/
ffmpeg-4.4-e2k.patch
16454 lines (16385 loc) · 582 KB
/
ffmpeg-4.4-e2k.patch
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From ea7b7b4a469a7ea1d13a8f1bd0da8552f33cc211 Mon Sep 17 00:00:00 2001
From: Ilya Kurdyukov <jpegqs@gmail.com>
Date: Wed, 26 May 2021 16:08:59 +0700
Subject: [PATCH] ffmpeg-4.4 e2k support
---
configure | 22 +-
libavcodec/audiodsp.c | 2 +
libavcodec/audiodsp.h | 1 +
libavcodec/blockdsp.c | 2 +
libavcodec/blockdsp.h | 1 +
libavcodec/e2k/Makefile | 32 +
libavcodec/e2k/audiodsp.c | 62 +
libavcodec/e2k/blockdsp.c | 72 +
libavcodec/e2k/dctdsp.h | 29 +
libavcodec/e2k/fdctdsp.c | 389 ++++
libavcodec/e2k/fft.c | 1043 ++++++++++
libavcodec/e2k/fft.h | 29 +
libavcodec/e2k/fft_init.c | 152 ++
libavcodec/e2k/fmtconvert.c | 55 +
libavcodec/e2k/h264chroma.c | 57 +
libavcodec/e2k/h264chroma_template.c | 209 ++
libavcodec/e2k/h264dsp.c | 1012 +++++++++
libavcodec/e2k/h264qpel.c | 83 +
libavcodec/e2k/h264qpel_template.c | 504 +++++
libavcodec/e2k/hevcdsp.c | 2893 ++++++++++++++++++++++++++
libavcodec/e2k/hpeldsp.c | 490 +++++
libavcodec/e2k/hpeldsp.h | 30 +
libavcodec/e2k/idctdsp.c | 324 +++
libavcodec/e2k/lossless_audiodsp.c | 75 +
libavcodec/e2k/lossless_videodsp.c | 59 +
libavcodec/e2k/mdct15.c | 187 ++
libavcodec/e2k/me_cmp.c | 461 ++++
libavcodec/e2k/mpegaudiodsp.c | 142 ++
libavcodec/e2k/mpegvideo.c | 100 +
libavcodec/e2k/mpegvideodsp.c | 86 +
libavcodec/e2k/mpegvideoencdsp.c | 75 +
libavcodec/e2k/pixblockdsp.c | 83 +
libavcodec/e2k/svq1enc.c | 68 +
libavcodec/e2k/vc1dsp.c | 298 +++
libavcodec/e2k/videodsp.c | 36 +
libavcodec/e2k/vorbisdsp.c | 62 +
libavcodec/e2k/vp3dsp.c | 169 ++
libavcodec/e2k/vp8dsp.c | 428 ++++
libavcodec/e2k/vp9dsp.c | 1740 ++++++++++++++++
libavcodec/e2k/xvididct.c | 198 ++
libavcodec/fdctdsp.c | 2 +
libavcodec/fdctdsp.h | 2 +
libavcodec/fft.h | 1 +
libavcodec/fft_template.c | 1 +
libavcodec/fmtconvert.c | 2 +
libavcodec/fmtconvert.h | 1 +
libavcodec/h264chroma.c | 2 +
libavcodec/h264chroma.h | 1 +
libavcodec/h264dsp.c | 1 +
libavcodec/h264dsp.h | 2 +
libavcodec/h264qpel.c | 2 +
libavcodec/h264qpel.h | 1 +
libavcodec/hevcdsp.c | 2 +
libavcodec/hevcdsp.h | 1 +
libavcodec/hpeldsp.c | 2 +
libavcodec/hpeldsp.h | 1 +
libavcodec/idctdsp.c | 2 +
libavcodec/idctdsp.h | 2 +
libavcodec/lossless_audiodsp.c | 2 +
libavcodec/lossless_audiodsp.h | 1 +
libavcodec/lossless_videodsp.c | 2 +
libavcodec/lossless_videodsp.h | 1 +
libavcodec/mdct15.c | 2 +
libavcodec/mdct15.h | 1 +
libavcodec/me_cmp.c | 2 +
libavcodec/me_cmp.h | 1 +
libavcodec/mpegaudiodsp.c | 1 +
libavcodec/mpegaudiodsp.h | 1 +
libavcodec/mpegvideo.c | 2 +
libavcodec/mpegvideo.h | 1 +
libavcodec/mpegvideodsp.c | 2 +
libavcodec/mpegvideodsp.h | 1 +
libavcodec/mpegvideoencdsp.c | 2 +
libavcodec/mpegvideoencdsp.h | 2 +
libavcodec/pixblockdsp.c | 2 +
libavcodec/pixblockdsp.h | 2 +
libavcodec/svq1enc.c | 2 +
libavcodec/svq1enc.h | 1 +
libavcodec/tests/dct.c | 2 +
libavcodec/tests/e2k/dct.c | 33 +
libavcodec/vc1dsp.c | 2 +
libavcodec/vc1dsp.h | 1 +
libavcodec/videodsp.c | 2 +
libavcodec/videodsp.h | 1 +
libavcodec/vorbisdsp.c | 2 +
libavcodec/vorbisdsp.h | 1 +
libavcodec/vp3dsp.c | 2 +
libavcodec/vp3dsp.h | 1 +
libavcodec/vp8dsp.c | 2 +
libavcodec/vp8dsp.h | 1 +
libavcodec/vp9dsp.c | 1 +
libavcodec/vp9dsp.h | 1 +
libavcodec/xvididct.c | 2 +
libavcodec/xvididct.h | 2 +
libavutil/cpu.c | 8 +
libavutil/cpu.h | 2 +
libavutil/cpu_internal.h | 2 +
libavutil/e2k/Makefile | 2 +
libavutil/e2k/cpu.c | 41 +
libavutil/e2k/cpu.h | 27 +
libavutil/e2k/float_dsp.c | 188 ++
libavutil/e2k/intreadwrite.h | 54 +
libavutil/e2k/timer.h | 35 +
libavutil/e2k/util_e2k.h | 146 ++
libavutil/float_dsp.c | 2 +
libavutil/float_dsp.h | 1 +
libavutil/intreadwrite.h | 2 +
libavutil/tests/cpu.c | 2 +
libavutil/timer.h | 2 +
libswresample/audioconvert.c | 1 +
libswresample/e2k/Makefile | 1 +
libswresample/e2k/audio_convert.c | 110 +
libswresample/swresample_internal.h | 4 +
libswscale/e2k/Makefile | 3 +
libswscale/e2k/swscale.c | 2046 ++++++++++++++++++
libswscale/e2k/yuv2rgb.c | 248 +++
libswscale/e2k/yuv2rgb.h | 52 +
libswscale/e2k/yuv2yuv.c | 146 ++
libswscale/swscale.c | 2 +
libswscale/swscale_internal.h | 5 +
libswscale/swscale_unscaled.c | 2 +
libswscale/utils.c | 13 +
libswscale/yuv2rgb.c | 2 +
tests/checkasm/checkasm.c | 2 +
tests/checkasm/huffyuvdsp.c | 8 +-
125 files changed, 15028 insertions(+), 6 deletions(-)
create mode 100644 libavcodec/e2k/Makefile
create mode 100644 libavcodec/e2k/audiodsp.c
create mode 100644 libavcodec/e2k/blockdsp.c
create mode 100644 libavcodec/e2k/dctdsp.h
create mode 100644 libavcodec/e2k/fdctdsp.c
create mode 100644 libavcodec/e2k/fft.c
create mode 100644 libavcodec/e2k/fft.h
create mode 100644 libavcodec/e2k/fft_init.c
create mode 100644 libavcodec/e2k/fmtconvert.c
create mode 100644 libavcodec/e2k/h264chroma.c
create mode 100644 libavcodec/e2k/h264chroma_template.c
create mode 100644 libavcodec/e2k/h264dsp.c
create mode 100644 libavcodec/e2k/h264qpel.c
create mode 100644 libavcodec/e2k/h264qpel_template.c
create mode 100644 libavcodec/e2k/hevcdsp.c
create mode 100644 libavcodec/e2k/hpeldsp.c
create mode 100644 libavcodec/e2k/hpeldsp.h
create mode 100644 libavcodec/e2k/idctdsp.c
create mode 100644 libavcodec/e2k/lossless_audiodsp.c
create mode 100644 libavcodec/e2k/lossless_videodsp.c
create mode 100644 libavcodec/e2k/mdct15.c
create mode 100644 libavcodec/e2k/me_cmp.c
create mode 100644 libavcodec/e2k/mpegaudiodsp.c
create mode 100644 libavcodec/e2k/mpegvideo.c
create mode 100644 libavcodec/e2k/mpegvideodsp.c
create mode 100644 libavcodec/e2k/mpegvideoencdsp.c
create mode 100644 libavcodec/e2k/pixblockdsp.c
create mode 100644 libavcodec/e2k/svq1enc.c
create mode 100644 libavcodec/e2k/vc1dsp.c
create mode 100644 libavcodec/e2k/videodsp.c
create mode 100644 libavcodec/e2k/vorbisdsp.c
create mode 100644 libavcodec/e2k/vp3dsp.c
create mode 100644 libavcodec/e2k/vp8dsp.c
create mode 100644 libavcodec/e2k/vp9dsp.c
create mode 100644 libavcodec/e2k/xvididct.c
create mode 100644 libavcodec/tests/e2k/dct.c
create mode 100644 libavutil/e2k/Makefile
create mode 100644 libavutil/e2k/cpu.c
create mode 100644 libavutil/e2k/cpu.h
create mode 100644 libavutil/e2k/float_dsp.c
create mode 100644 libavutil/e2k/intreadwrite.h
create mode 100644 libavutil/e2k/timer.h
create mode 100644 libavutil/e2k/util_e2k.h
create mode 100644 libswresample/e2k/Makefile
create mode 100644 libswresample/e2k/audio_convert.c
create mode 100644 libswscale/e2k/Makefile
create mode 100644 libswscale/e2k/swscale.c
create mode 100644 libswscale/e2k/yuv2rgb.c
create mode 100644 libswscale/e2k/yuv2rgb.h
create mode 100644 libswscale/e2k/yuv2yuv.c
diff --git a/configure b/configure
index 4a3fac8..96ca53e 100755
--- a/configure
+++ b/configure
@@ -1996,6 +1996,7 @@ ARCH_LIST="
parisc
ppc
ppc64
+ e2k
s390
sh4
sparc
@@ -2067,6 +2068,10 @@ ARCH_EXT_LIST_PPC="
vsx
"
+ARCH_EXT_LIST_E2K="
+ e2k
+"
+
ARCH_EXT_LIST_X86="
$ARCH_EXT_LIST_X86_SIMD
cpunop
@@ -2076,6 +2081,7 @@ ARCH_EXT_LIST_X86="
ARCH_EXT_LIST="
$ARCH_EXT_LIST_ARM
$ARCH_EXT_LIST_PPC
+ $ARCH_EXT_LIST_E2K
$ARCH_EXT_LIST_X86
$ARCH_EXT_LIST_MIPS
$ARCH_EXT_LIST_LOONGSON
@@ -2605,10 +2611,10 @@ for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
done
aligned_stack_if_any="aarch64 ppc x86"
-fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
-fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
-fast_unaligned_if_any="aarch64 ppc x86"
-simd_align_16_if_any="altivec neon sse"
+fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 e2k sparc64 x86_64"
+fast_clz_if_any="aarch64 alpha avr32 mips ppc e2k x86"
+fast_unaligned_if_any="aarch64 ppc e2k x86"
+simd_align_16_if_any="altivec e2k neon sse"
simd_align_32_if_any="avx"
simd_align_64_if_any="avx512"
@@ -4927,6 +4933,9 @@ case "$arch" in
"Power Macintosh"|ppc*|powerpc*)
arch="ppc"
;;
+ e2k|elbrus)
+ arch="e2k"
+ ;;
s390|s390x)
arch="s390"
;;
@@ -5214,6 +5223,11 @@ elif enabled ppc; then
;;
esac
+elif enabled e2k; then
+
+ cpu="e2k"
+ cpuflags="-msse4.1 -mno-avx"
+
elif enabled sparc; then
case $cpu in
diff --git a/libavcodec/audiodsp.c b/libavcodec/audiodsp.c
index efcb0a8..36b8528 100644
--- a/libavcodec/audiodsp.c
+++ b/libavcodec/audiodsp.c
@@ -113,6 +113,8 @@ av_cold void ff_audiodsp_init(AudioDSPContext *c)
ff_audiodsp_init_arm(c);
if (ARCH_PPC)
ff_audiodsp_init_ppc(c);
+ if (ARCH_E2K)
+ ff_audiodsp_init_e2k(c);
if (ARCH_X86)
ff_audiodsp_init_x86(c);
}
diff --git a/libavcodec/audiodsp.h b/libavcodec/audiodsp.h
index aa6fa78..9c05e28 100644
--- a/libavcodec/audiodsp.h
+++ b/libavcodec/audiodsp.h
@@ -55,6 +55,7 @@ typedef struct AudioDSPContext {
void ff_audiodsp_init(AudioDSPContext *c);
void ff_audiodsp_init_arm(AudioDSPContext *c);
void ff_audiodsp_init_ppc(AudioDSPContext *c);
+void ff_audiodsp_init_e2k(AudioDSPContext *c);
void ff_audiodsp_init_x86(AudioDSPContext *c);
#endif /* AVCODEC_AUDIODSP_H */
diff --git a/libavcodec/blockdsp.c b/libavcodec/blockdsp.c
index c7efe7e..704c723 100644
--- a/libavcodec/blockdsp.c
+++ b/libavcodec/blockdsp.c
@@ -71,6 +71,8 @@ av_cold void ff_blockdsp_init(BlockDSPContext *c, AVCodecContext *avctx)
ff_blockdsp_init_arm(c);
if (ARCH_PPC)
ff_blockdsp_init_ppc(c);
+ if (ARCH_E2K)
+ ff_blockdsp_init_e2k(c);
if (ARCH_X86)
ff_blockdsp_init_x86(c, avctx);
if (ARCH_MIPS)
diff --git a/libavcodec/blockdsp.h b/libavcodec/blockdsp.h
index 26fc2ea..8eccb47 100644
--- a/libavcodec/blockdsp.h
+++ b/libavcodec/blockdsp.h
@@ -44,6 +44,7 @@ void ff_blockdsp_init(BlockDSPContext *c, AVCodecContext *avctx);
void ff_blockdsp_init_alpha(BlockDSPContext *c);
void ff_blockdsp_init_arm(BlockDSPContext *c);
void ff_blockdsp_init_ppc(BlockDSPContext *c);
+void ff_blockdsp_init_e2k(BlockDSPContext *c);
void ff_blockdsp_init_x86(BlockDSPContext *c, AVCodecContext *avctx);
void ff_blockdsp_init_mips(BlockDSPContext *c);
diff --git a/libavcodec/e2k/Makefile b/libavcodec/e2k/Makefile
new file mode 100644
index 0000000..59f3237
--- /dev/null
+++ b/libavcodec/e2k/Makefile
@@ -0,0 +1,32 @@
+# subsystems
+OBJS-$(CONFIG_AUDIODSP) += e2k/audiodsp.o
+OBJS-$(CONFIG_BLOCKDSP) += e2k/blockdsp.o
+OBJS-$(CONFIG_FFT) += e2k/fft_init.o e2k/fft.o
+OBJS-$(CONFIG_FDCTDSP) += e2k/fdctdsp.o
+OBJS-$(CONFIG_FMTCONVERT) += e2k/fmtconvert.o
+OBJS-$(CONFIG_H264CHROMA) += e2k/h264chroma.o
+OBJS-$(CONFIG_H264DSP) += e2k/h264dsp.o e2k/hpeldsp.o
+OBJS-$(CONFIG_H264QPEL) += e2k/h264qpel.o
+OBJS-$(CONFIG_HPELDSP) += e2k/hpeldsp.o
+OBJS-$(CONFIG_IDCTDSP) += e2k/idctdsp.o
+OBJS-$(CONFIG_LLVIDDSP) += e2k/lossless_videodsp.o
+OBJS-$(CONFIG_MDCT15) += e2k/mdct15.o
+OBJS-$(CONFIG_ME_CMP) += e2k/me_cmp.o
+OBJS-$(CONFIG_MPEGAUDIODSP) += e2k/mpegaudiodsp.o
+OBJS-$(CONFIG_MPEGVIDEO) += e2k/mpegvideo.o e2k/mpegvideodsp.o
+OBJS-$(CONFIG_MPEGVIDEOENC) += e2k/mpegvideoencdsp.o
+OBJS-$(CONFIG_PIXBLOCKDSP) += e2k/pixblockdsp.o
+OBJS-$(CONFIG_VC1DSP) += e2k/vc1dsp.o
+OBJS-$(CONFIG_VIDEODSP) += e2k/videodsp.o
+OBJS-$(CONFIG_VP3DSP) += e2k/vp3dsp.o
+OBJS-$(CONFIG_VP8DSP) += e2k/vp8dsp.o
+
+# decoders/encoders
+OBJS-$(CONFIG_HEVC_DECODER) += e2k/hevcdsp.o
+OBJS-$(CONFIG_LLAUDDSP) += e2k/lossless_audiodsp.o
+OBJS-$(CONFIG_SVQ1_ENCODER) += e2k/svq1enc.o
+OBJS-$(CONFIG_VORBIS_DECODER) += e2k/vorbisdsp.o
+OBJS-$(CONFIG_VP7_DECODER) += e2k/vp8dsp.o
+OBJS-$(CONFIG_VP9_DECODER) += e2k/vp9dsp.o
+OBJS-$(CONFIG_MPEG4_DECODER) += e2k/xvididct.o
+
diff --git a/libavcodec/e2k/audiodsp.c b/libavcodec/e2k/audiodsp.c
new file mode 100644
index 0000000..c2e4433
--- /dev/null
+++ b/libavcodec/e2k/audiodsp.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2021 Ilya Kurdyukov <jpegqs@gmail.com> for BaseALT, Ltd
+ * Copyright (c) 2007 Luca Barbato <lu_zero@gentoo.org>
+ *
+ * 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
+ */
+
+/**
+ * @file
+ * miscellaneous audio operations
+ */
+
+#include "config.h"
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/e2k/cpu.h"
+#include "libavutil/e2k/util_e2k.h"
+
+#include "libavcodec/audiodsp.h"
+
+static int32_t scalarproduct_int16_e2k(const int16_t *v1, const int16_t *v2, int order)
+{
+ int i;
+ vec_s16 vec1, vec2;
+ vec_s32 res = _mm_setzero_si128(), tmp;
+
+ PRAGMA_E2K("ivdep")
+ for (i = 0; i < order; i += 8) {
+ vec1 = VEC_LD(v1);
+ vec2 = VEC_LD(v2);
+ tmp = _mm_madd_epi16(vec1, vec2);
+ res = _mm_add_epi32(res, tmp);
+ v1 += 8;
+ v2 += 8;
+ }
+
+ res = _mm_hadd_epi32(res, res);
+ return _mm_extract_epi32(res, 0) + _mm_extract_epi32(res, 1);
+}
+
+av_cold void ff_audiodsp_init_e2k(AudioDSPContext *c)
+{
+ if (!E2K_BASE(av_get_cpu_flags()))
+ return;
+
+ c->scalarproduct_int16 = scalarproduct_int16_e2k;
+}
diff --git a/libavcodec/e2k/blockdsp.c b/libavcodec/e2k/blockdsp.c
new file mode 100644
index 0000000..f85dce1
--- /dev/null
+++ b/libavcodec/e2k/blockdsp.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2021 Ilya Kurdyukov <jpegqs@gmail.com> for BaseALT, Ltd
+ * Copyright (c) 2002 Brian Foley
+ * Copyright (c) 2002 Dieter Shirley
+ * Copyright (c) 2003-2004 Romain Dolbeau <romain@dolbeau.org>
+ *
+ * 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 <string.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/mem.h"
+#include "libavutil/e2k/cpu.h"
+#include "libavutil/e2k/util_e2k.h"
+
+#include "libavcodec/blockdsp.h"
+
+static void clear_block_e2k(int16_t *block)
+{
+ LOAD_ZERO;
+ VEC_ST(block, zerov);
+ VEC_ST(block + 8, zerov);
+ VEC_ST(block + 8 * 2, zerov);
+ VEC_ST(block + 8 * 3, zerov);
+ VEC_ST(block + 8 * 4, zerov);
+ VEC_ST(block + 8 * 5, zerov);
+ VEC_ST(block + 8 * 6, zerov);
+ VEC_ST(block + 8 * 7, zerov);
+}
+
+static void clear_blocks_e2k(int16_t *blocks)
+{
+ int i;
+ LOAD_ZERO;
+ for (i = 0; i < 6; i++, blocks += 64) {
+ VEC_ST(blocks, zerov);
+ VEC_ST(blocks + 8, zerov);
+ VEC_ST(blocks + 8 * 2, zerov);
+ VEC_ST(blocks + 8 * 3, zerov);
+ VEC_ST(blocks + 8 * 4, zerov);
+ VEC_ST(blocks + 8 * 5, zerov);
+ VEC_ST(blocks + 8 * 6, zerov);
+ VEC_ST(blocks + 8 * 7, zerov);
+ }
+}
+
+av_cold void ff_blockdsp_init_e2k(BlockDSPContext *c)
+{
+ if (!E2K_BASE(av_get_cpu_flags()))
+ return;
+
+ c->clear_block = clear_block_e2k;
+ c->clear_blocks = clear_blocks_e2k;
+}
diff --git a/libavcodec/e2k/dctdsp.h b/libavcodec/e2k/dctdsp.h
new file mode 100644
index 0000000..d1ba599
--- /dev/null
+++ b/libavcodec/e2k/dctdsp.h
@@ -0,0 +1,29 @@
+/*
+ * 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
+ */
+
+#ifndef AVCODEC_E2K_DCTDSP_H
+#define AVCODEC_E2K_DCTDSP_H
+
+#include <stdint.h>
+
+void ff_fdct_e2k(int16_t *block);
+void ff_simple_idct_e2k(int16_t *block);
+void ff_fast_idct_e2k(int16_t *block);
+void ff_xvid_idct_e2k(int16_t *block);
+
+#endif /* AVCODEC_E2K_DCTDSP_H */
diff --git a/libavcodec/e2k/fdctdsp.c b/libavcodec/e2k/fdctdsp.c
new file mode 100644
index 0000000..568a67f
--- /dev/null
+++ b/libavcodec/e2k/fdctdsp.c
@@ -0,0 +1,389 @@
+/*
+ * Copyright (C) 2021 Ilya Kurdyukov <jpegqs@gmail.com> for BaseALT, Ltd
+ * Copyright (C) 2003 James Klicman <james@klicman.org>
+ *
+ * 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 "libavutil/e2k/cpu.h"
+#include "libavutil/e2k/util_e2k.h"
+
+#include "libavcodec/fdctdsp.h"
+
+#include "dctdsp.h"
+
+#define C1 0.98078528040323044912618224 /* cos(1 * PI / 16) */
+#define C2 0.92387953251128675612818319 /* cos(2 * PI / 16) */
+#define C3 0.83146961230254523707878838 /* cos(3 * PI / 16) */
+#define C4 0.70710678118654752440084436 /* cos(4 * PI / 16) */
+#define C5 0.55557023301960222474283081 /* cos(5 * PI / 16) */
+#define C6 0.38268343236508977172845998 /* cos(6 * PI / 16) */
+#define C7 0.19509032201612826784828487 /* cos(7 * PI / 16) */
+
+#define W0 -(2 * C2)
+#define W1 (2 * C6)
+#define W2 (M_SQRT2 * C6)
+#define W3 (M_SQRT2 * C3)
+#define W4 (M_SQRT2 * (-C1 + C3 + C5 - C7))
+#define W5 (M_SQRT2 * (C1 + C3 - C5 + C7))
+#define W6 (M_SQRT2 * (C1 + C3 + C5 - C7))
+#define W7 (M_SQRT2 * (C1 + C3 - C5 - C7))
+#define W8 (M_SQRT2 * (C7 - C3))
+#define W9 (M_SQRT2 * (-C1 - C3))
+#define WA (M_SQRT2 * (-C3 - C5))
+#define WB (M_SQRT2 * (C5 - C3))
+
+#define LD_W0 _mm_set1_ps(W0)
+#define LD_W1 _mm_set1_ps(W1)
+#define LD_W2 _mm_set1_ps(W2)
+#define LD_W3 _mm_set1_ps(W3)
+#define LD_W4 _mm_set1_ps(W4)
+#define LD_W5 _mm_set1_ps(W5)
+#define LD_W6 _mm_set1_ps(W6)
+#define LD_W7 _mm_set1_ps(W7)
+#define LD_W8 _mm_set1_ps(W8)
+#define LD_W9 _mm_set1_ps(W9)
+#define LD_WA _mm_set1_ps(WA)
+#define LD_WB _mm_set1_ps(WB)
+
+#define _mm_madd_ps(a, b, c) _mm_add_ps(_mm_mul_ps(a, b), c)
+
+#define FDCTROW(b0, b1, b2, b3, b4, b5, b6, b7) /* {{{ */ \
+ x0 = _mm_add_ps(b0, b7); /* x0 = b0 + b7; */ \
+ x7 = _mm_sub_ps(b0, b7); /* x7 = b0 - b7; */ \
+ x1 = _mm_add_ps(b1, b6); /* x1 = b1 + b6; */ \
+ x6 = _mm_sub_ps(b1, b6); /* x6 = b1 - b6; */ \
+ x2 = _mm_add_ps(b2, b5); /* x2 = b2 + b5; */ \
+ x5 = _mm_sub_ps(b2, b5); /* x5 = b2 - b5; */ \
+ x3 = _mm_add_ps(b3, b4); /* x3 = b3 + b4; */ \
+ x4 = _mm_sub_ps(b3, b4); /* x4 = b3 - b4; */ \
+ \
+ b7 = _mm_add_ps(x0, x3); /* b7 = x0 + x3; */ \
+ b1 = _mm_add_ps(x1, x2); /* b1 = x1 + x2; */ \
+ b0 = _mm_add_ps(b7, b1); /* b0 = b7 + b1; */ \
+ b4 = _mm_sub_ps(b7, b1); /* b4 = b7 - b1; */ \
+ \
+ b2 = _mm_sub_ps(x0, x3); /* b2 = x0 - x3; */ \
+ b6 = _mm_sub_ps(x1, x2); /* b6 = x1 - x2; */ \
+ b5 = _mm_add_ps(b6, b2); /* b5 = b6 + b2; */ \
+ cnst = LD_W2; \
+ b5 = _mm_mul_ps(cnst, b5); /* b5 = b5 * W2; */ \
+ cnst = LD_W1; \
+ b2 = _mm_madd_ps(cnst, b2, b5); /* b2 = b5 + b2 * W1; */ \
+ cnst = LD_W0; \
+ b6 = _mm_madd_ps(cnst, b6, b5); /* b6 = b5 + b6 * W0; */ \
+ \
+ x0 = _mm_add_ps(x4, x7); /* x0 = x4 + x7; */ \
+ x1 = _mm_add_ps(x5, x6); /* x1 = x5 + x6; */ \
+ x2 = _mm_add_ps(x4, x6); /* x2 = x4 + x6; */ \
+ x3 = _mm_add_ps(x5, x7); /* x3 = x5 + x7; */ \
+ x8 = _mm_add_ps(x2, x3); /* x8 = x2 + x3; */ \
+ cnst = LD_W3; \
+ x8 = _mm_mul_ps(cnst, x8); /* x8 = x8 * W3; */ \
+ \
+ cnst = LD_W8; \
+ x0 = _mm_mul_ps(cnst, x0); /* x0 *= W8; */ \
+ cnst = LD_W9; \
+ x1 = _mm_mul_ps(cnst, x1); /* x1 *= W9; */ \
+ cnst = LD_WA; \
+ x2 = _mm_madd_ps(cnst, x2, x8); /* x2 = x2 * WA + x8; */ \
+ cnst = LD_WB; \
+ x3 = _mm_madd_ps(cnst, x3, x8); /* x3 = x3 * WB + x8; */ \
+ \
+ cnst = LD_W4; \
+ b7 = _mm_madd_ps(cnst, x4, x0); /* b7 = x4 * W4 + x0; */ \
+ cnst = LD_W5; \
+ b5 = _mm_madd_ps(cnst, x5, x1); /* b5 = x5 * W5 + x1; */ \
+ cnst = LD_W6; \
+ b3 = _mm_madd_ps(cnst, x6, x1); /* b3 = x6 * W6 + x1; */ \
+ cnst = LD_W7; \
+ b1 = _mm_madd_ps(cnst, x7, x0); /* b1 = x7 * W7 + x0; */ \
+ \
+ b7 = _mm_add_ps(b7, x2); /* b7 = b7 + x2; */ \
+ b5 = _mm_add_ps(b5, x3); /* b5 = b5 + x3; */ \
+ b3 = _mm_add_ps(b3, x2); /* b3 = b3 + x2; */ \
+ b1 = _mm_add_ps(b1, x3) /* b1 = b1 + x3; */ \
+ /* }}} */
+
+#define FDCTCOL(b0, b1, b2, b3, b4, b5, b6, b7) /* {{{ */ \
+ x0 = _mm_add_ps(b0, b7); /* x0 = b0 + b7; */ \
+ x7 = _mm_sub_ps(b0, b7); /* x7 = b0 - b7; */ \
+ x1 = _mm_add_ps(b1, b6); /* x1 = b1 + b6; */ \
+ x6 = _mm_sub_ps(b1, b6); /* x6 = b1 - b6; */ \
+ x2 = _mm_add_ps(b2, b5); /* x2 = b2 + b5; */ \
+ x5 = _mm_sub_ps(b2, b5); /* x5 = b2 - b5; */ \
+ x3 = _mm_add_ps(b3, b4); /* x3 = b3 + b4; */ \
+ x4 = _mm_sub_ps(b3, b4); /* x4 = b3 - b4; */ \
+ \
+ b7 = _mm_add_ps(x0, x3); /* b7 = x0 + x3; */ \
+ b1 = _mm_add_ps(x1, x2); /* b1 = x1 + x2; */ \
+ b0 = _mm_add_ps(b7, b1); /* b0 = b7 + b1; */ \
+ b4 = _mm_sub_ps(b7, b1); /* b4 = b7 - b1; */ \
+ \
+ b2 = _mm_sub_ps(x0, x3); /* b2 = x0 - x3; */ \
+ b6 = _mm_sub_ps(x1, x2); /* b6 = x1 - x2; */ \
+ b5 = _mm_add_ps(b6, b2); /* b5 = b6 + b2; */ \
+ cnst = LD_W2; \
+ b5 = _mm_mul_ps(cnst, b5); /* b5 = b5 * W2; */ \
+ cnst = LD_W1; \
+ b2 = _mm_madd_ps(cnst, b2, b5); /* b2 = b5 + b2 * W1; */ \
+ cnst = LD_W0; \
+ b6 = _mm_madd_ps(cnst, b6, b5); /* b6 = b5 + b6 * W0; */ \
+ \
+ x0 = _mm_add_ps(x4, x7); /* x0 = x4 + x7; */ \
+ x1 = _mm_add_ps(x5, x6); /* x1 = x5 + x6; */ \
+ x2 = _mm_add_ps(x4, x6); /* x2 = x4 + x6; */ \
+ x3 = _mm_add_ps(x5, x7); /* x3 = x5 + x7; */ \
+ x8 = _mm_add_ps(x2, x3); /* x8 = x2 + x3; */ \
+ cnst = LD_W3; \
+ x8 = _mm_mul_ps(cnst, x8); /* x8 = x8 * W3; */ \
+ \
+ cnst = LD_W8; \
+ x0 = _mm_mul_ps(cnst, x0); /* x0 *= W8; */ \
+ cnst = LD_W9; \
+ x1 = _mm_mul_ps(cnst, x1); /* x1 *= W9; */ \
+ cnst = LD_WA; \
+ x2 = _mm_madd_ps(cnst, x2, x8); /* x2 = x2 * WA + x8; */ \
+ cnst = LD_WB; \
+ x3 = _mm_madd_ps(cnst, x3, x8); /* x3 = x3 * WB + x8; */ \
+ \
+ cnst = LD_W4; \
+ b7 = _mm_madd_ps(cnst, x4, x0); /* b7 = x4 * W4 + x0; */ \
+ cnst = LD_W5; \
+ b5 = _mm_madd_ps(cnst, x5, x1); /* b5 = x5 * W5 + x1; */ \
+ cnst = LD_W6; \
+ b3 = _mm_madd_ps(cnst, x6, x1); /* b3 = x6 * W6 + x1; */ \
+ cnst = LD_W7; \
+ b1 = _mm_madd_ps(cnst, x7, x0); /* b1 = x7 * W7 + x0; */ \
+ \
+ b7 = _mm_add_ps(b7, x2); /* b7 += x2; */ \
+ b5 = _mm_add_ps(b5, x3); /* b5 += x3; */ \
+ b3 = _mm_add_ps(b3, x2); /* b3 += x2; */ \
+ b1 = _mm_add_ps(b1, x3) /* b1 += x3; */ \
+ /* }}} */
+
+/* two dimensional discrete cosine transform */
+void ff_fdct_e2k(int16_t *block)
+{
+ vec_f b00, b10, b20, b30, b40, b50, b60, b70;
+ vec_f b01, b11, b21, b31, b41, b51, b61, b71;
+ vec_f cnst;
+ vec_f x0, x1, x2, x3, x4, x5, x6, x7, x8;
+ vec_s16 a0, a1, a2, a3, a4, a5, a6, a7;
+ vec_s16 z0, z1, z2, z3, z4, z5, z6, z7;
+
+ a0 = VEC_LD(block + 8 * 0);
+ a4 = VEC_LD(block + 8 * 4);
+ a1 = VEC_LD(block + 8 * 1);
+ a5 = VEC_LD(block + 8 * 5);
+ a2 = VEC_LD(block + 8 * 2);
+ a6 = VEC_LD(block + 8 * 6);
+ a3 = VEC_LD(block + 8 * 3);
+ a7 = VEC_LD(block + 8 * 7);
+
+ TRANSPOSE8(a0, a1, a2, a3, a4, a5, a6, a7);
+
+ /* Some of the initial calculations can be done as vector short
+ * before conversion to vec_f. The following code section
+ * takes advantage of this. */
+
+ /* fdct rows {{{ */
+ z0 = _mm_add_epi16(a0, a7);
+ z7 = _mm_sub_epi16(a0, a7);
+ z1 = _mm_add_epi16(a1, a6);
+ z6 = _mm_sub_epi16(a1, a6);
+ z2 = _mm_add_epi16(a2, a5);
+ z5 = _mm_sub_epi16(a2, a5);
+ z3 = _mm_add_epi16(a3, a4);
+ z4 = _mm_sub_epi16(a3, a4);
+
+#define CTF0(n) \
+ b##n##0 = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpacklo_epi16(a##n, a##n), 16));\
+ b##n##1 = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpackhi_epi16(a##n, a##n), 16));
+
+ a7 = _mm_add_epi16(z0, z3);
+ a1 = _mm_add_epi16(z1, z2);
+ a0 = _mm_add_epi16(a7, a1);
+ a4 = _mm_sub_epi16(a7, a1);
+ CTF0(0);
+ CTF0(4);
+
+ a2 = _mm_sub_epi16(z0, z3);
+ a6 = _mm_sub_epi16(z1, z2);
+ CTF0(2);
+ CTF0(6);
+
+#undef CTF0
+
+ x0 = _mm_add_ps(b60, b20);
+ x1 = _mm_add_ps(b61, b21);
+
+ cnst = LD_W2;
+ x0 = _mm_mul_ps(cnst, x0);
+ x1 = _mm_mul_ps(cnst, x1);
+ cnst = LD_W1;
+ b20 = _mm_madd_ps(cnst, b20, x0);
+ b21 = _mm_madd_ps(cnst, b21, x1);
+ cnst = LD_W0;
+ b60 = _mm_madd_ps(cnst, b60, x0);
+ b61 = _mm_madd_ps(cnst, b61, x1);
+
+#define CTFX(x, b) \
+ b##0 = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpacklo_epi16(x, x), 16)); \
+ b##1 = _mm_cvtepi32_ps(_mm_srai_epi32(_mm_unpackhi_epi16(x, x), 16));
+
+ CTFX(z4, b7);
+ CTFX(z5, b5);
+ CTFX(z6, b3);
+ CTFX(z7, b1);
+
+#undef CTFX
+
+ x0 = _mm_add_ps(b70, b10);
+ x1 = _mm_add_ps(b50, b30);
+ x2 = _mm_add_ps(b70, b30);
+ x3 = _mm_add_ps(b50, b10);
+ x8 = _mm_add_ps(x2, x3);
+ cnst = LD_W3;
+ x8 = _mm_mul_ps(cnst, x8);
+
+ cnst = LD_W8;
+ x0 = _mm_mul_ps(cnst, x0);
+ cnst = LD_W9;
+ x1 = _mm_mul_ps(cnst, x1);
+ cnst = LD_WA;
+ x2 = _mm_madd_ps(cnst, x2, x8);
+ cnst = LD_WB;
+ x3 = _mm_madd_ps(cnst, x3, x8);
+
+ cnst = LD_W4;
+ b70 = _mm_madd_ps(cnst, b70, x0);
+ cnst = LD_W5;
+ b50 = _mm_madd_ps(cnst, b50, x1);
+ cnst = LD_W6;
+ b30 = _mm_madd_ps(cnst, b30, x1);
+ cnst = LD_W7;
+ b10 = _mm_madd_ps(cnst, b10, x0);
+
+ b70 = _mm_add_ps(b70, x2);
+ b50 = _mm_add_ps(b50, x3);
+ b30 = _mm_add_ps(b30, x2);
+ b10 = _mm_add_ps(b10, x3);
+
+ x0 = _mm_add_ps(b71, b11);
+ x1 = _mm_add_ps(b51, b31);
+ x2 = _mm_add_ps(b71, b31);
+ x3 = _mm_add_ps(b51, b11);
+ x8 = _mm_add_ps(x2, x3);
+ cnst = LD_W3;
+ x8 = _mm_mul_ps(cnst, x8);
+
+ cnst = LD_W8;
+ x0 = _mm_mul_ps(cnst, x0);
+ cnst = LD_W9;
+ x1 = _mm_mul_ps(cnst, x1);
+ cnst = LD_WA;
+ x2 = _mm_madd_ps(cnst, x2, x8);
+ cnst = LD_WB;
+ x3 = _mm_madd_ps(cnst, x3, x8);
+
+ cnst = LD_W4;
+ b71 = _mm_madd_ps(cnst, b71, x0);
+ cnst = LD_W5;
+ b51 = _mm_madd_ps(cnst, b51, x1);
+ cnst = LD_W6;
+ b31 = _mm_madd_ps(cnst, b31, x1);
+ cnst = LD_W7;
+ b11 = _mm_madd_ps(cnst, b11, x0);
+
+ b71 = _mm_add_ps(b71, x2);
+ b51 = _mm_add_ps(b51, x3);
+ b31 = _mm_add_ps(b31, x2);
+ b11 = _mm_add_ps(b11, x3);
+ /* }}} */
+
+ /* 8x8 matrix transpose (vec_f[8][2]) {{{ */
+ x0 = _mm_unpacklo_ps(b00, b10);
+ x1 = _mm_unpackhi_ps(b00, b10);
+ x2 = _mm_unpacklo_ps(b20, b30);
+ x3 = _mm_unpackhi_ps(b20, b30);
+ b00 = _mm_unpacklo_ps2(x0, x2);
+ b10 = _mm_unpackhi_ps2(x0, x2);
+ b20 = _mm_unpacklo_ps2(x1, x3);
+ b30 = _mm_unpackhi_ps2(x1, x3);
+
+ x4 = _mm_unpacklo_ps(b41, b51);
+ x5 = _mm_unpackhi_ps(b41, b51);
+ x6 = _mm_unpacklo_ps(b61, b71);
+ x7 = _mm_unpackhi_ps(b61, b71);
+ b41 = _mm_unpacklo_ps2(x4, x6);
+ b51 = _mm_unpackhi_ps2(x4, x6);
+ b61 = _mm_unpacklo_ps2(x5, x7);
+ b71 = _mm_unpackhi_ps2(x5, x7);
+
+ x0 = _mm_unpacklo_ps(b01, b11);
+ x1 = _mm_unpackhi_ps(b01, b11);
+ x2 = _mm_unpacklo_ps(b21, b31);
+ x3 = _mm_unpackhi_ps(b21, b31);
+ x4 = _mm_unpacklo_ps(b40, b50);
+ x5 = _mm_unpackhi_ps(b40, b50);
+ x6 = _mm_unpacklo_ps(b60, b70);
+ x7 = _mm_unpackhi_ps(b60, b70);
+ b40 = _mm_unpacklo_ps2(x0, x2);
+ b50 = _mm_unpackhi_ps2(x0, x2);
+ b60 = _mm_unpacklo_ps2(x1, x3);
+ b70 = _mm_unpackhi_ps2(x1, x3);
+ b01 = _mm_unpacklo_ps2(x4, x6);
+ b11 = _mm_unpackhi_ps2(x4, x6);
+ b21 = _mm_unpacklo_ps2(x5, x7);
+ b31 = _mm_unpackhi_ps2(x5, x7);
+ /* }}} */
+
+ FDCTCOL(b00, b10, b20, b30, b40, b50, b60, b70);
+ FDCTCOL(b01, b11, b21, b31, b41, b51, b61, b71);
+
+ /* round, convert back to short */
+#define CTS(n) \
+ a##n = _mm_packs_epi32(_mm_cvtps_epi32(b##n##0), _mm_cvtps_epi32(b##n##1)); \
+ VEC_ST(block + 8 * n, a##n)
+
+ CTS(0); CTS(1); CTS(2); CTS(3);
+ CTS(4); CTS(5); CTS(6); CTS(7);
+
+#undef CTS
+}
+
+av_cold void ff_fdctdsp_init_e2k(FDCTDSPContext *c, AVCodecContext *avctx,
+ unsigned high_bit_depth)
+{
+ if (!E2K_BASE(av_get_cpu_flags()))
+ return;
+
+ // !checkasm
+ // libavcodec/tests/dct
+
+ if (!high_bit_depth) {
+ if (avctx->dct_algo == FF_DCT_AUTO ||
+ avctx->dct_algo == FF_DCT_ALTIVEC) {
+ c->fdct = ff_fdct_e2k;
+ }
+ }
+}
diff --git a/libavcodec/e2k/fft.c b/libavcodec/e2k/fft.c
new file mode 100644
index 0000000..5b58202
--- /dev/null
+++ b/libavcodec/e2k/fft.c
@@ -0,0 +1,1043 @@
+/*
+ * FFT transform
+ * Copyright (C) 2021 Ilya Kurdyukov <jpegqs@gmail.com> for BaseALT, Ltd
+ * Copyright (c) 2014 Rong Yan
+ * Copyright (c) 2009 Loren Merritt
+ *
+ * This algorithm (though not any of the implementation details) is
+ * based on libdjbfft by D. J. Bernstein.
+ *
+ * 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/cpu.h"
+#include "libavutil/e2k/util_e2k.h"
+#include "libavcodec/fft.h"
+#include "libavcodec/fft-internal.h"
+#include "fft.h"
+
+#define _mm_madd_ps(a, b, c) _mm_add_ps(_mm_mul_ps(a, b), c)
+#define _mm_msub_ps(a, b, c) _mm_sub_ps(_mm_mul_ps(a, b), c)
+#define _mm_nmsub_ps(a, b, c) _mm_sub_ps(c, _mm_mul_ps(a, b))
+
+static av_always_inline
+void pass_e2k_interleave(FFTComplex *z, const FFTSample *wre, unsigned int n)
+{
+ int i1 = n * 4, i2 = n * 8, i3 = n * 12;
+ FFTSample *out = (FFTSample*)z;
+ const FFTSample *wim = wre + n * 2;
+ vec_f vz0, vzo1, vzo2, vzo3;
+ vec_f x0, x1, x2, x3;
+ vec_f x4, x5, x6, x7;
+ vec_f x8, x9, x10, x11;
+ vec_f x12, x13, x14, x15;
+ vec_f x16, x17, x18, x19;
+ vec_f x20, x21, x22, x23;
+ vec_f vz0plus1, vzo1plus1, vzo2plus1, vzo3plus1;
+ vec_f y0, y1, y2, y3;
+ vec_f y4, y5, y8, y9;
+ vec_f y10, y13, y14, y15;
+ vec_f y16, y17, y18, y19;
+ vec_f y20, y21, y22, y23;
+ vec_f wr1, wi1, wr0, wi0;
+ vec_f wr2, wi2, wr3, wi3;
+ vec_f xmulwi0, xmulwi1, ymulwi2, ymulwi3;
+
+ n = n - 2;
+ vzo2 = _mm_loadu_ps(out + i2); // zo2.r zo2.i z(o2+1).r z(o2+1).i
+ vzo2plus1 = _mm_loadu_ps(out + i2 + 4);
+ vzo3 = _mm_loadu_ps(out + i3); // zo3.r zo3.i z(o3+1).r z(o3+1).i
+ vzo3plus1 = _mm_loadu_ps(out + i3 + 4);
+ vz0 = _mm_loadu_ps(out); // z0.r z0.i z1.r z1.i
+ vz0plus1 = _mm_loadu_ps(out + 4);
+ vzo1 = _mm_loadu_ps(out + i1); // zo1.r zo1.i z(o1+1).r z(o1+1).i
+ vzo1plus1 = _mm_loadu_ps(out + i1 + 4);
+
+ x0 = _mm_add_ps(vzo2, vzo3);
+ x1 = _mm_sub_ps(vzo2, vzo3);
+ y0 = _mm_add_ps(vzo2plus1, vzo3plus1);
+ y1 = _mm_sub_ps(vzo2plus1, vzo3plus1);
+
+ wr1 = _mm_set1_ps(wre[1]);
+ wi1 = _mm_set1_ps(wim[-1]);
+ wi2 = _mm_set1_ps(wim[-2]);