shotty project start
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commit
eb12f2004c
11
.gitignore
vendored
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11
.gitignore
vendored
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build/
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*.kdevelop
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*.kdevelop.pcs
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*.kdevses
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# Test Modules
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*.mod
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*.xm
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*.s3m
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*.it
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9
CMakeLists.txt
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9
CMakeLists.txt
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cmake_minimum_required(VERSION 3.0)
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project(trakker)
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SET(CMAKE_CXX_STANDARD 17)
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SET(CMAKE_CXX_STANDARD_REQUIRED True)
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find_package(ALSA REQUIRED)
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#find_package(xmp REQUIRED)
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find_package(Curses REQUIRED)
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add_subdirectory(src)
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install(TARGETS trakker RUNTIME DESTINATION bin)
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13
README.md
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13
README.md
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# trakker
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Trakker is a simple ncurses-based module player that displays the tracker interface on playback. It uses the libxmp library and supports any file it does.
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Controls:
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|-|-|
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Left Arrow | Move channels left
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Right Arrow | Move channels right
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Up Arrow | Seek back a pattern
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Down Arrow | Seek forward a pattern
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Plus (+) | Volume Up
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Minus (-) | Volume Down
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1-4 | Change amount to display
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Spacebar | Pause/Stop
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5
src/CMakeLists.txt
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5
src/CMakeLists.txt
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add_executable(trakker
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main.cpp
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)
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target_link_libraries(trakker PUBLIC ALSA::ALSA xmp ${CURSES_LIBRARY})
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273
src/main.cpp
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273
src/main.cpp
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <fstream>
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#include <iostream>
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#include <cstdlib>
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#include <alsa/asoundlib.h>
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#include <xmp.h>
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#include <ncurses.h>
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#define SAMPLERATE 48000
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#define BUFFER_SIZE 250000
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static char *note_name[] = { "C ", "C#", "D ", "D#", "E ", "F ", "F#", "G ", "G#", "A ", "A#", "B " };
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static char *device = "default";
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int main(int argc, char *argv[]) {
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printf("Trakker %s (with libxmp %s)\n", "v0.0.1", xmp_version);
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int adv, time, key, err, row, pos, chanoffset;
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bool looper = false;
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bool is_stopped = false;
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snd_pcm_t *handle;
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snd_pcm_sframes_t frames;
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if ((err = snd_pcm_open(&handle, device, SND_PCM_STREAM_PLAYBACK, 0)) < 0) {
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printf("Playback open error: %s\n", snd_strerror(err));
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exit(EXIT_FAILURE);
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}
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if ((err = snd_pcm_set_params(handle, SND_PCM_FORMAT_S16, SND_PCM_ACCESS_RW_INTERLEAVED, 2, SAMPLERATE, 1, BUFFER_SIZE)) < 0) {
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printf("Playback open error: %s\n", snd_strerror(err));
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exit(EXIT_FAILURE);
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}
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printf("Using Audio Driver: %s\n", "ALSA");
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xmp_context c;
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c = xmp_create_context();
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if (xmp_load_module(c, argv[1]) != 0) {
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fprintf(stderr, "Failed to load Module: %s\n", argv[1]);
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exit(EXIT_FAILURE);
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}
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struct xmp_module_info mi;
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struct xmp_frame_info fi;
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printf("Loaded module: %s\n", argv[1]);
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WINDOW *win;
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initscr();
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if (LINES < 5 || COLS < 5) {
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endwin();
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fprintf(stderr, "ncurses failed: Display is too small.\n");
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exit(EXIT_FAILURE);
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}
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if(has_colors() == FALSE) {
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endwin();
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fprintf(stderr, "ncurses failed: No color support.\n");
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exit(EXIT_FAILURE);
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}
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start_color();
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if (can_change_color() == TRUE) {
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init_color(COLOR_BLACK, 0, 0, 0);
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} else { printf("Color changing not supported!"); }
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init_pair(1, COLOR_WHITE, COLOR_BLUE); // PLAYHEAD
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cbreak();
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noecho();
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curs_set(0);
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win = newwin(LINES-2, COLS-2, 1, 1);
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keypad(win, TRUE);
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wmove(win, 0, 0);
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wprintw(win, "");
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printf("Loaded ncurses display.\n");
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refresh();
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xmp_get_module_info(c, &mi);
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// printf("%s (%s)\n", mi.mod->name, mi.mod->type);
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row = pos = -1;
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chanoffset = 0;
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xmp_start_player(c, SAMPLERATE, 0);
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// show_data(&mi);
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// for (int x = 0; x < sizeof(mi.mod->xxo); x++) {
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// std::cout << std::hex << (int)mi.mod->xxo[x] << ",";
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// }
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// std::cout << std::endl;
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int vchanoff = 0, vadv = 0;
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adv = 0;
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while (true) {
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int vol = xmp_get_player(c, XMP_PLAYER_VOLUME);
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mvprintw(0, 0, "%s %s (%s)", is_stopped?"[PAUSED]":"", mi.mod->name, mi.mod->type);
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int exa = 7+(adv*4);
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xmp_get_frame_info(c, &fi);
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if (xmp_play_frame(c) != 0 && !is_stopped) break;
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mvprintw(
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0, COLS-11,
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"%02u:%02u/%02u:%02u",
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((fi.time / 1000) / 60) % 60,
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(fi.time / 1000) % 60,
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((fi.total_time / 1000) / 60) % 60,
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(fi.total_time / 1000) % 60
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);
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wtimeout(win, 0);
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if ((key = wgetch(win)) != 0) {
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switch (key) {
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case ' ': // Pause/Play
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time = fi.time;
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is_stopped = !is_stopped;
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while(is_stopped) {
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if ((key = wgetch(win)) == ' ')
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is_stopped = !is_stopped;
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}
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break;
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case KEY_LEFT: // Move Channels Left
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if (chanoffset > 0) chanoffset--;
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break;
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case KEY_RIGHT: // Move Channels Right
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if (chanoffset < mi.mod->chn-1) chanoffset++;
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break;
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case KEY_UP: // Seek Up
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//xmp_set_position(c, fi.pos-1);
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fi.row--;
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break;
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case KEY_DOWN: // Seek Down
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//xmp_set_position(c, fi.pos+1);
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fi.row++;
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break;
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case '+':
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if (vol < 100) xmp_set_player(c, XMP_PLAYER_VOLUME, vol+=5);
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break;
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case '-':
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if (vol > 0) xmp_set_player(c, XMP_PLAYER_VOLUME, vol-=5);
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break;
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case 'l':
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looper = !looper;
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break;
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case '1': adv = 0; break;
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case '2': adv = 1; break;
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case '3': adv = 2; break;
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case '4': adv = 3; break;
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};
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}
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if (!looper && fi.loop_count > 0) break;
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if (!is_stopped) {
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frames = snd_pcm_bytes_to_frames(handle, fi.buffer_size);
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if (snd_pcm_writei(handle, fi.buffer, frames) < 0) {
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snd_pcm_prepare(handle);
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}
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}
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if (fi.pos != pos) {
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pos = fi.pos;
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row = -1;
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}
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if (!is_stopped && (fi.row != row || vchanoff != chanoffset || vadv != adv)) {
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mvprintw(
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LINES-1, 0,
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"Pos:%02x Pat:%02x/%02x VOL:%03u%% LOOP:%i +%02u/%02u VIS:%i",
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fi.pos,
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fi.pattern,
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mi.mod->pat,
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vol,
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looper?1:0,
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chanoffset,
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mi.mod->chn-1,
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adv
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);
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werase(win);
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for (int y = 0; y < LINES - 2; y++) {
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int trow = (fi.row - ((LINES - 2) / 2))+y;
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if (trow > fi.num_rows || trow < 0) { continue;}
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if (trow == fi.row) {
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wattron(win, COLOR_PAIR(1));
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wattron(win, A_BOLD);
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} else {
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wattroff(win, COLOR_PAIR(1));
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wattroff(win, A_BOLD);
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}
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wmove(win, y, 0);
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wprintw(win, "%02X", trow);
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int coff = ((COLS - 2) % exa);
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int maxcol = -1;
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for (int i = chanoffset; i < mi.mod->chn; i++) {
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if (coff+(((i-chanoffset)+1)*exa)+exa > COLS) {
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maxcol = i;
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break;
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}
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wmove(win, y, coff+((i-chanoffset)*exa)+3);
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int track = mi.mod->xxp[fi.pattern]->index[i];
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struct xmp_event event = mi.mod->xxt[track]->event[trow];
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if (i > 0 && i == chanoffset) wprintw(win, "<");
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else wprintw(win, "|");
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if (event.note > 0x80) {
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wprintw(win, "=== ");
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} else if (event.note > 0) {
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int note = event.note - 1;
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wprintw(win, "%s%d ", note_name[note % 12], note / 12);
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} else {
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wprintw(win, "--- ");
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}
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if (event.ins > 0) {
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wprintw(win, "%02X", event.ins);
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} else {
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wprintw(win, "--");
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}
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if (adv >= 1) {
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if (event.vol > 0) {
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wprintw(win, " v%02X", event.vol);
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} else {
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wprintw(win, " ---");
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}
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if (adv >= 2) {
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if (event.fxt > 0) {
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char t = event.fxt;
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char t2[0];
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if (t >= 0x0f) t = 'F' + (t - 0x0f);
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else { sprintf(t2, "%X", t); t = t2[0]; }
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wprintw(win, " %c%02X", t, event.fxp);
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} else {
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wprintw(win, " ---");
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}
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if (adv >= 3) {
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if (event.f2t > 0) {
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char t = event.f2t;
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char t2[0];
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if (t >= 0x0f) t = 'F' + (t - 0x0f);
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else { sprintf(t2, "%X", t); t = t2[0]; }
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wprintw(win, " %c%02X", t, event.f2p);
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} else {
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wprintw(win, " ---");
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}
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}
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}
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}
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vchanoff = chanoffset; vadv = adv;
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}
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if (maxcol < mi.mod->chn && maxcol > 0) wprintw(win, ">");
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else wprintw(win, "|");
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}
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row = fi.row;
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}
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refresh();
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wrefresh(win);
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}
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printf("Closing ncurses...\n");
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clrtoeol();
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refresh();
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endwin();
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printf("Releasing libxmp...\n");
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xmp_end_player(c);
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xmp_release_module(c);
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xmp_free_context(c);
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printf("Shutting down audio driver...\n");
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err = snd_pcm_drain(handle);
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if (err < 0)
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printf("snd_pcm_drain failed: %s\n", snd_strerror(err));
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snd_pcm_close(handle);
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return 0;
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}
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