From 1f2b1dedccdf21b629c45ece80b4ca32f6653296 Mon Sep 17 00:00:00 2001
From: Nick Brassel <nick@tzarc.org>
Date: Wed, 13 Apr 2022 18:00:18 +1000
Subject: Quantum Painter (#10174)
* Install dependencies before executing unit tests.
* Split out UTF-8 decoder.
* Fixup python formatting rules.
* Add documentation for QGF/QFF and the RLE format used.
* Add CLI commands for converting images and fonts.
* Add stub rules.mk for QP.
* Add stream type.
* Add base driver and comms interfaces.
* Add support for SPI, SPI+D/C comms drivers.
* Include <qp.h> when enabled.
* Add base support for SPI+D/C+RST panels, as well as concrete implementation of ST7789.
* Add support for GC9A01.
* Add support for ILI9341.
* Add support for ILI9163.
* Add support for SSD1351.
* Implement qp_setpixel, including pixdata buffer management.
* Implement qp_line.
* Implement qp_rect.
* Implement qp_circle.
* Implement qp_ellipse.
* Implement palette interpolation.
* Allow for streams to work with either flash or RAM.
* Image loading.
* Font loading.
* QGF palette loading.
* Progressive decoder of pixel data supporting Raw+RLE, 1-,2-,4-,8-bpp monochrome and palette-based images.
* Image drawing.
* Animations.
* Font rendering.
* Check against 256 colours, dump out the loaded palette if debugging enabled.
* Fix build.
* AVR is not the intended audience.
* `qmk format-c`
* Generation fix.
* First batch of docs.
* More docs and examples.
* Review comments.
* Public API documentation.
---
lib/python/qmk/cli/__init__.py | 4 +-
lib/python/qmk/cli/painter/__init__.py | 2 +
lib/python/qmk/cli/painter/convert_graphics.py | 86 ++++++
lib/python/qmk/cli/painter/make_font.py | 87 ++++++
lib/python/qmk/painter.py | 268 ++++++++++++++++
lib/python/qmk/painter_qff.py | 401 ++++++++++++++++++++++++
lib/python/qmk/painter_qgf.py | 408 +++++++++++++++++++++++++
7 files changed, 1255 insertions(+), 1 deletion(-)
create mode 100644 lib/python/qmk/cli/painter/__init__.py
create mode 100644 lib/python/qmk/cli/painter/convert_graphics.py
create mode 100644 lib/python/qmk/cli/painter/make_font.py
create mode 100644 lib/python/qmk/painter.py
create mode 100644 lib/python/qmk/painter_qff.py
create mode 100644 lib/python/qmk/painter_qgf.py
(limited to 'lib/python/qmk')
diff --git a/lib/python/qmk/cli/__init__.py b/lib/python/qmk/cli/__init__.py
index 5f65e677e5..85baa238a8 100644
--- a/lib/python/qmk/cli/__init__.py
+++ b/lib/python/qmk/cli/__init__.py
@@ -16,7 +16,8 @@ import_names = {
# A mapping of package name to importable name
'pep8-naming': 'pep8ext_naming',
'pyusb': 'usb.core',
- 'qmk-dotty-dict': 'dotty_dict'
+ 'qmk-dotty-dict': 'dotty_dict',
+ 'pillow': 'PIL'
}
safe_commands = [
@@ -67,6 +68,7 @@ subcommands = [
'qmk.cli.multibuild',
'qmk.cli.new.keyboard',
'qmk.cli.new.keymap',
+ 'qmk.cli.painter',
'qmk.cli.pyformat',
'qmk.cli.pytest',
'qmk.cli.via2json',
diff --git a/lib/python/qmk/cli/painter/__init__.py b/lib/python/qmk/cli/painter/__init__.py
new file mode 100644
index 0000000000..d1a225346c
--- /dev/null
+++ b/lib/python/qmk/cli/painter/__init__.py
@@ -0,0 +1,2 @@
+from . import convert_graphics
+from . import make_font
diff --git a/lib/python/qmk/cli/painter/convert_graphics.py b/lib/python/qmk/cli/painter/convert_graphics.py
new file mode 100644
index 0000000000..bbc30d26ff
--- /dev/null
+++ b/lib/python/qmk/cli/painter/convert_graphics.py
@@ -0,0 +1,86 @@
+"""This script tests QGF functionality.
+"""
+import re
+import datetime
+from io import BytesIO
+from qmk.path import normpath
+from qmk.painter import render_header, render_source, render_license, render_bytes, valid_formats
+from milc import cli
+from PIL import Image
+
+
+@cli.argument('-v', '--verbose', arg_only=True, action='store_true', help='Turns on verbose output.')
+@cli.argument('-i', '--input', required=True, help='Specify input graphic file.')
+@cli.argument('-o', '--output', default='', help='Specify output directory. Defaults to same directory as input.')
+@cli.argument('-f', '--format', required=True, help='Output format, valid types: %s' % (', '.join(valid_formats.keys())))
+@cli.argument('-r', '--no-rle', arg_only=True, action='store_true', help='Disables the use of RLE when encoding images.')
+@cli.argument('-d', '--no-deltas', arg_only=True, action='store_true', help='Disables the use of delta frames when encoding animations.')
+@cli.subcommand('Converts an input image to something QMK understands')
+def painter_convert_graphics(cli):
+ """Converts an image file to a format that Quantum Painter understands.
+
+ This command uses the `qmk.painter` module to generate a Quantum Painter image defintion from an image. The generated definitions are written to a files next to the input -- `INPUT.c` and `INPUT.h`.
+ """
+ # Work out the input file
+ if cli.args.input != '-':
+ cli.args.input = normpath(cli.args.input)
+
+ # Error checking
+ if not cli.args.input.exists():
+ cli.log.error('Input image file does not exist!')
+ cli.print_usage()
+ return False
+
+ # Work out the output directory
+ if len(cli.args.output) == 0:
+ cli.args.output = cli.args.input.parent
+ cli.args.output = normpath(cli.args.output)
+
+ # Ensure we have a valid format
+ if cli.args.format not in valid_formats.keys():
+ cli.log.error('Output format %s is invalid. Allowed values: %s' % (cli.args.format, ', '.join(valid_formats.keys())))
+ cli.print_usage()
+ return False
+
+ # Work out the encoding parameters
+ format = valid_formats[cli.args.format]
+
+ # Load the input image
+ input_img = Image.open(cli.args.input)
+
+ # Convert the image to QGF using PIL
+ out_data = BytesIO()
+ input_img.save(out_data, "QGF", use_deltas=(not cli.args.no_deltas), use_rle=(not cli.args.no_rle), qmk_format=format, verbose=cli.args.verbose)
+ out_bytes = out_data.getvalue()
+
+ # Work out the text substitutions for rendering the output data
+ subs = {
+ 'generated_type': 'image',
+ 'var_prefix': 'gfx',
+ 'generator_command': f'qmk painter-convert-graphics -i {cli.args.input.name} -f {cli.args.format}',
+ 'year': datetime.date.today().strftime("%Y"),
+ 'input_file': cli.args.input.name,
+ 'sane_name': re.sub(r"[^a-zA-Z0-9]", "_", cli.args.input.stem),
+ 'byte_count': len(out_bytes),
+ 'bytes_lines': render_bytes(out_bytes),
+ 'format': cli.args.format,
+ }
+
+ # Render the license
+ subs.update({'license': render_license(subs)})
+
+ # Render and write the header file
+ header_text = render_header(subs)
+ header_file = cli.args.output / (cli.args.input.stem + ".qgf.h")
+ with open(header_file, 'w') as header:
+ print(f"Writing {header_file}...")
+ header.write(header_text)
+ header.close()
+
+ # Render and write the source file
+ source_text = render_source(subs)
+ source_file = cli.args.output / (cli.args.input.stem + ".qgf.c")
+ with open(source_file, 'w') as source:
+ print(f"Writing {source_file}...")
+ source.write(source_text)
+ source.close()
diff --git a/lib/python/qmk/cli/painter/make_font.py b/lib/python/qmk/cli/painter/make_font.py
new file mode 100644
index 0000000000..0762843fd3
--- /dev/null
+++ b/lib/python/qmk/cli/painter/make_font.py
@@ -0,0 +1,87 @@
+"""This script automates the conversion of font files into a format QMK firmware understands.
+"""
+
+import re
+import datetime
+from io import BytesIO
+from qmk.path import normpath
+from qmk.painter_qff import QFFFont
+from qmk.painter import render_header, render_source, render_license, render_bytes, valid_formats
+from milc import cli
+
+
+@cli.argument('-f', '--font', required=True, help='Specify input font file.')
+@cli.argument('-o', '--output', required=True, help='Specify output image path.')
+@cli.argument('-s', '--size', default=12, help='Specify font size. Default 12.')
+@cli.argument('-n', '--no-ascii', arg_only=True, action='store_true', help='Disables output of the full ASCII character set (0x20..0x7E), exporting only the glyphs specified.')
+@cli.argument('-u', '--unicode-glyphs', default='', help='Also generate the specified unicode glyphs.')
+@cli.argument('-a', '--no-aa', arg_only=True, action='store_true', help='Disable anti-aliasing on fonts.')
+@cli.subcommand('Converts an input font to something QMK understands')
+def painter_make_font_image(cli):
+ # Create the font object
+ font = QFFFont(cli)
+ # Read from the input file
+ cli.args.font = normpath(cli.args.font)
+ font.generate_image(cli.args.font, cli.args.size, include_ascii_glyphs=(not cli.args.no_ascii), unicode_glyphs=cli.args.unicode_glyphs, use_aa=(False if cli.args.no_aa else True))
+ # Render out the data
+ font.save_to_image(normpath(cli.args.output))
+
+
+@cli.argument('-i', '--input', help='Specify input graphic file.')
+@cli.argument('-o', '--output', default='', help='Specify output directory. Defaults to same directory as input.')
+@cli.argument('-n', '--no-ascii', arg_only=True, action='store_true', help='Disables output of the full ASCII character set (0x20..0x7E), exporting only the glyphs specified.')
+@cli.argument('-u', '--unicode-glyphs', default='', help='Also generate the specified unicode glyphs.')
+@cli.argument('-f', '--format', required=True, help='Output format, valid types: %s' % (', '.join(valid_formats.keys())))
+@cli.argument('-r', '--no-rle', arg_only=True, action='store_true', help='Disable the use of RLE to minimise converted image size.')
+@cli.subcommand('Converts an input font image to something QMK firmware understands')
+def painter_convert_font_image(cli):
+ # Work out the format
+ format = valid_formats[cli.args.format]
+
+ # Create the font object
+ font = QFFFont(cli.log)
+
+ # Read from the input file
+ cli.args.input = normpath(cli.args.input)
+ font.read_from_image(cli.args.input, include_ascii_glyphs=(not cli.args.no_ascii), unicode_glyphs=cli.args.unicode_glyphs)
+
+ # Work out the output directory
+ if len(cli.args.output) == 0:
+ cli.args.output = cli.args.input.parent
+ cli.args.output = normpath(cli.args.output)
+
+ # Render out the data
+ out_data = BytesIO()
+ font.save_to_qff(format, (False if cli.args.no_rle else True), out_data)
+
+ # Work out the text substitutions for rendering the output data
+ subs = {
+ 'generated_type': 'font',
+ 'var_prefix': 'font',
+ 'generator_command': f'qmk painter-convert-font-image -i {cli.args.input.name} -f {cli.args.format}',
+ 'year': datetime.date.today().strftime("%Y"),
+ 'input_file': cli.args.input.name,
+ 'sane_name': re.sub(r"[^a-zA-Z0-9]", "_", cli.args.input.stem),
+ 'byte_count': out_data.getbuffer().nbytes,
+ 'bytes_lines': render_bytes(out_data.getbuffer().tobytes()),
+ 'format': cli.args.format,
+ }
+
+ # Render the license
+ subs.update({'license': render_license(subs)})
+
+ # Render and write the header file
+ header_text = render_header(subs)
+ header_file = cli.args.output / (cli.args.input.stem + ".qff.h")
+ with open(header_file, 'w') as header:
+ print(f"Writing {header_file}...")
+ header.write(header_text)
+ header.close()
+
+ # Render and write the source file
+ source_text = render_source(subs)
+ source_file = cli.args.output / (cli.args.input.stem + ".qff.c")
+ with open(source_file, 'w') as source:
+ print(f"Writing {source_file}...")
+ source.write(source_text)
+ source.close()
diff --git a/lib/python/qmk/painter.py b/lib/python/qmk/painter.py
new file mode 100644
index 0000000000..d0cc1dddec
--- /dev/null
+++ b/lib/python/qmk/painter.py
@@ -0,0 +1,268 @@
+"""Functions that help us work with Quantum Painter's file formats.
+"""
+import math
+import re
+from string import Template
+from PIL import Image, ImageOps
+
+# The list of valid formats Quantum Painter supports
+valid_formats = {
+ 'pal256': {
+ 'image_format': 'IMAGE_FORMAT_PALETTE',
+ 'bpp': 8,
+ 'has_palette': True,
+ 'num_colors': 256,
+ 'image_format_byte': 0x07, # see qp_internal_formats.h
+ },
+ 'pal16': {
+ 'image_format': 'IMAGE_FORMAT_PALETTE',
+ 'bpp': 4,
+ 'has_palette': True,
+ 'num_colors': 16,
+ 'image_format_byte': 0x06, # see qp_internal_formats.h
+ },
+ 'pal4': {
+ 'image_format': 'IMAGE_FORMAT_PALETTE',
+ 'bpp': 2,
+ 'has_palette': True,
+ 'num_colors': 4,
+ 'image_format_byte': 0x05, # see qp_internal_formats.h
+ },
+ 'pal2': {
+ 'image_format': 'IMAGE_FORMAT_PALETTE',
+ 'bpp': 1,
+ 'has_palette': True,
+ 'num_colors': 2,
+ 'image_format_byte': 0x04, # see qp_internal_formats.h
+ },
+ 'mono256': {
+ 'image_format': 'IMAGE_FORMAT_GRAYSCALE',
+ 'bpp': 8,
+ 'has_palette': False,
+ 'num_colors': 256,
+ 'image_format_byte': 0x03, # see qp_internal_formats.h
+ },
+ 'mono16': {
+ 'image_format': 'IMAGE_FORMAT_GRAYSCALE',
+ 'bpp': 4,
+ 'has_palette': False,
+ 'num_colors': 16,
+ 'image_format_byte': 0x02, # see qp_internal_formats.h
+ },
+ 'mono4': {
+ 'image_format': 'IMAGE_FORMAT_GRAYSCALE',
+ 'bpp': 2,
+ 'has_palette': False,
+ 'num_colors': 4,
+ 'image_format_byte': 0x01, # see qp_internal_formats.h
+ },
+ 'mono2': {
+ 'image_format': 'IMAGE_FORMAT_GRAYSCALE',
+ 'bpp': 1,
+ 'has_palette': False,
+ 'num_colors': 2,
+ 'image_format_byte': 0x00, # see qp_internal_formats.h
+ }
+}
+
+license_template = """\
+// Copyright ${year} QMK -- generated source code only, ${generated_type} retains original copyright
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+// This file was auto-generated by `${generator_command}`
+"""
+
+
+def render_license(subs):
+ license_txt = Template(license_template)
+ return license_txt.substitute(subs)
+
+
+header_file_template = """\
+${license}
+#pragma once
+
+#include <qp.h>
+
+extern const uint32_t ${var_prefix}_${sane_name}_length;
+extern const uint8_t ${var_prefix}_${sane_name}[${byte_count}];
+"""
+
+
+def render_header(subs):
+ header_txt = Template(header_file_template)
+ return header_txt.substitute(subs)
+
+
+source_file_template = """\
+${license}
+#include <qp.h>
+
+const uint32_t ${var_prefix}_${sane_name}_length = ${byte_count};
+
+// clang-format off
+const uint8_t ${var_prefix}_${sane_name}[${byte_count}] = {
+${bytes_lines}
+};
+// clang-format on
+"""
+
+
+def render_source(subs):
+ source_txt = Template(source_file_template)
+ return source_txt.substitute(subs)
+
+
+def render_bytes(bytes, newline_after=16):
+ lines = ''
+ for n in range(len(bytes)):
+ if n % newline_after == 0 and n > 0 and n != len(bytes):
+ lines = lines + "\n "
+ elif n == 0:
+ lines = lines + " "
+ lines = lines + " 0x{0:02X},".format(bytes[n])
+ return lines.rstrip()
+
+
+def clean_output(str):
+ str = re.sub(r'\r', '', str)
+ str = re.sub(r'[\n]{3,}', r'\n\n', str)
+ return str
+
+
+def rescale_byte(val, maxval):
+ """Rescales a byte value to the supplied range, i.e. [0,255] -> [0,maxval].
+ """
+ return int(round(val * maxval / 255.0))
+
+
+def convert_requested_format(im, format):
+ """Convert an image to the requested format.
+ """
+
+ # Work out the requested format
+ ncolors = format["num_colors"]
+ image_format = format["image_format"]
+
+ # Ensure we have a valid number of colors for the palette
+ if ncolors <= 0 or ncolors > 256 or (ncolors & (ncolors - 1) != 0):
+ raise ValueError("Number of colors must be 2, 4, 16, or 256.")
+
+ # Work out where we're getting the bytes from
+ if image_format == 'IMAGE_FORMAT_GRAYSCALE':
+ # If mono, convert input to grayscale, then to RGB, then grab the raw bytes corresponding to the intensity of the red channel
+ im = ImageOps.grayscale(im)
+ im = im.convert("RGB")
+ elif image_format == 'IMAGE_FORMAT_PALETTE':
+ # If color, convert input to RGB, palettize based on the supplied number of colors, then get the raw palette bytes
+ im = im.convert("RGB")
+ im = im.convert("P", palette=Image.ADAPTIVE, colors=ncolors)
+
+ return im
+
+
+def convert_image_bytes(im, format):
+ """Convert the supplied image to the equivalent bytes required by the QMK firmware.
+ """
+
+ # Work out the requested format
+ ncolors = format["num_colors"]
+ image_format = format["image_format"]
+ shifter = int(math.log2(ncolors))
+ pixels_per_byte = int(8 / math.log2(ncolors))
+ (width, height) = im.size
+ expected_byte_count = ((width * height) + (pixels_per_byte - 1)) // pixels_per_byte
+
+ if image_format == 'IMAGE_FORMAT_GRAYSCALE':
+ # Take the red channel
+ image_bytes = im.tobytes("raw", "R")
+ image_bytes_len = len(image_bytes)
+
+ # No palette
+ palette = None
+
+ bytearray = []
+ for x in range(expected_byte_count):
+ byte = 0
+ for n in range(pixels_per_byte):
+ byte_offset = x * pixels_per_byte + n
+ if byte_offset < image_bytes_len:
+ # If mono, each input byte is a grayscale [0,255] pixel -- rescale to the range we want then pack together
+ byte = byte | (rescale_byte(image_bytes[byte_offset], ncolors - 1) << int(n * shifter))
+ bytearray.append(byte)
+
+ elif image_format == 'IMAGE_FORMAT_PALETTE':
+ # Convert each pixel to the palette bytes
+ image_bytes = im.tobytes("raw", "P")
+ image_bytes_len = len(image_bytes)
+
+ # Export the palette
+ palette = []
+ pal = im.getpalette()
+ for n in range(0, ncolors * 3, 3):
+ palette.append((pal[n + 0], pal[n + 1], pal[n + 2]))
+
+ bytearray = []
+ for x in range(expected_byte_count):
+ byte = 0
+ for n in range(pixels_per_byte):
+ byte_offset = x * pixels_per_byte + n
+ if byte_offset < image_bytes_len:
+ # If color, each input byte is the index into the color palette -- pack them together
+ byte = byte | ((image_bytes[byte_offset] & (ncolors - 1)) << int(n * shifter))
+ bytearray.append(byte)
+
+ if len(bytearray) != expected_byte_count:
+ raise Exception(f"Wrong byte count, was {len(bytearray)}, expected {expected_byte_count}")
+
+ return (palette, bytearray)
+
+
+def compress_bytes_qmk_rle(bytearray):
+ debug_dump = False
+ output = []
+ temp = []
+ repeat = False
+
+ def append_byte(c):
+ if debug_dump:
+ print('Appending byte:', '0x{0:02X}'.format(int(c)), '=', c)
+ output.append(c)
+
+ def append_range(r):
+ append_byte(127 + len(r))
+ if debug_dump:
+ print('Appending {0} byte(s):'.format(len(r)), '[', ', '.join(['{0:02X}'.format(e) for e in r]), ']')
+ output.extend(r)
+
+ for n in range(0, len(bytearray) + 1):
+ end = True if n == len(bytearray) else False
+ if not end:
+ c = bytearray[n]
+ temp.append(c)
+ if len(temp) <= 1:
+ continue
+
+ if debug_dump:
+ print('Temp buffer state {0:3d} bytes:'.format(len(temp)), '[', ', '.join(['{0:02X}'.format(e) for e in temp]), ']')
+
+ if repeat:
+ if temp[-1] != temp[-2]:
+ repeat = False
+ if not repeat or len(temp) == 128 or end:
+ append_byte(len(temp) if end else len(temp) - 1)
+ append_byte(temp[0])
+ temp = [temp[-1]]
+ repeat = False
+ else:
+ if len(temp) >= 2 and temp[-1] == temp[-2]:
+ repeat = True
+ if len(temp) > 2:
+ append_range(temp[0:(len(temp) - 2)])
+ temp = [temp[-1], temp[-1]]
+ continue
+ if len(temp) == 128 or end:
+ append_range(temp)
+ temp = []
+ repeat = False
+ return output
diff --git a/lib/python/qmk/painter_qff.py b/lib/python/qmk/painter_qff.py
new file mode 100644
index 0000000000..746bb166e5
--- /dev/null
+++ b/lib/python/qmk/painter_qff.py
@@ -0,0 +1,401 @@
+# Copyright 2021 Nick Brassel (@tzarc)
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+# Quantum Font File "QFF" Font File Format.
+# See https://docs.qmk.fm/#/quantum_painter_qff for more information.
+
+from pathlib import Path
+from typing import Dict, Any
+from colorsys import rgb_to_hsv
+from PIL import Image, ImageDraw, ImageFont, ImageChops
+from PIL._binary import o8, o16le as o16, o32le as o32
+from qmk.painter_qgf import QGFBlockHeader, QGFFramePaletteDescriptorV1
+from milc.attrdict import AttrDict
+import qmk.painter
+
+
+def o24(i):
+ return o16(i & 0xFFFF) + o8((i & 0xFF0000) >> 16)
+
+
+########################################################################################################################
+
+
+class QFFGlyphInfo(AttrDict):
+ def __init__(self, *args, **kwargs):
+ super().__init__()
+
+ for n, value in enumerate(args):
+ self[f'arg:{n}'] = value
+
+ for key, value in kwargs.items():
+ self[key] = value
+
+ def write(self, fp, include_code_point):
+ if include_code_point is True:
+ fp.write(o24(ord(self.code_point)))
+
+ value = ((self.data_offset << 6) & 0xFFFFC0) | (self.w & 0x3F)
+ fp.write(o24(value))
+
+
+########################################################################################################################
+
+
+class QFFFontDescriptor:
+ type_id = 0x00
+ length = 20
+ magic = 0x464651
+
+ def __init__(self):
+ self.header = QGFBlockHeader()
+ self.header.type_id = QFFFontDescriptor.type_id
+ self.header.length = QFFFontDescriptor.length
+ self.version = 1
+ self.total_file_size = 0
+ self.line_height = 0
+ self.has_ascii_table = False
+ self.unicode_glyph_count = 0
+ self.format = 0xFF
+ self.flags = 0
+ self.compression = 0xFF
+ self.transparency_index = 0xFF # TODO: Work out how to retrieve the transparent palette entry from the PIL gif loader
+
+ def write(self, fp):
+ self.header.write(fp)
+ fp.write(
+ b'' # start off with empty bytes...
+ + o24(QFFFontDescriptor.magic) # magic
+ + o8(self.version) # version
+ + o32(self.total_file_size) # file size
+ + o32((~self.total_file_size) & 0xFFFFFFFF) # negated file size
+ + o8(self.line_height) # line height
+ + o8(1 if self.has_ascii_table is True else 0) # whether or not we have an ascii table present
+ + o16(self.unicode_glyph_count & 0xFFFF) # number of unicode glyphs present
+ + o8(self.format) # format
+ + o8(self.flags) # flags
+ + o8(self.compression) # compression
+ + o8(self.transparency_index) # transparency index
+ )
+
+ @property
+ def is_transparent(self):
+ return (self.flags & 0x01) == 0x01
+
+ @is_transparent.setter
+ def is_transparent(self, val):
+ if val:
+ self.flags |= 0x01
+ else:
+ self.flags &= ~0x01
+
+
+########################################################################################################################
+
+
+class QFFAsciiGlyphTableV1:
+ type_id = 0x01
+ length = 95 * 3 # We have 95 glyphs: [0x20...0x7E]
+
+ def __init__(self):
+ self.header = QGFBlockHeader()
+ self.header.type_id = QFFAsciiGlyphTableV1.type_id
+ self.header.length = QFFAsciiGlyphTableV1.length
+
+ # Each glyph is key=code_point, value=QFFGlyphInfo
+ self.glyphs = {}
+
+ def add_glyph(self, glyph: QFFGlyphInfo):
+ self.glyphs[ord(glyph.code_point)] = glyph
+
+ def write(self, fp):
+ self.header.write(fp)
+
+ for n in range(0x20, 0x7F):
+ self.glyphs[n].write(fp, False)
+
+
+########################################################################################################################
+
+
+class QFFUnicodeGlyphTableV1:
+ type_id = 0x02
+
+ def __init__(self):
+ self.header = QGFBlockHeader()
+ self.header.type_id = QFFUnicodeGlyphTableV1.type_id
+ self.header.length = 0
+
+ # Each glyph is key=code_point, value=QFFGlyphInfo
+ self.glyphs = {}
+
+ def add_glyph(self, glyph: QFFGlyphInfo):
+ self.glyphs[ord(glyph.code_point)] = glyph
+
+ def write(self, fp):
+ self.header.length = len(self.glyphs.keys()) * 6
+ self.header.write(fp)
+
+ for n in sorted(self.glyphs.keys()):
+ self.glyphs[n].write(fp, True)
+
+
+########################################################################################################################
+
+
+class QFFFontDataDescriptorV1:
+ type_id = 0x04
+
+ def __init__(self):
+ self.header = QGFBlockHeader()
+ self.header.type_id = QFFFontDataDescriptorV1.type_id
+ self.data = []
+
+ def write(self, fp):
+ self.header.length = len(self.data)
+ self.header.write(fp)
+ fp.write(bytes(self.data))
+
+
+########################################################################################################################
+
+
+def _generate_font_glyphs_list(use_ascii, unicode_glyphs):
+ # The set of glyphs that we want to generate images for
+ glyphs = {}
+
+ # Add ascii charset if requested
+ if use_ascii is True:
+ for c in range(0x20, 0x7F): # does not include 0x7F!
+ glyphs[chr(c)] = True
+
+ # Append any extra unicode glyphs
+ unicode_glyphs = list(unicode_glyphs)
+ for c in unicode_glyphs:
+ glyphs[c] = True
+
+ return sorted(glyphs.keys())
+
+
+class QFFFont:
+ def __init__(self, logger):
+ self.logger = logger
+ self.image = None
+ self.glyph_data = {}
+ self.glyph_height = 0
+ return
+
+ def _extract_glyphs(self, format):
+ total_data_size = 0
+ total_rle_data_size = 0
+
+ converted_img = qmk.painter.convert_requested_format(self.image, format)
+ (self.palette, _) = qmk.painter.convert_image_bytes(converted_img, format)
+
+ # Work out how many bytes used for RLE vs. non-RLE
+ for _, glyph_entry in self.glyph_data.items():
+ glyph_img = converted_img.crop((glyph_entry.x, 1, glyph_entry.x + glyph_entry.w, 1 + self.glyph_height))
+ (_, this_glyph_image_bytes) = qmk.painter.convert_image_bytes(glyph_img, format)
+ this_glyph_rle_bytes = qmk.painter.compress_bytes_qmk_rle(this_glyph_image_bytes)
+ total_data_size += len(this_glyph_image_bytes)
+ total_rle_data_size += len(this_glyph_rle_bytes)
+ glyph_entry['image_uncompressed_bytes'] = this_glyph_image_bytes
+ glyph_entry['image_compressed_bytes'] = this_glyph_rle_bytes
+
+ return (total_data_size, total_rle_data_size)
+
+ def _parse_image(self, img, include_ascii_glyphs: bool = True, unicode_glyphs: str = ''):
+ # Clear out any existing font metadata
+ self.image = None
+ # Each glyph is key=code_point, value={ x: ?, w: ? }
+ self.glyph_data = {}
+ self.glyph_height = 0
+
+ # Work out the list of glyphs required
+ glyphs = _generate_font_glyphs_list(include_ascii_glyphs, unicode_glyphs)
+
+ # Work out the geometry
+ (width, height) = img.size
+
+ # Work out the glyph offsets/widths
+ glyph_pixel_offsets = []
+ glyph_pixel_widths = []
+ pixels = img.load()
+
+ # Run through the markers and work out where each glyph starts/stops
+ glyph_split_color = pixels[0, 0] # top left pixel is the marker color we're going to use to split each glyph
+ glyph_pixel_offsets.append(0)
+ last_offset = 0
+ for x in range(1, width):
+ if pixels[x, 0] == glyph_split_color:
+ glyph_pixel_offsets.append(x)
+ glyph_pixel_widths.append(x - last_offset)
+ last_offset = x
+ glyph_pixel_widths.append(width - last_offset)
+
+ # Make sure the number of glyphs we're attempting to generate matches the input image
+ if len(glyph_pixel_offsets) != len(glyphs):
+ self.logger.error('The number of glyphs to generate doesn\'t match the number of detected glyphs in the input image.')
+ return
+
+ # Set up the required metadata for each glyph
+ for n in range(0, len(glyph_pixel_offsets)):
+ self.glyph_data[glyphs[n]] = QFFGlyphInfo(code_point=glyphs[n], x=glyph_pixel_offsets[n], w=glyph_pixel_widths[n])
+
+ # Parsing was successful, keep the image in this instance
+ self.image = img
+ self.glyph_height = height - 1 # subtract the line with the markers
+
+ def generate_image(self, ttf_file: Path, font_size: int, include_ascii_glyphs: bool = True, unicode_glyphs: str = '', include_before_left: bool = False, use_aa: bool = True):
+ # Load the font
+ font = ImageFont.truetype(str(ttf_file), int(font_size))
+ # Work out the max font size
+ max_font_size = font.font.ascent + abs(font.font.descent)
+ # Work out the list of glyphs required
+ glyphs = _generate_font_glyphs_list(include_ascii_glyphs, unicode_glyphs)
+
+ baseline_offset = 9999999
+ total_glyph_width = 0
+ max_glyph_height = -1
+
+ # Measure each glyph to determine the overall baseline offset required
+ for glyph in glyphs:
+ (ls_l, ls_t, ls_r, ls_b) = font.getbbox(glyph, anchor='ls')
+ glyph_width = (ls_r - ls_l) if include_before_left else (ls_r)
+ glyph_height = font.getbbox(glyph, anchor='la')[3]
+ if max_glyph_height < glyph_height:
+ max_glyph_height = glyph_height
+ total_glyph_width += glyph_width
+ if baseline_offset > ls_t:
+ baseline_offset = ls_t
+
+ # Create the output image
+ img = Image.new("RGB", (total_glyph_width + 1, max_font_size * 2 + 1), (0, 0, 0, 255))
+ cur_x_pos = 0
+
+ # Loop through each glyph...
+ for glyph in glyphs:
+ # Work out this glyph's bounding box
+ (ls_l, ls_t, ls_r, ls_b) = font.getbbox(glyph, anchor='ls')
+ glyph_width = (ls_r - ls_l) if include_before_left else (ls_r)
+ glyph_height = ls_b - ls_t
+ x_offset = -ls_l
+ y_offset = ls_t - baseline_offset
+
+ # Draw each glyph to its own image so we don't get anti-aliasing applied to the final image when straddling edges
+ glyph_img = Image.new("RGB", (glyph_width, max_font_size), (0, 0, 0, 255))
+ glyph_draw = ImageDraw.Draw(glyph_img)
+ if not use_aa:
+ glyph_draw.fontmode = "1"
+ glyph_draw.text((x_offset, y_offset), glyph, font=font, anchor='lt')
+
+ # Place the glyph-specific image in the correct location overall
+ img.paste(glyph_img, (cur_x_pos, 1))
+
+ # Set up the marker for start of each glyph
+ pixels = img.load()
+ pixels[cur_x_pos, 0] = (255, 0, 255)
+
+ # Increment for the next glyph's position
+ cur_x_pos += glyph_width
+
+ # Add the ending marker so that the difference/crop works
+ pixels = img.load()
+ pixels[cur_x_pos, 0] = (255, 0, 255)
+
+ # Determine the usable font area
+ dummy_img = Image.new("RGB", (total_glyph_width + 1, max_font_size + 1), (0, 0, 0, 255))
+ bbox = ImageChops.difference(img, dummy_img).getbbox()
+ bbox = (bbox[0], bbox[1], bbox[2] - 1, bbox[3]) # remove the unused end-marker
+
+ # Crop and re-parse the resulting image to ensure we're generating the correct format
+ self._parse_image(img.crop(bbox), include_ascii_glyphs, unicode_glyphs)
+
+ def save_to_image(self, img_file: Path):
+ # Drop out if there's no image loaded
+ if self.image is None:
+ self.logger.error('No image is loaded.')
+ return
+
+ # Save the image to the supplied file
+ self.image.save(str(img_file))
+
+ def read_from_image(self, img_file: Path, include_ascii_glyphs: bool = True, unicode_glyphs: str = ''):
+ # Load and parse the supplied image file
+ self._parse_image(Image.open(str(img_file)), include_ascii_glyphs, unicode_glyphs)
+ return
+
+ def save_to_qff(self, format: Dict[str, Any], use_rle: bool, fp):
+ # Drop out if there's no image loaded
+ if self.image is None:
+ self.logger.error('No image is loaded.')
+ return
+
+ # Work out if we want to use RLE at all, skipping it if it's not any smaller (it's applied per-glyph)
+ (total_data_size, total_rle_data_size) = self._extract_glyphs(format)
+ if use_rle:
+ use_rle = (total_rle_data_size < total_data_size)
+
+ # For each glyph, work out which image data we want to use and append it to the image buffer, recording the byte-wise offset
+ img_buffer = bytes()
+ for _, glyph_entry in self.glyph_data.items():
+ glyph_entry['data_offset'] = len(img_buffer)
+ glyph_img_bytes = glyph_entry.image_compressed_bytes if use_rle else glyph_entry.image_uncompressed_bytes
+ img_buffer += bytes(glyph_img_bytes)
+
+ font_descriptor = QFFFontDescriptor()
+ ascii_table = QFFAsciiGlyphTableV1()
+ unicode_table = QFFUnicodeGlyphTableV1()
+ data_descriptor = QFFFontDataDescriptorV1()
+ data_descriptor.data = img_buffer
+
+ # Check if we have all the ASCII glyphs present
+ include_ascii_glyphs = all([chr(n) in self.glyph_data for n in range(0x20, 0x7F)])
+
+ # Helper for populating the blocks
+ for code_point, glyph_entry in self.glyph_data.items():
+ if ord(code_point) >= 0x20 and ord(code_point) <= 0x7E and include_ascii_glyphs:
+ ascii_table.add_glyph(glyph_entry)
+ else:
+ unicode_table.add_glyph(glyph_entry)
+
+ # Configure the font descriptor
+ font_descriptor.line_height = self.glyph_height
+ font_descriptor.has_ascii_table = include_ascii_glyphs
+ font_descriptor.unicode_glyph_count = len(unicode_table.glyphs.keys())
+ font_descriptor.is_transparent = False
+ font_descriptor.format = format['image_format_byte']
+ font_descriptor.compression = 0x01 if use_rle else 0x00
+
+ # Write a dummy font descriptor -- we'll have to come back and write it properly once we've rendered out everything else
+ font_descriptor_location = fp.tell()
+ font_descriptor.write(fp)
+
+ # Write out the ASCII table if required
+ if font_descriptor.has_ascii_table:
+ ascii_table.write(fp)
+
+ # Write out the unicode table if required
+ if font_descriptor.unicode_glyph_count > 0:
+ unicode_table.write(fp)
+
+ # Write out the palette if required
+ if format['has_palette']:
+ palette_descriptor = QGFFramePaletteDescriptorV1()
+
+ # Helper to convert from RGB888 to the QMK "dialect" of HSV888
+ def rgb888_to_qmk_hsv888(e):
+ hsv = rgb_to_hsv(e[0] / 255.0, e[1] / 255.0, e[2] / 255.0)
+ return (int(hsv[0] * 255.0), int(hsv[1] * 255.0), int(hsv[2] * 255.0))
+
+ # Convert all palette entries to HSV888 and write to the output
+ palette_descriptor.palette_entries = list(map(rgb888_to_qmk_hsv888, self.palette))
+ palette_descriptor.write(fp)
+
+ # Write out the image data
+ data_descriptor.write(fp)
+
+ # Now fix up the overall font descriptor, then write it in the correct location
+ font_descriptor.total_file_size = fp.tell()
+ fp.seek(font_descriptor_location, 0)
+ font_descriptor.write(fp)
diff --git a/lib/python/qmk/painter_qgf.py b/lib/python/qmk/painter_qgf.py
new file mode 100644
index 0000000000..71ce1f5a02
--- /dev/null
+++ b/lib/python/qmk/painter_qgf.py
@@ -0,0 +1,408 @@
+# Copyright 2021 Nick Brassel (@tzarc)
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+# Quantum Graphics File "QGF" Image File Format.
+# See https://docs.qmk.fm/#/quantum_painter_qgf for more information.
+
+from colorsys import rgb_to_hsv
+from types import FunctionType
+from PIL import Image, ImageFile, ImageChops
+from PIL._binary import o8, o16le as o16, o32le as o32
+import qmk.painter
+
+
+def o24(i):
+ return o16(i & 0xFFFF) + o8((i & 0xFF0000) >> 16)
+
+
+########################################################################################################################
+
+
+class QGFBlockHeader:
+ block_size = 5
+
+ def write(self, fp):
+ fp.write(b'' # start off with empty bytes...
+ + o8(self.type_id) # block type id
+ + o8((~self.type_id) & 0xFF) # negated block type id
+ + o24(self.length) # blob length
+ )
+
+
+########################################################################################################################
+
+
+class QGFGraphicsDescriptor:
+ type_id = 0x00
+ length = 18
+ magic = 0x464751
+
+ def __init__(self):
+ self.header = QGFBlockHeader()
+ self.header.type_id = QGFGraphicsDescriptor.type_id
+ self.header.length = QGFGraphicsDescriptor.length
+ self.version = 1
+ self.total_file_size = 0
+ self.image_width = 0
+ self.image_height = 0
+ self.frame_count = 0
+
+ def write(self, fp):
+ self.header.write(fp)
+ fp.write(
+ b'' # start off with empty bytes...
+ + o24(QGFGraphicsDescriptor.magic) # magic
+ + o8(self.version) # version
+ + o32(self.total_file_size) # file size
+ + o32((~self.total_file_size) & 0xFFFFFFFF) # negated file size
+ + o16(self.image_width) # width
+ + o16(self.image_height) # height
+ + o16(self.frame_count) # frame count
+ )
+
+
+########################################################################################################################
+
+
+class QGFFrameOffsetDescriptorV1:
+ type_id = 0x01
+
+ def __init__(self, frame_count):
+ self.header = QGFBlockHeader()
+ self.header.type_id = QGFFrameOffsetDescriptorV1.type_id
+ self.frame_offsets = [0xFFFFFFFF] * frame_count
+ self.frame_count = frame_count
+
+ def write(self, fp):
+ self.header.length = len(self.frame_offsets) * 4
+ self.header.write(fp)
+ for offset in self.frame_offsets:
+ fp.write(b'' # start off with empty bytes...
+ + o32(offset) # offset
+ )
+
+
+########################################################################################################################
+
+
+class QGFFrameDescriptorV1:
+ type_id = 0x02
+ length = 6
+
+ def __init__(self):
+ self.header = QGFBlockHeader()
+ self.header.type_id = QGFFrameDescriptorV1.type_id
+ self.header.length = QGFFrameDescriptorV1.length
+ self.format = 0xFF
+ self.flags = 0
+ self.compression = 0xFF
+ self.transparency_index = 0xFF # TODO: Work out how to retrieve the transparent palette entry from the PIL gif loader
+ self.delay = 1000 # Placeholder until it gets read from the animation
+
+ def write(self, fp):
+ self.header.write(fp)
+ fp.write(b'' # start off with empty bytes...
+ + o8(self.format) # format
+ + o8(self.flags) # flags
+ + o8(self.compression) # compression
+ + o8(self.transparency_index) # transparency index
+ + o16(self.delay) # delay
+ )
+
+ @property
+ def is_transparent(self):
+ return (self.flags & 0x01) == 0x01
+
+ @is_transparent.setter
+ def is_transparent(self, val):
+ if val:
+ self.flags |= 0x01
+ else:
+ self.flags &= ~0x01
+
+ @property
+ def is_delta(self):
+ return (self.flags & 0x02) == 0x02
+
+ @is_delta.setter
+ def is_delta(self, val):
+ if val:
+ self.flags |= 0x02
+ else:
+ self.flags &= ~0x02
+
+
+########################################################################################################################
+
+
+class QGFFramePaletteDescriptorV1:
+ type_id = 0x03
+
+ def __init__(self):
+ self.header = QGFBlockHeader()
+ self.header.type_id = QGFFramePaletteDescriptorV1.type_id
+ self.header.length = 0
+ self.palette_entries = [(0xFF, 0xFF, 0xFF)] * 4
+
+ def write(self, fp):
+ self.header.length = len(self.palette_entries) * 3
+ self.header.write(fp)
+ for entry in self.palette_entries:
+ fp.write(b'' # start off with empty bytes...
+ + o8(entry[0]) # h
+ + o8(entry[1]) # s
+ + o8(entry[2]) # v
+ )
+
+
+########################################################################################################################
+
+
+class QGFFrameDeltaDescriptorV1:
+ type_id = 0x04
+ length = 8
+
+ def __init__(self):
+ self.header = QGFBlockHeader()
+ self.header.type_id = QGFFrameDeltaDescriptorV1.type_id
+ self.header.length = QGFFrameDeltaDescriptorV1.length
+ self.left = 0
+ self.top = 0
+ self.right = 0
+ self.bottom = 0
+
+ def write(self, fp):
+ self.header.write(fp)
+ fp.write(b'' # start off with empty bytes...
+ + o16(self.left) # left
+ + o16(self.top) # top
+ + o16(self.right) # right
+ + o16(self.bottom) # bottom
+ )
+
+
+########################################################################################################################
+
+
+class QGFFrameDataDescriptorV1:
+ type_id = 0x05
+
+ def __init__(self):
+ self.header = QGFBlockHeader()
+ self.header.type_id = QGFFrameDataDescriptorV1.type_id
+ self.data = []
+
+ def write(self, fp):
+ self.header.length = len(self.data)
+ self.header.write(fp)
+ fp.write(bytes(self.data))
+
+
+########################################################################################################################
+
+
+class QGFImageFile(ImageFile.ImageFile):
+
+ format = "QGF"
+ format_description = "Quantum Graphics File Format"
+
+ def _open(self):
+ raise NotImplementedError("Reading QGF files is not supported")
+
+
+########################################################################################################################
+
+
+def _accept(prefix):
+ """Helper method used by PIL to work out if it can parse an input file.
+
+ Currently unimplemented.
+ """
+ return False
+
+
+def _save(im, fp, filename):
+ """Helper method used by PIL to write to an output file.
+ """
+ # Work out from the parameters if we need to do anything special
+ encoderinfo = im.encoderinfo.copy()
+ append_images = list(encoderinfo.get("append_images", []))
+ verbose = encoderinfo.get("verbose", False)
+ use_deltas = encoderinfo.get("use_deltas", True)
+ use_rle = encoderinfo.get("use_rle", True)
+
+ # Helper for inline verbose prints
+ def vprint(s):
+ if verbose:
+ print(s)
+
+ # Helper to iterate through all frames in the input image
+ def _for_all_frames(x: FunctionType):
+ frame_num = 0
+ last_frame = None
+ for frame in [im] + append_images:
+ # Get number of of frames in this image
+ nfr = getattr(frame, "n_frames", 1)
+ for idx in range(nfr):
+ frame.seek(idx)
+ frame.load()
+ copy = frame.copy().convert("RGB")
+ x(frame_num, copy, last_frame)
+ last_frame = copy
+ frame_num += 1
+
+ # Collect all the frame sizes
+ frame_sizes = []
+ _for_all_frames(lambda idx, frame, last_frame: frame_sizes.append(frame.size))
+
+ # Make sure all frames are the same size
+ if len(list(set(frame_sizes))) != 1:
+ raise ValueError("Mismatching sizes on frames")
+
+ # Write out the initial graphics descriptor (and write a dummy value), so that we can come back and fill in the
+ # correct values once we've written all the frames to the output
+ graphics_descriptor_location = fp.tell()
+ graphics_descriptor = QGFGraphicsDescriptor()
+ graphics_descriptor.frame_count = len(frame_sizes)
+ graphics_descriptor.image_width = frame_sizes[0][0]
+ graphics_descriptor.image_height = frame_sizes[0][1]
+ vprint(f'{"Graphics descriptor block":26s} {fp.tell():5d}d / {fp.tell():04X}h')
+ graphics_descriptor.write(fp)
+
+ # Work out the frame offset descriptor location (and write a dummy value), so that we can come back and fill in the
+ # correct offsets once we've written all the frames to the output
+ frame_offset_location = fp.tell()
+ frame_offsets = QGFFrameOffsetDescriptorV1(graphics_descriptor.frame_count)
+ vprint(f'{"Frame offsets block":26s} {fp.tell():5d}d / {fp.tell():04X}h')
+ frame_offsets.write(fp)
+
+ # Helper function to save each frame to the output file
+ def _write_frame(idx, frame, last_frame):
+ # If we replace the frame we're going to output with a delta, we can override it here
+ this_frame = frame
+ location = (0, 0)
+ size = frame.size
+
+ # Work out the format we're going to use
+ format = encoderinfo["qmk_format"]
+
+ # Convert the original frame so we can do comparisons
+ converted = qmk.painter.convert_requested_format(this_frame, format)
+ graphic_data = qmk.painter.convert_image_bytes(converted, format)
+
+ # Convert the raw data to RLE-encoded if requested
+ raw_data = graphic_data[1]
+ if use_rle:
+ rle_data = qmk.painter.compress_bytes_qmk_rle(graphic_data[1])
+ use_raw_this_frame = not use_rle or len(raw_data) <= len(rle_data)
+ image_data = raw_data if use_raw_this_frame else rle_data
+
+ # Work out if a delta frame is smaller than injecting it directly
+ use_delta_this_frame = False
+ if use_deltas and last_frame is not None:
+ # If we want to use deltas, then find the difference
+ diff = ImageChops.difference(frame, last_frame)
+
+ # Get the bounding box of those differences
+ bbox = diff.getbbox()
+
+ # If we have a valid bounding box...
+ if bbox:
+ # ...create the delta frame by cropping the original.
+ delta_frame = frame.crop(bbox)
+ delta_location = (bbox[0], bbox[1])
+ delta_size = (bbox[2] - bbox[0], bbox[3] - bbox[1])
+
+ # Convert the delta frame to the requested format
+ delta_converted = qmk.painter.convert_requested_format(delta_frame, format)
+ delta_graphic_data = qmk.painter.convert_image_bytes(delta_converted, format)
+
+ # Work out how large the delta frame is going to be with compression etc.
+ delta_raw_data = delta_graphic_data[1]
+ if use_rle:
+ delta_rle_data = qmk.painter.compress_bytes_qmk_rle(delta_graphic_data[1])
+ delta_use_raw_this_frame = not use_rle or len(delta_raw_data) <= len(delta_rle_data)
+ delta_image_data = delta_raw_data if delta_use_raw_this_frame else delta_rle_data
+
+ # If the size of the delta frame (plus delta descriptor) is smaller than the original, use that instead
+ # This ensures that if a non-delta is overall smaller in size, we use that in preference due to flash
+ # sizing constraints.
+ if (len(delta_image_data) + QGFFrameDeltaDescriptorV1.length) < len(image_data):
+ # Copy across all the delta equivalents so that the rest of the processing acts on those
+ this_frame = delta_frame
+ location = delta_location
+ size = delta_size
+ converted = delta_converted
+ graphic_data = delta_graphic_data
+ raw_data = delta_raw_data
+ rle_data = delta_rle_data
+ use_raw_this_frame = delta_use_raw_this_frame
+ image_data = delta_image_data
+ use_delta_this_frame = True
+
+ # Write out the frame descriptor
+ frame_offsets.frame_offsets[idx] = fp.tell()
+ vprint(f'{f"Frame {idx:3d} base":26s} {fp.tell():5d}d / {fp.tell():04X}h')
+ frame_descriptor = QGFFrameDescriptorV1()
+ frame_descriptor.is_delta = use_delta_this_frame
+ frame_descriptor.is_transparent = False
+ frame_descriptor.format = format['image_format_byte']
+ frame_descriptor.compression = 0x00 if use_raw_this_frame else 0x01 # See qp.h, painter_compression_t
+ frame_descriptor.delay = frame.info['duration'] if 'duration' in frame.info else 1000 # If we're not an animation, just pretend we're delaying for 1000ms
+ frame_descriptor.write(fp)
+
+ # Write out the palette if required
+ if format['has_palette']:
+ palette = graphic_data[0]
+ palette_descriptor = QGFFramePaletteDescriptorV1()
+
+ # Helper to convert from RGB888 to the QMK "dialect" of HSV888
+ def rgb888_to_qmk_hsv888(e):
+ hsv = rgb_to_hsv(e[0] / 255.0, e[1] / 255.0, e[2] / 255.0)
+ return (int(hsv[0] * 255.0), int(hsv[1] * 255.0), int(hsv[2] * 255.0))
+
+ # Convert all palette entries to HSV888 and write to the output
+ palette_descriptor.palette_entries = list(map(rgb888_to_qmk_hsv888, palette))
+ vprint(f'{f"Frame {idx:3d} palette":26s} {fp.tell():5d}d / {fp.tell():04X}h')
+ palette_descriptor.write(fp)
+
+ # Write out the delta info if required
+ if use_delta_this_frame:
+ # Set up the rendering location of where the delta frame should be situated
+ delta_descriptor = QGFFrameDeltaDescriptorV1()
+ delta_descriptor.left = location[0]
+ delta_descriptor.top = location[1]
+ delta_descriptor.right = location[0] + size[0]
+ delta_descriptor.bottom = location[1] + size[1]
+
+ # Write the delta frame to the output
+ vprint(f'{f"Frame {idx:3d} delta":26s} {fp.tell():5d}d / {fp.tell():04X}h')
+ delta_descriptor.write(fp)
+
+ # Write out the data for this frame to the output
+ data_descriptor = QGFFrameDataDescriptorV1()
+ data_descriptor.data = image_data
+ vprint(f'{f"Frame {idx:3d} data":26s} {fp.tell():5d}d / {fp.tell():04X}h')
+ data_descriptor.write(fp)
+
+ # Iterate over each if the input frames, writing it to the output in the process
+ _for_all_frames(_write_frame)
+
+ # Go back and update the graphics descriptor now that we can determine the final file size
+ graphics_descriptor.total_file_size = fp.tell()
+ fp.seek(graphics_descriptor_location, 0)
+ graphics_descriptor.write(fp)
+
+ # Go back and update the frame offsets now that they're written to the file
+ fp.seek(frame_offset_location, 0)
+ frame_offsets.write(fp)
+
+
+########################################################################################################################
+
+# Register with PIL so that it knows about the QGF format
+Image.register_open(QGFImageFile.format, QGFImageFile, _accept)
+Image.register_save(QGFImageFile.format, _save)
+Image.register_save_all(QGFImageFile.format, _save)
+Image.register_extension(QGFImageFile.format, f".{QGFImageFile.format.lower()}")
+Image.register_mime(QGFImageFile.format, f"image/{QGFImageFile.format.lower()}")
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