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Add OTG mode

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Add an option --otg to run scrcpy with only physical keyboard and mouse
simulation (HID over AOA), without mirroring and without requiring adb.

To avoid adding complexity into the scrcpy initialization and screen
implementation, OTG mode is implemented totally separately, with a
separate window.

PR #2974 <https://github.com/Genymobile/scrcpy/pull/2974>
This commit is contained in:
Romain Vimont
2022-01-22 11:09:41 +01:00
parent 36aaf70279
commit 91418c79ab
11 changed files with 615 additions and 2 deletions
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61
app/src/cli.c
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@@ -53,6 +53,7 @@
#define OPT_TCPIP 1033
#define OPT_RAW_KEY_EVENTS 1034
#define OPT_NO_DOWNSIZE_ON_ERROR 1035
#define OPT_OTG 1036
struct sc_option {
char shortopt;
@@ -276,6 +277,20 @@ static const struct sc_option options[] = {
"mipmaps are automatically generated to improve downscaling "
"quality. This option disables the generation of mipmaps.",
},
{
.longopt_id = OPT_OTG,
.longopt = "otg",
.text = "Run in OTG mode: simulate physical keyboard and mouse, "
"as if the computer keyboard and mouse were plugged directly "
"to the device via an OTG cable.\n"
"In this mode, adb (USB debugging) is not necessary, and "
"mirroring is disabled.\n"
"LAlt, LSuper or RSuper toggle the mouse capture mode, to give "
"control of the mouse back to the computer.\n"
"It may only work over USB, and is currently only supported "
"on Linux.\n"
"See --hid-keyboard and --hid-mouse.",
},
{
.shortopt = 'p',
.longopt = "port",
@@ -1500,6 +1515,15 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
case OPT_NO_DOWNSIZE_ON_ERROR:
opts->downsize_on_error = false;
break;
case OPT_OTG:
#ifdef HAVE_USB
opts->otg = true;
break;
#else
LOGE("OTG mode (--otg) is not supported on this platform. It "
"is only available on Linux.");
return false;
#endif
case OPT_V4L2_SINK:
#ifdef HAVE_V4L2
opts->v4l2_device = optarg;
@@ -1610,6 +1634,43 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
}
}
#ifdef HAVE_USB
if (opts->otg) {
// OTG mode is compatible with only very few options.
// Only report obvious errors.
if (opts->record_filename) {
LOGE("OTG mode: could not record");
return false;
}
if (opts->turn_screen_off) {
LOGE("OTG mode: could not turn screen off");
return false;
}
if (opts->stay_awake) {
LOGE("OTG mode: could not stay awake");
return false;
}
if (opts->show_touches) {
LOGE("OTG mode: could not request to show touches");
return false;
}
if (opts->power_off_on_close) {
LOGE("OTG mode: could not request power off on close");
return false;
}
if (opts->display_id) {
LOGE("OTG mode: could not select display");
return false;
}
#ifdef HAVE_V4L2
if (opts->v4l2_device) {
LOGE("OTG mode: could not sink to V4L2 device");
return false;
}
#endif
}
#endif
return true;
}