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78 lines
2.5 KiB
C++
78 lines
2.5 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/RPI.Reflect/Image/Image.h>
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#include <Atom/RPI.Reflect/Image/ImageAsset.h>
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#include <Atom/RHI/Factory.h>
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namespace AZ
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{
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namespace RPI
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{
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Image::Image()
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{
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/**
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* Image views are persistently initialized on their parent image, and
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* shader resource groups hold image view references. If we re-create the image
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* view instance entirely, that will not automatically propagate to dependent
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* shader resource groups.
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*
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* Image views remain valid when their host image shuts down and re-initializes
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* (it will force a rebuild), so the best course of action is to keep a persistent
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* pointer around at all times, and then only initialize the image view once.
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*/
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auto& factory = RHI::Factory::Get();
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m_image = factory.CreateImage();
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AZ_Assert(m_image, "Failed to acquire an image instance from the RHI. Is the RHI initialized?");
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}
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bool Image::IsInitialized() const
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{
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return m_image->IsInitialized();
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}
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RHI::Image* Image::GetRHIImage()
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{
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return m_image.get();
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}
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const RHI::Image* Image::GetRHIImage() const
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{
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return m_image.get();
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}
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const RHI::ImageView* Image::GetImageView() const
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{
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return m_imageView.get();
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}
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const RHI::ImageDescriptor& Image::GetDescriptor() const
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{
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return m_image->GetDescriptor();
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}
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uint16_t Image::GetMipLevelCount()
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{
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return m_image->GetDescriptor().m_mipLevels;
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}
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RHI::ResultCode Image::UpdateImageContents(const RHI::ImageUpdateRequest& request)
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{
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RHI::ImagePool* imagePool = azrtti_cast<RHI::ImagePool*> (m_image->GetPool());
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return imagePool->UpdateImageContents(request);
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}
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}
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}
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