thirdparty/ijg/example/jdatasrc.c File Reference

#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <setjmp.h>
#include "compiler.h"
#include "board.h"
#include "et024006dhu.h"
#include "jpeg_decoder.h"
#include "conf_jpeg_decoder.h"
#include "jpeglib.h"
#include "jinclude.h"

Data Structures
struct	extended_error_mgr
struct	jpeg_lib
struct	my_source_mgr

Macros
#define	DEFAULT_MAX_IMAGE_HEIGHT   128
#define	DEFAULT_MAX_IMAGE_WIDTH   128
#define	DEFAULT_PIXEL_SIZE_IN_BYTES   2
#define	JPEG_INPUT_BUF_SIZE   1024

Typedefs
typedef struct extended_error_mgr *	extended_error_ptr
typedef my_source_mgr *	my_src_ptr

Functions
	extended_error_exit (j_common_ptr cinfo)
static boolean	fill_input_buffer (j_decompress_ptr cinfo)
static void	init_source (j_decompress_ptr cinfo)
bool	jpeg_lib_decode (int offset)
void *	jpeg_lib_decode_ex (int offset, U16 *width, U16 *height)
void	jpeg_lib_exit (void)
bool	jpeg_lib_init (void)
void	jpeg_stdio_src (j_decompress_ptr cinfo, FILE *infile)
static void	skip_input_data (j_decompress_ptr cinfo, long num_bytes)
void	stream_close ()
void	stream_open (void)
size_t	stream_read (JOCTET *buffer, size_t nb_byte)
void	stream_seek (int offset)
static void	term_source (j_decompress_ptr cinfo)

Variables
static struct jpeg_lib	jpeg_lib_data
uint16_t *	jpeg_out_buffer_pos
const U8 *	stream_jpeg_src_ptr
static size_t	stream_offset
U16	stream_src_size

#define DEFAULT_MAX_IMAGE_HEIGHT   128

#define DEFAULT_MAX_IMAGE_WIDTH   128

#define DEFAULT_PIXEL_SIZE_IN_BYTES   2

#define JPEG_INPUT_BUF_SIZE   1024

Referenced by fill_input_buffer(), and jpeg_stdio_src().

typedef struct extended_error_mgr* extended_error_ptr

typedef my_source_mgr* my_src_ptr

extended_error_exit

(

j_common_ptr

cinfo

)

References cinfo, and extended_error_mgr::setjmp_buffer.

Referenced by jpeg_lib_init().

static boolean fill_input_buffer ( j_decompress_ptr  cinfo )

static

References my_source_mgr::buffer, jpeg_source_mgr::bytes_in_buffer, FALSE, JPEG_EOI, JPEG_INPUT_BUF_SIZE, jpeg_source_mgr::next_input_byte, my_source_mgr::pub, jpeg_decompress_struct::src, my_source_mgr::start_of_file, stream_read(), and TRUE.

Referenced by jpeg_stdio_src(), and skip_input_data().

static void init_source ( j_decompress_ptr  cinfo )

static

References jpeg_decompress_struct::src, my_source_mgr::start_of_file, and TRUE.

Referenced by jpeg_stdio_src().

bool jpeg_lib_decode

(

int

offset

)

Referenced by jpeg_lib_decode_ex().

void* jpeg_lib_decode_ex	(	int	offset,
		U16 *	width,
		U16 *	height
	)

Referenced by ai_usb_ms_support_info_image(), and main().

void jpeg_lib_exit

(

void

)

Referenced by main().

bool jpeg_lib_init

(

void

)

Referenced by ai_usb_ms_mp3_support_init(), and main().

void jpeg_stdio_src	(	j_decompress_ptr	cinfo,
		FILE *	infile
	)

References my_source_mgr::buffer, jpeg_source_mgr::bytes_in_buffer, cinfo, fill_input_buffer(), my_source_mgr::infile, init_source(), JPEG_INPUT_BUF_SIZE, jpeg_resync_to_restart(), JPOOL_PERMANENT, jpeg_source_mgr::next_input_byte, NULL, my_source_mgr::pub, SIZEOF, skip_input_data(), jpeg_decompress_struct::src, and term_source().

Referenced by jpeg_lib_decode().

static void skip_input_data ( j_decompress_ptr  cinfo, long  num_bytes  )

static

References jpeg_source_mgr::bytes_in_buffer, fill_input_buffer(), if(), jpeg_source_mgr::next_input_byte, my_source_mgr::pub, and jpeg_decompress_struct::src.

Referenced by jpeg_stdio_src().

void stream_close

(

)

Referenced by jpeg_lib_decode().

void stream_open

(

void

)

References stream_offset.

Referenced by jpeg_lib_decode().

size_t stream_read	(	JOCTET *	buffer,
		size_t	nb_byte
	)

References stream_jpeg_src_ptr, stream_offset, and stream_src_size.

Referenced by fill_input_buffer().

void stream_seek

(

int

offset

)

References stream_offset.

Referenced by jpeg_lib_decode().

static void term_source ( j_decompress_ptr  cinfo )

static

Referenced by jpeg_stdio_src().

struct jpeg_lib jpeg_lib_data

static

Referenced by jpeg_lib_decode(), jpeg_lib_decode_ex(), jpeg_lib_exit(), and jpeg_lib_init().

uint16_t* jpeg_out_buffer_pos

Referenced by jpeg_lib_decode(), and ycc_rgb565_convert().

const U8* stream_jpeg_src_ptr

Referenced by main(), and stream_read().

size_t stream_offset

static

Referenced by stream_open(), stream_read(), and stream_seek().

U16 stream_src_size

Referenced by main(), and stream_read().