Factorize --list- options handling

This will limit code duplication as more list options will be added.

PR #4213 <https://github.com/Genymobile/scrcpy/pull/4213>

app/src/cli.c

@@ -1993,10 +1993,10 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
                 return false;
 #endif
             case OPT_LIST_ENCODERS:
-                opts->list_encoders = true;
+                opts->list |= SC_OPTION_LIST_ENCODERS;
                 break;
             case OPT_LIST_DISPLAYS:
-                opts->list_displays = true;
+                opts->list |= SC_OPTION_LIST_DISPLAYS;
                 break;
             case OPT_REQUIRE_AUDIO:
                 opts->require_audio = true;

app/src/options.c

@@ -79,7 +79,6 @@ const struct scrcpy_options scrcpy_options_default = {
     .video = true,
     .audio = true,
     .require_audio = false,
-    .list_encoders = false,
-    .list_displays = false,
     .kill_adb_on_close = false,
+    .list = 0,
 };

app/src/options.h

@@ -179,9 +179,10 @@ struct scrcpy_options {
     bool video;
     bool audio;
     bool require_audio;
-    bool list_encoders;
-    bool list_displays;
     bool kill_adb_on_close;
+#define SC_OPTION_LIST_ENCODERS 0x1
+#define SC_OPTION_LIST_DISPLAYS 0x2
+    uint8_t list;
 };
 
 extern const struct scrcpy_options scrcpy_options_default;

app/src/scrcpy.c

@@ -379,9 +379,8 @@ scrcpy(struct scrcpy_options *options) {
         .tcpip_dst = options->tcpip_dst,
         .cleanup = options->cleanup,
         .power_on = options->power_on,
-        .list_encoders = options->list_encoders,
-        .list_displays = options->list_displays,
         .kill_adb_on_close = options->kill_adb_on_close,
+        .list = options->list,
     };
 
     static const struct sc_server_callbacks cbs = {
@@ -399,7 +398,7 @@ scrcpy(struct scrcpy_options *options) {
 
     server_started = true;
 
-    if (options->list_encoders || options->list_displays) {
+    if (options->list) {
         bool ok = await_for_server(NULL);
         ret = ok ? SCRCPY_EXIT_SUCCESS : SCRCPY_EXIT_FAILURE;
         goto end;

app/src/server.c

@@ -311,10 +311,10 @@ execute_server(struct sc_server *server,
         // By default, power_on is true
         ADD_PARAM("power_on=false");
     }
-    if (params->list_encoders) {
+    if (params->list & SC_OPTION_LIST_ENCODERS) {
         ADD_PARAM("list_encoders=true");
     }
-    if (params->list_displays) {
+    if (params->list & SC_OPTION_LIST_DISPLAYS) {
         ADD_PARAM("list_displays=true");
     }
 
@@ -896,7 +896,7 @@ run_server(void *data) {
 
     // If --list-* is passed, then the server just prints the requested data
     // then exits.
-    if (params->list_encoders || params->list_displays) {
+    if (params->list) {
         sc_pid pid = execute_server(server, params);
         if (pid == SC_PROCESS_NONE) {
             goto error_connection_failed;

app/src/server.h

@@ -56,9 +56,8 @@ struct sc_server_params {
     bool select_tcpip;
     bool cleanup;
     bool power_on;
-    bool list_encoders;
-    bool list_displays;
     bool kill_adb_on_close;
+    uint8_t list;
 };
 
 struct sc_server {

server/src/main/java/com/genymobile/scrcpy/Options.java

@@ -153,6 +153,10 @@ public class Options {
         return powerOn;
     }
 
+    public boolean getList() {
+        return listEncoders || listDisplays;
+    }
+
     public boolean getListEncoders() {
         return listEncoders;
     }

server/src/main/java/com/genymobile/scrcpy/Server.java

@@ -195,7 +195,7 @@ public final class Server {
 
         Ln.initLogLevel(options.getLogLevel());
 
-        if (options.getListEncoders() || options.getListDisplays()) {
+        if (options.getList()) {
             if (options.getCleanup()) {
                 CleanUp.unlinkSelf();
             }