Ticket #336 (defect)

I played around with the blit parameters and found a weird behaviour. If you work with aimage (surface) bigger than 512 pixel the PSP will crash. You even dont need to blit that big image directly to the screen. It also will crash if you cut a part out that image and try to blit it on the screen:

screen = psp2d.Screen() python = psp2d.Image('python.png') # Lets say the image has a size of 50*50 pixel big_img = psp2d.Image(520,272) # Create surface bigger than 512 pixel big_img.blit(python,0,0,-1,-1,0,0,True) # Copy the small image (python.png) into the big image screen.blit(big_img,0,0,50,50,-1,-1,True) # PSP2D doesnt like that -> crash screen.swap()

Altough only 50 pixel are copied out of the big image for blitting them onto the screen it still crashes. What I expected, based on the code, the image python should be displayed at pos 0,0 on the screen. If you change the widh of big_img to 512 pixel it works fine (no crash on PSP). Together with this I found out that any image bigger than 512 pixel blitted on the PSP screen or any image positioned in a way that 512 pixel are exceeded the PSP will crash. (No idea yet what the y-range or negative x/y limit range is to make PSP crash that way). You need to try this example out of the PSP because it works fine on the PC PSP2 Dev kits. Regards Tyger