cacalabs
/
libcaca
Mirror von https://github.com/cacalabs/libcaca.git
1
0
Fork 0
Code Issues 0 Releases 7 Wiki Aktivität
Du kannst nicht mehr als 25 Themen auswählen Themen müssen entweder mit einem Buchstaben oder einer Ziffer beginnen. Sie können Bindestriche („-“) enthalten und bis zu 35 Zeichen lang sein.
944 Commits
1 Branch
26 MiB
 
 
 
 
 
 
Struktur: eb1f2d77c6
Branches Tags
${ item.name }
Erstelle Branch ${ searchTerm }
von „eb1f2d77c6“
${ noResults }
libcaca/test/demo0.c

584 Zeilen
16 KiB
Originalformat Blame Verlauf 

  1. /*

  2.  *  demo          demo for libcaca version 0.9

  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 GNU Lesser General Public

  10.  *  License as published by the Free Software Foundation; either

  11.  *  version 2 of the License, or (at your option) any later version.

  12.  *

  13.  *  This program is distributed in the hope that it will be useful,

  14.  *  but WITHOUT ANY WARRANTY; without even the implied warranty of

  15.  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  16.  *  Lesser General Public License for more details.

  17.  *

  18.  *  You should have received a copy of the GNU Lesser General Public

  19.  *  License along with this program; if not, write to the Free Software

  20.  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

  21.  *  02111-1307  USA

  22.  */

  23. 

  24. #include "config.h"

  25. 

  26. #if !defined(__KERNEL__)

  27. #   include <math.h>

  28. #   include <string.h>

  29. #   include <stdio.h>

  30. #endif

  31. 

  32. #include "caca0.h"

  33. 

  34. static void display_menu(void);

  35. 

  36. static void demo_all(void);

  37. 

  38. static void demo_color(void);

  39. static void demo_dots(void);

  40. static void demo_lines(void);

  41. static void demo_boxes(void);

  42. static void demo_ellipses(void);

  43. static void demo_triangles(void);

  44. #if 0

  45. static void demo_sprites(void);

  46. #endif

  47. static void demo_render(void);

  48. 

  49. int bounds = 0;

  50. int outline = 0;

  51. int dithering = 0;

  52. struct caca_sprite *sprite = NULL;

  53. 

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

  55. {

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

  57.     int quit = 0;

  58. 

  59.     if(caca_init())

  60.         return 1;

  61. 

  62.     caca_set_delay(40000);

  63. 

  64.     /* Initialize data */

  65. #if 0

  66.     sprite = caca_load_sprite(DATADIR "/caca.txt");

  67.     if(!sprite)

  68.         sprite = caca_load_sprite("caca.txt");

  69.     if(!sprite)

  70.         sprite = caca_load_sprite("examples/caca.txt");

  71. #endif

  72. 

  73.     /* Main menu */

  74.     display_menu();

  75. 

  76.     /* Go ! */

  77.     while(!quit)

  78.     {

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

  80.         int event;

  81. 

  82.         while((event = caca_get_event(CACA_EVENT_ANY)))

  83.         {

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

  85.             {

  86.                 menu = 1;

  87.                 demo = NULL;

  88.             }

  89.             else if(event & CACA_EVENT_KEY_PRESS)

  90.             {

  91.                 switch(event & 0xffff)

  92.                 {

  93.                 case 'q':

  94.                 case 'Q':

  95.                     demo = NULL;

  96.                     quit = 1;

  97.                     break;

  98.                 case 'o':

  99.                 case 'O':

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

  101.                     display_menu();

  102.                     break;

  103.                 case 'b':

  104.                 case 'B':

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

  106.                     display_menu();

  107.                     break;

  108.                 case 'd':

  109.                 case 'D':

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

  111.                     caca_set_dithering(CACA_DITHERING_NONE + dithering);

  112.                     display_menu();

  113.                     break;

  114.                 case 'c':

  115.                     demo = demo_color;

  116.                     break;

  117.                 case 'f':

  118.                 case 'F':

  119.                     demo = demo_all;

  120.                     break;

  121.                 case '1':

  122.                     demo = demo_dots;

  123.                     break;

  124.                 case '2':

  125.                     demo = demo_lines;

  126.                     break;

  127.                 case '3':

  128.                     demo = demo_boxes;

  129.                     break;

  130.                 case '4':

  131.                     demo = demo_triangles;

  132.                     break;

  133.                 case '5':

  134.                     demo = demo_ellipses;

  135.                     break;

  136. #if 0

  137.                 case 's':

  138.                 case 'S':

  139.                     if(sprite)

  140.                         demo = demo_sprites;

  141.                     break;

  142. #endif

  143.                 case 'r':

  144.                 case 'R':

  145.                     demo = demo_render;

  146.                     break;

  147.                 }

  148. 

  149.                 if(demo)

  150.                     caca_clear();

  151.             }

  152.             else if(event & CACA_EVENT_MOUSE_MOTION)

  153.             {

  154.                 mouse = 1;

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

  156.                 ymouse = event & 0xfff;

  157.             }

  158.         }

  159. 

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

  161.         {

  162.             display_menu();

  163.             if(mouse && !demo)

  164.             {

  165.                 caca_set_color(CACA_COLOR_RED, CACA_COLOR_BLACK);

  166.                 caca_putstr(xmouse, ymouse, "|\\");

  167.             }

  168.             caca_refresh();

  169.             mouse = menu = 0;

  170.         }

  171. 

  172.         if(demo)

  173.         {

  174.             demo();

  175. 

  176.             caca_set_color(CACA_COLOR_LIGHTGRAY, CACA_COLOR_BLACK);

  177.             caca_draw_thin_box(1, 1, caca_get_width() - 2, caca_get_height() - 2);

  178.             caca_printf(4, 1, "[%i.%i fps]----",

  179.                             1000000 / caca_get_rendertime(),

  180.                             (10000000 / caca_get_rendertime()) % 10);

  181.             caca_refresh();

  182.         }

  183.     }

  184. 

  185.     /* Clean up */

  186. #if 0

  187.     caca_free_sprite(sprite);

  188. #endif

  189.     caca_end();

  190. 

  191.     return 0;

  192. }

  193. 

  194. static void display_menu(void)

  195. {

  196.     int xo = caca_get_width() - 2;

  197.     int yo = caca_get_height() - 2;

  198. 

  199.     caca_clear();

  200.     caca_set_color(CACA_COLOR_LIGHTGRAY, CACA_COLOR_BLACK);

  201.     caca_draw_thin_box(1, 1, xo, yo);

  202. 

  203.     caca_putstr((xo - strlen("libcaca demo")) / 2, 3, "libcaca demo");

  204.     caca_putstr((xo - strlen("==============")) / 2, 4, "==============");

  205. 

  206.     caca_putstr(4, 6, "demos:");

  207.     caca_putstr(4, 7, "'f': full");

  208.     caca_putstr(4, 8, "'1': dots");

  209.     caca_putstr(4, 9, "'2': lines");

  210.     caca_putstr(4, 10, "'3': boxes");

  211.     caca_putstr(4, 11, "'4': triangles");

  212.     caca_putstr(4, 12, "'5': ellipses");

  213.     caca_putstr(4, 13, "'c': colour");

  214.     caca_putstr(4, 14, "'r': render");

  215.     if(sprite)

  216.         caca_putstr(4, 15, "'s': sprites");

  217. 

  218.     caca_putstr(4, 16, "settings:");

  219.     caca_printf(4, 17, "'o': outline: %s",

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

  221.     caca_printf(4, 18, "'b': drawing boundaries: %s",

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

  223.     caca_printf(4, 19, "'d': dithering (%s)",

  224.                 caca_get_dithering_name(CACA_DITHERING_NONE + dithering));

  225. 

  226.     caca_putstr(4, yo - 2, "'q': quit");

  227.     caca_refresh();

  228. }

  229. 

  230. static void demo_all(void)

  231. {

  232.     static int i = 0;

  233. 

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

  235. 

  236.     i++;

  237. 

  238.     caca_clear();

  239. 

  240.     /* Draw the sun */

  241.     caca_set_color(CACA_COLOR_YELLOW, CACA_COLOR_BLACK);

  242.     xo = caca_get_width() / 4;

  243.     yo = caca_get_height() / 4 + 5 * sin(0.03*i);

  244. 

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

  246.     {

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

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

  249.         caca_draw_thin_line(xo, yo, xa, ya);

  250.     }

  251. 

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

  253.     caca_set_color(CACA_COLOR_WHITE, CACA_COLOR_BLACK);

  254.     caca_fill_ellipse(xo, yo, j, j / 2, '#');

  255.     caca_set_color(CACA_COLOR_YELLOW, CACA_COLOR_BLACK);

  256.     caca_draw_ellipse(xo, yo, j, j / 2, '#');

  257. 

  258.     /* Draw the pyramid */

  259.     xo = caca_get_width() * 5 / 8;

  260.     yo = 2;

  261. 

  262.     xa = caca_get_width() / 8 + sin(0.03*i) * 5;

  263.     ya = caca_get_height() / 2 + cos(0.03*i) * 5;

  264. 

  265.     xb = caca_get_width() - 10 - cos(0.02*i) * 10;

  266.     yb = caca_get_height() * 3 / 4 - 5 + sin(0.02*i) * 5;

  267. 

  268.     xc = caca_get_width() / 4 - sin(0.02*i) * 5;

  269.     yc = caca_get_height() * 3 / 4 + cos(0.02*i) * 5;

  270. 

  271.     caca_set_color(CACA_COLOR_GREEN, CACA_COLOR_BLACK);

  272.     caca_fill_triangle(xo, yo, xb, yb, xa, ya, '%');

  273.     caca_set_color(CACA_COLOR_YELLOW, CACA_COLOR_BLACK);

  274.     caca_draw_thin_triangle(xo, yo, xb, yb, xa, ya);

  275. 

  276.     caca_set_color(CACA_COLOR_RED, CACA_COLOR_BLACK);

  277.     caca_fill_triangle(xa, ya, xb, yb, xc, yc, '#');

  278.     caca_set_color(CACA_COLOR_YELLOW, CACA_COLOR_BLACK);

  279.     caca_draw_thin_triangle(xa, ya, xb, yb, xc, yc);

  280. 

  281.     caca_set_color(CACA_COLOR_BLUE, CACA_COLOR_BLACK);

  282.     caca_fill_triangle(xo, yo, xb, yb, xc, yc, '%');

  283.     caca_set_color(CACA_COLOR_YELLOW, CACA_COLOR_BLACK);

  284.     caca_draw_thin_triangle(xo, yo, xb, yb, xc, yc);

  285. 

  286.     /* Draw a background triangle */

  287.     xa = 2;

  288.     ya = 2;

  289. 

  290.     xb = caca_get_width() - 3;

  291.     yb = caca_get_height() / 2;

  292. 

  293.     xc = caca_get_width() / 3;

  294.     yc = caca_get_height() - 3;

  295. 

  296.     caca_set_color(CACA_COLOR_CYAN, CACA_COLOR_BLACK);

  297.     caca_draw_thin_triangle(xa, ya, xb, yb, xc, yc);

  298. 

  299.     xo = caca_get_width() / 2 + cos(0.027*i) * caca_get_width() / 3;

  300.     yo = caca_get_height() / 2 - sin(0.027*i) * caca_get_height() / 2;

  301. 

  302.     caca_draw_thin_line(xa, ya, xo, yo);

  303.     caca_draw_thin_line(xb, yb, xo, yo);

  304.     caca_draw_thin_line(xc, yc, xo, yo);

  305. 

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

  307. #if 0

  308.     caca_draw_sprite(xo, yo, sprite, 0);

  309. #endif

  310. 

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

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

  313.     {

  314.         int delta = caca_rand(-5, 5);

  315.         caca_set_color(caca_rand(0, 15), caca_rand(0, 15));

  316.         caca_putchar(caca_get_width() / 2

  317.                     + cos(0.02*j) * (delta + caca_get_width() / 4),

  318.                    caca_get_height() / 2

  319.                     + sin(0.02*j) * (delta + caca_get_height() / 3),

  320.                    '#');

  321.     }

  322. 

  323.     /* Draw foreground sprite */

  324. #if 0

  325.     caca_draw_sprite(caca_get_width() / 2 + cos(0.02*i) * caca_get_width() / 4,

  326.                    caca_get_height() / 2 + sin(0.02*i) * caca_get_height() / 3,

  327.                    sprite, 0);

  328. #endif

  329. }

  330. 

  331. static void demo_dots(void)

  332. {

  333.     int xmax = caca_get_width() - 1;

  334.     int ymax = caca_get_height() - 1;

  335.     int i;

  336.     static char chars[10] =

  337.     {

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

  339.     };

  340. 

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

  342.     {

  343.         /* Putpixel */

  344.         caca_set_color(caca_rand(0, 15), caca_rand(0, 15));

  345.         caca_putchar(caca_rand(0, xmax), caca_rand(0, ymax),

  346.                      chars[caca_rand(0, 9)]);

  347.     }

  348. }

  349. 

  350. static void demo_color(void)

  351. {

  352.     int i, j;

  353.     char buf[BUFSIZ];

  354. 

  355.     caca_clear();

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

  357.     {

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

  359.         caca_set_color(CACA_COLOR_LIGHTGRAY, CACA_COLOR_BLACK);

  360.         caca_putstr(4, i + (i >= 8 ? 4 : 3), buf);

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

  362.         {

  363.             caca_set_color(i, j);

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

  365.         }

  366.     }

  367. }

  368. 

  369. static void demo_lines(void)

  370. {

  371.     int w = caca_get_width();

  372.     int h = caca_get_height();

  373.     int xa, ya, xb, yb;

  374. 

  375.     if(bounds)

  376.     {

  377.         xa = caca_rand(- w, 2 * w); ya = caca_rand(- h, 2 * h);

  378.         xb = caca_rand(- w, 2 * w); yb = caca_rand(- h, 2 * h);

  379.     }

  380.     else

  381.     {

  382.         xa = caca_rand(0, w - 1); ya = caca_rand(0, h - 1);

  383.         xb = caca_rand(0, w - 1); yb = caca_rand(0, h - 1);

  384.     }

  385. 

  386.     caca_set_color(caca_rand(0, 15), CACA_COLOR_BLACK);

  387.     if(outline > 1)

  388.         caca_draw_thin_line(xa, ya, xb, yb);

  389.     else

  390.         caca_draw_line(xa, ya, xb, yb, '#');

  391. }

  392. 

  393. static void demo_boxes(void)

  394. {

  395.     int w = caca_get_width();

  396.     int h = caca_get_height();

  397.     int xa, ya, xb, yb;

  398. 

  399.     if(bounds)

  400.     {

  401.         xa = caca_rand(- w, 2 * w); ya = caca_rand(- h, 2 * h);

  402.         xb = caca_rand(- w, 2 * w); yb = caca_rand(- h, 2 * h);

  403.     }

  404.     else

  405.     {

  406.         xa = caca_rand(0, w - 1); ya = caca_rand(0, h - 1);

  407.         xb = caca_rand(0, w - 1); yb = caca_rand(0, h - 1);

  408.     }

  409. 

  410.     caca_set_color(caca_rand(0, 15), caca_rand(0, 15));

  411.     caca_fill_box(xa, ya, xb, yb, '#');

  412. 

  413.     caca_set_color(caca_rand(0, 15), CACA_COLOR_BLACK);

  414.     if(outline == 2)

  415.         caca_draw_thin_box(xa, ya, xb, yb);

  416.     else if(outline == 1)

  417.         caca_draw_box(xa, ya, xb, yb, '#');

  418. }

  419. 

  420. static void demo_ellipses(void)

  421. {

  422.     int w = caca_get_width();

  423.     int h = caca_get_height();

  424.     int x, y, a, b;

  425. 

  426.     if(bounds)

  427.     {

  428.         x = caca_rand(- w, 2 * w); y = caca_rand(- h, 2 * h);

  429.         a = caca_rand(0, w); b = caca_rand(0, h);

  430.     }

  431.     else

  432.     {

  433.         do

  434.         {

  435.             x = caca_rand(0, w); y = caca_rand(0, h);

  436.             a = caca_rand(0, w); b = caca_rand(0, h);

  437. 

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

  439.     }

  440. 

  441.     caca_set_color(caca_rand(0, 15), caca_rand(0, 15));

  442.     caca_fill_ellipse(x, y, a, b, '#');

  443. 

  444.     caca_set_color(caca_rand(0, 15), CACA_COLOR_BLACK);

  445.     if(outline == 2)

  446.         caca_draw_thin_ellipse(x, y, a, b);

  447.     else if(outline == 1)

  448.         caca_draw_ellipse(x, y, a, b, '#');

  449. }

  450. 

  451. static void demo_triangles(void)

  452. {

  453.     int w = caca_get_width();

  454.     int h = caca_get_height();

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

  456. 

  457.     if(bounds)

  458.     {

  459.         xa = caca_rand(- w, 2 * w); ya = caca_rand(- h, 2 * h);

  460.         xb = caca_rand(- w, 2 * w); yb = caca_rand(- h, 2 * h);

  461.         xc = caca_rand(- w, 2 * w); yc = caca_rand(- h, 2 * h);

  462.     }

  463.     else

  464.     {

  465. 

  466.         xa = caca_rand(0, w - 1); ya = caca_rand(0, h - 1);

  467.         xb = caca_rand(0, w - 1); yb = caca_rand(0, h - 1);

  468.         xc = caca_rand(0, w - 1); yc = caca_rand(0, h - 1);

  469.     }

  470. 

  471.     caca_set_color(caca_rand(0, 15), caca_rand(0, 15));

  472.     caca_fill_triangle(xa, ya, xb, yb, xc, yc, '#');

  473. 

  474.     caca_set_color(caca_rand(0, 15), CACA_COLOR_BLACK);

  475.     if(outline == 2)

  476.         caca_draw_thin_triangle(xa, ya, xb, yb, xc, yc);

  477.     else if(outline == 1)

  478.         caca_draw_triangle(xa, ya, xb, yb, xc, yc, '#');

  479. }

  480. 

  481. #if 0

  482. static void demo_sprites(void)

  483. {

  484.     caca_draw_sprite(caca_rand(0, caca_get_width() - 1),

  485.                    caca_rand(0, caca_get_height() - 1), sprite, 0);

  486. }

  487. #endif

  488. 

  489. #if 0

  490. static void demo_render(void)

  491. {

  492.     struct caca_bitmap *bitmap;

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

  494.     //short *dest = buffer;

  495.     int buffer[256*256];

  496.     int *dest = buffer;

  497.     int x, y, z;

  498.     static int i = 0;

  499. 

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

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

  502. 

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

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

  505.     {

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

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

  508.     }

  509. 

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

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

  512.     caca_draw_bitmap(0, 0, caca_get_width() - 1, caca_get_height() - 1,

  513.                      bitmap, buffer);

  514.     caca_free_bitmap(bitmap);

  515. }

  516. #endif

  517. 

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

  519. 

  520. static void demo_render(void)

  521. {

  522.     struct caca_bitmap *bitmap;

  523.     int buffer[256*256];

  524.     int *dest;

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

  526.     static int i = 0;

  527. 

  528.     i++;

  529. 

  530.     dest = buffer;

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

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

  533.     {

  534.         *dest++ = 0xff000000;

  535.     }

  536. 

  537.     /* red */

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

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

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

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

  542. 

  543.     /* green */

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

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

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

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

  548. 

  549.     /* blue */

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

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

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

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

  554. 

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

  556.     caca_draw_bitmap(0, 0, caca_get_width() - 1, caca_get_height() - 1,

  557.                      bitmap, (char *)buffer);

  558.     caca_free_bitmap(bitmap);

  559. }

  560. 

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

  562. {

  563.     int t, dx, dy;

  564. 

  565. #define POINT(X,Y) \

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

  567. 

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

  569.     {

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

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

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

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

  574. 

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

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

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

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

  579. 

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

  581.     }

  582. }