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/*
* Copyright (c) 2015-2016 Valve Corporation
* Copyright (c) 2015-2016 LunarG, 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: Jeremy Hayes <jeremy@lunarg.com>
*/
#include <cassert>
#include <iostream>
#include <unordered_map>
#include <vector>
#include "vk_dispatch_table_helper.h"
#include "vk_layer_data.h"
#include "vk_layer_extension_utils.h"
namespace test
{
struct layer_data {
VkInstance instance;
VkLayerInstanceDispatchTable *instance_dispatch_table;
layer_data() : instance(VK_NULL_HANDLE), instance_dispatch_table(nullptr) {};
};
static uint32_t loader_layer_if_version = CURRENT_LOADER_LAYER_INTERFACE_VERSION;
static std::unordered_map<void *, layer_data *> layer_data_map;
VKAPI_ATTR VkResult VKAPI_CALL CreateInstance(const VkInstanceCreateInfo* pCreateInfo, const VkAllocationCallbacks* pAllocator,
VkInstance* pInstance)
{
VkLayerInstanceCreateInfo *chain_info = get_chain_info(pCreateInfo, VK_LAYER_LINK_INFO);
assert(chain_info != nullptr);
assert(chain_info->u.pLayerInfo != nullptr);
PFN_vkGetInstanceProcAddr fpGetInstanceProcAddr = chain_info->u.pLayerInfo->pfnNextGetInstanceProcAddr;
assert(fpGetInstanceProcAddr != nullptr);
PFN_vkCreateInstance fpCreateInstance = (PFN_vkCreateInstance) fpGetInstanceProcAddr(NULL, "vkCreateInstance");
if (fpCreateInstance == nullptr)
{
return VK_ERROR_INITIALIZATION_FAILED;
}
chain_info->u.pLayerInfo = chain_info->u.pLayerInfo->pNext;
VkResult result = fpCreateInstance(pCreateInfo, pAllocator, pInstance);
if (result != VK_SUCCESS)
{
return result;
}
VkLayerInstanceCreateInfo *create_dev_info = get_chain_info(pCreateInfo, VK_LOADER_LAYER_CREATE_DEVICE_CALLBACK);
assert(create_dev_info != nullptr);
auto layer_create_device = create_dev_info->u.layerDevice.pfnLayerCreateDevice;
auto layer_destroy_device = create_dev_info->u.layerDevice.pfnLayerDestroyDevice;
layer_data *instance_data = GetLayerDataPtr(get_dispatch_key(*pInstance), layer_data_map);
instance_data->instance = *pInstance;
instance_data->instance_dispatch_table = new VkLayerInstanceDispatchTable;
layer_init_instance_dispatch_table(*pInstance, instance_data->instance_dispatch_table, fpGetInstanceProcAddr);
uint32_t count = 0;
instance_data->instance_dispatch_table->EnumeratePhysicalDevices(*pInstance, &count, nullptr);
std::vector<VkPhysicalDevice> devices(count);
instance_data->instance_dispatch_table->EnumeratePhysicalDevices(*pInstance, &count, devices.data());
VkDevice device;
auto device_create_info = VkDeviceCreateInfo{
VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO, // sType
nullptr, // pNext
0, // flags
0, // queueCreateInfoCount
nullptr, // pQueueCreateInfos
0, // enabledLayerCount
nullptr, // ppEnabledLayerNames
0, // enabledExtensionCount
nullptr, // ppEnabledExtensionNames
nullptr // pEnabledFeatures
};
auto deviceQueue = VkDeviceQueueCreateInfo{};
deviceQueue.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
float prios = 1;
deviceQueue.queueFamilyIndex = 0;
deviceQueue.queueCount = 1;
deviceQueue.pQueuePriorities = &prios;
device_create_info.pQueueCreateInfos = &deviceQueue;
device_create_info.queueCreateInfoCount = 1;
PFN_vkGetDeviceProcAddr newGDPA = nullptr;
layer_create_device(*pInstance, devices[0], &device_create_info, nullptr, &device, vkGetInstanceProcAddr, &newGDPA);
assert(newGDPA != nullptr);
PFN_vkDestroyDevice destroy = (PFN_vkDestroyDevice)newGDPA(device, "vkDestroyDevice");
layer_destroy_device(device, nullptr, destroy);
std::cout << "VK_LAYER_LUNARG_test: device count " << count << '\n';
// Marker for testing.
std::cout << "VK_LAYER_LUNARG_test: CreateInstance" << '\n';
return result;
}
VKAPI_ATTR void VKAPI_CALL DestroyInstance(VkInstance instance, const VkAllocationCallbacks *pAllocator)
{
dispatch_key key = get_dispatch_key(instance);
layer_data *instance_data = GetLayerDataPtr(key, layer_data_map);
instance_data->instance_dispatch_table->DestroyInstance(instance, pAllocator);
delete instance_data->instance_dispatch_table;
layer_data_map.erase(key);
// Marker for testing.
std::cout << "VK_LAYER_LUNARG_test: DestroyInstance" << '\n';
}
VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL GetInstanceProcAddr(VkInstance instance, const char* funcName)
{
// Return the functions that are intercepted by this layer.
static const struct
{
const char *name;
PFN_vkVoidFunction proc;
} core_instance_commands[] =
{
{ "vkGetInstanceProcAddr", reinterpret_cast<PFN_vkVoidFunction>(GetInstanceProcAddr) },
{ "vkCreateInstance", reinterpret_cast<PFN_vkVoidFunction>(CreateInstance) },
{ "vkDestroyInstance", reinterpret_cast<PFN_vkVoidFunction>(DestroyInstance) }
};
for (size_t i = 0; i < ARRAY_SIZE(core_instance_commands); i++)
{
if (!strcmp(core_instance_commands[i].name, funcName))
{
return core_instance_commands[i].proc;
}
}
// Only call down the chain for Vulkan commands that this layer does not intercept.
layer_data *instance_data = GetLayerDataPtr(get_dispatch_key(instance), layer_data_map);
VkLayerInstanceDispatchTable *pTable = instance_data->instance_dispatch_table;
if (pTable->GetInstanceProcAddr == nullptr)
{
return nullptr;
}
return pTable->GetInstanceProcAddr(instance, funcName);
}
VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL GetPhysicalDeviceProcAddr(VkInstance instance, const char *funcName) {
assert(instance);
layer_data *instance_data = GetLayerDataPtr(get_dispatch_key(instance), layer_data_map);
VkLayerInstanceDispatchTable *pTable = instance_data->instance_dispatch_table;
if (pTable->GetPhysicalDeviceProcAddr == nullptr)
{
return nullptr;
}
return pTable->GetPhysicalDeviceProcAddr(instance, funcName);
}
}
VK_LAYER_EXPORT VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL vkGetInstanceProcAddr(VkInstance instance, const char* funcName)
{
return test::GetInstanceProcAddr(instance, funcName);
}
VK_LAYER_EXPORT VKAPI_ATTR VkResult VKAPI_CALL vkEnumerateInstanceExtensionProperties(const char *pLayerName, uint32_t *pCount, VkExtensionProperties *pProperties)
{
return VK_ERROR_LAYER_NOT_PRESENT;
}
VK_LAYER_EXPORT VKAPI_ATTR VkResult VKAPI_CALL vkEnumerateInstanceLayerProperties(uint32_t *pCount, VkLayerProperties *pProperties)
{
return VK_ERROR_LAYER_NOT_PRESENT;
}
VK_LAYER_EXPORT VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL vk_layerGetPhysicalDeviceProcAddr(VkInstance instance, const char *funcName) {
return test::GetPhysicalDeviceProcAddr(instance, funcName);
}
VK_LAYER_EXPORT VKAPI_ATTR VkResult VKAPI_CALL vkNegotiateLoaderLayerInterfaceVersion(VkNegotiateLayerInterface *pVersionStruct) {
assert(pVersionStruct != NULL);
assert(pVersionStruct->sType == LAYER_NEGOTIATE_INTERFACE_STRUCT);
// Fill in the function pointers if our version is at least capable of having the structure contain them.
if (pVersionStruct->loaderLayerInterfaceVersion >= 2) {
pVersionStruct->pfnGetInstanceProcAddr = vkGetInstanceProcAddr;
pVersionStruct->pfnGetPhysicalDeviceProcAddr = vk_layerGetPhysicalDeviceProcAddr;
}
if (pVersionStruct->loaderLayerInterfaceVersion < CURRENT_LOADER_LAYER_INTERFACE_VERSION) {
test::loader_layer_if_version = pVersionStruct->loaderLayerInterfaceVersion;
} else if (pVersionStruct->loaderLayerInterfaceVersion > CURRENT_LOADER_LAYER_INTERFACE_VERSION) {
pVersionStruct->loaderLayerInterfaceVersion = CURRENT_LOADER_LAYER_INTERFACE_VERSION;
}
return VK_SUCCESS;
}