- backend sync with GZDoom to pull in a few bugfixes and formatting corrections.

source/common/utility/r_memory.h

@@ -0,0 +1,43 @@
+#pragma once
+
+#include <memory>
+#include <vector>
+
+// Memory needed for the duration of a frame rendering
+class RenderMemory
+{
+public:
+	void Clear();
+		
+	template<typename T>
+	T *AllocMemory(int size = 1)
+	{
+		return (T*)AllocBytes(sizeof(T) * size);
+	}
+		
+	template<typename T, typename... Types>
+	T *NewObject(Types &&... args)
+	{
+		void *ptr = AllocBytes(sizeof(T));
+		return new (ptr)T(std::forward<Types>(args)...);
+	}
+		
+private:
+	void *AllocBytes(int size);
+		
+	enum { BlockSize = 1024 * 1024 };
+		
+	struct MemoryBlock
+	{
+		MemoryBlock();
+		~MemoryBlock();
+			
+		MemoryBlock(const MemoryBlock &) = delete;
+		MemoryBlock &operator=(const MemoryBlock &) = delete;
+			
+		uint8_t *Data;
+		uint32_t Position;
+	};
+	std::vector<std::unique_ptr<MemoryBlock>> UsedBlocks;
+	std::vector<std::unique_ptr<MemoryBlock>> FreeBlocks;
+};