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[host] DXGI capture improvements

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This commit is contained in:
Geoffrey McRae
2018-09-26 21:20:17 +10:00
parent e70928d603
commit 3cd152c9d5
3 changed files with 41 additions and 11 deletions
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18
host/Service.cpp
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@@ -51,6 +51,7 @@ bool Service::Initialize(ICapture * captureDevice)
if (m_initialized)
DeInitialize();
m_tryTarget = 0;
m_capture = captureDevice;
if (!m_ivshmem->Initialize())
{
@@ -171,6 +172,7 @@ bool Service::Process()
return false;
volatile uint8_t *flags = &m_shmHeader->flags;
int tryCount = 0;
// wait for the host to notify that is it is ready to proceed
while (true)
@@ -187,7 +189,7 @@ bool Service::Process()
if (m_capture->GetMaxFrameSize() > m_frameSize)
{
DEBUG_ERROR("Maximum frame size of %zd bytes excceds maximum space available", m_capture->GetMaxFrameSize());
DEBUG_ERROR("Maximum frame size of %zd bytes exceeds maximum space available", m_capture->GetMaxFrameSize());
return false;
}
@@ -199,10 +201,20 @@ bool Service::Process()
if (!(m_shmHeader->frame.flags & KVMFR_FRAME_FLAG_UPDATE))
break;
// wait for 2ms before polling again
Sleep(2);
// save CPU if the client has stopped polling for updates
if (++tryCount > m_tryTarget * 400)
{
m_tryTarget = 250;
Sleep(100);
}
}
int diff = (tryCount - m_lastTryCount) / 200;
m_lastTryCount = tryCount;
m_tryTarget += diff;
if (m_tryTarget < 250)
m_tryTarget = 250;
struct FrameInfo frame = {0};
struct CursorInfo cursor = {0};
frame.buffer = m_frame[m_frameIndex];