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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 "denoise.h" | |
| 34 | +#include "../common/cpu.h" | |
| 35 | + | |
| 36 | +WELSVP_NAMESPACE_BEGIN | |
| 37 | + | |
| 38 | +#define CALC_BI_STRIDE(iWidth, iBitcount) ((((iWidth) * (iBitcount) + 31) & ~31) >> 3) | |
| 39 | + | |
| 40 | +/////////////////////////////////////////////////////////////////////////////////////////////////////////////// | |
| 41 | + | |
| 42 | +CDenoiser::CDenoiser (int32_t iCpuFlag) { | |
| 43 | + m_CPUFlag = iCpuFlag; | |
| 44 | + m_eMethod = METHOD_DENOISE; | |
| 45 | + WelsMemset (&m_pfDenoise, 0, sizeof (m_pfDenoise)); | |
| 46 | + | |
| 47 | + m_uiSpaceRadius = DENOISE_GRAY_RADIUS; | |
| 48 | + m_fSigmaGrey = DENOISE_GRAY_SIGMA; | |
| 49 | + m_uiType = DENOISE_ALL_COMPONENT; | |
| 50 | + InitDenoiseFunc (m_pfDenoise, m_CPUFlag); | |
| 51 | +} | |
| 52 | + | |
| 53 | +CDenoiser::~CDenoiser() { | |
| 54 | +} | |
| 55 | + | |
| 56 | +void CDenoiser::InitDenoiseFunc (SDenoiseFuncs& denoiser, int32_t iCpuFlag) { | |
| 57 | + denoiser.pfBilateralLumaFilter8 = BilateralLumaFilter8_c; | |
| 58 | + denoiser.pfWaverageChromaFilter8 = WaverageChromaFilter8_c; | |
| 59 | +#if defined(X86_ASM) | |
| 60 | + if (iCpuFlag & WELS_CPU_SSE2) { | |
| 61 | + denoiser.pfBilateralLumaFilter8 = BilateralLumaFilter8_sse2; | |
| 62 | + denoiser.pfWaverageChromaFilter8 = WaverageChromaFilter8_sse2; | |
| 63 | + } | |
| 64 | +#endif | |
| 65 | +} | |
| 66 | + | |
| 67 | +EResult CDenoiser::Process (int32_t iType, SPixMap* pSrc, SPixMap* dst) { | |
| 68 | + uint8_t* pSrcY = (uint8_t*)pSrc->pPixel[0]; | |
| 69 | + uint8_t* pSrcU = (uint8_t*)pSrc->pPixel[1]; | |
| 70 | + uint8_t* pSrcV = (uint8_t*)pSrc->pPixel[2]; | |
| 71 | + if (pSrcY == NULL || pSrcU == NULL || pSrcV == NULL) { | |
| 72 | + return RET_INVALIDPARAM; | |
| 73 | + } | |
| 74 | + | |
| 75 | + int32_t iWidthY = pSrc->sRect.iRectWidth; | |
| 76 | + int32_t iHeightY = pSrc->sRect.iRectHeight; | |
| 77 | + int32_t iWidthUV = iWidthY >> 1; | |
| 78 | + int32_t iHeightUV = iHeightY >> 1; | |
| 79 | + | |
| 80 | + if (m_uiType & DENOISE_Y_COMPONENT) | |
| 81 | + BilateralDenoiseLuma (pSrcY, iWidthY, iHeightY, pSrc->iStride[0]); | |
| 82 | + | |
| 83 | + if (m_uiType & DENOISE_U_COMPONENT) | |
| 84 | + WaverageDenoiseChroma (pSrcU, iWidthUV, iHeightUV, pSrc->iStride[1]); | |
| 85 | + | |
| 86 | + if (m_uiType & DENOISE_V_COMPONENT) | |
| 87 | + WaverageDenoiseChroma (pSrcV, iWidthUV, iHeightUV, pSrc->iStride[2]); | |
| 88 | + | |
| 89 | + return RET_SUCCESS; | |
| 90 | +} | |
| 91 | + | |
| 92 | +void CDenoiser::BilateralDenoiseLuma (uint8_t* pSrcY, int32_t iWidth, int32_t iHeight, int32_t iStride) { | |
| 93 | + int32_t w; | |
| 94 | + | |
| 95 | + pSrcY = pSrcY + m_uiSpaceRadius * iStride; | |
| 96 | + for (int32_t h = m_uiSpaceRadius; h < iHeight - m_uiSpaceRadius; h++) { | |
| 97 | + for (w = m_uiSpaceRadius; w < iWidth - m_uiSpaceRadius - TAIL_OF_LINE8; w += 8) { | |
| 98 | + m_pfDenoise.pfBilateralLumaFilter8 (pSrcY + w, iStride); | |
| 99 | + } | |
| 100 | + for (w = w + TAIL_OF_LINE8; w < iWidth - m_uiSpaceRadius; w++) { | |
| 101 | + Gauss3x3Filter (pSrcY + w, iStride); | |
| 102 | + } | |
| 103 | + pSrcY += iStride; | |
| 104 | + } | |
| 105 | +} | |
| 106 | + | |
| 107 | +void CDenoiser::WaverageDenoiseChroma (uint8_t* pSrcUV, int32_t iWidth, int32_t iHeight, int32_t iStride) { | |
| 108 | + int32_t w; | |
| 109 | + | |
| 110 | + pSrcUV = pSrcUV + UV_WINDOWS_RADIUS * iStride; | |
| 111 | + for (int32_t h = UV_WINDOWS_RADIUS; h < iHeight - UV_WINDOWS_RADIUS; h++) { | |
| 112 | + for (w = UV_WINDOWS_RADIUS; w < iWidth - UV_WINDOWS_RADIUS - TAIL_OF_LINE8; w += 8) { | |
| 113 | + m_pfDenoise.pfWaverageChromaFilter8 (pSrcUV + w, iStride); | |
| 114 | + } | |
| 115 | + | |
| 116 | + for (w = w + TAIL_OF_LINE8; w < iWidth - UV_WINDOWS_RADIUS; w++) { | |
| 117 | + Gauss3x3Filter (pSrcUV + w, iStride); | |
| 118 | + } | |
| 119 | + pSrcUV += iStride; | |
| 120 | + } | |
| 121 | +} | |
| 122 | + | |
| 123 | + | |
| 124 | +WELSVP_NAMESPACE_END | |