mirror of https://git.ffmpeg.org/ffmpeg.git
lavu/fixed_dsp: R-V V vector_fmul_add
vector_fmul_add_fixed_c: 2.2 vector_fmul_add_fixed_rvv_i64: 0.5
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@ -25,6 +25,8 @@
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#include "libavutil/cpu.h"
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#include "libavutil/cpu.h"
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#include "libavutil/fixed_dsp.h"
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#include "libavutil/fixed_dsp.h"
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void ff_vector_fmul_add_fixed_rvv(int *dst, const int *src0, const int *src1,
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const int *src2, int len);
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int ff_scalarproduct_fixed_rvv(const int *v1, const int *v2, int len);
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int ff_scalarproduct_fixed_rvv(const int *v1, const int *v2, int len);
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void ff_butterflies_fixed_rvv(int *v1, int *v2, int len);
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void ff_butterflies_fixed_rvv(int *v1, int *v2, int len);
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@ -34,8 +36,11 @@ av_cold void ff_fixed_dsp_init_riscv(AVFixedDSPContext *fdsp)
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int flags = av_get_cpu_flags();
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int flags = av_get_cpu_flags();
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if ((flags & AV_CPU_FLAG_RVV_I32) && (flags & AV_CPU_FLAG_RVB_ADDR)) {
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if ((flags & AV_CPU_FLAG_RVV_I32) && (flags & AV_CPU_FLAG_RVB_ADDR)) {
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fdsp->vector_fmul_add = ff_vector_fmul_add_fixed_rvv;
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if (flags & AV_CPU_FLAG_RVV_I64)
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if (flags & AV_CPU_FLAG_RVV_I64)
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fdsp->scalarproduct_fixed = ff_scalarproduct_fixed_rvv;
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fdsp->scalarproduct_fixed = ff_scalarproduct_fixed_rvv;
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fdsp->butterflies_fixed = ff_butterflies_fixed_rvv;
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fdsp->butterflies_fixed = ff_butterflies_fixed_rvv;
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}
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}
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#endif
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#endif
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@ -20,6 +20,27 @@
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#include "asm.S"
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#include "asm.S"
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func ff_vector_fmul_add_fixed_rvv, zve32x
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csrwi vxrm, 0
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1:
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vsetvli t0, a4, e32, m8, ta, ma
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vle32.v v16, (a1)
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sub a4, a4, t0
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vle32.v v24, (a2)
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sh2add a1, t0, a1
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vsmul.vv v8, v16, v24
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sh2add a2, t0, a2
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vle32.v v0,(a3)
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sh2add a3, t0, a3
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vadd.vv v8, v8, v0
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vse32.v v8, (a0)
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sh2add a0, t0, a0
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bnez a4, 1b
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ret
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endfunc
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func ff_scalarproduct_fixed_rvv, zve64x
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func ff_scalarproduct_fixed_rvv, zve64x
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li t1, 1 << 30
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li t1, 1 << 30
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vsetvli t0, zero, e64, m8, ta, ma
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vsetvli t0, zero, e64, m8, ta, ma
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