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Memory management improv.

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This commit is contained in:
Totoo
2026-04-30 15:00:19 +02:00
committed by GitHub
parent ab986a0378
commit 2bacbc80a8
26 changed files with 365 additions and 410 deletions
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firmware/application/external/time_sink/ui_time_sink.cpp
Vendored
+11 -10
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@@ -33,7 +33,7 @@ namespace ui::external_app::time_sink {
TimeSinkWaveformWidget::TimeSinkWaveformWidget(
Rect parent_rect,
const int16_t* data,
const int8_t* data,
size_t length,
Color color)
: Widget{parent_rect},
@@ -71,10 +71,10 @@ void TimeSinkWaveformWidget::set_persistence_frames(uint8_t frames) {
}
}
Coord TimeSinkWaveformWidget::sample_to_y(const Rect& r, int16_t sample) const {
Coord TimeSinkWaveformWidget::sample_to_y(const Rect& r, int8_t sample) const {
const int32_t y_center = r.top() + (r.height() / 2);
const int32_t y_span = std::max<int32_t>(1, r.height() - 1);
const int32_t y = y_center - (static_cast<int32_t>(sample) * y_span) / 65536;
const int32_t y = y_center - (static_cast<int32_t>(sample) * y_span) / 256;
return static_cast<Coord>(std::clamp<int32_t>(y, r.top(), r.bottom() - 1));
}
@@ -115,7 +115,6 @@ void TimeSinkWaveformWidget::paint(Painter& painter) {
current_y_[x] = sample_to_y(r, data_[src_index]);
}
// Draw first, then erase stale pixels so the trace never disappears mid-refresh.
for (size_t x = 0; x < columns; ++x) {
display.draw_pixel(
{static_cast<Coord>(r.left() + x), current_y_[x]},
@@ -126,13 +125,13 @@ void TimeSinkWaveformWidget::paint(Painter& painter) {
const size_t expired_slot = history_head_;
for (size_t x = 0; x < columns; ++x) {
const auto expired_y = history_y_[expired_slot][x];
const auto expired_y = sample_to_y(r, history_samples_[expired_slot][x]);
bool keep = (expired_y == current_y_[x]);
if (!keep) {
for (size_t i = 1; i < history_count_; ++i) {
const size_t slot = (history_head_ + i) % max_persistence_frames;
if (history_y_[slot][x] == expired_y) {
if (sample_to_y(r, history_samples_[slot][x]) == expired_y) {
keep = true;
break;
}
@@ -151,7 +150,10 @@ void TimeSinkWaveformWidget::paint(Painter& painter) {
}
const size_t tail_slot = (history_head_ + history_count_) % max_persistence_frames;
std::copy_n(current_y_.begin(), columns, history_y_[tail_slot].begin());
for (size_t x = 0; x < columns; ++x) {
const size_t src_index = (x * length_) / columns;
history_samples_[tail_slot][x] = data_[src_index];
}
++history_count_;
}
@@ -338,8 +340,7 @@ void TimeSinkView::on_channel_spectrum(const ChannelSpectrum& spectrum) {
const size_t src_index =
(trigger_index + offset) % source_count;
const int32_t centered = static_cast<int32_t>(spectrum.db[src_index]) - 128;
const int32_t scaled = centered * 256;
waveform_buffer[x] = static_cast<int16_t>(std::clamp<int32_t>(scaled, -32768, 32767));
waveform_buffer[x] = static_cast<int8_t>(std::clamp<int32_t>(centered, -128, 127));
}
waveform.set_dirty();
@@ -349,4 +350,4 @@ void TimeSinkView::on_freqchg(int64_t freq) {
field_frequency.set_value(freq);
}
} // namespace ui::external_app::time_sink
} // namespace ui::external_app::time_sink