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PL286/external/dng_sdk/source/dng_camera_profile.cpp

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/*****************************************************************************/
// Copyright 2006-2008 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_camera_profile.cpp#1 $ */
/* $DateTime: 2012/05/30 13:28:51 $ */
/* $Change: 832332 $ */
/* $Author: tknoll $ */
#include "dng_camera_profile.h"
#include "dng_1d_table.h"
#include "dng_assertions.h"
#include "dng_color_space.h"
#include "dng_host.h"
#include "dng_exceptions.h"
#include "dng_image_writer.h"
#include "dng_info.h"
#include "dng_parse_utils.h"
#include "dng_safe_arithmetic.h"
#include "dng_tag_codes.h"
#include "dng_tag_types.h"
#include "dng_temperature.h"
#include "dng_xy_coord.h"
/*****************************************************************************/
const char * kProfileName_Embedded = "Embedded";
const char * kAdobeCalibrationSignature = "com.adobe";
/*****************************************************************************/
dng_camera_profile::dng_camera_profile ()
: fName ()
, fCalibrationIlluminant1 (lsUnknown)
, fCalibrationIlluminant2 (lsUnknown)
, fColorMatrix1 ()
, fColorMatrix2 ()
, fForwardMatrix1 ()
, fForwardMatrix2 ()
, fReductionMatrix1 ()
, fReductionMatrix2 ()
, fFingerprint ()
, fCopyright ()
, fEmbedPolicy (pepAllowCopying)
, fHueSatDeltas1 ()
, fHueSatDeltas2 ()
, fHueSatMapEncoding (encoding_Linear)
, fLookTable ()
, fLookTableEncoding (encoding_Linear)
, fBaselineExposureOffset (0, 100)
, fDefaultBlackRender (defaultBlackRender_Auto)
, fToneCurve ()
, fProfileCalibrationSignature ()
, fUniqueCameraModelRestriction ()
, fWasReadFromDNG (false)
, fWasReadFromDisk (false)
, fWasBuiltinMatrix (false)
, fWasStubbed (false)
{
fToneCurve.SetInvalid ();
}
/*****************************************************************************/
dng_camera_profile::~dng_camera_profile ()
{
}
/*****************************************************************************/
real64 dng_camera_profile::IlluminantToTemperature (uint32 light)
{
switch (light)
{
case lsStandardLightA:
case lsTungsten:
{
return 2850.0;
}
case lsISOStudioTungsten:
{
return 3200.0;
}
case lsD50:
{
return 5000.0;
}
case lsD55:
case lsDaylight:
case lsFineWeather:
case lsFlash:
case lsStandardLightB:
{
return 5500.0;
}
case lsD65:
case lsStandardLightC:
case lsCloudyWeather:
{
return 6500.0;
}
case lsD75:
case lsShade:
{
return 7500.0;
}
case lsDaylightFluorescent:
{
return (5700.0 + 7100.0) * 0.5;
}
case lsDayWhiteFluorescent:
{
return (4600.0 + 5500.0) * 0.5;
}
case lsCoolWhiteFluorescent:
case lsFluorescent:
{
return (3800.0 + 4500.0) * 0.5;
}
case lsWhiteFluorescent:
{
return (3250.0 + 3800.0) * 0.5;
}
case lsWarmWhiteFluorescent:
{
return (2600.0 + 3250.0) * 0.5;
}
default:
{
return 0.0;
}
}
}
/******************************************************************************/
void dng_camera_profile::NormalizeColorMatrix (dng_matrix &m)
{
if (m.NotEmpty ())
{
// Find scale factor to normalize the matrix.
dng_vector coord = m * PCStoXYZ ();
real64 maxCoord = coord.MaxEntry ();
if (maxCoord > 0.0 && (maxCoord < 0.99 || maxCoord > 1.01))
{
m.Scale (1.0 / maxCoord);
}
// Round to four decimal places.
m.Round (10000);
}
}
/******************************************************************************/
void dng_camera_profile::SetColorMatrix1 (const dng_matrix &m)
{
fColorMatrix1 = m;
NormalizeColorMatrix (fColorMatrix1);
ClearFingerprint ();
}
/******************************************************************************/
void dng_camera_profile::SetColorMatrix2 (const dng_matrix &m)
{
fColorMatrix2 = m;
NormalizeColorMatrix (fColorMatrix2);
ClearFingerprint ();
}
/******************************************************************************/
// Make sure the forward matrix maps to exactly the PCS.
void dng_camera_profile::NormalizeForwardMatrix (dng_matrix &m)
{
if (m.NotEmpty ())
{
dng_vector cameraOne;
cameraOne.SetIdentity (m.Cols ());
dng_vector xyz = m * cameraOne;
m = PCStoXYZ ().AsDiagonal () *
Invert (xyz.AsDiagonal ()) *
m;
}
}
/******************************************************************************/
void dng_camera_profile::SetForwardMatrix1 (const dng_matrix &m)
{
fForwardMatrix1 = m;
fForwardMatrix1.Round (10000);
ClearFingerprint ();
}
/******************************************************************************/
void dng_camera_profile::SetForwardMatrix2 (const dng_matrix &m)
{
fForwardMatrix2 = m;
fForwardMatrix2.Round (10000);
ClearFingerprint ();
}
/*****************************************************************************/
void dng_camera_profile::SetReductionMatrix1 (const dng_matrix &m)
{
fReductionMatrix1 = m;
fReductionMatrix1.Round (10000);
ClearFingerprint ();
}
/******************************************************************************/
void dng_camera_profile::SetReductionMatrix2 (const dng_matrix &m)
{
fReductionMatrix2 = m;
fReductionMatrix2.Round (10000);
ClearFingerprint ();
}
/*****************************************************************************/
bool dng_camera_profile::HasColorMatrix1 () const
{
return fColorMatrix1.Cols () == 3 &&
fColorMatrix1.Rows () > 1;
}
/*****************************************************************************/
bool dng_camera_profile::HasColorMatrix2 () const
{
return fColorMatrix2.Cols () == 3 &&
fColorMatrix2.Rows () == fColorMatrix1.Rows ();
}
/*****************************************************************************/
void dng_camera_profile::SetHueSatDeltas1 (const dng_hue_sat_map &deltas1)
{
fHueSatDeltas1 = deltas1;
ClearFingerprint ();
}
/*****************************************************************************/
void dng_camera_profile::SetHueSatDeltas2 (const dng_hue_sat_map &deltas2)
{
fHueSatDeltas2 = deltas2;
ClearFingerprint ();
}
/*****************************************************************************/
void dng_camera_profile::SetLookTable (const dng_hue_sat_map &table)
{
fLookTable = table;
ClearFingerprint ();
}
/*****************************************************************************/
static void FingerprintMatrix (dng_md5_printer_stream &printer,
const dng_matrix &matrix)
{
tag_matrix tag (0, matrix);
// Tag's Put routine doesn't write the header, only the data
tag.Put (printer);
}
/*****************************************************************************/
static void FingerprintHueSatMap (dng_md5_printer_stream &printer,
const dng_hue_sat_map &map)
{
if (map.IsNull ())
return;
uint32 hues;
uint32 sats;
uint32 vals;
map.GetDivisions (hues, sats, vals);
printer.Put_uint32 (hues);
printer.Put_uint32 (sats);
printer.Put_uint32 (vals);
for (uint32 val = 0; val < vals; val++)
for (uint32 hue = 0; hue < hues; hue++)
for (uint32 sat = 0; sat < sats; sat++)
{
dng_hue_sat_map::HSBModify modify;
map.GetDelta (hue, sat, val, modify);
printer.Put_real32 (modify.fHueShift);
printer.Put_real32 (modify.fSatScale);
printer.Put_real32 (modify.fValScale);
}
}
/*****************************************************************************/
void dng_camera_profile::CalculateFingerprint () const
{
DNG_ASSERT (!fWasStubbed, "CalculateFingerprint on stubbed profile");
dng_md5_printer_stream printer;
// MD5 hash is always calculated on little endian data.
printer.SetLittleEndian ();
// The data that we fingerprint closely matches that saved
// by the profile_tag_set class in dng_image_writer.cpp, with
// the exception of the fingerprint itself.
if (HasColorMatrix1 ())
{
uint32 colorChannels = ColorMatrix1 ().Rows ();
printer.Put_uint16 ((uint16) fCalibrationIlluminant1);
FingerprintMatrix (printer, fColorMatrix1);
if (fForwardMatrix1.Rows () == fColorMatrix1.Cols () &&
fForwardMatrix1.Cols () == fColorMatrix1.Rows ())
{
FingerprintMatrix (printer, fForwardMatrix1);
}
if (colorChannels > 3 && fReductionMatrix1.Rows () *
fReductionMatrix1.Cols () == colorChannels * 3)
{
FingerprintMatrix (printer, fReductionMatrix1);
}
if (HasColorMatrix2 ())
{
printer.Put_uint16 ((uint16) fCalibrationIlluminant2);
FingerprintMatrix (printer, fColorMatrix2);
if (fForwardMatrix2.Rows () == fColorMatrix2.Cols () &&
fForwardMatrix2.Cols () == fColorMatrix2.Rows ())
{
FingerprintMatrix (printer, fForwardMatrix2);
}
if (colorChannels > 3 && fReductionMatrix2.Rows () *
fReductionMatrix2.Cols () == colorChannels * 3)
{
FingerprintMatrix (printer, fReductionMatrix2);
}
}
printer.Put (fName.Get (),
fName.Length ());
printer.Put (fProfileCalibrationSignature.Get (),
fProfileCalibrationSignature.Length ());
printer.Put_uint32 (fEmbedPolicy);
printer.Put (fCopyright.Get (),
fCopyright.Length ());
bool haveHueSat1 = HueSatDeltas1 ().IsValid ();
bool haveHueSat2 = HueSatDeltas2 ().IsValid () &&
HasColorMatrix2 ();
if (haveHueSat1)
{
FingerprintHueSatMap (printer, fHueSatDeltas1);
}
if (haveHueSat2)
{
FingerprintHueSatMap (printer, fHueSatDeltas2);
}
if (haveHueSat1 || haveHueSat2)
{
if (fHueSatMapEncoding != 0)
{
printer.Put_uint32 (fHueSatMapEncoding);
}
}
if (fLookTable.IsValid ())
{
FingerprintHueSatMap (printer, fLookTable);
if (fLookTableEncoding != 0)
{
printer.Put_uint32 (fLookTableEncoding);
}
}
if (fBaselineExposureOffset.IsValid ())
{
if (fBaselineExposureOffset.As_real64 () != 0.0)
{
printer.Put_real64 (fBaselineExposureOffset.As_real64 ());
}
}
if (fDefaultBlackRender != 0)
{
printer.Put_int32 (fDefaultBlackRender);
}
if (fToneCurve.IsValid ())
{
for (uint32 i = 0; i < fToneCurve.fCoord.size (); i++)
{
printer.Put_real32 ((real32) fToneCurve.fCoord [i].h);
printer.Put_real32 ((real32) fToneCurve.fCoord [i].v);
}
}
}
fFingerprint = printer.Result ();
}
/******************************************************************************/
bool dng_camera_profile::ValidForwardMatrix (const dng_matrix &m)
{
const real64 kThreshold = 0.01;
if (m.NotEmpty ())
{
dng_vector cameraOne;
cameraOne.SetIdentity (m.Cols ());
dng_vector xyz = m * cameraOne;
dng_vector pcs = PCStoXYZ ();
if (Abs_real64 (xyz [0] - pcs [0]) > kThreshold ||
Abs_real64 (xyz [1] - pcs [1]) > kThreshold ||
Abs_real64 (xyz [2] - pcs [2]) > kThreshold)
{
return false;
}
}
return true;
}
/******************************************************************************/
bool dng_camera_profile::IsValid (uint32 channels) const
{
// For Monochrome images, we ignore the camera profile.
if (channels == 1)
{
return true;
}
// ColorMatrix1 is required for all color images.
if (fColorMatrix1.Cols () != 3 ||
fColorMatrix1.Rows () != channels)
{
#if qDNGValidate
ReportError ("ColorMatrix1 is wrong size");
#endif
return false;
}
// ColorMatrix2 is optional, but it must be valid if present.
if (fColorMatrix2.Cols () != 0 ||
fColorMatrix2.Rows () != 0)
{
if (fColorMatrix2.Cols () != 3 ||
fColorMatrix2.Rows () != channels)
{
#if qDNGValidate
ReportError ("ColorMatrix2 is wrong size");
#endif
return false;
}
}
// ForwardMatrix1 is optional, but it must be valid if present.
if (fForwardMatrix1.Cols () != 0 ||
fForwardMatrix1.Rows () != 0)
{
if (fForwardMatrix1.Rows () != 3 ||
fForwardMatrix1.Cols () != channels)
{
#if qDNGValidate
ReportError ("ForwardMatrix1 is wrong size");
#endif
return false;
}
// Make sure ForwardMatrix1 does a valid mapping.
if (!ValidForwardMatrix (fForwardMatrix1))
{
#if qDNGValidate
ReportError ("ForwardMatrix1 does not map equal camera values to XYZ D50");
#endif
return false;
}
}
// ForwardMatrix2 is optional, but it must be valid if present.
if (fForwardMatrix2.Cols () != 0 ||
fForwardMatrix2.Rows () != 0)
{
if (fForwardMatrix2.Rows () != 3 ||
fForwardMatrix2.Cols () != channels)
{
#if qDNGValidate
ReportError ("ForwardMatrix2 is wrong size");
#endif
return false;
}
// Make sure ForwardMatrix2 does a valid mapping.
if (!ValidForwardMatrix (fForwardMatrix2))
{
#if qDNGValidate
ReportError ("ForwardMatrix2 does not map equal camera values to XYZ D50");
#endif
return false;
}
}
// ReductionMatrix1 is optional, but it must be valid if present.
if (fReductionMatrix1.Cols () != 0 ||
fReductionMatrix1.Rows () != 0)
{
if (fReductionMatrix1.Cols () != channels ||
fReductionMatrix1.Rows () != 3)
{
#if qDNGValidate
ReportError ("ReductionMatrix1 is wrong size");
#endif
return false;
}
}
// ReductionMatrix2 is optional, but it must be valid if present.
if (fReductionMatrix2.Cols () != 0 ||
fReductionMatrix2.Rows () != 0)
{
if (fReductionMatrix2.Cols () != channels ||
fReductionMatrix2.Rows () != 3)
{
#if qDNGValidate
ReportError ("ReductionMatrix2 is wrong size");
#endif
return false;
}
}
// Make sure ColorMatrix1 is invertable.
try
{
if (fReductionMatrix1.NotEmpty ())
{
(void) Invert (fColorMatrix1,
fReductionMatrix1);
}
else
{
(void) Invert (fColorMatrix1);
}
}
catch (...)
{
#if qDNGValidate
ReportError ("ColorMatrix1 is not invertable");
#endif
return false;
}
// Make sure ColorMatrix2 is invertable.
if (fColorMatrix2.NotEmpty ())
{
try
{
if (fReductionMatrix2.NotEmpty ())
{
(void) Invert (fColorMatrix2,
fReductionMatrix2);
}
else
{
(void) Invert (fColorMatrix2);
}
}
catch (...)
{
#if qDNGValidate
ReportError ("ColorMatrix2 is not invertable");
#endif
return false;
}
}
return true;
}
/*****************************************************************************/
bool dng_camera_profile::EqualData (const dng_camera_profile &profile) const
{
return fCalibrationIlluminant1 == profile.fCalibrationIlluminant1 &&
fCalibrationIlluminant2 == profile.fCalibrationIlluminant2 &&
fColorMatrix1 == profile.fColorMatrix1 &&
fColorMatrix2 == profile.fColorMatrix2 &&
fForwardMatrix1 == profile.fForwardMatrix1 &&
fForwardMatrix2 == profile.fForwardMatrix2 &&
fReductionMatrix1 == profile.fReductionMatrix1 &&
fReductionMatrix2 == profile.fReductionMatrix2 &&
fHueSatDeltas1 == profile.fHueSatDeltas1 &&
fHueSatDeltas2 == profile.fHueSatDeltas2 &&
fHueSatMapEncoding == profile.fHueSatMapEncoding &&
fLookTable == profile.fLookTable &&
fLookTableEncoding == profile.fLookTableEncoding &&
fDefaultBlackRender == profile.fDefaultBlackRender &&
fToneCurve == profile.fToneCurve &&
fBaselineExposureOffset.As_real64 () == profile.fBaselineExposureOffset.As_real64 () &&
fProfileCalibrationSignature == profile.fProfileCalibrationSignature;
}
/*****************************************************************************/
void dng_camera_profile::ReadHueSatMap (dng_stream &stream,
dng_hue_sat_map &hueSatMap,
uint32 hues,
uint32 sats,
uint32 vals,
bool skipSat0)
{
hueSatMap.SetDivisions (hues, sats, vals);
for (uint32 val = 0; val < vals; val++)
{
for (uint32 hue = 0; hue < hues; hue++)
{
for (uint32 sat = skipSat0 ? 1 : 0; sat < sats; sat++)
{
dng_hue_sat_map::HSBModify modify;
modify.fHueShift = stream.Get_real32 ();
modify.fSatScale = stream.Get_real32 ();
modify.fValScale = stream.Get_real32 ();
hueSatMap.SetDelta (hue, sat, val, modify);
}
}
}
}
/*****************************************************************************/
void dng_camera_profile::Parse (dng_stream &stream,
dng_camera_profile_info &profileInfo)
{
SetUniqueCameraModelRestriction (profileInfo.fUniqueCameraModel.Get ());
if (profileInfo.fProfileName.NotEmpty ())
{
SetName (profileInfo.fProfileName.Get ());
}
SetCopyright (profileInfo.fProfileCopyright.Get ());
SetEmbedPolicy (profileInfo.fEmbedPolicy);
SetCalibrationIlluminant1 (profileInfo.fCalibrationIlluminant1);
SetColorMatrix1 (profileInfo.fColorMatrix1);
if (profileInfo.fForwardMatrix1.NotEmpty ())
{
SetForwardMatrix1 (profileInfo.fForwardMatrix1);
}
if (profileInfo.fReductionMatrix1.NotEmpty ())
{
SetReductionMatrix1 (profileInfo.fReductionMatrix1);
}
if (profileInfo.fColorMatrix2.NotEmpty ())
{
SetCalibrationIlluminant2 (profileInfo.fCalibrationIlluminant2);
SetColorMatrix2 (profileInfo.fColorMatrix2);
if (profileInfo.fForwardMatrix2.NotEmpty ())
{
SetForwardMatrix2 (profileInfo.fForwardMatrix2);
}
if (profileInfo.fReductionMatrix2.NotEmpty ())
{
SetReductionMatrix2 (profileInfo.fReductionMatrix2);
}
}
SetProfileCalibrationSignature (profileInfo.fProfileCalibrationSignature.Get ());
if (profileInfo.fHueSatDeltas1Offset != 0 &&
profileInfo.fHueSatDeltas1Count != 0)
{
TempBigEndian setEndianness (stream, profileInfo.fBigEndian);
stream.SetReadPosition (profileInfo.fHueSatDeltas1Offset);
bool skipSat0 = (profileInfo.fHueSatDeltas1Count == SafeUint32Mult(
profileInfo.fProfileHues,
SafeUint32Sub(profileInfo.fProfileSats, 1),
profileInfo.fProfileVals, 3));
ReadHueSatMap (stream,
fHueSatDeltas1,
profileInfo.fProfileHues,
profileInfo.fProfileSats,
profileInfo.fProfileVals,
skipSat0);
}
if (profileInfo.fHueSatDeltas2Offset != 0 &&
profileInfo.fHueSatDeltas2Count != 0)
{
TempBigEndian setEndianness (stream, profileInfo.fBigEndian);
stream.SetReadPosition (profileInfo.fHueSatDeltas2Offset);
bool skipSat0 = (profileInfo.fHueSatDeltas2Count == SafeUint32Mult(
profileInfo.fProfileHues,
SafeUint32Sub(profileInfo.fProfileSats, 1),
profileInfo.fProfileVals, 3));
ReadHueSatMap (stream,
fHueSatDeltas2,
profileInfo.fProfileHues,
profileInfo.fProfileSats,
profileInfo.fProfileVals,
skipSat0);
}
if (profileInfo.fLookTableOffset != 0 &&
profileInfo.fLookTableCount != 0)
{
TempBigEndian setEndianness (stream, profileInfo.fBigEndian);
stream.SetReadPosition (profileInfo.fLookTableOffset);
bool skipSat0 = (profileInfo.fLookTableCount == SafeUint32Mult(
profileInfo.fLookTableHues,
SafeUint32Sub(profileInfo.fLookTableSats, 1),
profileInfo.fLookTableVals, 3));
ReadHueSatMap (stream,
fLookTable,
profileInfo.fLookTableHues,
profileInfo.fLookTableSats,
profileInfo.fLookTableVals,
skipSat0);
}
if ((profileInfo.fToneCurveCount & 1) == 0)
{
TempBigEndian setEndianness (stream, profileInfo.fBigEndian);
stream.SetReadPosition (profileInfo.fToneCurveOffset);
uint32 points = profileInfo.fToneCurveCount / 2;
fToneCurve.fCoord.resize (points);
for (size_t i = 0; i < points; i++)
{
dng_point_real64 point;
point.h = stream.Get_real32 ();
point.v = stream.Get_real32 ();
fToneCurve.fCoord [i] = point;
}
}
SetHueSatMapEncoding (profileInfo.fHueSatMapEncoding);
SetLookTableEncoding (profileInfo.fLookTableEncoding);
SetBaselineExposureOffset (profileInfo.fBaselineExposureOffset.As_real64 ());
SetDefaultBlackRender (profileInfo.fDefaultBlackRender);
}
/*****************************************************************************/
bool dng_camera_profile::ParseExtended (dng_stream &stream)
{
try
{
dng_camera_profile_info profileInfo;
if (!profileInfo.ParseExtended (stream))
{
return false;
}
Parse (stream, profileInfo);
return true;
}
catch (...)
{
// Eat parsing errors.
}
return false;
}
/*****************************************************************************/
void dng_camera_profile::SetFourColorBayer ()
{
uint32 j;
if (!IsValid (3))
{
ThrowProgramError ();
}
if (fColorMatrix1.NotEmpty ())
{
dng_matrix m (4, 3);
for (j = 0; j < 3; j++)
{
m [0] [j] = fColorMatrix1 [0] [j];
m [1] [j] = fColorMatrix1 [1] [j];
m [2] [j] = fColorMatrix1 [2] [j];
m [3] [j] = fColorMatrix1 [1] [j];
}
fColorMatrix1 = m;
}
if (fColorMatrix2.NotEmpty ())
{
dng_matrix m (4, 3);
for (j = 0; j < 3; j++)
{
m [0] [j] = fColorMatrix2 [0] [j];
m [1] [j] = fColorMatrix2 [1] [j];
m [2] [j] = fColorMatrix2 [2] [j];
m [3] [j] = fColorMatrix2 [1] [j];
}
fColorMatrix2 = m;
}
fReductionMatrix1.Clear ();
fReductionMatrix2.Clear ();
fForwardMatrix1.Clear ();
fForwardMatrix2.Clear ();
}
/*****************************************************************************/
dng_hue_sat_map * dng_camera_profile::HueSatMapForWhite (const dng_xy_coord &white) const
{
if (fHueSatDeltas1.IsValid ())
{
// If we only have the first table, just use it for any color temperature.
if (!fHueSatDeltas2.IsValid ())
{
return new dng_hue_sat_map (fHueSatDeltas1);
}
// Else we need to interpolate based on color temperature.
real64 temperature1 = CalibrationTemperature1 ();
real64 temperature2 = CalibrationTemperature2 ();
if (temperature1 <= 0.0 ||
temperature2 <= 0.0 ||
temperature1 == temperature2)
{
return new dng_hue_sat_map (fHueSatDeltas1);
}
bool reverseOrder = temperature1 > temperature2;
if (reverseOrder)
{
real64 temp = temperature1;
temperature1 = temperature2;
temperature2 = temp;
}
// Convert to temperature/offset space.
dng_temperature td (white);
// Find fraction to weight the first calibration.
real64 g;
if (td.Temperature () <= temperature1)
g = 1.0;
else if (td.Temperature () >= temperature2)
g = 0.0;
else
{
real64 invT = 1.0 / td.Temperature ();
g = (invT - (1.0 / temperature2)) /
((1.0 / temperature1) - (1.0 / temperature2));
}
// Fix up if we swapped the order.
if (reverseOrder)
{
g = 1.0 - g;
}
// Do the interpolation.
return dng_hue_sat_map::Interpolate (HueSatDeltas1 (),
HueSatDeltas2 (),
g);
}
return NULL;
}
/*****************************************************************************/
void dng_camera_profile::Stub ()
{
(void) Fingerprint ();
dng_hue_sat_map nullTable;
fHueSatDeltas1 = nullTable;
fHueSatDeltas2 = nullTable;
fLookTable = nullTable;
fToneCurve.SetInvalid ();
fWasStubbed = true;
}
/*****************************************************************************/
void SplitCameraProfileName (const dng_string &name,
dng_string &baseName,
int32 &version)
{
baseName = name;
version = 0;
uint32 len = baseName.Length ();
if (len > 5 && baseName.EndsWith (" beta"))
{
baseName.Truncate (len - 5);
version += -10;
}
else if (len > 7)
{
char lastChar = name.Get () [len - 1];
if (lastChar >= '0' && lastChar <= '9')
{
dng_string temp = name;
temp.Truncate (len - 1);
if (temp.EndsWith (" beta "))
{
baseName.Truncate (len - 7);
version += ((int32) (lastChar - '0')) - 10;
}
}
}
len = baseName.Length ();
if (len > 3)
{
char lastChar = name.Get () [len - 1];
if (lastChar >= '0' && lastChar <= '9')
{
dng_string temp = name;
temp.Truncate (len - 1);
if (temp.EndsWith (" v"))
{
baseName.Truncate (len - 3);
version += ((int32) (lastChar - '0')) * 100;
}
}
}
}
/*****************************************************************************/
void BuildHueSatMapEncodingTable (dng_memory_allocator &allocator,
uint32 encoding,
AutoPtr<dng_1d_table> &encodeTable,
AutoPtr<dng_1d_table> &decodeTable,
bool subSample)
{
encodeTable.Reset ();
decodeTable.Reset ();
switch (encoding)
{
case encoding_Linear:
{
break;
}
case encoding_sRGB:
{
encodeTable.Reset (new dng_1d_table);
decodeTable.Reset (new dng_1d_table);
const dng_1d_function & curve = dng_function_GammaEncode_sRGB::Get ();
encodeTable->Initialize (allocator,
curve,
subSample);
const dng_1d_inverse inverse (curve);
decodeTable->Initialize (allocator,
inverse,
subSample);
break;
}
default:
{
DNG_REPORT ("Unsupported hue sat map / look table encoding.");
break;
}
}
}
/*****************************************************************************/