81 Commits
Author SHA1 Message Date
Zach Nelson f2e3d117dc fix: Hanging indent causes overlapping words (#2324) 2026-06-11 18:23:49 +03:00
Zach Nelson 9202522a39 refactor: Drop redundant self-class prefix on applyDirectionToEntry (#2325)
## Summary

Non-functional cleanup: `ChapterHtmlSlimParser::` prefix is redundant
when calling `applyDirectionToEntry` within `ChapterHtmlSlimParser`
methods.

---

### AI Usage

Did you use AI tools to help write this code? _**NO**_
2026-06-11 10:38:00 -04:00
Zach Nelson 3a1e9f3023 refactor: Dedupe wifi scan in-place without std::map (#2262)
## Summary

`std::map` heap-allocates each node. Avoid using it for wifi SSID
dedupe, and instead just dedupe in-place with the existing `networks`
vector. Removed dead `ipAddress` member in `WifiNetworkInfo` struct.

---

### AI Usage

Did you use AI tools to help write this code? _**PARTIALLY**_
2026-06-07 08:27:20 -04:00
Zach Nelson b5b1f650e2 perf: Minimize string allocations in CSS parsing (#2263)
## Summary

Use `std::string_view` and case-insensitive comparisons to avoid string
allocations during CSS parsing.

**Hot path:** `resolveStyle` (called per HTML start tag during chapter
rendering) now does zero heap allocations. Previously it allocated a
normalized tag string, a vector of class strings, and a composite key
per class. For a chapter with ~2000 tags × 2 classes each, that's ~12
000 small short-lived allocations eliminated per page render — primarily
a heap-fragmentation win on the ESP32-C3's ~380KB RAM.

**Cold path:** CSS load no longer allocates per-rule selector vectors or
per-token strings; `splitOnChar`/`splitWhitespace` are gone, replaced
with callback-based tokenization (`forEachDelimitedToken`).

**Behavioral notes:**
- The selector `unordered_map` now uses an ASCII-case-insensitive
hash/equal. Selectors are stored with their original case rather than
pre-lowercased; the observable lookup result is unchanged.
- `stripTrailingImportant` is now case-insensitive (per CSS spec;
previously matched only lowercase `!important`).

**Cache compatibility:** `CSS_CACHE_VERSION` unchanged. Old caches
(lowercase selectors) load correctly under the new lookup; new caches
will contain verbatim-case selectors — both forms work.

---

### AI Usage

Did you use AI tools to help write this code? _**PARTIALLY**_
2026-06-04 18:05:32 -04:00
Zach Nelson 34e923d722 chore: Pin PNGdec lib_dep to 1.1.6 (#2154) 2026-05-26 01:06:24 -04:00
Zach Nelson 94d4b0c7bb ci: Cache PlatformIO packages between runs (#2142) 2026-05-25 17:03:10 -07:00
Zach Nelson 6dbfc29c7e test: Migrate unit tests to gtest, integrate with CI (#2144) 2026-05-25 15:51:53 -07:00
Zach Nelson e9120888fa refactor: Drop FsFile alias, use HalFile in downstream code (#2141) 2026-05-25 16:26:54 -04:00
Zach Nelson b53ac3d52c chore: Minor cleanup flagged by newer gcc (#2140)
## Summary

Minor cleanup flagged by newer gcc:
- Removed unused variables
- Removed unimplemented function declaration
- `static` -> `inline` to avoid per-TU duplication

---

### AI Usage

Did you use AI tools to help write this code? _**NO**_
2026-05-25 11:39:28 -05:00
938ca3fac1 chore: Update version to 1.3.0 (#1827)
## Summary

This release adds SD card fonts — the most-requested feature since
launch — brings the X3 to first-class status, redesigns the on-screen
keyboard, overhauls OPDS, and ships SD-card firmware updates. 144
changes from 53 contributors, 32 of whom are new to the project.

**🔠 SD Card Fonts**
Custom fonts are here. A complete font subsystem lets you install and
use fonts beyond the three built-in families. A new `.cpfont` binary
format packs multiple styles (regular, bold, italic, bold-italic) into a
single file per size, with on-demand glyph loading from the SD card. A
two-pass prewarm renderer bulk-reads glyphs per page, achieving
near-flash performance for Latin text and viable CJK rendering. Fonts
can be downloaded over WiFi directly from the device, uploaded via the
web interface, or copied manually to the SD card. The build pipeline
ships a 17-family font library (serif, sans, mono, accessibility) with
CI distribution via a dedicated crosspoint-fonts repository. As a bonus,
CJK characters no longer get spurious hyphens at line breaks, and an
advance-table cache eliminates 30+ second stalls during CJK section
indexing.

**📱 X3 Comes of Age**
The X3 graduates from initial bring-up to a proper target. Grayscale
antialiasing is sharper, EPUB images render correctly, OTA updates work,
and sleep screen dimensions are dialed in. The headline addition:
gyroscope-based tilt page turning via the QMI8658 IMU — tilt the device
to turn pages hands-free. SD-card firmware update support and X3
bootloader compatibility mean users can update without a USB connection.

**⌨️ Redesigned On-Screen Keyboard**
The keyboard has been completely redesigned with improved layout, better
key feedback, and a fix for the space key barely moving the cursor. Text
entry across WiFi setup, OPDS search, and KOSync login is noticeably
smoother.

**👁️ Focus Reading**
A new reading mode bolds the initial characters of each word (similar to
Bionic Reading) to create artificial fixation points, helping improve
reading speed and focus. The bolding ratio is 45%, with a minimum of 1
character and a maximum of 9, applied dynamically during indexing.

**📚 OPDS Overhaul**
OPDS gains in-catalog search with next/prev page navigation, support for
multiple servers, correct handling of relative paths and query
parameters (fixing CopyParty compatibility), and KOReader-compatible
download filenames.

**🔤 Text Rendering Refinements**
Combining marks (diacritics) now use font metrics for positioning
instead of heuristics, proportional numeral spacing is supported, and
differential rounding eliminates uneven inter-glyph gaps. Hyphenation
now recognizes ISO 639-2 language codes, nested block-level CSS styles
are tracked correctly, and horizontal CSS insets are capped at 2em to
prevent runaway margins. Bookerly has been replaced with Noto Serif for
licensing reasons.

**🎨 New Theme: RoundedRaff**
A new rounded theme joins the theme picker, with fixes for sleep cover
crop grid artifacts.

**🔋 Battery & Power**
Battery percentage smoothing on the X4 eliminates jittery readings. A
short press on the power button can be set to trigger a manual screen
refresh — handy for clearing ghosting.

**📶 WiFi & Networking**
WiFi connections now self-heal from transient drops without manual
intervention, and a dBm signal strength indicator appears during web
server sessions. WiFi networks can be edited directly from the web UI.

**🔄 KOSync**
Reading position sync is significantly more accurate. The old
character-offset approach frequently landed on the wrong paragraph after
syncing between devices — the new xpath-based mapping syncs at the
paragraph level, matching KOReader's own behavior. A separate fix
switches the HTTP layer to `esp_http_client`, and the reader now
releases ~65KB of EPUB heap before the TLS handshake — together these
eliminate the out-of-memory crashes that plagued KOSync on large books.

**🛡️ Stability**
Two memory leaks patched, a wild pointer crash in JPEGDEC MCU_SKIP
handling fixed, boot loops with large XTC files eliminated, legacy XTC
headers supported, the OTA updater now streams GitHub release JSON
instead of buffering it in RAM, and a JPEG downscaler y-axis scale
factor bug is corrected.

**🌐 Languages**
Slovenian is new. Russian, Ukrainian, Swedish, Italian, and Spanish
translations received significant updates.

---

Also in this release: **SD-card firmware updates without USB**, **file
extensions in the file browser**, **full path bar navigation**,
**end-of-book navigation improvements**, **XTC status bar**, **smarter
"Cover + Custom" sleep screens**, **set sleep cover from the BMP
viewer**, **orientation-aware popups**, **page turn buttons that follow
orientation**, **long-press delete for directories**, **context-aware
screenshot filenames with book title**, **crash reason displayed on
boot**, **empty line rendering in the TXT reader**, **wallpaper recency
buffer to prevent clustering**, **font family deletion from the
device**, **next/prev labels in the BMP viewer**, **non-breaking space
justification fix**, **README guidance for USB-locked third-party Xteink
units**, and a long tail of web UI polish, i18n memory optimizations,
and code quality improvements.

## What's Changed

### Features

* feat: add SD card font support with on-device download and web
management by @adriancaruana, @znelson, @itsthisjustin, @jpirnay, and
@mcrosson
* feat: Initial support for the x3 by @itsthisjustin in
https://github.com/crosspoint-reader/crosspoint-reader/pull/875
* feat: X3 grayscale antialiasing improvements by @juicecultus in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1607
* feat: X3 gyroscope-based tilt page turning via QMI8658 IMU by
@juicecultus in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1636
* feat(update): SD-card firmware update + X3 bootloader compatibility by
@eunchurn in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1786
* feat: self-heal from transient WiFi loss, add dBm indicator during
WebServerActivity by @jeremydk in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1780
* feat: edit wifi networks in webui by @osteotek in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1743
* feat: add OPDS search support & next/prev page navigation by @rxmmah
in https://github.com/crosspoint-reader/crosspoint-reader/pull/1462
* feat: Support for multiple OPDS servers by @osteotek in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1209
* feat: Adjust Navigation at End of Book by @nscheung in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1425
* feat: Display file extensions in File Browser by @CaptainFrito in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1019
* feat: show full path bar in file browser by @zgredex in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1411
* feat: enable manual screen refresh on power button short press by
@bdeshi in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1626
* feat: Rework "Cover + Custom" sleep screens to show covers only when
currently reading by @iandchasse in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1256
* feat: Set sleep cover from BMP viewer by @el in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1104
* feat: show crash reason on boot by @ngxson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1453
* feat: Support for proportional numeral spacing by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1414
* feat: add orientation-aware popups for reader activities by @mrtnvgr
in https://github.com/crosspoint-reader/crosspoint-reader/pull/1428
* feat: smooth battery percentage for x4 by @jonvex in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1635
* feat: context-aware screenshot filenames with book title by
@jonstieglitz in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1589
* feat(theme): add roundedraff theme and fix sleep cover crop grid
artifacts by @bunsoootchi in
https://github.com/crosspoint-reader/crosspoint-reader/pull/918
* feat: Page turn button orientation change by @mchuck in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1069
* feat: Status bar for XTC files by @leecming82 in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1849
* feat: enhance long press action to delete both files and directories
by @WuTofu in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1803
* feat: Added Slovenian translation by @thehijacker in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1551
* feat: focus reading by @vjapolitzer in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1670
* feat: add next / prev labels to bmp viewer by @Telemaniaka in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1852
* feat: add font family deletion functionality by @WuTofu in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1919
* feat: separate into "Download All" and "Update All" in font manager by
@WuTofu in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1955
* feat: verify CRC32 checksum for font files by @WuTofu in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1904
* feat: increase default weight of Bitter font for improved rendering by
@uxjulia in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1922
* feat: allow unnamed intervals by @steka in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1903

### Fixes

* fix: epub images not rendering correctly on x3 by @itsthisjustin in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1572
* fix: OTA update on x3 and progress bar on x4 and x3 by @itsthisjustin
in https://github.com/crosspoint-reader/crosspoint-reader/pull/1805
* fix: boot looping when opening large XTC files by @itsthisjustin in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1648
* fix: Wild pointer crash in JPEGDEC MCU_SKIP handling by @itsthisjustin
in https://github.com/crosspoint-reader/crosspoint-reader/pull/1627
* fix: two small memory leaks by @Uri-Tauber in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1628
* fix: use esp_http_client for KOSync to prevent TLS OOM on ESP32-C3 by
@trilwu in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1381
* fix: Read GH release JSON as stream in OTA updater by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1810
* fix: support legacy XTC file headers where pageTableOffset=48 by
@uxjulia in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1816
* fix: Use font metrics for combining mark positioning by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1310
* fix: Use differential rounding for consistent inter-glyph spacing by
@znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1413
* fix: Support hyphenation for EPUBs using ISO 639-2 language codes by
@znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1461
* fix: Track block style stack for nested styles by @daveallie in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1582
* fix: cap per-side horizontal CSS inset at 2em by @rhoopr in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1694
* fix: increase loadable epub size by @CSCMe in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1638
* fix: Switch to xpath map for paragraph level syncing in KOSync by
@itsthisjustin in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1686
* fix: free Epub RAM and simplify KOSync navigation via ActivityManager
by @wylanswets in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1860
* fix: improve KOSync bidirectional position matching accuracy by
@wylanswets in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1897
* fix: Fix failing very first wifi connection attempt by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1521
* fix: avoid skipping chapter after screenshot by @Mraulio in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1625
* fix: back navigation from BMPViewer by @Telemaniaka in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1597
* fix: Fix ghosting on exit of BMPViewer by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1432
* fix: make footnotes consider orientation for gutters by @Telemaniaka
in https://github.com/crosspoint-reader/crosspoint-reader/pull/1665
* fix: footnote link text by @steka in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1666
* fix: Erroneous navigation with long filenames in footnote links by
@CSCMe in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1723
* fix: prevent wallpaper clustering with 16-entry recency buffer by
@zgredex in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1606
* fix: webserver /delete API backward compatibility by @DianaNites in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1475
* fix: relative opds paths and query param with copyparty by @philips in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1535
* fix: use same file name as KOReader for OPDS downloads by @spfenwick
in https://github.com/crosspoint-reader/crosspoint-reader/pull/1286
* fix: pressing space barely moves input cursor (#1729) by @pablohc in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1733
* fix: keyboard feedback #1644 by @pablohc in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1697
* fix: pluralize folder/file counts correctly in file list summary by
@fain182 in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1701
* fix: rendering bug of scrollbar in RoundedRaff theme by @Uri-Tauber in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1814
* fix: two roundedraff bugs by @Uri-Tauber in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1851
* fix: overlap in download font list layout by @pablohc in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1900
* fix: remove duplicate 'Download Fonts' menu entry and improve
navigation by @zgredex in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1893
* fix: Add common ligatures to SD font conversion ranges by @znelson
* fix: capture instantiateVariableFont return value by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1911
* fix: Roundraff theme home menu offset with no recent books by @znelson
in https://github.com/crosspoint-reader/crosspoint-reader/pull/1845
* fix: Missing navigation button labels in Roundedraff theme by
@Uri-Tauber in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1905
* fix: gracefully resolve fonts missing variants by @Uri-Tauber in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1921
* fix: distribute justifyExtra to non-breaking space tokens by
@prawnwhoyawns in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1783
* fix: remove percent rendering from activities by @mcrosson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1901
* fix: Restore performance in fontconvert_sdcard.py by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1924
* fix: Prepare SD card font caches from txt reader by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1973
* fix: make script help paths lightweight by @sabraman in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1937
* fix: Replaced Bookerly with Noto Serif for licensing reasons by
@znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1736
* fix: incorrect y-axis scale factor in jpeg nearest-neighbor downscaler
by @WuTofu in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1807
* fix: display empty lines in txt reader by @Uri-Tauber in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1841
* fix: short-press power action triggered after screenshot combo release
by @pablohc in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1853
* fix: correct Russian auto-turn translations by @a-ignatev in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1566
* fix: Update Ukrainian translations for footnotes (issue 1409) by
@mirus-ua in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1585
* fix: missing swedish translations by @steka in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1667
* fix: Add swedish keyboard translations by @steka in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1726
* fix: swedish translations by @steka in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1762
* fix: swedish translation by @steka in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1829
* fix: swedish translation by @steka in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1888
* fix: Polish translation by @th0m4sek in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1909
* fix: Ukrainian-translation by @KymAndriy in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1946
* fix: Ukrainian translation by @KymAndriy in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1939
* fix: python requirements files by @steka in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1768
* fix: missing requirement by @steka in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1896
* fix: Use LOG_ macros in loc functions by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1794

### Internal

* refactor: redesign on-screen keyboard by @pablohc in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1644
* refactor: replace picojpeg with JPEGDEC for cover art conversion by
@jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1517
* refactor: Refactor drawArc / fillArc for faster execution by @jpirnay
in https://github.com/crosspoint-reader/crosspoint-reader/pull/1540
* perf: replace i18n pointer tables with offset tables, strip unused
strings by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1408
* refactor: Store only unique localization strings in offset buffers by
@znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1802
* refactor: Move language setting into JSON settings by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1796
* refactor: Use C++20 'requires' in ActivityResult constructor by
@znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1420
* refactor: Use default member initializers for JpegContext and
PngContext by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1435
* refactor: logPrintf and predefined log level strings by @CSCMe in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1546
* refactor: RAII scoped open/close for ZipFile by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1433
* refactor: Deduplicated BMP header writing in Xtc by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1439
* refactor: Added shared XML parser teardown helper by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1438
* refactor: Removed redundant FsFile close() calls by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1434
* refactor: Deduplicate battery drawing code and fix Lyra charging
indicator by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1437
* refactor: Deduplicate Roundraff battery drawing by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1847
* refactor: Simplify sort in GfxRenderer::fillPolygon by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1817
* refactor: Avoid vector for page turn rates list by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1818
* refactor: Use std::size instead of sizeof/sizeof by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1819
* refactor: Use fixed-size integers for BookMetadataCache data by
@znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1844
* refactor: Simplify isReaderActivity bookkeeping by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1838
* refactor: Simplify XtcReaderActivity with detectPageTurn by @znelson
in https://github.com/crosspoint-reader/crosspoint-reader/pull/1837
* refactor: change ukrainian translation to adaptation and add missing
lines by @KymAndriy in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1828
* chore: drop JPEGDEC patch in favour of upstream fix by @martinbrook in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1465
* chore: clang-format.fix.ps1 script: Add .venv to list of path
exclusions by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1515
* chore: Updating sleep screen dimensions for X3 by @jensechu in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1688
* chore: Clarify X3 RTC in SCOPE.md by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1687
* chore: Improved Italian translations by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1685
* chore: change ukrainian translation to adaptation by @KymAndriy in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1684
* chore: Update spanish.yaml by @mvidelatraduc in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1717
* chore: One Italian translation tweak by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1718
* chore: git pre-commit hook for format fix by @osteotek in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1730
* chore: Update SDK to fork in CrossPoint org by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1836
* chore: Added RAM to firmware_size_history.py script by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1830
* chore: Updated docs to reflect DESTRUCTOR_CLOSES_FILE=1 by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1878
* feat: cap compressed group size at 64 KB by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1913
* fix: build-script bug fixes for fontconvert{,_sdcard}.py by @jpirnay
in https://github.com/crosspoint-reader/crosspoint-reader/pull/1910
* feat: include short SHA in CROSSPOINT_VERSION by @osteotek in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1728
* feat: show long branch names by @steka in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1727
* feat: enable pio build cache by @Uri-Tauber in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1769
* style: put page name first in browser titles by @fain182 in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1703
* style: unify page headers across web UI by @fain182 in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1702
* style: move file type badges into Type column by @fain182 in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1793
* style: align action buttons vertically with page title by @fain182 in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1795
* docs: Update README with firmware flashing instructions by @ryneches
in https://github.com/crosspoint-reader/crosspoint-reader/pull/1654
* docs: fix typos by @kianmeng in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1705
* docs: update README.md to reflect the current state of crosspoint by
@Uri-Tauber in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1812
* docs: Add documentation for USB-locked Xteink devices by
@itsthisjustin in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1990
* docs: expand first use of OPDS acronym and provide a wikipedia link by
@sizezero in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1824
* docs: fix KOReader sync guide link by @sabraman in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1930
* docs: fix hyphenation updater script name by @sabraman in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1931
* fix: sd font download urls in docs by @mcrosson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1945
* fix: sd font folder paths in documentation by @mcrosson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1944
* chore: Add verbose mode to build-sd-fonts.py by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1923

## New Contributors
* @a-ignatev made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1566
* @CSCMe made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1546
* @thehijacker made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1551
* @Telemaniaka made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1597
* @Mraulio made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1625
* @rxmmah made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1462
* @bdeshi made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1626
* @DianaNites made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1475
* @ryneches made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1654
* @zgredex made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1411
* @jonvex made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1635
* @KymAndriy made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1684
* @jensechu made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1688
* @kianmeng made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1705
* @philips made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1535
* @fain182 made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1701
* @mvidelatraduc made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1717
* @bunsoootchi made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/918
* @rhoopr made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1694
* @spfenwick made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1286
* @trilwu made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1381
* @jonstieglitz made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1589
* @uxjulia made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1816
* @mchuck made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1069
* @sizezero made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1824
* @leecming82 made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1849
* @jeremydk made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1780
* @WuTofu made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1803
* @wylanswets made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1860
* @sabraman made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1930
* @prawnwhoyawns made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1783
* @mcrosson made their first contribution as co-author on SD card font
support

**Full Changelog**:
https://github.com/crosspoint-reader/crosspoint-reader/compare/1.2.0...release/1.3.0

---------

Co-authored-by: Justin Mitchell <justin@jmitch.com>
Co-authored-by: Chun Ming Lee <95391408+leecming82@users.noreply.github.com>
Co-authored-by: Uri Tauber <uritaube@gmail.com>
2026-05-15 15:51:43 -05:00
Zach NelsonandJustin Mitchell b186529120 fix: Prepare SD card font caches from txt reader (#1973)
## Summary

SD card font fixes:
- `TxtReaderActivity` needs to call `renderer.ensureSdCardFontReady` to
build the advance lookup table to support rendering with SD card fonts.
This revealed that `TxtReaderActivity` was inconsistently performing
layout with `getTextWidth`, when the renderer actually uses
`getTextAdvanceX`, which can lead to minor inconsistencies in alignment.
- Avoid allocating one big `allText` string in
`ParsedText::layoutAndExtractLines`. Instead, pass the vector of word
strings directly to `SdCardFont::buildAdvanceTable`, where the algorithm
just needs to iterate codepoints anyway.

---

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---------

Co-authored-by: Justin Mitchell <justin@jmitch.com>
2026-05-15 09:50:41 -05:00
Zach Nelson aa43bd3569 chore: Removed unused icon header files (#1975)
## Summary

Deleted two unused header files containing binary icon data.

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2026-05-14 07:34:35 -05:00
Zach Nelson 8377ac9e31 refactor: Added utils for non-throwing memory allocation and scoped cleanup (#1832)
## Summary

Pared down version of #1418.

Following up on b5df6cb2b5. Added
lib/Memory/Memory.h with:
- `makeUniqueNoThrow<T>` a `nothrow` wrapper for `std::make_unique` that
return `nullptr` on OOM instead of calling `abort()` (the behavior of
bare `new` with `-fno-exceptions`)
- `ScopedCleanup` a helper to call a cleanup lambda on scope exit.

These utilities help to write code that handles OOM scenarios
gracefully, and consistently cleans up resources on scope exit.

JpegToBmpConverter.cpp has been converted to use these utilities. Other
files can be converted later.

This will simplify some of the SD card font resource management in
#1327.

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2026-05-13 21:19:47 -05:00
Zach Nelson 30b14f2ecf refactor: Removed SdCardFontGlobals.h (#1962)
## Summary

First of several changes to decouple and clean up SD card fonts
integration. This change eliminates SdCardFontGlobals.h:
- Simply declare the `extern SdCardFontSystem sdFontSystem` in
SdCardFontSystem.h.
- `ActivityManager::goToReader` should not care about loading SD card
fonts. Instead do the same work in `ReaderActivity::onEnter`, after the
previous activity has exited and after ReaderActivity has validated the
file path.

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2026-05-13 08:26:56 -05:00
Zach Nelson 6f7f4c592a refactor: Eliminated relative path includes (#1961)
## Summary

Relative includes can hide inappropriate dependency relationships. In
this case, I found that lib/KOReaderSync/KOReaderCredentialStore.cpp was
dependent on src/JsonSettingsIO.h -- a lib -> app dependency, the
opposite direction dependencies should flow in this project.

This change replaces all relative includes with root-relative includes,
and corrects the KOReaderCredentialStore dependency by moving its JSON
settings serialization local to the KOReaderSync library.

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2026-05-13 08:26:30 -05:00
Zach Nelson 63d5094f2e Revert "feat: closest-pt size selection instead of ordinal slot" (#1949)
Reverts crosspoint-reader/crosspoint-reader#1912

This was meant to be more robust with partial SD card fonts, but causes
trouble for folks using custom font sizes. We need a better approach to
decouple numeric font sizes from S/M/L/XL settings.
2026-05-11 12:44:52 -05:00
Zach Nelson 2ff63884d6 fix: Restore performance in fontconvert_sdcard.py (#1924)
## Summary

#1910 caused a massive performance degradation in the way rasterized
glyph buffers were handled during pixel iteration. This change restores
the original performance characteristics so the font generation job
finishes in a reasonable amount of time.

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2026-05-10 12:01:02 -05:00
Zach Nelson 74b8cac928 chore: Add verbose mode to build-sd-fonts.py (#1923)
## Summary

One of the recent font conversion script changes obliterated
performance. Add a verbose mode to build-sd-fonts.py to help diagnose
problems. Changed the CI process to use verbose mode.

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2026-05-10 11:55:57 -05:00
Zach Nelson 628794f8b8 fix: Add common ligatures to SD font conversion ranges 2026-05-09 11:09:58 -05:00
Zach Nelson a48ad3cd61 chore: Updated docs to reflect DESTRUCTOR_CLOSES_FILE=1 (#1878)
## Summary

Follow-up to 23aad213 which removed redundant FsFile close() calls from
the codebase. This updates CLAUDE.md so AI agents and contributors stop
reintroducing them. Adds the build flag to the Critical Build Flags
section with a clear "do not add file.close() on local FsFile variables"
rule, enumerates the three cases where explicit close is still required
(close before Storage.remove, close before reopening the same variable,
and member variables that outlive function scope), and updates the
HalStorage example, RAII guidance, and Activity Lifecycle sections to be
consistent with the new policy.

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2026-05-08 12:29:21 -05:00
Zach Nelson e841c84194 refactor: Deduplicate Roundraff battery drawing (#1847)
## Summary

Deduplicated battery drawing code for Roundraff theme with other themes.

Now `BaseTheme` provides non-virtual `drawBatteryLeft` and
`drawBatteryRight` methods, which use a shared static
`drawBatteryOutline` implementation, and defer to a virtual
`fillBatteryIcon` implementation. In Classic and Roundraff
`fillBatteryIcon` uses a solid fill, while Lyra and Lyra Extended use a
segmented fill.

The charging indicator inside the battery was missing for Roundraff, but
is now consistent with other themes because of the shared drawing
implementation.

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2026-05-07 16:57:33 -05:00
Zach Nelson 83f0cee565 fix: Roundraff theme home menu offset with no recent books (#1845)
## Summary

With the Roundraff theme selected and no recent books, the home screen
menu shows a "Continue Reading" option and menu handling is offset by
one ("Continue Reading" actually does "Browse Files", "File Transfer"
actually does "Settings", etc.) Simple fix here is to omit the "Continue
Reading" menu item when there are no recent books.

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2026-05-07 08:17:51 -05:00
Zach Nelson 11bc36ebb5 refactor: Use fixed-size integers for BookMetadataCache data (#1844) 2026-05-07 09:03:51 +03:00
Zach Nelson 395e68ea2b refactor: Simplify isReaderActivity bookkeeping (#1838)
## Summary

Before, any sub-activity of a reader activity needed to override
`isReaderActivity` to maintain correct bookkeeping through
`ActivityManager::isReaderActivity`. We could easily miss this in any
new sub-activities. Instead, simplify so each reader activity correctly
reports and then `ActivityManager` checks for any reader activity in its
stack.

---

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2026-05-06 09:57:22 -05:00
Zach Nelson cfe3a948a0 refactor: Simplify XtcReaderActivity with detectPageTurn (#1837)
## Summary

Simplify duplicated code in `XtcReaderActivity` to use
`ReaderUtils::detectPageTurn`. This implementation is now shared with
`EpubReaderActivity` and `TxtReaderActivity`. Also deduplicated the
chapter skip time constant.

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2026-05-06 09:57:06 -05:00
Zach Nelson 4ea938b709 chore: Update SDK to fork in CrossPoint org (#1836)
## Summary

Update the Open X4 SDK to point to the CrossPoint organization fork.
This allows us to take SDK changes without being blocked on the upstream
repository.

---

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2026-05-06 09:56:35 -05:00
Zach Nelson 78625afe76 chore: Added RAM to firmware_size_history.py script (#1830)
## Summary

Added RAM delta output to firmware_size_history.py output, e.g.:

```
 % scripts/firmware_size_history.py --commits adcd796 8e18472
[info] Will restore to 'sd-card-fonts' when finished.
[info] Stashing uncommitted changes...
[info] Building 2 commits...

[1/2] adcd7961c9 feat: self-heal from transient WiFi loss, add dBm indicator during WebServerActivity  (#1780)
  Building (env: default)...
  Flash: 5,751,209, RAM: 97,996 bytes

[2/2] 8e184724d1 Merge branch 'master' into sd-card-fonts
  Building (env: default)...
  Flash: 5,762,395, RAM: 97,988 bytes

[info] Restoring 'sd-card-fonts'...
[info] Restoring stashed changes...

Commit            Flash    Delta          RAM    Delta  Title
──────────  ───────────  ───────  ───────────  ───────  ────────────────────────────────────────
adcd7961c9    5,751,209                97,996           feat: self-heal from transient WiFi loss, add dBm indicator during WebServerActivity  (#1780)
8e184724d1    5,762,395  +11,186       97,988       -8  Merge branch 'master' into sd-card-fonts
```

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2026-05-04 22:11:40 -05:00
Zach Nelson 333286acfc refactor: Use std::size instead of sizeof/sizeof (#1819)
## Summary

Simplify code calculating compile-time array sizes with
`sizeof(array)/sizeof(element)` to use `std::size`.

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2026-05-04 12:41:27 -05:00
Zach Nelson 6c4ae7c41a refactor: Avoid vector for page turn rates list (#1818)
## Summary

Small cleanup to avoid a dynamically allocated static structure for auto
page-turn rate values.

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2026-05-04 08:45:44 -05:00
Zach Nelson a5fac320ab refactor: Simplify sort in GfxRenderer::fillPolygon (#1817)
## Summary

Small simplification to node sorting algorithm in
GfxRenderer::fillPolygon.

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2026-05-04 08:45:15 -05:00
Zach Nelson aa7a31b3db fix: Read GH release JSON as stream in OTA updater (#1810)
## Summary

The GitHub recent release API returns lots of data, including the full
release notes. For 1.2.0, that data is 30,530 bytes. The existing
OtaUpdater HTTP handler and single-buffer JSON parsing can't reliably
handle that much data in the constrained ESP32 environment.

This change does a few things:
1. Adds a very simple lib/JsonParser/StreamingJsonParser.cpp with
SAX-style callbacks to read JSON data incrementally.
2. Adds a very simple lib/JsonParser/ReleaseJsonParser.cpp building on
StreamingJsonParser, which specifically parses the GitHub release JSON
for the release version, URL, and size.
3. Updates OtaUpdater.cpp to use an instance of ReleaseJsonParser to
incrementally parse the large response it may receive from GitHub.

Building from this commit while overriding my local version to 1.1.9, I
was able to run the OTA update process ~5 times in a row successfully.

Fixes #1561 (second part, after #1805).

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2026-05-03 20:48:06 -05:00
Zach Nelson 64ecfe2ef3 refactor: Store only unique localization strings in offset buffers (#1802)
## Summary

Omit any duplicate strings in non-English localization lookup tables.
For non-English lookup offsets, tag bit 15 to indicate the offset
applies to the English localization table.

Saves 18,766 bytes of flash.

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2026-05-02 16:14:12 -05:00
Zach Nelson b25389b43e refactor: Move language setting into JSON settings (#1796)
## Summary

Another follow up to #1408. That PR revised the language.bin settings
file to version 2. After merging, it occurred to me that it would make
more sense to have the language inside the overall settings.json file,
easy for users to see and change directly.

This change adds migration from language.bin to settings.json. It only
migrates from the pre-#1408 v1 language.bin format, because v2 has only
been in for a couple of commits and I don't think we need long-term
maintenance code to handle it.

#1408 had a potential long-term maintenance issue for migration. It
assumed that the enum order of languages never changes, only grows. So,
e.g. "Portuguese (Portugal)" could never be added next to "Portuguese
(Brazil)", only appended. This change includes a hardcoded frozen
ordering of the language indices as they existed at 2f969a9, and
migrates to storing a language code string in the settings.json instead
for future reordering flexibility.

Similar to the settings.bin to settings.json migration, which renames
settings.bin to settings.bin.bak, this change renames language.bin to
language.bin.bak after adding the language setting to settings.json.

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2026-05-01 09:39:28 -05:00
Zach Nelson ae865f6d08 fix: Use LOG_ macros in loc functions (#1794)
## Summary

Quick follow up to #1408. We overlooked the fact that the change wasn't
using the LOG_ macros. Also, removed redundant file.close() calls, as in
23aad21.

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2026-04-30 15:47:39 -05:00
Zach Nelson 15e0d39d2c Revert "feat: Add royalty.dev funding integration" (#1745)
Reverts crosspoint-reader/crosspoint-reader#1741

I don't entirely understand Royalty.dev and want to vet this further.
2026-04-22 16:29:09 -05:00
Zach Nelson c5f82709c0 fix: Replaced Bookerly with Noto Serif for licensing reasons (#1736)
## Summary

Fixes #258. Bookerly is not licensed for use in CrossPoint. Switched to
Google's open Noto Serif font.

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2026-04-21 17:51:07 -05:00
Zach Nelson 5e26baef63 chore: One Italian translation tweak (#1718)
## Summary

Following up on #1685. One tweaked string confirmed by @alan0ford.

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2026-04-21 15:20:41 -05:00
Zach Nelson 64f5ef018a feat: Support for proportional numeral spacing (#1414)
## Summary

**What is the goal of this PR?**

Reading a book with frequent numbers, I noticed that the spacing between
numeral glyphs was strangely large. This was because Bookerly and Noto
Sans default to tabular figures, where every digit gets an identical
advance width. This is designed for column alignment in spreadsheets,
but in rendering prose it produces visually wide gaps between digits.

This change adds a `--pnum` flag to fontconvert.py that applies the
font's OpenType `pnum` (proportional numerals) feature during
conversion. When active, the converter:
- Parses the GSUB table for pnum SingleSubst lookups
- Resolves substitute glyph indices via fonttools' glyph order
- Loads the proportional alternate glyphs instead of the tabular
defaults
- Includes substitute glyph names in kern pair extraction, so kerning
data that references proportional alternates is captured

Bookerly's proportional alternates also carry digit-digit and
digit-punctuation kerning that the tabular glyphs lack (e.g., at 16pt
7->4 at -1.69px, 7->. at -2.31px, 7->1 at +1.00px).

Noto Sans gains proportional advances but no new kerning (its
proportional glyphs have no kern class data in the font).

OpenDyslexic is unaffected. Its `cmap` already points to proportional
glyphs, so `--pnum` is a no-op. `--pnum` is intentionally omitted from
OpenDyslexic in the build script for deliberately uniform digit spacing
as an accessibility choice.

UI fonts (Ubuntu, notosans_8) also omit `--pnum` to preserve tabular
alignment for page numbers, battery percentages, etc.

| Before | After |
| -- | -- |
| <img
src="https://github.com/user-attachments/files/26042238/screenshot-31673.bmp"
width="300" /> | <img
src="https://github.com/user-attachments/files/26042241/screenshot-124075.bmp"
width="300" /> |

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2026-04-18 17:03:04 -05:00
Zach Nelson 3cdfc6c781 chore: Improved Italian translations (#1685)
## Summary

Improved Italian translations provided by @alan0ford, closes #1578.

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2026-04-18 16:30:46 -05:00
Zach Nelson a888978f95 chore: Clarify X3 RTC in SCOPE.md (#1687)
## Summary

Clarify that X3 device has a reliable RTC chip, so clock feature can be
in-scope depending on device.

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2026-04-17 18:39:06 -05:00
Zach Nelson ce1756e36f refactor: Added shared XML parser teardown helper (#1438)
## Summary

**What is the goal of this PR?**

Added `destroyXmlParser()` helper to replace the repeated 4-line parser
cleanup block (stop, clear callbacks, free, null) that was copyied
across 6 XML parser files.

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2026-04-16 19:42:05 -05:00
Zach Nelson 1bd7a1de67 refactor: Deduplicate battery drawing code and fix Lyra charging indicator (#1437)
## Summary

**What is the goal of this PR?**

Following up on #1427:
- Extracted shared battery drawing logic, including lightning bolt, to
reduce duplication.
- In Lyra with segmented battery the lightning bolt was hard to see, so
when charging Lyra now uses a solid battery fill.

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Did you use AI tools to help write this code? _**PARTIALLY**_
2026-04-14 17:05:06 -05:00
Zach Nelson 23aad213fc refactor: Removed redundant FsFile close() calls (#1434)
## Summary

**What is the goal of this PR?** (e.g., Implements the new feature for
file uploading.)

`DESTRUCTOR_CLOSES_FILE=1` is set in platformio.ini, which makes SdFat's
FsBaseFile destructor call close() automatically when a file goes out of
scope.

Three categories of file close calls remain untouched:
1. Close before Storage.remove() on the same path: ScreenshotUtil.cpp
closes the file before deleting it on write error. The remove might fail
if the file is still open.
2. Close before reopening the same variable: Epub.cpp writes a temp
NCX/nav file, closes it, then reopens it for reading. The
RecentBooksStore.cpp close before saveToFile() is the same pattern, it
rewrites the same file.
3. Close on member variables: BookMetadataCache.cpp (bookFile,
spineFile, tocFile), Section.cpp (file), XtcParser.cpp (m_file),
ZipFile.cpp (file). These persist beyond any single function scope, so
the destructor timing doesn't match the intended close point.

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**PARTIALLY**_
2026-04-14 16:41:05 -05:00
Zach NelsonandUri Tauber 075ad7d021 fix: Use font metrics for combining mark positioning (#1310)
## Summary

**What is the goal of this PR?** (e.g., Implements the new feature for
file uploading.)

Combining diacritical marks (U+0300–U+036F) were positioned using a
heuristic that centered them at the midpoint of the base glyph's
**advance width**. This worked acceptably for Bookerly but produced
visibly off-center marks for Noto Sans due to a fundamental difference
in how the two fonts design their combining mark metrics.

Builds on the work of #1037.

## The problem

The two built-in body fonts encode combining mark `left` offsets with
very different conventions:

| Mark | Bookerly `left` | Noto Sans `left` |
|---|---|---|
| U+0301 (acute) | -2 | -10 |
| U+0300 (grave) | -5 | -15 |
| U+0302 (circumflex) | -5 | -5 |
| U+0323 (dot below) | -2 | -11 |

Noto Sans uses large negative `left` values because its marks are
designed for placement at the post-advance cursor position, with `left`
pulling the bitmap back over the base glyph. Bookerly uses small offsets
because its marks sit closer to the glyph origin. The old `advance/2`
centering split the difference poorly — it happened to land close to
correct for Bookerly but placed Noto Sans marks roughly 6px left of
center on a typical lowercase letter.

There was also a bug in the vertical gap heuristic. It unconditionally
computed a `raiseBy` value to prevent above-baseline marks from
colliding with tall base glyphs, but it applied the same logic to
**below-baseline** marks like cedilla (U+0327), dot below (U+0323), and
ogonek (U+0328). For those marks, the math produced a large positive
raise (e.g., 24px for dot-below on 'a'), launching them above the
x-height instead of keeping them below the baseline.

## The fix

**Horizontal positioning**: Instead of centering at `advance/2`, align
the mark bitmap's visual midpoint directly over the base glyph bitmap's
visual midpoint. This uses the base glyph's actual `left` and `width`
rather than its advance width, producing correct results regardless of
how the font encodes its mark offsets.

**Vertical positioning**: The raise heuristic now checks `markTop -
markHeight > 0` and skips below-baseline marks entirely, leaving them at
their font-designed position.

**Consolidation**: The shared math is extracted into two `constexpr`
helpers (`combiningMark::centerOver` and
`combiningMark::raiseAboveBase`) in `EpdFontData.h`, eliminating the
previously triplicated inline calculations across `drawText`,
`drawTextRotated90CW`, and `getTextBounds`. The `MIN_COMBINING_GAP_PX`
constant is also centralized as `combiningMark::MIN_GAP_PX`.

| Before | After |
| -- | -- |
| <img
src="https://github.com/user-attachments/files/25752257/before-noto.bmp"
width="250" /> | <img
src="https://github.com/user-attachments/files/25752258/after-noto.bmp"
width="250" /> |
| <img
src="https://github.com/user-attachments/files/25752259/before-bookerly.bmp"
width="250" /> | <img
src="https://github.com/user-attachments/files/25752260/after-bookerly.bmp"
width="250" /> |

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**YES to analyze
differences between Noto Sans and Bookerly font metrics**_

---------

Co-authored-by: Uri Tauber <142022451+Uri-Tauber@users.noreply.github.com>
2026-04-14 14:35:50 -05:00
Zach Nelson 5ba85290ab refactor: Deduplicated BMP header writing in Xtc (#1439)
## Summary

**What is the goal of this PR?**

Replaced manual 1-bit BMP header logic in `Xtc::generateCoverBmp()` and
`Xtc::generateThumbBmp()` with calls to the existing `createBmpHeader()`
utility. Added a `BmpRowOrder` enum and param to support the top-down
row order of XTC cover images.

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**PARTIALLY**_
2026-04-10 00:35:43 +03:00
Zach Nelson b3b43bb373 refactor: RAII scoped open/close for ZipFile (#1433)
## Summary

**What is the goal of this PR?**

Added `ScopedOpenClose` RAII guard to eliminate repetitive
`wasOpen`/`close()` boilerplate across all ZipFile methods.

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**PARTIALLY**_
2026-04-09 21:28:31 +03:00
Zach Nelson 1398aeb1ed fix: Use differential rounding for consistent inter-glyph spacing (#1413)
## Summary

**What is the goal of this PR?**

A tweak to the fixed-point x-advance and kerning calculations to ensure
that the spacing between any two glyphs is always calculated
consistently.

I noticed that sometimes I'd see common character pairs like "oo" more
than once on a page, and the distance between the two snapped to
different pixels depending on the running accumulated error for the line
of text.

This change uses a differential rounding approach where each glyph's
x-advance plus the kerning relative to the next glyph are combined in
fixed-point precision, then snapped to a pixel to draw the next glyph.
This results in a consistent inter-glyph spacing any time the same two
glyphs show up adjacent to each other, regardless of the accumulated
error across the line.

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

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2026-04-07 22:20:50 -05:00
Zach Nelson f429f9035c refactor: Use default member initializers for JpegContext and PngContext (#1435)
## Summary

**What is the goal of this PR?**

Replace verbose constructor initializer lists with in-class default
member initializers in JpegContext and PngContext

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**NO**_
2026-04-07 09:13:21 -05:00
Zach Nelson 11984f8fef refactor: Use C++20 'requires' in ActivityResult constructor (#1420)
## Summary

**What is the goal of this PR?**

Replace SFINAE std::enable_if_t with a C++20 `requires` clause for
clearer constraint expression and better compiler diagnostics on
mismatch.

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**NO**_
2026-04-07 08:30:52 -05:00
Zach Nelson 1c13331189 fix: Support hyphenation for EPUBs using ISO 639-2 language codes (#1461)
## Summary

EPUBs that use ISO 639-2 three-letter language codes in their
`dc:language` metadata (e.g. `<dc:language>eng</dc:language>`) got no
hyphenation. The hyphenator registry only matched ISO 639-1 two-letter
codes (`"en"`, `"fr"`, etc.), so `"eng"` produced a null hyphenator and
every word in the book was treated as unhyphenatable.
Added a normalization step in `hyphenatorForLanguage` that maps ISO
639-2 codes (both bibliographic and terminological variants) to their
two-letter equivalents before the registry lookup.

Discovered via *Project Hail Mary* (Random House), which uses
`<dc:language>eng</dc:language>`.

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**PARTIALLY**_
2026-04-07 00:30:24 +01:00
+7 e6c6e72a24 chore(release): 1.2.0 Release Candidate (#1483)
Compile Release / build-release (push) Canceled after 0s
## Summary

It's been a little while since the last release, but the community has
been incredibly busy. With 155 changes from 48 contributors (30 of which
were new!), there was a lot to cover. Here are some of the highlights:

**🔤 Kerning, Ligatures, and Font Improvements**
Text rendering gets a significant upgrade with proper kerning and
ligature support, fixed-point fractional x-advance for more accurate
character placement, and font compression improvements that reduce flash
usage.

**📝 Footnotes**
Footnote anchor navigation lets you select a footnote reference and jump
to the footnote text, then jump back. Slim footnotes support is also
available for books that use inline footnotes.

**📖 EPUB Optimizer**
A new integrated EPUB optimizer can clean up and reprocess books for
better compatibility with the reader, directly from the device.

**🔋 Battery Charging Indicator**
You can now see when your device is actively charging, with a visual
indicator on the battery icon.

**💾 Crash Diagnostics**
When something goes wrong, the firmware now dumps a crash report to the
SD card — even without USB plugged in. This makes it much easier to
report and diagnose issues.

**🌐 New Languages**
The community continues to expand language support. New in this release:
Turkish, Danish, Finnish, Polish, Dutch, Belarusian, Italian, Ukrainian,
Romanian, Catalan, Vietnamese, and Kazakh — along with significant
improvements to existing translations.

**📂 File Management**
Multi-select file deletion, BMP image viewer in the file browser, hidden
directory browsing, and long-click file deletion from the file browser.

** Performance**
Under the hood, text layout switched from `std::list` to `std::vector`,
HTML entity lookups are now O(log(n)), font rendering is faster, image
decode is 5-20% faster with per-pixel overhead eliminated, and multiple
string allocation hot paths were eliminated. Pre-indexing of the next
chapter also reduces page-turn latency at chapter boundaries.

---

Along with all of the above, there are many other additions including
**WebDAV support**, **auto page turn**, **QR code for current page**,
**split status bar settings**, **screenshot capture**, **JSON-based
settings migration**, **light/dark theme groundwork**, and a long list
of stability fixes and translation improvements.

## What's Changed
### Features
* feat: Support for kerning and ligatures by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/873
* feat: footnote anchor navigation by @Uri-Tauber in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1245
* feat: slim footnotes support by @Uri-Tauber in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1031
* feat: integrated epub optimizer by @zgredex and @pablohc in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1224
* feat: battery charging indicator (mirroring PR #537) by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1427
* feat: dump crash report to sdcard by @ngxson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1145
* feat: Implement silent pre-indexing for the next chapter in
EpubReaderActivity by @LSTAR1900 in
https://github.com/crosspoint-reader/crosspoint-reader/pull/979
* feat: upgrade platform and support webdav by @dexif in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1047
* feat: Auto Page Turn for Epub Reader by @GenesiaW in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1219
* feat: enhance file deletion functionality with multi-select by
@Jessica765 in
https://github.com/crosspoint-reader/crosspoint-reader/pull/682
* feat: Long Click for File Deletion through File Browser by @Levrk in
https://github.com/crosspoint-reader/crosspoint-reader/pull/909
* feat: Take screenshots by @el in
https://github.com/crosspoint-reader/crosspoint-reader/pull/759
* feat: Current page as QR by @el in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1099
* feat: Download links for web server by @el in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1039
* feat: Added BmpViewer activity for viewing .bmp images in file browser
by @Levrk in
https://github.com/crosspoint-reader/crosspoint-reader/pull/887
* feat: User setting for image display by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1291
* feat: Show hidden directories in browser by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1288
* feat: Prefer ".sleep" over "sleep" for custom image directory by
@jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/948
* feat: Allow a local configuration file for custom compiles by @jpirnay
in https://github.com/crosspoint-reader/crosspoint-reader/pull/879
* feat: Migrate binary settings to json by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/920
* feat: split status bar setting by @whyte-j in
https://github.com/crosspoint-reader/crosspoint-reader/pull/733
* feat: wrapped text in GfxRender, implemented in themes so far by
@iandchasse in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1141
* feat: Themed language screen by @CaptainFrito in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1020
* feat: set WiFi hostname to CrossPoint-Reader-XXXXXXXXXXXX by @dexif in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1107
* feat: Add maxAlloc to memory information by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1152
* feat: replace picojpeg with JPEGDEC for JPEG image decoding by
@martinbrook in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1136
* feat: Add git branch to version information on settings screen by
@jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1225
* feat: sort languages in selection menu by @ariel-lindemann in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1071
* feat: Latin Extended-B European glyphs by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1157
* feat: Latin Extended-B European glyphs by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1167
* feat: Vietnamese glyphs support by @danoooob in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1147
* feat: add Turkish translation by @barbarhan in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1192
* feat: add full Danish translation by @hajisan in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1146
* feat: Add Finnish translations by @plahteenlahti in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1133
* feat: Add Polish Language by @th0m4sek in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1155
* feat: add Dutch translation by @basvdploeg in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1204
* feat: add Belarusian translation by @dexif in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1120
* feat: Add full Italian translations by @andreaturchet in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1144
* feat: add Ukrainian translation by @mirus-ua in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1065
* feat: Add Kazakh (kk) language support by @fsocietyipa in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1377
* feat: added Romanian strings by @ariel-lindemann in
https://github.com/crosspoint-reader/crosspoint-reader/pull/987
* feat: add Catalan strings by @angeldenom in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1049
* feat: Make directories stand out more in local file browser: "[dir]"
instead of "dir" by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1339
* feat: Add Polish strings for commits #1219,#1169,#1031 +tweaks by
@th0m4sek in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1227
* feat: Polish translation tweaks by @th0m4sek in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1193
### Fixes
* fix: Fix img layout issue / support CSS display:none for elements and
images by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1443
* fix: Overlapping battery percentage on image pages with anti-aliasing
by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1452
* fix: Fix prewarm perf when a page contains many styles by
@adriancaruana in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1451
* fix: use sleep routine from the original firmware by @ngxson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1298
* fix: Prevent line breaks on common English contractions by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1405
* fix: Build with -fno-exceptions by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1412
* fix: Reduce flash usage by cleaning up I18n translations by @steka in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1401
* fix: jpeg resource cleanup by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1320
* fix: back button in settings returns to tab bar first by @Cache8063 in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1354
* fix: Init lastSleepImage (edge case) by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1360
* fix: Add special handling for apostrophe hyphenation by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1318
* fix: Fix inter-word spacing rounding error in text layout by @znelson
in https://github.com/crosspoint-reader/crosspoint-reader/pull/1311
* fix: load access fault crash by @Uri-Tauber in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1370
* fix: Fix bootloop logging crash by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1357
* fix: dump crash log without usb plugged, bump release log to INFO by
@ngxson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1332
* fix: avoid zip filename overflow by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1321
* fix: Hanging indent (negative text-indent) and em-unit sizing by
@jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1229
* fix: Use fixed-point fractional x-advance and kerning for better text
layout by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1168
* fix: use HTTPClient::writeToStream for downloading files from OPDS by
@osteotek in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1207
* fix: make file system operations thread-safe (HalFile) by @ngxson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1212
* fix: properly implement requestUpdateAndWait() by @ngxson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1218
* fix: prevent infinite render loop in Calibre Wireless after file
transfer by @pablohc in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1070
* fix: WiFi lifecycle and hyphenation heap defragmentation for KOReader
sync by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1151
* fix: Fix coverRendered flag by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1154
* fix: Handle non-ASCII characters in sanitizeFilename by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1132
* fix: Update activity was missing "Back" button label by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1128
* fix: force auto-hinting for Bookerly to fix inconsistent stem widths
by @adriancaruana in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1098
* fix: image centering bleed by @martinbrook in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1096
* fix: double free WebDAVHandler by @ngxson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1093
* fix: Consider extra quotation styles when hyphenating quoted words by
@cbix in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1077
* fix: acquire power lock before sleeping by @ngxson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1125
* fix: Unify inconsistent Wi-Fi/WiFi in Czech translation by @pepastach
in https://github.com/crosspoint-reader/crosspoint-reader/pull/1138
* fix: sdfat warning about redefinition of macro by @ngxson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1135
* fix: Close leaked file descriptors in SleepActivity and web server by
@brbla in
https://github.com/crosspoint-reader/crosspoint-reader/pull/869
* fix: Enable DESTRUCTOR_CLOSES_FILE flag by @daveallie in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1075
* fix: Change "UI Font Size" to "Reader Font Size" by @divinitycove in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1171
* fix: Hide unusable button hints when viewing empty directory by @Levrk
in https://github.com/crosspoint-reader/crosspoint-reader/pull/1253
* fix: broken translations in status bar settings by @ariel-lindemann in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1188
* fix: clarity issue with ambiguous string `SET` by @ariel-lindemann in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1169
* fix: Crash (Load access fault) when indexing chapters containing
characters unsupported by bold/italic font variants by @Uri-Tauber in
https://github.com/crosspoint-reader/crosspoint-reader/pull/997
* fix: Increase PNGdec buffer size to support wide images by @osteotek
in https://github.com/crosspoint-reader/crosspoint-reader/pull/995
* fix: Use HalPowerManager for battery percentage by @vjapolitzer in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1005
* fix: Fix dangling pointer by @Uri-Tauber in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1010
* fix: re-implementing Cover Outlines for the new Lyra Themes by @Levrk
in https://github.com/crosspoint-reader/crosspoint-reader/pull/1017
* fix: use double FAST_REFRESH to prevent washout on large grey images
by @martinbrook in
https://github.com/crosspoint-reader/crosspoint-reader/pull/957
* fix: Fixed Image Sizing When No Width is Set by @DestinySpeaker in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1002
* fix: Strip unused CSS rules by @daveallie in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1014
* fix: continue reading card classic theme by @pablohc in
https://github.com/crosspoint-reader/crosspoint-reader/pull/990
* fix: Destroy CSS Cache file when invalid by @daveallie in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1018
* fix: Shorten "Forget Wifi" button labels to fit on button by
@lukestein in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1045
* fix: improve Spanish translations by @pablohc in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1054
* fix: Fixed book title in home screen by @DestinySpeaker in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1013
* fix: Fix hyphenation and rendering of decomposed characters by
@jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1037
* fix: Improve and add Spanish translations by @DaniPhii in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1338
* fix: improve and add Spanish translations by @DaniPhii in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1254
* fix: improve and add Swedish translations by @steka in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1317
* fix: Extend missing / amend existing German translations by @jpirnay
in https://github.com/crosspoint-reader/crosspoint-reader/pull/1226
* fix: update french.yaml file to have a better French translation of
the CFW by @Spigaw in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1130
* fix: added romanian translation to new strings by @ariel-lindemann in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1105
* fix: add missing romanian strings by @ariel-lindemann in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1187
* fix: add new Ukrainian translation line for STR_SCREENSHOT_BUTTON by
@mirus-ua in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1149
* fix: Dutch translation prefix correction by @basvdploeg in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1223
* fix: Small typo in i18n.md regarding C++ identifiers by
@victordomingos in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1210
* fix: typo in USER_GUIDE.md by @arnaugamez in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1036
* fix: add missing keyboard metrics to Lyra3CoversTheme by @dexif in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1101

### Internal
* perf: font-compression improvements by @adriancaruana in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1056
* perf: Improve font drawing performance by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/978
* perf: Replace std::list with std::vector in text layout by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1038
* perf: Optimize HTML entities lookup to O(log(n)) by @Uri-Tauber in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1194
* perf: UITheme::getMetrics const and const-ref usage by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1094
* perf: Avoid creating strings for file extension checks by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1303
* perf: Eliminate per-pixel overheads in image rendering by @martinbrook
in https://github.com/crosspoint-reader/crosspoint-reader/pull/1293
* perf: Update github actions for optimal performance with pioarduino by
@Jason2866 in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1080
* style: Phase 1 - Simple light dark themes by @cdmoro in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1006
* refactor: implement ActivityManager by @ngxson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1016
* refactor: Simplify REPLACEMENT_GLYPH fallback by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1119
* refactor: Simplify new setting introduction by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1086
* refactor: Use std binary search algorithms for font lookups by
@znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1202
* refactor: rename MyLibrary to FileBrowser by @osteotek in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1260
* refactor: Avoid rebuilding cache path strings by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1300
* refactor: reader utils by @Uri-Tauber in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1329
* chore: Remove miniz and modularise inflation logic by @daveallie in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1073
* chore: Resolve several build warnings by @daveallie in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1076
* chore: Removed generated language headers by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1156
* chore: Added generated lang headers to .gitignore by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1158
* chore: remove redundant xTaskCreate by @ngxson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1264
* chore: Removed unused PlatformIO include directory placeholder by
@znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1417
* chore: micro-optimisation: early exit on fillUncompressedSizes by
@jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1322
* chore: change label while on settings tab actions by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1325
* chore: add firmware size history script by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1235
* chore: Add powershell script for clang-formatting by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1472
* chore: Removed unused ConfirmationActivity member by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1234
* chore: Update russian.yaml by @madebyKir in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1198
* chore: new Ukrainian translation lines by @mirus-ua in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1199
* chore: new Ukrainian localization strings by @mirus-ua in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1270
* chore: Polish localization for STR_DELETE by @JonaszPotoniec in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1323
* chore: Image settings Polish localization by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1299
* chore: add missing Catalan strings by @angeldenom in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1302
* chore: add missing translations for Romanian by @ariel-lindemann in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1265
* chore: Add Portuguese (Portugal) translator to the list by
@victordomingos in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1211
* chore: Reduce flash usage by cleaning up I18n translations by @steka
in https://github.com/crosspoint-reader/crosspoint-reader/pull/1401
* docs: Add lightweight contributor onboarding documentation by @bilalix
in https://github.com/crosspoint-reader/crosspoint-reader/pull/894
* docs: ActivityManager migration guide by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1222
* docs: USER_GUIDE.md update for 1.1.0 by @divinitycove in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1108
* docs: add quick KOReader sync setup guide by @wjhrdy in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1181
* docs: image support marked as completed by @ariel-lindemann in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1008
* feat: aiagent context definition by @jpirnay in
https://github.com/crosspoint-reader/crosspoint-reader/pull/922
* chore: Update SKILL.md to reflect generated i18n files are gitignored
by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1423
* fix: ActivityManager tweaks by @znelson in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1220
* fix: Correct relative file paths in SKILL.md documentation by @pablohc
in https://github.com/crosspoint-reader/crosspoint-reader/pull/1304
* fix: add Technically Unsupported section to SCOPE.md by @Uri-Tauber in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1295

## New Contributors
* @DestinySpeaker made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1002
* @arnaugamez made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1036
* @angeldenom made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1049
* @cdmoro made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1006
* @bilalix made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/894
* @Jessica765 made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/682
* @brbla made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/869
* @dexif made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1047
* @mirus-ua made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1065
* @cbix made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1077
* @divinitycove made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1108
* @pepastach made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1138
* @Jason2866 made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1080
* @andreaturchet made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1144
* @Spigaw made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1130
* @iandchasse made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1141
* @th0m4sek made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1155
* @plahteenlahti made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1133
* @hajisan made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1146
* @madebyKir made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1198
* @victordomingos made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1210
* @basvdploeg made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1204
* @wjhrdy made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1181
* @DaniPhii made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1254
* @steka made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1317
* @barbarhan made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1192
* @JonaszPotoniec made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1323
* @Cache8063 made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1354
* @fsocietyipa made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1377
* @LSTAR1900 made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/979
* @zgredex made their first contribution in
https://github.com/crosspoint-reader/crosspoint-reader/pull/1224

**Full Changelog**:
https://github.com/crosspoint-reader/crosspoint-reader/compare/1.1.1...release/1.2.0

---------

Co-authored-by: jpirnay <jens@pirnay.com>
Co-authored-by: Dani Poveda <daniphii@outlook.com>
Co-authored-by: Baris Albayrak <80099286+barbarhan@users.noreply.github.com>
Co-authored-by: Barış Albayrak <barisa@pop-os.lan>
Co-authored-by: Stefan Blixten Karlsson <sbkarlsson@gmail.com>
Co-authored-by: Àngel <153315454+angeldenom@users.noreply.github.com>
Co-authored-by: Jonasz Potoniec <jonasz@potoniec.eu>
Co-authored-by: Егор Мартынов <martynovegorOF@yandex.ru>
Co-authored-by: Mirus <mirusim@gmail.com>
Co-authored-by: Spigaw <73850535+Spigaw@users.noreply.github.com>
Co-authored-by: ariel-lindemann <41641978+ariel-lindemann@users.noreply.github.com>
Co-authored-by: Nima Salami <54304457+hajisan@users.noreply.github.com>
Co-authored-by: Arthur Tazhitdinov <lisnake@gmail.com>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-authored-by: Bas van der Ploeg <bas@basvanderploeg.nl>
Co-authored-by: martin brook <martin.brook100@googlemail.com>
2026-04-03 17:33:02 -05:00
Zach Nelson 0cbfaa007d fix: Overlapping battery percentage on image pages with anti-aliasing (#1452)
## Summary

**What is the goal of this PR?**

When viewing a page with images and anti-aliasing enabled, the
`imagePageWithAA` path renders the page twice with fast refreshes (blank
image area, then restore). Both passes called `renderStatusBar()`, which
reads the battery percentage live. If the value changed between the two
renders (e.g. 88% -> 87%), the digits would overlap on screen.
Fix: Removed the redundant `renderStatusBar()` from the second BW
render. The status bar is already drawn and displayed in the first pass,
and only the image area needs restoration.

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**NO**_
2026-03-23 22:05:15 +00:00
Zach Nelson 53beeeed2b chore: Removed unused PlatformIO include directory placeholder (#1417)
## Summary

**What is the goal of this PR?**

This change deletes include/README, which is a PlatformIO boilerplate
placeholder file explaining what header files are. The include/
directory isn't used by this project (headers live in lib/ and src/), so
this is just cleanup.

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**NO**_
2026-03-19 23:20:50 -05:00
Zach Nelson 9665dd7473 chore: Update SKILL.md to reflect generated i18n files are gitignored (#1423)
## Summary

**What is the goal of this PR?**

Update SKILL.md to stop instructing contributors to commit `I18nKeys.h`
and `I18nStrings.h`. All three generated i18n files have been gitignored
since ff577540 and are regenerated at build time.

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**NO**_
2026-03-19 23:19:54 -05:00
Zach Nelson d6951f81b7 fix: Build with -fno-exceptions (#1412)
## Summary

**What is the goal of this PR?**

Until today, I sincerely thought we were building without exception
support. The codebase is not set up with any exception handling
infrastructure. The SKILL.md file specifies no exceptions.

I just learned that we actually were building with exceptions enabled,
with `-fexceptions` coming from
~/.platformio/packages/framework-arduinoespressif32-libs/esp32c3/pioarduino-build.py.

This change removes the `-fexceptions` flag and adds `-fno-exceptions`.
The result is **53,670 bytes in flash savings**.

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**NO**_
2026-03-18 11:41:18 -05:00
Zach Nelson dc39480349 fix: Prevent line breaks on common English contractions (#1405) 2026-03-16 20:04:06 -04:00
Zach Nelson 32a5c1c358 fix: Fix inter-word spacing rounding error in text layout (#1311)
## Summary

**What is the goal of this PR?**

### Problem

Inter-word gap widths were computed as two separately-snapped integers:

```cpp
gap = getSpaceWidth(fontId, style);                        // fp4::toPixel(spaceAdvance)
gap += getSpaceKernAdjust(fontId, leftCp, rightCp, style); // fp4::toPixel(kern1 + kern2)
```

Because `fp4::toPixel(a) + fp4::toPixel(b)` can differ from
`fp4::toPixel(a + b)` by +/-1 pixel when the fractional parts straddle a
rounding boundary, each inter-word space could be one pixel wider or
narrower than the correct value. This affected line-break width
decisions and word-position accumulation across the whole paragraph
layout pipeline.

### Fix

Replaces `getSpaceKernAdjust()` with `getSpaceAdvance(fontId, leftCp,
rightCp, style)`, which combines the space glyph advance and both
flanking kern values (`kern(leftCp, ' ')` + `kern(' ', rightCp)`) into a
single fixed-point sum before the snap:

```cpp
return fp4::toPixel(spaceAdvanceFP + kern(leftCp, ' ') + kern(' ', rightCp));
```

This is the same single-snap pattern already used by `getTextAdvanceX`
for word widths.

### Changes

- **`GfxRenderer`**: Replaces `getSpaceKernAdjust()` with
`getSpaceAdvance()`. `getSpaceWidth()` is retained for the
single-space-word case in `measureWordWidth` where no adjacent-word kern
context is available.
- **`ParsedText`**: All four call sites (`computeLineBreaks`,
`computeHyphenatedLineBreaks`, and both loops in `extractLine`) updated
to use `getSpaceAdvance()`. The now-redundant `spaceWidth`
pre-computation and parameter are removed from all three internal layout
functions.

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**YES to analyze for
correctness**_
2026-03-10 22:55:23 -05:00
Zach Nelson c3f1dbfa09 perf: Avoid creating strings for file extension checks (#1303)
## Summary

**What is the goal of this PR?**

This change avoids the pattern of creating a `std::string` using
`.substr` in order to compare against a file extension literal.
```c++
std::string path;
if (path.length() >= 4 && path.substr(path.length() - 4) == ".ext")
```

The `checkFileExtension` utility has moved from StringUtils to
FsHelpers, to be available to code in lib/. The signature now accepts a
`std::string_view` instead of `std::string`, which makes the single
implementation reusable for Arduino `String`.

Added utility functions for commonly repeated extensions.

These changes **save about 2 KB of flash (5,999,427 to 5,997,343)**.

---

### AI Usage

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please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**NO**_
2026-03-05 10:12:22 -06:00
Zach Nelson ea88797c8e chore: Image settings Polish localization (#1299)
## Summary

**What is the goal of this PR?**

Quick follow up to #1291, adding Polish translations suggested by
@th0m4sek

---

### AI Usage

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please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**NO**_
2026-03-05 19:08:36 +03:00
Zach Nelson a826569a0f refactor: Avoid rebuilding cache path strings (#1300)
## Summary

**What is the goal of this PR?**

Avoid building cache path strings twice, once to check existence of the
file and a second time to delete the file.

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**NO**_
2026-03-04 20:48:02 -05:00
Zach Nelson 7dc518624c fix: Use fixed-point fractional x-advance and kerning for better text layout (#1168)
## Summary

**What is the goal of this PR?**

Hopefully fixes #1182.

_Note: I think letterforms got a "heavier" appearance after #1098, which
makes this more noticeable. The current version of this PR reverts the
change to add `--force-autohint` for Bookerly, which to me seems to
bring the font back to a more aesthetic and consistent weight._

#### Problem

Character spacing was uneven in certain words. The word "drew" in
Bookerly was the clearest example: a visible gap between `d` and `r`,
while `e` and `w` appeared tightly condensed. The root cause was
twofold:

1. **Integer-only glyph advances.** `advanceX` was stored as a `uint8_t`
of whole pixels, sourced from FreeType's hinted `advance.x` (which
grid-fits to integers). A glyph whose true advance is 15.56px was stored
as 16px -- an error of +0.44px per character that compounds across a
line.

2. **Floor-rounded kerning.** Kern adjustments were converted with
`math.floor()`, which systematically over-tightened negative kerns. A
kern of -0.3px became -1px -- a 0.7px over-correction that visibly
closed gaps.

Combined, these produced the classic symptom: some pairs too wide,
others too tight, with the imbalance varying per word.

#### Solution: fixed-point accumulation with 1/16-pixel resolution, for
sub-pixel precision during text layout

All font metrics now use a "fixed-point 4" format -- 4 fractional bits
giving 1/16-pixel (0.0625px) resolution. This is implemented with plain
integer arithmetic (shifts and adds), requiring no floating-point on the
ESP32.

**How it works:**

A value like 15.56px is stored as the integer `249`:

```
249 = 15 * 16 + 9    (where 9/16 = 0.5625, closest to 0.56)
```

Two storage widths share the same 4 fractional bits:

| Field | Type | Format | Range | Use |
|-------|------|--------|-------|-----|
| `advanceX` | `uint16_t` | 12.4 | 0 -- 4095.9375 px | Glyph advance
width |
| `kernMatrix` | `int8_t` | 4.4 | -8.0 -- +7.9375 px | Kerning
adjustment |

Because both have 4 fractional bits, they add directly into a single
`int32_t` accumulator during layout. The accumulator is only snapped to
the nearest whole pixel at the moment each glyph is rendered:

```cpp
int32_t xFP = fp4::fromPixel(startX);     // pixel to 12.4: startX << 4

for each character:
    xFP += kernFP;                          // add 4.4 kern (sign-extends into int32_t)
    int xPx = fp4::toPixel(xFP);           // snap to nearest pixel: (xFP + 8) >> 4
    render glyph at xPx;
    xFP += glyph->advanceX;                // add 12.4 advance
```

Fractional remainders carry forward indefinitely. Rounding errors stay
below +/- 0.5px and never compound.

#### Concrete example: "drew" in Bookerly

**Before** (integer advances, floor-rounded kerning):

| Char | Advance | Kern | Cursor | Snap | Gap from prev |
|------|---------|------|--------|------|---------------|
| d | 16 px | -- | 33 | 33 | -- |
| r | 12 px | 0 | 49 | 49 | ~2px |
| e | 13 px | -1 | 60 | 60 | ~0px |
| w | 22 px | -1 | 72 | 72 | ~0px |

The d-to-r gap was visibly wider than the tightly packed `rew`.

**After** (12.4 advances, 4.4 kerning, fractional accumulation):

| Char | Advance (FP) | Kern (FP) | Accumulator | Snap | Ink start | Gap
from prev |

|------|-------------|-----------|-------------|------|-----------|---------------|
| d | 249 (15.56px) | -- | 528 | 33 | 34 | -- |
| r | 184 (11.50px) | 0 | 777 | 49 | 49 | 0px |
| e | 208 (13.00px) | -8 (-0.50px) | 953 | 60 | 61 | 1px |
| w | 356 (22.25px) | -4 (-0.25px) | 1157 | 72 | 72 | 0px |

Spacing is now `0, 1, 0` pixels -- nearly uniform. Verified on-device:
all 5 copies of "drew" in the test EPUB produce identical spacing,
confirming zero accumulator drift.

#### Changes

**Font conversion (`fontconvert.py`)**
- Use `linearHoriAdvance` (FreeType 16.16, unhinted) instead of
`advance.x` (26.6, grid-fitted to integers) for glyph advances
- Encode kern values as 4.4 fixed-point with `round()` instead of
`floor()`
- Add `fp4_from_ft16_16()` and `fp4_from_design_units()` helper
functions
- Add module-level documentation of fixed-point conventions

**Font data structures (`EpdFontData.h`)**
- `EpdGlyph::advanceX`: `uint8_t` to `uint16_t` (no memory cost due to
existing struct padding)
- Add `fp4` namespace with `constexpr` helpers: `fromPixel()`,
`toPixel()`, `toFloat()`
- Document fixed-point conventions

**Font API (`EpdFont.h/cpp`, `EpdFontFamily.h/cpp`)**
- `getKerning()` return type: `int8_t` to `int` (to avoid truncation of
the 4.4 value)

**Rendering (`GfxRenderer.cpp`)**
- `drawText()`: replace integer cursor with `int32_t` fixed-point
accumulator
- `drawTextRotated90CW()`: same accumulator treatment for vertical
layout
- `getTextAdvanceX()`, `getSpaceWidth()`, `getSpaceKernAdjust()`,
`getKerning()`: convert from fixed-point to pixel at API boundary

**Regenerated all built-in font headers** with new 12.4 advances and 4.4
kern values.

#### Memory impact

Zero additional RAM. The `advanceX` field grew from `uint8_t` to
`uint16_t`, but the `EpdGlyph` struct already had 1 byte of padding at
that position, so the struct size is unchanged. The fixed-point
accumulator is a single `int32_t` on the stack.

#### Test plan

- [ ] Verify "drew" spacing in Bookerly at small, medium, and large
sizes
- [ ] Verify uppercase kerning pairs: AVERY, WAVE, VALUE
- [ ] Verify ligature words: coffee, waffle, office
- [ ] Verify all built-in fonts render correctly at each size
- [ ] Verify rotated text (progress bar percentage) renders correctly
- [ ] Verify combining marks (accented characters) still position
correctly
- [ ] Spot-check a full-length book for any layout regressions

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**YES, Claude Opus 4.6
helped figure out a non-floating point approach for sub-pixel error
accumulation**_
2026-03-01 10:43:37 -06:00
Zach Nelson 620835a6a1 chore: add firmware size history script (#1235)
## Summary

**What is the goal of this PR?**

- Adds `scripts/firmware_size_history.py`, a developer tool that builds
firmware at selected git commits and reports flash usage with deltas
between them.
- Supports two input modes: `--range START END` to walk every commit in
a range, or `--commits REF [REF ...]` to compare specific refs (which
can span branches).
- Defaults to a human-readable aligned table; pass `--csv` for
machine-readable output to stdout or `--csv FILE` to write to a file.

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**YES, fully written by
AI**_
2026-03-01 10:28:32 -06:00
Zach Nelson 3cc8e272ca refactor: Use std binary search algorithms for font lookups (#1202)
## Summary

**What is the goal of this PR?**

Rewrite of font routines to use std binary search algorithms instead of
custom repeated implementations: `lookupKernClass`,
`EpdFont::getLigature`, and `EpdFont::getGlyph`.

---

### AI Usage

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2026-03-01 10:28:15 -06:00
Zach Nelson 80d1856330 perf: Removed unused ConfirmationActivity member (#1234)
## Summary

**What is the goal of this PR?**

Small follow up to #909, removing an unused member variable and some
temporary debug logging.

---

### AI Usage

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2026-03-01 10:04:52 -06:00
Zach Nelson 42b122b8fd docs: ActivityManager migration guide (#1222)
## Summary

**What is the goal of this PR?**

Added overview and migration guide for ActivityManager changes in #1016.
Thanks for the suggestion, @drbourbon!

---

### AI Usage

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please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**YES, fully written by
Claude 4.6**_
2026-02-28 11:10:14 +01:00
Zach Nelson 050a3bd1b6 fix: ActivityManager tweaks (#1220)
## Summary

**What is the goal of this PR?**

Small tweaks to #1016:
- Only Activity and ActivityManager can access activityResultHandler and
activityResult
- `[[maybe_unused]]` in RenderLock constructor
- Only ActivityManager and RenderLock can access renderingMutex
- Missing renderUpdate after failed wifi selection
- Standardize on activities calling finish instead of
activityManager.popActivity
- Hold RenderLock while mutating state in EpubReaderActivity result
handlers

---

### AI Usage

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helps set the right context for reviewers.

Did you use AI tools to help write this code? _**NO**_
2026-02-27 22:48:24 +01:00
Zach Nelson cb72916397 feat: Latin Extended-B European glyphs (#1167)
## Summary

**What is the goal of this PR?**

Correction to #1157, which (embarrassingly) failed to actually include
the updated font header files. (Maybe we should generate these at build
time?)

Add Latin Extended-B glyphs for Croatian, Romanian, Pinyin, and European
diacritical variants. Fixes #921.

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**PARTIALLY, confirmed
codepoint ranges with Claude**_
2026-02-25 12:56:11 +03:00
Zach Nelson 31396da064 fix: Update activity was missing "Back" button label (#1128)
## Summary

**What is the goal of this PR?**

When update activity finds no update or fails, the "Back" button label
was missing. Fixes #1089.

---

### AI Usage

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helps set the right context for reviewers.

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2026-02-24 22:21:46 -06:00
Zach Nelson 8ab2f22730 fix: Handle non-ASCII characters in sanitizeFilename (#1132)
## Summary

**What is the goal of this PR?**

Probable fix for #1118. `sanitizeFilename` was only passing through
ASCII characters from filenames. It now maintains valid UTF-8
codepoints, including non-ASCII multibyte sequences. Truncation happens
at a maximum number of bytes, rather than characters, to prevent
filenames with many multibyte sequences from unexpectedly exceeding
FAT32 limits.

---

### AI Usage

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Did you use AI tools to help write this code? _**YES, I described #1118
to Claude and it suggested sanitizeFilename as the likely cause**_
2026-02-24 17:43:58 -06:00
Zach Nelson c0cd7c13a3 feat: Latin Extended-B European glyphs (#1157)
## Summary

**What is the goal of this PR?**

Add Latin Extended-B glyphs for Croatian, Romanian, Pinyin, and European
diacritical variants. Fixes #921.

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**PARTIALLY, confirmed
codepoint ranges with Claude**_
2026-02-24 16:44:20 -06:00
Zach Nelson ff577540a3 chore: Added generated lang headers to .gitignore (#1158)
## Summary

**What is the goal of this PR?**

Following up on #1156: generated language header files should be
ignored.

---

### AI Usage

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2026-02-24 21:48:07 +03:00
Zach Nelson 43efd80e14 chore: Removed generated language headers (#1156)
## Summary

**What is the goal of this PR?**

I18nKeys.h and I18nStrings.h are generated by gen_i18n.py prior to each
build, so we do not need to maintain a checked-in copy of these files.

---

### AI Usage

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2026-02-24 11:42:05 -06:00
Zach NelsonandCursor 0eb8a9346b feat: Support for kerning and ligatures (#873)
## Summary

**What is the goal of this PR?**
Improved typesetting, including
[kerning](https://en.wikipedia.org/wiki/Kerning) and
[ligatures](https://en.wikipedia.org/wiki/Ligature_(writing)#Latin_alphabet).

**What changes are included?**
- The script to convert built-in fonts now adds kerning and ligature
information to the generated font headers.
- Epub page layout calculates proper kerning spaces and makes ligature
substitutions according to the selected font.


![3U1B1808](https://github.com/user-attachments/assets/1accb16f-2f1a-41e5-adca-89f1f1348494)

![3U1B1810](https://github.com/user-attachments/assets/2f6bd007-490e-420f-b774-3380b4add7ea)

![3U1B1815](https://github.com/user-attachments/assets/1986bb77-2db0-46e2-a5d6-8315dae9eb19)

## Additional Context

- I am not a typography expert. 
- The implementation has been reworked from the earlier version, so it
is no longer necessary to omit Open Dyslexic, and kerning data now
covers all fonts, styles, and codepoints for which we include bitmap
data.
- Claude Opus 4.6 helped with a lot of this.
- There's an included test epub document with lots of kerning and
ligature examples, shown in the photos.

**_After some time to mature, I think this change is in decent shape to
merge and get people testing._**

After opening this PR I came across #660, which overlaps in adding
ligature support.

---

### AI Usage

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please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**YES, Claude Opus 4.6**_

---------

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-02-24 11:31:43 +03:00
Zach Nelson 13fc8b94b0 refactor: Simplify REPLACEMENT_GLYPH fallback (#1119)
## Summary

**What is the goal of this PR?**

Consolidated repeated logic to fall back to REPLACEMENT_GLYPH.

---

### AI Usage

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2026-02-23 13:32:50 +01:00
Zach Nelson 410c70ab89 perf: UITheme::getMetrics const and const-ref usage (#1094)
## Summary

**What is the goal of this PR?**

Small cleanup to make getTheme and getMetrics methods on UITheme const.
They return const refs, so updated call sites to use `const auto&`.

Realistically this won't make much performance difference, but it better
conveys the nature of theme metrics being shared const state.

---

### AI Usage

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2026-02-23 13:29:18 +01:00
Zach NelsonandKuanysh Bekkulov 3696794591 perf: Replace std::list with std::vector in text layout (#1038)
## Summary

_Revision to @blindbat's #802. Description comes from the original PR._

- Replace `std::list` with `std::vector` for word storage in `TextBlock`
and `ParsedText`
- Use index-based access (`words[i]`) instead of iterator advancement
(`std::advance(it, n)`)
- Remove the separate `continuesVec` copy that was built from
`wordContinues` for O(1) access — now unnecessary since
`std::vector<bool>` already provides O(1) indexing

## Why

`std::list` allocates each node individually on the heap with 16 bytes
of prev/next pointer overhead per node. For text layout with many small
words, this means:
- Scattered heap allocations instead of contiguous memory
- Poor cache locality during iteration (each node can be anywhere in
memory)
- Per-node malloc/free overhead during construction and destruction

`std::vector` stores elements contiguously, giving better cache
performance during the tight rendering and layout loops. The
`extractLine` function also benefits: list splice was O(1) but required
maintaining three parallel iterators, while vector range construction
with move iterators is simpler and still efficient for the small
line-sized chunks involved.

## Files changed

- `lib/Epub/Epub/blocks/TextBlock.h` / `.cpp`
- `lib/Epub/Epub/ParsedText.h` / `.cpp`

## AI Usage

YES

## Test plan

- [ ] Open an EPUB with mixed formatting (bold, italic, underline) —
verify text renders correctly
- [ ] Open a book with justified text — verify word spacing is correct
- [ ] Open a book with hyphenation enabled — verify words break
correctly at hyphens
- [ ] Navigate through pages rapidly — verify no rendering glitches or
crashes
- [ ] Open a book with long paragraphs — verify text layout matches
pre-change behavior

---------

Co-authored-by: Kuanysh Bekkulov <kbekkulov@gmail.com>
2026-02-22 15:28:56 +11:00
Zach Nelson 448a77f02b perf: Remove hasPrintableChars pass (#971)
## Summary

**What is the goal of this PR?**

`hasPrintableChars` does a pass over text before rendering. It looks up
glyphs in the font and measures dimensions, returning early if the text
results in zero size.

This additional pass doesn't offer any benefit over moving straight to
rendering the text, because the rendering loop already gracefully
handles missing glyphs. This change saves an extra pass over all
rendered text.

Note that both `hasPrintableChars` and `renderChar` replace missing
glyphs with `glyph = getGlyph(REPLACEMENT_GLYPH)`, so there's no
difference for characters which are not present in the font.

---

### AI Usage

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2026-02-19 21:58:09 +11:00
Zach Nelson f1740dbe1e fix: Correct word width and space calculations (#963)
## Summary

**What is the goal of this PR?**

This change fixes an issue I noticed while reading where occasionally,
especially in italics, some words would have too much space between
them. The problem was that word width calculations were including any
negative X overhang, and combined with a space before the word, that can
lead to an inconsistently large space.

## Additional Context

Screenshots of some problematic text:

| In CrossPoint 1.0 | With this change |
| -- | -- |
| <img
src="https://github.com/user-attachments/assets/87bf0e4b-341f-4ba9-b3ea-38c13bd26363"
width="400" /> | <img
src="https://github.com/user-attachments/assets/bf11ba20-c297-4ce1-aa07-43477ef86fc2"
width="400" /> |

---

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2026-02-19 20:44:07 +11:00
Zach Nelson d02e21a48f fix: Added missing up/down button labels (#935)
## Summary

**What is the goal of this PR?**

In some places, button labels are omitted intentionally because the
button has no purpose in the activity. I noticed a few obvious cases,
like Home > File Transfer and Settings > System > Language, where the up
and down button labels were missing. This change fixes those and all
similar instances I could find.

---

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2026-02-18 21:54:02 +03:00
Zach Nelson 9125a7ce68 perf: Avoid redundant font map lookups (#933)
## Summary

**What is the goal of this PR?**

Several methods in GfxRenderer were doing a `count()` followed by `at()`
on the fonts map, effectively doing the same map lookup unnecessarily.
This can be avoided by doing a single `find()` and reusing the iterator.

---

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2026-02-18 11:55:41 +01:00
Zach Nelson 97c33141bd perf: Skip constructing unnecessary std::string (#932)
## Summary

**What is the goal of this PR?**

Skip constructing a `std::string` just to get the underlying `c_str()`
buffer, when a string literal gives the same end result.

---

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2026-02-16 22:07:08 +01:00