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[host] Added experimental H264 compression to DXGI (disabled by default)

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This is not yet working, the client is yet to be updated to support
decompressing this stream.
This commit is contained in:
Geoffrey McRae 2017-12-29 20:53:52 +11:00
parent 3d9230ac93
commit 03622f61b0
9 changed files with 687 additions and 115 deletions
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2
common/KVMFR.h
View File

@ -27,7 +27,7 @@ typedef enum FrameType
{
FRAME_TYPE_INVALID ,
FRAME_TYPE_ARGB , // ABGR interleaved: A,R,G,B 32bpp
FRAME_TYPE_RGB , // RGB interleaved : R,G,B 24bpp
FRAME_TYPE_H264 , // H264 compressed
FRAME_TYPE_MAX , // sentinel value
}
FrameType;

5
common/debug.h
View File

@ -59,3 +59,8 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#else
#define DEBUG_PROTO(fmt, ...) do {} while(0)
#endif
#ifdef _WIN32
#include "Util.h"
#define DEBUG_WINERROR(x, y) Util::DebugWinError(STRIPPATH(__FILE__), __LINE__, __FUNCTION__, x, y)
#endif

628
host/Capture/DXGI.cpp
View File

@ -23,7 +23,24 @@ using namespace Capture;
#include "common/debug.h"
#include "TraceUtil.h"
#include <mfapi.h>
#include <wmcodecdsp.h>
#include <codecapi.h>
#include <mferror.h>
#include <evr.h>
#include <mfreadwrite.h>
template <class T> void SafeRelease(T **ppT)
{
if (*ppT)
{
(*ppT)->Release();
*ppT = NULL;
}
}
DXGI::DXGI() :
m_cRef(1),
m_options(NULL),
m_initialized(false),
m_dxgiFactory(),
@ -33,7 +50,7 @@ DXGI::DXGI() :
m_texture(),
m_pointer(NULL)
{
MFStartup(MF_VERSION);
}
DXGI::~DXGI()
@ -66,15 +83,15 @@ bool DXGI::Initialize(CaptureOptions * options)
output->GetDesc(&outputDesc);
if (!outputDesc.AttachedToDesktop)
{
output.Release();
SafeRelease(&output);
continue;
}
m_output = output;
if (!m_output)
{
output.Release();
adapter.Release();
SafeRelease(&output);
SafeRelease(&adapter);
DEBUG_ERROR("Failed to get IDXGIOutput1");
DeInitialize();
return false;
@ -83,7 +100,7 @@ bool DXGI::Initialize(CaptureOptions * options)
m_width = outputDesc.DesktopCoordinates.right - outputDesc.DesktopCoordinates.left;
m_height = outputDesc.DesktopCoordinates.bottom - outputDesc.DesktopCoordinates.top;
output.Release();
SafeRelease(&output);
done = true;
break;
}
@ -91,7 +108,7 @@ bool DXGI::Initialize(CaptureOptions * options)
if (done)
break;
adapter.Release();
SafeRelease(&adapter);
}
if (!done)
@ -102,6 +119,8 @@ bool DXGI::Initialize(CaptureOptions * options)
}
static const D3D_FEATURE_LEVEL featureLevels[] = {
D3D_FEATURE_LEVEL_11_1,
D3D_FEATURE_LEVEL_11_0,
D3D_FEATURE_LEVEL_10_1,
D3D_FEATURE_LEVEL_10_0,
D3D_FEATURE_LEVEL_9_3,
@ -119,29 +138,54 @@ bool DXGI::Initialize(CaptureOptions * options)
adapter,
D3D_DRIVER_TYPE_UNKNOWN,
NULL,
CREATE_FLAGS,
CREATE_FLAGS | D3D11_CREATE_DEVICE_VIDEO_SUPPORT,
featureLevels, ARRAYSIZE(featureLevels),
D3D11_SDK_VERSION,
&m_device,
&m_featureLevel,
&m_deviceContext
);
#undef CREATE_FLAGS
adapter.Release();
SafeRelease(&adapter);
#undef CREATE_FLAGS
if (FAILED(status))
{
DEBUG_ERROR("Failed to create D3D11 device");
DEBUG_WINERROR("Failed to create D3D11 device", status);
DeInitialize();
return false;
}
IDXGIDevicePtr dxgi;
if (FAILED(m_device->QueryInterface(__uuidof(IDXGIDevice), (void **)&dxgi)))
bool h264 = false;
for(CaptureOptions::const_iterator it = m_options->cbegin(); it != m_options->cend(); ++it)
{
DEBUG_ERROR("Failed to obtain the IDXGIDevice interface from the D3D11 device");
if (_stricmp(*it, "h264") == 0) h264 = true;
}
if (h264)
{
DEBUG_WARN("Enabling experimental H.264 compression");
m_frameType = FRAME_TYPE_H264;
if (!InitH264Capture())
{
DeInitialize();
return false;
}
}
else
{
m_frameType = FRAME_TYPE_ARGB;
if (!InitRawCapture())
{
DeInitialize();
return false;
}
}
IDXGIDevicePtr dxgi;
status = m_device->QueryInterface(__uuidof(IDXGIDevice), (void **)&dxgi);
if (FAILED(status))
{
DEBUG_WINERROR("Failed to obtain the IDXGIDevice interface from the D3D11 device", status);
DeInitialize();
return false;
}
@ -160,11 +204,17 @@ bool DXGI::Initialize(CaptureOptions * options)
if (FAILED(status))
{
DEBUG_ERROR("DuplicateOutput Failed: %08x", (int)status);
DEBUG_WINERROR("DuplicateOutput Failed", status);
DeInitialize();
return false;
}
m_initialized = true;
return true;
}
bool DXGI::InitRawCapture()
{
D3D11_TEXTURE2D_DESC texDesc;
ZeroMemory(&texDesc, sizeof(texDesc));
texDesc.Width = m_width;
@ -179,15 +229,180 @@ bool DXGI::Initialize(CaptureOptions * options)
texDesc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
texDesc.MiscFlags = 0;
status = m_device->CreateTexture2D(&texDesc, NULL, &m_texture);
HRESULT status = m_device->CreateTexture2D(&texDesc, NULL, &m_texture);
if (FAILED(status))
{
DEBUG_ERROR("Failed to create texture: %08x", (int)status);
DeInitialize();
DEBUG_WINERROR("Failed to create texture", status);
return false;
}
m_initialized = true;
return true;
}
bool DXGI::InitH264Capture()
{
HRESULT status;
MFT_REGISTER_TYPE_INFO typeInfo;
IMFActivate **activationPointers;
UINT32 activationPointerCount;
ID3D10MultithreadPtr mt(m_device);
mt->SetMultithreadProtected(TRUE);
m_encodeEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
InitializeCriticalSection(&m_encodeCS);
typeInfo.guidMajorType = MFMediaType_Video;
typeInfo.guidSubtype = MFVideoFormat_H264;
status = MFTEnumEx(
MFT_CATEGORY_VIDEO_ENCODER,
MFT_ENUM_FLAG_HARDWARE,
NULL,
&typeInfo,
&activationPointers,
&activationPointerCount
);
if (FAILED(status))
{
DEBUG_WINERROR("Failed to enumerate encoder MFTs", status);
return false;
}
if (activationPointerCount == 0)
{
DEBUG_WINERROR("Hardware H264 MFT not available", status);
return false;
}
{
UINT32 nameLen = 0;
activationPointers[0]->GetStringLength(MFT_FRIENDLY_NAME_Attribute, &nameLen);
wchar_t * name = new wchar_t[nameLen+1];
activationPointers[0]->GetString(MFT_FRIENDLY_NAME_Attribute, name, nameLen + 1, NULL);
DEBUG_INFO("Using Encoder: %S", name);
delete[] name;
}
status = activationPointers[0]->ActivateObject(IID_PPV_ARGS(&m_mfTransform));
if (FAILED(status))
{
CoTaskMemFree(activationPointers);
DEBUG_WINERROR("Failed to create H264 encoder MFT", status);
return false;
}
CoTaskMemFree(activationPointers);
IMFAttributesPtr attribs;
m_mfTransform->GetAttributes(&attribs);
attribs->SetUINT32 (MF_READWRITE_ENABLE_HARDWARE_TRANSFORMS , TRUE);
attribs->SetUINT32 (MF_SOURCE_READER_ENABLE_VIDEO_PROCESSING , TRUE);
attribs->SetUINT32 (MF_SOURCE_READER_ENABLE_ADVANCED_VIDEO_PROCESSING, TRUE);
attribs->SetUINT32 (MF_LOW_LATENCY , TRUE);
UINT32 d3d11Aware = 0;
UINT32 async = 0;
attribs->GetUINT32(MF_TRANSFORM_ASYNC, &async);
attribs->GetUINT32(MF_SA_D3D11_AWARE, &d3d11Aware);
if (async)
attribs->SetUINT32(MF_TRANSFORM_ASYNC_UNLOCK, TRUE);
SafeRelease(&attribs);
status = m_mfTransform.QueryInterface(IID_PPV_ARGS(&m_mediaEventGen));
if (FAILED(status))
{
DEBUG_WINERROR("Failed to obtain th emedia event generator interface", status);
return false;
}
status = m_mediaEventGen->BeginGetEvent(this, NULL);
if (FAILED(status))
{
DEBUG_WINERROR("Failed to set the begin get event", status);
return false;
}
if (d3d11Aware)
{
MFCreateDXGIDeviceManager(&m_resetToken, &m_mfDeviceManager);
status = m_mfDeviceManager->ResetDevice(m_device, m_resetToken);
if (FAILED(status))
{
DEBUG_WINERROR("Failed to call reset device", status);
return false;
}
status = m_mfTransform->ProcessMessage(MFT_MESSAGE_SET_D3D_MANAGER, ULONG_PTR(m_mfDeviceManager.GetInterfacePtr()));
if (FAILED(status))
{
DEBUG_WINERROR("Failed to set the D3D manager", status);
return false;
}
}
IMFMediaTypePtr outType;
MFCreateMediaType(&outType);
outType->SetGUID (MF_MT_MAJOR_TYPE , MFMediaType_Video);
outType->SetGUID (MF_MT_SUBTYPE , MFVideoFormat_H264);
outType->SetUINT32(MF_MT_AVG_BITRATE , 240000);
outType->SetUINT32(MF_MT_INTERLACE_MODE , MFVideoInterlace_Progressive);
outType->SetUINT32(MF_MT_MPEG2_PROFILE , eAVEncH264VProfile_444);
outType->SetUINT32(MF_MT_ALL_SAMPLES_INDEPENDENT, TRUE);
MFSetAttributeSize (outType, MF_MT_FRAME_SIZE , m_width, m_height);
MFSetAttributeRatio(outType, MF_MT_FRAME_RATE , 30, 1);
MFSetAttributeRatio(outType, MF_MT_PIXEL_ASPECT_RATIO, 1, 1);
status = m_mfTransform->SetOutputType(0, outType, 0);
if (FAILED(status))
{
DEBUG_WINERROR("Failed to set the output media type on the H264 encoder MFT", status);
return false;
}
IMFMediaTypePtr inType;
MFCreateMediaType(&inType);
inType->SetGUID (MF_MT_MAJOR_TYPE , MFMediaType_Video );
inType->SetGUID (MF_MT_SUBTYPE , MFVideoFormat_NV12);
inType->SetUINT32(MF_MT_INTERLACE_MODE , MFVideoInterlace_Progressive);
inType->SetUINT32(MF_MT_ALL_SAMPLES_INDEPENDENT, TRUE);
MFSetAttributeSize (inType, MF_MT_FRAME_SIZE , m_width, m_height);
MFSetAttributeRatio(inType, MF_MT_FRAME_RATE , 30, 1);
MFSetAttributeRatio(inType, MF_MT_PIXEL_ASPECT_RATIO, 1 , 1);
status = m_mfTransform->SetInputType(0, inType, 0);
if (FAILED(status))
{
DEBUG_WINERROR("Failed to set the input media type on the H264 encoder MFT", status);
return false;
}
m_mfTransform->ProcessMessage(MFT_MESSAGE_COMMAND_FLUSH , NULL);
m_mfTransform->ProcessMessage(MFT_MESSAGE_NOTIFY_BEGIN_STREAMING, NULL);
m_mfTransform->ProcessMessage(MFT_MESSAGE_NOTIFY_START_OF_STREAM, NULL);
#if 0
status = MFTRegisterLocalByCLSID(
__uuidof(CColorConvertDMO),
MFT_CATEGORY_VIDEO_PROCESSOR,
L"",
MFT_ENUM_FLAG_SYNCMFT,
0,
NULL,
0,
NULL
);
if (FAILED(status))
{
DEBUG_ERROR("Failed to register color converter DSP");
return false;
}
#endif
return true;
}
@ -212,23 +427,22 @@ void DXGI::DeInitialize()
m_surfaceMapped = false;
}
if (m_texture)
m_texture.Release();
SafeRelease(&m_texture);
SafeRelease(&m_dup);
SafeRelease(&m_output);
SafeRelease(&m_deviceContext);
SafeRelease(&m_device);
SafeRelease(&m_dxgiFactory);
SafeRelease(&m_mfTransform);
SafeRelease(&m_mfDeviceManager);
SafeRelease(&m_mediaEventGen);
if (m_dup)
m_dup.Release();
if (m_output)
m_output.Release();
if (m_deviceContext)
m_deviceContext.Release();
if (m_device)
m_device.Release();
if (m_dxgiFactory)
m_dxgiFactory.Release();
if (m_encodeEvent)
{
CloseHandle(m_encodeEvent);
m_encodeEvent = NULL;
DeleteCriticalSection(&m_encodeCS);
}
m_initialized = false;
}
@ -237,8 +451,7 @@ FrameType DXGI::GetFrameType()
{
if (!m_initialized)
return FRAME_TYPE_INVALID;
return FRAME_TYPE_ARGB;
return m_frameType;
}
size_t DXGI::GetMaxFrameSize()
@ -249,6 +462,89 @@ size_t DXGI::GetMaxFrameSize()
return (m_width * m_height * 4);
}
STDMETHODIMP Capture::DXGI::Invoke(IMFAsyncResult * pAsyncResult)
{
HRESULT status, evtStatus;
MediaEventType meType = MEUnknown;
IMFMediaEvent *pEvent = NULL;
status = m_mediaEventGen->EndGetEvent(pAsyncResult, &pEvent);
if (FAILED(status))
{
DEBUG_WINERROR("EndGetEvent", status);
return status;
}
status = pEvent->GetStatus(&evtStatus);
if (FAILED(status))
{
SafeRelease(&pEvent);
DEBUG_WINERROR("GetStatus", status);
return status;
}
if (FAILED(evtStatus))
{
SafeRelease(&pEvent);
DEBUG_WINERROR("evtStatus", evtStatus);
return evtStatus;
}
status = pEvent->GetType(&meType);
if (FAILED(status))
{
SafeRelease(&pEvent);
DEBUG_WINERROR("GetType", status);
return status;
}
SafeRelease(&pEvent);
switch (meType)
{
case METransformNeedInput:
EnterCriticalSection(&m_encodeCS);
m_encodeNeedsData = true;
SetEvent(m_encodeEvent);
LeaveCriticalSection(&m_encodeCS);
break;
case METransformHaveOutput:
EnterCriticalSection(&m_encodeCS);
m_encodeHasData = true;
SetEvent(m_encodeEvent);
LeaveCriticalSection(&m_encodeCS);
break;
case METransformDrainComplete:
{
status = m_mfTransform->ProcessMessage(MFT_MESSAGE_COMMAND_FLUSH, 0);
if (FAILED(status))
{
DEBUG_WINERROR("MFT_MESSAGE_COMMAND_FLUSH", status);
return status;
}
break;
}
case MEError:
DEBUG_INFO("err");
break;
default:
DEBUG_INFO("unk");
break;
}
status = m_mediaEventGen->BeginGetEvent(this, NULL);
if (FAILED(status))
{
DEBUG_WINERROR("BeginGetEvent", status);
return status;
}
return status;
}
void DXGI::WaitForDesktop()
{
HDESK desktop;
@ -263,7 +559,7 @@ void DXGI::WaitForDesktop()
CloseDesktop(desktop);
}
GrabStatus DXGI::GrabFrame(FrameInfo & frame)
GrabStatus Capture::DXGI::GrabFrameTexture(FrameInfo & frame, ID3D11Texture2DPtr & texture)
{
if (!m_initialized)
return GRAB_STATUS_ERROR;
@ -273,9 +569,9 @@ GrabStatus DXGI::GrabFrame(FrameInfo & frame)
HRESULT status;
bool cursorUpdate = false;
for(int i = 0; i < 2; ++i)
for (int i = 0; i < 2; ++i)
{
while(true)
while (true)
{
if (m_releaseFrame)
{
@ -284,16 +580,16 @@ GrabStatus DXGI::GrabFrame(FrameInfo & frame)
switch (status)
{
case S_OK:
break;
case S_OK:
break;
case DXGI_ERROR_INVALID_CALL:
DEBUG_ERROR("Frame was already released");
return GRAB_STATUS_ERROR;
case DXGI_ERROR_INVALID_CALL:
DEBUG_ERROR("Frame was already released");
return GRAB_STATUS_ERROR;
case DXGI_ERROR_ACCESS_LOST:
WaitForDesktop();
return GRAB_STATUS_REINIT;
case DXGI_ERROR_ACCESS_LOST:
WaitForDesktop();
return GRAB_STATUS_REINIT;
}
}
@ -305,9 +601,9 @@ GrabStatus DXGI::GrabFrame(FrameInfo & frame)
m_memcpy.Wake();
// send the last frame again if we timeout to prevent the client stalling on restart
frame.width = m_width;
frame.width = m_width;
frame.height = m_height;
frame.pitch = m_mapping.RowPitch;
frame.pitch = m_mapping.RowPitch;
frame.stride = m_mapping.RowPitch / 4;
unsigned int size = m_height * m_mapping.RowPitch;
@ -326,18 +622,18 @@ GrabStatus DXGI::GrabFrame(FrameInfo & frame)
if (
m_lastMousePos.x != frameInfo.PointerPosition.Position.x ||
m_lastMousePos.y != frameInfo.PointerPosition.Position.y
) {
cursorUpdate = true;
frame.cursor.hasPos = true;
frame.cursor.x = frameInfo.PointerPosition.Position.x;
frame.cursor.y = frameInfo.PointerPosition.Position.y;
m_lastMousePos.x = frameInfo.PointerPosition.Position.x;
m_lastMousePos.y = frameInfo.PointerPosition.Position.y;
) {
cursorUpdate = true;
frame.cursor.hasPos = true;
frame.cursor.x = frameInfo.PointerPosition.Position.x;
frame.cursor.y = frameInfo.PointerPosition.Position.y;
m_lastMousePos.x = frameInfo.PointerPosition.Position.x;
m_lastMousePos.y = frameInfo.PointerPosition.Position.y;
}
if (m_lastMouseVis != frameInfo.PointerPosition.Visible)
{
cursorUpdate = true;
cursorUpdate = true;
m_lastMouseVis = frameInfo.PointerPosition.Visible;
}
@ -352,7 +648,7 @@ GrabStatus DXGI::GrabFrame(FrameInfo & frame)
{
if (m_pointer)
delete[] m_pointer;
m_pointer = new BYTE[frameInfo.PointerShapeBufferSize];
m_pointer = new BYTE[frameInfo.PointerShapeBufferSize];
m_pointerBufSize = frameInfo.PointerShapeBufferSize;
}
@ -360,32 +656,32 @@ GrabStatus DXGI::GrabFrame(FrameInfo & frame)
status = m_dup->GetFramePointerShape(m_pointerBufSize, m_pointer, &m_pointerSize, &shapeInfo);
if (!SUCCEEDED(status))
{
DEBUG_ERROR("Failed to get the new pointer shape: %08x", (int)status);
DEBUG_WINERROR("Failed to get the new pointer shape", status);
return GRAB_STATUS_ERROR;
}
switch (shapeInfo.Type)
{
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_COLOR : frame.cursor.type = CURSOR_TYPE_COLOR; break;
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MASKED_COLOR: frame.cursor.type = CURSOR_TYPE_MASKED_COLOR; break;
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MONOCHROME : frame.cursor.type = CURSOR_TYPE_MONOCHROME; break;
default:
DEBUG_ERROR("Invalid cursor type");
return GRAB_STATUS_ERROR;
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_COLOR: frame.cursor.type = CURSOR_TYPE_COLOR; break;
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MASKED_COLOR: frame.cursor.type = CURSOR_TYPE_MASKED_COLOR; break;
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MONOCHROME: frame.cursor.type = CURSOR_TYPE_MONOCHROME; break;
default:
DEBUG_ERROR("Invalid cursor type");
return GRAB_STATUS_ERROR;
}
frame.cursor.hasShape = true;
frame.cursor.shape = m_pointer;
frame.cursor.w = shapeInfo.Width;
frame.cursor.h = shapeInfo.Height;
frame.cursor.pitch = shapeInfo.Pitch;
frame.cursor.shape = m_pointer;
frame.cursor.w = shapeInfo.Width;
frame.cursor.h = shapeInfo.Height;
frame.cursor.pitch = shapeInfo.Pitch;
frame.cursor.dataSize = m_pointerSize;
}
if (frameInfo.LastPresentTime.QuadPart != 0)
break;
res.Release();
SafeRelease(&res);
if (cursorUpdate)
return GRAB_STATUS_CURSOR;
@ -397,35 +693,47 @@ GrabStatus DXGI::GrabFrame(FrameInfo & frame)
switch (status)
{
// desktop switch, mode change, switch DWM on or off or Secure Desktop
case DXGI_ERROR_ACCESS_LOST:
case WAIT_ABANDONED:
WaitForDesktop();
return GRAB_STATUS_REINIT;
case DXGI_ERROR_ACCESS_LOST:
case WAIT_ABANDONED:
WaitForDesktop();
return GRAB_STATUS_REINIT;
default:
// unknown failure
DEBUG_INFO("AcquireNextFrame failed: %08x", (int)status);
return GRAB_STATUS_ERROR;
default:
// unknown failure
DEBUG_WINERROR("AcquireNextFrame failed", status);
return GRAB_STATUS_ERROR;
}
}
// retry count exceeded
if (FAILED(status))
{
DEBUG_ERROR("Failed to acquire next frame");
DEBUG_WINERROR("Failed to acquire next frame", status);
return GRAB_STATUS_ERROR;
}
ID3D11Texture2DPtr src(res);
res.Release();
if (!src)
res.QueryInterface(IID_PPV_ARGS(&texture));
SafeRelease(&res);
if (!texture)
{
DEBUG_ERROR("Failed to get src ID3D11Texture2D");
return GRAB_STATUS_ERROR;
}
return GRAB_STATUS_OK;
}
GrabStatus Capture::DXGI::GrabFrameRaw(FrameInfo & frame)
{
GrabStatus result;
ID3D11Texture2DPtr src;
result = GrabFrameTexture(frame, src);
if (result != GRAB_STATUS_OK)
return result;
m_deviceContext->CopyResource(m_texture, src);
src.Release();
SafeRelease(&src);
if (m_surfaceMapped)
{
@ -433,10 +741,11 @@ GrabStatus DXGI::GrabFrame(FrameInfo & frame)
m_surfaceMapped = false;
}
HRESULT status;
status = m_deviceContext->Map(m_texture, 0, D3D11_MAP_READ, 0, &m_mapping);
if (FAILED(status))
{
DEBUG_ERROR("Failed to map the texture: %08x", (int)status);
DEBUG_WINERROR("Failed to map the texture", status);
DeInitialize();
return GRAB_STATUS_ERROR;
}
@ -446,10 +755,8 @@ GrabStatus DXGI::GrabFrame(FrameInfo & frame)
// wake up the copy threads
m_memcpy.Wake();
frame.width = m_width;
frame.height = m_height;
frame.pitch = m_mapping.RowPitch;
frame.stride = m_mapping.RowPitch >> 2;
frame.pitch = m_mapping.RowPitch;
frame.stride = m_mapping.RowPitch >> 2;
const unsigned int size = m_height * m_mapping.RowPitch;
m_memcpy.Copy(frame.buffer, m_mapping.pData, size < frame.bufferSize ? size : frame.bufferSize);
@ -457,3 +764,144 @@ GrabStatus DXGI::GrabFrame(FrameInfo & frame)
return GRAB_STATUS_OK;
}
GrabStatus Capture::DXGI::GrabFrameH264(FrameInfo & frame)
{
while(true)
{
// only reset the event if there isn't work pending
EnterCriticalSection(&m_encodeCS);
if (!m_encodeHasData && !m_encodeNeedsData)
ResetEvent(m_encodeEvent);
LeaveCriticalSection(&m_encodeCS);
switch (WaitForSingleObject(m_encodeEvent, 1000))
{
case WAIT_FAILED:
DEBUG_WINERROR("Wait for encode event failed", GetLastError());
return GRAB_STATUS_ERROR;
case WAIT_ABANDONED:
DEBUG_ERROR("Wait abandoned");
return GRAB_STATUS_ERROR;
case WAIT_TIMEOUT:
continue;
case WAIT_OBJECT_0:
break;
}
EnterCriticalSection(&m_encodeCS);
HRESULT status;
if (m_encodeNeedsData)
{
LeaveCriticalSection(&m_encodeCS);
GrabStatus result;
ID3D11Texture2DPtr src;
result = GrabFrameTexture(frame, src);
if (result != GRAB_STATUS_OK)
{
return result;
}
// cursor data may be returned, only turn off the flag if we have a frame
EnterCriticalSection(&m_encodeCS);
m_encodeNeedsData = false;
LeaveCriticalSection(&m_encodeCS);
IMFMediaBufferPtr buffer;
status = MFCreateDXGISurfaceBuffer(__uuidof(ID3D11Texture2D), src, 0, FALSE, &buffer);
if (FAILED(status))
{
DEBUG_WINERROR("Failed to create DXGI surface buffer from texture", status);
return GRAB_STATUS_ERROR;
}
IMF2DBufferPtr imfBuffer(buffer);
DWORD length;
imfBuffer->GetContiguousLength(&length);
buffer->SetCurrentLength(length);
SafeRelease(&imfBuffer);
IMFSamplePtr sample;
MFCreateSample(&sample);
sample->AddBuffer(buffer);
status = m_mfTransform->ProcessInput(0, sample, 0);
if (FAILED(status))
{
DEBUG_WINERROR("Failed to process the input", status);
return GRAB_STATUS_ERROR;
}
SafeRelease(&src );
SafeRelease(&sample);
SafeRelease(&buffer);
EnterCriticalSection(&m_encodeCS);
}
if (m_encodeHasData)
{
m_encodeHasData = false;
LeaveCriticalSection(&m_encodeCS);
// wake up the copy threads
TRACE_START("copy");
m_memcpy.Wake();
MFT_OUTPUT_STREAM_INFO streamInfo;
status = m_mfTransform->GetOutputStreamInfo(0, &streamInfo);
if (FAILED(status))
{
DEBUG_WINERROR("GetOutputStreamInfo", status);
return GRAB_STATUS_ERROR;
}
DWORD outStatus;
MFT_OUTPUT_DATA_BUFFER outDataBuffer;
outDataBuffer.dwStreamID = 0;
outDataBuffer.dwStatus = 0;
outDataBuffer.pEvents = NULL;
outDataBuffer.pSample = NULL;
status = m_mfTransform->ProcessOutput(0, 1, &outDataBuffer, &outStatus);
if (FAILED(status))
{
DEBUG_WINERROR("ProcessOutput", status);
return GRAB_STATUS_ERROR;
}
IMFMediaBufferPtr buffer;
MFCreateAlignedMemoryBuffer((DWORD)frame.bufferSize, MF_128_BYTE_ALIGNMENT, &buffer);
outDataBuffer.pSample->CopyToBuffer(buffer);
SafeRelease(&outDataBuffer.pEvents);
SafeRelease(&outDataBuffer.pSample);
BYTE *pixels;
DWORD maxLen, curLen;
buffer->Lock(&pixels, &maxLen, &curLen);
m_memcpy.Copy(frame.buffer, pixels, curLen);
buffer->Unlock();
SafeRelease(&buffer);
TRACE_END;
return GRAB_STATUS_OK;
}
LeaveCriticalSection(&m_encodeCS);
}
}
GrabStatus DXGI::GrabFrame(FrameInfo & frame)
{
frame.width = m_width;
frame.height = m_height;
if (m_frameType == FRAME_TYPE_H264)
return GrabFrameH264(frame);
else
return GrabFrameRaw(frame);
}

74
host/Capture/DXGI.h
View File

@ -24,14 +24,17 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#define W32_LEAN_AND_MEAN
#include <windows.h>
#include <shlwapi.h>
#include <dxgi1_2.h>
#include <d3d11.h>
#include <mftransform.h>
#include <stdio.h>
#include <comdef.h>
_COM_SMARTPTR_TYPEDEF(IDXGIFactory1 , __uuidof(IDXGIFactory1 ));
_COM_SMARTPTR_TYPEDEF(ID3D11Device , __uuidof(ID3D11Device ));
_COM_SMARTPTR_TYPEDEF(ID3D11DeviceContext , __uuidof(ID3D11DeviceContext ));
_COM_SMARTPTR_TYPEDEF(ID3D10Multithread , __uuidof(ID3D10Multithread ));
_COM_SMARTPTR_TYPEDEF(IDXGIDevice , __uuidof(IDXGIDevice ));
_COM_SMARTPTR_TYPEDEF(IDXGIOutput1 , __uuidof(IDXGIOutput1 ));
_COM_SMARTPTR_TYPEDEF(IDXGIOutput , __uuidof(IDXGIOutput ));
@ -40,17 +43,28 @@ _COM_SMARTPTR_TYPEDEF(IDXGIOutputDuplication, __uuidof(IDXGIOutputDuplication));
_COM_SMARTPTR_TYPEDEF(ID3D11Texture2D , __uuidof(ID3D11Texture2D ));
_COM_SMARTPTR_TYPEDEF(IDXGIResource , __uuidof(IDXGIResource ));
_COM_SMARTPTR_TYPEDEF(IMFActivate , __uuidof(IMFActivate ));
_COM_SMARTPTR_TYPEDEF(IMFAttributes , __uuidof(IMFAttributes ));
_COM_SMARTPTR_TYPEDEF(IMFDXGIDeviceManager , __uuidof(IMFDXGIDeviceManager ));
_COM_SMARTPTR_TYPEDEF(IMFTransform , __uuidof(IMFTransform ));
_COM_SMARTPTR_TYPEDEF(IMFMediaEventGenerator, __uuidof(IMFMediaEventGenerator));
_COM_SMARTPTR_TYPEDEF(IMFMediaType , __uuidof(IMFMediaType ));
_COM_SMARTPTR_TYPEDEF(IMFSample , __uuidof(IMFSample ));
_COM_SMARTPTR_TYPEDEF(IMFMediaBuffer , __uuidof(IMFMediaBuffer ));
_COM_SMARTPTR_TYPEDEF(IMF2DBuffer , __uuidof(IMF2DBuffer ));
namespace Capture
{
class DXGI : public ICapture
class DXGI : public ICapture, public IMFAsyncCallback
{
public:
DXGI();
~DXGI();
virtual ~DXGI();
const char * GetName() { return "DXGI"; }
bool Initialize(CaptureOptions * options);
void DeInitialize();
bool ReInitialize()
{
@ -67,14 +81,54 @@ namespace Capture
size_t GetMaxFrameSize();
enum GrabStatus GrabFrame(struct FrameInfo & frame);
/*
Junk needed for the horrid IMFAsyncCallback interface
*/
STDMETHODIMP QueryInterface(REFIID riid, void ** ppv)
{
static const QITAB qit[] =
{
QITABENT(DXGI, IMFAsyncCallback),
{ NULL }
};
return QISearch(this, qit, riid, ppv);
}
STDMETHODIMP_(ULONG) AddRef()
{
return InterlockedIncrement(&m_cRef);
}
STDMETHODIMP_(ULONG) Release()
{
long cRef = InterlockedDecrement(&m_cRef);
if (!cRef)
delete this;
return cRef;
}
STDMETHODIMP GetParameters(DWORD *pdwFlags, DWORD *pdwQueue) { return E_NOTIMPL; }
STDMETHODIMP Invoke(IMFAsyncResult *pAsyncResult);
private:
bool InitRawCapture();
bool InitH264Capture();
GrabStatus DXGI::GrabFrameTexture(FrameInfo & frame, ID3D11Texture2DPtr & texture);
GrabStatus DXGI::GrabFrameRaw (FrameInfo & frame);
GrabStatus DXGI::GrabFrameH264 (FrameInfo & frame);
void WaitForDesktop();
long m_cRef;
CaptureOptions * m_options;
bool m_initialized;
unsigned int m_width;
unsigned int m_height;
bool m_initialized;
unsigned int m_width;
unsigned int m_height;
enum FrameType m_frameType;
MultiMemcpy m_memcpy;
IDXGIFactory1Ptr m_dxgiFactory;
@ -87,6 +141,16 @@ namespace Capture
ID3D11Texture2DPtr m_texture;
D3D11_MAPPED_SUBRESOURCE m_mapping;
bool m_surfaceMapped;
HANDLE m_encodeEvent;
bool m_encodeNeedsData, m_encodeHasData;
CRITICAL_SECTION m_encodeCS;
UINT m_resetToken;
IMFDXGIDeviceManagerPtr m_mfDeviceManager;
IMFTransformPtr m_mfTransform;
IMFMediaEventGeneratorPtr m_mediaEventGen;
BYTE * m_pointer;
UINT m_pointerBufSize;
UINT m_pointerSize;

24
host/MultiMemcpy.cpp
View File

@ -18,7 +18,6 @@ Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "MultiMemcpy.h"
#include "Util.h"
#include "common/memcpySSE.h"
MultiMemcpy::MultiMemcpy()
@ -27,6 +26,7 @@ MultiMemcpy::MultiMemcpy()
{
m_workers[i].id = (1 << i);
m_workers[i].running = &m_running;
m_workers[i].abort = false;
m_workers[i].start = CreateSemaphore(NULL, 0, 1, NULL);
m_workers[i].thread = CreateThread(0, 0, WorkerFunction, &m_workers[i], 0, NULL);
@ -44,15 +44,23 @@ MultiMemcpy::~MultiMemcpy()
void MultiMemcpy::Copy(void * dst, void * src, size_t size)
{
if (!m_awake)
Wake();
const size_t block = (size / MULTIMEMCPY_THREADS) & ~0x7F;
if (block == 0)
{
Abort();
memcpySSE(dst, src, size);
return;
}
const size_t block = size / MULTIMEMCPY_THREADS;
Wake();
for (int i = 0; i < MULTIMEMCPY_THREADS; ++i)
{
m_workers[i].dst = (uint8_t *)dst + i * block;
m_workers[i].src = (uint8_t *)src + i * block;
m_workers[i].size = (i + 1) * block - i * block;
if (i == MULTIMEMCPY_THREADS - 1)
m_workers[i].size = size - (block * i);
else
m_workers[i].size = block;
}
INTERLOCKED_OR8(&m_running, (1 << MULTIMEMCPY_THREADS) - 1);
@ -69,6 +77,12 @@ DWORD WINAPI MultiMemcpy::WorkerFunction(LPVOID param)
{
WaitForSingleObject(w->start, INFINITE);
while(!(*w->running & w->id)) {}
if (w->abort)
{
w->abort = false;
INTERLOCKED_AND8(w->running, ~w->id);
continue;
}
memcpySSE(w->dst, w->src, w->size);
INTERLOCKED_AND8(w->running, ~w->id);

21
host/MultiMemcpy.h
View File

@ -22,6 +22,8 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#include <windows.h>
#include <stdint.h>
#include "Util.h"
#pragma once
class MultiMemcpy
{
@ -41,12 +43,29 @@ public:
m_awake = true;
}
// abort a pre-empted copy
inline void Abort()
{
if (!m_awake)
return;
for (int i = 0; i < MULTIMEMCPY_THREADS; ++i)
m_workers[i].abort = true;
INTERLOCKED_OR8(&m_running, (1 << MULTIMEMCPY_THREADS) - 1);
while (m_running) {}
m_awake = false;
}
void Copy(void * dst, void * src, size_t size);
private:
struct Worker
{
unsigned int id;
unsigned int id;
volatile char *running;
bool abort;
HANDLE start;
HANDLE thread;

21
host/Util.h
View File

@ -40,6 +40,27 @@ Place, Suite 330, Boston, MA 02111-1307 USA
class Util
{
public:
static void DebugWinError(const char * file, const unsigned int line, const char * function, const char * desc, HRESULT status)
{
char *buffer;
FormatMessageA(
FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER,
NULL,
status,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(char*)&buffer,
1024,
NULL
);
for(size_t i = strlen(buffer) - 1; i > 0; --i)
if (buffer[i] == '\n' || buffer[i] == '\r')
buffer[i] = 0;
fprintf(stderr, "[E] %20s:%-4u | %-30s | %s: 0x%08x (%s)\n", file, line, function, desc, status, buffer);
LocalFree(buffer);
}
static std::string GetSystemRoot()
{
std::string defaultPath;

16
host/looking-glass-host.vcxproj
View File

@ -165,7 +165,7 @@
<Link>
<SubSystem>Windows</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>kernel32.lib;shlwapi.lib;dxgi.lib;d3d11.lib;setupapi.lib;uuid.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalDependencies>kernel32.lib;shlwapi.lib;dxgi.lib;d3d11.lib;setupapi.lib;uuid.lib;wmcodecdspuuid.lib;mfplat.lib;mfuuid.lib;evr.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
</Link>
<Manifest>
@ -185,7 +185,7 @@
<Link>
<SubSystem>Windows</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>kernel32.lib;shlwapi.lib;dxgi.lib;d3d11.lib;setupapi.lib;uuid.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalDependencies>kernel32.lib;shlwapi.lib;dxgi.lib;d3d11.lib;setupapi.lib;uuid.lib;wmcodecdspuuid.lib;mfplat.lib;mfuuid.lib;evr.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
</Link>
<Manifest>
@ -205,7 +205,7 @@
<Link>
<SubSystem>Windows</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>kernel32.lib;shlwapi.lib;dxgi.lib;d3d11.lib;setupapi.lib;uuid.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalDependencies>kernel32.lib;shlwapi.lib;dxgi.lib;d3d11.lib;setupapi.lib;uuid.lib;wmcodecdspuuid.lib;mfplat.lib;mfuuid.lib;evr.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
</Link>
<Manifest>
@ -225,7 +225,7 @@
<Link>
<SubSystem>Windows</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>kernel32.lib;shlwapi.lib;dxgi.lib;d3d11.lib;setupapi.lib;uuid.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalDependencies>kernel32.lib;shlwapi.lib;dxgi.lib;d3d11.lib;setupapi.lib;uuid.lib;wmcodecdspuuid.lib;mfplat.lib;mfuuid.lib;evr.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
</Link>
<Manifest>
@ -249,7 +249,7 @@
<EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>kernel32.lib;shlwapi.lib;dxgi.lib;d3d11.lib;setupapi.lib;uuid.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalDependencies>kernel32.lib;shlwapi.lib;dxgi.lib;d3d11.lib;setupapi.lib;uuid.lib;wmcodecdspuuid.lib;mfplat.lib;mfuuid.lib;evr.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
</Link>
<Manifest>
@ -273,7 +273,7 @@
<EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>kernel32.lib;shlwapi.lib;dxgi.lib;d3d11.lib;setupapi.lib;uuid.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalDependencies>kernel32.lib;shlwapi.lib;dxgi.lib;d3d11.lib;setupapi.lib;uuid.lib;wmcodecdspuuid.lib;mfplat.lib;mfuuid.lib;evr.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
</Link>
<Manifest>
@ -297,7 +297,7 @@
<EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>kernel32.lib;shlwapi.lib;dxgi.lib;d3d11.lib;setupapi.lib;uuid.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalDependencies>kernel32.lib;shlwapi.lib;dxgi.lib;d3d11.lib;setupapi.lib;uuid.lib;wmcodecdspuuid.lib;mfplat.lib;mfuuid.lib;evr.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
</Link>
<Manifest>
@ -321,7 +321,7 @@
<EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>kernel32.lib;shlwapi.lib;dxgi.lib;d3d11.lib;setupapi.lib;uuid.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalDependencies>kernel32.lib;shlwapi.lib;dxgi.lib;d3d11.lib;setupapi.lib;uuid.lib;wmcodecdspuuid.lib;mfplat.lib;mfuuid.lib;evr.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
</Link>
<Manifest>

1
host/main.cpp
View File

@ -52,6 +52,7 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdParam
{
CrashHandler::Initialize();
TraceUtil::Initialize();
CoInitializeEx(NULL, COINIT_APARTMENTTHREADED | COINIT_DISABLE_OLE1DDE);
SetPriorityClass(GetCurrentProcess(), REALTIME_PRIORITY_CLASS);