Add emotes

Add emotes.py. It accepts a list of images and creates a texture with 64 total
embedded images.

The shader knows how to draw these into fixed 6-character-wide slots. Each slot
must be aligned to a 6-character boundary. osc_ctrl has to pad with spaces
to make this work.

This whole patch is a little more complicated than it has any right to be, but
my brain feels fuzzy and I don't know where to start fixing it, so I'm going to
leave it shitty-but-functional for now.

There's also some bug where writing a character into the 11th slot causes it to
show up at the end of the board. I'll figure that out later, idk.

I didn't include any of the emotes I use since I couldn't find any info on
their licenses. I'm just banking on having a good workflow later on so
people can add their own.

1 files changed, 3 insertions, 9 deletions

diff --git a/generate_utils.py b/generate_utils.py
index e8c60b8..0480c3c 100644
--- a/generate_utils.py
+++ b/generate_utils.py
@@ -10,18 +10,12 @@ def replaceMacros(lines, macro_defs):
 # the last cell will (with the current implementation) wrap around to the front
 # of the board.
 BOARD_ROWS=4
-BOARD_COLS=44
-INDEX_BITS=4
+BOARD_COLS=48
+NUM_REGIONS = 16
 CHARS_PER_CELL=256
 BYTES_PER_CHAR=2
 
-NUM_LAYERS=ceil((BOARD_ROWS * BOARD_COLS) / (2**INDEX_BITS))
-
-# The bits per layer are:
-#   8 bits: letter selection (256 possible letters per slot)
-#   3 bits: slot selection (each layer controls 8 slots)
-#   1 bit: enable bit (turns layer off while we index to a new slot)
-NUM_PARAM_BITS=(NUM_LAYERS * (8 + INDEX_BITS + 1))
+NUM_LAYERS=ceil((BOARD_ROWS * BOARD_COLS) / NUM_REGIONS)
 
 # Implementation detail. We use this parameter to return from the terminal
 # state of the FX layer to the starting state.