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furrtek
2017-11-02 17:11:26 +00:00
parent 6e7b2c751f
commit 2ec24c9fa8
11 changed files with 136 additions and 99 deletions
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firmware/application/ui_view_wav.cpp
+40 -51
View File
@@ -32,29 +32,34 @@ namespace ui {
void ViewWavView::update_scale(int32_t new_scale) {
scale = new_scale;
ns_per_pixel = (1000000000UL / wav_reader->sample_rate()) * scale;
field_pos_samples.set_step(scale);
refresh_waveform();
refresh_measurements();
}
void ViewWavView::refresh_waveform() {
int16_t sample;
for (size_t i = 0; i < 240; i++) {
wav_reader->data_seek(position + (i * scale));
wav_reader->read(&sample, 2);
waveform_buffer[i] = sample >> 8;
wav_reader->read(&waveform_buffer[i], sizeof(int16_t));
}
waveform.set_dirty();
// Window
uint64_t w_start = (position * 240) / wav_reader->sample_count();
uint64_t w_width = (scale * 240) / (wav_reader->sample_count() / 240);
display.fill_rectangle({ 0, 10 * 16 + 1, 240, 16 }, Color::black());
display.fill_rectangle({ (Coord)w_start, 21 * 8, (Dim)w_width + 1, 8 }, Color::white());
display.draw_line({ 0, 10 * 16 + 1 }, { (Coord)w_start, 21 * 8 }, Color::white());
display.draw_line({ 239, 10 * 16 + 1 }, { (Coord)(w_start + w_width), 21 * 8 }, Color::white());
}
void ViewWavView::refresh_measurements() {
uint64_t span_ns = ns_per_pixel * abs(field_cursor_b.value() - field_cursor_a.value());
if (span_ns)
text_delta.set(to_string_dec_uint(span_ns / 1000) + "us (" + to_string_dec_uint(1000000000UL / span_ns) + "Hz)");
text_delta.set(unit_auto_scale(span_ns, 0, 3) + "s (" + to_string_dec_uint(1000000000UL / span_ns) + "Hz)");
else
text_delta.set("0us ?Hz");
//waveform.set_dirty();
set_dirty();
}
void ViewWavView::paint(Painter& painter) {
@@ -62,22 +67,9 @@ void ViewWavView::paint(Painter& painter) {
painter.draw_hline({ 0, 6 * 16 - 1 }, 240, Color::grey());
painter.draw_hline({ 0, 10 * 16 }, 240, Color::grey());
// 0~127 to 0~15 color index
// Overall amplitude view, 0~127 to 0~255 color index
for (size_t i = 0; i < 240; i++)
painter.draw_vline({ (Coord)i, 11 * 16 }, 8, amplitude_colors[amplitude_buffer[i] >> 3]);
// Window
uint64_t w_start = (position * 240) / wav_reader->sample_count();
uint64_t w_width = (scale * 240) / (wav_reader->sample_count() / 240);
painter.fill_rectangle({ 0, 10 * 16 + 1, 240, 16 }, Color::black());
painter.fill_rectangle({ (Coord)w_start, 21 * 8, (Dim)w_width + 1, 8 }, Color::white());
display.draw_line({ 0, 10 * 16 + 1 }, { (Coord)w_start, 21 * 8 }, Color::white());
display.draw_line({ 239, 10 * 16 + 1 }, { (Coord)(w_start + w_width), 21 * 8 }, Color::white());
// Cursors
painter.fill_rectangle({ 0, 6 * 16 - 8, 240, 7 }, Color::black());
painter.draw_vline({ (Coord)field_cursor_a.value(), 11 * 8 }, 7, Color::cyan());
painter.draw_vline({ (Coord)field_cursor_b.value(), 11 * 8 }, 7, Color::magenta());
painter.draw_vline({ (Coord)i, 11 * 16 }, 8, spectrum_rgb2_lut[amplitude_buffer[i] << 1]);
}
void ViewWavView::on_pos_changed() {
@@ -101,7 +93,7 @@ void ViewWavView::load_wav(std::filesystem::path file_path) {
text_filename.set(file_path.filename().string());
auto ms_duration = wav_reader->ms_duration();
text_duration.set(to_string_dec_uint(ms_duration / 1000) + "s" + to_string_dec_uint(ms_duration % 1000) + "ms");
text_duration.set(unit_auto_scale(ms_duration, 2, 3) + "s");
wav_reader->rewind();
@@ -117,13 +109,7 @@ void ViewWavView::load_wav(std::filesystem::path file_path) {
for (size_t s = 0; s < subsampling_factor; s++) {
wav_reader->data_seek(((i * subsampling_factor) + s) * skip);
wav_reader->read(&sample, 2);
if (sample < 0)
sample = -sample;
sample >>= 8;
average += sample;
average += (abs(sample) >> 8);
}
amplitude_buffer[i] = average / subsampling_factor;
@@ -135,18 +121,10 @@ void ViewWavView::load_wav(std::filesystem::path file_path) {
void ViewWavView::reset_controls() {
field_scale.set_value(1);
field_scale.on_change = [this](int32_t value) {
update_scale(value);
};
field_pos_seconds.set_value(0);
field_pos_seconds.on_change = [this](int32_t) {
on_pos_changed();
};
field_pos_samples.set_value(0);
field_pos_samples.on_change = [this](int32_t) {
on_pos_changed();
};
field_cursor_a.set_value(0);
field_cursor_b.set_value(0);
}
ViewWavView::ViewWavView(
@@ -175,19 +153,30 @@ ViewWavView::ViewWavView(
auto open_view = nav.push<FileLoadView>();
open_view->on_changed = [this](std::filesystem::path file_path) {
load_wav(file_path);
field_pos_seconds.focus();
};
};
reset_controls();
field_scale.on_change = [this](int32_t value) {
update_scale(value);
};
field_pos_seconds.on_change = [this](int32_t) {
on_pos_changed();
};
field_pos_samples.on_change = [this](int32_t) {
on_pos_changed();
};
field_cursor_a.set_value(0);
field_cursor_a.on_change = [this](int32_t) {
refresh_waveform();
field_cursor_a.on_change = [this](int32_t v) {
waveform.set_cursor(0, v);
refresh_measurements();
};
field_cursor_b.set_value(0);
field_cursor_b.on_change = [this](int32_t) {
refresh_waveform();
field_cursor_b.on_change = [this](int32_t v) {
waveform.set_cursor(1, v);
refresh_measurements();
};
reset_controls();
}
void ViewWavView::focus() {