1 files changed, 35 insertions, 0 deletions
diff --git a/src/dsp/smooth_weights.inc b/src/dsp/smooth_weights.inc
new file mode 100644
index 0000000..d4ee8a6
--- /dev/null
+++ b/src/dsp/smooth_weights.inc
@@ -0,0 +1,35 @@
+// Copyright 2021 The libgav1 Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Each row below contains weights used for a corresponding block size. Because
+// they are adjacent powers of 2, the index of each row is the sum of the sizes
+// of preceding rows, minus 4.
+// The weights need to be declared as uint8_t or uint16_t, depending on the
+// bitdepth, so the values are held in a single canonical place.
+// clang-format off
+    // block dimension = 4
+    255, 149, 85, 64,
+    // block dimension = 8
+    255, 197, 146, 105, 73, 50, 37, 32,
+    // block dimension = 16
+    255, 225, 196, 170, 145, 123, 102, 84, 68, 54, 43, 33, 26, 20, 17, 16,
+    // block dimension = 32
+    255, 240, 225, 210, 196, 182, 169, 157, 145, 133, 122, 111, 101, 92, 83, 74,
+    66, 59, 52, 45, 39, 34, 29, 25, 21, 17, 14, 12, 10, 9, 8, 8,
+    // block dimension = 64
+    255, 248, 240, 233, 225, 218, 210, 203, 196, 189, 182, 176, 169, 163, 156,
+    150, 144, 138, 133, 127, 121, 116, 111, 106, 101, 96, 91, 86, 82, 77, 73,
+    69, 65, 61, 57, 54, 50, 47, 44, 41, 38, 35, 32, 29, 27, 25, 22, 20, 18, 16,
+    15, 13, 12, 10, 9, 8, 7, 6, 6, 5, 5, 4, 4, 4
+    // clang-format on