Change 'restrict' define to 'OPJ_RESTRICT' (#816)
[openjpeg.git] / src / lib / openjp2 / t1.c
index 0fc175128ad6bf84bd8078a0005c6e555fd02529..cb5a1cefd30d460f4d307bea686d39e64a0ea105 100644 (file)
@@ -1,9 +1,15 @@
 /*
- * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
- * Copyright (c) 2002-2007, Professor Benoit Macq
+ * The copyright in this software is being made available under the 2-clauses 
+ * BSD License, included below. This software may be subject to other third 
+ * party and contributor rights, including patent rights, and no such rights
+ * are granted under this license.
+ *
+ * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
+ * Copyright (c) 2002-2014, Professor Benoit Macq
  * Copyright (c) 2001-2003, David Janssens
  * Copyright (c) 2002-2003, Yannick Verschueren
- * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
+ * Copyright (c) 2003-2007, Francois-Olivier Devaux 
+ * Copyright (c) 2003-2014, Antonin Descampe
  * Copyright (c) 2005, Herve Drolon, FreeImage Team
  * Copyright (c) 2007, Callum Lerwick <seg@haxxed.com>
  * All rights reserved.
@@ -62,6 +68,7 @@ static void opj_t1_enc_sigpass_step(opj_t1_t *t1,
 /**
 Decode significant pass
 */
+#if 0
 static void opj_t1_dec_sigpass_step(opj_t1_t *t1,
                                     opj_flag_t *flagsp,
                                     OPJ_INT32 *datap,
@@ -69,27 +76,28 @@ static void opj_t1_dec_sigpass_step(opj_t1_t *t1,
                                     OPJ_INT32 oneplushalf,
                                     OPJ_BYTE type,
                                     OPJ_UINT32 vsc);
+#endif
 
 static INLINE void opj_t1_dec_sigpass_step_raw(
                 opj_t1_t *t1,
                 opj_flag_t *flagsp,
-                int *datap,
-                int orient,
-                int oneplushalf,
-                int vsc);
+                OPJ_INT32 *datap,
+                OPJ_INT32 orient,
+                OPJ_INT32 oneplushalf,
+                OPJ_INT32 vsc);
 static INLINE void opj_t1_dec_sigpass_step_mqc(
                 opj_t1_t *t1,
                 opj_flag_t *flagsp,
-                int *datap,
-                int orient,
-                int oneplushalf);
+                OPJ_INT32 *datap,
+                OPJ_INT32 orient,
+                OPJ_INT32 oneplushalf);
 static INLINE void opj_t1_dec_sigpass_step_mqc_vsc(
                 opj_t1_t *t1,
                 opj_flag_t *flagsp,
-                int *datap,
-                int orient,
-                int oneplushalf,
-                int vsc);
+                OPJ_INT32 *datap,
+                OPJ_INT32 orient,
+                OPJ_INT32 oneplushalf,
+                OPJ_INT32 vsc);
 
 
 /**
@@ -105,25 +113,19 @@ static void opj_t1_enc_sigpass( opj_t1_t *t1,
 /**
 Decode significant pass
 */
-static void opj_t1_dec_sigpass( opj_t1_t *t1,
-                                OPJ_INT32 bpno,
-                                OPJ_UINT32 orient,
-                                OPJ_BYTE type,
-                                OPJ_UINT32 cblksty);
-
 static void opj_t1_dec_sigpass_raw(
                 opj_t1_t *t1,
-                int bpno,
-                int orient,
-                int cblksty);
+                OPJ_INT32 bpno,
+                OPJ_INT32 orient,
+                OPJ_INT32 cblksty);
 static void opj_t1_dec_sigpass_mqc(
                 opj_t1_t *t1,
-                int bpno,
-                int orient);
+                OPJ_INT32 bpno,
+                OPJ_INT32 orient);
 static void opj_t1_dec_sigpass_mqc_vsc(
                 opj_t1_t *t1,
-                int bpno,
-                int orient);
+                OPJ_INT32 bpno,
+                OPJ_INT32 orient);
 
 
 
@@ -152,25 +154,22 @@ static void opj_t1_enc_refpass( opj_t1_t *t1,
 /**
 Decode refinement pass
 */
-static void opj_t1_dec_refpass( opj_t1_t *t1,
-                                OPJ_INT32 bpno,
-                                OPJ_BYTE type,
-                                OPJ_UINT32 cblksty);
 static void opj_t1_dec_refpass_raw(
                 opj_t1_t *t1,
-                int bpno,
-                int cblksty);
+                OPJ_INT32 bpno,
+                OPJ_INT32 cblksty);
 static void opj_t1_dec_refpass_mqc(
                 opj_t1_t *t1,
-                int bpno);
+                OPJ_INT32 bpno);
 static void opj_t1_dec_refpass_mqc_vsc(
                 opj_t1_t *t1,
-                int bpno);
+                OPJ_INT32 bpno);
 
 
 /**
 Decode refinement pass
 */
+#if 0
 static void opj_t1_dec_refpass_step(opj_t1_t *t1,
                                     opj_flag_t *flagsp,
                                     OPJ_INT32 *datap,
@@ -178,27 +177,28 @@ static void opj_t1_dec_refpass_step(opj_t1_t *t1,
                                     OPJ_INT32 neghalf,
                                     OPJ_BYTE type,
                                     OPJ_UINT32 vsc);
+#endif
 
-static void INLINE opj_t1_dec_refpass_step_raw(
+static INLINE void  opj_t1_dec_refpass_step_raw(
                 opj_t1_t *t1,
                 opj_flag_t *flagsp,
-                int *datap,
-                int poshalf,
-                int neghalf,
-                int vsc);
-static void INLINE opj_t1_dec_refpass_step_mqc(
+                OPJ_INT32 *datap,
+                OPJ_INT32 poshalf,
+                OPJ_INT32 neghalf,
+                OPJ_INT32 vsc);
+static INLINE void opj_t1_dec_refpass_step_mqc(
                 opj_t1_t *t1,
                 opj_flag_t *flagsp,
-                int *datap,
-                int poshalf,
-                int neghalf);
-static void INLINE opj_t1_dec_refpass_step_mqc_vsc(
+                OPJ_INT32 *datap,
+                OPJ_INT32 poshalf,
+                OPJ_INT32 neghalf);
+static INLINE void opj_t1_dec_refpass_step_mqc_vsc(
                 opj_t1_t *t1,
                 opj_flag_t *flagsp,
-                int *datap,
-                int poshalf,
-                int neghalf,
-                int vsc);
+                OPJ_INT32 *datap,
+                OPJ_INT32 poshalf,
+                OPJ_INT32 neghalf,
+                OPJ_INT32 vsc);
 
 
 
@@ -221,23 +221,23 @@ Decode clean-up pass
 static void opj_t1_dec_clnpass_step_partial(
                opj_t1_t *t1,
                opj_flag_t *flagsp,
-               int *datap,
-               int orient,
-               int oneplushalf);
+               OPJ_INT32 *datap,
+               OPJ_INT32 orient,
+               OPJ_INT32 oneplushalf);
 static void opj_t1_dec_clnpass_step(
                opj_t1_t *t1,
                opj_flag_t *flagsp,
-               int *datap,
-               int orient,
-               int oneplushalf);
+               OPJ_INT32 *datap,
+               OPJ_INT32 orient,
+               OPJ_INT32 oneplushalf);
 static void opj_t1_dec_clnpass_step_vsc(
                opj_t1_t *t1,
                opj_flag_t *flagsp,
-               int *datap,
-               int orient,
-               int oneplushalf,
-               int partial,
-               int vsc);
+               OPJ_INT32 *datap,
+               OPJ_INT32 orient,
+               OPJ_INT32 oneplushalf,
+               OPJ_INT32 partial,
+               OPJ_INT32 vsc);
 /**
 Encode clean-up pass
 */
@@ -252,9 +252,9 @@ Decode clean-up pass
 */
 static void opj_t1_dec_clnpass(
                opj_t1_t *t1,
-               int bpno,
-               int orient,
-               int cblksty);
+               OPJ_INT32 bpno,
+               OPJ_INT32 orient,
+               OPJ_INT32 cblksty);
 
 static OPJ_FLOAT64 opj_t1_getwmsedec(
                OPJ_INT32 nmsedec,
@@ -265,7 +265,8 @@ static OPJ_FLOAT64 opj_t1_getwmsedec(
                OPJ_UINT32 qmfbid,
                OPJ_FLOAT64 stepsize,
                OPJ_UINT32 numcomps,
-               const OPJ_FLOAT64 * mct_norms);
+               const OPJ_FLOAT64 * mct_norms,
+               OPJ_UINT32 mct_numcomps);
 
 static void opj_t1_encode_cblk( opj_t1_t *t1,
                                 opj_tcd_cblk_enc_t* cblk,
@@ -277,7 +278,8 @@ static void opj_t1_encode_cblk( opj_t1_t *t1,
                                 OPJ_UINT32 cblksty,
                                 OPJ_UINT32 numcomps,
                                 opj_tcd_tile_t * tile,
-                                const OPJ_FLOAT64 * mct_norms);
+                                const OPJ_FLOAT64 * mct_norms,
+                                OPJ_UINT32 mct_numcomps);
 
 /**
 Decode 1 code-block
@@ -287,13 +289,13 @@ Decode 1 code-block
 @param roishift Region of interest shifting value
 @param cblksty Code-block style
 */
-static opj_bool opj_t1_decode_cblk( opj_t1_t *t1,
+static OPJ_BOOL opj_t1_decode_cblk( opj_t1_t *t1,
                                     opj_tcd_cblk_dec_t* cblk,
                                     OPJ_UINT32 orient,
                                     OPJ_UINT32 roishift,
                                     OPJ_UINT32 cblksty);
 
-opj_bool opj_t1_allocate_buffers(   opj_t1_t *t1,
+static OPJ_BOOL opj_t1_allocate_buffers(   opj_t1_t *t1,
                                     OPJ_UINT32 w,
                                     OPJ_UINT32 h);
 
@@ -303,41 +305,41 @@ opj_bool opj_t1_allocate_buffers(   opj_t1_t *t1,
 
 /* ----------------------------------------------------------------------- */
 
-OPJ_BYTE opj_t1_getctxno_zc(OPJ_UINT32 f, OPJ_UINT32 orient) {
+static OPJ_BYTE opj_t1_getctxno_zc(OPJ_UINT32 f, OPJ_UINT32 orient) {
        return lut_ctxno_zc[(orient << 8) | (f & T1_SIG_OTH)];
 }
 
-OPJ_BYTE opj_t1_getctxno_sc(OPJ_UINT32 f) {
+static OPJ_BYTE opj_t1_getctxno_sc(OPJ_UINT32 f) {
        return lut_ctxno_sc[(f & (T1_SIG_PRIM | T1_SGN)) >> 4];
 }
 
-OPJ_UINT32 opj_t1_getctxno_mag(OPJ_UINT32 f) {
+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);
 }
 
-OPJ_BYTE opj_t1_getspb(OPJ_UINT32 f) {
+static OPJ_BYTE opj_t1_getspb(OPJ_UINT32 f) {
        return lut_spb[(f & (T1_SIG_PRIM | T1_SGN)) >> 4];
 }
 
-OPJ_INT16 opj_t1_getnmsedec_sig(OPJ_UINT32 x, OPJ_UINT32 bitpos) {
-       if (bitpos > T1_NMSEDEC_FRACBITS) {
-               return lut_nmsedec_sig[(x >> (bitpos - T1_NMSEDEC_FRACBITS)) & ((1 << T1_NMSEDEC_BITS) - 1)];
+static OPJ_INT16 opj_t1_getnmsedec_sig(OPJ_UINT32 x, OPJ_UINT32 bitpos) {
+       if (bitpos > 0) {
+               return lut_nmsedec_sig[(x >> (bitpos)) & ((1 << T1_NMSEDEC_BITS) - 1)];
        }
        
        return lut_nmsedec_sig0[x & ((1 << T1_NMSEDEC_BITS) - 1)];
 }
 
-OPJ_INT16 opj_t1_getnmsedec_ref(OPJ_UINT32 x, OPJ_UINT32 bitpos) {
-       if (bitpos > T1_NMSEDEC_FRACBITS) {
-               return lut_nmsedec_ref[(x >> (bitpos - T1_NMSEDEC_FRACBITS)) & ((1 << T1_NMSEDEC_BITS) - 1)];
+static OPJ_INT16 opj_t1_getnmsedec_ref(OPJ_UINT32 x, OPJ_UINT32 bitpos) {
+       if (bitpos > 0) {
+               return lut_nmsedec_ref[(x >> (bitpos)) & ((1 << T1_NMSEDEC_BITS) - 1)];
        }
 
     return lut_nmsedec_ref0[x & ((1 << T1_NMSEDEC_BITS) - 1)];
 }
 
-void opj_t1_updateflags(opj_flag_t *flagsp, OPJ_UINT32 s, OPJ_UINT32 stride) {
+static void opj_t1_updateflags(opj_flag_t *flagsp, OPJ_UINT32 s, OPJ_UINT32 stride) {
        opj_flag_t *np = flagsp - stride;
        opj_flag_t *sp = flagsp + stride;
 
@@ -361,7 +363,7 @@ void opj_t1_updateflags(opj_flag_t *flagsp, OPJ_UINT32 s, OPJ_UINT32 stride) {
        sp[1]  |= T1_SIG_NW;
 }
 
-void opj_t1_enc_sigpass_step(   opj_t1_t *t1,
+static void opj_t1_enc_sigpass_step(   opj_t1_t *t1,
                                 opj_flag_t *flagsp,
                                 OPJ_INT32 *datap,
                                 OPJ_UINT32 orient,
@@ -377,25 +379,25 @@ void opj_t1_enc_sigpass_step(   opj_t1_t *t1,
        
        opj_mqc_t *mqc = t1->mqc;       /* MQC component */
        
-       flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp);
+       flag = vsc ? (OPJ_UINT32)((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (OPJ_UINT32)(*flagsp);
        if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) {
-               v = opj_int_abs(*datap) & one ? 1 : 0;
+               v = (opj_int_abs(*datap) & one) ? 1 : 0;
                opj_mqc_setcurctx(mqc, opj_t1_getctxno_zc(flag, orient));       /* ESSAI */
                if (type == T1_TYPE_RAW) {      /* BYPASS/LAZY MODE */
-                       opj_mqc_bypass_enc(mqc, v);
+                       opj_mqc_bypass_enc(mqc, (OPJ_UINT32)v);
                } else {
-                       opj_mqc_encode(mqc, v);
+                       opj_mqc_encode(mqc, (OPJ_UINT32)v);
                }
                if (v) {
                        v = *datap < 0 ? 1 : 0;
-                       *nmsedec +=     opj_t1_getnmsedec_sig(opj_int_abs(*datap), bpno + T1_NMSEDEC_FRACBITS);
+                       *nmsedec +=     opj_t1_getnmsedec_sig((OPJ_UINT32)opj_int_abs(*datap), (OPJ_UINT32)(bpno));
                        opj_mqc_setcurctx(mqc, opj_t1_getctxno_sc(flag));       /* ESSAI */
                        if (type == T1_TYPE_RAW) {      /* BYPASS/LAZY MODE */
-                               opj_mqc_bypass_enc(mqc, v);
+                               opj_mqc_bypass_enc(mqc, (OPJ_UINT32)v);
                        } else {
-                               opj_mqc_encode(mqc, v ^ opj_t1_getspb(flag));
+                               opj_mqc_encode(mqc, (OPJ_UINT32)(v ^ opj_t1_getspb((OPJ_UINT32)flag)));
                        }
-                       opj_t1_updateflags(flagsp, v, t1->flags_stride);
+                       opj_t1_updateflags(flagsp, (OPJ_UINT32)v, t1->flags_stride);
                }
                *flagsp |= T1_VISIT;
        }
@@ -405,70 +407,70 @@ void opj_t1_enc_sigpass_step(   opj_t1_t *t1,
 static INLINE void opj_t1_dec_sigpass_step_raw(
                 opj_t1_t *t1,
                 opj_flag_t *flagsp,
-                int *datap,
-                int orient,
-                int oneplushalf,
-                int vsc)
+                OPJ_INT32 *datap,
+                OPJ_INT32 orient,
+                OPJ_INT32 oneplushalf,
+                OPJ_INT32 vsc)
 {
-        int v, flag;
-       
+        OPJ_INT32 v, flag;
         opj_raw_t *raw = t1->raw;       /* RAW component */
+        OPJ_ARG_NOT_USED(orient);
        
         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 (opj_raw_decode(raw)) {
-                                v = opj_raw_decode(raw);    /* ESSAI */
+                                v = (OPJ_INT32)opj_raw_decode(raw);    /* ESSAI */
                                 *datap = v ? -oneplushalf : oneplushalf;
-                                opj_t1_updateflags(flagsp, v, t1->flags_stride);
+                                opj_t1_updateflags(flagsp, (OPJ_UINT32)v, t1->flags_stride);
                         }
                 *flagsp |= T1_VISIT;
         }
 }      
 
-INLINE void opj_t1_dec_sigpass_step_mqc(
+static INLINE void opj_t1_dec_sigpass_step_mqc(
                 opj_t1_t *t1,
                 opj_flag_t *flagsp,
-                int *datap,
-                int orient,
-                int oneplushalf)
+                OPJ_INT32 *datap,
+                OPJ_INT32 orient,
+                OPJ_INT32 oneplushalf)
 {
-        int v, flag;
+        OPJ_INT32 v, flag;
        
         opj_mqc_t *mqc = t1->mqc;       /* MQC component */
        
         flag = *flagsp;
         if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) {
-                        opj_mqc_setcurctx(mqc, opj_t1_getctxno_zc(flag, orient));
+                        opj_mqc_setcurctx(mqc, opj_t1_getctxno_zc((OPJ_UINT32)flag, (OPJ_UINT32)orient));
                         if (opj_mqc_decode(mqc)) {
-                                opj_mqc_setcurctx(mqc, opj_t1_getctxno_sc(flag));
-                                v = opj_mqc_decode(mqc) ^ opj_t1_getspb(flag);
+                                opj_mqc_setcurctx(mqc, opj_t1_getctxno_sc((OPJ_UINT32)flag));
+                                v = opj_mqc_decode(mqc) ^ opj_t1_getspb((OPJ_UINT32)flag);
                                 *datap = v ? -oneplushalf : oneplushalf;
-                                opj_t1_updateflags(flagsp, v, t1->flags_stride);
+                                opj_t1_updateflags(flagsp, (OPJ_UINT32)v, t1->flags_stride);
                         }
                 *flagsp |= T1_VISIT;
         }
 }                               /* VSC and  BYPASS by Antonin */
 
-INLINE void opj_t1_dec_sigpass_step_mqc_vsc(
+static INLINE void opj_t1_dec_sigpass_step_mqc_vsc(
                 opj_t1_t *t1,
                 opj_flag_t *flagsp,
-                int *datap,
-                int orient,
-                int oneplushalf,
-                int vsc)
+                OPJ_INT32 *datap,
+                OPJ_INT32 orient,
+                OPJ_INT32 oneplushalf,
+                OPJ_INT32 vsc)
 {
-        int v, flag;
+        OPJ_INT32 v, flag;
        
         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))) {
-                opj_mqc_setcurctx(mqc, opj_t1_getctxno_zc(flag, orient));
+                opj_mqc_setcurctx(mqc, opj_t1_getctxno_zc((OPJ_UINT32)flag, (OPJ_UINT32)orient));
                 if (opj_mqc_decode(mqc)) {
-                        opj_mqc_setcurctx(mqc, opj_t1_getctxno_sc(flag));
-                        v = opj_mqc_decode(mqc) ^ opj_t1_getspb(flag);
+                        opj_mqc_setcurctx(mqc, opj_t1_getctxno_sc((OPJ_UINT32)flag));
+                        v = opj_mqc_decode(mqc) ^ opj_t1_getspb((OPJ_UINT32)flag);
                         *datap = v ? -oneplushalf : oneplushalf;
-                        opj_t1_updateflags(flagsp, v, t1->flags_stride);
+                        opj_t1_updateflags(flagsp, (OPJ_UINT32)v, t1->flags_stride);
                 }
                 *flagsp |= T1_VISIT;
         }
@@ -476,7 +478,7 @@ INLINE void opj_t1_dec_sigpass_step_mqc_vsc(
 
 
 
-void opj_t1_enc_sigpass(opj_t1_t *t1,
+static void opj_t1_enc_sigpass(opj_t1_t *t1,
                         OPJ_INT32 bpno,
                         OPJ_UINT32 orient,
                         OPJ_INT32 *nmsedec,
@@ -496,7 +498,7 @@ void opj_t1_enc_sigpass(opj_t1_t *t1,
                                opj_t1_enc_sigpass_step(
                                                t1,
                                                &t1->flags[((j+1) * t1->flags_stride) + i + 1],
-                                               &t1->data[(j * t1->w) + i],
+                                               &t1->data[(j * t1->data_stride) + i],
                                                orient,
                                                bpno,
                                                one,
@@ -508,13 +510,13 @@ void opj_t1_enc_sigpass(opj_t1_t *t1,
        }
 }
 
-void opj_t1_dec_sigpass_raw(
+static void opj_t1_dec_sigpass_raw(
                 opj_t1_t *t1,
-                int bpno,
-                int orient,
-                int cblksty)
+                OPJ_INT32 bpno,
+                OPJ_INT32 orient,
+                OPJ_INT32 cblksty)
 {
-        int one, half, oneplushalf, vsc;
+        OPJ_INT32 one, half, oneplushalf, vsc;
         OPJ_UINT32 i, j, k; 
         one = 1 << bpno;
         half = one >> 1;
@@ -535,21 +537,21 @@ void opj_t1_dec_sigpass_raw(
         }
 }                               /* VSC and  BYPASS by Antonin */
 
-void opj_t1_dec_sigpass_mqc(
+static void opj_t1_dec_sigpass_mqc(
                 opj_t1_t *t1,
-                int bpno,
-                int orient)
+                OPJ_INT32 bpno,
+                OPJ_INT32 orient)
 {
-        int one, half, oneplushalf;
+        OPJ_INT32 one, half, oneplushalf;
         OPJ_UINT32 i, j, k;
-        int *data1 = t1->data;
+        OPJ_INT32 *data1 = t1->data;
         opj_flag_t *flags1 = &t1->flags[1];
         one = 1 << bpno;
         half = one >> 1;
         oneplushalf = one | half;
-        for (k = 0; k < (t1->h & ~3); k += 4) {
+        for (k = 0; k < (t1->h & ~3u); k += 4) {
                 for (i = 0; i < t1->w; ++i) {
-                        int *data2 = data1 + i;
+                        OPJ_INT32 *data2 = data1 + i;
                         opj_flag_t *flags2 = flags1 + i;
                         flags2 += t1->flags_stride;
                         opj_t1_dec_sigpass_step_mqc(t1, flags2, data2, orient, oneplushalf);
@@ -568,7 +570,7 @@ void opj_t1_dec_sigpass_mqc(
                 flags1 += t1->flags_stride << 2;
         }
         for (i = 0; i < t1->w; ++i) {
-                int *data2 = data1 + i;
+                OPJ_INT32 *data2 = data1 + i;
                 opj_flag_t *flags2 = flags1 + i;
                 for (j = k; j < t1->h; ++j) {
                         flags2 += t1->flags_stride;
@@ -578,12 +580,12 @@ void opj_t1_dec_sigpass_mqc(
         }
 }                               /* VSC and  BYPASS by Antonin */
 
-void opj_t1_dec_sigpass_mqc_vsc(
+static void opj_t1_dec_sigpass_mqc_vsc(
                 opj_t1_t *t1,
-                int bpno,
-                int orient)
+                OPJ_INT32 bpno,
+                OPJ_INT32 orient)
 {
-        int one, half, oneplushalf, vsc;
+        OPJ_INT32 one, half, oneplushalf, vsc;
         OPJ_UINT32 i, j, k;
         one = 1 << bpno;
         half = one >> 1;
@@ -606,7 +608,7 @@ void opj_t1_dec_sigpass_mqc_vsc(
 
 
 
-void opj_t1_enc_refpass_step(   opj_t1_t *t1,
+static void opj_t1_enc_refpass_step(   opj_t1_t *t1,
                                 opj_flag_t *flagsp,
                                 OPJ_INT32 *datap,
                                 OPJ_INT32 bpno,
@@ -620,55 +622,55 @@ void opj_t1_enc_refpass_step(   opj_t1_t *t1,
        
        opj_mqc_t *mqc = t1->mqc;       /* MQC component */
        
-       flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp);
+       flag = vsc ? (OPJ_UINT32)((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (OPJ_UINT32)(*flagsp);
        if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) {
-               *nmsedec += opj_t1_getnmsedec_ref(opj_int_abs(*datap), bpno + T1_NMSEDEC_FRACBITS);
-               v = opj_int_abs(*datap) & one ? 1 : 0;
+               *nmsedec += opj_t1_getnmsedec_ref((OPJ_UINT32)opj_int_abs(*datap), (OPJ_UINT32)(bpno));
+               v = (opj_int_abs(*datap) & one) ? 1 : 0;
                opj_mqc_setcurctx(mqc, opj_t1_getctxno_mag(flag));      /* ESSAI */
                if (type == T1_TYPE_RAW) {      /* BYPASS/LAZY MODE */
-                       opj_mqc_bypass_enc(mqc, v);
+                       opj_mqc_bypass_enc(mqc, (OPJ_UINT32)v);
                } else {
-                       opj_mqc_encode(mqc, v);
+                       opj_mqc_encode(mqc, (OPJ_UINT32)v);
                }
                *flagsp |= T1_REFINE;
        }
 }
 
-INLINE void opj_t1_dec_refpass_step_raw(
+static INLINE void opj_t1_dec_refpass_step_raw(
                 opj_t1_t *t1,
                 opj_flag_t *flagsp,
-                int *datap,
-                int poshalf,
-                int neghalf,
-                int vsc)
+                OPJ_INT32 *datap,
+                OPJ_INT32 poshalf,
+                OPJ_INT32 neghalf,
+                OPJ_INT32 vsc)
 {
-        int v, t, flag;
+        OPJ_INT32 v, t, flag;
        
         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) {
-                        v = opj_raw_decode(raw);
+                        v = (OPJ_INT32)opj_raw_decode(raw);
                 t = v ? poshalf : neghalf;
                 *datap += *datap < 0 ? -t : t;
                 *flagsp |= T1_REFINE;
         }
 }                               /* VSC and  BYPASS by Antonin  */
 
-INLINE void opj_t1_dec_refpass_step_mqc(
+static INLINE void opj_t1_dec_refpass_step_mqc(
                 opj_t1_t *t1,
                 opj_flag_t *flagsp,
-                int *datap,
-                int poshalf,
-                int neghalf)
+                OPJ_INT32 *datap,
+                OPJ_INT32 poshalf,
+                OPJ_INT32 neghalf)
 {
-        int v, t, flag;
+        OPJ_INT32 v, t, flag;
        
         opj_mqc_t *mqc = t1->mqc;       /* MQC component */
        
         flag = *flagsp;
         if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) {
-                opj_mqc_setcurctx(mqc, opj_t1_getctxno_mag(flag));      /* ESSAI */
+                opj_mqc_setcurctx(mqc, opj_t1_getctxno_mag((OPJ_UINT32)flag));      /* ESSAI */
                         v = opj_mqc_decode(mqc);
                 t = v ? poshalf : neghalf;
                 *datap += *datap < 0 ? -t : t;
@@ -676,21 +678,21 @@ INLINE void opj_t1_dec_refpass_step_mqc(
                 }
 }                               /* VSC and  BYPASS by Antonin  */
 
-INLINE void opj_t1_dec_refpass_step_mqc_vsc(
+static INLINE void opj_t1_dec_refpass_step_mqc_vsc(
                 opj_t1_t *t1,
                 opj_flag_t *flagsp,
-                int *datap,
-                int poshalf,
-                int neghalf,
-                int vsc)
+                OPJ_INT32 *datap,
+                OPJ_INT32 poshalf,
+                OPJ_INT32 neghalf,
+                OPJ_INT32 vsc)
 {
-        int v, t, flag;
+        OPJ_INT32 v, t, flag;
        
         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 | T1_VISIT)) == T1_SIG) {
-                opj_mqc_setcurctx(mqc, opj_t1_getctxno_mag(flag));      /* ESSAI */
+                opj_mqc_setcurctx(mqc, opj_t1_getctxno_mag((OPJ_UINT32)flag));      /* ESSAI */
                 v = opj_mqc_decode(mqc);
                 t = v ? poshalf : neghalf;
                 *datap += *datap < 0 ? -t : t;
@@ -699,7 +701,7 @@ INLINE void opj_t1_dec_refpass_step_mqc_vsc(
 }                               /* VSC and  BYPASS by Antonin  */
 
 
-void opj_t1_enc_refpass(
+static void opj_t1_enc_refpass(
                opj_t1_t *t1,
                OPJ_INT32 bpno,
                OPJ_INT32 *nmsedec,
@@ -718,7 +720,7 @@ void opj_t1_enc_refpass(
                                opj_t1_enc_refpass_step(
                                                t1,
                                                &t1->flags[((j+1) * t1->flags_stride) + i + 1],
-                                               &t1->data[(j * t1->w) + i],
+                                               &t1->data[(j * t1->data_stride) + i],
                                                bpno,
                                                one,
                                                nmsedec,
@@ -729,14 +731,14 @@ void opj_t1_enc_refpass(
        }
 }
 
-void opj_t1_dec_refpass_raw(
+static void opj_t1_dec_refpass_raw(
                 opj_t1_t *t1,
-                int bpno,
-                int cblksty)
+                OPJ_INT32 bpno,
+                OPJ_INT32 cblksty)
 {
-        int one, poshalf, neghalf;
+        OPJ_INT32 one, poshalf, neghalf;
         OPJ_UINT32 i, j, k;
-        int vsc;
+        OPJ_INT32 vsc;
         one = 1 << bpno;
         poshalf = one >> 1;
         neghalf = bpno > 0 ? -poshalf : -1;
@@ -756,20 +758,20 @@ void opj_t1_dec_refpass_raw(
         }
 }                               /* VSC and  BYPASS by Antonin */
 
-void opj_t1_dec_refpass_mqc(
+static void opj_t1_dec_refpass_mqc(
                 opj_t1_t *t1,
-                int bpno)
+                OPJ_INT32 bpno)
 {
-        int one, poshalf, neghalf;
+        OPJ_INT32 one, poshalf, neghalf;
         OPJ_UINT32 i, j, k;
-        int *data1 = t1->data;
+        OPJ_INT32 *data1 = t1->data;
         opj_flag_t *flags1 = &t1->flags[1];
         one = 1 << bpno;
         poshalf = one >> 1;
         neghalf = bpno > 0 ? -poshalf : -1;
-        for (k = 0; k < (t1->h & ~3); k += 4) {
+        for (k = 0; k < (t1->h & ~3u); k += 4) {
                 for (i = 0; i < t1->w; ++i) {
-                        int *data2 = data1 + i;
+                        OPJ_INT32 *data2 = data1 + i;
                         opj_flag_t *flags2 = flags1 + i;
                         flags2 += t1->flags_stride;
                         opj_t1_dec_refpass_step_mqc(t1, flags2, data2, poshalf, neghalf);
@@ -788,7 +790,7 @@ void opj_t1_dec_refpass_mqc(
                 flags1 += t1->flags_stride << 2;
         }
         for (i = 0; i < t1->w; ++i) {
-                int *data2 = data1 + i;
+                OPJ_INT32 *data2 = data1 + i;
                 opj_flag_t *flags2 = flags1 + i;
                 for (j = k; j < t1->h; ++j) {
                         flags2 += t1->flags_stride;
@@ -798,13 +800,13 @@ void opj_t1_dec_refpass_mqc(
         }
 }                               /* VSC and  BYPASS by Antonin */
 
-void opj_t1_dec_refpass_mqc_vsc(
+static void opj_t1_dec_refpass_mqc_vsc(
                 opj_t1_t *t1,
-                int bpno)
+                OPJ_INT32 bpno)
 {
-        int one, poshalf, neghalf;
+        OPJ_INT32 one, poshalf, neghalf;
         OPJ_UINT32 i, j, k;
-        int vsc;
+        OPJ_INT32 vsc;
         one = 1 << bpno;
         poshalf = one >> 1;
         neghalf = bpno > 0 ? -poshalf : -1;
@@ -825,7 +827,7 @@ void opj_t1_dec_refpass_mqc_vsc(
 }                               /* VSC and  BYPASS by Antonin */
 
 
-void opj_t1_enc_clnpass_step(
+static void opj_t1_enc_clnpass_step(
                opj_t1_t *t1,
                opj_flag_t *flagsp,
                OPJ_INT32 *datap,
@@ -841,21 +843,21 @@ void opj_t1_enc_clnpass_step(
        
        opj_mqc_t *mqc = t1->mqc;       /* MQC component */
        
-       flag = vsc ? ((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*flagsp);
+       flag = vsc ? (OPJ_UINT32)((*flagsp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (OPJ_UINT32)(*flagsp);
        if (partial) {
                goto LABEL_PARTIAL;
        }
        if (!(*flagsp & (T1_SIG | T1_VISIT))) {
                opj_mqc_setcurctx(mqc, opj_t1_getctxno_zc(flag, orient));
-               v = opj_int_abs(*datap) & one ? 1 : 0;
-               opj_mqc_encode(mqc, v);
+               v = (opj_int_abs(*datap) & one) ? 1 : 0;
+               opj_mqc_encode(mqc, (OPJ_UINT32)v);
                if (v) {
 LABEL_PARTIAL:
-                       *nmsedec += opj_t1_getnmsedec_sig(opj_int_abs(*datap), bpno + T1_NMSEDEC_FRACBITS);
+                       *nmsedec += opj_t1_getnmsedec_sig((OPJ_UINT32)opj_int_abs(*datap), (OPJ_UINT32)(bpno));
                        opj_mqc_setcurctx(mqc, opj_t1_getctxno_sc(flag));
                        v = *datap < 0 ? 1 : 0;
-                       opj_mqc_encode(mqc, v ^ opj_t1_getspb(flag));
-                       opj_t1_updateflags(flagsp, v, t1->flags_stride);
+                       opj_mqc_encode(mqc, (OPJ_UINT32)(v ^ opj_t1_getspb((OPJ_UINT32)flag)));
+                       opj_t1_updateflags(flagsp, (OPJ_UINT32)v, t1->flags_stride);
                }
        }
        *flagsp &= ~T1_VISIT;
@@ -864,42 +866,42 @@ LABEL_PARTIAL:
 static void opj_t1_dec_clnpass_step_partial(
                opj_t1_t *t1,
                opj_flag_t *flagsp,
-               int *datap,
-               int orient,
-               int oneplushalf)
+               OPJ_INT32 *datap,
+               OPJ_INT32 orient,
+               OPJ_INT32 oneplushalf)
 {
-       int v, flag;
+       OPJ_INT32 v, flag;
        opj_mqc_t *mqc = t1->mqc;       /* MQC component */
        
        OPJ_ARG_NOT_USED(orient);
        
        flag = *flagsp;
-       opj_mqc_setcurctx(mqc, opj_t1_getctxno_sc(flag));
-       v = opj_mqc_decode(mqc) ^ opj_t1_getspb(flag);
+       opj_mqc_setcurctx(mqc, opj_t1_getctxno_sc((OPJ_UINT32)flag));
+       v = opj_mqc_decode(mqc) ^ opj_t1_getspb((OPJ_UINT32)flag);
        *datap = v ? -oneplushalf : oneplushalf;
-       opj_t1_updateflags(flagsp, v, t1->flags_stride);
+       opj_t1_updateflags(flagsp, (OPJ_UINT32)v, t1->flags_stride);
        *flagsp &= ~T1_VISIT;
 }                              /* VSC and  BYPASS by Antonin */
 
 static void opj_t1_dec_clnpass_step(
                opj_t1_t *t1,
                opj_flag_t *flagsp,
-               int *datap,
-               int orient,
-               int oneplushalf)
+               OPJ_INT32 *datap,
+               OPJ_INT32 orient,
+               OPJ_INT32 oneplushalf)
 {
-       int v, flag;
+       OPJ_INT32 v, flag;
        
        opj_mqc_t *mqc = t1->mqc;       /* MQC component */
        
        flag = *flagsp;
        if (!(flag & (T1_SIG | T1_VISIT))) {
-               opj_mqc_setcurctx(mqc, opj_t1_getctxno_zc(flag, orient));
+               opj_mqc_setcurctx(mqc, opj_t1_getctxno_zc((OPJ_UINT32)flag, (OPJ_UINT32)orient));
                if (opj_mqc_decode(mqc)) {
-                       opj_mqc_setcurctx(mqc, opj_t1_getctxno_sc(flag));
-                       v = opj_mqc_decode(mqc) ^ opj_t1_getspb(flag);
+                       opj_mqc_setcurctx(mqc, opj_t1_getctxno_sc((OPJ_UINT32)flag));
+                       v = opj_mqc_decode(mqc) ^ opj_t1_getspb((OPJ_UINT32)flag);
                        *datap = v ? -oneplushalf : oneplushalf;
-                       opj_t1_updateflags(flagsp, v, t1->flags_stride);
+                       opj_t1_updateflags(flagsp, (OPJ_UINT32)v, t1->flags_stride);
                }
        }
        *flagsp &= ~T1_VISIT;
@@ -908,13 +910,13 @@ static void opj_t1_dec_clnpass_step(
 static void opj_t1_dec_clnpass_step_vsc(
                opj_t1_t *t1,
                opj_flag_t *flagsp,
-               int *datap,
-               int orient,
-               int oneplushalf,
-               int partial,
-               int vsc)
+               OPJ_INT32 *datap,
+               OPJ_INT32 orient,
+               OPJ_INT32 oneplushalf,
+               OPJ_INT32 partial,
+               OPJ_INT32 vsc)
 {
-       int v, flag;
+       OPJ_INT32 v, flag;
        
        opj_mqc_t *mqc = t1->mqc;       /* MQC component */
        
@@ -923,19 +925,19 @@ static void opj_t1_dec_clnpass_step_vsc(
                goto LABEL_PARTIAL;
        }
        if (!(flag & (T1_SIG | T1_VISIT))) {
-               opj_mqc_setcurctx(mqc, opj_t1_getctxno_zc(flag, orient));
+               opj_mqc_setcurctx(mqc, opj_t1_getctxno_zc((OPJ_UINT32)flag, (OPJ_UINT32)orient));
                if (opj_mqc_decode(mqc)) {
 LABEL_PARTIAL:
-                       opj_mqc_setcurctx(mqc, opj_t1_getctxno_sc(flag));
-                       v = opj_mqc_decode(mqc) ^ opj_t1_getspb(flag);
+                       opj_mqc_setcurctx(mqc, opj_t1_getctxno_sc((OPJ_UINT32)flag));
+                       v = opj_mqc_decode(mqc) ^ opj_t1_getspb((OPJ_UINT32)flag);
                        *datap = v ? -oneplushalf : oneplushalf;
-                       opj_t1_updateflags(flagsp, v, t1->flags_stride);
+                       opj_t1_updateflags(flagsp, (OPJ_UINT32)v, t1->flags_stride);
                }
        }
        *flagsp &= ~T1_VISIT;
 }
 
-void opj_t1_enc_clnpass(
+static void opj_t1_enc_clnpass(
                opj_t1_t *t1,
                OPJ_INT32 bpno,
                OPJ_UINT32 orient,
@@ -960,17 +962,17 @@ void opj_t1_enc_clnpass(
                                                || (MACRO_t1_flags(1 + k + 3,1 + i) 
                                                & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) & (T1_SIG | T1_VISIT | T1_SIG_OTH));
                                } else {
-                                       agg = !(MACRO_t1_flags(1 + k,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
-                                               || MACRO_t1_flags(1 + k + 1,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
-                                               || MACRO_t1_flags(1 + k + 2,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
-                                               || MACRO_t1_flags(1 + k + 3,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH));
+                                       agg = !((MACRO_t1_flags(1 + k,1 + i) | 
+                                                   MACRO_t1_flags(1 + k + 1,1 + i) |
+                                                   MACRO_t1_flags(1 + k + 2,1 + i) | 
+                                                    MACRO_t1_flags(1 + k + 3,1 + i)) & (T1_SIG | T1_VISIT | T1_SIG_OTH));
                                }
                        } else {
                                agg = 0;
                        }
                        if (agg) {
                                for (runlen = 0; runlen < 4; ++runlen) {
-                                       if (opj_int_abs(t1->data[((k + runlen)*t1->w) + i]) & one)
+                                       if (opj_int_abs(t1->data[((k + runlen)*t1->data_stride) + i]) & one)
                                                break;
                                }
                                opj_mqc_setcurctx(mqc, T1_CTXNO_AGG);
@@ -989,7 +991,7 @@ void opj_t1_enc_clnpass(
                                opj_t1_enc_clnpass_step(
                                                t1,
                                                &t1->flags[((j+1) * t1->flags_stride) + i + 1],
-                                               &t1->data[(j * t1->w) + i],
+                                               &t1->data[(j * t1->data_stride) + i],
                                                orient,
                                                bpno,
                                                one,
@@ -1003,13 +1005,13 @@ void opj_t1_enc_clnpass(
 
 static void opj_t1_dec_clnpass(
                opj_t1_t *t1,
-               int bpno,
-               int orient,
-               int cblksty)
+               OPJ_INT32 bpno,
+               OPJ_INT32 orient,
+               OPJ_INT32 cblksty)
 {
-       int one, half, oneplushalf, agg, runlen, vsc;
+       OPJ_INT32 one, half, oneplushalf, agg, runlen, vsc;
     OPJ_UINT32 i, j, k;
-       int segsym = cblksty & J2K_CCP_CBLKSTY_SEGSYM;
+       OPJ_INT32 segsym = cblksty & J2K_CCP_CBLKSTY_SEGSYM;
        
        opj_mqc_t *mqc = t1->mqc;       /* MQC component */
        
@@ -1039,7 +1041,7 @@ static void opj_t1_dec_clnpass(
                        } else {
                                runlen = 0;
                        }
-                       for (j = k + runlen; j < k + 4 && j < t1->h; ++j) {
+                       for (j = k + (OPJ_UINT32)runlen; j < k + 4 && j < t1->h; ++j) {
                                        vsc = (j == k + 3 || j == t1->h - 1) ? 1 : 0;
                                        opj_t1_dec_clnpass_step_vsc(
                                                t1,
@@ -1047,22 +1049,22 @@ static void opj_t1_dec_clnpass(
                                                &t1->data[(j * t1->w) + i],
                                                orient,
                                                oneplushalf,
-                                               agg && (j == k + runlen),
+                                               agg && (j == k + (OPJ_UINT32)runlen),
                                                vsc);
                        }
                }
        }
        } else {
-               int *data1 = t1->data;
+               OPJ_INT32 *data1 = t1->data;
                opj_flag_t *flags1 = &t1->flags[1];
-               for (k = 0; k < (t1->h & ~3); k += 4) {
+               for (k = 0; k < (t1->h & ~3u); k += 4) {
                        for (i = 0; i < t1->w; ++i) {
-                               int *data2 = data1 + i;
+                               OPJ_INT32 *data2 = data1 + i;
                                opj_flag_t *flags2 = flags1 + i;
-                               agg = !(MACRO_t1_flags(1 + k,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
-                                       || MACRO_t1_flags(1 + k + 1,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
-                                       || MACRO_t1_flags(1 + k + 2,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH)
-                                       || MACRO_t1_flags(1 + k + 3,1 + i) & (T1_SIG | T1_VISIT | T1_SIG_OTH));
+                               agg = !((MACRO_t1_flags(1 + k, 1 + i) |
+                                                       MACRO_t1_flags(1 + k + 1, 1 + i) |
+                                                       MACRO_t1_flags(1 + k + 2, 1 + i) |
+                                                       MACRO_t1_flags(1 + k + 3, 1 + i)) & (T1_SIG | T1_VISIT | T1_SIG_OTH));
                                if (agg) {
                                        opj_mqc_setcurctx(mqc, T1_CTXNO_AGG);
                                        if (!opj_mqc_decode(mqc)) {
@@ -1071,11 +1073,11 @@ static void opj_t1_dec_clnpass(
                                        opj_mqc_setcurctx(mqc, T1_CTXNO_UNI);
                                        runlen = opj_mqc_decode(mqc);
                                        runlen = (runlen << 1) | opj_mqc_decode(mqc);
-                                       flags2 += runlen * t1->flags_stride;
-                                       data2 += runlen * t1->w;
-                                       for (j = k + runlen; j < k + 4 && j < t1->h; ++j) {
+                                       flags2 += (OPJ_UINT32)runlen * t1->flags_stride;
+                                       data2 += (OPJ_UINT32)runlen * t1->w;
+                                       for (j = (OPJ_UINT32)runlen; j < 4 && j < t1->h; ++j) {
                                                flags2 += t1->flags_stride;
-                                               if (agg && (j == k + runlen)) {
+                                               if (agg && (j == (OPJ_UINT32)runlen)) {
                                                        opj_t1_dec_clnpass_step_partial(t1, flags2, data2, orient, oneplushalf);
                                                } else {
                                                        opj_t1_dec_clnpass_step(t1, flags2, data2, orient, oneplushalf);
@@ -1101,7 +1103,7 @@ static void opj_t1_dec_clnpass(
                        flags1 += t1->flags_stride << 2;
                }
                for (i = 0; i < t1->w; ++i) {
-                       int *data2 = data1 + i;
+                       OPJ_INT32 *data2 = data1 + i;
                        opj_flag_t *flags2 = flags1 + i;
                        for (j = k; j < t1->h; ++j) {
                                flags2 += t1->flags_stride;
@@ -1112,7 +1114,7 @@ static void opj_t1_dec_clnpass(
        }
 
        if (segsym) {
-               int v = 0;
+               OPJ_INT32 v = 0;
                opj_mqc_setcurctx(mqc, T1_CTXNO_UNI);
                v = opj_mqc_decode(mqc);
                v = (v << 1) | opj_mqc_decode(mqc);
@@ -1137,11 +1139,13 @@ static OPJ_FLOAT64 opj_t1_getwmsedec(
                OPJ_UINT32 qmfbid,
                OPJ_FLOAT64 stepsize,
                OPJ_UINT32 numcomps,
-               const OPJ_FLOAT64 * mct_norms)
+               const OPJ_FLOAT64 * mct_norms,
+               OPJ_UINT32 mct_numcomps)
 {
        OPJ_FLOAT64 w1 = 1, w2, wmsedec;
+       OPJ_ARG_NOT_USED(numcomps);
 
-       if (mct_norms) {
+       if (mct_norms && (compno < mct_numcomps)) {
                w1 = mct_norms[compno];
        }
 
@@ -1157,7 +1161,7 @@ static OPJ_FLOAT64 opj_t1_getwmsedec(
        return wmsedec;
 }
 
-opj_bool opj_t1_allocate_buffers(
+static OPJ_BOOL opj_t1_allocate_buffers(
                opj_t1_t *t1,
                OPJ_UINT32 w,
                OPJ_UINT32 h)
@@ -1165,16 +1169,22 @@ opj_bool opj_t1_allocate_buffers(
        OPJ_UINT32 datasize=w * h;
        OPJ_UINT32 flagssize;
 
-       if(datasize > t1->datasize){
-               opj_aligned_free(t1->data);
-               t1->data = (OPJ_INT32*) opj_aligned_malloc(datasize * sizeof(OPJ_INT32));
-               if(!t1->data){
-                       return OPJ_FALSE;
+       /* encoder uses tile buffer, so no need to allocate */
+       if (!t1->encoder) {
+               if(datasize > t1->datasize){
+                       opj_aligned_free(t1->data);
+                       t1->data = (OPJ_INT32*) opj_aligned_malloc(datasize * sizeof(OPJ_INT32));
+                       if(!t1->data){
+                               /* FIXME event manager error callback */
+                               return OPJ_FALSE;
+                       }
+                       t1->datasize=datasize;
+               }
+               /* memset first arg is declared to never be null by gcc */
+               if (t1->data != NULL) {
+                       memset(t1->data,0,datasize * sizeof(OPJ_INT32));
                }
-               t1->datasize=datasize;
        }
-       memset(t1->data,0,datasize * sizeof(OPJ_INT32));
-
        t1->flags_stride=w+2;
        flagssize=t1->flags_stride * (h+2);
 
@@ -1182,6 +1192,7 @@ opj_bool opj_t1_allocate_buffers(
                opj_aligned_free(t1->flags);
                t1->flags = (opj_flag_t*) opj_aligned_malloc(flagssize * sizeof(opj_flag_t));
                if(!t1->flags){
+                       /* FIXME event manager error callback */
                        return OPJ_FALSE;
                }
                t1->flagssize=flagssize;
@@ -1202,15 +1213,14 @@ opj_bool opj_t1_allocate_buffers(
  * and initializes the look-up tables of the Tier-1 coder/decoder
  * @return a new T1 handle if successful, returns NULL otherwise
 */
-opj_t1_t* opj_t1_create()
+opj_t1_t* opj_t1_create(OPJ_BOOL isEncoder)
 {
        opj_t1_t *l_t1 = 00;
 
-       l_t1 = (opj_t1_t*) opj_malloc(sizeof(opj_t1_t));
+       l_t1 = (opj_t1_t*) opj_calloc(1,sizeof(opj_t1_t));
        if (!l_t1) {
                return 00;
        }
-       memset(l_t1,0,sizeof(opj_t1_t));
 
        /* create MQC and RAW handles */
        l_t1->mqc = opj_mqc_create();
@@ -1224,6 +1234,7 @@ opj_t1_t* opj_t1_create()
                opj_t1_destroy(l_t1);
                return 00;
        }
+       l_t1->encoder = isEncoder;
 
        return l_t1;
 }
@@ -1246,7 +1257,8 @@ void opj_t1_destroy(opj_t1_t *p_t1)
        opj_raw_destroy(p_t1->raw);
        p_t1->raw = 00;
        
-    if (p_t1->data) {
+       /* encoder uses tile buffer, so no need to free */
+       if (!p_t1->encoder && p_t1->data) {
                opj_aligned_free(p_t1->data);
                p_t1->data = 00;
        }
@@ -1259,27 +1271,26 @@ void opj_t1_destroy(opj_t1_t *p_t1)
        opj_free(p_t1);
 }
 
-opj_bool opj_t1_decode_cblks(   opj_t1_t* t1,
+OPJ_BOOL opj_t1_decode_cblks(   opj_t1_t* t1,
                             opj_tcd_tilecomp_t* tilec,
                             opj_tccp_t* tccp
                             )
 {
        OPJ_UINT32 resno, bandno, precno, cblkno;
-       OPJ_UINT32 tile_w = tilec->x1 - tilec->x0;
+       OPJ_UINT32 tile_w = (OPJ_UINT32)(tilec->x1 - tilec->x0);
 
        for (resno = 0; resno < tilec->minimum_num_resolutions; ++resno) {
                opj_tcd_resolution_t* res = &tilec->resolutions[resno];
 
                for (bandno = 0; bandno < res->numbands; ++bandno) {
-                       opj_tcd_band_t* restrict band = &res->bands[bandno];
+                       opj_tcd_band_t* OPJ_RESTRICT band = &res->bands[bandno];
 
                        for (precno = 0; precno < res->pw * res->ph; ++precno) {
                                opj_tcd_precinct_t* precinct = &band->precincts[precno];
 
                                for (cblkno = 0; cblkno < precinct->cw * precinct->ch; ++cblkno) {
                                        opj_tcd_cblk_dec_t* cblk = &precinct->cblks.dec[cblkno];
-                                       OPJ_INT32* restrict datap;
-                                       /*void* restrict tiledp;*/
+                                       OPJ_INT32* OPJ_RESTRICT datap;
                                        OPJ_UINT32 cblk_w, cblk_h;
                                        OPJ_INT32 x, y;
                                        OPJ_UINT32 i, j;
@@ -1288,7 +1299,7 @@ opj_bool opj_t1_decode_cblks(   opj_t1_t* t1,
                                             t1,
                                             cblk,
                                             band->bandno,
-                                            tccp->roishift,
+                                            (OPJ_UINT32)tccp->roishift,
                                             tccp->cblksty)) {
                             return OPJ_FALSE;
                     }
@@ -1321,37 +1332,28 @@ opj_bool opj_t1_decode_cblks(   opj_t1_t* t1,
                                                        }
                                                }
                                        }
-
-                                       /*tiledp=(void*)&tilec->data[(y * tile_w) + x];*/
                                        if (tccp->qmfbid == 1) {
-                        int* restrict tiledp = &tilec->data[(y * tile_w) + x];
+                        OPJ_INT32* OPJ_RESTRICT tiledp = &tilec->data[(OPJ_UINT32)y * tile_w + (OPJ_UINT32)x];
                                                for (j = 0; j < cblk_h; ++j) {
                                                        for (i = 0; i < cblk_w; ++i) {
                                                                OPJ_INT32 tmp = datap[(j * cblk_w) + i];
-                                                               ((OPJ_INT32*)tiledp)[(j * tile_w) + i] = tmp / 2;
+                                                               ((OPJ_INT32*)tiledp)[(j * tile_w) + i] = tmp/2;
                                                        }
                                                }
                                        } else {                /* if (tccp->qmfbid == 0) */
-                        float* restrict tiledp = (float*) &tilec->data[(y * tile_w) + x];
+                        OPJ_FLOAT32* OPJ_RESTRICT tiledp = (OPJ_FLOAT32*) &tilec->data[(OPJ_UINT32)y * tile_w + (OPJ_UINT32)x];
                                                for (j = 0; j < cblk_h; ++j) {
-                            float* restrict tiledp2 = tiledp;
+                            OPJ_FLOAT32* OPJ_RESTRICT tiledp2 = tiledp;
                                                        for (i = 0; i < cblk_w; ++i) {
-                                float tmp = *datap * band->stepsize;
+                                OPJ_FLOAT32 tmp = (OPJ_FLOAT32)*datap * band->stepsize;
                                 *tiledp2 = tmp;
                                 datap++;
                                 tiledp2++;
-                                                               /*float tmp = datap[(j * cblk_w) + i] * band->stepsize;
-                                                               ((float*)tiledp)[(j * tile_w) + i] = tmp;*/
-
                                                        }
                             tiledp += tile_w;
                                                }
                                        }
-                    //opj_free(cblk->data);
-                                       //opj_free(cblk->segs);
-                                       /*cblk->segs = 00;*/
                                } /* cblkno */
-                //opj_free(precinct->cblks.dec);
                        } /* precno */
                } /* bandno */
        } /* resno */
@@ -1359,7 +1361,7 @@ opj_bool opj_t1_decode_cblks(   opj_t1_t* t1,
 }
 
 
-opj_bool opj_t1_decode_cblk(opj_t1_t *t1,
+static OPJ_BOOL opj_t1_decode_cblk(opj_t1_t *t1,
                             opj_tcd_cblk_dec_t* cblk,
                             OPJ_UINT32 orient,
                             OPJ_UINT32 roishift,
@@ -1368,20 +1370,20 @@ opj_bool opj_t1_decode_cblk(opj_t1_t *t1,
        opj_raw_t *raw = t1->raw;       /* RAW component */
        opj_mqc_t *mqc = t1->mqc;       /* MQC component */
 
-       OPJ_INT32 bpno;
+       OPJ_INT32 bpno_plus_one;
        OPJ_UINT32 passtype;
        OPJ_UINT32 segno, passno;
        OPJ_BYTE type = T1_TYPE_MQ; /* BYPASS mode */
 
        if(!opj_t1_allocate_buffers(
                                t1,
-                               cblk->x1 - cblk->x0,
-                               cblk->y1 - cblk->y0))
+                               (OPJ_UINT32)(cblk->x1 - cblk->x0),
+                               (OPJ_UINT32)(cblk->y1 - cblk->y0)))
        {
                return OPJ_FALSE;
        }
 
-       bpno = roishift + cblk->numbps - 1;
+       bpno_plus_one = (OPJ_INT32)(roishift + cblk->numbps);
        passtype = 2;
 
        opj_mqc_resetstates(mqc);
@@ -1393,7 +1395,7 @@ opj_bool opj_t1_decode_cblk(opj_t1_t *t1,
                opj_tcd_seg_t *seg = &cblk->segs[segno];
 
                /* BYPASS mode */
-               type = ((bpno <= ((OPJ_INT32) (cblk->numbps) - 1) - 4) && (passtype < 2) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ;
+               type = ((bpno_plus_one <= ((OPJ_INT32) (cblk->numbps)) - 4) && (passtype < 2) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ;
                /* FIXME: slviewer gets here with a null pointer. Why? Partially downloaded and/or corrupt textures? */
                if(seg->data == 00){
                        continue;
@@ -1406,43 +1408,32 @@ opj_bool opj_t1_decode_cblk(opj_t1_t *t1,
             }
                }
 
-               for (passno = 0; passno < seg->real_num_passes; ++passno) {
-/*                     switch (passtype) {
-                               case 0:
-                                       opj_t1_dec_sigpass(t1, bpno+1, orient, type, cblksty);
-                                       break;
-                               case 1:
-                                       opj_t1_dec_refpass(t1, bpno+1, type, cblksty);
-                                       break;
-                               case 2:
-                                       opj_t1_dec_clnpass(t1, bpno+1, orient, cblksty);
-                                       break;
-                       }*/
+               for (passno = 0; (passno < seg->real_num_passes) && (bpno_plus_one >= 1); ++passno) {
             switch (passtype) {
                 case 0:
                     if (type == T1_TYPE_RAW) {
-                        opj_t1_dec_sigpass_raw(t1, bpno+1, orient, cblksty);
+                        opj_t1_dec_sigpass_raw(t1, bpno_plus_one, (OPJ_INT32)orient, (OPJ_INT32)cblksty);
                     } else {
                         if (cblksty & J2K_CCP_CBLKSTY_VSC) {
-                            opj_t1_dec_sigpass_mqc_vsc(t1, bpno+1, orient);
+                            opj_t1_dec_sigpass_mqc_vsc(t1, bpno_plus_one, (OPJ_INT32)orient);
                         } else {
-                            opj_t1_dec_sigpass_mqc(t1, bpno+1, orient);
+                            opj_t1_dec_sigpass_mqc(t1, bpno_plus_one, (OPJ_INT32)orient);
                         }
                     }
                     break;
                 case 1:
                     if (type == T1_TYPE_RAW) {
-                            opj_t1_dec_refpass_raw(t1, bpno+1, cblksty);
+                            opj_t1_dec_refpass_raw(t1, bpno_plus_one, (OPJ_INT32)cblksty);
                     } else {
                         if (cblksty & J2K_CCP_CBLKSTY_VSC) {
-                            opj_t1_dec_refpass_mqc_vsc(t1, bpno+1);
+                            opj_t1_dec_refpass_mqc_vsc(t1, bpno_plus_one);
                         } else {
-                            opj_t1_dec_refpass_mqc(t1, bpno+1);
+                            opj_t1_dec_refpass_mqc(t1, bpno_plus_one);
                         }
                     }
                     break;
                 case 2:
-                    opj_t1_dec_clnpass(t1, bpno+1, orient, cblksty);
+                    opj_t1_dec_clnpass(t1, bpno_plus_one, (OPJ_INT32)orient, (OPJ_INT32)cblksty);
                     break;
             }
 
@@ -1454,20 +1445,21 @@ opj_bool opj_t1_decode_cblk(opj_t1_t *t1,
                        }
                        if (++passtype == 3) {
                                passtype = 0;
-                               bpno--;
+                               bpno_plus_one--;
                        }
                }
        }
-        return OPJ_TRUE;
+    return OPJ_TRUE;
 }
 
 
 
 
-opj_bool opj_t1_encode_cblks(   opj_t1_t *t1,
+OPJ_BOOL opj_t1_encode_cblks(   opj_t1_t *t1,
                                 opj_tcd_tile_t *tile,
                                 opj_tcp_t *tcp,
-                                const OPJ_FLOAT64 * mct_norms
+                                const OPJ_FLOAT64 * mct_norms,
+                                OPJ_UINT32 mct_numcomps
                                 )
 {
        OPJ_UINT32 compno, resno, bandno, precno, cblkno;
@@ -1477,13 +1469,13 @@ opj_bool opj_t1_encode_cblks(   opj_t1_t *t1,
        for (compno = 0; compno < tile->numcomps; ++compno) {
                opj_tcd_tilecomp_t* tilec = &tile->comps[compno];
                opj_tccp_t* tccp = &tcp->tccps[compno];
-               OPJ_UINT32 tile_w = tilec->x1 - tilec->x0;
+               OPJ_UINT32 tile_w = (OPJ_UINT32)(tilec->x1 - tilec->x0);
 
                for (resno = 0; resno < tilec->numresolutions; ++resno) {
                        opj_tcd_resolution_t *res = &tilec->resolutions[resno];
 
                        for (bandno = 0; bandno < res->numbands; ++bandno) {
-                               opj_tcd_band_t* restrict band = &res->bands[bandno];
+                               opj_tcd_band_t* OPJ_RESTRICT band = &res->bands[bandno];
                 OPJ_INT32 bandconst = 8192 * 8192 / ((OPJ_INT32) floor(band->stepsize * 8192));
 
                                for (precno = 0; precno < res->pw * res->ph; ++precno) {
@@ -1491,11 +1483,10 @@ opj_bool opj_t1_encode_cblks(   opj_t1_t *t1,
 
                                        for (cblkno = 0; cblkno < prc->cw * prc->ch; ++cblkno) {
                                                opj_tcd_cblk_enc_t* cblk = &prc->cblks.enc[cblkno];
-                                               OPJ_INT32 * restrict datap;
-                                               OPJ_INT32* restrict tiledp;
+                                               OPJ_INT32* OPJ_RESTRICT tiledp;
                                                OPJ_UINT32 cblk_w;
                                                OPJ_UINT32 cblk_h;
-                                               OPJ_UINT32 i, j;
+                                               OPJ_UINT32 i, j, tileIndex=0, tileLineAdvance;
 
                                                OPJ_INT32 x = cblk->x0 - band->x0;
                                                OPJ_INT32 y = cblk->y0 - band->y0;
@@ -1510,33 +1501,38 @@ opj_bool opj_t1_encode_cblks(   opj_t1_t *t1,
 
                                                if(!opj_t1_allocate_buffers(
                                                                        t1,
-                                                                       cblk->x1 - cblk->x0,
-                                                                       cblk->y1 - cblk->y0))
+                                                                       (OPJ_UINT32)(cblk->x1 - cblk->x0),
+                                                                       (OPJ_UINT32)(cblk->y1 - cblk->y0)))
                                                {
                                                        return OPJ_FALSE;
                                                }
 
-                                               datap=t1->data;
                                                cblk_w = t1->w;
                                                cblk_h = t1->h;
+                                               tileLineAdvance = tile_w - cblk_w;
 
-                                               tiledp=&tilec->data[(y * tile_w) + x];
+                                               tiledp=&tilec->data[(OPJ_UINT32)y * tile_w + (OPJ_UINT32)x];
+                                               t1->data = tiledp;
+                                               t1->data_stride = tile_w;
                                                if (tccp->qmfbid == 1) {
                                                        for (j = 0; j < cblk_h; ++j) {
                                                                for (i = 0; i < cblk_w; ++i) {
-                                                                       OPJ_INT32 tmp = tiledp[(j * tile_w) + i];
-                                                                       datap[(j * cblk_w) + i] = tmp << T1_NMSEDEC_FRACBITS;
+                                                                       tiledp[tileIndex] *= (1 << T1_NMSEDEC_FRACBITS);
+                                                                       tileIndex++;
                                                                }
+                                                               tileIndex += tileLineAdvance;
                                                        }
                                                } else {                /* if (tccp->qmfbid == 0) */
                                                        for (j = 0; j < cblk_h; ++j) {
                                                                for (i = 0; i < cblk_w; ++i) {
-                                                                       OPJ_INT32 tmp = tiledp[(j * tile_w) + i];
-                                                                       datap[(j * cblk_w) + i] =
-                                                                               opj_int_fix_mul(
+                                                                       OPJ_INT32 tmp = tiledp[tileIndex];
+                                                                       tiledp[tileIndex] =
+                                                                               opj_int_fix_mul_t1(
                                                                                tmp,
-                                                                               bandconst) >> (11 - T1_NMSEDEC_FRACBITS);
+                                                                               bandconst);
+                                                                       tileIndex++;
                                                                }
+                                                               tileIndex += tileLineAdvance;
                                                        }
                                                }
 
@@ -1551,7 +1547,8 @@ opj_bool opj_t1_encode_cblks(   opj_t1_t *t1,
                                                                tccp->cblksty,
                                                                tile->numcomps,
                                                                tile,
-                                                               mct_norms);
+                                                               mct_norms,
+                                                               mct_numcomps);
 
                                        } /* cblkno */
                                } /* precno */
@@ -1562,7 +1559,7 @@ opj_bool opj_t1_encode_cblks(   opj_t1_t *t1,
 }
 
 /** mod fixed_quality */
-void opj_t1_encode_cblk(opj_t1_t *t1,
+static void opj_t1_encode_cblk(opj_t1_t *t1,
                         opj_tcd_cblk_enc_t* cblk,
                         OPJ_UINT32 orient,
                         OPJ_UINT32 compno,
@@ -1572,7 +1569,8 @@ void opj_t1_encode_cblk(opj_t1_t *t1,
                         OPJ_UINT32 cblksty,
                         OPJ_UINT32 numcomps,
                         opj_tcd_tile_t * tile,
-                        const OPJ_FLOAT64 * mct_norms)
+                        const OPJ_FLOAT64 * mct_norms,
+                        OPJ_UINT32 mct_numcomps)
 {
        OPJ_FLOAT64 cumwmsedec = 0.0;
 
@@ -1583,19 +1581,21 @@ void opj_t1_encode_cblk(opj_t1_t *t1,
        OPJ_UINT32 passtype;
        OPJ_INT32 nmsedec = 0;
        OPJ_INT32 max;
-       OPJ_UINT32 i;
+       OPJ_UINT32 i, j;
        OPJ_BYTE type = T1_TYPE_MQ;
        OPJ_FLOAT64 tempwmsedec;
 
        max = 0;
-       for (i = 0; i < t1->w * t1->h; ++i) {
-               OPJ_INT32 tmp = abs(t1->data[i]);
-               max = opj_int_max(max, tmp);
+       for (i = 0; i < t1->w; ++i) {
+               for (j = 0; j < t1->h; ++j) {
+                       OPJ_INT32 tmp = abs(t1->data[i + j*t1->data_stride]);
+                       max = opj_int_max(max, tmp);
+               }
        }
 
-       cblk->numbps = max ? (opj_int_floorlog2(max) + 1) - T1_NMSEDEC_FRACBITS : 0;
+       cblk->numbps = max ? (OPJ_UINT32)((opj_int_floorlog2(max) + 1) - T1_NMSEDEC_FRACBITS) : 0;
 
-       bpno = cblk->numbps - 1;
+       bpno = (OPJ_INT32)(cblk->numbps - 1);
        passtype = 2;
 
        opj_mqc_resetstates(mqc);
@@ -1625,7 +1625,7 @@ void opj_t1_encode_cblk(opj_t1_t *t1,
                }
 
                /* fixed_quality */
-               tempwmsedec = opj_t1_getwmsedec(nmsedec, compno, level, orient, bpno, qmfbid, stepsize, numcomps,mct_norms) ;
+               tempwmsedec = opj_t1_getwmsedec(nmsedec, compno, level, orient, bpno, qmfbid, stepsize, numcomps,mct_norms, mct_numcomps) ;
                cumwmsedec += tempwmsedec;
                tile->distotile += tempwmsedec;
 
@@ -1642,7 +1642,7 @@ void opj_t1_encode_cblk(opj_t1_t *t1,
                        pass->term = 1;
                } else {
                        if (((bpno < ((OPJ_INT32) (cblk->numbps) - 4) && (passtype > 0))
-                               || ((bpno == (cblk->numbps - 4)) && (passtype == 2))) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) {
+                               || ((bpno == ((OPJ_INT32)cblk->numbps - 4)) && (passtype == 2))) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) {
                                if (type == T1_TYPE_RAW) {
                                        opj_mqc_flush(mqc);
                                        correction = 1;
@@ -1698,36 +1698,8 @@ void opj_t1_encode_cblk(opj_t1_t *t1,
        }
 }
 
-void opj_t1_dec_refpass(opj_t1_t *t1,
-                        OPJ_INT32 bpno,
-                        OPJ_BYTE type,
-                        OPJ_UINT32 cblksty)
-{
-       OPJ_UINT32 i, j, k;
-       OPJ_INT32 one, poshalf, neghalf;
-       OPJ_UINT32 vsc;
-       one = 1 << bpno;
-       poshalf = one >> 1;
-       neghalf = bpno > 0 ? -poshalf : -1;
-       for (k = 0; k < t1->h; k += 4) {
-               for (i = 0; i < t1->w; ++i) {
-                       for (j = k; j < k + 4 && j < t1->h; ++j) {
-                               vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0;
-                               opj_t1_dec_refpass_step(
-                                               t1,
-                                               &t1->flags[((j+1) * t1->flags_stride) + i + 1],
-                                               &t1->data[(j * t1->w) + i],
-                                               poshalf,
-                                               neghalf,
-                                               type,
-                                               vsc);
-                       }
-               }
-       }
-}                              /* VSC and  BYPASS by Antonin */
-
-
-void opj_t1_dec_refpass_step(   opj_t1_t *t1,
+#if 0
+static void opj_t1_dec_refpass_step(   opj_t1_t *t1,
                                 opj_flag_t *flagsp,
                                 OPJ_INT32 *datap,
                                 OPJ_INT32 poshalf,
@@ -1754,36 +1726,12 @@ void opj_t1_dec_refpass_step(   opj_t1_t *t1,
                *flagsp |= T1_REFINE;
        }
 }                              /* VSC and  BYPASS by Antonin  */
+#endif
+
 
-void opj_t1_dec_sigpass(opj_t1_t *t1,
-                        OPJ_INT32 bpno,
-                        OPJ_UINT32 orient,
-                        OPJ_BYTE type,
-                        OPJ_UINT32 cblksty)
-{
-       OPJ_UINT32 i, j, k, vsc;
-       OPJ_INT32 one, half, oneplushalf;
-       one = 1 << bpno;
-       half = one >> 1;
-       oneplushalf = one | half;
-       for (k = 0; k < t1->h; k += 4) {
-               for (i = 0; i < t1->w; ++i) {
-                       for (j = k; j < k + 4 && j < t1->h; ++j) {
-                               vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == t1->h - 1)) ? 1 : 0;
-                               opj_t1_dec_sigpass_step(
-                                               t1,
-                                               &t1->flags[((j+1) * t1->flags_stride) + i + 1],
-                                               &t1->data[(j * t1->w) + i],
-                                               orient,
-                                               oneplushalf,
-                                               type,
-                                               vsc);
-                       }
-               }
-       }
-}                              /* VSC and  BYPASS by Antonin */
 
-void opj_t1_dec_sigpass_step(   opj_t1_t *t1,
+#if 0
+static void opj_t1_dec_sigpass_step(   opj_t1_t *t1,
                                 opj_flag_t *flagsp,
                                 OPJ_INT32 *datap,
                                 OPJ_UINT32 orient,
@@ -1816,4 +1764,4 @@ void opj_t1_dec_sigpass_step(   opj_t1_t *t1,
                *flagsp |= T1_VISIT;
        }
 }                              /* VSC and  BYPASS by Antonin */
-
+#endif