[OLPC-Games] Pygame

Julius B. Lucks julius at younglucks.com
Mon May 14 11:06:50 EDT 2007


What is Zephyr?  SJ was telling me about this mode of development  
with Etoys, and it sounds ideal to set something like that up for  
pygame developers as well.

Julius

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On May 14, 2007, at 10:33 AM, Bert Freudenberg wrote:

> Yes, they explain the Anti-aliasing quite nicely.
>
> It would be way cool if someone would hack Zephyr to scale the
> display. We have this for Squeak/Etoys and it allows you to develop
> using a 1200x900 frame buffer in a window with a physical size that
> matches the XO. Immensely useful.
>
> - Bert -
>
> On May 14, 2007, at 15:56 , Jonathan Blocksom wrote:
>
>> I've found the picturse on the wiki page
>> http://wiki.laptop.org/go/GTK_for_OLPC
>> to be instructive as well.
>>
>> This is something of a FAQ, it would be great if this info were a
>> little more consolidated.
>>
>> On 5/14/07, Bert Freudenberg <bert at freudenbergs.de> wrote:
>>>
>>> On May 14, 2007, at 5:43 , Kent Quirk wrote:
>>>
>>>> Greg Ewing wrote:
>>>>> Bert Freudenberg wrote:
>>>>>> On May 13, 2007, at 6:35 , Kent Quirk wrote:
>>>>>>> The full screen black and white resolution of the XO is
>>>>>>> 1200x900, the color resolution is effectively lower
>>>>>> The frame buffer resolution is fixed at 1200x900, period. Even in
>>>>>> color mode.
>>>>> So what does "effectively lower" mean? Is it something like the
>>>>> Apple ][ where certain pixels could only be certain colours?
>>>> Something like that. Basically, each grayscale pixel lights up a
>>>> single color, so in order to display arbitrary colors, it's
>>>> necessary to blur the image and draw at a lower resolution. But all
>>>> that happens in the hardware.
>>>>
>>>> It's a bit hard to explain the effect, but the best I've seen is on
>>>> wikipedia:
>>>>
>>>> http://en.wikipedia.org/wiki/$100_laptop
>>>
>>> Or try this simulation:
>>>
>>> http://croquetweak.blogspot.com/2007/03/interactive-olpc-xo-display-
>>> simulation.html
>>>
>>> I should update that with the anti-aliasing code I have laying
>>> around ...
>>>
>>> - Bert -
>>>
>
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