forked from dolphin-emu/dolphin
87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
// 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_staging_buffer;
|
|
static ID3D11UnorderedAccessView* s_bbox_uav;
|
|
|
|
ID3D11UnorderedAccessView* &BBox::GetUAV()
|
|
{
|
|
return s_bbox_uav;
|
|
}
|
|
|
|
void BBox::Init()
|
|
{
|
|
if (g_ActiveConfig.backend_info.bSupportsBBox)
|
|
{
|
|
// Create 2 buffers here.
|
|
// First for unordered access on default pool.
|
|
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 BoundingBox Buffer.");
|
|
D3D::SetDebugObjectName(s_bbox_buffer, "BoundingBox Buffer");
|
|
|
|
// Second to use as a staging buffer.
|
|
desc.Usage = D3D11_USAGE_STAGING;
|
|
desc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
|
|
desc.BindFlags = 0;
|
|
hr = D3D::device->CreateBuffer(&desc, nullptr, &s_bbox_staging_buffer);
|
|
CHECK(SUCCEEDED(hr), "Create BoundingBox Staging Buffer.");
|
|
D3D::SetDebugObjectName(s_bbox_staging_buffer, "BoundingBox Staging Buffer");
|
|
|
|
// UAV is required to allow concurrent access.
|
|
D3D11_UNORDERED_ACCESS_VIEW_DESC 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 BoundingBox UAV.");
|
|
D3D::SetDebugObjectName(s_bbox_uav, "BoundingBox UAV");
|
|
}
|
|
}
|
|
|
|
void BBox::Shutdown()
|
|
{
|
|
SAFE_RELEASE(s_bbox_buffer);
|
|
SAFE_RELEASE(s_bbox_staging_buffer);
|
|
SAFE_RELEASE(s_bbox_uav);
|
|
}
|
|
|
|
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_staging_buffer, s_bbox_buffer);
|
|
D3D11_MAPPED_SUBRESOURCE map;
|
|
HRESULT hr = D3D::context->Map(s_bbox_staging_buffer, 0, D3D11_MAP_READ, 0, &map);
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
data = ((s32*)map.pData)[index];
|
|
}
|
|
D3D::context->Unmap(s_bbox_staging_buffer, 0);
|
|
return data;
|
|
}
|
|
|
|
};
|