I haven't had any issues with hardware acceleration using porter duff, at 
least not under the circumstances i had to use it in.

just try it and see how it goes.

On Monday, November 12, 2012 1:06:04 PM UTC+2, Simon Giddings wrote:
>
> Thank you for this.
> One thing I am not clear with is the problem with hardware acceleration.
> Some people say that this will not work with hardware acceleration ON, 
> whilst others say that this is precisely what is needed when it is ON.
>
> Is there some definitive answer for this aspect ?
>
> On Monday, 12 November 2012 11:58:07 UTC+1, Piren wrote:
>>
>>
>> http://stackoverflow.com/questions/11337679/porterduffxfermode-clear-a-section-of-a-bitmap
>>
>> On Monday, November 12, 2012 12:16:17 PM UTC+2, Simon Giddings wrote:
>>>
>>> I am needing to draw shapes which will have hollow regions.
>>> To simplify the idea, take an ampersand sign : &
>>> This is just to illustrate the kind of task I need to do.
>>>
>>> I can create the outline by using a path.
>>> However, I have not been able to see how to create the two "holes" such 
>>> that when the paths are painted, they will appear as ... holes.
>>>
>>> Can anyone guide me with this one ?
>>>
>>

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