WIP "ASCII" ASCII art magic tool
This commit is contained in:
Bill Kendrick
parent
be4827cd03
commit
e0a34c1c7a
3 changed files with 351 additions and 0 deletions
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magic/icons/ascii-computer.png
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magic/icons/ascii-computer.png
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magic/icons/ascii-typewriter.png
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magic/icons/ascii-typewriter.png
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magic/src/ascii.c
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magic/src/ascii.c
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/*
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ascii.c
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Converts the image to ASCII art.
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Tux Paint - A simple drawing program for children.
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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 25, 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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enum {
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TOOL_TYPEWRITER,
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TOOL_COMPUTER,
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NUM_TOOLS
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};
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char * ascii_tool_names[NUM_TOOLS] = {
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"Typewriter",
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"Computer",
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};
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char * ascii_tool_filenames[NUM_TOOLS] = {
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"typewriter",
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"computer",
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};
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static Mix_Chunk *ascii_snd[NUM_TOOLS];
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/* For each variation, we'll have a bitmap with an arbitrary number
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* of potentially-proportionally-spaced characters (which we'll treat
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* as fixed-width), so we need to keep track of each character's X
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* poistion, how many characters there are, and the maximum width.
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*/
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SDL_Surface * ascii_bitmap[NUM_TOOLS];
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int ascii_char_x[NUM_TOOLS][256];
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int ascii_num_chars[NUM_TOOLS];
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int ascii_char_maxwidth[NUM_TOOLS];
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Uint32 ascii_api_version(void);
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int ascii_init(magic_api * api, Uint8 disabled_features, Uint8 complexity_level);
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int ascii_get_tool_count(magic_api * api);
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SDL_Surface *ascii_get_icon(magic_api * api, int which);
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char *ascii_get_name(magic_api * api, int which);
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int ascii_get_group(magic_api * api, int which);
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int ascii_get_order(int which);
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char *ascii_get_description(magic_api * api, int which, int mode);
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void ascii_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 ascii_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 ascii_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 ascii_shutdown(magic_api * api);
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void ascii_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 ascii_requires_colors(magic_api * api, int which);
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void ascii_switchin(magic_api * api, int which, int mode, SDL_Surface * canvas);
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void ascii_switchout(magic_api * api, int which, int mode, SDL_Surface * canvas);
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int ascii_modes(magic_api * api, int which);
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Uint8 ascii_accepted_sizes(magic_api * api, int which, int mode);
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Uint8 ascii_default_size(magic_api * api, int which, int mode);
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void ascii_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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void do_ascii_effect(void *ptr, int which, SDL_Surface * canvas, SDL_Surface * last, int x, int y);
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Uint32 ascii_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 ascii_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, j, x, y, xx, w, num_chars, all_clear;
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Uint32 clear_pixel, pixel;
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Uint8 r, g, b;
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for (i = 0; i < NUM_TOOLS; i++)
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{
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ascii_snd[i] = NULL;
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ascii_bitmap[i] = NULL;
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}
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for (i = 0; i < NUM_TOOLS; i++)
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{
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/* FIXME */
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snprintf(fname, sizeof(fname), "%ssounds/magic/ascii-%s.ogg", api->data_directory, ascii_tool_filenames[i]);
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snprintf(fname, sizeof(fname), "%ssounds/magic/xor.ogg", api->data_directory);
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ascii_snd[i] = Mix_LoadWAV(fname);
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snprintf(fname, sizeof(fname), "%simages/magic/ascii-%s.png", api->data_directory, ascii_tool_filenames[i]);
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ascii_bitmap[i] = IMG_Load(fname);
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if (ascii_bitmap[i] == NULL)
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{
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fprintf(stderr, "Cannot load %s\n", fname);
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return(0);
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}
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clear_pixel = api->getpixel(ascii_bitmap[i], 0, 0);
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printf("%s; clear pixel %d\n", fname, clear_pixel);
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num_chars = 0;
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for (x = 0; x < ascii_bitmap[i]->w; x++)
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{
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ascii_char_x[i][num_chars] = x;
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do
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{
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all_clear = 1;
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for (y = 0; y < ascii_bitmap[i]->h /* && all_clear */; y++) {
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pixel = api->getpixel(ascii_bitmap[i], x, y);
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if (pixel != clear_pixel)
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all_clear = 0;
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}
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if (all_clear)
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x++;
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}
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while (all_clear && x < ascii_bitmap[i]->w);
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all_clear = 0;
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for (xx = x; xx < ascii_bitmap[i]->w && !all_clear; xx++)
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{
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all_clear = 1;
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for (y = 0; y < ascii_bitmap[i]->h /* && all_clear */; y++)
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{
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pixel = api->getpixel(ascii_bitmap[i], xx, y);
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if (pixel != clear_pixel)
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{
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all_clear = 0;
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SDL_GetRGB(pixel, ascii_bitmap[i]->format, &r, &g, &b);
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if (r == 255 && g == 0 && b == 255)
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{
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/* Magenta counts as a connecting pixel, but we
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* want it to appear as the clear color */
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api->putpixel(ascii_bitmap[i], xx, y, clear_pixel);
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printf("x");
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}
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else
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{
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printf("#");
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}
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}
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else
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{
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printf("-");
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}
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}
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printf("\n");
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}
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x = xx;
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num_chars++;
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printf(".......................................\n");
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}
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ascii_num_chars[i] = num_chars;
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printf("%s has %d characters\n", fname, num_chars);
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ascii_char_x[i][num_chars] = x;
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ascii_char_maxwidth[i] = 0;
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for (j = 0; j < num_chars; j++)
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{
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w = ascii_char_x[i][j + 1] - ascii_char_x[i][j];
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printf("%d->%d = %d\n", j, j + 1, w);
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if (w > ascii_char_maxwidth[i])
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{
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ascii_char_maxwidth[i] = w;
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}
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}
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printf("%s max char width is %d\n", fname, ascii_char_maxwidth[i]);
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}
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return (1);
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}
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int ascii_get_tool_count(magic_api * api ATTRIBUTE_UNUSED)
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{
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return (1);
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}
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SDL_Surface *ascii_get_icon(magic_api * api, int which)
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{
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char fname[1024];
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/* FIXME */
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snprintf(fname, sizeof(fname), "%ssounds/magic/ascii-icon-%s.ogg", api->data_directory, ascii_tool_filenames[which]);
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snprintf(fname, sizeof(fname), "%simages/magic/xor.png", api->data_directory);
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return (IMG_Load(fname));
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}
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char *ascii_get_name(magic_api * api ATTRIBUTE_UNUSED, int which)
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{
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char tmp[1024];
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snprintf(tmp, sizeof(tmp), gettext("ASCII %s"), ascii_tool_names[which]);
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return(strdup(tmp));
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}
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int ascii_get_group(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
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{
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return MAGIC_TYPE_DISTORTS;
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}
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int ascii_get_order(int which)
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{
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return 800 + which; // FIXME
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}
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char *ascii_get_description(magic_api * api ATTRIBUTE_UNUSED, int which, int mode)
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{
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char tmp[1024];
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if (mode == MODE_PAINT)
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snprintf(tmp, sizeof(tmp), gettext("Click and drag to transform parts of your drawing to ASCII art (%s style)."), ascii_tool_names[which]);
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else
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snprintf(tmp, sizeof(tmp), gettext("Click to transform your entire drawing to ASCII art (%s style)."), ascii_tool_names[which]);
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return(strdup(tmp));
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}
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void ascii_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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{
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api->line((void *)api, which, canvas, last, ox, oy, x, y, 1, do_ascii_effect);
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/* FIXME */
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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(ascii_snd[which], (x * 255) / canvas->w, 255);
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}
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void ascii_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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{
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if (mode == MODE_PAINT)
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ascii_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_ascii_effect(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(ascii_snd[which], (x * 255) / canvas->w, 255);
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}
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}
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void ascii_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 ascii_shutdown(magic_api * api ATTRIBUTE_UNUSED)
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{
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int i;
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for (i = 0; i < NUM_TOOLS; i++)
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{
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if (ascii_snd[i] != NULL)
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Mix_FreeChunk(ascii_snd[i]);
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if (ascii_bitmap[i] != NULL)
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SDL_FreeSurface(ascii_bitmap[i]);
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}
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}
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void ascii_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 ATTRIBUTE_UNUSED, Uint8 g ATTRIBUTE_UNUSED,
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Uint8 b ATTRIBUTE_UNUSED, SDL_Rect * update_rect ATTRIBUTE_UNUSED)
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{
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}
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int ascii_requires_colors(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
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{
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return 0;
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}
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void ascii_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 ascii_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 ascii_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 ascii_accepted_sizes(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED)
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{
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return 0;
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}
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Uint8 ascii_default_size(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED)
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{
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return 0;
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}
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void ascii_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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}
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void do_ascii_effect(void *ptr, int which, 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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}
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