void jpc_tagtree_destroy(jpc_tagtree_t *tree)
{
if (tree->nodes_) {
jas_free(tree->nodes_);
}
jas_free(tree);
}
static void jp2_dec_destroy(jp2_dec_t *dec)
{
if (dec->ihdr) {
jp2_box_destroy(dec->ihdr);
}
if (dec->bpcc) {
jp2_box_destroy(dec->bpcc);
}
if (dec->cdef) {
jp2_box_destroy(dec->cdef);
}
if (dec->pclr) {
jp2_box_destroy(dec->pclr);
}
if (dec->image) {
jas_image_destroy(dec->image);
}
if (dec->cmap) {
jp2_box_destroy(dec->cmap);
}
if (dec->colr) {
jp2_box_destroy(dec->colr);
}
if (dec->chantocmptlut) {
jas_free(dec->chantocmptlut);
}
jas_free(dec);
}
void jpc_mqenc_destroy(jpc_mqenc_t *mqenc)
{
if (mqenc->ctxs) {
jas_free(mqenc->ctxs);
}
jas_free(mqenc);
}
void jas_tvparser_destroy(jas_tvparser_t *tvp)
{
if (tvp->buf) {
jas_free(tvp->buf);
}
jas_free(tvp);
}
void bmp_info_destroy(bmp_info_t *info)
{
if (info->palents) {
jas_free(info->palents);
}
jas_free(info);
}
static void jas_cmpxformseq_destroy(jas_cmpxformseq_t *pxformseq)
{
while (pxformseq->numpxforms > 0)
jas_cmpxformseq_delete(pxformseq, pxformseq->numpxforms - 1);
if (pxformseq->pxforms)
jas_free(pxformseq->pxforms);
jas_free(pxformseq);
}
static void jas_stream_destroy(jas_stream_t *stream)
{
/* If the memory for the buffer was allocated with malloc, free
this memory. */
if ((stream->bufmode_ & JAS_STREAM_FREEBUF) && stream->bufbase_) {
jas_free(stream->bufbase_);
stream->bufbase_ = 0;
}
jas_free(stream);
}
void jpc_tsfb_destroy(jpc_tsfb_t *tsfb)
{
if (tsfb->root) {
jpc_tsfbnode_destroy(tsfb->root);
}
jas_free(tsfb);
}
/* 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);
}
static void jpc_siz_destroyparms(jpc_ms_t *ms)
{
jpc_siz_t *siz = &ms->parms.siz;
if (siz->comps) {
jas_free(siz->comps);
}
}
static void jas_cmpxform_destroy(jas_cmpxform_t *pxform)
{
if (--pxform->refcnt <= 0) {
(*pxform->ops->destroy)(pxform);
jas_free(pxform);
}
}
static void jas_cmshapmatlut_cleanup(jas_cmshapmatlut_t *lut)
{
if (lut->data) {
jas_free(lut->data);
lut->data = 0;
}
lut->size = 0;
}
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;
/* Eliminate compiler warning about unused variables. */
cstate = 0;
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)) {
return -1;
}
if (!siz->width || !siz->height || !siz->tilewidth ||
!siz->tileheight || !siz->numcomps) {
return -1;
}
if (!(siz->comps = jas_malloc(siz->numcomps * sizeof(jpc_sizcomp_t)))) {
return -1;
}
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)) {
jas_free(siz->comps);
return -1;
}
siz->comps[i].sgnd = (tmp >> 7) & 1;
siz->comps[i].prec = (tmp & 0x7f) + 1;
}
if (jas_stream_eof(in)) {
jas_free(siz->comps);
return -1;
}
return 0;
}
void jas_cmprof_destroy(jas_cmprof_t *prof)
{
int i;
for (i = 0; i < JAS_CMPROF_NUMPXFORMSEQS; ++i) {
if (prof->pxformseqs[i]) {
jas_cmpxformseq_destroy(prof->pxformseqs[i]);
prof->pxformseqs[i] = 0;
}
}
if (prof->iccprof)
jas_iccprof_destroy(prof->iccprof);
jas_free(prof);
}
static void jpc_tsfbnode_destroy(jpc_tsfbnode_t *node)
{
jpc_tsfbnode_t **child;
int childno;
for (childno = 0, child = node->children; childno < node->maxchildren;
++childno, ++child) {
if (*child) {
jpc_tsfbnode_destroy(*child);
}
}
if (node->hqmfb) {
jpc_qmfb1d_destroy(node->hqmfb);
}
if (node->vqmfb) {
jpc_qmfb1d_destroy(node->vqmfb);
}
jas_free(node);
}
jas_image_t *jp2_decode(jas_stream_t *in, char *optstr)
{
jp2_box_t *box;
int found;
jas_image_t *image;
jp2_dec_t *dec;
bool samedtype;
int dtype;
unsigned int i;
jp2_cmap_t *cmapd;
jp2_pclr_t *pclrd;
jp2_cdef_t *cdefd;
unsigned int channo;
int newcmptno;
int_fast32_t *lutents;
#if 0
jp2_cdefchan_t *cdefent;
int cmptno;
#endif
jp2_cmapent_t *cmapent;
jas_icchdr_t icchdr;
jas_iccprof_t *iccprof;
dec = 0;
box = 0;
image = 0;
if (!(dec = jp2_dec_create())) {
goto error;
}
/* Get the first box. This should be a JP box. */
if (!(box = jp2_box_get(in))) {
jas_eprintf("error: cannot get box\n");
goto error;
}
if (box->type != JP2_BOX_JP) {
jas_eprintf("error: expecting signature box\n");
goto error;
}
if (box->data.jp.magic != JP2_JP_MAGIC) {
jas_eprintf("incorrect magic number\n");
goto error;
}
jp2_box_destroy(box);
box = 0;
/* Get the second box. This should be a FTYP box. */
if (!(box = jp2_box_get(in))) {
goto error;
}
if (box->type != JP2_BOX_FTYP) {
jas_eprintf("expecting file type box\n");
goto error;
}
jp2_box_destroy(box);
box = 0;
/* Get more boxes... */
found = 0;
while ((box = jp2_box_get(in))) {
if (jas_getdbglevel() >= 1) {
jas_eprintf("box type %s\n", box->info->name);
}
switch (box->type) {
case JP2_BOX_JP2C:
found = 1;
break;
case JP2_BOX_IHDR:
if (!dec->ihdr) {
dec->ihdr = box;
box = 0;
}
break;
case JP2_BOX_BPCC:
if (!dec->bpcc) {
dec->bpcc = box;
box = 0;
}
break;
case JP2_BOX_CDEF:
if (!dec->cdef) {
dec->cdef = box;
box = 0;
}
break;
case JP2_BOX_PCLR:
if (!dec->pclr) {
dec->pclr = box;
box = 0;
}
break;
case JP2_BOX_CMAP:
if (!dec->cmap) {
dec->cmap = box;
box = 0;
}
break;
case JP2_BOX_COLR:
if (!dec->colr) {
dec->colr = box;
box = 0;
}
break;
}
if (box) {
jp2_box_destroy(box);
box = 0;
}
if (found) {
break;
}
}
if (!found) {
jas_eprintf("error: no code stream found\n");
goto error;
}
if (!(dec->image = jpc_decode(in, optstr))) {
jas_eprintf("error: cannot decode code stream\n");
goto error;
}
/* An IHDR box must be present. */
if (!dec->ihdr) {
jas_eprintf("error: missing IHDR box\n");
goto error;
}
/* Does the number of components indicated in the IHDR box match
the value specified in the code stream? */
if (dec->ihdr->data.ihdr.numcmpts != JAS_CAST(uint, jas_image_numcmpts(dec->image))) {
jas_eprintf("warning: number of components mismatch\n");
}
/* At least one component must be present. */
if (!jas_image_numcmpts(dec->image)) {
jas_eprintf("error: no components\n");
goto error;
}
/* Determine if all components have the same data type. */
samedtype = true;
dtype = jas_image_cmptdtype(dec->image, 0);
for (i = 1; i < JAS_CAST(uint, jas_image_numcmpts(dec->image)); ++i) {
if (jas_image_cmptdtype(dec->image, i) != dtype) {
samedtype = false;
break;
}
}
/* Is the component data type indicated in the IHDR box consistent
with the data in the code stream? */
if ((samedtype && dec->ihdr->data.ihdr.bpc != JP2_DTYPETOBPC(dtype)) ||
(!samedtype && dec->ihdr->data.ihdr.bpc != JP2_IHDR_BPCNULL)) {
jas_eprintf("warning: component data type mismatch\n");
}
/* Is the compression type supported? */
if (dec->ihdr->data.ihdr.comptype != JP2_IHDR_COMPTYPE) {
jas_eprintf("error: unsupported compression type\n");
goto error;
}
if (dec->bpcc) {
/* Is the number of components indicated in the BPCC box
consistent with the code stream data? */
if (dec->bpcc->data.bpcc.numcmpts != JAS_CAST(uint, jas_image_numcmpts(
dec->image))) {
jas_eprintf("warning: number of components mismatch\n");
}
/* Is the component data type information indicated in the BPCC
box consistent with the code stream data? */
if (!samedtype) {
for (i = 0; i < JAS_CAST(uint, jas_image_numcmpts(dec->image)); ++i) {
if (jas_image_cmptdtype(dec->image, i) != JP2_BPCTODTYPE(dec->bpcc->data.bpcc.bpcs[i])) {
jas_eprintf("warning: component data type mismatch\n");
}
}
} else {
jas_eprintf("warning: superfluous BPCC box\n");
}
}
/* A COLR box must be present. */
if (!dec->colr) {
jas_eprintf("error: no COLR box\n");
goto error;
}
switch (dec->colr->data.colr.method) {
case JP2_COLR_ENUM:
jas_image_setclrspc(dec->image, jp2_getcs(&dec->colr->data.colr));
break;
case JP2_COLR_ICC:
iccprof = jas_iccprof_createfrombuf(dec->colr->data.colr.iccp,
dec->colr->data.colr.iccplen);
assert(iccprof);
jas_iccprof_gethdr(iccprof, &icchdr);
jas_eprintf("ICC Profile CS %08x\n", icchdr.colorspc);
jas_image_setclrspc(dec->image, fromiccpcs(icchdr.colorspc));
dec->image->cmprof_ = jas_cmprof_createfromiccprof(iccprof);
assert(dec->image->cmprof_);
jas_iccprof_destroy(iccprof);
break;
}
/* If a CMAP box is present, a PCLR box must also be present. */
if (dec->cmap && !dec->pclr) {
jas_eprintf("warning: missing PCLR box or superfluous CMAP box\n");
jp2_box_destroy(dec->cmap);
dec->cmap = 0;
}
/* If a CMAP box is not present, a PCLR box must not be present. */
if (!dec->cmap && dec->pclr) {
jas_eprintf("warning: missing CMAP box or superfluous PCLR box\n");
jp2_box_destroy(dec->pclr);
dec->pclr = 0;
}
/* Determine the number of channels (which is essentially the number
of components after any palette mappings have been applied). */
dec->numchans = dec->cmap ? dec->cmap->data.cmap.numchans : JAS_CAST(uint, jas_image_numcmpts(dec->image));
/* Perform a basic sanity check on the CMAP box if present. */
if (dec->cmap) {
for (i = 0; i < dec->numchans; ++i) {
/* Is the component number reasonable? */
if (dec->cmap->data.cmap.ents[i].cmptno >= JAS_CAST(uint, jas_image_numcmpts(dec->image))) {
jas_eprintf("error: invalid component number in CMAP box\n");
goto error;
}
/* Is the LUT index reasonable? */
if (dec->cmap->data.cmap.ents[i].pcol >= dec->pclr->data.pclr.numchans) {
jas_eprintf("error: invalid CMAP LUT index\n");
goto error;
}
}
}
/* Allocate space for the channel-number to component-number LUT. */
if (!(dec->chantocmptlut = jas_malloc(dec->numchans * sizeof(uint_fast16_t)))) {
jas_eprintf("error: no memory\n");
goto error;
}
if (!dec->cmap) {
for (i = 0; i < dec->numchans; ++i) {
dec->chantocmptlut[i] = i;
}
} else {
cmapd = &dec->cmap->data.cmap;
pclrd = &dec->pclr->data.pclr;
cdefd = &dec->cdef->data.cdef;
for (channo = 0; channo < cmapd->numchans; ++channo) {
cmapent = &cmapd->ents[channo];
if (cmapent->map == JP2_CMAP_DIRECT) {
dec->chantocmptlut[channo] = channo;
} else if (cmapent->map == JP2_CMAP_PALETTE) {
lutents = jas_malloc(pclrd->numlutents * sizeof(int_fast32_t));
for (i = 0; i < pclrd->numlutents; ++i) {
lutents[i] = pclrd->lutdata[cmapent->pcol + i * pclrd->numchans];
}
newcmptno = jas_image_numcmpts(dec->image);
jas_image_depalettize(dec->image, cmapent->cmptno, pclrd->numlutents, lutents, JP2_BPCTODTYPE(pclrd->bpc[cmapent->pcol]), newcmptno);
dec->chantocmptlut[channo] = newcmptno;
jas_free(lutents);
#if 0
if (dec->cdef) {
cdefent = jp2_cdef_lookup(cdefd, channo);
if (!cdefent) {
abort();
}
jas_image_setcmpttype(dec->image, newcmptno, jp2_getct(jas_image_clrspc(dec->image), cdefent->type, cdefent->assoc));
} else {
jas_image_setcmpttype(dec->image, newcmptno, jp2_getct(jas_image_clrspc(dec->image), 0, channo + 1));
}
#endif
}
}
}
/* Mark all components as being of unknown type. */
for (i = 0; i < JAS_CAST(uint, jas_image_numcmpts(dec->image)); ++i) {
jas_image_setcmpttype(dec->image, i, JAS_IMAGE_CT_UNKNOWN);
}
/* Determine the type of each component. */
if (dec->cdef) {
for (i = 0; i < dec->numchans; ++i) {
jas_image_setcmpttype(dec->image,
dec->chantocmptlut[dec->cdef->data.cdef.ents[i].channo],
jp2_getct(jas_image_clrspc(dec->image),
dec->cdef->data.cdef.ents[i].type, dec->cdef->data.cdef.ents[i].assoc));
}
} else {
for (i = 0; i < dec->numchans; ++i) {
jas_image_setcmpttype(dec->image, dec->chantocmptlut[i],
jp2_getct(jas_image_clrspc(dec->image), 0, i + 1));
}
}
/* Delete any components that are not of interest. */
for (i = jas_image_numcmpts(dec->image); i > 0; --i) {
if (jas_image_cmpttype(dec->image, i - 1) == JAS_IMAGE_CT_UNKNOWN) {
jas_image_delcmpt(dec->image, i - 1);
}
}
/* Ensure that some components survived. */
if (!jas_image_numcmpts(dec->image)) {
jas_eprintf("error: no components\n");
goto error;
}
#if 0
jas_eprintf("no of components is %d\n", jas_image_numcmpts(dec->image));
#endif
/* Prevent the image from being destroyed later. */
image = dec->image;
dec->image = 0;
jp2_dec_destroy(dec);
return image;
error:
if (box) {
jp2_box_destroy(box);
}
if (dec) {
jp2_dec_destroy(dec);
}
return 0;
}
/* Destroy a code stream state object. */
void jpc_cstate_destroy(jpc_cstate_t *cstate)
{
jas_free(cstate);
}
static int jas_cmshapmatlut_invert(jas_cmshapmatlut_t *invlut,
jas_cmshapmatlut_t *lut, int n)
{
int i;
int j;
int k;
jas_cmreal_t ax;
jas_cmreal_t ay;
jas_cmreal_t bx;
jas_cmreal_t by;
jas_cmreal_t sx;
jas_cmreal_t sy;
assert(n >= 2);
if (invlut->data) {
jas_free(invlut->data);
invlut->data = 0;
}
/* The sample values should be nondecreasing. */
for (i = 1; i < lut->size; ++i) {
if (lut->data[i - 1] > lut->data[i]) {
assert(0);
return -1;
}
}
if (!(invlut->data = jas_malloc(n * sizeof(jas_cmreal_t))))
return -1;
invlut->size = n;
for (i = 0; i < invlut->size; ++i) {
sy = ((double) i) / (invlut->size - 1);
sx = 1.0;
for (j = 0; j < lut->size; ++j) {
ay = lut->data[j];
if (sy == ay) {
for (k = j + 1; k < lut->size; ++k) {
by = lut->data[k];
if (by != sy)
break;
#if 0
assert(0);
#endif
}
if (k < lut->size) {
--k;
ax = ((double) j) / (lut->size - 1);
bx = ((double) k) / (lut->size - 1);
sx = (ax + bx) / 2.0;
}
break;
}
if (j < lut->size - 1) {
by = lut->data[j + 1];
if (sy > ay && sy < by) {
ax = ((double) j) / (lut->size - 1);
bx = ((double) j + 1) / (lut->size - 1);
sx = ax +
(sy - ay) / (by - ay) * (bx - ax);
break;
}
}
}
invlut->data[i] = sx;
}
#if 0
for (i=0;i<lut->size;++i)
jas_eprintf("lut[%d]=%f ", i, lut->data[i]);
for (i=0;i<invlut->size;++i)
jas_eprintf("invlut[%d]=%f ", i, invlut->data[i]);
#endif
return 0;
}
void jas_cmxform_destroy(jas_cmxform_t *xform)
{
if (xform->pxformseq)
jas_cmpxformseq_destroy(xform->pxformseq);
jas_free(xform);
}