circuitpython/tools/gen_display_resources.py

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2020-06-03 18:40:05 -04:00
# SPDX-FileCopyrightText: 2014 MicroPython & CircuitPython contributors (https://github.com/adafruit/circuitpython/graphs/contributors)
#
# SPDX-License-Identifier: MIT
import argparse
import os
import struct
import sys
sys.path.insert(0, "bitmap_font")
sys.path.insert(0, "../../tools/bitmap_font")
from adafruit_bitmap_font import bitmap_font
parser = argparse.ArgumentParser(description="Generate displayio resources.")
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parser.add_argument("--font", type=str, help="Font path", required=True)
parser.add_argument("--extra_characters", type=str, help="Unicode string of extra characters")
parser.add_argument(
"--sample_file",
type=argparse.FileType("r", encoding="utf-8"),
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help="Text file that includes strings to support.",
)
parser.add_argument("--output_c_file", type=argparse.FileType("w"), required=True)
args = parser.parse_args()
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class BitmapStub:
def __init__(self, width, height, color_depth):
self.width = width
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self.rows = [b""] * height
def _load_row(self, y, row):
self.rows[y] = bytes(row)
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f = bitmap_font.load_font(args.font, BitmapStub)
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# Load extra characters from the sample file.
sample_characters = set()
if args.sample_file:
for line in args.sample_file:
# Skip comments because we add additional characters in our huffman comments.
if line.startswith("//"):
continue
for c in line.strip():
sample_characters.add(c)
# Merge visible ascii, sample characters and extra characters.
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visible_ascii = bytes(range(0x20, 0x7F)).decode("utf-8")
all_characters = list(visible_ascii)
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for c in sample_characters:
if c not in all_characters:
all_characters += c
if args.extra_characters:
all_characters.extend(args.extra_characters)
all_characters = "".join(sorted(set(all_characters)))
filtered_characters = all_characters
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# Try to pre-load all of the glyphs. Misses will still be slow later.
f.load_glyphs(set(ord(c) for c in all_characters))
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missing = 0
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# Get each glyph.
for c in set(all_characters):
if ord(c) not in f._glyphs:
missing += 1
filtered_characters = filtered_characters.replace(c, "")
continue
g = f.get_glyph(ord(c))
if g["shift"][1] != 0:
raise RuntimeError("y shift")
if missing > 0:
print("Font missing", missing, "characters", file=sys.stderr)
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tile_x, tile_y, dx, dy = f.get_bounding_box()
total_bits = tile_x * len(all_characters)
total_bits += 32 - total_bits % 32
bytes_per_row = total_bits // 8
b = bytearray(bytes_per_row * tile_y)
for x, c in enumerate(filtered_characters):
g = f.get_glyph(ord(c))
start_bit = x * tile_x + g["bounds"][2]
start_y = (tile_y - 2) - (g["bounds"][1] + g["bounds"][3])
for y, row in enumerate(g["bitmap"].rows):
for i in range(g["bounds"][0]):
byte = i // 8
bit = i % 8
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if row[byte] & (1 << (7 - bit)) != 0:
overall_bit = start_bit + (start_y + y) * bytes_per_row * 8 + i
b[overall_bit // 8] |= 1 << (7 - (overall_bit % 8))
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extra_characters = ""
for c in filtered_characters:
if c not in visible_ascii:
extra_characters += c
c_file = args.output_c_file
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c_file.write(
"""\
#include "shared-bindings/displayio/Bitmap.h"
#include "shared-bindings/displayio/Palette.h"
#include "supervisor/shared/display.h"
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"""
)
c_file.write(
"""\
#if CIRCUITPY_REPL_LOGO
"""
)
if tile_y == 16:
blinka_size = 16
c_file.write(
"""\
const uint32_t blinka_bitmap_data[32] = {
0x00000011, 0x11000000,
0x00000111, 0x53100000,
0x00000111, 0x56110000,
0x00000111, 0x11140000,
0x00000111, 0x20002000,
0x00000011, 0x13000000,
0x00000001, 0x11200000,
0x00000000, 0x11330000,
0x00000000, 0x01122000,
0x00001111, 0x44133000,
0x00032323, 0x24112200,
0x00111114, 0x44113300,
0x00323232, 0x34112200,
0x11111144, 0x44443300,
0x11111111, 0x11144401,
0x23232323, 0x21111110
};
"""
)
else:
blinka_size = 12
c_file.write(
"""\
const uint32_t blinka_bitmap_data[28] = {
0x00000111, 0x00000000,
0x00001153, 0x10000000,
0x00001156, 0x11000000,
0x00001111, 0x14000000,
0x00000112, 0x00200000,
0x00000011, 0x30000000,
0x00000011, 0x20000000,
0x00011144, 0x13000000,
0x00232324, 0x12000000,
0x01111444, 0x13000000,
0x32323234, 0x12010000,
0x11111144, 0x44100000
};
"""
)
c_file.write(
"""\
const displayio_bitmap_t blinka_bitmap = {{
.base = {{.type = &displayio_bitmap_type }},
.width = {0},
.height = {0},
.data = (uint32_t*) blinka_bitmap_data,
.stride = 2,
.bits_per_value = 4,
.x_shift = 3,
.x_mask = 0x7,
.bitmask = 0xf,
.read_only = true
}};
_displayio_color_t blinka_colors[7] = {{
{{
.rgb888 = 0x000000,
.transparent = true
}},
{{ // Purple
.rgb888 = 0x8428bc
}},
{{ // Pink
.rgb888 = 0xff89bc
}},
{{ // Light blue
.rgb888 = 0x7beffe
}},
{{ // Dark purple
.rgb888 = 0x51395f
}},
{{ // White
.rgb888 = 0xffffff
}},
{{ // Dark Blue
.rgb888 = 0x0736a0
}},
}};
displayio_palette_t blinka_palette = {{
.base = {{.type = &displayio_palette_type }},
.colors = blinka_colors,
.color_count = 7,
.needs_refresh = false
}};
displayio_tilegrid_t supervisor_blinka_sprite = {{
.base = {{.type = &displayio_tilegrid_type }},
.bitmap = (displayio_bitmap_t*) &blinka_bitmap,
.pixel_shader = &blinka_palette,
.x = 0,
.y = 0,
.pixel_width = {0},
.pixel_height = {0},
.bitmap_width_in_tiles = 1,
.width_in_tiles = 1,
.height_in_tiles = 1,
.tile_width = {0},
.tile_height = {0},
.top_left_x = {0},
.top_left_y = {0},
.tiles = 0,
.partial_change = false,
.full_change = false,
.hidden = false,
.hidden_by_parent = false,
.moved = false,
.inline_tiles = true,
.in_group = true
}};
#endif
""".format(
blinka_size
)
)
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c_file.write(
"""\
#if CIRCUITPY_TERMINALIO
_displayio_color_t terminal_colors[2] = {
{
.rgb888 = 0x000000
},
{
.rgb888 = 0xffffff
},
};
displayio_palette_t supervisor_terminal_color = {
.base = {.type = &displayio_palette_type },
.colors = terminal_colors,
.color_count = 2,
.needs_refresh = false
};
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"""
)
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c_file.write(
"""\
displayio_tilegrid_t supervisor_terminal_scroll_area_text_grid = {{
.base = {{ .type = &displayio_tilegrid_type }},
.bitmap = (displayio_bitmap_t*) &supervisor_terminal_font_bitmap,
.pixel_shader = &supervisor_terminal_color,
.x = 0,
.y = 0,
.pixel_width = {1},
.pixel_height = {2},
.bitmap_width_in_tiles = {0},
.tiles_in_bitmap = {0},
.width_in_tiles = 1,
.height_in_tiles = 1,
.tile_width = {1},
.tile_height = {2},
.tiles = NULL,
.partial_change = false,
.full_change = false,
.hidden = false,
.hidden_by_parent = false,
.moved = false,
.inline_tiles = false,
.in_group = true
}};
""".format(
len(all_characters), tile_x, tile_y
)
)
c_file.write(
"""\
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displayio_tilegrid_t supervisor_terminal_status_bar_text_grid = {{
.base = {{ .type = &displayio_tilegrid_type }},
.bitmap = (displayio_bitmap_t*) &supervisor_terminal_font_bitmap,
.pixel_shader = &supervisor_terminal_color,
.x = 0,
.y = 0,
.pixel_width = {1},
.pixel_height = {2},
.bitmap_width_in_tiles = {0},
.tiles_in_bitmap = {0},
.width_in_tiles = 1,
.height_in_tiles = 1,
.tile_width = {1},
.tile_height = {2},
.tiles = NULL,
.partial_change = false,
.full_change = false,
.hidden = false,
.hidden_by_parent = false,
.moved = false,
.inline_tiles = false,
.in_group = true
}};
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""".format(
len(all_characters), tile_x, tile_y
)
)
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c_file.write(
"""\
const uint32_t font_bitmap_data[{}] = {{
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""".format(
bytes_per_row * tile_y // 4
)
)
for i, word in enumerate(struct.iter_unpack(">I", b)):
c_file.write("0x{:08x}, ".format(word[0]))
if (i + 1) % (bytes_per_row // 4) == 0:
c_file.write("\n")
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c_file.write(
"""\
};
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"""
)
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c_file.write(
"""\
displayio_bitmap_t supervisor_terminal_font_bitmap = {{
.base = {{.type = &displayio_bitmap_type }},
.width = {},
.height = {},
.data = (uint32_t*) font_bitmap_data,
.stride = {},
.bits_per_value = 1,
.x_shift = 5,
.x_mask = 0x1f,
.bitmask = 0x1,
.read_only = true
}};
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""".format(
len(all_characters) * tile_x, tile_y, bytes_per_row / 4
)
)
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c_file.write(
"""\
const fontio_builtinfont_t supervisor_terminal_font = {{
.base = {{.type = &fontio_builtinfont_type }},
.bitmap = &supervisor_terminal_font_bitmap,
.width = {},
.height = {},
.unicode_characters = (const uint8_t*) "{}",
.unicode_characters_len = {}
}};
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""".format(
tile_x, tile_y, extra_characters, len(extra_characters.encode("utf-8"))
)
)
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c_file.write(
"""\
terminalio_terminal_obj_t supervisor_terminal = {
.base = { .type = &terminalio_terminal_type },
.font = &supervisor_terminal_font,
.cursor_x = 0,
.cursor_y = 0,
.scroll_area = NULL,
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.status_bar = NULL
};
#endif
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"""
)