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/*
* Copyright 2019-2021 Diligent Graphics LLC
* Copyright 2015-2019 Egor Yusov
*
* 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.
*
* In no event and under no legal theory, whether in tort (including negligence),
* contract, or otherwise, unless required by applicable law (such as deliberate
* and grossly negligent acts) or agreed to in writing, shall any Contributor be
* liable for any damages, including any direct, indirect, special, incidental,
* or consequential damages of any character arising as a result of this License or
* out of the use or inability to use the software (including but not limited to damages
* for loss of goodwill, work stoppage, computer failure or malfunction, or any and
* all other commercial damages or losses), even if such Contributor has been advised
* of the possibility of such damages.
*/
#pragma once
/// \file
/// Declaration of Diligent::PipelineResourceSignatureD3D12Impl class
#include <array>
#include "EngineD3D12ImplTraits.hpp"
#include "PipelineResourceAttribsD3D12.hpp"
#include "PipelineResourceSignatureBase.hpp"
#include "SRBMemoryAllocator.hpp"
#include "RootParamsManager.hpp"
#include "ResourceBindingMap.hpp"
// ShaderVariableManagerD3D12, ShaderResourceCacheD3D12, and ShaderResourceBindingD3D12Impl
// are required by PipelineResourceSignatureBase
#include "ShaderResourceCacheD3D12.hpp"
#include "ShaderVariableManagerD3D12.hpp"
#include "ShaderResourceBindingD3D12Impl.hpp"
namespace Diligent
{
class CommandContext;
struct D3DShaderResourceAttribs;
/// Implementation of the Diligent::PipelineResourceSignatureD3D12Impl class
class PipelineResourceSignatureD3D12Impl final : public PipelineResourceSignatureBase<EngineD3D12ImplTraits>
{
public:
using TPipelineResourceSignatureBase = PipelineResourceSignatureBase<EngineD3D12ImplTraits>;
PipelineResourceSignatureD3D12Impl(IReferenceCounters* pRefCounters,
RenderDeviceD3D12Impl* pDevice,
const PipelineResourceSignatureDesc& Desc,
bool bIsDeviceInternal = false);
~PipelineResourceSignatureD3D12Impl();
using ResourceAttribs = PipelineResourceAttribsD3D12;
const ResourceAttribs& GetResourceAttribs(Uint32 ResIndex) const
{
VERIFY_EXPR(ResIndex < m_Desc.NumResources);
return m_pResourceAttribs[ResIndex];
}
struct ImmutableSamplerAttribs
{
private:
static constexpr Uint32 _ShaderRegisterBits = 24;
static constexpr Uint32 _RegisterSpaceBits = 8;
static constexpr Uint32 _InvalidShaderRegister = (1u << _ShaderRegisterBits) - 1;
static constexpr Uint32 _InvalidRegisterSpace = (1u << _RegisterSpaceBits) - 1;
public:
Uint32 ArraySize = 1;
Uint32 ShaderRegister : _ShaderRegisterBits;
Uint32 RegisterSpace : _RegisterSpaceBits;
ImmutableSamplerAttribs() :
ShaderRegister{_InvalidShaderRegister},
RegisterSpace{_InvalidRegisterSpace}
{}
ImmutableSamplerAttribs(Uint32 _ArraySize,
Uint32 _ShaderRegister,
Uint32 _RegisterSpace) noexcept :
// clang-format off
ArraySize {_ArraySize },
ShaderRegister{_ShaderRegister},
RegisterSpace {_RegisterSpace }
// clang-format on
{
VERIFY(ShaderRegister == _ShaderRegister, "Shader register (", _ShaderRegister, ") exceeds maximum representable value");
VERIFY(RegisterSpace == _RegisterSpace, "Shader register space (", _RegisterSpace, ") exceeds maximum representable value");
}
bool IsValid() const
{
return ShaderRegister != _InvalidShaderRegister &&
RegisterSpace != _InvalidRegisterSpace;
}
};
const ImmutableSamplerAttribs& GetImmutableSamplerAttribs(Uint32 SampIndex) const
{
VERIFY_EXPR(SampIndex < m_Desc.NumImmutableSamplers);
return m_ImmutableSamplers[SampIndex];
}
Uint32 GetTotalRootParamsCount() const
{
return m_RootParams.GetNumRootTables() + m_RootParams.GetNumRootViews();
}
Uint32 GetNumRootTables() const
{
return m_RootParams.GetNumRootTables();
}
Uint32 GetNumRootViews() const
{
return m_RootParams.GetNumRootViews();
}
void InitSRBResourceCache(ShaderResourceCacheD3D12& ResourceCache);
void CopyStaticResources(ShaderResourceCacheD3D12& ResourceCache) const;
struct CommitCacheResourcesAttribs
{
const ShaderResourceCacheD3D12& ResourceCache;
CommandContext& Ctx;
DeviceContextD3D12Impl* pDeviceCtx;
Uint32 DeviceCtxId;
bool IsCompute;
Uint32 BaseRootIndex;
};
void CommitRootTables(const CommitCacheResourcesAttribs& CommitAttribs) const;
void CommitRootViews(const CommitCacheResourcesAttribs& CommitAttribs,
Uint64 BuffersMask) const;
const RootParamsManager& GetRootParams() const { return m_RootParams; }
// Adds resources and immutable samplers from this signature to the
// resource binding map.
void UpdateShaderResourceBindingMap(ResourceBinding::TMap& ResourceMap, SHADER_TYPE ShaderStage, Uint32 BaseRegisterSpace) const;
// Returns true if there is an immutable sampler array in the given shader stage.
bool HasImmutableSamplerArray(SHADER_TYPE ShaderStage) const;
#ifdef DILIGENT_DEVELOPMENT
/// Verifies committed resource using the resource attributes from the PSO.
bool DvpValidateCommittedResource(const D3DShaderResourceAttribs& D3DAttribs,
Uint32 ResIndex,
const ShaderResourceCacheD3D12& ResourceCache,
const char* ShaderName,
const char* PSOName) const;
#endif
private:
using StaticResCacheTblSizesArrayType = std::array<Uint32, D3D12_DESCRIPTOR_RANGE_TYPE_SAMPLER + 1>;
void AllocateRootParameters(StaticResCacheTblSizesArrayType& StaticResCacheTblSizes);
void Destruct();
private:
ResourceAttribs* m_pResourceAttribs = nullptr; // [m_Desc.NumResources]
ImmutableSamplerAttribs* m_ImmutableSamplers = nullptr; // [m_Desc.NumImmutableSamplers]
RootParamsManager m_RootParams;
};
} // namespace Diligent
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