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[host] nvfbc: add DwmFlush here too as it makes a large difference

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This commit is contained in:
Geoffrey McRae 2022-01-06 19:01:29 +11:00
parent 443f98d2fa
commit b058cbe9fe
1 changed files with 16 additions and 0 deletions
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16
host/platform/Windows/capture/NVFBC/src/nvfbc.c
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@ -33,6 +33,7 @@
#include <stdlib.h>
#include <stdatomic.h>
#include <windows.h>
#include <dwmapi.h>
#include <NvFBC/nvFBC.h>
#include "wrapper.h"
@ -53,6 +54,7 @@ struct iface
NvFBCHandle nvfbc;
bool seperateCursor;
bool dwmFlush;
CaptureGetPointerBuffer getPointerBufferFn;
CapturePostPointerBuffer postPointerBufferFn;
LGThread * pointerThread;
@ -147,6 +149,13 @@ static void nvfbc_initOptions(void)
.type = OPTION_TYPE_INT,
.value.x_int = 0
},
{
.module = "nvfbc",
.name = "dwmFlush",
.description = "Use DwmFlush to sync the capture to the windows presentation inverval",
.type = OPTION_TYPE_BOOL,
.value.x_bool = true
},
{0}
};
@ -163,6 +172,7 @@ static bool nvfbc_create(
this = calloc(1, sizeof(*this));
this->seperateCursor = option_get_bool("nvfbc", "decoupleCursor");
this->dwmFlush = option_get_bool("nvfbc", "dwmFlush" );
this->getPointerBufferFn = getPointerBufferFn;
this->postPointerBufferFn = postPointerBufferFn;
@ -339,6 +349,12 @@ static void nvfbc_free(void)
static CaptureResult nvfbc_capture(void)
{
// this is a bit of a hack as it causes this thread to block until the next
// present keeping us locked with the refresh rate of the monitor being
// captured
if (this->dwmFlush)
DwmFlush();
getDesktopSize(&this->width, &this->height);
NvFBCFrameGrabInfo grabInfo;
CaptureResult result = NvFBCToSysCapture(