TinyTIFFWriter: Internal functions

Data Structures
struct	TinyTIFFWriterFile
	this struct represents a TIFF file More...

Macros
#define	TIFF_HEADER_MAX_ENTRIES   20
	maximum number of field entries in a TIFF header
#define	TIFF_HEADER_SIZE   500
	fixed size of the TIFF frame header in bytes
#define	WRITE16DIRECT(filen, data)
	write a 2-byte word data directly into a file fileno
#define	WRITE16DIRECT_CAST(filen, data)
	write a data word data , which is first cast into a 2-byte word directly into a file fileno
#define	WRITE32DIRECT(filen, data)
	write a 4-byte word data directly into a file fileno
#define	WRITE32DIRECT_CAST(filen, data)
	write a data word data , which is first cast into a 4-byte word directly into a file fileno
#define	WRITE8DIRECT(filen, data)
	write a data word data , which is first cast into a 1-byte word directly into a file fileno
#define	WRITEH16_LE(filen, data)
	writes a value, which is cast to a 16-bit word at the current position into the current file header and advances the position by 4 bytes
#define	WRITEH16DIRECT_LE(filen, data)
	writes a 16-bit word at the current position into the current file header and advances the position by 4 bytes
#define	WRITEH32_LE(filen, data)
	writes a value, which is cast to a 32-bit word at the current position into the current file header and advances the position by 4 bytes
#define	WRITEH32DIRECT_LE(filen, data)
	writes a 32-bit word at the current position into the current file header and advances the position by 4 bytes
#define	WRITEH8(filen, data)   { filen->lastHeader[filen->pos]=data; filen->pos+=1; }
	writes an 8-bit word at the current position into the current file header and advances the position by 4 bytes
#define	WRITEH8DIRECT(filen, data)   { filen->lastHeader[filen->pos]=data; filen->pos+=1; }
	writes an 8-bit word at the current position into the current file header and advances the position by 4 bytes

Functions
int	TIFF_get_byteorder ()
	determines the byte order of the system
void	TinyTIFFWriter_writeIFDEntrySHORT (TinyTIFFWriterFile *tiff, uint16_t tag, uint16_t data)
	write an 16-bit word IFD entry

Detailed Description

Macro Definition Documentation

WRITE16DIRECT

#define WRITE16DIRECT	(		filen,
			data
	)

Value:

    { \
    TinyTIFFWriter_fwrite((void*)(&(data)), 2, 1, filen); \
}

write a 2-byte word data directly into a file fileno

WRITE16DIRECT_CAST

#define WRITE16DIRECT_CAST	(		filen,
			data
	)

Value:

    { \
    uint16_t d=data; \
    WRITE16DIRECT((filen), d); \
}

write a data word data , which is first cast into a 2-byte word directly into a file fileno

WRITE32DIRECT

#define WRITE32DIRECT	(		filen,
			data
	)

Value:

    { \
    TinyTIFFWriter_fwrite((void*)(&(data)), 4, 1, filen); \
}

write a 4-byte word data directly into a file fileno

WRITE32DIRECT_CAST

#define WRITE32DIRECT_CAST	(		filen,
			data
	)

Value:

    { \
    uint32_t d=data; \
    WRITE32DIRECT((filen), d); \
}

write a data word data , which is first cast into a 4-byte word directly into a file fileno

WRITE8DIRECT

#define WRITE8DIRECT	(		filen,
			data
	)

Value:

    {\
    uint8_t ch=data; \
    TinyTIFFWriter_fwrite(&ch, 1, 1, filen);\
}

write a data word data , which is first cast into a 1-byte word directly into a file fileno

WRITEH16_LE

#define WRITEH16_LE	(		filen,
			data
	)

Value:

    { \
    uint16_t d=data; \
    WRITEH16DIRECT_LE(filen, d); \
}

writes a value, which is cast to a 16-bit word at the current position into the current file header and advances the position by 4 bytes

WRITEH16DIRECT_LE

#define WRITEH16DIRECT_LE	(		filen,
			data
	)

Value:

    { \
    *((uint16_t*)(&filen->lastHeader[filen->pos]))=data; \
    filen->pos+=2; \
}

writes a 16-bit word at the current position into the current file header and advances the position by 4 bytes

WRITEH32_LE

#define WRITEH32_LE	(		filen,
			data
	)

Value:

    { \
    uint32_t d=data; \
    WRITEH32DIRECT_LE(filen, d); \
}

writes a value, which is cast to a 32-bit word at the current position into the current file header and advances the position by 4 bytes

WRITEH32DIRECT_LE

#define WRITEH32DIRECT_LE	(		filen,
			data
	)

Value:

    { \
    *((uint32_t*)(&filen->lastHeader[filen->pos]))=data; \
    filen->pos+=4;\
}

writes a 32-bit word at the current position into the current file header and advances the position by 4 bytes