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Add HW bounding Box support to d3d backend

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This commit is contained in:
Rodolfo Bogado
2014-12-04 23:01:20 -03:00
parent c617b6c722
commit 93b4540e19
9 changed files with 211 additions and 16 deletions
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95
Source/Core/VideoBackends/D3D/BoundingBox.cpp Normal file
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// Copyright 2014 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "VideoBackends/D3D/BoundingBox.h"
#include "VideoCommon/VideoConfig.h"
namespace DX11
{
static ID3D11Buffer* s_bbox_buffer;
static ID3D11Buffer* s_bbox_Readbuffer;
static ID3D11UnorderedAccessView* s_bbox_uav;
ID3D11UnorderedAccessView* &BBox::GetUAV()
{
return s_bbox_uav;
}
void BBox::Init()
{
if (g_ActiveConfig.backend_info.bSupportsBBox)
{
// create the pool texture here
auto desc = CD3D11_BUFFER_DESC(4 * sizeof(s32), D3D11_BIND_UNORDERED_ACCESS, D3D11_USAGE_DEFAULT, 0, 0, 4);
int initial_values[4] = { 0, 0, 0, 0 };
D3D11_SUBRESOURCE_DATA data;
data.pSysMem = initial_values;
data.SysMemPitch = 4 * sizeof(s32);
data.SysMemSlicePitch = 0;
HRESULT hr;
hr = D3D::device->CreateBuffer(&desc, &data, &s_bbox_buffer);
CHECK(SUCCEEDED(hr), "create bbox buffer");
D3D::SetDebugObjectName((ID3D11DeviceChild*)s_bbox_buffer, "boundingbox buffer");
desc.Usage = D3D11_USAGE_STAGING;
desc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
desc.BindFlags = 0;
hr = D3D::device->CreateBuffer(&desc, nullptr, &s_bbox_Readbuffer);
CHECK(SUCCEEDED(hr), "create bbox staging buffer");
D3D::SetDebugObjectName((ID3D11DeviceChild*)s_bbox_Readbuffer, "boundingbox staging buffer");
D3D11_UNORDERED_ACCESS_VIEW_DESC UAVdesc;
memset(&UAVdesc, 0, sizeof(UAVdesc));
UAVdesc.Format = DXGI_FORMAT_R32_SINT;
UAVdesc.ViewDimension = D3D11_UAV_DIMENSION_BUFFER;
UAVdesc.Buffer.FirstElement = 0;
UAVdesc.Buffer.Flags = 0;
UAVdesc.Buffer.NumElements = 4;
hr = D3D::device->CreateUnorderedAccessView(s_bbox_buffer, &UAVdesc, &s_bbox_uav);
CHECK(SUCCEEDED(hr), "create bbox UAV");
D3D::SetDebugObjectName((ID3D11DeviceChild*)s_bbox_uav, "boundingbox UAV");
}
}
void BBox::Shutdown()
{
if (s_bbox_buffer != nullptr)
{
s_bbox_buffer->Release();
s_bbox_buffer = nullptr;
}
if (s_bbox_Readbuffer != nullptr)
{
s_bbox_Readbuffer->Release();
s_bbox_Readbuffer = nullptr;
}
if (s_bbox_uav != nullptr)
{
s_bbox_uav->Release();
s_bbox_uav = nullptr;
}
}
void BBox::Set(int index, int value)
{
D3D11_BOX box{ index * sizeof(s32), 0, 0, (index + 1) * sizeof(s32), 1, 1 };
D3D::context->UpdateSubresource(s_bbox_buffer, 0, &box, &value, 0, 0);
}
int BBox::Get(int index)
{
int data = 0;
D3D::context->CopyResource(s_bbox_Readbuffer, s_bbox_buffer);
D3D11_MAPPED_SUBRESOURCE map;
HRESULT hr = D3D::context->Map(s_bbox_Readbuffer, 0, D3D11_MAP_READ, 0, &map);
if (SUCCEEDED(hr))
{
data = ((s32*)map.pData)[index];
}
D3D::context->Unmap(s_bbox_Readbuffer, 0);
return data;
}
};