display: Move icon drawing from display.py to lcd_chip code

Move the st7920 icon rendering optimizations from display.py to
st7920.py.  This simplifies the code for other displays.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2018-09-20 11:58:43 -04:00
committed by KevinOConnor
parent 2857255ef1
commit 2a5778be3a
4 changed files with 50 additions and 60 deletions

View File

@@ -5,7 +5,7 @@
#
# This file may be distributed under the terms of the GNU GPLv3 license.
import logging
from font8x14 import VGA_FONT as CHAR_SET
import icons, font8x14
BACKGROUND_PRIORITY_CLOCK = 0x7fffffff00000000
@@ -29,7 +29,6 @@ class UC1701:
self.spi_oid = self.mcu.create_oid()
self.a0_oid = self.mcu.create_oid()
self.mcu.register_config_callback(self.build_config)
self.glyph_buffer = []
self.spi_xfer_cmd = self.set_pin_cmd = None
self.vram = ([bytearray(128) for i in range(8)],
[bytearray('~'*128) for i in range(8)])
@@ -114,24 +113,6 @@ class UC1701:
page_byte = ~(0x01 << (pix_y % 8))
#set the correct pixel in the vram buffer to 0
self.vram[self.CURRENT_BUF][page_idx][pix_x] &= page_byte
def load_glyph(self, glyph_id, data):
if len(data) > 16:
data = data[:16]
self.glyph_buffer.append((glyph_id, data))
self.glyph_buffer.sort(key=lambda x: x[0])
def write_glyph(self, x, y, glyph_id):
pix_x = x*8
pix_y = y*16
data = self.glyph_buffer[glyph_id][1]
for bits in data:
if bits:
bit_x = pix_x
for i in range(15, -1, -1):
mask = 0x0001 << i
if bits & mask:
self.set_pixel(bit_x, pix_y)
bit_x += 1
pix_y += 1
def write_text(self, x, y, data):
if x + len(data) > 16:
data = data[:16 - min(x, 16)]
@@ -143,7 +124,7 @@ class UC1701:
# Empty char
pix_x += 8
continue
char = CHAR_SET[c_idx]
char = font8x14.VGA_FONT[c_idx]
bit_y = pix_y
for bits in char:
if bits:
@@ -166,6 +147,12 @@ class UC1701:
if bits & mask:
self.set_pixel(pix_x, pix_y)
pix_x += 1
def write_glyph(self, x, y, glyph_name):
icon = icons.Icons16x16.get(glyph_name)
if icon is not None:
# Draw icon in graphics mode
for i, bits in enumerate(icon):
self.write_graphics(x, y, i, [(bits >> 8) & 0xff, bits & 0xff])
def clear(self):
zeros = bytearray(128)
for page in self.vram[self.CURRENT_BUF]: