suspect-devices/circuitpython/supervisor/shared/display.c, branch 6.2.x

run code formatting script

2021-03-15T13:57:36+00:00

Replace displaio.Group.children with a python list

2021-02-27T19:52:38+00:00

This is a first go at it, done by naive replacing of all array operations with corresponding operations on the list. Note that there is a lot of unnecessary type conversions, here. Also, list_pop has been copied, because it's decalerd STATIC in py/objlist.h

displaio: don't store group children native object

2021-02-27T19:52:38+00:00

Since we want to expose the list of group's children to the user, we should only have the original objects in it, without any other additional data, and compute the native object as needed.

Use movable allocation system for terminal tilegrid.

2020-11-28T16:54:34+00:00

Moving memory is now done by the infrastructure and neither necessary nor correct here anymore.

Add movable allocation system.

2020-11-28T16:50:23+00:00

This allows calls to `allocate_memory()` while the VM is running, it will then allocate from the GC heap (unless there is a suitable hole among the supervisor allocations), and when the VM exits and the GC heap is freed, the allocation will be moved to the bottom of the former GC heap and transformed into a proper supervisor allocation. Existing movable allocations will also be moved to defragment the supervisor heap and ensure that the next VM run gets as much memory as possible for the GC heap. By itself this breaks terminalio because it violates the assumption that supervisor_display_move_memory() still has access to an undisturbed heap to copy the tilegrid from. It will work in many cases, but if you're unlucky you will get garbled terminal contents after exiting from the vm run that created the display. This will be fixed in the following commit, which is separate to simplify review.

displayio: When the display is tall, move blinka above the text

2020-11-19T17:43:18+00:00

This makes a more useful display on the portrait magtag, allowing 21 characters across instead of just 18. There are 20 full rows of text, instead of 21. The total number of characters increases slightly from 378 to 420. For comparison, the Commodore VIC 20 had 22 rows of 23 characters for a total of 506 characters. :-P

supervisor: Always allocate at least a 1x1 terminal

2020-09-01T15:55:45+00:00

Otherwise, out of range writes would occur in tilegrid_set_tile, causing a safe mode reset. ``` Hardware watchpoint 6: -location *stack_alloc->ptr Old value = 24652061 New value = 24641565 0x000444f2 in common_hal_displayio_tilegrid_set_tile (self=0x200002c8 , x=1, y=1, tile_index=0 '\000') at ../../shared-module/displayio/TileGrid.c:236 236 if (!self->partial_change) { (gdb) ```

Turn off terminalio for ja and ko

2020-08-18T00:17:59+00:00

The font is missing many characters and the build needs the space. We can optimize font storage when we get a good font. The serial output will work as usual.

Fix build errors when SHARPDISPLAY && !RGBMATRIX

2020-08-12T12:39:12+00:00

sharpmemory: Implement support for Sharp Memory Displays in framebufferio

2020-08-12T12:32:18+00:00