/src/libmpeg2/common/impeg2_mem_func.c
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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 | 16.8M | { |
59 | 16.8M | memset(pi2_buf,0,64 * sizeof(WORD16)); |
60 | 16.8M | } |
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 | 168M | { |
77 | 168M | WORD32 j; |
78 | | |
79 | 1.52G | for(j = BLK_SIZE; j > 0; j--) |
80 | 1.35G | { |
81 | 1.35G | memset(pu1_dst, u4_dc_val, BLK_SIZE); |
82 | 1.35G | pu1_dst += u4_dst_wd; |
83 | 1.35G | } |
84 | 168M | } |
85 | | |
86 | | |
87 | | |