avcodec: [loongarch] Optimize vp9_mc/intra with LSX.

ffmpeg -i ../10_vp9_1080p_30fps_3Mbps.webm -f rawvideo -y /dev/null -an
before:170fps
after :294fps

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

1 files changed, 97 insertions, 0 deletions

diff --git a/libavcodec/loongarch/vp9dsp_init_loongarch.c b/libavcodec/loongarch/vp9dsp_init_loongarch.c
new file mode 100644
index 0000000000..c1e01b4558
--- /dev/null
+++ b/libavcodec/loongarch/vp9dsp_init_loongarch.c
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2021 Loongson Technology Corporation Limited
+ * Contributed by Hao Chen <chenhao@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 "libavutil/loongarch/cpu.h"
+#include "libavutil/attributes.h"
+#include "libavcodec/vp9dsp.h"
+#include "vp9dsp_loongarch.h"
+
+#define init_subpel1(idx1, idx2, idxh, idxv, sz, dir, type)  \
+    dsp->mc[idx1][FILTER_8TAP_SMOOTH ][idx2][idxh][idxv] =   \
+        ff_##type##_8tap_smooth_##sz##dir##_lsx;             \
+    dsp->mc[idx1][FILTER_8TAP_REGULAR][idx2][idxh][idxv] =   \
+        ff_##type##_8tap_regular_##sz##dir##_lsx;            \
+    dsp->mc[idx1][FILTER_8TAP_SHARP  ][idx2][idxh][idxv] =   \
+        ff_##type##_8tap_sharp_##sz##dir##_lsx;
+
+#define init_subpel2(idx, idxh, idxv, dir, type)      \
+    init_subpel1(0, idx, idxh, idxv, 64, dir, type);  \
+    init_subpel1(1, idx, idxh, idxv, 32, dir, type);  \
+    init_subpel1(2, idx, idxh, idxv, 16, dir, type);  \
+    init_subpel1(3, idx, idxh, idxv,  8, dir, type);  \
+    init_subpel1(4, idx, idxh, idxv,  4, dir, type);
+
+#define init_subpel3(idx, type)         \
+    init_subpel2(idx, 1, 0, h, type);   \
+    init_subpel2(idx, 0, 1, v, type);   \
+    init_subpel2(idx, 1, 1, hv, type);
+
+#define init_fpel(idx1, idx2, sz, type)                                    \
+    dsp->mc[idx1][FILTER_8TAP_SMOOTH ][idx2][0][0] = ff_##type##sz##_lsx;  \
+    dsp->mc[idx1][FILTER_8TAP_REGULAR][idx2][0][0] = ff_##type##sz##_lsx;  \
+    dsp->mc[idx1][FILTER_8TAP_SHARP  ][idx2][0][0] = ff_##type##sz##_lsx;  \
+    dsp->mc[idx1][FILTER_BILINEAR    ][idx2][0][0] = ff_##type##sz##_lsx;
+
+#define init_copy(idx, sz)                    \
+    init_fpel(idx, 0, sz, copy);              \
+    init_fpel(idx, 1, sz, avg);
+
+#define init_intra_pred1_lsx(tx, sz)                            \
+    dsp->intra_pred[tx][VERT_PRED]    = ff_vert_##sz##_lsx;     \
+    dsp->intra_pred[tx][HOR_PRED]     = ff_hor_##sz##_lsx;      \
+    dsp->intra_pred[tx][DC_PRED]      = ff_dc_##sz##_lsx;       \
+    dsp->intra_pred[tx][LEFT_DC_PRED] = ff_dc_left_##sz##_lsx;  \
+    dsp->intra_pred[tx][TOP_DC_PRED]  = ff_dc_top_##sz##_lsx;   \
+    dsp->intra_pred[tx][DC_128_PRED]  = ff_dc_128_##sz##_lsx;   \
+    dsp->intra_pred[tx][DC_127_PRED]  = ff_dc_127_##sz##_lsx;   \
+    dsp->intra_pred[tx][DC_129_PRED]  = ff_dc_129_##sz##_lsx;   \
+    dsp->intra_pred[tx][TM_VP8_PRED]  = ff_tm_##sz##_lsx;       \
+
+#define init_intra_pred2_lsx(tx, sz)                            \
+    dsp->intra_pred[tx][DC_PRED]      = ff_dc_##sz##_lsx;       \
+    dsp->intra_pred[tx][LEFT_DC_PRED] = ff_dc_left_##sz##_lsx;  \
+    dsp->intra_pred[tx][TOP_DC_PRED]  = ff_dc_top_##sz##_lsx;   \
+    dsp->intra_pred[tx][TM_VP8_PRED]  = ff_tm_##sz##_lsx;       \
+
+av_cold void ff_vp9dsp_init_loongarch(VP9DSPContext *dsp, int bpp)
+{
+    int cpu_flags = av_get_cpu_flags();
+    if (have_lsx(cpu_flags))
+        if (bpp == 8) {
+            init_subpel3(0, put);
+            init_subpel3(1, avg);
+            init_copy(0, 64);
+            init_copy(1, 32);
+            init_copy(2, 16);
+            init_copy(3, 8);
+            init_intra_pred1_lsx(TX_16X16, 16x16);
+            init_intra_pred1_lsx(TX_32X32, 32x32);
+            init_intra_pred2_lsx(TX_4X4, 4x4);
+            init_intra_pred2_lsx(TX_8X8, 8x8);
+        }
+}
+#undef init_subpel1
+#undef init_subpel2
+#undef init_subpel3
+#undef init_copy
+#undef init_fpel
+#undef init_intra_pred1_lsx
+#undef init_intra_pred2_lsx