diff options
| -rw-r--r-- | src/server/events/Delta.cpp | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/src/server/events/Delta.cpp b/src/server/events/Delta.cpp index 3fb60bfe..0a7b05ea 100644 --- a/src/server/events/Delta.cpp +++ b/src/server/events/Delta.cpp @@ -525,15 +525,18 @@ Delta::execute(RunContext& context) } break; case SpecialType::POLYPHONIC: { - GraphImpl* parent = reinterpret_cast<GraphImpl*>(object->parent()); - if (value.get<int32_t>()) { - object->apply_poly(context, parent->internal_poly_process()); - } else { - object->apply_poly(context, 1); + if (object) { + if (value.get<int32_t>()) { + auto* parent = reinterpret_cast<GraphImpl*>(object->parent()); + object->apply_poly(context, parent->internal_poly_process()); + } else { + object->apply_poly(context, 1); + } } } break; case SpecialType::POLYPHONY: - if (!_graph->apply_internal_poly(context, + if (_graph && + !_graph->apply_internal_poly(context, *_engine.buffer_factory(), *_engine.maid(), value.get<int32_t>())) { @@ -557,7 +560,9 @@ Delta::execute(RunContext& context) } break; case SpecialType::PRESET: - block->set_enabled(false); + if (block) { + block->set_enabled(false); + } break; case SpecialType::NONE: if (port) { |