generic-library/openjpeg
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OPJViewer opens now BMP, PNG, GIF, PNM, TIFF (with wxWidgets internals); added an encoder settings tab, for future integration with "save file as..." in JPEG 2000 format

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This commit is contained in:
Giuseppe Baruffa
2007-06-03 17:34:46 +00:00
parent 814bab6900
commit adc1aacb60
8 changed files with 897 additions and 346 deletions
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150
OPJViewer/source/imagj2k.cpp
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@@ -85,27 +85,41 @@ void j2k_error_callback(const char *msg, void *client_data) {
int message_len = strlen(msg) - 1;
if (msg[message_len] != '\n')
message_len = MAX_MESSAGE_LEN;
#ifndef __WXGTK__
wxMutexGuiEnter();
#endif /* __WXGTK__ */
wxLogMessage(wxT("[ERROR] %.*s"), message_len, msg);
#ifndef __WXGTK__
wxMutexGuiLeave();
#endif /* __WXGTK__ */
}
/* sample warning callback expecting a FILE* client object */
void j2k_warning_callback(const char *msg, void *client_data) {
int message_len = strlen(msg) - 1;
if (msg[message_len] != '\n')
message_len = MAX_MESSAGE_LEN;
#ifndef __WXGTK__
wxMutexGuiEnter();
#endif /* __WXGTK__ */
wxLogMessage(wxT("[WARNING] %.*s"), message_len, msg);
#ifndef __WXGTK__
wxMutexGuiLeave();
#endif /* __WXGTK__ */
}
/* sample debug callback expecting no client object */
void j2k_info_callback(const char *msg, void *client_data) {
int message_len = strlen(msg) - 1;
if (msg[message_len] != '\n')
message_len = MAX_MESSAGE_LEN;
#ifndef __WXGTK__
wxMutexGuiEnter();
#endif /* __WXGTK__ */
wxLogMessage(wxT("[INFO] %.*s"), message_len, msg);
#ifndef __WXGTK__
wxMutexGuiLeave();
#endif /* __WXGTK__ */
}
// load the j2k codestream
@@ -117,8 +131,6 @@ bool wxJ2KHandler::LoadFile(wxImage *image, wxInputStream& stream, bool verbose,
unsigned char *src = NULL;
unsigned char *ptr;
int file_length;
int shiftbpp;
int c, tempcomps;
// destroy the image
image->Destroy();
@@ -146,8 +158,6 @@ bool wxJ2KHandler::LoadFile(wxImage *image, wxInputStream& stream, bool verbose,
parameters.cp_reduce = m_reducefactor;
if (m_qualitylayers)
parameters.cp_layer = m_qualitylayers;
/*if (n_components)
parameters. = n_components;*/
/* JPWL only */
#ifdef USE_JPWL
@@ -180,9 +190,13 @@ bool wxJ2KHandler::LoadFile(wxImage *image, wxInputStream& stream, bool verbose,
/* decode the stream and fill the image structure */
opjimage = opj_decode(dinfo, cio);
if (!opjimage) {
#ifndef __WXGTK__
wxMutexGuiEnter();
#endif /* __WXGTK__ */
wxLogError(wxT("J2K: failed to decode image!"));
#ifndef __WXGTK__
wxMutexGuiLeave();
#endif /* __WXGTK__ */
opj_destroy_decompress(dinfo);
opj_cio_close(cio);
opj_image_destroy(opjimage);
@@ -193,125 +207,16 @@ bool wxJ2KHandler::LoadFile(wxImage *image, wxInputStream& stream, bool verbose,
/* close the byte stream */
opj_cio_close(cio);
// check image components
// check image depth (only on the first one, for now)
shiftbpp = opjimage->comps[0].prec - 8;
// prepare image size
image->Create(opjimage->comps[0].w, opjimage->comps[0].h, true );
// access image raw data
image->SetMask( false );
ptr = image->GetData();
// workaround for components different from 1 or 3
if ((opjimage->numcomps != 1) && (opjimage->numcomps != 3)) {
wxMutexGuiEnter();
wxLogMessage(wxT("J2K: weird number of components"));
tempcomps = 1;
wxMutexGuiLeave();
} else
tempcomps = opjimage->numcomps;
// workaround for subsampled components
for (c = 1; c < tempcomps; c++) {
if ((opjimage->comps[c].w != opjimage->comps[c - 1].w) || (opjimage->comps[c].h != opjimage->comps[c - 1].h)) {
tempcomps = 1;
break;
}
}
// workaround for different precision components
for (c = 1; c < tempcomps; c++) {
if (opjimage->comps[c].bpp != opjimage->comps[c - 1].bpp) {
tempcomps = 1;
break;
}
}
// RGB color picture
if (tempcomps == 3) {
int row, col;
int *r = opjimage->comps[0].data;
int *g = opjimage->comps[1].data;
int *b = opjimage->comps[2].data;
if (shiftbpp > 0) {
for (row = 0; row < opjimage->comps[0].h; row++) {
for (col = 0; col < opjimage->comps[0].w; col++) {
*(ptr++) = (*(r++)) >> shiftbpp;
*(ptr++) = (*(g++)) >> shiftbpp;
*(ptr++) = (*(b++)) >> shiftbpp;
}
}
} else if (shiftbpp < 0) {
for (row = 0; row < opjimage->comps[0].h; row++) {
for (col = 0; col < opjimage->comps[0].w; col++) {
*(ptr++) = (*(r++)) << -shiftbpp;
*(ptr++) = (*(g++)) << -shiftbpp;
*(ptr++) = (*(b++)) << -shiftbpp;
}
}
} else {
for (row = 0; row < opjimage->comps[0].h; row++) {
for (col = 0; col < opjimage->comps[0].w; col++) {
*(ptr++) = *(r++);
*(ptr++) = *(g++);
*(ptr++) = *(b++);
}
}
}
}
// B/W picture
if (tempcomps == 1) {
int row, col;
int *y = opjimage->comps[0].data;
if (shiftbpp > 0) {
for (row = 0; row < opjimage->comps[0].h; row++) {
for (col = 0; col < opjimage->comps[0].w; col++) {
*(ptr++) = (*(y)) >> shiftbpp;
*(ptr++) = (*(y)) >> shiftbpp;
*(ptr++) = (*(y++)) >> shiftbpp;
}
}
} else if (shiftbpp < 0) {
for (row = 0; row < opjimage->comps[0].h; row++) {
for (col = 0; col < opjimage->comps[0].w; col++) {
*(ptr++) = (*(y)) << -shiftbpp;
*(ptr++) = (*(y)) << -shiftbpp;
*(ptr++) = (*(y++)) << -shiftbpp;
}
}
} else {
for (row = 0; row < opjimage->comps[0].h; row++) {
for (col = 0; col < opjimage->comps[0].w; col++) {
*(ptr++) = *(y);
*(ptr++) = *(y);
*(ptr++) = *(y++);
}
}
}
}
/* common rendering method */
#include "imagjpeg2000.cpp"
#ifndef __WXGTK__
wxMutexGuiEnter();
#endif /* __WXGTK__ */
wxLogMessage(wxT("J2K: image loaded."));
#ifndef __WXGTK__
wxMutexGuiLeave();
#endif /* __WXGTK__ */
/* close openjpeg structs */
opj_destroy_decompress(dinfo);
@@ -328,7 +233,14 @@ bool wxJ2KHandler::LoadFile(wxImage *image, wxInputStream& stream, bool verbose,
// save the j2k codestream
bool wxJ2KHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbose )
{
#ifndef __WXGTK__
wxMutexGuiEnter();
#endif /* __WXGTK__ */
wxLogError(wxT("J2K: Couldn't save image -> not implemented."));
#ifndef __WXGTK__
wxMutexGuiLeave();
#endif /* __WXGTK__ */
return false;
}