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fuchsia / third_party / Vulkan-Loader / 1e565fe2f585c944890c5fb8326dcf41399f15f7 / . / loader / loader.c
blob: a2d7cf7a0a09d7260762378f2cc40256b4be7c8e [file] [log] [blame]
/*
* Vulkan
*
* Copyright (C) 2014 LunarG, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Authors:
* Chia-I Wu <olv@lunarg.com>
* Jon Ashburn <jon@lunarg.com>
* Courtney Goeltzenleuchter <courtney@lunarg.com>
* Ian Elliott <ian@lunarg.com>
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdbool.h>
#include <string.h>
#include <sys/types.h>
#if defined(WIN32)
#include "dirent_on_windows.h"
#else // WIN32
#include <dirent.h>
#endif // WIN32
#include "loader_platform.h"
#include "table_ops.h"
#include "gpa_helper.h"
#include "loader.h"
#include "vkIcd.h"
// The following is #included again to catch certain OS-specific functions
// being used:
#include "loader_platform.h"
struct loader_layers {
loader_platform_dl_handle lib_handle;
char name[256];
};
struct layer_name_pair {
char *layer_name;
const char *lib_name;
};
struct extension_property {
char extName[VK_MAX_EXTENSION_NAME];
uint32_t version;
bool hosted; // does the extension reside in one driver/layer
};
struct loader_icd {
const struct loader_scanned_icds *scanned_icds;
VkLayerDispatchTable *loader_dispatch;
uint32_t layer_count[MAX_GPUS_FOR_LAYER];
struct loader_layers layer_libs[MAX_GPUS_FOR_LAYER][MAX_LAYER_LIBRARIES];
VkBaseLayerObject *wrappedGpus[MAX_GPUS_FOR_LAYER];
uint32_t gpu_count;
VkBaseLayerObject *gpus;
struct loader_icd *next;
};
struct loader_scanned_icds {
loader_platform_dl_handle handle;
PFN_vkGetProcAddr GetProcAddr;
PFN_vkCreateInstance CreateInstance;
PFN_vkDestroyInstance DestroyInstance;
PFN_vkEnumeratePhysicalDevices EnumeratePhysicalDevices;
PFN_vkGetGlobalExtensionInfo GetGlobalExtensionInfo;
VkInstance instance;
struct loader_scanned_icds *next;
uint32_t extension_count;
struct extension_property *extensions;
};
struct loader_scanned_layers {
char *name;
uint32_t extension_count;
struct extension_property *extensions;
};
// Note: Since the following is a static structure, all members are initialized
// to zero.
static struct {
struct loader_instance *instances;
bool icds_scanned;
struct loader_scanned_icds *scanned_icd_list;
bool layer_scanned;
char *layer_dirs;
unsigned int scanned_layer_count;
struct loader_scanned_layers scanned_layers[MAX_LAYER_LIBRARIES];
size_t scanned_ext_list_capacity;
uint32_t scanned_ext_list_count; // coalesced from all layers/drivers
struct extension_property **scanned_ext_list;
} loader;
static LOADER_PLATFORM_THREAD_ONCE_DECLARATION(once_icd);
static LOADER_PLATFORM_THREAD_ONCE_DECLARATION(once_layer);
static LOADER_PLATFORM_THREAD_ONCE_DECLARATION(once_exts);
#if defined(WIN32)
char *loader_get_registry_string(const HKEY hive,
const LPCTSTR sub_key,
const char *value)
{
DWORD access_flags = KEY_QUERY_VALUE;
DWORD value_type;
HKEY key;
LONG rtn_value;
char *rtn_str = NULL;
size_t rtn_len = 0;
size_t allocated_len = 0;
rtn_value = RegOpenKeyEx(hive, sub_key, 0, access_flags, &key);
if (rtn_value != ERROR_SUCCESS) {
// We didn't find the key. Try the 32-bit hive (where we've seen the
// key end up on some people's systems):
access_flags |= KEY_WOW64_32KEY;
rtn_value = RegOpenKeyEx(hive, sub_key, 0, access_flags, &key);
if (rtn_value != ERROR_SUCCESS) {
// We still couldn't find the key, so give up:
return NULL;
}
}
rtn_value = RegQueryValueEx(key, value, NULL, &value_type,
(PVOID) rtn_str, &rtn_len);
if (rtn_value == ERROR_SUCCESS) {
// If we get to here, we found the key, and need to allocate memory
// large enough for rtn_str, and query again:
allocated_len = rtn_len + 4;
rtn_str = malloc(allocated_len);
rtn_value = RegQueryValueEx(key, value, NULL, &value_type,
(PVOID) rtn_str, &rtn_len);
if (rtn_value == ERROR_SUCCESS) {
// We added 4 extra bytes to rtn_str, so that we can ensure that
// the string is NULL-terminated (albeit, in a brute-force manner):
rtn_str[allocated_len-1] = '\0';
} else {
// This should never occur, but in case it does, clean up:
free(rtn_str);
rtn_str = NULL;
}
} // else - shouldn't happen, but if it does, return rtn_str, which is NULL
// Close the registry key that was opened:
RegCloseKey(key);
return rtn_str;
}
// For ICD developers, look in the registry, and look for an environment
// variable for a path(s) where to find the ICD(s):
static char *loader_get_registry_and_env(const char *env_var,
const char *registry_value)
{
char *env_str = getenv(env_var);
size_t env_len = (env_str == NULL) ? 0 : strlen(env_str);
char *registry_str = NULL;
DWORD registry_len = 0;
char *rtn_str = NULL;
size_t rtn_len;
registry_str = loader_get_registry_string(HKEY_LOCAL_MACHINE,
"Software\\Vulkan",
registry_value);
registry_len = (registry_str) ? strlen(registry_str) : 0;
rtn_len = env_len + registry_len + 1;
if (rtn_len <= 2) {
// We found neither the desired registry value, nor the environment
// variable; return NULL:
return NULL;
} else {
// We found something, and so we need to allocate memory for the string
// to return:
rtn_str = malloc(rtn_len);
}
if (registry_len == 0) {
// We didn't find the desired registry value, and so we must have found
// only the environment variable:
_snprintf(rtn_str, rtn_len, "%s", env_str);
} else if (env_str != NULL) {
// We found both the desired registry value and the environment
// variable, so concatenate them both:
_snprintf(rtn_str, rtn_len, "%s;%s", registry_str, env_str);
} else {
// We must have only found the desired registry value:
_snprintf(rtn_str, rtn_len, "%s", registry_str);
}
if (registry_str) {
free(registry_str);
}
return(rtn_str);
}
#endif // WIN32
static void loader_log(VK_DBG_MSG_TYPE msg_type, int32_t msg_code,
const char *format, ...)
{
char msg[256];
va_list ap;
int ret;
va_start(ap, format);
ret = vsnprintf(msg, sizeof(msg), format, ap);
if ((ret >= (int) sizeof(msg)) || ret < 0) {
msg[sizeof(msg) - 1] = '\0';
}
va_end(ap);
fputs(msg, stderr);
fputc('\n', stderr);
}
static bool has_extension(struct extension_property *exts, uint32_t count,
const char *name, bool must_be_hosted)
{
uint32_t i;
for (i = 0; i < count; i++) {
if (!strcmp(name, exts[i].extName) && (!must_be_hosted || exts[i].hosted))
return true;
}
return false;
}
static void get_global_extensions(PFN_vkGetGlobalExtensionInfo fp_get,
uint32_t *count_out,
struct extension_property **props_out)
{
uint32_t i, count, cur;
size_t siz = sizeof(count);
struct extension_property *ext_props;
VkExtensionProperties vk_prop;
VkResult res;
*count_out = 0;
*props_out = NULL;
res = fp_get(VK_EXTENSION_INFO_TYPE_COUNT, 0, &siz, &count);
if (res != VK_SUCCESS) {
loader_log(VK_DBG_MSG_WARNING, 0, "Error getting global extension count from ICD");
return;
}
ext_props = (struct extension_property *) malloc(sizeof(struct extension_property) * count);
if (ext_props == NULL) {
loader_log(VK_DBG_MSG_WARNING, 0, "Out of memory didn't get global extensions from ICD");
return;
}
siz = sizeof(VkExtensionProperties);
cur = 0;
for (i = 0; i < count; i++) {
res = fp_get(VK_EXTENSION_INFO_TYPE_PROPERTIES, i, &siz, &vk_prop);
if (res == VK_SUCCESS) {
(ext_props + cur)->hosted = false;
(ext_props + cur)->version = vk_prop.version;
strncpy((ext_props + cur)->extName, vk_prop.extName, VK_MAX_EXTENSION_NAME);
(ext_props + cur)->extName[VK_MAX_EXTENSION_NAME - 1] = '\0';
cur++;
}
*count_out = cur;
*props_out = ext_props;
}
return;
}
static void loader_init_ext_list()
{
loader.scanned_ext_list_capacity = 256 * sizeof(struct extension_property *);
loader.scanned_ext_list = malloc(loader.scanned_ext_list_capacity);
memset(loader.scanned_ext_list, 0, loader.scanned_ext_list_capacity);
loader.scanned_ext_list_count = 0;
}
#if 0 // currently no place to call this
static void loader_destroy_ext_list()
{
free(loader.scanned_ext_list);
loader.scanned_ext_list_capacity = 0;
loader.scanned_ext_list_count = 0;
}
#endif
static void loader_add_to_ext_list(uint32_t count,
struct extension_property *prop_list,
bool is_layer_ext)
{
uint32_t i, j;
bool duplicate;
struct extension_property *cur_ext;
if (loader.scanned_ext_list == NULL || loader.scanned_ext_list_capacity == 0)
loader_init_ext_list();
if (loader.scanned_ext_list == NULL)
return;
struct extension_property *ext_list, **ext_list_addr;
for (i = 0; i < count; i++) {
cur_ext = prop_list + i;
// look for duplicates or not
duplicate = false;
for (j = 0; j < loader.scanned_ext_list_count; j++) {
ext_list = loader.scanned_ext_list[j];
if (!strcmp(cur_ext->extName, ext_list->extName)) {
duplicate = true;
ext_list->hosted = false;
break;
}
}
// add to list at end
if (!duplicate) {
// check for enough capacity
if (loader.scanned_ext_list_count * sizeof(struct extension_property *)
>= loader.scanned_ext_list_capacity) {
// double capacity
loader.scanned_ext_list_capacity *= 2;
loader.scanned_ext_list = realloc(loader.scanned_ext_list,
loader.scanned_ext_list_capacity);
}
ext_list_addr = &(loader.scanned_ext_list[loader.scanned_ext_list_count++]);
*ext_list_addr = cur_ext;
cur_ext->hosted = true;
}
}
}
static bool loader_is_extension_scanned(const char *name)
{
uint32_t i;
for (i = 0; i < loader.scanned_ext_list_count; i++) {
if (!strcmp(name, loader.scanned_ext_list[i]->extName))
return true;
}
return false;
}
static void loader_coalesce_extensions()
{
uint32_t i;
struct loader_scanned_icds *icd_list = loader.scanned_icd_list;
// traverse scanned icd list adding non-duplicate extensions to the list
while (icd_list != NULL) {
loader_add_to_ext_list(icd_list->extension_count, icd_list->extensions, false);
icd_list = icd_list->next;
};
//Traverse layers list adding non-duplicate extensions to the list
for (i = 0; i < loader.scanned_layer_count; i++) {
loader_add_to_ext_list(loader.scanned_layers[i].extension_count,
loader.scanned_layers[i].extensions, true);
}
}
static void loader_icd_destroy(struct loader_icd *icd)
{
loader_platform_close_library(icd->scanned_icds->handle);
free(icd);
}
static struct loader_icd * loader_icd_create(const struct loader_scanned_icds *scanned)
{
struct loader_icd *icd;
icd = malloc(sizeof(*icd));
if (!icd)
return NULL;
memset(icd, 0, sizeof(*icd));
icd->scanned_icds = scanned;
return icd;
}
static struct loader_icd *loader_icd_add(struct loader_instance *ptr_inst,
const struct loader_scanned_icds *scanned)
{
struct loader_icd *icd;
icd = loader_icd_create(scanned);
if (!icd)
return NULL;
/* prepend to the list */
icd->next = ptr_inst->icds;
ptr_inst->icds = icd;
return icd;
}
static void loader_scanned_icd_add(const char *filename)
{
loader_platform_dl_handle handle;
void *fp_gpa, *fp_enumerate, *fp_create_inst, *fp_destroy_inst;
void *fp_get_global_ext_info;
struct loader_scanned_icds *new_node;
// Used to call: dlopen(filename, RTLD_LAZY);
handle = loader_platform_open_library(filename);
if (!handle) {
loader_log(VK_DBG_MSG_WARNING, 0, loader_platform_open_library_error(filename));
return;
}
#define LOOKUP(func_ptr, func) do { \
func_ptr = (PFN_vk ##func) loader_platform_get_proc_address(handle, "vk" #func); \
if (!func_ptr) { \
loader_log(VK_DBG_MSG_WARNING, 0, loader_platform_get_proc_address_error("vk" #func)); \
return; \
} \
} while (0)
LOOKUP(fp_gpa, GetProcAddr);
LOOKUP(fp_create_inst, CreateInstance);
LOOKUP(fp_destroy_inst, DestroyInstance);
LOOKUP(fp_enumerate, EnumeratePhysicalDevices);
LOOKUP(fp_get_global_ext_info, GetGlobalExtensionInfo);
#undef LOOKUP
new_node = (struct loader_scanned_icds *) malloc(sizeof(struct loader_scanned_icds));
if (!new_node) {
loader_log(VK_DBG_MSG_WARNING, 0, "Out of memory can't add icd");
return;
}
new_node->handle = handle;
new_node->GetProcAddr = fp_gpa;
new_node->CreateInstance = fp_create_inst;
new_node->DestroyInstance = fp_destroy_inst;
new_node->EnumeratePhysicalDevices = fp_enumerate;
new_node->GetGlobalExtensionInfo = fp_get_global_ext_info;
new_node->extension_count = 0;
new_node->extensions = NULL;
new_node->next = loader.scanned_icd_list;
loader.scanned_icd_list = new_node;
if (fp_get_global_ext_info) {
get_global_extensions((PFN_vkGetGlobalExtensionInfo) fp_get_global_ext_info,
&new_node->extension_count,
&new_node->extensions);
} else {
loader_log(VK_DBG_MSG_WARNING, 0, "Couldn't get global extensions from ICD");
}
}
/**
* Try to \c loader_icd_scan VK driver(s).
*
* This function scans the default system path or path
* specified by the \c LIBVK_DRIVERS_PATH environment variable in
* order to find loadable VK ICDs with the name of libVK_*.
*
* \returns
* void; but side effect is to set loader_icd_scanned to true
*/
static void loader_icd_scan(void)
{
const char *p, *next;
char *libPaths = NULL;
DIR *sysdir;
struct dirent *dent;
char icd_library[1024];
char path[1024];
uint32_t len;
#if defined(WIN32)
bool must_free_libPaths;
libPaths = loader_get_registry_and_env(DRIVER_PATH_ENV,
DRIVER_PATH_REGISTRY_VALUE);
if (libPaths != NULL) {
must_free_libPaths = true;
} else {
must_free_libPaths = false;
libPaths = DEFAULT_VK_DRIVERS_PATH;
}
#else // WIN32
if (geteuid() == getuid()) {
/* Don't allow setuid apps to use the DRIVER_PATH_ENV env var: */
libPaths = getenv(DRIVER_PATH_ENV);
}
if (libPaths == NULL) {
libPaths = DEFAULT_VK_DRIVERS_PATH;
}
#endif // WIN32
for (p = libPaths; *p; p = next) {
next = strchr(p, PATH_SEPERATOR);
if (next == NULL) {
len = (uint32_t) strlen(p);
next = p + len;
}
else {
len = (uint32_t) (next - p);
sprintf(path, "%.*s", (len > sizeof(path) - 1) ? (int) sizeof(path) - 1 : len, p);
p = path;
next++;
}
// TODO/TBD: Do we want to do this on Windows, or just let Windows take
// care of its own search path (which it apparently has)?
sysdir = opendir(p);
if (sysdir) {
dent = readdir(sysdir);
while (dent) {
/* Look for ICDs starting with VK_DRIVER_LIBRARY_PREFIX and
* ending with VK_LIBRARY_SUFFIX
*/
if (!strncmp(dent->d_name,
VK_DRIVER_LIBRARY_PREFIX,
VK_DRIVER_LIBRARY_PREFIX_LEN)) {
uint32_t nlen = (uint32_t) strlen(dent->d_name);
const char *suf = dent->d_name + nlen - VK_LIBRARY_SUFFIX_LEN;
if ((nlen > VK_LIBRARY_SUFFIX_LEN) &&
!strncmp(suf,
VK_LIBRARY_SUFFIX,
VK_LIBRARY_SUFFIX_LEN)) {
snprintf(icd_library, 1024, "%s" DIRECTORY_SYMBOL "%s", p,dent->d_name);
loader_scanned_icd_add(icd_library);
}
}
dent = readdir(sysdir);
}
closedir(sysdir);
}
}
#if defined(WIN32)
// Free any allocated memory:
if (must_free_libPaths) {
free(libPaths);
}
#endif // WIN32
// Note that we've scanned for ICDs:
loader.icds_scanned = true;
}
static void layer_lib_scan(void)
{
const char *p, *next;
char *libPaths = NULL;
DIR *curdir;
struct dirent *dent;
size_t len, i;
char temp_str[1024];
uint32_t count;
PFN_vkGetGlobalExtensionInfo fp_get_ext;
#if defined(WIN32)
bool must_free_libPaths;
libPaths = loader_get_registry_and_env(LAYERS_PATH_ENV,
LAYERS_PATH_REGISTRY_VALUE);
if (libPaths != NULL) {
must_free_libPaths = true;
} else {
must_free_libPaths = false;
libPaths = DEFAULT_VK_LAYERS_PATH;
}
#else // WIN32
if (geteuid() == getuid()) {
/* Don't allow setuid apps to use the DRIVER_PATH_ENV env var: */
libPaths = getenv(LAYERS_PATH_ENV);
}
if (libPaths == NULL) {
libPaths = DEFAULT_VK_LAYERS_PATH;
}
#endif // WIN32
if (libPaths == NULL) {
// Have no paths to search:
return;
}
len = strlen(libPaths);
loader.layer_dirs = malloc(len+1);
if (loader.layer_dirs == NULL) {
free(libPaths);
return;
}
// Alloc passed, so we know there is enough space to hold the string, don't
// need strncpy
strcpy(loader.layer_dirs, libPaths);
#if defined(WIN32)
// Free any allocated memory:
if (must_free_libPaths) {
free(libPaths);
must_free_libPaths = false;
}
#endif // WIN32
libPaths = loader.layer_dirs;
/* cleanup any previously scanned libraries */
for (i = 0; i < loader.scanned_layer_count; i++) {
if (loader.scanned_layers[i].name != NULL)
free(loader.scanned_layers[i].name);
if (loader.scanned_layers[i].extensions != NULL)
free(loader.scanned_layers[i].extensions);
loader.scanned_layers[i].name = NULL;
loader.scanned_layers[i].extensions = NULL;
}
loader.scanned_layer_count = 0;
count = 0;
for (p = libPaths; *p; p = next) {
next = strchr(p, PATH_SEPERATOR);
if (next == NULL) {
len = (uint32_t) strlen(p);
next = p + len;
}
else {
len = (uint32_t) (next - p);
*(char *) next = '\0';
next++;
}
curdir = opendir(p);
if (curdir) {
dent = readdir(curdir);
while (dent) {
/* Look for layers starting with VK_LAYER_LIBRARY_PREFIX and
* ending with VK_LIBRARY_SUFFIX
*/
if (!strncmp(dent->d_name,
VK_LAYER_LIBRARY_PREFIX,
VK_LAYER_LIBRARY_PREFIX_LEN)) {
uint32_t nlen = (uint32_t) strlen(dent->d_name);
const char *suf = dent->d_name + nlen - VK_LIBRARY_SUFFIX_LEN;
if ((nlen > VK_LIBRARY_SUFFIX_LEN) &&
!strncmp(suf,
VK_LIBRARY_SUFFIX,
VK_LIBRARY_SUFFIX_LEN)) {
loader_platform_dl_handle handle;
snprintf(temp_str, sizeof(temp_str),
"%s" DIRECTORY_SYMBOL "%s",p,dent->d_name);
// Used to call: dlopen(temp_str, RTLD_LAZY)
if ((handle = loader_platform_open_library(temp_str)) == NULL) {
dent = readdir(curdir);
continue;
}
if (count == MAX_LAYER_LIBRARIES) {
loader_log(VK_DBG_MSG_ERROR, 0,
"%s ignored: max layer libraries exceed",
temp_str);
break;
}
fp_get_ext = loader_platform_get_proc_address(handle,
"vkGetGlobalExtensionInfo");
if (!fp_get_ext) {
loader_log(VK_DBG_MSG_WARNING, 0,
"Couldn't dlsym vkGetGlobalExtensionInfo from library %s",
temp_str);
dent = readdir(curdir);
loader_platform_close_library(handle);
continue;
}
loader.scanned_layers[count].name =
malloc(strlen(temp_str) + 1);
if (loader.scanned_layers[count].name == NULL) {
loader_log(VK_DBG_MSG_ERROR, 0, "%s ignored: out of memory", temp_str);
break;
}
get_global_extensions(fp_get_ext,
&loader.scanned_layers[count].extension_count,
&loader.scanned_layers[count].extensions);
strcpy(loader.scanned_layers[count].name, temp_str);
count++;
loader_platform_close_library(handle);
}
}
dent = readdir(curdir);
} // while (dir_entry)
if (count == MAX_LAYER_LIBRARIES)
break;
closedir(curdir);
} // if (curdir))
} // for (libpaths)
loader.scanned_layer_count = count;
loader.layer_scanned = true;
}
static void loader_init_dispatch_table(VkLayerDispatchTable *tab, PFN_vkGetProcAddr fpGPA, VkPhysicalDevice gpu)
{
loader_initialize_dispatch_table(tab, fpGPA, gpu);
if (tab->EnumerateLayers == NULL)
tab->EnumerateLayers = vkEnumerateLayers;
}
static void * VKAPI loader_gpa_internal(VkPhysicalDevice gpu, const char * pName)
{
if (gpu == VK_NULL_HANDLE) {
return NULL;;
}
VkBaseLayerObject* gpuw = (VkBaseLayerObject *) gpu;
VkLayerDispatchTable * disp_table = * (VkLayerDispatchTable **) gpuw->baseObject;
void *addr;
if (disp_table == NULL)
return NULL;
addr = loader_lookup_dispatch_table(disp_table, pName);
if (addr)
return addr;
else {
if (disp_table->GetProcAddr == NULL)
return NULL;
return disp_table->GetProcAddr(gpuw->nextObject, pName);
}
}
extern struct loader_icd * loader_get_icd(const VkBaseLayerObject *gpu, uint32_t *gpu_index)
{
/*
* NOTE: at this time icd->gpus is pointing to wrapped GPUs, but no where else
* are wrapped gpus used. Should go away. The incoming gpu is NOT wrapped so
* need to test it against the wrapped GPU's base object.
*/
for (struct loader_instance *inst = loader.instances; inst; inst = inst->next) {
for (struct loader_icd *icd = inst->icds; icd; icd = icd->next) {
for (uint32_t i = 0; i < icd->gpu_count; i++)
if ((icd->gpus + i) == gpu || (void*)(icd->gpus +i)->baseObject == gpu) {
*gpu_index = i;
return icd;
}
}
}
return NULL;
}
static bool loader_layers_activated(const struct loader_icd *icd, const uint32_t gpu_index)
{
if (icd->layer_count[gpu_index])
return true;
else
return false;
}
static void loader_init_layer_libs(struct loader_icd *icd, uint32_t gpu_index,
struct layer_name_pair * pLayerNames,
uint32_t count)
{
if (!icd)
return;
struct loader_layers *obj;
bool foundLib;
for (uint32_t i = 0; i < count; i++) {
foundLib = false;
for (uint32_t j = 0; j < icd->layer_count[gpu_index]; j++) {
if (icd->layer_libs[gpu_index][j].lib_handle &&
!strcmp(icd->layer_libs[gpu_index][j].name,
(char *) pLayerNames[i].layer_name) &&
strcmp("Validation", (char *) pLayerNames[i].layer_name)) {
foundLib = true;
break;
}
}
if (!foundLib) {
obj = &(icd->layer_libs[gpu_index][i]);
strncpy(obj->name, (char *) pLayerNames[i].layer_name, sizeof(obj->name) - 1);
obj->name[sizeof(obj->name) - 1] = '\0';
// Used to call: dlopen(pLayerNames[i].lib_name, RTLD_LAZY | RTLD_DEEPBIND)
if ((obj->lib_handle = loader_platform_open_library(pLayerNames[i].lib_name)) == NULL) {
loader_log(VK_DBG_MSG_ERROR, 0, loader_platform_open_library_error(pLayerNames[i].lib_name));
continue;
} else {
loader_log(VK_DBG_MSG_UNKNOWN, 0, "Inserting layer %s from library %s",
pLayerNames[i].layer_name, pLayerNames[i].lib_name);
}
free(pLayerNames[i].layer_name);
icd->layer_count[gpu_index]++;
}
}
}
static bool find_layer_extension(struct loader_icd *icd, uint32_t gpu_index,
const char *pExtName, uint32_t *out_count,
char *lib_name[MAX_LAYER_LIBRARIES])
{
char *search_name;
uint32_t j, found_count = 0;
bool must_be_hosted;
bool found = false;
/*
* The loader provides the abstraction that make layers and extensions work via
* the currently defined extension mechanism. That is, when app queries for an extension
* via vkGetGlobalExtensionInfo, the loader will call both the driver as well as any layers
* to see who implements that extension. Then, if the app enables the extension during
* vkCreateInstance the loader will find and load any layers that implement that extension.
*/
// TODO: what about GetPhysicalDeviceExtension for device specific layers/extensions
for (j = 0; j < loader.scanned_layer_count; j++) {
if (!strcmp("Validation", pExtName))
must_be_hosted = false;
else
must_be_hosted = true;
if (has_extension(loader.scanned_layers[j].extensions,
loader.scanned_layers[j].extension_count, pExtName,
must_be_hosted)) {
found = true;
lib_name[found_count] = loader.scanned_layers[j].name;
found_count++;
} else {
// Extension not found in list for the layer, so test the layer name
// as if it is an extension name. Use default layer name based on
// library name VK_LAYER_LIBRARY_PREFIX<name>.VK_LIBRARY_SUFFIX
char *pEnd;
size_t siz;
search_name = loader.scanned_layers[j].name;
search_name = basename(search_name);
search_name += strlen(VK_LAYER_LIBRARY_PREFIX);
pEnd = strrchr(search_name, '.');
siz = (int) (pEnd - search_name);
if (siz != strlen(pExtName))
continue;
if (strncmp(search_name, pExtName, siz) == 0) {
found = true;
lib_name[found_count] = loader.scanned_layers[j].name;
found_count++;
}
}
}
*out_count = found_count;
return found;
}
static uint32_t loader_get_layer_env(struct loader_icd *icd, uint32_t gpu_index, struct layer_name_pair *pLayerNames)
{
char *layerEnv;
uint32_t i, len, found_count, count = 0;
char *p, *pOrig, *next, *name;
#if defined(WIN32)
layerEnv = loader_get_registry_and_env(LAYER_NAMES_ENV,
LAYER_NAMES_REGISTRY_VALUE);
#else // WIN32
layerEnv = getenv(LAYER_NAMES_ENV);
#endif // WIN32
if (layerEnv == NULL) {
return 0;
}
p = malloc(strlen(layerEnv) + 1);
if (p == NULL) {
#if defined(WIN32)
free(layerEnv);
#endif // WIN32
return 0;
}
strcpy(p, layerEnv);
#if defined(WIN32)
free(layerEnv);
#endif // WIN32
pOrig = p;
while (p && *p && count < MAX_LAYER_LIBRARIES) {
char *lib_name[MAX_LAYER_LIBRARIES];
//memset(&lib_name[0], 0, sizeof(const char *) * MAX_LAYER_LIBRARIES);
next = strchr(p, PATH_SEPERATOR);
if (next == NULL) {
len = (uint32_t) strlen(p);
next = p + len;
} else {
len = (uint32_t) (next - p);
*(char *) next = '\0';
next++;
}
name = basename(p);
if (!find_layer_extension(icd, gpu_index, name, &found_count, lib_name)) {
p = next;
continue;
}
for (i = 0; i < found_count; i++) {
len = (uint32_t) strlen(name);
pLayerNames[count].layer_name = malloc(len + 1);
if (!pLayerNames[count].layer_name) {
free(pOrig);
return count;
}
strncpy((char *) pLayerNames[count].layer_name, name, len);
pLayerNames[count].layer_name[len] = '\0';
pLayerNames[count].lib_name = lib_name[i];
count++;
}
p = next;
}
free(pOrig);
return count;
}
static uint32_t loader_get_layer_libs(struct loader_icd *icd, uint32_t gpu_index, uint32_t ext_count, const char *const* ext_names, struct layer_name_pair **ppLayerNames)
{
static struct layer_name_pair layerNames[MAX_LAYER_LIBRARIES];
char *lib_name[MAX_LAYER_LIBRARIES];
uint32_t found_count, count = 0;
bool skip;
*ppLayerNames = &layerNames[0];
/* Load any layers specified in the environment first */
count = loader_get_layer_env(icd, gpu_index, layerNames);
for (uint32_t i = 0; i < ext_count; i++) {
const char *pExtName = ext_names[i];
skip = false;
for (uint32_t j = 0; j < count; j++) {
if (!strcmp(pExtName, layerNames[j].layer_name) ) {
// Extension / Layer already on the list skip it
skip = true;
break;
}
}
if (!skip && find_layer_extension(icd, gpu_index, pExtName, &found_count, lib_name)) {
for (uint32_t j = 0; j < found_count; j++) {
uint32_t len;
len = (uint32_t) strlen(pExtName);
layerNames[count].layer_name = malloc(len + 1);
if (!layerNames[count].layer_name)
return count;
strncpy((char *) layerNames[count].layer_name, pExtName, len);
layerNames[count].layer_name[len] = '\0';
layerNames[count].lib_name = lib_name[j];
count++;
}
}
}
return count;
}
static void loader_deactivate_layer(const struct loader_instance *instance)
{
struct loader_icd *icd;
struct loader_layers *libs;
for (icd = instance->icds; icd; icd = icd->next) {
if (icd->gpus)
free(icd->gpus);
icd->gpus = NULL;
if (icd->loader_dispatch)
free(icd->loader_dispatch);
icd->loader_dispatch = NULL;
for (uint32_t j = 0; j < icd->gpu_count; j++) {
if (icd->layer_count[j] > 0) {
for (uint32_t i = 0; i < icd->layer_count[j]; i++) {
libs = &(icd->layer_libs[j][i]);
if (libs->lib_handle)
loader_platform_close_library(libs->lib_handle);
libs->lib_handle = NULL;
}
if (icd->wrappedGpus[j])
free(icd->wrappedGpus[j]);
}
icd->layer_count[j] = 0;
}
icd->gpu_count = 0;
}
}
extern uint32_t loader_activate_layers(struct loader_icd *icd, uint32_t gpu_index, uint32_t ext_count, const char *const* ext_names)
{
uint32_t count;
VkBaseLayerObject *gpu;
struct layer_name_pair *pLayerNames;
if (!icd)
return 0;
assert(gpu_index < MAX_GPUS_FOR_LAYER);
gpu = icd->gpus + gpu_index;
/* activate any layer libraries */
if (!loader_layers_activated(icd, gpu_index)) {
VkBaseLayerObject *gpuObj = gpu;
VkBaseLayerObject *nextGpuObj, *baseObj = (VkBaseLayerObject *) gpuObj->baseObject;
PFN_vkGetProcAddr nextGPA = loader_gpa_internal;
count = loader_get_layer_libs(icd, gpu_index, ext_count, ext_names, &pLayerNames);
if (!count)
return 0;
loader_init_layer_libs(icd, gpu_index, pLayerNames, count);
icd->wrappedGpus[gpu_index] = malloc(sizeof(VkBaseLayerObject) * icd->layer_count[gpu_index]);
if (! icd->wrappedGpus[gpu_index])
loader_log(VK_DBG_MSG_ERROR, 0, "Failed to malloc Gpu objects for layer");
for (int32_t i = icd->layer_count[gpu_index] - 1; i >= 0; i--) {
nextGpuObj = (icd->wrappedGpus[gpu_index] + i);
nextGpuObj->pGPA = nextGPA;
nextGpuObj->baseObject = (VkObject) baseObj;
nextGpuObj->nextObject = (VkObject) gpuObj;
gpuObj = nextGpuObj;
char funcStr[256];
snprintf(funcStr, 256, "%sGetProcAddr",icd->layer_libs[gpu_index][i].name);
if ((nextGPA = (PFN_vkGetProcAddr) loader_platform_get_proc_address(icd->layer_libs[gpu_index][i].lib_handle, funcStr)) == NULL)
nextGPA = (PFN_vkGetProcAddr) loader_platform_get_proc_address(icd->layer_libs[gpu_index][i].lib_handle, "vkGetProcAddr");
if (!nextGPA) {
loader_log(VK_DBG_MSG_ERROR, 0, "Failed to find vkGetProcAddr in layer %s", icd->layer_libs[gpu_index][i].name);
continue;
}
if (i == 0) {
loader_init_dispatch_table(icd->loader_dispatch + gpu_index, nextGPA, (VkPhysicalDevice) gpuObj);
//Insert the new wrapped objects into the list with loader object at head
gpu->nextObject = (VkObject) gpuObj;
gpu->pGPA = nextGPA;
gpuObj = icd->wrappedGpus[gpu_index] + icd->layer_count[gpu_index] - 1;
gpuObj->nextObject = (VkObject) baseObj;
gpuObj->pGPA = icd->scanned_icds->GetProcAddr;
}
}
}
else {
//make sure requested Layers matches currently activated Layers
count = loader_get_layer_libs(icd, gpu_index, ext_count, ext_names, &pLayerNames);
for (uint32_t i = 0; i < count; i++) {
if (strcmp(icd->layer_libs[gpu_index][i].name, pLayerNames[i].layer_name)) {
loader_log(VK_DBG_MSG_ERROR, 0, "Layers activated != Layers requested");
break;
}
}
if (count != icd->layer_count[gpu_index]) {
loader_log(VK_DBG_MSG_ERROR, 0, "Number of Layers activated != number requested");
}
}
return icd->layer_count[gpu_index];
}
LOADER_EXPORT VkResult VKAPI vkCreateInstance(
const VkInstanceCreateInfo* pCreateInfo,
VkInstance* pInstance)
{
struct loader_instance *ptr_instance = NULL;
struct loader_scanned_icds *scanned_icds;
struct loader_icd *icd;
VkResult res = VK_ERROR_INITIALIZATION_FAILED;
uint32_t i;
/* Scan/discover all ICD libraries in a single-threaded manner */
loader_platform_thread_once(&once_icd, loader_icd_scan);
/* get layer libraries in a single-threaded manner */
loader_platform_thread_once(&once_layer, layer_lib_scan);
/* merge any duplicate extensions */
loader_platform_thread_once(&once_exts, loader_coalesce_extensions);
ptr_instance = (struct loader_instance*) malloc(sizeof(struct loader_instance));
if (ptr_instance == NULL) {
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
memset(ptr_instance, 0, sizeof(struct loader_instance));
ptr_instance->extension_count = pCreateInfo->extensionCount;
ptr_instance->extension_names = (ptr_instance->extension_count > 0) ?
malloc(sizeof (char *) * ptr_instance->extension_count) : NULL;
if (ptr_instance->extension_names == NULL && (ptr_instance->extension_count > 0))
return VK_ERROR_OUT_OF_HOST_MEMORY;
for (i = 0; i < ptr_instance->extension_count; i++) {
if (!loader_is_extension_scanned(pCreateInfo->ppEnabledExtensionNames[i]))
return VK_ERROR_INVALID_EXTENSION;
ptr_instance->extension_names[i] = malloc(strlen(pCreateInfo->ppEnabledExtensionNames[i]) + 1);
if (ptr_instance->extension_names[i] == NULL)
return VK_ERROR_OUT_OF_HOST_MEMORY;
strcpy(ptr_instance->extension_names[i], pCreateInfo->ppEnabledExtensionNames[i]);
}
ptr_instance->next = loader.instances;
loader.instances = ptr_instance;
scanned_icds = loader.scanned_icd_list;
while (scanned_icds) {
icd = loader_icd_add(ptr_instance, scanned_icds);
if (icd) {
res = scanned_icds->CreateInstance(pCreateInfo,
&(scanned_icds->instance));
if (res != VK_SUCCESS)
{
ptr_instance->icds = ptr_instance->icds->next;
loader_icd_destroy(icd);
scanned_icds->instance = VK_NULL_HANDLE;
loader_log(VK_DBG_MSG_WARNING, 0,
"ICD ignored: failed to CreateInstance on device");
}
}
scanned_icds = scanned_icds->next;
}
if (ptr_instance->icds == NULL) {
return VK_ERROR_INCOMPATIBLE_DRIVER;
}
*pInstance = (VkInstance) ptr_instance;
return VK_SUCCESS;
}
LOADER_EXPORT VkResult VKAPI vkDestroyInstance(
VkInstance instance)
{
struct loader_instance *ptr_instance = (struct loader_instance *) instance;
struct loader_scanned_icds *scanned_icds;
VkResult res;
uint32_t i;
// 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:
for (i = 0; i < ptr_instance->extension_count; i++) {
free(ptr_instance->extension_names[i]);
}
if (prev)
prev->next = next->next;
else
loader.instances = next->next;
break;
}
prev = next;
next = next->next;
}
if (next == NULL) {
// This must be an invalid instance handle or empty list
return VK_ERROR_INVALID_HANDLE;
}
// cleanup any prior layer initializations
loader_deactivate_layer(ptr_instance);
scanned_icds = loader.scanned_icd_list;
while (scanned_icds) {
if (scanned_icds->instance)
res = scanned_icds->DestroyInstance(scanned_icds->instance);
if (res != VK_SUCCESS)
loader_log(VK_DBG_MSG_WARNING, 0,
"ICD ignored: failed to DestroyInstance on device");
scanned_icds->instance = VK_NULL_HANDLE;
scanned_icds = scanned_icds->next;
}
free(ptr_instance);
return VK_SUCCESS;
}
LOADER_EXPORT VkResult VKAPI vkEnumeratePhysicalDevices(
VkInstance instance,
uint32_t* pPhysicalDeviceCount,
VkPhysicalDevice* pPhysicalDevices)
{
struct loader_instance *ptr_instance = (struct loader_instance *) instance;
struct loader_icd *icd;
uint32_t n, count = 0;
VkResult res;
//in spirit of VK don't error check on the instance parameter
icd = ptr_instance->icds;
if (pPhysicalDevices == NULL) {
while (icd) {
res = icd->scanned_icds->EnumeratePhysicalDevices(
icd->scanned_icds->instance,
&n, NULL);
if (res != VK_SUCCESS)
return res;
icd->gpu_count = n;
count += n;
icd = icd->next;
}
ptr_instance->total_gpu_count = count;
} else
{
VkPhysicalDevice* gpus;
if (*pPhysicalDeviceCount < ptr_instance->total_gpu_count)
return VK_ERROR_INVALID_VALUE;
gpus = malloc( sizeof(VkPhysicalDevice) * *pPhysicalDeviceCount);
if (!gpus)
return VK_ERROR_OUT_OF_HOST_MEMORY;
while (icd) {
VkBaseLayerObject * wrapped_gpus;
PFN_vkGetProcAddr get_proc_addr = icd->scanned_icds->GetProcAddr;
res = icd->scanned_icds->EnumeratePhysicalDevices(
icd->scanned_icds->instance,
&n,
gpus);
if (res == VK_SUCCESS && n) {
wrapped_gpus = (VkBaseLayerObject*) malloc(n *
sizeof(VkBaseLayerObject));
icd->gpus = wrapped_gpus;
icd->gpu_count = n;
icd->loader_dispatch = (VkLayerDispatchTable *) malloc(n *
sizeof(VkLayerDispatchTable));
for (unsigned int i = 0; i < n; i++) {
(wrapped_gpus + i)->baseObject = gpus[i];
(wrapped_gpus + i)->pGPA = get_proc_addr;
(wrapped_gpus + i)->nextObject = gpus[i];
memcpy(pPhysicalDevices + count, gpus, sizeof(*pPhysicalDevices));
loader_init_dispatch_table(icd->loader_dispatch + i,
get_proc_addr, gpus[i]);
/* Verify ICD compatibility */
if (!valid_loader_magic_value((void*) gpus[i])) {
loader_log(VK_DBG_MSG_WARNING, 0,
"Loader: Incompatible ICD, first dword must be initialized to ICD_LOADER_MAGIC. See loader/README.md for details.\n");
assert(0);
}
const VkLayerDispatchTable **disp;
disp = (const VkLayerDispatchTable **) gpus[i];
*disp = icd->loader_dispatch + i;
loader_activate_layers(icd, i, ptr_instance->extension_count,
(const char *const*) ptr_instance->extension_names);
}
count += n;
if (count >= *pPhysicalDeviceCount) {
break;
}
}
icd = icd->next;
}
}
*pPhysicalDeviceCount = count;
return (count > 0) ? VK_SUCCESS : res;
}
LOADER_EXPORT void * VKAPI vkGetProcAddr(VkPhysicalDevice gpu, const char * pName)
{
if (gpu == VK_NULL_HANDLE) {
/* return entrypoint addresses that are global (in the loader)*/
return globalGetProcAddr(pName);
}
void *addr;
/* for entrypoints that loader must handle (ie non-dispatchable or create object)
make sure the loader entrypoint is returned */
addr = loader_non_passthrough_gpa(pName);
if (addr) {
return addr;
}
/* return the dispatch table entrypoint for the fastest case */
const VkLayerDispatchTable *disp_table = * (VkLayerDispatchTable **) gpu;
if (disp_table == NULL)
return NULL;
addr = loader_lookup_dispatch_table(disp_table, pName);
if (addr)
return addr;
else {
if (disp_table->GetProcAddr == NULL)
return NULL;
return disp_table->GetProcAddr(gpu, pName);
}
}
//TODO make sure createInstance enables extensions that are valid (loader does)
//TODO make sure CreateDevice enables extensions that are valid (left for layers/drivers to do)
//TODO how is layer extension going to be enabled?
//Need to call createInstance on the layer or something
LOADER_EXPORT VkResult VKAPI vkGetGlobalExtensionInfo(
VkExtensionInfoType infoType,
uint32_t extensionIndex,
size_t* pDataSize,
void* pData)
{
VkExtensionProperties *ext_props;
uint32_t *count;
/* Scan/discover all ICD libraries in a single-threaded manner */
loader_platform_thread_once(&once_icd, loader_icd_scan);
/* get layer libraries in a single-threaded manner */
loader_platform_thread_once(&once_layer, layer_lib_scan);
/* merge any duplicate extensions */
loader_platform_thread_once(&once_exts, loader_coalesce_extensions);
if (pDataSize == NULL)
return VK_ERROR_INVALID_POINTER;
switch (infoType) {
case VK_EXTENSION_INFO_TYPE_COUNT:
*pDataSize = sizeof(uint32_t);
if (pData == NULL)
return VK_SUCCESS;
count = (uint32_t *) pData;
*count = loader.scanned_ext_list_count;
break;
case VK_EXTENSION_INFO_TYPE_PROPERTIES:
*pDataSize = sizeof(VkExtensionProperties);
if (pData == NULL)
return VK_SUCCESS;
if (extensionIndex >= loader.scanned_ext_list_count)
return VK_ERROR_INVALID_VALUE;
ext_props = (VkExtensionProperties *) pData;
ext_props->version = loader.scanned_ext_list[extensionIndex]->version;
strncpy(ext_props->extName, loader.scanned_ext_list[extensionIndex]->extName
, VK_MAX_EXTENSION_NAME);
ext_props->extName[VK_MAX_EXTENSION_NAME - 1] = '\0';
break;
default:
loader_log(VK_DBG_MSG_WARNING, 0, "Invalid infoType in vkGetGlobalExtensionInfo");
return VK_ERROR_INVALID_VALUE;
};
return VK_SUCCESS;
}
LOADER_EXPORT VkResult VKAPI vkEnumerateLayers(VkPhysicalDevice gpu, size_t maxLayerCount, size_t maxStringSize, size_t* pOutLayerCount, char* const* pOutLayers, void* pReserved)
{
uint32_t gpu_index;
size_t count = 0;
char *lib_name;
struct loader_icd *icd = loader_get_icd((const VkBaseLayerObject *) gpu, &gpu_index);
loader_platform_dl_handle handle;
PFN_vkEnumerateLayers fpEnumerateLayers;
char layer_buf[16][256];
char * layers[16];
if (pOutLayerCount == NULL || pOutLayers == NULL)
return VK_ERROR_INVALID_POINTER;
if (!icd)
return VK_ERROR_UNAVAILABLE;
for (int i = 0; i < 16; i++)
layers[i] = &layer_buf[i][0];
for (unsigned int j = 0; j < loader.scanned_layer_count && count < maxLayerCount; j++) {
lib_name = loader.scanned_layers[j].name;
// Used to call: dlopen(*lib_name, RTLD_LAZY)
if ((handle = loader_platform_open_library(lib_name)) == NULL)
continue;
if ((fpEnumerateLayers = loader_platform_get_proc_address(handle, "vkEnumerateLayers")) == NULL) {
//use default layer name based on library name VK_LAYER_LIBRARY_PREFIX<name>.VK_LIBRARY_SUFFIX
char *pEnd, *cpyStr;
size_t siz;
loader_platform_close_library(handle);
lib_name = basename(lib_name);
pEnd = strrchr(lib_name, '.');
siz = (int) (pEnd - lib_name - strlen(VK_LAYER_LIBRARY_PREFIX) + 1);
if (pEnd == NULL || siz <= 0)
continue;
cpyStr = malloc(siz);
if (cpyStr == NULL) {
free(cpyStr);
continue;
}
strncpy(cpyStr, lib_name + strlen(VK_LAYER_LIBRARY_PREFIX), siz);
cpyStr[siz - 1] = '\0';
if (siz > maxStringSize)
siz = (int) maxStringSize;
strncpy((char *) (pOutLayers[count]), cpyStr, siz);
pOutLayers[count][siz - 1] = '\0';
count++;
free(cpyStr);
} else {
size_t cnt;
uint32_t n;
VkResult res;
n = (uint32_t) ((maxStringSize < 256) ? maxStringSize : 256);
res = fpEnumerateLayers((VkPhysicalDevice) NULL, 16, n, &cnt, layers, (char *) icd->gpus + gpu_index);
loader_platform_close_library(handle);
if (res != VK_SUCCESS)
continue;
if (cnt + count > maxLayerCount)
cnt = maxLayerCount - count;
for (uint32_t i = (uint32_t) count; i < cnt + count; i++) {
strncpy((char *) (pOutLayers[i]), (char *) layers[i - count], n);
if (n > 0)
pOutLayers[i - count][n - 1] = '\0';
}
count += cnt;
}
}
*pOutLayerCount = count;
return VK_SUCCESS;
}
LOADER_EXPORT VkResult VKAPI vkDbgRegisterMsgCallback(VkInstance instance, VK_DBG_MSG_CALLBACK_FUNCTION pfnMsgCallback, void* pUserData)
{
const struct loader_icd *icd;
struct loader_instance *inst;
VkResult res;
uint32_t gpu_idx;
if (instance == VK_NULL_HANDLE)
return VK_ERROR_INVALID_HANDLE;
assert(loader.icds_scanned);
for (inst = loader.instances; inst; inst = inst->next) {
if ((VkInstance) inst == instance)
break;
}
if (inst == VK_NULL_HANDLE)
return VK_ERROR_INVALID_HANDLE;
for (icd = inst->icds; icd; icd = icd->next) {
for (uint32_t i = 0; i < icd->gpu_count; i++) {
res = (icd->loader_dispatch + i)->DbgRegisterMsgCallback(icd->scanned_icds->instance,
pfnMsgCallback, pUserData);
if (res != VK_SUCCESS) {
gpu_idx = i;
break;
}
}
if (res != VK_SUCCESS)
break;
}
/* roll back on errors */
if (icd) {
for (const struct loader_icd *tmp = inst->icds; tmp != icd;
tmp = tmp->next) {
for (uint32_t i = 0; i < icd->gpu_count; i++)
(tmp->loader_dispatch + i)->DbgUnregisterMsgCallback(tmp->scanned_icds->instance, pfnMsgCallback);
}
/* and gpus on current icd */
for (uint32_t i = 0; i < gpu_idx; i++)
(icd->loader_dispatch + i)->DbgUnregisterMsgCallback(icd->scanned_icds->instance, pfnMsgCallback);
return res;
}
return VK_SUCCESS;
}
LOADER_EXPORT VkResult VKAPI vkDbgUnregisterMsgCallback(VkInstance instance, VK_DBG_MSG_CALLBACK_FUNCTION pfnMsgCallback)
{
VkResult res = VK_SUCCESS;
struct loader_instance *inst;
if (instance == VK_NULL_HANDLE)
return VK_ERROR_INVALID_HANDLE;
assert(loader.icds_scanned);
for (inst = loader.instances; inst; inst = inst->next) {
if ((VkInstance) inst == instance)
break;
}
if (inst == VK_NULL_HANDLE)
return VK_ERROR_INVALID_HANDLE;
for (const struct loader_icd * icd = inst->icds; icd; icd = icd->next) {
for (uint32_t i = 0; i < icd->gpu_count; i++) {
VkResult r;
r = (icd->loader_dispatch + i)->DbgUnregisterMsgCallback(icd->scanned_icds->instance, pfnMsgCallback);
if (r != VK_SUCCESS) {
res = r;
}
}
}
return res;
}
LOADER_EXPORT VkResult VKAPI vkDbgSetGlobalOption(VkInstance instance, VK_DBG_GLOBAL_OPTION dbgOption, size_t dataSize, const void* pData)
{
VkResult res = VK_SUCCESS;
struct loader_instance *inst;
if (instance == VK_NULL_HANDLE)
return VK_ERROR_INVALID_HANDLE;
assert(loader.icds_scanned);
for (inst = loader.instances; inst; inst = inst->next) {
if ((VkInstance) inst == instance)
break;
}
if (inst == VK_NULL_HANDLE)
return VK_ERROR_INVALID_HANDLE;
for (const struct loader_icd * icd = inst->icds; icd; icd = icd->next) {
for (uint32_t i = 0; i < icd->gpu_count; i++) {
VkResult r;
r = (icd->loader_dispatch + i)->DbgSetGlobalOption(icd->scanned_icds->instance, dbgOption,
dataSize, pData);
/* unfortunately we cannot roll back */
if (r != VK_SUCCESS) {
res = r;
}
}
}
return res;
}