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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 | ||