Commit Graph
24 Commits
Author SHA1 Message Date
mckero f4f6ec7db5 feat(cw): ship the full fp32 DeepCW model instead of the int8 build
用户要求内置完整版模型, 不要量化版。

assets/deepcw/model.onnx: 4,354,478 bytes (int8) -> 15,139,839 bytes (fp32)
sha256 ef120799457bca042d4690944f0faf93268eb4654e7f50f28784ad63bdc1fe02,
与上游 commit 8e264d2 发布的原始文件逐字节一致, 零修改。

实测验证(直接对仓库内的 asset 跑推理, 35 个场景):
- 信噪比: 干净 ~ -6 dB 全部逐字符正确; -9 dB 起显著劣化
- 速度: 12-45 WPM, 8 档中 7 档零错误 (40 WPM 推理仅 167ms)
- 音调: 450-1150 Hz 全窗口 6/6 零错误
- 频率漂移: +20/+60/+150/-300 Hz 全部 4/4 零错误 (卫星多普勒无忧)
- QSB 衰落: 6/12 dB 无损, 20 dB 深衰落 CER 23.5%
- QRM 同频干扰: 4/4 失败(会把干扰台内容一起解出), 全频段模型固有特性,
  实用时依赖电台窄带 CW 滤波器缓解
- fp32 vs int8 准确率打平(5 档中 4 档完全一致); 服务器 x86 上 fp32 推理
  耗时约为 int8 的一半(int8 动态量化的反量化开销在无 int8 加速指令的 CPU
  上反而更慢)。手机 ARM 侧表现待装机确认。

NOTICE.md / DEEPCW.md / README.md 同步更新: 移除 int8 量化派生的记录与复现
步骤, 改为声明未修改照搬上游。

代价: APK 体积约 59MB -> 70MB, 运行内存峰值上升。此前真机闪退的根因是 R8
缺 -keep ai.onnxruntime.** 规则(已修), 与模型大小无关。
2026-08-13 14:48:56 +00:00
mckero 5d89190348 ui: slim the More menu and drop dead controls from the CW page
用户反馈三处 UI 问题, 一并处理。

1. 更多菜单风格不符 + 遮盖感重
   - 去掉全屏 scrim 遮罩(0.35 alpha 压暗整页), 改为透明点击层, 点外部仍可关闭
   - Card 限宽 232dp 靠右下角, 从"全宽卡片"变成竖长条
   - 容器色 surfaceContainerHigh -> surfaceContainer, 与导航栏一致; 加 1dp 细边框
   - 动画从全屏 expandVertically + spring 弹跳改为右下角原点 150ms scaleIn
   - Card 加 clickable(enabled=false) 吞掉点击, 避免点卡片空白区误触关闭

2. CW 页左上角退出键点击无效 -> 删除
   根因: CwDecodeScreen(navigateUp: () -> Unit = {}) 是默认空实现, 而
   MainScreen 的 entry<Screen.CwDecode> 调用 CwDecodeScreen() 从未传入
   navigateUp, 所以点击必然无反应。按 AGENTS.md 无死代码原则删除按钮 +
   navigateUp 参数 + cw_back 字符串(五语)。

3. CW 页"正在监听"状态行在停止解码后仍显示 -> 删除
   estimatedPitch 在暂停后保留上次值, 状态行不会消失, 属误导。删除该 Text
   后 estimatedPitch / lastInferenceMs 两个 collector 成为死代码, 一并清理;
   cw_status_listening / cw_status_tone 字符串(五语)同步删除。
   signalStrength(瀑布图) 与 errorMessage(错误提示) 仍在用, 保留。

验证:
- :app:compileDebugKotlin + :feature:cw:compileDebugKotlin => BUILD SUCCESSFUL
- :core:domain:test => 31 个 CW 测试全绿 (7+13+3+8)
2026-08-13 14:48:08 +00:00
mckero d6b61eaa4b license: switch the root LICENSE to AGPL-3.0 for the combined work
用户指出 GitHub 上显示的许可证仍是 GPL-3.0,未反映合并 AGPL 组件的事实。

根因: 之前只在 README 加了 License 章节,根 LICENSE 文件仍是 GPL-3.0 原文,
GitHub 的自动检测(只扫 LICENSE 文件)自然还是 GPL-3.0。

修复: 合并作品按 GPL-3.0 §13 / AGPL-3.0 §13 处理,根 LICENSE 改为:
- 顶部 LICENSING NOTICE 说明构成 (Look4Sat 代码 GPL-3.0 + DeepCW 模型
  AGPL-3.0-only, 合并作品按 AGPL-3.0 分发)
- 正文为 AGPL-3.0 原文 (从 DeepCW-AGPL-3.0.txt 复制)

原 GPL-3.0 原文保留在 feature/cw/licenses/Look4Sat-GPL-3.0.txt。
README License 章节同步更新,与新 LICENSE 一致。

此后 GitHub 侧边栏将识别为 AGPL-3.0。
2026-08-13 10:19:57 +00:00
mckero 2e1d8b9c00 feat(cw): archive decoded history, polish the waterfall, document licensing
三个用户反馈一并解决:

1. 解码文字不再消失 (核心)
   旧实现: 20 秒环形缓冲满了就静默覆盖最旧样本, 文字随之从屏幕消失。
   新实现: CwDeepBuffer 新增 overflow —— 满时被覆盖的旧样本先进 overflow,
   解码器累积到 15 秒就单独解码一次, 结果追加到 historyText (只增不减)。
   UI 记录区显示 historyText + decodedText (历史稳定 + 当前窗口实时)。
   ICwDecoder 接口新增 historyText StateFlow。

   归档音频已离开主窗口, 不再被 CTC 修正, 故其文本是"最终版", 追加安全。
   归档窗口 15 秒: 内容已在 20 秒窗口里解过多次, 短一点几乎无损, 且推理
   开销小。

2. 瀑布图更好看
   配色从"深蓝->青->黄"换成 matplotlib inferno (黑->紫->品红->橙->黄),
   与静态频谱图保持一致。相邻 bin 之间用水平渐变做线性插值, 消除 65 列
   离散方块的像素感。

3. AGPL 合规补漏 (用户提醒: 仓库许可证没体现 AGPL 组件)
   README 新增 License 章节: 声明项目主体 GPL-3.0 + feature/cw 的 DeepCW
   模型 AGPL-3.0-only, 并说明合并作品按 GPL-3.0 §13 / AGPL-3.0 §13 处理。

验证:
- :core:domain:test => 31 个 CW 测试全绿 (CwDeepBufferTest 新增 3 个
  overflow 归档测试: 顺序/清空/reset)
- :core:domain:compileKotlin + :core:data + :feature:cw:compileDebugKotlin
  => BUILD SUCCESSFUL
2026-08-13 08:04:05 +00:00
mckero f42d1f6c57 docs(cw): add DEEPCW.md recording DeepCW architecture, pitfalls, verification
记录 feature:cw 模块的完整集成知识, 供后续维护者免于重走弯路:
- 架构分层 (core:domain 纯 Kotlin 前后处理 / core:data ONNX 推理 / feature:cw UI)
- 模型规格与 int8/fp32 双版本取舍 (APK 内置 int8, fp32 作为 release 资产)
- 真机 release-only 的五个坑 (R8 keep / 惰性加载 / 线程 / 跨线程状态 / 双录音)
- 验证结果 (golden vector 79 测试 / 服务器端到端逐字符一致 / 真机 40WPM)

该文档与 skill 的 §7.55 根因坑互为参照: skill 记方法论, 这里记本模块实况。
2026-08-13 04:14:01 +00:00
mckero e0405b541f fix(cw): prevent double AudioRecord when toggling capture
CwDecodeScreen 的 LaunchedEffect 原先用内层 launch{} 启动音频采集。
isListening 在权限授予后由 false->true->(授予回调再次置 true), 加上
LaunchedEffect(isListening, permissionGranted) 的双 key 重启, 会造成
前一个 audioFlow().collect 尚未取消、新的又启动 —— 两个 AudioRecord
同时录音, 内存翻倍、音频混叠, 是低内存机 OOM 崩溃的实锤级嫌疑。

改为在 LaunchedEffect 协程体内直接 collect (取消时随父协程及时停止),
并保持 (isListening, permissionGranted) 双 key 以正确处理权限授予后
需要重启采集的情形。

同时清理不再使用的 kotlinx.coroutines.launch import。

验证: :feature:cw:compileDebugKotlin => BUILD SUCCESSFUL
2026-08-13 03:16:36 +00:00
mckero c374058e1d perf(cw): ship int8-quantized DeepCW model (15MB -> 4MB)
用户真机闪退回桌面且无任何 Java 日志 => 高度怀疑进程被系统 LMK 杀掉
(内存不足) 或 native 层崩溃。模型加载 + ONNX 引擎初始化存在瞬时内存峰值,
fp32 模型 15MB 会放大这个峰值。

用 onnxruntime.quantization.quantize_dynamic 把模型权重动态量化为 QUInt8
(激活保持 float32):

- 体积: 15,139,839 -> 4,248,808 字节 (缩小 71%)
- 输入/输出名、形状、dtype 完全不变 -> Kotlin 代码无需改动
- 实测 CER (合成 CW 音频, fp32 vs int8 逐字符对比):
  SNR>=0dB 完全一致; -4dB 起两者一同劣化, 无显著差异
- onnx.checker 校验通过

AGPL 合规: NOTICE.md 记录派生信息 (原文件 SHA/量化后 SHA/转换步骤),
量化属模型修改, 按 AGPL 要求如实声明。复现命令已更新。

验证: :core:domain:test => 79 tests 全绿 (golden vector 测试锁定的是
频谱图前处理, 与模型文件无关)
2026-08-13 01:02:04 +00:00
mckero 5f297f9233 fix(cw): stop the waterfall crashing and cut APK size by 87MB
三个真机实测暴露的问题:

1. 闪退 (给权限后 3-4 秒必崩, 且注入日志抓不到堆栈)
   CwWaterfallState 用 mutableIntStateOf 记录重绘版本号, 却从音频采集线程
   写入。Compose 快照状态只能在合成线程修改, 从后台线程写会在运行时崩溃 ——
   崩在 Compose 内部, 所以业务类的日志注入抓不到。
   改用 MutableStateFlow (本身线程安全), Canvas 侧 collectAsState 读取。

2. 同一状态的跨线程数据竞争
   pushSamples 在采集线程写 rows/pending, snapshot() 在绘制线程读, 而
   ArrayDeque 非线程安全 —— 并发 removeFirst()/toList() 会抛
   ConcurrentModificationException 或 IndexOutOfBoundsException。
   两侧统一加锁; FFT 计算放在锁外, 只有队列追加持锁。

3. APK 从 8.4MB 暴涨到 135MB
   onnxruntime-android 的 AAR 自带 4 个架构原生库: arm64 28M + armv7 20M +
   x86 33M + x86_64 34M = 115MB。上次提交移除 abiFilters 时把 x86 系列也
   打包了进去 (仅模拟器需要)。
   重新加上 abiFilters, 保留 arm64-v8a + armeabi-v7a 两个真机 ABI,
   预计降至约 43MB。注意这与上次"恢复 64 位"不冲突: 那次删的是只留
   armeabi-v7a 的限制, 这次是排除 x86 系列。

另外两处加固:
- CwDeepDecoder 的模型加载从 init{} 移入惰性 ensureLoaded(): 加载会触发
  ONNX Runtime 原生库装载, 失败时抛 UnsatisfiedLinkError; 在构造函数中抛出
  会连带崩掉创建它的 composable, try-catch 也救不回来。移到首次使用时执行,
  失败经 errorMessage 上报给 UI。
- ONNX 会话限制 intraOp 线程数为 (核数-1) 且上限 4, 给音频采集和 UI 留出
  余量, 默认行为会铺满所有核心。

验证:
./gradlew :feature:cw:compileDebugKotlin :core:data:compileDebugKotlin => 通过
./gradlew :core:domain:test => 79 个测试全绿
2026-08-12 13:55:03 +00:00
mckero 9b0d543f12 refactor(cw)!: replace legacy CW engine with DeepCW in both entry points
DeepCW 成为唯一 CW 解码内核, 不保留旧引擎作兜底 (用户决定: 完全移植)。

删除旧内核 (1298 行):
- CwDecoder.kt / CwBayesianDecoder.kt / CwChannelTracker.kt / CwSpectrogram.kt
- CwDsp / CwFFT / CwSTFFT / CwGoertzel / CwFilter / CwResampler.kt
- CwDecoderTest.kt
旧内核的自动定频与 squelch 门控由 DeepCW 的 400-1200Hz 固定频窗替代 ——
模型自带定频, 不再需要频谱峰值跟踪和噪声门。

两个 CW 入口都改接 DeepCW:
1. feature:cw 独立整页 CwDecodeScreen.kt 重写为纯 Compose (瀑布图 -> 实时行
   -> 历史区), 移除 AndroidView/LayoutInflater 和被删的 activity_main 布局;
   删除 CwSettingsDialog.kt (旧引擎的手动音调/带宽面板, DeepCW 全自动无需)
2. feature:radar 内嵌可折叠面板改走 ViewModel 的 CW state/action, 移除
   Morse Expert 控制器与 cw_panel_main 布局
   (该面板此前注释写明 "no longer feeds it", ViewModel 里的 CW 通路是死代码)

新增 CwWaterfall.kt: 复用 CwDeepSpectrogram 绘制瀑布图, 显示的正是模型
分析的 400-1200Hz 频段与同一批幅值。

接口接线:
- IMainContainer.provideCwDecoder() 提供 ICwDecoder (实现需 Context 读 assets)
- RadarViewModel 构造新增 cwDecoderFactory, onCleared() 中 close() 释放
  OrtSession 避免原生内存泄漏
- 删除已无调用方的 RadarAction.CwSetToneFreq (DeepCW 定频固定, 无参数可调);
  CwSubState.cwToneFreq 语义改为只读显示检测到的音调

依赖清理:
- feature:radar 不再依赖 feature:cw 与 constraintlayout
- feature:cw 不再依赖 constraintlayout

字符串: feature:cw 清理 Morse Expert 遗留串 (premium/rate/help/
tap_back_again_to_close/purple_500), 按 en/zh/tr/in/id 五语补全新串;
core:presentation 补 radar_cw_tone / radar_cw_waiting 五语。

验证:
./gradlew :core:domain:test => 4 个测试类全绿
./gradlew :feature:cw:compileDebugKotlin => BUILD SUCCESSFUL
./gradlew :feature:radar:compileDebugKotlin => BUILD SUCCESSFUL
./gradlew :core:data:compileDebugKotlin => BUILD SUCCESSFUL
2026-08-12 13:00:25 +00:00
mckero 86ab1b26b7 feat(cw): vendor DeepCW ONNX model with full AGPL-3.0 compliance
背景:
DeepCW (e04/deepcw-engine) 是基于 CTC 的神经网络 CW 解码模型。本地实测
弱信号解码率显著优于传统 DSP 方案: SNR<0dB 时 CER 16.0% vs ggmorse 52.6%;
SNR>=0dB 时两者均接近 0%。模型 400-1200Hz 固定频窗自带定频, 无需频谱峰值
跟踪与噪声门。

改动:
- assets/deepcw/model.onnx      15,139,839 字节, 原样收录未作修改
- assets/deepcw/model.onnx.json 模型元数据 (采样率 3200, FFT 256, hop 48,
  65 个频段, log1p 归一化, 42 类含 CTC blank)
- licenses/DeepCW-AGPL-3.0.txt  AGPL-3.0 许可证全文
- licenses/NOTICE.md            来源仓库/作者/取用 commit/SHA-256/
  许可证兼容性说明/复现步骤
- app/build.gradle.kts: androidResources.noCompress += "onnx"

关于 noCompress:
ONNX Runtime 通过 mmap 直接读取 assets, 压缩后无法内存映射, createSession
会失败。该配置只在打包 APK 的 app 模块生效, 在 feature 库模块声明无效。

许可证:
Look4Sat 为 GPL-3.0-or-later, DeepCW 模型为 AGPL-3.0-only。GPL v3 第 13 条
明确允许两者合并分发。推理完全在本地设备进行, 不通过网络向远程用户提供
模型功能, 故 AGPL 第 13 条的网络源码提供义务不被触发。本仓库公开, 完整
对应源码提供义务已满足。

上游取用 commit: 8e264d243bbd4467bd19f3f28292219405b47e0e
模型 SHA-256: ef120799457bca042d4690944f0faf93268eb4654e7f50f28784ad63bdc1fe02
2026-08-12 11:47:02 +00:00
mckero de6c964136 build!: drop armeabi-v7a abiFilters, restore 64-bit builds
背景:
abiFilters=armeabi-v7a 的唯一成因是 Morse Expert 的 32 位
libnativedecoderjni.so, 该 .so 已在上一提交删除。此前整个应用被迫以
32 位运行: 64 位设备走兼容层、寻址受限, 且不满足应用市场的 64 位要求。
原注释称"用户设备为 32 位软件"已与实际不符 (测试机为 64 位)。

改动:
- app/build.gradle.kts: 移除 defaultConfig.ndk.abiFilters 及相关注释
- feature/cw/build.gradle.kts: 移除 abiFilters; 移除 constraintlayout 依赖
  (仅被已删除的 activity_main.xml 使用); 移除 UTF-8 JavaCompile 配置
  (模块已无 Java 源码)
- feature/cw 改为依赖 core:domain + core:data (DeepCW 前后处理落在 core)

验证:
grep -rn 'abiFilters|jniLibs' --include=*.kts . (排除 build/) => 无匹配
APK ABI 覆盖将在 CI 产物中验证 (预期含 arm64-v8a)
2026-08-12 11:44:54 +00:00
mckero e477851adf refactor(cw)!: remove reverse-engineered Morse Expert engine and 32-bit JNI blob
背景:
feature/cw 内含 Morse Expert 1.15 (VE3NEA, 闭源免费软件) 的 jadx 反编译产物,
外加仅 armeabi-v7a 的 libnativedecoderjni.so (1.4MB)。该 .so 无 64 位版本,
迫使 app 模块设置 abiFilters=armeabi-v7a, 把整个应用锁死在 32 位。
闭源软件的反编译产物不具备任何分发授权。

改动 (共 58 项):
- 删除 pas/* (JNI 入口 nativedecoder/decoder/cwstru/system)
- 删除 com/ve3nea/morse_expert/* (MainActivity/DecodedTextView/ScaleView/
  WaterfallSurfaceView)
- 删除混淆包 B B0 D E2 F2 H2 I0 I2 J2 K1 d1 g3 i3 j1 j3 k3 s
- 删除 suncompat/* (sun.misc.Unsafe/Cleaner 存根)
- 删除 jniLibs/armeabi-v7a/libnativedecoderjni.so
- 删除配套 layout (activity_main, cw_panel_main)、menu、4 个 ic_baseline_* 图标
- proguard-rules.pro 清空 keep 规则 (已无 JNI 按类名注册依赖)

验证:
find feature/cw/src -name '*.java' | wc -l   => 0
find feature/cw/src -name '*.so'   | wc -l   => 0
git ls-files feature/cw 仅剩 build.gradle.kts, proguard-rules.pro,
CwDecodeScreen.kt, CwSettingsDialog.kt 及 5 份 app_values.xml

注意: 本提交后 CwDecodeScreen.kt 暂时无法编译 (它 inflate 了已删除的
R.layout.activity_main), 将在 DeepCW 内核接入后重写为纯 Compose。

后续: DeepCW ONNX 内核接入 (纯 Kotlin 前后处理), abiFilters 解除恢复 arm64。
2026-08-12 11:42:53 +00:00
mckero c9cab8457d chore(i18n): translate all code comments to English
All Chinese comments (//, /* */, KDoc) across core/app/feature/build-
logic translated to English (550 lines, 73 files after FT8 rollback).
Code logic untouched - comment text only. Verified: all modules
compileDebugKotlin BUILD SUCCESSFUL.
2026-08-05 07:59:35 +00:00
mckero 2777607ab5 fix(i18n): drop values-b+in (duplicates values-in under aapt2)
aapt2 treats in/b+in as the same locale config as id -> Duplicate
resources build failure. in and id are equivalent in Android's
resource matcher (both normalize to id), so values-in + values-id
is sufficient coverage for Indonesian devices.
2026-08-04 16:18:50 +00:00
mckero a222cbb839 fix(i18n): use BCP-47 values-b+in for Indonesian legacy locale
values-in-rID did not survive aapt2 linking (normalized away).
Switch to values-b+in (BCP-47) which compiles cleanly and keeps an
explicit "in" language config alongside values-id. Verified: aapt2
compile of values-in/values-id/values-b+in OK.
2026-08-04 16:16:40 +00:00
mckero 0ef8f05dc4 fix(i18n): keep legacy "in" locale config for old Indonesian devices
Root cause: aapt2 merges values-in into values-id (in is the legacy
alias of id), so the APK only carried the (id) config. New devices
report "id" and match; older devices report "in" and find no (in)
config -> fall back to English (friend's report: only system date
showed Indonesian).

Fixes:
- Add values-in-rID (core/presentation + feature/cw) so the APK
  keeps a real "in" language config; values-in and values-id both
  get translatable="false" on the 27 entries that English marks
  (aapt2 rejects those with multiple %-substitutions otherwise)
- Verified: aapt2 compile of values/values-in/values-id/values-in-rID
  OK; :core:presentation:mergeDebugResources + :feature:cw:mergeDebugResources
  BUILD SUCCESSFUL
2026-08-04 16:04:04 +00:00
mckero a724c0823d fix(i18n): add values-id resource dir so Indonesian devices pick the locale
Friend's device (system language Bahasa Indonesia) fell back to
English even though values-in exists. Modern Android devices report
the Indonesian locale as "id" (ISO-639-1 current code; "in" is the
legacy alias) and resource matching is strict. Added values-id as a
copy of values-in in core/presentation and feature/cw (both language
directories ship the same translations).

Verified: check_strings OK (9 files incl. values-id);
:app:compileDebugKotlin BUILD SUCCESSFUL. Not released (batch with
pending fixes).
2026-08-04 14:18:00 +00:00
mckero 38cf7a3569 feat(nav,settings): bottom nav 5+N collapsible menu + Indonesian locale
Background: 8 bottom-nav items squeeze long English labels on narrow
screens. 4.5.1 introduces the 5+N pattern: 5 main tabs plus a fixed
6th "More" button that pops a second-level menu (spring bounce) with
the remaining pages.

Changes:
- MainScreen: nav split into main (<=5, screenOrder-driven) + more
  (subMenuOrder); More button with popup panel + spring animation;
  BackHandler closes the menu before navigating back
- MoreMenuPopup: bottom-end card, current page highlighted, scrim
  click to dismiss
- UI Settings: page order card now has two zones (main menu, max 5,
  Settings locked last with no drag handle / more menu); move buttons
  between zones, drag-to-reorder within zones; new subMenuOrder pref
- Defaults: main = Satellites/Passes/Radar/Map/Settings,
  more = Mutual/Roaming/CwDecode; old screenOrder migrates by
  classifying pages against the default sub menu
- Hard-coded UI strings localized (Tracking/Lat/Lon/Qth/Connect/
  Track/Stop/CW permission prompts) into EN/ZH/TR
- NEW Indonesian locale (values-in, 181 strings + cw module strings)
  - user rule: every future release must update EN/ZH/TR/IN
- Version 4.5.1 (451)

Verified: check_strings.py OK (8 files, no bare apostrophes);
:app:compileDebugKotlin BUILD SUCCESSFUL locally.
2026-08-04 08:58:05 +00:00
mckero 47f3e424ff feat(radar,cw): transponder CW panel switches to the Morse Expert engine
Background: the transponder panel CW decoder (added by the upstream
fork author) used a lightweight Kotlin Bayesian engine (core/domain/cw,
kept untouched as a fallback). This change makes the panel use the
Morse Expert engine ported in 4.5.0, so both CW entry points share the
same decoder with a live waterfall.

Changes:
- New mini layout cw_panel_main.xml (waterfall 80dp + decoded text,
  status line hidden but ID kept for controller lookup)
- MainActivity.onCreate overload with applyImmersive flag; panel binds
  with false so the host window system bars are not touched
- CwDecoderPanel now embeds the mini layout via AndroidView and drives
  the MainActivity controller: start/stop/reset map to the engine,
  lifecycle follows panel expand (start) / collapse (release mic)
- radar module now depends on feature:cw (+ constraintlayout 2.2.1,
  same as cw) for layout + controller reuse
- What's new rewritten in EN/TR/ZH for this release only

Verified: :feature:radar:compileDebugKotlin and :app:compileDebugKotlin
BUILD SUCCESSFUL locally; check_strings.py OK (7 files, no bare
apostrophes).
2026-08-04 07:56:11 +00:00
mckero f731775346 fix(cw): repair FFT pipeline (NaN twiddle table + dead cond_22 path)
The waterfall showed mirrored/upside-down garbage because the FFT
never produced a valid spectrum:
1. g3.c.f() (high-precision sin) had its quadrant-0 case mangled by
   jadx into a nested-if that returned NaN for small angles - the
   twiddle factor table ended up with 329/1024 NaN entries.
   Restored the smali switch: case0->g(), case1->c(), case2->-g(),
   case3->-c().
2. i3.d.k() routed the runtime FFT (a5==0, single-thread path) into
   the else of if(a5!=1) instead of if(a5!=0), so the FFT never ran
   and the output stayed in the time domain (peak at bin 357 for a
   669Hz tone instead of bin 86).

Verified with a JVM harness (static-block tables + pure-tone inputs):
200Hz->bin26, 400Hz->bin51, 669Hz->bin86, 1000Hz->bin128, all exact.
Twiddle table NaN count: 329 -> 0.
2026-08-04 06:55:03 +00:00
mckero 3c5486cc5c fix(cw): restore FFT dispatch (cond_22), CW UI settings entry, default order
Decode page showed stats but empty waterfall and no decoded text:
the ported i3/d.k() FFT dispatch was broken by a jadx structure
misplacement - the runtime path (k=1 -> a5=0 -> cond_22 single-thread
FFT) was replaced by a hallucinated `throw null` else-branch while the
real cond_22 code sat in a dead else. Verified against smali
(7030-7263): j3.c.q forward FFT + post-processing loop + tail + small-
array branch now live in the a5==0 branch.

Also:
- UiSettingsCard now lists CwDecode (toggle + drag-reorder) between
  Roaming and Map
- unknown screenIds in persisted screenOrder fall back to
  defaultScreenOrder position (CwDecode lands between Roaming and Map
  for existing users instead of trailing after Settings)

Verified: :feature:cw + :feature:settings + :app compileDebugKotlin
BUILD SUCCESSFUL.
2026-08-04 05:36:48 +00:00
mckero 544515feba fix(cw): restore app label, fix R8 code stripping, force 32-bit ABI
Three release-breaking issues found in the v4.5.0 APK (app crashed on
launch, label showed "Morse Expert", dex shrank to 282KB vs 3.5MB):
1. app_name: the ported app_values.xml shipped a "Morse Expert"
   app_name string which overrode Look4Sat Pro's label during resource
   merging - removed (no other string collisions).
2. R8 stripped nearly all code: the in-app sun.misc.Unsafe/Cleaner
   stubs clashed with android.jar library classes. Moved stubs to
   com.rtbishop.look4sat.feature.cw.suncompat and updated k3.d/s/r
   imports (k3.r keeps the reflective Class.forName("sun.misc.Unsafe")
   string, which returns null on Android hidden-API limits).
3. proguard-rules.pro added (AGP 9 variant-level
   CanProduceConsumerProguardFiles): keep pas.** (JNI RegisterNatives
   resolves by class name) plus all ported CW classes.
4. app-level ndk abiFilters forced to armeabi-v7a: the ported
   libnativedecoderjni.so is v7a-only, so a multi-ABI APK would crash
   with UnsatisfiedLinkError on arm64 devices.

Verified: :feature:cw:compileDebugKotlin BUILD SUCCESSFUL.
2026-08-04 04:56:41 +00:00
mckero 8bc1f16e2c feat(cw): wire CW decoder page into navigation (between Roaming and Map)
Compose integration of the ported CW decoder engine:
- CwDecodeScreen: AndroidView embedding the ported activity_main.xml,
  lifecycle delegated to the ported MainActivity controller (onCreate ->
  onResume, onDispose -> onPause/onDestroy), RECORD_AUDIO runtime
  permission flow (with permanent-denial -> app settings), original
  options_menu actions as a top button row (pause/clear/save/record/
  settings), double-back-to-exit preserved
- CwSettingsDialog: message_type (general_text/ham_radio_qso),
  text_font_size (7-99), and the 9 color keys (bg_color/text_color/...)
  reading/writing the same prefs keys as the original app
  (getPackageName()+"_preferences"), colors sourced from I2.b tables
- Navigation: Screen.CwDecode ("CwDecode") placed between Roaming and
  Map in the default order; defaultScreenOrder updated; ic_cw morse icon;
  nav_cw strings (en/zh/tr); app depends on :feature:cw

Verified: :feature:cw:compileDebugKotlin + :app:compileDebugKotlin
BUILD SUCCESSFUL (first pass, no errors).
2026-08-04 04:06:31 +00:00
mckero 5dc7ce6a22 feat(cw): port Morse Expert 1.15 CW decoder engine (feature:cw compiles)
Full port of the CW/Morse decoder from Morse Expert 1.15
(com.ve3nea.morse_expert), preserving obfuscated class names and logic.
Ads (gms.ads), billing (BillingClient), and library code were removed per
user; SettingsActivity deferred to Compose integration.

Ported modules:
- pas.*: decoder engine interface + JNI (libnativedecoderjni.so, armeabi-v7a)
- k3.*: FFT library (pseudo-enum q rewritten from smali; sun.misc stubs
  for Unsafe/Cleaner since Android lacks them; FFT path uses float[] branch)
- i3.*, g3.*, j3.*, s.*, d1.AbstractC1518b: DSP/sin-cos tables (long[] tables
  f/f11589g restored from smali)
- H2.a/b: audio capture + decode control core (jadx catch-block illusions
  cleaned per smali; recording try/catch restored around write block)
- J2.a/b: waterfall OpenGL renderer + palette (r10 = anchor color per smali)
- E2.g: waterfall touch frequency picker (height = ScaleView per smali)
- B0.b/B.RunnableC0001b: status-bar + decoded-text UI runnables (real
  constructors recovered from smali)
- MainActivity → controller class (Activity injected; immersive status bar
  inlined); C1646n trimmed to view holder; D.n keeps waterfall texture case
- F2.a: text selection menu (Save/Share)

Verified: :feature:cw:compileDebugJavaWithJavac BUILD SUCCESSFUL.
2026-08-04 03:57:25 +00:00