omxVCM4P10_DeblockChroma_I.c revision 0c1bc742181ded4930842b46e9507372f0b1b963 
1/* ----------------------------------------------------------------
2 *
3 *
4 * File Name:  omxVCM4P10_DeblockChroma_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 intra chroma 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 * Function: omxVCM4P10_DeblockChroma_I
26 *
27 * Description:
28 * Performs deblocking filtering on all edges of the chroma macroblock (16x16).
29 *
30 * Remarks:
31 *
32 * Parameters:
33 * [in]	pSrcDst         pointer to the input macroblock. Must be 8-byte aligned.
34 * [in]	srcdstStep      Step of the arrays
35 * [in]	pAlpha          pointer to a 2x2 array of alpha thresholds, organized as follows: { external
36 *                          vertical edge, internal  vertical edge, external
37 *                         horizontal edge, internal horizontal edge }
38 * [in]	pBeta			pointer to a 2x2 array of beta thresholds, organized as follows: { external
39 *                              vertical edge, internal vertical edge, external  horizontal edge,
40 *                              internal  horizontal edge }
41 * [in]	pThresholds		AArray of size  8x2 of Thresholds (TC0) (values for the left or
42 *                               above edge of each 4x2 or 2x4 block, arranged in  vertical block order
43 *                               and then in  horizontal block order)
44 * [in]	pBS				array of size 16x2 of BS parameters (arranged in scan block order for vertical edges and then horizontal edges);
45 *                         valid in the range [0,4] with the following restrictions: i) pBS[i]== 4 may occur only for 0<=i<=3, ii) pBS[i]== 4 if and only if pBS[i^1]== 4.  Must be 4-byte aligned.
46 * [out]	pSrcDst		pointer to filtered output macroblock
47 *
48 * Return Value:
49 * OMX_Sts_NoErr - no error
50 * OMX_Sts_BadArgErr - bad arguments
51 *   - Either of the pointers in pSrcDst, pAlpha, pBeta, pTresholds, or pBS is NULL.
52 *   - pSrcDst is not 8-byte aligned.
53 *   - either pThresholds or pBS is not 4-byte aligned.
54 *   - pBS is out of range, i.e., one of the following conditions is true: pBS[i]<0, pBS[i]>4, pBS[i]==4 for i>=4, or (pBS[i]==4 && pBS[i^1]!=4) for 0<=i<=3.
55 *   - srcdstStep is not a multiple of 8.
56 *
57 */
58OMXResult omxVCM4P10_DeblockChroma_I(
59	OMX_U8* pSrcDst,
60	OMX_S32 srcdstStep,
61	const OMX_U8* pAlpha,
62	const OMX_U8* pBeta,
63	const OMX_U8* pThresholds,
64    const OMX_U8 *pBS
65)
66{
67    OMXResult errorCode;
68
69    armRetArgErrIf(pSrcDst == NULL,                 OMX_Sts_BadArgErr);
70    armRetArgErrIf(armNot8ByteAligned(pSrcDst),     OMX_Sts_BadArgErr);
71    armRetArgErrIf(srcdstStep & 7,                  OMX_Sts_BadArgErr);
72    armRetArgErrIf(pAlpha == NULL,                  OMX_Sts_BadArgErr);
73    armRetArgErrIf(pBeta == NULL,                   OMX_Sts_BadArgErr);
74    armRetArgErrIf(pThresholds == NULL,             OMX_Sts_BadArgErr);
75    armRetArgErrIf(armNot4ByteAligned(pThresholds), OMX_Sts_BadArgErr);
76    armRetArgErrIf(pBS == NULL,                     OMX_Sts_BadArgErr);
77    armRetArgErrIf(armNot4ByteAligned(pBS),         OMX_Sts_BadArgErr);
78
79    errorCode = omxVCM4P10_FilterDeblockingChroma_VerEdge_I(
80        pSrcDst, srcdstStep, pAlpha, pBeta, pThresholds, pBS);
81
82    armRetArgErrIf(errorCode != OMX_Sts_NoErr, errorCode)
83
84    errorCode = omxVCM4P10_FilterDeblockingChroma_HorEdge_I(
85        pSrcDst, srcdstStep, pAlpha+2, pBeta+2, pThresholds+8, pBS+16);
86
87    return errorCode;
88}
89