cacalabs
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libcaca
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libcaca/test/demo.c

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  1. /*

  2.  *  demo          demo for libcaca

  3.  *  Copyright (c) 2003 Sam Hocevar <sam@zoy.org>

  4.  *                All Rights Reserved

  5.  *

  6.  *  $Id$

  7.  *

  8.  *  This program is free software; you can redistribute it and/or

  9.  *  modify it under the terms of the Do What The Fuck You Want To

  10.  *  Public License, Version 2, as published by Sam Hocevar. See

  11.  *  http://sam.zoy.org/wtfpl/COPYING for more details.

  12.  */

  13. 

  14. #include "config.h"

  15. 

  16. #include <math.h>

  17. #include <string.h>

  18. #include <stdio.h>

  19. 

  20. #include "caca.h"

  21. 

  22. static void display_menu(void);

  23. 

  24. static void demo_all(void);

  25. 

  26. static void demo_color(void);

  27. static void demo_dots(void);

  28. static void demo_lines(void);

  29. static void demo_boxes(void);

  30. static void demo_ellipses(void);

  31. static void demo_triangles(void);

  32. static void demo_sprites(void);

  33. static void demo_render(void);

  34. 

  35. int bounds = 0;

  36. int outline = 0;

  37. int dithering = 0;

  38. struct cucul_sprite *sprite = NULL;

  39. 

  40. cucul_t *qq;

  41. caca_t *kk;

  42. 

  43. int main(int argc, char **argv)

  44. {

  45.     void (*demo)(void) = NULL;

  46.     int quit = 0;

  47. 

  48.     qq = cucul_init();

  49.     if(!qq)

  50.         return 1;

  51.     kk = caca_attach(qq);

  52.     if(!kk)

  53.         return 1;

  54. 

  55.     caca_set_delay(kk, 40000);

  56. 

  57.     /* Initialize data */

  58.     sprite = cucul_load_sprite(qq, DATADIR "/caca.txt");

  59.     if(!sprite)

  60.         sprite = cucul_load_sprite(qq, "caca.txt");

  61.     if(!sprite)

  62.         sprite = cucul_load_sprite(qq, "examples/caca.txt");

  63. 

  64.     /* Main menu */

  65.     display_menu();

  66.     caca_display(kk);

  67. 

  68.     /* Go ! */

  69.     while(!quit)

  70.     {

  71.         int menu = 0, mouse = 0, xmouse = 0, ymouse = 0;

  72.         int event;

  73. 

  74.         while((event = caca_get_event(kk, CACA_EVENT_ANY)))

  75.         {

  76.             if(demo && (event & CACA_EVENT_KEY_PRESS))

  77.             {

  78.                 menu = 1;

  79.                 demo = NULL;

  80.             }

  81.             else if(event & CACA_EVENT_KEY_PRESS)

  82.             {

  83.                 switch(event & 0xffff)

  84.                 {

  85.                 case 'q':

  86.                 case 'Q':

  87.                     demo = NULL;

  88.                     quit = 1;

  89.                     break;

  90.                 case 'o':

  91.                 case 'O':

  92.                     outline = (outline + 1) % 3;

  93.                     display_menu();

  94.                     break;

  95.                 case 'b':

  96.                 case 'B':

  97.                     bounds = (bounds + 1) % 2;

  98.                     display_menu();

  99.                     break;

  100.                 case 'd':

  101.                 case 'D':

  102.                     dithering = (dithering + 1) % 5;

  103.                     cucul_set_feature(qq, dithering);

  104.                     display_menu();

  105.                     break;

  106.                 case 'c':

  107.                     demo = demo_color;

  108.                     break;

  109.                 case 'f':

  110.                 case 'F':

  111.                     demo = demo_all;

  112.                     break;

  113.                 case '1':

  114.                     demo = demo_dots;

  115.                     break;

  116.                 case '2':

  117.                     demo = demo_lines;

  118.                     break;

  119.                 case '3':

  120.                     demo = demo_boxes;

  121.                     break;

  122.                 case '4':

  123.                     demo = demo_triangles;

  124.                     break;

  125.                 case '5':

  126.                     demo = demo_ellipses;

  127.                     break;

  128.                 case 's':

  129.                 case 'S':

  130.                     if(sprite)

  131.                         demo = demo_sprites;

  132.                     break;

  133.                 case 'r':

  134.                 case 'R':

  135.                     demo = demo_render;

  136.                     break;

  137.                 }

  138. 

  139.                 if(demo)

  140.                     cucul_clear(qq);

  141.             }

  142.             else if(event & CACA_EVENT_MOUSE_MOTION)

  143.             {

  144.                 mouse = 1;

  145.                 xmouse = (event & 0xfff000) >> 12;

  146.                 ymouse = event & 0xfff;

  147.             }

  148.         }

  149. 

  150.         if(menu || (mouse && !demo))

  151.         {

  152.             display_menu();

  153.             if(mouse && !demo)

  154.             {

  155.                 cucul_set_color(qq, CUCUL_COLOR_RED, CUCUL_COLOR_BLACK);

  156.                 cucul_putstr(qq, xmouse, ymouse, "|\\");

  157.             }

  158.             caca_display(kk);

  159.             mouse = menu = 0;

  160.         }

  161. 

  162.         if(demo)

  163.         {

  164.             demo();

  165. 

  166.             cucul_set_color(qq, CUCUL_COLOR_LIGHTGRAY, CUCUL_COLOR_BLACK);

  167.             cucul_draw_thin_box(qq, 1, 1, cucul_get_width(qq) - 2, cucul_get_height(qq) - 2);

  168.             cucul_printf(qq, 4, 1, "[%i.%i fps]----",

  169.                          1000000 / caca_get_rendertime(kk),

  170.                          (10000000 / caca_get_rendertime(kk)) % 10);

  171.             caca_display(kk);

  172.         }

  173.     }

  174. 

  175.     /* Clean up */

  176.     cucul_free_sprite(qq, sprite);

  177.     caca_detach(kk);

  178.     cucul_end(qq);

  179. 

  180.     return 0;

  181. }

  182. 

  183. static void display_menu(void)

  184. {

  185.     int xo = cucul_get_width(qq) - 2;

  186.     int yo = cucul_get_height(qq) - 2;

  187. 

  188.     cucul_clear(qq);

  189.     cucul_set_color(qq, CUCUL_COLOR_LIGHTGRAY, CUCUL_COLOR_BLACK);

  190.     cucul_draw_thin_box(qq, 1, 1, xo, yo);

  191. 

  192.     cucul_putstr(qq, (xo - strlen("libcaca demo")) / 2, 3, "libcaca demo");

  193.     cucul_putstr(qq, (xo - strlen("==============")) / 2, 4, "==============");

  194. 

  195.     cucul_putstr(qq, 4, 6, "demos:");

  196.     cucul_putstr(qq, 4, 7, "'f': full");

  197.     cucul_putstr(qq, 4, 8, "'1': dots");

  198.     cucul_putstr(qq, 4, 9, "'2': lines");

  199.     cucul_putstr(qq, 4, 10, "'3': boxes");

  200.     cucul_putstr(qq, 4, 11, "'4': triangles");

  201.     cucul_putstr(qq, 4, 12, "'5': ellipses");

  202.     cucul_putstr(qq, 4, 13, "'c': colour");

  203.     cucul_putstr(qq, 4, 14, "'r': render");

  204.     if(sprite)

  205.         cucul_putstr(qq, 4, 15, "'s': sprites");

  206. 

  207.     cucul_putstr(qq, 4, 16, "settings:");

  208.     cucul_printf(qq, 4, 17, "'o': outline: %s",

  209.                  outline == 0 ? "none" : outline == 1 ? "solid" : "thin");

  210.     cucul_printf(qq, 4, 18, "'b': drawing boundaries: %s",

  211.                  bounds == 0 ? "screen" : "infinite");

  212.     cucul_printf(qq, 4, 19, "'d': dithering (%s)",

  213.                  cucul_get_feature_name(dithering));

  214. 

  215.     cucul_putstr(qq, 4, yo - 2, "'q': quit");

  216. }

  217. 

  218. static void demo_all(void)

  219. {

  220.     static int i = 0;

  221. 

  222.     int j, xo, yo, xa, ya, xb, yb, xc, yc;

  223. 

  224.     i++;

  225. 

  226.     cucul_clear(qq);

  227. 

  228.     /* Draw the sun */

  229.     cucul_set_color(qq, CUCUL_COLOR_YELLOW, CUCUL_COLOR_BLACK);

  230.     xo = cucul_get_width(qq) / 4;

  231.     yo = cucul_get_height(qq) / 4 + 5 * sin(0.03*i);

  232. 

  233.     for(j = 0; j < 16; j++)

  234.     {

  235.         xa = xo - (30 + sin(0.03*i) * 8) * sin(0.03*i + M_PI*j/8);

  236.         ya = yo + (15 + sin(0.03*i) * 4) * cos(0.03*i + M_PI*j/8);

  237.         cucul_draw_thin_line(qq, xo, yo, xa, ya);

  238.     }

  239. 

  240.     j = 15 + sin(0.03*i) * 8;

  241.     cucul_set_color(qq, CUCUL_COLOR_WHITE, CUCUL_COLOR_BLACK);

  242.     cucul_fill_ellipse(qq, xo, yo, j, j / 2, '#');

  243.     cucul_set_color(qq, CUCUL_COLOR_YELLOW, CUCUL_COLOR_BLACK);

  244.     cucul_draw_ellipse(qq, xo, yo, j, j / 2, '#');

  245. 

  246.     /* Draw the pyramid */

  247.     xo = cucul_get_width(qq) * 5 / 8;

  248.     yo = 2;

  249. 

  250.     xa = cucul_get_width(qq) / 8 + sin(0.03*i) * 5;

  251.     ya = cucul_get_height(qq) / 2 + cos(0.03*i) * 5;

  252. 

  253.     xb = cucul_get_width(qq) - 10 - cos(0.02*i) * 10;

  254.     yb = cucul_get_height(qq) * 3 / 4 - 5 + sin(0.02*i) * 5;

  255. 

  256.     xc = cucul_get_width(qq) / 4 - sin(0.02*i) * 5;

  257.     yc = cucul_get_height(qq) * 3 / 4 + cos(0.02*i) * 5;

  258. 

  259.     cucul_set_color(qq, CUCUL_COLOR_GREEN, CUCUL_COLOR_BLACK);

  260.     cucul_fill_triangle(qq, xo, yo, xb, yb, xa, ya, '%');

  261.     cucul_set_color(qq, CUCUL_COLOR_YELLOW, CUCUL_COLOR_BLACK);

  262.     cucul_draw_thin_triangle(qq, xo, yo, xb, yb, xa, ya);

  263. 

  264.     cucul_set_color(qq, CUCUL_COLOR_RED, CUCUL_COLOR_BLACK);

  265.     cucul_fill_triangle(qq, xa, ya, xb, yb, xc, yc, '#');

  266.     cucul_set_color(qq, CUCUL_COLOR_YELLOW, CUCUL_COLOR_BLACK);

  267.     cucul_draw_thin_triangle(qq, xa, ya, xb, yb, xc, yc);

  268. 

  269.     cucul_set_color(qq, CUCUL_COLOR_BLUE, CUCUL_COLOR_BLACK);

  270.     cucul_fill_triangle(qq, xo, yo, xb, yb, xc, yc, '%');

  271.     cucul_set_color(qq, CUCUL_COLOR_YELLOW, CUCUL_COLOR_BLACK);

  272.     cucul_draw_thin_triangle(qq, xo, yo, xb, yb, xc, yc);

  273. 

  274.     /* Draw a background triangle */

  275.     xa = 2;

  276.     ya = 2;

  277. 

  278.     xb = cucul_get_width(qq) - 3;

  279.     yb = cucul_get_height(qq) / 2;

  280. 

  281.     xc = cucul_get_width(qq) / 3;

  282.     yc = cucul_get_height(qq) - 3;

  283. 

  284.     cucul_set_color(qq, CUCUL_COLOR_CYAN, CUCUL_COLOR_BLACK);

  285.     cucul_draw_thin_triangle(qq, xa, ya, xb, yb, xc, yc);

  286. 

  287.     xo = cucul_get_width(qq) / 2 + cos(0.027*i) * cucul_get_width(qq) / 3;

  288.     yo = cucul_get_height(qq) / 2 - sin(0.027*i) * cucul_get_height(qq) / 2;

  289. 

  290.     cucul_draw_thin_line(qq, xa, ya, xo, yo);

  291.     cucul_draw_thin_line(qq, xb, yb, xo, yo);

  292.     cucul_draw_thin_line(qq, xc, yc, xo, yo);

  293. 

  294.     /* Draw a sprite on the pyramid */

  295.     cucul_draw_sprite(qq, xo, yo, sprite, 0);

  296. 

  297.     /* Draw a trail behind the foreground sprite */

  298.     for(j = i - 60; j < i; j++)

  299.     {

  300.         int delta = cucul_rand(-5, 5);

  301.         cucul_set_color(qq, cucul_rand(0, 15), cucul_rand(0, 15));

  302.         cucul_putchar(qq, cucul_get_width(qq) / 2

  303.                     + cos(0.02*j) * (delta + cucul_get_width(qq) / 4),

  304.                    cucul_get_height(qq) / 2

  305.                     + sin(0.02*j) * (delta + cucul_get_height(qq) / 3),

  306.                    '#');

  307.     }

  308. 

  309.     /* Draw foreground sprite */

  310.     cucul_draw_sprite(qq, cucul_get_width(qq) / 2 + cos(0.02*i) * cucul_get_width(qq) / 4,

  311.                    cucul_get_height(qq) / 2 + sin(0.02*i) * cucul_get_height(qq) / 3,

  312.                    sprite, 0);

  313. }

  314. 

  315. static void demo_dots(void)

  316. {

  317.     int xmax = cucul_get_width(qq) - 1;

  318.     int ymax = cucul_get_height(qq) - 1;

  319.     int i;

  320.     static char chars[10] =

  321.     {

  322.         '+', '-', '*', '#', 'X', '@', '%', '$', 'M', 'W'

  323.     };

  324. 

  325.     for(i = 1000; i--;)

  326.     {

  327.         /* Putpixel */

  328.         cucul_set_color(qq, cucul_rand(0, 15), cucul_rand(0, 15));

  329.         cucul_putchar(qq, cucul_rand(0, xmax), cucul_rand(0, ymax),

  330.                       chars[cucul_rand(0, 9)]);

  331.     }

  332. }

  333. 

  334. static void demo_color(void)

  335. {

  336.     int i, j;

  337.     char buf[BUFSIZ];

  338. 

  339.     cucul_clear(qq);

  340.     for(i = 0; i < 16; i++)

  341.     {

  342.         sprintf(buf, "'%c': %i (%s)", 'a' + i, i, cucul_get_color_name(i));

  343.         cucul_set_color(qq, CUCUL_COLOR_LIGHTGRAY, CUCUL_COLOR_BLACK);

  344.         cucul_putstr(qq, 4, i + (i >= 8 ? 4 : 3), buf);

  345.         for(j = 0; j < 16; j++)

  346.         {

  347.             cucul_set_color(qq, i, j);

  348.             cucul_putstr(qq, (j >= 8 ? 41 : 40) + j * 2, i + (i >= 8 ? 4 : 3), "# ");

  349.         }

  350.     }

  351. }

  352. 

  353. static void demo_lines(void)

  354. {

  355.     int w = cucul_get_width(qq);

  356.     int h = cucul_get_height(qq);

  357.     int xa, ya, xb, yb;

  358. 

  359.     if(bounds)

  360.     {

  361.         xa = cucul_rand(- w, 2 * w); ya = cucul_rand(- h, 2 * h);

  362.         xb = cucul_rand(- w, 2 * w); yb = cucul_rand(- h, 2 * h);

  363.     }

  364.     else

  365.     {

  366.         xa = cucul_rand(0, w - 1); ya = cucul_rand(0, h - 1);

  367.         xb = cucul_rand(0, w - 1); yb = cucul_rand(0, h - 1);

  368.     }

  369. 

  370.     cucul_set_color(qq, cucul_rand(0, 15), CUCUL_COLOR_BLACK);

  371.     if(outline > 1)

  372.         cucul_draw_thin_line(qq, xa, ya, xb, yb);

  373.     else

  374.         cucul_draw_line(qq, xa, ya, xb, yb, '#');

  375. }

  376. 

  377. static void demo_boxes(void)

  378. {

  379.     int w = cucul_get_width(qq);

  380.     int h = cucul_get_height(qq);

  381.     int xa, ya, xb, yb;

  382. 

  383.     if(bounds)

  384.     {

  385.         xa = cucul_rand(- w, 2 * w); ya = cucul_rand(- h, 2 * h);

  386.         xb = cucul_rand(- w, 2 * w); yb = cucul_rand(- h, 2 * h);

  387.     }

  388.     else

  389.     {

  390.         xa = cucul_rand(0, w - 1); ya = cucul_rand(0, h - 1);

  391.         xb = cucul_rand(0, w - 1); yb = cucul_rand(0, h - 1);

  392.     }

  393. 

  394.     cucul_set_color(qq, cucul_rand(0, 15), cucul_rand(0, 15));

  395.     cucul_fill_box(qq, xa, ya, xb, yb, '#');

  396. 

  397.     cucul_set_color(qq, cucul_rand(0, 15), CUCUL_COLOR_BLACK);

  398.     if(outline == 2)

  399.         cucul_draw_thin_box(qq, xa, ya, xb, yb);

  400.     else if(outline == 1)

  401.         cucul_draw_box(qq, xa, ya, xb, yb, '#');

  402. }

  403. 

  404. static void demo_ellipses(void)

  405. {

  406.     int w = cucul_get_width(qq);

  407.     int h = cucul_get_height(qq);

  408.     int x, y, a, b;

  409. 

  410.     if(bounds)

  411.     {

  412.         x = cucul_rand(- w, 2 * w); y = cucul_rand(- h, 2 * h);

  413.         a = cucul_rand(0, w); b = cucul_rand(0, h);

  414.     }

  415.     else

  416.     {

  417.         do

  418.         {

  419.             x = cucul_rand(0, w); y = cucul_rand(0, h);

  420.             a = cucul_rand(0, w); b = cucul_rand(0, h);

  421. 

  422.         } while(x - a < 0 || x + a >= w || y - b < 0 || y + b >= h);

  423.     }

  424. 

  425.     cucul_set_color(qq, cucul_rand(0, 15), cucul_rand(0, 15));

  426.     cucul_fill_ellipse(qq, x, y, a, b, '#');

  427. 

  428.     cucul_set_color(qq, cucul_rand(0, 15), CUCUL_COLOR_BLACK);

  429.     if(outline == 2)

  430.         cucul_draw_thin_ellipse(qq, x, y, a, b);

  431.     else if(outline == 1)

  432.         cucul_draw_ellipse(qq, x, y, a, b, '#');

  433. }

  434. 

  435. static void demo_triangles(void)

  436. {

  437.     int w = cucul_get_width(qq);

  438.     int h = cucul_get_height(qq);

  439.     int xa, ya, xb, yb, xc, yc;

  440. 

  441.     if(bounds)

  442.     {

  443.         xa = cucul_rand(- w, 2 * w); ya = cucul_rand(- h, 2 * h);

  444.         xb = cucul_rand(- w, 2 * w); yb = cucul_rand(- h, 2 * h);

  445.         xc = cucul_rand(- w, 2 * w); yc = cucul_rand(- h, 2 * h);

  446.     }

  447.     else

  448.     {

  449. 

  450.         xa = cucul_rand(0, w - 1); ya = cucul_rand(0, h - 1);

  451.         xb = cucul_rand(0, w - 1); yb = cucul_rand(0, h - 1);

  452.         xc = cucul_rand(0, w - 1); yc = cucul_rand(0, h - 1);

  453.     }

  454. 

  455.     cucul_set_color(qq, cucul_rand(0, 15), cucul_rand(0, 15));

  456.     cucul_fill_triangle(qq, xa, ya, xb, yb, xc, yc, '#');

  457. 

  458.     cucul_set_color(qq, cucul_rand(0, 15), CUCUL_COLOR_BLACK);

  459.     if(outline == 2)

  460.         cucul_draw_thin_triangle(qq, xa, ya, xb, yb, xc, yc);

  461.     else if(outline == 1)

  462.         cucul_draw_triangle(qq, xa, ya, xb, yb, xc, yc, '#');

  463. }

  464. 

  465. static void demo_sprites(void)

  466. {

  467.     cucul_draw_sprite(qq, cucul_rand(0, cucul_get_width(qq) - 1),

  468.                    cucul_rand(0, cucul_get_height(qq) - 1), sprite, 0);

  469. }

  470. 

  471. #if 0

  472. static void demo_render(void)

  473. {

  474.     struct cucul_bitmap *bitmap;

  475.     //short buffer[256*256];

  476.     //short *dest = buffer;

  477.     int buffer[256*256];

  478.     int *dest = buffer;

  479.     int x, y, z;

  480.     static int i = 0;

  481. 

  482.     i = (i + 1) % 512;

  483.     z = i < 256 ? i : 511 - i;

  484. 

  485.     for(x = 0; x < 256; x++)

  486.         for(y = 0; y < 256; y++)

  487.     {

  488.         //*dest++ = ((x >> 3) << 11) | ((y >> 2) << 5) | ((z >> 3));

  489.         *dest++ = (x << 16) | (y << 8) | (z);

  490.     }

  491. 

  492.     //bitmap = cucul_create_bitmap(16, 256, 256, 2 * 256, 0xf800, 0x07e0, 0x001f, 0x0000);

  493.     bitmap = cucul_create_bitmap(32, 256, 256, 4 * 256, 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000);

  494.     cucul_draw_bitmap(qq, 0, 0, cucul_get_width(qq) - 1, cucul_get_height(qq) - 1,

  495.                      bitmap, buffer);

  496.     cucul_free_bitmap(qq, bitmap);

  497. }

  498. #endif

  499. 

  500. static void draw_circle(int *buffer, int xo, int yo, int r, int mask, int val);

  501. 

  502. static void demo_render(void)

  503. {

  504.     struct cucul_bitmap *bitmap;

  505.     int buffer[256*256];

  506.     int *dest;

  507.     int x, y, z, xo, yo;

  508.     static int i = 0;

  509. 

  510.     i++;

  511. 

  512.     dest = buffer;

  513.     for(x = 0; x < 256; x++)

  514.         for(y = 0; y < 256; y++)

  515.     {

  516.         *dest++ = 0xff000000;

  517.     }

  518. 

  519.     /* red */

  520.     xo = 128 + 48 * sin(0.02 * i);

  521.     yo = 128 + 48 * cos(0.03 * i);

  522.     for(z = 0; z < 240; z++)

  523.         draw_circle(buffer, xo, yo, z, 0x00ff0000, 200 << 16);

  524. 

  525.     /* green */

  526.     xo = 128 + 48 * sin(2 + 0.06 * i);

  527.     yo = 128 + 48 * cos(2 + 0.05 * i);

  528.     for(z = 0; z < 240; z++)

  529.         draw_circle(buffer, xo, yo, z, 0x0000ff00, 200 << 8);

  530. 

  531.     /* blue */

  532.     xo = 128 + 48 * sin(1 + 0.04 * i);

  533.     yo = 128 + 48 * cos(1 + 0.03 * i);

  534.     for(z = 0; z < 240; z++)

  535.         draw_circle(buffer, xo, yo, z, 0x000000ff, 200);

  536. 

  537.     bitmap = cucul_create_bitmap(qq, 32, 256, 256, 4 * 256, 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000);

  538.     cucul_draw_bitmap(qq, 0, 0, cucul_get_width(qq) - 1, cucul_get_height(qq) - 1, bitmap, (char *)buffer);

  539.     cucul_free_bitmap(qq, bitmap);

  540. }

  541. 

  542. static void draw_circle(int *buffer, int x, int y, int r, int mask, int val)

  543. {

  544.     int t, dx, dy;

  545. 

  546. #define POINT(X,Y) \

  547.     buffer[(X) + 256 * (Y)] = 0xff000000 | (buffer[(X) + 256 * (Y)] & ~mask) | val;

  548. 

  549.     for(t = 0, dx = 0, dy = r; dx <= dy; dx++)

  550.     {

  551.         POINT(x - dx / 3, y - dy / 3);

  552.         POINT(x + dx / 3, y - dy / 3);

  553.         POINT(x - dx / 3, y + dy / 3);

  554.         POINT(x + dx / 3, y + dy / 3);

  555. 

  556.         POINT(x - dy / 3, y - dx / 3);

  557.         POINT(x + dy / 3, y - dx / 3);

  558.         POINT(x - dy / 3, y + dx / 3);

  559.         POINT(x + dy / 3, y + dx / 3);

  560. 

  561.         t += t > 0 ? dx - dy-- : dx;

  562.     }

  563. }