编写完顶点渲染程序，先保存一下

vulkan/Application.cpp

@@ -178,8 +178,6 @@ void Application::createLogicalDevice() {
 		throw std::runtime_error("failed to create logical device!");
 	}
 
-	v_device = std::make_unique<vkb::core::DeviceC>(v_gpu, device, surface);
-
 	vkGetDeviceQueue(device, indices.graphicsFamily.value(), 0, &graphicsQueue);
 	vkGetDeviceQueue(device, indices.presentFamily.value(), 0, &presentQueue);
 }
@@ -480,11 +478,7 @@ void Application::recordCommandBuffer(VkCommandBuffer commandBuffer, uint32_t im
 
 	vkCmdBeginRenderPass(commandBuffer, &renderPassInfo, VK_SUBPASS_CONTENTS_INLINE);
 
-	// 绑定图形管线
-	vkCmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, graphicsPipeline);
-
-	// 绘制三角形
-	vkCmdDraw(commandBuffer, 3, 1, 0, 0);
+	render(commandBuffer);
 
 	// 结束渲染流程
 	vkCmdEndRenderPass(commandBuffer);
@@ -494,6 +488,15 @@ void Application::recordCommandBuffer(VkCommandBuffer commandBuffer, uint32_t im
 	}
 }
 
+void Application::render(VkCommandBuffer commandBuffer)
+{
+	// 绑定图形管线
+	vkCmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, graphicsPipeline);
+
+	// 绘制三角形
+	vkCmdDraw(commandBuffer, 3, 1, 0, 0);
+}
+
 void Application::drawFrame() 
 {
 	// 1. 等待前一帧完成
@@ -651,10 +654,10 @@ uint32_t Application::findMemoryType(VkPhysicalDevice physicalDevice, uint32_t t
 
 Texture Application::loadTexture(std::string path)
 {
-	const char* filename = getPath(path).c_str();
+	std::vector<char> data = readFile(path);
 	std::vector<unsigned char> image;
 	unsigned w, h;
-	unsigned error = lodepng::decode(image, w, h, filename, LCT_RGBA, 8);
+	unsigned error = lodepng::decode(image, w, h, data.data(), LCT_RGBA, 8);
 	Texture tex;
 	processWithVulkan(image.data(), w, h, w * 4, image.size(), tex, true);
 	return tex;