author Martin Stransky <>
Wed, 11 Sep 2019 15:32:48 +0000
changeset 551888 a358333fb896bada0a8ba91d1b02fcfddb750b76
parent 531253 451701e88d92935b77385235832865dabe8c2942
permissions -rw-r--r--
Bug 1579849 - [Wayland] Optimize cached rendering to wl_buffer for widget.wayland_cache_mode=1, r=jhorak a=RyanVM - When widget.wayland_cache_mode=1 use direct rendering to wl_buffer only when there isn't any cached rendering pending and we're updating one big piece of screen (video playback/scrolling etc..) - Disable frame callback commits between WindowSurfaceWayland::Lock and WindowSurfaceWayland::Commit as the buffer can be updated by gecko compositor Differential Revision:

/* -*- 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 */

#ifndef mozilla_image_OrientedImage_h
#define mozilla_image_OrientedImage_h

#include "ImageWrapper.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/RefPtr.h"
#include "Orientation.h"

namespace mozilla {
namespace image {

 * An Image wrapper that rotates and/or flips an image according to a specified
 * Orientation.
 * XXX(seth): There a known (performance, not correctness) issue with
 * GetImageContainer. See the comments for that method for more information.
class OrientedImage : public ImageWrapper {
  typedef gfx::SourceSurface SourceSurface;


  NS_IMETHOD GetWidth(int32_t* aWidth) override;
  NS_IMETHOD GetHeight(int32_t* aHeight) override;
  nsresult GetNativeSizes(nsTArray<gfx::IntSize>& aNativeSizes) const override;
  NS_IMETHOD GetIntrinsicSize(nsSize* aSize) override;
  Maybe<AspectRatio> GetIntrinsicRatio() override;
  GetFrame(uint32_t aWhichFrame, uint32_t aFlags) override;
  GetFrameAtSize(const gfx::IntSize& aSize, uint32_t aWhichFrame,
                 uint32_t aFlags) override;
  IsImageContainerAvailable(layers::LayerManager* aManager,
                            uint32_t aFlags) override;
  GetImageContainer(layers::LayerManager* aManager, uint32_t aFlags) override;
  IsImageContainerAvailableAtSize(layers::LayerManager* aManager,
                                  const gfx::IntSize& aSize,
                                  uint32_t aFlags) override;
  GetImageContainerAtSize(layers::LayerManager* aManager,
                          const gfx::IntSize& aSize,
                          const Maybe<SVGImageContext>& aSVGContext,
                          uint32_t aFlags,
                          layers::ImageContainer** aOutContainer) override;
  Draw(gfxContext* aContext, const nsIntSize& aSize, const ImageRegion& aRegion,
       uint32_t aWhichFrame, gfx::SamplingFilter aSamplingFilter,
       const Maybe<SVGImageContext>& aSVGContext, uint32_t aFlags,
       float aOpacity) override;
  GetImageSpaceInvalidationRect(const nsIntRect& aRect) override;
  nsIntSize OptimalImageSizeForDest(const gfxSize& aDest, uint32_t aWhichFrame,
                                    gfx::SamplingFilter aSamplingFilter,
                                    uint32_t aFlags) override;

  OrientedImage(Image* aImage, Orientation aOrientation)
      : ImageWrapper(aImage), mOrientation(aOrientation) {}

  virtual ~OrientedImage() {}

  gfxMatrix OrientationMatrix(const nsIntSize& aSize, bool aInvert = false);

  Orientation mOrientation;

  friend class ImageOps;

}  // namespace image
}  // namespace mozilla

#endif  // mozilla_image_OrientedImage_h