178e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar/* 278e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar * Copyright (C) 2007-2008 ARM Limited 378e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar * 478e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar * Licensed under the Apache License, Version 2.0 (the "License"); 578e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar * you may not use this file except in compliance with the License. 678e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar * You may obtain a copy of the License at 778e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar * 878e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar * http://www.apache.org/licenses/LICENSE-2.0 978e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar * 1078e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar * Unless required by applicable law or agreed to in writing, software 1178e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar * distributed under the License is distributed on an "AS IS" BASIS, 1278e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1378e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar * See the License for the specific language governing permissions and 1478e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar * limitations under the License. 1578e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar * 1678e52bfac041d71ce53b5b13c2abf78af742b09dLajos Molnar */ 170c1bc742181ded4930842b46e9507372f0b1b963James Dong/** 180c1bc742181ded4930842b46e9507372f0b1b963James Dong * 190c1bc742181ded4930842b46e9507372f0b1b963James Dong * File Name: armVCM4P10_Interpolate_Chroma.c 200c1bc742181ded4930842b46e9507372f0b1b963James Dong * OpenMAX DL: v1.0.2 210c1bc742181ded4930842b46e9507372f0b1b963James Dong * Revision: 9641 220c1bc742181ded4930842b46e9507372f0b1b963James Dong * Date: Thursday, February 7, 2008 230c1bc742181ded4930842b46e9507372f0b1b963James Dong * 240c1bc742181ded4930842b46e9507372f0b1b963James Dong * 250c1bc742181ded4930842b46e9507372f0b1b963James Dong * 260c1bc742181ded4930842b46e9507372f0b1b963James Dong * Description: 270c1bc742181ded4930842b46e9507372f0b1b963James Dong * This function will calculate interpolation for chroma components 280c1bc742181ded4930842b46e9507372f0b1b963James Dong * 290c1bc742181ded4930842b46e9507372f0b1b963James Dong */ 300c1bc742181ded4930842b46e9507372f0b1b963James Dong 310c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "omxtypes.h" 320c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "armOMX.h" 330c1bc742181ded4930842b46e9507372f0b1b963James Dong 340c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "armCOMM.h" 350c1bc742181ded4930842b46e9507372f0b1b963James Dong 360c1bc742181ded4930842b46e9507372f0b1b963James Dong/** 370c1bc742181ded4930842b46e9507372f0b1b963James Dong * Function: armVCM4P10_Interpolate_Chroma 380c1bc742181ded4930842b46e9507372f0b1b963James Dong * 390c1bc742181ded4930842b46e9507372f0b1b963James Dong * Description: 400c1bc742181ded4930842b46e9507372f0b1b963James Dong * This function performs interpolation for chroma components. 410c1bc742181ded4930842b46e9507372f0b1b963James Dong * 420c1bc742181ded4930842b46e9507372f0b1b963James Dong * Remarks: 430c1bc742181ded4930842b46e9507372f0b1b963James Dong * 440c1bc742181ded4930842b46e9507372f0b1b963James Dong * [in] pSrc Pointer to top-left corner of block used to 450c1bc742181ded4930842b46e9507372f0b1b963James Dong * interpolate in the reconstructed frame plane 460c1bc742181ded4930842b46e9507372f0b1b963James Dong * [in] iSrcStep Step of the source buffer. 470c1bc742181ded4930842b46e9507372f0b1b963James Dong * [in] iDstStep Step of the destination(interpolation) buffer. 480c1bc742181ded4930842b46e9507372f0b1b963James Dong * [in] iWidth Width of the current block 490c1bc742181ded4930842b46e9507372f0b1b963James Dong * [in] iHeight Height of the current block 500c1bc742181ded4930842b46e9507372f0b1b963James Dong * [in] dx Fractional part of horizontal motion vector 510c1bc742181ded4930842b46e9507372f0b1b963James Dong * component in 1/8 pixel unit (0~7) 520c1bc742181ded4930842b46e9507372f0b1b963James Dong * [in] dy Fractional part of vertical motion vector 530c1bc742181ded4930842b46e9507372f0b1b963James Dong * component in 1/8 pixel unit (0~7) 540c1bc742181ded4930842b46e9507372f0b1b963James Dong * [out] pDst Pointer to the interpolation buffer 550c1bc742181ded4930842b46e9507372f0b1b963James Dong * 560c1bc742181ded4930842b46e9507372f0b1b963James Dong * Return Value: 570c1bc742181ded4930842b46e9507372f0b1b963James Dong * Standard OMXResult value. 580c1bc742181ded4930842b46e9507372f0b1b963James Dong * 590c1bc742181ded4930842b46e9507372f0b1b963James Dong */ 600c1bc742181ded4930842b46e9507372f0b1b963James Dong OMXResult armVCM4P10_Interpolate_Chroma( 610c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U8 *pSrc, 620c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U32 iSrcStep, 630c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U8 *pDst, 640c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U32 iDstStep, 650c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U32 iWidth, 660c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U32 iHeight, 670c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U32 dx, 680c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U32 dy 690c1bc742181ded4930842b46e9507372f0b1b963James Dong) 700c1bc742181ded4930842b46e9507372f0b1b963James Dong{ 710c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U32 EightMinusdx = 8 - dx; 720c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U32 EightMinusdy = 8 - dy; 730c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U32 ACoeff, BCoeff, CCoeff, DCoeff; 740c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U32 x, y; 750c1bc742181ded4930842b46e9507372f0b1b963James Dong 760c1bc742181ded4930842b46e9507372f0b1b963James Dong /* check for argument error */ 770c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(pSrc == NULL, OMX_Sts_BadArgErr) 780c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(pDst == NULL, OMX_Sts_BadArgErr) 790c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(dx > 7, OMX_Sts_BadArgErr) 800c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(dy > 7, OMX_Sts_BadArgErr) 810c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(iSrcStep == 0, OMX_Sts_BadArgErr) 820c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(iDstStep == 0, OMX_Sts_BadArgErr) 830c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(iWidth == 0, OMX_Sts_BadArgErr) 840c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(iHeight == 0, OMX_Sts_BadArgErr) 850c1bc742181ded4930842b46e9507372f0b1b963James Dong 860c1bc742181ded4930842b46e9507372f0b1b963James Dong /* if fractionl mv is not (0, 0) */ 870c1bc742181ded4930842b46e9507372f0b1b963James Dong if (dx != 0 || dy != 0) 880c1bc742181ded4930842b46e9507372f0b1b963James Dong { 890c1bc742181ded4930842b46e9507372f0b1b963James Dong ACoeff = EightMinusdx * EightMinusdy; 900c1bc742181ded4930842b46e9507372f0b1b963James Dong BCoeff = dx * EightMinusdy; 910c1bc742181ded4930842b46e9507372f0b1b963James Dong CCoeff = EightMinusdx * dy; 920c1bc742181ded4930842b46e9507372f0b1b963James Dong DCoeff = dx * dy; 930c1bc742181ded4930842b46e9507372f0b1b963James Dong 940c1bc742181ded4930842b46e9507372f0b1b963James Dong for (y = 0; y < iHeight; y++) 950c1bc742181ded4930842b46e9507372f0b1b963James Dong { 960c1bc742181ded4930842b46e9507372f0b1b963James Dong for (x = 0; x < iWidth; x++) 970c1bc742181ded4930842b46e9507372f0b1b963James Dong { 980c1bc742181ded4930842b46e9507372f0b1b963James Dong pDst [y * iDstStep + x] = ( 990c1bc742181ded4930842b46e9507372f0b1b963James Dong ACoeff * pSrc [y * iSrcStep + x] + 1000c1bc742181ded4930842b46e9507372f0b1b963James Dong BCoeff * pSrc [y * iSrcStep + x + 1] + 1010c1bc742181ded4930842b46e9507372f0b1b963James Dong CCoeff * pSrc [(y + 1) * iSrcStep + x] + 1020c1bc742181ded4930842b46e9507372f0b1b963James Dong DCoeff * pSrc [(y + 1) * iSrcStep + x + 1] + 1030c1bc742181ded4930842b46e9507372f0b1b963James Dong 32) >> 6; 1040c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1050c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1060c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1070c1bc742181ded4930842b46e9507372f0b1b963James Dong else 1080c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1090c1bc742181ded4930842b46e9507372f0b1b963James Dong for (y = 0; y < iHeight; y++) 1100c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1110c1bc742181ded4930842b46e9507372f0b1b963James Dong for (x = 0; x < iWidth; x++) 1120c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1130c1bc742181ded4930842b46e9507372f0b1b963James Dong pDst [y * iDstStep + x] = pSrc [y * iSrcStep + x]; 1140c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1150c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1160c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1170c1bc742181ded4930842b46e9507372f0b1b963James Dong 1180c1bc742181ded4930842b46e9507372f0b1b963James Dong return OMX_Sts_NoErr; 1190c1bc742181ded4930842b46e9507372f0b1b963James Dong} 1200c1bc742181ded4930842b46e9507372f0b1b963James Dong 1210c1bc742181ded4930842b46e9507372f0b1b963James Dong/***************************************************************************** 1220c1bc742181ded4930842b46e9507372f0b1b963James Dong * END OF FILE 1230c1bc742181ded4930842b46e9507372f0b1b963James Dong *****************************************************************************/ 1240c1bc742181ded4930842b46e9507372f0b1b963James Dong 125