Fix segfault when numPrimitives() if called before commit()

.github/workflows/ci.linux.yml

@@ -374,7 +374,7 @@ jobs:
       artifact-in: build-ubuntu2204-arm
       artifact-out: test-ubuntu2204-arm
       artifact-path: build_regression_tests/tests*.xml build_regression_tests/failed*
-      #artifact-on-failure: true
+      artifact-on-failure: true
 
   test-tutorials:
     needs: build-centos8

modules/cpu/geometry/Curves.cpp

@@ -167,7 +167,7 @@ void Curves::commit()
 
 size_t Curves::numPrimitives() const
 {
-  return indexData->size();
+  return indexData ? indexData->size() : 0;
 }
 
 void Curves::createEmbreeGeometry()

modules/cpu/geometry/Isosurfaces.cpp

@@ -85,7 +85,7 @@ void Isosurfaces::commit()
 
 size_t Isosurfaces::numPrimitives() const
 {
-  return isovaluesData->size();
+  return isovaluesData ? isovaluesData->size() : 0;
 }
 
 } // namespace ospray

modules/cpu/geometry/Mesh.cpp

@@ -205,7 +205,7 @@ void Mesh::commit()
 
 size_t Mesh::numPrimitives() const
 {
-  return indexData->size();
+  return indexData ? indexData->size() : 0;
 }
 
 } // namespace ospray

modules/cpu/geometry/Subdivision.cpp

@@ -175,7 +175,7 @@ void Subdivision::commit()
 
 size_t Subdivision::numPrimitives() const
 {
-  return facesData->size();
+  return facesData ? facesData->size() : 0;
 }
 
 } // namespace ospray

modules/pluggableGeometryExample/ospray/geometry/BilinearPatches.cpp

@@ -46,7 +46,9 @@ void BilinearPatches::commit()
 
 size_t BilinearPatches::numPrimitives() const
 {
-  return patchesData->size() * sizeOf(patchesData->type) / sizeof(ispc::Patch);
+  return patchesData
+      ? patchesData->size() * sizeOf(patchesData->type) / sizeof(ispc::Patch)
+      : 0;
 }
 
 } // namespace blp