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| 1 | +/*! | |
| 2 | + * \copy | |
| 3 | + * Copyright (c) 2011-2013, Cisco Systems | |
| 4 | + * All rights reserved. | |
| 5 | + * | |
| 6 | + * Redistribution and use in source and binary forms, with or without | |
| 7 | + * modification, are permitted provided that the following conditions | |
| 8 | + * are met: | |
| 9 | + * | |
| 10 | + * * Redistributions of source code must retain the above copyright | |
| 11 | + * notice, this list of conditions and the following disclaimer. | |
| 12 | + * | |
| 13 | + * * Redistributions in binary form must reproduce the above copyright | |
| 14 | + * notice, this list of conditions and the following disclaimer in | |
| 15 | + * the documentation and/or other materials provided with the | |
| 16 | + * distribution. | |
| 17 | + * | |
| 18 | + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 | + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 | + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
| 21 | + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
| 22 | + * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
| 23 | + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | |
| 24 | + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 25 | + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
| 26 | + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 27 | + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN | |
| 28 | + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 29 | + * POSSIBILITY OF SUCH DAMAGE. | |
| 30 | + * | |
| 31 | + * \file : downsample.h | |
| 32 | + * | |
| 33 | + * \brief : downsample class of wels video processor class | |
| 34 | + * | |
| 35 | + * \date : 2011/03/33 | |
| 36 | + * | |
| 37 | + * \description : 1. rewrite the package code of downsample class | |
| 38 | + * | |
| 39 | + ************************************************************************************* | |
| 40 | + */ | |
| 41 | + | |
| 42 | +#ifndef WELSVP_DOWNSAMPLE_H | |
| 43 | +#define WELSVP_DOWNSAMPLE_H | |
| 44 | + | |
| 45 | +#include "../common/util.h" | |
| 46 | +#include "../common/WelsFrameWork.h" | |
| 47 | +#include "../../interface/IWelsVP.h" | |
| 48 | + | |
| 49 | +WELSVP_NAMESPACE_BEGIN | |
| 50 | + | |
| 51 | + | |
| 52 | +typedef void (HalveDownsampleFunc) (uint8_t* pDst, const int32_t kiDstStride, | |
| 53 | + uint8_t* pSrc, const int32_t kiSrcStride, | |
| 54 | + const int32_t kiSrcWidth, const int32_t kiSrcHeight); | |
| 55 | + | |
| 56 | +typedef void (GeneralDownsampleFunc) (uint8_t* pDst, const int32_t kiDstStride, const int32_t kiDstWidth, | |
| 57 | + const int32_t kiDstHeight, | |
| 58 | + uint8_t* pSrc, const int32_t kiSrcStride, const int32_t kiSrcWidth, const int32_t kiSrcHeight); | |
| 59 | + | |
| 60 | +typedef HalveDownsampleFunc* PHalveDownsampleFunc; | |
| 61 | +typedef GeneralDownsampleFunc* PGeneralDownsampleFunc; | |
| 62 | + | |
| 63 | +HalveDownsampleFunc DyadicBilinearDownsampler_c; | |
| 64 | +GeneralDownsampleFunc GeneralBilinearFastDownsampler_c; | |
| 65 | +GeneralDownsampleFunc GeneralBilinearAccurateDownsampler_c; | |
| 66 | + | |
| 67 | +typedef struct { | |
| 68 | + // align_index: 0 = x32; 1 = x16; 2 = x8; 3 = common case left; | |
| 69 | + PHalveDownsampleFunc pfHalfAverage[4]; | |
| 70 | + PGeneralDownsampleFunc pfGeneralRatioLuma; | |
| 71 | + PGeneralDownsampleFunc pfGeneralRatioChroma; | |
| 72 | +} SDownsampleFuncs; | |
| 73 | + | |
| 74 | + | |
| 75 | +#ifdef X86_ASM | |
| 76 | +WELSVP_EXTERN_C_BEGIN | |
| 77 | +// used for scr width is multipler of 8 pixels | |
| 78 | +HalveDownsampleFunc DyadicBilinearDownsamplerWidthx8_sse; | |
| 79 | +// iSrcWidth= x16 pixels | |
| 80 | +HalveDownsampleFunc DyadicBilinearDownsamplerWidthx16_sse; | |
| 81 | +// iSrcWidth= x32 pixels | |
| 82 | +HalveDownsampleFunc DyadicBilinearDownsamplerWidthx32_sse; | |
| 83 | +// used for scr width is multipler of 16 pixels | |
| 84 | +HalveDownsampleFunc DyadicBilinearDownsamplerWidthx16_ssse3; | |
| 85 | +// iSrcWidth= x32 pixels | |
| 86 | +HalveDownsampleFunc DyadicBilinearDownsamplerWidthx32_ssse3; | |
| 87 | +// iSrcWidth= x16 pixels | |
| 88 | +HalveDownsampleFunc DyadicBilinearDownsamplerWidthx16_sse4; | |
| 89 | +// iSrcWidth= x32 pixels | |
| 90 | +HalveDownsampleFunc DyadicBilinearDownsamplerWidthx32_sse4; | |
| 91 | + | |
| 92 | +GeneralDownsampleFunc GeneralBilinearFastDownsamplerWrap_sse2; | |
| 93 | +GeneralDownsampleFunc GeneralBilinearAccurateDownsamplerWrap_sse2; | |
| 94 | + | |
| 95 | +void GeneralBilinearFastDownsampler_sse2 (uint8_t* pDst, const int32_t kiDstStride, const int32_t kiDstWidth, | |
| 96 | + const int32_t kiDstHeight, | |
| 97 | + uint8_t* pSrc, const int32_t kiSrcStride, const int32_t kiSrcWidth, const int32_t kiSrcHeight, | |
| 98 | + const uint32_t kuiScaleX, const uint32_t kuiScaleY); | |
| 99 | +void GeneralBilinearAccurateDownsampler_sse2 (uint8_t* pDst, const int32_t kiDstStride, const int32_t kiDstWidth, | |
| 100 | + const int32_t kiDstHeight, | |
| 101 | + uint8_t* pSrc, const int32_t kiSrcStride, const int32_t kiSrcWidth, const int32_t kiSrcHeight, | |
| 102 | + const uint32_t kuiScaleX, const uint32_t kuiScaleY); | |
| 103 | +WELSVP_EXTERN_C_END | |
| 104 | +#endif | |
| 105 | + | |
| 106 | + | |
| 107 | + | |
| 108 | + | |
| 109 | +class CDownsampling : public IStrategy { | |
| 110 | + public: | |
| 111 | + CDownsampling (int32_t iCpuFlag); | |
| 112 | + ~CDownsampling(); | |
| 113 | + | |
| 114 | + EResult Process (int32_t iType, SPixMap* pSrc, SPixMap* pDst); | |
| 115 | + | |
| 116 | + private: | |
| 117 | + void InitDownsampleFuncs (SDownsampleFuncs& sDownsampleFunc, int32_t iCpuFlag); | |
| 118 | + | |
| 119 | + int32_t GetAlignedIndex (const int32_t kiSrcWidth); | |
| 120 | + | |
| 121 | + private: | |
| 122 | + SDownsampleFuncs m_pfDownsample; | |
| 123 | + int32_t m_iCPUFlag; | |
| 124 | +}; | |
| 125 | + | |
| 126 | +WELSVP_NAMESPACE_END | |
| 127 | + | |
| 128 | +#endif | |