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PIKApp/plug-ins/common/file-jp2-load.c

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/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* file-jp2.c -- JPEG 2000 file format plug-in
* Copyright (C) 2009 Aurimas Juška <aurimas.juska@gmail.com>
* Copyright (C) 2004 Florian Traverse <florian.traverse@cpe.fr>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
/*
* Portions of this plug-in code (color conversion, etc.) were imported
* from the OpenJPEG project covered under the following GNU GPL
* compatible license:
*
* The copyright in this software is being made available under the 2-clauses
* BSD License, included below. This software may be subject to other third
* party and contributor rights, including patent rights, and no such rights
* are granted under this license.
*
* Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2014, Professor Benoit Macq
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2007, Francois-Olivier Devaux
* Copyright (c) 2003-2014, Antonin Descampe
* Copyright (c) 2005, Herve Drolon, FreeImage Team
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <glib/gstdio.h>
#ifdef G_OS_WIN32
#include <io.h>
#endif
#ifndef _O_BINARY
#define _O_BINARY 0
#endif
#include <libpika/pika.h>
#include <libpika/pikaui.h>
#include "libpika/stdplugins-intl.h"
#include <openjpeg.h>
#define LOAD_JP2_PROC "file-jp2-load"
#define LOAD_J2K_PROC "file-j2k-load"
#define PLUG_IN_BINARY "file-jp2-load"
#define PLUG_IN_ROLE "pika-file-jp2-load"
typedef struct _Jp2 Jp2;
typedef struct _Jp2Class Jp2Class;
struct _Jp2
{
PikaPlugIn parent_instance;
};
struct _Jp2Class
{
PikaPlugInClass parent_class;
};
#define JP2_TYPE (jp2_get_type ())
#define JP2 (obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), JP2_TYPE, Jp2))
GType jp2_get_type (void) G_GNUC_CONST;
static GList * jp2_query_procedures (PikaPlugIn *plug_in);
static PikaProcedure * jp2_create_procedure (PikaPlugIn *plug_in,
const gchar *name);
static PikaValueArray * jp2_load (PikaProcedure *procedure,
PikaRunMode run_mode,
GFile *file,
PikaMetadata *metadata,
PikaMetadataLoadFlags *flags,
PikaProcedureConfig *config,
gpointer run_data);
static PikaImage * load_image (PikaProcedure *procedure,
GObject *config,
GFile *file,
OPJ_CODEC_FORMAT format,
OPJ_COLOR_SPACE color_space,
gboolean interactive,
gboolean *profile_loaded,
GError **error);
static OPJ_COLOR_SPACE open_dialog (PikaProcedure *procedure,
GObject *config,
GFile *file,
OPJ_CODEC_FORMAT format,
gint num_components,
GError **error);
G_DEFINE_TYPE (Jp2, jp2, PIKA_TYPE_PLUG_IN)
PIKA_MAIN (JP2_TYPE)
DEFINE_STD_SET_I18N
static void
jp2_class_init (Jp2Class *klass)
{
PikaPlugInClass *plug_in_class = PIKA_PLUG_IN_CLASS (klass);
plug_in_class->query_procedures = jp2_query_procedures;
plug_in_class->create_procedure = jp2_create_procedure;
plug_in_class->set_i18n = STD_SET_I18N;
}
static void
jp2_init (Jp2 *jp2)
{
}
static GList *
jp2_query_procedures (PikaPlugIn *plug_in)
{
GList *list = NULL;
list = g_list_append (list, g_strdup (LOAD_JP2_PROC));
list = g_list_append (list, g_strdup (LOAD_J2K_PROC));
return list;
}
static PikaProcedure *
jp2_create_procedure (PikaPlugIn *plug_in,
const gchar *name)
{
PikaProcedure *procedure = NULL;
if (! strcmp (name, LOAD_JP2_PROC))
{
procedure = pika_load_procedure_new (plug_in, name,
PIKA_PDB_PROC_TYPE_PLUGIN,
jp2_load, NULL, NULL);
pika_procedure_set_menu_label (procedure, _("JPEG 2000 image"));
pika_file_procedure_set_format_name (PIKA_FILE_PROCEDURE (procedure),
_("JPEG 2000"));
pika_procedure_set_documentation (procedure,
"Loads JPEG 2000 images.",
"The JPEG 2000 image loader.",
name);
pika_procedure_set_attribution (procedure,
"Aurimas Juška",
"Aurimas Juška, Florian Traverse",
"2009");
pika_file_procedure_set_mime_types (PIKA_FILE_PROCEDURE (procedure),
"image/jp2");
pika_file_procedure_set_extensions (PIKA_FILE_PROCEDURE (procedure),
"jp2");
/* XXX: more complete magic number would be:
* "0,string,\x00\x00\x00\x0C\x6A\x50\x20\x20\x0D\x0A\x87\x0A"
* But the '\0' character makes problem in a 0-terminated string
* obviously, as well as some other space characters, it would
* seem. The below smaller version seems ok and not interfering
* with other formats.
*/
pika_file_procedure_set_magics (PIKA_FILE_PROCEDURE (procedure),
"3,string,\x0CjP");
}
else if (! strcmp (name, LOAD_J2K_PROC))
{
procedure = pika_load_procedure_new (plug_in, name,
PIKA_PDB_PROC_TYPE_PLUGIN,
jp2_load, NULL, NULL);
pika_procedure_set_menu_label (procedure, _("JPEG 2000 codestream"));
pika_file_procedure_set_format_name (PIKA_FILE_PROCEDURE (procedure),
_("JPEG 2000"));
pika_procedure_set_documentation (procedure,
_("Loads JPEG 2000 codestream."),
_("Loads JPEG 2000 codestream. "
"If the color space is set to "
"UNKNOWN (0), we will try to guess, "
"which is only possible for few "
"spaces (such as grayscale). Most "
"such calls will fail. You are rather "
"expected to know the color space of "
"your data."),
name);
pika_procedure_set_attribution (procedure,
"Jehan",
"Jehan",
"2009");
pika_file_procedure_set_mime_types (PIKA_FILE_PROCEDURE (procedure),
"image/x-jp2-codestream");
pika_file_procedure_set_extensions (PIKA_FILE_PROCEDURE (procedure),
"j2k,j2c,jpc");
PIKA_PROC_ARG_INT (procedure, "colorspace",
_("Color s_pace"),
_("Color space { UNKNOWN (0), GRAYSCALE (1), RGB (2), "
"CMYK (3), YCbCr (4), xvYCC (5) }"),
0, 5, 0,
G_PARAM_READWRITE);
}
return procedure;
}
static PikaValueArray *
jp2_load (PikaProcedure *procedure,
PikaRunMode run_mode,
GFile *file,
PikaMetadata *metadata,
PikaMetadataLoadFlags *flags,
PikaProcedureConfig *config,
gpointer run_data)
{
PikaValueArray *return_vals;
PikaImage *image = NULL;
OPJ_COLOR_SPACE color_space = OPJ_CLRSPC_UNKNOWN;
gboolean interactive;
gboolean profile_loaded = FALSE;
PikaPDBStatusType status = PIKA_PDB_SUCCESS;
GError *error = NULL;
gegl_init (NULL, NULL);
switch (run_mode)
{
case PIKA_RUN_INTERACTIVE:
pika_ui_init (PLUG_IN_BINARY);
interactive = TRUE;
break;
default:
if (! strcmp (pika_procedure_get_name (procedure), LOAD_J2K_PROC))
{
gint color_space_argument = 0;
g_object_get (config,
"colorspace", &color_space_argument,
NULL);
/* Order is not the same as OpenJPEG enum on purpose,
* since it's better to not rely on a given order or
* on enum values.
*/
switch (color_space_argument)
{
case 1:
color_space = OPJ_CLRSPC_GRAY;
break;
case 2:
color_space = OPJ_CLRSPC_SRGB;
break;
case 3:
color_space = OPJ_CLRSPC_CMYK;
break;
case 4:
color_space = OPJ_CLRSPC_SYCC;
break;
case 5:
color_space = OPJ_CLRSPC_EYCC;
break;
default:
break;
}
}
interactive = FALSE;
break;
}
if (! strcmp (pika_procedure_get_name (procedure), LOAD_JP2_PROC))
{
image = load_image (procedure, G_OBJECT (config), file, OPJ_CODEC_JP2,
color_space, interactive, &profile_loaded,
&error);
}
else
{
image = load_image (procedure, G_OBJECT (config), file, OPJ_CODEC_J2K,
color_space, interactive, &profile_loaded,
&error);
}
if (! image)
{
status = error ? PIKA_PDB_EXECUTION_ERROR : PIKA_PDB_CANCEL;
return pika_procedure_new_return_values (procedure, status, error);
}
if (profile_loaded)
*flags &= ~PIKA_METADATA_LOAD_COLORSPACE;
return_vals = pika_procedure_new_return_values (procedure,
PIKA_PDB_SUCCESS,
NULL);
PIKA_VALUES_SET_IMAGE (return_vals, 1, image);
return return_vals;
}
static void
sycc_to_rgb (int offset,
int upb,
int y,
int cb,
int cr,
int *out_r,
int *out_g,
int *out_b)
{
int r, g, b;
cb -= offset;
cr -= offset;
r = y + (int) (1.402 * (float) cr);
if (r < 0)
r = 0;
else if (r > upb)
r = upb;
*out_r = r;
g = y - (int) (0.344 * (float) cb + 0.714 * (float) cr);
if (g < 0)
g = 0;
else if (g > upb)
g = upb;
*out_g = g;
b = y + (int) (1.772 * (float) cb);
if (b < 0)
b = 0;
else if (b > upb)
b = upb;
*out_b = b;
}
static gboolean
sycc420_to_rgb (opj_image_t *img)
{
int *d0, *d1, *d2, *r, *g, *b, *nr, *ng, *nb;
const int *y, *cb, *cr, *ny;
size_t maxw, maxh, max, offx, loopmaxw, offy, loopmaxh;
int offset, upb;
size_t i;
upb = (int) img->comps[0].prec;
offset = 1 << (upb - 1);
upb = (1 << upb) - 1;
maxw = (size_t) img->comps[0].w;
maxh = (size_t) img->comps[0].h;
max = maxw * maxh;
y = img->comps[0].data;
cb = img->comps[1].data;
cr = img->comps[2].data;
d0 = r = (int *) malloc (sizeof (int) * max);
d1 = g = (int *) malloc (sizeof (int) * max);
d2 = b = (int *) malloc (sizeof (int) * max);
if (r == NULL || g == NULL || b == NULL)
{
g_warning ("malloc() failed in sycc420_to_rgb()");
goto out;
}
/* if img->x0 is odd, then first column shall use Cb/Cr = 0 */
offx = img->x0 & 1U;
loopmaxw = maxw - offx;
/* if img->y0 is odd, then first line shall use Cb/Cr = 0 */
offy = img->y0 & 1U;
loopmaxh = maxh - offy;
if (offy > 0U)
{
size_t j;
for (j = 0; j < maxw; ++j)
{
sycc_to_rgb (offset, upb, *y, 0, 0, r, g, b);
++y;
++r;
++g;
++b;
}
}
for (i = 0U; i < (loopmaxh & ~(size_t) 1U); i += 2U)
{
size_t j;
ny = y + maxw;
nr = r + maxw;
ng = g + maxw;
nb = b + maxw;
if (offx > 0U)
{
sycc_to_rgb (offset, upb, *y, 0, 0, r, g, b);
++y;
++r;
++g;
++b;
sycc_to_rgb (offset, upb, *ny, *cb, *cr, nr, ng, nb);
++ny;
++nr;
++ng;
++nb;
}
for (j = 0; j < (loopmaxw & ~(size_t) 1U); j += 2U)
{
sycc_to_rgb (offset, upb, *y, *cb, *cr, r, g, b);
++y;
++r;
++g;
++b;
sycc_to_rgb (offset, upb, *y, *cb, *cr, r, g, b);
++y;
++r;
++g;
++b;
sycc_to_rgb (offset, upb, *ny, *cb, *cr, nr, ng, nb);
++ny;
++nr;
++ng;
++nb;
sycc_to_rgb (offset, upb, *ny, *cb, *cr, nr, ng, nb);
++ny;
++nr;
++ng;
++nb;
++cb;
++cr;
}
if (j < loopmaxw)
{
sycc_to_rgb (offset, upb, *y, *cb, *cr, r, g, b);
++y;
++r;
++g;
++b;
sycc_to_rgb (offset, upb, *ny, *cb, *cr, nr, ng, nb);
++ny;
++nr;
++ng;
++nb;
++cb;
++cr;
}
y += maxw;
r += maxw;
g += maxw;
b += maxw;
}
if (i < loopmaxh)
{
size_t j;
for (j = 0U; j < (maxw & ~(size_t) 1U); j += 2U)
{
sycc_to_rgb (offset, upb, *y, *cb, *cr, r, g, b);
++y;
++r;
++g;
++b;
sycc_to_rgb (offset, upb, *y, *cb, *cr, r, g, b);
++y;
++r;
++g;
++b;
++cb;
++cr;
}
if (j < maxw)
{
sycc_to_rgb (offset, upb, *y, *cb, *cr, r, g, b);
}
}
free (img->comps[0].data);
img->comps[0].data = d0;
free (img->comps[1].data);
img->comps[1].data = d1;
free (img->comps[2].data);
img->comps[2].data = d2;
img->comps[1].w = img->comps[2].w = img->comps[0].w;
img->comps[1].h = img->comps[2].h = img->comps[0].h;
img->comps[1].dx = img->comps[2].dx = img->comps[0].dx;
img->comps[1].dy = img->comps[2].dy = img->comps[0].dy;
img->color_space = OPJ_CLRSPC_SRGB;
return TRUE;
out:
free (r);
free (g);
free (b);
return FALSE;
}
static gboolean
sycc422_to_rgb (opj_image_t *img)
{
int *d0, *d1, *d2, *r, *g, *b;
const int *y, *cb, *cr;
size_t maxw, maxh, max, offx, loopmaxw;
int offset, upb;
size_t i;
upb = (int) img->comps[0].prec;
offset = 1 <<(upb - 1);
upb = (1 << upb) - 1;
maxw = (size_t) img->comps[0].w;
maxh = (size_t) img->comps[0].h;
max = maxw * maxh;
y = img->comps[0].data;
cb = img->comps[1].data;
cr = img->comps[2].data;
d0 = r = (int *) malloc (sizeof (int) * max);
d1 = g = (int *) malloc (sizeof (int) * max);
d2 = b = (int *) malloc (sizeof (int) * max);
if (r == NULL || g == NULL || b == NULL)
{
g_warning ("malloc() failed in sycc422_to_rgb()");
goto out;
}
/* if img->x0 is odd, then first column shall use Cb/Cr = 0 */
offx = img->x0 & 1U;
loopmaxw = maxw - offx;
for (i = 0U; i < maxh; ++i)
{
size_t j;
if (offx > 0U)
{
sycc_to_rgb (offset, upb, *y, 0, 0, r, g, b);
++y;
++r;
++g;
++b;
}
for (j = 0U; j < (loopmaxw & ~(size_t) 1U); j += 2U)
{
sycc_to_rgb (offset, upb, *y, *cb, *cr, r, g, b);
++y;
++r;
++g;
++b;
sycc_to_rgb (offset, upb, *y, *cb, *cr, r, g, b);
++y;
++r;
++g;
++b;
++cb;
++cr;
}
if (j < loopmaxw)
{
sycc_to_rgb (offset, upb, *y, *cb, *cr, r, g, b);
++y;
++r;
++g;
++b;
++cb;
++cr;
}
}
free (img->comps[0].data);
img->comps[0].data = d0;
free (img->comps[1].data);
img->comps[1].data = d1;
free (img->comps[2].data);
img->comps[2].data = d2;
img->comps[1].w = img->comps[2].w = img->comps[0].w;
img->comps[1].h = img->comps[2].h = img->comps[0].h;
img->comps[1].dx = img->comps[2].dx = img->comps[0].dx;
img->comps[1].dy = img->comps[2].dy = img->comps[0].dy;
img->color_space = OPJ_CLRSPC_SRGB;
return (TRUE);
out:
free (r);
free (g);
free (b);
return (FALSE);
}
static gboolean
sycc444_to_rgb (opj_image_t *img)
{
int *d0, *d1, *d2, *r, *g, *b;
const int *y, *cb, *cr;
size_t maxw, maxh, max, i;
int offset, upb;
upb = (int) img->comps[0].prec;
offset = 1 << (upb - 1);
upb = (1 << upb) - 1;
maxw = (size_t) img->comps[0].w;
maxh = (size_t) img->comps[0].h;
max = maxw * maxh;
y = img->comps[0].data;
cb = img->comps[1].data;
cr = img->comps[2].data;
d0 = r = (int *) malloc(sizeof (int) * max);
d1 = g = (int *) malloc(sizeof (int) * max);
d2 = b = (int *) malloc(sizeof (int) * max);
if (r == NULL || g == NULL || b == NULL)
{
g_warning ("malloc() failed in sycc444_to_rgb()");
goto out;
}
for (i = 0U; i < max; ++i)
{
sycc_to_rgb (offset, upb, *y, *cb, *cr, r, g, b);
++y;
++cb;
++cr;
++r;
++g;
++b;
}
free (img->comps[0].data);
img->comps[0].data = d0;
free (img->comps[1].data);
img->comps[1].data = d1;
free (img->comps[2].data);
img->comps[2].data = d2;
img->color_space = OPJ_CLRSPC_SRGB;
return TRUE;
out:
free (r);
free (g);
free (b);
return FALSE;
}
static gboolean
color_sycc_to_rgb (opj_image_t *img)
{
if (img->numcomps < 3)
{
img->color_space = OPJ_CLRSPC_GRAY;
return TRUE;
}
else if ((img->comps[0].dx == 1) &&
(img->comps[1].dx == 2) &&
(img->comps[2].dx == 2) &&
(img->comps[0].dy == 1) &&
(img->comps[1].dy == 2) &&
(img->comps[2].dy == 2))
{
/* horizontal and vertical sub-sample */
return sycc420_to_rgb (img);
}
else if ((img->comps[0].dx == 1) &&
(img->comps[1].dx == 2) &&
(img->comps[2].dx == 2) &&
(img->comps[0].dy == 1) &&
(img->comps[1].dy == 1) &&
(img->comps[2].dy == 1))
{
/* horizontal sub-sample only */
return sycc422_to_rgb (img);
}
else if ((img->comps[0].dx == 1) &&
(img->comps[1].dx == 1) &&
(img->comps[2].dx == 1) &&
(img->comps[0].dy == 1) &&
(img->comps[1].dy == 1) &&
(img->comps[2].dy == 1))
{
/* no sub-sample */
return sycc444_to_rgb (img);
}
else
{
g_warning ("Cannot convert in color_sycc_to_rgb()");
return FALSE;
}
}
static gboolean
color_cmyk_to_rgb (opj_image_t *image)
{
float C, M, Y, K;
float sC, sM, sY, sK;
unsigned int w, h, max, i;
w = image->comps[0].w;
h = image->comps[0].h;
if ((image->numcomps < 4) ||
(image->comps[0].dx != image->comps[1].dx) ||
(image->comps[0].dx != image->comps[2].dx) ||
(image->comps[0].dx != image->comps[3].dx) ||
(image->comps[0].dy != image->comps[1].dy) ||
(image->comps[0].dy != image->comps[2].dy) ||
(image->comps[0].dy != image->comps[3].dy))
{
g_warning ("Cannot convert in color_cmyk_to_rgb()");
return FALSE;
}
max = w * h;
sC = 1.0f / (float) ((1 << image->comps[0].prec) - 1);
sM = 1.0f / (float) ((1 << image->comps[1].prec) - 1);
sY = 1.0f / (float) ((1 << image->comps[2].prec) - 1);
sK = 1.0f / (float) ((1 << image->comps[3].prec) - 1);
for (i = 0; i < max; ++i)
{
/* CMYK values from 0 to 1 */
C = (float) (image->comps[0].data[i]) * sC;
M = (float) (image->comps[1].data[i]) * sM;
Y = (float) (image->comps[2].data[i]) * sY;
K = (float) (image->comps[3].data[i]) * sK;
/* Invert all CMYK values */
C = 1.0f - C;
M = 1.0f - M;
Y = 1.0f - Y;
K = 1.0f - K;
/* CMYK -> RGB : RGB results from 0 to 255 */
image->comps[0].data[i] = (int) (255.0f * C * K); /* R */
image->comps[1].data[i] = (int) (255.0f * M * K); /* G */
image->comps[2].data[i] = (int) (255.0f * Y * K); /* B */
}
free (image->comps[3].data);
image->comps[3].data = NULL;
image->comps[0].prec = 8;
image->comps[1].prec = 8;
image->comps[2].prec = 8;
image->numcomps -= 1;
image->color_space = OPJ_CLRSPC_SRGB;
for (i = 3; i < image->numcomps; ++i)
{
memcpy(&(image->comps[i]), &(image->comps[i + 1]),
sizeof (image->comps[i]));
}
return TRUE;
}
/*
* This code has been adopted from sjpx_openjpeg.c of ghostscript
*/
static gboolean
color_esycc_to_rgb (opj_image_t *image)
{
int y, cb, cr, sign1, sign2, val;
unsigned int w, h, max, i;
int flip_value;
int max_value;
flip_value = (1 << (image->comps[0].prec - 1));
max_value = (1 << image->comps[0].prec) - 1;
if ((image->numcomps < 3) ||
(image->comps[0].dx != image->comps[1].dx) ||
(image->comps[0].dx != image->comps[2].dx) ||
(image->comps[0].dy != image->comps[1].dy) ||
(image->comps[0].dy != image->comps[2].dy))
{
g_warning ("Cannot convert in color_esycc_to_rgb()");
return FALSE;
}
w = image->comps[0].w;
h = image->comps[0].h;
sign1 = (int)image->comps[1].sgnd;
sign2 = (int)image->comps[2].sgnd;
max = w * h;
for (i = 0; i < max; ++i)
{
y = image->comps[0].data[i];
cb = image->comps[1].data[i];
cr = image->comps[2].data[i];
if (! sign1)
cb -= flip_value;
if (! sign2)
cr -= flip_value;
val = (int) ((float) y - (float) 0.0000368 *
(float) cb + (float) 1.40199 * (float) cr + (float) 0.5);
if (val > max_value)
val = max_value;
else if (val < 0)
val = 0;
image->comps[0].data[i] = val;
val = (int) ((float) 1.0003 * (float) y - (float) 0.344125 *
(float) cb - (float) 0.7141128 * (float) cr + (float) 0.5);
if (val > max_value)
val = max_value;
else if(val < 0)
val = 0;
image->comps[1].data[i] = val;
val = (int) ((float) 0.999823 * (float) y + (float) 1.77204 *
(float) cb - (float) 0.000008 * (float) cr + (float) 0.5);
if (val > max_value)
val = max_value;
else if (val < 0)
val = 0;
image->comps[2].data[i] = val;
}
image->color_space = OPJ_CLRSPC_SRGB;
return TRUE;
}
/*
* get_valid_precision() converts given precision to standard precision
* of pika i.e. 8, 16, 32
* e.g 12-bit to 16-bit , 24-bit to 32-bit
*/
static gint
get_valid_precision (gint precision_actual)
{
if (precision_actual <= 8)
return 8;
else if (precision_actual <= 16)
return 16;
else
return 32;
}
static PikaPrecision
get_image_precision (gint precision,
gboolean linear)
{
switch (precision)
{
case 32:
if (linear)
return PIKA_PRECISION_U32_LINEAR;
return PIKA_PRECISION_U32_NON_LINEAR;
case 16:
if (linear)
return PIKA_PRECISION_U16_LINEAR;
return PIKA_PRECISION_U16_NON_LINEAR;
default:
if (linear)
return PIKA_PRECISION_U8_LINEAR;
return PIKA_PRECISION_U8_NON_LINEAR;
}
}
static OPJ_COLOR_SPACE
open_dialog (PikaProcedure *procedure,
GObject *config,
GFile *file,
OPJ_CODEC_FORMAT format,
gint num_components,
GError **error)
{
const gchar *title;
GtkWidget *dialog;
GtkListStore *store = NULL;
gboolean run;
OPJ_COLOR_SPACE color_space = OPJ_CLRSPC_SRGB;
if (format == OPJ_CODEC_J2K)
/* Not having color information is expected. */
title = "Opening JPEG 2000 codestream";
else
/* Unexpected, but let's be a bit flexible and ask. */
title = "JPEG 2000 image with no color space";
pika_ui_init (PLUG_IN_BINARY);
dialog = pika_procedure_dialog_new (procedure,
PIKA_PROCEDURE_CONFIG (config),
_(title));
pika_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
if (num_components == 3)
{
/* Can be RGB, YUV and YCC. */
store = pika_int_store_new (_("sRGB"), OPJ_CLRSPC_SRGB,
_("YCbCr"), OPJ_CLRSPC_SYCC,
_("xvYCC"), OPJ_CLRSPC_EYCC,
NULL);
}
else if (num_components == 4)
{
/* Can be RGB, YUV and YCC with alpha or CMYK. */
store = pika_int_store_new (_("sRGB"), OPJ_CLRSPC_SRGB,
_("YCbCr"), OPJ_CLRSPC_SYCC,
_("xvYCC"), OPJ_CLRSPC_EYCC,
_("CMYK"), OPJ_CLRSPC_CMYK,
NULL);
}
else
{
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
_("Unsupported JPEG 2000%s '%s' with %d components."),
(format == OPJ_CODEC_J2K) ? " codestream" : "",
pika_file_get_utf8_name (file), num_components);
color_space = OPJ_CLRSPC_UNKNOWN;
}
if (store)
{
pika_procedure_dialog_get_int_combo (PIKA_PROCEDURE_DIALOG (dialog),
"colorspace", PIKA_INT_STORE (store));
/* By default, RGB is active. */
g_object_set (config,
"colorspace", color_space,
NULL);
pika_procedure_dialog_fill (PIKA_PROCEDURE_DIALOG (dialog),
NULL);
gtk_widget_show (dialog);
run = pika_procedure_dialog_run (PIKA_PROCEDURE_DIALOG (dialog));
if (! run)
/* Do not set an error here. The import was simply canceled.
* No error occurred. */
color_space = OPJ_CLRSPC_UNKNOWN;
else
g_object_get (config,
"colorspace", &color_space,
NULL);
}
gtk_widget_destroy (dialog);
return color_space;
}
static PikaImage *
load_image (PikaProcedure *procedure,
GObject *config,
GFile *file,
OPJ_CODEC_FORMAT format,
OPJ_COLOR_SPACE color_space,
gboolean interactive,
gboolean *profile_loaded,
GError **error)
{
opj_stream_t *stream = NULL;
opj_codec_t *codec = NULL;
opj_dparameters_t parameters;
opj_image_t *image = NULL;
PikaColorProfile *profile = NULL;
PikaImage *pika_image = NULL;
PikaLayer *layer;
PikaImageType image_type;
PikaImageBaseType base_type;
gint width;
gint height;
gint num_components;
GeglBuffer *buffer;
gint i, j, k, it;
guchar *pixels;
const Babl *file_format;
gint bpp;
PikaPrecision image_precision;
gint precision_actual, precision_scaled;
gint temp;
gboolean linear = FALSE;
unsigned char *c = NULL;
gint n_threads;
pika_progress_init_printf (_("Opening '%s'"),
pika_file_get_utf8_name (file));
stream = opj_stream_create_default_file_stream (g_file_peek_path (file), OPJ_TRUE);
if (! stream)
{
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
_("Could not open '%s' for reading"),
pika_file_get_utf8_name (file));
goto out;
}
codec = opj_create_decompress (format);
if (! codec)
{
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
_("Failed to initialize decoder for '%s', out of memory?"),
pika_file_get_utf8_name (file));
goto out;
}
n_threads = pika_get_num_processors ();
if (n_threads >= 2 && ! opj_codec_set_threads (codec, n_threads))
{
g_warning ("Couldn't set number of threads on decoder for '%s'.",
pika_file_get_utf8_name (file));
}
opj_set_default_decoder_parameters (&parameters);
if (opj_setup_decoder (codec, &parameters) != OPJ_TRUE)
{
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
_("Couldn't set parameters on decoder for '%s'."),
pika_file_get_utf8_name (file));
goto out;
}
if (opj_read_header (stream, codec, &image) != OPJ_TRUE)
{
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
_("Couldn't read JP2 header from '%s'."),
pika_file_get_utf8_name (file));
goto out;
}
if (opj_decode (codec, stream, image) != OPJ_TRUE)
{
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
_("Couldn't decode JP2 image in '%s'."),
pika_file_get_utf8_name (file));
goto out;
}
if (opj_end_decompress (codec, stream) != OPJ_TRUE)
{
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
_("Couldn't decompress JP2 image in '%s'."),
pika_file_get_utf8_name (file));
goto out;
}
if (image->icc_profile_buf)
{
if (image->icc_profile_len)
{
profile = pika_color_profile_new_from_icc_profile (image->icc_profile_buf,
image->icc_profile_len,
error);
if (! profile)
goto out;
*profile_loaded = TRUE;
if (image->color_space == OPJ_CLRSPC_UNSPECIFIED ||
image->color_space == OPJ_CLRSPC_UNKNOWN)
{
if (pika_color_profile_is_rgb (profile))
image->color_space = OPJ_CLRSPC_SRGB;
else if (pika_color_profile_is_gray (profile))
image->color_space = OPJ_CLRSPC_GRAY;
else if (pika_color_profile_is_cmyk (profile))
image->color_space = OPJ_CLRSPC_CMYK;
}
}
else
{
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
_("Couldn't decode CIELAB JP2 image in '%s'."),
pika_file_get_utf8_name (file));
goto out;
}
free (image->icc_profile_buf);
image->icc_profile_buf = NULL;
image->icc_profile_len = 0;
}
num_components = image->numcomps;
if ((image->color_space == OPJ_CLRSPC_UNSPECIFIED ||
image->color_space == OPJ_CLRSPC_UNKNOWN) && ! interactive)
image->color_space = color_space;
if (image->color_space == OPJ_CLRSPC_UNSPECIFIED ||
image->color_space == OPJ_CLRSPC_UNKNOWN)
{
/* Sometimes the color space is not set at this point, which
* sucks. This happens always with codestream images (.j2c or
* .j2k) which are meant to be embedded by other files.
*
* It might also happen with JP2 in case the header does not have
* color space and the ICC profile is absent (though this may mean
* that the JP2 is broken, but let's be flexible and allow manual
* fallback).
* Assuming RGB/RGBA space is bogus since this format can handle
* so much more. Therefore we instead pop-up a dialog asking one
* to specify the color space in interactive mode.
*/
if (num_components == 1 || num_components == 2)
{
/* Only possibility is gray. */
image->color_space = OPJ_CLRSPC_GRAY;
}
else if (num_components == 5)
{
/* Can only be CMYK with Alpha. */
image->color_space = OPJ_CLRSPC_CMYK;
}
else if (interactive)
{
image->color_space = open_dialog (procedure, config, file, format,
num_components, error);
if (image->color_space == OPJ_CLRSPC_UNKNOWN)
goto out;
}
else /* ! interactive */
{
/* API call where color space was set to UNKNOWN. We don't
* want to guess or assume anything. It is much better to just
* fail. It is the responsibility of the developer to know its
* data when loading it in a script.
*/
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
_("Unknown color space in JP2 codestream '%s'."),
pika_file_get_utf8_name (file));
goto out;
}
}
if (image->color_space == OPJ_CLRSPC_SYCC)
{
if (! color_sycc_to_rgb (image))
{
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
_("Couldn't convert YCbCr JP2 image '%s' to RGB."),
pika_file_get_utf8_name (file));
goto out;
}
}
else if ((image->color_space == OPJ_CLRSPC_CMYK))
{
if (! color_cmyk_to_rgb (image))
{
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
_("Couldn't convert CMYK JP2 image in '%s' to RGB."),
pika_file_get_utf8_name (file));
goto out;
}
}
else if (image->color_space == OPJ_CLRSPC_EYCC)
{
if (! color_esycc_to_rgb (image))
{
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
_("Couldn't convert xvYCC JP2 image in '%s' to RGB."),
pika_file_get_utf8_name (file));
goto out;
}
}
/* At this point, the image should be converted to Gray or RGB. */
if (image->color_space == OPJ_CLRSPC_GRAY)
{
base_type = PIKA_GRAY;
image_type = PIKA_GRAY_IMAGE;
if (num_components == 2)
image_type = PIKA_GRAYA_IMAGE;
}
else if (image->color_space == OPJ_CLRSPC_SRGB)
{
base_type = PIKA_RGB;
image_type = PIKA_RGB_IMAGE;
if (num_components == 4)
image_type = PIKA_RGBA_IMAGE;
}
else
{
/* If not gray or RGB, this is an image we cannot handle. */
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
_("Unsupported color space in JP2 image '%s'."),
pika_file_get_utf8_name (file));
goto out;
}
width = image->comps[0].w;
height = image->comps[0].h;
if (profile)
linear = pika_color_profile_is_linear (profile);
precision_actual = image->comps[0].prec;
precision_scaled = get_valid_precision (precision_actual);
image_precision = get_image_precision (precision_scaled, linear);
pika_image = pika_image_new_with_precision (width, height,
base_type, image_precision);
if (profile)
pika_image_set_color_profile (pika_image, profile);
layer = pika_layer_new (pika_image,
_("Background"),
width, height,
image_type,
100,
pika_image_get_default_new_layer_mode (pika_image));
pika_image_insert_layer (pika_image, layer, NULL, 0);
file_format = pika_drawable_get_format (PIKA_DRAWABLE (layer));
bpp = babl_format_get_bytes_per_pixel (file_format);
buffer = pika_drawable_get_buffer (PIKA_DRAWABLE (layer));
pixels = g_new0 (guchar, width * bpp);
for (i = 0; i < height; i++)
{
for (j = 0; j < num_components; j++)
{
int shift = precision_scaled - precision_actual;
for (k = 0; k < width; k++)
{
if (shift >= 0)
temp = image->comps[j].data[i * width + k] << shift;
else /* precision_actual > 32 */
temp = image->comps[j].data[i * width + k] >> (- shift);
c = (unsigned char *) &temp;
for (it = 0; it < (precision_scaled / 8); it++)
{
pixels[k * bpp + j * (precision_scaled / 8) + it] = c[it];
}
}
}
gegl_buffer_set (buffer, GEGL_RECTANGLE (0, i, width, 1), 0,
file_format, pixels, GEGL_AUTO_ROWSTRIDE);
}
g_free (pixels);
g_object_unref (buffer);
pika_progress_update (1.0);
out:
if (profile)
g_object_unref (profile);
if (image)
opj_image_destroy (image);
if (codec)
opj_destroy_codec (codec);
if (stream)
opj_stream_destroy (stream);
return pika_image;
}
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