CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=4.1.0-beta.0 2019-06-12T18:36:43+00:00 2019-06-12T18:36:43+00:00 Scott Shawcroft scott@tannewt.org 2019-06-12T08:00:59+00:00 urn:sha1:a35d9b469d4ed65fd992771aa98ac57241983794 2019-06-12T18:32:39+00:00 Scott Shawcroft scott@tannewt.org 2019-06-06T22:11:02+00:00 urn:sha1:eb21fc3e31790cee094d5c11811b55a57625340a Different operations to the display tree have different costs. Be aware of these costs when optimizing your code. * Changing tiles indices in a TileGrid will update an area covering them all. * Changing a palette will refresh every object that references it. * Moving a TileGrid will update both where it was and where it moved to. * Adding something to a Group will refresh each individual area it covers. * Removing things from a Group will refresh one area that covers all previous locations. (Not separate areas like add.) * Setting a new top level Group will refresh the entire display. Only TileGrid moves are optimized for overlap. All other overlaps cause sending of duplicate pixels. This also adds flip_x, flip_y and transpose_xy to TileGrid. They change the direction of the pixels but not the location. Fixes #1169. Fixes #1705. Fixes #1923. 2019-05-22T00:41:06+00:00 Scott Shawcroft scott@tannewt.org 2019-05-16T23:45:38+00:00 urn:sha1:3fad7de8db7f1f317ab6d00a00a82e406ec6fb33 This changes the displayio pixel computation from per-pixel to per-area. This is precursor work to updating portions of the screen (#1169). It should provide mild speedups because bounds checks are done once per area rather than once per pixel. Filling by area also allows TileGrid to maintain a row-associative fill pattern even when the display's refresh is orthogonal to it. 2019-03-13T00:17:32+00:00 Scott Shawcroft scott@tannewt.org 2019-03-12T21:39:46+00:00 urn:sha1:ea45877ca52c1f3d8e5f0e8547ffdcb982090ff9 2019-02-15T22:29:59+00:00 Scott Shawcroft scott@tannewt.org 2019-02-15T22:29:59+00:00 urn:sha1:c9f036ed405f8e5ddf34dd2e15ad4074a270c3c4 As is we would return the native superclass object only. Fixes #1551 2019-02-12T04:55:05+00:00 Scott Shawcroft scott@tannewt.org 2019-02-06T20:13:17+00:00 urn:sha1:c17f147be95e7490e5207c747add2da1cc8b167f This changes a number of things in displayio: * Introduces BuiltinFont and Glyph so the built in font can be used by libraries. For boards with a font it is available as board.TERMINAL_FONT. Fixes #1172 * Remove _load_row from Bitmap in favor of bitmap[] access. Index can be x/y tuple or overall index. Fixes #1191 * Add width and height properties to Bitmap. * Add insert and [] access to Group. Fixes #1518 * Add index param to pop on Group. * Terminal no longer takes unicode character info. It takes a BuiltinFont instead. * Fix Terminal's handling of [###D vt100 commands used when up arrowing into repl history. * Add x and y positions to Group plus scale as well. * Add bitmap accessor for BuiltinFont 2019-01-17T18:57:05+00:00 Scott Shawcroft scott@tannewt.org 2019-01-17T18:57:05+00:00 urn:sha1:5277138c992b860cfbdb767f18e034c42e31b6a1 2018-09-12T22:25:59+00:00 Scott Shawcroft scott@tannewt.org 2018-09-11T05:00:21+00:00 urn:sha1:f21cf15c384756ae462fdffded79c4bda8afcc28 Also, renamed Sprite's palette to pixel_shader so it can be anything that produces colors based on values (including color values). Added a ColorConverter that converts RGB888 (found in bitmaps) to RGB565 for the display. Fixes #1182 2018-08-31T19:31:52+00:00 Scott Shawcroft scott@tannewt.org 2018-08-15T18:01:01+00:00 urn:sha1:6697544cdf87d0df5b761d401ad6ffe3a8d752fc It's designed to minimize RAM footprint by using Sprites to represent objects on the screen. The object model also facilitates partial screen updating which reduces the bandwidth needed to display. This is all handled in C. Python simply manipulates the objects with the ability to synchronize to frame timing.