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jpegint.h
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1 /*
2  * jpegint.h
3  *
4  * Copyright (C) 1991-1997, Thomas G. Lane.
5  * Modified 1997-2017 by Guido Vollbeding.
6  * This file is part of the Independent JPEG Group's software.
7  * For conditions of distribution and use, see the accompanying README file.
8  *
9  * This file provides common declarations for the various JPEG modules.
10  * These declarations are considered internal to the JPEG library; most
11  * applications using the library shouldn't need to include this file.
12  */
13 
14 
15 /* Declarations for both compression & decompression */
16 
17 typedef enum { /* Operating modes for buffer controllers */
18  JBUF_PASS_THRU, /* Plain stripwise operation */
19  /* Remaining modes require a full-image buffer to have been created */
20  JBUF_SAVE_SOURCE, /* Run source subobject only, save output */
21  JBUF_CRANK_DEST, /* Run dest subobject only, using saved data */
22  JBUF_SAVE_AND_PASS /* Run both subobjects, save output */
23 } J_BUF_MODE;
24 
25 /* Values of global_state field (jdapi.c has some dependencies on ordering!) */
26 #define CSTATE_START 100 /* after create_compress */
27 #define CSTATE_SCANNING 101 /* start_compress done, write_scanlines OK */
28 #define CSTATE_RAW_OK 102 /* start_compress done, write_raw_data OK */
29 #define CSTATE_WRCOEFS 103 /* jpeg_write_coefficients done */
30 #define DSTATE_START 200 /* after create_decompress */
31 #define DSTATE_INHEADER 201 /* reading header markers, no SOS yet */
32 #define DSTATE_READY 202 /* found SOS, ready for start_decompress */
33 #define DSTATE_PRELOAD 203 /* reading multiscan file in start_decompress*/
34 #define DSTATE_PRESCAN 204 /* performing dummy pass for 2-pass quant */
35 #define DSTATE_SCANNING 205 /* start_decompress done, read_scanlines OK */
36 #define DSTATE_RAW_OK 206 /* start_decompress done, read_raw_data OK */
37 #define DSTATE_BUFIMAGE 207 /* expecting jpeg_start_output */
38 #define DSTATE_BUFPOST 208 /* looking for SOS/EOI in jpeg_finish_output */
39 #define DSTATE_RDCOEFS 209 /* reading file in jpeg_read_coefficients */
40 #define DSTATE_STOPPING 210 /* looking for EOI in jpeg_finish_decompress */
41 
42 
43 /* Declarations for compression modules */
44 
45 /* Master control module */
47  JMETHOD(void, prepare_for_pass, (j_compress_ptr cinfo));
48  JMETHOD(void, pass_startup, (j_compress_ptr cinfo));
49  JMETHOD(void, finish_pass, (j_compress_ptr cinfo));
50 
51  /* State variables made visible to other modules */
52  boolean call_pass_startup; /* True if pass_startup must be called */
53  boolean is_last_pass; /* True during last pass */
54 };
55 
56 /* Main buffer control (downsampled-data buffer) */
58  JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode));
59  JMETHOD(void, process_data, (j_compress_ptr cinfo,
60  JSAMPARRAY input_buf, JDIMENSION *in_row_ctr,
61  JDIMENSION in_rows_avail));
62 };
63 
64 /* Compression preprocessing (downsampling input buffer control) */
66  JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode));
68  JSAMPARRAY input_buf,
69  JDIMENSION *in_row_ctr,
70  JDIMENSION in_rows_avail,
72  JDIMENSION *out_row_group_ctr,
73  JDIMENSION out_row_groups_avail));
74 };
75 
76 /* Coefficient buffer control */
78  JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode));
79  JMETHOD(boolean, compress_data, (j_compress_ptr cinfo,
80  JSAMPIMAGE input_buf));
81 };
82 
83 /* Colorspace conversion */
85  JMETHOD(void, start_pass, (j_compress_ptr cinfo));
86  JMETHOD(void, color_convert, (j_compress_ptr cinfo,
87  JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
89 };
90 
91 /* Downsampling */
93  JMETHOD(void, start_pass, (j_compress_ptr cinfo));
94  JMETHOD(void, downsample, (j_compress_ptr cinfo,
95  JSAMPIMAGE input_buf, JDIMENSION in_row_index,
97  JDIMENSION out_row_group_index));
98 
99  boolean need_context_rows; /* TRUE if need rows above & below */
100 };
101 
102 /* Forward DCT (also controls coefficient quantization) */
103 typedef JMETHOD(void, forward_DCT_ptr,
105  JSAMPARRAY sample_data, JBLOCKROW coef_blocks,
106  JDIMENSION start_row, JDIMENSION start_col,
108 
110  JMETHOD(void, start_pass, (j_compress_ptr cinfo));
111  /* It is useful to allow each component to have a separate FDCT method. */
112  forward_DCT_ptr forward_DCT[MAX_COMPONENTS];
113 };
114 
115 /* Entropy encoding */
117  JMETHOD(void, start_pass, (j_compress_ptr cinfo, boolean gather_statistics));
118  JMETHOD(boolean, encode_mcu, (j_compress_ptr cinfo, JBLOCKROW *MCU_data));
119  JMETHOD(void, finish_pass, (j_compress_ptr cinfo));
120 };
121 
122 /* Marker writing */
124  JMETHOD(void, write_file_header, (j_compress_ptr cinfo));
125  JMETHOD(void, write_frame_header, (j_compress_ptr cinfo));
126  JMETHOD(void, write_scan_header, (j_compress_ptr cinfo));
127  JMETHOD(void, write_file_trailer, (j_compress_ptr cinfo));
128  JMETHOD(void, write_tables_only, (j_compress_ptr cinfo));
129  /* These routines are exported to allow insertion of extra markers */
130  /* Probably only COM and APPn markers should be written this way */
132  unsigned int datalen));
133  JMETHOD(void, write_marker_byte, (j_compress_ptr cinfo, int val));
134 };
135 
136 
137 /* Declarations for decompression modules */
138 
139 /* Master control module */
143 
144  /* State variables made visible to other modules */
145  boolean is_dummy_pass; /* True during 1st pass for 2-pass quant */
146 };
147 
148 /* Input control module */
150  JMETHOD(int, consume_input, (j_decompress_ptr cinfo));
152  JMETHOD(void, start_input_pass, (j_decompress_ptr cinfo));
154 
155  /* State variables made visible to other modules */
156  boolean has_multiple_scans; /* True if file has multiple scans */
157  boolean eoi_reached; /* True when EOI has been consumed */
158 };
159 
160 /* Main buffer control (downsampled-data buffer) */
162  JMETHOD(void, start_pass, (j_decompress_ptr cinfo, J_BUF_MODE pass_mode));
163  JMETHOD(void, process_data, (j_decompress_ptr cinfo,
164  JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
165  JDIMENSION out_rows_avail));
166 };
167 
168 /* Coefficient buffer control */
170  JMETHOD(void, start_input_pass, (j_decompress_ptr cinfo));
171  JMETHOD(int, consume_data, (j_decompress_ptr cinfo));
173  JMETHOD(int, decompress_data, (j_decompress_ptr cinfo,
175  /* Pointer to array of coefficient virtual arrays, or NULL if none */
177 };
178 
179 /* Decompression postprocessing (color quantization buffer control) */
181  JMETHOD(void, start_pass, (j_decompress_ptr cinfo, J_BUF_MODE pass_mode));
182  JMETHOD(void, post_process_data, (j_decompress_ptr cinfo,
183  JSAMPIMAGE input_buf,
184  JDIMENSION *in_row_group_ctr,
185  JDIMENSION in_row_groups_avail,
187  JDIMENSION *out_row_ctr,
188  JDIMENSION out_rows_avail));
189 };
190 
191 /* Marker reading & parsing */
194  /* Read markers until SOS or EOI.
195  * Returns same codes as are defined for jpeg_consume_input:
196  * JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI.
197  */
198  JMETHOD(int, read_markers, (j_decompress_ptr cinfo));
199  /* Read a restart marker --- exported for use by entropy decoder only */
200  jpeg_marker_parser_method read_restart_marker;
201 
202  /* State of marker reader --- nominally internal, but applications
203  * supplying COM or APPn handlers might like to know the state.
204  */
205  boolean saw_SOI; /* found SOI? */
206  boolean saw_SOF; /* found SOF? */
207  int next_restart_num; /* next restart number expected (0-7) */
208  unsigned int discarded_bytes; /* # of bytes skipped looking for a marker */
209 };
210 
211 /* Entropy decoding */
213  JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
214  JMETHOD(boolean, decode_mcu, (j_decompress_ptr cinfo, JBLOCKROW *MCU_data));
215  JMETHOD(void, finish_pass, (j_decompress_ptr cinfo));
216 };
217 
218 /* Inverse DCT (also performs dequantization) */
219 typedef JMETHOD(void, inverse_DCT_method_ptr,
223 
225  JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
226  /* It is useful to allow each component to have a separate IDCT method. */
227  inverse_DCT_method_ptr inverse_DCT[MAX_COMPONENTS];
228 };
229 
230 /* Upsampling (note that upsampler must also call color converter) */
232  JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
233  JMETHOD(void, upsample, (j_decompress_ptr cinfo,
234  JSAMPIMAGE input_buf,
235  JDIMENSION *in_row_group_ctr,
236  JDIMENSION in_row_groups_avail,
238  JDIMENSION *out_row_ctr,
239  JDIMENSION out_rows_avail));
240 
241  boolean need_context_rows; /* TRUE if need rows above & below */
242 };
243 
244 /* Colorspace conversion */
246  JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
247  JMETHOD(void, color_convert, (j_decompress_ptr cinfo,
248  JSAMPIMAGE input_buf, JDIMENSION input_row,
250 };
251 
252 /* Color quantization or color precision reduction */
254  JMETHOD(void, start_pass, (j_decompress_ptr cinfo, boolean is_pre_scan));
255  JMETHOD(void, color_quantize, (j_decompress_ptr cinfo,
256  JSAMPARRAY input_buf, JSAMPARRAY output_buf,
257  int num_rows));
258  JMETHOD(void, finish_pass, (j_decompress_ptr cinfo));
259  JMETHOD(void, new_color_map, (j_decompress_ptr cinfo));
260 };
261 
262 
263 /* Definition of range extension bits for decompression processes.
264  * See the comments with prepare_range_limit_table (in jdmaster.c)
265  * for more info.
266  * The recommended default value for normal applications is 2.
267  * Applications with special requirements may use a different value.
268  * For example, Ghostscript wants to use 3 for proper handling of
269  * wacky images with oversize coefficient values.
270  */
271 
272 #define RANGE_BITS 2
273 #define RANGE_CENTER (CENTERJSAMPLE << RANGE_BITS)
274 
275 
276 /* Miscellaneous useful macros */
277 
278 #undef MAX
279 #define MAX(a,b) ((a) > (b) ? (a) : (b))
280 #undef MIN
281 #define MIN(a,b) ((a) < (b) ? (a) : (b))
282 
283 
284 /* We assume that right shift corresponds to signed division by 2 with
285  * rounding towards minus infinity. This is correct for typical "arithmetic
286  * shift" instructions that shift in copies of the sign bit. But some
287  * C compilers implement >> with an unsigned shift. For these machines you
288  * must define RIGHT_SHIFT_IS_UNSIGNED.
289  * RIGHT_SHIFT provides a proper signed right shift of an INT32 quantity.
290  * It is only applied with constant shift counts. SHIFT_TEMPS must be
291  * included in the variables of any routine using RIGHT_SHIFT.
292  */
293 
294 #ifdef RIGHT_SHIFT_IS_UNSIGNED
295 #define SHIFT_TEMPS INT32 shift_temp;
296 #define RIGHT_SHIFT(x,shft) \
297  ((shift_temp = (x)) < 0 ? \
298  (shift_temp >> (shft)) | ((~((INT32) 0)) << (32-(shft))) : \
299  (shift_temp >> (shft)))
300 #else
301 #define SHIFT_TEMPS
302 #define RIGHT_SHIFT(x,shft) ((x) >> (shft))
303 #endif
304 
305 
306 /* Short forms of external names for systems with brain-damaged linkers. */
307 
308 #ifdef NEED_SHORT_EXTERNAL_NAMES
309 #define jinit_compress_master jICompress
310 #define jinit_c_master_control jICMaster
311 #define jinit_c_main_controller jICMainC
312 #define jinit_c_prep_controller jICPrepC
313 #define jinit_c_coef_controller jICCoefC
314 #define jinit_color_converter jICColor
315 #define jinit_downsampler jIDownsampler
316 #define jinit_forward_dct jIFDCT
317 #define jinit_huff_encoder jIHEncoder
318 #define jinit_arith_encoder jIAEncoder
319 #define jinit_marker_writer jIMWriter
320 #define jinit_master_decompress jIDMaster
321 #define jinit_d_main_controller jIDMainC
322 #define jinit_d_coef_controller jIDCoefC
323 #define jinit_d_post_controller jIDPostC
324 #define jinit_input_controller jIInCtlr
325 #define jinit_marker_reader jIMReader
326 #define jinit_huff_decoder jIHDecoder
327 #define jinit_arith_decoder jIADecoder
328 #define jinit_inverse_dct jIIDCT
329 #define jinit_upsampler jIUpsampler
330 #define jinit_color_deconverter jIDColor
331 #define jinit_1pass_quantizer jI1Quant
332 #define jinit_2pass_quantizer jI2Quant
333 #define jinit_merged_upsampler jIMUpsampler
334 #define jinit_memory_mgr jIMemMgr
335 #define jdiv_round_up jDivRound
336 #define jround_up jRound
337 #define jzero_far jZeroFar
338 #define jcopy_sample_rows jCopySamples
339 #define jcopy_block_row jCopyBlocks
340 #define jpeg_zigzag_order jZIGTable
341 #define jpeg_natural_order jZAGTable
342 #define jpeg_natural_order7 jZAG7Table
343 #define jpeg_natural_order6 jZAG6Table
344 #define jpeg_natural_order5 jZAG5Table
345 #define jpeg_natural_order4 jZAG4Table
346 #define jpeg_natural_order3 jZAG3Table
347 #define jpeg_natural_order2 jZAG2Table
348 #define jpeg_aritab jAriTab
349 #endif /* NEED_SHORT_EXTERNAL_NAMES */
350 
351 
352 /* On normal machines we can apply MEMCOPY() and MEMZERO() to sample arrays
353  * and coefficient-block arrays. This won't work on 80x86 because the arrays
354  * are FAR and we're assuming a small-pointer memory model. However, some
355  * DOS compilers provide far-pointer versions of memcpy() and memset() even
356  * in the small-model libraries. These will be used if USE_FMEM is defined.
357  * Otherwise, the routines in jutils.c do it the hard way.
358  */
359 
360 #ifndef NEED_FAR_POINTERS /* normal case, same as regular macro */
361 #define FMEMZERO(target,size) MEMZERO(target,size)
362 #else /* 80x86 case */
363 #ifdef USE_FMEM
364 #define FMEMZERO(target,size) _fmemset((void FAR *)(target), 0, (size_t)(size))
365 #else
366 EXTERN(void) jzero_far JPP((void FAR * target, size_t bytestozero));
367 #define FMEMZERO(target,size) jzero_far(target, size)
368 #endif
369 #endif
370 
371 
372 /* Compression module initialization routines */
375  boolean transcode_only));
377  boolean need_full_buffer));
379  boolean need_full_buffer));
381  boolean need_full_buffer));
388 /* Decompression module initialization routines */
391  boolean need_full_buffer));
393  boolean need_full_buffer));
395  boolean need_full_buffer));
403 EXTERN(void) jinit_1pass_quantizer JPP((j_decompress_ptr cinfo));
404 EXTERN(void) jinit_2pass_quantizer JPP((j_decompress_ptr cinfo));
405 EXTERN(void) jinit_merged_upsampler JPP((j_decompress_ptr cinfo));
406 /* Memory manager initialization */
407 EXTERN(void) jinit_memory_mgr JPP((j_common_ptr cinfo));
408 
409 /* Utility routines in jutils.c */
410 EXTERN(long) jdiv_round_up JPP((long a, long b));
411 EXTERN(long) jround_up JPP((long a, long b));
417 /* Constant tables in jutils.c */
418 #if 0 /* This table is not actually needed in v6a */
419 extern const int jpeg_zigzag_order[]; /* natural coef order to zigzag order */
420 #endif
421 extern const int jpeg_natural_order[]; /* zigzag coef order to natural order */
422 extern const int jpeg_natural_order7[]; /* zz to natural order for 7x7 block */
423 extern const int jpeg_natural_order6[]; /* zz to natural order for 6x6 block */
424 extern const int jpeg_natural_order5[]; /* zz to natural order for 5x5 block */
425 extern const int jpeg_natural_order4[]; /* zz to natural order for 4x4 block */
426 extern const int jpeg_natural_order3[]; /* zz to natural order for 3x3 block */
427 extern const int jpeg_natural_order2[]; /* zz to natural order for 2x2 block */
428 
429 /* Arithmetic coding probability estimation tables in jaricom.c */
430 extern const INT32 jpeg_aritab[];
431 
432 /* Suppress undefined-structure complaints if necessary. */
433 
434 #ifdef INCOMPLETE_TYPES_BROKEN
435 #ifndef AM_MEMORY_MANAGER /* only jmemmgr.c defines these */
436 struct jvirt_sarray_control { long dummy; };
437 struct jvirt_barray_control { long dummy; };
438 #endif
439 #endif /* INCOMPLETE_TYPES_BROKEN */
JMETHOD(void, prepare_for_pass,(j_compress_ptr cinfo))
boolean has_multiple_scans
Definition: jpegint.h:156
typedef JMETHOD(void, forward_DCT_ptr,(j_compress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY sample_data, JBLOCKROW coef_blocks, JDIMENSION start_row, JDIMENSION start_col, JDIMENSION num_blocks))
write_file_header(j_compress_ptr cinfo)
Definition: jcmarker.c:519
start_input_pass(j_decompress_ptr cinfo)
Definition: jdcoefct.c:108
jinit_d_main_controller(j_decompress_ptr cinfo, boolean need_full_buffer)
Definition: jdmainct.c:469
write_scan_header(j_compress_ptr cinfo)
Definition: jcmarker.c:613
int process_data(const void *FileData, size_t offset)
Definition: raddr2line.c:104
unsigned int discarded_bytes
Definition: jpegint.h:208
JMETHOD(void, start_pass,(j_compress_ptr cinfo))
boolean is_dummy_pass
Definition: jpegint.h:145
jinit_c_main_controller(j_compress_ptr cinfo, boolean need_full_buffer)
Definition: jcmainct.c:248
jinit_input_controller(j_decompress_ptr cinfo)
Definition: jdinput.c:642
const int jpeg_natural_order2[]
Definition: jutils.c:112
jpeg_component_info JCOEFPTR coef_block
Definition: jdct.h:238
JMETHOD(void, start_pass,(j_decompress_ptr cinfo, J_BUF_MODE pass_mode))
inverse_DCT_method_ptr inverse_DCT[MAX_COMPONENTS]
Definition: jpegint.h:227
JMETHOD(void, write_file_header,(j_compress_ptr cinfo))
const int jpeg_natural_order[]
Definition: jutils.c:54
JSAMPARRAY JDIMENSION start_col
Definition: jdct.h:169
compress_data(j_compress_ptr cinfo, JSAMPIMAGE input_buf)
Definition: jccoefct.c:144
jinit_d_coef_controller(j_decompress_ptr cinfo, boolean need_full_buffer)
Definition: jdcoefct.c:678
#define MAX_COMPONENTS
Definition: jmorecfg.h:45
JMETHOD(void, prepare_for_output_pass,(j_decompress_ptr cinfo))
Definition: jpegint.h:180
jvirt_barray_ptr * coef_arrays
Definition: jpegint.h:176
jinit_d_post_controller(j_decompress_ptr cinfo, boolean need_full_buffer)
Definition: jdpostct.c:250
int const JOCTET unsigned int datalen
Definition: jpeglib.h:1027
jinit_upsampler(j_decompress_ptr cinfo)
Definition: jdsample.c:294
const int jpeg_natural_order6[]
Definition: jutils.c:79
boolean need_full_buffer
Definition: jpegint.h:377
jinit_color_deconverter(j_decompress_ptr cinfo)
Definition: jdcolor.c:575
write_file_trailer(j_compress_ptr cinfo)
Definition: jcmarker.c:657
boolean call_pass_startup
Definition: jpegint.h:52
JMETHOD(void, start_pass,(j_compress_ptr cinfo, J_BUF_MODE pass_mode))
jinit_forward_dct(j_compress_ptr cinfo)
Definition: jcdctmgr.c:458
jpeg_component_info * compptr
Definition: jdct.h:238
JMETHOD(void, start_pass,(j_decompress_ptr cinfo))
write_marker_byte(j_compress_ptr cinfo, int val)
Definition: jcmarker.c:500
finish_pass(j_compress_ptr cinfo)
Definition: jcarith.c:133
boolean is_last_pass
Definition: jpegint.h:53
forward_DCT_ptr forward_DCT[MAX_COMPONENTS]
Definition: jpegint.h:112
const int jpeg_natural_order7[]
Definition: jutils.c:67
#define FAR
Definition: guiddef.h:36
jround_up(long a, long b)
Definition: jutils.c:133
jpeg_component_info JCOEFPTR JSAMPARRAY JDIMENSION output_col
Definition: jdct.h:238
JMETHOD(void, start_pass,(j_compress_ptr cinfo, J_BUF_MODE pass_mode))
int JSAMPARRAY int dest_row
Definition: jpegint.h:412
const INT32 jpeg_aritab[]
Definition: jaricom.c:31
int marker
Definition: jpeglib.h:1027
finish_output_pass(j_decompress_ptr cinfo)
Definition: jdmaster.c:479
JMETHOD(void, start_pass,(j_compress_ptr cinfo, J_BUF_MODE pass_mode))
write_marker_header(j_compress_ptr cinfo, int marker, unsigned int datalen)
Definition: jcmarker.c:488
JMETHOD(void, start_pass,(j_decompress_ptr cinfo, J_BUF_MODE pass_mode))
jinit_color_converter(j_compress_ptr cinfo)
Definition: jccolor.c:438
JBLOCKROW JDIMENSION num_blocks
Definition: jpegint.h:415
const int jpeg_natural_order4[]
Definition: jutils.c:98
GLuint GLfloat * val
Definition: glext.h:7180
JMETHOD(void, reset_marker_reader,(j_decompress_ptr cinfo))
jinit_downsampler(j_compress_ptr cinfo)
Definition: jcsample.c:478
start_output_pass(j_decompress_ptr cinfo)
Definition: jdcoefct.c:120
boolean saw_SOF
Definition: jpegint.h:206
GLboolean GLboolean GLboolean b
Definition: glext.h:6204
int source_row
Definition: jpegint.h:412
jinit_memory_mgr(j_common_ptr cinfo)
Definition: jmemmgr.c:1029
jinit_arith_encoder(j_compress_ptr cinfo)
Definition: jcarith.c:924
reset_input_controller(j_decompress_ptr cinfo)
Definition: jdinput.c:620
jinit_arith_decoder(j_decompress_ptr cinfo)
Definition: jdarith.c:764
JBLOCKROW output_row
Definition: jpegint.h:415
JMETHOD(void, start_pass,(j_compress_ptr cinfo, boolean gather_statistics))
JMETHOD(void, start_pass,(j_decompress_ptr cinfo))
jdiv_round_up(long a, long b)
Definition: jutils.c:124
JBLOCK FAR * JBLOCKROW
Definition: jpeglib.h:80
int JSAMPARRAY int int num_rows
Definition: jpegint.h:412
int JSAMPARRAY int int JDIMENSION num_cols
Definition: jpegint.h:412
JMETHOD(void, start_pass,(j_decompress_ptr cinfo, boolean is_pre_scan))
JCOEF FAR * JCOEFPTR
Definition: jpeglib.h:84
JMETHOD(void, start_pass,(j_decompress_ptr cinfo))
encode_mcu(j_compress_ptr cinfo, JBLOCKROW *MCU_data)
Definition: jcarith.c:692
jinit_master_decompress(j_decompress_ptr cinfo)
Definition: jdmaster.c:524
#define JPP(arglist)
Definition: jpeglib.h:877
jinit_huff_encoder(j_compress_ptr cinfo)
Definition: jchuff.c:1554
JSAMPARRAY * JSAMPIMAGE
Definition: jpeglib.h:77
JMETHOD(void, start_pass,(j_compress_ptr cinfo))
pass_startup(j_compress_ptr cinfo)
Definition: jcmaster.c:565
pre_process_data(j_compress_ptr cinfo, JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail, JSAMPIMAGE output_buf, JDIMENSION *out_row_group_ctr, JDIMENSION out_row_groups_avail)
Definition: jcprepct.c:128
write_tables_only(j_compress_ptr cinfo)
Definition: jcmarker.c:671
finish_input_pass(j_decompress_ptr cinfo)
Definition: jdinput.c:538
JSAMPROW * JSAMPARRAY
Definition: jpeglib.h:76
reset_marker_reader(j_decompress_ptr cinfo)
Definition: jdmarker.c:1393
const int jpeg_natural_order3[]
Definition: jutils.c:105
unsigned char dummy
Definition: maze.c:118
static const int jpeg_zigzag_order[8][8]
Definition: jdhuff.c:260
write_frame_header(j_compress_ptr cinfo)
Definition: jcmarker.c:545
jinit_marker_writer(j_compress_ptr cinfo)
Definition: jcmarker.c:700
JMETHOD(int, consume_input,(j_decompress_ptr cinfo))
J_BUF_MODE
Definition: jpegint.h:17
JMETHOD(void, start_input_pass,(j_decompress_ptr cinfo))
boolean need_context_rows
Definition: jpegint.h:241
read_markers(j_decompress_ptr cinfo)
Definition: jdmarker.c:1094
const int jpeg_natural_order5[]
Definition: jutils.c:89
jcopy_block_row(JBLOCKROW input_row, JBLOCKROW output_row, JDIMENSION num_blocks)
Definition: jutils.c:211
jinit_c_master_control(j_compress_ptr cinfo, boolean transcode_only)
Definition: jcmaster.c:619
jinit_marker_reader(j_decompress_ptr cinfo)
Definition: jdmarker.c:1413
jpeg_component_info JCOEFPTR JSAMPARRAY output_buf
Definition: jdct.h:238
unsigned int JDIMENSION
Definition: jmorecfg.h:229
JMETHOD(void, start_pass,(j_compress_ptr cinfo))
jinit_inverse_dct(j_decompress_ptr cinfo)
Definition: jddctmgr.c:362
GLenum target
Definition: glext.h:7315
jinit_compress_master(j_compress_ptr cinfo)
Definition: jcinit.c:193
signed int INT32
EXTERN(void) jinit_compress_master JPP((j_compress_ptr cinfo))
JSAMPARRAY sample_data
Definition: jdct.h:169
prepare_for_output_pass(j_decompress_ptr cinfo)
Definition: jdmaster.c:419
GLboolean GLboolean GLboolean GLboolean a
Definition: glext.h:6204
start_pass(j_compress_ptr cinfo, boolean gather_statistics)
Definition: jcarith.c:841
jpeg_marker_parser_method read_restart_marker
Definition: jpegint.h:200
jcopy_sample_rows(JSAMPARRAY input_array, int source_row, JSAMPARRAY output_array, int dest_row, int num_rows, JDIMENSION num_cols)
Definition: jutils.c:177
int JSAMPARRAY output_array
Definition: jpegint.h:412
jinit_c_coef_controller(j_compress_ptr cinfo, boolean need_full_buffer)
Definition: jccoefct.c:410
prepare_for_pass(j_compress_ptr cinfo)
Definition: jcmaster.c:477
jinit_c_prep_controller(j_compress_ptr cinfo, boolean need_full_buffer)
Definition: jcprepct.c:318
boolean saw_SOI
Definition: jpegint.h:205
decode_mcu(j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
Definition: jdarith.c:511
boolean need_context_rows
Definition: jpegint.h:99
JMETHOD(void, start_pass,(j_decompress_ptr cinfo))
boolean transcode_only
Definition: jpegint.h:375
jinit_huff_decoder(j_decompress_ptr cinfo)
Definition: jdhuff.c:1520