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