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Display average frametime & FPS over n frames

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This commit is contained in:
Timmy Sjöstedt 2015-04-05 20:06:15 +02:00
parent 861f36bdde
commit 7838f75947
1 changed files with 15 additions and 0 deletions
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15
rwgame/RWGame.cpp
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@ -446,8 +446,23 @@ void RWGame::render(float alpha, float time)
void RWGame::renderDebugStats(float time)
{
constexpr size_t average_every_frame = 15;
static float times[average_every_frame];
static size_t times_index = 0;
static float time_average = 0;
times[times_index++] = time;
if (times_index >= average_every_frame) {
times_index = 0;
for (int i = 0; i < average_every_frame; ++i) {
time_average += times[i];
}
time_average /= average_every_frame;
}
std::stringstream ss;
ss << "Frametime: " << time << " (FPS " << (1.f/time) << ")\n";
ss << "Average (per " << average_every_frame << " frames); Frametime: " << time_average << " (FPS " << (1.f/time_average) << ")\n";
ss << "Draws: " << lastDraws << " (" << renderer->culled << " Culls)\n";
// Count the number of interesting objects.