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gimp/plug-ins/file-ico/ico.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
*
* GIMP Plug-in for Windows Icon files.
* Copyright (C) 2002 Christian Kreibich <christian@whoop.org>.
*
* 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 <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
/* #define ICO_DBG */
#include "ico.h"
#include "ico-load.h"
#include "ico-save.h"
#include "libgimp/stdplugins-intl.h"
#define LOAD_PROC "file-ico-load"
#define LOAD_THUMB_PROC "file-ico-load-thumb"
#define SAVE_PROC "file-ico-save"
static void query (void);
static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
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 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 load_return_vals[] =
{
{ GIMP_PDB_IMAGE, "image", "Output image" },
};
static const GimpParamDef thumb_args[] =
{
{ GIMP_PDB_STRING, "filename", "The name of the file to load" },
{ GIMP_PDB_INT32, "thumb-size", "Preferred thumbnail size" }
};
static const GimpParamDef thumb_return_vals[] =
{
{ GIMP_PDB_IMAGE, "image", "Thumbnail image" },
{ GIMP_PDB_INT32, "image-width", "Width of full-sized image" },
{ GIMP_PDB_INT32, "image-height", "Height of full-sized image" }
};
static const GimpParamDef save_args[] =
{
{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
{ GIMP_PDB_IMAGE, "image", "Input image" },
{ GIMP_PDB_DRAWABLE, "drawable", "Drawable to save" },
{ GIMP_PDB_STRING, "filename", "The name of the file to save the image in" },
{ GIMP_PDB_STRING, "raw-filename", "The name entered" },
};
gimp_install_procedure (LOAD_PROC,
"Loads files of Windows ICO file format",
"Loads files of Windows ICO file format",
"Christian Kreibich <christian@whoop.org>",
"Christian Kreibich <christian@whoop.org>",
"2002",
N_("Microsoft Windows icon"),
NULL,
GIMP_PLUGIN,
G_N_ELEMENTS (load_args),
G_N_ELEMENTS (load_return_vals),
load_args, load_return_vals);
gimp_register_file_handler_mime (LOAD_PROC, "image/x-ico");
gimp_register_magic_load_handler (LOAD_PROC,
"ico",
"",
"0,string,\\000\\001\\000\\000,0,string,\\000\\002\\000\\000");
gimp_install_procedure (LOAD_THUMB_PROC,
"Loads a preview from an Windows ICO file",
"",
"Dom Lachowicz, Sven Neumann",
"Sven Neumann <sven@gimp.org>",
"2005",
NULL,
NULL,
GIMP_PLUGIN,
G_N_ELEMENTS (thumb_args),
G_N_ELEMENTS (thumb_return_vals),
thumb_args, thumb_return_vals);
gimp_register_thumbnail_loader (LOAD_PROC, LOAD_THUMB_PROC);
gimp_install_procedure (SAVE_PROC,
"Saves files in Windows ICO file format",
"Saves files in Windows ICO file format",
"Christian Kreibich <christian@whoop.org>",
"Christian Kreibich <christian@whoop.org>",
"2002",
N_("Microsoft Windows icon"),
"*",
GIMP_PLUGIN,
G_N_ELEMENTS (save_args), 0,
save_args, NULL);
gimp_register_file_handler_mime (SAVE_PROC, "image/x-ico");
gimp_register_save_handler (SAVE_PROC, "ico", "");
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[4];
gint32 image_ID;
gint32 drawable_ID;
GimpRunMode run_mode;
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
GimpExportReturn export = GIMP_EXPORT_CANCEL;
GError *error = NULL;
INIT_I18N ();
run_mode = param[0].data.d_int32;
*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_PROC) == 0)
{
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
break;
case GIMP_RUN_NONINTERACTIVE:
if (nparams != 3)
status = GIMP_PDB_CALLING_ERROR;
break;
default:
break;
}
if (status == GIMP_PDB_SUCCESS)
{
image_ID = ico_load_image (param[1].data.d_string, &error);
if (image_ID != -1)
{
*nreturn_vals = 2;
values[1].type = GIMP_PDB_IMAGE;
values[1].data.d_image = image_ID;
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
}
}
}
else if (strcmp (name, LOAD_THUMB_PROC) == 0)
{
if (nparams < 2)
{
status = GIMP_PDB_CALLING_ERROR;
}
else
{
const gchar *filename = param[0].data.d_string;
gint width = param[1].data.d_int32;
gint height = param[1].data.d_int32;
gint32 image_ID;
image_ID = ico_load_thumbnail_image (filename,
&width, &height, &error);
if (image_ID != -1)
{
*nreturn_vals = 4;
values[1].type = GIMP_PDB_IMAGE;
values[1].data.d_image = image_ID;
values[2].type = GIMP_PDB_INT32;
values[2].data.d_int32 = width;
values[3].type = GIMP_PDB_INT32;
values[3].data.d_int32 = height;
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
}
}
}
else if (strcmp (name, SAVE_PROC) == 0)
{
gchar *file_name;
image_ID = param[1].data.d_int32;
drawable_ID = param[2].data.d_int32;
file_name = param[3].data.d_string;
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
break;
case GIMP_RUN_NONINTERACTIVE:
/* Make sure all the arguments are there! */
if (nparams < 5)
status = GIMP_PDB_CALLING_ERROR;
break;
case GIMP_RUN_WITH_LAST_VALS:
break;
default:
break;
}
if (status == GIMP_PDB_SUCCESS)
{
status = ico_save_image (file_name, image_ID, run_mode, &error);
}
if (export == GIMP_EXPORT_EXPORT)
gimp_image_delete (image_ID);
}
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;
}
gint
ico_rowstride (gint width,
gint bpp)
{
switch (bpp)
{
case 1:
if ((width % 32) == 0)
return width / 8;
else
return 4 * (width/32 + 1);
break;
case 4:
if ((width % 8) == 0)
return width / 2;
else
return 4 * (width/8 + 1);
break;
case 8:
if ((width % 4) == 0)
return width;
else
return 4 * (width/4 + 1);
break;
case 24:
if (((width*3) % 4) == 0)
return width * 3;
else
return 4 * (width*3/4+1);
case 32:
return width * 4;
default:
g_warning ("invalid bitrate: %d\n", bpp);
g_assert_not_reached ();
return width * (bpp/8);
}
}
guint8 *
ico_alloc_map (gint width,
gint height,
gint bpp,
gint *length)
{
gint len = 0;
guint8 *map = NULL;
len = ico_rowstride (width, bpp) * height;
*length = len;
map = g_new0 (guint8, len);
return map;
}
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