1 files changed, 71 insertions, 0 deletions
diff --git a/third_party/dav1d/src/cdef.h b/third_party/dav1d/src/cdef.h
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+++ b/third_party/dav1d/src/cdef.h
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+/*
+ * Copyright © 2018, VideoLAN and dav1d authors
+ * Copyright © 2018, Two Orioles, LLC
+ * 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_CDEF_H
+#define DAV1D_SRC_CDEF_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "common/bitdepth.h"
+
+enum CdefEdgeFlags {
+    CDEF_HAVE_LEFT = 1 << 0,
+    CDEF_HAVE_RIGHT = 1 << 1,
+    CDEF_HAVE_TOP = 1 << 2,
+    CDEF_HAVE_BOTTOM = 1 << 3,
+};
+
+#ifdef BITDEPTH
+typedef const pixel (*const_left_pixel_row_2px)[2];
+#else
+typedef const void *const_left_pixel_row_2px;
+#endif
+
+// CDEF operates entirely on pre-filter data; if bottom/right edges are
+// present (according to $edges), then the pre-filter data is located in
+// $dst. However, the edge pixels above $dst may be post-filter, so in
+// order to get access to pre-filter top pixels, use $top.
+#define decl_cdef_fn(name) \
+void (name)(pixel *dst, ptrdiff_t stride, const_left_pixel_row_2px left, \
+            const pixel *top, const pixel *bottom, \
+            int pri_strength, int sec_strength, \
+            int dir, int damping, enum CdefEdgeFlags edges HIGHBD_DECL_SUFFIX)
+typedef decl_cdef_fn(*cdef_fn);
+
+#define decl_cdef_dir_fn(name) \
+int (name)(const pixel *dst, ptrdiff_t dst_stride, unsigned *var HIGHBD_DECL_SUFFIX)
+typedef decl_cdef_dir_fn(*cdef_dir_fn);
+
+typedef struct Dav1dCdefDSPContext {
+    cdef_dir_fn dir;
+    cdef_fn fb[3 /* 444/luma, 422, 420 */];
+} Dav1dCdefDSPContext;
+
+bitfn_decls(void dav1d_cdef_dsp_init, Dav1dCdefDSPContext *c);
+
+#endif /* DAV1D_SRC_CDEF_H */