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

[Jack]

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.
> 
> 
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