+fn edge_emu_sf(src: &SimpleFrame, xpos: isize, ypos: isize, w: usize, h: usize, bw: usize, bh: usize, dst: &mut [u8], dstride: usize, comp: usize) {
+ let stride = src.stride[comp];
+ let offs = src.offset[comp];
+ let framebuf = src.data;
+
+ for y in 0..bh {
+ let srcy;
+ if (y as isize) + ypos < 0 { srcy = 0; }
+ else if (y as isize) + ypos >= (h as isize) { srcy = h - 1; }
+ else { srcy = ((y as isize) + ypos) as usize; }
+
+ for x in 0..bw {
+ let srcx;
+ if (x as isize) + xpos < 0 { srcx = 0; }
+ else if (x as isize) + xpos >= (w as isize) { srcx = w - 1; }
+ else { srcx = ((x as isize) + xpos) as usize; }
+ dst[x + y * dstride] = framebuf[offs + srcx + srcy * stride];
+ }
+ }
+}
+