libcruft-vk/instance.cpp

112 lines
3.3 KiB
C++

/*
* 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.
*
* Copyright:
* 2016-2017, Danny Robson <danny@nerdcruft.net>
*/
#include "./instance.hpp"
#include "./traits.hpp"
using cruft::vk::instance;
///////////////////////////////////////////////////////////////////////////////
static const VkInstanceCreateInfo DEFAULT_INFO = {
.sType = cruft::vk::structure_type_v<VkInstanceCreateInfo>,
.pNext = nullptr,
.flags = {},
.pApplicationInfo = nullptr,
.enabledLayerCount = 0,
.ppEnabledLayerNames = nullptr,
.enabledExtensionCount = 0,
.ppEnabledExtensionNames = nullptr
};
//-----------------------------------------------------------------------------
instance::create_info_t::create_info_t ():
create_info_t (DEFAULT_INFO)
{ ; }
//-----------------------------------------------------------------------------
instance::create_info_t::create_info_t (const VkInstanceCreateInfo &base):
VkInstanceCreateInfo (base)
{ ; }
///////////////////////////////////////////////////////////////////////////////
instance::instance ():
instance (create_info_t ())
{ ; }
//-----------------------------------------------------------------------------
instance::instance (const util::view<const char **> layers,
const util::view<const char **> extensions):
instance (VkInstanceCreateInfo {
.sType = cruft::vk::structure_type_v<VkInstanceCreateInfo>,
.pNext = nullptr,
.flags = {},
.pApplicationInfo = nullptr,
.enabledLayerCount = static_cast<uint32_t> (layers.size ()),
.ppEnabledLayerNames = layers.data (),
.enabledExtensionCount = static_cast<uint32_t> (extensions.size ()),
.ppEnabledExtensionNames = extensions.data ()
})
{ ; }
//-----------------------------------------------------------------------------
instance::instance (const create_info_t &info):
root (&info, nullptr)
{ ; }
///////////////////////////////////////////////////////////////////////////////
std::set<std::string>
instance::extensions (void) const
{
uint32_t expected = 0;
error::try_code (vkEnumerateInstanceExtensionProperties (nullptr, &expected, nullptr));
VkExtensionProperties props[expected];
uint32_t found = expected;
error::try_code (vkEnumerateInstanceExtensionProperties (nullptr, &found, props));
std::set<std::string> ext;
for (const auto &i: props)
ext.insert (i.extensionName);
return ext;
}
///////////////////////////////////////////////////////////////////////////////
std::vector<VkLayerProperties>
instance::available_layers (void)
{
uint32_t count;
vk::error::try_code (vkEnumerateInstanceLayerProperties (&count, nullptr));
std::vector<VkLayerProperties> layers (count);
vk::error::try_code (vkEnumerateInstanceLayerProperties (&count, layers.data ()));
return layers;
}