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Plugin for soft-proofing

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This commit is contained in:
Jakub Melka
2020-12-25 19:01:08 +01:00
parent 05db7a1d30
commit 468a492e19
18 changed files with 881 additions and 9 deletions
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58
Pdf4QtLib/sources/pdfcms.cpp
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@ -59,9 +59,13 @@ private:
RGB,
CMYK,
XYZ,
SoftProofing,
ProfileCount
};
/// Returns true, if we are doing soft-proofing
bool isSoftProofing() const;
/// Creates a profile using provided id and a list of profile descriptors.
/// If profile can't be created, then null handle is returned.
/// \param id Id of color profile
@ -455,7 +459,23 @@ cmsHTRANSFORM PDFLittleCMS::getTransformFromICCProfile(const QByteArray& iccData
if (const cmsUInt32Number inputDataFormat = getProfileDataFormat(profile))
{
cmsUInt32Number lcmsIntent = getLittleCMSRenderingIntent(effectiveRenderingIntent);
transform = cmsCreateTransform(profile, inputDataFormat, m_profiles[Output], isRGB888Buffer ? TYPE_RGB_8 : TYPE_RGB_FLT, lcmsIntent, getTransformationFlags());
if (isSoftProofing())
{
cmsHPROFILE proofingProfile = m_profiles[SoftProofing];
RenderingIntent proofingIntent = m_settings.proofingIntent;
if (m_settings.proofingIntent == RenderingIntent::Auto)
{
proofingIntent = effectiveRenderingIntent;
}
transform = cmsCreateProofingTransform(profile, inputDataFormat, m_profiles[Output], isRGB888Buffer ? TYPE_RGB_8 : TYPE_RGB_FLT, proofingProfile,
lcmsIntent, getLittleCMSRenderingIntent(proofingIntent), getTransformationFlags());
}
else
{
transform = cmsCreateTransform(profile, inputDataFormat, m_profiles[Output], isRGB888Buffer ? TYPE_RGB_8 : TYPE_RGB_FLT, lcmsIntent, getTransformationFlags());
}
}
cmsCloseProfile(profile);
}
@ -514,8 +534,12 @@ void PDFLittleCMS::init()
m_profiles[Gray] = createProfile(m_settings.deviceGray, m_manager->getGrayProfiles());
m_profiles[RGB] = createProfile(m_settings.deviceRGB, m_manager->getRGBProfiles());
m_profiles[CMYK] = createProfile(m_settings.deviceCMYK, m_manager->getCMYKProfiles());
m_profiles[SoftProofing] = createProfile(m_settings.softProofingProfile, m_manager->getCMYKProfiles());
m_profiles[XYZ] = cmsCreateXYZProfile();
cmsUInt16Number alarmCodes[cmsMAXCHANNELS] = { 0xFFFF };
cmsSetAlarmCodes(alarmCodes);
if (m_settings.isWhitePaperColorTransformed)
{
m_paperColor = getColorFromDeviceRGB(PDFColor(1.0f, 1.0f, 1.0f), RenderingIntent::AbsoluteColorimetric, nullptr);
@ -533,6 +557,11 @@ void PDFLittleCMS::init()
m_transformationCache.reserve(64);
}
bool PDFLittleCMS::isSoftProofing() const
{
return (m_settings.isSoftProofing || m_settings.isGamutChecking) && m_profiles[SoftProofing];
}
cmsHPROFILE PDFLittleCMS::createProfile(const QString& id, const PDFColorProfileIdentifiers& profileDescriptors) const
{
auto it = std::find_if(profileDescriptors.cbegin(), profileDescriptors.cend(), [&id](const PDFColorProfileIdentifier& identifier) { return identifier.id == id; });
@ -621,7 +650,22 @@ cmsHTRANSFORM PDFLittleCMS::getTransform(Profile profile, RenderingIntent intent
if (input && output)
{
transform = cmsCreateTransform(input, getProfileDataFormat(input), output, isRGB888Buffer ? TYPE_RGB_8 : TYPE_RGB_FLT, getLittleCMSRenderingIntent(intent), getTransformationFlags());
if (isSoftProofing())
{
cmsHPROFILE proofingProfile = m_profiles[SoftProofing];
RenderingIntent proofingIntent = m_settings.proofingIntent;
if (m_settings.proofingIntent == RenderingIntent::Auto)
{
proofingIntent = intent;
}
transform = cmsCreateProofingTransform(input, getProfileDataFormat(input), output, isRGB888Buffer ? TYPE_RGB_8 : TYPE_RGB_FLT, proofingProfile,
getLittleCMSRenderingIntent(intent), getLittleCMSRenderingIntent(proofingIntent), getTransformationFlags());
}
else
{
transform = cmsCreateTransform(input, getProfileDataFormat(input), output, isRGB888Buffer ? TYPE_RGB_8 : TYPE_RGB_FLT, getLittleCMSRenderingIntent(intent), getTransformationFlags());
}
}
it = m_transformationCache.insert(std::make_pair(key, transform)).first;
@ -662,6 +706,16 @@ cmsUInt32Number PDFLittleCMS::getTransformationFlags() const
break;
}
if (m_settings.isGamutChecking)
{
flags |= cmsFLAGS_GAMUTCHECK;
}
if (m_settings.isSoftProofing)
{
flags |= cmsFLAGS_SOFTPROOFING;
}
return flags;
}