[coverity] Fixing some coverity warnings

openpgl/data/SampleContainerInternal.h

@@ -128,6 +128,9 @@ struct ContainerInternal
     using value_type = Type;
 
     ContainerInternal() = default;
+
+    ContainerInternal(const ContainerInternal& cont) = delete;
+
     ~ContainerInternal()
     {
         delete[] m_data;

openpgl/imagespace/Denoiser.h

@@ -64,6 +64,10 @@ struct Denoiser
         oidnScalarFilter.commit();
     }
 
+    Denoiser(const Denoiser& denoiser) = delete;
+
+    Denoiser & operator=(const Denoiser&) = delete;
+
     void denoise(pgl_vec3f *rgb, pgl_vec3f *n, pgl_vec3f *albedo, pgl_vec3f *result)
     {
         const std::size_t numPixels = m_resolution.x * m_resolution.y;

openpgl/imagespace/ImageSpaceGuidingBuffer.h

@@ -45,6 +45,10 @@ struct ImageSpaceGuidingBuffer
             filteredSecondMoment = new pgl_vec3f[numPixels];
         }
 
+        Buffers(const Buffers& buffer) = delete;
+
+        Buffers & operator=(const Buffers&) = delete;
+
         ~Buffers()
         {
             delete[] contribution;
@@ -101,6 +105,10 @@ struct ImageSpaceGuidingBuffer
         m_ready = false;
     }
 
+    ImageSpaceGuidingBuffer(const ImageSpaceGuidingBuffer& isgbuffer) = delete;
+
+    ImageSpaceGuidingBuffer & operator=(const ImageSpaceGuidingBuffer&) = delete;
+
     ImageSpaceGuidingBuffer(const std::string &fileName)
     {
         EXRVersion exrVersion;
@@ -484,7 +492,7 @@ struct ImageSpaceGuidingBuffer
    private:
     bool m_ready{false};
     bool m_useSecondMoment{false};
-    pgl_point2i m_resolution;
+    pgl_point2i m_resolution {0, 0};
     Denoiser *m_denoiser{nullptr};
 
     Buffers *m_contributionEstimateBuffers{nullptr};