void Super2xSaI(ALLEGRO_BITMAP * src, ALLEGRO_BITMAP * dest, int s_x, int s_y, int d_x, int d_y, int w, int h)
{
int sbpp, dbpp;
ALLEGRO_BITMAP *dst2 = NULL;
if (!src || !dest)
return;
sbpp = bitmap_color_depth(src);
dbpp = bitmap_color_depth(dest);
if ((sbpp != xsai_depth) || (sbpp != dbpp)) /* Must be same color depth */
return;
BLIT_CLIP2(src, dest, s_x, s_y, d_x, d_y, w, h, 2, 2);
if (w < 4 || h < 4) { /* Image is too small to be 2xSaI'ed. */
stretch_blit(src, dest, s_x, s_y, w, h, d_x, d_y, w * 2, h * 2);
return;
}
sbpp = BYTES_PER_PIXEL(sbpp);
if (d_x || d_y)
dst2 = create_sub_bitmap(dest, d_x, d_y, w * 2, h * 2);
Super2xSaI_ex(src->line[s_y] + s_x * sbpp, (unsigned int)(src->line[1] - src->line[0]), NULL, dst2 ? dst2 : dest, w, h);
if (dst2)
destroy_bitmap(dst2);
return;
}
static int put_image(struct vf_instance_s* vf, mp_image_t *mpi, double pts){
mp_image_t *dmpi;
// hope we'll get DR buffer:
dmpi=vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
2*mpi->w, 2*mpi->h);
Super2xSaI_ex(mpi->planes[0], mpi->stride[0],
dmpi->planes[0], dmpi->stride[0],
mpi->w, mpi->h, mpi->bpp/8);
return vf_next_put_image(vf,dmpi, pts);
}