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Re^2: image sizes (not local)

by sulfericacid (Deacon)
on Jun 25, 2006 at 18:23 UTC ( #557460=note: print w/replies, xml ) Need Help??


in reply to Re: image sizes (not local)
in thread image sizes (not local)

Just out of curiousity I used your snippet but I can't get it to work. Are you sure you can get() and image and determine it's size without first storing it?


"Age is nothing more than an inaccurate number bestowed upon us at birth as just another means for others to judge and classify us"

sulfericacid

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Re^3: image sizes (not local)
by ikegami (Pope) on Jun 26, 2006 at 05:24 UTC

    I used your snippet but I can't get it to work.

    The problem is with line 43b.

    Are you sure you can get() and image and determine it's size without first storing it?

    Quote Image::Size 3.0: "If the passed-in stream is a scalar reference, it is interpreted as pointing to an in-memory buffer containing the image data."

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[stevieb]: well, what happens is the Arduino 'listens' for requests r/w, and does the appropriate thing when it's interrupted based on the 'register' address sent in. It's ugly as it was my first attempt, but I've got great new ideas I'm just sitting.
[stevieb]: ...down to implement now. Here's the sketch as it currently sits
[shmem]: well I use I2C and SPI and stuff, but creating a pseudo chip looks to me like lot of indirection and memory clutter... not?
[choroba]: Are you going to use the device soon? Related to your comment about "not having much time to do a lot of coding"...
[stevieb]: sure, but I'm just learning ;) I consider it practice to get a good understanding of what goes on *after* an I2C/SPI request is made
[shmem]: ah ok. Gonna read that. but now....
shmem compiles himself into his template
[stevieb]: this is my RPi:: distribution overall automation build system physical layout. It doesn't encompass all of my RPi dists yet, ...
[stevieb]: ...but I'm getting close. I've been soldering my own PCBs to gain that experience as well, before I have my own manufactured.
[stevieb]: heh, nice *template* ;) 'night shmem!

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