early-access version 1432

externals/ffmpeg/libavcodec/aarch64/pixblockdsp_neon.S

@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2020 Martin Storsjo
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/aarch64/asm.S"
+
+function ff_get_pixels_neon, export=1
+        mov             w3,  #8
+1:
+        ld1             {v0.8b}, [x1], x2
+        subs            w3,  w3,  #2
+        ld1             {v1.8b}, [x1], x2
+        uxtl            v0.8h,   v0.8b
+        uxtl            v1.8h,   v1.8b
+        st1             {v0.8h, v1.8h}, [x0], #32
+        b.gt            1b
+
+        ret
+endfunc
+
+function ff_diff_pixels_neon, export=1
+        mov             w4,  #8
+1:
+        ld1             {v0.8b}, [x1], x3
+        ld1             {v1.8b}, [x2], x3
+        subs            w4,  w4,  #2
+        ld1             {v2.8b}, [x1], x3
+        usubl           v0.8h,   v0.8b,   v1.8b
+        ld1             {v3.8b}, [x2], x3
+        usubl           v1.8h,   v2.8b,   v3.8b
+        st1             {v0.8h, v1.8h}, [x0], #32
+        b.gt            1b
+
+        ret
+endfunc