Misc: Tolerate zero delta-time under Emscripten. (#6114, #3644)

This commit is contained in:
ocornut
2023-01-25 14:13:12 +01:00
parent fe0a24f38a
commit 07490618ae
2 changed files with 10 additions and 0 deletions

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@ -8852,6 +8852,13 @@ static void ImGui::ErrorCheckNewFrameSanityChecks()
// #define IM_ASSERT(EXPR) do { if (SomeCode(EXPR)) SomeMoreCode(); } while (0) // Correct!
if (true) IM_ASSERT(1); else IM_ASSERT(0);
// Emscripten backends are often imprecise in their submission of DeltaTime. (#6114, #3644)
// Ideally the Emscripten app/backend should aim to fix or smooth this value and avoid feeding zero, but we tolerate it.
#ifdef __EMSCRIPTEN__
if (g.IO.DeltaTime <= 0.0f && g.FrameCount > 0)
g.IO.DeltaTime = 0.00001f;
#endif
// Check user data
// (We pass an error message in the assert expression to make it visible to programmers who are not using a debugger, as most assert handlers display their argument)
IM_ASSERT(g.Initialized);