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Revision 8ebbc730

Added by Leszek Koltunski almost 6 years ago

Port a commit from the master branch.

Finally properly fix the flashing on ARM Mali T880 GPU.

The flashing is caused by a 'full pipeline flush' (see DarkPhoton, https://www.opengl.org/discussion_boards/showthread.php/200754-Flashes-on-ARM-Mali?p=1291679&viewfull=1#post1291679 ). In order to combat it, first introduce the possibility that a single DistortedOutputSurface is backed up by more than one FBO. Then make DistortedScreen be derived from DistortedFramebuffer (which itself is derived from DistortedOutputSurface) and make it contain 3 FBOs, render to them in a circular queue fashion, and blit from a given FBO to the system FBO. The 'more than 1 intermediate FBO' queue prevents the pipeline flush.

Still some TODOs in DistortedFramebuffer remain (properly check for Framebuffer completness!)

View differences:

src/main/java/org/distorted/library/main/DistortedScreen.java
55 55 
  private static MatrixEffectMove mMoveEffect = new MatrixEffectMove( new Static3D(5,5,0) );
56 56 
  ///// END DEBUGGING //////////////////////////
57 57 

  		




  
  58
  
    
  private int mCurrFBO;


  		




  
  59
  
    
  private static final int NUM_FBO = 3;


  		




  
  60
  
    

  		




  58
  61
  
    
///////////////////////////////////////////////////////////////////////////////////////////////////


  		




  59
  62
  
    
// PUBLIC API


  		




  60
  63
  
    
///////////////////////////////////////////////////////////////////////////////////////////////////


  		




  ......




  65
  68
  
    
 */


  		




  66
  69
  
    
  public DistortedScreen()


  		




  67
  70
  
    
    {


  		




  68
  
  
    
    super(1,1,1,BOTH_DEPTH_STENCIL);


  		




  
  71
  
    
    super(NUM_FBO,1,BOTH_DEPTH_STENCIL, TYPE_SYST, 1,1);


  		




  69
  72
  
    
    mShowFPS = false;


  		




  
  73
  
    
    mCurrFBO = 0;


  		




  70
  74
  
    
    }


  		




  71
  75
  
    

  		




  72
  76
  
    
///////////////////////////////////////////////////////////////////////////////////////////////////


  		




  ......




  100
  104
  
    
      lastTime = time;


  		




  101
  105
  
    
      }


  		




  102
  106
  
    

  		




  103
  
  
    
    int numrender = super.render(time);


  		




  
  107
  
    
    int numrender = super.render(time,mCurrFBO);


  		




  104
  108
  
    

  		




  105
  109
  
    
    GLES31.glBindFramebuffer(GLES31.GL_FRAMEBUFFER, 0);


  		




  106
  
  
    
    clear();


  		




  107
  
  
    
    setAsInput();


  		




  
  110
  
    
    setAsInput(mCurrFBO,0);


  		




  108
  111
  
    
    GLES31.glColorMask(true,true,true,true);


  		




  109
  112
  
    
    GLES31.glDepthMask(false);


  		




  110
  113
  
    
    GLES31.glDisable(GLES31.GL_STENCIL_TEST);


  		




  ......




  118
  121
  
    
      fpsEffects.drawPriv(fpsW / 2.0f, fpsH / 2.0f, fpsMesh, this, time, 0);


  		




  119
  122
  
    
      }


  		




  120
  123
  
    

  		




  
  124
  
    
    mCurrFBO++;


  		




  
  125
  
    
    if( mCurrFBO>=NUM_FBO ) mCurrFBO=0;


  		




  
  126
  
    

  		




  121
  127
  
    
    return numrender+1;


  		




  122
  128
  
    
    }


  		




  123
  129
  
    

  		












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