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AM3517: How to improve the perfomance for Qt 2D and PowerVR 3D

Kanae
Guru 10085 points
Other Parts Discussed in Thread: AM3517

Hi.
My customer has AM3517EVM with the latest SDK for AM3517
and refers this site; Building Qt with OpenGL ES accelerated by SGX.
http://processors.wiki.ti.com/index.php/Building_Qt_with_OpenGL_ES_accelerated_by_SGX

They would like to improve the perfomance for Qt 2D and PowerVR 3D,
because the output image combined PowerVR:3D and Qt: 2D including
animations is flickering as attached AVI file.
 2816.qt_powerVR.AVI

I'm not familiar with this issue however my customer really needs to know
how to improve it ASAP.

My customer's powervr.ini and output of the gfx_check.sh script are here.
7043.gfx_check.txt

powervr.ini
-----------------------------------------------------------
[default]
#WindowSystem=libpvrPVR2D_FRONTWSEGL.so
#WindowSystem=libpvrPVR2D_FLIPWSEGL.so
#WindowSystem=libpvrQWSWSEGL.so
WindowSystem=libpvrPVR2D_BLITWSEGL.so

ParamBufferSize=33554432
-----------------------------------------------------------


Any suggestions or info of the divice limitation would be appreciated.
Regards,
Kanae

								


				
				

				
			

		

			
						
									
                			    			                        
						
						
			
			
						
			                        
			
			
				
			  
			

			     
			

		


				    			

						
















	

	

					
    
	
    





		
	
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                          TI__Expert
                        6580 points
                      
    
                          
                   		
		
    
					
    For Qt/e to work with SGX as backend (ie, -display powervr), the powervr.ini is not correct - refer to below link for the correct setting.
    

    

    http://processors.wiki.ti.com/index.php/SGXDbg#WindowSystem
    

    

    - Need an explanation of what Qt widget is used to draw the screen, and how the 3D and 2D are merged.
    

    
			
    

		
		
		
		
	
    
	
    
		
    
			
		
    
	
    

	            
                 	
	
    
				
		                
                
                
                
                
                
                
        		
		
				
    
			
		
    
		
		 
		
		
     
    
	
    

    
			
    
			
    
		
    

		
    
	
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