创建逻辑设备功能

src/gpu_resource/gpu_buffer.cpp

@@ -0,0 +1,21 @@
+#include "gpu_buffer.h"
+
+#include "allocator.h"
+
+namespace mirai {
+	gpu_buffer::gpu_buffer(const buffer_create_info& info) {
+		vma_allocator::get();
+	}
+
+	bool gpu_buffer::is_host_visible() const noexcept {
+		switch (mem_usage_) {
+			case memory_usage::cpu_only:
+			case memory_usage::cpu_to_gpu:
+			case memory_usage::gpu_to_cpu:
+			case memory_usage::auto_prefer_host:
+				return true;
+			default:
+				return false;
+		}
+	}
+}