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bad sound in correct place

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This commit is contained in:
Stepan Usatiuk
2025-10-13 22:02:55 +02:00
parent cc805abe80
commit 5e63875d35
1 changed files with 28 additions and 29 deletions
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57
Firmware/sdk/apps/gameboy/src/gameboy_app.cpp
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@@ -306,6 +306,34 @@ public:
gb_run_frame(&gb); gb_run_frame(&gb);
GB_PERF_ONLY(perf.runUs = nowMicros() - runStartUs;) GB_PERF_ONLY(perf.runUs = nowMicros() - runStartUs;)
{
uint32_t freqHz = 0;
uint8_t loud = 0;
if (apu.computeEffectiveTone(freqHz, loud)) {
// Basic smoothing: if freq didn't change much, keep it; otherwise snap quickly
const uint32_t prev = lastFreqHz;
if (prev != 0 && freqHz != 0) {
const uint32_t diff = (prev > freqHz) ? (prev - freqHz) : (freqHz - prev);
if (diff < 15) {
freqHz = prev; // minor jitter suppression
++stableFrames;
} else {
stableFrames = 0;
}
} else {
stableFrames = 0;
}
lastFreqHz = freqHz;
lastLoud = loud;
const uint32_t durMs = 16;
playTone(freqHz, durMs, 0);
} else {
lastFreqHz = 0;
lastLoud = 0;
// Don't enqueue anything; queue naturally drains and buzzer stops
}
}
GB_PERF_ONLY(const uint64_t renderStartUs = nowMicros();) GB_PERF_ONLY(const uint64_t renderStartUs = nowMicros();)
renderGameFrame(); renderGameFrame();
GB_PERF_ONLY(perf.renderUs = nowMicros() - renderStartUs;) GB_PERF_ONLY(perf.renderUs = nowMicros() - renderStartUs;)
@@ -1926,35 +1954,6 @@ private:
drawLineOriginal(*self, pixels, static_cast<int>(line)); drawLineOriginal(*self, pixels, static_cast<int>(line));
break; break;
} }
// Simple per-scanline hook: at end of last line, decide tone for the frame.
if (line + 1 == LCD_HEIGHT) {
uint32_t freqHz = 0;
uint8_t loud = 0;
if (self->apu.computeEffectiveTone(freqHz, loud)) {
// Basic smoothing: if freq didn't change much, keep it; otherwise snap quickly
const uint32_t prev = self->lastFreqHz;
if (prev != 0 && freqHz != 0) {
const uint32_t diff = (prev > freqHz) ? (prev - freqHz) : (freqHz - prev);
if (diff < 15) {
freqHz = prev; // minor jitter suppression
++self->stableFrames;
} else {
self->stableFrames = 0;
}
} else {
self->stableFrames = 0;
}
self->lastFreqHz = freqHz;
self->lastLoud = loud;
const uint32_t durMs = 17;
self->playTone(freqHz, durMs, 0);
} else {
self->lastFreqHz = 0;
self->lastLoud = 0;
// Don't enqueue anything; queue naturally drains and buzzer stops
}
}
} }
static const char* initErrorToString(enum gb_init_error_e err) { static const char* initErrorToString(enum gb_init_error_e err) {