Felisp
84436a5ae0
http://my.svgalib.org/svgalib/svgalib-1.9.25.tar.gz http://my.svgalib.org/svgalib/
130 lines
3.1 KiB
C
130 lines
3.1 KiB
C
/* Program to test the svgalib keyboard functions. */
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <signal.h>
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#include <time.h>
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#include <vga.h>
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#include <vgagl.h>
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#include <vgakeyboard.h>
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static int newcolor(void)
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{
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if (BYTESPERPIXEL == 1)
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return random() % 15 + 1;
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return gl_rgbcolor(random() & 255, random() & 255, random() & 255);
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}
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static void timeout(int sig)
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{
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keyboard_close();
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vga_setmode(TEXT);
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puts("Automatic termination after 60 seconds.");
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exit(1);
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}
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int main(void)
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{
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int vgamode, color, leftpressed;
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int x, y;
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vga_init();
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vgamode = vga_getdefaultmode();
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if ((vgamode == -1) || (vga_getmodeinfo(vgamode)->bytesperpixel != 1))
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vgamode = G320x200x256;
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if (!vga_hasmode(vgamode)) {
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printf("Mode not available.\n");
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exit(1);
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}
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printf("\nWARNING: This program will set the keyboard to RAW mode.\n"
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"The keyboard routines in svgalib have not been tested\n"
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"very much. There may be no recovery if something goes\n"
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"wrong.\n\n"
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"Press ctrl-c now to bail out, enter to continue.\n"
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"In the test itself, use 'q' or Escape to quit.\n"
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"It will also terminate after 60 seconds.\n"
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"Use any cursor keys to move, keypad 0 or enter to change color.\n");
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getchar();
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vga_setmode(vgamode);
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gl_setcontextvga(vgamode);
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gl_enableclipping();
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signal(SIGALRM, timeout);
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/* This installs the default handler, which is good enough for most */
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/* purposes. */
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if (keyboard_init()) {
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printf("Could not initialize keyboard.\n");
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exit(1);
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}
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/* Translate to 4 keypad cursor keys, and unify enter key. */
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keyboard_translatekeys(TRANSLATE_CURSORKEYS | TRANSLATE_KEYPADENTER |
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TRANSLATE_DIAGONAL);
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/* (TRANSLATE_DIAGONAL seems to give problems.) Michael: No doesn't...
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but might not do what you expect.. */
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alarm(60); /* Terminate after 60 seconds for safety. */
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x = WIDTH / 2;
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y = HEIGHT / 2;
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color = newcolor();
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leftpressed = 0;
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for (;;) {
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/* Draw moving box. */
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gl_fillbox(x, y, 5, 5, color);
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/* Draw key status bar at top of screen. */
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gl_putbox(0, 0, 128, 1, keyboard_getstate());
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/* Wait about 1/100th of a second. */
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/* Note that use of this function makes things less */
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/* smooth because of timer latency. */
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usleep(10000);
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keyboard_update();
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/* Move. */
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if (keyboard_keypressed(SCANCODE_CURSORLEFT))
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x--;
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if (keyboard_keypressed(SCANCODE_CURSORRIGHT))
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x++;
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if (keyboard_keypressed(SCANCODE_CURSORUP))
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y--;
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if (keyboard_keypressed(SCANCODE_CURSORDOWN))
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y++;
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/* Boundary checks. */
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if (x < 0)
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x = 0;
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if (x >= WIDTH)
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x = WIDTH - 1;
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if (y < 1)
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y = 1;
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if (y >= HEIGHT)
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y = HEIGHT - 1;
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/* Check for color change. */
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if (keyboard_keypressed(SCANCODE_KEYPAD0) ||
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keyboard_keypressed(SCANCODE_ENTER)) {
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if (!leftpressed) {
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color = newcolor();
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leftpressed = 1;
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}
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} else
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leftpressed = 0;
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if (keyboard_keypressed(SCANCODE_Q) ||
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keyboard_keypressed(SCANCODE_ESCAPE))
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break;
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}
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keyboard_close(); /* Don't forget this! */
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vga_setmode(TEXT);
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exit(0);
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}
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