/*
* Copyright 2016 The Android Open Source Project
*
* 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.
*/
// The API layer of the loader defines Vulkan API and manages layers. The
// entrypoints are generated and defined in api_dispatch.cpp. Most of them
// simply find the dispatch table and jump.
//
// There are a few of them requiring manual code for things such as layer
// discovery or chaining. They call into functions defined in this file.
#include <stdlib.h>
#include <string.h>
#include <algorithm>
#include <mutex>
#include <new>
#include <utility>
#include <cutils/properties.h>
#include <log/log.h>
#include <vulkan/vk_layer_interface.h>
#include "api.h"
#include "driver.h"
#include "layers_extensions.h"
namespace vulkan {
namespace api {
namespace {
// Provide overridden layer names when there are implicit layers. No effect
// otherwise.
class OverrideLayerNames {
public:
OverrideLayerNames(bool is_instance, const VkAllocationCallbacks& allocator)
: is_instance_(is_instance),
allocator_(allocator),
scope_(VK_SYSTEM_ALLOCATION_SCOPE_COMMAND),
names_(nullptr),
name_count_(0),
implicit_layers_() {
implicit_layers_.result = VK_SUCCESS;
}
~OverrideLayerNames() {
allocator_.pfnFree(allocator_.pUserData, names_);
allocator_.pfnFree(allocator_.pUserData, implicit_layers_.elements);
allocator_.pfnFree(allocator_.pUserData, implicit_layers_.name_pool);
}
VkResult Parse(const char* const* names, uint32_t count) {
AddImplicitLayers();
const auto& arr = implicit_layers_;
if (arr.result != VK_SUCCESS)
return arr.result;
// no need to override when there is no implicit layer
if (!arr.count)
return VK_SUCCESS;
names_ = AllocateNameArray(arr.count + count);
if (!names_)
return VK_ERROR_OUT_OF_HOST_MEMORY;
// add implicit layer names
for (uint32_t i = 0; i < arr.count; i++)
names_[i] = GetImplicitLayerName(i);
name_count_ = arr.count;
// add explicit layer names
for (uint32_t i = 0; i < count; i++) {
// ignore explicit layers that are also implicit
if (IsImplicitLayer(names[i]))
continue;
names_[name_count_++] = names[i];
}
return VK_SUCCESS;
}
const char* const* Names() const { return names_; }
uint32_t Count() const { return name_count_; }
private:
struct ImplicitLayer {
int priority;
size_t name_offset;
};
struct ImplicitLayerArray {
ImplicitLayer* elements;
uint32_t max_count;
uint32_t count;
char* name_pool;
size_t max_pool_size;
size_t pool_size;
VkResult result;
};
void AddImplicitLayers() {
if (!is_instance_ || !driver::Debuggable())
return;
ParseDebugVulkanLayers();
property_list(ParseDebugVulkanLayer, this);
// sort by priorities
auto& arr = implicit_layers_;
std::sort(arr.elements, arr.elements + arr.count,
[](const ImplicitLayer& a, const ImplicitLayer& b) {
return (a.priority < b.priority);
});
}
void ParseDebugVulkanLayers() {
// debug.vulkan.layers specifies colon-separated layer names
char prop[PROPERTY_VALUE_MAX];
if (!property_get("debug.vulkan.layers", prop, ""))
return;
// assign negative/high priorities to them
int prio = -PROPERTY_VALUE_MAX;
const char* p = prop;
const char* delim;
while ((delim = strchr(p, ':'))) {
if (delim > p)
AddImplicitLayer(prio, p, static_cast<size_t>(delim - p));
prio++;
p = delim + 1;
}
if (p[0] != '\0')
AddImplicitLayer(prio, p, strlen(p));
}
static void ParseDebugVulkanLayer(const char* key,
const char* val,
void* user_data) {
static const char prefix[] = "debug.vulkan.layer.";
const size_t prefix_len = sizeof(prefix) - 1;
if (strncmp(key, prefix, prefix_len) || val[0] == '\0')
return;
key += prefix_len;
// debug.vulkan.layer.<priority>
int priority = -1;
if (key[0] >= '0' && key[0] <= '9')
priority = atoi(key);
if (priority < 0) {
ALOGW("Ignored implicit layer %s with invalid priority %s", val,
key);
return;
}
OverrideLayerNames& override_layers =
*reinterpret_cast<OverrideLayerNames*>(user_data);
override_layers.AddImplicitLayer(priority, val, strlen(val));
}
void AddImplicitLayer(int priority, const char* name, size_t len) {
if (!GrowImplicitLayerArray(1, 0))
return;
auto& arr = implicit_layers_;
auto& layer = arr.elements[arr.count++];
layer.priority = priority;
layer.name_offset = AddImplicitLayerName(name, len);
ALOGV("Added implicit layer %s", GetImplicitLayerName(arr.count - 1));
}
size_t AddImplicitLayerName(const char* name, size_t len) {
if (!GrowImplicitLayerArray(0, len + 1))
return 0;
// add the name to the pool
auto& arr = implicit_layers_;
size_t offset = arr.pool_size;
char* dst = arr.name_pool + offset;
std::copy(name, name + len, dst);
dst[len] = '\0';
arr.pool_size += len + 1;
return offset;
}
bool GrowImplicitLayerArray(uint32_t layer_count, size_t name_size) {
const uint32_t initial_max_count = 16;
const size_t initial_max_pool_size = 512;
auto& arr = implicit_layers_;
// grow the element array if needed
while (arr.count + layer_count > arr.max_count) {
uint32_t new_max_count =
(arr.max_count) ? (arr.max_count << 1) : initial_max_count;
void* new_mem = nullptr;
if (new_max_count > arr.max_count) {
new_mem = allocator_.pfnReallocation(
allocator_.pUserData, arr.elements,
sizeof(ImplicitLayer) * new_max_count,
alignof(ImplicitLayer), scope_);
}
if (!new_mem) {
arr.result = VK_ERROR_OUT_OF_HOST_MEMORY;
arr.count = 0;
return false;
}
arr.elements = reinterpret_cast<ImplicitLayer*>(new_mem);
arr.max_count = new_max_count;
}
// grow the name pool if needed
while (arr.pool_size + name_size > arr.max_pool_size) {
size_t new_max_pool_size = (arr.max_pool_size)
? (arr.max_pool_size << 1)
: initial_max_pool_size;
void* new_mem = nullptr;
if (new_max_pool_size > arr.max_pool_size) {
new_mem = allocator_.pfnReallocation(
allocator_.pUserData, arr.name_pool, new_max_pool_size,
alignof(char), scope_);
}
if (!new_mem) {
arr.result = VK_ERROR_OUT_OF_HOST_MEMORY;
arr.pool_size = 0;
return false;
}
arr.name_pool = reinterpret_cast<char*>(new_mem);
arr.max_pool_size = new_max_pool_size;
}
return true;
}
const char* GetImplicitLayerName(uint32_t index) const {
const auto& arr = implicit_layers_;
// this may return nullptr when arr.result is not VK_SUCCESS
return implicit_layers_.name_pool + arr.elements[index].name_offset;
}
bool IsImplicitLayer(const char* name) const {
const auto& arr = implicit_layers_;
for (uint32_t i = 0; i < arr.count; i++) {
if (strcmp(name, GetImplicitLayerName(i)) == 0)
return true;
}
return false;
}
const char** AllocateNameArray(uint32_t count) const {
return reinterpret_cast<const char**>(allocator_.pfnAllocation(
allocator_.pUserData, sizeof(const char*) * count,
alignof(const char*), scope_));
}
const bool is_instance_;
const VkAllocationCallbacks& allocator_;
const VkSystemAllocationScope scope_;
const char** names_;
uint32_t name_count_;
ImplicitLayerArray implicit_layers_;
};
// Provide overridden extension names when there are implicit extensions.
// No effect otherwise.
//
// This is used only to enable VK_EXT_debug_report.
class OverrideExtensionNames {
public:
OverrideExtensionNames(bool is_instance,
const VkAllocationCallbacks& allocator)
: is_instance_(is_instance),
allocator_(allocator),
scope_(VK_SYSTEM_ALLOCATION_SCOPE_COMMAND),
names_(nullptr),
name_count_(0),
install_debug_callback_(false) {}
~OverrideExtensionNames() {
allocator_.pfnFree(allocator_.pUserData, names_);
}
VkResult Parse(const char* const* names, uint32_t count) {
// this is only for debug.vulkan.enable_callback
if (!EnableDebugCallback())
return VK_SUCCESS;
names_ = AllocateNameArray(count + 1);
if (!names_)
return VK_ERROR_OUT_OF_HOST_MEMORY;
std::copy(names, names + count, names_);
name_count_ = count;
names_[name_count_++] = "VK_EXT_debug_report";
install_debug_callback_ = true;
return VK_SUCCESS;
}
const char* const* Names() const { return names_; }
uint32_t Count() const { return name_count_; }
bool InstallDebugCallback() const { return install_debug_callback_; }
private:
bool EnableDebugCallback() const {
return (is_instance_ && driver::Debuggable() &&
property_get_bool("debug.vulkan.enable_callback", false));
}
const char** AllocateNameArray(uint32_t count) const {
return reinterpret_cast<const char**>(allocator_.pfnAllocation(
allocator_.pUserData, sizeof(const char*) * count,
alignof(const char*), scope_));
}
const bool is_instance_;
const VkAllocationCallbacks& allocator_;
const VkSystemAllocationScope scope_;
const char** names_;
uint32_t name_count_;
bool install_debug_callback_;
};
// vkCreateInstance and vkCreateDevice helpers with support for layer
// chaining.
class LayerChain {
public:
struct ActiveLayer {
LayerRef ref;
union {
VkLayerInstanceLink instance_link;
VkLayerDeviceLink device_link;
};
};
static VkResult CreateInstance(const VkInstanceCreateInfo* create_info,
const VkAllocationCallbacks* allocator,
VkInstance* instance_out);
static VkResult CreateDevice(VkPhysicalDevice physical_dev,
const VkDeviceCreateInfo* create_info,
const VkAllocationCallbacks* allocator,
VkDevice* dev_out);
static void DestroyInstance(VkInstance instance,
const VkAllocationCallbacks* allocator);
static void DestroyDevice(VkDevice dev,
const VkAllocationCallbacks* allocator);
static const ActiveLayer* GetActiveLayers(VkPhysicalDevice physical_dev,
uint32_t& count);
private:
LayerChain(bool is_instance,
const driver::DebugReportLogger& logger,
const VkAllocationCallbacks& allocator);
~LayerChain();
VkResult ActivateLayers(const char* const* layer_names,
uint32_t layer_count,
const char* const* extension_names,
uint32_t extension_count);
VkResult ActivateLayers(VkPhysicalDevice physical_dev,
const char* const* layer_names,
uint32_t layer_count,
const char* const* extension_names,
uint32_t extension_count);
ActiveLayer* AllocateLayerArray(uint32_t count) const;
VkResult LoadLayer(ActiveLayer& layer, const char* name);
void SetupLayerLinks();
bool Empty() const;
void ModifyCreateInfo(VkInstanceCreateInfo& info);
void ModifyCreateInfo(VkDeviceCreateInfo& info);
VkResult Create(const VkInstanceCreateInfo* create_info,
const VkAllocationCallbacks* allocator,
VkInstance* instance_out);
VkResult Create(VkPhysicalDevice physical_dev,
const VkDeviceCreateInfo* create_info,
const VkAllocationCallbacks* allocator,
VkDevice* dev_out);
VkResult ValidateExtensions(const char* const* extension_names,
uint32_t extension_count);
VkResult ValidateExtensions(VkPhysicalDevice physical_dev,
const char* const* extension_names,
uint32_t extension_count);
VkExtensionProperties* AllocateDriverExtensionArray(uint32_t count) const;
bool IsLayerExtension(const char* name) const;
bool IsDriverExtension(const char* name) const;
template <typename DataType>
void StealLayers(DataType& data);
static void DestroyLayers(ActiveLayer* layers,
uint32_t count,
const VkAllocationCallbacks& allocator);
static VKAPI_ATTR VkResult SetInstanceLoaderData(VkInstance instance,
void* object);
static VKAPI_ATTR VkResult SetDeviceLoaderData(VkDevice device,
void* object);
static VKAPI_ATTR VkBool32
DebugReportCallback(VkDebugReportFlagsEXT flags,
VkDebugReportObjectTypeEXT obj_type,
uint64_t obj,
size_t location,
int32_t msg_code,
const char* layer_prefix,
const char* msg,
void* user_data);
const bool is_instance_;
const driver::DebugReportLogger& logger_;
const VkAllocationCallbacks& allocator_;
OverrideLayerNames override_layers_;
OverrideExtensionNames override_extensions_;
ActiveLayer* layers_;
uint32_t layer_count_;
PFN_vkGetInstanceProcAddr get_instance_proc_addr_;
PFN_vkGetDeviceProcAddr get_device_proc_addr_;
union {
VkLayerInstanceCreateInfo instance_chain_info_[2];
VkLayerDeviceCreateInfo device_chain_info_[2];
};
VkExtensionProperties* driver_extensions_;
uint32_t driver_extension_count_;
std::bitset<driver::ProcHook::EXTENSION_COUNT> enabled_extensions_;
};
LayerChain::LayerChain(bool is_instance,
const driver::DebugReportLogger& logger,
const VkAllocationCallbacks& allocator)
: is_instance_(is_instance),
logger_(logger),
allocator_(allocator),
override_layers_(is_instance, allocator),
override_extensions_(is_instance, allocator),
layers_(nullptr),
layer_count_(0),
get_instance_proc_addr_(nullptr),
get_device_proc_addr_(nullptr),
driver_extensions_(nullptr),
driver_extension_count_(0) {
enabled_extensions_.set(driver::ProcHook::EXTENSION_CORE);
}
LayerChain::~LayerChain() {
allocator_.pfnFree(allocator_.pUserData, driver_extensions_);
DestroyLayers(layers_, layer_count_, allocator_);
}
VkResult LayerChain::ActivateLayers(const char* const* layer_names,
uint32_t layer_count,
const char* const* extension_names,
uint32_t extension_count) {
VkResult result = override_layers_.Parse(layer_names, layer_count);
if (result != VK_SUCCESS)
return result;
result = override_extensions_.Parse(extension_names, extension_count);
if (result != VK_SUCCESS)
return result;
if (override_layers_.Count()) {
layer_names = override_layers_.Names();
layer_count = override_layers_.Count();
}
if (!layer_count) {
// point head of chain to the driver
get_instance_proc_addr_ = driver::GetInstanceProcAddr;
return VK_SUCCESS;
}
layers_ = AllocateLayerArray(layer_count);
if (!layers_)
return VK_ERROR_OUT_OF_HOST_MEMORY;
// load layers
for (uint32_t i = 0; i < layer_count; i++) {
result = LoadLayer(layers_[i], layer_names[i]);
if (result != VK_SUCCESS)
return result;
// count loaded layers for proper destructions on errors
layer_count_++;
}
SetupLayerLinks();
return VK_SUCCESS;
}
VkResult LayerChain::ActivateLayers(VkPhysicalDevice physical_dev,
const char* const* layer_names,
uint32_t layer_count,
const char* const* extension_names,
uint32_t extension_count) {
uint32_t instance_layer_count;
const ActiveLayer* instance_layers =
GetActiveLayers(physical_dev, instance_layer_count);
// log a message if the application device layer array is not empty nor an
// exact match of the instance layer array.
if (layer_count) {
bool exact_match = (instance_layer_count == layer_count);
if (exact_match) {
for (uint32_t i = 0; i < instance_layer_count; i++) {
const Layer& l = *instance_layers[i].ref;
if (strcmp(GetLayerProperties(l).layerName, layer_names[i])) {
exact_match = false;
break;
}
}
}
if (!exact_match) {
logger_.Warn(physical_dev,
"Device layers disagree with instance layers and are "
"overridden by instance layers");
}
}
VkResult result =
override_extensions_.Parse(extension_names, extension_count);
if (result != VK_SUCCESS)
return result;
if (!instance_layer_count) {
// point head of chain to the driver
get_instance_proc_addr_ = driver::GetInstanceProcAddr;
get_device_proc_addr_ = driver::GetDeviceProcAddr;
return VK_SUCCESS;
}
layers_ = AllocateLayerArray(instance_layer_count);
if (!layers_)
return VK_ERROR_OUT_OF_HOST_MEMORY;
for (uint32_t i = 0; i < instance_layer_count; i++) {
const Layer& l = *instance_layers[i].ref;
// no need to and cannot chain non-global layers
if (!IsLayerGlobal(l))
continue;
// this never fails
new (&layers_[layer_count_++]) ActiveLayer{GetLayerRef(l), {}};
}
// this may happen when all layers are non-global ones
if (!layer_count_) {
get_instance_proc_addr_ = driver::GetInstanceProcAddr;
get_device_proc_addr_ = driver::GetDeviceProcAddr;
return VK_SUCCESS;
}
SetupLayerLinks();
return VK_SUCCESS;
}
LayerChain::ActiveLayer* LayerChain::AllocateLayerArray(uint32_t count) const {
VkSystemAllocationScope scope = (is_instance_)
? VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE
: VK_SYSTEM_ALLOCATION_SCOPE_COMMAND;
return reinterpret_cast<ActiveLayer*>(allocator_.pfnAllocation(
allocator_.pUserData, sizeof(ActiveLayer) * count, alignof(ActiveLayer),
scope));
}
VkResult LayerChain::LoadLayer(ActiveLayer& layer, const char* name) {
const Layer* l = FindLayer(name);
if (!l) {
logger_.Err(VK_NULL_HANDLE, "Failed to find layer %s", name);
return VK_ERROR_LAYER_NOT_PRESENT;
}
new (&layer) ActiveLayer{GetLayerRef(*l), {}};
if (!layer.ref) {
ALOGW("Failed to open layer %s", name);
layer.ref.~LayerRef();
return VK_ERROR_LAYER_NOT_PRESENT;
}
ALOGI("Loaded layer %s", name);
return VK_SUCCESS;
}
void LayerChain::SetupLayerLinks() {
if (is_instance_) {
for (uint32_t i = 0; i < layer_count_; i++) {
ActiveLayer& layer = layers_[i];
// point head of chain to the first layer
if (i == 0)
get_instance_proc_addr_ = layer.ref.GetGetInstanceProcAddr();
// point tail of chain to the driver
if (i == layer_count_ - 1) {
layer.instance_link.pNext = nullptr;
layer.instance_link.pfnNextGetInstanceProcAddr =
driver::GetInstanceProcAddr;
break;
}
const ActiveLayer& next = layers_[i + 1];
// const_cast as some naughty layers want to modify our links!
layer.instance_link.pNext =
const_cast<VkLayerInstanceLink*>(&next.instance_link);
layer.instance_link.pfnNextGetInstanceProcAddr =
next.ref.GetGetInstanceProcAddr();
}
} else {
for (uint32_t i = 0; i < layer_count_; i++) {
ActiveLayer& layer = layers_[i];
// point head of chain to the first layer
if (i == 0) {
get_instance_proc_addr_ = layer.ref.GetGetInstanceProcAddr();
get_device_proc_addr_ = layer.ref.GetGetDeviceProcAddr();
}
// point tail of chain to the driver
if (i == layer_count_ - 1) {
layer.device_link.pNext = nullptr;
layer.device_link.pfnNextGetInstanceProcAddr =
driver::GetInstanceProcAddr;
layer.device_link.pfnNextGetDeviceProcAddr =
driver::GetDeviceProcAddr;
break;
}
const ActiveLayer& next = layers_[i + 1];
// const_cast as some naughty layers want to modify our links!
layer.device_link.pNext =
const_cast<VkLayerDeviceLink*>(&next.device_link);
layer.device_link.pfnNextGetInstanceProcAddr =
next.ref.GetGetInstanceProcAddr();
layer.device_link.pfnNextGetDeviceProcAddr =
next.ref.GetGetDeviceProcAddr();
}
}
}
bool LayerChain::Empty() const {
return (!layer_count_ && !override_layers_.Count() &&
!override_extensions_.Count());
}
void LayerChain::ModifyCreateInfo(VkInstanceCreateInfo& info) {
if (layer_count_) {
auto& link_info = instance_chain_info_[1];
link_info.sType = VK_STRUCTURE_TYPE_LOADER_INSTANCE_CREATE_INFO;
link_info.pNext = info.pNext;
link_info.function = VK_LAYER_FUNCTION_LINK;
link_info.u.pLayerInfo = &layers_[0].instance_link;
auto& cb_info = instance_chain_info_[0];
cb_info.sType = VK_STRUCTURE_TYPE_LOADER_INSTANCE_CREATE_INFO;
cb_info.pNext = &link_info;
cb_info.function = VK_LAYER_FUNCTION_DATA_CALLBACK;
cb_info.u.pfnSetInstanceLoaderData = SetInstanceLoaderData;
info.pNext = &cb_info;
}
if (override_layers_.Count()) {
info.enabledLayerCount = override_layers_.Count();
info.ppEnabledLayerNames = override_layers_.Names();
}
if (override_extensions_.Count()) {
info.enabledExtensionCount = override_extensions_.Count();
info.ppEnabledExtensionNames = override_extensions_.Names();
}
}
void LayerChain::ModifyCreateInfo(VkDeviceCreateInfo& info) {
if (layer_count_) {
auto& link_info = device_chain_info_[1];
link_info.sType = VK_STRUCTURE_TYPE_LOADER_DEVICE_CREATE_INFO;
link_info.pNext = info.pNext;
link_info.function = VK_LAYER_FUNCTION_LINK;
link_info.u.pLayerInfo = &layers_[0].device_link;
auto& cb_info = device_chain_info_[0];
cb_info.sType = VK_STRUCTURE_TYPE_LOADER_DEVICE_CREATE_INFO;
cb_info.pNext = &link_info;
cb_info.function = VK_LAYER_FUNCTION_DATA_CALLBACK;
cb_info.u.pfnSetDeviceLoaderData = SetDeviceLoaderData;
info.pNext = &cb_info;
}
if (override_layers_.Count()) {
info.enabledLayerCount = override_layers_.Count();
info.ppEnabledLayerNames = override_layers_.Names();
}
if (override_extensions_.Count()) {
info.enabledExtensionCount = override_extensions_.Count();
info.ppEnabledExtensionNames = override_extensions_.Names();
}
}
VkResult LayerChain::Create(const VkInstanceCreateInfo* create_info,
const VkAllocationCallbacks* allocator,
VkInstance* instance_out) {
VkResult result = ValidateExtensions(create_info->ppEnabledExtensionNames,
create_info->enabledExtensionCount);
if (result != VK_SUCCESS)
return result;
// call down the chain
PFN_vkCreateInstance create_instance =
reinterpret_cast<PFN_vkCreateInstance>(
get_instance_proc_addr_(VK_NULL_HANDLE, "vkCreateInstance"));
VkInstance instance;
result = create_instance(create_info, allocator, &instance);
if (result != VK_SUCCESS)
return result;
// initialize InstanceData
InstanceData& data = GetData(instance);
if (!InitDispatchTable(instance, get_instance_proc_addr_,
enabled_extensions_)) {
if (data.dispatch.DestroyInstance)
data.dispatch.DestroyInstance(instance, allocator);
return VK_ERROR_INITIALIZATION_FAILED;
}
// install debug report callback
if (override_extensions_.InstallDebugCallback()) {
PFN_vkCreateDebugReportCallbackEXT create_debug_report_callback =
reinterpret_cast<PFN_vkCreateDebugReportCallbackEXT>(
get_instance_proc_addr_(instance,
"vkCreateDebugReportCallbackEXT"));
data.destroy_debug_callback =
reinterpret_cast<PFN_vkDestroyDebugReportCallbackEXT>(
get_instance_proc_addr_(instance,
"vkDestroyDebugReportCallbackEXT"));
if (!create_debug_report_callback || !data.destroy_debug_callback) {
ALOGE("Broken VK_EXT_debug_report support");
data.dispatch.DestroyInstance(instance, allocator);
return VK_ERROR_INITIALIZATION_FAILED;
}
VkDebugReportCallbackCreateInfoEXT debug_callback_info = {};
debug_callback_info.sType =
VK_STRUCTURE_TYPE_DEBUG_REPORT_CREATE_INFO_EXT;
debug_callback_info.flags =
VK_DEBUG_REPORT_ERROR_BIT_EXT | VK_DEBUG_REPORT_WARNING_BIT_EXT;
debug_callback_info.pfnCallback = DebugReportCallback;
VkDebugReportCallbackEXT debug_callback;
result = create_debug_report_callback(instance, &debug_callback_info,
nullptr, &debug_callback);
if (result != VK_SUCCESS) {
ALOGE("Failed to install debug report callback");
data.dispatch.DestroyInstance(instance, allocator);
return VK_ERROR_INITIALIZATION_FAILED;
}
data.debug_callback = debug_callback;
ALOGI("Installed debug report callback");
}
StealLayers(data);
*instance_out = instance;
return VK_SUCCESS;
}
VkResult LayerChain::Create(VkPhysicalDevice physical_dev,
const VkDeviceCreateInfo* create_info,
const VkAllocationCallbacks* allocator,
VkDevice* dev_out) {
VkResult result =
ValidateExtensions(physical_dev, create_info->ppEnabledExtensionNames,
create_info->enabledExtensionCount);
if (result != VK_SUCCESS)
return result;
// call down the chain
PFN_vkCreateDevice create_device =
GetData(physical_dev).dispatch.CreateDevice;
VkDevice dev;
result = create_device(physical_dev, create_info, allocator, &dev);
if (result != VK_SUCCESS)
return result;
// initialize DeviceData
DeviceData& data = GetData(dev);
if (!InitDispatchTable(dev, get_device_proc_addr_, enabled_extensions_)) {
if (data.dispatch.DestroyDevice)
data.dispatch.DestroyDevice(dev, allocator);
return VK_ERROR_INITIALIZATION_FAILED;
}
// no StealLayers so that active layers are destroyed with this
// LayerChain
*dev_out = dev;
return VK_SUCCESS;
}
VkResult LayerChain::ValidateExtensions(const char* const* extension_names,
uint32_t extension_count) {
if (!extension_count)
return VK_SUCCESS;
// query driver instance extensions
uint32_t count;
VkResult result =
EnumerateInstanceExtensionProperties(nullptr, &count, nullptr);
if (result == VK_SUCCESS && count) {
driver_extensions_ = AllocateDriverExtensionArray(count);
result = (driver_extensions_) ? EnumerateInstanceExtensionProperties(
nullptr, &count, driver_extensions_)
: VK_ERROR_OUT_OF_HOST_MEMORY;
}
if (result != VK_SUCCESS)
return result;
driver_extension_count_ = count;
for (uint32_t i = 0; i < extension_count; i++) {
const char* name = extension_names[i];
if (!IsLayerExtension(name) && !IsDriverExtension(name)) {
logger_.Err(VK_NULL_HANDLE,
"Failed to enable missing instance extension %s", name);
return VK_ERROR_EXTENSION_NOT_PRESENT;
}
auto ext_bit = driver::GetProcHookExtension(name);
if (ext_bit != driver::ProcHook::EXTENSION_UNKNOWN)
enabled_extensions_.set(ext_bit);
}
return VK_SUCCESS;
}
VkResult LayerChain::ValidateExtensions(VkPhysicalDevice physical_dev,
const char* const* extension_names,
uint32_t extension_count) {
if (!extension_count)
return VK_SUCCESS;
// query driver device extensions
uint32_t count;
VkResult result = EnumerateDeviceExtensionProperties(physical_dev, nullptr,
&count, nullptr);
if (result == VK_SUCCESS && count) {
driver_extensions_ = AllocateDriverExtensionArray(count);
result = (driver_extensions_)
? EnumerateDeviceExtensionProperties(
physical_dev, nullptr, &count, driver_extensions_)
: VK_ERROR_OUT_OF_HOST_MEMORY;
}
if (result != VK_SUCCESS)
return result;
driver_extension_count_ = count;
for (uint32_t i = 0; i < extension_count; i++) {
const char* name = extension_names[i];
if (!IsLayerExtension(name) && !IsDriverExtension(name)) {
logger_.Err(physical_dev,
"Failed to enable missing device extension %s", name);
return VK_ERROR_EXTENSION_NOT_PRESENT;
}
auto ext_bit = driver::GetProcHookExtension(name);
if (ext_bit != driver::ProcHook::EXTENSION_UNKNOWN)
enabled_extensions_.set(ext_bit);
}
return VK_SUCCESS;
}
VkExtensionProperties* LayerChain::AllocateDriverExtensionArray(
uint32_t count) const {
return reinterpret_cast<VkExtensionProperties*>(allocator_.pfnAllocation(
allocator_.pUserData, sizeof(VkExtensionProperties) * count,
alignof(VkExtensionProperties), VK_SYSTEM_ALLOCATION_SCOPE_COMMAND));
}
bool LayerChain::IsLayerExtension(const char* name) const {
if (is_instance_) {
for (uint32_t i = 0; i < layer_count_; i++) {
const ActiveLayer& layer = layers_[i];
if (FindLayerInstanceExtension(*layer.ref, name))
return true;
}
} else {
for (uint32_t i = 0; i < layer_count_; i++) {
const ActiveLayer& layer = layers_[i];
if (FindLayerDeviceExtension(*layer.ref, name))
return true;
}
}
return false;
}
bool LayerChain::IsDriverExtension(const char* name) const {
for (uint32_t i = 0; i < driver_extension_count_; i++) {
if (strcmp(driver_extensions_[i].extensionName, name) == 0)
return true;
}
return false;
}
template <typename DataType>
void LayerChain::StealLayers(DataType& data) {
data.layers = layers_;
data.layer_count = layer_count_;
layers_ = nullptr;
layer_count_ = 0;
}
void LayerChain::DestroyLayers(ActiveLayer* layers,
uint32_t count,
const VkAllocationCallbacks& allocator) {
for (uint32_t i = 0; i < count; i++)
layers[i].ref.~LayerRef();
allocator.pfnFree(allocator.pUserData, layers);
}
VkResult LayerChain::SetInstanceLoaderData(VkInstance instance, void* object) {
driver::InstanceDispatchable dispatchable =
reinterpret_cast<driver::InstanceDispatchable>(object);
return (driver::SetDataInternal(dispatchable, &driver::GetData(instance)))
? VK_SUCCESS
: VK_ERROR_INITIALIZATION_FAILED;
}
VkResult LayerChain::SetDeviceLoaderData(VkDevice device, void* object) {
driver::DeviceDispatchable dispatchable =
reinterpret_cast<driver::DeviceDispatchable>(object);
return (driver::SetDataInternal(dispatchable, &driver::GetData(device)))
? VK_SUCCESS
: VK_ERROR_INITIALIZATION_FAILED;
}
VkBool32 LayerChain::DebugReportCallback(VkDebugReportFlagsEXT flags,
VkDebugReportObjectTypeEXT obj_type,
uint64_t obj,
size_t location,
int32_t msg_code,
const char* layer_prefix,
const char* msg,
void* user_data) {
int prio;
if (flags & VK_DEBUG_REPORT_ERROR_BIT_EXT)
prio = ANDROID_LOG_ERROR;
else if (flags & (VK_DEBUG_REPORT_WARNING_BIT_EXT |
VK_DEBUG_REPORT_PERFORMANCE_WARNING_BIT_EXT))
prio = ANDROID_LOG_WARN;
else if (flags & VK_DEBUG_REPORT_INFORMATION_BIT_EXT)
prio = ANDROID_LOG_INFO;
else if (flags & VK_DEBUG_REPORT_DEBUG_BIT_EXT)
prio = ANDROID_LOG_DEBUG;
else
prio = ANDROID_LOG_UNKNOWN;
LOG_PRI(prio, LOG_TAG, "[%s] Code %d : %s", layer_prefix, msg_code, msg);
(void)obj_type;
(void)obj;
(void)location;
(void)user_data;
return false;
}
VkResult LayerChain::CreateInstance(const VkInstanceCreateInfo* create_info,
const VkAllocationCallbacks* allocator,
VkInstance* instance_out) {
LayerChain chain(true, driver::DebugReportLogger(*create_info),
(allocator) ? *allocator : driver::GetDefaultAllocator());
VkResult result = chain.ActivateLayers(create_info->ppEnabledLayerNames,
create_info->enabledLayerCount,
create_info->ppEnabledExtensionNames,
create_info->enabledExtensionCount);
if (result != VK_SUCCESS)
return result;
// use a local create info when the chain is not empty
VkInstanceCreateInfo local_create_info;
if (!chain.Empty()) {
local_create_info = *create_info;
chain.ModifyCreateInfo(local_create_info);
create_info = &local_create_info;
}
return chain.Create(create_info, allocator, instance_out);
}
VkResult LayerChain::CreateDevice(VkPhysicalDevice physical_dev,
const VkDeviceCreateInfo* create_info,
const VkAllocationCallbacks* allocator,
VkDevice* dev_out) {
LayerChain chain(
false, driver::Logger(physical_dev),
(allocator) ? *allocator : driver::GetData(physical_dev).allocator);
VkResult result = chain.ActivateLayers(
physical_dev, create_info->ppEnabledLayerNames,
create_info->enabledLayerCount, create_info->ppEnabledExtensionNames,
create_info->enabledExtensionCount);
if (result != VK_SUCCESS)
return result;
// use a local create info when the chain is not empty
VkDeviceCreateInfo local_create_info;
if (!chain.Empty()) {
local_create_info = *create_info;
chain.ModifyCreateInfo(local_create_info);
create_info = &local_create_info;
}
return chain.Create(physical_dev, create_info, allocator, dev_out);
}
void LayerChain::DestroyInstance(VkInstance instance,
const VkAllocationCallbacks* allocator) {
InstanceData& data = GetData(instance);
if (data.debug_callback != VK_NULL_HANDLE)
data.destroy_debug_callback(instance, data.debug_callback, allocator);
ActiveLayer* layers = reinterpret_cast<ActiveLayer*>(data.layers);
uint32_t layer_count = data.layer_count;
VkAllocationCallbacks local_allocator;
if (!allocator)
local_allocator = driver::GetData(instance).allocator;
// this also destroys InstanceData
data.dispatch.DestroyInstance(instance, allocator);
DestroyLayers(layers, layer_count,
(allocator) ? *allocator : local_allocator);
}
void LayerChain::DestroyDevice(VkDevice device,
const VkAllocationCallbacks* allocator) {
DeviceData& data = GetData(device);
// this also destroys DeviceData
data.dispatch.DestroyDevice(device, allocator);
}
const LayerChain::ActiveLayer* LayerChain::GetActiveLayers(
VkPhysicalDevice physical_dev,
uint32_t& count) {
count = GetData(physical_dev).layer_count;
return reinterpret_cast<const ActiveLayer*>(GetData(physical_dev).layers);
}
// ----------------------------------------------------------------------------
bool EnsureInitialized() {
static std::once_flag once_flag;
static bool initialized;
std::call_once(once_flag, []() {
if (driver::OpenHAL()) {
DiscoverLayers();
initialized = true;
}
});
return initialized;
}
} // anonymous namespace
VkResult CreateInstance(const VkInstanceCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator,
VkInstance* pInstance) {
if (!EnsureInitialized())
return VK_ERROR_INITIALIZATION_FAILED;
return LayerChain::CreateInstance(pCreateInfo, pAllocator, pInstance);
}
void DestroyInstance(VkInstance instance,
const VkAllocationCallbacks* pAllocator) {
if (instance != VK_NULL_HANDLE)
LayerChain::DestroyInstance(instance, pAllocator);
}
VkResult CreateDevice(VkPhysicalDevice physicalDevice,
const VkDeviceCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator,
VkDevice* pDevice) {
return LayerChain::CreateDevice(physicalDevice, pCreateInfo, pAllocator,
pDevice);
}
void DestroyDevice(VkDevice device, const VkAllocationCallbacks* pAllocator) {
if (device != VK_NULL_HANDLE)
LayerChain::DestroyDevice(device, pAllocator);
}
VkResult EnumerateInstanceLayerProperties(uint32_t* pPropertyCount,
VkLayerProperties* pProperties) {
if (!EnsureInitialized())
return VK_ERROR_INITIALIZATION_FAILED;
uint32_t count = GetLayerCount();
if (!pProperties) {
*pPropertyCount = count;
return VK_SUCCESS;
}
uint32_t copied = std::min(*pPropertyCount, count);
for (uint32_t i = 0; i < copied; i++)
pProperties[i] = GetLayerProperties(GetLayer(i));
*pPropertyCount = copied;
return (copied == count) ? VK_SUCCESS : VK_INCOMPLETE;
}
VkResult EnumerateInstanceExtensionProperties(
const char* pLayerName,
uint32_t* pPropertyCount,
VkExtensionProperties* pProperties) {
if (!EnsureInitialized())
return VK_ERROR_INITIALIZATION_FAILED;
if (pLayerName) {
const Layer* layer = FindLayer(pLayerName);
if (!layer)
return VK_ERROR_LAYER_NOT_PRESENT;
uint32_t count;
const VkExtensionProperties* props =
GetLayerInstanceExtensions(*layer, count);
if (!pProperties || *pPropertyCount > count)
*pPropertyCount = count;
if (pProperties)
std::copy(props, props + *pPropertyCount, pProperties);
return *pPropertyCount < count ? VK_INCOMPLETE : VK_SUCCESS;
}
// TODO how about extensions from implicitly enabled layers?
return vulkan::driver::EnumerateInstanceExtensionProperties(
nullptr, pPropertyCount, pProperties);
}
VkResult EnumerateDeviceLayerProperties(VkPhysicalDevice physicalDevice,
uint32_t* pPropertyCount,
VkLayerProperties* pProperties) {
uint32_t count;
const LayerChain::ActiveLayer* layers =
LayerChain::GetActiveLayers(physicalDevice, count);
if (!pProperties) {
*pPropertyCount = count;
return VK_SUCCESS;
}
uint32_t copied = std::min(*pPropertyCount, count);
for (uint32_t i = 0; i < copied; i++)
pProperties[i] = GetLayerProperties(*layers[i].ref);
*pPropertyCount = copied;
return (copied == count) ? VK_SUCCESS : VK_INCOMPLETE;
}
VkResult EnumerateDeviceExtensionProperties(
VkPhysicalDevice physicalDevice,
const char* pLayerName,
uint32_t* pPropertyCount,
VkExtensionProperties* pProperties) {
if (pLayerName) {
// EnumerateDeviceLayerProperties enumerates active layers for
// backward compatibility. The extension query here should work for
// all layers.
const Layer* layer = FindLayer(pLayerName);
if (!layer)
return VK_ERROR_LAYER_NOT_PRESENT;
uint32_t count;
const VkExtensionProperties* props =
GetLayerDeviceExtensions(*layer, count);
if (!pProperties || *pPropertyCount > count)
*pPropertyCount = count;
if (pProperties)
std::copy(props, props + *pPropertyCount, pProperties);
return *pPropertyCount < count ? VK_INCOMPLETE : VK_SUCCESS;
}
// TODO how about extensions from implicitly enabled layers?
const InstanceData& data = GetData(physicalDevice);
return data.dispatch.EnumerateDeviceExtensionProperties(
physicalDevice, nullptr, pPropertyCount, pProperties);
}
} // namespace api
} // namespace vulkan