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Calculate frame-rate for the user, as a purely luxurious feature

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..and to reduce sample code size a little.
This commit is contained in:
ocornut
2015-02-11 18:28:17 +00:00
parent d65e051a07
commit cb0a4db048
6 changed files with 16 additions and 44 deletions
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11
imgui.cpp
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@ -1022,6 +1022,11 @@ struct ImGuiState
int LogStartDepth;
int LogAutoExpandMaxDepth;
// Misc
float FramerateSecPerFrame[120]; // calculate estimate of framerate for user
int FramerateSecPerFrameIdx;
float FramerateSecPerFrameAccum;
ImGuiState()
{
Initialized = false;
@ -1719,6 +1724,12 @@ void ImGui::NewFrame()
for (size_t i = 0; i < IM_ARRAYSIZE(g.IO.KeysDown); i++)
g.IO.KeysDownTime[i] = g.IO.KeysDown[i] ? (g.IO.KeysDownTime[i] < 0.0f ? 0.0f : g.IO.KeysDownTime[i] + g.IO.DeltaTime) : -1.0f;
// Calculate frame-rate for the user, as a purely luxurious feature
g.FramerateSecPerFrameAccum += g.IO.DeltaTime - g.FramerateSecPerFrame[g.FramerateSecPerFrameIdx];
g.FramerateSecPerFrame[g.FramerateSecPerFrameIdx] = g.IO.DeltaTime;
g.FramerateSecPerFrameIdx = (g.FramerateSecPerFrameIdx + 1) % IM_ARRAYSIZE(g.FramerateSecPerFrame);
g.IO.Framerate = 1.0f / (g.FramerateSecPerFrameAccum / (float)IM_ARRAYSIZE(g.FramerateSecPerFrame));
// Clear reference to active widget if the widget isn't alive anymore
g.HoveredId = 0;
if (!g.ActiveIdIsAlive && g.ActiveIdPreviousFrame == g.ActiveId && g.ActiveId != 0)