diff options
Diffstat (limited to 'pugl/detail/mac.m')
| -rw-r--r-- | pugl/detail/mac.m | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/pugl/detail/mac.m b/pugl/detail/mac.m index 0c50d20..64590c6 100644 --- a/pugl/detail/mac.m +++ b/pugl/detail/mac.m @@ -880,6 +880,26 @@ puglRealize(PuglView* view) view->hints[PUGL_ALPHA_BITS] = 8; } + CGDirectDisplayID displayId = CGMainDisplayID(); + CGDisplayModeRef mode = CGDisplayCopyDisplayMode(displayId); + + // Try to get refresh rate from mode (usually fails) + view->hints[PUGL_REFRESH_RATE] = (int)CGDisplayModeGetRefreshRate(mode); + + CGDisplayModeRelease(mode); + if (view->hints[PUGL_REFRESH_RATE] == 0) { + // Get refresh rate from a display link + // TODO: Keep and actually use the display link for something? + CVDisplayLinkRef link; + CVDisplayLinkCreateWithCGDisplay(displayId, &link); + + const CVTime p = CVDisplayLinkGetNominalOutputVideoRefreshPeriod(link); + const double r = p.timeScale / (double)p.timeValue; + view->hints[PUGL_REFRESH_RATE] = (int)lrint(r); + + CVDisplayLinkRelease(link); + } + if (view->frame.width == 0.0 && view->frame.height == 0.0) { if (view->defaultWidth == 0.0 && view->defaultHeight == 0.0) { return PUGL_BAD_CONFIGURATION; |