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Add virtual display feature

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Add a feature to create a new (separate) virtual display instead of
mirroring the device screen:

    scrcpy --new-display=1920x1080
    scrcpy --new-display=1920x1080/420  # force 420 dpi
    scrcpy --new-display         # use the main display size and density
    scrcpy --new-display -m1920  # scaled to fit a max size of 1920
    scrcpy --new-display=/240    # use the main display size and 240 dpi

Fixes #1887 <https://github.com/Genymobile/scrcpy/issues/1887>
PR #5370 <https://github.com/Genymobile/scrcpy/pull/5370>

Co-authored-by: Simon Chan <1330321+yume-chan@users.noreply.github.com>
Co-authored-by: anirudhb <anirudhb@users.noreply.github.com>
This commit is contained in:
Romain Vimont
2024-10-12 09:23:31 +02:00
parent 5d0e012a4c
commit 98ed5eb643
19 changed files with 353 additions and 12 deletions
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43
app/src/cli.c
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@@ -102,6 +102,7 @@ enum {
OPT_NO_MOUSE_HOVER,
OPT_AUDIO_DUP,
OPT_GAMEPAD,
OPT_NEW_DISPLAY,
};
struct sc_option {
@@ -557,6 +558,21 @@ static const struct sc_option options[] = {
.text = "Disable video and audio playback on the computer (equivalent "
"to --no-video-playback --no-audio-playback).",
},
{
.longopt_id = OPT_NEW_DISPLAY,
.longopt = "new-display",
.argdesc = "[<width>x<height>][/<dpi>]",
.optional_arg = true,
.text = "Create a new display with the specified resolution and "
"density. If not provided, they default to the main display "
"dimensions and DPI, and --max-size is considered.\n"
"Examples:\n"
" --new-display=1920x1080\n"
" --new-display=1920x1080/420 # force 420 dpi\n"
" --new-display # main display size and density\n"
" --new-display -m1920 # scaled to fit a max size of 1920\n"
" --new-display=/240 # main display size and 240 dpi",
},
{
.longopt_id = OPT_NO_AUDIO,
.longopt = "no-audio",
@@ -2668,6 +2684,9 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
return false;
}
break;
case OPT_NEW_DISPLAY:
opts->new_display = optarg ? optarg : "";
break;
default:
// getopt prints the error message on stderr
return false;
@@ -2848,6 +2867,25 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
}
}
if (opts->new_display) {
if (opts->video_source != SC_VIDEO_SOURCE_DISPLAY) {
LOGE("--new-display is only available with --video-source=display");
return false;
}
if (!opts->video) {
LOGE("--new-display is incompatible with --no-video");
return false;
}
if (opts->max_size && opts->new_display[0] != '\0'
&& opts->new_display[0] != '/') {
// An explicit size is defined (not "" nor "/<dpi>")
LOGE("Cannot specify both --new-display size and -m/--max-size");
return false;
}
}
if (otg) {
if (!opts->control) {
LOGE("--no-control is not allowed in OTG mode");
@@ -2954,6 +2992,11 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
return false;
}
if (opts->display_id != 0 && opts->new_display) {
LOGE("Cannot specify both --display-id and --new-display");
return false;
}
if (opts->audio && opts->audio_source == SC_AUDIO_SOURCE_AUTO) {
// Select the audio source according to the video source
if (opts->video_source == SC_VIDEO_SOURCE_DISPLAY) {