[FFmpeg-devel] [PATCH 5/7] lavc/vp9dsp: R-V V mc tap v

[flow gg <hlefthleft@gmail.com>]

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From 94aacf6d1d49cc009669f89c91db71038a13285d Mon Sep 17 00:00:00 2001
From: sunyuechi <sunyuechi@iscas.ac.cn>
Date: Thu, 21 Mar 2024 23:08:01 +0800
Subject: [PATCH 5/7] lavc/vp9dsp: R-V V mc tap v

C908:
vp9_avg_8tap_smooth_4v_8bpp_c: 13.7
vp9_avg_8tap_smooth_4v_8bpp_rvv_i64: 5.0
vp9_avg_8tap_smooth_8v_8bpp_c: 49.7
vp9_avg_8tap_smooth_8v_8bpp_rvv_i64: 9.2
vp9_avg_8tap_smooth_16v_8bpp_c: 191.5
vp9_avg_8tap_smooth_16v_8bpp_rvv_i64: 21.2
vp9_avg_8tap_smooth_32v_8bpp_c: 770.5
vp9_avg_8tap_smooth_32v_8bpp_rvv_i64: 66.0
vp9_avg_8tap_smooth_64v_8bpp_c: 3068.0
vp9_avg_8tap_smooth_64v_8bpp_rvv_i64: 262.5
vp9_put_8tap_smooth_4v_8bpp_c: 12.0
vp9_put_8tap_smooth_4v_8bpp_rvv_i64: 4.5
vp9_put_8tap_smooth_8v_8bpp_c: 43.7
vp9_put_8tap_smooth_8v_8bpp_rvv_i64: 8.5
vp9_put_8tap_smooth_16v_8bpp_c: 168.7
vp9_put_8tap_smooth_16v_8bpp_rvv_i64: 20.0
vp9_put_8tap_smooth_32v_8bpp_c: 681.5
vp9_put_8tap_smooth_32v_8bpp_rvv_i64: 63.7
vp9_put_8tap_smooth_64v_8bpp_c: 2692.7
vp9_put_8tap_smooth_64v_8bpp_rvv_i64: 253.5
---
 libavcodec/riscv/vp9_mc_rvv.S  | 32 +++++++++++++++++++++++++++++++-
 libavcodec/riscv/vp9dsp_init.c |  3 ++-
 2 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/libavcodec/riscv/vp9_mc_rvv.S b/libavcodec/riscv/vp9_mc_rvv.S
index 9458a2e82b..2d4b56516f 100644
--- a/libavcodec/riscv/vp9_mc_rvv.S
+++ b/libavcodec/riscv/vp9_mc_rvv.S
@@ -221,7 +221,11 @@ subpel_filters_smooth:
 .macro epel_filter name type regtype
         lla             \regtype\()2, subpel_filters_\name
         li              \regtype\()1, 8
+.ifc \type,v
+        mul             \regtype\()0, a6, \regtype\()1
+.elseif \type == h
         mul             \regtype\()0, a5, \regtype\()1
+.endif
         add             \regtype\()0, \regtype\()0, \regtype\()2
         .irp n 1,2,3,4,5,6
         lb              \regtype\n, \n(\regtype\()0)
@@ -238,6 +242,19 @@ subpel_filters_smooth:
         li              a5, 64
 .ifc \from_mem, 1
         vle8.v          v22, (a2)
+.ifc \type,v
+        sub             a2, a2, a3
+        vle8.v          v20, (a2)
+        add             a2, a2, a3
+        add             a2, a2, a3
+        vle8.v          v24, (a2)
+        add             a2, a2, a3
+        vle8.v          v26, (a2)
+        add             a2, a2, a3
+        vle8.v          v28, (a2)
+        add             a2, a2, a3
+        vle8.v          v30, (a2)
+.elseif \type == h
         addi            a2, a2, -1
         vle8.v          v20, (a2)
         addi            a2, a2, 2
@@ -248,6 +265,7 @@ subpel_filters_smooth:
         vle8.v          v28, (a2)
         addi            a2, a2, 1
         vle8.v          v30, (a2)
+.endif
 
 .ifc \name,smooth
         vwmulu.vx       v16, v24, \regtype\()4
@@ -266,11 +284,23 @@ subpel_filters_smooth:
         vwmaccsu.vx     v16, s7, v30
 .endif
 
+.ifc \type,v
+        .rept 6
+        sub             a2, a2, a3
+        .endr
+        vle8.v          v28, (a2)
+        sub             a2, a2, a3
+        vle8.v          v26, (a2)
+        .rept 3
+        add             a2, a2, a3
+        .endr
+.elseif \type == h
         addi            a2, a2, -6
         vle8.v          v28, (a2)
         addi            a2, a2, -1
         vle8.v          v26, (a2)
         addi            a2, a2, 3
+.endif
 
 .ifc \name,smooth
         vwmaccsu.vx     v16, \regtype\()1, v28
@@ -410,7 +440,7 @@ endfunc
 
 .irp name regular sharp smooth
         .irp do put avg
-                .irp type h
+                .irp type h v
                         gen_epel \len \do \name \type
                 .endr
         .endr
diff --git a/libavcodec/riscv/vp9dsp_init.c b/libavcodec/riscv/vp9dsp_init.c
index 413b203e5f..da09918796 100644
--- a/libavcodec/riscv/vp9dsp_init.c
+++ b/libavcodec/riscv/vp9dsp_init.c
@@ -125,7 +125,8 @@ static av_cold void vp9dsp_mc_init_rvv(VP9DSPContext *dsp, int bpp)
     init_subpel1(4, idx, idxh, idxv,  4, dir, type)
 
 #define init_subpel3(idx, type)         \
-    init_subpel2(idx, 1, 0, h, type)
+    init_subpel2(idx, 1, 0, h, type);   \
+    init_subpel2(idx, 0, 1, v, type)
 
     init_subpel3(0, put);
     init_subpel3(1, avg);
-- 
2.44.0


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