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

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/* 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-webp - WebP file format plug-in for the PIKA
* Copyright (C) 2015 Nathan Osman
* Copyright (C) 2016 Ben Touchette
*
* 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 <string.h>
#include <libpika/pika.h>
#include <libpika/pikaui.h>
#include <webp/encode.h>
#include "file-webp-dialog.h"
#include "file-webp-load.h"
#include "file-webp-save.h"
#include "file-webp.h"
#include "libpika/stdplugins-intl.h"
typedef struct _Webp Webp;
typedef struct _WebpClass WebpClass;
struct _Webp
{
PikaPlugIn parent_instance;
};
struct _WebpClass
{
PikaPlugInClass parent_class;
};
#define WEBP_TYPE (webp_get_type ())
#define WEBP(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), WEBP_TYPE, Webp))
GType webp_get_type (void) G_GNUC_CONST;
static GList * webp_query_procedures (PikaPlugIn *plug_in);
static PikaProcedure * webp_create_procedure (PikaPlugIn *plug_in,
const gchar *name);
static PikaValueArray * webp_load (PikaProcedure *procedure,
PikaRunMode run_mode,
GFile *file,
PikaMetadata *metadata,
PikaMetadataLoadFlags *flags,
PikaProcedureConfig *config,
gpointer run_data);
static PikaValueArray * webp_save (PikaProcedure *procedure,
PikaRunMode run_mode,
PikaImage *image,
gint n_drawables,
PikaDrawable **drawables,
GFile *file,
PikaMetadata *metadata,
PikaProcedureConfig *config,
gpointer run_data);
G_DEFINE_TYPE (Webp, webp, PIKA_TYPE_PLUG_IN)
PIKA_MAIN (WEBP_TYPE)
DEFINE_STD_SET_I18N
static void
webp_class_init (WebpClass *klass)
{
PikaPlugInClass *plug_in_class = PIKA_PLUG_IN_CLASS (klass);
plug_in_class->query_procedures = webp_query_procedures;
plug_in_class->create_procedure = webp_create_procedure;
plug_in_class->set_i18n = STD_SET_I18N;
}
static void
webp_init (Webp *webp)
{
}
static GList *
webp_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 *
webp_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,
webp_load, NULL, NULL);
pika_procedure_set_menu_label (procedure, _("WebP image"));
pika_procedure_set_documentation (procedure,
"Loads images in the WebP file format",
"Loads images in the WebP file format",
name);
pika_procedure_set_attribution (procedure,
"Nathan Osman, Ben Touchette",
"(C) 2015-2016 Nathan Osman, "
"(C) 2016 Ben Touchette",
"2015,2016");
pika_file_procedure_set_mime_types (PIKA_FILE_PROCEDURE (procedure),
"image/webp");
pika_file_procedure_set_extensions (PIKA_FILE_PROCEDURE (procedure),
"webp");
pika_file_procedure_set_magics (PIKA_FILE_PROCEDURE (procedure),
"8,string,WEBP");
}
else if (! strcmp (name, SAVE_PROC))
{
procedure = pika_save_procedure_new (plug_in, name,
PIKA_PDB_PROC_TYPE_PLUGIN,
TRUE, webp_save, NULL, NULL);
pika_procedure_set_image_types (procedure, "*");
pika_procedure_set_menu_label (procedure, _("WebP image"));
pika_procedure_set_documentation (procedure,
"Saves files in the WebP image format",
"Saves files in the WebP image format",
name);
pika_procedure_set_attribution (procedure,
"Nathan Osman, Ben Touchette",
"(C) 2015-2016 Nathan Osman, "
"(C) 2016 Ben Touchette",
"2015,2016");
pika_file_procedure_set_format_name (PIKA_FILE_PROCEDURE (procedure),
_("WebP"));
pika_file_procedure_set_mime_types (PIKA_FILE_PROCEDURE (procedure),
"image/webp");
pika_file_procedure_set_extensions (PIKA_FILE_PROCEDURE (procedure),
"webp");
PIKA_PROC_ARG_INT (procedure, "preset",
_("Source _type"),
_("WebP encoder preset (Default=0, Picture=1, Photo=2, Drawing=3, "
"Icon=4, Text=5)"),
0, 5, WEBP_PRESET_DEFAULT,
G_PARAM_READWRITE);
PIKA_PROC_ARG_BOOLEAN (procedure, "lossless",
_("L_ossless"),
_("Use lossless encoding"),
FALSE,
G_PARAM_READWRITE);
PIKA_PROC_ARG_DOUBLE (procedure, "quality",
_("Image _quality"),
_("Quality of the image"),
0, 100, 90,
G_PARAM_READWRITE);
PIKA_PROC_ARG_DOUBLE (procedure, "alpha-quality",
_("Alpha q_uality"),
_("Quality of the image's alpha channel"),
0, 100, 100,
G_PARAM_READWRITE);
PIKA_PROC_ARG_BOOLEAN (procedure, "use-sharp-yuv",
_("Use Sharp YU_V"),
/* TRANSLATORS: \xe2\x86\x92 is a Unicode
* "Rightward Arrow" in UTF-8 encoding.
*/
_("Use sharper (but slower) RGB\xe2\x86\x92YUV conversion"),
FALSE,
G_PARAM_READWRITE);
PIKA_PROC_ARG_BOOLEAN (procedure, "animation-loop",
_("Loop _forever"),
_("Loop animation infinitely"),
TRUE,
G_PARAM_READWRITE);
PIKA_PROC_ARG_BOOLEAN (procedure, "minimize-size",
_("_Minimize output size (slower)"),
_("Minimize output file size"),
TRUE,
G_PARAM_READWRITE);
PIKA_PROC_ARG_INT (procedure, "keyframe-distance",
_("Max distance between _key-frames"),
_("Maximum distance between keyframes"),
0, G_MAXINT, 50,
G_PARAM_READWRITE);
PIKA_PROC_ARG_INT (procedure, "default-delay",
_("_Default delay between frames"),
_("Default delay (in milliseconds) to use when timestamps"
" for frames are not available or forced."),
0, G_MAXINT, 200,
G_PARAM_READWRITE);
PIKA_PROC_ARG_BOOLEAN (procedure, "force-delay",
_("Use default dela_y for all frames"),
_("Force default delay on all frames"),
FALSE,
G_PARAM_READWRITE);
PIKA_PROC_ARG_BOOLEAN (procedure, "animation",
_("Save a_nimation"),
_("Use layers for animation"),
FALSE,
G_PARAM_READWRITE);
pika_save_procedure_set_support_exif (PIKA_SAVE_PROCEDURE (procedure), TRUE);
pika_save_procedure_set_support_iptc (PIKA_SAVE_PROCEDURE (procedure), TRUE);
pika_save_procedure_set_support_xmp (PIKA_SAVE_PROCEDURE (procedure), TRUE);
pika_save_procedure_set_support_profile (PIKA_SAVE_PROCEDURE (procedure), TRUE);
pika_save_procedure_set_support_thumbnail (PIKA_SAVE_PROCEDURE (procedure), TRUE);
}
return procedure;
}
static PikaValueArray *
webp_load (PikaProcedure *procedure,
PikaRunMode run_mode,
GFile *file,
PikaMetadata *metadata,
PikaMetadataLoadFlags *flags,
PikaProcedureConfig *config,
gpointer run_data)
{
PikaValueArray *return_vals;
PikaImage *image;
GError *error = NULL;
gegl_init (NULL, NULL);
image = load_image (file, FALSE, flags, &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 *
webp_save (PikaProcedure *procedure,
PikaRunMode run_mode,
PikaImage *image,
gint n_drawables,
PikaDrawable **drawables,
GFile *file,
PikaMetadata *metadata,
PikaProcedureConfig *config,
gpointer run_data)
{
PikaPDBStatusType status = PIKA_PDB_SUCCESS;
PikaExportReturn export = PIKA_EXPORT_CANCEL;
gboolean animation;
GError *error = NULL;
gegl_init (NULL, NULL);
if (run_mode == PIKA_RUN_INTERACTIVE ||
run_mode == PIKA_RUN_WITH_LAST_VALS)
pika_ui_init (PLUG_IN_BINARY);
if (run_mode == PIKA_RUN_INTERACTIVE)
{
if (! save_dialog (image, procedure, G_OBJECT (config)))
return pika_procedure_new_return_values (procedure,
PIKA_PDB_CANCEL,
NULL);
}
g_object_get (config,
"animation", &animation,
NULL);
if (run_mode == PIKA_RUN_INTERACTIVE ||
run_mode == PIKA_RUN_WITH_LAST_VALS)
{
PikaExportCapabilities capabilities = (PIKA_EXPORT_CAN_HANDLE_RGB |
PIKA_EXPORT_CAN_HANDLE_GRAY |
PIKA_EXPORT_CAN_HANDLE_INDEXED |
PIKA_EXPORT_CAN_HANDLE_ALPHA);
if (animation)
capabilities |= PIKA_EXPORT_CAN_HANDLE_LAYERS_AS_ANIMATION;
export = pika_export_image (&image, &n_drawables, &drawables, "WebP",
capabilities);
if (export == PIKA_EXPORT_CANCEL)
return pika_procedure_new_return_values (procedure,
PIKA_PDB_CANCEL,
NULL);
}
if (animation)
{
if (! save_animation (file, image, n_drawables, drawables, G_OBJECT (config),
&error))
{
status = PIKA_PDB_EXECUTION_ERROR;
}
}
else
{
if (n_drawables != 1)
{
g_set_error (&error, G_FILE_ERROR, 0,
_("The WebP plug-in cannot export multiple layer, except in animation mode."));
return pika_procedure_new_return_values (procedure,
PIKA_PDB_CALLING_ERROR,
error);
}
if (! save_layer (file, image, drawables[0], G_OBJECT (config),
&error))
{
status = PIKA_PDB_EXECUTION_ERROR;
}
}
if (status == PIKA_PDB_SUCCESS && metadata)
{
gboolean save_xmp;
/* WebP doesn't support iptc natively and sets it via xmp */
g_object_get (config,
"save-xmp", &save_xmp,
NULL);
g_object_set (config,
"save-iptc", save_xmp,
NULL);
pika_metadata_set_bits_per_sample (metadata, 8);
}
if (export == PIKA_EXPORT_EXPORT)
{
pika_image_delete (image);
g_free (drawables);
}
return pika_procedure_new_return_values (procedure, status, error);
}
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