From 47a10b9a99130457c27b220afba7d7de4a69bb18 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?R=C3=A9mi=20Denis-Courmont?= Date: Mon, 26 Sep 2022 17:52:43 +0300 Subject: [PATCH] lavc/fmtconvert: RISC-V V int32_to_float_fmul_scalar --- libavcodec/fmtconvert.c | 2 ++ libavcodec/fmtconvert.h | 1 + libavcodec/riscv/Makefile | 2 ++ libavcodec/riscv/fmtconvert_init.c | 39 ++++++++++++++++++++++++++++++ libavcodec/riscv/fmtconvert_rvv.S | 39 ++++++++++++++++++++++++++++++ 5 files changed, 83 insertions(+) create mode 100644 libavcodec/riscv/fmtconvert_init.c create mode 100644 libavcodec/riscv/fmtconvert_rvv.S diff --git a/libavcodec/fmtconvert.c b/libavcodec/fmtconvert.c index cedfd61138..d889e61aca 100644 --- a/libavcodec/fmtconvert.c +++ b/libavcodec/fmtconvert.c @@ -52,6 +52,8 @@ av_cold void ff_fmt_convert_init(FmtConvertContext *c) ff_fmt_convert_init_arm(c); #elif ARCH_PPC ff_fmt_convert_init_ppc(c); +#elif ARCH_RISCV + ff_fmt_convert_init_riscv(c); #elif ARCH_X86 ff_fmt_convert_init_x86(c); #endif diff --git a/libavcodec/fmtconvert.h b/libavcodec/fmtconvert.h index da244e05a5..1cb4628a64 100644 --- a/libavcodec/fmtconvert.h +++ b/libavcodec/fmtconvert.h @@ -61,6 +61,7 @@ void ff_fmt_convert_init(FmtConvertContext *c); void ff_fmt_convert_init_aarch64(FmtConvertContext *c); void ff_fmt_convert_init_arm(FmtConvertContext *c); void ff_fmt_convert_init_ppc(FmtConvertContext *c); +void ff_fmt_convert_init_riscv(FmtConvertContext *c); void ff_fmt_convert_init_x86(FmtConvertContext *c); void ff_fmt_convert_init_mips(FmtConvertContext *c); diff --git a/libavcodec/riscv/Makefile b/libavcodec/riscv/Makefile index 99541b075e..682174e875 100644 --- a/libavcodec/riscv/Makefile +++ b/libavcodec/riscv/Makefile @@ -1,5 +1,7 @@ OBJS-$(CONFIG_AUDIODSP) += riscv/audiodsp_init.o \ riscv/audiodsp_rvf.o RVV-OBJS-$(CONFIG_AUDIODSP) += riscv/audiodsp_rvv.o +OBJS-$(CONFIG_FMTCONVERT) += riscv/fmtconvert_init.o +RVV-OBJS-$(CONFIG_FMTCONVERT) += riscv/fmtconvert_rvv.o OBJS-$(CONFIG_PIXBLOCKDSP) += riscv/pixblockdsp_init.o \ riscv/pixblockdsp_rvi.o diff --git a/libavcodec/riscv/fmtconvert_init.c b/libavcodec/riscv/fmtconvert_init.c new file mode 100644 index 0000000000..b2c240c1ce --- /dev/null +++ b/libavcodec/riscv/fmtconvert_init.c @@ -0,0 +1,39 @@ +/* + * Copyright © 2022 Rémi Denis-Courmont. + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include + +#include "config.h" +#include "libavutil/attributes.h" +#include "libavutil/cpu.h" +#include "libavcodec/fmtconvert.h" + +void ff_int32_to_float_fmul_scalar_rvv(float *dst, const int32_t *src, + float mul, int len); + +av_cold void ff_fmt_convert_init_riscv(FmtConvertContext *c) +{ +#ifdef HAVE_RVV + int flags = av_get_cpu_flags(); + + if (flags & AV_CPU_FLAG_RVV_F32) + c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_rvv; +#endif +} diff --git a/libavcodec/riscv/fmtconvert_rvv.S b/libavcodec/riscv/fmtconvert_rvv.S new file mode 100644 index 0000000000..b7c78831a0 --- /dev/null +++ b/libavcodec/riscv/fmtconvert_rvv.S @@ -0,0 +1,39 @@ +/* + * Copyright © 2022 Rémi Denis-Courmont. + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "config.h" +#include "../libavutil/riscv/asm.S" + +func ff_int32_to_float_fmul_scalar_rvv, zve32f +NOHWF fmv.w.x fa0, a2 +NOHWF mv a2, a3 +1: + vsetvli t0, a2, e32, m1, ta, ma + vle32.v v24, (a1) + sub a2, a2, t0 + vfcvt.f.x.v v24, v24 + sh2add a1, t0, a1 + vfmul.vf v24, v24, fa0 + vse32.v v24, (a0) + sh2add a0, t0, a0 + bnez a2, 1b + + ret +endfunc