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d4701211deeb675eea6d08ef647514299359f3be
third_party_vulkan-loader/loader/loader.c
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Mark Young d4701211de Loader single EnumPhysDev call through layers 
The loader trampoline previously would query all devices every time
vkEnumeratePhysicalDevices was called.
To do this, it would make two calls every time:
  - First, it would ignore the passed in user values
  - Second, it would query the total number of available devices.
  - Third, it would query the values for every available device

This resulted in layers reporting 2 vkEnumeratePhysicalDevices call for
every 1 the application made which could get very polluted in output.
It didn't break any functionality, just made things messy.

This change removes that behavior and adds a bunch of test cases to verify
nothing broke in the move.
2022-02-16 08:29:42 -07:00

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/*
*
* Copyright (c) 2014-2022 The Khronos Group Inc.
* Copyright (c) 2014-2022 Valve Corporation
* Copyright (c) 2014-2022 LunarG, Inc.
* Copyright (C) 2015 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Author: Jon Ashburn <jon@lunarg.com>
* Author: Courtney Goeltzenleuchter <courtney@LunarG.com>
* Author: Mark Young <marky@lunarg.com>
* Author: Lenny Komow <lenny@lunarg.com>
* Author: Charles Giessen <charles@lunarg.com>
*
*/
#include "loader.h"
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdbool.h>
#include <string.h>
#include <stddef.h>
#if defined(__APPLE__)
#include <CoreFoundation/CoreFoundation.h>
#include <sys/param.h>
#endif
// Time related functions
#include <time.h>
#include <sys/types.h>
#if defined(_WIN32)
#include "dirent_on_windows.h"
#else // _WIN32
#include <dirent.h>
#endif // _WIN32
#include "vulkan/vk_icd.h"
#include "allocation.h"
#include "cJSON.h"
#include "debug_utils.h"
#include "get_environment.h"
#include "gpa_helper.h"
#include "loader.h"
#include "log.h"
#include "murmurhash.h"
#include "vk_loader_platform.h"
#include "wsi.h"
#if defined(WIN32)
#include "loader_windows.h"
#endif
#ifdef LOADER_ENABLE_LINUX_SORT
// This header is currently only used when sorting Linux devices, so don't include it otherwise.
#include "loader_linux.h"
#endif // LOADER_ENABLE_LINUX_SORT
// Generated file containing all the extension data
#include "vk_loader_extensions.c"
struct loader_struct loader = {0};
struct activated_layer_info {
char *name;
char *manifest;
char *library;
bool is_implicit;
char *disable_env;
};
// thread safety lock for accessing global data structures such as "loader"
// all entrypoints on the instance chain need to be locked except GPA
// additionally CreateDevice and DestroyDevice needs to be locked
loader_platform_thread_mutex loader_lock;
loader_platform_thread_mutex loader_json_lock;
loader_platform_thread_mutex loader_preload_icd_lock;
// A list of ICDs that gets initialized when the loader does its global initialization. This list should never be used by anything
// other than EnumerateInstanceExtensionProperties(), vkDestroyInstance, and loader_release(). This list does not change
// functionality, but the fact that the libraries already been loaded causes any call that needs to load ICD libraries to speed up
// significantly. This can have a huge impact when making repeated calls to vkEnumerateInstanceExtensionProperties and
// vkCreateInstance.
static struct loader_icd_tramp_list scanned_icds;
LOADER_PLATFORM_THREAD_ONCE_DECLARATION(once_init);
// Wrapper around opendir so that the dirent_on_windows gets the instance it needs
// while linux opendir & readdir does not
DIR *loader_opendir(const struct loader_instance *instance, const char *name) {
#if defined(_WIN32)
return opendir(instance, name);
#else // _WIN32
return opendir(name);
#endif // _WIN32
}
int loader_closedir(const struct loader_instance *instance, DIR *dir) {
#if defined(_WIN32)
return closedir(instance, dir);
#else // _WIN32
return closedir(dir);
#endif // _WIN32
}
// Handle error from to library loading
void loader_handle_load_library_error(const struct loader_instance *inst, const char *filename,
enum loader_layer_library_status *lib_status) {
const char *error_message = loader_platform_open_library_error(filename);
// If the error is due to incompatible architecture (eg 32 bit vs 64 bit), report it with INFO level
// Discussed in Github issue 262 & 644
// "wrong ELF class" is a linux error, " with error 193" is a windows error
VkFlags err_flag = VULKAN_LOADER_ERROR_BIT;
if (strstr(error_message, "wrong ELF class:") != NULL || strstr(error_message, " with error 193") != NULL) {
err_flag = VULKAN_LOADER_INFO_BIT;
if (NULL != lib_status) {
*lib_status = LOADER_LAYER_LIB_ERROR_WRONG_BIT_TYPE;
}
} else if (NULL != lib_status) {
*lib_status = LOADER_LAYER_LIB_ERROR_FAILED_TO_LOAD;
}
loader_log(inst, err_flag, 0, error_message);
}
VKAPI_ATTR VkResult VKAPI_CALL vkSetInstanceDispatch(VkInstance instance, void *object) {
struct loader_instance *inst = loader_get_instance(instance);
if (!inst) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "vkSetInstanceDispatch: Can not retrieve Instance dispatch table.");
return VK_ERROR_INITIALIZATION_FAILED;
}
loader_set_dispatch(object, inst->disp);
return VK_SUCCESS;
}
VKAPI_ATTR VkResult VKAPI_CALL vkSetDeviceDispatch(VkDevice device, void *object) {
struct loader_device *dev;
struct loader_icd_term *icd_term = loader_get_icd_and_device(device, &dev, NULL);
if (NULL == icd_term) {
return VK_ERROR_INITIALIZATION_FAILED;
}
loader_set_dispatch(object, &dev->loader_dispatch);
return VK_SUCCESS;
}
void loader_free_layer_properties(const struct loader_instance *inst, struct loader_layer_properties *layer_properties) {
if (layer_properties->component_layer_names) {
loader_instance_heap_free(inst, layer_properties->component_layer_names);
}
if (layer_properties->override_paths) {
loader_instance_heap_free(inst, layer_properties->override_paths);
}
if (layer_properties->blacklist_layer_names) {
loader_instance_heap_free(inst, layer_properties->blacklist_layer_names);
}
if (layer_properties->app_key_paths) {
loader_instance_heap_free(inst, layer_properties->app_key_paths);
}
loader_destroy_generic_list(inst, (struct loader_generic_list *)&layer_properties->instance_extension_list);
if (layer_properties->device_extension_list.capacity > 0 && NULL != layer_properties->device_extension_list.list) {
for (uint32_t i = 0; i < layer_properties->device_extension_list.count; i++) {
struct loader_dev_ext_props *ext_props = &layer_properties->device_extension_list.list[i];
if (ext_props->entrypoint_count > 0) {
for (uint32_t j = 0; j < ext_props->entrypoint_count; j++) {
loader_instance_heap_free(inst, ext_props->entrypoints[j]);
}
loader_instance_heap_free(inst, ext_props->entrypoints);
}
}
}
loader_destroy_generic_list(inst, (struct loader_generic_list *)&layer_properties->device_extension_list);
// Make sure to clear out the removed layer, in case new layers are added in the previous location
memset(layer_properties, 0, sizeof(struct loader_layer_properties));
}
// Combine path elements, separating each element with the platform-specific
// directory separator, and save the combined string to a destination buffer,
// not exceeding the given length. Path elements are given as variable args,
// with a NULL element terminating the list.
//
// \returns the total length of the combined string, not including an ASCII
// NUL termination character. This length may exceed the available storage:
// in this case, the written string will be truncated to avoid a buffer
// overrun, and the return value will greater than or equal to the storage
// size. A NULL argument may be provided as the destination buffer in order
// to determine the required string length without actually writing a string.
static size_t loader_platform_combine_path(char *dest, size_t len, ...) {
size_t required_len = 0;
va_list ap;
const char *component;
va_start(ap, len);
while ((component = va_arg(ap, const char *))) {
if (required_len > 0) {
// This path element is not the first non-empty element; prepend
// a directory separator if space allows
if (dest && required_len + 1 < len) {
(void)snprintf(dest + required_len, len - required_len, "%c", DIRECTORY_SYMBOL);
}
required_len++;
}
if (dest && required_len < len) {
strncpy(dest + required_len, component, len - required_len);
}
required_len += strlen(component);
}
va_end(ap);
// strncpy(3) won't add a NUL terminating byte in the event of truncation.
if (dest && required_len >= len) {
dest[len - 1] = '\0';
}
return required_len;
}
// Given string of three part form "maj.min.pat" convert to a vulkan version number.
// Also can understand four part form "variant.major.minor.patch" if provided.
static uint32_t loader_make_version(char *vers_str) {
uint32_t variant = 0, major = 0, minor = 0, patch = 0;
char *vers_tok;
if (!vers_str) {
return 0;
}
vers_tok = strtok(vers_str, ".\"\n\r");
if (NULL != vers_tok) {
major = (uint16_t)atoi(vers_tok);
vers_tok = strtok(NULL, ".\"\n\r");
if (NULL != vers_tok) {
minor = (uint16_t)atoi(vers_tok);
vers_tok = strtok(NULL, ".\"\n\r");
if (NULL != vers_tok) {
patch = (uint16_t)atoi(vers_tok);
vers_tok = strtok(NULL, ".\"\n\r");
// check that we are using a 4 part version string
if (NULL != vers_tok) {
// if we are, move the values over into the correct place
variant = major;
major = minor;
minor = patch;
patch = (uint16_t)atoi(vers_tok);
}
}
}
}
return VK_MAKE_API_VERSION(variant, major, minor, patch);
}
static loader_api_version loader_make_api_version(char *vers_str) {
uint32_t version = loader_make_version(vers_str);
loader_api_version api_version = {VK_API_VERSION_MAJOR(version), VK_API_VERSION_MINOR(version), VK_API_VERSION_PATCH(version)};
return api_version;
}
bool compare_vk_extension_properties(const VkExtensionProperties *op1, const VkExtensionProperties *op2) {
return strcmp(op1->extensionName, op2->extensionName) == 0 ? true : false;
}
// Search the given ext_array for an extension matching the given vk_ext_prop
bool has_vk_extension_property_array(const VkExtensionProperties *vk_ext_prop, const uint32_t count,
const VkExtensionProperties *ext_array) {
for (uint32_t i = 0; i < count; i++) {
if (compare_vk_extension_properties(vk_ext_prop, &ext_array[i])) return true;
}
return 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], vk_ext_prop)) return true;
}
return false;
}
// Search the given ext_list for a device extension matching the given ext_prop
bool has_vk_dev_ext_property(const VkExtensionProperties *ext_prop, const struct loader_device_extension_list *ext_list) {
for (uint32_t i = 0; i < ext_list->count; i++) {
if (compare_vk_extension_properties(&ext_list->list[i].props, ext_prop)) return true;
}
return false;
}
// Get the next unused layer property in the list. Init the property to zero.
static struct loader_layer_properties *loader_get_next_layer_property_slot(const struct loader_instance *inst,
struct loader_layer_list *layer_list) {
if (layer_list->capacity == 0) {
layer_list->list =
loader_instance_heap_alloc(inst, sizeof(struct loader_layer_properties) * 64, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (layer_list->list == NULL) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_get_next_layer_property_slot: Out of memory can not add any layer properties to list");
return NULL;
}
memset(layer_list->list, 0, sizeof(struct loader_layer_properties) * 64);
layer_list->capacity = sizeof(struct loader_layer_properties) * 64;
}
// Ensure enough room to add an entry
if ((layer_list->count + 1) * sizeof(struct loader_layer_properties) > layer_list->capacity) {
void *new_ptr = loader_instance_heap_realloc(inst, layer_list->list, layer_list->capacity, layer_list->capacity * 2,
VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (NULL == new_ptr) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_next_layer_property_slot: realloc failed for layer list");
return NULL;
}
layer_list->list = new_ptr;
memset((uint8_t *)layer_list->list + layer_list->capacity, 0, layer_list->capacity);
layer_list->capacity *= 2;
}
layer_list->count++;
return &(layer_list->list[layer_list->count - 1]);
}
// Search the given layer list for a layer property matching the given layer name
static struct loader_layer_properties *loader_find_layer_property(const char *name, const struct loader_layer_list *layer_list) {
for (uint32_t i = 0; i < layer_list->count; i++) {
const VkLayerProperties *item = &layer_list->list[i].info;
if (strcmp(name, item->layerName) == 0) return &layer_list->list[i];
}
return NULL;
}
// Search the given layer list for a layer matching the given layer name
static bool loader_find_layer_name_in_list(const char *name, const struct loader_layer_list *layer_list) {
if (NULL == layer_list) {
return false;
}
if (NULL != loader_find_layer_property(name, layer_list)) {
return true;
}
return false;
}
// Search the given meta-layer's component list for a layer matching the given layer name
static bool loader_find_layer_name_in_meta_layer(const struct loader_instance *inst, const char *layer_name,
struct loader_layer_list *layer_list,
struct loader_layer_properties *meta_layer_props) {
for (uint32_t comp_layer = 0; comp_layer < meta_layer_props->num_component_layers; comp_layer++) {
if (!strcmp(meta_layer_props->component_layer_names[comp_layer], layer_name)) {
return true;
}
struct loader_layer_properties *comp_layer_props =
loader_find_layer_property(meta_layer_props->component_layer_names[comp_layer], layer_list);
if (comp_layer_props->type_flags & VK_LAYER_TYPE_FLAG_META_LAYER) {
return loader_find_layer_name_in_meta_layer(inst, layer_name, layer_list, comp_layer_props);
}
}
return false;
}
// Search the override layer's blacklist for a layer matching the given layer name
static bool loader_find_layer_name_in_blacklist(const struct loader_instance *inst, const char *layer_name,
struct loader_layer_list *layer_list,
struct loader_layer_properties *meta_layer_props) {
for (uint32_t black_layer = 0; black_layer < meta_layer_props->num_blacklist_layers; ++black_layer) {
if (!strcmp(meta_layer_props->blacklist_layer_names[black_layer], layer_name)) {
return true;
}
}
return false;
}
// Remove all layer properties entries from the list
void loader_delete_layer_list_and_properties(const struct loader_instance *inst, struct loader_layer_list *layer_list) {
uint32_t i;
if (!layer_list) return;
for (i = 0; i < layer_list->count; i++) {
loader_free_layer_properties(inst, &(layer_list->list[i]));
}
layer_list->count = 0;
if (layer_list->capacity > 0) {
layer_list->capacity = 0;
loader_instance_heap_free(inst, layer_list->list);
}
}
void loader_remove_layer_in_list(const struct loader_instance *inst, struct loader_layer_list *layer_list,
uint32_t layer_to_remove) {
if (layer_list == NULL || layer_to_remove >= layer_list->count) {
return;
}
loader_free_layer_properties(inst, &(layer_list->list[layer_to_remove]));
// Remove the current invalid meta-layer from the layer list. Use memmove since we are
// overlapping the source and destination addresses.
memmove(&layer_list->list[layer_to_remove], &layer_list->list[layer_to_remove + 1],
sizeof(struct loader_layer_properties) * (layer_list->count - 1 - layer_to_remove));
// Decrement the count (because we now have one less) and decrement the loop index since we need to
// re-check this index.
layer_list->count--;
}
// Remove all layers in the layer list that are blacklisted by the override layer.
// NOTE: This should only be called if an override layer is found and not expired.
void loader_remove_layers_in_blacklist(const struct loader_instance *inst, struct loader_layer_list *layer_list) {
struct loader_layer_properties *override_prop = loader_find_layer_property(VK_OVERRIDE_LAYER_NAME, layer_list);
if (NULL == override_prop) {
return;
}
for (int32_t j = 0; j < (int32_t)(layer_list->count); j++) {
struct loader_layer_properties cur_layer_prop = layer_list->list[j];
const char *cur_layer_name = &cur_layer_prop.info.layerName[0];
// Skip the override layer itself.
if (!strcmp(VK_OVERRIDE_LAYER_NAME, cur_layer_name)) {
continue;
}
// If found in the override layer's blacklist, remove it
if (loader_find_layer_name_in_blacklist(inst, cur_layer_name, layer_list, override_prop)) {
loader_log(inst, VULKAN_LOADER_DEBUG_BIT, 0,
"loader_remove_layers_in_blacklist: Override layer is active and layer %s is in the blacklist inside of it. "
"Removing that layer from current layer list.",
cur_layer_name);
loader_remove_layer_in_list(inst, layer_list, j);
j--;
// Re-do the query for the override layer
override_prop = loader_find_layer_property(VK_OVERRIDE_LAYER_NAME, layer_list);
}
}
}
// Remove all layers in the layer list that are not found inside any implicit meta-layers.
void loader_remove_layers_not_in_implicit_meta_layers(const struct loader_instance *inst, struct loader_layer_list *layer_list) {
int32_t i;
int32_t j;
int32_t layer_count = (int32_t)(layer_list->count);
for (i = 0; i < layer_count; i++) {
layer_list->list[i].keep = false;
}
for (i = 0; i < layer_count; i++) {
struct loader_layer_properties *cur_layer_prop = &layer_list->list[i];
if (0 == (cur_layer_prop->type_flags & VK_LAYER_TYPE_FLAG_EXPLICIT_LAYER)) {
cur_layer_prop->keep = true;
continue;
}
for (j = 0; j < layer_count; j++) {
struct loader_layer_properties layer_to_check = layer_list->list[j];
if (i == j) {
continue;
}
if (layer_to_check.type_flags & VK_LAYER_TYPE_FLAG_META_LAYER) {
// For all layers found in this meta layer, we want to keep them as well.
if (loader_find_layer_name_in_meta_layer(inst, cur_layer_prop->info.layerName, layer_list, &layer_to_check)) {
cur_layer_prop->keep = true;
}
}
}
}
// Remove any layers we don't want to keep (Don't use layer_count here as we need it to be
// dynamically updated if we delete a layer property in the list).
for (i = 0; i < (int32_t)(layer_list->count); i++) {
struct loader_layer_properties cur_layer_prop = layer_list->list[i];
if (!cur_layer_prop.keep) {
loader_log(
inst, VULKAN_LOADER_DEBUG_BIT, 0,
"loader_remove_layers_not_in_implicit_meta_layers : Implicit meta-layers are active, and layer %s is not list "
"inside of any. So removing layer from current layer list.",
cur_layer_prop.info.layerName);
loader_remove_layer_in_list(inst, layer_list, i);
i--;
}
}
}
static VkResult loader_add_instance_extensions(const struct loader_instance *inst,
const PFN_vkEnumerateInstanceExtensionProperties fp_get_props, const char *lib_name,
struct loader_extension_list *ext_list) {
uint32_t i, count = 0;
VkExtensionProperties *ext_props;
VkResult res = VK_SUCCESS;
if (!fp_get_props) {
// No EnumerateInstanceExtensionProperties defined
goto out;
}
res = fp_get_props(NULL, &count, NULL);
if (res != VK_SUCCESS) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_add_instance_extensions: Error getting Instance extension count from %s", lib_name);
goto out;
}
if (count == 0) {
// No ExtensionProperties to report
goto out;
}
ext_props = loader_stack_alloc(count * sizeof(VkExtensionProperties));
if (NULL == ext_props) {
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
res = fp_get_props(NULL, &count, ext_props);
if (res != VK_SUCCESS) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_add_instance_extensions: Error getting Instance extensions from %s",
lib_name);
goto out;
}
for (i = 0; i < count; i++) {
bool ext_unsupported = wsi_unsupported_instance_extension(&ext_props[i]);
if (!ext_unsupported) {
res = loader_add_to_ext_list(inst, ext_list, 1, &ext_props[i]);
if (res != VK_SUCCESS) {
goto out;
}
}
}
out:
return res;
}
// Initialize ext_list with the physical device extensions.
// The extension properties are passed as inputs in count and ext_props.
static VkResult loader_init_device_extensions(const struct loader_instance *inst, struct loader_physical_device_term *phys_dev_term,
uint32_t count, VkExtensionProperties *ext_props,
struct loader_extension_list *ext_list) {
VkResult res;
uint32_t i;
res = loader_init_generic_list(inst, (struct loader_generic_list *)ext_list, sizeof(VkExtensionProperties));
if (VK_SUCCESS != res) {
return res;
}
for (i = 0; i < count; i++) {
res = loader_add_to_ext_list(inst, ext_list, 1, &ext_props[i]);
if (res != VK_SUCCESS) return res;
}
return VK_SUCCESS;
}
VkResult loader_add_device_extensions(const struct loader_instance *inst,
PFN_vkEnumerateDeviceExtensionProperties fpEnumerateDeviceExtensionProperties,
VkPhysicalDevice physical_device, const char *lib_name,
struct loader_extension_list *ext_list) {
uint32_t i = 0, count = 0;
VkResult res = VK_SUCCESS;
VkExtensionProperties *ext_props = NULL;
res = fpEnumerateDeviceExtensionProperties(physical_device, NULL, &count, NULL);
if (res != VK_SUCCESS) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_add_device_extensions: Error getting physical device extension info count from library %s", lib_name);
return res;
}
if (count > 0) {
ext_props = loader_stack_alloc(count * sizeof(VkExtensionProperties));
if (!ext_props) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_add_device_extensions: Failed to allocate space for device extension properties from library %s.",
lib_name);
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
res = fpEnumerateDeviceExtensionProperties(physical_device, NULL, &count, ext_props);
if (res != VK_SUCCESS) {
return res;
}
for (i = 0; i < count; i++) {
res = loader_add_to_ext_list(inst, ext_list, 1, &ext_props[i]);
if (res != VK_SUCCESS) {
return res;
}
}
}
return VK_SUCCESS;
}
VkResult loader_init_generic_list(const struct loader_instance *inst, struct loader_generic_list *list_info, size_t element_size) {
size_t capacity = 32 * element_size;
list_info->count = 0;
list_info->capacity = 0;
list_info->list = loader_instance_heap_alloc(inst, capacity, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (list_info->list == NULL) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_init_generic_list: Failed to allocate space for generic list");
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
memset(list_info->list, 0, capacity);
list_info->capacity = capacity;
return VK_SUCCESS;
}
void loader_destroy_generic_list(const struct loader_instance *inst, struct loader_generic_list *list) {
loader_instance_heap_free(inst, list->list);
list->count = 0;
list->capacity = 0;
}
// Append non-duplicate extension properties defined in props to the given ext_list.
// Return - Vk_SUCCESS on success
VkResult loader_add_to_ext_list(const struct loader_instance *inst, struct loader_extension_list *ext_list,
uint32_t prop_list_count, const VkExtensionProperties *props) {
uint32_t i;
const VkExtensionProperties *cur_ext;
if (ext_list->list == NULL || ext_list->capacity == 0) {
VkResult res = loader_init_generic_list(inst, (struct loader_generic_list *)ext_list, sizeof(VkExtensionProperties));
if (VK_SUCCESS != res) {
return res;
}
}
for (i = 0; i < prop_list_count; i++) {
cur_ext = &props[i];
// look for duplicates
if (has_vk_extension_property(cur_ext, ext_list)) {
continue;
}
// add to list at end
// check for enough capacity
if (ext_list->count * sizeof(VkExtensionProperties) >= ext_list->capacity) {
void *new_ptr = loader_instance_heap_realloc(inst, ext_list->list, ext_list->capacity, ext_list->capacity * 2,
VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (new_ptr == NULL) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_add_to_ext_list: Failed to reallocate space for extension list");
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
ext_list->list = new_ptr;
// double capacity
ext_list->capacity *= 2;
}
memcpy(&ext_list->list[ext_list->count], cur_ext, sizeof(VkExtensionProperties));
ext_list->count++;
}
return VK_SUCCESS;
}
// Append one extension property defined in props with entrypoints defined in entries to the given
// ext_list. Do not append if a duplicate.
// Return - Vk_SUCCESS on success
VkResult loader_add_to_dev_ext_list(const struct loader_instance *inst, struct loader_device_extension_list *ext_list,
const VkExtensionProperties *props, uint32_t entry_count, char **entrys) {
uint32_t idx;
if (ext_list->list == NULL || ext_list->capacity == 0) {
VkResult res = loader_init_generic_list(inst, (struct loader_generic_list *)ext_list, sizeof(struct loader_dev_ext_props));
if (VK_SUCCESS != res) {
return res;
}
}
// look for duplicates
if (has_vk_dev_ext_property(props, ext_list)) {
return VK_SUCCESS;
}
idx = ext_list->count;
// add to list at end
// check for enough capacity
if (idx * sizeof(struct loader_dev_ext_props) >= ext_list->capacity) {
void *new_ptr = loader_instance_heap_realloc(inst, ext_list->list, ext_list->capacity, ext_list->capacity * 2,
VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (NULL == new_ptr) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_add_to_dev_ext_list: Failed to reallocate space for device extension list");
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
ext_list->list = new_ptr;
// double capacity
ext_list->capacity *= 2;
}
memcpy(&ext_list->list[idx].props, props, sizeof(*props));
ext_list->list[idx].entrypoint_count = entry_count;
if (entry_count == 0) {
ext_list->list[idx].entrypoints = NULL;
} else {
ext_list->list[idx].entrypoints =
loader_instance_heap_alloc(inst, sizeof(char *) * entry_count, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (ext_list->list[idx].entrypoints == NULL) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_add_to_dev_ext_list: Failed to allocate space for device extension entrypoint list in list %d", idx);
ext_list->list[idx].entrypoint_count = 0;
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
for (uint32_t i = 0; i < entry_count; i++) {
ext_list->list[idx].entrypoints[i] =
loader_instance_heap_alloc(inst, strlen(entrys[i]) + 1, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (ext_list->list[idx].entrypoints[i] == NULL) {
for (uint32_t j = 0; j < i; j++) {
loader_instance_heap_free(inst, ext_list->list[idx].entrypoints[j]);
}
loader_instance_heap_free(inst, ext_list->list[idx].entrypoints);
ext_list->list[idx].entrypoint_count = 0;
ext_list->list[idx].entrypoints = NULL;
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_add_to_dev_ext_list: Failed to allocate space for device extension entrypoint %d name", i);
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
strcpy(ext_list->list[idx].entrypoints[i], entrys[i]);
}
}
ext_list->count++;
return VK_SUCCESS;
}
// Prototypes needed.
bool loader_add_meta_layer(const struct loader_instance *inst, const struct loader_layer_properties *prop,
struct loader_layer_list *target_list, struct loader_layer_list *expanded_target_list,
const struct loader_layer_list *source_list);
// Manage lists of VkLayerProperties
static bool loader_init_layer_list(const struct loader_instance *inst, struct loader_layer_list *list) {
list->capacity = 32 * sizeof(struct loader_layer_properties);
list->list = loader_instance_heap_alloc(inst, list->capacity, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (list->list == NULL) {
return false;
}
memset(list->list, 0, list->capacity);
list->count = 0;
return true;
}
// Search the given array of layer names for an entry matching the given VkLayerProperties
bool loader_names_array_has_layer_property(const VkLayerProperties *vk_layer_prop, uint32_t layer_info_count,
struct activated_layer_info *layer_info) {
for (uint32_t i = 0; i < layer_info_count; i++) {
if (strcmp(vk_layer_prop->layerName, layer_info[i].name) == 0) {
return true;
}
}
return false;
}
void loader_destroy_layer_list(const struct loader_instance *inst, struct loader_device *device,
struct loader_layer_list *layer_list) {
if (device) {
loader_device_heap_free(device, layer_list->list);
} else {
loader_instance_heap_free(inst, layer_list->list);
}
layer_list->count = 0;
layer_list->capacity = 0;
}
// Append layer properties defined in prop_list to the given layer_info list
VkResult loader_add_layer_properties_to_list(const struct loader_instance *inst, struct loader_layer_list *list,
uint32_t prop_list_count, const struct loader_layer_properties *props) {
uint32_t i;
struct loader_layer_properties *layer;
if (list->list == NULL || list->capacity == 0) {
if (!loader_init_layer_list(inst, list)) {
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
}
if (list->list == NULL) return VK_SUCCESS;
for (i = 0; i < prop_list_count; i++) {
layer = (struct loader_layer_properties *)&props[i];
// Check for enough capacity
if (((list->count + 1) * sizeof(struct loader_layer_properties)) >= list->capacity) {
size_t new_capacity = list->capacity * 2;
void *new_ptr =
loader_instance_heap_realloc(inst, list->list, list->capacity, new_capacity, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (NULL == new_ptr) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_add_layer_properties_to_list: Realloc failed for when attempting to add new layer");
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
list->list = new_ptr;
list->capacity = new_capacity;
}
memcpy(&list->list[list->count], layer, sizeof(struct loader_layer_properties));
list->count++;
}
return VK_SUCCESS;
}
// Search the given search_list for any layers in the props list. Add these to the
// output layer_list.
static VkResult loader_add_layer_names_to_list(const struct loader_instance *inst, struct loader_layer_list *output_list,
struct loader_layer_list *expanded_output_list, uint32_t name_count,
const char *const *names, const struct loader_layer_list *source_list) {
struct loader_layer_properties *layer_prop;
VkResult err = VK_SUCCESS;
for (uint32_t i = 0; i < name_count; i++) {
const char *source_name = names[i];
layer_prop = loader_find_layer_property(source_name, source_list);
if (NULL == layer_prop) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"loader_add_layer_names_to_list: Unable to find layer %s", source_name);
err = VK_ERROR_LAYER_NOT_PRESENT;
continue;
}
// Make sure the layer isn't already in the output_list, skip adding it if it is.
if (loader_find_layer_name_in_list(source_name, output_list)) {
continue;
}
// If not a meta-layer, simply add it.
if (0 == (layer_prop->type_flags & VK_LAYER_TYPE_FLAG_META_LAYER)) {
loader_add_layer_properties_to_list(inst, output_list, 1, layer_prop);
loader_add_layer_properties_to_list(inst, expanded_output_list, 1, layer_prop);
} else {
loader_add_meta_layer(inst, layer_prop, output_list, expanded_output_list, source_list);
}
}
return err;
}
static bool check_expiration(const struct loader_instance *inst, const struct loader_layer_properties *prop) {
time_t current = time(NULL);
struct tm tm_current = *localtime(&current);
struct tm tm_expiration = {
.tm_sec = 0,
.tm_min = prop->expiration.minute,
.tm_hour = prop->expiration.hour,
.tm_mday = prop->expiration.day,
.tm_mon = prop->expiration.month - 1,
.tm_year = prop->expiration.year - 1900,
.tm_isdst = tm_current.tm_isdst,
// wday and yday are ignored by mktime
};
time_t expiration = mktime(&tm_expiration);
return current < expiration;
}
// Determine if the provided implicit layer should be enabled by querying the appropriate environmental variables.
// For an implicit layer, at least a disable environment variable is required.
bool loader_implicit_layer_is_enabled(const struct loader_instance *inst, const struct loader_layer_properties *prop) {
bool enable = false;
char *env_value = NULL;
// If no enable_environment variable is specified, this implicit layer is always be enabled by default.
if (prop->enable_env_var.name[0] == 0) {
enable = true;
} else {
// Otherwise, only enable this layer if the enable environment variable is defined
env_value = loader_getenv(prop->enable_env_var.name, inst);
if (env_value && !strcmp(prop->enable_env_var.value, env_value)) {
enable = true;
}
loader_free_getenv(env_value, inst);
}
// The disable_environment has priority over everything else. If it is defined, the layer is always
// disabled.
env_value = loader_getenv(prop->disable_env_var.name, inst);
if (NULL != env_value) {
enable = false;
}
loader_free_getenv(env_value, inst);
// If this layer has an expiration, check it to determine if this layer has expired.
if (prop->has_expiration) {
enable = check_expiration(inst, prop);
}
// Enable this layer if it is included in the override layer
if (inst != NULL && inst->override_layer_present) {
struct loader_layer_properties *override = NULL;
for (uint32_t i = 0; i < inst->instance_layer_list.count; ++i) {
if (strcmp(inst->instance_layer_list.list[i].info.layerName, VK_OVERRIDE_LAYER_NAME) == 0) {
override = &inst->instance_layer_list.list[i];
break;
}
}
if (override != NULL) {
for (uint32_t i = 0; i < override->num_component_layers; ++i) {
if (strcmp(override->component_layer_names[i], prop->info.layerName) == 0) {
enable = true;
break;
}
}
}
}
return enable;
}
// Check the individual implicit layer for the enable/disable environment variable settings. Only add it after
// every check has passed indicating it should be used.
static void loader_add_implicit_layer(const struct loader_instance *inst, const struct loader_layer_properties *prop,
struct loader_layer_list *target_list, struct loader_layer_list *expanded_target_list,
const struct loader_layer_list *source_list) {
bool enable = loader_implicit_layer_is_enabled(inst, prop);
// If the implicit layer is supposed to be enable, make sure the layer supports at least the same API version
// that the application is asking (i.e. layer's API >= app's API). If it's not, disable this layer.
if (enable) {
uint16_t layer_api_major_version = VK_API_VERSION_MAJOR(prop->info.specVersion);
uint16_t layer_api_minor_version = VK_API_VERSION_MINOR(prop->info.specVersion);
if (inst->app_api_major_version > layer_api_major_version ||
(inst->app_api_major_version == layer_api_major_version && inst->app_api_minor_version > layer_api_minor_version)) {
loader_log(inst, VULKAN_LOADER_INFO_BIT, 0,
"loader_add_implicit_layer: Disabling implicit layer %s for using an old API version %d.%d versus "
"application requested %d.%d",
prop->info.layerName, layer_api_major_version, layer_api_minor_version, inst->app_api_major_version,
inst->app_api_minor_version);
enable = false;
}
}
if (enable) {
if (0 == (prop->type_flags & VK_LAYER_TYPE_FLAG_META_LAYER)) {
loader_add_layer_properties_to_list(inst, target_list, 1, prop);
if (NULL != expanded_target_list) {
loader_add_layer_properties_to_list(inst, expanded_target_list, 1, prop);
}
} else {
loader_add_meta_layer(inst, prop, target_list, expanded_target_list, source_list);
}
}
}
// Add the component layers of a meta-layer to the active list of layers
bool loader_add_meta_layer(const struct loader_instance *inst, const struct loader_layer_properties *prop,
struct loader_layer_list *target_list, struct loader_layer_list *expanded_target_list,
const struct loader_layer_list *source_list) {
bool found = true;
// We need to add all the individual component layers
uint16_t meta_layer_api_major_version = VK_API_VERSION_MAJOR(prop->info.specVersion);
uint16_t meta_layer_api_minor_version = VK_API_VERSION_MINOR(prop->info.specVersion);
for (uint32_t comp_layer = 0; comp_layer < prop->num_component_layers; comp_layer++) {
bool found_comp = false;
const struct loader_layer_properties *search_prop =
loader_find_layer_property(prop->component_layer_names[comp_layer], source_list);
if (search_prop != NULL) {
found_comp = true;
uint16_t search_layer_api_major_version = VK_API_VERSION_MAJOR(search_prop->info.specVersion);
uint16_t search_layer_api_minor_version = VK_API_VERSION_MINOR(search_prop->info.specVersion);
if (meta_layer_api_major_version != search_layer_api_major_version ||
meta_layer_api_minor_version > search_layer_api_minor_version) {
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"loader_add_meta_layer: Meta-layer API version %u.%u, component layer %s version %u.%u, may have "
"incompatibilities (Policy #LLP_LAYER_8)!",
meta_layer_api_major_version, meta_layer_api_minor_version, search_prop->info.layerName,
search_layer_api_major_version, meta_layer_api_minor_version);
}
// If the component layer is itself an implicit layer, we need to do the implicit layer enable
// checks
if (0 == (search_prop->type_flags & VK_LAYER_TYPE_FLAG_EXPLICIT_LAYER)) {
loader_add_implicit_layer(inst, search_prop, target_list, expanded_target_list, source_list);
} else {
if (0 != (search_prop->type_flags & VK_LAYER_TYPE_FLAG_META_LAYER)) {
found = loader_add_meta_layer(inst, search_prop, target_list, expanded_target_list, source_list);
} else {
loader_add_layer_properties_to_list(inst, target_list, 1, search_prop);
if (NULL != expanded_target_list) {
loader_add_layer_properties_to_list(inst, expanded_target_list, 1, search_prop);
}
}
}
}
if (!found_comp) {
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"loader_add_meta_layer: Failed to find layer name %s component layer %s to activate (Policy #LLP_LAYER_7)",
search_prop->info.layerName, prop->component_layer_names[comp_layer]);
found = false;
}
}
// Add this layer to the overall target list (not the expanded one)
if (found) {
loader_add_layer_properties_to_list(inst, target_list, 1, prop);
}
return found;
}
// Search the source_list for any layer with a name that matches the given name and a type
// that matches the given type. Add all matching layers to the target_list.
VkResult loader_add_layer_name_to_list(const struct loader_instance *inst, const char *name, const enum layer_type_flags type_flags,
const struct loader_layer_list *source_list, struct loader_layer_list *target_list,
struct loader_layer_list *expanded_target_list) {
VkResult res = VK_SUCCESS;
bool found = false;
for (uint32_t i = 0; i < source_list->count; i++) {
struct loader_layer_properties *source_prop = &source_list->list[i];
if (0 == strcmp(source_prop->info.layerName, name) && (source_prop->type_flags & type_flags) == type_flags) {
// If not a meta-layer, simply add it.
if (0 == (source_prop->type_flags & VK_LAYER_TYPE_FLAG_META_LAYER)) {
if (VK_SUCCESS == loader_add_layer_properties_to_list(inst, target_list, 1, source_prop)) {
found = true;
}
if (VK_SUCCESS == loader_add_layer_properties_to_list(inst, expanded_target_list, 1, source_prop)) {
found = true;
}
} else {
found = loader_add_meta_layer(inst, source_prop, target_list, expanded_target_list, source_list);
}
}
}
if (!found) {
if (strcmp(name, "VK_LAYER_LUNARG_standard_validation")) {
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"loader_add_layer_name_to_list: Failed to find layer name %s to activate", name);
} else {
res = VK_ERROR_LAYER_NOT_PRESENT;
loader_log(inst, VULKAN_LOADER_ERROR_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"Layer VK_LAYER_LUNARG_standard_validation has been changed to VK_LAYER_KHRONOS_validation. Please use the "
"new version of the layer.");
}
}
return res;
}
static VkExtensionProperties *get_extension_property(const char *name, const struct loader_extension_list *list) {
for (uint32_t i = 0; i < list->count; i++) {
if (strcmp(name, list->list[i].extensionName) == 0) return &list->list[i];
}
return NULL;
}
static VkExtensionProperties *get_dev_extension_property(const char *name, const struct loader_device_extension_list *list) {
for (uint32_t i = 0; i < list->count; i++) {
if (strcmp(name, list->list[i].props.extensionName) == 0) return &list->list[i].props;
}
return NULL;
}
// For Instance extensions implemented within the loader (i.e. 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 logic
// 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.
VkResult loader_get_icd_loader_instance_extensions(const struct loader_instance *inst, struct loader_icd_tramp_list *icd_tramp_list,
struct loader_extension_list *inst_exts) {
struct loader_extension_list icd_exts;
VkResult res = VK_SUCCESS;
char *env_value;
bool filter_extensions = true;
loader_log(inst, VULKAN_LOADER_DEBUG_BIT, 0, "Build ICD instance extension list");
// Check if a user wants to disable the instance extension filtering behavior
env_value = loader_getenv("VK_LOADER_DISABLE_INST_EXT_FILTER", inst);
if (NULL != env_value && atoi(env_value) != 0) {
filter_extensions = false;
}
loader_free_getenv(env_value, inst);
// traverse scanned icd list adding non-duplicate extensions to the list
for (uint32_t i = 0; i < icd_tramp_list->count; i++) {
res = loader_init_generic_list(inst, (struct loader_generic_list *)&icd_exts, sizeof(VkExtensionProperties));
if (VK_SUCCESS != res) {
goto out;
}
res = loader_add_instance_extensions(inst, icd_tramp_list->scanned_list[i].EnumerateInstanceExtensionProperties,
icd_tramp_list->scanned_list[i].lib_name, &icd_exts);
if (VK_SUCCESS == res) {
if (filter_extensions) {
// Remove any extensions not recognized by the loader
for (int32_t j = 0; j < (int32_t)icd_exts.count; j++) {
// See if the extension is in the list of supported extensions
bool found = false;
for (uint32_t k = 0; LOADER_INSTANCE_EXTENSIONS[k] != NULL; k++) {
if (strcmp(icd_exts.list[j].extensionName, LOADER_INSTANCE_EXTENSIONS[k]) == 0) {
found = true;
break;
}
}
// If it isn't in the list, remove it
if (!found) {
for (uint32_t k = j + 1; k < icd_exts.count; k++) {
icd_exts.list[k - 1] = icd_exts.list[k];
}
--icd_exts.count;
--j;
}
}
}
res = loader_add_to_ext_list(inst, inst_exts, icd_exts.count, icd_exts.list);
}
loader_destroy_generic_list(inst, (struct loader_generic_list *)&icd_exts);
if (VK_SUCCESS != res) {
goto out;
}
};
// Traverse loader's extensions, adding non-duplicate extensions to the list
debug_utils_AddInstanceExtensions(inst, inst_exts);
out:
return res;
}
struct loader_icd_term *loader_get_icd_and_device(const void *device, struct loader_device **found_dev, uint32_t *icd_index) {
*found_dev = NULL;
for (struct loader_instance *inst = loader.instances; inst; inst = inst->next) {
uint32_t index = 0;
for (struct loader_icd_term *icd_term = inst->icd_terms; icd_term; icd_term = icd_term->next) {
for (struct loader_device *dev = icd_term->logical_device_list; dev; dev = dev->next)
// Value comparison of device prevents object wrapping by layers
if (loader_get_dispatch(dev->icd_device) == loader_get_dispatch(device) ||
(dev->chain_device != VK_NULL_HANDLE &&
loader_get_dispatch(dev->chain_device) == loader_get_dispatch(device))) {
*found_dev = dev;
if (NULL != icd_index) {
*icd_index = index;
}
return icd_term;
}
index++;
}
}
return NULL;
}
void loader_destroy_logical_device(const struct loader_instance *inst, struct loader_device *dev,
const VkAllocationCallbacks *pAllocator) {
if (pAllocator) {
dev->alloc_callbacks = *pAllocator;
}
if (NULL != dev->expanded_activated_layer_list.list) {
loader_deactivate_layers(inst, dev, &dev->expanded_activated_layer_list);
}
if (NULL != dev->app_activated_layer_list.list) {
loader_destroy_layer_list(inst, dev, &dev->app_activated_layer_list);
}
loader_device_heap_free(dev, dev);
}
struct loader_device *loader_create_logical_device(const struct loader_instance *inst, const VkAllocationCallbacks *pAllocator) {
struct loader_device *new_dev;
#if (DEBUG_DISABLE_APP_ALLOCATORS == 1)
{
#else
if (pAllocator) {
new_dev = (struct loader_device *)pAllocator->pfnAllocation(pAllocator->pUserData, sizeof(struct loader_device),
sizeof(int *), VK_SYSTEM_ALLOCATION_SCOPE_DEVICE);
} else {
#endif
new_dev = (struct loader_device *)malloc(sizeof(struct loader_device));
}
if (!new_dev) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_create_logical_device: Failed to alloc struct loader_device");
return NULL;
}
memset(new_dev, 0, sizeof(struct loader_device));
if (pAllocator) {
new_dev->alloc_callbacks = *pAllocator;
}
return new_dev;
}
void loader_add_logical_device(const struct loader_instance *inst, struct loader_icd_term *icd_term, struct loader_device *dev) {
dev->next = icd_term->logical_device_list;
icd_term->logical_device_list = dev;
}
void loader_remove_logical_device(const struct loader_instance *inst, struct loader_icd_term *icd_term,
struct loader_device *found_dev, const VkAllocationCallbacks *pAllocator) {
struct loader_device *dev, *prev_dev;
if (!icd_term || !found_dev) return;
prev_dev = NULL;
dev = icd_term->logical_device_list;
while (dev && dev != found_dev) {
prev_dev = dev;
dev = dev->next;
}
if (prev_dev)
prev_dev->next = found_dev->next;
else
icd_term->logical_device_list = found_dev->next;
loader_destroy_logical_device(inst, found_dev, pAllocator);
}
static void loader_icd_destroy(struct loader_instance *ptr_inst, struct loader_icd_term *icd_term,
const VkAllocationCallbacks *pAllocator) {
ptr_inst->total_icd_count--;
for (struct loader_device *dev = icd_term->logical_device_list; dev;) {
struct loader_device *next_dev = dev->next;
loader_destroy_logical_device(ptr_inst, dev, pAllocator);
dev = next_dev;
}
loader_instance_heap_free(ptr_inst, icd_term);
}
static struct loader_icd_term *loader_icd_create(const struct loader_instance *inst) {
struct loader_icd_term *icd_term;
icd_term = loader_instance_heap_alloc(inst, sizeof(struct loader_icd_term), VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (!icd_term) {
return NULL;
}
memset(icd_term, 0, sizeof(struct loader_icd_term));
return icd_term;
}
static struct loader_icd_term *loader_icd_add(struct loader_instance *ptr_inst, const struct loader_scanned_icd *scanned_icd) {
struct loader_icd_term *icd_term;
icd_term = loader_icd_create(ptr_inst);
if (!icd_term) {
return NULL;
}
icd_term->scanned_icd = scanned_icd;
icd_term->this_instance = ptr_inst;
// Prepend to the list
icd_term->next = ptr_inst->icd_terms;
ptr_inst->icd_terms = icd_term;
ptr_inst->total_icd_count++;
return icd_term;
}
// Determine the ICD interface version to use.
// @param icd
// @param pVersion Output parameter indicating which version to use or 0 if
// the negotiation API is not supported by the ICD
// @return bool indicating true if the selected interface version is supported
// by the loader, false indicates the version is not supported
bool loader_get_icd_interface_version(PFN_vkNegotiateLoaderICDInterfaceVersion fp_negotiate_icd_version, uint32_t *pVersion) {
if (fp_negotiate_icd_version == NULL) {
// ICD does not support the negotiation API, it supports version 0 or 1
// calling code must determine if it is version 0 or 1
*pVersion = 0;
} else {
// ICD supports the negotiation API, so call it with the loader's
// latest version supported
*pVersion = CURRENT_LOADER_ICD_INTERFACE_VERSION;
VkResult result = fp_negotiate_icd_version(pVersion);
if (result == VK_ERROR_INCOMPATIBLE_DRIVER) {
// ICD no longer supports the loader's latest interface version so
// fail loading the ICD
return false;
}
}
#if MIN_SUPPORTED_LOADER_ICD_INTERFACE_VERSION > 0
if (*pVersion < MIN_SUPPORTED_LOADER_ICD_INTERFACE_VERSION) {
// Loader no longer supports the ICD's latest interface version so fail
// loading the ICD
return false;
}
#endif
return true;
}
void loader_scanned_icd_clear(const struct loader_instance *inst, struct loader_icd_tramp_list *icd_tramp_list) {
if (0 != icd_tramp_list->capacity) {
for (uint32_t i = 0; i < icd_tramp_list->count; i++) {
loader_platform_close_library(icd_tramp_list->scanned_list[i].handle);
loader_instance_heap_free(inst, icd_tramp_list->scanned_list[i].lib_name);
}
loader_instance_heap_free(inst, icd_tramp_list->scanned_list);
icd_tramp_list->capacity = 0;
icd_tramp_list->count = 0;
icd_tramp_list->scanned_list = NULL;
}
}
static VkResult loader_scanned_icd_init(const struct loader_instance *inst, struct loader_icd_tramp_list *icd_tramp_list) {
VkResult err = VK_SUCCESS;
loader_scanned_icd_clear(inst, icd_tramp_list);
icd_tramp_list->capacity = 8 * sizeof(struct loader_scanned_icd);
icd_tramp_list->scanned_list = loader_instance_heap_alloc(inst, icd_tramp_list->capacity, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (NULL == icd_tramp_list->scanned_list) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_scanned_icd_init: Realloc failed for layer list when attempting to add new layer");
err = VK_ERROR_OUT_OF_HOST_MEMORY;
}
return err;
}
static VkResult loader_scanned_icd_add(const struct loader_instance *inst, struct loader_icd_tramp_list *icd_tramp_list,
const char *filename, uint32_t api_version, enum loader_layer_library_status *lib_status) {
loader_platform_dl_handle handle;
PFN_vkCreateInstance fp_create_inst;
PFN_vkEnumerateInstanceExtensionProperties fp_get_inst_ext_props;
PFN_vkGetInstanceProcAddr fp_get_proc_addr;
PFN_GetPhysicalDeviceProcAddr fp_get_phys_dev_proc_addr = NULL;
PFN_vkNegotiateLoaderICDInterfaceVersion fp_negotiate_icd_version;
#if defined(VK_USE_PLATFORM_WIN32_KHR)
PFN_vk_icdEnumerateAdapterPhysicalDevices fp_enum_dxgi_adapter_phys_devs = NULL;
#endif
struct loader_scanned_icd *new_scanned_icd;
uint32_t interface_vers;
VkResult res = VK_SUCCESS;
// TODO implement smarter opening/closing of libraries. For now this
// function leaves libraries open and the scanned_icd_clear closes them
#if defined(__Fuchsia__)
handle = loader_platform_open_driver(filename);
#else
handle = loader_platform_open_library(filename);
#endif
if (NULL == handle) {
loader_handle_load_library_error(inst, filename, lib_status);
res = VK_ERROR_INCOMPATIBLE_DRIVER;
goto out;
}
// Get and settle on an ICD interface version
fp_negotiate_icd_version = loader_platform_get_proc_address(handle, "vk_icdNegotiateLoaderICDInterfaceVersion");
if (!loader_get_icd_interface_version(fp_negotiate_icd_version, &interface_vers)) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_scanned_icd_add: ICD %s doesn't support interface version compatible with loader, skip this ICD.",
filename);
goto out;
}
fp_get_proc_addr = loader_platform_get_proc_address(handle, "vk_icdGetInstanceProcAddr");
if (NULL == fp_get_proc_addr) {
assert(interface_vers == 0);
// Use deprecated interface from version 0
fp_get_proc_addr = loader_platform_get_proc_address(handle, "vkGetInstanceProcAddr");
if (NULL == fp_get_proc_addr) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_scanned_icd_add: Attempt to retrieve either \'vkGetInstanceProcAddr\' or "
"\'vk_icdGetInstanceProcAddr\' from ICD %s failed.",
filename);
goto out;
} else {
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0,
"loader_scanned_icd_add: Using deprecated ICD interface of \'vkGetInstanceProcAddr\' instead of "
"\'vk_icdGetInstanceProcAddr\' for ICD %s",
filename);
}
fp_create_inst = loader_platform_get_proc_address(handle, "vkCreateInstance");
if (NULL == fp_create_inst) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_scanned_icd_add: Failed querying \'vkCreateInstance\' via dlsym/loadlibrary for ICD %s", filename);
goto out;
}
fp_get_inst_ext_props = loader_platform_get_proc_address(handle, "vkEnumerateInstanceExtensionProperties");
if (NULL == fp_get_inst_ext_props) {
loader_log(
inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_scanned_icd_add: Could not get \'vkEnumerateInstanceExtensionProperties\' via dlsym/loadlibrary for ICD %s",
filename);
goto out;
}
} else {
// Use newer interface version 1 or later
if (interface_vers == 0) {
interface_vers = 1;
}
fp_create_inst = (PFN_vkCreateInstance)fp_get_proc_addr(NULL, "vkCreateInstance");
if (NULL == fp_create_inst) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_scanned_icd_add: Could not get \'vkCreateInstance\' via \'vk_icdGetInstanceProcAddr\' for ICD %s",
filename);
goto out;
}
fp_get_inst_ext_props =
(PFN_vkEnumerateInstanceExtensionProperties)fp_get_proc_addr(NULL, "vkEnumerateInstanceExtensionProperties");
if (NULL == fp_get_inst_ext_props) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_scanned_icd_add: Could not get \'vkEnumerateInstanceExtensionProperties\' via "
"\'vk_icdGetInstanceProcAddr\' for ICD %s",
filename);
goto out;
}
fp_get_phys_dev_proc_addr = loader_platform_get_proc_address(handle, "vk_icdGetPhysicalDeviceProcAddr");
#if defined(VK_USE_PLATFORM_WIN32_KHR)
if (interface_vers >= 6) {
fp_enum_dxgi_adapter_phys_devs = loader_platform_get_proc_address(handle, "vk_icdEnumerateAdapterPhysicalDevices");
}
#endif
}
// check for enough capacity
if ((icd_tramp_list->count * sizeof(struct loader_scanned_icd)) >= icd_tramp_list->capacity) {
void *new_ptr = loader_instance_heap_realloc(inst, icd_tramp_list->scanned_list, icd_tramp_list->capacity,
icd_tramp_list->capacity * 2, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (NULL == new_ptr) {
res = VK_ERROR_OUT_OF_HOST_MEMORY;
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_scanned_icd_add: Realloc failed on icd library list for ICD %s",
filename);
goto out;
}
icd_tramp_list->scanned_list = new_ptr;
// double capacity
icd_tramp_list->capacity *= 2;
}
uint32_t major_version = VK_API_VERSION_MAJOR(api_version);
uint32_t minor_version = VK_API_VERSION_MINOR(api_version);
if (interface_vers <= 4 && 1 == major_version && 0 < minor_version) {
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0,
"loader_scanned_icd_add: Driver %s supports Vulkan %u.%u, but only supports loader interface version %u."
" Interface version 5 or newer required to support this version of Vulkan (Policy #LDP_DRIVER_7)",
filename, major_version, minor_version, interface_vers);
}
if (interface_vers >= 1) {
if ((loader_platform_get_proc_address(handle, "vkEnumerateInstanceExtensionProperties") != NULL) ||
(loader_platform_get_proc_address(handle, "vkEnumerateInstanceLayerProperties") != NULL) ||
(loader_platform_get_proc_address(handle, "vkEnumerateInstanceVersion") != NULL) ||
(loader_platform_get_proc_address(handle, "vkGetInstanceProcAddr") != NULL) ||
(loader_platform_get_proc_address(handle, "vkCreateInstance") != NULL) ||
(loader_platform_get_proc_address(handle, "vkGetDeviceProcAddr") != NULL) ||
(loader_platform_get_proc_address(handle, "vkCreateDevice") != NULL)) {
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0,
"loader_scanned_icd_add: Driver %s says it supports interface version %u but still exports core "
"entrypoints (Policy #LDP_DRIVER_6)",
filename, interface_vers);
}
}
new_scanned_icd = &(icd_tramp_list->scanned_list[icd_tramp_list->count]);
new_scanned_icd->handle = handle;
new_scanned_icd->api_version = api_version;
new_scanned_icd->GetInstanceProcAddr = fp_get_proc_addr;
new_scanned_icd->GetPhysicalDeviceProcAddr = fp_get_phys_dev_proc_addr;
new_scanned_icd->EnumerateInstanceExtensionProperties = fp_get_inst_ext_props;
new_scanned_icd->CreateInstance = fp_create_inst;
#if defined(VK_USE_PLATFORM_WIN32_KHR)
new_scanned_icd->EnumerateAdapterPhysicalDevices = fp_enum_dxgi_adapter_phys_devs;
#endif
new_scanned_icd->interface_version = interface_vers;
new_scanned_icd->lib_name = (char *)loader_instance_heap_alloc(inst, strlen(filename) + 1, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (NULL == new_scanned_icd->lib_name) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_scanned_icd_add: Out of memory can't add ICD %s", filename);
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
strcpy(new_scanned_icd->lib_name, filename);
icd_tramp_list->count++;
out:
return res;
}
void loader_initialize(void) {
// initialize mutexes
loader_platform_thread_create_mutex(&loader_lock);
loader_platform_thread_create_mutex(&loader_json_lock);
loader_platform_thread_create_mutex(&loader_preload_icd_lock);
// initialize logging
loader_debug_init();
#if defined(_WIN32)
windows_initialization();
#endif
loader_log(NULL, VULKAN_LOADER_INFO_BIT, 0, "Vulkan Loader Version %d.%d.%d", VK_API_VERSION_MAJOR(VK_HEADER_VERSION_COMPLETE),
VK_API_VERSION_MINOR(VK_HEADER_VERSION_COMPLETE), VK_API_VERSION_PATCH(VK_HEADER_VERSION_COMPLETE));
#if defined(GIT_BRANCH_NAME) && defined(GIT_TAG_INFO)
#define LOADER_GIT_STRINGIFY(x) #x
#define LOADER_GIT_TOSTRING(x) LOADER_GIT_STRINGIFY(x)
const char git_branch_name[] = LOADER_GIT_TOSTRING(GIT_BRANCH_NAME);
const char git_tag_info[] = LOADER_GIT_TOSTRING(GIT_TAG_INFO);
loader_log(NULL, VULKAN_LOADER_INFO_BIT, 0, "[Git - Tag: %s, Branch/Commit: %s]", git_tag_info, git_branch_name);
#endif
}
void loader_release() {
// Guarantee release of the preloaded ICD libraries. This may have already been called in vkDestroyInstance.
loader_unload_preloaded_icds();
// release mutexes
loader_platform_thread_delete_mutex(&loader_lock);
loader_platform_thread_delete_mutex(&loader_json_lock);
loader_platform_thread_delete_mutex(&loader_preload_icd_lock);
}
// Preload the ICD libraries that are likely to be needed so we don't repeatedly load/unload them later
void loader_preload_icds(void) {
loader_platform_thread_lock_mutex(&loader_preload_icd_lock);
// Already preloaded, skip loading again.
if (scanned_icds.scanned_list != NULL) {
loader_platform_thread_unlock_mutex(&loader_preload_icd_lock);
return;
}
memset(&scanned_icds, 0, sizeof(scanned_icds));
VkResult result = loader_icd_scan(NULL, &scanned_icds);
if (result != VK_SUCCESS) {
loader_scanned_icd_clear(NULL, &scanned_icds);
}
loader_platform_thread_unlock_mutex(&loader_preload_icd_lock);
}
// Release the ICD libraries that were preloaded
void loader_unload_preloaded_icds(void) {
loader_platform_thread_lock_mutex(&loader_preload_icd_lock);
loader_scanned_icd_clear(NULL, &scanned_icds);
loader_platform_thread_unlock_mutex(&loader_preload_icd_lock);
}
#if !defined(_WIN32)
__attribute__((constructor)) void loader_init_library() { loader_initialize(); }
__attribute__((destructor)) void loader_free_library() { loader_release(); }
#endif
// Get next file or dirname given a string list or registry key path
//
// \returns
// A pointer to first char in the next path.
// The next path (or NULL) in the list is returned in next_path.
// Note: input string is modified in some cases. PASS IN A COPY!
char *loader_get_next_path(char *path) {
uint32_t len;
char *next;
if (path == NULL) return NULL;
next = strchr(path, PATH_SEPARATOR);
if (next == NULL) {
len = (uint32_t)strlen(path);
next = path + len;
} else {
*next = '\0';
next++;
}
return next;
}
// Given a path which is absolute or relative, expand the path if relative or
// leave the path unmodified if absolute. The base path to prepend to relative
// paths is given in rel_base.
//
// @return - A string in out_fullpath of the full absolute path
static void loader_expand_path(const char *path, const char *rel_base, size_t out_size, char *out_fullpath) {
if (loader_platform_is_path_absolute(path)) {
// do not prepend a base to an absolute path
rel_base = "";
}
loader_platform_combine_path(out_fullpath, out_size, rel_base, path, NULL);
}
// Given a filename (file) and a list of paths (dir), try to find an existing
// file in the paths. If filename already is a path then no searching in the given paths.
//
// @return - A string in out_fullpath of either the full path or file.
static void loader_get_fullpath(const char *file, const char *dirs, size_t out_size, char *out_fullpath) {
if (!loader_platform_is_path(file) && *dirs) {
char *dirs_copy, *dir, *next_dir;
dirs_copy = loader_stack_alloc(strlen(dirs) + 1);
strcpy(dirs_copy, dirs);
// find if file exists after prepending paths in given list
for (dir = dirs_copy; *dir && (next_dir = loader_get_next_path(dir)); dir = next_dir) {
loader_platform_combine_path(out_fullpath, out_size, dir, file, NULL);
if (loader_platform_file_exists(out_fullpath)) {
return;
}
}
}
(void)snprintf(out_fullpath, out_size, "%s", file);
}
// Read a JSON file into a buffer.
//
// @return - A pointer to a cJSON object representing the JSON parse tree.
// This returned buffer should be freed by caller.
static VkResult loader_get_json(const struct loader_instance *inst, const char *filename, cJSON **json) {
FILE *file = NULL;
char *json_buf = NULL;
size_t len;
VkResult res = VK_SUCCESS;
if (NULL == json) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Received invalid JSON file");
res = VK_ERROR_INITIALIZATION_FAILED;
goto out;
}
*json = NULL;
file = fopen(filename, "rb");
if (!file) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Failed to open JSON file %s", filename);
res = VK_ERROR_INITIALIZATION_FAILED;
goto out;
}
// NOTE: We can't just use fseek(file, 0, SEEK_END) because that isn't guaranteed to be supported on all systems
size_t fread_ret_count = 0;
do {
char buffer[256];
fread_ret_count = fread(buffer, 1, 256, file);
} while (fread_ret_count == 256 && !feof(file));
len = ftell(file);
fseek(file, 0, SEEK_SET);
json_buf = (char *)loader_instance_heap_alloc(inst, len + 1, VK_SYSTEM_ALLOCATION_SCOPE_COMMAND);
if (json_buf == NULL) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_get_json: Failed to allocate space for JSON file %s buffer of length %d", filename, len);
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
if (fread(json_buf, sizeof(char), len, file) != len) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Failed to read JSON file %s.", filename);
res = VK_ERROR_INITIALIZATION_FAILED;
goto out;
}
json_buf[len] = '\0';
// Can't be a valid json if the string is of length zero
if (len == 0) {
res = VK_ERROR_INITIALIZATION_FAILED;
goto out;
}
// Parse text from file
*json = cJSON_Parse(inst, json_buf);
if (*json == NULL) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_get_json: Failed to parse JSON file %s, this is usually because something ran out of memory.", filename);
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
out:
if (NULL != json_buf) {
loader_instance_heap_free(inst, json_buf);
}
if (NULL != file) {
fclose(file);
}
return res;
}
// Verify that all component layers in a meta-layer are valid.
static bool verify_meta_layer_component_layers(const struct loader_instance *inst, struct loader_layer_properties *prop,
struct loader_layer_list *instance_layers) {
bool success = true;
const uint32_t expected_major = VK_API_VERSION_MAJOR(prop->info.specVersion);
const uint32_t expected_minor = VK_API_VERSION_MINOR(prop->info.specVersion);
for (uint32_t comp_layer = 0; comp_layer < prop->num_component_layers; comp_layer++) {
struct loader_layer_properties *comp_prop =
loader_find_layer_property(prop->component_layer_names[comp_layer], instance_layers);
if (comp_prop == NULL) {
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0,
"verify_meta_layer_component_layers: Meta-layer %s can't find component layer %s at index %d."
" Skipping this layer.",
prop->info.layerName, prop->component_layer_names[comp_layer], comp_layer);
success = false;
break;
}
// Check the version of each layer, they need to at least match MAJOR and MINOR
uint32_t cur_major = VK_API_VERSION_MAJOR(comp_prop->info.specVersion);
uint32_t cur_minor = VK_API_VERSION_MINOR(comp_prop->info.specVersion);
if (cur_major != expected_major || cur_minor != expected_minor) {
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0,
"verify_meta_layer_component_layers: Meta-layer uses API version %d.%d, but component "
"layer %d uses API version %d.%d. Skipping this layer.",
expected_major, expected_minor, comp_layer, cur_major, cur_minor);
success = false;
break;
}
// Make sure the layer isn't using it's own name
if (!strcmp(prop->info.layerName, prop->component_layer_names[comp_layer])) {
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0,
"verify_meta_layer_component_layers: Meta-layer %s lists itself in its component layer "
"list at index %d. Skipping this layer.",
prop->info.layerName, comp_layer);
success = false;
break;
}
if (comp_prop->type_flags & VK_LAYER_TYPE_FLAG_META_LAYER) {
loader_log(inst, VULKAN_LOADER_INFO_BIT, 0,
"verify_meta_layer_component_layers: Adding meta-layer %s which also contains meta-layer %s",
prop->info.layerName, comp_prop->info.layerName);
// Make sure if the layer is using a meta-layer in its component list that we also verify that.
if (!verify_meta_layer_component_layers(inst, comp_prop, instance_layers)) {
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0,
"Meta-layer %s component layer %s can not find all component layers."
" Skipping this layer.",
prop->info.layerName, prop->component_layer_names[comp_layer]);
success = false;
break;
}
}
// Add any instance and device extensions from component layers to this layer
// list, so that anyone querying extensions will only need to look at the meta-layer
for (uint32_t ext = 0; ext < comp_prop->instance_extension_list.count; ext++) {
loader_log(inst, VULKAN_LOADER_DEBUG_BIT, 0, "Meta-layer %s component layer %s adding instance extension %s",
prop->info.layerName, prop->component_layer_names[comp_layer],
comp_prop->instance_extension_list.list[ext].extensionName);
if (!has_vk_extension_property(&comp_prop->instance_extension_list.list[ext], &prop->instance_extension_list)) {
loader_add_to_ext_list(inst, &prop->instance_extension_list, 1, &comp_prop->instance_extension_list.list[ext]);
}
}
for (uint32_t ext = 0; ext < comp_prop->device_extension_list.count; ext++) {
loader_log(inst, VULKAN_LOADER_DEBUG_BIT, 0, "Meta-layer %s component layer %s adding device extension %s",
prop->info.layerName, prop->component_layer_names[comp_layer],
comp_prop->device_extension_list.list[ext].props.extensionName);
if (!has_vk_dev_ext_property(&comp_prop->device_extension_list.list[ext].props, &prop->device_extension_list)) {
loader_add_to_dev_ext_list(inst, &prop->device_extension_list, &comp_prop->device_extension_list.list[ext].props, 0,
NULL);
}
}
}
if (success) {
loader_log(inst, VULKAN_LOADER_INFO_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"Meta-layer %s all %d component layers appear to be valid.", prop->info.layerName, prop->num_component_layers);
// If layer logging is on, list the internals included in the meta-layer
if ((loader_get_debug_level() & VULKAN_LOADER_LAYER_BIT) != 0) {
for (uint32_t comp_layer = 0; comp_layer < prop->num_component_layers; comp_layer++) {
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " [%d] %s", comp_layer, prop->component_layer_names[comp_layer]);
}
}
}
return success;
}
// Verify that all meta-layers in a layer list are valid.
static void verify_all_meta_layers(struct loader_instance *inst, struct loader_layer_list *instance_layers,
bool *override_layer_present) {
*override_layer_present = false;
for (int32_t i = 0; i < (int32_t)instance_layers->count; i++) {
struct loader_layer_properties *prop = &instance_layers->list[i];
// If this is a meta-layer, make sure it is valid
if ((prop->type_flags & VK_LAYER_TYPE_FLAG_META_LAYER) &&
!verify_meta_layer_component_layers(inst, prop, instance_layers)) {
loader_log(inst, VULKAN_LOADER_DEBUG_BIT, 0,
"Removing meta-layer %s from instance layer list since it appears invalid.", prop->info.layerName);
loader_remove_layer_in_list(inst, instance_layers, i);
i--;
} else if (prop->is_override && loader_implicit_layer_is_enabled(inst, prop)) {
*override_layer_present = true;
}
}
}
// If the current working directory matches any app_key_path of the layers, remove all other override layers.
// Otherwise if no matching app_key was found, remove all but the global override layer, which has no app_key_path.
static void remove_all_non_valid_override_layers(struct loader_instance *inst, struct loader_layer_list *instance_layers) {
if (instance_layers == NULL) {
return;
}
char cur_path[MAX_STRING_SIZE];
char *ret = loader_platform_executable_path(cur_path, sizeof(cur_path));
if (ret == NULL) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"remove_all_non_valid_override_layers: Failed to get executable path and name");
return;
}
// Find out if there is an override layer with same the app_key_path as the path to the current executable.
// If more than one is found, remove it and use the first layer
// Remove any layers which aren't global and do not have the same app_key_path as the path to the current executable.
bool found_active_override_layer = false;
int global_layer_index = -1;
for (uint32_t i = 0; i < instance_layers->count; i++) {
struct loader_layer_properties *props = &instance_layers->list[i];
if (strcmp(props->info.layerName, VK_OVERRIDE_LAYER_NAME) == 0) {
if (props->num_app_key_paths > 0) { // not the global layer
for (uint32_t j = 0; j < props->num_app_key_paths; j++) {
if (strcmp(props->app_key_paths[j], cur_path) == 0) {
if (!found_active_override_layer) {
found_active_override_layer = true;
} else {
loader_log(
inst, VULKAN_LOADER_WARN_BIT, 0,
"remove_all_non_valid_override_layers: Multiple override layers where the samepath in app_keys "
"was found. Using the first layer found");
// Remove duplicate active override layers that have the same app_key_path
loader_remove_layer_in_list(inst, instance_layers, i);
i--;
}
}
}
if (!found_active_override_layer) {
// Remove non-global override layers that don't have an app_key that matches cur_path
loader_remove_layer_in_list(inst, instance_layers, i);
i--;
}
} else {
if (global_layer_index == -1) {
global_layer_index = i;
} else {
loader_log(
inst, VULKAN_LOADER_WARN_BIT, 0,
"remove_all_non_valid_override_layers: Multiple global override layers found. Using the first global "
"layer found");
loader_remove_layer_in_list(inst, instance_layers, i);
i--;
}
}
}
}
// Remove global layer if layer with same the app_key_path as the path to the current executable is found
if (found_active_override_layer && global_layer_index >= 0) {
loader_remove_layer_in_list(inst, instance_layers, global_layer_index);
}
// Should be at most 1 override layer in the list now.
if (found_active_override_layer) {
loader_log(inst, VULKAN_LOADER_INFO_BIT | VULKAN_LOADER_LAYER_BIT, 0, "Using the override layer for app key %s", cur_path);
} else if (global_layer_index >= 0) {
loader_log(inst, VULKAN_LOADER_INFO_BIT | VULKAN_LOADER_LAYER_BIT, 0, "Using the global override layer");
}
}
static inline bool layer_json_supports_pre_instance_tag(const loader_api_version *layer_json) {
// Supported versions started in 1.1.2, so anything newer
return layer_json->major > 1 || layer_json->minor > 1 || (layer_json->minor == 1 && layer_json->patch > 1);
}
static VkResult loader_read_layer_json(const struct loader_instance *inst, struct loader_layer_list *layer_instance_list,
cJSON *layer_node, loader_api_version version, cJSON *item, bool is_implicit,
char *filename) {
char *temp;
char *name, *type, *library_path_str, *api_version;
char *implementation_version, *description;
cJSON *ext_item;
cJSON *library_path;
cJSON *component_layers;
cJSON *override_paths;
cJSON *blacklisted_layers;
cJSON *disable_environment = NULL;
VkExtensionProperties ext_prop;
VkResult result = VK_ERROR_INITIALIZATION_FAILED;
struct loader_layer_properties *props = NULL;
uint32_t props_index = 0;
int i, j;
// The following are required in the "layer" object:
// (required) "name"
// (required) "type"
// (required) "library_path"
// (required) "api_version"
// (required) "implementation_version"
// (required) "description"
// (required for implicit layers) "disable_environment"
#define GET_JSON_OBJECT(node, var) \
{ \
var = cJSON_GetObjectItem(node, #var); \
if (var == NULL) { \
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0, \
"Didn't find required layer object %s in manifest " \
"JSON file, skipping this layer", \
#var); \
goto out; \
} \
}
#define GET_JSON_ITEM(inst, node, var) \
{ \
item = cJSON_GetObjectItem(node, #var); \
if (item == NULL) { \
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0, \
"Didn't find required layer value %s in manifest JSON " \
"file, skipping this layer", \
#var); \
goto out; \
} \
temp = cJSON_Print(inst, item); \
if (temp == NULL) { \
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0, \
"Problem accessing layer value %s in manifest JSON " \
"file, skipping this layer", \
#var); \
result = VK_ERROR_OUT_OF_HOST_MEMORY; \
goto out; \
} \
temp[strlen(temp) - 1] = '\0'; \
var = loader_stack_alloc(strlen(temp) + 1); \
strcpy(var, &temp[1]); \
cJSON_Free(inst, temp); \
}
GET_JSON_ITEM(inst, layer_node, name)
GET_JSON_ITEM(inst, layer_node, type)
GET_JSON_ITEM(inst, layer_node, api_version)
GET_JSON_ITEM(inst, layer_node, implementation_version)
GET_JSON_ITEM(inst, layer_node, description)
// Add list entry
if (!strcmp(type, "DEVICE")) {
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_LAYER_BIT, 0, "Device layers are deprecated. Skipping this layer");
goto out;
}
// Allow either GLOBAL or INSTANCE type interchangeably to handle
// layers that must work with older loaders
if (!strcmp(type, "INSTANCE") || !strcmp(type, "GLOBAL")) {
if (layer_instance_list == NULL) {
goto out;
}
props = loader_get_next_layer_property_slot(inst, layer_instance_list);
if (NULL == props) {
// Error already triggered in loader_get_next_layer_property_slot.
result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
props_index = layer_instance_list->count - 1;
props->type_flags = VK_LAYER_TYPE_FLAG_INSTANCE_LAYER;
if (!is_implicit) {
props->type_flags |= VK_LAYER_TYPE_FLAG_EXPLICIT_LAYER;
}
} else {
goto out;
}
// Expiration date for override layer. Field starte with JSON file 1.1.2 and
// is completely optional. So, no check put in place.
if (!strcmp(name, VK_OVERRIDE_LAYER_NAME)) {
cJSON *expiration;
if (version.major == 0 || (version.minor == 1 && version.patch < 2) || version.minor == 0) {
loader_log(
inst, VULKAN_LOADER_WARN_BIT, 0,
"Override layer expiration date not added until version 1.1.2. Please update JSON file version appropriately.");
}
props->is_override = true;
expiration = cJSON_GetObjectItem(layer_node, "expiration_date");
if (NULL != expiration) {
char date_copy[32];
uint8_t cur_item = 0;
// Get the string for the current item
temp = cJSON_Print(inst, expiration);
if (temp == NULL) {
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0,
"Problem accessing layer value 'expiration_date' in manifest JSON file, skipping this layer");
result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
temp[strlen(temp) - 1] = '\0';
strcpy(date_copy, &temp[1]);
cJSON_Free(inst, temp);
if (strlen(date_copy) == 16) {
char *cur_start = &date_copy[0];
char *next_dash = strchr(date_copy, '-');
if (NULL != next_dash) {
while (cur_item < 5 && strlen(cur_start)) {
if (next_dash != NULL) {
*next_dash = '\0';
}
switch (cur_item) {
case 0: // Year
props->expiration.year = atoi(cur_start);
break;
case 1: // Month
props->expiration.month = atoi(cur_start);
break;
case 2: // Day
props->expiration.day = atoi(cur_start);
break;
case 3: // Hour
props->expiration.hour = atoi(cur_start);
break;
case 4: // Minute
props->expiration.minute = atoi(cur_start);
props->has_expiration = true;
break;
default: // Ignore
break;
}
if (next_dash != NULL) {
cur_start = next_dash + 1;
next_dash = strchr(cur_start, '-');
}
cur_item++;
}
}
}
}
}
// Library path no longer required unless component_layers is also not defined
library_path = cJSON_GetObjectItem(layer_node, "library_path");
component_layers = cJSON_GetObjectItem(layer_node, "component_layers");
if (NULL != library_path) {
if (NULL != component_layers) {
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0,
"Indicating meta-layer-specific component_layers, but also defining layer library path. Both are not "
"compatible, so skipping this layer");
goto out;
}
props->num_component_layers = 0;
props->component_layer_names = NULL;
temp = cJSON_Print(inst, library_path);
if (NULL == temp) {
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0,
"Problem accessing layer value library_path in manifest JSON file, skipping this layer");
result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
temp[strlen(temp) - 1] = '\0';
library_path_str = loader_stack_alloc(strlen(temp) + 1);
strcpy(library_path_str, &temp[1]);
cJSON_Free(inst, temp);
strncpy(props->manifest_file_name, filename, MAX_STRING_SIZE);
char *fullpath = props->lib_name;
char *rel_base;
if (NULL != library_path_str) {
if (loader_platform_is_path(library_path_str)) {
// A relative or absolute path
char *name_copy = loader_stack_alloc(strlen(filename) + 1);
strcpy(name_copy, filename);
rel_base = loader_platform_dirname(name_copy);
loader_expand_path(library_path_str, rel_base, MAX_STRING_SIZE, fullpath);
} else {
// A filename which is assumed in a system directory
#if defined(DEFAULT_VK_LAYERS_PATH)
loader_get_fullpath(library_path_str, DEFAULT_VK_LAYERS_PATH, MAX_STRING_SIZE, fullpath);
#else
loader_get_fullpath(library_path_str, "", MAX_STRING_SIZE, fullpath);
#endif
}
}
} else if (NULL != component_layers) {
if (version.major == 0 || (version.minor == 1 && version.patch < 1) || (version.minor == 0)) {
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0,
"Indicating meta-layer-specific component_layers, but using older JSON file version.");
}
int count = cJSON_GetArraySize(component_layers);
props->num_component_layers = count;
// Allocate buffer for layer names
props->component_layer_names =
loader_instance_heap_alloc(inst, sizeof(char[MAX_STRING_SIZE]) * count, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (NULL == props->component_layer_names && count > 0) {
result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
// Copy the component layers into the array
for (i = 0; i < count; i++) {
cJSON *comp_layer = cJSON_GetArrayItem(component_layers, i);
if (NULL != comp_layer) {
temp = cJSON_Print(inst, comp_layer);
if (NULL == temp) {
result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
temp[strlen(temp) - 1] = '\0';
strncpy(props->component_layer_names[i], temp + 1, MAX_STRING_SIZE - 1);
props->component_layer_names[i][MAX_STRING_SIZE - 1] = '\0';
cJSON_Free(inst, temp);
}
}
// This is now, officially, a meta-layer
props->type_flags |= VK_LAYER_TYPE_FLAG_META_LAYER;
loader_log(inst, VULKAN_LOADER_INFO_BIT | VULKAN_LOADER_LAYER_BIT, 0, "Encountered meta-layer %s", name);
// Make sure we set up other things so we head down the correct branches below
library_path_str = NULL;
} else {
loader_log(
inst, VULKAN_LOADER_WARN_BIT, 0,
"Layer missing both library_path and component_layers fields. One or the other MUST be defined. Skipping this layer");
goto out;
}
props->num_blacklist_layers = 0;
props->blacklist_layer_names = NULL;
blacklisted_layers = cJSON_GetObjectItem(layer_node, "blacklisted_layers");
if (blacklisted_layers != NULL) {
if (strcmp(name, VK_OVERRIDE_LAYER_NAME)) {
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0,
"Layer %s contains a blacklist, but a blacklist can only be provided by the override metalayer. This "
"blacklist will be ignored.",
name);
} else {
props->num_blacklist_layers = cJSON_GetArraySize(blacklisted_layers);
if (props->num_blacklist_layers > 0) {
// Allocate the blacklist array
props->blacklist_layer_names = loader_instance_heap_alloc(
inst, sizeof(char[MAX_STRING_SIZE]) * props->num_blacklist_layers, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (props->blacklist_layer_names == NULL && props->num_blacklist_layers > 0) {
result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
// Copy the blacklisted layers into the array
for (i = 0; i < (int)props->num_blacklist_layers; ++i) {
cJSON *black_layer = cJSON_GetArrayItem(blacklisted_layers, i);
if (black_layer == NULL) {
continue;
}
temp = cJSON_Print(inst, black_layer);
if (temp == NULL) {
result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
temp[strlen(temp) - 1] = '\0';
strncpy(props->blacklist_layer_names[i], temp + 1, MAX_STRING_SIZE - 1);
props->blacklist_layer_names[i][MAX_STRING_SIZE - 1] = '\0';
cJSON_Free(inst, temp);
}
}
}
}
override_paths = cJSON_GetObjectItem(layer_node, "override_paths");
if (NULL != override_paths) {
if (version.major == 0 || (version.minor == 1 && version.patch < 1) || version.minor == 0) {
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0,
"Indicating meta-layer-specific override paths, but using older JSON file version.");
}
int count = cJSON_GetArraySize(override_paths);
props->num_override_paths = count;
if (count > 0) {
// Allocate buffer for override paths
props->override_paths =
loader_instance_heap_alloc(inst, sizeof(char[MAX_STRING_SIZE]) * count, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (NULL == props->override_paths && count > 0) {
result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
// Copy the override paths into the array
for (i = 0; i < count; i++) {
cJSON *override_path = cJSON_GetArrayItem(override_paths, i);
if (NULL != override_path) {
temp = cJSON_Print(inst, override_path);
if (NULL == temp) {
result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
temp[strlen(temp) - 1] = '\0';
strncpy(props->override_paths[i], temp + 1, MAX_STRING_SIZE - 1);
props->override_paths[i][MAX_STRING_SIZE - 1] = '\0';
cJSON_Free(inst, temp);
}
}
}
}
if (is_implicit) {
GET_JSON_OBJECT(layer_node, disable_environment)
}
#undef GET_JSON_ITEM
#undef GET_JSON_OBJECT
strncpy(props->info.layerName, name, sizeof(props->info.layerName));
props->info.layerName[sizeof(props->info.layerName) - 1] = '\0';
if (0 != strncmp(props->info.layerName, "VK_LAYER_", 9)) {
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0, "Layer name %s does not conform to naming standard (Policy #LLP_LAYER_3)",
props->info.layerName);
}
props->info.specVersion = loader_make_version(api_version);
props->info.implementationVersion = atoi(implementation_version);
strncpy((char *)props->info.description, description, sizeof(props->info.description));
props->info.description[sizeof(props->info.description) - 1] = '\0';
if (is_implicit) {
if (!disable_environment || !disable_environment->child) {
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0,
"Didn't find required layer child value disable_environment in manifest JSON file, skipping this layer "
"(Policy #LLP_LAYER_9)");
goto out;
}
strncpy(props->disable_env_var.name, disable_environment->child->string, sizeof(props->disable_env_var.name));
props->disable_env_var.name[sizeof(props->disable_env_var.name) - 1] = '\0';
strncpy(props->disable_env_var.value, disable_environment->child->valuestring, sizeof(props->disable_env_var.value));
props->disable_env_var.value[sizeof(props->disable_env_var.value) - 1] = '\0';
}
// Make sure the layer's manifest doesn't contain a non zero variant value
if (VK_API_VERSION_VARIANT(props->info.specVersion) != 0) {
loader_log(inst, VULKAN_LOADER_INFO_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"Layer %s has an \'api_version\' field which contains a non-zero variant value of %d. "
" Skipping Layer.",
props->info.layerName, VK_API_VERSION_VARIANT(props->info.specVersion));
goto out;
}
// Now get all optional items and objects and put in list:
// functions
// instance_extensions
// device_extensions
// enable_environment (implicit layers only)
#define GET_JSON_OBJECT(node, var) \
{ var = cJSON_GetObjectItem(node, #var); }
#define GET_JSON_ITEM(inst, node, var) \
{ \
item = cJSON_GetObjectItem(node, #var); \
if (item != NULL) { \
temp = cJSON_Print(inst, item); \
if (temp != NULL) { \
temp[strlen(temp) - 1] = '\0'; \
var = loader_stack_alloc(strlen(temp) + 1); \
strcpy(var, &temp[1]); \
cJSON_Free(inst, temp); \
} else { \
result = VK_ERROR_OUT_OF_HOST_MEMORY; \
goto out; \
} \
} \
}
cJSON *instance_extensions, *device_extensions, *functions, *enable_environment;
cJSON *entrypoints = NULL;
char *vkGetInstanceProcAddr = NULL;
char *vkGetDeviceProcAddr = NULL;
char *vkNegotiateLoaderLayerInterfaceVersion = NULL;
char *spec_version = NULL;
char **entry_array = NULL;
cJSON *app_keys = NULL;
// Layer interface functions
// vkGetInstanceProcAddr
// vkGetDeviceProcAddr
// vkNegotiateLoaderLayerInterfaceVersion (starting with JSON file 1.1.0)
GET_JSON_OBJECT(layer_node, functions)
if (functions != NULL) {
if (version.major > 1 || version.minor >= 1) {
GET_JSON_ITEM(inst, functions, vkNegotiateLoaderLayerInterfaceVersion)
if (vkNegotiateLoaderLayerInterfaceVersion != NULL)
strncpy(props->functions.str_negotiate_interface, vkNegotiateLoaderLayerInterfaceVersion,
sizeof(props->functions.str_negotiate_interface));
props->functions.str_negotiate_interface[sizeof(props->functions.str_negotiate_interface) - 1] = '\0';
} else {
props->functions.str_negotiate_interface[0] = '\0';
}
GET_JSON_ITEM(inst, functions, vkGetInstanceProcAddr)
GET_JSON_ITEM(inst, functions, vkGetDeviceProcAddr)
if (vkGetInstanceProcAddr != NULL) {
strncpy(props->functions.str_gipa, vkGetInstanceProcAddr, sizeof(props->functions.str_gipa));
if (version.major > 1 || version.minor >= 1) {
loader_log(inst, VULKAN_LOADER_INFO_BIT, 0,
"Layer \"%s\" using deprecated \'vkGetInstanceProcAddr\' tag which was deprecated starting with JSON "
"file version 1.1.0. The new vkNegotiateLoaderLayerInterfaceVersion function is preferred, though for "
"compatibility reasons it may be desirable to continue using the deprecated tag.",
name);
}
}
props->functions.str_gipa[sizeof(props->functions.str_gipa) - 1] = '\0';
if (vkGetDeviceProcAddr != NULL) {
strncpy(props->functions.str_gdpa, vkGetDeviceProcAddr, sizeof(props->functions.str_gdpa));
if (version.major > 1 || version.minor >= 1) {
loader_log(inst, VULKAN_LOADER_INFO_BIT, 0,
"Layer \"%s\" using deprecated \'vkGetDeviceProcAddr\' tag which was deprecated starting with JSON "
"file version 1.1.0. The new vkNegotiateLoaderLayerInterfaceVersion function is preferred, though for "
"compatibility reasons it may be desirable to continue using the deprecated tag.",
name);
}
}
props->functions.str_gdpa[sizeof(props->functions.str_gdpa) - 1] = '\0';
}
// instance_extensions
// array of {
// name
// spec_version
// }
GET_JSON_OBJECT(layer_node, instance_extensions)
if (instance_extensions != NULL) {
int count = cJSON_GetArraySize(instance_extensions);
for (i = 0; i < count; i++) {
ext_item = cJSON_GetArrayItem(instance_extensions, i);
GET_JSON_ITEM(inst, ext_item, name)
if (name != NULL) {
strncpy(ext_prop.extensionName, name, sizeof(ext_prop.extensionName));
ext_prop.extensionName[sizeof(ext_prop.extensionName) - 1] = '\0';
}
GET_JSON_ITEM(inst, ext_item, spec_version)
if (NULL != spec_version) {
ext_prop.specVersion = atoi(spec_version);
} else {
ext_prop.specVersion = 0;
}
bool ext_unsupported = wsi_unsupported_instance_extension(&ext_prop);
if (!ext_unsupported) {
loader_add_to_ext_list(inst, &props->instance_extension_list, 1, &ext_prop);
}
}
}
// device_extensions
// array of {
// name
// spec_version
// entrypoints
// }
GET_JSON_OBJECT(layer_node, device_extensions)
if (device_extensions != NULL) {
int count = cJSON_GetArraySize(device_extensions);
for (i = 0; i < count; i++) {
ext_item = cJSON_GetArrayItem(device_extensions, i);
GET_JSON_ITEM(inst, ext_item, name)
GET_JSON_ITEM(inst, ext_item, spec_version)
if (name != NULL) {
strncpy(ext_prop.extensionName, name, sizeof(ext_prop.extensionName));
ext_prop.extensionName[sizeof(ext_prop.extensionName) - 1] = '\0';
}
if (NULL != spec_version) {
ext_prop.specVersion = atoi(spec_version);
} else {
ext_prop.specVersion = 0;
}
// entrypoints = cJSON_GetObjectItem(ext_item, "entrypoints");
GET_JSON_OBJECT(ext_item, entrypoints)
int entry_count;
if (entrypoints == NULL) {
loader_add_to_dev_ext_list(inst, &props->device_extension_list, &ext_prop, 0, NULL);
continue;
}
entry_count = cJSON_GetArraySize(entrypoints);
if (entry_count) {
entry_array = (char **)loader_stack_alloc(sizeof(char *) * entry_count);
}
for (j = 0; j < entry_count; j++) {
ext_item = cJSON_GetArrayItem(entrypoints, j);
if (ext_item != NULL) {
temp = cJSON_Print(inst, ext_item);
if (NULL == temp) {
entry_array[j] = NULL;
result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
temp[strlen(temp) - 1] = '\0';
entry_array[j] = loader_stack_alloc(strlen(temp) + 1);
strcpy(entry_array[j], &temp[1]);
cJSON_Free(inst, temp);
}
}
loader_add_to_dev_ext_list(inst, &props->device_extension_list, &ext_prop, entry_count, entry_array);
}
}
if (is_implicit) {
GET_JSON_OBJECT(layer_node, enable_environment)
// enable_environment is optional
if (enable_environment) {
strncpy(props->enable_env_var.name, enable_environment->child->string, sizeof(props->enable_env_var.name));
props->enable_env_var.name[sizeof(props->enable_env_var.name) - 1] = '\0';
strncpy(props->enable_env_var.value, enable_environment->child->valuestring, sizeof(props->enable_env_var.value));
props->enable_env_var.value[sizeof(props->enable_env_var.value) - 1] = '\0';
}
}
// Read in the pre-instance stuff
cJSON *pre_instance = cJSON_GetObjectItem(layer_node, "pre_instance_functions");
if (NULL != pre_instance) {
if (!layer_json_supports_pre_instance_tag(&version)) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"Found pre_instance_functions section in layer from \"%s\". This section is only valid in manifest version "
"1.1.2 or later. The section will be ignored",
filename);
} else if (!is_implicit) {
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0,
"Found pre_instance_functions section in explicit layer from \"%s\". This section is only valid in implicit "
"layers. The section will be ignored",
filename);
} else {
cJSON *inst_ext_json = cJSON_GetObjectItem(pre_instance, "vkEnumerateInstanceExtensionProperties");
if (NULL != inst_ext_json) {
char *inst_ext_name = cJSON_Print(inst, inst_ext_json);
if (NULL == inst_ext_name) {
result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
size_t len = strlen(inst_ext_name) >= MAX_STRING_SIZE ? MAX_STRING_SIZE - 3 : strlen(inst_ext_name) - 2;
strncpy(props->pre_instance_functions.enumerate_instance_extension_properties, inst_ext_name + 1, len);
props->pre_instance_functions.enumerate_instance_extension_properties[len] = '\0';
cJSON_Free(inst, inst_ext_name);
}
cJSON *inst_layer_json = cJSON_GetObjectItem(pre_instance, "vkEnumerateInstanceLayerProperties");
if (NULL != inst_layer_json) {
char *inst_layer_name = cJSON_Print(inst, inst_layer_json);
if (NULL == inst_layer_name) {
result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
size_t len = strlen(inst_layer_name) >= MAX_STRING_SIZE ? MAX_STRING_SIZE - 3 : strlen(inst_layer_name) - 2;
strncpy(props->pre_instance_functions.enumerate_instance_layer_properties, inst_layer_name + 1, len);
props->pre_instance_functions.enumerate_instance_layer_properties[len] = '\0';
cJSON_Free(inst, inst_layer_name);
}
cJSON *inst_version_json = cJSON_GetObjectItem(pre_instance, "vkEnumerateInstanceVersion");
if (NULL != inst_version_json) {
char *inst_version_name = cJSON_Print(inst, inst_version_json);
if (NULL == inst_version_name) {
result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
size_t len = strlen(inst_version_name) >= MAX_STRING_SIZE ? MAX_STRING_SIZE - 3 : strlen(inst_version_name) - 2;
strncpy(props->pre_instance_functions.enumerate_instance_version, inst_version_name + 1, len);
props->pre_instance_functions.enumerate_instance_version[len] = '\0';
cJSON_Free(inst, inst_version_name);
}
}
}
props->num_app_key_paths = 0;
props->app_key_paths = NULL;
app_keys = cJSON_GetObjectItem(layer_node, "app_keys");
if (app_keys != NULL) {
if (strcmp(name, VK_OVERRIDE_LAYER_NAME)) {
loader_log(inst, VULKAN_LOADER_WARN_BIT, 0,
"Layer %s contains app_keys, but any app_keys can only be provided by the override metalayer. "
"These will be ignored.",
name);
} else {
props->num_app_key_paths = cJSON_GetArraySize(app_keys);
// Allocate the blacklist array
props->app_key_paths = loader_instance_heap_alloc(inst, sizeof(char[MAX_STRING_SIZE]) * props->num_app_key_paths,
VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (props->app_key_paths == NULL) {
result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
// Copy the app_key_paths into the array
for (i = 0; i < (int)props->num_app_key_paths; ++i) {
cJSON *app_key_path = cJSON_GetArrayItem(app_keys, i);
if (app_key_path == NULL) {
continue;
}
temp = cJSON_Print(inst, app_key_path);
if (temp == NULL) {
result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
temp[strlen(temp) - 1] = '\0';
strncpy(props->app_key_paths[i], temp + 1, MAX_STRING_SIZE - 1);
props->app_key_paths[i][MAX_STRING_SIZE - 1] = '\0';
cJSON_Free(inst, temp);
}
}
}
result = VK_SUCCESS;
out:
#undef GET_JSON_ITEM
#undef GET_JSON_OBJECT
if (VK_SUCCESS != result && NULL != props) {
// Make sure to free anything that was allocated
loader_remove_layer_in_list(inst, layer_instance_list, props_index);
}
return result;
}
static inline bool is_valid_layer_json_version(const loader_api_version *layer_json) {
// Supported versions are: 1.0.0, 1.0.1, 1.1.0 - 1.1.2, and 1.2.0 - 1.2.1.
if ((layer_json->major == 1 && layer_json->minor == 2 && layer_json->patch < 2) ||
(layer_json->major == 1 && layer_json->minor == 1 && layer_json->patch < 3) ||
(layer_json->major == 1 && layer_json->minor == 0 && layer_json->patch < 2)) {
return true;
}
return false;
}
static inline bool layer_json_supports_multiple_layers(const loader_api_version *layer_json) {
// Supported versions started in 1.0.1, so anything newer
if ((layer_json->major > 1 || layer_json->minor > 0 || layer_json->patch > 1)) {
return true;
}
return false;
}
// Given a cJSON struct (json) of the top level JSON object from layer manifest
// file, add entry to the layer_list. Fill out the layer_properties in this list
// entry from the input cJSON object.
//
// \returns
// void
// layer_list has a new entry and initialized accordingly.
// If the json input object does not have all the required fields no entry
// is added to the list.
static VkResult loader_add_layer_properties(const struct loader_instance *inst, struct loader_layer_list *layer_instance_list,
cJSON *json, bool is_implicit, char *filename) {
// The following Fields in layer manifest file that are required:
// - "file_format_version"
// - If more than one "layer" object are used, then the "layers" array is
// required
VkResult result = VK_ERROR_INITIALIZATION_FAILED;
cJSON *item, *layers_node, *layer_node;
loader_api_version json_version = {0, 0, 0};
// Make sure sure the top level json value is an object
if (!json || json->type != 6) {
goto out;
}
item = cJSON_GetObjectItem(json, "file_format_version");
if (item == NULL) {
goto out;
}
char *file_vers = cJSON_PrintUnformatted(inst, item);
if (NULL == file_vers) {
goto out;
}
loader_log(inst, VULKAN_LOADER_INFO_BIT, 0, "Found manifest file %s (file version %s)", filename, file_vers);
// Get the major/minor/and patch as integers for easier comparison
json_version = loader_make_api_version(file_vers);
if (!is_valid_layer_json_version(&json_version)) {
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"loader_add_layer_properties: %s invalid layer manifest file version %d.%d.%d. May cause errors.", filename,
json_version.major, json_version.minor, json_version.patch);
}
cJSON_Free(inst, file_vers);
// If "layers" is present, read in the array of layer objects
layers_node = cJSON_GetObjectItem(json, "layers");
if (layers_node != NULL) {
int numItems = cJSON_GetArraySize(layers_node);
if (!layer_json_supports_multiple_layers(&json_version)) {
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"loader_add_layer_properties: \'layers\' tag not supported until file version 1.0.1, but %s is reporting "
"version %s",
filename, file_vers);
}
for (int curLayer = 0; curLayer < numItems; curLayer++) {
layer_node = cJSON_GetArrayItem(layers_node, curLayer);
if (layer_node == NULL) {
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"loader_add_layer_properties: Can not find 'layers' array element %d object in manifest JSON file %s. "
"Skipping this file",
curLayer, filename);
goto out;
}
result = loader_read_layer_json(inst, layer_instance_list, layer_node, json_version, item, is_implicit, filename);
}
} else {
// Otherwise, try to read in individual layers
layer_node = cJSON_GetObjectItem(json, "layer");
if (layer_node == NULL) {
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"loader_add_layer_properties: Can not find 'layer' object in manifest JSON file %s. Skipping this file.",
filename);
goto out;
}
// Loop through all "layer" objects in the file to get a count of them
// first.
uint16_t layer_count = 0;
cJSON *tempNode = layer_node;
do {
tempNode = tempNode->next;
layer_count++;
} while (tempNode != NULL);
// Throw a warning if we encounter multiple "layer" objects in file
// versions newer than 1.0.0. Having multiple objects with the same
// name at the same level is actually a JSON standard violation.
if (layer_count > 1 && layer_json_supports_multiple_layers(&json_version)) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"loader_add_layer_properties: Multiple 'layer' nodes are deprecated starting in file version \"1.0.1\". "
"Please use 'layers' : [] array instead in %s.",
filename);
} else {
do {
result = loader_read_layer_json(inst, layer_instance_list, layer_node, json_version, item, is_implicit, filename);
layer_node = layer_node->next;
} while (layer_node != NULL);
}
}
out:
return result;
}
static inline size_t determine_data_file_path_size(const char *cur_path, size_t relative_path_size) {
size_t path_size = 0;
if (NULL != cur_path) {
// For each folder in cur_path, (detected by finding additional
// path separators in the string) we need to add the relative path on
// the end. Plus, leave an additional two slots on the end to add an
// additional directory slash and path separator if needed
path_size += strlen(cur_path) + relative_path_size + 2;
for (const char *x = cur_path; *x; ++x) {
if (*x == PATH_SEPARATOR) {
path_size += relative_path_size + 2;
}
}
}
return path_size;
}
static inline void copy_data_file_path(const char *cur_path, const char *relative_path, size_t relative_path_size,
char **output_path) {
if (NULL != cur_path) {
uint32_t start = 0;
uint32_t stop = 0;
char *cur_write = *output_path;
while (cur_path[start] != '\0') {
while (cur_path[start] == PATH_SEPARATOR) {
start++;
}
stop = start;
while (cur_path[stop] != PATH_SEPARATOR && cur_path[stop] != '\0') {
stop++;
}
const size_t s = stop - start;
if (s) {
memcpy(cur_write, &cur_path[start], s);
cur_write += s;
// If last symbol written was not a directory symbol, add it.
if (*(cur_write - 1) != DIRECTORY_SYMBOL) {
*cur_write++ = DIRECTORY_SYMBOL;
}
if (relative_path_size > 0) {
memcpy(cur_write, relative_path, relative_path_size);
cur_write += relative_path_size;
}
*cur_write++ = PATH_SEPARATOR;
start = stop;
}
}
*output_path = cur_write;
}
}
// Check to see if there's enough space in the data file list. If not, add some.
static inline VkResult check_and_adjust_data_file_list(const struct loader_instance *inst, struct loader_data_files *out_files) {
if (out_files->count == 0) {
out_files->filename_list = loader_instance_heap_alloc(inst, 64 * sizeof(char *), VK_SYSTEM_ALLOCATION_SCOPE_COMMAND);
if (NULL == out_files->filename_list) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"check_and_adjust_data_file_list: Failed to allocate space for manifest file name list");
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
out_files->alloc_count = 64;
} else if (out_files->count == out_files->alloc_count) {
size_t new_size = out_files->alloc_count * sizeof(char *) * 2;
void *new_ptr = loader_instance_heap_realloc(inst, out_files->filename_list, out_files->alloc_count * sizeof(char *),
new_size, VK_SYSTEM_ALLOCATION_SCOPE_COMMAND);
if (NULL == new_ptr) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"check_and_adjust_data_file_list: Failed to reallocate space for manifest file name list");
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
out_files->filename_list = new_ptr;
out_files->alloc_count *= 2;
}
return VK_SUCCESS;
}
// add file_name to the out_files manifest list. Assumes its a valid manifest file name
static VkResult add_manifest_file(const struct loader_instance *inst, const char *file_name, struct loader_data_files *out_files) {
VkResult vk_result = VK_SUCCESS;
// Check and allocate space in the manifest list if necessary
vk_result = check_and_adjust_data_file_list(inst, out_files);
if (VK_SUCCESS != vk_result) {
goto out;
}
out_files->filename_list[out_files->count] =
loader_instance_heap_alloc(inst, strlen(file_name) + 1, VK_SYSTEM_ALLOCATION_SCOPE_COMMAND);
if (out_files->filename_list[out_files->count] == NULL) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "add_manifest_file: Failed to allocate space for manifest file %d list",
out_files->count);
vk_result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
strcpy(out_files->filename_list[out_files->count++], file_name);
out:
return vk_result;
}
// If the file found is a manifest file name, add it to the out_files manifest list.
static VkResult add_if_manifest_file(const struct loader_instance *inst, const char *file_name,
struct loader_data_files *out_files) {
VkResult vk_result = VK_SUCCESS;
assert(NULL != file_name && "add_if_manifest_file: Received NULL pointer for file_name");
assert(NULL != out_files && "add_if_manifest_file: Received NULL pointer for out_files");
// Look for files ending with ".json" suffix
size_t name_len = strlen(file_name);
const char *name_suffix = file_name + name_len - 5;
if ((name_len < 5) || 0 != strncmp(name_suffix, ".json", 5)) {
// Use incomplete to indicate invalid name, but to keep going.
vk_result = VK_INCOMPLETE;
goto out;
}
vk_result = add_manifest_file(inst, file_name, out_files);
out:
return vk_result;
}
VkResult add_data_files_in_path(const struct loader_instance *inst, char *search_path, bool is_directory_list,
struct loader_data_files *out_files, bool use_first_found_manifest) {
VkResult vk_result = VK_SUCCESS;
DIR *dir_stream = NULL;
struct dirent *dir_entry;
char *cur_file;
char *next_file;
char *name;
char full_path[2048];
#ifndef _WIN32
char temp_path[2048];
#endif
// Now, parse the paths
next_file = search_path;
while (NULL != next_file && *next_file != '\0') {
name = NULL;
cur_file = next_file;
next_file = loader_get_next_path(cur_file);
// Get the next name in the list and verify it's valid
if (is_directory_list) {
dir_stream = loader_opendir(inst, cur_file);
if (NULL == dir_stream) {
continue;
}
while (1) {
dir_entry = readdir(dir_stream);
if (NULL == dir_entry) {
break;
}
name = &(dir_entry->d_name[0]);
loader_get_fullpath(name, cur_file, sizeof(full_path), full_path);
name = full_path;
VkResult local_res;
local_res = add_if_manifest_file(inst, name, out_files);
// Incomplete means this was not a valid data file.
if (local_res == VK_INCOMPLETE) {
continue;
} else if (local_res != VK_SUCCESS) {
vk_result = local_res;
break;
}
}
loader_closedir(inst, dir_stream);
if (vk_result != VK_SUCCESS) {
goto out;
}
} else {
#ifdef _WIN32
name = cur_file;
#else
// Only Linux has relative paths, make a copy of location so it isn't modified
size_t str_len;
if (NULL != next_file) {
str_len = next_file - cur_file + 1;
} else {
str_len = strlen(cur_file) + 1;
}
if (str_len > sizeof(temp_path)) {
loader_log(inst, VULKAN_LOADER_DEBUG_BIT, 0, "add_data_files_in_path: Path to %s too long\n", cur_file);
continue;
}
strcpy(temp_path, cur_file);
name = temp_path;
#endif
loader_get_fullpath(cur_file, name, sizeof(full_path), full_path);
name = full_path;
VkResult local_res;
local_res = add_if_manifest_file(inst, name, out_files);
// Incomplete means this was not a valid data file.
if (local_res == VK_INCOMPLETE) {
continue;
} else if (local_res != VK_SUCCESS) {
vk_result = local_res;
break;
}
}
if (use_first_found_manifest && out_files->count > 0) {
break;
}
}
out:
return vk_result;
}
// Look for data files in the provided paths, but first check the environment override to determine if we should use that
// instead.
static VkResult read_data_files_in_search_paths(const struct loader_instance *inst, enum loader_data_files_type data_file_type,
const char *env_override, const char *path_override, const char *relative_location,
bool *override_active, struct loader_data_files *out_files) {
VkResult vk_result = VK_SUCCESS;
bool is_directory_list = true;
bool is_icd = (data_file_type == LOADER_DATA_FILE_MANIFEST_ICD);
char *override_env = NULL;
const char *override_path = NULL;
size_t search_path_size = 0;
char *search_path = NULL;
char *cur_path_ptr = NULL;
size_t rel_size = 0;
bool use_first_found_manifest = false;
#ifndef _WIN32
bool xdg_config_home_secenv_alloc = true;
bool xdg_config_dirs_secenv_alloc = true;
bool xdg_data_home_secenv_alloc = true;
bool xdg_data_dirs_secenv_alloc = true;
#endif
#ifndef _WIN32
// Determine how much space is needed to generate the full search path
// for the current manifest files.
char *xdg_config_home = loader_secure_getenv("XDG_CONFIG_HOME", inst);
if (NULL == xdg_config_home) {
xdg_config_home_secenv_alloc = false;
}
char *xdg_config_dirs = loader_secure_getenv("XDG_CONFIG_DIRS", inst);
if (NULL == xdg_config_dirs) {
xdg_config_dirs_secenv_alloc = false;
}
#if !defined(__Fuchsia__) && !defined(__QNXNTO__)
if (NULL == xdg_config_dirs || '\0' == xdg_config_dirs[0]) {
xdg_config_dirs = FALLBACK_CONFIG_DIRS;
}
#endif
char *xdg_data_home = loader_secure_getenv("XDG_DATA_HOME", inst);
if (NULL == xdg_data_home) {
xdg_data_home_secenv_alloc = false;
}
char *xdg_data_dirs = loader_secure_getenv("XDG_DATA_DIRS", inst);
if (NULL == xdg_data_dirs) {
xdg_data_dirs_secenv_alloc = false;
}
#if !defined(__Fuchsia__) && !defined(__QNXNTO__)
if (NULL == xdg_data_dirs || '\0' == xdg_data_dirs[0]) {
xdg_data_dirs = FALLBACK_DATA_DIRS;
}
#endif
char *home = NULL;
char *default_data_home = NULL;
char *default_config_home = NULL;
// Only use HOME if XDG_DATA_HOME is not present on the system
home = loader_secure_getenv("HOME", inst);
if (home != NULL) {
if (NULL == xdg_config_home || '\0' == xdg_config_home[0]) {
const char config_suffix[] = "/.config";
default_config_home =
loader_instance_heap_alloc(inst, strlen(home) + strlen(config_suffix) + 1, VK_SYSTEM_ALLOCATION_SCOPE_COMMAND);
if (default_config_home == NULL) {
vk_result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
strcpy(default_config_home, home);
strcat(default_config_home, config_suffix);
}
if (NULL == xdg_data_home || '\0' == xdg_data_home[0]) {
const char data_suffix[] = "/.local/share";
default_data_home =
loader_instance_heap_alloc(inst, strlen(home) + strlen(data_suffix) + 1, VK_SYSTEM_ALLOCATION_SCOPE_COMMAND);
if (default_data_home == NULL) {
vk_result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
strcpy(default_data_home, home);
strcat(default_data_home, data_suffix);
}
}
#endif // !_WIN32
if (path_override != NULL) {
override_path = path_override;
} else if (env_override != NULL) {
#ifndef _WIN32
if (geteuid() != getuid() || getegid() != getgid()) {
// Don't allow setuid apps to use the env var:
env_override = NULL;
} else
#endif
{
override_env = loader_secure_getenv(env_override, inst);
// The ICD override is actually a specific list of filenames, not directories
if (is_icd && NULL != override_env) {
is_directory_list = false;
}
override_path = override_env;
}
}
// Add two by default for NULL terminator and one path separator on end (just in case)
search_path_size = 2;
// If there's an override, use that (and the local folder if required) and nothing else
if (NULL != override_path) {
// Local folder and null terminator
search_path_size += strlen(override_path) + 1;
} else if (NULL == relative_location) {
// If there's no override, and no relative location, bail out. This is usually
// the case when we're on Windows and the default path is to use the registry.
goto out;
} else {
// Add the general search folders (with the appropriate relative folder added)
rel_size = strlen(relative_location);
if (rel_size == 0) {
goto out;
} else {
#if defined(__APPLE__)
search_path_size += MAXPATHLEN;
#endif
#ifndef _WIN32
// Only add the home folders if not ICD filenames or superuser
if (is_directory_list && !is_high_integrity()) {
if (NULL != default_config_home) {
search_path_size += determine_data_file_path_size(default_config_home, rel_size);
} else {
search_path_size += determine_data_file_path_size(xdg_config_home, rel_size);
}
}
search_path_size += determine_data_file_path_size(xdg_config_dirs, rel_size);
search_path_size += determine_data_file_path_size(SYSCONFDIR, rel_size);
#if defined(EXTRASYSCONFDIR)
search_path_size += determine_data_file_path_size(EXTRASYSCONFDIR, rel_size);
#endif
// Only add the home folders if not ICD filenames or superuser
if (is_directory_list && !is_high_integrity()) {
if (NULL != default_data_home) {
search_path_size += determine_data_file_path_size(default_data_home, rel_size);
} else {
search_path_size += determine_data_file_path_size(xdg_data_home, rel_size);
}
}
search_path_size += determine_data_file_path_size(xdg_data_dirs, rel_size);
#endif // !_WIN32
}
}
// Allocate the required space
search_path = loader_instance_heap_alloc(inst, search_path_size, VK_SYSTEM_ALLOCATION_SCOPE_COMMAND);
if (NULL == search_path) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"read_data_files_in_search_paths: Failed to allocate space for search path of length %d",
(uint32_t)search_path_size);
vk_result = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
cur_path_ptr = search_path;
// Add the remaining paths to the list
if (NULL != override_path) {
strcpy(cur_path_ptr, override_path);
} else {
#ifndef _WIN32
if (rel_size > 0) {
#if defined(__APPLE__)
// Add the bundle's Resources dir to the beginning of the search path.
// Looks for manifests in the bundle first, before any system directories.
CFBundleRef main_bundle = CFBundleGetMainBundle();
if (NULL != main_bundle) {
CFURLRef ref = CFBundleCopyResourcesDirectoryURL(main_bundle);
if (NULL != ref) {
if (CFURLGetFileSystemRepresentation(ref, TRUE, (UInt8 *)cur_path_ptr, search_path_size)) {
cur_path_ptr += strlen(cur_path_ptr);
*cur_path_ptr++ = DIRECTORY_SYMBOL;
memcpy(cur_path_ptr, relative_location, rel_size);
cur_path_ptr += rel_size;
*cur_path_ptr++ = PATH_SEPARATOR;
// only for ICD manifests
if (env_override != NULL && strcmp(VK_ICD_FILENAMES_ENV_VAR, env_override) == 0) {
use_first_found_manifest = true;
}
}
CFRelease(ref);
}
}
#endif // __APPLE__
// Only add the home folders if not ICD filenames or superuser
if (is_directory_list && !is_high_integrity()) {
if (NULL != default_config_home) {
copy_data_file_path(default_config_home, relative_location, rel_size, &cur_path_ptr);
} else {
copy_data_file_path(xdg_config_home, relative_location, rel_size, &cur_path_ptr);
}
}
copy_data_file_path(xdg_config_dirs, relative_location, rel_size, &cur_path_ptr);
copy_data_file_path(SYSCONFDIR, relative_location, rel_size, &cur_path_ptr);
#if defined(EXTRASYSCONFDIR)
copy_data_file_path(EXTRASYSCONFDIR, relative_location, rel_size, &cur_path_ptr);
#endif
// Only add the home folders if not ICD filenames or superuser
if (is_directory_list && !is_high_integrity()) {
if (NULL != default_data_home) {
copy_data_file_path(default_data_home, relative_location, rel_size, &cur_path_ptr);
} else {
copy_data_file_path(xdg_data_home, relative_location, rel_size, &cur_path_ptr);
}
}
copy_data_file_path(xdg_data_dirs, relative_location, rel_size, &cur_path_ptr);
}
// Remove the last path separator
--cur_path_ptr;
assert(cur_path_ptr - search_path < (ptrdiff_t)search_path_size);
*cur_path_ptr = '\0';
#endif // !_WIN32
}
// Remove duplicate paths, or it would result in duplicate extensions, duplicate devices, etc.
// This uses minimal memory, but is O(N^2) on the number of paths. Expect only a few paths.
char path_sep_str[2] = {PATH_SEPARATOR, '\0'};
size_t search_path_updated_size = strlen(search_path);
for (size_t first = 0; first < search_path_updated_size;) {
// If this is an empty path, erase it
if (search_path[first] == PATH_SEPARATOR) {
memmove(&search_path[first], &search_path[first + 1], search_path_updated_size - first + 1);
search_path_updated_size -= 1;
continue;
}
size_t first_end = first + 1;
first_end += strcspn(&search_path[first_end], path_sep_str);
for (size_t second = first_end + 1; second < search_path_updated_size;) {
size_t second_end = second + 1;
second_end += strcspn(&search_path[second_end], path_sep_str);
if (first_end - first == second_end - second &&
!strncmp(&search_path[first], &search_path[second], second_end - second)) {
// Found duplicate. Include PATH_SEPARATOR in second_end, then erase it from search_path.
if (search_path[second_end] == PATH_SEPARATOR) {
second_end++;
}
memmove(&search_path[second], &search_path[second_end], search_path_updated_size - second_end + 1);
search_path_updated_size -= second_end - second;
} else {
second = second_end + 1;
}
}
first = first_end + 1;
}
search_path_size = search_path_updated_size;
// Print out the paths being searched if debugging is enabled
uint32_t log_flags = 0;
if (search_path_size > 0) {
char *tmp_search_path = loader_instance_heap_alloc(inst, search_path_size + 1, VK_SYSTEM_ALLOCATION_SCOPE_COMMAND);
if (NULL != tmp_search_path) {
strncpy(tmp_search_path, search_path, search_path_size);
tmp_search_path[search_path_size] = '\0';
if (data_file_type == LOADER_DATA_FILE_MANIFEST_ICD) {
log_flags = VULKAN_LOADER_DRIVER_BIT;
loader_log(inst, VULKAN_LOADER_DRIVER_BIT, 0, "Searching for driver manifest files");
} else {
log_flags = VULKAN_LOADER_LAYER_BIT;
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, "Searching for layer manifest files");
}
loader_log(inst, log_flags, 0, " In following folders:");
char *cur_file;
char *next_file = tmp_search_path;
while (NULL != next_file && *next_file != '\0') {
cur_file = next_file;
next_file = loader_get_next_path(cur_file);
loader_log(inst, log_flags, 0, " %s", cur_file);
}
loader_instance_heap_free(inst, tmp_search_path);
}
}
// Now, parse the paths and add any manifest files found in them.
vk_result = add_data_files_in_path(inst, search_path, is_directory_list, out_files, use_first_found_manifest);
if (log_flags != 0 && out_files->count > 0) {
loader_log(inst, log_flags, 0, " Found the following files:");
for (uint32_t cur_file = 0; cur_file < out_files->count; ++cur_file) {
loader_log(inst, log_flags, 0, " %s", out_files->filename_list[cur_file]);
}
} else {
loader_log(inst, log_flags, 0, " Found no files");
}
if (NULL != override_path) {
*override_active = true;
} else {
*override_active = false;
}
out:
if (NULL != override_env) {
loader_free_getenv(override_env, inst);
}
#ifndef _WIN32
if (xdg_config_home_secenv_alloc) {
loader_free_getenv(xdg_config_home, inst);
}
if (xdg_config_dirs_secenv_alloc) {
loader_free_getenv(xdg_config_dirs, inst);
}
if (xdg_data_home_secenv_alloc) {
loader_free_getenv(xdg_data_home, inst);
}
if (xdg_data_dirs_secenv_alloc) {
loader_free_getenv(xdg_data_dirs, inst);
}
if (NULL != xdg_data_home) {
loader_free_getenv(xdg_data_home, inst);
}
if (NULL != home) {
loader_free_getenv(home, inst);
}
if (NULL != default_data_home) {
loader_instance_heap_free(inst, default_data_home);
}
if (NULL != default_config_home) {
loader_instance_heap_free(inst, default_config_home);
}
#endif
if (NULL != search_path) {
loader_instance_heap_free(inst, search_path);
}
return vk_result;
}
// Find the Vulkan library manifest files.
//
// This function scans the "location" or "env_override" directories/files
// for a list of JSON manifest files. If env_override is non-NULL
// and has a valid value. Then the location is ignored. Otherwise
// location is used to look for manifest files. The location
// is interpreted as Registry path on Windows and a directory path(s)
// on Linux. "home_location" is an additional directory in the users home
// directory to look at. It is expanded into the dir path
// $XDG_DATA_HOME/home_location or $HOME/.local/share/home_location depending
// on environment variables. This "home_location" is only used on Linux.
//
// \returns
// VKResult
// A string list of manifest files to be opened in out_files param.
// List has a pointer to string for each manifest filename.
// When done using the list in out_files, pointers should be freed.
// Location or override string lists can be either files or directories as
// follows:
// | location | override
// --------------------------------
// Win ICD | files | files
// Win Layer | files | dirs
// Linux ICD | dirs | files
// Linux Layer| dirs | dirs
VkResult loader_get_data_files(const struct loader_instance *inst, enum loader_data_files_type data_file_type,
bool warn_if_not_present, const char *env_override, const char *path_override,
char *registry_location, const char *relative_location, struct loader_data_files *out_files) {
VkResult res = VK_SUCCESS;
bool override_active = false;
// Free and init the out_files information so there's no false data left from uninitialized variables.
if (out_files->filename_list != NULL) {
for (uint32_t i = 0; i < out_files->count; i++) {
if (NULL != out_files->filename_list[i]) {
loader_instance_heap_free(inst, out_files->filename_list[i]);
out_files->filename_list[i] = NULL;
}
}
loader_instance_heap_free(inst, out_files->filename_list);
}
out_files->count = 0;
out_files->alloc_count = 0;
out_files->filename_list = NULL;
res = read_data_files_in_search_paths(inst, data_file_type, env_override, path_override, relative_location, &override_active,
out_files);
if (VK_SUCCESS != res) {
goto out;
}
#ifdef _WIN32
// Read the registry if the override wasn't active.
if (!override_active) {
res = windows_read_data_files_in_registry(inst, data_file_type, warn_if_not_present, registry_location, out_files);
if (VK_SUCCESS != res) {
goto out;
}
}
#endif
out:
if (VK_SUCCESS != res && NULL != out_files->filename_list) {
for (uint32_t remove = 0; remove < out_files->count; remove++) {
loader_instance_heap_free(inst, out_files->filename_list[remove]);
}
loader_instance_heap_free(inst, out_files->filename_list);
out_files->count = 0;
out_files->alloc_count = 0;
out_files->filename_list = NULL;
}
return res;
}
void loader_init_icd_lib_list() {}
void loader_destroy_icd_lib_list() {}
// Try to find the Vulkan ICD driver(s).
//
// This function scans the default system loader path(s) or path
// specified by the \c VK_ICD_FILENAMES environment variable in
// order to find loadable VK ICDs manifest files. From these
// manifest files it finds the ICD libraries.
//
// \returns
// Vulkan result
// (on result == VK_SUCCESS) a list of icds that were discovered
VkResult loader_icd_scan(const struct loader_instance *inst, struct loader_icd_tramp_list *icd_tramp_list) {
char *file_str;
loader_api_version json_file_version = {0, 0, 0};
struct loader_data_files manifest_files;
VkResult res = VK_SUCCESS;
bool lockedMutex = false;
cJSON *json = NULL;
uint32_t num_good_icds = 0;
memset(&manifest_files, 0, sizeof(struct loader_data_files));
res = loader_scanned_icd_init(inst, icd_tramp_list);
if (VK_SUCCESS != res) {
goto out;
}
// Get a list of manifest files for ICDs
res = loader_get_data_files(inst, LOADER_DATA_FILE_MANIFEST_ICD, true, VK_ICD_FILENAMES_ENV_VAR, NULL,
VK_DRIVERS_INFO_REGISTRY_LOC, VK_DRIVERS_INFO_RELATIVE_DIR, &manifest_files);
if (VK_SUCCESS != res || manifest_files.count == 0) {
goto out;
}
loader_platform_thread_lock_mutex(&loader_json_lock);
lockedMutex = true;
for (uint32_t i = 0; i < manifest_files.count; i++) {
file_str = manifest_files.filename_list[i];
if (file_str == NULL) {
continue;
}
VkResult temp_res = loader_get_json(inst, file_str, &json);
if (NULL == json || temp_res != VK_SUCCESS) {
if (NULL != json) {
cJSON_Delete(inst, json);
json = NULL;
}
// If we haven't already found an ICD, copy this result to
// the returned result.
if (num_good_icds == 0) {
res = temp_res;
}
if (temp_res == VK_ERROR_OUT_OF_HOST_MEMORY) {
res = VK_ERROR_OUT_OF_HOST_MEMORY;
break;
} else {
continue;
}
}
res = temp_res;
cJSON *item, *itemICD;
item = cJSON_GetObjectItem(json, "file_format_version");
if (item == NULL) {
if (num_good_icds == 0) {
res = VK_ERROR_INITIALIZATION_FAILED;
}
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_DRIVER_BIT, 0,
"loader_icd_scan: ICD JSON %s does not have a \'file_format_version\' field. Skipping ICD JSON.", file_str);
cJSON_Delete(inst, json);
json = NULL;
continue;
}
char *file_vers = cJSON_Print(inst, item);
if (NULL == file_vers) {
// Only reason the print can fail is if there was an allocation issue
if (num_good_icds == 0) {
res = VK_ERROR_OUT_OF_HOST_MEMORY;
}
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_DRIVER_BIT, 0,
"loader_icd_scan: Failed retrieving ICD JSON %s \'file_format_version\' field. Skipping ICD JSON",
file_str);
cJSON_Delete(inst, json);
json = NULL;
continue;
}
loader_log(inst, VULKAN_LOADER_INFO_BIT, 0, "Found ICD manifest file %s, version %s", file_str, file_vers);
// Get the version of the driver manifest
json_file_version = loader_make_api_version(file_vers);
if (json_file_version.major != 1 || json_file_version.minor != 0 || json_file_version.patch > 1) {
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_DRIVER_BIT, 0,
"loader_icd_scan: Unexpected manifest file version (expected 1.0.0 or 1.0.1), may cause errors");
}
cJSON_Free(inst, file_vers);
itemICD = cJSON_GetObjectItem(json, "ICD");
if (itemICD != NULL) {
item = cJSON_GetObjectItem(itemICD, "library_path");
if (item != NULL) {
char *temp = cJSON_Print(inst, item);
if (!temp || strlen(temp) == 0) {
if (num_good_icds == 0) {
res = VK_ERROR_OUT_OF_HOST_MEMORY;
}
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_DRIVER_BIT, 0,
"loader_icd_scan: Failed retrieving ICD JSON %s \'library_path\' field. Skipping ICD JSON.",
file_str);
cJSON_Free(inst, temp);
cJSON_Delete(inst, json);
json = NULL;
continue;
}
// strip out extra quotes
temp[strlen(temp) - 1] = '\0';
char *library_path = loader_stack_alloc(strlen(temp) + 1);
if (NULL == library_path) {
loader_log(
inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_icd_scan: Failed to allocate space for ICD JSON %s \'library_path\' value. Skipping ICD JSON.",
file_str);
res = VK_ERROR_OUT_OF_HOST_MEMORY;
cJSON_Free(inst, temp);
cJSON_Delete(inst, json);
json = NULL;
goto out;
}
strcpy(library_path, &temp[1]);
cJSON_Free(inst, temp);
if (strlen(library_path) == 0) {
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_DRIVER_BIT, 0,
"loader_icd_scan: ICD JSON %s \'library_path\' field is empty. Skipping ICD JSON.", file_str);
cJSON_Delete(inst, json);
json = NULL;
continue;
}
char fullpath[MAX_STRING_SIZE];
// Print out the paths being searched if debugging is enabled
loader_log(inst, VULKAN_LOADER_DEBUG_BIT, 0, "Searching for ICD drivers named %s", library_path);
if (loader_platform_is_path(library_path)) {
// a relative or absolute path
char *name_copy = loader_stack_alloc(strlen(file_str) + 1);
char *rel_base;
strcpy(name_copy, file_str);
rel_base = loader_platform_dirname(name_copy);
loader_expand_path(library_path, rel_base, sizeof(fullpath), fullpath);
} else {
// a filename which is assumed in a system directory
#if defined(DEFAULT_VK_DRIVERS_PATH)
loader_get_fullpath(library_path, DEFAULT_VK_DRIVERS_PATH, sizeof(fullpath), fullpath);
#else
loader_get_fullpath(library_path, "", sizeof(fullpath), fullpath);
#endif
}
uint32_t vers = 0;
item = cJSON_GetObjectItem(itemICD, "api_version");
if (item != NULL) {
temp = cJSON_Print(inst, item);
if (NULL == temp) {
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_DRIVER_BIT, 0,
"loader_icd_scan: Failed retrieving ICD JSON %s \'api_version\' field. Skipping ICD JSON.",
file_str);
// Only reason the print can fail is if there was an
// allocation issue
if (num_good_icds == 0) {
res = VK_ERROR_OUT_OF_HOST_MEMORY;
}
cJSON_Free(inst, temp);
cJSON_Delete(inst, json);
json = NULL;
continue;
}
vers = loader_make_version(temp);
cJSON_Free(inst, temp);
} else {
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_DRIVER_BIT, 0,
"loader_icd_scan: ICD JSON %s does not have an \'api_version\' field.", file_str);
}
if (VK_API_VERSION_VARIANT(vers) != 0) {
loader_log(
inst, VULKAN_LOADER_INFO_BIT | VULKAN_LOADER_DRIVER_BIT, 0,
"loader_icd_scan: Driver's ICD JSON %s \'api_version\' field contains a non-zero variant value of %d. "
" Skipping ICD JSON.",
file_str, VK_API_VERSION_VARIANT(vers));
cJSON_Delete(inst, json);
json = NULL;
continue;
}
VkResult icd_add_res = VK_SUCCESS;
enum loader_layer_library_status lib_status;
icd_add_res = loader_scanned_icd_add(inst, icd_tramp_list, fullpath, vers, &lib_status);
if (VK_ERROR_OUT_OF_HOST_MEMORY == icd_add_res) {
res = icd_add_res;
goto out;
} else if (VK_SUCCESS != icd_add_res) {
switch (lib_status) {
case LOADER_LAYER_LIB_NOT_LOADED:
case LOADER_LAYER_LIB_ERROR_FAILED_TO_LOAD:
loader_log(inst, VULKAN_LOADER_ERROR_BIT | VULKAN_LOADER_DRIVER_BIT, 0,
"loader_icd_scan: Failed loading library associated with ICD JSON %s.Ignoring this JSON",
fullpath);
break;
case LOADER_LAYER_LIB_ERROR_WRONG_BIT_TYPE: {
loader_log(inst, VULKAN_LOADER_INFO_BIT | VULKAN_LOADER_DRIVER_BIT, 0,
"Requested layer %s was wrong bit-type. Ignoring this JSON", fullpath);
break;
}
case LOADER_LAYER_LIB_SUCCESS_LOADED:
// Shouldn't be able to reach this but if it is, best to report a debug
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_DRIVER_BIT, 0,
"Shouldn't reach this. A valid version of requested ICD %s was loaded but something bad "
"happened afterwards.",
fullpath);
break;
}
cJSON_Delete(inst, json);
json = NULL;
continue;
}
num_good_icds++;
} else {
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_DRIVER_BIT, 0,
"loader_icd_scan: Failed to find \'library_path\' object in ICD JSON file %s. Skipping ICD JSON.",
file_str);
}
} else {
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_DRIVER_BIT, 0,
"loader_icd_scan: Can not find \'ICD\' object in ICD JSON file %s. Skipping ICD JSON", file_str);
}
cJSON_Delete(inst, json);
json = NULL;
}
out:
if (NULL != json) {
cJSON_Delete(inst, json);
}
if (NULL != manifest_files.filename_list) {
for (uint32_t i = 0; i < manifest_files.count; i++) {
if (NULL != manifest_files.filename_list[i]) {
loader_instance_heap_free(inst, manifest_files.filename_list[i]);
}
}
loader_instance_heap_free(inst, manifest_files.filename_list);
}
if (lockedMutex) {
loader_platform_thread_unlock_mutex(&loader_json_lock);
}
return res;
}
void loader_scan_for_layers(struct loader_instance *inst, struct loader_layer_list *instance_layers) {
char *file_str;
struct loader_data_files manifest_files;
cJSON *json;
bool override_layer_valid = false;
char *override_paths = NULL;
uint32_t total_count = 0;
memset(&manifest_files, 0, sizeof(struct loader_data_files));
// Cleanup any previously scanned libraries
loader_delete_layer_list_and_properties(inst, instance_layers);
loader_platform_thread_lock_mutex(&loader_json_lock);
// Get a list of manifest files for any implicit layers
// Pass NULL for environment variable override - implicit layers are not overridden by LAYERS_PATH_ENV
if (VK_SUCCESS != loader_get_data_files(inst, LOADER_DATA_FILE_MANIFEST_LAYER, false, NULL, NULL, VK_ILAYERS_INFO_REGISTRY_LOC,
VK_ILAYERS_INFO_RELATIVE_DIR, &manifest_files)) {
goto out;
}
if (manifest_files.count != 0) {
total_count += manifest_files.count;
for (uint32_t i = 0; i < manifest_files.count; i++) {
file_str = manifest_files.filename_list[i];
if (file_str == NULL) {
continue;
}
// Parse file into JSON struct
VkResult res = loader_get_json(inst, file_str, &json);
if (VK_ERROR_OUT_OF_HOST_MEMORY == res) {
goto out;
} else if (VK_SUCCESS != res || NULL == json) {
continue;
}
VkResult local_res = loader_add_layer_properties(inst, instance_layers, json, true, file_str);
cJSON_Delete(inst, json);
// If the error is anything other than out of memory we still want to try to load the other layers
if (VK_ERROR_OUT_OF_HOST_MEMORY == local_res) {
goto out;
}
}
}
// Remove any extraneous override layers.
remove_all_non_valid_override_layers(inst, instance_layers);
// Check to see if the override layer is present, and use it's override paths.
for (int32_t i = 0; i < (int32_t)instance_layers->count; i++) {
struct loader_layer_properties *prop = &instance_layers->list[i];
if (prop->is_override && loader_implicit_layer_is_enabled(inst, prop) && prop->num_override_paths > 0) {
char *cur_write_ptr = NULL;
size_t override_path_size = 0;
for (uint32_t j = 0; j < prop->num_override_paths; j++) {
override_path_size += determine_data_file_path_size(prop->override_paths[j], 0);
}
override_paths = loader_instance_heap_alloc(inst, override_path_size, VK_SYSTEM_ALLOCATION_SCOPE_COMMAND);
if (override_paths == NULL) {
goto out;
}
cur_write_ptr = &override_paths[0];
for (uint32_t j = 0; j < prop->num_override_paths; j++) {
copy_data_file_path(prop->override_paths[j], NULL, 0, &cur_write_ptr);
}
// Remove the last path separator
--cur_write_ptr;
assert(cur_write_ptr - override_paths < (ptrdiff_t)override_path_size);
*cur_write_ptr = '\0';
loader_log(NULL, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"loader_scan_for_layers: Override layer has override paths set to %s", override_paths);
}
}
// Get a list of manifest files for explicit layers
if (VK_SUCCESS != loader_get_data_files(inst, LOADER_DATA_FILE_MANIFEST_LAYER, true, VK_LAYER_PATH_ENV_VAR, override_paths,
VK_ELAYERS_INFO_REGISTRY_LOC, VK_ELAYERS_INFO_RELATIVE_DIR, &manifest_files)) {
goto out;
}
// Make sure we have at least one layer, if not, go ahead and return
if (manifest_files.count == 0 && total_count == 0) {
goto out;
} else {
for (uint32_t i = 0; i < manifest_files.count; i++) {
file_str = manifest_files.filename_list[i];
if (file_str == NULL) {
continue;
}
// Parse file into JSON struct
VkResult res = loader_get_json(inst, file_str, &json);
if (VK_ERROR_OUT_OF_HOST_MEMORY == res) {
goto out;
} else if (VK_SUCCESS != res || NULL == json) {
continue;
}
VkResult local_res = loader_add_layer_properties(inst, instance_layers, json, false, file_str);
cJSON_Delete(inst, json);
// If the error is anything other than out of memory we still want to try to load the other layers
if (VK_ERROR_OUT_OF_HOST_MEMORY == local_res) {
goto out;
}
}
}
// Verify any meta-layers in the list are valid and all the component layers are
// actually present in the available layer list
verify_all_meta_layers(inst, instance_layers, &override_layer_valid);
if (override_layer_valid) {
loader_remove_layers_in_blacklist(inst, instance_layers);
if (NULL != inst) {
inst->override_layer_present = true;
}
}
out:
if (NULL != override_paths) {
loader_instance_heap_free(inst, override_paths);
}
if (NULL != manifest_files.filename_list) {
for (uint32_t i = 0; i < manifest_files.count; i++) {
if (NULL != manifest_files.filename_list[i]) {
loader_instance_heap_free(inst, manifest_files.filename_list[i]);
}
}
loader_instance_heap_free(inst, manifest_files.filename_list);
}
loader_platform_thread_unlock_mutex(&loader_json_lock);
}
void loader_scan_for_implicit_layers(struct loader_instance *inst, struct loader_layer_list *instance_layers) {
char *file_str;
struct loader_data_files manifest_files;
cJSON *json;
bool override_layer_valid = false;
char *override_paths = NULL;
bool implicit_metalayer_present = false;
bool have_json_lock = false;
// Before we begin anything, init manifest_files to avoid a delete of garbage memory if
// a failure occurs before allocating the manifest filename_list.
memset(&manifest_files, 0, sizeof(struct loader_data_files));
// Pass NULL for environment variable override - implicit layers are not overridden by LAYERS_PATH_ENV
VkResult res = loader_get_data_files(inst, LOADER_DATA_FILE_MANIFEST_LAYER, false, NULL, NULL, VK_ILAYERS_INFO_REGISTRY_LOC,
VK_ILAYERS_INFO_RELATIVE_DIR, &manifest_files);
if (VK_SUCCESS != res || manifest_files.count == 0) {
goto out;
}
// Cleanup any previously scanned libraries
loader_delete_layer_list_and_properties(inst, instance_layers);
loader_platform_thread_lock_mutex(&loader_json_lock);
have_json_lock = true;
for (uint32_t i = 0; i < manifest_files.count; i++) {
file_str = manifest_files.filename_list[i];
if (file_str == NULL) {
continue;
}
// parse file into JSON struct
res = loader_get_json(inst, file_str, &json);
if (VK_ERROR_OUT_OF_HOST_MEMORY == res) {
goto out;
} else if (VK_SUCCESS != res || NULL == json) {
continue;
}
res = loader_add_layer_properties(inst, instance_layers, json, true, file_str);
loader_instance_heap_free(inst, file_str);
manifest_files.filename_list[i] = NULL;
cJSON_Delete(inst, json);
if (VK_ERROR_OUT_OF_HOST_MEMORY == res) {
goto out;
}
}
// Remove any extraneous override layers.
remove_all_non_valid_override_layers(inst, instance_layers);
// Check to see if either the override layer is present, or another implicit meta-layer.
// Each of these may require explicit layers to be enabled at this time.
for (int32_t i = 0; i < (int32_t)instance_layers->count; i++) {
struct loader_layer_properties *prop = &instance_layers->list[i];
if (prop->is_override && loader_implicit_layer_is_enabled(inst, prop)) {
override_layer_valid = true;
if (prop->num_override_paths > 0) {
char *cur_write_ptr = NULL;
size_t override_path_size = 0;
for (uint32_t j = 0; j < prop->num_override_paths; j++) {
override_path_size += determine_data_file_path_size(prop->override_paths[j], 0);
}
override_paths = loader_instance_heap_alloc(inst, override_path_size, VK_SYSTEM_ALLOCATION_SCOPE_COMMAND);
if (override_paths == NULL) {
goto out;
}
cur_write_ptr = &override_paths[0];
for (uint32_t j = 0; j < prop->num_override_paths; j++) {
copy_data_file_path(prop->override_paths[j], NULL, 0, &cur_write_ptr);
}
// Remove the last path separator
--cur_write_ptr;
assert(cur_write_ptr - override_paths < (ptrdiff_t)override_path_size);
*cur_write_ptr = '\0';
loader_log(NULL, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"loader_scan_for_implicit_layers: Override layer has override paths set to %s", override_paths);
}
} else if (!prop->is_override && prop->type_flags & VK_LAYER_TYPE_FLAG_META_LAYER) {
implicit_metalayer_present = true;
}
}
// If either the override layer or an implicit meta-layer are present, we need to add
// explicit layer info as well. Not to worry, though, all explicit layers not included
// in the override layer will be removed below in loader_remove_layers_in_blacklist().
if (override_layer_valid || implicit_metalayer_present) {
if (VK_SUCCESS != loader_get_data_files(inst, LOADER_DATA_FILE_MANIFEST_LAYER, true, VK_LAYER_PATH_ENV_VAR, override_paths,
VK_ELAYERS_INFO_REGISTRY_LOC, VK_ELAYERS_INFO_RELATIVE_DIR, &manifest_files)) {
goto out;
}
for (uint32_t i = 0; i < manifest_files.count; i++) {
file_str = manifest_files.filename_list[i];
if (file_str == NULL) {
continue;
}
// parse file into JSON struct
res = loader_get_json(inst, file_str, &json);
if (VK_ERROR_OUT_OF_HOST_MEMORY == res) {
goto out;
} else if (VK_SUCCESS != res || NULL == json) {
continue;
}
res = loader_add_layer_properties(inst, instance_layers, json, false, file_str);
loader_instance_heap_free(inst, file_str);
manifest_files.filename_list[i] = NULL;
cJSON_Delete(inst, json);
if (VK_ERROR_OUT_OF_HOST_MEMORY == res) {
goto out;
}
}
}
// Verify any meta-layers in the list are valid and all the component layers are
// actually present in the available layer list
verify_all_meta_layers(inst, instance_layers, &override_layer_valid);
if (override_layer_valid || implicit_metalayer_present) {
loader_remove_layers_not_in_implicit_meta_layers(inst, instance_layers);
if (override_layer_valid && inst != NULL) {
inst->override_layer_present = true;
}
}
out:
if (NULL != override_paths) {
loader_instance_heap_free(inst, override_paths);
}
for (uint32_t i = 0; i < manifest_files.count; i++) {
if (NULL != manifest_files.filename_list[i]) {
loader_instance_heap_free(inst, manifest_files.filename_list[i]);
}
}
if (NULL != manifest_files.filename_list) {
loader_instance_heap_free(inst, manifest_files.filename_list);
}
if (have_json_lock) {
loader_platform_thread_unlock_mutex(&loader_json_lock);
}
}
static VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL loader_gpdpa_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 (disp_table == NULL) return NULL;
bool found_name;
addr = loader_lookup_instance_dispatch_table(disp_table, pName, &found_name);
if (found_name) {
return addr;
}
if (loader_phys_dev_ext_gpa(loader_get_instance(inst), pName, true, NULL, &addr)) return addr;
// Don't call down the chain, this would be an infinite loop
loader_log(NULL, VULKAN_LOADER_DEBUG_BIT, 0, "loader_gpdpa_instance_internal() unrecognized name %s", pName);
return NULL;
}
static VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL loader_gpdpa_instance_terminator(VkInstance inst, const char *pName) {
// inst is not wrapped
if (inst == VK_NULL_HANDLE) {
return NULL;
}
VkLayerInstanceDispatchTable *disp_table = *(VkLayerInstanceDispatchTable **)inst;
void *addr;
if (disp_table == NULL) return NULL;
bool found_name;
addr = loader_lookup_instance_dispatch_table(disp_table, pName, &found_name);
if (found_name) {
return addr;
}
// Get the terminator, but don't perform checking since it should already
// have been setup if we get here.
if (loader_phys_dev_ext_gpa(loader_get_instance(inst), pName, false, NULL, &addr)) {
return addr;
}
// Don't call down the chain, this would be an infinite loop
loader_log(NULL, VULKAN_LOADER_DEBUG_BIT, 0, "loader_gpdpa_instance_terminator() unrecognized name %s", pName);
return NULL;
}
static VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL loader_gpa_instance_internal(VkInstance inst, const char *pName) {
if (!strcmp(pName, "vkGetInstanceProcAddr")) {
return (PFN_vkVoidFunction)loader_gpa_instance_internal;
}
if (!strcmp(pName, "vk_layerGetPhysicalDeviceProcAddr")) {
return (PFN_vkVoidFunction)loader_gpdpa_instance_terminator;
}
if (!strcmp(pName, "vkCreateInstance")) {
return (PFN_vkVoidFunction)terminator_CreateInstance;
}
if (!strcmp(pName, "vkCreateDevice")) {
return (PFN_vkVoidFunction)terminator_CreateDevice;
}
// The VK_EXT_debug_utils functions need a special case here so the terminators can still be found from vkGetInstanceProcAddr
if (!strcmp(pName, "vkSetDebugUtilsObjectNameEXT")) {
return (PFN_vkVoidFunction)terminator_SetDebugUtilsObjectNameEXT;
}
if (!strcmp(pName, "vkSetDebugUtilsObjectTagEXT")) {
return (PFN_vkVoidFunction)terminator_SetDebugUtilsObjectTagEXT;
}
if (!strcmp(pName, "vkQueueBeginDebugUtilsLabelEXT")) {
return (PFN_vkVoidFunction)terminator_QueueBeginDebugUtilsLabelEXT;
}
if (!strcmp(pName, "vkQueueEndDebugUtilsLabelEXT")) {
return (PFN_vkVoidFunction)terminator_QueueEndDebugUtilsLabelEXT;
}
if (!strcmp(pName, "vkQueueInsertDebugUtilsLabelEXT")) {
return (PFN_vkVoidFunction)terminator_QueueInsertDebugUtilsLabelEXT;
}
if (!strcmp(pName, "vkCmdBeginDebugUtilsLabelEXT")) {
return (PFN_vkVoidFunction)terminator_CmdBeginDebugUtilsLabelEXT;
}
if (!strcmp(pName, "vkCmdEndDebugUtilsLabelEXT")) {
return (PFN_vkVoidFunction)terminator_CmdEndDebugUtilsLabelEXT;
}
if (!strcmp(pName, "vkCmdInsertDebugUtilsLabelEXT")) {
return (PFN_vkVoidFunction)terminator_CmdInsertDebugUtilsLabelEXT;
}
// inst is not wrapped
if (inst == VK_NULL_HANDLE) {
return NULL;
}
VkLayerInstanceDispatchTable *disp_table = *(VkLayerInstanceDispatchTable **)inst;
void *addr;
if (disp_table == NULL) return NULL;
bool found_name;
addr = loader_lookup_instance_dispatch_table(disp_table, pName, &found_name);
if (found_name) {
return addr;
}
// Don't call down the chain, this would be an infinite loop
loader_log(NULL, VULKAN_LOADER_DEBUG_BIT, 0, "loader_gpa_instance_internal() unrecognized name %s", pName);
return NULL;
}
VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL loader_gpa_device_internal(VkDevice device, const char *pName) {
struct loader_device *dev;
struct loader_icd_term *icd_term = loader_get_icd_and_device(device, &dev, NULL);
// Return this function if a layer above here is asking for the vkGetDeviceProcAddr.
// This is so we can properly intercept any device commands needing a terminator.
if (!strcmp(pName, "vkGetDeviceProcAddr")) {
return (PFN_vkVoidFunction)loader_gpa_device_internal;
}
// NOTE: Device Funcs needing Trampoline/Terminator.
// Overrides for device functions needing a trampoline and
// a terminator because certain device entry-points still need to go
// through a terminator before hitting the ICD. This could be for
// several reasons, but the main one is currently unwrapping an
// object before passing the appropriate info along to the ICD.
// This is why we also have to override the direct ICD call to
// vkGetDeviceProcAddr to intercept those calls.
PFN_vkVoidFunction addr = get_extension_device_proc_terminator(dev, pName);
if (NULL != addr) {
return addr;
}
return icd_term->dispatch.GetDeviceProcAddr(device, pName);
}
// Initialize device_ext dispatch table entry as follows:
// If dev == NULL find all logical devices created within this instance and
// init the entry (given by idx) in the ext dispatch table.
// If dev != NULL only initialize the entry in the given dev's dispatch table.
// The initialization value is gotten by calling down the device chain with
// GDPA.
// If GDPA returns NULL then don't initialize the dispatch table entry.
static void loader_init_dispatch_dev_ext_entry(struct loader_instance *inst, struct loader_device *dev, uint32_t idx,
const char *funcName)
{
void *gdpa_value;
if (dev != NULL) {
gdpa_value = dev->loader_dispatch.core_dispatch.GetDeviceProcAddr(dev->chain_device, funcName);
if (gdpa_value != NULL) dev->loader_dispatch.ext_dispatch.dev_ext[idx] = (PFN_vkDevExt)gdpa_value;
} else {
for (struct loader_icd_term *icd_term = inst->icd_terms; icd_term != NULL; icd_term = icd_term->next) {
struct loader_device *ldev = icd_term->logical_device_list;
while (ldev) {
gdpa_value = ldev->loader_dispatch.core_dispatch.GetDeviceProcAddr(ldev->chain_device, funcName);
if (gdpa_value != NULL) ldev->loader_dispatch.ext_dispatch.dev_ext[idx] = (PFN_vkDevExt)gdpa_value;
ldev = ldev->next;
}
}
}
}
// Find all dev extension in the hash table and initialize the dispatch table
// for dev for each of those extension entrypoints found in hash table.
void loader_init_dispatch_dev_ext(struct loader_instance *inst, struct loader_device *dev) {
for (uint32_t i = 0; i < MAX_NUM_UNKNOWN_EXTS; i++) {
if (inst->dev_ext_disp_hash[i].func_name != NULL)
loader_init_dispatch_dev_ext_entry(inst, dev, i, inst->dev_ext_disp_hash[i].func_name);
}
}
static bool loader_check_icds_for_dev_ext_address(struct loader_instance *inst, const char *funcName) {
struct loader_icd_term *icd_term;
icd_term = inst->icd_terms;
while (NULL != icd_term) {
if (icd_term->scanned_icd->GetInstanceProcAddr(icd_term->instance, funcName))
// this icd supports funcName
return true;
icd_term = icd_term->next;
}
return false;
}
static bool loader_check_layer_list_for_dev_ext_address(const struct loader_layer_list *const layers, const char *funcName) {
// Iterate over the layers.
for (uint32_t layer = 0; layer < layers->count; ++layer) {
// Iterate over the extensions.
const struct loader_device_extension_list *const extensions = &(layers->list[layer].device_extension_list);
for (uint32_t extension = 0; extension < extensions->count; ++extension) {
// Iterate over the entry points.
const struct loader_dev_ext_props *const property = &(extensions->list[extension]);
for (uint32_t entry = 0; entry < property->entrypoint_count; ++entry) {
if (strcmp(property->entrypoints[entry], funcName) == 0) {
return true;
}
}
}
}
return false;
}
static void loader_free_dev_ext_table(struct loader_instance *inst) {
for (uint32_t i = 0; i < MAX_NUM_UNKNOWN_EXTS; i++) {
loader_instance_heap_free(inst, inst->dev_ext_disp_hash[i].func_name);
loader_instance_heap_free(inst, inst->dev_ext_disp_hash[i].list.index);
}
memset(inst->dev_ext_disp_hash, 0, sizeof(inst->dev_ext_disp_hash));
}
static bool loader_add_dev_ext_table(struct loader_instance *inst, uint32_t *ptr_idx, const char *funcName) {
uint32_t i;
uint32_t idx = *ptr_idx;
struct loader_dispatch_hash_list *list = &inst->dev_ext_disp_hash[idx].list;
if (!inst->dev_ext_disp_hash[idx].func_name) {
// no entry here at this idx, so use it
assert(list->capacity == 0);
inst->dev_ext_disp_hash[idx].func_name =
(char *)loader_instance_heap_alloc(inst, strlen(funcName) + 1, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (inst->dev_ext_disp_hash[idx].func_name == NULL) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_add_dev_ext_table: Failed to allocate memory for func_name %s",
funcName);
return false;
}
strncpy(inst->dev_ext_disp_hash[idx].func_name, funcName, strlen(funcName) + 1);
return true;
}
// check for enough capacity
if (list->capacity == 0) {
list->index = loader_instance_heap_alloc(inst, 8 * sizeof(*(list->index)), VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (list->index == NULL) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_add_dev_ext_table: Failed to allocate memory for list index of function %s", funcName);
return false;
}
list->capacity = 8 * sizeof(*(list->index));
} else if (list->capacity < (list->count + 1) * sizeof(*(list->index))) {
void *new_ptr = loader_instance_heap_realloc(inst, list->index, list->capacity, list->capacity * 2,
VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (NULL == new_ptr) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_add_dev_ext_table: Failed to reallocate memory for list index of function %s", funcName);
return false;
}
list->index = new_ptr;
list->capacity *= 2;
}
// find an unused index in the hash table and use it
i = (idx + 1) % MAX_NUM_UNKNOWN_EXTS;
do {
if (!inst->dev_ext_disp_hash[i].func_name) {
assert(inst->dev_ext_disp_hash[i].list.capacity == 0);
inst->dev_ext_disp_hash[i].func_name =
(char *)loader_instance_heap_alloc(inst, strlen(funcName) + 1, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (inst->dev_ext_disp_hash[i].func_name == NULL) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_add_dev_ext_table: Failed to allocate memory for func_name %s",
funcName);
return false;
}
strncpy(inst->dev_ext_disp_hash[i].func_name, funcName, strlen(funcName) + 1);
list->index[list->count] = i;
list->count++;
*ptr_idx = i;
return true;
}
i = (i + 1) % MAX_NUM_UNKNOWN_EXTS;
} while (i != idx);
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_add_dev_ext_table: Could not insert into hash table; is it full?");
return false;
}
static bool loader_name_in_dev_ext_table(struct loader_instance *inst, uint32_t *idx, const char *funcName) {
uint32_t alt_idx;
if (inst->dev_ext_disp_hash[*idx].func_name && !strcmp(inst->dev_ext_disp_hash[*idx].func_name, funcName)) return true;
// funcName wasn't at the primary spot in the hash table
// search the list of secondary locations (shallow search, not deep search)
for (uint32_t i = 0; i < inst->dev_ext_disp_hash[*idx].list.count; i++) {
alt_idx = inst->dev_ext_disp_hash[*idx].list.index[i];
if (inst->dev_ext_disp_hash[*idx].func_name && !strcmp(inst->dev_ext_disp_hash[*idx].func_name, funcName)) {
*idx = alt_idx;
return true;
}
}
return false;
}
// This function returns generic trampoline code address for unknown entry
// points.
// Presumably, these unknown entry points (as given by funcName) are device
// extension entrypoints. A hash table is used to keep a list of unknown entry
// points and their mapping to the device extension dispatch table
// (struct loader_dev_ext_dispatch_table).
// \returns
// For a given entry point string (funcName), if an existing mapping is found
// the
// trampoline address for that mapping is returned. Otherwise, this unknown
// entry point
// has not been seen yet. Next check if a layer or ICD supports it. If so then
// a
// new entry in the hash table is initialized and that trampoline address for
// the new entry is returned. Null is returned if the hash table is full or
// if no discovered layer or ICD returns a non-NULL GetProcAddr for it.
void *loader_dev_ext_gpa(struct loader_instance *inst, const char *funcName) {
uint32_t idx;
uint32_t seed = 0;
idx = murmurhash(funcName, strlen(funcName), seed) % MAX_NUM_UNKNOWN_EXTS;
if (loader_name_in_dev_ext_table(inst, &idx, funcName))
// found funcName already in hash
return loader_get_dev_ext_trampoline(idx);
// Check if funcName is supported in either ICDs or a layer library
if (!loader_check_icds_for_dev_ext_address(inst, funcName) &&
!loader_check_layer_list_for_dev_ext_address(&inst->app_activated_layer_list, funcName)) {
// if support found in layers continue on
return NULL;
}
if (loader_add_dev_ext_table(inst, &idx, funcName)) {
// successfully added new table entry
// init any dev dispatch table entries as needed
loader_init_dispatch_dev_ext_entry(inst, NULL, idx, funcName);
return loader_get_dev_ext_trampoline(idx);
}
return NULL;
}
static bool loader_check_icds_for_phys_dev_ext_address(struct loader_instance *inst, const char *funcName) {
struct loader_icd_term *icd_term;
icd_term = inst->icd_terms;
while (NULL != icd_term) {
if (icd_term->scanned_icd->interface_version >= MIN_PHYS_DEV_EXTENSION_ICD_INTERFACE_VERSION &&
icd_term->scanned_icd->GetPhysicalDeviceProcAddr(icd_term->instance, funcName))
// this icd supports funcName
return true;
icd_term = icd_term->next;
}
return false;
}
static bool loader_check_layer_list_for_phys_dev_ext_address(struct loader_instance *inst, const char *funcName) {
struct loader_layer_properties *layer_prop_list = inst->expanded_activated_layer_list.list;
for (uint32_t layer = 0; layer < inst->expanded_activated_layer_list.count; ++layer) {
// If this layer supports the vk_layerGetPhysicalDeviceProcAddr, then call
// it and see if it returns a valid pointer for this function name.
if (layer_prop_list[layer].interface_version > 1) {
const struct loader_layer_functions *const functions = &(layer_prop_list[layer].functions);
if (NULL != functions->get_physical_device_proc_addr &&
NULL != functions->get_physical_device_proc_addr((VkInstance)inst->instance, funcName)) {
return true;
}
}
}
return false;
}
static void loader_free_phys_dev_ext_table(struct loader_instance *inst) {
for (uint32_t i = 0; i < MAX_NUM_UNKNOWN_EXTS; i++) {
loader_instance_heap_free(inst, inst->phys_dev_ext_disp_hash[i].func_name);
loader_instance_heap_free(inst, inst->phys_dev_ext_disp_hash[i].list.index);
}
memset(inst->phys_dev_ext_disp_hash, 0, sizeof(inst->phys_dev_ext_disp_hash));
}
static bool loader_add_phys_dev_ext_table(struct loader_instance *inst, uint32_t *ptr_idx, const char *funcName) {
uint32_t i;
uint32_t idx = *ptr_idx;
struct loader_dispatch_hash_list *list = &inst->phys_dev_ext_disp_hash[idx].list;
if (!inst->phys_dev_ext_disp_hash[idx].func_name) {
// no entry here at this idx, so use it
assert(list->capacity == 0);
inst->phys_dev_ext_disp_hash[idx].func_name =
(char *)loader_instance_heap_alloc(inst, strlen(funcName) + 1, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (inst->phys_dev_ext_disp_hash[idx].func_name == NULL) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_add_phys_dev_ext_table() can't allocate memory for func_name");
return false;
}
strncpy(inst->phys_dev_ext_disp_hash[idx].func_name, funcName, strlen(funcName) + 1);
return true;
}
// check for enough capacity
if (list->capacity == 0) {
list->index = loader_instance_heap_alloc(inst, 8 * sizeof(*(list->index)), VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (list->index == NULL) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_add_phys_dev_ext_table() can't allocate list memory");
return false;
}
list->capacity = 8 * sizeof(*(list->index));
} else if (list->capacity < (list->count + 1) * sizeof(*(list->index))) {
void *new_ptr = loader_instance_heap_realloc(inst, list->index, list->capacity, list->capacity * 2,
VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (NULL == new_ptr) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_add_phys_dev_ext_table() can't reallocate list memory");
return false;
}
list->index = new_ptr;
list->capacity *= 2;
}
// find an unused index in the hash table and use it
i = (idx + 1) % MAX_NUM_UNKNOWN_EXTS;
do {
if (!inst->phys_dev_ext_disp_hash[i].func_name) {
assert(inst->phys_dev_ext_disp_hash[i].list.capacity == 0);
inst->phys_dev_ext_disp_hash[i].func_name =
(char *)loader_instance_heap_alloc(inst, strlen(funcName) + 1, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (inst->phys_dev_ext_disp_hash[i].func_name == NULL) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_add_phys_dev_ext_table() can't reallocate func_name memory");
return false;
}
strncpy(inst->phys_dev_ext_disp_hash[i].func_name, funcName, strlen(funcName) + 1);
list->index[list->count] = i;
list->count++;
*ptr_idx = i;
return true;
}
i = (i + 1) % MAX_NUM_UNKNOWN_EXTS;
} while (i != idx);
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_add_phys_dev_ext_table() couldn't insert into hash table; is it full?");
return false;
}
static bool loader_name_in_phys_dev_ext_table(struct loader_instance *inst, uint32_t *idx, const char *funcName) {
uint32_t alt_idx;
if (inst->phys_dev_ext_disp_hash[*idx].func_name && !strcmp(inst->phys_dev_ext_disp_hash[*idx].func_name, funcName))
return true;
// funcName wasn't at the primary spot in the hash table
// search the list of secondary locations (shallow search, not deep search)
for (uint32_t i = 0; i < inst->phys_dev_ext_disp_hash[*idx].list.count; i++) {
alt_idx = inst->phys_dev_ext_disp_hash[*idx].list.index[i];
if (inst->phys_dev_ext_disp_hash[*idx].func_name && !strcmp(inst->phys_dev_ext_disp_hash[*idx].func_name, funcName)) {
*idx = alt_idx;
return true;
}
}
return false;
}
// This function returns a generic trampoline and/or terminator function
// address for any unknown physical device extension commands. A hash
// table is used to keep a list of unknown entry points and their
// mapping to the physical device extension dispatch table (struct
// loader_phys_dev_ext_dispatch_table).
// For a given entry point string (funcName), if an existing mapping is
// found, then the trampoline address for that mapping is returned in
// tramp_addr (if it is not NULL) and the terminator address for that
// mapping is returned in term_addr (if it is not NULL). Otherwise,
// this unknown entry point has not been seen yet.
// If it has not been seen before, and perform_checking is 'true',
// check if a layer or and ICD supports it. If so then a new entry in
// the hash table is initialized and the trampoline and/or terminator
// addresses are returned.
// Null is returned if the hash table is full or if no discovered layer or
// ICD returns a non-NULL GetProcAddr for it.
bool loader_phys_dev_ext_gpa(struct loader_instance *inst, const char *funcName, bool perform_checking, void **tramp_addr,
void **term_addr) {
uint32_t idx;
uint32_t seed = 0;
bool success = false;
if (inst == NULL) {
goto out;
}
if (NULL != tramp_addr) {
*tramp_addr = NULL;
}
if (NULL != term_addr) {
*term_addr = NULL;
}
// We should always check to see if any ICD supports it.
if (!loader_check_icds_for_phys_dev_ext_address(inst, funcName)) {
// If we're not checking layers, or we are and it's not in a layer, just
// return
if (!perform_checking || !loader_check_layer_list_for_phys_dev_ext_address(inst, funcName)) {
goto out;
}
}
idx = murmurhash(funcName, strlen(funcName), seed) % MAX_NUM_UNKNOWN_EXTS;
if (perform_checking && !loader_name_in_phys_dev_ext_table(inst, &idx, funcName)) {
uint32_t i;
loader_log(inst, VULKAN_LOADER_DEBUG_BIT, 0,
"loader_phys_dev_ext_gpa: Found unknown physical function %s, using index %u in table", funcName, idx);
// Only need to add first one to get index in Instance. Others will use
// the same index.
if (!loader_add_phys_dev_ext_table(inst, &idx, funcName)) {
// couldn't perform the above function due to insufficient memory available
goto out;
}
// Setup the ICD function pointers
struct loader_icd_term *icd_term = inst->icd_terms;
while (NULL != icd_term) {
if (MIN_PHYS_DEV_EXTENSION_ICD_INTERFACE_VERSION <= icd_term->scanned_icd->interface_version &&
NULL != icd_term->scanned_icd->GetPhysicalDeviceProcAddr) {
icd_term->phys_dev_ext[idx] =
(PFN_PhysDevExt)icd_term->scanned_icd->GetPhysicalDeviceProcAddr(icd_term->instance, funcName);
// Make sure we set the instance dispatch to point to the
// loader's terminator now since we can at least handle it
// in one ICD.
inst->disp->phys_dev_ext[idx] = loader_get_phys_dev_ext_termin(idx);
loader_log(inst, VULKAN_LOADER_DEBUG_BIT, 0, "loader_phys_dev_ext_gpa: Driver %s returned ptr %p for %s",
icd_term->scanned_icd->lib_name, inst->disp->phys_dev_ext[idx], funcName);
} else {
icd_term->phys_dev_ext[idx] = NULL;
}
icd_term = icd_term->next;
}
// Now, search for the first layer attached and query using it to get
// the first entry point.
for (i = 0; i < inst->expanded_activated_layer_list.count; i++) {
struct loader_layer_properties *layer_prop = &inst->expanded_activated_layer_list.list[i];
if (layer_prop->interface_version > 1 && NULL != layer_prop->functions.get_physical_device_proc_addr) {
inst->disp->phys_dev_ext[idx] =
(PFN_PhysDevExt)layer_prop->functions.get_physical_device_proc_addr((VkInstance)inst->instance, funcName);
if (NULL != inst->disp->phys_dev_ext[idx]) {
loader_log(inst, VULKAN_LOADER_DEBUG_BIT, 0, "loader_phys_dev_ext_gpa: Layer %s returned ptr %p for %s",
layer_prop->info.layerName, inst->disp->phys_dev_ext[idx], funcName);
break;
}
}
}
}
if (NULL != tramp_addr) {
*tramp_addr = loader_get_phys_dev_ext_tramp(idx);
}
if (NULL != term_addr) {
*term_addr = loader_get_phys_dev_ext_termin(idx);
}
success = true;
out:
return success;
}
struct loader_instance *loader_get_instance(const VkInstance instance) {
// look up the loader_instance in our list by comparing dispatch tables, as
// there is no guarantee the instance is still a loader_instance* after any
// layers which wrap the instance object.
const VkLayerInstanceDispatchTable *disp;
struct loader_instance *ptr_instance = (struct loader_instance *)instance;
if (VK_NULL_HANDLE == instance || LOADER_MAGIC_NUMBER != ptr_instance->magic) {
return NULL;
} else {
disp = loader_get_instance_layer_dispatch(instance);
for (struct loader_instance *inst = loader.instances; inst; inst = inst->next) {
if (&inst->disp->layer_inst_disp == disp) {
ptr_instance = inst;
break;
}
}
}
return ptr_instance;
}
static loader_platform_dl_handle loader_open_layer_file(const struct loader_instance *inst, const char *chain_type,
struct loader_layer_properties *prop) {
if ((prop->lib_handle = loader_platform_open_library(prop->lib_name)) == NULL) {
loader_handle_load_library_error(inst, prop->lib_name, &prop->lib_status);
} else {
prop->lib_status = LOADER_LAYER_LIB_SUCCESS_LOADED;
loader_log(inst, VULKAN_LOADER_DEBUG_BIT | VULKAN_LOADER_LAYER_BIT, 0, "Loading layer library %s", prop->lib_name);
}
return prop->lib_handle;
}
static void loader_close_layer_file(const struct loader_instance *inst, struct loader_layer_properties *prop) {
if (prop->lib_handle) {
loader_platform_close_library(prop->lib_handle);
loader_log(inst, VULKAN_LOADER_DEBUG_BIT | VULKAN_LOADER_LAYER_BIT, 0, "Unloading layer library %s", prop->lib_name);
prop->lib_handle = NULL;
}
}
void loader_deactivate_layers(const struct loader_instance *instance, struct loader_device *device,
struct loader_layer_list *list) {
// Delete instance list of enabled layers and close any layer libraries
for (uint32_t i = 0; i < list->count; i++) {
struct loader_layer_properties *layer_prop = &list->list[i];
loader_close_layer_file(instance, layer_prop);
}
loader_destroy_layer_list(instance, device, list);
}
// Go through the search_list and find any layers which match type. If layer
// type match is found in then add it to ext_list.
static void loader_add_implicit_layers(const struct loader_instance *inst, struct loader_layer_list *target_list,
struct loader_layer_list *expanded_target_list,
const struct loader_layer_list *source_list) {
for (uint32_t src_layer = 0; src_layer < source_list->count; src_layer++) {
const struct loader_layer_properties *prop = &source_list->list[src_layer];
if (0 == (prop->type_flags & VK_LAYER_TYPE_FLAG_EXPLICIT_LAYER)) {
loader_add_implicit_layer(inst, prop, target_list, expanded_target_list, source_list);
}
}
}
// Get the layer name(s) from the env_name environment variable. If layer is found in
// search_list then add it to layer_list. But only add it to layer_list if type_flags matches.
static VkResult loader_add_environment_layers(struct loader_instance *inst, const enum layer_type_flags type_flags,
const char *env_name, struct loader_layer_list *target_list,
struct loader_layer_list *expanded_target_list,
const struct loader_layer_list *source_list) {
VkResult res = VK_SUCCESS;
char *next, *name;
char *layer_env = loader_getenv(env_name, inst);
if (layer_env == NULL) {
goto out;
}
name = loader_stack_alloc(strlen(layer_env) + 1);
if (name == NULL) {
goto out;
}
strcpy(name, layer_env);
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"loader_add_environment_layers: Env Var %s defined and adding layers %s", env_name, name);
while (name && *name) {
next = loader_get_next_path(name);
res = loader_add_layer_name_to_list(inst, name, type_flags, source_list, target_list, expanded_target_list);
if (res != VK_SUCCESS) {
goto out;
}
name = next;
}
out:
if (layer_env != NULL) {
loader_free_getenv(layer_env, inst);
}
return res;
}
VkResult loader_enable_instance_layers(struct loader_instance *inst, const VkInstanceCreateInfo *pCreateInfo,
const struct loader_layer_list *instance_layers) {
VkResult err = VK_SUCCESS;
uint16_t layer_api_major_version;
uint16_t layer_api_minor_version;
uint32_t i;
struct loader_layer_properties *prop;
assert(inst && "Cannot have null instance");
if (!loader_init_layer_list(inst, &inst->app_activated_layer_list)) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_enable_instance_layers: Failed to initialize application version of the layer list");
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
if (!loader_init_layer_list(inst, &inst->expanded_activated_layer_list)) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_enable_instance_layers: Failed to initialize expanded version of the layer list");
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
// Add any implicit layers first
loader_add_implicit_layers(inst, &inst->app_activated_layer_list, &inst->expanded_activated_layer_list, instance_layers);
// Add any layers specified via environment variable next
err = loader_add_environment_layers(inst, VK_LAYER_TYPE_FLAG_EXPLICIT_LAYER, "VK_INSTANCE_LAYERS",
&inst->app_activated_layer_list, &inst->expanded_activated_layer_list, instance_layers);
if (err != VK_SUCCESS) {
goto out;
}
// Add layers specified by the application
err = loader_add_layer_names_to_list(inst, &inst->app_activated_layer_list, &inst->expanded_activated_layer_list,
pCreateInfo->enabledLayerCount, pCreateInfo->ppEnabledLayerNames, instance_layers);
for (i = 0; i < inst->expanded_activated_layer_list.count; i++) {
// Verify that the layer api version is at least that of the application's request, if not, throw a warning since
// undefined behavior could occur.
prop = inst->expanded_activated_layer_list.list + i;
layer_api_major_version = VK_API_VERSION_MAJOR(prop->info.specVersion);
layer_api_minor_version = VK_API_VERSION_MINOR(prop->info.specVersion);
if (inst->app_api_major_version > layer_api_major_version ||
(inst->app_api_major_version == layer_api_major_version && inst->app_api_minor_version > layer_api_minor_version)) {
loader_log(inst, VULKAN_LOADER_WARN_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"loader_add_to_layer_list: Explicit layer %s is using an old API version %" PRIu16 ".%" PRIu16
" versus application requested %" PRIu16 ".%" PRIu16,
prop->info.layerName, layer_api_major_version, layer_api_minor_version, inst->app_api_major_version,
inst->app_api_minor_version);
}
}
out:
return err;
}
// Determine the layer interface version to use.
bool loader_get_layer_interface_version(PFN_vkNegotiateLoaderLayerInterfaceVersion fp_negotiate_layer_version,
VkNegotiateLayerInterface *interface_struct) {
memset(interface_struct, 0, sizeof(VkNegotiateLayerInterface));
interface_struct->sType = LAYER_NEGOTIATE_INTERFACE_STRUCT;
interface_struct->loaderLayerInterfaceVersion = 1;
interface_struct->pNext = NULL;
if (fp_negotiate_layer_version != NULL) {
// Layer supports the negotiation API, so call it with the loader's
// latest version supported
interface_struct->loaderLayerInterfaceVersion = CURRENT_LOADER_LAYER_INTERFACE_VERSION;
VkResult result = fp_negotiate_layer_version(interface_struct);
if (result != VK_SUCCESS) {
// Layer no longer supports the loader's latest interface version so
// fail loading the Layer
return false;
}
}
if (interface_struct->loaderLayerInterfaceVersion < MIN_SUPPORTED_LOADER_LAYER_INTERFACE_VERSION) {
// Loader no longer supports the layer's latest interface version so
// fail loading the layer
return false;
}
return true;
}
VKAPI_ATTR VkResult VKAPI_CALL loader_layer_create_device(VkInstance instance, VkPhysicalDevice physicalDevice,
const VkDeviceCreateInfo *pCreateInfo,
const VkAllocationCallbacks *pAllocator, VkDevice *pDevice,
PFN_vkGetInstanceProcAddr layerGIPA, PFN_vkGetDeviceProcAddr *nextGDPA) {
VkResult res;
VkPhysicalDevice internal_device = VK_NULL_HANDLE;
struct loader_device *dev = NULL;
struct loader_instance *inst = NULL;
if (instance != VK_NULL_HANDLE) {
inst = loader_get_instance(instance);
internal_device = physicalDevice;
} else {
struct loader_physical_device_tramp *phys_dev = (struct loader_physical_device_tramp *)physicalDevice;
internal_device = phys_dev->phys_dev;
inst = (struct loader_instance *)phys_dev->this_instance;
}
// Get the physical device (ICD) extensions
struct loader_extension_list icd_exts;
icd_exts.list = NULL;
res = loader_init_generic_list(inst, (struct loader_generic_list *)&icd_exts, sizeof(VkExtensionProperties));
if (VK_SUCCESS != res) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "vkCreateDevice: Failed to create ICD extension list");
goto out;
}
PFN_vkEnumerateDeviceExtensionProperties enumDeviceExtensionProperties = NULL;
if (layerGIPA != NULL) {
enumDeviceExtensionProperties =
(PFN_vkEnumerateDeviceExtensionProperties)layerGIPA(instance, "vkEnumerateDeviceExtensionProperties");
} else {
enumDeviceExtensionProperties = inst->disp->layer_inst_disp.EnumerateDeviceExtensionProperties;
}
res = loader_add_device_extensions(inst, enumDeviceExtensionProperties, internal_device, "Unknown", &icd_exts);
if (res != VK_SUCCESS) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "vkCreateDevice: Failed to add extensions to list");
goto out;
}
// Make sure requested extensions to be enabled are supported
res = loader_validate_device_extensions(inst, &inst->expanded_activated_layer_list, &icd_exts, pCreateInfo);
if (res != VK_SUCCESS) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "vkCreateDevice: Failed to validate extensions in list");
goto out;
}
dev = loader_create_logical_device(inst, pAllocator);
if (dev == NULL) {
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
// Copy the application enabled instance layer list into the device
if (NULL != inst->app_activated_layer_list.list) {
dev->app_activated_layer_list.capacity = inst->app_activated_layer_list.capacity;
dev->app_activated_layer_list.count = inst->app_activated_layer_list.count;
dev->app_activated_layer_list.list =
loader_device_heap_alloc(dev, inst->app_activated_layer_list.capacity, VK_SYSTEM_ALLOCATION_SCOPE_DEVICE);
if (dev->app_activated_layer_list.list == NULL) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"vkCreateDevice: Failed to allocate application activated layer list of size %d.",
inst->app_activated_layer_list.capacity);
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
memcpy(dev->app_activated_layer_list.list, inst->app_activated_layer_list.list,
sizeof(*dev->app_activated_layer_list.list) * dev->app_activated_layer_list.count);
} else {
dev->app_activated_layer_list.capacity = 0;
dev->app_activated_layer_list.count = 0;
dev->app_activated_layer_list.list = NULL;
}
// Copy the expanded enabled instance layer list into the device
if (NULL != inst->expanded_activated_layer_list.list) {
dev->expanded_activated_layer_list.capacity = inst->expanded_activated_layer_list.capacity;
dev->expanded_activated_layer_list.count = inst->expanded_activated_layer_list.count;
dev->expanded_activated_layer_list.list =
loader_device_heap_alloc(dev, inst->expanded_activated_layer_list.capacity, VK_SYSTEM_ALLOCATION_SCOPE_DEVICE);
if (dev->expanded_activated_layer_list.list == NULL) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"vkCreateDevice: Failed to allocate expanded activated layer list of size %d.",
inst->expanded_activated_layer_list.capacity);
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
memcpy(dev->expanded_activated_layer_list.list, inst->expanded_activated_layer_list.list,
sizeof(*dev->expanded_activated_layer_list.list) * dev->expanded_activated_layer_list.count);
} else {
dev->expanded_activated_layer_list.capacity = 0;
dev->expanded_activated_layer_list.count = 0;
dev->expanded_activated_layer_list.list = NULL;
}
res = loader_create_device_chain(internal_device, pCreateInfo, pAllocator, inst, dev, layerGIPA, nextGDPA);
if (res != VK_SUCCESS) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "vkCreateDevice: Failed to create device chain.");
goto out;
}
*pDevice = dev->chain_device;
// Initialize any device extension dispatch entry's from the instance list
loader_init_dispatch_dev_ext(inst, dev);
// Initialize WSI device extensions as part of core dispatch since loader
// has dedicated trampoline code for these
loader_init_device_extension_dispatch_table(&dev->loader_dispatch, inst->disp->layer_inst_disp.GetInstanceProcAddr,
dev->loader_dispatch.core_dispatch.GetDeviceProcAddr, inst->instance, *pDevice);
out:
// Failure cleanup
if (VK_SUCCESS != res) {
if (NULL != dev) {
loader_destroy_logical_device(inst, dev, pAllocator);
}
}
if (NULL != icd_exts.list) {
loader_destroy_generic_list(inst, (struct loader_generic_list *)&icd_exts);
}
return res;
}
VKAPI_ATTR void VKAPI_CALL loader_layer_destroy_device(VkDevice device, const VkAllocationCallbacks *pAllocator,
PFN_vkDestroyDevice destroyFunction) {
struct loader_device *dev;
if (device == VK_NULL_HANDLE) {
return;
}
struct loader_icd_term *icd_term = loader_get_icd_and_device(device, &dev, NULL);
const struct loader_instance *inst = icd_term->this_instance;
destroyFunction(device, pAllocator);
dev->chain_device = NULL;
dev->icd_device = NULL;
loader_remove_logical_device(inst, icd_term, dev, pAllocator);
}
// Given the list of layers to activate in the loader_instance
// structure. This function will add a VkLayerInstanceCreateInfo
// structure to the VkInstanceCreateInfo.pNext pointer.
// Each activated layer will have it's own VkLayerInstanceLink
// structure that tells the layer what Get*ProcAddr to call to
// get function pointers to the next layer down.
// Once the chain info has been created this function will
// execute the CreateInstance call chain. Each layer will
// then have an opportunity in it's CreateInstance function
// to setup it's dispatch table when the lower layer returns
// successfully.
// Each layer can wrap or not-wrap the returned VkInstance object
// as it sees fit.
// The instance chain is terminated by a loader function
// that will call CreateInstance on all available ICD's and
// cache those VkInstance objects for future use.
VkResult loader_create_instance_chain(const VkInstanceCreateInfo *pCreateInfo, const VkAllocationCallbacks *pAllocator,
struct loader_instance *inst, VkInstance *created_instance) {
uint32_t num_activated_layers = 0;
struct activated_layer_info *activated_layers = NULL;
VkLayerInstanceCreateInfo chain_info;
VkLayerInstanceLink *layer_instance_link_info = NULL;
VkInstanceCreateInfo loader_create_info;
VkResult res;
PFN_vkGetInstanceProcAddr next_gipa = loader_gpa_instance_internal;
PFN_vkGetInstanceProcAddr cur_gipa = loader_gpa_instance_internal;
PFN_vkGetDeviceProcAddr cur_gdpa = loader_gpa_device_internal;
PFN_GetPhysicalDeviceProcAddr next_gpdpa = loader_gpdpa_instance_internal;
PFN_GetPhysicalDeviceProcAddr cur_gpdpa = loader_gpdpa_instance_internal;
memcpy(&loader_create_info, pCreateInfo, sizeof(VkInstanceCreateInfo));
if (inst->expanded_activated_layer_list.count > 0) {
chain_info.u.pLayerInfo = NULL;
chain_info.pNext = pCreateInfo->pNext;
chain_info.sType = VK_STRUCTURE_TYPE_LOADER_INSTANCE_CREATE_INFO;
chain_info.function = VK_LAYER_LINK_INFO;
loader_create_info.pNext = &chain_info;
layer_instance_link_info = loader_stack_alloc(sizeof(VkLayerInstanceLink) * inst->expanded_activated_layer_list.count);
if (!layer_instance_link_info) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_create_instance_chain: Failed to alloc Instance objects for layer");
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
activated_layers = loader_stack_alloc(sizeof(struct activated_layer_info) * inst->expanded_activated_layer_list.count);
if (!activated_layers) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_create_instance_chain: Failed to alloc activated layer storage array");
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
// Create instance chain of enabled layers
for (int32_t i = inst->expanded_activated_layer_list.count - 1; i >= 0; i--) {
struct loader_layer_properties *layer_prop = &inst->expanded_activated_layer_list.list[i];
loader_platform_dl_handle lib_handle;
// Skip it if a Layer with the same name has been already successfully activated
if (loader_names_array_has_layer_property(&layer_prop->info, num_activated_layers, activated_layers)) {
continue;
}
lib_handle = loader_open_layer_file(inst, "instance", layer_prop);
if (!lib_handle) {
continue;
}
if (NULL == layer_prop->functions.negotiate_layer_interface) {
PFN_vkNegotiateLoaderLayerInterfaceVersion negotiate_interface = NULL;
bool functions_in_interface = false;
if (strlen(layer_prop->functions.str_negotiate_interface) == 0) {
negotiate_interface = (PFN_vkNegotiateLoaderLayerInterfaceVersion)loader_platform_get_proc_address(
lib_handle, "vkNegotiateLoaderLayerInterfaceVersion");
} else {
negotiate_interface = (PFN_vkNegotiateLoaderLayerInterfaceVersion)loader_platform_get_proc_address(
lib_handle, layer_prop->functions.str_negotiate_interface);
}
// If we can negotiate an interface version, then we can also
// get everything we need from the one function call, so try
// that first, and see if we can get all the function pointers
// necessary from that one call.
if (NULL != negotiate_interface) {
layer_prop->functions.negotiate_layer_interface = negotiate_interface;
VkNegotiateLayerInterface interface_struct;
if (loader_get_layer_interface_version(negotiate_interface, &interface_struct)) {
// Go ahead and set the properties version to the
// correct value.
layer_prop->interface_version = interface_struct.loaderLayerInterfaceVersion;
// If the interface is 2 or newer, we have access to the
// new GetPhysicalDeviceProcAddr function, so grab it,
// and the other necessary functions, from the
// structure.
if (interface_struct.loaderLayerInterfaceVersion > 1) {
cur_gipa = interface_struct.pfnGetInstanceProcAddr;
cur_gdpa = interface_struct.pfnGetDeviceProcAddr;
cur_gpdpa = interface_struct.pfnGetPhysicalDeviceProcAddr;
if (cur_gipa != NULL) {
// We've set the functions, so make sure we
// don't do the unnecessary calls later.
functions_in_interface = true;
}
}
}
}
if (!functions_in_interface) {
if ((cur_gipa = layer_prop->functions.get_instance_proc_addr) == NULL) {
if (strlen(layer_prop->functions.str_gipa) == 0) {
cur_gipa =
(PFN_vkGetInstanceProcAddr)loader_platform_get_proc_address(lib_handle, "vkGetInstanceProcAddr");
layer_prop->functions.get_instance_proc_addr = cur_gipa;
if (NULL == cur_gipa) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"loader_create_instance_chain: Failed to find \'vkGetInstanceProcAddr\' in layer %s",
layer_prop->lib_name);
continue;
}
} else {
cur_gipa = (PFN_vkGetInstanceProcAddr)loader_platform_get_proc_address(lib_handle,
layer_prop->functions.str_gipa);
if (NULL == cur_gipa) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"loader_create_instance_chain: Failed to find \'%s\' in layer %s",
layer_prop->functions.str_gipa, layer_prop->lib_name);
continue;
}
}
}
}
}
layer_instance_link_info[num_activated_layers].pNext = chain_info.u.pLayerInfo;
layer_instance_link_info[num_activated_layers].pfnNextGetInstanceProcAddr = next_gipa;
layer_instance_link_info[num_activated_layers].pfnNextGetPhysicalDeviceProcAddr = next_gpdpa;
next_gipa = cur_gipa;
if (layer_prop->interface_version > 1 && cur_gpdpa != NULL) {
layer_prop->functions.get_physical_device_proc_addr = cur_gpdpa;
next_gpdpa = cur_gpdpa;
}
if (layer_prop->interface_version > 1 && cur_gipa != NULL) {
layer_prop->functions.get_instance_proc_addr = cur_gipa;
}
if (layer_prop->interface_version > 1 && cur_gdpa != NULL) {
layer_prop->functions.get_device_proc_addr = cur_gdpa;
}
chain_info.u.pLayerInfo = &layer_instance_link_info[num_activated_layers];
activated_layers[num_activated_layers].name = layer_prop->info.layerName;
activated_layers[num_activated_layers].manifest = layer_prop->manifest_file_name;
activated_layers[num_activated_layers].library = layer_prop->lib_name;
activated_layers[num_activated_layers].is_implicit = !(layer_prop->type_flags & VK_LAYER_TYPE_FLAG_EXPLICIT_LAYER);
if (activated_layers[num_activated_layers].is_implicit) {
activated_layers[num_activated_layers].disable_env = layer_prop->disable_env_var.name;
}
loader_log(inst, VULKAN_LOADER_INFO_BIT | VULKAN_LOADER_LAYER_BIT, 0, "Insert instance layer %s (%s)",
layer_prop->info.layerName, layer_prop->lib_name);
num_activated_layers++;
}
}
// Make sure each layer requested by the application was actually loaded
for (uint32_t exp = 0; exp < inst->expanded_activated_layer_list.count; ++exp) {
struct loader_layer_properties *exp_layer_prop = &inst->expanded_activated_layer_list.list[exp];
bool found = false;
for (uint32_t act = 0; act < num_activated_layers; ++act) {
if (!strcmp(activated_layers[act].name, exp_layer_prop->info.layerName)) {
found = true;
break;
}
}
// If it wasn't found, we want to at least log an error. However, if it was enabled by the application directly,
// we want to return a bad layer error.
if (!found) {
bool app_requested = false;
for (uint32_t act = 0; act < pCreateInfo->enabledLayerCount; ++act) {
if (!strcmp(pCreateInfo->ppEnabledLayerNames[act], exp_layer_prop->info.layerName)) {
app_requested = true;
break;
}
}
VkFlags log_flag = VULKAN_LOADER_LAYER_BIT;
char ending = '.';
if (app_requested) {
log_flag |= VULKAN_LOADER_ERROR_BIT;
ending = '!';
} else {
log_flag |= VULKAN_LOADER_INFO_BIT;
}
switch (exp_layer_prop->lib_status) {
case LOADER_LAYER_LIB_NOT_LOADED:
loader_log(inst, log_flag, 0, "Requested layer %s was not loaded%c", exp_layer_prop->info.layerName, ending);
break;
case LOADER_LAYER_LIB_ERROR_WRONG_BIT_TYPE: {
loader_log(inst, log_flag, 0, "Requested layer %s was wrong bit-type%c", exp_layer_prop->info.layerName,
ending);
break;
}
case LOADER_LAYER_LIB_ERROR_FAILED_TO_LOAD:
loader_log(inst, log_flag, 0, "Requested layer %s failed to load%c", exp_layer_prop->info.layerName, ending);
break;
case LOADER_LAYER_LIB_SUCCESS_LOADED:
// Shouldn't be able to reach this but if it is, best to report a debug
loader_log(inst, log_flag, 0,
"Shouldn't reach this. A valid version of requested layer %s was loaded but was not found in the "
"list of activated layers%c",
exp_layer_prop->info.layerName, ending);
break;
}
if (app_requested) {
return VK_ERROR_LAYER_NOT_PRESENT;
}
}
}
VkLoaderFeatureFlags feature_flags = 0;
#if defined(_WIN32)
feature_flags = windows_initialize_dxgi();
#endif
PFN_vkCreateInstance fpCreateInstance = (PFN_vkCreateInstance)next_gipa(*created_instance, "vkCreateInstance");
if (fpCreateInstance) {
const VkLayerInstanceCreateInfo instance_dispatch = {
.sType = VK_STRUCTURE_TYPE_LOADER_INSTANCE_CREATE_INFO,
.pNext = loader_create_info.pNext,
.function = VK_LOADER_DATA_CALLBACK,
.u =
{
.pfnSetInstanceLoaderData = vkSetInstanceDispatch,
},
};
const VkLayerInstanceCreateInfo device_callback = {
.sType = VK_STRUCTURE_TYPE_LOADER_INSTANCE_CREATE_INFO,
.pNext = &instance_dispatch,
.function = VK_LOADER_LAYER_CREATE_DEVICE_CALLBACK,
.u =
{
.layerDevice =
{
.pfnLayerCreateDevice = loader_layer_create_device,
.pfnLayerDestroyDevice = loader_layer_destroy_device,
},
},
};
const VkLayerInstanceCreateInfo loader_features = {
.sType = VK_STRUCTURE_TYPE_LOADER_INSTANCE_CREATE_INFO,
.pNext = &device_callback,
.function = VK_LOADER_FEATURES,
.u =
{
.loaderFeatures = feature_flags,
},
};
loader_create_info.pNext = &loader_features;
// If layer debugging is enabled, let's print out the full callstack with layers in their
// defined order.
if ((loader_get_debug_level() & VULKAN_LOADER_LAYER_BIT) != 0) {
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, "vkCreateInstance layer callstack setup to:");
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " <Application>");
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " ||");
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " <Loader>");
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " ||");
for (uint32_t cur_layer = 0; cur_layer < num_activated_layers; ++cur_layer) {
uint32_t index = num_activated_layers - cur_layer - 1;
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " %s", activated_layers[index].name);
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " Type: %s",
activated_layers[index].is_implicit ? "Implicit" : "Explicit");
if (activated_layers[index].is_implicit) {
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " Disable Env Var: %s",
activated_layers[index].disable_env);
}
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " Manifest: %s", activated_layers[index].manifest);
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " Library: %s", activated_layers[index].library);
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " ||");
}
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " <Drivers>\n");
}
res = fpCreateInstance(&loader_create_info, pAllocator, created_instance);
} else {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_create_instance_chain: Failed to find \'vkCreateInstance\'");
// Couldn't find CreateInstance function!
res = VK_ERROR_INITIALIZATION_FAILED;
}
if (res == VK_SUCCESS) {
loader_init_instance_core_dispatch_table(&inst->disp->layer_inst_disp, next_gipa, *created_instance);
inst->instance = *created_instance;
}
return res;
}
void loader_activate_instance_layer_extensions(struct loader_instance *inst, VkInstance created_inst) {
loader_init_instance_extension_dispatch_table(&inst->disp->layer_inst_disp, inst->disp->layer_inst_disp.GetInstanceProcAddr,
created_inst);
}
VkResult loader_create_device_chain(const VkPhysicalDevice pd, const VkDeviceCreateInfo *pCreateInfo,
const VkAllocationCallbacks *pAllocator, const struct loader_instance *inst,
struct loader_device *dev, PFN_vkGetInstanceProcAddr callingLayer,
PFN_vkGetDeviceProcAddr *layerNextGDPA) {
uint32_t num_activated_layers = 0;
struct activated_layer_info *activated_layers = NULL;
VkLayerDeviceLink *layer_device_link_info;
VkLayerDeviceCreateInfo chain_info;
VkDeviceCreateInfo loader_create_info;
VkResult res;
PFN_vkGetDeviceProcAddr fpGDPA = NULL, nextGDPA = loader_gpa_device_internal;
PFN_vkGetInstanceProcAddr fpGIPA = NULL, nextGIPA = loader_gpa_instance_internal;
memcpy(&loader_create_info, pCreateInfo, sizeof(VkDeviceCreateInfo));
// Before we continue, we need to find out if the KHR_device_group extension is in the enabled list. If it is, we then
// need to look for the corresponding VkDeviceGroupDeviceCreateInfoKHR struct in the device list. This is because we
// need to replace all the incoming physical device values (which are really loader trampoline physical device values)
// with the layer/ICD version.
{
VkBaseOutStructure *pNext = (VkBaseOutStructure *)loader_create_info.pNext;
VkBaseOutStructure *pPrev = (VkBaseOutStructure *)&loader_create_info;
while (NULL != pNext) {
if (VK_STRUCTURE_TYPE_DEVICE_GROUP_DEVICE_CREATE_INFO == pNext->sType) {
VkDeviceGroupDeviceCreateInfoKHR *cur_struct = (VkDeviceGroupDeviceCreateInfoKHR *)pNext;
if (0 < cur_struct->physicalDeviceCount && NULL != cur_struct->pPhysicalDevices) {
VkDeviceGroupDeviceCreateInfoKHR *temp_struct = loader_stack_alloc(sizeof(VkDeviceGroupDeviceCreateInfoKHR));
VkPhysicalDevice *phys_dev_array = NULL;
if (NULL == temp_struct) {
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
memcpy(temp_struct, cur_struct, sizeof(VkDeviceGroupDeviceCreateInfoKHR));
phys_dev_array = loader_stack_alloc(sizeof(VkPhysicalDevice) * cur_struct->physicalDeviceCount);
if (NULL == phys_dev_array) {
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
// Before calling down, replace the incoming physical device values (which are really loader trampoline
// physical devices) with the next layer (or possibly even the terminator) physical device values.
struct loader_physical_device_tramp *cur_tramp;
for (uint32_t phys_dev = 0; phys_dev < cur_struct->physicalDeviceCount; phys_dev++) {
cur_tramp = (struct loader_physical_device_tramp *)cur_struct->pPhysicalDevices[phys_dev];
phys_dev_array[phys_dev] = cur_tramp->phys_dev;
}
temp_struct->pPhysicalDevices = phys_dev_array;
// Replace the old struct in the pNext chain with this one.
pPrev->pNext = (VkBaseOutStructure *)temp_struct;
}
break;
}
pPrev = pNext;
pNext = pNext->pNext;
}
}
if (dev->expanded_activated_layer_list.count > 0) {
layer_device_link_info = loader_stack_alloc(sizeof(VkLayerDeviceLink) * dev->expanded_activated_layer_list.count);
if (!layer_device_link_info) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_create_device_chain: Failed to alloc Device objects for layer. Skipping Layer.");
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
activated_layers = loader_stack_alloc(sizeof(struct activated_layer_info) * inst->expanded_activated_layer_list.count);
if (!activated_layers) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_create_device_chain: Failed to alloc activated layer storage array");
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
chain_info.sType = VK_STRUCTURE_TYPE_LOADER_DEVICE_CREATE_INFO;
chain_info.function = VK_LAYER_LINK_INFO;
chain_info.u.pLayerInfo = NULL;
chain_info.pNext = loader_create_info.pNext;
loader_create_info.pNext = &chain_info;
bool done = false;
// Create instance chain of enabled layers
for (int32_t i = dev->expanded_activated_layer_list.count - 1; i >= 0; i--) {
struct loader_layer_properties *layer_prop = &dev->expanded_activated_layer_list.list[i];
loader_platform_dl_handle lib_handle;
// Skip it if a Layer with the same name has been already successfully activated
if (loader_names_array_has_layer_property(&layer_prop->info, num_activated_layers, activated_layers)) {
continue;
}
lib_handle = loader_open_layer_file(inst, "device", layer_prop);
if (!lib_handle || done) {
continue;
}
// The Get*ProcAddr pointers will already be filled in if they were received from either the json file or the
// version negotiation
if ((fpGIPA = layer_prop->functions.get_instance_proc_addr) == NULL) {
if (strlen(layer_prop->functions.str_gipa) == 0) {
fpGIPA = (PFN_vkGetInstanceProcAddr)loader_platform_get_proc_address(lib_handle, "vkGetInstanceProcAddr");
layer_prop->functions.get_instance_proc_addr = fpGIPA;
} else
fpGIPA =
(PFN_vkGetInstanceProcAddr)loader_platform_get_proc_address(lib_handle, layer_prop->functions.str_gipa);
if (!fpGIPA) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"loader_create_device_chain: Failed to find \'vkGetInstanceProcAddr\' in layer %s. Skipping layer.",
layer_prop->lib_name);
continue;
}
}
if (fpGIPA == callingLayer) {
if (layerNextGDPA != NULL) {
*layerNextGDPA = nextGDPA;
}
done = true;
continue;
}
if ((fpGDPA = layer_prop->functions.get_device_proc_addr) == NULL) {
if (strlen(layer_prop->functions.str_gdpa) == 0) {
fpGDPA = (PFN_vkGetDeviceProcAddr)loader_platform_get_proc_address(lib_handle, "vkGetDeviceProcAddr");
layer_prop->functions.get_device_proc_addr = fpGDPA;
} else
fpGDPA = (PFN_vkGetDeviceProcAddr)loader_platform_get_proc_address(lib_handle, layer_prop->functions.str_gdpa);
if (!fpGDPA) {
loader_log(inst, VULKAN_LOADER_INFO_BIT | VULKAN_LOADER_LAYER_BIT, 0,
"Failed to find vkGetDeviceProcAddr in layer %s", layer_prop->lib_name);
continue;
}
}
layer_device_link_info[num_activated_layers].pNext = chain_info.u.pLayerInfo;
layer_device_link_info[num_activated_layers].pfnNextGetInstanceProcAddr = nextGIPA;
layer_device_link_info[num_activated_layers].pfnNextGetDeviceProcAddr = nextGDPA;
chain_info.u.pLayerInfo = &layer_device_link_info[num_activated_layers];
nextGIPA = fpGIPA;
nextGDPA = fpGDPA;
activated_layers[num_activated_layers].name = layer_prop->info.layerName;
activated_layers[num_activated_layers].manifest = layer_prop->manifest_file_name;
activated_layers[num_activated_layers].library = layer_prop->lib_name;
activated_layers[num_activated_layers].is_implicit = !(layer_prop->type_flags & VK_LAYER_TYPE_FLAG_EXPLICIT_LAYER);
if (activated_layers[num_activated_layers].is_implicit) {
activated_layers[num_activated_layers].disable_env = layer_prop->disable_env_var.name;
}
loader_log(inst, VULKAN_LOADER_INFO_BIT | VULKAN_LOADER_LAYER_BIT, 0, "Inserted device layer %s (%s)",
layer_prop->info.layerName, layer_prop->lib_name);
num_activated_layers++;
}
}
VkDevice created_device = (VkDevice)dev;
PFN_vkCreateDevice fpCreateDevice = (PFN_vkCreateDevice)nextGIPA(inst->instance, "vkCreateDevice");
if (fpCreateDevice) {
VkLayerDeviceCreateInfo create_info_disp;
create_info_disp.sType = VK_STRUCTURE_TYPE_LOADER_DEVICE_CREATE_INFO;
create_info_disp.function = VK_LOADER_DATA_CALLBACK;
create_info_disp.u.pfnSetDeviceLoaderData = vkSetDeviceDispatch;
// If layer debugging is enabled, let's print out the full callstack with layers in their
// defined order.
if ((loader_get_debug_level() & VULKAN_LOADER_LAYER_BIT) != 0) {
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, "vkCreateDevice layer callstack setup to:");
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " <Application>");
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " ||");
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " <Loader>");
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " ||");
for (uint32_t cur_layer = 0; cur_layer < num_activated_layers; ++cur_layer) {
uint32_t index = num_activated_layers - cur_layer - 1;
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " %s", activated_layers[index].name);
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " Type: %s",
activated_layers[index].is_implicit ? "Implicit" : "Explicit");
if (activated_layers[index].is_implicit) {
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " Disable Env Var: %s",
activated_layers[index].disable_env);
}
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " Manifest: %s", activated_layers[index].manifest);
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " Library: %s", activated_layers[index].library);
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " ||");
}
loader_log(inst, VULKAN_LOADER_LAYER_BIT, 0, " <Device>\n");
}
create_info_disp.pNext = loader_create_info.pNext;
loader_create_info.pNext = &create_info_disp;
res = fpCreateDevice(pd, &loader_create_info, pAllocator, &created_device);
if (res != VK_SUCCESS) {
return res;
}
dev->chain_device = created_device;
} else {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_create_device_chain: Failed to find \'vkCreateDevice\' in layers or ICD");
// Couldn't find CreateDevice function!
return VK_ERROR_INITIALIZATION_FAILED;
}
// Initialize device dispatch table
loader_init_device_dispatch_table(&dev->loader_dispatch, nextGDPA, dev->chain_device);
return res;
}
VkResult loader_validate_layers(const struct loader_instance *inst, const uint32_t layer_count,
const char *const *ppEnabledLayerNames, const struct loader_layer_list *list) {
struct loader_layer_properties *prop;
if (layer_count > 0 && ppEnabledLayerNames == NULL) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_validate_instance_layers: ppEnabledLayerNames is NULL but enabledLayerCount is greater than zero");
return VK_ERROR_LAYER_NOT_PRESENT;
}
for (uint32_t i = 0; i < layer_count; i++) {
VkStringErrorFlags result = vk_string_validate(MaxLoaderStringLength, ppEnabledLayerNames[i]);
if (result != VK_STRING_ERROR_NONE) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_validate_layers: ppEnabledLayerNames contains string that is too long or is badly formed");
return VK_ERROR_LAYER_NOT_PRESENT;
}
prop = loader_find_layer_property(ppEnabledLayerNames[i], list);
if (NULL == prop) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_validate_layers: Layer %d does not exist in the list of available layers", i);
return VK_ERROR_LAYER_NOT_PRESENT;
}
}
return VK_SUCCESS;
}
VkResult loader_validate_instance_extensions(struct loader_instance *inst, const struct loader_extension_list *icd_exts,
const struct loader_layer_list *instance_layers,
const VkInstanceCreateInfo *pCreateInfo) {
VkExtensionProperties *extension_prop;
char *env_value;
bool check_if_known = true;
VkResult res = VK_SUCCESS;
struct loader_layer_list active_layers;
struct loader_layer_list expanded_layers;
memset(&active_layers, 0, sizeof(active_layers));
memset(&expanded_layers, 0, sizeof(expanded_layers));
if (pCreateInfo->enabledExtensionCount > 0 && pCreateInfo->ppEnabledExtensionNames == NULL) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_validate_instance_extensions: Instance ppEnabledExtensionNames is NULL but enabledExtensionCount is "
"greater than zero");
return VK_ERROR_EXTENSION_NOT_PRESENT;
}
if (!loader_init_layer_list(inst, &active_layers)) {
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
if (!loader_init_layer_list(inst, &expanded_layers)) {
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
// Build the lists of active layers (including metalayers) and expanded layers (with metalayers resolved to their
// components)
loader_add_implicit_layers(inst, &active_layers, &expanded_layers, instance_layers);
res = loader_add_environment_layers(inst, VK_LAYER_TYPE_FLAG_EXPLICIT_LAYER, ENABLED_LAYERS_ENV, &active_layers,
&expanded_layers, instance_layers);
if (res != VK_SUCCESS) {
goto out;
}
res = loader_add_layer_names_to_list(inst, &active_layers, &expanded_layers, pCreateInfo->enabledLayerCount,
pCreateInfo->ppEnabledLayerNames, instance_layers);
if (VK_SUCCESS != res) {
goto out;
}
for (uint32_t i = 0; i < pCreateInfo->enabledExtensionCount; i++) {
VkStringErrorFlags result = vk_string_validate(MaxLoaderStringLength, pCreateInfo->ppEnabledExtensionNames[i]);
if (result != VK_STRING_ERROR_NONE) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_validate_instance_extensions: Instance ppEnabledExtensionNames contains "
"string that is too long or is badly formed");
res = VK_ERROR_EXTENSION_NOT_PRESENT;
goto out;
}
// Check if a user wants to disable the instance extension filtering behavior
env_value = loader_getenv("VK_LOADER_DISABLE_INST_EXT_FILTER", inst);
if (NULL != env_value && atoi(env_value) != 0) {
check_if_known = false;
}
loader_free_getenv(env_value, inst);
if (check_if_known) {
// See if the extension is in the list of supported extensions
bool found = false;
for (uint32_t j = 0; LOADER_INSTANCE_EXTENSIONS[j] != NULL; j++) {
if (strcmp(pCreateInfo->ppEnabledExtensionNames[i], LOADER_INSTANCE_EXTENSIONS[j]) == 0) {
found = true;
break;
}
}
// If it isn't in the list, return an error
if (!found) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_validate_instance_extensions: Extension %s not found in list of known instance extensions.",
pCreateInfo->ppEnabledExtensionNames[i]);
res = VK_ERROR_EXTENSION_NOT_PRESENT;
goto out;
}
}
extension_prop = get_extension_property(pCreateInfo->ppEnabledExtensionNames[i], icd_exts);
if (extension_prop) {
continue;
}
extension_prop = NULL;
// Not in global list, search layer extension lists
struct loader_layer_properties *layer_prop = NULL;
for (uint32_t j = 0; NULL == extension_prop && j < expanded_layers.count; ++j) {
extension_prop =
get_extension_property(pCreateInfo->ppEnabledExtensionNames[i], &expanded_layers.list[j].instance_extension_list);
if (extension_prop) {
// Found the extension in one of the layers enabled by the app.
break;
}
layer_prop = loader_find_layer_property(expanded_layers.list[j].info.layerName, instance_layers);
if (NULL == layer_prop) {
// Should NOT get here, loader_validate_layers should have already filtered this case out.
continue;
}
}
if (!extension_prop) {
// Didn't find extension name in any of the global layers, error out
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"loader_validate_instance_extensions: Instance extension %s not supported by available ICDs or enabled "
"layers.",
pCreateInfo->ppEnabledExtensionNames[i]);
res = VK_ERROR_EXTENSION_NOT_PRESENT;
goto out;
}
}
out:
loader_destroy_layer_list(inst, NULL, &active_layers);
loader_destroy_layer_list(inst, NULL, &expanded_layers);
return res;
}
VkResult loader_validate_device_extensions(struct loader_instance *this_instance,
const struct loader_layer_list *activated_device_layers,
const struct loader_extension_list *icd_exts, const VkDeviceCreateInfo *pCreateInfo) {
VkExtensionProperties *extension_prop;
struct loader_layer_properties *layer_prop;
for (uint32_t i = 0; i < pCreateInfo->enabledExtensionCount; i++) {
VkStringErrorFlags result = vk_string_validate(MaxLoaderStringLength, pCreateInfo->ppEnabledExtensionNames[i]);
if (result != VK_STRING_ERROR_NONE) {
loader_log(this_instance, VULKAN_LOADER_ERROR_BIT, 0,
"loader_validate_device_extensions: Device ppEnabledExtensionNames contains "
"string that is too long or is badly formed");
return VK_ERROR_EXTENSION_NOT_PRESENT;
}
const char *extension_name = pCreateInfo->ppEnabledExtensionNames[i];
extension_prop = get_extension_property(extension_name, icd_exts);
if (extension_prop) {
continue;
}
// Not in global list, search activated layer extension lists
for (uint32_t j = 0; j < activated_device_layers->count; j++) {
layer_prop = &activated_device_layers->list[j];
extension_prop = get_dev_extension_property(extension_name, &layer_prop->device_extension_list);
if (extension_prop) {
// Found the extension in one of the layers enabled by the app.
break;
}
}
if (!extension_prop) {
// Didn't find extension name in any of the device layers, error out
loader_log(this_instance, VULKAN_LOADER_ERROR_BIT, 0,
"loader_validate_device_extensions: Device extension %s not supported by selected physical device "
"or enabled layers.",
pCreateInfo->ppEnabledExtensionNames[i]);
return VK_ERROR_EXTENSION_NOT_PRESENT;
}
}
return VK_SUCCESS;
}
// Terminator functions for the Instance chain
// All named terminator_<Vulkan API name>
VKAPI_ATTR VkResult VKAPI_CALL terminator_CreateInstance(const VkInstanceCreateInfo *pCreateInfo,
const VkAllocationCallbacks *pAllocator, VkInstance *pInstance) {
struct loader_icd_term *icd_term;
VkExtensionProperties *prop;
char **filtered_extension_names = NULL;
VkInstanceCreateInfo icd_create_info;
VkResult res = VK_SUCCESS;
bool one_icd_successful = false;
struct loader_instance *ptr_instance = (struct loader_instance *)*pInstance;
if (NULL == ptr_instance) {
loader_log(ptr_instance, VULKAN_LOADER_WARN_BIT, 0,
"terminator_CreateInstance: Loader instance pointer null encountered. Possibly set by active layer. (Policy "
"#LLP_LAYER_21)");
} else if (LOADER_MAGIC_NUMBER != ptr_instance->magic) {
loader_log(ptr_instance, VULKAN_LOADER_WARN_BIT, 0,
"terminator_CreateInstance: Instance pointer (%p) has invalid MAGIC value 0x%08x. Instance value possibly "
"corrupted by active layer (Policy #LLP_LAYER_21). ",
ptr_instance->magic);
}
memcpy(&icd_create_info, pCreateInfo, sizeof(icd_create_info));
icd_create_info.enabledLayerCount = 0;
icd_create_info.ppEnabledLayerNames = NULL;
// NOTE: Need to filter the extensions to only those supported by the ICD.
// No ICD will advertise support for layers. An ICD library could
// support a layer, but it would be independent of the actual ICD,
// just in the same library.
uint32_t extension_count = pCreateInfo->enabledExtensionCount;
#ifdef LOADER_ENABLE_LINUX_SORT
extension_count += 1;
#endif // LOADER_ENABLE_LINUX_SORT
filtered_extension_names = loader_stack_alloc(extension_count * sizeof(char *));
if (!filtered_extension_names) {
loader_log(ptr_instance, VULKAN_LOADER_ERROR_BIT, 0,
"terminator_CreateInstance: Failed create extension name array for %d extensions", extension_count);
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
icd_create_info.ppEnabledExtensionNames = (const char *const *)filtered_extension_names;
// Determine if Get Physical Device Properties 2 is available to this Instance
if (pCreateInfo->pApplicationInfo && pCreateInfo->pApplicationInfo->apiVersion >= VK_API_VERSION_1_1) {
ptr_instance->supports_get_dev_prop_2 = true;
} else {
for (uint32_t j = 0; j < pCreateInfo->enabledExtensionCount; j++) {
if (!strcmp(pCreateInfo->ppEnabledExtensionNames[j], VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME)) {
ptr_instance->supports_get_dev_prop_2 = true;
break;
}
}
}
for (uint32_t i = 0; i < ptr_instance->icd_tramp_list.count; i++) {
icd_term = loader_icd_add(ptr_instance, &ptr_instance->icd_tramp_list.scanned_list[i]);
if (NULL == icd_term) {
loader_log(ptr_instance, VULKAN_LOADER_ERROR_BIT, 0,
"terminator_CreateInstance: Failed to add ICD %d to ICD trampoline list.", i);
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
// If any error happens after here, we need to remove the ICD from the list,
// because we've already added it, but haven't validated it
// Make sure that we reset the pApplicationInfo so we don't get an old pointer
icd_create_info.pApplicationInfo = pCreateInfo->pApplicationInfo;
icd_create_info.enabledExtensionCount = 0;
struct loader_extension_list icd_exts;
loader_log(ptr_instance, VULKAN_LOADER_DEBUG_BIT, 0, "Build ICD instance extension list");
// traverse scanned icd list adding non-duplicate extensions to the list
res = loader_init_generic_list(ptr_instance, (struct loader_generic_list *)&icd_exts, sizeof(VkExtensionProperties));
if (VK_ERROR_OUT_OF_HOST_MEMORY == res) {
// If out of memory, bail immediately.
goto out;
} else if (VK_SUCCESS != res) {
// Something bad happened with this ICD, so free it and try the
// next.
ptr_instance->icd_terms = icd_term->next;
icd_term->next = NULL;
loader_icd_destroy(ptr_instance, icd_term, pAllocator);
continue;
}
res = loader_add_instance_extensions(ptr_instance, icd_term->scanned_icd->EnumerateInstanceExtensionProperties,
icd_term->scanned_icd->lib_name, &icd_exts);
if (VK_SUCCESS != res) {
loader_destroy_generic_list(ptr_instance, (struct loader_generic_list *)&icd_exts);
if (VK_ERROR_OUT_OF_HOST_MEMORY == res) {
// If out of memory, bail immediately.
goto out;
} else {
// Something bad happened with this ICD, so free it and try the next.
ptr_instance->icd_terms = icd_term->next;
icd_term->next = NULL;
loader_icd_destroy(ptr_instance, icd_term, pAllocator);
continue;
}
}
for (uint32_t j = 0; j < pCreateInfo->enabledExtensionCount; j++) {
prop = get_extension_property(pCreateInfo->ppEnabledExtensionNames[j], &icd_exts);
if (prop) {
filtered_extension_names[icd_create_info.enabledExtensionCount] = (char *)pCreateInfo->ppEnabledExtensionNames[j];
icd_create_info.enabledExtensionCount++;
}
}
#ifdef LOADER_ENABLE_LINUX_SORT
// Force on "VK_KHR_get_physical_device_properties2" for Linux as we use it for GPU sorting.
if (icd_term->scanned_icd->api_version < VK_API_VERSION_1_1) {
prop = get_extension_property(VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME, &icd_exts);
if (prop) {
filtered_extension_names[icd_create_info.enabledExtensionCount] =
(char *)VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME;
icd_create_info.enabledExtensionCount++;
}
}
#endif // LOADER_ENABLE_LINUX_SORT
// Determine if vkGetPhysicalDeviceProperties2 is available to this Instance
if (icd_term->scanned_icd->api_version >= VK_API_VERSION_1_1) {
icd_term->supports_get_dev_prop_2 = true;
} else {
for (uint32_t j = 0; j < icd_create_info.enabledExtensionCount; j++) {
if (!strcmp(filtered_extension_names[j], VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME)) {
icd_term->supports_get_dev_prop_2 = true;
break;
}
}
}
loader_destroy_generic_list(ptr_instance, (struct loader_generic_list *)&icd_exts);
// Get the driver version from vkEnumerateInstanceVersion
uint32_t icd_version = VK_API_VERSION_1_0;
VkResult icd_result = VK_SUCCESS;
if (icd_term->scanned_icd->api_version >= VK_API_VERSION_1_1) {
PFN_vkEnumerateInstanceVersion icd_enumerate_instance_version =
(PFN_vkEnumerateInstanceVersion)icd_term->scanned_icd->GetInstanceProcAddr(NULL, "vkEnumerateInstanceVersion");
if (icd_enumerate_instance_version != NULL) {
icd_result = icd_enumerate_instance_version(&icd_version);
if (icd_result != VK_SUCCESS) {
icd_version = VK_API_VERSION_1_0;
loader_log(ptr_instance, VULKAN_LOADER_DEBUG_BIT | VULKAN_LOADER_DRIVER_BIT, 0,
"terminator_CreateInstance: ICD \"%s\" vkEnumerateInstanceVersion returned error. The ICD will be "
"treated as a 1.0 ICD",
icd_term->scanned_icd->lib_name);
}
}
}
// Create an instance, substituting the version to 1.0 if necessary
VkApplicationInfo icd_app_info;
uint32_t icd_version_nopatch =
VK_MAKE_API_VERSION(0, VK_API_VERSION_MAJOR(icd_version), VK_API_VERSION_MINOR(icd_version), 0);
uint32_t requested_version = pCreateInfo == NULL || pCreateInfo->pApplicationInfo == NULL
? VK_API_VERSION_1_0
: pCreateInfo->pApplicationInfo->apiVersion;
if ((requested_version != 0) && (icd_version_nopatch == VK_API_VERSION_1_0)) {
if (icd_create_info.pApplicationInfo == NULL) {
memset(&icd_app_info, 0, sizeof(icd_app_info));
} else {
memcpy(&icd_app_info, icd_create_info.pApplicationInfo, sizeof(icd_app_info));
}
icd_app_info.apiVersion = icd_version;
icd_create_info.pApplicationInfo = &icd_app_info;
}
icd_result =
ptr_instance->icd_tramp_list.scanned_list[i].CreateInstance(&icd_create_info, pAllocator, &(icd_term->instance));
if (VK_ERROR_OUT_OF_HOST_MEMORY == icd_result) {
// If out of memory, bail immediately.
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
} else if (VK_SUCCESS != icd_result) {
loader_log(ptr_instance, VULKAN_LOADER_WARN_BIT, 0,
"terminator_CreateInstance: Failed to CreateInstance in ICD %d. Skipping ICD.", i);
ptr_instance->icd_terms = icd_term->next;
icd_term->next = NULL;
loader_icd_destroy(ptr_instance, icd_term, pAllocator);
continue;
}
if (!loader_icd_init_entries(icd_term, icd_term->instance,
ptr_instance->icd_tramp_list.scanned_list[i].GetInstanceProcAddr)) {
loader_log(ptr_instance, VULKAN_LOADER_WARN_BIT, 0,
"terminator_CreateInstance: Failed to CreateInstance and find entrypoints with ICD. Skipping ICD.");
ptr_instance->icd_terms = icd_term->next;
icd_term->next = NULL;
loader_icd_destroy(ptr_instance, icd_term, pAllocator);
continue;
}
if (ptr_instance->icd_tramp_list.scanned_list[i].interface_version < 3 &&
(
#ifdef VK_USE_PLATFORM_XLIB_KHR
NULL != icd_term->dispatch.CreateXlibSurfaceKHR ||
#endif // VK_USE_PLATFORM_XLIB_KHR
#ifdef VK_USE_PLATFORM_XCB_KHR
NULL != icd_term->dispatch.CreateXcbSurfaceKHR ||
#endif // VK_USE_PLATFORM_XCB_KHR
#ifdef VK_USE_PLATFORM_WAYLAND_KHR
NULL != icd_term->dispatch.CreateWaylandSurfaceKHR ||
#endif // VK_USE_PLATFORM_WAYLAND_KHR
#ifdef VK_USE_PLATFORM_ANDROID_KHR
NULL != icd_term->dispatch.CreateAndroidSurfaceKHR ||
#endif // VK_USE_PLATFORM_ANDROID_KHR
#ifdef VK_USE_PLATFORM_WIN32_KHR
NULL != icd_term->dispatch.CreateWin32SurfaceKHR ||
#endif // VK_USE_PLATFORM_WIN32_KHR
NULL != icd_term->dispatch.DestroySurfaceKHR)) {
loader_log(ptr_instance, VULKAN_LOADER_WARN_BIT, 0,
"terminator_CreateInstance: Driver %s supports interface version %u but still exposes VkSurfacekHR"
" create/destroy entrypoints (Policy #LDP_DRIVER_8)",
ptr_instance->icd_tramp_list.scanned_list[i].lib_name,
ptr_instance->icd_tramp_list.scanned_list[i].interface_version);
}
// If we made it this far, at least one ICD was successful
one_icd_successful = true;
}
// For vkGetPhysicalDeviceProperties2, at least one ICD needs to support the extension for the
// instance to have it
if (ptr_instance->supports_get_dev_prop_2) {
bool at_least_one_supports = false;
icd_term = ptr_instance->icd_terms;
while (icd_term != NULL) {
if (icd_term->supports_get_dev_prop_2) {
at_least_one_supports = true;
break;
}
icd_term = icd_term->next;
}
if (!at_least_one_supports) {
ptr_instance->supports_get_dev_prop_2 = false;
}
}
// If no ICDs were added to instance list and res is unchanged from it's initial value, the loader was unable to
// find a suitable ICD.
if (VK_SUCCESS == res && (ptr_instance->icd_terms == NULL || !one_icd_successful)) {
res = VK_ERROR_INCOMPATIBLE_DRIVER;
}
out:
ptr_instance->create_terminator_invalid_extension = false;
if (VK_SUCCESS != res) {
if (VK_ERROR_EXTENSION_NOT_PRESENT == res) {
ptr_instance->create_terminator_invalid_extension = true;
}
while (NULL != ptr_instance->icd_terms) {
icd_term = ptr_instance->icd_terms;
ptr_instance->icd_terms = icd_term->next;
if (NULL != icd_term->instance) {
icd_term->dispatch.DestroyInstance(icd_term->instance, pAllocator);
}
loader_icd_destroy(ptr_instance, icd_term, pAllocator);
}
} else {
// Check for enabled extensions here to setup the loader structures so the loader knows what extensions
// it needs to worry about.
// We do it here and again above the layers in the trampoline function since the trampoline function
// may think different extensions are enabled than what's down here.
// This is why we don't clear inside of these function calls.
// The clearing should actually be handled by the overall memset of the pInstance structure in the
// trampoline.
wsi_create_instance(ptr_instance, pCreateInfo);
debug_utils_CreateInstance(ptr_instance, pCreateInfo);
extensions_create_instance(ptr_instance, pCreateInfo);
}
return res;
}
VKAPI_ATTR void VKAPI_CALL terminator_DestroyInstance(VkInstance instance, const VkAllocationCallbacks *pAllocator) {
struct loader_instance *ptr_instance = loader_instance(instance);
if (NULL == ptr_instance) {
return;
}
struct loader_icd_term *icd_terms = ptr_instance->icd_terms;
struct loader_icd_term *next_icd_term;
// 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:
if (prev)
prev->next = next->next;
else
loader.instances = next->next;
break;
}
prev = next;
next = next->next;
}
while (NULL != icd_terms) {
if (icd_terms->instance) {
icd_terms->dispatch.DestroyInstance(icd_terms->instance, pAllocator);
}
next_icd_term = icd_terms->next;
icd_terms->instance = VK_NULL_HANDLE;
loader_icd_destroy(ptr_instance, icd_terms, pAllocator);
icd_terms = next_icd_term;
}
loader_delete_layer_list_and_properties(ptr_instance, &ptr_instance->instance_layer_list);
loader_scanned_icd_clear(ptr_instance, &ptr_instance->icd_tramp_list);
loader_destroy_generic_list(ptr_instance, (struct loader_generic_list *)&ptr_instance->ext_list);
if (NULL != ptr_instance->phys_devs_term) {
for (uint32_t i = 0; i < ptr_instance->phys_dev_count_term; i++) {
loader_instance_heap_free(ptr_instance, ptr_instance->phys_devs_term[i]);
}
loader_instance_heap_free(ptr_instance, ptr_instance->phys_devs_term);
}
if (NULL != ptr_instance->phys_dev_groups_term) {
for (uint32_t i = 0; i < ptr_instance->phys_dev_group_count_term; i++) {
loader_instance_heap_free(ptr_instance, ptr_instance->phys_dev_groups_term[i]);
}
loader_instance_heap_free(ptr_instance, ptr_instance->phys_dev_groups_term);
}
loader_free_dev_ext_table(ptr_instance);
loader_free_phys_dev_ext_table(ptr_instance);
}
VKAPI_ATTR VkResult VKAPI_CALL terminator_CreateDevice(VkPhysicalDevice physicalDevice, const VkDeviceCreateInfo *pCreateInfo,
const VkAllocationCallbacks *pAllocator, VkDevice *pDevice) {
VkResult res = VK_SUCCESS;
struct loader_physical_device_term *phys_dev_term;
phys_dev_term = (struct loader_physical_device_term *)physicalDevice;
struct loader_icd_term *icd_term = phys_dev_term->this_icd_term;
struct loader_device *dev = (struct loader_device *)*pDevice;
PFN_vkCreateDevice fpCreateDevice = icd_term->dispatch.CreateDevice;
struct loader_extension_list icd_exts;
VkBaseOutStructure *caller_dgci_container = NULL;
VkDeviceGroupDeviceCreateInfoKHR *caller_dgci = NULL;
dev->phys_dev_term = phys_dev_term;
icd_exts.list = NULL;
if (fpCreateDevice == NULL) {
loader_log(icd_term->this_instance, VULKAN_LOADER_ERROR_BIT | VULKAN_LOADER_DRIVER_BIT, 0,
"terminator_CreateDevice: No vkCreateDevice command exposed by ICD %s", icd_term->scanned_icd->lib_name);
res = VK_ERROR_INITIALIZATION_FAILED;
goto out;
}
VkDeviceCreateInfo localCreateInfo;
memcpy(&localCreateInfo, pCreateInfo, sizeof(localCreateInfo));
// NOTE: Need to filter the extensions to only those supported by the ICD.
// No ICD will advertise support for layers. An ICD library could support a layer,
// but it would be independent of the actual ICD, just in the same library.
char **filtered_extension_names = NULL;
if (0 < pCreateInfo->enabledExtensionCount) {
filtered_extension_names = loader_stack_alloc(pCreateInfo->enabledExtensionCount * sizeof(char *));
if (NULL == filtered_extension_names) {
loader_log(icd_term->this_instance, VULKAN_LOADER_ERROR_BIT, 0,
"terminator_CreateDevice: Failed to create extension name storage for %d extensions",
pCreateInfo->enabledExtensionCount);
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
}
localCreateInfo.enabledLayerCount = 0;
localCreateInfo.ppEnabledLayerNames = NULL;
localCreateInfo.enabledExtensionCount = 0;
localCreateInfo.ppEnabledExtensionNames = (const char *const *)filtered_extension_names;
// Get the physical device (ICD) extensions
res = loader_init_generic_list(icd_term->this_instance, (struct loader_generic_list *)&icd_exts, sizeof(VkExtensionProperties));
if (VK_SUCCESS != res) {
goto out;
}
res = loader_add_device_extensions(icd_term->this_instance, icd_term->dispatch.EnumerateDeviceExtensionProperties,
phys_dev_term->phys_dev, icd_term->scanned_icd->lib_name, &icd_exts);
if (res != VK_SUCCESS) {
goto out;
}
for (uint32_t i = 0; i < pCreateInfo->enabledExtensionCount; i++) {
const char *extension_name = pCreateInfo->ppEnabledExtensionNames[i];
VkExtensionProperties *prop = get_extension_property(extension_name, &icd_exts);
if (prop) {
filtered_extension_names[localCreateInfo.enabledExtensionCount] = (char *)extension_name;
localCreateInfo.enabledExtensionCount++;
} else {
loader_log(icd_term->this_instance, VULKAN_LOADER_DEBUG_BIT | VULKAN_LOADER_DRIVER_BIT, 0,
"vkCreateDevice extension %s not available for devices associated with ICD %s", extension_name,
icd_term->scanned_icd->lib_name);
}
}
// Before we continue, If KHX_device_group is the list of enabled and viable extensions, then we then need to look for the
// corresponding VkDeviceGroupDeviceCreateInfo struct in the device list and replace all the physical device values (which
// are really loader physical device terminator values) with the ICD versions.
// if (icd_term->this_instance->enabled_known_extensions.khr_device_group_creation == 1) {
{
VkBaseOutStructure *pNext = (VkBaseOutStructure *)localCreateInfo.pNext;
VkBaseOutStructure *pPrev = (VkBaseOutStructure *)&localCreateInfo;
while (NULL != pNext) {
if (VK_STRUCTURE_TYPE_DEVICE_GROUP_DEVICE_CREATE_INFO == pNext->sType) {
VkDeviceGroupDeviceCreateInfo *cur_struct = (VkDeviceGroupDeviceCreateInfo *)pNext;
if (0 < cur_struct->physicalDeviceCount && NULL != cur_struct->pPhysicalDevices) {
VkDeviceGroupDeviceCreateInfo *temp_struct = loader_stack_alloc(sizeof(VkDeviceGroupDeviceCreateInfo));
VkPhysicalDevice *phys_dev_array = NULL;
if (NULL == temp_struct) {
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
memcpy(temp_struct, cur_struct, sizeof(VkDeviceGroupDeviceCreateInfo));
phys_dev_array = loader_stack_alloc(sizeof(VkPhysicalDevice) * cur_struct->physicalDeviceCount);
if (NULL == phys_dev_array) {
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
// Before calling down, replace the incoming physical device values (which are really loader terminator
// physical devices) with the ICDs physical device values.
struct loader_physical_device_term *cur_term;
for (uint32_t phys_dev = 0; phys_dev < cur_struct->physicalDeviceCount; phys_dev++) {
cur_term = (struct loader_physical_device_term *)cur_struct->pPhysicalDevices[phys_dev];
phys_dev_array[phys_dev] = cur_term->phys_dev;
}
temp_struct->pPhysicalDevices = phys_dev_array;
// Keep track of pointers to restore pNext chain before returning
caller_dgci_container = pPrev;
caller_dgci = cur_struct;
// Replace the old struct in the pNext chain with this one.
pPrev->pNext = (VkBaseOutStructure *)temp_struct;
}
break;
}
pPrev = pNext;
pNext = pNext->pNext;
}
}
// Handle loader emulation for structs that are not supported by the ICD:
// Presently, the emulation leaves the pNext chain alone. This means that the ICD will receive items in the chain which
// are not recognized by the ICD. If this causes the ICD to fail, then the items would have to be removed here. The current
// implementation does not remove them because copying the pNext chain would be impossible if the loader does not recognize
// the any of the struct types, as the loader would not know the size to allocate and copy.
// if (icd_term->dispatch.GetPhysicalDeviceFeatures2 == NULL && icd_term->dispatch.GetPhysicalDeviceFeatures2KHR == NULL) {
{
const void *pNext = localCreateInfo.pNext;
while (pNext != NULL) {
switch (*(VkStructureType *)pNext) {
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2: {
const VkPhysicalDeviceFeatures2KHR *features = pNext;
if (icd_term->dispatch.GetPhysicalDeviceFeatures2 == NULL &&
icd_term->dispatch.GetPhysicalDeviceFeatures2KHR == NULL) {
loader_log(icd_term->this_instance, VULKAN_LOADER_INFO_BIT, 0,
"vkCreateDevice: Emulating handling of VkPhysicalDeviceFeatures2 in pNext chain for ICD \"%s\"",
icd_term->scanned_icd->lib_name);
// Verify that VK_KHR_get_physical_device_properties2 is enabled
if (icd_term->this_instance->enabled_known_extensions.khr_get_physical_device_properties2) {
localCreateInfo.pEnabledFeatures = &features->features;
}
}
// Leave this item in the pNext chain for now
pNext = features->pNext;
break;
}
case VK_STRUCTURE_TYPE_DEVICE_GROUP_DEVICE_CREATE_INFO: {
const VkDeviceGroupDeviceCreateInfoKHR *group_info = pNext;
if (icd_term->dispatch.EnumeratePhysicalDeviceGroups == NULL &&
icd_term->dispatch.EnumeratePhysicalDeviceGroupsKHR == NULL) {
loader_log(icd_term->this_instance, VULKAN_LOADER_INFO_BIT, 0,
"vkCreateDevice: Emulating handling of VkPhysicalDeviceGroupProperties in pNext chain for "
"ICD \"%s\"",
icd_term->scanned_icd->lib_name);
// The group must contain only this one device, since physical device groups aren't actually supported
if (group_info->physicalDeviceCount != 1) {
loader_log(icd_term->this_instance, VULKAN_LOADER_ERROR_BIT, 0,
"vkCreateDevice: Emulation failed to create device from device group info");
res = VK_ERROR_INITIALIZATION_FAILED;
goto out;
}
}
// Nothing needs to be done here because we're leaving the item in the pNext chain and because the spec
// states that the physicalDevice argument must be included in the device group, and we've already checked
// that it is
pNext = group_info->pNext;
break;
}
// Multiview properties are also allowed, but since VK_KHX_multiview is a device extension, we'll just let the
// ICD handle that error when the user enables the extension here
default: {
const VkBaseInStructure *header = pNext;
pNext = header->pNext;
break;
}
}
}
}
// Every extension that has a loader-defined terminator needs to be marked as enabled or disabled so that we know whether or
// not to return that terminator when vkGetDeviceProcAddr is called
for (uint32_t i = 0; i < localCreateInfo.enabledExtensionCount; ++i) {
if (!strcmp(localCreateInfo.ppEnabledExtensionNames[i], VK_KHR_SWAPCHAIN_EXTENSION_NAME)) {
dev->extensions.khr_swapchain_enabled = true;
} else if (!strcmp(localCreateInfo.ppEnabledExtensionNames[i], VK_KHR_DISPLAY_SWAPCHAIN_EXTENSION_NAME)) {
dev->extensions.khr_display_swapchain_enabled = true;
} else if (!strcmp(localCreateInfo.ppEnabledExtensionNames[i], VK_KHR_DEVICE_GROUP_EXTENSION_NAME)) {
dev->extensions.khr_device_group_enabled = true;
} else if (!strcmp(localCreateInfo.ppEnabledExtensionNames[i], VK_EXT_DEBUG_MARKER_EXTENSION_NAME)) {
dev->extensions.ext_debug_marker_enabled = true;
} else if (!strcmp(localCreateInfo.ppEnabledExtensionNames[i], "VK_EXT_full_screen_exclusive")) {
dev->extensions.ext_full_screen_exclusive_enabled = true;
}
}
dev->extensions.ext_debug_utils_enabled = icd_term->this_instance->enabled_known_extensions.ext_debug_utils;
if (!dev->extensions.khr_device_group_enabled) {
VkPhysicalDeviceProperties properties;
icd_term->dispatch.GetPhysicalDeviceProperties(phys_dev_term->phys_dev, &properties);
if (properties.apiVersion >= VK_API_VERSION_1_1) {
dev->extensions.khr_device_group_enabled = true;
}
}
res = fpCreateDevice(phys_dev_term->phys_dev, &localCreateInfo, pAllocator, &dev->icd_device);
if (res != VK_SUCCESS) {
loader_log(icd_term->this_instance, VULKAN_LOADER_ERROR_BIT | VULKAN_LOADER_DRIVER_BIT, 0,
"terminator_CreateDevice: Failed in ICD %s vkCreateDevice call", icd_term->scanned_icd->lib_name);
goto out;
}
*pDevice = dev->icd_device;
loader_add_logical_device(icd_term->this_instance, icd_term, dev);
// Init dispatch pointer in new device object
loader_init_dispatch(*pDevice, &dev->loader_dispatch);
out:
if (NULL != icd_exts.list) {
loader_destroy_generic_list(icd_term->this_instance, (struct loader_generic_list *)&icd_exts);
}
// Restore pNext pointer to old VkDeviceGroupDeviceCreateInfoKHX
// in the chain to maintain consistency for the caller.
if (caller_dgci_container != NULL) {
caller_dgci_container->pNext = (VkBaseOutStructure *)caller_dgci;
}
return res;
}
// Update the trampoline physical devices with the wrapped version.
// We always want to re-use previous physical device pointers since they may be used by an application
// after returning previously.
VkResult setup_loader_tramp_phys_devs(struct loader_instance *inst, uint32_t phys_dev_count, VkPhysicalDevice *phys_devs) {
VkResult res = VK_SUCCESS;
uint32_t cur_idx;
uint32_t new_idx;
uint32_t found_count = 0;
uint32_t old_count = inst->phys_dev_count_tramp;
uint32_t new_count = inst->total_gpu_count;
struct loader_physical_device_tramp **new_phys_devs = NULL;
if (0 == phys_dev_count) {
return VK_SUCCESS;
}
if (phys_dev_count > new_count) {
new_count = phys_dev_count;
}
// We want an old to new index array and a new to old index array
int32_t *old_to_new_index = (int32_t *)loader_stack_alloc(sizeof(int32_t) * old_count);
int32_t *new_to_old_index = (int32_t *)loader_stack_alloc(sizeof(int32_t) * new_count);
if (NULL == old_to_new_index || NULL == new_to_old_index) {
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
// Initialize both
for (cur_idx = 0; cur_idx < old_count; ++cur_idx) {
old_to_new_index[cur_idx] = -1;
}
for (cur_idx = 0; cur_idx < new_count; ++cur_idx) {
new_to_old_index[cur_idx] = -1;
}
// Figure out the old->new and new->old indices
for (cur_idx = 0; cur_idx < old_count; ++cur_idx) {
for (new_idx = 0; new_idx < phys_dev_count; ++new_idx) {
if (inst->phys_devs_tramp[cur_idx]->phys_dev == phys_devs[new_idx]) {
old_to_new_index[cur_idx] = (int32_t)new_idx;
new_to_old_index[new_idx] = (int32_t)cur_idx;
found_count++;
break;
}
}
}
// If we found exactly the number of items we were looking for as we had before. Then everything
// we already have is good enough and we just need to update the array that was passed in with
// the loader values.
if (found_count == phys_dev_count && 0 != old_count && old_count == new_count) {
for (new_idx = 0; new_idx < phys_dev_count; ++new_idx) {
for (cur_idx = 0; cur_idx < old_count; ++cur_idx) {
if (old_to_new_index[cur_idx] == (int32_t)new_idx) {
phys_devs[new_idx] = (VkPhysicalDevice)inst->phys_devs_tramp[cur_idx];
break;
}
}
}
// Nothing else to do for this path
return VK_SUCCESS;
} else {
// Something is different, so do the full path of checking every device and creating a new array to use.
// This can happen if a device was added, or removed, or we hadn't previously queried all the data and we
// have more to store.
new_phys_devs = loader_instance_heap_alloc(inst, sizeof(struct loader_physical_device_tramp *) * new_count,
VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (NULL == new_phys_devs) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_tramp_phys_devs: Failed to allocate new physical device array of size %d", new_count);
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
memset(new_phys_devs, 0, sizeof(struct loader_physical_device_tramp *) * new_count);
if (new_count > phys_dev_count) {
found_count = phys_dev_count;
} else {
found_count = new_count;
}
// First try to see if an old item exists that matches the new item. If so, just copy it over.
for (new_idx = 0; new_idx < found_count; ++new_idx) {
bool old_item_found = false;
for (cur_idx = 0; cur_idx < old_count; ++cur_idx) {
if (old_to_new_index[cur_idx] == (int32_t)new_idx) {
// Copy over old item to correct spot in the new array
new_phys_devs[new_idx] = inst->phys_devs_tramp[cur_idx];
inst->phys_devs_tramp[cur_idx] = NULL;
old_item_found = true;
break;
}
}
// Something wasn't found, so it's new so add it to the new list
if (!old_item_found) {
new_phys_devs[new_idx] = loader_instance_heap_alloc(inst, sizeof(struct loader_physical_device_tramp),
VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (NULL == new_phys_devs[new_idx]) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_tramp_phys_devs: Failed to allocate new trampoline physical device");
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
// Initialize the new physicalDevice object
loader_set_dispatch((void *)new_phys_devs[new_idx], inst->disp);
new_phys_devs[new_idx]->this_instance = inst;
new_phys_devs[new_idx]->phys_dev = phys_devs[new_idx];
new_phys_devs[new_idx]->magic = PHYS_TRAMP_MAGIC_NUMBER;
}
phys_devs[new_idx] = (VkPhysicalDevice)new_phys_devs[new_idx];
}
// We usually get here if the user array is smaller than the total number of devices, so copy the
// remaining devices we have over to the new array.
uint32_t start = found_count;
for (new_idx = start; new_idx < new_count; ++new_idx) {
for (cur_idx = 0; cur_idx < old_count; ++cur_idx) {
if (old_to_new_index[cur_idx] == -1) {
new_phys_devs[new_idx] = inst->phys_devs_tramp[cur_idx];
inst->phys_devs_tramp[cur_idx] = NULL;
old_to_new_index[cur_idx] = new_idx;
found_count++;
break;
}
}
}
}
out:
if (VK_SUCCESS != res) {
if (NULL != new_phys_devs) {
for (new_idx = 0; new_idx < found_count; ++new_idx) {
// If an OOM occurred inside the copying of the new physical devices into the existing array
// will leave some of the old physical devices in the array which may have been copied into
// the new array, leading to them being freed twice. To avoid this we just make sure to not
// delete physical devices which were copied.
bool found = false;
for (cur_idx = 0; cur_idx < inst->phys_dev_count_tramp; cur_idx++) {
if (new_phys_devs[new_idx] == inst->phys_devs_tramp[cur_idx]) {
found = true;
break;
}
}
if (!found) {
loader_instance_heap_free(inst, new_phys_devs[new_idx]);
}
}
loader_instance_heap_free(inst, new_phys_devs);
}
inst->total_gpu_count = 0;
} else {
if (new_count > inst->total_gpu_count) {
inst->total_gpu_count = new_count;
}
// Look for any items that were not used this time.
if (NULL != inst->phys_devs_tramp) {
for (cur_idx = 0; cur_idx < inst->phys_dev_count_tramp; ++cur_idx) {
if (NULL != inst->phys_devs_tramp[cur_idx]) {
loader_instance_heap_free(inst, inst->phys_devs_tramp[cur_idx]);
break;
}
}
loader_instance_heap_free(inst, inst->phys_devs_tramp);
}
inst->phys_devs_tramp = new_phys_devs;
inst->phys_dev_count_tramp = found_count;
}
return res;
}
#ifdef LOADER_ENABLE_LINUX_SORT
bool is_linux_sort_enabled(struct loader_instance *inst) {
bool sort_items = inst->supports_get_dev_prop_2;
char *env_value = loader_getenv("VK_LOADER_DISABLE_SELECT", inst);
if (NULL != env_value) {
int32_t int_env_val = atoi(env_value);
loader_free_getenv(env_value, inst);
if (int_env_val != 0) {
sort_items = false;
}
}
return sort_items;
}
#endif // LOADER_ENABLE_LINUX_SORT
VkResult setup_loader_term_phys_devs(struct loader_instance *inst) {
VkResult res = VK_SUCCESS;
struct loader_icd_term *icd_term;
struct loader_phys_dev_per_icd *icd_phys_dev_array = NULL;
struct loader_physical_device_term **new_phys_devs = NULL;
struct LoaderSortedPhysicalDevice *sorted_phys_dev_array = NULL;
uint32_t icd_idx = 0;
uint32_t sorted_count = 0;
inst->total_gpu_count = 0;
// Allocate something to store the physical device characteristics
// that we read from each ICD.
icd_phys_dev_array =
(struct loader_phys_dev_per_icd *)loader_stack_alloc(sizeof(struct loader_phys_dev_per_icd) * inst->total_icd_count);
if (NULL == icd_phys_dev_array) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_term_phys_devs: Failed to allocate temporary ICD Physical device info array of size %d",
inst->total_icd_count);
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
memset(icd_phys_dev_array, 0, sizeof(struct loader_phys_dev_per_icd) * inst->total_icd_count);
#if defined(_WIN32)
// Get the physical devices supported by platform sorting mechanism into a separate list
res = windows_read_sorted_physical_devices(inst, &sorted_phys_dev_array, &sorted_count);
if (VK_SUCCESS != res) {
goto out;
}
#endif
// For each ICD, query the number of physical devices, and then get an
// internal value for those physical devices.
icd_term = inst->icd_terms;
while (NULL != icd_term) {
// This is the legacy behavior which should be skipped if EnumerateAdapterPhysicalDevices is available
// and we successfully enumerated sorted adapters using windows_read_sorted_physical_devices.
#if defined(VK_USE_PLATFORM_WIN32_KHR)
if (sorted_count && icd_term->scanned_icd->EnumerateAdapterPhysicalDevices != NULL) {
icd_term = icd_term->next;
continue;
}
#endif
res = icd_term->dispatch.EnumeratePhysicalDevices(icd_term->instance, &icd_phys_dev_array[icd_idx].count, NULL);
if (VK_SUCCESS != res) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_term_phys_devs: Call to ICD %d's \'vkEnumeratePhysicalDevices\' failed with error 0x%08x",
icd_idx, res);
goto out;
}
icd_phys_dev_array[icd_idx].phys_devs =
(VkPhysicalDevice *)loader_stack_alloc(icd_phys_dev_array[icd_idx].count * sizeof(VkPhysicalDevice));
if (NULL == icd_phys_dev_array[icd_idx].phys_devs) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_term_phys_devs: Failed to allocate temporary ICD Physical device array for ICD %d of size %d",
icd_idx, inst->total_gpu_count);
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
res = icd_term->dispatch.EnumeratePhysicalDevices(icd_term->instance, &(icd_phys_dev_array[icd_idx].count),
icd_phys_dev_array[icd_idx].phys_devs);
if (VK_SUCCESS != res) {
goto out;
}
inst->total_gpu_count += icd_phys_dev_array[icd_idx].count;
icd_phys_dev_array[icd_idx].this_icd_term = icd_term;
icd_term = icd_term->next;
++icd_idx;
}
if (0 == inst->total_gpu_count) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_term_phys_devs: Failed to detect any valid GPUs in the current config");
res = VK_ERROR_INITIALIZATION_FAILED;
goto out;
}
new_phys_devs = loader_instance_heap_alloc(inst, sizeof(struct loader_physical_device_term *) * inst->total_gpu_count,
VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (NULL == new_phys_devs) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_term_phys_devs: Failed to allocate new physical device array of size %d", inst->total_gpu_count);
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
memset(new_phys_devs, 0, sizeof(struct loader_physical_device_term *) * inst->total_gpu_count);
#ifdef LOADER_ENABLE_LINUX_SORT
if (is_linux_sort_enabled(inst)) {
for (uint32_t dev = 0; dev < inst->total_gpu_count; ++dev) {
new_phys_devs[dev] =
loader_instance_heap_alloc(inst, sizeof(struct loader_physical_device_term), VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (NULL == new_phys_devs[dev]) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_term_phys_devs: Failed to allocate physical device terminator object %d", dev);
inst->total_gpu_count = dev;
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
}
// Get the physical devices supported by platform sorting mechanism into a separate list
res = linux_read_sorted_physical_devices(inst, icd_idx, icd_phys_dev_array, new_phys_devs);
// Keep previously allocated physical device info since apps may already be using that!
for (uint32_t new_idx = 0; new_idx < inst->total_gpu_count; new_idx++) {
for (uint32_t old_idx = 0; old_idx < inst->phys_dev_count_term; old_idx++) {
if (new_phys_devs[new_idx]->phys_dev == inst->phys_devs_term[old_idx]->phys_dev) {
loader_log(inst, VULKAN_LOADER_INFO_BIT | VULKAN_LOADER_DRIVER_BIT, 0,
"Copying old device %u into new device %u", old_idx, new_idx);
// Free the old new_phys_devs info since we're not using it before we assign the new info
loader_instance_heap_free(inst, new_phys_devs[new_idx]);
new_phys_devs[new_idx] = inst->phys_devs_term[old_idx];
break;
}
}
}
goto out;
}
#endif // LOADER_ENABLE_LINUX_SORT
// Copy or create everything to fill the new array of physical devices
uint32_t idx = 0;
#if defined(_WIN32)
// Copy over everything found through sorted enumeration
for (uint32_t i = 0; i < sorted_count; ++i) {
for (uint32_t j = 0; j < sorted_phys_dev_array[i].device_count; ++j) {
// Check if this physical device is already in the old buffer
if (NULL != inst->phys_devs_term) {
for (uint32_t old_idx = 0; old_idx < inst->phys_dev_count_term; old_idx++) {
if (sorted_phys_dev_array[i].physical_devices[j] == inst->phys_devs_term[old_idx]->phys_dev) {
new_phys_devs[idx] = inst->phys_devs_term[old_idx];
break;
}
}
}
// If this physical device isn't in the old buffer, then we need to create it.
if (NULL == new_phys_devs[idx]) {
new_phys_devs[idx] = loader_instance_heap_alloc(inst, sizeof(struct loader_physical_device_term),
VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (NULL == new_phys_devs[idx]) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_term_phys_devs: Failed to allocate physical device terminator object %d", idx);
inst->total_gpu_count = idx;
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
loader_set_dispatch((void *)new_phys_devs[idx], inst->disp);
new_phys_devs[idx]->this_icd_term = sorted_phys_dev_array[i].icd_term;
new_phys_devs[idx]->icd_index = (uint8_t)(sorted_phys_dev_array[i].icd_index);
new_phys_devs[idx]->phys_dev = sorted_phys_dev_array[i].physical_devices[j];
}
// Increment the count of new physical devices
idx++;
}
}
#endif
// Copy over everything found through EnumeratePhysicalDevices
for (icd_idx = 0; icd_idx < inst->total_icd_count; icd_idx++) {
for (uint32_t pd_idx = 0; pd_idx < icd_phys_dev_array[icd_idx].count; pd_idx++) {
// Check if this physical device is already in the old buffer
if (NULL != inst->phys_devs_term) {
for (uint32_t old_idx = 0; old_idx < inst->phys_dev_count_term; old_idx++) {
if (icd_phys_dev_array[icd_idx].phys_devs[pd_idx] == inst->phys_devs_term[old_idx]->phys_dev) {
new_phys_devs[idx] = inst->phys_devs_term[old_idx];
break;
}
}
}
// If this physical device isn't in the old buffer, then we
// need to create it.
if (NULL == new_phys_devs[idx]) {
new_phys_devs[idx] = loader_instance_heap_alloc(inst, sizeof(struct loader_physical_device_term),
VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (NULL == new_phys_devs[idx]) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_term_phys_devs: Failed to allocate physical device terminator object %d", idx);
inst->total_gpu_count = idx;
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
loader_set_dispatch((void *)new_phys_devs[idx], inst->disp);
new_phys_devs[idx]->this_icd_term = icd_phys_dev_array[icd_idx].this_icd_term;
new_phys_devs[idx]->icd_index = (uint8_t)(icd_idx);
new_phys_devs[idx]->phys_dev = icd_phys_dev_array[icd_idx].phys_devs[pd_idx];
}
idx++;
}
}
out:
if (VK_SUCCESS != res) {
if (NULL != new_phys_devs) {
// We've encountered an error, so we should free the new buffers.
for (uint32_t i = 0; i < inst->total_gpu_count; i++) {
// If an OOM occurred inside the copying of the new physical devices into the existing array
// will leave some of the old physical devices in the array which may have been copied into
// the new array, leading to them being freed twice. To avoid this we just make sure to not
// delete physical devices which were copied.
bool found = false;
if (NULL != inst->phys_devs_term) {
for (uint32_t old_idx = 0; old_idx < inst->phys_dev_count_term; old_idx++) {
if (new_phys_devs[i] == inst->phys_devs_term[old_idx]) {
found = true;
break;
}
}
}
if (!found) {
loader_instance_heap_free(inst, new_phys_devs[i]);
}
}
loader_instance_heap_free(inst, new_phys_devs);
}
inst->total_gpu_count = 0;
} else {
// Free everything that didn't carry over to the new array of
// physical devices. Everything else will have been copied over
// to the new array.
if (NULL != inst->phys_devs_term) {
for (uint32_t cur_pd = 0; cur_pd < inst->phys_dev_count_term; cur_pd++) {
bool found = false;
for (uint32_t new_pd_idx = 0; new_pd_idx < inst->total_gpu_count; new_pd_idx++) {
if (inst->phys_devs_term[cur_pd] == new_phys_devs[new_pd_idx]) {
found = true;
break;
}
}
if (!found) {
loader_instance_heap_free(inst, inst->phys_devs_term[cur_pd]);
}
}
loader_instance_heap_free(inst, inst->phys_devs_term);
}
// Swap out old and new devices list
inst->phys_dev_count_term = inst->total_gpu_count;
inst->phys_devs_term = new_phys_devs;
}
if (sorted_phys_dev_array != NULL) {
for (uint32_t i = 0; i < sorted_count; ++i) {
if (sorted_phys_dev_array[i].device_count > 0 && sorted_phys_dev_array[i].physical_devices != NULL) {
loader_instance_heap_free(inst, sorted_phys_dev_array[i].physical_devices);
}
}
loader_instance_heap_free(inst, sorted_phys_dev_array);
}
return res;
}
VkResult setup_loader_tramp_phys_dev_groups(struct loader_instance *inst, uint32_t group_count,
VkPhysicalDeviceGroupProperties *groups) {
VkResult res = VK_SUCCESS;
uint32_t cur_idx;
uint32_t dev_idx;
if (0 == group_count) {
return VK_SUCCESS;
}
// Generate a list of all the devices and convert them to the loader ID
uint32_t phys_dev_count = 0;
for (cur_idx = 0; cur_idx < group_count; ++cur_idx) {
phys_dev_count += groups[cur_idx].physicalDeviceCount;
}
VkPhysicalDevice *devices = (VkPhysicalDevice *)loader_stack_alloc(sizeof(VkPhysicalDevice) * phys_dev_count);
if (NULL == devices) {
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
uint32_t cur_device = 0;
for (cur_idx = 0; cur_idx < group_count; ++cur_idx) {
for (dev_idx = 0; dev_idx < groups[cur_idx].physicalDeviceCount; ++dev_idx) {
devices[cur_device++] = groups[cur_idx].physicalDevices[dev_idx];
}
}
// Update the devices based on the loader physical device values.
res = setup_loader_tramp_phys_devs(inst, phys_dev_count, devices);
if (VK_SUCCESS != res) {
return res;
}
// Update the devices in the group structures now
cur_device = 0;
for (cur_idx = 0; cur_idx < group_count; ++cur_idx) {
for (dev_idx = 0; dev_idx < groups[cur_idx].physicalDeviceCount; ++dev_idx) {
groups[cur_idx].physicalDevices[dev_idx] = devices[cur_device++];
}
}
return res;
}
VKAPI_ATTR VkResult VKAPI_CALL terminator_EnumeratePhysicalDevices(VkInstance instance, uint32_t *pPhysicalDeviceCount,
VkPhysicalDevice *pPhysicalDevices) {
struct loader_instance *inst = (struct loader_instance *)instance;
VkResult res = VK_SUCCESS;
// Always call the setup loader terminator physical devices because they may
// have changed at any point.
res = setup_loader_term_phys_devs(inst);
if (VK_SUCCESS != res) {
goto out;
}
uint32_t copy_count = inst->total_gpu_count;
if (NULL != pPhysicalDevices) {
if (copy_count > *pPhysicalDeviceCount) {
copy_count = *pPhysicalDeviceCount;
res = VK_INCOMPLETE;
}
for (uint32_t i = 0; i < copy_count; i++) {
pPhysicalDevices[i] = (VkPhysicalDevice)inst->phys_devs_term[i];
}
}
*pPhysicalDeviceCount = copy_count;
out:
return res;
}
VKAPI_ATTR VkResult VKAPI_CALL terminator_EnumerateDeviceExtensionProperties(VkPhysicalDevice physicalDevice,
const char *pLayerName, uint32_t *pPropertyCount,
VkExtensionProperties *pProperties) {
struct loader_physical_device_term *phys_dev_term;
struct loader_layer_list implicit_layer_list = {0};
struct loader_extension_list all_exts = {0};
struct loader_extension_list icd_exts = {0};
// Any layer or trampoline wrapping should be removed at this point in time can just cast to the expected
// type for VkPhysicalDevice.
phys_dev_term = (struct loader_physical_device_term *)physicalDevice;
// if we got here with a non-empty pLayerName, look up the extensions
// from the json
if (pLayerName != NULL && strlen(pLayerName) > 0) {
uint32_t count;
uint32_t copy_size;
const struct loader_instance *inst = phys_dev_term->this_icd_term->this_instance;
struct loader_device_extension_list *dev_ext_list = NULL;
struct loader_device_extension_list local_ext_list;
memset(&local_ext_list, 0, sizeof(local_ext_list));
if (vk_string_validate(MaxLoaderStringLength, pLayerName) == VK_STRING_ERROR_NONE) {
for (uint32_t i = 0; i < inst->instance_layer_list.count; i++) {
struct loader_layer_properties *props = &inst->instance_layer_list.list[i];
if (strcmp(props->info.layerName, pLayerName) == 0) {
dev_ext_list = &props->device_extension_list;
}
}
count = (dev_ext_list == NULL) ? 0 : dev_ext_list->count;
if (pProperties == NULL) {
*pPropertyCount = count;
loader_destroy_generic_list(inst, (struct loader_generic_list *)&local_ext_list);
return VK_SUCCESS;
}
copy_size = *pPropertyCount < count ? *pPropertyCount : count;
for (uint32_t i = 0; i < copy_size; i++) {
memcpy(&pProperties[i], &dev_ext_list->list[i].props, sizeof(VkExtensionProperties));
}
*pPropertyCount = copy_size;
loader_destroy_generic_list(inst, (struct loader_generic_list *)&local_ext_list);
if (copy_size < count) {
return VK_INCOMPLETE;
}
} else {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"vkEnumerateDeviceExtensionProperties: pLayerName is too long or is badly formed");
return VK_ERROR_EXTENSION_NOT_PRESENT;
}
return VK_SUCCESS;
}
// This case is during the call down the instance chain with pLayerName == NULL
struct loader_icd_term *icd_term = phys_dev_term->this_icd_term;
uint32_t icd_ext_count = *pPropertyCount;
VkExtensionProperties *icd_props_list = pProperties;
VkResult res;
if (NULL == icd_props_list) {
// We need to find the count without duplicates. This requires querying the driver for the names of the extensions.
// A small amount of storage is then needed to facilitate the de-duplication.
res = icd_term->dispatch.EnumerateDeviceExtensionProperties(phys_dev_term->phys_dev, NULL, &icd_ext_count, NULL);
if (res != VK_SUCCESS) {
goto out;
}
if (icd_ext_count > 0) {
icd_props_list = loader_instance_heap_alloc(icd_term->this_instance, sizeof(VkExtensionProperties) * icd_ext_count,
VK_SYSTEM_ALLOCATION_SCOPE_COMMAND);
if (NULL == icd_props_list) {
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
}
}
// Get the available device extension count, and if pProperties is not NULL, the extensions as well
res = icd_term->dispatch.EnumerateDeviceExtensionProperties(phys_dev_term->phys_dev, NULL, &icd_ext_count, icd_props_list);
if (res != VK_SUCCESS) {
goto out;
}
if (!loader_init_layer_list(icd_term->this_instance, &implicit_layer_list)) {
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
loader_add_implicit_layers(icd_term->this_instance, &implicit_layer_list, NULL, &icd_term->this_instance->instance_layer_list);
// Initialize dev_extension list within the physicalDevice object
res = loader_init_device_extensions(icd_term->this_instance, phys_dev_term, icd_ext_count, icd_props_list, &icd_exts);
if (res != VK_SUCCESS) {
goto out;
}
// We need to determine which implicit layers are active, and then add their extensions. This can't be cached as
// it depends on results of environment variables (which can change).
res = loader_add_to_ext_list(icd_term->this_instance, &all_exts, icd_exts.count, icd_exts.list);
if (res != VK_SUCCESS) {
goto out;
}
loader_add_implicit_layers(icd_term->this_instance, &implicit_layer_list, NULL, &icd_term->this_instance->instance_layer_list);
for (uint32_t i = 0; i < implicit_layer_list.count; i++) {
for (uint32_t j = 0; j < implicit_layer_list.list[i].device_extension_list.count; j++) {
res = loader_add_to_ext_list(icd_term->this_instance, &all_exts, 1,
&implicit_layer_list.list[i].device_extension_list.list[j].props);
if (res != VK_SUCCESS) {
goto out;
}
}
}
uint32_t capacity = *pPropertyCount;
VkExtensionProperties *props = pProperties;
res = VK_SUCCESS;
if (NULL != pProperties) {
for (uint32_t i = 0; i < all_exts.count && i < capacity; i++) {
props[i] = all_exts.list[i];
}
// Wasn't enough space for the extensions, we did partial copy now return VK_INCOMPLETE
if (capacity < all_exts.count) {
res = VK_INCOMPLETE;
} else {
*pPropertyCount = all_exts.count;
}
} else {
*pPropertyCount = all_exts.count;
}
out:
if (NULL != implicit_layer_list.list) {
loader_destroy_generic_list(icd_term->this_instance, (struct loader_generic_list *)&implicit_layer_list);
}
if (NULL != all_exts.list) {
loader_destroy_generic_list(icd_term->this_instance, (struct loader_generic_list *)&all_exts);
}
if (NULL != icd_exts.list) {
loader_destroy_generic_list(icd_term->this_instance, (struct loader_generic_list *)&icd_exts);
}
if (NULL == pProperties && NULL != icd_props_list) {
loader_instance_heap_free(icd_term->this_instance, icd_props_list);
}
return res;
}
VkStringErrorFlags vk_string_validate(const int max_length, const char *utf8) {
VkStringErrorFlags result = VK_STRING_ERROR_NONE;
int num_char_bytes = 0;
int i, j;
if (utf8 == NULL) {
return VK_STRING_ERROR_NULL_PTR;
}
for (i = 0; i <= max_length; i++) {
if (utf8[i] == 0) {
break;
} else if (i == max_length) {
result |= VK_STRING_ERROR_LENGTH;
break;
} else if ((utf8[i] >= 0x20) && (utf8[i] < 0x7f)) {
num_char_bytes = 0;
} else if ((utf8[i] & UTF8_ONE_BYTE_MASK) == UTF8_ONE_BYTE_CODE) {
num_char_bytes = 1;
} else if ((utf8[i] & UTF8_TWO_BYTE_MASK) == UTF8_TWO_BYTE_CODE) {
num_char_bytes = 2;
} else if ((utf8[i] & UTF8_THREE_BYTE_MASK) == UTF8_THREE_BYTE_CODE) {
num_char_bytes = 3;
} else {
result = VK_STRING_ERROR_BAD_DATA;
}
// Validate the following num_char_bytes of data
for (j = 0; (j < num_char_bytes) && (i < max_length); j++) {
if (++i == max_length) {
result |= VK_STRING_ERROR_LENGTH;
break;
}
if ((utf8[i] & UTF8_DATA_BYTE_MASK) != UTF8_DATA_BYTE_CODE) {
result |= VK_STRING_ERROR_BAD_DATA;
}
}
}
return result;
}
VKAPI_ATTR VkResult VKAPI_CALL terminator_EnumerateInstanceVersion(const VkEnumerateInstanceVersionChain *chain,
uint32_t *pApiVersion) {
// NOTE: The Vulkan WG doesn't want us checking pApiVersion for NULL, but instead
// prefers us crashing.
*pApiVersion = VK_HEADER_VERSION_COMPLETE;
return VK_SUCCESS;
}
VKAPI_ATTR VkResult VKAPI_CALL
terminator_EnumerateInstanceExtensionProperties(const VkEnumerateInstanceExtensionPropertiesChain *chain, const char *pLayerName,
uint32_t *pPropertyCount, VkExtensionProperties *pProperties) {
struct loader_extension_list *global_ext_list = NULL;
struct loader_layer_list instance_layers;
struct loader_extension_list local_ext_list;
struct loader_icd_tramp_list icd_tramp_list;
uint32_t copy_size;
VkResult res = VK_SUCCESS;
memset(&local_ext_list, 0, sizeof(local_ext_list));
memset(&instance_layers, 0, sizeof(instance_layers));
memset(&icd_tramp_list, 0, sizeof(icd_tramp_list));
// Get layer libraries if needed
if (pLayerName && strlen(pLayerName) != 0) {
if (vk_string_validate(MaxLoaderStringLength, pLayerName) != VK_STRING_ERROR_NONE) {
assert(VK_FALSE && "vkEnumerateInstanceExtensionProperties: pLayerName is too long or is badly formed");
res = VK_ERROR_EXTENSION_NOT_PRESENT;
goto out;
}
loader_scan_for_layers(NULL, &instance_layers);
for (uint32_t i = 0; i < instance_layers.count; i++) {
struct loader_layer_properties *props = &instance_layers.list[i];
if (strcmp(props->info.layerName, pLayerName) == 0) {
global_ext_list = &props->instance_extension_list;
break;
}
}
} else {
// Preload ICD libraries so subsequent calls to EnumerateInstanceExtensionProperties don't have to load them
loader_preload_icds();
// Scan/discover all ICD libraries
res = loader_icd_scan(NULL, &icd_tramp_list);
// EnumerateInstanceExtensionProperties can't return anything other than OOM or VK_ERROR_LAYER_NOT_PRESENT
if ((VK_SUCCESS != res && icd_tramp_list.count > 0) || res == VK_ERROR_OUT_OF_HOST_MEMORY) {
goto out;
}
// Get extensions from all ICD's, merge so no duplicates
res = loader_get_icd_loader_instance_extensions(NULL, &icd_tramp_list, &local_ext_list);
if (VK_SUCCESS != res) {
goto out;
}
loader_scanned_icd_clear(NULL, &icd_tramp_list);
// Append enabled implicit layers.
loader_scan_for_implicit_layers(NULL, &instance_layers);
for (uint32_t i = 0; i < instance_layers.count; i++) {
if (!loader_implicit_layer_is_enabled(NULL, &instance_layers.list[i])) {
continue;
}
struct loader_extension_list *ext_list = &instance_layers.list[i].instance_extension_list;
loader_add_to_ext_list(NULL, &local_ext_list, ext_list->count, ext_list->list);
}
global_ext_list = &local_ext_list;
}
if (global_ext_list == NULL) {
res = VK_ERROR_LAYER_NOT_PRESENT;
goto out;
}
if (pProperties == NULL) {
*pPropertyCount = global_ext_list->count;
goto out;
}
copy_size = *pPropertyCount < global_ext_list->count ? *pPropertyCount : global_ext_list->count;
for (uint32_t i = 0; i < copy_size; i++) {
memcpy(&pProperties[i], &global_ext_list->list[i], sizeof(VkExtensionProperties));
}
*pPropertyCount = copy_size;
if (copy_size < global_ext_list->count) {
res = VK_INCOMPLETE;
goto out;
}
out:
loader_destroy_generic_list(NULL, (struct loader_generic_list *)&icd_tramp_list);
loader_destroy_generic_list(NULL, (struct loader_generic_list *)&local_ext_list);
loader_delete_layer_list_and_properties(NULL, &instance_layers);
return res;
}
VKAPI_ATTR VkResult VKAPI_CALL terminator_EnumerateInstanceLayerProperties(const VkEnumerateInstanceLayerPropertiesChain *chain,
uint32_t *pPropertyCount,
VkLayerProperties *pProperties) {
VkResult result = VK_SUCCESS;
struct loader_layer_list instance_layer_list;
LOADER_PLATFORM_THREAD_ONCE(&once_init, loader_initialize);
uint32_t copy_size;
// Get layer libraries
memset(&instance_layer_list, 0, sizeof(instance_layer_list));
loader_scan_for_layers(NULL, &instance_layer_list);
if (pProperties == NULL) {
*pPropertyCount = instance_layer_list.count;
goto out;
}
copy_size = (*pPropertyCount < instance_layer_list.count) ? *pPropertyCount : instance_layer_list.count;
for (uint32_t i = 0; i < copy_size; i++) {
memcpy(&pProperties[i], &instance_layer_list.list[i].info, sizeof(VkLayerProperties));
}
*pPropertyCount = copy_size;
if (copy_size < instance_layer_list.count) {
result = VK_INCOMPLETE;
goto out;
}
out:
loader_delete_layer_list_and_properties(NULL, &instance_layer_list);
return result;
}
// ---- Vulkan Core 1.1 terminators
VKAPI_ATTR VkResult VKAPI_CALL terminator_EnumeratePhysicalDeviceGroups(
VkInstance instance, uint32_t *pPhysicalDeviceGroupCount, VkPhysicalDeviceGroupProperties *pPhysicalDeviceGroupProperties) {
struct loader_instance *inst = (struct loader_instance *)instance;
VkResult res = VK_SUCCESS;
struct loader_icd_term *icd_term;
uint32_t total_count = 0;
uint32_t cur_icd_group_count = 0;
VkPhysicalDeviceGroupPropertiesKHR **new_phys_dev_groups = NULL;
struct loader_physical_device_group_term *local_phys_dev_groups = NULL;
bool *local_phys_dev_group_sorted = NULL;
PFN_vkEnumeratePhysicalDeviceGroups fpEnumeratePhysicalDeviceGroups = NULL;
struct LoaderSortedPhysicalDevice *sorted_phys_dev_array = NULL;
uint32_t sorted_count = 0;
uint32_t icd_idx = 0;
// For each ICD, query the number of physical device groups, and then get an
// internal value for those physical devices.
icd_term = inst->icd_terms;
for (icd_idx = 0; NULL != icd_term; icd_term = icd_term->next, icd_idx++) {
// Get the function pointer to use to call into the ICD. This could be the core or KHR version
if (inst->enabled_known_extensions.khr_device_group_creation) {
fpEnumeratePhysicalDeviceGroups = icd_term->dispatch.EnumeratePhysicalDeviceGroupsKHR;
} else {
fpEnumeratePhysicalDeviceGroups = icd_term->dispatch.EnumeratePhysicalDeviceGroups;
}
cur_icd_group_count = 0;
if (NULL == fpEnumeratePhysicalDeviceGroups) {
// Treat each ICD's GPU as it's own group if the extension isn't supported
res = icd_term->dispatch.EnumeratePhysicalDevices(icd_term->instance, &cur_icd_group_count, NULL);
if (res != VK_SUCCESS) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_term_phys_dev_groups: Failed during dispatch call of "
"\'EnumeratePhysicalDevices\' to ICD %d to get plain phys dev count.",
icd_idx);
continue;
}
} else {
// Query the actual group info
res = fpEnumeratePhysicalDeviceGroups(icd_term->instance, &cur_icd_group_count, NULL);
if (res != VK_SUCCESS) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_term_phys_dev_groups: Failed during dispatch call of "
"\'EnumeratePhysicalDeviceGroups\' to ICD %d to get count.",
icd_idx);
continue;
}
}
total_count += cur_icd_group_count;
}
// If GPUs not sorted yet, look through them and generate list of all available GPUs
if (0 == total_count || 0 == inst->total_gpu_count) {
if (VK_SUCCESS != setup_loader_term_phys_devs(inst)) {
res = VK_ERROR_INITIALIZATION_FAILED;
loader_log(inst, VULKAN_LOADER_INFO_BIT, 0,
"setupLoaderTermPhysDevGroups: Did not detect any GPU Groups"
" in the current config");
goto out;
}
}
if (NULL != pPhysicalDeviceGroupProperties) {
// Create an array for the new physical device groups, which will be stored
// in the instance for the Terminator code.
new_phys_dev_groups = (VkPhysicalDeviceGroupProperties **)loader_instance_heap_alloc(
inst, total_count * sizeof(VkPhysicalDeviceGroupProperties *), VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (NULL == new_phys_dev_groups) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_term_phys_dev_groups: Failed to allocate new physical device group array of size %d",
total_count);
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
memset(new_phys_dev_groups, 0, total_count * sizeof(VkPhysicalDeviceGroupProperties *));
// Create a temporary array (on the stack) to keep track of the
// returned VkPhysicalDevice values.
local_phys_dev_groups = loader_stack_alloc(sizeof(struct loader_physical_device_group_term) * total_count);
local_phys_dev_group_sorted = loader_stack_alloc(sizeof(bool) * total_count);
if (NULL == local_phys_dev_groups || NULL == local_phys_dev_group_sorted) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_term_phys_dev_groups: Failed to allocate local physical device group array of size %d",
total_count);
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
// Initialize the memory to something valid
memset(local_phys_dev_groups, 0, sizeof(struct loader_physical_device_group_term) * total_count);
memset(local_phys_dev_group_sorted, 0, sizeof(bool) * total_count);
#if defined(_WIN32)
// Get the physical devices supported by platform sorting mechanism into a separate list
res = windows_read_sorted_physical_devices(inst, &sorted_phys_dev_array, &sorted_count);
if (VK_SUCCESS != res) {
goto out;
}
#endif
cur_icd_group_count = 0;
icd_term = inst->icd_terms;
for (icd_idx = 0; NULL != icd_term; icd_term = icd_term->next, icd_idx++) {
uint32_t count_this_time = total_count - cur_icd_group_count;
// Check if this group can be sorted
#if defined(VK_USE_PLATFORM_WIN32_KHR)
bool icd_sorted = sorted_count && (icd_term->scanned_icd->EnumerateAdapterPhysicalDevices != NULL);
#else
bool icd_sorted = false;
#endif
// Get the function pointer to use to call into the ICD. This could be the core or KHR version
if (inst->enabled_known_extensions.khr_device_group_creation) {
fpEnumeratePhysicalDeviceGroups = icd_term->dispatch.EnumeratePhysicalDeviceGroupsKHR;
} else {
fpEnumeratePhysicalDeviceGroups = icd_term->dispatch.EnumeratePhysicalDeviceGroups;
}
if (NULL == fpEnumeratePhysicalDeviceGroups) {
icd_term->dispatch.EnumeratePhysicalDevices(icd_term->instance, &count_this_time, NULL);
VkPhysicalDevice *phys_dev_array = loader_stack_alloc(sizeof(VkPhysicalDevice) * count_this_time);
if (NULL == phys_dev_array) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_term_phys_dev_groups: Failed to allocate local physical device array of size %d",
count_this_time);
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
res = icd_term->dispatch.EnumeratePhysicalDevices(icd_term->instance, &count_this_time, phys_dev_array);
if (res != VK_SUCCESS) {
loader_log(
inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_term_phys_dev_groups: Failed during dispatch call of \'EnumeratePhysicalDevices\' to ICD %d "
"to get plain phys dev count.",
icd_idx);
goto out;
}
// Add each GPU as it's own group
for (uint32_t indiv_gpu = 0; indiv_gpu < count_this_time; indiv_gpu++) {
uint32_t cur_index = indiv_gpu + cur_icd_group_count;
local_phys_dev_groups[cur_index].this_icd_term = icd_term;
local_phys_dev_groups[cur_index].icd_index = icd_idx;
local_phys_dev_groups[cur_index].group_props.physicalDeviceCount = 1;
local_phys_dev_groups[cur_index].group_props.physicalDevices[0] = phys_dev_array[indiv_gpu];
local_phys_dev_group_sorted[cur_index] = icd_sorted;
}
} else {
fpEnumeratePhysicalDeviceGroups(icd_term->instance, &count_this_time, NULL);
if (cur_icd_group_count + count_this_time < *pPhysicalDeviceGroupCount) {
// Can just use passed in structs
res = fpEnumeratePhysicalDeviceGroups(icd_term->instance, &count_this_time,
&pPhysicalDeviceGroupProperties[cur_icd_group_count]);
for (uint32_t group = 0; group < count_this_time; ++group) {
uint32_t cur_index = group + cur_icd_group_count;
local_phys_dev_groups[cur_index].group_props = pPhysicalDeviceGroupProperties[cur_index];
local_phys_dev_group_sorted[cur_index] = icd_sorted;
local_phys_dev_groups[cur_index].this_icd_term = icd_term;
local_phys_dev_groups[cur_index].icd_index = icd_idx;
}
} else {
// Have to use a temporary copy
VkPhysicalDeviceGroupProperties *tmp_group_props =
loader_stack_alloc(count_this_time * sizeof(VkPhysicalDeviceGroupProperties));
for (uint32_t group = 0; group < count_this_time; group++) {
tmp_group_props[group].sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_GROUP_PROPERTIES_KHR;
uint32_t cur_index = group + cur_icd_group_count;
if (*pPhysicalDeviceGroupCount > cur_index) {
tmp_group_props[group].pNext = pPhysicalDeviceGroupProperties[cur_index].pNext;
} else {
tmp_group_props[group].pNext = NULL;
}
tmp_group_props[group].subsetAllocation = false;
}
res = fpEnumeratePhysicalDeviceGroups(icd_term->instance, &count_this_time, tmp_group_props);
for (uint32_t group = 0; group < count_this_time; ++group) {
uint32_t cur_index = group + cur_icd_group_count;
local_phys_dev_groups[cur_index].group_props = tmp_group_props[group];
local_phys_dev_group_sorted[cur_index] = icd_sorted;
local_phys_dev_groups[cur_index].this_icd_term = icd_term;
local_phys_dev_groups[cur_index].icd_index = icd_idx;
}
}
if (VK_SUCCESS != res) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_term_phys_dev_groups: Failed during dispatch call of "
"\'EnumeratePhysicalDeviceGroups\' to ICD %d to get content.",
icd_idx);
goto out;
}
}
cur_icd_group_count += count_this_time;
}
#ifdef LOADER_ENABLE_LINUX_SORT
if (is_linux_sort_enabled(inst)) {
// Get the physical devices supported by platform sorting mechanism into a separate list
res = linux_read_sorted_physical_device_groups(inst, total_count, local_phys_dev_groups);
}
#endif // LOADER_ENABLE_LINUX_SORT
// Replace all the physical device IDs with the proper loader values
if (NULL != inst->phys_devs_term) {
for (uint32_t group = 0; group < total_count; group++) {
for (uint32_t group_gpu = 0; group_gpu < local_phys_dev_groups[group].group_props.physicalDeviceCount;
group_gpu++) {
bool found = false;
for (uint32_t term_gpu = 0; term_gpu < inst->phys_dev_count_term; term_gpu++) {
if (local_phys_dev_groups[group].group_props.physicalDevices[group_gpu] ==
inst->phys_devs_term[term_gpu]->phys_dev) {
local_phys_dev_groups[group].group_props.physicalDevices[group_gpu] =
(VkPhysicalDevice)inst->phys_devs_term[term_gpu];
found = true;
break;
}
}
if (!found) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_term_phys_dev_groups: Failed to find GPU %d in group %d returned by "
"\'EnumeratePhysicalDeviceGroups\' in list returned by \'EnumeratePhysicalDevices\'",
group_gpu, group);
res = VK_ERROR_INITIALIZATION_FAILED;
goto out;
}
}
}
}
uint32_t idx = 0;
#if defined(_WIN32)
// Copy over everything found through sorted enumeration
for (uint32_t i = 0; i < sorted_count; ++i) {
// Find the VkPhysicalDeviceGroupProperties object in local_phys_dev_groups
VkPhysicalDeviceGroupProperties *group_properties = NULL;
for (uint32_t group = 0; group < total_count; group++) {
if (sorted_phys_dev_array[i].device_count != local_phys_dev_groups[group].group_props.physicalDeviceCount) {
continue;
}
bool match = true;
for (uint32_t group_gpu = 0; group_gpu < local_phys_dev_groups[group].group_props.physicalDeviceCount;
group_gpu++) {
if (sorted_phys_dev_array[i].physical_devices[group_gpu] !=
((struct loader_physical_device_term *)local_phys_dev_groups[group].group_props.physicalDevices[group_gpu])
->phys_dev) {
match = false;
break;
}
}
if (match) {
group_properties = &local_phys_dev_groups[group].group_props;
}
}
// Check if this physical device group with the same contents is already in the old buffer
for (uint32_t old_idx = 0; old_idx < inst->phys_dev_group_count_term; old_idx++) {
if (NULL != group_properties &&
group_properties->physicalDeviceCount == inst->phys_dev_groups_term[old_idx]->physicalDeviceCount) {
bool found_all_gpus = true;
for (uint32_t old_gpu = 0; old_gpu < inst->phys_dev_groups_term[old_idx]->physicalDeviceCount; old_gpu++) {
bool found_gpu = false;
for (uint32_t new_gpu = 0; new_gpu < group_properties->physicalDeviceCount; new_gpu++) {
if (group_properties->physicalDevices[new_gpu] ==
inst->phys_dev_groups_term[old_idx]->physicalDevices[old_gpu]) {
found_gpu = true;
break;
}
}
if (!found_gpu) {
found_all_gpus = false;
break;
}
}
if (!found_all_gpus) {
continue;
} else {
new_phys_dev_groups[idx] = inst->phys_dev_groups_term[old_idx];
break;
}
}
}
// If this physical device group isn't in the old buffer, create it
if (group_properties != NULL && NULL == new_phys_dev_groups[idx]) {
new_phys_dev_groups[idx] = (VkPhysicalDeviceGroupPropertiesKHR *)loader_instance_heap_alloc(
inst, sizeof(VkPhysicalDeviceGroupPropertiesKHR), VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (NULL == new_phys_dev_groups[idx]) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_term_phys_dev_groups: Failed to allocate physical device group Terminator object %d",
idx);
total_count = idx;
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
memcpy(new_phys_dev_groups[idx], group_properties, sizeof(VkPhysicalDeviceGroupPropertiesKHR));
}
++idx;
}
#endif
// Copy or create everything to fill the new array of physical device groups
for (uint32_t new_idx = 0; new_idx < total_count; new_idx++) {
// Skip groups which have been included through sorting
if (local_phys_dev_group_sorted[new_idx] || local_phys_dev_groups[new_idx].group_props.physicalDeviceCount == 0) {
continue;
}
// Check if this physical device group with the same contents is already in the old buffer
for (uint32_t old_idx = 0; old_idx < inst->phys_dev_group_count_term; old_idx++) {
if (local_phys_dev_groups[new_idx].group_props.physicalDeviceCount ==
inst->phys_dev_groups_term[old_idx]->physicalDeviceCount) {
bool found_all_gpus = true;
for (uint32_t old_gpu = 0; old_gpu < inst->phys_dev_groups_term[old_idx]->physicalDeviceCount; old_gpu++) {
bool found_gpu = false;
for (uint32_t new_gpu = 0; new_gpu < local_phys_dev_groups[new_idx].group_props.physicalDeviceCount;
new_gpu++) {
if (local_phys_dev_groups[new_idx].group_props.physicalDevices[new_gpu] ==
inst->phys_dev_groups_term[old_idx]->physicalDevices[old_gpu]) {
found_gpu = true;
break;
}
}
if (!found_gpu) {
found_all_gpus = false;
break;
}
}
if (!found_all_gpus) {
continue;
} else {
new_phys_dev_groups[idx] = inst->phys_dev_groups_term[old_idx];
break;
}
}
}
// If this physical device group isn't in the old buffer, create it
if (NULL == new_phys_dev_groups[idx]) {
new_phys_dev_groups[idx] = (VkPhysicalDeviceGroupPropertiesKHR *)loader_instance_heap_alloc(
inst, sizeof(VkPhysicalDeviceGroupPropertiesKHR), VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
if (NULL == new_phys_dev_groups[idx]) {
loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0,
"setup_loader_term_phys_dev_groups: Failed to allocate physical device group Terminator object %d",
idx);
total_count = idx;
res = VK_ERROR_OUT_OF_HOST_MEMORY;
goto out;
}
memcpy(new_phys_dev_groups[idx], &local_phys_dev_groups[new_idx].group_props,
sizeof(VkPhysicalDeviceGroupPropertiesKHR));
}
++idx;
}
}
out:
if (NULL != pPhysicalDeviceGroupProperties) {
if (VK_SUCCESS != res) {
if (NULL != new_phys_dev_groups) {
for (uint32_t i = 0; i < total_count; i++) {
loader_instance_heap_free(inst, new_phys_dev_groups[i]);
}
loader_instance_heap_free(inst, new_phys_dev_groups);
}
} else {
// Free everything that didn't carry over to the new array of
// physical device groups
if (NULL != inst->phys_dev_groups_term) {
for (uint32_t i = 0; i < inst->phys_dev_group_count_term; i++) {
bool found = false;
for (uint32_t j = 0; j < total_count; j++) {
if (inst->phys_dev_groups_term[i] == new_phys_dev_groups[j]) {
found = true;
break;
}
}
if (!found) {
loader_instance_heap_free(inst, inst->phys_dev_groups_term[i]);
}
}
loader_instance_heap_free(inst, inst->phys_dev_groups_term);
}
// Swap in the new physical device group list
inst->phys_dev_group_count_term = total_count;
inst->phys_dev_groups_term = new_phys_dev_groups;
}
if (sorted_phys_dev_array != NULL) {
for (uint32_t i = 0; i < sorted_count; ++i) {
if (sorted_phys_dev_array[i].device_count > 0 && sorted_phys_dev_array[i].physical_devices != NULL) {
loader_instance_heap_free(inst, sorted_phys_dev_array[i].physical_devices);
}
}
loader_instance_heap_free(inst, sorted_phys_dev_array);
}
uint32_t copy_count = inst->phys_dev_group_count_term;
if (NULL != pPhysicalDeviceGroupProperties) {
if (copy_count > *pPhysicalDeviceGroupCount) {
copy_count = *pPhysicalDeviceGroupCount;
res = VK_INCOMPLETE;
}
for (uint32_t i = 0; i < copy_count; i++) {
memcpy(&pPhysicalDeviceGroupProperties[i], inst->phys_dev_groups_term[i], sizeof(VkPhysicalDeviceGroupProperties));
}
}
*pPhysicalDeviceGroupCount = copy_count;
} else {
*pPhysicalDeviceGroupCount = total_count;
}
return res;
}
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