1 ;// 2 ;// Copyright (C) 2007-2008 ARM Limited 3 ;// 4 ;// Licensed under the Apache License, Version 2.0 (the "License"); 5 ;// you may not use this file except in compliance with the License. 6 ;// You may obtain a copy of the License at 7 ;// 8 ;// http://www.apache.org/licenses/LICENSE-2.0 9 ;// 10 ;// Unless required by applicable law or agreed to in writing, software 11 ;// distributed under the License is distributed on an "AS IS" BASIS, 12 ;// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 ;// See the License for the specific language governing permissions and 14 ;// limitations under the License. 15 ;// 16 ;// 17 ;// 18 ;// File Name: omxVCM4P2_IDCT8x8blk_s.s 19 ;// OpenMAX DL: v1.0.2 20 ;// Revision: 9641 21 ;// Date: Thursday, February 7, 2008 22 ;// 23 ;// 24 ;// 25 ;// 26 27 ;// Function: 28 ;// omxVCM4P2_IDCT8x8blk 29 ;// 30 ;// Include headers 31 INCLUDE omxtypes_s.h 32 INCLUDE armCOMM_s.h 33 34 ;// Define cpu variants 35 M_VARIANTS ARM1136JS 36 37 INCLUDE armCOMM_IDCT_s.h 38 39 IMPORT armCOMM_IDCTPreScale 40 ;// 41 ;// Function prototype 42 ;// 43 ;// OMXResult 44 ;// omxVCM4P2_IDCT8x8blk(const OMX_S16* pSrc, 45 ;// OMX_S16* pDst) 46 ;// 47 48 IF ARM1136JS :LOR: CortexA8 49 M_ALLOC4 ppDest, 4 50 M_ALLOC4 pStride, 4 51 M_ALLOC8 pBlk, 2*8*8 52 ENDIF 53 54 IF ARM1136JS 55 M_START omxVCM4P2_IDCT8x8blk, r11 56 ENDIF 57 58 59 IF ARM1136JS :LOR: CortexA8 60 61 ;// Declare input registers 62 pSrc RN 0 63 pDst RN 1 64 65 ;// Declare other intermediate registers 66 Result RN 0 67 68 ;// Prototype for macro M_IDCT 69 ;// pSrc RN 0 ;// source data buffer 70 ;// Stride RN 1 ;// destination stride in bytes 71 ;// pDest RN 2 ;// destination data buffer 72 ;// pScale RN 3 ;// pointer to scaling table 73 74 pSrc RN 0 75 Stride RN 1 76 pDest RN 2 77 pScale RN 3 78 79 MOV pDest, pDst 80 LDR pScale, =armCOMM_IDCTPreScale 81 M_IDCT s9, s16, 16 82 MOV Result, #OMX_Sts_NoErr 83 M_END 84 ENDIF 85 ;// ARM1136JS :LOR: CortexA8 86 87 END 88
