/*
 *
 * Copyright (C) 2015-2016 Valve Corporation
 * Copyright (C) 2015-2016 LunarG, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Author: Jon Ashburn <jon@lunarg.com>
 *
 */

#pragma once
#include <unordered_map>
#include "vulkan/vk_layer.h"

struct wrapped_phys_dev_obj {
    VkLayerInstanceDispatchTable *loader_disp;
    struct wrapped_inst_obj *inst;  // parent instance object
    void *obj;
};

struct wrapped_inst_obj {
    VkLayerInstanceDispatchTable *loader_disp;
    VkLayerInstanceDispatchTable layer_disp;    //this layer's dispatch table
    PFN_vkSetInstanceLoaderData pfn_inst_init;
    struct wrapped_phys_dev_obj *ptr_phys_devs; // any enumerated phys devs
    VkInstance obj;
};

struct wrapped_dev_obj {
    VkLayerDispatchTable *disp;
    VkLayerInstanceDispatchTable *layer_disp;  // TODO use this
    PFN_vkSetDeviceLoaderData pfn_dev_init;  //TODO use this
    void *obj;
};

static inline VkInstance unwrap_instance(const VkInstance instance,  wrapped_inst_obj **inst) {
   *inst = reinterpret_cast<wrapped_inst_obj *> (instance);
   return (*inst)->obj;
}

static inline VkPhysicalDevice unwrap_phys_dev(const VkPhysicalDevice physical_device,  wrapped_phys_dev_obj **phys_dev) {
   *phys_dev = reinterpret_cast<wrapped_phys_dev_obj *> (physical_device);
   return reinterpret_cast <VkPhysicalDevice> ((*phys_dev)->obj);
}

static void create_device_register_extensions(const VkDeviceCreateInfo *pCreateInfo, VkDevice device) {
    VkLayerDispatchTable *pDisp = device_dispatch_table(device);
    PFN_vkGetDeviceProcAddr gpa = pDisp->GetDeviceProcAddr;
    pDisp->CreateSwapchainKHR = (PFN_vkCreateSwapchainKHR)gpa(device, "vkCreateSwapchainKHR");
    pDisp->DestroySwapchainKHR = (PFN_vkDestroySwapchainKHR)gpa(device, "vkDestroySwapchainKHR");
    pDisp->GetSwapchainImagesKHR = (PFN_vkGetSwapchainImagesKHR)gpa(device, "vkGetSwapchainImagesKHR");
    pDisp->AcquireNextImageKHR = (PFN_vkAcquireNextImageKHR)gpa(device, "vkAcquireNextImageKHR");
    pDisp->QueuePresentKHR = (PFN_vkQueuePresentKHR)gpa(device, "vkQueuePresentKHR");
}