fixed minor bugs which were triggering warnings at compilation (different signedness...
[openjpeg.git] / libopenjpeg / t1.c
index 724ec04d0c23e25234c3582bd6af0d3f61162935..139ff48e4f818fe4df4d793edafe5e32302f32da 100644 (file)
@@ -6,6 +6,7 @@
  * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
  * Copyright (c) 2005, Herve Drolon, FreeImage Team
  * Copyright (c) 2007, Callum Lerwick <seg@haxxed.com>
+ * Copyright (c) 2008, Jerome Fimes, Communications & Systemes <jerome.fimes@c-s.fr>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include "opj_includes.h"
+#include "t1.h"
 #include "t1_luts.h"
-
+#include "opj_includes.h"
+#include "j2k.h"
+#include "tcd.h"
+#include "mqc.h"
+#include "raw.h"
+#include "opj_malloc.h"
+#include "int.h"
+#include "dwt.h"
+#include "fix.h"
 /** @defgroup T1 T1 - Implementation of the tier-1 coding */
 /*@{*/
 
 /** @name Local static functions */
 /*@{*/
 
-static char t1_getctxno_zc(int f, int orient);
-static char t1_getctxno_sc(int f);
-static char t1_getctxno_mag(int f);
-static char t1_getspb(int f);
-static short t1_getnmsedec_sig(int x, int bitpos);
-static short t1_getnmsedec_ref(int x, int bitpos);
-static void t1_updateflags(flag_t *flagsp, int s, int stride);
+static INLINE OPJ_BYTE t1_getctxno_zc(OPJ_UINT32 f, OPJ_UINT32 orient);
+static OPJ_BYTE t1_getctxno_sc(OPJ_UINT32 f);
+static INLINE OPJ_UINT32 t1_getctxno_mag(OPJ_UINT32 f);
+static OPJ_BYTE t1_getspb(OPJ_UINT32 f);
+static OPJ_INT16 t1_getnmsedec_sig(OPJ_UINT32 x, OPJ_UINT32 bitpos);
+static OPJ_INT16 t1_getnmsedec_ref(OPJ_UINT32 x, OPJ_UINT32 bitpos);
+static void t1_updateflags(flag_t *flagsp, OPJ_UINT32 s, OPJ_UINT32 stride);
 /**
 Encode significant pass
 */
 static void t1_enc_sigpass_step(
                opj_t1_t *t1,
                flag_t *flagsp,
-               int *datap,
-               int orient,
-               int bpno,
-               int one,
-               int *nmsedec,
-               char type,
-               int vsc);
+               OPJ_INT32 *datap,
+               OPJ_UINT32 orient,
+               OPJ_INT32 bpno,
+               OPJ_INT32 one,
+               OPJ_INT32 *nmsedec,
+               OPJ_BYTE type,
+               OPJ_UINT32 vsc);
 /**
 Decode significant pass
 */
 static void t1_dec_sigpass_step(
                opj_t1_t *t1,
                flag_t *flagsp,
-               int *datap,
-               int orient,
-               int oneplushalf,
-               char type,
-               int vsc);
+               OPJ_INT32 *datap,
+               OPJ_UINT32 orient,
+               OPJ_INT32 oneplushalf,
+               OPJ_BYTE type,
+               OPJ_UINT32 vsc);
 /**
 Encode significant pass
 */
 static void t1_enc_sigpass(
                opj_t1_t *t1,
-               int bpno,
-               int orient,
-               int *nmsedec,
-               char type,
-               int cblksty);
+               OPJ_INT32 bpno,
+               OPJ_UINT32 orient,
+               OPJ_INT32 *nmsedec,
+               OPJ_BYTE type,
+               OPJ_UINT32 cblksty);
 /**
 Decode significant pass
 */
 static void t1_dec_sigpass(
                opj_t1_t *t1,
-               int bpno,
-               int orient,
-               char type,
-               int cblksty);
+               OPJ_INT32 bpno,
+               OPJ_UINT32 orient,
+               OPJ_BYTE type,
+               OPJ_UINT32 cblksty);
 /**
 Encode refinement pass
 */
 static void t1_enc_refpass_step(
                opj_t1_t *t1,
                flag_t *flagsp,
-               int *datap,
-               int bpno,
-               int one,
-               int *nmsedec,
-               char type,
-               int vsc);
+               OPJ_INT32 *datap,
+               OPJ_INT32 bpno,
+               OPJ_INT32 one,
+               OPJ_INT32 *nmsedec,
+               OPJ_BYTE type,
+               OPJ_UINT32 vsc);
 /**
 Decode refinement pass
 */
 static void t1_dec_refpass_step(
                opj_t1_t *t1,
                flag_t *flagsp,
-               int *datap,
-               int poshalf,
-               int neghalf,
-               char type,
-               int vsc);
+               OPJ_INT32 *datap,
+               OPJ_INT32 poshalf,
+               OPJ_INT32 neghalf,
+               OPJ_BYTE type,
+               OPJ_UINT32 vsc);
 /**
 Encode refinement pass
 */
 static void t1_enc_refpass(
                opj_t1_t *t1,
-               int bpno,
-               int *nmsedec,
-               char type,
-               int cblksty);
+               OPJ_INT32 bpno,
+               OPJ_INT32 *nmsedec,
+               OPJ_BYTE type,
+               OPJ_UINT32 cblksty);
 /**
 Decode refinement pass
 */
 static void t1_dec_refpass(
                opj_t1_t *t1,
-               int bpno,
-               char type,
-               int cblksty);
+               OPJ_INT32 bpno,
+               OPJ_BYTE type,
+               OPJ_UINT32 cblksty);
 /**
 Encode clean-up pass
 */
 static void t1_enc_clnpass_step(
                opj_t1_t *t1,
                flag_t *flagsp,
-               int *datap,
-               int orient,
-               int bpno,
-               int one,
-               int *nmsedec,
-               int partial,
-               int vsc);
+               OPJ_INT32 *datap,
+               OPJ_UINT32 orient,
+               OPJ_INT32 bpno,
+               OPJ_INT32 one,
+               OPJ_INT32 *nmsedec,
+               OPJ_UINT32 partial,
+               OPJ_UINT32 vsc);
 /**
 Decode clean-up pass
 */
 static void t1_dec_clnpass_step(
                opj_t1_t *t1,
                flag_t *flagsp,
-               int *datap,
-               int orient,
-               int oneplushalf,
-               int partial,
-               int vsc);
+               OPJ_INT32 *datap,
+               OPJ_UINT32 orient,
+               OPJ_INT32 oneplushalf,
+               OPJ_UINT32 partial,
+               OPJ_UINT32 vsc);
 /**
 Encode clean-up pass
 */
 static void t1_enc_clnpass(
                opj_t1_t *t1,
-               int bpno,
-               int orient,
-               int *nmsedec,
-               int cblksty);
+               OPJ_INT32 bpno,
+               OPJ_UINT32 orient,
+               OPJ_INT32 *nmsedec,
+               OPJ_UINT32 cblksty);
 /**
 Decode clean-up pass
 */
 static void t1_dec_clnpass(
                opj_t1_t *t1,
-               int bpno,
-               int orient,
-               int cblksty);
-static double t1_getwmsedec(
-               int nmsedec,
-               int compno,
-               int level,
-               int orient,
-               int bpno,
-               int qmfbid,
-               double stepsize,
-               int numcomps);
+               OPJ_INT32 bpno,
+               OPJ_UINT32 orient,
+               OPJ_UINT32 cblksty);
+
+static OPJ_FLOAT64 t1_getwmsedec(
+               OPJ_INT32 nmsedec,
+               OPJ_UINT32 compno,
+               OPJ_UINT32 level,
+               OPJ_UINT32 orient,
+               OPJ_INT32 bpno,
+               OPJ_UINT32 qmfbid,
+               OPJ_FLOAT64 stepsize,
+               OPJ_UINT32 numcomps,
+               const OPJ_FLOAT64 * mct_norms);
 /**
 Encode 1 code-block
 @param t1 T1 handle
@@ -194,15 +205,16 @@ Encode 1 code-block
 */
 static void t1_encode_cblk(
                opj_t1_t *t1,
-               opj_tcd_cblk_t * cblk,
-               int orient,
-               int compno,
-               int level,
-               int qmfbid,
-               double stepsize,
-               int cblksty,
-               int numcomps,
-               opj_tcd_tile_t * tile);
+               opj_tcd_cblk_enc_t* cblk,
+               OPJ_UINT32 orient,
+               OPJ_UINT32 compno,
+               OPJ_UINT32 level,
+               OPJ_UINT32 qmfbid,
+               OPJ_FLOAT64 stepsize,
+               OPJ_UINT32 cblksty,
+               OPJ_UINT32 numcomps,
+               opj_tcd_tile_t * tile,
+               const OPJ_FLOAT64 * mct_norms);
 /**
 Decode 1 code-block
 @param t1 T1 handle
@@ -213,10 +225,10 @@ Decode 1 code-block
 */
 static void t1_decode_cblk(
                opj_t1_t *t1,
-               opj_tcd_cblk_* cblk,
-               int orient,
-               int roishift,
-               int cblksty);
+               opj_tcd_cblk_dec_t* cblk,
+               OPJ_UINT32 orient,
+               OPJ_UINT32 roishift,
+               OPJ_UINT32 cblksty);
 
 /*@}*/
 
@@ -224,23 +236,26 @@ static void t1_decode_cblk(
 
 /* ----------------------------------------------------------------------- */
 
-static char t1_getctxno_zc(int f, int orient) {
+static OPJ_BYTE t1_getctxno_zc(OPJ_UINT32 f, OPJ_UINT32 orient) {
        return lut_ctxno_zc[(orient << 8) | (f & T1_SIG_OTH)];
 }
 
-static char t1_getctxno_sc(int f) {
+static OPJ_BYTE t1_getctxno_sc(OPJ_UINT32 f) {
        return lut_ctxno_sc[(f & (T1_SIG_PRIM | T1_SGN)) >> 4];
 }
 
-static char t1_getctxno_mag(int f) {
-       return lut_ctxno_mag[(f & T1_SIG_OTH) | (((f & T1_REFINE) != 0) << 11)];
+static OPJ_UINT32 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 char t1_getspb(int f) {
+static OPJ_BYTE t1_getspb(OPJ_UINT32 f) {
        return lut_spb[(f & (T1_SIG_PRIM | T1_SGN)) >> 4];
 }
 
-static short t1_getnmsedec_sig(int x, int bitpos) {
+static OPJ_INT16 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)];
        }
@@ -248,7 +263,7 @@ static short t1_getnmsedec_sig(int x, int bitpos) {
        return lut_nmsedec_sig0[x & ((1 << T1_NMSEDEC_BITS) - 1)];
 }
 
-static short t1_getnmsedec_ref(int x, int bitpos) {
+static OPJ_INT16 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)];
        }
@@ -256,66 +271,65 @@ static short t1_getnmsedec_ref(int x, int bitpos) {
     return lut_nmsedec_ref0[x & ((1 << T1_NMSEDEC_BITS) - 1)];
 }
 
-static void t1_updateflags(flag_t *flagsp, int s, int stride) {
+static void t1_updateflags(flag_t *flagsp, OPJ_UINT32 s, OPJ_UINT32 stride) {
        flag_t *np = flagsp - stride;
        flag_t *sp = flagsp + stride;
 
        static const flag_t mod[] = {
-               T1_SIG_S,            T1_SIG_N,            T1_SIG_E,            T1_SIG_W,
-               T1_SIG_S | T1_SGN_S, T1_SIG_N | T1_SGN_N, T1_SIG_E | T1_SGN_E, T1_SIG_W | T1_SGN_W
+               T1_SIG_S, T1_SIG_S|T1_SGN_S,
+               T1_SIG_E, T1_SIG_E|T1_SGN_E,
+               T1_SIG_W, T1_SIG_W|T1_SGN_W,
+               T1_SIG_N, T1_SIG_N|T1_SGN_N
        };
 
-       s <<= 2;
-
        np[-1] |= T1_SIG_SE;
        np[0]  |= mod[s];
        np[1]  |= T1_SIG_SW;
 
        flagsp[-1] |= mod[s+2];
-       flagsp[1]  |= mod[s+3];
+       flagsp[0]  |= T1_SIG;
+       flagsp[1]  |= mod[s+4];
 
        sp[-1] |= T1_SIG_NE;
-       sp[0]  |= mod[s+1];
+       sp[0]  |= mod[s+6];
        sp[1]  |= T1_SIG_NW;
 }
 
 static void t1_enc_sigpass_step(
                opj_t1_t *t1,
                flag_t *flagsp,
-               int *datap,
-               int orient,
-               int bpno,
-               int one,
-               int *nmsedec,
-               char type,
-               int vsc)
+               OPJ_INT32 *datap,
+               OPJ_UINT32 orient,
+               OPJ_INT32 bpno,
+               OPJ_INT32 one,
+               OPJ_INT32 *nmsedec,
+               OPJ_BYTE type,
+               OPJ_UINT32 vsc)
 {
-       int v, flag;
+       OPJ_INT32 v;
+       OPJ_UINT32 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))) {
                v = int_abs(*datap) & one ? 1 : 0;
+               mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient));       /* ESSAI */
                if (type == T1_TYPE_RAW) {      /* BYPASS/LAZY MODE */
-                       mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient));       /* ESSAI */
                        mqc_bypass_enc(mqc, v);
                } else {
-                       mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient));
                        mqc_encode(mqc, v);
                }
                if (v) {
                        v = *datap < 0 ? 1 : 0;
                        *nmsedec +=     t1_getnmsedec_sig(int_abs(*datap), bpno + T1_NMSEDEC_FRACBITS);
+                       mqc_setcurctx(mqc, t1_getctxno_sc(flag));       /* ESSAI */
                        if (type == T1_TYPE_RAW) {      /* BYPASS/LAZY MODE */
-                               mqc_setcurctx(mqc, t1_getctxno_sc(flag));       /* ESSAI */
                                mqc_bypass_enc(mqc, v);
                        } else {
-                               mqc_setcurctx(mqc, t1_getctxno_sc(flag));
                                mqc_encode(mqc, v ^ t1_getspb(flag));
                        }
                        t1_updateflags(flagsp, v, t1->flags_stride);
-                       *flagsp |= T1_SIG;
                }
                *flagsp |= T1_VISIT;
        }
@@ -324,13 +338,13 @@ static void t1_enc_sigpass_step(
 static void t1_dec_sigpass_step(
                opj_t1_t *t1,
                flag_t *flagsp,
-               int *datap,
-               int orient,
-               int oneplushalf,
-               char type,
-               int vsc)
+               OPJ_INT32 *datap,
+               OPJ_UINT32 orient,
+               OPJ_INT32 oneplushalf,
+               OPJ_BYTE type,
+               OPJ_UINT32 vsc)
 {
-       int v, flag;
+       OPJ_UINT32 v, flag;
        
        opj_raw_t *raw = t1->raw;       /* RAW component */
        opj_mqc_t *mqc = t1->mqc;       /* MQC component */
@@ -342,7 +356,6 @@ static void t1_dec_sigpass_step(
                                v = raw_decode(raw);    /* ESSAI */
                                *datap = v ? -oneplushalf : oneplushalf;
                                t1_updateflags(flagsp, v, t1->flags_stride);
-                               *flagsp |= T1_SIG;
                        }
                } else {
                        mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient));
@@ -351,7 +364,6 @@ static void t1_dec_sigpass_step(
                                v = mqc_decode(mqc) ^ t1_getspb(flag);
                                *datap = v ? -oneplushalf : oneplushalf;
                                t1_updateflags(flagsp, v, t1->flags_stride);
-                               *flagsp |= T1_SIG;
                        }
                }
                *flagsp |= T1_VISIT;
@@ -360,13 +372,15 @@ static void t1_dec_sigpass_step(
 
 static void t1_enc_sigpass(
                opj_t1_t *t1,
-               int bpno,
-               int orient,
-               int *nmsedec,
-               char type,
-               int cblksty)
+               OPJ_INT32 bpno,
+               OPJ_UINT32 orient,
+               OPJ_INT32 *nmsedec,
+               OPJ_BYTE type,
+               OPJ_UINT32 cblksty)
 {
-       int i, j, k, one, vsc;
+       OPJ_UINT32 i, j, k, vsc;
+       OPJ_INT32 one;
+
        *nmsedec = 0;
        one = 1 << (bpno + T1_NMSEDEC_FRACBITS);
        for (k = 0; k < t1->h; k += 4) {
@@ -390,12 +404,13 @@ static void t1_enc_sigpass(
 
 static void t1_dec_sigpass(
                opj_t1_t *t1,
-               int bpno,
-               int orient,
-               char type,
-               int cblksty)
+               OPJ_INT32 bpno,
+               OPJ_UINT32 orient,
+               OPJ_BYTE type,
+               OPJ_UINT32 cblksty)
 {
-       int i, j, k, one, half, oneplushalf, vsc;
+       OPJ_UINT32 i, j, k, vsc;
+       OPJ_INT32 one, half, oneplushalf;
        one = 1 << bpno;
        half = one >> 1;
        oneplushalf = one | half;
@@ -419,14 +434,15 @@ static void t1_dec_sigpass(
 static void t1_enc_refpass_step(
                opj_t1_t *t1,
                flag_t *flagsp,
-               int *datap,
-               int bpno,
-               int one,
-               int *nmsedec,
-               char type,
-               int vsc)
+               OPJ_INT32 *datap,
+               OPJ_INT32 bpno,
+               OPJ_INT32 one,
+               OPJ_INT32 *nmsedec,
+               OPJ_BYTE type,
+               OPJ_UINT32 vsc)
 {
-       int v, flag;
+       OPJ_INT32 v;
+       OPJ_UINT32 flag;
        
        opj_mqc_t *mqc = t1->mqc;       /* MQC component */
        
@@ -434,11 +450,10 @@ static void t1_enc_refpass_step(
        if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) {
                *nmsedec += t1_getnmsedec_ref(int_abs(*datap), bpno + T1_NMSEDEC_FRACBITS);
                v = int_abs(*datap) & one ? 1 : 0;
+               mqc_setcurctx(mqc, t1_getctxno_mag(flag));      /* ESSAI */
                if (type == T1_TYPE_RAW) {      /* BYPASS/LAZY MODE */
-                       mqc_setcurctx(mqc, t1_getctxno_mag(flag));      /* ESSAI */
                        mqc_bypass_enc(mqc, v);
                } else {
-                       mqc_setcurctx(mqc, t1_getctxno_mag(flag));
                        mqc_encode(mqc, v);
                }
                *flagsp |= T1_REFINE;
@@ -448,24 +463,24 @@ static void t1_enc_refpass_step(
 static void t1_dec_refpass_step(
                opj_t1_t *t1,
                flag_t *flagsp,
-               int *datap,
-               int poshalf,
-               int neghalf,
-               char type,
-               int vsc)
+               OPJ_INT32 *datap,
+               OPJ_INT32 poshalf,
+               OPJ_INT32 neghalf,
+               OPJ_BYTE type,
+               OPJ_UINT32 vsc)
 {
-       int v, t, flag;
+       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) {
+               mqc_setcurctx(mqc, t1_getctxno_mag(flag));      /* ESSAI */
                if (type == T1_TYPE_RAW) {
-                       mqc_setcurctx(mqc, t1_getctxno_mag(flag));      /* ESSAI */
                        v = raw_decode(raw);
                } else {
-                       mqc_setcurctx(mqc, t1_getctxno_mag(flag));
                        v = mqc_decode(mqc);
                }
                t = v ? poshalf : neghalf;
@@ -476,12 +491,14 @@ static void t1_dec_refpass_step(
 
 static void t1_enc_refpass(
                opj_t1_t *t1,
-               int bpno,
-               int *nmsedec,
-               char type,
-               int cblksty)
+               OPJ_INT32 bpno,
+               OPJ_INT32 *nmsedec,
+               OPJ_BYTE type,
+               OPJ_UINT32 cblksty)
 {
-       int i, j, k, one, vsc;
+       OPJ_UINT32 i, j, k, vsc;
+       OPJ_INT32 one;
+
        *nmsedec = 0;
        one = 1 << (bpno + T1_NMSEDEC_FRACBITS);
        for (k = 0; k < t1->h; k += 4) {
@@ -504,12 +521,13 @@ static void t1_enc_refpass(
 
 static void t1_dec_refpass(
                opj_t1_t *t1,
-               int bpno,
-               char type,
-               int cblksty)
+               OPJ_INT32 bpno,
+               OPJ_BYTE type,
+               OPJ_UINT32 cblksty)
 {
-       int i, j, k, one, poshalf, neghalf;
-       int vsc;
+       OPJ_UINT32 i, j, k;
+       OPJ_INT32 one, poshalf, neghalf;
+       OPJ_UINT32 vsc;
        one = 1 << bpno;
        poshalf = one >> 1;
        neghalf = bpno > 0 ? -poshalf : -1;
@@ -533,15 +551,16 @@ static void t1_dec_refpass(
 static void t1_enc_clnpass_step(
                opj_t1_t *t1,
                flag_t *flagsp,
-               int *datap,
-               int orient,
-               int bpno,
-               int one,
-               int *nmsedec,
-               int partial,
-               int vsc)
+               OPJ_INT32 *datap,
+               OPJ_UINT32 orient,
+               OPJ_INT32 bpno,
+               OPJ_INT32 one,
+               OPJ_INT32 *nmsedec,
+               OPJ_UINT32 partial,
+               OPJ_UINT32 vsc)
 {
-       int v, flag;
+       OPJ_INT32 v;
+       OPJ_UINT32 flag;
        
        opj_mqc_t *mqc = t1->mqc;       /* MQC component */
        
@@ -560,7 +579,6 @@ LABEL_PARTIAL:
                        v = *datap < 0 ? 1 : 0;
                        mqc_encode(mqc, v ^ t1_getspb(flag));
                        t1_updateflags(flagsp, v, t1->flags_stride);
-                       *flagsp |= T1_SIG;
                }
        }
        *flagsp &= ~T1_VISIT;
@@ -569,13 +587,14 @@ LABEL_PARTIAL:
 static void t1_dec_clnpass_step(
                opj_t1_t *t1,
                flag_t *flagsp,
-               int *datap,
-               int orient,
-               int oneplushalf,
-               int partial,
-               int vsc)
+               OPJ_INT32 *datap,
+               OPJ_UINT32 orient,
+               OPJ_INT32 oneplushalf,
+               OPJ_UINT32 partial,
+               OPJ_UINT32 vsc)
 {
-       int v, flag;
+       OPJ_INT32 v;
+       OPJ_UINT32 flag;
        
        opj_mqc_t *mqc = t1->mqc;       /* MQC component */
        
@@ -591,7 +610,6 @@ LABEL_PARTIAL:
                        v = mqc_decode(mqc) ^ t1_getspb(flag);
                        *datap = v ? -oneplushalf : oneplushalf;
                        t1_updateflags(flagsp, v, t1->flags_stride);
-                       *flagsp |= T1_SIG;
                }
        }
        *flagsp &= ~T1_VISIT;
@@ -599,12 +617,14 @@ LABEL_PARTIAL:
 
 static void t1_enc_clnpass(
                opj_t1_t *t1,
-               int bpno,
-               int orient,
-               int *nmsedec,
-               int cblksty)
+               OPJ_INT32 bpno,
+               OPJ_UINT32 orient,
+               OPJ_INT32 *nmsedec,
+               OPJ_UINT32 cblksty)
 {
-       int i, j, k, one, agg, runlen, vsc;
+       OPJ_UINT32 i, j, k;
+       OPJ_INT32 one;
+       OPJ_UINT32 agg, runlen, vsc;
        
        opj_mqc_t *mqc = t1->mqc;       /* MQC component */
        
@@ -663,12 +683,14 @@ static void t1_enc_clnpass(
 
 static void t1_dec_clnpass(
                opj_t1_t *t1,
-               int bpno,
-               int orient,
-               int cblksty)
+               OPJ_INT32 bpno,
+               OPJ_UINT32 orient,
+               OPJ_UINT32 cblksty)
 {
-       int i, j, k, one, half, oneplushalf, agg, runlen, vsc;
-       int segsym = cblksty & J2K_CCP_CBLKSTY_SEGSYM;
+       OPJ_UINT32 i, j, k, one;
+       OPJ_INT32 half, oneplushalf;
+       OPJ_UINT32 agg, runlen, vsc;
+       OPJ_UINT32 segsym = cblksty & J2K_CCP_CBLKSTY_SEGSYM;
        
        opj_mqc_t *mqc = t1->mqc;       /* MQC component */
        
@@ -718,7 +740,7 @@ static void t1_dec_clnpass(
                }
        }
        if (segsym) {
-               int v = 0;
+               OPJ_UINT32 v = 0;
                mqc_setcurctx(mqc, T1_CTXNO_UNI);
                v = mqc_decode(mqc);
                v = (v << 1) | mqc_decode(mqc);
@@ -734,54 +756,58 @@ static void t1_dec_clnpass(
 
 
 /** mod fixed_quality */
-static double t1_getwmsedec(
-               int nmsedec,
-               int compno,
-               int level,
-               int orient,
-               int bpno,
-               int qmfbid,
-               double stepsize,
-               int numcomps)
+static OPJ_FLOAT64 t1_getwmsedec(
+               OPJ_INT32 nmsedec,
+               OPJ_UINT32 compno,
+               OPJ_UINT32 level,
+               OPJ_UINT32 orient,
+               OPJ_INT32 bpno,
+               OPJ_UINT32 qmfbid,
+               OPJ_FLOAT64 stepsize,
+               OPJ_UINT32 numcomps,
+               const OPJ_FLOAT64 * mct_norms)
 {
-       double w1, w2, wmsedec;
-       if (qmfbid == 1) {
-               w1 = (numcomps > 1) ? mct_getnorm(compno) : 1.0;
+       OPJ_FLOAT64 w1 = 1, w2, wmsedec;
+       if
+               (mct_norms)
+       {
+               w1 = mct_norms[compno];
+       }
+       if (qmfbid == 1) 
+       {
                w2 = dwt_getnorm(level, orient);
        } else {                        /* if (qmfbid == 0) */
-               w1 = (numcomps > 1) ? mct_getnorm_real(compno) : 1.0;
                w2 = dwt_getnorm_real(level, orient);
        }
        wmsedec = w1 * w2 * stepsize * (1 << bpno);
        wmsedec *= wmsedec * nmsedec / 8192.0;
-       
        return wmsedec;
 }
 
 static bool allocate_buffers(
                opj_t1_t *t1,
-               int w,
-               int h)
+               OPJ_UINT32 w,
+               OPJ_UINT32 h)
 {
-       int datasize=w * h;
-       int flagssize;
+       OPJ_UINT32 datasize=w * h;
+       OPJ_UINT32 flagssize;
 
        if(datasize > t1->datasize){
                opj_aligned_free(t1->data);
-               t1->data=opj_aligned_malloc(datasize * sizeof(int));
+               t1->data = (OPJ_INT32*) opj_aligned_malloc(datasize * sizeof(OPJ_INT32));
                if(!t1->data){
                        return false;
                }
                t1->datasize=datasize;
        }
-       memset(t1->data,0,datasize * sizeof(int));
+       memset(t1->data,0,datasize * sizeof(OPJ_INT32));
 
        t1->flags_stride=w+2;
-       flagssize = t1->flags_stride * (h+2);
+       flagssize=t1->flags_stride * (h+2);
 
        if(flagssize > t1->flagssize){
                opj_aligned_free(t1->flags);
-               t1->flags=opj_aligned_malloc(flagssize * sizeof(flag_t));
+               t1->flags = (flag_t*) opj_aligned_malloc(flagssize * sizeof(flag_t));
                if(!t1->flags){
                        return false;
                }
@@ -798,33 +824,36 @@ static bool allocate_buffers(
 /** mod fixed_quality */
 static void t1_encode_cblk(
                opj_t1_t *t1,
-               opj_tcd_cblk_t * cblk,
-               int orient,
-               int compno,
-               int level,
-               int qmfbid,
-               double stepsize,
-               int cblksty,
-               int numcomps,
-               opj_tcd_tile_t * tile)
+               opj_tcd_cblk_enc_t* cblk,
+               OPJ_UINT32 orient,
+               OPJ_UINT32 compno,
+               OPJ_UINT32 level,
+               OPJ_UINT32 qmfbid,
+               OPJ_FLOAT64 stepsize,
+               OPJ_UINT32 cblksty,
+               OPJ_UINT32 numcomps,
+               opj_tcd_tile_t * tile,
+               const OPJ_FLOAT64 * mct_norms)
 {
-       int i, j;
-       int passno;
-       int bpno, passtype;
-       int max;
-       int nmsedec = 0;
-       double cumwmsedec = 0.0;
-       char type = T1_TYPE_MQ;
-       
+       OPJ_FLOAT64 cumwmsedec = 0.0;
+
        opj_mqc_t *mqc = t1->mqc;       /* MQC component */
-       
+
+       OPJ_UINT32 passno;
+       OPJ_INT32 bpno;
+       OPJ_UINT32 passtype;
+       OPJ_INT32 nmsedec = 0;
+       OPJ_INT32 max;
+       OPJ_UINT32 i;
+       OPJ_BYTE type = T1_TYPE_MQ;
+       OPJ_FLOAT64 tempwmsedec;
+
        max = 0;
-       for (j = 0; j < t1->h; ++j) {
-               for (i = 0; i < t1->w; ++i) {
-                       max = int_max(max, int_abs(t1->data[(j * t1->w) + i]));
-               }
+       for (i = 0; i < t1->w * t1->h; ++i) {
+               OPJ_INT32 tmp = abs(t1->data[i]);
+               max = int_max(max, tmp);
        }
-       
+
        cblk->numbps = max ? (int_floorlog2(max) + 1) - T1_NMSEDEC_FRACBITS : 0;
        
        bpno = cblk->numbps - 1;
@@ -838,8 +867,8 @@ static void t1_encode_cblk(
        
        for (passno = 0; bpno >= 0; ++passno) {
                opj_tcd_pass_t *pass = &cblk->passes[passno];
-               int correction = 3;
-               type = ((bpno < (cblk->numbps - 4)) && (passtype < 2) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ;
+               OPJ_UINT32 correction = 3;
+               type = ((bpno < ((OPJ_INT32) (cblk->numbps) - 4)) && (passtype < 2) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ;
                
                switch (passtype) {
                        case 0:
@@ -857,8 +886,9 @@ static void t1_encode_cblk(
                }
                
                /* fixed_quality */
-               cumwmsedec += t1_getwmsedec(nmsedec, compno, level, orient, bpno, qmfbid, stepsize, numcomps);
-               tile->distotile += t1_getwmsedec(nmsedec, compno, level, orient, bpno, qmfbid, stepsize, numcomps);
+               tempwmsedec = t1_getwmsedec(nmsedec, compno, level, orient, bpno, qmfbid, stepsize, numcomps,mct_norms) ;
+               cumwmsedec += tempwmsedec;
+               tile->distotile += tempwmsedec;
                
                /* Code switch "RESTART" (i.e. TERMALL) */
                if ((cblksty & J2K_CCP_CBLKSTY_TERMALL) && !((passtype == 2) && (bpno - 1 < 0))) {
@@ -872,7 +902,7 @@ static void t1_encode_cblk(
                        }
                        pass->term = 1;
                } else {
-                       if (((bpno < (cblk->numbps - 4) && (passtype > 0)) 
+                       if (((bpno < ((OPJ_INT32) (cblk->numbps) - 4) && (passtype > 0)) 
                                || ((bpno == (cblk->numbps - 4)) && (passtype == 2))) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) {
                                if (type == T1_TYPE_RAW) {
                                        mqc_flush(mqc);
@@ -894,7 +924,7 @@ static void t1_encode_cblk(
                }
                
                if (pass->term && bpno > 0) {
-                       type = ((bpno < (cblk->numbps - 4)) && (passtype < 2) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ;
+                       type = ((bpno < ((OPJ_INT32) (cblk->numbps) - 4)) && (passtype < 2) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ;
                        if (type == T1_TYPE_RAW)
                                mqc_bypass_init_enc(mqc);
                        else
@@ -931,18 +961,19 @@ static void t1_encode_cblk(
 
 static void t1_decode_cblk(
                opj_t1_t *t1,
-               opj_tcd_cblk_* cblk,
-               int orient,
-               int roishift,
-               int cblksty)
+               opj_tcd_cblk_dec_t* cblk,
+               OPJ_UINT32 orient,
+               OPJ_UINT32 roishift,
+               OPJ_UINT32 cblksty)
 {
-       int bpno, passtype;
-       int segno, passno;
-       char type = T1_TYPE_MQ; /* BYPASS mode */
-       
        opj_raw_t *raw = t1->raw;       /* RAW component */
        opj_mqc_t *mqc = t1->mqc;       /* MQC component */
 
+       OPJ_INT32 bpno;
+       OPJ_UINT32 passtype;
+       OPJ_UINT32 segno, passno;
+       OPJ_BYTE type = T1_TYPE_MQ; /* BYPASS mode */
+
        if(!allocate_buffers(
                                t1,
                                cblk->x1 - cblk->x0,
@@ -959,18 +990,22 @@ static void t1_decode_cblk(
        mqc_setstate(mqc, T1_CTXNO_AGG, 0, 3);
        mqc_setstate(mqc, T1_CTXNO_ZC, 0, 4);
        
-       for (segno = 0; segno < cblk->numsegs; ++segno) {
+       for (segno = 0; segno < cblk->real_num_segs; ++segno) {
                opj_tcd_seg_t *seg = &cblk->segs[segno];
                
                /* BYPASS mode */
-               type = ((bpno <= (cblk->numbps - 1) - 4) && (passtype < 2) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ;
+               type = ((bpno <= ((OPJ_INT32) (cblk->numbps) - 1) - 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;
+               }
                if (type == T1_TYPE_RAW) {
-                       raw_init_dec(raw, seg->data, seg->len);
+                       raw_init_dec(raw, (*seg->data) + seg->dataindex, seg->len);
                } else {
-                       mqc_init_dec(mqc, seg->data, seg->len);
+                       mqc_init_dec(mqc, (*seg->data) + seg->dataindex, seg->len);
                }
                
-               for (passno = 0; passno < seg->numpasses; ++passno) {
+               for (passno = 0; passno < seg->real_num_passes; ++passno) {
                        switch (passtype) {
                                case 0:
                                        t1_dec_sigpass(t1, bpno+1, orient, type, cblksty);
@@ -998,63 +1033,108 @@ static void t1_decode_cblk(
 }
 
 /* ----------------------------------------------------------------------- */
+/**
+ * Creates a new Tier 1 handle 
+ * 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* t1_create()
+{
+       opj_t1_t *l_t1 = 00;
 
-opj_t1_t* t1_create(opj_common_ptr cinfo) {
-       opj_t1_t *t1 = (opj_t1_t*) malloc(sizeof(opj_t1_t));
-       if(!t1)
-               return NULL;
-
-               t1->cinfo = cinfo;
-               /* create MQC and RAW handles */
-               t1->mqc = mqc_create();
-               t1->raw = raw_create();
-
-       t1->datasize=0;
-       t1->data=NULL;
-       t1->flagssize=0;
-       t1->flags=NULL;
+       l_t1 = (opj_t1_t*) opj_malloc(sizeof(opj_t1_t));
+       if
+               (!l_t1)
+       {
+               return 00;
+       }
+       memset(l_t1,0,sizeof(opj_t1_t));
 
-       return t1;
+       /* create MQC and RAW handles */
+       l_t1->mqc = mqc_create();
+       if
+               (! l_t1->mqc)
+       {
+               t1_destroy(l_t1);
+               return 00;
+       }
+       l_t1->raw = raw_create();
+       if
+               (! l_t1->raw)
+       {
+               t1_destroy(l_t1);
+               return 00;
+       }
+       return l_t1;
 }
 
-void t1_destroy(opj_t1_t *t1) {
-       if(t1) {
-               /* destroy MQC and RAW handles */
-               mqc_destroy(t1->mqc);
-               raw_destroy(t1->raw);
-               opj_aligned_free(t1->data);
-               opj_aligned_free(t1->flags);
-               free(t1);
+/**
+ * Destroys a previously created T1 handle
+ * 
+ * @param p_t1 Tier 1 handle to destroy
+*/
+void t1_destroy(opj_t1_t *p_t1) 
+{
+       if
+               (! p_t1) 
+       {
+               return;
        }
+       
+       /* destroy MQC and RAW handles */
+       mqc_destroy(p_t1->mqc);
+       p_t1->mqc = 00;
+       raw_destroy(p_t1->raw);
+       p_t1->raw = 00;
+       if
+               (p_t1->data)
+       {
+               opj_aligned_free(p_t1->data);
+               p_t1->data = 00;
+       }
+       if
+               (p_t1->flags)
+       {
+               opj_aligned_free(p_t1->flags);
+               p_t1->flags = 00;
+       }
+       opj_free(p_t1);
 }
 
-void t1_encode_cblks(
+bool t1_encode_cblks(
                opj_t1_t *t1,
                opj_tcd_tile_t *tile,
-               opj_tcp_t *tcp)
+               opj_tcp_t *tcp,
+               const OPJ_FLOAT64 * mct_norms)
 {
-       int compno, resno, bandno, precno, cblkno;
+       OPJ_UINT32 compno, resno, bandno, precno, cblkno;
 
        tile->distotile = 0;            /* fixed_quality */
 
        for (compno = 0; compno < tile->numcomps; ++compno) {
-               opj_tcd_tilecomp_t *tilec = &tile->comps[compno];
+               opj_tcd_tilecomp_t* tilec = &tile->comps[compno];
+               opj_tccp_t* tccp = &tcp->tccps[compno];
+               OPJ_UINT32 tile_w = 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 *band = &res->bands[bandno];
+                               opj_tcd_band_t* restrict band = &res->bands[bandno];
 
                                for (precno = 0; precno < res->pw * res->ph; ++precno) {
                                        opj_tcd_precinct_t *prc = &band->precincts[precno];
 
                                        for (cblkno = 0; cblkno < prc->cw * prc->ch; ++cblkno) {
-                                               int x, y, w, i, j, orient;
-                                               opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];
-
-                                               x = cblk->x0 - band->x0;
-                                               y = cblk->y0 - band->y0;
+                                               opj_tcd_cblk_enc_t* cblk = &prc->cblks.enc[cblkno];
+                                               OPJ_INT32 * restrict datap;
+                                               OPJ_INT32* restrict tiledp;
+                                               OPJ_UINT32 cblk_w;
+                                               OPJ_UINT32 cblk_h;
+                                               OPJ_UINT32 i, j;
+
+                                               OPJ_INT32 x = cblk->x0 - band->x0;
+                                               OPJ_INT32 y = cblk->y0 - band->y0;
                                                if (band->bandno & 1) {
                                                        opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1];
                                                        x += pres->x1 - pres->x0;
@@ -1069,142 +1149,138 @@ void t1_encode_cblks(
                                                                        cblk->x1 - cblk->x0,
                                                                        cblk->y1 - cblk->y0))
                                                {
-                                                       return;
+                                                       return false;
                                                }
 
-                                               w = tilec->x1 - tilec->x0;
-                                               if (tcp->tccps[compno].qmfbid == 1) {
-                                                       for (j = 0; j < t1->h; ++j) {
-                                                               for (i = 0; i < t1->w; ++i) {
-                                                                       t1->data[(j * t1->w) + i] =
-                                                                               tilec->data[(x + i) + (y + j) * w] << T1_NMSEDEC_FRACBITS;
+                                               datap=t1->data;
+                                               cblk_w = t1->w;
+                                               cblk_h = t1->h;
+
+                                               tiledp=&tilec->data[(y * tile_w) + x];
+                                               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;
                                                                }
                                                        }
-                                               } else {                /* if (tcp->tccps[compno].qmfbid == 0) */
-                                                       for (j = 0; j < t1->h; ++j) {
-                                                               for (i = 0; i < t1->w; ++i) {
-                                                                       t1->data[(j * t1->w) + i] = 
+                                               } 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] =
                                                                                fix_mul(
-                                                                               tilec->data[x + i + (y + j) * w],
-                                                                               8192 * 8192 / ((int) floor(band->stepsize * 8192))) >> (11 - T1_NMSEDEC_FRACBITS);
+                                                                               tmp,
+                                                                               8192 * 8192 / ((OPJ_INT32) floor(band->stepsize * 8192))) >> (11 - T1_NMSEDEC_FRACBITS);
                                                                }
                                                        }
                                                }
-                                               orient = band->bandno;  /* FIXME */
-                                               if (orient == 2) {
-                                                       orient = 1;
-                                               } else if (orient == 1) {
-                                                       orient = 2;
-                                               }
 
                                                t1_encode_cblk(
                                                                t1,
                                                                cblk,
-                                                               orient,
+                                                               band->bandno,
                                                                compno,
                                                                tilec->numresolutions - 1 - resno,
-                                                               tcp->tccps[compno].qmfbid,
+                                                               tccp->qmfbid,
                                                                band->stepsize,
-                                                               tcp->tccps[compno].cblksty,
+                                                               tccp->cblksty,
                                                                tile->numcomps,
-                                                               tile);
+                                                               tile,
+                                                               mct_norms);
 
                                        } /* cblkno */
                                } /* precno */
                        } /* bandno */
                } /* resno  */
        } /* compno  */
+       return true;
 }
 
 void t1_decode_cblks(
-               opj_t1_t *t1,
-               opj_tcd_tile_t *tile,
-               opj_tcp_t *tcp)
+               opj_t1_tt1,
+               opj_tcd_tilecomp_t* tilec,
+               opj_tccp_t* tccp)
 {
-       int compno, resno, bandno, precno, cblkno;
-
-       for (compno = 0; compno < tile->numcomps; ++compno) {
-               opj_tcd_tilecomp_t *tilec = &tile->comps[compno];
-
-               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 *band = &res->bands[bandno];
-
-                               for (precno = 0; precno < res->pw * res->ph; ++precno) {
-                                       opj_tcd_precinct_t *prc = &band->precincts[precno];
-
-                                       for (cblkno = 0; cblkno < prc->cw * prc->ch; ++cblkno) {
-                                               int x, y, w, i, j, orient, cblk_w, cblk_h;
-                                               opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];
-
-                                               orient = band->bandno;  /* FIXME */
-                                               if (orient == 2) {
-                                                       orient = 1;
-                                               } else if (orient == 1) {
-                                                       orient = 2;
-                                               }
-                                               
-                                               t1_decode_cblk(
-                                                               t1,
-                                                               cblk,
-                                                               orient,
-                                                               tcp->tccps[compno].roishift,
-                                                               tcp->tccps[compno].cblksty);
-
-                                               x = cblk->x0 - band->x0;
-                                               y = cblk->y0 - band->y0;
-                                               if (band->bandno & 1) {
-                                                       opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1];
-                                                       x += pres->x1 - pres->x0;
-                                               }
-                                               if (band->bandno & 2) {
-                                                       opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1];
-                                                       y += pres->y1 - pres->y0;
-                                               }
-
-                                               cblk_w = cblk->x1 - cblk->x0;
-                                               cblk_h = cblk->y1 - cblk->y0;
-
-                                               if (tcp->tccps[compno].roishift) {
-                                                       int thresh = 1 << tcp->tccps[compno].roishift;
-                                                       for (j = 0; j < cblk_h; ++j) {
-                                                               for (i = 0; i < cblk_w; ++i) {
-                                                                       int val = t1->data[(j * t1->w) + i];
-                                                                       int mag = int_abs(val);
-                                                                       if (mag >= thresh) {
-                                                                               mag >>= tcp->tccps[compno].roishift;
-                                                                               t1->data[(j * t1->w) + i] = val < 0 ? -mag : mag;
-                                                                       }
+       OPJ_UINT32 resno, bandno, precno, cblkno;
+
+       OPJ_UINT32 tile_w = 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];
+
+                       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_UINT32 cblk_w, cblk_h;
+                                       OPJ_INT32 x, y;
+                                       OPJ_UINT32 i, j;
+
+                                       t1_decode_cblk(
+                                                       t1,
+                                                       cblk,
+                                                       band->bandno,
+                                                       tccp->roishift,
+                                                       tccp->cblksty);
+
+                                       x = cblk->x0 - band->x0;
+                                       y = cblk->y0 - band->y0;
+                                       if (band->bandno & 1) {
+                                               opj_tcd_resolution_t* pres = &tilec->resolutions[resno - 1];
+                                               x += pres->x1 - pres->x0;
+                                       }
+                                       if (band->bandno & 2) {
+                                               opj_tcd_resolution_t* pres = &tilec->resolutions[resno - 1];
+                                               y += pres->y1 - pres->y0;
+                                       }
+
+                                       datap=t1->data;
+                                       cblk_w = t1->w;
+                                       cblk_h = t1->h;
+
+                                       if (tccp->roishift) {
+                                               OPJ_INT32 thresh = 1 << tccp->roishift;
+                                               for (j = 0; j < cblk_h; ++j) {
+                                                       for (i = 0; i < cblk_w; ++i) {
+                                                               OPJ_INT32 val = datap[(j * cblk_w) + i];
+                                                               OPJ_INT32 mag = abs(val);
+                                                               if (mag >= thresh) {
+                                                                       mag >>= tccp->roishift;
+                                                                       datap[(j * cblk_w) + i] = val < 0 ? -mag : mag;
                                                                }
                                                        }
                                                }
-                                               
-                                               w = tilec->x1 - tilec->x0;
-                                               if (tcp->tccps[compno].qmfbid == 1) {
-                                                       for (j = 0; j < cblk_h; ++j) {
-                                                               for (i = 0; i < cblk_w; ++i) {
-                                                                       tilec->data[x + i + (y + j) * w] = t1->data[(j * t1->w) + i]/2;
-                                                               }
+                                       }
+
+                                       tiledp=(void*)&tilec->data[(y * tile_w) + x];
+                                       if (tccp->qmfbid == 1) {
+                                               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 >> 1;
                                                        }
-                                               } else {                /* if (tcp->tccps[compno].qmfbid == 0) */
-                                                       for (j = 0; j < cblk_h; ++j) {
-                                                               for (i = 0; i < cblk_w; ++i) {
-                                                                       if (t1->data[(j * t1->w) + i] >> 1 == 0) {
-                                                                               tilec->data[x + i + (y + j) * w] = 0;
-                                                                       } else {
-                                                                               double tmp = (double)(t1->data[(j * t1->w) + i] * band->stepsize * 4096.0);
-                                                                               int tmp2 = ((int) (floor(fabs(tmp)))) + ((int) floor(fabs(tmp*2))%2);                                                                   
-                                                                               tilec->data[x + i + (y + j) * w] = ((tmp<0)?-tmp2:tmp2);
-                                                                       }
-                                                               }
+                                               }
+                                       } else {                /* if (tccp->qmfbid == 0) */
+                                               for (j = 0; j < cblk_h; ++j) {
+                                                       for (i = 0; i < cblk_w; ++i) {
+                                                               float tmp = datap[(j * cblk_w) + i] * band->stepsize;
+                                                               ((float*)tiledp)[(j * tile_w) + i] = tmp;
                                                        }
                                                }
-                                       } /* cblkno */
-                               } /* precno */
-                       } /* bandno */
-               } /* resno */
-       } /* compno */
+                                       }
+                                       //opj_free(cblk->segs);
+                                       //cblk->segs = 00;
+                               } /* cblkno */
+                       } /* precno */
+               } /* bandno */
+       } /* resno */
 }
 
+