steam-frame/saphid--frame-control
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OpenXR compat layer: keep the current refresh rate when SteamVR refuses a request

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Quest apps ask for 72/90/120/144 Hz; SteamVR offers only the current rate and
Wolvic aborted on XR_ERROR_DISPLAY_REFRESH_RATE_UNSUPPORTED_FB. Verified on
the Frame: Wolvic's Quest build now reaches XR_SESSION_STATE_SYNCHRONIZED.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
This commit is contained in:
saphidandClaude Opus 5.5 committed 2026-09-28 16:29:06 +10:00
1 parent 0dbe18d824
commit 8d75ede0ab
3 files changed
+15 -1
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frame/openxr-compat/layer.cpp
+14
View File
@@ -21,6 +21,7 @@ struct Dispatch {
PFN_xrPathToString pathToString{};
PFN_xrSuggestInteractionProfileBindings suggest{};
PFN_xrSetAndroidApplicationThreadKHR thread{};
PFN_xrRequestDisplayRefreshRateFB refresh{};
frame::Names enabled, stubbed;
XrInstance instance{};
bool promote{}, palm{};
@@ -131,6 +132,17 @@ XrResult XRAPI_CALL threadSettings(XrSession s, XrAndroidThreadTypeKHR type, uin
}
return d->thread ? d->thread(s, type, tid) : XR_ERROR_FUNCTION_UNSUPPORTED;
} GUARD_END
// SteamVR offers only the current refresh rate; Quest apps ask for 72/90/120 Hz
// and abort on the error, so keep the current rate and report success.
XrResult XRAPI_CALL requestRefreshRate(XrSession s, float hz) try {
auto d = get(s); if (!d) return XR_ERROR_HANDLE_INVALID;
auto r = d->refresh(s, hz);
if (r == XR_ERROR_DISPLAY_REFRESH_RATE_UNSUPPORTED_FB) {
LOG("xrRequestDisplayRefreshRateFB %.1f Hz unsupported; keeping the current rate", hz);
return XR_SUCCESS;
}
return r;
} GUARD_END
XrResult XRAPI_CALL stringToPath(XrInstance i, const char* path, XrPath* out) try {
auto d = get(i); if (!d) return XR_ERROR_HANDLE_INVALID;
if (!path) return XR_ERROR_VALIDATION_FAILURE;
@@ -224,6 +236,7 @@ XrResult XRAPI_CALL createLayer(const XrInstanceCreateInfo* info, const XrApiLay
LOAD(suggest, xrSuggestInteractionProfileBindings);
if (frame::has(d->enabled, "XR_KHR_locate_spaces")) LOAD(locate, xrLocateSpacesKHR);
if (frame::has(d->enabled, frame::stubs[0])) LOAD(thread, xrSetAndroidApplicationThreadKHR);
if (frame::has(d->enabled, "XR_FB_display_refresh_rate")) LOAD(refresh, xrRequestDisplayRefreshRateFB);
#undef LOAD
if (!d->createSession || !d->destroySession || !d->stringToPath || !d->pathToString || !d->suggest) {
d->destroy(*instance); *instance = XR_NULL_HANDLE; return XR_ERROR_INITIALIZATION_FAILED;
@@ -249,6 +262,7 @@ XrResult XRAPI_CALL gipa(XrInstance i, const char* name, PFN_xrVoidFunction* out
RETURN_PROC("xrSuggestInteractionProfileBindings", suggest)
if (d->locate && d->promote) { RETURN_PROC("xrLocateSpaces", locateSpaces) }
if (frame::has(d->stubbed, frame::stubs[0])) { RETURN_PROC("xrSetAndroidApplicationThreadKHR", threadSettings) }
if (d->refresh) { RETURN_PROC("xrRequestDisplayRefreshRateFB", requestRefreshRate) }
#undef RETURN_PROC
// Includes xrGetInstanceProperties: report the actual runtime's identity.
return d->gipa(i, name, out);