diff options
Diffstat (limited to 'third_party/jpeg-xl/lib/jxl/chroma_from_luma.cc')
| -rw-r--r-- | third_party/jpeg-xl/lib/jxl/chroma_from_luma.cc | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/third_party/jpeg-xl/lib/jxl/chroma_from_luma.cc b/third_party/jpeg-xl/lib/jxl/chroma_from_luma.cc new file mode 100644 index 0000000000..63d21cbb4b --- /dev/null +++ b/third_party/jpeg-xl/lib/jxl/chroma_from_luma.cc @@ -0,0 +1,21 @@ +// Copyright (c) the JPEG XL Project Authors. All rights reserved. +// +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +#include "lib/jxl/chroma_from_luma.h" + +namespace jxl { + +ColorCorrelationMap::ColorCorrelationMap(size_t xsize, size_t ysize, bool XYB) + : ytox_map(DivCeil(xsize, kColorTileDim), DivCeil(ysize, kColorTileDim)), + ytob_map(DivCeil(xsize, kColorTileDim), DivCeil(ysize, kColorTileDim)) { + ZeroFillImage(&ytox_map); + ZeroFillImage(&ytob_map); + if (!XYB) { + base_correlation_b_ = 0; + } + RecomputeDCFactors(); +} + +} // namespace jxl |