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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.
*/
#include "pch.h"
#include "ShaderD3D12Impl.hpp"
#include <D3Dcompiler.h>
#include "RenderDeviceD3D12Impl.hpp"
#include "DataBlobImpl.hpp"
namespace Diligent
{
static ShaderVersion GetD3D12ShaderModel(RenderDeviceD3D12Impl* pDevice, const ShaderVersion& HLSLVersion, SHADER_COMPILER ShaderCompiler)
{
ShaderVersion CompilerSM;
if (ShaderCompiler == SHADER_COMPILER_DXC)
{
if (pDevice->GetDxCompiler() && pDevice->GetDxCompiler()->IsLoaded())
{
CompilerSM = pDevice->GetDxCompiler()->GetMaxShaderModel();
}
else
{
LOG_ERROR_MESSAGE("DXC compiler is not loaded");
CompilerSM = ShaderVersion{5, 1};
}
}
else
{
VERIFY(ShaderCompiler == SHADER_COMPILER_FXC || ShaderCompiler == SHADER_COMPILER_DEFAULT, "Unexpected compiler");
// Direct3D12 supports shader model 5.1 on all feature levels.
// https://docs.microsoft.com/en-us/windows/win32/direct3d12/hardware-feature-levels#feature-level-support
CompilerSM = ShaderVersion{5, 1};
}
ShaderVersion DeviceSM = pDevice->GetProperties().MaxShaderVersion;
ShaderVersion MaxSupportedSM = DeviceSM.Major == CompilerSM.Major ?
(DeviceSM.Minor < CompilerSM.Minor ? DeviceSM : CompilerSM) :
(DeviceSM.Major < CompilerSM.Major ? DeviceSM : CompilerSM);
if (HLSLVersion.Major == 0 && HLSLVersion.Minor == 0)
{
return MaxSupportedSM;
}
else
{
if (HLSLVersion.Major > MaxSupportedSM.Major ||
HLSLVersion.Major == MaxSupportedSM.Major && HLSLVersion.Minor > MaxSupportedSM.Minor)
{
LOG_WARNING_MESSAGE("Requested shader model ", Uint32{HLSLVersion.Major}, '_', Uint32{HLSLVersion.Minor},
" is not supported by the device/compiler. Downgrading to maximum supported version ",
Uint32{MaxSupportedSM.Major}, '_', Uint32{MaxSupportedSM.Minor});
return MaxSupportedSM;
}
else
return HLSLVersion;
}
}
ShaderD3D12Impl::ShaderD3D12Impl(IReferenceCounters* pRefCounters,
RenderDeviceD3D12Impl* pRenderDeviceD3D12,
const ShaderCreateInfo& ShaderCI) :
// clang-format off
TShaderBase
{
pRefCounters,
pRenderDeviceD3D12,
ShaderCI.Desc
},
ShaderD3DBase{ShaderCI, GetD3D12ShaderModel(pRenderDeviceD3D12, ShaderCI.HLSLVersion, ShaderCI.ShaderCompiler), pRenderDeviceD3D12->GetDxCompiler()},
m_EntryPoint{ShaderCI.EntryPoint}
// clang-format on
{
// Load shader resources
auto& Allocator = GetRawAllocator();
auto* pRawMem = ALLOCATE(Allocator, "Allocator for ShaderResources", ShaderResourcesD3D12, 1);
auto* pResources = new (pRawMem) ShaderResourcesD3D12 //
{
m_pShaderByteCode,
m_Desc,
ShaderCI.UseCombinedTextureSamplers ? ShaderCI.CombinedSamplerSuffix : nullptr,
pRenderDeviceD3D12->GetDxCompiler() //
};
m_pShaderResources.reset(pResources, STDDeleterRawMem<ShaderResourcesD3D12>(Allocator));
}
ShaderD3D12Impl::~ShaderD3D12Impl()
{
}
void ShaderD3D12Impl::QueryInterface(const INTERFACE_ID& IID, IObject** ppInterface)
{
if (ppInterface == nullptr)
return;
if (IID == IID_ShaderD3D || IID == IID_ShaderD3D12)
{
*ppInterface = this;
(*ppInterface)->AddRef();
}
else
{
TShaderBase::QueryInterface(IID, ppInterface);
}
}
} // namespace Diligent
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