alexpete
93 lines
3.5 KiB
C++
93 lines
3.5 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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#include <Atom/RHI.Reflect/BufferViewDescriptor.h>
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#include <AzCore/Utils/TypeHash.h>
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#include <AzCore/Serialization/SerializeContext.h>
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namespace AZ
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{
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namespace RHI
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{
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void BufferViewDescriptor::Reflect(AZ::ReflectContext* context)
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{
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if (auto* serializeContext = azrtti_cast<AZ::SerializeContext*>(context))
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{
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serializeContext->Class<BufferViewDescriptor>()
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->Version(1)
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->Field("m_elementOffset", &BufferViewDescriptor::m_elementOffset)
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->Field("m_elementCount", &BufferViewDescriptor::m_elementCount)
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->Field("m_elementSize", &BufferViewDescriptor::m_elementSize)
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->Field("m_elementFormat", &BufferViewDescriptor::m_elementFormat)
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->Field("m_ignoreFrameAttachmentValidation", &BufferViewDescriptor::m_ignoreFrameAttachmentValidation)
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;
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}
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}
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AZ::HashValue64 BufferViewDescriptor::GetHash(AZ::HashValue64 seed) const
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{
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return TypeHash64(*this, seed);
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}
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BufferViewDescriptor BufferViewDescriptor::CreateStructured(
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uint32_t elementOffset,
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uint32_t elementCount,
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uint32_t elementSize)
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{
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BufferViewDescriptor descriptor;
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descriptor.m_elementOffset = elementOffset;
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descriptor.m_elementCount = elementCount;
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descriptor.m_elementSize = elementSize;
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descriptor.m_elementFormat = Format::Unknown;
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return descriptor;
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}
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BufferViewDescriptor BufferViewDescriptor::CreateRaw(
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uint32_t byteOffset,
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uint32_t byteCount)
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{
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BufferViewDescriptor descriptor;
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descriptor.m_elementOffset = byteOffset >> 2;
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descriptor.m_elementCount = byteCount >> 2;
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descriptor.m_elementSize = 4;
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descriptor.m_elementFormat = Format::R32_UINT;
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return descriptor;
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}
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BufferViewDescriptor BufferViewDescriptor::CreateTyped(
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uint32_t elementOffset,
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uint32_t elementCount,
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Format elementFormat)
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{
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BufferViewDescriptor descriptor;
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descriptor.m_elementOffset = elementOffset;
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descriptor.m_elementCount = elementCount;
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descriptor.m_elementSize = GetFormatSize(elementFormat);
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descriptor.m_elementFormat = elementFormat;
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return descriptor;
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}
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BufferViewDescriptor BufferViewDescriptor::CreateRayTracingTLAS(
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uint32_t totalByteCount)
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{
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// TLAS format is a raw buffer with a float4 element size
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BufferViewDescriptor descriptor;
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descriptor.m_elementOffset = 0;
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descriptor.m_elementCount = totalByteCount / 16;
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descriptor.m_elementSize = 16;
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descriptor.m_elementFormat = Format::R32_UINT;
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return descriptor;
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}
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}
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}
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