diff options
Diffstat (limited to 'libavutil/riscv/fixed_dsp_rvv.S')
| -rw-r--r-- | libavutil/riscv/fixed_dsp_rvv.S | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/libavutil/riscv/fixed_dsp_rvv.S b/libavutil/riscv/fixed_dsp_rvv.S index 68de6d7e1b..6bac5813b8 100644 --- a/libavutil/riscv/fixed_dsp_rvv.S +++ b/libavutil/riscv/fixed_dsp_rvv.S @@ -20,6 +20,54 @@ #include "asm.S" +func ff_vector_fmul_window_scaled_rvv, zve64x + csrwi vxrm, 0 + vsetvli t0, zero, e16, m1, ta, ma + sh2add a2, a4, a2 + vid.v v0 + sh3add t3, a4, a3 + vadd.vi v0, v0, 1 + sh2add t0, a4, a0 +1: + vsetvli t2, a4, e16, m1, ta, ma + slli t4, t2, 2 + slli t1, t2, 1 + vrsub.vx v2, v0, t2 + sub t3, t3, t4 + vsetvli zero, zero, e32, m2, ta, ma + sub a2, a2, t4 + vle32.v v8, (t3) + sub t0, t0, t1 + vle32.v v4, (a2) + sub a4, a4, t2 + vrgatherei16.vv v28, v8, v2 + vle32.v v16, (a1) + add a1, a1, t4 + vrgatherei16.vv v20, v4, v2 + vle32.v v24, (a3) + add a3, a3, t4 + vwmul.vv v12, v16, v28 + vwmul.vv v8, v16, v24 + // vwnmsac.vv does _not_ exist so multiply & subtract separately + vwmul.vv v4, v20, v24 + vwmacc.vv v8, v20, v28 + vsetvli zero, zero, e64, m4, ta, ma + vsub.vv v12, v12, v4 + vsetvli zero, zero, e32, m2, ta, ma + vnclip.wi v16, v8, 31 + vnclip.wi v20, v12, 31 + vsetvli zero, zero, e16, m1, ta, ma + vnclip.wx v8, v16, a5 + vnclip.wx v12, v20, a5 + vrgatherei16.vv v16, v8, v2 + vse16.v v12, (a0) + add a0, a0, t1 + vse16.v v16, (t0) + bnez a4, 1b + + ret +endfunc + func ff_vector_fmul_window_fixed_rvv, zve64x csrwi vxrm, 0 vsetvli t0, zero, e16, m1, ta, ma |