Beispiel #1
0
/* static */
void
UsdKatanaCache::_SetMutedLayers(
    const UsdStageRefPtr &stage, const std::string &layerRegex) 
{
    // Trace this function to track its performance
    TRACE_FUNCTION();

    // Unmute layers that are currently muted, but not requested to be muted
    SdfLayerHandleVector stageLayers = stage->GetUsedLayers();

    bool regexIsEmpty = layerRegex == "" || layerRegex == "^$";
    
    // use a better regex library?
    regex_t regex;
    regcomp(&regex, layerRegex.c_str(), REG_EXTENDED);
    regmatch_t* rmatch = 0;

    TF_FOR_ALL(stageLayer, stageLayers)
    {
        SdfLayerHandle layer = *stageLayer;
        if (!layer) {
            continue;
        }
        std::string layerPath = layer->GetRepositoryPath();
        const std::string layerIdentifier = layer->GetIdentifier();

        bool match = false;
        
        if (!regexIsEmpty)
        {
            if (layer && !regexec(
                &regex, 
                layerIdentifier.c_str(), 
                0, rmatch, 0))
            {
                match = true;
            }
        }
        
        if (!match && stage->IsLayerMuted(layerIdentifier)) {
            TF_DEBUG(USDKATANA_CACHE_RENDERER).Msg("{USD RENDER CACHE} "
                                "Unmuting Layer: '%s'\n",
                                layerIdentifier.c_str());
            stage->UnmuteLayer(layerIdentifier);
        }

        if (match && !stage->IsLayerMuted(layerIdentifier)) {
            TF_DEBUG(USDKATANA_CACHE_RENDERER).Msg("{USD RENDER CACHE} "
                    "Muting Layer: '%s'\n",
                    layerIdentifier.c_str());
            stage->MuteLayer(layerIdentifier);
        }
    }