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st/oxr: Slightly improve swapchain image status

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The current code is not up spec at all anyways, but this at least
helps to avoid some bad situations in the current code.
This commit is contained in:
Jakob Bornecrantz 2019-06-28 16:03:31 +01:00
parent 79364eaf4c
commit 97939accda
1 changed files with 9 additions and 0 deletions
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9
src/xrt/state_trackers/oxr/oxr_swapchain.c
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@ -38,6 +38,13 @@ oxr_swapchain_acquire_image(struct oxr_logger *log,
}
sc->acquired_index = (int)index;
// If the compositor is resuing the image,
// mark it as invalid to use in xrEndFrame.
if (sc->released_index == (int)index) {
sc->released_index = -1;
}
*out_index = index;
return XR_SUCCESS;
@ -78,6 +85,8 @@ oxr_swapchain_release_image(struct oxr_logger *log,
return oxr_error(log, XR_ERROR_RUNTIME_FAILURE,
" call to xsc->release_image failed");
}
// Overwrite the old released image, with new.
sc->released_index = sc->acquired_index;
sc->acquired_index = -1;