[FFmpeg-cvslog] avcodec: loongson optimize pixblockdsp with mmi
周晓勇
git at videolan.org
Wed Jul 22 15:00:05 CEST 2015
ffmpeg | branch: master | 周晓勇 <zhouxiaoyong at loongson.cn> | Wed Jul 22 15:10:38 2015 +0800| [3e35f8efa18d9b77bbdb16d9c61e387241a7bd83] | committer: Michael Niedermayer
avcodec: loongson optimize pixblockdsp with mmi
Signed-off-by: ZhouXiaoyong <zhouxiaoyong at loongson.cn>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3e35f8efa18d9b77bbdb16d9c61e387241a7bd83
---
libavcodec/mips/Makefile | 1 +
libavcodec/mips/pixblockdsp_init_mips.c | 16 +++++++
libavcodec/mips/pixblockdsp_mips.h | 6 +++
libavcodec/mips/pixblockdsp_mmi.c | 79 +++++++++++++++++++++++++++++++
4 files changed, 102 insertions(+)
diff --git a/libavcodec/mips/Makefile b/libavcodec/mips/Makefile
index da91608..1c4991a 100644
--- a/libavcodec/mips/Makefile
+++ b/libavcodec/mips/Makefile
@@ -68,3 +68,4 @@ MMI-OBJS-$(CONFIG_IDCTDSP) += mips/idctdsp_mmi.o \
mips/simple_idct_mmi.o
MMI-OBJS-$(CONFIG_MPEG4_DECODER) += mips/xvid_idct_mmi.o
MMI-OBJS-$(CONFIG_BLOCKDSP) += mips/blockdsp_mmi.o
+MMI-OBJS-$(CONFIG_PIXBLOCKDSP) += mips/pixblockdsp_mmi.o
diff --git a/libavcodec/mips/pixblockdsp_init_mips.c b/libavcodec/mips/pixblockdsp_init_mips.c
index 0f2fb15..1b3741e 100644
--- a/libavcodec/mips/pixblockdsp_init_mips.c
+++ b/libavcodec/mips/pixblockdsp_init_mips.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2015 Shivraj Patil (Shivraj.Patil at imgtec.com)
+ * Zhou Xiaoyong <zhouxiaoyong at loongson.cn>
*
* This file is part of FFmpeg.
*
@@ -44,10 +45,25 @@ static av_cold void pixblockdsp_init_msa(PixblockDSPContext *c,
}
#endif // #if HAVE_MSA
+#if HAVE_MMI
+static av_cold void pixblockdsp_init_mmi(PixblockDSPContext *c,
+ AVCodecContext *avctx, unsigned high_bit_depth)
+{
+ c->diff_pixels = ff_diff_pixels_mmi;
+
+ if (!high_bit_depth || avctx->codec_type != AVMEDIA_TYPE_VIDEO) {
+ c->get_pixels = ff_get_pixels_8_mmi;
+ }
+}
+#endif /* HAVE_MMI */
+
void ff_pixblockdsp_init_mips(PixblockDSPContext *c, AVCodecContext *avctx,
unsigned high_bit_depth)
{
#if HAVE_MSA
pixblockdsp_init_msa(c, avctx, high_bit_depth);
#endif // #if HAVE_MSA
+#if HAVE_MMI
+ pixblockdsp_init_mmi(c, avctx, high_bit_depth);
+#endif /* HAVE_MMI */
}
diff --git a/libavcodec/mips/pixblockdsp_mips.h b/libavcodec/mips/pixblockdsp_mips.h
index 3eee6e0..7f8cc96 100644
--- a/libavcodec/mips/pixblockdsp_mips.h
+++ b/libavcodec/mips/pixblockdsp_mips.h
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2015 Shivraj Patil (Shivraj.Patil at imgtec.com)
+ * Zhou Xiaoyong <zhouxiaoyong at loongson.cn>
*
* This file is part of FFmpeg.
*
@@ -30,4 +31,9 @@ void ff_get_pixels_16_msa(int16_t *restrict dst, const uint8_t *src,
void ff_get_pixels_8_msa(int16_t *restrict dst, const uint8_t *src,
ptrdiff_t stride);
+void ff_get_pixels_8_mmi(int16_t *av_restrict block, const uint8_t *pixels,
+ ptrdiff_t line_size);
+void ff_diff_pixels_mmi(int16_t *av_restrict block, const uint8_t *src1,
+ const uint8_t *src2, int stride);
+
#endif // #ifndef AVCODEC_MIPS_PIXBLOCKDSP_MIPS_H
diff --git a/libavcodec/mips/pixblockdsp_mmi.c b/libavcodec/mips/pixblockdsp_mmi.c
new file mode 100644
index 0000000..30631d8
--- /dev/null
+++ b/libavcodec/mips/pixblockdsp_mmi.c
@@ -0,0 +1,79 @@
+/*
+ * Loongson SIMD optimized pixblockdsp
+ *
+ * Copyright (c) 2015 Loongson Technology Corporation Limited
+ * Copyright (c) 2015 Zhou Xiaoyong <zhouxiaoyong at loongson.cn>
+ *
+ * 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 "pixblockdsp_mips.h"
+
+void ff_get_pixels_8_mmi(int16_t *av_restrict block, const uint8_t *pixels,
+ ptrdiff_t line_size)
+{
+ __asm__ volatile (
+ "move $8, $0 \n\t"
+ "xor $f0, $f0, $f0 \n\t"
+ "1: \n\t"
+ "gsldlc1 $f2, 7(%1) \n\t"
+ "gsldrc1 $f2, 0(%1) \n\t"
+ "punpcklbh $f4, $f2, $f0 \n\t"
+ "punpckhbh $f6, $f2, $f0 \n\t"
+ "gssdxc1 $f4, 0(%0, $8) \n\t"
+ "gssdxc1 $f6, 8(%0, $8) \n\t"
+ "daddiu $8, $8, 16 \n\t"
+ "daddu %1, %1, %2 \n\t"
+ "daddi %3, %3, -1 \n\t"
+ "bnez %3, 1b \n\t"
+ ::"r"((uint8_t *)block),"r"(pixels),"r"(line_size),"r"(8)
+ : "$8","memory"
+ );
+}
+
+void ff_diff_pixels_mmi(int16_t *av_restrict block, const uint8_t *src1,
+ const uint8_t *src2, int stride)
+{
+ __asm__ volatile (
+ "dli $2, 8 \n\t"
+ "xor $f14, $f14, $f14 \n\t"
+ "1: \n\t"
+ "gsldlc1 $f0, 7(%1) \n\t"
+ "gsldrc1 $f0, 0(%1) \n\t"
+ "or $f2, $f0, $f0 \n\t"
+ "gsldlc1 $f4, 7(%2) \n\t"
+ "gsldrc1 $f4, 0(%2) \n\t"
+ "or $f6, $f4, $f4 \n\t"
+ "punpcklbh $f0, $f0, $f14 \n\t"
+ "punpckhbh $f2, $f2, $f14 \n\t"
+ "punpcklbh $f4, $f4, $f14 \n\t"
+ "punpckhbh $f6, $f6, $f14 \n\t"
+ "psubh $f0, $f0, $f4 \n\t"
+ "psubh $f2, $f2, $f6 \n\t"
+ "gssdlc1 $f0, 7(%0) \n\t"
+ "gssdrc1 $f0, 0(%0) \n\t"
+ "gssdlc1 $f2, 15(%0) \n\t"
+ "gssdrc1 $f2, 8(%0) \n\t"
+ "daddi %0, %0, 16 \n\t"
+ "daddu %1, %1, %3 \n\t"
+ "daddu %2, %2, %3 \n\t"
+ "daddi $2, $2, -1 \n\t"
+ "bgtz $2, 1b \n\t"
+ ::"r"(block),"r"(src1),"r"(src2),"r"(stride)
+ : "$2","memory"
+ );
+}
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