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54 lines
2.0 KiB
C++
54 lines
2.0 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/Utils/Utils.h>
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namespace AZ
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{
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namespace Render
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{
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AZ::Outcome<void> WriteToBuffer(RHI::Ptr<RHI::Buffer> buffer, const void* data, size_t dataSize)
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{
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// Map the buffer, copy data to the mapped pointer, and unmap it.
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if (dataSize > buffer->GetDescriptor().m_byteCount)
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{
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AZ_Error("AZ::Render::WriteToBuffer", false, "Unable to map buffer %s, provided data is too big.", buffer->GetName().GetCStr());
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return AZ::Failure();
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}
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if (dataSize == 0)
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{
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AZ_Warning("AZ::Render::WriteToBuffer", false, "Provided data was empty, no data was written to the buffer.");
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return AZ::Failure();
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}
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RHI::BufferMapRequest mapRequest(*buffer, 0, dataSize);
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RHI::BufferMapResponse response;
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RHI::BufferPool* bufferPool = static_cast<RHI::BufferPool*>(buffer->GetPool());
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bufferPool->MapBuffer(mapRequest, response);
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if (response.m_data)
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{
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memcpy(response.m_data, data, dataSize);
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bufferPool->UnmapBuffer(*buffer);
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}
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else
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{
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AZ_Error("AZ::Render::WriteToBuffer", false, "Unable to map buffer: %s, map request failed.", buffer->GetName().GetCStr());
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return AZ::Failure();
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}
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return AZ::Success();
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}
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} // namespace Render
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} // namespace AZ
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