Пример #1
0
int main(void)
{
    vga_init();

    /* Create virtual screen. */
    vbuf = malloc(VWIDTH * VHEIGHT);
    gl_setcontextvirtual(VWIDTH, VHEIGHT, 1, 8, vbuf);

    /* Set Mode X-style 320x240x256. */
    vga_setmode(G320x240x256);
    gl_setrgbpalette();
    vga_clear();

    boxes();

    demo1();

    demo2();

    vga_setmode(G320x200x256);	/* Set linear 320x200x256. */
    gl_setrgbpalette();

    demo3();

    vga_setmode(TEXT);
    exit(0);
}
Пример #2
0
void test(void)
{
    int i, j;
    unsigned char *bitmap;
    GraphicsContext *savedcontext;

    if (VIRTUAL)
	gl_setcontext(backscreen);

    gl_clearscreen(0);
    for (i = 0; i < 5; i++) {
	gl_clearscreen(0);
	for (j = 0; j < 20000; j++)
	    gl_setpixel(random() % WIDTH, random() % HEIGHT,
			random() % COLORS);
    }

    if (VIRTUAL)
	gl_copyscreen(physicalscreen);

    gl_clearscreen(0);
    for (i = 0; i < 5000; i++) {
	int x, y;
	x = random() % (WIDTH - 1);
	y = random() % (HEIGHT - 1);
	gl_fillbox(x, y, random() % (WIDTH - x), random()
		   % (HEIGHT - y), random() % COLORS);
    }

    if (VIRTUAL)
	gl_copyscreen(physicalscreen);

    gl_clearscreen(0);
    for (i = 0; i < 4000; i++)
	gl_line(random() % WIDTH, random() % HEIGHT,
		random() % WIDTH, random() % HEIGHT,
		random() % COLORS);

    if (VIRTUAL)
	gl_copyscreen(physicalscreen);

    /* Create bitmap. */
    bitmap = malloc(64 * 64 * BYTESPERPIXEL);
    /* Create temporary graphics context to create bitmap in. */
    savedcontext = gl_allocatecontext();
    gl_getcontext(savedcontext);
    gl_setcontextvirtual(64, 64, BYTESPERPIXEL, BITSPERPIXEL, bitmap);
    /* The rgb functions can be used to create nice bitmaps easily for */
    /* hicolor/truecolor modes. The 256 color 'emulated' truecolor */
    /* looks less impressive. */
    for (i = 0; i < 32; i++)
	for (j = 0; j < 32; j++) {
	    int c;
	    c = 255 - (i + j) * 4;
	    gl_setpixelrgb(31 - i, 31 - j, c, 0, 0);
	    gl_setpixelrgb(32 + i, 31 - j, c, c, 0);
	    gl_setpixelrgb(31 - i, 32 + j, c, 0, c);
	    gl_setpixelrgb(32 + i, 32 + j, c, c, c);
	}
    /* Restore previous context. */
    gl_setcontext(savedcontext);

    gl_clearscreen(0);
    for (i = 0; i < 4000; i++) {
	int x, y;
	x = random() % (WIDTH - 64 + 1);
	y = random() % (HEIGHT - 64 + 1);
	gl_putbox(x, y, 64, 64, bitmap);
    }

    free(bitmap);

    if (VIRTUAL)
	gl_copyscreen(physicalscreen);
}