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Revision 6672d895

Added by Leszek Koltunski almost 6 years ago

I am pretty sure this time the flashing issues on Mali T880 r12 driver are finally fixed.

The fix: a queue of FBOs render to, just like before, but this time in DistortedScreen we blit not the current FBO, but the one computed several frames ago.

This of course introduces a delay and uses more memory, but it appears to work and does not seem to have any effects on speed.

View differences:

src/main/java/org/distorted/library/main/Distorted.java
82 82 
   * Work around bugs in ARM Mali driver by, instead to a single FBO, rendering to a circular queue
83 83 
   * of FBO_QUEUE_SIZE FBOs. (otherwise we sometimes get a 'full pipeline flush' and the end result
84 84 
   * might be missing part of the Objects)
85 
   *
86 
   * This bug only exists on Mali driver r12. TODO: on other platforms, make this equal to 1.
87 
   *
88 
   * https://community.arm.com/graphics/f/discussions/10285/opengl-es-3-1-on-mali-t880-flashes
85 89 
   */
86 
  public static final int FBO_QUEUE_SIZE = 4;
90 
  public static final int FBO_QUEUE_SIZE = 3;
87 91 

  		




  88
  92
  
    
  private static boolean mInitialized=false;


  		




  89
  93
  
    

  		




  ......




  125
  129
  
    
    final ActivityManager activityManager     = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);


  		




  126
  130
  
    
    final ConfigurationInfo configurationInfo = activityManager.getDeviceConfigurationInfo();


  		




  127
  131
  
    
    android.util.Log.e("DISTORTED", "Using OpenGL ES "+configurationInfo.getGlEsVersion());


  		




  128
  
  
    

  		




  
  132
  
    
    /*


  		




  
  133
  
    
    android.util.Log.e("DISTORTED", "GLSL Version "+GLES31.glGetString(GLES31.GL_SHADING_LANGUAGE_VERSION));


  		




  
  134
  
    
    android.util.Log.e("DISTORTED", "GL Version "  +GLES31.glGetString(GLES31.GL_VERSION));


  		




  
  135
  
    
    android.util.Log.e("DISTORTED", "GL Vendor "   +GLES31.glGetString(GLES31.GL_VENDOR));


  		




  
  136
  
    
    android.util.Log.e("DISTORTED", "GL Renderer " +GLES31.glGetString(GLES31.GL_RENDERER));


  		




  
  137
  
    
    */


  		




  129
  138
  
    
    GLSL = ( (configurationInfo.reqGlEsVersion>>16)>=3 ? 310 : 100 );


  		




  130
  139
  
    
    GLSL_VERSION= (GLSL==100 ? "#version 100\n" : "#version 310 es\n");


  		




  131
  140
  
    

  		












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