Framerate issue when resolution = screen size

[eljeffeg]

If you set the size of the sketch to the exact size of the screen, it decreased the framerate to 30fps. If I change it by 1 pixel it is back to normal. Also, the OpenGL command "gl.setSwapInterval(1);" seems to have no effect.

Runs at 30fps

size(int(screen.width), int(screen.height), OPENGL );

Runs at 500fps

size(int(screen.width), int(screen.height)-1, OPENGL );

Runs at 500fps

size(int(screen.width)-1, int(screen.height), OPENGL );

Any size that is not the exact resolution of the screen. So something is going on here when the size is equal.

Example sketch:

import fullscreen.*; 
import processing.opengl.*;
import javax.media.opengl.GL;
PGraphicsOpenGL pgl;
GL gl;
FullScreen fs;

void setup(){
  size((int)screen.width, (int)screen.height, OPENGL);
  fs = new FullScreen(this);
  fs.enter(); 
  pgl         = (PGraphicsOpenGL) g;
  gl          = pgl.gl;
  frameRate(2000);
}

void draw(){
  background(0);
  fill(255);
  ellipse(150,150,150,150);
  println(frameRate);
}

[kritzikratzi]

Wow, somehow I completely missed that one. One thing I noticed: When you use SoftFullScreen instead of FullScreen mode and bring another application to the foreground, the sketch runs at full speed. This might be the oddest thing I've ever seen...

[kritzikratzi]

Okay, this really seems to be a macos+java+opengl issue. Try this sketch in present-mode (apple+shift+r): import processing.opengl.*; import javax.media.opengl.GL;

void setup(){ size(screen.width, screen.height, OPENGL); frameRate(2000); }

void draw(){ noStroke(); fill( 0, 5 ); rect( 0, 0, width, height ); stroke(0, 255, 0); line(0, frameCount%height, width, frameCount%height ); println( frameRate ); }

it also runs just at 30fps on my computer. The profiler tell's me that 93% of all time is wasted in com.sun.opengl.impl.macosx.CGL.flushBuffer(long), but I have no idea how to fix this...

[kritzikratzi]

Seems to be a java+opengl issue, try this:

import processing.opengl.*;

void setup(){ size((int)screen.width, (int)screen.height, OPENGL); frameRate(2000); }

void draw(){ background(0); fill(255); ellipse(150,150,150,150); println(frameRate); }

in present mode, it will also just run at 30fps

[eljeffeg]

Yes, in both the sketches you posted. The frame rate dropped to 30fps.

[kritzikratzi]

sorry, i double-posted because my first post didn't show up instantly for some reason. anyway, i forwarded the report to processing.org: http://dev.processing.org/bugs/show_bug.cgi?id=1425

This bug here propably won't close until the processing people fix it...

[kritzikratzi]

Okay, the problem is definitely fixable in processing, but there's still some work left to do for me...

It's fixed for the fullscreen-exclusive mode and you can download the temporary fixed library here if you want: http://cloud.github.com/downloads/kritzikratzi/fullscreen-p5/fullscreen-0.98.4-testing.zip

however, softfullscreen mode (which is imho much much more important) still has the same flaws...

[kritzikratzi]

i'm scared to close this one, but my unit tests ran fine a couple of times.

[eljeffeg]

Ran fine for me too.