Raw pixel performance version 1.11 to 1.35 slowdown?

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Snarty

Personally I never use a canvas for reading/writing direct to. I only use SysRam images for that. It's far quicker. Try your example with the main write loop as this. (in both versions).

I would be interested to know the results.

; Process the event... 
If e = EVENT_MOUSEDOWN Then 

	SetBuffer ImageBuffer (ibuffer) 
	LockBuffer ImageBuffer(ibuffer) 
	
	startTime = MilliSecs() 
	
	For count = 0 To 100 
		For y = 0 To IMAGE_HEIGHT 
			For x = 0 To IMAGE_WIDTH 
				rrgb = ReadPixelFast(x,y) 
				WritePixelFast x,y,rrgb 
			Next 
		Next 
	Next 
	
	UnlockBuffer ImageBuffer(ibuffer) 
	SetBuffer CanvasBuffer(canvas)
	DrawBlock iBuffer,0,0
	
	endTime = MilliSecs() 
	Print endTime - startTime 
	
	FlipCanvas (canvas) 
EndIf 
If e = EVENT_CLOSE Then End