greyscale bitmap import by array

[pietroartoni]

Hi,
I am doing a project for visual stimulation in neuroscience. I need to create a 256x1 bitmap (greyscale) starting from an byte array[256] generated by the sketch on the arduino through a sin function. I need to create something to handle like a bitmap (rotation, shrink, etc..) I cannot use data from the SDcard.
Is there any way to import an byte array to a 1-dimensional greyscale bitmap?

thank you in advance

Pietro

[jamesbowman]

Sure, you can set up a bitmap to use the first 256 bytes in video memory:

 GD.BitmapSource(0);
 GD.BitmapSize(NEAREST, BORDER, BORDER, 256, 1);
 GD.BitmapLayout(L8, 256, 1);

Then load the bitmap data from array[] like this:

for (int i = 0; i < 256; i++)
 GD.wr(i, array[i]);
Does this make sense?

[pietroartoni]

It works fine !

Thanks!