DynamicImage::ResetAnimation() { return NS_OK; }
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NS_IMETHODIMP_(float)
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DynamicImage::GetFrameIndex(uint32_t aWhichFrame) { return 0; }
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NS_IMETHODIMP_(int32_t)
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DynamicImage::GetFirstFrameDelay() { return 0; }
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NS_IMETHODIMP_(void)
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DynamicImage::SetAnimationStartTime(const mozilla::TimeStamp& aTime) {}
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nsIntSize DynamicImage::OptimalImageSizeForDest(const gfxSize& aDest,
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uint32_t aWhichFrame,
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SamplingFilter aSamplingFilter,
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uint32_t aFlags) {
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IntSize size(mDrawable->Size());
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return nsIntSize(size.width, size.height);
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}
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NS_IMETHODIMP_(nsIntRect)
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DynamicImage::GetImageSpaceInvalidationRect(const nsIntRect& aRect) {
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return aRect;
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}
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already_AddRefed<imgIContainer> DynamicImage::Unwrap() {
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nsCOMPtr<imgIContainer> self(this);
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return self.forget();
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}
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void DynamicImage::PropagateUseCounters(dom::Document*) {
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// No use counters.
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}
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nsresult DynamicImage::GetHotspotX(int32_t* aX) {
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return Image::GetHotspotX(aX);
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}
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nsresult DynamicImage::GetHotspotY(int32_t* aY) {
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return Image::GetHotspotY(aY);
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}
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} // namespace image
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} // namespace mozilla
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