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PIKApp/plug-ins/file-bmp/bmp.c

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Initial checkin of Pika from heckimp
2023-09-26 00:35:21 +02:00
/* bmp.c */
/* Version 0.52 */
/* This is a File input and output filter for the */
/* Pika. It loads and saves images in windows(TM) */
/* bitmap format. */
/* Some Parts that deal with the interaction with */
/* PIKA are taken from the GIF plugin by */
/* Peter Mattis & Spencer Kimball and from the */
/* PCX plugin by Francisco Bustamante. */
/* */
/* Alexander.Schulz@stud.uni-karlsruhe.de */
/* Changes: 28.11.1997 Noninteractive operation */
/* 16.03.1998 Endian-independent!! */
/* 21.03.1998 Little Bug-fix */
/* 06.04.1998 Bugfix in Padding */
/* 11.04.1998 Arch. cleanup (-Wall) */
/* Parses gtkrc */
/* 14.04.1998 Another Bug in Padding */
/* 28.04.1998 RLE-Encoding rewritten */
/* 29.10.1998 Changes by Tor Lillqvist */
/* <tml@iki.fi> to support */
/* 16 and 32 bit images */
/* 28.11.1998 Bug in RLE-read-padding */
/* fixed. */
/* 19.12.1999 Resolution support added */
/* 06.05.2000 Overhaul for 16&24-bit */
/* plus better OS/2 code */
/* by njl195@zepler.org.uk */
/* 29.06.2006 Full support for 16/32 */
/* bits bitmaps and support */
/* for alpha channel */
/* by p.filiciak@zax.pl */
/*
* PIKA - Photo and Image Kooker Application
* 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 <stdlib.h>
#include <string.h>
#include <libpika/pika.h>
#include <libpika/pikaui.h>
#include "bmp.h"
#include "bmp-load.h"
#include "bmp-save.h"
#include "libpika/stdplugins-intl.h"
typedef struct _Bmp Bmp;
typedef struct _BmpClass BmpClass;
struct _Bmp
{
PikaPlugIn parent_instance;
};
struct _BmpClass
{
PikaPlugInClass parent_class;
};
#define BMP_TYPE (bmp_get_type ())
#define BMP (obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), BMP_TYPE, Bmp))
GType bmp_get_type (void) G_GNUC_CONST;
static GList * bmp_query_procedures (PikaPlugIn *plug_in);
static PikaProcedure * bmp_create_procedure (PikaPlugIn *plug_in,
const gchar *name);
static PikaValueArray * bmp_load (PikaProcedure *procedure,
PikaRunMode run_mode,
GFile *file,
const PikaValueArray *args,
gpointer run_data);
static PikaValueArray * bmp_save (PikaProcedure *procedure,
PikaRunMode run_mode,
PikaImage *image,
gint n_drawables,
PikaDrawable **drawables,
GFile *file,
const PikaValueArray *args,
gpointer run_data);
G_DEFINE_TYPE (Bmp, bmp, PIKA_TYPE_PLUG_IN)
PIKA_MAIN (BMP_TYPE)
DEFINE_STD_SET_I18N
static void
bmp_class_init (BmpClass *klass)
{
PikaPlugInClass *plug_in_class = PIKA_PLUG_IN_CLASS (klass);
plug_in_class->query_procedures = bmp_query_procedures;
plug_in_class->create_procedure = bmp_create_procedure;
plug_in_class->set_i18n = STD_SET_I18N;
}
static void
bmp_init (Bmp *bmp)
{
}
static GList *
bmp_query_procedures (PikaPlugIn *plug_in)
{
GList *list = NULL;
list = g_list_append (list, g_strdup (LOAD_PROC));
list = g_list_append (list, g_strdup (SAVE_PROC));
return list;
}
static PikaProcedure *
bmp_create_procedure (PikaPlugIn *plug_in,
const gchar *name)
{
PikaProcedure *procedure = NULL;
if (! strcmp (name, LOAD_PROC))
{
procedure = pika_load_procedure_new (plug_in, name,
PIKA_PDB_PROC_TYPE_PLUGIN,
bmp_load, NULL, NULL);
pika_procedure_set_menu_label (procedure, _("Windows BMP image"));
pika_procedure_set_documentation (procedure,
_("Loads files of Windows BMP file format"),
_("Loads files of Windows BMP file format"),
name);
pika_procedure_set_attribution (procedure,
"Alexander Schulz",
"Alexander Schulz",
"1997");
pika_file_procedure_set_mime_types (PIKA_FILE_PROCEDURE (procedure),
"image/bmp");
pika_file_procedure_set_extensions (PIKA_FILE_PROCEDURE (procedure),
"bmp");
pika_file_procedure_set_magics (PIKA_FILE_PROCEDURE (procedure),
"0,string,BM");
}
else if (! strcmp (name, SAVE_PROC))
{
procedure = pika_save_procedure_new (plug_in, name,
PIKA_PDB_PROC_TYPE_PLUGIN,
bmp_save, NULL, NULL);
pika_procedure_set_image_types (procedure, "INDEXED, GRAY, RGB*");
pika_procedure_set_menu_label (procedure, _("Windows BMP image"));
pika_file_procedure_set_format_name (PIKA_FILE_PROCEDURE (procedure),
_("BMP"));
pika_procedure_set_documentation (procedure,
_("Saves files in Windows BMP file format"),
_("Saves files in Windows BMP file format"),
name);
pika_procedure_set_attribution (procedure,
"Alexander Schulz",
"Alexander Schulz",
"1997");
pika_file_procedure_set_mime_types (PIKA_FILE_PROCEDURE (procedure),
"image/bmp");
pika_file_procedure_set_extensions (PIKA_FILE_PROCEDURE (procedure),
"bmp");
PIKA_PROC_ARG_BOOLEAN (procedure, "use-rle",
_("Ru_n-Length Encoded"),
_("Use run-length-encoding compression "
"(only valid for 4 and 8-bit indexed images)"),
FALSE,
G_PARAM_READWRITE);
PIKA_PROC_ARG_BOOLEAN (procedure, "write-color-space",
_("_Write color space information"),
_("Whether or not to write BITMAPV5HEADER "
"color space data"),
TRUE,
G_PARAM_READWRITE);
PIKA_PROC_ARG_INT (procedure, "rgb-format",
_("R_GB format"),
_("Export format for RGB images "
"(0=RGB_565, 1=RGBA_5551, 2=RGB_555, 3=RGB_888, "
"4=RGBA_8888, 5=RGBX_8888)"),
0, 5, 3,
G_PARAM_READWRITE);
}
return procedure;
}
static PikaValueArray *
bmp_load (PikaProcedure *procedure,
PikaRunMode run_mode,
GFile *file,
const PikaValueArray *args,
gpointer run_data)
{
PikaValueArray *return_vals;
PikaImage *image;
GError *error = NULL;
gegl_init (NULL, NULL);
image = load_image (file, &error);
if (! image)
return pika_procedure_new_return_values (procedure,
PIKA_PDB_EXECUTION_ERROR,
error);
return_vals = pika_procedure_new_return_values (procedure,
PIKA_PDB_SUCCESS,
NULL);
PIKA_VALUES_SET_IMAGE (return_vals, 1, image);
return return_vals;
}
static PikaValueArray *
bmp_save (PikaProcedure *procedure,
PikaRunMode run_mode,
PikaImage *image,
gint n_drawables,
PikaDrawable **drawables,
GFile *file,
const PikaValueArray *args,
gpointer run_data)
{
PikaProcedureConfig *config;
PikaPDBStatusType status = PIKA_PDB_SUCCESS;
PikaExportReturn export = PIKA_EXPORT_CANCEL;
GError *error = NULL;
gegl_init (NULL, NULL);
config = pika_procedure_create_config (procedure);
pika_procedure_config_begin_run (config, image, run_mode, args);
switch (run_mode)
{
case PIKA_RUN_INTERACTIVE:
case PIKA_RUN_WITH_LAST_VALS:
pika_ui_init (PLUG_IN_BINARY);
export = pika_export_image (&image, &n_drawables, &drawables, "BMP",
PIKA_EXPORT_CAN_HANDLE_RGB |
PIKA_EXPORT_CAN_HANDLE_GRAY |
PIKA_EXPORT_CAN_HANDLE_ALPHA |
PIKA_EXPORT_CAN_HANDLE_INDEXED);
if (export == PIKA_EXPORT_CANCEL)
return pika_procedure_new_return_values (procedure,
PIKA_PDB_CANCEL,
NULL);
break;
default:
break;
}
if (n_drawables != 1)
{
g_set_error (&error, G_FILE_ERROR, 0,
_("BMP format does not support multiple layers."));
return pika_procedure_new_return_values (procedure,
PIKA_PDB_CALLING_ERROR,
error);
}
status = save_image (file, image, drawables[0], run_mode,
procedure, G_OBJECT (config),
&error);
pika_procedure_config_end_run (config, status);
g_object_unref (config);
if (export == PIKA_EXPORT_EXPORT)
{
pika_image_delete (image);
g_free (drawables);
}
return pika_procedure_new_return_values (procedure, status, error);
}