Handle images with invalid resolution

openVulkanoCpp/IO/Files/Pfm.hpp

@@ -94,6 +94,14 @@ namespace OpenVulkano
 		void Read(std::istream& inStream)
 		{
 			inStream >> header;
+
+			if (header.width == UINT32_MAX || header.height == UINT32_MAX)
+			{
+				header.width = header.height = 0;
+				image = nullptr;
+				return;
+			}
+
 			size_t size = header.GetElementCount();
 
 			image = std::make_unique<float[]>(size);

openVulkanoCpp/IO/Files/Pnm.hpp

@@ -139,6 +139,13 @@ namespace OpenVulkano
 			// TODO handle ascii mode
 			if (header.ascii) throw std::runtime_error("ascii mode not supported!");
 
+			if (header.width == UINT32_MAX || header.height == UINT32_MAX)
+			{
+				header.width = header.height = 0;
+				image = nullptr;
+				return;
+			}
+
 			size_t size = header.GetImageSize();
 			image = std::make_unique<char[]>(size);
 			inStream.read(image.get(), size);