Add faster pixels drawing methode

Adds a new method for printing graphic and complex shapes onto the display with python. Works with a byte string containing pixels that is interpreted by epicardium.

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• 8653530c - Fix code style

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• a9518740 - Fix code style

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Looks good to me! Thanks for keeping our codebase clean.

However, I'm only a bot - so a human will still have to approve this request.

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• a9518740...c3c5a5f8 - 139 commits from branch card10:master
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mentioned in issue #182 (closed)

I think this can be replaced with the new Display.blit() function: https://firmware.card10.badge.events.ccc.de/pycardium/display.html#display.Display.blit

The script to convert images might still be interesting though.

Is the new function able to draw images with alpha? I see a mention of an alpha mask, but no example how it works or what type of type is expected.

The image_to_pixels.py script is just a modified Pixelflut renderer. ^^

Alpha is still unsupported by the new function. The parameter in the API is there but it is unused. @Pixtxa mentioned that maybe just a binary alpha mask to draw/not draw a pixel would already be a start.

I've updated the blit function and it now supports RGB data with alpha (Either RGBA8 or RGBA5551): https://firmware.card10.badge.events.ccc.de/pycardium/display.html#display.Display.blit

We now also have support to directly read PNG images (with alpha): https://firmware.card10.badge.events.ccc.de/pycardium/png.html

With that all features of this pr are implemented on other positions and I'm closing it.

closed