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_TransformQuant_ChromaDC.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 4x4 hadamard transform of chroma DC 280c1bc742181ded4930842b46e9507372f0b1b963James Dong * coefficients and quantization 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 "armVC.h" 370c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "armCOMM.h" 380c1bc742181ded4930842b46e9507372f0b1b963James Dong 390c1bc742181ded4930842b46e9507372f0b1b963James Dong/** 400c1bc742181ded4930842b46e9507372f0b1b963James Dong * Function: omxVCM4P10_TransformQuant_ChromaDC (6.3.5.6.1) 410c1bc742181ded4930842b46e9507372f0b1b963James Dong * 420c1bc742181ded4930842b46e9507372f0b1b963James Dong * Description: 430c1bc742181ded4930842b46e9507372f0b1b963James Dong * This function performs 2x2 Hadamard transform of chroma DC coefficients 440c1bc742181ded4930842b46e9507372f0b1b963James Dong * and then quantizes the coefficients. 450c1bc742181ded4930842b46e9507372f0b1b963James Dong * 460c1bc742181ded4930842b46e9507372f0b1b963James Dong * Input Arguments: 470c1bc742181ded4930842b46e9507372f0b1b963James Dong * 480c1bc742181ded4930842b46e9507372f0b1b963James Dong * pSrcDst - Pointer to the 2x2 array of chroma DC coefficients. 8-byte 490c1bc742181ded4930842b46e9507372f0b1b963James Dong * alignment required. 500c1bc742181ded4930842b46e9507372f0b1b963James Dong * iQP - Quantization parameter; must be in the range [0,51]. 510c1bc742181ded4930842b46e9507372f0b1b963James Dong * bIntra - Indicate whether this is an INTRA block. 1-INTRA, 0-INTER 520c1bc742181ded4930842b46e9507372f0b1b963James Dong * 530c1bc742181ded4930842b46e9507372f0b1b963James Dong * Output Arguments: 540c1bc742181ded4930842b46e9507372f0b1b963James Dong * 550c1bc742181ded4930842b46e9507372f0b1b963James Dong * pSrcDst - Pointer to transformed and quantized coefficients. 8-byte 560c1bc742181ded4930842b46e9507372f0b1b963James Dong * alignment required. 570c1bc742181ded4930842b46e9507372f0b1b963James Dong * 580c1bc742181ded4930842b46e9507372f0b1b963James Dong * Return Value: 590c1bc742181ded4930842b46e9507372f0b1b963James Dong * 600c1bc742181ded4930842b46e9507372f0b1b963James Dong * OMX_Sts_NoErr - no error 610c1bc742181ded4930842b46e9507372f0b1b963James Dong * OMX_Sts_BadArgErr - bad arguments; returned if any of the following 620c1bc742181ded4930842b46e9507372f0b1b963James Dong * conditions are true: 630c1bc742181ded4930842b46e9507372f0b1b963James Dong * - at least one of the following pointers is NULL: 640c1bc742181ded4930842b46e9507372f0b1b963James Dong * pSrcDst 650c1bc742181ded4930842b46e9507372f0b1b963James Dong * - pSrcDst is not aligned on an 8-byte boundary 660c1bc742181ded4930842b46e9507372f0b1b963James Dong * 670c1bc742181ded4930842b46e9507372f0b1b963James Dong */ 680c1bc742181ded4930842b46e9507372f0b1b963James DongOMXResult omxVCM4P10_TransformQuant_ChromaDC( 690c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_S16* pSrcDst, 700c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U32 iQP, 710c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_U8 bIntra 720c1bc742181ded4930842b46e9507372f0b1b963James Dong) 730c1bc742181ded4930842b46e9507372f0b1b963James Dong{ 740c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_INT i, j; 750c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_S32 m[2][2]; 760c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_S32 Value; 770c1bc742181ded4930842b46e9507372f0b1b963James Dong OMX_S32 QbitsPlusOne, Two_f, MF00; 780c1bc742181ded4930842b46e9507372f0b1b963James Dong 790c1bc742181ded4930842b46e9507372f0b1b963James Dong /* Check for argument error */ 800c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(pSrcDst == NULL, OMX_Sts_BadArgErr); 810c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(armNot8ByteAligned(pSrcDst), OMX_Sts_BadArgErr); 820c1bc742181ded4930842b46e9507372f0b1b963James Dong armRetArgErrIf(iQP > 51, OMX_Sts_BadArgErr); 830c1bc742181ded4930842b46e9507372f0b1b963James Dong 840c1bc742181ded4930842b46e9507372f0b1b963James Dong /* Hadamard Transform for 2x2 block */ 850c1bc742181ded4930842b46e9507372f0b1b963James Dong m[0][0] = pSrcDst[0] + pSrcDst[1] + pSrcDst[2] + pSrcDst[3]; 860c1bc742181ded4930842b46e9507372f0b1b963James Dong m[0][1] = pSrcDst[0] - pSrcDst[1] + pSrcDst[2] - pSrcDst[3]; 870c1bc742181ded4930842b46e9507372f0b1b963James Dong m[1][0] = pSrcDst[0] + pSrcDst[1] - pSrcDst[2] - pSrcDst[3]; 880c1bc742181ded4930842b46e9507372f0b1b963James Dong m[1][1] = pSrcDst[0] - pSrcDst[1] - pSrcDst[2] + pSrcDst[3]; 890c1bc742181ded4930842b46e9507372f0b1b963James Dong 900c1bc742181ded4930842b46e9507372f0b1b963James Dong /* Quantization */ 910c1bc742181ded4930842b46e9507372f0b1b963James Dong QbitsPlusOne = ARM_M4P10_Q_OFFSET + 1 + (iQP / 6); /*floor (QP/6)*/ 920c1bc742181ded4930842b46e9507372f0b1b963James Dong MF00 = armVCM4P10_MFMatrix [iQP % 6][0]; 930c1bc742181ded4930842b46e9507372f0b1b963James Dong 940c1bc742181ded4930842b46e9507372f0b1b963James Dong Two_f = (1 << QbitsPlusOne) / (bIntra ? 3 : 6); /* 3->INTRA, 6->INTER */ 950c1bc742181ded4930842b46e9507372f0b1b963James Dong 960c1bc742181ded4930842b46e9507372f0b1b963James Dong /* Scaling */ 970c1bc742181ded4930842b46e9507372f0b1b963James Dong for (j = 0; j < 2; j++) 980c1bc742181ded4930842b46e9507372f0b1b963James Dong { 990c1bc742181ded4930842b46e9507372f0b1b963James Dong for (i = 0; i < 2; i++) 1000c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1010c1bc742181ded4930842b46e9507372f0b1b963James Dong Value = (armAbs(m[j][i]) * MF00 + Two_f) >> QbitsPlusOne; 1020c1bc742181ded4930842b46e9507372f0b1b963James Dong pSrcDst[j * 2 + i] = (OMX_S16)((m[j][i] < 0) ? -Value : Value); 1030c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1040c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1050c1bc742181ded4930842b46e9507372f0b1b963James Dong 1060c1bc742181ded4930842b46e9507372f0b1b963James Dong return OMX_Sts_NoErr; 1070c1bc742181ded4930842b46e9507372f0b1b963James Dong} 1080c1bc742181ded4930842b46e9507372f0b1b963James Dong 1090c1bc742181ded4930842b46e9507372f0b1b963James Dong/***************************************************************************** 1100c1bc742181ded4930842b46e9507372f0b1b963James Dong * END OF FILE 1110c1bc742181ded4930842b46e9507372f0b1b963James Dong *****************************************************************************/ 1120c1bc742181ded4930842b46e9507372f0b1b963James Dong 113