int
GGI_svga_setdisplayframe(ggi_visual *vis, int num)
{
if (num < 0 || num >= LIBGGI_MODE(vis)->frames) {
return GGI_ENOSPACE;
}
vis->d_frame_num = num;
return(ggiSetOrigin(vis, vis->origin_x, vis->origin_y));
}
static void animate(ggi_visual_t vis, ggi_mode * mode, int j)
{
int f, w, h;
ggi_pixel *buf;
ggi_color c1, c2;
c1.r = ((sin((double) j / 100) + 1) * 32768);
c1.g = ((sin(2.094394 + (double) j / 100) + 1) * 32768);
c1.b = ((sin(4.188789 + (double) j / 100) + 1) * 32768);
c1.a = 0;
c2.r = ((sin(3.141592 + (double) j / 100) + 1) * 32768);
c2.g = ((sin(5.235986 + (double) j / 100) + 1) * 32768);
c2.b = ((sin(7.330381 + (double) j / 100) + 1) * 32768);
c2.a = 0;
ggiSetGCForeground(vis, ggiMapColor(vis, &c1));
ggiSetGCBackground(vis, ggiMapColor(vis, &c2));
w = mode->virt.x / mode->frames;
h = mode->virt.y / 5;
buf = malloc(w * h * GT_SIZE(mode->graphtype));
if (buf == NULL)
return;
ggiSetOrigin(vis, j % (mode->virt.x - mode->visible.x + 1),
j % (mode->virt.y - mode->visible.y + 1));
for (f = 0; f < mode->frames; f++) {
int x, y, yspan;
x = f * w;
yspan = mode->virt.y - h;
y = (j + (yspan * 2 * (f / mode->frames))) % (2 * yspan);
y += yspan * 2 * f / mode->frames;
y %= yspan * 2;
if (y >= yspan)
y = yspan * 2 - y;
x += (int)(sin(3.14159264 * 4 * y / yspan) + 1) * (w * 1 / 10);
ggiSetWriteFrame(vis, f);
ggiSetReadFrame(vis, (f + 1) % mode->frames);
animate_one_frame(vis, x, y, w * 4 / 5, h, buf,
(x + w * (mode->frames - 1) + w / 2) %
mode->virt.x);
}
free(buf);
}
int GGI_palemu_setorigin(struct ggi_visual *vis, int x, int y)
{
ggi_palemu_priv *priv = PALEMU_PRIV(vis);
int err;
if ((err = ggiSetOrigin(priv->parent, x, y)) != 0) {
return err;
}
vis->origin_x = x;
vis->origin_y = y;
return 0;
}
static void perf_SETORIGIN(TeleUser *u, TeleCmdSetOriginData *d)
{
/* !!! validate */
ggiSetOrigin(vis, d->x, d->y);
}