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Better frame rate / time display

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Calculate and update every 500ms which makes it much more readable
This commit is contained in:
Bim Overbohm 2013-05-29 20:22:02 +02:00
parent cfee178f2f
commit c8bf0cf652
1 changed files with 17 additions and 6 deletions

23
src/main.cpp
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@ -2,6 +2,7 @@
#include <SDL.h> #include <SDL.h>
#include <iostream> #include <iostream>
#include <iomanip>
#include "Renderer.h" #include "Renderer.h"
#include "components/GuiGameList.h" #include "components/GuiGameList.h"
#include "SystemData.h" #include "SystemData.h"
@ -198,12 +199,22 @@ int main(int argc, char* argv[])
if(DRAWFRAMERATE) if(DRAWFRAMERATE)
{ {
float framerate = 1/((float)deltaTime)*1000; static int timeElapsed = 0;
std::stringstream ss; static int nrOfFrames = 0;
ss << framerate; static std::string fpsString;
std::string fps;
ss >> fps; nrOfFrames++;
Renderer::drawText(fps, 50, 50, 0x00FF00FF, Renderer::getDefaultFont(Renderer::MEDIUM)); timeElapsed += deltaTime;
//wait until half a second has passed to recalculate fps
if (timeElapsed >= 500) {
std::stringstream ss;
ss << std::fixed << std::setprecision(1) << (1000.0f * (float)nrOfFrames / (float)timeElapsed) << "fps, ";
ss << std::fixed << std::setprecision(2) << ((float)timeElapsed / (float)nrOfFrames) << "ms";
fpsString = ss.str();
nrOfFrames = 0;
timeElapsed = 0;
}
Renderer::drawText(fpsString, 50, 50, 0x00FF00FF, Renderer::getDefaultFont(Renderer::MEDIUM));
} }
//sleep if we're past our threshold //sleep if we're past our threshold