C:/Users/Apocalyptica/Documents/Uni/Visualisierung LU/volRendering/Core/jpeglib/jdct.h File Reference

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Defines
#define	IFAST_SCALE_BITS 13
#define	IDCT_range_limit(cinfo) ((cinfo)->sample_range_limit + CENTERJSAMPLE)
#define	RANGE_MASK (MAXJSAMPLE * 4 + 3)
#define	ONE ((INT32) 1)
#define	CONST_SCALE (ONE << CONST_BITS)
#define	FIX(x) ((INT32) ((x) * CONST_SCALE + 0.5))
#define	DESCALE(x, n) RIGHT_SHIFT((x) + (ONE << ((n)-1)), n)
#define	MULTIPLY16C16(var, const) ((var) * (const))
#define	MULTIPLY16V16(var1, var2) ((var1) * (var2))
Typedefs
typedef INT32	DCTELEM
typedef MULTIPLIER	ISLOW_MULT_TYPE
typedef INT32	IFAST_MULT_TYPE
typedef FAST_FLOAT	FLOAT_MULT_TYPE
Functions
typedef	JMETHOD (void, forward_DCT_method_ptr,(DCTELEM *data))
typedef	JMETHOD (void, float_DCT_method_ptr,(FAST_FLOAT *data))
	EXTERN (void) jpeg_fdct_islow JPP((DCTELEM *data))
Variables
jpeg_component_info *	compptr
jpeg_component_info JCOEFPTR	coef_block
jpeg_component_info JCOEFPTR JSAMPARRAY	output_buf
jpeg_component_info JCOEFPTR JSAMPARRAY JDIMENSION	output_col

Define Documentation

#define CONST_SCALE (ONE << CONST_BITS)

#define DESCALE	(	x,
		n		)	RIGHT_SHIFT((x) + (ONE << ((n)-1)), n)

#define FIX ( x ) ((INT32) ((x) * CONST_SCALE + 0.5))

#define IDCT_range_limit ( cinfo ) ((cinfo)->sample_range_limit + CENTERJSAMPLE)

#define IFAST_SCALE_BITS 13

#define MULTIPLY16C16	(	var,
		const		)	((var) * (const))

#define MULTIPLY16V16	(	var1,
		var2		)	((var1) * (var2))

#define ONE ((INT32) 1)

#define RANGE_MASK (MAXJSAMPLE * 4 + 3)

typedef INT32 DCTELEM

typedef FAST_FLOAT FLOAT_MULT_TYPE

typedef INT32 IFAST_MULT_TYPE

typedef MULTIPLIER ISLOW_MULT_TYPE

EXTERN ( void )