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      1 /******************************************************************************
      2  *
      3  * Copyright (C) 2015 The Android Open Source Project
      4  *
      5  * Licensed under the Apache License, Version 2.0 (the "License");
      6  * you may not use this file except in compliance with the License.
      7  * You may obtain a copy of the License at:
      8  *
      9  * http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  * Unless required by applicable law or agreed to in writing, software
     12  * distributed under the License is distributed on an "AS IS" BASIS,
     13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  * See the License for the specific language governing permissions and
     15  * limitations under the License.
     16  *
     17  *****************************************************************************
     18  * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
     19 */
     20 /**
     21 *******************************************************************************
     22 * @file
     23 *  impeg2_utils.c
     24 *
     25 * @brief
     26 *  Contains utility function definitions for MPEG2 codec
     27 *
     28 * @author
     29 *  Harish
     30 *
     31 * @par List of Functions:
     32 * - impeg2_memset0_16bit_8x8_linear_block()
     33 * - impeg2_memset_8bit_8x8_block()
     34 *
     35 * @remarks
     36 *  None
     37 *
     38 *******************************************************************************
     39 */
     40 
     41 #include <stdio.h>
     42 #include <string.h>
     43 #include "iv_datatypedef.h"
     44 #include "impeg2_defs.h"
     45 
     46 /*******************************************************************************
     47 *  Function Name   : impeg2_memset0_16bit_8x8_linear_block
     48 *
     49 *  Description     : memsets resudial buf to 0
     50 *
     51 *  Arguments       : destination buffer
     52 *
     53 *  Values Returned : None
     54 *******************************************************************************/
     55 
     56 
     57 void impeg2_memset0_16bit_8x8_linear_block (WORD16 *pi2_buf)
     58 {
     59         memset(pi2_buf,0,64 * sizeof(WORD16));
     60 }
     61 
     62 
     63 
     64 /*******************************************************************************
     65 *  Function Name   : impeg2_memset_8bit_8x8_block
     66 *
     67 *  Description     : memsets residual buf to value
     68 *
     69 *  Arguments       : destination buffer, value and stride
     70 *
     71 *  Values Returned : None
     72 *******************************************************************************/
     73 
     74 
     75 void impeg2_memset_8bit_8x8_block(UWORD8 *pu1_dst, WORD32 u4_dc_val, WORD32 u4_dst_wd)
     76 {
     77     WORD32 j;
     78 
     79     for(j = BLK_SIZE; j > 0; j--)
     80     {
     81         memset(pu1_dst, u4_dc_val, BLK_SIZE);
     82         pu1_dst += u4_dst_wd;
     83     }
     84 }
     85 
     86 
     87 
     88