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Drawing with DirectDraw & GDI

, 24 May 2002
Drawing Graphics fast with DirectDraw than with GDI
/* $Header: C:\\RCS\\D\\FreeImage\\Source\\LibTIFF\\tif_dir.h,v 1.0 2001-04-13 00:42:30+02 floris_van_den_berg Exp floris_van_den_berg $ */

/*
 * Copyright (c) 1988-1997 Sam Leffler
 * Copyright (c) 1991-1997 Silicon Graphics, Inc.
 *
 * Permission to use, copy, modify, distribute, and sell this software and 
 * its documentation for any purpose is hereby granted without fee, provided
 * that (i) the above copyright notices and this permission notice appear in
 * all copies of the software and related documentation, and (ii) the names of
 * Sam Leffler and Silicon Graphics may not be used in any advertising or
 * publicity relating to the software without the specific, prior written
 * permission of Sam Leffler and Silicon Graphics.
 * 
 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 
 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 
 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  
 * 
 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF 
 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 
 * OF THIS SOFTWARE.
 */

#ifndef _TIFFDIR_
#define	_TIFFDIR_
/*
 * ``Library-private'' Directory-related Definitions.
 */

/*
 * Internal format of a TIFF directory entry.
 */
typedef	struct {
#define	FIELD_SETLONGS	3
	/* bit vector of fields that are set */
	u_long	td_fieldsset[FIELD_SETLONGS];

	uint32	td_imagewidth, td_imagelength, td_imagedepth;
	uint32	td_tilewidth, td_tilelength, td_tiledepth;
	uint32	td_subfiletype;
	uint16	td_bitspersample;
	uint16	td_sampleformat;
	uint16	td_compression;
	uint16	td_photometric;
	uint16	td_threshholding;
	uint16	td_fillorder;
	uint16	td_orientation;
	uint16	td_samplesperpixel;
	uint32	td_rowsperstrip;
	uint16	td_minsamplevalue, td_maxsamplevalue;
	double	td_sminsamplevalue, td_smaxsamplevalue;
	float	td_xresolution, td_yresolution;
	uint16	td_resolutionunit;
	uint16	td_planarconfig;
	float	td_xposition, td_yposition;
	uint16	td_pagenumber[2];
	uint16*	td_colormap[3];
	uint16	td_halftonehints[2];
	uint16	td_extrasamples;
	uint16*	td_sampleinfo;
	double	td_stonits;
	char*	td_documentname;
	char*	td_artist;
	char*	td_datetime;
	char*	td_hostcomputer;
	char*	td_imagedescription;
	char*	td_make;
	char*	td_model;
	char*	td_software;
	char*	td_pagename;
	tstrip_t td_stripsperimage;
	tstrip_t td_nstrips;		/* size of offset & bytecount arrays */
	uint32*	td_stripoffset;
	uint32*	td_stripbytecount;
#if SUBIFD_SUPPORT
	uint16	td_nsubifd;
	uint32*	td_subifd;
#endif
#ifdef YCBCR_SUPPORT
	float*	td_ycbcrcoeffs;
	uint16	td_ycbcrsubsampling[2];
	uint16	td_ycbcrpositioning;
#endif
#ifdef COLORIMETRY_SUPPORT
	float*	td_whitepoint;
	float*	td_primarychromas;
	float*	td_refblackwhite;
	uint16*	td_transferfunction[3];
#endif
#ifdef CMYK_SUPPORT
	uint16	td_inkset;
	uint16	td_ninks;
	uint16	td_dotrange[2];
	int	td_inknameslen;
	char*	td_inknames;
	char*	td_targetprinter;
#endif
#ifdef ICC_SUPPORT
	uint32	td_profileLength;
	void	*td_profileData;
#endif
#ifdef PHOTOSHOP_SUPPORT
	uint32	td_photoshopLength;
	void	*td_photoshopData;
#endif
#ifdef IPTC_SUPPORT
	uint32	td_richtiffiptcLength;
	void	*td_richtiffiptcData;
#endif
        /* Begin Pixar Tag values. */
        uint32	td_imagefullwidth, td_imagefulllength;
 	char*	td_textureformat;
 	char*	td_wrapmodes;
 	float	td_fovcot;
 	float*	td_matrixWorldToScreen;
 	float*	td_matrixWorldToCamera;
 	/* End Pixar Tag Values. */
} TIFFDirectory;

/*
 * Field flags used to indicate fields that have
 * been set in a directory, and to reference fields
 * when manipulating a directory.
 */

/*
 * FIELD_IGNORE is used to signify tags that are to
 * be processed but otherwise ignored.  This permits
 * antiquated tags to be quietly read and discarded.
 * Note that a bit *is* allocated for ignored tags;
 * this is understood by the directory reading logic
 * which uses this fact to avoid special-case handling
 */ 
#define	FIELD_IGNORE			0

/* multi-item fields */
#define	FIELD_IMAGEDIMENSIONS		1
#define FIELD_TILEDIMENSIONS		2
#define	FIELD_RESOLUTION		3
#define	FIELD_POSITION			4

/* single-item fields */
#define	FIELD_SUBFILETYPE		5
#define	FIELD_BITSPERSAMPLE		6
#define	FIELD_COMPRESSION		7
#define	FIELD_PHOTOMETRIC		8
#define	FIELD_THRESHHOLDING		9
#define	FIELD_FILLORDER			10
#define	FIELD_DOCUMENTNAME		11
#define	FIELD_IMAGEDESCRIPTION		12
#define	FIELD_MAKE			13
#define	FIELD_MODEL			14
#define	FIELD_ORIENTATION		15
#define	FIELD_SAMPLESPERPIXEL		16
#define	FIELD_ROWSPERSTRIP		17
#define	FIELD_MINSAMPLEVALUE		18
#define	FIELD_MAXSAMPLEVALUE		19
#define	FIELD_PLANARCONFIG		20
#define	FIELD_PAGENAME			21
#define	FIELD_RESOLUTIONUNIT		22
#define	FIELD_PAGENUMBER		23
#define	FIELD_STRIPBYTECOUNTS		24
#define	FIELD_STRIPOFFSETS		25
#define	FIELD_COLORMAP			26
#define FIELD_ARTIST			27
#define FIELD_DATETIME			28
#define FIELD_HOSTCOMPUTER		29
#define FIELD_SOFTWARE			30
#define	FIELD_EXTRASAMPLES		31
#define FIELD_SAMPLEFORMAT		32
#define	FIELD_SMINSAMPLEVALUE		33
#define	FIELD_SMAXSAMPLEVALUE		34
#define FIELD_IMAGEDEPTH		35
#define FIELD_TILEDEPTH			36
#define	FIELD_HALFTONEHINTS		37
#define FIELD_YCBCRCOEFFICIENTS		38
#define FIELD_YCBCRSUBSAMPLING		39
#define FIELD_YCBCRPOSITIONING		40
#define	FIELD_REFBLACKWHITE		41
#define	FIELD_WHITEPOINT		42
#define	FIELD_PRIMARYCHROMAS		43
#define	FIELD_TRANSFERFUNCTION		44
#define	FIELD_INKSET			45
#define	FIELD_INKNAMES			46
#define	FIELD_DOTRANGE			47
#define	FIELD_TARGETPRINTER		48
#define	FIELD_SUBIFD			49
#define	FIELD_NUMBEROFINKS		50
#define FIELD_ICCPROFILE		51
#define FIELD_PHOTOSHOP			52
#define FIELD_RICHTIFFIPTC		53
#define FIELD_STONITS			54
/* Begin PIXAR */
#define	FIELD_IMAGEFULLWIDTH		55
#define	FIELD_IMAGEFULLLENGTH		56
#define FIELD_TEXTUREFORMAT		57
#define FIELD_WRAPMODES			58
#define FIELD_FOVCOT			59
#define FIELD_MATRIX_WORLDTOSCREEN	60
#define FIELD_MATRIX_WORLDTOCAMERA	61
/* end of support for well-known tags; codec-private tags follow */
#define	FIELD_CODEC			62	/* base of codec-private tags */
/*
 * Pseudo-tags don't normally need field bits since they
 * are not written to an output file (by definition).
 * The library also has express logic to always query a
 * codec for a pseudo-tag so allocating a field bit for
 * one is a waste.   If codec wants to promote the notion
 * of a pseudo-tag being ``set'' or ``unset'' then it can
 * do using internal state flags without polluting the
 * field bit space defined for real tags.
 */
#define	FIELD_PSEUDO			0

#define	FIELD_LAST			(32*FIELD_SETLONGS-1)

#define	TIFFExtractData(tif, type, v) \
    ((uint32) ((tif)->tif_header.tiff_magic == TIFF_BIGENDIAN ? \
        ((v) >> (tif)->tif_typeshift[type]) & (tif)->tif_typemask[type] : \
	(v) & (tif)->tif_typemask[type]))
#define	TIFFInsertData(tif, type, v) \
    ((uint32) ((tif)->tif_header.tiff_magic == TIFF_BIGENDIAN ? \
        ((v) & (tif)->tif_typemask[type]) << (tif)->tif_typeshift[type] : \
	(v) & (tif)->tif_typemask[type]))

typedef	struct {
	ttag_t	field_tag;		/* field's tag */
	short	field_readcount;	/* read count/TIFF_VARIABLE/TIFF_SPP */
	short	field_writecount;	/* write count/TIFF_VARIABLE */
	TIFFDataType field_type;	/* type of associated data */
	u_short	field_bit;		/* bit in fieldsset bit vector */
	u_char	field_oktochange;	/* if true, can change while writing */
	u_char	field_passcount;	/* if true, pass dir count on set */
	char	*field_name;		/* ASCII name */
} TIFFFieldInfo;

#define	TIFF_ANY	TIFF_NOTYPE	/* for field descriptor searching */
#define	TIFF_VARIABLE	-1		/* marker for variable length tags */
#define	TIFF_SPP	-2		/* marker for SamplesPerPixel tags */
#define	TIFF_VARIABLE2	-3		/* marker for uint32 var-length tags */

extern	const int tiffDataWidth[];	/* table of tag datatype widths */

#define BITn(n)				(((u_long)1L)<<((n)&0x1f)) 
#define BITFIELDn(tif, n)		((tif)->tif_dir.td_fieldsset[(n)/32]) 
#define TIFFFieldSet(tif, field)	(BITFIELDn(tif, field) & BITn(field)) 
#define TIFFSetFieldBit(tif, field)	(BITFIELDn(tif, field) |= BITn(field))
#define TIFFClrFieldBit(tif, field)	(BITFIELDn(tif, field) &= ~BITn(field))

#define	FieldSet(fields, f)		(fields[(f)/32] & BITn(f))
#define	ResetFieldBit(fields, f)	(fields[(f)/32] &= ~BITn(f))

#if defined(__cplusplus)
extern "C" {
#endif
extern	void _TIFFSetupFieldInfo(TIFF*);
extern	void _TIFFMergeFieldInfo(TIFF*, const TIFFFieldInfo[], int);
extern	void _TIFFPrintFieldInfo(TIFF*, FILE*);
extern	const TIFFFieldInfo* _TIFFFindFieldInfo(TIFF*, ttag_t, TIFFDataType);
extern	const TIFFFieldInfo* _TIFFFieldWithTag(TIFF*, ttag_t);
extern	TIFFDataType _TIFFSampleToTagType(TIFF*);
#if defined(__cplusplus)
}
#endif
#endif /* _TIFFDIR_ */

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marb

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