/* Copyright (c) 2017-2026 Hans-Kristian Arntzen
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#include "rtas.hpp"
#include "device.hpp"

namespace Vulkan
{
RTAS::RTAS(Device *device_, VkAccelerationStructureKHR rtas_,
           VkAccelerationStructureTypeKHR type_, BufferHandle backing_)
	: Cookie(device_)
	, device(device_)
	, rtas(rtas_)
	, type(type_)
	, backing(std::move(backing_))
{
	VkAccelerationStructureDeviceAddressInfoKHR info =
			{ VK_STRUCTURE_TYPE_ACCELERATION_STRUCTURE_DEVICE_ADDRESS_INFO_KHR };
	info.accelerationStructure = rtas;
	bda = device->get_device_table().vkGetAccelerationStructureDeviceAddressKHR(device->get_device(), &info);
}

VkDeviceSize RTAS::get_scratch_size(BuildMode mode) const
{
	return mode == BuildMode::Build ? build_size : update_size;
}

RTAS::~RTAS()
{
	device->destroy_rtas(rtas);
}

void RTASDeleter::operator()(Vulkan::RTAS *rtas)
{
	// Avoid hitting destruction callback inside a callback.
	rtas->backing.reset();

	rtas->device->handle_pool.rtas.free(rtas);
}
}


