[FFmpeg-devel] [PATCH 03/10] lavc/vp8dsp: R-V V put_bilin_v

[uk7b at foxmail.com]

From: sunyuechi <sunyuechi at iscas.ac.cn>

C908:
vp8_put_bilin4_v_c: 383.5
vp8_put_bilin4_v_rvv_i32: 139.7
vp8_put_bilin8_v_c: 1455.7
vp8_put_bilin8_v_rvv_i32: 299.7
vp8_put_bilin16_v_c: 2863.7
vp8_put_bilin16_v_rvv_i32: 347.7
---
 libavcodec/riscv/vp8dsp_init.c |  7 +++++++
 libavcodec/riscv/vp8dsp_rvv.S  | 25 +++++++++++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/libavcodec/riscv/vp8dsp_init.c b/libavcodec/riscv/vp8dsp_init.c
index 778d5ceb29..afffa6de2f 100644
--- a/libavcodec/riscv/vp8dsp_init.c
+++ b/libavcodec/riscv/vp8dsp_init.c
@@ -60,6 +60,13 @@ av_cold void ff_vp78dsp_init_riscv(VP8DSPContext *c)
         c->put_vp8_bilinear_pixels_tab[1][0][2] = ff_put_vp8_bilin8_h_rvv;
         c->put_vp8_bilinear_pixels_tab[2][0][1] = ff_put_vp8_bilin4_h_rvv;
         c->put_vp8_bilinear_pixels_tab[2][0][2] = ff_put_vp8_bilin4_h_rvv;
+
+        c->put_vp8_bilinear_pixels_tab[0][1][0] = ff_put_vp8_bilin16_v_rvv;
+        c->put_vp8_bilinear_pixels_tab[0][2][0] = ff_put_vp8_bilin16_v_rvv;
+        c->put_vp8_bilinear_pixels_tab[1][1][0] = ff_put_vp8_bilin8_v_rvv;
+        c->put_vp8_bilinear_pixels_tab[1][2][0] = ff_put_vp8_bilin8_v_rvv;
+        c->put_vp8_bilinear_pixels_tab[2][1][0] = ff_put_vp8_bilin4_v_rvv;
+        c->put_vp8_bilinear_pixels_tab[2][2][0] = ff_put_vp8_bilin4_v_rvv;
     }
 #endif
 #endif
diff --git a/libavcodec/riscv/vp8dsp_rvv.S b/libavcodec/riscv/vp8dsp_rvv.S
index 760d9d3871..2a2d40d77d 100644
--- a/libavcodec/riscv/vp8dsp_rvv.S
+++ b/libavcodec/riscv/vp8dsp_rvv.S
@@ -113,6 +113,31 @@ func ff_put_vp8_bilin\len\()_h_rvv, zve32x
 endfunc
 .endm
 
+.macro put_vp8_bilin_v len
+func ff_put_vp8_bilin\len\()_v_rvv, zve32x
+        vsetvlstatic8   \len
+        li              t1, 8
+        li              t4, 4
+        sub             t1, t1, a6
+1:
+        add             t2, a2, a3
+        addi            a4, a4, -1
+        vle8.v          v0, (a2)
+        vle8.v          v2, (t2)
+        vwmulu.vx       v28, v0, t1
+        vwmaccu.vx      v28, a6, v2
+        vwaddu.wx       v24, v28, t4
+        vnsra.wi        v0, v24, 3
+        vse8.v          v0, (a0)
+        add             a2, a2, a3
+        add             a0, a0, a1
+        bnez            a4, 1b
+
+        ret
+endfunc
+.endm
+
 .irp len 16,8,4
 put_vp8_bilin_h \len
+put_vp8_bilin_v \len
 .endr
-- 
2.45.0