ComputeShaderDX12.h

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// Jolt Physics Library (https://github.com/jrouwe/JoltPhysics)
// SPDX-FileCopyrightText: 2025 Jorrit Rouwe
// SPDX-License-Identifier: MIT
 
#pragma once
 
#ifdef JPH_USE_DX12
 
#include <Jolt/Compute/ComputeShader.h>
#include <Jolt/Compute/DX12/IncludeDX12.h>
#include <Jolt/Core/UnorderedMap.h>
 
JPH_NAMESPACE_BEGIN

class JPH_EXPORT ComputeShaderDX12 : public ComputeShader
{
public:
    JPH_OVERRIDE_NEW_DELETE

                                    ComputeShaderDX12(ComPtr<ID3D12RootSignature> inRootSignature, ComPtr<ID3D12PipelineState> inPipelineState, Array<String> &&inBindingNames, UnorderedMap<string_view, uint> &&inNameToIndex, uint32 inGroupSizeX, uint32 inGroupSizeY, uint32 inGroupSizeZ) :
        ComputeShader(inGroupSizeX, inGroupSizeY, inGroupSizeZ),
        mRootSignature(inRootSignature),
        mPipelineState(inPipelineState),
        mBindingNames(std::move(inBindingNames)),
        mNameToIndex(std::move(inNameToIndex))
    {
    }

    uint                            NameToIndex(const char *inName) const
    {
        UnorderedMap<string_view, uint>::const_iterator it = mNameToIndex.find(inName);
        JPH_ASSERT(it != mNameToIndex.end());
        return it->second;
    }

    ID3D12PipelineState *           GetPipelineState() const                { return mPipelineState.Get(); }
    ID3D12RootSignature *           GetRootSignature() const                { return mRootSignature.Get(); }
 
private:
    ComPtr<ID3D12RootSignature>     mRootSignature;                         
    ComPtr<ID3D12PipelineState>     mPipelineState;                         
    Array<String>                   mBindingNames;                          
    UnorderedMap<string_view, uint> mNameToIndex;                           
};
 
JPH_NAMESPACE_END
 
#endif // JPH_USE_DX12