mirror of
https://github.com/UberGuidoZ/Flipper.git
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98 lines
3.7 KiB
C
98 lines
3.7 KiB
C
/* Copyright (C) 2022-2023 Salvatore Sanfilippo -- All Rights Reserved
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* See the LICENSE file for information about the license. */
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#include "app.h"
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/* Render the received signal.
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*
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* The screen of the flipper is 128 x 64. Even using 4 pixels per line
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* (where low level signal is one pixel high, high level is 4 pixels
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* high) and 4 pixels of spacing between the different lines, we can
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* plot comfortably 8 lines.
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*
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* The 'idx' argument is the first sample to render in the circular
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* buffer. */
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void render_signal(ProtoViewApp *app, Canvas *const canvas, RawSamplesBuffer *buf, uint32_t idx) {
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canvas_set_color(canvas, ColorBlack);
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int rows = 8;
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uint32_t time_per_pixel = app->us_scale;
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uint32_t start_idx = idx;
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bool level = 0;
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uint32_t dur = 0, sample_num = 0;
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for (int row = 0; row < rows ; row++) {
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for (int x = 0; x < 128; x++) {
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int y = 3 + row*8;
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if (dur < time_per_pixel/2) {
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/* Get more data. */
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raw_samples_get(buf, idx++, &level, &dur);
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sample_num++;
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}
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canvas_draw_line(canvas, x,y,x,y-(level*3));
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/* Write a small triangle under the last sample detected. */
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if (app->signal_bestlen != 0 &&
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sample_num+start_idx == app->signal_bestlen+1)
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{
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canvas_draw_dot(canvas,x,y+2);
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canvas_draw_dot(canvas,x-1,y+3);
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canvas_draw_dot(canvas,x,y+3);
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canvas_draw_dot(canvas,x+1,y+3);
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sample_num++; /* Make sure we don't mark the next, too. */
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}
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/* Remove from the current level duration the time we
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* just plot. */
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if (dur > time_per_pixel)
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dur -= time_per_pixel;
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else
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dur = 0;
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}
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}
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}
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/* Raw pulses rendering. This is our default view. */
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void render_view_raw_pulses(Canvas *const canvas, ProtoViewApp *app) {
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/* Show signal. */
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render_signal(app, canvas, DetectedSamples, app->signal_offset);
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/* Show signal information. */
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char buf[64];
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snprintf(buf,sizeof(buf),"%luus",
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(unsigned long)DetectedSamples->short_pulse_dur);
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canvas_set_font(canvas, FontSecondary);
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canvas_draw_str_with_border(canvas, 97, 63, buf, ColorWhite, ColorBlack);
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if (app->signal_decoded) {
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canvas_set_font(canvas, FontPrimary);
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canvas_draw_str_with_border(canvas, 1, 61, app->signal_info.name, ColorWhite, ColorBlack);
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}
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}
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/* Handle input for the raw pulses view. */
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void process_input_raw_pulses(ProtoViewApp *app, InputEvent input) {
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if (input.type == InputTypeRepeat) {
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/* Handle panning of the signal window. Long pressing
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* right will show successive samples, long pressing left
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* previous samples. */
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if (input.key == InputKeyRight) app->signal_offset++;
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else if (input.key == InputKeyLeft) app->signal_offset--;
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else if (input.key == InputKeyOk) {
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app->signal_offset = 0;
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app->us_scale = PROTOVIEW_RAW_VIEW_DEFAULT_SCALE;
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}
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} else if (input.type == InputTypeShort) {
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if (input.key == InputKeyOk) {
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/* Reset the current sample to capture the next. */
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reset_current_signal(app);
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} else if (input.key == InputKeyDown) {
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/* Rescaling. The set becomes finer under 50us per pixel. */
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uint32_t scale_step = app->us_scale >= 50 ? 50 : 10;
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if (app->us_scale < 500) app->us_scale += scale_step;
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} else if (input.key == InputKeyUp) {
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uint32_t scale_step = app->us_scale > 50 ? 50 : 10;
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if (app->us_scale > 10) app->us_scale -= scale_step;
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}
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}
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}
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