Talk:Smedia Glamo 3362

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Blitting with hardware acceleration is only supported in xlib NOT in SDL. The Size of the tiles should be big. I used 128x160 in a 640x480 resolution. Speed tests:

SDL: 32x32 tiles -> 13 FPS 

     128x160 tiles -> 3 FPS


xlib: 32x32 tiles -> 12-13 FPS (300 blits) 

     128x160 tiles -> 35 FPS (15 blits)

You can try it for xlib. Scale bg.png up an down. You will notice the difference. oblit is the SDL blit, xblit is the xlib blit. I think that blitting is accelerated but sending blitting commands takes to much time. So a few big blits (maybe 20 or 30) are better then 300 small ones. Link to source: [1]

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Blitting with hardware acceleration is only supported in xlib NOT in SDL. The Size of the tiles should be big. I used 128x160 in a 640x480 resolution. Speed tests:

SDL: 32x32 tiles -> 13 FPS 

     128x160 tiles -> 3 FPS


xlib: 32x32 tiles -> 12-13 FPS (300 blits) 

     128x160 tiles -> 35 FPS (15 blits)

You can try it for xlib. Scale bg.png up an down. You will notice the difference. oblit is the SDL blit, xblit is the xlib blit. I think that blitting is accelerated but sending blitting commands takes to much time. So a few big blits (maybe 20 or 30) are better then 300 small ones. Link to source: [1]