Add --render-fit=stretched

Add an option to fit the window without preserving the aspect ratio.

app/data/bash-completion/scrcpy

@@ -179,7 +179,7 @@ _scrcpy() {
             return
             ;;
         --render-fit)
-            COMPREPLY=($(compgen -W 'letterbox disabled' -- "$cur"))
+            COMPREPLY=($(compgen -W 'letterbox stretched disabled' -- "$cur"))
             return
             ;;
         --shortcut-mod)

app/data/zsh-completion/_scrcpy

@@ -85,7 +85,7 @@ arguments=(
     '--record-format=[Force recording format]:format:(mp4 mkv m4a mka opus aac flac wav)'
     '--record-orientation=[Set the record orientation]:orientation values:(0 90 180 270)'
     '--render-driver=[Request SDL to use the given render driver]:driver name:(direct3d opengl opengles2 opengles metal software)'
-    '--render-fit=[Set the render-fit mode]:mode:(letterbox disabled)'
+    '--render-fit=[Set the render-fit mode]:mode:(letterbox stretched disabled)'
     '--require-audio=[Make scrcpy fail if audio is enabled but does not work]'
     {-s,--serial=}'[The device serial number \(mandatory for multiple devices only\)]:serial:($("${ADB-adb}" devices | awk '\''$2 == "device" {print $1}'\''))'
     {-S,--turn-screen-off}'[Turn the device screen off immediately]'

app/scrcpy.1

@@ -518,9 +518,10 @@ Supported names are currently "direct3d", "opengl", "opengles2", "opengles", "me
 .BI "\-\-render\-fit " mode
 Set the render-fit mode to configure how the rendering fits the window.
 
-Possible values are "letterbox" and "disabled":
+Possible values are "letterbox", "stretched" and "disabled":
 
  - "letterbox": preserve the aspect ratio and fit the window as best as possible (black bars are added either at the top and bottom or at the sides if needed).
+ - "stretched": fit the window without preserving the aspect ratio.
  - "disabled": render the display at the top-left corner, without scaling.
 
 Default is "letterbox", unless --flex-display is set, in which case it is "disabled".

app/src/cli.c

@@ -784,10 +784,13 @@ static const struct sc_option options[] = {
         .argdesc = "mode",
         .text = "Set the render-fit mode to configure how the rendering fits "
                 "the window.\n"
-                "Possible values are \"letterbox\" and \"disabled\".\n"
+                "Possible values are \"letterbox\", \"stretched\" and "
+                "\"disabled\".\n"
                 "\"letterbox\": preserve the aspect ratio and fit the window "
                 "as best as possible (black bars are added either at the top "
                 "and bottom or at the sides if needed).\n"
+                "\"stretched\": fit the window without preserving the aspect "
+                "ratio.\n"
                 "\"disabled\": render the display at the top-left corner, "
                 "without scaling.\n"
                 "Default is \"letterbox\", unless --flex-display is set, in "
@@ -2350,6 +2353,11 @@ parse_render_fit(const char *optarg, enum sc_render_fit *mode) {
         return true;
     }
 
+    if (!strcmp(optarg, "stretched")) {
+        *mode = SC_RENDER_FIT_STRETCHED;
+        return true;
+    }
+
     if (!strcmp(optarg, "disabled")) {
         *mode = SC_RENDER_FIT_DISABLED;
         return true;

app/src/options.h

@@ -223,6 +223,7 @@ enum sc_shortcut_mod {
 enum sc_render_fit {
     SC_RENDER_FIT_AUTO,
     SC_RENDER_FIT_LETTERBOX,
+    SC_RENDER_FIT_STRETCHED,
     SC_RENDER_FIT_DISABLED,
 };
 

app/src/screen.c

@@ -168,6 +168,16 @@ compute_content_rect(struct sc_size render_size, struct sc_size content_size,
         return;
     }
 
+    if (render_fit == SC_RENDER_FIT_STRETCHED) {
+        rect->x = 0;
+        rect->y = 0;
+        rect->w = render_size.width;
+        rect->h = render_size.height;
+        return;
+    }
+
+    assert(render_fit == SC_RENDER_FIT_LETTERBOX);
+
     if (is_optimal_size(render_size, content_size)) {
         rect->x = 0;
         rect->y = 0;