some more refactoring and improvements

openVulkanoCpp/Base/Utils.hpp

@@ -16,6 +16,7 @@
 #include <cinttypes>
 #include <atomic>
 #include <fstream>
+#include <zlib.h>
 #include "Data/Containers/Array.hpp"
 
 namespace OpenVulkano
@@ -195,25 +196,7 @@ namespace OpenVulkano
 		static Array<char> ReadFile(const char (&filePath)[N], bool emptyOnMissing = false,
 		                            bool nullTerminateString = false)
 		{
-			std::ifstream file(filePath, std::ios::ate | std::ios::binary);
-			if (!file.is_open())
-			{
-				if (emptyOnMissing)
-				{
-					return {};
-				}
-				throw std::runtime_error("Failed to open file '" + std::string(filePath) + "'!");
-			}
-			const size_t fileSize = static_cast<size_t>(file.tellg());
-			Array<char> data(fileSize + nullTerminateString);
-			file.seekg(0);
-			file.read(data.Data(), fileSize);
-			if (nullTerminateString)
-			{
-				data[fileSize] = '\0';
-			}
-			file.close();
-			return data;
+			return ReadFile(std::string(filePath), emptyOnMissing, nullTerminateString);
 		}
 
 		template<class T>
@@ -222,6 +205,26 @@ namespace OpenVulkano
 			static const int id = uniqueTypeID++;
 			return id;
 		}
+
+		static unsigned char* STBZlibCompressor(unsigned char* data, int data_len, int* out_len, int quality)
+		{
+			uLong maxCompressedSize = compressBound(data_len);
+			void* outData = malloc(maxCompressedSize);
+			if (!outData)
+			{
+				*out_len = 0;
+				return nullptr;
+			}
+			int result = compress2(static_cast<Bytef*>(outData), &maxCompressedSize, data, data_len, Z_BEST_COMPRESSION);
+			if (result != Z_OK)
+			{
+				free(outData);
+				*out_len = 0;
+				return nullptr;
+			}
+			*out_len = static_cast<int>(maxCompressedSize);
+			return static_cast<unsigned char*>(outData);
+		}
 		
 		static std::string DemangleTypeName(const char* name);
 	};