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/* Copyright (c) 2015-2016 The Khronos Group Inc.
* Copyright (c) 2015-2016 Valve Corporation
* Copyright (c) 2015-2016 LunarG, Inc.
* Copyright (c) 2015-2016 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: Tobin Ehlis <tobin@lunarg.com>
*/
#include <assert.h>
#include <unordered_map>
#include <vulkan/vk_dispatch_table_helper.h>
#include <vulkan/vk_layer.h>
#include "vk_layer_table.h"
static device_table_map tableMap;
static instance_table_map tableInstanceMap;
// Map lookup must be thread safe
VkLayerDispatchTable *device_dispatch_table(void *object) {
dispatch_key key = get_dispatch_key(object);
device_table_map::const_iterator it = tableMap.find((void *)key);
assert(it != tableMap.end() && "Not able to find device dispatch entry");
return it->second;
}
VkLayerInstanceDispatchTable *instance_dispatch_table(void *object) {
dispatch_key key = get_dispatch_key(object);
instance_table_map::const_iterator it = tableInstanceMap.find((void *)key);
assert(it != tableInstanceMap.end() && "Not able to find instance dispatch entry");
return it->second;
}
void destroy_dispatch_table(device_table_map &map, dispatch_key key) {
device_table_map::const_iterator it = map.find((void *)key);
if (it != map.end()) {
delete it->second;
map.erase(it);
}
}
void destroy_dispatch_table(instance_table_map &map, dispatch_key key) {
instance_table_map::const_iterator it = map.find((void *)key);
if (it != map.end()) {
delete it->second;
map.erase(it);
}
}
void destroy_device_dispatch_table(dispatch_key key) { destroy_dispatch_table(tableMap, key); }
void destroy_instance_dispatch_table(dispatch_key key) { destroy_dispatch_table(tableInstanceMap, key); }
VkLayerDispatchTable *get_dispatch_table(device_table_map &map, void *object) {
dispatch_key key = get_dispatch_key(object);
device_table_map::const_iterator it = map.find((void *)key);
assert(it != map.end() && "Not able to find device dispatch entry");
return it->second;
}
VkLayerInstanceDispatchTable *get_dispatch_table(instance_table_map &map, void *object) {
dispatch_key key = get_dispatch_key(object);
instance_table_map::const_iterator it = map.find((void *)key);
assert(it != map.end() && "Not able to find instance dispatch entry");
return it->second;
}
VkLayerInstanceCreateInfo *get_chain_info(const VkInstanceCreateInfo *pCreateInfo, VkLayerFunction func) {
VkLayerInstanceCreateInfo *chain_info = (VkLayerInstanceCreateInfo *)pCreateInfo->pNext;
while (chain_info && !(chain_info->sType == VK_STRUCTURE_TYPE_LOADER_INSTANCE_CREATE_INFO && chain_info->function == func)) {
chain_info = (VkLayerInstanceCreateInfo *)chain_info->pNext;
}
assert(chain_info != NULL);
return chain_info;
}
VkLayerDeviceCreateInfo *get_chain_info(const VkDeviceCreateInfo *pCreateInfo, VkLayerFunction func) {
VkLayerDeviceCreateInfo *chain_info = (VkLayerDeviceCreateInfo *)pCreateInfo->pNext;
while (chain_info && !(chain_info->sType == VK_STRUCTURE_TYPE_LOADER_DEVICE_CREATE_INFO && chain_info->function == func)) {
chain_info = (VkLayerDeviceCreateInfo *)chain_info->pNext;
}
assert(chain_info != NULL);
return chain_info;
}
/* Various dispatchable objects will use the same underlying dispatch table if they
* are created from that "parent" object. Thus use pointer to dispatch table
* as the key to these table maps.
* Instance -> PhysicalDevice
* Device -> CommandBuffer or Queue
* If use the object themselves as key to map then implies Create entrypoints have to be intercepted
* and a new key inserted into map */
VkLayerInstanceDispatchTable *initInstanceTable(VkInstance instance, const PFN_vkGetInstanceProcAddr gpa, instance_table_map &map) {
VkLayerInstanceDispatchTable *pTable;
dispatch_key key = get_dispatch_key(instance);
instance_table_map::const_iterator it = map.find((void *)key);
if (it == map.end()) {
pTable = new VkLayerInstanceDispatchTable;
map[(void *)key] = pTable;
} else {
return it->second;
}
layer_init_instance_dispatch_table(instance, pTable, gpa);
// Setup func pointers that are required but not externally exposed. These won't be added to the instance dispatch table by
// default.
pTable->GetPhysicalDeviceProcAddr = (PFN_GetPhysicalDeviceProcAddr)gpa(instance, "vk_layerGetPhysicalDeviceProcAddr");
return pTable;
}
VkLayerInstanceDispatchTable *initInstanceTable(VkInstance instance, const PFN_vkGetInstanceProcAddr gpa) {
return initInstanceTable(instance, gpa, tableInstanceMap);
}
VkLayerDispatchTable *initDeviceTable(VkDevice device, const PFN_vkGetDeviceProcAddr gpa, device_table_map &map) {
VkLayerDispatchTable *pTable;
dispatch_key key = get_dispatch_key(device);
device_table_map::const_iterator it = map.find((void *)key);
if (it == map.end()) {
pTable = new VkLayerDispatchTable;
map[(void *)key] = pTable;
} else {
return it->second;
}
layer_init_device_dispatch_table(device, pTable, gpa);
return pTable;
}
VkLayerDispatchTable *initDeviceTable(VkDevice device, const PFN_vkGetDeviceProcAddr gpa) {
return initDeviceTable(device, gpa, tableMap);
}
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