Initial. Don't... just don't ask.

2011-02-24 00:22:00 -08:00 · 2011-02-24 00:22:00 -08:00 · 00bae13bba
commit 00bae13bba
586 changed files with 129057 additions and 0 deletions
--- a/demos/forktest.c
+++ b/demos/forktest.c
@ -0,0 +1,164 @@
+/* Program to test the svgalib keyboard functions. */
+/* and stress vga_safety_fork() */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <signal.h>
+#include <string.h>
+#include <time.h>
+#include <vga.h>
+#include <vgagl.h>
+#include <vgakeyboard.h>
+
+#define zero_sa_mask(maskptr) memset(maskptr, 0, sizeof(sigset_t))
+
+static char sig2release[] =
+{SIGHUP, SIGINT, SIGQUIT, SIGILL,
+ SIGTRAP, SIGIOT, SIGBUS, SIGFPE,
+ SIGSEGV, SIGPIPE, SIGALRM, SIGTERM,
+ SIGXCPU, SIGXFSZ, SIGVTALRM,
+ SIGPROF, SIGPWR};
+
+
+static int newcolor(void)
+{
+    if (BYTESPERPIXEL == 1)
+	return random() % 15 + 1;
+    return gl_rgbcolor(random() & 255, random() & 255, random() & 255);
+}
+
+
+static void timeout(int sig)
+{
+    keyboard_close();
+    vga_setmode(TEXT);
+    puts("Automatic termination after 60 seconds.");
+    exit(1);
+}
+
+void shutdown(void)
+{
+    puts("Shutdown called!");
+}
+
+int main(void)
+{
+    struct sigaction siga;
+    int vgamode, color, leftpressed;
+    int x, y;
+
+    printf("\nWARNING: This program will set the keyboard to RAW mode.\n"
+	   "The keyboard routines in svgalib have not been tested\n"
+	   "very much. There may be no recovery if something goes\n"
+	   "wrong.\n\n"
+	   "Press ctrl-c now to bail out, enter to continue.\n"
+	   "In the test itself, use 'q' or Escape to quit.\n"
+	   "It will also terminate after 60 seconds.\n"
+    "Use any cursor keys to move, keypad 0 or enter to change color.\n\n"
+    "\aWARNING, this version of keytest explicitly removes all svgalib\n"
+      "automatic restore funcs, s.t. when you kill it from the outside\n"
+    "only vga_safety_fork() can rescue you. Use this svgalib test tool\n"
+	   "with EXTREME! care.\n"
+	);
+
+    getchar();
+
+    vga_safety_fork(shutdown);	/* Does already enter a videomode */
+
+    vga_init();
+
+    /* Never do this in your code! */
+    siga.sa_flags = 0;
+    zero_sa_mask(&(siga.sa_mask));
+    for (x = 0; x < sizeof(sig2release); x++) {
+	siga.sa_handler = SIG_DFL;
+	sigaction(sig2release[x], &siga, NULL);
+    }
+
+    vgamode = vga_getdefaultmode();
+    if ((vgamode == -1) || (vga_getmodeinfo(vgamode)->bytesperpixel != 1))
+	vgamode = G320x200x256;
+
+    if (!vga_hasmode(vgamode)) {
+	printf("Mode not available.\n");
+	exit(1);
+    }
+    vga_setmode(vgamode);
+    gl_setcontextvga(vgamode);
+    gl_enableclipping();
+
+    signal(SIGALRM, timeout);
+
+    /* This installs the default handler, which is good enough for most */
+    /* purposes. */
+    if (keyboard_init()) {
+	printf("Could not initialize keyboard.\n");
+	exit(1);
+    }
+    /* Translate to 4 keypad cursor keys, and unify enter key. */
+    keyboard_translatekeys(TRANSLATE_CURSORKEYS | TRANSLATE_KEYPADENTER |
+			   TRANSLATE_DIAGONAL);
+    /* (TRANSLATE_DIAGONAL seems to give problems.) Michael: No doesn't...
+       but might not do what you expect.. */
+
+    alarm(60);			/* Terminate after 60 seconds for safety. */
+
+    x = WIDTH / 2;
+    y = HEIGHT / 2;
+    color = newcolor();
+    leftpressed = 0;
+    for (;;) {
+	/* Draw moving box. */
+	gl_fillbox(x, y, 5, 5, color);
+
+	/* Draw key status bar at top of screen. */
+	gl_putbox(0, 0, 128, 1, keyboard_getstate());
+
+	/* Wait about 1/100th of a second. */
+	/* Note that use of this function makes things less */
+	/* smooth because of timer latency. */
+	usleep(10000);
+
+	keyboard_update();
+
+	/* Move. */
+	if (keyboard_keypressed(SCANCODE_CURSORLEFT))
+	    x--;
+	if (keyboard_keypressed(SCANCODE_CURSORRIGHT))
+	    x++;
+	if (keyboard_keypressed(SCANCODE_CURSORUP))
+	    y--;
+	if (keyboard_keypressed(SCANCODE_CURSORDOWN))
+	    y++;
+
+	/* Boundary checks. */
+	if (x < 0)
+	    x = 0;
+	if (x >= WIDTH)
+	    x = WIDTH - 1;
+	if (y < 1)
+	    y = 1;
+	if (y >= HEIGHT)
+	    y = HEIGHT - 1;
+
+	/* Check for color change. */
+	if (keyboard_keypressed(SCANCODE_KEYPAD0) ||
+	    keyboard_keypressed(SCANCODE_ENTER)) {
+	    if (!leftpressed) {
+		color = newcolor();
+		leftpressed = 1;
+	    }
+	} else
+	    leftpressed = 0;
+
+	if (keyboard_keypressed(SCANCODE_Q) ||
+	    keyboard_keypressed(SCANCODE_ESCAPE))
+	    break;
+    }
+
+    keyboard_close();		/* Don't forget this! */
+
+    vga_setmode(TEXT);
+    exit(0);
+}