WIP "Comic Dots" magic tool
For https://sourceforge.net/p/tuxpaint/feature-requests/257/
This commit is contained in:
Bill Kendrick
parent
134c1781c4
commit
e8418cc330
133 changed files with 2508 additions and 130 deletions
321
magic/src/comicdot.c
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321
magic/src/comicdot.c
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/*
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comicdot.c
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Paints a pattern of circular dots, simulating the effect of
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older comic books that used the "Ben Day Process"
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(https://en.wikipedia.org/wiki/Ben_Day_process)
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Copyright (c) 2024 by Bill Kendrick
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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 2 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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(See COPYING.txt)
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Last updated: September 16, 2024
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*/
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#include <stdio.h>
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#include <string.h>
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#include "tp_magic_api.h"
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#include "SDL_image.h"
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#include "SDL_mixer.h"
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static Mix_Chunk *comicdot_snd;
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static int comicdot_radius = 16;
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static int comicdot_r, comicdot_g, comicdot_b;
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enum {
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COMICDOT_LG,
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COMICDOT_SM,
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NUM_COMICDOT_SIZES
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};
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SDL_Surface * comicdot_pattern[NUM_COMICDOT_SIZES];
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Uint32 comicdot_api_version(void);
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int comicdot_init(magic_api * api, Uint8 disabled_features, Uint8 complexity_level);
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int comicdot_get_tool_count(magic_api * api);
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SDL_Surface *comicdot_get_icon(magic_api * api, int which);
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char *comicdot_get_name(magic_api * api, int which);
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int comicdot_get_group(magic_api * api, int which);
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int comicdot_get_order(int which);
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char *comicdot_get_description(magic_api * api, int which, int mode);
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void comicdot_drag(magic_api * api, int which, SDL_Surface * canvas,
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SDL_Surface * last, int ox, int oy, int x, int y, SDL_Rect * update_rect);
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void comicdot_click(magic_api * api, int which, int mode,
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SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect);
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void comicdot_release(magic_api * api, int which,
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SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect);
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void comicdot_shutdown(magic_api * api);
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void comicdot_set_color(magic_api * api, int which, SDL_Surface * canvas,
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SDL_Surface * last, Uint8 r, Uint8 g, Uint8 b, SDL_Rect * update_rect);
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int comicdot_requires_colors(magic_api * api, int which);
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void comicdot_switchin(magic_api * api, int which, int mode, SDL_Surface * canvas);
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void comicdot_switchout(magic_api * api, int which, int mode, SDL_Surface * canvas);
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int comicdot_modes(magic_api * api, int which);
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Uint8 comicdot_accepted_sizes(magic_api * api, int which, int mode);
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Uint8 comicdot_default_size(magic_api * api, int which, int mode);
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void comicdot_set_size(magic_api * api, int which, int mode, SDL_Surface * canvas, SDL_Surface * last, Uint8 size,
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SDL_Rect * update_rect);
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Uint32 comicdot_api_version(void)
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{
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return (TP_MAGIC_API_VERSION);
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}
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int comicdot_init(magic_api * api, Uint8 disabled_features ATTRIBUTE_UNUSED, Uint8 complexity_level ATTRIBUTE_UNUSED)
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{
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char fname[1024];
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int i;
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snprintf(fname, sizeof(fname), "%ssounds/magic/xor.ogg", api->data_directory); // FIXME
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comicdot_snd = Mix_LoadWAV(fname);
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/* Load base pattern image */
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snprintf(fname, sizeof(fname), "%simages/magic/comicdot-pattern.png", api->data_directory);
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comicdot_pattern[0] = IMG_Load(fname);
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if (comicdot_pattern[0] == NULL)
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{
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fprintf(stderr, "Can't open %s\n", fname);
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return 0;
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}
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/* Create the scaled versions */
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for (i = 1; i < NUM_COMICDOT_SIZES; i++)
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{
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int size;
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size = (100 * (NUM_COMICDOT_SIZES - i)) / NUM_COMICDOT_SIZES;
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comicdot_pattern[i] = api->scale(comicdot_pattern[0],
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(comicdot_pattern[0]->w * size) / 100,
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(comicdot_pattern[0]->h * size) / 100, 1);
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if (comicdot_pattern[i] == NULL)
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{
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fprintf(stderr, "Can't scale %s (%d%%)\n", fname, size);
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return 0;
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}
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}
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return (1);
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}
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int comicdot_get_tool_count(magic_api * api ATTRIBUTE_UNUSED)
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{
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return (NUM_COMICDOT_SIZES);
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}
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SDL_Surface *comicdot_get_icon(magic_api * api, int which)
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{
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char fname[1024];
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snprintf(fname, sizeof(fname), "%simages/magic/xor.png", api->data_directory); // FIXME [which]
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return (IMG_Load(fname));
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}
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char *comicdot_get_name(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
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{
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return (strdup(gettext_noop("Comic Dots")));
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}
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int comicdot_get_group(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
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{
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return MAGIC_TYPE_PAINTING;
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}
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int comicdot_get_order(int which ATTRIBUTE_UNUSED)
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{
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return 1910;
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}
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char *comicdot_get_description(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode)
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{
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if (mode == MODE_PAINT)
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return (strdup(gettext_noop("Click and drag to draw an a dot pattern on your picture")));
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else
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return (strdup(gettext_noop("Click to apply a dot pattern on your entire picture")));
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}
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static void do_comicdot(void *ptr, int which,
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SDL_Surface * canvas, SDL_Surface * last, int x, int y)
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{
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magic_api *api = (magic_api *) ptr;
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Uint8 r1, g1, b1, r, g, b, n, _, nr, ng, nb;
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Uint32 pixel;
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int offx, offy;
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SDL_Surface * pat;
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pat = comicdot_pattern[which];
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offx = (((comicdot_r + comicdot_g) / 2) * pat->w) / 255;
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offy = (((comicdot_b - comicdot_g) / 2) * pat->h) / 255;
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SDL_GetRGB(api->getpixel(last, x, y), last->format, &r1, &g1, &b1);
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SDL_GetRGB(api->getpixel(pat, (x + offx) % pat->w, (y + offy) % pat->h), pat->format, &n, &_, &_);
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r = ((r1 * n) + (comicdot_r * (255 - n))) / 255;
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g = ((g1 * n) + (comicdot_g * (255 - n))) / 255;
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b = ((b1 * n) + (comicdot_b * (255 - n))) / 255;
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nr = (r1 * r) / 255;
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ng = (g1 * g) / 255;
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nb = (b1 * b) / 255;
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pixel = SDL_MapRGB(canvas->format, nr, ng, nb);
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api->putpixel(canvas, x, y, pixel);
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}
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static void do_comicdot_circle(void *ptr, int which ATTRIBUTE_UNUSED,
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SDL_Surface * canvas, SDL_Surface * last ATTRIBUTE_UNUSED, int x, int y)
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{
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magic_api *api = (magic_api *) ptr;
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int xx, yy;
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for (yy = -comicdot_radius; yy < comicdot_radius; yy++)
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{
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for (xx = -comicdot_radius; xx < comicdot_radius; xx++)
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{
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if (api->in_circle(xx, yy, comicdot_radius))
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{
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if (!api->touched(xx + x, yy + y))
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do_comicdot(api, which, canvas, last, x + xx, y + yy);
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}
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}
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}
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}
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void comicdot_drag(magic_api * api, int which, SDL_Surface * canvas,
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SDL_Surface * last ATTRIBUTE_UNUSED, int ox, int oy, int x, int y, SDL_Rect * update_rect)
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{
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api->line((void *)api, which, canvas, last, ox, oy, x, y, 1, do_comicdot_circle);
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if (ox > x)
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{
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int tmp = ox;
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ox = x;
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x = tmp;
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}
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if (oy > y)
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{
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int tmp = oy;
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oy = y;
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y = tmp;
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}
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update_rect->x = ox - comicdot_radius;
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update_rect->y = oy - comicdot_radius;
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update_rect->w = (x + comicdot_radius) - update_rect->x;
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update_rect->h = (y + comicdot_radius) - update_rect->y;
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api->playsound(comicdot_snd, (x * 255) / canvas->w, 255);
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}
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void comicdot_click(magic_api * api, int which, int mode,
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SDL_Surface * canvas, SDL_Surface * last ATTRIBUTE_UNUSED, int x, int y, SDL_Rect * update_rect)
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{
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if (mode == MODE_PAINT)
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comicdot_drag(api, which, canvas, last, x, y, x, y, update_rect);
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else
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{
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int xx, yy;
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for (yy = 0; yy < canvas->h; yy++)
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for (xx = 0; xx < canvas->w; xx++)
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do_comicdot(api, which, canvas, last, xx, yy);
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update_rect->x = 0;
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update_rect->y = 0;
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update_rect->w = canvas->w;
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update_rect->h = canvas->h;
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api->playsound(comicdot_snd, (x * 255) / canvas->w, 255);
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}
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}
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void comicdot_release(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED,
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SDL_Surface * canvas ATTRIBUTE_UNUSED,
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SDL_Surface * last ATTRIBUTE_UNUSED, int x ATTRIBUTE_UNUSED,
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int y ATTRIBUTE_UNUSED, SDL_Rect * update_rect ATTRIBUTE_UNUSED)
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{
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}
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void comicdot_shutdown(magic_api * api ATTRIBUTE_UNUSED)
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{
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int i;
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if (comicdot_snd != NULL)
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Mix_FreeChunk(comicdot_snd);
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for (i = 0; i < NUM_COMICDOT_SIZES; i++)
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{
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if (comicdot_pattern[i] != NULL)
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{
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SDL_FreeSurface(comicdot_pattern[i]);
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comicdot_pattern[i] = NULL;
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}
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}
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}
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void comicdot_set_color(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, SDL_Surface * canvas ATTRIBUTE_UNUSED,
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SDL_Surface * last ATTRIBUTE_UNUSED, Uint8 r, Uint8 g, Uint8 b,
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SDL_Rect * update_rect ATTRIBUTE_UNUSED)
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{
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comicdot_r = r;
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comicdot_g = g;
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comicdot_b = b;
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}
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int comicdot_requires_colors(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
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{
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return 1;
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}
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void comicdot_switchin(magic_api * api ATTRIBUTE_UNUSED,
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int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED, SDL_Surface * canvas ATTRIBUTE_UNUSED)
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{
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}
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void comicdot_switchout(magic_api * api ATTRIBUTE_UNUSED,
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int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED, SDL_Surface * canvas ATTRIBUTE_UNUSED)
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{
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}
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int comicdot_modes(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
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{
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return (MODE_PAINT | MODE_FULLSCREEN);
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}
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Uint8 comicdot_accepted_sizes(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode)
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{
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if (mode == MODE_PAINT)
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return 8;
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else
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return 0;
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}
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Uint8 comicdot_default_size(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED)
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{
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return 4;
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}
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void comicdot_set_size(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED,
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SDL_Surface * canvas ATTRIBUTE_UNUSED, SDL_Surface * last ATTRIBUTE_UNUSED,
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Uint8 size ATTRIBUTE_UNUSED, SDL_Rect * update_rect ATTRIBUTE_UNUSED)
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{
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comicdot_radius = size * 4;
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}
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