jcparam.cpp File Reference

Main MRPT website > C++ reference for MRPT 1.5.7

#include "jinclude.h"
#include "mrpt_jpeglib.h"

Include dependency graph for jcparam.cpp:

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Macros
#define	JPEG_INTERNALS

#define	SET_COMP(index, id, hsamp, vsamp, quant, dctbl, actbl)

Functions
	jpeg_add_quant_table (j_compress_ptr cinfo, int which_tbl, const unsigned int *basic_table, int scale_factor, boolean force_baseline)

	jpeg_set_linear_quality (j_compress_ptr cinfo, int scale_factor, boolean force_baseline)

	jpeg_quality_scaling (int quality)

	jpeg_set_quality (j_compress_ptr cinfo, int quality, boolean force_baseline)

	add_huff_table (j_compress_ptr cinfo, JHUFF_TBL *htblptr, const UINT8 bits, const UINT8 *val)

	std_huff_tables (j_compress_ptr cinfo)

	jpeg_set_defaults (j_compress_ptr cinfo)

	jpeg_default_colorspace (j_compress_ptr cinfo)

	jpeg_set_colorspace (j_compress_ptr cinfo, J_COLOR_SPACE colorspace)

	fill_a_scan (jpeg_scan_info *scanptr, int ci, int Ss, int Se, int Ah, int Al)

	fill_scans (jpeg_scan_info *scanptr, int ncomps, int Ss, int Se, int Ah, int Al)

	fill_dc_scans (jpeg_scan_info *scanptr, int ncomps, int Ah, int Al)

	jpeg_simple_progression (j_compress_ptr cinfo)

Macro Definition Documentation

◆ JPEG_INTERNALS

#define JPEG_INTERNALS

Definition at line 10 of file jcparam.cpp.

◆ SET_COMP

#define SET_COMP	(		index,
			id,
			hsamp,
			vsamp,
			quant,
			dctbl,
			actbl
	)

Value:

(compptr = &cinfo->comp_info[index], \
   compptr->component_id = (id), \
   compptr->h_samp_factor = (hsamp), \
   compptr->v_samp_factor = (vsamp), \
   compptr->quant_tbl_no = (quant), \
   compptr->dc_tbl_no = (dctbl), \
   compptr->ac_tbl_no = (actbl) )

Referenced by jpeg_set_colorspace().

Function Documentation

◆ add_huff_table()

add_huff_table	(	j_compress_ptr	cinfo,
		JHUFF_TBL **	htblptr,
		const UINT8 *	bits,
		const UINT8 *	val
	)

Definition at line 149 of file jcparam.cpp.

References ERREXIT, FALSE, jpeg_alloc_huff_table(), MEMCOPY, SIZEOF, and val.

Referenced by std_huff_tables().

◆ fill_a_scan()

fill_a_scan	(	jpeg_scan_info *	scanptr,
		int	ci,
		int	Ss,
		int	Se,
		int	Ah,
		int	Al
	)

Definition at line 472 of file jcparam.cpp.

Referenced by jpeg_simple_progression().

◆ fill_dc_scans()

fill_dc_scans	(	jpeg_scan_info *	scanptr,
		int	ncomps,
		int	Ah,
		int	Al
	)

Definition at line 506 of file jcparam.cpp.

References fill_scans(), and MAX_COMPS_IN_SCAN.

Referenced by jpeg_simple_progression().

◆ fill_scans()

fill_scans	(	jpeg_scan_info *	scanptr,
		int	ncomps,
		int	Ss,
		int	Se,
		int	Ah,
		int	Al
	)

Definition at line 487 of file jcparam.cpp.

Referenced by fill_dc_scans(), and jpeg_simple_progression().

◆ jpeg_add_quant_table()

jpeg_add_quant_table	(	j_compress_ptr	cinfo,
		int	which_tbl,
		const unsigned int *	basic_table,
		int	scale_factor,
		boolean	force_baseline
	)

Definition at line 20 of file jcparam.cpp.

References basic_table, CSTATE_START, DCTSIZE2, ERREXIT1, FALSE, force_baseline, jpeg_alloc_quant_table(), NUM_QUANT_TBLS, scale_factor, and which_tbl.

Referenced by jpeg_set_linear_quality().

◆ jpeg_default_colorspace()

jpeg_default_colorspace ( j_compress_ptr cinfo )

Definition at line 356 of file jcparam.cpp.

References ERREXIT, JCS_CMYK, JCS_GRAYSCALE, JCS_RGB, JCS_UNKNOWN, JCS_YCbCr, JCS_YCCK, and jpeg_set_colorspace().

Referenced by jpeg_set_defaults().

◆ jpeg_quality_scaling()

jpeg_quality_scaling ( int quality )

Definition at line 103 of file jcparam.cpp.

References quality.

Referenced by jpeg_set_quality().

◆ jpeg_set_colorspace()

jpeg_set_colorspace	(	j_compress_ptr	cinfo,
		J_COLOR_SPACE	colorspace
	)

Definition at line 388 of file jcparam.cpp.

References colorspace, compptr, CSTATE_START, ERREXIT, ERREXIT1, ERREXIT2, FALSE, JCS_CMYK, JCS_GRAYSCALE, JCS_RGB, JCS_UNKNOWN, JCS_YCbCr, JCS_YCCK, MAX_COMPONENTS, SET_COMP, and TRUE.

Referenced by jpeg_copy_critical_parameters(), and jpeg_default_colorspace().

◆ jpeg_set_defaults()

jpeg_set_defaults ( j_compress_ptr cinfo )

Definition at line 265 of file jcparam.cpp.

References BITS_IN_JSAMPLE, CSTATE_START, ERREXIT1, FALSE, JDCT_DEFAULT, jpeg_default_colorspace(), jpeg_set_quality(), JPOOL_PERMANENT, MAX_COMPONENTS, NUM_ARITH_TBLS, SIZEOF, std_huff_tables(), and TRUE.

Referenced by jpeg_copy_critical_parameters(), and mrpt::utils::CImage::saveToStreamAsJPEG().

◆ jpeg_set_linear_quality()

jpeg_set_linear_quality	(	j_compress_ptr	cinfo,
		int	scale_factor,
		boolean	force_baseline
	)

Definition at line 61 of file jcparam.cpp.

References DCTSIZE2, force_baseline, jpeg_add_quant_table(), and scale_factor.

Referenced by jpeg_set_quality().

◆ jpeg_set_quality()

jpeg_set_quality	(	j_compress_ptr	cinfo,
		int	quality,
		boolean	force_baseline
	)

Definition at line 129 of file jcparam.cpp.

References force_baseline, jpeg_quality_scaling(), jpeg_set_linear_quality(), and quality.

Referenced by jpeg_set_defaults(), and mrpt::utils::CImage::saveToStreamAsJPEG().

◆ jpeg_simple_progression()

jpeg_simple_progression ( j_compress_ptr cinfo )

Definition at line 534 of file jcparam.cpp.

References CSTATE_START, ERREXIT1, fill_a_scan(), fill_dc_scans(), fill_scans(), JCS_YCbCr, JPOOL_PERMANENT, MAX, MAX_COMPS_IN_SCAN, and SIZEOF.

◆ std_huff_tables()

std_huff_tables ( j_compress_ptr cinfo )

Definition at line 179 of file jcparam.cpp.

References add_huff_table().

Referenced by jpeg_set_defaults().

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