sandy
/
PL281
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1 Commit
1 Branch
0 Tags
162 GiB
Branch: master
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from 'master'
${ noResults }
PL281/Q0/external/dng_sdk/source/dng_ifd.cpp

4267 lines
72 KiB
Raw Permalink Blame History

/*****************************************************************************/
// Copyright 2006-2012 Adobe Systems Incorporated
// All Rights Reserved.
//
// NOTICE: Adobe permits you to use, modify, and distribute this file in
// accordance with the terms of the Adobe license agreement accompanying it.
/*****************************************************************************/
/* $Id: //mondo/dng_sdk_1_4/dng_sdk/source/dng_ifd.cpp#3 $ */
/* $DateTime: 2012/06/05 11:05:39 $ */
/* $Change: 833352 $ */
/* $Author: tknoll $ */
/*****************************************************************************/
#include "dng_ifd.h"
#include "dng_exceptions.h"
#include "dng_flags.h"
#include "dng_globals.h"
#include "dng_ifd.h"
#include "dng_types.h"
#include "dng_parse_utils.h"
#include "dng_read_image.h"
#include "dng_stream.h"
#include "dng_tag_codes.h"
#include "dng_tag_types.h"
#include "dng_tag_values.h"
#include "dng_utils.h"
/*****************************************************************************/
dng_preview_info::dng_preview_info ()
: fIsPrimary (true)
, fApplicationName ()
, fApplicationVersion ()
, fSettingsName ()
, fSettingsDigest ()
, fColorSpace (previewColorSpace_MaxEnum)
, fDateTime ()
, fRawToPreviewGain (1.0)
, fCacheVersion (0)
{
}
/*****************************************************************************/
dng_preview_info::~dng_preview_info ()
{
}
/*****************************************************************************/
dng_ifd::dng_ifd ()
: fUsesNewSubFileType (false)
, fNewSubFileType (0)
, fImageWidth (0)
, fImageLength (0)
, fCompression (ccUncompressed)
, fPredictor (cpNullPredictor)
, fPhotometricInterpretation (0xFFFFFFFF)
, fFillOrder (1)
, fOrientation (0)
, fOrientationType (0)
, fOrientationOffset (kDNGStreamInvalidOffset)
, fOrientationBigEndian (false)
, fSamplesPerPixel (1)
, fPlanarConfiguration (pcInterleaved)
, fXResolution (0.0)
, fYResolution (0.0)
, fResolutionUnit (0)
, fUsesStrips (false)
, fUsesTiles (false)
, fTileWidth (0)
, fTileLength (0)
, fTileOffsetsType (0)
, fTileOffsetsCount (0)
, fTileOffsetsOffset (0)
, fTileByteCountsType (0)
, fTileByteCountsCount (0)
, fTileByteCountsOffset (0)
, fSubIFDsCount (0)
, fSubIFDsOffset (0)
, fExtraSamplesCount (0)
, fJPEGTablesCount (0)
, fJPEGTablesOffset (0)
, fJPEGInterchangeFormat (0)
, fJPEGInterchangeFormatLength (0)
, fYCbCrCoefficientR (0.0)
, fYCbCrCoefficientG (0.0)
, fYCbCrCoefficientB (0.0)
, fYCbCrSubSampleH (0)
, fYCbCrSubSampleV (0)
, fYCbCrPositioning (0)
, fCFARepeatPatternRows (0)
, fCFARepeatPatternCols (0)
, fCFALayout (1)
, fLinearizationTableType (0)
, fLinearizationTableCount (0)
, fLinearizationTableOffset (0)
, fBlackLevelRepeatRows (1)
, fBlackLevelRepeatCols (1)
, fBlackLevelDeltaHType (0)
, fBlackLevelDeltaHCount (0)
, fBlackLevelDeltaHOffset (0)
, fBlackLevelDeltaVType (0)
, fBlackLevelDeltaVCount (0)
, fBlackLevelDeltaVOffset (0)
, fDefaultScaleH (1, 1)
, fDefaultScaleV (1, 1)
, fBestQualityScale (1, 1)
, fDefaultCropOriginH (0, 1)
, fDefaultCropOriginV (0, 1)
, fDefaultCropSizeH ()
, fDefaultCropSizeV ()
, fDefaultUserCropT (0, 1)
, fDefaultUserCropL (0, 1)
, fDefaultUserCropB (1, 1)
, fDefaultUserCropR (1, 1)
, fBayerGreenSplit (0)
, fChromaBlurRadius ()
, fAntiAliasStrength (1, 1)
, fActiveArea ()
, fMaskedAreaCount (0)
, fRowInterleaveFactor (1)
, fSubTileBlockRows (1)
, fSubTileBlockCols (1)
, fPreviewInfo ()
, fOpcodeList1Count (0)
, fOpcodeList1Offset (0)
, fOpcodeList2Count (0)
, fOpcodeList2Offset (0)
, fOpcodeList3Count (0)
, fOpcodeList3Offset (0)
, fLosslessJPEGBug16 (false)
, fSampleBitShift (0)
, fThisIFD (0)
, fNextIFD (0)
, fCompressionQuality (-1)
, fPatchFirstJPEGByte (false)
{
uint32 j;
uint32 k;
uint32 n;
for (j = 0; j < kMaxSamplesPerPixel; j++)
{
fBitsPerSample [j] = 0;
}
for (j = 0; j < kMaxTileInfo; j++)
{
fTileOffset [j] = 0;
fTileByteCount [j] = 0;
}
for (j = 0; j < kMaxSamplesPerPixel; j++)
{
fExtraSamples [j] = esUnspecified;
}
for (j = 0; j < kMaxSamplesPerPixel; j++)
{
fSampleFormat [j] = sfUnsignedInteger;
}
for (j = 0; j < 6; j++)
{
fReferenceBlackWhite [j] = 0.0;
}
for (j = 0; j < kMaxCFAPattern; j++)
for (k = 0; k < kMaxCFAPattern; k++)
{
fCFAPattern [j] [k] = 255;
}
for (j = 0; j < kMaxColorPlanes; j++)
{
fCFAPlaneColor [j] = (uint8) (j < 3 ? j : 255);
}
for (j = 0; j < kMaxBlackPattern; j++)
for (k = 0; k < kMaxBlackPattern; k++)
for (n = 0; n < kMaxSamplesPerPixel; n++)
{
fBlackLevel [j] [k] [n] = 0.0;
}
for (j = 0; j < kMaxSamplesPerPixel; j++)
{
fWhiteLevel [j] = -1.0; // Don't know real default yet.
}
}
/*****************************************************************************/
dng_ifd::~dng_ifd ()
{
}
/*****************************************************************************/
// Parses tags that should only appear in IFDs that contain images.
bool dng_ifd::ParseTag (dng_stream &stream,
uint32 parentCode,
uint32 tagCode,
uint32 tagType,
uint32 tagCount,
uint64 tagOffset)
{
uint32 j;
uint32 k;
uint32 n;
switch (tagCode)
{
case tcNewSubFileType:
{
CheckTagType (parentCode, tagCode, tagType, ttLong);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fUsesNewSubFileType = true;
fNewSubFileType = stream.TagValue_uint32 (tagType);
fPreviewInfo.fIsPrimary = (fNewSubFileType == sfPreviewImage);
#if qDNGValidate
if (gVerbose)
{
printf ("NewSubFileType: %s\n",
LookupNewSubFileType (fNewSubFileType));
}
#endif
break;
}
case tcImageWidth:
{
CheckTagType (parentCode, tagCode, tagType, ttShort, ttLong);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fImageWidth = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("ImageWidth: %u\n", (unsigned) fImageWidth);
}
#endif
break;
}
case tcImageLength:
{
CheckTagType (parentCode, tagCode, tagType, ttShort, ttLong);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fImageLength = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("ImageLength: %u\n", (unsigned) fImageLength);
}
#endif
break;
}
case tcBitsPerSample:
{
CheckTagType (parentCode, tagCode, tagType, ttShort);
CheckTagCount (parentCode, tagCode, tagCount, 1, 0x0FFFF);
#if qDNGValidate
if (gVerbose)
{
printf ("BitsPerSample:");
}
#endif
bool extrasMatch = true;
for (j = 0; j < tagCount; j++)
{
uint32 x = stream.TagValue_uint32 (tagType);
const uint32 maxBitsPerSample = 32;
if (j < kMaxSamplesPerPixel)
{
if (x > maxBitsPerSample)
{
ThrowBadFormat ("BitsPerSample out of bounds.");
}
fBitsPerSample [j] = x;
}
else if (x != fBitsPerSample [kMaxSamplesPerPixel - 1])
{
extrasMatch = false;
}
#if qDNGValidate
if (gVerbose)
{
printf (" %u", (unsigned) x);
}
#endif
}
#if qDNGValidate
if (gVerbose)
{
printf ("\n");
}
#endif
if (!extrasMatch)
{
#if qDNGValidate
ReportError ("BitsPerSample not constant");
#endif
ThrowBadFormat ();
}
break;
}
case tcCompression:
{
CheckTagType (parentCode, tagCode, tagType, ttShort);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fCompression = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("Compression: %s\n",
LookupCompression (fCompression));
}
#endif
// Correct a common TIFF writer mistake.
if (fCompression == 0)
{
#if qDNGValidate
{
char message [256];
sprintf (message,
"%s has invalid zero compression code",
LookupParentCode (parentCode));
ReportWarning (message);
}
#endif
fCompression = ccUncompressed;
}
break;
}
case tcPhotometricInterpretation:
{
CheckTagType (parentCode, tagCode, tagType, ttShort);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fPhotometricInterpretation = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("PhotometricInterpretation: %s\n",
LookupPhotometricInterpretation (fPhotometricInterpretation));
}
#endif
break;
}
case tcFillOrder:
{
CheckTagType (parentCode, tagCode, tagType, ttShort);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fFillOrder = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("FillOrder: %u\n", (unsigned) fFillOrder);
}
#endif
break;
}
case tcStripOffsets:
{
CheckTagType (parentCode, tagCode, tagType, ttShort, ttLong);
fUsesStrips = true;
fTileOffsetsType = tagType;
fTileOffsetsCount = tagCount;
fTileOffsetsOffset = tagOffset;
if (tagCount <= kMaxTileInfo)
{
for (j = 0; j < tagCount; j++)
{
fTileOffset [j] = stream.TagValue_uint32 (tagType);
}
}
#if qDNGValidate
if (gVerbose)
{
stream.SetReadPosition (tagOffset);
DumpTagValues (stream,
"Offset",
parentCode,
tagCode,
tagType,
tagCount);
}
#endif
break;
}
case tcOrientation:
{
CheckTagType (parentCode, tagCode, tagType, ttShort);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fOrientationType = tagType;
fOrientationOffset = stream.PositionInOriginalFile ();
fOrientationBigEndian = stream.BigEndian ();
fOrientation = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("Orientation: %s\n",
LookupOrientation (fOrientation));
}
#endif
break;
}
case tcSamplesPerPixel:
{
CheckTagType (parentCode, tagCode, tagType, ttShort);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fSamplesPerPixel = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("SamplesPerPixel: %u\n", (unsigned) fSamplesPerPixel);
}
#endif
break;
}
case tcRowsPerStrip:
{
CheckTagType (parentCode, tagCode, tagType, ttShort, ttLong);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fUsesStrips = true;
fTileLength = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("RowsPerStrip: %u\n", (unsigned) fTileLength);
}
#endif
break;
}
case tcStripByteCounts:
{
CheckTagType (parentCode, tagCode, tagType, ttShort, ttLong);
fUsesStrips = true;
fTileByteCountsType = tagType;
fTileByteCountsCount = tagCount;
fTileByteCountsOffset = tagOffset;
if (tagCount <= kMaxTileInfo)
{
for (j = 0; j < tagCount; j++)
{
fTileByteCount [j] = stream.TagValue_uint32 (tagType);
}
}
#if qDNGValidate
if (gVerbose)
{
stream.SetReadPosition (tagOffset);
DumpTagValues (stream,
"Count",
parentCode,
tagCode,
tagType,
tagCount);
}
#endif
break;
}
case tcXResolution:
{
CheckTagType (parentCode, tagCode, tagType, ttRational);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fXResolution = stream.TagValue_real64 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("XResolution: %0.2f\n", fXResolution);
}
#endif
break;
}
case tcYResolution:
{
CheckTagType (parentCode, tagCode, tagType, ttRational);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fYResolution = stream.TagValue_real64 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("YResolution: %0.2f\n", fYResolution);
}
#endif
break;
}
case tcPlanarConfiguration:
{
CheckTagType (parentCode, tagCode, tagType, ttShort);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fPlanarConfiguration = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("PlanarConfiguration: %u\n", (unsigned) fPlanarConfiguration);
}
#endif
break;
}
case tcResolutionUnit:
{
CheckTagType (parentCode, tagCode, tagType, ttShort);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fResolutionUnit = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("ResolutionUnit: %s\n",
LookupResolutionUnit (fResolutionUnit));
}
#endif
break;
}
case tcPredictor:
{
CheckTagType (parentCode, tagCode, tagType, ttShort);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fPredictor = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("Predictor: %s\n",
LookupPredictor (fPredictor));
}
#endif
break;
}
case tcTileWidth:
{
CheckTagType (parentCode, tagCode, tagType, ttShort, ttLong);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fUsesTiles = true;
fTileWidth = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("TileWidth: %u\n", (unsigned) fTileWidth);
}
#endif
break;
}
case tcTileLength:
{
CheckTagType (parentCode, tagCode, tagType, ttShort, ttLong);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fUsesTiles = true;
fTileLength = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("TileLength: %u\n", (unsigned) fTileLength);
}
#endif
break;
}
case tcTileOffsets:
{
CheckTagType (parentCode, tagCode, tagType, ttLong);
fUsesTiles = true;
fTileOffsetsType = tagType;
fTileOffsetsCount = tagCount;
fTileOffsetsOffset = tagOffset;
if (tagCount <= kMaxTileInfo)
{
for (j = 0; j < tagCount; j++)
{
fTileOffset [j] = stream.TagValue_uint32 (tagType);
}
}
#if qDNGValidate
if (gVerbose)
{
stream.SetReadPosition (tagOffset);
DumpTagValues (stream,
"Offset",
parentCode,
tagCode,
tagType,
tagCount);
}
#endif
break;
}
case tcTileByteCounts:
{
CheckTagType (parentCode, tagCode, tagType, ttShort, ttLong);
fUsesTiles = true;
fTileByteCountsType = tagType;
fTileByteCountsCount = tagCount;
fTileByteCountsOffset = tagOffset;
if (tagCount <= kMaxTileInfo)
{
for (j = 0; j < tagCount; j++)
{
fTileByteCount [j] = stream.TagValue_uint32 (tagType);
}
}
#if qDNGValidate
if (gVerbose)
{
stream.SetReadPosition (tagOffset);
DumpTagValues (stream,
"Count",
parentCode,
tagCode,
tagType,
tagCount);
}
#endif
break;
}
case tcSubIFDs:
{
CheckTagType (parentCode, tagCode, tagType, ttLong, ttIFD);
fSubIFDsCount = tagCount;
fSubIFDsOffset = tagOffset;
#if qDNGValidate
if (gVerbose)
{
DumpTagValues (stream,
"IFD",
parentCode,
tagCode,
ttLong,
tagCount);
}
#endif
break;
}
case tcExtraSamples:
{
CheckTagType (parentCode, tagCode, tagType, ttShort);
CheckTagCount (parentCode, tagCode, tagCount, 1, fSamplesPerPixel);
#if qDNGValidate
if (gVerbose)
{
printf ("ExtraSamples:");
}
#endif
fExtraSamplesCount = tagCount;
for (j = 0; j < tagCount; j++)
{
uint32 x = stream.TagValue_uint32 (tagType);
if (j < kMaxSamplesPerPixel)
{
fExtraSamples [j] = x;
}
#if qDNGValidate
if (gVerbose)
{
printf (" %u", (unsigned) x);
}
#endif
}
#if qDNGValidate
if (gVerbose)
{
printf ("\n");
}
#endif
break;
}
case tcSampleFormat:
{
CheckTagType (parentCode, tagCode, tagType, ttShort);
CheckTagCount (parentCode, tagCode, tagCount, fSamplesPerPixel);
#if qDNGValidate
if (gVerbose)
{
printf ("SampleFormat:");
}
#endif
bool extrasMatch = true;
for (j = 0; j < tagCount; j++)
{
uint32 x = stream.TagValue_uint32 (tagType);
if (j < kMaxSamplesPerPixel)
{
fSampleFormat [j] = x;
}
else if (x != fSampleFormat [kMaxSamplesPerPixel - 1])
{
extrasMatch = false;
}
#if qDNGValidate
if (gVerbose)
{
printf (" %s", LookupSampleFormat (x));
}
#endif
}
#if qDNGValidate
if (gVerbose)
{
printf ("\n");
}
#endif
if (!extrasMatch)
{
#if qDNGValidate
ReportError ("SampleFormat not constant");
#endif
ThrowBadFormat ();
}
break;
}
case tcJPEGTables:
{
CheckTagType (parentCode, tagCode, tagType, ttUndefined);
fJPEGTablesCount = tagCount;
fJPEGTablesOffset = tagOffset;
#if qDNGValidate
if (gVerbose)
{
printf ("JPEGTables: count = %u, offset = %u\n",
(unsigned) fJPEGTablesCount,
(unsigned) fJPEGTablesOffset);
}
#endif
break;
}
case tcJPEGInterchangeFormat:
{
CheckTagType (parentCode, tagCode, tagType, ttLong);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fJPEGInterchangeFormat = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("JPEGInterchangeFormat: %u\n",
(unsigned) fJPEGInterchangeFormat);
}
#endif
break;
}
case tcJPEGInterchangeFormatLength:
{
CheckTagType (parentCode, tagCode, tagType, ttLong);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fJPEGInterchangeFormatLength = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("JPEGInterchangeFormatLength: %u\n",
(unsigned) fJPEGInterchangeFormatLength);
}
#endif
break;
}
case tcYCbCrCoefficients:
{
CheckTagType (parentCode, tagCode, tagType, ttRational);
if (!CheckTagCount (parentCode, tagCode, tagCount, 3))
{
return false;
}
fYCbCrCoefficientR = stream.TagValue_real64 (tagType);
fYCbCrCoefficientG = stream.TagValue_real64 (tagType);
fYCbCrCoefficientB = stream.TagValue_real64 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("YCbCrCoefficients: R = %0.3f, G = %0.3f, B = %0.3f\n",
fYCbCrCoefficientR,
fYCbCrCoefficientG,
fYCbCrCoefficientB);
}
#endif
break;
}
case tcYCbCrSubSampling:
{
CheckTagType (parentCode, tagCode, tagType, ttShort);
if (!CheckTagCount (parentCode, tagCode, tagCount, 2))
{
return false;
}
fYCbCrSubSampleH = stream.TagValue_uint32 (tagType);
fYCbCrSubSampleV = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("YCbCrSubSampling: H = %u, V = %u\n",
(unsigned) fYCbCrSubSampleH,
(unsigned) fYCbCrSubSampleV);
}
#endif
break;
}
case tcYCbCrPositioning:
{
CheckTagType (parentCode, tagCode, tagType, ttShort);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fYCbCrPositioning = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("YCbCrPositioning: %u\n",
(unsigned) fYCbCrPositioning);
}
#endif
break;
}
case tcReferenceBlackWhite:
{
CheckTagType (parentCode, tagCode, tagType, ttRational);
if (!CheckTagCount (parentCode, tagCode, tagCount, 6))
{
return false;
}
for (j = 0; j < 6; j++)
{
fReferenceBlackWhite [j] = stream.TagValue_real64 (tagType);
}
#if qDNGValidate
if (gVerbose)
{
printf ("ReferenceBlackWhite: %0.1f %0.1f %0.1f %0.1f %0.1f %0.1f\n",
fReferenceBlackWhite [0],
fReferenceBlackWhite [1],
fReferenceBlackWhite [2],
fReferenceBlackWhite [3],
fReferenceBlackWhite [4],
fReferenceBlackWhite [5]);
}
#endif
break;
}
case tcCFARepeatPatternDim:
{
CheckCFA (parentCode, tagCode, fPhotometricInterpretation);
CheckTagType (parentCode, tagCode, tagType, ttShort);
if (!CheckTagCount (parentCode, tagCode, tagCount, 2))
{
return false;
}
fCFARepeatPatternRows = stream.TagValue_uint32 (tagType);
fCFARepeatPatternCols = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("CFARepeatPatternDim: Rows = %u, Cols = %u\n",
(unsigned) fCFARepeatPatternRows,
(unsigned) fCFARepeatPatternCols);
}
#endif
break;
}
case tcCFAPattern:
{
CheckCFA (parentCode, tagCode, fPhotometricInterpretation);
if (!CheckTagType (parentCode, tagCode, tagType, ttByte))
{
return false;
}
if (!CheckTagCount (parentCode, tagCode, tagCount,
SafeUint32Mult(fCFARepeatPatternRows, fCFARepeatPatternCols)))
{
return false;
}
if (fCFARepeatPatternRows < 1 || fCFARepeatPatternRows > kMaxCFAPattern ||
fCFARepeatPatternCols < 1 || fCFARepeatPatternCols > kMaxCFAPattern)
{
return false;
}
// Note that the Exif spec stores this array in a different
// scan order than the TIFF-EP spec.
for (j = 0; j < fCFARepeatPatternRows; j++)
for (k = 0; k < fCFARepeatPatternCols; k++)
{
fCFAPattern [j] [k] = stream.Get_uint8 ();
}
#if qDNGValidate
if (gVerbose)
{
printf ("CFAPattern:\n");
for (j = 0; j < fCFARepeatPatternRows; j++)
{
int32 spaces = 4;
for (k = 0; k < fCFARepeatPatternCols; k++)
{
while (spaces-- > 0)
{
printf (" ");
}
const char *name = LookupCFAColor (fCFAPattern [j] [k]);
spaces = 9 - (int32) strlen (name);
printf ("%s", name);
}
printf ("\n");
}
}
#endif
break;
}
case tcCFAPlaneColor:
{
CheckCFA (parentCode, tagCode, fPhotometricInterpretation);
if (!CheckTagType (parentCode, tagCode, tagType, ttByte))
{
return false;
}
if (!CheckTagCount (parentCode, tagCode, tagCount, 3, kMaxColorPlanes))
{
return false;
}
for (j = 0; j < kMaxColorPlanes; j++)
{
if (j < tagCount)
fCFAPlaneColor [j] = stream.Get_uint8 ();
else
fCFAPlaneColor [j] = 255;
}
#if qDNGValidate
if (gVerbose)
{
printf ("CFAPlaneColor:");
for (j = 0; j < tagCount; j++)
{
printf (" %s", LookupCFAColor (fCFAPlaneColor [j]));
}
printf ("\n");
}
#endif
break;
}
case tcCFALayout:
{
CheckCFA (parentCode, tagCode, fPhotometricInterpretation);
CheckTagType (parentCode, tagCode, tagType, ttShort);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fCFALayout = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("CFALayout: %s\n",
LookupCFALayout (fCFALayout));
}
#endif
break;
}
case tcLinearizationTable:
{
CheckRawIFD (parentCode, tagCode, fPhotometricInterpretation);
CheckTagType (parentCode, tagCode, tagType, ttShort);
fLinearizationTableType = tagType;
fLinearizationTableCount = tagCount;
fLinearizationTableOffset = tagOffset;
#if qDNGValidate
if (gVerbose)
{
DumpTagValues (stream,
"Table",
parentCode,
tagCode,
tagType,
tagCount);
}
#endif
break;
}
case tcBlackLevelRepeatDim:
{
CheckRawIFD (parentCode, tagCode, fPhotometricInterpretation);
CheckTagType (parentCode, tagCode, tagType, ttShort);
if (!CheckTagCount (parentCode, tagCode, tagCount, 2))
{
return false;
}
fBlackLevelRepeatRows = stream.TagValue_uint32 (tagType);
fBlackLevelRepeatCols = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("BlackLevelRepeatDim: Rows = %u, Cols = %u\n",
(unsigned) fBlackLevelRepeatRows,
(unsigned) fBlackLevelRepeatCols);
}
#endif
break;
}
case tcBlackLevel:
{
CheckRawIFD (parentCode, tagCode, fPhotometricInterpretation);
CheckTagType (parentCode, tagCode, tagType, ttShort, ttLong, ttRational);
if (!CheckTagCount (parentCode, tagCode, tagCount, SafeUint32Mult(fBlackLevelRepeatRows,
fBlackLevelRepeatCols,
fSamplesPerPixel)))
{
return false;
}
if (fBlackLevelRepeatRows < 1 || fBlackLevelRepeatRows > kMaxBlackPattern ||
fBlackLevelRepeatCols < 1 || fBlackLevelRepeatCols > kMaxBlackPattern ||
fSamplesPerPixel < 1 || fSamplesPerPixel > kMaxSamplesPerPixel)
{
return false;
}
for (j = 0; j < fBlackLevelRepeatRows; j++)
for (k = 0; k < fBlackLevelRepeatCols; k++)
for (n = 0; n < fSamplesPerPixel; n++)
{
fBlackLevel [j] [k] [n] = stream.TagValue_real64 (tagType);
}
#if qDNGValidate
if (gVerbose)
{
printf ("BlackLevel:");
if (fBlackLevelRepeatRows == 1 &&
fBlackLevelRepeatCols == 1)
{
for (n = 0; n < fSamplesPerPixel; n++)
{
printf (" %0.2f", fBlackLevel [0] [0] [n]);
}
printf ("\n");
}
else
{
printf ("\n");
for (n = 0; n < fSamplesPerPixel; n++)
{
if (fSamplesPerPixel > 1)
{
printf (" Sample: %u\n", (unsigned) n);
}
for (j = 0; j < fBlackLevelRepeatRows; j++)
{
printf (" ");
for (k = 0; k < fBlackLevelRepeatCols; k++)
{
printf (" %8.2f", fBlackLevel [j] [k] [n]);
}
printf ("\n");
}
}
}
}
#endif
break;
}
case tcBlackLevelDeltaH:
{
CheckRawIFD (parentCode, tagCode, fPhotometricInterpretation);
CheckTagType (parentCode, tagCode, tagType, ttSRational);
fBlackLevelDeltaHType = tagType;
fBlackLevelDeltaHCount = tagCount;
fBlackLevelDeltaHOffset = tagOffset;
#if qDNGValidate
if (gVerbose)
{
DumpTagValues (stream,
"Delta",
parentCode,
tagCode,
tagType,
tagCount);
}
#endif
break;
}
case tcBlackLevelDeltaV:
{
CheckRawIFD (parentCode, tagCode, fPhotometricInterpretation);
CheckTagType (parentCode, tagCode, tagType, ttSRational);
fBlackLevelDeltaVType = tagType;
fBlackLevelDeltaVCount = tagCount;
fBlackLevelDeltaVOffset = tagOffset;
#if qDNGValidate
if (gVerbose)
{
DumpTagValues (stream,
"Delta",
parentCode,
tagCode,
tagType,
tagCount);
}
#endif
break;
}
case tcWhiteLevel:
{
CheckRawIFD (parentCode, tagCode, fPhotometricInterpretation);
CheckTagType (parentCode, tagCode, tagType, ttShort, ttLong);
if (!CheckTagCount (parentCode, tagCode, tagCount, fSamplesPerPixel))
return false;
for (j = 0; j < tagCount && j < kMaxSamplesPerPixel; j++)
{
fWhiteLevel [j] = stream.TagValue_real64 (tagType);
}
#if qDNGValidate
if (gVerbose)
{
printf ("WhiteLevel:");
for (j = 0; j < tagCount && j < kMaxSamplesPerPixel; j++)
{
printf (" %0.0f", fWhiteLevel [j]);
}
printf ("\n");
}
#endif
break;
}
case tcDefaultScale:
{
CheckMainIFD (parentCode, tagCode, fNewSubFileType);
CheckTagType (parentCode, tagCode, tagType, ttRational);
if (!CheckTagCount (parentCode, tagCode, tagCount, 2))
return false;
fDefaultScaleH = stream.TagValue_urational (tagType);
fDefaultScaleV = stream.TagValue_urational (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("DefaultScale: H = %0.4f V = %0.4f\n",
fDefaultScaleH.As_real64 (),
fDefaultScaleV.As_real64 ());
}
#endif
break;
}
case tcDefaultCropOrigin:
{
CheckMainIFD (parentCode, tagCode, fNewSubFileType);
CheckTagType (parentCode, tagCode, tagType, ttShort, ttLong, ttRational);
if (!CheckTagCount (parentCode, tagCode, tagCount, 2))
return false;
fDefaultCropOriginH = stream.TagValue_urational (tagType);
fDefaultCropOriginV = stream.TagValue_urational (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("DefaultCropOrigin: H = %0.2f V = %0.2f\n",
fDefaultCropOriginH.As_real64 (),
fDefaultCropOriginV.As_real64 ());
}
#endif
break;
}
case tcDefaultCropSize:
{
CheckMainIFD (parentCode, tagCode, fNewSubFileType);
CheckTagType (parentCode, tagCode, tagType, ttShort, ttLong, ttRational);
if (!CheckTagCount (parentCode, tagCode, tagCount, 2))
return false;
fDefaultCropSizeH = stream.TagValue_urational (tagType);
fDefaultCropSizeV = stream.TagValue_urational (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("DefaultCropSize: H = %0.2f V = %0.2f\n",
fDefaultCropSizeH.As_real64 (),
fDefaultCropSizeV.As_real64 ());
}
#endif
break;
}
case tcDefaultUserCrop:
{
CheckMainIFD (parentCode, tagCode, fNewSubFileType);
CheckTagType (parentCode, tagCode, tagType, ttRational);
if (!CheckTagCount (parentCode, tagCode, tagCount, 4))
return false;
fDefaultUserCropT = stream.TagValue_urational (tagType);
fDefaultUserCropL = stream.TagValue_urational (tagType);
fDefaultUserCropB = stream.TagValue_urational (tagType);
fDefaultUserCropR = stream.TagValue_urational (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("DefaultUserCrop: T = %0.2lf L = %0.2lf B = %0.2lf R = %0.2lf\n",
(double) fDefaultUserCropT.As_real64 (),
(double) fDefaultUserCropL.As_real64 (),
(double) fDefaultUserCropB.As_real64 (),
(double) fDefaultUserCropR.As_real64 ());
}
#endif // qDNGValidate
break;
}
case tcBayerGreenSplit:
{
CheckCFA (parentCode, tagCode, fPhotometricInterpretation);
CheckTagType (parentCode, tagCode, tagType, ttLong);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fBayerGreenSplit = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("BayerGreenSplit: %u\n", (unsigned) fBayerGreenSplit);
}
#endif
break;
}
case tcChromaBlurRadius:
{
CheckMainIFD (parentCode, tagCode, fNewSubFileType);
CheckTagType (parentCode, tagCode, tagType, ttRational);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fChromaBlurRadius = stream.TagValue_urational (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("ChromaBlurRadius: %0.2f\n",
fChromaBlurRadius.As_real64 ());
}
#endif
break;
}
case tcAntiAliasStrength:
{
CheckMainIFD (parentCode, tagCode, fNewSubFileType);
CheckTagType (parentCode, tagCode, tagType, ttRational);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fAntiAliasStrength = stream.TagValue_urational (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("AntiAliasStrength: %0.2f\n",
fAntiAliasStrength.As_real64 ());
}
#endif
break;
}
case tcBestQualityScale:
{
CheckMainIFD (parentCode, tagCode, fNewSubFileType);
CheckTagType (parentCode, tagCode, tagType, ttRational);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fBestQualityScale = stream.TagValue_urational (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("BestQualityScale: %0.4f\n",
fBestQualityScale.As_real64 ());
}
#endif
break;
}
case tcActiveArea:
{
CheckMainIFD (parentCode, tagCode, fNewSubFileType);
CheckTagType (parentCode, tagCode, tagType, ttShort, ttLong);
if (!CheckTagCount (parentCode, tagCode, tagCount, 4))
return false;
fActiveArea.t = stream.TagValue_int32 (tagType);
fActiveArea.l = stream.TagValue_int32 (tagType);
fActiveArea.b = stream.TagValue_int32 (tagType);
fActiveArea.r = stream.TagValue_int32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("ActiveArea: T = %d L = %d B = %d R = %d\n",
(int) fActiveArea.t,
(int) fActiveArea.l,
(int) fActiveArea.b,
(int) fActiveArea.r);
}
#endif
break;
}
case tcMaskedAreas:
{
CheckMainIFD (parentCode, tagCode, fNewSubFileType);
CheckTagType (parentCode, tagCode, tagType, ttShort, ttLong);
uint32 rect_count = tagCount / 4;
if (!CheckTagCount (parentCode, tagCode, tagCount, rect_count * 4))
return false;
fMaskedAreaCount = rect_count;
if (fMaskedAreaCount > kMaxMaskedAreas)
fMaskedAreaCount = kMaxMaskedAreas;
for (j = 0; j < fMaskedAreaCount; j++)
{
fMaskedArea [j].t = stream.TagValue_int32 (tagType);
fMaskedArea [j].l = stream.TagValue_int32 (tagType);
fMaskedArea [j].b = stream.TagValue_int32 (tagType);
fMaskedArea [j].r = stream.TagValue_int32 (tagType);
}
#if qDNGValidate
if (gVerbose)
{
printf ("MaskedAreas: %u\n", (unsigned) fMaskedAreaCount);
for (j = 0; j < fMaskedAreaCount; j++)
{
printf (" Area [%u]: T = %d L = %d B = %d R = %d\n",
(unsigned) j,
(int) fMaskedArea [j].t,
(int) fMaskedArea [j].l,
(int) fMaskedArea [j].b,
(int) fMaskedArea [j].r);
}
}
#endif
break;
}
case tcPreviewApplicationName:
{
CheckTagType (parentCode, tagCode, tagType, ttAscii, ttByte);
ParseStringTag (stream,
parentCode,
tagCode,
tagCount,
fPreviewInfo.fApplicationName,
false);
#if qDNGValidate
if (gVerbose)
{
printf ("PreviewApplicationName: ");
DumpString (fPreviewInfo.fApplicationName);
printf ("\n");
}
#endif
break;
}
case tcPreviewApplicationVersion:
{
CheckTagType (parentCode, tagCode, tagType, ttAscii, ttByte);
ParseStringTag (stream,
parentCode,
tagCode,
tagCount,
fPreviewInfo.fApplicationVersion,
false);
#if qDNGValidate
if (gVerbose)
{
printf ("PreviewApplicationVersion: ");
DumpString (fPreviewInfo.fApplicationVersion);
printf ("\n");
}
#endif
break;
}
case tcPreviewSettingsName:
{
CheckTagType (parentCode, tagCode, tagType, ttAscii, ttByte);
ParseStringTag (stream,
parentCode,
tagCode,
tagCount,
fPreviewInfo.fSettingsName,
false);
#if qDNGValidate
if (gVerbose)
{
printf ("PreviewSettingsName: ");
DumpString (fPreviewInfo.fSettingsName);
printf ("\n");
}
#endif
break;
}
case tcPreviewSettingsDigest:
{
if (!CheckTagType (parentCode, tagCode, tagType, ttByte))
return false;
if (!CheckTagCount (parentCode, tagCode, tagCount, 16))
return false;
stream.Get (fPreviewInfo.fSettingsDigest.data, 16);
#if qDNGValidate
if (gVerbose)
{
printf ("PreviewSettingsDigest: ");
DumpFingerprint (fPreviewInfo.fSettingsDigest);
printf ("\n");
}
#endif
break;
}
case tcPreviewColorSpace:
{
CheckTagType (parentCode, tagCode, tagType, ttLong);
CheckTagCount (parentCode, tagCode, tagCount, 1);
fPreviewInfo.fColorSpace = (PreviewColorSpaceEnum)
stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("PreviewColorSpace: %s\n",
LookupPreviewColorSpace ((uint32) fPreviewInfo.fColorSpace));
}
#endif
break;
}
case tcPreviewDateTime:
{
CheckTagType (parentCode, tagCode, tagType, ttAscii);
ParseStringTag (stream,
parentCode,
tagCode,
tagCount,
fPreviewInfo.fDateTime,
false);
#if qDNGValidate
if (gVerbose)
{
printf ("PreviewDateTime: ");
DumpString (fPreviewInfo.fDateTime);
printf ("\n");
}
#endif
break;
}
case tcRowInterleaveFactor:
{
CheckTagType (parentCode, tagCode, tagType, ttShort, ttLong);
if (!CheckTagCount (parentCode, tagCode, tagCount, 1))
return false;
fRowInterleaveFactor = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("RowInterleaveFactor: %u\n",
(unsigned) fRowInterleaveFactor);
}
#endif
break;
}
case tcSubTileBlockSize:
{
CheckTagType (parentCode, tagCode, tagType, ttShort, ttLong);
if (!CheckTagCount (parentCode, tagCode, tagCount, 2))
return false;
fSubTileBlockRows = stream.TagValue_uint32 (tagType);
fSubTileBlockCols = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("SubTileBlockSize: rows = %u, cols = %u\n",
(unsigned) fSubTileBlockRows,
(unsigned) fSubTileBlockCols);
}
#endif
break;
}
case tcOpcodeList1:
{
CheckRawIFD (parentCode, tagCode, fPhotometricInterpretation);
CheckTagType (parentCode, tagCode, tagType, ttUndefined);
fOpcodeList1Count = tagCount;
fOpcodeList1Offset = tagOffset;
#if qDNGValidate
if (gVerbose)
{
printf ("OpcodeList1: count = %u, offset = %u\n",
(unsigned) fOpcodeList1Count,
(unsigned) fOpcodeList1Offset);
}
#endif
break;
}
case tcOpcodeList2:
{
CheckRawIFD (parentCode, tagCode, fPhotometricInterpretation);
CheckTagType (parentCode, tagCode, tagType, ttUndefined);
fOpcodeList2Count = tagCount;
fOpcodeList2Offset = tagOffset;
#if qDNGValidate
if (gVerbose)
{
printf ("OpcodeList2: count = %u, offset = %u\n",
(unsigned) fOpcodeList2Count,
(unsigned) fOpcodeList2Offset);
}
#endif
break;
}
case tcOpcodeList3:
{
CheckRawIFD (parentCode, tagCode, fPhotometricInterpretation);
CheckTagType (parentCode, tagCode, tagType, ttUndefined);
fOpcodeList3Count = tagCount;
fOpcodeList3Offset = tagOffset;
#if qDNGValidate
if (gVerbose)
{
printf ("OpcodeList3: count = %u, offset = %u\n",
(unsigned) fOpcodeList3Count,
(unsigned) fOpcodeList3Offset);
}
#endif
break;
}
case tcRawToPreviewGain:
{
#if qDNGValidate
if (fNewSubFileType != sfPreviewImage)
{
char message [256];
sprintf (message,
"%s %s is not allowed IFDs with NewSubFileType != PreviewImage",
LookupParentCode (parentCode),
LookupTagCode (parentCode, tagCode));
ReportWarning (message);
}
#endif
CheckRawIFD (parentCode, tagCode, fPhotometricInterpretation);
CheckTagType (parentCode, tagCode, tagType, ttDouble);
if (!CheckTagCount (parentCode, tagCode, tagCount, 1))
return false;
fPreviewInfo.fRawToPreviewGain = stream.TagValue_real64 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("RawToPreviewGain = %f\n",
fPreviewInfo.fRawToPreviewGain);
}
#endif
break;
}
case tcCacheVersion:
{
#if qDNGValidate
if (fNewSubFileType != sfPreviewImage)
{
char message [256];
sprintf (message,
"%s %s is not allowed IFDs with NewSubFileType != PreviewImage",
LookupParentCode (parentCode),
LookupTagCode (parentCode, tagCode));
ReportWarning (message);
}
#endif
CheckRawIFD (parentCode, tagCode, fPhotometricInterpretation);
CheckTagType (parentCode, tagCode, tagType, ttLong);
if (!CheckTagCount (parentCode, tagCode, tagCount, 1))
return false;
fPreviewInfo.fCacheVersion = stream.TagValue_uint32 (tagType);
#if qDNGValidate
if (gVerbose)
{
printf ("CacheVersion = 0x%x\n",
(unsigned) fPreviewInfo.fCacheVersion);
}
#endif
break;
}
default:
{
return false;
}
}
return true;
}
/*****************************************************************************/
void dng_ifd::PostParse ()
{
uint32 j;
uint32 k;
// There is only one PlanarConfiguration for single sample imaages.
if (fSamplesPerPixel == 1)
{
fPlanarConfiguration = pcInterleaved;
}
// Default tile size.
if (fTileWidth == 0)
{
fTileWidth = fImageWidth;
}
if (fTileLength == 0)
{
fTileLength = fImageLength;
}
// Default ActiveArea.
dng_rect imageArea (0, 0, fImageLength, fImageWidth);
if (fActiveArea.IsZero ())
{
fActiveArea = imageArea;
}
// Default crop size.
if (fDefaultCropSizeH.d == 0)
{
fDefaultCropSizeH = dng_urational (fActiveArea.W (), 1);
}
if (fDefaultCropSizeV.d == 0)
{
fDefaultCropSizeV = dng_urational (fActiveArea.H (), 1);
}
// Default white level.
uint32 defaultWhite = (fSampleFormat [0] == sfFloatingPoint) ?
1 :
(uint32) ((((uint64) 1) << fBitsPerSample [0]) - 1);
for (j = 0; j < kMaxSamplesPerPixel; j++)
{
if (fWhiteLevel [j] < 0.0)
{
fWhiteLevel [j] = (real64) defaultWhite;
}
}
// Check AntiAliasStrength.
if (fAntiAliasStrength.As_real64 () < 0.0 ||
fAntiAliasStrength.As_real64 () > 1.0)
{
#if qDNGValidate
ReportWarning ("Invalid AntiAliasStrength");
#endif
fAntiAliasStrength = dng_urational (1, 1);
}
// Check MaskedAreas.
for (j = 0; j < fMaskedAreaCount; j++)
{
const dng_rect &r = fMaskedArea [j];
if (r.IsEmpty () || ((r & imageArea) != r))
{
#if qDNGValidate
ReportWarning ("Invalid MaskedArea");
#endif
fMaskedAreaCount = 0;
break;
}
if ((r & fActiveArea).NotEmpty ())
{
#if qDNGValidate
ReportWarning ("MaskedArea overlaps ActiveArea");
#endif
fMaskedAreaCount = 0;
break;
}
for (k = 0; k < j; k++)
{
if ((r & fMaskedArea [k]).NotEmpty ())
{
#if qDNGValidate
ReportWarning ("MaskedAreas overlap each other");
#endif
fMaskedAreaCount = 0;
break;
}
}
}
}
/*****************************************************************************/
bool dng_ifd::IsValidCFA (dng_shared &shared,
uint32 parentCode)
{
uint32 j;
uint32 k;
uint32 n;
#if !qDNGValidate
(void) parentCode; // Unused
#endif
if (fCFARepeatPatternRows < 1 || fCFARepeatPatternRows > kMaxCFAPattern ||
fCFARepeatPatternCols < 1 || fCFARepeatPatternCols > kMaxCFAPattern)
{
#if qDNGValidate
ReportError ("Missing or invalid CFAPatternRepeatDim",
LookupParentCode (parentCode));
#endif
return false;
}
uint32 count [kMaxColorPlanes];
for (n = 0; n < shared.fCameraProfile.fColorPlanes; n++)
{
count [n] = 0;
}
for (j = 0; j < fCFARepeatPatternRows; j++)
{
for (k = 0; k < fCFARepeatPatternCols; k++)
{
bool found = false;
for (n = 0; n < shared.fCameraProfile.fColorPlanes; n++)
{
if (fCFAPattern [j] [k] == fCFAPlaneColor [n])
{
found = true;
count [n] ++;
break;
}
}
if (!found)
{
#if qDNGValidate
ReportError ("CFAPattern contains colors not included in the CFAPlaneColor tag",
LookupParentCode (parentCode));
#endif
return false;
}
}
}
for (n = 0; n < shared.fCameraProfile.fColorPlanes; n++)
{
if (count [n] == 0)
{
#if qDNGValidate
ReportError ("CFAPattern does not contain all the colors in the CFAPlaneColor tag",
LookupParentCode (parentCode));
#endif
return false;
}
}
if (fCFALayout < 1 || fCFALayout > 9)
{
#if qDNGValidate
ReportError ("Invalid CFALayout",
LookupParentCode (parentCode));
#endif
return false;
}
return true;
}
/*****************************************************************************/
bool dng_ifd::IsValidDNG (dng_shared &shared,
uint32 parentCode)
{
uint32 j;
bool isFloatingPoint = (fSampleFormat [0] == sfFloatingPoint);
dng_rect imageArea (0, 0, fImageLength, fImageWidth);
uint32 defaultWhite = isFloatingPoint ?
1 :
(uint32) ((((uint64) 1) << fBitsPerSample [0]) - 1);
bool isMonochrome = (shared.fCameraProfile.fColorPlanes == 1);
bool isColor = !isMonochrome;
bool isMainIFD = (fNewSubFileType == sfMainImage);
// Check NewSubFileType.
if (!fUsesNewSubFileType)
{
#if qDNGValidate
ReportError ("Missing NewSubFileType",
LookupParentCode (parentCode));
#endif
return false;
}
if (fNewSubFileType != sfMainImage &&
fNewSubFileType != sfPreviewImage &&
fNewSubFileType != sfTransparencyMask &&
fNewSubFileType != sfPreviewMask &&
fNewSubFileType != sfAltPreviewImage)
{
#if qDNGValidate
ReportError ("Unexpected NewSubFileType",
LookupParentCode (parentCode));
#endif
return false;
}
// Check ImageWidth and ImageLength.
if (fImageWidth < 1)
{
#if qDNGValidate
ReportError ("Missing or invalid ImageWidth",
LookupParentCode (parentCode));
#endif
return false;
}
if (fImageLength < 1)
{
#if qDNGValidate
ReportError ("Missing or invalid ImageLength",
LookupParentCode (parentCode));
#endif
return false;
}
if (fImageWidth > kMaxImageSide ||
fImageLength > kMaxImageSide)
{
#if qDNGValidate
ReportWarning ("Image size is larger than supported");
#endif
return false;
}
// Check PhotometricInterpretation.
if (fNewSubFileType == sfTransparencyMask ||
fNewSubFileType == sfPreviewMask)
{
if (fPhotometricInterpretation != piTransparencyMask)
{
#if qDNGValidate
ReportError ("NewSubFileType requires PhotometricInterpretation = TransparencyMask",
LookupParentCode (parentCode));
#endif
return false;
}
}
else
{
switch (fPhotometricInterpretation)
{
case piBlackIsZero:
case piRGB:
case piYCbCr:
{
if (isMainIFD)
{
#if qDNGValidate
ReportError ("PhotometricInterpretation requires NewSubFileType = 1",
LookupParentCode (parentCode));
#endif
return false;
}
break;
}
case piCFA:
{
if (!isMainIFD)
{
#if qDNGValidate
ReportError ("PhotometricInterpretation requires NewSubFileType = 0",
LookupParentCode (parentCode));
#endif
return false;
}
break;
}
case piLinearRaw:
break;
default:
{
#if qDNGValidate
ReportError ("Missing or invalid PhotometricInterpretation",
LookupParentCode (parentCode));
#endif
return false;
}
}
}
switch (fPhotometricInterpretation)
{
case piBlackIsZero:
{
// Allow black in white previews even in color images since the
// raw processing software may be converting to grayscale.
if (isColor && isMainIFD)
{
#if qDNGValidate
ReportError ("PhotometricInterpretation forbids use of ColorMatrix1 tag",
LookupParentCode (parentCode));
#endif
return false;
}
break;
}
case piRGB:
case piYCbCr:
{
// Allow color previews even in monochrome DNG files, since the
// raw procesing software may be adding color effects.
break;
}
case piCFA:
{
if (isMonochrome)
{
#if qDNGValidate
ReportError ("PhotometricInterpretation requires use of ColorMatrix1 tag",
LookupParentCode (parentCode));
#endif
return false;
}
break;
}
}
if (isFloatingPoint)
{
if (fPhotometricInterpretation != piCFA &&
fPhotometricInterpretation != piLinearRaw &&
fPhotometricInterpretation != piTransparencyMask)
{
#if qDNGValidate
ReportError ("Floating point data requires PhotometricInterpretation CFA or LinearRaw or TransparencyMask",
LookupParentCode (parentCode));
#endif
return false;
}
}
// Check SamplesPerPixel and BitsPerSample.
uint32 minSamplesPerPixel = 1;
uint32 maxSamplesPerPixel = 1;
uint32 minBitsPerSample = 8;
uint32 maxBitsPerSample = 16;
switch (fPhotometricInterpretation)
{
case piBlackIsZero:
break;
case piRGB:
case piYCbCr:
{
minSamplesPerPixel = 3;
maxSamplesPerPixel = 3;
break;
}
case piCFA:
{
maxSamplesPerPixel = kMaxSamplesPerPixel;
maxBitsPerSample = 32;
break;
}
case piLinearRaw:
{
minSamplesPerPixel = shared.fCameraProfile.fColorPlanes;
maxSamplesPerPixel = shared.fCameraProfile.fColorPlanes;
maxBitsPerSample = 32;
break;
}
case piTransparencyMask:
{
minBitsPerSample = 8;
maxBitsPerSample = 16;
break;
}
}
if (isFloatingPoint)
{
minBitsPerSample = 16;
maxBitsPerSample = 32;
}
if (fSamplesPerPixel < minSamplesPerPixel ||
fSamplesPerPixel > maxSamplesPerPixel)
{
#if qDNGValidate
ReportError ("Missing or invalid SamplesPerPixel",
LookupParentCode (parentCode));
#endif
return false;
}
for (j = 0; j < kMaxSamplesPerPixel; j++)
{
if (j < fSamplesPerPixel)
{
if (fBitsPerSample [j] < minBitsPerSample ||
fBitsPerSample [j] > maxBitsPerSample)
{
#if qDNGValidate
ReportError ("Missing or invalid BitsPerSample",
LookupParentCode (parentCode));
#endif
return false;
}
if (isFloatingPoint &&
fBitsPerSample [j] != 16 &&
fBitsPerSample [j] != 24 &&
fBitsPerSample [j] != 32)
{
#if qDNGValidate
ReportError ("Invalid BitsPerSample for floating point",
LookupParentCode (parentCode));
#endif
return false;
}
if (minBitsPerSample == 8 &&
maxBitsPerSample == 16 &&
fBitsPerSample [j] != 8 &&
fBitsPerSample [j] != 16)
{
#if qDNGValidate
ReportError ("Rendered previews and integer masks require 8 or 16 bits per sample",
LookupParentCode (parentCode));
#endif
return false;
}
if (j > 0 && fBitsPerSample [j] != fBitsPerSample [0])
{
#if qDNGValidate
ReportError ("BitsPerSample not equal for all samples",
LookupParentCode (parentCode));
#endif
return false;
}
}
else
{
if (fBitsPerSample [j] != 0)
{
#if qDNGValidate
ReportError ("Too many values specified in BitsPerSample",
LookupParentCode (parentCode));
#endif
return false;
}
}
}
// Check Compression.
switch (fCompression)
{
case ccUncompressed:
break;
case ccJPEG:
{
if (fPhotometricInterpretation == piRGB)
{
#if qDNGValidate
ReportError ("JPEG previews should use PhotometricInterpretation = YCbYb",
LookupParentCode (parentCode));
#endif
return false;
}
if (fBitsPerSample [0] > 16)
{
#if qDNGValidate
ReportError ("JPEG compression is limited to 16 bits/sample",
LookupParentCode (parentCode));
#endif
return false;
}
break;
}
case ccLossyJPEG:
{
if (fPhotometricInterpretation != piLinearRaw)
{
#if qDNGValidate
ReportError ("Lossy JPEG compression code requires PhotometricInterpretation = LinearRaw",
LookupParentCode (parentCode));
#endif
return false;
}
if (fBitsPerSample [0] != 8)
{
#if qDNGValidate
ReportError ("Lossy JPEG compression is limited to 8 bits/sample",
LookupParentCode (parentCode));
#endif
return false;
}
break;
}
case ccDeflate:
{
if (!isFloatingPoint &&
fBitsPerSample [0] != 32 &&
fPhotometricInterpretation != piTransparencyMask)
{
#if qDNGValidate
ReportError ("ZIP compression is limited to floating point and 32-bit integer and transparency masks",
LookupParentCode (parentCode));
#endif
}
break;
}
default:
{
#if qDNGValidate
ReportError ("Unsupported Compression",
LookupParentCode (parentCode));
#endif
return false;
}
}
// Check Predictor.
if (isFloatingPoint && fCompression == ccDeflate &&
(fPredictor == cpFloatingPoint ||
fPredictor == cpFloatingPointX2 ||
fPredictor == cpFloatingPointX4))
{
// These combinations are supported.
}
else if (!isFloatingPoint && fCompression == ccDeflate &&
(fPredictor == cpHorizontalDifference ||
fPredictor == cpHorizontalDifferenceX2 ||
fPredictor == cpHorizontalDifferenceX4))
{
// These combinations are supported.
}
else if (fPredictor != cpNullPredictor)
{
#if qDNGValidate
ReportError ("Unsupported Predictor",
LookupParentCode (parentCode));
#endif
return false;
}
// Check FillOrder.
if (fFillOrder != 1)
{
#if qDNGValidate
ReportError ("Unsupported FillOrder",
LookupParentCode (parentCode));
#endif
return false;
}
// Check PlanarConfiguration.
if (fPlanarConfiguration != pcInterleaved)
{
#if qDNGValidate
ReportError ("Unsupported PlanarConfiguration",
LookupParentCode (parentCode));
#endif
return false;
}
// Check ExtraSamples.
if (fExtraSamplesCount != 0)
{
#if qDNGValidate
ReportError ("Unsupported ExtraSamples",
LookupParentCode (parentCode));
#endif
return false;
}
// Check SampleFormat.
for (j = 0; j < fSamplesPerPixel; j++)
{
if (fSampleFormat [j] != (isFloatingPoint ? sfFloatingPoint : sfUnsignedInteger))
{
#if qDNGValidate
ReportError ("Unsupported SampleFormat",
LookupParentCode (parentCode));
#endif
return false;
}
}
// Check Orientation.
if (fOrientation > 9)
{
#if qDNGValidate
ReportError ("Unknown Orientation",
LookupParentCode (parentCode));
#endif
return false;
}
#if qDNGValidate
if (fOrientation != 0 && parentCode != 0)
{
ReportWarning ("Unexpected Orientation tag",
LookupParentCode (parentCode));
}
if (fOrientation == 0 && parentCode == 0)
{
ReportWarning ("Missing Orientation tag",
LookupParentCode (parentCode));
}
#endif
// Check Strips vs. Tiles.
if (!fUsesStrips && !fUsesTiles)
{
#if qDNGValidate
ReportError ("IFD uses neither strips nor tiles",
LookupParentCode (parentCode));
#endif
return false;
}
if (fUsesStrips && fUsesTiles)
{
#if qDNGValidate
ReportError ("IFD uses both strips and tiles",
LookupParentCode (parentCode));
#endif
return false;
}
// Check tile info.
uint32 tilesWide = SafeUint32DivideUp(fImageWidth, fTileWidth);
uint32 tilesHigh = SafeUint32DivideUp(fImageLength, fTileLength);
uint32 tileCount = tilesWide * tilesHigh;
if (fTileOffsetsCount != tileCount)
{
#if qDNGValidate
ReportError ("Missing or invalid Strip/TileOffsets",
LookupParentCode (parentCode));
#endif
return false;
}
if (fTileByteCountsCount != tileCount)
{
#if qDNGValidate
ReportError ("Missing or invalid Strip/TileByteCounts",
LookupParentCode (parentCode));
#endif
return false;
}
// Check CFA pattern.
if (fPhotometricInterpretation == piCFA)
{
if (!IsValidCFA (shared, parentCode))
{
return false;
}
}
// Check ActiveArea.
if (((fActiveArea & imageArea) != fActiveArea) || fActiveArea.IsEmpty ())
{
#if qDNGValidate
ReportError ("Invalid ActiveArea",
LookupParentCode (parentCode));
#endif
return false;
}
if (fActiveArea != imageArea)
{
if (shared.fDNGBackwardVersion < dngVersion_1_1_0_0)
{
#if qDNGValidate
ReportError ("Non-default ActiveArea tag not allowed in this DNG version",
LookupParentCode (parentCode));
#endif
return false;
}
}
// Check LinearizationTable.
if (fLinearizationTableCount)
{
if (fLinearizationTableType != ttShort)
{
#if qDNGValidate
ReportError ("Invalidate LinearizationTable type",
LookupParentCode (parentCode));
#endif
return false;
}
if (fLinearizationTableCount < 2 ||
fLinearizationTableCount > 65536)
{
#if qDNGValidate
ReportError ("Invalidate LinearizationTable count",
LookupParentCode (parentCode));
#endif
return false;
}
if (isFloatingPoint || fBitsPerSample [0] > 16)
{
#if qDNGValidate
ReportError ("Linearization table not allowed for this data type",
LookupParentCode (parentCode));
#endif
return false;
}
}
// Check BlackLevelRepeatDim.
if (fBlackLevelRepeatRows < 1 || fBlackLevelRepeatRows > kMaxBlackPattern ||
fBlackLevelRepeatCols < 1 || fBlackLevelRepeatCols > kMaxBlackPattern)
{
#if qDNGValidate
ReportError ("Invalid BlackLevelRepeatDim",
LookupParentCode (parentCode));
#endif
return false;
}
// Check BlackLevelDeltaH.
if (fBlackLevelDeltaHCount != 0 &&
fBlackLevelDeltaHCount != fActiveArea.W ())
{
#if qDNGValidate
ReportError ("Invalid BlackLevelDeltaH count",
LookupParentCode (parentCode));
#endif
return false;
}
// Check BlackLevelDeltaV.
if (fBlackLevelDeltaVCount != 0 &&
fBlackLevelDeltaVCount != fActiveArea.H ())
{
#if qDNGValidate
ReportError ("Invalid BlackLevelDeltaV count",
LookupParentCode (parentCode));
#endif
return false;
}
// Check WhiteLevel.
real64 maxWhite = fLinearizationTableCount ? 65535.0
: (real64) defaultWhite;
for (j = 0; j < fSamplesPerPixel; j++)
{
if (fWhiteLevel [j] < 1.0 || (fWhiteLevel [j] > maxWhite && !isFloatingPoint))
{
#if qDNGValidate
ReportError ("Invalid WhiteLevel",
LookupParentCode (parentCode));
#endif
return false;
}
}
// Check BlackLevel.
for (j = 0; j < kMaxBlackPattern; j++)
{
for (uint32 k = 0; k < kMaxBlackPattern; k++)
{
for (uint32 s = 0; s < kMaxSamplesPerPixel; s++)
{
const real64 black = fBlackLevel [j][k][s];
if (black >= fWhiteLevel [s])
{
#if qDNGValidate
ReportError ("Invalid BlackLevel",
LookupParentCode (parentCode));
#endif
return false;
}
}
}
}
// Check DefaultScale.
if (fDefaultScaleH.As_real64 () <= 0.0 ||
fDefaultScaleV.As_real64 () <= 0.0)
{
#if qDNGValidate
ReportError ("Invalid DefaultScale");
#endif
return false;
}
// Check BestQualityScale.
if (fBestQualityScale.As_real64 () < 1.0)
{
#if qDNGValidate
ReportError ("Invalid BestQualityScale");
#endif
return false;
}
// Check DefaultCropOrigin.
if (fDefaultCropOriginH.As_real64 () < 0.0 ||
fDefaultCropOriginV.As_real64 () < 0.0 ||
fDefaultCropOriginH.As_real64 () >= (real64) fActiveArea.W () ||
fDefaultCropOriginV.As_real64 () >= (real64) fActiveArea.H ())
{
#if qDNGValidate
ReportError ("Invalid DefaultCropOrigin");
#endif
return false;
}
// Check DefaultCropSize.
if (fDefaultCropSizeH.As_real64 () <= 0.0 ||
fDefaultCropSizeV.As_real64 () <= 0.0 ||
fDefaultCropSizeH.As_real64 () > (real64) fActiveArea.W () ||
fDefaultCropSizeV.As_real64 () > (real64) fActiveArea.H ())
{
#if qDNGValidate
ReportError ("Invalid DefaultCropSize");
#endif
return false;
}
// Check DefaultCrop area.
if (fDefaultCropOriginH.As_real64 () +
fDefaultCropSizeH .As_real64 () > (real64) fActiveArea.W () ||
fDefaultCropOriginV.As_real64 () +
fDefaultCropSizeV .As_real64 () > (real64) fActiveArea.H ())
{
#if qDNGValidate
ReportError ("Default crop extends outside ActiveArea");
#endif
return false;
}
// Check DefaultUserCrop.
if (fDefaultUserCropT.As_real64 () < 0.0 ||
fDefaultUserCropL.As_real64 () < 0.0 ||
fDefaultUserCropB.As_real64 () > 1.0 ||
fDefaultUserCropR.As_real64 () > 1.0 ||
fDefaultUserCropT.As_real64 () >= fDefaultUserCropB.As_real64 () ||
fDefaultUserCropL.As_real64 () >= fDefaultUserCropR.As_real64 ())
{
#if qDNGValidate
ReportError ("Invalid DefaultUserCrop");
#endif // qDNGValidate
return false;
}
// The default crop and default user crop tags are not allowed for the
// non-main image. If they are there, at least require that they be NOPs.
if (!isMainIFD)
{
if (Round_int32 (fDefaultCropOriginH.As_real64 ()) != 0 ||
Round_int32 (fDefaultCropOriginV.As_real64 ()) != 0)
{
#if qDNGValidate
ReportError ("non-default DefaultCropOrigin on non-main image");
#endif
return false;
}
if (Round_int32 (fDefaultCropSizeH.As_real64 ()) != (int32) fImageWidth ||
Round_int32 (fDefaultCropSizeV.As_real64 ()) != (int32) fImageLength)
{
#if qDNGValidate
ReportError ("non-default DefaultCropSize on non-main image");
#endif
return false;
}
if (fDefaultUserCropT.As_real64 () != 0.0 ||
fDefaultUserCropL.As_real64 () != 0.0 ||
fDefaultUserCropB.As_real64 () != 1.0 ||
fDefaultUserCropR.As_real64 () != 1.0)
{
#if qDNGValidate
ReportError ("non-default DefaultCUserCrop on non-main image");
#endif // qDNGValidate
return false;
}
}
// Warning if too little padding on CFA image.
#if qDNGValidate
if (fPhotometricInterpretation == piCFA)
{
const real64 kMinPad = 1.9;
if (fDefaultCropOriginH.As_real64 () < kMinPad)
{
ReportWarning ("Too little padding on left edge of CFA image",
"possible interpolation artifacts");
}
if (fDefaultCropOriginV.As_real64 () < kMinPad)
{
ReportWarning ("Too little padding on top edge of CFA image",
"possible interpolation artifacts");
}
if (fDefaultCropOriginH.As_real64 () +
fDefaultCropSizeH .As_real64 () > (real64) fActiveArea.W () - kMinPad)
{
ReportWarning ("Too little padding on right edge of CFA image",
"possible interpolation artifacts");
}
if (fDefaultCropOriginV.As_real64 () +
fDefaultCropSizeV .As_real64 () > (real64) fActiveArea.H () - kMinPad)
{
ReportWarning ("Too little padding on bottom edge of CFA image",
"possible interpolation artifacts");
}
}
#endif
// Check RowInterleaveFactor
if (fRowInterleaveFactor != 1)
{
if (fRowInterleaveFactor < 1 ||
fRowInterleaveFactor > fImageLength)
{
#if qDNGValidate
ReportError ("RowInterleaveFactor out of valid range",
LookupParentCode (parentCode));
#endif
return false;
}
if (shared.fDNGBackwardVersion < dngVersion_1_2_0_0)
{
#if qDNGValidate
ReportError ("Non-default RowInterleaveFactor tag not allowed in this DNG version",
LookupParentCode (parentCode));
#endif
return false;
}
}
// Check SubTileBlockSize
if (fSubTileBlockRows != 1 || fSubTileBlockCols != 1)
{
if (fSubTileBlockRows < 2 || fSubTileBlockRows > fTileLength ||
fSubTileBlockCols < 1 || fSubTileBlockCols > fTileWidth)
{
#if qDNGValidate
ReportError ("SubTileBlockSize out of valid range",
LookupParentCode (parentCode));
#endif
return false;
}
if ((fTileLength % fSubTileBlockRows) != 0 ||
(fTileWidth % fSubTileBlockCols) != 0)
{
#if qDNGValidate
ReportError ("TileSize not exact multiple of SubTileBlockSize",
LookupParentCode (parentCode));
#endif
return false;
}
if (shared.fDNGBackwardVersion < dngVersion_1_2_0_0)
{
#if qDNGValidate
ReportError ("Non-default SubTileBlockSize tag not allowed in this DNG version",
LookupParentCode (parentCode));
#endif
return false;
}
}
return true;
}
/*****************************************************************************/
uint32 dng_ifd::TilesAcross () const
{
if (fTileWidth)
{
return (SafeUint32Sub(SafeUint32Add(fImageWidth, fTileWidth), 1)) / fTileWidth;
}
return 0;
}
/*****************************************************************************/
uint32 dng_ifd::TilesDown () const
{
if (fTileLength)
{
return (SafeUint32Sub(SafeUint32Add(fImageLength, fTileLength), 1)) / fTileLength;
}
return 0;
}
/*****************************************************************************/
uint32 dng_ifd::TilesPerImage () const
{
uint32 total = TilesAcross () * TilesDown ();
if (fPlanarConfiguration == pcPlanar)
{
total *= fSamplesPerPixel;
}
return total;
}
/*****************************************************************************/
dng_rect dng_ifd::TileArea (uint32 rowIndex,
uint32 colIndex) const
{
dng_rect r;
r.t = rowIndex * fTileLength;
r.b = r.t + fTileLength;
r.l = colIndex * fTileWidth;
r.r = r.l + fTileWidth;
// If this IFD is using strips rather than tiles, the last strip
// is trimmed so it does not extend beyond the end of the image.
if (fUsesStrips)
{
r.b = Min_uint32 (r.b, fImageLength);
}
return r;
}
/*****************************************************************************/
uint32 dng_ifd::TileByteCount (const dng_rect &tile) const
{
if (fCompression == ccUncompressed)
{
uint32 bitsPerRow = SafeUint32Mult(tile.W (), fBitsPerSample [0]);
if (fPlanarConfiguration == pcInterleaved)
{
bitsPerRow = SafeUint32Mult(bitsPerRow, fSamplesPerPixel);
}
uint32 bytesPerRow = SafeUint32DivideUp(bitsPerRow, 8);
if (fPlanarConfiguration == pcRowInterleaved)
{
bytesPerRow = SafeUint32Mult(bytesPerRow, fSamplesPerPixel);
}
return SafeUint32Mult(bytesPerRow, tile.H ());
}
return 0;
}
/*****************************************************************************/
void dng_ifd::SetSingleStrip ()
{
fTileWidth = fImageWidth;
fTileLength = fImageLength;
fUsesTiles = false;
fUsesStrips = true;
}
/*****************************************************************************/
void dng_ifd::FindTileSize (uint32 bytesPerTile,
uint32 cellH,
uint32 cellV)
{
uint32 bytesPerSample = fSamplesPerPixel *
((fBitsPerSample [0] + 7) >> 3);
uint32 samplesPerTile = bytesPerTile / bytesPerSample;
uint32 tileSide = Round_uint32 (sqrt ((real64) samplesPerTile));
fTileWidth = Min_uint32 (fImageWidth, tileSide);
uint32 across = TilesAcross ();
fTileWidth = (fImageWidth + across - 1) / across;
fTileWidth = ((fTileWidth + cellH - 1) / cellH) * cellH;
fTileLength = Pin_uint32 (1,
samplesPerTile / fTileWidth,
fImageLength);
uint32 down = TilesDown ();
fTileLength = (fImageLength + down - 1) / down;
fTileLength = ((fTileLength + cellV - 1) / cellV) * cellV;
fUsesTiles = true;
fUsesStrips = false;
}
/*****************************************************************************/
void dng_ifd::FindStripSize (uint32 bytesPerStrip,
uint32 cellV)
{
uint32 bytesPerSample = fSamplesPerPixel *
((fBitsPerSample [0] + 7) >> 3);
uint32 samplesPerStrip = bytesPerStrip / bytesPerSample;
fTileWidth = fImageWidth;
fTileLength = Pin_uint32 (1,
samplesPerStrip / fTileWidth,
fImageLength);
uint32 down = TilesDown ();
fTileLength = (fImageLength + down - 1) / down;
fTileLength = ((fTileLength + cellV - 1) / cellV) * cellV;
fUsesTiles = false;
fUsesStrips = true;
}
/*****************************************************************************/
uint32 dng_ifd::PixelType () const
{
if (fSampleFormat [0] == sfFloatingPoint)
{
return ttFloat;
}
if (fBitsPerSample [0] <= 8)
{
return ttByte;
}
else if (fBitsPerSample [0] <= 16)
{
return ttShort;
}
return ttLong;
}
/*****************************************************************************/
bool dng_ifd::IsBaselineJPEG () const
{
if (fBitsPerSample [0] != 8)
{
return false;
}
if (fSampleFormat [0] != sfUnsignedInteger)
{
return false;
}
if (fCompression == ccLossyJPEG)
{
return true;
}
if (fCompression != ccJPEG)
{
return false;
}
switch (fPhotometricInterpretation)
{
case piBlackIsZero:
{
return (fSamplesPerPixel == 1);
}
case piYCbCr:
{
return (fSamplesPerPixel == 3 ) &&
(fPlanarConfiguration == pcInterleaved);
}
default:
break;
}
return false;
}
/*****************************************************************************/
bool dng_ifd::CanRead () const
{
dng_read_image reader;
return reader.CanRead (*this);
}
/*****************************************************************************/
void dng_ifd::ReadImage (dng_host &host,
dng_stream &stream,
dng_image &image,
dng_jpeg_image *jpegImage,
dng_fingerprint *jpegDigest) const
{
dng_read_image reader;
reader.Read (host,
*this,
stream,
image,
jpegImage,
jpegDigest);
}
/*****************************************************************************/