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- #ifndef JPEGLIB_H
- #define JPEGLIB_H
- #ifndef JCONFIG_INCLUDED
- #include "jconfig.h"
- #endif
- #include "jmorecfg.h"
- #ifdef __cplusplus
- #ifndef DONT_USE_EXTERN_C
- extern "C" {
- #endif
- #endif
- #define DCTSIZE 8
- #define DCTSIZE2 64
- #define NUM_QUANT_TBLS 4
- #define NUM_HUFF_TBLS 4
- #define NUM_ARITH_TBLS 16
- #define MAX_COMPS_IN_SCAN 4
- #define MAX_SAMP_FACTOR 4
- #define C_MAX_BLOCKS_IN_MCU 10
- #ifndef D_MAX_BLOCKS_IN_MCU
- #define D_MAX_BLOCKS_IN_MCU 10
- #endif
- typedef JSAMPLE *JSAMPROW;
- typedef JSAMPROW *JSAMPARRAY;
- typedef JSAMPARRAY *JSAMPIMAGE;
- typedef JCOEF JBLOCK[DCTSIZE2];
- typedef JBLOCK *JBLOCKROW;
- typedef JBLOCKROW *JBLOCKARRAY;
- typedef JBLOCKARRAY *JBLOCKIMAGE;
- typedef JCOEF *JCOEFPTR;
- typedef struct {
-
- UINT16 quantval[DCTSIZE2];
-
- boolean sent_table;
- } JQUANT_TBL;
- typedef struct {
-
- UINT8 bits[17];
-
- UINT8 huffval[256];
-
- boolean sent_table;
- } JHUFF_TBL;
- typedef struct {
-
-
-
- int component_id;
- int component_index;
- int h_samp_factor;
- int v_samp_factor;
- int quant_tbl_no;
-
-
-
-
- int dc_tbl_no;
- int ac_tbl_no;
-
-
-
- JDIMENSION width_in_blocks;
- JDIMENSION height_in_blocks;
-
- #if JPEG_LIB_VERSION >= 70
- int DCT_h_scaled_size;
- int DCT_v_scaled_size;
- #else
- int DCT_scaled_size;
- #endif
-
- JDIMENSION downsampled_width;
- JDIMENSION downsampled_height;
-
- boolean component_needed;
-
-
- int MCU_width;
- int MCU_height;
- int MCU_blocks;
- int MCU_sample_width;
- int last_col_width;
- int last_row_height;
-
- JQUANT_TBL *quant_table;
-
- void *dct_table;
- } jpeg_component_info;
- typedef struct {
- int comps_in_scan;
- int component_index[MAX_COMPS_IN_SCAN];
- int Ss, Se;
- int Ah, Al;
- } jpeg_scan_info;
- typedef struct jpeg_marker_struct *jpeg_saved_marker_ptr;
- struct jpeg_marker_struct {
- jpeg_saved_marker_ptr next;
- UINT8 marker;
- unsigned int original_length;
- unsigned int data_length;
- JOCTET *data;
-
- };
- #define JCS_EXTENSIONS 1
- #define JCS_ALPHA_EXTENSIONS 1
- typedef enum {
- JCS_UNKNOWN,
- JCS_GRAYSCALE,
- JCS_RGB,
- JCS_YCbCr,
- JCS_CMYK,
- JCS_YCCK,
- JCS_EXT_RGB,
- JCS_EXT_RGBX,
- JCS_EXT_BGR,
- JCS_EXT_BGRX,
- JCS_EXT_XBGR,
- JCS_EXT_XRGB,
-
- JCS_EXT_RGBA,
- JCS_EXT_BGRA,
- JCS_EXT_ABGR,
- JCS_EXT_ARGB,
- JCS_RGB565
- } J_COLOR_SPACE;
- typedef enum {
- JDCT_ISLOW,
- JDCT_IFAST,
- JDCT_FLOAT
- } J_DCT_METHOD;
- #ifndef JDCT_DEFAULT
- #define JDCT_DEFAULT JDCT_ISLOW
- #endif
- #ifndef JDCT_FASTEST
- #define JDCT_FASTEST JDCT_IFAST
- #endif
- typedef enum {
- JDITHER_NONE,
- JDITHER_ORDERED,
- JDITHER_FS
- } J_DITHER_MODE;
- #define jpeg_common_fields \
- struct jpeg_error_mgr *err; \
- struct jpeg_memory_mgr *mem; \
- struct jpeg_progress_mgr *progress; \
- void *client_data; \
- boolean is_decompressor; \
- int global_state
- struct jpeg_common_struct {
- jpeg_common_fields;
-
- };
- typedef struct jpeg_common_struct *j_common_ptr;
- typedef struct jpeg_compress_struct *j_compress_ptr;
- typedef struct jpeg_decompress_struct *j_decompress_ptr;
- struct jpeg_compress_struct {
- jpeg_common_fields;
-
- struct jpeg_destination_mgr *dest;
-
- JDIMENSION image_width;
- JDIMENSION image_height;
- int input_components;
- J_COLOR_SPACE in_color_space;
- double input_gamma;
-
- #if JPEG_LIB_VERSION >= 70
- unsigned int scale_num, scale_denom;
- JDIMENSION jpeg_width;
- JDIMENSION jpeg_height;
-
- #endif
- int data_precision;
- int num_components;
- J_COLOR_SPACE jpeg_color_space;
- jpeg_component_info *comp_info;
-
- JQUANT_TBL *quant_tbl_ptrs[NUM_QUANT_TBLS];
- #if JPEG_LIB_VERSION >= 70
- int q_scale_factor[NUM_QUANT_TBLS];
- #endif
-
- JHUFF_TBL *dc_huff_tbl_ptrs[NUM_HUFF_TBLS];
- JHUFF_TBL *ac_huff_tbl_ptrs[NUM_HUFF_TBLS];
-
- UINT8 arith_dc_L[NUM_ARITH_TBLS];
- UINT8 arith_dc_U[NUM_ARITH_TBLS];
- UINT8 arith_ac_K[NUM_ARITH_TBLS];
- int num_scans;
- const jpeg_scan_info *scan_info;
-
- boolean raw_data_in;
- boolean arith_code;
- boolean optimize_coding;
- boolean CCIR601_sampling;
- #if JPEG_LIB_VERSION >= 70
- boolean do_fancy_downsampling;
- #endif
- int smoothing_factor;
- J_DCT_METHOD dct_method;
-
- unsigned int restart_interval;
- int restart_in_rows;
-
- boolean write_JFIF_header;
- UINT8 JFIF_major_version;
- UINT8 JFIF_minor_version;
-
-
-
-
- UINT8 density_unit;
- UINT16 X_density;
- UINT16 Y_density;
- boolean write_Adobe_marker;
-
- JDIMENSION next_scanline;
-
-
- boolean progressive_mode;
- int max_h_samp_factor;
- int max_v_samp_factor;
- #if JPEG_LIB_VERSION >= 70
- int min_DCT_h_scaled_size;
- int min_DCT_v_scaled_size;
- #endif
- JDIMENSION total_iMCU_rows;
-
-
- int comps_in_scan;
- jpeg_component_info *cur_comp_info[MAX_COMPS_IN_SCAN];
-
- JDIMENSION MCUs_per_row;
- JDIMENSION MCU_rows_in_scan;
- int blocks_in_MCU;
- int MCU_membership[C_MAX_BLOCKS_IN_MCU];
-
-
- int Ss, Se, Ah, Al;
- #if JPEG_LIB_VERSION >= 80
- int block_size;
- const int *natural_order;
- int lim_Se;
- #endif
-
- struct jpeg_comp_master *master;
- struct jpeg_c_main_controller *main;
- struct jpeg_c_prep_controller *prep;
- struct jpeg_c_coef_controller *coef;
- struct jpeg_marker_writer *marker;
- struct jpeg_color_converter *cconvert;
- struct jpeg_downsampler *downsample;
- struct jpeg_forward_dct *fdct;
- struct jpeg_entropy_encoder *entropy;
- jpeg_scan_info *script_space;
- int script_space_size;
- };
- struct jpeg_decompress_struct {
- jpeg_common_fields;
-
- struct jpeg_source_mgr *src;
-
-
- JDIMENSION image_width;
- JDIMENSION image_height;
- int num_components;
- J_COLOR_SPACE jpeg_color_space;
-
- J_COLOR_SPACE out_color_space;
- unsigned int scale_num, scale_denom;
- double output_gamma;
- boolean buffered_image;
- boolean raw_data_out;
- J_DCT_METHOD dct_method;
- boolean do_fancy_upsampling;
- boolean do_block_smoothing;
- boolean quantize_colors;
-
- J_DITHER_MODE dither_mode;
- boolean two_pass_quantize;
- int desired_number_of_colors;
-
- boolean enable_1pass_quant;
- boolean enable_external_quant;
- boolean enable_2pass_quant;
-
- JDIMENSION output_width;
- JDIMENSION output_height;
- int out_color_components;
- int output_components;
-
- int rec_outbuf_height;
-
-
- int actual_number_of_colors;
- JSAMPARRAY colormap;
-
-
- JDIMENSION output_scanline;
-
- int input_scan_number;
- JDIMENSION input_iMCU_row;
-
- int output_scan_number;
- JDIMENSION output_iMCU_row;
-
- int (*coef_bits)[DCTSIZE2];
-
-
- JQUANT_TBL *quant_tbl_ptrs[NUM_QUANT_TBLS];
-
- JHUFF_TBL *dc_huff_tbl_ptrs[NUM_HUFF_TBLS];
- JHUFF_TBL *ac_huff_tbl_ptrs[NUM_HUFF_TBLS];
-
-
- int data_precision;
- jpeg_component_info *comp_info;
-
- #if JPEG_LIB_VERSION >= 80
- boolean is_baseline;
- #endif
- boolean progressive_mode;
- boolean arith_code;
- UINT8 arith_dc_L[NUM_ARITH_TBLS];
- UINT8 arith_dc_U[NUM_ARITH_TBLS];
- UINT8 arith_ac_K[NUM_ARITH_TBLS];
- unsigned int restart_interval;
-
- boolean saw_JFIF_marker;
-
- UINT8 JFIF_major_version;
- UINT8 JFIF_minor_version;
- UINT8 density_unit;
- UINT16 X_density;
- UINT16 Y_density;
- boolean saw_Adobe_marker;
- UINT8 Adobe_transform;
- boolean CCIR601_sampling;
-
- jpeg_saved_marker_ptr marker_list;
-
-
- int max_h_samp_factor;
- int max_v_samp_factor;
- #if JPEG_LIB_VERSION >= 70
- int min_DCT_h_scaled_size;
- int min_DCT_v_scaled_size;
- #else
- int min_DCT_scaled_size;
- #endif
- JDIMENSION total_iMCU_rows;
-
- JSAMPLE *sample_range_limit;
-
- int comps_in_scan;
- jpeg_component_info *cur_comp_info[MAX_COMPS_IN_SCAN];
-
- JDIMENSION MCUs_per_row;
- JDIMENSION MCU_rows_in_scan;
- int blocks_in_MCU;
- int MCU_membership[D_MAX_BLOCKS_IN_MCU];
-
-
- int Ss, Se, Ah, Al;
- #if JPEG_LIB_VERSION >= 80
-
- int block_size;
- const int *natural_order;
- int lim_Se;
- #endif
-
- int unread_marker;
-
- struct jpeg_decomp_master *master;
- struct jpeg_d_main_controller *main;
- struct jpeg_d_coef_controller *coef;
- struct jpeg_d_post_controller *post;
- struct jpeg_input_controller *inputctl;
- struct jpeg_marker_reader *marker;
- struct jpeg_entropy_decoder *entropy;
- struct jpeg_inverse_dct *idct;
- struct jpeg_upsampler *upsample;
- struct jpeg_color_deconverter *cconvert;
- struct jpeg_color_quantizer *cquantize;
- };
- struct jpeg_error_mgr {
-
- void (*error_exit) (j_common_ptr cinfo);
-
- void (*emit_message) (j_common_ptr cinfo, int msg_level);
-
- void (*output_message) (j_common_ptr cinfo);
-
- void (*format_message) (j_common_ptr cinfo, char *buffer);
- #define JMSG_LENGTH_MAX 200
-
- void (*reset_error_mgr) (j_common_ptr cinfo);
-
- int msg_code;
- #define JMSG_STR_PARM_MAX 80
- union {
- int i[8];
- char s[JMSG_STR_PARM_MAX];
- } msg_parm;
-
- int trace_level;
-
- long num_warnings;
-
- const char * const *jpeg_message_table;
- int last_jpeg_message;
-
- const char * const *addon_message_table;
- int first_addon_message;
- int last_addon_message;
- };
- struct jpeg_progress_mgr {
- void (*progress_monitor) (j_common_ptr cinfo);
- long pass_counter;
- long pass_limit;
- int completed_passes;
- int total_passes;
- };
- struct jpeg_destination_mgr {
- JOCTET *next_output_byte;
- size_t free_in_buffer;
- void (*init_destination) (j_compress_ptr cinfo);
- boolean (*empty_output_buffer) (j_compress_ptr cinfo);
- void (*term_destination) (j_compress_ptr cinfo);
- };
- struct jpeg_source_mgr {
- const JOCTET *next_input_byte;
- size_t bytes_in_buffer;
- void (*init_source) (j_decompress_ptr cinfo);
- boolean (*fill_input_buffer) (j_decompress_ptr cinfo);
- void (*skip_input_data) (j_decompress_ptr cinfo, long num_bytes);
- boolean (*resync_to_restart) (j_decompress_ptr cinfo, int desired);
- void (*term_source) (j_decompress_ptr cinfo);
- };
- #define JPOOL_PERMANENT 0
- #define JPOOL_IMAGE 1
- #define JPOOL_NUMPOOLS 2
- typedef struct jvirt_sarray_control *jvirt_sarray_ptr;
- typedef struct jvirt_barray_control *jvirt_barray_ptr;
- struct jpeg_memory_mgr {
-
- void *(*alloc_small) (j_common_ptr cinfo, int pool_id, size_t sizeofobject);
- void *(*alloc_large) (j_common_ptr cinfo, int pool_id,
- size_t sizeofobject);
- JSAMPARRAY (*alloc_sarray) (j_common_ptr cinfo, int pool_id,
- JDIMENSION samplesperrow, JDIMENSION numrows);
- JBLOCKARRAY (*alloc_barray) (j_common_ptr cinfo, int pool_id,
- JDIMENSION blocksperrow, JDIMENSION numrows);
- jvirt_sarray_ptr (*request_virt_sarray) (j_common_ptr cinfo, int pool_id,
- boolean pre_zero,
- JDIMENSION samplesperrow,
- JDIMENSION numrows,
- JDIMENSION maxaccess);
- jvirt_barray_ptr (*request_virt_barray) (j_common_ptr cinfo, int pool_id,
- boolean pre_zero,
- JDIMENSION blocksperrow,
- JDIMENSION numrows,
- JDIMENSION maxaccess);
- void (*realize_virt_arrays) (j_common_ptr cinfo);
- JSAMPARRAY (*access_virt_sarray) (j_common_ptr cinfo, jvirt_sarray_ptr ptr,
- JDIMENSION start_row, JDIMENSION num_rows,
- boolean writable);
- JBLOCKARRAY (*access_virt_barray) (j_common_ptr cinfo, jvirt_barray_ptr ptr,
- JDIMENSION start_row, JDIMENSION num_rows,
- boolean writable);
- void (*free_pool) (j_common_ptr cinfo, int pool_id);
- void (*self_destruct) (j_common_ptr cinfo);
-
- long max_memory_to_use;
-
- long max_alloc_chunk;
- };
- typedef boolean (*jpeg_marker_parser_method) (j_decompress_ptr cinfo);
- #define JPP(arglist) arglist
- EXTERN(struct jpeg_error_mgr *) jpeg_std_error(struct jpeg_error_mgr *err);
- #define jpeg_create_compress(cinfo) \
- jpeg_CreateCompress((cinfo), JPEG_LIB_VERSION, \
- (size_t)sizeof(struct jpeg_compress_struct))
- #define jpeg_create_decompress(cinfo) \
- jpeg_CreateDecompress((cinfo), JPEG_LIB_VERSION, \
- (size_t)sizeof(struct jpeg_decompress_struct))
- EXTERN(void) jpeg_CreateCompress(j_compress_ptr cinfo, int version,
- size_t structsize);
- EXTERN(void) jpeg_CreateDecompress(j_decompress_ptr cinfo, int version,
- size_t structsize);
- EXTERN(void) jpeg_destroy_compress(j_compress_ptr cinfo);
- EXTERN(void) jpeg_destroy_decompress(j_decompress_ptr cinfo);
- EXTERN(void) jpeg_stdio_dest(j_compress_ptr cinfo, FILE *outfile);
- EXTERN(void) jpeg_stdio_src(j_decompress_ptr cinfo, FILE *infile);
- #if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED)
- EXTERN(void) jpeg_mem_dest(j_compress_ptr cinfo, unsigned char **outbuffer,
- unsigned long *outsize);
- EXTERN(void) jpeg_mem_src(j_decompress_ptr cinfo,
- const unsigned char *inbuffer, unsigned long insize);
- #endif
- EXTERN(void) jpeg_set_defaults(j_compress_ptr cinfo);
- EXTERN(void) jpeg_set_colorspace(j_compress_ptr cinfo,
- J_COLOR_SPACE colorspace);
- EXTERN(void) jpeg_default_colorspace(j_compress_ptr cinfo);
- EXTERN(void) jpeg_set_quality(j_compress_ptr cinfo, int quality,
- boolean force_baseline);
- EXTERN(void) jpeg_set_linear_quality(j_compress_ptr cinfo, int scale_factor,
- boolean force_baseline);
- #if JPEG_LIB_VERSION >= 70
- EXTERN(void) jpeg_default_qtables(j_compress_ptr cinfo,
- boolean force_baseline);
- #endif
- EXTERN(void) jpeg_add_quant_table(j_compress_ptr cinfo, int which_tbl,
- const unsigned int *basic_table,
- int scale_factor, boolean force_baseline);
- EXTERN(int) jpeg_quality_scaling(int quality);
- EXTERN(void) jpeg_simple_progression(j_compress_ptr cinfo);
- EXTERN(void) jpeg_suppress_tables(j_compress_ptr cinfo, boolean suppress);
- EXTERN(JQUANT_TBL *) jpeg_alloc_quant_table(j_common_ptr cinfo);
- EXTERN(JHUFF_TBL *) jpeg_alloc_huff_table(j_common_ptr cinfo);
- EXTERN(void) jpeg_start_compress(j_compress_ptr cinfo,
- boolean write_all_tables);
- EXTERN(JDIMENSION) jpeg_write_scanlines(j_compress_ptr cinfo,
- JSAMPARRAY scanlines,
- JDIMENSION num_lines);
- EXTERN(void) jpeg_finish_compress(j_compress_ptr cinfo);
- #if JPEG_LIB_VERSION >= 70
- EXTERN(void) jpeg_calc_jpeg_dimensions(j_compress_ptr cinfo);
- #endif
- EXTERN(JDIMENSION) jpeg_write_raw_data(j_compress_ptr cinfo, JSAMPIMAGE data,
- JDIMENSION num_lines);
- EXTERN(void) jpeg_write_marker(j_compress_ptr cinfo, int marker,
- const JOCTET *dataptr, unsigned int datalen);
- EXTERN(void) jpeg_write_m_header(j_compress_ptr cinfo, int marker,
- unsigned int datalen);
- EXTERN(void) jpeg_write_m_byte(j_compress_ptr cinfo, int val);
- EXTERN(void) jpeg_write_tables(j_compress_ptr cinfo);
- EXTERN(void) jpeg_write_icc_profile(j_compress_ptr cinfo,
- const JOCTET *icc_data_ptr,
- unsigned int icc_data_len);
- EXTERN(int) jpeg_read_header(j_decompress_ptr cinfo, boolean require_image);
- #define JPEG_SUSPENDED 0
- #define JPEG_HEADER_OK 1
- #define JPEG_HEADER_TABLES_ONLY 2
- EXTERN(boolean) jpeg_start_decompress(j_decompress_ptr cinfo);
- EXTERN(JDIMENSION) jpeg_read_scanlines(j_decompress_ptr cinfo,
- JSAMPARRAY scanlines,
- JDIMENSION max_lines);
- EXTERN(JDIMENSION) jpeg_skip_scanlines(j_decompress_ptr cinfo,
- JDIMENSION num_lines);
- EXTERN(void) jpeg_crop_scanline(j_decompress_ptr cinfo, JDIMENSION *xoffset,
- JDIMENSION *width);
- EXTERN(boolean) jpeg_finish_decompress(j_decompress_ptr cinfo);
- EXTERN(JDIMENSION) jpeg_read_raw_data(j_decompress_ptr cinfo, JSAMPIMAGE data,
- JDIMENSION max_lines);
- EXTERN(boolean) jpeg_has_multiple_scans(j_decompress_ptr cinfo);
- EXTERN(boolean) jpeg_start_output(j_decompress_ptr cinfo, int scan_number);
- EXTERN(boolean) jpeg_finish_output(j_decompress_ptr cinfo);
- EXTERN(boolean) jpeg_input_complete(j_decompress_ptr cinfo);
- EXTERN(void) jpeg_new_colormap(j_decompress_ptr cinfo);
- EXTERN(int) jpeg_consume_input(j_decompress_ptr cinfo);
- #define JPEG_REACHED_SOS 1
- #define JPEG_REACHED_EOI 2
- #define JPEG_ROW_COMPLETED 3
- #define JPEG_SCAN_COMPLETED 4
- #if JPEG_LIB_VERSION >= 80
- EXTERN(void) jpeg_core_output_dimensions(j_decompress_ptr cinfo);
- #endif
- EXTERN(void) jpeg_calc_output_dimensions(j_decompress_ptr cinfo);
- EXTERN(void) jpeg_save_markers(j_decompress_ptr cinfo, int marker_code,
- unsigned int length_limit);
- EXTERN(void) jpeg_set_marker_processor(j_decompress_ptr cinfo,
- int marker_code,
- jpeg_marker_parser_method routine);
- EXTERN(jvirt_barray_ptr *) jpeg_read_coefficients(j_decompress_ptr cinfo);
- EXTERN(void) jpeg_write_coefficients(j_compress_ptr cinfo,
- jvirt_barray_ptr *coef_arrays);
- EXTERN(void) jpeg_copy_critical_parameters(j_decompress_ptr srcinfo,
- j_compress_ptr dstinfo);
- EXTERN(void) jpeg_abort_compress(j_compress_ptr cinfo);
- EXTERN(void) jpeg_abort_decompress(j_decompress_ptr cinfo);
- EXTERN(void) jpeg_abort(j_common_ptr cinfo);
- EXTERN(void) jpeg_destroy(j_common_ptr cinfo);
- EXTERN(boolean) jpeg_resync_to_restart(j_decompress_ptr cinfo, int desired);
- EXTERN(boolean) jpeg_read_icc_profile(j_decompress_ptr cinfo,
- JOCTET **icc_data_ptr,
- unsigned int *icc_data_len);
- #define JPEG_RST0 0xD0
- #define JPEG_EOI 0xD9
- #define JPEG_APP0 0xE0
- #define JPEG_COM 0xFE
- #ifdef INCOMPLETE_TYPES_BROKEN
- #ifndef JPEG_INTERNALS
- struct jvirt_sarray_control { long dummy; };
- struct jvirt_barray_control { long dummy; };
- struct jpeg_comp_master { long dummy; };
- struct jpeg_c_main_controller { long dummy; };
- struct jpeg_c_prep_controller { long dummy; };
- struct jpeg_c_coef_controller { long dummy; };
- struct jpeg_marker_writer { long dummy; };
- struct jpeg_color_converter { long dummy; };
- struct jpeg_downsampler { long dummy; };
- struct jpeg_forward_dct { long dummy; };
- struct jpeg_entropy_encoder { long dummy; };
- struct jpeg_decomp_master { long dummy; };
- struct jpeg_d_main_controller { long dummy; };
- struct jpeg_d_coef_controller { long dummy; };
- struct jpeg_d_post_controller { long dummy; };
- struct jpeg_input_controller { long dummy; };
- struct jpeg_marker_reader { long dummy; };
- struct jpeg_entropy_decoder { long dummy; };
- struct jpeg_inverse_dct { long dummy; };
- struct jpeg_upsampler { long dummy; };
- struct jpeg_color_deconverter { long dummy; };
- struct jpeg_color_quantizer { long dummy; };
- #endif
- #endif
- #ifdef JPEG_INTERNALS
- #include "jpegint.h"
- #include "jerror.h"
- #endif
- #ifdef __cplusplus
- #ifndef DONT_USE_EXTERN_C
- }
- #endif
- #endif
- #endif
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