完成Buffer创建和销毁，以及直接访问模式的数据上传

src/render/vulkan_command_buffer.cpp

@@ -0,0 +1,34 @@
+#include "vulkan_command_buffer.h"
+
+#include "vulkan_context.h"
+
+namespace mirai {
+	vulkan_command_buffer::vulkan_command_buffer(std::shared_ptr<vulkan_queue> queue, vk::CommandBufferLevel level) {
+		queue_ = queue;
+		level_ = level;
+		cmd_   = vulkan_thread_context::get().allocate_command_buffer(queue_, level_);
+	}
+
+	vk::Result vulkan_command_buffer::begin(const vk::CommandBufferBeginInfo& info) const {
+		return cmd_.begin(info);
+	}
+
+	void vulkan_command_buffer::pipeline_barrier(const vk::DependencyInfo& dependency_info) {
+		return cmd_.pipelineBarrier2(dependency_info);
+	}
+
+	void vulkan_command_buffer::execute_cleanup_tasks() {
+		for (const auto& task : cleanup_tasks_) {
+			if (task.task) {
+				task.task();
+			}
+		}
+		cleanup_tasks_.clear();
+	}
+
+	void vulkan_command_buffer::on_destroying() {
+		object::on_destroying();
+
+		vulkan_thread_context::get().free_command_buffer(queue_, cmd_);
+	}
+}