image/DynamicImage.cpp
author Henrik Skupin <mail@hskupin.info>
Fri, 30 Nov 2018 13:27:22 +0000
changeset 448968 cd370c35d88d82c719e7b3d70ae1da003c8cb7f6
parent 448947 6f3709b3878117466168c40affa7bca0b60cf75b
child 452446 f0a91d36587266d7454a450c6044d573664fbed5
permissions -rw-r--r--
Bug 1511311 - [marionette] GeckoInstance classes should not overwrite already set custom preferences. r=automatedtester Custom preferences as passed into both classes via the constructor are getting set in the base GeckoInstance class. But both the DesktopInstance and FennecInstance classes could override those custom preferences if they have the same preference set as required preference. As such the custom preference doesn't have any effect. This patch allows both classes to override required prefs with a different value. Differential Revision: https://phabricator.services.mozilla.com/D13522

/* -*- 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 "DynamicImage.h"
#include "gfxPlatform.h"
#include "gfxUtils.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/gfx/Logging.h"
#include "mozilla/RefPtr.h"
#include "ImageRegion.h"
#include "Orientation.h"
#include "SVGImageContext.h"

#include "mozilla/MemoryReporting.h"

using namespace mozilla;
using namespace mozilla::gfx;
using mozilla::layers::ImageContainer;
using mozilla::layers::LayerManager;

namespace mozilla {
namespace image {

// Inherited methods from Image.

already_AddRefed<ProgressTracker> DynamicImage::GetProgressTracker() {
  return nullptr;
}

size_t DynamicImage::SizeOfSourceWithComputedFallback(
    SizeOfState& aState) const {
  return 0;
}

void DynamicImage::CollectSizeOfSurfaces(
    nsTArray<SurfaceMemoryCounter>& aCounters,
    MallocSizeOf aMallocSizeOf) const {
  // We can't report anything useful because gfxDrawable doesn't expose this
  // information.
}

void DynamicImage::IncrementAnimationConsumers() {}

void DynamicImage::DecrementAnimationConsumers() {}

#ifdef DEBUG
uint32_t DynamicImage::GetAnimationConsumers() { return 0; }
#endif

nsresult DynamicImage::OnImageDataAvailable(nsIRequest* aRequest,
                                            nsISupports* aContext,
                                            nsIInputStream* aInStr,
                                            uint64_t aSourceOffset,
                                            uint32_t aCount) {
  return NS_OK;
}

nsresult DynamicImage::OnImageDataComplete(nsIRequest* aRequest,
                                           nsISupports* aContext,
                                           nsresult aStatus, bool aLastPart) {
  return NS_OK;
}

void DynamicImage::OnSurfaceDiscarded(const SurfaceKey& aSurfaceKey) {}

void DynamicImage::SetInnerWindowID(uint64_t aInnerWindowId) {}

uint64_t DynamicImage::InnerWindowID() const { return 0; }

bool DynamicImage::HasError() { return !mDrawable; }

void DynamicImage::SetHasError() {}

nsIURI* DynamicImage::GetURI() const { return nullptr; }

// Methods inherited from XPCOM interfaces.

NS_IMPL_ISUPPORTS(DynamicImage, imgIContainer)

NS_IMETHODIMP
DynamicImage::GetWidth(int32_t* aWidth) {
  *aWidth = mDrawable->Size().width;
  return NS_OK;
}

NS_IMETHODIMP
DynamicImage::GetHeight(int32_t* aHeight) {
  *aHeight = mDrawable->Size().height;
  return NS_OK;
}

nsresult DynamicImage::GetNativeSizes(nsTArray<IntSize>& aNativeSizes) const {
  return NS_ERROR_NOT_IMPLEMENTED;
}

size_t DynamicImage::GetNativeSizesLength() const { return 0; }

NS_IMETHODIMP
DynamicImage::GetIntrinsicSize(nsSize* aSize) {
  IntSize intSize(mDrawable->Size());
  *aSize = nsSize(intSize.width, intSize.height);
  return NS_OK;
}

NS_IMETHODIMP
DynamicImage::GetIntrinsicRatio(nsSize* aSize) {
  IntSize intSize(mDrawable->Size());
  *aSize = nsSize(intSize.width, intSize.height);
  return NS_OK;
}

NS_IMETHODIMP_(Orientation)
DynamicImage::GetOrientation() { return Orientation(); }

NS_IMETHODIMP
DynamicImage::GetType(uint16_t* aType) {
  *aType = imgIContainer::TYPE_RASTER;
  return NS_OK;
}

NS_IMETHODIMP
DynamicImage::GetAnimated(bool* aAnimated) {
  *aAnimated = false;
  return NS_OK;
}

NS_IMETHODIMP_(already_AddRefed<SourceSurface>)
DynamicImage::GetFrame(uint32_t aWhichFrame, uint32_t aFlags) {
  IntSize size(mDrawable->Size());
  return GetFrameAtSize(IntSize(size.width, size.height), aWhichFrame, aFlags);
}

NS_IMETHODIMP_(already_AddRefed<SourceSurface>)
DynamicImage::GetFrameAtSize(const IntSize& aSize, uint32_t aWhichFrame,
                             uint32_t aFlags) {
  RefPtr<DrawTarget> dt =
      gfxPlatform::GetPlatform()->CreateOffscreenContentDrawTarget(
          aSize, SurfaceFormat::B8G8R8A8);
  if (!dt || !dt->IsValid()) {
    gfxWarning()
        << "DynamicImage::GetFrame failed in CreateOffscreenContentDrawTarget";
    return nullptr;
  }
  RefPtr<gfxContext> context = gfxContext::CreateOrNull(dt);
  MOZ_ASSERT(context);  // already checked the draw target above

  auto result = Draw(context, aSize, ImageRegion::Create(aSize), aWhichFrame,
                     SamplingFilter::POINT, Nothing(), aFlags, 1.0);

  return result == ImgDrawResult::SUCCESS ? dt->Snapshot() : nullptr;
}

NS_IMETHODIMP_(bool)
DynamicImage::WillDrawOpaqueNow() { return false; }

NS_IMETHODIMP_(bool)
DynamicImage::IsImageContainerAvailable(LayerManager* aManager,
                                        uint32_t aFlags) {
  return false;
}

NS_IMETHODIMP_(already_AddRefed<ImageContainer>)
DynamicImage::GetImageContainer(LayerManager* aManager, uint32_t aFlags) {
  return nullptr;
}

NS_IMETHODIMP_(bool)
DynamicImage::IsImageContainerAvailableAtSize(LayerManager* aManager,
                                              const IntSize& aSize,
                                              uint32_t aFlags) {
  return false;
}

NS_IMETHODIMP_(ImgDrawResult)
DynamicImage::GetImageContainerAtSize(layers::LayerManager* aManager,
                                      const gfx::IntSize& aSize,
                                      const Maybe<SVGImageContext>& aSVGContext,
                                      uint32_t aFlags,
                                      layers::ImageContainer** aContainer) {
  return ImgDrawResult::NOT_SUPPORTED;
}

NS_IMETHODIMP_(ImgDrawResult)
DynamicImage::Draw(gfxContext* aContext, const nsIntSize& aSize,
                   const ImageRegion& aRegion, uint32_t aWhichFrame,
                   SamplingFilter aSamplingFilter,
                   const Maybe<SVGImageContext>& aSVGContext, uint32_t aFlags,
                   float aOpacity) {
  MOZ_ASSERT(!aSize.IsEmpty(), "Unexpected empty size");

  IntSize drawableSize(mDrawable->Size());

  if (aSize == drawableSize) {
    gfxUtils::DrawPixelSnapped(aContext, mDrawable, SizeDouble(drawableSize),
                               aRegion, SurfaceFormat::B8G8R8A8,
                               aSamplingFilter, aOpacity);
    return ImgDrawResult::SUCCESS;
  }

  gfxSize scale(double(aSize.width) / drawableSize.width,
                double(aSize.height) / drawableSize.height);

  ImageRegion region(aRegion);
  region.Scale(1.0 / scale.width, 1.0 / scale.height);

  gfxContextMatrixAutoSaveRestore saveMatrix(aContext);
  aContext->Multiply(gfxMatrix::Scaling(scale.width, scale.height));

  gfxUtils::DrawPixelSnapped(aContext, mDrawable, SizeDouble(drawableSize),
                             region, SurfaceFormat::B8G8R8A8, aSamplingFilter,
                             aOpacity);
  return ImgDrawResult::SUCCESS;
}

NS_IMETHODIMP
DynamicImage::StartDecoding(uint32_t aFlags) { return NS_OK; }

bool DynamicImage::StartDecodingWithResult(uint32_t aFlags) { return true; }

NS_IMETHODIMP
DynamicImage::RequestDecodeForSize(const nsIntSize& aSize, uint32_t aFlags) {
  return NS_OK;
}

NS_IMETHODIMP
DynamicImage::LockImage() { return NS_OK; }

NS_IMETHODIMP
DynamicImage::UnlockImage() { return NS_OK; }

NS_IMETHODIMP
DynamicImage::RequestDiscard() { return NS_OK; }

NS_IMETHODIMP_(void)
DynamicImage::RequestRefresh(const mozilla::TimeStamp& aTime) {}

NS_IMETHODIMP
DynamicImage::GetAnimationMode(uint16_t* aAnimationMode) {
  *aAnimationMode = kNormalAnimMode;
  return NS_OK;
}

NS_IMETHODIMP
DynamicImage::SetAnimationMode(uint16_t aAnimationMode) { return NS_OK; }

NS_IMETHODIMP
DynamicImage::ResetAnimation() { return NS_OK; }

NS_IMETHODIMP_(float)
DynamicImage::GetFrameIndex(uint32_t aWhichFrame) { return 0; }

NS_IMETHODIMP_(int32_t)
DynamicImage::GetFirstFrameDelay() { return 0; }

NS_IMETHODIMP_(void)
DynamicImage::SetAnimationStartTime(const mozilla::TimeStamp& aTime) {}

nsIntSize DynamicImage::OptimalImageSizeForDest(const gfxSize& aDest,
                                                uint32_t aWhichFrame,
                                                SamplingFilter aSamplingFilter,
                                                uint32_t aFlags) {
  IntSize size(mDrawable->Size());
  return nsIntSize(size.width, size.height);
}

NS_IMETHODIMP_(nsIntRect)
DynamicImage::GetImageSpaceInvalidationRect(const nsIntRect& aRect) {
  return aRect;
}

already_AddRefed<imgIContainer> DynamicImage::Unwrap() {
  nsCOMPtr<imgIContainer> self(this);
  return self.forget();
}

void DynamicImage::PropagateUseCounters(nsIDocument*) {
  // No use counters.
}

}  // namespace image
}  // namespace mozilla