gimp/app/core/gimpbrush-save.c

108 lines
3.1 KiB
C

/* GIMP - The GNU Image Manipulation Program
* 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 <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gdk-pixbuf/gdk-pixbuf.h>
#include "core-types.h"
#include "gimpbrush.h"
#include "gimpbrush-header.h"
#include "gimpbrush-save.h"
#include "gimptempbuf.h"
gboolean
gimp_brush_save (GimpData *data,
GOutputStream *output,
GError **error)
{
GimpBrush *brush = GIMP_BRUSH (data);
GimpTempBuf *mask = gimp_brush_get_mask (brush);
GimpTempBuf *pixmap = gimp_brush_get_pixmap (brush);
GimpBrushHeader header;
const gchar *name;
gint width;
gint height;
name = gimp_object_get_name (brush);
width = gimp_temp_buf_get_width (mask);
height = gimp_temp_buf_get_height (mask);
header.header_size = g_htonl (sizeof (GimpBrushHeader) +
strlen (name) + 1);
header.version = g_htonl (2);
header.width = g_htonl (width);
header.height = g_htonl (height);
header.bytes = g_htonl (pixmap ? 4 : 1);
header.magic_number = g_htonl (GIMP_BRUSH_MAGIC);
header.spacing = g_htonl (gimp_brush_get_spacing (brush));
if (! g_output_stream_write_all (output, &header, sizeof (header),
NULL, NULL, error))
{
return FALSE;
}
if (! g_output_stream_write_all (output, name, strlen (name) + 1,
NULL, NULL, error))
{
return FALSE;
}
if (pixmap)
{
gsize size = width * height * 4;
guchar *data = g_malloc (size);
guchar *p = gimp_temp_buf_get_data (pixmap);
guchar *m = gimp_temp_buf_get_data (mask);
guchar *d = data;
gint i;
for (i = 0; i < width * height; i++)
{
*d++ = *p++;
*d++ = *p++;
*d++ = *p++;
*d++ = *m++;
}
if (! g_output_stream_write_all (output, data, size,
NULL, NULL, error))
{
g_free (data);
return FALSE;
}
g_free (data);
}
else
{
if (! g_output_stream_write_all (output,
gimp_temp_buf_get_data (mask),
gimp_temp_buf_get_data_size (mask),
NULL, NULL, error))
{
return FALSE;
}
}
return TRUE;
}