portapack-mayhem/firmware/application/external/spainter/ui_spectrum_painter.cpp

/*
 * Copyright (C) 2023 Bernd Herzog
 *
 * This file is part of PortaPack.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street,
 * Boston, MA 02110-1301, USA.
 */

#include "ui_spectrum_painter.hpp"

#include "bmp.hpp"
#include "baseband_api.hpp"
#include "file.hpp"
#include "io_file.hpp"
#include "portapack_persistent_memory.hpp"
#include "ui_fileman.hpp"
#include "ui_freqman.hpp"

using namespace portapack;

namespace ui::external_app::spainter {

SpectrumPainterView::SpectrumPainterView(
    NavigationView& nav)
    : nav_(nav) {
    // baseband::run_image(spi_flash::image_tag_spectrum_painter);
    baseband::run_prepared_image(portapack::memory::map::m4_code.base());

    add_children({
        &labels,
        &tab_view,
        &input_image,
        &input_text,
        &progressbar,
        &field_frequency,
        &field_rfgain,
        &field_rfamp,
        &check_loop,
        &button_play,
        &option_bandwidth,
        &field_duration,
        &field_pause,
    });

    Rect view_rect = {0, 3 * 8, 240, 80};
    input_image.set_parent_rect(view_rect);
    input_text.set_parent_rect(view_rect);

    freqman_set_bandwidth_option(SPEC_MODULATION, option_bandwidth);

    field_frequency.set_step(5000);

    tx_gain = transmitter_model.tx_gain();
    field_rfgain.set_value(tx_gain);              // Initial default  value (-12 dB's max ).
    field_rfgain.on_change = [this](int32_t v) {  // allow initial value change just after opened file.
        tx_gain = v;
        transmitter_model.set_tx_gain(tx_gain);
    };

    field_rfamp.set_value(rf_amp ? 14 : 0);      // Initial default value True. (TX RF amp on , +14dB's)
    field_rfamp.on_change = [this](int32_t v) {  // allow initial value change just after opened file.
        rf_amp = (bool)v;
        transmitter_model.set_rf_amp(rf_amp);
    };

    input_image.on_input_available = [this]() {
        image_input_available = true;
    };

    button_play.on_select = [this](ImageButton&) {
        if (tx_active == false) {
            tx_mode = tab_view.selected();

            if (tx_mode == 0 && image_input_available == false)
                return;
            /* By experimental test measurement, we got a good painted spectrum quality when selecting
            a BW GUI App range from 100k ... 2M aprox. In that range , the best TX LPF filter = 1M75 (the min)
            With this min TX LPF filter , we minimized the harmonics aliasing multipicture overlapped.
            So original fw 1.7.4., was already selecting the best setting (1M75)  */
            transmitter_model.set_baseband_bandwidth(1'750'000);  // Already tested, is the best setting for this App.
            transmitter_model.enable();

            if (persistent_memory::stealth_mode()) {
                DisplaySleepMessage message;
                EventDispatcher::send_message(message);
            }

            button_play.set_bitmap(&bitmap_stop);

            if (tx_mode == 0) {
                tx_current_max_lines = input_image.get_height();
                tx_current_width = input_image.get_width();
            } else {
                tx_current_max_lines = input_text.get_height();
                tx_current_width = input_text.get_width();
            }

            progressbar.set_max(tx_current_max_lines);
            progressbar.set_value(0);

            baseband::set_spectrum_painter_config(tx_current_width, tx_current_max_lines, false, option_bandwidth.selected_index_value());
        } else {
            stop_tx();
        }
    };

    option_bandwidth.on_change = [this](size_t, ui::OptionsField::value_t value) {
        baseband::set_spectrum_painter_config(tx_current_width, tx_current_max_lines, true, value);
    };

    field_duration.set_value(10);
    field_pause.set_value(5);
}

void SpectrumPainterView::start_tx() {
    tx_current_line = 0;
    tx_active = true;
    tx_timestamp_start = chTimeNow();
}

void SpectrumPainterView::stop_tx() {
    button_play.set_bitmap(&bitmap_play);
    transmitter_model.disable();
    tx_active = false;
    tx_current_line = 0;
}

void SpectrumPainterView::frame_sync() {
    if (tx_active) {
        if (fifo->is_empty()) {
            int32_t sequence_duration = (field_duration.value() + (check_loop.value() ? field_pause.value() : 0)) * 1000;
            int32_t sequence_time = tx_time_elapsed() % sequence_duration;
            bool is_pausing = sequence_time > field_duration.value() * 1000;

            if (is_pausing) {
                fifo->in(std::vector<uint8_t>(tx_current_width));
            } else {
                auto current_time_line = sequence_time * tx_current_max_lines / (field_duration.value() * 1000);

                if (tx_current_line > current_time_line && !check_loop.value()) {
                    fifo->in(std::vector<uint8_t>(tx_current_width));
                    stop_tx();
                    return;
                }

                tx_current_line = current_time_line;
                progressbar.set_value(current_time_line);

                if (tx_mode == 0) {
                    std::vector<uint8_t> line = input_image.get_line(current_time_line);
                    fifo->in(line);
                } else {
                    std::vector<uint8_t> line = input_text.get_line(current_time_line);
                    fifo->in(line);
                }
            }
        }
    }
}

SpectrumPainterView::~SpectrumPainterView() {
    transmitter_model.disable();
    baseband::shutdown();
}

void SpectrumPainterView::focus() {
    tab_view.focus();
}

void SpectrumPainterView::paint(Painter& painter) {
    View::paint(painter);

    size_t c;
    Point pos = {0, screen_pos().y() + 8 + footer_location};

    for (c = 0; c < 20; c++) {
        painter.draw_bitmap(
            pos,
            bitmap_stripes,
            Theme::getInstance()->fg_yellow->foreground,
            Theme::getInstance()->fg_yellow->background);
        if (c != 9)
            pos += {24, 0};
        else
            pos = {0, screen_pos().y() + 8 + footer_location + 32 + 8};
    }
}

}  // namespace ui::external_app::spainter