/* 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
*
* 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 .
*/
#include "config.h"
#include
#include
#include
#include
#include
#include
#include "libpikabase/pikabase.h"
#include "libpikacolor/pikacolor.h"
#include "core-types.h"
#include "config/pikaxmlparser.h"
#include "pika-utils.h"
#include "pikapalette.h"
#include "pikapalette-load.h"
#include "pika-intl.h"
typedef struct
{
PikaColorProfile *profile;
gchar *id;
} SwatchBookerColorProfile;
typedef struct
{
PikaPalette *palette;
gint position;
gchar *palette_name;
gchar *color_model;
gchar *color_space;
GList *embedded_profiles;
gboolean in_color_tag;
gboolean in_book_tag;
gboolean copy_name;
gboolean copy_values;
gint sorted_position;
} SwatchBookerData;
/* SwatchBooker XML parser functions */
static void swatchbooker_load_start_element (GMarkupParseContext *context,
const gchar *element_name,
const gchar **attribute_names,
const gchar **attribute_values,
gpointer user_data,
GError **error);
static void swatchbooker_load_end_element (GMarkupParseContext *context,
const gchar *element_name,
gpointer user_data,
GError **error);
static void swatchbooker_load_text (GMarkupParseContext *context,
const gchar *text,
gsize text_len,
gpointer user_data,
GError **error);
static gchar * pika_palette_load_acb_string (GInputStream *input,
goffset file_size,
GError **error);
static gchar * pika_palette_load_ase_block_name (GInputStream *input,
goffset file_size,
GError **error);
GList *
pika_palette_load (PikaContext *context,
GFile *file,
GInputStream *input,
GError **error)
{
PikaPalette *palette = NULL;
PikaPaletteEntry *entry;
GDataInputStream *data_input;
gchar *str;
gsize str_len;
gchar *tok;
gint r, g, b;
gint linenum;
g_return_val_if_fail (G_IS_FILE (file), NULL);
g_return_val_if_fail (G_IS_INPUT_STREAM (input), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
data_input = g_data_input_stream_new (input);
r = g = b = 0;
linenum = 1;
str_len = 1024;
str = pika_data_input_stream_read_line_always (data_input, &str_len,
NULL, error);
if (! str)
goto failed;
if (! g_str_has_prefix (str, "PIKA Palette"))
{
g_set_error (error, PIKA_DATA_ERROR, PIKA_DATA_ERROR_READ,
_("Missing magic header."));
g_free (str);
goto failed;
}
g_free (str);
palette = g_object_new (PIKA_TYPE_PALETTE,
"mime-type", "application/x-pika-palette",
NULL);
linenum++;
str_len = 1024;
str = pika_data_input_stream_read_line_always (data_input, &str_len,
NULL, error);
if (! str)
goto failed;
if (g_str_has_prefix (str, "Name: "))
{
gchar *utf8;
utf8 = pika_any_to_utf8 (g_strstrip (str + strlen ("Name: ")), -1,
_("Invalid UTF-8 string in palette file '%s'"),
pika_file_get_utf8_name (file));
pika_object_take_name (PIKA_OBJECT (palette), utf8);
g_free (str);
linenum++;
str_len = 1024;
str = pika_data_input_stream_read_line_always (data_input, &str_len,
NULL, error);
if (! str)
goto failed;
if (g_str_has_prefix (str, "Columns: "))
{
gint columns;
if (! pika_ascii_strtoi (g_strstrip (str + strlen ("Columns: ")),
NULL, 10, &columns))
{
g_set_error (error, PIKA_DATA_ERROR, PIKA_DATA_ERROR_READ,
_("Invalid column count."));
g_free (str);
goto failed;
}
if (columns < 0 || columns > 256)
{
g_message (_("Reading palette file '%s': "
"Invalid number of columns in line %d. "
"Using default value."),
pika_file_get_utf8_name (file), linenum);
columns = 0;
}
pika_palette_set_columns (palette, columns);
g_free (str);
linenum++;
str_len = 1024;
str = pika_data_input_stream_read_line_always (data_input, &str_len,
NULL, error);
if (! str)
goto failed;
}
}
else /* old palette format */
{
pika_object_take_name (PIKA_OBJECT (palette),
g_path_get_basename (pika_file_get_utf8_name (file)));
}
while (str)
{
GError *my_error = NULL;
if (str[0] != '#' && str[0] != '\0')
{
tok = strtok (str, " \t");
if (tok)
r = atoi (tok);
else
g_message (_("Reading palette file '%s': "
"Missing RED component in line %d."),
pika_file_get_utf8_name (file), linenum);
tok = strtok (NULL, " \t");
if (tok)
g = atoi (tok);
else
g_message (_("Reading palette file '%s': "
"Missing GREEN component in line %d."),
pika_file_get_utf8_name (file), linenum);
tok = strtok (NULL, " \t");
if (tok)
b = atoi (tok);
else
g_message (_("Reading palette file '%s': "
"Missing BLUE component in line %d."),
pika_file_get_utf8_name (file), linenum);
/* optional name */
tok = strtok (NULL, "\n");
if (r < 0 || r > 255 ||
g < 0 || g > 255 ||
b < 0 || b > 255)
g_message (_("Reading palette file '%s': "
"RGB value out of range in line %d."),
pika_file_get_utf8_name (file), linenum);
/* don't call pika_palette_add_entry here, it's rather inefficient */
entry = g_slice_new0 (PikaPaletteEntry);
pika_rgba_set_uchar (&entry->color,
(guchar) r,
(guchar) g,
(guchar) b,
255);
entry->name = g_strdup (tok ? tok : _("Untitled"));
palette->colors = g_list_prepend (palette->colors, entry);
palette->n_colors++;
}
g_free (str);
linenum++;
str_len = 1024;
str = g_data_input_stream_read_line (data_input, &str_len,
NULL, &my_error);
if (! str && my_error)
{
g_message (_("Reading palette file '%s': "
"Read %d colors from truncated file: %s"),
pika_file_get_utf8_name (file),
g_list_length (palette->colors),
my_error->message);
g_clear_error (&my_error);
}
}
palette->colors = g_list_reverse (palette->colors);
g_object_unref (data_input);
return g_list_prepend (NULL, palette);
failed:
g_object_unref (data_input);
if (palette)
g_object_unref (palette);
g_prefix_error (error, _("In line %d of palette file: "), linenum);
return NULL;
}
GList *
pika_palette_load_act (PikaContext *context,
GFile *file,
GInputStream *input,
GError **error)
{
PikaPalette *palette;
gchar *palette_name;
guchar color_bytes[3];
gsize bytes_read;
g_return_val_if_fail (G_IS_FILE (file), NULL);
g_return_val_if_fail (G_IS_INPUT_STREAM (input), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
palette_name = g_path_get_basename (pika_file_get_utf8_name (file));
palette = PIKA_PALETTE (pika_palette_new (context, palette_name));
g_free (palette_name);
while (g_input_stream_read_all (input, color_bytes, sizeof (color_bytes),
&bytes_read, NULL, NULL) &&
bytes_read == sizeof (color_bytes))
{
PikaRGB color;
pika_rgba_set_uchar (&color,
color_bytes[0],
color_bytes[1],
color_bytes[2],
255);
pika_palette_add_entry (palette, -1, NULL, &color);
}
return g_list_prepend (NULL, palette);
}
GList *
pika_palette_load_riff (PikaContext *context,
GFile *file,
GInputStream *input,
GError **error)
{
PikaPalette *palette;
gchar *palette_name;
guchar color_bytes[4];
gsize bytes_read;
g_return_val_if_fail (G_IS_FILE (file), NULL);
g_return_val_if_fail (G_IS_INPUT_STREAM (input), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
palette_name = g_path_get_basename (pika_file_get_utf8_name (file));
palette = PIKA_PALETTE (pika_palette_new (context, palette_name));
g_free (palette_name);
if (! g_seekable_seek (G_SEEKABLE (input), 28, G_SEEK_SET, NULL, error))
{
g_object_unref (palette);
return NULL;
}
while (g_input_stream_read_all (input, color_bytes, sizeof (color_bytes),
&bytes_read, NULL, NULL) &&
bytes_read == sizeof (color_bytes))
{
PikaRGB color;
pika_rgba_set_uchar (&color,
color_bytes[0],
color_bytes[1],
color_bytes[2],
255);
pika_palette_add_entry (palette, -1, NULL, &color);
}
return g_list_prepend (NULL, palette);
}
GList *
pika_palette_load_psp (PikaContext *context,
GFile *file,
GInputStream *input,
GError **error)
{
PikaPalette *palette;
gchar *palette_name;
guchar color_bytes[4];
gint number_of_colors;
gsize bytes_read;
gint i, j;
gboolean color_ok;
gchar buffer[4096];
/*Maximum valid file size: 256 * 4 * 3 + 256 * 2 ~= 3650 bytes */
gchar **lines;
gchar **ascii_colors;
g_return_val_if_fail (G_IS_FILE (file), NULL);
g_return_val_if_fail (G_IS_INPUT_STREAM (input), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
palette_name = g_path_get_basename (pika_file_get_utf8_name (file));
palette = PIKA_PALETTE (pika_palette_new (context, palette_name));
g_free (palette_name);
if (! g_seekable_seek (G_SEEKABLE (input), 16, G_SEEK_SET, NULL, error))
{
g_object_unref (palette);
return NULL;
}
if (! g_input_stream_read_all (input, buffer, sizeof (buffer) - 1,
&bytes_read, NULL, error))
{
g_object_unref (palette);
return NULL;
}
buffer[bytes_read] = '\0';
lines = g_strsplit (buffer, "\x0d\x0a", -1);
number_of_colors = atoi (lines[0]);
for (i = 0; i < number_of_colors; i++)
{
if (lines[i + 1] == NULL)
{
g_printerr ("Premature end of file reading %s.",
pika_file_get_utf8_name (file));
break;
}
ascii_colors = g_strsplit (lines[i + 1], " ", 3);
color_ok = TRUE;
for (j = 0 ; j < 3; j++)
{
if (ascii_colors[j] == NULL)
{
g_printerr ("Corrupted palette file %s.",
pika_file_get_utf8_name (file));
color_ok = FALSE;
break;
}
color_bytes[j] = atoi (ascii_colors[j]);
}
if (color_ok)
{
PikaRGB color;
pika_rgba_set_uchar (&color,
color_bytes[0],
color_bytes[1],
color_bytes[2],
255);
pika_palette_add_entry (palette, -1, NULL, &color);
}
g_strfreev (ascii_colors);
}
g_strfreev (lines);
return g_list_prepend (NULL, palette);
}
GList *
pika_palette_load_aco (PikaContext *context,
GFile *file,
GInputStream *input,
GError **error)
{
PikaPalette *palette;
gchar *palette_name;
gint format_version;
gint number_of_colors;
gint i;
gchar header[4];
gsize bytes_read;
g_return_val_if_fail (G_IS_FILE (file), NULL);
g_return_val_if_fail (G_IS_INPUT_STREAM (input), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
if (! g_input_stream_read_all (input, header, sizeof (header),
&bytes_read, NULL, error) ||
bytes_read != sizeof (header))
{
g_prefix_error (error,
_("Could not read header from palette file '%s': "),
pika_file_get_utf8_name (file));
return NULL;
}
palette_name = g_path_get_basename (pika_file_get_utf8_name (file));
palette = PIKA_PALETTE (pika_palette_new (context, palette_name));
g_free (palette_name);
format_version = header[1] + (header[0] << 8);
number_of_colors = header[3] + (header[2] << 8);
for (i = 0; i < number_of_colors; i++)
{
gchar color_info[10];
gint color_space;
gint w, x, y, z;
gint xLab;
gint yLab;
void *pixels = NULL;
const Babl *src_format = NULL;
const Babl *dst_format = babl_format ("R'G'B' double");
gboolean color_ok = FALSE;
PikaRGB color;
GError *my_error = NULL;
if (! g_input_stream_read_all (input, color_info, sizeof (color_info),
&bytes_read, NULL, &my_error) ||
bytes_read != sizeof (color_info))
{
if (palette->colors)
{
g_message (_("Reading palette file '%s': "
"Read %d colors from truncated file: %s"),
pika_file_get_utf8_name (file),
g_list_length (palette->colors),
my_error ?
my_error->message : _("Premature end of file."));
g_clear_error (&my_error);
break;
}
g_propagate_error (error, my_error);
g_object_unref (palette);
return NULL;
}
color_space = color_info[1] + (color_info[0] << 8);
w = (guchar) color_info[3] + ((guchar) color_info[2] << 8);
x = (guchar) color_info[5] + ((guchar) color_info[4] << 8);
y = (guchar) color_info[7] + ((guchar) color_info[6] << 8);
z = (guchar) color_info[9] + ((guchar) color_info[8] << 8);
/* Lab-specific values */
xLab = (gint) color_info[5] | ((gint) color_info[4] << 8);
yLab = (gint) color_info[7] | ((gint) color_info[6] << 8);
if (xLab >= 32768)
xLab -= 65536;
if (yLab >= 32768)
yLab -= 65536;
if (color_space == 0) /* RGB */
{
gdouble rgb[3] = { ((gdouble) w) / 65536.0,
((gdouble) x) / 65536.0,
((gdouble) y) / 65536.0 };
src_format = babl_format ("R'G'B' double");
pixels = rgb;
color_ok = TRUE;
}
else if (color_space == 1) /* HSV */
{
gdouble hsv[3] = { ((gdouble) w) / 65536.0,
((gdouble) x) / 65536.0,
((gdouble) y) / 65536.0};
src_format = babl_format ("HSV double");
pixels = hsv;
color_ok = TRUE;
}
else if (color_space == 2) /* CMYK */
{
gdouble cmyk[4] = { 1.0 - ((gdouble) w) / 65536.0,
1.0 - ((gdouble) x) / 65536.0,
1.0 - ((gdouble) y) / 65536.0,
1.0 - ((gdouble) z) / 65536.0 };
src_format = babl_format ("CMYK double");
pixels = cmyk;
color_ok = TRUE;
}
else if (color_space == 7) /* CIE Lab */
{
gdouble lab[3] = { ((gdouble) w) / 10000.0,
((gdouble) xLab) / 25500.0,
((gdouble) yLab) / 25500.0 };
src_format = babl_format ("CIE Lab float");
pixels = lab;
color_ok = TRUE;
}
else if (color_space == 8) /* Grayscale */
{
gdouble k[1] = { 1.0 - (((gdouble) w) / 10000.0) };
src_format = babl_format ("Y' double");
pixels = k;
color_ok = TRUE;
}
else if (color_space == 9) /* Wide? CMYK */
{
gdouble cmyk[4] = { 1.0 - ((gdouble) w) / 10000.0,
1.0 - ((gdouble) x) / 10000.0,
1.0 - ((gdouble) y) / 10000.0,
1.0 - ((gdouble) z) / 10000.0 };
src_format = babl_format ("CMYK double");
pixels = cmyk;
color_ok = TRUE;
}
else
{
g_printerr ("Unsupported color space (%d) in ACO file %s\n",
color_space, pika_file_get_utf8_name (file));
}
if (color_ok)
babl_process (babl_fish (src_format, dst_format), (gdouble *) pixels,
&color, 1);
if (format_version == 2)
{
gchar format2_preamble[4];
gint number_of_chars;
if (! g_input_stream_read_all (input,
format2_preamble,
sizeof (format2_preamble),
&bytes_read, NULL, error) ||
bytes_read != sizeof (format2_preamble))
{
g_object_unref (palette);
return NULL;
}
number_of_chars = format2_preamble[3] + (format2_preamble[2] << 8);
if (! g_seekable_seek (G_SEEKABLE (input), number_of_chars * 2,
G_SEEK_SET, NULL, error))
{
g_object_unref (palette);
return NULL;
}
}
if (color_ok)
pika_palette_add_entry (palette, -1, NULL, &color);
}
return g_list_prepend (NULL, palette);
}
GList *
pika_palette_load_acb (PikaContext *context,
GFile *file,
GInputStream *input,
GError **error)
{
PikaPalette *palette;
gchar header[4];
gshort version;
gchar **palette_strings;
gchar *palette_name;
gchar **palette_prefix;
gchar **palette_suffix;
gchar *description;
gushort number_of_colors;
gushort page;
gushort color_space;
const Babl *src_format = NULL;
const Babl *dst_format = babl_format ("R'G'B' double");
gint i;
goffset file_size;
gsize bytes_read;
g_return_val_if_fail (G_IS_FILE (file), NULL);
g_return_val_if_fail (G_IS_INPUT_STREAM (input), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
/* Get file size */
g_seekable_seek (G_SEEKABLE (input), 0, G_SEEK_END, NULL, error);
file_size = g_seekable_tell (G_SEEKABLE (input));
g_seekable_seek (G_SEEKABLE (input), 0, G_SEEK_SET, NULL, error);
if (! g_input_stream_read_all (input, header, sizeof (header),
&bytes_read, NULL, error) ||
bytes_read != sizeof (header))
{
g_prefix_error (error,
_("Could not read header from palette file '%s': "),
pika_file_get_utf8_name (file));
return NULL;
}
/* Version and ID */
if (! g_input_stream_read_all (input, &version, sizeof (version),
&bytes_read, NULL, error))
{
g_prefix_error (error, _("Invalid ACB palette version."));
return NULL;
}
version = GUINT16_FROM_BE (version);
if (version != 1)
{
g_prefix_error (error, _("PIKA only supports version 1 ACB palettes"));
return NULL;
}
if (! g_input_stream_read_all (input, &version, sizeof (version),
&bytes_read, NULL, error))
{
g_prefix_error (error, _("Invalid ACB palette identifier."));
return NULL;
}
/* Color Book name and palette prefix/suffix */
palette_name = pika_palette_load_acb_string (input, file_size, error);
if (palette_name)
palette_strings = g_strsplit (palette_name, "=", -1);
if (! palette_name || g_strv_length (palette_strings) != 2)
{
if (palette_name)
{
g_strfreev (palette_strings);
g_free (palette_name);
}
g_prefix_error (error, _("Invalid ACB palette name."));
return NULL;
}
palette = PIKA_PALETTE (pika_palette_new (context, palette_strings[1]));
g_strfreev (palette_strings);
g_free (palette_name);
palette_name = pika_palette_load_acb_string (input, file_size, error);
if (palette_name)
palette_prefix = g_strsplit (palette_name, "=", -1);
if (! palette_name || g_strv_length (palette_prefix) != 2)
{
if (palette_name)
{
g_strfreev (palette_prefix);
g_free (palette_name);
}
g_prefix_error (error, _("Invalid ACB palette prefix."));
return NULL;
}
g_free (palette_name);
palette_name = pika_palette_load_acb_string (input, file_size, error);
if (palette_name)
palette_suffix = g_strsplit (palette_name, "=", -1);
if (! palette_name || g_strv_length (palette_suffix) != 2)
{
if (palette_name)
{
g_strfreev (palette_suffix);
g_free (palette_name);
}
g_prefix_error (error, _("Invalid ACB palette suffix."));
return NULL;
}
g_free (palette_name);
/* Description (currently unused) */
description = pika_palette_load_acb_string (input, file_size,
error);
g_free (description);
/* Number of colors */
if (! g_input_stream_read_all (input, &number_of_colors,
sizeof (number_of_colors), &bytes_read, NULL,
error))
{
g_strfreev (palette_prefix);
g_strfreev (palette_suffix);
g_prefix_error (error, _("Invalid number of colors in palette."));
return NULL;
}
number_of_colors = GUINT16_FROM_BE (number_of_colors);
if (number_of_colors <= 1)
{
g_prefix_error (error, _("Invalid number of colors: %s."),
pika_file_get_utf8_name (file));
return NULL;
}
/* Page information (currently unused) */
if (! g_input_stream_read_all (input, &page, sizeof (page),
&bytes_read, NULL, error))
{
g_strfreev (palette_prefix);
g_strfreev (palette_suffix);
g_prefix_error (error, _("Invalid ACB palette page info."));
return NULL;
}
if (! g_input_stream_read_all (input, &page, sizeof (page),
&bytes_read, NULL, error))
{
g_strfreev (palette_prefix);
g_strfreev (palette_suffix);
g_prefix_error (error, _("Invalid ACB palette page info."));
return NULL;
}
/* Color Model */
if (! g_input_stream_read_all (input, &color_space, sizeof (color_space),
&bytes_read, NULL, error))
{
g_strfreev (palette_prefix);
g_strfreev (palette_suffix);
g_prefix_error (error, _("Invalid ACB palette color space."));
return NULL;
}
color_space = GUINT16_FROM_BE (color_space);
if (color_space == 0)
{
src_format = babl_format ("R'G'B' u8");
}
else if (color_space == 2)
{
src_format = babl_format ("cmyk u8");
}
else if (color_space == 7)
{
src_format = babl_format ("CIE Lab u8");
}
else
{
g_strfreev (palette_prefix);
g_strfreev (palette_suffix);
g_prefix_error (error, _("Invalid ACB palette color space."));
return NULL;
}
/* Color records */
for (i = 0; i < number_of_colors; i++)
{
gchar color_code[6];
gchar *palette_entry = NULL;
gchar *full_palette_name = NULL;
void *pixels = NULL;
gboolean color_ok = FALSE;
PikaRGB color;
palette_entry = pika_palette_load_acb_string (input, file_size,
error);
if (palette_entry)
full_palette_name = g_strdup_printf ("%s%s %s", palette_prefix[1],
palette_entry, palette_suffix[1]);
/* Color Code (not used) */
if (! g_input_stream_read_all (input, color_code, sizeof (color_code),
&bytes_read, NULL, error))
{
g_free (palette_entry);
g_free (full_palette_name);
g_printerr ("Invalid ACB palette color code");
break;
}
if (color_space == 0)
{
gchar rgb[3];
if (! g_input_stream_read_all (input, rgb, sizeof (rgb),
&bytes_read, NULL, error))
{
g_free (palette_entry);
g_free (full_palette_name);
g_printerr ("Invalid ACB palette colors");
break;
}
pixels = rgb;
color_ok = TRUE;
}
else if (color_space == 2)
{
gchar cmyk[4];
if (! g_input_stream_read_all (input, cmyk, sizeof (cmyk),
&bytes_read, NULL, error))
{
g_free (palette_entry);
g_free (full_palette_name);
g_printerr ("Invalid ACB palette colors");
break;
}
for (gint j = 0; j < 4; j++)
cmyk[j] = ((255 - cmyk[j]) / 2.55f) + 0.5f;
pixels = cmyk;
color_ok = TRUE;
}
else if (color_space == 7)
{
gchar lab[3];
if (! g_input_stream_read_all (input, lab, sizeof (lab),
&bytes_read, NULL, error))
{
g_free (palette_entry);
g_free (full_palette_name);
g_printerr ("Invalid ACB palette colors");
break;
}
lab[0] = (lab[0] / 2.55f) + 0.5f;
lab[1] = lab[1] - 128;
lab[2] = lab[2] - 128;
pixels = lab;
color_ok = TRUE;
}
if (color_ok && palette_entry)
{
babl_process (babl_fish (src_format, dst_format), (gdouble *) pixels,
&color, 1);
pika_palette_add_entry (palette, -1, full_palette_name, &color);
}
g_free (palette_entry);
g_free (full_palette_name);
if (! color_ok)
{
g_printerr ("Invalid ACB palette colors");
break;
}
}
g_strfreev (palette_prefix);
g_strfreev (palette_suffix);
return g_list_prepend (NULL, palette);
}
static gchar *
pika_palette_load_acb_string (GInputStream *input,
goffset file_size,
GError **error)
{
gint pal_name_len;
gunichar2 *pal_name = NULL;
gchar *pal_name_utf8;
goffset current_pos;
gsize bytes_read;
if (! g_input_stream_read_all (input, &pal_name_len, sizeof (pal_name_len),
&bytes_read, NULL, error))
{
g_printerr (_("Invalid ACB palette name."));
return NULL;
}
pal_name_len = GUINT32_FROM_BE (pal_name_len);
current_pos = g_seekable_tell (G_SEEKABLE (input));
if (pal_name_len <= 0 || pal_name_len > (file_size - current_pos))
{
if (pal_name_len != 0)
g_printerr (_("Invalid ACB name size."));
return NULL;
}
pal_name = g_malloc (pal_name_len * 2);
for (gint i = 0; i < pal_name_len; i++)
{
if (! g_input_stream_read_all (input, &pal_name[i], 2,
&bytes_read, NULL, error))
{
g_printerr (_("Invalid ACB palette name."));
g_free (pal_name);
return NULL;
}
pal_name[i] = GUINT16_FROM_BE (pal_name[i]);
}
pal_name_utf8 = g_utf16_to_utf8 (pal_name, pal_name_len, NULL, NULL, NULL);
g_free (pal_name);
return pal_name_utf8;
}
GList *
pika_palette_load_ase (PikaContext *context,
GFile *file,
GInputStream *input,
GError **error)
{
PikaPalette *palette;
gchar *palette_name;
goffset file_size;
gint num_cols;
gint i;
gchar header[8];
gshort group;
gsize bytes_read;
gboolean skip_first = FALSE;
const Babl *src_format = NULL;
const Babl *dst_format = babl_format ("R'G'B' double");
g_return_val_if_fail (G_IS_FILE (file), NULL);
g_return_val_if_fail (G_IS_INPUT_STREAM (input), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
/* Get file size */
g_seekable_seek (G_SEEKABLE (input), 0, G_SEEK_END, NULL, error);
file_size = g_seekable_tell (G_SEEKABLE (input));
g_seekable_seek (G_SEEKABLE (input), 0, G_SEEK_SET, NULL, error);
if (! g_input_stream_read_all (input, header, sizeof (header),
&bytes_read, NULL, error) ||
bytes_read != sizeof (header))
{
g_prefix_error (error,
_("Could not read header from palette file '%s': "),
pika_file_get_utf8_name (file));
return NULL;
}
/* Checking header values */
if (! g_str_has_prefix (header + 0, "ASEF") ||
header[5] != 0x01)
{
g_prefix_error (error, _("Invalid ASE header: %s"),
pika_file_get_utf8_name (file));
return NULL;
}
if (! g_input_stream_read_all (input, &num_cols, sizeof (num_cols),
&bytes_read, NULL, error))
{
g_prefix_error (error,
_("Invalid number of colors in palette."));
return NULL;
}
num_cols = GINT32_FROM_BE (num_cols);
if (num_cols <= 1)
{
g_prefix_error (error, _("Invalid number of colors: %s."),
pika_file_get_utf8_name (file));
return NULL;
}
/* First block contains the palette name if
* one is defined. */
if (! g_input_stream_read_all (input, &group, sizeof (group),
&bytes_read, NULL, error))
{
g_prefix_error (error, _("Invalid ASE file: %s."),
pika_file_get_utf8_name (file));
return NULL;
}
group = GINT16_FROM_BE (group);
/* If first marker is 0x01, then the palette has no group name */
if (group != 1)
{
palette_name = pika_palette_load_ase_block_name (input, file_size,
error);
palette = PIKA_PALETTE (pika_palette_new (context, palette_name));
num_cols -= 1;
}
else
{
palette_name = g_path_get_basename (pika_file_get_utf8_name (file));
palette = PIKA_PALETTE (pika_palette_new (context, palette_name));
skip_first = TRUE;
}
g_free (palette_name);
/* Header blocks are considered a "color" so we offset the count here */
num_cols -= 1;
for (i = 0; i < num_cols; i++)
{
gchar color_space[4];
gchar *color_name;
PikaRGB color;
gshort spot_color;
gfloat *pixels;
gint components = 0;
gboolean valid_color = TRUE;
if (! skip_first)
{
if (! g_input_stream_read_all (input, &group, sizeof (group),
&bytes_read, NULL, error))
{
g_printerr ("Invalid ASE color entry: %s.",
pika_file_get_utf8_name (file));
break;
}
}
skip_first = FALSE;
color_name = pika_palette_load_ase_block_name (input, file_size, error);
if (! color_name)
break;
g_input_stream_read_all (input, color_space, sizeof (color_space),
&bytes_read, NULL, error);
/* Color formats */
if (g_str_has_prefix (g_strstrip (color_space), "RGB"))
{
components = 3;
src_format = babl_format ("R'G'B' float");
}
else if (g_str_has_prefix (g_strstrip (color_space), "GRAY"))
{
components = 1;
src_format = babl_format ("Y' float");
}
else if (g_str_has_prefix (g_strstrip (color_space), "CMYK"))
{
components = 4;
src_format = babl_format ("CMYK float");
}
else if (g_str_has_prefix (g_strstrip (color_space), "LAB"))
{
components = 3;
src_format = babl_format ("CIE Lab float");
}
if (components == 0)
{
g_printerr (_("Invalid color components: %s."), color_space);
g_free (color_name);
break;
}
pixels = g_malloc (sizeof (gfloat) * components);
for (gint j = 0; j < components; j++)
{
gint tmp;
if (! g_input_stream_read_all (input, &tmp, sizeof (tmp),
&bytes_read, NULL, error))
{
g_printerr (_("Invalid ASE color entry: %s."),
pika_file_get_utf8_name (file));
g_free (color_name);
valid_color = FALSE;
break;
}
/* Convert 4 bytes to a 32bit float value */
tmp = GINT32_FROM_BE (tmp);
pixels[j] = *(gfloat *) &tmp;
}
if (! valid_color)
break;
/* The L component of LAB goes from 0 to 100 percent */
if (g_str_has_prefix (color_space, "LAB"))
pixels[0] *= 100;
babl_process (babl_fish (src_format, dst_format), pixels, &color, 1);
g_free (pixels);
/* TODO: When PIKA supports spot colors, use this information in
* the palette. */
if (! g_input_stream_read_all (input, &spot_color, sizeof (spot_color),
&bytes_read, NULL, error))
{
g_printerr (_("Invalid ASE color entry: %s."),
pika_file_get_utf8_name (file));
g_free (color_name);
break;
}
pika_palette_add_entry (palette, -1, color_name, &color);
g_free (color_name);
}
return g_list_prepend (NULL, palette);
}
static gchar *
pika_palette_load_ase_block_name (GInputStream *input,
goffset file_size,
GError **error)
{
gint block_length;
gushort pal_name_len;
gunichar2 *pal_name = NULL;
gchar *pal_name_utf8;
goffset current_pos;
gsize bytes_read;
if (! g_input_stream_read_all (input, &block_length, sizeof (block_length),
&bytes_read, NULL, error))
{
g_printerr (_("Invalid ASE palette name."));
return NULL;
}
block_length = GINT32_FROM_BE (block_length);
current_pos = g_seekable_tell (G_SEEKABLE (input));
if (block_length <= 0 || block_length > (file_size - current_pos))
{
g_printerr (_("Invalid ASE block size."));
return NULL;
}
if (! g_input_stream_read_all (input, &pal_name_len, sizeof (pal_name_len),
&bytes_read, NULL, error))
{
g_printerr (_("Invalid ASE palette name."));
return NULL;
}
pal_name_len = GUINT16_FROM_BE (pal_name_len);
current_pos = g_seekable_tell (G_SEEKABLE (input));
if (pal_name_len <= 0 || pal_name_len > (file_size - current_pos))
{
g_printerr (_("Invalid ASE name size."));
return NULL;
}
pal_name = g_malloc (pal_name_len * 2);
for (gint i = 0; i < pal_name_len; i++)
{
if (! g_input_stream_read_all (input, &pal_name[i], 2,
&bytes_read, NULL, error))
{
g_printerr (_("Invalid ASE palette name."));
g_free (pal_name);
return NULL;
}
pal_name[i] = GUINT16_FROM_BE (pal_name[i]);
}
pal_name_utf8 = g_utf16_to_utf8 (pal_name, pal_name_len, NULL, NULL, NULL);
g_free (pal_name);
return pal_name_utf8;
}
GList *
pika_palette_load_css (PikaContext *context,
GFile *file,
GInputStream *input,
GError **error)
{
PikaPalette *palette;
GDataInputStream *data_input;
gchar *name;
GRegex *regex;
gchar *buf;
g_return_val_if_fail (G_IS_FILE (file), NULL);
g_return_val_if_fail (G_IS_INPUT_STREAM (input), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
regex = g_regex_new (".*color.*:(?P.*)", G_REGEX_CASELESS, 0, error);
if (! regex)
return NULL;
name = g_path_get_basename (pika_file_get_utf8_name (file));
palette = PIKA_PALETTE (pika_palette_new (context, name));
g_free (name);
data_input = g_data_input_stream_new (input);
do
{
gsize buf_len = 1024;
buf = g_data_input_stream_read_line (data_input, &buf_len, NULL, NULL);
if (buf)
{
GMatchInfo *matches;
if (g_regex_match (regex, buf, 0, &matches))
{
PikaRGB color;
gchar *word = g_match_info_fetch_named (matches, "param");
if (pika_rgb_parse_css (&color, word, -1))
{
if (! pika_palette_find_entry (palette, &color, NULL))
{
pika_palette_add_entry (palette, -1, NULL, &color);
}
}
g_free (word);
}
g_match_info_free (matches);
g_free (buf);
}
}
while (buf);
g_regex_unref (regex);
g_object_unref (data_input);
return g_list_prepend (NULL, palette);
}
GList *
pika_palette_load_sbz (PikaContext *context,
GFile *file,
GInputStream *input,
GError **error)
{
SwatchBookerData sbz_data;
gchar *palette_name;
gchar *xml_data = NULL;
struct archive *a;
struct archive_entry *entry;
size_t entry_size;
int r;
g_return_val_if_fail (G_IS_FILE (file), NULL);
g_return_val_if_fail (G_IS_INPUT_STREAM (input), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
palette_name = g_path_get_basename (pika_file_get_utf8_name (file));
sbz_data.palette = PIKA_PALETTE (pika_palette_new (context, palette_name));
g_free (palette_name);
sbz_data.position = 0;
sbz_data.sorted_position = 0;
sbz_data.in_color_tag = FALSE;
sbz_data.in_book_tag = FALSE;
sbz_data.copy_name = FALSE;
sbz_data.copy_values = FALSE;
sbz_data.embedded_profiles = NULL;
if ((a = archive_read_new ()))
{
const gchar *name = pika_file_get_utf8_name (file);
archive_read_support_format_all (a);
r = archive_read_open_filename (a, name, 10240);
if (r != ARCHIVE_OK)
{
archive_read_free (a);
g_set_error (error, PIKA_DATA_ERROR, PIKA_DATA_ERROR_READ,
_("Unable to read SBZ file"));
return NULL;
}
while (archive_read_next_header (a, &entry) == ARCHIVE_OK)
{
const gchar *lower = g_ascii_strdown (archive_entry_pathname (entry), -1);
if (g_str_has_suffix (lower, ".xml"))
{
entry_size = archive_entry_size (entry);
xml_data = (gchar *) g_malloc (entry_size);
r = archive_read_data (a, xml_data, entry_size);
}
else if (g_str_has_suffix (lower, ".icc") || g_str_has_suffix (lower, ".icm"))
{
PikaColorProfile *profile = NULL;
size_t icc_size = archive_entry_size (entry);
uint8_t *icc_data = g_malloc (icc_size);
r = archive_read_data (a, icc_data, icc_size);
if (icc_data)
profile = pika_color_profile_new_from_icc_profile (icc_data, icc_size,
NULL);
if (profile)
{
SwatchBookerColorProfile sbz_profile;
sbz_profile.profile = profile;
sbz_profile.id = g_strdup (archive_entry_pathname (entry));
sbz_data.embedded_profiles =
g_list_append (sbz_data.embedded_profiles, &sbz_profile);
}
}
}
if (xml_data)
{
PikaXmlParser *xml_parser;
GMarkupParser markup_parser;
markup_parser.start_element = swatchbooker_load_start_element;
markup_parser.end_element = swatchbooker_load_end_element;
markup_parser.text = swatchbooker_load_text;
markup_parser.passthrough = NULL;
markup_parser.error = NULL;
xml_parser = pika_xml_parser_new (&markup_parser, &sbz_data);
pika_xml_parser_parse_buffer (xml_parser, xml_data, entry_size, NULL);
pika_xml_parser_free (xml_parser);
g_free (xml_data);
}
r = archive_read_free (a);
}
else
{
g_set_error (error, PIKA_DATA_ERROR, PIKA_DATA_ERROR_READ,
_("Unable to open SBZ file"));
return NULL;
}
return g_list_prepend (NULL, sbz_data.palette);
}
static void
swatchbooker_load_start_element (GMarkupParseContext *context,
const gchar *element_name,
const gchar **attribute_names,
const gchar **attribute_values,
gpointer user_data,
GError **error)
{
SwatchBookerData *sbz_data = user_data;
sbz_data->copy_values = FALSE;
sbz_data->color_model = NULL;
sbz_data->color_space = NULL;
if (! strcmp (g_ascii_strdown (element_name, -1), "color"))
{
sbz_data->in_color_tag = TRUE;
}
else if (! strcmp (g_ascii_strdown (element_name, -1), "dc:identifier"))
{
if (sbz_data->in_color_tag)
sbz_data->copy_name = TRUE;
}
else if (! strcmp (g_ascii_strdown (element_name, -1), "values"))
{
while (*attribute_names)
{
if (! strcmp (g_ascii_strdown (*attribute_names, -1), "model"))
{
sbz_data->color_model =
g_strdup (g_ascii_strdown (*attribute_values, -1));
}
else if (! strcmp (g_ascii_strdown (*attribute_names, -1), "space"))
{
sbz_data->color_space = g_strdup (*attribute_values);
}
attribute_names++;
attribute_values++;
}
sbz_data->copy_values = TRUE;
}
else if (! strcmp (g_ascii_strdown (element_name, -1), "book"))
{
sbz_data->in_book_tag = TRUE;
while (*attribute_names)
{
if (! strcmp (g_ascii_strdown (*attribute_names, -1), "columns"))
{
gint columns = atoi (*attribute_values);
if (columns > 0)
pika_palette_set_columns (sbz_data->palette, columns);
break;
}
attribute_names++;
attribute_values++;
}
}
else if (! strcmp (g_ascii_strdown (element_name, -1), "swatch") &&
sbz_data->in_book_tag)
{
while (*attribute_names)
{
if (! strcmp (g_ascii_strdown (*attribute_names, -1), "material"))
{
GList *cols;
gint original_id = 0;
for (cols = pika_palette_get_colors (sbz_data->palette);
cols;
cols = g_list_next (cols))
{
PikaPaletteEntry *entry = cols->data;
if (! strcmp (*attribute_values, entry->name))
{
pika_palette_move_entry (sbz_data->palette, entry,
sbz_data->sorted_position);
sbz_data->sorted_position++;
break;
}
original_id++;
}
break;
}
attribute_names++;
attribute_values++;
}
}
}
static void
swatchbooker_load_end_element (GMarkupParseContext *context,
const gchar *element_name,
gpointer user_data,
GError **error)
{
SwatchBookerData *sbz_data = user_data;
if (! strcmp (g_ascii_strdown (element_name, -1), "color"))
sbz_data->in_color_tag = FALSE;
else if (! strcmp (g_ascii_strdown (element_name, -1), "book"))
sbz_data->in_book_tag = FALSE;
}
static void
swatchbooker_load_text (GMarkupParseContext *context,
const gchar *text,
gsize text_len,
gpointer user_data,
GError **error)
{
SwatchBookerData *sbz_data = user_data;
gchar **values;
gint i;
gint total = 0;
/* Save palette name */
if (sbz_data->copy_name)
{
if (! sbz_data->palette_name)
sbz_data->palette_name = g_strdup (text);
sbz_data->copy_name = FALSE;
}
/* Load palette entry */
if (sbz_data->copy_values)
{
values = g_strsplit (text, " ", 0);
for (i = 0; values[i]; i++)
total++;
if (total > 0)
{
gfloat true_values[total];
PikaRGB color;
gboolean load_pal = FALSE;
const Babl *src_format = NULL;
const Babl *dst_format = babl_format ("R'G'B' float");
const Babl *space = NULL;
/* Load profile if applicable */
if (sbz_data->embedded_profiles &&
sbz_data->color_space)
{
GList *profile_list;
for (profile_list = g_list_copy (sbz_data->embedded_profiles);
profile_list;
profile_list = g_list_next (profile_list))
{
SwatchBookerColorProfile *icc = profile_list->data;
if (! strcmp (sbz_data->color_space, icc->id))
{
space = pika_color_profile_get_space (icc->profile,
PIKA_COLOR_RENDERING_INTENT_RELATIVE_COLORIMETRIC,
NULL);
break;
}
}
}
for (i = 0; values[i]; i++)
true_values[i] = atof (values[i]);
/* No need for babl conversion for sRGB colors */
if (! strcmp (sbz_data->color_model, "srgb"))
{
pika_rgb_set (&color, true_values[0], true_values[1],
true_values[2]);
load_pal = TRUE;
}
else if (! strcmp (sbz_data->color_model, "rgb"))
{
src_format = babl_format_with_space ("R'G'B' float", space);
}
else if (! strcmp (sbz_data->color_model, "gray"))
{
src_format = babl_format_with_space ("Y' float", space);
}
else if (! strcmp (sbz_data->color_model, "cmyk"))
{
src_format = babl_format_with_space ("CMYK float", space);
}
else if (! strcmp (sbz_data->color_model, "hsl"))
{
src_format = babl_format_with_space ("HSL float", space);
}
else if (! strcmp (sbz_data->color_model, "hsv"))
{
src_format = babl_format_with_space ("HSV float", space);
}
else if (! strcmp (sbz_data->color_model, "lab"))
{
src_format = babl_format_with_space ("CIE Lab float", space);
}
else if (! strcmp (sbz_data->color_model, "xyz"))
{
src_format = babl_format_with_space ("CIE XYZ float", space);
}
if (src_format != NULL)
{
gfloat rgb[3];
babl_process (babl_fish (src_format, dst_format),
true_values, rgb, 1);
pika_rgb_set (&color, rgb[0], rgb[1], rgb[2]);
load_pal = TRUE;
}
if (load_pal)
{
pika_palette_add_entry (sbz_data->palette, sbz_data->position,
NULL, &color);
if (sbz_data->palette_name)
pika_palette_set_entry_name (sbz_data->palette,
sbz_data->position,
sbz_data->palette_name);
sbz_data->position++;
}
}
sbz_data->palette_name = NULL;
sbz_data->copy_values = FALSE;
if (sbz_data->color_model)
g_free (sbz_data->color_model);
}
}
PikaPaletteFileFormat
pika_palette_load_detect_format (GFile *file,
GInputStream *input)
{
PikaPaletteFileFormat format = PIKA_PALETTE_FILE_FORMAT_UNKNOWN;
gchar header[16];
gsize bytes_read;
if (g_input_stream_read_all (input, &header, sizeof (header),
&bytes_read, NULL, NULL) &&
bytes_read == sizeof (header))
{
if (g_str_has_prefix (header + 0, "RIFF") &&
g_str_has_prefix (header + 8, "PAL data"))
{
format = PIKA_PALETTE_FILE_FORMAT_RIFF_PAL;
}
else if (g_str_has_prefix (header, "PIKA Palette"))
{
format = PIKA_PALETTE_FILE_FORMAT_GPL;
}
else if (g_str_has_prefix (header, "JASC-PAL"))
{
format = PIKA_PALETTE_FILE_FORMAT_PSP_PAL;
}
else if (g_str_has_prefix (header, "8BCB"))
{
format = PIKA_PALETTE_FILE_FORMAT_ACB;
}
}
if (format == PIKA_PALETTE_FILE_FORMAT_UNKNOWN)
{
gchar *lower = g_ascii_strdown (pika_file_get_utf8_name (file), -1);
if (g_str_has_suffix (lower, ".aco"))
{
format = PIKA_PALETTE_FILE_FORMAT_ACO;
}
if (g_str_has_suffix (lower, ".ase"))
{
format = PIKA_PALETTE_FILE_FORMAT_ASE;
}
else if (g_str_has_suffix (lower, ".css"))
{
format = PIKA_PALETTE_FILE_FORMAT_CSS;
}
else if (g_str_has_suffix (lower, ".sbz"))
{
format = PIKA_PALETTE_FILE_FORMAT_SBZ;
}
g_free (lower);
}
if (format == PIKA_PALETTE_FILE_FORMAT_UNKNOWN)
{
GFileInfo *info = g_file_query_info (file,
G_FILE_ATTRIBUTE_STANDARD_SIZE,
G_FILE_QUERY_INFO_NONE,
NULL, NULL);
if (info)
{
goffset size = g_file_info_get_size (info);
if (size == 768)
format = PIKA_PALETTE_FILE_FORMAT_ACT;
g_object_unref (info);
}
}
g_seekable_seek (G_SEEKABLE (input), 0, G_SEEK_SET, NULL, NULL);
return format;
}