[PD] GEM: writing an image different from the one displayed

[Matteo Sisti Sette]

Thank you so much Jack and Stéfan

:)

ciao
m.

Jack escribió:
> I have done this patch.
> It works with a [gemwin] with [dimen 800 600( and capture a picture with
> dimen = 1600x1200.
> Hoping it helps.
> ++
> 
> Jack
> 
> 
> 
> Le lundi 16 novembre 2009 à 01:41 +0100, Matteo Sisti Sette a écrit :
>> Hi,
>>
>> I have to modify some patches made by another person.
>>
>> In one of them, [pix_write] is used to save screenshots of the image 
>> being shown in the gemwin.
>>
>> However, the user would like to be able to save a higher quality image, 
>> namely 2000x2000 (so it can be printed).
>> To my knowledge (and to the knowledge of the person who made the patch), 
>> the only way to do this is to increase the resolution of the gemwin. But 
>>   since the resolution of the screen cannot be increased so much, the 
>> complete image cannot be seen.
>> The user wants to be able to still see the whole image (at its usual 
>> resolution of 480x480) while saving screenshots at a higher resolution.
>>
>> So the question is: is it possible to save an image which is not the one 
>> being rendered into the gemwin? So that I can for example generate a big 
>> image, save it, reduce its size, and render the reduced image instead of 
>> the big one?
>>
>> A slow-down due to great cpu consumption at the moment of "capturing" 
>> the image would be acceptable (though not desired, obviously) provided 
>> that it is limited to the moments when the image is captured.
>>
>> Any idea?
>>
>> P.S.: The image is being generared by "tiling" the image from a camera, 
>> i.e. repeating it: that's why it make sense to save the resulting image 
>> in a higher resolution: if the camera has for example a res of 640x480 
>> and it is being repeated in a 5x5 grid, up to 3200x2400 resolution 
>> "makes sense" for the saved image.
>>
>>
>> Thank you very much
>> m.
>>
>>


-- 
Matteo Sisti Sette
matteosistisette at gmail.com
http://www.matteosistisette.com