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 * 200c1bc742181ded4930842b46e9507372f0b1b963James Dong * File Name: omxVCM4P10_DequantTransformResidualFromPairAndAdd.c 210c1bc742181ded4930842b46e9507372f0b1b963James Dong * OpenMAX DL: v1.0.2 220c1bc742181ded4930842b46e9507372f0b1b963James Dong * Revision: 9641 230c1bc742181ded4930842b46e9507372f0b1b963James Dong * Date: Thursday, February 7, 2008 240c1bc742181ded4930842b46e9507372f0b1b963James Dong * 250c1bc742181ded4930842b46e9507372f0b1b963James Dong * 260c1bc742181ded4930842b46e9507372f0b1b963James Dong * 270c1bc742181ded4930842b46e9507372f0b1b963James Dong * 280c1bc742181ded4930842b46e9507372f0b1b963James Dong * H.264 inverse quantize and transform module 290c1bc742181ded4930842b46e9507372f0b1b963James Dong * 300c1bc742181ded4930842b46e9507372f0b1b963James Dong */ 310c1bc742181ded4930842b46e9507372f0b1b963James Dong 320c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "omxtypes.h" 330c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "armOMX.h" 340c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "omxVC.h" 350c1bc742181ded4930842b46e9507372f0b1b963James Dong 360c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "armCOMM.h" 370c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "armVC.h" 380c1bc742181ded4930842b46e9507372f0b1b963James Dong 390c1bc742181ded4930842b46e9507372f0b1b963James Dong/* 400c1bc742181ded4930842b46e9507372f0b1b963James Dong * Description: 410c1bc742181ded4930842b46e9507372f0b1b963James Dong * Dequantize Luma AC block 420c1bc742181ded4930842b46e9507372f0b1b963James Dong */ 430c1bc742181ded4930842b46e9507372f0b1b963James Dong 440c1bc742181ded4930842b46e9507372f0b1b963James Dongstatic void DequantLumaAC4x4( 450c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_S16* pSrcDst, 460c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_INT QP 470c1bc742181ded4930842b46e9507372f0b1b963James Dong) 480c1bc742181ded4930842b46e9507372f0b1b963James Dong{ 490c1bc742181ded4930842b46e9507372f0b1b963James Dong const OMX_U8 *pVRow = &armVCM4P10_VMatrix[QP%6][0]; 500c1bc742181ded4930842b46e9507372f0b1b963James Dong int Shift = QP / 6; 510c1bc742181ded4930842b46e9507372f0b1b963James Dong int i; 520c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_S32 Value; 530c1bc742181ded4930842b46e9507372f0b1b963James Dong 540c1bc742181ded4930842b46e9507372f0b1b963James Dong for (i=0; i<16; i++) 550c1bc742181ded4930842b46e9507372f0b1b963James Dong { 560c1bc742181ded4930842b46e9507372f0b1b963James Dong 570c1bc742181ded4930842b46e9507372f0b1b963James Dong Value = (pSrcDst[i] * pVRow[armVCM4P10_PosToVCol4x4[i]]) << Shift; 580c1bc742181ded4930842b46e9507372f0b1b963James Dong pSrcDst[i] = (OMX_S16)Value; 590c1bc742181ded4930842b46e9507372f0b1b963James Dong } 600c1bc742181ded4930842b46e9507372f0b1b963James Dong} 610c1bc742181ded4930842b46e9507372f0b1b963James Dong 620c1bc742181ded4930842b46e9507372f0b1b963James Dong/** 630c1bc742181ded4930842b46e9507372f0b1b963James Dong * Function: omxVCM4P10_DequantTransformResidualFromPairAndAdd (6.3.4.2.3) 640c1bc742181ded4930842b46e9507372f0b1b963James Dong * 650c1bc742181ded4930842b46e9507372f0b1b963James Dong * Description: 660c1bc742181ded4930842b46e9507372f0b1b963James Dong * Reconstruct the 4x4 residual block from coefficient-position pair buffer, 670c1bc742181ded4930842b46e9507372f0b1b963James Dong * perform dequantization and integer inverse transformation for 4x4 block of 680c1bc742181ded4930842b46e9507372f0b1b963James Dong * residuals with previous intra prediction or motion compensation data, and 690c1bc742181ded4930842b46e9507372f0b1b963James Dong * update the pair buffer pointer to next non-empty block. If pDC == NULL, 700c1bc742181ded4930842b46e9507372f0b1b963James Dong * there re 16 non-zero AC coefficients at most in the packed buffer starting 710c1bc742181ded4930842b46e9507372f0b1b963James Dong * from 4x4 block position 0; If pDC != NULL, there re 15 non-zero AC 720c1bc742181ded4930842b46e9507372f0b1b963James Dong * coefficients at most in the packet buffer starting from 4x4 block position 730c1bc742181ded4930842b46e9507372f0b1b963James Dong * 1. 740c1bc742181ded4930842b46e9507372f0b1b963James Dong * 750c1bc742181ded4930842b46e9507372f0b1b963James Dong * Input Arguments: 760c1bc742181ded4930842b46e9507372f0b1b963James Dong * 770c1bc742181ded4930842b46e9507372f0b1b963James Dong * ppSrc - Double pointer to residual coefficient-position pair buffer 780c1bc742181ded4930842b46e9507372f0b1b963James Dong * output by CALVC decoding 790c1bc742181ded4930842b46e9507372f0b1b963James Dong * pPred - Pointer to the predicted 4x4 block; must be aligned on a 4-byte 800c1bc742181ded4930842b46e9507372f0b1b963James Dong * boundary 810c1bc742181ded4930842b46e9507372f0b1b963James Dong * predStep - Predicted frame step size in bytes; must be a multiple of 4 820c1bc742181ded4930842b46e9507372f0b1b963James Dong * dstStep - Destination frame step in bytes; must be a multiple of 4 830c1bc742181ded4930842b46e9507372f0b1b963James Dong * pDC - Pointer to the DC coefficient of this block, NULL if it doesn't 840c1bc742181ded4930842b46e9507372f0b1b963James Dong * exist 850c1bc742181ded4930842b46e9507372f0b1b963James Dong * QP - QP Quantization parameter. It should be QpC in chroma 4x4 block 860c1bc742181ded4930842b46e9507372f0b1b963James Dong * decoding, otherwise it should be QpY. 870c1bc742181ded4930842b46e9507372f0b1b963James Dong * AC - Flag indicating if at least one non-zero AC coefficient exists 880c1bc742181ded4930842b46e9507372f0b1b963James Dong * 890c1bc742181ded4930842b46e9507372f0b1b963James Dong * Output Arguments: 900c1bc742181ded4930842b46e9507372f0b1b963James Dong * 910c1bc742181ded4930842b46e9507372f0b1b963James Dong * pDst - pointer to the reconstructed 4x4 block data; must be aligned on a 920c1bc742181ded4930842b46e9507372f0b1b963James Dong * 4-byte boundary 930c1bc742181ded4930842b46e9507372f0b1b963James Dong * 940c1bc742181ded4930842b46e9507372f0b1b963James Dong * Return Value: 950c1bc742181ded4930842b46e9507372f0b1b963James Dong * OMX_Sts_NoErr, if the function runs without error. 960c1bc742181ded4930842b46e9507372f0b1b963James Dong * OMX_Sts_BadArgErr - bad arguments: if one of the following cases occurs: 970c1bc742181ded4930842b46e9507372f0b1b963James Dong * - pPred or pDst is NULL. 980c1bc742181ded4930842b46e9507372f0b1b963James Dong * - pPred or pDst is not 4-byte aligned. 990c1bc742181ded4930842b46e9507372f0b1b963James Dong * - predStep or dstStep is not a multiple of 4. 1000c1bc742181ded4930842b46e9507372f0b1b963James Dong * - AC !=0 and Qp is not in the range of [0-51] or ppSrc == NULL. 1010c1bc742181ded4930842b46e9507372f0b1b963James Dong * - AC ==0 && pDC ==NULL. 1020c1bc742181ded4930842b46e9507372f0b1b963James Dong * 1030c1bc742181ded4930842b46e9507372f0b1b963James Dong */ 1040c1bc742181ded4930842b46e9507372f0b1b963James Dong 1050c1bc742181ded4930842b46e9507372f0b1b963James DongOMXResult omxVCM4P10_DequantTransformResidualFromPairAndAdd( 1060c1bc742181ded4930842b46e9507372f0b1b963James Dong const OMX_U8 **ppSrc, 1070c1bc742181ded4930842b46e9507372f0b1b963James Dong const OMX_U8 *pPred, 1080c1bc742181ded4930842b46e9507372f0b1b963James Dong const OMX_S16 *pDC, 1090c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U8 *pDst, 1100c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_INT predStep, 1110c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_INT dstStep, 1120c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_INT QP, 1130c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_INT AC 1140c1bc742181ded4930842b46e9507372f0b1b963James Dong) 1150c1bc742181ded4930842b46e9507372f0b1b963James Dong{ 1160c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_S16 pBuffer[16+4]; 1170c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_S16 *pDelta; 1180c1bc742181ded4930842b46e9507372f0b1b963James Dong int i,x,y; 1190c1bc742181ded4930842b46e9507372f0b1b963James Dong 1200c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(pPred == NULL, OMX_Sts_BadArgErr); 1210c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(armNot4ByteAligned(pPred),OMX_Sts_BadArgErr); 1220c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(pDst == NULL, OMX_Sts_BadArgErr); 1230c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(armNot4ByteAligned(pDst), OMX_Sts_BadArgErr); 1240c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(predStep & 3, OMX_Sts_BadArgErr); 1250c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(dstStep & 3, OMX_Sts_BadArgErr); 1260c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(AC!=0 && (QP<0), OMX_Sts_BadArgErr); 1270c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(AC!=0 && (QP>51), OMX_Sts_BadArgErr); 1280c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(AC!=0 && ppSrc==NULL, OMX_Sts_BadArgErr); 1290c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(AC!=0 && *ppSrc==NULL, OMX_Sts_BadArgErr); 1300c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(AC==0 && pDC==NULL, OMX_Sts_BadArgErr); 1310c1bc742181ded4930842b46e9507372f0b1b963James Dong 1320c1bc742181ded4930842b46e9507372f0b1b963James Dong pDelta = armAlignTo8Bytes(pBuffer); 1330c1bc742181ded4930842b46e9507372f0b1b963James Dong 1340c1bc742181ded4930842b46e9507372f0b1b963James Dong for (i=0; i<16; i++) 1350c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1360c1bc742181ded4930842b46e9507372f0b1b963James Dong pDelta[i] = 0; 1370c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1380c1bc742181ded4930842b46e9507372f0b1b963James Dong if (AC) 1390c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1400c1bc742181ded4930842b46e9507372f0b1b963James Dong armVCM4P10_UnpackBlock4x4(ppSrc, pDelta); 1410c1bc742181ded4930842b46e9507372f0b1b963James Dong DequantLumaAC4x4(pDelta, QP); 1420c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1430c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pDC) 1440c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1450c1bc742181ded4930842b46e9507372f0b1b963James Dong pDelta[0] = pDC[0]; 1460c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1470c1bc742181ded4930842b46e9507372f0b1b963James Dong armVCM4P10_TransformResidual4x4(pDelta,pDelta); 1480c1bc742181ded4930842b46e9507372f0b1b963James Dong 1490c1bc742181ded4930842b46e9507372f0b1b963James Dong for (y=0; y<4; y++) 1500c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1510c1bc742181ded4930842b46e9507372f0b1b963James Dong for (x=0; x<4; x++) 1520c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1530c1bc742181ded4930842b46e9507372f0b1b963James Dong pDst[y*dstStep+x] = (OMX_U8)armClip(0,255,pPred[y*predStep+x] + pDelta[4*y+x]); 1540c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1550c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1560c1bc742181ded4930842b46e9507372f0b1b963James Dong 1570c1bc742181ded4930842b46e9507372f0b1b963James Dong return OMX_Sts_NoErr; 1580c1bc742181ded4930842b46e9507372f0b1b963James Dong} 1590c1bc742181ded4930842b46e9507372f0b1b963James Dong 1600c1bc742181ded4930842b46e9507372f0b1b963James Dong/* End of file */ 161