h264/dsp: split chroma_interp() by width

[nihav.git] / nihav-itu / src / codecs / h264 / dsp / mc / release.rs

diff --git a/nihav-itu/src/codecs/h264/dsp/mc/release.rs b/nihav-itu/src/codecs/h264/dsp/mc/release.rs
index 0a521d025e30fc3e2a0cc914cd2cc81bc00ab4d5..e4e7e16876a9f049ab7e2e341e31230a3d9f391b 100644 (file)
--- a/nihav-itu/src/codecs/h264/dsp/mc/release.rs
+++ b/nihav-itu/src/codecs/h264/dsp/mc/release.rs
@@ -204,7 +204,7 @@ fn h264_mc33(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, w: usiz
 }
 
 
-pub fn chroma_interp(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, dx: u16, dy: u16, w: usize, h: usize) {
+fn chroma_interp(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, dx: u16, dy: u16, w: usize, h: usize) {
     let a0 = 8 - dx;
     let a1 = dx;
     let b0 = 8 - dy;
@@ -274,6 +274,18 @@ pub fn chroma_interp(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize,
     }
 }
 
+pub fn chroma_interp_8(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, dx: u16, dy: u16, h: usize) {
+    chroma_interp(dst, dstride, src, sstride, dx, dy, 8, h);
+}
+
+pub fn chroma_interp_4(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, dx: u16, dy: u16, h: usize) {
+    chroma_interp(dst, dstride, src, sstride, dx, dy, 4, h);
+}
+
+pub fn chroma_interp_2(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, dx: u16, dy: u16, h: usize) {
+    chroma_interp(dst, dstride, src, sstride, dx, dy, 2, h);
+}
+
 macro_rules! luma_mc {
     ($orig:ident, $func4:ident, $func8:ident, $func16:ident) => {
         fn $func4(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, h: usize) {