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mpv/input/input.c
Martin Herkt 32c63fc119 options: rename input-related options 
--ar              → --input-appleremote
--consolecontrols → --input-terminal
--media-keys      → --input-media-keys
--joystick        → --input-joystick
--lirc            → --input-lirc
--lircconf        → --input-lirc-conf
--mouse-movements → --input-cursor
--right-alt-gr    → --input-right-alt-gr
2014-05-04 02:46:05 +02:00

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/*
* This file is part of MPlayer.
*
* MPlayer 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 of the License, or
* (at your option) any later version.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stdbool.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <fcntl.h>
#include <ctype.h>
#include <pthread.h>
#include <assert.h>
#include <libavutil/avstring.h>
#include <libavutil/common.h>
#include "osdep/io.h"
#include "input.h"
#include "keycodes.h"
#include "cmd_list.h"
#include "cmd_parse.h"
#include "osdep/threads.h"
#include "osdep/timer.h"
#include "common/msg.h"
#include "common/global.h"
#include "options/m_option.h"
#include "options/path.h"
#include "talloc.h"
#include "options/options.h"
#include "bstr/bstr.h"
#include "stream/stream.h"
#include "common/common.h"
#include "joystick.h"
#if HAVE_LIRC
#include "lirc.h"
#endif
#if HAVE_COCOA
#include "osdep/macosx_events.h"
#endif
#define input_lock(ictx) pthread_mutex_lock(&ictx->mutex)
#define input_unlock(ictx) pthread_mutex_unlock(&ictx->mutex)
#define MP_MAX_KEY_DOWN 4
struct cmd_bind {
int keys[MP_MAX_KEY_DOWN];
int num_keys;
char *cmd;
char *location; // filename/line number of definition
bool is_builtin;
struct cmd_bind_section *owner;
};
struct cmd_bind_section {
struct cmd_bind *binds;
int num_binds;
char *section;
struct mp_rect mouse_area; // set at runtime, if at all
bool mouse_area_set; // mouse_area is valid and should be tested
struct cmd_bind_section *next;
};
#define MP_MAX_FDS 10
struct input_fd {
struct mp_log *log;
int fd;
int (*read_key)(void *ctx, int fd);
int (*read_cmd)(void *ctx, int fd, char *dest, int size);
int (*close_func)(void *ctx, int fd);
void *ctx;
unsigned eof : 1;
unsigned drop : 1;
unsigned dead : 1;
unsigned got_cmd : 1;
unsigned select : 1;
// These fields are for the cmd fds.
char *buffer;
int pos, size;
};
#define MAX_ACTIVE_SECTIONS 50
struct active_section {
char *name;
int flags;
};
struct cmd_queue {
struct mp_cmd *first;
};
struct input_ctx {
pthread_mutex_t mutex;
pthread_cond_t wakeup;
pthread_t mainthread;
bool mainthread_set;
struct mp_log *log;
struct mpv_global *global;
bool using_alt_gr;
bool using_ar;
bool using_cocoa_media_keys;
// Autorepeat stuff
short ar_state;
int64_t last_ar;
// Autorepeat config
unsigned int ar_delay;
unsigned int ar_rate;
// Maximum number of queued commands from keypresses (limit to avoid
// repeated slow commands piling up)
int key_fifo_size;
// history of key downs - the newest is in position 0
int key_history[MP_MAX_KEY_DOWN];
// key code of the last key that triggered MP_KEY_STATE_DOWN
int last_key_down;
int64_t last_key_down_time;
bool current_down_cmd_need_release;
struct mp_cmd *current_down_cmd;
int doubleclick_time;
int last_doubleclick_key_down;
double last_doubleclick_time;
// Mouse position on the consumer side (as command.c sees it)
int mouse_x, mouse_y;
char *mouse_section; // last section to receive mouse event
// Mouse position on the producer side (as the VO sees it)
// Unlike mouse_x/y, this can be used to resolve mouse click bindings.
int mouse_vo_x, mouse_vo_y;
bool test;
bool default_bindings;
// List of command binding sections
struct cmd_bind_section *cmd_bind_sections;
// List currently active command sections
struct active_section active_sections[MAX_ACTIVE_SECTIONS];
int num_active_sections;
// Used to track whether we managed to read something while checking
// events sources. If yes, the sources may have more queued.
bool got_new_events;
unsigned int mouse_event_counter;
struct input_fd fds[MP_MAX_FDS];
unsigned int num_fds;
struct cmd_queue cmd_queue;
bool in_select;
int wakeup_pipe[2];
};
int async_quit_request;
static int parse_config(struct input_ctx *ictx, bool builtin, bstr data,
const char *location, const char *restrict_section);
#define OPT_BASE_STRUCT struct MPOpts
// Our command line options
static const m_option_t input_config[] = {
OPT_STRING("conf", input.config_file, CONF_GLOBAL),
OPT_INT("ar-delay", input.ar_delay, CONF_GLOBAL),
OPT_INT("ar-rate", input.ar_rate, CONF_GLOBAL),
OPT_PRINT("keylist", mp_print_key_list),
OPT_PRINT("cmdlist", mp_print_cmd_list),
OPT_STRING("js-dev", input.js_dev, CONF_GLOBAL),
OPT_STRING("file", input.in_file, CONF_GLOBAL),
OPT_FLAG("default-bindings", input.default_bindings, CONF_GLOBAL),
OPT_FLAG("test", input.test, CONF_GLOBAL),
{ NULL, NULL, 0, 0, 0, 0, NULL}
};
const m_option_t mp_input_opts[] = {
{ "input", (void *)&input_config, CONF_TYPE_SUBCONFIG, 0, 0, 0, NULL},
OPT_INTRANGE("doubleclick-time", input.doubleclick_time, 0, 0, 1000),
OPT_FLAG("input-joystick", input.use_joystick, CONF_GLOBAL),
OPT_FLAG("input-lirc", input.use_lirc, CONF_GLOBAL),
OPT_FLAG("input-right-alt-gr", input.use_alt_gr, CONF_GLOBAL),
#if HAVE_LIRC
OPT_STRING("input-lirc-conf", input.lirc_configfile, CONF_GLOBAL),
#endif
#if HAVE_COCOA
OPT_FLAG("input-appleremote", input.use_appleremote, CONF_GLOBAL),
OPT_FLAG("input-media-keys", input.use_media_keys, CONF_GLOBAL),
#endif
{ NULL, NULL, 0, 0, 0, 0, NULL}
};
static const char builtin_input_conf[] =
#include "input/input_conf.h"
;
static bool test_rect(struct mp_rect *rc, int x, int y)
{
return x >= rc->x0 && y >= rc->y0 && x < rc->x1 && y < rc->y1;
}
static int queue_count_cmds(struct cmd_queue *queue)
{
int res = 0;
for (struct mp_cmd *cmd = queue->first; cmd; cmd = cmd->queue_next)
res++;
return res;
}
static bool queue_has_abort_cmds(struct cmd_queue *queue)
{
bool ret = false;
for (struct mp_cmd *cmd = queue->first; cmd; cmd = cmd->queue_next)
if (mp_input_is_abort_cmd(cmd)) {
ret = true;
break;
}
return ret;
}
static void queue_remove(struct cmd_queue *queue, struct mp_cmd *cmd)
{
struct mp_cmd **p_prev = &queue->first;
while (*p_prev != cmd) {
p_prev = &(*p_prev)->queue_next;
}
// if this fails, cmd was not in the queue
assert(*p_prev == cmd);
*p_prev = cmd->queue_next;
}
static void queue_add_head(struct cmd_queue *queue, struct mp_cmd *cmd)
{
cmd->queue_next = queue->first;
queue->first = cmd;
}
static void queue_add_tail(struct cmd_queue *queue, struct mp_cmd *cmd)
{
struct mp_cmd **p_prev = &queue->first;
while (*p_prev)
p_prev = &(*p_prev)->queue_next;
*p_prev = cmd;
cmd->queue_next = NULL;
}
static struct mp_cmd *queue_peek(struct cmd_queue *queue)
{
struct mp_cmd *ret = NULL;
ret = queue->first;
return ret;
}
static struct mp_cmd *queue_peek_tail(struct cmd_queue *queue)
{
struct mp_cmd *cur = queue->first;
while (cur && cur->queue_next)
cur = cur->queue_next;
return cur;
}
static void append_bind_info(struct input_ctx *ictx, char **pmsg,
struct cmd_bind *bind)
{
char *msg = *pmsg;
struct mp_cmd *cmd = mp_input_parse_cmd(ictx, bstr0(bind->cmd),
bind->location);
bstr stripped = cmd ? cmd->original : bstr0(bind->cmd);
msg = talloc_asprintf_append(msg, " '%.*s'", BSTR_P(stripped));
if (!cmd)
msg = talloc_asprintf_append(msg, " (invalid)");
if (strcmp(bind->owner->section, "default") != 0)
msg = talloc_asprintf_append(msg, " in section {%s}",
bind->owner->section);
msg = talloc_asprintf_append(msg, " in %s", bind->location);
if (bind->is_builtin)
msg = talloc_asprintf_append(msg, " (default)");
talloc_free(cmd);
*pmsg = msg;
}
static mp_cmd_t *handle_test(struct input_ctx *ictx, int code)
{
if (code == MP_KEY_CLOSE_WIN) {
MP_WARN(ictx,
"CLOSE_WIN was received. This pseudo key can be remapped too,\n"
"but --input-test will always quit when receiving it.\n");
const char *args[] = {"quit", NULL};
mp_cmd_t *res = mp_input_parse_cmd_strv(ictx->log, 0, args, "");
return res;
}
char *key_buf = mp_input_get_key_combo_name(&code, 1);
char *msg = talloc_asprintf(NULL, "Key %s is bound to:\n", key_buf);
talloc_free(key_buf);
int count = 0;
for (struct cmd_bind_section *bs = ictx->cmd_bind_sections;
bs; bs = bs->next)
{
for (int i = 0; i < bs->num_binds; i++) {
if (bs->binds[i].num_keys && bs->binds[i].keys[0] == code) {
count++;
msg = talloc_asprintf_append(msg, "%d. ", count);
append_bind_info(ictx, &msg, &bs->binds[i]);
msg = talloc_asprintf_append(msg, "\n");
}
}
}
if (!count)
msg = talloc_asprintf_append(msg, "(nothing)");
MP_VERBOSE(ictx, "%s\n", msg);
const char *args[] = {"show_text", msg, NULL};
mp_cmd_t *res = mp_input_parse_cmd_strv(ictx->log, MP_ON_OSD_MSG, args, "");
talloc_free(msg);
return res;
}
static struct cmd_bind_section *get_bind_section(struct input_ctx *ictx,
bstr section)
{
struct cmd_bind_section *bind_section = ictx->cmd_bind_sections;
if (section.len == 0)
section = bstr0("default");
while (bind_section) {
if (bstrcmp0(section, bind_section->section) == 0)
return bind_section;
if (bind_section->next == NULL)
break;
bind_section = bind_section->next;
}
if (bind_section) {
bind_section->next = talloc_ptrtype(ictx, bind_section->next);
bind_section = bind_section->next;
} else {
ictx->cmd_bind_sections = talloc_ptrtype(ictx, ictx->cmd_bind_sections);
bind_section = ictx->cmd_bind_sections;
}
*bind_section = (struct cmd_bind_section) {
.section = bstrdup0(bind_section, section),
};
return bind_section;
}
static void key_buf_add(int *buf, int code)
{
for (int n = MP_MAX_KEY_DOWN - 1; n > 0; n--)
buf[n] = buf[n - 1];
buf[0] = code;
}
static struct cmd_bind *find_bind_for_key_section(struct input_ctx *ictx,
char *section, int code)
{
struct cmd_bind_section *bs = get_bind_section(ictx, bstr0(section));
if (!bs->num_binds)
return NULL;
int keys[MP_MAX_KEY_DOWN];
memcpy(keys, ictx->key_history, sizeof(keys));
key_buf_add(keys, code);
struct cmd_bind *best = NULL;
// Prefer user-defined keys over builtin bindings
for (int builtin = 0; builtin < 2; builtin++) {
if (builtin && !ictx->default_bindings)
break;
if (best)
break;
for (int n = 0; n < bs->num_binds; n++) {
if (bs->binds[n].is_builtin == (bool)builtin) {
struct cmd_bind *b = &bs->binds[n];
// we have: keys=[key2 key1 keyX ...]
// and: b->keys=[key1 key2] (and may be just a prefix)
for (int i = 0; i < b->num_keys; i++) {
if (b->keys[i] != keys[b->num_keys - 1 - i])
goto skip;
}
if (!best || b->num_keys >= best->num_keys)
best = b;
skip: ;
}
}
}
return best;
}
static struct cmd_bind *find_any_bind_for_key(struct input_ctx *ictx,
char *force_section, int code)
{
if (force_section)
return find_bind_for_key_section(ictx, force_section, code);
bool use_mouse = MP_KEY_DEPENDS_ON_MOUSE_POS(code);
// First look whether a mouse section is capturing all mouse input
// exclusively (regardless of the active section stack order).
if (use_mouse && MP_KEY_IS_MOUSE_BTN_SINGLE(ictx->last_key_down)) {
struct cmd_bind *bind =
find_bind_for_key_section(ictx, ictx->mouse_section, code);
if (bind)
return bind;
}
struct cmd_bind *best_bind = NULL;
for (int i = ictx->num_active_sections - 1; i >= 0; i--) {
struct active_section *s = &ictx->active_sections[i];
struct cmd_bind *bind = find_bind_for_key_section(ictx, s->name, code);
if (bind) {
struct cmd_bind_section *bs = bind->owner;
if (!use_mouse || (bs->mouse_area_set && test_rect(&bs->mouse_area,
ictx->mouse_vo_x,
ictx->mouse_vo_y)))
{
if (!best_bind || (best_bind->is_builtin && !bind->is_builtin))
best_bind = bind;
}
}
if (s->flags & MP_INPUT_EXCLUSIVE)
break;
}
return best_bind;
}
static mp_cmd_t *get_cmd_from_keys(struct input_ctx *ictx, char *force_section,
int code)
{
if (ictx->test)
return handle_test(ictx, code);
struct cmd_bind *cmd = find_any_bind_for_key(ictx, force_section, code);
if (cmd == NULL) {
int msgl = MSGL_WARN;
if (code == MP_KEY_MOUSE_MOVE || code == MP_KEY_MOUSE_LEAVE)
msgl = MSGL_DEBUG;
char *key_buf = mp_input_get_key_combo_name(&code, 1);
MP_MSG(ictx, msgl, "No bind found for key '%s'.\n", key_buf);
talloc_free(key_buf);
return NULL;
}
mp_cmd_t *ret = mp_input_parse_cmd(ictx, bstr0(cmd->cmd), cmd->location);
if (ret) {
ret->input_section = cmd->owner->section;
if (mp_msg_test(ictx->log, MSGL_DEBUG)) {
char *keyname = mp_input_get_key_combo_name(&code, 1);
MP_DBG(ictx, "key '%s' -> '%s' in '%s'\n",
keyname, cmd->cmd, ret->input_section);
talloc_free(keyname);
}
} else {
char *key_buf = mp_input_get_key_combo_name(&code, 1);
MP_ERR(ictx, "Invalid command for bound key '%s': '%s'\n",
key_buf, cmd->cmd);
talloc_free(key_buf);
}
return ret;
}
static void update_mouse_section(struct input_ctx *ictx)
{
struct cmd_bind *bind =
find_any_bind_for_key(ictx, NULL, MP_KEY_MOUSE_MOVE);
char *new_section = bind ? bind->owner->section : "default";
char *old = ictx->mouse_section;
ictx->mouse_section = new_section;
if (strcmp(old, ictx->mouse_section) != 0) {
MP_DBG(ictx, "input: switch section %s -> %s\n",
old, ictx->mouse_section);
struct mp_cmd *cmd = get_cmd_from_keys(ictx, old, MP_KEY_MOUSE_LEAVE);
if (cmd)
queue_add_tail(&ictx->cmd_queue, cmd);
ictx->got_new_events = true;
}
}
// Called when the currently held-down key is released. This (usually) sends
// the a key-up versiob of the command associated with the keys that were held
// down.
// If the drop_current parameter is set to true, then don't send the key-up
// command. Unless we've already sent a key-down event, in which case the
// input receiver (the player) must get a key-up event, or it would get stuck
// thinking a key is still held down.
static void release_down_cmd(struct input_ctx *ictx, bool drop_current)
{
if (ictx->current_down_cmd_need_release)
drop_current = false;
if (!drop_current && ictx->current_down_cmd &&
ictx->current_down_cmd->key_up_follows)
{
ictx->current_down_cmd->key_up_follows = false;
queue_add_tail(&ictx->cmd_queue, ictx->current_down_cmd);
ictx->got_new_events = true;
} else {
talloc_free(ictx->current_down_cmd);
}
ictx->current_down_cmd = NULL;
ictx->current_down_cmd_need_release = false;
ictx->last_key_down = 0;
ictx->last_key_down_time = 0;
ictx->ar_state = -1;
update_mouse_section(ictx);
}
// Whether a command shall be sent on both key down and key up events.
static bool key_updown_ok(enum mp_command_type cmd)
{
switch (cmd) {
case MP_CMD_SCRIPT_DISPATCH:
return true;
default:
return false;
}
}
// We don't want the append to the command queue indefinitely, because that
// could lead to situations where recovery would take too long. On the other
// hand, don't drop commands that will abort playback.
static bool should_drop_cmd(struct input_ctx *ictx, struct mp_cmd *cmd)
{
struct cmd_queue *queue = &ictx->cmd_queue;
return (queue_count_cmds(queue) >= ictx->key_fifo_size &&
(!mp_input_is_abort_cmd(cmd) || queue_has_abort_cmds(queue)));
}
static struct mp_cmd *resolve_key(struct input_ctx *ictx, int code)
{
update_mouse_section(ictx);
struct mp_cmd *cmd = get_cmd_from_keys(ictx, NULL, code);
if (cmd && cmd->id != MP_CMD_IGNORE) {
memset(ictx->key_history, 0, sizeof(ictx->key_history));
if (!should_drop_cmd(ictx, cmd))
return cmd;
talloc_free(cmd);
return NULL;
}
talloc_free(cmd);
key_buf_add(ictx->key_history, code);
return NULL;
}
static void interpret_key(struct input_ctx *ictx, int code, double scale)
{
/* On normal keyboards shift changes the character code of non-special
* keys, so don't count the modifier separately for those. In other words
* we want to have "a" and "A" instead of "a" and "Shift+A"; but a separate
* shift modifier is still kept for special keys like arrow keys.
*/
int unmod = code & ~MP_KEY_MODIFIER_MASK;
if (unmod >= 32 && unmod < MP_KEY_BASE)
code &= ~MP_KEY_MODIFIER_SHIFT;
int state = code & (MP_KEY_STATE_DOWN | MP_KEY_STATE_UP);
code = code & ~(unsigned)state;
if (mp_msg_test(ictx->log, MSGL_DEBUG)) {
char *key = mp_input_get_key_name(code);
MP_DBG(ictx, "key code=%#x '%s'%s%s\n",
code, key, (state & MP_KEY_STATE_DOWN) ? " down" : "",
(state & MP_KEY_STATE_UP) ? " up" : "");
talloc_free(key);
}
if (MP_KEY_DEPENDS_ON_MOUSE_POS(unmod))
ictx->mouse_event_counter++;
ictx->got_new_events = true;
struct mp_cmd *cmd = NULL;
if (state == MP_KEY_STATE_DOWN) {
// Protect against VOs which send STATE_DOWN with autorepeat
if (ictx->last_key_down == code)
return;
// Cancel current down-event (there can be only one)
release_down_cmd(ictx, true);
cmd = resolve_key(ictx, code);
if (cmd && (code & MP_KEY_EMIT_ON_UP))
cmd->key_up_follows = true;
ictx->last_key_down = code;
ictx->last_key_down_time = mp_time_us();
ictx->ar_state = 0;
ictx->current_down_cmd = mp_cmd_clone(cmd);
ictx->current_down_cmd_need_release = false;
} else if (state == MP_KEY_STATE_UP) {
// Most VOs send RELEASE_ALL anyway
release_down_cmd(ictx, false);
} else {
// Press of key with no separate down/up events
if (ictx->last_key_down == code) {
// Mixing press events and up/down with the same key is not allowed
MP_WARN(ictx, "Mixing key presses and up/down.\n");
}
cmd = resolve_key(ictx, code);
}
if (!cmd)
return;
// Don't emit a command on key-down if the key is designed to emit commands
// on key-up (like mouse buttons). Also, if the command specifically should
// be sent both on key down and key up, still emit the command.
if (cmd->key_up_follows && !key_updown_ok(cmd->id)) {
talloc_free(cmd);
return;
}
cmd->scale = scale;
if (cmd->key_up_follows)
ictx->current_down_cmd_need_release = true;
queue_add_tail(&ictx->cmd_queue, cmd);
}
static void mp_input_feed_key(struct input_ctx *ictx, int code, double scale)
{
int unmod = code & ~MP_KEY_MODIFIER_MASK;
if (code == MP_INPUT_RELEASE_ALL) {
MP_DBG(ictx, "release all\n");
release_down_cmd(ictx, false);
return;
}
if (unmod == MP_KEY_MOUSE_LEAVE) {
update_mouse_section(ictx);
struct mp_cmd *cmd = get_cmd_from_keys(ictx, NULL, code);
if (cmd)
queue_add_tail(&ictx->cmd_queue, cmd);
ictx->got_new_events = true;
return;
}
double now = mp_time_sec();
int doubleclick_time = ictx->doubleclick_time;
// ignore system-doubleclick if we generate these events ourselves
if (doubleclick_time && MP_KEY_IS_MOUSE_BTN_DBL(unmod))
return;
interpret_key(ictx, code, scale);
if (code & MP_KEY_STATE_DOWN) {
code &= ~MP_KEY_STATE_DOWN;
if (ictx->last_doubleclick_key_down == code
&& now - ictx->last_doubleclick_time < doubleclick_time / 1000.0)
{
if (code >= MP_MOUSE_BTN0 && code <= MP_MOUSE_BTN2)
interpret_key(ictx, code - MP_MOUSE_BTN0 + MP_MOUSE_BTN0_DBL, 1);
}
ictx->last_doubleclick_key_down = code;
ictx->last_doubleclick_time = now;
}
}
void mp_input_put_key(struct input_ctx *ictx, int code)
{
input_lock(ictx);
mp_input_feed_key(ictx, code, 1);
input_unlock(ictx);
}
void mp_input_put_key_utf8(struct input_ctx *ictx, int mods, struct bstr t)
{
while (t.len) {
int code = bstr_decode_utf8(t, &t);
if (code < 0)
break;
mp_input_put_key(ictx, code | mods);
}
}
void mp_input_put_axis(struct input_ctx *ictx, int direction, double value)
{
if (value == 0.0)
return;
input_lock(ictx);
mp_input_feed_key(ictx, direction, value);
input_unlock(ictx);
}
void mp_input_set_mouse_pos(struct input_ctx *ictx, int x, int y)
{
input_lock(ictx);
MP_DBG(ictx, "mouse move %d/%d\n", x, y);
ictx->mouse_event_counter++;
ictx->mouse_vo_x = x;
ictx->mouse_vo_y = y;
update_mouse_section(ictx);
struct mp_cmd *cmd = get_cmd_from_keys(ictx, NULL, MP_KEY_MOUSE_MOVE);
if (!cmd)
cmd = mp_input_parse_cmd(ictx, bstr0("ignore"), "<internal>");
if (cmd) {
cmd->mouse_move = true;
cmd->mouse_x = x;
cmd->mouse_y = y;
if (should_drop_cmd(ictx, cmd)) {
talloc_free(cmd);
} else {
// Coalesce with previous mouse move events (i.e. replace it)
struct mp_cmd *tail = queue_peek_tail(&ictx->cmd_queue);
if (tail && tail->mouse_move) {
queue_remove(&ictx->cmd_queue, tail);
talloc_free(tail);
}
queue_add_tail(&ictx->cmd_queue, cmd);
ictx->got_new_events = true;
}
}
input_unlock(ictx);
}
unsigned int mp_input_get_mouse_event_counter(struct input_ctx *ictx)
{
// Make the frontend always display the mouse cursor (as long as it's not
// forced invisible) if mouse input is desired.
input_lock(ictx);
if (mp_input_test_mouse_active(ictx, ictx->mouse_x, ictx->mouse_y))
ictx->mouse_event_counter++;
int ret = ictx->mouse_event_counter;
input_unlock(ictx);
return ret;
}
int input_default_read_cmd(void *ctx, int fd, char *buf, int l)
{
while (1) {
int r = read(fd, buf, l);
// Error ?
if (r < 0) {
if (errno == EINTR)
continue;
else if (errno == EAGAIN)
return MP_INPUT_NOTHING;
return MP_INPUT_ERROR;
// EOF ?
}
return r;
}
}
int mp_input_add_fd(struct input_ctx *ictx, int unix_fd, int select,
int read_cmd_func(void *ctx, int fd, char *dest, int size),
int read_key_func(void *ctx, int fd),
int close_func(void *ctx, int fd), void *ctx)
{
if (select && unix_fd < 0) {
MP_ERR(ictx, "Invalid fd %d in mp_input_add_fd", unix_fd);
return 0;
}
input_lock(ictx);
struct input_fd *fd = NULL;
if (ictx->num_fds == MP_MAX_FDS) {
MP_ERR(ictx, "Too many file descriptors.\n");
} else {
fd = &ictx->fds[ictx->num_fds];
}
*fd = (struct input_fd){
.log = ictx->log,
.fd = unix_fd,
.select = select,
.read_cmd = read_cmd_func,
.read_key = read_key_func,
.close_func = close_func,
.ctx = ctx,
};
ictx->num_fds++;
input_unlock(ictx);
return !!fd;
}
static void mp_input_rm_fd(struct input_ctx *ictx, int fd)
{
struct input_fd *fds = ictx->fds;
unsigned int i;
for (i = 0; i < ictx->num_fds; i++) {
if (fds[i].fd == fd)
break;
}
if (i == ictx->num_fds)
return;
if (fds[i].close_func)
fds[i].close_func(fds[i].ctx, fds[i].fd);
talloc_free(fds[i].buffer);
if (i + 1 < ictx->num_fds)
memmove(&fds[i], &fds[i + 1],
(ictx->num_fds - i - 1) * sizeof(struct input_fd));
ictx->num_fds--;
}
void mp_input_rm_key_fd(struct input_ctx *ictx, int fd)
{
input_lock(ictx);
mp_input_rm_fd(ictx, fd);
input_unlock(ictx);
}
#define MP_CMD_MAX_SIZE 4096
static int read_cmd(struct input_fd *mp_fd, char **ret)
{
char *end;
*ret = NULL;
// Allocate the buffer if it doesn't exist
if (!mp_fd->buffer) {
mp_fd->buffer = talloc_size(NULL, MP_CMD_MAX_SIZE);
mp_fd->pos = 0;
mp_fd->size = MP_CMD_MAX_SIZE;
}
// Get some data if needed/possible
while (!mp_fd->got_cmd && !mp_fd->eof && (mp_fd->size - mp_fd->pos > 1)) {
int r = mp_fd->read_cmd(mp_fd->ctx, mp_fd->fd, mp_fd->buffer + mp_fd->pos,
mp_fd->size - 1 - mp_fd->pos);
// Error ?
if (r < 0) {
switch (r) {
case MP_INPUT_ERROR:
case MP_INPUT_DEAD:
MP_ERR(mp_fd, "Error while reading command file descriptor %d: %s\n",
mp_fd->fd, strerror(errno));
case MP_INPUT_NOTHING:
return r;
case MP_INPUT_RETRY:
continue;
}
// EOF ?
} else if (r == 0) {
mp_fd->eof = 1;
break;
}
mp_fd->pos += r;
break;
}
mp_fd->got_cmd = 0;
while (1) {
int l = 0;
// Find the cmd end
mp_fd->buffer[mp_fd->pos] = '\0';
end = strchr(mp_fd->buffer, '\r');
if (end)
*end = '\n';
end = strchr(mp_fd->buffer, '\n');
// No cmd end ?
if (!end) {
// If buffer is full we must drop all until the next \n
if (mp_fd->size - mp_fd->pos <= 1) {
MP_ERR(mp_fd, "Command buffer of file descriptor %d is full: "
"dropping content.\n", mp_fd->fd);
mp_fd->pos = 0;
mp_fd->drop = 1;
}
break;
}
// We already have a cmd : set the got_cmd flag
else if ((*ret)) {
mp_fd->got_cmd = 1;
break;
}
l = end - mp_fd->buffer;
// Not dropping : put the cmd in ret
if (!mp_fd->drop)
*ret = talloc_strndup(NULL, mp_fd->buffer, l);
else
mp_fd->drop = 0;
mp_fd->pos -= l + 1;
memmove(mp_fd->buffer, end + 1, mp_fd->pos);
}
if (*ret)
return 1;
else
return MP_INPUT_NOTHING;
}
static void read_cmd_fd(struct input_ctx *ictx, struct input_fd *cmd_fd)
{
int r;
char *text;
while ((r = read_cmd(cmd_fd, &text)) >= 0) {
ictx->got_new_events = true;
struct mp_cmd *cmd = mp_input_parse_cmd(ictx, bstr0(text), "<pipe>");
talloc_free(text);
if (cmd)
queue_add_tail(&ictx->cmd_queue, cmd);
if (!cmd_fd->got_cmd)
return;
}
if (r == MP_INPUT_ERROR)
MP_ERR(ictx, "Error on command file descriptor %d\n", cmd_fd->fd);
else if (r == MP_INPUT_DEAD)
cmd_fd->dead = true;
}
static void read_key_fd(struct input_ctx *ictx, struct input_fd *key_fd)
{
int code = key_fd->read_key(key_fd->ctx, key_fd->fd);
if (code >= 0 || code == MP_INPUT_RELEASE_ALL) {
mp_input_feed_key(ictx, code, 1);
return;
}
if (code == MP_INPUT_ERROR)
MP_ERR(ictx, "Error on key input file descriptor %d\n", key_fd->fd);
else if (code == MP_INPUT_DEAD) {
MP_ERR(ictx, "Dead key input on file descriptor %d\n", key_fd->fd);
key_fd->dead = true;
}
}
static void read_fd(struct input_ctx *ictx, struct input_fd *fd)
{
if (fd->read_cmd) {
read_cmd_fd(ictx, fd);
} else {
read_key_fd(ictx, fd);
}
}
static void remove_dead_fds(struct input_ctx *ictx)
{
for (int i = 0; i < ictx->num_fds; i++) {
if (ictx->fds[i].dead) {
mp_input_rm_fd(ictx, ictx->fds[i].fd);
i--;
}
}
}
#if HAVE_POSIX_SELECT
static void input_wait_read(struct input_ctx *ictx, int time)
{
fd_set fds;
FD_ZERO(&fds);
int max_fd = 0;
for (int i = 0; i < ictx->num_fds; i++) {
if (!ictx->fds[i].select)
continue;
if (ictx->fds[i].fd > max_fd)
max_fd = ictx->fds[i].fd;
FD_SET(ictx->fds[i].fd, &fds);
}
struct timeval tv, *time_val;
tv.tv_sec = time / 1000;
tv.tv_usec = (time % 1000) * 1000;
time_val = &tv;
ictx->in_select = true;
input_unlock(ictx);
if (select(max_fd + 1, &fds, NULL, NULL, time_val) < 0) {
if (errno != EINTR)
MP_ERR(ictx, "Select error: %s\n", strerror(errno));
FD_ZERO(&fds);
}
input_lock(ictx);
ictx->in_select = false;
for (int i = 0; i < ictx->num_fds; i++) {
if (ictx->fds[i].select && !FD_ISSET(ictx->fds[i].fd, &fds))
continue;
read_fd(ictx, &ictx->fds[i]);
}
}
#else
static void input_wait_read(struct input_ctx *ictx, int time)
{
if (time > 0) {
struct timespec deadline = mpthread_get_deadline(time / 1000.0);
pthread_cond_timedwait(&ictx->wakeup, &ictx->mutex, &deadline);
}
for (int i = 0; i < ictx->num_fds; i++)
read_fd(ictx, &ictx->fds[i]);
}
#endif
/**
* \param time time to wait at most for an event in milliseconds
*/
static void read_events(struct input_ctx *ictx, int time)
{
if (ictx->last_key_down && ictx->ar_rate > 0 && ictx->ar_state >= 0) {
time = FFMIN(time, 1000 / ictx->ar_rate);
time = FFMIN(time, ictx->ar_delay);
}
time = FFMAX(time, 0);
while (1) {
if (ictx->got_new_events)
time = 0;
ictx->got_new_events = false;
remove_dead_fds(ictx);
if (time) {
for (int i = 0; i < ictx->num_fds; i++) {
if (!ictx->fds[i].select)
read_fd(ictx, &ictx->fds[i]);
}
}
if (ictx->got_new_events)
time = 0;
input_wait_read(ictx, time);
// Read until all input FDs are empty
if (!ictx->got_new_events)
break;
}
}
int mp_input_queue_cmd(struct input_ctx *ictx, mp_cmd_t *cmd)
{
input_lock(ictx);
ictx->got_new_events = true;
if (cmd)
queue_add_tail(&ictx->cmd_queue, cmd);
input_unlock(ictx);
mp_input_wakeup(ictx);
return 1;
}
static mp_cmd_t *check_autorepeat(struct input_ctx *ictx)
{
// No input : autorepeat ?
if (ictx->ar_rate <= 0 || !ictx->current_down_cmd || !ictx->last_key_down ||
(ictx->last_key_down & MP_NO_REPEAT_KEY))
ictx->ar_state = -1; // disable
if (ictx->ar_state >= 0) {
int64_t t = mp_time_us();
if (ictx->last_ar + 2000000 < t)
ictx->last_ar = t;
// First time : wait delay
if (ictx->ar_state == 0
&& (t - ictx->last_key_down_time) >= ictx->ar_delay * 1000)
{
ictx->ar_state = 1;
ictx->last_ar = ictx->last_key_down_time + ictx->ar_delay * 1000;
return mp_cmd_clone(ictx->current_down_cmd);
// Then send rate / sec event
} else if (ictx->ar_state == 1
&& (t - ictx->last_ar) >= 1000000 / ictx->ar_rate) {
ictx->last_ar += 1000000 / ictx->ar_rate;
return mp_cmd_clone(ictx->current_down_cmd);
}
}
return NULL;
}
/**
* \param peek_only when set, the returned command stays in the queue.
* Do not free the returned cmd whe you set this!
*/
mp_cmd_t *mp_input_get_cmd(struct input_ctx *ictx, int time, int peek_only)
{
input_lock(ictx);
if (async_quit_request) {
struct mp_cmd *cmd = mp_input_parse_cmd(ictx, bstr0("quit"), "");
queue_add_head(&ictx->cmd_queue, cmd);
}
if (ictx->cmd_queue.first)
time = 0;
read_events(ictx, time);
struct cmd_queue *queue = &ictx->cmd_queue;
if (!queue->first) {
struct mp_cmd *repeated = check_autorepeat(ictx);
if (repeated) {
repeated->repeated = true;
if (repeated->def && repeated->def->allow_auto_repeat) {
queue_add_tail(queue, repeated);
} else {
talloc_free(repeated);
}
}
}
struct mp_cmd *ret = queue_peek(queue);
if (ret && !peek_only) {
queue_remove(queue, ret);
if (ret->mouse_move) {
ictx->mouse_x = ret->mouse_x;
ictx->mouse_y = ret->mouse_y;
}
}
input_unlock(ictx);
return ret;
}
void mp_input_get_mouse_pos(struct input_ctx *ictx, int *x, int *y)
{
input_lock(ictx);
*x = ictx->mouse_x;
*y = ictx->mouse_y;
input_unlock(ictx);
}
// If name is NULL, return "default".
// Return a statically allocated name of the section (i.e. return value never
// gets deallocated).
static char *normalize_section(struct input_ctx *ictx, char *name)
{
return get_bind_section(ictx, bstr0(name))->section;
}
void mp_input_disable_section(struct input_ctx *ictx, char *name)
{
input_lock(ictx);
name = normalize_section(ictx, name);
// Remove old section, or make sure it's on top if re-enabled
for (int i = ictx->num_active_sections - 1; i >= 0; i--) {
struct active_section *as = &ictx->active_sections[i];
if (strcmp(as->name, name) == 0) {
MP_TARRAY_REMOVE_AT(ictx->active_sections,
ictx->num_active_sections, i);
}
}
input_unlock(ictx);
}
void mp_input_enable_section(struct input_ctx *ictx, char *name, int flags)
{
input_lock(ictx);
name = normalize_section(ictx, name);
mp_input_disable_section(ictx, name);
MP_VERBOSE(ictx, "enable section '%s'\n", name);
if (ictx->num_active_sections < MAX_ACTIVE_SECTIONS) {
int top = ictx->num_active_sections;
if (!(flags & MP_INPUT_ON_TOP)) {
// insert before the first top entry
for (top = 0; top < ictx->num_active_sections; top++) {
if (ictx->active_sections[top].flags & MP_INPUT_ON_TOP)
break;
}
for (int n = ictx->num_active_sections; n > top; n--)
ictx->active_sections[n] = ictx->active_sections[n - 1];
}
ictx->active_sections[top] = (struct active_section){name, flags};
ictx->num_active_sections++;
}
MP_DBG(ictx, "active section stack:\n");
for (int n = 0; n < ictx->num_active_sections; n++) {
MP_DBG(ictx, " %s %d\n", ictx->active_sections[n].name,
ictx->active_sections[n].flags);
}
input_unlock(ictx);
}
void mp_input_disable_all_sections(struct input_ctx *ictx)
{
input_lock(ictx);
ictx->num_active_sections = 0;
input_unlock(ictx);
}
void mp_input_set_section_mouse_area(struct input_ctx *ictx, char *name,
int x0, int y0, int x1, int y1)
{
input_lock(ictx);
struct cmd_bind_section *s = get_bind_section(ictx, bstr0(name));
s->mouse_area = (struct mp_rect){x0, y0, x1, y1};
s->mouse_area_set = x0 != x1 && y0 != y1;
input_unlock(ictx);
}
static bool test_mouse(struct input_ctx *ictx, int x, int y, int rej_flags)
{
input_lock(ictx);
bool res = false;
for (int i = 0; i < ictx->num_active_sections; i++) {
struct active_section *as = &ictx->active_sections[i];
if (as->flags & rej_flags)
continue;
struct cmd_bind_section *s = get_bind_section(ictx, bstr0(as->name));
if (s->mouse_area_set && test_rect(&s->mouse_area, x, y)) {
res = true;
break;
}
}
input_unlock(ictx);
return res;
}
bool mp_input_test_mouse_active(struct input_ctx *ictx, int x, int y)
{
return test_mouse(ictx, x, y, MP_INPUT_ALLOW_HIDE_CURSOR);
}
bool mp_input_test_dragging(struct input_ctx *ictx, int x, int y)
{
return test_mouse(ictx, x, y, MP_INPUT_ALLOW_VO_DRAGGING);
}
static void bind_dealloc(struct cmd_bind *bind)
{
talloc_free(bind->cmd);
talloc_free(bind->location);
}
// builtin: if true, remove all builtin binds, else remove all user binds
static void remove_binds(struct cmd_bind_section *bs, bool builtin)
{
for (int n = bs->num_binds - 1; n >= 0; n--) {
if (bs->binds[n].is_builtin == builtin) {
bind_dealloc(&bs->binds[n]);
assert(bs->num_binds >= 1);
bs->binds[n] = bs->binds[bs->num_binds - 1];
bs->num_binds--;
}
}
}
void mp_input_define_section(struct input_ctx *ictx, char *name, char *location,
char *contents, bool builtin)
{
if (!name || !name[0])
return; // parse_config() changes semantics with restrict_section==empty
input_lock(ictx);
if (contents) {
parse_config(ictx, builtin, bstr0(contents), location, name);
} else {
// Disable:
mp_input_disable_section(ictx, name);
// Delete:
struct cmd_bind_section *bs = get_bind_section(ictx, bstr0(name));
remove_binds(bs, builtin);
}
input_unlock(ictx);
}
static bool bind_matches_key(struct cmd_bind *bind, int num_keys, const int *keys)
{
if (bind->num_keys != num_keys)
return false;
for (int i = 0; i < num_keys; i++) {
if (bind->keys[i] != keys[i])
return false;
}
return true;
}
static void bind_keys(struct input_ctx *ictx, bool builtin, bstr section,
const int *keys, int num_keys, bstr command,
const char *loc)
{
struct cmd_bind_section *bs = get_bind_section(ictx, section);
struct cmd_bind *bind = NULL;
assert(num_keys <= MP_MAX_KEY_DOWN);
for (int n = 0; n < bs->num_binds; n++) {
struct cmd_bind *b = &bs->binds[n];
if (bind_matches_key(b, num_keys, keys) && b->is_builtin == builtin) {
bind = b;
break;
}
}
if (!bind) {
struct cmd_bind empty = {{0}};
MP_TARRAY_APPEND(bs, bs->binds, bs->num_binds, empty);
bind = &bs->binds[bs->num_binds - 1];
}
bind_dealloc(bind);
*bind = (struct cmd_bind) {
.cmd = bstrdup0(bs->binds, command),
.location = talloc_strdup(bs->binds, loc),
.owner = bs,
.is_builtin = builtin,
.num_keys = num_keys,
};
memcpy(bind->keys, keys, num_keys * sizeof(bind->keys[0]));
if (mp_msg_test(ictx->log, MSGL_DEBUG)) {
char *s = mp_input_get_key_combo_name(keys, num_keys);
MP_DBG(ictx, "add: section='%s' key='%s'%s cmd='%s' location='%s'\n",
bind->owner->section, s, bind->is_builtin ? " builtin" : "",
bind->cmd, bind->location);
talloc_free(s);
}
}
// restrict_section: every entry is forced to this section name
// if NULL, load normally and allow any sections
static int parse_config(struct input_ctx *ictx, bool builtin, bstr data,
const char *location, const char *restrict_section)
{
int n_binds = 0;
int line_no = 0;
char *cur_loc = NULL;
while (data.len) {
line_no++;
if (cur_loc)
talloc_free(cur_loc);
cur_loc = talloc_asprintf(NULL, "%s:%d", location, line_no);
bstr line = bstr_strip_linebreaks(bstr_getline(data, &data));
line = bstr_lstrip(line);
if (line.len == 0 || bstr_startswith0(line, "#"))
continue;
if (bstr_eatstart0(&line, "default-bindings ")) {
bstr orig = line;
bstr_split_tok(line, "#", &line, &(bstr){0});
line = bstr_strip(line);
if (bstr_equals0(line, "start")) {
builtin = true;
} else {
MP_ERR(ictx, "Broken line: %.*s at %s\n", BSTR_P(orig), cur_loc);
}
continue;
}
struct bstr command;
// Find the key name starting a line
struct bstr keyname = bstr_split(line, WHITESPACE, &command);
command = bstr_strip(command);
if (command.len == 0) {
MP_ERR(ictx, "Unfinished key binding: %.*s at %s\n", BSTR_P(line),
cur_loc);
continue;
}
char *name = bstrdup0(NULL, keyname);
int keys[MP_MAX_KEY_DOWN];
int num_keys = 0;
if (!mp_input_get_keys_from_string(name, MP_MAX_KEY_DOWN, &num_keys, keys))
{
talloc_free(name);
MP_ERR(ictx, "Unknown key '%.*s' at %s\n", BSTR_P(keyname), cur_loc);
continue;
}
talloc_free(name);
bstr section = bstr0(restrict_section);
if (!section.len) {
if (bstr_startswith0(command, "{")) {
int p = bstrchr(command, '}');
if (p != -1) {
section = bstr_strip(bstr_splice(command, 1, p));
command = bstr_lstrip(bstr_cut(command, p + 1));
}
}
}
bind_keys(ictx, builtin, section, keys, num_keys, command, cur_loc);
n_binds++;
// Print warnings if invalid commands are encountered.
talloc_free(mp_input_parse_cmd(ictx, command, cur_loc));
}
talloc_free(cur_loc);
return n_binds;
}
static int parse_config_file(struct input_ctx *ictx, char *file, bool warn)
{
int r = 0;
void *tmp = talloc_new(NULL);
stream_t *s = NULL;
file = mp_get_user_path(tmp, ictx->global, file);
if (!mp_path_exists(file)) {
MP_MSG(ictx, warn ? MSGL_ERR : MSGL_V,
"Input config file %s not found.\n", file);
goto done;
}
s = stream_open(file, ictx->global);
if (!s) {
MP_ERR(ictx, "Can't open input config file %s.\n", file);
goto done;
}
bstr data = stream_read_complete(s, tmp, 1000000);
if (data.start) {
MP_VERBOSE(ictx, "Parsing input config file %s\n", file);
int num = parse_config(ictx, false, data, file, NULL);
MP_VERBOSE(ictx, "Input config file %s parsed: %d binds\n", file, num);
r = 1;
} else {
MP_ERR(ictx, "Error reading input config file %s\n", file);
}
done:
free_stream(s);
talloc_free(tmp);
return r;
}
static int close_fd(void *ctx, int fd)
{
return close(fd);
}
#ifndef __MINGW32__
static int read_wakeup(void *ctx, int fd)
{
char buf[100];
read(fd, buf, sizeof(buf));
return MP_INPUT_NOTHING;
}
#endif
struct input_ctx *mp_input_init(struct mpv_global *global)
{
struct input_conf *input_conf = &global->opts->input;
struct input_ctx *ictx = talloc_ptrtype(NULL, ictx);
*ictx = (struct input_ctx){
.global = global,
.log = mp_log_new(ictx, global->log, "input"),
.key_fifo_size = input_conf->key_fifo_size,
.doubleclick_time = input_conf->doubleclick_time,
.ar_state = -1,
.ar_delay = input_conf->ar_delay,
.ar_rate = input_conf->ar_rate,
.default_bindings = input_conf->default_bindings,
.mouse_section = "default",
.test = input_conf->test,
.wakeup_pipe = {-1, -1},
};
mpthread_mutex_init_recursive(&ictx->mutex);
pthread_cond_init(&ictx->wakeup, NULL);
// Setup default section, so that it does nothing.
mp_input_enable_section(ictx, NULL, MP_INPUT_ALLOW_VO_DRAGGING |
MP_INPUT_ALLOW_HIDE_CURSOR);
mp_input_set_section_mouse_area(ictx, NULL, INT_MIN, INT_MIN, INT_MAX, INT_MAX);
// "Uncomment" the default key bindings in etc/input.conf and add them.
// All lines that do not start with '# ' are parsed.
bstr builtin = bstr0(builtin_input_conf);
while (builtin.len) {
bstr line = bstr_getline(builtin, &builtin);
bstr_eatstart0(&line, "#");
if (!bstr_startswith0(line, " "))
parse_config(ictx, true, line, "<builtin>", NULL);
}
#ifndef __MINGW32__
int ret = pipe(ictx->wakeup_pipe);
if (ret == 0) {
for (int i = 0; i < 2 && ret >= 0; i++) {
mp_set_cloexec(ictx->wakeup_pipe[i]);
ret = fcntl(ictx->wakeup_pipe[i], F_GETFL);
if (ret < 0)
break;
ret = fcntl(ictx->wakeup_pipe[i], F_SETFL, ret | O_NONBLOCK);
if (ret < 0)
break;
}
}
if (ret < 0)
MP_ERR(ictx, "Failed to initialize wakeup pipe: %s\n", strerror(errno));
else
mp_input_add_fd(ictx, ictx->wakeup_pipe[0], true, NULL, read_wakeup,
NULL, NULL);
#endif
bool config_ok = false;
if (input_conf->config_file)
config_ok = parse_config_file(ictx, input_conf->config_file, true);
if (!config_ok && global->opts->load_config) {
// Try global conf dir
char *file = mp_find_config_file(NULL, global, "input.conf");
config_ok = file && parse_config_file(ictx, file, false);
talloc_free(file);
}
if (!config_ok) {
MP_VERBOSE(ictx, "Falling back on default (hardcoded) input config\n");
}
#if HAVE_JOYSTICK
if (input_conf->use_joystick)
mp_input_joystick_init(ictx, ictx->log, input_conf->js_dev);
#endif
#if HAVE_LIRC
if (input_conf->use_lirc)
mp_input_lirc_init(ictx, ictx->log, input_conf->lirc_configfile);
#endif
if (input_conf->use_alt_gr) {
ictx->using_alt_gr = true;
}
#if HAVE_COCOA
if (input_conf->use_appleremote) {
cocoa_init_apple_remote();
ictx->using_ar = true;
}
if (input_conf->use_media_keys) {
cocoa_init_media_keys();
ictx->using_cocoa_media_keys = true;
}
#endif
if (input_conf->in_file) {
int mode = O_RDONLY;
#ifndef __MINGW32__
// Use RDWR for FIFOs to ensure they stay open over multiple accesses.
// Note that on Windows due to how the API works, using RDONLY should
// be ok.
struct stat st;
if (stat(input_conf->in_file, &st) == 0 && S_ISFIFO(st.st_mode))
mode = O_RDWR;
mode |= O_NONBLOCK;
#endif
int in_file_fd = open(input_conf->in_file, mode);
if (in_file_fd >= 0)
mp_input_add_fd(ictx, in_file_fd, 1, input_default_read_cmd, NULL, close_fd, NULL);
else
MP_ERR(ictx, "Can't open %s: %s\n", input_conf->in_file,
strerror(errno));
}
return ictx;
}
static void clear_queue(struct cmd_queue *queue)
{
while (queue->first) {
struct mp_cmd *item = queue->first;
queue_remove(queue, item);
talloc_free(item);
}
}
void mp_input_uninit(struct input_ctx *ictx)
{
if (!ictx)
return;
#if HAVE_COCOA
if (ictx->using_ar) {
cocoa_uninit_apple_remote();
}
if (ictx->using_cocoa_media_keys) {
cocoa_uninit_media_keys();
}
#endif
for (int i = 0; i < ictx->num_fds; i++) {
if (ictx->fds[i].close_func)
ictx->fds[i].close_func(ictx->fds[i].ctx, ictx->fds[i].fd);
}
for (int i = 0; i < 2; i++) {
if (ictx->wakeup_pipe[i] != -1)
close(ictx->wakeup_pipe[i]);
}
clear_queue(&ictx->cmd_queue);
talloc_free(ictx->current_down_cmd);
pthread_mutex_destroy(&ictx->mutex);
pthread_cond_destroy(&ictx->wakeup);
talloc_free(ictx);
}
void mp_input_wakeup(struct input_ctx *ictx)
{
input_lock(ictx);
bool send_wakeup = ictx->in_select;
ictx->got_new_events = true;
pthread_cond_signal(&ictx->wakeup);
input_unlock(ictx);
// Safe without locking
if (send_wakeup && ictx->wakeup_pipe[1] >= 0)
write(ictx->wakeup_pipe[1], &(char){0}, 1);
}
void mp_input_wakeup_nolock(struct input_ctx *ictx)
{
if (ictx->wakeup_pipe[1] >= 0) {
write(ictx->wakeup_pipe[1], &(char){0}, 1);
} else {
// Not race condition free. Done for the sake of jackaudio+windows.
ictx->got_new_events = true;
pthread_cond_signal(&ictx->wakeup);
}
}
static bool test_abort(struct input_ctx *ictx)
{
if (async_quit_request || queue_has_abort_cmds(&ictx->cmd_queue)) {
MP_WARN(ictx, "Received command to move to another file. "
"Aborting current processing.\n");
return true;
}
return false;
}
void mp_input_set_main_thread(struct input_ctx *ictx)
{
ictx->mainthread = pthread_self();
ictx->mainthread_set = true;
}
bool mp_input_check_interrupt(struct input_ctx *ictx)
{
input_lock(ictx);
bool res = test_abort(ictx);
if (!res && ictx->mainthread_set &&
pthread_equal(ictx->mainthread, pthread_self()))
{
read_events(ictx, 0);
}
input_unlock(ictx);
return res;
}
bool mp_input_use_alt_gr(struct input_ctx *ictx)
{
return ictx->using_alt_gr;
}
struct mp_cmd *mp_input_parse_cmd(struct input_ctx *ictx, bstr str,
const char *location)
{
return mp_input_parse_cmd_(ictx->log, str, location);
}
void mp_input_run_cmd(struct input_ctx *ictx, int def_flags, const char **cmd,
const char *location)
{
mp_cmd_t *cmdt = mp_input_parse_cmd_strv(ictx->log, def_flags, cmd, location);
mp_input_queue_cmd(ictx, cmdt);
}
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