[FFmpeg-devel] [PATCH 03/10] lavc/vp9dsp: R-V V ipred tm

[uk7b@foxmail.com]

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

C908:
vp9_tm_4x4_8bpp_c: 116.5
vp9_tm_4x4_8bpp_rvv_i32: 43.5
vp9_tm_8x8_8bpp_c: 416.2
vp9_tm_8x8_8bpp_rvv_i32: 86.0
vp9_tm_16x16_8bpp_c: 1665.5
vp9_tm_16x16_8bpp_rvv_i32: 187.2
vp9_tm_32x32_8bpp_c: 6974.2
vp9_tm_32x32_8bpp_rvv_i32: 625.7
---
 libavcodec/riscv/vp9_intra_rvv.S | 143 +++++++++++++++++++++++++++++++
 libavcodec/riscv/vp9dsp.h        |   8 ++
 libavcodec/riscv/vp9dsp_init.c   |   4 +
 3 files changed, 155 insertions(+)

diff --git a/libavcodec/riscv/vp9_intra_rvv.S b/libavcodec/riscv/vp9_intra_rvv.S
index 1b270215fb..c6ddd541e4 100644
--- a/libavcodec/riscv/vp9_intra_rvv.S
+++ b/libavcodec/riscv/vp9_intra_rvv.S
@@ -204,3 +204,146 @@ func ff_h_8x8_rvv, zve32x
 
         ret
 endfunc
+
+.macro tm_sum dst, top, offset
+        lbu          t3, \offset(a2)
+        sub          t3, t3, a4
+        vadd.vx      \dst, \top, t3
+.endm
+
+func ff_tm_32x32_rvv, zve32x
+        lbu          a4, -1(a3)
+        li           t5, 32
+
+        .macro tm_sum32 n1,n2,n3,n4,n5,n6,n7,n8
+
+        vsetvli      zero, t5, e16, m4, ta, ma
+        vle8.v       v8, (a3)
+        vzext.vf2    v28, v8
+
+        tm_sum       v0, v28, \n1
+        tm_sum       v4, v28, \n2
+        tm_sum       v8, v28, \n3
+        tm_sum       v12, v28, \n4
+        tm_sum       v16, v28, \n5
+        tm_sum       v20, v28, \n6
+        tm_sum       v24, v28, \n7
+        tm_sum       v28, v28, \n8
+
+        .irp n 0, 4, 8, 12, 16, 20, 24, 28
+        vmax.vx      v\n, v\n, zero
+        .endr
+
+        vsetvli      zero, zero, e8, m2, ta, ma
+        .irp n 0, 4, 8, 12, 16, 20, 24, 28
+        vnclipu.wi   v\n, v\n, 0
+        vse8.v       v\n, (a0)
+        add          a0, a0, a1
+        .endr
+
+        .endm
+
+        tm_sum32     31, 30, 29, 28, 27, 26, 25, 24
+        tm_sum32     23, 22, 21, 20, 19, 18, 17, 16
+        tm_sum32     15, 14, 13, 12, 11, 10, 9, 8
+        tm_sum32     7, 6, 5, 4, 3, 2, 1, 0
+
+        ret
+endfunc
+
+func ff_tm_16x16_rvv, zve32x
+        vsetivli      zero, 16, e16, m2, ta, ma
+        vle8.v        v8, (a3)
+        vzext.vf2     v30, v8
+        lbu           a4, -1(a3)
+
+        tm_sum       v0, v30, 15
+        tm_sum       v2, v30, 14
+        tm_sum       v4, v30, 13
+        tm_sum       v6, v30, 12
+        tm_sum       v8, v30, 11
+        tm_sum       v10, v30, 10
+        tm_sum       v12, v30, 9
+        tm_sum       v14, v30, 8
+        tm_sum       v16, v30, 7
+        tm_sum       v18, v30, 6
+        tm_sum       v20, v30, 5
+        tm_sum       v22, v30, 4
+        tm_sum       v24, v30, 3
+        tm_sum       v26, v30, 2
+        tm_sum       v28, v30, 1
+        tm_sum       v30, v30, 0
+
+        .irp n 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30
+        vmax.vx      v\n, v\n, zero
+        .endr
+
+        vsetvli      zero, zero, e8, m1, ta, ma
+        .irp n 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28
+        vnclipu.wi   v\n, v\n, 0
+        vse8.v       v\n, (a0)
+        add          a0, a0, a1
+        .endr
+        vnclipu.wi   v30, v30, 0
+        vse8.v       v30, (a0)
+
+        ret
+endfunc
+
+func ff_tm_8x8_rvv, zve32x
+        vsetivli     zero, 8, e16, m1, ta, ma
+        vle8.v       v8, (a3)
+        vzext.vf2    v28, v8
+        lbu          a4, -1(a3)
+
+        tm_sum       v16, v28, 7
+        tm_sum       v17, v28, 6
+        tm_sum       v18, v28, 5
+        tm_sum       v19, v28, 4
+        tm_sum       v20, v28, 3
+        tm_sum       v21, v28, 2
+        tm_sum       v22, v28, 1
+        tm_sum       v23, v28, 0
+
+        .irp n 16, 17, 18, 19, 20, 21, 22, 23
+        vmax.vx      v\n, v\n, zero
+        .endr
+
+        vsetvli      zero, zero, e8, mf2, ta, ma
+        .irp n 16, 17, 18, 19, 20, 21, 22
+        vnclipu.wi   v\n, v\n, 0
+        vse8.v       v\n, (a0)
+        add          a0, a0, a1
+        .endr
+        vnclipu.wi   v24, v23, 0
+        vse8.v       v24, (a0)
+
+        ret
+endfunc
+
+func ff_tm_4x4_rvv, zve32x
+        vsetivli     zero, 4, e16, mf2, ta, ma
+        vle8.v       v8, (a3)
+        vzext.vf2    v28, v8
+        lbu          a4, -1(a3)
+
+        tm_sum       v16, v28, 3
+        tm_sum       v17, v28, 2
+        tm_sum       v18, v28, 1
+        tm_sum       v19, v28, 0
+
+        .irp n 16, 17, 18, 19
+        vmax.vx      v\n, v\n, zero
+        .endr
+
+        vsetvli      zero, zero, e8, mf4, ta, ma
+        .irp n 16, 17, 18
+        vnclipu.wi   v\n, v\n, 0
+        vse8.v       v\n, (a0)
+        add          a0, a0, a1
+        .endr
+        vnclipu.wi   v24, v19, 0
+        vse8.v       v24, (a0)
+
+        ret
+endfunc
diff --git a/libavcodec/riscv/vp9dsp.h b/libavcodec/riscv/vp9dsp.h
index d4c7652286..36e1a8795b 100644
--- a/libavcodec/riscv/vp9dsp.h
+++ b/libavcodec/riscv/vp9dsp.h
@@ -72,6 +72,14 @@ void ff_h_16x16_rvv(uint8_t *dst, ptrdiff_t stride, const uint8_t *l,
                     const uint8_t *a);
 void ff_h_8x8_rvv(uint8_t *dst, ptrdiff_t stride, const uint8_t *l,
                   const uint8_t *a);
+void ff_tm_32x32_rvv(uint8_t *dst, ptrdiff_t stride, const uint8_t *l,
+                     const uint8_t *a);
+void ff_tm_16x16_rvv(uint8_t *dst, ptrdiff_t stride, const uint8_t *l,
+                     const uint8_t *a);
+void ff_tm_8x8_rvv(uint8_t *dst, ptrdiff_t stride, const uint8_t *l,
+                   const uint8_t *a);
+void ff_tm_4x4_rvv(uint8_t *dst, ptrdiff_t stride, const uint8_t *l,
+                   const uint8_t *a);
 
 #define VP9_8TAP_RISCV_RVV_FUNC(SIZE, type, type_idx)                         \
 void ff_put_8tap_##type##_##SIZE##h_rvv(uint8_t *dst, ptrdiff_t dststride,   \
diff --git a/libavcodec/riscv/vp9dsp_init.c b/libavcodec/riscv/vp9dsp_init.c
index 16aeeb260a..f08c8f6a42 100644
--- a/libavcodec/riscv/vp9dsp_init.c
+++ b/libavcodec/riscv/vp9dsp_init.c
@@ -57,6 +57,10 @@ static av_cold void vp9dsp_intrapred_init_rvv(VP9DSPContext *dsp, int bpp)
             dsp->intra_pred[TX_32X32][HOR_PRED] = ff_h_32x32_rvv;
             dsp->intra_pred[TX_16X16][HOR_PRED] = ff_h_16x16_rvv;
             dsp->intra_pred[TX_8X8][HOR_PRED] = ff_h_8x8_rvv;
+            dsp->intra_pred[TX_32X32][TM_VP8_PRED] = ff_tm_32x32_rvv;
+            dsp->intra_pred[TX_16X16][TM_VP8_PRED] = ff_tm_16x16_rvv;
+            dsp->intra_pred[TX_8X8][TM_VP8_PRED] = ff_tm_8x8_rvv;
+            dsp->intra_pred[TX_4X4][TM_VP8_PRED] = ff_tm_4x4_rvv;
         }
     #endif
 }
-- 
2.45.0

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