static cmsHPROFILE _create_profile(gchar *iccprofile)
{
cmsHPROFILE profile = NULL;
if(!strcmp(iccprofile, "sRGB"))
{
// default: sRGB
profile = dt_colorspaces_create_srgb_profile();
}
else if(!strcmp(iccprofile, "linear_rec709_rgb") || !strcmp(iccprofile, "linear_rgb"))
{
profile = dt_colorspaces_create_linear_rec709_rgb_profile();
}
else if(!strcmp(iccprofile, "linear_rec2020_rgb"))
{
profile = dt_colorspaces_create_linear_rec2020_rgb_profile();
}
else if(!strcmp(iccprofile, "adobergb"))
{
profile = dt_colorspaces_create_adobergb_profile();
}
else if(!strcmp(iccprofile, "X profile"))
{
// x default
pthread_rwlock_rdlock(&darktable.control->xprofile_lock);
if(darktable.control->xprofile_data)
profile = cmsOpenProfileFromMem(darktable.control->xprofile_data, darktable.control->xprofile_size);
pthread_rwlock_unlock(&darktable.control->xprofile_lock);
}
else
{
// else: load file name
char filename[PATH_MAX];
dt_colorspaces_find_profile(filename, sizeof(filename), iccprofile, "out");
profile = cmsOpenProfileFromFile(filename, "r");
}
/* if no match lets fallback to srgb profile */
if (!profile)
profile = dt_colorspaces_create_srgb_profile();
return profile;
}
/*
* Class: sun_java2d_cmm_lcms_LCMS
* Method: loadProfile
* Signature: ([B)J
*/
JNIEXPORT jlong JNICALL Java_sun_java2d_cmm_lcms_LCMS_loadProfile
(JNIEnv *env, jobject obj, jbyteArray data)
{
jbyte* dataArray;
jint dataSize;
storeID_t sProf;
dataArray = (*env)->GetByteArrayElements (env, data, 0);
dataSize = (*env)->GetArrayLength (env, data);
sProf.pf = cmsOpenProfileFromMem((LPVOID)dataArray, (DWORD) dataSize);
(*env)->ReleaseByteArrayElements (env, data, dataArray, 0);
if (sProf.pf == NULL) {
JNU_ThrowIllegalArgumentException(env, "Invalid profile data");
}
return sProf.j;
}
static PyObject*
cms_profile_fromstring(PyObject* self, PyObject* args)
{
cmsHPROFILE hProfile;
char* pProfile;
int nProfile;
if (!PyArg_ParseTuple(args, "s#:profile_fromstring", &pProfile, &nProfile))
return NULL;
cmsErrorAction(LCMS_ERROR_IGNORE);
hProfile = cmsOpenProfileFromMem(pProfile, nProfile);
if (!hProfile) {
PyErr_SetString(PyExc_IOError, "cannot open profile from string");
return NULL;
}
return cms_profile_new(hProfile);
}
ScColorProfile ScLcms2ColorMgmtEngineImpl::openProfileFromMem(ScColorMgmtEngine& engine, const QByteArray& data)
{
ScColorProfile profile;
cmsHPROFILE lcmsProf = cmsOpenProfileFromMem((const void *) data.data(), data.size());
if (lcmsProf)
{
ScLcms2ColorProfileImpl* profData = new ScLcms2ColorProfileImpl(engine, lcmsProf);
QString desc = profData->productDescription();
if (!desc.isEmpty())
profData->m_profilePath = QString("memprofile://%1").arg(desc);
profData->m_profileData = data;
profile = ScColorProfile(dynamic_cast<ScColorProfileData*>(profData));
}
if (profile.isNull() && lcmsProf)
{
cmsCloseProfile(lcmsProf);
lcmsProf = NULL;
}
return profile;
}
static cmsHPROFILE
lcms_load_profile (const gchar *filename,
guchar *checksum)
{
cmsHPROFILE profile;
GMappedFile *file;
gchar *data;
gsize len;
GError *error = NULL;
g_return_val_if_fail (filename != NULL, NULL);
file = g_mapped_file_new (filename, FALSE, &error);
if (! file)
{
g_message ("%s", error->message);
g_error_free (error);
return NULL;
}
data = g_mapped_file_get_contents (file);
len = g_mapped_file_get_length (file);
profile = cmsOpenProfileFromMem (data, len);
if (profile)
{
lcms_calculate_checksum (data, len, checksum);
}
else
{
g_message (_("Could not load ICC profile from '%s'"),
gimp_filename_to_utf8 (filename));
}
g_mapped_file_unref (file);
return profile;
}
/**
* gimp_color_profile_new_from_lcms_profile:
* @lcms_profile: an LCMS cmsHPROFILE pointer
* @error: return location for #GError
*
* This function creates a GimpColorProfile from a cmsHPROFILE. On
* error, %NULL is returned and @error is set. The passed
* @lcms_profile pointer is not retained by the created
* #GimpColorProfile.
*
* Return value: the #GimpColorProfile, or %NULL.
*
* Since: 2.10
**/
GimpColorProfile *
gimp_color_profile_new_from_lcms_profile (gpointer lcms_profile,
GError **error)
{
cmsUInt32Number size;
g_return_val_if_fail (lcms_profile != NULL, NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
if (cmsSaveProfileToMem (lcms_profile, NULL, &size))
{
guint8 *data = g_malloc (size);
if (cmsSaveProfileToMem (lcms_profile, data, &size))
{
gsize length = size;
lcms_profile = cmsOpenProfileFromMem (data, length);
if (lcms_profile)
{
GimpColorProfile *profile;
profile = g_object_new (GIMP_TYPE_COLOR_PROFILE, NULL);
profile->priv->lcms_profile = lcms_profile;
profile->priv->data = data;
profile->priv->length = length;
return profile;
}
}
g_free (data);
}
g_set_error_literal (error, gimp_color_profile_error_quark (), 0,
_("Could not save color profile to memory"));
return NULL;
}
Profile::Ptr Profile::getMonitorProfile()
{
cmsHPROFILE hProfile = 0;
// Get the profile from you config file if the user has set it.
// if the user allows override through the atom, do this:
#ifdef HAVE_X11
if (QX11Info::isPlatformX11()) {
// get the current screen...
int screen = -1;
Atom type;
int format;
unsigned long nitems;
unsigned long bytes_after;
quint8 *str;
static Atom icc_atom = XInternAtom(QX11Info::display(), "_ICC_PROFILE", True);
if (XGetWindowProperty(QX11Info::display(),
QX11Info::appRootWindow(screen),
icc_atom,
0,
INT_MAX,
False,
XA_CARDINAL,
&type,
&format,
&nitems,
&bytes_after,
(unsigned char **) &str) == Success
) {
hProfile = cmsOpenProfileFromMem((void*)str, nitems);
}
}
#endif
if (!hProfile) {
return getSRgbProfile();
}
return Profile::Ptr(new Profile(hProfile));
}
static cmsHPROFILE
cdisplay_lcms_get_rgb_profile (CdisplayLcms *lcms)
{
GimpColorConfig *config;
GimpColorManaged *managed;
cmsHPROFILE profile = NULL;
managed = gimp_color_display_get_managed (GIMP_COLOR_DISPLAY (lcms));
if (managed)
{
gsize len;
const guint8 *data = gimp_color_managed_get_icc_profile (managed, &len);
if (data)
profile = cmsOpenProfileFromMem ((gpointer) data, len);
if (profile && ! gimp_lcms_profile_is_rgb (profile))
{
cmsCloseProfile (profile);
profile = NULL;
}
}
if (! profile)
{
config = gimp_color_display_get_config (GIMP_COLOR_DISPLAY (lcms));
if (config->rgb_profile)
profile = cmsOpenProfileFromFile (config->rgb_profile, "r");
if (profile && ! gimp_lcms_profile_is_rgb (profile))
{
cmsCloseProfile (profile);
profile = NULL;
}
}
return profile;
}
static cmsHPROFILE _create_profile(gchar *iccprofile)
{
cmsHPROFILE profile = NULL;
if(!strcmp(iccprofile, "sRGB"))
{
// default: sRGB
profile = dt_colorspaces_create_srgb_profile();
}
else if(!strcmp(iccprofile, "linear_rgb"))
{
profile = dt_colorspaces_create_linear_rgb_profile();
}
else if(!strcmp(iccprofile, "adobergb"))
{
profile = dt_colorspaces_create_adobergb_profile();
}
else if(!strcmp(iccprofile, "X profile"))
{
// x default
if(darktable.control->xprofile_data)
profile = cmsOpenProfileFromMem(darktable.control->xprofile_data, darktable.control->xprofile_size);
else
profile = NULL;
}
else
{
// else: load file name
char filename[1024];
dt_colorspaces_find_profile(filename, 1024, iccprofile, "out");
profile = cmsOpenProfileFromFile(filename, "r");
}
/* if no match lets fallback to srgb profile */
if (!profile)
profile = dt_colorspaces_create_srgb_profile();
return profile;
}
static cmsHPROFILE
lcms_image_get_profile (GimpColorConfig *config,
gint32 image,
guchar *checksum)
{
GimpParasite *parasite;
cmsHPROFILE profile = NULL;
g_return_val_if_fail (image != -1, NULL);
parasite = gimp_image_get_parasite (image, "icc-profile");
if (parasite)
{
profile = cmsOpenProfileFromMem ((gpointer) gimp_parasite_data (parasite),
gimp_parasite_data_size (parasite));
if (profile)
{
lcms_calculate_checksum (gimp_parasite_data (parasite),
gimp_parasite_data_size (parasite),
checksum);
}
else
{
g_message (_("Data attached as 'icc-profile' does not appear to "
"be an ICC color profile"));
}
gimp_parasite_free (parasite);
}
else if (config->rgb_profile)
{
profile = lcms_load_profile (config->rgb_profile, checksum);
}
return profile;
}
static PyObject*
cms_profile_fromstring(PyObject* self, PyObject* args)
{
cmsHPROFILE hProfile;
char* pProfile;
int nProfile;
#if PY_VERSION_HEX >= 0x03000000
if (!PyArg_ParseTuple(args, "y#:profile_frombytes", &pProfile, &nProfile))
return NULL;
#else
if (!PyArg_ParseTuple(args, "s#:profile_fromstring", &pProfile, &nProfile))
return NULL;
#endif
hProfile = cmsOpenProfileFromMem(pProfile, nProfile);
if (!hProfile) {
PyErr_SetString(PyExc_IOError, "cannot open profile from string");
return NULL;
}
return cms_profile_new(hProfile);
}
void TestKoLcmsColorProfile::testConversion()
{
const KoColorSpace *sRgb = KoColorSpaceRegistry::instance()->rgb16("sRGB built-in");
Q_ASSERT(sRgb);
const KoColorSpace *linearRgb = KoColorSpaceRegistry::instance()->rgb16("scRGB (linear)");
Q_ASSERT(linearRgb);
quint16 src[4];
src[0] = 257;
src[1] = 257;
src[2] = 257;
src[3] = 65535;
quint16 dst[4];
memset(&dst, 0, 8);
linearRgb->convertPixelsTo((quint8 *)&src, (quint8 *)&dst, sRgb, 1, KoColorConversionTransformation::IntentRelativeColorimetric, KoColorConversionTransformation::BlackpointCompensation);
quint16 dst2[4];
memset(&dst2, 0, 8);
cmsHPROFILE sRgbProfile = cmsCreate_sRGBProfile();
QByteArray rawData = linearRgb->profile()->rawData();
cmsHPROFILE linearRgbProfile = cmsOpenProfileFromMem((void *)rawData.constData(), rawData.size());
cmsHTRANSFORM tf = cmsCreateTransform(linearRgbProfile,
TYPE_BGRA_16,
sRgbProfile,
TYPE_BGRA_16,
INTENT_RELATIVE_COLORIMETRIC,
cmsFLAGS_NOOPTIMIZE);
cmsDoTransform(tf, (quint8 *)&src, (quint8 *)&dst2, 1);
Q_ASSERT(dst[0] == dst2[0]);
}
void CorrectImage(wxImage& image, const vigra::ImageImportInfo::ICCProfile& iccProfile, const cmsHPROFILE& monitorProfile)
{
cmsHPROFILE inputICC = NULL;
if (!iccProfile.empty())
{
inputICC = cmsOpenProfileFromMem(iccProfile.data(), iccProfile.size());
};
// check type of input profile
if (inputICC != NULL)
{
if (cmsGetColorSpace(inputICC) != cmsSigRgbData)
{
cmsCloseProfile(inputICC);
inputICC = NULL;
};
};
// if there is no icc profile in file fall back to sRGB
if (inputICC == NULL)
{
inputICC = cmsCreate_sRGBProfile();
};
// now build transform
cmsHTRANSFORM transform = cmsCreateTransform(inputICC, TYPE_RGB_8,
monitorProfile, TYPE_RGB_8,
INTENT_PERCEPTUAL, cmsFLAGS_BLACKPOINTCOMPENSATION);
unsigned char* imgData = image.GetData();
const int imgWidth = image.GetWidth();
const int imgHeight = image.GetHeight();
#pragma omp parallel for
for (int y = 0; y < imgHeight; ++y)
{
cmsDoTransform(transform, imgData + 3 * y * imgWidth, imgData + 3 * y * imgWidth, imgWidth);
};
cmsDeleteTransform(transform);
cmsCloseProfile(inputICC);
};
static cmsHPROFILE color_man_cache_load_profile(ColorManProfileType type, const gchar *file,
guchar *data, guint data_len)
{
cmsHPROFILE profile = NULL;
switch (type)
{
case COLOR_PROFILE_FILE:
if (file)
{
gchar *pathl;
pathl = path_from_utf8(file);
profile = cmsOpenProfileFromFile(pathl, "r");
g_free(pathl);
}
break;
case COLOR_PROFILE_SRGB:
profile = cmsCreate_sRGBProfile();
break;
case COLOR_PROFILE_ADOBERGB:
profile = color_man_create_adobe_comp();
break;
case COLOR_PROFILE_MEM:
if (data)
{
profile = cmsOpenProfileFromMem(data, data_len);
}
break;
case COLOR_PROFILE_NONE:
default:
break;
}
return profile;
}
static gboolean
lcms_image_set_profile (gint32 image,
cmsHPROFILE profile,
const gchar *filename,
gboolean undo_group)
{
g_return_val_if_fail (image != -1, FALSE);
if (filename)
{
GimpParasite *parasite;
GMappedFile *file;
GError *error = NULL;
file = g_mapped_file_new (filename, FALSE, &error);
if (! file)
{
g_message ("%s", error->message);
g_error_free (error);
return FALSE;
}
/* check that this file is actually an ICC profile */
if (! profile)
{
profile = cmsOpenProfileFromMem (g_mapped_file_get_contents (file),
g_mapped_file_get_length (file));
if (profile)
{
cmsCloseProfile (profile);
}
else
{
g_message (_("'%s' does not appear to be an ICC color profile"),
gimp_filename_to_utf8 (filename));
return FALSE;
}
}
if (undo_group)
gimp_image_undo_group_start (image);
parasite = gimp_parasite_new ("icc-profile",
GIMP_PARASITE_PERSISTENT |
GIMP_PARASITE_UNDOABLE,
g_mapped_file_get_length (file),
g_mapped_file_get_contents (file));
g_mapped_file_unref (file);
gimp_image_attach_parasite (image, parasite);
gimp_parasite_free (parasite);
}
else
{
if (undo_group)
gimp_image_undo_group_start (image);
gimp_image_detach_parasite (image, "icc-profile");
}
gimp_image_detach_parasite (image, "icc-profile-name");
if (undo_group)
gimp_image_undo_group_end (image);
return TRUE;
}
// Get the display ICC profile of the monitor associated with the widget.
// For X display, uses the ICC profile specifications version 0.2 from
// http://burtonini.com/blog/computers/xicc
// Based on code from Gimp's modules/cdisplay_lcms.c
void dt_ctl_set_display_profile()
{
if(!dt_control_running()) return;
// make sure that no one gets a broken profile
// FIXME: benchmark if the try is really needed when moving/resizing the window. Maybe we can just lock it and block
if(pthread_rwlock_trywrlock(&darktable.control->xprofile_lock))
return; // we are already updating the profile. Or someone is reading right now. Too bad we can't distinguish that. Whatever ...
GtkWidget *widget = dt_ui_center(darktable.gui->ui);
guint8 *buffer = NULL;
gint buffer_size = 0;
gchar *profile_source = NULL;
#if defined GDK_WINDOWING_X11
// we will use the xatom no matter what configured when compiled without colord
gboolean use_xatom = TRUE;
#if defined USE_COLORDGTK
gboolean use_colord = TRUE;
gchar *display_profile_source = dt_conf_get_string("ui_last/display_profile_source");
if(display_profile_source)
{
if(!strcmp(display_profile_source, "xatom"))
use_colord = FALSE;
else if(!strcmp(display_profile_source, "colord"))
use_xatom = FALSE;
g_free(display_profile_source);
}
#endif
/* let's have a look at the xatom, just in case ... */
if(use_xatom)
{
GdkScreen *screen = gtk_widget_get_screen(widget);
if ( screen==NULL )
screen = gdk_screen_get_default();
int monitor = gdk_screen_get_monitor_at_window (screen, gtk_widget_get_window(widget));
char *atom_name;
if (monitor > 0)
atom_name = g_strdup_printf("_ICC_PROFILE_%d", monitor);
else
atom_name = g_strdup("_ICC_PROFILE");
profile_source = g_strdup_printf("xatom %s", atom_name);
GdkAtom type = GDK_NONE;
gint format = 0;
gdk_property_get(gdk_screen_get_root_window(screen),
gdk_atom_intern(atom_name, FALSE), GDK_NONE,
0, 64 * 1024 * 1024, FALSE,
&type, &format, &buffer_size, &buffer);
g_free(atom_name);
}
#ifdef USE_COLORDGTK
/* also try to get the profile from colord. this will set the value asynchronously! */
if(use_colord)
{
CdWindow *window = cd_window_new();
GtkWidget *center_widget = dt_ui_center(darktable.gui->ui);
cd_window_get_profile(window, center_widget, NULL, dt_ctl_get_display_profile_colord_callback, NULL);
}
#endif
#elif defined GDK_WINDOWING_QUARTZ
GdkScreen *screen = gtk_widget_get_screen(widget);
if ( screen==NULL )
screen = gdk_screen_get_default();
int monitor = gdk_screen_get_monitor_at_window(screen, gtk_widget_get_window(widget));
CGDirectDisplayID ids[monitor + 1];
uint32_t total_ids;
CMProfileRef prof = NULL;
if(CGGetOnlineDisplayList(monitor + 1, &ids[0], &total_ids) == kCGErrorSuccess && total_ids == monitor + 1)
CMGetProfileByAVID(ids[monitor], &prof);
if ( prof!=NULL )
{
CFDataRef data;
data = CMProfileCopyICCData(NULL, prof);
CMCloseProfile(prof);
UInt8 *tmp_buffer = (UInt8 *) g_malloc(CFDataGetLength(data));
CFDataGetBytes(data, CFRangeMake(0, CFDataGetLength(data)), tmp_buffer);
buffer = (guint8 *) tmp_buffer;
buffer_size = CFDataGetLength(data);
CFRelease(data);
}
profile_source = g_strdup("osx color profile api");
#elif defined G_OS_WIN32
(void)widget;
HDC hdc = GetDC (NULL);
if ( hdc!=NULL )
{
DWORD len = 0;
GetICMProfile (hdc, &len, NULL);
gchar *path = g_new (gchar, len);
if (GetICMProfile (hdc, &len, path))
{
gsize size;
g_file_get_contents(path, (gchar**)&buffer, &size, NULL);
buffer_size = size;
}
g_free (path);
ReleaseDC (NULL, hdc);
}
profile_source = g_strdup("windows color profile api");
#endif
int profile_changed = buffer_size > 0 &&
(darktable.control->xprofile_size != buffer_size || memcmp(darktable.control->xprofile_data, buffer, buffer_size) != 0);
if(profile_changed)
{
cmsHPROFILE profile = NULL;
char name[512];
// thanks to ufraw for this!
g_free(darktable.control->xprofile_data);
darktable.control->xprofile_data = buffer;
darktable.control->xprofile_size = buffer_size;
profile = cmsOpenProfileFromMem(buffer, buffer_size);
if(profile)
{
dt_colorspaces_get_profile_name(profile, "en", "US", name, sizeof(name));
cmsCloseProfile(profile);
}
dt_print(DT_DEBUG_CONTROL, "[color profile] we got a new screen profile `%s' from the %s (size: %d)\n", *name?name:"(unknown)", profile_source, buffer_size);
}
pthread_rwlock_unlock(&darktable.control->xprofile_lock);
if(profile_changed)
dt_control_signal_raise(darktable.signals, DT_SIGNAL_CONTROL_PROFILE_CHANGED);
g_free(profile_source);
}
/**
* gimp_color_profile_new_from_file:
* @file: a #GFile
* @error: return location for #GError
*
* This function opens an ICC color profile from @file.
*
* Return value: the #GimpColorProfile, or %NULL. On error, %NULL is
* returned and @error is set.
*
* Since: 2.10
**/
GimpColorProfile *
gimp_color_profile_new_from_file (GFile *file,
GError **error)
{
GimpColorProfile *profile = NULL;
cmsHPROFILE lcms_profile = NULL;
guint8 *data = NULL;
gsize length = 0;
gchar *path;
g_return_val_if_fail (G_IS_FILE (file), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
path = g_file_get_path (file);
if (path)
{
GMappedFile *mapped;
mapped = g_mapped_file_new (path, FALSE, error);
if (! mapped)
return NULL;
length = g_mapped_file_get_length (mapped);
data = g_memdup (g_mapped_file_get_contents (mapped), length);
lcms_profile = cmsOpenProfileFromMem (data, length);
g_mapped_file_unref (mapped);
}
else
{
GFileInfo *info;
info = g_file_query_info (file,
G_FILE_ATTRIBUTE_STANDARD_SIZE,
G_FILE_QUERY_INFO_NONE,
NULL, error);
if (info)
{
GInputStream *input;
length = g_file_info_get_size (info);
data = g_malloc (length);
g_object_unref (info);
input = G_INPUT_STREAM (g_file_read (file, NULL, error));
if (input)
{
gsize bytes_read;
if (g_input_stream_read_all (input, data, length,
&bytes_read, NULL, error) &&
bytes_read == length)
{
lcms_profile = cmsOpenProfileFromMem (data, length);
}
g_object_unref (input);
}
}
}
if (lcms_profile)
{
profile = g_object_new (GIMP_TYPE_COLOR_PROFILE, NULL);
profile->priv->lcms_profile = lcms_profile;
profile->priv->data = data;
profile->priv->length = length;
}
else
{
if (data)
g_free (data);
if (error && *error == NULL)
{
g_set_error (error, gimp_color_profile_error_quark (), 0,
_("'%s' does not appear to be an ICC color profile"),
gimp_file_get_utf8_name (file));
}
}
return profile;
}
static
int TransformImage(char *cDefInpProf, char *cOutProf)
{
cmsHPROFILE hIn, hOut, hProof;
cmsHTRANSFORM xform;
cmsUInt32Number wInput, wOutput;
int OutputColorSpace;
cmsUInt32Number dwFlags = 0;
cmsUInt32Number EmbedLen;
cmsUInt8Number* EmbedBuffer;
cmsSetAdaptationState(ObserverAdaptationState);
if (BlackPointCompensation) {
dwFlags |= cmsFLAGS_BLACKPOINTCOMPENSATION;
}
switch (PrecalcMode) {
case 0: dwFlags |= cmsFLAGS_NOOPTIMIZE; break;
case 2: dwFlags |= cmsFLAGS_HIGHRESPRECALC; break;
case 3: dwFlags |= cmsFLAGS_LOWRESPRECALC; break;
default:;
}
if (GamutCheck) {
dwFlags |= cmsFLAGS_GAMUTCHECK;
cmsSetAlarmCodes(Alarm);
}
// Take input color space
wInput = GetInputPixelType();
if (lIsDeviceLink) {
hIn = cmsOpenProfileFromFile(cDefInpProf, "r");
hOut = NULL;
hProof = NULL;
}
else {
if (!IgnoreEmbedded && read_icc_profile(&Decompressor, &EmbedBuffer, &EmbedLen))
{
hIn = cmsOpenProfileFromMem(EmbedBuffer, EmbedLen);
if (Verbose) {
fprintf(stdout, " (Embedded profile found)\n");
PrintProfileInformation(hIn);
fflush(stdout);
}
if (hIn != NULL && SaveEmbedded != NULL)
SaveMemoryBlock(EmbedBuffer, EmbedLen, SaveEmbedded);
free(EmbedBuffer);
}
else
{
// Default for ITU/Fax
if (cDefInpProf == NULL && T_COLORSPACE(wInput) == PT_Lab)
cDefInpProf = "*Lab";
if (cDefInpProf != NULL && cmsstrcasecmp(cDefInpProf, "*lab") == 0)
hIn = CreateITU2PCS_ICC();
else
hIn = OpenStockProfile(0, cDefInpProf);
}
if (cOutProf != NULL && cmsstrcasecmp(cOutProf, "*lab") == 0)
hOut = CreatePCS2ITU_ICC();
else
hOut = OpenStockProfile(0, cOutProf);
hProof = NULL;
if (cProofing != NULL) {
hProof = OpenStockProfile(0, cProofing);
if (hProof == NULL) {
FatalError("Proofing profile couldn't be read.");
}
dwFlags |= cmsFLAGS_SOFTPROOFING;
}
}
if (!hIn)
FatalError("Input profile couldn't be read.");
if (!hOut)
FatalError("Output profile couldn't be read.");
// Assure both, input profile and input JPEG are on same colorspace
if (cmsGetColorSpace(hIn) != _cmsICCcolorSpace(T_COLORSPACE(wInput)))
FatalError("Input profile is not operating in proper color space");
// Output colorspace is given by output profile
if (lIsDeviceLink) {
OutputColorSpace = GetDevicelinkColorSpace(hIn);
}
else {
OutputColorSpace = GetProfileColorSpace(hOut);
}
jpeg_copy_critical_parameters(&Decompressor, &Compressor);
WriteOutputFields(OutputColorSpace);
wOutput = ComputeOutputFormatDescriptor(wInput, OutputColorSpace);
xform = cmsCreateProofingTransform(hIn, wInput,
hOut, wOutput,
hProof, Intent,
ProofingIntent, dwFlags);
if (xform == NULL)
FatalError("Cannot transform by using the profiles");
DoTransform(xform, OutputColorSpace);
jcopy_markers_execute(&Decompressor, &Compressor);
cmsDeleteTransform(xform);
cmsCloseProfile(hIn);
cmsCloseProfile(hOut);
if (hProof) cmsCloseProfile(hProof);
return 1;
}
mng_cmsprof mnglcms_creatememprofile (mng_uint32 iProfilesize,
mng_ptr pProfile)
{
return cmsOpenProfileFromMem (pProfile, iProfilesize);
}
static cmsHPROFILE
cdisplay_lcms_get_display_profile (CdisplayLcms *lcms)
{
GimpColorConfig *config;
cmsHPROFILE profile = NULL;
config = gimp_color_display_get_config (GIMP_COLOR_DISPLAY (lcms));
#if defined GDK_WINDOWING_X11
if (config->display_profile_from_gdk)
{
GdkScreen *screen;
GdkAtom type = GDK_NONE;
gint format = 0;
gint nitems = 0;
gint monitor = 0;
gchar *atom_name;
guchar *data = NULL;
screen = cdisplay_lcms_get_screen (lcms, &monitor);
if (monitor > 0)
atom_name = g_strdup_printf ("_ICC_PROFILE_%d", monitor);
else
atom_name = g_strdup ("_ICC_PROFILE");
if (gdk_property_get (gdk_screen_get_root_window (screen),
gdk_atom_intern (atom_name, FALSE),
GDK_NONE,
0, 64 * 1024 * 1024, FALSE,
&type, &format, &nitems, &data) && nitems > 0)
{
profile = cmsOpenProfileFromMem (data, nitems);
g_free (data);
}
g_free (atom_name);
}
#elif defined GDK_WINDOWING_QUARTZ
if (config->display_profile_from_gdk)
{
CMProfileRef prof = NULL;
gint monitor = 0;
cdisplay_lcms_get_screen (lcms, &monitor);
CMGetProfileByAVID (monitor, &prof);
if (prof)
{
CFDataRef data;
data = CMProfileCopyICCData (NULL, prof);
CMCloseProfile (prof);
if (data)
{
UInt8 *buffer = g_malloc (CFDataGetLength (data));
/* We cannot use CFDataGetBytesPtr(), because that returns
* a const pointer where cmsOpenProfileFromMem wants a
* non-const pointer.
*/
CFDataGetBytes (data, CFRangeMake (0, CFDataGetLength (data)),
buffer);
profile = cmsOpenProfileFromMem (buffer, CFDataGetLength (data));
g_free (buffer);
CFRelease (data);
}
}
}
#elif defined G_OS_WIN32
if (config->display_profile_from_gdk)
{
HDC hdc = GetDC (NULL);
if (hdc)
{
gchar *path;
gint32 len = 0;
GetICMProfile (hdc, &len, NULL);
path = g_new (gchar, len);
if (GetICMProfile (hdc, &len, path))
profile = cmsOpenProfileFromFile (path, "r");
g_free (path);
ReleaseDC (NULL, hdc);
}
}
#endif
if (! profile && config->display_profile)
profile = cmsOpenProfileFromFile (config->display_profile, "r");
return profile;
}
static
cmsHPROFILE GetTIFFProfile(TIFF* in)
{
cmsCIExyYTRIPLE Primaries;
float* chr;
cmsCIExyY WhitePoint;
float* wp;
int i;
LPGAMMATABLE Gamma[3];
LPWORD gmr, gmg, gmb;
cmsHPROFILE hProfile;
DWORD EmbedLen;
LPBYTE EmbedBuffer;
if (IgnoreEmbedded) return NULL;
if (TIFFGetField(in, TIFFTAG_ICCPROFILE, &EmbedLen, &EmbedBuffer)) {
hProfile = cmsOpenProfileFromMem(EmbedBuffer, EmbedLen);
if (Verbose) {
fprintf(stdout, " (Embedded profile found)\n");
fprintf(stdout, "Product name: %s\n", cmsTakeProductName(hProfile));
fprintf(stdout, "Description : %s\n", cmsTakeProductDesc(hProfile));
fflush(stdout);
}
if (hProfile != NULL && SaveEmbedded != NULL)
SaveMemoryBlock(EmbedBuffer, EmbedLen, SaveEmbedded);
if (hProfile) return hProfile;
}
// Try to see if "colorimetric" tiff
if (TIFFGetField(in, TIFFTAG_PRIMARYCHROMATICITIES, &chr)) {
Primaries.Red.x = chr[0];
Primaries.Red.y = chr[1];
Primaries.Green.x = chr[2];
Primaries.Green.y = chr[3];
Primaries.Blue.x = chr[4];
Primaries.Blue.y = chr[5];
Primaries.Red.Y = Primaries.Green.Y = Primaries.Blue.Y = 1.0;
if (TIFFGetField(in, TIFFTAG_WHITEPOINT, &wp)) {
WhitePoint.x = wp[0];
WhitePoint.y = wp[1];
WhitePoint.Y = 1.0;
// Transferfunction is a bit harder....
for (i=0; i < 3; i++)
Gamma[i] = cmsAllocGamma(256);
TIFFGetFieldDefaulted(in, TIFFTAG_TRANSFERFUNCTION,
&gmr,
&gmg,
&gmb);
CopyMemory(Gamma[0]->GammaTable, gmr, 256*sizeof(WORD));
CopyMemory(Gamma[1]->GammaTable, gmg, 256*sizeof(WORD));
CopyMemory(Gamma[2]->GammaTable, gmb, 256*sizeof(WORD));
hProfile = cmsCreateRGBProfile(&WhitePoint, &Primaries, Gamma);
for (i=0; i < 3; i++)
cmsFreeGamma(Gamma[i]);
if (Verbose) {
fprintf(stdout, " (Colorimetric TIFF)\n");
}
return hProfile;
}
}
return NULL;
}
PyObject *
load_png_fast_progressive (char *filename,
PyObject *get_buffer_callback)
{
// Note: we are not using the method that libpng calls "Reading PNG
// files progressively". That method would involve feeding the data
// into libpng piece by piece, which is not necessary if we can give
// libpng a simple FILE pointer.
png_structp png_ptr = NULL;
png_infop info_ptr = NULL;
PyObject * result = NULL;
FILE *fp = NULL;
uint32_t width, height;
uint32_t rows_left;
png_byte color_type;
png_byte bit_depth;
bool have_alpha;
char *cm_processing = NULL;
// ICC profile-based colour conversion data.
png_charp icc_profile_name = NULL;
int icc_compression_type = 0;
#if PNG_LIBPNG_VER < 10500 // 1.5.0beta36, according to libpng CHANGES
png_charp icc_profile = NULL;
#else
png_bytep icc_profile = NULL;
#endif
png_uint_32 icc_proflen = 0;
// The sRGB flag has an intent field, which we ignore -
// the target gamut is sRGB already.
int srgb_intent = 0;
// Generic RGB space conversion params.
// The assumptions we're making are those of sRGB,
// but they'll be overridden by gammas or primaries in the file if used.
bool generic_rgb_have_gAMA = false;
bool generic_rgb_have_cHRM = false;
double generic_rgb_file_gamma = 45455 / PNG_gAMA_scale;
double generic_rgb_white_x = 31270 / PNG_cHRM_scale;
double generic_rgb_white_y = 32900 / PNG_cHRM_scale;
double generic_rgb_red_x = 64000 / PNG_cHRM_scale;
double generic_rgb_red_y = 33000 / PNG_cHRM_scale;
double generic_rgb_green_x = 30000 / PNG_cHRM_scale;
double generic_rgb_green_y = 60000 / PNG_cHRM_scale;
double generic_rgb_blue_x = 15000 / PNG_cHRM_scale;
double generic_rgb_blue_y = 6000 / PNG_cHRM_scale;
// Indicates the case where no CM information was present in the file and we
// treated it as sRGB.
bool possible_legacy_png = false;
// LCMS stuff
cmsHPROFILE input_buffer_profile = NULL;
cmsHPROFILE nparray_data_profile = cmsCreate_sRGBProfile();
cmsHTRANSFORM input_buffer_to_nparray = NULL;
cmsToneCurve *gamma_transfer_func = NULL;
cmsUInt32Number input_buffer_format = 0;
cmsSetLogErrorHandler(log_lcms2_error);
fp = fopen(filename, "rb");
if (!fp) {
PyErr_SetFromErrno(PyExc_IOError);
//PyErr_Format(PyExc_IOError, "Could not open PNG file for writing: %s",
// filename);
goto cleanup;
}
png_ptr = png_create_read_struct (PNG_LIBPNG_VER_STRING, (png_voidp)NULL,
png_read_error_callback, NULL);
if (!png_ptr) {
PyErr_SetString(PyExc_MemoryError, "png_create_write_struct() failed");
goto cleanup;
}
info_ptr = png_create_info_struct(png_ptr);
if (!info_ptr) {
PyErr_SetString(PyExc_MemoryError, "png_create_info_struct() failed");
goto cleanup;
}
if (setjmp(png_jmpbuf(png_ptr))) {
goto cleanup;
}
png_init_io(png_ptr, fp);
png_read_info(png_ptr, info_ptr);
// If there's an embedded ICC profile, use it in preference to any other
// colour management information present.
if (png_get_iCCP (png_ptr, info_ptr, &icc_profile_name,
&icc_compression_type, &icc_profile,
&icc_proflen))
{
input_buffer_profile = cmsOpenProfileFromMem(icc_profile, icc_proflen);
if (! input_buffer_profile) {
PyErr_SetString(PyExc_MemoryError, "cmsOpenProfileFromMem() failed");
goto cleanup;
}
cm_processing = "iCCP (use embedded colour profile)";
}
// Shorthand for sRGB.
else if (png_get_sRGB (png_ptr, info_ptr, &srgb_intent)) {
input_buffer_profile = cmsCreate_sRGBProfile();
cm_processing = "sRGB (explicit sRGB chunk)";
}
else {
// We might have generic RGB transformation information in the form of
// the chromaticities for R, G and B and a generic gamma curve.
if (png_get_cHRM (png_ptr, info_ptr,
&generic_rgb_white_x, &generic_rgb_white_y,
&generic_rgb_red_x, &generic_rgb_red_y,
&generic_rgb_green_x, &generic_rgb_green_y,
&generic_rgb_blue_x, &generic_rgb_blue_y))
{
generic_rgb_have_cHRM = true;
}
if (png_get_gAMA(png_ptr, info_ptr, &generic_rgb_file_gamma)) {
generic_rgb_have_gAMA = true;
}
if (generic_rgb_have_gAMA || generic_rgb_have_cHRM) {
cmsCIExyYTRIPLE primaries = {{generic_rgb_red_x, generic_rgb_red_y},
{generic_rgb_green_x, generic_rgb_green_y},
{generic_rgb_blue_x, generic_rgb_blue_y}};
cmsCIExyY white_point = {generic_rgb_white_x, generic_rgb_white_y};
gamma_transfer_func = cmsBuildGamma(NULL, 1.0/generic_rgb_file_gamma);
cmsToneCurve *transfer_funcs[3] = {gamma_transfer_func,
gamma_transfer_func,
gamma_transfer_func };
input_buffer_profile = cmsCreateRGBProfile(&white_point, &primaries,
transfer_funcs);
cm_processing = "cHRM and/or gAMA (generic RGB space)";
}
// Possible legacy PNG, or rather one which might have been written with an
// old version of MyPaint. Treat as sRGB, but flag the strangeness because
// it might be important for PNGs in old OpenRaster files.
else {
possible_legacy_png = true;
input_buffer_profile = cmsCreate_sRGBProfile();
cm_processing = "sRGB (no CM chunks present)";
}
}
if (png_get_interlace_type (png_ptr, info_ptr) != PNG_INTERLACE_NONE) {
PyErr_SetString(PyExc_RuntimeError,
"Interlaced PNG files are not supported!");
goto cleanup;
}
color_type = png_get_color_type(png_ptr, info_ptr);
bit_depth = png_get_bit_depth(png_ptr, info_ptr);
have_alpha = color_type & PNG_COLOR_MASK_ALPHA;
if (color_type == PNG_COLOR_TYPE_PALETTE) {
png_set_palette_to_rgb(png_ptr);
}
if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8) {
png_set_expand_gray_1_2_4_to_8(png_ptr);
}
if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)) {
png_set_tRNS_to_alpha(png_ptr);
have_alpha = true;
}
if (bit_depth < 8) {
png_set_packing(png_ptr);
}
if (!have_alpha) {
png_set_add_alpha(png_ptr, 0xFF, PNG_FILLER_AFTER);
}
if (color_type == PNG_COLOR_TYPE_GRAY ||
color_type == PNG_COLOR_TYPE_GRAY_ALPHA) {
png_set_gray_to_rgb(png_ptr);
}
png_read_update_info(png_ptr, info_ptr);
// Verify what we have done
bit_depth = png_get_bit_depth(png_ptr, info_ptr);
if (! (bit_depth == 8 || bit_depth == 16)) {
PyErr_SetString(PyExc_RuntimeError, "Failed to convince libpng to convert "
"to 8 or 16 bits per channel");
goto cleanup;
}
if (png_get_color_type(png_ptr, info_ptr) != PNG_COLOR_TYPE_RGB_ALPHA) {
PyErr_SetString(PyExc_RuntimeError, "Failed to convince libpng to convert "
"to RGBA (wrong color_type)");
goto cleanup;
}
if (png_get_channels(png_ptr, info_ptr) != 4) {
PyErr_SetString(PyExc_RuntimeError, "Failed to convince libpng to convert "
"to RGBA (wrong number of channels)");
goto cleanup;
}
// PNGs use network byte order, i.e. big-endian in descending order
// of bit significance. LittleCMS uses whatever's detected for the compiler.
// ref: http://www.w3.org/TR/2003/REC-PNG-20031110/#7Integers-and-byte-order
if (bit_depth == 16) {
#ifdef CMS_USE_BIG_ENDIAN
input_buffer_format = TYPE_RGBA_16;
#else
input_buffer_format = TYPE_RGBA_16_SE;
#endif
}
else {
input_buffer_format = TYPE_RGBA_8;
}
input_buffer_to_nparray = cmsCreateTransform
(input_buffer_profile, input_buffer_format,
nparray_data_profile, TYPE_RGBA_8,
INTENT_PERCEPTUAL, 0);
width = png_get_image_width(png_ptr, info_ptr);
height = png_get_image_height(png_ptr, info_ptr);
rows_left = height;
while (rows_left) {
PyObject *pyarr = NULL;
uint32_t rows = 0;
uint32_t row = 0;
const uint8_t input_buf_bytes_per_pixel = (bit_depth==8) ? 4 : 8;
const uint32_t input_buf_row_stride = sizeof(png_byte) * width
* input_buf_bytes_per_pixel;
png_byte *input_buffer = NULL;
png_bytep *input_buf_row_pointers = NULL;
pyarr = PyObject_CallFunction(get_buffer_callback, "ii", width, height);
if (! pyarr) {
PyErr_Format(PyExc_RuntimeError, "Get-buffer callback failed");
goto cleanup;
}
#ifdef HEAVY_DEBUG
//assert(PyArray_ISCARRAY(arr));
assert(PyArray_NDIM(pyarr) == 3);
assert(PyArray_DIM(pyarr, 1) == width);
assert(PyArray_DIM(pyarr, 2) == 4);
assert(PyArray_TYPE(pyarr) == NPY_UINT8);
assert(PyArray_ISBEHAVED(pyarr));
assert(PyArray_STRIDE(pyarr, 1) == 4*sizeof(uint8_t));
assert(PyArray_STRIDE(pyarr, 2) == sizeof(uint8_t));
#endif
rows = PyArray_DIM(pyarr, 0);
if (rows > rows_left) {
PyErr_Format(PyExc_RuntimeError,
"Attempt to read %d rows from the PNG, "
"but only %d are left",
rows, rows_left);
goto cleanup;
}
input_buffer = (png_byte *) malloc(rows * input_buf_row_stride);
input_buf_row_pointers = (png_bytep *)malloc(rows * sizeof(png_bytep));
for (row=0; row<rows; row++) {
input_buf_row_pointers[row] = input_buffer + (row * input_buf_row_stride);
}
png_read_rows(png_ptr, input_buf_row_pointers, NULL, rows);
rows_left -= rows;
for (row=0; row<rows; row++) {
uint8_t *pyarr_row = (uint8_t *)PyArray_DATA(pyarr)
+ row*PyArray_STRIDE(pyarr, 0);
uint8_t *input_row = input_buf_row_pointers[row];
// Really minimal fake colour management. Just remaps to sRGB.
cmsDoTransform(input_buffer_to_nparray, input_row, pyarr_row, width);
// lcms2 ignores alpha, so copy that verbatim
// If it's 8bpc RGBA, use A.
// If it's 16bpc RrGgBbAa, use A.
for (uint32_t i=0; i<width; ++i) {
const uint32_t pyarr_alpha_byte = (i*4) + 3;
const uint32_t buf_alpha_byte = (i*input_buf_bytes_per_pixel)
+ ((bit_depth==8) ? 3 : 6);
pyarr_row[pyarr_alpha_byte] = input_row[buf_alpha_byte];
}
}
free(input_buf_row_pointers);
free(input_buffer);
Py_DECREF(pyarr);
}
png_read_end(png_ptr, NULL);
result = Py_BuildValue("{s:b,s:i,s:i,s:s}",
"possible_legacy_png", possible_legacy_png,
"width", width,
"height", height,
"cm_conversions_applied", cm_processing);
cleanup:
if (info_ptr) png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
// libpng's style is to free internally allocated stuff like the icc
// tables in png_destroy_*(). I think.
if (fp) fclose(fp);
if (input_buffer_profile) cmsCloseProfile(input_buffer_profile);
if (nparray_data_profile) cmsCloseProfile(nparray_data_profile);
if (input_buffer_to_nparray) cmsDeleteTransform(input_buffer_to_nparray);
if (gamma_transfer_func) cmsFreeToneCurve(gamma_transfer_func);
return result;
}
cmsHPROFILE
dt_colorspaces_create_output_profile(const int imgid)
{
char profile[1024];
profile[0] = '\0';
// db lookup colorout params, and dt_conf_() for override
gchar *overprofile = dt_conf_get_string("plugins/lighttable/export/iccprofile");
if(!overprofile || !strcmp(overprofile, "image"))
{
const dt_iop_colorout_params_t *params;
// sqlite:
sqlite3_stmt *stmt;
DT_DEBUG_SQLITE3_PREPARE_V2(dt_database_get(darktable.db), "select op_params from history where imgid=?1 and operation='colorout'", -1, &stmt, NULL);
DT_DEBUG_SQLITE3_BIND_INT(stmt, 1, imgid);
if(sqlite3_step(stmt) == SQLITE_ROW)
{
params = sqlite3_column_blob(stmt, 0);
g_strlcpy(profile, params->iccprofile, 1024);
}
sqlite3_finalize(stmt);
}
if(!overprofile && profile[0] == '\0')
{
g_strlcpy(profile, "sRGB", 1024);
}
else if(profile[0] == '\0')
{
g_strlcpy(profile, overprofile, 1024);
}
if(overprofile)
{
g_free(overprofile);
}
cmsHPROFILE output = NULL;
if(!strcmp(profile, "sRGB"))
output = dt_colorspaces_create_srgb_profile();
else if(!strcmp(profile, "linear_rgb"))
output = dt_colorspaces_create_linear_rgb_profile();
else if(!strcmp(profile, "XYZ"))
output = dt_colorspaces_create_xyz_profile();
else if(!strcmp(profile, "adobergb"))
output = dt_colorspaces_create_adobergb_profile();
else if(!strcmp(profile, "X profile"))
{
pthread_rwlock_rdlock(&darktable.control->xprofile_lock);
if(darktable.control->xprofile_data)
output = cmsOpenProfileFromMem(darktable.control->xprofile_data, darktable.control->xprofile_size);
pthread_rwlock_unlock(&darktable.control->xprofile_lock);
}
else
{
// else: load file name
char filename[DT_MAX_PATH_LEN];
dt_colorspaces_find_profile(filename, DT_MAX_PATH_LEN, profile, "out");
output = cmsOpenProfileFromFile(filename, "r");
}
if(!output) output = dt_colorspaces_create_srgb_profile();
return output;
}
void CLASS apply_profile (const char *input, const char *output)
{
char *prof;
cmsHPROFILE hInProfile=0, hOutProfile=0;
cmsHTRANSFORM hTransform;
FILE *fp;
unsigned size;
#ifndef USE_LCMS2
cmsErrorAction (LCMS_ERROR_SHOW);
#endif
if (strcmp (input, "embed"))
hInProfile = cmsOpenProfileFromFile (input, "r");
else if (profile_length) {
#ifndef LIBRAW_LIBRARY_BUILD
prof = (char *) malloc (profile_length);
merror (prof, "apply_profile()");
fseek (ifp, profile_offset, SEEK_SET);
fread (prof, 1, profile_length, ifp);
hInProfile = cmsOpenProfileFromMem (prof, profile_length);
free (prof);
#else
hInProfile = cmsOpenProfileFromMem (imgdata.color.profile, profile_length);
#endif
} else
{
#ifdef LIBRAW_LIBRARY_BUILD
imgdata.process_warnings |= LIBRAW_WARN_NO_EMBEDDED_PROFILE;
#endif
#ifdef DCRAW_VERBOSE
fprintf (stderr,_("%s has no embedded profile.\n"), ifname);
#endif
}
if (!hInProfile)
{
#ifdef LIBRAW_LIBRARY_BUILD
imgdata.process_warnings |= LIBRAW_WARN_NO_INPUT_PROFILE;
#endif
return;
}
if (!output)
hOutProfile = cmsCreate_sRGBProfile();
else if ((fp = fopen (output, "rb"))) {
fread (&size, 4, 1, fp);
fseek (fp, 0, SEEK_SET);
oprof = (unsigned *) malloc (size = ntohl(size));
merror (oprof, "apply_profile()");
fread (oprof, 1, size, fp);
fclose (fp);
if (!(hOutProfile = cmsOpenProfileFromMem (oprof, size))) {
free (oprof);
oprof = 0;
}
}
#ifdef DCRAW_VERBOSE
else
fprintf (stderr,_("Cannot open file %s!\n"), output);
#endif
if (!hOutProfile)
{
#ifdef LIBRAW_LIBRARY_BUILD
imgdata.process_warnings |= LIBRAW_WARN_BAD_OUTPUT_PROFILE;
#endif
goto quit;
}
#ifdef DCRAW_VERBOSE
if (verbose)
fprintf (stderr,_("Applying color profile...\n"));
#endif
#ifdef LIBRAW_LIBRARY_BUILD
RUN_CALLBACK(LIBRAW_PROGRESS_APPLY_PROFILE,0,2);
#endif
hTransform = cmsCreateTransform (hInProfile, TYPE_RGBA_16,
hOutProfile, TYPE_RGBA_16, INTENT_PERCEPTUAL, 0);
cmsDoTransform (hTransform, image, image, width*height);
raw_color = 1; /* Don't use rgb_cam with a profile */
cmsDeleteTransform (hTransform);
cmsCloseProfile (hOutProfile);
quit:
cmsCloseProfile (hInProfile);
#ifdef LIBRAW_LIBRARY_BUILD
RUN_CALLBACK(LIBRAW_PROGRESS_APPLY_PROFILE,1,2);
#endif
}
static
int TransformImage(char *cDefInpProf, char *cOutProf)
{
cmsHPROFILE hIn, hOut, hProof;
cmsHTRANSFORM xform;
DWORD wInput, wOutput;
int OutputColorSpace;
DWORD dwFlags = 0;
DWORD EmbedLen;
LPBYTE EmbedBuffer;
if (BlackPointCompensation) {
dwFlags |= cmsFLAGS_BLACKPOINTCOMPENSATION;
}
switch (PrecalcMode) {
case 0: dwFlags |= cmsFLAGS_NOTPRECALC; break;
case 2: dwFlags |= cmsFLAGS_HIGHRESPRECALC; break;
case 3: dwFlags |= cmsFLAGS_LOWRESPRECALC; break;
default:;
}
if (GamutCheck)
dwFlags |= cmsFLAGS_GAMUTCHECK;
if (lIsDeviceLink) {
hIn = cmsOpenProfileFromFile(cDefInpProf, "r");
hOut = NULL;
hProof = NULL;
}
else {
if (!IgnoreEmbedded && read_icc_profile(&Decompressor, &EmbedBuffer, &EmbedLen))
{
hIn = cmsOpenProfileFromMem(EmbedBuffer, EmbedLen);
if (Verbose) {
fprintf(stdout, " (Embedded profile found)\n");
fprintf(stdout, "Product name: %s\n", cmsTakeProductName(hIn));
fprintf(stdout, "Description : %s\n", cmsTakeProductDesc(hIn));
fflush(stdout);
}
if (hIn != NULL && SaveEmbedded != NULL)
SaveMemoryBlock(EmbedBuffer, EmbedLen, SaveEmbedded);
free(EmbedBuffer);
}
else
{
hIn = OpenStockProfile(cDefInpProf);
}
hOut = OpenStockProfile(cOutProf);
hProof = NULL;
if (cProofing != NULL) {
hProof = OpenStockProfile(cProofing);
}
}
// Take input color space
wInput = GetInputPixelType();
// Assure both, input profile and input JPEG are on same colorspace
if (cmsGetColorSpace(hIn) != _cmsICCcolorSpace(T_COLORSPACE(wInput)))
FatalError("Input profile is not operating in proper color space");
// Output colorspace is given by output profile
if (lIsDeviceLink) {
OutputColorSpace = T_COLORSPACE(wInput);
}
else {
OutputColorSpace = GetProfileColorSpace(hOut);
}
jpeg_copy_critical_parameters(&Decompressor, &Compressor);
WriteOutputFields(OutputColorSpace);
wOutput = ComputeOutputFormatDescriptor(wInput, OutputColorSpace);
xform = cmsCreateProofingTransform(hIn, wInput,
hOut, wOutput,
hProof, Intent,
ProofingIntent, dwFlags);
// Handle tile by tile or strip by strip strtok
DoTransform(xform);
jcopy_markers_execute(&Decompressor, &Compressor);
cmsDeleteTransform(xform);
cmsCloseProfile(hIn);
cmsCloseProfile(hOut);
if (hProof) cmsCloseProfile(hProof);
return 1;
}
static gpointer
jpeg_load_cmyk_transform (guint8 *profile_data,
gsize profile_len)
{
GimpColorConfig *config = gimp_get_color_configuration ();
cmsHPROFILE cmyk_profile = NULL;
cmsHPROFILE rgb_profile = NULL;
cmsUInt32Number flags = 0;
cmsHTRANSFORM transform;
/* try to load the embedded CMYK profile */
if (profile_data)
{
cmyk_profile = cmsOpenProfileFromMem (profile_data, profile_len);
if (cmyk_profile)
{
if (! gimp_lcms_profile_is_cmyk (cmyk_profile))
{
cmsCloseProfile (cmyk_profile);
cmyk_profile = NULL;
}
}
}
/* if that fails, try to load the CMYK profile configured in the prefs */
if (! cmyk_profile && config->cmyk_profile)
{
cmyk_profile = cmsOpenProfileFromFile (config->cmyk_profile, "r");
if (cmyk_profile && ! gimp_lcms_profile_is_cmyk (cmyk_profile))
{
cmsCloseProfile (cmyk_profile);
cmyk_profile = NULL;
}
}
/* bail out if we can't load any CMYK profile */
if (! cmyk_profile)
{
g_object_unref (config);
return NULL;
}
/* try to load the RGB profile configured in the prefs */
if (config->rgb_profile)
{
rgb_profile = cmsOpenProfileFromFile (config->rgb_profile, "r");
if (rgb_profile && ! gimp_lcms_profile_is_rgb (rgb_profile))
{
cmsCloseProfile (rgb_profile);
rgb_profile = NULL;
}
}
/* make the real sRGB profile as a fallback */
if (! rgb_profile)
{
rgb_profile = gimp_lcms_create_srgb_profile ();
}
if (config->display_intent ==
GIMP_COLOR_RENDERING_INTENT_RELATIVE_COLORIMETRIC)
{
flags |= cmsFLAGS_BLACKPOINTCOMPENSATION;
}
transform = cmsCreateTransform (cmyk_profile, TYPE_CMYK_8_REV,
rgb_profile, TYPE_RGB_8,
config->display_intent,
flags);
cmsCloseProfile (cmyk_profile);
cmsCloseProfile (rgb_profile);
g_object_unref (config);
return transform;
}
cmsHPROFILE dkCmsOpenProfileFromMem(LPVOID MemPtr, DWORD dwSize)
{
return cmsOpenProfileFromMem(MemPtr, static_cast<cmsUInt32Number>( dwSize ));
}
bool LcmsColorProfileContainer::init()
{
if (d->profile) {
cmsCloseProfile(d->profile);
}
d->profile = cmsOpenProfileFromMem((void *)d->data->rawData().constData(), d->data->rawData().size());
#ifndef NDEBUG
if (d->data->rawData().size() == 4096) {
qWarning() << "Profile has a size of 4096, which is suspicious and indicates a possible misuse of QIODevice::read(int), check your code.";
}
#endif
if (d->profile) {
wchar_t buffer[_BUFFER_SIZE_];
d->colorSpaceSignature = cmsGetColorSpace(d->profile);
d->deviceClass = cmsGetDeviceClass(d->profile);
cmsGetProfileInfo(d->profile, cmsInfoDescription, cmsNoLanguage, cmsNoCountry, buffer, _BUFFER_SIZE_);
d->name = QString::fromWCharArray(buffer);
//apparantly this should give us a localised string??? Not sure about this.
cmsGetProfileInfo(d->profile, cmsInfoModel, cmsNoLanguage, cmsNoCountry, buffer, _BUFFER_SIZE_);
d->productDescription = QString::fromWCharArray(buffer);
cmsGetProfileInfo(d->profile, cmsInfoManufacturer, cmsNoLanguage, cmsNoCountry, buffer, _BUFFER_SIZE_);
d->manufacturer = QString::fromWCharArray(buffer);
cmsGetProfileInfo(d->profile, cmsInfoCopyright, cmsNoLanguage, cmsNoCountry, buffer, _BUFFER_SIZE_);
d->copyright = QString::fromWCharArray(buffer);
cmsProfileClassSignature profile_class;
profile_class = cmsGetDeviceClass(d->profile);
d->valid = (profile_class != cmsSigNamedColorClass);
//This is where obtain the whitepoint, and convert it to the actual white point of the profile in the case a Chromatic adaption tag is
//present. This is necessary for profiles following the v4 spec.
cmsCIEXYZ baseMediaWhitePoint;//dummy to hold copy of mediawhitepoint if this is modified by chromatic adaption.
if (cmsIsTag(d->profile, cmsSigMediaWhitePointTag)) {
d->mediaWhitePoint = *((cmsCIEXYZ *)cmsReadTag(d->profile, cmsSigMediaWhitePointTag));
baseMediaWhitePoint = d->mediaWhitePoint;
cmsXYZ2xyY(&d->whitePoint, &d->mediaWhitePoint);
if (cmsIsTag(d->profile, cmsSigChromaticAdaptationTag)) {
//the chromatic adaption tag represent a matrix from the actual white point of the profile to D50.
cmsCIEXYZ *CAM1 = (cmsCIEXYZ *)cmsReadTag(d->profile, cmsSigChromaticAdaptationTag);
//We first put all our data into structures we can manipulate.
double d3dummy [3] = {d->mediaWhitePoint.X, d->mediaWhitePoint.Y, d->mediaWhitePoint.Z};
QGenericMatrix<1, 3, double> whitePointMatrix(d3dummy);
QTransform invertDummy(CAM1[0].X, CAM1[0].Y, CAM1[0].Z, CAM1[1].X, CAM1[1].Y, CAM1[1].Z, CAM1[2].X, CAM1[2].Y, CAM1[2].Z);
//we then abuse QTransform's invert function because it probably does matrix invertion 20 times better than I can program.
//if the matrix is uninvertable, invertedDummy will be an identity matrix, which for us means that it won't give any noticeble
//effect when we start multiplying.
QTransform invertedDummy = invertDummy.inverted();
//we then put the QTransform into a generic 3x3 matrix.
double d9dummy [9] = {invertedDummy.m11(), invertedDummy.m12(), invertedDummy.m13(),
invertedDummy.m21(), invertedDummy.m22(), invertedDummy.m23(),
invertedDummy.m31(), invertedDummy.m32(), invertedDummy.m33()
};
QGenericMatrix<3, 3, double> chromaticAdaptionMatrix(d9dummy);
//multiplying our inverted adaption matrix with the whitepoint gives us the right whitepoint.
QGenericMatrix<1, 3, double> result = chromaticAdaptionMatrix * whitePointMatrix;
//and then we pour the matrix into the whitepoint variable. Generic matrix does row/column for indices even though it
//uses column/row for initialising.
d->mediaWhitePoint.X = result(0, 0);
d->mediaWhitePoint.Y = result(1, 0);
d->mediaWhitePoint.Z = result(2, 0);
cmsXYZ2xyY(&d->whitePoint, &d->mediaWhitePoint);
}
}
//This is for RGB profiles, but it only works for matrix profiles. Need to design it to work with non-matrix profiles.
if (cmsIsTag(d->profile, cmsSigRedColorantTag)) {
cmsCIEXYZTRIPLE tempColorants;
tempColorants.Red = *((cmsCIEXYZ *)cmsReadTag(d->profile, cmsSigRedColorantTag));
tempColorants.Green = *((cmsCIEXYZ *)cmsReadTag(d->profile, cmsSigGreenColorantTag));
tempColorants.Blue = *((cmsCIEXYZ *)cmsReadTag(d->profile, cmsSigBlueColorantTag));
//convert to d65, this is useless.
cmsAdaptToIlluminant(&d->colorants.Red, &baseMediaWhitePoint, &d->mediaWhitePoint, &tempColorants.Red);
cmsAdaptToIlluminant(&d->colorants.Green, &baseMediaWhitePoint, &d->mediaWhitePoint, &tempColorants.Green);
cmsAdaptToIlluminant(&d->colorants.Blue, &baseMediaWhitePoint, &d->mediaWhitePoint, &tempColorants.Blue);
//d->colorants = tempColorants;
d->hasColorants = true;
} else {
//qDebug()<<d->name<<": has no colorants";
d->hasColorants = false;
}
//retrieve TRC.
if (cmsIsTag(d->profile, cmsSigRedTRCTag) && cmsIsTag(d->profile, cmsSigBlueTRCTag) && cmsIsTag(d->profile, cmsSigGreenTRCTag)) {
d->redTRC = ((cmsToneCurve *)cmsReadTag (d->profile, cmsSigRedTRCTag));
d->greenTRC = ((cmsToneCurve *)cmsReadTag (d->profile, cmsSigGreenTRCTag));
d->blueTRC = ((cmsToneCurve *)cmsReadTag (d->profile, cmsSigBlueTRCTag));
d->redTRCReverse = cmsReverseToneCurve(d->redTRC);
d->greenTRCReverse = cmsReverseToneCurve(d->greenTRC);
d->blueTRCReverse = cmsReverseToneCurve(d->blueTRC);
d->hasTRC = true;
} else if (cmsIsTag(d->profile, cmsSigGrayTRCTag)) {
d->grayTRC = ((cmsToneCurve *)cmsReadTag (d->profile, cmsSigGrayTRCTag));
d->grayTRCReverse = cmsReverseToneCurve(d->grayTRC);
d->hasTRC = true;
} else {
d->hasTRC = false;
}
// Check if the profile can convert (something->this)
d->suitableForOutput = cmsIsMatrixShaper(d->profile)
|| (cmsIsCLUT(d->profile, INTENT_PERCEPTUAL, LCMS_USED_AS_INPUT) &&
cmsIsCLUT(d->profile, INTENT_PERCEPTUAL, LCMS_USED_AS_OUTPUT));
d->version = cmsGetProfileVersion(d->profile);
d->defaultIntent = cmsGetHeaderRenderingIntent(d->profile);
d->isMatrixShaper = cmsIsMatrixShaper(d->profile);
d->isPerceptualCLUT = cmsIsCLUT(d->profile, INTENT_PERCEPTUAL, LCMS_USED_AS_INPUT);
d->isSaturationCLUT = cmsIsCLUT(d->profile, INTENT_SATURATION, LCMS_USED_AS_INPUT);
d->isAbsoluteCLUT = cmsIsCLUT(d->profile, INTENT_SATURATION, LCMS_USED_AS_INPUT);
d->isRelativeCLUT = cmsIsCLUT(d->profile, INTENT_RELATIVE_COLORIMETRIC, LCMS_USED_AS_INPUT);
return true;
}
return false;
}
/* Get ICC Profile handle from buffer */
gcmmhprofile_t
gscms_get_profile_handle_mem(unsigned char *buffer, unsigned int input_size)
{
cmsSetErrorHandler((cmsErrorHandlerFunction) gscms_error);
return(cmsOpenProfileFromMem(buffer,input_size));
}
static cmsHPROFILE color_man_create_adobe_comp(void)
{
/* ClayRGB1998 is AdobeRGB compatible */
#include "ClayRGB1998_icc.h"
return cmsOpenProfileFromMem(ClayRGB1998_icc, ClayRGB1998_icc_len);
}
