diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /third_party/jpeg-xl/lib/jxl/epf.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | third_party/jpeg-xl/lib/jxl/epf.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/third_party/jpeg-xl/lib/jxl/epf.h b/third_party/jpeg-xl/lib/jxl/epf.h new file mode 100644 index 0000000000..7a0834ed97 --- /dev/null +++ b/third_party/jpeg-xl/lib/jxl/epf.h @@ -0,0 +1,33 @@ +// 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. + +#ifndef LIB_JXL_EPF_H_ +#define LIB_JXL_EPF_H_ + +// Fast SIMD "in-loop" edge preserving filter (adaptive, nonlinear). + +#include <stddef.h> + +#include "lib/jxl/base/data_parallel.h" +#include "lib/jxl/base/status.h" +#include "lib/jxl/dec_cache.h" +#include "lib/jxl/passes_state.h" + +namespace jxl { + +// 4 * (sqrt(0.5)-1), so that Weight(sigma) = 0.5. +static constexpr float kInvSigmaNum = -1.1715728752538099024f; + +// kInvSigmaNum / 0.3 +constexpr float kMinSigma = -3.90524291751269967465540850526868f; + +// Fills the `state->filter_weights.sigma` image with the precomputed sigma +// values in the area inside `block_rect`. Accesses the AC strategy, quant field +// and epf_sharpness fields in the corresponding positions. +void ComputeSigma(const Rect& block_rect, PassesDecoderState* state); + +} // namespace jxl + +#endif // LIB_JXL_EPF_H_ |