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// 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"
#include "lib/jxl/image_ops.h"
namespace jxl {
StatusOr<ColorCorrelationMap> ColorCorrelationMap::Create(size_t xsize,
size_t ysize,
bool XYB) {
ColorCorrelationMap result;
size_t xblocks = DivCeil(xsize, kColorTileDim);
size_t yblocks = DivCeil(ysize, kColorTileDim);
JXL_ASSIGN_OR_RETURN(result.ytox_map, ImageSB::Create(xblocks, yblocks));
JXL_ASSIGN_OR_RETURN(result.ytob_map, ImageSB::Create(xblocks, yblocks));
ZeroFillImage(&result.ytox_map);
ZeroFillImage(&result.ytob_map);
if (!XYB) {
result.base_correlation_b_ = 0;
}
result.RecomputeDCFactors();
return result;
}
} // namespace jxl
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