From 49567866c314ea7267fc8cec961f80a60840bdc6 Mon Sep 17 00:00:00 2001 From: Christian Pointner Date: Tue, 13 Oct 2015 02:17:00 +0200 Subject: renamed files to prepare merge of code dirs --- client/midi.c | 242 ---------------------------------------------------------- 1 file changed, 242 deletions(-) delete mode 100644 client/midi.c (limited to 'client/midi.c') diff --git a/client/midi.c b/client/midi.c deleted file mode 100644 index 7075432..0000000 --- a/client/midi.c +++ /dev/null @@ -1,242 +0,0 @@ -/* - * dolmetschctl - * - * - * Copyright (C) 2015 Christian Pointner - * - * This file is part of dolmetschctl. - * - * dolmetschctl 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 3 of the License, or - * any later version. - * - * dolmetschctl 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 dolmetschctl. If not, see . - */ - -#include "config.h" - -#include -#include -#include -#include - -#include "midi.h" - -#define NOTE_EN 0x00 -#define NOTE_DE 0x01 -u_int8_t led_cmd_en[] = { 0xB0, NOTE_EN, 0x01, 0xB0, NOTE_DE, 0x00 }; -u_int8_t led_cmd_de[] = { 0xB0, NOTE_EN, 0x00, 0xB0, NOTE_DE, 0x01 }; - -static void free_cmd_entry(void* ptr) -{ - cmd_t* c = ptr; - assert(c); - free(c->buf_); - free(c); -} - -int midi_init(midi_t* m, const char* device) -{ - assert(m != NULL); - - m->input_ = NULL; - m->output_ = NULL; - memset(m->buf_, 0, sizeof(m->buf_)); - m->read_idx_ = 0; - slist_init(&(m->cmds_), free_cmd_entry); - - int ret = snd_rawmidi_open(&(m->input_), &(m->output_), device, SND_RAWMIDI_NONBLOCK); - if(ret < 0) { - error(0, 0, "MIDI: cannot open port '%s': %s", device, snd_strerror(ret)); - return ret; - } - - return 0; -} - -int midi_enqueue_cmd(midi_t* m, const char* lang) -{ - assert(m && lang); - - int len; - const u_int8_t* src; - if(!strcmp(lang, "en")) { - len = sizeof(led_cmd_en); - src = led_cmd_en; - } - else if(!strcmp(lang, "de")) { - len = sizeof(led_cmd_de); - src = led_cmd_de; - } - else - return 0; - - cmd_t* cmd = malloc(sizeof(cmd_t)); - assert(cmd); - cmd->len_ = len; - assert((cmd->buf_ = malloc(cmd->len_))); - memcpy(cmd->buf_, src, cmd->len_); - cmd->write_idx_ = 0; - - slist_add(&(m->cmds_), cmd); - - return 0; -} - -int midi_get_poll_fd_count(midi_t* m) -{ - assert(m); - - m->in_pfds_cnt_ = snd_rawmidi_poll_descriptors_count(m->input_); - assert(m->in_pfds_cnt_ > 0); - m->out_pfds_cnt_ = snd_rawmidi_poll_descriptors_count(m->output_); - assert(m->out_pfds_cnt_ > 0); - - return (m->in_pfds_cnt_ + m->out_pfds_cnt_); -} - -int midi_get_poll_fds(midi_t* m, struct pollfd *pfds, int npfds) -{ - assert(m && pfds && npfds); - - snd_rawmidi_poll_descriptors(m->input_, pfds, m->in_pfds_cnt_); - snd_rawmidi_poll_descriptors(m->output_, &(pfds[m->in_pfds_cnt_]), npfds - m->in_pfds_cnt_); - - if(!slist_length(&(m->cmds_))) { - int i; - for(i = m->in_pfds_cnt_; i < npfds; ++i) - pfds[i].events = 0; - } - return (m->in_pfds_cnt_ + m->out_pfds_cnt_); -} - -static int midi_enqueue_lang_switch(midi_t* m, osc_t* o, const char* lang) -{ - return osc_switch_lang(o, lang); -} - -static int midi_handle_note_on(midi_t* m, osc_t* o) -{ - int ret = 0; - switch(m->buf_[1]) { - case NOTE_EN: ret = midi_enqueue_lang_switch(m, o,"en"); break; - case NOTE_DE: ret = midi_enqueue_lang_switch(m, o, "de"); break; - default: printf("ignoring unknown note\n"); break; - } - return ret; -} - -static int midi_handle_note_off(midi_t* m, osc_t* o) -{ - return 0; -} - -static int midi_handle_message(midi_t* m, osc_t* o) -{ - /* int i; */ - /* printf("MIDI: "); */ - /* for (i = 0; i < sizeof(m->buf_); ++i) */ - /* printf("%02X%c", m->buf_[i], (i >= (sizeof(m->buf_)-1)) ? '\n' : ' '); */ - - int ret = 0; - switch(m->buf_[0]) { - case 0x90: ret = midi_handle_note_on(m, o); break; - case 0x80: ret = midi_handle_note_off(m, o); break; - default: printf("ignoring unknown midi command\n"); break; - } - - return ret; -} - -static int midi_handle_in_revents(midi_t* m, struct pollfd *pfds, int npfds, osc_t* o) -{ - int err; - unsigned short revents; - if((err = snd_rawmidi_poll_descriptors_revents(m->input_, pfds, npfds, &revents)) < 0) { - error(0, 0, "MIDI: cannot get poll events: %s", snd_strerror(errno)); - return -1; - } - if(pfds[0].revents & (POLLERR | POLLHUP | POLLNVAL)) { - error(0, 0, "MIDI: got POLLERR, POLLHUP or POLLNVAL"); - return -1; - } - if(!(revents & POLLIN)) - return 0; - - int ret = snd_rawmidi_read(m->input_, &(m->buf_[m->read_idx_]), sizeof(m->buf_) - m->read_idx_); - if(ret == -EAGAIN) - return 0; - if(ret < 0) { - error(0, 0, "MIDI: cannot read from midi port: %s", snd_strerror(ret)); - return -1; - } - m->read_idx_ += ret; - if(m->read_idx_ >= sizeof(m->buf_)) { - ret = midi_handle_message(m, o); - memset(m->buf_, 0, sizeof(m->buf_)); - m->read_idx_ = 0; - return ret; - } - - return ret; -} - -static int midi_handle_out_revents(midi_t* m, struct pollfd *pfds, int npfds) -{ - int err; - unsigned short revents; - if((err = snd_rawmidi_poll_descriptors_revents(m->output_, pfds, npfds, &revents)) < 0) { - error(0, 0, "MIDI: cannot get poll events: %s", snd_strerror(errno)); - return -1; - } - if(pfds[0].revents & (POLLERR | POLLHUP | POLLNVAL)) { - error(0, 0, "MIDI: got POLLERR, POLLHUP or POLLNVAL"); - return -1; - } - if(!(revents & POLLOUT)) - return 0; - - assert(m->cmds_.first_); - cmd_t* cmd = (cmd_t*)(m->cmds_.first_->data_); - assert(cmd); - assert(cmd->buf_); - - int ret = snd_rawmidi_write(m->output_, &(cmd->buf_[cmd->write_idx_]), cmd->len_ - cmd->write_idx_); - if(ret == -EAGAIN) - return 0; - if(ret < 0) { - error(0, 0, "MIDI: cannot write to port: %s", snd_strerror(ret)); - return -1; - } - cmd->write_idx_ += ret; - if(cmd->write_idx_ >= cmd->len_) { - if((err = snd_rawmidi_drain(m->output_)) < 0) { - error(0, 0, "MIDI: cannot drain output: %s", snd_strerror(err)); - return -1; - } - slist_remove(&(m->cmds_), cmd); - } - - return 0; -} - -int midi_handle_revents(midi_t* m, struct pollfd *pfds, int npfds, osc_t* o) -{ - assert(m); - - if(!m->input_ || !m->output_) - return 0; - - int ret = midi_handle_in_revents(m, pfds, m->in_pfds_cnt_, o); - if(ret) - return ret; - - return midi_handle_out_revents(m, &(pfds[m->in_pfds_cnt_]), m->out_pfds_cnt_); -} -- cgit v1.2.3