void createColorTransform(const ColorProfile& colorProfile, bool hasAlpha, bool sRGB)
{
clearColorTransform();
if (colorProfile.isEmpty() && !sRGB)
return;
qcms_profile* deviceProfile = ImageDecoder::qcmsOutputDeviceProfile();
if (!deviceProfile)
return;
qcms_profile* inputProfile = 0;
if (!colorProfile.isEmpty())
inputProfile = qcms_profile_from_memory(colorProfile.data(), colorProfile.size());
else
inputProfile = qcms_profile_sRGB();
if (!inputProfile)
return;
// We currently only support color profiles for RGB and RGBA images.
ASSERT(rgbData == qcms_profile_get_color_space(inputProfile));
if (qcms_profile_match(inputProfile, deviceProfile)) {
qcms_profile_release(inputProfile);
return;
}
// FIXME: Don't force perceptual intent if the image profile contains an intent.
qcms_data_type dataFormat = hasAlpha ? QCMS_DATA_RGBA_8 : QCMS_DATA_RGB_8;
m_transform = qcms_transform_create(inputProfile, dataFormat, deviceProfile, dataFormat, QCMS_INTENT_PERCEPTUAL);
qcms_profile_release(inputProfile);
}
void createColorTransform(const ColorProfile& colorProfile, bool hasAlpha)
{
if (m_transform)
qcms_transform_release(m_transform);
m_transform = 0;
if (colorProfile.isEmpty())
return;
qcms_profile* deviceProfile = ImageDecoder::qcmsOutputDeviceProfile();
if (!deviceProfile)
return;
qcms_profile* inputProfile = qcms_profile_from_memory(colorProfile.data(), colorProfile.size());
if (!inputProfile)
return;
// We currently only support color profiles for RGB profiled images.
ASSERT(icSigRgbData == qcms_profile_get_color_space(inputProfile));
qcms_data_type dataFormat = hasAlpha ? QCMS_DATA_RGBA_8 : QCMS_DATA_RGB_8;
// FIXME: Don't force perceptual intent if the image profile contains an intent.
m_transform = qcms_transform_create(inputProfile, dataFormat, deviceProfile, dataFormat, QCMS_INTENT_PERCEPTUAL);
qcms_profile_release(inputProfile);
}
static CGColorSpaceRef createColorSpace(const ColorProfile& colorProfile)
{
RetainPtr<CFDataRef> data(AdoptCF, CFDataCreate(kCFAllocatorDefault, reinterpret_cast<const UInt8*>(colorProfile.data()), colorProfile.size()));
#ifndef TARGETING_LEOPARD
return CGColorSpaceCreateWithICCProfile(data.get());
#else
RetainPtr<CGDataProviderRef> profileDataProvider(AdoptCF, CGDataProviderCreateWithCFData(data.get()));
CGFloat ranges[] = {0.0, 255.0, 0.0, 255.0, 0.0, 255.0};
return CGColorSpaceCreateICCBased(3, ranges, profileDataProvider.get(), deviceRGBColorSpaceRef());
#endif
}