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| -rw-r--r-- | plug-ins/common/file-jp2-load.c | 1344 |
1 files changed, 1344 insertions, 0 deletions
diff --git a/plug-ins/common/file-jp2-load.c b/plug-ins/common/file-jp2-load.c new file mode 100644 index 0000000..9ab43b5 --- /dev/null +++ b/plug-ins/common/file-jp2-load.c @@ -0,0 +1,1344 @@ +/* GIMP - The GNU Image Manipulation Program + * 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 <libgimp/gimp.h> +#include <libgimp/gimpui.h> + +#include "libgimp/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 "gimp-file-jp2-load" + + +static void query (void); +static void run (const gchar *name, + gint nparams, + const GimpParam *param, + gint *nreturn_vals, + GimpParam **return_vals); +static gint32 load_image (const gchar *filename, + OPJ_CODEC_FORMAT format, + OPJ_COLOR_SPACE color_space, + gboolean interactive, + gboolean *profile_loaded, + GError **error); + +static OPJ_COLOR_SPACE open_dialog (const gchar *filename, + OPJ_CODEC_FORMAT format, + gint num_components, + GError **error); + +const GimpPlugInInfo PLUG_IN_INFO = +{ + NULL, /* init_proc */ + NULL, /* quit_proc */ + query, /* query proc */ + run, /* run_proc */ +}; + + +MAIN () + +static void +query (void) +{ + static const GimpParamDef jp2_load_args[] = + { + { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" }, + { GIMP_PDB_STRING, "filename", "The name of the file to load." }, + { GIMP_PDB_STRING, "raw-filename", "The name entered" }, + }; + + static const GimpParamDef j2k_load_args[] = + { + { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" }, + { GIMP_PDB_STRING, "filename", "The name of the file to load." }, + { GIMP_PDB_STRING, "raw-filename", "The name entered" }, + { GIMP_PDB_INT32, "colorspace", "Color space { UNKNOWN (0), GRAYSCALE (1), RGB (2), CMYK (3), YCbCr (4), xvYCC (5) }" }, + }; + + static const GimpParamDef load_return_vals[] = + { + { GIMP_PDB_IMAGE, "image", "Output image" } + }; + + gimp_install_procedure (LOAD_JP2_PROC, + "Loads JPEG 2000 images.", + "The JPEG 2000 image loader.", + "Mukund Sivaraman", + "Mukund Sivaraman", + "2009", + N_("JPEG 2000 image"), + NULL, + GIMP_PLUGIN, + G_N_ELEMENTS (jp2_load_args), + G_N_ELEMENTS (load_return_vals), + jp2_load_args, load_return_vals); + /* + * 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. + */ + gimp_register_magic_load_handler (LOAD_JP2_PROC, + "jp2", + "", + "3,string,\x0CjP"); + gimp_register_file_handler_mime (LOAD_JP2_PROC, "image/jp2"); + + gimp_install_procedure (LOAD_J2K_PROC, + "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.", + "Jehan", + "Jehan", + "2009", + N_("JPEG 2000 codestream"), + NULL, + GIMP_PLUGIN, + G_N_ELEMENTS (j2k_load_args), + G_N_ELEMENTS (load_return_vals), + j2k_load_args, load_return_vals); + gimp_register_magic_load_handler (LOAD_J2K_PROC, + "j2k,j2c,jpc", + "", + "0,string,\xff\x4f\xff\x51\x00"); + gimp_register_file_handler_mime (LOAD_J2K_PROC, "image/x-jp2-codestream"); +} + +static void +run (const gchar *name, + gint nparams, + const GimpParam *param, + gint *nreturn_vals, + GimpParam **return_vals) +{ + static GimpParam values[2]; + GimpRunMode run_mode; + GimpPDBStatusType status = GIMP_PDB_SUCCESS; + gint image_ID; + gboolean profile_loaded = FALSE; + GError *error = NULL; + + run_mode = param[0].data.d_int32; + + INIT_I18N (); + gegl_init (NULL, NULL); + + *nreturn_vals = 1; + *return_vals = values; + + values[0].type = GIMP_PDB_STATUS; + values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR; + + if (strcmp (name, LOAD_JP2_PROC) == 0 || + strcmp (name, LOAD_J2K_PROC) == 0) + { + OPJ_COLOR_SPACE color_space = OPJ_CLRSPC_UNKNOWN; + gboolean interactive; + + switch (run_mode) + { + case GIMP_RUN_INTERACTIVE: + case GIMP_RUN_WITH_LAST_VALS: + gimp_ui_init (PLUG_IN_BINARY, FALSE); + interactive = TRUE; + break; + + default: + if (strcmp (name, LOAD_J2K_PROC) == 0) + { + /* 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 (param[3].data.d_int32) + { + 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: + /* Stays unknown. */ + break; + } + } + interactive = FALSE; + break; + } + + if (strcmp (name, LOAD_JP2_PROC) == 0) + { + image_ID = load_image (param[1].data.d_string, OPJ_CODEC_JP2, + color_space, interactive, &profile_loaded, + &error); + } + else /* strcmp (name, LOAD_J2K_PROC) == 0 */ + { + image_ID = load_image (param[1].data.d_string, OPJ_CODEC_J2K, + color_space, interactive, &profile_loaded, + &error); + } + + if (image_ID != -1) + { + GFile *file = g_file_new_for_path (param[1].data.d_string); + GimpMetadata *metadata; + + metadata = gimp_image_metadata_load_prepare (image_ID, "image/jp2", + file, NULL); + + if (metadata) + { + GimpMetadataLoadFlags flags = GIMP_METADATA_LOAD_ALL; + + if (profile_loaded) + flags &= ~GIMP_METADATA_LOAD_COLORSPACE; + + gimp_image_metadata_load_finish (image_ID, "image/jp2", + metadata, flags, + interactive); + + g_object_unref (metadata); + } + + g_object_unref (file); + + *nreturn_vals = 2; + values[1].type = GIMP_PDB_IMAGE; + values[1].data.d_image = image_ID; + } + else if (error) + { + status = GIMP_PDB_EXECUTION_ERROR; + } + else + { + status = GIMP_PDB_CANCEL; + } + } + else + { + status = GIMP_PDB_CALLING_ERROR; + } + + if (status != GIMP_PDB_SUCCESS && error) + { + *nreturn_vals = 2; + values[1].type = GIMP_PDB_STRING; + values[1].data.d_string = error->message; + } + + values[0].data.d_status = status; +} + +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 gimp 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 GimpPrecision +get_image_precision (gint precision, + gboolean linear) +{ + switch (precision) + { + case 32: + if (linear) + return GIMP_PRECISION_U32_LINEAR; + return GIMP_PRECISION_U32_GAMMA; + case 16: + if (linear) + return GIMP_PRECISION_U16_LINEAR; + return GIMP_PRECISION_U16_GAMMA; + default: + if (linear) + return GIMP_PRECISION_U8_LINEAR; + return GIMP_PRECISION_U8_GAMMA; + } +} + +static OPJ_COLOR_SPACE +open_dialog (const gchar *filename, + OPJ_CODEC_FORMAT format, + gint num_components, + GError **error) +{ + const gchar *title; + GtkWidget *dialog; + GtkWidget *main_vbox; + GtkWidget *table; + GtkWidget *combo = NULL; + 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"; + + gimp_ui_init (PLUG_IN_BINARY, TRUE); + + dialog = gimp_dialog_new (title, PLUG_IN_ROLE, + NULL, 0, + gimp_standard_help_func, + (format == OPJ_CODEC_J2K) ? LOAD_J2K_PROC : LOAD_JP2_PROC, + _("_Cancel"), GTK_RESPONSE_CANCEL, + _("_Open"), GTK_RESPONSE_OK, + + NULL); + + gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog), + GTK_RESPONSE_OK, + GTK_RESPONSE_CANCEL, + -1); + + main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12); + gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12); + gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))), + main_vbox, TRUE, TRUE, 0); + gtk_widget_show (main_vbox); + + table = gtk_table_new (4, 3, FALSE); + gtk_table_set_col_spacings (GTK_TABLE (table), 6); + gtk_table_set_row_spacings (GTK_TABLE (table), 4); + gtk_container_add (GTK_CONTAINER (main_vbox), table); + gtk_widget_show (table); + + if (num_components == 3) + { + /* Can be RGB, YUV and YCC. */ + combo = gimp_int_combo_box_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. */ + combo = gimp_int_combo_box_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" : "", + gimp_filename_to_utf8 (filename), num_components); + color_space = OPJ_CLRSPC_UNKNOWN; + } + + if (combo) + { + gimp_table_attach_aligned (GTK_TABLE (table), 0, 0, + _("Color space:"), 0.0, 0.5, + combo, 2, FALSE); + gtk_widget_show (combo); + + g_signal_connect (combo, "changed", + G_CALLBACK (gimp_int_combo_box_get_active), + &color_space); + + /* By default, RGB is active. */ + gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (combo), OPJ_CLRSPC_SRGB); + + gtk_widget_show (dialog); + + if (gimp_dialog_run (GIMP_DIALOG (dialog)) != GTK_RESPONSE_OK) + { + /* Do not set an error here. The import was simply canceled. + * No error occurred. */ + color_space = OPJ_CLRSPC_UNKNOWN; + } + } + + gtk_widget_destroy (dialog); + + return color_space; +} + +static gint32 +load_image (const gchar *filename, + OPJ_CODEC_FORMAT format, + OPJ_COLOR_SPACE color_space, + gboolean interactive, + gboolean *profile_loaded, + GError **error) +{ + opj_stream_t *stream; + opj_codec_t *codec; + opj_dparameters_t parameters; + opj_image_t *image; + GimpColorProfile *profile; + gint32 image_ID; + gint32 layer_ID; + GimpImageType image_type; + GimpImageBaseType base_type; + gint width; + gint height; + gint num_components; + GeglBuffer *buffer; + gint i, j, k, it; + guchar *pixels; + const Babl *file_format; + gint bpp; + GimpPrecision image_precision; + gint precision_actual, precision_scaled; + gint temp; + gboolean linear; + unsigned char *c; + + stream = NULL; + codec = NULL; + image = NULL; + profile = NULL; + image_ID = -1; + linear = FALSE; + c = NULL; + + gimp_progress_init_printf (_("Opening '%s'"), + gimp_filename_to_utf8 (filename)); + + stream = opj_stream_create_default_file_stream (filename, OPJ_TRUE); + if (! stream) + { + g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED, + _("Could not open '%s' for reading"), + gimp_filename_to_utf8 (filename)); + goto out; + } + + codec = opj_create_decompress (format); + + opj_set_default_decoder_parameters (¶meters); + if (opj_setup_decoder (codec, ¶meters) != OPJ_TRUE) + { + g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED, + _("Couldn't set parameters on decoder for '%s'."), + gimp_filename_to_utf8 (filename)); + 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'."), + gimp_filename_to_utf8 (filename)); + 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'."), + gimp_filename_to_utf8 (filename)); + 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'."), + gimp_filename_to_utf8 (filename)); + goto out; + } + + if (image->icc_profile_buf) + { + if (image->icc_profile_len) + { + profile = gimp_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 (gimp_color_profile_is_rgb (profile)) + image->color_space = OPJ_CLRSPC_SRGB; + else if (gimp_color_profile_is_gray (profile)) + image->color_space = OPJ_CLRSPC_GRAY; + else if (gimp_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'."), + gimp_filename_to_utf8 (filename)); + 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 (filename, 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'."), + gimp_filename_to_utf8 (filename)); + 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."), + gimp_filename_to_utf8 (filename)); + 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."), + gimp_filename_to_utf8 (filename)); + 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."), + gimp_filename_to_utf8 (filename)); + goto out; + } + } + + /* At this point, the image should be converted to Gray or RGB. */ + if (image->color_space == OPJ_CLRSPC_GRAY) + { + base_type = GIMP_GRAY; + image_type = GIMP_GRAY_IMAGE; + + if (num_components == 2) + image_type = GIMP_GRAYA_IMAGE; + } + else if (image->color_space == OPJ_CLRSPC_SRGB) + { + base_type = GIMP_RGB; + image_type = GIMP_RGB_IMAGE; + + if (num_components == 4) + image_type = GIMP_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'."), + gimp_filename_to_utf8 (filename)); + goto out; + } + + width = image->comps[0].w; + height = image->comps[0].h; + + if (profile) + linear = gimp_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); + + image_ID = gimp_image_new_with_precision (width, height, + base_type, image_precision); + + gimp_image_set_filename (image_ID, filename); + + if (profile) + gimp_image_set_color_profile (image_ID, profile); + + layer_ID = gimp_layer_new (image_ID, + _("Background"), + width, height, + image_type, + 100, + gimp_image_get_default_new_layer_mode (image_ID)); + gimp_image_insert_layer (image_ID, layer_ID, -1, 0); + + file_format = gimp_drawable_get_format (layer_ID); + bpp = babl_format_get_bytes_per_pixel (file_format); + + buffer = gimp_drawable_get_buffer (layer_ID); + 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); + gimp_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 image_ID; +} |