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| target_synchronous(3) | Arcan Lua API | target_synchronous(3) |
NAME
target_synchronous - Enforce synchronous transfersSYNOPSIS
target_synchronous( dstvid, state )DESCRIPTION
This function is potentially dangerous; there is a tradeoff between responsiveness and reliable readbacks for recordtargets in that if the frameserver isn't ready to receive when a readback from the GPU has been completed, the frame will be discarded. This asynchronous-discard behavior can be altered on a single frameserver by calling target_synchronous. This changes synchronization behavior in that processing will not continue until the frameserver is ready to receive. This means that an untrusted frameserver implementation can potentially livelock the main engine and will introduce additional jitter between rendered frames. If this is performed on a frameserver in decode mode however, the "discard if PTS is too old" behavior will be disabled and the last presented timestamp will be set to the frame that would've otherwise been discared.This behavior can be switched on or off dynamically by setting state to 1/true(default) or 0/false.
SEE ALSO:
| June 2022 | targetcontrol |
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