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 WEBPImageDecoder::clear()
{
#if USE(QCMSLIB)
clearColorTransform();
#endif
WebPDemuxDelete(m_demux);
m_demux = 0;
clearDecoder();
}
~PNGImageReader()
{
#if USE(QCMSLIB)
clearColorTransform();
#endif
png_destroy_read_struct(m_png ? &m_png : 0, m_info ? &m_info : 0, 0);
ASSERT(!m_png && !m_info);
m_readOffset = 0;
}
void close()
{
if (m_png && m_info)
// This will zero the pointers.
png_destroy_read_struct(&m_png, &m_info, 0);
#if USE(QCMSLIB)
clearColorTransform();
#endif
m_readOffset = 0;
}
bool WEBPImageDecoder::createColorTransform(const char* data, size_t size)
{
clearColorTransform();
qcms_profile* deviceProfile = ImageDecoder::qcmsOutputDeviceProfile();
if (!deviceProfile)
return false;
qcms_profile* inputProfile = qcms_profile_from_memory(data, size);
if (!inputProfile)
return false;
// We currently only support color profiles for RGB profiled images.
ASSERT(icSigRgbData == qcms_profile_get_color_space(inputProfile));
// The input image pixels are RGBA format.
qcms_data_type format = QCMS_DATA_RGBA_8;
// FIXME: Don't force perceptual intent if the image profile contains an intent.
m_transform = qcms_transform_create(inputProfile, format, deviceProfile, QCMS_DATA_RGBA_8, QCMS_INTENT_PERCEPTUAL);
qcms_profile_release(inputProfile);
return !!m_transform;
}
