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# ignore-this-changeset Depends on D28954 Differential Revision: https://phabricator.services.mozilla.com/D28956 --HG-- extra : moz-landing-system : lando
85 lines
3.0 KiB
C++
85 lines
3.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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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#ifndef _MOZILLA_GFX_IMAGESCALING_H
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#define _MOZILLA_GFX_IMAGESCALING_H
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#include "Types.h"
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#include <vector>
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#include "Point.h"
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namespace mozilla {
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namespace gfx {
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class ImageHalfScaler {
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public:
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ImageHalfScaler(uint8_t* aData, int32_t aStride, const IntSize& aSize)
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: mOrigData(aData),
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mOrigStride(aStride),
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mOrigSize(aSize),
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mDataStorage(nullptr),
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mData(nullptr),
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mStride(0) {}
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~ImageHalfScaler() { delete[] mDataStorage; }
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void ScaleForSize(const IntSize& aSize);
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uint8_t* GetScaledData() const { return mData; }
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IntSize GetSize() const { return mSize; }
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uint32_t GetStride() const { return mStride; }
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private:
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void HalfImage2D(uint8_t* aSource, int32_t aSourceStride,
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const IntSize& aSourceSize, uint8_t* aDest,
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uint32_t aDestStride);
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void HalfImageVertical(uint8_t* aSource, int32_t aSourceStride,
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const IntSize& aSourceSize, uint8_t* aDest,
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uint32_t aDestStride);
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void HalfImageHorizontal(uint8_t* aSource, int32_t aSourceStride,
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const IntSize& aSourceSize, uint8_t* aDest,
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uint32_t aDestStride);
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// This is our SSE2 scaling function. Our destination must always be 16-byte
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// aligned and use a 16-byte aligned stride.
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void HalfImage2D_SSE2(uint8_t* aSource, int32_t aSourceStride,
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const IntSize& aSourceSize, uint8_t* aDest,
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uint32_t aDestStride);
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void HalfImageVertical_SSE2(uint8_t* aSource, int32_t aSourceStride,
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const IntSize& aSourceSize, uint8_t* aDest,
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uint32_t aDestStride);
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void HalfImageHorizontal_SSE2(uint8_t* aSource, int32_t aSourceStride,
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const IntSize& aSourceSize, uint8_t* aDest,
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uint32_t aDestStride);
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void HalfImage2D_C(uint8_t* aSource, int32_t aSourceStride,
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const IntSize& aSourceSize, uint8_t* aDest,
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uint32_t aDestStride);
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void HalfImageVertical_C(uint8_t* aSource, int32_t aSourceStride,
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const IntSize& aSourceSize, uint8_t* aDest,
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uint32_t aDestStride);
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void HalfImageHorizontal_C(uint8_t* aSource, int32_t aSourceStride,
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const IntSize& aSourceSize, uint8_t* aDest,
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uint32_t aDestStride);
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uint8_t* mOrigData;
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int32_t mOrigStride;
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IntSize mOrigSize;
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uint8_t* mDataStorage;
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// Guaranteed 16-byte aligned
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uint8_t* mData;
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IntSize mSize;
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// Guaranteed 16-byte aligned
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uint32_t mStride;
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};
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} // namespace gfx
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} // namespace mozilla
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#endif
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