Add JAX typography, xector primitives, deferred effect chains, and GPU streaming
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- Add JAX text rendering with font atlas, styled text placement, and typography primitives - Add xector (element-wise/reduction) operations library and sexp effects - Add deferred effect chain fusion for JIT-compiled effect pipelines - Expand drawing primitives with font management, alignment, shadow, and outline - Add interpreter support for function-style define and require - Add GPU persistence mode and hardware decode support to streaming - Add new sexp effects: cell_pattern, halftone, mosaic, and derived definitions - Add path registry for asset resolution - Add integration, primitives, and xector tests Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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gilesb
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test_pil_options.py
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183
test_pil_options.py
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#!/usr/bin/env python3
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"""
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Explore PIL text options and test if we can match them.
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"""
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import numpy as np
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from PIL import Image, ImageDraw, ImageFont
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def load_font(font_name=None, font_size=32):
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"""Load a font."""
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candidates = [
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font_name,
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'/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf',
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'/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf',
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'/usr/share/fonts/truetype/dejavu/DejaVuSans-Oblique.ttf',
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]
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for path in candidates:
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if path is None:
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continue
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try:
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return ImageFont.truetype(path, font_size)
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except (IOError, OSError):
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continue
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return ImageFont.load_default()
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def test_pil_options():
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"""Test various PIL text options."""
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# Create a test frame
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frame_size = (600, 400)
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font = load_font(None, 36)
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font_bold = load_font('/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf', 36)
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font_italic = load_font('/usr/share/fonts/truetype/dejavu/DejaVuSans-Oblique.ttf', 36)
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tests = []
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# Test 1: Basic text
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def basic_text():
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img = Image.new('RGBA', frame_size, (0, 0, 0, 0))
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draw = ImageDraw.Draw(img)
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draw.text((20, 20), "Basic Text", fill=(255, 255, 255, 255), font=font)
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return img, "basic"
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tests.append(basic_text)
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# Test 2: Stroke/outline
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def stroke_text():
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img = Image.new('RGBA', frame_size, (0, 0, 0, 0))
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draw = ImageDraw.Draw(img)
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draw.text((20, 20), "Stroke Text", fill=(255, 255, 255, 255), font=font,
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stroke_width=2, stroke_fill=(255, 0, 0, 255))
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return img, "stroke"
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tests.append(stroke_text)
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# Test 3: Bold font
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def bold_text():
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img = Image.new('RGBA', frame_size, (0, 0, 0, 0))
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draw = ImageDraw.Draw(img)
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draw.text((20, 20), "Bold Text", fill=(255, 255, 255, 255), font=font_bold)
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return img, "bold"
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tests.append(bold_text)
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# Test 4: Italic font
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def italic_text():
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img = Image.new('RGBA', frame_size, (0, 0, 0, 0))
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draw = ImageDraw.Draw(img)
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draw.text((20, 20), "Italic Text", fill=(255, 255, 255, 255), font=font_italic)
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return img, "italic"
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tests.append(italic_text)
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# Test 5: Different anchors
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def anchor_text():
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img = Image.new('RGBA', frame_size, (0, 0, 0, 0))
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draw = ImageDraw.Draw(img)
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# Draw crosshairs at anchor points
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for x in [100, 300, 500]:
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draw.line([(x-10, 50), (x+10, 50)], fill=(100, 100, 100, 255))
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draw.line([(x, 40), (x, 60)], fill=(100, 100, 100, 255))
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draw.text((100, 50), "Left", fill=(255, 255, 255, 255), font=font, anchor="lm")
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draw.text((300, 50), "Center", fill=(255, 255, 255, 255), font=font, anchor="mm")
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draw.text((500, 50), "Right", fill=(255, 255, 255, 255), font=font, anchor="rm")
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return img, "anchor"
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tests.append(anchor_text)
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# Test 6: Multiline text
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def multiline_text():
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img = Image.new('RGBA', frame_size, (0, 0, 0, 0))
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draw = ImageDraw.Draw(img)
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draw.multiline_text((20, 20), "Line One\nLine Two\nLine Three",
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fill=(255, 255, 255, 255), font=font, spacing=10)
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return img, "multiline"
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tests.append(multiline_text)
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# Test 7: Semi-transparent text
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def alpha_text():
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img = Image.new('RGBA', frame_size, (0, 0, 0, 0))
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draw = ImageDraw.Draw(img)
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draw.text((20, 20), "Alpha 100%", fill=(255, 255, 255, 255), font=font)
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draw.text((20, 60), "Alpha 50%", fill=(255, 255, 255, 128), font=font)
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draw.text((20, 100), "Alpha 25%", fill=(255, 255, 255, 64), font=font)
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return img, "alpha"
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tests.append(alpha_text)
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# Test 8: Colored text
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def colored_text():
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img = Image.new('RGBA', frame_size, (0, 0, 0, 0))
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draw = ImageDraw.Draw(img)
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draw.text((20, 20), "Red", fill=(255, 0, 0, 255), font=font)
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draw.text((20, 60), "Green", fill=(0, 255, 0, 255), font=font)
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draw.text((20, 100), "Blue", fill=(0, 0, 255, 255), font=font)
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draw.text((20, 140), "Yellow", fill=(255, 255, 0, 255), font=font)
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return img, "colored"
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tests.append(colored_text)
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# Test 9: Large stroke
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def large_stroke():
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img = Image.new('RGBA', frame_size, (0, 0, 0, 0))
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draw = ImageDraw.Draw(img)
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draw.text((20, 20), "Big Stroke", fill=(255, 255, 255, 255), font=font,
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stroke_width=5, stroke_fill=(0, 0, 0, 255))
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return img, "large_stroke"
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tests.append(large_stroke)
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# Test 10: Emoji (if supported)
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def emoji_text():
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img = Image.new('RGBA', frame_size, (0, 0, 0, 0))
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draw = ImageDraw.Draw(img)
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try:
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# Try to find an emoji font
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emoji_font = None
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emoji_paths = [
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'/usr/share/fonts/truetype/noto/NotoColorEmoji.ttf',
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'/usr/share/fonts/truetype/ancient-scripts/Symbola_hint.ttf',
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]
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for p in emoji_paths:
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try:
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emoji_font = ImageFont.truetype(p, 36)
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break
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except:
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pass
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if emoji_font:
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draw.text((20, 20), "Hello 🎵 World 🎸", fill=(255, 255, 255, 255), font=emoji_font)
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else:
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draw.text((20, 20), "No emoji font found", fill=(255, 255, 255, 255), font=font)
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except Exception as e:
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draw.text((20, 20), f"Emoji error: {e}", fill=(255, 255, 255, 255), font=font)
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return img, "emoji"
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tests.append(emoji_text)
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# Run all tests
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print("PIL Text Options Test")
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print("=" * 60)
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for test_fn in tests:
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img, name = test_fn()
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fname = f"/tmp/pil_test_{name}.png"
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img.save(fname)
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print(f"Saved: {fname}")
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print("\nCheck /tmp/pil_test_*.png for results")
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# Print available parameters
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print("\n" + "=" * 60)
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print("PIL draw.text() parameters:")
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print(" - xy: position tuple")
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print(" - text: string to draw")
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print(" - fill: color (R,G,B) or (R,G,B,A)")
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print(" - font: ImageFont object")
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print(" - anchor: 2-char code (la=left-ascender, mm=middle-middle, etc.)")
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print(" - spacing: line spacing for multiline")
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print(" - align: 'left', 'center', 'right' for multiline")
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print(" - direction: 'rtl', 'ltr', 'ttb' (requires libraqm)")
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print(" - features: OpenType features list")
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print(" - language: language code for shaping")
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print(" - stroke_width: outline width in pixels")
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print(" - stroke_fill: outline color")
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print(" - embedded_color: use embedded color glyphs (emoji)")
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if __name__ == "__main__":
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test_pil_options()
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