1 files changed, 50 insertions, 0 deletions
diff --git a/libswscale/loongarch/swscale_init_loongarch.c b/libswscale/loongarch/swscale_init_loongarch.c
new file mode 100644
index 0000000000..197dc6e1e7
--- /dev/null
+++ b/libswscale/loongarch/swscale_init_loongarch.c
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2022 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 "swscale_loongarch.h"
+#include "libswscale/swscale_internal.h"
+#include "libavutil/loongarch/cpu.h"
+
+av_cold void ff_sws_init_swscale_loongarch(SwsContext *c)
+{
+    int cpu_flags = av_get_cpu_flags();
+    if (have_lasx(cpu_flags)) {
+        if (c->srcBpc == 8) {
+            if (c->dstBpc <= 14) {
+                c->hyScale = c->hcScale = ff_hscale_8_to_15_lasx;
+            } else {
+                c->hyScale = c->hcScale = ff_hscale_8_to_19_lasx;
+            }
+        } else {
+            c->hyScale = c->hcScale = c->dstBpc > 14 ? ff_hscale_16_to_19_lasx
+                                                     : ff_hscale_16_to_15_lasx;
+        }
+        switch (c->srcFormat) {
+        case AV_PIX_FMT_GBRAP:
+        case AV_PIX_FMT_GBRP:
+            {
+                c->readChrPlanar = planar_rgb_to_uv_lasx;
+                c->readLumPlanar = planar_rgb_to_y_lasx;
+            }
+            break;
+        }
+    }
+}