layers/threading.cpp - platform/external/vulkan-validation-layers - Git at Google

 /*
  * Vulkan
  *
  * Copyright (C) 2015 Valve, Inc.
  * Copyright (C) 2016 Google, Inc.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
  * to deal in the Software without restriction, including without limitation
  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  * and/or sell copies of the Software, and to permit persons to whom the
  * Software is furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included
  * in all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  * DEALINGS IN THE SOFTWARE.
  */
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unordered_map>
 #include <list>

 #include "vk_loader_platform.h"
 #include "vulkan/vk_layer.h"
 #include "vk_layer_config.h"
 #include "vk_layer_extension_utils.h"
 #include "vk_layer_utils.h"
 #include "vk_enum_validate_helper.h"
 #include "vk_struct_validate_helper.h"
 #include "vk_layer_table.h"
 #include "vk_layer_logging.h"
 #include "threading.h"
 #include "vk_dispatch_table_helper.h"
 #include "vk_struct_string_helper_cpp.h"
 #include "vk_layer_data.h"
 #include "vk_layer_utils.h"

 #include "thread_check.h"

 static void initThreading(layer_data *my_data, const VkAllocationCallbacks *pAllocator) {

     layer_debug_actions(my_data->report_data, my_data->logging_callback, pAllocator, "google_threading");

     if (!threadingLockInitialized) {
         loader_platform_thread_create_mutex(&threadingLock);
         loader_platform_thread_init_cond(&threadingCond);
         threadingLockInitialized = 1;
     }
 }

 VK_LAYER_EXPORT VKAPI_ATTR VkResult VKAPI_CALL
 vkCreateInstance(const VkInstanceCreateInfo *pCreateInfo, const VkAllocationCallbacks *pAllocator, VkInstance *pInstance) {
     VkLayerInstanceCreateInfo *chain_info = get_chain_info(pCreateInfo, VK_LAYER_LINK_INFO);

     assert(chain_info->u.pLayerInfo);
     PFN_vkGetInstanceProcAddr fpGetInstanceProcAddr = chain_info->u.pLayerInfo->pfnNextGetInstanceProcAddr;
     PFN_vkCreateInstance fpCreateInstance = (PFN_vkCreateInstance)fpGetInstanceProcAddr(NULL, "vkCreateInstance");
     if (fpCreateInstance == NULL) {
         return VK_ERROR_INITIALIZATION_FAILED;
     }

     // Advance the link info for the next element on the chain
     chain_info->u.pLayerInfo = chain_info->u.pLayerInfo->pNext;

     VkResult result = fpCreateInstance(pCreateInfo, pAllocator, pInstance);
     if (result != VK_SUCCESS)
         return result;

     layer_data *my_data = get_my_data_ptr(get_dispatch_key(*pInstance), layer_data_map);
     my_data->instance_dispatch_table = new VkLayerInstanceDispatchTable;
     layer_init_instance_dispatch_table(*pInstance, my_data->instance_dispatch_table, fpGetInstanceProcAddr);

     my_data->report_data = debug_report_create_instance(my_data->instance_dispatch_table, *pInstance,
                                                         pCreateInfo->enabledExtensionCount, pCreateInfo->ppEnabledExtensionNames);
     initThreading(my_data, pAllocator);
     return result;
 }

 VK_LAYER_EXPORT VKAPI_ATTR void VKAPI_CALL vkDestroyInstance(VkInstance instance, const VkAllocationCallbacks *pAllocator) {
     dispatch_key key = get_dispatch_key(instance);
     layer_data *my_data = get_my_data_ptr(key, layer_data_map);
     VkLayerInstanceDispatchTable *pTable = my_data->instance_dispatch_table;
     startWriteObject(my_data, instance);
     pTable->DestroyInstance(instance, pAllocator);
     finishWriteObject(my_data, instance);

     // Clean up logging callback, if any
     while (my_data->logging_callback.size() > 0) {
         VkDebugReportCallbackEXT callback = my_data->logging_callback.back();
         layer_destroy_msg_callback(my_data->report_data, callback, pAllocator);
         my_data->logging_callback.pop_back();
     }

     layer_debug_report_destroy_instance(my_data->report_data);
     delete my_data->instance_dispatch_table;
     layer_data_map.erase(key);

     if (layer_data_map.empty()) {
         // Release mutex when destroying last instance.
         loader_platform_thread_delete_mutex(&threadingLock);
         threadingLockInitialized = 0;
     }
 }

 VK_LAYER_EXPORT VKAPI_ATTR VkResult VKAPI_CALL vkCreateDevice(VkPhysicalDevice gpu, const VkDeviceCreateInfo *pCreateInfo,
                                                               const VkAllocationCallbacks *pAllocator, VkDevice *pDevice) {
     VkLayerDeviceCreateInfo *chain_info = get_chain_info(pCreateInfo, VK_LAYER_LINK_INFO);

     assert(chain_info->u.pLayerInfo);
     PFN_vkGetInstanceProcAddr fpGetInstanceProcAddr = chain_info->u.pLayerInfo->pfnNextGetInstanceProcAddr;
     PFN_vkGetDeviceProcAddr fpGetDeviceProcAddr = chain_info->u.pLayerInfo->pfnNextGetDeviceProcAddr;
     PFN_vkCreateDevice fpCreateDevice = (PFN_vkCreateDevice)fpGetInstanceProcAddr(NULL, "vkCreateDevice");
     if (fpCreateDevice == NULL) {
         return VK_ERROR_INITIALIZATION_FAILED;
     }

     // Advance the link info for the next element on the chain
     chain_info->u.pLayerInfo = chain_info->u.pLayerInfo->pNext;

     VkResult result = fpCreateDevice(gpu, pCreateInfo, pAllocator, pDevice);
     if (result != VK_SUCCESS) {
         return result;
     }

     layer_data *my_instance_data = get_my_data_ptr(get_dispatch_key(gpu), layer_data_map);
     layer_data *my_device_data = get_my_data_ptr(get_dispatch_key(*pDevice), layer_data_map);

     // Setup device dispatch table
     my_device_data->device_dispatch_table = new VkLayerDispatchTable;
     layer_init_device_dispatch_table(*pDevice, my_device_data->device_dispatch_table, fpGetDeviceProcAddr);

     my_device_data->report_data = layer_debug_report_create_device(my_instance_data->report_data, *pDevice);
     return result;
 }

 VK_LAYER_EXPORT VKAPI_ATTR void VKAPI_CALL vkDestroyDevice(VkDevice device, const VkAllocationCallbacks *pAllocator) {
     dispatch_key key = get_dispatch_key(device);
     layer_data *dev_data = get_my_data_ptr(key, layer_data_map);
     startWriteObject(dev_data, device);
     dev_data->device_dispatch_table->DestroyDevice(device, pAllocator);
     finishWriteObject(dev_data, device);
     layer_data_map.erase(key);
 }

 static const VkExtensionProperties threading_extensions[] = {
     {VK_EXT_DEBUG_REPORT_EXTENSION_NAME, VK_EXT_DEBUG_REPORT_SPEC_VERSION}};

 VK_LAYER_EXPORT VkResult VKAPI_CALL
 vkEnumerateInstanceExtensionProperties(const char *pLayerName, uint32_t *pCount, VkExtensionProperties *pProperties) {
     return util_GetExtensionProperties(ARRAY_SIZE(threading_extensions), threading_extensions, pCount, pProperties);
 }

 static const VkLayerProperties globalLayerProps[] = {{
     "VK_LAYER_GOOGLE_threading",
     VK_LAYER_API_VERSION, // specVersion
     1, "Google Validation Layer",
 }};

 VK_LAYER_EXPORT VkResult VKAPI_CALL vkEnumerateInstanceLayerProperties(uint32_t *pCount, VkLayerProperties *pProperties) {
     return util_GetLayerProperties(ARRAY_SIZE(globalLayerProps), globalLayerProps, pCount, pProperties);
 }

 static const VkLayerProperties deviceLayerProps[] = {{
     "VK_LAYER_GOOGLE_threading",
     VK_LAYER_API_VERSION, // specVersion
     1, "Google Validation Layer",
 }};

 VK_LAYER_EXPORT VKAPI_ATTR VkResult VKAPI_CALL vkEnumerateDeviceExtensionProperties(VkPhysicalDevice physicalDevice,
                                                                                     const char *pLayerName, uint32_t *pCount,
                                                                                     VkExtensionProperties *pProperties) {
     if (pLayerName == NULL) {
         dispatch_key key = get_dispatch_key(physicalDevice);
         layer_data *my_data = get_my_data_ptr(key, layer_data_map);
         return my_data->instance_dispatch_table->EnumerateDeviceExtensionProperties(physicalDevice, NULL, pCount, pProperties);
     } else {
         // Threading layer does not have any device extensions
         return util_GetExtensionProperties(0, nullptr, pCount, pProperties);
     }
 }

 VK_LAYER_EXPORT VkResult VKAPI_CALL
 vkEnumerateDeviceLayerProperties(VkPhysicalDevice physicalDevice, uint32_t *pCount, VkLayerProperties *pProperties) {
     return util_GetLayerProperties(ARRAY_SIZE(deviceLayerProps), deviceLayerProps, pCount, pProperties);
 }

 static inline PFN_vkVoidFunction layer_intercept_proc(const char *name) {
     for (int i = 0; i < sizeof(procmap) / sizeof(procmap[0]); i++) {
         if (!strcmp(name, procmap[i].name))
             return procmap[i].pFunc;
     }
     return NULL;
 }

 static inline PFN_vkVoidFunction layer_intercept_instance_proc(const char *name) {
     if (!name || name[0] != 'v' || name[1] != 'k')
         return NULL;

     name += 2;
     if (!strcmp(name, "CreateInstance"))
         return (PFN_vkVoidFunction)vkCreateInstance;
     if (!strcmp(name, "DestroyInstance"))
         return (PFN_vkVoidFunction)vkDestroyInstance;
     if (!strcmp(name, "EnumerateInstanceExtensionProperties"))
         return (PFN_vkVoidFunction)vkEnumerateInstanceExtensionProperties;
     if (!strcmp(name, "EnumerateInstanceLayerProperties"))
         return (PFN_vkVoidFunction)vkEnumerateInstanceLayerProperties;
     if (!strcmp(name, "EnumerateDeviceExtensionProperties"))
         return (PFN_vkVoidFunction)vkEnumerateDeviceExtensionProperties;
     if (!strcmp(name, "EnumerateDeviceLayerProperties"))
         return (PFN_vkVoidFunction)vkEnumerateDeviceLayerProperties;
     if (!strcmp(name, "CreateDevice"))
         return (PFN_vkVoidFunction)vkCreateDevice;
     if (!strcmp(name, "GetInstanceProcAddr"))
         return (PFN_vkVoidFunction)vkGetInstanceProcAddr;

     return NULL;
 }

 VK_LAYER_EXPORT PFN_vkVoidFunction VKAPI_CALL vkGetDeviceProcAddr(VkDevice device, const char *funcName) {
     PFN_vkVoidFunction addr;
     layer_data *dev_data;
     if (device == VK_NULL_HANDLE) {
         return NULL;
     }

     addr = layer_intercept_proc(funcName);
     if (addr)
         return addr;

     dev_data = get_my_data_ptr(get_dispatch_key(device), layer_data_map);
     VkLayerDispatchTable *pTable = dev_data->device_dispatch_table;

     if (pTable->GetDeviceProcAddr == NULL)
         return NULL;
     return pTable->GetDeviceProcAddr(device, funcName);
 }

 VK_LAYER_EXPORT PFN_vkVoidFunction VKAPI_CALL vkGetInstanceProcAddr(VkInstance instance, const char *funcName) {
     PFN_vkVoidFunction addr;
     layer_data *my_data;

     addr = layer_intercept_instance_proc(funcName);
     if (addr) {
         return addr;
     }

     if (instance == VK_NULL_HANDLE) {
         return NULL;
     }

     my_data = get_my_data_ptr(get_dispatch_key(instance), layer_data_map);
     addr = debug_report_get_instance_proc_addr(my_data->report_data, funcName);
     if (addr) {
         return addr;
     }

     VkLayerInstanceDispatchTable *pTable = my_data->instance_dispatch_table;
     if (pTable->GetInstanceProcAddr == NULL) {
         return NULL;
     }
     return pTable->GetInstanceProcAddr(instance, funcName);
 }

 VK_LAYER_EXPORT VKAPI_ATTR VkResult VKAPI_CALL
 vkCreateDebugReportCallbackEXT(VkInstance instance, const VkDebugReportCallbackCreateInfoEXT *pCreateInfo,
                                const VkAllocationCallbacks *pAllocator, VkDebugReportCallbackEXT *pMsgCallback) {
     layer_data *my_data = get_my_data_ptr(get_dispatch_key(instance), layer_data_map);
     startReadObject(my_data, instance);
     VkResult result =
         my_data->instance_dispatch_table->CreateDebugReportCallbackEXT(instance, pCreateInfo, pAllocator, pMsgCallback);
     if (VK_SUCCESS == result) {
         result = layer_create_msg_callback(my_data->report_data, pCreateInfo, pAllocator, pMsgCallback);
     }
     finishReadObject(my_data, instance);
     return result;
 }

 VK_LAYER_EXPORT VKAPI_ATTR void VKAPI_CALL
 vkDestroyDebugReportCallbackEXT(VkInstance instance, VkDebugReportCallbackEXT callback, const VkAllocationCallbacks *pAllocator) {
     layer_data *my_data = get_my_data_ptr(get_dispatch_key(instance), layer_data_map);
     startReadObject(my_data, instance);
     startWriteObject(my_data, callback);
     my_data->instance_dispatch_table->DestroyDebugReportCallbackEXT(instance, callback, pAllocator);
     layer_destroy_msg_callback(my_data->report_data, callback, pAllocator);
     finishReadObject(my_data, instance);
     finishWriteObject(my_data, callback);
 }

 VkResult VKAPI_CALL
 vkAllocateCommandBuffers(VkDevice device, const VkCommandBufferAllocateInfo *pAllocateInfo, VkCommandBuffer *pCommandBuffers) {
     dispatch_key key = get_dispatch_key(device);
     layer_data *my_data = get_my_data_ptr(key, layer_data_map);
     VkLayerDispatchTable *pTable = my_data->device_dispatch_table;
     VkResult result;
     startReadObject(my_data, device);
     startWriteObject(my_data, pAllocateInfo->commandPool);

     result = pTable->AllocateCommandBuffers(device, pAllocateInfo, pCommandBuffers);
     finishReadObject(my_data, device);
     finishWriteObject(my_data, pAllocateInfo->commandPool);

     // Record mapping from command buffer to command pool
     if (VK_SUCCESS == result) {
         for (int index = 0; index < pAllocateInfo->commandBufferCount; index++) {
             loader_platform_thread_lock_mutex(&threadingLock);
             command_pool_map[pCommandBuffers[index]] = pAllocateInfo->commandPool;
             loader_platform_thread_unlock_mutex(&threadingLock);
         }
     }

     return result;
 }

 void VKAPI_CALL vkFreeCommandBuffers(VkDevice device, VkCommandPool commandPool, uint32_t commandBufferCount,
                                      const VkCommandBuffer *pCommandBuffers) {
     dispatch_key key = get_dispatch_key(device);
     layer_data *my_data = get_my_data_ptr(key, layer_data_map);
     VkLayerDispatchTable *pTable = my_data->device_dispatch_table;
     const bool lockCommandPool = false; // pool is already directly locked
     startReadObject(my_data, device);
     startWriteObject(my_data, commandPool);
     for (int index = 0; index < commandBufferCount; index++) {
         startWriteObject(my_data, pCommandBuffers[index], lockCommandPool);
     }

     pTable->FreeCommandBuffers(device, commandPool, commandBufferCount, pCommandBuffers);
     finishReadObject(my_data, device);
     finishWriteObject(my_data, commandPool);
     for (int index = 0; index < commandBufferCount; index++) {
         finishWriteObject(my_data, pCommandBuffers[index], lockCommandPool);
         loader_platform_thread_lock_mutex(&threadingLock);
         command_pool_map.erase(pCommandBuffers[index]);
         loader_platform_thread_unlock_mutex(&threadingLock);
     }
 }
	/*
	* Vulkan
	*
	* Copyright (C) 2015 Valve, Inc.
	* Copyright (C) 2016 Google, Inc.
	*
	* Permission is hereby granted, free of charge, to any person obtaining a
	* copy of this software and associated documentation files (the "Software"),
	* to deal in the Software without restriction, including without limitation
	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	* and/or sell copies of the Software, and to permit persons to whom the
	* Software is furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice shall be included
	* in all copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
	* DEALINGS IN THE SOFTWARE.
	*/
	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	#include <unordered_map>
	#include <list>

	#include "vk_loader_platform.h"
	#include "vulkan/vk_layer.h"
	#include "vk_layer_config.h"
	#include "vk_layer_extension_utils.h"
	#include "vk_layer_utils.h"
	#include "vk_enum_validate_helper.h"
	#include "vk_struct_validate_helper.h"
	#include "vk_layer_table.h"
	#include "vk_layer_logging.h"
	#include "threading.h"
	#include "vk_dispatch_table_helper.h"
	#include "vk_struct_string_helper_cpp.h"
	#include "vk_layer_data.h"
	#include "vk_layer_utils.h"

	#include "thread_check.h"

	static void initThreading(layer_data my_data, const VkAllocationCallbacks pAllocator) {

	layer_debug_actions(my_data->report_data, my_data->logging_callback, pAllocator, "google_threading");

	if (!threadingLockInitialized) {
	loader_platform_thread_create_mutex(&threadingLock);
	loader_platform_thread_init_cond(&threadingCond);
	threadingLockInitialized = 1;
	}
	}

	VK_LAYER_EXPORT VKAPI_ATTR VkResult VKAPI_CALL
	vkCreateInstance(const VkInstanceCreateInfo pCreateInfo, const VkAllocationCallbacks pAllocator, VkInstance *pInstance) {
	VkLayerInstanceCreateInfo *chain_info = get_chain_info(pCreateInfo, VK_LAYER_LINK_INFO);

	assert(chain_info->u.pLayerInfo);
	PFN_vkGetInstanceProcAddr fpGetInstanceProcAddr = chain_info->u.pLayerInfo->pfnNextGetInstanceProcAddr;
	PFN_vkCreateInstance fpCreateInstance = (PFN_vkCreateInstance)fpGetInstanceProcAddr(NULL, "vkCreateInstance");
	if (fpCreateInstance == NULL) {
	return VK_ERROR_INITIALIZATION_FAILED;
	}

	// Advance the link info for the next element on the chain
	chain_info->u.pLayerInfo = chain_info->u.pLayerInfo->pNext;

	VkResult result = fpCreateInstance(pCreateInfo, pAllocator, pInstance);
	if (result != VK_SUCCESS)
	return result;

	layer_data my_data = get_my_data_ptr(get_dispatch_key(pInstance), layer_data_map);
	my_data->instance_dispatch_table = new VkLayerInstanceDispatchTable;
	layer_init_instance_dispatch_table(*pInstance, my_data->instance_dispatch_table, fpGetInstanceProcAddr);

	my_data->report_data = debug_report_create_instance(my_data->instance_dispatch_table, *pInstance,
	pCreateInfo->enabledExtensionCount, pCreateInfo->ppEnabledExtensionNames);
	initThreading(my_data, pAllocator);
	return result;
	}

	VK_LAYER_EXPORT VKAPI_ATTR void VKAPI_CALL vkDestroyInstance(VkInstance instance, const VkAllocationCallbacks *pAllocator) {
	dispatch_key key = get_dispatch_key(instance);
	layer_data *my_data = get_my_data_ptr(key, layer_data_map);
	VkLayerInstanceDispatchTable *pTable = my_data->instance_dispatch_table;
	startWriteObject(my_data, instance);
	pTable->DestroyInstance(instance, pAllocator);
	finishWriteObject(my_data, instance);

	// Clean up logging callback, if any
	while (my_data->logging_callback.size() > 0) {
	VkDebugReportCallbackEXT callback = my_data->logging_callback.back();
	layer_destroy_msg_callback(my_data->report_data, callback, pAllocator);
	my_data->logging_callback.pop_back();
	}

	layer_debug_report_destroy_instance(my_data->report_data);
	delete my_data->instance_dispatch_table;
	layer_data_map.erase(key);

	if (layer_data_map.empty()) {
	// Release mutex when destroying last instance.
	loader_platform_thread_delete_mutex(&threadingLock);
	threadingLockInitialized = 0;
	}
	}

	VK_LAYER_EXPORT VKAPI_ATTR VkResult VKAPI_CALL vkCreateDevice(VkPhysicalDevice gpu, const VkDeviceCreateInfo *pCreateInfo,
	const VkAllocationCallbacks pAllocator, VkDevice pDevice) {
	VkLayerDeviceCreateInfo *chain_info = get_chain_info(pCreateInfo, VK_LAYER_LINK_INFO);

	assert(chain_info->u.pLayerInfo);
	PFN_vkGetInstanceProcAddr fpGetInstanceProcAddr = chain_info->u.pLayerInfo->pfnNextGetInstanceProcAddr;
	PFN_vkGetDeviceProcAddr fpGetDeviceProcAddr = chain_info->u.pLayerInfo->pfnNextGetDeviceProcAddr;
	PFN_vkCreateDevice fpCreateDevice = (PFN_vkCreateDevice)fpGetInstanceProcAddr(NULL, "vkCreateDevice");
	if (fpCreateDevice == NULL) {
	return VK_ERROR_INITIALIZATION_FAILED;
	}

	// Advance the link info for the next element on the chain
	chain_info->u.pLayerInfo = chain_info->u.pLayerInfo->pNext;

	VkResult result = fpCreateDevice(gpu, pCreateInfo, pAllocator, pDevice);
	if (result != VK_SUCCESS) {
	return result;
	}

	layer_data *my_instance_data = get_my_data_ptr(get_dispatch_key(gpu), layer_data_map);
	layer_data my_device_data = get_my_data_ptr(get_dispatch_key(pDevice), layer_data_map);

	// Setup device dispatch table
	my_device_data->device_dispatch_table = new VkLayerDispatchTable;
	layer_init_device_dispatch_table(*pDevice, my_device_data->device_dispatch_table, fpGetDeviceProcAddr);

	my_device_data->report_data = layer_debug_report_create_device(my_instance_data->report_data, *pDevice);
	return result;
	}

	VK_LAYER_EXPORT VKAPI_ATTR void VKAPI_CALL vkDestroyDevice(VkDevice device, const VkAllocationCallbacks *pAllocator) {
	dispatch_key key = get_dispatch_key(device);
	layer_data *dev_data = get_my_data_ptr(key, layer_data_map);
	startWriteObject(dev_data, device);
	dev_data->device_dispatch_table->DestroyDevice(device, pAllocator);
	finishWriteObject(dev_data, device);
	layer_data_map.erase(key);
	}

	static const VkExtensionProperties threading_extensions[] = {
	{VK_EXT_DEBUG_REPORT_EXTENSION_NAME, VK_EXT_DEBUG_REPORT_SPEC_VERSION}};

	VK_LAYER_EXPORT VkResult VKAPI_CALL
	vkEnumerateInstanceExtensionProperties(const char pLayerName, uint32_t pCount, VkExtensionProperties *pProperties) {
	return util_GetExtensionProperties(ARRAY_SIZE(threading_extensions), threading_extensions, pCount, pProperties);
	}

	static const VkLayerProperties globalLayerProps[] = {{
	"VK_LAYER_GOOGLE_threading",
	VK_LAYER_API_VERSION, // specVersion
	1, "Google Validation Layer",
	}};

	VK_LAYER_EXPORT VkResult VKAPI_CALL vkEnumerateInstanceLayerProperties(uint32_t pCount, VkLayerProperties pProperties) {
	return util_GetLayerProperties(ARRAY_SIZE(globalLayerProps), globalLayerProps, pCount, pProperties);
	}

	static const VkLayerProperties deviceLayerProps[] = {{
	"VK_LAYER_GOOGLE_threading",
	VK_LAYER_API_VERSION, // specVersion
	1, "Google Validation Layer",
	}};

	VK_LAYER_EXPORT VKAPI_ATTR VkResult VKAPI_CALL vkEnumerateDeviceExtensionProperties(VkPhysicalDevice physicalDevice,
	const char pLayerName, uint32_t pCount,
	VkExtensionProperties *pProperties) {
	if (pLayerName == NULL) {
	dispatch_key key = get_dispatch_key(physicalDevice);
	layer_data *my_data = get_my_data_ptr(key, layer_data_map);
	return my_data->instance_dispatch_table->EnumerateDeviceExtensionProperties(physicalDevice, NULL, pCount, pProperties);
	} else {
	// Threading layer does not have any device extensions
	return util_GetExtensionProperties(0, nullptr, pCount, pProperties);
	}
	}

	VK_LAYER_EXPORT VkResult VKAPI_CALL
	vkEnumerateDeviceLayerProperties(VkPhysicalDevice physicalDevice, uint32_t pCount, VkLayerProperties pProperties) {
	return util_GetLayerProperties(ARRAY_SIZE(deviceLayerProps), deviceLayerProps, pCount, pProperties);
	}

	static inline PFN_vkVoidFunction layer_intercept_proc(const char *name) {
	for (int i = 0; i < sizeof(procmap) / sizeof(procmap[0]); i++) {
	if (!strcmp(name, procmap[i].name))
	return procmap[i].pFunc;
	}
	return NULL;
	}

	static inline PFN_vkVoidFunction layer_intercept_instance_proc(const char *name) {
	if (!name \|\| name[0] != 'v' \|\| name[1] != 'k')
	return NULL;

	name += 2;
	if (!strcmp(name, "CreateInstance"))
	return (PFN_vkVoidFunction)vkCreateInstance;
	if (!strcmp(name, "DestroyInstance"))
	return (PFN_vkVoidFunction)vkDestroyInstance;
	if (!strcmp(name, "EnumerateInstanceExtensionProperties"))
	return (PFN_vkVoidFunction)vkEnumerateInstanceExtensionProperties;
	if (!strcmp(name, "EnumerateInstanceLayerProperties"))
	return (PFN_vkVoidFunction)vkEnumerateInstanceLayerProperties;
	if (!strcmp(name, "EnumerateDeviceExtensionProperties"))
	return (PFN_vkVoidFunction)vkEnumerateDeviceExtensionProperties;
	if (!strcmp(name, "EnumerateDeviceLayerProperties"))
	return (PFN_vkVoidFunction)vkEnumerateDeviceLayerProperties;
	if (!strcmp(name, "CreateDevice"))
	return (PFN_vkVoidFunction)vkCreateDevice;
	if (!strcmp(name, "GetInstanceProcAddr"))
	return (PFN_vkVoidFunction)vkGetInstanceProcAddr;

	return NULL;
	}

	VK_LAYER_EXPORT PFN_vkVoidFunction VKAPI_CALL vkGetDeviceProcAddr(VkDevice device, const char *funcName) {
	PFN_vkVoidFunction addr;
	layer_data *dev_data;
	if (device == VK_NULL_HANDLE) {
	return NULL;
	}

	addr = layer_intercept_proc(funcName);
	if (addr)
	return addr;

	dev_data = get_my_data_ptr(get_dispatch_key(device), layer_data_map);
	VkLayerDispatchTable *pTable = dev_data->device_dispatch_table;

	if (pTable->GetDeviceProcAddr == NULL)
	return NULL;
	return pTable->GetDeviceProcAddr(device, funcName);
	}

	VK_LAYER_EXPORT PFN_vkVoidFunction VKAPI_CALL vkGetInstanceProcAddr(VkInstance instance, const char *funcName) {
	PFN_vkVoidFunction addr;
	layer_data *my_data;

	addr = layer_intercept_instance_proc(funcName);
	if (addr) {
	return addr;
	}

	if (instance == VK_NULL_HANDLE) {
	return NULL;
	}

	my_data = get_my_data_ptr(get_dispatch_key(instance), layer_data_map);
	addr = debug_report_get_instance_proc_addr(my_data->report_data, funcName);
	if (addr) {
	return addr;
	}

	VkLayerInstanceDispatchTable *pTable = my_data->instance_dispatch_table;
	if (pTable->GetInstanceProcAddr == NULL) {
	return NULL;
	}
	return pTable->GetInstanceProcAddr(instance, funcName);
	}

	VK_LAYER_EXPORT VKAPI_ATTR VkResult VKAPI_CALL
	vkCreateDebugReportCallbackEXT(VkInstance instance, const VkDebugReportCallbackCreateInfoEXT *pCreateInfo,
	const VkAllocationCallbacks pAllocator, VkDebugReportCallbackEXT pMsgCallback) {
	layer_data *my_data = get_my_data_ptr(get_dispatch_key(instance), layer_data_map);
	startReadObject(my_data, instance);
	VkResult result =
	my_data->instance_dispatch_table->CreateDebugReportCallbackEXT(instance, pCreateInfo, pAllocator, pMsgCallback);
	if (VK_SUCCESS == result) {
	result = layer_create_msg_callback(my_data->report_data, pCreateInfo, pAllocator, pMsgCallback);
	}
	finishReadObject(my_data, instance);
	return result;
	}

	VK_LAYER_EXPORT VKAPI_ATTR void VKAPI_CALL
	vkDestroyDebugReportCallbackEXT(VkInstance instance, VkDebugReportCallbackEXT callback, const VkAllocationCallbacks *pAllocator) {
	layer_data *my_data = get_my_data_ptr(get_dispatch_key(instance), layer_data_map);
	startReadObject(my_data, instance);
	startWriteObject(my_data, callback);
	my_data->instance_dispatch_table->DestroyDebugReportCallbackEXT(instance, callback, pAllocator);
	layer_destroy_msg_callback(my_data->report_data, callback, pAllocator);
	finishReadObject(my_data, instance);
	finishWriteObject(my_data, callback);
	}

	VkResult VKAPI_CALL
	vkAllocateCommandBuffers(VkDevice device, const VkCommandBufferAllocateInfo pAllocateInfo, VkCommandBuffer pCommandBuffers) {
	dispatch_key key = get_dispatch_key(device);
	layer_data *my_data = get_my_data_ptr(key, layer_data_map);
	VkLayerDispatchTable *pTable = my_data->device_dispatch_table;
	VkResult result;
	startReadObject(my_data, device);
	startWriteObject(my_data, pAllocateInfo->commandPool);

	result = pTable->AllocateCommandBuffers(device, pAllocateInfo, pCommandBuffers);
	finishReadObject(my_data, device);
	finishWriteObject(my_data, pAllocateInfo->commandPool);

	// Record mapping from command buffer to command pool
	if (VK_SUCCESS == result) {
	for (int index = 0; index < pAllocateInfo->commandBufferCount; index++) {
	loader_platform_thread_lock_mutex(&threadingLock);
	command_pool_map[pCommandBuffers[index]] = pAllocateInfo->commandPool;
	loader_platform_thread_unlock_mutex(&threadingLock);
	}
	}

	return result;
	}

	void VKAPI_CALL vkFreeCommandBuffers(VkDevice device, VkCommandPool commandPool, uint32_t commandBufferCount,
	const VkCommandBuffer *pCommandBuffers) {
	dispatch_key key = get_dispatch_key(device);
	layer_data *my_data = get_my_data_ptr(key, layer_data_map);
	VkLayerDispatchTable *pTable = my_data->device_dispatch_table;
	const bool lockCommandPool = false; // pool is already directly locked
	startReadObject(my_data, device);
	startWriteObject(my_data, commandPool);
	for (int index = 0; index < commandBufferCount; index++) {
	startWriteObject(my_data, pCommandBuffers[index], lockCommandPool);
	}

	pTable->FreeCommandBuffers(device, commandPool, commandBufferCount, pCommandBuffers);
	finishReadObject(my_data, device);
	finishWriteObject(my_data, commandPool);
	for (int index = 0; index < commandBufferCount; index++) {
	finishWriteObject(my_data, pCommandBuffers[index], lockCommandPool);
	loader_platform_thread_lock_mutex(&threadingLock);
	command_pool_map.erase(pCommandBuffers[index]);
	loader_platform_thread_unlock_mutex(&threadingLock);
	}
	}