Program Listing for File cross-gpu-common.h

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(C) Intel Corporation.

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and your use of them is governed by the express license under which they
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#pragma once

#include <d3d12.h>

#include <memory>
#include <map>
#include <unordered_map>

#include "reflection/struct-data-manager.h"

namespace gpa {
namespace cross_gpu {

using Ptr = uint64_t;
using Size = uint64_t;
using Offset = uint64_t;
using GpuVA = D3D12_GPU_VIRTUAL_ADDRESS;
using Offsets = std::map<Offset, Offset>;

template<typename T>
using ResourceTo = std::unordered_map<Ptr, T>;

template<typename T>
using VirtualAddressTo = std::map<GpuVA, T>;

struct AllocationInfo
{
    D3D12_RESOURCE_ALLOCATION_INFO heap{};
    std::vector<D3D12_RESOURCE_ALLOCATION_INFO1> resources;
};

enum class ResourceType {
    kPlaced = 0,
    kReserved,
    kCommited
};

struct HeapRegionInfo
{
    uint32_t heapRangeStartOffsets;
    uint32_t rangeTileCounts;
};

struct RegionInfo
{
    D3D12_TILED_RESOURCE_COORDINATE resourceRegionStartCoordinate{};
    D3D12_TILE_REGION_SIZE resourceRegionSize{};
};

struct TileMappingInfo
{
    std::vector<RegionInfo> resourceRegions;
    std::vector<HeapRegionInfo> heapRegions;
};

enum class DxrDataType {
    kAccelerationStructure,
    kScratchStorage
};

struct DxrData
{
    DxrDataType type = {};
    uint64_t offset = {};
    std::unique_ptr<serialization::StructDataManager> accelerationStructureInputs;
};

struct AllocationManager
{
    virtual ~AllocationManager() = default;
    virtual Size GetResourceSize(const D3D12_RESOURCE_DESC* desc, ResourceType resourceType) = 0;
    virtual AllocationInfo GetResourceAllocationInfo1(const std::vector<D3D12_RESOURCE_DESC>& pResourceDescs) = 0;
    virtual D3D12_RAYTRACING_ACCELERATION_STRUCTURE_PREBUILD_INFO GetRaytracingPrebuildInfo(const D3D12_BUILD_RAYTRACING_ACCELERATION_STRUCTURE_INPUTS& inputsDesc) = 0;
};

}  // namespace cross_gpu
}  // namespace gpa