1/* ----------------------------------------------------------------
2 *
3 *
4 * File Name:  omxVCM4P10_DeblockLuma_I.c
5 * OpenMAX DL: v1.0.2
6 * Revision:   9641
7 * Date:       Thursday, February 7, 2008
8 *
9 * (c) Copyright 2007-2008 ARM Limited. All Rights Reserved.
10 *
11 *
12 *
13 * H.264 luma deblock
14 *
15 */
16
17#include "omxtypes.h"
18#include "armOMX.h"
19#include "omxVC.h"
20
21#include "armCOMM.h"
22#include "armVC.h"
23
24
25/**
26 * Function:  omxVCM4P10_DeblockLuma_I   (6.3.3.3.5)
27 *
28 * Description:
29 * This function performs in-place deblock filtering the horizontal and
30 * vertical edges of a luma macroblock (16x16).
31 *
32 * Input Arguments:
33 *
34 *   pSrcDst - pointer to the input macroblock; must be 16-byte aligned.
35 *   srcdstStep - image width; must be a multiple of 16.
36 *   pAlpha - pointer to a 2x2 table of alpha thresholds, organized as
37 *            follows: {external vertical edge, internal vertical edge,
38 *            external horizontal edge, internal horizontal edge }.  Per
39 *            [ISO14496-10] alpha values must be in the range [0,255].
40 *   pBeta - pointer to a 2x2 table of beta thresholds, organized as follows:
41 *            {external vertical edge, internal vertical edge, external
42 *            horizontal edge, internal horizontal edge }.  Per [ISO14496-10]
43 *            beta values must be in the range [0,18].
44 *   pThresholds - pointer to a 16x2 table of threshold (TC0), organized as
45 *            follows: {values for the left or above edge of each 4x4 block,
46 *            arranged in vertical block order and then in horizontal block
47 *            order}; must be aligned on a 4-byte boundary.  Per [ISO14496-10]
48 *            values must be in the range [0,25].
49 *   pBS - pointer to a 16x2 table of BS parameters arranged in scan block
50 *            order for vertical edges and then horizontal edges; valid in the
51 *            range [0,4] with the following restrictions: i) pBS[i]== 4 may
52 *            occur only for 0<=i<=3, ii) pBS[i]== 4 if and only if pBS[i^3]==
53 *            4. Must be 4-byte aligned.
54 *
55 * Output Arguments:
56 *
57 *   pSrcDst - pointer to filtered output macroblock.
58 *
59 * Return Value:
60 *
61 *    OMX_Sts_NoErr - no error
62 *    OMX_Sts_BadArgErr - bad arguments
63 *    -     one or more of the following pointers is NULL: pSrcDst, pAlpha,
64 *              pBeta, pThresholds or pBS. pSrcDst is not 16-byte aligned.
65 *              either pThresholds or pBS is not aligned on a 4-byte boundary.
66 *    -    one or more entries in the table pAlpha[0..3] is outside the range
67 *              [0,255].
68 *    -    one or more entries in the table pBeta[0..3] is outside the range
69 *              [0,18].
70 *    -    one or more entries in the table pThresholds[0..31]is outside of
71 *              the range [0,25].
72 *    -    pBS is out of range, i.e., one of the following conditions is true:
73 *              pBS[i]<0, pBS[i]>4, pBS[i]==4 for i>=4, or
74 *             (pBS[i]==4 && pBS[i^3]!=4) for 0<=i<=3.
75 *    -    srcdstStep is not a multiple of 16.
76 *
77 */
78
79OMXResult omxVCM4P10_DeblockLuma_I(
80	OMX_U8* pSrcDst,
81	OMX_S32 srcdstStep,
82	const OMX_U8* pAlpha,
83	const OMX_U8* pBeta,
84	const OMX_U8* pThresholds,
85	const OMX_U8 *pBS
86)
87{
88    OMXResult errorCode;
89
90    armRetArgErrIf(pSrcDst == NULL,             OMX_Sts_BadArgErr);
91    armRetArgErrIf(armNot16ByteAligned(pSrcDst), OMX_Sts_BadArgErr);
92    armRetArgErrIf(srcdstStep & 15,              OMX_Sts_BadArgErr);
93    armRetArgErrIf(pAlpha == NULL,              OMX_Sts_BadArgErr);
94    armRetArgErrIf(pBeta == NULL,               OMX_Sts_BadArgErr);
95    armRetArgErrIf(pThresholds == NULL,         OMX_Sts_BadArgErr);
96    armRetArgErrIf(armNot4ByteAligned(pThresholds), OMX_Sts_BadArgErr);
97    armRetArgErrIf(pBS == NULL,                     OMX_Sts_BadArgErr);
98    armRetArgErrIf(armNot4ByteAligned(pBS),         OMX_Sts_BadArgErr);
99
100    errorCode = omxVCM4P10_FilterDeblockingLuma_VerEdge_I(
101        pSrcDst, srcdstStep, pAlpha, pBeta, pThresholds, pBS);
102
103    armRetArgErrIf(errorCode != OMX_Sts_NoErr, errorCode)
104
105    errorCode = omxVCM4P10_FilterDeblockingLuma_HorEdge_I(
106        pSrcDst, srcdstStep, pAlpha+2, pBeta+2, pThresholds+16, pBS+16);
107
108    return errorCode;
109}
110