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comparison: gfx/2d/ImageScaling.h
gfx/2d/ImageScaling.h
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| -1:000000000000 | 0:a368bb108bc0 |
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| 1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef _MOZILLA_GFX_IMAGESCALING_H | |
| 7 #define _MOZILLA_GFX_IMAGESCALING_H | |
| 8 | |
| 9 #include "Types.h" | |
| 10 | |
| 11 #include <vector> | |
| 12 #include "Point.h" | |
| 13 | |
| 14 namespace mozilla { | |
| 15 namespace gfx { | |
| 16 | |
| 17 class ImageHalfScaler | |
| 18 { | |
| 19 public: | |
| 20 ImageHalfScaler(uint8_t *aData, int32_t aStride, const IntSize &aSize) | |
| 21 : mOrigData(aData), mOrigStride(aStride), mOrigSize(aSize) | |
| 22 , mDataStorage(nullptr) | |
| 23 { | |
| 24 } | |
| 25 | |
| 26 ~ImageHalfScaler() | |
| 27 { | |
| 28 delete [] mDataStorage; | |
| 29 } | |
| 30 | |
| 31 void ScaleForSize(const IntSize &aSize); | |
| 32 | |
| 33 uint8_t *GetScaledData() const { return mData; } | |
| 34 IntSize GetSize() const { return mSize; } | |
| 35 uint32_t GetStride() const { return mStride; } | |
| 36 | |
| 37 private: | |
| 38 void HalfImage2D(uint8_t *aSource, int32_t aSourceStride, const IntSize &aSourceSize, | |
| 39 uint8_t *aDest, uint32_t aDestStride); | |
| 40 void HalfImageVertical(uint8_t *aSource, int32_t aSourceStride, const IntSize &aSourceSize, | |
| 41 uint8_t *aDest, uint32_t aDestStride); | |
| 42 void HalfImageHorizontal(uint8_t *aSource, int32_t aSourceStride, const IntSize &aSourceSize, | |
| 43 uint8_t *aDest, uint32_t aDestStride); | |
| 44 | |
| 45 // This is our SSE2 scaling function. Our destination must always be 16-byte | |
| 46 // aligned and use a 16-byte aligned stride. | |
| 47 void HalfImage2D_SSE2(uint8_t *aSource, int32_t aSourceStride, const IntSize &aSourceSize, | |
| 48 uint8_t *aDest, uint32_t aDestStride); | |
| 49 void HalfImageVertical_SSE2(uint8_t *aSource, int32_t aSourceStride, const IntSize &aSourceSize, | |
| 50 uint8_t *aDest, uint32_t aDestStride); | |
| 51 void HalfImageHorizontal_SSE2(uint8_t *aSource, int32_t aSourceStride, const IntSize &aSourceSize, | |
| 52 uint8_t *aDest, uint32_t aDestStride); | |
| 53 | |
| 54 void HalfImage2D_C(uint8_t *aSource, int32_t aSourceStride, const IntSize &aSourceSize, | |
| 55 uint8_t *aDest, uint32_t aDestStride); | |
| 56 void HalfImageVertical_C(uint8_t *aSource, int32_t aSourceStride, const IntSize &aSourceSize, | |
| 57 uint8_t *aDest, uint32_t aDestStride); | |
| 58 void HalfImageHorizontal_C(uint8_t *aSource, int32_t aSourceStride, const IntSize &aSourceSize, | |
| 59 uint8_t *aDest, uint32_t aDestStride); | |
| 60 | |
| 61 uint8_t *mOrigData; | |
| 62 int32_t mOrigStride; | |
| 63 IntSize mOrigSize; | |
| 64 | |
| 65 uint8_t *mDataStorage; | |
| 66 // Guaranteed 16-byte aligned | |
| 67 uint8_t *mData; | |
| 68 IntSize mSize; | |
| 69 // Guaranteed 16-byte aligned | |
| 70 uint32_t mStride; | |
| 71 }; | |
| 72 | |
| 73 } | |
| 74 } | |
| 75 | |
| 76 #endif |
