mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-25 13:51:41 +00:00
f5bbecdcc2
Backed out changeset c4f073f7e3a3 (bug 1711061) Backed out changeset aced4b672fb4 (bug 1711061) Backed out changeset 3687e798f665 (bug 1711061) Backed out changeset 7b471990ea86 (bug 1711061) Backed out changeset 1014a95f540e (bug 1711061) Backed out changeset a37b3091281d (bug 1711061) Backed out changeset 96a0ef35881b (bug 1711061) Backed out changeset 38890cc266fb (bug 1711061) Backed out changeset be73004c0850 (bug 1711061) Backed out changeset b964576ae53d (bug 1711061) Backed out changeset d453c5219255 (bug 1711061) Backed out changeset 0145b538175b (bug 1711061) Backed out changeset 41ba2e2a2d13 (bug 1711061)
103 lines
4.0 KiB
C++
103 lines
4.0 KiB
C++
/* -*- 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/. */
|
|
|
|
#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;
|
|
|
|
public:
|
|
NS_INLINE_DECL_REFCOUNTING_INHERITED(OrientedImage, ImageWrapper)
|
|
|
|
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;
|
|
NS_IMETHOD_(already_AddRefed<SourceSurface>)
|
|
GetFrame(uint32_t aWhichFrame, uint32_t aFlags) override;
|
|
NS_IMETHOD_(already_AddRefed<SourceSurface>)
|
|
GetFrameAtSize(const gfx::IntSize& aSize, uint32_t aWhichFrame,
|
|
uint32_t aFlags) override;
|
|
NS_IMETHOD_(bool)
|
|
IsImageContainerAvailable(WindowRenderer* aRenderer,
|
|
uint32_t aFlags) override;
|
|
NS_IMETHOD_(ImgDrawResult)
|
|
GetImageContainerAtSize(WindowRenderer* aRenderer, const gfx::IntSize& aSize,
|
|
const Maybe<SVGImageContext>& aSVGContext,
|
|
const Maybe<ImageIntRegion>& aRegion, uint32_t aFlags,
|
|
layers::ImageContainer** aOutContainer) override;
|
|
NS_IMETHOD_(ImgDrawResult)
|
|
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;
|
|
NS_IMETHOD_(nsIntRect)
|
|
GetImageSpaceInvalidationRect(const nsIntRect& aRect) override;
|
|
nsIntSize OptimalImageSizeForDest(const gfxSize& aDest, uint32_t aWhichFrame,
|
|
gfx::SamplingFilter aSamplingFilter,
|
|
uint32_t aFlags) override;
|
|
|
|
/**
|
|
* Computes a matrix that applies the rotation and reflection specified by
|
|
* aOrientation, or that matrix's inverse if aInvert is true.
|
|
*
|
|
* @param aSize The scaled size of the inner image. (When outside code
|
|
* specifies the scaled size, as with imgIContainer::Draw and its aSize
|
|
* parameter, it's necessary to swap the width and height if
|
|
* mOrientation.SwapsWidthAndHeight() is true.)
|
|
*
|
|
* @param aInvert If true, compute the inverse of the orientation matrix.
|
|
* Prefer this approach to OrientationMatrix(..).Invert(), because it's more
|
|
* numerically accurate.
|
|
*/
|
|
static gfxMatrix OrientationMatrix(Orientation aOrientation,
|
|
const nsIntSize& aSize,
|
|
bool aInvert = false);
|
|
|
|
/**
|
|
* Returns a SourceSurface that is the result of rotating and flipping
|
|
* aSurface according to aOrientation.
|
|
*/
|
|
static already_AddRefed<SourceSurface> OrientSurface(Orientation aOrientation,
|
|
SourceSurface* aSurface);
|
|
|
|
protected:
|
|
OrientedImage(Image* aImage, Orientation aOrientation)
|
|
: ImageWrapper(aImage), mOrientation(aOrientation) {}
|
|
|
|
virtual ~OrientedImage() {}
|
|
|
|
gfxMatrix OrientationMatrix(const nsIntSize& aSize, bool aInvert = false) {
|
|
return OrientationMatrix(mOrientation, aSize, aInvert);
|
|
}
|
|
|
|
private:
|
|
Orientation mOrientation;
|
|
|
|
friend class ImageOps;
|
|
};
|
|
|
|
} // namespace image
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_image_OrientedImage_h
|