GlfImageSharedPtr
GlfImageRegistry::_ConstructImage(std::string const & filename)
{
static GlfImageSharedPtr NULL_IMAGE;
// Lookup the plug-in type name based on the filename.
TfToken fileExtension(ArGetResolver().GetExtension(filename));
TfType const & pluginType = _typeMap->Find(fileExtension);
if (!pluginType) {
// Unknown prim type.
TF_DEBUG(GLF_DEBUG_TEXTURE_IMAGE_PLUGINS).Msg(
"[PluginLoad] Unknown image type '%s'\n",
fileExtension.GetText());
return NULL_IMAGE;
}
PlugRegistry& plugReg = PlugRegistry::GetInstance();
PlugPluginPtr plugin = plugReg.GetPluginForType(pluginType);
if (!plugin || !plugin->Load()) {
TF_CODING_ERROR("[PluginLoad] PlugPlugin could not be loaded for "
"TfType '%s'\n",
pluginType.GetTypeName().c_str());
return NULL_IMAGE;
}
GlfImageFactoryBase* factory = pluginType.GetFactory<GlfImageFactoryBase>();
if (!factory) {
TF_CODING_ERROR("[PluginLoad] Cannot manufacture type '%s' "
"for image type '%s'\n",
pluginType.GetTypeName().c_str(),
fileExtension.GetText());
return NULL_IMAGE;
}
GlfImageSharedPtr instance = factory->New();
if (!instance) {
TF_CODING_ERROR("[PluginLoad] Cannot construct instance of type '%s' "
"for image type '%s'\n",
pluginType.GetTypeName().c_str(),
fileExtension.GetText());
return NULL_IMAGE;
}
TF_DEBUG(GLF_DEBUG_TEXTURE_IMAGE_PLUGINS).Msg(
"[PluginLoad] Loaded plugin '%s' for image type '%s'\n",
pluginType.GetTypeName().c_str(),
fileExtension.GetText());
return instance;
}
static bool
_ProvidesForType(
const PlugPluginPtr& plug,
const std::vector<TfToken>& scope,
const std::string& typeName,
std::string* mayaPluginName)
{
JsObject metadata = plug->GetMetadata();
JsObject mayaTranslatorMetadata;
if (!_ReadNestedDict(metadata, scope, &mayaTranslatorMetadata)) {
return false;
}
JsValue any;
if (!TfMapLookup(mayaTranslatorMetadata, _tokens->providesTranslator, &any)) {
return false;
}
std::vector<std::string> usdTypes;
if (!_GetData(any, &usdTypes)) {
return false;
}
bool provides = std::find(
usdTypes.begin(), usdTypes.end(),
typeName) != usdTypes.end();
if (provides) {
if (TfMapLookup(mayaTranslatorMetadata, _tokens->mayaPlugin, &any)) {
return _GetData(any, mayaPluginName);
}
}
return provides;
}
static SdfLayerRefPtr
_GetGeneratedSchema(const PlugPluginPtr &plugin)
{
// Look for generatedSchema in Resources.
const string fname = TfStringCatPaths(plugin->GetResourcePath(),
"generatedSchema.usda");
return SdfLayer::OpenAsAnonymous(fname);
}
GlfTextureFactoryBase*
GlfTextureRegistry::_GetTextureFactory(const TfToken &filename)
{
// Lookup the plug-in type name based on the file extension.
TfToken fileExtension(TfStringGetSuffix(filename));
TfType pluginType = _typeMap->Find(fileExtension);
if (!pluginType) {
// Unknown type. Try the wildcard.
pluginType = _typeMap->Find(TfToken("*"));
if (!pluginType) {
TF_DEBUG(GLF_DEBUG_TEXTURE_PLUGINS).Msg(
"[PluginLoad] Unknown texture type '%s'\n",
fileExtension.GetText());
return nullptr;
}
}
PlugRegistry& plugReg = PlugRegistry::GetInstance();
PlugPluginPtr plugin = plugReg.GetPluginForType(pluginType);
if (!plugin || !plugin->Load()) {
TF_CODING_ERROR("[PluginLoad] PlugPlugin could not be loaded for "
"TfType '%s'\n",
pluginType.GetTypeName().c_str());
return nullptr;
}
TF_DEBUG(GLF_DEBUG_TEXTURE_IMAGE_PLUGINS).Msg(
"[PluginLoad] Loaded plugin '%s' for texture type '%s'\n",
pluginType.GetTypeName().c_str(),
fileExtension.GetText());
if (GlfTextureFactoryBase* factory =
pluginType.GetFactory<GlfTextureFactoryBase>()) {
return factory;
}
TF_CODING_ERROR("[PluginLoad] Cannot manufacture type '%s' "
"for texture type '%s'\n",
pluginType.GetTypeName().c_str(),
fileExtension.GetText());
return nullptr;
}
static bool
_HasShadingModePlugin(
const PlugPluginPtr& plug,
const std::vector<TfToken>& scope,
std::string* mayaPluginName)
{
JsObject metadata = plug->GetMetadata();
JsObject mayaTranslatorMetadata;
if (!_ReadNestedDict(metadata, scope, &mayaTranslatorMetadata)) {
return false;
}
JsValue any;
if (TfMapLookup(mayaTranslatorMetadata, _tokens->mayaPlugin, &any)) {
return _GetData(any, mayaPluginName);
}
return false;
}