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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.
///////////////////////////////////////////////////////////////////////////////
#define VK_PROTOTYPES
#include "vkjson.h"
#include <utility>
namespace {
const char* kSupportedInstanceExtensions[] = {
"VK_KHR_get_physical_device_properties2"};
bool EnumerateExtensions(const char* layer_name,
std::vector<VkExtensionProperties>* extensions) {
VkResult result;
uint32_t count = 0;
result = vkEnumerateInstanceExtensionProperties(layer_name, &count, nullptr);
if (result != VK_SUCCESS)
return false;
extensions->resize(count);
result = vkEnumerateInstanceExtensionProperties(layer_name, &count,
extensions->data());
if (result != VK_SUCCESS)
return false;
return true;
}
bool HasExtension(const char* extension_name,
uint32_t count,
const char* const* extensions) {
return std::find_if(extensions, extensions + count,
[extension_name](const char* extension) {
return strcmp(extension, extension_name) == 0;
}) != extensions + count;
}
bool HasExtension(const char* extension_name,
const std::vector<VkExtensionProperties>& extensions) {
return std::find_if(extensions.cbegin(), extensions.cend(),
[extension_name](const VkExtensionProperties& extension) {
return strcmp(extension.extensionName,
extension_name) == 0;
}) != extensions.cend();
}
} // anonymous namespace
VkJsonDevice VkJsonGetDevice(VkInstance instance,
VkPhysicalDevice physical_device,
uint32_t instance_extension_count,
const char* const* instance_extensions) {
VkJsonDevice device;
PFN_vkGetPhysicalDeviceFeatures2KHR vkpGetPhysicalDeviceFeatures2KHR =
nullptr;
if (instance != VK_NULL_HANDLE &&
HasExtension("VK_KHR_get_physical_device_properties2",
instance_extension_count, instance_extensions)) {
vkpGetPhysicalDeviceFeatures2KHR =
reinterpret_cast<PFN_vkGetPhysicalDeviceFeatures2KHR>(
vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceFeatures2KHR"));
}
// Only device extensions.
// TODO(piman): do we want to show layer extensions?
uint32_t extension_count = 0;
vkEnumerateDeviceExtensionProperties(physical_device, nullptr,
&extension_count, nullptr);
if (extension_count > 0) {
device.extensions.resize(extension_count);
vkEnumerateDeviceExtensionProperties(
physical_device, nullptr, &extension_count, device.extensions.data());
}
uint32_t layer_count = 0;
vkEnumerateDeviceLayerProperties(physical_device, &layer_count, nullptr);
if (layer_count > 0) {
device.layers.resize(layer_count);
vkEnumerateDeviceLayerProperties(physical_device, &layer_count,
device.layers.data());
}
vkGetPhysicalDeviceProperties(physical_device, &device.properties);
if (HasExtension("VK_KHR_get_physical_device_properties2",
instance_extension_count, instance_extensions)) {
VkPhysicalDeviceFeatures2KHR features = {
VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2_KHR,
nullptr,
{} // features
};
if (HasExtension("VK_KHR_variable_pointers", device.extensions)) {
device.variable_pointer_features.sType =
VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VARIABLE_POINTER_FEATURES_KHR;
device.variable_pointer_features.pNext = features.pNext;
features.pNext = &device.variable_pointer_features;
}
vkpGetPhysicalDeviceFeatures2KHR(physical_device, &features);
device.features = features.features;
} else {
vkGetPhysicalDeviceFeatures(physical_device, &device.features);
}
vkGetPhysicalDeviceMemoryProperties(physical_device, &device.memory);
uint32_t queue_family_count = 0;
vkGetPhysicalDeviceQueueFamilyProperties(physical_device, &queue_family_count,
nullptr);
if (queue_family_count > 0) {
device.queues.resize(queue_family_count);
vkGetPhysicalDeviceQueueFamilyProperties(
physical_device, &queue_family_count, device.queues.data());
}
VkFormatProperties format_properties = {};
for (VkFormat format = VK_FORMAT_R4G4_UNORM_PACK8;
format <= VK_FORMAT_END_RANGE;
format = static_cast<VkFormat>(format + 1)) {
vkGetPhysicalDeviceFormatProperties(physical_device, format,
&format_properties);
if (format_properties.linearTilingFeatures ||
format_properties.optimalTilingFeatures ||
format_properties.bufferFeatures) {
device.formats.insert(std::make_pair(format, format_properties));
}
}
return device;
}
VkJsonInstance VkJsonGetInstance() {
VkJsonInstance instance;
VkResult result;
uint32_t count;
count = 0;
result = vkEnumerateInstanceLayerProperties(&count, nullptr);
if (result != VK_SUCCESS)
return VkJsonInstance();
if (count > 0) {
std::vector<VkLayerProperties> layers(count);
result = vkEnumerateInstanceLayerProperties(&count, layers.data());
if (result != VK_SUCCESS)
return VkJsonInstance();
instance.layers.reserve(count);
for (auto& layer : layers) {
instance.layers.push_back(VkJsonLayer{layer, std::vector<VkExtensionProperties>()});
if (!EnumerateExtensions(layer.layerName,
&instance.layers.back().extensions))
return VkJsonInstance();
}
}
if (!EnumerateExtensions(nullptr, &instance.extensions))
return VkJsonInstance();
std::vector<const char*> instance_extensions;
for (const auto extension : kSupportedInstanceExtensions) {
if (HasExtension(extension, instance.extensions))
instance_extensions.push_back(extension);
}
const VkApplicationInfo app_info = {VK_STRUCTURE_TYPE_APPLICATION_INFO,
nullptr,
"vkjson_info",
1,
"",
0,
VK_API_VERSION_1_0};
VkInstanceCreateInfo instance_info = {
VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO,
nullptr,
0,
&app_info,
0,
nullptr,
static_cast<uint32_t>(instance_extensions.size()),
instance_extensions.data()};
VkInstance vkinstance;
result = vkCreateInstance(&instance_info, nullptr, &vkinstance);
if (result != VK_SUCCESS)
return VkJsonInstance();
count = 0;
result = vkEnumeratePhysicalDevices(vkinstance, &count, nullptr);
if (result != VK_SUCCESS) {
vkDestroyInstance(vkinstance, nullptr);
return VkJsonInstance();
}
std::vector<VkPhysicalDevice> devices(count, VK_NULL_HANDLE);
result = vkEnumeratePhysicalDevices(vkinstance, &count, devices.data());
if (result != VK_SUCCESS) {
vkDestroyInstance(vkinstance, nullptr);
return VkJsonInstance();
}
instance.devices.reserve(devices.size());
for (auto device : devices)
instance.devices.emplace_back(VkJsonGetDevice(vkinstance, device,
instance_extensions.size(),
instance_extensions.data()));
vkDestroyInstance(vkinstance, nullptr);
return instance;
}
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