示例#1
0
	int		Tiff::GetField(uint32_t tag, ...)
	{
		va_list ap;
		int status;

		va_start(ap, tag);
		status = TIFFVGetField(reinterpret_cast<TIFF *>(m_tiff),tag,ap);
		va_end(ap);
		return (status);
	}
示例#2
0
/*
 * Like TIFFGetField, but return any default
 * value if the tag is not present in the directory.
 *
 * NB:	We use the value in the directory, rather than
 *	explcit values so that defaults exist only one
 *	place in the library -- in TIFFDefaultDirectory.
 */
int
TIFFVGetFieldDefaulted(TIFF* tif, uint32 tag, va_list ap)
{
    TIFFDirectory *td = &tif->tif_dir;

    if (TIFFVGetField(tif, tag, ap))
        return (1);
    switch (tag) {
    case TIFFTAG_SUBFILETYPE:
        *va_arg(ap, uint32 *) = td->td_subfiletype;
        return (1);
    case TIFFTAG_BITSPERSAMPLE:
        *va_arg(ap, uint16 *) = td->td_bitspersample;
        return (1);
    case TIFFTAG_THRESHHOLDING:
        *va_arg(ap, uint16 *) = td->td_threshholding;
        return (1);
    case TIFFTAG_FILLORDER:
        *va_arg(ap, uint16 *) = td->td_fillorder;
        return (1);
    case TIFFTAG_ORIENTATION:
        *va_arg(ap, uint16 *) = td->td_orientation;
        return (1);
    case TIFFTAG_SAMPLESPERPIXEL:
        *va_arg(ap, uint16 *) = td->td_samplesperpixel;
        return (1);
    case TIFFTAG_ROWSPERSTRIP:
        *va_arg(ap, uint32 *) = td->td_rowsperstrip;
        return (1);
    case TIFFTAG_MINSAMPLEVALUE:
        *va_arg(ap, uint16 *) = td->td_minsamplevalue;
        return (1);
    case TIFFTAG_MAXSAMPLEVALUE:
        *va_arg(ap, uint16 *) = td->td_maxsamplevalue;
        return (1);
    case TIFFTAG_PLANARCONFIG:
        *va_arg(ap, uint16 *) = td->td_planarconfig;
        return (1);
    case TIFFTAG_RESOLUTIONUNIT:
        *va_arg(ap, uint16 *) = td->td_resolutionunit;
        return (1);
    case TIFFTAG_PREDICTOR:
    {
        TIFFPredictorState* sp = (TIFFPredictorState*) tif->tif_data;
        *va_arg(ap, uint16*) = (uint16) sp->predictor;
        return 1;
    }
    case TIFFTAG_DOTRANGE:
        *va_arg(ap, uint16 *) = 0;
        *va_arg(ap, uint16 *) = (1<<td->td_bitspersample)-1;
        return (1);
    case TIFFTAG_INKSET:
        *va_arg(ap, uint16 *) = INKSET_CMYK;
        return 1;
    case TIFFTAG_NUMBEROFINKS:
        *va_arg(ap, uint16 *) = 4;
        return (1);
    case TIFFTAG_EXTRASAMPLES:
        *va_arg(ap, uint16 *) = td->td_extrasamples;
        *va_arg(ap, uint16 **) = td->td_sampleinfo;
        return (1);
    case TIFFTAG_MATTEING:
        *va_arg(ap, uint16 *) =
            (td->td_extrasamples == 1 &&
             td->td_sampleinfo[0] == EXTRASAMPLE_ASSOCALPHA);
        return (1);
    case TIFFTAG_TILEDEPTH:
        *va_arg(ap, uint32 *) = td->td_tiledepth;
        return (1);
    case TIFFTAG_DATATYPE:
        *va_arg(ap, uint16 *) = td->td_sampleformat-1;
        return (1);
    case TIFFTAG_SAMPLEFORMAT:
        *va_arg(ap, uint16 *) = td->td_sampleformat;
        return(1);
    case TIFFTAG_IMAGEDEPTH:
        *va_arg(ap, uint32 *) = td->td_imagedepth;
        return (1);
    case TIFFTAG_YCBCRCOEFFICIENTS:
    {
        /* defaults are from CCIR Recommendation 601-1 */
        static float ycbcrcoeffs[] = { 0.299f, 0.587f, 0.114f };
        *va_arg(ap, float **) = ycbcrcoeffs;
        return 1;
    }
    case TIFFTAG_YCBCRSUBSAMPLING:
        *va_arg(ap, uint16 *) = td->td_ycbcrsubsampling[0];
        *va_arg(ap, uint16 *) = td->td_ycbcrsubsampling[1];
        return (1);
    case TIFFTAG_YCBCRPOSITIONING:
        *va_arg(ap, uint16 *) = td->td_ycbcrpositioning;
        return (1);
    case TIFFTAG_WHITEPOINT:
    {
        static float whitepoint[2];

        /* TIFF 6.0 specification tells that it is no default
           value for the WhitePoint, but AdobePhotoshop TIFF
           Technical Note tells that it should be CIE D50. */
        whitepoint[0] =	D50_X0 / (D50_X0 + D50_Y0 + D50_Z0);
        whitepoint[1] =	D50_Y0 / (D50_X0 + D50_Y0 + D50_Z0);
        *va_arg(ap, float **) = whitepoint;
        return 1;
    }
    case TIFFTAG_TRANSFERFUNCTION:
        if (!td->td_transferfunction[0] &&
                !TIFFDefaultTransferFunction(td)) {
            TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "No space for \"TransferFunction\" tag");
            return (0);
        }
        *va_arg(ap, uint16 **) = td->td_transferfunction[0];
        if (td->td_samplesperpixel - td->td_extrasamples > 1) {
            *va_arg(ap, uint16 **) = td->td_transferfunction[1];
            *va_arg(ap, uint16 **) = td->td_transferfunction[2];
        }
        return (1);
    case TIFFTAG_REFERENCEBLACKWHITE:
        if (!td->td_refblackwhite && !TIFFDefaultRefBlackWhite(td))
            return (0);
        *va_arg(ap, float **) = td->td_refblackwhite;
        return (1);
    }
    return 0;
}
示例#3
0
文件: tif_aux.c 项目: hkaiser/TRiAS
/*
 * Like TIFFGetField, but return any default
 * value if the tag is not present in the directory.
 *
 * NB:	We use the value in the directory, rather than
 *	explcit values so that defaults exist only one
 *	place in the library -- in TIFFDefaultDirectory.
 */
int
TIFFVGetFieldDefaulted(TIFF* tif, ttag_t tag, va_list ap)
{
	TIFFDirectory *td = &tif->tif_dir;

	if (TIFFVGetField(tif, tag, ap))
		return (1);
	switch (tag) {
	case TIFFTAG_SUBFILETYPE:
		*va_arg(ap, uint32 *) = td->td_subfiletype;
		return (1);
	case TIFFTAG_BITSPERSAMPLE:
		*va_arg(ap, uint16 *) = td->td_bitspersample;
		return (1);
	case TIFFTAG_THRESHHOLDING:
		*va_arg(ap, uint16 *) = td->td_threshholding;
		return (1);
	case TIFFTAG_FILLORDER:
		*va_arg(ap, uint16 *) = td->td_fillorder;
		return (1);
	case TIFFTAG_ORIENTATION:
		*va_arg(ap, uint16 *) = td->td_orientation;
		return (1);
	case TIFFTAG_SAMPLESPERPIXEL:
		*va_arg(ap, uint16 *) = td->td_samplesperpixel;
		return (1);
	case TIFFTAG_ROWSPERSTRIP:
		*va_arg(ap, uint32 *) = td->td_rowsperstrip;
		return (1);
	case TIFFTAG_MINSAMPLEVALUE:
		*va_arg(ap, uint16 *) = td->td_minsamplevalue;
		return (1);
	case TIFFTAG_MAXSAMPLEVALUE:
		*va_arg(ap, uint16 *) = td->td_maxsamplevalue;
		return (1);
	case TIFFTAG_PLANARCONFIG:
		*va_arg(ap, uint16 *) = td->td_planarconfig;
		return (1);
	case TIFFTAG_RESOLUTIONUNIT:
		*va_arg(ap, uint16 *) = td->td_resolutionunit;
		return (1);
#ifdef CMYK_SUPPORT
	case TIFFTAG_DOTRANGE:
		*va_arg(ap, uint16 *) = 0;
		*va_arg(ap, uint16 *) = (1<<td->td_bitspersample)-1;
		return (1);
	case TIFFTAG_INKSET:
		*va_arg(ap, uint16 *) = td->td_inkset;
		return (1);
	case TIFFTAG_NUMBEROFINKS:
		*va_arg(ap, uint16 *) = td->td_ninks;
		return (1);
#endif
	case TIFFTAG_EXTRASAMPLES:
		*va_arg(ap, uint16 *) = td->td_extrasamples;
		*va_arg(ap, uint16 **) = td->td_sampleinfo;
		return (1);
	case TIFFTAG_MATTEING:
		*va_arg(ap, uint16 *) =
		    (td->td_extrasamples == 1 &&
		     td->td_sampleinfo[0] == EXTRASAMPLE_ASSOCALPHA);
		return (1);
	case TIFFTAG_TILEDEPTH:
		*va_arg(ap, uint32 *) = td->td_tiledepth;
		return (1);
	case TIFFTAG_DATATYPE:
		*va_arg(ap, uint16 *) = td->td_sampleformat-1;
		return (1);
	case TIFFTAG_IMAGEDEPTH:
		*va_arg(ap, uint32 *) = td->td_imagedepth;
		return (1);
#ifdef YCBCR_SUPPORT
	case TIFFTAG_YCBCRCOEFFICIENTS:
		if (!td->td_ycbcrcoeffs) {
			td->td_ycbcrcoeffs = (float *)
			    _TIFFmalloc(3*sizeof (float));
			/* defaults are from CCIR Recommendation 601-1 */
			td->td_ycbcrcoeffs[0] = 0.299f;
			td->td_ycbcrcoeffs[1] = 0.587f;
			td->td_ycbcrcoeffs[2] = 0.114f;
		}
		*va_arg(ap, float **) = td->td_ycbcrcoeffs;
		return (1);
	case TIFFTAG_YCBCRSUBSAMPLING:
		*va_arg(ap, uint16 *) = td->td_ycbcrsubsampling[0];
		*va_arg(ap, uint16 *) = td->td_ycbcrsubsampling[1];
		return (1);
	case TIFFTAG_YCBCRPOSITIONING:
		*va_arg(ap, uint16 *) = td->td_ycbcrpositioning;
		return (1);
#endif
#ifdef COLORIMETRY_SUPPORT
	case TIFFTAG_TRANSFERFUNCTION:
		if (!td->td_transferfunction[0])
			TIFFDefaultTransferFunction(td);
		*va_arg(ap, uint16 **) = td->td_transferfunction[0];
		if (td->td_samplesperpixel - td->td_extrasamples > 1) {
			*va_arg(ap, uint16 **) = td->td_transferfunction[1];
			*va_arg(ap, uint16 **) = td->td_transferfunction[2];
		}
		return (1);
	case TIFFTAG_REFERENCEBLACKWHITE:
		if (!td->td_refblackwhite)
			TIFFDefaultRefBlackWhite(td);
		*va_arg(ap, float **) = td->td_refblackwhite;
		return (1);
#endif
	}
	return (0);
}