]> granicus.if.org Git - openjpeg/commitdiff
[trunk] remove old v1 style t1_decode_cblk function and rename t1_decode_cblk_v2...
authorMickael Savinaud <savmickael@users.noreply.github.com>
Thu, 27 Sep 2012 13:28:44 +0000 (13:28 +0000)
committerMickael Savinaud <savmickael@users.noreply.github.com>
Thu, 27 Sep 2012 13:28:44 +0000 (13:28 +0000)
rename t1_dec_sigpass t1_dec_sigpass_step, t1_updateflags, t1_dec_refpass, t1_dec_refpass_step with opj_prefix and v2 type
delete unused functions in new V2 t1 framework: t1_dec_refpass_raw, t1_dec_refpass_mqc, t1_dec_refpass_mqc_vsc, t1_dec_refpass_step_raw, t1_dec_refpass_step_mqc, t1_dec_refpass_step_mqc_vsc, t1_dec_sigpass_raw, t1_dec_sigpass_mqc, t1_dec_sigpass_mqc_vsc, t1_dec_sigpass_step_raw, t1_dec_sigpass_step_mqc, t1_dec_sigpass_step_mqc_vsc

libopenjpeg/t1.c

index 1db3e662cccffb5ad3d26122bae3feee64af0a78..42c0f63ae810bcbaf5523ca258756d4fb830ea09 100644 (file)
@@ -45,7 +45,7 @@ static INLINE int 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 void opj_t1_updateflags(flag_t *flagsp, OPJ_UINT32 s, OPJ_UINT32 stride);
 /**
 Encode significant pass
 */
@@ -62,37 +62,14 @@ static void opj_t1_enc_sigpass_step(opj_t1_t *t1,
 /**
 Decode significant pass
 */
-static void t1_dec_sigpass_step(
-               opj_t1_t *t1,
-               flag_t *flagsp,
-               OPJ_INT32 *datap,
-               OPJ_UINT32 orient,
-               OPJ_INT32 oneplushalf,
-               OPJ_BYTE type,
-               OPJ_UINT32 vsc);
-/**
-Decode significant pass
-*/
-static INLINE void t1_dec_sigpass_step_raw(
-               opj_t1_t *t1,
-               flag_t *flagsp,
-               int *datap,
-               int orient,
-               int oneplushalf,
-               int vsc);
-static INLINE void t1_dec_sigpass_step_mqc(
-               opj_t1_t *t1,
-               flag_t *flagsp,
-               int *datap,
-               int orient,
-               int oneplushalf);
-static INLINE void t1_dec_sigpass_step_mqc_vsc(
-               opj_t1_t *t1,
-               flag_t *flagsp,
-               int *datap,
-               int orient,
-               int oneplushalf,
-               int vsc);
+static void opj_t1_dec_sigpass_step(opj_t1_t *t1,
+                                    flag_t *flagsp,
+                                    OPJ_INT32 *datap,
+                                    OPJ_UINT32 orient,
+                                    OPJ_INT32 oneplushalf,
+                                    OPJ_BYTE type,
+                                    OPJ_UINT32 vsc);
+
 /**
 Encode significant pass
 */
@@ -106,29 +83,13 @@ static void opj_t1_enc_sigpass( opj_t1_t *t1,
 /**
 Decode significant pass
 */
-static void 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( opj_t1_t *t1,
+                                OPJ_INT32 bpno,
+                                OPJ_UINT32 orient,
+                                OPJ_BYTE type,
+                                OPJ_UINT32 cblksty);
+
 
-/**
-Decode significant pass
-*/
-static void t1_dec_sigpass_raw(
-               opj_t1_t *t1,
-               int bpno,
-               int orient,
-               int cblksty);
-static void t1_dec_sigpass_mqc(
-               opj_t1_t *t1,
-               int bpno,
-               int orient);
-static void t1_dec_sigpass_mqc_vsc(
-               opj_t1_t *t1,
-               int bpno,
-               int orient);
 /**
 Encode refinement pass
 */
@@ -141,29 +102,7 @@ static void t1_enc_refpass_step(
                int *nmsedec,
                char type,
                int vsc);
-/**
-Decode refinement pass
-*/
-static INLINE void t1_dec_refpass_step_raw(
-               opj_t1_t *t1,
-               flag_t *flagsp,
-               int *datap,
-               int poshalf,
-               int neghalf,
-               int vsc);
-static INLINE void t1_dec_refpass_step_mqc(
-               opj_t1_t *t1,
-               flag_t *flagsp,
-               int *datap,
-               int poshalf,
-               int neghalf);
-static INLINE void t1_dec_refpass_step_mqc_vsc(
-               opj_t1_t *t1,
-               flag_t *flagsp,
-               int *datap,
-               int poshalf,
-               int neghalf,
-               int vsc);
+
 
 /**
 Encode refinement pass
@@ -178,38 +117,23 @@ static void t1_enc_refpass(
 /**
 Decode refinement pass
 */
-static void t1_dec_refpass(
-               opj_t1_t *t1,
-               OPJ_INT32 bpno,
-               OPJ_BYTE type,
-               OPJ_UINT32 cblksty);
+static void opj_t1_dec_refpass( opj_t1_t *t1,
+                                OPJ_INT32 bpno,
+                                OPJ_BYTE type,
+                                OPJ_UINT32 cblksty);
 
 /**
 Decode refinement pass
 */
-static void t1_dec_refpass_step(
-               opj_t1_t *t1,
-               flag_t *flagsp,
-               OPJ_INT32 *datap,
-               OPJ_INT32 poshalf,
-               OPJ_INT32 neghalf,
-               OPJ_BYTE type,
-               OPJ_UINT32 vsc);
+static void opj_t1_dec_refpass_step(opj_t1_t *t1,
+                                    flag_t *flagsp,
+                                    OPJ_INT32 *datap,
+                                    OPJ_INT32 poshalf,
+                                    OPJ_INT32 neghalf,
+                                    OPJ_BYTE type,
+                                    OPJ_UINT32 vsc);
 
 /**
-Decode refinement pass
-*/
-static void t1_dec_refpass_raw(
-               opj_t1_t *t1,
-               int bpno,
-               int cblksty);
-static void t1_dec_refpass_mqc(
-               opj_t1_t *t1,
-               int bpno);
-static void t1_dec_refpass_mqc_vsc(
-               opj_t1_t *t1,
-               int bpno);
-/**
 Encode clean-up pass
 */
 static void t1_enc_clnpass_step(
@@ -330,29 +254,16 @@ Decode 1 code-block
 @param orient
 @param roishift Region of interest shifting value
 @param cblksty Code-block style
-@deprecated ?
 */
-static opj_bool t1_decode_cblk(
-               opj_t1_t *t1,
-               opj_tcd_cblk_dec_t* cblk,
-               int orient,
-               int roishift,
-               int cblksty);
+static opj_bool opj_t1_decode_cblk( opj_t1_t *t1,
+                                    opj_tcd_cblk_dec_v2_t* cblk,
+                                    OPJ_UINT32 orient,
+                                    OPJ_UINT32 roishift,
+                                    OPJ_UINT32 cblksty);
 
-/**
-Decode 1 code-block
-@param t1 T1 handle
-@param cblk Code-block coding parameters
-@param orient
-@param roishift Region of interest shifting value
-@param cblksty Code-block style
-*/
-static opj_bool t1_decode_cblk_v2(
-               opj_t1_t *t1,
-               opj_tcd_cblk_dec_v2_t* cblk,
-               OPJ_UINT32 orient,
-               OPJ_UINT32 roishift,
-               OPJ_UINT32 cblksty);
+opj_bool opj_t1_allocate_buffers(   opj_t1_t *t1,
+                                    OPJ_UINT32 w,
+                                    OPJ_UINT32 h);
 
 /*@}*/
 
@@ -394,7 +305,7 @@ 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) {
+void opj_t1_updateflags(flag_t *flagsp, OPJ_UINT32 s, OPJ_UINT32 stride) {
        flag_t *np = flagsp - stride;
        flag_t *sp = flagsp + stride;
 
@@ -452,85 +363,11 @@ void opj_t1_enc_sigpass_step(   opj_t1_t *t1,
                        } else {
                                mqc_encode(mqc, v ^ t1_getspb(flag));
                        }
-                       t1_updateflags(flagsp, v, t1->flags_stride);
+                       opj_t1_updateflags(flagsp, v, t1->flags_stride);
                }
                *flagsp |= T1_VISIT;
        }
 }
-
-static INLINE void t1_dec_sigpass_step_raw(
-               opj_t1_t *t1,
-               flag_t *flagsp,
-               int *datap,
-               int orient,
-               int oneplushalf,
-               int vsc)
-{
-       int 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 (raw_decode(raw)) {
-                               v = raw_decode(raw);    /* ESSAI */
-                               *datap = v ? -oneplushalf : oneplushalf;
-                               t1_updateflags(flagsp, v, t1->flags_stride);
-                       }
-               *flagsp |= T1_VISIT;
-       }
-}                              /* VSC and  BYPASS by Antonin */
-
-static INLINE void t1_dec_sigpass_step_mqc(
-               opj_t1_t *t1,
-               flag_t *flagsp,
-               int *datap,
-               int orient,
-               int oneplushalf)
-{
-       int v, flag;
-       
-       opj_mqc_t *mqc = t1->mqc;       /* MQC component */
-       
-       flag = *flagsp;
-       if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) {
-                       mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient));
-                       if (mqc_decode(mqc)) {
-                               mqc_setcurctx(mqc, t1_getctxno_sc(flag));
-                               v = mqc_decode(mqc) ^ t1_getspb(flag);
-                               *datap = v ? -oneplushalf : oneplushalf;
-                               t1_updateflags(flagsp, v, t1->flags_stride);
-                       }
-               *flagsp |= T1_VISIT;
-       }
-}                              /* VSC and  BYPASS by Antonin */
-
-static INLINE void t1_dec_sigpass_step_mqc_vsc(
-               opj_t1_t *t1,
-               flag_t *flagsp,
-               int *datap,
-               int orient,
-               int oneplushalf,
-               int vsc)
-{
-       int 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))) {
-               mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient));
-               if (mqc_decode(mqc)) {
-                       mqc_setcurctx(mqc, t1_getctxno_sc(flag));
-                       v = mqc_decode(mqc) ^ t1_getspb(flag);
-                       *datap = v ? -oneplushalf : oneplushalf;
-                       t1_updateflags(flagsp, v, t1->flags_stride);
-               }
-               *flagsp |= T1_VISIT;
-       }
-}                              /* VSC and  BYPASS by Antonin */
-
 void opj_t1_enc_sigpass(opj_t1_t *t1,
                         OPJ_INT32 bpno,
                         OPJ_UINT32 orient,
@@ -563,98 +400,6 @@ void opj_t1_enc_sigpass(opj_t1_t *t1,
        }
 }
 
-static void t1_dec_sigpass_raw(
-               opj_t1_t *t1,
-               int bpno,
-               int orient,
-               int cblksty)
-{
-       int i, j, k, one, half, oneplushalf, vsc;
-       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;
-                               t1_dec_sigpass_step_raw(
-                                               t1,
-                                               &t1->flags[((j+1) * t1->flags_stride) + i + 1],
-                                               &t1->data[(j * t1->w) + i],
-                                               orient,
-                                               oneplushalf,
-                                               vsc);
-                       }
-               }
-       }
-}                              /* VSC and  BYPASS by Antonin */
-
-static void t1_dec_sigpass_mqc(
-               opj_t1_t *t1,
-               int bpno,
-               int orient)
-{
-       int i, j, k, one, half, oneplushalf;
-       int *data1 = t1->data;
-       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 (i = 0; i < t1->w; ++i) {
-                       int *data2 = data1 + i;
-                       flag_t *flags2 = flags1 + i;
-                       flags2 += t1->flags_stride;
-                       t1_dec_sigpass_step_mqc(t1, flags2, data2, orient, oneplushalf);
-                       data2 += t1->w;
-                       flags2 += t1->flags_stride;
-                       t1_dec_sigpass_step_mqc(t1, flags2, data2, orient, oneplushalf);
-                       data2 += t1->w;
-                       flags2 += t1->flags_stride;
-                       t1_dec_sigpass_step_mqc(t1, flags2, data2, orient, oneplushalf);
-                       data2 += t1->w;
-                       flags2 += t1->flags_stride;
-                       t1_dec_sigpass_step_mqc(t1, flags2, data2, orient, oneplushalf);
-                       data2 += t1->w;
-               }
-               data1 += t1->w << 2;
-               flags1 += t1->flags_stride << 2;
-       }
-       for (i = 0; i < t1->w; ++i) {
-               int *data2 = data1 + i;
-               flag_t *flags2 = flags1 + i;
-               for (j = k; j < t1->h; ++j) {
-                       flags2 += t1->flags_stride;
-                       t1_dec_sigpass_step_mqc(t1, flags2, data2, orient, oneplushalf);
-                       data2 += t1->w;
-               }
-       }
-}                              /* VSC and  BYPASS by Antonin */
-
-static void t1_dec_sigpass_mqc_vsc(
-               opj_t1_t *t1,
-               int bpno,
-               int orient)
-{
-       int i, j, k, one, half, oneplushalf, vsc;
-       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 = (j == k + 3 || j == t1->h - 1) ? 1 : 0;
-                               t1_dec_sigpass_step_mqc_vsc(
-                                               t1,
-                                               &t1->flags[((j+1) * t1->flags_stride) + i + 1],
-                                               &t1->data[(j * t1->w) + i],
-                                               orient,
-                                               oneplushalf,
-                                               vsc);
-                       }
-               }
-       }
-}                              /* VSC and  BYPASS by Antonin */
 
 static void t1_enc_refpass_step(
                opj_t1_t *t1,
@@ -684,69 +429,6 @@ static void t1_enc_refpass_step(
        }
 }
 
-static INLINE void t1_dec_refpass_step_raw(
-               opj_t1_t *t1,
-               flag_t *flagsp,
-               int *datap,
-               int poshalf,
-               int neghalf,
-               int vsc)
-{
-       int 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 = raw_decode(raw);
-               t = v ? poshalf : neghalf;
-               *datap += *datap < 0 ? -t : t;
-               *flagsp |= T1_REFINE;
-       }
-}                              /* VSC and  BYPASS by Antonin  */
-
-static INLINE void t1_dec_refpass_step_mqc(
-               opj_t1_t *t1,
-               flag_t *flagsp,
-               int *datap,
-               int poshalf,
-               int neghalf)
-{
-       int v, t, flag;
-       
-       opj_mqc_t *mqc = t1->mqc;       /* MQC component */
-       
-       flag = *flagsp;
-       if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) {
-               mqc_setcurctx(mqc, t1_getctxno_mag(flag));      /* ESSAI */
-                       v = mqc_decode(mqc);
-               t = v ? poshalf : neghalf;
-               *datap += *datap < 0 ? -t : t;
-               *flagsp |= T1_REFINE;
-               }
-}                              /* VSC and  BYPASS by Antonin  */
-
-static INLINE void t1_dec_refpass_step_mqc_vsc(
-               opj_t1_t *t1,
-               flag_t *flagsp,
-               int *datap,
-               int poshalf,
-               int neghalf,
-               int vsc)
-{
-       int 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) {
-               mqc_setcurctx(mqc, t1_getctxno_mag(flag));      /* ESSAI */
-               v = mqc_decode(mqc);
-               t = v ? poshalf : neghalf;
-               *datap += *datap < 0 ? -t : t;
-               *flagsp |= T1_REFINE;
-       }
-}                              /* VSC and  BYPASS by Antonin  */
 
 static void t1_enc_refpass(
                opj_t1_t *t1,
@@ -776,97 +458,6 @@ static void t1_enc_refpass(
        }
 }
 
-static void t1_dec_refpass_raw(
-               opj_t1_t *t1,
-               int bpno,
-               int cblksty)
-{
-       int i, j, k, one, poshalf, neghalf;
-       int 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;
-                               t1_dec_refpass_step_raw(
-                                               t1,
-                                               &t1->flags[((j+1) * t1->flags_stride) + i + 1],
-                                               &t1->data[(j * t1->w) + i],
-                                               poshalf,
-                                               neghalf,
-                                               vsc);
-                       }
-               }
-       }
-}                              /* VSC and  BYPASS by Antonin */
-
-static void t1_dec_refpass_mqc(
-               opj_t1_t *t1,
-               int bpno)
-{
-       int i, j, k, one, poshalf, neghalf;
-       int *data1 = t1->data;
-       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 (i = 0; i < t1->w; ++i) {
-                       int *data2 = data1 + i;
-                       flag_t *flags2 = flags1 + i;
-                       flags2 += t1->flags_stride;
-                       t1_dec_refpass_step_mqc(t1, flags2, data2, poshalf, neghalf);
-                       data2 += t1->w;
-                       flags2 += t1->flags_stride;
-                       t1_dec_refpass_step_mqc(t1, flags2, data2, poshalf, neghalf);
-                       data2 += t1->w;
-                       flags2 += t1->flags_stride;
-                       t1_dec_refpass_step_mqc(t1, flags2, data2, poshalf, neghalf);
-                       data2 += t1->w;
-                       flags2 += t1->flags_stride;
-                       t1_dec_refpass_step_mqc(t1, flags2, data2, poshalf, neghalf);
-                       data2 += t1->w;
-               }
-               data1 += t1->w << 2;
-               flags1 += t1->flags_stride << 2;
-       }
-       for (i = 0; i < t1->w; ++i) {
-               int *data2 = data1 + i;
-               flag_t *flags2 = flags1 + i;
-               for (j = k; j < t1->h; ++j) {
-                       flags2 += t1->flags_stride;
-                       t1_dec_refpass_step_mqc(t1, flags2, data2, poshalf, neghalf);
-                       data2 += t1->w;
-               }
-       }
-}                              /* VSC and  BYPASS by Antonin */
-
-static void t1_dec_refpass_mqc_vsc(
-               opj_t1_t *t1,
-               int bpno)
-{
-       int i, j, k, one, poshalf, neghalf;
-       int 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 = ((j == k + 3 || j == t1->h - 1)) ? 1 : 0;
-                               t1_dec_refpass_step_mqc_vsc(
-                                               t1,
-                                               &t1->flags[((j+1) * t1->flags_stride) + i + 1],
-                                               &t1->data[(j * t1->w) + i],
-                                               poshalf,
-                                               neghalf,
-                                               vsc);
-                       }
-               }
-       }
-}                              /* VSC and  BYPASS by Antonin */
 
 static void t1_enc_clnpass_step(
                opj_t1_t *t1,
@@ -897,7 +488,7 @@ LABEL_PARTIAL:
                        mqc_setcurctx(mqc, t1_getctxno_sc(flag));
                        v = *datap < 0 ? 1 : 0;
                        mqc_encode(mqc, v ^ t1_getspb(flag));
-                       t1_updateflags(flagsp, v, t1->flags_stride);
+                       opj_t1_updateflags(flagsp, v, t1->flags_stride);
                }
        }
        *flagsp &= ~T1_VISIT;
@@ -919,7 +510,7 @@ static void t1_dec_clnpass_step_partial(
        mqc_setcurctx(mqc, t1_getctxno_sc(flag));
        v = mqc_decode(mqc) ^ t1_getspb(flag);
        *datap = v ? -oneplushalf : oneplushalf;
-       t1_updateflags(flagsp, v, t1->flags_stride);
+       opj_t1_updateflags(flagsp, v, t1->flags_stride);
        *flagsp &= ~T1_VISIT;
 }                              /* VSC and  BYPASS by Antonin */
 
@@ -941,7 +532,7 @@ static void t1_dec_clnpass_step(
                        mqc_setcurctx(mqc, t1_getctxno_sc(flag));
                        v = mqc_decode(mqc) ^ t1_getspb(flag);
                        *datap = v ? -oneplushalf : oneplushalf;
-                       t1_updateflags(flagsp, v, t1->flags_stride);
+                       opj_t1_updateflags(flagsp, v, t1->flags_stride);
                }
        }
        *flagsp &= ~T1_VISIT;
@@ -971,7 +562,7 @@ LABEL_PARTIAL:
                        mqc_setcurctx(mqc, t1_getctxno_sc(flag));
                        v = mqc_decode(mqc) ^ t1_getspb(flag);
                        *datap = v ? -oneplushalf : oneplushalf;
-                       t1_updateflags(flagsp, v, t1->flags_stride);
+                       opj_t1_updateflags(flagsp, v, t1->flags_stride);
                }
        }
        *flagsp &= ~T1_VISIT;
@@ -1222,23 +813,23 @@ static OPJ_FLOAT64 t1_getwmsedec_v2(
        return wmsedec;
 }
 
-static opj_bool allocate_buffers(
+opj_bool opj_t1_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 = (int*) opj_aligned_malloc(datasize * sizeof(int));
+               t1->data = (OPJ_INT32*) opj_aligned_malloc(datasize * sizeof(OPJ_INT32));
                if(!t1->data){
                        return OPJ_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);
@@ -1394,96 +985,6 @@ static void t1_encode_cblk(
        }
 }
 
-static opj_bool t1_decode_cblk(
-               opj_t1_t *t1,
-               opj_tcd_cblk_dec_t* cblk,
-               int orient,
-               int roishift,
-               int cblksty)
-{
-       opj_raw_t *raw = t1->raw;       /* RAW component */
-       opj_mqc_t *mqc = t1->mqc;       /* MQC component */
-
-       int bpno, passtype;
-       int segno, passno;
-       char type = T1_TYPE_MQ; /* BYPASS mode */
-
-       if(!allocate_buffers(
-                               t1,
-                               cblk->x1 - cblk->x0,
-                               cblk->y1 - cblk->y0))
-       {
-               return OPJ_FALSE;
-       }
-
-       bpno = roishift + cblk->numbps - 1;
-       passtype = 2;
-       
-       mqc_resetstates(mqc);
-       mqc_setstate(mqc, T1_CTXNO_UNI, 0, 46);
-       mqc_setstate(mqc, T1_CTXNO_AGG, 0, 3);
-       mqc_setstate(mqc, T1_CTXNO_ZC, 0, 4);
-       
-       for (segno = 0; segno < cblk->numsegs; ++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;
-               /* FIXME: slviewer gets here with a null pointer. Why? Partially downloaded and/or corrupt textures? */
-               if(seg->data == NULL){
-                       continue;
-               }
-               if (type == T1_TYPE_RAW) {
-                       raw_init_dec(raw, (*seg->data) + seg->dataindex, seg->len);
-               } else {
-                        if (OPJ_FALSE == mqc_init_dec(mqc, (*seg->data) + seg->dataindex, seg->len)) {
-                                return OPJ_FALSE;
-                        }
-               }
-               
-               for (passno = 0; passno < seg->numpasses; ++passno) {
-                       switch (passtype) {
-                               case 0:
-                                       if (type == T1_TYPE_RAW) {
-                                               t1_dec_sigpass_raw(t1, bpno+1, orient, cblksty);
-                                       } else {
-                                               if (cblksty & J2K_CCP_CBLKSTY_VSC) {
-                                                       t1_dec_sigpass_mqc_vsc(t1, bpno+1, orient);
-                                               } else {
-                                                       t1_dec_sigpass_mqc(t1, bpno+1, orient);
-                                               }
-                                       }
-                                       break;
-                               case 1:
-                                       if (type == T1_TYPE_RAW) {
-                                               t1_dec_refpass_raw(t1, bpno+1, cblksty);
-                                       } else {
-                                               if (cblksty & J2K_CCP_CBLKSTY_VSC) {
-                                                       t1_dec_refpass_mqc_vsc(t1, bpno+1);
-                                               } else {
-                                                       t1_dec_refpass_mqc(t1, bpno+1);
-                                               }
-                                       }
-                                       break;
-                               case 2:
-                                       t1_dec_clnpass(t1, bpno+1, orient, cblksty);
-                                       break;
-                       }
-                       
-                       if ((cblksty & J2K_CCP_CBLKSTY_RESET) && type == T1_TYPE_MQ) {
-                               mqc_resetstates(mqc);
-                               mqc_setstate(mqc, T1_CTXNO_UNI, 0, 46);                         
-                               mqc_setstate(mqc, T1_CTXNO_AGG, 0, 3);
-                               mqc_setstate(mqc, T1_CTXNO_ZC, 0, 4);
-                       }
-                       if (++passtype == 3) {
-                               passtype = 0;
-                               bpno--;
-                       }
-               }
-       }
-        return OPJ_TRUE;
-}
 
 /* ----------------------------------------------------------------------- */
 
@@ -1530,7 +1031,7 @@ void t1_encode_cblks(
                                                        y += pres->y1 - pres->y0;
                                                }
 
-                                               if(!allocate_buffers(
+                                               if(!opj_t1_allocate_buffers(
                                                                        t1,
                                                                        cblk->x1 - cblk->x0,
                                                                        cblk->y1 - cblk->y0))
@@ -1673,14 +1174,14 @@ opj_bool opj_t1_decode_cblks(   opj_t1_t* t1,
                                        OPJ_INT32 x, y;
                                        OPJ_UINT32 i, j;
 
-                                        if (OPJ_FALSE == t1_decode_cblk_v2(
-                                                                t1,
-                                                                cblk,
-                                                                band->bandno,
-                                                                tccp->roishift,
-                                                                tccp->cblksty)) {
-                                                return OPJ_FALSE;
-                                        }
+                    if (OPJ_FALSE == opj_t1_decode_cblk(
+                                            t1,
+                                            cblk,
+                                            band->bandno,
+                                            tccp->roishift,
+                                            tccp->cblksty)) {
+                            return OPJ_FALSE;
+                    }
 
                                        x = cblk->x0 - band->x0;
                                        y = cblk->y0 - band->y0;
@@ -1737,12 +1238,11 @@ opj_bool opj_t1_decode_cblks(   opj_t1_t* t1,
 }
 
 
-static opj_bool t1_decode_cblk_v2(
-               opj_t1_t *t1,
-               opj_tcd_cblk_dec_v2_t* cblk,
-               OPJ_UINT32 orient,
-               OPJ_UINT32 roishift,
-               OPJ_UINT32 cblksty)
+opj_bool opj_t1_decode_cblk(opj_t1_t *t1,
+                            opj_tcd_cblk_dec_v2_t* cblk,
+                            OPJ_UINT32 orient,
+                            OPJ_UINT32 roishift,
+                            OPJ_UINT32 cblksty)
 {
        opj_raw_t *raw = t1->raw;       /* RAW component */
        opj_mqc_t *mqc = t1->mqc;       /* MQC component */
@@ -1752,7 +1252,7 @@ static opj_bool t1_decode_cblk_v2(
        OPJ_UINT32 segno, passno;
        OPJ_BYTE type = T1_TYPE_MQ; /* BYPASS mode */
 
-       if(!allocate_buffers(
+       if(!opj_t1_allocate_buffers(
                                t1,
                                cblk->x1 - cblk->x0,
                                cblk->y1 - cblk->y0))
@@ -1780,18 +1280,18 @@ static opj_bool t1_decode_cblk_v2(
                if (type == T1_TYPE_RAW) {
                        raw_init_dec(raw, (*seg->data) + seg->dataindex, seg->len);
                } else {
-                        if (OPJ_FALSE == mqc_init_dec(mqc, (*seg->data) + seg->dataindex, seg->len)) {
-                                return OPJ_FALSE;
-                        }
+            if (OPJ_FALSE == mqc_init_dec(mqc, (*seg->data) + seg->dataindex, seg->len)) {
+                    return OPJ_FALSE;
+            }
                }
 
                for (passno = 0; passno < seg->real_num_passes; ++passno) {
                        switch (passtype) {
                                case 0:
-                                       t1_dec_sigpass(t1, bpno+1, orient, type, cblksty);
+                                       opj_t1_dec_sigpass(t1, bpno+1, orient, type, cblksty);
                                        break;
                                case 1:
-                                       t1_dec_refpass(t1, bpno+1, type, cblksty);
+                                       opj_t1_dec_refpass(t1, bpno+1, type, cblksty);
                                        break;
                                case 2:
                                        t1_dec_clnpass(t1, bpno+1, orient, cblksty);
@@ -1857,7 +1357,7 @@ opj_bool opj_t1_encode_cblks(   opj_t1_t *t1,
                                                        y += pres->y1 - pres->y0;
                                                }
 
-                                               if(!allocate_buffers(
+                                               if(!opj_t1_allocate_buffers(
                                                                        t1,
                                                                        cblk->x1 - cblk->x0,
                                                                        cblk->y1 - cblk->y0))
@@ -2048,12 +1548,10 @@ static void t1_encode_cblk_v2(
        }
 }
 
-
-static void t1_dec_refpass(
-               opj_t1_t *t1,
-               OPJ_INT32 bpno,
-               OPJ_BYTE type,
-               OPJ_UINT32 cblksty)
+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;
@@ -2065,7 +1563,7 @@ static void t1_dec_refpass(
                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;
-                               t1_dec_refpass_step(
+                               opj_t1_dec_refpass_step(
                                                t1,
                                                &t1->flags[((j+1) * t1->flags_stride) + i + 1],
                                                &t1->data[(j * t1->w) + i],
@@ -2079,14 +1577,13 @@ static void t1_dec_refpass(
 }                              /* VSC and  BYPASS by Antonin */
 
 
-static void t1_dec_refpass_step(
-               opj_t1_t *t1,
-               flag_t *flagsp,
-               OPJ_INT32 *datap,
-               OPJ_INT32 poshalf,
-               OPJ_INT32 neghalf,
-               OPJ_BYTE type,
-               OPJ_UINT32 vsc)
+void opj_t1_dec_refpass_step(   opj_t1_t *t1,
+                                flag_t *flagsp,
+                                OPJ_INT32 *datap,
+                                OPJ_INT32 poshalf,
+                                OPJ_INT32 neghalf,
+                                OPJ_BYTE type,
+                                OPJ_UINT32 vsc)
 {
        OPJ_INT32  t;
        OPJ_UINT32 v,flag;
@@ -2108,12 +1605,11 @@ static void t1_dec_refpass_step(
        }
 }                              /* VSC and  BYPASS by Antonin  */
 
-static void t1_dec_sigpass(
-               opj_t1_t *t1,
-               OPJ_INT32 bpno,
-               OPJ_UINT32 orient,
-               OPJ_BYTE type,
-               OPJ_UINT32 cblksty)
+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;
@@ -2124,7 +1620,7 @@ static void t1_dec_sigpass(
                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;
-                               t1_dec_sigpass_step(
+                               opj_t1_dec_sigpass_step(
                                                t1,
                                                &t1->flags[((j+1) * t1->flags_stride) + i + 1],
                                                &t1->data[(j * t1->w) + i],
@@ -2137,14 +1633,13 @@ static void t1_dec_sigpass(
        }
 }                              /* VSC and  BYPASS by Antonin */
 
-static void t1_dec_sigpass_step(
-               opj_t1_t *t1,
-               flag_t *flagsp,
-               OPJ_INT32 *datap,
-               OPJ_UINT32 orient,
-               OPJ_INT32 oneplushalf,
-               OPJ_BYTE type,
-               OPJ_UINT32 vsc)
+void opj_t1_dec_sigpass_step(   opj_t1_t *t1,
+                                flag_t *flagsp,
+                                OPJ_INT32 *datap,
+                                OPJ_UINT32 orient,
+                                OPJ_INT32 oneplushalf,
+                                OPJ_BYTE type,
+                                OPJ_UINT32 vsc)
 {
        OPJ_UINT32 v, flag;
 
@@ -2157,7 +1652,7 @@ static void t1_dec_sigpass_step(
                        if (raw_decode(raw)) {
                                v = raw_decode(raw);    /* ESSAI */
                                *datap = v ? -oneplushalf : oneplushalf;
-                               t1_updateflags(flagsp, v, t1->flags_stride);
+                               opj_t1_updateflags(flagsp, v, t1->flags_stride);
                        }
                } else {
                        mqc_setcurctx(mqc, t1_getctxno_zc(flag, orient));
@@ -2165,7 +1660,7 @@ static void t1_dec_sigpass_step(
                                mqc_setcurctx(mqc, t1_getctxno_sc(flag));
                                v = mqc_decode(mqc) ^ t1_getspb(flag);
                                *datap = v ? -oneplushalf : oneplushalf;
-                               t1_updateflags(flagsp, v, t1->flags_stride);
+                               opj_t1_updateflags(flagsp, v, t1->flags_stride);
                        }
                }
                *flagsp |= T1_VISIT;