avcodec: [loongarch] Optimize h264qpel with LASX.

./ffmpeg -i ../1_h264_1080p_30fps_3Mbps.mp4 -f rawvideo -y /dev/null -an
before:183
after :225

Change-Id: I7c7d2f34cd82ef728aab5ce8f6bfb46dd81f0da4
Reviewed-by: Shiyou Yin <yinshiyou-hf@loongson.cn>
Reviewed-by: guxiwei <guxiwei-hf@loongson.cn>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

1 files changed, 98 insertions, 0 deletions

diff --git a/libavcodec/loongarch/h264qpel_init_loongarch.c b/libavcodec/loongarch/h264qpel_init_loongarch.c
new file mode 100644
index 0000000000..969c9c376c
--- /dev/null
+++ b/libavcodec/loongarch/h264qpel_init_loongarch.c
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2020 Loongson Technology Corporation Limited
+ * Contributed by Shiyou Yin <yinshiyou-hf@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 "h264qpel_lasx.h"
+#include "libavutil/attributes.h"
+#include "libavutil/loongarch/cpu.h"
+#include "libavcodec/h264qpel.h"
+
+av_cold void ff_h264qpel_init_loongarch(H264QpelContext *c, int bit_depth)
+{
+    int cpu_flags = av_get_cpu_flags();
+    if (have_lasx(cpu_flags)) {
+        if (8 == bit_depth) {
+            c->put_h264_qpel_pixels_tab[0][0]  = ff_put_h264_qpel16_mc00_lasx;
+            c->put_h264_qpel_pixels_tab[0][1]  = ff_put_h264_qpel16_mc10_lasx;
+            c->put_h264_qpel_pixels_tab[0][2]  = ff_put_h264_qpel16_mc20_lasx;
+            c->put_h264_qpel_pixels_tab[0][3]  = ff_put_h264_qpel16_mc30_lasx;
+            c->put_h264_qpel_pixels_tab[0][4]  = ff_put_h264_qpel16_mc01_lasx;
+            c->put_h264_qpel_pixels_tab[0][5]  = ff_put_h264_qpel16_mc11_lasx;
+
+            c->put_h264_qpel_pixels_tab[0][6]  = ff_put_h264_qpel16_mc21_lasx;
+            c->put_h264_qpel_pixels_tab[0][7]  = ff_put_h264_qpel16_mc31_lasx;
+            c->put_h264_qpel_pixels_tab[0][8]  = ff_put_h264_qpel16_mc02_lasx;
+            c->put_h264_qpel_pixels_tab[0][9]  = ff_put_h264_qpel16_mc12_lasx;
+            c->put_h264_qpel_pixels_tab[0][10] = ff_put_h264_qpel16_mc22_lasx;
+            c->put_h264_qpel_pixels_tab[0][11] = ff_put_h264_qpel16_mc32_lasx;
+            c->put_h264_qpel_pixels_tab[0][12] = ff_put_h264_qpel16_mc03_lasx;
+            c->put_h264_qpel_pixels_tab[0][13] = ff_put_h264_qpel16_mc13_lasx;
+            c->put_h264_qpel_pixels_tab[0][14] = ff_put_h264_qpel16_mc23_lasx;
+            c->put_h264_qpel_pixels_tab[0][15] = ff_put_h264_qpel16_mc33_lasx;
+            c->avg_h264_qpel_pixels_tab[0][0]  = ff_avg_h264_qpel16_mc00_lasx;
+            c->avg_h264_qpel_pixels_tab[0][1]  = ff_avg_h264_qpel16_mc10_lasx;
+            c->avg_h264_qpel_pixels_tab[0][2]  = ff_avg_h264_qpel16_mc20_lasx;
+            c->avg_h264_qpel_pixels_tab[0][3]  = ff_avg_h264_qpel16_mc30_lasx;
+            c->avg_h264_qpel_pixels_tab[0][4]  = ff_avg_h264_qpel16_mc01_lasx;
+            c->avg_h264_qpel_pixels_tab[0][5]  = ff_avg_h264_qpel16_mc11_lasx;
+            c->avg_h264_qpel_pixels_tab[0][6]  = ff_avg_h264_qpel16_mc21_lasx;
+            c->avg_h264_qpel_pixels_tab[0][7]  = ff_avg_h264_qpel16_mc31_lasx;
+            c->avg_h264_qpel_pixels_tab[0][8]  = ff_avg_h264_qpel16_mc02_lasx;
+            c->avg_h264_qpel_pixels_tab[0][9]  = ff_avg_h264_qpel16_mc12_lasx;
+            c->avg_h264_qpel_pixels_tab[0][10] = ff_avg_h264_qpel16_mc22_lasx;
+            c->avg_h264_qpel_pixels_tab[0][11] = ff_avg_h264_qpel16_mc32_lasx;
+            c->avg_h264_qpel_pixels_tab[0][12] = ff_avg_h264_qpel16_mc03_lasx;
+            c->avg_h264_qpel_pixels_tab[0][13] = ff_avg_h264_qpel16_mc13_lasx;
+            c->avg_h264_qpel_pixels_tab[0][14] = ff_avg_h264_qpel16_mc23_lasx;
+            c->avg_h264_qpel_pixels_tab[0][15] = ff_avg_h264_qpel16_mc33_lasx;
+
+            c->put_h264_qpel_pixels_tab[1][0]  = ff_put_h264_qpel8_mc00_lasx;
+            c->put_h264_qpel_pixels_tab[1][1]  = ff_put_h264_qpel8_mc10_lasx;
+            c->put_h264_qpel_pixels_tab[1][2]  = ff_put_h264_qpel8_mc20_lasx;
+            c->put_h264_qpel_pixels_tab[1][3]  = ff_put_h264_qpel8_mc30_lasx;
+            c->put_h264_qpel_pixels_tab[1][4]  = ff_put_h264_qpel8_mc01_lasx;
+            c->put_h264_qpel_pixels_tab[1][5]  = ff_put_h264_qpel8_mc11_lasx;
+            c->put_h264_qpel_pixels_tab[1][6]  = ff_put_h264_qpel8_mc21_lasx;
+            c->put_h264_qpel_pixels_tab[1][7]  = ff_put_h264_qpel8_mc31_lasx;
+            c->put_h264_qpel_pixels_tab[1][8]  = ff_put_h264_qpel8_mc02_lasx;
+            c->put_h264_qpel_pixels_tab[1][9]  = ff_put_h264_qpel8_mc12_lasx;
+            c->put_h264_qpel_pixels_tab[1][10] = ff_put_h264_qpel8_mc22_lasx;
+            c->put_h264_qpel_pixels_tab[1][11] = ff_put_h264_qpel8_mc32_lasx;
+            c->put_h264_qpel_pixels_tab[1][12] = ff_put_h264_qpel8_mc03_lasx;
+            c->put_h264_qpel_pixels_tab[1][13] = ff_put_h264_qpel8_mc13_lasx;
+            c->put_h264_qpel_pixels_tab[1][14] = ff_put_h264_qpel8_mc23_lasx;
+            c->put_h264_qpel_pixels_tab[1][15] = ff_put_h264_qpel8_mc33_lasx;
+            c->avg_h264_qpel_pixels_tab[1][0]  = ff_avg_h264_qpel8_mc00_lasx;
+            c->avg_h264_qpel_pixels_tab[1][1]  = ff_avg_h264_qpel8_mc10_lasx;
+            c->avg_h264_qpel_pixels_tab[1][2]  = ff_avg_h264_qpel8_mc20_lasx;
+            c->avg_h264_qpel_pixels_tab[1][3]  = ff_avg_h264_qpel8_mc30_lasx;
+            c->avg_h264_qpel_pixels_tab[1][5]  = ff_avg_h264_qpel8_mc11_lasx;
+            c->avg_h264_qpel_pixels_tab[1][6]  = ff_avg_h264_qpel8_mc21_lasx;
+            c->avg_h264_qpel_pixels_tab[1][7]  = ff_avg_h264_qpel8_mc31_lasx;
+            c->avg_h264_qpel_pixels_tab[1][8]  = ff_avg_h264_qpel8_mc02_lasx;
+            c->avg_h264_qpel_pixels_tab[1][9]  = ff_avg_h264_qpel8_mc12_lasx;
+            c->avg_h264_qpel_pixels_tab[1][10] = ff_avg_h264_qpel8_mc22_lasx;
+            c->avg_h264_qpel_pixels_tab[1][11] = ff_avg_h264_qpel8_mc32_lasx;
+            c->avg_h264_qpel_pixels_tab[1][13] = ff_avg_h264_qpel8_mc13_lasx;
+            c->avg_h264_qpel_pixels_tab[1][14] = ff_avg_h264_qpel8_mc23_lasx;
+            c->avg_h264_qpel_pixels_tab[1][15] = ff_avg_h264_qpel8_mc33_lasx;
+        }
+    }
+}