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[host] improve capture performance

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Contrary to the MS documentation, benchmarking shows a substantial
increase in performance when releasing the captured frame as soon
as possible. This change makes it possible to achieve 60FPS at 4K
resolutions.
This commit is contained in:
Geoffrey McRae
2018-05-31 18:51:28 +10:00
parent 3f331f2e62
commit d4c41d2d94
3 changed files with 42 additions and 35 deletions
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16
host/Service.cpp
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@@ -157,6 +157,10 @@ void Service::DeInitialize()
m_cursorDataSize = 0;
m_frameSize = 0;
WaitForSingleObject(m_cursorThread, INFINITE);
CloseHandle(m_cursorThread);
CloseHandle(m_cursorEvent);
m_ivshmem->DeInitialize();
if (m_capture)
@@ -165,10 +169,6 @@ void Service::DeInitialize()
m_capture = NULL;
}
WaitForSingleObject(m_cursorThread, INFINITE);
CloseHandle(m_cursorThread);
CloseHandle(m_cursorEvent );
m_memory = NULL;
m_initialized = false;
}
@@ -213,10 +213,8 @@ bool Service::Process()
Sleep(2);
}
struct FrameInfo frame;
struct CursorInfo cursor;
ZeroMemory(&frame , sizeof(struct FrameInfo ));
ZeroMemory(&cursor, sizeof(struct CursorInfo));
struct FrameInfo frame = {0};
struct CursorInfo cursor = {0};
frame.buffer = m_frame[m_frameIndex];
frame.bufferSize = m_frameSize;
@@ -323,8 +321,6 @@ bool Service::Process()
// update the flags
INTERLOCKED_AND8((volatile char *)flags, KVMFR_HEADER_FLAG_RESTART);
// _mm_sfence();
return true;
}