lavc/aacpsdsp: RISC-V V add_squares

3 files changed, 76 insertions, 0 deletions

diff --git a/libavcodec/riscv/Makefile b/libavcodec/riscv/Makefile
index 03a95301d7..829a1823d2 100644
--- a/libavcodec/riscv/Makefile
+++ b/libavcodec/riscv/Makefile
@@ -1,3 +1,5 @@
+OBJS-$(CONFIG_AAC_DECODER) += riscv/aacpsdsp_init.o
+RVV-OBJS-$(CONFIG_AAC_DECODER) += riscv/aacpsdsp_rvv.o
 OBJS-$(CONFIG_AUDIODSP) += riscv/audiodsp_init.o \
                            riscv/audiodsp_rvf.o
 RVV-OBJS-$(CONFIG_AUDIODSP) += riscv/audiodsp_rvv.o
diff --git a/libavcodec/riscv/aacpsdsp_init.c b/libavcodec/riscv/aacpsdsp_init.c
new file mode 100644
index 0000000000..83f6d9b16b
--- /dev/null
+++ b/libavcodec/riscv/aacpsdsp_init.c
@@ -0,0 +1,37 @@
+/*
+ * 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/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavcodec/aacpsdsp.h"
+
+void ff_ps_add_squares_rvv(float *dst, const float (*src)[2], int n);
+
+av_cold void ff_psdsp_init_riscv(PSDSPContext *c)
+{
+#if HAVE_RVV
+    int flags = av_get_cpu_flags();
+
+    if (flags & AV_CPU_FLAG_RVV_F32)
+        c->add_squares = ff_ps_add_squares_rvv;
+#endif
+}
diff --git a/libavcodec/riscv/aacpsdsp_rvv.S b/libavcodec/riscv/aacpsdsp_rvv.S
new file mode 100644
index 0000000000..b516063ea7
--- /dev/null
+++ b/libavcodec/riscv/aacpsdsp_rvv.S
@@ -0,0 +1,37 @@
+/*
+ * 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 "libavutil/riscv/asm.S"
+
+func ff_ps_add_squares_rvv, zve32f
+1:
+        vsetvli     t0, a2, e32, m1, ta, ma
+        vlseg2e32.v v24, (a1)
+        sub         a2, a2, t0
+        vle32.v     v16, (a0)
+        sh3add      a1, t0, a1
+        vfmacc.vv   v16, v24, v24
+        vfmacc.vv   v16, v25, v25
+        vse32.v     v16, (a0)
+        sh2add      a0, t0, a0
+        bnez        a2, 1b
+
+        ret
+endfunc