jidctflt.c File Reference

#include "jinclude.h"
#include "jpeglib.h"
#include "jdct.h"

Go to the source code of this file.

Macros
#define	JPEG_INTERNALS
#define	DEQUANTIZE(coef, quantval)   (((FAST_FLOAT) (coef)) * (quantval))

Functions
	jpeg_idct_float (j_decompress_ptr cinfo, jpeg_component_info *compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)

Macro Definition Documentation

DEQUANTIZE

#define DEQUANTIZE	(		coef,
			quantval
	)		(((FAST_FLOAT) (coef)) * (quantval))

Definition at line 60 of file jidctflt.c.

Referenced by jpeg_idct_float().

JPEG_INTERNALS

#define JPEG_INTERNALS

Definition at line 39 of file jidctflt.c.

Function Documentation

jpeg_idct_float()

jpeg_idct_float	(	j_decompress_ptr	cinfo,
		jpeg_component_info *	compptr,
		JCOEFPTR	coef_block,
		JSAMPARRAY	output_buf,
		JDIMENSION	output_col
	)

Definition at line 68 of file jidctflt.c.

References coef_block, jpeg_component_info::dct_table, DCTSIZE, DCTSIZE2, DEQUANTIZE, DESCALE, for(), IDCT_range_limit, int, output_col, RANGE_MASK, and SHIFT_TEMPS.

Referenced by start_pass().