Method resize

framework/api_vulkan_sample.cpp:118–177

}

bool ApiVulkanSample::resize(const uint32_t _width, const uint32_t _height)
{
	if (!prepared)
	{
		return false;
	}

	get_render_context().handle_surface_changes();

	// Don't recreate the swapchain if the dimensions haven't changed
	if (width == get_render_context().get_surface_extent().width && height == get_render_context().get_surface_extent().height)
	{
		return false;
	}

	width  = get_render_context().get_surface_extent().width;
	height = get_render_context().get_surface_extent().height;

	prepared = false;

	// Ensure all operations on the device have been finished before destroying resources
	get_device().wait_idle();

	create_swapchain_buffers();

	// Recreate the frame buffers
	vkDestroyImageView(get_device().get_handle(), depth_stencil.view, nullptr);
	vkDestroyImage(get_device().get_handle(), depth_stencil.image, nullptr);
	vkFreeMemory(get_device().get_handle(), depth_stencil.mem, nullptr);
	setup_depth_stencil();
	for (uint32_t i = 0; i < framebuffers.size(); i++)
	{
		vkDestroyFramebuffer(get_device().get_handle(), framebuffers[i], nullptr);
		framebuffers[i] = VK_NULL_HANDLE;
	}
	setup_framebuffer();

	if ((width > 0.0f) && (height > 0.0f))
	{
		if (has_gui())
		{
			get_gui().resize(width, height);
		}
	}

	rebuild_command_buffers();

	get_device().wait_idle();

	if ((width > 0.0f) && (height > 0.0f))
	{
		camera.update_aspect_ratio(static_cast<float>(width) / static_cast<float>(height));
	}

	// Notify derived class
	view_changed();

	prepared = true;