584 lines
17 KiB
C
584 lines
17 KiB
C
/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <string.h>
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#include <gtk/gtk.h>
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#include <libpika/pika.h>
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#include "ppmtool.h"
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#include "infile.h"
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#include "pikaressionist.h"
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#include "preview.h"
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#include "brush.h"
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#include "presets.h"
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#include "random.h"
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#include "orientmap.h"
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#include "size.h"
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#include "libpika/stdplugins-intl.h"
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typedef struct _Pikaressionist Pikaressionist;
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typedef struct _PikaressionistClass PikaressionistClass;
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struct _Pikaressionist
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{
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PikaPlugIn parent_instance;
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};
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struct _PikaressionistClass
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{
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PikaPlugInClass parent_class;
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};
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#define PIKARESSIONIST_TYPE (pikaressionist_get_type ())
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#define PIKARESSIONIST(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), PIKARESSIONIST_TYPE, Pikaressionist))
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GType pikaressionist_get_type (void) G_GNUC_CONST;
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static GList * pikaressionist_query_procedures (PikaPlugIn *plug_in);
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static PikaProcedure * pikaressionist_create_procedure (PikaPlugIn *plug_in,
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const gchar *name);
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static PikaValueArray * pikaressionist_run (PikaProcedure *procedure,
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PikaRunMode run_mode,
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PikaImage *image,
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gint n_drawables,
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PikaDrawable **drawables,
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PikaProcedureConfig *config,
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gpointer run_data);
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static void pikaressionist_main (void);
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G_DEFINE_TYPE (Pikaressionist, pikaressionist, PIKA_TYPE_PLUG_IN)
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PIKA_MAIN (PIKARESSIONIST_TYPE)
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DEFINE_STD_SET_I18N
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static PikaDrawable *drawable;
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static ppm_t infile = { 0, 0, NULL };
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static ppm_t inalpha = { 0, 0, NULL };
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static void
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pikaressionist_class_init (PikaressionistClass *klass)
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{
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PikaPlugInClass *plug_in_class = PIKA_PLUG_IN_CLASS (klass);
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plug_in_class->query_procedures = pikaressionist_query_procedures;
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plug_in_class->create_procedure = pikaressionist_create_procedure;
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plug_in_class->set_i18n = STD_SET_I18N;
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}
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static void
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pikaressionist_init (Pikaressionist *pikaressionist)
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{
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}
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static GList *
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pikaressionist_query_procedures (PikaPlugIn *plug_in)
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{
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return g_list_append (NULL, g_strdup (PLUG_IN_PROC));
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}
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static PikaProcedure *
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pikaressionist_create_procedure (PikaPlugIn *plug_in,
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const gchar *name)
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{
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PikaProcedure *procedure = NULL;
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if (! strcmp (name, PLUG_IN_PROC))
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{
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procedure = pika_image_procedure_new (plug_in, name,
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PIKA_PDB_PROC_TYPE_PLUGIN,
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pikaressionist_run, NULL, NULL);
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pika_procedure_set_image_types (procedure, "RGB*, GRAY*");
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pika_procedure_set_sensitivity_mask (procedure,
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PIKA_PROCEDURE_SENSITIVE_DRAWABLE);
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pika_procedure_set_menu_label (procedure, _("_PIKAressionist..."));
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pika_procedure_add_menu_path (procedure, "<Image>/Filters/Artistic");
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pika_procedure_set_documentation (procedure,
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_("Performs various artistic "
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"operations"),
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_("Performs various artistic operations "
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"on an image"),
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name);
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pika_procedure_set_attribution (procedure,
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"Vidar Madsen <vidar@prosalg.no>",
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"Vidar Madsen",
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PLUG_IN_VERSION);
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PIKA_PROC_ARG_STRING (procedure, "preset",
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_("Preset"),
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_("Preset Name"),
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NULL,
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G_PARAM_READWRITE);
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PIKA_PROC_AUX_ARG_BYTES (procedure, "settings-data",
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"Settings data",
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"TODO: eventually we must implement proper args for every settings",
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PIKA_PARAM_READWRITE);
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}
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return procedure;
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}
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void
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infile_copy_to_ppm (ppm_t * p)
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{
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if (!PPM_IS_INITED (&infile))
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grabarea ();
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ppm_copy (&infile, p);
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}
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void
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infile_copy_alpha_to_ppm (ppm_t * p)
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{
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ppm_copy (&inalpha, p);
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}
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static PikaValueArray *
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pikaressionist_run (PikaProcedure *procedure,
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PikaRunMode run_mode,
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PikaImage *image,
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gint n_drawables,
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PikaDrawable **drawables,
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PikaProcedureConfig *config,
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gpointer run_data)
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{
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GBytes *settings_bytes = NULL;
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gchar *preset_name = NULL;
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gegl_init (NULL, NULL);
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if (n_drawables != 1)
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{
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GError *error = NULL;
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g_set_error (&error, PIKA_PLUG_IN_ERROR, 0,
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_("Procedure '%s' only works with one drawable."),
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pika_procedure_get_name (procedure));
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return pika_procedure_new_return_values (procedure,
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PIKA_PDB_CALLING_ERROR,
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error);
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}
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else
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{
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drawable = drawables[0];
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}
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img_has_alpha = pika_drawable_has_alpha (drawable);
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random_generator = g_rand_new ();
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{
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gint x1, y1, width, height;
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if (! pika_drawable_mask_intersect (drawable,
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&x1, &y1, &width, &height))
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{
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return pika_procedure_new_return_values (procedure,
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PIKA_PDB_SUCCESS,
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NULL);
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}
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}
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restore_default_values ();
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/* Temporary code replacing legacy pika_[gs]et_data() using an AUX argument.
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* This doesn't actually fix the "Reset to initial values|factory defaults"
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* features, but at least makes per-run value storage work.
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* TODO: eventually we want proper separate arguments as a complete fix.
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*/
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g_object_get (config, "settings-data", &settings_bytes, NULL);
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if (settings_bytes != NULL && g_bytes_get_size (settings_bytes) == sizeof (pikaressionist_vals_t))
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pcvals = *((pikaressionist_vals_t *) g_bytes_get_data (settings_bytes, NULL));
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g_bytes_unref (settings_bytes);
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switch (run_mode)
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{
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case PIKA_RUN_INTERACTIVE:
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if (! create_pikaressionist (procedure, config))
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return pika_procedure_new_return_values (procedure,
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PIKA_PDB_CANCEL,
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NULL);
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break;
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case PIKA_RUN_NONINTERACTIVE:
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g_object_get (config,
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"preset", &preset_name,
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NULL);
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if (select_preset (preset_name))
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{
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g_free (preset_name);
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return pika_procedure_new_return_values (procedure,
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PIKA_PDB_EXECUTION_ERROR,
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NULL);
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}
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break;
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case PIKA_RUN_WITH_LAST_VALS:
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break;
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}
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/* It seems that the value of the run variable is stored in the
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* preset. I don't know if it's a bug or a feature, but I just work
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* here and am anxious to get a working version. So I'm setting it
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* to the correct value here.
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*
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* It also seems that defaultpcvals have this erroneous value as
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* well, so it gets set to FALSE as well. Thus it is always set to
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* TRUE upon a non-interactive run. -- Shlomi Fish
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*/
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pcvals.run = TRUE;
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if (pika_drawable_is_rgb (drawable) ||
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pika_drawable_is_gray (drawable))
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{
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pikaressionist_main ();
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if (run_mode != PIKA_RUN_NONINTERACTIVE)
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pika_displays_flush ();
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}
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else
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{
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return pika_procedure_new_return_values (procedure,
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PIKA_PDB_EXECUTION_ERROR,
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NULL);
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}
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settings_bytes = g_bytes_new (&pcvals, sizeof (pikaressionist_vals_t));
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g_object_set (config, "settings-data", settings_bytes, NULL);
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g_bytes_unref (settings_bytes);
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/* Resources Cleanup */
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g_free (preset_name);
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g_rand_free (random_generator);
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free_parsepath_cache ();
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brush_reload (NULL, NULL);
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preview_free_resources ();
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brush_free ();
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preset_free ();
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orientation_map_free_resources ();
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size_map_free_resources ();
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return pika_procedure_new_return_values (procedure, PIKA_PDB_SUCCESS, NULL);
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}
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static const Babl *
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get_u8_format (PikaDrawable *drawable)
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{
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if (pika_drawable_is_rgb (drawable))
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{
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if (pika_drawable_has_alpha (drawable))
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return babl_format ("R'G'B'A u8");
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else
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return babl_format ("R'G'B' u8");
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}
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else
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{
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if (pika_drawable_has_alpha (drawable))
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return babl_format ("Y'A u8");
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else
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return babl_format ("Y' u8");
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}
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}
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void
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grabarea (void)
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{
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GeglBuffer *src_buffer;
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GeglBufferIterator *iter;
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const Babl *format;
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gint bpp;
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ppm_t *p;
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gint x1, y1;
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gint x, y;
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gint width, height;
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gint row, col;
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gint rowstride;
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if (! pika_drawable_mask_intersect (drawable,
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&x1, &y1, &width, &height))
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return;
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ppm_new (&infile, width, height);
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p = &infile;
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format = get_u8_format (drawable);
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bpp = babl_format_get_bytes_per_pixel (format);
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if (pika_drawable_has_alpha (drawable))
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ppm_new (&inalpha, width, height);
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rowstride = p->width * 3;
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src_buffer = pika_drawable_get_buffer (drawable);
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iter = gegl_buffer_iterator_new (src_buffer,
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GEGL_RECTANGLE (x1, y1, width, height), 0,
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format,
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GEGL_ACCESS_READ, GEGL_ABYSS_NONE, 1);
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while (gegl_buffer_iterator_next (iter))
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{
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GeglRectangle roi = iter->items[0].roi;
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const guchar *src = iter->items[0].data;
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switch (bpp)
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{
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case 1:
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for (y = 0, row = roi.y - y1; y < roi.height; y++, row++)
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{
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const guchar *s = src;
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guchar *tmprow = p->col + row * rowstride;
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for (x = 0, col = roi.x - x1; x < roi.width; x++, col++)
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{
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gint k = col * 3;
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tmprow[k + 0] = s[0];
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tmprow[k + 1] = s[0];
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tmprow[k + 2] = s[0];
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s++;
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}
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src += bpp * roi.width;
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}
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break;
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case 2:
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for (y = 0, row = roi.y - y1; y < roi.height; y++, row++)
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{
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const guchar *s = src;
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guchar *tmprow = p->col + row * rowstride;
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guchar *tmparow = inalpha.col + row * rowstride;
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for (x = 0, col = roi.x - x1; x < roi.width; x++, col++)
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{
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gint k = col * 3;
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tmprow[k + 0] = s[0];
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tmprow[k + 1] = s[0];
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tmprow[k + 2] = s[0];
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tmparow[k] = 255 - s[1];
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s += 2;
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}
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src += bpp * roi.width;
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}
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break;
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case 3:
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col = roi.x - x1;
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for (y = 0, row = roi.y - y1; y < roi.height; y++, row++)
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{
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memcpy (p->col + row * rowstride + col * 3, src, roi.width * 3);
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src += bpp * roi.width;
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}
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break;
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case 4:
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for (y = 0, row = roi.y - y1; y < roi.height; y++, row++)
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{
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const guchar *s = src;
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guchar *tmprow = p->col + row * rowstride;
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guchar *tmparow = inalpha.col + row * rowstride;
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for (x = 0, col = roi.x - x1; x < roi.width; x++, col++)
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{
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gint k = col * 3;
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tmprow[k + 0] = s[0];
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tmprow[k + 1] = s[1];
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tmprow[k + 2] = s[2];
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tmparow[k] = 255 - s[3];
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s += 4;
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}
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src += bpp * roi.width;
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}
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break;
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}
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}
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g_object_unref (src_buffer);
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}
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static void
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pikaressionist_main (void)
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{
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GeglBuffer *dest_buffer;
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GeglBufferIterator *iter;
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const Babl *format;
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gint bpp;
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ppm_t *p;
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gint x1, y1;
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gint x, y;
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gint width, height;
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gint row, col;
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gint rowstride;
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glong done = 0;
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glong total;
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if (! pika_drawable_mask_intersect (drawable,
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&x1, &y1, &width, &height))
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return;
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total = width * height;
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format = get_u8_format (drawable);
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bpp = babl_format_get_bytes_per_pixel (format);
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pika_progress_init (_("Painting"));
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if (! PPM_IS_INITED (&infile))
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grabarea ();
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repaint (&infile, (img_has_alpha) ? &inalpha : NULL);
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p = &infile;
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rowstride = p->width * 3;
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dest_buffer = pika_drawable_get_shadow_buffer (drawable);
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|
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iter = gegl_buffer_iterator_new (dest_buffer,
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GEGL_RECTANGLE (x1, y1, width, height), 0,
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format,
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GEGL_ACCESS_WRITE, GEGL_ABYSS_NONE, 1);
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|
|
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while (gegl_buffer_iterator_next (iter))
|
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{
|
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GeglRectangle roi = iter->items[0].roi;
|
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guchar *dest = iter->items[0].data;
|
|
|
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switch (bpp)
|
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{
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case 1:
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for (y = 0, row = roi.y - y1; y < roi.height; y++, row++)
|
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{
|
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guchar *d = dest;
|
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const guchar *tmprow = p->col + row * rowstride;
|
|
|
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for (x = 0, col = roi.x - x1; x < roi.width; x++, col++)
|
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{
|
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gint k = col * 3;
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|
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*d++ = PIKA_RGB_LUMINANCE (tmprow[k + 0],
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tmprow[k + 1],
|
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tmprow[k + 2]);
|
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}
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|
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dest += bpp * roi.width;
|
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}
|
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break;
|
|
|
|
case 2:
|
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for (y = 0, row = roi.y - y1; y < roi.height; y++, row++)
|
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{
|
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guchar *d = dest;
|
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const guchar *tmprow = p->col + row * rowstride;
|
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const guchar *tmparow = inalpha.col + row * rowstride;
|
|
|
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for (x = 0, col = roi.x - x1; x < roi.width; x++, col++)
|
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{
|
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gint k = col * 3;
|
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gint value = PIKA_RGB_LUMINANCE (tmprow[k + 0],
|
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tmprow[k + 1],
|
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tmprow[k + 2]);
|
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|
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d[0] = value;
|
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d[1] = 255 - tmparow[k];
|
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|
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d += 2;
|
|
}
|
|
|
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dest += bpp * roi.width;
|
|
}
|
|
break;
|
|
|
|
case 3:
|
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col = roi.x - x1;
|
|
|
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for (y = 0, row = roi.y - y1; y < roi.height; y++, row++)
|
|
{
|
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memcpy (dest, p->col + row * rowstride + col * 3, roi.width * 3);
|
|
|
|
dest += bpp * roi.width;
|
|
}
|
|
break;
|
|
|
|
case 4:
|
|
for (y = 0, row = roi.y - y1; y < roi.height; y++, row++)
|
|
{
|
|
guchar *d = dest;
|
|
const guchar *tmprow = p->col + row * rowstride;
|
|
const guchar *tmparow = inalpha.col + row * rowstride;
|
|
|
|
for (x = 0, col = roi.x - x1; x < roi.width; x++, col++)
|
|
{
|
|
gint k = col * 3;
|
|
|
|
d[0] = tmprow[k + 0];
|
|
d[1] = tmprow[k + 1];
|
|
d[2] = tmprow[k + 2];
|
|
d[3] = 255 - tmparow[k];
|
|
|
|
d += 4;
|
|
}
|
|
|
|
dest += bpp * roi.width;
|
|
}
|
|
break;
|
|
}
|
|
|
|
done += roi.width * roi.height;
|
|
|
|
pika_progress_update (0.8 + 0.2 * done / total);
|
|
}
|
|
|
|
g_object_unref (dest_buffer);
|
|
|
|
pika_progress_update (1.0);
|
|
|
|
pika_drawable_merge_shadow (drawable, TRUE);
|
|
pika_drawable_update (drawable, x1, y1, width, height);
|
|
}
|
