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I wrote a code to update 15320 pixels on phone display.

Every 100 ms the application will iterates 15320 times to calculate each of the pixel values, then iterates 15320 times to replace each pixel in IDIB interface. finally I use Idisplay_bltbit to update DIB to screen BMP

the application could run at a speed of 16fps on Samaung109 but the performance was very poor on most other phones such like LG8380, LG8188, etc.

Can any one tell me how to spped up?