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| 1 | /*! | ||
| 2 | * \copy | ||
| 3 | * Copyright (c) 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 | */ | ||
| 32 | |||
| 33 | #include "downsample.h" | ||
| 34 | #include "../common/cpu.h" | ||
| 35 | |||
| 36 | WELSVP_NAMESPACE_BEGIN | ||
| 37 | |||
| 38 | |||
| 39 | /////////////////////////////////////////////////////////////////////////////////////////////////////////////// | ||
| 40 | |||
| 41 | CDownsampling::CDownsampling (int32_t iCpuFlag) { | ||
| 42 | m_iCPUFlag = iCpuFlag; | ||
| 43 | m_eMethod = METHOD_DOWNSAMPLE; | ||
| 44 | WelsMemset (&m_pfDownsample, 0, sizeof (m_pfDownsample)); | ||
| 45 | InitDownsampleFuncs (m_pfDownsample, m_iCPUFlag); | ||
| 46 | } | ||
| 47 | |||
| 48 | CDownsampling::~CDownsampling() { | ||
| 49 | } | ||
| 50 | |||
| 51 | void CDownsampling::InitDownsampleFuncs (SDownsampleFuncs& sDownsampleFunc, int32_t iCpuFlag) { | ||
| 52 | sDownsampleFunc.pfHalfAverage[0] = DyadicBilinearDownsampler_c; | ||
| 53 | sDownsampleFunc.pfHalfAverage[1] = DyadicBilinearDownsampler_c; | ||
| 54 | sDownsampleFunc.pfHalfAverage[2] = DyadicBilinearDownsampler_c; | ||
| 55 | sDownsampleFunc.pfHalfAverage[3] = DyadicBilinearDownsampler_c; | ||
| 56 | sDownsampleFunc.pfGeneralRatioChroma = GeneralBilinearAccurateDownsampler_c; | ||
| 57 | sDownsampleFunc.pfGeneralRatioLuma = GeneralBilinearFastDownsampler_c; | ||
| 58 | #if defined(X86_ASM) | ||
| 59 | if (iCpuFlag & WELS_CPU_SSE) { | ||
| 60 | /* sDownsampleFunc.pfHalfAverage[0] = DyadicBilinearDownsamplerWidthx32_sse; | ||
| 61 | sDownsampleFunc.pfHalfAverage[1] = DyadicBilinearDownsamplerWidthx16_sse; | ||
| 62 | sDownsampleFunc.pfHalfAverage[2] = DyadicBilinearDownsamplerWidthx8_sse;*/ | ||
| 63 | } | ||
| 64 | if (iCpuFlag & WELS_CPU_SSE2) { | ||
| 65 | // sDownsampleFunc.pfGeneralRatioChroma = GeneralBilinearAccurateDownsamplerWrap_sse2; | ||
| 66 | // sDownsampleFunc.pfGeneralRatioLuma = GeneralBilinearFastDownsamplerWrap_sse2; | ||
| 67 | } | ||
| 68 | if (iCpuFlag & WELS_CPU_SSSE3) { | ||
| 69 | // sDownsampleFunc.pfHalfAverage[0] = DyadicBilinearDownsamplerWidthx32_ssse3; | ||
| 70 | // sDownsampleFunc.pfHalfAverage[1] = DyadicBilinearDownsamplerWidthx16_ssse3; | ||
| 71 | } | ||
| 72 | if (iCpuFlag & WELS_CPU_SSE41) { | ||
| 73 | // sDownsampleFunc.pfHalfAverage[0] = DyadicBilinearDownsamplerWidthx32_sse4; | ||
| 74 | // sDownsampleFunc.pfHalfAverage[1] = DyadicBilinearDownsamplerWidthx16_sse4; | ||
| 75 | } | ||
| 76 | #endif//X86_ASM | ||
| 77 | |||
| 78 | } | ||
| 79 | |||
| 80 | EResult CDownsampling::Process (int32_t iType, SPixMap* pSrcPixMap, SPixMap* pDstPixMap) { | ||
| 81 | int32_t iSrcWidthY = pSrcPixMap->sRect.iRectWidth; | ||
| 82 | int32_t iSrcHeightY = pSrcPixMap->sRect.iRectHeight; | ||
| 83 | int32_t iDstWidthY = pDstPixMap->sRect.iRectWidth; | ||
| 84 | int32_t iDstHeightY = pDstPixMap->sRect.iRectHeight; | ||
| 85 | |||
| 86 | int32_t iSrcWidthUV = iSrcWidthY >> 1; | ||
| 87 | int32_t iSrcHeightUV = iSrcHeightY >> 1; | ||
| 88 | int32_t iDstWidthUV = iDstWidthY >> 1; | ||
| 89 | int32_t iDstHeightUV = iDstHeightY >> 1; | ||
| 90 | |||
| 91 | if (iSrcWidthY <= iDstWidthY || iSrcHeightY <= iDstHeightY) { | ||
| 92 | return RET_INVALIDPARAM; | ||
| 93 | } | ||
| 94 | |||
| 95 | if ((iSrcWidthY >> 1) == iDstWidthY && (iSrcHeightY >> 1) == iDstHeightY) { | ||
| 96 | // use half average functions | ||
| 97 | uint8_t iAlignIndex = 3; | ||
| 98 | |||
| 99 | iAlignIndex = GetAlignedIndex (iSrcWidthY); | ||
| 100 | m_pfDownsample.pfHalfAverage[iAlignIndex] ((uint8_t*)pDstPixMap->pPixel[0], pDstPixMap->iStride[0], | ||
| 101 | (uint8_t*)pSrcPixMap->pPixel[0], pSrcPixMap->iStride[0], iSrcWidthY, iSrcHeightY); | ||
| 102 | |||
| 103 | iAlignIndex = GetAlignedIndex (iSrcWidthUV); | ||
| 104 | m_pfDownsample.pfHalfAverage[iAlignIndex] ((uint8_t*)pDstPixMap->pPixel[1], pDstPixMap->iStride[1], | ||
| 105 | (uint8_t*)pSrcPixMap->pPixel[1], pSrcPixMap->iStride[1], iSrcWidthUV, iSrcHeightUV); | ||
| 106 | m_pfDownsample.pfHalfAverage[iAlignIndex] ((uint8_t*)pDstPixMap->pPixel[2], pDstPixMap->iStride[2], | ||
| 107 | (uint8_t*)pSrcPixMap->pPixel[2], pSrcPixMap->iStride[2], iSrcWidthUV, iSrcHeightUV); | ||
| 108 | } else { | ||
| 109 | m_pfDownsample.pfGeneralRatioLuma ((uint8_t*)pDstPixMap->pPixel[0], pDstPixMap->iStride[0], iDstWidthY, iDstHeightY, | ||
| 110 | (uint8_t*)pSrcPixMap->pPixel[0], pSrcPixMap->iStride[0], iSrcWidthY, iSrcHeightY); | ||
| 111 | |||
| 112 | m_pfDownsample.pfGeneralRatioChroma ((uint8_t*)pDstPixMap->pPixel[1], pDstPixMap->iStride[1], iDstWidthUV, iDstHeightUV, | ||
| 113 | (uint8_t*)pSrcPixMap->pPixel[1], pSrcPixMap->iStride[1], iSrcWidthUV, iSrcHeightUV); | ||
| 114 | |||
| 115 | m_pfDownsample.pfGeneralRatioChroma ((uint8_t*)pDstPixMap->pPixel[2], pDstPixMap->iStride[2], iDstWidthUV, iDstHeightUV, | ||
| 116 | (uint8_t*)pSrcPixMap->pPixel[2], pSrcPixMap->iStride[2], iSrcWidthUV, iSrcHeightUV); | ||
| 117 | } | ||
| 118 | return RET_SUCCESS; | ||
| 119 | } | ||
| 120 | |||
| 121 | int32_t CDownsampling::GetAlignedIndex (const int32_t kiSrcWidth) { | ||
| 122 | int32_t iAlignIndex = 3; | ||
| 123 | if ((kiSrcWidth & 0x1f) == 0) // x32 | ||
| 124 | iAlignIndex = 0; | ||
| 125 | else if ((kiSrcWidth & 0x0f) == 0) // x16 | ||
| 126 | iAlignIndex = 1; | ||
| 127 | else if ((kiSrcWidth & 0x07) == 0) // x8 | ||
| 128 | iAlignIndex = 2; | ||
| 129 | else | ||
| 130 | iAlignIndex = 3; | ||
| 131 | return iAlignIndex; | ||
| 132 | } | ||
| 133 | |||
| 134 | |||
| 135 | WELSVP_NAMESPACE_END | ||