mirror of https://github.com/GNOME/gimp.git
137 lines
2.8 KiB
C
137 lines
2.8 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <string.h> /* strlen */
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#include <errno.h>
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#include <glib.h>
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#include "xcf-write.h"
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#include "gimp-intl.h"
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guint
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xcf_write_int32 (FILE *fp,
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guint32 *data,
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gint count,
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GError **error)
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{
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GError *tmp_error = NULL;
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guint32 tmp;
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gint i;
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if (count > 0)
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{
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for (i = 0; i < count; i++)
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{
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tmp = g_htonl (data[i]);
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xcf_write_int8 (fp, (guint8*) &tmp, 4, &tmp_error);
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if (tmp_error)
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{
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g_propagate_error (error, tmp_error);
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return i * 4;
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}
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}
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}
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return count * 4;
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}
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guint
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xcf_write_float (FILE *fp,
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gfloat *data,
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gint count,
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GError **error)
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{
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return xcf_write_int32 (fp, (guint32 *)((void *)data), count, error);
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}
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guint
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xcf_write_int8 (FILE *fp,
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guint8 *data,
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gint count,
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GError **error)
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{
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guint total;
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gint bytes;
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total = count;
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while (count > 0)
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{
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bytes = fwrite ((gchar*) data, sizeof (gchar), count, fp);
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if (bytes == 0)
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{
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g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno),
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_("Error writing XCF: %s"), g_strerror (errno));
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return total;
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}
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count -= bytes;
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data += bytes;
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}
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return total;
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}
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guint
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xcf_write_string (FILE *fp,
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gchar **data,
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gint count,
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GError **error)
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{
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GError *tmp_error = NULL;
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guint32 tmp;
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guint total;
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gint i;
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total = 0;
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for (i = 0; i < count; i++)
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{
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if (data[i])
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tmp = strlen (data[i]) + 1;
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else
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tmp = 0;
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xcf_write_int32 (fp, &tmp, 1, &tmp_error);
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if (tmp_error)
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{
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g_propagate_error(error, tmp_error);
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return total;
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}
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if (tmp > 0)
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xcf_write_int8 (fp, (guint8*) data[i], tmp, &tmp_error);
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if (tmp_error)
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{
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g_propagate_error(error, tmp_error);
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return total;
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}
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total += 4 + tmp;
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}
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return total;
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}
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