X-Git-Url: https://git.nihav.org/?a=blobdiff_plain;f=nihav-itu%2Fsrc%2Fcodecs%2Fh264%2Fdsp%2Frelease.rs;fp=nihav-itu%2Fsrc%2Fcodecs%2Fh264%2Fdsp%2Frelease.rs;h=87b1bc5efe7a2920b042879c05933968b0b2c088;hb=999fbb839c077549a29cb84db47a0b0b65a2c0ef;hp=0000000000000000000000000000000000000000;hpb=14833a644657637b06a511e4bf6db0ec9ba0ad12;p=nihav.git

diff --git a/nihav-itu/src/codecs/h264/dsp/release.rs b/nihav-itu/src/codecs/h264/dsp/release.rs
new file mode 100644
index 0000000..87b1bc5
--- /dev/null
+++ b/nihav-itu/src/codecs/h264/dsp/release.rs
@@ -0,0 +1,284 @@
+use nihav_codec_support::codecs::blockdsp::*;
+
+use super::clip_u8;
+
+const TMP_BUF_STRIDE: usize = 32;
+
+fn interp_block1(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, w: usize, h: usize, hor: bool, avg0: bool) {
+    unsafe {
+        let step = if hor { 1 } else { sstride };
+        let avgidx = if avg0 { step * 2 } else { step * 3 };
+        let mut src = src.as_ptr();
+        let mut dst = dst.as_mut_ptr();
+        for _ in 0..h {
+            for _ in 0..w {
+                let t = clip_u8((       i16::from(*src)
+                                 - 5  * i16::from(*src.add(step))
+                                 + 20 * i16::from(*src.add(step * 2))
+                                 + 20 * i16::from(*src.add(step * 3))
+                                 - 5  * i16::from(*src.add(step * 4))
+                                 +      i16::from(*src.add(step * 5))
+                                 + 16) >> 5);
+                *dst = ((u16::from(t) + u16::from(*src.add(avgidx)) + 1) >> 1) as u8;
+                src = src.add(1);
+                dst = dst.add(1);
+            }
+            dst = dst.sub(w).add(dstride);
+            src = src.sub(w).add(sstride);
+        }
+    }
+}
+
+fn interp_block2(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, w: usize, h: usize, hor: bool) {
+    unsafe {
+        let step = if hor { 1 } else { sstride };
+        let mut pix = dst.as_mut_ptr();
+        let mut src = src.as_ptr();
+        for _ in 0..h {
+            for x in 0..w {
+                *pix.add(x) = clip_u8((       i16::from(*src)
+                                       - 5  * i16::from(*src.add(step))
+                                       + 20 * i16::from(*src.add(step * 2))
+                                       + 20 * i16::from(*src.add(step * 3))
+                                       - 5  * i16::from(*src.add(step * 4))
+                                       +      i16::from(*src.add(step * 5))
+                                       + 16) >> 5);
+                src = src.add(1);
+            }
+            pix = pix.add(dstride);
+            src = src.sub(w);
+            src = src.add(sstride);
+        }
+    }
+}
+
+fn mc_avg_tmp(dst: &mut [u8], dstride: usize, w: usize, h: usize, tmp: &[u8], tmp2: &[u8]) {
+    unsafe {
+        let mut src1 = tmp.as_ptr();
+        let mut src2 = tmp2.as_ptr();
+        let mut dst = dst.as_mut_ptr();
+        for _ in 0..h {
+            for x in 0..w {
+                let a = *src1.add(x);
+                let b = *src2.add(x);
+                *dst.add(x) = ((u16::from(a) + u16::from(b) + 1) >> 1) as u8;
+            }
+            dst = dst.add(dstride);
+            src1 = src1.add(TMP_BUF_STRIDE);
+            src2 = src2.add(TMP_BUF_STRIDE);
+        }
+    }
+}
+
+fn h264_mc00(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, w: usize, h: usize) {
+    unsafe {
+        let mut src = src.as_ptr();
+        let mut dst = dst.as_mut_ptr();
+        for _ in 0..h {
+            std::ptr::copy_nonoverlapping(src, dst, w);
+            src = src.add(sstride);
+            dst = dst.add(dstride);
+        }
+    }
+}
+
+fn h264_mc01(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, w: usize, h: usize) {
+    interp_block1(dst, dstride, &src[sstride * 2..], sstride, w, h, true, true);
+}
+
+fn h264_mc02(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, w: usize, h: usize) {
+    interp_block2(dst, dstride, &src[sstride * 2..], sstride, w, h, true);
+}
+
+fn h264_mc03(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, w: usize, h: usize) {
+    interp_block1(dst, dstride, &src[sstride * 2..], sstride, w, h, true, false);
+}
+
+fn h264_mc10(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, w: usize, h: usize) {
+    interp_block1(dst, dstride, &src[2..], sstride, w, h, false, true);
+}
+
+fn h264_mc11(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, w: usize, h: usize) {
+    let mut tmp : [u8; TMP_BUF_STRIDE * 16] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
+    let mut tmp2: [u8; TMP_BUF_STRIDE * 16] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
+    h264_mc02(&mut tmp,  TMP_BUF_STRIDE, src, sstride, w, h);
+    h264_mc20(&mut tmp2, TMP_BUF_STRIDE, src, sstride, w, h);
+    mc_avg_tmp(dst, dstride, w, h, &tmp, &tmp2);
+}
+
+fn h264_mc12(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, w: usize, h: usize) {
+    let mut tmp : [u8; TMP_BUF_STRIDE * 16] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
+    let mut tmp2: [u8; TMP_BUF_STRIDE * 16] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
+    h264_mc02(&mut tmp,  TMP_BUF_STRIDE, src, sstride, w, h);
+    h264_mc22(&mut tmp2, TMP_BUF_STRIDE, src, sstride, w, h);
+    mc_avg_tmp(dst, dstride, w, h, &tmp, &tmp2);
+}
+
+fn h264_mc13(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, w: usize, h: usize) {
+    let mut tmp : [u8; TMP_BUF_STRIDE * 16] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
+    let mut tmp2: [u8; TMP_BUF_STRIDE * 16] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
+    h264_mc02(&mut tmp,  TMP_BUF_STRIDE, src, sstride, w, h);
+    h264_mc20(&mut tmp2, TMP_BUF_STRIDE, &src[1..], sstride, w, h);
+    mc_avg_tmp(dst, dstride, w, h, &tmp, &tmp2);
+}
+
+fn h264_mc20(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, w: usize, h: usize) {
+    interp_block2(dst, dstride, &src[2..], sstride, w, h, false);
+}
+
+fn h264_mc21(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, w: usize, h: usize) {
+    let mut tmp : [u8; TMP_BUF_STRIDE * 16] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
+    let mut tmp2: [u8; TMP_BUF_STRIDE * 16] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
+    h264_mc22(&mut tmp,  TMP_BUF_STRIDE, src, sstride, w, h);
+    h264_mc20(&mut tmp2, TMP_BUF_STRIDE, src, sstride, w, h);
+    mc_avg_tmp(dst, dstride, w, h, &tmp, &tmp2);
+}
+
+fn h264_mc22(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, w: usize, h: usize) {
+    let mut tmp: [i32; TMP_BUF_STRIDE * 16] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
+    unsafe {
+        let mut src = src.as_ptr();
+        let mut dst = tmp.as_mut_ptr();
+        for _ in 0..h {
+            for _ in 0..w+5 {
+                *dst =        i32::from(*src)
+                       - 5  * i32::from(*src.add(sstride))
+                       + 20 * i32::from(*src.add(sstride * 2))
+                       + 20 * i32::from(*src.add(sstride * 3))
+                       - 5  * i32::from(*src.add(sstride * 4))
+                       +      i32::from(*src.add(sstride * 5));
+                dst = dst.add(1);
+                src = src.add(1);
+            }
+            src = src.sub(w+5).add(sstride);
+            dst = dst.sub(w+5).add(TMP_BUF_STRIDE);
+        }
+    }
+    unsafe {
+        let mut dst = dst.as_mut_ptr();
+        let mut src = tmp.as_ptr();
+        for _ in 0..h {
+            for _ in 0..w {
+                *dst = clip_u8(((*src - 5 * *src.add(1) + 20 * *src.add(2) + 20 * *src.add(3) - 5 * *src.add(4) + *src.add(5) + 512) >> 10) as i16);
+                dst = dst.add(1);
+                src = src.add(1);
+            }
+            dst = dst.sub(w).add(dstride);
+            src = src.sub(w).add(TMP_BUF_STRIDE);
+        }
+    }
+}
+
+fn h264_mc23(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, w: usize, h: usize) {
+    let mut tmp : [u8; TMP_BUF_STRIDE * 16] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
+    let mut tmp2: [u8; TMP_BUF_STRIDE * 16] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
+    h264_mc22(&mut tmp,  TMP_BUF_STRIDE, src, sstride, w, h);
+    h264_mc20(&mut tmp2, TMP_BUF_STRIDE, &src[1..], sstride, w, h);
+    mc_avg_tmp(dst, dstride, w, h, &tmp, &tmp2);
+}
+
+fn h264_mc30(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, w: usize, h: usize) {
+    interp_block1(dst, dstride, &src[2..], sstride, w, h, false, false);
+}
+
+fn h264_mc31(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, w: usize, h: usize) {
+    let mut tmp : [u8; TMP_BUF_STRIDE * 16] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
+    let mut tmp2: [u8; TMP_BUF_STRIDE * 16] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
+    h264_mc20(&mut tmp,  TMP_BUF_STRIDE, src, sstride, w, h);
+    h264_mc02(&mut tmp2, TMP_BUF_STRIDE, &src[sstride..], sstride, w, h);
+    mc_avg_tmp(dst, dstride, w, h, &tmp, &tmp2);
+}
+
+fn h264_mc32(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, w: usize, h: usize) {
+    let mut tmp : [u8; TMP_BUF_STRIDE * 16] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
+    let mut tmp2: [u8; TMP_BUF_STRIDE * 16] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
+    h264_mc22(&mut tmp,  TMP_BUF_STRIDE, src, sstride, w, h);
+    h264_mc02(&mut tmp2, TMP_BUF_STRIDE, &src[sstride..], sstride, w, h);
+    mc_avg_tmp(dst, dstride, w, h, &tmp, &tmp2);
+}
+
+fn h264_mc33(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, w: usize, h: usize) {
+    let mut tmp : [u8; TMP_BUF_STRIDE * 16] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
+    let mut tmp2: [u8; TMP_BUF_STRIDE * 16] = unsafe { std::mem::MaybeUninit::uninit().assume_init() };
+    h264_mc20(&mut tmp,  TMP_BUF_STRIDE, &src[1..], sstride, w, h);
+    h264_mc02(&mut tmp2, TMP_BUF_STRIDE, &src[sstride..], sstride, w, h);
+    mc_avg_tmp(dst, dstride, w, h, &tmp, &tmp2);
+}
+
+
+pub 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;
+    let b1 = dy;
+
+    if a0 == 8 && b0 == 8 {
+        unsafe {
+            let mut src = src.as_ptr();
+            let mut dst = dst.as_mut_ptr();
+            for _ in 0..h {
+                std::ptr::copy_nonoverlapping(src, dst, w);
+                src = src.add(sstride);
+                dst = dst.add(dstride);
+            }
+        }
+    } else if a0 == 8 {
+        unsafe {
+            let mut src0 = src.as_ptr();
+            let mut src1 = src0.add(sstride);
+            let mut dst = dst.as_mut_ptr();
+            for _ in 0..h {
+                for x in 0..w {
+                    let a = *src0.add(x);
+                    let b = *src1.add(x);
+                    *dst.add(x) = ((u16::from(a) * b0 + u16::from(b) * b1 + 4) >> 3) as u8;
+                }
+                src0 = src0.add(sstride);
+                src1 = src1.add(sstride);
+                dst = dst.add(dstride);
+            }
+        }
+    } else if b0 == 8 {
+        unsafe {
+            let mut src = src.as_ptr();
+            let mut dst = dst.as_mut_ptr();
+            for _ in 0..h {
+                let mut a = *src;
+                for x in 0..w {
+                    let b = *src.add(x + 1);
+                    *dst.add(x) = ((u16::from(a) * a0 + u16::from(b) * a1 + 4) >> 3) as u8;
+                    a = b;
+                }
+                src = src.add(sstride);
+                dst = dst.add(dstride);
+            }
+        }
+    } else {
+        unsafe {
+            let mut src0 = src.as_ptr();
+            let mut src1 = src0.add(sstride);
+            let mut dst = dst.as_mut_ptr();
+            for _ in 0..h {
+                let mut a = *src0;
+                let mut c = *src1;
+                for x in 0..w {
+                    let b = *src0.add(x + 1);
+                    let d = *src1.add(x + 1);
+                    *dst.add(x) = ((u16::from(a) * a0 * b0 + u16::from(b) * a1 * b0 + u16::from(c) * a0 * b1 + u16::from(d) * a1 * b1 + 0x20) >> 6) as u8;
+                    a = b;
+                    c = d;
+                }
+                src0 = src0.add(sstride);
+                src1 = src1.add(sstride);
+                dst = dst.add(dstride);
+            }
+        }
+    }
+}
+
+pub const H264_LUMA_INTERP: &[BlkInterpFunc] = &[
+    h264_mc00, h264_mc01, h264_mc02, h264_mc03,
+    h264_mc10, h264_mc11, h264_mc12, h264_mc13,
+    h264_mc20, h264_mc21, h264_mc22, h264_mc23,
+    h264_mc30, h264_mc31, h264_mc32, h264_mc33
+];