524 lines
16 KiB
C
524 lines
16 KiB
C
/* 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
|
|
*
|
|
* file-gegl.c -- GEGL based file format plug-in
|
|
* Copyright (C) 2012 Simon Budig <simon@gimp.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 <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
|
|
#include <glib/gstdio.h>
|
|
|
|
#include <libpika/pika.h>
|
|
#include <libpika/pikaui.h>
|
|
|
|
#include "libpika/stdplugins-intl.h"
|
|
|
|
|
|
#define PLUG_IN_BINARY "file-gegl"
|
|
|
|
|
|
typedef struct _FileFormat FileFormat;
|
|
|
|
struct _FileFormat
|
|
{
|
|
const gchar *file_type;
|
|
const gchar *mime_type;
|
|
const gchar *extensions;
|
|
const gchar *magic;
|
|
|
|
const gchar *load_proc;
|
|
const gchar *load_blurb;
|
|
const gchar *load_help;
|
|
const gchar *load_op;
|
|
|
|
const gchar *save_proc;
|
|
const gchar *save_blurb;
|
|
const gchar *save_help;
|
|
const gchar *save_op;
|
|
};
|
|
|
|
|
|
typedef struct _Goat Goat;
|
|
typedef struct _GoatClass GoatClass;
|
|
|
|
struct _Goat
|
|
{
|
|
PikaPlugIn parent_instance;
|
|
};
|
|
|
|
struct _GoatClass
|
|
{
|
|
PikaPlugInClass parent_class;
|
|
};
|
|
|
|
|
|
#define GOAT_TYPE (goat_get_type ())
|
|
#define GOAT (obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GOAT_TYPE, Goat))
|
|
|
|
GType goat_get_type (void) G_GNUC_CONST;
|
|
|
|
static GList * goat_query_procedures (PikaPlugIn *plug_in);
|
|
static PikaProcedure * goat_create_procedure (PikaPlugIn *plug_in,
|
|
const gchar *name);
|
|
|
|
static PikaValueArray * goat_load (PikaProcedure *procedure,
|
|
PikaRunMode run_mode,
|
|
GFile *file,
|
|
const PikaValueArray *args,
|
|
gpointer run_data);
|
|
static PikaValueArray * goat_save (PikaProcedure *procedure,
|
|
PikaRunMode run_mode,
|
|
PikaImage *image,
|
|
gint n_drawables,
|
|
PikaDrawable **drawables,
|
|
GFile *file,
|
|
const PikaValueArray *args,
|
|
gpointer run_data);
|
|
|
|
static PikaImage * load_image (GFile *file,
|
|
const gchar *gegl_op,
|
|
GError **error);
|
|
static gboolean save_image (GFile *file,
|
|
const gchar *gegl_op,
|
|
PikaImage *image,
|
|
PikaDrawable *drawable,
|
|
GError **error);
|
|
|
|
|
|
G_DEFINE_TYPE (Goat, goat, PIKA_TYPE_PLUG_IN)
|
|
|
|
PIKA_MAIN (GOAT_TYPE)
|
|
DEFINE_STD_SET_I18N
|
|
|
|
|
|
static const FileFormat file_formats[] =
|
|
{
|
|
{
|
|
N_("Radiance RGBE"),
|
|
"image/vnd.radiance",
|
|
"hdr",
|
|
"0,string,#?",
|
|
|
|
"file-load-rgbe",
|
|
"Load files in the RGBE file format",
|
|
"This procedure loads images in the RGBE format, using gegl:rgbe-load",
|
|
"gegl:rgbe-load",
|
|
|
|
"file-save-rgbe",
|
|
"Saves files in the RGBE file format",
|
|
"This procedure exports images in the RGBE format, using gegl:rgbe-save",
|
|
"gegl:rgbe-save",
|
|
},
|
|
{
|
|
N_("OpenEXR image"),
|
|
"image/x-exr",
|
|
"exr",
|
|
"0,lelong,20000630",
|
|
|
|
/* no EXR loading (implemented in native PIKA plug-in) */
|
|
NULL, NULL, NULL, NULL,
|
|
|
|
"file-exr-save",
|
|
"Saves files in the OpenEXR file format",
|
|
"This procedure saves images in the OpenEXR format, using gegl:exr-save",
|
|
"gegl:exr-save"
|
|
}
|
|
};
|
|
|
|
|
|
static void
|
|
goat_class_init (GoatClass *klass)
|
|
{
|
|
PikaPlugInClass *plug_in_class = PIKA_PLUG_IN_CLASS (klass);
|
|
|
|
plug_in_class->query_procedures = goat_query_procedures;
|
|
plug_in_class->create_procedure = goat_create_procedure;
|
|
plug_in_class->set_i18n = STD_SET_I18N;
|
|
}
|
|
|
|
static void
|
|
goat_init (Goat *goat)
|
|
{
|
|
}
|
|
|
|
static GList *
|
|
goat_query_procedures (PikaPlugIn *plug_in)
|
|
{
|
|
GList *list = NULL;
|
|
gint i;
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (file_formats); i++)
|
|
{
|
|
const FileFormat *format = &file_formats[i];
|
|
|
|
if (format->load_proc)
|
|
list = g_list_append (list, g_strdup (format->load_proc));
|
|
|
|
if (format->save_proc)
|
|
list = g_list_append (list, g_strdup (format->save_proc));
|
|
}
|
|
|
|
return list;
|
|
}
|
|
|
|
static PikaProcedure *
|
|
goat_create_procedure (PikaPlugIn *plug_in,
|
|
const gchar *name)
|
|
{
|
|
PikaProcedure *procedure = NULL;
|
|
gint i;
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (file_formats); i++)
|
|
{
|
|
const FileFormat *format = &file_formats[i];
|
|
|
|
if (! g_strcmp0 (name, format->load_proc))
|
|
{
|
|
procedure = pika_load_procedure_new (plug_in, name,
|
|
PIKA_PDB_PROC_TYPE_PLUGIN,
|
|
goat_load,
|
|
(gpointer) format, NULL);
|
|
|
|
pika_procedure_set_menu_label (procedure, format->file_type);
|
|
|
|
pika_procedure_set_documentation (procedure,
|
|
format->load_blurb,
|
|
format->load_help,
|
|
name);
|
|
|
|
pika_file_procedure_set_mime_types (PIKA_FILE_PROCEDURE (procedure),
|
|
format->mime_type);
|
|
pika_file_procedure_set_extensions (PIKA_FILE_PROCEDURE (procedure),
|
|
format->extensions);
|
|
pika_file_procedure_set_magics (PIKA_FILE_PROCEDURE (procedure),
|
|
format->magic);
|
|
}
|
|
else if (! g_strcmp0 (name, format->save_proc))
|
|
{
|
|
procedure = pika_save_procedure_new (plug_in, name,
|
|
PIKA_PDB_PROC_TYPE_PLUGIN,
|
|
goat_save,
|
|
(gpointer) format, NULL);
|
|
|
|
pika_procedure_set_image_types (procedure, "*");
|
|
|
|
pika_procedure_set_menu_label (procedure, format->file_type);
|
|
|
|
pika_procedure_set_documentation (procedure,
|
|
format->save_blurb,
|
|
format->save_help,
|
|
name);
|
|
|
|
pika_file_procedure_set_mime_types (PIKA_FILE_PROCEDURE (procedure),
|
|
format->mime_type);
|
|
pika_file_procedure_set_extensions (PIKA_FILE_PROCEDURE (procedure),
|
|
format->extensions);
|
|
}
|
|
}
|
|
|
|
return procedure;
|
|
}
|
|
|
|
static PikaValueArray *
|
|
goat_load (PikaProcedure *procedure,
|
|
PikaRunMode run_mode,
|
|
GFile *file,
|
|
const PikaValueArray *args,
|
|
gpointer run_data)
|
|
{
|
|
const FileFormat *format = run_data;
|
|
PikaValueArray *return_vals;
|
|
PikaImage *image;
|
|
GError *error = NULL;
|
|
|
|
gegl_init (NULL, NULL);
|
|
|
|
image = load_image (file, format->load_op, &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 *
|
|
goat_save (PikaProcedure *procedure,
|
|
PikaRunMode run_mode,
|
|
PikaImage *image,
|
|
gint n_drawables,
|
|
PikaDrawable **drawables,
|
|
GFile *file,
|
|
const PikaValueArray *args,
|
|
gpointer run_data)
|
|
{
|
|
const FileFormat *format = run_data;
|
|
PikaPDBStatusType status = PIKA_PDB_SUCCESS;
|
|
PikaExportReturn export = PIKA_EXPORT_CANCEL;
|
|
GError *error = NULL;
|
|
|
|
gegl_init (NULL, NULL);
|
|
|
|
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, "GEGL",
|
|
PIKA_EXPORT_CAN_HANDLE_RGB |
|
|
PIKA_EXPORT_CAN_HANDLE_GRAY |
|
|
PIKA_EXPORT_CAN_HANDLE_INDEXED |
|
|
PIKA_EXPORT_CAN_HANDLE_ALPHA);
|
|
|
|
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,
|
|
_("GEGL export plug-in does not support multiple layers."));
|
|
|
|
return pika_procedure_new_return_values (procedure,
|
|
PIKA_PDB_CALLING_ERROR,
|
|
error);
|
|
}
|
|
|
|
if (! save_image (file, format->save_op, image, drawables[0],
|
|
&error))
|
|
{
|
|
status = PIKA_PDB_EXECUTION_ERROR;
|
|
}
|
|
|
|
if (export == PIKA_EXPORT_EXPORT)
|
|
{
|
|
pika_image_delete (image);
|
|
g_free (drawables);
|
|
}
|
|
|
|
return pika_procedure_new_return_values (procedure, status, error);
|
|
}
|
|
|
|
static PikaImage *
|
|
load_image (GFile *file,
|
|
const gchar *gegl_op,
|
|
GError **error)
|
|
{
|
|
PikaImage *image;
|
|
PikaLayer *layer;
|
|
PikaImageType image_type;
|
|
PikaImageBaseType base_type;
|
|
PikaPrecision precision;
|
|
gint width;
|
|
gint height;
|
|
GeglNode *graph;
|
|
GeglNode *sink;
|
|
GeglNode *source;
|
|
GeglBuffer *src_buf = NULL;
|
|
GeglBuffer *dest_buf = NULL;
|
|
const Babl *format;
|
|
|
|
pika_progress_init_printf (_("Opening '%s'"),
|
|
pika_file_get_utf8_name (file));
|
|
|
|
graph = gegl_node_new ();
|
|
|
|
source = gegl_node_new_child (graph,
|
|
"operation", gegl_op,
|
|
"path", g_file_peek_path (file),
|
|
NULL);
|
|
sink = gegl_node_new_child (graph,
|
|
"operation", "gegl:buffer-sink",
|
|
"buffer", &src_buf,
|
|
NULL);
|
|
|
|
gegl_node_link (source, sink);
|
|
|
|
gegl_node_process (sink);
|
|
|
|
g_object_unref (graph);
|
|
|
|
if (! src_buf)
|
|
{
|
|
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
|
|
_("Could not open '%s'"),
|
|
pika_file_get_utf8_name (file));
|
|
return NULL;
|
|
}
|
|
|
|
pika_progress_update (0.33);
|
|
|
|
width = gegl_buffer_get_width (src_buf);
|
|
height = gegl_buffer_get_height (src_buf);
|
|
format = gegl_buffer_get_format (src_buf);
|
|
|
|
if (babl_format_is_palette (format))
|
|
{
|
|
base_type = PIKA_INDEXED;
|
|
|
|
if (babl_format_has_alpha (format))
|
|
image_type = PIKA_INDEXEDA_IMAGE;
|
|
else
|
|
image_type = PIKA_INDEXED_IMAGE;
|
|
|
|
precision = PIKA_PRECISION_U8_NON_LINEAR;
|
|
}
|
|
else
|
|
{
|
|
const Babl *model = babl_format_get_model (format);
|
|
const Babl *type = babl_format_get_type (format, 0);
|
|
gboolean linear = TRUE;
|
|
|
|
if (model == babl_model ("Y") ||
|
|
model == babl_model ("Y'") ||
|
|
model == babl_model ("YA") ||
|
|
model == babl_model ("Y'A"))
|
|
{
|
|
base_type = PIKA_GRAY;
|
|
|
|
if (babl_format_has_alpha (format))
|
|
image_type = PIKA_GRAYA_IMAGE;
|
|
else
|
|
image_type = PIKA_GRAY_IMAGE;
|
|
|
|
if (model == babl_model ("Y'") ||
|
|
model == babl_model ("Y'A"))
|
|
linear = FALSE;
|
|
}
|
|
else
|
|
{
|
|
base_type = PIKA_RGB;
|
|
|
|
if (babl_format_has_alpha (format))
|
|
image_type = PIKA_RGBA_IMAGE;
|
|
else
|
|
image_type = PIKA_RGB_IMAGE;
|
|
|
|
if (model == babl_model ("R'G'B'") ||
|
|
model == babl_model ("R'G'B'A"))
|
|
linear = FALSE;
|
|
}
|
|
|
|
if (linear)
|
|
{
|
|
if (type == babl_type ("u8"))
|
|
precision = PIKA_PRECISION_U8_LINEAR;
|
|
else if (type == babl_type ("u16"))
|
|
precision = PIKA_PRECISION_U16_LINEAR;
|
|
else if (type == babl_type ("u32"))
|
|
precision = PIKA_PRECISION_U32_LINEAR;
|
|
else if (type == babl_type ("half"))
|
|
precision = PIKA_PRECISION_HALF_LINEAR;
|
|
else
|
|
precision = PIKA_PRECISION_FLOAT_LINEAR;
|
|
}
|
|
else
|
|
{
|
|
if (type == babl_type ("u8"))
|
|
precision = PIKA_PRECISION_U8_NON_LINEAR;
|
|
else if (type == babl_type ("u16"))
|
|
precision = PIKA_PRECISION_U16_NON_LINEAR;
|
|
else if (type == babl_type ("u32"))
|
|
precision = PIKA_PRECISION_U32_NON_LINEAR;
|
|
else if (type == babl_type ("half"))
|
|
precision = PIKA_PRECISION_HALF_NON_LINEAR;
|
|
else
|
|
precision = PIKA_PRECISION_FLOAT_NON_LINEAR;
|
|
}
|
|
}
|
|
|
|
|
|
image = pika_image_new_with_precision (width, height,
|
|
base_type, precision);
|
|
layer = pika_layer_new (image,
|
|
_("Background"),
|
|
width, height,
|
|
image_type,
|
|
100,
|
|
pika_image_get_default_new_layer_mode (image));
|
|
pika_image_insert_layer (image, layer, NULL, 0);
|
|
|
|
dest_buf = pika_drawable_get_buffer (PIKA_DRAWABLE (layer));
|
|
|
|
pika_progress_update (0.66);
|
|
|
|
gegl_buffer_copy (src_buf, NULL, GEGL_ABYSS_NONE, dest_buf, NULL);
|
|
|
|
g_object_unref (src_buf);
|
|
g_object_unref (dest_buf);
|
|
|
|
pika_progress_update (1.0);
|
|
|
|
return image;
|
|
}
|
|
|
|
static gboolean
|
|
save_image (GFile *file,
|
|
const gchar *gegl_op,
|
|
PikaImage *image,
|
|
PikaDrawable *drawable,
|
|
GError **error)
|
|
{
|
|
GeglNode *graph;
|
|
GeglNode *source;
|
|
GeglNode *sink;
|
|
GeglBuffer *src_buf;
|
|
|
|
src_buf = pika_drawable_get_buffer (drawable);
|
|
|
|
graph = gegl_node_new ();
|
|
|
|
source = gegl_node_new_child (graph,
|
|
"operation", "gegl:buffer-source",
|
|
"buffer", src_buf,
|
|
NULL);
|
|
sink = gegl_node_new_child (graph,
|
|
"operation", gegl_op,
|
|
"path", g_file_peek_path (file),
|
|
NULL);
|
|
|
|
gegl_node_link (source, sink);
|
|
|
|
gegl_node_process (sink);
|
|
|
|
g_object_unref (graph);
|
|
g_object_unref (src_buf);
|
|
|
|
return TRUE;
|
|
}
|
