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Code Issues Releases Activity

Don't sleep in FramerateManager::framerateDelay() if VSync is enabled

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This commit is contained in:
Alexander Wilms
2023-09-26 17:28:44 +02:00
parent 23d1638d70
commit bfa5ef7990
2 changed files with 13 additions and 5 deletions
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8
client/gui/FramerateManager.cpp
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@@ -11,22 +11,28 @@
#include "StdInc.h" #include "StdInc.h"
#include "FramerateManager.h" #include "FramerateManager.h"
#include "../../lib/CConfigHandler.h"
FramerateManager::FramerateManager(int targetFrameRate) FramerateManager::FramerateManager(int targetFrameRate)
: targetFrameTime(Duration(boost::chrono::seconds(1)) / targetFrameRate) : targetFrameTime(Duration(boost::chrono::seconds(1)) / targetFrameRate)
, lastFrameIndex(0) , lastFrameIndex(0)
, lastFrameTimes({}) , lastFrameTimes({})
, lastTimePoint (Clock::now()) , lastTimePoint(Clock::now())
, vsyncEnabled(settings["video"]["vsync"].Bool())
{ {
boost::range::fill(lastFrameTimes, targetFrameTime); boost::range::fill(lastFrameTimes, targetFrameTime);
} }
void FramerateManager::framerateDelay() void FramerateManager::framerateDelay()
{ {
if(!vsyncEnabled)
{
Duration timeSpentBusy = Clock::now() - lastTimePoint; Duration timeSpentBusy = Clock::now() - lastTimePoint;
// FPS is higher than it should be, then wait some time // FPS is higher than it should be, then wait some time
if(timeSpentBusy < targetFrameTime) if(timeSpentBusy < targetFrameTime)
boost::this_thread::sleep_for(targetFrameTime - timeSpentBusy); boost::this_thread::sleep_for(targetFrameTime - timeSpentBusy);
}
// compute actual timeElapsed taking into account actual sleep interval // compute actual timeElapsed taking into account actual sleep interval
// limit it to 100 ms to avoid breaking animation in case of huge lag (e.g. triggered breakpoint) // limit it to 100 ms to avoid breaking animation in case of huge lag (e.g. triggered breakpoint)

2
client/gui/FramerateManager.h
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@@ -25,6 +25,8 @@ class FramerateManager
/// index of last measured frome in lastFrameTimes array /// index of last measured frome in lastFrameTimes array
ui32 lastFrameIndex; ui32 lastFrameIndex;
bool vsyncEnabled;
public: public:
FramerateManager(int targetFramerate); FramerateManager(int targetFramerate);