|  | /* | 
|  | * Vulkan | 
|  | * | 
|  | * Copyright (C) 2014 LunarG, 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 <string.h> | 
|  | #include <stdlib.h> | 
|  | #include <assert.h> | 
|  | #include <unordered_map> | 
|  | #include "loader_platform.h" | 
|  | #include "vk_dispatch_table_helper.h" | 
|  | #include "vkLayer.h" | 
|  | // The following is #included again to catch certain OS-specific functions | 
|  | // being used: | 
|  | #include "loader_platform.h" | 
|  |  | 
|  | static std::unordered_map<void *, VkLayerDispatchTable *> tableMap; | 
|  | static std::unordered_map<void *, VkLayerInstanceDispatchTable *> tableInstanceMap; | 
|  |  | 
|  | /* Various dispatchable objects will use the same underlying dispatch table if they | 
|  | * are created from that "parent" object. Thus use pointer to dispatch table | 
|  | * as the key to these table maps. | 
|  | *    Instance -> PhysicalDevice | 
|  | *    Device -> CmdBuffer or Queue | 
|  | * If use the object themselves as key to map then implies Create entrypoints have to be intercepted | 
|  | * and a new key inserted into map */ | 
|  | static VkLayerInstanceDispatchTable * initLayerInstanceTable(const VkBaseLayerObject *instancew) | 
|  | { | 
|  | VkLayerInstanceDispatchTable *pTable; | 
|  | assert(instancew); | 
|  | VkLayerInstanceDispatchTable **ppDisp = (VkLayerInstanceDispatchTable **) instancew->baseObject; | 
|  |  | 
|  | std::unordered_map<void *, VkLayerInstanceDispatchTable *>::const_iterator it = tableInstanceMap.find((void *) *ppDisp); | 
|  | if (it == tableInstanceMap.end()) | 
|  | { | 
|  | pTable =  new VkLayerInstanceDispatchTable; | 
|  | tableInstanceMap[(void *) *ppDisp] = pTable; | 
|  | } else | 
|  | { | 
|  | return it->second; | 
|  | } | 
|  |  | 
|  | layer_init_instance_dispatch_table(pTable, instancew); | 
|  |  | 
|  | return pTable; | 
|  | } | 
|  |  | 
|  | static VkLayerDispatchTable * initLayerTable(const VkBaseLayerObject *devw) | 
|  | { | 
|  | VkLayerDispatchTable *pTable; | 
|  | assert(devw); | 
|  | VkLayerDispatchTable **ppDisp = (VkLayerDispatchTable **) (devw->baseObject); | 
|  |  | 
|  | std::unordered_map<void *, VkLayerDispatchTable *>::const_iterator it = tableMap.find((void *) *ppDisp); | 
|  | if (it == tableMap.end()) | 
|  | { | 
|  | pTable =  new VkLayerDispatchTable; | 
|  | tableMap[(void *) *ppDisp] = pTable; | 
|  | } else | 
|  | { | 
|  | return it->second; | 
|  | } | 
|  |  | 
|  | layer_initialize_dispatch_table(pTable, devw); | 
|  |  | 
|  | return pTable; | 
|  | } | 
|  |  | 
|  | VK_LAYER_EXPORT VkResult VKAPI vkLayerExtension1(VkDevice device) | 
|  | { | 
|  | printf("In vkLayerExtension1() call w/ device: %p\n", (void*)device); | 
|  | printf("vkLayerExtension1 returning SUCCESS\n"); | 
|  | return VK_SUCCESS; | 
|  | } | 
|  |  | 
|  | #define BASIC_LAYER_EXT_ARRAY_SIZE 2 | 
|  |  | 
|  | static const VkExtensionProperties basicExts[BASIC_LAYER_EXT_ARRAY_SIZE] = { | 
|  | { | 
|  | VK_STRUCTURE_TYPE_EXTENSION_PROPERTIES, | 
|  | "Basic", | 
|  | 0x10, | 
|  | "Sample layer: Basic ", | 
|  | //        0, | 
|  | //        NULL, | 
|  | }, | 
|  | { | 
|  | VK_STRUCTURE_TYPE_EXTENSION_PROPERTIES, | 
|  | "vkLayerExtension1", | 
|  | 0x10, | 
|  | "Sample layer: Basic", | 
|  | //        0, | 
|  | //        NULL, | 
|  | } | 
|  | }; | 
|  |  | 
|  | VK_LAYER_EXPORT VkResult VKAPI vkGetGlobalExtensionInfo( | 
|  | VkExtensionInfoType infoType, | 
|  | uint32_t extensionIndex, | 
|  | size_t*  pDataSize, | 
|  | void*    pData) | 
|  | { | 
|  | /* This entrypoint is NOT going to init it's own dispatch table since loader calls here early */ | 
|  | uint32_t *count; | 
|  |  | 
|  | if (pDataSize == NULL) | 
|  | return VK_ERROR_INVALID_POINTER; | 
|  |  | 
|  | switch (infoType) { | 
|  | case VK_EXTENSION_INFO_TYPE_COUNT: | 
|  | *pDataSize = sizeof(uint32_t); | 
|  | if (pData == NULL) | 
|  | return VK_SUCCESS; | 
|  | count = (uint32_t *) pData; | 
|  | *count = BASIC_LAYER_EXT_ARRAY_SIZE; | 
|  | break; | 
|  | case VK_EXTENSION_INFO_TYPE_PROPERTIES: | 
|  | *pDataSize = sizeof(VkExtensionProperties); | 
|  | if (pData == NULL) | 
|  | return VK_SUCCESS; | 
|  | if (extensionIndex >= BASIC_LAYER_EXT_ARRAY_SIZE) | 
|  | return VK_ERROR_INVALID_VALUE; | 
|  | memcpy((VkExtensionProperties *) pData, &basicExts[extensionIndex], sizeof(VkExtensionProperties)); | 
|  | break; | 
|  | default: | 
|  | return VK_ERROR_INVALID_VALUE; | 
|  | }; | 
|  |  | 
|  | return VK_SUCCESS; | 
|  | } | 
|  |  | 
|  | VK_LAYER_EXPORT VkResult VKAPI vkEnumeratePhysicalDevices( | 
|  | VkInstance instance, | 
|  | uint32_t* pPhysicalDeviceCount, | 
|  | VkPhysicalDevice* pPhysicalDevices) | 
|  | { | 
|  | VkLayerInstanceDispatchTable **ppDisp = (VkLayerInstanceDispatchTable **) instance; | 
|  | VkLayerInstanceDispatchTable *pInstTable = tableInstanceMap[*ppDisp]; | 
|  | printf("At start of wrapped vkEnumeratePhysicalDevices() call w/ inst: %p\n", (void*)instance); | 
|  | VkResult result = pInstTable->EnumeratePhysicalDevices(instance, pPhysicalDeviceCount, pPhysicalDevices); | 
|  | printf("Completed wrapped vkEnumeratePhysicalDevices() call w/ count %u\n", *pPhysicalDeviceCount); | 
|  | return result; | 
|  | } | 
|  |  | 
|  | VK_LAYER_EXPORT VkResult VKAPI vkCreateDevice(VkPhysicalDevice gpu, const VkDeviceCreateInfo* pCreateInfo, VkDevice* pDevice) | 
|  | { | 
|  | VkLayerInstanceDispatchTable **ppDisp = (VkLayerInstanceDispatchTable **) gpu; | 
|  | VkLayerInstanceDispatchTable* pInstTable = tableInstanceMap[*ppDisp]; | 
|  |  | 
|  | printf("At start of wrapped vkCreateDevice() call w/ gpu: %p\n", (void*)gpu); | 
|  | VkResult result = pInstTable->CreateDevice(gpu, pCreateInfo, pDevice); | 
|  | printf("Completed wrapped vkCreateDevice() call w/ pDevice, Device %p: %p\n", (void*)pDevice, (void *) *pDevice); | 
|  | return result; | 
|  | } | 
|  |  | 
|  | /* hook DestroyDevice to remove tableMap entry */ | 
|  | VK_LAYER_EXPORT VkResult VKAPI vkDestroyDevice(VkDevice device) | 
|  | { | 
|  | VkLayerDispatchTable *pDisp =  *(VkLayerDispatchTable **) device; | 
|  | VkLayerDispatchTable *pTable = tableMap[pDisp]; | 
|  | VkResult res = pTable->DestroyDevice(device); | 
|  | tableMap.erase(pDisp); | 
|  | return res; | 
|  | } | 
|  |  | 
|  | /* hook DestroyInstance to remove tableInstanceMap entry */ | 
|  | VK_LAYER_EXPORT VkResult VKAPI vkDestroyInstance(VkInstance instance) | 
|  | { | 
|  | VkLayerInstanceDispatchTable *pDisp = *(VkLayerInstanceDispatchTable **) instance; | 
|  | VkLayerInstanceDispatchTable *pTable = tableInstanceMap[pDisp]; | 
|  | VkResult res = pTable->DestroyInstance(instance); | 
|  | tableInstanceMap.erase(pDisp); | 
|  | return res; | 
|  | } | 
|  |  | 
|  | VK_LAYER_EXPORT VkResult VKAPI vkGetFormatInfo(VkDevice device, VkFormat format, VkFormatInfoType infoType, size_t* pDataSize, void* pData) | 
|  | { | 
|  | VkLayerDispatchTable **ppDisp = (VkLayerDispatchTable **) device; | 
|  | VkLayerDispatchTable* pTable = tableMap[*ppDisp]; | 
|  |  | 
|  | printf("At start of wrapped vkGetFormatInfo() call w/ device: %p\n", (void*)device); | 
|  | VkResult result = pTable->GetFormatInfo(device, format, infoType, pDataSize, pData); | 
|  | printf("Completed wrapped vkGetFormatInfo() call w/ device: %p\n", (void*)device); | 
|  | return result; | 
|  | } | 
|  |  | 
|  | VK_LAYER_EXPORT void * VKAPI vkGetDeviceProcAddr(VkDevice device, const char* pName) | 
|  | { | 
|  | if (device == NULL) | 
|  | return NULL; | 
|  |  | 
|  | /* loader uses this to force layer initialization; device object is wrapped */ | 
|  | if (!strcmp("vkGetDeviceProcAddr", pName)) { | 
|  | initLayerTable((const VkBaseLayerObject *) device); | 
|  | return (void *) vkGetDeviceProcAddr; | 
|  | } | 
|  |  | 
|  | if (!strcmp("vkGetFormatInfo", pName)) | 
|  | return (void *) vkGetFormatInfo; | 
|  | if (!strcmp("vkDestroyDevice", pName)) | 
|  | return (void *) vkDestroyDevice; | 
|  | if (!strcmp("vkLayerExtension1", pName)) | 
|  | return (void *) vkLayerExtension1; | 
|  | else | 
|  | { | 
|  | VkLayerDispatchTable **ppDisp = (VkLayerDispatchTable **) device; | 
|  | VkLayerDispatchTable* pTable = tableMap[*ppDisp]; | 
|  | if (pTable->GetDeviceProcAddr == NULL) | 
|  | return NULL; | 
|  | return pTable->GetDeviceProcAddr(device, pName); | 
|  | } | 
|  | } | 
|  |  | 
|  | VK_LAYER_EXPORT void * VKAPI vkGetInstanceProcAddr(VkInstance instance, const char* pName) | 
|  | { | 
|  | if (instance == NULL) | 
|  | return NULL; | 
|  |  | 
|  | /* loader uses this to force layer initialization; instance object is wrapped */ | 
|  | if (!strcmp("vkGetInstanceProcAddr", pName)) { | 
|  | initLayerInstanceTable((const VkBaseLayerObject *) instance); | 
|  | return (void *) vkGetInstanceProcAddr; | 
|  | } | 
|  |  | 
|  | if (!strcmp("vkDestroyInstance", pName)) | 
|  | return (void *) vkDestroyInstance; | 
|  | if (!strcmp("vkEnumeratePhysicalDevices", pName)) | 
|  | return (void*) vkEnumeratePhysicalDevices; | 
|  | if (!strcmp("vkGetGlobalExtensionInfo", pName)) | 
|  | return (void*) vkGetGlobalExtensionInfo; | 
|  | if (!strcmp("vkCreateDevice", pName)) | 
|  | return (void *) vkCreateDevice; | 
|  | else | 
|  | { | 
|  | VkLayerInstanceDispatchTable **ppDisp = (VkLayerInstanceDispatchTable **) instance; | 
|  | VkLayerInstanceDispatchTable* pTable = tableInstanceMap[*ppDisp]; | 
|  | if (pTable->GetInstanceProcAddr == NULL) | 
|  | return NULL; | 
|  | return pTable->GetInstanceProcAddr(instance, pName); | 
|  | } | 
|  |  | 
|  | } |