Add option to disable window decoration

Add --window-borderless parameter.

Signed-off-by: Romain Vimont <rom@rom1v.com>

app/src/main.c

@@ -107,6 +107,9 @@ static void usage(const char *arg0) {
         "    -v, --version\n"
         "        Print the version of scrcpy.\n"
         "\n"
+        "    --window-borderless\n"
+        "        Disable window decorations (display borderless window).\n"
+        "\n"
         "    --window-title text\n"
         "        Set a custom window title.\n"
         "\n"
@@ -370,6 +373,7 @@ guess_record_format(const char *filename) {
 #define OPT_WINDOW_Y              1008
 #define OPT_WINDOW_WIDTH          1009
 #define OPT_WINDOW_HEIGHT         1010
+#define OPT_WINDOW_BORDERLESS     1011
 
 static bool
 parse_args(struct args *args, int argc, char *argv[]) {
@@ -398,6 +402,8 @@ parse_args(struct args *args, int argc, char *argv[]) {
         {"window-y",              required_argument, NULL, OPT_WINDOW_Y},
         {"window-width",          required_argument, NULL, OPT_WINDOW_WIDTH},
         {"window-height",         required_argument, NULL, OPT_WINDOW_HEIGHT},
+        {"window-borderless",     no_argument,       NULL,
+                                                     OPT_WINDOW_BORDERLESS},
         {NULL,                    0,                 NULL, 0  },
     };
 
@@ -495,6 +501,9 @@ parse_args(struct args *args, int argc, char *argv[]) {
                     return false;
                 }
                 break;
+            case OPT_WINDOW_BORDERLESS:
+                opts->window_borderless = true;
+                break;
             case OPT_PUSH_TARGET:
                 opts->push_target = optarg;
                 break;

app/src/scrcpy.c

@@ -389,7 +389,8 @@ scrcpy(const struct scrcpy_options *options) {
         if (!screen_init_rendering(&screen, window_title, frame_size,
                                    options->always_on_top, options->window_x,
                                    options->window_y, options->window_width,
-                                   options->window_height)) {
+                                   options->window_height,
+                                   options->window_borderless)) {
             goto end;
         }
 

app/src/scrcpy.h

@@ -30,6 +30,7 @@ struct scrcpy_options {
     bool turn_screen_off;
     bool render_expired_frames;
     bool prefer_text;
+    bool window_borderless;
 };
 
 #define SCRCPY_OPTIONS_DEFAULT { \
@@ -54,6 +55,7 @@ struct scrcpy_options {
     .turn_screen_off = false, \
     .render_expired_frames = false, \
     .prefer_text = false, \
+    .window_borderless = false, \
 }
 
 bool

app/src/screen.c

@@ -164,7 +164,7 @@ bool
 screen_init_rendering(struct screen *screen, const char *window_title,
                       struct size frame_size, bool always_on_top,
                       int16_t window_x, int16_t window_y, uint16_t window_width,
-                      uint16_t window_height) {
+                      uint16_t window_height, bool window_borderless) {
     screen->frame_size = frame_size;
 
     struct size window_size =
@@ -181,6 +181,9 @@ screen_init_rendering(struct screen *screen, const char *window_title,
              "(compile with SDL >= 2.0.5 to enable it)");
 #endif
     }
+    if (window_borderless) {
+        window_flags |= SDL_WINDOW_BORDERLESS;
+    }
 
     int x = window_x != -1 ? window_x : SDL_WINDOWPOS_UNDEFINED;
     int y = window_y != -1 ? window_y : SDL_WINDOWPOS_UNDEFINED;

app/src/screen.h

@@ -57,7 +57,7 @@ bool
 screen_init_rendering(struct screen *screen, const char *window_title,
                       struct size frame_size, bool always_on_top,
                       int16_t window_x, int16_t window_y, uint16_t window_width,
-                      uint16_t window_height);
+                      uint16_t window_height, bool window_borderless);
 
 // show the window
 void