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Save RAM and improve volume changes

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Save RAM by optimising imports and reducing class usage
Change volume by 8% each time, using saved volume value and only one query. Minimum volume is 1% and max is 100%. Queries are not run if decreasing volume from 1% or increasing from 100%
This commit is contained in:
Matthew Grove
2024-05-16 22:55:51 +01:00
parent 0c4cbfcbb1
commit ae8e42d68f
6 changed files with 214 additions and 231 deletions
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83
font.py
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@@ -1,4 +1,4 @@
from utils import Utils
from utils import colour
# ===========Start of FONTS Section=========================
# Standard ASCII 5x8 font
@@ -264,51 +264,46 @@ FONT = bytes([
0x00, 0x00, 0x00, 0x00, 0x00 # 255 also a <space>
])
class Font:
@staticmethod
def character(lcd,asc,xt,yt,sz,r,g,b): # Single character sz is size: 1 or 2
cc = Utils.colour(r,g,b)
code = asc * 5 # 5 bytes per character
for ii in range(5):
line = FONT[code + ii]
for yy in range(8):
if (line >> yy) & 0x1:
lcd.pixel(ii*sz+xt,yy*sz+yt,cc)
if sz > 1:
lcd.pixel(ii*sz+xt+1,yy*sz+yt,cc)
lcd.pixel(ii*sz+xt,yy*sz+yt+1,cc)
lcd.pixel(ii*sz+xt+1,yy*sz+yt+1,cc)
if sz == 3:
lcd.pixel(ii*sz+xt, yy*sz+yt+2,cc)
lcd.pixel(ii*sz+xt+1,yy*sz+yt+2,cc)
lcd.pixel(ii*sz+xt+2,yy*sz+yt+2,cc)
lcd.pixel(ii*sz+xt+2,yy*sz+yt,cc)
lcd.pixel(ii*sz+xt+2,yy*sz+yt+1,cc)
def character(lcd,asc,xt,yt,sz,r,g,b): # Single character sz is size: 1 or 2
cc = colour(r,g,b)
code = asc * 5 # 5 bytes per character
for ii in range(5):
line = FONT[code + ii]
for yy in range(8):
if (line >> yy) & 0x1:
lcd.pixel(ii*sz+xt,yy*sz+yt,cc)
if sz > 1:
lcd.pixel(ii*sz+xt+1,yy*sz+yt,cc)
lcd.pixel(ii*sz+xt,yy*sz+yt+1,cc)
lcd.pixel(ii*sz+xt+1,yy*sz+yt+1,cc)
if sz == 3:
lcd.pixel(ii*sz+xt, yy*sz+yt+2,cc)
lcd.pixel(ii*sz+xt+1,yy*sz+yt+2,cc)
lcd.pixel(ii*sz+xt+2,yy*sz+yt+2,cc)
lcd.pixel(ii*sz+xt+2,yy*sz+yt,cc)
lcd.pixel(ii*sz+xt+2,yy*sz+yt+1,cc)
@staticmethod
def prnt_st(lcd,asci,xx,yy,sz,r,g,b): # Text string
if sz == 1: move = 6
if sz == 2: move = 11
if sz == 3: move = 17
for letter in(asci):
asci = ord(letter)
Font.character(lcd,asci,xx,yy,sz,r,g,b)
xx = xx + move
def prnt_st(lcd,asci,xx,yy,sz,r,g,b): # Text string
if sz == 1: move = 6
if sz == 2: move = 11
if sz == 3: move = 17
for letter in(asci):
asci = ord(letter)
character(lcd,asci,xx,yy,sz,r,g,b)
xx = xx + move
@staticmethod
def cntr_st(lcd,width,txt,y,size,r,g,b,o=0): # Centres text on line y, skipping first o pixels
if size == 1: w = 6
if size == 2: w = 11
if size == 3: w = 17
gap = (width - len(txt) * w)//2 + o
Font.prnt_st(lcd,txt,gap,y,size,r,g,b)
def cntr_st(lcd,width,txt,y,size,r,g,b,o=0): # Centres text on line y, skipping first o pixels
if size == 1: w = 6
if size == 2: w = 11
if size == 3: w = 17
gap = (width - len(txt) * w)//2 + o
prnt_st(lcd,txt,gap,y,size,r,g,b)
@staticmethod
def rght_st(lcd,asci,xx,yy,sz,r,g,b):
if sz == 1: w = 6
if sz == 2: w = 11
if sz == 3: w = 17
xo = xx - len(asci) * w
Font.prnt_st(lcd,asci,xo,yy,sz,r,g,b)
def rght_st(lcd,asci,xx,yy,sz,r,g,b):
if sz == 1: w = 6
if sz == 2: w = 11
if sz == 3: w = 17
xo = xx - len(asci) * w
prnt_st(lcd,asci,xo,yy,sz,r,g,b)
# =========== End of font support routines ===========