godot/platform/iphone/vulkan_context_iphone.mm

/*************************************************************************/
/*  vulkan_context_iphone.mm                                             */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md).   */
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#include "vulkan_context_iphone.h"
#ifdef USE_VOLK
#include <volk.h>
#else
#include <vulkan/vulkan.h>
#endif

const char *VulkanContextIPhone::_get_platform_surface_extension() const {
	return VK_MVK_IOS_SURFACE_EXTENSION_NAME;
}

Error VulkanContextIPhone::window_create(DisplayServer::WindowID p_window_id, DisplayServer::VSyncMode p_vsync_mode, CALayer *p_metal_layer, int p_width, int p_height) {
	VkIOSSurfaceCreateInfoMVK createInfo;
	createInfo.sType = VK_STRUCTURE_TYPE_IOS_SURFACE_CREATE_INFO_MVK;
	createInfo.pNext = nullptr;
	createInfo.flags = 0;
	createInfo.pView = (__bridge const void *)p_metal_layer;

	VkSurfaceKHR surface;
	VkResult err =
			vkCreateIOSSurfaceMVK(get_instance(), &createInfo, nullptr, &surface);
	ERR_FAIL_COND_V(err, ERR_CANT_CREATE);

	return _window_create(p_window_id, p_vsync_mode, surface, p_width, p_height);
}

VulkanContextIPhone::VulkanContextIPhone() {}

VulkanContextIPhone::~VulkanContextIPhone() {}