1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
/*
* Copyright (C) 2007-2008 ARM Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
/**
*
* File Name: omxVCM4P10_InterpolateLuma.c
* OpenMAX DL: v1.0.2
* Revision: 9641
* Date: Thursday, February 7, 2008
*
*
*
* Description:
* This function will calculate Performs quarter-pixel interpolation
*
*/
#include "omxtypes.h"
#include "armOMX.h"
#include "omxVC.h"
#include "armVC.h"
#include "armCOMM.h"
/**
* Function: omxVCM4P10_InterpolateLuma (6.3.3.2.1)
*
* Description:
* Performs quarter-pixel interpolation for inter luma MB. It is assumed that
* the frame is already padded when calling this function.
*
* Input Arguments:
*
* pSrc -Pointer to the source reference frame buffer
* srcStep -reference frame step, in bytes; must be a multiple of roi.width
* dstStep -destination frame step, in bytes; must be a multiple of
* roi.width
* dx -Fractional part of horizontal motion vector component in 1/4 pixel
* unit; valid in the range [0,3]
* dy -Fractional part of vertical motion vector y component in 1/4 pixel
* unit; valid in the range [0,3]
* roi -Dimension of the interpolation region; the parameters roi.width and
* roi.height must be equal to either 4, 8, or 16.
*
* Output Arguments:
*
* pDst -Pointer to the destination frame buffer if roi.width==4, 4-byte
* alignment required if roi.width==8, 8-byte alignment required
* if roi.width==16, 16-byte alignment required
*
* Return Value:
* If the function runs without error, it returns OMX_Sts_NoErr.
* If one of the following cases occurs, the function returns
* OMX_Sts_BadArgErr:
* pSrc or pDst is NULL.
* srcStep or dstStep < roi.width.
* dx or dy is out of range [0,3].
* roi.width or roi.height is out of range {4, 8, 16}.
* roi.width is equal to 4, but pDst is not 4 byte aligned.
* roi.width is equal to 8 or 16, but pDst is not 8 byte aligned.
* srcStep or dstStep is not a multiple of 8.
*
*/
OMXResult omxVCM4P10_InterpolateLuma (
const OMX_U8* pSrc,
OMX_S32 srcStep,
OMX_U8* pDst,
OMX_S32 dstStep,
OMX_S32 dx,
OMX_S32 dy,
OMXSize roi
)
{
/* check for argument error */
armRetArgErrIf(pSrc == NULL, OMX_Sts_BadArgErr)
armRetArgErrIf(pDst == NULL, OMX_Sts_BadArgErr)
armRetArgErrIf(srcStep < roi.width, OMX_Sts_BadArgErr)
armRetArgErrIf(dstStep < roi.width, OMX_Sts_BadArgErr)
armRetArgErrIf(dx < 0, OMX_Sts_BadArgErr)
armRetArgErrIf(dx > 3, OMX_Sts_BadArgErr)
armRetArgErrIf(dy < 0, OMX_Sts_BadArgErr)
armRetArgErrIf(dy > 3, OMX_Sts_BadArgErr)
armRetArgErrIf((roi.width != 4) && (roi.width != 8) && (roi.width != 16), OMX_Sts_BadArgErr)
armRetArgErrIf((roi.height != 4) && (roi.height != 8) && (roi.height != 16), OMX_Sts_BadArgErr)
armRetArgErrIf((roi.width == 4) && armNot4ByteAligned(pDst), OMX_Sts_BadArgErr)
armRetArgErrIf((roi.width == 8) && armNot8ByteAligned(pDst), OMX_Sts_BadArgErr)
armRetArgErrIf((roi.width == 16) && armNot16ByteAligned(pDst), OMX_Sts_BadArgErr)
armRetArgErrIf(srcStep & 7, OMX_Sts_BadArgErr)
armRetArgErrIf(dstStep & 7, OMX_Sts_BadArgErr)
return armVCM4P10_Interpolate_Luma
(pSrc, srcStep, pDst, dstStep, roi.width, roi.height, dx, dy);
}
/*****************************************************************************
* END OF FILE
*****************************************************************************/
|
