Example #1
0
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;
}
Example #2
0
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);
}