Skip to content
Merged
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension


Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
316 changes: 316 additions & 0 deletions Effects/DxgiDuplicationSourceProvider.cpp
Original file line number Diff line number Diff line change
@@ -0,0 +1,316 @@
#include "pch_engine.h"

Copy link
Copy Markdown
Owner

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

This is a great addition - didn't even occur to me.

#include "DxgiDuplicationSourceProvider.h"

namespace ShaderLab::Effects
{
namespace
{
std::wstring HResultMessage(HRESULT hr)
{
return std::format(L"HRESULT 0x{:08X}", static_cast<uint32_t>(hr));
}

winrt::com_ptr<IDXGIFactory1> GetFactoryFromDevice(ID3D11Device* d3dDevice)
{
if (!d3dDevice)
return nullptr;

winrt::com_ptr<IDXGIDevice> dxgiDevice;
if (FAILED(d3dDevice->QueryInterface(IID_PPV_ARGS(dxgiDevice.put()))))
return nullptr;

winrt::com_ptr<IDXGIAdapter> adapter;
if (FAILED(dxgiDevice->GetAdapter(adapter.put())))
return nullptr;

winrt::com_ptr<IDXGIFactory1> factory;
if (FAILED(adapter->GetParent(IID_PPV_ARGS(factory.put()))))
return nullptr;

return factory;
}

winrt::com_ptr<IDXGIFactory1> CreateFactory()
{
winrt::com_ptr<IDXGIFactory1> factory;
if (FAILED(CreateDXGIFactory1(IID_PPV_ARGS(factory.put()))))
return nullptr;
return factory;
}
}

DxgiDuplicationSourceProvider::~DxgiDuplicationSourceProvider()
{
Close();
}

std::vector<DxgiOutputInfo> DxgiDuplicationSourceProvider::EnumerateOutputs(ID3D11Device* d3dDevice)
{
std::vector<DxgiOutputInfo> outputs;
auto factory = d3dDevice ? GetFactoryFromDevice(d3dDevice) : CreateFactory();
if (!factory)
return outputs;

for (uint32_t adapterIndex = 0;; ++adapterIndex)
{
winrt::com_ptr<IDXGIAdapter1> adapter;
if (factory->EnumAdapters1(adapterIndex, adapter.put()) == DXGI_ERROR_NOT_FOUND)
break;
if (!adapter)
continue;

for (uint32_t outputIndex = 0;; ++outputIndex)
{
winrt::com_ptr<IDXGIOutput> output;
HRESULT hr = adapter->EnumOutputs(outputIndex, output.put());
if (hr == DXGI_ERROR_NOT_FOUND)
break;
if (FAILED(hr) || !output)
continue;

DXGI_OUTPUT_DESC desc{};
if (FAILED(output->GetDesc(&desc)))
continue;

DxgiOutputInfo info;
info.adapterIndex = adapterIndex;
info.outputIndex = outputIndex;
info.deviceName = desc.DeviceName;
info.desktopCoordinates = desc.DesktopCoordinates;
info.attachedToDesktop = desc.AttachedToDesktop != FALSE;
outputs.push_back(std::move(info));
}
}

return outputs;
}

bool DxgiDuplicationSourceProvider::Open(
ID2D1DeviceContext5* dc,
ID3D11Device* d3dDevice,
uint32_t adapterIndex,
uint32_t outputIndex,
bool rawFP16)
{
Close();

if (!dc || !d3dDevice)
{
m_lastError = L"Missing D2D or D3D device";
return false;
}

m_adapterIndex = adapterIndex;
m_outputIndex = outputIndex;
m_rawFP16 = rawFP16;
m_d3dDevice.copy_from(d3dDevice);

auto factory = GetFactoryFromDevice(d3dDevice);
if (!factory)
{
m_lastError = L"Failed to get DXGI factory";
return false;
}

winrt::com_ptr<IDXGIAdapter1> adapter;
HRESULT hr = factory->EnumAdapters1(adapterIndex, adapter.put());
if (FAILED(hr) || !adapter)
{
m_lastError = L"Failed to enumerate DXGI adapter: " + HResultMessage(hr);
return false;
}

winrt::com_ptr<IDXGIOutput> output;
hr = adapter->EnumOutputs(outputIndex, output.put());
if (FAILED(hr) || !output)
{
m_lastError = L"Failed to enumerate DXGI output: " + HResultMessage(hr);
return false;
}

DXGI_OUTPUT_DESC outputDesc{};
output->GetDesc(&outputDesc);
m_outputName = outputDesc.DeviceName;

if (rawFP16)
{
winrt::com_ptr<IDXGIOutput5> output5;
hr = output->QueryInterface(IID_PPV_ARGS(output5.put()));
if (SUCCEEDED(hr) && output5)
{
DXGI_FORMAT formats[] = { DXGI_FORMAT_R16G16B16A16_FLOAT, DXGI_FORMAT_B8G8R8A8_UNORM };
hr = output5->DuplicateOutput1(
d3dDevice,
0,
static_cast<UINT>(std::size(formats)),
formats,
m_duplication.put());
}
}

if (!m_duplication)
{
winrt::com_ptr<IDXGIOutput1> output1;
hr = output->QueryInterface(IID_PPV_ARGS(output1.put()));
if (FAILED(hr) || !output1)
{
m_lastError = L"DXGI output does not support DuplicateOutput: " + HResultMessage(hr);
return false;
}

hr = output1->DuplicateOutput(d3dDevice, m_duplication.put());
}
if (FAILED(hr) || !m_duplication)
{
m_lastError = L"DuplicateOutput failed: " + HResultMessage(hr);
return false;
}

DXGI_OUTDUPL_DESC dupDesc{};
m_duplication->GetDesc(&dupDesc);
m_width = dupDesc.ModeDesc.Width;
m_height = dupDesc.ModeDesc.Height;
m_outputFormat = dupDesc.ModeDesc.Format == DXGI_FORMAT_R16G16B16A16_FLOAT
? DXGI_FORMAT_R16G16B16A16_FLOAT
: DXGI_FORMAT_B8G8R8A8_UNORM;

if (!CreateOutputTextureAndBitmap(dc, d3dDevice, m_width, m_height, m_outputFormat))
{
Close();
return false;
}

m_lastError.clear();
return true;
}

void DxgiDuplicationSourceProvider::Close()
{
m_bitmap = nullptr;
m_outputTexture = nullptr;
m_duplication = nullptr;
m_d3dDevice = nullptr;
m_width = 0;
m_height = 0;
m_outputFormat = DXGI_FORMAT_B8G8R8A8_UNORM;
m_frameCount = 0;
}

bool DxgiDuplicationSourceProvider::CreateOutputTextureAndBitmap(
ID2D1DeviceContext5* dc,
ID3D11Device* d3dDevice,
uint32_t width,
uint32_t height,
DXGI_FORMAT format)
{
if (!dc || !d3dDevice || width == 0 || height == 0)
return false;

D3D11_TEXTURE2D_DESC texDesc{};
texDesc.Width = width;
texDesc.Height = height;
texDesc.MipLevels = 1;
texDesc.ArraySize = 1;
texDesc.Format = format;
texDesc.SampleDesc.Count = 1;
texDesc.Usage = D3D11_USAGE_DEFAULT;
texDesc.BindFlags = D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET;

HRESULT hr = d3dDevice->CreateTexture2D(&texDesc, nullptr, m_outputTexture.put());
if (FAILED(hr) || !m_outputTexture)
{
m_lastError = L"Failed to create duplication output texture: " + HResultMessage(hr);
return false;
}

winrt::com_ptr<IDXGISurface> surface;
hr = m_outputTexture->QueryInterface(IID_PPV_ARGS(surface.put()));
if (FAILED(hr) || !surface)
{
m_lastError = L"Failed to query output texture surface: " + HResultMessage(hr);
return false;
}

D2D1_BITMAP_PROPERTIES1 bitmapProps = D2D1::BitmapProperties1(
D2D1_BITMAP_OPTIONS_NONE,
D2D1::PixelFormat(format, D2D1_ALPHA_MODE_PREMULTIPLIED));

hr = dc->CreateBitmapFromDxgiSurface(surface.get(), &bitmapProps, m_bitmap.put());
if (FAILED(hr) || !m_bitmap)
{
m_lastError = L"Failed to create D2D bitmap for duplication output: " + HResultMessage(hr);
return false;
}

return true;
}

bool DxgiDuplicationSourceProvider::Reopen(ID2D1DeviceContext5* dc)
{
auto device = m_d3dDevice;
auto adapterIndex = m_adapterIndex;
auto outputIndex = m_outputIndex;
auto rawFP16 = m_rawFP16;
Close();
return Open(dc, device.get(), adapterIndex, outputIndex, rawFP16);
}

bool DxgiDuplicationSourceProvider::CaptureNextFrame(ID2D1DeviceContext5* dc)
{
if (!m_duplication || !m_d3dDevice)
return false;

DXGI_OUTDUPL_FRAME_INFO frameInfo{};
winrt::com_ptr<IDXGIResource> resource;
HRESULT hr = m_duplication->AcquireNextFrame(0, &frameInfo, resource.put());
if (hr == DXGI_ERROR_WAIT_TIMEOUT)
return false;

if (hr == DXGI_ERROR_ACCESS_LOST)
{
Reopen(dc);
return false;
}

if (FAILED(hr) || !resource)
{
m_lastError = L"AcquireNextFrame failed: " + HResultMessage(hr);
return false;
}

bool copied = false;
winrt::com_ptr<ID3D11Texture2D> frameTexture;
hr = resource->QueryInterface(IID_PPV_ARGS(frameTexture.put()));
if (SUCCEEDED(hr) && frameTexture && m_outputTexture)
{
D3D11_TEXTURE2D_DESC frameDesc{};
frameTexture->GetDesc(&frameDesc);

DXGI_FORMAT frameFormat = frameDesc.Format == DXGI_FORMAT_R16G16B16A16_FLOAT
? DXGI_FORMAT_R16G16B16A16_FLOAT
: DXGI_FORMAT_B8G8R8A8_UNORM;

if (frameDesc.Width != m_width || frameDesc.Height != m_height || frameFormat != m_outputFormat)
{
m_width = frameDesc.Width;
m_height = frameDesc.Height;
m_outputFormat = frameFormat;
m_outputTexture = nullptr;
m_bitmap = nullptr;
CreateOutputTextureAndBitmap(dc, m_d3dDevice.get(), m_width, m_height, m_outputFormat);
}

winrt::com_ptr<ID3D11DeviceContext> context;
m_d3dDevice->GetImmediateContext(context.put());
if (context && m_outputTexture)
{
context->CopyResource(m_outputTexture.get(), frameTexture.get());
copied = true;
++m_frameCount;
}
}

m_duplication->ReleaseFrame();
return copied;
}
}
68 changes: 68 additions & 0 deletions Effects/DxgiDuplicationSourceProvider.h
Original file line number Diff line number Diff line change
@@ -0,0 +1,68 @@
#pragma once

#include "pch_engine.h"
#include "../EngineExport.h"

namespace ShaderLab::Effects
{
struct SHADERLAB_API DxgiOutputInfo
{
uint32_t adapterIndex{ 0 };
uint32_t outputIndex{ 0 };
std::wstring deviceName;
RECT desktopCoordinates{};
bool attachedToDesktop{ false };
};

class SHADERLAB_API DxgiDuplicationSourceProvider
{
public:
DxgiDuplicationSourceProvider() = default;
DxgiDuplicationSourceProvider(const DxgiDuplicationSourceProvider&) = delete;
DxgiDuplicationSourceProvider& operator=(const DxgiDuplicationSourceProvider&) = delete;
~DxgiDuplicationSourceProvider();

static std::vector<DxgiOutputInfo> EnumerateOutputs(ID3D11Device* d3dDevice = nullptr);

bool Open(
ID2D1DeviceContext5* dc,
ID3D11Device* d3dDevice,
uint32_t adapterIndex,
uint32_t outputIndex,
bool rawFP16 = false);
void Close();

bool IsOpen() const { return m_duplication != nullptr; }
bool CaptureNextFrame(ID2D1DeviceContext5* dc);
ID2D1Image* CurrentBitmap() const { return m_bitmap.get(); }

uint32_t Width() const { return m_width; }
uint32_t Height() const { return m_height; }
uint64_t FrameCount() const { return m_frameCount; }
uint32_t AdapterIndex() const { return m_adapterIndex; }
uint32_t OutputIndex() const { return m_outputIndex; }
bool RawFP16() const { return m_rawFP16; }
DXGI_FORMAT OutputFormat() const { return m_outputFormat; }
const std::wstring& OutputName() const { return m_outputName; }
const std::wstring& LastError() const { return m_lastError; }

private:
bool CreateOutputTextureAndBitmap(ID2D1DeviceContext5* dc, ID3D11Device* d3dDevice, uint32_t width, uint32_t height, DXGI_FORMAT format);
bool Reopen(ID2D1DeviceContext5* dc);

winrt::com_ptr<IDXGIOutputDuplication> m_duplication;
winrt::com_ptr<ID3D11Device> m_d3dDevice;
winrt::com_ptr<ID3D11Texture2D> m_outputTexture;
winrt::com_ptr<ID2D1Bitmap1> m_bitmap;

uint32_t m_adapterIndex{ 0 };
uint32_t m_outputIndex{ 0 };
uint32_t m_width{ 0 };
uint32_t m_height{ 0 };
bool m_rawFP16{ false };
DXGI_FORMAT m_outputFormat{ DXGI_FORMAT_B8G8R8A8_UNORM };
uint64_t m_frameCount{ 0 };
std::wstring m_outputName;
std::wstring m_lastError;
};
}
Loading
Loading