/*

 * Copyright 2015-2023 The Khronos Group Inc.

 * Copyright 2015-2023 Valve Corporation

 * Copyright 2015-2023 LunarG, Inc.

 *

 * SPDX-License-Identifier: Apache-2.0

 */

#pragma once

#include "vulkan.h"

#include <stdbool.h>

// Loader-ICD version negotiation API.  Versions add the following features:

//   Version 0 - Initial.  Doesn't support vk_icdGetInstanceProcAddr

//               or vk_icdNegotiateLoaderICDInterfaceVersion.

//   Version 1 - Add support for vk_icdGetInstanceProcAddr.

//   Version 2 - Add Loader/ICD Interface version negotiation

//               via vk_icdNegotiateLoaderICDInterfaceVersion.

//   Version 3 - Add ICD creation/destruction of KHR_surface objects.

//   Version 4 - Add unknown physical device extension querying via

//               vk_icdGetPhysicalDeviceProcAddr.

//   Version 5 - Tells ICDs that the loader is now paying attention to the

//               application version of Vulkan passed into the ApplicationInfo

//               structure during vkCreateInstance.  This will tell the ICD

//               that if the loader is older, it should automatically fail a

//               call for any API version > 1.0.  Otherwise, the loader will

//               manually determine if it can support the expected version.

//   Version 6 - Add support for vk_icdEnumerateAdapterPhysicalDevices.

//   Version 7 - If an ICD supports any of the following functions, they must be

//               queryable with vk_icdGetInstanceProcAddr:

//                   vk_icdNegotiateLoaderICDInterfaceVersion

//                   vk_icdGetPhysicalDeviceProcAddr

//                   vk_icdEnumerateAdapterPhysicalDevices (Windows only)

//               In addition, these functions no longer need to be exported directly.

//               This version allows drivers provided through the extension

//               VK_LUNARG_direct_driver_loading be able to support the entire

//               Driver-Loader interface.

#define CURRENT_LOADER_ICD_INTERFACE_VERSION 7

#define MIN_SUPPORTED_LOADER_ICD_INTERFACE_VERSION 0

#define MIN_PHYS_DEV_EXTENSION_ICD_INTERFACE_VERSION 4

// Old typedefs that don't follow a proper naming convention but are preserved for compatibility

typedef VkResult(VKAPI_PTR *PFN_vkNegotiateLoaderICDInterfaceVersion)(uint32_t *pVersion);

// This is defined in vk_layer.h which will be found by the loader, but if an ICD is building against this

// file directly, it won't be found.

#ifndef IS_DEFINED_PFN_GetPhysicalDeviceProcAddr

typedef PFN_vkVoidFunction(VKAPI_PTR *PFN_GetPhysicalDeviceProcAddr)(VkInstance instance, const char *pName);

#define IS_DEFINED_PFN_GetPhysicalDeviceProcAddr

#endif

// Typedefs for loader/ICD interface

typedef VkResult (VKAPI_PTR *PFN_vk_icdNegotiateLoaderICDInterfaceVersion)(uint32_t* pVersion);

typedef PFN_vkVoidFunction (VKAPI_PTR *PFN_vk_icdGetInstanceProcAddr)(VkInstance instance, const char* pName);

typedef PFN_vkVoidFunction (VKAPI_PTR *PFN_vk_icdGetPhysicalDeviceProcAddr)(VkInstance instance, const char* pName);

#if defined(VK_USE_PLATFORM_WIN32_KHR)

typedef VkResult (VKAPI_PTR *PFN_vk_icdEnumerateAdapterPhysicalDevices)(VkInstance instance, LUID adapterLUID,

    uint32_t* pPhysicalDeviceCount, VkPhysicalDevice* pPhysicalDevices);

#endif

// Prototypes for loader/ICD interface

#if !defined(VK_NO_PROTOTYPES)

#ifdef __cplusplus

extern "C" {

#endif

    VKAPI_ATTR VkResult VKAPI_CALL vk_icdNegotiateLoaderICDInterfaceVersion(uint32_t* pVersion);

    VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL vk_icdGetInstanceProcAddr(VkInstance instance, const char* pName);

    VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL vk_icdGetPhysicalDeviceProcAddr(VkInstance instance, const char* pName);

#if defined(VK_USE_PLATFORM_WIN32_KHR)

    VKAPI_ATTR VkResult VKAPI_CALL vk_icdEnumerateAdapterPhysicalDevices(VkInstance instance, LUID adapterLUID,

        uint32_t* pPhysicalDeviceCount, VkPhysicalDevice* pPhysicalDevices);

#endif

#ifdef __cplusplus

}

#endif

#endif

/*

 * The ICD must reserve space for a pointer for the loader's dispatch

 * table, at the start of <each object>.

 * The ICD must initialize this variable using the SET_LOADER_MAGIC_VALUE macro.

 */

#define ICD_LOADER_MAGIC 0x01CDC0DE

typedef union {

    uintptr_t loaderMagic;

    void *loaderData;

} VK_LOADER_DATA;

static inline void set_loader_magic_value(void *pNewObject) {

    VK_LOADER_DATA *loader_info = (VK_LOADER_DATA *)pNewObject;

    loader_info->loaderMagic = ICD_LOADER_MAGIC;

}

static inline bool valid_loader_magic_value(void *pNewObject) {

    const VK_LOADER_DATA *loader_info = (VK_LOADER_DATA *)pNewObject;

    return (loader_info->loaderMagic & 0xffffffff) == ICD_LOADER_MAGIC;

}

/*

 * Windows and Linux ICDs will treat VkSurfaceKHR as a pointer to a struct that

 * contains the platform-specific connection and surface information.

 */

typedef enum {

    VK_ICD_WSI_PLATFORM_MIR,

    VK_ICD_WSI_PLATFORM_WAYLAND,

    VK_ICD_WSI_PLATFORM_WIN32,

    VK_ICD_WSI_PLATFORM_XCB,

    VK_ICD_WSI_PLATFORM_XLIB,

    VK_ICD_WSI_PLATFORM_ANDROID,

    VK_ICD_WSI_PLATFORM_MACOS,

    VK_ICD_WSI_PLATFORM_IOS,

    VK_ICD_WSI_PLATFORM_DISPLAY,

    VK_ICD_WSI_PLATFORM_HEADLESS,

    VK_ICD_WSI_PLATFORM_METAL,

    VK_ICD_WSI_PLATFORM_DIRECTFB,

    VK_ICD_WSI_PLATFORM_VI,

    VK_ICD_WSI_PLATFORM_GGP,

    VK_ICD_WSI_PLATFORM_SCREEN,

    VK_ICD_WSI_PLATFORM_FUCHSIA,

} VkIcdWsiPlatform;

typedef struct {

    VkIcdWsiPlatform platform;

} VkIcdSurfaceBase;

#ifdef VK_USE_PLATFORM_MIR_KHR

typedef struct {

    VkIcdSurfaceBase base;

    MirConnection *connection;

    MirSurface *mirSurface;

} VkIcdSurfaceMir;

#endif  // VK_USE_PLATFORM_MIR_KHR

#ifdef VK_USE_PLATFORM_WAYLAND_KHR

typedef struct {

    VkIcdSurfaceBase base;

    struct wl_display *display;

    struct wl_surface *surface;

} VkIcdSurfaceWayland;

#endif  // VK_USE_PLATFORM_WAYLAND_KHR

#ifdef VK_USE_PLATFORM_WIN32_KHR

typedef struct {

    VkIcdSurfaceBase base;

    HINSTANCE hinstance;

    HWND hwnd;

} VkIcdSurfaceWin32;

#endif  // VK_USE_PLATFORM_WIN32_KHR

#ifdef VK_USE_PLATFORM_XCB_KHR

typedef struct {

    VkIcdSurfaceBase base;

    xcb_connection_t *connection;

    xcb_window_t window;

} VkIcdSurfaceXcb;

#endif  // VK_USE_PLATFORM_XCB_KHR

#ifdef VK_USE_PLATFORM_XLIB_KHR

typedef struct {

    VkIcdSurfaceBase base;

    Display *dpy;

    Window window;

} VkIcdSurfaceXlib;

#endif  // VK_USE_PLATFORM_XLIB_KHR

#ifdef VK_USE_PLATFORM_DIRECTFB_EXT

typedef struct {

    VkIcdSurfaceBase base;

    IDirectFB *dfb;

    IDirectFBSurface *surface;

} VkIcdSurfaceDirectFB;

#endif  // VK_USE_PLATFORM_DIRECTFB_EXT

#ifdef VK_USE_PLATFORM_ANDROID_KHR

typedef struct {

    VkIcdSurfaceBase base;

    struct ANativeWindow *window;

} VkIcdSurfaceAndroid;

#endif  // VK_USE_PLATFORM_ANDROID_KHR

#ifdef VK_USE_PLATFORM_MACOS_MVK

typedef struct {

    VkIcdSurfaceBase base;

    const void *pView;

} VkIcdSurfaceMacOS;

#endif  // VK_USE_PLATFORM_MACOS_MVK

#ifdef VK_USE_PLATFORM_IOS_MVK

typedef struct {

    VkIcdSurfaceBase base;

    const void *pView;

} VkIcdSurfaceIOS;

#endif  // VK_USE_PLATFORM_IOS_MVK

#ifdef VK_USE_PLATFORM_GGP

typedef struct {

    VkIcdSurfaceBase base;

    GgpStreamDescriptor streamDescriptor;

} VkIcdSurfaceGgp;

#endif  // VK_USE_PLATFORM_GGP

typedef struct {

    VkIcdSurfaceBase base;

    VkDisplayModeKHR displayMode;

    uint32_t planeIndex;

    uint32_t planeStackIndex;

    VkSurfaceTransformFlagBitsKHR transform;

    float globalAlpha;

    VkDisplayPlaneAlphaFlagBitsKHR alphaMode;

    VkExtent2D imageExtent;

} VkIcdSurfaceDisplay;

typedef struct {

    VkIcdSurfaceBase base;

} VkIcdSurfaceHeadless;

#ifdef VK_USE_PLATFORM_METAL_EXT

typedef struct {

    VkIcdSurfaceBase base;

    const CAMetalLayer *pLayer;

} VkIcdSurfaceMetal;

#endif // VK_USE_PLATFORM_METAL_EXT

#ifdef VK_USE_PLATFORM_VI_NN

typedef struct {

    VkIcdSurfaceBase base;

    void *window;

} VkIcdSurfaceVi;

#endif // VK_USE_PLATFORM_VI_NN

#ifdef VK_USE_PLATFORM_SCREEN_QNX

typedef struct {

    VkIcdSurfaceBase base;

    struct _screen_context *context;

    struct _screen_window *window;

} VkIcdSurfaceScreen;

#endif  // VK_USE_PLATFORM_SCREEN_QNX

#ifdef VK_USE_PLATFORM_FUCHSIA

typedef struct {

  VkIcdSurfaceBase base;

} VkIcdSurfaceImagePipe;

#endif // VK_USE_PLATFORM_FUCHSIA