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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 "ShaderBindingTableBase.hpp"
namespace Diligent
{
void ValidateShaderBindingTableDesc(const ShaderBindingTableDesc& Desc, Uint32 ShaderGroupHandleSize, Uint32 MaxShaderRecordStride) noexcept(false)
{
#define LOG_SBT_ERROR_AND_THROW(...) LOG_ERROR_AND_THROW("Description of Shader binding table '", (Desc.Name ? Desc.Name : ""), "' is invalid: ", ##__VA_ARGS__)
if (Desc.pPSO == nullptr)
{
LOG_SBT_ERROR_AND_THROW("pPSO must not be null.");
}
if (Desc.pPSO->GetDesc().PipelineType != PIPELINE_TYPE_RAY_TRACING)
{
LOG_SBT_ERROR_AND_THROW("pPSO must be ray tracing pipeline.");
}
const auto ShaderRecordSize = Desc.pPSO->GetRayTracingPipelineDesc().ShaderRecordSize;
const auto ShaderRecordStride = ShaderRecordSize + ShaderGroupHandleSize;
if (ShaderRecordStride > MaxShaderRecordStride)
{
LOG_SBT_ERROR_AND_THROW("ShaderRecordSize(", ShaderRecordSize, ") is too big, max size is: ", MaxShaderRecordStride - ShaderGroupHandleSize);
}
if (ShaderRecordStride % ShaderGroupHandleSize != 0)
{
LOG_SBT_ERROR_AND_THROW("ShaderRecordSize (", ShaderRecordSize, ") plus ShaderGroupHandleSize (", ShaderGroupHandleSize,
") must be a multiple of ", ShaderGroupHandleSize);
}
#undef LOG_SBT_ERROR_AND_THROW
}
} // namespace Diligent
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