ref: 7cdf839293bf3c0b5c3f52d368635156530ddf85
dir: /jpc_cs.c/
/*
* Copyright (c) 1999-2000 Image Power, Inc. and the University of
* British Columbia.
* Copyright (c) 2001-2002 Michael David Adams.
* All rights reserved.
*/
/* __START_OF_JASPER_LICENSE__
*
* JasPer License Version 2.0
*
* Copyright (c) 2001-2006 Michael David Adams
* Copyright (c) 1999-2000 Image Power, Inc.
* Copyright (c) 1999-2000 The University of British Columbia
*
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person (the
* "User") obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, and/or sell copies of the Software, and to permit
* persons to whom the Software is furnished to do so, subject to the
* following conditions:
*
* 1. The above copyright notices and this permission notice (which
* includes the disclaimer below) shall be included in all copies or
* substantial portions of the Software.
*
* 2. The name of a copyright holder shall not be used to endorse or
* promote products derived from the Software without specific prior
* written permission.
*
* THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
* LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
* THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
* "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
* INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
* PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
* THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
* EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
* BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
* PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS
* GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
* ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE
* IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
* SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
* AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
* SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
* THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
* PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
* RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
* EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
*
* __END_OF_JASPER_LICENSE__
*/
/*
* JPEG-2000 Code Stream Library
*
* $Id$
*/
/******************************************************************************\
* Includes.
\******************************************************************************/
#include "jpc_cs.h"
#include "jasper/jas_malloc.h"
#include "jasper/jas_debug.h"
#include "jasper/jas_image.h"
/******************************************************************************\
* Types.
\******************************************************************************/
/* Marker segment table entry. */
typedef struct {
int id;
const char *name;
jpc_msops_t ops;
} jpc_mstabent_t;
/******************************************************************************\
* Local prototypes.
\******************************************************************************/
static const jpc_mstabent_t *jpc_mstab_lookup(int id);
static int jpc_poc_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out);
static int jpc_poc_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in);
static void jpc_poc_destroyparms(jpc_ms_t *ms);
static int jpc_unk_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in);
static int jpc_sot_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in);
static int jpc_siz_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in);
static int jpc_cod_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in);
static int jpc_coc_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in);
static int jpc_qcd_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in);
static int jpc_qcc_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in);
static int jpc_rgn_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in);
static int jpc_sop_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in);
static int jpc_ppm_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in);
static int jpc_ppt_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in);
static int jpc_crg_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in);
static int jpc_com_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in);
static int jpc_sot_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out);
static int jpc_siz_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out);
static int jpc_cod_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out);
static int jpc_coc_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out);
static int jpc_qcd_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out);
static int jpc_qcc_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out);
static int jpc_rgn_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out);
static int jpc_unk_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out);
static int jpc_sop_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out);
static int jpc_ppm_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out);
static int jpc_ppt_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out);
static int jpc_crg_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out);
static int jpc_com_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out);
static void jpc_siz_destroyparms(jpc_ms_t *ms);
static void jpc_qcd_destroyparms(jpc_ms_t *ms);
static void jpc_qcc_destroyparms(jpc_ms_t *ms);
static void jpc_cod_destroyparms(jpc_ms_t *ms);
static void jpc_coc_destroyparms(jpc_ms_t *ms);
static void jpc_unk_destroyparms(jpc_ms_t *ms);
static void jpc_ppm_destroyparms(jpc_ms_t *ms);
static void jpc_ppt_destroyparms(jpc_ms_t *ms);
static void jpc_crg_destroyparms(jpc_ms_t *ms);
static void jpc_com_destroyparms(jpc_ms_t *ms);
static void jpc_qcx_destroycompparms(jpc_qcxcp_t *compparms);
static int jpc_qcx_getcompparms(jpc_qcxcp_t *compparms, jpc_cstate_t *cstate,
jas_stream_t *in, uint_fast16_t len);
static int jpc_qcx_putcompparms(jpc_qcxcp_t *compparms, jpc_cstate_t *cstate,
jas_stream_t *out);
static void jpc_cox_destroycompparms(jpc_coxcp_t *compparms);
static int jpc_cox_getcompparms(jpc_ms_t *ms, jpc_cstate_t *cstate,
jas_stream_t *in, int prtflag, jpc_coxcp_t *compparms);
static int jpc_cox_putcompparms(jpc_ms_t *ms, jpc_cstate_t *cstate,
jas_stream_t *out, int prtflag, jpc_coxcp_t *compparms);
/******************************************************************************\
* Global data.
\******************************************************************************/
static const jpc_mstabent_t jpc_mstab[] = {
{JPC_MS_SOC, "SOC", {0, 0, 0}},
{JPC_MS_SOT, "SOT", {0, jpc_sot_getparms, jpc_sot_putparms}},
{JPC_MS_SOD, "SOD", {0, 0, 0}},
{JPC_MS_EOC, "EOC", {0, 0, 0}},
{JPC_MS_SIZ, "SIZ", {jpc_siz_destroyparms, jpc_siz_getparms, jpc_siz_putparms}},
{JPC_MS_COD, "COD", {jpc_cod_destroyparms, jpc_cod_getparms, jpc_cod_putparms}},
{JPC_MS_COC, "COC", {jpc_coc_destroyparms, jpc_coc_getparms, jpc_coc_putparms}},
{JPC_MS_RGN, "RGN", {0, jpc_rgn_getparms, jpc_rgn_putparms}},
{JPC_MS_QCD, "QCD", {jpc_qcd_destroyparms, jpc_qcd_getparms, jpc_qcd_putparms}},
{JPC_MS_QCC, "QCC", {jpc_qcc_destroyparms, jpc_qcc_getparms, jpc_qcc_putparms}},
{JPC_MS_POC, "POC", {jpc_poc_destroyparms, jpc_poc_getparms, jpc_poc_putparms}},
{JPC_MS_TLM, "TLM", {jpc_unk_destroyparms, jpc_unk_getparms, jpc_unk_putparms,}},
{JPC_MS_PLM, "PLM", {jpc_unk_destroyparms, jpc_unk_getparms, jpc_unk_putparms}},
{JPC_MS_PPM, "PPM", {jpc_ppm_destroyparms, jpc_ppm_getparms, jpc_ppm_putparms}},
{JPC_MS_PPT, "PPT", {jpc_ppt_destroyparms, jpc_ppt_getparms, jpc_ppt_putparms}},
{JPC_MS_SOP, "SOP", {0, jpc_sop_getparms, jpc_sop_putparms}},
{JPC_MS_EPH, "EPH", {0, 0, 0}},
{JPC_MS_CRG, "CRG", {jpc_crg_destroyparms, jpc_crg_getparms, jpc_crg_putparms}},
{JPC_MS_COM, "COM", {jpc_com_destroyparms, jpc_com_getparms, jpc_com_putparms}},
{-1, "UNKNOWN", {jpc_unk_destroyparms, jpc_unk_getparms, jpc_unk_putparms}}
};
/******************************************************************************\
* Code stream manipulation functions.
\******************************************************************************/
/* Create a code stream state object. */
jpc_cstate_t *jpc_cstate_create()
{
jpc_cstate_t *cstate;
if (!(cstate = jas_malloc(sizeof(jpc_cstate_t)))) {
return 0;
}
cstate->numcomps = 0;
return cstate;
}
/* Destroy a code stream state object. */
void jpc_cstate_destroy(jpc_cstate_t *cstate)
{
jas_free(cstate);
}
/* Read a marker segment from a stream. */
jpc_ms_t *jpc_getms(jas_stream_t *in, jpc_cstate_t *cstate)
{
jpc_ms_t *ms;
const jpc_mstabent_t *mstabent;
jas_stream_t *tmpstream;
if (!(ms = jpc_ms_create(0))) {
return 0;
}
/* Get the marker type. */
if (jpc_getuint16(in, &ms->id) || ms->id < JPC_MS_MIN) {
jpc_ms_destroy(ms);
return 0;
}
mstabent = jpc_mstab_lookup(ms->id);
ms->ops = &mstabent->ops;
/* Get the marker segment length and parameters if present. */
/* Note: It is tacitly assumed that a marker segment cannot have
parameters unless it has a length field. That is, there cannot
be a parameters field without a length field and vice versa. */
if (JPC_MS_HASPARMS(ms->id)) {
/* Get the length of the marker segment. */
if (jpc_getuint16(in, &ms->len) || ms->len < 3) {
jpc_ms_destroy(ms);
return 0;
}
/* Calculate the length of the marker segment parameters. */
ms->len -= 2;
/* Create and prepare a temporary memory stream from which to
read the marker segment parameters. */
/* Note: This approach provides a simple way of ensuring that
we never read beyond the end of the marker segment (even if
the marker segment length is errantly set too small). */
if (!(tmpstream = jas_stream_memopen(0, 0))) {
jpc_ms_destroy(ms);
return 0;
}
if (jas_stream_copy(tmpstream, in, ms->len) ||
jas_stream_seek(tmpstream, 0, 0) < 0) {
jas_stream_close(tmpstream);
jpc_ms_destroy(ms);
return 0;
}
/* Get the marker segment parameters. */
if ((*ms->ops->getparms)(ms, cstate, tmpstream)) {
ms->ops = 0;
jpc_ms_destroy(ms);
jas_stream_close(tmpstream);
return 0;
}
if (JAS_CAST(jas_ulong, jas_stream_tell(tmpstream)) != ms->len) {
jas_eprintf(
"warning: trailing garbage in marker segment (%ld bytes)\n",
ms->len - jas_stream_tell(tmpstream));
}
/* Close the temporary stream. */
jas_stream_close(tmpstream);
} else {
/* There are no marker segment parameters. */
ms->len = 0;
}
/* Update the code stream state information based on the type of
marker segment read. */
/* Note: This is a bit of a hack, but I'm not going to define another
type of virtual function for this one special case. */
if (ms->id == JPC_MS_SIZ) {
cstate->numcomps = ms->parms.siz.numcomps;
}
return ms;
}
/* Write a marker segment to a stream. */
int jpc_putms(jas_stream_t *out, jpc_cstate_t *cstate, jpc_ms_t *ms)
{
jas_stream_t *tmpstream;
int len;
/* Output the marker segment type. */
if (jpc_putuint16(out, ms->id)) {
return -1;
}
/* Output the marker segment length and parameters if necessary. */
if (ms->ops->putparms) {
/* Create a temporary stream in which to buffer the
parameter data. */
if (!(tmpstream = jas_stream_memopen(0, 0))) {
return -1;
}
if ((*ms->ops->putparms)(ms, cstate, tmpstream)) {
jas_stream_close(tmpstream);
return -1;
}
/* Get the number of bytes of parameter data written. */
if ((len = jas_stream_tell(tmpstream)) < 0) {
jas_stream_close(tmpstream);
return -1;
}
ms->len = len;
/* Write the marker segment length and parameter data to
the output stream. */
if (jas_stream_seek(tmpstream, 0, 0) < 0 ||
jpc_putuint16(out, ms->len + 2) ||
jas_stream_copy(out, tmpstream, ms->len) < 0) {
jas_stream_close(tmpstream);
return -1;
}
/* Close the temporary stream. */
jas_stream_close(tmpstream);
}
/* This is a bit of a hack, but I'm not going to define another
type of virtual function for this one special case. */
if (ms->id == JPC_MS_SIZ) {
cstate->numcomps = ms->parms.siz.numcomps;
}
return 0;
}
/******************************************************************************\
* Marker segment operations.
\******************************************************************************/
/* Create a marker segment of the specified type. */
jpc_ms_t *jpc_ms_create(int type)
{
jpc_ms_t *ms;
const jpc_mstabent_t *mstabent;
if (!(ms = jas_malloc(sizeof(jpc_ms_t)))) {
return 0;
}
ms->id = type;
ms->len = 0;
mstabent = jpc_mstab_lookup(ms->id);
ms->ops = &mstabent->ops;
memset(&ms->parms, 0, sizeof(jpc_msparms_t));
return ms;
}
/* Destroy a marker segment. */
void jpc_ms_destroy(jpc_ms_t *ms)
{
if (ms->ops && ms->ops->destroyparms) {
(*ms->ops->destroyparms)(ms);
}
jas_free(ms);
}
/******************************************************************************\
* SOT marker segment operations.
\******************************************************************************/
static int jpc_sot_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in)
{
jpc_sot_t *sot = &ms->parms.sot;
/* Eliminate compiler warning about unused variables. */
(void)cstate;
if (jpc_getuint16(in, &sot->tileno) ||
jpc_getuint32(in, &sot->len) ||
jpc_getuint8(in, &sot->partno) ||
jpc_getuint8(in, &sot->numparts)) {
return -1;
}
if (sot->tileno > 65534 || sot->len < 12 || sot->partno > 254) {
return -1;
}
if (jas_stream_eof(in)) {
return -1;
}
return 0;
}
static int jpc_sot_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out)
{
jpc_sot_t *sot = &ms->parms.sot;
/* Eliminate compiler warning about unused variables. */
(void)cstate;
if (jpc_putuint16(out, sot->tileno) ||
jpc_putuint32(out, sot->len) ||
jpc_putuint8(out, sot->partno) ||
jpc_putuint8(out, sot->numparts)) {
return -1;
}
return 0;
}
/******************************************************************************\
* SIZ marker segment operations.
\******************************************************************************/
static void jpc_siz_destroyparms(jpc_ms_t *ms)
{
jpc_siz_t *siz = &ms->parms.siz;
if (siz->comps) {
jas_free(siz->comps);
}
}
static int jpc_siz_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate,
jas_stream_t *in)
{
jpc_siz_t *siz = &ms->parms.siz;
unsigned int i;
uint_fast8_t tmp;
siz->comps = 0;
/* Eliminate compiler warning about unused variables. */
(void)cstate;
if (jpc_getuint16(in, &siz->caps) ||
jpc_getuint32(in, &siz->width) ||
jpc_getuint32(in, &siz->height) ||
jpc_getuint32(in, &siz->xoff) ||
jpc_getuint32(in, &siz->yoff) ||
jpc_getuint32(in, &siz->tilewidth) ||
jpc_getuint32(in, &siz->tileheight) ||
jpc_getuint32(in, &siz->tilexoff) ||
jpc_getuint32(in, &siz->tileyoff) ||
jpc_getuint16(in, &siz->numcomps)) {
goto error;
}
if (!siz->width || !siz->height) {
jas_eprintf("reference grid cannot have zero area\n");
goto error;
}
if (!siz->tilewidth || !siz->tileheight) {
jas_eprintf("tile cannot have zero area\n");
goto error;
}
if (!siz->numcomps || siz->numcomps > 16384) {
jas_eprintf("number of components not in permissible range\n");
goto error;
}
if (siz->xoff >= siz->width) {
jas_eprintf("XOsiz not in permissible range\n");
goto error;
}
if (siz->yoff >= siz->height) {
jas_eprintf("YOsiz not in permissible range\n");
goto error;
}
if (siz->tilexoff > siz->xoff || siz->tilexoff + siz->tilewidth <= siz->xoff) {
jas_eprintf("XTOsiz not in permissible range\n");
goto error;
}
if (siz->tileyoff > siz->yoff || siz->tileyoff + siz->tileheight <= siz->yoff) {
jas_eprintf("YTOsiz not in permissible range\n");
goto error;
}
if (!(siz->comps = jas_alloc2(siz->numcomps, sizeof(jpc_sizcomp_t)))) {
goto error;
}
for (i = 0; i < siz->numcomps; ++i) {
if (jpc_getuint8(in, &tmp) ||
jpc_getuint8(in, &siz->comps[i].hsamp) ||
jpc_getuint8(in, &siz->comps[i].vsamp)) {
goto error;
}
if (siz->comps[i].hsamp == 0) {
jas_eprintf("invalid XRsiz value %d\n", siz->comps[i].hsamp);
goto error;
}
if (siz->comps[i].vsamp == 0) {
jas_eprintf("invalid YRsiz value %d\n", siz->comps[i].vsamp);
goto error;
}
siz->comps[i].sgnd = (tmp >> 7) & 1;
siz->comps[i].prec = (tmp & 0x7f) + 1;
/* we need at least 1 bit of precision for unsigned
samples and 2 bits for signed samples */
if (siz->comps[i].prec < 1U + siz->comps[i].sgnd ||
siz->comps[i].prec > 38) {
jas_eprintf("invalid component bit depth %d\n", siz->comps[i].prec);
goto error;
}
}
if (jas_stream_eof(in)) {
goto error;
}
return 0;
error:
if (siz->comps) {
jas_free(siz->comps);
}
return -1;
}
static int jpc_siz_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out)
{
jpc_siz_t *siz = &ms->parms.siz;
unsigned int i;
/* Eliminate compiler warning about unused variables. */
(void)cstate;
assert(siz->width && siz->height && siz->tilewidth &&
siz->tileheight && siz->numcomps);
if (jpc_putuint16(out, siz->caps) ||
jpc_putuint32(out, siz->width) ||
jpc_putuint32(out, siz->height) ||
jpc_putuint32(out, siz->xoff) ||
jpc_putuint32(out, siz->yoff) ||
jpc_putuint32(out, siz->tilewidth) ||
jpc_putuint32(out, siz->tileheight) ||
jpc_putuint32(out, siz->tilexoff) ||
jpc_putuint32(out, siz->tileyoff) ||
jpc_putuint16(out, siz->numcomps)) {
return -1;
}
for (i = 0; i < siz->numcomps; ++i) {
if (jpc_putuint8(out, ((siz->comps[i].sgnd & 1) << 7) |
((siz->comps[i].prec - 1) & 0x7f)) ||
jpc_putuint8(out, siz->comps[i].hsamp) ||
jpc_putuint8(out, siz->comps[i].vsamp)) {
return -1;
}
}
return 0;
}
/******************************************************************************\
* COD marker segment operations.
\******************************************************************************/
static void jpc_cod_destroyparms(jpc_ms_t *ms)
{
jpc_cod_t *cod = &ms->parms.cod;
jpc_cox_destroycompparms(&cod->compparms);
}
static int jpc_cod_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in)
{
jpc_cod_t *cod = &ms->parms.cod;
if (jpc_getuint8(in, &cod->csty)) {
return -1;
}
if (jpc_getuint8(in, &cod->prg) ||
jpc_getuint16(in, &cod->numlyrs) ||
jpc_getuint8(in, &cod->mctrans)) {
return -1;
}
if (cod->numlyrs < 1) {
return -1;
}
if (jpc_cox_getcompparms(ms, cstate, in,
(cod->csty & JPC_COX_PRT) != 0, &cod->compparms)) {
return -1;
}
if (jas_stream_eof(in)) {
jpc_cod_destroyparms(ms);
return -1;
}
return 0;
}
static int jpc_cod_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out)
{
jpc_cod_t *cod = &ms->parms.cod;
assert(cod->numlyrs > 0 && cod->compparms.numdlvls <= 32);
assert(cod->compparms.numdlvls == cod->compparms.numrlvls - 1);
if (jpc_putuint8(out, cod->compparms.csty) ||
jpc_putuint8(out, cod->prg) ||
jpc_putuint16(out, cod->numlyrs) ||
jpc_putuint8(out, cod->mctrans)) {
return -1;
}
if (jpc_cox_putcompparms(ms, cstate, out,
(cod->csty & JPC_COX_PRT) != 0, &cod->compparms)) {
return -1;
}
return 0;
}
/******************************************************************************\
* COC marker segment operations.
\******************************************************************************/
static void jpc_coc_destroyparms(jpc_ms_t *ms)
{
jpc_coc_t *coc = &ms->parms.coc;
jpc_cox_destroycompparms(&coc->compparms);
}
static int jpc_coc_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in)
{
jpc_coc_t *coc = &ms->parms.coc;
uint_fast8_t tmp;
if (cstate->numcomps <= 256) {
if (jpc_getuint8(in, &tmp)) {
return -1;
}
coc->compno = tmp;
} else {
if (jpc_getuint16(in, &coc->compno)) {
return -1;
}
}
if (jpc_getuint8(in, &coc->compparms.csty)) {
return -1;
}
if (jpc_cox_getcompparms(ms, cstate, in,
(coc->compparms.csty & JPC_COX_PRT) != 0, &coc->compparms)) {
return -1;
}
if (jas_stream_eof(in)) {
return -1;
}
return 0;
}
static int jpc_coc_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out)
{
jpc_coc_t *coc = &ms->parms.coc;
assert(coc->compparms.numdlvls <= 32);
if (cstate->numcomps <= 256) {
if (jpc_putuint8(out, coc->compno)) {
return -1;
}
} else {
if (jpc_putuint16(out, coc->compno)) {
return -1;
}
}
if (jpc_putuint8(out, coc->compparms.csty)) {
return -1;
}
if (jpc_cox_putcompparms(ms, cstate, out,
(coc->compparms.csty & JPC_COX_PRT) != 0, &coc->compparms)) {
return -1;
}
return 0;
}
/******************************************************************************\
* COD/COC marker segment operation helper functions.
\******************************************************************************/
static void jpc_cox_destroycompparms(jpc_coxcp_t *compparms)
{
/* Eliminate compiler warning about unused variables. */
USED(compparms);
}
static int jpc_cox_getcompparms(jpc_ms_t *ms, jpc_cstate_t *cstate,
jas_stream_t *in, int prtflag, jpc_coxcp_t *compparms)
{
uint_fast8_t tmp;
int i;
/* Eliminate compiler warning about unused variables. */
USED(ms);
USED(cstate);
if (jpc_getuint8(in, &compparms->numdlvls) ||
jpc_getuint8(in, &compparms->cblkwidthval) ||
jpc_getuint8(in, &compparms->cblkheightval) ||
jpc_getuint8(in, &compparms->cblksty) ||
jpc_getuint8(in, &compparms->qmfbid)) {
return -1;
}
if (compparms->numdlvls > 32) {
goto error;
}
if (compparms->qmfbid != JPC_COX_INS &&
compparms->qmfbid != JPC_COX_RFT)
goto error;
compparms->numrlvls = compparms->numdlvls + 1;
if (compparms->numrlvls > JPC_MAXRLVLS) {
goto error;
}
if (prtflag) {
for (i = 0; i < compparms->numrlvls; ++i) {
if (jpc_getuint8(in, &tmp)) {
goto error;
}
compparms->rlvls[i].parwidthval = tmp & 0xf;
compparms->rlvls[i].parheightval = (tmp >> 4) & 0xf;
}
/* Sigh.
This bit should be in the same field in both COC and COD mrk segs. */
compparms->csty |= JPC_COX_PRT;
}
if (jas_stream_eof(in)) {
goto error;
}
return 0;
error:
jpc_cox_destroycompparms(compparms);
return -1;
}
static int jpc_cox_putcompparms(jpc_ms_t *ms, jpc_cstate_t *cstate,
jas_stream_t *out, int prtflag, jpc_coxcp_t *compparms)
{
int i;
assert(compparms->numdlvls <= 32);
/* Eliminate compiler warning about unused variables. */
USED(ms);
USED(cstate);
if (jpc_putuint8(out, compparms->numdlvls) ||
jpc_putuint8(out, compparms->cblkwidthval) ||
jpc_putuint8(out, compparms->cblkheightval) ||
jpc_putuint8(out, compparms->cblksty) ||
jpc_putuint8(out, compparms->qmfbid)) {
return -1;
}
if (prtflag) {
for (i = 0; i < compparms->numrlvls; ++i) {
if (jpc_putuint8(out,
((compparms->rlvls[i].parheightval & 0xf) << 4) |
(compparms->rlvls[i].parwidthval & 0xf))) {
return -1;
}
}
}
return 0;
}
/******************************************************************************\
* RGN marker segment operations.
\******************************************************************************/
static int jpc_rgn_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in)
{
jpc_rgn_t *rgn = &ms->parms.rgn;
uint_fast8_t tmp;
if (cstate->numcomps <= 256) {
if (jpc_getuint8(in, &tmp)) {
return -1;
}
rgn->compno = tmp;
} else {
if (jpc_getuint16(in, &rgn->compno)) {
return -1;
}
}
if (jpc_getuint8(in, &rgn->roisty) ||
jpc_getuint8(in, &rgn->roishift)) {
return -1;
}
return 0;
}
static int jpc_rgn_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out)
{
jpc_rgn_t *rgn = &ms->parms.rgn;
if (cstate->numcomps <= 256) {
if (jpc_putuint8(out, rgn->compno)) {
return -1;
}
} else {
if (jpc_putuint16(out, rgn->compno)) {
return -1;
}
}
if (jpc_putuint8(out, rgn->roisty) ||
jpc_putuint8(out, rgn->roishift)) {
return -1;
}
return 0;
}
/******************************************************************************\
* QCD marker segment operations.
\******************************************************************************/
static void jpc_qcd_destroyparms(jpc_ms_t *ms)
{
jpc_qcd_t *qcd = &ms->parms.qcd;
jpc_qcx_destroycompparms(&qcd->compparms);
}
static int jpc_qcd_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in)
{
jpc_qcxcp_t *compparms = &ms->parms.qcd.compparms;
return jpc_qcx_getcompparms(compparms, cstate, in, ms->len);
}
static int jpc_qcd_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out)
{
jpc_qcxcp_t *compparms = &ms->parms.qcd.compparms;
return jpc_qcx_putcompparms(compparms, cstate, out);
}
/******************************************************************************\
* QCC marker segment operations.
\******************************************************************************/
static void jpc_qcc_destroyparms(jpc_ms_t *ms)
{
jpc_qcc_t *qcc = &ms->parms.qcc;
jpc_qcx_destroycompparms(&qcc->compparms);
}
static int jpc_qcc_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in)
{
jpc_qcc_t *qcc = &ms->parms.qcc;
uint_fast8_t tmp;
int len;
len = ms->len;
if (cstate->numcomps <= 256) {
if (jpc_getuint8(in, &tmp)) {
return -1;
}
qcc->compno = tmp;
--len;
} else {
if (jpc_getuint16(in, &qcc->compno)) {
return -1;
}
len -= 2;
}
if (jpc_qcx_getcompparms(&qcc->compparms, cstate, in, len)) {
return -1;
}
if (jas_stream_eof(in)) {
jpc_qcc_destroyparms(ms);
return -1;
}
return 0;
}
static int jpc_qcc_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out)
{
jpc_qcc_t *qcc = &ms->parms.qcc;
if (cstate->numcomps <= 256) {
if (jpc_putuint8(out, qcc->compno)) {
return -1;
}
} else {
if (jpc_putuint16(out, qcc->compno)) {
return -1;
}
}
if (jpc_qcx_putcompparms(&qcc->compparms, cstate, out)) {
return -1;
}
return 0;
}
/******************************************************************************\
* QCD/QCC marker segment helper functions.
\******************************************************************************/
static void jpc_qcx_destroycompparms(jpc_qcxcp_t *compparms)
{
if (compparms->stepsizes) {
jas_free(compparms->stepsizes);
}
}
static int jpc_qcx_getcompparms(jpc_qcxcp_t *compparms, jpc_cstate_t *cstate,
jas_stream_t *in, uint_fast16_t len)
{
uint_fast8_t tmp;
int n;
int i;
/* Eliminate compiler warning about unused variables. */
(void)cstate;
n = 0;
if (jpc_getuint8(in, &tmp)) {
return -1;
}
++n;
compparms->qntsty = tmp & 0x1f;
compparms->numguard = (tmp >> 5) & 7;
switch (compparms->qntsty) {
case JPC_QCX_SIQNT:
compparms->numstepsizes = 1;
break;
case JPC_QCX_NOQNT:
compparms->numstepsizes = (len - n);
break;
case JPC_QCX_SEQNT:
/* XXX - this is a hack */
compparms->numstepsizes = (len - n) / 2;
break;
}
/* Ensure that the step size array is sufficiently large. */
if (compparms->numstepsizes > 3 * JPC_MAXRLVLS + 1) {
jpc_qcx_destroycompparms(compparms);
return -1;
}
if (compparms->numstepsizes > 0) {
if (!(compparms->stepsizes = jas_alloc2(compparms->numstepsizes,
sizeof(uint_fast16_t)))) {
jpc_qcx_destroycompparms(compparms);
return -1;
}
for (i = 0; i < compparms->numstepsizes; ++i) {
if (compparms->qntsty == JPC_QCX_NOQNT) {
if (jpc_getuint8(in, &tmp)) {
jpc_qcx_destroycompparms(compparms);
return -1;
}
compparms->stepsizes[i] = JPC_QCX_EXPN(tmp >> 3);
} else {
if (jpc_getuint16(in, &compparms->stepsizes[i])) {
jpc_qcx_destroycompparms(compparms);
return -1;
}
}
}
} else {
compparms->stepsizes = 0;
}
if (jas_stream_error(in) || jas_stream_eof(in)) {
jpc_qcx_destroycompparms(compparms);
return -1;
}
return 0;
}
static int jpc_qcx_putcompparms(jpc_qcxcp_t *compparms, jpc_cstate_t *cstate,
jas_stream_t *out)
{
int i;
/* Eliminate compiler warning about unused variables. */
(void)cstate;
if (jpc_putuint8(out, ((compparms->numguard & 7) << 5) | compparms->qntsty)) {
return -1;
}
for (i = 0; i < compparms->numstepsizes; ++i) {
if (compparms->qntsty == JPC_QCX_NOQNT) {
if (jpc_putuint8(out, JPC_QCX_GETEXPN(
compparms->stepsizes[i]) << 3)) {
return -1;
}
} else {
if (jpc_putuint16(out, compparms->stepsizes[i])) {
return -1;
}
}
}
return 0;
}
/******************************************************************************\
* SOP marker segment operations.
\******************************************************************************/
static int jpc_sop_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in)
{
jpc_sop_t *sop = &ms->parms.sop;
/* Eliminate compiler warning about unused variable. */
(void)cstate;
if (jpc_getuint16(in, &sop->seqno)) {
return -1;
}
return 0;
}
static int jpc_sop_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out)
{
jpc_sop_t *sop = &ms->parms.sop;
/* Eliminate compiler warning about unused variable. */
(void)cstate;
if (jpc_putuint16(out, sop->seqno)) {
return -1;
}
return 0;
}
/******************************************************************************\
* PPM marker segment operations.
\******************************************************************************/
static void jpc_ppm_destroyparms(jpc_ms_t *ms)
{
jpc_ppm_t *ppm = &ms->parms.ppm;
if (ppm->data) {
jas_free(ppm->data);
}
}
static int jpc_ppm_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in)
{
jpc_ppm_t *ppm = &ms->parms.ppm;
/* Eliminate compiler warning about unused variables. */
(void)cstate;
ppm->data = 0;
if (ms->len < 1) {
goto error;
}
if (jpc_getuint8(in, &ppm->ind)) {
goto error;
}
ppm->len = ms->len - 1;
if (ppm->len > 0) {
if (!(ppm->data = jas_malloc(ppm->len))) {
goto error;
}
if (JAS_CAST(jas_uint, jas_stream_read(in, ppm->data, ppm->len)) != ppm->len) {
goto error;
}
} else {
ppm->data = 0;
}
return 0;
error:
jpc_ppm_destroyparms(ms);
return -1;
}
static int jpc_ppm_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out)
{
jpc_ppm_t *ppm = &ms->parms.ppm;
/* Eliminate compiler warning about unused variables. */
(void)cstate;
if (JAS_CAST(jas_uint, jas_stream_write(out, (char *) ppm->data, ppm->len)) != ppm->len) {
return -1;
}
return 0;
}
/******************************************************************************\
* PPT marker segment operations.
\******************************************************************************/
static void jpc_ppt_destroyparms(jpc_ms_t *ms)
{
jpc_ppt_t *ppt = &ms->parms.ppt;
if (ppt->data) {
jas_free(ppt->data);
}
}
static int jpc_ppt_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in)
{
jpc_ppt_t *ppt = &ms->parms.ppt;
/* Eliminate compiler warning about unused variables. */
(void)cstate;
ppt->data = 0;
if (ms->len < 1) {
goto error;
}
if (jpc_getuint8(in, &ppt->ind)) {
goto error;
}
ppt->len = ms->len - 1;
if (ppt->len > 0) {
if (!(ppt->data = jas_malloc(ppt->len))) {
goto error;
}
if (jas_stream_read(in, (char *) ppt->data, ppt->len) != ppt->len) {
goto error;
}
} else {
ppt->data = 0;
}
return 0;
error:
jpc_ppt_destroyparms(ms);
return -1;
}
static int jpc_ppt_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out)
{
jpc_ppt_t *ppt = &ms->parms.ppt;
/* Eliminate compiler warning about unused variable. */
(void)cstate;
if (jpc_putuint8(out, ppt->ind)) {
return -1;
}
if (jas_stream_write(out, (char *) ppt->data, ppt->len) != ppt->len) {
return -1;
}
return 0;
}
/******************************************************************************\
* POC marker segment operations.
\******************************************************************************/
static void jpc_poc_destroyparms(jpc_ms_t *ms)
{
jpc_poc_t *poc = &ms->parms.poc;
if (poc->pchgs) {
jas_free(poc->pchgs);
}
}
static int jpc_poc_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in)
{
jpc_poc_t *poc = &ms->parms.poc;
jpc_pocpchg_t *pchg;
int pchgno;
uint_fast8_t tmp;
poc->numpchgs = (cstate->numcomps > 256) ? (ms->len / 9) :
(ms->len / 7);
if (!(poc->pchgs = jas_alloc2(poc->numpchgs, sizeof(jpc_pocpchg_t)))) {
goto error;
}
for (pchgno = 0, pchg = poc->pchgs; pchgno < poc->numpchgs; ++pchgno,
++pchg) {
if (jpc_getuint8(in, &pchg->rlvlnostart)) {
goto error;
}
if (cstate->numcomps > 256) {
if (jpc_getuint16(in, &pchg->compnostart)) {
goto error;
}
} else {
if (jpc_getuint8(in, &tmp)) {
goto error;
};
pchg->compnostart = tmp;
}
if (jpc_getuint16(in, &pchg->lyrnoend) ||
jpc_getuint8(in, &pchg->rlvlnoend)) {
goto error;
}
if (cstate->numcomps > 256) {
if (jpc_getuint16(in, &pchg->compnoend)) {
goto error;
}
} else {
if (jpc_getuint8(in, &tmp)) {
goto error;
}
pchg->compnoend = tmp;
}
if (jpc_getuint8(in, &pchg->prgord)) {
goto error;
}
if (pchg->rlvlnostart > pchg->rlvlnoend ||
pchg->compnostart > pchg->compnoend) {
goto error;
}
}
return 0;
error:
jpc_poc_destroyparms(ms);
return -1;
}
static int jpc_poc_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out)
{
jpc_poc_t *poc = &ms->parms.poc;
jpc_pocpchg_t *pchg;
int pchgno;
for (pchgno = 0, pchg = poc->pchgs; pchgno < poc->numpchgs; ++pchgno,
++pchg) {
if (jpc_putuint8(out, pchg->rlvlnostart) ||
((cstate->numcomps > 256) ?
jpc_putuint16(out, pchg->compnostart) :
jpc_putuint8(out, pchg->compnostart)) ||
jpc_putuint16(out, pchg->lyrnoend) ||
jpc_putuint8(out, pchg->rlvlnoend) ||
((cstate->numcomps > 256) ?
jpc_putuint16(out, pchg->compnoend) :
jpc_putuint8(out, pchg->compnoend)) ||
jpc_putuint8(out, pchg->prgord)) {
return -1;
}
}
return 0;
}
/******************************************************************************\
* CRG marker segment operations.
\******************************************************************************/
static void jpc_crg_destroyparms(jpc_ms_t *ms)
{
jpc_crg_t *crg = &ms->parms.crg;
if (crg->comps) {
jas_free(crg->comps);
}
}
static int jpc_crg_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in)
{
jpc_crg_t *crg = &ms->parms.crg;
jpc_crgcomp_t *comp;
uint_fast16_t compno;
crg->numcomps = cstate->numcomps;
if (!(crg->comps = jas_alloc2(cstate->numcomps, sizeof(jpc_crgcomp_t)))) {
return -1;
}
for (compno = 0, comp = crg->comps; compno < cstate->numcomps;
++compno, ++comp) {
if (jpc_getuint16(in, &comp->hoff) ||
jpc_getuint16(in, &comp->voff)) {
jpc_crg_destroyparms(ms);
return -1;
}
}
return 0;
}
static int jpc_crg_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out)
{
jpc_crg_t *crg = &ms->parms.crg;
int compno;
jpc_crgcomp_t *comp;
/* Eliminate compiler warning about unused variables. */
(void)cstate;
for (compno = 0, comp = crg->comps; compno < crg->numcomps; ++compno,
++comp) {
if (jpc_putuint16(out, comp->hoff) ||
jpc_putuint16(out, comp->voff)) {
return -1;
}
}
return 0;
}
/******************************************************************************\
* Operations for COM marker segment.
\******************************************************************************/
static void jpc_com_destroyparms(jpc_ms_t *ms)
{
jpc_com_t *com = &ms->parms.com;
if (com->data) {
jas_free(com->data);
}
}
static int jpc_com_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in)
{
jpc_com_t *com = &ms->parms.com;
/* Eliminate compiler warning about unused variables. */
(void)cstate;
if (jpc_getuint16(in, &com->regid)) {
return -1;
}
com->len = ms->len - 2;
if (com->len > 0) {
if (!(com->data = jas_malloc(com->len))) {
return -1;
}
if (jas_stream_read(in, com->data, com->len) != com->len) {
return -1;
}
} else {
com->data = 0;
}
return 0;
}
static int jpc_com_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out)
{
jpc_com_t *com = &ms->parms.com;
/* Eliminate compiler warning about unused variables. */
(void)cstate;
if (jpc_putuint16(out, com->regid)) {
return -1;
}
if (jas_stream_write(out, com->data, com->len) != com->len) {
return -1;
}
return 0;
}
/******************************************************************************\
* Operations for unknown types of marker segments.
\******************************************************************************/
static void jpc_unk_destroyparms(jpc_ms_t *ms)
{
jpc_unk_t *unk = &ms->parms.unk;
if (unk->data) {
jas_free(unk->data);
}
}
static int jpc_unk_getparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *in)
{
jpc_unk_t *unk = &ms->parms.unk;
unk->data = 0;
/* Eliminate compiler warning about unused variables. */
(void)cstate;
if (ms->len > 0) {
if (!(unk->data = jas_alloc2(ms->len, sizeof(unsigned char)))) {
return -1;
}
if (jas_stream_read(in, (char *) unk->data, ms->len) != ms->len) {
jas_free(unk->data);
return -1;
}
unk->len = ms->len;
} else {
unk->data = 0;
unk->len = 0;
}
return 0;
}
static int jpc_unk_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out)
{
/* Eliminate compiler warning about unused variables. */
USED(cstate);
USED(ms);
USED(out);
/* If this function is called, we are trying to write an unsupported
type of marker segment. Return with an error indication. */
return -1;
}
/******************************************************************************\
* Primitive I/O operations.
\******************************************************************************/
int jpc_getuint8(jas_stream_t *in, uint_fast8_t *val)
{
int c;
if ((c = jas_stream_getc(in)) == EOF) {
return -1;
}
if (val) {
*val = c;
}
return 0;
}
int jpc_putuint8(jas_stream_t *out, uint_fast8_t val)
{
if (jas_stream_putc(out, val & 0xff) == EOF) {
return -1;
}
return 0;
}
int jpc_getuint16(jas_stream_t *in, uint_fast16_t *val)
{
jas_uchar buffer[2];
if (jas_stream_read(in, buffer, sizeof(buffer)) != sizeof(buffer))
return -1;
*val = (uint_fast16_t)buffer[0] << 8 | (uint_fast16_t)buffer[1];
return 0;
}
int jpc_putuint16(jas_stream_t *out, uint_fast16_t val)
{
if (jas_stream_putc(out, (val >> 8) & 0xff) == EOF ||
jas_stream_putc(out, val & 0xff) == EOF) {
return -1;
}
return 0;
}
int jpc_getuint32(jas_stream_t *in, uint_fast32_t *val)
{
jas_uchar buffer[4];
if (jas_stream_read(in, buffer, sizeof(buffer)) != sizeof(buffer))
return -1;
*val = (uint_fast32_t)buffer[0] << 24 | (uint_fast32_t)buffer[1] << 16
| (uint_fast32_t)buffer[2] << 8 | (uint_fast32_t)buffer[3];
return 0;
}
int jpc_putuint32(jas_stream_t *out, uint_fast32_t val)
{
if (jas_stream_putc(out, (val >> 24) & 0xff) == EOF ||
jas_stream_putc(out, (val >> 16) & 0xff) == EOF ||
jas_stream_putc(out, (val >> 8) & 0xff) == EOF ||
jas_stream_putc(out, val & 0xff) == EOF) {
return -1;
}
return 0;
}
/******************************************************************************\
* Miscellany
\******************************************************************************/
static const jpc_mstabent_t *jpc_mstab_lookup(int id)
{
const jpc_mstabent_t *mstabent;
for (mstabent = jpc_mstab;; ++mstabent) {
if (mstabent->id == id || mstabent->id < 0) {
return mstabent;
}
}
}
int jpc_validate(jas_stream_t *in)
{
unsigned char buf[2];
assert(JAS_STREAM_MAXPUTBACK >= 2);
if (jas_stream_peek(in, buf, sizeof(buf)) != sizeof(buf))
return -1;
if (buf[0] == (JPC_MS_SOC >> 8) && buf[1] == (JPC_MS_SOC & 0xff)) {
return 0;
}
return -1;
}
int jpc_getdata(jas_stream_t *in, jas_stream_t *out, long len)
{
return jas_stream_copy(out, in, len);
}
int jpc_putdata(jas_stream_t *out, jas_stream_t *in, long len)
{
return jas_stream_copy(out, in, len);
}