static void
convertToJasperImage(struct pam * const inpamP,
jas_image_t ** const jasperPP) {
jas_image_t * jasperP;
createJasperImage(inpamP, &jasperP);
if (strncmp(inpamP->tuple_type, "RGB", 3) == 0) {
if (inpamP->depth < 3)
pm_error("Input tuple type is RGB*, but depth is only %d. "
"It should be at least 3.", inpamP->depth);
else {
jas_image_setclrspc(jasperP, JAS_CLRSPC_GENRGB);
jas_image_setcmpttype(jasperP, 0,
JAS_IMAGE_CT_COLOR(JAS_IMAGE_CT_RGB_R));
jas_image_setcmpttype(jasperP, 1,
JAS_IMAGE_CT_COLOR(JAS_IMAGE_CT_RGB_G));
jas_image_setcmpttype(jasperP, 2,
JAS_IMAGE_CT_COLOR(JAS_IMAGE_CT_RGB_B));
}
} else {
if (strncmp(inpamP->tuple_type, "GRAYSCALE", 9 == 0) ||
strncmp(inpamP->tuple_type, "BLACKANDWHITE", 13) == 0) {
jas_image_setclrspc(jasperP, JAS_CLRSPC_GENGRAY);
jas_image_setcmpttype(jasperP, 0,
JAS_IMAGE_CT_COLOR(JAS_IMAGE_CT_GRAY_Y));
}
}
createJasperRaster(inpamP, jasperP);
*jasperPP = jasperP;
}
jas_image_t *pnm_decode(jas_stream_t *in, char *opts)
{
pnm_hdr_t hdr;
jas_image_t *image;
jas_image_cmptparm_t cmptparms[3];
jas_image_cmptparm_t *cmptparm;
int i;
if (opts) {
jas_eprintf("warning: ignoring options\n");
}
/* Read the file header. */
if (pnm_gethdr(in, &hdr)) {
return 0;
}
/* Create an image of the correct size. */
for (i = 0, cmptparm = cmptparms; i < hdr.numcmpts; ++i, ++cmptparm) {
cmptparm->tlx = 0;
cmptparm->tly = 0;
cmptparm->hstep = 1;
cmptparm->vstep = 1;
cmptparm->width = hdr.width;
cmptparm->height = hdr.height;
cmptparm->prec = pnm_maxvaltodepth(hdr.maxval);
cmptparm->sgnd = hdr.sgnd;
}
if (!(image = jas_image_create(hdr.numcmpts, cmptparms, JAS_CLRSPC_UNKNOWN))) {
return 0;
}
if (hdr.numcmpts == 3) {
jas_image_setclrspc(image, JAS_CLRSPC_SRGB);
jas_image_setcmpttype(image, 0,
JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_R));
jas_image_setcmpttype(image, 1,
JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_G));
jas_image_setcmpttype(image, 2,
JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_B));
} else {
jas_image_setclrspc(image, JAS_CLRSPC_SGRAY);
jas_image_setcmpttype(image, 0,
JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_GRAY_Y));
}
/* Read image data from stream into image. */
if (pnm_getdata(in, &hdr, image)) {
jas_image_destroy(image);
return 0;
}
return image;
}
static jas_image_t *jpg_mkimage(j_decompress_ptr cinfo)
{
jas_image_t *image;
int cmptno;
jas_image_cmptparm_t cmptparm;
int numcmpts;
image = 0;
numcmpts = cinfo->output_components;
if (!(image = jas_image_create0())) {
goto error;
}
for (cmptno = 0; cmptno < numcmpts; ++cmptno) {
cmptparm.tlx = 0;
cmptparm.tly = 0;
cmptparm.hstep = 1;
cmptparm.vstep = 1;
cmptparm.width = cinfo->image_width;
cmptparm.height = cinfo->image_height;
cmptparm.prec = 8;
cmptparm.sgnd = false;
if (jas_image_addcmpt(image, cmptno, &cmptparm)) {
goto error;
}
}
if (numcmpts == 3) {
jas_image_setclrspc(image, JAS_CLRSPC_SRGB);
jas_image_setcmpttype(image, 0,
JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_R));
jas_image_setcmpttype(image, 1,
JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_G));
jas_image_setcmpttype(image, 2,
JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_B));
} else {
jas_image_setclrspc(image, JAS_CLRSPC_SGRAY);
jas_image_setcmpttype(image, 0,
JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_GRAY_Y));
}
return image;
error:
if (image) {
jas_image_destroy(image);
}
return 0;
}
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;
}
/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % W r i t e J P 2 I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % Method WriteJP2Image writes an image in the JPEG 2000 image format. % % JP2 support originally written by Nathan Brown, [email protected] % % The format of the WriteJP2Image method is: % % MagickPassFail WriteJP2Image(const ImageInfo *image_info,Image *image) % % A description of each parameter follows. % % o status: Method WriteJP2Image return MagickTrue if the image is written. % MagickFalse is returned is there is a memory shortage or if the image file % fails to write. % % o image_info: Specifies a pointer to a ImageInfo structure. % % o image: A pointer to an Image structure. % % */ static MagickPassFail WriteJP2Image(const ImageInfo *image_info,Image *image) { char magick[MaxTextExtent], option_keyval[MaxTextExtent], *options = NULL; int format; long y; jas_image_cmptparm_t component_info; jas_image_t *jp2_image; jas_matrix_t *jp2_pixels; jas_stream_t *jp2_stream; register const PixelPacket *p; register int x; unsigned int rate_specified=False, status; int component, number_components; unsigned short *lut; ImageCharacteristics characteristics; /* Open image file. */ assert(image_info != (const ImageInfo *) NULL); assert(image_info->signature == MagickSignature); assert(image != (Image *) NULL); assert(image->signature == MagickSignature); status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); if (status == False) ThrowWriterException(FileOpenError,UnableToOpenFile,image); /* Ensure that image is in RGB space. */ (void) TransformColorspace(image,RGBColorspace); /* Analyze image to be written. */ if (!GetImageCharacteristics(image,&characteristics, (OptimizeType == image_info->type), &image->exception)) { CloseBlob(image); return MagickFail; } /* Obtain a JP2 stream. */ jp2_stream=JP2StreamManager(image); if (jp2_stream == (jas_stream_t *) NULL) ThrowWriterException(DelegateError,UnableToManageJP2Stream,image); number_components=image->matte ? 4 : 3; if ((image_info->type != TrueColorType) && (characteristics.grayscale)) number_components=1; jp2_image=jas_image_create0(); if (jp2_image == (jas_image_t *) NULL) ThrowWriterException(DelegateError,UnableToCreateImage,image); for (component=0; component < number_components; component++) { (void) memset((void *)&component_info,0,sizeof(jas_image_cmptparm_t)); component_info.tlx=0; /* top left x ordinate */ component_info.tly=0; /* top left y ordinate */ component_info.hstep=1; /* horizontal pixels per step */ component_info.vstep=1; /* vertical pixels per step */ component_info.width=(unsigned int) image->columns; component_info.height=(unsigned int) image->rows; component_info.prec=(unsigned int) Max(2,Min(image->depth,16)); /* bits in range */ component_info.sgnd = false; /* range is signed value? */ if (jas_image_addcmpt(jp2_image, component,&component_info)) { jas_image_destroy(jp2_image); ThrowWriterException(DelegateError,UnableToCreateImageComponent,image); } } /* Allocate and compute LUT. */ { unsigned long i, max_value; double scale_to_component; lut=MagickAllocateArray(unsigned short *,MaxMap+1,sizeof(*lut)); if (lut == (unsigned short *) NULL) { jas_image_destroy(jp2_image); ThrowWriterException(ResourceLimitError,MemoryAllocationFailed,image); } max_value=MaxValueGivenBits(component_info.prec); scale_to_component=max_value/MaxRGBDouble; for(i=0; i <= MaxMap; i++) lut[i]=scale_to_component*i+0.5; } if (number_components == 1) { /* FIXME: If image has an attached ICC profile, then the profile should be transferred and the image colorspace set to JAS_CLRSPC_GENGRAY */ /* sRGB Grayscale */ (void) LogMagickEvent(CoderEvent,GetMagickModule(), "Setting SGRAY colorspace"); jas_image_setclrspc(jp2_image, JAS_CLRSPC_SGRAY); (void) LogMagickEvent(CoderEvent,GetMagickModule(), "Setting GRAY channel to channel 0"); jas_image_setcmpttype(jp2_image,0, JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_GRAY_Y)); } else { /* FIXME: If image has an attached ICC profile, then the profile should be transferred and the image colorspace set to JAS_CLRSPC_GENRGB */ /* sRGB */ (void) LogMagickEvent(CoderEvent,GetMagickModule(), "Setting SRGB colorspace"); jas_image_setclrspc(jp2_image, JAS_CLRSPC_SRGB); (void) LogMagickEvent(CoderEvent,GetMagickModule(), "Setting RED channel to channel 0"); jas_image_setcmpttype(jp2_image,0, JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_R)); (void) LogMagickEvent(CoderEvent,GetMagickModule(), "Setting GREEN channel to channel 1"); jas_image_setcmpttype(jp2_image,1, JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_G)); (void) LogMagickEvent(CoderEvent,GetMagickModule(), "Setting BLUE channel to channel 2"); jas_image_setcmpttype(jp2_image,2, JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_B)); if (number_components == 4 ) { (void) LogMagickEvent(CoderEvent,GetMagickModule(), "Setting OPACITY channel to channel 3"); jas_image_setcmpttype(jp2_image,3, JAS_IMAGE_CT_COLOR(JAS_IMAGE_CT_OPACITY)); } } /* Convert to JPEG 2000 pixels. */ jp2_pixels=jas_matrix_create(1,(unsigned int) image->columns); if (jp2_pixels == (jas_matrix_t *) NULL) { MagickFreeMemory(lut); jas_image_destroy(jp2_image); ThrowWriterException(ResourceLimitError,MemoryAllocationFailed,image); } for (y=0; y < (long) image->rows; y++) { p=AcquireImagePixels(image,0,y,image->columns,1,&image->exception); if (p == (const PixelPacket *) NULL) break; if (number_components == 1) { for (x=0; x < (long) image->columns; x++) jas_matrix_setv(jp2_pixels,x,lut[ScaleQuantumToMap(PixelIntensityToQuantum(&p[x]))]); (void) jas_image_writecmpt(jp2_image,0,0,(unsigned int) y, (unsigned int) image->columns,1,jp2_pixels); } else { for (x=0; x < (long) image->columns; x++) jas_matrix_setv(jp2_pixels,x,lut[ScaleQuantumToMap(p[x].red)]); (void) jas_image_writecmpt(jp2_image,0,0,(unsigned int) y, (unsigned int) image->columns,1,jp2_pixels); for (x=0; x < (long) image->columns; x++) jas_matrix_setv(jp2_pixels,x,lut[ScaleQuantumToMap(p[x].green)]); (void) jas_image_writecmpt(jp2_image,1,0,(unsigned int) y, (unsigned int) image->columns,1,jp2_pixels); for (x=0; x < (long) image->columns; x++) jas_matrix_setv(jp2_pixels,x,lut[ScaleQuantumToMap(p[x].blue)]); (void) jas_image_writecmpt(jp2_image,2,0,(unsigned int) y, (unsigned int) image->columns,1,jp2_pixels); if (number_components > 3) for (x=0; x < (long) image->columns; x++) jas_matrix_setv(jp2_pixels,x,lut[ScaleQuantumToMap(MaxRGB-p[x].opacity)]); (void) jas_image_writecmpt(jp2_image,3,0,(unsigned int) y, (unsigned int) image->columns,1,jp2_pixels); } if (image->previous == (Image *) NULL) if (QuantumTick(y,image->rows)) if (!MagickMonitorFormatted(y,image->rows,&image->exception, SaveImageText,image->filename, image->columns,image->rows)) break; } (void) strlcpy(magick,image_info->magick,MaxTextExtent); /* J2C is an alias for JPC but Jasper only supports "JPC". */ if (LocaleCompare(magick,"j2c") == 0) (void) strlcpy(magick,"jpc",sizeof(magick)); LocaleLower(magick); format=jas_image_strtofmt(magick); /* Support passing Jasper options. */ { const char **option_name; static const char *jasper_options[] = { "imgareatlx", "imgareatly", "tilegrdtlx", "tilegrdtly", "tilewidth", "tileheight", "prcwidth", "prcheight", "cblkwidth", "cblkheight", "mode", "ilyrrates", "prg", "nomct", "numrlvls", "sop", "eph", "lazy", "rate", "termall", "segsym", "vcausal", "pterm", "resetprob", "numgbits", NULL }; for (option_name = jasper_options; *option_name != NULL; option_name++) { const char *value; if ((value=AccessDefinition(image_info,"jp2",*option_name)) != NULL) { if(LocaleCompare(*option_name,"rate") == 0) rate_specified=True; FormatString(option_keyval,"%s=%.1024s ",*option_name,value); ConcatenateString(&options,option_keyval); } } } /* Provide an emulation of IJG JPEG "quality" by default. */ if (rate_specified == False) { double rate=1.0; /* A rough approximation to JPEG v1 quality using JPEG-2000. Default "quality" 75 results in a request for 16:1 compression, which results in image sizes approximating that of JPEG v1. */ if ((image_info->quality < 99.5) && (image->rows*image->columns > 2500)) { double header_size, current_size, target_size, d; d=115-image_info->quality; /* Best number is 110-115 */ rate=100.0/(d*d); header_size=550.0; /* Base file size. */ header_size+=(number_components-1)*142; /* Additional components */ /* FIXME: Need to account for any ICC profiles here */ current_size=(double)((image->rows*image->columns*image->depth)/8)* number_components; target_size=(current_size*rate)+header_size; rate=target_size/current_size; } FormatString(option_keyval,"%s=%g ","rate",rate); ConcatenateString(&options,option_keyval); (void) LogMagickEvent(CoderEvent,GetMagickModule(), "Compression rate: %g (%3.2f:1)",rate,1.0/rate); } if (options) (void) LogMagickEvent(CoderEvent,GetMagickModule(), "Jasper options: \"%s\"", options); (void) LogMagickEvent(CoderEvent,GetMagickModule(),"Encoding image"); status=jas_image_encode(jp2_image,jp2_stream,format,options); (void) jas_stream_close(jp2_stream); MagickFreeMemory(options); MagickFreeMemory(lut); jas_matrix_destroy(jp2_pixels); jas_image_destroy(jp2_image); if (status) ThrowWriterException(DelegateError,UnableToEncodeImageFile,image); return(True); }
static GstFlowReturn
gst_jasper_dec_negotiate (GstJasperDec * dec, jas_image_t * image)
{
GstFlowReturn flow_ret = GST_FLOW_OK;
gint width, height, channels;
gint i, j;
gboolean negotiate = FALSE;
jas_clrspc_t clrspc;
GstCaps *allowed_caps, *caps;
width = jas_image_width (image);
height = jas_image_height (image);
channels = jas_image_numcmpts (image);
GST_LOG_OBJECT (dec, "%d x %d, %d components", width, height, channels);
/* jp2c bitstream has no real colour space info (kept in container),
* so decoder may only pretend to know, where it really does not */
if (!jas_clrspc_isunknown (dec->clrspc)) {
clrspc = dec->clrspc;
GST_DEBUG_OBJECT (dec, "forcing container supplied colour space %d",
clrspc);
jas_image_setclrspc (image, clrspc);
} else
clrspc = jas_image_clrspc (image);
if (!width || !height || !channels || jas_clrspc_isunknown (clrspc))
goto fail_image;
if (dec->width != width || dec->height != height ||
dec->channels != channels || dec->clrspc != clrspc)
negotiate = TRUE;
if (channels != 3)
goto not_supported;
for (i = 0; i < channels; i++) {
gint cheight, cwidth, depth, sgnd;
cheight = jas_image_cmptheight (image, i);
cwidth = jas_image_cmptwidth (image, i);
depth = jas_image_cmptprec (image, i);
sgnd = jas_image_cmptsgnd (image, i);
GST_LOG_OBJECT (dec, "image component %d, %dx%d, depth %d, sgnd %d", i,
cwidth, cheight, depth, sgnd);
if (depth != 8 || sgnd)
goto not_supported;
if (dec->cheight[i] != cheight || dec->cwidth[i] != cwidth) {
dec->cheight[i] = cheight;
dec->cwidth[i] = cwidth;
negotiate = TRUE;
}
}
if (!negotiate && dec->format != GST_VIDEO_FORMAT_UNKNOWN)
goto done;
/* clear and refresh to new state */
flow_ret = GST_FLOW_NOT_NEGOTIATED;
dec->format = GST_VIDEO_FORMAT_UNKNOWN;
dec->width = width;
dec->height = height;
dec->channels = channels;
/* retrieve allowed caps, and find the first one that reasonably maps
* to the parameters of the colourspace */
caps = gst_pad_get_allowed_caps (dec->srcpad);
if (!caps) {
GST_DEBUG_OBJECT (dec, "... but no peer, using template caps");
/* need to copy because get_allowed_caps returns a ref,
and get_pad_template_caps doesn't */
caps = gst_caps_copy (gst_pad_get_pad_template_caps (dec->srcpad));
}
/* avoid lists of fourcc, etc */
allowed_caps = gst_caps_normalize (caps);
caps = NULL;
GST_LOG_OBJECT (dec, "allowed source caps %" GST_PTR_FORMAT, allowed_caps);
for (i = 0; i < gst_caps_get_size (allowed_caps); i++) {
GstVideoFormat format;
gboolean ok;
if (caps)
gst_caps_unref (caps);
caps = gst_caps_copy_nth (allowed_caps, i);
/* sigh, ds and _parse_caps need fixed caps for parsing, fixate */
gst_pad_fixate_caps (dec->srcpad, caps);
GST_LOG_OBJECT (dec, "checking caps %" GST_PTR_FORMAT, caps);
if (!gst_video_format_parse_caps (caps, &format, NULL, NULL))
continue;
if (gst_video_format_is_rgb (format) &&
jas_clrspc_fam (clrspc) == JAS_CLRSPC_FAM_RGB) {
GST_DEBUG_OBJECT (dec, "trying RGB");
if ((dec->cmpt[0] = jas_image_getcmptbytype (image,
JAS_IMAGE_CT_COLOR (JAS_CLRSPC_CHANIND_RGB_R))) < 0 ||
(dec->cmpt[1] = jas_image_getcmptbytype (image,
JAS_IMAGE_CT_COLOR (JAS_CLRSPC_CHANIND_RGB_G))) < 0 ||
(dec->cmpt[2] = jas_image_getcmptbytype (image,
JAS_IMAGE_CT_COLOR (JAS_CLRSPC_CHANIND_RGB_B))) < 0) {
GST_DEBUG_OBJECT (dec, "missing RGB color component");
continue;
}
} else if (gst_video_format_is_yuv (format) &&
jas_clrspc_fam (clrspc) == JAS_CLRSPC_FAM_YCBCR) {
GST_DEBUG_OBJECT (dec, "trying YUV");
if ((dec->cmpt[0] = jas_image_getcmptbytype (image,
JAS_IMAGE_CT_COLOR (JAS_CLRSPC_CHANIND_YCBCR_Y))) < 0 ||
(dec->cmpt[1] = jas_image_getcmptbytype (image,
JAS_IMAGE_CT_COLOR (JAS_CLRSPC_CHANIND_YCBCR_CB))) < 0 ||
(dec->cmpt[2] = jas_image_getcmptbytype (image,
JAS_IMAGE_CT_COLOR (JAS_CLRSPC_CHANIND_YCBCR_CR))) < 0) {
GST_DEBUG_OBJECT (dec, "missing YUV color component");
continue;
}
} else
continue;
/* match format with validity checks */
ok = TRUE;
for (j = 0; j < channels; j++) {
gint cmpt;
cmpt = dec->cmpt[j];
if (dec->cwidth[cmpt] != gst_video_format_get_component_width (format, j,
width) ||
dec->cheight[cmpt] != gst_video_format_get_component_height (format,
j, height))
ok = FALSE;
}
/* commit to this format */
if (ok) {
dec->format = format;
break;
}
}
if (caps)
gst_caps_unref (caps);
gst_caps_unref (allowed_caps);
if (dec->format != GST_VIDEO_FORMAT_UNKNOWN) {
/* cache some video format properties */
for (j = 0; j < channels; ++j) {
dec->offset[j] = gst_video_format_get_component_offset (dec->format, j,
dec->width, dec->height);
dec->inc[j] = gst_video_format_get_pixel_stride (dec->format, j);
dec->stride[j] = gst_video_format_get_row_stride (dec->format, j,
dec->width);
}
dec->image_size = gst_video_format_get_size (dec->format, width, height);
dec->alpha = gst_video_format_has_alpha (dec->format);
if (dec->buf)
g_free (dec->buf);
dec->buf = g_new0 (glong, dec->width);
caps = gst_video_format_new_caps (dec->format, dec->width, dec->height,
dec->framerate_numerator, dec->framerate_denominator, 1, 1);
GST_DEBUG_OBJECT (dec, "Set format to %d, size to %dx%d", dec->format,
dec->width, dec->height);
if (!gst_pad_set_caps (dec->srcpad, caps))
flow_ret = GST_FLOW_NOT_NEGOTIATED;
else
flow_ret = GST_FLOW_OK;
gst_caps_unref (caps);
}
done:
return flow_ret;
/* ERRORS */
fail_image:
{
GST_DEBUG_OBJECT (dec, "Failed to process decoded image.");
flow_ret = GST_FLOW_NOT_NEGOTIATED;
goto done;
}
not_supported:
{
GST_DEBUG_OBJECT (dec, "Decoded image has unsupported colour space.");
GST_ELEMENT_ERROR (dec, STREAM, DECODE, (NULL), ("Unsupported colorspace"));
flow_ret = GST_FLOW_ERROR;
goto done;
}
}
/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % W r i t e J P 2 I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % WriteJP2Image() writes an image in the JPEG 2000 image format. % % JP2 support originally written by Nathan Brown, [email protected] % % The format of the WriteJP2Image method is: % % MagickBooleanType WriteJP2Image(const ImageInfo *image_info, % Image *image,ExceptionInfo *exception) % % A description of each parameter follows. % % o image_info: the image info. % % o image: The image. % % o exception: return any errors or warnings in this structure. % */ static MagickBooleanType WriteJP2Image(const ImageInfo *image_info,Image *image, ExceptionInfo *exception) { char *key, magick[MaxTextExtent], *options; const char *option; jas_image_cmptparm_t component_info[4]; jas_image_t *jp2_image; jas_matrix_t *pixels[4]; jas_stream_t *jp2_stream; MagickBooleanType status; QuantumAny range; register const Quantum *p; register ssize_t i, x; size_t number_components; ssize_t format, y; /* Open image file. */ assert(image_info != (const ImageInfo *) NULL); assert(image_info->signature == MagickSignature); assert(image != (Image *) NULL); assert(image->signature == MagickSignature); if (image->debug != MagickFalse) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); assert(exception != (ExceptionInfo *) NULL); assert(exception->signature == MagickSignature); status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception); if (status == MagickFalse) return(status); /* Initialize JPEG 2000 API. */ if (IssRGBCompatibleColorspace(image->colorspace) == MagickFalse) (void) TransformImageColorspace(image,sRGBColorspace,exception); jp2_stream=JP2StreamManager(image); if (jp2_stream == (jas_stream_t *) NULL) ThrowWriterException(DelegateError,"UnableToManageJP2Stream"); number_components=image->alpha_trait ? 4UL : 3UL; if (IsGrayColorspace(image->colorspace) != MagickFalse) number_components=1; if ((image->columns != (unsigned int) image->columns) || (image->rows != (unsigned int) image->rows)) ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit"); (void) ResetMagickMemory(&component_info,0,sizeof(component_info)); for (i=0; i < (ssize_t) number_components; i++) { component_info[i].tlx=0; component_info[i].tly=0; component_info[i].hstep=1; component_info[i].vstep=1; component_info[i].width=(unsigned int) image->columns; component_info[i].height=(unsigned int) image->rows; component_info[i].prec=(int) MagickMax(MagickMin(image->depth,16),2); component_info[i].sgnd=MagickFalse; } jp2_image=jas_image_create((int) number_components,component_info, JAS_CLRSPC_UNKNOWN); if (jp2_image == (jas_image_t *) NULL) ThrowWriterException(DelegateError,"UnableToCreateImage"); switch (image->colorspace) { case RGBColorspace: case sRGBColorspace: { /* RGB colorspace. */ jas_image_setclrspc(jp2_image,JAS_CLRSPC_SRGB); jas_image_setcmpttype(jp2_image,0, (jas_image_cmpttype_t) JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_R)); jas_image_setcmpttype(jp2_image,1, (jas_image_cmpttype_t) JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_G)); jas_image_setcmpttype(jp2_image,2, (jas_image_cmpttype_t) JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_B)); if (number_components == 4) jas_image_setcmpttype(jp2_image,3,JAS_IMAGE_CT_OPACITY); break; } case GRAYColorspace: { /* Grayscale colorspace. */ jas_image_setclrspc(jp2_image,JAS_CLRSPC_SGRAY); jas_image_setcmpttype(jp2_image,0, JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_GRAY_Y)); break; } case YCbCrColorspace: { /* YCbCr colorspace. */ jas_image_setclrspc(jp2_image,JAS_CLRSPC_SYCBCR); jas_image_setcmpttype(jp2_image,0,(jas_image_cmpttype_t) JAS_IMAGE_CT_COLOR(0)); jas_image_setcmpttype(jp2_image,1,(jas_image_cmpttype_t) JAS_IMAGE_CT_COLOR(1)); jas_image_setcmpttype(jp2_image,2,(jas_image_cmpttype_t) JAS_IMAGE_CT_COLOR(2)); if (number_components == 4) jas_image_setcmpttype(jp2_image,3,JAS_IMAGE_CT_OPACITY); break; } case XYZColorspace: { /* XYZ colorspace. */ jas_image_setclrspc(jp2_image,JAS_CLRSPC_CIEXYZ); jas_image_setcmpttype(jp2_image,0,(jas_image_cmpttype_t) JAS_IMAGE_CT_COLOR(0)); jas_image_setcmpttype(jp2_image,1,(jas_image_cmpttype_t) JAS_IMAGE_CT_COLOR(1)); jas_image_setcmpttype(jp2_image,2,(jas_image_cmpttype_t) JAS_IMAGE_CT_COLOR(2)); if (number_components == 4) jas_image_setcmpttype(jp2_image,3,JAS_IMAGE_CT_OPACITY); break; } case LabColorspace: { /* Lab colorspace. */ jas_image_setclrspc(jp2_image,JAS_CLRSPC_CIELAB); jas_image_setcmpttype(jp2_image,0,(jas_image_cmpttype_t) JAS_IMAGE_CT_COLOR(0)); jas_image_setcmpttype(jp2_image,1,(jas_image_cmpttype_t) JAS_IMAGE_CT_COLOR(1)); jas_image_setcmpttype(jp2_image,2,(jas_image_cmpttype_t) JAS_IMAGE_CT_COLOR(2)); if (number_components == 4) jas_image_setcmpttype(jp2_image,3,JAS_IMAGE_CT_OPACITY); break; } default: { /* Unknow. */ jas_image_setclrspc(jp2_image,JAS_CLRSPC_UNKNOWN); jas_image_setcmpttype(jp2_image,0,(jas_image_cmpttype_t) JAS_IMAGE_CT_COLOR(0)); jas_image_setcmpttype(jp2_image,1,(jas_image_cmpttype_t) JAS_IMAGE_CT_COLOR(1)); jas_image_setcmpttype(jp2_image,2,(jas_image_cmpttype_t) JAS_IMAGE_CT_COLOR(2)); if (number_components == 4) jas_image_setcmpttype(jp2_image,3,JAS_IMAGE_CT_OPACITY); break; } } /* Convert to JPEG 2000 pixels. */ for (i=0; i < (ssize_t) number_components; i++) { pixels[i]=jas_matrix_create(1,(int) image->columns); if (pixels[i] == (jas_matrix_t *) NULL) { for (x=0; x < i; x++) jas_matrix_destroy(pixels[x]); jas_image_destroy(jp2_image); ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); } } range=GetQuantumRange((size_t) component_info[0].prec); for (y=0; y < (ssize_t) image->rows; y++) { p=GetVirtualPixels(image,0,y,image->columns,1,exception); if (p == (const Quantum *) NULL) break; for (x=0; x < (ssize_t) image->columns; x++) { if (number_components == 1) jas_matrix_setv(pixels[0],x,(jas_seqent_t) ScaleQuantumToAny( GetPixelIntensity(image,p),range)); else { jas_matrix_setv(pixels[0],x,(jas_seqent_t) ScaleQuantumToAny( GetPixelRed(image,p),range)); jas_matrix_setv(pixels[1],x,(jas_seqent_t) ScaleQuantumToAny( GetPixelGreen(image,p),range)); jas_matrix_setv(pixels[2],x,(jas_seqent_t) ScaleQuantumToAny( GetPixelBlue(image,p),range)); if (number_components > 3) jas_matrix_setv(pixels[3],x,(jas_seqent_t) ScaleQuantumToAny( GetPixelAlpha(image,p),range)); } p+=GetPixelChannels(image); } for (i=0; i < (ssize_t) number_components; i++) (void) jas_image_writecmpt(jp2_image,(short) i,0,(unsigned int) y, (unsigned int) image->columns,1,pixels[i]); status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, image->rows); if (status == MagickFalse) break; } (void) CopyMagickString(magick,image_info->magick,MaxTextExtent); if (LocaleCompare(magick,"J2C") == 0) (void) CopyMagickString(magick,"JPC",MaxTextExtent); LocaleLower(magick); format=jas_image_strtofmt(magick); options=(char *) NULL; ResetImageOptionIterator(image_info); key=GetNextImageOption(image_info); for ( ; key != (char *) NULL; key=GetNextImageOption(image_info)) { option=GetImageOption(image_info,key); if (option == (const char *) NULL) continue; if (LocaleNCompare(key,"jp2:",4) == 0) { (void) ConcatenateString(&options,key+4); if (*option != '\0') { (void) ConcatenateString(&options,"="); (void) ConcatenateString(&options,option); } (void) ConcatenateString(&options," "); } } option=GetImageOption(image_info,"jp2:rate"); if ((option == (const char *) NULL) && (image_info->compression != LosslessJPEGCompression) && (image->quality != UndefinedCompressionQuality) && ((double) image->quality <= 99.5) && ((image->rows*image->columns) > 2500)) { char option[MaxTextExtent]; double alpha, header_size, number_pixels, rate, target_size; alpha=115.0-image->quality; rate=100.0/(alpha*alpha); header_size=550.0; header_size+=(number_components-1)*142; number_pixels=(double) image->rows*image->columns*number_components* (GetImageQuantumDepth(image,MagickTrue)/8); target_size=(number_pixels*rate)+header_size; rate=target_size/number_pixels; (void) FormatLocaleString(option,MaxTextExtent,"rate=%g",rate); (void) ConcatenateString(&options,option); } status=jas_image_encode(jp2_image,jp2_stream,format,options) != 0 ? MagickTrue : MagickFalse; if (options != (char *) NULL) options=DestroyString(options); (void) jas_stream_close(jp2_stream); for (i=0; i < (ssize_t) number_components; i++) jas_matrix_destroy(pixels[i]); jas_image_destroy(jp2_image); if (status != MagickFalse) ThrowWriterException(DelegateError,"UnableToEncodeImageFile"); return(MagickTrue); }
void JPCInstance::CreateImage( const ImageInfo& info )
{
CheckOpenStream( !m_path.IsEmpty(), "CreateImage" );
InitJasPer();
if ( !info.IsValid() )
JP2KERROR( "Invalid image parameters in JPEG2000 file creation" );
if ( info.colorSpace != ColorSpace::RGB && info.colorSpace != ColorSpace::Gray )
JP2KERROR( "Unsupported color space in JPEG2000 file creation" );
if ( m_options.bitsPerSample != 8 )
if ( m_jp2Options.lossyCompression || m_options.bitsPerSample < 8 )
m_options.bitsPerSample = 8;
else if ( m_options.bitsPerSample != 16 )
m_options.bitsPerSample = 16;
if ( m_jp2CMProfile == nullptr )
m_options.embedICCProfile = false;
m_options.ieeefpSampleFormat = m_options.complexSample = false;
IsoString path8 =
#ifdef __PCL_WINDOWS
File::UnixPathToWindows( m_path ).ToMBS();
#else
m_path.ToUTF8();
#endif
m_jp2Stream = jas_stream_fopen( path8.c_str(), "wb" );
if ( m_jp2Stream == nullptr )
JP2KERROR( "Unable to create JPEG2000 file" );
m_jp2Image = jas_image_create0();
if ( m_jp2Image == nullptr )
JP2KERROR( "Unable to create JPEG2000 image" );
for ( int c = 0; c < info.numberOfChannels; ++c )
{
jas_image_cmptparm_t p;
::memset( &p, 0, sizeof( jas_image_cmptparm_t ) );
p.tlx = p.tly = 0; // top-left corner position
p.hstep = p.vstep = 1; // coordinate grid step sizes
p.width = info.width; // width in pixels
p.height = info.height; // height in pixels
p.prec = m_options.bitsPerSample; // bit depth: 8 or 16 bits
p.sgnd = m_jp2Options.signedSample; // signed or unsigned samples
if ( jas_image_addcmpt( m_jp2Image, c, &p ) != 0 )
JP2KERROR( "Unable to create JPEG2000 image component" );
}
if ( info.colorSpace == ColorSpace::Gray )
{
jas_image_setclrspc( m_jp2Image, m_options.embedICCProfile ? JAS_CLRSPC_GENGRAY : JAS_CLRSPC_SGRAY );
jas_image_setcmpttype( m_jp2Image, 0, JAS_IMAGE_CT_COLOR( JAS_CLRSPC_CHANIND_GRAY_Y ) );
if ( info.numberOfChannels > 1 )
jas_image_setcmpttype( m_jp2Image, 1, JAS_IMAGE_CT_COLOR( JAS_IMAGE_CT_OPACITY ) );
}
else
{
jas_image_setclrspc( m_jp2Image, m_options.embedICCProfile ? JAS_CLRSPC_GENRGB : JAS_CLRSPC_SRGB );
jas_image_setcmpttype( m_jp2Image, 0, JAS_IMAGE_CT_COLOR( JAS_CLRSPC_CHANIND_RGB_R ) );
jas_image_setcmpttype( m_jp2Image, 1, JAS_IMAGE_CT_COLOR( JAS_CLRSPC_CHANIND_RGB_G ) );
jas_image_setcmpttype( m_jp2Image, 2, JAS_IMAGE_CT_COLOR( JAS_CLRSPC_CHANIND_RGB_B ) );
if ( info.numberOfChannels > 3 )
jas_image_setcmpttype( m_jp2Image, 3, JAS_IMAGE_CT_COLOR( JAS_IMAGE_CT_OPACITY ) );
}
if ( m_options.embedICCProfile )
jas_image_setcmprof( m_jp2Image, m_jp2CMProfile );
if ( m_jp2Options.resolutionData )
{
m_jp2Image->rescm_ = m_options.metricResolution;
m_jp2Image->hdispres_ = RoundI( m_options.xResolution );
m_jp2Image->vdispres_ = RoundI( m_options.yResolution );
}
}
/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % W r i t e J P 2 I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % WriteJP2Image() writes an image in the JPEG 2000 image format. % % JP2 support originally written by Nathan Brown, [email protected] % % The format of the WriteJP2Image method is: % % MagickBooleanType WriteJP2Image(const ImageInfo *image_info,Image *image) % % A description of each parameter follows. % % o image_info: the image info. % % o image: The image. % */ static MagickBooleanType WriteJP2Image(const ImageInfo *image_info,Image *image) { char *key, magick[MaxTextExtent], *options; const char *option; long format, y; jas_image_cmptparm_t component_info[4]; jas_image_t *jp2_image; jas_matrix_t *pixels[4]; jas_stream_t *jp2_stream; MagickBooleanType status; QuantumAny range; register const PixelPacket *p; register long i, x; unsigned short *map; unsigned long number_components; /* Open image file. */ assert(image_info != (const ImageInfo *) NULL); assert(image_info->signature == MagickSignature); assert(image != (Image *) NULL); assert(image->signature == MagickSignature); if (image->debug != MagickFalse) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); if (status == MagickFalse) return(status); /* Intialize JPEG 2000 API. */ if (image->colorspace != RGBColorspace) (void) TransformImageColorspace(image,RGBColorspace); jp2_stream=JP2StreamManager(image); if (jp2_stream == (jas_stream_t *) NULL) ThrowWriterException(DelegateError,"UnableToManageJP2Stream"); number_components=image->matte ? 4UL : 3UL; if ((image_info->type != TrueColorType) && IsGrayImage(image,&image->exception)) number_components=1; if ((image->columns != (unsigned int) image->columns) || (image->rows != (unsigned int) image->rows)) ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit"); (void) ResetMagickMemory(&component_info,0,sizeof(component_info)); for (i=0; i < (long) number_components; i++) { component_info[i].tlx=0; component_info[i].tly=0; component_info[i].hstep=1; component_info[i].vstep=1; component_info[i].width=(unsigned int) image->columns; component_info[i].height=(unsigned int) image->rows; component_info[i].prec=(int) MagickMax(MagickMin(image->depth,16),2); component_info[i].sgnd=MagickFalse; } jp2_image=jas_image_create((int) number_components,component_info, JAS_CLRSPC_UNKNOWN); if (jp2_image == (jas_image_t *) NULL) ThrowWriterException(DelegateError,"UnableToCreateImage"); if (number_components == 1) { /* sRGB Grayscale. */ jas_image_setclrspc(jp2_image,JAS_CLRSPC_SGRAY); jas_image_setcmpttype(jp2_image,0, JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_GRAY_Y)); } else { /* sRGB. */ jas_image_setclrspc(jp2_image,JAS_CLRSPC_SRGB); jas_image_setcmpttype(jp2_image,0, JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_R)); jas_image_setcmpttype(jp2_image,1, JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_G)); jas_image_setcmpttype(jp2_image,2, JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_B)); if (number_components == 4) jas_image_setcmpttype(jp2_image,3,JAS_IMAGE_CT_OPACITY); } /* Convert to JPEG 2000 pixels. */ for (i=0; i < (long) number_components; i++) { pixels[i]=jas_matrix_create(1,(int) image->columns); if (pixels[i] == (jas_matrix_t *) NULL) { for (x=0; x < i; x++) jas_matrix_destroy(pixels[x]); jas_image_destroy(jp2_image); ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); } } range=GetQuantumRange((unsigned long) component_info[0].prec); map=(unsigned short *) AcquireQuantumMemory(MaxMap+1,sizeof(*map)); for (i=0; i <= (long) MaxMap; i++) map[i]=(unsigned short) ScaleQuantumToMap((Quantum) ScaleQuantumToAny((Quantum) i,range)); if (map == (unsigned short *) NULL) { for (i=0; i < (long) number_components; i++) jas_matrix_destroy(pixels[i]); jas_image_destroy(jp2_image); ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); } for (y=0; y < (long) image->rows; y++) { p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); if (p == (const PixelPacket *) NULL) break; for (x=0; x < (long) image->columns; x++) { if (number_components == 1) jas_matrix_setv(pixels[0],x,map[ScaleQuantumToMap( PixelIntensityToQuantum(p))]); else { jas_matrix_setv(pixels[0],x,map[ScaleQuantumToMap(p->red)]); jas_matrix_setv(pixels[1],x,map[ScaleQuantumToMap(p->green)]); jas_matrix_setv(pixels[2],x,map[ScaleQuantumToMap(p->blue)]); if (number_components > 3) jas_matrix_setv(pixels[3],x,map[ScaleQuantumToMap((Quantum) (QuantumRange-p->opacity))]); } p++; } for (i=0; i < (long) number_components; i++) (void) jas_image_writecmpt(jp2_image,(short) i,0,(unsigned int) y, (unsigned int) image->columns,1,pixels[i]); status=SetImageProgress(image,SaveImageTag,y,image->rows); if (status == MagickFalse) break; } map=(unsigned short *) RelinquishMagickMemory(map); (void) CopyMagickString(magick,image_info->magick,MaxTextExtent); LocaleLower(magick); format=jas_image_strtofmt(magick); options=(char *) NULL; ResetImageOptionIterator(image_info); key=GetNextImageOption(image_info); while (key != (char *) NULL) { option=GetImageOption(image_info,key); if (option != (const char *) NULL) { if (LocaleNCompare(key,"jp2:",4) == 0) { (void) ConcatenateString(&options,key+4); if (*option != '\0') { (void) ConcatenateString(&options,"="); (void) ConcatenateString(&options,option); } (void) ConcatenateString(&options," "); } } key=GetNextImageOption(image_info); } option=GetImageOption(image_info,"jp2:rate"); if ((option == (const char *) NULL) && (image_info->compression != LosslessJPEGCompression) && (image->quality != UndefinedCompressionQuality) && ((double) image->quality <= 99.5) && ((image->rows*image->columns) > 2500)) { char option[MaxTextExtent]; double alpha, header_size, number_pixels, rate, target_size; alpha=115.0-image->quality; rate=100.0/(alpha*alpha); header_size=550.0; header_size+=(number_components-1)*142; number_pixels=(double) image->rows*image->columns*number_components* (GetImageQuantumDepth(image,MagickTrue)/8); target_size=(number_pixels*rate)+header_size; rate=target_size/number_pixels; (void) FormatMagickString(option,MaxTextExtent,"rate=%g",rate); (void) ConcatenateString(&options,option); } status=jas_image_encode(jp2_image,jp2_stream,format,options) != 0 ? MagickTrue : MagickFalse; (void) jas_stream_close(jp2_stream); for (i=0; i < (long) number_components; i++) jas_matrix_destroy(pixels[i]); jas_image_destroy(jp2_image); if (status != MagickFalse) ThrowWriterException(DelegateError,"UnableToEncodeImageFile"); return(MagickTrue); }
jas_image_t *pnm_decode(jas_stream_t *in, const char *optstr)
{
pnm_hdr_t hdr;
jas_image_t *image;
jas_image_cmptparm_t cmptparms[3];
jas_image_cmptparm_t *cmptparm;
int i;
pnm_dec_importopts_t opts;
size_t num_samples;
image = 0;
JAS_DBGLOG(10, ("pnm_decode(%p, \"%s\")\n", in, optstr ? optstr : ""));
if (pnm_dec_parseopts(optstr, &opts)) {
goto error;
}
/* Read the file header. */
if (pnm_gethdr(in, &hdr)) {
goto error;
}
JAS_DBGLOG(10, (
"magic %lx; width %lu; height %ld; numcmpts %d; maxval %ld; sgnd %d\n",
JAS_CAST(unsigned long, hdr.magic), JAS_CAST(long, hdr.width),
JAS_CAST(long, hdr.height), hdr.numcmpts, JAS_CAST(long, hdr.maxval),
hdr.sgnd)
);
if (!jas_safe_size_mul3(hdr.width, hdr.height, hdr.numcmpts,
&num_samples)) {
jas_eprintf("image too large\n");
goto error;
}
if (opts.max_samples > 0 && num_samples > opts.max_samples) {
jas_eprintf(
"maximum number of samples would be exceeded (%zu > %zu)\n",
num_samples, opts.max_samples);
goto error;
}
/* Create an image of the correct size. */
for (i = 0, cmptparm = cmptparms; i < hdr.numcmpts; ++i, ++cmptparm) {
cmptparm->tlx = 0;
cmptparm->tly = 0;
cmptparm->hstep = 1;
cmptparm->vstep = 1;
cmptparm->width = hdr.width;
cmptparm->height = hdr.height;
cmptparm->prec = pnm_maxvaltodepth(hdr.maxval);
cmptparm->sgnd = hdr.sgnd;
}
if (!(image = jas_image_create(hdr.numcmpts, cmptparms,
JAS_CLRSPC_UNKNOWN))) {
goto error;
}
if (hdr.numcmpts == 3) {
jas_image_setclrspc(image, JAS_CLRSPC_SRGB);
jas_image_setcmpttype(image, 0,
JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_R));
jas_image_setcmpttype(image, 1,
JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_G));
jas_image_setcmpttype(image, 2,
JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_B));
} else {
jas_image_setclrspc(image, JAS_CLRSPC_SGRAY);
jas_image_setcmpttype(image, 0,
JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_GRAY_Y));
}
/* Read image data from stream into image. */
if (pnm_getdata(in, &hdr, image, opts.allow_trunc)) {
goto error;
}
return image;
error:
if (image) {
jas_image_destroy(image);
}
return 0;
}
bool JP2KLoader::save(const QString& filePath, DImgLoaderObserver* observer)
{
FILE* file = fopen(QFile::encodeName(filePath), "wb");
if (!file)
{
return false;
}
fclose(file);
// -------------------------------------------------------------------
// Initialize JPEG 2000 API.
register long i, x, y;
unsigned long number_components;
jas_image_t* jp2_image = 0;
jas_stream_t* jp2_stream = 0;
jas_matrix_t* pixels[4];
jas_image_cmptparm_t component_info[4];
int init = jas_init();
if (init != 0)
{
kDebug() << "Unable to init JPEG2000 decoder";
return false;
}
jp2_stream = jas_stream_fopen(QFile::encodeName(filePath), "wb");
if (jp2_stream == 0)
{
kDebug() << "Unable to open JPEG2000 stream";
return false;
}
number_components = imageHasAlpha() ? 4 : 3;
for (i = 0 ; i < (long)number_components ; ++i)
{
component_info[i].tlx = 0;
component_info[i].tly = 0;
component_info[i].hstep = 1;
component_info[i].vstep = 1;
component_info[i].width = imageWidth();
component_info[i].height = imageHeight();
component_info[i].prec = imageBitsDepth();
component_info[i].sgnd = false;
}
jp2_image = jas_image_create(number_components, component_info, JAS_CLRSPC_UNKNOWN);
if (jp2_image == 0)
{
jas_stream_close(jp2_stream);
kDebug() << "Unable to create JPEG2000 image";
return false;
}
if (observer)
{
observer->progressInfo(m_image, 0.1F);
}
// -------------------------------------------------------------------
// Check color space.
if (number_components >= 3 ) // RGB & RGBA
{
// Alpha Channel
if (number_components == 4 )
{
jas_image_setcmpttype(jp2_image, 3, JAS_IMAGE_CT_OPACITY);
}
jas_image_setclrspc(jp2_image, JAS_CLRSPC_SRGB);
jas_image_setcmpttype(jp2_image, 0, JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_R));
jas_image_setcmpttype(jp2_image, 1, JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_G));
jas_image_setcmpttype(jp2_image, 2, JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_B));
}
// -------------------------------------------------------------------
// Set ICC color profile.
// FIXME : doesn't work yet!
jas_cmprof_t* cm_profile = 0;
jas_iccprof_t* icc_profile = 0;
QByteArray profile_rawdata = m_image->getIccProfile().data();
icc_profile = jas_iccprof_createfrombuf((uchar*)profile_rawdata.data(), profile_rawdata.size());
if (icc_profile != 0)
{
cm_profile = jas_cmprof_createfromiccprof(icc_profile);
if (cm_profile != 0)
{
jas_image_setcmprof(jp2_image, cm_profile);
}
}
// -------------------------------------------------------------------
// Convert to JPEG 2000 pixels.
for (i = 0 ; i < (long)number_components ; ++i)
{
pixels[i] = jas_matrix_create(1, (unsigned int)imageWidth());
if (pixels[i] == 0)
{
for (x = 0 ; x < i ; ++x)
{
jas_matrix_destroy(pixels[x]);
}
jas_image_destroy(jp2_image);
kDebug() << "Error encoding JPEG2000 image data : Memory Allocation Failed";
return false;
}
}
unsigned char* data = imageData();
unsigned char* pixel;
unsigned short r, g, b, a=0;
uint checkpoint = 0;
for (y = 0 ; y < (long)imageHeight() ; ++y)
{
if (observer && y == (long)checkpoint)
{
checkpoint += granularity(observer, imageHeight(), 0.8F);
if (!observer->continueQuery(m_image))
{
jas_image_destroy(jp2_image);
for (i = 0 ; i < (long)number_components ; ++i)
{
jas_matrix_destroy(pixels[i]);
}
jas_cleanup();
return false;
}
observer->progressInfo(m_image, 0.1 + (0.8 * ( ((float)y)/((float)imageHeight()) )));
}
for (x = 0 ; x < (long)imageWidth() ; ++x)
{
pixel = &data[((y * imageWidth()) + x) * imageBytesDepth()];
if ( imageSixteenBit() ) // 16 bits image.
{
b = (unsigned short)(pixel[0]+256*pixel[1]);
g = (unsigned short)(pixel[2]+256*pixel[3]);
r = (unsigned short)(pixel[4]+256*pixel[5]);
if (imageHasAlpha())
{
a = (unsigned short)(pixel[6]+256*pixel[7]);
}
}
else // 8 bits image.
{
b = (unsigned short)pixel[0];
g = (unsigned short)pixel[1];
r = (unsigned short)pixel[2];
if (imageHasAlpha())
{
a = (unsigned short)(pixel[3]);
}
}
jas_matrix_setv(pixels[0], x, r);
jas_matrix_setv(pixels[1], x, g);
jas_matrix_setv(pixels[2], x, b);
if (number_components > 3)
{
jas_matrix_setv(pixels[3], x, a);
}
}
for (i = 0 ; i < (long)number_components ; ++i)
{
int ret = jas_image_writecmpt(jp2_image, (short) i, 0, (unsigned int)y,
(unsigned int)imageWidth(), 1, pixels[i]);
if (ret != 0)
{
kDebug() << "Error encoding JPEG2000 image data";
jas_image_destroy(jp2_image);
for (i = 0 ; i < (long)number_components ; ++i)
{
jas_matrix_destroy(pixels[i]);
}
jas_cleanup();
return false;
}
}
}
QVariant qualityAttr = imageGetAttribute("quality");
int quality = qualityAttr.isValid() ? qualityAttr.toInt() : 90;
if (quality < 0)
{
quality = 90;
}
if (quality > 100)
{
quality = 100;
}
QString rate;
QTextStream ts( &rate, QIODevice::WriteOnly );
// NOTE: to have a lossless compression use quality=100.
// jp2_encode()::optstr:
// - rate=#B => the resulting file size is about # bytes
// - rate=0.0 .. 1.0 => the resulting file size is about the factor times
// the uncompressed size
ts << "rate=" << ( quality / 100.0F );
kDebug() << "JPEG2000 quality: " << quality;
kDebug() << "JPEG2000 " << rate;
int ret = jp2_encode(jp2_image, jp2_stream, rate.toUtf8().data());
if (ret != 0)
{
kDebug() << "Unable to encode JPEG2000 image";
jas_image_destroy(jp2_image);
jas_stream_close(jp2_stream);
for (i = 0 ; i < (long)number_components ; ++i)
{
jas_matrix_destroy(pixels[i]);
}
jas_cleanup();
return false;
}
if (observer)
{
observer->progressInfo(m_image, 1.0);
}
imageSetAttribute("savedformat", "JP2K");
saveMetadata(filePath);
jas_image_destroy(jp2_image);
jas_stream_close(jp2_stream);
for (i = 0 ; i < (long)number_components ; ++i)
{
jas_matrix_destroy(pixels[i]);
}
jas_cleanup();
return true;
}