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T1: remove unused code in decoder

This commit is contained in:
Even Rouault 2017-05-22 23:30:30 +02:00
parent 4068363ff5
commit c76a592131
2 changed files with 22 additions and 88 deletions
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106
src/lib/openjp2/t1.c
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@ -57,7 +57,6 @@ static OPJ_BYTE opj_t1_enc_getctxno_sc(OPJ_UINT32 fX, OPJ_UINT32 pfX,
OPJ_UINT32 nfX, OPJ_UINT32 ci);
static OPJ_BYTE opj_t1_getctxno_sc(OPJ_UINT32 f);
static INLINE OPJ_UINT32 opj_t1_enc_getctxno_mag(OPJ_UINT32 f);
static INLINE OPJ_UINT32 opj_t1_getctxno_mag(OPJ_UINT32 f);
static OPJ_BYTE opj_t1_enc_getspb(OPJ_UINT32 fX, OPJ_UINT32 pfX, OPJ_UINT32 nfX,
OPJ_UINT32 ci);
static OPJ_BYTE opj_t1_getspb(OPJ_UINT32 f);
@ -309,13 +308,6 @@ static INLINE OPJ_UINT32 opj_t1_enc_getctxno_mag(OPJ_UINT32 f)
return tmp2;
}
static OPJ_UINT32 opj_t1_getctxno_mag(OPJ_UINT32 f)
{
OPJ_UINT32 tmp1 = (f & T1_SIG_OTH) ? T1_CTXNO_MAG + 1 : T1_CTXNO_MAG;
OPJ_UINT32 tmp2 = (f & T1_REFINE) ? T1_CTXNO_MAG + 2 : tmp1;
return (tmp2);
}
static OPJ_BYTE opj_t1_enc_getspb(OPJ_UINT32 fX, OPJ_UINT32 pfX, OPJ_UINT32 nfX,
OPJ_UINT32 ci)
{
@ -441,7 +433,9 @@ static INLINE void opj_t1_updateflags(opj_flag_t *flagsp, OPJ_UINT32 s,
np[1] |= T1_SIG_SW;
flagsp[-1] |= (opj_flag_t)(flag_N << 1U);
#ifdef CONSISTENCY_CHECK
flagsp[0] |= T1_SIG;
#endif
flagsp[1] |= (opj_flag_t)(flag_N << 3U);
sp[-1] |= T1_SIG_NE;
@ -1582,6 +1576,14 @@ static void opj_t1_enc_clnpass(
#define MACRO_t1_flags_internal(x,y,flags_stride) t1->flags[((x)*(flags_stride))+(y)]
#ifdef CONSISTENCY_CHECK
#define REMOVE_VISIT_FLAG(flagptr) *(flagptr) &= (opj_flag_t)~T1_VISIT
#define T1_SIG_OR_VISIT (T1_SIG | T1_VISIT)
#else
#define REMOVE_VISIT_FLAG(flagptr) do {} while(0)
#define T1_SIG_OR_VISIT 0
#endif
#define opj_t1_dec_clnpass_internal(consistency_check, t1, bpno, cblksty, w, h, flags_stride) \
{ \
OPJ_INT32 one, half, oneplushalf, agg, runlen, vsc; \
@ -1652,7 +1654,7 @@ static void opj_t1_enc_clnpass(
assert( agg == !((MACRO_t1_flags_internal(1 + k, 1 + i,flags_stride) | \
MACRO_t1_flags_internal(1 + k + 1, 1 + i,flags_stride) | \
MACRO_t1_flags_internal(1 + k + 2, 1 + i,flags_stride) | \
MACRO_t1_flags_internal(1 + k + 3, 1 + i,flags_stride)) & (T1_SIG | T1_VISIT | T1_SIG_OTH)) ); \
MACRO_t1_flags_internal(1 + k + 3, 1 + i,flags_stride)) & (T1_SIG_OR_VISIT | T1_SIG_OTH)) ); \
} \
if (agg) { \
opj_mqc_setcurctx(mqc, T1_CTXNO_AGG); \
@ -1675,32 +1677,32 @@ static void opj_t1_enc_clnpass(
} \
} else { \
flags2 += flags_stride; \
if( consistency_check ) { assert( (!(colflags & (T1_COLFLAG_SIG_ROW_0 | T1_COLFLAG_VISIT_ROW_0))) == (!(*flags2 & (T1_SIG | T1_VISIT))) ); } \
if( consistency_check ) { assert( (!(colflags & (T1_COLFLAG_SIG_ROW_0 | T1_COLFLAG_VISIT_ROW_0))) == (!(*flags2 & (T1_SIG_OR_VISIT))) ); } \
if (!(colflags & (T1_COLFLAG_SIG_ROW_0 | T1_COLFLAG_VISIT_ROW_0))) {\
opj_t1_dec_clnpass_step_only_if_flag_not_sig_visit(t1, flags2, colflags2, data2, oneplushalf, 0U, flags_stride); \
} \
if( consistency_check ) *flags2 &= (opj_flag_t)~T1_VISIT; \
if( consistency_check ) REMOVE_VISIT_FLAG(*flags2); \
data2 += w; \
flags2 += flags_stride; \
if( consistency_check ) { assert( (!(colflags & (T1_COLFLAG_SIG_ROW_1 | T1_COLFLAG_VISIT_ROW_1))) == (!(*flags2 & (T1_SIG | T1_VISIT))) ); } \
if( consistency_check ) { assert( (!(colflags & (T1_COLFLAG_SIG_ROW_1 | T1_COLFLAG_VISIT_ROW_1))) == (!(*flags2 & (T1_SIG_OR_VISIT))) ); } \
if (!(colflags & (T1_COLFLAG_SIG_ROW_1 | T1_COLFLAG_VISIT_ROW_1))) {\
opj_t1_dec_clnpass_step_only_if_flag_not_sig_visit(t1, flags2, colflags2, data2, oneplushalf, 1U, flags_stride); \
} \
if( consistency_check ) *flags2 &= (opj_flag_t)~T1_VISIT; \
if( consistency_check ) REMOVE_VISIT_FLAG(*flags2); \
data2 += w; \
flags2 += flags_stride; \
if( consistency_check ) { assert( (!(colflags & (T1_COLFLAG_SIG_ROW_2 | T1_COLFLAG_VISIT_ROW_2))) == (!(*flags2 & (T1_SIG | T1_VISIT))) ); } \
if( consistency_check ) { assert( (!(colflags & (T1_COLFLAG_SIG_ROW_2 | T1_COLFLAG_VISIT_ROW_2))) == (!(*flags2 & (T1_SIG_OR_VISIT))) ); } \
if (!(colflags & (T1_COLFLAG_SIG_ROW_2 | T1_COLFLAG_VISIT_ROW_2))) {\
opj_t1_dec_clnpass_step_only_if_flag_not_sig_visit(t1, flags2, colflags2, data2, oneplushalf, 2U, flags_stride); \
} \
if( consistency_check ) *flags2 &= (opj_flag_t)~T1_VISIT; \
if( consistency_check ) REMOVE_VISIT_FLAG(*flags2); \
data2 += w; \
flags2 += flags_stride; \
if( consistency_check ) { assert( (!(colflags & (T1_COLFLAG_SIG_ROW_3 | T1_COLFLAG_VISIT_ROW_3))) == (!(*flags2 & (T1_SIG | T1_VISIT))) ); } \
if( consistency_check ) { assert( (!(colflags & (T1_COLFLAG_SIG_ROW_3 | T1_COLFLAG_VISIT_ROW_3))) == (!(*flags2 & (T1_SIG_OR_VISIT))) ); } \
if (!(colflags & (T1_COLFLAG_SIG_ROW_3 | T1_COLFLAG_VISIT_ROW_3))) {\
opj_t1_dec_clnpass_step_only_if_flag_not_sig_visit(t1, flags2, colflags2, data2, oneplushalf, 3U, flags_stride); \
} \
if( consistency_check ) *flags2 &= (opj_flag_t)~T1_VISIT; \
if( consistency_check ) REMOVE_VISIT_FLAG(*flags2); \
data2 += w; \
} \
*colflags2 &= (opj_colflag_t)~(T1_COLFLAG_VISIT_ROW_0 | T1_COLFLAG_VISIT_ROW_1 | T1_COLFLAG_VISIT_ROW_2 | T1_COLFLAG_VISIT_ROW_3); \
@ -2642,73 +2644,3 @@ static void opj_t1_encode_cblk(opj_t1_t *t1,
pass->len = pass->rate - (passno == 0 ? 0 : cblk->passes[passno - 1].rate);
}
}
#if 0
static void opj_t1_dec_refpass_step(opj_t1_t *t1,
opj_flag_t *flagsp,
OPJ_INT32 *datap,
OPJ_INT32 poshalf,
OPJ_INT32 neghalf,
OPJ_BYTE type,
OPJ_UINT32 vsc)
{
OPJ_INT32 t;
OPJ_UINT32 v, flag;
opj_mqc_t *mqc = t1->mqc; /* MQC component */
opj_raw_t *raw = t1->raw; /* RAW component */
flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) :
(*flagsp);
if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) {
opj_mqc_setcurctx(mqc, opj_t1_getctxno_mag(flag)); /* ESSAI */
if (type == T1_TYPE_RAW) {
v = opj_raw_decode(raw);
} else {
v = opj_mqc_decode(mqc);
}
t = v ? poshalf : neghalf;
*datap += *datap < 0 ? -t : t;
*flagsp |= T1_REFINE;
}
} /* VSC and BYPASS by Antonin */
#endif
#if 0
static void opj_t1_dec_sigpass_step(opj_t1_t *t1,
opj_flag_t *flagsp,
OPJ_INT32 *datap,
OPJ_UINT32 orient,
OPJ_INT32 oneplushalf,
OPJ_BYTE type,
OPJ_UINT32 vsc)
{
OPJ_UINT32 v, flag;
opj_raw_t *raw = t1->raw; /* RAW component */
opj_mqc_t *mqc = t1->mqc; /* MQC component */
flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) :
(*flagsp);
if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) {
if (type == T1_TYPE_RAW) {
if (opj_raw_decode(raw)) {
v = opj_raw_decode(raw); /* ESSAI */
*datap = v ? -oneplushalf : oneplushalf;
opj_t1_updateflags(flagsp, v, t1->flags_stride);
}
} else {
opj_mqc_setcurctx(mqc, opj_t1_getctxno_zc(flag, orient));
if (opj_mqc_decode(mqc)) {
opj_mqc_setcurctx(mqc, opj_t1_getctxno_sc(flag));
v = opj_mqc_decode(mqc) ^ opj_t1_getspb(flag);
*datap = v ? -oneplushalf : oneplushalf;
opj_t1_updateflags(flagsp, v, t1->flags_stride);
}
}
*flagsp |= T1_VISIT;
}
} /* VSC and BYPASS by Antonin */
#endif

4
src/lib/openjp2/t1.h
View File

@ -72,9 +72,11 @@ in T1.C are used by some function in TCD.C.
#define T1_SGN_W 0x0800U
#define T1_SGN (T1_SGN_N|T1_SGN_E|T1_SGN_S|T1_SGN_W)
#ifdef CONSISTENCY_CHECK
#define T1_SIG 0x1000U /**< No longer used by decoder */
#define T1_REFINE 0x2000U /**< No longer used by decoder */
#define T1_VISIT 0x4000U /**< No longer used by decoder */
#endif
/* END of flags that apply to opj_flag_t */
#define T1_NUMCTXS_ZC 9