/* * 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. * * Authors: * Chia-I Wu * Jon Ashburn * Courtney Goeltzenleuchter * Ian Elliott */ #define _GNU_SOURCE #include #include #include #include #include #include #if defined(WIN32) #include "dirent_on_windows.h" #else // WIN32 #include #endif // WIN32 #include "loader_platform.h" #include "loader.h" #include "wsi_lunarg.h" #include "gpa_helper.h" #include "table_ops.h" #include "debug_report.h" #include "vkIcd.h" // The following is #included again to catch certain OS-specific functions // being used: #include "loader_platform.h" void loader_add_to_ext_list( struct loader_extension_list *ext_list, uint32_t prop_list_count, const struct loader_extension_property *prop_list); static loader_platform_dl_handle loader_add_layer_lib( const char *chain_type, struct loader_extension_property *ext_prop); static void loader_remove_layer_lib( struct loader_instance *inst, struct loader_extension_property *ext_prop); static void loader_deactivate_instance_layers(struct loader_instance *instance); /* TODO: do we need to lock around access to linked lists and such? */ struct loader_struct loader = {0}; VkLayerInstanceDispatchTable instance_disp = { .GetInstanceProcAddr = vkGetInstanceProcAddr, .CreateInstance = loader_CreateInstance, .DestroyInstance = loader_DestroyInstance, .EnumeratePhysicalDevices = loader_EnumeratePhysicalDevices, .GetPhysicalDeviceInfo = loader_GetPhysicalDeviceInfo, .CreateDevice = loader_CreateDevice, .GetGlobalExtensionInfo = vkGetGlobalExtensionInfo, .GetPhysicalDeviceExtensionInfo = vkGetPhysicalDeviceExtensionInfo, .GetMultiDeviceCompatibility = loader_GetMultiDeviceCompatibility, .GetDisplayInfoWSI = loader_GetDisplayInfoWSI, .DbgCreateMsgCallback = loader_DbgCreateMsgCallback, .DbgDestroyMsgCallback = loader_DbgDestroyMsgCallback, }; LOADER_PLATFORM_THREAD_ONCE_DECLARATION(once_icd); LOADER_PLATFORM_THREAD_ONCE_DECLARATION(once_layer); LOADER_PLATFORM_THREAD_ONCE_DECLARATION(once_exts); #if defined(WIN32) char *loader_get_registry_string(const HKEY hive, const LPCTSTR sub_key, const char *value) { DWORD access_flags = KEY_QUERY_VALUE; DWORD value_type; HKEY key; VkResult rtn_value; char *rtn_str = NULL; DWORD rtn_len = 0; size_t allocated_len = 0; rtn_value = RegOpenKeyEx(hive, sub_key, 0, access_flags, &key); if (rtn_value != ERROR_SUCCESS) { // We didn't find the key. Try the 32-bit hive (where we've seen the // key end up on some people's systems): access_flags |= KEY_WOW64_32KEY; rtn_value = RegOpenKeyEx(hive, sub_key, 0, access_flags, &key); if (rtn_value != ERROR_SUCCESS) { // We still couldn't find the key, so give up: return NULL; } } rtn_value = RegQueryValueEx(key, value, NULL, &value_type, (PVOID) rtn_str, (LPDWORD) &rtn_len); if (rtn_value == ERROR_SUCCESS) { // If we get to here, we found the key, and need to allocate memory // large enough for rtn_str, and query again: allocated_len = rtn_len + 4; rtn_str = malloc(allocated_len); rtn_value = RegQueryValueEx(key, value, NULL, &value_type, (PVOID) rtn_str, (LPDWORD) &rtn_len); if (rtn_value == ERROR_SUCCESS) { // We added 4 extra bytes to rtn_str, so that we can ensure that // the string is NULL-terminated (albeit, in a brute-force manner): rtn_str[allocated_len-1] = '\0'; } else { // This should never occur, but in case it does, clean up: free(rtn_str); rtn_str = NULL; } } // else - shouldn't happen, but if it does, return rtn_str, which is NULL // Close the registry key that was opened: RegCloseKey(key); return rtn_str; } // For ICD developers, look in the registry, and look for an environment // variable for a path(s) where to find the ICD(s): static char *loader_get_registry_and_env(const char *env_var, const char *registry_value) { char *env_str = getenv(env_var); size_t env_len = (env_str == NULL) ? 0 : strlen(env_str); char *registry_str = NULL; size_t registry_len = 0; char *rtn_str = NULL; size_t rtn_len; registry_str = loader_get_registry_string(HKEY_LOCAL_MACHINE, "Software\\Vulkan", registry_value); registry_len = (registry_str) ? (DWORD) strlen(registry_str) : 0; rtn_len = env_len + registry_len + 1; if (rtn_len <= 2) { // We found neither the desired registry value, nor the environment // variable; return NULL: return NULL; } else { // We found something, and so we need to allocate memory for the string // to return: rtn_str = malloc(rtn_len); } if (registry_len == 0) { // We didn't find the desired registry value, and so we must have found // only the environment variable: _snprintf(rtn_str, rtn_len, "%s", env_str); } else if (env_str != NULL) { // We found both the desired registry value and the environment // variable, so concatenate them both: _snprintf(rtn_str, rtn_len, "%s;%s", registry_str, env_str); } else { // We must have only found the desired registry value: _snprintf(rtn_str, rtn_len, "%s", registry_str); } if (registry_str) { free(registry_str); } return(rtn_str); } #endif // WIN32 static void loader_log(VkFlags msg_type, int32_t msg_code, const char *format, ...) { char msg[256]; va_list ap; int ret; va_start(ap, format); ret = vsnprintf(msg, sizeof(msg), format, ap); if ((ret >= (int) sizeof(msg)) || ret < 0) { msg[sizeof(msg) - 1] = '\0'; } va_end(ap); #if defined(WIN32) OutputDebugString(msg); #endif fputs(msg, stderr); fputc('\n', stderr); } bool compare_vk_extension_properties(const VkExtensionProperties *op1, const VkExtensionProperties *op2) { return memcmp(op1, op2, sizeof(VkExtensionProperties)) == 0 ? true : false; } /* * Search the given ext_list for an extension * matching the given vk_ext_prop */ bool has_vk_extension_property( const VkExtensionProperties *vk_ext_prop, const struct loader_extension_list *ext_list) { for (uint32_t i = 0; i < ext_list->count; i++) { if (compare_vk_extension_properties(&ext_list->list[i].info, vk_ext_prop)) return true; } return false; } /* * Search the given ext_list for an extension * matching the given vk_ext_prop */ static struct loader_extension_property *get_extension_property_from_vkext( const VkExtensionProperties *vk_ext_prop, const struct loader_extension_list *ext_list) { for (uint32_t i = 0; i < ext_list->count; i++) { if (compare_vk_extension_properties(&ext_list->list[i].info, vk_ext_prop)) return &ext_list->list[i]; } return NULL; } static void get_global_extensions( const PFN_vkGetGlobalExtensionInfo fp_get, const char *lib_name, const enum extension_origin origin, struct loader_extension_list *ext_list) { uint32_t i, count; size_t siz = sizeof(count); struct loader_extension_property ext_props; VkResult res; res = fp_get(VK_EXTENSION_INFO_TYPE_COUNT, 0, &siz, &count); if (res != VK_SUCCESS) { loader_log(VK_DBG_REPORT_WARN_BIT, 0, "Error getting global extension count from ICD"); return; } siz = sizeof(VkExtensionProperties); for (i = 0; i < count; i++) { memset(&ext_props, 1, sizeof(ext_props)); res = fp_get(VK_EXTENSION_INFO_TYPE_PROPERTIES, i, &siz, &ext_props.info); if (res == VK_SUCCESS) { ext_props.hosted = false; ext_props.origin = origin; ext_props.lib_name = lib_name; loader_add_to_ext_list(ext_list, 1, &ext_props); } } return; } static void get_physical_device_layer_extensions( struct loader_instance *ptr_instance, VkPhysicalDevice physical_device, const uint32_t layer_index, struct loader_extension_list *ext_list) { uint32_t i, count; size_t siz = sizeof(count); VkResult res; loader_platform_dl_handle lib_handle; PFN_vkGetPhysicalDeviceExtensionInfo fp_get; struct loader_extension_property ext_props; if (!loader.scanned_layers[layer_index].physical_device_extensions_supported) { return; } ext_props.origin = VK_EXTENSION_ORIGIN_LAYER; ext_props.lib_name = loader.scanned_layers[layer_index].lib_name; char funcStr[256]; snprintf(funcStr, 256, "%sGetPhysicalDeviceExtensionInfo", ext_props.info.name); lib_handle = loader_add_layer_lib("device", &ext_props); fp_get = (PFN_vkGetPhysicalDeviceExtensionInfo) loader_platform_get_proc_address(lib_handle, "vkGetPhysicalDeviceExtensionInfo"); if (fp_get) { res = fp_get(physical_device, VK_EXTENSION_INFO_TYPE_COUNT, 0, &siz, &count); if (res == VK_SUCCESS) { siz = sizeof(VkExtensionProperties); for (i = 0; i < count; i++) { memset(&ext_props, 0, sizeof(ext_props)); res = fp_get(physical_device, VK_EXTENSION_INFO_TYPE_PROPERTIES, i, &siz, &ext_props.info); if (res == VK_SUCCESS && (ext_props.info.sType == VK_STRUCTURE_TYPE_EXTENSION_PROPERTIES)) { ext_props.hosted = false; ext_props.origin = VK_EXTENSION_ORIGIN_LAYER; ext_props.lib_name = loader.scanned_layers[layer_index].lib_name; loader_add_to_ext_list(ext_list, 1, &ext_props); } } } else { loader_log(VK_DBG_REPORT_WARN_BIT, 0, "Error getting physical device extension info count from Layer %s", ext_props.lib_name); } } loader_remove_layer_lib(ptr_instance, &ext_props); return; } static bool loader_init_ext_list(struct loader_extension_list *ext_info) { ext_info->capacity = 32 * sizeof(struct loader_extension_property); ext_info->list = malloc(ext_info->capacity); if (ext_info->list == NULL) { return false; } memset(ext_info->list, 0, ext_info->capacity); ext_info->count = 0; return true; } static void loader_destroy_ext_list(struct loader_extension_list *ext_info) { free(ext_info->list); ext_info->count = 0; ext_info->capacity = 0; } static void loader_add_vk_ext_to_ext_list( struct loader_extension_list *ext_list, uint32_t prop_list_count, const VkExtensionProperties *props, const struct loader_extension_list *search_list) { struct loader_extension_property *ext_prop; for (uint32_t i = 0; i < prop_list_count; i++) { // look for duplicates if (has_vk_extension_property(&props[i], ext_list)) { continue; } ext_prop = get_extension_property_from_vkext(&props[i], search_list); if (!ext_prop) { loader_log(VK_DBG_REPORT_WARN_BIT, 0, "Unable to find extension %s", props[i].name); continue; } loader_add_to_ext_list(ext_list, 1, ext_prop); } } /* * Append non-duplicate extension properties defined in prop_list * to the given ext_info list */ void loader_add_to_ext_list( struct loader_extension_list *ext_list, uint32_t prop_list_count, const struct loader_extension_property *props) { uint32_t i; struct loader_extension_property *cur_ext; if (ext_list->list == NULL || ext_list->capacity == 0) { loader_init_ext_list(ext_list); } if (ext_list->list == NULL) return; for (i = 0; i < prop_list_count; i++) { cur_ext = (struct loader_extension_property *) &props[i]; // look for duplicates if (has_vk_extension_property(&cur_ext->info, ext_list)) { continue; } // add to list at end // check for enough capacity if (ext_list->count * sizeof(struct loader_extension_property) >= ext_list->capacity) { // double capacity ext_list->capacity *= 2; ext_list->list = realloc(ext_list->list, ext_list->capacity); } memcpy(&ext_list->list[ext_list->count], cur_ext, sizeof(struct loader_extension_property)); ext_list->count++; } } /* * Search the search_list for any extension with * a name that matches the given ext_name. * Add all matching extensions to the found_list * Do not add if found VkExtensionProperties is already * on the found_list */ static void loader_search_ext_list_for_name( const char *ext_name, const struct loader_extension_list *search_list, struct loader_extension_list *found_list) { for (uint32_t i = 0; i < search_list->count; i++) { struct loader_extension_property *ext_prop = &search_list->list[i]; if (0 == strcmp(ext_prop->info.name, ext_name)) { /* Found an extension with the same name, add to found_list */ loader_add_to_ext_list(found_list, 1, &search_list->list[i]); } } } bool loader_is_extension_scanned(const VkExtensionProperties *ext_prop) { uint32_t i; for (i = 0; i < loader.global_extensions.count; i++) { if (compare_vk_extension_properties(&loader.global_extensions.list[i].info, ext_prop)) return true; } return false; } void loader_coalesce_extensions(void) { uint32_t i; struct loader_scanned_icds *icd_list = loader.scanned_icd_list; // traverse scanned icd list adding non-duplicate extensions to the list while (icd_list != NULL) { loader_add_to_ext_list(&loader.global_extensions, icd_list->global_extension_list.count, icd_list->global_extension_list.list); icd_list = icd_list->next; }; //Traverse layers list adding non-duplicate extensions to the list for (i = 0; i < loader.scanned_layer_count; i++) { loader_add_to_ext_list(&loader.global_extensions, loader.scanned_layers[i].global_extension_list.count, loader.scanned_layers[i].global_extension_list.list); } // Traverse loader's extensions, adding non-duplicate extensions to the list debug_report_add_instance_extensions(&loader.global_extensions); wsi_lunarg_add_instance_extensions(&loader.global_extensions); } static void loader_icd_destroy( struct loader_instance *ptr_inst, struct loader_icd *icd) { loader_platform_close_library(icd->scanned_icds->handle); ptr_inst->total_icd_count--; free(icd); } static struct loader_icd * loader_icd_create(const struct loader_scanned_icds *scanned) { struct loader_icd *icd; icd = malloc(sizeof(*icd)); if (!icd) return NULL; memset(icd, 0, sizeof(*icd)); icd->scanned_icds = scanned; return icd; } static struct loader_icd *loader_icd_add( struct loader_instance *ptr_inst, const struct loader_scanned_icds *scanned) { struct loader_icd *icd; icd = loader_icd_create(scanned); if (!icd) return NULL; /* prepend to the list */ icd->next = ptr_inst->icds; ptr_inst->icds = icd; ptr_inst->total_icd_count++; return icd; } static void loader_scanned_icd_add(const char *filename) { loader_platform_dl_handle handle; void *fp_create_inst; void *fp_get_global_ext_info; void *fp_get_device_ext_info; struct loader_scanned_icds *new_node; // Used to call: dlopen(filename, RTLD_LAZY); handle = loader_platform_open_library(filename); if (!handle) { loader_log(VK_DBG_REPORT_WARN_BIT, 0, loader_platform_open_library_error(filename)); return; } #define LOOKUP(func_ptr, func) do { \ func_ptr = (PFN_vk ##func) loader_platform_get_proc_address(handle, "vk" #func); \ if (!func_ptr) { \ loader_log(VK_DBG_REPORT_WARN_BIT, 0, loader_platform_get_proc_address_error("vk" #func)); \ return; \ } \ } while (0) LOOKUP(fp_create_inst, CreateInstance); LOOKUP(fp_get_global_ext_info, GetGlobalExtensionInfo); LOOKUP(fp_get_device_ext_info, GetPhysicalDeviceExtensionInfo); #undef LOOKUP new_node = (struct loader_scanned_icds *) malloc(sizeof(struct loader_scanned_icds) + strlen(filename) + 1); if (!new_node) { loader_log(VK_DBG_REPORT_WARN_BIT, 0, "Out of memory can't add icd"); return; } new_node->handle = handle; new_node->CreateInstance = fp_create_inst; new_node->GetGlobalExtensionInfo = fp_get_global_ext_info; loader_init_ext_list(&new_node->global_extension_list); loader_init_ext_list(&new_node->device_extension_list); new_node->next = loader.scanned_icd_list; new_node->lib_name = (char *) (new_node + 1); if (!new_node->lib_name) { loader_log(VK_DBG_REPORT_WARN_BIT, 0, "Out of memory can't add icd"); return; } strcpy(new_node->lib_name, filename); loader.scanned_icd_list = new_node; get_global_extensions( (PFN_vkGetGlobalExtensionInfo) fp_get_global_ext_info, new_node->lib_name, VK_EXTENSION_ORIGIN_ICD, &new_node->global_extension_list); } static void loader_icd_init_entrys(struct loader_icd *icd, struct loader_scanned_icds *scanned_icds) { /* initialize entrypoint function pointers */ #define LOOKUP(func) do { \ icd->func = (PFN_vk ##func) loader_platform_get_proc_address(scanned_icds->handle, "vk" #func); \ if (!icd->func) { \ loader_log(VK_DBG_REPORT_WARN_BIT, 0, loader_platform_get_proc_address_error("vk" #func)); \ return; \ } \ } while (0) /* could change this to use GetInstanceProcAddr in driver instead of dlsym */ LOOKUP(GetDeviceProcAddr); LOOKUP(DestroyInstance); LOOKUP(EnumeratePhysicalDevices); LOOKUP(GetPhysicalDeviceInfo); LOOKUP(CreateDevice); LOOKUP(GetPhysicalDeviceExtensionInfo); LOOKUP(GetMultiDeviceCompatibility); LOOKUP(GetDisplayInfoWSI); LOOKUP(DbgCreateMsgCallback); LOOKUP(DbgDestroyMsgCallback); #undef LOOKUP return; } /** * Try to \c loader_icd_scan VK driver(s). * * This function scans the default system path or path * specified by the \c LIBVK_DRIVERS_PATH environment variable in * order to find loadable VK ICDs with the name of libVK_*. * * \returns * void; but side effect is to set loader_icd_scanned to true */ void loader_icd_scan(void) { const char *p, *next; char *libPaths = NULL; DIR *sysdir; struct dirent *dent; char icd_library[1024]; char path[1024]; uint32_t len; #if defined(WIN32) bool must_free_libPaths; libPaths = loader_get_registry_and_env(DRIVER_PATH_ENV, DRIVER_PATH_REGISTRY_VALUE); if (libPaths != NULL) { must_free_libPaths = true; } else { must_free_libPaths = false; libPaths = DEFAULT_VK_DRIVERS_PATH; } #else // WIN32 if (geteuid() == getuid()) { /* Don't allow setuid apps to use the DRIVER_PATH_ENV env var: */ libPaths = getenv(DRIVER_PATH_ENV); } if (libPaths == NULL) { libPaths = DEFAULT_VK_DRIVERS_PATH; } #endif // WIN32 for (p = libPaths; *p; p = next) { next = strchr(p, PATH_SEPERATOR); if (next == NULL) { len = (uint32_t) strlen(p); next = p + len; } else { len = (uint32_t) (next - p); sprintf(path, "%.*s", (len > sizeof(path) - 1) ? (int) sizeof(path) - 1 : len, p); p = path; next++; } // TODO/TBD: Do we want to do this on Windows, or just let Windows take // care of its own search path (which it apparently has)? sysdir = opendir(p); if (sysdir) { dent = readdir(sysdir); while (dent) { /* Look for ICDs starting with VK_DRIVER_LIBRARY_PREFIX and * ending with VK_LIBRARY_SUFFIX */ if (!strncmp(dent->d_name, VK_DRIVER_LIBRARY_PREFIX, VK_DRIVER_LIBRARY_PREFIX_LEN)) { uint32_t nlen = (uint32_t) strlen(dent->d_name); const char *suf = dent->d_name + nlen - VK_LIBRARY_SUFFIX_LEN; if ((nlen > VK_LIBRARY_SUFFIX_LEN) && !strncmp(suf, VK_LIBRARY_SUFFIX, VK_LIBRARY_SUFFIX_LEN)) { snprintf(icd_library, 1024, "%s" DIRECTORY_SYMBOL "%s", p,dent->d_name); loader_scanned_icd_add(icd_library); } } dent = readdir(sysdir); } closedir(sysdir); } } #if defined(WIN32) // Free any allocated memory: if (must_free_libPaths) { free(libPaths); } #endif // WIN32 // Note that we've scanned for ICDs: loader.icds_scanned = true; } void layer_lib_scan(void) { const char *p, *next; char *libPaths = NULL; DIR *curdir; struct dirent *dent; size_t len, i; char temp_str[1024]; uint32_t count; PFN_vkGetGlobalExtensionInfo fp_get_ext; #if defined(WIN32) bool must_free_libPaths; libPaths = loader_get_registry_and_env(LAYERS_PATH_ENV, LAYERS_PATH_REGISTRY_VALUE); if (libPaths != NULL) { must_free_libPaths = true; } else { must_free_libPaths = false; libPaths = DEFAULT_VK_LAYERS_PATH; } #else // WIN32 if (geteuid() == getuid()) { /* Don't allow setuid apps to use the DRIVER_PATH_ENV env var: */ libPaths = getenv(LAYERS_PATH_ENV); } if (libPaths == NULL) { libPaths = DEFAULT_VK_LAYERS_PATH; } #endif // WIN32 if (libPaths == NULL) { // Have no paths to search: return; } len = strlen(libPaths); loader.layer_dirs = malloc(len+1); if (loader.layer_dirs == NULL) { free(libPaths); return; } // Alloc passed, so we know there is enough space to hold the string strcpy(loader.layer_dirs, libPaths); #if defined(WIN32) // Free any allocated memory: if (must_free_libPaths) { free(libPaths); must_free_libPaths = false; } #endif // WIN32 libPaths = loader.layer_dirs; /* cleanup any previously scanned libraries */ for (i = 0; i < loader.scanned_layer_count; i++) { if (loader.scanned_layers[i].lib_name != NULL) free(loader.scanned_layers[i].lib_name); loader_destroy_ext_list(&loader.scanned_layers[i].global_extension_list); loader.scanned_layers[i].lib_name = NULL; } loader.scanned_layer_count = 0; count = 0; for (p = libPaths; *p; p = next) { next = strchr(p, PATH_SEPERATOR); if (next == NULL) { len = (uint32_t) strlen(p); next = p + len; } else { len = (uint32_t) (next - p); *(char *) next = '\0'; next++; } curdir = opendir(p); if (curdir) { dent = readdir(curdir); while (dent) { /* Look for layers starting with VK_LAYER_LIBRARY_PREFIX and * ending with VK_LIBRARY_SUFFIX */ if (!strncmp(dent->d_name, VK_LAYER_LIBRARY_PREFIX, VK_LAYER_LIBRARY_PREFIX_LEN)) { uint32_t nlen = (uint32_t) strlen(dent->d_name); const char *suf = dent->d_name + nlen - VK_LIBRARY_SUFFIX_LEN; if ((nlen > VK_LIBRARY_SUFFIX_LEN) && !strncmp(suf, VK_LIBRARY_SUFFIX, VK_LIBRARY_SUFFIX_LEN)) { loader_platform_dl_handle handle; snprintf(temp_str, sizeof(temp_str), "%s" DIRECTORY_SYMBOL "%s",p,dent->d_name); // Used to call: dlopen(temp_str, RTLD_LAZY) if ((handle = loader_platform_open_library(temp_str)) == NULL) { dent = readdir(curdir); continue; } /* TODO: Remove fixed count */ if (count == MAX_LAYER_LIBRARIES) { loader_log(VK_DBG_REPORT_ERROR_BIT, 0, "%s ignored: max layer libraries exceed", temp_str); break; } fp_get_ext = loader_platform_get_proc_address(handle, "vkGetGlobalExtensionInfo"); if (!fp_get_ext) { loader_log(VK_DBG_REPORT_WARN_BIT, 0, "Couldn't dlsym vkGetGlobalExtensionInfo from library %s", temp_str); dent = readdir(curdir); loader_platform_close_library(handle); continue; } loader.scanned_layers[count].lib_name = malloc(strlen(temp_str) + 1); if (loader.scanned_layers[count].lib_name == NULL) { loader_log(VK_DBG_REPORT_ERROR_BIT, 0, "%s ignored: out of memory", temp_str); break; } strcpy(loader.scanned_layers[count].lib_name, temp_str); get_global_extensions( fp_get_ext, loader.scanned_layers[count].lib_name, VK_EXTENSION_ORIGIN_LAYER, &loader.scanned_layers[count].global_extension_list); fp_get_ext = loader_platform_get_proc_address(handle, "vkGetPhysicalDeviceExtensionInfo"); if (fp_get_ext) { loader.scanned_layers[count].physical_device_extensions_supported = true; } count++; loader_platform_close_library(handle); } } dent = readdir(curdir); } // while (dir_entry) if (count == MAX_LAYER_LIBRARIES) break; closedir(curdir); } // if (curdir)) } // for (libpaths) loader.scanned_layer_count = count; loader.layers_scanned = true; } static void* VKAPI loader_gpa_instance_internal(VkInstance inst, const char * pName) { // inst is not wrapped if (inst == VK_NULL_HANDLE) { return NULL; } VkLayerInstanceDispatchTable* disp_table = * (VkLayerInstanceDispatchTable **) inst; void *addr; if (!strcmp(pName, "vkGetInstanceProcAddr")) return (void *) loader_gpa_instance_internal; if (disp_table == NULL) return NULL; addr = loader_lookup_instance_dispatch_table(disp_table, pName); if (addr) { return addr; } if (disp_table->GetInstanceProcAddr == NULL) { return NULL; } return disp_table->GetInstanceProcAddr(inst, pName); } struct loader_icd * loader_get_icd(const VkBaseLayerObject *gpu, uint32_t *gpu_index) { /* * NOTE: at this time icd->gpus is pointing to wrapped GPUs, but no where else * are wrapped gpus used. Should go away. The incoming gpu is NOT wrapped so * need to test it against the wrapped GPU's base object. */ for (struct loader_instance *inst = loader.instances; inst; inst = inst->next) { for (struct loader_icd *icd = inst->icds; icd; icd = icd->next) { for (uint32_t i = 0; i < icd->gpu_count; i++) if ((icd->gpus + i) == gpu || (void*)(icd->gpus +i)->baseObject == gpu) { *gpu_index = i; return icd; } } } return NULL; } static bool loader_layers_activated(const struct loader_icd *icd, const uint32_t gpu_index) { if (icd->layer_count[gpu_index]) return true; else return false; } static loader_platform_dl_handle loader_add_layer_lib( const char *chain_type, struct loader_extension_property *ext_prop) { struct loader_lib_info *new_layer_lib_list, *my_lib; /* Only loader layer libraries here */ if (ext_prop->origin != VK_EXTENSION_ORIGIN_LAYER) { return NULL; } for (uint32_t i = 0; i < loader.loaded_layer_lib_count; i++) { if (strcmp(loader.loaded_layer_lib_list[i].lib_name, ext_prop->lib_name) == 0) { /* Have already loaded this library, just increment ref count */ loader.loaded_layer_lib_list[i].ref_count++; loader_log(VK_DBG_REPORT_INFO_BIT, 0, "%s Chain: Increment layer reference count for layer library %s", chain_type, ext_prop->lib_name); return loader.loaded_layer_lib_list[i].lib_handle; } } /* Haven't seen this library so load it */ new_layer_lib_list = realloc(loader.loaded_layer_lib_list, (loader.loaded_layer_lib_count + 1) * sizeof(struct loader_lib_info)); if (!new_layer_lib_list) { loader_log(VK_DBG_REPORT_ERROR_BIT, 0, "loader: malloc failed"); return NULL; } my_lib = &new_layer_lib_list[loader.loaded_layer_lib_count]; /* NOTE: We require that the extension property be immutable */ my_lib->lib_name = ext_prop->lib_name; my_lib->ref_count = 0; my_lib->lib_handle = NULL; if ((my_lib->lib_handle = loader_platform_open_library(my_lib->lib_name)) == NULL) { loader_log(VK_DBG_REPORT_ERROR_BIT, 0, loader_platform_open_library_error(my_lib->lib_name)); return NULL; } else { loader_log(VK_DBG_REPORT_INFO_BIT, 0, "Chain: %s: Loading layer library %s", chain_type, ext_prop->lib_name); } loader.loaded_layer_lib_count++; loader.loaded_layer_lib_list = new_layer_lib_list; my_lib->ref_count++; return my_lib->lib_handle; } static void loader_remove_layer_lib( struct loader_instance *inst, struct loader_extension_property *ext_prop) { uint32_t idx; struct loader_lib_info *new_layer_lib_list, *my_lib; /* Only loader layer libraries here */ if (ext_prop->origin != VK_EXTENSION_ORIGIN_LAYER) { return; } for (uint32_t i = 0; i < loader.loaded_layer_lib_count; i++) { if (strcmp(loader.loaded_layer_lib_list[i].lib_name, ext_prop->lib_name) == 0) { /* found matching library */ idx = i; my_lib = &loader.loaded_layer_lib_list[i]; break; } } my_lib->ref_count--; inst->layer_count--; if (my_lib->ref_count > 0) { loader_log(VK_DBG_REPORT_INFO_BIT, 0, "Decrement reference count for layer library %s", ext_prop->lib_name); return; } loader_platform_close_library(my_lib->lib_handle); loader_log(VK_DBG_REPORT_INFO_BIT, 0, "Unloading layer library %s", ext_prop->lib_name); /* Need to remove unused library from list */ new_layer_lib_list = malloc((loader.loaded_layer_lib_count - 1) * sizeof(struct loader_lib_info)); if (!new_layer_lib_list) { loader_log(VK_DBG_REPORT_ERROR_BIT, 0, "loader: malloc failed"); return; } if (idx > 0) { /* Copy records before idx */ memcpy(new_layer_lib_list, &loader.loaded_layer_lib_list[0], sizeof(struct loader_lib_info) * idx); } if (idx < (loader.loaded_layer_lib_count - 1)) { /* Copy records after idx */ memcpy(&new_layer_lib_list[idx], &loader.loaded_layer_lib_list[idx+1], sizeof(struct loader_lib_info) * (loader.loaded_layer_lib_count - idx - 1)); } free(loader.loaded_layer_lib_list); loader.loaded_layer_lib_count--; loader.loaded_layer_lib_list = new_layer_lib_list; } static void loader_add_layer_env( struct loader_extension_list *ext_list, const struct loader_extension_list *search_list) { char *layerEnv; uint32_t len; char *p, *pOrig, *next, *name; #if defined(WIN32) layerEnv = loader_get_registry_and_env(LAYER_NAMES_ENV, LAYER_NAMES_REGISTRY_VALUE); #else // WIN32 layerEnv = getenv(LAYER_NAMES_ENV); #endif // WIN32 if (layerEnv == NULL) { return; } p = malloc(strlen(layerEnv) + 1); if (p == NULL) { #if defined(WIN32) free(layerEnv); #endif // WIN32 return; } strcpy(p, layerEnv); #if defined(WIN32) free(layerEnv); #endif // WIN32 pOrig = p; while (p && *p ) { //memset(&lib_name[0], 0, sizeof(const char *) * MAX_LAYER_LIBRARIES); next = strchr(p, PATH_SEPERATOR); if (next == NULL) { len = (uint32_t) strlen(p); next = p + len; } else { len = (uint32_t) (next - p); *(char *) next = '\0'; next++; } name = basename(p); loader_search_ext_list_for_name(name, search_list, ext_list); p = next; } free(pOrig); return; } static void loader_deactivate_instance_layers(struct loader_instance *instance) { if (!instance->layer_count) { return; } /* Create instance chain of enabled layers */ for (uint32_t i = 0; i < instance->enabled_instance_extensions.count; i++) { struct loader_extension_property *ext_prop = &instance->enabled_instance_extensions.list[i]; if (ext_prop->origin == VK_EXTENSION_ORIGIN_ICD) { continue; } loader_remove_layer_lib(instance, ext_prop); instance->layer_count--; } free(instance->wrappedInstance); } void loader_enable_instance_layers(struct loader_instance *inst) { if (inst == NULL) return; /* Add any layers specified in the environment first */ loader_add_layer_env(&inst->enabled_instance_extensions, &loader.global_extensions); /* Add layers / extensions specified by the application */ loader_add_vk_ext_to_ext_list( &inst->enabled_instance_extensions, inst->app_extension_count, inst->app_extension_props, &loader.global_extensions); } uint32_t loader_activate_instance_layers(struct loader_instance *inst) { uint32_t layer_idx; if (inst == NULL) return 0; // NOTE inst is unwrapped at this point in time VkObject baseObj = (VkObject) inst; VkObject nextObj = (VkObject) inst; VkBaseLayerObject *nextInstObj; PFN_vkGetInstanceProcAddr nextGPA = loader_gpa_instance_internal; /* * Figure out how many actual layers will need to be wrapped. */ inst->layer_count = 0; for (uint32_t i = 0; i < inst->enabled_instance_extensions.count; i++) { struct loader_extension_property *ext_prop = &inst->enabled_instance_extensions.list[i]; if (ext_prop->origin == VK_EXTENSION_ORIGIN_LAYER) { inst->layer_count++; } } if (!inst->layer_count) { return 0; } inst->wrappedInstance = malloc(sizeof(VkBaseLayerObject) * inst->layer_count); if (!inst->wrappedInstance) { loader_log(VK_DBG_REPORT_ERROR_BIT, 0, "Failed to malloc Instance objects for layer"); return 0; } /* Create instance chain of enabled layers */ layer_idx = inst->layer_count - 1; for (int32_t i = inst->enabled_instance_extensions.count - 1; i >= 0; i--) { struct loader_extension_property *ext_prop = &inst->enabled_instance_extensions.list[i]; loader_platform_dl_handle lib_handle; /* * For global exenstions implemented within the loader (i.e. WSI, DEBUG_REPORT * the extension must provide two entry points for the loader to use: * - "trampoline" entry point - this is the address returned by GetProcAddr * and will always do what's necessary to support a global call. * - "terminator" function - this function will be put at the end of the * instance chain and will contain the necessary logica to call / process * the extension for the appropriate ICDs that are available. * There is no generic mechanism for including these functions, the references * must be placed into the appropriate loader entry points. * GetInstanceProcAddr: call extension GetInstanceProcAddr to check for GetProcAddr requests * loader_coalesce_extensions(void) - add extension records to the list of global * extension available to the app. * instance_disp - add function pointer for terminator function to this array. * The extension itself should be in a separate file that will be * linked directly with the loader. * Note: An extension's Get*ProcAddr should not return a function pointer for * any extension entry points until the extension has been enabled. * To do this requires a different behavior from Get*ProcAddr functions implemented * in layers. * The very first call to a layer will be it's Get*ProcAddr function requesting * the layer's vkGet*ProcAddr. The layer should intialize it's internal dispatch table * with the wrapped object given (either Instance or Device) and return the layer's * Get*ProcAddr function. The layer should also use this opportunity to record the * baseObject so that it can find the correct local dispatch table on future calls. * Subsequent calls to Get*ProcAddr, CreateInstance, CreateDevice * will not use a wrapped object and must look up their local dispatch table from * the given baseObject. */ if (ext_prop->origin != VK_EXTENSION_ORIGIN_LAYER) { continue; } nextInstObj = (inst->wrappedInstance + layer_idx); nextInstObj->pGPA = nextGPA; nextInstObj->baseObject = baseObj; nextInstObj->nextObject = nextObj; nextObj = (VkObject) nextInstObj; char funcStr[256]; snprintf(funcStr, 256, "%sGetInstanceProcAddr", ext_prop->info.name); lib_handle = loader_add_layer_lib("instance", ext_prop); if ((nextGPA = (PFN_vkGetInstanceProcAddr) loader_platform_get_proc_address(lib_handle, funcStr)) == NULL) nextGPA = (PFN_vkGetInstanceProcAddr) loader_platform_get_proc_address(lib_handle, "vkGetInstanceProcAddr"); if (!nextGPA) { loader_log(VK_DBG_REPORT_ERROR_BIT, 0, "Failed to find vkGetInstanceProcAddr in layer %s", ext_prop->lib_name); continue; } loader_log(VK_DBG_REPORT_INFO_BIT, 0, "Insert instance layer library %s for extension: %s", ext_prop->lib_name, ext_prop->info.name); layer_idx--; } loader_init_instance_core_dispatch_table(inst->disp, nextGPA, (VkInstance) nextObj, (VkInstance) baseObj); return inst->layer_count; } void loader_activate_instance_layer_extensions(struct loader_instance *inst) { loader_init_instance_extension_dispatch_table(inst->disp, inst->disp->GetInstanceProcAddr, (VkInstance) inst->wrappedInstance); } void loader_enable_device_layers(struct loader_icd *icd, uint32_t gpu_index) { if (icd == NULL) return; /* Add any layers specified in the environment first */ loader_add_layer_env(&icd->enabled_device_extensions[gpu_index], &loader.global_extensions); /* Add layers / extensions specified by the application */ loader_add_vk_ext_to_ext_list( &icd->enabled_device_extensions[gpu_index], icd->app_extension_count[gpu_index], icd->app_extension_props[gpu_index], &loader.global_extensions); } extern uint32_t loader_activate_device_layers( VkDevice device, struct loader_icd *icd, uint32_t gpu_index, uint32_t ext_count, const VkExtensionProperties *ext_props) { uint32_t count; uint32_t layer_idx; if (!icd) return 0; assert(gpu_index < MAX_GPUS_FOR_LAYER); /* activate any layer libraries */ if (!loader_layers_activated(icd, gpu_index)) { VkObject nextObj = (VkObject) device; VkObject baseObj = nextObj; VkBaseLayerObject *nextGpuObj; PFN_vkGetDeviceProcAddr nextGPA = icd->GetDeviceProcAddr; count = 0; for (uint32_t i = 0; i < icd->enabled_device_extensions[gpu_index].count; i++) { struct loader_extension_property *ext_prop = &icd->enabled_device_extensions[gpu_index].list[i]; if (ext_prop->origin == VK_EXTENSION_ORIGIN_LAYER) { count++; } } if (!count) return 0; icd->layer_count[gpu_index] = count; icd->wrappedGpus[gpu_index] = malloc(sizeof(VkBaseLayerObject) * icd->layer_count[gpu_index]); if (! icd->wrappedGpus[gpu_index]) { loader_log(VK_DBG_REPORT_ERROR_BIT, 0, "Failed to malloc Gpu objects for layer"); return 0; } layer_idx = count - 1; for (int32_t i = icd->layer_count[gpu_index] - 1; i >= 0; i--) { struct loader_extension_property *ext_prop = &icd->enabled_device_extensions[gpu_index].list[i]; loader_platform_dl_handle lib_handle; if (ext_prop->origin != VK_EXTENSION_ORIGIN_LAYER) { continue; } nextGpuObj = (icd->wrappedGpus[gpu_index] + i); nextGpuObj->pGPA = nextGPA; nextGpuObj->baseObject = baseObj; nextGpuObj->nextObject = nextObj; nextObj = (VkObject) nextGpuObj; char funcStr[256]; snprintf(funcStr, 256, "%sGetDeviceProcAddr", ext_prop->info.name); lib_handle = loader_add_layer_lib("device", ext_prop); if ((nextGPA = (PFN_vkGetDeviceProcAddr) loader_platform_get_proc_address(lib_handle, funcStr)) == NULL) nextGPA = (PFN_vkGetDeviceProcAddr) loader_platform_get_proc_address(lib_handle, "vkGetDeviceProcAddr"); if (!nextGPA) { loader_log(VK_DBG_REPORT_ERROR_BIT, 0, "Failed to find vkGetDeviceProcAddr in layer %s", ext_prop->info.name); continue; } loader_log(VK_DBG_REPORT_INFO_BIT, 0, "Insert device layer library %s for extension: %s", ext_prop->lib_name, ext_prop->info.name); layer_idx--; } loader_init_device_dispatch_table(icd->loader_dispatch + gpu_index, nextGPA, (VkPhysicalDevice) nextObj, (VkPhysicalDevice) baseObj); } else { // TODO: Check that active layers match requested? } return icd->layer_count[gpu_index]; } VkResult loader_CreateInstance( const VkInstanceCreateInfo* pCreateInfo, VkInstance* pInstance) { struct loader_instance *ptr_instance = *(struct loader_instance **) pInstance; struct loader_scanned_icds *scanned_icds; struct loader_icd *icd; VkResult res; scanned_icds = loader.scanned_icd_list; while (scanned_icds) { icd = loader_icd_add(ptr_instance, scanned_icds); if (icd) { res = scanned_icds->CreateInstance(pCreateInfo, &(icd->instance)); if (res != VK_SUCCESS) { ptr_instance->icds = ptr_instance->icds->next; loader_icd_destroy(ptr_instance, icd); icd->instance = VK_NULL_HANDLE; loader_log(VK_DBG_REPORT_WARN_BIT, 0, "ICD ignored: failed to CreateInstance on device"); } else { loader_icd_init_entrys(icd, scanned_icds); } } scanned_icds = scanned_icds->next; } if (ptr_instance->icds == NULL) { return VK_ERROR_INCOMPATIBLE_DRIVER; } return res; } VkResult loader_DestroyInstance( VkInstance instance) { struct loader_instance *ptr_instance = (struct loader_instance *) instance; struct loader_icd *icds = ptr_instance->icds; VkResult res; // Remove this instance from the list of instances: struct loader_instance *prev = NULL; struct loader_instance *next = loader.instances; while (next != NULL) { if (next == ptr_instance) { // Remove this instance from the list: free(ptr_instance->app_extension_props); if (prev) prev->next = next->next; else loader.instances = next->next; break; } prev = next; next = next->next; } if (next == NULL) { // This must be an invalid instance handle or empty list return VK_ERROR_INVALID_HANDLE; } loader_deactivate_instance_layers(ptr_instance); loader_destroy_ext_list(&ptr_instance->enabled_instance_extensions); while (icds) { if (icds->instance) { res = icds->DestroyInstance(icds->instance); if (res != VK_SUCCESS) loader_log(VK_DBG_REPORT_WARN_BIT, 0, "ICD ignored: failed to DestroyInstance on device"); } icds->instance = VK_NULL_HANDLE; icds = icds->next; } free(ptr_instance); return VK_SUCCESS; } VkResult loader_init_physical_device_info( struct loader_instance *ptr_instance) { struct loader_icd *icd; uint32_t n, count = 0; VkResult res = VK_ERROR_UNKNOWN; icd = ptr_instance->icds; while (icd) { res = icd->EnumeratePhysicalDevices(icd->instance, &n, NULL); if (res != VK_SUCCESS) return res; icd->gpu_count = n; count += n; icd = icd->next; } ptr_instance->total_gpu_count = count; VkPhysicalDevice* gpus; gpus = malloc( sizeof(VkPhysicalDevice) * count); if (!gpus) { return VK_ERROR_OUT_OF_HOST_MEMORY; } icd = ptr_instance->icds; while (icd) { VkBaseLayerObject * wrapped_gpus; PFN_vkGetDeviceProcAddr get_proc_addr = icd->GetDeviceProcAddr; n = icd->gpu_count; res = icd->EnumeratePhysicalDevices( icd->instance, &n, gpus); if (res == VK_SUCCESS && n) { wrapped_gpus = (VkBaseLayerObject*) malloc(n * sizeof(VkBaseLayerObject)); if (!wrapped_gpus) { /* TODO: Add cleanup code here */ return VK_ERROR_OUT_OF_HOST_MEMORY; } icd->gpus = wrapped_gpus; icd->loader_dispatch = (VkLayerDispatchTable *) malloc(n * sizeof(VkLayerDispatchTable)); for (unsigned int i = 0; i < n; i++) { (wrapped_gpus + i)->baseObject = gpus[i]; (wrapped_gpus + i)->pGPA = get_proc_addr; (wrapped_gpus + i)->nextObject = gpus[i]; loader_init_device_dispatch_table(icd->loader_dispatch + i, get_proc_addr, gpus[i], gpus[i]); loader_init_dispatch(gpus[i], ptr_instance->disp); if (!loader_init_ext_list(&icd->device_extension_cache[i])) { /* TODO: Add cleanup code here */ res = VK_ERROR_OUT_OF_HOST_MEMORY; } if (res == VK_SUCCESS && icd->GetPhysicalDeviceExtensionInfo) { size_t data_size; uint32_t extension_count; data_size = sizeof(extension_count); res = icd->GetPhysicalDeviceExtensionInfo(gpus[i], VK_EXTENSION_INFO_TYPE_COUNT, 0, &data_size, &extension_count); if (data_size == sizeof(extension_count) && res == VK_SUCCESS) { struct loader_extension_property ext_props; /* Gather all the ICD extensions */ for (uint32_t extension_id = 0; extension_id < extension_count; extension_id++) { data_size = sizeof(VkExtensionProperties); res = icd->GetPhysicalDeviceExtensionInfo(gpus[i], VK_EXTENSION_INFO_TYPE_PROPERTIES, extension_id, &data_size, &ext_props.info); if (data_size == sizeof(VkExtensionProperties) && res == VK_SUCCESS) { ext_props.hosted = false; ext_props.origin = VK_EXTENSION_ORIGIN_ICD; ext_props.lib_name = icd->scanned_icds->lib_name; loader_add_to_ext_list(&icd->device_extension_cache[i], 1, &ext_props); } } // Traverse layers list adding non-duplicate extensions to the list for (uint32_t l = 0; l < loader.scanned_layer_count; l++) { get_physical_device_layer_extensions(ptr_instance, gpus[i], l, &icd->device_extension_cache[i]); } } } if (res != VK_SUCCESS) { /* clean up any extension lists previously created before this request failed */ for (uint32_t j = 0; j < i; j++) { loader_destroy_ext_list(&icd->device_extension_cache[i]); } return res; } } count += n; } icd = icd->next; } return VK_SUCCESS; } VkResult loader_EnumeratePhysicalDevices( VkInstance instance, uint32_t* pPhysicalDeviceCount, VkPhysicalDevice* pPhysicalDevices) { uint32_t index = 0; struct loader_instance *ptr_instance = (struct loader_instance *) instance; struct loader_icd *icd = ptr_instance->icds; if (ptr_instance->total_gpu_count == 0) { loader_init_physical_device_info(ptr_instance); } *pPhysicalDeviceCount = ptr_instance->total_gpu_count; if (!pPhysicalDevices) { return VK_SUCCESS; } while (icd) { assert((index + icd->gpu_count) <= *pPhysicalDeviceCount); for (uint32_t i = 0; i < icd->gpu_count; i++) { memcpy(&pPhysicalDevices[index], &icd->gpus[i].baseObject, sizeof(VkPhysicalDevice)); } index += icd->gpu_count; icd = icd->next; } return VK_SUCCESS; } VkResult loader_GetPhysicalDeviceInfo( VkPhysicalDevice gpu, VkPhysicalDeviceInfoType infoType, size_t* pDataSize, void* pData) { uint32_t gpu_index; struct loader_icd *icd = loader_get_icd((const VkBaseLayerObject *) gpu, &gpu_index); VkResult res = VK_ERROR_INITIALIZATION_FAILED; if (icd->GetPhysicalDeviceInfo) res = icd->GetPhysicalDeviceInfo(gpu, infoType, pDataSize, pData); return res; } VkResult loader_CreateDevice( VkPhysicalDevice gpu, const VkDeviceCreateInfo* pCreateInfo, VkDevice* pDevice) { uint32_t gpu_index; struct loader_icd *icd = loader_get_icd((const VkBaseLayerObject *) gpu, &gpu_index); VkResult res = VK_ERROR_INITIALIZATION_FAILED; if (icd->CreateDevice) { res = icd->CreateDevice(gpu, pCreateInfo, pDevice); if (res != VK_SUCCESS) { return res; } VkLayerDispatchTable *dev_disp = icd->loader_dispatch + gpu_index; loader_init_dispatch(*pDevice, dev_disp); icd->app_extension_count[gpu_index] = pCreateInfo->extensionCount; icd->app_extension_props[gpu_index] = (VkExtensionProperties *) malloc(sizeof(VkExtensionProperties) * pCreateInfo->extensionCount); if (icd->app_extension_props[gpu_index] == NULL && (icd->app_extension_count[gpu_index] > 0)) { return VK_ERROR_OUT_OF_HOST_MEMORY; } /* Make local copy of extension list */ if (icd->app_extension_count[gpu_index] > 0 && icd->app_extension_props[gpu_index] != NULL) { memcpy(icd->app_extension_props[gpu_index], pCreateInfo->pEnabledExtensions, sizeof(VkExtensionProperties) * pCreateInfo->extensionCount); } /* * Put together the complete list of extensions to enable * This includes extensions requested via environment variables. */ loader_enable_device_layers(icd, gpu_index); /* * Load the libraries needed by the extensions on the * enabled extension list. This will build the * device instance chain terminating with the * selected device. */ loader_activate_device_layers(*pDevice, icd, gpu_index, icd->app_extension_count[gpu_index], icd->app_extension_props[gpu_index]); } return res; } LOADER_EXPORT void * VKAPI vkGetInstanceProcAddr(VkInstance instance, const char * pName) { if (instance == VK_NULL_HANDLE) return NULL; void *addr; /* get entrypoint addresses that are global (in the loader)*/ addr = globalGetProcAddr(pName); if (addr) return addr; struct loader_instance *ptr_instance = (struct loader_instance *) instance; addr = debug_report_instance_gpa(ptr_instance, pName); if (addr) { return addr; } /* return any extension global entrypoints */ addr = wsi_lunarg_GetInstanceProcAddr(instance, pName); if (addr) return (ptr_instance->wsi_lunarg_enabled) ? addr : NULL; /* return the instance dispatch table entrypoint for extensions */ const VkLayerInstanceDispatchTable *disp_table = * (VkLayerInstanceDispatchTable **) instance; if (disp_table == NULL) return NULL; addr = loader_lookup_instance_dispatch_table(disp_table, pName); if (addr) return addr; return NULL; } LOADER_EXPORT void * VKAPI vkGetDeviceProcAddr(VkDevice device, const char * pName) { if (device == VK_NULL_HANDLE) { return NULL; } void *addr; /* for entrypoints that loader must handle (ie non-dispatchable or create object) make sure the loader entrypoint is returned */ addr = loader_non_passthrough_gpa(pName); if (addr) { return addr; } /* return any extension device entrypoints the loader knows about */ addr = wsi_lunarg_GetDeviceProcAddr(device, pName); if (addr) return addr; /* return the dispatch table entrypoint for the fastest case */ const VkLayerDispatchTable *disp_table = * (VkLayerDispatchTable **) device; if (disp_table == NULL) return NULL; addr = loader_lookup_device_dispatch_table(disp_table, pName); if (addr) return addr; else { if (disp_table->GetDeviceProcAddr == NULL) return NULL; return disp_table->GetDeviceProcAddr(device, pName); } } LOADER_EXPORT VkResult VKAPI vkGetGlobalExtensionInfo( VkExtensionInfoType infoType, uint32_t extensionIndex, size_t* pDataSize, void* pData) { uint32_t *count; /* Scan/discover all ICD libraries in a single-threaded manner */ loader_platform_thread_once(&once_icd, loader_icd_scan); /* get layer libraries in a single-threaded manner */ loader_platform_thread_once(&once_layer, layer_lib_scan); /* merge any duplicate extensions */ loader_platform_thread_once(&once_exts, loader_coalesce_extensions); 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 = loader.global_extensions.count; break; case VK_EXTENSION_INFO_TYPE_PROPERTIES: *pDataSize = sizeof(VkExtensionProperties); if (pData == NULL) return VK_SUCCESS; if (extensionIndex >= loader.global_extensions.count) return VK_ERROR_INVALID_VALUE; memcpy((VkExtensionProperties *) pData, &loader.global_extensions.list[extensionIndex], sizeof(VkExtensionProperties)); break; default: loader_log(VK_DBG_REPORT_WARN_BIT, 0, "Invalid infoType in vkGetGlobalExtensionInfo"); return VK_ERROR_INVALID_VALUE; }; return VK_SUCCESS; } LOADER_EXPORT VkResult VKAPI vkGetPhysicalDeviceExtensionInfo( VkPhysicalDevice gpu, VkExtensionInfoType infoType, uint32_t extensionIndex, size_t* pDataSize, void* pData) { uint32_t gpu_index; uint32_t *count; struct loader_icd *icd = loader_get_icd((const VkBaseLayerObject *) gpu, &gpu_index); 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 = icd->device_extension_cache[gpu_index].count; break; case VK_EXTENSION_INFO_TYPE_PROPERTIES: *pDataSize = sizeof(VkExtensionProperties); if (pData == NULL) return VK_SUCCESS; if (extensionIndex >= icd->device_extension_cache[gpu_index].count) return VK_ERROR_INVALID_VALUE; memcpy((VkExtensionProperties *) pData, &icd->device_extension_cache[gpu_index].list[extensionIndex], sizeof(VkExtensionProperties)); break; default: return VK_ERROR_INVALID_VALUE; }; return VK_SUCCESS; } VkResult loader_GetMultiDeviceCompatibility( VkPhysicalDevice gpu0, VkPhysicalDevice gpu1, VkPhysicalDeviceCompatibilityInfo* pInfo) { uint32_t gpu_index; struct loader_icd *icd = loader_get_icd((const VkBaseLayerObject *) gpu0, &gpu_index); VkResult res = VK_ERROR_INITIALIZATION_FAILED; if (icd->GetMultiDeviceCompatibility) res = icd->GetMultiDeviceCompatibility(gpu0, gpu1, pInfo); return res; }