#include "jinclude.h"
#include "mrpt_jpeglib.h"
#include <mrpt/utils/mrpt_macros.h>

Classes
struct	my_upsampler

Macros
#define	JPEG_INTERNALS

#define	SCALEBITS 16 /* speediest right-shift on some machines */

#define	ONE_HALF ((INT32)1 << (SCALEBITS - 1))

#define	FIX(x) ((INT32)((x) * (1L << SCALEBITS) + 0.5))

Typedefs
typedef my_upsampler *	my_upsample_ptr

Functions
	build_ycc_rgb_table (j_decompress_ptr cinfo)

	start_pass_merged_upsample (j_decompress_ptr cinfo)

	merged_2v_upsample (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr, JDIMENSION in_row_groups_avail, JSAMPARRAY output_buf, JDIMENSION out_row_ctr, JDIMENSION out_rows_avail)

	merged_1v_upsample (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr, JDIMENSION in_row_groups_avail, JSAMPARRAY output_buf, JDIMENSION out_row_ctr, JDIMENSION out_rows_avail)

	h2v1_merged_upsample (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf)

	h2v2_merged_upsample (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf)

	jinit_merged_upsampler (j_decompress_ptr cinfo)

Macro Definition Documentation

◆ FIX

#define FIX ( x ) ((INT32)((x) * (1L << SCALEBITS) + 0.5))

Definition at line 50 of file jdmerge.cpp.

Referenced by build_ycc_rgb_table().

◆ JPEG_INTERNALS

#define JPEG_INTERNALS

Definition at line 10 of file jdmerge.cpp.

◆ ONE_HALF

#define ONE_HALF ((INT32)1 << (SCALEBITS - 1))

Definition at line 49 of file jdmerge.cpp.

Referenced by build_ycc_rgb_table().

◆ SCALEBITS

#define SCALEBITS 16 /* speediest right-shift on some machines */

Definition at line 48 of file jdmerge.cpp.

Referenced by build_ycc_rgb_table(), h2v1_merged_upsample(), and h2v2_merged_upsample().

Typedef Documentation

◆ my_upsample_ptr

typedef my_upsampler* my_upsample_ptr

Definition at line 46 of file jdmerge.cpp.

Function Documentation

◆ build_ycc_rgb_table()

build_ycc_rgb_table ( j_decompress_ptr cinfo )

Definition at line 58 of file jdmerge.cpp.

References my_upsampler::Cb_b_tab, my_upsampler::Cb_g_tab, CENTERJSAMPLE, my_upsampler::Cr_g_tab, my_upsampler::Cr_r_tab, FIX, JPOOL_IMAGE, MAXJSAMPLE, ONE_HALF, RIGHT_SHIFT, SCALEBITS, SHIFT_TEMPS, and SIZEOF.

Referenced by jinit_merged_upsampler().

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◆ h2v1_merged_upsample()

h2v1_merged_upsample	(	j_decompress_ptr	cinfo,
		JSAMPIMAGE	input_buf,
		JDIMENSION	in_row_group_ctr,
		JSAMPARRAY	output_buf
	)

Definition at line 201 of file jdmerge.cpp.

References my_upsampler::Cb_b_tab, my_upsampler::Cb_g_tab, my_upsampler::Cr_g_tab, my_upsampler::Cr_r_tab, for(), GETJSAMPLE, outptr, output_buf, range_limit, RIGHT_SHIFT, SCALEBITS, and SHIFT_TEMPS.

Referenced by jinit_merged_upsampler().

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◆ h2v2_merged_upsample()

h2v2_merged_upsample	(	j_decompress_ptr	cinfo,
		JSAMPIMAGE	input_buf,
		JDIMENSION	in_row_group_ctr,
		JSAMPARRAY	output_buf
	)

Definition at line 264 of file jdmerge.cpp.

References my_upsampler::Cb_b_tab, my_upsampler::Cb_g_tab, my_upsampler::Cr_g_tab, my_upsampler::Cr_r_tab, for(), GETJSAMPLE, output_buf, range_limit, RIGHT_SHIFT, SCALEBITS, and SHIFT_TEMPS.

Referenced by jinit_merged_upsampler().

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◆ jinit_merged_upsampler()

jinit_merged_upsampler ( j_decompress_ptr cinfo )

Definition at line 347 of file jdmerge.cpp.

References build_ycc_rgb_table(), FALSE, h2v1_merged_upsample(), h2v2_merged_upsample(), JPOOL_IMAGE, merged_1v_upsample(), merged_2v_upsample(), jpeg_upsampler::need_context_rows, my_upsampler::out_row_width, my_upsampler::pub, SIZEOF, my_upsampler::spare_row, and start_pass_merged_upsample().

Referenced by master_selection().

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◆ merged_1v_upsample()

merged_1v_upsample	(	j_decompress_ptr	cinfo,
		JSAMPIMAGE	input_buf,
		JDIMENSION *	in_row_group_ctr,
		JDIMENSION	in_row_groups_avail,
		JSAMPARRAY	output_buf,
		JDIMENSION *	out_row_ctr,
		JDIMENSION	out_rows_avail
	)

Definition at line 169 of file jdmerge.cpp.

References MRPT_UNUSED_PARAM, and output_buf.

Referenced by jinit_merged_upsampler().

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◆ merged_2v_upsample()

merged_2v_upsample	(	j_decompress_ptr	cinfo,
		JSAMPIMAGE	input_buf,
		JDIMENSION *	in_row_group_ctr,
		JDIMENSION	in_row_groups_avail,
		JSAMPARRAY	output_buf,
		JDIMENSION *	out_row_ctr,
		JDIMENSION	out_rows_avail
	)