Mirrored_Repos/LookingGlass
1
0
Fork 0
mirror of https://github.com/gnif/LookingGlass.git synced 2024-12-23 05:53:40 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

[host] made DXGI ReInitialization more robust on mode changes

Browse Source 
DXGI doesn't like to restart too fast, com exceptions are logged and the
duplication device fails to create with an E_ACCESS_DENIED error. Adding
a 200ms sleep between teardown and re-init resolves this issue.
This commit is contained in:
Geoffrey McRae 2017-11-04 04:00:00 +11:00
parent 32d61023e5
commit 9287ec97eb
2 changed files with 46 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

64
host/Capture/DXGI.cpp
View File

@ -118,22 +118,23 @@ bool DXGI::Initialize()
);
adapter.Release();
if (FAILED(status))
if (FAILED(status) || !m_device)
{
DEBUG_ERROR("Failed to create D3D11 device");
DeInitialize();
return false;
}
CComQIPtr<IDXGIDevice1> device1 = m_device;
if (!device1)
// we try this twice just incase we still get an error
// on re-initialization
for(int i = 0; i < 2; ++i)
{
DEBUG_ERROR("Failed to get IDXGIDevice1");
DeInitialize();
return false;
status = m_output->DuplicateOutput(m_device, &m_dup);
if (SUCCEEDED(status))
break;
Sleep(200);
}
status = m_output->DuplicateOutput(m_device, &m_dup);
if (FAILED(status))
{
DEBUG_ERROR("DuplicateOutput Failed: %08x", status);
@ -181,6 +182,7 @@ void DXGI::DeInitialize()
{
delete[] m_pointer;
m_pointer = NULL;
m_pointerBufSize = 0;
}
if (m_texture)
@ -204,6 +206,19 @@ void DXGI::DeInitialize()
m_initialized = false;
}
bool DXGI::ReInitialize()
{
DeInitialize();
/*
DXGI needs some time when mode switches occur, failing to do so causes
failure to start and exceptions internal to DXGI
*/
Sleep(200);
return Initialize();
}
FrameType DXGI::GetFrameType()
{
if (!m_initialized)
@ -230,6 +245,9 @@ size_t DXGI::GetMaxFrameSize()
bool DXGI::GrabFrame(FrameInfo & frame)
{
if (!m_initialized)
return false;
DXGI_OUTDUPL_FRAME_INFO frameInfo;
CComPtr<IDXGIResource> res;
@ -239,27 +257,31 @@ bool DXGI::GrabFrame(FrameInfo & frame)
status = m_dup->AcquireNextFrame(INFINITE, &frameInfo, &res);
if (SUCCEEDED(status))
break;
// desktop switch, mode change or switch DWM on or off
if (status == DXGI_ERROR_ACCESS_LOST)
{
DeInitialize();
if (!Initialize())
switch (status)
{
case DXGI_ERROR_ACCESS_LOST: // desktop switch, mode change or switch DWM on or off
case WAIT_ABANDONED: // this can happen also during desktop switches, not documented by MS though
{
DEBUG_ERROR("Failed to re-initialize after access was lost");
return false;
if (!ReInitialize())
{
DEBUG_ERROR("Failed to re-initialize after access was lost");
return false;
}
continue;
}
continue;
}
// unknown failure
DEBUG_INFO("AcquireNextFrame failed: %08x", status);
return false;
default:
// unknown failure
DEBUG_INFO("AcquireNextFrame failed: %08x", status);
return false;
}
}
// retry count exceeded
if (FAILED(status))
{
m_dup->ReleaseFrame();
DEBUG_ERROR("Failed to acquire next frame");
return false;
}
@ -267,6 +289,7 @@ bool DXGI::GrabFrame(FrameInfo & frame)
CComQIPtr<ID3D11Texture2D> src = res;
if (!src)
{
m_dup->ReleaseFrame();
DEBUG_ERROR("Failed to get src ID3D11Texture2D");
return false;
}
@ -290,6 +313,7 @@ bool DXGI::GrabFrame(FrameInfo & frame)
status = m_dup->GetFramePointerShape(m_pointerBufSize, m_pointer, &m_pointerSize, &m_shapeInfo);
if (!SUCCEEDED(status))
{
m_dup->ReleaseFrame();
DEBUG_ERROR("Failed to get the new pointer shape: %08x", status);
return false;
}

2
host/Capture/DXGI.h
View File

@ -42,6 +42,8 @@ namespace Capture
bool GrabFrame(struct FrameInfo & frame);
private:
bool ReInitialize();
bool m_initialized;
MTMemcpy m_memcpy;
unsigned int m_width;