1 files changed, 78 insertions, 0 deletions
diff --git a/third_party/dav1d/src/loongarch/looprestoration.h b/third_party/dav1d/src/loongarch/looprestoration.h
new file mode 100644
index 0000000000..ac0cb065c8
--- /dev/null
+++ b/third_party/dav1d/src/loongarch/looprestoration.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright © 2023, VideoLAN and dav1d authors
+ * Copyright © 2023, Loongson Technology Corporation Limited
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef DAV1D_SRC_LOONGARCH_LOOPRESTORATION_H
+#define DAV1D_SRC_LOONGARCH_LOOPRESTORATION_H
+
+#include "common/intops.h"
+#include "src/cpu.h"
+#include "src/looprestoration.h"
+
+void dav1d_wiener_filter_lsx(uint8_t *p, const ptrdiff_t stride,
+                             const uint8_t (*const left)[4],
+                             const uint8_t *lpf,
+                             const int w, const int h,
+                             const LooprestorationParams *const params,
+                             const enum LrEdgeFlags edges HIGHBD_DECL_SUFFIX);
+
+void dav1d_sgr_filter_3x3_lsx(pixel *p, const ptrdiff_t p_stride,
+                              const pixel (*const left)[4],
+                              const pixel *lpf,
+                              const int w, const int h,
+                              const LooprestorationParams *const params,
+                              const enum LrEdgeFlags edges HIGHBD_DECL_SUFFIX);
+
+void dav1d_sgr_filter_5x5_lsx(pixel *p, const ptrdiff_t p_stride,
+                              const pixel (*const left)[4],
+                              const pixel *lpf,
+                              const int w, const int h,
+                              const LooprestorationParams *const params,
+                              const enum LrEdgeFlags edges HIGHBD_DECL_SUFFIX);
+
+void dav1d_sgr_filter_mix_lsx(pixel *p, const ptrdiff_t p_stride,
+                              const pixel (*const left)[4],
+                              const pixel *lpf,
+                              const int w, const int h,
+                              const LooprestorationParams *const params,
+                              const enum LrEdgeFlags edges HIGHBD_DECL_SUFFIX);
+
+static ALWAYS_INLINE void loop_restoration_dsp_init_loongarch(Dav1dLoopRestorationDSPContext *const c, int bpc)
+{
+    const unsigned flags = dav1d_get_cpu_flags();
+
+    if (!(flags & DAV1D_LOONGARCH_CPU_FLAG_LSX)) return;
+
+#if BITDEPTH == 8
+    c->wiener[0] = c->wiener[1] = dav1d_wiener_filter_lsx;
+
+    c->sgr[0] = dav1d_sgr_filter_5x5_lsx;
+    c->sgr[1] = dav1d_sgr_filter_3x3_lsx;
+    c->sgr[2] = dav1d_sgr_filter_mix_lsx;
+#endif
+}
+
+#endif /* DAV1D_SRC_LOONGARCH_LOOPRESTORATION_H */