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100 lines
3.2 KiB
C++
100 lines
3.2 KiB
C++
// Copyright 2014 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "VideoBackends/D3D/D3DBoundingBox.h"
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#include <algorithm>
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#include <array>
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#include "Common/Assert.h"
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#include "Common/CommonTypes.h"
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#include "Common/MsgHandler.h"
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#include "VideoBackends/D3D/D3DState.h"
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#include "VideoBackends/D3DCommon/D3DCommon.h"
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namespace DX11
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{
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D3DBoundingBox::~D3DBoundingBox()
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{
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m_uav.Reset();
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m_staging_buffer.Reset();
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m_buffer.Reset();
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}
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bool D3DBoundingBox::Initialize()
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{
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// Create 2 buffers here.
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// First for unordered access on default pool.
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auto desc = CD3D11_BUFFER_DESC(NUM_BBOX_VALUES * sizeof(BBoxType), D3D11_BIND_UNORDERED_ACCESS,
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D3D11_USAGE_DEFAULT, 0, 0, sizeof(BBoxType));
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const BBoxType initial_values[NUM_BBOX_VALUES] = {0, 0, 0, 0};
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D3D11_SUBRESOURCE_DATA data;
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data.pSysMem = initial_values;
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data.SysMemPitch = NUM_BBOX_VALUES * sizeof(BBoxType);
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data.SysMemSlicePitch = 0;
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HRESULT hr;
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hr = D3D::device->CreateBuffer(&desc, &data, &m_buffer);
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ASSERT_MSG(VIDEO, SUCCEEDED(hr), "Failed to create BoundingBox Buffer: {}", DX11HRWrap(hr));
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if (FAILED(hr))
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return false;
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D3DCommon::SetDebugObjectName(m_buffer.Get(), "BoundingBox Buffer");
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// Second to use as a staging buffer.
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desc.Usage = D3D11_USAGE_STAGING;
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desc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
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desc.BindFlags = 0;
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hr = D3D::device->CreateBuffer(&desc, nullptr, &m_staging_buffer);
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ASSERT_MSG(VIDEO, SUCCEEDED(hr), "Failed to create BoundingBox Staging Buffer: {}",
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DX11HRWrap(hr));
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if (FAILED(hr))
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return false;
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D3DCommon::SetDebugObjectName(m_staging_buffer.Get(), "BoundingBox Staging Buffer");
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// UAV is required to allow concurrent access.
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D3D11_UNORDERED_ACCESS_VIEW_DESC UAVdesc = {};
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UAVdesc.Format = DXGI_FORMAT_R32_SINT;
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UAVdesc.ViewDimension = D3D11_UAV_DIMENSION_BUFFER;
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UAVdesc.Buffer.FirstElement = 0;
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UAVdesc.Buffer.Flags = 0;
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UAVdesc.Buffer.NumElements = NUM_BBOX_VALUES;
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hr = D3D::device->CreateUnorderedAccessView(m_buffer.Get(), &UAVdesc, &m_uav);
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ASSERT_MSG(VIDEO, SUCCEEDED(hr), "Failed to create BoundingBox UAV: {}", DX11HRWrap(hr));
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if (FAILED(hr))
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return false;
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D3DCommon::SetDebugObjectName(m_uav.Get(), "BoundingBox UAV");
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D3D::stateman->SetOMUAV(m_uav.Get());
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return true;
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}
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std::vector<BBoxType> D3DBoundingBox::Read(u32 index, u32 length)
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{
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std::vector<BBoxType> values(length);
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D3D::context->CopyResource(m_staging_buffer.Get(), m_buffer.Get());
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D3D11_MAPPED_SUBRESOURCE map;
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HRESULT hr = D3D::context->Map(m_staging_buffer.Get(), 0, D3D11_MAP_READ, 0, &map);
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if (SUCCEEDED(hr))
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{
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std::memcpy(values.data(), reinterpret_cast<const u8*>(map.pData) + sizeof(BBoxType) * index,
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sizeof(BBoxType) * length);
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D3D::context->Unmap(m_staging_buffer.Get(), 0);
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}
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return values;
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}
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void D3DBoundingBox::Write(u32 index, const std::vector<BBoxType>& values)
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{
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D3D11_BOX box{index * sizeof(BBoxType),
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0,
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0,
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static_cast<u32>(index + values.size()) * sizeof(BBoxType),
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1,
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1};
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D3D::context->UpdateSubresource(m_buffer.Get(), 0, &box, values.data(), 0, 0);
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}
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}; // namespace DX11
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