image/src/FrozenImage.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/image/src/FrozenImage.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,123 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#include "FrozenImage.h"
    1.10 +
    1.11 +using namespace mozilla::gfx;
    1.12 +
    1.13 +namespace mozilla {
    1.14 +namespace image {
    1.15 +
    1.16 +NS_IMPL_ISUPPORTS(FrozenImage, imgIContainer)
    1.17 +
    1.18 +nsIntRect
    1.19 +FrozenImage::FrameRect(uint32_t /* aWhichFrame - ignored */)
    1.20 +{
    1.21 +  return InnerImage()->FrameRect(FRAME_FIRST);
    1.22 +}
    1.23 +
    1.24 +void
    1.25 +FrozenImage::IncrementAnimationConsumers()
    1.26 +{
    1.27 +  // Do nothing. This will prevent animation from starting if there are no other
    1.28 +  // instances of this image.
    1.29 +}
    1.30 +
    1.31 +void
    1.32 +FrozenImage::DecrementAnimationConsumers()
    1.33 +{
    1.34 +  // Do nothing.
    1.35 +}
    1.36 +
    1.37 +NS_IMETHODIMP
    1.38 +FrozenImage::GetAnimated(bool* aAnimated)
    1.39 +{
    1.40 +  bool dummy;
    1.41 +  nsresult rv = InnerImage()->GetAnimated(&dummy);
    1.42 +  if (NS_SUCCEEDED(rv)) {
    1.43 +    *aAnimated = false;
    1.44 +  }
    1.45 +  return rv;
    1.46 +}
    1.47 +
    1.48 +NS_IMETHODIMP_(TemporaryRef<SourceSurface>)
    1.49 +FrozenImage::GetFrame(uint32_t aWhichFrame,
    1.50 +                      uint32_t aFlags)
    1.51 +{
    1.52 +  return InnerImage()->GetFrame(FRAME_FIRST, aFlags);
    1.53 +}
    1.54 +
    1.55 +NS_IMETHODIMP_(bool)
    1.56 +FrozenImage::FrameIsOpaque(uint32_t aWhichFrame)
    1.57 +{
    1.58 +  return InnerImage()->FrameIsOpaque(FRAME_FIRST);
    1.59 +}
    1.60 +
    1.61 +NS_IMETHODIMP
    1.62 +FrozenImage::GetImageContainer(layers::LayerManager* aManager,
    1.63 +                               layers::ImageContainer** _retval)
    1.64 +{
    1.65 +  // XXX(seth): GetImageContainer does not currently support anything but the
    1.66 +  // current frame. We work around this by always returning null, but if it ever
    1.67 +  // turns out that FrozenImage is widely used on codepaths that can actually
    1.68 +  // benefit from GetImageContainer, it would be a good idea to fix that method
    1.69 +  // for performance reasons.
    1.70 +
    1.71 +  *_retval = nullptr;
    1.72 +  return NS_OK;
    1.73 +}
    1.74 +
    1.75 +NS_IMETHODIMP
    1.76 +FrozenImage::Draw(gfxContext* aContext,
    1.77 +                  GraphicsFilter aFilter,
    1.78 +                  const gfxMatrix& aUserSpaceToImageSpace,
    1.79 +                  const gfxRect& aFill,
    1.80 +                  const nsIntRect& aSubimage,
    1.81 +                  const nsIntSize& aViewportSize,
    1.82 +                  const SVGImageContext* aSVGContext,
    1.83 +                  uint32_t /* aWhichFrame - ignored */,
    1.84 +                  uint32_t aFlags)
    1.85 +{
    1.86 +  return InnerImage()->Draw(aContext, aFilter, aUserSpaceToImageSpace,
    1.87 +                            aFill, aSubimage, aViewportSize, aSVGContext,
    1.88 +                            FRAME_FIRST, aFlags);
    1.89 +}
    1.90 +
    1.91 +NS_IMETHODIMP_(void)
    1.92 +FrozenImage::RequestRefresh(const mozilla::TimeStamp& aTime)
    1.93 +{
    1.94 +  // Do nothing.
    1.95 +}
    1.96 +
    1.97 +NS_IMETHODIMP
    1.98 +FrozenImage::GetAnimationMode(uint16_t* aAnimationMode)
    1.99 +{
   1.100 +  *aAnimationMode = kNormalAnimMode;
   1.101 +  return NS_OK;
   1.102 +}
   1.103 +
   1.104 +NS_IMETHODIMP
   1.105 +FrozenImage::SetAnimationMode(uint16_t aAnimationMode)
   1.106 +{
   1.107 +  // Do nothing.
   1.108 +  return NS_OK;
   1.109 +}
   1.110 +
   1.111 +NS_IMETHODIMP
   1.112 +FrozenImage::ResetAnimation()
   1.113 +{
   1.114 +  // Do nothing.
   1.115 +  return NS_OK;
   1.116 +}
   1.117 +
   1.118 +NS_IMETHODIMP_(float)
   1.119 +FrozenImage::GetFrameIndex(uint32_t aWhichFrame)
   1.120 +{
   1.121 +  MOZ_ASSERT(aWhichFrame <= FRAME_MAX_VALUE, "Invalid argument");
   1.122 +  return 0;
   1.123 +}
   1.124 +
   1.125 +} // namespace image
   1.126 +} // namespace mozilla

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