[FFmpeg-cvslog] lavc/llviddsp: R-V V add_bytes
Rémi Denis-Courmont
git at videolan.org
Sat Nov 18 23:05:31 EET 2023
ffmpeg | branch: master | Rémi Denis-Courmont <remi at remlab.net> | Wed Nov 15 22:34:26 2023 +0200| [fbc7adba6742c4d33ae525a72881f456281b4c46] | committer: Rémi Denis-Courmont
lavc/llviddsp: R-V V add_bytes
add_bytes_c: 2077.2
add_bytes_rvv_i32: 105.0
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=fbc7adba6742c4d33ae525a72881f456281b4c46
---
libavcodec/lossless_videodsp.c | 2 ++
libavcodec/lossless_videodsp.h | 1 +
libavcodec/riscv/Makefile | 2 ++
libavcodec/riscv/llviddsp_init.c | 38 ++++++++++++++++++++++++++++++++++++++
libavcodec/riscv/llviddsp_rvv.S | 36 ++++++++++++++++++++++++++++++++++++
5 files changed, 79 insertions(+)
diff --git a/libavcodec/lossless_videodsp.c b/libavcodec/lossless_videodsp.c
index 359606981c..876decb1e6 100644
--- a/libavcodec/lossless_videodsp.c
+++ b/libavcodec/lossless_videodsp.c
@@ -121,6 +121,8 @@ void ff_llviddsp_init(LLVidDSPContext *c)
#if ARCH_PPC
ff_llviddsp_init_ppc(c);
+#elif ARCH_RISCV
+ ff_llviddsp_init_riscv(c);
#elif ARCH_X86
ff_llviddsp_init_x86(c);
#endif
diff --git a/libavcodec/lossless_videodsp.h b/libavcodec/lossless_videodsp.h
index da4baa1414..5309ce4be7 100644
--- a/libavcodec/lossless_videodsp.h
+++ b/libavcodec/lossless_videodsp.h
@@ -40,6 +40,7 @@ typedef struct LLVidDSPContext {
} LLVidDSPContext;
void ff_llviddsp_init(LLVidDSPContext *llviddsp);
+void ff_llviddsp_init_riscv(LLVidDSPContext *llviddsp);
void ff_llviddsp_init_x86(LLVidDSPContext *llviddsp);
void ff_llviddsp_init_ppc(LLVidDSPContext *llviddsp);
diff --git a/libavcodec/riscv/Makefile b/libavcodec/riscv/Makefile
index d34dc77458..8f2a519827 100644
--- a/libavcodec/riscv/Makefile
+++ b/libavcodec/riscv/Makefile
@@ -28,6 +28,8 @@ OBJS-$(CONFIG_IDCTDSP) += riscv/idctdsp_init.o
RVV-OBJS-$(CONFIG_IDCTDSP) += riscv/idctdsp_rvv.o
OBJS-$(CONFIG_LLAUDDSP) += riscv/llauddsp_init.o
RVV-OBJS-$(CONFIG_LLAUDDSP) += riscv/llauddsp_rvv.o
+OBJS-$(CONFIG_LLVIDDSP) += riscv/llviddsp_init.o
+RVV-OBJS-$(CONFIG_LLVIDDSP) += riscv/llviddsp_rvv.o
OBJS-$(CONFIG_OPUS_DECODER) += riscv/opusdsp_init.o
RVV-OBJS-$(CONFIG_OPUS_DECODER) += riscv/opusdsp_rvv.o
OBJS-$(CONFIG_PIXBLOCKDSP) += riscv/pixblockdsp_init.o \
diff --git a/libavcodec/riscv/llviddsp_init.c b/libavcodec/riscv/llviddsp_init.c
new file mode 100644
index 0000000000..f042eeab32
--- /dev/null
+++ b/libavcodec/riscv/llviddsp_init.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright © 2023 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/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavcodec/lossless_videodsp.h"
+
+void ff_llvid_add_bytes_rvv(uint8_t *, uint8_t *src, ptrdiff_t w);
+
+av_cold void ff_llviddsp_init_riscv(LLVidDSPContext *c)
+{
+#if HAVE_RVV
+ int flags = av_get_cpu_flags();
+
+ if (flags & AV_CPU_FLAG_RVV_I32) {
+ c->add_bytes = ff_llvid_add_bytes_rvv;
+ }
+#endif
+}
diff --git a/libavcodec/riscv/llviddsp_rvv.S b/libavcodec/riscv/llviddsp_rvv.S
new file mode 100644
index 0000000000..a4814837b9
--- /dev/null
+++ b/libavcodec/riscv/llviddsp_rvv.S
@@ -0,0 +1,36 @@
+/*
+ * Copyright © 2023 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 "libavutil/riscv/asm.S"
+
+func ff_llvid_add_bytes_rvv, zve32x
+1:
+ vsetvli t0, a2, e8, m8, ta, ma
+ vle8.v v0, (a1)
+ sub a2, a2, t0
+ vle8.v v8, (a0)
+ add a1, t0, a1
+ vadd.vv v8, v0, v8
+ vse8.v v8, (a0)
+ add a0, t0, a0
+ bnez a2, 1b
+
+ ret
+endfunc
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