Fix background idle animation on iOS when task switching

hrydgard · Dec 15, 2020 · ccb616c · ccb616c
1 parent 70d2469
commit ccb616c
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/UI/MiscScreens.cpp b/UI/MiscScreens.cpp
@@ -126,7 +126,15 @@ void DrawBackground(UIContext &dc, float alpha) {
  ui_draw2d.DrawImageStretch(img, dc.GetBounds(), bgColor);
  }
 
+#if PPSSPP_PLATFORM(IOS)
+ // iOS uses an old screenshot when restoring the task, so to avoid an ugly
+ // jitter we accumulate time instead.
+ static int frameCount = 0.0;
+ frameCount++;
+ double t = (double)frameCount / 60.0;
+#else
  double t = time_now_d();
+#endif
  for (int i = 0; i < 100; i++) {
  float x = xbase[i] + dc.GetBounds().x;
  float y = ybase[i] + dc.GetBounds().y + 40 * cosf(i * 7.2f + t * 1.3f);