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code cleaning, fast and slow mode adjustement, dc pixels displayed (#1137)

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* code cleaning, fast and slow mode adjustement, dc pixels displayed

* factorisation, comments

* adjusting offsets for alignement

* indent

---------

Co-authored-by: GullCode <gullradriel@hotmail.com>
This commit is contained in:
gullradriel 2023-06-09 17:13:44 +02:00 committed by GitHub
parent b9de1918b4
commit db81b9b1e1
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 44 additions and 53 deletions
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92
firmware/application/apps/ui_looking_glass_app.cpp
View File

@ -66,7 +66,7 @@ rf::Frequency GlassView::get_freq_from_bin_pos(uint8_t pos) {
// starting from the middle, minus 8 ignored bin on each side. Since pos is [-120,120] after the (pos - 120), it's divided by SCREEN_W(240)/2 => 120
freq_at_pos = f_center_ini + ((pos - 120) * ((looking_glass_range - ((16 * looking_glass_range) / SPEC_NB_BINS)) / 2)) / (SCREEN_W / 2);
} else
freq_at_pos = f_min - (offset * each_bin_size) + (pos * looking_glass_range) / SCREEN_W;
freq_at_pos = f_min + (pos * looking_glass_range) / SCREEN_W;
return freq_at_pos;
}
@ -77,23 +77,6 @@ void GlassView::on_marker_change() {
PlotMarker(marker_pixel_index); // Refresh marker on screen
}
// Returns the next multiple of num that is a multiple of multiplier
int64_t GlassView::next_mult_of(int64_t num, int64_t multiplier) {
return ((num / multiplier) + 1) * multiplier;
}
void GlassView::adjust_range(int64_t* f_min, int64_t* f_max, int64_t width) {
int64_t span = *f_max - *f_min;
int64_t num_intervals = span / width;
if (span % width != 0) {
num_intervals++;
}
int64_t new_span = num_intervals * width;
int64_t delta_span = (new_span - span) / 2;
*f_min -= delta_span;
*f_max += delta_span;
}
void GlassView::retune() {
// Start a new sweep.
// Tune rx for this new slice directly because the model
@ -166,6 +149,31 @@ void GlassView::add_spectrum_pixel(uint8_t power) {
}
}
bool GlassView::process_bins(uint8_t* powerlevel) {
bins_Hz_size += each_bin_size; // add the ignored DC spike to "pixel fulfilled bag of Hz"
if (bins_Hz_size >= marker_pixel_step) // new pixel fullfilled
{
if (*powerlevel > min_color_power)
add_spectrum_pixel(*powerlevel); // Pixel will represent max_power
else
add_spectrum_pixel(0); // Filtered out, show black
*powerlevel = 0;
if (!pixel_index) // Received indication that a waterfall line has been completed
{
bins_Hz_size = 0; // Since this is an entire pixel line, we don't carry "Pixels into next bin"
if (mode != LOOKING_GLASS_SINGLEPASS) {
f_center = f_center_ini;
retune();
} else
baseband::spectrum_streaming_start();
return true; // signal a new line
}
bins_Hz_size -= marker_pixel_step; // reset bins size, but carrying the eventual excess Hz into next pixel
}
return false;
}
// Apparently, the spectrum object returns an array of SPEC_NB_BINS (256) bins
// Each having the radio signal power for it's corresponding frequency slot
void GlassView::on_channel_spectrum(const ChannelSpectrum& spectrum) {
@ -174,31 +182,19 @@ void GlassView::on_channel_spectrum(const ChannelSpectrum& spectrum) {
// we actually need SCREEN_W (240) of those bins
for (bin = 0; bin < bin_length; bin++) {
get_max_power(spectrum, bin, max_power);
if (ignore_dc && bin == 119) {
bins_Hz_size += 12 * each_bin_size; // add the ignored DC spike to "pixel fulfilled bag of Hz"
}
bins_Hz_size += each_bin_size; // add this bin Hz count into the "pixel fulfilled bag of Hz"
if (bins_Hz_size >= marker_pixel_step) // new pixel fullfilled
{
if (min_color_power < max_power)
add_spectrum_pixel(max_power); // Pixel will represent max_power
else
add_spectrum_pixel(0); // Filtered out, show black
max_power = 0;
if (!pixel_index) // Received indication that a waterfall line has been completed
{
bins_Hz_size = 0; // Since this is an entire pixel line, we don't carry "Pixels into next bin"
if (mode != LOOKING_GLASS_SINGLEPASS) {
f_center = f_center_ini;
retune();
} else
baseband::spectrum_streaming_start();
return; // signal a new line
// process dc spike if enable
if (bin == 119) {
uint8_t next_max_power = 0;
get_max_power(spectrum, bin + 1, next_max_power);
for (uint8_t it = 0; it < ignore_dc; it++) {
uint8_t med_max_power = (max_power + next_max_power) / 2; // due to the way process_bins works we have to keep resetting the color
if (process_bins(&med_max_power) == true)
return; // new line signaled, return
}
bins_Hz_size -= marker_pixel_step; // reset bins size, but carrying the eventual excess Hz into next pixel
}
// process actual bin
if (process_bins(&max_power) == true)
return; // new line signaled, return
}
if (mode != LOOKING_GLASS_SINGLEPASS) {
f_center += looking_glass_step;
@ -225,8 +221,6 @@ void GlassView::on_range_changed() {
f_max = f_max * MHZ_DIV;
looking_glass_range = f_max - f_min;
if (looking_glass_range <= LOOKING_GLASS_SLICE_WIDTH_MAX) {
adjust_range(&f_min, &f_max, SCREEN_W);
looking_glass_range = f_max - f_min;
// if the view is done in one pass, show it like in analog_audio_app
mode = LOOKING_GLASS_SINGLEPASS;
offset = 0;
@ -237,24 +231,22 @@ void GlassView::on_range_changed() {
each_bin_size = looking_glass_bandwidth / SCREEN_W;
looking_glass_step = looking_glass_bandwidth;
f_center_ini = f_min + (looking_glass_bandwidth / 2); // Initial center frequency for sweep
} else { // if ( mode == LOOKING_GLASS_SLOWSCAN || mode == LOOKING_GLASS_FASTSCAN )
} else {
// view is made in multiple pass, use original bin picking
mode = scan_type.selected_index_value();
if (mode == LOOKING_GLASS_FASTSCAN) {
offset = 2;
offset = 8;
ignore_dc = SPEC_NB_BINS - SCREEN_W - offset;
bin_length = SCREEN_W;
ignore_dc = 1;
} else { // if( mode == LOOKING_GLASS_SLOWSCAN )
offset = 16;
offset = 132;
bin_length = 80;
ignore_dc = 0;
}
adjust_range(&f_min, &f_max, SCREEN_W);
looking_glass_range = f_max - f_min;
looking_glass_bandwidth = LOOKING_GLASS_SLICE_WIDTH_MAX;
looking_glass_sampling_rate = LOOKING_GLASS_SLICE_WIDTH_MAX;
each_bin_size = LOOKING_GLASS_SLICE_WIDTH_MAX / SPEC_NB_BINS;
looking_glass_step = (bin_length + (ignore_dc * 12)) * each_bin_size;
looking_glass_step = (bin_length + ignore_dc) * each_bin_size;
f_center_ini = f_min - (offset * each_bin_size) + (looking_glass_bandwidth / 2); // Initial center frequency for sweep
}
search_span = looking_glass_range / MHZ_DIV;

5
firmware/application/apps/ui_looking_glass_app.hpp
View File

@ -37,6 +37,7 @@
#include "spectrum_color_lut.hpp"
namespace ui {
#define LOOKING_GLASS_SLICE_WIDTH_MAX 20000000
#define MHZ_DIV 1000000
@ -81,10 +82,8 @@ class GlassView : public View {
void get_max_power(const ChannelSpectrum& spectrum, uint8_t bin, uint8_t& max_power);
rf::Frequency get_freq_from_bin_pos(uint8_t pos);
void on_marker_change();
int64_t next_mult_of(int64_t num, int64_t multiplier);
void adjust_range(int64_t* f_min, int64_t* f_max, int64_t width);
void retune();
bool move_to_next_position();
bool process_bins(uint8_t* powerlevel);
void on_channel_spectrum(const ChannelSpectrum& spectrum);
void do_timers();
void on_range_changed();