2023-09-26 00:35:21 +02:00
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/*
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* jigsaw - a plug-in for PIKA
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*
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* Copyright (C) Nigel Wetten
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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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* Contact info: nigel@cs.nwu.edu
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*
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* Version: 1.0.0
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*
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* Version: 1.0.1
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*
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* tim coppefield [timecop@japan.co.jp]
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*
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* Added dynamic preview mode.
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*
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* Damn, this plugin is the tightest piece of code I ever seen.
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* I wish all filters in the plugins operated on guchar *buffer
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* of the entire image :) sweet stuff.
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*
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*/
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#include "config.h"
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#include <string.h>
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#include <libpika/pika.h>
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#include <libpika/pikaui.h>
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#include "libpika/stdplugins-intl.h"
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#define PLUG_IN_PROC "plug-in-jigsaw"
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#define PLUG_IN_BINARY "jigsaw"
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#define PLUG_IN_ROLE "pika-jigsaw"
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typedef enum
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{
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BEZIER_1,
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BEZIER_2
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} style_t;
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typedef enum
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{
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LEFT,
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RIGHT,
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UP,
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DOWN
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} bump_t;
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#define XFACTOR2 0.0833
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#define XFACTOR3 0.2083
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#define XFACTOR4 0.2500
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#define XFACTOR5 0.2500
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#define XFACTOR6 0.2083
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#define XFACTOR7 0.0833
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#define YFACTOR2 0.1000
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#define YFACTOR3 0.2200
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#define YFACTOR4 0.1000
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#define YFACTOR5 0.1000
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#define YFACTOR6 0.4666
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#define YFACTOR7 0.1000
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#define YFACTOR8 0.2000
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#define MAX_VALUE 255
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#define MIN_VALUE 0
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#define DELTA 0.15
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#define BLACK_R 30
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#define BLACK_G 30
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#define BLACK_B 30
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#define WALL_XFACTOR2 0.05
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#define WALL_XFACTOR3 0.05
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#define WALL_YFACTOR2 0.05
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#define WALL_YFACTOR3 0.05
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#define WALL_XCONS2 0.2
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#define WALL_XCONS3 0.3
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#define WALL_YCONS2 0.2
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#define WALL_YCONS3 0.3
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#define FUDGE 1.2
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#define MIN_XTILES 1
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#define MAX_XTILES 20
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#define MIN_YTILES 1
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#define MAX_YTILES 20
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#define MIN_BLEND_LINES 0
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#define MAX_BLEND_LINES 10
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#define MIN_BLEND_AMOUNT 0
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#define MAX_BLEND_AMOUNT 1.0
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#define DRAW_POINT(buffer, bufsize, index) \
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do \
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{ \
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if ((index) >= 0 && (index) + 2 < (bufsize)) \
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{ \
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buffer[(index) + 0] = BLACK_R; \
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buffer[(index) + 1] = BLACK_G; \
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buffer[(index) + 2] = BLACK_B; \
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} \
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} \
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while (0)
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#define DARKEN_POINT(buffer, bufsize, index, delta, temp) \
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do \
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{ \
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if ((index) >= 0 && (index) + 2 < (bufsize)) \
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{ \
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temp = MAX (buffer[(index) + 0] * (1.0 - (delta)), MIN_VALUE); \
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buffer[(index) + 0] = temp; \
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temp = MAX (buffer[(index) + 1] * (1.0 - (delta)), MIN_VALUE); \
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buffer[(index) + 1] = temp; \
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temp = MAX (buffer[(index) + 2] * (1.0 - (delta)), MIN_VALUE); \
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buffer[(index) + 2] = temp; \
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} \
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} \
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while (0)
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#define LIGHTEN_POINT(buffer, bufsize, index, delta, temp) \
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do \
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{ \
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if ((index) >= 0 && (index) + 2 < (bufsize)) \
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{ \
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temp = MIN (buffer[(index) + 0] * (1.0 + (delta)), MAX_VALUE); \
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buffer[(index) + 0] = temp; \
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temp = MIN (buffer[(index) + 1] * (1.0 + (delta)), MAX_VALUE); \
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buffer[(index) + 1] = temp; \
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temp = MIN (buffer[(index) + 2] * (1.0 + (delta)), MAX_VALUE); \
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buffer[(index) + 2] = temp; \
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} \
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} \
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while (0)
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typedef struct globals_tag globals_t;
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struct globals_tag
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{
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gint *cachex1[4];
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gint *cachex2[4];
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gint *cachey1[4];
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gint *cachey2[4];
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gint steps[4];
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gint *gridx;
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gint *gridy;
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gint **blend_outer_cachex1[4];
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gint **blend_outer_cachex2[4];
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gint **blend_outer_cachey1[4];
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gint **blend_outer_cachey2[4];
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gint **blend_inner_cachex1[4];
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gint **blend_inner_cachex2[4];
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gint **blend_inner_cachey1[4];
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gint **blend_inner_cachey2[4];
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};
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typedef struct _Jigsaw Jigsaw;
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typedef struct _JigsawClass JigsawClass;
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struct _Jigsaw
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{
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PikaPlugIn parent_instance;
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};
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struct _JigsawClass
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{
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PikaPlugInClass parent_class;
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};
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#define JIGSAW_TYPE (jigsaw_get_type ())
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2023-10-30 23:55:30 +01:00
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#define JIGSAW(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), JIGSAW_TYPE, Jigsaw))
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2023-09-26 00:35:21 +02:00
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GType jigsaw_get_type (void) G_GNUC_CONST;
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static GList * jigsaw_query_procedures (PikaPlugIn *plug_in);
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static PikaProcedure * jigsaw_create_procedure (PikaPlugIn *plug_in,
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const gchar *name);
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static PikaValueArray * jigsaw_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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2023-10-30 23:55:30 +01:00
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PikaProcedureConfig *config,
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2023-09-26 00:35:21 +02:00
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gpointer run_data);
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static void jigsaw (GObject *config,
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PikaDrawable *drawable,
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PikaPreview *preview);
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static void jigsaw_preview (GtkWidget *widget,
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GObject *config);
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static gboolean jigsaw_dialog (PikaProcedure *procedure,
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GObject *config,
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PikaDrawable *drawable);
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static void draw_jigsaw (GObject *config,
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guchar *buffer,
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gint bufsize,
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gint width,
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gint height,
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gint bytes,
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gboolean preview_mode);
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static void draw_vertical_border (guchar *buffer, gint bufsize,
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gint width, gint height,
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gint bytes, gint x_offset, gint ytiles,
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gint blend_lines, gdouble blend_amount);
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static void draw_horizontal_border (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint y_offset, gint xtiles,
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gint blend_lines, gdouble blend_amount);
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static void draw_vertical_line (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint px[2], gint py[2]);
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static void draw_horizontal_line (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint px[2], gint py[2]);
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static void darken_vertical_line (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint px[2], gint py[2], gdouble delta);
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static void lighten_vertical_line (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint px[2], gint py[2], gdouble delta);
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static void darken_horizontal_line (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint px[2], gint py[2], gdouble delta);
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static void lighten_horizontal_line(guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint px[2], gint py[2], gdouble delta);
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static void draw_right_bump (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint x_offset, gint curve_start_offset,
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gint steps);
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static void draw_left_bump (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint x_offset, gint curve_start_offset,
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gint steps);
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static void draw_up_bump (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint y_offset, gint curve_start_offset,
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gint steps);
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static void draw_down_bump (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint y_offset, gint curve_start_offset,
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gint steps);
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static void darken_right_bump (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint x_offset, gint curve_start_offset,
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gint steps, gdouble delta, gint counter);
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static void lighten_right_bump (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint x_offset, gint curve_start_offset,
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gint steps, gdouble delta, gint counter);
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static void darken_left_bump (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint x_offset, gint curve_start_offset,
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gint steps, gdouble delta, gint counter);
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static void lighten_left_bump (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint x_offset, gint curve_start_offset,
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gint steps, gdouble delta, gint counter);
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static void darken_up_bump (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint y_offset, gint curve_start_offest,
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gint steps, gdouble delta, gint counter);
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static void lighten_up_bump (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint y_offset, gint curve_start_offset,
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gint steps, gdouble delta, gint counter);
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static void darken_down_bump (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint y_offset, gint curve_start_offset,
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gint steps, gdouble delta, gint counter);
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static void lighten_down_bump (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint y_offset, gint curve_start_offset,
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gint steps, gdouble delta, gint counter);
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static void generate_grid (gint width, gint height, gint xtiles, gint ytiles,
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gint *x, gint *y);
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static void generate_bezier (gint px[4], gint py[4], gint steps,
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gint *cachex, gint *cachey);
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static void malloc_cache (gint blend_lines);
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static void free_cache (gint blend_lines);
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static void init_right_bump (gint x,
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gint y,
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gint blend_lines,
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gint width,
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gint height);
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static void init_left_bump (gint x,
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gint y,
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gint blend_lines,
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gint width,
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gint height);
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static void init_up_bump (gint x,
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gint y,
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gint blend_lines,
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gint width,
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gint height);
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static void init_down_bump (gint x,
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gint y,
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gint blend_lines,
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gint width,
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gint height);
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static void draw_bezier_line (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint steps, gint *cx, gint *cy);
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static void darken_bezier_line (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint x_offset, gint y_offset, gint steps,
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gint *cx, gint *cy, gdouble delta);
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static void lighten_bezier_line (guchar *buffer, gint bufsize,
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gint width, gint bytes,
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gint x_offset, gint y_offset, gint steps,
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gint *cx, gint *cy, gdouble delta);
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static void draw_bezier_vertical_border (guchar *buffer, gint bufsize,
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gint width, gint height,
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gint bytes,
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gint x_offset, gint xtiles,
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gint ytiles, gint blend_lines,
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gdouble blend_amount, gint steps);
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static void draw_bezier_horizontal_border (guchar *buffer, gint bufsize,
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gint width, gint height,
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gint bytes,
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gint x_offset, gint xtiles,
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gint ytiles, gint blend_lines,
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gdouble blend_amount, gint steps);
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G_DEFINE_TYPE (Jigsaw, jigsaw, PIKA_TYPE_PLUG_IN)
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PIKA_MAIN (JIGSAW_TYPE)
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DEFINE_STD_SET_I18N
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static globals_t globals;
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static void
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jigsaw_class_init (JigsawClass *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 = jigsaw_query_procedures;
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plug_in_class->create_procedure = jigsaw_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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jigsaw_init (Jigsaw *jigsaw)
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{
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}
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static GList *
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jigsaw_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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jigsaw_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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jigsaw_run, NULL, NULL);
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pika_procedure_set_image_types (procedure, "RGB*");
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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, _("_Jigsaw..."));
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pika_procedure_add_menu_path (procedure,
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"<Image>/Filters/Render/Pattern");
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pika_procedure_set_documentation (procedure,
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_("Add a jigsaw-puzzle pattern "
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"to the image"),
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_("Jigsaw puzzle look"),
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name);
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pika_procedure_set_attribution (procedure,
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"Nigel Wetten",
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"Nigel Wetten",
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"May 2000");
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PIKA_PROC_ARG_INT (procedure, "x",
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_("_Horizontal"),
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_("Number of pieces going across"),
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MIN_XTILES, MAX_XTILES, 5,
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G_PARAM_READWRITE);
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PIKA_PROC_ARG_INT (procedure, "y",
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_("_Vertical"),
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_("Number of pieces going down"),
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MIN_YTILES, MAX_YTILES, 5,
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G_PARAM_READWRITE);
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PIKA_PROC_ARG_INT (procedure, "style",
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_("Jigsaw Style"),
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_("The style/shape of the jigsaw puzzle "
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"{ Square (0), Curved (1) }"),
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0, 1, BEZIER_1,
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G_PARAM_READWRITE);
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PIKA_PROC_ARG_INT (procedure, "blend-lines",
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_("_Blend width"),
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_("Degree of slope of each piece's edge"),
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MIN_BLEND_LINES, MAX_BLEND_LINES, 3,
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G_PARAM_READWRITE);
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PIKA_PROC_ARG_DOUBLE (procedure, "blend-amount",
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_("Hi_ghlight"),
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_("The amount of highlighting on the edges "
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"of each piece"),
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MIN_BLEND_AMOUNT, MAX_BLEND_AMOUNT, 0.5,
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G_PARAM_READWRITE);
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}
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return procedure;
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}
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static PikaValueArray *
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jigsaw_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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2023-10-30 23:55:30 +01:00
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PikaProcedureConfig *config,
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2023-09-26 00:35:21 +02:00
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gpointer run_data)
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{
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2023-10-30 23:55:30 +01:00
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PikaDrawable *drawable;
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2023-09-26 00:35:21 +02:00
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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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PLUG_IN_PROC);
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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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2023-10-30 23:55:30 +01:00
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if (run_mode == PIKA_RUN_INTERACTIVE && ! jigsaw_dialog (procedure, G_OBJECT (config), drawable))
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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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2023-09-26 00:35:21 +02:00
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pika_progress_init (_("Assembling jigsaw"));
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jigsaw (G_OBJECT (config), drawable, NULL);
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if (run_mode != PIKA_RUN_NONINTERACTIVE)
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pika_displays_flush ();
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return pika_procedure_new_return_values (procedure, PIKA_PDB_SUCCESS, NULL);
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}
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static void
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jigsaw (GObject *config,
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PikaDrawable *drawable,
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PikaPreview *preview)
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{
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GeglBuffer *gegl_buffer = NULL;
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const Babl *format = NULL;
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guchar *buffer;
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gint width;
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gint height;
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gint bytes;
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gsize buffer_size;
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gint x;
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gint y;
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gint blend_lines;
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g_object_get (config,
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"x", &x,
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"y", &y,
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"blend-lines", &blend_lines,
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NULL);
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if (preview)
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{
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GBytes *buffer_bytes;
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pika_preview_get_size (preview, &width, &height);
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buffer_bytes = pika_drawable_get_thumbnail_data (drawable,
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width, height,
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&width, &height, &bytes);
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buffer = g_bytes_unref_to_data (buffer_bytes, &buffer_size);
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}
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else
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{
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gegl_buffer = pika_drawable_get_buffer (drawable);
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width = pika_drawable_get_width (drawable);
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height = pika_drawable_get_height (drawable);
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if (pika_drawable_has_alpha (drawable))
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format = babl_format ("R'G'B'A u8");
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else
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format = babl_format ("R'G'B' u8");
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bytes = babl_format_get_bytes_per_pixel (format);
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/* setup image buffer */
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buffer_size = (gsize) bytes * width * height;
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buffer = g_new (guchar, buffer_size);
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gegl_buffer_get (gegl_buffer, GEGL_RECTANGLE (0, 0, width, height), 1.0,
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format, buffer,
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GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
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g_object_unref (gegl_buffer);
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}
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globals.steps[LEFT] = globals.steps[RIGHT] = globals.steps[UP]
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= globals.steps[DOWN] = (x < y) ?
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(width / x * 2) : (height / y * 2);
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malloc_cache (blend_lines);
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draw_jigsaw (config, buffer, buffer_size, width, height, bytes,
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preview != NULL);
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free_cache (blend_lines);
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/* cleanup */
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if (preview)
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{
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pika_preview_draw_buffer (preview, buffer, width * bytes);
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}
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else
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{
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gegl_buffer = pika_drawable_get_shadow_buffer (drawable);
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gegl_buffer_set (gegl_buffer, GEGL_RECTANGLE (0, 0, width, height), 0,
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format, buffer,
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GEGL_AUTO_ROWSTRIDE);
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g_object_unref (gegl_buffer);
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pika_drawable_merge_shadow (drawable, TRUE);
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pika_drawable_update (drawable, 0, 0, width, height);
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}
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g_free (buffer);
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}
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static void
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jigsaw_preview (GtkWidget *widget,
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GObject *config)
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{
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PikaPreview *preview = PIKA_PREVIEW (widget);
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PikaDrawable *drawable = g_object_get_data (config, "drawable");
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jigsaw (config, drawable, preview);
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}
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static void
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generate_bezier (gint px[4],
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gint py[4],
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gint steps,
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gint *cachex,
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gint *cachey)
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{
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gdouble t = 0.0;
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gdouble sigma = 1.0 / steps;
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gint i;
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for (i = 0; i < steps; i++)
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{
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gdouble t2, t3, x, y, t_1;
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t += sigma;
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t2 = t * t;
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t3 = t2 * t;
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t_1 = 1 - t;
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x = t_1 * t_1 * t_1 * px[0]
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+ 3 * t * t_1 * t_1 * px[1]
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+ 3 * t2 * t_1 * px[2]
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+ t3 * px[3];
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y = t_1 * t_1 * t_1 * py[0]
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+ 3 * t * t_1 * t_1 * py[1]
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+ 3 * t2 * t_1 * py[2]
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+ t3 * py[3];
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cachex[i] = (gint) (x + 0.2);
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cachey[i] = (gint) (y + 0.2);
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} /* for */
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}
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static void
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draw_jigsaw (GObject *config,
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guchar *buffer,
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gint bufsize,
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gint width,
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gint height,
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gint bytes,
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gboolean preview_mode)
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{
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gint i;
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gint *x, *y;
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gint xtiles = 5;
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gint ytiles = 5;
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gint xlines = 4;
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gint ylines = 4;
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gint blend_lines = 3;
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gdouble blend_amount = 0.5;
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gint steps = globals.steps[RIGHT];
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style_t style = BEZIER_1;
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gint progress_total = xlines + ylines - 1;
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g_return_if_fail (buffer != NULL);
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g_object_get (config,
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"x", &xtiles,
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"y", &ytiles,
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"blend-lines", &blend_lines,
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"blend-amount", &blend_amount,
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"style", &style,
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NULL);
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xlines = xtiles - 1;
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ylines = ytiles - 1;
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progress_total = xlines + ylines - 1;
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globals.gridx = g_new (gint, xtiles);
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globals.gridy = g_new (gint, ytiles);
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x = globals.gridx;
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y = globals.gridy;
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generate_grid (width, height, xtiles, ytiles, globals.gridx, globals.gridy);
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init_right_bump (xtiles, ytiles, blend_lines, width, height);
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init_left_bump (xtiles, ytiles, blend_lines, width, height);
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init_up_bump (xtiles, ytiles, blend_lines, width, height);
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init_down_bump (xtiles, ytiles, blend_lines, width, height);
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if (style == BEZIER_1)
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{
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for (i = 0; i < xlines; i++)
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{
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draw_vertical_border (buffer, bufsize, width, height, bytes,
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x[i], ytiles,
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blend_lines, blend_amount);
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if (!preview_mode)
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pika_progress_update ((gdouble) i / (gdouble) progress_total);
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}
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for (i = 0; i < ylines; i++)
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{
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draw_horizontal_border (buffer, bufsize, width, bytes, y[i], xtiles,
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blend_lines, blend_amount);
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if (!preview_mode)
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pika_progress_update ((gdouble) (i + xlines) / (gdouble) progress_total);
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}
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}
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else if (style == BEZIER_2)
|
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|
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{
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|
for (i = 0; i < xlines; i++)
|
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|
|
{
|
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|
|
draw_bezier_vertical_border (buffer, bufsize, width, height, bytes,
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x[i], xtiles, ytiles, blend_lines,
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blend_amount, steps);
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if (!preview_mode)
|
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pika_progress_update ((gdouble) i / (gdouble) progress_total);
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}
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for (i = 0; i < ylines; i++)
|
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|
|
{
|
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|
draw_bezier_horizontal_border (buffer, bufsize, width, height, bytes,
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|
|
y[i], xtiles, ytiles, blend_lines,
|
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|
|
blend_amount, steps);
|
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|
|
if (!preview_mode)
|
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|
pika_progress_update ((gdouble) (i + xlines) / (gdouble) progress_total);
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|
|
}
|
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|
}
|
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|
|
else
|
|
|
|
{
|
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|
|
g_printerr (_("draw_jigsaw: bad style\n"));
|
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|
|
pika_quit ();
|
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|
|
}
|
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|
|
pika_progress_update (1.0);
|
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|
|
g_free (globals.gridx);
|
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|
|
g_free (globals.gridy);
|
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|
}
|
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|
static void
|
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|
|
draw_vertical_border (guchar *buffer,
|
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|
|
gint bufsize,
|
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|
|
gint width,
|
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|
|
gint height,
|
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|
|
gint bytes,
|
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|
|
gint x_offset,
|
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|
|
gint ytiles,
|
|
|
|
gint blend_lines,
|
|
|
|
gdouble blend_amount)
|
|
|
|
{
|
|
|
|
gint i, j;
|
|
|
|
gint tile_height = height / ytiles;
|
|
|
|
gint tile_height_eighth = tile_height / 8;
|
|
|
|
gint curve_start_offset = 3 * tile_height_eighth;
|
|
|
|
gint curve_end_offset = curve_start_offset + 2 * tile_height_eighth;
|
|
|
|
gint px[2], py[2];
|
|
|
|
gint ly[2], dy[2];
|
|
|
|
gint y_offset = 0;
|
|
|
|
gdouble delta;
|
|
|
|
gdouble sigma = blend_amount / blend_lines;
|
|
|
|
gint right;
|
|
|
|
|
|
|
|
for (i = 0; i < ytiles; i++)
|
|
|
|
{
|
|
|
|
right = g_random_int_range (0, 2);
|
|
|
|
|
|
|
|
/* first straight line from top downwards */
|
|
|
|
px[0] = px[1] = x_offset;
|
|
|
|
py[0] = y_offset; py[1] = y_offset + curve_start_offset - 1;
|
|
|
|
draw_vertical_line (buffer, bufsize, width, bytes, px, py);
|
|
|
|
delta = blend_amount;
|
|
|
|
dy[0] = ly[0] = py[0]; dy[1] = ly[1] = py[1];
|
|
|
|
if (!right)
|
|
|
|
{
|
|
|
|
ly[1] += blend_lines + 2;
|
|
|
|
}
|
|
|
|
for (j = 0; j < blend_lines; j++)
|
|
|
|
{
|
|
|
|
dy[0]++; dy[1]--; ly[0]++; ly[1]--;
|
|
|
|
px[0] = x_offset - j - 1;
|
|
|
|
darken_vertical_line (buffer, bufsize, width, bytes, px, dy, delta);
|
|
|
|
px[0] = x_offset + j + 1;
|
|
|
|
lighten_vertical_line (buffer, bufsize, width, bytes, px, ly, delta);
|
|
|
|
delta -= sigma;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* top half of curve */
|
|
|
|
if (right)
|
|
|
|
{
|
|
|
|
draw_right_bump (buffer, bufsize, width, bytes, x_offset,
|
|
|
|
y_offset + curve_start_offset,
|
|
|
|
globals.steps[RIGHT]);
|
|
|
|
delta = blend_amount;
|
|
|
|
for (j = 0; j < blend_lines; j++)
|
|
|
|
{
|
|
|
|
/* use to be -j -1 */
|
|
|
|
darken_right_bump (buffer, bufsize, width, bytes, x_offset,
|
|
|
|
y_offset + curve_start_offset,
|
|
|
|
globals.steps[RIGHT], delta, j);
|
|
|
|
/* use to be +j + 1 */
|
|
|
|
lighten_right_bump (buffer, bufsize, width, bytes, x_offset,
|
|
|
|
y_offset + curve_start_offset,
|
|
|
|
globals.steps[RIGHT], delta, j);
|
|
|
|
delta -= sigma;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
draw_left_bump (buffer, bufsize, width, bytes, x_offset,
|
|
|
|
y_offset + curve_start_offset,
|
|
|
|
globals.steps[LEFT]);
|
|
|
|
delta = blend_amount;
|
|
|
|
for (j = 0; j < blend_lines; j++)
|
|
|
|
{
|
|
|
|
/* use to be -j -1 */
|
|
|
|
darken_left_bump (buffer, bufsize, width, bytes, x_offset,
|
|
|
|
y_offset + curve_start_offset,
|
|
|
|
globals.steps[LEFT], delta, j);
|
|
|
|
/* use to be -j - 1 */
|
|
|
|
lighten_left_bump (buffer, bufsize, width, bytes, x_offset,
|
|
|
|
y_offset + curve_start_offset,
|
|
|
|
globals.steps[LEFT], delta, j);
|
|
|
|
delta -= sigma;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/* bottom straight line of a tile wall */
|
|
|
|
px[0] = px[1] = x_offset;
|
|
|
|
py[0] = y_offset + curve_end_offset;
|
|
|
|
py[1] = globals.gridy[i];
|
|
|
|
draw_vertical_line (buffer, bufsize, width, bytes, px, py);
|
|
|
|
delta = blend_amount;
|
|
|
|
dy[0] = ly[0] = py[0]; dy[1] = ly[1] = py[1];
|
|
|
|
if (right)
|
|
|
|
{
|
|
|
|
dy[0] -= blend_lines + 2;
|
|
|
|
}
|
|
|
|
for (j = 0; j < blend_lines; j++)
|
|
|
|
{
|
|
|
|
dy[0]++; dy[1]--; ly[0]++; ly[1]--;
|
|
|
|
px[0] = x_offset - j - 1;
|
|
|
|
darken_vertical_line (buffer, bufsize, width, bytes, px, dy, delta);
|
|
|
|
px[0] = x_offset + j + 1;
|
|
|
|
lighten_vertical_line (buffer, bufsize, width, bytes, px, ly, delta);
|
|
|
|
delta -= sigma;
|
|
|
|
}
|
|
|
|
|
|
|
|
y_offset = globals.gridy[i];
|
|
|
|
} /* for */
|
|
|
|
}
|
|
|
|
|
|
|
|
/* assumes RGB* */
|
|
|
|
static void
|
|
|
|
draw_horizontal_border (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint y_offset,
|
|
|
|
gint xtiles,
|
|
|
|
gint blend_lines,
|
|
|
|
gdouble blend_amount)
|
|
|
|
{
|
|
|
|
gint i, j;
|
|
|
|
gint tile_width = width / xtiles;
|
|
|
|
gint tile_width_eighth = tile_width / 8;
|
|
|
|
gint curve_start_offset = 3 * tile_width_eighth;
|
|
|
|
gint curve_end_offset = curve_start_offset + 2 * tile_width_eighth;
|
|
|
|
gint px[2], py[2];
|
|
|
|
gint dx[2], lx[2];
|
|
|
|
gint x_offset = 0;
|
|
|
|
gdouble delta;
|
|
|
|
gdouble sigma = blend_amount / blend_lines;
|
|
|
|
gint up;
|
|
|
|
|
|
|
|
for (i = 0; i < xtiles; i++)
|
|
|
|
{
|
|
|
|
up = g_random_int_range (0, 2);
|
|
|
|
|
|
|
|
/* first horizontal line across */
|
|
|
|
px[0] = x_offset; px[1] = x_offset + curve_start_offset - 1;
|
|
|
|
py[0] = py[1] = y_offset;
|
|
|
|
draw_horizontal_line (buffer, bufsize, width, bytes, px, py);
|
|
|
|
delta = blend_amount;
|
|
|
|
dx[0] = lx[0] = px[0]; dx[1] = lx[1] = px[1];
|
|
|
|
if (up)
|
|
|
|
{
|
|
|
|
lx[1] += blend_lines + 2;
|
|
|
|
}
|
|
|
|
for (j = 0; j < blend_lines; j++)
|
|
|
|
{
|
|
|
|
dx[0]++; dx[1]--; lx[0]++; lx[1]--;
|
|
|
|
py[0] = y_offset - j - 1;
|
|
|
|
darken_horizontal_line (buffer, bufsize, width, bytes, dx, py,
|
|
|
|
delta);
|
|
|
|
py[0] = y_offset + j + 1;
|
|
|
|
lighten_horizontal_line (buffer, bufsize, width, bytes, lx, py,
|
|
|
|
delta);
|
|
|
|
delta -= sigma;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (up)
|
|
|
|
{
|
|
|
|
draw_up_bump (buffer, bufsize, width, bytes, y_offset,
|
|
|
|
x_offset + curve_start_offset,
|
|
|
|
globals.steps[UP]);
|
|
|
|
delta = blend_amount;
|
|
|
|
for (j = 0; j < blend_lines; j++)
|
|
|
|
{
|
|
|
|
/* use to be -j -1 */
|
|
|
|
darken_up_bump (buffer, bufsize, width, bytes, y_offset,
|
|
|
|
x_offset + curve_start_offset,
|
|
|
|
globals.steps[UP], delta, j);
|
|
|
|
/* use to be +j + 1 */
|
|
|
|
lighten_up_bump (buffer, bufsize, width, bytes, y_offset,
|
|
|
|
x_offset + curve_start_offset,
|
|
|
|
globals.steps[UP], delta, j);
|
|
|
|
delta -= sigma;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
draw_down_bump (buffer, bufsize, width, bytes, y_offset,
|
|
|
|
x_offset + curve_start_offset,
|
|
|
|
globals.steps[DOWN]);
|
|
|
|
delta = blend_amount;
|
|
|
|
for (j = 0; j < blend_lines; j++)
|
|
|
|
{
|
|
|
|
/* use to be +j + 1 */
|
|
|
|
darken_down_bump (buffer, bufsize, width, bytes, y_offset,
|
|
|
|
x_offset + curve_start_offset,
|
|
|
|
globals.steps[DOWN], delta, j);
|
|
|
|
/* use to be -j -1 */
|
|
|
|
lighten_down_bump (buffer, bufsize, width, bytes, y_offset,
|
|
|
|
x_offset + curve_start_offset,
|
|
|
|
globals.steps[DOWN], delta, j);
|
|
|
|
delta -= sigma;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/* right horizontal line of tile */
|
|
|
|
px[0] = x_offset + curve_end_offset;
|
|
|
|
px[1] = globals.gridx[i];
|
|
|
|
py[0] = py[1] = y_offset;
|
|
|
|
draw_horizontal_line (buffer, bufsize, width, bytes, px, py);
|
|
|
|
delta = blend_amount;
|
|
|
|
dx[0] = lx[0] = px[0]; dx[1] = lx[1] = px[1];
|
|
|
|
if (!up)
|
|
|
|
{
|
|
|
|
dx[0] -= blend_lines + 2;
|
|
|
|
}
|
|
|
|
for (j = 0;j < blend_lines; j++)
|
|
|
|
{
|
|
|
|
dx[0]++; dx[1]--; lx[0]++; lx[1]--;
|
|
|
|
py[0] = y_offset - j - 1;
|
|
|
|
darken_horizontal_line (buffer, bufsize, width, bytes, dx, py,
|
|
|
|
delta);
|
|
|
|
py[0] = y_offset + j + 1;
|
|
|
|
lighten_horizontal_line (buffer, bufsize, width, bytes, lx, py,
|
|
|
|
delta);
|
|
|
|
delta -= sigma;
|
|
|
|
}
|
|
|
|
x_offset = globals.gridx[i];
|
|
|
|
} /* for */
|
|
|
|
}
|
|
|
|
|
|
|
|
/* assumes going top to bottom */
|
|
|
|
static void
|
|
|
|
draw_vertical_line (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint px[2],
|
|
|
|
gint py[2])
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint rowstride;
|
|
|
|
gint index;
|
|
|
|
gint length;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
index = px[0] * bytes + rowstride * py[0];
|
|
|
|
length = py[1] - py[0] + 1;
|
|
|
|
|
|
|
|
for (i = 0; i < length; i++)
|
|
|
|
{
|
|
|
|
DRAW_POINT (buffer, bufsize, index);
|
|
|
|
index += rowstride;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* assumes going left to right */
|
|
|
|
static void
|
|
|
|
draw_horizontal_line (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint px[2],
|
|
|
|
gint py[2])
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint rowstride;
|
|
|
|
gint index;
|
|
|
|
gint length;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
index = px[0] * bytes + rowstride * py[0];
|
|
|
|
length = px[1] - px[0] + 1;
|
|
|
|
|
|
|
|
for (i = 0; i < length; i++)
|
|
|
|
{
|
|
|
|
DRAW_POINT (buffer, bufsize, index);
|
|
|
|
index += bytes;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
draw_right_bump (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint x_offset,
|
|
|
|
gint curve_start_offset,
|
|
|
|
gint steps)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint x, y;
|
|
|
|
gint index;
|
|
|
|
gint rowstride;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
|
|
|
|
for (i = 0; i < steps; i++)
|
|
|
|
{
|
|
|
|
x = globals.cachex1[RIGHT][i] + x_offset;
|
|
|
|
y = globals.cachey1[RIGHT][i] + curve_start_offset;
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
DRAW_POINT (buffer, bufsize, index);
|
|
|
|
|
|
|
|
x = globals.cachex2[RIGHT][i] + x_offset;
|
|
|
|
y = globals.cachey2[RIGHT][i] + curve_start_offset;
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
DRAW_POINT (buffer, bufsize, index);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
draw_left_bump (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint x_offset,
|
|
|
|
gint curve_start_offset,
|
|
|
|
gint steps)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint x, y;
|
|
|
|
gint index;
|
|
|
|
gint rowstride;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
|
|
|
|
for (i = 0; i < steps; i++)
|
|
|
|
{
|
|
|
|
x = globals.cachex1[LEFT][i] + x_offset;
|
|
|
|
y = globals.cachey1[LEFT][i] + curve_start_offset;
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
DRAW_POINT (buffer, bufsize, index);
|
|
|
|
|
|
|
|
x = globals.cachex2[LEFT][i] + x_offset;
|
|
|
|
y = globals.cachey2[LEFT][i] + curve_start_offset;
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
DRAW_POINT (buffer, bufsize, index);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
draw_up_bump (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint y_offset,
|
|
|
|
gint curve_start_offset,
|
|
|
|
gint steps)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint x, y;
|
|
|
|
gint index;
|
|
|
|
gint rowstride;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
|
|
|
|
for (i = 0; i < steps; i++)
|
|
|
|
{
|
|
|
|
x = globals.cachex1[UP][i] + curve_start_offset;
|
|
|
|
y = globals.cachey1[UP][i] + y_offset;
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
DRAW_POINT (buffer, bufsize, index);
|
|
|
|
|
|
|
|
x = globals.cachex2[UP][i] + curve_start_offset;
|
|
|
|
y = globals.cachey2[UP][i] + y_offset;
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
DRAW_POINT (buffer, bufsize, index);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
draw_down_bump (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint y_offset,
|
|
|
|
gint curve_start_offset,
|
|
|
|
gint steps)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint x, y;
|
|
|
|
gint index;
|
|
|
|
gint rowstride;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
|
|
|
|
for (i = 0; i < steps; i++)
|
|
|
|
{
|
|
|
|
x = globals.cachex1[DOWN][i] + curve_start_offset;
|
|
|
|
y = globals.cachey1[DOWN][i] + y_offset;
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
DRAW_POINT (buffer, bufsize, index);
|
|
|
|
|
|
|
|
x = globals.cachex2[DOWN][i] + curve_start_offset;
|
|
|
|
y = globals.cachey2[DOWN][i] + y_offset;
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
DRAW_POINT (buffer, bufsize, index);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
malloc_cache (gint blend_lines)
|
|
|
|
{
|
|
|
|
gint i, j;
|
|
|
|
|
|
|
|
for (i = 0; i < 4; i++)
|
|
|
|
{
|
|
|
|
gint steps = globals.steps[i];
|
|
|
|
|
|
|
|
globals.cachex1[i] = g_new (gint, steps);
|
|
|
|
globals.cachex2[i] = g_new (gint, steps);
|
|
|
|
globals.cachey1[i] = g_new (gint, steps);
|
|
|
|
globals.cachey2[i] = g_new (gint, steps);
|
|
|
|
globals.blend_outer_cachex1[i] = g_new (gint *, blend_lines);
|
|
|
|
globals.blend_outer_cachex2[i] = g_new (gint *, blend_lines);
|
|
|
|
globals.blend_outer_cachey1[i] = g_new (gint *, blend_lines);
|
|
|
|
globals.blend_outer_cachey2[i] = g_new (gint *, blend_lines);
|
|
|
|
globals.blend_inner_cachex1[i] = g_new (gint *, blend_lines);
|
|
|
|
globals.blend_inner_cachex2[i] = g_new (gint *, blend_lines);
|
|
|
|
globals.blend_inner_cachey1[i] = g_new (gint *, blend_lines);
|
|
|
|
globals.blend_inner_cachey2[i] = g_new (gint *, blend_lines);
|
|
|
|
for (j = 0; j < blend_lines; j++)
|
|
|
|
{
|
|
|
|
globals.blend_outer_cachex1[i][j] = g_new (gint, steps);
|
|
|
|
globals.blend_outer_cachex2[i][j] = g_new (gint, steps);
|
|
|
|
globals.blend_outer_cachey1[i][j] = g_new (gint, steps);
|
|
|
|
globals.blend_outer_cachey2[i][j] = g_new (gint, steps);
|
|
|
|
globals.blend_inner_cachex1[i][j] = g_new (gint, steps);
|
|
|
|
globals.blend_inner_cachex2[i][j] = g_new (gint, steps);
|
|
|
|
globals.blend_inner_cachey1[i][j] = g_new (gint, steps);
|
|
|
|
globals.blend_inner_cachey2[i][j] = g_new (gint, steps);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
free_cache (gint blend_lines)
|
|
|
|
{
|
|
|
|
gint i, j;
|
|
|
|
|
|
|
|
for (i = 0; i < 4; i ++)
|
|
|
|
{
|
|
|
|
g_free (globals.cachex1[i]);
|
|
|
|
g_free (globals.cachex2[i]);
|
|
|
|
g_free (globals.cachey1[i]);
|
|
|
|
g_free (globals.cachey2[i]);
|
|
|
|
for (j = 0; j < blend_lines; j++)
|
|
|
|
{
|
|
|
|
g_free (globals.blend_outer_cachex1[i][j]);
|
|
|
|
g_free (globals.blend_outer_cachex2[i][j]);
|
|
|
|
g_free (globals.blend_outer_cachey1[i][j]);
|
|
|
|
g_free (globals.blend_outer_cachey2[i][j]);
|
|
|
|
g_free (globals.blend_inner_cachex1[i][j]);
|
|
|
|
g_free (globals.blend_inner_cachex2[i][j]);
|
|
|
|
g_free (globals.blend_inner_cachey1[i][j]);
|
|
|
|
g_free (globals.blend_inner_cachey2[i][j]);
|
|
|
|
}
|
|
|
|
g_free (globals.blend_outer_cachex1[i]);
|
|
|
|
g_free (globals.blend_outer_cachex2[i]);
|
|
|
|
g_free (globals.blend_outer_cachey1[i]);
|
|
|
|
g_free (globals.blend_outer_cachey2[i]);
|
|
|
|
g_free (globals.blend_inner_cachex1[i]);
|
|
|
|
g_free (globals.blend_inner_cachex2[i]);
|
|
|
|
g_free (globals.blend_inner_cachey1[i]);
|
|
|
|
g_free (globals.blend_inner_cachey2[i]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
init_right_bump (gint x,
|
|
|
|
gint y,
|
|
|
|
gint blend_lines,
|
|
|
|
gint width,
|
|
|
|
gint height)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint xtiles = x;
|
|
|
|
gint ytiles = y;
|
|
|
|
gint steps = globals.steps[RIGHT];
|
|
|
|
gint px[4], py[4];
|
|
|
|
gint x_offset = 0;
|
|
|
|
gint tile_width = width / xtiles;
|
|
|
|
gint tile_height = height/ ytiles;
|
|
|
|
gint tile_height_eighth = tile_height / 8;
|
|
|
|
gint curve_start_offset = 0;
|
|
|
|
gint curve_end_offset = curve_start_offset + 2 * tile_height_eighth;
|
|
|
|
|
|
|
|
px[0] = x_offset;
|
|
|
|
px[1] = x_offset + XFACTOR2 * tile_width;
|
|
|
|
px[2] = x_offset + XFACTOR3 * tile_width;
|
|
|
|
px[3] = x_offset + XFACTOR4 * tile_width;
|
|
|
|
py[0] = curve_start_offset;
|
|
|
|
py[1] = curve_start_offset + YFACTOR2 * tile_height;
|
|
|
|
py[2] = curve_start_offset - YFACTOR3 * tile_height;
|
|
|
|
py[3] = curve_start_offset + YFACTOR4 * tile_height;
|
|
|
|
generate_bezier(px, py, steps, globals.cachex1[RIGHT],
|
|
|
|
globals.cachey1[RIGHT]);
|
|
|
|
/* outside right bump */
|
|
|
|
for (i = 0; i < blend_lines; i++)
|
|
|
|
{
|
|
|
|
py[0]--; py[1]--; py[2]--; px[3]++;
|
|
|
|
generate_bezier(px, py, steps,
|
|
|
|
globals.blend_outer_cachex1[RIGHT][i],
|
|
|
|
globals.blend_outer_cachey1[RIGHT][i]);
|
|
|
|
}
|
|
|
|
/* inside right bump */
|
|
|
|
py[0] += blend_lines; py[1] += blend_lines; py[2] += blend_lines;
|
|
|
|
px[3] -= blend_lines;
|
|
|
|
for (i = 0; i < blend_lines; i++)
|
|
|
|
{
|
|
|
|
py[0]++; py[1]++; py[2]++; px[3]--;
|
|
|
|
generate_bezier(px, py, steps,
|
|
|
|
globals.blend_inner_cachex1[RIGHT][i],
|
|
|
|
globals.blend_inner_cachey1[RIGHT][i]);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* bottom half of bump */
|
|
|
|
px[0] = x_offset + XFACTOR5 * tile_width;
|
|
|
|
px[1] = x_offset + XFACTOR6 * tile_width;
|
|
|
|
px[2] = x_offset + XFACTOR7 * tile_width;
|
|
|
|
px[3] = x_offset;
|
|
|
|
py[0] = curve_start_offset + YFACTOR5 * tile_height;
|
|
|
|
py[1] = curve_start_offset + YFACTOR6 * tile_height;
|
|
|
|
py[2] = curve_start_offset + YFACTOR7 * tile_height;
|
|
|
|
py[3] = curve_end_offset;
|
|
|
|
generate_bezier(px, py, steps, globals.cachex2[RIGHT],
|
|
|
|
globals.cachey2[RIGHT]);
|
|
|
|
/* outer right bump */
|
|
|
|
for (i = 0; i < blend_lines; i++)
|
|
|
|
{
|
|
|
|
py[1]++; py[2]++; py[3]++; px[0]++;
|
|
|
|
generate_bezier(px, py, steps,
|
|
|
|
globals.blend_outer_cachex2[RIGHT][i],
|
|
|
|
globals.blend_outer_cachey2[RIGHT][i]);
|
|
|
|
}
|
|
|
|
/* inner right bump */
|
|
|
|
py[1] -= blend_lines; py[2] -= blend_lines; py[3] -= blend_lines;
|
|
|
|
px[0] -= blend_lines;
|
|
|
|
for (i = 0; i < blend_lines; i++)
|
|
|
|
{
|
|
|
|
py[1]--; py[2]--; py[3]--; px[0]--;
|
|
|
|
generate_bezier(px, py, steps,
|
|
|
|
globals.blend_inner_cachex2[RIGHT][i],
|
|
|
|
globals.blend_inner_cachey2[RIGHT][i]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
init_left_bump (gint x,
|
|
|
|
gint y,
|
|
|
|
gint blend_lines,
|
|
|
|
gint width,
|
|
|
|
gint height)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint xtiles = x;
|
|
|
|
gint ytiles = y;
|
|
|
|
gint steps = globals.steps[LEFT];
|
|
|
|
gint px[4], py[4];
|
|
|
|
gint x_offset = 0;
|
|
|
|
gint tile_width = width / xtiles;
|
|
|
|
gint tile_height = height / ytiles;
|
|
|
|
gint tile_height_eighth = tile_height / 8;
|
|
|
|
gint curve_start_offset = 0;
|
|
|
|
gint curve_end_offset = curve_start_offset + 2 * tile_height_eighth;
|
|
|
|
|
|
|
|
px[0] = x_offset;
|
|
|
|
px[1] = x_offset - XFACTOR2 * tile_width;
|
|
|
|
px[2] = x_offset - XFACTOR3 * tile_width;
|
|
|
|
px[3] = x_offset - XFACTOR4 * tile_width;
|
|
|
|
py[0] = curve_start_offset;
|
|
|
|
py[1] = curve_start_offset + YFACTOR2 * tile_height;
|
|
|
|
py[2] = curve_start_offset - YFACTOR3 * tile_height;
|
|
|
|
py[3] = curve_start_offset + YFACTOR4 * tile_height;
|
|
|
|
generate_bezier(px, py, steps, globals.cachex1[LEFT],
|
|
|
|
globals.cachey1[LEFT]);
|
|
|
|
/* outer left bump */
|
|
|
|
for (i = 0; i < blend_lines; i++)
|
|
|
|
{
|
|
|
|
py[0]--; py[1]--; py[2]--; px[3]--;
|
|
|
|
generate_bezier(px, py, steps,
|
|
|
|
globals.blend_outer_cachex1[LEFT][i],
|
|
|
|
globals.blend_outer_cachey1[LEFT][i]);
|
|
|
|
}
|
|
|
|
/* inner left bump */
|
|
|
|
py[0] += blend_lines; py[1] += blend_lines; py[2] += blend_lines;
|
|
|
|
px[3] += blend_lines;
|
|
|
|
for (i = 0; i < blend_lines; i++)
|
|
|
|
{
|
|
|
|
py[0]++; py[1]++; py[2]++; px[3]++;
|
|
|
|
generate_bezier(px, py, steps,
|
|
|
|
globals.blend_inner_cachex1[LEFT][i],
|
|
|
|
globals.blend_inner_cachey1[LEFT][i]);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* bottom half of bump */
|
|
|
|
px[0] = x_offset - XFACTOR5 * tile_width;
|
|
|
|
px[1] = x_offset - XFACTOR6 * tile_width;
|
|
|
|
px[2] = x_offset - XFACTOR7 * tile_width;
|
|
|
|
px[3] = x_offset;
|
|
|
|
py[0] = curve_start_offset + YFACTOR5 * tile_height;
|
|
|
|
py[1] = curve_start_offset + YFACTOR6 * tile_height;
|
|
|
|
py[2] = curve_start_offset + YFACTOR7 * tile_height;
|
|
|
|
py[3] = curve_end_offset;
|
|
|
|
generate_bezier(px, py, steps, globals.cachex2[LEFT],
|
|
|
|
globals.cachey2[LEFT]);
|
|
|
|
/* outer left bump */
|
|
|
|
for (i = 0; i < blend_lines; i++)
|
|
|
|
{
|
|
|
|
py[1]++; py[2]++; py[3]++; px[0]--;
|
|
|
|
generate_bezier(px, py, steps,
|
|
|
|
globals.blend_outer_cachex2[LEFT][i],
|
|
|
|
globals.blend_outer_cachey2[LEFT][i]);
|
|
|
|
}
|
|
|
|
/* inner left bump */
|
|
|
|
py[1] -= blend_lines; py[2] -= blend_lines; py[3] -= blend_lines;
|
|
|
|
px[0] += blend_lines;
|
|
|
|
for (i = 0; i < blend_lines; i++)
|
|
|
|
{
|
|
|
|
py[1]--; py[2]--; py[3]--; px[0]++;
|
|
|
|
generate_bezier(px, py, steps,
|
|
|
|
globals.blend_inner_cachex2[LEFT][i],
|
|
|
|
globals.blend_inner_cachey2[LEFT][i]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
init_up_bump (gint x,
|
|
|
|
gint y,
|
|
|
|
gint blend_lines,
|
|
|
|
gint width,
|
|
|
|
gint height)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint xtiles = x;
|
|
|
|
gint ytiles = y;
|
|
|
|
gint steps = globals.steps[UP];
|
|
|
|
gint px[4], py[4];
|
|
|
|
gint y_offset = 0;
|
|
|
|
gint tile_width = width / xtiles;
|
|
|
|
gint tile_height = height/ ytiles;
|
|
|
|
gint tile_width_eighth = tile_width / 8;
|
|
|
|
gint curve_start_offset = 0;
|
|
|
|
gint curve_end_offset = curve_start_offset + 2 * tile_width_eighth;
|
|
|
|
|
|
|
|
px[0] = curve_start_offset;
|
|
|
|
px[1] = curve_start_offset + YFACTOR2 * tile_width;
|
|
|
|
px[2] = curve_start_offset - YFACTOR3 * tile_width;
|
|
|
|
px[3] = curve_start_offset + YFACTOR4 * tile_width;
|
|
|
|
py[0] = y_offset;
|
|
|
|
py[1] = y_offset - XFACTOR2 * tile_height;
|
|
|
|
py[2] = y_offset - XFACTOR3 * tile_height;
|
|
|
|
py[3] = y_offset - XFACTOR4 * tile_height;
|
|
|
|
generate_bezier(px, py, steps, globals.cachex1[UP],
|
|
|
|
globals.cachey1[UP]);
|
|
|
|
/* outer up bump */
|
|
|
|
for (i = 0; i < blend_lines; i++)
|
|
|
|
{
|
|
|
|
px[0]--; px[1]--; px[2]--; py[3]--;
|
|
|
|
generate_bezier(px, py, steps,
|
|
|
|
globals.blend_outer_cachex1[UP][i],
|
|
|
|
globals.blend_outer_cachey1[UP][i]);
|
|
|
|
}
|
|
|
|
/* inner up bump */
|
|
|
|
px[0] += blend_lines; px[1] += blend_lines; px[2] += blend_lines;
|
|
|
|
py[3] += blend_lines;
|
|
|
|
for (i = 0; i < blend_lines; i++)
|
|
|
|
{
|
|
|
|
px[0]++; px[1]++; px[2]++; py[3]++;
|
|
|
|
generate_bezier(px, py, steps,
|
|
|
|
globals.blend_inner_cachex1[UP][i],
|
|
|
|
globals.blend_inner_cachey1[UP][i]);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* bottom half of bump */
|
|
|
|
px[0] = curve_start_offset + YFACTOR5 * tile_width;
|
|
|
|
px[1] = curve_start_offset + YFACTOR6 * tile_width;
|
|
|
|
px[2] = curve_start_offset + YFACTOR7 * tile_width;
|
|
|
|
px[3] = curve_end_offset;
|
|
|
|
py[0] = y_offset - XFACTOR5 * tile_height;
|
|
|
|
py[1] = y_offset - XFACTOR6 * tile_height;
|
|
|
|
py[2] = y_offset - XFACTOR7 * tile_height;
|
|
|
|
py[3] = y_offset;
|
|
|
|
generate_bezier(px, py, steps, globals.cachex2[UP],
|
|
|
|
globals.cachey2[UP]);
|
|
|
|
/* outer up bump */
|
|
|
|
for (i = 0; i < blend_lines; i++)
|
|
|
|
{
|
|
|
|
px[1]++; px[2]++; px[3]++; py[0]--;
|
|
|
|
generate_bezier(px, py, steps,
|
|
|
|
globals.blend_outer_cachex2[UP][i],
|
|
|
|
globals.blend_outer_cachey2[UP][i]);
|
|
|
|
}
|
|
|
|
/* inner up bump */
|
|
|
|
px[1] -= blend_lines; px[2] -= blend_lines; px[3] -= blend_lines;
|
|
|
|
py[0] += blend_lines;
|
|
|
|
for (i = 0; i < blend_lines; i++)
|
|
|
|
{
|
|
|
|
px[1]--; px[2]--; px[3]--; py[0]++;
|
|
|
|
generate_bezier(px, py, steps,
|
|
|
|
globals.blend_inner_cachex2[UP][i],
|
|
|
|
globals.blend_inner_cachey2[UP][i]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
init_down_bump (gint x,
|
|
|
|
gint y,
|
|
|
|
gint blend_lines,
|
|
|
|
gint width,
|
|
|
|
gint height)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint xtiles = x;
|
|
|
|
gint ytiles = y;
|
|
|
|
gint steps = globals.steps[DOWN];
|
|
|
|
gint px[4], py[4];
|
|
|
|
gint y_offset = 0;
|
|
|
|
gint tile_width = width / xtiles;
|
|
|
|
gint tile_height = height/ ytiles;
|
|
|
|
gint tile_width_eighth = tile_width / 8;
|
|
|
|
gint curve_start_offset = 0;
|
|
|
|
gint curve_end_offset = curve_start_offset + 2 * tile_width_eighth;
|
|
|
|
|
|
|
|
px[0] = curve_start_offset;
|
|
|
|
px[1] = curve_start_offset + YFACTOR2 * tile_width;
|
|
|
|
px[2] = curve_start_offset - YFACTOR3 * tile_width;
|
|
|
|
px[3] = curve_start_offset + YFACTOR4 * tile_width;
|
|
|
|
py[0] = y_offset;
|
|
|
|
py[1] = y_offset + XFACTOR2 * tile_height;
|
|
|
|
py[2] = y_offset + XFACTOR3 * tile_height;
|
|
|
|
py[3] = y_offset + XFACTOR4 * tile_height;
|
|
|
|
generate_bezier(px, py, steps, globals.cachex1[DOWN],
|
|
|
|
globals.cachey1[DOWN]);
|
|
|
|
/* outer down bump */
|
|
|
|
for (i = 0; i < blend_lines; i++)
|
|
|
|
{
|
|
|
|
px[0]--; px[1]--; px[2]--; py[3]++;
|
|
|
|
generate_bezier(px, py, steps,
|
|
|
|
globals.blend_outer_cachex1[DOWN][i],
|
|
|
|
globals.blend_outer_cachey1[DOWN][i]);
|
|
|
|
}
|
|
|
|
/* inner down bump */
|
|
|
|
px[0] += blend_lines; px[1] += blend_lines; px[2] += blend_lines;
|
|
|
|
py[3] -= blend_lines;
|
|
|
|
for (i = 0; i < blend_lines; i++)
|
|
|
|
{
|
|
|
|
px[0]++; px[1]++; px[2]++; py[3]--;
|
|
|
|
generate_bezier(px, py, steps,
|
|
|
|
globals.blend_inner_cachex1[DOWN][i],
|
|
|
|
globals.blend_inner_cachey1[DOWN][i]);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* bottom half of bump */
|
|
|
|
px[0] = curve_start_offset + YFACTOR5 * tile_width;
|
|
|
|
px[1] = curve_start_offset + YFACTOR6 * tile_width;
|
|
|
|
px[2] = curve_start_offset + YFACTOR7 * tile_width;
|
|
|
|
px[3] = curve_end_offset;
|
|
|
|
py[0] = y_offset + XFACTOR5 * tile_height;
|
|
|
|
py[1] = y_offset + XFACTOR6 * tile_height;
|
|
|
|
py[2] = y_offset + XFACTOR7 * tile_height;
|
|
|
|
py[3] = y_offset;
|
|
|
|
generate_bezier(px, py, steps, globals.cachex2[DOWN],
|
|
|
|
globals.cachey2[DOWN]);
|
|
|
|
/* outer down bump */
|
|
|
|
for (i = 0; i < blend_lines; i++)
|
|
|
|
{
|
|
|
|
px[1]++; px[2]++; px[3]++; py[0]++;
|
|
|
|
generate_bezier(px, py, steps,
|
|
|
|
globals.blend_outer_cachex2[DOWN][i],
|
|
|
|
globals.blend_outer_cachey2[DOWN][i]);
|
|
|
|
}
|
|
|
|
/* inner down bump */
|
|
|
|
px[1] -= blend_lines; px[2] -= blend_lines; px[3] -= blend_lines;
|
|
|
|
py[0] -= blend_lines;
|
|
|
|
for (i = 0; i < blend_lines; i++)
|
|
|
|
{
|
|
|
|
px[1]--; px[2]--; px[3]--; py[0]--;
|
|
|
|
generate_bezier(px, py, steps,
|
|
|
|
globals.blend_inner_cachex2[DOWN][i],
|
|
|
|
globals.blend_inner_cachey2[DOWN][i]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
generate_grid (gint width,
|
|
|
|
gint height,
|
|
|
|
gint xtiles,
|
|
|
|
gint ytiles,
|
|
|
|
gint *x,
|
|
|
|
gint *y)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint xlines = xtiles - 1;
|
|
|
|
gint ylines = ytiles - 1;
|
|
|
|
gint tile_width = width / xtiles;
|
|
|
|
gint tile_height = height / ytiles;
|
|
|
|
gint tile_width_leftover = width % xtiles;
|
|
|
|
gint tile_height_leftover = height % ytiles;
|
|
|
|
gint x_offset = tile_width;
|
|
|
|
gint y_offset = tile_height;
|
|
|
|
gint carry;
|
|
|
|
|
|
|
|
for (i = 0; i < xlines; i++)
|
|
|
|
{
|
|
|
|
x[i] = x_offset;
|
|
|
|
x_offset += tile_width;
|
|
|
|
}
|
|
|
|
carry = 0;
|
|
|
|
while (tile_width_leftover)
|
|
|
|
{
|
|
|
|
for (i = carry; i < xlines; i++)
|
|
|
|
{
|
|
|
|
x[i] += 1;
|
|
|
|
}
|
|
|
|
tile_width_leftover--;
|
|
|
|
carry++;
|
|
|
|
}
|
|
|
|
x[xlines] = width - 1; /* padding for draw_horizontal_border */
|
|
|
|
|
|
|
|
for (i = 0; i < ytiles; i++)
|
|
|
|
{
|
|
|
|
y[i] = y_offset;
|
|
|
|
y_offset += tile_height;
|
|
|
|
}
|
|
|
|
carry = 0;
|
|
|
|
while (tile_height_leftover)
|
|
|
|
{
|
|
|
|
for (i = carry; i < ylines; i++)
|
|
|
|
{
|
|
|
|
y[i] += 1;
|
|
|
|
}
|
|
|
|
tile_height_leftover--;
|
|
|
|
carry++;
|
|
|
|
}
|
|
|
|
y[ylines] = height - 1; /* padding for draw_vertical_border */
|
|
|
|
}
|
|
|
|
|
|
|
|
/* assumes RGB* */
|
|
|
|
/* assumes py[1] > py[0] and px[0] = px[1] */
|
|
|
|
static void
|
|
|
|
darken_vertical_line (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint px[2],
|
|
|
|
gint py[2],
|
|
|
|
gdouble delta)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint rowstride;
|
|
|
|
gint index;
|
|
|
|
gint length;
|
|
|
|
gint temp;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
index = px[0] * bytes + py[0] * rowstride;
|
|
|
|
length = py[1] - py[0] + 1;
|
|
|
|
|
|
|
|
for (i = 0; i < length; i++)
|
|
|
|
{
|
|
|
|
DARKEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
index += rowstride;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* assumes RGB* */
|
|
|
|
/* assumes py[1] > py[0] and px[0] = px[1] */
|
|
|
|
static void
|
|
|
|
lighten_vertical_line (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint px[2],
|
|
|
|
gint py[2],
|
|
|
|
gdouble delta)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint rowstride;
|
|
|
|
gint index;
|
|
|
|
gint length;
|
|
|
|
gint temp;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
index = px[0] * bytes + py[0] * rowstride;
|
|
|
|
length = py[1] - py[0] + 1;
|
|
|
|
|
|
|
|
for (i = 0; i < length; i++)
|
|
|
|
{
|
|
|
|
LIGHTEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
index += rowstride;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* assumes RGB* */
|
|
|
|
/* assumes px[1] > px[0] and py[0] = py[1] */
|
|
|
|
static void
|
|
|
|
darken_horizontal_line (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint px[2],
|
|
|
|
gint py[2],
|
|
|
|
gdouble delta)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint rowstride;
|
|
|
|
gint index;
|
|
|
|
gint length;
|
|
|
|
gint temp;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
index = px[0] * bytes + py[0] * rowstride;
|
|
|
|
length = px[1] - px[0] + 1;
|
|
|
|
|
|
|
|
for (i = 0; i < length; i++)
|
|
|
|
{
|
|
|
|
DARKEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
index += bytes;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* assumes RGB* */
|
|
|
|
/* assumes px[1] > px[0] and py[0] = py[1] */
|
|
|
|
static void
|
|
|
|
lighten_horizontal_line (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint px[2],
|
|
|
|
gint py[2],
|
|
|
|
gdouble delta)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint rowstride;
|
|
|
|
gint index;
|
|
|
|
gint length;
|
|
|
|
gint temp;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
index = px[0] * bytes + py[0] * rowstride;
|
|
|
|
length = px[1] - px[0] + 1;
|
|
|
|
|
|
|
|
for (i = 0; i < length; i++)
|
|
|
|
{
|
|
|
|
LIGHTEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
index += bytes;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
darken_right_bump (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint x_offset,
|
|
|
|
gint curve_start_offset,
|
|
|
|
gint steps,
|
|
|
|
gdouble delta,
|
|
|
|
gint counter)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint x, y;
|
|
|
|
gint index;
|
|
|
|
gint last_index1 = -1;
|
|
|
|
gint last_index2 = -1;
|
|
|
|
gint rowstride;
|
|
|
|
gint temp;
|
|
|
|
gint j = counter;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
|
|
|
|
for (i = 0; i < steps; i++)
|
|
|
|
{
|
|
|
|
x = x_offset
|
|
|
|
+ globals.blend_inner_cachex1[RIGHT][j][i];
|
|
|
|
y = curve_start_offset
|
|
|
|
+ globals.blend_inner_cachey1[RIGHT][j][i];
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
if (index != last_index1)
|
|
|
|
{
|
|
|
|
if (i < steps / 1.3)
|
|
|
|
{
|
|
|
|
LIGHTEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
DARKEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
}
|
|
|
|
last_index1 = index;
|
|
|
|
}
|
|
|
|
|
|
|
|
x = x_offset
|
|
|
|
+ globals.blend_inner_cachex2[RIGHT][j][i];
|
|
|
|
y = curve_start_offset
|
|
|
|
+ globals.blend_inner_cachey2[RIGHT][j][i];
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
if (index != last_index2)
|
|
|
|
{
|
|
|
|
DARKEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
last_index2 = index;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
lighten_right_bump (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint x_offset,
|
|
|
|
gint curve_start_offset,
|
|
|
|
gint steps,
|
|
|
|
gdouble delta,
|
|
|
|
gint counter)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint x, y;
|
|
|
|
gint index;
|
|
|
|
gint last_index1 = -1;
|
|
|
|
gint last_index2 = -1;
|
|
|
|
gint rowstride;
|
|
|
|
gint temp;
|
|
|
|
gint j = counter;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
|
|
|
|
for (i = 0; i < steps; i++)
|
|
|
|
{
|
|
|
|
x = x_offset
|
|
|
|
+ globals.blend_outer_cachex1[RIGHT][j][i];
|
|
|
|
y = curve_start_offset
|
|
|
|
+ globals.blend_outer_cachey1[RIGHT][j][i];
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
if (index != last_index1)
|
|
|
|
{
|
|
|
|
if (i < steps / 1.3)
|
|
|
|
{
|
|
|
|
DARKEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
LIGHTEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
}
|
|
|
|
last_index1 = index;
|
|
|
|
}
|
|
|
|
|
|
|
|
x = x_offset
|
|
|
|
+ globals.blend_outer_cachex2[RIGHT][j][i];
|
|
|
|
y = curve_start_offset
|
|
|
|
+ globals.blend_outer_cachey2[RIGHT][j][i];
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
if (index != last_index2)
|
|
|
|
{
|
|
|
|
LIGHTEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
last_index2 = index;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
darken_left_bump (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint x_offset,
|
|
|
|
gint curve_start_offset,
|
|
|
|
gint steps,
|
|
|
|
gdouble delta,
|
|
|
|
gint counter)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint x, y;
|
|
|
|
gint index;
|
|
|
|
gint last_index1 = -1;
|
|
|
|
gint last_index2 = -1;
|
|
|
|
gint rowstride;
|
|
|
|
gint temp;
|
|
|
|
gint j = counter;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
|
|
|
|
for (i = 0; i < steps; i++)
|
|
|
|
{
|
|
|
|
x = x_offset
|
|
|
|
+ globals.blend_outer_cachex1[LEFT][j][i];
|
|
|
|
y = curve_start_offset
|
|
|
|
+ globals.blend_outer_cachey1[LEFT][j][i];
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
if (index != last_index1)
|
|
|
|
{
|
|
|
|
DARKEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
last_index1 = index;
|
|
|
|
}
|
|
|
|
|
|
|
|
x = x_offset
|
|
|
|
+ globals.blend_outer_cachex2[LEFT][j][i];
|
|
|
|
y = curve_start_offset
|
|
|
|
+ globals.blend_outer_cachey2[LEFT][j][i];
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
if (index != last_index2)
|
|
|
|
{
|
|
|
|
if (i < steps / 4)
|
|
|
|
{
|
|
|
|
DARKEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
LIGHTEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
}
|
|
|
|
last_index2 = index;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
lighten_left_bump (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint x_offset,
|
|
|
|
gint curve_start_offset,
|
|
|
|
gint steps,
|
|
|
|
gdouble delta,
|
|
|
|
gint counter)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint x, y;
|
|
|
|
gint index;
|
|
|
|
gint last_index1 = -1;
|
|
|
|
gint last_index2 = -1;
|
|
|
|
gint rowstride;
|
|
|
|
gint temp;
|
|
|
|
gint j = counter;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
|
|
|
|
for (i = 0; i < steps; i++)
|
|
|
|
{
|
|
|
|
x = x_offset
|
|
|
|
+ globals.blend_inner_cachex1[LEFT][j][i];
|
|
|
|
y = curve_start_offset
|
|
|
|
+ globals.blend_inner_cachey1[LEFT][j][i];
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
if (index != last_index1)
|
|
|
|
{
|
|
|
|
LIGHTEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
last_index1 = index;
|
|
|
|
}
|
|
|
|
|
|
|
|
x = x_offset
|
|
|
|
+ globals.blend_inner_cachex2[LEFT][j][i];
|
|
|
|
y = curve_start_offset
|
|
|
|
+ globals.blend_inner_cachey2[LEFT][j][i];
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
if (index != last_index2)
|
|
|
|
{
|
|
|
|
if (i < steps / 4)
|
|
|
|
{
|
|
|
|
LIGHTEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
DARKEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
}
|
|
|
|
last_index2 = index;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
darken_up_bump (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint y_offset,
|
|
|
|
gint curve_start_offset,
|
|
|
|
gint steps,
|
|
|
|
gdouble delta,
|
|
|
|
gint counter)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint x, y;
|
|
|
|
gint index;
|
|
|
|
gint last_index1 = -1;
|
|
|
|
gint last_index2 = -1;
|
|
|
|
gint rowstride;
|
|
|
|
gint temp;
|
|
|
|
gint j = counter;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
|
|
|
|
for (i = 0; i < steps; i++)
|
|
|
|
{
|
|
|
|
x = curve_start_offset
|
|
|
|
+ globals.blend_outer_cachex1[UP][j][i];
|
|
|
|
y = y_offset
|
|
|
|
+ globals.blend_outer_cachey1[UP][j][i];
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
if (index != last_index1)
|
|
|
|
{
|
|
|
|
DARKEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
last_index1 = index;
|
|
|
|
}
|
|
|
|
|
|
|
|
x = curve_start_offset
|
|
|
|
+ globals.blend_outer_cachex2[UP][j][i];
|
|
|
|
y = y_offset
|
|
|
|
+ globals.blend_outer_cachey2[UP][j][i];
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
if (index != last_index2)
|
|
|
|
{
|
|
|
|
if (i < steps / 4)
|
|
|
|
{
|
|
|
|
DARKEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
LIGHTEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
}
|
|
|
|
last_index2 = index;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
lighten_up_bump (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint y_offset,
|
|
|
|
gint curve_start_offset,
|
|
|
|
gint steps,
|
|
|
|
gdouble delta,
|
|
|
|
gint counter)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint x, y;
|
|
|
|
gint index;
|
|
|
|
gint last_index1 = -1;
|
|
|
|
gint last_index2 = -1;
|
|
|
|
gint rowstride;
|
|
|
|
gint temp;
|
|
|
|
gint j = counter;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
|
|
|
|
for (i = 0; i < steps; i++)
|
|
|
|
{
|
|
|
|
x = curve_start_offset
|
|
|
|
+ globals.blend_inner_cachex1[UP][j][i];
|
|
|
|
y = y_offset
|
|
|
|
+ globals.blend_inner_cachey1[UP][j][i];
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
if (index != last_index1)
|
|
|
|
{
|
|
|
|
LIGHTEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
last_index1 = index;
|
|
|
|
}
|
|
|
|
|
|
|
|
x = curve_start_offset
|
|
|
|
+ globals.blend_inner_cachex2[UP][j][i];
|
|
|
|
y = y_offset
|
|
|
|
+ globals.blend_inner_cachey2[UP][j][i];
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
if (index != last_index2)
|
|
|
|
{
|
|
|
|
if (i < steps / 4)
|
|
|
|
{
|
|
|
|
LIGHTEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
DARKEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
}
|
|
|
|
last_index2 = index;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
darken_down_bump (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint y_offset,
|
|
|
|
gint curve_start_offset,
|
|
|
|
gint steps,
|
|
|
|
gdouble delta,
|
|
|
|
gint counter)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint x, y;
|
|
|
|
gint index;
|
|
|
|
gint last_index1 = -1;
|
|
|
|
gint last_index2 = -1;
|
|
|
|
gint rowstride;
|
|
|
|
gint temp;
|
|
|
|
gint j = counter;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
|
|
|
|
for (i = 0; i < steps; i++)
|
|
|
|
{
|
|
|
|
x = curve_start_offset
|
|
|
|
+ globals.blend_inner_cachex1[DOWN][j][i];
|
|
|
|
y = y_offset
|
|
|
|
+ globals.blend_inner_cachey1[DOWN][j][i];
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
if (index != last_index1)
|
|
|
|
{
|
|
|
|
if (i < steps / 1.2)
|
|
|
|
{
|
|
|
|
LIGHTEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
DARKEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
}
|
|
|
|
last_index1 = index;
|
|
|
|
}
|
|
|
|
|
|
|
|
x = curve_start_offset
|
|
|
|
+ globals.blend_inner_cachex2[DOWN][j][i];
|
|
|
|
y = y_offset
|
|
|
|
+ globals.blend_inner_cachey2[DOWN][j][i];
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
if (index != last_index2)
|
|
|
|
{
|
|
|
|
DARKEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
last_index2 = index;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
lighten_down_bump (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint y_offset,
|
|
|
|
gint curve_start_offset,
|
|
|
|
gint steps,
|
|
|
|
gdouble delta,
|
|
|
|
gint counter)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint x, y;
|
|
|
|
gint index;
|
|
|
|
gint last_index1 = -1;
|
|
|
|
gint last_index2 = -1;
|
|
|
|
gint rowstride;
|
|
|
|
gint temp;
|
|
|
|
gint j = counter;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
|
|
|
|
for (i = 0; i < steps; i++)
|
|
|
|
{
|
|
|
|
x = curve_start_offset
|
|
|
|
+ globals.blend_outer_cachex1[DOWN][j][i];
|
|
|
|
y = y_offset
|
|
|
|
+ globals.blend_outer_cachey1[DOWN][j][i];
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
if (index != last_index1)
|
|
|
|
{
|
|
|
|
if (i < steps / 1.2)
|
|
|
|
{
|
|
|
|
DARKEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
LIGHTEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
}
|
|
|
|
last_index1 = index;
|
|
|
|
}
|
|
|
|
|
|
|
|
x = curve_start_offset
|
|
|
|
+ globals.blend_outer_cachex2[DOWN][j][i];
|
|
|
|
y = y_offset
|
|
|
|
+ globals.blend_outer_cachey2[DOWN][j][i];
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
if (index != last_index2)
|
|
|
|
{
|
|
|
|
LIGHTEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
last_index2 = index;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
draw_bezier_line (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint steps,
|
|
|
|
gint *cx,
|
|
|
|
gint *cy)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint x, y;
|
|
|
|
gint index;
|
|
|
|
gint rowstride;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
|
|
|
|
for (i = 0; i < steps; i++)
|
|
|
|
{
|
|
|
|
x = cx[i];
|
|
|
|
y = cy[i];
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
DRAW_POINT (buffer, bufsize, index);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
darken_bezier_line (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint x_offset,
|
|
|
|
gint y_offset,
|
|
|
|
gint steps,
|
|
|
|
gint *cx,
|
|
|
|
gint *cy,
|
|
|
|
gdouble delta)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint x, y;
|
|
|
|
gint index;
|
|
|
|
gint last_index = -1;
|
|
|
|
gint rowstride;
|
|
|
|
gint temp;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
|
|
|
|
for (i = 0; i < steps; i++)
|
|
|
|
{
|
|
|
|
x = cx[i] + x_offset;
|
|
|
|
y = cy[i] + y_offset;
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
if (index != last_index)
|
|
|
|
{
|
|
|
|
DARKEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
last_index = index;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
lighten_bezier_line (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint bytes,
|
|
|
|
gint x_offset,
|
|
|
|
gint y_offset,
|
|
|
|
gint steps,
|
|
|
|
gint *cx,
|
|
|
|
gint *cy,
|
|
|
|
gdouble delta)
|
|
|
|
{
|
|
|
|
gint i;
|
|
|
|
gint x, y;
|
|
|
|
gint index;
|
|
|
|
gint last_index = -1;
|
|
|
|
gint rowstride;
|
|
|
|
gint temp;
|
|
|
|
|
|
|
|
rowstride = bytes * width;
|
|
|
|
|
|
|
|
for (i = 0; i < steps; i++)
|
|
|
|
{
|
|
|
|
x = cx[i] + x_offset;
|
|
|
|
y = cy[i] + y_offset;
|
|
|
|
index = y * rowstride + x * bytes;
|
|
|
|
if (index != last_index)
|
|
|
|
{
|
|
|
|
LIGHTEN_POINT (buffer, bufsize, index, delta, temp);
|
|
|
|
last_index = index;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
draw_bezier_vertical_border (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint height,
|
|
|
|
gint bytes,
|
|
|
|
gint x_offset,
|
|
|
|
gint xtiles,
|
|
|
|
gint ytiles,
|
|
|
|
gint blend_lines,
|
|
|
|
gdouble blend_amount,
|
|
|
|
gint steps)
|
|
|
|
{
|
|
|
|
gint i, j;
|
|
|
|
gint tile_width = width / xtiles;
|
|
|
|
gint tile_height = height / ytiles;
|
|
|
|
gint tile_height_eighth = tile_height / 8;
|
|
|
|
gint curve_start_offset = 3 * tile_height_eighth;
|
|
|
|
gint curve_end_offset = curve_start_offset + 2 * tile_height_eighth;
|
|
|
|
gint px[4], py[4];
|
|
|
|
gint y_offset = 0;
|
|
|
|
gdouble delta;
|
|
|
|
gdouble sigma = blend_amount / blend_lines;
|
|
|
|
gint right;
|
|
|
|
gint *cachex, *cachey;
|
|
|
|
|
|
|
|
cachex = g_new (gint, steps);
|
|
|
|
cachey = g_new (gint, steps);
|
|
|
|
|
|
|
|
for (i = 0; i < ytiles; i++)
|
|
|
|
{
|
|
|
|
right = g_random_int_range (0, 2);
|
|
|
|
|
|
|
|
px[0] = px[3] = x_offset;
|
|
|
|
px[1] = x_offset + WALL_XFACTOR2 * tile_width * FUDGE;
|
|
|
|
px[2] = x_offset + WALL_XFACTOR3 * tile_width * FUDGE;
|
|
|
|
py[0] = y_offset;
|
|
|
|
py[1] = y_offset + WALL_YCONS2 * tile_height;
|
|
|
|
py[2] = y_offset + WALL_YCONS3 * tile_height;
|
|
|
|
py[3] = y_offset + curve_start_offset;
|
|
|
|
|
|
|
|
if (right)
|
|
|
|
{
|
|
|
|
px[1] = x_offset - WALL_XFACTOR2 * tile_width;
|
|
|
|
px[2] = x_offset - WALL_XFACTOR3 * tile_width;
|
|
|
|
}
|
|
|
|
generate_bezier (px, py, steps, cachex, cachey);
|
|
|
|
draw_bezier_line (buffer, bufsize, width, bytes, steps, cachex, cachey);
|
|
|
|
delta = blend_amount;
|
|
|
|
for (j = 0; j < blend_lines; j++)
|
|
|
|
{
|
|
|
|
px[0] = -j - 1;
|
|
|
|
darken_bezier_line (buffer, bufsize, width, bytes, px[0], 0,
|
|
|
|
steps, cachex, cachey, delta);
|
|
|
|
px[0] = j + 1;
|
|
|
|
lighten_bezier_line (buffer, bufsize, width, bytes, px[0], 0,
|
|
|
|
steps, cachex, cachey, delta);
|
|
|
|
delta -= sigma;
|
|
|
|
}
|
|
|
|
if (right)
|
|
|
|
{
|
|
|
|
draw_right_bump (buffer, bufsize, width, bytes, x_offset,
|
|
|
|
y_offset + curve_start_offset,
|
|
|
|
globals.steps[RIGHT]);
|
|
|
|
delta = blend_amount;
|
|
|
|
for (j = 0; j < blend_lines; j++)
|
|
|
|
{
|
|
|
|
/* use to be -j -1 */
|
|
|
|
darken_right_bump (buffer, bufsize, width, bytes, x_offset,
|
|
|
|
y_offset + curve_start_offset,
|
|
|
|
globals.steps[RIGHT], delta, j);
|
|
|
|
/* use to be +j + 1 */
|
|
|
|
lighten_right_bump (buffer, bufsize, width, bytes, x_offset,
|
|
|
|
y_offset + curve_start_offset,
|
|
|
|
globals.steps[RIGHT], delta, j);
|
|
|
|
delta -= sigma;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
draw_left_bump (buffer, bufsize, width, bytes, x_offset,
|
|
|
|
y_offset + curve_start_offset,
|
|
|
|
globals.steps[LEFT]);
|
|
|
|
delta = blend_amount;
|
|
|
|
for (j = 0; j < blend_lines; j++)
|
|
|
|
{
|
|
|
|
/* use to be -j -1 */
|
|
|
|
darken_left_bump (buffer, bufsize, width, bytes, x_offset,
|
|
|
|
y_offset + curve_start_offset,
|
|
|
|
globals.steps[LEFT], delta, j);
|
|
|
|
/* use to be -j - 1 */
|
|
|
|
lighten_left_bump (buffer, bufsize, width, bytes, x_offset,
|
|
|
|
y_offset + curve_start_offset,
|
|
|
|
globals.steps[LEFT], delta, j);
|
|
|
|
delta -= sigma;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
px[0] = px[3] = x_offset;
|
|
|
|
px[1] = x_offset + WALL_XFACTOR2 * tile_width * FUDGE;
|
|
|
|
px[2] = x_offset + WALL_XFACTOR3 * tile_width * FUDGE;
|
|
|
|
py[0] = y_offset + curve_end_offset;
|
|
|
|
py[1] = y_offset + curve_end_offset + WALL_YCONS2 * tile_height;
|
|
|
|
py[2] = y_offset + curve_end_offset + WALL_YCONS3 * tile_height;
|
|
|
|
py[3] = globals.gridy[i];
|
|
|
|
if (right)
|
|
|
|
{
|
|
|
|
px[1] = x_offset - WALL_XFACTOR2 * tile_width;
|
|
|
|
px[2] = x_offset - WALL_XFACTOR3 * tile_width;
|
|
|
|
}
|
|
|
|
generate_bezier (px, py, steps, cachex, cachey);
|
|
|
|
draw_bezier_line (buffer, bufsize, width, bytes, steps, cachex, cachey);
|
|
|
|
delta = blend_amount;
|
|
|
|
for (j = 0; j < blend_lines; j++)
|
|
|
|
{
|
|
|
|
px[0] = -j - 1;
|
|
|
|
darken_bezier_line (buffer, bufsize, width, bytes, px[0], 0,
|
|
|
|
steps, cachex, cachey, delta);
|
|
|
|
px[0] = j + 1;
|
|
|
|
lighten_bezier_line (buffer, bufsize, width, bytes, px[0], 0,
|
|
|
|
steps, cachex, cachey, delta);
|
|
|
|
delta -= sigma;
|
|
|
|
}
|
|
|
|
y_offset = globals.gridy[i];
|
|
|
|
} /* for */
|
|
|
|
g_free(cachex);
|
|
|
|
g_free(cachey);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
draw_bezier_horizontal_border (guchar *buffer,
|
|
|
|
gint bufsize,
|
|
|
|
gint width,
|
|
|
|
gint height,
|
|
|
|
gint bytes,
|
|
|
|
gint y_offset,
|
|
|
|
gint xtiles,
|
|
|
|
gint ytiles,
|
|
|
|
gint blend_lines,
|
|
|
|
gdouble blend_amount,
|
|
|
|
gint steps)
|
|
|
|
{
|
|
|
|
gint i, j;
|
|
|
|
gint tile_width = width / xtiles;
|
|
|
|
gint tile_height = height / ytiles;
|
|
|
|
gint tile_width_eighth = tile_width / 8;
|
|
|
|
gint curve_start_offset = 3 * tile_width_eighth;
|
|
|
|
gint curve_end_offset = curve_start_offset + 2 * tile_width_eighth;
|
|
|
|
gint px[4], py[4];
|
|
|
|
gint x_offset = 0;
|
|
|
|
gdouble delta;
|
|
|
|
gdouble sigma = blend_amount / blend_lines;
|
|
|
|
gint up;
|
|
|
|
gint *cachex, *cachey;
|
|
|
|
|
|
|
|
cachex = g_new (gint, steps);
|
|
|
|
cachey = g_new (gint, steps);
|
|
|
|
|
|
|
|
for (i = 0; i < xtiles; i++)
|
|
|
|
{
|
|
|
|
up = g_random_int_range (0, 2);
|
|
|
|
|
|
|
|
px[0] = x_offset;
|
|
|
|
px[1] = x_offset + WALL_XCONS2 * tile_width;
|
|
|
|
px[2] = x_offset + WALL_XCONS3 * tile_width;
|
|
|
|
px[3] = x_offset + curve_start_offset;
|
|
|
|
py[0] = py[3] = y_offset;
|
|
|
|
py[1] = y_offset + WALL_YFACTOR2 * tile_height * FUDGE;
|
|
|
|
py[2] = y_offset + WALL_YFACTOR3 * tile_height * FUDGE;
|
|
|
|
if (!up)
|
|
|
|
{
|
|
|
|
py[1] = y_offset - WALL_YFACTOR2 * tile_height;
|
|
|
|
py[2] = y_offset - WALL_YFACTOR3 * tile_height;
|
|
|
|
}
|
|
|
|
generate_bezier (px, py, steps, cachex, cachey);
|
|
|
|
draw_bezier_line (buffer, bufsize, width, bytes, steps, cachex, cachey);
|
|
|
|
delta = blend_amount;
|
|
|
|
for (j = 0; j < blend_lines; j++)
|
|
|
|
{
|
|
|
|
py[0] = -j - 1;
|
|
|
|
darken_bezier_line (buffer, bufsize, width, bytes, 0, py[0],
|
|
|
|
steps, cachex, cachey, delta);
|
|
|
|
py[0] = j + 1;
|
|
|
|
lighten_bezier_line (buffer, bufsize, width, bytes, 0, py[0],
|
|
|
|
steps, cachex, cachey, delta);
|
|
|
|
delta -= sigma;
|
|
|
|
}
|
|
|
|
/* bumps */
|
|
|
|
if (up)
|
|
|
|
{
|
|
|
|
draw_up_bump (buffer, bufsize, width, bytes, y_offset,
|
|
|
|
x_offset + curve_start_offset,
|
|
|
|
globals.steps[UP]);
|
|
|
|
delta = blend_amount;
|
|
|
|
for (j = 0; j < blend_lines; j++)
|
|
|
|
{
|
|
|
|
/* use to be -j -1 */
|
|
|
|
darken_up_bump (buffer, bufsize, width, bytes, y_offset,
|
|
|
|
x_offset + curve_start_offset,
|
|
|
|
globals.steps[UP], delta, j);
|
|
|
|
/* use to be +j + 1 */
|
|
|
|
lighten_up_bump (buffer, bufsize, width, bytes, y_offset,
|
|
|
|
x_offset + curve_start_offset,
|
|
|
|
globals.steps[UP], delta, j);
|
|
|
|
delta -= sigma;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
draw_down_bump (buffer, bufsize, width, bytes, y_offset,
|
|
|
|
x_offset + curve_start_offset,
|
|
|
|
globals.steps[DOWN]);
|
|
|
|
delta = blend_amount;
|
|
|
|
for (j = 0; j < blend_lines; j++)
|
|
|
|
{
|
|
|
|
/* use to be +j + 1 */
|
|
|
|
darken_down_bump (buffer, bufsize, width, bytes, y_offset,
|
|
|
|
x_offset + curve_start_offset,
|
|
|
|
globals.steps[DOWN], delta, j);
|
|
|
|
/* use to be -j -1 */
|
|
|
|
lighten_down_bump (buffer, bufsize, width, bytes, y_offset,
|
|
|
|
x_offset + curve_start_offset,
|
|
|
|
globals.steps[DOWN], delta, j);
|
|
|
|
delta -= sigma;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/* ending side wall line */
|
|
|
|
px[0] = x_offset + curve_end_offset;
|
|
|
|
px[1] = x_offset + curve_end_offset + WALL_XCONS2 * tile_width;
|
|
|
|
px[2] = x_offset + curve_end_offset + WALL_XCONS3 * tile_width;
|
|
|
|
px[3] = globals.gridx[i];
|
|
|
|
py[0] = py[3] = y_offset;
|
|
|
|
py[1] = y_offset + WALL_YFACTOR2 * tile_height * FUDGE;
|
|
|
|
py[2] = y_offset + WALL_YFACTOR3 * tile_height * FUDGE;
|
|
|
|
if (!up)
|
|
|
|
{
|
|
|
|
py[1] = y_offset - WALL_YFACTOR2 * tile_height;
|
|
|
|
py[2] = y_offset - WALL_YFACTOR3 * tile_height;
|
|
|
|
}
|
|
|
|
generate_bezier (px, py, steps, cachex, cachey);
|
|
|
|
draw_bezier_line (buffer, bufsize, width, bytes, steps, cachex, cachey);
|
|
|
|
delta = blend_amount;
|
|
|
|
for (j = 0; j < blend_lines; j++)
|
|
|
|
{
|
|
|
|
py[0] = -j - 1;
|
|
|
|
darken_bezier_line (buffer, bufsize, width, bytes, 0, py[0],
|
|
|
|
steps, cachex, cachey, delta);
|
|
|
|
py[0] = j + 1;
|
|
|
|
lighten_bezier_line (buffer, bufsize, width, bytes, 0, py[0],
|
|
|
|
steps, cachex, cachey, delta);
|
|
|
|
delta -= sigma;
|
|
|
|
}
|
|
|
|
x_offset = globals.gridx[i];
|
|
|
|
} /* for */
|
|
|
|
g_free(cachex);
|
|
|
|
g_free(cachey);
|
|
|
|
}
|
|
|
|
|
|
|
|
/********************************************************
|
|
|
|
GUI
|
|
|
|
********************************************************/
|
|
|
|
|
|
|
|
static gboolean
|
|
|
|
jigsaw_dialog (PikaProcedure *procedure,
|
|
|
|
GObject *config,
|
|
|
|
PikaDrawable *drawable)
|
|
|
|
{
|
|
|
|
GtkWidget *dialog;
|
|
|
|
GtkWidget *preview;
|
|
|
|
GtkWidget *frame;
|
|
|
|
GtkWidget *scale;
|
|
|
|
GtkListStore *store;
|
|
|
|
gboolean run;
|
|
|
|
|
|
|
|
pika_ui_init (PLUG_IN_BINARY);
|
|
|
|
|
|
|
|
dialog = pika_procedure_dialog_new (procedure,
|
|
|
|
PIKA_PROCEDURE_CONFIG (config),
|
|
|
|
_("Jigsaw"));
|
|
|
|
|
|
|
|
pika_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
|
|
|
|
GTK_RESPONSE_OK,
|
|
|
|
GTK_RESPONSE_CANCEL,
|
|
|
|
-1);
|
|
|
|
|
|
|
|
pika_window_set_transient (GTK_WINDOW (dialog));
|
|
|
|
|
|
|
|
preview = pika_drawable_preview_new_from_drawable (drawable);
|
|
|
|
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
|
|
|
|
preview, TRUE, TRUE, 0);
|
|
|
|
gtk_widget_set_margin_bottom (preview, 12);
|
|
|
|
gtk_widget_show (preview);
|
|
|
|
|
|
|
|
/* xtiles */
|
|
|
|
scale = pika_procedure_dialog_get_scale_entry (PIKA_PROCEDURE_DIALOG (dialog),
|
|
|
|
"x", 1.0);
|
|
|
|
|
|
|
|
/* ytiles */
|
|
|
|
scale = pika_procedure_dialog_get_scale_entry (PIKA_PROCEDURE_DIALOG (dialog),
|
|
|
|
"y", 1.0);
|
|
|
|
gtk_widget_set_margin_bottom (scale, 12);
|
|
|
|
|
|
|
|
pika_procedure_dialog_get_label (PIKA_PROCEDURE_DIALOG (dialog),
|
2023-10-30 23:55:30 +01:00
|
|
|
"num-tiles-label", _("Number of Tiles"),
|
|
|
|
FALSE, FALSE);
|
2023-09-26 00:35:21 +02:00
|
|
|
pika_procedure_dialog_fill_box (PIKA_PROCEDURE_DIALOG (dialog),
|
|
|
|
"num-tiles-vbox", "x", "y", NULL);
|
|
|
|
pika_procedure_dialog_fill_frame (PIKA_PROCEDURE_DIALOG (dialog),
|
|
|
|
"num-tiles-frame", "num-tiles-label",
|
|
|
|
FALSE, "num-tiles-vbox");
|
|
|
|
|
|
|
|
/* number of blending lines */
|
|
|
|
scale = pika_procedure_dialog_get_scale_entry (PIKA_PROCEDURE_DIALOG (dialog),
|
|
|
|
"blend-lines", 1.0);
|
|
|
|
|
|
|
|
/* blending amount */
|
|
|
|
scale = pika_procedure_dialog_get_scale_entry (PIKA_PROCEDURE_DIALOG (dialog),
|
|
|
|
"blend-amount", 1.0);
|
|
|
|
gtk_widget_set_margin_bottom (scale, 12);
|
|
|
|
|
|
|
|
pika_procedure_dialog_get_label (PIKA_PROCEDURE_DIALOG (dialog),
|
2023-10-30 23:55:30 +01:00
|
|
|
"bevel-label", _("Bevel Edges"),
|
|
|
|
FALSE, FALSE);
|
2023-09-26 00:35:21 +02:00
|
|
|
pika_procedure_dialog_fill_box (PIKA_PROCEDURE_DIALOG (dialog),
|
|
|
|
"bevel-vbox", "blend-lines", "blend-amount",
|
|
|
|
NULL);
|
|
|
|
pika_procedure_dialog_fill_frame (PIKA_PROCEDURE_DIALOG (dialog),
|
|
|
|
"bevel-frame", "bevel-label", FALSE,
|
|
|
|
"bevel-vbox");
|
|
|
|
|
|
|
|
/* frame for primitive radio buttons */
|
|
|
|
store = pika_int_store_new (_("Square"), BEZIER_1,
|
|
|
|
_("Curved"), BEZIER_2,
|
|
|
|
NULL);
|
|
|
|
frame = pika_procedure_dialog_get_int_radio (PIKA_PROCEDURE_DIALOG (dialog),
|
|
|
|
"style", PIKA_INT_STORE (store));
|
|
|
|
gtk_widget_set_margin_bottom (frame, 12);
|
|
|
|
|
|
|
|
pika_procedure_dialog_fill_box (PIKA_PROCEDURE_DIALOG (dialog),
|
|
|
|
"jigsaw-vbox", "num-tiles-frame",
|
|
|
|
"bevel-frame", "style", NULL);
|
|
|
|
|
|
|
|
g_object_set_data (config, "drawable", drawable);
|
|
|
|
|
|
|
|
g_signal_connect (preview, "invalidated",
|
|
|
|
G_CALLBACK (jigsaw_preview),
|
|
|
|
config);
|
|
|
|
|
|
|
|
g_signal_connect_swapped (config, "notify",
|
|
|
|
G_CALLBACK (pika_preview_invalidate),
|
|
|
|
preview);
|
|
|
|
|
|
|
|
pika_procedure_dialog_fill (PIKA_PROCEDURE_DIALOG (dialog),
|
|
|
|
"jigsaw-vbox", NULL);
|
|
|
|
|
|
|
|
gtk_widget_show (dialog);
|
|
|
|
|
|
|
|
run = pika_procedure_dialog_run (PIKA_PROCEDURE_DIALOG (dialog));
|
|
|
|
|
|
|
|
gtk_widget_destroy (dialog);
|
|
|
|
|
|
|
|
return run;
|
|
|
|
}
|