first draft of vulkan buffer implementation

src/modules/graphics/vulkan/Buffer.h

@@ -0,0 +1,36 @@
+#include "graphics/Buffer.h"
+#include <vulkan/vulkan.h>
+
+
+namespace love {
+	namespace graphics {
+		namespace vulkan {
+			class Buffer : public love::graphics::Buffer {
+			public:
+				Buffer(love::graphics::Graphics* gfx, const Settings& settings, const std::vector<DataDeclaration>& format, const void* data, size_t size, size_t arraylength);
+				virtual ~Buffer();
+
+				void* map(MapType map, size_t offset, size_t size) override;
+				void unmap(size_t usedoffset, size_t usedsize) override;
+				void fill(size_t offset, size_t size, const void* data) override;
+				void copyTo(love::graphics::Buffer* dest, size_t sourceoffset, size_t destoffset, size_t size) override;
+				ptrdiff_t getHandle() const override {
+					return (ptrdiff_t) buffer;	// todo ?
+				}
+				ptrdiff_t getTexelBufferHandle() const override {
+					return (ptrdiff_t) nullptr;	// todo ?
+				}
+
+			private:
+				VkDevice device;
+				VkPhysicalDevice physicalDevice;
+
+				// todo use a staging buffer for improved performance
+				VkBuffer buffer;
+				VkDeviceMemory bufferMemory;
+
+				void* mappedMemory;
+			};
+		}
+	}
+}