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/* Copyright (c) 2024 Valve Corporation
* Copyright (c) 2024 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.
*/
#pragma once
#include <vulkan/vulkan_core.h>
namespace rt {
enum class BuildType { Device, Host };
// Compute scratch buffer size the idiomatic way.
// Note: range_infos must be an array of build_info.geometryCount elements
VkDeviceSize ComputeScratchSize(BuildType build_type, const VkDevice device,
const VkAccelerationStructureBuildGeometryInfoKHR &build_info,
const VkAccelerationStructureBuildRangeInfoKHR *range_infos);
// Compute acceleration structure size the idiomatic way.
// Note: range_infos must be an array of build_info.geometryCount elements
VkDeviceSize ComputeAccelerationStructureSize(BuildType build_type, const VkDevice device,
const VkAccelerationStructureBuildGeometryInfoKHR &build_info,
const VkAccelerationStructureBuildRangeInfoKHR *range_infos);
inline const VkAccelerationStructureGeometryKHR &GetGeometry(const VkAccelerationStructureBuildGeometryInfoKHR &info,
uint32_t geometry_i) {
return info.pGeometries ? info.pGeometries[geometry_i] : *info.ppGeometries[geometry_i];
}
} // namespace rt
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