static void ReadJP2KImage( GenericImage<P>& img, jas_stream_t* jp2Stream, jas_image_t* jp2Image )
{
int width = jas_image_cmptwidth( jp2Image, 0 );
int height = jas_image_cmptheight( jp2Image, 0 );
int numberOfChannels = jas_image_numcmpts( jp2Image );
jas_matrix_t* pixels = nullptr;
try
{
pixels = jas_matrix_create( 1, width );
if ( pixels == nullptr )
throw Error( "Memory allocation error reading JPEG2000 image" );
// Allocate pixel data
img.AllocateData( width, height, numberOfChannels,
(jas_clrspc_fam( jas_image_clrspc( jp2Image ) ) == JAS_CLRSPC_FAM_GRAY) ?
ColorSpace::Gray : ColorSpace::RGB );
for ( int c = 0; c < numberOfChannels; ++c )
{
int n = jas_image_cmptprec( jp2Image, c );
bool s = jas_image_cmptsgnd( jp2Image, c ) != 0;
for ( int y = 0; y < height; ++y )
{
jas_image_readcmpt( jp2Image, c, 0, y, width, 1, pixels );
typename P::sample* f = img.ScanLine( y, c );
if ( n == 8 )
{
if ( s )
for ( int x = 0; x < width; ++x )
*f++ = P::ToSample( int8( jas_matrix_get( pixels, 0, x ) ) );
else
for ( int x = 0; x < width; ++x )
*f++ = P::ToSample( uint8( jas_matrix_get( pixels, 0, x ) ) );
}
else
{
if ( s )
for ( int x = 0; x < width; ++x )
*f++ = P::ToSample( int16( jas_matrix_get( pixels, 0, x ) ) );
else
for ( int x = 0; x < width; ++x )
*f++ = P::ToSample( uint16( jas_matrix_get( pixels, 0, x ) ) );
}
}
}
jas_matrix_destroy( pixels ), pixels = nullptr;
}
catch ( ... )
{
if ( pixels != nullptr )
jas_matrix_destroy( pixels );
throw;
}
}
static JDIMENSION jpg_get_pixel_rows(j_compress_ptr cinfo, struct jpg_src_s *sinfo)
{
JSAMPLE *bufptr;
int i;
int cmptno;
int width;
int *cmpts;
cmpts = sinfo->enc->cmpts;
width = jas_image_width(sinfo->image);
if (sinfo->error) {
return 0;
}
for (cmptno = 0; cmptno < cinfo->input_components; ++cmptno) {
if (jas_image_readcmpt(sinfo->image, cmpts[cmptno], 0, sinfo->row, width, 1, sinfo->data)) {
;
}
bufptr = (sinfo->buffer[0]) + cmptno;
for (i = 0; i < width; ++i) {
*bufptr = jas_matrix_get(sinfo->data, 0, i);
bufptr += cinfo->input_components;
}
}
++sinfo->row;
return 1;
}
static void
convertToPamPnm(struct pam * const outpamP,
jas_image_t * const jasperP,
int const jasperCmptNo[]) {
jas_matrix_t ** matrix; /* malloc'ed */
/* matrix[X] is the data for Plane X of the current row */
sample * jasperMaxval;
unsigned int row;
tuple * tuplerow;
jas_seqent_t ** jasperRow; /* malloc'ed */
/* A row of a plane of the raster from the Jasper library
This is an array of pointers into the 'matrix' data structures.
*/
bool singleMaxval;
createMatrices(outpamP, &matrix);
computeComponentMaxval(outpamP, jasperP, jasperCmptNo,
&jasperMaxval, &singleMaxval);
MALLOCARRAY(jasperRow, outpamP->depth);
if (jasperRow == NULL)
pm_error("Out of memory");
tuplerow = pnm_allocpamrow(outpamP);
for (row = 0; row < outpamP->height; ++row) {
unsigned int plane;
for (plane = 0; plane < outpamP->depth; ++plane) {
int rc;
rc = jas_image_readcmpt(jasperP, jasperCmptNo[plane], 0, row,
outpamP->width, 1,
matrix[plane]);
if (rc != 0)
pm_error("jas_image_readcmpt() of row %u plane %u "
"failed.",
row, plane);
jasperRow[plane] = jas_matrix_getref(matrix[plane], 0, 0);
}
if (singleMaxval)
copyRowSingleMaxval(jasperRow, tuplerow, outpamP);
else
copyRowAnyMaxval(jasperRow, tuplerow, outpamP, jasperMaxval);
pnm_writepamrow(outpamP, tuplerow);
}
pnm_freepamrow(tuplerow);
destroyMatrices(outpamP, matrix);
free(jasperRow);
free(jasperMaxval);
}
static Image *ReadJP2Image(const ImageInfo *image_info,
ExceptionInfo *exception)
{
Image
*image;
long
y;
jas_image_t
*jp2_image;
jas_matrix_t
*pixels;
jas_stream_t
*jp2_stream;
register long
x;
register PixelPacket
*q;
int
component,
components[4],
number_components;
Quantum
*channel_lut[4];
unsigned int
status;
/*
Open image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AllocateImage(image_info);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == False)
ThrowReaderException(FileOpenError,UnableToOpenFile,image);
/*
Obtain a JP2 Stream.
*/
jp2_stream=JP2StreamManager(image);
if (jp2_stream == (jas_stream_t *) NULL)
ThrowReaderException(DelegateError,UnableToManageJP2Stream,image);
jp2_image=jas_image_decode(jp2_stream,-1,0);
if (jp2_image == (jas_image_t *) NULL)
{
(void) jas_stream_close(jp2_stream);
ThrowReaderException(DelegateError,UnableToDecodeImageFile,image);
}
/*
Validate that we can handle the image and obtain component
indexes.
*/
switch (jas_clrspc_fam(jas_image_clrspc(jp2_image)))
{
case JAS_CLRSPC_FAM_RGB:
{
if (((components[0]=
jas_image_getcmptbytype(jp2_image,
JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_R))) < 0) ||
((components[1]=
jas_image_getcmptbytype(jp2_image,
JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_G))) < 0) ||
((components[2]=
jas_image_getcmptbytype(jp2_image,
JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_B))) < 0))
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
ThrowReaderException(CorruptImageError,MissingImageChannel,image);
}
number_components=3;
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
"Image is in RGB colorspace family");
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
"RED is in channel %d, GREEN is in channel %d, BLUE is in channel %d",
components[0],components[1],components[2]);
if((components[3]=jas_image_getcmptbytype(jp2_image,
JAS_IMAGE_CT_COLOR(JAS_IMAGE_CT_OPACITY))) > 0)
{
image->matte=MagickTrue;
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
"OPACITY is in channel %d",components[3]);
number_components++;
}
break;
}
case JAS_CLRSPC_FAM_GRAY:
{
if ((components[0]=
jas_image_getcmptbytype(jp2_image,
JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_GRAY_Y))) < 0)
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
ThrowReaderException(CorruptImageError,MissingImageChannel,image);
}
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
"Image is in GRAY colorspace family");
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
"GRAY is in channel %d",components[0]);
number_components=1;
break;
}
case JAS_CLRSPC_FAM_YCBCR:
{
components[0]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_YCBCR_Y);
components[1]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_YCBCR_CB);
components[2]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_YCBCR_CR);
if ((components[0] < 0) || (components[1] < 0) || (components[2] < 0))
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
ThrowReaderException(CorruptImageError,MissingImageChannel,image);
}
number_components=3;
components[3]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_OPACITY);
if (components[3] > 0)
{
image->matte=True;
number_components++;
}
image->colorspace=YCbCrColorspace;
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
"Image is in YCBCR colorspace family");
break;
}
default:
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
ThrowReaderException(CoderError,ColorspaceModelIsNotSupported,image);
}
}
image->columns=jas_image_width(jp2_image);
image->rows=jas_image_height(jp2_image);
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
"columns=%lu rows=%lu components=%d",image->columns,image->rows,
number_components);
for (component=0; component < number_components; component++)
{
if(((unsigned long) jas_image_cmptwidth(jp2_image,components[component]) != image->columns) ||
((unsigned long) jas_image_cmptheight(jp2_image,components[component]) != image->rows) ||
(jas_image_cmpttlx(jp2_image, components[component]) != 0) ||
(jas_image_cmpttly(jp2_image, components[component]) != 0) ||
(jas_image_cmpthstep(jp2_image, components[component]) != 1) ||
(jas_image_cmptvstep(jp2_image, components[component]) != 1) ||
(jas_image_cmptsgnd(jp2_image, components[component]) != false))
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
ThrowReaderException(CoderError,IrregularChannelGeometryNotSupported,image);
}
}
image->matte=number_components > 3;
for (component=0; component < number_components; component++)
{
unsigned int
component_depth;
component_depth=jas_image_cmptprec(jp2_image,components[component]);
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
"Component[%d] depth is %u",component,component_depth);
if (0 == component)
image->depth=component_depth;
else
image->depth=Max(image->depth,component_depth);
}
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
"Image depth is %u",image->depth);
if (image_info->ping)
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
return(image);
}
/*
Allocate Jasper pixels.
*/
pixels=jas_matrix_create(1,(unsigned int) image->columns);
if (pixels == (jas_matrix_t *) NULL)
{
jas_image_destroy(jp2_image);
ThrowReaderException(ResourceLimitError,MemoryAllocationFailed,image);
}
/*
Allocate and populate channel LUTs
*/
for (component=0; component < (long) number_components; component++)
{
unsigned long
component_depth,
i,
max_value;
double
scale_to_quantum;
component_depth=jas_image_cmptprec(jp2_image,components[component]);
max_value=MaxValueGivenBits(component_depth);
scale_to_quantum=MaxRGBDouble/max_value;
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
"Channel %d scale is %g", component, scale_to_quantum);
channel_lut[component]=MagickAllocateArray(Quantum *,max_value+1,sizeof(Quantum));
if (channel_lut[component] == (Quantum *) NULL)
{
for ( --component; component >= 0; --component)
MagickFreeMemory(channel_lut[component]);
jas_matrix_destroy(pixels);
jas_image_destroy(jp2_image);
ThrowReaderException(ResourceLimitError,MemoryAllocationFailed,image);
}
for(i=0; i <= max_value; i++)
(channel_lut[component])[i]=scale_to_quantum*i+0.5;
}
/*
Convert JPEG 2000 pixels.
*/
for (y=0; y < (long) image->rows; y++)
{
q=GetImagePixels(image,0,y,image->columns,1);
if (q == (PixelPacket *) NULL)
break;
if (1 == number_components)
{
/* Grayscale */
(void) jas_image_readcmpt(jp2_image,(short) components[0],0,
(unsigned int) y,
(unsigned int) image->columns,1,pixels);
for (x=0; x < (long) image->columns; x++)
{
q->red=q->green=q->blue=(channel_lut[0])[jas_matrix_getv(pixels,x)];
q->opacity=OpaqueOpacity;
q++;
}
}
else
{
/* Red */
(void) jas_image_readcmpt(jp2_image,(short) components[0],0,
(unsigned int) y,
(unsigned int) image->columns,1,pixels);
for (x=0; x < (long) image->columns; x++)
q[x].red=(channel_lut[0])[jas_matrix_getv(pixels,x)];
/* Green */
(void) jas_image_readcmpt(jp2_image,(short) components[1],0,
(unsigned int) y,
(unsigned int) image->columns,1,pixels);
for (x=0; x < (long) image->columns; x++)
q[x].green=(channel_lut[1])[jas_matrix_getv(pixels,x)];
/* Blue */
(void) jas_image_readcmpt(jp2_image,(short) components[2],0,
(unsigned int) y,
(unsigned int) image->columns,1,pixels);
for (x=0; x < (long) image->columns; x++)
q[x].blue=(channel_lut[2])[jas_matrix_getv(pixels,x)];
/* Opacity */
if (number_components > 3)
{
(void) jas_image_readcmpt(jp2_image,(short) components[3],0,
(unsigned int) y,
(unsigned int) image->columns,1,pixels);
for (x=0; x < (long) image->columns; x++)
q[x].opacity=MaxRGB-(channel_lut[3])[jas_matrix_getv(pixels,x)];
}
else
{
for (x=0; x < (long) image->columns; x++)
q[x].opacity=OpaqueOpacity;
}
}
if (!SyncImagePixels(image))
break;
if (image->previous == (Image *) NULL)
if (QuantumTick(y,image->rows))
if (!MagickMonitorFormatted(y,image->rows,exception,LoadImageText,
image->filename,
image->columns,image->rows))
break;
}
if (number_components == 1)
image->is_grayscale=MagickTrue;
{
/*
Obtain ICC ICM color profile
*/
jas_cmprof_t
*cm_profile;
/* Obtain a pointer to the existing jas_cmprof_t profile handle. */
cm_profile=jas_image_cmprof(jp2_image);
if (cm_profile != (jas_cmprof_t *) NULL)
{
jas_iccprof_t
*icc_profile;
/* Obtain a copy of the jas_iccprof_t ICC profile handle */
icc_profile=jas_iccprof_createfromcmprof(cm_profile);
/* or maybe just icc_profile=cm_profile->iccprof */
if (icc_profile != (jas_iccprof_t *) NULL)
{
jas_stream_t
*icc_stream;
icc_stream=jas_stream_memopen(NULL,0);
if ((icc_stream != (jas_stream_t *) NULL) &&
(jas_iccprof_save(icc_profile,icc_stream) == 0) &&
(jas_stream_flush(icc_stream) == 0))
{
jas_stream_memobj_t
*blob;
blob=(jas_stream_memobj_t *) icc_stream->obj_;
if (image->logging)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
"ICC profile: %lu bytes",(unsigned long) blob->len_);
SetImageProfile(image,"ICM",blob->buf_,blob->len_);
(void) jas_stream_close(icc_stream);
jas_iccprof_destroy(icc_profile);
}
}
}
}
for (component=0; component < (long) number_components; component++)
MagickFreeMemory(channel_lut[component]);
jas_matrix_destroy(pixels);
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
return(image);
}
bool Jpeg2KDecoder::readData(Mat& img) {
bool result = false;
int color = img.channels() > 1;
uchar* data = img.data;
int step = img.step;
jas_stream_t* stream = (jas_stream_t*)m_stream;
jas_image_t* image = (jas_image_t*)m_image;
if (stream && image) {
bool convert;
int colorspace;
if (color) {
convert = (jas_image_clrspc(image) != JAS_CLRSPC_SRGB);
colorspace = JAS_CLRSPC_SRGB;
} else {
convert = (jas_clrspc_fam(jas_image_clrspc(image)) != JAS_CLRSPC_FAM_GRAY);
colorspace = JAS_CLRSPC_SGRAY; // TODO GENGRAY or SGRAY?
}
// convert to the desired colorspace
if (convert) {
jas_cmprof_t* clrprof = jas_cmprof_createfromclrspc(colorspace);
if (clrprof) {
jas_image_t* _img = jas_image_chclrspc(image, clrprof, JAS_CMXFORM_INTENT_RELCLR);
if (_img) {
jas_image_destroy(image);
m_image = image = _img;
result = true;
} else {
fprintf(stderr, "JPEG 2000 LOADER ERROR: cannot convert colorspace\n");
}
jas_cmprof_destroy(clrprof);
} else {
fprintf(stderr, "JPEG 2000 LOADER ERROR: unable to create colorspace\n");
}
} else {
result = true;
}
if (result) {
int ncmpts;
int cmptlut[3];
if (color) {
cmptlut[0] = jas_image_getcmptbytype(image, JAS_IMAGE_CT_RGB_B);
cmptlut[1] = jas_image_getcmptbytype(image, JAS_IMAGE_CT_RGB_G);
cmptlut[2] = jas_image_getcmptbytype(image, JAS_IMAGE_CT_RGB_R);
if (cmptlut[0] < 0 || cmptlut[1] < 0 || cmptlut[0] < 0) {
result = false;
}
ncmpts = 3;
} else {
cmptlut[0] = jas_image_getcmptbytype(image, JAS_IMAGE_CT_GRAY_Y);
if (cmptlut[0] < 0) {
result = false;
}
ncmpts = 1;
}
if (result) {
for (int i = 0; i < ncmpts; i++) {
int maxval = 1 << jas_image_cmptprec(image, cmptlut[i]);
int offset = jas_image_cmptsgnd(image, cmptlut[i]) ? maxval / 2 : 0;
int yend = jas_image_cmptbry(image, cmptlut[i]);
int ystep = jas_image_cmptvstep(image, cmptlut[i]);
int xend = jas_image_cmptbrx(image, cmptlut[i]);
int xstep = jas_image_cmpthstep(image, cmptlut[i]);
jas_matrix_t* buffer = jas_matrix_create(yend / ystep, xend / xstep);
if (buffer) {
if (!jas_image_readcmpt(image, cmptlut[i], 0, 0, xend / xstep, yend / ystep, buffer)) {
if (img.depth() == CV_8U) {
result = readComponent8u(data + i, buffer, step, cmptlut[i], maxval, offset, ncmpts);
} else {
result = readComponent16u(((unsigned short*)data) + i, buffer, step / 2, cmptlut[i], maxval, offset, ncmpts);
}
if (!result) {
i = ncmpts;
result = false;
}
}
jas_matrix_destroy(buffer);
}
}
}
} else {
fprintf(stderr, "JPEG2000 LOADER ERROR: colorspace conversion failed\n");
}
}
close();
return result;
}
CPL_C_END
int dec_jpeg2000(char *injpc,g2int bufsize,g2int *outfld)
/*$$$ SUBPROGRAM DOCUMENTATION BLOCK
* . . . .
* SUBPROGRAM: dec_jpeg2000 Decodes JPEG2000 code stream
* PRGMMR: Gilbert ORG: W/NP11 DATE: 2002-12-02
*
* ABSTRACT: This Function decodes a JPEG2000 code stream specified in the
* JPEG2000 Part-1 standard (i.e., ISO/IEC 15444-1) using JasPer
* Software version 1.500.4 (or 1.700.2) written by the University of British
* Columbia and Image Power Inc, and others.
* JasPer is available at http://www.ece.uvic.ca/~mdadams/jasper/.
*
* PROGRAM HISTORY LOG:
* 2002-12-02 Gilbert
*
* USAGE: int dec_jpeg2000(char *injpc,g2int bufsize,g2int *outfld)
*
* INPUT ARGUMENTS:
* injpc - Input JPEG2000 code stream.
* bufsize - Length (in bytes) of the input JPEG2000 code stream.
*
* OUTPUT ARGUMENTS:
* outfld - Output matrix of grayscale image values.
*
* RETURN VALUES :
* 0 = Successful decode
* -3 = Error decode jpeg2000 code stream.
* -5 = decoded image had multiple color components.
* Only grayscale is expected.
*
* REMARKS:
*
* Requires JasPer Software version 1.500.4 or 1.700.2
*
* ATTRIBUTES:
* LANGUAGE: C
* MACHINE: IBM SP
*
*$$$*/
{
#ifndef HAVE_JASPER
// J2K_SUBFILE method
// create "memory file" from buffer
int fileNumber = 0;
VSIStatBufL sStatBuf;
CPLString osFileName = "/vsimem/work.jpc";
// ensure we don't overwrite an existing file accidentally
while ( VSIStatL( osFileName, &sStatBuf ) == 0 ) {
osFileName.Printf( "/vsimem/work%d.jpc", ++fileNumber );
}
VSIFCloseL( VSIFileFromMemBuffer(
osFileName, (unsigned char*)injpc, bufsize,
FALSE ) ); // TRUE to let vsi delete the buffer when done
// Open memory buffer for reading
GDALDataset* poJ2KDataset = (GDALDataset *)
GDALOpen( osFileName, GA_ReadOnly );
if( poJ2KDataset == NULL )
{
printf("dec_jpeg2000: Unable to open JPEG2000 image within GRIB file.\n"
"Is the JPEG2000 driver available?" );
return -3;
}
if( poJ2KDataset->GetRasterCount() != 1 )
{
printf("dec_jpeg2000: Found color image. Grayscale expected.\n");
return (-5);
}
// Fulfill administration: initialize parameters required for RasterIO
int nXSize = poJ2KDataset->GetRasterXSize();
int nYSize = poJ2KDataset->GetRasterYSize();
int nXOff = 0;
int nYOff = 0;
int nBufXSize = nXSize;
int nBufYSize = nYSize;
GDALDataType eBufType = GDT_Int32; // map to type of "outfld" buffer: g2int*
int nBandCount = 1;
int* panBandMap = NULL;
int nPixelSpace = 0;
int nLineSpace = 0;
int nBandSpace = 0;
// Decompress the JPEG2000 into the output integer array.
poJ2KDataset->RasterIO( GF_Read, nXOff, nYOff, nXSize, nYSize,
outfld, nBufXSize, nBufYSize, eBufType,
nBandCount, panBandMap,
nPixelSpace, nLineSpace, nBandSpace, NULL );
// close source file, and "unlink" it.
GDALClose( poJ2KDataset );
VSIUnlink( osFileName );
return 0;
#else
// JasPer method
int ier;
g2int i,j,k;
jas_image_t *image=0;
jas_stream_t *jpcstream;
jas_image_cmpt_t *pcmpt;
char *opts=0;
jas_matrix_t *data;
// jas_init();
ier=0;
//
// Create jas_stream_t containing input JPEG200 codestream in memory.
//
jpcstream=jas_stream_memopen(injpc,bufsize);
//
// Decode JPEG200 codestream into jas_image_t structure.
//
image=jpc_decode(jpcstream,opts);
if ( image == 0 ) {
printf(" jpc_decode return = %d \n",ier);
return -3;
}
pcmpt=image->cmpts_[0];
// Expecting jpeg2000 image to be grayscale only.
// No color components.
//
if (image->numcmpts_ != 1 ) {
printf("dec_jpeg2000: Found color image. Grayscale expected.\n");
return (-5);
}
//
// Create a data matrix of grayscale image values decoded from
// the jpeg2000 codestream.
//
data=jas_matrix_create(jas_image_height(image), jas_image_width(image));
jas_image_readcmpt(image,0,0,0,jas_image_width(image),
jas_image_height(image),data);
//
// Copy data matrix to output integer array.
//
k=0;
for (i=0; i<pcmpt->height_; i++)
for (j=0; j<pcmpt->width_; j++)
outfld[k++]=data->rows_[i][j];
//
// Clean up JasPer work structures.
//
jas_matrix_destroy(data);
ier=jas_stream_close(jpcstream);
jas_image_destroy(image);
return 0;
#endif
}
// Internal function used to load the Jpeg2000 stream.
ILboolean iLoadJp2Internal(jas_stream_t *Stream, ILimage *Image)
{
jas_image_t *Jp2Image = NULL;
jas_matrix_t *origdata;
ILuint x, y, c;
ILimage *TempImage;
// Decode image
Jp2Image = jas_image_decode(Stream, -1, 0);
if (!Jp2Image)
{
ilSetError(IL_ILLEGAL_FILE_VALUE);
jas_stream_close(Stream);
return IL_FALSE;
}
// We're not supporting anything other than 8 bits/component yet.
if (jas_image_cmptprec(Jp2Image, 0) != 8)
{
jas_image_destroy(Jp2Image);
ilSetError(IL_ILLEGAL_FILE_VALUE);
return IL_FALSE;
}
switch (jas_image_numcmpts(Jp2Image))
{
case 3:
if (Image == NULL) {
ilTexImage(jas_image_width(Jp2Image), jas_image_height(Jp2Image), 1, 3, IL_RGB, IL_UNSIGNED_BYTE, NULL);
TempImage = iCurImage;
}
else {
ifree(Image->Data); // @TODO: Not really the most efficient way to do this...
ilInitImage(Image, jas_image_width(Jp2Image), jas_image_height(Jp2Image), 1, 3, IL_RGB, IL_UNSIGNED_BYTE, NULL);
TempImage = Image;
}
break;
case 4:
if (Image == NULL) {
ilTexImage(jas_image_width(Jp2Image), jas_image_height(Jp2Image), 1, 4, IL_RGBA, IL_UNSIGNED_BYTE, NULL);
TempImage = iCurImage;
}
else {
ifree(Image->Data); // @TODO: Not really the most efficient way to do this...
ilInitImage(Image, jas_image_width(Jp2Image), jas_image_height(Jp2Image), 1, 4, IL_RGBA, IL_UNSIGNED_BYTE, NULL);
TempImage = Image;
}
break;
default:
jas_image_destroy(Jp2Image);
ilSetError(IL_ILLEGAL_FILE_VALUE);
return IL_FALSE;
}
TempImage->Origin = IL_ORIGIN_UPPER_LEFT;
// JasPer stores the data channels separately.
// I am assuming RGBA format. Is it possible for other formats to be included?
for (c = 0; c < TempImage->Bpp; c++)
{
origdata = jas_matrix_create(TempImage->Height, TempImage->Width);
if (!origdata)
{
ilSetError(IL_LIB_JP2_ERROR);
return IL_FALSE; // @TODO: Error
}
// Have to convert data into an intermediate matrix format.
if (jas_image_readcmpt(Jp2Image, c, 0, 0, TempImage->Width, TempImage->Height, origdata))
{
return IL_FALSE;
}
for (y = 0; y < TempImage->Height; y++)
{
for (x = 0; x < TempImage->Width; x++)
{
TempImage->Data[y * TempImage->Width * TempImage->Bpp + x * TempImage->Bpp + c] = origdata->data_[y * origdata->numcols_ + x];
}
}
jas_matrix_destroy(origdata);
}
jas_image_destroy(Jp2Image);
ilFixImage();
return IL_TRUE;
}
static Image *ReadJP2Image(const ImageInfo *image_info,ExceptionInfo *exception)
{
Image
*image;
jas_cmprof_t
*cm_profile;
jas_iccprof_t
*icc_profile;
jas_image_t
*jp2_image;
jas_matrix_t
*pixels[4];
jas_stream_t
*jp2_stream;
MagickBooleanType
status;
QuantumAny
pixel,
range[4];
register Quantum
*q;
register ssize_t
i,
x;
size_t
maximum_component_depth,
number_components,
x_step[4],
y_step[4];
ssize_t
components[4],
y;
/*
Open image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AcquireImage(image_info,exception);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
/*
Initialize JPEG 2000 API.
*/
jp2_stream=JP2StreamManager(image);
if (jp2_stream == (jas_stream_t *) NULL)
ThrowReaderException(DelegateError,"UnableToManageJP2Stream");
jp2_image=jas_image_decode(jp2_stream,-1,0);
if (jp2_image == (jas_image_t *) NULL)
{
(void) jas_stream_close(jp2_stream);
ThrowReaderException(DelegateError,"UnableToDecodeImageFile");
}
image->columns=jas_image_width(jp2_image);
image->rows=jas_image_height(jp2_image);
image->compression=JPEG2000Compression;
switch (jas_clrspc_fam(jas_image_clrspc(jp2_image)))
{
case JAS_CLRSPC_FAM_RGB:
{
SetImageColorspace(image,RGBColorspace,exception);
components[0]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_RGB_R);
components[1]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_RGB_G);
components[2]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_RGB_B);
if ((components[0] < 0) || (components[1] < 0) || (components[2] < 0))
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
ThrowReaderException(CorruptImageError,"MissingImageChannel");
}
number_components=3;
components[3]=jas_image_getcmptbytype(jp2_image,3);
if (components[3] > 0)
{
image->alpha_trait=BlendPixelTrait;
number_components++;
}
break;
}
case JAS_CLRSPC_FAM_GRAY:
{
SetImageColorspace(image,GRAYColorspace,exception);
components[0]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_GRAY_Y);
if (components[0] < 0)
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
ThrowReaderException(CorruptImageError,"MissingImageChannel");
}
number_components=1;
break;
}
case JAS_CLRSPC_FAM_YCBCR:
{
SetImageColorspace(image,YCbCrColorspace,exception);
components[0]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_YCBCR_Y);
components[1]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_YCBCR_CB);
components[2]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_YCBCR_CR);
if ((components[0] < 0) || (components[1] < 0) || (components[2] < 0))
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
ThrowReaderException(CorruptImageError,"MissingImageChannel");
}
number_components=3;
components[3]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_UNKNOWN);
if (components[3] > 0)
{
image->alpha_trait=BlendPixelTrait;
number_components++;
}
break;
}
case JAS_CLRSPC_FAM_XYZ:
{
SetImageColorspace(image,XYZColorspace,exception);
components[0]=jas_image_getcmptbytype(jp2_image,0);
components[1]=jas_image_getcmptbytype(jp2_image,1);
components[2]=jas_image_getcmptbytype(jp2_image,2);
if ((components[0] < 0) || (components[1] < 0) || (components[2] < 0))
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
ThrowReaderException(CorruptImageError,"MissingImageChannel");
}
number_components=3;
components[3]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_UNKNOWN);
if (components[3] > 0)
{
image->alpha_trait=BlendPixelTrait;
number_components++;
}
break;
}
case JAS_CLRSPC_FAM_LAB:
{
SetImageColorspace(image,LabColorspace,exception);
components[0]=jas_image_getcmptbytype(jp2_image,0);
components[1]=jas_image_getcmptbytype(jp2_image,1);
components[2]=jas_image_getcmptbytype(jp2_image,2);
if ((components[0] < 0) || (components[1] < 0) || (components[2] < 0))
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
ThrowReaderException(CorruptImageError,"MissingImageChannel");
}
number_components=3;
components[3]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_UNKNOWN);
if (components[3] > 0)
{
image->alpha_trait=BlendPixelTrait;
number_components++;
}
break;
}
default:
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
ThrowReaderException(CoderError,"ColorspaceModelIsNotSupported");
}
}
for (i=0; i < (ssize_t) number_components; i++)
{
size_t
height,
width;
width=(size_t) (jas_image_cmptwidth(jp2_image,components[i])*
jas_image_cmpthstep(jp2_image,components[i]));
height=(size_t) (jas_image_cmptheight(jp2_image,components[i])*
jas_image_cmptvstep(jp2_image,components[i]));
x_step[i]=(unsigned int) jas_image_cmpthstep(jp2_image,components[i]);
y_step[i]=(unsigned int) jas_image_cmptvstep(jp2_image,components[i]);
if ((width != image->columns) || (height != image->rows) ||
(jas_image_cmpttlx(jp2_image,components[i]) != 0) ||
(jas_image_cmpttly(jp2_image,components[i]) != 0) ||
(jas_image_cmptsgnd(jp2_image,components[i]) != MagickFalse))
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
ThrowReaderException(CoderError,"IrregularChannelGeometryNotSupported");
}
}
/*
Convert JPEG 2000 pixels.
*/
image->alpha_trait=number_components > 3 ? BlendPixelTrait :
UndefinedPixelTrait;
maximum_component_depth=0;
for (i=0; i < (ssize_t) number_components; i++)
{
maximum_component_depth=(unsigned int) MagickMax((size_t)
jas_image_cmptprec(jp2_image,components[i]),(size_t)
maximum_component_depth);
pixels[i]=jas_matrix_create(1,(int) (image->columns/x_step[i]));
if (pixels[i] == (jas_matrix_t *) NULL)
{
for (--i; i >= 0; i--)
jas_matrix_destroy(pixels[i]);
jas_image_destroy(jp2_image);
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
}
}
image->depth=maximum_component_depth;
if (image_info->ping != MagickFalse)
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
return(GetFirstImageInList(image));
}
for (i=0; i < (ssize_t) number_components; i++)
range[i]=GetQuantumRange((size_t) jas_image_cmptprec(jp2_image,
components[i]));
for (y=0; y < (ssize_t) image->rows; y++)
{
q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (Quantum *) NULL)
break;
for (i=0; i < (ssize_t) number_components; i++)
(void) jas_image_readcmpt(jp2_image,(short) components[i],0,
(jas_image_coord_t) (y/y_step[i]),(jas_image_coord_t) (image->columns/
x_step[i]),1,pixels[i]);
switch (number_components)
{
case 1:
{
/*
Grayscale.
*/
for (x=0; x < (ssize_t) image->columns; x++)
{
pixel=(QuantumAny) jas_matrix_getv(pixels[0],x/x_step[0]);
SetPixelGray(image,ScaleAnyToQuantum((QuantumAny) pixel,range[0]),q);
q+=GetPixelChannels(image);
}
break;
}
case 3:
{
/*
RGB.
*/
for (x=0; x < (ssize_t) image->columns; x++)
{
pixel=(QuantumAny) jas_matrix_getv(pixels[0],x/x_step[0]);
SetPixelRed(image,ScaleAnyToQuantum((QuantumAny) pixel,range[0]),q);
pixel=(QuantumAny) jas_matrix_getv(pixels[1],x/x_step[1]);
SetPixelGreen(image,ScaleAnyToQuantum((QuantumAny) pixel,range[1]),q);
pixel=(QuantumAny) jas_matrix_getv(pixels[2],x/x_step[2]);
SetPixelBlue(image,ScaleAnyToQuantum((QuantumAny) pixel,range[2]),q);
q+=GetPixelChannels(image);
}
break;
}
case 4:
{
/*
RGBA.
*/
for (x=0; x < (ssize_t) image->columns; x++)
{
pixel=(QuantumAny) jas_matrix_getv(pixels[0],x/x_step[0]);
SetPixelRed(image,ScaleAnyToQuantum((QuantumAny) pixel,range[0]),q);
pixel=(QuantumAny) jas_matrix_getv(pixels[1],x/x_step[1]);
SetPixelGreen(image,ScaleAnyToQuantum((QuantumAny) pixel,range[1]),q);
pixel=(QuantumAny) jas_matrix_getv(pixels[2],x/x_step[2]);
SetPixelBlue(image,ScaleAnyToQuantum((QuantumAny) pixel,range[2]),q);
pixel=(QuantumAny) jas_matrix_getv(pixels[3],x/x_step[3]);
SetPixelAlpha(image,ScaleAnyToQuantum((QuantumAny) pixel,range[3]),q);
q+=GetPixelChannels(image);
}
break;
}
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
image->rows);
if (status == MagickFalse)
break;
}
cm_profile=jas_image_cmprof(jp2_image);
icc_profile=(jas_iccprof_t *) NULL;
if (cm_profile != (jas_cmprof_t *) NULL)
icc_profile=jas_iccprof_createfromcmprof(cm_profile);
if (icc_profile != (jas_iccprof_t *) NULL)
{
jas_stream_t
*icc_stream;
icc_stream=jas_stream_memopen(NULL,0);
if ((icc_stream != (jas_stream_t *) NULL) &&
(jas_iccprof_save(icc_profile,icc_stream) == 0) &&
(jas_stream_flush(icc_stream) == 0))
{
jas_stream_memobj_t
*blob;
StringInfo
*icc_profile,
*profile;
/*
Extract the icc profile, handle errors without much noise.
*/
blob=(jas_stream_memobj_t *) icc_stream->obj_;
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
"Profile: ICC, %.20g bytes",(double) blob->len_);
profile=BlobToStringInfo(blob->buf_,blob->len_);
if (profile == (StringInfo *) NULL)
ThrowReaderException(CorruptImageError,"MemoryAllocationFailed");
icc_profile=(StringInfo *) GetImageProfile(image,"icc");
if (icc_profile == (StringInfo *) NULL)
(void) SetImageProfile(image,"icc",profile,exception);
else
(void) ConcatenateStringInfo(icc_profile,profile);
profile=DestroyStringInfo(profile);
(void) jas_stream_close(icc_stream);
}
}
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
for (i=0; i < (ssize_t) number_components; i++)
jas_matrix_destroy(pixels[i]);
return(GetFirstImageInList(image));
}
bool CxImageJAS::Decode(CxFile *hFile, uint32_t imagetype)
{
if (hFile == NULL) return false;
jas_image_t *image=0;
jas_stream_t *in=0;
jas_matrix_t **bufs=0;
int32_t i,error=0;
int32_t fmt;
//jas_setdbglevel(0);
cx_try
{
if (jas_init())
cx_throw("cannot initialize jasper");
in = jas_stream_fdopen(0, "rb");
if (!in)
cx_throw("error: cannot open standard input");
CxFileJas src(hFile,in);
fmt = jas_image_getfmt(in);
if (fmt<0)
cx_throw("error: unknowm format");
image = jas_image_decode(in, fmt, 0);
if (!image){
fmt = -1;
cx_throw("error: cannot load image data");
}
char szfmt[4];
*szfmt = '\0';
strncpy(szfmt,jas_image_fmttostr(fmt),3);
szfmt[3] = '\0';
fmt = -1;
#if CXIMAGE_SUPPORT_JP2
if (strcmp(szfmt,"jp2")==0) fmt = CXIMAGE_FORMAT_JP2;
#endif
#if CXIMAGE_SUPPORT_JPC
if (strcmp(szfmt,"jpc")==0) fmt = CXIMAGE_FORMAT_JPC;
#endif
#if CXIMAGE_SUPPORT_RAS
if (strcmp(szfmt,"ras")==0) fmt = CXIMAGE_FORMAT_RAS;
#endif
#if CXIMAGE_SUPPORT_PNM
if (strcmp(szfmt,"pnm")==0) fmt = CXIMAGE_FORMAT_PNM;
#endif
#if CXIMAGE_SUPPORT_PGX
if (strcmp(szfmt,"pgx")==0) fmt = CXIMAGE_FORMAT_PGX;
#endif
//if (fmt<0)
// cx_throw("error: unknowm format");
int32_t x,y,w,h,depth,cmptno;
w = jas_image_cmptwidth(image,0);
h = jas_image_cmptheight(image,0);
depth = jas_image_cmptprec(image,0);
if (info.nEscape == -1){
head.biWidth = w;
head.biHeight= h;
info.dwType = fmt<0 ? 0 : fmt;
cx_throw("output dimensions returned");
}
if (image->numcmpts_ > 64 || image->numcmpts_ < 0)
cx_throw("error: too many components");
// <LD> 01/Jan/2005: Always force conversion to sRGB. Seems to be required for many types of JPEG2000 file.
// if (depth!=1 && depth!=4 && depth!=8)
if (image->numcmpts_>=3 && depth <=8)
{
jas_image_t *newimage;
jas_cmprof_t *outprof;
//jas_eprintf("forcing conversion to sRGB\n");
outprof = jas_cmprof_createfromclrspc(JAS_CLRSPC_SRGB);
if (!outprof) {
cx_throw("cannot create sRGB profile");
}
newimage = jas_image_chclrspc(image, outprof, JAS_CMXFORM_INTENT_PER);
if (!newimage) {
jas_cmprof_destroy(outprof); // <LD> 01/Jan/2005: Destroy color profile on error.
cx_throw("cannot convert to sRGB");
}
jas_image_destroy(image);
jas_cmprof_destroy(outprof);
image = newimage;
}
bufs = (jas_matrix_t **)calloc(image->numcmpts_, sizeof(jas_matrix_t**));
for (i = 0; i < image->numcmpts_; ++i) {
bufs[i] = jas_matrix_create(1, w);
if (!bufs[i]) {
cx_throw("error: cannot allocate memory");
}
}
int32_t nshift = (depth>8) ? (depth-8) : 0;
if (image->numcmpts_==3 &&
image->cmpts_[0]->width_ == image->cmpts_[1]->width_ &&
image->cmpts_[1]->width_ == image->cmpts_[2]->width_ &&
image->cmpts_[0]->height_ == image->cmpts_[1]->height_ &&
image->cmpts_[1]->height_ == image->cmpts_[2]->height_ &&
image->cmpts_[0]->prec_ == image->cmpts_[1]->prec_ &&
image->cmpts_[1]->prec_ == image->cmpts_[2]->prec_ )
{
if(!Create(w,h,24,fmt))
cx_throw("");
RGBQUAD c;
for (y=0; y<h; y++) {
for (cmptno = 0; cmptno < image->numcmpts_; ++cmptno) {
jas_image_readcmpt(image, cmptno, 0, y, w, 1, bufs[cmptno]);
}
for (x=0; x<w; x++){
c.rgbRed = (uint8_t)((jas_matrix_getv(bufs[0], x)>>nshift));
c.rgbGreen = (uint8_t)((jas_matrix_getv(bufs[1], x)>>nshift));
c.rgbBlue = (uint8_t)((jas_matrix_getv(bufs[2], x)>>nshift));
SetPixelColor(x,h-1-y,c);
}
}
} else {
info.nNumFrames = image->numcmpts_;
if ((info.nFrame<0)||(info.nFrame>=info.nNumFrames)){
cx_throw("wrong frame!");
}
for (cmptno=0; cmptno<=info.nFrame; cmptno++) {
w = jas_image_cmptwidth(image,cmptno);
h = jas_image_cmptheight(image,cmptno);
depth = jas_image_cmptprec(image,cmptno);
if (depth>8) depth=8;
if(!Create(w,h,depth,imagetype))
cx_throw("");
SetGrayPalette();
for (y=0; y<h; y++) {
jas_image_readcmpt(image, cmptno, 0, y, w, 1, bufs[0]);
for (x=0; x<w; x++){
SetPixelIndex(x,h-1-y,(uint8_t)((jas_matrix_getv(bufs[0], x)>>nshift)));
}
}
}
}
} cx_catch {
int FROM_jpeg2000(char *injpc,int bufsize,unsigned int *outfld)
/*$$$ SUBPROGRAM DOCUMENTATION BLOCK
* . . . .
* SUBPROGRAM: FROM_jpeg2000 Decodes JPEG2000 code stream
* PRGMMR: Gilbert ORG: W/NP11 DATE: 2002-12-02
*
* ABSTRACT: This Function decodes a JPEG2000 code stream specified in the
* JPEG2000 Part-1 standard (i.e., ISO/IEC 15444-1) using JasPer
* Software version 1.700.2 or better written by the University of British
* Columbia and Image Power Inc, and others.
* JasPer is available at http://www.ece.uvic.ca/~mdadams/jasper/.
*
* PROGRAM HISTORY LOG:
* 2002-12-02 Gilbert
* 2015-10-26 M.Valin - removed GRIB library connections, light refactoring,
* changed function name
*
* USAGE: int FROM_jpeg2000(char *injpc,int bufsize,int *outfld)
*
* INPUT ARGUMENTS:
* injpc - Input JPEG2000 code stream.
* bufsize - Length (in bytes) of the input JPEG2000 code stream.
*
* OUTPUT ARGUMENTS:
* outfld - Output matrix of grayscale image values.
*
* RETURN VALUES :
* 0 = Successful decode
* -3 = Error decode jpeg2000 code stream.
* -5 = decoded image had multiple color components.
* Only grayscale is allowed.
*
* REMARKS:
*
* Requires JasPer Software version 1.700.2 or better
*
* ATTRIBUTES:
* LANGUAGE: C
* OS: Linux
*
*$$$*/
{
int ier;
int i,j,k;
jas_image_t *image=0;
jas_stream_t *jpcstream;
jas_image_cmpt_t *pcmpt;
char *opts=0;
jas_matrix_t *data;
#define ROW unsigned long
// ROW *my_row;
unsigned int value;
// jas_init();
ier=0;
//
// Create jas_stream_t containing input JPEG200 codestream in memory.
//
jpcstream=jas_stream_memopen(injpc,bufsize);
//
// Decode JPEG200 codestream into jas_image_t structure.
//
image=jpc_decode(jpcstream,opts);
if ( image == 0 ) {
printf(" jpc_decode return\n");
return -3;
}
pcmpt=image->cmpts_[0];
#if defined(DEBUG)
printf(" SAGOUT DECODE:\n");
printf(" tlx %d \n",image->tlx_);
printf(" tly %d \n",image->tly_);
printf(" brx %d \n",image->brx_);
printf(" bry %d \n",image->bry_);
printf(" numcmpts %d \n",image->numcmpts_);
printf(" maxcmpts %d \n",image->maxcmpts_);
printf(" colorspace %d \n",image->clrspc_);
printf(" inmem %d \n",image->inmem_);
printf(" COMPONENT:\n");
printf(" tlx %d \n",pcmpt->tlx_);
printf(" tly %d \n",pcmpt->tly_);
printf(" hstep %d \n",pcmpt->hstep_);
printf(" vstep %d \n",pcmpt->vstep_);
printf(" width %d \n",pcmpt->width_);
printf(" height %d \n",pcmpt->height_);
printf(" prec %d \n",pcmpt->prec_);
printf(" sgnd %d \n",pcmpt->sgnd_);
printf(" cps %d \n",pcmpt->cps_);
printf(" type %d \n",pcmpt->type_);
#endif
// Expecting jpeg2000 image to be grayscale only.
// No color components.
//
if (image->numcmpts_ != 1 ) {
printf("FROM_jpeg2000: Found color image. Grayscale expected.\n");
return (-5);
}
//
// Create a data matrix of grayscale image values decoded from
// the jpeg2000 codestream.
//
data=jas_matrix_create(jas_image_height(image), jas_image_width(image));
jas_image_readcmpt(image,0,0,0,jas_image_width(image),
jas_image_height(image),data);
//
// Copy data matrix to output integer array.
//
k=0;
// printf ("deltap = %d\n",data->rows_[1]-data->rows_[0]);
for (i=0;i<pcmpt->height_;i++) {
// my_row = (ROW *)data->rows_[i];
// printf ("p = %16p\n",my_row);
for (j=0;j<pcmpt->width_;j++) {
// value = my_row[j];
// outfld[k++] = my_row[j];
// printf ("%4ld ",my_row[j]);
// printf ("%16.16x ",my_row[j]);
outfld[k++]=data->rows_[i][j];
}
// printf ("%d \n",k);
}
//
// Clean up JasPer work structures.
//
jas_matrix_destroy(data);
ier=jas_stream_close(jpcstream);
jas_image_destroy(image);
return 0;
}
bool GrFmtJpeg2000Reader::ReadData( uchar* data, int step, int color )
{
bool result = false;
color = color > 0 || ( m_iscolor && color < 0 );
if( m_stream && m_image )
{
bool convert;
int colorspace;
if( color )
{
convert = (jas_image_clrspc( m_image ) != JAS_CLRSPC_SRGB);
colorspace = JAS_CLRSPC_SRGB;
}
else
{
convert = (jas_clrspc_fam( jas_image_clrspc( m_image ) ) != JAS_CLRSPC_FAM_GRAY);
colorspace = JAS_CLRSPC_SGRAY; // TODO GENGRAY or SGRAY?
}
// convert to the desired colorspace
if( convert )
{
jas_cmprof_t *clrprof = jas_cmprof_createfromclrspc( colorspace );
if( clrprof )
{
jas_image_t *img = jas_image_chclrspc( m_image, clrprof, JAS_CMXFORM_INTENT_RELCLR );
if( img )
{
jas_image_destroy( m_image );
m_image = img;
result = true;
}
else
fprintf(stderr, "JPEG 2000 LOADER ERROR: cannot convert colorspace\n");
jas_cmprof_destroy( clrprof );
}
else
fprintf(stderr, "JPEG 2000 LOADER ERROR: unable to create colorspace\n");
}
else
result = true;
if( result )
{
int ncmpts;
int cmptlut[3];
if( color )
{
cmptlut[0] = jas_image_getcmptbytype( m_image, JAS_IMAGE_CT_RGB_B );
cmptlut[1] = jas_image_getcmptbytype( m_image, JAS_IMAGE_CT_RGB_G );
cmptlut[2] = jas_image_getcmptbytype( m_image, JAS_IMAGE_CT_RGB_R );
if( cmptlut[0] < 0 || cmptlut[1] < 0 || cmptlut[0] < 0 )
result = false;
ncmpts = 3;
}
else
{
cmptlut[0] = jas_image_getcmptbytype( m_image, JAS_IMAGE_CT_GRAY_Y );
if( cmptlut[0] < 0 )
result = false;
ncmpts = 1;
}
if( result )
{
for( int i = 0; i < ncmpts; i++ )
{
int maxval = 1 << jas_image_cmptprec( m_image, cmptlut[i] );
int offset = jas_image_cmptsgnd( m_image, cmptlut[i] ) ? maxval / 2 : 0;
int yend = jas_image_cmptbry( m_image, cmptlut[i] );
int ystep = jas_image_cmptvstep( m_image, cmptlut[i] );
int xend = jas_image_cmptbrx( m_image, cmptlut[i] );
int xstep = jas_image_cmpthstep( m_image, cmptlut[i] );
jas_matrix_t *buffer = jas_matrix_create( yend / ystep, xend / xstep );
if( buffer )
{
if( !jas_image_readcmpt( m_image, cmptlut[i], 0, 0, xend / xstep, yend / ystep, buffer ))
{
if( m_bit_depth == 8 || !m_native_depth )
result = ReadComponent8u( data + i, buffer, step, cmptlut[i], maxval, offset, ncmpts );
else
result = ReadComponent16u( ((unsigned short *)data) + i, buffer, step / 2, cmptlut[i], maxval, offset, ncmpts );
if( !result )
{
i = ncmpts;
result = false;
}
}
jas_matrix_destroy( buffer );
}
}
}
}
else
fprintf(stderr, "JPEG2000 LOADER ERROR: colorspace conversion failed\n" );
}
Close();
return result;
}
int dec_jpeg2000(char *injpc,g2int bufsize,g2int *outfld)
/*$$$ SUBPROGRAM DOCUMENTATION BLOCK
* . . . .
* SUBPROGRAM: dec_jpeg2000 Decodes JPEG2000 code stream
* PRGMMR: Gilbert ORG: W/NP11 DATE: 2002-12-02
*
* ABSTRACT: This Function decodes a JPEG2000 code stream specified in the
* JPEG2000 Part-1 standard (i.e., ISO/IEC 15444-1) using JasPer
* Software version 1.500.4 (or 1.700.2) written by the University of British
* Columbia and Image Power Inc, and others.
* JasPer is available at http://www.ece.uvic.ca/~mdadams/jasper/.
*
* PROGRAM HISTORY LOG:
* 2002-12-02 Gilbert
*
* USAGE: int dec_jpeg2000(char *injpc,g2int bufsize,g2int *outfld)
*
* INPUT ARGUMENTS:
* injpc - Input JPEG2000 code stream.
* bufsize - Length (in bytes) of the input JPEG2000 code stream.
*
* OUTPUT ARGUMENTS:
* outfld - Output matrix of grayscale image values.
*
* RETURN VALUES :
* 0 = Successful decode
* -3 = Error decode jpeg2000 code stream.
* -5 = decoded image had multiple color components.
* Only grayscale is expected.
*
* REMARKS:
*
* Requires JasPer Software version 1.500.4 or 1.700.2
*
* ATTRIBUTES:
* LANGUAGE: C
* MACHINE: IBM SP
*
*$$$*/
{
int ier;
g2int i,j,k;
jas_image_t *image=0;
jas_stream_t *jpcstream;
jas_image_cmpt_t *pcmpt;
char *opts=0;
jas_matrix_t *data;
/* jas_init();*/
ier=0;
/*
// Create jas_stream_t containing input JPEG200 codestream in memory.
*/
jpcstream=jas_stream_memopen(injpc,bufsize);
/*
// Decode JPEG200 codestream into jas_image_t structure.
*/
image=jpc_decode(jpcstream,opts);
if ( image == 0 ) {
printf(" jpc_decode return = %d \n",ier);
return -3;
}
pcmpt=image->cmpts_[0];
/*
printf(" SAGOUT DECODE:\n");
printf(" tlx %d \n",image->tlx_);
printf(" tly %d \n",image->tly_);
printf(" brx %d \n",image->brx_);
printf(" bry %d \n",image->bry_);
printf(" numcmpts %d \n",image->numcmpts_);
printf(" maxcmpts %d \n",image->maxcmpts_);
#ifdef JAS_1_500_4
printf(" colormodel %d \n",image->colormodel_);
#endif
#ifdef JAS_1_700_2
printf(" colorspace %d \n",image->clrspc_);
#endif
printf(" inmem %d \n",image->inmem_);
printf(" COMPONENT:\n");
printf(" tlx %d \n",pcmpt->tlx_);
printf(" tly %d \n",pcmpt->tly_);
printf(" hstep %d \n",pcmpt->hstep_);
printf(" vstep %d \n",pcmpt->vstep_);
printf(" width %d \n",pcmpt->width_);
printf(" height %d \n",pcmpt->height_);
printf(" prec %d \n",pcmpt->prec_);
printf(" sgnd %d \n",pcmpt->sgnd_);
printf(" cps %d \n",pcmpt->cps_);
#ifdef JAS_1_700_2
printf(" type %d \n",pcmpt->type_);
#endif
*/
/* Expecting jpeg2000 image to be grayscale only.
// No color components.
*/
if (image->numcmpts_ != 1 ) {
printf("dec_jpeg2000: Found color image. Grayscale expected.\n");
return (-5);
}
/*
// Create a data matrix of grayscale image values decoded from
// the jpeg2000 codestream.
*/
data=jas_matrix_create(jas_image_height(image), jas_image_width(image));
jas_image_readcmpt(image,0,0,0,jas_image_width(image),
jas_image_height(image),data);
/*
// Copy data matrix to output integer array.
*/
k=0;
for (i=0;i<pcmpt->height_;i++)
for (j=0;j<pcmpt->width_;j++)
outfld[k++]=data->rows_[i][j];
/*
// Clean up JasPer work structures.
*/
jas_matrix_destroy(data);
ier=jas_stream_close(jpcstream);
jas_image_destroy(image);
return 0;
}
static Image *ReadJP2Image(const ImageInfo *image_info,ExceptionInfo *exception)
{
Image
*image;
jas_cmprof_t
*cm_profile;
jas_iccprof_t
*icc_profile;
jas_image_t
*jp2_image;
jas_matrix_t
*pixels[4];
jas_stream_t
*jp2_stream;
long
components[4],
y;
MagickBooleanType
status;
QuantumAny
pixel,
*map[4],
range;
register long
i,
x;
register PixelPacket
*q;
unsigned long
maximum_component_depth,
number_components,
x_step[4],
y_step[4];
/*
Open image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AcquireImage(image_info);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
/*
Initialize JPEG 2000 API.
*/
jp2_stream=JP2StreamManager(image);
if (jp2_stream == (jas_stream_t *) NULL)
ThrowReaderException(DelegateError,"UnableToManageJP2Stream");
jp2_image=jas_image_decode(jp2_stream,-1,0);
if (jp2_image == (jas_image_t *) NULL)
{
(void) jas_stream_close(jp2_stream);
ThrowReaderException(DelegateError,"UnableToDecodeImageFile");
}
switch (jas_clrspc_fam(jas_image_clrspc(jp2_image)))
{
case JAS_CLRSPC_FAM_RGB:
{
components[0]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_RGB_R);
components[1]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_RGB_G);
components[2]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_RGB_B);
if ((components[0] < 0) || (components[1] < 0) || (components[2] < 0))
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
ThrowReaderException(CorruptImageError,"MissingImageChannel");
}
number_components=3;
components[3]=jas_image_getcmptbytype(jp2_image,3);
if (components[3] > 0)
{
image->matte=MagickTrue;
number_components++;
}
break;
}
case JAS_CLRSPC_FAM_GRAY:
{
components[0]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_GRAY_Y);
if (components[0] < 0)
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
ThrowReaderException(CorruptImageError,"MissingImageChannel");
}
number_components=1;
break;
}
case JAS_CLRSPC_FAM_YCBCR:
{
components[0]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_YCBCR_Y);
components[1]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_YCBCR_CB);
components[2]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_YCBCR_CR);
if ((components[0] < 0) || (components[1] < 0) || (components[2] < 0))
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
ThrowReaderException(CorruptImageError,"MissingImageChannel");
}
number_components=3;
components[3]=jas_image_getcmptbytype(jp2_image,JAS_IMAGE_CT_UNKNOWN);
if (components[3] > 0)
{
image->matte=MagickTrue;
number_components++;
}
image->colorspace=YCbCrColorspace;
break;
}
default:
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
ThrowReaderException(CoderError,"ColorspaceModelIsNotSupported");
}
}
image->columns=jas_image_width(jp2_image);
image->rows=jas_image_height(jp2_image);
image->compression=JPEG2000Compression;
for (i=0; i < (long) number_components; i++)
{
unsigned long
height,
width;
width=(unsigned long) (jas_image_cmptwidth(jp2_image,components[i])*
jas_image_cmpthstep(jp2_image,components[i]));
height=(unsigned long) (jas_image_cmptheight(jp2_image,components[i])*
jas_image_cmptvstep(jp2_image,components[i]));
x_step[i]=(unsigned int) jas_image_cmpthstep(jp2_image,components[i]);
y_step[i]=(unsigned int) jas_image_cmptvstep(jp2_image,components[i]);
if ((width != image->columns) || (height != image->rows) ||
(jas_image_cmpttlx(jp2_image,components[i]) != 0) ||
(jas_image_cmpttly(jp2_image,components[i]) != 0) ||
(x_step[i] != 1) || (y_step[i] != 1) ||
(jas_image_cmptsgnd(jp2_image,components[i]) != MagickFalse))
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
ThrowReaderException(CoderError,"IrregularChannelGeometryNotSupported");
}
}
/*
Convert JPEG 2000 pixels.
*/
image->matte=number_components > 3 ? MagickTrue : MagickFalse;
maximum_component_depth=0;
for (i=0; i < (long) number_components; i++)
{
maximum_component_depth=(unsigned int) MagickMax((size_t)
jas_image_cmptprec(jp2_image,components[i]),(size_t)
maximum_component_depth);
pixels[i]=jas_matrix_create(1,(int) (image->columns/x_step[i]));
if (pixels[i] == (jas_matrix_t *) NULL)
{
for (--i; i >= 0; i--)
jas_matrix_destroy(pixels[i]);
jas_image_destroy(jp2_image);
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
}
}
image->depth=maximum_component_depth;
if (image_info->ping != MagickFalse)
{
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
return(GetFirstImageInList(image));
}
for (i=0; i < (long) number_components; i++)
{
long
j;
map[i]=(QuantumAny *) AcquireQuantumMemory(MaxMap+1,sizeof(**map));
if (map[i] == (QuantumAny *) NULL)
{
for (--i; i >= 0; i--)
map[i]=(QuantumAny *) RelinquishMagickMemory(map[i]);
for (i=0; i < (long) number_components; i++)
jas_matrix_destroy(pixels[i]);
jas_image_destroy(jp2_image);
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
}
range=GetQuantumRange((unsigned long) jas_image_cmptprec(jp2_image,
components[i]));
for (j=0; j <= (long) MaxMap; j++)
map[i][j]=ScaleQuantumToMap(ScaleAnyToQuantum((QuantumAny) j,range));
}
for (y=0; y < (long) image->rows; y++)
{
q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (PixelPacket *) NULL)
break;
for (i=0; i < (long) number_components; i++)
(void) jas_image_readcmpt(jp2_image,(short) components[i],0,
((unsigned int) y)/y_step[i],((unsigned int) image->columns)/x_step[i],
1,pixels[i]);
switch (number_components)
{
case 1:
{
/*
Grayscale.
*/
for (x=0; x < (long) image->columns; x++)
{
pixel=(QuantumAny) jas_matrix_getv(pixels[0],x/x_step[0]);
q->red=(Quantum) map[0][pixel];
q->green=q->red;
q->blue=q->red;
q++;
}
break;
}
case 3:
{
/*
RGB.
*/
for (x=0; x < (long) image->columns; x++)
{
pixel=(QuantumAny) jas_matrix_getv(pixels[0],x/x_step[0]);
q->red=(Quantum) map[0][pixel];
pixel=(QuantumAny) jas_matrix_getv(pixels[1],x/x_step[1]);
q->green=(Quantum) map[1][pixel];
pixel=(QuantumAny) jas_matrix_getv(pixels[2],x/x_step[2]);
q->blue=(Quantum) map[2][pixel];
q++;
}
break;
}
case 4:
{
/*
RGBA.
*/
for (x=0; x < (long) image->columns; x++)
{
pixel=(QuantumAny) jas_matrix_getv(pixels[0],x/x_step[0]);
q->red=(Quantum) map[0][pixel];
pixel=(QuantumAny) jas_matrix_getv(pixels[1],x/x_step[1]);
q->green=(Quantum) map[1][pixel];
pixel=(QuantumAny) jas_matrix_getv(pixels[2],x/x_step[2]);
q->blue=(Quantum) map[2][pixel];
pixel=(QuantumAny) jas_matrix_getv(pixels[3],x/x_step[3]);
q->opacity=(Quantum) (QuantumRange-map[3][pixel]);
q++;
}
break;
}
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
status=SetImageProgress(image,LoadImageTag,y,image->rows);
if (status == MagickFalse)
break;
}
for (i=0; i < (long) number_components; i++)
map[i]=(QuantumAny *) RelinquishMagickMemory(map[i]);
cm_profile=jas_image_cmprof(jp2_image);
icc_profile=(jas_iccprof_t *) NULL;
if (cm_profile != (jas_cmprof_t *) NULL)
icc_profile=jas_iccprof_createfromcmprof(cm_profile);
if (icc_profile != (jas_iccprof_t *) NULL)
{
jas_stream_t
*icc_stream;
icc_stream=jas_stream_memopen(NULL,0);
if ((icc_stream != (jas_stream_t *) NULL) &&
(jas_iccprof_save(icc_profile,icc_stream) == 0) &&
(jas_stream_flush(icc_stream) == 0))
{
StringInfo
*icc_profile,
*profile;
jas_stream_memobj_t
*blob;
/*
Extract the icc profile, handle errors without much noise.
*/
blob=(jas_stream_memobj_t *) icc_stream->obj_;
if (image->debug != MagickFalse)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
"Profile: ICC, %lu bytes",(unsigned long) blob->len_);
profile=AcquireStringInfo(blob->len_);
SetStringInfoDatum(profile,blob->buf_);
icc_profile=(StringInfo *) GetImageProfile(image,"icc");
if (icc_profile == (StringInfo *) NULL)
(void) SetImageProfile(image,"icc",profile);
else
(void) ConcatenateStringInfo(icc_profile,profile);
profile=DestroyStringInfo(profile);
(void) jas_stream_close(icc_stream);
}
}
(void) jas_stream_close(jp2_stream);
jas_image_destroy(jp2_image);
for (i=0; i < (long) number_components; i++)
jas_matrix_destroy(pixels[i]);
return(GetFirstImageInList(image));
}
static gboolean
process (GeglOperation *operation,
GeglBuffer *output,
const GeglRectangle *result)
{
GeglChantO *o = GEGL_CHANT_PROPERTIES (operation);
GeglRectangle rect = {0,0,0,0};
jas_image_t *image;
gint width, height, depth;
gsize bpc;
guchar *data = NULL;
gboolean ret;
int components[3];
jas_matrix_t *matrices[3] = {NULL, NULL, NULL};
gint i;
gint row;
gboolean b;
gushort *ptr_s;
guchar *ptr_b;
image = NULL;
width = height = depth = 0;
if (!query_jp2 (o->path, &width, &height, &depth, &image))
return FALSE;
rect.height = height;
rect.width = width;
switch (depth)
{
case 8:
bpc = sizeof (guchar);
break;
case 16:
bpc = sizeof (gushort);
break;
default:
g_warning ("%s: Programmer stupidity error", G_STRLOC);
return FALSE;
}
data = (guchar *) g_malloc (width * height * 3 * bpc);
ptr_s = (gushort *) data;
ptr_b = data;
switch (depth)
{
case 16:
gegl_buffer_get (output, 1.0, &rect, babl_format ("R'G'B' u16"), data,
GEGL_AUTO_ROWSTRIDE);
break;
case 8:
default:
gegl_buffer_get (output, 1.0, &rect, babl_format ("R'G'B' u8"), data,
GEGL_AUTO_ROWSTRIDE);
}
ret = FALSE;
b = FALSE;
do
{
components[0] = jas_image_getcmptbytype
(image, JAS_IMAGE_CT_COLOR(JAS_IMAGE_CT_RGB_R));
components[1] = jas_image_getcmptbytype
(image, JAS_IMAGE_CT_COLOR(JAS_IMAGE_CT_RGB_G));
components[2] = jas_image_getcmptbytype
(image, JAS_IMAGE_CT_COLOR(JAS_IMAGE_CT_RGB_B));
if ((components[0] < 0) || (components[1] < 0) || (components[2] < 0))
{
g_warning (_("One or more of R, G, B components are missing "
"from '%s'"), o->path);
break;
}
if (jas_image_cmptsgnd (image, components[0]) ||
jas_image_cmptsgnd (image, components[1]) ||
jas_image_cmptsgnd (image, components[2]))
{
g_warning (_("One or more of R, G, B components have signed "
"data in '%s'"), o->path);
break;
}
for (i = 0; i < 3; i++)
matrices[i] = jas_matrix_create(1, width);
for (row = 0; row < height; row++)
{
gint plane, col;
jas_seqent_t *jrow[3] = {NULL, NULL, NULL};
for (plane = 0; plane < 3; plane++)
{
int r = jas_image_readcmpt (image, components[plane], 0, row,
width, 1, matrices[plane]);
if (r)
{
g_warning (_("Error reading row %d component %d from '%s'"),
row, plane, o->path);
b = TRUE;
break;
}
}
if (b)
break;
for (plane = 0; plane < 3; plane++)
jrow[plane] = jas_matrix_getref (matrices[plane], 0, 0);
for (col = 0; col < width; col++)
{
switch (depth)
{
case 16:
*ptr_s++ = (gushort) jrow[0][col];
*ptr_s++ = (gushort) jrow[1][col];
*ptr_s++ = (gushort) jrow[2][col];
break;
case 8:
default:
*ptr_b++ = (guchar) jrow[0][col];
*ptr_b++ = (guchar) jrow[1][col];
*ptr_b++ = (guchar) jrow[2][col];
}
}
}
if (b)
break;
switch (depth)
{
case 16:
gegl_buffer_set (output, &rect, babl_format ("R'G'B' u16"), data,
GEGL_AUTO_ROWSTRIDE);
break;
case 8:
default:
gegl_buffer_set (output, &rect, babl_format ("R'G'B' u8"), data,
GEGL_AUTO_ROWSTRIDE);
}
ret = TRUE;
}
while (FALSE); /* structured goto */
for (i = 0; i < 3; i++)
if (matrices[i])
jas_matrix_destroy (matrices[i]);
if (data)
g_free (data);
if (image)
jas_image_destroy (image);
return ret;
}
bool JP2KLoader::load(const QString& filePath, DImgLoaderObserver* observer)
{
readMetadata(filePath, DImg::JPEG);
FILE* file = fopen(QFile::encodeName(filePath), "rb");
if (!file)
{
loadingFailed();
return false;
}
unsigned char header[9];
if (fread(&header, 9, 1, file) != 1)
{
fclose(file);
loadingFailed();
return false;
}
unsigned char jp2ID[5] = { 0x6A, 0x50, 0x20, 0x20, 0x0D, };
unsigned char jpcID[2] = { 0xFF, 0x4F };
if (memcmp(&header[4], &jp2ID, 5) != 0 &&
memcmp(&header, &jpcID, 2) != 0)
{
// not a jpeg2000 file
fclose(file);
loadingFailed();
return false;
}
fclose(file);
imageSetAttribute("format", "JP2K");
if (!(m_loadFlags & LoadImageData) && !(m_loadFlags & LoadICCData))
{
// libjasper will load the full image in memory already when calling jas_image_decode.
// This is bad when scanning. See bugs 215458 and 195583.
//FIXME: Use Exiv2 or OpenJPEG to extract this info
DMetadata metadata(filePath);
QSize size = metadata.getImageDimensions();
if (size.isValid())
{
imageWidth() = size.width();
imageHeight() = size.height();
}
return true;
}
// -------------------------------------------------------------------
// Initialize JPEG 2000 API.
register long i, x, y;
int components[4];
unsigned int maximum_component_depth, scale[4], x_step[4], y_step[4];
unsigned long number_components;
jas_image_t* jp2_image = 0;
jas_stream_t* jp2_stream = 0;
jas_matrix_t* pixels[4];
int init = jas_init();
if (init != 0)
{
kDebug() << "Unable to init JPEG2000 decoder";
loadingFailed();
return false;
}
jp2_stream = jas_stream_fopen(QFile::encodeName(filePath), "rb");
if (jp2_stream == 0)
{
kDebug() << "Unable to open JPEG2000 stream";
loadingFailed();
return false;
}
jp2_image = jas_image_decode(jp2_stream, -1, 0);
if (jp2_image == 0)
{
jas_stream_close(jp2_stream);
kDebug() << "Unable to decode JPEG2000 image";
loadingFailed();
return false;
}
jas_stream_close(jp2_stream);
// some pseudo-progress
if (observer)
{
observer->progressInfo(m_image, 0.1F);
}
// -------------------------------------------------------------------
// Check color space.
int colorModel;
switch (jas_clrspc_fam(jas_image_clrspc(jp2_image)))
{
case JAS_CLRSPC_FAM_RGB:
{
components[0] = jas_image_getcmptbytype(jp2_image, JAS_IMAGE_CT_RGB_R);
components[1] = jas_image_getcmptbytype(jp2_image, JAS_IMAGE_CT_RGB_G);
components[2] = jas_image_getcmptbytype(jp2_image, JAS_IMAGE_CT_RGB_B);
if ((components[0] < 0) || (components[1] < 0) || (components[2] < 0))
{
jas_image_destroy(jp2_image);
kDebug() << "Error parsing JPEG2000 image : Missing Image Channel";
loadingFailed();
return false;
}
number_components = 3;
components[3] = jas_image_getcmptbytype(jp2_image, 3);
if (components[3] > 0)
{
m_hasAlpha = true;
++number_components;
}
colorModel = DImg::RGB;
break;
}
case JAS_CLRSPC_FAM_GRAY:
{
components[0] = jas_image_getcmptbytype(jp2_image, JAS_IMAGE_CT_GRAY_Y);
if (components[0] < 0)
{
jas_image_destroy(jp2_image);
kDebug() << "Error parsing JP2000 image : Missing Image Channel";
loadingFailed();
return false;
}
number_components = 1;
colorModel = DImg::GRAYSCALE;
break;
}
case JAS_CLRSPC_FAM_YCBCR:
{
components[0] = jas_image_getcmptbytype(jp2_image, JAS_IMAGE_CT_YCBCR_Y);
components[1] = jas_image_getcmptbytype(jp2_image, JAS_IMAGE_CT_YCBCR_CB);
components[2] = jas_image_getcmptbytype(jp2_image, JAS_IMAGE_CT_YCBCR_CR);
if ((components[0] < 0) || (components[1] < 0) || (components[2] < 0))
{
jas_image_destroy(jp2_image);
kDebug() << "Error parsing JP2000 image : Missing Image Channel";
loadingFailed();
return false;
}
number_components = 3;
components[3] = jas_image_getcmptbytype(jp2_image, JAS_IMAGE_CT_UNKNOWN);
if (components[3] > 0)
{
m_hasAlpha = true;
++number_components;
}
// FIXME : image->colorspace=YCbCrColorspace;
colorModel = DImg::YCBCR;
break;
}
default:
{
jas_image_destroy(jp2_image);
kDebug() << "Error parsing JP2000 image : Colorspace Model Is Not Supported";
loadingFailed();
return false;
}
}
// -------------------------------------------------------------------
// Check image geometry.
imageWidth() = jas_image_width(jp2_image);
imageHeight() = jas_image_height(jp2_image);
for (i = 0; i < (long)number_components; ++i)
{
if ((((jas_image_cmptwidth(jp2_image, components[i])*
jas_image_cmpthstep(jp2_image, components[i])) != (long)imageWidth())) ||
(((jas_image_cmptheight(jp2_image, components[i])*
jas_image_cmptvstep(jp2_image, components[i])) != (long)imageHeight())) ||
(jas_image_cmpttlx(jp2_image, components[i]) != 0) ||
(jas_image_cmpttly(jp2_image, components[i]) != 0) ||
(jas_image_cmptsgnd(jp2_image, components[i]) != false))
{
jas_image_destroy(jp2_image);
kDebug() << "Error parsing JPEG2000 image : Irregular Channel Geometry Not Supported";
loadingFailed();
return false;
}
x_step[i] = jas_image_cmpthstep(jp2_image, components[i]);
y_step[i] = jas_image_cmptvstep(jp2_image, components[i]);
}
// -------------------------------------------------------------------
// Get image format.
m_hasAlpha = number_components > 3;
maximum_component_depth = 0;
for (i = 0; i < (long)number_components; ++i)
{
maximum_component_depth = qMax((long)jas_image_cmptprec(jp2_image,components[i]),
(long)maximum_component_depth);
pixels[i] = jas_matrix_create(1, ((unsigned int)imageWidth())/x_step[i]);
if (!pixels[i])
{
jas_image_destroy(jp2_image);
kDebug() << "Error decoding JPEG2000 image data : Memory Allocation Failed";
loadingFailed();
return false;
}
}
if (maximum_component_depth > 8)
{
m_sixteenBit = true;
}
for (i = 0 ; i < (long)number_components ; ++i)
{
scale[i] = 1;
int prec = jas_image_cmptprec(jp2_image, components[i]);
if (m_sixteenBit && prec < 16)
{
scale[i] = (1 << (16 - jas_image_cmptprec(jp2_image, components[i])));
}
}
// -------------------------------------------------------------------
// Get image data.
uchar* data = 0;
if (m_loadFlags & LoadImageData)
{
if (m_sixteenBit) // 16 bits image.
{
data = new_failureTolerant(imageWidth()*imageHeight()*8);
}
else
{
data = new_failureTolerant(imageWidth()*imageHeight()*4);
}
if (!data)
{
kDebug() << "Error decoding JPEG2000 image data : Memory Allocation Failed";
jas_image_destroy(jp2_image);
for (i = 0 ; i < (long)number_components ; ++i)
{
jas_matrix_destroy(pixels[i]);
}
jas_cleanup();
loadingFailed();
return false;
}
uint checkPoint = 0;
uchar* dst = data;
unsigned short* dst16 = (unsigned short*)data;
for (y = 0 ; y < (long)imageHeight() ; ++y)
{
for (i = 0 ; i < (long)number_components; ++i)
{
int ret = jas_image_readcmpt(jp2_image, (short)components[i], 0,
((unsigned int) y) / y_step[i],
((unsigned int) imageWidth()) / x_step[i],
1, pixels[i]);
if (ret != 0)
{
kDebug() << "Error decoding JPEG2000 image data";
delete [] data;
jas_image_destroy(jp2_image);
for (i = 0 ; i < (long)number_components ; ++i)
{
jas_matrix_destroy(pixels[i]);
}
jas_cleanup();
loadingFailed();
return false;
}
}
switch (number_components)
{
case 1: // Grayscale.
{
for (x = 0 ; x < (long)imageWidth() ; ++x)
{
dst[0] = (uchar)(scale[0]*jas_matrix_getv(pixels[0], x/x_step[0]));
dst[1] = dst[0];
dst[2] = dst[0];
dst[3] = 0xFF;
dst += 4;
}
break;
}
case 3: // RGB.
{
if (!m_sixteenBit) // 8 bits image.
{
for (x = 0 ; x < (long)imageWidth() ; ++x)
{
// Blue
dst[0] = (uchar)(scale[2]*jas_matrix_getv(pixels[2], x/x_step[2]));
// Green
dst[1] = (uchar)(scale[1]*jas_matrix_getv(pixels[1], x/x_step[1]));
// Red
dst[2] = (uchar)(scale[0]*jas_matrix_getv(pixels[0], x/x_step[0]));
// Alpha
dst[3] = 0xFF;
dst += 4;
}
}
else // 16 bits image.
{
for (x = 0 ; x < (long)imageWidth() ; ++x)
{
// Blue
dst16[0] = (unsigned short)(scale[2]*jas_matrix_getv(pixels[2], x/x_step[2]));
// Green
dst16[1] = (unsigned short)(scale[1]*jas_matrix_getv(pixels[1], x/x_step[1]));
// Red
dst16[2] = (unsigned short)(scale[0]*jas_matrix_getv(pixels[0], x/x_step[0]));
// Alpha
dst16[3] = 0xFFFF;
dst16 += 4;
}
}
break;
}
case 4: // RGBA.
{
if (!m_sixteenBit) // 8 bits image.
{
for (x = 0 ; x < (long)imageWidth() ; ++x)
{
// Blue
dst[0] = (uchar)(scale[2] * jas_matrix_getv(pixels[2], x/x_step[2]));
// Green
dst[1] = (uchar)(scale[1] * jas_matrix_getv(pixels[1], x/x_step[1]));
// Red
dst[2] = (uchar)(scale[0] * jas_matrix_getv(pixels[0], x/x_step[0]));
// Alpha
dst[3] = (uchar)(scale[3] * jas_matrix_getv(pixels[3], x/x_step[3]));
dst += 4;
}
}
else // 16 bits image.
{
for (x = 0 ; x < (long)imageWidth() ; ++x)
{
// Blue
dst16[0] = (unsigned short)(scale[2]*jas_matrix_getv(pixels[2], x/x_step[2]));
// Green
dst16[1] = (unsigned short)(scale[1]*jas_matrix_getv(pixels[1], x/x_step[1]));
// Red
dst16[2] = (unsigned short)(scale[0]*jas_matrix_getv(pixels[0], x/x_step[0]));
// Alpha
dst16[3] = (unsigned short)(scale[3]*jas_matrix_getv(pixels[3], x/x_step[3]));
dst16 += 4;
}
}
break;
}
}
// use 0-10% and 90-100% for pseudo-progress
if (observer && y >= (long)checkPoint)
{
checkPoint += granularity(observer, y, 0.8F);
if (!observer->continueQuery(m_image))
{
delete [] data;
jas_image_destroy(jp2_image);
for (i = 0 ; i < (long)number_components ; ++i)
{
jas_matrix_destroy(pixels[i]);
}
jas_cleanup();
loadingFailed();
return false;
}
observer->progressInfo(m_image, 0.1 + (0.8 * ( ((float)y)/((float)imageHeight()) )));
}
}
}
// -------------------------------------------------------------------
// Get ICC color profile.
if (m_loadFlags & LoadICCData)
{
jas_iccprof_t* icc_profile = 0;
jas_stream_t* icc_stream = 0;
jas_cmprof_t* cm_profile = 0;
cm_profile = jas_image_cmprof(jp2_image);
if (cm_profile != 0)
{
icc_profile = jas_iccprof_createfromcmprof(cm_profile);
}
if (icc_profile != 0)
{
icc_stream = jas_stream_memopen(NULL, 0);
if (icc_stream != 0)
{
if (jas_iccprof_save(icc_profile, icc_stream) == 0)
{
if (jas_stream_flush(icc_stream) == 0)
{
jas_stream_memobj_t* blob = (jas_stream_memobj_t*) icc_stream->obj_;
QByteArray profile_rawdata;
profile_rawdata.resize(blob->len_);
memcpy(profile_rawdata.data(), blob->buf_, blob->len_);
imageSetIccProfile(profile_rawdata);
jas_stream_close(icc_stream);
}
}
}
}
}
if (observer)
{
observer->progressInfo(m_image, 1.0);
}
imageData() = data;
imageSetAttribute("format", "JP2K");
imageSetAttribute("originalColorModel", colorModel);
imageSetAttribute("originalBitDepth", maximum_component_depth);
imageSetAttribute("originalSize", QSize(imageWidth(), imageHeight()));
jas_image_destroy(jp2_image);
for (i = 0 ; i < (long)number_components ; ++i)
{
jas_matrix_destroy(pixels[i]);
}
jas_cleanup();
return true;
}
int main(int argc, char **argv)
{
char *origpath;
char *reconpath;
int verbose;
char *metricname;
int metric;
int id;
jas_image_t *origimage;
jas_image_t *reconimage;
jas_matrix_t *origdata;
jas_matrix_t *recondata;
jas_image_t *diffimage;
jas_stream_t *diffstream;
int width;
int height;
int depth;
int numcomps;
double d;
double maxdist;
double mindist;
int compno;
jas_stream_t *origstream;
jas_stream_t *reconstream;
char *diffpath;
int maxonly;
int minonly;
int fmtid;
verbose = 0;
origpath = 0;
reconpath = 0;
metricname = 0;
metric = metricid_none;
diffpath = 0;
maxonly = 0;
minonly = 0;
if (jas_init()) {
errprint(0, "error: cannot initialize jasper library\n");
abort();
}
/* set our error callback */
jas_set_error_cb(errprint);
cmdname = argv[0];
/* Parse the command line options. */
while ((id = jas_getopt(argc, argv, opts)) >= 0) {
switch (id) {
case OPT_MAXONLY:
maxonly = 1;
break;
case OPT_MINONLY:
minonly = 1;
break;
case OPT_METRIC:
metricname = jas_optarg;
break;
case OPT_ORIG:
origpath = jas_optarg;
break;
case OPT_RECON:
reconpath = jas_optarg;
break;
case OPT_VERBOSE:
verbose = 1;
break;
case OPT_DIFFIMAGE:
diffpath = jas_optarg;
break;
case OPT_VERSION:
printf("%s\n", JAS_VERSION);
exit(EXIT_SUCCESS);
break;
case OPT_HELP:
default:
usage();
break;
}
}
if (verbose) {
cmdinfo();
}
/* Ensure that files are given for both the original and reconstructed
images. */
if (!origpath || !reconpath) {
usage();
}
/* If a metric was specified, process it. */
if (metricname) {
if ((metric = (jas_taginfo_nonull(jas_taginfos_lookup(metrictab,
metricname))->id)) < 0) {
usage();
}
}
/* Open the original image file. */
if (!(origstream = jas_stream_fopen(origpath, "rb"))) {
jas_eprintf("cannot open %s\n", origpath);
return EXIT_FAILURE;
}
/* Open the reconstructed image file. */
if (!(reconstream = jas_stream_fopen(reconpath, "rb"))) {
jas_eprintf("cannot open %s\n", reconpath);
return EXIT_FAILURE;
}
/* Decode the original image. */
if (!(origimage = jas_image_decode(origstream, -1, 0))) {
jas_eprintf("cannot load original image\n");
return EXIT_FAILURE;
}
/* Decoder the reconstructed image. */
if (!(reconimage = jas_image_decode(reconstream, -1, 0))) {
jas_eprintf("cannot load reconstructed image\n");
return EXIT_FAILURE;
}
/* Close the original image file. */
jas_stream_close(origstream);
/* Close the reconstructed image file. */
jas_stream_close(reconstream);
/* Ensure that both images have the same number of components. */
numcomps = jas_image_numcmpts(origimage);
if (jas_image_numcmpts(reconimage) != numcomps) {
jas_eprintf("number of components differ\n");
return EXIT_FAILURE;
}
/* Compute the difference for each component. */
maxdist = 0;
mindist = FLT_MAX;
for (compno = 0; compno < numcomps; ++compno) {
width = jas_image_cmptwidth(origimage, compno);
height = jas_image_cmptheight(origimage, compno);
depth = jas_image_cmptprec(origimage, compno);
if (jas_image_cmptwidth(reconimage, compno) != width ||
jas_image_cmptheight(reconimage, compno) != height) {
jas_eprintf("image dimensions differ\n");
return EXIT_FAILURE;
}
if (jas_image_cmptprec(reconimage, compno) != depth) {
jas_eprintf("precisions differ\n");
return EXIT_FAILURE;
}
if (!(origdata = jas_matrix_create(height, width))) {
jas_eprintf("internal error\n");
return EXIT_FAILURE;
}
if (!(recondata = jas_matrix_create(height, width))) {
jas_eprintf("internal error\n");
return EXIT_FAILURE;
}
if (jas_image_readcmpt(origimage, compno, 0, 0, width, height,
origdata)) {
jas_eprintf("cannot read component data\n");
return EXIT_FAILURE;
}
if (jas_image_readcmpt(reconimage, compno, 0, 0, width, height,
recondata)) {
jas_eprintf("cannot read component data\n");
return EXIT_FAILURE;
}
if (diffpath) {
if (!(diffstream = jas_stream_fopen(diffpath, "rwb"))) {
jas_eprintf("cannot open diff stream\n");
return EXIT_FAILURE;
}
if (!(diffimage = makediffimage(origdata, recondata))) {
jas_eprintf("cannot make diff image\n");
return EXIT_FAILURE;
}
fmtid = jas_image_strtofmt("pnm");
if (jas_image_encode(diffimage, diffstream, fmtid, 0)) {
jas_eprintf("cannot save\n");
return EXIT_FAILURE;
}
jas_stream_close(diffstream);
jas_image_destroy(diffimage);
}
if (metric != metricid_none) {
d = getdistortion(origdata, recondata, depth, metric);
if (d > maxdist) {
maxdist = d;
}
if (d < mindist) {
mindist = d;
}
if (!maxonly && !minonly) {
if (metric == metricid_pae || metric == metricid_equal) {
printf("%ld\n", (long) ceil(d));
} else {
printf("%f\n", d);
}
}
}
jas_matrix_destroy(origdata);
jas_matrix_destroy(recondata);
}
if (metric != metricid_none && (maxonly || minonly)) {
if (maxonly) {
d = maxdist;
} else if (minonly) {
d = mindist;
} else {
abort();
}
if (metric == metricid_pae || metric == metricid_equal) {
jas_eprintf("%ld\n", (long) ceil(d));
} else {
jas_eprintf("%f\n", d);
}
}
jas_image_destroy(origimage);
jas_image_destroy(reconimage);
jas_image_clearfmts();
return EXIT_SUCCESS;
}
CPLErr JPEG2000RasterBand::IReadBlock( int nBlockXOff, int nBlockYOff,
void * pImage )
{
int i, j;
// Decode image from the stream, if not yet
if ( !poGDS->DecodeImage() )
{
return CE_Failure;
}
// Now we can calculate the pixel offset of the top left by multiplying
// block offset with the block size.
/* In case the dimensions of the image are not multiple of the block dimensions */
/* take care of not requesting more pixels than available for the blocks at the */
/* right or bottom of the image */
int nWidthToRead = MIN(nBlockXSize, poGDS->nRasterXSize - nBlockXOff * nBlockXSize);
int nHeightToRead = MIN(nBlockYSize, poGDS->nRasterYSize - nBlockYOff * nBlockYSize);
jas_image_readcmpt( poGDS->psImage, nBand - 1,
nBlockXOff * nBlockXSize, nBlockYOff * nBlockYSize,
nWidthToRead, nHeightToRead, psMatrix );
int nWordSize = GDALGetDataTypeSize(eDataType) / 8;
int nLineSize = nBlockXSize * nWordSize;
GByte* ptr = (GByte*)pImage;
/* Pad incomplete blocks at the right or bottom of the image */
if (nWidthToRead != nBlockXSize || nHeightToRead != nBlockYSize)
memset(pImage, 0, nLineSize * nBlockYSize);
for( i = 0; i < nHeightToRead; i++, ptr += nLineSize )
{
for( j = 0; j < nWidthToRead; j++ )
{
// XXX: We need casting because matrix element always
// has 32 bit depth in JasPer
// FIXME: what about float values?
switch( eDataType )
{
case GDT_Int16:
{
((GInt16*)ptr)[j] = (GInt16)jas_matrix_get(psMatrix, i, j);
}
break;
case GDT_Int32:
{
((GInt32*)ptr)[j] = (GInt32)jas_matrix_get(psMatrix, i, j);
}
break;
case GDT_UInt16:
{
((GUInt16*)ptr)[j] = (GUInt16)jas_matrix_get(psMatrix, i, j);
}
break;
case GDT_UInt32:
{
((GUInt32*)ptr)[j] = (GUInt32)jas_matrix_get(psMatrix, i, j);
}
break;
case GDT_Byte:
default:
{
((GByte*)ptr)[j] = (GByte)jas_matrix_get(psMatrix, i, j);
}
break;
}
}
}
return CE_None;
}
// Internal function used to load the Jpeg2000 stream.
ILboolean iLoadJp2Internal(jas_stream_t *Stream, ILimage *Image)
{
jas_image_t *Jp2Image = NULL;
jas_matrix_t *origdata;
ILuint x, y, c, Error;
ILimage *TempImage;
// Decode image
Jp2Image = jas_image_decode(Stream, -1, 0);
if (!Jp2Image)
{
ilSetError(IL_ILLEGAL_FILE_VALUE);
jas_stream_close(Stream);
return IL_FALSE;
}
// JasPer likes to buffer a lot, so it may try buffering past the end
// of the file. iread naturally sets IL_FILE_READ_ERROR if it tries
// reading past the end of the file, but this actually is not an error.
Error = ilGetError();
// Put the error back if it is not IL_FILE_READ_ERROR.
if (Error != IL_FILE_READ_ERROR)
ilSetError(Error);
// We're not supporting anything other than 8 bits/component yet.
if (jas_image_cmptprec(Jp2Image, 0) != 8)
{
jas_image_destroy(Jp2Image);
ilSetError(IL_ILLEGAL_FILE_VALUE);
return IL_FALSE;
}
switch (jas_image_numcmpts(Jp2Image))
{
//@TODO: Can we do alpha data? jas_image_cmpttype always returns 0 for this case.
case 1: // Assuming this is luminance data.
if (Image == NULL) {
ilTexImage(jas_image_width(Jp2Image), jas_image_height(Jp2Image), 1, 1, IL_LUMINANCE, IL_UNSIGNED_BYTE, NULL);
TempImage = iCurImage;
}
else {
ifree(Image->Data); // @TODO: Not really the most efficient way to do this...
ilInitImage(Image, jas_image_width(Jp2Image), jas_image_height(Jp2Image), 1, 1, IL_LUMINANCE, IL_UNSIGNED_BYTE, NULL);
TempImage = Image;
}
break;
case 2: // Assuming this is luminance-alpha data.
if (Image == NULL) {
ilTexImage(jas_image_width(Jp2Image), jas_image_height(Jp2Image), 1, 2, IL_LUMINANCE_ALPHA, IL_UNSIGNED_BYTE, NULL);
TempImage = iCurImage;
}
else {
ifree(Image->Data); // @TODO: Not really the most efficient way to do this...
ilInitImage(Image, jas_image_width(Jp2Image), jas_image_height(Jp2Image), 1, 2, IL_LUMINANCE_ALPHA, IL_UNSIGNED_BYTE, NULL);
TempImage = Image;
}
break;
case 3:
if (Image == NULL) {
ilTexImage(jas_image_width(Jp2Image), jas_image_height(Jp2Image), 1, 3, IL_RGB, IL_UNSIGNED_BYTE, NULL);
TempImage = iCurImage;
}
else {
ifree(Image->Data); // @TODO: Not really the most efficient way to do this...
ilInitImage(Image, jas_image_width(Jp2Image), jas_image_height(Jp2Image), 1, 3, IL_RGB, IL_UNSIGNED_BYTE, NULL);
TempImage = Image;
}
break;
case 4:
if (Image == NULL) {
ilTexImage(jas_image_width(Jp2Image), jas_image_height(Jp2Image), 1, 4, IL_RGBA, IL_UNSIGNED_BYTE, NULL);
TempImage = iCurImage;
}
else {
ifree(Image->Data); // @TODO: Not really the most efficient way to do this...
ilInitImage(Image, jas_image_width(Jp2Image), jas_image_height(Jp2Image), 1, 4, IL_RGBA, IL_UNSIGNED_BYTE, NULL);
TempImage = Image;
}
break;
default:
jas_image_destroy(Jp2Image);
ilSetError(IL_ILLEGAL_FILE_VALUE);
return IL_FALSE;
}
TempImage->Origin = IL_ORIGIN_UPPER_LEFT;
// JasPer stores the data channels separately.
// I am assuming RGBA format. Is it possible for other formats to be included?
for (c = 0; c < TempImage->Bpp; c++)
{
origdata = jas_matrix_create(TempImage->Height, TempImage->Width);
if (!origdata)
{
ilSetError(IL_LIB_JP2_ERROR);
return IL_FALSE; // @TODO: Error
}
// Have to convert data into an intermediate matrix format.
if (jas_image_readcmpt(Jp2Image, c, 0, 0, TempImage->Width, TempImage->Height, origdata))
{
return IL_FALSE;
}
for (y = 0; y < TempImage->Height; y++)
{
for (x = 0; x < TempImage->Width; x++)
{
TempImage->Data[y * TempImage->Width * TempImage->Bpp + x * TempImage->Bpp + c] = origdata->data_[y * origdata->numcols_ + x];
}
}
jas_matrix_destroy(origdata);
}
jas_image_destroy(Jp2Image);
return ilFixImage();
}
