omxVCM4P10_InvTransformResidualAndAdd.c revision 78e52bfac041d71ce53b5b13c2abf78af742b09d
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: omxVCM4P10_InvTransformResidualAndAdd.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 inverse integer 4x4 transform 280c1bc742181ded4930842b46e9507372f0b1b963James Dong * 290c1bc742181ded4930842b46e9507372f0b1b963James Dong */ 300c1bc742181ded4930842b46e9507372f0b1b963James Dong 310c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "omxtypes.h" 320c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "armOMX.h" 330c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "omxVC.h" 340c1bc742181ded4930842b46e9507372f0b1b963James Dong 350c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "armCOMM.h" 360c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "armVC.h" 370c1bc742181ded4930842b46e9507372f0b1b963James Dong 380c1bc742181ded4930842b46e9507372f0b1b963James Dong/** 390c1bc742181ded4930842b46e9507372f0b1b963James Dong * Function: omxVCM4P10_InvTransformResidualAndAdd (6.3.5.7.1) 400c1bc742181ded4930842b46e9507372f0b1b963James Dong * 410c1bc742181ded4930842b46e9507372f0b1b963James Dong * Description: 420c1bc742181ded4930842b46e9507372f0b1b963James Dong * This function performs inverse an 4x4 integer transformation to produce 430c1bc742181ded4930842b46e9507372f0b1b963James Dong * the difference signal and then adds the difference to the prediction to get 440c1bc742181ded4930842b46e9507372f0b1b963James Dong * the reconstructed signal. 450c1bc742181ded4930842b46e9507372f0b1b963James Dong * 460c1bc742181ded4930842b46e9507372f0b1b963James Dong * Input Arguments: 470c1bc742181ded4930842b46e9507372f0b1b963James Dong * 480c1bc742181ded4930842b46e9507372f0b1b963James Dong * pSrcPred - Pointer to prediction signal. 4-byte alignment required. 490c1bc742181ded4930842b46e9507372f0b1b963James Dong * pDequantCoeff - Pointer to the transformed coefficients. 8-byte 500c1bc742181ded4930842b46e9507372f0b1b963James Dong * alignment required. 510c1bc742181ded4930842b46e9507372f0b1b963James Dong * iSrcPredStep - Step of the prediction buffer; must be a multiple of 4. 520c1bc742181ded4930842b46e9507372f0b1b963James Dong * iDstReconStep - Step of the destination reconstruction buffer; must be a 530c1bc742181ded4930842b46e9507372f0b1b963James Dong * multiple of 4. 540c1bc742181ded4930842b46e9507372f0b1b963James Dong * bAC - Indicate whether there is AC coefficients in the coefficients 550c1bc742181ded4930842b46e9507372f0b1b963James Dong * matrix. 560c1bc742181ded4930842b46e9507372f0b1b963James Dong * 570c1bc742181ded4930842b46e9507372f0b1b963James Dong * Output Arguments: 580c1bc742181ded4930842b46e9507372f0b1b963James Dong * 590c1bc742181ded4930842b46e9507372f0b1b963James Dong * pDstRecon -Pointer to the destination reconstruction buffer. 4-byte 600c1bc742181ded4930842b46e9507372f0b1b963James Dong * alignment required. 610c1bc742181ded4930842b46e9507372f0b1b963James Dong * 620c1bc742181ded4930842b46e9507372f0b1b963James Dong * Return Value: 630c1bc742181ded4930842b46e9507372f0b1b963James Dong * 640c1bc742181ded4930842b46e9507372f0b1b963James Dong * OMX_Sts_NoErr - no error 650c1bc742181ded4930842b46e9507372f0b1b963James Dong * OMX_Sts_BadArgErr - bad arguments; returned if any of the following 660c1bc742181ded4930842b46e9507372f0b1b963James Dong * conditions are true: 670c1bc742181ded4930842b46e9507372f0b1b963James Dong * - at least one of the following pointers is NULL: 680c1bc742181ded4930842b46e9507372f0b1b963James Dong * pSrcPred, pDequantCoeff, pDstRecon 690c1bc742181ded4930842b46e9507372f0b1b963James Dong * - pSrcPred is not aligned on a 4-byte boundary 700c1bc742181ded4930842b46e9507372f0b1b963James Dong * - iSrcPredStep or iDstReconStep is not a multiple of 4. 710c1bc742181ded4930842b46e9507372f0b1b963James Dong * - pDequantCoeff is not aligned on an 8-byte boundary 720c1bc742181ded4930842b46e9507372f0b1b963James Dong * 730c1bc742181ded4930842b46e9507372f0b1b963James Dong */ 740c1bc742181ded4930842b46e9507372f0b1b963James DongOMXResult omxVCM4P10_InvTransformResidualAndAdd( 750c1bc742181ded4930842b46e9507372f0b1b963James Dong const OMX_U8* pSrcPred, 760c1bc742181ded4930842b46e9507372f0b1b963James Dong const OMX_S16* pDequantCoeff, 770c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U8* pDstRecon, 780c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U32 iSrcPredStep, 790c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U32 iDstReconStep, 800c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U8 bAC 810c1bc742181ded4930842b46e9507372f0b1b963James Dong) 820c1bc742181ded4930842b46e9507372f0b1b963James Dong{ 830c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_INT i, j; 840c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_S16 In[16], Out[16]; 850c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_S32 Value; 860c1bc742181ded4930842b46e9507372f0b1b963James Dong 870c1bc742181ded4930842b46e9507372f0b1b963James Dong /* check for argument error */ 880c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(pSrcPred == NULL, OMX_Sts_BadArgErr) 890c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(armNot4ByteAligned(pSrcPred), OMX_Sts_BadArgErr) 900c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(pDequantCoeff == NULL, OMX_Sts_BadArgErr) 910c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(armNot8ByteAligned(pDequantCoeff), OMX_Sts_BadArgErr) 920c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(pDstRecon == NULL, OMX_Sts_BadArgErr) 930c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(armNot4ByteAligned(pDstRecon), OMX_Sts_BadArgErr) 940c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(bAC > 1, OMX_Sts_BadArgErr) 950c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(iSrcPredStep == 0 || iSrcPredStep & 3, OMX_Sts_BadArgErr) 960c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(iDstReconStep == 0 || iDstReconStep & 3, OMX_Sts_BadArgErr) 970c1bc742181ded4930842b46e9507372f0b1b963James Dong 980c1bc742181ded4930842b46e9507372f0b1b963James Dong if (bAC) 990c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1000c1bc742181ded4930842b46e9507372f0b1b963James Dong for (i = 0; i < 16; i++) 1010c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1020c1bc742181ded4930842b46e9507372f0b1b963James Dong In[i] = pDequantCoeff [i]; 1030c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1040c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1050c1bc742181ded4930842b46e9507372f0b1b963James Dong else 1060c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1070c1bc742181ded4930842b46e9507372f0b1b963James Dong /* Copy DC */ 1080c1bc742181ded4930842b46e9507372f0b1b963James Dong In[0] = pDequantCoeff [0]; 1090c1bc742181ded4930842b46e9507372f0b1b963James Dong 1100c1bc742181ded4930842b46e9507372f0b1b963James Dong for (i = 1; i < 16; i++) 1110c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1120c1bc742181ded4930842b46e9507372f0b1b963James Dong In[i] = 0; 1130c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1140c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1150c1bc742181ded4930842b46e9507372f0b1b963James Dong 1160c1bc742181ded4930842b46e9507372f0b1b963James Dong /* Residual Transform */ 1170c1bc742181ded4930842b46e9507372f0b1b963James Dong armVCM4P10_TransformResidual4x4 (Out, In); 1180c1bc742181ded4930842b46e9507372f0b1b963James Dong 1190c1bc742181ded4930842b46e9507372f0b1b963James Dong for (j = 0; j < 4; j++) 1200c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1210c1bc742181ded4930842b46e9507372f0b1b963James Dong for (i = 0; i < 4; i++) 1220c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1230c1bc742181ded4930842b46e9507372f0b1b963James Dong /* Add predition */ 1240c1bc742181ded4930842b46e9507372f0b1b963James Dong Value = (OMX_S32) Out [j * 4 + i] + pSrcPred [j * iSrcPredStep + i]; 1250c1bc742181ded4930842b46e9507372f0b1b963James Dong 1260c1bc742181ded4930842b46e9507372f0b1b963James Dong /* Saturate Value to OMX_U8 */ 1270c1bc742181ded4930842b46e9507372f0b1b963James Dong Value = armClip (0, 255, Value); 1280c1bc742181ded4930842b46e9507372f0b1b963James Dong 1290c1bc742181ded4930842b46e9507372f0b1b963James Dong pDstRecon[j * iDstReconStep + i] = (OMX_U8) Value; 1300c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1310c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1320c1bc742181ded4930842b46e9507372f0b1b963James Dong 1330c1bc742181ded4930842b46e9507372f0b1b963James Dong return OMX_Sts_NoErr; 1340c1bc742181ded4930842b46e9507372f0b1b963James Dong} 1350c1bc742181ded4930842b46e9507372f0b1b963James Dong 1360c1bc742181ded4930842b46e9507372f0b1b963James Dong/***************************************************************************** 1370c1bc742181ded4930842b46e9507372f0b1b963James Dong * END OF FILE 1380c1bc742181ded4930842b46e9507372f0b1b963James Dong *****************************************************************************/ 1390c1bc742181ded4930842b46e9507372f0b1b963James Dong 140