From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 19:32:43 +0200
Subject: Adding upstream version 1:115.7.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 third_party/jpeg-xl/lib/jxl/enc_modular.h | 92 +++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 third_party/jpeg-xl/lib/jxl/enc_modular.h

(limited to 'third_party/jpeg-xl/lib/jxl/enc_modular.h')

diff --git a/third_party/jpeg-xl/lib/jxl/enc_modular.h b/third_party/jpeg-xl/lib/jxl/enc_modular.h
new file mode 100644
index 0000000000..2af66e951f
--- /dev/null
+++ b/third_party/jpeg-xl/lib/jxl/enc_modular.h
@@ -0,0 +1,92 @@
+// 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_ENC_MODULAR_H_
+#define LIB_JXL_ENC_MODULAR_H_
+
+#include "lib/jxl/base/status.h"
+#include "lib/jxl/dec_modular.h"
+#include "lib/jxl/enc_bit_writer.h"
+#include "lib/jxl/enc_cache.h"
+#include "lib/jxl/enc_params.h"
+#include "lib/jxl/frame_header.h"
+#include "lib/jxl/image.h"
+#include "lib/jxl/image_bundle.h"
+#include "lib/jxl/modular/encoding/encoding.h"
+#include "lib/jxl/modular/modular_image.h"
+
+namespace jxl {
+
+struct AuxOut;
+
+class ModularFrameEncoder {
+ public:
+  ModularFrameEncoder(const FrameHeader& frame_header,
+                      const CompressParams& cparams_orig);
+  Status ComputeEncodingData(const FrameHeader& frame_header,
+                             const ImageMetadata& metadata,
+                             Image3F* JXL_RESTRICT color,
+                             const std::vector<ImageF>& extra_channels,
+                             PassesEncoderState* JXL_RESTRICT enc_state,
+                             const JxlCmsInterface& cms, ThreadPool* pool,
+                             AuxOut* aux_out, bool do_color);
+  // Encodes global info (tree + histograms) in the `writer`.
+  Status EncodeGlobalInfo(BitWriter* writer, AuxOut* aux_out);
+  // Encodes a specific modular image (identified by `stream`) in the `writer`,
+  // assigning bits to the provided `layer`.
+  Status EncodeStream(BitWriter* writer, AuxOut* aux_out, size_t layer,
+                      const ModularStreamId& stream);
+  // Creates a modular image for a given DC group of VarDCT mode. `dc` is the
+  // input DC image, not quantized; the group is specified by `group_index`, and
+  // `nl_dc` decides whether to apply a near-lossless processing to the DC or
+  // not.
+  void AddVarDCTDC(const Image3F& dc, size_t group_index, bool nl_dc,
+                   PassesEncoderState* enc_state, bool jpeg_transcode);
+  // Creates a modular image for the AC metadata of the given group
+  // (`group_index`).
+  void AddACMetadata(size_t group_index, bool jpeg_transcode,
+                     PassesEncoderState* enc_state);
+  // Encodes a RAW quantization table in `writer`. If `modular_frame_encoder` is
+  // null, the quantization table in `encoding` is used, with dimensions `size_x
+  // x size_y`. Otherwise, the table with ID `idx` is encoded from the given
+  // `modular_frame_encoder`.
+  static void EncodeQuantTable(size_t size_x, size_t size_y, BitWriter* writer,
+                               const QuantEncoding& encoding, size_t idx,
+                               ModularFrameEncoder* modular_frame_encoder);
+  // Stores a quantization table for future usage with `EncodeQuantTable`.
+  void AddQuantTable(size_t size_x, size_t size_y,
+                     const QuantEncoding& encoding, size_t idx);
+
+  std::vector<size_t> ac_metadata_size;
+  std::vector<uint8_t> extra_dc_precision;
+
+ private:
+  Status PrepareEncoding(const FrameHeader& frame_header, ThreadPool* pool,
+                         EncoderHeuristics* heuristics,
+                         AuxOut* aux_out = nullptr);
+  Status PrepareStreamParams(const Rect& rect, const CompressParams& cparams,
+                             int minShift, int maxShift,
+                             const ModularStreamId& stream, bool do_color);
+  std::vector<Image> stream_images_;
+  std::vector<ModularOptions> stream_options_;
+
+  Tree tree_;
+  std::vector<std::vector<Token>> tree_tokens_;
+  std::vector<GroupHeader> stream_headers_;
+  std::vector<std::vector<Token>> tokens_;
+  EntropyEncodingData code_;
+  std::vector<uint8_t> context_map_;
+  FrameDimensions frame_dim_;
+  CompressParams cparams_;
+  std::vector<size_t> tree_splits_;
+  std::vector<ModularMultiplierInfo> multiplier_info_;
+  std::vector<std::vector<uint32_t>> gi_channel_;
+  std::vector<size_t> image_widths_;
+  Predictor delta_pred_ = Predictor::Average4;
+};
+
+}  // namespace jxl
+
+#endif  // LIB_JXL_ENC_MODULAR_H_
-- 
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