void GetCDLTransforms(CDLTransformMap & transformMap,
CDLTransformVec & transformVec,
TiXmlElement * cccRootElement)
{
if(!cccRootElement)
{
std::ostringstream os;
os << "GetCDLTransforms Error. ";
os << "Null cccRootElement.";
throw Exception(os.str().c_str());
}
if(std::string(cccRootElement->Value()) != "ColorCorrectionCollection")
{
std::ostringstream os;
os << "GetCDLTransforms Error. ";
os << "Root element is type '" << cccRootElement->Value() << "', ";
os << "ColorCorrectionCollection expected.";
throw Exception(os.str().c_str());
}
TiXmlNode * child = cccRootElement->FirstChild("ColorCorrection");
while(child)
{
CDLTransformRcPtr transform = CDLTransform::Create();
LoadCDL(transform.get(), child->ToElement());
transformVec.push_back(transform);
std::string id = transform->getID();
if(!id.empty())
{
CDLTransformMap::iterator iter = transformMap.find(id);
if(iter != transformMap.end())
{
std::ostringstream os;
os << "Error loading ccc xml. ";
os << "Duplicate elements with '" << id << "' found. ";
os << "If id is specified, it must be unique.";
throw Exception(os.str().c_str());
}
transformMap[id] = transform;
}
child = child->NextSibling("ColorCorrection");
}
}
void GetCDLTransforms(CDLTransformMap & transforms,
TiXmlElement * cccRootElement)
{
if(std::string(cccRootElement->Value()) != "ColorCorrectionCollection")
{
std::ostringstream os;
os << "GetCDLTransforms Error. ";
os << "Root element is type '" << cccRootElement->Value() << "', ";
os << "ColorCorrectionCollection expected.";
throw Exception(os.str().c_str());
}
TiXmlNode * child = cccRootElement->FirstChild("ColorCorrection");
while(child)
{
CDLTransformRcPtr transform = CDLTransform::Create();
LoadCDL(transform.get(), child->ToElement());
std::string id = transform->getID();
if(id.empty())
{
std::ostringstream os;
os << "Error loading ccc xml, ";
os << "All ASC ColorCorrections must specify an 'id' value.";
throw Exception(os.str().c_str());
}
CDLTransformMap::iterator iter = transforms.find(id);
if(iter != transforms.end())
{
std::ostringstream os;
os << "Error loading ccc xml. ";
os << "All ASC ColorCorrections must specify a unique 'id' value. ";
os << "Duplicate elements with '" << id << "' found.";
throw Exception(os.str().c_str());
}
transforms[id] = transform;
child = child->NextSibling("ColorCorrection");
}
}
CDLTransformRcPtr CDLTransform::CreateFromFile(const char * src, const char * cccid_)
{
if(!src || (strlen(src) == 0) )
{
std::ostringstream os;
os << "Error loading CDL xml. ";
os << "Source file not specified.";
throw Exception(os.str().c_str());
}
std::string cccid;
if(cccid_) cccid = cccid_;
// Check cache
AutoMutex lock(g_cacheMutex);
// Use g_cacheSrcIsCC as a proxy for if we have loaded this source
// file already (in which case it must be in cache, or an error)
StringBoolMap::iterator srcIsCCiter = g_cacheSrcIsCC.find(src);
if(srcIsCCiter != g_cacheSrcIsCC.end())
{
// If the source file is known to be a pure ColorCorrection element,
// null out the cccid so its ignored.
if(srcIsCCiter->second) cccid = "";
// Search for the cccid by name
CDLTransformMap::iterator iter =
g_cache.find(GetCDLLocalCacheKey(src, cccid));
if(iter != g_cache.end())
{
return iter->second;
}
// Search for cccid by index
int cccindex=0;
if(StringToInt(&cccindex, cccid.c_str(), true))
{
iter = g_cache.find(GetCDLLocalCacheKey(src, cccindex));
if(iter != g_cache.end())
{
return iter->second;
}
}
std::ostringstream os;
os << "The specified cccid/cccindex '" << cccid;
os << "' could not be loaded from the src file '";
os << src;
os << "'.";
throw Exception (os.str().c_str());
}
// Try to read all ccs from the file, into cache
std::ifstream istream(src);
if(istream.fail()) {
std::ostringstream os;
os << "Error could not read CDL source file '" << src;
os << "'. Please verify the file exists and appropriate ";
os << "permissions are set.";
throw Exception (os.str().c_str());
}
// Read the file into a string.
std::ostringstream rawdata;
rawdata << istream.rdbuf();
std::string xml = rawdata.str();
if(xml.empty())
{
std::ostringstream os;
os << "Error loading CDL xml. ";
os << "The specified source file, '";
os << src << "' appears to be empty.";
throw Exception(os.str().c_str());
}
TiXmlDocument doc;
doc.Parse(xml.c_str());
if(doc.Error())
{
std::ostringstream os;
os << "Error loading CDL xml from file '";
os << src << "'. ";
os << doc.ErrorDesc() << " (line ";
os << doc.ErrorRow() << ", character ";
os << doc.ErrorCol() << ")";
throw Exception(os.str().c_str());
}
if(!doc.RootElement())
{
std::ostringstream os;
os << "Error loading CDL xml from file '";
os << src << "'. ";
os << "Please confirm the xml is valid.";
throw Exception(os.str().c_str());
}
std::string rootValue = doc.RootElement()->Value();
if(rootValue == "ColorCorrection")
{
// Load a single ColorCorrection into the cache
CDLTransformRcPtr cdl = CDLTransform::Create();
LoadCDL(cdl.get(), doc.RootElement()->ToElement());
cccid = "";
g_cacheSrcIsCC[src] = true;
g_cache[GetCDLLocalCacheKey(src, cccid)] = cdl;
}
else if(rootValue == "ColorCorrectionCollection")
{
// Load all CCs from the ColorCorrectionCollection
// into the cache
CDLTransformMap transformMap;
CDLTransformVec transformVec;
GetCDLTransforms(transformMap, transformVec, doc.RootElement());
if(transformVec.empty())
{
std::ostringstream os;
os << "Error loading ccc xml. ";
os << "No ColorCorrection elements found in file '";
os << src << "'.";
throw Exception(os.str().c_str());
}
g_cacheSrcIsCC[src] = false;
// Add all by transforms to cache
// First by index, then by id
for(unsigned int i=0; i<transformVec.size(); ++i)
{
g_cache[GetCDLLocalCacheKey(src, i)] = transformVec[i];
}
for(CDLTransformMap::iterator iter = transformMap.begin();
iter != transformMap.end();
++iter)
{
g_cache[GetCDLLocalCacheKey(src, iter->first)] = iter->second;
}
}
// The all transforms should be in the cache. Look it up, and try
// to return it.
{
// Search for the cccid by name
CDLTransformMap::iterator iter =
g_cache.find(GetCDLLocalCacheKey(src, cccid));
if(iter != g_cache.end())
{
return iter->second;
}
// Search for cccid by index
int cccindex=0;
if(StringToInt(&cccindex, cccid.c_str(), true))
{
iter = g_cache.find(GetCDLLocalCacheKey(src, cccindex));
if(iter != g_cache.end())
{
return iter->second;
}
}
std::ostringstream os;
os << "The specified cccid/cccindex '" << cccid;
os << "' could not be loaded from the src file '";
os << src;
os << "'.";
throw Exception (os.str().c_str());
}
}
CDLTransformRcPtr CDLTransform::CreateFromFile(const char * src, const char * cccid)
{
if(!src || (strlen(src) == 0) || !cccid)
{
std::ostringstream os;
os << "Error loading CDL xml. ";
os << "Source file not specified.";
throw Exception(os.str().c_str());
}
// Check cache
AutoMutex lock(g_cacheMutex);
{
CDLTransformMap::iterator iter =
g_cache.find(GetCDLLocalCacheKey(src,cccid));
if(iter != g_cache.end())
{
return iter->second;
}
}
std::ifstream istream(src);
if(istream.fail()) {
std::ostringstream os;
os << "Error could not read CDL source file '" << src;
os << "'. Please verify the file exists and appropriate ";
os << "permissions are set.";
throw Exception (os.str().c_str());
}
// Read the file into a string.
std::ostringstream rawdata;
rawdata << istream.rdbuf();
std::string xml = rawdata.str();
if(xml.empty())
{
std::ostringstream os;
os << "Error loading CDL xml. ";
os << "The specified source file, '";
os << src << "' appears to be empty.";
throw Exception(os.str().c_str());
}
TiXmlDocument doc;
doc.Parse(xml.c_str());
if(doc.Error())
{
std::ostringstream os;
os << "Error loading CDL xml from file '";
os << src << "'. ";
os << doc.ErrorDesc() << " (line ";
os << doc.ErrorRow() << ", character ";
os << doc.ErrorCol() << ")";
throw Exception(os.str().c_str());
}
if(!doc.RootElement())
{
std::ostringstream os;
os << "Error loading CDL xml from file '";
os << src << "'. ";
os << "Please confirm the xml is valid.";
throw Exception(os.str().c_str());
}
std::string rootValue = doc.RootElement()->Value();
if(rootValue == "ColorCorrection")
{
// Load a single ColorCorrection into the cache
CDLTransformRcPtr cdl = CDLTransform::Create();
LoadCDL(cdl.get(), doc.RootElement()->ToElement());
g_cache[GetCDLLocalCacheKey(src,cccid)] = cdl;
return cdl;
}
else if(rootValue == "ColorCorrectionCollection")
{
// Load all CCs from the ColorCorrectionCollection
// into the cache
CDLTransformMap transforms;
GetCDLTransforms(transforms, doc.RootElement());
if(transforms.empty())
{
std::ostringstream os;
os << "Error loading ccc xml. ";
os << "No ColorCorrection elements found in file '";
os << src << "'.";
throw Exception(os.str().c_str());
}
for(CDLTransformMap::iterator iter = transforms.begin();
iter != transforms.end();
++iter)
{
g_cache[GetCDLLocalCacheKey(src,iter->first)] = iter->second;
}
CDLTransformMap::iterator cciter = g_cache.find(GetCDLLocalCacheKey(src,cccid));
if(cciter == g_cache.end())
{
std::ostringstream os;
os << "Error loading ccc xml. ";
os << "The specified cccid " << cccid << " ";
os << "could not be found in file '";
os << src << "'.";
throw Exception(os.str().c_str());
}
return cciter->second;
}
std::ostringstream os;
os << "Error loading CDL xml from file '";
os << src << "'. ";
os << "Root xml element is type '" << rootValue << "', ";
os << "ColorCorrection or ColorCorrectionCollection expected.";
throw Exception(os.str().c_str());
}