/* initialize the steam.
this involves allocating the stream and image structures, and
initializing the decoder.
*/
static int
s_jpxd_init(stream_state * ss)
{
stream_jpxd_state *const state = (stream_jpxd_state *) ss;
int status = 0;
if (state->jpx_memory == NULL) {
state->jpx_memory = ss->memory->non_gc_memory;
}
status = jas_init();
#ifdef JPX_DEBUG
/* raise the error reporting threshold from the default (0) */
jas_setdbglevel(1);
#endif
if (!status) {
state->buffer = gs_malloc(state->jpx_memory, 4096, 1, "JPXDecode temp buffer");
status = (state->buffer == NULL);
}
if (!status)
state->bufsize = 4096;
return status;
}
int
main(int argc, char **argv)
{
struct cmdlineInfo cmdline;
struct pam outpam;
int * jasperCmpt; /* malloc'ed */
/* jaspercmpt[P] is the component number for use with the
Jasper library that corresponds to Plane P of the PAM.
*/
jas_image_t * jasperP;
pnm_init(&argc, argv);
parseCommandLine(argc, argv, &cmdline);
{
int rc;
rc = jas_init();
if ( rc != 0 )
pm_error("Failed to initialize Jasper library. "
"jas_init() returns rc %d", rc );
}
jas_setdbglevel(cmdline.debuglevel);
readJpc(cmdline.inputFilename, &jasperP);
outpam.file = stdout;
outpam.size = sizeof(outpam);
outpam.len = PAM_STRUCT_SIZE(tuple_type);
computeOutputParm(jasperP, &outpam, &jasperCmpt);
pnm_writepaminit(&outpam);
convertToPamPnm(&outpam, jasperP, jasperCmpt);
free(jasperCmpt);
jas_image_destroy(jasperP);
pm_close(stdout);
return 0;
}
int
main(int argc, char **argv)
{
struct cmdlineInfo cmdline;
FILE *ifP;
struct pam inpam;
jas_image_t * jasperP;
pnm_init(&argc, argv);
parseCommandLine(argc, argv, &cmdline);
{
int rc;
rc = jas_init();
if ( rc != 0 )
pm_error("Failed to initialize Jasper library. "
"jas_init() returns rc %d", rc );
}
jas_setdbglevel(cmdline.debuglevel);
ifP = pm_openr(cmdline.inputFilename);
pnm_readpaminit(ifP, &inpam, PAM_STRUCT_SIZE(tuple_type));
convertToJasperImage(&inpam, &jasperP);
writeJpc(jasperP, cmdline, stdout);
jas_image_destroy(jasperP);
pm_close(ifP);
pm_close(stdout);
return 0;
}
int main(int argc, char **argv)
{
jas_image_t *image;
cmdopts_t *cmdopts;
jas_stream_t *in;
jas_stream_t *out;
clock_t startclk;
clock_t endclk;
long dectime;
long enctime;
int_fast16_t numcmpts;
int i;
/* Determine the base name of this command. */
if ((cmdname = strrchr(argv[0], '/'))) {
++cmdname;
} else {
cmdname = argv[0];
}
if (jas_init()) {
errprint(0, "error: cannot initialize jasper library\n");
abort();
}
/* set our error callback */
jas_set_error_cb(errprint);
/* Parse the command line options. */
if (!(cmdopts = cmdopts_parse(argc, argv))) {
jas_eprintf("error: cannot parse command line\n");
exit(EXIT_FAILURE);
}
if (cmdopts->version) {
jas_eprintf("%s\n", JAS_VERSION);
jas_eprintf("libjasper %s\n", jas_getversion());
exit(EXIT_SUCCESS);
}
jas_setdbglevel(cmdopts->debug);
if (cmdopts->verbose) {
cmdinfo();
}
/* Open the input image file. */
if (cmdopts->infile) {
/* The input image is to be read from a file. */
if (!(in = jas_stream_fopen(cmdopts->infile, "rb"))) {
jas_eprintf("error: cannot open input image file %s\n",
cmdopts->infile);
exit(EXIT_FAILURE);
}
} else {
/* The input image is to be read from standard input. */
if (!(in = jas_stream_fdopen(0, "rb"))) {
jas_eprintf("error: cannot open standard input\n");
exit(EXIT_FAILURE);
}
}
/* Open the output image file. */
if (cmdopts->outfile) {
/* The output image is to be written to a file. */
if (!(out = jas_stream_fopen(cmdopts->outfile, "w+b"))) {
jas_eprintf("error: cannot open output image file %s\n",
cmdopts->outfile);
exit(EXIT_FAILURE);
}
} else {
/* The output image is to be written to standard output. */
if (!(out = jas_stream_fdopen(1, "w+b"))) {
jas_eprintf("error: cannot open standard output\n");
exit(EXIT_FAILURE);
}
}
if (cmdopts->infmt < 0) {
if ((cmdopts->infmt = jas_image_getfmt(in)) < 0) {
jas_eprintf("error: input image has unknown format\n");
exit(EXIT_FAILURE);
}
}
/* Get the input image data. */
startclk = clock();
if (!(image = jas_image_decode(in, cmdopts->infmt, cmdopts->inopts))) {
jas_eprintf("error: cannot load image data\n");
exit(EXIT_FAILURE);
}
endclk = clock();
dectime = endclk - startclk;
/* If requested, throw away all of the components except one.
Why might this be desirable? It is a hack, really.
None of the image formats other than the JPEG-2000 ones support
images with two, four, five, or more components. This hack
allows such images to be decoded with the non-JPEG-2000 decoders,
one component at a time. */
numcmpts = jas_image_numcmpts(image);
if (cmdopts->cmptno >= 0 && cmdopts->cmptno < numcmpts) {
for (i = numcmpts - 1; i >= 0; --i) {
if (i != cmdopts->cmptno) {
jas_image_delcmpt(image, i);
}
}
}
if (cmdopts->srgb) {
jas_image_t *newimage;
jas_cmprof_t *outprof;
jas_eprintf("forcing conversion to sRGB\n");
if (!(outprof = jas_cmprof_createfromclrspc(JAS_CLRSPC_SRGB))) {
jas_eprintf("cannot create sRGB profile\n");
exit(EXIT_FAILURE);
}
if (!(newimage = jas_image_chclrspc(image, outprof, JAS_CMXFORM_INTENT_PER))) {
jas_eprintf("cannot convert to sRGB\n");
exit(EXIT_FAILURE);
}
jas_image_destroy(image);
jas_cmprof_destroy(outprof);
image = newimage;
}
/* Generate the output image data. */
startclk = clock();
if (jas_image_encode(image, out, cmdopts->outfmt, cmdopts->outopts)) {
jas_eprintf("error: cannot encode image\n");
exit(EXIT_FAILURE);
}
jas_stream_flush(out);
endclk = clock();
enctime = endclk - startclk;
if (cmdopts->verbose) {
jas_eprintf("decoding time = %f\n", dectime / (double)
CLOCKS_PER_SEC);
jas_eprintf("encoding time = %f\n", enctime / (double)
CLOCKS_PER_SEC);
}
/* If this fails, we don't care. */
(void) jas_stream_close(in);
/* Close the output image stream. */
if (jas_stream_close(out)) {
jas_eprintf("error: cannot close output image file\n");
exit(EXIT_FAILURE);
}
cmdopts_destroy(cmdopts);
jas_image_destroy(image);
jas_image_clearfmts();
/* Success at last! :-) */
return EXIT_SUCCESS;
}
