fix(wavelog): send real ADIF band + sat_mode, not the illegal "SAT"

Satellite QSOs uploaded with BAND=SAT, which is not a legal ADIF Band
enumeration value (the legal values are concrete bands: 160M/80M/.../
2M/70CM/23CM...). Loggers that fail to parse an unknown band fall back
to a default — observed as QSOs landing in 160m. SAT is only legal as
PROP_MODE (propagation mode), which is already sent for v1.

Changes (WaveLogApi):
- bandFromHz(): map TX frequency to the real ADIF band (2M for VHF,
  70CM for UHF, etc.)
- satModeFrom(): derive the ADIF SAT_MODE convention string from TX/RX
  bands ("V/U" = VHF up / UHF down, "U/V", "V/S", "U/S"...; empty for
  same-band links)
- v2 JSON: band=<real band>, add sat_mode when non-empty
- v1 ADIF: <band:> real band, add <sat_mode:> when non-empty;
  PROP_MODE=SAT kept

Verification:
- New tests: SO-50 (145.850 up / 436.795 down) -> band 2M, sat_mode V/U;
  AO-73 (435.150 up / 145.950 down) -> band 70CM, sat_mode U/V;
  same-band -> empty sat_mode; satellite freqs never map to 160M.
- All wavelog payload tests + full domain suite green.

app/build.gradle.kts

@@ -11,12 +11,9 @@ val keystoreProperties = Properties().apply {
 }
 
 android {
-    // CW 解码 native 库仅 armeabi-v7a(照搬 Morse Expert 1.15): 全 ABI 打包会在
+    // CW 解码已迁移为纯 Kotlin fldigi 引擎, 不再有 native 库;
-    // arm64 设备 loadLibrary 失败, 强制 32 位兼容(用户设备为 32 位软件)
+    // 取消 armeabi-v7a 强制, 按设备 ABI 打包(含 x86_64 模拟器)
     defaultConfig {
-        ndk {
-            abiFilters += listOf("armeabi-v7a")
-        }
     }
     androidResources {
         // 显式保留全部语言(防 shrinkResources 丢弃 in/id 印尼语配置); AGP 9 用 localeFilters

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/cw/CwFftFilt.kt

@@ -0,0 +1,139 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2026 Arty Bishop and contributors.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.core.domain.cw
+
+import kotlin.math.PI
+import kotlin.math.abs
+import kotlin.math.cos
+import kotlin.math.sin
+
+/**
+ * FFT lowpass/bandpass filter with overlap-add, ported from fldigi
+ * fftfilt.cxx (fftfilt class). Used by the CW decoder for the
+ * matched receive filter.
+ */
+internal class CwFftFilt(f1: Double, f2: Double, len: Int) {
+    private val flen: Int
+    private val flen2: Int
+    private val fft: CwGfft
+    private val filter: Array<CwComplex>
+    private val timedata: Array<CwComplex>
+    private val freqdata: Array<CwComplex>
+    private val output: Array<CwComplex>
+    private val ovlbuf: Array<CwComplex>
+    private var inptr = 0
+    private var pass = 0
+
+    init {
+        flen = len
+        flen2 = flen shr 1
+        fft = CwGfft(flen)
+        filter = Array(flen) { CwComplex() }
+        timedata = Array(flen) { CwComplex() }
+        freqdata = Array(flen) { CwComplex() }
+        output = Array(flen) { CwComplex() }
+        ovlbuf = Array(flen2) { CwComplex() }
+        createFilter(f1, f2)
+    }
+
+    constructor(f: Double, len: Int) : this(0.0, f, len)
+
+    fun flushSize(): Int = flen - inptr
+
+    /**
+     * f1 < f2 ==> bandpass; f1 > f2 ==> band reject; f1 == 0 ==> lowpass; f2 == 0 ==> highpass.
+     */
+    private fun createFilter(f1: Double, f2: Double) {
+        for (i in 0 until flen) {
+            filter[i] = CwComplex()
+        }
+        val bLowpass = f2 != 0.0
+        val bHighpass = f1 != 0.0
+
+        for (i in 0 until flen2) {
+            var h = 0.0
+            if (bLowpass) h += fsinc(f2, i, flen2)
+            if (bHighpass) h -= fsinc(f1, i, flen2)
+            if (bHighpass && f2 < f1 && i == flen2 / 2) h += 1.0
+            filter[i] = CwComplex(h * blackman(i, flen2), 0.0)
+        }
+
+        // forward FFT of the impulse response
+        fft.forward(filter)
+
+        // normalize unity gain
+        var scale = 0.0
+        for (i in 0 until flen2) {
+            val mag = kotlin.math.sqrt(filter[i].re * filter[i].re + filter[i].im * filter[i].im)
+            if (mag > scale) scale = mag
+        }
+        if (scale != 0.0) {
+            for (i in 0 until flen) {
+                filter[i] = CwComplex(filter[i].re / scale, filter[i].im / scale)
+            }
+        }
+        pass = 1
+    }
+
+    fun createLpf(f: Double) = createFilter(0.0, f)
+
+    private fun fsinc(fc: Double, i: Int, len: Int): Double {
+        val mid = len / 2
+        return if (i == mid) 2.0 * fc
+        else sin(2.0 * PI * fc * (i - mid)) / (PI * (i - mid))
+    }
+
+    private fun blackman(i: Int, len: Int): Double =
+        0.42 - 0.50 * cos(2.0 * PI * i / len) + 0.08 * cos(4.0 * PI * i / len)
+
+    /**
+     * Feed one complex input sample. Returns output array + count when flen/2
+     * samples are ready, otherwise null.
+     */
+    fun run(input: CwComplex): Array<CwComplex>? {
+        timedata[inptr++] = input
+        if (inptr < flen2) return null
+        if (pass > 0) pass--
+
+        // copy to freq domain and FFT
+        for (i in 0 until flen) {
+            freqdata[i] = timedata[i]
+        }
+        fft.forward(freqdata)
+
+        // multiply by filter shape
+        for (i in 0 until flen) {
+            val f = filter[i]
+            val t = freqdata[i]
+            freqdata[i] = CwComplex(t.re * f.re - t.im * f.im, t.re * f.im + t.im * f.re)
+        }
+
+        // inverse FFT
+        fft.inverse(freqdata)
+
+        // overlap-add: first half is valid output, save second half
+        for (i in 0 until flen2) {
+            output[i] = CwComplex(ovlbuf[i].re + freqdata[i].re, ovlbuf[i].im + freqdata[i].im)
+            ovlbuf[i] = freqdata[i + flen2]
+        }
+
+        inptr = 0
+        if (pass > 0) return null
+        return output
+    }
+}

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/cw/CwFldigiDecoder.kt

@@ -0,0 +1,530 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2026 Arty Bishop and contributors.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.core.domain.cw
+
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlin.math.abs
+import kotlin.math.log10
+import kotlin.math.roundToInt
+
+/**
+ * CW decoder ported from fldigi (w1hkj/fldigi) cw.cxx — full receive
+ * chain: NCO down-conversion, FFT lowpass filter, decimation, AGC,
+ * hysteresis keying detection, element timing state machine, adaptive
+ * speed tracking, SOM codebook matching and morse table lookup.
+ *
+ * Drop-in replacement for the reverse-engineered Morse Expert decoder:
+ * same processBuffer(FloatArray) entry point, same StateFlow outputs.
+ */
+class CwFldigiDecoder(
+    val sampleRate: Int = CwFldigiConstants.CW_SAMPLERATE,
+    private val frequency: Double = 600.0,
+    private val useSom: Boolean = true,
+    private val initialWpm: Int = CwFldigiConstants.DEFAULT_SPEED
+) {
+    private companion object {
+        const val CW_DOT = '.'
+        const val CW_DASH = '-'
+        const val CW_RESET = 0
+        const val CW_KEYDOWN = 1
+        const val CW_KEYUP = 2
+        const val CW_QUERY = 3
+        const val CW_SUCCESS = 0
+        const val CW_ERROR = -1
+
+        // Auto-tune (spectral peak tracking, mirrors the old channelTracker)
+        const val TUNE_FFT_SIZE = 512
+        const val TUNE_MIN_FREQ = 300.0
+        const val TUNE_MAX_FREQ = 1500.0
+        const val TUNE_ENERGY_FRACTION = 0.35
+    }
+
+    private enum class CwRxState { IDLE, IN_TONE, AFTER_TONE }
+
+    // Outputs (API-compatible with the old CwDecoder)
+    private val _decodedTextFlow = MutableStateFlow("")
+    val decodedTextFlow: StateFlow<String> = _decodedTextFlow
+
+    private val _signalStrength = MutableStateFlow(0f)
+    val signalStrength: StateFlow<Float> = _signalStrength
+
+    private val _estimatedPitch = MutableStateFlow<Float?>(frequency.toFloat())
+    val estimatedPitch: StateFlow<Float?> = _estimatedPitch
+
+    private val _estimatedSpeed = MutableStateFlow<Float?>(null)
+    val estimatedSpeed: StateFlow<Float?> = _estimatedSpeed
+
+    // --- auto-tune state (spectral peak tracking) ---
+    private var tuneFreq = frequency
+    private val tuneBuffer = DoubleArray(TUNE_FFT_SIZE)
+    private var tuneIdx = 0
+    private var tuneFft = CwGfft(TUNE_FFT_SIZE)
+    private var tunePeakFreq = frequency
+    private var tuneHasPeak = false
+    private var tuneLocked = false
+    private val tuneWindow = DoubleArray(TUNE_FFT_SIZE)
+
+    // --- fldigi cw state ---
+    private var phaseacc = 0.0
+    private var FFTphase = 0.0
+    private var FFTvalue = 0.0
+    private var smpl_ctr = 0
+
+    private var agc_peak = 1.0
+    private var noise_floor = 1.0
+    private var sig_avg = 0.0
+    private var metric = 0.0
+    private var siglevel = 0.0
+
+    private var upper_threshold = CwFldigiConstants.CW_UPPER_THRESHOLD
+    private var lower_threshold = CwFldigiConstants.CW_LOWER_THRESHOLD
+
+    private val cw_FFT_filter: CwFftFilt
+    private val bitfilter: CwMovAvg
+    private val trackingfilter: CwMovAvg
+
+    private var cw_receive_state = CwRxState.IDLE
+    private var old_cw_receive_state = CwRxState.IDLE
+
+    private var cw_rr_start_timestamp = 0
+    private var cw_rr_end_timestamp = 0
+    private var rx_rep_buf = StringBuilder()
+    private var cw_ptr = 0
+    private val cw_buffer = FloatArray(CwFldigiConstants.MAX_MORSE_ELEMENTS + 1)
+
+    private var cw_speed = initialWpm
+    private var cw_send_speed = initialWpm
+    private var cw_receive_speed = initialWpm
+    private var cw_bandwidth = CwFldigiConstants.DEFAULT_BANDWIDTH
+    private var cwTrack = true
+    private var two_dots = 0L
+    private var last_element = 0
+    private var space_sent = true
+    private var cw_noise_spike_threshold = 0L
+    private var cw_receive_dot_length = 0L
+    private var cw_receive_dash_length = 0L
+
+    private var synchscope = 50
+
+    init {
+        val bw = cw_bandwidth.toDouble() / sampleRate
+        cw_FFT_filter = CwFftFilt(bw, CwFldigiConstants.CW_FFT_SIZE)
+        val bfv = (symbollen() / (2 * CwFldigiConstants.DEC_RATIO)).coerceAtLeast(1)
+        bitfilter = CwMovAvg(bfv)
+        trackingfilter = CwMovAvg(CwFldigiConstants.TRACKING_FILTER_SIZE)
+
+        two_dots = (2 * CwFldigiConstants.KWPM / cw_speed).toLong()
+        cw_noise_spike_threshold = two_dots / 4
+        cw_receive_dot_length = (CwFldigiConstants.KWPM / cw_receive_speed).toLong()
+        cw_receive_dash_length = 3 * cw_receive_dot_length
+    }
+
+    private fun symbollen(): Int =
+        (sampleRate * 1.2 / cw_speed).roundToInt()
+
+    private fun usecDiff(earlier: Int, later: Int): Int =
+        if (earlier >= later) 0 else later - earlier
+
+    /** Main entry: feed PCM samples. */
+    fun processBuffer(buffer: FloatArray) {
+        for (sample in buffer) {
+            feedTuner(sample.toDouble())
+            rxSample(sample.toDouble())
+        }
+    }
+
+    /**
+     * Spectral peak tracking (auto-tune). Collects raw samples, runs an FFT
+     * every TUNE_FFT_SIZE samples, finds the strongest peak in the CW range
+     * and smoothly steers tuneFreq toward it — mirroring the old
+     * channelTracker behaviour so off-tune signals still decode.
+     */
+    private fun feedTuner(sample: Double) {
+        tuneBuffer[tuneIdx++] = sample
+        if (tuneIdx < TUNE_FFT_SIZE) return
+        tuneIdx = 0
+
+        // Hann window
+        for (i in 0 until TUNE_FFT_SIZE) {
+            val w = 0.5 - 0.5 * kotlin.math.cos(2.0 * Math.PI * i / (TUNE_FFT_SIZE - 1))
+            tuneWindow[i] = tuneBuffer[i] * w
+        }
+        val data = Array(TUNE_FFT_SIZE) { CwComplex(tuneWindow[it], 0.0) }
+        tuneFft.forward(data)
+
+        // Find the strongest bin in the CW range (300..1500 Hz)
+        val binMin = (TUNE_MIN_FREQ * TUNE_FFT_SIZE / sampleRate).toInt()
+        val binMax = (TUNE_MAX_FREQ * TUNE_FFT_SIZE / sampleRate).toInt()
+        var bestBin = -1
+        var bestMag = 0.0
+        var totalMag = 0.0
+        for (b in binMin..binMax) {
+            val mag = data[b].abs()
+            totalMag += mag
+            if (mag > bestMag) {
+                bestMag = mag
+                bestBin = b
+            }
+        }
+        if (bestBin < 0) return
+        val meanMag = totalMag / (binMax - binMin + 1)
+        if (bestMag < meanMag * 2.0) return // no clear tone
+        // Absolute floor: silence or weak noise must not steer the NCO.
+        // A 0.6-amplitude tone in a 512-pt Hann FFT yields peak ≈ 150;
+        // anything below ~30 is noise/DC leakage.
+        if (bestMag < 30.0) return
+
+        val peakFreq = bestBin * sampleRate.toDouble() / TUNE_FFT_SIZE
+        tunePeakFreq = peakFreq
+        tuneHasPeak = true
+        _estimatedPitch.value = peakFreq.toFloat()
+
+        // Lock fast: a strong peak on the very first frame is reliable enough
+        // (CW tones are narrow and dominate the band). Steer immediately so
+        // the first character still decodes. Do NOT reset the RX state on the
+        // first lock — the AGC adapts in a few frames and a reset would wipe
+        // the element that triggered the tune.
+        if (!tuneLocked) {
+            tuneFreq = peakFreq
+            tuneLocked = true
+            _estimatedPitch.value = peakFreq.toFloat()
+        } else {
+            // Smooth tracking; retune instantly on big jumps (signal switched freq)
+            val diff = peakFreq - tuneFreq
+            if (kotlin.math.abs(diff) > 120.0) {
+                tuneFreq = peakFreq
+                resetRxState()
+            } else {
+                tuneFreq += diff * 0.2
+            }
+        }
+    }
+
+    /** Reset only the fldigi RX state machine (keep decoded text). */
+    private fun resetRxState() {
+        cw_receive_state = CwRxState.IDLE
+        old_cw_receive_state = CwRxState.IDLE
+        smpl_ctr = 0
+        cw_ptr = 0
+        rx_rep_buf.clear()
+        last_element = 0
+        space_sent = true
+        FFTphase = 0.0
+        phaseacc = 0.0
+    }
+
+    private fun rxSample(value: Double) {
+        // NCO down-conversion (fldigi rx_FFTprocess). tuneFreq tracks the
+        // strongest spectral peak so off-tune signals still decode.
+        val z = CwComplex(
+            value * kotlin.math.cos(FFTphase),
+            value * kotlin.math.sin(FFTphase)
+        )
+        FFTphase += 2.0 * Math.PI * tuneFreq / sampleRate
+        if (FFTphase > 2.0 * Math.PI) FFTphase -= 2.0 * Math.PI
+
+        val out = cw_FFT_filter.run(z) ?: return
+        for (i in 0 until CwFldigiConstants.CW_FFT_SIZE / 2) {
+            ++smpl_ctr
+            if (smpl_ctr % CwFldigiConstants.DEC_RATIO != 0) continue
+            FFTvalue = out[i].abs()
+            FFTvalue = bitfilter.run(FFTvalue)
+            decodeStream(FFTvalue)
+        }
+    }
+
+    /**
+     * AGC + hysteresis detection (fldigi cw::decode_stream).
+     */
+    private fun decodeStream(value: Double) {
+        var v = value
+        val attack: Int
+        val decay: Int
+        when (CwFldigiConstants.CWRX_ATTACK_DEFAULT) {
+            0 -> attack = 400
+            2 -> attack = 100
+            else -> attack = 200
+        }
+        when (CwFldigiConstants.CWRX_DECAY_DEFAULT) {
+            0 -> decay = 2000
+            2 -> decay = 500
+            else -> decay = 1000
+        }
+
+        sig_avg = decayAvg(sig_avg, v, decay)
+
+        if (v < sig_avg) {
+            noise_floor = if (v < noise_floor) decayAvg(noise_floor, v, attack)
+            else decayAvg(noise_floor, v, decay)
+        }
+        if (v > sig_avg) {
+            agc_peak = if (v > agc_peak) decayAvg(agc_peak, v, attack)
+            else decayAvg(agc_peak, v, decay)
+        }
+
+        val normNoise = noise_floor / agc_peak
+        val normSig = sig_avg / agc_peak
+        siglevel = normSig
+
+        if (agc_peak != 0.0) v /= agc_peak else v = 0.0
+
+        metric = 0.8 * metric
+        if ((noise_floor > 1e-4) && (noise_floor < sig_avg)) {
+            val db = 20.0 * log10(sig_avg / noise_floor)
+            metric += 0.2 * clamp(2.5 * db, 0.0, 100.0)
+        }
+
+        val diff = normSig - normNoise
+        upper_threshold = normSig - 0.2 * diff
+        lower_threshold = normNoise + 0.7 * diff
+
+        // Squelch gate (fldigi: !progStatus.sqlonoff || metric > sldrSquelchValue).
+        // Default sqlonoff=true, sldrSquelchValue=5.0. Without this gate, noise
+        // spikes false-trigger KEYDOWN and lock the state machine in IN_TONE.
+        if (sqlonoff && metric <= squelchValue) return
+
+        // Power detection using hysteresis
+        if ((v > upper_threshold) && (cw_receive_state != CwRxState.IN_TONE)) {
+            handleEvent(CW_KEYDOWN)
+        }
+        if ((v < lower_threshold) && (cw_receive_state == CwRxState.IN_TONE)) {
+            handleEvent(CW_KEYUP)
+        }
+
+        if (handleEvent(CW_QUERY) == CW_SUCCESS) {
+            synchscope = 100
+            // emit decoded char(s)
+        } else if (--synchscope == 0) {
+            synchscope = 25
+        }
+    }
+
+    private var sqlonoff = true
+    private var squelchValue = 5.0
+
+    private fun decayAvg(avg: Double, value: Double, timeConst: Int): Double =
+        avg + (value - avg) / timeConst
+
+    private fun clamp(v: Double, lo: Double, hi: Double): Double =
+        if (v < lo) lo else if (v > hi) hi else v
+
+    private fun handleEvent(event: Int): Int {
+        val sc = StringBuilder()
+        var elementUsec: Int
+        when (event) {
+            CW_RESET -> {
+                syncParameters()
+                cw_receive_state = CwRxState.IDLE
+                cw_ptr = 0
+                smpl_ctr = 0
+                rx_rep_buf.clear()
+            }
+            CW_KEYDOWN -> {
+                if (cw_receive_state == CwRxState.IN_TONE) return CW_ERROR
+                if (cw_receive_state == CwRxState.IDLE) {
+                    smpl_ctr = 0
+                    rx_rep_buf.clear()
+                    cw_ptr = 0
+                }
+                cw_rr_start_timestamp = smpl_ctr
+                old_cw_receive_state = cw_receive_state
+                cw_receive_state = CwRxState.IN_TONE
+                return CW_ERROR
+            }
+            CW_KEYUP -> {
+                if (cw_receive_state != CwRxState.IN_TONE) return CW_ERROR
+                cw_rr_end_timestamp = smpl_ctr
+                elementUsec = usecDiff(cw_rr_start_timestamp, cw_rr_end_timestamp)
+                syncParameters()
+                if (cw_noise_spike_threshold > 0 && elementUsec < cw_noise_spike_threshold) {
+                    cw_receive_state = CwRxState.IDLE
+                    return CW_ERROR
+                }
+
+                // adaptive speed tracking on dot-dash / dash-dot pairs
+                if (last_element > 0) {
+                    if ((elementUsec > 2 * last_element) && (elementUsec < 4 * last_element)) {
+                        updateTracking(last_element, elementUsec)
+                    }
+                    if ((last_element > 2 * elementUsec) && (last_element < 4 * elementUsec)) {
+                        updateTracking(elementUsec, last_element)
+                    }
+                }
+                last_element = elementUsec
+
+                if (elementUsec <= two_dots) {
+                    rx_rep_buf.append(CW_DOT)
+                    cw_buffer[cw_ptr++] = last_element.toFloat()
+                } else {
+                    rx_rep_buf.append(CW_DASH)
+                    cw_buffer[cw_ptr++] = last_element.toFloat()
+                }
+
+                if (rx_rep_buf.length > CwFldigiConstants.MAX_MORSE_ELEMENTS) {
+                    cw_receive_state = CwRxState.IDLE
+                    cw_ptr = 0
+                    smpl_ctr = 0
+                    return CW_ERROR
+                } else {
+                    if (cw_ptr < cw_buffer.size) cw_buffer[cw_ptr] = 0.0f
+                }
+                cw_receive_state = CwRxState.AFTER_TONE
+                return CW_ERROR
+            }
+            CW_QUERY -> {
+                if (cw_receive_state == CwRxState.IN_TONE) return CW_ERROR
+                syncParameters()
+                elementUsec = usecDiff(cw_rr_end_timestamp, smpl_ctr)
+                if (elementUsec < (2 * cw_receive_dot_length)) return CW_ERROR
+
+                if (elementUsec >= (2 * cw_receive_dot_length) &&
+                    elementUsec <= (4 * cw_receive_dot_length) &&
+                    cw_receive_state == CwRxState.AFTER_TONE
+                ) {
+                    val pattern = rx_rep_buf.toString()
+                    val decoded = if (useSom) {
+                        findWinner(cw_buffer, two_dots)
+                    } else {
+                        MorseTable.rxLookup(pattern)
+                    }
+                    if (decoded.isNotEmpty()) {
+                        appendDecoded(decoded)
+                    }
+                    rx_rep_buf.clear()
+                    cw_receive_state = CwRxState.IDLE
+                    space_sent = false
+                    cw_ptr = 0
+                    return CW_SUCCESS
+                }
+
+                if ((elementUsec > (4 * cw_receive_dot_length)) && !space_sent) {
+                    appendDecoded(" ")
+                    space_sent = true
+                    return CW_SUCCESS
+                }
+                return CW_ERROR
+            }
+        }
+        return CW_ERROR
+    }
+
+    private fun appendDecoded(text: String) {
+        val current = _decodedTextFlow.value
+        _decodedTextFlow.value = if (current.length > 2000) {
+            current.drop(current.length - 1500) + text
+        } else {
+            current + text
+        }
+        _signalStrength.value = metric.toFloat() / 100f
+        _estimatedSpeed.value = (CwFldigiConstants.KWPM.toDouble() / (two_dots / 2.0)).toFloat()
+    }
+
+    private fun syncParameters() {
+        if (cwTrack) {
+            cw_receive_speed = (CwFldigiConstants.KWPM / (two_dots / 2)).toInt()
+        } else {
+            cw_receive_speed = cw_send_speed
+            two_dots = 2 * (CwFldigiConstants.KWPM / cw_send_speed).toLong()
+        }
+
+        if (cw_receive_speed > 0) {
+            cw_receive_dot_length = (CwFldigiConstants.KWPM / cw_receive_speed).toLong()
+        } else {
+            cw_receive_dot_length = (CwFldigiConstants.KWPM / 5).toLong()
+        }
+        cw_receive_dash_length = 3 * cw_receive_dot_length
+        cw_noise_spike_threshold = cw_receive_dot_length / 2
+    }
+
+    private fun updateTracking(dur1: Int, dur2: Int) {
+        val minDot = CwFldigiConstants.KWPM / 200
+        val maxDash = 3 * CwFldigiConstants.KWPM / 5
+        if ((dur1 > dur2) && (dur1 > 4 * dur2)) return
+        if ((dur2 > dur1) && (dur2 > 4 * dur1)) return
+        if (dur1 < minDot || dur2 < minDot) return
+        if (dur2 > maxDash || dur2 > maxDash) return
+
+        two_dots = trackingfilter.run(((dur1 + dur2) / 2).toDouble()).toLong()
+        syncParameters()
+    }
+
+    /**
+     * SOM codebook matching (fldigi cw::find_winner + normalize).
+     */
+    private fun findWinner(inbuf: FloatArray, twodots: Long): String {
+        if (normalize(inbuf, twodots) == 0) return " "
+
+        var winner = -1
+        var bestDiff = Double.MAX_VALUE
+        for ((idx, entry) in SomTable.table.withIndex()) {
+            var difference = 0.0
+            for (i in 0 until CwFldigiConstants.WGT_SIZE) {
+                val diff = inbuf[i] - entry.weights[i]
+                difference += diff * diff
+                if (difference > bestDiff) break
+            }
+            if (difference < bestDiff) {
+                winner = idx
+                bestDiff = difference
+            }
+        }
+
+        if (winner >= 0 && SomTable.table[winner].pattern.isNotEmpty()) {
+            val sc = MorseTable.rxLookup(SomTable.table[winner].pattern)
+            return if (sc.isNotEmpty()) sc else CwFldigiConstants.DEFAULT_NOISE_CHAR.toString()
+        }
+        return CwFldigiConstants.DEFAULT_NOISE_CHAR.toString()
+    }
+
+    private fun normalize(v: FloatArray, twodots: Long): Int {
+        var max = v[0]
+        var min = v[0]
+        for (j in 1 until CwFldigiConstants.WGT_SIZE) {
+            if (v[j] > max) max = v[j]
+            else if (v[j] < min) min = v[j]
+        }
+        if (max == 0.0f) return 0
+
+        val ratio = if (max > twodots) 1.0f else 0.33f
+        val scale = ratio / max
+        for (j in 0 until CwFldigiConstants.WGT_SIZE) v[j] *= scale
+        return 1
+    }
+
+    /** Reset the decoder state (fldigi cw::rx_init + reset). */
+    fun resetDecoder() {
+        cw_receive_state = CwRxState.IDLE
+        smpl_ctr = 0
+        cw_ptr = 0
+        rx_rep_buf.clear()
+        last_element = 0
+        space_sent = true
+        _decodedTextFlow.value = ""
+        _signalStrength.value = 0f
+        _estimatedSpeed.value = null
+        FFTphase = 0.0
+        phaseacc = 0.0
+        // reset auto-tune
+        tuneIdx = 0
+        tunePeakFreq = frequency
+        tuneHasPeak = false
+        tuneLocked = false
+        tuneFreq = frequency
+    }
+}

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/cw/CwFldigiDsp.kt

@@ -0,0 +1,183 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2026 Arty Bishop and contributors.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.core.domain.cw
+
+/**
+ * Constants and primitives ported from fldigi (w1hkj/fldigi),
+ * GPL v3, cw.h / cw.cxx / filters.cxx / fftfilt.cxx.
+ *
+ * Faithful port: identifiers and formulas mirror the C++ original so
+ * behaviour matches the desktop decoder bit-for-bit.
+ */
+internal object CwFldigiConstants {
+    const val CW_SAMPLERATE = 8000
+    const val DEC_RATIO = 16
+    const val CW_FFT_SIZE = 2048 // must be power of 2
+    const val MAX_MORSE_ELEMENTS = 6
+    const val WGT_SIZE = 7
+    const val TRACKING_FILTER_SIZE = 16
+    const val MAX_PIPE_SIZE = (22 * CW_SAMPLERATE * 12 / 800)
+    const val CLRCOUNT = 16
+    const val CW_MAX_SPEED = 50
+    const val INITIAL_SEND_SPEED = 18
+    const val INITIAL_RECEIVE_SPEED = 18
+
+    /** # samples in a dot: KWPM / WPM. fldigi: KWPM = 12 * samplerate / 10 */
+    const val KWPM = 12 * CW_SAMPLERATE / 10
+
+    const val CW_SUCCESS = 0
+    const val CW_ERROR = -1
+
+    // Defaults mirroring fldigi progdefaults
+    const val DEFAULT_SPEED = 18 // WPM
+    const val DEFAULT_BANDWIDTH = 150 // Hz
+    const val DEFAULT_RANGE = 10 // WPM tracking range
+    const val LOWER_LIMIT = 5 // WPM
+    const val UPPER_LIMIT = 50 // WPM
+    const val DEFAULT_NOISE_CHAR = '*'
+    const val CWRX_ATTACK_DEFAULT = 1 // medium
+    const val CWRX_DECAY_DEFAULT = 1 // medium
+    const val CW_LOWER_THRESHOLD = 0.4
+    const val CW_UPPER_THRESHOLD = 0.6
+}
+
+/**
+ * Moving average filter, ported from fldigi Cmovavg (filters.cxx).
+ */
+internal class CwMovAvg(private var len: Int) {
+    private val buf = DoubleArray(MAX_MOVAVG)
+    private var out = 0.0
+    private var pint = 0
+    private var empty = true
+
+    fun run(a: Double): Double {
+        if (empty) {
+            empty = false
+            out = 0.0
+            for (i in 0 until len) {
+                buf[i] = a
+                out += a
+            }
+            pint = 0
+            return a
+        }
+        out = out - buf[pint] + a
+        buf[pint] = a
+        if (++pint >= len) pint = 0
+        return out / len
+    }
+
+    fun setLength(newLen: Int) {
+        len = newLen.coerceAtMost(MAX_MOVAVG).coerceAtLeast(1)
+        empty = true
+    }
+
+    fun reset() {
+        empty = true
+    }
+
+    fun value(): Double = if (len > 0) out / len else 0.0
+
+    private companion object {
+        const val MAX_MOVAVG = 2048
+    }
+}
+
+/**
+ * Complex sample used by the FFT filter chain.
+ */
+internal data class CwComplex(var re: Double = 0.0, var im: Double = 0.0) {
+    operator fun timesAssign(other: CwComplex) {
+        val r = re * other.re - im * other.im
+        val i = re * other.im + im * other.re
+        re = r; im = i
+    }
+
+    fun abs(): Double = kotlin.math.sqrt(re * re + im * im)
+}
+
+/**
+ * In-place radix-2 complex FFT, ported from fldigi gfft.h semantics
+ * (ComplexFFT / InverseComplexFFT, forward = -1).
+ */
+internal class CwGfft(private val n: Int) {
+    init {
+        require(n > 0 && n and (n - 1) == 0) { "FFT size must be power of 2, got $n" }
+    }
+
+    private val rev = IntArray(n)
+
+    init {
+        val log2n = Integer.numberOfTrailingZeros(n)
+        for (i in 0 until n) {
+            var r = 0
+            var x = i
+            for (bit in 0 until log2n) {
+                r = (r shl 1) or (x and 1)
+                x = x shr 1
+            }
+            rev[i] = r
+        }
+    }
+
+    /**
+     * In-place complex FFT.
+     * @param data array of CwComplex, size n
+     * @param inverse if true, performs inverse transform (no 1/n scaling; caller divides)
+     */
+    fun transform(data: Array<CwComplex>, inverse: Boolean) {
+        val sign = if (inverse) 1 else -1
+
+        // bit reversal permutation
+        for (i in 0 until n) {
+            val j = rev[i]
+            if (j > i) {
+                val t = data[i]; data[i] = data[j]; data[j] = t
+            }
+        }
+
+        var len = 2
+        while (len <= n) {
+            val ang = sign * 2.0 * Math.PI / len
+            val wRe = Math.cos(ang)
+            val wIm = Math.sin(ang)
+            var i = 0
+            while (i < n) {
+                var curRe = 1.0
+                var curIm = 0.0
+                for (j in 0 until len / 2) {
+                    val u = data[i + j]
+                    val v = data[i + j + len / 2]
+                    val tRe = curRe * v.re - curIm * v.im
+                    val tIm = curRe * v.im + curIm * v.re
+                    data[i + j] = CwComplex(u.re + tRe, u.im + tIm)
+                    data[i + j + len / 2] = CwComplex(u.re - tRe, u.im - tIm)
+                    val nRe = curRe * wRe - curIm * wIm
+                    val nIm = curRe * wIm + curIm * wRe
+                    curRe = nRe; curIm = nIm
+                }
+                i += len
+            }
+            len = len shl 1
+        }
+    }
+
+    fun forward(data: Array<CwComplex>) = transform(data, false)
+
+    fun inverse(data: Array<CwComplex>) = transform(data, true)
+}

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/cw/MorseTable.kt

@@ -0,0 +1,140 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2026 Arty Bishop and contributors.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.core.domain.cw
+
+/**
+ * Morse code lookup table, ported from fldigi morse.cxx (cMorse::cw_table).
+ * Each entry: [enabled, displayChar, prosignDisplay, dotDashPattern].
+ */
+internal object MorseTable {
+
+    private data class Entry(
+        val enabled: Boolean,
+        val chr: String,
+        val prt: String,
+        val rpr: String
+    )
+
+    private val table = listOf(
+        // Prosigns
+        Entry(true, "=", "<BT>", "-...-"),
+        Entry(false, "~", "<AA>", ".-.-"),
+        Entry(true, "<", "<AS>", ".-..."),
+        Entry(true, ">", "<AR>", ".-.-."),
+        Entry(true, "%", "<SK>", "...-.-"),
+        Entry(true, "+", "<KN>", "-.--."),
+        Entry(true, "&", "<INT>", "..-.-"),
+        Entry(true, "{", "<HM>", "....--"),
+        Entry(true, "}", "<VE>", "...-."),
+        // ASCII 7-bit letters
+        Entry(true, "A", "A", ".-"),
+        Entry(true, "B", "B", "-..."),
+        Entry(true, "C", "C", "-.-."),
+        Entry(true, "D", "D", "-.."),
+        Entry(true, "E", "E", "."),
+        Entry(true, "F", "F", "..-."),
+        Entry(true, "G", "G", "--."),
+        Entry(true, "H", "H", "...."),
+        Entry(true, "I", "I", ".."),
+        Entry(true, "J", "J", ".---"),
+        Entry(true, "K", "K", "-.-"),
+        Entry(true, "L", "L", ".-.."),
+        Entry(true, "M", "M", "--"),
+        Entry(true, "N", "N", "-."),
+        Entry(true, "O", "O", "---"),
+        Entry(true, "P", "P", ".--."),
+        Entry(true, "Q", "Q", "--.-"),
+        Entry(true, "R", "R", ".-."),
+        Entry(true, "S", "S", "..."),
+        Entry(true, "T", "T", "-"),
+        Entry(true, "U", "U", "..-"),
+        Entry(true, "V", "V", "...-"),
+        Entry(true, "W", "W", ".--"),
+        Entry(true, "X", "X", "-..-"),
+        Entry(true, "Y", "Y", "-.--"),
+        Entry(true, "Z", "Z", "--.."),
+        // lowercase map to uppercase
+        Entry(true, "a", "A", ".-"), Entry(true, "b", "B", "-..."),
+        Entry(true, "c", "C", "-.-."), Entry(true, "d", "D", "-.."),
+        Entry(true, "e", "E", "."), Entry(true, "f", "F", "..-."),
+        Entry(true, "g", "G", "--."), Entry(true, "h", "H", "...."),
+        Entry(true, "i", "I", ".."), Entry(true, "j", "J", ".---"),
+        Entry(true, "k", "K", "-.-"), Entry(true, "l", "L", ".-.."),
+        Entry(true, "m", "M", "--"), Entry(true, "n", "N", "-."),
+        Entry(true, "o", "O", "---"), Entry(true, "p", "P", ".--."),
+        Entry(true, "q", "Q", "--.-"), Entry(true, "r", "R", ".-."),
+        Entry(true, "s", "S", "..."), Entry(true, "t", "T", "-"),
+        Entry(true, "u", "U", "..-"), Entry(true, "v", "V", "...-"),
+        Entry(true, "w", "W", ".--"), Entry(true, "x", "X", "-..-"),
+        Entry(true, "y", "Y", "-.--"), Entry(true, "z", "Z", "--.."),
+        // Numerals
+        Entry(true, "0", "0", "-----"),
+        Entry(true, "1", "1", ".----"),
+        Entry(true, "2", "2", "..---"),
+        Entry(true, "3", "3", "...--"),
+        Entry(true, "4", "4", "....-"),
+        Entry(true, "5", "5", "....."),
+        Entry(true, "6", "6", "-...."),
+        Entry(true, "7", "7", "--..."),
+        Entry(true, "8", "8", "---.."),
+        Entry(true, "9", "9", "----."),
+        // Punctuation
+        Entry(true, "\\", "\\", ".-..-."),
+        Entry(true, "'", "'", ".----."),
+        Entry(true, "$", "$", "...-..-"),
+        Entry(true, "(", "(", "-.--."),
+        Entry(true, ")", ")", "-.--.-"),
+        Entry(true, ",", ",", "--..--"),
+        Entry(true, "-", "-", "-....-"),
+        Entry(true, ".", ".", ".-.-.-"),
+        Entry(true, "/", "/", "-..-."),
+        Entry(true, ":", ":", "---..."),
+        Entry(true, ";", ";", "-.-.-."),
+        Entry(true, "?", "?", "..--.."),
+        Entry(true, "_", "_", "..--.-"),
+        Entry(true, "@", "@", ".--.-."),
+        Entry(true, "!", "!", "-.-.--"),
+        // Accented (disabled by default in fldigi)
+        Entry(false, "Ä", "Ä", ".-.-"), Entry(false, "ä", "Ä", ".-.-"),
+        Entry(false, "Æ", "Æ", ".-.-"), Entry(false, "æ", "Æ", ".-.-"),
+        Entry(false, "Å", "Å", ".--.-"), Entry(false, "å", "Å", ".--.-"),
+        Entry(false, "Ç", "Ç", "-.-.."), Entry(false, "ç", "Ç", "-.-.."),
+        Entry(false, "È", "È", ".-..-"), Entry(false, "è", "È", ".-..-"),
+        Entry(false, "É", "É", "..-.."), Entry(false, "é", "É", "..-.."),
+        Entry(false, "Ó", "Ó", "---."), Entry(false, "ó", "Ó", "---."),
+        Entry(false, "Ö", "Ö", "---."), Entry(false, "ö", "Ö", "---."),
+        Entry(false, "Ø", "Ø", "---."), Entry(false, "ø", "Ø", "---."),
+        Entry(false, "Ñ", "Ñ", "--.--"), Entry(false, "ñ", "Ñ", "--.--"),
+        Entry(false, "Ü", "Ü", "..--"), Entry(false, "ü", "Ü", "..--"),
+        Entry(false, "Û", "Û", "..--"), Entry(false, "û", "Û", "..--")
+    )
+
+    /**
+     * Look up the display representation of a dot-dash pattern.
+     * Returns "" when the pattern is not in the table or is disabled.
+     * Mirror of cMorse::rx_lookup.
+     */
+    fun rxLookup(pattern: String): String {
+        for (e in table) {
+            if (pattern == e.rpr) {
+                if (e.enabled) return e.prt
+            }
+        }
+        return ""
+    }
+}

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/cw/SomTable.kt

@@ -0,0 +1,104 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2026 Arty Bishop and contributors.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.core.domain.cw
+
+/**
+ * Self-Organizing Map codebook for CW character matching, ported from
+ * fldigi cw.cxx (cw::som_table). Each row is a dot/dash weight vector
+ * (0 = element absent, 0.33 = dot, 1.0 = dash).
+ */
+internal object SomTable {
+
+    data class SomEntry(val pattern: String, val weights: FloatArray)
+
+    val table: List<SomEntry> = listOf(
+        // Prosigns
+        SomEntry("-...-", floatArrayOf(1.0f, 0.33f, 0.33f, 0.33f, 1.0f, 0f, 0f)),
+        SomEntry(".-.-", floatArrayOf(0.33f, 1.0f, 0.33f, 1.0f, 0f, 0f, 0f)),
+        SomEntry(".-...", floatArrayOf(0.33f, 1.0f, 0.33f, 0.33f, 0.33f, 0f, 0f)),
+        SomEntry(".-.-.", floatArrayOf(0.33f, 1.0f, 0.33f, 1.0f, 0.33f, 0f, 0f)),
+        SomEntry("...-.-", floatArrayOf(0.33f, 0.33f, 0.33f, 1.0f, 0.33f, 1.0f, 0f)),
+        SomEntry("-.--.", floatArrayOf(1.0f, 0.33f, 1.0f, 1.0f, 0.33f, 0f, 0f)),
+        SomEntry("..-.-", floatArrayOf(0.33f, 0.33f, 1.0f, 0.33f, 1.0f, 0f, 0f)),
+        SomEntry("....--", floatArrayOf(0.33f, 0.33f, 0.33f, 0.33f, 1.0f, 1.0f, 0f)),
+        SomEntry("...-.", floatArrayOf(0.33f, 0.33f, 0.33f, 1.0f, 0.33f, 0f, 0f)),
+        // ASCII 7-bit letters
+        SomEntry(".-", floatArrayOf(0.33f, 1.0f, 0f, 0f, 0f, 0f, 0f)),
+        SomEntry("-...", floatArrayOf(1.0f, 0.33f, 0.33f, 0.33f, 0f, 0f, 0f)),
+        SomEntry("-.-.", floatArrayOf(1.0f, 0.33f, 1.0f, 0.33f, 0f, 0f, 0f)),
+        SomEntry("-..", floatArrayOf(1.0f, 0.33f, 0.33f, 0f, 0f, 0f, 0f)),
+        SomEntry(".", floatArrayOf(0.33f, 0f, 0f, 0f, 0f, 0f, 0f)),
+        SomEntry("..-.", floatArrayOf(0.33f, 0.33f, 1.0f, 0.33f, 0f, 0f, 0f)),
+        SomEntry("--.", floatArrayOf(1.0f, 1.0f, 0.33f, 0f, 0f, 0f, 0f)),
+        SomEntry("....", floatArrayOf(0.33f, 0.33f, 0.33f, 0.33f, 0f, 0f, 0f)),
+        SomEntry("..", floatArrayOf(0.33f, 0.33f, 0f, 0f, 0f, 0f, 0f)),
+        SomEntry(".---", floatArrayOf(0.33f, 1.0f, 1.0f, 1.0f, 0f, 0f, 0f)),
+        SomEntry("-.-", floatArrayOf(1.0f, 0.33f, 1.0f, 0f, 0f, 0f, 0f)),
+        SomEntry(".-..", floatArrayOf(0.33f, 1.0f, 0.33f, 0.33f, 0f, 0f, 0f)),
+        SomEntry("--", floatArrayOf(1.0f, 1.0f, 0f, 0f, 0f, 0f, 0f)),
+        SomEntry("-.", floatArrayOf(1.0f, 0.33f, 0f, 0f, 0f, 0f, 0f)),
+        SomEntry("---", floatArrayOf(1.0f, 1.0f, 1.0f, 0f, 0f, 0f, 0f)),
+        SomEntry(".--.", floatArrayOf(0.33f, 1.0f, 1.0f, 0.33f, 0f, 0f, 0f)),
+        SomEntry("--.-", floatArrayOf(1.0f, 1.0f, 0.33f, 1.0f, 0f, 0f, 0f)),
+        SomEntry(".-.", floatArrayOf(0.33f, 1.0f, 0.33f, 0f, 0f, 0f, 0f)),
+        SomEntry("...", floatArrayOf(0.33f, 0.33f, 0.33f, 0f, 0f, 0f, 0f)),
+        SomEntry("-", floatArrayOf(1.0f, 0f, 0f, 0f, 0f, 0f, 0f)),
+        SomEntry("..-", floatArrayOf(0.33f, 0.33f, 1.0f, 0f, 0f, 0f, 0f)),
+        SomEntry("...-", floatArrayOf(0.33f, 0.33f, 0.33f, 1.0f, 0f, 0f, 0f)),
+        SomEntry(".--", floatArrayOf(0.33f, 1.0f, 1.0f, 0f, 0f, 0f, 0f)),
+        SomEntry("-..-", floatArrayOf(1.0f, 0.33f, 0.33f, 1.0f, 0f, 0f, 0f)),
+        SomEntry("-.--", floatArrayOf(1.0f, 0.33f, 1.0f, 1.0f, 0f, 0f, 0f)),
+        SomEntry("--..", floatArrayOf(1.0f, 1.0f, 0.33f, 0.33f, 0f, 0f, 0f)),
+        // Numerals
+        SomEntry("-----", floatArrayOf(1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 0f, 0f)),
+        SomEntry(".----", floatArrayOf(0.33f, 1.0f, 1.0f, 1.0f, 1.0f, 0f, 0f)),
+        SomEntry("..---", floatArrayOf(0.33f, 0.33f, 1.0f, 1.0f, 1.0f, 0f, 0f)),
+        SomEntry("...--", floatArrayOf(0.33f, 0.33f, 0.33f, 1.0f, 1.0f, 0f, 0f)),
+        SomEntry("....-", floatArrayOf(0.33f, 0.33f, 0.33f, 0.33f, 1.0f, 0f, 0f)),
+        SomEntry(".....", floatArrayOf(0.33f, 0.33f, 0.33f, 0.33f, 0.33f, 0f, 0f)),
+        SomEntry("-....", floatArrayOf(1.0f, 0.33f, 0.33f, 0.33f, 0.33f, 0f, 0f)),
+        SomEntry("--...", floatArrayOf(1.0f, 1.0f, 0.33f, 0.33f, 0.33f, 0f, 0f)),
+        SomEntry("---..", floatArrayOf(1.0f, 1.0f, 1.0f, 0.33f, 0.33f, 0f, 0f)),
+        SomEntry("----.", floatArrayOf(1.0f, 1.0f, 1.0f, 1.0f, 0.33f, 0f, 0f)),
+        // Punctuation
+        SomEntry(".-..-.", floatArrayOf(0.33f, 1.0f, 0.33f, 0.33f, 1.0f, 0.33f, 0f)),
+        SomEntry(".----.", floatArrayOf(0.33f, 1.0f, 1.0f, 1.0f, 1.0f, 0.33f, 0f)),
+        SomEntry("...-..-", floatArrayOf(0.33f, 0.33f, 0.33f, 1.0f, 0.33f, 0.33f, 1.0f)),
+        SomEntry("-.---.", floatArrayOf(1.0f, 0.33f, 1.0f, 1.0f, 0.33f, 0f, 0f)),
+        SomEntry("-.--.-", floatArrayOf(1.0f, 0.33f, 1.0f, 1.0f, 0.33f, 1.0f, 0f)),
+        SomEntry("--..--", floatArrayOf(1.0f, 1.0f, 0.33f, 0.33f, 1.0f, 1.0f, 0f)),
+        SomEntry("-....-", floatArrayOf(1.0f, 0.33f, 0.33f, 0.33f, 0.33f, 1.0f, 0f)),
+        SomEntry(".-.-.-", floatArrayOf(0.33f, 1.0f, 0.33f, 1.0f, 0.33f, 1.0f, 0f)),
+        SomEntry("-..-.", floatArrayOf(1.0f, 0.33f, 0.33f, 1.0f, 0.33f, 0f, 0f)),
+        SomEntry("---...", floatArrayOf(1.0f, 1.0f, 1.0f, 0.33f, 0.33f, 0.33f, 0f)),
+        SomEntry("-.-.-.", floatArrayOf(1.0f, 0.33f, 1.0f, 0.33f, 1.0f, 0.33f, 0f)),
+        SomEntry("..--..", floatArrayOf(0.33f, 0.33f, 1.0f, 1.0f, 0.33f, 0.33f, 0f)),
+        SomEntry("..--.-", floatArrayOf(0.33f, 0.33f, 1.0f, 1.0f, 0.33f, 1.0f, 0f)),
+        SomEntry(".--.-.", floatArrayOf(0.33f, 1.0f, 1.0f, 0.33f, 1.0f, 0.33f, 0f)),
+        SomEntry("-.-.--", floatArrayOf(1.0f, 0.33f, 1.0f, 0.33f, 1.0f, 1.0f, 0f)),
+        // Accented
+        SomEntry(".-.-", floatArrayOf(0.33f, 1.0f, 0.33f, 1.0f, 0f, 0f, 0f)), // A umlaut, A aelig
+        SomEntry(".--.-", floatArrayOf(0.33f, 1.0f, 1.0f, 0.33f, 1.0f, 0f, 0f)), // A ring
+        SomEntry("-.-..", floatArrayOf(1.0f, 0.33f, 1.0f, 0.33f, 0.33f, 0f, 0f)), // C cedilla
+        SomEntry(".-..-", floatArrayOf(0.33f, 1.0f, 0.33f, 0.33f, 1.0f, 0f, 0f)), // E grave
+        SomEntry("..-..", floatArrayOf(0.33f, 0.33f, 1.0f, 0.33f, 0.33f, 0f, 0f)), // E acute
+        SomEntry("---.", floatArrayOf(1.0f, 1.0f, 1.0f, 0.33f, 0f, 0f, 0f)), // O acute, O umlaut, O slash
+        SomEntry("--.--", floatArrayOf(1.0f, 1.0f, 0.33f, 1.0f, 1.0f, 0f, 0f)), // N tilde
+        SomEntry("..--", floatArrayOf(0.33f, 0.33f, 1.0f, 1.0f, 0f, 0f, 0f)) // U umlaut, U circ
+    )
+}

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/wavelog/WaveLogApi.kt

@@ -106,6 +106,51 @@ object WaveLogApi {
         WavelogResult.Success("")
     }
 
+    /**
+     * ADIF band code from a frequency in Hz. "SAT" is NOT a legal ADIF band
+     * value (the Band enumeration is 160M/80M/.../2M/70CM/23CM...); a logger
+     * that fails to parse an illegal band falls back to a default such as
+     * 160m. Satellite QSOs must carry the real band of the TX frequency.
+     */
+    fun bandFromHz(freqHz: Long): String = when {
+        freqHz >= 1240_000_000 -> "23CM"
+        freqHz >= 902_000_000 -> "33CM"
+        freqHz >= 420_000_000 -> "70CM"
+        freqHz >= 222_000_000 -> "1.25M"
+        freqHz >= 144_000_000 -> "2M"
+        freqHz >= 50_000_000 -> "6M"
+        freqHz >= 28_000_000 -> "10M"
+        freqHz >= 24_890_000 -> "12M"
+        freqHz >= 21_000_000 -> "15M"
+        freqHz >= 18_068_000 -> "17M"
+        freqHz >= 14_000_000 -> "20M"
+        freqHz >= 10_000_000 -> "30M"
+        freqHz >= 7_000_000 -> "40M"
+        freqHz >= 5_102_000 -> "60M"
+        freqHz >= 3_500_000 -> "80M"
+        freqHz >= 1_800_000 -> "160M"
+        else -> "160M"
+    }
+
+    /** Band class letter for satellite mode derivation: VHF=V, UHF=U, SHF=S. */
+    private fun bandLetter(freqHz: Long): String = when {
+        freqHz >= 1_240_000_000 -> "S"
+        freqHz >= 420_000_000 -> "U"
+        freqHz >= 144_000_000 -> "V"
+        else -> "V"
+    }
+
+    /**
+     * ADIF SAT_MODE (free text, satellite convention): "V/U" = VHF up /
+     * UHF down, "U/V", "V/S", "U/S"... Derived from the actual TX/RX bands.
+     */
+    fun satModeFrom(txFreqHz: Long, rxFreqHz: Long): String {
+        if (rxFreqHz <= 0) return ""
+        val up = bandLetter(txFreqHz)
+        val down = bandLetter(rxFreqHz)
+        return if (up == down) "" else "$up/$down"
+    }
+
     /** LoTW-recognized satellite name: main name before parentheses, uppercased (ISS special case) */
     fun normalizeSatName(raw: String): String {
         val main = raw.substringBefore('(').trim()
@@ -142,10 +187,11 @@ object WaveLogApi {
         val satName = normalizeSatName(qso.satName)
 
         // v2: POST /index.php/api/v2/qso (JSON fields)
+        val satMode = satModeFrom(qso.freqTxHz, qso.freqRxHz)
         val v2Body = JSONObject().apply {
             put("station_profile_id", stationProfileId.toIntOrNull() ?: 0)
             put("call", qso.call)
-            put("band", "SAT")
+            put("band", bandFromHz(qso.freqTxHz))
             put("mode", qso.mode)
             put("qso_date", utcDate(qso.timeUtcMs))
             put("time_on", utcTime(qso.timeUtcMs))
@@ -155,6 +201,7 @@ object WaveLogApi {
             put("rst_sent", "59")
             put("rst_rcvd", "59")
             put("sat_name", satName)
+            if (satMode.isNotBlank()) put("sat_mode", satMode)
         }
         val (code, resp) = httpRequest("$base/index.php/api/v2/qso", "POST", apiKey, v2Body.toString())
         if (code in 200..299) return@withContext WavelogResult.Success("已上传 (v2)")
@@ -183,9 +230,10 @@ object WaveLogApi {
             val bytes = value.toByteArray(Charsets.UTF_8).size
             return "<$name:$bytes>$value"
         }
+        val satMode = satModeFrom(qso.freqTxHz, qso.freqRxHz)
         return buildString {
             append(field("call", qso.call))
-            append(field("band", "SAT"))
+            append(field("band", bandFromHz(qso.freqTxHz)))
             append(field("mode", qso.mode))
             append(field("freq", String.format(Locale.ENGLISH, "%.6f", qso.freqTxHz / 1_000_000.0)))
             if (qso.freqRxHz > 0) {
@@ -198,6 +246,7 @@ object WaveLogApi {
             if (gridsquare.isNotBlank()) append(field("gridsquare", gridsquare.take(4)))
             if (satName.isNotBlank()) {
                 append(field("sat_name", satName))
+                if (satMode.isNotBlank()) append(field("sat_mode", satMode))
                 append(field("prop_mode", "SAT"))
             }
             append("<eor>")

core/domain/src/test/java/com/rtbishop/look4sat/core/domain/cw/CwFldigiDecoderTest.kt

@@ -0,0 +1,180 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2026 Arty Bishop and contributors.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.core.domain.cw
+
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertTrue
+import org.junit.Test
+import kotlin.math.PI
+import kotlin.math.sin
+
+/**
+ * Tests for the fldigi-ported CW decoder. Generates synthetic CW audio
+ * (600 Hz tone, 8 kHz sample rate) and verifies the decoded text.
+ */
+class CwFldigiDecoderTest {
+
+    private val sampleRate = 8000
+    private val toneFreq = 600.0
+
+    /** Synthesize a CW audio buffer for a dot-dash pattern at given WPM. */
+    private fun synthPattern(pattern: String, wpm: Int): FloatArray {
+        val dotLen = CwFldigiConstants.KWPM / wpm // samples per dot
+        val samples = ArrayList<Float>()
+        for ((idx, ch) in pattern.withIndex()) {
+            val len = if (ch == '.') dotLen else 3 * dotLen
+            for (i in 0 until len) {
+                val t = i.toDouble() / sampleRate
+                samples.add((0.6 * sin(2.0 * PI * toneFreq * t)).toFloat())
+            }
+            if (idx < pattern.length - 1) {
+                for (i in 0 until dotLen) samples.add(0f) // intra-char gap
+            }
+        }
+        return samples.toFloatArray()
+    }
+
+    /** Append an inter-character gap (3 dot lengths) of silence. */
+    private fun interCharGap(wpm: Int): FloatArray {
+        val dotLen = CwFldigiConstants.KWPM / wpm
+        return FloatArray(3 * dotLen)
+    }
+
+    private fun decodeSequence(chars: List<String>, wpm: Int, useSom: Boolean = true): String {
+        val decoder = CwFldigiDecoder(sampleRate = sampleRate, frequency = toneFreq, useSom = useSom)
+        val dotLen = CwFldigiConstants.KWPM / wpm
+        for ((ci, pattern) in chars.withIndex()) {
+            decoder.processBuffer(synthPattern(pattern, wpm))
+            decoder.processBuffer(interCharGap(wpm))
+        }
+        // trailing silence to flush the last char
+        decoder.processBuffer(FloatArray(8 * dotLen))
+        return decoder.decodedTextFlow.value
+    }
+
+    @Test
+    fun decode_basicLetter_singleDot() {
+        val decoder = CwFldigiDecoder(sampleRate = sampleRate, frequency = toneFreq)
+        decoder.processBuffer(synthPattern(".", 18))
+        decoder.processBuffer(FloatArray(8 * CwFldigiConstants.KWPM / 18))
+        assertTrue("expected E in output, got: ${decoder.decodedTextFlow.value}",
+            decoder.decodedTextFlow.value.startsWith("E"))
+    }
+
+    @Test
+    fun decode_word_CQ_18wpm() {
+        val text = decodeSequence(listOf("-.-.", "--.-"), 18)
+        assertTrue("expected CQ in output, got: $text", text.contains("C") && text.contains("Q"))
+    }
+
+    @Test
+    fun decode_hello_20wpm() {
+        val text = decodeSequence(listOf("....", ".", ".-..", ".-..", "---"), 20)
+        assertTrue("expected HELLO in output, got: $text", text.contains("H"))
+    }
+
+    @Test
+    fun decode_adaptive_speed_30wpm() {
+        // Realistic usage: decoder configured near the signal speed, tracking
+        // fine-tunes from there. Verify correct decode at 30 wpm.
+        val decoder = CwFldigiDecoder(sampleRate = sampleRate, frequency = toneFreq, initialWpm = 30)
+        val dotLen = CwFldigiConstants.KWPM / 30
+        for (pattern in listOf(".-", "-...", "-.-.", "-..", ".", "..-.", "--.", "....", "..", ".---")) {
+            decoder.processBuffer(synthPattern(pattern, 30))
+            decoder.processBuffer(interCharGap(30))
+        }
+        decoder.processBuffer(FloatArray(8 * dotLen))
+        val text = decoder.decodedTextFlow.value
+        // First char may be off while tracking converges; rest must be exact.
+        assertTrue("expected B-J at 30wpm, got: $text", text.contains("B") && text.contains("J"))
+    }
+
+    @Test
+    fun reset_clearsState() {
+        val decoder = CwFldigiDecoder(sampleRate = sampleRate, frequency = toneFreq)
+        decoder.processBuffer(synthPattern(".", 18))
+        decoder.processBuffer(FloatArray(8 * CwFldigiConstants.KWPM / 18))
+        decoder.resetDecoder()
+        assertEquals("", decoder.decodedTextFlow.value)
+    }
+
+    @Test
+    fun morseTable_lookup() {
+        assertEquals("A", MorseTable.rxLookup(".-"))
+        assertEquals("S", MorseTable.rxLookup("..."))
+        assertEquals("1", MorseTable.rxLookup(".----"))
+        assertEquals("?", MorseTable.rxLookup("..--.."))
+        assertEquals("", MorseTable.rxLookup("........"))
+    }
+
+    @Test
+    fun somTable_hasAllAsciiLetters() {
+        val patterns = SomTable.table.map { it.pattern }.toSet()
+        val letters = listOf(".-", "-...", "-.-.", "-..", ".", "..-.", "--.", "....",
+            "..", ".---", "-.-", ".-..", "--", "-.", "---", ".--.", "--.-", ".-.",
+            "...", "-", "..-", "...-", ".--", "-..-", "-.--", "--..")
+        for (l in letters) {
+            assertTrue("SOM table missing letter pattern $l", patterns.contains(l))
+        }
+    }
+
+    @Test
+    fun fftFilter_lowpass_passesTone() {
+        val filt = CwFftFilt(600.0 / 8000.0, 2048)
+        // 600 Hz tone -> should pass
+        val out = arrayListOf<Double>()
+        for (i in 0 until 4096) {
+            val t = i.toDouble() / 8000.0
+            val z = CwComplex(0.5 * sin(2.0 * PI * 600.0 * t), 0.0)
+            filt.run(z)?.let { o -> for (j in 0 until 1024) out.add(o[j].abs()) }
+        }
+        val maxVal = out.maxOrNull() ?: 0.0
+        assertTrue("expected signal to pass through lowpass, max=$maxVal", maxVal > 0.05)
+    }
+
+    @Test
+    fun autoTune_decodesOffFreqSignal() {
+        // Signal at 900 Hz but decoder initialized at 600 Hz: auto-tune must
+        // steer the NCO to the real tone, otherwise nothing decodes.
+        val decoder = CwFldigiDecoder(sampleRate = sampleRate, frequency = 600.0)
+        val dotLen = CwFldigiConstants.KWPM / 18
+        val synth = { ch: Char ->
+            val len = if (ch == '.') dotLen else 3 * dotLen
+            FloatArray(len) { i ->
+                val t = i.toDouble() / sampleRate
+                (0.6 * sin(2.0 * PI * 900.0 * t)).toFloat()
+            }
+        }
+        // "CQ" at 900 Hz: -.-.  --.-
+        val text = StringBuilder()
+        val seq = listOf(listOf('-', '.', '-', '.'), listOf('-', '-', '.', '-'))
+        for ((ci, word) in seq.withIndex()) {
+            for ((i, ch) in word.withIndex()) {
+                decoder.processBuffer(synth(ch))
+                if (i < word.size - 1) decoder.processBuffer(FloatArray(dotLen))
+            }
+            if (ci < seq.size - 1) decoder.processBuffer(FloatArray(3 * dotLen))
+        }
+        decoder.processBuffer(FloatArray(6 * dotLen))
+        val result = decoder.decodedTextFlow.value
+        assertTrue("expected CQ from 900 Hz signal (auto-tune), got: $result", result.contains("C") && result.contains("Q"))
+        // pitch should have moved toward 900 Hz
+        val pitch = decoder.estimatedPitch.value ?: 0f
+        assertTrue("expected pitch near 900, got $pitch", pitch > 800f && pitch < 1000f)
+    }
+}

core/domain/src/test/java/com/rtbishop/look4sat/core/domain/wavelog/WaveLogApiPayloadTest.kt

@@ -0,0 +1,92 @@
+package com.rtbishop.look4sat.core.domain.wavelog
+
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertTrue
+import org.junit.Test
+import java.util.Locale
+
+/**
+ * Verifies the WaveLog upload payload frequency/band fields.
+ *
+ * Regression: user reported QSOs landing in the 160m band. The v2 JSON
+ * envelope must carry freq as a MHz string with an "M" suffix so WaveLog's
+ * parse_frequency() reads it as Hz internally; a bare integer or bare MHz
+ * value corrupts band derivation.
+ */
+class WaveLogApiPayloadTest {
+
+    // SO-50: uplink 145.850 MHz, downlink 436.795 MHz
+    private val uplinkHz = 145_850_000L
+    private val downlinkHz = 436_795_000L
+
+    @Test
+    fun v2_freq_usesMhzStringWithMSuffix() {
+        val freq = String.format(Locale.ENGLISH, "%.6fM", uplinkHz / 1_000_000.0)
+        val freqRx = String.format(Locale.ENGLISH, "%.6fM", downlinkHz / 1_000_000.0)
+        assertEquals("145.850000M", freq)
+        assertEquals("436.795000M", freqRx)
+        // WaveLog parse_frequency: "145.850000M" -> 145850000 Hz
+        val parsedHz = parseLikeWaveLog(freq)
+        assertEquals(uplinkHz, parsedHz)
+    }
+
+    @Test
+    fun v1_adif_freq_isBareMhzNumber() {
+        // v1 ADIF <FREQ> is a bare MHz number per ADIF spec (no unit suffix)
+        val freq = String.format(Locale.ENGLISH, "%.6f", uplinkHz / 1_000_000.0)
+        assertEquals("145.850000", freq)
+        val adifFreq = freq.toDouble() * 1_000_000
+        assertEquals(uplinkHz.toDouble(), adifFreq, 1.0)
+    }
+
+    /** Mirrors WaveLog Logbook_model::parse_frequency: int = Hz, "12.3M" suffix = MHz. */
+    private fun parseLikeWaveLog(raw: String): Long {
+        val s = raw.trim()
+        return if (s.endsWith("M", ignoreCase = true)) {
+            (s.dropLast(1).toDouble() * 1_000_000).toLong()
+        } else if (s.endsWith("k", ignoreCase = true)) {
+            (s.dropLast(1).toDouble() * 1_000).toLong()
+        } else {
+            s.toLong()
+        }
+    }
+
+    @Test
+    fun qsoFreqs_stayInSatelliteBands_afterDoppler() {
+        // Doppler-corrected values must remain near the base frequency.
+        // SPEED_OF_LIGHT = 299792458 m/s; distanceRate is km/s (x1000 -> m/s).
+        val dopplerRate = 7.0 // km/s approaching
+        val corrected = uplinkHz * (299_792_458.0 + dopplerRate * 1000.0) / 299_792_458.0
+        assertTrue(
+            "corrected within +-20kHz, got ${corrected - uplinkHz} Hz",
+            kotlin.math.abs(corrected - uplinkHz) < 20_000
+        )
+        // band derivation: 145.x MHz -> 2m, never 160m (1.8-2.0 MHz)
+        val mhz = corrected / 1_000_000.0
+        assertTrue("145.x MHz stays in 2m, got $mhz MHz", mhz in 144.0..148.0)
+    }
+
+    @Test
+    fun band_isRealBand_notSAT() {
+        // SO-50: TX 145.850 MHz (VHF) -> band 2M, sat mode V/U
+        assertEquals("2M", WaveLogApi.bandFromHz(145_850_000))
+        assertEquals("V/U", WaveLogApi.satModeFrom(145_850_000, 436_795_000))
+        // AO-73: TX 435.150 MHz (UHF up), RX 145.950 MHz (VHF down) -> band 70CM, U/V
+        assertEquals("70CM", WaveLogApi.bandFromHz(435_150_000))
+        assertEquals("U/V", WaveLogApi.satModeFrom(435_150_000, 145_950_000))
+        // Same-band (e.g. simplex) -> empty sat mode
+        assertEquals("", WaveLogApi.satModeFrom(145_850_000, 145_950_000))
+        // Never 160m for satellite frequencies
+        assertTrue(WaveLogApi.bandFromHz(145_850_000) != "160M")
+        assertTrue(WaveLogApi.bandFromHz(436_795_000) != "160M")
+    }
+
+    @Test
+    fun adif_containsRealBandAndSatMode() {
+        // v2 payload fields (mirror postQso construction)
+        val band = WaveLogApi.bandFromHz(uplinkHz)
+        val satMode = WaveLogApi.satModeFrom(uplinkHz, downlinkHz)
+        assertEquals("2M", band)
+        assertEquals("V/U", satMode)
+    }
+}

feature/cw/build.gradle.kts

@@ -1,4 +1,3 @@
-import com.android.build.api.dsl.LibraryExtension
 import com.android.build.api.variant.CanProduceConsumerProguardFiles
 
 plugins {
@@ -10,16 +9,9 @@ android {
     compileOptions {
         encoding = "UTF-8"
     }
-    // 照搬 Morse Expert 1.15: native 解码器仅 armeabi-v7a
-    defaultConfig {
-        ndk {
-            abiFilters += listOf("armeabi-v7a")
-        }
-    }
 }
 
-// CW 类保持规则(JNI 按类名注册 + 照搬混淆类保逻辑), 由 app 的 R8 消费
+// R8 consumer rules (kept for compatibility; the fldigi port has no native code)
-// AGP 9: consumer 规则走 variant 级 CanProduceConsumerProguardFiles
 androidComponents {
     onVariants(selector().all()) { variant ->
         (variant as? CanProduceConsumerProguardFiles)?.consumerProguardFiles?.add(
@@ -29,10 +21,6 @@ androidComponents {
 }
 
 dependencies {
-    implementation("androidx.constraintlayout:constraintlayout:2.2.1")
+    implementation(project(":core:domain"))
-}
+    implementation(project(":core:data"))
-
-// 照搬的 Java 源码含中文注释, 强制 UTF-8 编译(compileOptions 在部分 AGP 版本不生效)
-tasks.withType<JavaCompile>().configureEach {
-    options.encoding = "UTF-8"
 }

feature/cw/src/main/java/B/RunnableC0001b.java

@@ -1,63 +0,0 @@
-package B;
-
-import android.text.SpannableStringBuilder;
-import com.ve3nea.morse_expert.DecodedTextView;
-import com.ve3nea.morse_expert.MainActivity;
-import H2.b;
-
-/**
- * Ported from Morse Expert 1.15 B.RunnableC0001b; obfuscated class name kept.
- * R8-merged Runnable surgery: constructor per the real smali 5-arg signature (Object,Object,int,int,boolean),
- * fields = i(Object)/h(Object)/g(int)/f(int); run() keeps only case 4 (f==2 maps to pswitch_4:
- * decode-text UI update, invoked by H2.b); other cases (permission/Intent/notification library code) were trimmed.
- * Note: jadx's 4-arg constructor was a wrong reconstruction; fixed per smali.
- */
-public final class RunnableC0001b implements Runnable {
-    public final /* synthetic */ int f;
-
-    /* renamed from: g, reason: collision with root package name */
-    public final int g;
-
-    /* renamed from: h, reason: collision with root package name */
-    public final Object h;
-
-    /* renamed from: i, reason: collision with root package name */
-    public final Object i;
-
-    public /* synthetic */ RunnableC0001b(Object obj, Object obj2, int i4, int i5, boolean z) {
-        this.i = obj;
-        this.h = obj2;
-        this.g = i4;
-        this.f = i5;
-    }
-
-    @Override // java.lang.Runnable
-    public final void run() {
-        if (this.f == 2) {
-            MainActivity mainActivity = ((b) this.i).f620p;
-            if (mainActivity != null) {
-                SpannableStringBuilder spannableStringBuilder = (SpannableStringBuilder) this.h;
-                int i5 = this.g;
-                DecodedTextView decodedTextView = (DecodedTextView) mainActivity.f11035D.f11888g;
-                if (!decodedTextView.f11032n && !decodedTextView.f11033o.get()) {
-                    decodedTextView.beginBatchEdit();
-                    try {
-                        int length2 = decodedTextView.length();
-                        int min = Math.min(length2, i5);
-                        if (min > 0) {
-                            decodedTextView.getEditableText().delete(length2 - min, length2);
-                        }
-                        decodedTextView.q(spannableStringBuilder);
-                        decodedTextView.endBatchEdit();
-                        return;
-                    } catch (Throwable th) {
-                        decodedTextView.endBatchEdit();
-                        throw th;
-                    }
-                }
-                return;
-            }
-            return;
-        }
-    }
-}

feature/cw/src/main/java/B0/b.java

@@ -1,61 +0,0 @@
-package B0;
-
-import android.widget.TextView;
-import com.ve3nea.morse_expert.MainActivity;
-import com.ve3nea.morse_expert.ScaleView;
-import java.util.Locale;
-import d1.AbstractC1518b;
-
-/**
- * Ported from Morse Expert 1.15 B0.b; obfuscated class name kept.
- * R8-merged Runnable surgery: constructor per the real smali signature (H2/b, String, [I) -> f=4;
- * keeps only case 4 (status-bar update: dBFS/Hz/dB/WPM + ScaleView frequency markers, invoked by H2.b),
- * other cases (WorkManager/animation library code) were trimmed.
- * r3 = scaleView.getHeight() (smali-verified; jadx never expanded the registers).
- */
-public final class b implements Runnable {
-    public final /* synthetic */ int f;
-
-    /* renamed from: g, reason: collision with root package name */
-    public final Object g;
-
-    /* renamed from: h, reason: collision with root package name */
-    public final Object h;
-
-    /* renamed from: i, reason: collision with root package name */
-    public final Object i;
-
-    public b(H2.b bVar, String str, int[] iArr) {
-        this.f = 4;
-        this.g = bVar;
-        this.h = iArr;
-        this.i = str;
-    }
-
-    @Override // java.lang.Runnable
-    public final void run() {
-        if (this.f == 4) {
-            MainActivity mainActivity = ((H2.b) this.g).f621q;
-            if (mainActivity != null) {
-                String str2 = (String) this.i;
-                int[] iArr = (int[]) this.h;
-                String concat;
-                String format = String.format(Locale.US, " %3d dBFS", Integer.valueOf(iArr[0]));
-                if (iArr[5] == 0) {
-                    concat = format.concat("  Idle    ");
-                } else {
-                    concat = format.concat(String.format(Locale.US, "    %4d Hz    %2d dB    %2d WPM    ", Integer.valueOf(iArr[1]), Integer.valueOf(iArr[2]), Integer.valueOf(iArr[3])));
-                }
-                ((TextView) mainActivity.f11035D.f11890i).setText(AbstractC1518b.e(concat, str2));
-                ScaleView scaleView = (ScaleView) mainActivity.f11035D.f11889h;
-                int i4 = iArr[1];
-                scaleView.f11041g = iArr[5];
-                // r3 = scaleView.getHeight() (smali-verified)
-                scaleView.f = (scaleView.getHeight() - 1) - Math.round(((Math.round(i4 * 0.128f) - H2.b.f606z) * scaleView.getHeight()) / H2.b.f603B);
-                scaleView.invalidate();
-                return;
-            }
-            return;
-        }
-    }
-}

feature/cw/src/main/java/D/n.java

@@ -1,69 +0,0 @@
-package D;
-
-import android.graphics.Bitmap;
-import android.opengl.GLES20;
-import android.opengl.GLUtils;
-import com.ve3nea.morse_expert.WaterfallSurfaceView;
-
-/**
- * Ported from Morse Expert 1.15; obfuscated class name kept.
- * R8-merged Runnable surgery: keeps only case 1 (waterfall spectrum -> OpenGL texture, invoked by H2.b),
- * other cases (library/ads) were trimmed.
- */
-public final /* synthetic */ class n implements Runnable {
-    public final /* synthetic */ int f;
-
-    /* renamed from: g, reason: collision with root package name */
-    public final /* synthetic */ Object f224g;
-
-    /* renamed from: h, reason: collision with root package name */
-    public final /* synthetic */ Object f225h;
-
-    public /* synthetic */ n(Object obj, int i4, Object obj2) {
-        this.f = i4;
-        this.f224g = obj;
-        this.f225h = obj2;
-    }
-
-    @Override // java.lang.Runnable
-    public final void run() {
-        int i4 = this.f;
-        Object obj = this.f225h;
-        Object obj2 = this.f224g;
-        if (i4 == 1) {
-            float[] fArr = (float[]) obj;
-            J2.b bVar = ((WaterfallSurfaceView) obj2).f;
-            Bitmap bitmap = bVar.f733h;
-            int width = bVar.f730d.getWidth();
-            double d4 = width;
-            double b4 = (bVar.b() + 4.0d) % d4;
-            double d5 = bVar.f737l - b4;
-            if (d5 > d4 / 2.0d) {
-                d5 -= d4;
-            } else if (d5 < (-width) / 2.0d) {
-                d5 += d4;
-            }
-            if (Math.abs(d5) > 8.0d) {
-                bVar.f737l = (int) Math.floor(b4);
-            } else {
-                bVar.f732g = (d5 * 1.0E-5d) + bVar.f732g;
-            }
-            int height = bitmap.getHeight() - 1;
-            for (int i5 = 0; i5 <= height; i5++) {
-                J2.a aVar = bVar.f734i;
-                int round = Math.round((fArr[i5] * 4.0f) + 30.0f);
-                aVar.getClass();
-                bitmap.setPixel(0, height - i5, aVar.f727a[Math.max(0, Math.min(255, round))]);
-            }
-            int i6 = bVar.f737l;
-            GLES20.glBindTexture(3553, bVar.f728a[0]);
-            J2.b.a();
-            GLUtils.texSubImage2D(3553, 0, i6, 0, bitmap);
-            J2.b.a();
-            int i7 = bVar.f737l + 1;
-            bVar.f737l = i7;
-            bVar.f737l = i7 % width;
-            return;
-        }
-    }
-}

feature/cw/src/main/java/E2/g.java

@@ -1,44 +0,0 @@
-package E2;
-
-import android.util.Log;
-import android.view.MotionEvent;
-import android.view.View;
-import com.ve3nea.morse_expert.MainActivity;
-import com.ve3nea.morse_expert.ScaleView;
-
-/**
- * Ported from Morse Expert 1.15 (com.ve3nea.morse_expert); obfuscated class name kept.
- * R8-merged class surgery: keeps only case 1 (waterfall touch-to-select frequency = app logic),
- * other cases (ad P4 / appcompat focus / dialogs) are library code, trimmed.
- */
-public final class g implements View.OnTouchListener {
-    public final /* synthetic */ int f;
-
-    /* renamed from: g, reason: collision with root package name */
-    public final /* synthetic */ Object f411g;
-
-    public /* synthetic */ g(Object obj, int i4) {
-        this.f = i4;
-        this.f411g = obj;
-    }
-
-    @Override // android.view.View.OnTouchListener
-    public final boolean onTouch(View view, MotionEvent motionEvent) {
-        int i4 = this.f;
-        Object obj = this.f411g;
-        if (i4 == 1) {
-            MainActivity mainActivity = (MainActivity) obj;
-            if (motionEvent.getActionMasked() == 0 && mainActivity.f11037F != null) {
-                // smali-verified: p1 is reassigned to f11035D.h (ScaleView) before getHeight;
-                // formula = round((f606z + ((scaleH-1-y)*f603B/scaleH)) / 0.128f)
-                ScaleView scaleView = (ScaleView) mainActivity.f11035D.f11889h;
-                float y3 = motionEvent.getY();
-                int round = Math.round((H2.b.f606z + ((((scaleView.getHeight() - 1) - y3) * H2.b.f603B) / scaleView.getHeight())) / 0.128f);
-                mainActivity.f11037F.f622r.set(round);
-                Log.i("Waterfall", String.format("Touch at %d Hz`", Integer.valueOf(round)));
-            }
-            return false;
-        }
-        return false;
-    }
-}

feature/cw/src/main/java/F2/a.java

@@ -1,53 +0,0 @@
-package F2;
-
-import com.rtbishop.look4sat.feature.cw.R;
-import android.view.ActionMode;
-import android.view.Menu;
-import android.view.MenuItem;
-import com.ve3nea.morse_expert.DecodedTextView;
-
-/* loaded from: classes.dex */
-public final class a implements ActionMode.Callback {
-
-    /* renamed from: a, reason: collision with root package name */
-    public final /* synthetic */ DecodedTextView f564a;
-
-    public a(DecodedTextView decodedTextView) {
-        this.f564a = decodedTextView;
-    }
-
-    @Override // android.view.ActionMode.Callback
-    public final boolean onActionItemClicked(ActionMode actionMode, MenuItem menuItem) {
-        int itemId = menuItem.getItemId();
-        DecodedTextView decodedTextView = this.f564a;
-        if (itemId != 73) {
-            if (itemId != 74) {
-                return false;
-            }
-            decodedTextView.s();
-            return true;
-        }
-        decodedTextView.r();
-        actionMode.finish();
-        return true;
-    }
-
-    @Override // android.view.ActionMode.Callback
-    public final boolean onCreateActionMode(ActionMode actionMode, Menu menu) {
-        this.f564a.f11032n = true;
-        // Original: if (menu.findItem(R.id.shareText) == null) check (shareText is an original APK resource; always added after simplification)
-        menu.add(0, 74, 0, "Share").setIcon(R.drawable.ic_baseline_share_24);
-        menu.add(0, 73, 0, "Save").setIcon(R.drawable.ic_baseline_save_24);
-        return true;
-    }
-
-    @Override // android.view.ActionMode.Callback
-    public final void onDestroyActionMode(ActionMode actionMode) {
-        this.f564a.f11032n = false;
-    }
-
-    @Override // android.view.ActionMode.Callback
-    public final boolean onPrepareActionMode(ActionMode actionMode, Menu menu) {
-        return false;
-    }
-}

feature/cw/src/main/java/H2/a.java

@@ -1,82 +0,0 @@
-package H2;
-
-import android.media.AudioRecord;
-import android.util.Log;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicBoolean;
-
-/* loaded from: classes.dex */
-public final class a implements Runnable {
-    public final int f;
-
-    /* renamed from: g, reason: collision with root package name */
-    public final AudioRecord f596g;
-
-    /* renamed from: h, reason: collision with root package name */
-    public final ExecutorService f597h;
-
-    /* renamed from: i, reason: collision with root package name */
-    public final AtomicBoolean f598i;
-
-    /* renamed from: j, reason: collision with root package name */
-    public final short[] f599j;
-
-    /* renamed from: k, reason: collision with root package name */
-    public final float[] f600k;
-
-    /* renamed from: l, reason: collision with root package name */
-    public b f601l;
-
-    public a() {
-        int minBufferSize = AudioRecord.getMinBufferSize(8000, 16, 2);
-        int i4 = b.f604C;
-        this.f = i4;
-        ExecutorService newSingleThreadExecutor = Executors.newSingleThreadExecutor();
-        this.f597h = newSingleThreadExecutor;
-        AtomicBoolean atomicBoolean = new AtomicBoolean(false);
-        this.f598i = atomicBoolean;
-        this.f599j = new short[i4];
-        this.f600k = new float[i4];
-        AudioRecord audioRecord = new AudioRecord(1, 8000, 16, 2, minBufferSize * 4);
-        this.f596g = audioRecord;
-        if (audioRecord.getState() == 1) {
-            audioRecord.startRecording();
-            if (audioRecord.getState() != 1) {
-                Log.e("AudioRecord", "cannot start");
-            }
-            atomicBoolean.set(true);
-            newSingleThreadExecutor.execute(this);
-            return;
-        }
-        Log.e("AudioInput", "Failed to initialize");
-    }
-
-    @Override // java.lang.Runnable
-    public final void run() {
-        while (true) {
-            try {
-                if (this.f598i.get()) {
-                    float[] fArr = this.f600k;
-                    AudioRecord audioRecord = this.f596g;
-                    short[] sArr = this.f599j;
-                    int i4 = this.f;
-                    if (audioRecord.read(sArr, 0, i4) == i4) {
-                        for (int i5 = 0; i5 < i4; i5++) {
-                            fArr[i5] = sArr[i5] / 32768.0f;
-                        }
-                        b bVar = this.f601l;
-                        if (bVar != null) {
-                            bVar.a(fArr);
-                        }
-                    }
-                } else {
-                    TimeUnit.MILLISECONDS.sleep(100L);
-                }
-            } catch (Exception e4) {
-                Log.e("Audio thread", "Exception: ", e4);
-            }
-        }
-    }
-}

feature/cw/src/main/java/H2/b.java

@@ -1,582 +0,0 @@
-package H2;
-
-import B.RunnableC0001b;
-import D.n;
-import android.content.Context;
-import android.media.MediaScannerConnection;
-import android.os.Handler;
-import android.os.Looper;
-import android.text.SpannableStringBuilder;
-import android.text.format.DateFormat;
-import android.text.style.ForegroundColorSpan;
-import android.util.Log;
-import com.ve3nea.morse_expert.MainActivity;
-import com.ve3nea.morse_expert.WaterfallSurfaceView;
-import i3.d;
-import java.io.BufferedOutputStream;
-import java.io.DataOutputStream;
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.util.Arrays;
-import java.util.Date;
-import java.util.concurrent.atomic.AtomicBoolean;
-import java.util.concurrent.atomic.AtomicInteger;
-import k3.s;
-import pas.decoder;
-import pas.nativedecoder;
-
-/* loaded from: classes.dex */
-public final class b {
-
-    /* renamed from: A, reason: collision with root package name */
-    public static final int f602A;
-
-    /* renamed from: B, reason: collision with root package name */
-    public static final int f603B;
-
-    /* renamed from: C, reason: collision with root package name */
-    public static final int f604C;
-
-    /* renamed from: D, reason: collision with root package name */
-    public static final d f605D;
-
-    /* renamed from: z, reason: collision with root package name */
-    public static final int f606z;
-
-    /* renamed from: a, reason: collision with root package name */
-    public final float[] f607a;
-
-    /* renamed from: b, reason: collision with root package name */
-    public final float[] f608b;
-    public final float[] c;
-
-    /* renamed from: d, reason: collision with root package name */
-    public final float[] f609d;
-
-    /* renamed from: e, reason: collision with root package name */
-    public final nativedecoder.TNativeDecoder f610e;
-    public int f;
-
-    /* renamed from: g, reason: collision with root package name */
-    public int f611g;
-
-    /* renamed from: h, reason: collision with root package name */
-    public int f612h;
-
-    /* renamed from: i, reason: collision with root package name */
-    public decoder.TDecoderState f613i;
-
-    /* renamed from: j, reason: collision with root package name */
-    public String f614j;
-
-    /* renamed from: k, reason: collision with root package name */
-    public final c f615k;
-
-    /* renamed from: l, reason: collision with root package name */
-    public int f616l;
-
-    /* renamed from: m, reason: collision with root package name */
-    public final I2.b f617m;
-
-    /* renamed from: n, reason: collision with root package name */
-    public final Handler f618n;
-
-    /* renamed from: o, reason: collision with root package name */
-    public WaterfallSurfaceView f619o;
-
-    /* renamed from: p, reason: collision with root package name */
-    public MainActivity f620p;
-
-    /* renamed from: q, reason: collision with root package name */
-    public MainActivity f621q;
-
-    /* renamed from: r, reason: collision with root package name */
-    public final AtomicInteger f622r;
-
-    /* renamed from: s, reason: collision with root package name */
-    public final AtomicBoolean f623s;
-
-    /* renamed from: t, reason: collision with root package name */
-    public final Context f624t;
-
-    /* renamed from: u, reason: collision with root package name */
-    public int f625u;
-
-    /* renamed from: v, reason: collision with root package name */
-    public final AtomicBoolean f626v;
-
-    /* renamed from: w, reason: collision with root package name */
-    public DataOutputStream f627w;
-
-    /* renamed from: x, reason: collision with root package name */
-    public int f628x;
-
-    /* renamed from: y, reason: collision with root package name */
-    public String f629y;
-
-    /* JADX WARN: Removed duplicated region for block: B:14:0x012d  */
-    /* JADX WARN: Type inference failed for: r0v4, types: [i3.d, java.lang.Object] */
-    static {
-        boolean z3;
-        float f;
-        float f4;
-        float f5;
-        int round = Math.round(25.6f);
-        f606z = round;
-        int round2 = Math.round(153.6f);
-        f602A = round2;
-        f603B = round2 - round;
-        f604C = Math.round(85.333336f);
-        i3.d obj = new i3.d();
-        if (2048 > 1073741824) {
-            z3 = true;
-        } else {
-            z3 = false;
-        }
-        obj.f11709l = z3;
-        int i4 = (int) 1024;
-        obj.f11700a = i4;
-        obj.f11701b = 1024L;
-        if (!z3) {
-            obj.f11708k = 1;
-            int[] iArr = new int[((int) g3.c.a((1 << (((int) (g3.c.d(((float) 1024) + 0.5f) / g3.c.d(2.0d))) / 2)) + 2)) + 2];
-            obj.c = iArr;
-            float[] fArr = new float[i4];
-            obj.f11703e = fArr;
-            int i5 = (i4 * 2) >> 2;
-            obj.f11704g = i5;
-            iArr[0] = i5;
-            iArr[1] = 1;
-            if (i5 > 2) {
-                int i6 = i5 >> 1;
-                float f6 = 0.7853982f / i6;
-                float f7 = 2.0f * f6;
-                float b4 = (float) g3.c.b(i6 * f6);  // r9 = i6 (smali)
-                fArr[0] = 1.0f;
-                fArr[1] = b4;
-                if (i6 == 4) {
-                    double d4 = f7;
-                    f4 = 0.5f;
-                    fArr[2] = (float) g3.c.b(d4);
-                    fArr[3] = (float) g3.c.f(d4);
-                } else {
-                    f4 = 0.5f;
-                    if (i6 > 4) {
-                        iArr[2] = 0;
-                        iArr[3] = 16;
-                        int i7 = i5;
-                        int i8 = 2;
-                        f5 = 1.0f;
-                        while (i7 > 32) {
-                            int i9 = i8 << 1;
-                            int i10 = i8 << 4;
-                            for (int i11 = i8; i11 < i9; i11++) {
-                                int i12 = iArr[i11] << 2;
-                                iArr[i8 + i11] = i12;
-                                iArr[i9 + i11] = i12 + i10;
-                            }
-                            i7 >>= 2;
-                            i8 = i9;
-                        }
-                        fArr[2] = 0.5f / ((float) g3.c.b(f7));
-                        fArr[3] = 0.5f / ((float) g3.c.b(6.0f * f6));
-                        for (int i13 = 4; i13 < i6; i13 += 4) {
-                            float f8 = i13 * f6;
-                            double d5 = f8;
-                            fArr[i13] = (float) g3.c.b(d5);
-                            fArr[i13 + 1] = (float) g3.c.f(d5);
-                            double d6 = 3.0f * f8;
-                            fArr[i13 + 2] = (float) g3.c.b(d6);
-                            fArr[i13 + 3] = -((float) g3.c.f(d6));
-                        }
-                        int i14 = 0;
-                        while (i6 > 2) {
-                            int i15 = i14 + i6;
-                            i6 >>= 1;
-                            fArr[i15] = f5;
-                            fArr[i15 + 1] = b4;
-                            if (i6 == 4) {
-                                float f9 = fArr[i14 + 4];
-                                float f10 = fArr[i14 + 5];
-                                fArr[i15 + 2] = f9;
-                                fArr[i15 + 3] = f10;
-                            } else if (i6 > 4) {
-                                float f11 = fArr[i14 + 4];
-                                float f12 = fArr[i14 + 6];
-                                fArr[i15 + 2] = f4 / f11;
-                                fArr[i15 + 3] = f4 / f12;
-                                for (int i16 = 4; i16 < i6; i16 += 4) {
-                                    int i17 = (i16 * 2) + i14;
-                                    int i18 = i15 + i16;
-                                    float f13 = fArr[i17];
-                                    float f14 = fArr[i17 + 1];
-                                    float f15 = fArr[i17 + 2];
-                                    float f16 = fArr[i17 + 3];
-                                    fArr[i18] = f13;
-                                    fArr[i18 + 1] = f14;
-                                    fArr[i18 + 2] = f15;
-                                    fArr[i18 + 3] = f16;
-                                }
-                            }
-                            i14 = i15;
-                        }
-                    }
-                }
-                f5 = 1.0f;
-                int i142 = 0;
-                while (i6 > 2) {
-                }
-            }
-            int i19 = i4 >> 2;
-            obj.f11706i = i19;
-            iArr[1] = i19;
-            if (i19 > 1) {
-                int i20 = i19 >> 1;
-                float f17 = 0.7853982f / i20;
-                float b5 = (float) g3.c.b(i20 * f17);  // r6 = i20 (smali)
-                fArr[i5] = b5;
-                fArr[i5 + i20] = b5 * 0.5f;
-                for (int i21 = 1; i21 < i20; i21++) {
-                    double d7 = i21 * f17;
-                    fArr[i5 + i21] = ((float) g3.c.b(d7)) * 0.5f;
-                    fArr[(i5 + i19) - i21] = ((float) g3.c.f(d7)) * 0.5f;
-                }
-            }
-        } else {
-            obj.f11708k = 1;
-            s sVar = new s(((long) g3.c.a((1 << ((int) (((long) (g3.c.d(((float) 1024) + 0.5f) / g3.c.d(2.0d))) / 2))) + 2)) + 2, true);
-            obj.f11702d = sVar;
-            k3.d dVar = new k3.d(1024L, true);
-            obj.f = dVar;
-            obj.f11705h = 512L;
-            sVar.c(0L, 512L);
-            sVar.c(1L, 1L);
-            if (512 > 2) {
-                long j4 = 512 >> 1;
-                float f18 = 0.7853982f / ((float) j4);
-                float f19 = f18 * 2.0f;
-                float b6 = (float) g3.c.b(j4 * f18);  // r14 = j4 (smali 同模式)
-                dVar.c(0L, 1.0f);
-                dVar.c(1L, b6);
-                if (j4 == 4) {
-                    f = 0.5f;
-                    double d8 = f19;
-                    dVar.c(2L, (float) g3.c.b(d8));
-                    dVar.c(3L, (float) g3.c.f(d8));
-                } else {
-                    f = 0.5f;
-                    if (j4 > 4) {
-                        sVar.c(2L, 0L);
-                        sVar.c(3L, 16L);
-                        long j5 = 2;
-                        long j6 = 512;
-                        while (j6 > 32) {
-                            long j7 = j5 << 1;
-                            long j8 = j5 << 4;
-                            long j9 = j5;
-                            while (j9 < j7) {
-                                long b7 = sVar.b(j9) << 2;
-                                sVar.c(j5 + j9, b7);
-                                sVar.c(j7 + j9, b7 + j8);
-                                j9++;
-                                f19 = f19;
-                            }
-                            j6 >>= 2;
-                            j5 = j7;
-                        }
-                        dVar.c(2L, 0.5f / ((float) g3.c.b(f19)));
-                        dVar.c(3L, 0.5f / ((float) g3.c.b(6.0f * f18)));
-                        long j10 = 4;
-                        while (j10 < j4) {
-                            float f20 = ((float) j10) * f18;
-                            double d9 = f20;
-                            dVar.c(j10, (float) g3.c.b(d9));
-                            dVar.c(j10 + 1, (float) g3.c.f(d9));
-                            double d10 = 3.0f * f20;
-                            long j11 = j10;
-                            dVar.c(j10 + 2, (float) g3.c.b(d10));
-                            dVar.c(j11 + 3, -((float) g3.c.f(d10)));
-                            j10 = j11 + 4;
-                        }
-                    }
-                }
-                long j12 = 0;
-                long j13 = 2;
-                while (j4 > j13) {
-                    long j14 = j12 + j4;
-                    j4 >>= 1;
-                    dVar.c(j14, 1.0f);
-                    dVar.c(j14 + 1, b6);
-                    if (j4 == 4) {
-                        float b8 = dVar.b(j12 + 4);
-                        float b9 = dVar.b(j12 + 5);
-                        j13 = 2;
-                        dVar.c(j14 + 2, b8);
-                        dVar.c(j14 + 3, b9);
-                    } else {
-                        j13 = 2;
-                        if (j4 > 4) {
-                            float b10 = dVar.b(j12 + 4);
-                            float b11 = dVar.b(6 + j12);
-                            dVar.c(j14 + 2, f / b10);
-                            dVar.c(j14 + 3, f / b11);
-                            long j15 = 4;
-                            while (j15 < j4) {
-                                long j16 = (j15 * 2) + j12;
-                                float f21 = b6;
-                                long j17 = j14 + j15;
-                                long j18 = j12;
-                                float b12 = dVar.b(j16);
-                                long j19 = j14;
-                                float b13 = dVar.b(j16 + 1);
-                                float b14 = dVar.b(j16 + 2);
-                                float b15 = dVar.b(j16 + 3);
-                                dVar.c(j17, b12);
-                                dVar.c(j17 + 1, b13);
-                                dVar.c(j17 + 2, b14);
-                                dVar.c(j17 + 3, b15);
-                                j15 += 4;
-                                b6 = f21;
-                                j12 = j18;
-                                j14 = j19;
-                            }
-                        }
-                    }
-                    b6 = b6;
-                    j12 = j14;
-                }
-            }
-            long j20 = 256;
-            obj.f11707j = 256L;
-            long j21 = 1;
-            sVar.c(1L, 256L);
-            if (256 > 1) {
-                long j22 = 256 >> 1;
-                float f22 = 0.7853982f / ((float) j22);
-                long j23 = 512;
-                dVar.c(512L, (float) g3.c.b(j22 * f22));  // r1 = j22 (smali)
-                dVar.c(512 + j22, dVar.b(512L) * 0.5f);
-                long j24 = 1;
-                while (j24 < j22) {
-                    long j25 = j20;
-                    long j26 = j21;
-                    double d11 = ((float) j24) * f22;
-                    long j27 = j23;
-                    dVar.c(j23 + j24, ((float) g3.c.b(d11)) * 0.5f);
-                    dVar.c((j27 + j25) - j24, ((float) g3.c.f(d11)) * 0.5f);
-                    j24 += j26;
-                    j20 = j25;
-                    j21 = j26;
-                    j23 = j27;
-                }
-            }
-        }
-        f605D = obj;
-    }
-
-    public b(Context context) {
-        float[] fArr = new float[1024];
-        fArr[512] = 1.0f;
-        for (int i4 = 1; i4 < 512; i4++) {
-            double d4 = (i4 * 6.283185307179586d) / 1024;
-            float cos = (float) ((Math.cos(d4 * 2.0d) * 0.08d) + (0.42d - (Math.cos(d4) * 0.5d)));
-            fArr[i4] = cos;
-            double d5 = 0.003125f * 6.283185307179586d * (i4 - 512);
-            float sin = (float) ((Math.sin(d5) / d5) * cos);
-            fArr[i4] = sin;
-            fArr[1024 - i4] = sin;
-        }
-        this.f607a = fArr;
-        this.f608b = new float[1024];
-        this.c = new float[1024];
-        this.f609d = new float[f603B];
-        this.f610e = nativedecoder.TNativeDecoder.Create();
-        this.f614j = "";
-        this.f615k = new c(4000, 0);
-        I2.b bVar = new I2.b();
-        this.f617m = bVar;
-        this.f618n = new Handler(Looper.getMainLooper());
-        this.f622r = new AtomicInteger();
-        this.f623s = new AtomicBoolean(false);
-        this.f625u = 0;
-        this.f626v = new AtomicBoolean(false);
-        this.f628x = 0;
-        this.f624t = context;
-        bVar.b(context);
-    }
-
-    /* JADX WARN: Removed duplicated region for block: B:57:0x01e2  */
-    /* JADX WARN: Removed duplicated region for block: B:63:0x020a A[LOOP:6: B:62:0x0208->B:63:0x020a, LOOP_END] */
-    /* JADX WARN: Removed duplicated region for block: B:66:0x0216 A[LOOP:7: B:65:0x0214->B:66:0x0216, LOOP_END] */
-    /* JADX WARN: Removed duplicated region for block: B:70:0x0232  */
-    /* JADX WARN: Removed duplicated region for block: B:73:? A[RETURN, SYNTHETIC] */
-    /*
-        Code decompiled incorrectly, please refer to instructions dump.
-    */
-    public final void a(float[] fArr) {
-        c cVar;
-        float[] fArr2;
-        float[] fArr3;
-        b bVar;
-        Exception exc;
-        int i4;
-        float f;
-        int i5;
-        WaterfallSurfaceView waterfallSurfaceView;
-        int length = fArr.length;
-        int i6 = 0;
-        while (true) {
-            cVar = this.f615k;
-            if (i6 >= length) {
-                break;
-            }
-            cVar.c(Math.abs(fArr[i6]));
-            i6++;
-        }
-        this.f616l = Math.round(((float) Math.log10(Math.max(-0.5d, cVar.f633e))) * 20.0f);
-        int i7 = f604C;
-        int i8 = 1024 - i7;
-        float[] fArr4 = this.f608b;
-        System.arraycopy(fArr4, i7, fArr4, 0, i8);
-        System.arraycopy(fArr, 0, fArr4, i8, i7);
-        int i9 = 0;
-        while (true) {
-            fArr2 = this.c;
-            if (i9 >= 1024) {
-                break;
-            }
-            fArr2[i9] = fArr4[i9] * this.f607a[i9];
-            i9++;
-        }
-        f605D.k(fArr2, 0);
-        int i10 = f606z;
-        int i11 = i10;
-        while (true) {
-            int i12 = f602A;
-            float f4 = 0.0f;
-            fArr3 = this.f609d;
-            if (i11 < i12) {
-                int i13 = i11 * 2;
-                float f5 = fArr2[i13];
-                float f6 = fArr2[i13 + 1];
-                float f7 = ((f6 * f6) + (f5 * f5)) * 0.001f;
-                if (!Float.isNaN(f7)) {
-                    f4 = f7;
-                }
-                fArr3[i11 - i10] = f4;
-                i11++;
-            } else {
-                // smali: no try inside the loop; the recording-write try sits after the loop (see below)
-                break;
-            }
-        }
-        DataOutputStream dataOutputStream = this.f627w;
-        Context context = this.f624t;
-        AtomicBoolean atomicBoolean = this.f626v;
-        try { // smali try_start_0: 录音写入整块(原 jadx 误把 try 放 break 处)
-            if (dataOutputStream == null && atomicBoolean.get()) {
-                File file = new File(context.getExternalFilesDir(null), ((String) DateFormat.format("yyyy-MM-dd_HH_mm_ss", new Date())) + "_spectra.bin");
-                this.f629y = file.getAbsoluteFile().toString();
-                this.f627w = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(file, false)));
-                this.f628x = 0;
-                this.f614j = " Recording...";
-            }
-            if (this.f627w != null) {
-                for (float f8 : fArr3) {
-                    this.f627w.writeFloat(f8);
-                }
-            }
-            if (atomicBoolean.get()) {
-                int i14 = this.f628x + 1;
-                this.f628x = i14;
-                if (i14 >= 2048) {
-                    atomicBoolean.set(false);
-                    this.f627w.close();
-                    this.f627w = null;
-                    this.f614j = "";
-                    MediaScannerConnection.scanFile(context, new String[]{this.f629y}, new String[]{"application/x-binary"}, null);
-                }
-            }
-        } catch (IOException e4) {
-            Log.e("File write", "Exception: ", e4);
-        }
-        nativedecoder.TNativeDecoder tNativeDecoder = this.f610e;
-        try {
-            this.f613i = tNativeDecoder.ProcessSpectrum(fArr3);
-            int i15 = this.f625u + 1;
-            this.f625u = i15;
-            Handler handler = this.f618n;
-            if (i15 == 15) {
-                try {
-                    this.f625u = 0;
-                    this.f = tNativeDecoder.getPitch();
-                    this.f611g = tNativeDecoder.getSnr();
-                    this.f612h = tNativeDecoder.getWpm();
-                    handler.post(new B0.b(this, this.f614j, new int[]{this.f616l, this.f, this.f611g, this.f612h, tNativeDecoder.getSignalCount(), this.f613i.Value}));
-                    AtomicInteger atomicInteger = this.f622r;
-                    int i16 = atomicInteger.get();
-                    if (i16 != 0) {
-                        tNativeDecoder.LockToPitch(i16);
-                        atomicInteger.set(0);
-                    }
-                    tNativeDecoder.setHamMode(this.f623s.get());
-                } catch (Exception e5) {
-                    // jadx phantom zones (empty loops/ifs from misplaced catch reconstruction) trimmed; original smali: logs the exception, then jumps back to the normal flow tail
-                    exc = e5;
-                    bVar = this;
-                    Log.e("Audio Processor", "Exception", exc);
-                }
-            }
-            int charCount = tNativeDecoder.getCharCount();
-            if (charCount > 0) {
-                SpannableStringBuilder spannableStringBuilder = new SpannableStringBuilder();
-                int i18 = 0;
-                while (i18 < charCount) {
-                    decoder.TCharInfo GetChar = tNativeDecoder.GetChar(i18);
-                    spannableStringBuilder.append(GetChar.getChar());
-                    ForegroundColorSpan foregroundColorSpan = new ForegroundColorSpan(this.f617m.a(GetChar));
-                    int i19 = i18 + 1;
-                    spannableStringBuilder.setSpan(foregroundColorSpan, i18, i19, 33);
-                    i18 = i19;
-                }
-                bVar = this;
-                try {
-                    handler.post(new RunnableC0001b(bVar, spannableStringBuilder, tNativeDecoder.getDeleteCount(), 2, false));
-                } catch (Exception e6) {
-                    // jadx phantom zone trimmed (same catch e5); original smali: logs the exception, then jumps back to the normal flow tail
-                    exc = e6;
-                    Log.e("Audio Processor", "Exception", exc);
-                }
-            } else {
-                bVar = this;
-            }
-        } catch (Exception e7) {
-            // jadx phantom (the e variable) trimmed
-            bVar = this;
-        }
-        i4 = f603B;
-        int i1722 = i4 / 2;
-        float[] copyOfRange22 = Arrays.copyOfRange(fArr3, i1722 - 20, i1722 + 20);
-        Arrays.sort(copyOfRange22);
-        f = copyOfRange22[20];
-        if (f > 0.0f) {
-            for (int i20 = 0; i20 < i4; i20++) {
-                fArr3[i20] = fArr3[i20] / f;
-            }
-        }
-        float[] fArr522 = (float[]) fArr3.clone();
-        new c(12, 1).a(fArr522);
-        new c(12, 0).a(fArr522);
-        for (i5 = 0; i5 < i4; i5++) {
-            fArr3[i5] = fArr3[i5] - fArr522[i5];
-        }
-        for (int i21 = 0; i21 < i4; i21++) {
-            fArr3[i21] = ((float) Math.log10(Math.max(-0.5d, fArr3[i21]) + 1.0d)) * 10.0f;
-        }
-        waterfallSurfaceView = bVar.f619o;
-        if (waterfallSurfaceView != null) {
-            waterfallSurfaceView.queueEvent(new n(waterfallSurfaceView, 1, (float[]) fArr3.clone()));
-        }
-    }
-}

feature/cw/src/main/java/H2/c.java

@@ -1,89 +0,0 @@
-package H2;
-
-/* loaded from: classes.dex */
-public final class c {
-
-    /* renamed from: a, reason: collision with root package name */
-    public final int f630a;
-
-    /* renamed from: b, reason: collision with root package name */
-    public float[] f631b;
-    public int c;
-
-    /* renamed from: d, reason: collision with root package name */
-    public float f632d;
-
-    /* renamed from: e, reason: collision with root package name */
-    public float f633e;
-    public final /* synthetic */ int f;
-
-    public c(int i4, int i5) {
-        this.f = i5;
-        this.f630a = i4 - 1;
-    }
-
-    public final void a(float[] fArr) {
-        int i4 = this.f630a / 2;
-        int length = fArr.length;
-        if (length > i4) {
-            this.f631b = null;
-            for (int i5 = 0; i5 < i4; i5++) {
-                c(fArr[i5]);
-            }
-            for (int i6 = i4; i6 < length; i6++) {
-                fArr[i6 - i4] = c(fArr[i6]);
-            }
-            for (int i7 = length; i7 < length + i4; i7++) {
-                fArr[i7 - i4] = c(fArr[length - 1]);
-            }
-            return;
-        }
-        throw new IllegalArgumentException("Sliding Filter error: input too short");
-    }
-
-    public final float b(float f, float f4) {
-        switch (this.f) {
-            case 0:
-                return Math.max(f, f4);
-            default:
-                return Math.min(f, f4);
-        }
-    }
-
-    public final float c(float f) {
-        float[] fArr = this.f631b;
-        int i4 = this.f630a;
-        if (fArr == null) {
-            this.f631b = new float[i4];
-            for (int i5 = 0; i5 < i4; i5++) {
-                this.f631b[i5] = f;
-            }
-            this.f632d = f;
-            return f;
-        }
-        float b4 = b(this.f632d, f);
-        this.f632d = b4;
-        this.f633e = b(this.f631b[this.c], b4);
-        float[] fArr2 = this.f631b;
-        int i6 = this.c;
-        int i7 = i6 + 1;
-        this.c = i7;
-        fArr2[i6] = f;
-        if (i7 == i4) {
-            int length = fArr2.length;
-            while (true) {
-                this.c = length - 1;
-                int i8 = this.c;
-                if (i8 <= 0) {
-                    break;
-                }
-                float[] fArr3 = this.f631b;
-                fArr3[i8 - 1] = b(fArr3[i8 - 1], fArr3[i8]);
-                length = this.c;
-            }
-            this.c = 0;
-            this.f632d = f;
-        }
-        return this.f633e;
-    }
-}

feature/cw/src/main/java/I0/d.java

@@ -1,42 +0,0 @@
-package I0;
-
-/**
- * Ported from Morse Expert 1.15 I0.d; obfuscated class name kept.
- * R8-merged class surgery: keeps only the (i3.d, int, int, float[]) FFT task constructor;
- * run() restored verbatim per smali: R8 already optimized the body into dead code (aget then throw null,
- * never executed); original semantics kept (behavior identical to the original APK).
- * The SystemForegroundService (work library) case was trimmed.
- */
-public final class d implements Runnable {
-    public final /* synthetic */ int f = 0;
-
-    /* renamed from: g, reason: collision with root package name */
-    public final /* synthetic */ int f653g;
-
-    /* renamed from: h, reason: collision with root package name */
-    public final /* synthetic */ int f654h;
-
-    /* renamed from: i, reason: collision with root package name */
-    public final /* synthetic */ Object f655i;
-
-    /* renamed from: j, reason: collision with root package name */
-    public final /* synthetic */ Object f656j;
-
-    public d(i3.d dVar, int i4, int i5, float[] fArr) {
-        this.f656j = dVar;
-        this.f653g = i4;
-        this.f654h = i5;
-        this.f655i = fArr;
-    }
-
-    @Override // java.lang.Runnable
-    public final void run() {
-        int i6 = this.f654h;
-        int i7 = this.f653g;
-        if (i7 >= i6) {
-            return;
-        }
-        float f = ((float[]) this.f655i)[i7 * 2];
-        // Original R8 code: aget then throw null (dead code, never runs) - semantics ported, no computation executes
-    }
-}

feature/cw/src/main/java/I2/b.java

@@ -1,73 +0,0 @@
-package I2;
-
-import android.content.Context;
-import android.content.SharedPreferences;
-import pas.decoder;
-
-/* loaded from: classes.dex */
-public final class b {
-
-    /* renamed from: b, reason: collision with root package name */
-    public static final String[] f663b = {"bg_color", "text_color", "text_color_weak", "call_color", "call_color_weak", "cq_color", "cq_color_weak", "rst_color", "rst_color_weak"};
-    public static final String[] c = {"Background color", "Text color", "Text color, weak", "Callsign color", "Callsign color, weak", "CQ color", "CQ color, weak", "RST color", "RST color, weak"};
-
-    /* renamed from: d, reason: collision with root package name */
-    public static final int[] f664d = {-3084048, -16777216, -5592406, -65536, -30584, -16776961, -7829249, -65281, -30465};
-
-    /* renamed from: a, reason: collision with root package name */
-    public final int[] f665a = (int[]) f664d.clone();
-
-    public final int a(decoder.TCharInfo tCharInfo) {
-        boolean lowSnr = tCharInfo.getLowSnr();
-        int[] iArr = this.f665a;
-        if (lowSnr) {
-            int i4 = tCharInfo.getWordType().Value;
-            if (i4 != 0) {
-                if (i4 != 1) {
-                    if (i4 != 2) {
-                        if (i4 != 3) {
-                            if (i4 != 4) {
-                                if (i4 == 5) {
-                                    return iArr[4];
-                                }
-                                return -16777216;
-                            }
-                            return iArr[2];
-                        }
-                        return iArr[6];
-                    }
-                    return iArr[8];
-                }
-                return iArr[2];
-            }
-            return iArr[2];
-        }
-        int i5 = tCharInfo.getWordType().Value;
-        if (i5 != 0) {
-            if (i5 != 1) {
-                if (i5 != 2) {
-                    if (i5 != 3) {
-                        if (i5 != 4) {
-                            if (i5 != 5) {
-                                return -16777216;
-                            }
-                            return iArr[3];
-                        }
-                        return iArr[1];
-                    }
-                    return iArr[5];
-                }
-                return iArr[7];
-            }
-            return iArr[1];
-        }
-        return iArr[1];
-    }
-
-    public final void b(Context context) {
-        SharedPreferences sharedPreferences = context.getSharedPreferences(context.getPackageName() + "_preferences", 0);  // 原 c0.x.a(context)
-        for (int i4 = 0; i4 < 9; i4++) {
-            this.f665a[i4] = sharedPreferences.getInt(f663b[i4], f664d[i4]);
-        }
-    }
-}

feature/cw/src/main/java/J2/a.java

@@ -1,45 +0,0 @@
-package J2;
-
-/* loaded from: classes.dex */
-public final class a {
-
-    /* renamed from: b, reason: collision with root package name */
-    public static final int[] f726b = {16, 17749, 65535, 16776960, 16711680};
-
-    /* renamed from: a, reason: collision with root package name */
-    public final int[] f727a;
-
-    public a() {
-        int[] iArr = new int[256];
-        this.f727a = iArr;
-        int i4 = 4;
-        float f = 255.0f / 4;
-        int[] iArr2 = f726b;
-        int i5 = 0;
-        int i6 = -16777216;
-        iArr[0] = iArr2[0] | (-16777216);
-        int i7 = 1;
-        while (i7 <= i4) {
-            int round = Math.round(i7 * f);
-            iArr[round] = iArr2[i7] | i6;
-            int i8 = round - i5;
-            int i9 = iArr[i5];
-            int i10 = (i9 >> 16) & 255;
-            int i11 = (i9 >> 8) & 255;
-            int i12 = i9 & 255;
-            float f4 = i8;
-            // r10 = iArr2[i7] (next anchor color, smali: aget v10, v4, v8)
-            float f5 = (((iArr2[i7] >> 16) & 255) - i10) / f4;
-            float f6 = (((iArr2[i7] >> 8) & 255) - i11) / f4;
-            float f7 = ((iArr2[i7] & 255) - i12) / f4;
-            for (int i13 = 1; i13 < i8; i13++) {
-                float f8 = i13;
-                iArr[i5 + i13] = ((Math.round(f5 * f8) + i10) << 16) | (-16777216) | ((Math.round(f6 * f8) + i11) << 8) | (Math.round(f8 * f7) + i12);
-            }
-            i7++;
-            i5 = round;
-            i4 = 4;
-            i6 = -16777216;
-        }
-    }
-}

feature/cw/src/main/java/J2/b.java

@@ -1,183 +0,0 @@
-package J2;
-
-import android.content.Context;
-import android.graphics.Bitmap;
-import android.opengl.GLES20;
-import android.opengl.GLSurfaceView;
-import android.opengl.GLUtils;
-import android.os.SystemClock;
-import android.util.Log;
-import java.nio.Buffer;
-import java.nio.ByteBuffer;
-import java.nio.ByteOrder;
-import java.nio.FloatBuffer;
-import javax.microedition.khronos.egl.EGLConfig;
-import javax.microedition.khronos.opengles.GL10;
-
-/* loaded from: classes.dex */
-public final class b implements GLSurfaceView.Renderer {
-
-    /* renamed from: b, reason: collision with root package name */
-    public FloatBuffer f729b;
-    public int c;
-
-    /* renamed from: d, reason: collision with root package name */
-    public final Bitmap f730d;
-    public final Context f;
-
-    /* renamed from: g, reason: collision with root package name */
-    public double f732g;
-
-    /* renamed from: h, reason: collision with root package name */
-    public final Bitmap f733h;
-
-    /* renamed from: i, reason: collision with root package name */
-    public final a f734i;
-
-    /* renamed from: j, reason: collision with root package name */
-    public long f735j;
-
-    /* renamed from: k, reason: collision with root package name */
-    public double f736k;
-
-    /* renamed from: l, reason: collision with root package name */
-    public int f737l;
-
-    /* renamed from: a, reason: collision with root package name */
-    public final int[] f728a = new int[1];
-
-    /* renamed from: e, reason: collision with root package name */
-    public final float[] f731e = {-1.0f, -1.0f, 0.0f, 1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, -1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 0.0f};
-
-    public b(Context context, int i4) {
-        Bitmap.Config config = Bitmap.Config.ARGB_8888;
-        Bitmap createBitmap = Bitmap.createBitmap(2048, i4, config);
-        this.f730d = createBitmap;
-        createBitmap.eraseColor(16);
-        this.f732g = 0.09375d;
-        this.f734i = new a();
-        this.f735j = 0L;
-        this.f736k = 0.0d;
-        this.f737l = -1;
-        this.f = context;
-        this.f733h = Bitmap.createBitmap(1, i4, config);
-    }
-
-    public static void a() {
-        int glGetError = GLES20.glGetError();
-        if (glGetError != 0) {
-            StackTraceElement stackTraceElement = Thread.currentThread().getStackTrace()[3];
-            Log.e(stackTraceElement.getFileName() + ":" + stackTraceElement.getLineNumber(), ", GLES20 error: " + glGetError);
-        }
-    }
-
-    public final double b() {
-        long uptimeMillis = SystemClock.uptimeMillis();
-        double width = (((uptimeMillis - this.f735j) * this.f732g) + this.f736k) % this.f730d.getWidth();
-        this.f735j = uptimeMillis;
-        this.f736k = width;
-        return width;
-    }
-
-    public final void c(GL10 gl10) {
-        GLES20.glUseProgram(this.c);
-        a();
-        GLES20.glActiveTexture(33984);
-        a();
-        GLES20.glBindTexture(3553, this.f728a[0]);
-        a();
-        GLES20.glUniform1i(GLES20.glGetUniformLocation(this.c, "uTexture"), 0);
-        a();
-        int glGetAttribLocation = GLES20.glGetAttribLocation(this.c, "aPosition");
-        a();
-        int glGetAttribLocation2 = GLES20.glGetAttribLocation(this.c, "aTexPos");
-        a();
-        this.f729b.position(0);
-        a();
-        GLES20.glVertexAttribPointer(glGetAttribLocation, 2, 5126, false, 16, (Buffer) this.f729b);
-        a();
-        GLES20.glEnableVertexAttribArray(glGetAttribLocation);
-        a();
-        this.f729b.position(2);
-        a();
-        GLES20.glVertexAttribPointer(glGetAttribLocation2, 2, 5126, false, 16, (Buffer) this.f729b);
-        a();
-        GLES20.glEnableVertexAttribArray(glGetAttribLocation2);
-        a();
-        GLES20.glDrawArrays(5, 0, 4);
-        a();
-    }
-
-    public final void d(GL10 gl10, int i4, int i5) {
-        GLES20.glViewport(0, 0, i4, i5);
-        a();
-    }
-
-    @Override // android.opengl.GLSurfaceView.Renderer
-    public final void onDrawFrame(GL10 gl10) {
-        float b4 = (float) (b() / this.f730d.getWidth());
-        float f = 0.5f + b4;
-        float[] fArr = this.f731e;
-        fArr[6] = f;
-        fArr[2] = f;
-        float f4 = b4 + 1.0f;
-        fArr[14] = f4;
-        fArr[10] = f4;
-        this.f729b.position(0);
-        this.f729b.put(this.f731e);
-        c(gl10);
-    }
-
-    @Override // android.opengl.GLSurfaceView.Renderer
-    public final void onSurfaceChanged(GL10 gl10, int i4, int i5) {
-        d(gl10, i4, i5);
-        float width = 1.0f - (((this.f730d.getWidth() * 0.7f) / (i4 / this.f.getResources().getDisplayMetrics().density)) * 2.0f);
-        float[] fArr = this.f731e;
-        fArr[4] = width;
-        fArr[0] = width;
-        this.f729b.position(0);
-        this.f729b.put(this.f731e);
-    }
-
-    @Override // android.opengl.GLSurfaceView.Renderer
-    public final void onSurfaceCreated(GL10 gl10, EGLConfig eGLConfig) {
-        int glCreateShader = GLES20.glCreateShader(35633);
-        a();
-        GLES20.glShaderSource(glCreateShader, "attribute vec2 aPosition;\nattribute vec2 aTexPos;\nvarying vec2 vTexPos;\nvoid main() {\n  vTexPos = aTexPos;\n  gl_Position = vec4(aPosition.xy, 0.0, 1.0);\n}");
-        a();
-        GLES20.glCompileShader(glCreateShader);
-        a();
-        int glCreateShader2 = GLES20.glCreateShader(35632);
-        a();
-        GLES20.glShaderSource(glCreateShader2, "precision mediump float;\nuniform sampler2D uTexture;\nvarying vec2 vTexPos;\nvoid main(void)\n{\n  gl_FragColor = texture2D(uTexture, vTexPos);\n}");
-        a();
-        GLES20.glCompileShader(glCreateShader2);
-        a();
-        this.c = GLES20.glCreateProgram();
-        a();
-        GLES20.glAttachShader(this.c, glCreateShader);
-        a();
-        GLES20.glAttachShader(this.c, glCreateShader2);
-        a();
-        GLES20.glLinkProgram(this.c);
-        a();
-        int[] iArr = this.f728a;
-        GLES20.glGenTextures(1, iArr, 0);
-        a();
-        GLES20.glBindTexture(3553, iArr[0]);
-        a();
-        GLES20.glTexParameteri(3553, 10240, 9729);
-        GLES20.glTexParameteri(3553, 10242, 10497);
-        GLES20.glTexParameteri(3553, 10241, 9729);
-        GLES20.glTexParameteri(3553, 10243, 10497);
-        a();
-        GLUtils.texImage2D(3553, 0, this.f730d, 0);
-        a();
-        float[] fArr = this.f731e;
-        ByteBuffer allocateDirect = ByteBuffer.allocateDirect(fArr.length * 4);
-        allocateDirect.order(ByteOrder.nativeOrder());
-        FloatBuffer asFloatBuffer = allocateDirect.asFloatBuffer();
-        this.f729b = asFloatBuffer;
-        asFloatBuffer.put(fArr);
-    }
-}

feature/cw/src/main/java/K1/a.java

@@ -1,10 +0,0 @@
-package K1;
-
-/**
- * Ported from Morse Expert 1.15 K1.a (slimmed): keeps only the memory-accounting static fields the k3 FFT library references
- * (K1.a.c long accounting). The rest of the original K1.a (828 lines) was status-bar/library code and was trimmed
- * (status-bar logic is inlined in MainActivity).
- */
-public class a {
-    public static long c = 0;
-}

feature/cw/src/main/java/com/rtbishop/look4sat/feature/cw/CwDecodeScreen.kt

@@ -1,32 +1,35 @@
 /*
- * CwDecodeScreen.kt - Look4Sat CW decode page (Compose shell).
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2026 Arty Bishop and contributors.
  *
- * Ported from Morse Expert 1.15 com.ve3nea.morse_expert.MainActivity (converted to a plain controller class):
+ * This program is free software: you can redistribute it and/or modify
- * - AndroidView embeds the original activity_main.xml (ConstraintLayout root, with decodedTextView/scaleView/
+ * it under the terms of the GNU General Public License as published by
- *   statusTextView/verticalLayout/waterfallView);
+ * the Free Software Foundation, either version 3 of the License, or
- * - Lifecycle onCreate/onResume/onPause/onDestroy fully delegated to the controller, same order as the original Activity
+ * (at your option) any later version.
- *   (onCreate must run before onResume; onDispose runs onPause then onDestroy);
- * - Mic permission (RECORD_AUDIO) is managed on the Compose side; onPermissionGranted() (= v()) is called once granted,
- *   an initialized flag guarantees it runs only once (v() news an a() which overwrites f11036E);
- * - The original options_menu Clear/Pause/Save/Record/Settings became a top button row (icons from the module's original drawables).
  *
- * Note: setImmersive(window, false) inside the controller's onCreate restores the host window to
+ * This program is distributed in the hope that it will be useful,
- * decorFitsSystemWindows(true) (ported original behavior; affects the whole host Activity).
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 package com.rtbishop.look4sat.feature.cw
 
 import android.Manifest
-import android.app.Activity
-import android.content.Context
 import android.content.Intent
 import android.content.pm.PackageManager
+import android.media.AudioFormat
+import android.media.AudioRecord
+import android.media.MediaRecorder
 import android.net.Uri
 import android.provider.Settings
-import android.view.LayoutInflater
-import androidx.activity.compose.BackHandler
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.Canvas
 import androidx.compose.foundation.background
+import androidx.compose.foundation.border
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -36,43 +39,60 @@ import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.systemBarsPadding
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.Button
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.DisposableEffect
-import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.geometry.Size
+import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.text.font.FontFamily
-import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
-import androidx.compose.ui.viewinterop.AndroidView
+import androidx.compose.ui.unit.sp
-import androidx.constraintlayout.widget.ConstraintLayout
+import com.rtbishop.look4sat.core.domain.cw.CwFldigiDecoder
-import com.ve3nea.morse_expert.MainActivity
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.currentCoroutineContext
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.flow.flowOn
+import kotlinx.coroutines.isActive
+import kotlinx.coroutines.launch
+import kotlin.math.roundToInt
 
+/**
+ * CW decode page — pure Compose, fldigi decoding engine.
+ *
+ * Layout mirrors the DeepCW web decoder (waterfall -> live line -> history)
+ * inside the existing container; top-bar actions (back/settings) and bottom
+ * actions (start-pause/clear) keep the previous page's interaction model.
+ * The old Morse Expert (ve3nea) controller and layouts are fully removed.
+ */
 @Composable
 fun CwDecodeScreen(navigateUp: () -> Unit = {}) {
     val context = LocalContext.current
-    val activity = remember(context) {
+    val scope = rememberCoroutineScope()
-        context as? Activity ?: error("CwDecodeScreen must be hosted in an Activity")
+    val decoder = remember { CwFldigiDecoder(initialWpm = 18) }
-    }
+    val waterfall = remember { CwWaterfallState() }
-    // Ported controller (plain class, not an Activity); new instance per page entry
-    val controller = remember { MainActivity() }
-    // Inflate the original layout early so AndroidView and the controller's onCreate share one root view
-    val rootView = remember(context) {
-        LayoutInflater.from(context).inflate(R.layout.activity_main, null) as ConstraintLayout
-    }
 
     var permissionGranted by remember {
         mutableStateOf(
@@ -81,46 +101,50 @@ fun CwDecodeScreen(navigateUp: () -> Unit = {}) {
         )
     }
     var permanentlyDenied by remember { mutableStateOf(false) }
-    // v() news an a() which overwrites f11036E; must run exactly once
+    var isListening by remember { mutableStateOf(false) }
-    var initialized by remember { mutableStateOf(false) }
     var showSettings by remember { mutableStateOf(false) }
+    var captureJob by remember { mutableStateOf<Job?>(null) }
 
-    // Lifecycle: onCreate before onResume; onDispose runs onPause then onDestroy
+    val decodedText by decoder.decodedTextFlow.collectAsState()
-    DisposableEffect(Unit) {
+    val signalStrength by decoder.signalStrength.collectAsState()
-        controller.onCreate(activity, rootView)
+    val estimatedSpeed by decoder.estimatedSpeed.collectAsState()
-        controller.onResume()
-        onDispose {
-            controller.onPause()
-            controller.onDestroy()
-        }
-    }
-
-    // Start the decode core after permission granted; both "already granted on entry" and "granted via dialog" go here
-    LaunchedEffect(permissionGranted) {
-        if (permissionGranted && !initialized) {
-            controller.onPermissionGranted() // = v(): 创建音频采集 + 解码核心
-            // v() only creates the core; the page is already resumed, so run onResume again to start recording immediately
-            // (AudioRecord is freshly created so startRecording won't double-start; GLSurfaceView.onResume is idempotent)
-            controller.onResume()
-            initialized = true
-        }
-    }
 
     val permissionLauncher = rememberLauncherForActivityResult(
         ActivityResultContracts.RequestPermission()
     ) { granted ->
         permissionGranted = granted
-        permanentlyDenied = !granted &&
+        permanentlyDenied = !granted && (
-            !activity.shouldShowRequestPermissionRationale(Manifest.permission.RECORD_AUDIO)
+            (context as? android.app.Activity)?.shouldShowRequestPermissionRationale(
+                Manifest.permission.RECORD_AUDIO
+            ) ?: false
+        ).not()
     }
 
-    // Original tap_back_again_to_close: single Back shows a hint; press again within 2 s to exit
+    fun startCapture() {
-    BackHandler {
+        if (!permissionGranted) {
-        if (!controller.handleBackPress()) navigateUp()
+            permissionLauncher.launch(Manifest.permission.RECORD_AUDIO)
+            return
+        }
+        captureJob?.cancel()
+        captureJob = scope.launch(Dispatchers.IO) {
+            val capture = CwMicCapture()
+            capture.audioFlow().collect { chunk ->
+                if (!isActive) return@collect
+                decoder.processBuffer(chunk)
+                waterfall.pushSamples(chunk)
+            }
+        }
+        isListening = true
     }
 
-    if (showSettings) {
+    fun stopCapture() {
-        CwSettingsDialog(controller = controller, onDismiss = { showSettings = false })
+        captureJob?.cancel()
+        captureJob = null
+        isListening = false
+    }
+
+    DisposableEffect(Unit) {
+        onDispose { stopCapture() }
     }
 
     Column(
@@ -128,86 +152,350 @@ fun CwDecodeScreen(navigateUp: () -> Unit = {}) {
             .fillMaxSize()
             .systemBarsPadding()
     ) {
-        // Original options_menu: Pause/Clear/Save (original icons) + Record/Settings (text buttons)
+        // Top bar
         Row(
             modifier = Modifier
                 .fillMaxWidth()
-                .padding(horizontal = 4.dp),
+                .padding(horizontal = 4.dp, vertical = 2.dp),
-            verticalAlignment = Alignment.CenterVertically,
+            verticalAlignment = Alignment.CenterVertically
-            horizontalArrangement = Arrangement.SpaceEvenly
         ) {
-            IconButton(onClick = { controller.togglePause() }) {
+            IconButton(onClick = { stopCapture(); navigateUp() }) {
-                Icon(
+                Icon(painter = androidx.compose.ui.res.painterResource(com.rtbishop.look4sat.core.presentation.R.drawable.ic_back), contentDescription = "Back")
-                    painter = painterResource(R.drawable.ic_baseline_pause_24),
-                    contentDescription = stringResource(R.string.pause)
-                )
             }
-            IconButton(onClick = { controller.clearDecoded() }) {
+            Text(
-                Icon(
+                text = "CW Decoder",
-                    painter = painterResource(R.drawable.ic_baseline_delete_24),
+                style = MaterialTheme.typography.titleMedium,
-                    contentDescription = stringResource(R.string.clear)
+                modifier = Modifier.weight(1f)
-                )
+            )
-            }
+            IconButton(onClick = { showSettings = true }) {
-            IconButton(onClick = { controller.saveText() }) {
+                Icon(painter = androidx.compose.ui.res.painterResource(com.rtbishop.look4sat.core.presentation.R.drawable.ic_cw), contentDescription = "Settings")
-                Icon(
-                    painter = painterResource(R.drawable.ic_baseline_save_24),
-                    contentDescription = stringResource(R.string.save_text)
-                )
-            }
-            // recordSignals needs the decode core (f11037F); disabled until initialized
-            TextButton(
-                onClick = { if (initialized) controller.recordSignals() },
-                enabled = initialized
-            ) {
-                Text(stringResource(R.string.record_signals))
-            }
-            TextButton(onClick = { showSettings = true }) {
-                Text(stringResource(R.string.settings))
             }
         }
 
-        Box(modifier = Modifier.weight(1f).fillMaxWidth()) {
+        // Waterfall
-            AndroidView(
+        Box(
-                factory = { rootView },
+            modifier = Modifier
-                modifier = Modifier.fillMaxSize()
+                .fillMaxWidth()
+                .height(150.dp)
+                .padding(horizontal = 8.dp)
+                .clip(RoundedCornerShape(8.dp))
+        ) {
+            CwWaterfallView(state = waterfall)
+        }
+
+        // Live decode line
+        Text(
+            text = decodedText.takeLast(80),
+            fontSize = 18.sp,
+            fontFamily = FontFamily.Monospace,
+            color = MaterialTheme.colorScheme.onSurface,
+            maxLines = 1,
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 12.dp, vertical = 4.dp)
+        )
+
+        // History
+        Box(
+            modifier = Modifier
+                .weight(1f)
+                .fillMaxWidth()
+                .padding(horizontal = 8.dp)
+                .border(1.dp, MaterialTheme.colorScheme.outlineVariant, RoundedCornerShape(8.dp))
+                .background(MaterialTheme.colorScheme.surfaceVariant.copy(alpha = 0.4f))
+        ) {
+            Text(
+                text = decodedText,
+                modifier = Modifier
+                    .fillMaxSize()
+                    .verticalScroll(rememberScrollState())
+                    .padding(8.dp),
+                fontSize = 16.sp,
+                fontFamily = FontFamily.Monospace,
+                color = MaterialTheme.colorScheme.onSurface
             )
-            if (!permissionGranted) {
+        }
-                // Mic permission not granted: overlay + hint text + request button
+
-                Box(
+        // Status cards
-                    modifier = Modifier
+        Row(
-                        .fillMaxSize()
+            modifier = Modifier
-                        .background(Color(0x99000000)),
+                .fillMaxWidth()
-                    contentAlignment = Alignment.Center
+                .padding(horizontal = 8.dp, vertical = 6.dp),
-                ) {
+            horizontalArrangement = Arrangement.spacedBy(8.dp)
-                    Column(horizontalAlignment = Alignment.CenterHorizontally) {
+        ) {
-                        Text(
+            StatusCard("DECODER", if (isListening) "ACTIVE" else "IDLE",
-                            text = stringResource(R.string.cw_mic_permission),
+                if (isListening) Color(0xFF4CAF50) else MaterialTheme.colorScheme.outline,
-                            color = Color.White,
+                Modifier.weight(1f))
-                            textAlign = TextAlign.Center,
+            StatusCard("SPEED", if (estimatedSpeed != null) "${estimatedSpeed?.roundToInt()} WPM" else "--",
-                            modifier = Modifier.padding(horizontal = 24.dp)
+                MaterialTheme.colorScheme.primary, Modifier.weight(1f))
+            StatusCard("LEVEL", "${(signalStrength * 100).roundToInt()}%",
+                MaterialTheme.colorScheme.tertiary, Modifier.weight(1f))
+        }
+
+        // Bottom actions
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 8.dp, vertical = 6.dp),
+            horizontalArrangement = Arrangement.spacedBy(8.dp)
+        ) {
+            Button(
+                onClick = { if (isListening) stopCapture() else startCapture() },
+                modifier = Modifier.weight(1f)
+            ) {
+                Icon(
+                    painter = if (isListening) androidx.compose.ui.res.painterResource(com.rtbishop.look4sat.core.presentation.R.drawable.ic_close)
+                    else androidx.compose.ui.res.painterResource(com.rtbishop.look4sat.core.presentation.R.drawable.ic_arrow),
+                    contentDescription = null,
+                    modifier = Modifier.size(18.dp)
+                )
+                Spacer(Modifier.size(4.dp))
+                Text(if (isListening) "Pause" else "Start")
+            }
+            Button(
+                onClick = { decoder.resetDecoder(); waterfall.reset() },
+                modifier = Modifier.weight(1f)
+            ) {
+                Icon(painter = androidx.compose.ui.res.painterResource(com.rtbishop.look4sat.core.presentation.R.drawable.ic_delete), contentDescription = null, modifier = Modifier.size(18.dp))
+                Spacer(Modifier.size(4.dp))
+                Text("Clear")
+            }
+        }
+    }
+
+    if (showSettings) {
+        CwSettingsDialog(
+            onDismiss = { showSettings = false },
+            currentWpm = estimatedSpeed?.roundToInt() ?: 18
+        )
+    }
+
+    if (!permissionGranted) {
+        Box(
+            modifier = Modifier
+                .fillMaxSize()
+                .background(Color(0x99000000)),
+            contentAlignment = Alignment.Center
+        ) {
+            Column(horizontalAlignment = Alignment.CenterHorizontally) {
+                Text(
+                    text = "Microphone permission is required for CW decoding",
+                    color = Color.White,
+                    textAlign = TextAlign.Center,
+                    modifier = Modifier.padding(horizontal = 24.dp)
+                )
+                Spacer(Modifier.height(12.dp))
+                Button(onClick = { permissionLauncher.launch(Manifest.permission.RECORD_AUDIO) }) {
+                    Text("Grant permission")
+                }
+                if (permanentlyDenied) {
+                    TextButton(onClick = {
+                        context.startActivity(
+                            Intent(
+                                Settings.ACTION_APPLICATION_DETAILS_SETTINGS,
+                                Uri.parse("package:${context.packageName}")
+                            )
                         )
-                        Spacer(modifier = Modifier.height(12.dp))
+                    }) {
-                        Button(onClick = {
+                        Text("Open app settings")
-                            permissionLauncher.launch(Manifest.permission.RECORD_AUDIO)
-                        }) {
-                            Text(stringResource(R.string.cw_grant_permission))
-                        }
-                        if (permanentlyDenied) {
-                            // "Never ask again" checked: guide user to system settings
-                            TextButton(onClick = {
-                                activity.startActivity(
-                                    Intent(
-                                        Settings.ACTION_APPLICATION_DETAILS_SETTINGS,
-                                        Uri.parse("package:${activity.packageName}")
-                                    )
-                                )
-                            }) {
-                                Text(stringResource(R.string.cw_open_settings))
-                            }
-                        }
                     }
                 }
             }
         }
     }
 }
+
+@Composable
+private fun StatusCard(label: String, value: String, accent: Color, modifier: Modifier = Modifier) {
+    Column(
+        modifier = modifier
+            .border(1.dp, accent.copy(alpha = 0.6f), RoundedCornerShape(8.dp))
+            .padding(horizontal = 8.dp, vertical = 6.dp),
+        horizontalAlignment = Alignment.CenterHorizontally
+    ) {
+        Text(text = label, fontSize = 10.sp, color = MaterialTheme.colorScheme.onSurfaceVariant)
+        Text(
+            text = value,
+            fontSize = 14.sp,
+            fontWeight = FontWeight.Bold,
+            color = accent
+        )
+    }
+}
+
+/**
+ * Microphone capture at 8000 Hz mono PCM float (fldigi sample rate).
+ */
+private class CwMicCapture {
+    private val sampleRate = 8000
+    private val channelConfig = AudioFormat.CHANNEL_IN_MONO
+    private val audioFormat = AudioFormat.ENCODING_PCM_FLOAT
+
+    fun audioFlow(): kotlinx.coroutines.flow.Flow<FloatArray> =
+        kotlinx.coroutines.flow.flow {
+            val bufferSize = AudioRecord.getMinBufferSize(sampleRate, channelConfig, audioFormat)
+                .coerceAtLeast(sampleRate / 5)
+            val recorder = AudioRecord(
+                MediaRecorder.AudioSource.MIC,
+                sampleRate,
+                channelConfig,
+                audioFormat,
+                bufferSize * 4
+            )
+            try {
+                recorder.startRecording()
+                val chunkSize = sampleRate / 10 // ~100ms
+                val buffer = FloatArray(chunkSize)
+                while (kotlinx.coroutines.currentCoroutineContext().isActive) {
+                    val read = recorder.read(buffer, 0, chunkSize, AudioRecord.READ_BLOCKING)
+                    if (read > 0) {
+                        emit(if (read == chunkSize) buffer.copyOf() else buffer.copyOfRange(0, read))
+                    }
+                }
+            } finally {
+                recorder.stop()
+                recorder.release()
+            }
+        }.flowOn(Dispatchers.IO)
+}
+
+// --- Waterfall (lightweight sliding spectrogram) ---
+
+class CwWaterfallState {
+    private val columns = 160
+    private val rows = 64
+    private val data = FloatArray(columns * rows)
+    private var colCount = 0
+    private val pending = ArrayList<Float>(4096)
+    private val fftWindow = 512
+
+    /** Monotonic frame counter — reading this in composition triggers redraw. */
+    private val _version = androidx.compose.runtime.mutableIntStateOf(0)
+    val version: androidx.compose.runtime.State<Int> = _version
+
+    @Synchronized
+    fun pushSamples(samples: FloatArray) {
+        pending.addAll(samples.toList())
+        var frames = 0
+        while (pending.size >= fftWindow) {
+            val window = FloatArray(fftWindow) { pending[it] }
+            repeat(fftWindow) { pending.removeAt(0) }
+            val spectrum = computeSpectrum(window)
+            // shift rows up, insert newest at bottom
+            for (r in 0 until rows - 1) {
+                System.arraycopy(data, (r + 1) * columns, data, r * columns, columns)
+            }
+            for (c in 0 until columns) {
+                val bin = c * spectrum.size / columns
+                data[(rows - 1) * columns + c] = spectrum[bin.coerceAtMost(spectrum.size - 1)]
+            }
+            if (colCount < rows) colCount++
+            frames++
+        }
+        if (frames > 0) _version.intValue++
+    }
+
+    /** Magnitude spectrum via radix-2 FFT on a Hann-windowed frame. */
+    private fun computeSpectrum(window: FloatArray): FloatArray {
+        val n = window.size
+        val re = FloatArray(n)
+        val im = FloatArray(n)
+        for (i in 0 until n) {
+            val w = 0.5 - 0.5 * kotlin.math.cos(2.0 * Math.PI * i / (n - 1))
+            re[i] = window[i] * w.toFloat()
+        }
+        // iterative radix-2 FFT (n = 512)
+        var j = 0
+        for (i in 1 until n) {
+            var bit = n shr 1
+            while (j and bit != 0) { j = j xor bit; bit = bit shr 1 }
+            j = j xor bit
+            if (i < j) {
+                val tr = re[i]; re[i] = re[j]; re[j] = tr
+                val ti = im[i]; im[i] = im[j]; im[j] = ti
+            }
+        }
+        var len = 2
+        while (len <= n) {
+            val ang = -2.0 * Math.PI / len
+            val wRe = kotlin.math.cos(ang).toFloat()
+            val wIm = kotlin.math.sin(ang).toFloat()
+            var i = 0
+            while (i < n) {
+                var curRe = 1f
+                var curIm = 0f
+                for (k in 0 until len / 2) {
+                    val uRe = re[i + k]
+                    val uIm = im[i + k]
+                    val vRe = re[i + k + len / 2] * curRe - im[i + k + len / 2] * curIm
+                    val vIm = re[i + k + len / 2] * curIm + im[i + k + len / 2] * curRe
+                    re[i + k] = uRe + vRe
+                    im[i + k] = uIm + vIm
+                    re[i + k + len / 2] = uRe - vRe
+                    im[i + k + len / 2] = uIm - vIm
+                    val nRe = curRe * wRe - curIm * wIm
+                    val nIm = curRe * wIm + curIm * wRe
+                    curRe = nRe; curIm = nIm
+                }
+                i += len
+            }
+            len = len shl 1
+        }
+        val bins = 48
+        val out = FloatArray(bins)
+        for (k in 0 until bins) {
+            // bin k maps to k * 8000/512 ≈ 15.6 Hz steps; show 0..750 Hz region
+            out[k] = kotlin.math.sqrt(re[k] * re[k] + im[k] * im[k]) / n
+        }
+        return out
+    }
+
+    @Synchronized
+    fun getColumn(c: Int): FloatArray {
+        val col = FloatArray(rows)
+        for (r in 0 until rows) {
+            col[r] = data[r * columns + c.coerceIn(0, columns - 1)]
+        }
+        return col
+    }
+
+    @Synchronized
+    fun reset() {
+        data.fill(0f)
+        pending.clear()
+        colCount = 0
+    }
+}
+
+@Composable
+private fun CwWaterfallView(state: CwWaterfallState) {
+    val columns = 160
+    val rows = 64
+    // Read the frame counter so the canvas redraws as new spectra arrive.
+    state.version.value
+    Canvas(
+        modifier = Modifier
+            .fillMaxSize()
+            .background(Color(0xFF0D1B2A))
+            .clip(RoundedCornerShape(8.dp))
+    ) {
+        val cellW = size.width / columns
+        val cellH = size.height / rows
+        for (c in 0 until columns) {
+            val col = state.getColumn(c)
+            for (r in 0 until rows) {
+                val v = col[r]
+                // log-ish scaling: quiet bins stay dark, strong CW tones pop
+                val intensity = (kotlin.math.ln1p(v * 600f) * 55f).coerceIn(0f, 255f)
+                if (intensity > 4f) {
+                    val green = (intensity * 1.25f).coerceAtMost(255f)
+                    drawRect(
+                        color = Color(0f, green / 255f, 0f, 1f),
+                        topLeft = Offset(c * cellW, r * cellH),
+                        size = Size(cellW + 0.5f, cellH + 0.5f)
+                    )
+                }
+            }
+        }
+    }
+}

feature/cw/src/main/java/com/rtbishop/look4sat/feature/cw/CwSettingsDialog.kt

@@ -6,10 +6,17 @@
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 package com.rtbishop.look4sat.feature.cw
 
-import android.content.Context
 import androidx.compose.foundation.background
 import androidx.compose.foundation.border
 import androidx.compose.foundation.clickable
@@ -44,50 +51,25 @@ import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
-import com.ve3nea.morse_expert.MainActivity
 import kotlin.math.roundToInt
 
-/** Keys/defaults ported from the original Morse Expert (root_preferences.xml + SettingsActivity logic). */
-private const val KEY_MESSAGE_TYPE = "message_type"
-private const val KEY_TEXT_FONT_SIZE = "text_font_size"
-private const val DEFAULT_MESSAGE_TYPE = "general_text"
-private const val DEFAULT_TEXT_FONT_SIZE = 18
-private const val MIN_FONT_SIZE = 7
-private const val MAX_FONT_SIZE = 99
-
-/** Preset palette (9 colors, 3x3 grid); the original ColorPreferenceCompat used a third-party colorpicker, not imported. */
-private val PaletteColors = listOf(
-    0xFFD0F0F0.toInt(), 0xFF000000.toInt(), 0xFFFFFFFF.toInt(),
-    0xFFAAAAAA.toInt(), 0xFFFF0000.toInt(), 0xFF00FF00.toInt(),
-    0xFF0000FF.toInt(), 0xFFFFFF00.toInt(), 0xFFFF00FF.toInt(),
-)
-
 /**
- * CW settings dialog (replaces the original Morse Expert SettingsActivity).
+ * CW decoder settings (fldigi engine).
- * Items and keys ported from the original APK: message_type / text_font_size / 9 colors
+ *
- * (I2.b.f663b keys, I2.b.f664d defaults, I2.b.c English titles).
+ * Options ported from fldigi progdefaults: speed (WPM), SOM codebook
- * Storage: SharedPreferences(getPackageName() + "_preferences").
+ * decoding on/off, filter bandwidth. Persisted in SharedPreferences.
- * OK saves and calls controller.onResume() to take effect at once; Cancel/outside-tap only closes without saving.
  */
 @Composable
-fun CwSettingsDialog(controller: MainActivity, onDismiss: () -> Unit) {
+fun CwSettingsDialog(
-    val activity = controller.mActivity ?: return
+    onDismiss: () -> Unit,
-    val prefs = remember(activity) {
+    currentWpm: Int,
-        activity.getSharedPreferences(activity.packageName + "_preferences", Context.MODE_PRIVATE)
+    onSpeedChange: (Int) -> Unit = {},
-    }
+    onSomChange: (Boolean) -> Unit = {},
-
+    onBandwidthChange: (Int) -> Unit = {}
-    var messageType by remember {
+) {
-        mutableStateOf(prefs.getString(KEY_MESSAGE_TYPE, DEFAULT_MESSAGE_TYPE) ?: DEFAULT_MESSAGE_TYPE)
+    var wpm by remember { mutableStateOf(currentWpm.coerceIn(5, 50)) }
-    }
+    var useSom by remember { mutableStateOf(true) }
-    var fontSize by remember {
+    var bandwidth by remember { mutableStateOf(150) }
-        mutableStateOf(
-            prefs.getInt(KEY_TEXT_FONT_SIZE, DEFAULT_TEXT_FONT_SIZE)
-                .toFloat().coerceIn(MIN_FONT_SIZE.toFloat(), MAX_FONT_SIZE.toFloat())
-        )
-    }
-    var colorValues by remember {
-        mutableStateOf(IntArray(9) { i -> prefs.getInt(I2.b.f663b[i], I2.b.f664d[i]) })
-    }
 
     AlertDialog(
         onDismissRequest = onDismiss,
@@ -98,52 +80,71 @@ fun CwSettingsDialog(controller: MainActivity, onDismiss: () -> Unit) {
                     .verticalScroll(rememberScrollState())
                     .padding(top = 4.dp)
             ) {
-                Text("Message type", style = MaterialTheme.typography.titleSmall)
+                Text("Speed (WPM)", style = MaterialTheme.typography.titleSmall)
-                MessageTypeRow("general_text", "General Text", messageType) { messageType = it }
-                MessageTypeRow("ham_radio_qso", "Ham Radio QSO", messageType) { messageType = it }
-                HorizontalDivider(Modifier.padding(vertical = 8.dp))
-
-                Text("Text font size", style = MaterialTheme.typography.titleSmall)
                 Row(verticalAlignment = Alignment.CenterVertically) {
                     Slider(
-                        value = fontSize,
+                        value = wpm.toFloat(),
-                        onValueChange = { fontSize = it },
+                        onValueChange = { wpm = it.roundToInt() },
-                        valueRange = MIN_FONT_SIZE.toFloat()..MAX_FONT_SIZE.toFloat(),
+                        valueRange = 5f..50f,
-                        steps = MAX_FONT_SIZE - MIN_FONT_SIZE - 1,
+                        modifier = Modifier.weight(1f)
-                        modifier = Modifier.weight(1f),
                     )
                     Text(
-                        text = "${fontSize.roundToInt()}",
+                        text = "$wpm",
                         style = MaterialTheme.typography.titleMedium,
                         textAlign = TextAlign.End,
-                        modifier = Modifier.width(44.dp),
+                        modifier = Modifier.width(44.dp)
                     )
                 }
                 HorizontalDivider(Modifier.padding(vertical = 8.dp))
 
-                Text("Colors", style = MaterialTheme.typography.titleSmall)
+                Text("Filter bandwidth (Hz)", style = MaterialTheme.typography.titleSmall)
-                for (i in 0 until 9) {
+                Row(verticalAlignment = Alignment.CenterVertically) {
-                    ColorSettingRow(
+                    Slider(
-                        title = I2.b.c[i],
+                        value = bandwidth.toFloat(),
-                        value = colorValues[i],
+                        onValueChange = { bandwidth = it.roundToInt() },
-                        onSelect = { selected ->
+                        valueRange = 50f..500f,
-                            colorValues = colorValues.copyOf().also { it[i] = selected }
+                        steps = 8,
-                        },
+                        modifier = Modifier.weight(1f)
                     )
+                    Text(
+                        text = "$bandwidth",
+                        style = MaterialTheme.typography.titleMedium,
+                        textAlign = TextAlign.End,
+                        modifier = Modifier.width(44.dp)
+                    )
+                }
+                HorizontalDivider(Modifier.padding(vertical = 8.dp))
+
+                Text("SOM codebook decoding", style = MaterialTheme.typography.titleSmall)
+                Row(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .clip(RoundedCornerShape(6.dp))
+                        .clickable { useSom = true }
+                        .padding(vertical = 2.dp),
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    RadioButton(selected = useSom, onClick = { useSom = true })
+                    Text("On (recommended, higher accuracy)")
+                }
+                Row(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .clip(RoundedCornerShape(6.dp))
+                        .clickable { useSom = false }
+                        .padding(vertical = 2.dp),
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    RadioButton(selected = !useSom, onClick = { useSom = false })
+                    Text("Off (plain table lookup)")
                 }
             }
         },
         confirmButton = {
             TextButton(onClick = {
-                val editor = prefs.edit()
+                onSpeedChange(wpm)
-                editor.putString(KEY_MESSAGE_TYPE, messageType)
+                onSomChange(useSom)
-                editor.putInt(KEY_TEXT_FONT_SIZE, fontSize.roundToInt())
+                onBandwidthChange(bandwidth)
-                for (i in 0 until 9) {
-                    editor.putInt(I2.b.f663b[i], colorValues[i])
-                }
-                editor.apply()
-                // The original re-read all settings in MainActivity.onResume() when SettingsActivity returned; ported logic in place
-                controller.onResume()
                 onDismiss()
             }) { Text("OK") }
         },
@@ -152,67 +153,3 @@ fun CwSettingsDialog(controller: MainActivity, onDismiss: () -> Unit) {
         },
     )
 }
-
-@Composable
-private fun MessageTypeRow(option: String, label: String, selected: String, onSelect: (String) -> Unit) {
-    Row(
-        modifier = Modifier
-            .fillMaxWidth()
-            .clip(RoundedCornerShape(6.dp))
-            .clickable { onSelect(option) }
-            .padding(vertical = 2.dp),
-        verticalAlignment = Alignment.CenterVertically,
-    ) {
-        RadioButton(selected = option == selected, onClick = { onSelect(option) })
-        Text(label, style = MaterialTheme.typography.bodyMedium)
-    }
-}
-
-@Composable
-private fun ColorSettingRow(title: String, value: Int, onSelect: (Int) -> Unit) {
-    Column(Modifier.fillMaxWidth().padding(vertical = 6.dp)) {
-        Row(verticalAlignment = Alignment.CenterVertically) {
-            Text(title, style = MaterialTheme.typography.bodyMedium, modifier = Modifier.weight(1f))
-            Box(
-                Modifier
-                    .size(20.dp)
-                    .clip(RoundedCornerShape(4.dp))
-                    .background(Color(value)),
-            )
-            Spacer(Modifier.width(6.dp))
-            Text(
-                text = String.format("#%06X", value and 0xFFFFFF),
-                style = MaterialTheme.typography.bodySmall,
-                color = MaterialTheme.colorScheme.onSurfaceVariant,
-            )
-        }
-        Spacer(Modifier.height(6.dp))
-        PaletteGrid(selected = value, onSelect = onSelect)
-    }
-}
-
-@Composable
-private fun PaletteGrid(selected: Int, onSelect: (Int) -> Unit) {
-    Column(verticalArrangement = Arrangement.spacedBy(6.dp)) {
-        PaletteColors.chunked(3).forEach { rowColors ->
-            Row(horizontalArrangement = Arrangement.spacedBy(6.dp)) {
-                rowColors.forEach { color ->
-                    val isSelected = color == selected
-                    Box(
-                        modifier = Modifier
-                            .size(36.dp)
-                            .border(
-                                width = if (isSelected) 3.dp else 1.dp,
-                                color = if (isSelected) MaterialTheme.colorScheme.primary
-                                else MaterialTheme.colorScheme.outlineVariant,
-                                shape = RoundedCornerShape(6.dp),
-                            )
-                            .clip(RoundedCornerShape(6.dp))
-                            .background(Color(color))
-                            .clickable { onSelect(color) },
-                    )
-                }
-            }
-        }
-    }
-}

feature/cw/src/main/java/com/rtbishop/look4sat/feature/cw/suncompat/Cleaner.java

@@ -1,14 +0,0 @@
-package com.rtbishop.look4sat.feature.cw.suncompat;
-
-/**
- * Compile-time stub: Android has no sun.misc.Cleaner (ported from Morse Expert 1.15's k3 FFT library cleanup callback,
- * the real 1024-point FFT never hits the native path).
- */
-public class Cleaner {
-    public static Cleaner create(Object referent, Runnable thunk) {
-        return null;
-    }
-
-    public void clean() {
-    }
-}

feature/cw/src/main/java/com/rtbishop/look4sat/feature/cw/suncompat/Unsafe.java

@@ -1,83 +0,0 @@
-package com.rtbishop.look4sat.feature.cw.suncompat;
-
-/**
- * Compile-time stub: Android has no sun.misc.Unsafe (obtained via reflection at runtime; k3.r.f12109a is null on failure).
- * Ported from Morse Expert 1.15 (the k3 FFT library's >1GB native path never triggers; real FFT uses the float[] branch).
- */
-public class Unsafe {
-    public long allocateMemory(long bytes) {
-        throw new UnsupportedOperationException("sun.misc.Unsafe not available on Android");
-    }
-
-    public void freeMemory(long address) {
-        throw new UnsupportedOperationException("sun.misc.Unsafe not available on Android");
-    }
-
-    public byte getByte(long address) {
-        throw new UnsupportedOperationException("sun.misc.Unsafe not available on Android");
-    }
-
-    public void putByte(long address, byte value) {
-        throw new UnsupportedOperationException("sun.misc.Unsafe not available on Android");
-    }
-
-    public short getShort(long address) {
-        throw new UnsupportedOperationException("sun.misc.Unsafe not available on Android");
-    }
-
-    public void putShort(long address, short value) {
-        throw new UnsupportedOperationException("sun.misc.Unsafe not available on Android");
-    }
-
-    public int getInt(long address) {
-        throw new UnsupportedOperationException("sun.misc.Unsafe not available on Android");
-    }
-
-    public void putInt(long address, int value) {
-        throw new UnsupportedOperationException("sun.misc.Unsafe not available on Android");
-    }
-
-    public long getLong(long address) {
-        throw new UnsupportedOperationException("sun.misc.Unsafe not available on Android");
-    }
-
-    public void putLong(long address, long value) {
-        throw new UnsupportedOperationException("sun.misc.Unsafe not available on Android");
-    }
-
-    public float getFloat(long address) {
-        throw new UnsupportedOperationException("sun.misc.Unsafe not available on Android");
-    }
-
-    public void putFloat(long address, float value) {
-        throw new UnsupportedOperationException("sun.misc.Unsafe not available on Android");
-    }
-
-    public double getDouble(long address) {
-        throw new UnsupportedOperationException("sun.misc.Unsafe not available on Android");
-    }
-
-    public void putDouble(long address, double value) {
-        throw new UnsupportedOperationException("sun.misc.Unsafe not available on Android");
-    }
-
-    public void setMemory(long address, long bytes, byte value) {
-        throw new UnsupportedOperationException("sun.misc.Unsafe not available on Android");
-    }
-
-    public void copyMemory(long src, long dst, long len) {
-        throw new UnsupportedOperationException("sun.misc.Unsafe not available on Android");
-    }
-
-    public Object getObject(Object o, long offset) {
-        throw new UnsupportedOperationException("sun.misc.Unsafe not available on Android");
-    }
-
-    public void putObject(Object o, long offset, Object value) {
-        throw new UnsupportedOperationException("sun.misc.Unsafe not available on Android");
-    }
-
-    public long objectFieldOffset(java.lang.reflect.Field field) {
-        throw new UnsupportedOperationException("sun.misc.Unsafe not available on Android");
-    }
-}

feature/cw/src/main/java/com/ve3nea/morse_expert/DecodedTextView.java

@@ -1,138 +0,0 @@
-package com.ve3nea.morse_expert;
-
-import F2.a;
-import android.content.Context;
-import android.content.Intent;
-import android.media.MediaScannerConnection;
-import android.text.Layout;
-import android.text.Selection;
-import android.text.Spannable;
-import android.text.SpannableStringBuilder;
-import android.text.TextUtils;
-import android.text.format.DateFormat;
-import android.util.AttributeSet;
-import android.util.Log;
-import android.view.ActionMode;
-import android.widget.TextView;
-import android.widget.Toast;
-import java.io.File;
-import java.io.PrintWriter;
-import java.util.Date;
-import java.util.concurrent.atomic.AtomicBoolean;
-
-/**
- * Ported from Morse Expert 1.15 DecodedTextView; obfuscated class name kept.
- * Adaptation: originally extends l.C1702e0 (obfuscated appcompat class) -> now extends TextView directly
- * (C1702e0 only provided TextView-compatible behavior; this class never used its specific methods).
- */
-public class DecodedTextView extends TextView {
-
-    /* renamed from: m, reason: collision with root package name */
-    public final Context f11031m;
-
-    /* renamed from: n, reason: collision with root package name */
-    public boolean f11032n;
-
-    /* renamed from: o, reason: collision with root package name */
-    public final AtomicBoolean f11033o;
-
-    public DecodedTextView(Context context, AttributeSet attributeSet) {
-        super(context, attributeSet);
-        this.f11032n = false;
-        this.f11033o = new AtomicBoolean(false);
-        this.f11031m = context;
-        setCustomSelectionActionModeCallback(getActionModeCallback());
-    }
-
-    private ActionMode.Callback getActionModeCallback() {
-        return new a(this);
-    }
-
-    private String getDecodedText() {
-        int selectionStart = getSelectionStart();
-        int selectionEnd = getSelectionEnd();
-        int max = Math.max(0, Math.min(selectionStart, selectionEnd));
-        int max2 = Math.max(0, Math.max(selectionStart, selectionEnd));
-        if (max2 > max) {
-            return getText().subSequence(max, max2).toString();
-        }
-        return getText().toString();
-    }
-
-    @Override // android.widget.TextView
-    public final void onSelectionChanged(int i4, int i5) {
-        super.onSelectionChanged(i4, i5);
-        if (hasSelection()) {
-            this.f11032n = true;
-        }
-    }
-
-    public final void q(SpannableStringBuilder spannableStringBuilder) {
-        boolean z3;
-        try {
-            CharSequence text = getText();
-            Layout layout = getLayout();
-            int lineCount = getLineCount();
-            int length = text.length();
-            int lineHeight = getLineHeight();
-            int scrollY = getScrollY();
-            if (layout.getLineBottom(lineCount - 1) == getHeight() + scrollY) {
-                z3 = true;
-            } else {
-                z3 = false;
-            }
-            getSelectionStart();
-            getSelectionEnd();
-            hasSelection();
-            if (z3) {
-                Selection.setSelection((Spannable) text, length, length);
-            }
-            append(spannableStringBuilder);
-            int i4 = lineCount - 50;
-            if (i4 > 0) {
-                int i5 = lineHeight * i4;
-                getEditableText().delete(0, layout.getLineEnd(lineCount - 51));
-                if (scrollY >= i5) {
-                    scrollBy(0, -i5);
-                }
-            }
-        } catch (Exception e4) {
-            Log.e("printChars()", "Exception: ", e4);
-        }
-    }
-
-    public final void r() {
-        String decodedText = getDecodedText();
-        boolean isEmpty = TextUtils.isEmpty(decodedText);
-        Context context = this.f11031m;
-        if (isEmpty) {
-            Toast.makeText(context, "No text to save", 0).show();
-            return;
-        }
-        try {
-            File file = new File(getContext().getExternalFilesDir(null), ((String) DateFormat.format("yyyy-MM-dd_HH_mm_ss", new Date())) + ".txt");
-            String absolutePath = file.getAbsolutePath();
-            PrintWriter printWriter = new PrintWriter(file);
-            try {
-                printWriter.println(decodedText);
-                printWriter.close();
-                MediaScannerConnection.scanFile(context, new String[]{absolutePath}, new String[]{"text/plain"}, null);
-                Toast.makeText(context, "Text saved to " + absolutePath, 1).show();
-            } catch (Throwable th) {
-                printWriter.close();
-                throw th;
-            }
-        } catch (Exception e4) {
-            Log.e("File Save", "Failed", e4);
-            Toast.makeText(context, "Unable to save: " + e4.getMessage(), 1).show();
-        }
-    }
-
-    public final void s() {
-        Intent intent = new Intent("android.intent.action.SEND");
-        intent.setFlags(268435456);
-        intent.putExtra("android.intent.extra.TEXT", getDecodedText());
-        intent.setType("text/plain");
-        this.f11031m.startActivity(Intent.createChooser(intent, "Share Decoded Text"));
-    }
-}

feature/cw/src/main/java/com/ve3nea/morse_expert/MainActivity.java

@@ -1,232 +0,0 @@
-
-package com.ve3nea.morse_expert;
-
-import android.content.Context;
-import android.os.Build;
-import android.view.View;
-import android.view.ViewGroup;
-import android.view.Window;
-import android.widget.LinearLayout;
-import android.widget.TextView;
-import android.widget.Toast;
-import androidx.constraintlayout.widget.ConstraintLayout;
-import com.rtbishop.look4sat.feature.cw.R;
-import E2.g;
-import H2.a;
-import H2.b;
-import j1.C1646n;
-
-/**
- * Ported verbatim from Morse Expert 1.15 MainActivity (com.ve3nea.morse_expert); obfuscated
- * class/field names kept as-is. Surgery notes: originally extends e.AbstractActivityC1557l
- * (obfuscated AppCompat base) -> now a plain controller class, Activity injected via
- * onCreate(Activity, ConstraintLayout) for Compose AndroidView integration. Ads (d1.*),
- * billing (I2.a), premium/rate menu removed per user. h3.b.r (recursive findViewById),
- * K1.a.M (immersive status bar), B.i (permissions) replaced with equivalent standard APIs.
- * Decoder logic (H2.a audio, H2.b core, pas engine) untouched.
- */
-public class MainActivity {
-
-    public static final /* synthetic */ int f11034K = 0;
-
-    /* renamed from: D, reason: collision with root package name */
-    public C1646n f11035D;
-
-    /* renamed from: E, reason: collision with root package name */
-    public a f11036E;
-
-    /* renamed from: F, reason: collision with root package name */
-    public b f11037F;
-
-    /* renamed from: G, reason: collision with root package name */
-    public long f11038G = 0;
-
-    /* renamed from: J, reason: collision with root package name */
-    public final g f11040J = new g(this, 1);
-
-    /** Injected Activity context (replaces the original this Activity capabilities) */
-    public android.app.Activity mActivity;
-
-    public void onCreate(android.app.Activity activity, ConstraintLayout constraintLayout) {
-        onCreate(activity, constraintLayout, true);
-    }
-
-    /**
-     * applyImmersive=false is used when embedding in a small container (e.g. the transponder CW panel):
-     * does not touch the host window's system-bar flags (avoids affecting the whole Activity).
-     */
-    public void onCreate(android.app.Activity activity, ConstraintLayout constraintLayout, boolean applyImmersive) {
-        this.mActivity = activity;
-        if (applyImmersive) {
-            // K1.a.M(getWindow(), false): immersive status bar (nav/fullscreen flags, ported as-is)
-            setImmersive(activity.getWindow(), false);
-        }
-        View inflate = constraintLayout;
-        int i4 = R.id.decodedTextView;
-        DecodedTextView decodedTextView = (DecodedTextView) findViewRecursive(inflate, R.id.decodedTextView);
-        if (decodedTextView != null) {
-            i4 = R.id.scaleView;
-            ScaleView scaleView = (ScaleView) findViewRecursive(inflate, R.id.scaleView);
-            if (scaleView != null) {
-                i4 = R.id.statusTextView;
-                TextView textView = (TextView) findViewRecursive(inflate, R.id.statusTextView);
-                if (textView != null) {
-                    i4 = R.id.verticalLayout;
-                    LinearLayout linearLayout = (LinearLayout) findViewRecursive(inflate, R.id.verticalLayout);
-                    if (linearLayout != null) {
-                        i4 = R.id.waterfallView;
-                        WaterfallSurfaceView waterfallSurfaceView = (WaterfallSurfaceView) findViewRecursive(inflate, R.id.waterfallView);
-                        if (waterfallSurfaceView != null) {
-                            this.f11035D = new C1646n(constraintLayout, decodedTextView, scaleView, textView, linearLayout, waterfallSurfaceView);
-                            ((WaterfallSurfaceView) this.f11035D.f11892k).setOnTouchListener(this.f11040J);
-                            // Originally: permission check then v(); permission flow handled by the Compose page
-                            // Originally: ad banner mounting (removed)
-                            return;
-                        }
-                    }
-                }
-            }
-        }
-        throw new NullPointerException("Missing required view with ID: " + inflate.getResources().getResourceName(i4));
-    }
-
-    /** Original h3.b.r: recursive findViewById (ported behavior) */
-    private static View findViewRecursive(View view, int id) {
-        if (view instanceof ViewGroup) {
-            ViewGroup viewGroup = (ViewGroup) view;
-            int childCount = viewGroup.getChildCount();
-            for (int i = 0; i < childCount; i++) {
-                View found = viewGroup.getChildAt(i).findViewById(id);
-                if (found != null) {
-                    return found;
-                }
-            }
-            return null;
-        }
-        return null;
-    }
-
-    /** Original K1.a.M(window, false): immersive (hide nav/fullscreen flags, ported as-is) */
-    private static void setImmersive(Window window, boolean immersive) {
-        if (Build.VERSION.SDK_INT >= 30) {
-            window.setDecorFitsSystemWindows(!immersive);
-            if (immersive) {
-                window.getDecorView().setSystemUiVisibility(
-                    View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN);
-            } else {
-                window.getDecorView().setSystemUiVisibility(
-                    View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
-            }
-        } else {
-            View decorView = window.getDecorView();
-            int systemUiVisibility = decorView.getSystemUiVisibility();
-            decorView.setSystemUiVisibility(immersive ? (systemUiVisibility & (-1793)) : (systemUiVisibility | 1792));
-        }
-    }
-
-    /** Original v(): audio capture + decoder core init (logic unchanged) */
-    public void v() {
-        this.f11036E = new a();
-        b bVar = new b(mActivity.getApplicationContext());
-        this.f11037F = bVar;
-        this.f11036E.f601l = bVar;
-        bVar.f619o = (WaterfallSurfaceView) this.f11035D.f11892k;
-        bVar.f620p = this;
-        bVar.f621q = this;
-    }
-
-    /** Original onResume: restore decoding (message type/font/background/record start/waterfall) */
-    public void onResume() {
-        android.content.SharedPreferences prefs = mActivity.getSharedPreferences(
-            mActivity.getPackageName() + "_preferences", Context.MODE_PRIVATE);
-        String messageType = prefs.getString("message_type", "general_text");
-        b bVar = this.f11037F;
-        if (bVar != null) {
-            bVar.f623s.set(messageType.equals("ham_radio_qso"));
-        }
-        ((DecodedTextView) this.f11035D.f11888g).setTextSize(Math.max(7, prefs.getInt("text_font_size", 18)));
-        b bVar2 = this.f11037F;
-        if (bVar2 != null) {
-            bVar2.f617m.b(mActivity);
-            ((DecodedTextView) this.f11035D.f11888g).setBackgroundColor(this.f11037F.f617m.f665a[0]);
-        }
-        a aVar = this.f11036E;
-        if (aVar != null) {
-            android.media.AudioRecord audioRecord = aVar.f596g;
-            audioRecord.startRecording();
-            if (audioRecord.getState() != 1) {
-                android.util.Log.e("AudioRecord", "cannot start");
-            }
-            aVar.f598i.set(true);
-        }
-        ((WaterfallSurfaceView) this.f11035D.f11892k).onResume();
-        // Originally: ad lifecycle (removed)
-    }
-
-    /** Original onPause: stop recording + waterfall pause */
-    public void onPause() {
-        a aVar = this.f11036E;
-        if (aVar != null) {
-            aVar.f598i.set(false);
-            android.media.AudioRecord audioRecord = aVar.f596g;
-            audioRecord.stop();
-            if (audioRecord.getState() != 1) {
-                android.util.Log.e("AudioRecord", "cannot stop");
-            }
-        }
-        ((WaterfallSurfaceView) this.f11035D.f11892k).onPause();
-    }
-
-    /** Original onDestroy: release audio/decoder (billing cleanup removed) */
-    public void onDestroy() {
-        a aVar = this.f11036E;
-        if (aVar != null) {
-            aVar.f598i.set(false);
-            try {
-                aVar.f596g.stop();
-                aVar.f596g.release();
-            } catch (Exception ignored) {
-            }
-            aVar.f597h.shutdownNow();
-        }
-        this.f11036E = null;
-        this.f11037F = null;
-    }
-
-    /** Menu: clear decoded text (original clear_mnu) */
-    public void clearDecoded() {
-        ((DecodedTextView) this.f11035D.f11888g).setText("");
-    }
-
-    /** Menu: pause/resume decoding (original pause_mnu, red/white icon toggle logic) */
-    public boolean togglePause() {
-        java.util.concurrent.atomic.AtomicBoolean atomicBoolean = ((DecodedTextView) this.f11035D.f11888g).f11033o;
-        atomicBoolean.set(!atomicBoolean.get());
-        return atomicBoolean.get();
-    }
-
-    /** Menu: save text (original save_mnu -> DecodedTextView.r()) */
-    public void saveText() {
-        ((DecodedTextView) this.f11035D.f11888g).r();
-    }
-
-    /** Menu: record signals (original record_signals_mnu) */
-    public void recordSignals() {
-        this.f11037F.f626v.set(true);
-    }
-
-    /** Original tap_back_again_to_close hint */
-    public boolean handleBackPress() {
-        if (System.currentTimeMillis() < this.f11038G + 2000) {
-            return true; // double-back: exit
-        }
-        this.f11038G = System.currentTimeMillis();
-        Toast.makeText(mActivity, R.string.tap_back_again_to_close, 0).show();
-        return false;
-    }
-
-    /** Start decoding after permission granted (original onRequestPermissionsResult success) */
-    public void onPermissionGranted() {
-        v();
-    }
-}

feature/cw/src/main/java/com/ve3nea/morse_expert/ScaleView.java

@@ -1,76 +0,0 @@
-package com.ve3nea.morse_expert;
-
-import android.content.Context;
-import android.graphics.Canvas;
-import android.graphics.Paint;
-import android.graphics.Path;
-import android.util.AttributeSet;
-import android.view.View;
-
-/* loaded from: classes.dex */
-public class ScaleView extends View {
-    public int f;
-
-    /* renamed from: g, reason: collision with root package name */
-    public int f11041g;
-
-    /* renamed from: h, reason: collision with root package name */
-    public final Paint f11042h;
-
-    /* renamed from: i, reason: collision with root package name */
-    public final Paint f11043i;
-
-    /* renamed from: j, reason: collision with root package name */
-    public final Paint f11044j;
-
-    /* renamed from: k, reason: collision with root package name */
-    public final Paint f11045k;
-
-    public ScaleView(Context context, AttributeSet attributeSet) {
-        super(context, attributeSet);
-        Paint paint = new Paint();
-        this.f11042h = paint;
-        paint.setColor(-16711936);
-        Paint paint2 = new Paint();
-        this.f11043i = paint2;
-        paint2.setColor(-16744448);
-        Paint paint3 = new Paint();
-        this.f11044j = paint3;
-        paint3.setColor(-256);
-        Paint paint4 = new Paint();
-        this.f11045k = paint4;
-        paint4.setColor(-8355840);
-    }
-
-    @Override // android.view.View
-    public final void onDraw(Canvas canvas) {
-        Paint paint;
-        super.onDraw(canvas);
-        int i4 = this.f11041g;
-        if (i4 != 1) {
-            if (i4 != 2) {
-                if (i4 != 3) {
-                    if (i4 != 4) {
-                        return;
-                    } else {
-                        paint = this.f11044j;
-                    }
-                } else {
-                    paint = this.f11045k;
-                }
-            } else {
-                paint = this.f11042h;
-            }
-        } else {
-            paint = this.f11043i;
-        }
-        int round = (int) Math.round(getWidth() * 0.7d);
-        Path path = new Path();
-        path.moveTo(0.0f, this.f);
-        float f = round;
-        path.lineTo(f, this.f - round);
-        path.lineTo(f, this.f + round);
-        path.close();
-        canvas.drawPath(path, paint);
-    }
-}

feature/cw/src/main/java/com/ve3nea/morse_expert/WaterfallSurfaceView.java

@@ -1,19 +0,0 @@
-package com.ve3nea.morse_expert;
-
-import J2.b;
-import android.content.Context;
-import android.opengl.GLSurfaceView;
-import android.util.AttributeSet;
-
-/* loaded from: classes.dex */
-public class WaterfallSurfaceView extends GLSurfaceView {
-    public final b f;
-
-    public WaterfallSurfaceView(Context context, AttributeSet attributeSet) {
-        super(context, attributeSet);
-        setEGLContextClientVersion(2);
-        b bVar = new b(context, H2.b.f603B);
-        this.f = bVar;
-        setRenderer(bVar);
-    }
-}

feature/cw/src/main/java/d1/AbstractC1518b.java

@@ -1,82 +0,0 @@
-package d1;
-
-/* renamed from: d1.b, reason: case insensitive filesystem */
-/* Ported from Morse Expert 1.15; obfuscated names kept. b(Parcel)/c(y2.d) were library utilities, trimmed (L1/y2 library deps). */
-public abstract /* synthetic */ class AbstractC1518b {
-    public static float a(float f, float f4, k3.d dVar, long j4, float f5, float f6) {
-        dVar.c(j4, f - f4);
-        return f5 + f6;
-    }
-
-    public static String d(String str, int i4) {
-        return str + i4;
-    }
-
-    public static String e(String str, String str2) {
-        return str + str2;
-    }
-
-    public static String f(String str, String str2, String str3) {
-        return str + str2 + str3;
-    }
-
-    public static String g(StringBuilder sb, int i4, String str) {
-        sb.append(i4);
-        sb.append(str);
-        return sb.toString();
-    }
-
-    public static String h(StringBuilder sb, String str, String str2) {
-        sb.append(str);
-        sb.append(str2);
-        return sb.toString();
-    }
-
-    public static /* synthetic */ boolean i(Object obj) {
-        return obj != null;
-    }
-
-    public static float j(float f, float f4, k3.d dVar, long j4, float f5, float f6) {
-        dVar.c(j4, f + f4);
-        return f5 + f6;
-    }
-
-    public static String k(String str, String str2) {
-        return str + str2;
-    }
-
-    public static float l(float f, float f4, k3.d dVar, long j4, float f5, float f6) {
-        dVar.c(j4, f - f4);
-        return f5 - f6;
-    }
-
-    public static float m(float f, float f4, k3.d dVar, long j4, float f5, float f6) {
-        dVar.c(j4, f + f4);
-        return f5 - f6;
-    }
-
-    public static /* synthetic */ String n(int i4) {
-        switch (i4) {
-            case 1:
-                return "NONE";
-            case 2:
-                return "LEFT";
-            case 3:
-                return "TOP";
-            case 4:
-                return "RIGHT";
-            case 5:
-                return "BOTTOM";
-            case 6:
-                return "BASELINE";
-            case 7:
-                return "CENTER";
-            case 8:
-                return "CENTER_X";
-            case 9:
-                return "CENTER_Y";
-            default:
-                throw null;
-        }
-    }
-}

feature/cw/src/main/java/g3/a.java

@@ -1,34 +0,0 @@
-package g3;
-
-/* loaded from: classes.dex */
-public final class a {
-
-    /* renamed from: a, reason: collision with root package name */
-    public final int f11582a;
-
-    /* renamed from: b, reason: collision with root package name */
-    public final double f11583b;
-    public final double c;
-
-    public a(double d4) {
-        int i4 = (int) (0.6366197723675814d * d4);
-        while (true) {
-            double d5 = -i4;
-            double d6 = 1.570796251296997d * d5;
-            double d7 = d4 + d6;
-            double d8 = 7.549789948768648E-8d * d5;
-            double d9 = d8 + d7;
-            double d10 = (-((d7 - d4) - d6)) + (-((d9 - d7) - d8));
-            double d11 = d5 * 6.123233995736766E-17d;
-            double d12 = d11 + d9;
-            double d13 = d10 + (-((d12 - d9) - d11));
-            if (d12 > 0.0d) {
-                this.f11582a = i4;
-                this.f11583b = d12;
-                this.c = d13;
-                return;
-            }
-            i4--;
-        }
-    }
-}

feature/cw/src/main/java/g3/b.java

@@ -1,8 +0,0 @@
-package g3;
-
-/* loaded from: classes.dex */
-public abstract class b {
-
-    /* renamed from: a, reason: collision with root package name */
-    public static final double[][] f11584a = (double[][]) d.f11591a.clone();
-}

feature/cw/src/main/java/g3/c.java

@@ -1,507 +0,0 @@
-package g3;
-
-/* loaded from: classes.dex */
-public abstract class c {
-
-    /* renamed from: a, reason: collision with root package name */
-    public static final double[][] f11585a;
-
-    /* renamed from: b, reason: collision with root package name */
-    public static final double[] f11586b;
-    public static final double[] c;
-
-    /* renamed from: d, reason: collision with root package name */
-    public static final double[] f11587d;
-
-    /* renamed from: e, reason: collision with root package name */
-    public static final double[] f11588e;
-    public static final long[] f;
-
-    /* renamed from: g, reason: collision with root package name */
-    public static final long[] f11589g;
-
-    /* renamed from: h, reason: collision with root package name */
-    public static final double[] f11590h;
-
-    static {
-        StrictMath.log(Double.MAX_VALUE);
-        f11585a = new double[][]{new double[]{1.0d, 5.669184079525E-24d}, new double[]{-0.25d, -0.25d}, new double[]{0.3333333134651184d, 1.986821492305628E-8d}, new double[]{-0.25d, -6.663542893624021E-14d}, new double[]{0.19999998807907104d, 1.1921056801463227E-8d}, new double[]{-0.1666666567325592d, -7.800414592973399E-9d}, new double[]{0.1428571343421936d, 5.650007086920087E-9d}, new double[]{-0.12502530217170715d, -7.44321345601866E-11d}, new double[]{0.11113807559013367d, 9.219544613762692E-9d}};
-        f11586b = new double[]{0.0d, 0.1246747374534607d, 0.24740394949913025d, 0.366272509098053d, 0.4794255495071411d, 0.5850973129272461d, 0.6816387176513672d, 0.7675435543060303d, 0.8414709568023682d, 0.902267575263977d, 0.9489846229553223d, 0.9808930158615112d, 0.9974949359893799d, 0.9985313415527344d};
-        c = new double[]{0.0d, -4.068233003401932E-9d, 9.755392680573412E-9d, 1.9987994582857286E-8d, -1.0902938113007961E-8d, -3.9986783938944604E-8d, 4.23719669792332E-8d, -5.207000323380292E-8d, 2.800552834259E-8d, 1.883511811213715E-8d, -3.5997360512765566E-9d, 4.116164446561962E-8d, 5.0614674548127384E-8d, -1.0129027912496858E-9d};
-        f11587d = new double[]{1.0d, 0.9921976327896118d, 0.9689123630523682d, 0.9305076599121094d, 0.8775825500488281d, 0.8109631538391113d, 0.7316888570785522d, 0.6409968137741089d, 0.5403022766113281d, 0.4311765432357788d, 0.3153223395347595d, 0.19454771280288696d, 0.07073719799518585d, -0.05417713522911072d};
-        f11588e = new double[]{0.0d, 3.4439717236742845E-8d, 5.865827662008209E-8d, -3.7999795083850525E-8d, 1.184154459111628E-8d, -3.43338934259355E-8d, 1.1795268640216787E-8d, 4.438921624363781E-8d, 2.925681159240093E-8d, -2.6437112632041807E-8d, 2.2860509143963117E-8d, -4.813899778443457E-9d, 3.6725170580355583E-9d, 2.0217439756338078E-10d};
-        f = new long[]{2935890503282001226L, 9154082963658192752L, 3952090531849364496L, 9193070505571053912L, 7910884519577875640L, 113236205062349959L, 4577762542105553359L, -5034868814120038111L, 4208363204685324176L, 5648769086999809661L, 2819561105158720014L, -4035746434778044925L, -302932621132653753L, -2644281811660520851L, -3183605296591799669L, 6722166367014452318L, -3512299194304650054L, -7278142539171889152L};
-        f11589g = new long[]{-3958705157555305932L, -4267615245585081135L};
-        f11590h = new double[]{0.0d, 0.125d, 0.25d, 0.375d, 0.5d, 0.625d, 0.75d, 0.875d, 1.0d, 1.125d, 1.25d, 1.375d, 1.5d, 1.625d};
-    }
-
-    public static double a(double d4) {
-        double d5;
-        if (d4 != d4) {
-            return d4;
-        }
-        if (d4 == d4 && d4 < 4.503599627370496E15d && d4 > -4.503599627370496E15d) {
-            long j4 = (long) d4;
-            if (d4 < 0.0d && j4 != d4) {
-                j4--;
-            }
-            if (j4 == 0) {
-                d5 = j4 * d4;
-            } else {
-                d5 = j4;
-            }
-        } else {
-            d5 = d4;
-        }
-        if (d5 == d4) {
-            return d5;
-        }
-        double d6 = d5 + 1.0d;
-        if (d6 == 0.0d) {
-            return d4 * d6;
-        }
-        return d6;
-    }
-
-    public static double b(double d4) {
-        double g4;
-        double d5 = 0.0d;
-        if (d4 < 0.0d) {
-            d4 = -d4;
-        }
-        if (d4 != d4 || d4 == Double.POSITIVE_INFINITY) {
-            return Double.NaN;
-        }
-        int i4 = 0;
-        if (d4 > 3294198.0d) {
-            double[] dArr = new double[3];
-            e(d4, dArr);
-            i4 = ((int) dArr[0]) & 3;
-            d4 = dArr[1];
-            d5 = dArr[2];
-        } else if (d4 > 1.5707963267948966d) {
-            a aVar = new a(d4);
-            i4 = aVar.f11582a & 3;
-            d4 = aVar.f11583b;
-            d5 = aVar.c;
-        }
-        if (i4 != 0) {
-            if (i4 != 1) {
-                if (i4 != 2) {
-                    if (i4 != 3) {
-                        return Double.NaN;
-                    }
-                    return g(d4, d5);
-                }
-                g4 = c(d4, d5);
-            } else {
-                g4 = g(d4, d5);
-            }
-            return -g4;
-        }
-        return c(d4, d5);
-    }
-
-    public static double c(double d4, double d5) {
-        double d6 = 1.5707963267948966d - d4;
-        return g(d6, (6.123233995736766E-17d - d5) + (-((d6 - 1.5707963267948966d) + d4)));
-    }
-
-    public static double d(double d4) {
-        if (d4 != 0.0d) {
-            long doubleToRawLongBits = Double.doubleToRawLongBits(d4);
-            if (((Long.MIN_VALUE & doubleToRawLongBits) != 0 || d4 != d4) && d4 != 0.0d) {
-                return Double.NaN;
-            }
-            if (d4 == Double.POSITIVE_INFINITY) {
-                return Double.POSITIVE_INFINITY;
-            }
-            int i4 = ((int) (doubleToRawLongBits >> 52)) - 1023;
-            if ((9218868437227405312L & doubleToRawLongBits) == 0) {
-                if (d4 == 0.0d) {
-                    return Double.NEGATIVE_INFINITY;
-                }
-                doubleToRawLongBits <<= 1;
-                while ((4503599627370496L & doubleToRawLongBits) == 0) {
-                    i4--;
-                    doubleToRawLongBits <<= 1;
-                }
-            }
-            if ((i4 == -1 || i4 == 0) && d4 < 1.01d && d4 > 0.99d) {
-                double d5 = d4 - 1.0d;
-                double d6 = d5 * 1.073741824E9d;
-                double d7 = (d5 + d6) - d6;
-                double d8 = d5 - d7;
-                double[][] dArr = f11585a;
-                double[] dArr2 = dArr[dArr.length - 1];
-                double d9 = dArr2[0];
-                double d10 = dArr2[1];
-                for (int length = dArr.length - 2; length >= 0; length--) {
-                    double d11 = d9 * d7;
-                    double d12 = (d10 * d8) + (d10 * d7) + (d9 * d8);
-                    double d13 = d11 * 1.073741824E9d;
-                    double d14 = (d11 + d13) - d13;
-                    double d15 = (d11 - d14) + d12;
-                    double[] dArr3 = dArr[length];
-                    double d16 = d14 + dArr3[0];
-                    double d17 = d15 + dArr3[1];
-                    double d18 = d16 * 1.073741824E9d;
-                    d9 = (d16 + d18) - d18;
-                    d10 = (d16 - d9) + d17;
-                }
-                double d19 = d9 * d7;
-                double d20 = (d10 * d8) + (d7 * d10) + (d9 * d8);
-                double d21 = 1.073741824E9d * d19;
-                double d22 = (d19 + d21) - d21;
-                return (d19 - d22) + d20 + d22;
-            }
-            long j4 = 4499201580859392L & doubleToRawLongBits;
-            double[] dArr4 = b.f11584a[(int) (j4 >> 42)];
-            double d23 = (doubleToRawLongBits & 4398046511103L) / (j4 + 4.503599627370496E15d);
-            double d24 = (((((((((((-0.16624882440418567d) * d23) + 0.19999954120254515d) * d23) - 0.2499999997677497d) * d23) + 0.3333333333332802d) * d23) - 0.5d) * d23) + 1.0d) * d23;
-            double d25 = i4;
-            double d26 = 0.6931470632553101d * d25;
-            double d27 = dArr4[0];
-            double d28 = d26 + d27;
-            double d29 = (-((d28 - d26) - d27)) + 0.0d;
-            double d30 = d28 + d24;
-            double d31 = d29 + (-((d30 - d28) - d24));
-            double d32 = d25 * 1.1730463525082348E-7d;
-            double d33 = d30 + d32;
-            double d34 = d31 + (-((d33 - d30) - d32));
-            double d35 = dArr4[1];
-            double d36 = d33 + d35;
-            double d37 = d36 + 0.0d;
-            return d34 + (-((d36 - d33) - d35)) + (-((d37 - d36) - 0.0d)) + d37;
-        }
-        return Double.NEGATIVE_INFINITY;
-    }
-
-    public static void e(double d4, double[] dArr) {
-        long j4;
-        long j5;
-        long j6;
-        boolean z3;
-        boolean z4;
-        boolean z5;
-        boolean z6;
-        boolean z7;
-        boolean z8;
-        boolean z9;
-        boolean z10;
-        boolean z11;
-        boolean z12;
-        boolean z13;
-        boolean z14;
-        boolean z15;
-        boolean z16;
-        boolean z17;
-        boolean z18;
-        boolean z19;
-        boolean z20;
-        boolean z21;
-        boolean z22;
-        boolean z23;
-        long j7;
-        long doubleToRawLongBits = Double.doubleToRawLongBits(d4);
-        int i4 = ((int) ((doubleToRawLongBits >> 52) & 2047)) - 1022;
-        long j8 = ((doubleToRawLongBits & 4503599627370495L) | 4503599627370496L) << 11;
-        int i5 = i4 >> 6;
-        int i6 = i4 - (i5 << 6);
-        long[] jArr = f;
-        if (i6 != 0) {
-            if (i5 == 0) {
-                j7 = 0;
-            } else {
-                j7 = jArr[i5 - 1] << i6;
-            }
-            long j9 = jArr[i5];
-            int i7 = 64 - i6;
-            j4 = j7 | (j9 >>> i7);
-            long j10 = jArr[i5 + 1];
-            j5 = (j9 << i6) | (j10 >>> i7);
-            j6 = (jArr[i5 + 2] >>> i7) | (j10 << i6);
-        } else {
-            if (i5 == 0) {
-                j4 = 0;
-            } else {
-                j4 = jArr[i5 - 1];
-            }
-            j5 = jArr[i5];
-            j6 = jArr[i5 + 1];
-        }
-        long j11 = j8 >>> 32;
-        long j12 = j8 & 4294967295L;
-        long j13 = j5 >>> 32;
-        long j14 = j5 & 4294967295L;
-        long j15 = j11 * j13;
-        long j16 = j12 * j14;
-        long j17 = j13 * j12;
-        long j18 = j14 * j11;
-        long j19 = j16 + (j18 << 32);
-        long j20 = j15 + (j18 >>> 32);
-        if ((j16 & Long.MIN_VALUE) != 0) {
-            z3 = true;
-        } else {
-            z3 = false;
-        }
-        if ((j18 & 2147483648L) != 0) {
-            z4 = true;
-        } else {
-            z4 = false;
-        }
-        long j21 = j19 & Long.MIN_VALUE;
-        if (j21 != 0) {
-            z5 = true;
-        } else {
-            z5 = false;
-        }
-        if ((z3 && z4) || ((z3 || z4) && !z5)) {
-            j20++;
-        }
-        if (j21 != 0) {
-            z6 = true;
-        } else {
-            z6 = false;
-        }
-        if ((j17 & 2147483648L) != 0) {
-            z7 = true;
-        } else {
-            z7 = false;
-        }
-        long j22 = j19 + (j17 << 32);
-        long j23 = j20 + (j17 >>> 32);
-        long j24 = j22 & Long.MIN_VALUE;
-        if (j24 != 0) {
-            z8 = true;
-        } else {
-            z8 = false;
-        }
-        if ((z6 && z7) || ((z6 || z7) && !z8)) {
-            j23++;
-        }
-        long j25 = j6 >>> 32;
-        long j26 = (j11 * j25) + ((((j6 & 4294967295L) * j11) + (j25 * j12)) >>> 32);
-        if (j24 != 0) {
-            z9 = true;
-        } else {
-            z9 = false;
-        }
-        if ((j26 & Long.MIN_VALUE) != 0) {
-            z10 = true;
-        } else {
-            z10 = false;
-        }
-        long j27 = j22 + j26;
-        if ((j27 & Long.MIN_VALUE) != 0) {
-            z11 = true;
-        } else {
-            z11 = false;
-        }
-        if ((z9 && z10) || ((z9 || z10) && !z11)) {
-            j23++;
-        }
-        long j28 = j4 >>> 32;
-        long j29 = j4 & 4294967295L;
-        long j30 = (j12 * j29) + (((j11 * j29) + (j12 * j28)) << 32) + j23;
-        int i8 = (int) (j30 >>> 62);
-        long j31 = (j27 >>> 62) | (j30 << 2);
-        long j32 = j27 << 2;
-        long j33 = j31 >>> 32;
-        long j34 = j31 & 4294967295L;
-        long[] jArr2 = f11589g;
-        long j35 = jArr2[0];
-        long j36 = j35 >>> 32;
-        long j37 = j35 & 4294967295L;
-        long j38 = j34 * j37;
-        long j39 = j34 * j36;
-        long j40 = j33 * j37;
-        long j41 = j38 + (j40 << 32);
-        long j42 = (j33 * j36) + (j40 >>> 32);
-        if ((j38 & Long.MIN_VALUE) != 0) {
-            z12 = true;
-        } else {
-            z12 = false;
-        }
-        if ((j40 & 2147483648L) != 0) {
-            z13 = true;
-        } else {
-            z13 = false;
-        }
-        long j43 = j41 & Long.MIN_VALUE;
-        if (j43 != 0) {
-            z14 = true;
-        } else {
-            z14 = false;
-        }
-        if ((z12 && z13) || ((z12 || z13) && !z14)) {
-            j42++;
-        }
-        if (j43 != 0) {
-            z15 = true;
-        } else {
-            z15 = false;
-        }
-        if ((j39 & 2147483648L) != 0) {
-            z16 = true;
-        } else {
-            z16 = false;
-        }
-        long j44 = j41 + (j39 << 32);
-        long j45 = j42 + (j39 >>> 32);
-        long j46 = j44 & Long.MIN_VALUE;
-        if (j46 != 0) {
-            z17 = true;
-        } else {
-            z17 = false;
-        }
-        if ((z15 && z16) || ((z15 || z16) && !z17)) {
-            j45++;
-        }
-        long j47 = jArr2[1];
-        long j48 = j47 >>> 32;
-        long j49 = (j33 * j48) + (((j33 * (j47 & 4294967295L)) + (j34 * j48)) >>> 32);
-        if (j46 != 0) {
-            z18 = true;
-        } else {
-            z18 = false;
-        }
-        if ((j49 & Long.MIN_VALUE) != 0) {
-            z19 = true;
-        } else {
-            z19 = false;
-        }
-        long j50 = j44 + j49;
-        long j51 = j50 & Long.MIN_VALUE;
-        if (j51 != 0) {
-            z20 = true;
-        } else {
-            z20 = false;
-        }
-        if ((z18 && z19) || ((z18 || z19) && !z20)) {
-            j45++;
-        }
-        long j52 = j32 >>> 32;
-        long j53 = (j52 * j36) + (((j52 * j37) + ((j32 & 4294967295L) * j36)) >>> 32);
-        if (j51 != 0) {
-            z21 = true;
-        } else {
-            z21 = false;
-        }
-        if ((j53 & Long.MIN_VALUE) != 0) {
-            z22 = true;
-        } else {
-            z22 = false;
-        }
-        if (((j50 + j53) & Long.MIN_VALUE) != 0) {
-            z23 = true;
-        } else {
-            z23 = false;
-        }
-        if ((z21 && z22) || ((z21 || z22) && !z23)) {
-            j45++;
-        }
-        double d5 = (j45 >>> 12) / 4.503599627370496E15d;
-        double d6 = ((((j45 & 4095) << 40) + (f11589g[0] >>> 24)) / 4.503599627370496E15d) / 4.503599627370496E15d;  // r34 = f11589g[0](smali: aget-wide v5, v2)
-        double d7 = d5 + d6;
-        dArr[0] = i8;
-        dArr[1] = d7 * 2.0d;
-        dArr[2] = (-((d7 - d5) - d6)) * 2.0d;
-    }
-
-    /* JADX WARN: Removed duplicated region for block: B:20:0x005f  */
-    /* JADX WARN: Removed duplicated region for block: B:22:0x0063  */
-    /* JADX WARN: Removed duplicated region for block: B:32:0x007a  */
-    /*
-        Code decompiled incorrectly, please refer to instructions dump.
-    */
-    public static double f(double d4) {
-        boolean z3;
-        double d5;
-        double d6;
-        double g4;
-        int i4 = 0;
-        double d7 = 0.0d;
-        if (d4 < 0.0d) {
-            d5 = -d4;
-            z3 = true;
-        } else {
-            z3 = false;
-            d5 = d4;
-        }
-        if (d5 == 0.0d) {
-            if (Double.doubleToRawLongBits(d4) >= 0) {
-                return 0.0d;
-            }
-            return -0.0d;
-        }
-        if (d5 != d5 || d5 == Double.POSITIVE_INFINITY) {
-            return Double.NaN;
-        }
-        if (d5 > 3294198.0d) {
-            double[] dArr = new double[3];
-            e(d5, dArr);
-            i4 = ((int) dArr[0]) & 3;
-            d5 = dArr[1];
-            d6 = dArr[2];
-        } else {
-            if (d5 > 1.5707963267948966d) {
-                a aVar = new a(d5);
-                int i5 = aVar.f11582a & 3;
-                d5 = aVar.f11583b;
-                d6 = aVar.c;
-                i4 = i5;
-            }
-            if (z3) {
-                i4 ^= 2;
-            }
-            // smali-verified: f() = sin (quadrant switch!):
-            //   case 0 -> g(d5,0)(sin(0-π/2))
-            //   case 1 -> c(d5,0) (sin(pi/2-pi) = cos of the complement)
-            //   case 2 -> -g(d5,0) (sin(pi-3pi/2) = -sin of the complement)
-            //   case 3 -> -c(d5,0) (sin(3pi/2-2pi) = -cos of the complement)
-            // jadx's malformed nested if reconstructed case 0 as return NaN (all small angles NaN!),
-            // and routed cases 1/2/3 all through g() - root cause of 329 NaNs in the twiddle table and the scrambled spectrum!
-            if (i4 == 0) {
-                return g(d5, d7);
-            }
-            if (i4 == 1) {
-                return c(d5, d7);
-            }
-            if (i4 == 2) {
-                return -g(d5, d7);
-            }
-            return -c(d5, d7);
-        }
-        d7 = d6;
-        // jadx's reconstruction is incomplete (650 smali lines vs 63 reconstructed); f() is dead code called by nothing,
-        // return restored per smali tail semantics (cond_0: v22 = v22 + v14; return v22)
-        return d7;
-    }
-
-    public static double g(double d4, double d5) {
-        int i4 = (int) ((8.0d * d4) + 0.5d);
-        double d6 = d4 - f11590h[i4];
-        double d7 = f11586b[i4];
-        double d8 = c[i4];
-        double d9 = f11587d[i4];
-        double d10 = f11588e[i4];
-        double d11 = d6 * d6;
-        double d12 = ((((((2.7553817452272217E-6d * d11) - 1.9841269659586505E-4d) * d11) + 0.008333333333329196d) * d11) - 0.16666666666666666d) * d11 * d6;
-        double d13 = ((((((2.479773539153719E-5d * d11) - 0.0013888888689039883d) * d11) + 0.041666666666621166d) * d11) - 0.49999999999999994d) * d11;
-        double d14 = 1.073741824E9d * d6;
-        double d15 = (d6 + d14) - d14;
-        double d16 = (d6 - d15) + d12;
-        double d17 = d7 + 0.0d;
-        double d18 = d9 * d15;
-        double d19 = d17 + d18;
-        double d20 = (d10 * d16) + (d8 * d13) + (d10 * d15) + (d9 * d16) + (d7 * d13) + (-((d17 - 0.0d) - d7)) + 0.0d + (-((d19 - d17) - d18)) + d8;
-        if (d5 != 0.0d) {
-            double d21 = (((d13 + 1.0d) * (d9 + d10)) - ((d15 + d16) * (d7 + d8))) * d5;
-            double d22 = d19 + d21;
-            d20 += -((d22 - d19) - d21);
-            d19 = d22;
-        }
-        return d19 + d20;
-    }
-}

feature/cw/src/main/java/g3/d.java

@@ -1,9 +0,0 @@
-package g3;
-
-/* loaded from: classes.dex */
-public abstract class d {
-
-    /* renamed from: a, reason: collision with root package name */
-    public static final double[][] f11591a = {new double[]{0.0d, 0.0d}, new double[]{9.760860120877624E-4d, -3.903230345984362E-11d}, new double[]{0.0019512202125042677d, -8.124251825289188E-11d}, new double[]{0.0029254043474793434d, -1.8374207360194882E-11d}, new double[]{0.0038986406289041042d, -2.1324678121885073E-10d}, new double[]{0.004870930686593056d, -4.5199654318611534E-10d}, new double[]{0.00584227591753006d, -2.933016992001806E-10d}, new double[]{0.006812678650021553d, -2.325147219074669E-10d}, new double[]{0.007782140746712685d, -3.046577356838847E-10d}, new double[]{0.008750664070248604d, -5.500631513861575E-10d}, new double[]{0.00971824862062931d, 8.48292035519895E-10d}, new double[]{0.010684899985790253d, 1.1422610134013436E-10d}, new double[]{0.01165061630308628d, 9.168889933128375E-10d}, new double[]{0.012615403160452843d, -5.303786078838E-10d}, new double[]{0.013579258695244789d, -5.688639355498786E-10d}, new double[]{0.01454218477010727d, 7.296670293275653E-10d}, new double[]{0.015504186972975731d, -4.370104767451421E-10d}, new double[]{0.016465261578559875d, 1.43695591408832E-9d}, new double[]{0.01742541790008545d, -1.1862263158849434E-9d}, new double[]{0.018384650349617004d, -9.482976524690715E-10d}, new double[]{0.01934296265244484d, 1.9068609515836638E-10d}, new double[]{0.020300358533859253d, 2.655990315697216E-10d}, new double[]{0.021256837993860245d, 1.0315548713040775E-9d}, new double[]{0.022212404757738113d, 5.13345647019085E-10d}, new double[]{0.02316705882549286d, 4.5604151934208014E-10d}, new double[]{0.02412080392241478d, -1.1255706987475148E-9d}, new double[]{0.025073636323213577d, 1.2289023836765196E-9d}, new double[]{0.02602556347846985d, 1.7990281828096504E-9d}, new double[]{0.026976589113473892d, -1.4152718164638451E-9d}, new double[]{0.02792670577764511d, 7.568772963781632E-10d}, new double[]{0.0288759246468544d, -1.1449998592111558E-9d}, new double[]{0.029824241995811462d, -1.6850976862319495E-9d}, new double[]{0.030771657824516296d, 8.422373919843096E-10d}, new double[]{0.0317181795835495d, 6.872350402175489E-10d}, new double[]{0.03266380727291107d, -4.541194749189272E-10d}, new double[]{0.03360854089260101d, -8.9064764856495E-10d}, new double[]{0.034552380442619324d, 1.0640404096769032E-9d}, new double[]{0.0354953333735466d, -3.5901655945224663E-10d}, new double[]{0.03643739968538284d, -3.4829517943661266E-9d}, new double[]{0.037378571927547455d, 8.149473794244232E-10d}, new double[]{0.03831886500120163d, -6.990650304449166E-10d}, new double[]{0.03925827145576477d, 1.0883076226453258E-9d}, new double[]{0.040196798741817474d, 3.845192807999274E-10d}, new double[]{0.04113444685935974d, -1.1570594692045927E-9d}, new double[]{0.04207121580839157d, -1.8877045166697178E-9d}, new double[]{0.043007105588912964d, -1.6332083257987747E-10d}, new double[]{0.04394212365150452d, -1.7950057534514933E-9d}, new double[]{0.04487626254558563d, 2.302710041648838E-9d}, new double[]{0.045809537172317505d, -1.1410233017161343E-9d}, new double[]{0.04674194008111954d, -3.0498741599744685E-9d}, new double[]{0.04767347127199173d, -1.8026348269183678E-9d}, new double[]{0.04860413819551468d, -3.233204600453039E-9d}, new double[]{0.04953393340110779d, 1.7211688427961583E-9d}, new double[]{0.05046287178993225d, -2.329967807055457E-10d}, new double[]{0.05139094591140747d, -4.191810118556531E-11d}, new double[]{0.052318163216114044d, -3.5574324788328143E-9d}, new double[]{0.053244516253471375d, -1.7346590916458485E-9d}, new double[]{0.05417001247406006d, -4.343048751383674E-10d}, new double[]{0.055094651877880096d, 1.92909364037955E-9d}, new double[]{0.056018441915512085d, -5.139745677199588E-10d}, new double[]{0.05694137513637543d, 1.2637629975129189E-9d}, new double[]{0.05786345899105072d, 1.3840561112481119E-9d}, new double[]{0.058784693479537964d, 1.414889689612056E-9d}, new double[]{0.05970507860183716d, 2.9199191907666474E-9d}, new double[]{0.0606246218085289d, 7.90594243412116E-12d}, new double[]{0.06154331564903259d, 1.6844747839686189E-9d}, new double[]{0.06246116757392883d, 2.0498074572151747E-9d}, new double[]{0.06337818503379822d, -4.800180493433863E-9d}, new double[]{0.06429435312747955d, -2.4220822960064277E-9d}, new double[]{0.06520968675613403d, -4.179048566709334E-9d}, new double[]{0.06612417101860046d, 6.363872957010456E-9d}, new double[]{0.06703783571720123d, 9.339468680056365E-10d}, new double[]{0.06795066595077515d, -4.04226739708981E-9d}, new double[]{0.0688626617193222d, -7.043545052852817E-9d}, new double[]{0.06977382302284241d, -6.552819560439773E-9d}, new double[]{0.07068414986133575d, -1.0571674860370546E-9d}, new double[]{0.07159365713596344d, -3.948954622015801E-9d}, new double[]{0.07250232994556427d, 1.1776625988228244E-9d}, new double[]{0.07341018319129944d, 9.221072639606492E-10d}, new double[]{0.07431721687316895d, -3.219119568928366E-9d}, new double[]{0.0752234160900116d, 5.147575929018918E-9d}, new double[]{0.07612881064414978d, -2.291749683541979E-9d}, new doubleLine truncated
-    new double[]{0.6813591718673706d, 5.294053246347931E-8d}, new double[]{0.681853175163269d, -1.2220826223585654E-9d}, new double[]{0.6823468208312988d, 5.8377876767612725E-8d}, new double[]{0.6828403472900391d, -6.437492120743254E-9d}, new double[]{0.6833335161209106d, 4.2990710043633113E-8d}, new double[]{0.6838265657424927d, -3.1516131027023284E-8d}, new double[]{0.684319257736206d, 8.70017386744679E-9d}, new double[]{0.6848117113113403d, 4.466959125843237E-8d}, new double[]{0.6853040456771851d, -4.25782656420497E-8d}, new double[]{0.6857960224151611d, -1.4386267593671393E-8d}, new double[]{0.6862877607345581d, 1.0274494061148778E-8d}, new double[]{0.686779260635376d, 3.164186629229597E-8d}, new double[]{0.6872705221176147d, 4.995334552140326E-8d}, new double[]{0.687761664390564d, -5.3763211240398744E-8d}, new double[]{0.6882524490356445d, -4.0852427502515625E-8d}, new double[]{0.688742995262146d, -3.0287143914420064E-8d}, new double[]{0.6892333030700684d, -2.183125937905008E-8d}, new double[]{0.6897233724594116d, -1.524901992178814E-8d}, new double[]{0.6902132034301758d, -1.0305018010328949E-8d}, new double[]{0.6907027959823608d, -6.764191876212205E-9d}, new double[]{0.6911921501159668d, -4.391824838015402E-9d}, new double[]{0.6916812658309937d, -2.9535446262017846E-9d}, new double[]{0.6921701431274414d, -2.2153227096187463E-9d}, new double[]{0.6926587820053101d, -1.943473623641502E-9d}};
-}

feature/cw/src/main/java/i3/a.java

@@ -1,41 +0,0 @@
-package i3;
-
-/* loaded from: classes.dex */
-public final class a implements Runnable {
-    public final /* synthetic */ int f;
-
-    /* renamed from: g, reason: collision with root package name */
-    public final /* synthetic */ int f11686g;
-
-    /* renamed from: h, reason: collision with root package name */
-    public final /* synthetic */ int f11687h;
-
-    /* renamed from: i, reason: collision with root package name */
-    public final /* synthetic */ float[] f11688i;
-
-    /* renamed from: j, reason: collision with root package name */
-    public final /* synthetic */ float[] f11689j;
-
-    /* renamed from: k, reason: collision with root package name */
-    public final /* synthetic */ d f11690k;
-
-    public a(d dVar, int i4, int i5, int i6, float[] fArr, float[] fArr2) {
-        this.f11690k = dVar;
-        this.f = i4;
-        this.f11686g = i5;
-        this.f11687h = i6;
-        this.f11688i = fArr;
-        this.f11689j = fArr2;
-    }
-
-    @Override // java.lang.Runnable
-    public final void run() {
-        int i4 = this.f11686g;
-        int i5 = this.f;
-        if (i5 >= i4) {
-            return;
-        }
-        float f = this.f11689j[this.f11687h + i5];
-        throw null;
-    }
-}

feature/cw/src/main/java/i3/b.java

@@ -1,41 +0,0 @@
-package i3;
-
-/* loaded from: classes.dex */
-public final class b implements Runnable {
-    public final /* synthetic */ long f;
-
-    /* renamed from: g, reason: collision with root package name */
-    public final /* synthetic */ long f11691g;
-
-    /* renamed from: h, reason: collision with root package name */
-    public final /* synthetic */ long f11692h;
-
-    /* renamed from: i, reason: collision with root package name */
-    public final /* synthetic */ k3.d f11693i;
-
-    /* renamed from: j, reason: collision with root package name */
-    public final /* synthetic */ k3.d f11694j;
-
-    /* renamed from: k, reason: collision with root package name */
-    public final /* synthetic */ d f11695k;
-
-    public b(d dVar, long j4, long j5, long j6, k3.d dVar2, k3.d dVar3) {
-        this.f11695k = dVar;
-        this.f = j4;
-        this.f11691g = j5;
-        this.f11692h = j6;
-        this.f11693i = dVar2;
-        this.f11694j = dVar3;
-    }
-
-    @Override // java.lang.Runnable
-    public final void run() {
-        long j4 = this.f11691g;
-        long j5 = this.f;
-        if (j5 >= j4) {
-            return;
-        }
-        this.f11694j.b(this.f11692h + j5);
-        throw null;
-    }
-}

feature/cw/src/main/java/i3/c.java

@@ -1,55 +0,0 @@
-package i3;
-
-import k3.g;
-import k3.s;
-
-/* loaded from: classes.dex */
-public final class c implements Runnable {
-    public final /* synthetic */ int f = 1;
-
-    /* renamed from: g, reason: collision with root package name */
-    public final /* synthetic */ long f11696g;
-
-    /* renamed from: h, reason: collision with root package name */
-    public final /* synthetic */ long f11697h;
-
-    /* renamed from: i, reason: collision with root package name */
-    public final /* synthetic */ g f11698i;
-
-    /* renamed from: j, reason: collision with root package name */
-    public final /* synthetic */ Object f11699j;
-
-    public c(long j4, long j5, s sVar, s sVar2) {
-        this.f11696g = j4;
-        this.f11697h = j5;
-        this.f11698i = sVar;
-        this.f11699j = sVar2;
-    }
-
-    @Override // java.lang.Runnable
-    public final void run() {
-        switch (this.f) {
-            case 0:
-                k3.d dVar = (k3.d) this.f11698i;
-                long j4 = this.f11697h;
-                long j5 = this.f11696g;
-                if (j5 >= j4) {
-                    return;
-                }
-                dVar.b(j5 * 2);
-                throw null;
-            default:
-                for (long j6 = this.f11696g; j6 < this.f11697h; j6++) {
-                    ((s) this.f11698i).c(j6, ((s) this.f11699j).b(j6));
-                }
-                return;
-        }
-    }
-
-    public c(d dVar, long j4, long j5, k3.d dVar2) {
-        this.f11699j = dVar;
-        this.f11696g = j4;
-        this.f11697h = j5;
-        this.f11698i = dVar2;
-    }
-}

feature/cw/src/main/java/j1/C1646n.java

@@ -1,42 +0,0 @@
-package j1;
-
-import android.widget.LinearLayout;
-import android.widget.TextView;
-import androidx.constraintlayout.widget.ConstraintLayout;
-import com.ve3nea.morse_expert.DecodedTextView;
-import com.ve3nea.morse_expert.ScaleView;
-import com.ve3nea.morse_expert.WaterfallSurfaceView;
-
-/**
- * Ported from Morse Expert 1.15 j1.C1646n; obfuscated class/field names kept.
- * R8-merged class surgery: keeps only the view holder (6-arg constructor + 5 View fields);
- * the remaining lines 158-1278 (ads/billing merged methods) were removed wholesale (user: no ad migration).
- */
-public final class C1646n {
-
-    public final /* synthetic */ int f;
-
-    /* renamed from: g, reason: collision with root package name */
-    public Object f11888g;
-
-    /* renamed from: h, reason: collision with root package name */
-    public Object f11889h;
-
-    /* renamed from: i, reason: collision with root package name */
-    public Object f11890i;
-
-    /* renamed from: j, reason: collision with root package name */
-    public Object f11891j;
-
-    /* renamed from: k, reason: collision with root package name */
-    public Object f11892k;
-
-    public C1646n(ConstraintLayout constraintLayout, DecodedTextView decodedTextView, ScaleView scaleView, TextView textView, LinearLayout linearLayout, WaterfallSurfaceView waterfallSurfaceView) {
-        this.f = 1;
-        this.f11888g = decodedTextView;
-        this.f11889h = scaleView;
-        this.f11890i = textView;
-        this.f11891j = linearLayout;
-        this.f11892k = waterfallSurfaceView;
-    }
-}

feature/cw/src/main/java/j3/a.java

@@ -1,100 +0,0 @@
-package j3;
-
-/* loaded from: classes.dex */
-public final class a implements Runnable {
-    public final /* synthetic */ int f;
-
-    /* renamed from: g, reason: collision with root package name */
-    public final /* synthetic */ int f11919g;
-
-    /* renamed from: h, reason: collision with root package name */
-    public final /* synthetic */ int f11920h;
-
-    /* renamed from: i, reason: collision with root package name */
-    public final /* synthetic */ int f11921i;
-
-    /* renamed from: j, reason: collision with root package name */
-    public final /* synthetic */ float[] f11922j;
-
-    /* renamed from: k, reason: collision with root package name */
-    public final /* synthetic */ float[] f11923k;
-
-    /* renamed from: l, reason: collision with root package name */
-    public final /* synthetic */ int f11924l;
-
-    public /* synthetic */ a(int i4, int i5, int i6, int i7, int i8, float[] fArr, float[] fArr2) {
-        this.f = i8;
-        this.f11919g = i4;
-        this.f11920h = i5;
-        this.f11921i = i6;
-        this.f11922j = fArr;
-        this.f11923k = fArr2;
-        this.f11924l = i7;
-    }
-
-    @Override // java.lang.Runnable
-    public final void run() {
-        switch (this.f) {
-            case 0:
-                int i4 = this.f11919g;
-                int i5 = this.f11920h;
-                int i6 = i4 + i5;
-                int i7 = this.f11921i;
-                while (true) {
-                    int i8 = i7;
-                    if (i8 > 512) {
-                        i7 = i8 >> 2;
-                        c.w(i7, i6 - i7, this.f11924l - (i8 >> 3), this.f11922j, this.f11923k);
-                    } else {
-                        int i9 = this.f11924l;
-                        float[] fArr = this.f11923k;
-                        c.u(i8, 1, this.f11922j, i6 - i8, i9, fArr);
-                        int i10 = i4 - i8;
-                        int i11 = 0;
-                        int i12 = i5 - i8;
-                        while (i12 > 0) {
-                            int i13 = i11 + 1;
-                            int i14 = this.f11924l;
-                            float[] fArr2 = this.f11923k;
-                            int i15 = i12;
-                            i11 = i13;
-                            int i16 = this.f11924l;
-                            float[] fArr3 = this.f11923k;
-                            c.u(i8, c.E(i8, i12, i13, this.f11919g, i14, this.f11922j, fArr2), this.f11922j, i10 + i15, i16, fArr3);
-                            i12 = i15 - i8;
-                        }
-                        return;
-                    }
-                }
-            default:
-                int i17 = this.f11919g;
-                int i18 = this.f11920h;
-                int i19 = i17 + i18;
-                int i20 = this.f11921i;
-                int i21 = 1;
-                while (i20 > 512) {
-                    i20 >>= 2;
-                    i21 <<= 2;
-                    c.y(i20, i19 - i20, this.f11924l - i20, this.f11922j, this.f11923k);
-                }
-                int i22 = this.f11924l;
-                float[] fArr4 = this.f11923k;
-                c.u(i20, 0, this.f11922j, i19 - i20, i22, fArr4);
-                int i23 = i21 >> 1;
-                int i24 = i17 - i20;
-                int i25 = i18 - i20;
-                while (i25 > 0) {
-                    int i26 = i23 + 1;
-                    int i27 = this.f11924l;
-                    float[] fArr5 = this.f11923k;
-                    int i28 = i25;
-                    i23 = i26;
-                    int i29 = this.f11924l;
-                    float[] fArr6 = this.f11923k;
-                    c.u(i20, c.E(i20, i25, i26, this.f11919g, i27, this.f11922j, fArr5), this.f11922j, i24 + i28, i29, fArr6);
-                    i25 = i28 - i20;
-                }
-                return;
-        }
-    }
-}

feature/cw/src/main/java/j3/b.java

@@ -1,104 +0,0 @@
-package j3;
-
-import k3.d;
-
-/* loaded from: classes.dex */
-public final class b implements Runnable {
-    public final /* synthetic */ int f;
-
-    /* renamed from: g, reason: collision with root package name */
-    public final /* synthetic */ long f11925g;
-
-    /* renamed from: h, reason: collision with root package name */
-    public final /* synthetic */ long f11926h;
-
-    /* renamed from: i, reason: collision with root package name */
-    public final /* synthetic */ long f11927i;
-
-    /* renamed from: j, reason: collision with root package name */
-    public final /* synthetic */ d f11928j;
-
-    /* renamed from: k, reason: collision with root package name */
-    public final /* synthetic */ d f11929k;
-
-    /* renamed from: l, reason: collision with root package name */
-    public final /* synthetic */ long f11930l;
-
-    public /* synthetic */ b(long j4, long j5, long j6, d dVar, d dVar2, long j7, int i4) {
-        this.f = i4;
-        this.f11925g = j4;
-        this.f11926h = j5;
-        this.f11927i = j6;
-        this.f11928j = dVar;
-        this.f11929k = dVar2;
-        this.f11930l = j7;
-    }
-
-    @Override // java.lang.Runnable
-    public final void run() {
-        switch (this.f) {
-            case 0:
-                long j4 = this.f11925g;
-                long j5 = this.f11926h;
-                long j6 = j4 + j5;
-                long j7 = this.f11927i;
-                while (j7 > 512) {
-                    long j8 = j7 >> 2;
-                    c.x(j8, j6 - j8, this.f11930l - (j7 >> 3), this.f11928j, this.f11929k);
-                    j7 = j8;
-                }
-                c.v(j7, 1L, j6 - j7, this.f11930l, this.f11928j, this.f11929k);
-                long j9 = j4 - j7;
-                long j10 = j5 - j7;
-                long j11 = 0;
-                for (long j12 = 0; j10 > j12; j12 = 0) {
-                    long j13 = j11 + 1;
-                    long j14 = j10;
-                    c.v(j7, c.F(j7, j10, j13, this.f11925g, this.f11930l, this.f11928j, this.f11929k), j9 + j14, this.f11930l, this.f11928j, this.f11929k);
-                    j10 = j14 - j7;
-                    j11 = j13;
-                    j9 = j9;
-                }
-                return;
-            case 1:
-                long j15 = this.f11925g;
-                long j16 = this.f11926h;
-                long j17 = j15 + j16;
-                long j18 = this.f11927i;
-                long j19 = 1;
-                while (j18 > 512) {
-                    long j20 = j18 >> 2;
-                    j19 <<= 2;
-                    c.z(j20, j17 - j20, this.f11930l - j20, this.f11928j, this.f11929k);
-                    j18 = j20;
-                }
-                c.v(j18, 0L, j17 - j18, this.f11930l, this.f11928j, this.f11929k);
-                long j21 = j19 >> 1;
-                long j22 = j15 - j18;
-                long j23 = j16 - j18;
-                while (j23 > 0) {
-                    long j24 = j21 + 1;
-                    long j25 = j23;
-                    j21 = j24;
-                    c.v(j18, c.F(j18, j23, j24, this.f11925g, this.f11930l, this.f11928j, this.f11929k), j22 + j25, this.f11930l, this.f11928j, this.f11929k);
-                    j23 = j25 - j18;
-                }
-                return;
-            default:
-                for (long j26 = this.f11925g; j26 < this.f11926h; j26++) {
-                    this.f11928j.c(this.f11927i + j26, this.f11929k.b(this.f11930l + j26));
-                }
-                return;
-        }
-    }
-
-    public b(long j4, long j5, long j6, long j7, d dVar, d dVar2) {
-        this.f = 2;
-        this.f11925g = j4;
-        this.f11926h = j5;
-        this.f11928j = dVar;
-        this.f11927i = j6;
-        this.f11929k = dVar2;
-        this.f11930l = j7;
-    }
-}

feature/cw/src/main/java/k3/a.java

@@ -1,11 +0,0 @@
-package k3;
-
-import java.lang.Thread;
-
-/* loaded from: classes.dex */
-public final class a implements Thread.UncaughtExceptionHandler {
-    @Override // java.lang.Thread.UncaughtExceptionHandler
-    public final void uncaughtException(Thread thread, Throwable th) {
-        th.printStackTrace();
-    }
-}

feature/cw/src/main/java/k3/b.java

@@ -1,25 +0,0 @@
-package k3;
-
-import java.util.concurrent.Executors;
-import java.util.concurrent.ThreadFactory;
-
-/* loaded from: classes.dex */
-public final class b implements ThreadFactory {
-
-    /* renamed from: b, reason: collision with root package name */
-    public static final ThreadFactory f12091b = Executors.defaultThreadFactory();
-
-    /* renamed from: a, reason: collision with root package name */
-    public final a f12092a;
-
-    public b(a aVar) {
-        this.f12092a = aVar;
-    }
-
-    @Override // java.util.concurrent.ThreadFactory
-    public final Thread newThread(Runnable runnable) {
-        Thread newThread = f12091b.newThread(runnable);
-        newThread.setUncaughtExceptionHandler(this.f12092a);
-        return newThread;
-    }
-}

feature/cw/src/main/java/k3/c.java

@@ -1,42 +0,0 @@
-package k3;
-
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-import java.util.concurrent.Future;
-
-/* loaded from: classes.dex */
-public abstract class c {
-
-    /* renamed from: a, reason: collision with root package name */
-    public static final ExecutorService f12093a;
-
-    /* renamed from: b, reason: collision with root package name */
-    public static ExecutorService f12094b;
-    public static final int c;
-
-    /* renamed from: d, reason: collision with root package name */
-    public static final long f12095d;
-
-    /* JADX WARN: Type inference failed for: r1v0, types: [java.lang.Object, k3.a] */
-    static {
-        ExecutorService newCachedThreadPool = Executors.newCachedThreadPool(new b(new a()));
-        f12093a = newCachedThreadPool;
-        f12094b = newCachedThreadPool;
-        c = Runtime.getRuntime().availableProcessors();
-        f12095d = 100000L;
-    }
-
-    public static Future a(Runnable runnable) {
-        if (f12094b.isShutdown() || f12094b.isTerminated()) {
-            f12094b = f12093a;
-        }
-        return f12094b.submit(runnable);
-    }
-
-    public static void b(Future[] futureArr) throws InterruptedException, java.util.concurrent.ExecutionException {
-        // smali: no catch, thrown straight up -> Java declares throws (faithful)
-        for (Future future : futureArr) {
-            future.get();
-        }
-    }
-}

feature/cw/src/main/java/k3/d.java

@@ -1,100 +0,0 @@
-package k3;
-
-import com.rtbishop.look4sat.feature.cw.suncompat.Cleaner;
-
-/* loaded from: classes.dex */
-public final class d extends g {
-
-    /* renamed from: k, reason: collision with root package name */
-    public float[] f12096k;
-
-    public d() {
-    }
-
-    public d(long j4, boolean z3) {
-        this.f = q.f12106g;
-        this.f12103h = 4L;
-        if (j4 > 0) {
-            this.f12102g = j4;
-            if (j4 > 1073741824) {
-                this.f12105j = r.f12109a.allocateMemory(4 * j4);
-                if (z3) {
-                    a(j4);
-                }
-                Cleaner.create(this, new f(this.f12105j, this.f12102g, this.f12103h));
-                K1.a.c += this.f12102g * this.f12103h;
-                return;
-            }
-            this.f12096k = new float[(int) j4];
-            return;
-        }
-        throw new IllegalArgumentException(j4 + " is not a positive long value");
-    }
-
-    public final float b(long j4) {
-        float[] fArr = this.f12096k;
-        long j5 = this.f12105j;
-        if (j5 != 0) {
-            return r.f12109a.getFloat((this.f12103h * j4) + j5);
-        }
-        if (this.f12104i) {
-            return fArr[0];
-        }
-        return fArr[(int) j4];
-    }
-
-    public final void c(long j4, float f) {
-        long j5 = this.f12105j;
-        if (j5 != 0) {
-            r.f12109a.putFloat((this.f12103h * j4) + j5, f);
-        } else {
-            if (!this.f12104i) {
-                this.f12096k[(int) j4] = f;
-                return;
-            }
-            throw new IllegalAccessError("Constant arrays cannot be modified.");
-        }
-    }
-
-    /* JADX WARN: Type inference failed for: r0v1, types: [k3.g, java.lang.Object, k3.d] */
-    public final Object clone() {
-        if (this.f12104i) {
-            long j4 = this.f12102g;
-            float b4 = b(0L);
-            d gVar = new d();
-            gVar.f = q.f12106g;
-            gVar.f12103h = 4L;
-            if (j4 > 0) {
-                gVar.f12102g = j4;
-                gVar.f12104i = true;
-                gVar.f12096k = new float[]{b4};
-                return gVar;
-            }
-            throw new IllegalArgumentException(j4 + " is not a positive long value");
-        }
-        d dVar = new d(this.f12102g, false);
-        r.a(0L, 0L, this.f12102g, this, dVar);
-        return dVar;
-    }
-
-    @Override // k3.g
-    public final boolean equals(Object obj) {
-        if (!super.equals(obj) || this.f12096k != ((d) obj).f12096k) {
-            return false;
-        }
-        return true;
-    }
-
-    @Override // k3.g
-    public final int hashCode() {
-        int i4;
-        int hashCode = super.hashCode() * 29;
-        float[] fArr = this.f12096k;
-        if (fArr != null) {
-            i4 = fArr.hashCode();
-        } else {
-            i4 = 0;
-        }
-        return hashCode + i4;
-    }
-}

feature/cw/src/main/java/k3/e.java

@@ -1,79 +0,0 @@
-package k3;
-
-/* loaded from: classes.dex */
-public final class e implements Runnable {
-    public final /* synthetic */ long f;
-
-    /* renamed from: g, reason: collision with root package name */
-    public final /* synthetic */ long f12097g;
-
-    /* renamed from: h, reason: collision with root package name */
-    public final /* synthetic */ long f12098h;
-
-    /* renamed from: i, reason: collision with root package name */
-    public final /* synthetic */ g f12099i;
-
-    public e(g gVar, long j4, long j5, long j6) {
-        this.f12099i = gVar;
-        this.f = j4;
-        this.f12097g = j5;
-        this.f12098h = j6;
-    }
-
-    /* JADX WARN: Can't fix incorrect switch cases order, some code will duplicate */
-    /* JADX WARN: Failed to find 'out' block for switch in B:2:0x0011. Please report as an issue. */
-    @Override // java.lang.Runnable
-    public final void run() {
-        g gVar = this.f12099i;
-        int ordinal = gVar.f.ordinal();
-        long j4 = this.f12098h;
-        long j5 = this.f12097g;
-        long j6 = this.f;
-        switch (ordinal) {
-            case 0:
-            case 1:
-            case 2:
-            case 10:
-            case 11:
-                while (j6 < j5) {
-                    r.f12109a.putByte((gVar.f12103h * j6) + j4, (byte) 0);
-                    j6++;
-                }
-                return;
-            case 3:
-                while (j6 < j5) {
-                    r.f12109a.putShort((gVar.f12103h * j6) + j4, (short) 0);
-                    j6++;
-                }
-                return;
-            case 4:
-                while (j6 < j5) {
-                    r.f12109a.putInt((gVar.f12103h * j6) + j4, 0);
-                    j6++;
-                }
-                return;
-            case 5:
-                while (j6 < j5) {
-                    r.f12109a.putLong((gVar.f12103h * j6) + j4, 0L);
-                    j6++;
-                }
-                return;
-            case 6:
-                while (j6 < j5) {
-                    r.f12109a.putFloat((gVar.f12103h * j6) + j4, 0.0f);
-                    j6++;
-                }
-                return;
-            case 7:
-                while (j6 < j5) {
-                    r.f12109a.putDouble((gVar.f12103h * j6) + j4, 0.0d);
-                    j6++;
-                }
-                return;
-            case 8:
-            case 9:
-            default:
-                throw new IllegalArgumentException("Invalid array type.");
-        }
-    }
-}

feature/cw/src/main/java/k3/f.java

@@ -1,32 +0,0 @@
-package k3;
-
-/* loaded from: classes.dex */
-public final class f implements Runnable {
-    public long f;
-
-    /* renamed from: g, reason: collision with root package name */
-    public final long f12100g;
-
-    /* renamed from: h, reason: collision with root package name */
-    public final long f12101h;
-
-    public f(long j4, long j5, long j6) {
-        this.f = j4;
-        this.f12100g = j5;
-        this.f12101h = j6;
-    }
-
-    @Override // java.lang.Runnable
-    public final void run() {
-        long j4 = this.f;
-        if (j4 != 0) {
-            r.f12109a.freeMemory(j4);
-            this.f = 0L;
-            long j5 = K1.a.c - (this.f12100g * this.f12101h);
-            K1.a.c = j5;
-            if (j5 < 0) {
-                K1.a.c = 0L;
-            }
-        }
-    }
-}

feature/cw/src/main/java/k3/g.java

@@ -1,92 +0,0 @@
-package k3;
-
-import java.io.Serializable;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.Future;
-
-/* loaded from: classes.dex */
-public abstract class g implements Serializable, Cloneable {
-    public q f;
-
-    /* renamed from: g, reason: collision with root package name */
-    public long f12102g;
-
-    /* renamed from: h, reason: collision with root package name */
-    public long f12103h;
-
-    /* renamed from: i, reason: collision with root package name */
-    public boolean f12104i = false;
-
-    /* renamed from: j, reason: collision with root package name */
-    public long f12105j = 0;
-
-    public final void a(long j4) {
-        long j5;
-        g gVar = this;
-        long j6 = gVar.f12105j;
-        if (j6 != 0) {
-            long j7 = c.c;
-            double[][] dArr = g3.c.f11585a;
-            if (j4 <= j7) {
-                j7 = j4;
-            }
-            int i4 = (int) j7;
-            if (i4 > 2 && j4 >= c.f12095d) {
-                long j8 = j4 / i4;
-                Future[] futureArr = new Future[i4];
-                int i5 = 0;
-                while (i5 < i4) {
-                    long j9 = i5 * j8;
-                    if (i5 == i4 - 1) {
-                        j5 = j4;
-                    } else {
-                        j5 = j9 + j8;
-                    }
-                    futureArr[i5] = c.a(new e(gVar, j9, j5, j6));
-                    i5++;
-                    gVar = gVar;
-                    j6 = j6;
-                }
-                g gVar2 = gVar;
-                try {
-                    c.b(futureArr);
-                    return;
-                } catch (InterruptedException unused) {
-                    r.f12109a.setMemory(gVar2.f12105j, gVar2.f12103h * j4, (byte) 0);
-                    return;
-                } catch (ExecutionException unused2) {
-                    r.f12109a.setMemory(gVar2.f12105j, j4 * gVar2.f12103h, (byte) 0);
-                    return;
-                }
-            }
-            r.f12109a.setMemory(j6, gVar.f12103h * j4, (byte) 0);
-        }
-    }
-
-    public boolean equals(Object obj) {
-        if (obj != null && (obj instanceof g)) {
-            g gVar = (g) obj;
-            if (this.f == gVar.f && this.f12102g == gVar.f12102g && this.f12103h == gVar.f12103h && this.f12104i == gVar.f12104i && this.f12105j == gVar.f12105j) {
-                return true;
-            }
-            return false;
-        }
-        return false;
-    }
-
-    public int hashCode() {
-        int i4;
-        q qVar = this.f;
-        if (qVar != null) {
-            i4 = qVar.hashCode();
-        } else {
-            i4 = 0;
-        }
-        long j4 = this.f12102g;
-        int i5 = (((203 + i4) * 29) + ((int) (j4 ^ (j4 >>> 32)))) * 29;
-        long j5 = this.f12103h;
-        int i6 = (((i5 + ((int) (j5 ^ (j5 >>> 32)))) * 29) + (this.f12104i ? 1 : 0)) * 841;
-        long j6 = this.f12105j;
-        return i6 + ((int) (j6 ^ (j6 >>> 32)));
-    }
-}

feature/cw/src/main/java/k3/l.java

@@ -1,8 +0,0 @@
-package k3;
-
-/* loaded from: classes.dex */
-public final class l extends q {
-    public l() {
-        super("LONG", 5);
-    }
-}

feature/cw/src/main/java/k3/m.java

@@ -1,8 +0,0 @@
-package k3;
-
-/* loaded from: classes.dex */
-public final class m extends q {
-    public m() {
-        super("FLOAT", 6);
-    }
-}

feature/cw/src/main/java/k3/n.java

@@ -1,8 +0,0 @@
-package k3;
-
-/* loaded from: classes.dex */
-public final class n extends q {
-    public n() {
-        super("DOUBLE", 7);
-    }
-}

feature/cw/src/main/java/k3/q.java

@@ -1,68 +0,0 @@
-package k3;
-
-/**
- * R8-generated pseudo-enum (the k3 FFT library's array-type enum).
- * Direct q subclasses in smali: l (LONG/5), m (FLOAT/6), n (DOUBLE/7),
- * the other constants (BYTE/UNSIGNED_BYTE/SHORT/INT/COMPLEX_FLOAT/COMPLEX_DOUBLE/STRING/OBJECT)
- * are expressed directly as q instances.
- */
-public class q {
-    public static final l f;
-
-    /* renamed from: g, reason: collision with root package name */
-    public static final m f12106g;
-
-    /* renamed from: h, reason: collision with root package name */
-    public static final n f12107h;
-
-    /* renamed from: i, reason: collision with root package name */
-    public static final /* synthetic */ q[] f12108i;
-
-    private final String name;
-    private final int ordinal;
-
-    protected q(String name, int ordinal) {
-        this.name = name;
-        this.ordinal = ordinal;
-    }
-
-    public final String name() {
-        return name;
-    }
-
-    public final int ordinal() {
-        return ordinal;
-    }
-
-    public static q valueOf(String str) {
-        for (q qVar : f12108i) {
-            if (qVar.name.equals(str)) {
-                return qVar;
-            }
-        }
-        throw new IllegalArgumentException("No enum constant k3.q." + str);
-    }
-
-    public static q[] values() {
-        return (q[]) f12108i.clone();
-    }
-
-    static {
-        q logic = new q("LOGIC", 0);
-        q byteType = new q("BYTE", 1);
-        q unsignedByte = new q("UNSIGNED_BYTE", 2);
-        q shortType = new q("SHORT", 3);
-        q intType = new q("INT", 4);
-        l longType = new l();
-        f = longType;
-        m floatType = new m();
-        f12106g = floatType;
-        n doubleType = new n();
-        f12107h = doubleType;
-        q complexFloat = new q("COMPLEX_FLOAT", 8);
-        q complexDouble = new q("COMPLEX_DOUBLE", 9);
-        q string = new q("STRING", 10);
-        q object = new q("OBJECT", 11);
-        f12108i = new q[]{logic, byteType, unsignedByte, shortType, intType, longType, floatType, doubleType, complexFloat, complexDouble, string, object};
-    }
-}

feature/cw/src/main/java/k3/r.java

@@ -1,97 +0,0 @@
-package k3;
-
-import java.lang.reflect.Field;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.Future;
-import com.rtbishop.look4sat.feature.cw.suncompat.Unsafe;
-
-/* loaded from: classes.dex */
-public abstract class r {
-
-    /* renamed from: a, reason: collision with root package name */
-    public static final Unsafe f12109a;
-
-    static {
-        Object obj = null;
-        try {
-            Class<?> cls = Class.forName("sun.misc.Unsafe");
-            Field declaredField = cls.getDeclaredField("theUnsafe");
-            declaredField.setAccessible(true);
-            obj = declaredField.get(cls);
-        } catch (ClassNotFoundException | IllegalAccessException | IllegalArgumentException | NoSuchFieldException | SecurityException ignored) {
-            // Android adaptation: sun.misc.Unsafe may be unavailable (hidden API); silently degrades to null;
-            // the large-array native path (j4 > 1GB) never triggers in real decoding
-        }
-        f12109a = (Unsafe) obj;
-    }
-
-    public static void a(long j4, long j5, long j6, d dVar, d dVar2) {
-        long j7;
-        if (j4 >= 0 && j4 < dVar.f12102g) {
-            if (j5 >= 0 && j5 < dVar2.f12102g) {
-                if (j6 >= 0) {
-                    if (!dVar2.f12104i) {
-                        long j8 = c.c;
-                        double[][] dArr = g3.c.f11585a;
-                        if (j6 <= j8) {
-                            j8 = j6;
-                        }
-                        int i4 = (int) j8;
-                        if (i4 >= 2 && j6 >= c.f12095d) {
-                            long j9 = j6 / i4;
-                            Future[] futureArr = new Future[i4];
-                            int i5 = 0;
-                            while (i5 < i4) {
-                                long j10 = i5 * j9;
-                                if (i5 == i4 - 1) {
-                                    j7 = j6;
-                                } else {
-                                    j7 = j10 + j9;
-                                }
-                                Future[] futureArr2 = futureArr;
-                                int i6 = i5;
-                                futureArr2[i6] = c.a(new j3.b(j10, j7, j5, j4, dVar2, dVar));
-                                i5 = i6 + 1;
-                                futureArr = futureArr2;
-                            }
-                            try {
-                                c.b(futureArr);
-                                return;
-                            } catch (InterruptedException unused) {
-                                long j11 = j4;
-                                long j12 = j5;
-                                while (j11 < j4 + j6) {
-                                    dVar2.c(j12, dVar.b(j11));
-                                    j11++;
-                                    j12++;
-                                }
-                                return;
-                            } catch (ExecutionException unused2) {
-                                long j13 = j4;
-                                long j14 = j5;
-                                while (j13 < j4 + j6) {
-                                    dVar2.c(j14, dVar.b(j13));
-                                    j13++;
-                                    j14++;
-                                }
-                                return;
-                            }
-                        }
-                        long j15 = j4;
-                        long j16 = j5;
-                        while (j15 < j4 + j6) {
-                            dVar2.c(j16, dVar.b(j15));
-                            j15++;
-                            j16++;
-                        }
-                        return;
-                    }
-                    throw new IllegalArgumentException("Constant arrays cannot be modified.");
-                }
-                throw new IllegalArgumentException("length < 0");
-            }
-            throw new ArrayIndexOutOfBoundsException("destPos < 0 || destPos >= dest.length()");
-        }
-        throw new ArrayIndexOutOfBoundsException("srcPos < 0 || srcPos >= src.length()");
-    }
-}

feature/cw/src/main/java/k3/s.java

@@ -1,167 +0,0 @@
-package k3;
-
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.Future;
-import com.rtbishop.look4sat.feature.cw.suncompat.Cleaner;
-import com.rtbishop.look4sat.feature.cw.suncompat.Unsafe;
-
-/* loaded from: classes.dex */
-public final class s extends g {
-
-    /* renamed from: k, reason: collision with root package name */
-    public long[] f12110k;
-
-    public s() {
-    }
-
-    public s(long j4, boolean z3) {
-        this.f = q.f;
-        this.f12103h = 8L;
-        if (j4 > 0) {
-            this.f12102g = j4;
-            if (j4 > 1073741824) {
-                this.f12105j = r.f12109a.allocateMemory(8 * j4);
-                if (z3) {
-                    a(j4);
-                }
-                Cleaner.create(this, new f(this.f12105j, this.f12102g, this.f12103h));
-                K1.a.c += this.f12102g * this.f12103h;
-                return;
-            }
-            this.f12110k = new long[(int) j4];
-            return;
-        }
-        throw new IllegalArgumentException(j4 + " is not a positive long value");
-    }
-
-    public final long b(long j4) {
-        long[] jArr = this.f12110k;
-        long j5 = this.f12105j;
-        if (j5 != 0) {
-            return r.f12109a.getLong((this.f12103h * j4) + j5);
-        }
-        if (this.f12104i) {
-            return jArr[0];
-        }
-        return jArr[(int) j4];
-    }
-
-    public final void c(long j4, long j5) {
-        long j6 = this.f12105j;
-        if (j6 != 0) {
-            r.f12109a.putLong((this.f12103h * j4) + j6, j5);
-        } else {
-            if (!this.f12104i) {
-                this.f12110k[(int) j4] = j5;
-                return;
-            }
-            throw new IllegalAccessError("Constant arrays cannot be modified.");
-        }
-    }
-
-    /* JADX WARN: Type inference failed for: r0v29, types: [k3.g, java.lang.Object, k3.s] */
-    public final Object clone() {
-        long j4;
-        int i4 = 0;
-        long j5 = 0;
-        if (this.f12104i) {
-            long j6 = this.f12102g;
-            long b4 = b(0L);
-            s gVar = new s();
-            gVar.f = q.f12107h;
-            gVar.f12103h = 8L;
-            if (j6 > 0) {
-                gVar.f12102g = j6;
-                gVar.f12104i = true;
-                gVar.f12110k = new long[]{b4};
-                return gVar;
-            }
-            throw new IllegalArgumentException(j6 + " is not a positive long value");
-        }
-        s sVar = new s(this.f12102g, false);
-        long j7 = this.f12102g;
-        Unsafe unsafe = r.f12109a;
-        if (0 < j7) {
-            if (0 < sVar.f12102g) {
-                if (j7 >= 0) {
-                    if (!sVar.f12104i) {
-                        long j8 = c.c;
-                        double[][] dArr = g3.c.f11585a;
-                        if (j7 <= j8) {
-                            j8 = j7;
-                        }
-                        int i5 = (int) j8;
-                        if (i5 >= 2 && j7 >= c.f12095d) {
-                            long j9 = j7 / i5;
-                            Future[] futureArr = new Future[i5];
-                            while (i4 < i5) {
-                                long j10 = i4 * j9;
-                                if (i4 == i5 - 1) {
-                                    j4 = j7;
-                                } else {
-                                    j4 = j10 + j9;
-                                }
-                                Future[] futureArr2 = futureArr;
-                                int i6 = i4;
-                                futureArr2[i6] = c.a(new i3.c(j10, j4, sVar, this));
-                                i4 = i6 + 1;
-                                futureArr = futureArr2;
-                            }
-                            try {
-                                c.b(futureArr);
-                                return sVar;
-                            } catch (InterruptedException unused) {
-                                long j11 = 0;
-                                while (j5 < j7) {
-                                    sVar.c(j11, b(j5));
-                                    j5++;
-                                    j11++;
-                                }
-                            } catch (ExecutionException unused2) {
-                                long j12 = 0;
-                                while (j5 < j7) {
-                                    sVar.c(j12, b(j5));
-                                    j5++;
-                                    j12++;
-                                }
-                            }
-                        } else {
-                            long j13 = 0;
-                            while (j5 < j7) {
-                                sVar.c(j13, b(j5));
-                                j5++;
-                                j13++;
-                            }
-                        }
-                        return sVar;
-                    }
-                    throw new IllegalArgumentException("Constant arrays cannot be modified.");
-                }
-                throw new IllegalArgumentException("length < 0");
-            }
-            throw new ArrayIndexOutOfBoundsException("destPos < 0 || destPos >= dest.length()");
-        }
-        throw new ArrayIndexOutOfBoundsException("srcPos < 0 || srcPos >= src.length()");
-    }
-
-    @Override // k3.g
-    public final boolean equals(Object obj) {
-        if (!super.equals(obj) || this.f12110k != ((s) obj).f12110k) {
-            return false;
-        }
-        return true;
-    }
-
-    @Override // k3.g
-    public final int hashCode() {
-        int i4;
-        int hashCode = super.hashCode() * 29;
-        long[] jArr = this.f12110k;
-        if (jArr != null) {
-            i4 = jArr.hashCode();
-        } else {
-            i4 = 0;
-        }
-        return hashCode + i4;
-    }
-}

feature/cw/src/main/java/pas/cwstru.java

@@ -1,144 +0,0 @@
-package pas;
-
-import pas.system;
-
-/* loaded from: classes.dex */
-public class cwstru {
-
-    /* loaded from: classes.dex */
-    public static class TMorseCharInfo extends system.Record {
-        public TMorseCharInfo(long j4, boolean z3) {
-            __Init(j4, z3);
-        }
-
-        private native void __Destroy(long j4);
-
-        @Override // pas.system.PascalObjectEx
-        public void __Release() {
-            __Destroy(this._pasobj);
-            this._pasobj = 0L;
-        }
-
-        @Override // pas.system.Record
-        public int __Size() {
-            return __Size(0);
-        }
-
-        public native char getCh();
-
-        public native int getIdxE();
-
-        public native boolean getLowSnr();
-
-        public native TWordEndType getWordEnd();
-
-        public native float getWordSpaceProb();
-
-        public native TMorseWordType getWordType();
-
-        public native void setCh(char c);
-
-        public native void setIdxE(int i4);
-
-        public native void setLowSnr(boolean z3);
-
-        public native void setWordEnd(TWordEndType tWordEndType);
-
-        public native void setWordSpaceProb(float f);
-
-        public native void setWordType(TMorseWordType tMorseWordType);
-
-        public TMorseCharInfo() {
-            __Init(0L, true);
-        }
-
-        public TMorseCharInfo(system.PascalObject pascalObject) {
-            super(pascalObject);
-        }
-
-        public TMorseCharInfo(long j4) {
-            super(j4);
-        }
-    }
-
-    /* loaded from: classes.dex */
-    public static class TMorseWordType extends system.Enum {
-        public static final int wtCall = 5;
-        public static final int wtCq = 3;
-        public static final int wtGenWord = 0;
-        public static final int wtKeyword = 1;
-        public static final int wtQrl = 4;
-        public static final int wtRst = 2;
-
-        public TMorseWordType(int i4) {
-            this.Value = i4;
-        }
-
-        public static TMorseWordType wtCall() {
-            return new TMorseWordType(5);
-        }
-
-        public static TMorseWordType wtCq() {
-            return new TMorseWordType(3);
-        }
-
-        public static TMorseWordType wtGenWord() {
-            return new TMorseWordType(0);
-        }
-
-        public static TMorseWordType wtKeyword() {
-            return new TMorseWordType(1);
-        }
-
-        public static TMorseWordType wtQrl() {
-            return new TMorseWordType(4);
-        }
-
-        public static TMorseWordType wtRst() {
-            return new TMorseWordType(2);
-        }
-
-        @Override // pas.system.Enum
-        public boolean equals(Object obj) {
-            if (((obj instanceof TMorseWordType) && this.Value == ((TMorseWordType) obj).Value) || super.equals(obj)) {
-                return true;
-            }
-            return false;
-        }
-    }
-
-    /* loaded from: classes.dex */
-    public static class TWordEndType extends system.Enum {
-        public static final int weLong = 2;
-        public static final int weNone = 0;
-        public static final int weShort = 1;
-
-        public TWordEndType(int i4) {
-            this.Value = i4;
-        }
-
-        public static TWordEndType weLong() {
-            return new TWordEndType(2);
-        }
-
-        public static TWordEndType weNone() {
-            return new TWordEndType(0);
-        }
-
-        public static TWordEndType weShort() {
-            return new TWordEndType(1);
-        }
-
-        @Override // pas.system.Enum
-        public boolean equals(Object obj) {
-            if (((obj instanceof TWordEndType) && this.Value == ((TWordEndType) obj).Value) || super.equals(obj)) {
-                return true;
-            }
-            return false;
-        }
-    }
-
-    static {
-        system.InitJni();
-    }
-}

feature/cw/src/main/java/pas/decoder.java

@@ -1,171 +0,0 @@
-package pas;
-
-import pas.cwstru;
-import pas.system;
-
-/* loaded from: classes.dex */
-public class decoder {
-
-    /* loaded from: classes.dex */
-    public static class TCharInfo extends system.TObject {
-        public TCharInfo(system.PascalObject pascalObject) {
-            super(pascalObject);
-        }
-
-        public static TCharInfo Class() {
-            return new TCharInfo(system.GetClassRef(1));
-        }
-
-        public static native TCharInfo Create();
-
-        public static native TCharInfo Create(char c);
-
-        public static native TCharInfo Create(cwstru.TMorseCharInfo tMorseCharInfo);
-
-        public static system.TClass TClass() {
-            return system.GetTClass(1);
-        }
-
-        public native char getChar();
-
-        public native boolean getLowSnr();
-
-        public native TMorseWordType getWordType();
-
-        public TCharInfo(long j4) {
-            super(j4);
-        }
-    }
-
-    /* loaded from: classes.dex */
-    public static class TDecoder extends system.TObject {
-        public TDecoder(system.PascalObject pascalObject) {
-            super(pascalObject);
-        }
-
-        public static TDecoder Class() {
-            return new TDecoder(system.GetClassRef(2));
-        }
-
-        public static native TDecoder Create();
-
-        public static system.TClass TClass() {
-            return system.GetTClass(2);
-        }
-
-        public native TCharInfo GetChar(int i4);
-
-        public native void LockToPitch(int i4);
-
-        public native int getCharCount();
-
-        public native int getDeleteCount();
-
-        public native boolean getHamMode();
-
-        public native int getPitch();
-
-        public native int getSignalCount();
-
-        public native int getSnr();
-
-        public native int getWpm();
-
-        public native void setHamMode(boolean z3);
-
-        public TDecoder(long j4) {
-            super(j4);
-        }
-    }
-
-    /* loaded from: classes.dex */
-    public static class TDecoderState extends system.Enum {
-        public static final int dsDecoding = 2;
-        public static final int dsLockedDecoding = 4;
-        public static final int dsLockedPause = 3;
-        public static final int dsNone = 0;
-        public static final int dsPause = 1;
-
-        public TDecoderState(int i4) {
-            this.Value = i4;
-        }
-
-        public static TDecoderState dsDecoding() {
-            return new TDecoderState(2);
-        }
-
-        public static TDecoderState dsLockedDecoding() {
-            return new TDecoderState(4);
-        }
-
-        public static TDecoderState dsLockedPause() {
-            return new TDecoderState(3);
-        }
-
-        public static TDecoderState dsNone() {
-            return new TDecoderState(0);
-        }
-
-        public static TDecoderState dsPause() {
-            return new TDecoderState(1);
-        }
-
-        @Override // pas.system.Enum
-        public boolean equals(Object obj) {
-            if (((obj instanceof TDecoderState) && this.Value == ((TDecoderState) obj).Value) || super.equals(obj)) {
-                return true;
-            }
-            return false;
-        }
-    }
-
-    /* loaded from: classes.dex */
-    public static class TMorseWordType extends system.Enum {
-        public static final int wtCall = 5;
-        public static final int wtCq = 3;
-        public static final int wtGenWord = 0;
-        public static final int wtKeyword = 1;
-        public static final int wtQrl = 4;
-        public static final int wtRst = 2;
-
-        public TMorseWordType(int i4) {
-            this.Value = i4;
-        }
-
-        public static TMorseWordType wtCall() {
-            return new TMorseWordType(5);
-        }
-
-        public static TMorseWordType wtCq() {
-            return new TMorseWordType(3);
-        }
-
-        public static TMorseWordType wtGenWord() {
-            return new TMorseWordType(0);
-        }
-
-        public static TMorseWordType wtKeyword() {
-            return new TMorseWordType(1);
-        }
-
-        public static TMorseWordType wtQrl() {
-            return new TMorseWordType(4);
-        }
-
-        public static TMorseWordType wtRst() {
-            return new TMorseWordType(2);
-        }
-
-        @Override // pas.system.Enum
-        public boolean equals(Object obj) {
-            if (((obj instanceof TMorseWordType) && this.Value == ((TMorseWordType) obj).Value) || super.equals(obj)) {
-                return true;
-            }
-            return false;
-        }
-    }
-
-    static {
-        system.InitJni();
-    }
-}

feature/cw/src/main/java/pas/nativedecoder.java

@@ -1,35 +0,0 @@
-package pas;
-
-import pas.decoder;
-import pas.system;
-
-/* loaded from: classes.dex */
-public class nativedecoder {
-
-    /* loaded from: classes.dex */
-    public static class TNativeDecoder extends decoder.TDecoder {
-        public TNativeDecoder(system.PascalObject pascalObject) {
-            super(pascalObject);
-        }
-
-        public static TNativeDecoder Class() {
-            return new TNativeDecoder(system.GetClassRef(3));
-        }
-
-        public static native TNativeDecoder Create();
-
-        public static system.TClass TClass() {
-            return system.GetTClass(3);
-        }
-
-        public native decoder.TDecoderState ProcessSpectrum(Object obj);
-
-        public TNativeDecoder(long j4) {
-            super(j4);
-        }
-    }
-
-    static {
-        system.InitJni();
-    }
-}

feature/cw/src/main/java/pas/system.java

@@ -1,385 +0,0 @@
-package pas;
-
-import java.util.Date;
-import java.util.TimeZone;
-
-/* loaded from: classes.dex */
-public class system {
-    private static boolean _JniLibLoaded = false;
-
-    /* loaded from: classes.dex */
-    public static abstract class BaseSet {
-        protected int Value = 0;
-
-        public abstract int Base();
-
-        public abstract int ElMax();
-
-        public abstract byte Size();
-    }
-
-    /* loaded from: classes.dex */
-    public static class Enum {
-        public int Value;
-
-        public int Ord() {
-            return this.Value;
-        }
-
-        public boolean equals(Object obj) {
-            return (obj instanceof Integer) && this.Value == ((Integer) obj).intValue();
-        }
-
-        public int hashCode() {
-            return this.Value;
-        }
-
-        public boolean equals(int i4) {
-            return this.Value == i4;
-        }
-    }
-
-    /* loaded from: classes.dex */
-    public static class MethodPtr extends PascalObjectEx {
-        protected String mName;
-        protected Object mObject;
-        protected String mSignature;
-
-        public MethodPtr() {
-            this._cleanup = true;
-            this._pasobj = -1L;
-        }
-
-        private native void __Destroy();
-
-        private native void __Init(Object obj, String str, String str2, boolean z3);
-
-        public void Init() {
-            boolean z3;
-            Object obj = this.mObject;
-            String str = this.mName;
-            String str2 = this.mSignature;
-            if (this != obj) {
-                z3 = true;
-            } else {
-                z3 = false;
-            }
-            __Init(obj, str, str2, z3);
-        }
-
-        @Override // pas.system.PascalObjectEx
-        public void __Release() {
-            if (this._pasobj > 0) {
-                __Destroy();
-            }
-        }
-    }
-
-    /* loaded from: classes.dex */
-    public static abstract class PascalInterface extends PascalObjectEx {
-        public PascalInterface(long j4, boolean z3) {
-            this._pasobj = j4;
-            __Init();
-        }
-
-        public abstract void __Init();
-
-        public void __TypeCast(PascalObject pascalObject, String str) {
-            if (pascalObject != null) {
-                if (pascalObject instanceof PascalInterface) {
-                    this._pasobj = pascalObject._pasobj;
-                    __Init();
-                } else {
-                    this._pasobj = system.InterfaceCast(pascalObject._pasobj, str);
-                }
-            }
-        }
-    }
-
-    /* loaded from: classes.dex */
-    public static class Record extends PascalObjectEx {
-        protected PascalObject _objref;
-
-        public Record(PascalObject pascalObject) {
-            super(pascalObject);
-            this._objref = pascalObject;
-        }
-
-        public void __Init(long j4, boolean z3) {
-            this._pasobj = j4;
-            this._cleanup = z3;
-            if (j4 == 0 && __Size() != 0) {
-                this._pasobj = system.AllocMemory(__Size());
-            }
-        }
-
-        public int __Size() {
-            return 0;
-        }
-
-        @Override // pas.system.PascalObjectEx, pas.system.PascalObject
-        public void finalize() {
-            long j4 = this._pasobj;
-            if (j4 < 0) {
-                this._pasobj = -j4;
-                this._cleanup = true;
-            }
-            super.finalize();
-        }
-
-        public Record(long j4) {
-            super(j4);
-        }
-
-        public final int __Size(int i4) {
-            return system.GetRecordSize(i4);
-        }
-
-        public Record() {
-        }
-    }
-
-    /* loaded from: classes.dex */
-    public static abstract class Set<TS extends BaseSet, TE extends Enum> extends BaseSet {
-        public Set() {
-        }
-
-        public void Assign(TS ts) {
-            this.Value = ts.Value;
-        }
-
-        public void Exclude(TE... teArr) {
-            for (TE te : teArr) {
-                this.Value = (~GetMask(te)) & this.Value;
-            }
-        }
-
-        public int GetMask(TE te) {
-            return 1 << (te.Ord() - Base());
-        }
-
-        public boolean Has(TE te) {
-            if ((GetMask(te) & this.Value) != 0) {
-                return true;
-            }
-            return false;
-        }
-
-        public void Include(TE... teArr) {
-            for (TE te : teArr) {
-                this.Value = GetMask(te) | this.Value;
-            }
-        }
-
-        public void Intersect(TS ts) {
-            this.Value = ts.Value & this.Value;
-        }
-
-        public boolean IsEmpty() {
-            if (this.Value == 0) {
-                return true;
-            }
-            return false;
-        }
-
-        public boolean equals(TS ts) {
-            return this.Value == ts.Value;
-        }
-
-        public Set(TE... teArr) {
-            Include(teArr);
-        }
-
-        public void Exclude(TS ts) {
-            this.Value = (~ts.Value) & this.Value;
-        }
-
-        public void Include(TS ts) {
-            this.Value = ts.Value | this.Value;
-        }
-
-        public boolean equals(TE te) {
-            return this.Value == te.Ord();
-        }
-
-        public Set(TS... tsArr) {
-            for (TS ts : tsArr) {
-                Include(ts);  // smali: Set(TS...) 循环调 Include(BaseSet)
-            }
-        }
-
-        public boolean equals(int i4) {
-            return this.Value == i4;
-        }
-    }
-
-    /* loaded from: classes.dex */
-    public static class TClass extends TObject {
-        public TClass(PascalObject pascalObject) {
-            super(pascalObject);
-        }
-    }
-
-    /* loaded from: classes.dex */
-    public static class TDateTime {
-        public static double get(Date date) {
-            return ((date.getTime() + TimeZone.getDefault().getOffset(date.getTime())) / 8.64E7d) + 25569.0d;
-        }
-
-        public static double getUTC(Date date) {
-            return (date.getTime() / 8.64E7d) + 25569.0d;
-        }
-
-        public static Date toDate(double d4) {
-            return new Date(Math.round((d4 - 25569.0d) * 8.64E7d) - TimeZone.getDefault().getOffset(Math.round((d4 - 25569.0d) * 8.64E7d)));  // r3 = 前值(smali)
-        }
-
-        public static Date toDateUTC(double d4) {
-            return new Date(Math.round((d4 - 25569.0d) * 8.64E7d));
-        }
-    }
-
-    /* loaded from: classes.dex */
-    public static class TObject extends PascalObject {
-        public TObject(PascalObject pascalObject) {
-            super(pascalObject);
-        }
-
-        public static TObject Class() {
-            return new TObject(system.GetClassRef(0));
-        }
-
-        public static native TObject Create();
-
-        public static TClass TClass() {
-            return system.GetTClass(0);
-        }
-
-        public native String ClassName();
-
-        public native boolean ClassNameIs(String str);
-
-        public native TClass ClassParent();
-
-        public native TClass ClassType();
-
-        public native void Destroy();
-
-        public native void Free();
-
-        public native boolean InheritsFrom(TClass tClass);
-
-        public native int InstanceSize();
-
-        public TObject(long j4) {
-            super(j4);
-        }
-    }
-
-    static {
-        InitJni();
-    }
-
-    public static native long AllocMemory(int i4);
-
-    public static native long GetClassRef(int i4);
-
-    public static native byte[] GetMemoryAsArray(long j4, int i4);
-
-    /* JADX INFO: Access modifiers changed from: private */
-    public static native int GetRecordSize(int i4);
-
-    public static TClass GetTClass(int i4) {
-        TClass tClass = new TClass(null);
-        tClass._pasobj = GetClassRef(i4);
-        return tClass;
-    }
-
-    public static void InitJni() {
-        if (!_JniLibLoaded) {
-            _JniLibLoaded = true;
-            System.loadLibrary("nativedecoderjni");
-        }
-    }
-
-    /* JADX INFO: Access modifiers changed from: private */
-    public static native long InterfaceCast(long j4, String str);
-
-    public static long Pointer(PascalObject pascalObject) {
-        if (pascalObject == null) {
-            return 0L;
-        }
-        return pascalObject._pasobj;
-    }
-
-    public static native void SetMemoryFromArray(long j4, byte[] bArr);
-
-    /* loaded from: classes.dex */
-    public static class PascalObject {
-        protected long _pasobj;
-
-        static {
-            system.InitJni();
-        }
-
-        public PascalObject() {
-            this._pasobj = 0L;
-        }
-
-        public boolean equals(Object obj) {
-            if ((obj instanceof PascalObject) && this._pasobj == ((PascalObject) obj)._pasobj) {
-                return true;
-            }
-            return false;
-        }
-
-        public void finalize() {
-        }
-
-        public int hashCode() {
-            return (int) this._pasobj;
-        }
-
-        public PascalObject(PascalObject pascalObject) {
-            this._pasobj = 0L;
-            if (pascalObject != null) {
-                this._pasobj = pascalObject._pasobj;
-            }
-        }
-
-        public PascalObject(long j4) {
-            this._pasobj = j4;
-        }
-    }
-
-    /* loaded from: classes.dex */
-    public static class PascalObjectEx extends PascalObject {
-        protected boolean _cleanup;
-
-        public PascalObjectEx() {
-            this._cleanup = false;
-        }
-
-        public void __Release() {
-            this._pasobj = 0L;
-        }
-
-        @Override // pas.system.PascalObject
-        public void finalize() {
-            if (this._cleanup) {
-                __Release();
-            }
-            super.finalize();
-        }
-
-        public PascalObjectEx(PascalObject pascalObject) {
-            super(pascalObject);
-            this._cleanup = false;
-        }
-
-        public PascalObjectEx(long j4) {
-            super(j4);
-            this._cleanup = false;
-        }
-    }
-}

feature/cw/src/main/java/s/AbstractC1880e.java

@@ -1,16 +0,0 @@
-package s;
-
-/* renamed from: s.e, reason: case insensitive filesystem */
-/* loaded from: classes.dex */
-public abstract /* synthetic */ class AbstractC1880e {
-
-    /* renamed from: a, reason: collision with root package name */
-    public static final /* synthetic */ int[] f13163a = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28};
-
-    public static /* synthetic */ int a(int i4) {
-        if (i4 != 0) {
-            return i4 - 1;
-        }
-        throw null;
-    }
-}

feature/cw/src/main/res/drawable/ic_baseline_delete_24.xml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:tint="?attr/colorControlNormal"
-    android:height="24dp"
-    android:width="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-    <path
-        android:fillColor="@android:color/white"
-        android:pathData="M6,19c0,1.1 0.9,2 2,2h8c1.1,0 2,-0.9 2,-2V7H6v12zM19,4h-3.5l-1,-1h-5l-1,1H5v2h14V4z"/>
-</vector>

feature/cw/src/main/res/drawable/ic_baseline_pause_24.xml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:tint="?attr/colorControlNormal"
-    android:height="24dp"
-    android:width="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-    <path
-        android:fillColor="@android:color/white"
-        android:pathData="M6,19h4L10,5L6,5v14zM14,5v14h4L18,5h-4z"/>
-</vector>

feature/cw/src/main/res/drawable/ic_baseline_save_24.xml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:tint="?attr/colorControlNormal"
-    android:height="24dp"
-    android:width="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-    <path
-        android:fillColor="@android:color/white"
-        android:pathData="M17,3L5,3c-1.11,0 -2,0.9 -2,2v14c0,1.1 0.89,2 2,2h14c1.1,0 2,-0.9 2,-2L21,7l-4,-4zM12,19c-1.66,0 -3,-1.34 -3,-3s1.34,-3 3,-3 3,1.34 3,3 -1.34,3 -3,3zM15,9L5,9L5,5h10v4z"/>
-</vector>

feature/cw/src/main/res/drawable/ic_baseline_share_24.xml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:tint="?attr/colorControlNormal"
-    android:height="24dp"
-    android:width="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-    <path
-        android:fillColor="@android:color/white"
-        android:pathData="M18,16.08c-0.76,0 -1.44,0.3 -1.96,0.77L8.91,12.7c0.05,-0.23 0.09,-0.46 0.09,-0.7s-0.04,-0.47 -0.09,-0.7l7.05,-4.11c0.54,0.5 1.25,0.81 2.04,0.81 1.66,0 3,-1.34 3,-3s-1.34,-3 -3,-3 -3,1.34 -3,3c0,0.24 0.04,0.47 0.09,0.7L8.04,9.81C7.5,9.31 6.79,9 6,9c-1.66,0 -3,1.34 -3,3s1.34,3 3,3c0.79,0 1.5,-0.31 2.04,-0.81l7.12,4.16c-0.05,0.21 -0.08,0.43 -0.08,0.65 0,1.61 1.31,2.92 2.92,2.92 1.61,0 2.92,-1.31 2.92,-2.92s-1.31,-2.92 -2.92,-2.92z"/>
-</vector>

feature/cw/src/main/res/layout/activity_main.xml

@@ -1,55 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:fitsSystemWindows="true"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
-    <LinearLayout
-        android:orientation="vertical"
-        android:id="@+id/verticalLayout"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:keepScreenOn="true">
-        <TextView
-            android:textColor="#ffffff"
-            android:id="@+id/statusTextView"
-            android:background="@color/purple_500"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/idle"/>
-        <LinearLayout
-            android:orientation="horizontal"
-            android:layout_width="match_parent"
-            android:layout_height="100dp">
-            <com.ve3nea.morse_expert.WaterfallSurfaceView
-                android:id="@+id/waterfallView"
-                android:layout_width="0dp"
-                android:layout_height="match_parent"
-                android:layout_weight="1"
-                android:contentDescription="@string/waterfall_display"/>
-            <com.ve3nea.morse_expert.ScaleView
-                android:id="@+id/scaleView"
-                android:background="#24545a"
-                android:layout_width="12dp"
-                android:layout_height="match_parent"
-                android:layout_weight="0"
-                android:contentDescription="@string/frequency_scale"/>
-        </LinearLayout>
-        <com.ve3nea.morse_expert.DecodedTextView
-            android:textSize="18sp"
-            android:typeface="monospace"
-            android:textColor="#444444"
-            android:textColorHint="#888888"
-            android:gravity="start|top"
-            android:id="@+id/decodedTextView"
-            android:background="#d1f0f4"
-            android:scrollbars="vertical"
-            android:layout_width="match_parent"
-            android:layout_height="0dp"
-            android:hint="@string/decoded_text"
-            android:freezesText="false"
-            android:layout_weight="1"
-            android:inputType="none"
-            android:fadeScrollbars="false"
-            android:textIsSelectable="true"/>
-    </LinearLayout>
-</androidx.constraintlayout.widget.ConstraintLayout>

feature/cw/src/main/res/layout/cw_panel_main.xml

@@ -1,59 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
-    <LinearLayout
-        android:orientation="vertical"
-        android:id="@+id/verticalLayout"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:keepScreenOn="true">
-        <TextView
-            android:textColor="#ffffff"
-            android:textSize="10sp"
-            android:singleLine="true"
-            android:ellipsize="end"
-            android:visibility="gone"
-            android:id="@+id/statusTextView"
-            android:background="@color/purple_500"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/idle"/>
-        <LinearLayout
-            android:orientation="horizontal"
-            android:layout_width="match_parent"
-            android:layout_height="80dp">
-            <com.ve3nea.morse_expert.WaterfallSurfaceView
-                android:id="@+id/waterfallView"
-                android:layout_width="0dp"
-                android:layout_height="match_parent"
-                android:layout_weight="1"
-                android:contentDescription="@string/waterfall_display"/>
-            <com.ve3nea.morse_expert.ScaleView
-                android:id="@+id/scaleView"
-                android:background="#24545a"
-                android:layout_width="8dp"
-                android:layout_height="match_parent"
-                android:layout_weight="0"
-                android:contentDescription="@string/frequency_scale"/>
-        </LinearLayout>
-        <com.ve3nea.morse_expert.DecodedTextView
-            android:textSize="12sp"
-            android:typeface="monospace"
-            android:textColor="#444444"
-            android:textColorHint="#888888"
-            android:gravity="start|top"
-            android:id="@+id/decodedTextView"
-            android:background="#d1f0f4"
-            android:scrollbars="vertical"
-            android:layout_width="match_parent"
-            android:layout_height="0dp"
-            android:hint="@string/decoded_text"
-            android:freezesText="false"
-            android:layout_weight="1"
-            android:minHeight="48dp"
-            android:inputType="none"
-            android:fadeScrollbars="false"
-            android:textIsSelectable="true"/>
-    </LinearLayout>
-</androidx.constraintlayout.widget.ConstraintLayout>

feature/cw/src/main/res/menu/options_menu.xml

@@ -1,33 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<menu xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto">
-    <item
-        android:icon="@drawable/ic_baseline_pause_24"
-        android:id="@+id/pause_mnu"
-        android:title="@string/pause"
-        app:showAsAction="ifRoom"/>
-    <item
-        android:icon="@drawable/ic_baseline_delete_24"
-        android:id="@+id/clear_mnu"
-        android:title="@string/clear"
-        app:showAsAction="ifRoom"/>
-    <item
-        android:icon="@drawable/ic_baseline_save_24"
-        android:id="@+id/save_mnu"
-        android:title="@string/save_text"
-        app:showAsAction="ifRoom"/>
-    <item
-        android:id="@+id/record_signals_mnu"
-        android:title="@string/record_signals"/>
-    <item
-        android:id="@+id/settings_mnu"
-        android:title="@string/settings"/>
-    <item
-        android:id="@+id/help_mnu"
-        android:title="@string/help"/>
-    <item
-        android:id="@+id/rate_mnu"
-        android:title="@string/rate"/>
-    <item
-        android:id="@+id/premium_mnu"
-        android:title="@string/premium"/>
-</menu>

feature/radar/build.gradle.kts

@@ -8,8 +8,7 @@ android {
 
 dependencies {
     implementation(project(":feature:mutual"))
-    // CW 解码面板: 复用 feature:cw 的 Morse Expert 引擎(布局 cw_panel_main + MainActivity 控制器)
+    // CW 解码面板: 复用 feature:cw 的 fldigi 解码引擎(纯 Compose 面板)
     implementation(project(":feature:cw"))
-    // 与 feature:cw 一致(控制器按 ID 递归查找 ConstraintLayout 视图)
     implementation("androidx.constraintlayout:constraintlayout:2.2.1")
 }

feature/radar/src/main/java/com/rtbishop/look4sat/feature/radar/TransceiversPage.kt

@@ -17,11 +17,13 @@
  */
 package com.rtbishop.look4sat.feature.radar
 
-import android.app.Activity
+import android.media.AudioFormat
-import android.view.LayoutInflater
+import android.media.AudioRecord
+import android.media.MediaRecorder
 import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.animation.expandVertically
 import androidx.compose.animation.shrinkVertically
+import androidx.compose.foundation.Canvas
 import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.interaction.MutableInteractionSource
@@ -41,6 +43,7 @@ import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.itemsIndexed
 import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.material3.Button
 import androidx.compose.material3.FilterChip
@@ -53,35 +56,46 @@ import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.currentCoroutineContext
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.flow.flowOn
+import kotlinx.coroutines.isActive
+import kotlinx.coroutines.launch
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.draw.rotate
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.geometry.Size
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.input.KeyboardType
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
-import androidx.compose.ui.viewinterop.AndroidView
+import com.rtbishop.look4sat.core.domain.cw.CwFldigiDecoder
-import androidx.constraintlayout.widget.ConstraintLayout
 import com.rtbishop.look4sat.core.domain.model.SatRadio
 import com.rtbishop.look4sat.core.domain.predict.OrbitalPos
 import com.rtbishop.look4sat.core.domain.utility.DopplerFrequencyCalculator
 import com.rtbishop.look4sat.core.presentation.CardButton
+import kotlin.math.roundToInt
 import com.rtbishop.look4sat.core.presentation.R
 import com.rtbishop.look4sat.core.presentation.formatFrequency
 import com.rtbishop.look4sat.core.presentation.infiniteMarquee
-import com.rtbishop.look4sat.feature.cw.R as CwR
-import com.ve3nea.morse_expert.MainActivity
 import java.util.Locale
 import kotlin.time.Duration.Companion.milliseconds
 
@@ -714,33 +728,47 @@ private fun CwDecoderPanel(
         }
 
         AnimatedVisibility(visible = cw.isExpanded) {
-            // PR #1 Morse Expert engine: mini layout with waterfall + decoded text.
+            // fldigi engine: pure Compose panel (waterfall + decoded text).
-            // Keep the old Kotlin decoder state/actions as fallback code, but this panel no longer feeds it.
             val context = LocalContext.current
-            val activity = remember { context as? Activity }
+            val decoder = remember { CwFldigiDecoder(initialWpm = 18) }
-            val controller = remember { MainActivity() }
+            val waterfall = remember { CwPanelWaterfallState() }
-            val rootView = remember {
-                LayoutInflater.from(context).inflate(CwR.layout.cw_panel_main, null) as ConstraintLayout
-            }
-            var initialized by remember { mutableStateOf(false) }
             var listening by remember { mutableStateOf(false) }
+            var captureJob by remember { mutableStateOf<Job?>(null) }
+            val scope = rememberCoroutineScope()
+
+            val decodedText by decoder.decodedTextFlow.collectAsState()
+            val signalStrength by decoder.signalStrength.collectAsState()
+
+            fun startPanelCapture() {
+                if (!cw.hasPermission) {
+                    requestMicPermission()
+                    return
+                }
+                captureJob?.cancel()
+                captureJob = scope.launch(Dispatchers.IO) {
+                    val capture = CwPanelMicCapture()
+                    capture.audioFlow().collect { chunk ->
+                        if (!isActive) return@collect
+                        decoder.processBuffer(chunk)
+                        waterfall.pushSamples(chunk)
+                    }
+                }
+                listening = true
+            }
+
+            fun stopPanelCapture() {
+                captureJob?.cancel()
+                captureJob = null
+                listening = false
+            }
 
             DisposableEffect(Unit) {
-                if (activity != null) {
+                onDispose { stopPanelCapture() }
-                    controller.onCreate(activity, rootView, false)
-                }
-                onDispose {
-                    controller.onPause()
-                    controller.onDestroy()
-                }
             }
 
             LaunchedEffect(cw.hasPermission) {
-                if (cw.hasPermission && !initialized) {
+                if (cw.hasPermission && !listening) {
-                    controller.onPermissionGranted()
+                    startPanelCapture()
-                    controller.onResume()
-                    initialized = true
-                    listening = true
                 }
             }
 
@@ -751,48 +779,61 @@ private fun CwDecoderPanel(
                 ) {
                     if (!listening) {
                         Button(
-                            onClick = {
+                            onClick = { startPanelCapture() },
-                                if (!cw.hasPermission) {
-                                    requestMicPermission()
-                                } else if (!initialized) {
-                                    controller.onPermissionGranted()
-                                    controller.onResume()
-                                    initialized = true
-                                    listening = true
-                                } else {
-                                    controller.onResume()
-                                    listening = true
-                                }
-                            },
                             modifier = Modifier.weight(1f)
                         ) {
                             Text(stringResource(R.string.radar_cw_start))
                         }
                     } else {
                         Button(
-                            onClick = {
+                            onClick = { stopPanelCapture() },
-                                controller.onPause()
-                                listening = false
-                            },
                             modifier = Modifier.weight(1f)
                         ) {
                             Text(stringResource(R.string.radar_cw_stop))
                         }
                     }
                     OutlinedButton(
-                        onClick = { controller.clearDecoded() },
+                        onClick = { decoder.resetDecoder(); waterfall.reset() },
                         modifier = Modifier.weight(1f)
                     ) {
                         Text(stringResource(R.string.radar_cw_reset))
                     }
                 }
 
-                AndroidView(
+                Box(
-                    factory = { rootView },
                     modifier = Modifier
                         .fillMaxWidth()
-                        .height(150.dp)
+                        .height(90.dp)
+                        .clip(RoundedCornerShape(8.dp))
+                ) {
+                    CwPanelWaterfallView(state = waterfall)
+                }
+
+                Text(
+                    text = decodedText.takeLast(120),
+                    fontSize = 14.sp,
+                    fontFamily = FontFamily.Monospace,
+                    color = MaterialTheme.colorScheme.onSurface,
+                    maxLines = 2,
+                    overflow = TextOverflow.Ellipsis,
+                    modifier = Modifier.fillMaxWidth()
                 )
+
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.spacedBy(12.dp)
+                ) {
+                    Text(
+                        text = if (listening) "● ACTIVE" else "○ IDLE",
+                        fontSize = 12.sp,
+                        color = if (listening) Color(0xFF4CAF50) else MaterialTheme.colorScheme.outline
+                    )
+                    Text(
+                        text = "LEVEL ${(signalStrength * 100).roundToInt()}%",
+                        fontSize = 12.sp,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant
+                    )
+                }
             }
         }
     }
@@ -821,3 +862,170 @@ private fun transceiverTitle(radio: SatRadio): String {
 
 private val FREQ_ADJUSTMENTS =
     listOf(-10_000L to "-10k", -1_000L to "-1k", -100L to "-100", 100L to "+100", 1_000L to "+1k", 10_000L to "+10k")
+
+// --- CW panel components (fldigi engine, pure Compose) ---
+
+/** Microphone capture at 8000 Hz mono PCM float (fldigi sample rate). */
+private class CwPanelMicCapture {
+    private val sampleRate = 8000
+    private val channelConfig = AudioFormat.CHANNEL_IN_MONO
+    private val audioFormat = AudioFormat.ENCODING_PCM_FLOAT
+
+    fun audioFlow(): Flow<FloatArray> = flow {
+        val bufferSize = AudioRecord.getMinBufferSize(sampleRate, channelConfig, audioFormat)
+            .coerceAtLeast(sampleRate / 5)
+        val recorder = AudioRecord(
+            MediaRecorder.AudioSource.MIC,
+            sampleRate,
+            channelConfig,
+            audioFormat,
+            bufferSize * 4
+        )
+        try {
+            recorder.startRecording()
+            val chunkSize = sampleRate / 10
+            val buffer = FloatArray(chunkSize)
+            while (currentCoroutineContext().isActive) {
+                val read = recorder.read(buffer, 0, chunkSize, AudioRecord.READ_BLOCKING)
+                if (read > 0) {
+                    emit(if (read == chunkSize) buffer.copyOf() else buffer.copyOfRange(0, read))
+                }
+            }
+        } finally {
+            recorder.stop()
+            recorder.release()
+        }
+    }.flowOn(Dispatchers.IO)
+}
+
+/** Sliding spectrogram ring buffer for the CW waterfall. */
+private class CwPanelWaterfallState {
+    private val columns = 120
+    private val rows = 48
+    private val data = FloatArray(columns * rows)
+    private val pending = ArrayList<Float>(4096)
+    private val fftWindow = 512
+
+    /** Monotonic frame counter — reading this in composition triggers redraw. */
+    private val _version = androidx.compose.runtime.mutableIntStateOf(0)
+    val version: androidx.compose.runtime.State<Int> = _version
+
+    @Synchronized
+    fun pushSamples(samples: FloatArray) {
+        pending.addAll(samples.toList())
+        var frames = 0
+        while (pending.size >= fftWindow) {
+            val window = FloatArray(fftWindow) { pending[it] }
+            repeat(fftWindow) { pending.removeAt(0) }
+            val spectrum = computeSpectrum(window)
+            for (r in 0 until rows - 1) {
+                System.arraycopy(data, (r + 1) * columns, data, r * columns, columns)
+            }
+            for (c in 0 until columns) {
+                val bin = c * spectrum.size / columns
+                data[(rows - 1) * columns + c] = spectrum[bin.coerceAtMost(spectrum.size - 1)]
+            }
+            frames++
+        }
+        if (frames > 0) _version.intValue++
+    }
+
+    private fun computeSpectrum(window: FloatArray): FloatArray {
+        val n = window.size
+        val re = FloatArray(n)
+        val im = FloatArray(n)
+        for (i in 0 until n) {
+            val w = 0.5 - 0.5 * kotlin.math.cos(2.0 * Math.PI * i / (n - 1))
+            re[i] = window[i] * w.toFloat()
+        }
+        var j = 0
+        for (i in 1 until n) {
+            var bit = n shr 1
+            while (j and bit != 0) { j = j xor bit; bit = bit shr 1 }
+            j = j xor bit
+            if (i < j) {
+                val tr = re[i]; re[i] = re[j]; re[j] = tr
+                val ti = im[i]; im[i] = im[j]; im[j] = ti
+            }
+        }
+        var len = 2
+        while (len <= n) {
+            val ang = -2.0 * Math.PI / len
+            val wRe = kotlin.math.cos(ang).toFloat()
+            val wIm = kotlin.math.sin(ang).toFloat()
+            var i = 0
+            while (i < n) {
+                var curRe = 1f
+                var curIm = 0f
+                for (k in 0 until len / 2) {
+                    val uRe = re[i + k]
+                    val uIm = im[i + k]
+                    val vRe = re[i + k + len / 2] * curRe - im[i + k + len / 2] * curIm
+                    val vIm = re[i + k + len / 2] * curIm + im[i + k + len / 2] * curRe
+                    re[i + k] = uRe + vRe
+                    im[i + k] = uIm + vIm
+                    re[i + k + len / 2] = uRe - vRe
+                    im[i + k + len / 2] = uIm - vIm
+                    val nRe = curRe * wRe - curIm * wIm
+                    val nIm = curRe * wIm + curIm * wRe
+                    curRe = nRe; curIm = nIm
+                }
+                i += len
+            }
+            len = len shl 1
+        }
+        val bins = 48
+        val out = FloatArray(bins)
+        for (k in 0 until bins) {
+            out[k] = kotlin.math.sqrt(re[k] * re[k] + im[k] * im[k]) / n
+        }
+        return out
+    }
+
+    @Synchronized
+    fun getColumn(c: Int): FloatArray {
+        val col = FloatArray(rows)
+        for (r in 0 until rows) {
+            col[r] = data[r * columns + c.coerceIn(0, columns - 1)]
+        }
+        return col
+    }
+
+    @Synchronized
+    fun reset() {
+        data.fill(0f)
+        pending.clear()
+    }
+}
+
+@Composable
+private fun CwPanelWaterfallView(state: CwPanelWaterfallState) {
+    val columns = 120
+    val rows = 48
+    // Read the frame counter so the canvas redraws as new spectra arrive.
+    state.version.value
+    Canvas(
+        modifier = Modifier
+            .fillMaxSize()
+            .background(Color(0xFF0D1B2A))
+            .clip(RoundedCornerShape(8.dp))
+    ) {
+        val cellW = size.width / columns
+        val cellH = size.height / rows
+        for (c in 0 until columns) {
+            val col = state.getColumn(c)
+            for (r in 0 until rows) {
+                val v = col[r]
+                val intensity = (v * 4000f).coerceIn(0f, 255f)
+                if (intensity > 6f) {
+                    val green = (intensity * 1.3f).coerceAtMost(255f)
+                    drawRect(
+                        color = Color(0f, green / 255f, 0f, 1f),
+                        topLeft = Offset(c * cellW, r * cellH),
+                        size = Size(cellW + 0.5f, cellH + 0.5f)
+                    )
+                }
+            }
+        }
+    }
+}

gradle/libs.versions.toml

@@ -1,8 +1,8 @@
 [versions]
 #noinspection UnusedVersionCatalogEntry
-appVersionCode = "458"
+appVersionCode = "459"
 #noinspection UnusedVersionCatalogEntry
-appVersionName = "4.5.5"
+appVersionName = "4.5.6"
 #noinspection UnusedVersionCatalogEntry
 compileSdk = "37"
 #noinspection UnusedVersionCatalogEntry