CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=6.2.x 2021-03-25T16:21:39+00:00 2021-03-25T16:21:39+00:00 Kevin Matocha kmatocha@icloud.com 2021-03-25T16:21:39+00:00 urn:sha1:9485805b6aa6178f2b4abe0eaefc76c4ebfc4b6d 2021-03-18T14:06:00+00:00 Jeff Epler jepler@gmail.com 2021-03-18T14:06:00+00:00 urn:sha1:3b506f0fa59872916b617083a3dad9cadd07c428 This routine will be used to simplify code that deals with ranges of bitmap coordinates. 2021-03-18T14:05:07+00:00 Jeff Epler jepler@gmail.com 2021-03-18T14:04:53+00:00 urn:sha1:f40c0c13adacf39bc9a21afd2d9ebbf29135e0f0 .. and simplify the implmentation of displayio_area_union This _slightly_ changes the behavior of displayio_area_union: Formerly, if one of the areas was empty, its coordinates were still used in the min/max calculations. Now, if one of the areas is empty, the result gets the other area's coords In particular, taking the union of the empty area with coords (0,0,0,0) with the non-empty area (x1,y1,x2,y2) would give the area (0,0,x2,y2) before, and (x1,y1,x2,y2) after the change. 2021-03-15T13:57:36+00:00 microDev 70126934+microDev1@users.noreply.github.com 2021-03-15T13:57:36+00:00 urn:sha1:a52eb88031620a81521b937f2a0651dbac2bb350 2021-03-04T19:40:50+00:00 Dan Halbert halbert@halwitz.org 2021-03-04T19:40:50+00:00 urn:sha1:d1184e7e947dd1146e2d0fdcd2ef7d3f407492a0 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. 2019-05-22T22:00:47+00:00 Scott Shawcroft scott@tannewt.org 2019-05-22T22:00:47+00:00 urn:sha1:7a117f52ed81999261fae3d43dfeb572c5e9887e 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.