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[idd] implemented frame feed from the guest (very hacky)

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This is NOT READY for general consumption, if you decide to make
use of this driver, DO NOT ASK FOR SUPPORT.
This commit is contained in:
Geoffrey McRae 2023-04-11 16:55:58 +10:00
parent 3c85957b99
commit 0c3dce3ca6
8 changed files with 315 additions and 33 deletions
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106
idd/LGIdd/CIndirectDeviceContext.cpp
View File

@ -4,6 +4,8 @@
#include "CPlatformInfo.h"
#include "Debug.h"
#include <sstream>
static const struct LGMPQueueConfig FRAME_QUEUE_CONFIG =
{
LGMP_Q_FRAME, //queueID
@ -44,7 +46,7 @@ void CIndirectDeviceContext::InitAdapter()
return;
IDDCX_ADAPTER_CAPS caps = {};
caps.Size = sizeof(caps);
caps.Size = sizeof(caps);
caps.MaxMonitorsSupported = 1;
@ -73,7 +75,10 @@ void CIndirectDeviceContext::InitAdapter()
IDARG_OUT_ADAPTER_INIT initOut;
NTSTATUS status = IddCxAdapterInitAsync(&init, &initOut);
if (!NT_SUCCESS(status))
{
DBGPRINT("IddCxAdapterInitAsync Failed");
return;
}
m_adapter = initOut.AdapterObject;
@ -147,17 +152,18 @@ void CIndirectDeviceContext::FinishInit(UINT connectorIndex)
IDARG_OUT_MONITORCREATE createOut;
NTSTATUS status = IddCxMonitorCreate(m_adapter, &create, &createOut);
if (!NT_SUCCESS(status))
{
DBGPRINT("IddCxMonitorCreate Failed");
return;
}
auto * wrapper = WdfObjectGet_CIndirectMonitorContextWrapper(createOut.MonitorObject);
wrapper->context = new CIndirectMonitorContext(createOut.MonitorObject);
wrapper->context = new CIndirectMonitorContext(createOut.MonitorObject, this);
IDARG_OUT_MONITORARRIVAL out;
status = IddCxMonitorArrival(createOut.MonitorObject, &out);
}
#include <sstream>
bool CIndirectDeviceContext::SetupLGMP()
{
if (!m_ivshmem.Init() || !m_ivshmem.Open())
@ -177,6 +183,11 @@ bool CIndirectDeviceContext::SetupLGMP()
const std::string & model = CPlatformInfo::GetCPUModel();
KVMFRRecord_VMInfo * vmInfo = static_cast<KVMFRRecord_VMInfo *>(calloc(1, sizeof(*vmInfo)));
if (!vmInfo)
{
DBGPRINT("Failed to allocate KVMFRRecord_VMInfo");
return false;
}
vmInfo->cpus = static_cast<uint8_t>(CPlatformInfo::GetProcCount ());
vmInfo->cores = static_cast<uint8_t>(CPlatformInfo::GetCoreCount ());
vmInfo->sockets = static_cast<uint8_t>(CPlatformInfo::GetSocketCount());
@ -186,6 +197,12 @@ bool CIndirectDeviceContext::SetupLGMP()
strncpy_s(vmInfo->capture, "Idd Driver", sizeof(vmInfo->capture));
KVMFRRecord * record = static_cast<KVMFRRecord *>(calloc(1, sizeof(*record)));
if (!record)
{
DBGPRINT("Failed to allocate KVMFRRecord");
return false;
}
record->type = KVMFR_RECORD_VMINFO;
record->size = sizeof(*vmInfo) + (uint32_t)model.length() + 1;
@ -196,11 +213,23 @@ bool CIndirectDeviceContext::SetupLGMP()
{
KVMFRRecord_OSInfo * osInfo = static_cast<KVMFRRecord_OSInfo *>(calloc(1, sizeof(*osInfo)));
if (!osInfo)
{
DBGPRINT("Failed to allocate KVMFRRecord_OSInfo");
return false;
}
osInfo->os = KVMFR_OS_WINDOWS;
const std::string & osName = CPlatformInfo::GetProductName();
KVMFRRecord* record = static_cast<KVMFRRecord*>(calloc(1, sizeof(*record)));
if (!record)
{
DBGPRINT("Failed to allocate KVMFRRecord");
return false;
}
record->type = KVMFR_RECORD_OSINFO;
record->size = sizeof(*osInfo) + (uint32_t)osName.length() + 1;
@ -329,4 +358,73 @@ void CIndirectDeviceContext::LGMPTimer()
lgmpHostAckData(m_pointerQueue);
}
}
void CIndirectDeviceContext::SendFrame(int width, int height, int pitch, DXGI_FORMAT format, void* data)
{
if (!m_lgmp || !m_frameQueue)
return;
if (m_width != width || m_height != height || m_format != format)
{
m_width = width;
m_height = height;
m_format = format;
++m_formatVer;
}
while (lgmpHostQueuePending(m_frameQueue) == LGMP_Q_FRAME_LEN)
Sleep(0);
if (++m_frameIndex == LGMP_Q_FRAME_LEN)
m_frameIndex = 0;
KVMFRFrame * fi = (KVMFRFrame *)lgmpHostMemPtr(m_frameMemory[m_frameIndex]);
int bpp = 4;
switch (format)
{
case DXGI_FORMAT_B8G8R8A8_UNORM : fi->type = FRAME_TYPE_BGRA ; break;
case DXGI_FORMAT_R8G8B8A8_UNORM : fi->type = FRAME_TYPE_RGBA ; break;
case DXGI_FORMAT_R10G10B10A2_UNORM : fi->type = FRAME_TYPE_RGBA10 ; break;
case DXGI_FORMAT_R16G16B16A16_FLOAT:
fi->type = FRAME_TYPE_RGBA16F;
bpp = 8;
break;
default:
DBGPRINT("Unsuppoted DXGI format");
return;
}
//FIXME: this should not really be done here, this is a hack
#pragma warning(push)
#pragma warning(disable: 4200)
struct FrameBuffer
{
volatile uint32_t wp;
uint8_t data[0];
};
#pragma warning(pop)
fi->formatVer = m_formatVer;
fi->frameSerial = m_frameSerial++;
fi->screenWidth = width;
fi->screenHeight = height;
fi->frameWidth = width;
fi->frameHeight = height;
fi->stride = width * bpp;
fi->pitch = pitch;
fi->offset = (uint32_t)(CPlatformInfo::GetPageSize() - sizeof(FrameBuffer));
fi->flags = 0;
fi->rotation = FRAME_ROT_0;
fi->damageRectsCount = 0;
FrameBuffer * fb = (FrameBuffer *)(((uint8_t*)fi) + fi->offset);
fb->wp = 0;
lgmpHostQueuePost(m_frameQueue, 0, m_frameMemory[m_frameIndex]);
memcpy(fb->data, data, (size_t)height * (size_t)pitch);
fb->wp = height * pitch;
}

9
idd/LGIdd/CIndirectDeviceContext.h
View File

@ -29,8 +29,15 @@ private:
PLGMPMemory m_pointerShapeMemory[POINTER_SHAPE_BUFFERS] = {};
size_t m_maxFrameSize = 0;
int m_frameIndex = 0;
uint32_t m_formatVer = 0;
uint32_t m_frameSerial = 0;
PLGMPMemory m_frameMemory[LGMP_Q_FRAME_LEN] = {};
int m_width = 0;
int m_height = 0;
DXGI_FORMAT m_format = DXGI_FORMAT_UNKNOWN;
bool SetupLGMP();
void LGMPTimer();
@ -46,6 +53,8 @@ public:
void InitAdapter();
void FinishInit(UINT connectorIndex);
void SendFrame(int width, int height, int pitch, DXGI_FORMAT format, void* data);
};
struct CIndirectDeviceContextWrapper

7
idd/LGIdd/CIndirectMonitorContext.cpp
View File

@ -1,8 +1,9 @@
#include "CIndirectMonitorContext.h"
#include "Direct3DDevice.h"
CIndirectMonitorContext::CIndirectMonitorContext(_In_ IDDCX_MONITOR monitor) :
m_monitor(monitor)
CIndirectMonitorContext::CIndirectMonitorContext(_In_ IDDCX_MONITOR monitor, CIndirectDeviceContext * device) :
m_monitor(monitor),
m_devContext(device)
{
}
@ -21,7 +22,7 @@ void CIndirectMonitorContext::AssignSwapChain(IDDCX_SWAPCHAIN swapChain, LUID re
return;
}
m_thread.reset(new CSwapChainProcessor(swapChain, device, newFrameEvent));
m_thread.reset(new CSwapChainProcessor(m_devContext, swapChain, device, newFrameEvent));
}
void CIndirectMonitorContext::UnassignSwapChain()

4
idd/LGIdd/CIndirectMonitorContext.h
View File

@ -5,16 +5,18 @@
#include <IddCx.h>
#include <memory>
#include "CIndirectDeviceContext.h"
#include "CSwapChainProcessor.h"
class CIndirectMonitorContext
{
protected:
IDDCX_MONITOR m_monitor;
CIndirectDeviceContext * m_devContext;
std::unique_ptr<CSwapChainProcessor> m_thread;
public:
CIndirectMonitorContext(_In_ IDDCX_MONITOR monitor);
CIndirectMonitorContext(_In_ IDDCX_MONITOR monitor, CIndirectDeviceContext * device);
virtual ~CIndirectMonitorContext();

5
idd/LGIdd/CPlatformInfo.cpp
View File

@ -218,6 +218,11 @@ void CPlatformInfo::InitCPUInfo()
}
BYTE * buffer = static_cast<BYTE *>(_malloca(cb));
if (!buffer)
{
DBGPRINT("Failed to allocate buffer for processor information");
return;
}
if (!GetLogicalProcessorInformationEx(RelationAll,
(PSYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX)buffer, &cb))
{

177
idd/LGIdd/CSwapChainProcessor.cpp
View File

@ -1,36 +1,48 @@
#include "CSwapChainProcessor.h"
#include <avrt.h>
#include "Debug.h"
#define LOCK_CONTEXT() \
while (InterlockedCompareExchange((volatile LONG*)&m_contextLock, 1, 0) != 0) {};
CSwapChainProcessor::CSwapChainProcessor(IDDCX_SWAPCHAIN hSwapChain, std::shared_ptr<Direct3DDevice> device, HANDLE newFrameEvent) :
#define UNLOCK_CONTEXT() \
InterlockedExchange((volatile LONG*)&m_contextLock, 0);
CSwapChainProcessor::CSwapChainProcessor(CIndirectDeviceContext* devContext, IDDCX_SWAPCHAIN hSwapChain,
std::shared_ptr<Direct3DDevice> device, HANDLE newFrameEvent) :
m_devContext(devContext),
m_hSwapChain(hSwapChain),
m_device(device),
m_newFrameEvent(newFrameEvent)
{
{
m_terminateEvent.Attach(CreateEvent(nullptr, FALSE, FALSE, nullptr));
m_thread.Attach(CreateThread(nullptr, 0, RunThread, this, 0, nullptr));
m_thread[0].Attach(CreateThread(nullptr, 0, _SwapChainThread, this, 0, nullptr));
m_thread[1].Attach(CreateThread(nullptr, 0, _FrameThread , this, 0, nullptr));
}
CSwapChainProcessor::~CSwapChainProcessor()
{
SetEvent(m_terminateEvent.Get());
if (m_thread.Get())
WaitForSingleObject(m_thread.Get(), INFINITE);
if (m_thread[0].Get())
WaitForSingleObject(m_thread[0].Get(), INFINITE);
if (m_thread[1].Get())
WaitForSingleObject(m_thread[1].Get(), INFINITE);
}
DWORD CALLBACK CSwapChainProcessor::RunThread(LPVOID argument)
DWORD CALLBACK CSwapChainProcessor::_SwapChainThread(LPVOID arg)
{
reinterpret_cast<CSwapChainProcessor*>(argument)->Run();
reinterpret_cast<CSwapChainProcessor*>(arg)->SwapChainThread();
return 0;
}
void CSwapChainProcessor::Run()
void CSwapChainProcessor::SwapChainThread()
{
DWORD avTask = 0;
HANDLE avTaskHandle = AvSetMmThreadCharacteristicsW(L"Distribution", &avTask);
RunCore();
DBGPRINT("Start");
SwapChainThreadCore();
WdfObjectDelete((WDFOBJECT)m_hSwapChain);
m_hSwapChain = nullptr;
@ -38,28 +50,41 @@ void CSwapChainProcessor::Run()
AvRevertMmThreadCharacteristics(avTaskHandle);
}
void CSwapChainProcessor::RunCore()
void CSwapChainProcessor::SwapChainThreadCore()
{
Microsoft::WRL::ComPtr<IDXGIDevice> dxgiDevice;
HRESULT hr = m_device->m_device.As(&dxgiDevice);
if (FAILED(hr))
{
DBGPRINT("Failed to get the dxgiDevice");
return;
}
IDARG_IN_SWAPCHAINSETDEVICE setDevice = {};
setDevice.pDevice = dxgiDevice.Get();
LOCK_CONTEXT();
hr = IddCxSwapChainSetDevice(m_hSwapChain, &setDevice);
if (FAILED(hr))
return;
UNLOCK_CONTEXT();
if (FAILED(hr))
{
DBGPRINT("IddCxSwapChainSetDevice Failed");
return;
}
UINT lastFrameNumber = 0;
for (;;)
{
Microsoft::WRL::ComPtr<IDXGIResource> acquiredBuffer;
ComPtr<IDXGIResource> acquiredBuffer;
IDARG_OUT_RELEASEANDACQUIREBUFFER buffer = {};
hr = IddCxSwapChainReleaseAndAcquireBuffer(m_hSwapChain, &buffer);
LOCK_CONTEXT();
hr = IddCxSwapChainReleaseAndAcquireBuffer(m_hSwapChain, &buffer);
if (hr == E_PENDING)
{
UNLOCK_CONTEXT();
HANDLE waitHandles[] =
{
m_newFrameEvent,
@ -78,16 +103,132 @@ void CSwapChainProcessor::RunCore()
}
else if (SUCCEEDED(hr))
{
//acquiredBuffer.Attach(buffer.MetaData.pSurface);
if (buffer.MetaData.PresentationFrameNumber != lastFrameNumber)
{
lastFrameNumber = buffer.MetaData.PresentationFrameNumber;
if (m_copyCount < STAGING_TEXTURES)
{
acquiredBuffer.Attach(buffer.MetaData.pSurface);
SwapChainNewFrame(acquiredBuffer);
acquiredBuffer.Reset();
}
}
//TODO: process the frame
//acquiredBuffer.Reset();
hr = IddCxSwapChainFinishedProcessingFrame(m_hSwapChain);
UNLOCK_CONTEXT();
if (FAILED(hr))
break;
}
else
{
UNLOCK_CONTEXT();
break;
}
}
}
void CSwapChainProcessor::SwapChainNewFrame(ComPtr<IDXGIResource> acquiredBuffer)
{
Microsoft::WRL::ComPtr<ID3D11Texture2D> texture;
if (FAILED(acquiredBuffer->QueryInterface(__uuidof(ID3D11Texture2D), (void**)&texture)))
{
DBGPRINT("Failed to obtain the ID3D11Texture2D from the acquiredBuffer");
return;
}
D3D11_TEXTURE2D_DESC desc;
texture->GetDesc(&desc);
if (!SetupStagingTexture(m_cpuTex[m_texWIndex], desc.Width, desc.Height, desc.Format))
return;
m_device->m_context->CopyResource(m_cpuTex[m_texWIndex].tex.Get(), texture.Get());
InterlockedAdd(&m_copyCount, 1);
if (++m_texWIndex == STAGING_TEXTURES)
m_texWIndex = 0;
}
DWORD CALLBACK CSwapChainProcessor::_FrameThread(LPVOID arg)
{
reinterpret_cast<CSwapChainProcessor*>(arg)->FrameThread();
return 0;
}
void CSwapChainProcessor::FrameThread()
{
for(;;)
{
if (WaitForSingleObject(m_terminateEvent.Get(), 0) == WAIT_OBJECT_0)
break;
if (!m_copyCount)
{
Sleep(0);
continue;
}
D3D11_MAPPED_SUBRESOURCE map;
StagingTexture & t = m_cpuTex[m_texRIndex];
LOCK_CONTEXT();
HRESULT status = m_device->m_context->Map(t.tex.Get(), 0, D3D11_MAP_READ, D3D11_MAP_FLAG_DO_NOT_WAIT, &map);
UNLOCK_CONTEXT();
if (FAILED(status))
{
if (status == DXGI_ERROR_WAS_STILL_DRAWING)
continue;
DBGPRINT("Failed to map staging texture");
InterlockedAdd(&m_copyCount, -1);
if (++m_texRIndex == STAGING_TEXTURES)
m_texRIndex = 0;
continue;
}
m_devContext->SendFrame(t.width, t.height, map.RowPitch, t.format, map.pData);
LOCK_CONTEXT();
m_device->m_context->Unmap(t.tex.Get(), 0);
UNLOCK_CONTEXT();
InterlockedAdd(&m_copyCount, -1);
if (++m_texRIndex == STAGING_TEXTURES)
m_texRIndex = 0;
}
}
bool CSwapChainProcessor::SetupStagingTexture(StagingTexture & t, int width, int height, DXGI_FORMAT format)
{
if (t.width == width && t.height == height && t.format == format)
return true;
t.tex.Reset();
t.width = width;
t.height = height;
t.format = format;
D3D11_TEXTURE2D_DESC desc = {};
desc.Width = width;
desc.Height = height;
desc.MipLevels = 1;
desc.ArraySize = 1;
desc.SampleDesc.Count = 1;
desc.SampleDesc.Quality = 0;
desc.Usage = D3D11_USAGE_STAGING;
desc.Format = format;
desc.BindFlags = 0;
desc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
desc.MiscFlags = 0;
if (FAILED(m_device->m_device->CreateTexture2D(&desc, nullptr, &t.tex)))
{
DBGPRINT("Failed to create staging texture");
return false;
}
return true;
}

39
idd/LGIdd/CSwapChainProcessor.h
View File

@ -1,30 +1,55 @@
#pragma once
#include "Direct3DDevice.h"
#include "CIndirectDeviceContext.h"
#include <Windows.h>
#include <wrl.h>
#include <IddCx.h>
#include <memory>
using namespace Microsoft::WRL;
#define STAGING_TEXTURES 3
class CSwapChainProcessor
{
private:
CIndirectDeviceContext * m_devContext;
IDDCX_SWAPCHAIN m_hSwapChain;
std::shared_ptr<Direct3DDevice> m_device;
HANDLE m_newFrameEvent;
Microsoft::WRL::Wrappers::HandleT<
Microsoft::WRL::Wrappers::HandleTraits::HANDLENullTraits> m_thread;
Microsoft::WRL::Wrappers::Event m_terminateEvent;
Wrappers::HandleT<Wrappers::HandleTraits::HANDLENullTraits> m_thread[2];
Wrappers::Event m_terminateEvent;
static DWORD CALLBACK RunThread(LPVOID argument);
static DWORD CALLBACK _SwapChainThread(LPVOID arg);
static DWORD CALLBACK _FrameThread(LPVOID arg);
void Run();
void RunCore();
void SwapChainThread();
void SwapChainThreadCore();
void SwapChainNewFrame(ComPtr<IDXGIResource> acquiredBuffer);
void FrameThread();
struct StagingTexture
{
int width;
int height;
DXGI_FORMAT format;
Microsoft::WRL::ComPtr<ID3D11Texture2D> tex;
};
StagingTexture m_cpuTex[STAGING_TEXTURES] = {};
volatile LONG m_copyCount = 0;
volatile LONG m_contextLock = 0;
int m_texRIndex = 0;
int m_texWIndex = 0;
bool SetupStagingTexture(StagingTexture & t, int width, int height, DXGI_FORMAT format);
public:
CSwapChainProcessor(IDDCX_SWAPCHAIN hSwapChain,
CSwapChainProcessor(CIndirectDeviceContext * devContext, IDDCX_SWAPCHAIN hSwapChain,
std::shared_ptr<Direct3DDevice> device, HANDLE newFrameEvent);
~CSwapChainProcessor();
};

1
idd/LGIdd/Device.cpp
View File

@ -9,6 +9,7 @@
#include <avrt.h>
#include <wrl.h>
#include "Debug.h"
#include "CIndirectDeviceContext.h"
#include "CIndirectMonitorContext.h"