int
GGI_t16_getpixel_nc(struct ggi_visual *vis, int x, int y, ggi_pixel *pixel)
{
*pixel = *PIXEL_RADDR(vis, x, y);
return 0;
}
int
GGI_lin1r_getpixel_nc(struct ggi_visual *vis, int x, int y, ggi_pixel *pixel)
{
*pixel = !! (*PIXEL_RADDR(vis,x,y) & (0x01 << (x & 7)));
return 0;
}
int GGI_t32_getpixela(ggi_visual *vis, int x, int y, ggi_pixel *pixel)
{
PREPARE_FB(vis);
*pixel = *PIXEL_RADDR(vis, x, y);
return 0;
}
int
GGI_t16_getpixel_nca(struct ggi_visual *vis, int x, int y, ggi_pixel *pixel)
{
PREPARE_FB(vis);
*pixel = *PIXEL_RADDR(vis, x, y);
return 0;
}
int
GGI_ipl2_getpixel_nc(struct ggi_visual *vis, int x, int y, ggi_pixel *pixel)
{
ggi_pixel col = 0;
uint16_t *dest = PIXEL_RADDR(vis, x, y);
uint16_t shift = 15 - (x & 15);
int i, depth = GT_DEPTH(LIBGGI_GT(vis));
for (i=0; i < depth; i++) {
col |= ((*dest++ >> shift) & 1) << i;
}
*pixel = col;
return 0;
}
int GGI_ilbm_getpixel(ggi_visual *vis, int x, int y, ggi_pixel *pixel)
{
ggi_pixel col = 0;
uint16_t *dest = PIXEL_RADDR(vis, x, y);
uint16_t shift = 15 - (x & 15);
int plane_add = LIBGGI_R_PLAN(vis).next_plane / 2;
int i, depth = GT_DEPTH(LIBGGI_GT(vis));
for (i=0; i < depth; i++) {
col |= ((*dest >> shift) & 1) << i;
dest += plane_add;
}
*pixel = col;
return 0;
}
