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Added an audio FFT view in Wideband FM receive

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Tried speeding up fill_rectangle for clearing the waveform widget
This commit is contained in:
furrtek 2018-05-21 18:46:48 +01:00
parent b11c3c94b6
commit b813b32593
19 changed files with 259 additions and 38 deletions
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23
firmware/common/ui_widget.cpp
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@ -1493,6 +1493,7 @@ Waveform::Waveform(
color_ { color }
{
//set_focusable(false);
//previous_data.resize(length_, 0);
}
void Waveform::set_cursor(const uint32_t i, const int16_t position) {
@ -1522,19 +1523,31 @@ void Waveform::set_length(const uint32_t new_length) {
void Waveform::paint(Painter& painter) {
size_t n;
Coord y, y_offset = screen_rect().location().y();
Coord prev_x = screen_rect().location().x(), prev_y;
Coord prev_x, prev_y;
float x, x_inc;
Dim h = screen_rect().size().height();
const float y_scale = (float)(h - 1) / 65536.0;
int16_t * data_start = data_ + offset_;
// Clear
painter.fill_rectangle(screen_rect(), Color::black());
if (!length_) return;
x_inc = (float)screen_rect().size().width() / length_;
// Clear
painter.fill_rectangle_unrolled8(screen_rect(), Color::black());
/*prev_x = screen_rect().location().x();
prev_y = previous_data[0];
x = prev_x + x_inc;
for (n = 1; n < length_; n++) {
y = previous_data[n];
display.draw_line( {prev_x, prev_y}, {(Coord)x, y}, Color::black());
prev_x = x;
prev_y = y;
x += x_inc;
}*/
prev_x = screen_rect().location().x();
if (digital_) {
// Digital waveform: each value is an horizontal line
x = 0;
@ -1557,8 +1570,10 @@ void Waveform::paint(Painter& painter) {
x = prev_x + x_inc;
h /= 2;
prev_y = y_offset + h - (*(data_start++) * y_scale);
//previous_data[0] = prev_y;
for (n = 1; n < length_; n++) {
y = y_offset + h - (*(data_start++) * y_scale);
//previous_data[n] = y;
display.draw_line( {prev_x, prev_y}, {(Coord)x, y}, color_);
prev_x = x;