// 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