VK_RZ_A1H_LCD_demo - Lcd companion boards support (VKLCD50RTA & VKLCD7…

Vekatech » Code » VK_RZ_A1H_LCD_demo

Lcd companion boards support (VKLCD50RTA & VKLCD70RT)

What is this ?

This is a demo program using Renesas RGA library & USB Camera to demonstrate VK-RZ/A1H's companion boards workability.

Supported companion Boards:

VKLCD50RTA

/media/uploads/tvendov/front_view_hmi_50.png /media/uploads/tvendov/side_view_hmi_50.png

VKLCD70RT

/media/uploads/tvendov/front_view_hmi_70.png /media/uploads/tvendov/side_view_hmi_70.png /media/uploads/tvendov/back_view_lvds.png

How to Configure ?

You can choose which display is installed by altering the lcd_panel.h file

Leave the active one & comment out the others:

#define     LCD_VDC5_CH0_PANEL                  LCD_CH0_PANEL_VKLCD50RTA
//#define     LCD_VDC5_CH0_PANEL                  LCD_CH0_PANEL_VKLCD70RT

You can alter the whole demo with your pictures if you like:

How to compile ?

The Demo can be compiled in 3 modes:
- I. Execution from the internal 10-MB on-chip SRAM.
  - After import in the online compiler just leave only the VKRZA1H_RAM.sct & delete all others linker files in the TOOLCHAIN_ARM_STD folder.
  - Save the result binary in the SD Card (<SD>:\vkrza1\lcd_sample ), altering vkrza1h.ini by this way
- II. Execution from the on-board serial FALSH in dual (32-MB) mode.
  - After import in the online compiler just leave only the VKRZA1H_DOUBLE.sct & delete all others linker files in the TOOLCHAIN_ARM_STD folder.
  - Drag & drop the result binary in MBED disk, (previously inited in double flash mode)
- III. Execution from the on-board serial FALSH in single (16-MB) mode.
  - After import in the online compiler just leave only the VKRZA1H_SINGLE.sct & delete all others linker files in the TOOLCHAIN_ARM_STD folder.
  - Drag & drop the result binary in MBED disk, (previously inited in single flash mode )

Quick presentation:

Other demos ?

More demos you can find on our FTP

USB/uvc/jpeglib.h@0:6435b67ad23c, 2017-02-16 (annotated)

Committer:: tvendov
Date:: Thu Feb 16 10:23:48 2017 +0000
Revision:: 0:6435b67ad23c

Initial lcd support (VKLCD50RTA & VKLCD70RT companion boards)

Who changed what in which revision?

User	Revision	Line number	New contents of line
tvendov	0:6435b67ad23c	1	/*
tvendov	0:6435b67ad23c	2	* jpeglib.h
tvendov	0:6435b67ad23c	3	*
tvendov	0:6435b67ad23c	4	* Copyright (C) 1991-1998, Thomas G. Lane.
tvendov	0:6435b67ad23c	5	* Modified 2002-2013 by Guido Vollbeding.
tvendov	0:6435b67ad23c	6	* This file is part of the Independent JPEG Group's software.
tvendov	0:6435b67ad23c	7	* For conditions of distribution and use, see the accompanying README file.
tvendov	0:6435b67ad23c	8	*
tvendov	0:6435b67ad23c	9	* This file defines the application interface for the JPEG library.
tvendov	0:6435b67ad23c	10	* Most applications using the library need only include this file,
tvendov	0:6435b67ad23c	11	* and perhaps jerror.h if they want to know the exact error codes.
tvendov	0:6435b67ad23c	12	*/
tvendov	0:6435b67ad23c	13
tvendov	0:6435b67ad23c	14	#ifndef JPEGLIB_H
tvendov	0:6435b67ad23c	15	#define JPEGLIB_H
tvendov	0:6435b67ad23c	16
tvendov	0:6435b67ad23c	17	/*
tvendov	0:6435b67ad23c	18	* First we include the configuration files that record how this
tvendov	0:6435b67ad23c	19	* installation of the JPEG library is set up. jconfig.h can be
tvendov	0:6435b67ad23c	20	* generated automatically for many systems. jmorecfg.h contains
tvendov	0:6435b67ad23c	21	* manual configuration options that most people need not worry about.
tvendov	0:6435b67ad23c	22	*/
tvendov	0:6435b67ad23c	23
tvendov	0:6435b67ad23c	24	#ifndef JCONFIG_INCLUDED /* in case jinclude.h already did */
tvendov	0:6435b67ad23c	25	#include "jconfig.h" /* widely used configuration options */
tvendov	0:6435b67ad23c	26	#endif
tvendov	0:6435b67ad23c	27	#include "jmorecfg.h" /* seldom changed options */
tvendov	0:6435b67ad23c	28
tvendov	0:6435b67ad23c	29
tvendov	0:6435b67ad23c	30	#ifdef __cplusplus
tvendov	0:6435b67ad23c	31	#ifndef DONT_USE_EXTERN_C
tvendov	0:6435b67ad23c	32	extern "C" {
tvendov	0:6435b67ad23c	33	#endif
tvendov	0:6435b67ad23c	34	#endif
tvendov	0:6435b67ad23c	35
tvendov	0:6435b67ad23c	36	/* Version IDs for the JPEG library.
tvendov	0:6435b67ad23c	37	* Might be useful for tests like "#if JPEG_LIB_VERSION >= 90".
tvendov	0:6435b67ad23c	38	*/
tvendov	0:6435b67ad23c	39
tvendov	0:6435b67ad23c	40	#define JPEG_LIB_VERSION 90 /* Compatibility version 9.0 */
tvendov	0:6435b67ad23c	41	#define JPEG_LIB_VERSION_MAJOR 9
tvendov	0:6435b67ad23c	42	#define JPEG_LIB_VERSION_MINOR 1
tvendov	0:6435b67ad23c	43
tvendov	0:6435b67ad23c	44
tvendov	0:6435b67ad23c	45	/* Various constants determining the sizes of things.
tvendov	0:6435b67ad23c	46	* All of these are specified by the JPEG standard,
tvendov	0:6435b67ad23c	47	* so don't change them if you want to be compatible.
tvendov	0:6435b67ad23c	48	*/
tvendov	0:6435b67ad23c	49
tvendov	0:6435b67ad23c	50	#define DCTSIZE 8 /* The basic DCT block is 8x8 coefficients */
tvendov	0:6435b67ad23c	51	#define DCTSIZE2 64 /* DCTSIZE squared; # of elements in a block */
tvendov	0:6435b67ad23c	52	#define NUM_QUANT_TBLS 4 /* Quantization tables are numbered 0..3 */
tvendov	0:6435b67ad23c	53	#define NUM_HUFF_TBLS 4 /* Huffman tables are numbered 0..3 */
tvendov	0:6435b67ad23c	54	#define NUM_ARITH_TBLS 16 /* Arith-coding tables are numbered 0..15 */
tvendov	0:6435b67ad23c	55	#define MAX_COMPS_IN_SCAN 4 /* JPEG limit on # of components in one scan */
tvendov	0:6435b67ad23c	56	#define MAX_SAMP_FACTOR 4 /* JPEG limit on sampling factors */
tvendov	0:6435b67ad23c	57	/* Unfortunately, some bozo at Adobe saw no reason to be bound by the standard;
tvendov	0:6435b67ad23c	58	* the PostScript DCT filter can emit files with many more than 10 blocks/MCU.
tvendov	0:6435b67ad23c	59	* If you happen to run across such a file, you can up D_MAX_BLOCKS_IN_MCU
tvendov	0:6435b67ad23c	60	* to handle it. We even let you do this from the jconfig.h file. However,
tvendov	0:6435b67ad23c	61	* we strongly discourage changing C_MAX_BLOCKS_IN_MCU; just because Adobe
tvendov	0:6435b67ad23c	62	* sometimes emits noncompliant files doesn't mean you should too.
tvendov	0:6435b67ad23c	63	*/
tvendov	0:6435b67ad23c	64	#define C_MAX_BLOCKS_IN_MCU 10 /* compressor's limit on blocks per MCU */
tvendov	0:6435b67ad23c	65	#ifndef D_MAX_BLOCKS_IN_MCU
tvendov	0:6435b67ad23c	66	#define D_MAX_BLOCKS_IN_MCU 10 /* decompressor's limit on blocks per MCU */
tvendov	0:6435b67ad23c	67	#endif
tvendov	0:6435b67ad23c	68
tvendov	0:6435b67ad23c	69
tvendov	0:6435b67ad23c	70	/* Data structures for images (arrays of samples and of DCT coefficients).
tvendov	0:6435b67ad23c	71	* On 80x86 machines, the image arrays are too big for near pointers,
tvendov	0:6435b67ad23c	72	* but the pointer arrays can fit in near memory.
tvendov	0:6435b67ad23c	73	*/
tvendov	0:6435b67ad23c	74
tvendov	0:6435b67ad23c	75	typedef JSAMPLE FAR JSAMPROW; / ptr to one image row of pixel samples. */
tvendov	0:6435b67ad23c	76	typedef JSAMPROW JSAMPARRAY; / ptr to some rows (a 2-D sample array) */
tvendov	0:6435b67ad23c	77	typedef JSAMPARRAY JSAMPIMAGE; / a 3-D sample array: top index is color */
tvendov	0:6435b67ad23c	78
tvendov	0:6435b67ad23c	79	typedef JCOEF JBLOCK[DCTSIZE2]; /* one block of coefficients */
tvendov	0:6435b67ad23c	80	typedef JBLOCK FAR JBLOCKROW; / pointer to one row of coefficient blocks */
tvendov	0:6435b67ad23c	81	typedef JBLOCKROW JBLOCKARRAY; / a 2-D array of coefficient blocks */
tvendov	0:6435b67ad23c	82	typedef JBLOCKARRAY JBLOCKIMAGE; / a 3-D array of coefficient blocks */
tvendov	0:6435b67ad23c	83
tvendov	0:6435b67ad23c	84	typedef JCOEF FAR JCOEFPTR; / useful in a couple of places */
tvendov	0:6435b67ad23c	85
tvendov	0:6435b67ad23c	86
tvendov	0:6435b67ad23c	87	/* Types for JPEG compression parameters and working tables. */
tvendov	0:6435b67ad23c	88
tvendov	0:6435b67ad23c	89
tvendov	0:6435b67ad23c	90	/* DCT coefficient quantization tables. */
tvendov	0:6435b67ad23c	91
tvendov	0:6435b67ad23c	92	typedef struct {
tvendov	0:6435b67ad23c	93	/* This array gives the coefficient quantizers in natural array order
tvendov	0:6435b67ad23c	94	* (not the zigzag order in which they are stored in a JPEG DQT marker).
tvendov	0:6435b67ad23c	95	* CAUTION: IJG versions prior to v6a kept this array in zigzag order.
tvendov	0:6435b67ad23c	96	*/
tvendov	0:6435b67ad23c	97	UINT16 quantval[DCTSIZE2]; /* quantization step for each coefficient */
tvendov	0:6435b67ad23c	98	/* This field is used only during compression. It's initialized FALSE when
tvendov	0:6435b67ad23c	99	* the table is created, and set TRUE when it's been output to the file.
tvendov	0:6435b67ad23c	100	* You could suppress output of a table by setting this to TRUE.
tvendov	0:6435b67ad23c	101	* (See jpeg_suppress_tables for an example.)
tvendov	0:6435b67ad23c	102	*/
tvendov	0:6435b67ad23c	103	boolean sent_table; /* TRUE when table has been output */
tvendov	0:6435b67ad23c	104	} JQUANT_TBL;
tvendov	0:6435b67ad23c	105
tvendov	0:6435b67ad23c	106
tvendov	0:6435b67ad23c	107	/* Huffman coding tables. */
tvendov	0:6435b67ad23c	108
tvendov	0:6435b67ad23c	109	typedef struct {
tvendov	0:6435b67ad23c	110	/* These two fields directly represent the contents of a JPEG DHT marker */
tvendov	0:6435b67ad23c	111	UINT8 bits[17]; /* bits[k] = # of symbols with codes of */
tvendov	0:6435b67ad23c	112	/* length k bits; bits[0] is unused */
tvendov	0:6435b67ad23c	113	UINT8 huffval[256]; /* The symbols, in order of incr code length */
tvendov	0:6435b67ad23c	114	/* This field is used only during compression. It's initialized FALSE when
tvendov	0:6435b67ad23c	115	* the table is created, and set TRUE when it's been output to the file.
tvendov	0:6435b67ad23c	116	* You could suppress output of a table by setting this to TRUE.
tvendov	0:6435b67ad23c	117	* (See jpeg_suppress_tables for an example.)
tvendov	0:6435b67ad23c	118	*/
tvendov	0:6435b67ad23c	119	boolean sent_table; /* TRUE when table has been output */
tvendov	0:6435b67ad23c	120	} JHUFF_TBL;
tvendov	0:6435b67ad23c	121
tvendov	0:6435b67ad23c	122
tvendov	0:6435b67ad23c	123	/* Basic info about one component (color channel). */
tvendov	0:6435b67ad23c	124
tvendov	0:6435b67ad23c	125	typedef struct {
tvendov	0:6435b67ad23c	126	/* These values are fixed over the whole image. */
tvendov	0:6435b67ad23c	127	/* For compression, they must be supplied by parameter setup; */
tvendov	0:6435b67ad23c	128	/* for decompression, they are read from the SOF marker. */
tvendov	0:6435b67ad23c	129	int component_id; /* identifier for this component (0..255) */
tvendov	0:6435b67ad23c	130	int component_index; /* its index in SOF or cinfo->comp_info[] */
tvendov	0:6435b67ad23c	131	int h_samp_factor; /* horizontal sampling factor (1..4) */
tvendov	0:6435b67ad23c	132	int v_samp_factor; /* vertical sampling factor (1..4) */
tvendov	0:6435b67ad23c	133	int quant_tbl_no; /* quantization table selector (0..3) */
tvendov	0:6435b67ad23c	134	/* These values may vary between scans. */
tvendov	0:6435b67ad23c	135	/* For compression, they must be supplied by parameter setup; */
tvendov	0:6435b67ad23c	136	/* for decompression, they are read from the SOS marker. */
tvendov	0:6435b67ad23c	137	/* The decompressor output side may not use these variables. */
tvendov	0:6435b67ad23c	138	int dc_tbl_no; /* DC entropy table selector (0..3) */
tvendov	0:6435b67ad23c	139	int ac_tbl_no; /* AC entropy table selector (0..3) */
tvendov	0:6435b67ad23c	140
tvendov	0:6435b67ad23c	141	/* Remaining fields should be treated as private by applications. */
tvendov	0:6435b67ad23c	142
tvendov	0:6435b67ad23c	143	/* These values are computed during compression or decompression startup: */
tvendov	0:6435b67ad23c	144	/* Component's size in DCT blocks.
tvendov	0:6435b67ad23c	145	* Any dummy blocks added to complete an MCU are not counted; therefore
tvendov	0:6435b67ad23c	146	* these values do not depend on whether a scan is interleaved or not.
tvendov	0:6435b67ad23c	147	*/
tvendov	0:6435b67ad23c	148	JDIMENSION width_in_blocks;
tvendov	0:6435b67ad23c	149	JDIMENSION height_in_blocks;
tvendov	0:6435b67ad23c	150	/* Size of a DCT block in samples,
tvendov	0:6435b67ad23c	151	* reflecting any scaling we choose to apply during the DCT step.
tvendov	0:6435b67ad23c	152	* Values from 1 to 16 are supported.
tvendov	0:6435b67ad23c	153	* Note that different components may receive different DCT scalings.
tvendov	0:6435b67ad23c	154	*/
tvendov	0:6435b67ad23c	155	int DCT_h_scaled_size;
tvendov	0:6435b67ad23c	156	int DCT_v_scaled_size;
tvendov	0:6435b67ad23c	157	/* The downsampled dimensions are the component's actual, unpadded number
tvendov	0:6435b67ad23c	158	* of samples at the main buffer (preprocessing/compression interface);
tvendov	0:6435b67ad23c	159	* DCT scaling is included, so
tvendov	0:6435b67ad23c	160	* downsampled_width =
tvendov	0:6435b67ad23c	161	* ceil(image_width * Hi/Hmax * DCT_h_scaled_size/block_size)
tvendov	0:6435b67ad23c	162	* and similarly for height.
tvendov	0:6435b67ad23c	163	*/
tvendov	0:6435b67ad23c	164	JDIMENSION downsampled_width; /* actual width in samples */
tvendov	0:6435b67ad23c	165	JDIMENSION downsampled_height; /* actual height in samples */
tvendov	0:6435b67ad23c	166	/* For decompression, in cases where some of the components will be
tvendov	0:6435b67ad23c	167	* ignored (eg grayscale output from YCbCr image), we can skip most
tvendov	0:6435b67ad23c	168	* computations for the unused components.
tvendov	0:6435b67ad23c	169	* For compression, some of the components will need further quantization
tvendov	0:6435b67ad23c	170	* scale by factor of 2 after DCT (eg BG_YCC output from normal RGB input).
tvendov	0:6435b67ad23c	171	* The field is first set TRUE for decompression, FALSE for compression
tvendov	0:6435b67ad23c	172	* in initial_setup, and then adapted in color conversion setup.
tvendov	0:6435b67ad23c	173	*/
tvendov	0:6435b67ad23c	174	boolean component_needed;
tvendov	0:6435b67ad23c	175
tvendov	0:6435b67ad23c	176	/* These values are computed before starting a scan of the component. */
tvendov	0:6435b67ad23c	177	/* The decompressor output side may not use these variables. */
tvendov	0:6435b67ad23c	178	int MCU_width; /* number of blocks per MCU, horizontally */
tvendov	0:6435b67ad23c	179	int MCU_height; /* number of blocks per MCU, vertically */
tvendov	0:6435b67ad23c	180	int MCU_blocks; /* MCU_width * MCU_height */
tvendov	0:6435b67ad23c	181	int MCU_sample_width; /* MCU width in samples: MCU_width * DCT_h_scaled_size */
tvendov	0:6435b67ad23c	182	int last_col_width; /* # of non-dummy blocks across in last MCU */
tvendov	0:6435b67ad23c	183	int last_row_height; /* # of non-dummy blocks down in last MCU */
tvendov	0:6435b67ad23c	184
tvendov	0:6435b67ad23c	185	/* Saved quantization table for component; NULL if none yet saved.
tvendov	0:6435b67ad23c	186	* See jdinput.c comments about the need for this information.
tvendov	0:6435b67ad23c	187	* This field is currently used only for decompression.
tvendov	0:6435b67ad23c	188	*/
tvendov	0:6435b67ad23c	189	JQUANT_TBL * quant_table;
tvendov	0:6435b67ad23c	190
tvendov	0:6435b67ad23c	191	/* Private per-component storage for DCT or IDCT subsystem. */
tvendov	0:6435b67ad23c	192	void * dct_table;
tvendov	0:6435b67ad23c	193	} jpeg_component_info;
tvendov	0:6435b67ad23c	194
tvendov	0:6435b67ad23c	195
tvendov	0:6435b67ad23c	196	/* The script for encoding a multiple-scan file is an array of these: */
tvendov	0:6435b67ad23c	197
tvendov	0:6435b67ad23c	198	typedef struct {
tvendov	0:6435b67ad23c	199	int comps_in_scan; /* number of components encoded in this scan */
tvendov	0:6435b67ad23c	200	int component_index[MAX_COMPS_IN_SCAN]; /* their SOF/comp_info[] indexes */
tvendov	0:6435b67ad23c	201	int Ss, Se; /* progressive JPEG spectral selection parms */
tvendov	0:6435b67ad23c	202	int Ah, Al; /* progressive JPEG successive approx. parms */
tvendov	0:6435b67ad23c	203	} jpeg_scan_info;
tvendov	0:6435b67ad23c	204
tvendov	0:6435b67ad23c	205	/* The decompressor can save APPn and COM markers in a list of these: */
tvendov	0:6435b67ad23c	206
tvendov	0:6435b67ad23c	207	typedef struct jpeg_marker_struct FAR * jpeg_saved_marker_ptr;
tvendov	0:6435b67ad23c	208
tvendov	0:6435b67ad23c	209	struct jpeg_marker_struct {
tvendov	0:6435b67ad23c	210	jpeg_saved_marker_ptr next; /* next in list, or NULL */
tvendov	0:6435b67ad23c	211	UINT8 marker; /* marker code: JPEG_COM, or JPEG_APP0+n */
tvendov	0:6435b67ad23c	212	unsigned int original_length; /* # bytes of data in the file */
tvendov	0:6435b67ad23c	213	unsigned int data_length; /* # bytes of data saved at data[] */
tvendov	0:6435b67ad23c	214	JOCTET FAR * data; /* the data contained in the marker */
tvendov	0:6435b67ad23c	215	/* the marker length word is not counted in data_length or original_length */
tvendov	0:6435b67ad23c	216	};
tvendov	0:6435b67ad23c	217
tvendov	0:6435b67ad23c	218	/* Known color spaces. */
tvendov	0:6435b67ad23c	219
tvendov	0:6435b67ad23c	220	typedef enum {
tvendov	0:6435b67ad23c	221	JCS_UNKNOWN, /* error/unspecified */
tvendov	0:6435b67ad23c	222	JCS_GRAYSCALE, /* monochrome */
tvendov	0:6435b67ad23c	223	JCS_RGB, /* red/green/blue, standard RGB (sRGB) */
tvendov	0:6435b67ad23c	224	JCS_YCbCr, /* Y/Cb/Cr (also known as YUV), standard YCC */
tvendov	0:6435b67ad23c	225	JCS_CMYK, /* C/M/Y/K */
tvendov	0:6435b67ad23c	226	JCS_YCCK, /* Y/Cb/Cr/K */
tvendov	0:6435b67ad23c	227	JCS_BG_RGB, /* big gamut red/green/blue, bg-sRGB */
tvendov	0:6435b67ad23c	228	JCS_BG_YCC /* big gamut Y/Cb/Cr, bg-sYCC */
tvendov	0:6435b67ad23c	229	} J_COLOR_SPACE;
tvendov	0:6435b67ad23c	230
tvendov	0:6435b67ad23c	231	/* Supported color transforms. */
tvendov	0:6435b67ad23c	232
tvendov	0:6435b67ad23c	233	typedef enum {
tvendov	0:6435b67ad23c	234	JCT_NONE = 0,
tvendov	0:6435b67ad23c	235	JCT_SUBTRACT_GREEN = 1
tvendov	0:6435b67ad23c	236	} J_COLOR_TRANSFORM;
tvendov	0:6435b67ad23c	237
tvendov	0:6435b67ad23c	238	/* DCT/IDCT algorithm options. */
tvendov	0:6435b67ad23c	239
tvendov	0:6435b67ad23c	240	typedef enum {
tvendov	0:6435b67ad23c	241	JDCT_ISLOW, /* slow but accurate integer algorithm */
tvendov	0:6435b67ad23c	242	JDCT_IFAST, /* faster, less accurate integer method */
tvendov	0:6435b67ad23c	243	JDCT_FLOAT /* floating-point: accurate, fast on fast HW */
tvendov	0:6435b67ad23c	244	} J_DCT_METHOD;
tvendov	0:6435b67ad23c	245
tvendov	0:6435b67ad23c	246	#ifndef JDCT_DEFAULT /* may be overridden in jconfig.h */
tvendov	0:6435b67ad23c	247	#define JDCT_DEFAULT JDCT_ISLOW
tvendov	0:6435b67ad23c	248	#endif
tvendov	0:6435b67ad23c	249	#ifndef JDCT_FASTEST /* may be overridden in jconfig.h */
tvendov	0:6435b67ad23c	250	#define JDCT_FASTEST JDCT_IFAST
tvendov	0:6435b67ad23c	251	#endif
tvendov	0:6435b67ad23c	252
tvendov	0:6435b67ad23c	253	/* Dithering options for decompression. */
tvendov	0:6435b67ad23c	254
tvendov	0:6435b67ad23c	255	typedef enum {
tvendov	0:6435b67ad23c	256	JDITHER_NONE, /* no dithering */
tvendov	0:6435b67ad23c	257	JDITHER_ORDERED, /* simple ordered dither */
tvendov	0:6435b67ad23c	258	JDITHER_FS /* Floyd-Steinberg error diffusion dither */
tvendov	0:6435b67ad23c	259	} J_DITHER_MODE;
tvendov	0:6435b67ad23c	260
tvendov	0:6435b67ad23c	261
tvendov	0:6435b67ad23c	262	/* Common fields between JPEG compression and decompression master structs. */
tvendov	0:6435b67ad23c	263
tvendov	0:6435b67ad23c	264	#define jpeg_common_fields \
tvendov	0:6435b67ad23c	265	struct jpeg_error_mgr * err; /* Error handler module */\
tvendov	0:6435b67ad23c	266	struct jpeg_memory_mgr * mem; /* Memory manager module */\
tvendov	0:6435b67ad23c	267	struct jpeg_progress_mgr * progress; /* Progress monitor, or NULL if none */\
tvendov	0:6435b67ad23c	268	void * client_data; /* Available for use by application */\
tvendov	0:6435b67ad23c	269	boolean is_decompressor; /* So common code can tell which is which */\
tvendov	0:6435b67ad23c	270	int global_state /* For checking call sequence validity */
tvendov	0:6435b67ad23c	271
tvendov	0:6435b67ad23c	272	/* Routines that are to be used by both halves of the library are declared
tvendov	0:6435b67ad23c	273	* to receive a pointer to this structure. There are no actual instances of
tvendov	0:6435b67ad23c	274	* jpeg_common_struct, only of jpeg_compress_struct and jpeg_decompress_struct.
tvendov	0:6435b67ad23c	275	*/
tvendov	0:6435b67ad23c	276	struct jpeg_common_struct {
tvendov	0:6435b67ad23c	277	jpeg_common_fields; /* Fields common to both master struct types */
tvendov	0:6435b67ad23c	278	/* Additional fields follow in an actual jpeg_compress_struct or
tvendov	0:6435b67ad23c	279	* jpeg_decompress_struct. All three structs must agree on these
tvendov	0:6435b67ad23c	280	* initial fields! (This would be a lot cleaner in C++.)
tvendov	0:6435b67ad23c	281	*/
tvendov	0:6435b67ad23c	282	};
tvendov	0:6435b67ad23c	283
tvendov	0:6435b67ad23c	284	typedef struct jpeg_common_struct * j_common_ptr;
tvendov	0:6435b67ad23c	285	typedef struct jpeg_compress_struct * j_compress_ptr;
tvendov	0:6435b67ad23c	286	typedef struct jpeg_decompress_struct * j_decompress_ptr;
tvendov	0:6435b67ad23c	287
tvendov	0:6435b67ad23c	288
tvendov	0:6435b67ad23c	289	/* Master record for a compression instance */
tvendov	0:6435b67ad23c	290
tvendov	0:6435b67ad23c	291	struct jpeg_compress_struct {
tvendov	0:6435b67ad23c	292	jpeg_common_fields; /* Fields shared with jpeg_decompress_struct */
tvendov	0:6435b67ad23c	293
tvendov	0:6435b67ad23c	294	/* Destination for compressed data */
tvendov	0:6435b67ad23c	295	struct jpeg_destination_mgr * dest;
tvendov	0:6435b67ad23c	296
tvendov	0:6435b67ad23c	297	/* Description of source image --- these fields must be filled in by
tvendov	0:6435b67ad23c	298	* outer application before starting compression. in_color_space must
tvendov	0:6435b67ad23c	299	* be correct before you can even call jpeg_set_defaults().
tvendov	0:6435b67ad23c	300	*/
tvendov	0:6435b67ad23c	301
tvendov	0:6435b67ad23c	302	JDIMENSION image_width; /* input image width */
tvendov	0:6435b67ad23c	303	JDIMENSION image_height; /* input image height */
tvendov	0:6435b67ad23c	304	int input_components; /* # of color components in input image */
tvendov	0:6435b67ad23c	305	J_COLOR_SPACE in_color_space; /* colorspace of input image */
tvendov	0:6435b67ad23c	306
tvendov	0:6435b67ad23c	307	double input_gamma; /* image gamma of input image */
tvendov	0:6435b67ad23c	308
tvendov	0:6435b67ad23c	309	/* Compression parameters --- these fields must be set before calling
tvendov	0:6435b67ad23c	310	* jpeg_start_compress(). We recommend calling jpeg_set_defaults() to
tvendov	0:6435b67ad23c	311	* initialize everything to reasonable defaults, then changing anything
tvendov	0:6435b67ad23c	312	* the application specifically wants to change. That way you won't get
tvendov	0:6435b67ad23c	313	* burnt when new parameters are added. Also note that there are several
tvendov	0:6435b67ad23c	314	* helper routines to simplify changing parameters.
tvendov	0:6435b67ad23c	315	*/
tvendov	0:6435b67ad23c	316
tvendov	0:6435b67ad23c	317	unsigned int scale_num, scale_denom; /* fraction by which to scale image */
tvendov	0:6435b67ad23c	318
tvendov	0:6435b67ad23c	319	JDIMENSION jpeg_width; /* scaled JPEG image width */
tvendov	0:6435b67ad23c	320	JDIMENSION jpeg_height; /* scaled JPEG image height */
tvendov	0:6435b67ad23c	321	/* Dimensions of actual JPEG image that will be written to file,
tvendov	0:6435b67ad23c	322	* derived from input dimensions by scaling factors above.
tvendov	0:6435b67ad23c	323	* These fields are computed by jpeg_start_compress().
tvendov	0:6435b67ad23c	324	* You can also use jpeg_calc_jpeg_dimensions() to determine these values
tvendov	0:6435b67ad23c	325	* in advance of calling jpeg_start_compress().
tvendov	0:6435b67ad23c	326	*/
tvendov	0:6435b67ad23c	327
tvendov	0:6435b67ad23c	328	int data_precision; /* bits of precision in image data */
tvendov	0:6435b67ad23c	329
tvendov	0:6435b67ad23c	330	int num_components; /* # of color components in JPEG image */
tvendov	0:6435b67ad23c	331	J_COLOR_SPACE jpeg_color_space; /* colorspace of JPEG image */
tvendov	0:6435b67ad23c	332
tvendov	0:6435b67ad23c	333	jpeg_component_info * comp_info;
tvendov	0:6435b67ad23c	334	/* comp_info[i] describes component that appears i'th in SOF */
tvendov	0:6435b67ad23c	335
tvendov	0:6435b67ad23c	336	JQUANT_TBL * quant_tbl_ptrs[NUM_QUANT_TBLS];
tvendov	0:6435b67ad23c	337	int q_scale_factor[NUM_QUANT_TBLS];
tvendov	0:6435b67ad23c	338	/* ptrs to coefficient quantization tables, or NULL if not defined,
tvendov	0:6435b67ad23c	339	* and corresponding scale factors (percentage, initialized 100).
tvendov	0:6435b67ad23c	340	*/
tvendov	0:6435b67ad23c	341
tvendov	0:6435b67ad23c	342	JHUFF_TBL * dc_huff_tbl_ptrs[NUM_HUFF_TBLS];
tvendov	0:6435b67ad23c	343	JHUFF_TBL * ac_huff_tbl_ptrs[NUM_HUFF_TBLS];
tvendov	0:6435b67ad23c	344	/* ptrs to Huffman coding tables, or NULL if not defined */
tvendov	0:6435b67ad23c	345
tvendov	0:6435b67ad23c	346	UINT8 arith_dc_L[NUM_ARITH_TBLS]; /* L values for DC arith-coding tables */
tvendov	0:6435b67ad23c	347	UINT8 arith_dc_U[NUM_ARITH_TBLS]; /* U values for DC arith-coding tables */
tvendov	0:6435b67ad23c	348	UINT8 arith_ac_K[NUM_ARITH_TBLS]; /* Kx values for AC arith-coding tables */
tvendov	0:6435b67ad23c	349
tvendov	0:6435b67ad23c	350	int num_scans; /* # of entries in scan_info array */
tvendov	0:6435b67ad23c	351	const jpeg_scan_info * scan_info; /* script for multi-scan file, or NULL */
tvendov	0:6435b67ad23c	352	/* The default value of scan_info is NULL, which causes a single-scan
tvendov	0:6435b67ad23c	353	* sequential JPEG file to be emitted. To create a multi-scan file,
tvendov	0:6435b67ad23c	354	* set num_scans and scan_info to point to an array of scan definitions.
tvendov	0:6435b67ad23c	355	*/
tvendov	0:6435b67ad23c	356
tvendov	0:6435b67ad23c	357	boolean raw_data_in; /* TRUE=caller supplies downsampled data */
tvendov	0:6435b67ad23c	358	boolean arith_code; /* TRUE=arithmetic coding, FALSE=Huffman */
tvendov	0:6435b67ad23c	359	boolean optimize_coding; /* TRUE=optimize entropy encoding parms */
tvendov	0:6435b67ad23c	360	boolean CCIR601_sampling; /* TRUE=first samples are cosited */
tvendov	0:6435b67ad23c	361	boolean do_fancy_downsampling; /* TRUE=apply fancy downsampling */
tvendov	0:6435b67ad23c	362	int smoothing_factor; /* 1..100, or 0 for no input smoothing */
tvendov	0:6435b67ad23c	363	J_DCT_METHOD dct_method; /* DCT algorithm selector */
tvendov	0:6435b67ad23c	364
tvendov	0:6435b67ad23c	365	/* The restart interval can be specified in absolute MCUs by setting
tvendov	0:6435b67ad23c	366	* restart_interval, or in MCU rows by setting restart_in_rows
tvendov	0:6435b67ad23c	367	* (in which case the correct restart_interval will be figured
tvendov	0:6435b67ad23c	368	* for each scan).
tvendov	0:6435b67ad23c	369	*/
tvendov	0:6435b67ad23c	370	unsigned int restart_interval; /* MCUs per restart, or 0 for no restart */
tvendov	0:6435b67ad23c	371	int restart_in_rows; /* if > 0, MCU rows per restart interval */
tvendov	0:6435b67ad23c	372
tvendov	0:6435b67ad23c	373	/* Parameters controlling emission of special markers. */
tvendov	0:6435b67ad23c	374
tvendov	0:6435b67ad23c	375	boolean write_JFIF_header; /* should a JFIF marker be written? */
tvendov	0:6435b67ad23c	376	UINT8 JFIF_major_version; /* What to write for the JFIF version number */
tvendov	0:6435b67ad23c	377	UINT8 JFIF_minor_version;
tvendov	0:6435b67ad23c	378	/* These three values are not used by the JPEG code, merely copied */
tvendov	0:6435b67ad23c	379	/* into the JFIF APP0 marker. density_unit can be 0 for unknown, */
tvendov	0:6435b67ad23c	380	/* 1 for dots/inch, or 2 for dots/cm. Note that the pixel aspect */
tvendov	0:6435b67ad23c	381	/* ratio is defined by X_density/Y_density even when density_unit=0. */
tvendov	0:6435b67ad23c	382	UINT8 density_unit; /* JFIF code for pixel size units */
tvendov	0:6435b67ad23c	383	UINT16 X_density; /* Horizontal pixel density */
tvendov	0:6435b67ad23c	384	UINT16 Y_density; /* Vertical pixel density */
tvendov	0:6435b67ad23c	385	boolean write_Adobe_marker; /* should an Adobe marker be written? */
tvendov	0:6435b67ad23c	386
tvendov	0:6435b67ad23c	387	J_COLOR_TRANSFORM color_transform;
tvendov	0:6435b67ad23c	388	/* Color transform identifier, writes LSE marker if nonzero */
tvendov	0:6435b67ad23c	389
tvendov	0:6435b67ad23c	390	/* State variable: index of next scanline to be written to
tvendov	0:6435b67ad23c	391	* jpeg_write_scanlines(). Application may use this to control its
tvendov	0:6435b67ad23c	392	* processing loop, e.g., "while (next_scanline < image_height)".
tvendov	0:6435b67ad23c	393	*/
tvendov	0:6435b67ad23c	394
tvendov	0:6435b67ad23c	395	JDIMENSION next_scanline; /* 0 .. image_height-1 */
tvendov	0:6435b67ad23c	396
tvendov	0:6435b67ad23c	397	/* Remaining fields are known throughout compressor, but generally
tvendov	0:6435b67ad23c	398	* should not be touched by a surrounding application.
tvendov	0:6435b67ad23c	399	*/
tvendov	0:6435b67ad23c	400
tvendov	0:6435b67ad23c	401	/*
tvendov	0:6435b67ad23c	402	* These fields are computed during compression startup
tvendov	0:6435b67ad23c	403	*/
tvendov	0:6435b67ad23c	404	boolean progressive_mode; /* TRUE if scan script uses progressive mode */
tvendov	0:6435b67ad23c	405	int max_h_samp_factor; /* largest h_samp_factor */
tvendov	0:6435b67ad23c	406	int max_v_samp_factor; /* largest v_samp_factor */
tvendov	0:6435b67ad23c	407
tvendov	0:6435b67ad23c	408	int min_DCT_h_scaled_size; /* smallest DCT_h_scaled_size of any component */
tvendov	0:6435b67ad23c	409	int min_DCT_v_scaled_size; /* smallest DCT_v_scaled_size of any component */
tvendov	0:6435b67ad23c	410
tvendov	0:6435b67ad23c	411	JDIMENSION total_iMCU_rows; /* # of iMCU rows to be input to coef ctlr */
tvendov	0:6435b67ad23c	412	/* The coefficient controller receives data in units of MCU rows as defined
tvendov	0:6435b67ad23c	413	* for fully interleaved scans (whether the JPEG file is interleaved or not).
tvendov	0:6435b67ad23c	414	* There are v_samp_factor * DCTSIZE sample rows of each component in an
tvendov	0:6435b67ad23c	415	* "iMCU" (interleaved MCU) row.
tvendov	0:6435b67ad23c	416	*/
tvendov	0:6435b67ad23c	417
tvendov	0:6435b67ad23c	418	/*
tvendov	0:6435b67ad23c	419	* These fields are valid during any one scan.
tvendov	0:6435b67ad23c	420	* They describe the components and MCUs actually appearing in the scan.
tvendov	0:6435b67ad23c	421	*/
tvendov	0:6435b67ad23c	422	int comps_in_scan; /* # of JPEG components in this scan */
tvendov	0:6435b67ad23c	423	jpeg_component_info * cur_comp_info[MAX_COMPS_IN_SCAN];
tvendov	0:6435b67ad23c	424	/* cur_comp_info[i] describes component that appears i'th in SOS /
tvendov	0:6435b67ad23c	425
tvendov	0:6435b67ad23c	426	JDIMENSION MCUs_per_row; /* # of MCUs across the image */
tvendov	0:6435b67ad23c	427	JDIMENSION MCU_rows_in_scan; /* # of MCU rows in the image */
tvendov	0:6435b67ad23c	428
tvendov	0:6435b67ad23c	429	int blocks_in_MCU; /* # of DCT blocks per MCU */
tvendov	0:6435b67ad23c	430	int MCU_membership[C_MAX_BLOCKS_IN_MCU];
tvendov	0:6435b67ad23c	431	/* MCU_membership[i] is index in cur_comp_info of component owning */
tvendov	0:6435b67ad23c	432	/* i'th block in an MCU */
tvendov	0:6435b67ad23c	433
tvendov	0:6435b67ad23c	434	int Ss, Se, Ah, Al; /* progressive JPEG parameters for scan */
tvendov	0:6435b67ad23c	435
tvendov	0:6435b67ad23c	436	int block_size; /* the basic DCT block size: 1..16 */
tvendov	0:6435b67ad23c	437	const int * natural_order; /* natural-order position array */
tvendov	0:6435b67ad23c	438	int lim_Se; /* min( Se, DCTSIZE2-1 ) */
tvendov	0:6435b67ad23c	439
tvendov	0:6435b67ad23c	440	/*
tvendov	0:6435b67ad23c	441	* Links to compression subobjects (methods and private variables of modules)
tvendov	0:6435b67ad23c	442	*/
tvendov	0:6435b67ad23c	443	struct jpeg_comp_master * master;
tvendov	0:6435b67ad23c	444	struct jpeg_c_main_controller * main;
tvendov	0:6435b67ad23c	445	struct jpeg_c_prep_controller * prep;
tvendov	0:6435b67ad23c	446	struct jpeg_c_coef_controller * coef;
tvendov	0:6435b67ad23c	447	struct jpeg_marker_writer * marker;
tvendov	0:6435b67ad23c	448	struct jpeg_color_converter * cconvert;
tvendov	0:6435b67ad23c	449	struct jpeg_downsampler * downsample;
tvendov	0:6435b67ad23c	450	struct jpeg_forward_dct * fdct;
tvendov	0:6435b67ad23c	451	struct jpeg_entropy_encoder * entropy;
tvendov	0:6435b67ad23c	452	jpeg_scan_info * script_space; /* workspace for jpeg_simple_progression */
tvendov	0:6435b67ad23c	453	int script_space_size;
tvendov	0:6435b67ad23c	454	};
tvendov	0:6435b67ad23c	455
tvendov	0:6435b67ad23c	456
tvendov	0:6435b67ad23c	457	/* Master record for a decompression instance */
tvendov	0:6435b67ad23c	458
tvendov	0:6435b67ad23c	459	struct jpeg_decompress_struct {
tvendov	0:6435b67ad23c	460	jpeg_common_fields; /* Fields shared with jpeg_compress_struct */
tvendov	0:6435b67ad23c	461
tvendov	0:6435b67ad23c	462	/* Source of compressed data */
tvendov	0:6435b67ad23c	463	struct jpeg_source_mgr * src;
tvendov	0:6435b67ad23c	464
tvendov	0:6435b67ad23c	465	/* Basic description of image --- filled in by jpeg_read_header(). */
tvendov	0:6435b67ad23c	466	/* Application may inspect these values to decide how to process image. */
tvendov	0:6435b67ad23c	467
tvendov	0:6435b67ad23c	468	JDIMENSION image_width; /* nominal image width (from SOF marker) */
tvendov	0:6435b67ad23c	469	JDIMENSION image_height; /* nominal image height */
tvendov	0:6435b67ad23c	470	int num_components; /* # of color components in JPEG image */
tvendov	0:6435b67ad23c	471	J_COLOR_SPACE jpeg_color_space; /* colorspace of JPEG image */
tvendov	0:6435b67ad23c	472
tvendov	0:6435b67ad23c	473	/* Decompression processing parameters --- these fields must be set before
tvendov	0:6435b67ad23c	474	* calling jpeg_start_decompress(). Note that jpeg_read_header() initializes
tvendov	0:6435b67ad23c	475	* them to default values.
tvendov	0:6435b67ad23c	476	*/
tvendov	0:6435b67ad23c	477
tvendov	0:6435b67ad23c	478	J_COLOR_SPACE out_color_space; /* colorspace for output */
tvendov	0:6435b67ad23c	479
tvendov	0:6435b67ad23c	480	unsigned int scale_num, scale_denom; /* fraction by which to scale image */
tvendov	0:6435b67ad23c	481
tvendov	0:6435b67ad23c	482	double output_gamma; /* image gamma wanted in output */
tvendov	0:6435b67ad23c	483
tvendov	0:6435b67ad23c	484	boolean buffered_image; /* TRUE=multiple output passes */
tvendov	0:6435b67ad23c	485	boolean raw_data_out; /* TRUE=downsampled data wanted */
tvendov	0:6435b67ad23c	486
tvendov	0:6435b67ad23c	487	J_DCT_METHOD dct_method; /* IDCT algorithm selector */
tvendov	0:6435b67ad23c	488	boolean do_fancy_upsampling; /* TRUE=apply fancy upsampling */
tvendov	0:6435b67ad23c	489	boolean do_block_smoothing; /* TRUE=apply interblock smoothing */
tvendov	0:6435b67ad23c	490
tvendov	0:6435b67ad23c	491	boolean quantize_colors; /* TRUE=colormapped output wanted */
tvendov	0:6435b67ad23c	492	/* the following are ignored if not quantize_colors: */
tvendov	0:6435b67ad23c	493	J_DITHER_MODE dither_mode; /* type of color dithering to use */
tvendov	0:6435b67ad23c	494	boolean two_pass_quantize; /* TRUE=use two-pass color quantization */
tvendov	0:6435b67ad23c	495	int desired_number_of_colors; /* max # colors to use in created colormap */
tvendov	0:6435b67ad23c	496	/* these are significant only in buffered-image mode: */
tvendov	0:6435b67ad23c	497	boolean enable_1pass_quant; /* enable future use of 1-pass quantizer */
tvendov	0:6435b67ad23c	498	boolean enable_external_quant;/* enable future use of external colormap */
tvendov	0:6435b67ad23c	499	boolean enable_2pass_quant; /* enable future use of 2-pass quantizer */
tvendov	0:6435b67ad23c	500
tvendov	0:6435b67ad23c	501	/* Description of actual output image that will be returned to application.
tvendov	0:6435b67ad23c	502	* These fields are computed by jpeg_start_decompress().
tvendov	0:6435b67ad23c	503	* You can also use jpeg_calc_output_dimensions() to determine these values
tvendov	0:6435b67ad23c	504	* in advance of calling jpeg_start_decompress().
tvendov	0:6435b67ad23c	505	*/
tvendov	0:6435b67ad23c	506
tvendov	0:6435b67ad23c	507	JDIMENSION output_width; /* scaled image width */
tvendov	0:6435b67ad23c	508	JDIMENSION output_height; /* scaled image height */
tvendov	0:6435b67ad23c	509	int out_color_components; /* # of color components in out_color_space */
tvendov	0:6435b67ad23c	510	int output_components; /* # of color components returned */
tvendov	0:6435b67ad23c	511	/* output_components is 1 (a colormap index) when quantizing colors;
tvendov	0:6435b67ad23c	512	* otherwise it equals out_color_components.
tvendov	0:6435b67ad23c	513	*/
tvendov	0:6435b67ad23c	514	int rec_outbuf_height; /* min recommended height of scanline buffer */
tvendov	0:6435b67ad23c	515	/* If the buffer passed to jpeg_read_scanlines() is less than this many rows
tvendov	0:6435b67ad23c	516	* high, space and time will be wasted due to unnecessary data copying.
tvendov	0:6435b67ad23c	517	* Usually rec_outbuf_height will be 1 or 2, at most 4.
tvendov	0:6435b67ad23c	518	*/
tvendov	0:6435b67ad23c	519
tvendov	0:6435b67ad23c	520	/* When quantizing colors, the output colormap is described by these fields.
tvendov	0:6435b67ad23c	521	* The application can supply a colormap by setting colormap non-NULL before
tvendov	0:6435b67ad23c	522	* calling jpeg_start_decompress; otherwise a colormap is created during
tvendov	0:6435b67ad23c	523	* jpeg_start_decompress or jpeg_start_output.
tvendov	0:6435b67ad23c	524	* The map has out_color_components rows and actual_number_of_colors columns.
tvendov	0:6435b67ad23c	525	*/
tvendov	0:6435b67ad23c	526	int actual_number_of_colors; /* number of entries in use */
tvendov	0:6435b67ad23c	527	JSAMPARRAY colormap; /* The color map as a 2-D pixel array */
tvendov	0:6435b67ad23c	528
tvendov	0:6435b67ad23c	529	/* State variables: these variables indicate the progress of decompression.
tvendov	0:6435b67ad23c	530	* The application may examine these but must not modify them.
tvendov	0:6435b67ad23c	531	*/
tvendov	0:6435b67ad23c	532
tvendov	0:6435b67ad23c	533	/* Row index of next scanline to be read from jpeg_read_scanlines().
tvendov	0:6435b67ad23c	534	* Application may use this to control its processing loop, e.g.,
tvendov	0:6435b67ad23c	535	* "while (output_scanline < output_height)".
tvendov	0:6435b67ad23c	536	*/
tvendov	0:6435b67ad23c	537	JDIMENSION output_scanline; /* 0 .. output_height-1 */
tvendov	0:6435b67ad23c	538
tvendov	0:6435b67ad23c	539	/* Current input scan number and number of iMCU rows completed in scan.
tvendov	0:6435b67ad23c	540	* These indicate the progress of the decompressor input side.
tvendov	0:6435b67ad23c	541	*/
tvendov	0:6435b67ad23c	542	int input_scan_number; /* Number of SOS markers seen so far */
tvendov	0:6435b67ad23c	543	JDIMENSION input_iMCU_row; /* Number of iMCU rows completed */
tvendov	0:6435b67ad23c	544
tvendov	0:6435b67ad23c	545	/* The "output scan number" is the notional scan being displayed by the
tvendov	0:6435b67ad23c	546	* output side. The decompressor will not allow output scan/row number
tvendov	0:6435b67ad23c	547	* to get ahead of input scan/row, but it can fall arbitrarily far behind.
tvendov	0:6435b67ad23c	548	*/
tvendov	0:6435b67ad23c	549	int output_scan_number; /* Nominal scan number being displayed */
tvendov	0:6435b67ad23c	550	JDIMENSION output_iMCU_row; /* Number of iMCU rows read */
tvendov	0:6435b67ad23c	551
tvendov	0:6435b67ad23c	552	/* Current progression status. coef_bits[c][i] indicates the precision
tvendov	0:6435b67ad23c	553	* with which component c's DCT coefficient i (in zigzag order) is known.
tvendov	0:6435b67ad23c	554	* It is -1 when no data has yet been received, otherwise it is the point
tvendov	0:6435b67ad23c	555	* transform (shift) value for the most recent scan of the coefficient
tvendov	0:6435b67ad23c	556	* (thus, 0 at completion of the progression).
tvendov	0:6435b67ad23c	557	* This pointer is NULL when reading a non-progressive file.
tvendov	0:6435b67ad23c	558	*/
tvendov	0:6435b67ad23c	559	int (coef_bits)[DCTSIZE2]; / -1 or current Al value for each coef */
tvendov	0:6435b67ad23c	560
tvendov	0:6435b67ad23c	561	/* Internal JPEG parameters --- the application usually need not look at
tvendov	0:6435b67ad23c	562	* these fields. Note that the decompressor output side may not use
tvendov	0:6435b67ad23c	563	* any parameters that can change between scans.
tvendov	0:6435b67ad23c	564	*/
tvendov	0:6435b67ad23c	565
tvendov	0:6435b67ad23c	566	/* Quantization and Huffman tables are carried forward across input
tvendov	0:6435b67ad23c	567	* datastreams when processing abbreviated JPEG datastreams.
tvendov	0:6435b67ad23c	568	*/
tvendov	0:6435b67ad23c	569
tvendov	0:6435b67ad23c	570	JQUANT_TBL * quant_tbl_ptrs[NUM_QUANT_TBLS];
tvendov	0:6435b67ad23c	571	/* ptrs to coefficient quantization tables, or NULL if not defined */
tvendov	0:6435b67ad23c	572
tvendov	0:6435b67ad23c	573	JHUFF_TBL * dc_huff_tbl_ptrs[NUM_HUFF_TBLS];
tvendov	0:6435b67ad23c	574	JHUFF_TBL * ac_huff_tbl_ptrs[NUM_HUFF_TBLS];
tvendov	0:6435b67ad23c	575	/* ptrs to Huffman coding tables, or NULL if not defined */
tvendov	0:6435b67ad23c	576
tvendov	0:6435b67ad23c	577	/* These parameters are never carried across datastreams, since they
tvendov	0:6435b67ad23c	578	* are given in SOF/SOS markers or defined to be reset by SOI.
tvendov	0:6435b67ad23c	579	*/
tvendov	0:6435b67ad23c	580
tvendov	0:6435b67ad23c	581	int data_precision; /* bits of precision in image data */
tvendov	0:6435b67ad23c	582
tvendov	0:6435b67ad23c	583	jpeg_component_info * comp_info;
tvendov	0:6435b67ad23c	584	/* comp_info[i] describes component that appears i'th in SOF */
tvendov	0:6435b67ad23c	585
tvendov	0:6435b67ad23c	586	boolean is_baseline; /* TRUE if Baseline SOF0 encountered */
tvendov	0:6435b67ad23c	587	boolean progressive_mode; /* TRUE if SOFn specifies progressive mode */
tvendov	0:6435b67ad23c	588	boolean arith_code; /* TRUE=arithmetic coding, FALSE=Huffman */
tvendov	0:6435b67ad23c	589
tvendov	0:6435b67ad23c	590	UINT8 arith_dc_L[NUM_ARITH_TBLS]; /* L values for DC arith-coding tables */
tvendov	0:6435b67ad23c	591	UINT8 arith_dc_U[NUM_ARITH_TBLS]; /* U values for DC arith-coding tables */
tvendov	0:6435b67ad23c	592	UINT8 arith_ac_K[NUM_ARITH_TBLS]; /* Kx values for AC arith-coding tables */
tvendov	0:6435b67ad23c	593
tvendov	0:6435b67ad23c	594	unsigned int restart_interval; /* MCUs per restart interval, or 0 for no restart */
tvendov	0:6435b67ad23c	595
tvendov	0:6435b67ad23c	596	/* These fields record data obtained from optional markers recognized by
tvendov	0:6435b67ad23c	597	* the JPEG library.
tvendov	0:6435b67ad23c	598	*/
tvendov	0:6435b67ad23c	599	boolean saw_JFIF_marker; /* TRUE iff a JFIF APP0 marker was found */
tvendov	0:6435b67ad23c	600	/* Data copied from JFIF marker; only valid if saw_JFIF_marker is TRUE: */
tvendov	0:6435b67ad23c	601	UINT8 JFIF_major_version; /* JFIF version number */
tvendov	0:6435b67ad23c	602	UINT8 JFIF_minor_version;
tvendov	0:6435b67ad23c	603	UINT8 density_unit; /* JFIF code for pixel size units */
tvendov	0:6435b67ad23c	604	UINT16 X_density; /* Horizontal pixel density */
tvendov	0:6435b67ad23c	605	UINT16 Y_density; /* Vertical pixel density */
tvendov	0:6435b67ad23c	606	boolean saw_Adobe_marker; /* TRUE iff an Adobe APP14 marker was found */
tvendov	0:6435b67ad23c	607	UINT8 Adobe_transform; /* Color transform code from Adobe marker */
tvendov	0:6435b67ad23c	608
tvendov	0:6435b67ad23c	609	J_COLOR_TRANSFORM color_transform;
tvendov	0:6435b67ad23c	610	/* Color transform identifier derived from LSE marker, otherwise zero */
tvendov	0:6435b67ad23c	611
tvendov	0:6435b67ad23c	612	boolean CCIR601_sampling; /* TRUE=first samples are cosited */
tvendov	0:6435b67ad23c	613
tvendov	0:6435b67ad23c	614	/* Aside from the specific data retained from APPn markers known to the
tvendov	0:6435b67ad23c	615	* library, the uninterpreted contents of any or all APPn and COM markers
tvendov	0:6435b67ad23c	616	* can be saved in a list for examination by the application.
tvendov	0:6435b67ad23c	617	*/
tvendov	0:6435b67ad23c	618	jpeg_saved_marker_ptr marker_list; /* Head of list of saved markers */
tvendov	0:6435b67ad23c	619
tvendov	0:6435b67ad23c	620	/* Remaining fields are known throughout decompressor, but generally
tvendov	0:6435b67ad23c	621	* should not be touched by a surrounding application.
tvendov	0:6435b67ad23c	622	*/
tvendov	0:6435b67ad23c	623
tvendov	0:6435b67ad23c	624	/*
tvendov	0:6435b67ad23c	625	* These fields are computed during decompression startup
tvendov	0:6435b67ad23c	626	*/
tvendov	0:6435b67ad23c	627	int max_h_samp_factor; /* largest h_samp_factor */
tvendov	0:6435b67ad23c	628	int max_v_samp_factor; /* largest v_samp_factor */
tvendov	0:6435b67ad23c	629
tvendov	0:6435b67ad23c	630	int min_DCT_h_scaled_size; /* smallest DCT_h_scaled_size of any component */
tvendov	0:6435b67ad23c	631	int min_DCT_v_scaled_size; /* smallest DCT_v_scaled_size of any component */
tvendov	0:6435b67ad23c	632
tvendov	0:6435b67ad23c	633	JDIMENSION total_iMCU_rows; /* # of iMCU rows in image */
tvendov	0:6435b67ad23c	634	/* The coefficient controller's input and output progress is measured in
tvendov	0:6435b67ad23c	635	* units of "iMCU" (interleaved MCU) rows. These are the same as MCU rows
tvendov	0:6435b67ad23c	636	* in fully interleaved JPEG scans, but are used whether the scan is
tvendov	0:6435b67ad23c	637	* interleaved or not. We define an iMCU row as v_samp_factor DCT block
tvendov	0:6435b67ad23c	638	* rows of each component. Therefore, the IDCT output contains
tvendov	0:6435b67ad23c	639	* v_samp_factor*DCT_v_scaled_size sample rows of a component per iMCU row.
tvendov	0:6435b67ad23c	640	*/
tvendov	0:6435b67ad23c	641
tvendov	0:6435b67ad23c	642	JSAMPLE * sample_range_limit; /* table for fast range-limiting */
tvendov	0:6435b67ad23c	643
tvendov	0:6435b67ad23c	644	/*
tvendov	0:6435b67ad23c	645	* These fields are valid during any one scan.
tvendov	0:6435b67ad23c	646	* They describe the components and MCUs actually appearing in the scan.
tvendov	0:6435b67ad23c	647	* Note that the decompressor output side must not use these fields.
tvendov	0:6435b67ad23c	648	*/
tvendov	0:6435b67ad23c	649	int comps_in_scan; /* # of JPEG components in this scan */
tvendov	0:6435b67ad23c	650	jpeg_component_info * cur_comp_info[MAX_COMPS_IN_SCAN];
tvendov	0:6435b67ad23c	651	/* cur_comp_info[i] describes component that appears i'th in SOS /
tvendov	0:6435b67ad23c	652
tvendov	0:6435b67ad23c	653	JDIMENSION MCUs_per_row; /* # of MCUs across the image */
tvendov	0:6435b67ad23c	654	JDIMENSION MCU_rows_in_scan; /* # of MCU rows in the image */
tvendov	0:6435b67ad23c	655
tvendov	0:6435b67ad23c	656	int blocks_in_MCU; /* # of DCT blocks per MCU */
tvendov	0:6435b67ad23c	657	int MCU_membership[D_MAX_BLOCKS_IN_MCU];
tvendov	0:6435b67ad23c	658	/* MCU_membership[i] is index in cur_comp_info of component owning */
tvendov	0:6435b67ad23c	659	/* i'th block in an MCU */
tvendov	0:6435b67ad23c	660
tvendov	0:6435b67ad23c	661	int Ss, Se, Ah, Al; /* progressive JPEG parameters for scan */
tvendov	0:6435b67ad23c	662
tvendov	0:6435b67ad23c	663	/* These fields are derived from Se of first SOS marker.
tvendov	0:6435b67ad23c	664	*/
tvendov	0:6435b67ad23c	665	int block_size; /* the basic DCT block size: 1..16 */
tvendov	0:6435b67ad23c	666	const int * natural_order; /* natural-order position array for entropy decode */
tvendov	0:6435b67ad23c	667	int lim_Se; /* min( Se, DCTSIZE2-1 ) for entropy decode */
tvendov	0:6435b67ad23c	668
tvendov	0:6435b67ad23c	669	/* This field is shared between entropy decoder and marker parser.
tvendov	0:6435b67ad23c	670	* It is either zero or the code of a JPEG marker that has been
tvendov	0:6435b67ad23c	671	* read from the data source, but has not yet been processed.
tvendov	0:6435b67ad23c	672	*/
tvendov	0:6435b67ad23c	673	int unread_marker;
tvendov	0:6435b67ad23c	674
tvendov	0:6435b67ad23c	675	/*
tvendov	0:6435b67ad23c	676	* Links to decompression subobjects (methods, private variables of modules)
tvendov	0:6435b67ad23c	677	*/
tvendov	0:6435b67ad23c	678	struct jpeg_decomp_master * master;
tvendov	0:6435b67ad23c	679	struct jpeg_d_main_controller * main;
tvendov	0:6435b67ad23c	680	struct jpeg_d_coef_controller * coef;
tvendov	0:6435b67ad23c	681	struct jpeg_d_post_controller * post;
tvendov	0:6435b67ad23c	682	struct jpeg_input_controller * inputctl;
tvendov	0:6435b67ad23c	683	struct jpeg_marker_reader * marker;
tvendov	0:6435b67ad23c	684	struct jpeg_entropy_decoder * entropy;
tvendov	0:6435b67ad23c	685	struct jpeg_inverse_dct * idct;
tvendov	0:6435b67ad23c	686	struct jpeg_upsampler * upsample;
tvendov	0:6435b67ad23c	687	struct jpeg_color_deconverter * cconvert;
tvendov	0:6435b67ad23c	688	struct jpeg_color_quantizer * cquantize;
tvendov	0:6435b67ad23c	689	};
tvendov	0:6435b67ad23c	690
tvendov	0:6435b67ad23c	691
tvendov	0:6435b67ad23c	692	/* "Object" declarations for JPEG modules that may be supplied or called
tvendov	0:6435b67ad23c	693	* directly by the surrounding application.
tvendov	0:6435b67ad23c	694	* As with all objects in the JPEG library, these structs only define the
tvendov	0:6435b67ad23c	695	* publicly visible methods and state variables of a module. Additional
tvendov	0:6435b67ad23c	696	* private fields may exist after the public ones.
tvendov	0:6435b67ad23c	697	*/
tvendov	0:6435b67ad23c	698
tvendov	0:6435b67ad23c	699
tvendov	0:6435b67ad23c	700	/* Error handler object */
tvendov	0:6435b67ad23c	701
tvendov	0:6435b67ad23c	702	struct jpeg_error_mgr {
tvendov	0:6435b67ad23c	703	/* Error exit handler: does not return to caller */
tvendov	0:6435b67ad23c	704	JMETHOD(noreturn_t, error_exit, (j_common_ptr cinfo));
tvendov	0:6435b67ad23c	705	/* Conditionally emit a trace or warning message */
tvendov	0:6435b67ad23c	706	JMETHOD(void, emit_message, (j_common_ptr cinfo, int msg_level));
tvendov	0:6435b67ad23c	707	/* Routine that actually outputs a trace or error message */
tvendov	0:6435b67ad23c	708	JMETHOD(void, output_message, (j_common_ptr cinfo));
tvendov	0:6435b67ad23c	709	/* Format a message string for the most recent JPEG error or message */
tvendov	0:6435b67ad23c	710	JMETHOD(void, format_message, (j_common_ptr cinfo, char * buffer));
tvendov	0:6435b67ad23c	711	#define JMSG_LENGTH_MAX 200 /* recommended size of format_message buffer */
tvendov	0:6435b67ad23c	712	/* Reset error state variables at start of a new image */
tvendov	0:6435b67ad23c	713	JMETHOD(void, reset_error_mgr, (j_common_ptr cinfo));
tvendov	0:6435b67ad23c	714
tvendov	0:6435b67ad23c	715	/* The message ID code and any parameters are saved here.
tvendov	0:6435b67ad23c	716	* A message can have one string parameter or up to 8 int parameters.
tvendov	0:6435b67ad23c	717	*/
tvendov	0:6435b67ad23c	718	int msg_code;
tvendov	0:6435b67ad23c	719	#define JMSG_STR_PARM_MAX 80
tvendov	0:6435b67ad23c	720	union {
tvendov	0:6435b67ad23c	721	int i[8];
tvendov	0:6435b67ad23c	722	char s[JMSG_STR_PARM_MAX];
tvendov	0:6435b67ad23c	723	} msg_parm;
tvendov	0:6435b67ad23c	724
tvendov	0:6435b67ad23c	725	/* Standard state variables for error facility */
tvendov	0:6435b67ad23c	726
tvendov	0:6435b67ad23c	727	int trace_level; /* max msg_level that will be displayed */
tvendov	0:6435b67ad23c	728
tvendov	0:6435b67ad23c	729	/* For recoverable corrupt-data errors, we emit a warning message,
tvendov	0:6435b67ad23c	730	* but keep going unless emit_message chooses to abort. emit_message
tvendov	0:6435b67ad23c	731	* should count warnings in num_warnings. The surrounding application
tvendov	0:6435b67ad23c	732	* can check for bad data by seeing if num_warnings is nonzero at the
tvendov	0:6435b67ad23c	733	* end of processing.
tvendov	0:6435b67ad23c	734	*/
tvendov	0:6435b67ad23c	735	long num_warnings; /* number of corrupt-data warnings */
tvendov	0:6435b67ad23c	736
tvendov	0:6435b67ad23c	737	/* These fields point to the table(s) of error message strings.
tvendov	0:6435b67ad23c	738	* An application can change the table pointer to switch to a different
tvendov	0:6435b67ad23c	739	* message list (typically, to change the language in which errors are
tvendov	0:6435b67ad23c	740	* reported). Some applications may wish to add additional error codes
tvendov	0:6435b67ad23c	741	* that will be handled by the JPEG library error mechanism; the second
tvendov	0:6435b67ad23c	742	* table pointer is used for this purpose.
tvendov	0:6435b67ad23c	743	*
tvendov	0:6435b67ad23c	744	* First table includes all errors generated by JPEG library itself.
tvendov	0:6435b67ad23c	745	* Error code 0 is reserved for a "no such error string" message.
tvendov	0:6435b67ad23c	746	*/
tvendov	0:6435b67ad23c	747	const char * const * jpeg_message_table; /* Library errors */
tvendov	0:6435b67ad23c	748	int last_jpeg_message; /* Table contains strings 0..last_jpeg_message */
tvendov	0:6435b67ad23c	749	/* Second table can be added by application (see cjpeg/djpeg for example).
tvendov	0:6435b67ad23c	750	* It contains strings numbered first_addon_message..last_addon_message.
tvendov	0:6435b67ad23c	751	*/
tvendov	0:6435b67ad23c	752	const char * const * addon_message_table; /* Non-library errors */
tvendov	0:6435b67ad23c	753	int first_addon_message; /* code for first string in addon table */
tvendov	0:6435b67ad23c	754	int last_addon_message; /* code for last string in addon table */
tvendov	0:6435b67ad23c	755	};
tvendov	0:6435b67ad23c	756
tvendov	0:6435b67ad23c	757
tvendov	0:6435b67ad23c	758	/* Progress monitor object */
tvendov	0:6435b67ad23c	759
tvendov	0:6435b67ad23c	760	struct jpeg_progress_mgr {
tvendov	0:6435b67ad23c	761	JMETHOD(void, progress_monitor, (j_common_ptr cinfo));
tvendov	0:6435b67ad23c	762
tvendov	0:6435b67ad23c	763	long pass_counter; /* work units completed in this pass */
tvendov	0:6435b67ad23c	764	long pass_limit; /* total number of work units in this pass */
tvendov	0:6435b67ad23c	765	int completed_passes; /* passes completed so far */
tvendov	0:6435b67ad23c	766	int total_passes; /* total number of passes expected */
tvendov	0:6435b67ad23c	767	};
tvendov	0:6435b67ad23c	768
tvendov	0:6435b67ad23c	769
tvendov	0:6435b67ad23c	770	/* Data destination object for compression */
tvendov	0:6435b67ad23c	771
tvendov	0:6435b67ad23c	772	struct jpeg_destination_mgr {
tvendov	0:6435b67ad23c	773	JOCTET * next_output_byte; /* => next byte to write in buffer */
tvendov	0:6435b67ad23c	774	size_t free_in_buffer; /* # of byte spaces remaining in buffer */
tvendov	0:6435b67ad23c	775
tvendov	0:6435b67ad23c	776	JMETHOD(void, init_destination, (j_compress_ptr cinfo));
tvendov	0:6435b67ad23c	777	JMETHOD(boolean, empty_output_buffer, (j_compress_ptr cinfo));
tvendov	0:6435b67ad23c	778	JMETHOD(void, term_destination, (j_compress_ptr cinfo));
tvendov	0:6435b67ad23c	779	};
tvendov	0:6435b67ad23c	780
tvendov	0:6435b67ad23c	781
tvendov	0:6435b67ad23c	782	/* Data source object for decompression */
tvendov	0:6435b67ad23c	783
tvendov	0:6435b67ad23c	784	struct jpeg_source_mgr {
tvendov	0:6435b67ad23c	785	const JOCTET * next_input_byte; /* => next byte to read from buffer */
tvendov	0:6435b67ad23c	786	size_t bytes_in_buffer; /* # of bytes remaining in buffer */
tvendov	0:6435b67ad23c	787
tvendov	0:6435b67ad23c	788	JMETHOD(void, init_source, (j_decompress_ptr cinfo));
tvendov	0:6435b67ad23c	789	JMETHOD(boolean, fill_input_buffer, (j_decompress_ptr cinfo));
tvendov	0:6435b67ad23c	790	JMETHOD(void, skip_input_data, (j_decompress_ptr cinfo, long num_bytes));
tvendov	0:6435b67ad23c	791	JMETHOD(boolean, resync_to_restart, (j_decompress_ptr cinfo, int desired));
tvendov	0:6435b67ad23c	792	JMETHOD(void, term_source, (j_decompress_ptr cinfo));
tvendov	0:6435b67ad23c	793	};
tvendov	0:6435b67ad23c	794
tvendov	0:6435b67ad23c	795
tvendov	0:6435b67ad23c	796	/* Memory manager object.
tvendov	0:6435b67ad23c	797	* Allocates "small" objects (a few K total), "large" objects (tens of K),
tvendov	0:6435b67ad23c	798	* and "really big" objects (virtual arrays with backing store if needed).
tvendov	0:6435b67ad23c	799	* The memory manager does not allow individual objects to be freed; rather,
tvendov	0:6435b67ad23c	800	* each created object is assigned to a pool, and whole pools can be freed
tvendov	0:6435b67ad23c	801	* at once. This is faster and more convenient than remembering exactly what
tvendov	0:6435b67ad23c	802	* to free, especially where malloc()/free() are not too speedy.
tvendov	0:6435b67ad23c	803	* NB: alloc routines never return NULL. They exit to error_exit if not
tvendov	0:6435b67ad23c	804	* successful.
tvendov	0:6435b67ad23c	805	*/
tvendov	0:6435b67ad23c	806
tvendov	0:6435b67ad23c	807	#define JPOOL_PERMANENT 0 /* lasts until master record is destroyed */
tvendov	0:6435b67ad23c	808	#define JPOOL_IMAGE 1 /* lasts until done with image/datastream */
tvendov	0:6435b67ad23c	809	#define JPOOL_NUMPOOLS 2
tvendov	0:6435b67ad23c	810
tvendov	0:6435b67ad23c	811	typedef struct jvirt_sarray_control * jvirt_sarray_ptr;
tvendov	0:6435b67ad23c	812	typedef struct jvirt_barray_control * jvirt_barray_ptr;
tvendov	0:6435b67ad23c	813
tvendov	0:6435b67ad23c	814
tvendov	0:6435b67ad23c	815	struct jpeg_memory_mgr {
tvendov	0:6435b67ad23c	816	/* Method pointers */
tvendov	0:6435b67ad23c	817	JMETHOD(void *, alloc_small, (j_common_ptr cinfo, int pool_id,
tvendov	0:6435b67ad23c	818	size_t sizeofobject));
tvendov	0:6435b67ad23c	819	JMETHOD(void FAR *, alloc_large, (j_common_ptr cinfo, int pool_id,
tvendov	0:6435b67ad23c	820	size_t sizeofobject));
tvendov	0:6435b67ad23c	821	JMETHOD(JSAMPARRAY, alloc_sarray, (j_common_ptr cinfo, int pool_id,
tvendov	0:6435b67ad23c	822	JDIMENSION samplesperrow,
tvendov	0:6435b67ad23c	823	JDIMENSION numrows));
tvendov	0:6435b67ad23c	824	JMETHOD(JBLOCKARRAY, alloc_barray, (j_common_ptr cinfo, int pool_id,
tvendov	0:6435b67ad23c	825	JDIMENSION blocksperrow,
tvendov	0:6435b67ad23c	826	JDIMENSION numrows));
tvendov	0:6435b67ad23c	827	JMETHOD(jvirt_sarray_ptr, request_virt_sarray, (j_common_ptr cinfo,
tvendov	0:6435b67ad23c	828	int pool_id,
tvendov	0:6435b67ad23c	829	boolean pre_zero,
tvendov	0:6435b67ad23c	830	JDIMENSION samplesperrow,
tvendov	0:6435b67ad23c	831	JDIMENSION numrows,
tvendov	0:6435b67ad23c	832	JDIMENSION maxaccess));
tvendov	0:6435b67ad23c	833	JMETHOD(jvirt_barray_ptr, request_virt_barray, (j_common_ptr cinfo,
tvendov	0:6435b67ad23c	834	int pool_id,
tvendov	0:6435b67ad23c	835	boolean pre_zero,
tvendov	0:6435b67ad23c	836	JDIMENSION blocksperrow,
tvendov	0:6435b67ad23c	837	JDIMENSION numrows,
tvendov	0:6435b67ad23c	838	JDIMENSION maxaccess));
tvendov	0:6435b67ad23c	839	JMETHOD(void, realize_virt_arrays, (j_common_ptr cinfo));
tvendov	0:6435b67ad23c	840	JMETHOD(JSAMPARRAY, access_virt_sarray, (j_common_ptr cinfo,
tvendov	0:6435b67ad23c	841	jvirt_sarray_ptr ptr,
tvendov	0:6435b67ad23c	842	JDIMENSION start_row,
tvendov	0:6435b67ad23c	843	JDIMENSION num_rows,
tvendov	0:6435b67ad23c	844	boolean writable));
tvendov	0:6435b67ad23c	845	JMETHOD(JBLOCKARRAY, access_virt_barray, (j_common_ptr cinfo,
tvendov	0:6435b67ad23c	846	jvirt_barray_ptr ptr,
tvendov	0:6435b67ad23c	847	JDIMENSION start_row,
tvendov	0:6435b67ad23c	848	JDIMENSION num_rows,
tvendov	0:6435b67ad23c	849	boolean writable));
tvendov	0:6435b67ad23c	850	JMETHOD(void, free_pool, (j_common_ptr cinfo, int pool_id));
tvendov	0:6435b67ad23c	851	JMETHOD(void, self_destruct, (j_common_ptr cinfo));
tvendov	0:6435b67ad23c	852
tvendov	0:6435b67ad23c	853	/* Limit on memory allocation for this JPEG object. (Note that this is
tvendov	0:6435b67ad23c	854	* merely advisory, not a guaranteed maximum; it only affects the space
tvendov	0:6435b67ad23c	855	* used for virtual-array buffers.) May be changed by outer application
tvendov	0:6435b67ad23c	856	* after creating the JPEG object.
tvendov	0:6435b67ad23c	857	*/
tvendov	0:6435b67ad23c	858	long max_memory_to_use;
tvendov	0:6435b67ad23c	859
tvendov	0:6435b67ad23c	860	/* Maximum allocation request accepted by alloc_large. */
tvendov	0:6435b67ad23c	861	long max_alloc_chunk;
tvendov	0:6435b67ad23c	862	};
tvendov	0:6435b67ad23c	863
tvendov	0:6435b67ad23c	864
tvendov	0:6435b67ad23c	865	/* Routine signature for application-supplied marker processing methods.
tvendov	0:6435b67ad23c	866	* Need not pass marker code since it is stored in cinfo->unread_marker.
tvendov	0:6435b67ad23c	867	*/
tvendov	0:6435b67ad23c	868	typedef JMETHOD(boolean, jpeg_marker_parser_method, (j_decompress_ptr cinfo));
tvendov	0:6435b67ad23c	869
tvendov	0:6435b67ad23c	870
tvendov	0:6435b67ad23c	871	/* Declarations for routines called by application.
tvendov	0:6435b67ad23c	872	* The JPP macro hides prototype parameters from compilers that can't cope.
tvendov	0:6435b67ad23c	873	* Note JPP requires double parentheses.
tvendov	0:6435b67ad23c	874	*/
tvendov	0:6435b67ad23c	875
tvendov	0:6435b67ad23c	876	#ifdef HAVE_PROTOTYPES
tvendov	0:6435b67ad23c	877	#define JPP(arglist) arglist
tvendov	0:6435b67ad23c	878	#else
tvendov	0:6435b67ad23c	879	#define JPP(arglist) ()
tvendov	0:6435b67ad23c	880	#endif
tvendov	0:6435b67ad23c	881
tvendov	0:6435b67ad23c	882
tvendov	0:6435b67ad23c	883	/* Short forms of external names for systems with brain-damaged linkers.
tvendov	0:6435b67ad23c	884	* We shorten external names to be unique in the first six letters, which
tvendov	0:6435b67ad23c	885	* is good enough for all known systems.
tvendov	0:6435b67ad23c	886	* (If your compiler itself needs names to be unique in less than 15
tvendov	0:6435b67ad23c	887	* characters, you are out of luck. Get a better compiler.)
tvendov	0:6435b67ad23c	888	*/
tvendov	0:6435b67ad23c	889
tvendov	0:6435b67ad23c	890	#ifdef NEED_SHORT_EXTERNAL_NAMES
tvendov	0:6435b67ad23c	891	#define jpeg_std_error jStdError
tvendov	0:6435b67ad23c	892	#define jpeg_CreateCompress jCreaCompress
tvendov	0:6435b67ad23c	893	#define jpeg_CreateDecompress jCreaDecompress
tvendov	0:6435b67ad23c	894	#define jpeg_destroy_compress jDestCompress
tvendov	0:6435b67ad23c	895	#define jpeg_destroy_decompress jDestDecompress
tvendov	0:6435b67ad23c	896	#define jpeg_stdio_dest jStdDest
tvendov	0:6435b67ad23c	897	#define jpeg_stdio_src jStdSrc
tvendov	0:6435b67ad23c	898	#define jpeg_mem_dest jMemDest
tvendov	0:6435b67ad23c	899	#define jpeg_mem_src jMemSrc
tvendov	0:6435b67ad23c	900	#define jpeg_set_defaults jSetDefaults
tvendov	0:6435b67ad23c	901	#define jpeg_set_colorspace jSetColorspace
tvendov	0:6435b67ad23c	902	#define jpeg_default_colorspace jDefColorspace
tvendov	0:6435b67ad23c	903	#define jpeg_set_quality jSetQuality
tvendov	0:6435b67ad23c	904	#define jpeg_set_linear_quality jSetLQuality
tvendov	0:6435b67ad23c	905	#define jpeg_default_qtables jDefQTables
tvendov	0:6435b67ad23c	906	#define jpeg_add_quant_table jAddQuantTable
tvendov	0:6435b67ad23c	907	#define jpeg_quality_scaling jQualityScaling
tvendov	0:6435b67ad23c	908	#define jpeg_simple_progression jSimProgress
tvendov	0:6435b67ad23c	909	#define jpeg_suppress_tables jSuppressTables
tvendov	0:6435b67ad23c	910	#define jpeg_alloc_quant_table jAlcQTable
tvendov	0:6435b67ad23c	911	#define jpeg_alloc_huff_table jAlcHTable
tvendov	0:6435b67ad23c	912	#define jpeg_start_compress jStrtCompress
tvendov	0:6435b67ad23c	913	#define jpeg_write_scanlines jWrtScanlines
tvendov	0:6435b67ad23c	914	#define jpeg_finish_compress jFinCompress
tvendov	0:6435b67ad23c	915	#define jpeg_calc_jpeg_dimensions jCjpegDimensions
tvendov	0:6435b67ad23c	916	#define jpeg_write_raw_data jWrtRawData
tvendov	0:6435b67ad23c	917	#define jpeg_write_marker jWrtMarker
tvendov	0:6435b67ad23c	918	#define jpeg_write_m_header jWrtMHeader
tvendov	0:6435b67ad23c	919	#define jpeg_write_m_byte jWrtMByte
tvendov	0:6435b67ad23c	920	#define jpeg_write_tables jWrtTables
tvendov	0:6435b67ad23c	921	#define jpeg_read_header jReadHeader
tvendov	0:6435b67ad23c	922	#define jpeg_start_decompress jStrtDecompress
tvendov	0:6435b67ad23c	923	#define jpeg_read_scanlines jReadScanlines
tvendov	0:6435b67ad23c	924	#define jpeg_finish_decompress jFinDecompress
tvendov	0:6435b67ad23c	925	#define jpeg_read_raw_data jReadRawData
tvendov	0:6435b67ad23c	926	#define jpeg_has_multiple_scans jHasMultScn
tvendov	0:6435b67ad23c	927	#define jpeg_start_output jStrtOutput
tvendov	0:6435b67ad23c	928	#define jpeg_finish_output jFinOutput
tvendov	0:6435b67ad23c	929	#define jpeg_input_complete jInComplete
tvendov	0:6435b67ad23c	930	#define jpeg_new_colormap jNewCMap
tvendov	0:6435b67ad23c	931	#define jpeg_consume_input jConsumeInput
tvendov	0:6435b67ad23c	932	#define jpeg_core_output_dimensions jCoreDimensions
tvendov	0:6435b67ad23c	933	#define jpeg_calc_output_dimensions jCalcDimensions
tvendov	0:6435b67ad23c	934	#define jpeg_save_markers jSaveMarkers
tvendov	0:6435b67ad23c	935	#define jpeg_set_marker_processor jSetMarker
tvendov	0:6435b67ad23c	936	#define jpeg_read_coefficients jReadCoefs
tvendov	0:6435b67ad23c	937	#define jpeg_write_coefficients jWrtCoefs
tvendov	0:6435b67ad23c	938	#define jpeg_copy_critical_parameters jCopyCrit
tvendov	0:6435b67ad23c	939	#define jpeg_abort_compress jAbrtCompress
tvendov	0:6435b67ad23c	940	#define jpeg_abort_decompress jAbrtDecompress
tvendov	0:6435b67ad23c	941	#define jpeg_abort jAbort
tvendov	0:6435b67ad23c	942	#define jpeg_destroy jDestroy
tvendov	0:6435b67ad23c	943	#define jpeg_resync_to_restart jResyncRestart
tvendov	0:6435b67ad23c	944	#endif /* NEED_SHORT_EXTERNAL_NAMES */
tvendov	0:6435b67ad23c	945
tvendov	0:6435b67ad23c	946
tvendov	0:6435b67ad23c	947	/* Default error-management setup */
tvendov	0:6435b67ad23c	948	EXTERN(struct jpeg_error_mgr *) jpeg_std_error
tvendov	0:6435b67ad23c	949	JPP((struct jpeg_error_mgr * err));
tvendov	0:6435b67ad23c	950
tvendov	0:6435b67ad23c	951	/* Initialization of JPEG compression objects.
tvendov	0:6435b67ad23c	952	* jpeg_create_compress() and jpeg_create_decompress() are the exported
tvendov	0:6435b67ad23c	953	* names that applications should call. These expand to calls on
tvendov	0:6435b67ad23c	954	* jpeg_CreateCompress and jpeg_CreateDecompress with additional information
tvendov	0:6435b67ad23c	955	* passed for version mismatch checking.
tvendov	0:6435b67ad23c	956	* NB: you must set up the error-manager BEFORE calling jpeg_create_xxx.
tvendov	0:6435b67ad23c	957	*/
tvendov	0:6435b67ad23c	958	#define jpeg_create_compress(cinfo) \
tvendov	0:6435b67ad23c	959	jpeg_CreateCompress((cinfo), JPEG_LIB_VERSION, \
tvendov	0:6435b67ad23c	960	(size_t) sizeof(struct jpeg_compress_struct))
tvendov	0:6435b67ad23c	961	#define jpeg_create_decompress(cinfo) \
tvendov	0:6435b67ad23c	962	jpeg_CreateDecompress((cinfo), JPEG_LIB_VERSION, \
tvendov	0:6435b67ad23c	963	(size_t) sizeof(struct jpeg_decompress_struct))
tvendov	0:6435b67ad23c	964	EXTERN(void) jpeg_CreateCompress JPP((j_compress_ptr cinfo,
tvendov	0:6435b67ad23c	965	int version, size_t structsize));
tvendov	0:6435b67ad23c	966	EXTERN(void) jpeg_CreateDecompress JPP((j_decompress_ptr cinfo,
tvendov	0:6435b67ad23c	967	int version, size_t structsize));
tvendov	0:6435b67ad23c	968	/* Destruction of JPEG compression objects */
tvendov	0:6435b67ad23c	969	EXTERN(void) jpeg_destroy_compress JPP((j_compress_ptr cinfo));
tvendov	0:6435b67ad23c	970	EXTERN(void) jpeg_destroy_decompress JPP((j_decompress_ptr cinfo));
tvendov	0:6435b67ad23c	971
tvendov	0:6435b67ad23c	972	/* Standard data source and destination managers: stdio streams. */
tvendov	0:6435b67ad23c	973	/* Caller is responsible for opening the file before and closing after. */
tvendov	0:6435b67ad23c	974	#ifdef HAVE_FILE_P_H
tvendov	0:6435b67ad23c	975	EXTERN(void) jpeg_stdio_dest JPP((j_compress_ptr cinfo, FILE * outfile));
tvendov	0:6435b67ad23c	976	EXTERN(void) jpeg_stdio_src JPP((j_decompress_ptr cinfo, FILE * infile));
tvendov	0:6435b67ad23c	977	#endif
tvendov	0:6435b67ad23c	978
tvendov	0:6435b67ad23c	979	/* Data source and destination managers: memory buffers. */
tvendov	0:6435b67ad23c	980	EXTERN(void) jpeg_mem_dest JPP((j_compress_ptr cinfo,
tvendov	0:6435b67ad23c	981	unsigned char ** outbuffer,
tvendov	0:6435b67ad23c	982	unsigned long * outsize));
tvendov	0:6435b67ad23c	983	EXTERN(void) jpeg_mem_src JPP((j_decompress_ptr cinfo,
tvendov	0:6435b67ad23c	984	unsigned char * inbuffer,
tvendov	0:6435b67ad23c	985	unsigned long insize));
tvendov	0:6435b67ad23c	986
tvendov	0:6435b67ad23c	987	/* Default parameter setup for compression */
tvendov	0:6435b67ad23c	988	EXTERN(void) jpeg_set_defaults JPP((j_compress_ptr cinfo));
tvendov	0:6435b67ad23c	989	/* Compression parameter setup aids */
tvendov	0:6435b67ad23c	990	EXTERN(void) jpeg_set_colorspace JPP((j_compress_ptr cinfo,
tvendov	0:6435b67ad23c	991	J_COLOR_SPACE colorspace));
tvendov	0:6435b67ad23c	992	EXTERN(void) jpeg_default_colorspace JPP((j_compress_ptr cinfo));
tvendov	0:6435b67ad23c	993	EXTERN(void) jpeg_set_quality JPP((j_compress_ptr cinfo, int quality,
tvendov	0:6435b67ad23c	994	boolean force_baseline));
tvendov	0:6435b67ad23c	995	EXTERN(void) jpeg_set_linear_quality JPP((j_compress_ptr cinfo,
tvendov	0:6435b67ad23c	996	int scale_factor,
tvendov	0:6435b67ad23c	997	boolean force_baseline));
tvendov	0:6435b67ad23c	998	EXTERN(void) jpeg_default_qtables JPP((j_compress_ptr cinfo,
tvendov	0:6435b67ad23c	999	boolean force_baseline));
tvendov	0:6435b67ad23c	1000	EXTERN(void) jpeg_add_quant_table JPP((j_compress_ptr cinfo, int which_tbl,
tvendov	0:6435b67ad23c	1001	const unsigned int *basic_table,
tvendov	0:6435b67ad23c	1002	int scale_factor,
tvendov	0:6435b67ad23c	1003	boolean force_baseline));
tvendov	0:6435b67ad23c	1004	EXTERN(int) jpeg_quality_scaling JPP((int quality));
tvendov	0:6435b67ad23c	1005	EXTERN(void) jpeg_simple_progression JPP((j_compress_ptr cinfo));
tvendov	0:6435b67ad23c	1006	EXTERN(void) jpeg_suppress_tables JPP((j_compress_ptr cinfo,
tvendov	0:6435b67ad23c	1007	boolean suppress));
tvendov	0:6435b67ad23c	1008	EXTERN(JQUANT_TBL *) jpeg_alloc_quant_table JPP((j_common_ptr cinfo));
tvendov	0:6435b67ad23c	1009	EXTERN(JHUFF_TBL *) jpeg_alloc_huff_table JPP((j_common_ptr cinfo));
tvendov	0:6435b67ad23c	1010
tvendov	0:6435b67ad23c	1011	/* Main entry points for compression */
tvendov	0:6435b67ad23c	1012	EXTERN(void) jpeg_start_compress JPP((j_compress_ptr cinfo,
tvendov	0:6435b67ad23c	1013	boolean write_all_tables));
tvendov	0:6435b67ad23c	1014	EXTERN(JDIMENSION) jpeg_write_scanlines JPP((j_compress_ptr cinfo,
tvendov	0:6435b67ad23c	1015	JSAMPARRAY scanlines,
tvendov	0:6435b67ad23c	1016	JDIMENSION num_lines));
tvendov	0:6435b67ad23c	1017	EXTERN(void) jpeg_finish_compress JPP((j_compress_ptr cinfo));
tvendov	0:6435b67ad23c	1018
tvendov	0:6435b67ad23c	1019	/* Precalculate JPEG dimensions for current compression parameters. */
tvendov	0:6435b67ad23c	1020	EXTERN(void) jpeg_calc_jpeg_dimensions JPP((j_compress_ptr cinfo));
tvendov	0:6435b67ad23c	1021
tvendov	0:6435b67ad23c	1022	/* Replaces jpeg_write_scanlines when writing raw downsampled data. */
tvendov	0:6435b67ad23c	1023	EXTERN(JDIMENSION) jpeg_write_raw_data JPP((j_compress_ptr cinfo,
tvendov	0:6435b67ad23c	1024	JSAMPIMAGE data,
tvendov	0:6435b67ad23c	1025	JDIMENSION num_lines));
tvendov	0:6435b67ad23c	1026
tvendov	0:6435b67ad23c	1027	/* Write a special marker. See libjpeg.txt concerning safe usage. */
tvendov	0:6435b67ad23c	1028	EXTERN(void) jpeg_write_marker
tvendov	0:6435b67ad23c	1029	JPP((j_compress_ptr cinfo, int marker,
tvendov	0:6435b67ad23c	1030	const JOCTET * dataptr, unsigned int datalen));
tvendov	0:6435b67ad23c	1031	/* Same, but piecemeal. */
tvendov	0:6435b67ad23c	1032	EXTERN(void) jpeg_write_m_header
tvendov	0:6435b67ad23c	1033	JPP((j_compress_ptr cinfo, int marker, unsigned int datalen));
tvendov	0:6435b67ad23c	1034	EXTERN(void) jpeg_write_m_byte
tvendov	0:6435b67ad23c	1035	JPP((j_compress_ptr cinfo, int val));
tvendov	0:6435b67ad23c	1036
tvendov	0:6435b67ad23c	1037	/* Alternate compression function: just write an abbreviated table file */
tvendov	0:6435b67ad23c	1038	EXTERN(void) jpeg_write_tables JPP((j_compress_ptr cinfo));
tvendov	0:6435b67ad23c	1039
tvendov	0:6435b67ad23c	1040	/* Decompression startup: read start of JPEG datastream to see what's there */
tvendov	0:6435b67ad23c	1041	EXTERN(int) jpeg_read_header JPP((j_decompress_ptr cinfo,
tvendov	0:6435b67ad23c	1042	boolean require_image));
tvendov	0:6435b67ad23c	1043	/* Return value is one of: */
tvendov	0:6435b67ad23c	1044	#define JPEG_SUSPENDED 0 /* Suspended due to lack of input data */
tvendov	0:6435b67ad23c	1045	#define JPEG_HEADER_OK 1 /* Found valid image datastream */
tvendov	0:6435b67ad23c	1046	#define JPEG_HEADER_TABLES_ONLY 2 /* Found valid table-specs-only datastream */
tvendov	0:6435b67ad23c	1047	/* If you pass require_image = TRUE (normal case), you need not check for
tvendov	0:6435b67ad23c	1048	* a TABLES_ONLY return code; an abbreviated file will cause an error exit.
tvendov	0:6435b67ad23c	1049	* JPEG_SUSPENDED is only possible if you use a data source module that can
tvendov	0:6435b67ad23c	1050	* give a suspension return (the stdio source module doesn't).
tvendov	0:6435b67ad23c	1051	*/
tvendov	0:6435b67ad23c	1052
tvendov	0:6435b67ad23c	1053	/* Main entry points for decompression */
tvendov	0:6435b67ad23c	1054	EXTERN(boolean) jpeg_start_decompress JPP((j_decompress_ptr cinfo));
tvendov	0:6435b67ad23c	1055	EXTERN(JDIMENSION) jpeg_read_scanlines JPP((j_decompress_ptr cinfo,
tvendov	0:6435b67ad23c	1056	JSAMPARRAY scanlines,
tvendov	0:6435b67ad23c	1057	JDIMENSION max_lines));
tvendov	0:6435b67ad23c	1058	EXTERN(boolean) jpeg_finish_decompress JPP((j_decompress_ptr cinfo));
tvendov	0:6435b67ad23c	1059
tvendov	0:6435b67ad23c	1060	/* Replaces jpeg_read_scanlines when reading raw downsampled data. */
tvendov	0:6435b67ad23c	1061	EXTERN(JDIMENSION) jpeg_read_raw_data JPP((j_decompress_ptr cinfo,
tvendov	0:6435b67ad23c	1062	JSAMPIMAGE data,
tvendov	0:6435b67ad23c	1063	JDIMENSION max_lines));
tvendov	0:6435b67ad23c	1064
tvendov	0:6435b67ad23c	1065	/* Additional entry points for buffered-image mode. */
tvendov	0:6435b67ad23c	1066	EXTERN(boolean) jpeg_has_multiple_scans JPP((j_decompress_ptr cinfo));
tvendov	0:6435b67ad23c	1067	EXTERN(boolean) jpeg_start_output JPP((j_decompress_ptr cinfo,
tvendov	0:6435b67ad23c	1068	int scan_number));
tvendov	0:6435b67ad23c	1069	EXTERN(boolean) jpeg_finish_output JPP((j_decompress_ptr cinfo));
tvendov	0:6435b67ad23c	1070	EXTERN(boolean) jpeg_input_complete JPP((j_decompress_ptr cinfo));
tvendov	0:6435b67ad23c	1071	EXTERN(void) jpeg_new_colormap JPP((j_decompress_ptr cinfo));
tvendov	0:6435b67ad23c	1072	EXTERN(int) jpeg_consume_input JPP((j_decompress_ptr cinfo));
tvendov	0:6435b67ad23c	1073	/* Return value is one of: */
tvendov	0:6435b67ad23c	1074	/* #define JPEG_SUSPENDED 0 Suspended due to lack of input data */
tvendov	0:6435b67ad23c	1075	#define JPEG_REACHED_SOS 1 /* Reached start of new scan */
tvendov	0:6435b67ad23c	1076	#define JPEG_REACHED_EOI 2 /* Reached end of image */
tvendov	0:6435b67ad23c	1077	#define JPEG_ROW_COMPLETED 3 /* Completed one iMCU row */
tvendov	0:6435b67ad23c	1078	#define JPEG_SCAN_COMPLETED 4 /* Completed last iMCU row of a scan */
tvendov	0:6435b67ad23c	1079
tvendov	0:6435b67ad23c	1080	/* Precalculate output dimensions for current decompression parameters. */
tvendov	0:6435b67ad23c	1081	EXTERN(void) jpeg_core_output_dimensions JPP((j_decompress_ptr cinfo));
tvendov	0:6435b67ad23c	1082	EXTERN(void) jpeg_calc_output_dimensions JPP((j_decompress_ptr cinfo));
tvendov	0:6435b67ad23c	1083
tvendov	0:6435b67ad23c	1084	/* Control saving of COM and APPn markers into marker_list. */
tvendov	0:6435b67ad23c	1085	EXTERN(void) jpeg_save_markers
tvendov	0:6435b67ad23c	1086	JPP((j_decompress_ptr cinfo, int marker_code,
tvendov	0:6435b67ad23c	1087	unsigned int length_limit));
tvendov	0:6435b67ad23c	1088
tvendov	0:6435b67ad23c	1089	/* Install a special processing method for COM or APPn markers. */
tvendov	0:6435b67ad23c	1090	EXTERN(void) jpeg_set_marker_processor
tvendov	0:6435b67ad23c	1091	JPP((j_decompress_ptr cinfo, int marker_code,
tvendov	0:6435b67ad23c	1092	jpeg_marker_parser_method routine));
tvendov	0:6435b67ad23c	1093
tvendov	0:6435b67ad23c	1094	/* Read or write raw DCT coefficients --- useful for lossless transcoding. */
tvendov	0:6435b67ad23c	1095	EXTERN(jvirt_barray_ptr *) jpeg_read_coefficients JPP((j_decompress_ptr cinfo));
tvendov	0:6435b67ad23c	1096	EXTERN(void) jpeg_write_coefficients JPP((j_compress_ptr cinfo,
tvendov	0:6435b67ad23c	1097	jvirt_barray_ptr * coef_arrays));
tvendov	0:6435b67ad23c	1098	EXTERN(void) jpeg_copy_critical_parameters JPP((j_decompress_ptr srcinfo,
tvendov	0:6435b67ad23c	1099	j_compress_ptr dstinfo));
tvendov	0:6435b67ad23c	1100
tvendov	0:6435b67ad23c	1101	/* If you choose to abort compression or decompression before completing
tvendov	0:6435b67ad23c	1102	* jpeg_finish_(de)compress, then you need to clean up to release memory,
tvendov	0:6435b67ad23c	1103	* temporary files, etc. You can just call jpeg_destroy_(de)compress
tvendov	0:6435b67ad23c	1104	* if you're done with the JPEG object, but if you want to clean it up and
tvendov	0:6435b67ad23c	1105	* reuse it, call this:
tvendov	0:6435b67ad23c	1106	*/
tvendov	0:6435b67ad23c	1107	EXTERN(void) jpeg_abort_compress JPP((j_compress_ptr cinfo));
tvendov	0:6435b67ad23c	1108	EXTERN(void) jpeg_abort_decompress JPP((j_decompress_ptr cinfo));
tvendov	0:6435b67ad23c	1109
tvendov	0:6435b67ad23c	1110	/* Generic versions of jpeg_abort and jpeg_destroy that work on either
tvendov	0:6435b67ad23c	1111	* flavor of JPEG object. These may be more convenient in some places.
tvendov	0:6435b67ad23c	1112	*/
tvendov	0:6435b67ad23c	1113	EXTERN(void) jpeg_abort JPP((j_common_ptr cinfo));
tvendov	0:6435b67ad23c	1114	EXTERN(void) jpeg_destroy JPP((j_common_ptr cinfo));
tvendov	0:6435b67ad23c	1115
tvendov	0:6435b67ad23c	1116	/* Default restart-marker-resync procedure for use by data source modules */
tvendov	0:6435b67ad23c	1117	EXTERN(boolean) jpeg_resync_to_restart JPP((j_decompress_ptr cinfo,
tvendov	0:6435b67ad23c	1118	int desired));
tvendov	0:6435b67ad23c	1119
tvendov	0:6435b67ad23c	1120
tvendov	0:6435b67ad23c	1121	/* These marker codes are exported since applications and data source modules
tvendov	0:6435b67ad23c	1122	* are likely to want to use them.
tvendov	0:6435b67ad23c	1123	*/
tvendov	0:6435b67ad23c	1124
tvendov	0:6435b67ad23c	1125	#define JPEG_RST0 0xD0 /* RST0 marker code */
tvendov	0:6435b67ad23c	1126	#define JPEG_EOI 0xD9 /* EOI marker code */
tvendov	0:6435b67ad23c	1127	#define JPEG_APP0 0xE0 /* APP0 marker code */
tvendov	0:6435b67ad23c	1128	#define JPEG_COM 0xFE /* COM marker code */
tvendov	0:6435b67ad23c	1129
tvendov	0:6435b67ad23c	1130
tvendov	0:6435b67ad23c	1131	/* If we have a brain-damaged compiler that emits warnings (or worse, errors)
tvendov	0:6435b67ad23c	1132	* for structure definitions that are never filled in, keep it quiet by
tvendov	0:6435b67ad23c	1133	* supplying dummy definitions for the various substructures.
tvendov	0:6435b67ad23c	1134	*/
tvendov	0:6435b67ad23c	1135
tvendov	0:6435b67ad23c	1136	#ifdef INCOMPLETE_TYPES_BROKEN
tvendov	0:6435b67ad23c	1137	#ifndef JPEG_INTERNALS /* will be defined in jpegint.h */
tvendov	0:6435b67ad23c	1138	struct jvirt_sarray_control { long dummy; };
tvendov	0:6435b67ad23c	1139	struct jvirt_barray_control { long dummy; };
tvendov	0:6435b67ad23c	1140	struct jpeg_comp_master { long dummy; };
tvendov	0:6435b67ad23c	1141	struct jpeg_c_main_controller { long dummy; };
tvendov	0:6435b67ad23c	1142	struct jpeg_c_prep_controller { long dummy; };
tvendov	0:6435b67ad23c	1143	struct jpeg_c_coef_controller { long dummy; };
tvendov	0:6435b67ad23c	1144	struct jpeg_marker_writer { long dummy; };
tvendov	0:6435b67ad23c	1145	struct jpeg_color_converter { long dummy; };
tvendov	0:6435b67ad23c	1146	struct jpeg_downsampler { long dummy; };
tvendov	0:6435b67ad23c	1147	struct jpeg_forward_dct { long dummy; };
tvendov	0:6435b67ad23c	1148	struct jpeg_entropy_encoder { long dummy; };
tvendov	0:6435b67ad23c	1149	struct jpeg_decomp_master { long dummy; };
tvendov	0:6435b67ad23c	1150	struct jpeg_d_main_controller { long dummy; };
tvendov	0:6435b67ad23c	1151	struct jpeg_d_coef_controller { long dummy; };
tvendov	0:6435b67ad23c	1152	struct jpeg_d_post_controller { long dummy; };
tvendov	0:6435b67ad23c	1153	struct jpeg_input_controller { long dummy; };
tvendov	0:6435b67ad23c	1154	struct jpeg_marker_reader { long dummy; };
tvendov	0:6435b67ad23c	1155	struct jpeg_entropy_decoder { long dummy; };
tvendov	0:6435b67ad23c	1156	struct jpeg_inverse_dct { long dummy; };
tvendov	0:6435b67ad23c	1157	struct jpeg_upsampler { long dummy; };
tvendov	0:6435b67ad23c	1158	struct jpeg_color_deconverter { long dummy; };
tvendov	0:6435b67ad23c	1159	struct jpeg_color_quantizer { long dummy; };
tvendov	0:6435b67ad23c	1160	#endif /* JPEG_INTERNALS */
tvendov	0:6435b67ad23c	1161	#endif /* INCOMPLETE_TYPES_BROKEN */
tvendov	0:6435b67ad23c	1162
tvendov	0:6435b67ad23c	1163
tvendov	0:6435b67ad23c	1164	/*
tvendov	0:6435b67ad23c	1165	* The JPEG library modules define JPEG_INTERNALS before including this file.
tvendov	0:6435b67ad23c	1166	* The internal structure declarations are read only when that is true.
tvendov	0:6435b67ad23c	1167	* Applications using the library should not include jpegint.h, but may wish
tvendov	0:6435b67ad23c	1168	* to include jerror.h.
tvendov	0:6435b67ad23c	1169	*/
tvendov	0:6435b67ad23c	1170
tvendov	0:6435b67ad23c	1171	#ifdef JPEG_INTERNALS
tvendov	0:6435b67ad23c	1172	#include "jpegint.h" /* fetch private declarations */
tvendov	0:6435b67ad23c	1173	#include "jerror.h" /* fetch error codes too */
tvendov	0:6435b67ad23c	1174	#endif
tvendov	0:6435b67ad23c	1175
tvendov	0:6435b67ad23c	1176	#ifdef __cplusplus
tvendov	0:6435b67ad23c	1177	#ifndef DONT_USE_EXTERN_C
tvendov	0:6435b67ad23c	1178	}
tvendov	0:6435b67ad23c	1179	#endif
tvendov	0:6435b67ad23c	1180	#endif
tvendov	0:6435b67ad23c	1181
tvendov	0:6435b67ad23c	1182	#endif /* JPEGLIB_H */

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Type:	Program
Created:	14 Mar 2019
Imports:	1
Forks:	0
Commits:	1
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