// 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.
struct jpeg_comp_master {
jpegli::RowBuffer<float> input_buffer[jpegli::kMaxComponents];
jpegli::RowBuffer<float>* smooth_input[jpegli::kMaxComponents];
jpegli::RowBuffer<float>* raw_data[jpegli::kMaxComponents]; bool force_baseline; bool xyb_mode;
uint8_t cicp_transfer_function; bool use_std_tables; bool use_adaptive_quantization; int progressive_level;
size_t xsize_blocks;
size_t ysize_blocks;
size_t blocks_per_iMCU_row;
jpegli::ScanTokenInfo* scan_token_info;
JpegliDataType data_type;
JpegliEndianness endianness; void (*input_method)(const uint8_t* row_in, size_t len, float* row_out[jpegli::kMaxComponents]); void (*color_transform)(float* row[jpegli::kMaxComponents], size_t len); void (*downsample_method[jpegli::kMaxComponents])( float* rows_in[MAX_SAMP_FACTOR], size_t len, float* row_out); float* quant_mul[jpegli::kMaxComponents]; float* zero_bias_offset[jpegli::kMaxComponents]; float* zero_bias_mul[jpegli::kMaxComponents]; int h_factor[jpegli::kMaxComponents]; int v_factor[jpegli::kMaxComponents]; // Array of Huffman tables that will be encoded in one or more DHT segments. // In progressive mode we compute all Huffman tables that will be used in any // of the scans, thus we can have more than 4 tables here.
JHUFF_TBL* huffman_tables;
size_t num_huffman_tables; // Array of num_huffman_tables slot ids, where the ith element is the slot id // of the ith Huffman table, as it appears in the DHT segment. The range of // the slot ids is 0..3 for DC and 16..19 for AC Huffman codes.
uint8_t* slot_id_map; // Maps context ids to an index in the huffman_tables array. Each component in // each scan has a DC and AC context id, which are defined as follows: // - DC context id is the component index (relative to cinfo->comp_info) of // the scan component // - AC context ids start at 4 and are increased for each component of each // scan that have AC components (i.e. Se > 0)
uint8_t* context_map;
size_t num_contexts; // Array of cinfo->num_scans context ids, where the ith element is the context // id of the first AC component of the ith scan.
uint8_t* ac_ctx_offset; // Array of num_huffman tables derived coding tables.
jpegli::HuffmanCodeTable* coding_tables; float* diff_buffer;
jpegli::RowBuffer<float> fuzzy_erosion_tmp;
jpegli::RowBuffer<float> pre_erosion;
jpegli::RowBuffer<float> quant_field;
jvirt_barray_ptr* coeff_buffers;
size_t next_input_row;
size_t next_iMCU_row;
size_t next_dht_index;
size_t last_restart_interval;
JCOEF last_dc_coeff[MAX_COMPS_IN_SCAN];
jpegli::JpegBitWriter bw; float* dct_buffer;
int32_t* block_tmp;
jpegli::TokenArray* token_arrays;
size_t cur_token_array;
jpegli::Token* next_token;
size_t num_tokens;
size_t total_num_tokens;
jpegli::RefToken* next_refinement_token;
uint8_t* next_refinement_bit; float psnr_target; float psnr_tolerance; float min_distance; float max_distance;
};
#endif// LIB_JPEGLI_ENCODE_INTERNAL_H_
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