CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=4.1.x 2019-12-18T04:14:20+00:00 2019-12-18T04:14:20+00:00 Jeff Epler jepler@gmail.com 2019-12-17T16:02:46+00:00 urn:sha1:241988b3d198169067a0d291852af882ae092d3e 2019-12-17T16:01:33+00:00 Jeff Epler jepler@gmail.com 2019-12-17T16:01:33+00:00 urn:sha1:1719a14cf07866f3c86a4daac7f09124004d7eb9 .. this reclaims several kB on CPX, where we really need it. 2019-07-18T23:47:28+00:00 Scott Shawcroft scott@tannewt.org 2019-07-18T23:47:28+00:00 urn:sha1:4a6bdb6fe471b3024b2ca1d977ef02bfd94cc12a This fixes the bug that bitmap changes do not cause screen updates and optimizes the refresh when the bitmap is simply shown on the screen. If the bitmap is used in tiles, then changing it will cause all TileGrids using it to do a full refresh. Fixes #1981 2019-06-29T23:10:47+00:00 Radomir Dopieralski openstack@sheep.art.pl 2019-06-29T23:10:47+00:00 urn:sha1:7c908b08ee3704a4784919e68b17e1a2f571fa17 Instead of iterating over all the glyphs and calculating the maximum width and height, use the FONTBOUNDINGBOX to determine the size of a tile for terminalio. This works better with fonts such as generated by FontForge, that don't include the empty space in the glyph bitmap itself. It also lets the font author specify vertical spacing they want. I only tested this with the default font and with one I generated with FontForge. 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. 2019-06-11T20:16:29+00:00 Dan Halbert halbert@halwitz.org 2019-06-11T20:16:29+00:00 urn:sha1:4fc189b60c800f097db55c16768fa8c73eb72ccf 2019-06-11T19:22:32+00:00 Dan Halbert halbert@halwitz.org 2019-06-11T19:22:32+00:00 urn:sha1:5164a6eb26ebc8f02a90081b610496e2517259ed 2019-05-24T19:32:24+00:00 Dan Halbert halbert@halwitz.org 2019-05-24T19:32:24+00:00 urn:sha1:4e85c1ef91683929df0afe105e92ce6e4291b445 Mark boards that set CFLAGS_INLINE_LIMIT for particular langauges as needing clean builds. Fixes #1910. 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. 2019-04-12T22:25:48+00:00 Scott Shawcroft scott@tannewt.org 2019-04-12T22:25:48+00:00 urn:sha1:796fc3f5abd856848829fc58861c2a69d42c684f