Add server option raw_video_stream

For convenience, this new option forces the 3 following options:
 - send_device_meta=false
 - send_frame_meta=false
 - send_dummy_byte=false

This allows to send a raw H.264 stream on the video socket.

Concretely:

    adb push scrcpy-server /data/local/tmp/scrcpy-server.jar
    adb forward tcp:1234 localabstract:scrcpy
    adb shell CLASSPATH=/data/local/tmp/scrcpy-server.jar \
        app_process / com.genymobile.scrcpy.Server 1.21 \
        raw_video_stream=true tunnel_forward=true control=false

As soon as a client connects via TCP to localhost:1234, it will receive
the raw H.264 stream.

Refs #1419 comment <https://github.com/Genymobile/scrcpy/pull/1419#issuecomment-1013964650>
PR #2971 <https://github.com/Genymobile/scrcpy/pull/2971>

FAQ.md

@@ -219,6 +219,9 @@ scrcpy -m 1024
 scrcpy -m 800
 ```
 
+Since scrcpy v1.22, scrcpy automatically tries again with a lower definition
+before failing. This behavior can be disabled with `--no-downsize-on-error`.
+
 You could also try another [encoder](README.md#encoder).
 
 

LICENSE

@@ -188,7 +188,7 @@
       identification within third-party archives.
 
    Copyright (C) 2018 Genymobile
-   Copyright (C) 2018-2021 Romain Vimont
+   Copyright (C) 2018-2022 Romain Vimont
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

README.id.md

@@ -672,7 +672,7 @@ Baca [halaman pengembang].
 ## Lisensi
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2021 Romain Vimont
+    Copyright (C) 2018-2022 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

README.it.md

@@ -790,7 +790,7 @@ Leggi la [pagina per sviluppatori].
 ## Licenza (in inglese)
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2021 Romain Vimont
+    Copyright (C) 2018-2022 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

README.jp.md

@@ -776,7 +776,7 @@ _⁴Android 7以上のみ._
 ## ライセンス
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2021 Romain Vimont
+    Copyright (C) 2018-2022 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

README.ko.md

@@ -475,7 +475,7 @@ _²화면이 꺼진 상태에서 우클릭 시 다시 켜지며, 그 외의 상
 ## 라이선스
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2021 Romain Vimont
+    Copyright (C) 2018-2022 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

README.md

@@ -31,6 +31,8 @@ Its features include:
  - device screen [as a webcam (V4L2)](#v4l2loopback) (Linux-only)
  - [physical keyboard simulation (HID)](#physical-keyboard-simulation-hid)
    (Linux-only)
+ - [physical mouse simulation (HID)](#physical-mouse-simulation-hid)
+   (Linux-only)
  - and more…
 
 ## Requirements
@@ -815,6 +817,35 @@ a physical keyboard is connected).
 
 [Physical keyboard]: https://github.com/Genymobile/scrcpy/pull/2632#issuecomment-923756915
 
+#### Physical mouse simulation (HID)
+
+Similarly to the physical keyboard simulation, it is possible to simulate a
+physical mouse. Likewise, it only works if the device is connected by USB, and
+is currently only supported on Linux.
+
+By default, scrcpy uses Android mouse events injection, using absolute
+coordinates. By simulating a physical mouse, a mouse pointer appears on the
+Android device, and relative mouse motion, clicks and scrolls are injected.
+
+To enable this mode:
+
+```bash
+scrcpy --hid-mouse
+scrcpy -M  # short version
+```
+
+You could also add `--forward-all-clicks` to [forward all mouse
+buttons][forward_all_clicks].
+
+[forward_all_clicks]: #right-click-and-middle-click
+
+When this mode is enabled, the computer mouse is "captured" (the mouse pointer
+disappears from the computer and appears on the Android device instead).
+
+Special capture keys, either <kbd>Alt</kbd> or <kbd>Super</kbd>, toggle
+(disable or enable) the mouse capture. Use one of them to give the control of
+the mouse back to the computer.
+
 
 #### Text injection preference
 
@@ -1017,7 +1048,7 @@ Read the [developers page].
 ## Licence
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2021 Romain Vimont
+    Copyright (C) 2018-2022 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

README.pt-br.md

@@ -857,7 +857,7 @@ Leia a [página dos desenvolvedores][developers page].
 ## Licença
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2021 Romain Vimont
+    Copyright (C) 2018-2022 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

README.sp.md

@@ -720,7 +720,7 @@ Lea la [hoja de desarrolladores (en inglés)](DEVELOP.md).
 ## Licencia
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2021 Romain Vimont
+    Copyright (C) 2018-2022 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

README.tr.md

@@ -801,7 +801,7 @@ Bakınız [FAQ](FAQ.md).
 ## Lisans
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2021 Romain Vimont
+    Copyright (C) 2018-2022 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

README.zh-Hans.md

@@ -842,7 +842,7 @@ ADB=/path/to/adb scrcpy
 ## 许可协议
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2021 Romain Vimont
+    Copyright (C) 2018-2022 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

README.zh-Hant.md

@@ -679,7 +679,7 @@ _³只支援 Android 7+。_
 ## Licence
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2021 Romain Vimont
+    Copyright (C) 2018-2022 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

app/meson.build

@@ -11,7 +11,7 @@ src = [
     'src/decoder.c',
     'src/device_msg.c',
     'src/icon.c',
-    'src/file_handler.c',
+    'src/file_pusher.c',
     'src/fps_counter.c',
     'src/frame_buffer.c',
     'src/input_manager.c',
@@ -49,9 +49,11 @@ conf.set('_XOPEN_SOURCE', '700')
 conf.set('_GNU_SOURCE', true)
 
 if host_machine.system() == 'windows'
+    windows = import('windows')
     src += [
         'src/sys/win/file.c',
         'src/sys/win/process.c',
+        windows.compile_resources('scrcpy-windows.rc'),
     ]
     conf.set('_WIN32_WINNT', '0x0600')
     conf.set('WINVER', '0x0600')
@@ -75,12 +77,15 @@ if aoa_hid_support
     src += [
         'src/aoa_hid.c',
         'src/hid_keyboard.c',
+        'src/hid_mouse.c',
     ]
 endif
 
 cc = meson.get_compiler('c')
 
-if not get_option('crossbuild_windows')
+crossbuild_windows = meson.is_cross_build() and host_machine.system() == 'windows'
+
+if not crossbuild_windows
 
     # native build
     dependencies = [
@@ -113,15 +118,20 @@ else
         include_directories: include_directories(sdl2_include_dir)
     )
 
-    prebuilt_ffmpeg_shared = meson.get_cross_property('prebuilt_ffmpeg_shared')
-    prebuilt_ffmpeg_dev = meson.get_cross_property('prebuilt_ffmpeg_dev')
-    ffmpeg_bin_dir = meson.current_source_dir() + '/../prebuilt-deps/' + prebuilt_ffmpeg_shared + '/bin'
-    ffmpeg_include_dir = '../prebuilt-deps/' + prebuilt_ffmpeg_dev + '/include'
+    prebuilt_ffmpeg = meson.get_cross_property('prebuilt_ffmpeg')
+    ffmpeg_bin_dir = meson.current_source_dir() + '/../prebuilt-deps/' + prebuilt_ffmpeg + '/bin'
+    ffmpeg_include_dir = '../prebuilt-deps/' + prebuilt_ffmpeg + '/include'
+
+    # ffmpeg versions are different for win32 and win64 builds
+    ffmpeg_avcodec = meson.get_cross_property('ffmpeg_avcodec')
+    ffmpeg_avformat = meson.get_cross_property('ffmpeg_avformat')
+    ffmpeg_avutil = meson.get_cross_property('ffmpeg_avutil')
+
     ffmpeg = declare_dependency(
         dependencies: [
-            cc.find_library('avcodec-58', dirs: ffmpeg_bin_dir),
-            cc.find_library('avformat-58', dirs: ffmpeg_bin_dir),
-            cc.find_library('avutil-56', dirs: ffmpeg_bin_dir),
+            cc.find_library(ffmpeg_avcodec, dirs: ffmpeg_bin_dir),
+            cc.find_library(ffmpeg_avformat, dirs: ffmpeg_bin_dir),
+            cc.find_library(ffmpeg_avutil, dirs: ffmpeg_bin_dir),
         ],
         include_directories: include_directories(ffmpeg_include_dir)
     )

app/scrcpy-windows.manifest

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
+  <asmv3:application>
+    <asmv3:windowsSettings>
+      <dpiAware xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">true</dpiAware>
+      <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2</dpiAwareness>
+    </asmv3:windowsSettings>
+  </asmv3:application>
+</assembly>

app/scrcpy-windows.rc

@@ -0,0 +1,23 @@
+#include <winuser.h>
+
+0 ICON "../data/icon.ico"
+1 RT_MANIFEST "scrcpy-windows.manifest"
+2 VERSIONINFO
+BEGIN
+  BLOCK "StringFileInfo"
+  BEGIN
+    BLOCK "040904E4"
+    BEGIN
+      VALUE "FileDescription", "Display and control your Android device"
+      VALUE "InternalName", "scrcpy"
+      VALUE "LegalCopyright", "Romain Vimont, Genymobile"
+      VALUE "OriginalFilename", "scrcpy.exe"
+      VALUE "ProductName", "scrcpy"
+      VALUE "ProductVersion", "1.21"
+    END
+  END
+  BLOCK "VarFileInfo"
+  BEGIN
+    VALUE "Translation", 0x409, 1252
+  END
+END

app/scrcpy.1

@@ -96,6 +96,8 @@ The keyboard layout must be configured (once and for all) on the device, via Set
 
 However, the option is only available when the HID keyboard is enabled (or a physical keyboard is connected).
 
+Also see \fB\-\-hid\-mouse\fR.
+
 .TP
 .B \-\-legacy\-paste
 Inject computer clipboard text as a sequence of key events on Ctrl+v (like MOD+Shift+v).
@@ -120,12 +122,30 @@ Limit both the width and height of the video to \fIvalue\fR. The other dimension
 
 Default is 0 (unlimited).
 
+.TP
+.B \-M, \-\-hid\-mouse
+Simulate a physical mouse by using HID over AOAv2.
+
+In this mode, the computer mouse is captured to control the device directly (relative mouse mode).
+
+LAlt, LSuper or RSuper toggle the capture mode, to give control of the mouse back to the computer.
+
+It may only work over USB, and is currently only supported on Linux.
+
+Also see \fB\-\-hid\-keyboard\fR.
+
 .TP
 .B \-\-no\-clipboard\-autosync
 By default, scrcpy automatically synchronizes the computer clipboard to the device clipboard before injecting Ctrl+v, and the device clipboard to the computer clipboard whenever it changes.
 
 This option disables this automatic synchronization.
 
+.TP
+.B \-\-no\-downsize\-on\-error
+By default, on MediaCodec error, scrcpy automatically tries again with a lower definition.
+
+This option disables this behavior.
+
 .TP
 .B \-n, \-\-no\-control
 Disable device control (mirror the device in read\-only).
@@ -446,7 +466,7 @@ Copyright \(co 2018 Genymobile
 Genymobile
 .UE
 
-Copyright \(co 2018\-2020
+Copyright \(co 2018\-2022
 .MT rom@rom1v.com
 Romain Vimont
 .ME

app/src/aoa_hid.c

@@ -56,14 +56,13 @@ accept_device(libusb_device *device, const char *serial) {
     // devices available on the computer have permission restrictions
 
     struct libusb_device_descriptor desc;
-    libusb_get_device_descriptor(device, &desc);
-
-    if (!desc.iSerialNumber) {
+    int result = libusb_get_device_descriptor(device, &desc);
+    if (result < 0 || !desc.iSerialNumber) {
         return false;
     }
 
     libusb_device_handle *handle;
-    int result = libusb_open(device, &handle);
+    result = libusb_open(device, &handle);
     if (result < 0) {
         return false;
     }
@@ -131,31 +130,22 @@ sc_aoa_init(struct sc_aoa *aoa, const char *serial,
     }
 
     if (!sc_cond_init(&aoa->event_cond)) {
-        sc_mutex_destroy(&aoa->mutex);
-        return false;
+        goto error_destroy_mutex;
     }
 
     if (libusb_init(&aoa->usb_context) != LIBUSB_SUCCESS) {
-        sc_cond_destroy(&aoa->event_cond);
-        sc_mutex_destroy(&aoa->mutex);
-        return false;
+        goto error_destroy_cond;
     }
 
     aoa->usb_device = sc_aoa_find_usb_device(serial);
     if (!aoa->usb_device) {
         LOGW("USB device of serial %s not found", serial);
-        libusb_exit(aoa->usb_context);
-        sc_mutex_destroy(&aoa->mutex);
-        sc_cond_destroy(&aoa->event_cond);
-        return false;
+        goto error_exit_libusb;
     }
 
     if (sc_aoa_open_usb_handle(aoa->usb_device, &aoa->usb_handle) < 0) {
         LOGW("Open USB handle failed");
-        libusb_unref_device(aoa->usb_device);
-        libusb_exit(aoa->usb_context);
-        sc_cond_destroy(&aoa->event_cond);
-        sc_mutex_destroy(&aoa->mutex);
+        goto error_unref_device;
         return false;
     }
 
@@ -163,6 +153,16 @@ sc_aoa_init(struct sc_aoa *aoa, const char *serial,
     aoa->acksync = acksync;
 
     return true;
+
+error_unref_device:
+    libusb_unref_device(aoa->usb_device);
+error_exit_libusb:
+    libusb_exit(aoa->usb_context);
+error_destroy_cond:
+    sc_cond_destroy(&aoa->event_cond);
+error_destroy_mutex:
+    sc_mutex_destroy(&aoa->mutex);
+    return false;
 }
 
 void
@@ -343,8 +343,8 @@ run_aoa_thread(void *data) {
 
         if (ack_to_wait != SC_SEQUENCE_INVALID) {
             LOGD("Waiting ack from server sequence=%" PRIu64_, ack_to_wait);
-            // Do not block the loop indefinitely if the ack never comes (it should
-            // never happen)
+            // Do not block the loop indefinitely if the ack never comes (it
+            // should never happen)
             sc_tick deadline = sc_tick_now() + SC_TICK_FROM_MS(500);
             enum sc_acksync_wait_result result =
                 sc_acksync_wait(aoa->acksync, ack_to_wait, deadline);

app/src/cli.c

@@ -52,6 +52,7 @@
 #define OPT_NO_CLIPBOARD_AUTOSYNC  1032
 #define OPT_TCPIP                  1033
 #define OPT_RAW_KEY_EVENTS         1034
+#define OPT_NO_DOWNSIZE_ON_ERROR   1035
 
 struct sc_option {
     char shortopt;
@@ -178,7 +179,8 @@ static const struct sc_option options[] = {
                 "directly: `adb shell am start -a "
                 "android.settings.HARD_KEYBOARD_SETTINGS`.\n"
                 "However, the option is only available when the HID keyboard "
-                "is enabled (or a physical keyboard is connected).",
+                "is enabled (or a physical keyboard is connected).\n"
+                "Also see --hid-mouse.",
     },
     {
         .shortopt = 'h',
@@ -214,6 +216,18 @@ static const struct sc_option options[] = {
         .text = "Limit the frame rate of screen capture (officially supported "
                 "since Android 10, but may work on earlier versions).",
     },
+    {
+        .shortopt = 'M',
+        .longopt = "hid-mouse",
+        .text = "Simulate a physical mouse by using HID over AOAv2.\n"
+                "In this mode, the computer mouse is captured to control the "
+                "device directly (relative mouse mode).\n"
+                "LAlt, LSuper or RSuper toggle the 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"
+                "Also see --hid-keyboard.",
+    },
     {
         .shortopt = 'm',
         .longopt = "max-size",
@@ -223,6 +237,13 @@ static const struct sc_option options[] = {
                 "is preserved.\n"
                 "Default is 0 (unlimited).",
     },
+    {
+        .longopt_id = OPT_NO_DOWNSIZE_ON_ERROR,
+        .longopt = "no-downsize-on-error",
+        .text = "By default, on MediaCodec error, scrcpy automatically tries "
+                "again with a lower definition.\n"
+                "This option disables this behavior.",
+    },
     {
         .longopt_id = OPT_NO_CLIPBOARD_AUTOSYNC,
         .longopt = "no-clipboard-autosync",
@@ -240,11 +261,8 @@ static const struct sc_option options[] = {
     {
         .shortopt = 'N',
         .longopt = "no-display",
-        .text = "Do not display device (only when screen recording "
-#ifdef HAVE_V4L2
-                "or V4L2 sink "
-#endif
-                "is enabled).",
+        .text = "Do not display device (only when screen recording or V4L2 "
+                "sink is enabled).",
     },
     {
         .longopt_id = OPT_NO_KEY_REPEAT,
@@ -381,14 +399,14 @@ static const struct sc_option options[] = {
                 "Default is 0 (not forced): the local port used for "
                 "establishing the tunnel will be used.",
     },
-#ifdef HAVE_V4L2
     {
         .longopt_id = OPT_V4L2_SINK,
         .longopt = "v4l2-sink",
         .argdesc = "/dev/videoN",
         .text = "Output to v4l2loopback device.\n"
                 "It requires to lock the video orientation (see "
-                "--lock-video-orientation).",
+                "--lock-video-orientation).\n"
+                "This feature is only available on Linux.",
     },
     {
         .longopt_id = OPT_V4L2_BUFFER,
@@ -398,9 +416,9 @@ static const struct sc_option options[] = {
                 "frames. This increases latency to compensate for jitter.\n"
                 "This option is similar to --display-buffer, but specific to "
                 "V4L2 sink.\n"
-                "Default is 0 (no buffering).",
+                "Default is 0 (no buffering).\n"
+                "This option is only available on Linux.",
     },
-#endif
     {
         .shortopt = 'V',
         .longopt = "verbosity",
@@ -1121,7 +1139,7 @@ parse_log_level(const char *s, enum sc_log_level *log_level) {
 }
 
 // item is a list of mod keys separated by '+' (e.g. "lctrl+lalt")
-// returns a bitwise-or of SC_MOD_* constants (or 0 on error)
+// returns a bitwise-or of SC_SHORTCUT_MOD_* constants (or 0 on error)
 static unsigned
 parse_shortcut_mods_item(const char *item, size_t len) {
     unsigned mod = 0;
@@ -1139,17 +1157,17 @@ parse_shortcut_mods_item(const char *item, size_t len) {
     ((sizeof(literal)-1 == len) && !memcmp(literal, s, len))
 
         if (STREQ("lctrl", item, key_len)) {
-            mod |= SC_MOD_LCTRL;
+            mod |= SC_SHORTCUT_MOD_LCTRL;
         } else if (STREQ("rctrl", item, key_len)) {
-            mod |= SC_MOD_RCTRL;
+            mod |= SC_SHORTCUT_MOD_RCTRL;
         } else if (STREQ("lalt", item, key_len)) {
-            mod |= SC_MOD_LALT;
+            mod |= SC_SHORTCUT_MOD_LALT;
         } else if (STREQ("ralt", item, key_len)) {
-            mod |= SC_MOD_RALT;
+            mod |= SC_SHORTCUT_MOD_RALT;
         } else if (STREQ("lsuper", item, key_len)) {
-            mod |= SC_MOD_LSUPER;
+            mod |= SC_SHORTCUT_MOD_LSUPER;
         } else if (STREQ("rsuper", item, key_len)) {
-            mod |= SC_MOD_RSUPER;
+            mod |= SC_SHORTCUT_MOD_RSUPER;
         } else {
             LOGE("Unknown modifier key: %.*s "
                  "(must be one of: lctrl, rctrl, lalt, ralt, lsuper, rsuper)",
@@ -1300,8 +1318,14 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
                 args->help = true;
                 break;
             case 'K':
+#ifdef HAVE_AOA_HID
                 opts->keyboard_input_mode = SC_KEYBOARD_INPUT_MODE_HID;
                 break;
+#else
+                LOGE("HID over AOA (-K/--hid-keyboard) is not supported on "
+                     "this platform. It is only available on Linux.");
+                return false;
+#endif
             case OPT_MAX_FPS:
                 if (!parse_max_fps(optarg, &opts->max_fps)) {
                     return false;
@@ -1312,6 +1336,15 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
                     return false;
                 }
                 break;
+            case 'M':
+#ifdef HAVE_AOA_HID
+                opts->mouse_input_mode = SC_MOUSE_INPUT_MODE_HID;
+                break;
+#else
+                LOGE("HID over AOA (-M/--hid-mouse) is not supported on this"
+                     "platform. It is only available on Linux.");
+                return false;
+#endif
             case OPT_LOCK_VIDEO_ORIENTATION:
                 if (!parse_lock_video_orientation(optarg,
                         &opts->lock_video_orientation)) {
@@ -1464,15 +1497,26 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
                 opts->tcpip = true;
                 opts->tcpip_dst = optarg;
                 break;
-#ifdef HAVE_V4L2
+            case OPT_NO_DOWNSIZE_ON_ERROR:
+                opts->downsize_on_error = false;
+                break;
             case OPT_V4L2_SINK:
+#ifdef HAVE_V4L2
                 opts->v4l2_device = optarg;
                 break;
+#else
+                LOGE("V4L2 (--v4l2-sink) is only available on Linux.");
+                return false;
+#endif
             case OPT_V4L2_BUFFER:
+#ifdef HAVE_V4L2
                 if (!parse_buffering_time(optarg, &opts->v4l2_buffer)) {
                     return false;
                 }
                 break;
+#else
+                LOGE("V4L2 (--v4l2-buffer) is only available on Linux.");
+                return false;
 #endif
             default:
                 // getopt prints the error message on stderr
@@ -1501,11 +1545,18 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
         return false;
     }
 
-    if (opts->v4l2_device && opts->lock_video_orientation
-                             == SC_LOCK_VIDEO_ORIENTATION_UNLOCKED) {
-        LOGI("Video orientation is locked for v4l2 sink. "
-             "See --lock-video-orientation.");
-        opts->lock_video_orientation = SC_LOCK_VIDEO_ORIENTATION_INITIAL;
+    if (opts->v4l2_device) {
+        if (opts->lock_video_orientation ==
+                SC_LOCK_VIDEO_ORIENTATION_UNLOCKED) {
+            LOGI("Video orientation is locked for v4l2 sink. "
+                 "See --lock-video-orientation.");
+            opts->lock_video_orientation = SC_LOCK_VIDEO_ORIENTATION_INITIAL;
+        }
+
+        // V4L2 could not handle size change.
+        // Do not log because downsizing on error is the default behavior,
+        // not an explicit request from the user.
+        opts->downsize_on_error = false;
     }
 
     if (opts->v4l2_buffer && !opts->v4l2_device) {
@@ -1540,14 +1591,23 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
         }
     }
 
-    if (!opts->control && opts->turn_screen_off) {
-        LOGE("Could not request to turn screen off if control is disabled");
-        return false;
-    }
-
-    if (!opts->control && opts->stay_awake) {
-        LOGE("Could not request to stay awake if control is disabled");
-        return false;
+    if (!opts->control) {
+        if (opts->turn_screen_off) {
+            LOGE("Could not request to turn screen off if control is disabled");
+            return false;
+        }
+        if (opts->stay_awake) {
+            LOGE("Could not request to stay awake if control is disabled");
+            return false;
+        }
+        if (opts->show_touches) {
+            LOGE("Could not request to show touches if control is disabled");
+            return false;
+        }
+        if (opts->power_off_on_close) {
+            LOGE("Could not request power off on close if control is disabled");
+            return false;
+        }
     }
 
     return true;

app/src/common.h

@@ -7,6 +7,7 @@
 #define ARRAY_LEN(a) (sizeof(a) / sizeof(a[0]))
 #define MIN(X,Y) (X) < (Y) ? (X) : (Y)
 #define MAX(X,Y) (X) > (Y) ? (X) : (Y)
+#define CLAMP(V,X,Y) MIN( MAX((V),(X)), (Y) )
 
 #define container_of(ptr, type, member) \
     ((type *) (((char *) (ptr)) - offsetof(type, member)))

app/src/control_msg.c

@@ -89,7 +89,7 @@ to_fixed_point_16(float f) {
 }
 
 size_t
-control_msg_serialize(const struct control_msg *msg, unsigned char *buf) {
+sc_control_msg_serialize(const struct sc_control_msg *msg, unsigned char *buf) {
     buf[0] = msg->type;
     switch (msg->type) {
         case CONTROL_MSG_TYPE_INJECT_KEYCODE:
@@ -119,7 +119,8 @@ control_msg_serialize(const struct control_msg *msg, unsigned char *buf) {
                              (uint32_t) msg->inject_scroll_event.hscroll);
             buffer_write32be(&buf[17],
                              (uint32_t) msg->inject_scroll_event.vscroll);
-            return 21;
+            buffer_write32be(&buf[21], msg->inject_scroll_event.buttons);
+            return 25;
         case CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON:
             buf[1] = msg->inject_keycode.action;
             return 2;
@@ -150,7 +151,7 @@ control_msg_serialize(const struct control_msg *msg, unsigned char *buf) {
 }
 
 void
-control_msg_log(const struct control_msg *msg) {
+sc_control_msg_log(const struct sc_control_msg *msg) {
 #define LOG_CMSG(fmt, ...) LOGV("input: " fmt, ## __VA_ARGS__)
     switch (msg->type) {
         case CONTROL_MSG_TYPE_INJECT_KEYCODE:
@@ -192,11 +193,12 @@ control_msg_log(const struct control_msg *msg) {
         }
         case CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT:
             LOG_CMSG("scroll position=%" PRIi32 ",%" PRIi32 " hscroll=%" PRIi32
-                         " vscroll=%" PRIi32,
+                         " vscroll=%" PRIi32 " buttons=%06lx",
                      msg->inject_scroll_event.position.point.x,
                      msg->inject_scroll_event.position.point.y,
                      msg->inject_scroll_event.hscroll,
-                     msg->inject_scroll_event.vscroll);
+                     msg->inject_scroll_event.vscroll,
+                     (long) msg->inject_scroll_event.buttons);
             break;
         case CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON:
             LOG_CMSG("back-or-screen-on %s",
@@ -235,7 +237,7 @@ control_msg_log(const struct control_msg *msg) {
 }
 
 void
-control_msg_destroy(struct control_msg *msg) {
+sc_control_msg_destroy(struct sc_control_msg *msg) {
     switch (msg->type) {
         case CONTROL_MSG_TYPE_INJECT_TEXT:
             free(msg->inject_text.text);

app/src/control_msg.h

@@ -20,7 +20,7 @@
 #define POINTER_ID_MOUSE UINT64_C(-1)
 #define POINTER_ID_VIRTUAL_FINGER UINT64_C(-2)
 
-enum control_msg_type {
+enum sc_control_msg_type {
     CONTROL_MSG_TYPE_INJECT_KEYCODE,
     CONTROL_MSG_TYPE_INJECT_TEXT,
     CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT,
@@ -47,8 +47,8 @@ enum get_clipboard_copy_key {
     GET_CLIPBOARD_COPY_KEY_CUT,
 };
 
-struct control_msg {
-    enum control_msg_type type;
+struct sc_control_msg {
+    enum sc_control_msg_type type;
     union {
         struct {
             enum android_keyevent_action action;
@@ -70,6 +70,7 @@ struct control_msg {
             struct sc_position position;
             int32_t hscroll;
             int32_t vscroll;
+            enum android_motionevent_buttons buttons;
         } inject_scroll_event;
         struct {
             enum android_keyevent_action action; // action for the BACK key
@@ -92,12 +93,12 @@ struct control_msg {
 // buf size must be at least CONTROL_MSG_MAX_SIZE
 // return the number of bytes written
 size_t
-control_msg_serialize(const struct control_msg *msg, unsigned char *buf);
+sc_control_msg_serialize(const struct sc_control_msg *msg, unsigned char *buf);
 
 void
-control_msg_log(const struct control_msg *msg);
+sc_control_msg_log(const struct sc_control_msg *msg);
 
 void
-control_msg_destroy(struct control_msg *msg);
+sc_control_msg_destroy(struct sc_control_msg *msg);
 
 #endif

app/src/controller.c

@@ -5,8 +5,8 @@
 #include "util/log.h"
 
 bool
-controller_init(struct controller *controller, sc_socket control_socket,
-                struct sc_acksync *acksync) {
+sc_controller_init(struct sc_controller *controller, sc_socket control_socket,
+                   struct sc_acksync *acksync) {
     cbuf_init(&controller->queue);
 
     bool ok = receiver_init(&controller->receiver, control_socket, acksync);
@@ -34,23 +34,23 @@ controller_init(struct controller *controller, sc_socket control_socket,
 }
 
 void
-controller_destroy(struct controller *controller) {
+sc_controller_destroy(struct sc_controller *controller) {
     sc_cond_destroy(&controller->msg_cond);
     sc_mutex_destroy(&controller->mutex);
 
-    struct control_msg msg;
+    struct sc_control_msg msg;
     while (cbuf_take(&controller->queue, &msg)) {
-        control_msg_destroy(&msg);
+        sc_control_msg_destroy(&msg);
     }
 
     receiver_destroy(&controller->receiver);
 }
 
 bool
-controller_push_msg(struct controller *controller,
-                    const struct control_msg *msg) {
+sc_controller_push_msg(struct sc_controller *controller,
+                       const struct sc_control_msg *msg) {
     if (sc_get_log_level() <= SC_LOG_LEVEL_VERBOSE) {
-        control_msg_log(msg);
+        sc_control_msg_log(msg);
     }
 
     sc_mutex_lock(&controller->mutex);
@@ -64,9 +64,10 @@ controller_push_msg(struct controller *controller,
 }
 
 static bool
-process_msg(struct controller *controller, const struct control_msg *msg) {
+process_msg(struct sc_controller *controller,
+            const struct sc_control_msg *msg) {
     static unsigned char serialized_msg[CONTROL_MSG_MAX_SIZE];
-    size_t length = control_msg_serialize(msg, serialized_msg);
+    size_t length = sc_control_msg_serialize(msg, serialized_msg);
     if (!length) {
         return false;
     }
@@ -77,7 +78,7 @@ process_msg(struct controller *controller, const struct control_msg *msg) {
 
 static int
 run_controller(void *data) {
-    struct controller *controller = data;
+    struct sc_controller *controller = data;
 
     for (;;) {
         sc_mutex_lock(&controller->mutex);
@@ -89,14 +90,14 @@ run_controller(void *data) {
             sc_mutex_unlock(&controller->mutex);
             break;
         }
-        struct control_msg msg;
+        struct sc_control_msg msg;
         bool non_empty = cbuf_take(&controller->queue, &msg);
         assert(non_empty);
         (void) non_empty;
         sc_mutex_unlock(&controller->mutex);
 
         bool ok = process_msg(controller, &msg);
-        control_msg_destroy(&msg);
+        sc_control_msg_destroy(&msg);
         if (!ok) {
             LOGD("Could not write msg to socket");
             break;
@@ -106,7 +107,7 @@ run_controller(void *data) {
 }
 
 bool
-controller_start(struct controller *controller) {
+sc_controller_start(struct sc_controller *controller) {
     LOGD("Starting controller thread");
 
     bool ok = sc_thread_create(&controller->thread, run_controller,
@@ -117,7 +118,7 @@ controller_start(struct controller *controller) {
     }
 
     if (!receiver_start(&controller->receiver)) {
-        controller_stop(controller);
+        sc_controller_stop(controller);
         sc_thread_join(&controller->thread, NULL);
         return false;
     }
@@ -126,7 +127,7 @@ controller_start(struct controller *controller) {
 }
 
 void
-controller_stop(struct controller *controller) {
+sc_controller_stop(struct sc_controller *controller) {
     sc_mutex_lock(&controller->mutex);
     controller->stopped = true;
     sc_cond_signal(&controller->msg_cond);
@@ -134,7 +135,7 @@ controller_stop(struct controller *controller) {
 }
 
 void
-controller_join(struct controller *controller) {
+sc_controller_join(struct sc_controller *controller) {
     sc_thread_join(&controller->thread, NULL);
     receiver_join(&controller->receiver);
 }

app/src/controller.h

@@ -12,36 +12,36 @@
 #include "util/net.h"
 #include "util/thread.h"
 
-struct control_msg_queue CBUF(struct control_msg, 64);
+struct sc_control_msg_queue CBUF(struct sc_control_msg, 64);
 
-struct controller {
+struct sc_controller {
     sc_socket control_socket;
     sc_thread thread;
     sc_mutex mutex;
     sc_cond msg_cond;
     bool stopped;
-    struct control_msg_queue queue;
+    struct sc_control_msg_queue queue;
     struct receiver receiver;
 };
 
 bool
-controller_init(struct controller *controller, sc_socket control_socket,
-                struct sc_acksync *acksync);
+sc_controller_init(struct sc_controller *controller, sc_socket control_socket,
+                   struct sc_acksync *acksync);
 
 void
-controller_destroy(struct controller *controller);
+sc_controller_destroy(struct sc_controller *controller);
 
 bool
-controller_start(struct controller *controller);
+sc_controller_start(struct sc_controller *controller);
 
 void
-controller_stop(struct controller *controller);
+sc_controller_stop(struct sc_controller *controller);
 
 void
-controller_join(struct controller *controller);
+sc_controller_join(struct sc_controller *controller);
 
 bool
-controller_push_msg(struct controller *controller,
-                    const struct control_msg *msg);
+sc_controller_push_msg(struct sc_controller *controller,
+                       const struct sc_control_msg *msg);
 
 #endif

app/src/decoder.h

@@ -6,6 +6,7 @@
 #include "trait/packet_sink.h"
 
 #include <stdbool.h>
+#include <libavcodec/avcodec.h>
 #include <libavformat/avformat.h>
 
 #define DECODER_MAX_SINKS 2

app/src/file_handler.c

@@ -1,178 +0,0 @@
-#include "file_handler.h"
-
-#include <assert.h>
-#include <string.h>
-
-#include "adb.h"
-#include "util/log.h"
-#include "util/process_intr.h"
-
-#define DEFAULT_PUSH_TARGET "/sdcard/Download/"
-
-static void
-file_handler_request_destroy(struct file_handler_request *req) {
-    free(req->file);
-}
-
-bool
-file_handler_init(struct file_handler *file_handler, const char *serial,
-                  const char *push_target) {
-    assert(serial);
-
-    cbuf_init(&file_handler->queue);
-
-    bool ok = sc_mutex_init(&file_handler->mutex);
-    if (!ok) {
-        return false;
-    }
-
-    ok = sc_cond_init(&file_handler->event_cond);
-    if (!ok) {
-        sc_mutex_destroy(&file_handler->mutex);
-        return false;
-    }
-
-    ok = sc_intr_init(&file_handler->intr);
-    if (!ok) {
-        sc_cond_destroy(&file_handler->event_cond);
-        sc_mutex_destroy(&file_handler->mutex);
-        return false;
-    }
-
-    file_handler->serial = strdup(serial);
-    if (!file_handler->serial) {
-        LOG_OOM();
-        sc_intr_destroy(&file_handler->intr);
-        sc_cond_destroy(&file_handler->event_cond);
-        sc_mutex_destroy(&file_handler->mutex);
-        return false;
-    }
-
-    // lazy initialization
-    file_handler->initialized = false;
-
-    file_handler->stopped = false;
-
-    file_handler->push_target = push_target ? push_target : DEFAULT_PUSH_TARGET;
-
-    return true;
-}
-
-void
-file_handler_destroy(struct file_handler *file_handler) {
-    sc_cond_destroy(&file_handler->event_cond);
-    sc_mutex_destroy(&file_handler->mutex);
-    sc_intr_destroy(&file_handler->intr);
-    free(file_handler->serial);
-
-    struct file_handler_request req;
-    while (cbuf_take(&file_handler->queue, &req)) {
-        file_handler_request_destroy(&req);
-    }
-}
-
-bool
-file_handler_request(struct file_handler *file_handler,
-                     file_handler_action_t action, char *file) {
-    // start file_handler if it's used for the first time
-    if (!file_handler->initialized) {
-        if (!file_handler_start(file_handler)) {
-            return false;
-        }
-        file_handler->initialized = true;
-    }
-
-    LOGI("Request to %s %s", action == ACTION_INSTALL_APK ? "install" : "push",
-                             file);
-    struct file_handler_request req = {
-        .action = action,
-        .file = file,
-    };
-
-    sc_mutex_lock(&file_handler->mutex);
-    bool was_empty = cbuf_is_empty(&file_handler->queue);
-    bool res = cbuf_push(&file_handler->queue, req);
-    if (was_empty) {
-        sc_cond_signal(&file_handler->event_cond);
-    }
-    sc_mutex_unlock(&file_handler->mutex);
-    return res;
-}
-
-static int
-run_file_handler(void *data) {
-    struct file_handler *file_handler = data;
-    struct sc_intr *intr = &file_handler->intr;
-
-    const char *serial = file_handler->serial;
-    assert(serial);
-
-    const char *push_target = file_handler->push_target;
-    assert(push_target);
-
-    for (;;) {
-        sc_mutex_lock(&file_handler->mutex);
-        while (!file_handler->stopped && cbuf_is_empty(&file_handler->queue)) {
-            sc_cond_wait(&file_handler->event_cond, &file_handler->mutex);
-        }
-        if (file_handler->stopped) {
-            // stop immediately, do not process further events
-            sc_mutex_unlock(&file_handler->mutex);
-            break;
-        }
-        struct file_handler_request req;
-        bool non_empty = cbuf_take(&file_handler->queue, &req);
-        assert(non_empty);
-        (void) non_empty;
-        sc_mutex_unlock(&file_handler->mutex);
-
-        if (req.action == ACTION_INSTALL_APK) {
-            LOGI("Installing %s...", req.file);
-            bool ok = adb_install(intr, serial, req.file, 0);
-            if (ok) {
-                LOGI("%s successfully installed", req.file);
-            } else {
-                LOGE("Failed to install %s", req.file);
-            }
-        } else {
-            LOGI("Pushing %s...", req.file);
-            bool ok = adb_push(intr, serial, req.file, push_target, 0);
-            if (ok) {
-                LOGI("%s successfully pushed to %s", req.file, push_target);
-            } else {
-                LOGE("Failed to push %s to %s", req.file, push_target);
-            }
-        }
-
-        file_handler_request_destroy(&req);
-    }
-    return 0;
-}
-
-bool
-file_handler_start(struct file_handler *file_handler) {
-    LOGD("Starting file_handler thread");
-
-    bool ok = sc_thread_create(&file_handler->thread, run_file_handler,
-                               "scrcpy-file", file_handler);
-    if (!ok) {
-        LOGC("Could not start file_handler thread");
-        return false;
-    }
-
-    return true;
-}
-
-void
-file_handler_stop(struct file_handler *file_handler) {
-    sc_mutex_lock(&file_handler->mutex);
-    file_handler->stopped = true;
-    sc_cond_signal(&file_handler->event_cond);
-    sc_intr_interrupt(&file_handler->intr);
-    sc_mutex_unlock(&file_handler->mutex);
-}
-
-void
-file_handler_join(struct file_handler *file_handler) {
-    sc_thread_join(&file_handler->thread, NULL);
-}

app/src/file_handler.h

@@ -1,60 +0,0 @@
-#ifndef FILE_HANDLER_H
-#define FILE_HANDLER_H
-
-#include "common.h"
-
-#include <stdbool.h>
-
-#include "adb.h"
-#include "util/cbuf.h"
-#include "util/thread.h"
-#include "util/intr.h"
-
-typedef enum {
-    ACTION_INSTALL_APK,
-    ACTION_PUSH_FILE,
-} file_handler_action_t;
-
-struct file_handler_request {
-    file_handler_action_t action;
-    char *file;
-};
-
-struct file_handler_request_queue CBUF(struct file_handler_request, 16);
-
-struct file_handler {
-    char *serial;
-    const char *push_target;
-    sc_thread thread;
-    sc_mutex mutex;
-    sc_cond event_cond;
-    bool stopped;
-    bool initialized;
-    struct file_handler_request_queue queue;
-
-    struct sc_intr intr;
-};
-
-bool
-file_handler_init(struct file_handler *file_handler, const char *serial,
-                  const char *push_target);
-
-void
-file_handler_destroy(struct file_handler *file_handler);
-
-bool
-file_handler_start(struct file_handler *file_handler);
-
-void
-file_handler_stop(struct file_handler *file_handler);
-
-void
-file_handler_join(struct file_handler *file_handler);
-
-// take ownership of file, and will free() it
-bool
-file_handler_request(struct file_handler *file_handler,
-                     file_handler_action_t action,
-                     char *file);
-
-#endif

app/src/file_pusher.c

@@ -0,0 +1,178 @@
+#include "file_pusher.h"
+
+#include <assert.h>
+#include <string.h>
+
+#include "adb.h"
+#include "util/log.h"
+#include "util/process_intr.h"
+
+#define DEFAULT_PUSH_TARGET "/sdcard/Download/"
+
+static void
+sc_file_pusher_request_destroy(struct sc_file_pusher_request *req) {
+    free(req->file);
+}
+
+bool
+sc_file_pusher_init(struct sc_file_pusher *fp, const char *serial,
+                    const char *push_target) {
+    assert(serial);
+
+    cbuf_init(&fp->queue);
+
+    bool ok = sc_mutex_init(&fp->mutex);
+    if (!ok) {
+        return false;
+    }
+
+    ok = sc_cond_init(&fp->event_cond);
+    if (!ok) {
+        sc_mutex_destroy(&fp->mutex);
+        return false;
+    }
+
+    ok = sc_intr_init(&fp->intr);
+    if (!ok) {
+        sc_cond_destroy(&fp->event_cond);
+        sc_mutex_destroy(&fp->mutex);
+        return false;
+    }
+
+    fp->serial = strdup(serial);
+    if (!fp->serial) {
+        LOG_OOM();
+        sc_intr_destroy(&fp->intr);
+        sc_cond_destroy(&fp->event_cond);
+        sc_mutex_destroy(&fp->mutex);
+        return false;
+    }
+
+    // lazy initialization
+    fp->initialized = false;
+
+    fp->stopped = false;
+
+    fp->push_target = push_target ? push_target : DEFAULT_PUSH_TARGET;
+
+    return true;
+}
+
+void
+sc_file_pusher_destroy(struct sc_file_pusher *fp) {
+    sc_cond_destroy(&fp->event_cond);
+    sc_mutex_destroy(&fp->mutex);
+    sc_intr_destroy(&fp->intr);
+    free(fp->serial);
+
+    struct sc_file_pusher_request req;
+    while (cbuf_take(&fp->queue, &req)) {
+        sc_file_pusher_request_destroy(&req);
+    }
+}
+
+bool
+sc_file_pusher_request(struct sc_file_pusher *fp,
+                       enum sc_file_pusher_action action, char *file) {
+    // start file_pusher if it's used for the first time
+    if (!fp->initialized) {
+        if (!sc_file_pusher_start(fp)) {
+            return false;
+        }
+        fp->initialized = true;
+    }
+
+    LOGI("Request to %s %s", action == SC_FILE_PUSHER_ACTION_INSTALL_APK
+                                 ? "install" : "push",
+                             file);
+    struct sc_file_pusher_request req = {
+        .action = action,
+        .file = file,
+    };
+
+    sc_mutex_lock(&fp->mutex);
+    bool was_empty = cbuf_is_empty(&fp->queue);
+    bool res = cbuf_push(&fp->queue, req);
+    if (was_empty) {
+        sc_cond_signal(&fp->event_cond);
+    }
+    sc_mutex_unlock(&fp->mutex);
+    return res;
+}
+
+static int
+run_file_pusher(void *data) {
+    struct sc_file_pusher *fp = data;
+    struct sc_intr *intr = &fp->intr;
+
+    const char *serial = fp->serial;
+    assert(serial);
+
+    const char *push_target = fp->push_target;
+    assert(push_target);
+
+    for (;;) {
+        sc_mutex_lock(&fp->mutex);
+        while (!fp->stopped && cbuf_is_empty(&fp->queue)) {
+            sc_cond_wait(&fp->event_cond, &fp->mutex);
+        }
+        if (fp->stopped) {
+            // stop immediately, do not process further events
+            sc_mutex_unlock(&fp->mutex);
+            break;
+        }
+        struct sc_file_pusher_request req;
+        bool non_empty = cbuf_take(&fp->queue, &req);
+        assert(non_empty);
+        (void) non_empty;
+        sc_mutex_unlock(&fp->mutex);
+
+        if (req.action == SC_FILE_PUSHER_ACTION_INSTALL_APK) {
+            LOGI("Installing %s...", req.file);
+            bool ok = adb_install(intr, serial, req.file, 0);
+            if (ok) {
+                LOGI("%s successfully installed", req.file);
+            } else {
+                LOGE("Failed to install %s", req.file);
+            }
+        } else {
+            LOGI("Pushing %s...", req.file);
+            bool ok = adb_push(intr, serial, req.file, push_target, 0);
+            if (ok) {
+                LOGI("%s successfully pushed to %s", req.file, push_target);
+            } else {
+                LOGE("Failed to push %s to %s", req.file, push_target);
+            }
+        }
+
+        sc_file_pusher_request_destroy(&req);
+    }
+    return 0;
+}
+
+bool
+sc_file_pusher_start(struct sc_file_pusher *fp) {
+    LOGD("Starting file_pusher thread");
+
+    bool ok = sc_thread_create(&fp->thread, run_file_pusher, "scrcpy-file", fp);
+    if (!ok) {
+        LOGC("Could not start file_pusher thread");
+        return false;
+    }
+
+    return true;
+}
+
+void
+sc_file_pusher_stop(struct sc_file_pusher *fp) {
+    sc_mutex_lock(&fp->mutex);
+    fp->stopped = true;
+    sc_cond_signal(&fp->event_cond);
+    sc_intr_interrupt(&fp->intr);
+    sc_mutex_unlock(&fp->mutex);
+}
+
+void
+sc_file_pusher_join(struct sc_file_pusher *fp) {
+    sc_thread_join(&fp->thread, NULL);
+}

app/src/file_pusher.h

@@ -0,0 +1,59 @@
+#ifndef SC_FILE_PUSHER_H
+#define SC_FILE_PUSHER_H
+
+#include "common.h"
+
+#include <stdbool.h>
+
+#include "adb.h"
+#include "util/cbuf.h"
+#include "util/thread.h"
+#include "util/intr.h"
+
+enum sc_file_pusher_action {
+    SC_FILE_PUSHER_ACTION_INSTALL_APK,
+    SC_FILE_PUSHER_ACTION_PUSH_FILE,
+};
+
+struct sc_file_pusher_request {
+    enum sc_file_pusher_action action;
+    char *file;
+};
+
+struct sc_file_pusher_request_queue CBUF(struct sc_file_pusher_request, 16);
+
+struct sc_file_pusher {
+    char *serial;
+    const char *push_target;
+    sc_thread thread;
+    sc_mutex mutex;
+    sc_cond event_cond;
+    bool stopped;
+    bool initialized;
+    struct sc_file_pusher_request_queue queue;
+
+    struct sc_intr intr;
+};
+
+bool
+sc_file_pusher_init(struct sc_file_pusher *fp, const char *serial,
+                    const char *push_target);
+
+void
+sc_file_pusher_destroy(struct sc_file_pusher *fp);
+
+bool
+sc_file_pusher_start(struct sc_file_pusher *fp);
+
+void
+sc_file_pusher_stop(struct sc_file_pusher *fp);
+
+void
+sc_file_pusher_join(struct sc_file_pusher *fp);
+
+// take ownership of file, and will free() it
+bool
+sc_file_pusher_request(struct sc_file_pusher *fp,
+                       enum sc_file_pusher_action action, char *file);
+
+#endif

app/src/hid_keyboard.c

@@ -1,8 +1,8 @@
 #include "hid_keyboard.h"
 
 #include <assert.h>
-#include <SDL2/SDL_events.h>
 
+#include "input_events.h"
 #include "util/log.h"
 
 /** Downcast key processor to hid_keyboard */
@@ -126,31 +126,105 @@ static const unsigned char keyboard_report_desc[]  = {
     0xC0
 };
 
+/**
+ * A keyboard HID event is 8 bytes long:
+ *
+ *  - byte 0: modifiers (1 flag per modifier key, 8 possible modifier keys)
+ *  - byte 1: reserved (always 0)
+ *  - bytes 2 to 7: pressed keys (6 at most)
+ *
+ *                   7 6 5 4 3 2 1 0
+ *                  +---------------+
+ *         byte 0:  |. . . . . . . .| modifiers
+ *                  +---------------+
+ *                   ^ ^ ^ ^ ^ ^ ^ ^
+ *                   | | | | | | | `- left Ctrl
+ *                   | | | | | | `--- left Shift
+ *                   | | | | | `----- left Alt
+ *                   | | | | `------- left Gui
+ *                   | | | `--------- right Ctrl
+ *                   | | `----------- right Shift
+ *                   | `------------- right Alt
+ *                   `--------------- right Gui
+ *
+ *                  +---------------+
+ *         byte 1:  |0 0 0 0 0 0 0 0| reserved
+ *                  +---------------+
+ *
+ *                  +---------------+
+ *   bytes 2 to 7:  |. . . . . . . .| scancode of 1st key pressed
+ *                  +---------------+
+ *                  |. . . . . . . .| scancode of 2nd key pressed
+ *                  +---------------+
+ *                  |. . . . . . . .| scancode of 3rd key pressed
+ *                  +---------------+
+ *                  |. . . . . . . .| scancode of 4th key pressed
+ *                  +---------------+
+ *                  |. . . . . . . .| scancode of 5th key pressed
+ *                  +---------------+
+ *                  |. . . . . . . .| scancode of 6th key pressed
+ *                  +---------------+
+ *
+ * If there are less than 6 keys pressed, the last items are set to 0.
+ * For example, if A and W are pressed:
+ *
+ *                  +---------------+
+ *   bytes 2 to 7:  |0 0 0 0 0 1 0 0| A is pressed (scancode = 4)
+ *                  +---------------+
+ *                  |0 0 0 1 1 0 1 0| W is pressed (scancode = 26)
+ *                  +---------------+
+ *                  |0 0 0 0 0 0 0 0| ^
+ *                  +---------------+ |  only 2 keys are pressed, the
+ *                  |0 0 0 0 0 0 0 0| |  remaining items are set to 0
+ *                  +---------------+ |
+ *                  |0 0 0 0 0 0 0 0| |
+ *                  +---------------+ |
+ *                  |0 0 0 0 0 0 0 0| v
+ *                  +---------------+
+ *
+ * Pressing more than 6 keys is not supported. If this happens (typically,
+ * never in practice), report a "phantom state":
+ *
+ *                  +---------------+
+ *   bytes 2 to 7:  |0 0 0 0 0 0 0 1| ^
+ *                  +---------------+ |
+ *                  |0 0 0 0 0 0 0 1| |  more than 6 keys pressed:
+ *                  +---------------+ |  the list is filled with a special
+ *                  |0 0 0 0 0 0 0 1| |  rollover error code (0x01)
+ *                  +---------------+ |
+ *                  |0 0 0 0 0 0 0 1| |
+ *                  +---------------+ |
+ *                  |0 0 0 0 0 0 0 1| |
+ *                  +---------------+ |
+ *                  |0 0 0 0 0 0 0 1| v
+ *                  +---------------+
+ */
+
 static unsigned char
-sdl_keymod_to_hid_modifiers(SDL_Keymod mod) {
+sdl_keymod_to_hid_modifiers(uint16_t mod) {
     unsigned char modifiers = HID_MODIFIER_NONE;
-    if (mod & KMOD_LCTRL) {
+    if (mod & SC_MOD_LCTRL) {
         modifiers |= HID_MODIFIER_LEFT_CONTROL;
     }
-    if (mod & KMOD_LSHIFT) {
+    if (mod & SC_MOD_LSHIFT) {
         modifiers |= HID_MODIFIER_LEFT_SHIFT;
     }
-    if (mod & KMOD_LALT) {
+    if (mod & SC_MOD_LALT) {
         modifiers |= HID_MODIFIER_LEFT_ALT;
     }
-    if (mod & KMOD_LGUI) {
+    if (mod & SC_MOD_LGUI) {
         modifiers |= HID_MODIFIER_LEFT_GUI;
     }
-    if (mod & KMOD_RCTRL) {
+    if (mod & SC_MOD_RCTRL) {
         modifiers |= HID_MODIFIER_RIGHT_CONTROL;
     }
-    if (mod & KMOD_RSHIFT) {
+    if (mod & SC_MOD_RSHIFT) {
         modifiers |= HID_MODIFIER_RIGHT_SHIFT;
     }
-    if (mod & KMOD_RALT) {
+    if (mod & SC_MOD_RALT) {
         modifiers |= HID_MODIFIER_RIGHT_ALT;
     }
-    if (mod & KMOD_RGUI) {
+    if (mod & SC_MOD_RGUI) {
         modifiers |= HID_MODIFIER_RIGHT_GUI;
     }
     return modifiers;
@@ -174,15 +248,15 @@ sc_hid_keyboard_event_init(struct sc_hid_event *hid_event) {
 }
 
 static inline bool
-scancode_is_modifier(SDL_Scancode scancode) {
-    return scancode >= SDL_SCANCODE_LCTRL && scancode <= SDL_SCANCODE_RGUI;
+scancode_is_modifier(enum sc_scancode scancode) {
+    return scancode >= SC_SCANCODE_LCTRL && scancode <= SC_SCANCODE_RGUI;
 }
 
 static bool
 convert_hid_keyboard_event(struct sc_hid_keyboard *kb,
                            struct sc_hid_event *hid_event,
-                           const SDL_KeyboardEvent *event) {
-    SDL_Scancode scancode = event->keysym.scancode;
+                           const struct sc_key_event *event) {
+    enum sc_scancode scancode = event->scancode;
     assert(scancode >= 0);
 
     // SDL also generates events when only modifiers are pressed, we cannot
@@ -198,11 +272,11 @@ convert_hid_keyboard_event(struct sc_hid_keyboard *kb,
         return false;
     }
 
-    unsigned char modifiers = sdl_keymod_to_hid_modifiers(event->keysym.mod);
+    unsigned char modifiers = sdl_keymod_to_hid_modifiers(event->mods_state);
 
     if (scancode < SC_HID_KEYBOARD_KEYS) {
         // Pressed is true and released is false
-        kb->keys[scancode] = (event->type == SDL_KEYDOWN);
+        kb->keys[scancode] = (event->action == SC_ACTION_DOWN);
         LOGV("keys[%02x] = %s", scancode,
              kb->keys[scancode] ? "true" : "false");
     }
@@ -217,7 +291,7 @@ convert_hid_keyboard_event(struct sc_hid_keyboard *kb,
             // USB HID protocol says that if keys exceeds report count, a
             // phantom state should be reported
             if (keys_pressed_count >= HID_KEYBOARD_MAX_KEYS) {
-                // Pantom state:
+                // Phantom state:
                 //  - Modifiers
                 //  - Reserved
                 //  - ErrorRollOver * HID_MAX_KEYS
@@ -232,17 +306,17 @@ convert_hid_keyboard_event(struct sc_hid_keyboard *kb,
 
 end:
     LOGV("hid keyboard: key %-4s scancode=%02x (%u) mod=%02x",
-         event->type == SDL_KEYDOWN ? "down" : "up", event->keysym.scancode,
-         event->keysym.scancode, modifiers);
+         event->action == SC_ACTION_DOWN ? "down" : "up", event->scancode,
+         event->scancode, modifiers);
 
     return true;
 }
 
 
 static bool
-push_mod_lock_state(struct sc_hid_keyboard *kb, uint16_t sdl_mod) {
-    bool capslock = sdl_mod & KMOD_CAPS;
-    bool numlock = sdl_mod & KMOD_NUM;
+push_mod_lock_state(struct sc_hid_keyboard *kb, uint16_t mods_state) {
+    bool capslock = mods_state & SC_MOD_CAPS;
+    bool numlock = mods_state & SC_MOD_NUM;
     if (!capslock && !numlock) {
         // Nothing to do
         return true;
@@ -254,8 +328,6 @@ push_mod_lock_state(struct sc_hid_keyboard *kb, uint16_t sdl_mod) {
         return false;
     }
 
-#define SC_SCANCODE_CAPSLOCK SDL_SCANCODE_CAPSLOCK
-#define SC_SCANCODE_NUMLOCK SDL_SCANCODE_NUMLOCKCLEAR
     unsigned i = 0;
     if (capslock) {
         hid_event.buffer[HID_KEYBOARD_INDEX_KEYS + i] = SC_SCANCODE_CAPSLOCK;
@@ -279,7 +351,7 @@ push_mod_lock_state(struct sc_hid_keyboard *kb, uint16_t sdl_mod) {
 
 static void
 sc_key_processor_process_key(struct sc_key_processor *kp,
-                             const SDL_KeyboardEvent *event,
+                             const struct sc_key_event *event,
                              uint64_t ack_to_wait) {
     if (event->repeat) {
         // In USB HID protocol, key repeat is handled by the host (Android), so
@@ -295,7 +367,7 @@ sc_key_processor_process_key(struct sc_key_processor *kp,
         if (!kb->mod_lock_synchronized) {
             // Inject CAPSLOCK and/or NUMLOCK if necessary to synchronize
             // keyboard state
-            if (push_mod_lock_state(kb, event->keysym.mod)) {
+            if (push_mod_lock_state(kb, event->mods_state)) {
                 kb->mod_lock_synchronized = true;
             }
         }
@@ -315,15 +387,6 @@ sc_key_processor_process_key(struct sc_key_processor *kp,
     }
 }
 
-static void
-sc_key_processor_process_text(struct sc_key_processor *kp,
-                              const SDL_TextInputEvent *event) {
-    (void) kp;
-    (void) event;
-
-    // Never forward text input via HID (all the keys are injected separately)
-}
-
 bool
 sc_hid_keyboard_init(struct sc_hid_keyboard *kb, struct sc_aoa *aoa) {
     kb->aoa = aoa;
@@ -343,7 +406,9 @@ sc_hid_keyboard_init(struct sc_hid_keyboard *kb, struct sc_aoa *aoa) {
 
     static const struct sc_key_processor_ops ops = {
         .process_key = sc_key_processor_process_key,
-        .process_text = sc_key_processor_process_text,
+        // Never forward text input via HID (all the keys are injected
+        // separately)
+        .process_text = NULL,
     };
 
     // Clipboard synchronization is requested over the control socket, while HID

app/src/hid_mouse.c

@@ -0,0 +1,267 @@
+#include "hid_mouse.h"
+
+#include <assert.h>
+
+#include "input_events.h"
+#include "util/log.h"
+
+/** Downcast mouse processor to hid_mouse */
+#define DOWNCAST(MP) container_of(MP, struct sc_hid_mouse, mouse_processor)
+
+#define HID_MOUSE_ACCESSORY_ID 2
+
+// 1 byte for buttons + padding, 1 byte for X position, 1 byte for Y position
+#define HID_MOUSE_EVENT_SIZE 4
+
+/**
+ * Mouse descriptor from the specification:
+ * <https://www.usb.org/sites/default/files/hid1_11.pdf>
+ *
+ * Appendix E (p71): §E.10 Report Descriptor (Mouse)
+ *
+ * The usage tags (like Wheel) are listed in "HID Usage Tables":
+ * <https://www.usb.org/sites/default/files/documents/hut1_12v2.pdf>
+ * §4 Generic Desktop Page (0x01) (p26)
+ */
+static const unsigned char mouse_report_desc[]  = {
+    // Usage Page (Generic Desktop)
+    0x05, 0x01,
+    // Usage (Mouse)
+    0x09, 0x02,
+
+    // Collection (Application)
+    0xA1, 0x01,
+
+    // Usage (Pointer)
+    0x09, 0x01,
+
+    // Collection (Physical)
+    0xA1, 0x00,
+
+    // Usage Page (Buttons)
+    0x05, 0x09,
+
+    // Usage Minimum (1)
+    0x19, 0x01,
+     // Usage Maximum (5)
+    0x29, 0x05,
+    // Logical Minimum (0)
+    0x15, 0x00,
+    // Logical Maximum (1)
+    0x25, 0x01,
+    // Report Count (5)
+    0x95, 0x05,
+    // Report Size (1)
+    0x75, 0x01,
+    // Input (Data, Variable, Absolute): 5 buttons bits
+    0x81, 0x02,
+
+    // Report Count (1)
+    0x95, 0x01,
+    // Report Size (3)
+    0x75, 0x03,
+    // Input (Constant): 3 bits padding
+    0x81, 0x01,
+
+    // Usage Page (Generic Desktop)
+    0x05, 0x01,
+    // Usage (X)
+    0x09, 0x30,
+    // Usage (Y)
+    0x09, 0x31,
+    // Usage (Wheel)
+    0x09, 0x38,
+    // Local Minimum (-127)
+    0x15, 0x81,
+    // Local Maximum (127)
+    0x25, 0x7F,
+    // Report Size (8)
+    0x75, 0x08,
+    // Report Count (3)
+    0x95, 0x03,
+    // Input (Data, Variable, Relative): 3 position bytes (X, Y, Wheel)
+    0x81, 0x06,
+
+    // End Collection
+    0xC0,
+
+    // End Collection
+    0xC0,
+};
+
+/**
+ * A mouse HID event is 3 bytes long:
+ *
+ *  - byte 0: buttons state
+ *  - byte 1: relative x motion (signed byte from -127 to 127)
+ *  - byte 2: relative y motion (signed byte from -127 to 127)
+ *
+ *                   7 6 5 4 3 2 1 0
+ *                  +---------------+
+ *         byte 0:  |0 0 0 . . . . .| buttons state
+ *                  +---------------+
+ *                         ^ ^ ^ ^ ^
+ *                         | | | | `- left button
+ *                         | | | `--- right button
+ *                         | | `----- middle button
+ *                         | `------- button 4
+ *                         `--------- button 5
+ *
+ *                  +---------------+
+ *         byte 1:  |. . . . . . . .| relative x motion
+ *                  +---------------+
+ *         byte 2:  |. . . . . . . .| relative y motion
+ *                  +---------------+
+ *         byte 3:  |. . . . . . . .| wheel motion (-1, 0 or 1)
+ *                  +---------------+
+ *
+ * As an example, here is the report for a motion of (x=5, y=-4) with left
+ * button pressed:
+ *
+ *                  +---------------+
+ *                  |0 0 0 0 0 0 0 1| left button pressed
+ *                  +---------------+
+ *                  |0 0 0 0 0 1 0 1| horizontal motion (x = 5)
+ *                  +---------------+
+ *                  |1 1 1 1 1 1 0 0| relative y motion (y = -4)
+ *                  +---------------+
+ *                  |0 0 0 0 0 0 0 0| wheel motion
+ *                  +---------------+
+ */
+
+static bool
+sc_hid_mouse_event_init(struct sc_hid_event *hid_event) {
+    unsigned char *buffer = calloc(1, HID_MOUSE_EVENT_SIZE);
+    if (!buffer) {
+        LOG_OOM();
+        return false;
+    }
+
+    sc_hid_event_init(hid_event, HID_MOUSE_ACCESSORY_ID, buffer,
+                      HID_MOUSE_EVENT_SIZE);
+    return true;
+}
+
+static unsigned char
+buttons_state_to_hid_buttons(uint8_t buttons_state) {
+    unsigned char c = 0;
+    if (buttons_state & SC_MOUSE_BUTTON_LEFT) {
+        c |= 1 << 0;
+    }
+    if (buttons_state & SC_MOUSE_BUTTON_RIGHT) {
+        c |= 1 << 1;
+    }
+    if (buttons_state & SC_MOUSE_BUTTON_MIDDLE) {
+        c |= 1 << 2;
+    }
+    if (buttons_state & SC_MOUSE_BUTTON_X1) {
+        c |= 1 << 3;
+    }
+    if (buttons_state & SC_MOUSE_BUTTON_X2) {
+        c |= 1 << 4;
+    }
+    return c;
+}
+
+static void
+sc_mouse_processor_process_mouse_motion(struct sc_mouse_processor *mp,
+                                    const struct sc_mouse_motion_event *event) {
+    struct sc_hid_mouse *mouse = DOWNCAST(mp);
+
+    struct sc_hid_event hid_event;
+    if (!sc_hid_mouse_event_init(&hid_event)) {
+        return;
+    }
+
+    unsigned char *buffer = hid_event.buffer;
+    buffer[0] = buttons_state_to_hid_buttons(event->buttons_state);
+    buffer[1] = CLAMP(event->xrel, -127, 127);
+    buffer[2] = CLAMP(event->yrel, -127, 127);
+    buffer[3] = 0; // wheel coordinates only used for scrolling
+
+    if (!sc_aoa_push_hid_event(mouse->aoa, &hid_event)) {
+        sc_hid_event_destroy(&hid_event);
+        LOGW("Could request HID event");
+    }
+}
+
+static void
+sc_mouse_processor_process_mouse_click(struct sc_mouse_processor *mp,
+                                   const struct sc_mouse_click_event *event) {
+    struct sc_hid_mouse *mouse = DOWNCAST(mp);
+
+    struct sc_hid_event hid_event;
+    if (!sc_hid_mouse_event_init(&hid_event)) {
+        return;
+    }
+
+    unsigned char *buffer = hid_event.buffer;
+    buffer[0] = buttons_state_to_hid_buttons(event->buttons_state);
+    buffer[1] = 0; // no x motion
+    buffer[2] = 0; // no y motion
+    buffer[3] = 0; // wheel coordinates only used for scrolling
+
+    if (!sc_aoa_push_hid_event(mouse->aoa, &hid_event)) {
+        sc_hid_event_destroy(&hid_event);
+        LOGW("Could request HID event");
+    }
+}
+
+static void
+sc_mouse_processor_process_mouse_scroll(struct sc_mouse_processor *mp,
+                                    const struct sc_mouse_scroll_event *event) {
+    struct sc_hid_mouse *mouse = DOWNCAST(mp);
+
+    struct sc_hid_event hid_event;
+    if (!sc_hid_mouse_event_init(&hid_event)) {
+        return;
+    }
+
+    unsigned char *buffer = hid_event.buffer;
+    buffer[0] = 0; // buttons state irrelevant (and unknown)
+    buffer[1] = 0; // no x motion
+    buffer[2] = 0; // no y motion
+    // In practice, vscroll is always -1, 0 or 1, but in theory other values
+    // are possible
+    buffer[3] = CLAMP(event->vscroll, -127, 127);
+    // Horizontal scrolling ignored
+
+    if (!sc_aoa_push_hid_event(mouse->aoa, &hid_event)) {
+        sc_hid_event_destroy(&hid_event);
+        LOGW("Could request HID event");
+    }
+}
+
+bool
+sc_hid_mouse_init(struct sc_hid_mouse *mouse, struct sc_aoa *aoa) {
+    mouse->aoa = aoa;
+
+    bool ok = sc_aoa_setup_hid(aoa, HID_MOUSE_ACCESSORY_ID, mouse_report_desc,
+                               ARRAY_LEN(mouse_report_desc));
+    if (!ok) {
+        LOGW("Register HID mouse failed");
+        return false;
+    }
+
+    static const struct sc_mouse_processor_ops ops = {
+        .process_mouse_motion = sc_mouse_processor_process_mouse_motion,
+        .process_mouse_click = sc_mouse_processor_process_mouse_click,
+        .process_mouse_scroll = sc_mouse_processor_process_mouse_scroll,
+        // Touch events not supported (coordinates are not relative)
+        .process_touch = NULL,
+    };
+
+    mouse->mouse_processor.ops = &ops;
+
+    mouse->mouse_processor.relative_mode = true;
+
+    return true;
+}
+
+void
+sc_hid_mouse_destroy(struct sc_hid_mouse *mouse) {
+    bool ok = sc_aoa_unregister_hid(mouse->aoa, HID_MOUSE_ACCESSORY_ID);
+    if (!ok) {
+        LOGW("Could not unregister HID mouse");
+    }
+}

app/src/hid_mouse.h

@@ -0,0 +1,23 @@
+#ifndef SC_HID_MOUSE_H
+#define SC_HID_MOUSE_H
+
+#include "common.h"
+
+#include <stdbool.h>
+
+#include "aoa_hid.h"
+#include "trait/mouse_processor.h"
+
+struct sc_hid_mouse {
+    struct sc_mouse_processor mouse_processor; // mouse processor trait
+
+    struct sc_aoa *aoa;
+};
+
+bool
+sc_hid_mouse_init(struct sc_hid_mouse *mouse, struct sc_aoa *aoa);
+
+void
+sc_hid_mouse_destroy(struct sc_hid_mouse *mouse);
+
+#endif

app/src/icon.c

@@ -2,6 +2,7 @@
 
 #include <assert.h>
 #include <stdbool.h>
+#include <libavcodec/avcodec.h>
 #include <libavformat/avformat.h>
 #include <libavutil/pixdesc.h>
 #include <libavutil/pixfmt.h>
@@ -85,7 +86,7 @@ decode_image(const char *path) {
 
     AVCodecParameters *params = ctx->streams[stream]->codecpar;
 
-    AVCodec *codec = avcodec_find_decoder(params->codec_id);
+    const AVCodec *codec = avcodec_find_decoder(params->codec_id);
     if (!codec) {
         LOGE("Could not find image decoder");
         goto close_input;

app/src/input_events.h

@@ -0,0 +1,380 @@
+#ifndef SC_INPUT_EVENTS_H
+#define SC_INPUT_EVENTS_H
+
+#include "common.h"
+
+#include <assert.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <SDL2/SDL_events.h>
+
+#include "coords.h"
+
+/* The representation of input events in scrcpy is very close to the SDL API,
+ * for simplicity.
+ *
+ * This scrcpy input events API is designed to be consumed by input event
+ * processors (sc_key_processor and sc_mouse_processor, see app/src/trait/).
+ *
+ * One major semantic difference between SDL input events and scrcpy input
+ * events is their frame of reference (for mouse and touch events): SDL events
+ * coordinates are expressed in SDL window coordinates (the visible UI), while
+ * scrcpy events are expressed in device frame coordinates.
+ *
+ * In particular, the window may be visually scaled or rotated (with --rotation
+ * or MOD+Left/Right), but this does not impact scrcpy input events (contrary
+ * to SDL input events). This allows to abstract these display details from the
+ * input event processors (and to make them independent from the "screen").
+ *
+ * For many enums below, the values are purposely the same as the SDL
+ * constants (though not all SDL values are represented), so that the
+ * implementation to convert from the SDL version to the scrcpy version is
+ * straightforward.
+ *
+ * In practice, there are 3 levels of input events:
+ *  1. SDL input events (as received from SDL)
+ *  2. scrcpy input events (this API)
+ *  3. the key/mouse processors input events (Android API or HID events)
+ *
+ * An input event is first received (1), then (if accepted) converted to an
+ * scrcpy input event (2), then submitted to the relevant key/mouse processor,
+ * which (if accepted) is converted to an Android event (to be sent to the
+ * server) or to an HID event (to be sent over USB/AOA directly).
+ */
+
+enum sc_mod {
+    SC_MOD_LSHIFT = KMOD_LSHIFT,
+    SC_MOD_RSHIFT = KMOD_RSHIFT,
+    SC_MOD_LCTRL = KMOD_LCTRL,
+    SC_MOD_RCTRL = KMOD_RCTRL,
+    SC_MOD_LALT = KMOD_LALT,
+    SC_MOD_RALT = KMOD_RALT,
+    SC_MOD_LGUI = KMOD_LGUI,
+    SC_MOD_RGUI = KMOD_RGUI,
+
+    SC_MOD_NUM = KMOD_NUM,
+    SC_MOD_CAPS = KMOD_CAPS,
+};
+
+enum sc_action {
+    SC_ACTION_DOWN, // key or button pressed
+    SC_ACTION_UP, // key or button released
+};
+
+enum sc_keycode {
+    SC_KEYCODE_UNKNOWN = SDLK_UNKNOWN,
+
+    SC_KEYCODE_RETURN = SDLK_RETURN,
+    SC_KEYCODE_ESCAPE = SDLK_ESCAPE,
+    SC_KEYCODE_BACKSPACE = SDLK_BACKSPACE,
+    SC_KEYCODE_TAB = SDLK_TAB,
+    SC_KEYCODE_SPACE = SDLK_SPACE,
+    SC_KEYCODE_EXCLAIM = SDLK_EXCLAIM,
+    SC_KEYCODE_QUOTEDBL = SDLK_QUOTEDBL,
+    SC_KEYCODE_HASH = SDLK_HASH,
+    SC_KEYCODE_PERCENT = SDLK_PERCENT,
+    SC_KEYCODE_DOLLAR = SDLK_DOLLAR,
+    SC_KEYCODE_AMPERSAND = SDLK_AMPERSAND,
+    SC_KEYCODE_QUOTE = SDLK_QUOTE,
+    SC_KEYCODE_LEFTPAREN = SDLK_LEFTPAREN,
+    SC_KEYCODE_RIGHTPAREN = SDLK_RIGHTPAREN,
+    SC_KEYCODE_ASTERISK = SDLK_ASTERISK,
+    SC_KEYCODE_PLUS = SDLK_PLUS,
+    SC_KEYCODE_COMMA = SDLK_COMMA,
+    SC_KEYCODE_MINUS = SDLK_MINUS,
+    SC_KEYCODE_PERIOD = SDLK_PERIOD,
+    SC_KEYCODE_SLASH = SDLK_SLASH,
+    SC_KEYCODE_0 = SDLK_0,
+    SC_KEYCODE_1 = SDLK_1,
+    SC_KEYCODE_2 = SDLK_2,
+    SC_KEYCODE_3 = SDLK_3,
+    SC_KEYCODE_4 = SDLK_4,
+    SC_KEYCODE_5 = SDLK_5,
+    SC_KEYCODE_6 = SDLK_6,
+    SC_KEYCODE_7 = SDLK_7,
+    SC_KEYCODE_8 = SDLK_8,
+    SC_KEYCODE_9 = SDLK_9,
+    SC_KEYCODE_COLON = SDLK_COLON,
+    SC_KEYCODE_SEMICOLON = SDLK_SEMICOLON,
+    SC_KEYCODE_LESS = SDLK_LESS,
+    SC_KEYCODE_EQUALS = SDLK_EQUALS,
+    SC_KEYCODE_GREATER = SDLK_GREATER,
+    SC_KEYCODE_QUESTION = SDLK_QUESTION,
+    SC_KEYCODE_AT = SDLK_AT,
+
+    SC_KEYCODE_LEFTBRACKET = SDLK_LEFTBRACKET,
+    SC_KEYCODE_BACKSLASH = SDLK_BACKSLASH,
+    SC_KEYCODE_RIGHTBRACKET = SDLK_RIGHTBRACKET,
+    SC_KEYCODE_CARET = SDLK_CARET,
+    SC_KEYCODE_UNDERSCORE = SDLK_UNDERSCORE,
+    SC_KEYCODE_BACKQUOTE = SDLK_BACKQUOTE,
+    SC_KEYCODE_a = SDLK_a,
+    SC_KEYCODE_b = SDLK_b,
+    SC_KEYCODE_c = SDLK_c,
+    SC_KEYCODE_d = SDLK_d,
+    SC_KEYCODE_e = SDLK_e,
+    SC_KEYCODE_f = SDLK_f,
+    SC_KEYCODE_g = SDLK_g,
+    SC_KEYCODE_h = SDLK_h,
+    SC_KEYCODE_i = SDLK_i,
+    SC_KEYCODE_j = SDLK_j,
+    SC_KEYCODE_k = SDLK_k,
+    SC_KEYCODE_l = SDLK_l,
+    SC_KEYCODE_m = SDLK_m,
+    SC_KEYCODE_n = SDLK_n,
+    SC_KEYCODE_o = SDLK_o,
+    SC_KEYCODE_p = SDLK_p,
+    SC_KEYCODE_q = SDLK_q,
+    SC_KEYCODE_r = SDLK_r,
+    SC_KEYCODE_s = SDLK_s,
+    SC_KEYCODE_t = SDLK_t,
+    SC_KEYCODE_u = SDLK_u,
+    SC_KEYCODE_v = SDLK_v,
+    SC_KEYCODE_w = SDLK_w,
+    SC_KEYCODE_x = SDLK_x,
+    SC_KEYCODE_y = SDLK_y,
+    SC_KEYCODE_z = SDLK_z,
+
+    SC_KEYCODE_CAPSLOCK = SDLK_CAPSLOCK,
+
+    SC_KEYCODE_F1 = SDLK_F1,
+    SC_KEYCODE_F2 = SDLK_F2,
+    SC_KEYCODE_F3 = SDLK_F3,
+    SC_KEYCODE_F4 = SDLK_F4,
+    SC_KEYCODE_F5 = SDLK_F5,
+    SC_KEYCODE_F6 = SDLK_F6,
+    SC_KEYCODE_F7 = SDLK_F7,
+    SC_KEYCODE_F8 = SDLK_F8,
+    SC_KEYCODE_F9 = SDLK_F9,
+    SC_KEYCODE_F10 = SDLK_F10,
+    SC_KEYCODE_F11 = SDLK_F11,
+    SC_KEYCODE_F12 = SDLK_F12,
+
+    SC_KEYCODE_PRINTSCREEN = SDLK_PRINTSCREEN,
+    SC_KEYCODE_SCROLLLOCK = SDLK_SCROLLLOCK,
+    SC_KEYCODE_PAUSE = SDLK_PAUSE,
+    SC_KEYCODE_INSERT = SDLK_INSERT,
+    SC_KEYCODE_HOME = SDLK_HOME,
+    SC_KEYCODE_PAGEUP = SDLK_PAGEUP,
+    SC_KEYCODE_DELETE = SDLK_DELETE,
+    SC_KEYCODE_END = SDLK_END,
+    SC_KEYCODE_PAGEDOWN = SDLK_PAGEDOWN,
+    SC_KEYCODE_RIGHT = SDLK_RIGHT,
+    SC_KEYCODE_LEFT = SDLK_LEFT,
+    SC_KEYCODE_DOWN = SDLK_DOWN,
+    SC_KEYCODE_UP = SDLK_UP,
+
+    SC_KEYCODE_KP_DIVIDE = SDLK_KP_DIVIDE,
+    SC_KEYCODE_KP_MULTIPLY = SDLK_KP_MULTIPLY,
+    SC_KEYCODE_KP_MINUS = SDLK_KP_MINUS,
+    SC_KEYCODE_KP_PLUS = SDLK_KP_PLUS,
+    SC_KEYCODE_KP_ENTER = SDLK_KP_ENTER,
+    SC_KEYCODE_KP_1 = SDLK_KP_1,
+    SC_KEYCODE_KP_2 = SDLK_KP_2,
+    SC_KEYCODE_KP_3 = SDLK_KP_3,
+    SC_KEYCODE_KP_4 = SDLK_KP_4,
+    SC_KEYCODE_KP_5 = SDLK_KP_5,
+    SC_KEYCODE_KP_6 = SDLK_KP_6,
+    SC_KEYCODE_KP_7 = SDLK_KP_7,
+    SC_KEYCODE_KP_8 = SDLK_KP_8,
+    SC_KEYCODE_KP_9 = SDLK_KP_9,
+    SC_KEYCODE_KP_0 = SDLK_KP_0,
+    SC_KEYCODE_KP_PERIOD = SDLK_KP_PERIOD,
+    SC_KEYCODE_KP_EQUALS = SDLK_KP_EQUALS,
+    SC_KEYCODE_KP_LEFTPAREN = SDLK_KP_LEFTPAREN,
+    SC_KEYCODE_KP_RIGHTPAREN = SDLK_KP_RIGHTPAREN,
+
+    SC_KEYCODE_LCTRL = SDLK_LCTRL,
+    SC_KEYCODE_LSHIFT = SDLK_LSHIFT,
+    SC_KEYCODE_LALT = SDLK_LALT,
+    SC_KEYCODE_LGUI = SDLK_LGUI,
+    SC_KEYCODE_RCTRL = SDLK_RCTRL,
+    SC_KEYCODE_RSHIFT = SDLK_RSHIFT,
+    SC_KEYCODE_RALT = SDLK_RALT,
+    SC_KEYCODE_RGUI = SDLK_RGUI,
+};
+
+enum sc_scancode {
+    SC_SCANCODE_UNKNOWN = SDL_SCANCODE_UNKNOWN,
+
+    SC_SCANCODE_A = SDL_SCANCODE_A,
+    SC_SCANCODE_B = SDL_SCANCODE_B,
+    SC_SCANCODE_C = SDL_SCANCODE_C,
+    SC_SCANCODE_D = SDL_SCANCODE_D,
+    SC_SCANCODE_E = SDL_SCANCODE_E,
+    SC_SCANCODE_F = SDL_SCANCODE_F,
+    SC_SCANCODE_G = SDL_SCANCODE_G,
+    SC_SCANCODE_H = SDL_SCANCODE_H,
+    SC_SCANCODE_I = SDL_SCANCODE_I,
+    SC_SCANCODE_J = SDL_SCANCODE_J,
+    SC_SCANCODE_K = SDL_SCANCODE_K,
+    SC_SCANCODE_L = SDL_SCANCODE_L,
+    SC_SCANCODE_M = SDL_SCANCODE_M,
+    SC_SCANCODE_N = SDL_SCANCODE_N,
+    SC_SCANCODE_O = SDL_SCANCODE_O,
+    SC_SCANCODE_P = SDL_SCANCODE_P,
+    SC_SCANCODE_Q = SDL_SCANCODE_Q,
+    SC_SCANCODE_R = SDL_SCANCODE_R,
+    SC_SCANCODE_S = SDL_SCANCODE_S,
+    SC_SCANCODE_T = SDL_SCANCODE_T,
+    SC_SCANCODE_U = SDL_SCANCODE_U,
+    SC_SCANCODE_V = SDL_SCANCODE_V,
+    SC_SCANCODE_W = SDL_SCANCODE_W,
+    SC_SCANCODE_X = SDL_SCANCODE_X,
+    SC_SCANCODE_Y = SDL_SCANCODE_Y,
+    SC_SCANCODE_Z = SDL_SCANCODE_Z,
+
+    SC_SCANCODE_1 = SDL_SCANCODE_1,
+    SC_SCANCODE_2 = SDL_SCANCODE_2,
+    SC_SCANCODE_3 = SDL_SCANCODE_3,
+    SC_SCANCODE_4 = SDL_SCANCODE_4,
+    SC_SCANCODE_5 = SDL_SCANCODE_5,
+    SC_SCANCODE_6 = SDL_SCANCODE_6,
+    SC_SCANCODE_7 = SDL_SCANCODE_7,
+    SC_SCANCODE_8 = SDL_SCANCODE_8,
+    SC_SCANCODE_9 = SDL_SCANCODE_9,
+    SC_SCANCODE_0 = SDL_SCANCODE_0,
+
+    SC_SCANCODE_RETURN = SDL_SCANCODE_RETURN,
+    SC_SCANCODE_ESCAPE = SDL_SCANCODE_ESCAPE,
+    SC_SCANCODE_BACKSPACE = SDL_SCANCODE_BACKSPACE,
+    SC_SCANCODE_TAB = SDL_SCANCODE_TAB,
+    SC_SCANCODE_SPACE = SDL_SCANCODE_SPACE,
+
+    SC_SCANCODE_MINUS = SDL_SCANCODE_MINUS,
+    SC_SCANCODE_EQUALS = SDL_SCANCODE_EQUALS,
+    SC_SCANCODE_LEFTBRACKET = SDL_SCANCODE_LEFTBRACKET,
+    SC_SCANCODE_RIGHTBRACKET = SDL_SCANCODE_RIGHTBRACKET,
+    SC_SCANCODE_BACKSLASH = SDL_SCANCODE_BACKSLASH,
+    SC_SCANCODE_NONUSHASH = SDL_SCANCODE_NONUSHASH,
+    SC_SCANCODE_SEMICOLON = SDL_SCANCODE_SEMICOLON,
+    SC_SCANCODE_APOSTROPHE = SDL_SCANCODE_APOSTROPHE,
+    SC_SCANCODE_GRAVE = SDL_SCANCODE_GRAVE,
+    SC_SCANCODE_COMMA = SDL_SCANCODE_COMMA,
+    SC_SCANCODE_PERIOD = SDL_SCANCODE_PERIOD,
+    SC_SCANCODE_SLASH = SDL_SCANCODE_SLASH,
+
+    SC_SCANCODE_CAPSLOCK = SDL_SCANCODE_CAPSLOCK,
+
+    SC_SCANCODE_F1 = SDL_SCANCODE_F1,
+    SC_SCANCODE_F2 = SDL_SCANCODE_F2,
+    SC_SCANCODE_F3 = SDL_SCANCODE_F3,
+    SC_SCANCODE_F4 = SDL_SCANCODE_F4,
+    SC_SCANCODE_F5 = SDL_SCANCODE_F5,
+    SC_SCANCODE_F6 = SDL_SCANCODE_F6,
+    SC_SCANCODE_F7 = SDL_SCANCODE_F7,
+    SC_SCANCODE_F8 = SDL_SCANCODE_F8,
+    SC_SCANCODE_F9 = SDL_SCANCODE_F9,
+    SC_SCANCODE_F10 = SDL_SCANCODE_F10,
+    SC_SCANCODE_F11 = SDL_SCANCODE_F11,
+    SC_SCANCODE_F12 = SDL_SCANCODE_F12,
+
+    SC_SCANCODE_PRINTSCREEN = SDL_SCANCODE_PRINTSCREEN,
+    SC_SCANCODE_SCROLLLOCK = SDL_SCANCODE_SCROLLLOCK,
+    SC_SCANCODE_PAUSE = SDL_SCANCODE_PAUSE,
+    SC_SCANCODE_INSERT = SDL_SCANCODE_INSERT,
+    SC_SCANCODE_HOME = SDL_SCANCODE_HOME,
+    SC_SCANCODE_PAGEUP = SDL_SCANCODE_PAGEUP,
+    SC_SCANCODE_DELETE = SDL_SCANCODE_DELETE,
+    SC_SCANCODE_END = SDL_SCANCODE_END,
+    SC_SCANCODE_PAGEDOWN = SDL_SCANCODE_PAGEDOWN,
+    SC_SCANCODE_RIGHT = SDL_SCANCODE_RIGHT,
+    SC_SCANCODE_LEFT = SDL_SCANCODE_LEFT,
+    SC_SCANCODE_DOWN = SDL_SCANCODE_DOWN,
+    SC_SCANCODE_UP = SDL_SCANCODE_UP,
+
+    SC_SCANCODE_NUMLOCK = SDL_SCANCODE_NUMLOCKCLEAR,
+    SC_SCANCODE_KP_DIVIDE = SDL_SCANCODE_KP_DIVIDE,
+    SC_SCANCODE_KP_MULTIPLY = SDL_SCANCODE_KP_MULTIPLY,
+    SC_SCANCODE_KP_MINUS = SDL_SCANCODE_KP_MINUS,
+    SC_SCANCODE_KP_PLUS = SDL_SCANCODE_KP_PLUS,
+    SC_SCANCODE_KP_ENTER = SDL_SCANCODE_KP_ENTER,
+    SC_SCANCODE_KP_1 = SDL_SCANCODE_KP_1,
+    SC_SCANCODE_KP_2 = SDL_SCANCODE_KP_2,
+    SC_SCANCODE_KP_3 = SDL_SCANCODE_KP_3,
+    SC_SCANCODE_KP_4 = SDL_SCANCODE_KP_4,
+    SC_SCANCODE_KP_5 = SDL_SCANCODE_KP_5,
+    SC_SCANCODE_KP_6 = SDL_SCANCODE_KP_6,
+    SC_SCANCODE_KP_7 = SDL_SCANCODE_KP_7,
+    SC_SCANCODE_KP_8 = SDL_SCANCODE_KP_8,
+    SC_SCANCODE_KP_9 = SDL_SCANCODE_KP_9,
+    SC_SCANCODE_KP_0 = SDL_SCANCODE_KP_0,
+    SC_SCANCODE_KP_PERIOD = SDL_SCANCODE_KP_PERIOD,
+
+    SC_SCANCODE_LCTRL = SDL_SCANCODE_LCTRL,
+    SC_SCANCODE_LSHIFT = SDL_SCANCODE_LSHIFT,
+    SC_SCANCODE_LALT = SDL_SCANCODE_LALT,
+    SC_SCANCODE_LGUI = SDL_SCANCODE_LGUI,
+    SC_SCANCODE_RCTRL = SDL_SCANCODE_RCTRL,
+    SC_SCANCODE_RSHIFT = SDL_SCANCODE_RSHIFT,
+    SC_SCANCODE_RALT = SDL_SCANCODE_RALT,
+    SC_SCANCODE_RGUI = SDL_SCANCODE_RGUI,
+};
+
+// On purpose, only use the "mask" values (1, 2, 4, 8, 16) for a single button,
+// to avoid unnecessary conversions (and confusion).
+enum sc_mouse_button {
+    SC_MOUSE_BUTTON_UNKNOWN = 0,
+    SC_MOUSE_BUTTON_LEFT = SDL_BUTTON(SDL_BUTTON_LEFT),
+    SC_MOUSE_BUTTON_RIGHT = SDL_BUTTON(SDL_BUTTON_RIGHT),
+    SC_MOUSE_BUTTON_MIDDLE = SDL_BUTTON(SDL_BUTTON_MIDDLE),
+    SC_MOUSE_BUTTON_X1 = SDL_BUTTON(SDL_BUTTON_X1),
+    SC_MOUSE_BUTTON_X2 = SDL_BUTTON(SDL_BUTTON_X2),
+};
+
+static_assert(sizeof(enum sc_mod) >= sizeof(SDL_Keymod),
+              "SDL_Keymod must be convertible to sc_mod");
+
+static_assert(sizeof(enum sc_keycode) >= sizeof(SDL_Keycode),
+              "SDL_Keycode must be convertible to sc_keycode");
+
+static_assert(sizeof(enum sc_scancode) >= sizeof(SDL_Scancode),
+              "SDL_Scancode must be convertible to sc_scancode");
+
+enum sc_touch_action {
+    SC_TOUCH_ACTION_MOVE,
+    SC_TOUCH_ACTION_DOWN,
+    SC_TOUCH_ACTION_UP,
+};
+
+struct sc_key_event {
+    enum sc_action action;
+    enum sc_keycode keycode;
+    enum sc_scancode scancode;
+    uint16_t mods_state; // bitwise-OR of sc_mod values
+    bool repeat;
+};
+
+struct sc_text_event {
+    const char *text; // not owned
+};
+
+struct sc_mouse_click_event {
+    struct sc_position position;
+    enum sc_action action;
+    enum sc_mouse_button button;
+    uint8_t buttons_state; // bitwise-OR of sc_mouse_button values
+};
+
+struct sc_mouse_scroll_event {
+    struct sc_position position;
+    int32_t hscroll;
+    int32_t vscroll;
+    uint8_t buttons_state; // bitwise-OR of sc_mouse_button values
+};
+
+struct sc_mouse_motion_event {
+    struct sc_position position;
+    int32_t xrel;
+    int32_t yrel;
+    uint8_t buttons_state; // bitwise-OR of sc_mouse_button values
+};
+
+struct sc_touch_event {
+    struct sc_position position;
+    enum sc_touch_action action;
+    uint64_t pointer_id;
+    float pressure;
+};
+
+#endif

app/src/input_manager.c

@@ -3,39 +3,110 @@
 #include <assert.h>
 #include <SDL2/SDL_keycode.h>
 
+#include "input_events.h"
+#include "screen.h"
 #include "util/log.h"
 
-static const int ACTION_DOWN = 1;
-static const int ACTION_UP = 1 << 1;
+static inline uint16_t
+sc_mods_state_from_sdl(uint16_t mods_state) {
+    return mods_state;
+}
+
+static inline enum sc_keycode
+sc_keycode_from_sdl(SDL_Keycode keycode) {
+    return (enum sc_keycode) keycode;
+}
+
+static inline enum sc_scancode
+sc_scancode_from_sdl(SDL_Scancode scancode) {
+    return (enum sc_scancode) scancode;
+}
+
+static inline enum sc_action
+sc_action_from_sdl_keyboard_type(uint32_t type) {
+    assert(type == SDL_KEYDOWN || type == SDL_KEYUP);
+    if (type == SDL_KEYDOWN) {
+        return SC_ACTION_DOWN;
+    }
+    return SC_ACTION_UP;
+}
+
+static inline enum sc_action
+sc_action_from_sdl_mousebutton_type(uint32_t type) {
+    assert(type == SDL_MOUSEBUTTONDOWN || type == SDL_MOUSEBUTTONUP);
+    if (type == SDL_MOUSEBUTTONDOWN) {
+        return SC_ACTION_DOWN;
+    }
+    return SC_ACTION_UP;
+}
+
+static inline enum sc_touch_action
+sc_touch_action_from_sdl(uint32_t type) {
+    assert(type == SDL_FINGERMOTION || type == SDL_FINGERDOWN ||
+           type == SDL_FINGERUP);
+    if (type == SDL_FINGERMOTION) {
+        return SC_TOUCH_ACTION_MOVE;
+    }
+    if (type == SDL_FINGERDOWN) {
+        return SC_TOUCH_ACTION_DOWN;
+    }
+    return SC_TOUCH_ACTION_UP;
+}
+
+static inline enum sc_mouse_button
+sc_mouse_button_from_sdl(uint8_t button) {
+    if (button >= SDL_BUTTON_LEFT && button <= SDL_BUTTON_X2) {
+        // SC_MOUSE_BUTTON_* constants are initialized from SDL_BUTTON(index)
+        return SDL_BUTTON(button);
+    }
+
+    return SC_MOUSE_BUTTON_UNKNOWN;
+}
+
+static inline uint8_t
+sc_mouse_buttons_state_from_sdl(uint32_t buttons_state,
+                                bool forward_all_clicks) {
+    assert(buttons_state < 0x100); // fits in uint8_t
+
+    uint8_t mask = SC_MOUSE_BUTTON_LEFT;
+    if (forward_all_clicks) {
+        mask |= SC_MOUSE_BUTTON_RIGHT
+              | SC_MOUSE_BUTTON_MIDDLE
+              | SC_MOUSE_BUTTON_X1
+              | SC_MOUSE_BUTTON_X2;
+    }
+
+    return buttons_state & mask;
+}
 
 #define SC_SDL_SHORTCUT_MODS_MASK (KMOD_CTRL | KMOD_ALT | KMOD_GUI)
 
 static inline uint16_t
-to_sdl_mod(unsigned mod) {
+to_sdl_mod(unsigned shortcut_mod) {
     uint16_t sdl_mod = 0;
-    if (mod & SC_MOD_LCTRL) {
+    if (shortcut_mod & SC_SHORTCUT_MOD_LCTRL) {
         sdl_mod |= KMOD_LCTRL;
     }
-    if (mod & SC_MOD_RCTRL) {
+    if (shortcut_mod & SC_SHORTCUT_MOD_RCTRL) {
         sdl_mod |= KMOD_RCTRL;
     }
-    if (mod & SC_MOD_LALT) {
+    if (shortcut_mod & SC_SHORTCUT_MOD_LALT) {
         sdl_mod |= KMOD_LALT;
     }
-    if (mod & SC_MOD_RALT) {
+    if (shortcut_mod & SC_SHORTCUT_MOD_RALT) {
         sdl_mod |= KMOD_RALT;
     }
-    if (mod & SC_MOD_LSUPER) {
+    if (shortcut_mod & SC_SHORTCUT_MOD_LSUPER) {
         sdl_mod |= KMOD_LGUI;
     }
-    if (mod & SC_MOD_RSUPER) {
+    if (shortcut_mod & SC_SHORTCUT_MOD_RSUPER) {
         sdl_mod |= KMOD_RGUI;
     }
     return sdl_mod;
 }
 
 static bool
-is_shortcut_mod(struct input_manager *im, uint16_t sdl_mod) {
+is_shortcut_mod(struct sc_input_manager *im, uint16_t sdl_mod) {
     // keep only the relevant modifier keys
     sdl_mod &= SC_SDL_SHORTCUT_MODS_MASK;
 
@@ -51,24 +122,22 @@ is_shortcut_mod(struct input_manager *im, uint16_t sdl_mod) {
 }
 
 void
-input_manager_init(struct input_manager *im, struct controller *controller,
-                   struct screen *screen, struct sc_key_processor *kp,
-                   struct sc_mouse_processor *mp,
-                   const struct scrcpy_options *options) {
-    assert(!options->control || (kp && kp->ops));
-    assert(!options->control || (mp && mp->ops));
+sc_input_manager_init(struct sc_input_manager *im,
+                      const struct sc_input_manager_params *params) {
+    assert(!params->controller || (params->kp && params->kp->ops));
+    assert(!params->controller || (params->mp && params->mp->ops));
 
-    im->controller = controller;
-    im->screen = screen;
-    im->kp = kp;
-    im->mp = mp;
+    im->controller = params->controller;
+    im->fp = params->fp;
+    im->screen = params->screen;
+    im->kp = params->kp;
+    im->mp = params->mp;
 
-    im->control = options->control;
-    im->forward_all_clicks = options->forward_all_clicks;
-    im->legacy_paste = options->legacy_paste;
-    im->clipboard_autosync = options->clipboard_autosync;
+    im->forward_all_clicks = params->forward_all_clicks;
+    im->legacy_paste = params->legacy_paste;
+    im->clipboard_autosync = params->clipboard_autosync;
 
-    const struct sc_shortcut_mods *shortcut_mods = &options->shortcut_mods;
+    const struct sc_shortcut_mods *shortcut_mods = params->shortcut_mods;
     assert(shortcut_mods->count);
     assert(shortcut_mods->count < SC_MAX_SHORTCUT_MODS);
     for (unsigned i = 0; i < shortcut_mods->count; ++i) {
@@ -88,127 +157,112 @@ input_manager_init(struct input_manager *im, struct controller *controller,
 }
 
 static void
-send_keycode(struct controller *controller, enum android_keycode keycode,
-             int actions, const char *name) {
+send_keycode(struct sc_controller *controller, enum android_keycode keycode,
+             enum sc_action action, const char *name) {
     // send DOWN event
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_INJECT_KEYCODE;
+    msg.inject_keycode.action = action == SC_ACTION_DOWN
+                              ? AKEY_EVENT_ACTION_DOWN
+                              : AKEY_EVENT_ACTION_UP;
     msg.inject_keycode.keycode = keycode;
     msg.inject_keycode.metastate = 0;
     msg.inject_keycode.repeat = 0;
 
-    if (actions & ACTION_DOWN) {
-        msg.inject_keycode.action = AKEY_EVENT_ACTION_DOWN;
-        if (!controller_push_msg(controller, &msg)) {
-            LOGW("Could not request 'inject %s (DOWN)'", name);
-            return;
-        }
-    }
-
-    if (actions & ACTION_UP) {
-        msg.inject_keycode.action = AKEY_EVENT_ACTION_UP;
-        if (!controller_push_msg(controller, &msg)) {
-            LOGW("Could not request 'inject %s (UP)'", name);
-        }
+    if (!sc_controller_push_msg(controller, &msg)) {
+        LOGW("Could not request 'inject %s'", name);
     }
 }
 
 static inline void
-action_home(struct controller *controller, int actions) {
-    send_keycode(controller, AKEYCODE_HOME, actions, "HOME");
+action_home(struct sc_controller *controller, enum sc_action action) {
+    send_keycode(controller, AKEYCODE_HOME, action, "HOME");
 }
 
 static inline void
-action_back(struct controller *controller, int actions) {
-    send_keycode(controller, AKEYCODE_BACK, actions, "BACK");
+action_back(struct sc_controller *controller, enum sc_action action) {
+    send_keycode(controller, AKEYCODE_BACK, action, "BACK");
 }
 
 static inline void
-action_app_switch(struct controller *controller, int actions) {
-    send_keycode(controller, AKEYCODE_APP_SWITCH, actions, "APP_SWITCH");
+action_app_switch(struct sc_controller *controller, enum sc_action action) {
+    send_keycode(controller, AKEYCODE_APP_SWITCH, action, "APP_SWITCH");
 }
 
 static inline void
-action_power(struct controller *controller, int actions) {
-    send_keycode(controller, AKEYCODE_POWER, actions, "POWER");
+action_power(struct sc_controller *controller, enum sc_action action) {
+    send_keycode(controller, AKEYCODE_POWER, action, "POWER");
 }
 
 static inline void
-action_volume_up(struct controller *controller, int actions) {
-    send_keycode(controller, AKEYCODE_VOLUME_UP, actions, "VOLUME_UP");
+action_volume_up(struct sc_controller *controller, enum sc_action action) {
+    send_keycode(controller, AKEYCODE_VOLUME_UP, action, "VOLUME_UP");
 }
 
 static inline void
-action_volume_down(struct controller *controller, int actions) {
-    send_keycode(controller, AKEYCODE_VOLUME_DOWN, actions, "VOLUME_DOWN");
+action_volume_down(struct sc_controller *controller, enum sc_action action) {
+    send_keycode(controller, AKEYCODE_VOLUME_DOWN, action, "VOLUME_DOWN");
 }
 
 static inline void
-action_menu(struct controller *controller, int actions) {
-    send_keycode(controller, AKEYCODE_MENU, actions, "MENU");
+action_menu(struct sc_controller *controller, enum sc_action action) {
+    send_keycode(controller, AKEYCODE_MENU, action, "MENU");
 }
 
 // turn the screen on if it was off, press BACK otherwise
 // If the screen is off, it is turned on only on ACTION_DOWN
 static void
-press_back_or_turn_screen_on(struct controller *controller, int actions) {
-    struct control_msg msg;
+press_back_or_turn_screen_on(struct sc_controller *controller,
+                             enum sc_action action) {
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON;
+    msg.back_or_screen_on.action = action == SC_ACTION_DOWN
+                                 ? AKEY_EVENT_ACTION_DOWN
+                                 : AKEY_EVENT_ACTION_UP;
 
-    if (actions & ACTION_DOWN) {
-        msg.back_or_screen_on.action = AKEY_EVENT_ACTION_DOWN;
-        if (!controller_push_msg(controller, &msg)) {
-            LOGW("Could not request 'press back or turn screen on'");
-            return;
-        }
-    }
-
-    if (actions & ACTION_UP) {
-        msg.back_or_screen_on.action = AKEY_EVENT_ACTION_UP;
-        if (!controller_push_msg(controller, &msg)) {
-            LOGW("Could not request 'press back or turn screen on'");
-        }
+    if (!sc_controller_push_msg(controller, &msg)) {
+        LOGW("Could not request 'press back or turn screen on'");
     }
 }
 
 static void
-expand_notification_panel(struct controller *controller) {
-    struct control_msg msg;
+expand_notification_panel(struct sc_controller *controller) {
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_EXPAND_NOTIFICATION_PANEL;
 
-    if (!controller_push_msg(controller, &msg)) {
+    if (!sc_controller_push_msg(controller, &msg)) {
         LOGW("Could not request 'expand notification panel'");
     }
 }
 
 static void
-expand_settings_panel(struct controller *controller) {
-    struct control_msg msg;
+expand_settings_panel(struct sc_controller *controller) {
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_EXPAND_SETTINGS_PANEL;
 
-    if (!controller_push_msg(controller, &msg)) {
+    if (!sc_controller_push_msg(controller, &msg)) {
         LOGW("Could not request 'expand settings panel'");
     }
 }
 
 static void
-collapse_panels(struct controller *controller) {
-    struct control_msg msg;
+collapse_panels(struct sc_controller *controller) {
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_COLLAPSE_PANELS;
 
-    if (!controller_push_msg(controller, &msg)) {
+    if (!sc_controller_push_msg(controller, &msg)) {
         LOGW("Could not request 'collapse notification panel'");
     }
 }
 
 static bool
-get_device_clipboard(struct controller *controller,
+get_device_clipboard(struct sc_controller *controller,
                      enum get_clipboard_copy_key copy_key) {
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_GET_CLIPBOARD;
     msg.get_clipboard.copy_key = copy_key;
 
-    if (!controller_push_msg(controller, &msg)) {
+    if (!sc_controller_push_msg(controller, &msg)) {
         LOGW("Could not request 'get device clipboard'");
         return false;
     }
@@ -217,7 +271,7 @@ get_device_clipboard(struct controller *controller,
 }
 
 static bool
-set_device_clipboard(struct controller *controller, bool paste,
+set_device_clipboard(struct sc_controller *controller, bool paste,
                      uint64_t sequence) {
     char *text = SDL_GetClipboardText();
     if (!text) {
@@ -232,13 +286,13 @@ set_device_clipboard(struct controller *controller, bool paste,
         return false;
     }
 
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_SET_CLIPBOARD;
     msg.set_clipboard.sequence = sequence;
     msg.set_clipboard.text = text_dup;
     msg.set_clipboard.paste = paste;
 
-    if (!controller_push_msg(controller, &msg)) {
+    if (!sc_controller_push_msg(controller, &msg)) {
         free(text_dup);
         LOGW("Could not request 'set device clipboard'");
         return false;
@@ -248,13 +302,13 @@ set_device_clipboard(struct controller *controller, bool paste,
 }
 
 static void
-set_screen_power_mode(struct controller *controller,
+set_screen_power_mode(struct sc_controller *controller,
                       enum screen_power_mode mode) {
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE;
     msg.set_screen_power_mode.mode = mode;
 
-    if (!controller_push_msg(controller, &msg)) {
+    if (!sc_controller_push_msg(controller, &msg)) {
         LOGW("Could not request 'set screen power mode'");
     }
 }
@@ -276,7 +330,7 @@ switch_fps_counter_state(struct fps_counter *fps_counter) {
 }
 
 static void
-clipboard_paste(struct controller *controller) {
+clipboard_paste(struct sc_controller *controller) {
     char *text = SDL_GetClipboardText();
     if (!text) {
         LOGW("Could not get clipboard text: %s", SDL_GetError());
@@ -295,55 +349,64 @@ clipboard_paste(struct controller *controller) {
         return;
     }
 
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_INJECT_TEXT;
     msg.inject_text.text = text_dup;
-    if (!controller_push_msg(controller, &msg)) {
+    if (!sc_controller_push_msg(controller, &msg)) {
         free(text_dup);
         LOGW("Could not request 'paste clipboard'");
     }
 }
 
 static void
-rotate_device(struct controller *controller) {
-    struct control_msg msg;
+rotate_device(struct sc_controller *controller) {
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_ROTATE_DEVICE;
 
-    if (!controller_push_msg(controller, &msg)) {
+    if (!sc_controller_push_msg(controller, &msg)) {
         LOGW("Could not request device rotation");
     }
 }
 
 static void
-rotate_client_left(struct screen *screen) {
+rotate_client_left(struct sc_screen *screen) {
     unsigned new_rotation = (screen->rotation + 1) % 4;
-    screen_set_rotation(screen, new_rotation);
+    sc_screen_set_rotation(screen, new_rotation);
 }
 
 static void
-rotate_client_right(struct screen *screen) {
+rotate_client_right(struct sc_screen *screen) {
     unsigned new_rotation = (screen->rotation + 3) % 4;
-    screen_set_rotation(screen, new_rotation);
+    sc_screen_set_rotation(screen, new_rotation);
 }
 
 static void
-input_manager_process_text_input(struct input_manager *im,
-                                 const SDL_TextInputEvent *event) {
+sc_input_manager_process_text_input(struct sc_input_manager *im,
+                                    const SDL_TextInputEvent *event) {
+    if (!im->kp->ops->process_text) {
+        // The key processor does not support text input
+        return;
+    }
+
     if (is_shortcut_mod(im, SDL_GetModState())) {
         // A shortcut must never generate text events
         return;
     }
 
-    im->kp->ops->process_text(im->kp, event);
+    struct sc_text_event evt = {
+        .text = event->text,
+    };
+
+    im->kp->ops->process_text(im->kp, &evt);
 }
 
 static bool
-simulate_virtual_finger(struct input_manager *im,
+simulate_virtual_finger(struct sc_input_manager *im,
                         enum android_motionevent_action action,
                         struct sc_point point) {
     bool up = action == AMOTION_EVENT_ACTION_UP;
 
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
     msg.inject_touch_event.action = action;
     msg.inject_touch_event.position.screen_size = im->screen->frame_size;
@@ -352,7 +415,7 @@ simulate_virtual_finger(struct input_manager *im,
     msg.inject_touch_event.pressure = up ? 0.0f : 1.0f;
     msg.inject_touch_event.buttons = 0;
 
-    if (!controller_push_msg(im->controller, &msg)) {
+    if (!sc_controller_push_msg(im->controller, &msg)) {
         LOGW("Could not request 'inject virtual finger event'");
         return false;
     }
@@ -368,12 +431,10 @@ inverse_point(struct sc_point point, struct sc_size size) {
 }
 
 static void
-input_manager_process_key(struct input_manager *im,
-                          const SDL_KeyboardEvent *event) {
-    // control: indicates the state of the command-line option --no-control
-    bool control = im->control;
-
-    struct controller *controller = im->controller;
+sc_input_manager_process_key(struct sc_input_manager *im,
+                             const SDL_KeyboardEvent *event) {
+    // controller is NULL if --no-control is requested
+    struct sc_controller *controller = im->controller;
 
     SDL_Keycode keycode = event->keysym.sym;
     uint16_t mod = event->keysym.mod;
@@ -396,36 +457,36 @@ input_manager_process_key(struct input_manager *im,
 
     // The shortcut modifier is pressed
     if (smod) {
-        int action = down ? ACTION_DOWN : ACTION_UP;
+        enum sc_action action = down ? SC_ACTION_DOWN : SC_ACTION_UP;
         switch (keycode) {
             case SDLK_h:
-                if (control && !shift && !repeat) {
+                if (controller && !shift && !repeat) {
                     action_home(controller, action);
                 }
                 return;
             case SDLK_b: // fall-through
             case SDLK_BACKSPACE:
-                if (control && !shift && !repeat) {
+                if (controller && !shift && !repeat) {
                     action_back(controller, action);
                 }
                 return;
             case SDLK_s:
-                if (control && !shift && !repeat) {
+                if (controller && !shift && !repeat) {
                     action_app_switch(controller, action);
                 }
                 return;
             case SDLK_m:
-                if (control && !shift && !repeat) {
+                if (controller && !shift && !repeat) {
                     action_menu(controller, action);
                 }
                 return;
             case SDLK_p:
-                if (control && !shift && !repeat) {
+                if (controller && !shift && !repeat) {
                     action_power(controller, action);
                 }
                 return;
             case SDLK_o:
-                if (control && !repeat && down) {
+                if (controller && !repeat && down) {
                     enum screen_power_mode mode = shift
                                                 ? SCREEN_POWER_MODE_NORMAL
                                                 : SCREEN_POWER_MODE_OFF;
@@ -433,13 +494,13 @@ input_manager_process_key(struct input_manager *im,
                 }
                 return;
             case SDLK_DOWN:
-                if (control && !shift) {
+                if (controller && !shift) {
                     // forward repeated events
                     action_volume_down(controller, action);
                 }
                 return;
             case SDLK_UP:
-                if (control && !shift) {
+                if (controller && !shift) {
                     // forward repeated events
                     action_volume_up(controller, action);
                 }
@@ -455,19 +516,19 @@ input_manager_process_key(struct input_manager *im,
                 }
                 return;
             case SDLK_c:
-                if (control && !shift && !repeat && down) {
+                if (controller && !shift && !repeat && down) {
                     get_device_clipboard(controller,
                                          GET_CLIPBOARD_COPY_KEY_COPY);
                 }
                 return;
             case SDLK_x:
-                if (control && !shift && !repeat && down) {
+                if (controller && !shift && !repeat && down) {
                     get_device_clipboard(controller,
                                          GET_CLIPBOARD_COPY_KEY_CUT);
                 }
                 return;
             case SDLK_v:
-                if (control && !repeat && down) {
+                if (controller && !repeat && down) {
                     if (shift || im->legacy_paste) {
                         // inject the text as input events
                         clipboard_paste(controller);
@@ -481,17 +542,17 @@ input_manager_process_key(struct input_manager *im,
                 return;
             case SDLK_f:
                 if (!shift && !repeat && down) {
-                    screen_switch_fullscreen(im->screen);
+                    sc_screen_switch_fullscreen(im->screen);
                 }
                 return;
             case SDLK_w:
                 if (!shift && !repeat && down) {
-                    screen_resize_to_fit(im->screen);
+                    sc_screen_resize_to_fit(im->screen);
                 }
                 return;
             case SDLK_g:
                 if (!shift && !repeat && down) {
-                    screen_resize_to_pixel_perfect(im->screen);
+                    sc_screen_resize_to_pixel_perfect(im->screen);
                 }
                 return;
             case SDLK_i:
@@ -500,7 +561,7 @@ input_manager_process_key(struct input_manager *im,
                 }
                 return;
             case SDLK_n:
-                if (control && !repeat && down) {
+                if (controller && !repeat && down) {
                     if (shift) {
                         collapse_panels(controller);
                     } else if (im->key_repeat == 0) {
@@ -511,7 +572,7 @@ input_manager_process_key(struct input_manager *im,
                 }
                 return;
             case SDLK_r:
-                if (control && !shift && !repeat && down) {
+                if (controller && !shift && !repeat && down) {
                     rotate_device(controller);
                 }
                 return;
@@ -520,7 +581,7 @@ input_manager_process_key(struct input_manager *im,
         return;
     }
 
-    if (!control) {
+    if (!controller) {
         return;
     }
 
@@ -553,46 +614,91 @@ input_manager_process_key(struct input_manager *im,
         }
     }
 
-    im->kp->ops->process_key(im->kp, event, ack_to_wait);
+    struct sc_key_event evt = {
+        .action = sc_action_from_sdl_keyboard_type(event->type),
+        .keycode = sc_keycode_from_sdl(event->keysym.sym),
+        .scancode = sc_scancode_from_sdl(event->keysym.scancode),
+        .repeat = event->repeat,
+        .mods_state = sc_mods_state_from_sdl(event->keysym.mod),
+    };
+
+    assert(im->kp->ops->process_key);
+    im->kp->ops->process_key(im->kp, &evt, ack_to_wait);
 }
 
 static void
-input_manager_process_mouse_motion(struct input_manager *im,
-                                   const SDL_MouseMotionEvent *event) {
-    uint32_t mask = SDL_BUTTON_LMASK;
-    if (im->forward_all_clicks) {
-        mask |= SDL_BUTTON_MMASK | SDL_BUTTON_RMASK;
-    }
-    if (!(event->state & mask)) {
-        // do not send motion events when no click is pressed
-        return;
-    }
+sc_input_manager_process_mouse_motion(struct sc_input_manager *im,
+                                      const SDL_MouseMotionEvent *event) {
+
     if (event->which == SDL_TOUCH_MOUSEID) {
         // simulated from touch events, so it's a duplicate
         return;
     }
 
-    im->mp->ops->process_mouse_motion(im->mp, event);
+    struct sc_mouse_motion_event evt = {
+        .position = {
+            .screen_size = im->screen->frame_size,
+            .point = sc_screen_convert_window_to_frame_coords(im->screen,
+                                                              event->x,
+                                                              event->y),
+        },
+        .xrel = event->xrel,
+        .yrel = event->yrel,
+        .buttons_state =
+            sc_mouse_buttons_state_from_sdl(event->state,
+                                            im->forward_all_clicks),
+    };
+
+    assert(im->mp->ops->process_mouse_motion);
+    im->mp->ops->process_mouse_motion(im->mp, &evt);
+
+    // vfinger must never be used in relative mode
+    assert(!im->mp->relative_mode || !im->vfinger_down);
 
     if (im->vfinger_down) {
+        assert(!im->mp->relative_mode); // assert one more time
         struct sc_point mouse =
-            screen_convert_window_to_frame_coords(im->screen, event->x,
-                                                  event->y);
+           sc_screen_convert_window_to_frame_coords(im->screen, event->x,
+                                                    event->y);
         struct sc_point vfinger = inverse_point(mouse, im->screen->frame_size);
         simulate_virtual_finger(im, AMOTION_EVENT_ACTION_MOVE, vfinger);
     }
 }
 
 static void
-input_manager_process_touch(struct input_manager *im,
-                            const SDL_TouchFingerEvent *event) {
-    im->mp->ops->process_touch(im->mp, event);
+sc_input_manager_process_touch(struct sc_input_manager *im,
+                               const SDL_TouchFingerEvent *event) {
+    if (!im->mp->ops->process_touch) {
+        // The mouse processor does not support touch events
+        return;
+    }
+
+    int dw;
+    int dh;
+    SDL_GL_GetDrawableSize(im->screen->window, &dw, &dh);
+
+    // SDL touch event coordinates are normalized in the range [0; 1]
+    int32_t x = event->x * dw;
+    int32_t y = event->y * dh;
+
+    struct sc_touch_event evt = {
+        .position = {
+            .screen_size = im->screen->frame_size,
+            .point =
+                sc_screen_convert_drawable_to_frame_coords(im->screen, x, y),
+        },
+        .action = sc_touch_action_from_sdl(event->type),
+        .pointer_id = event->fingerId,
+        .pressure = event->pressure,
+    };
+
+    im->mp->ops->process_touch(im->mp, &evt);
 }
 
 static void
-input_manager_process_mouse_button(struct input_manager *im,
-                                   const SDL_MouseButtonEvent *event) {
-    bool control = im->control;
+sc_input_manager_process_mouse_button(struct sc_input_manager *im,
+                                      const SDL_MouseButtonEvent *event) {
+    struct sc_controller *controller = im->controller;
 
     if (event->which == SDL_TOUCH_MOUSEID) {
         // simulated from touch events, so it's a duplicate
@@ -601,40 +707,42 @@ input_manager_process_mouse_button(struct input_manager *im,
 
     bool down = event->type == SDL_MOUSEBUTTONDOWN;
     if (!im->forward_all_clicks) {
-        int action = down ? ACTION_DOWN : ACTION_UP;
+        if (controller) {
+            enum sc_action action = down ? SC_ACTION_DOWN : SC_ACTION_UP;
 
-        if (control && event->button == SDL_BUTTON_X1) {
-            action_app_switch(im->controller, action);
-            return;
-        }
-        if (control && event->button == SDL_BUTTON_X2 && down) {
-            if (event->clicks < 2) {
-                expand_notification_panel(im->controller);
-            } else {
-                expand_settings_panel(im->controller);
+            if (event->button == SDL_BUTTON_X1) {
+                action_app_switch(controller, action);
+                return;
+            }
+            if (event->button == SDL_BUTTON_X2 && down) {
+                if (event->clicks < 2) {
+                    expand_notification_panel(controller);
+                } else {
+                    expand_settings_panel(controller);
+                }
+                return;
+            }
+            if (event->button == SDL_BUTTON_RIGHT) {
+                press_back_or_turn_screen_on(controller, action);
+                return;
+            }
+            if (event->button == SDL_BUTTON_MIDDLE) {
+                action_home(controller, action);
+                return;
             }
-            return;
-        }
-        if (control && event->button == SDL_BUTTON_RIGHT) {
-            press_back_or_turn_screen_on(im->controller, action);
-            return;
-        }
-        if (control && event->button == SDL_BUTTON_MIDDLE) {
-            action_home(im->controller, action);
-            return;
         }
 
         // double-click on black borders resize to fit the device screen
         if (event->button == SDL_BUTTON_LEFT && event->clicks == 2) {
             int32_t x = event->x;
             int32_t y = event->y;
-            screen_hidpi_scale_coords(im->screen, &x, &y);
+            sc_screen_hidpi_scale_coords(im->screen, &x, &y);
             SDL_Rect *r = &im->screen->rect;
             bool outside = x < r->x || x >= r->x + r->w
                         || y < r->y || y >= r->y + r->h;
             if (outside) {
                 if (down) {
-                    screen_resize_to_fit(im->screen);
+                    sc_screen_resize_to_fit(im->screen);
                 }
                 return;
             }
@@ -642,11 +750,34 @@ input_manager_process_mouse_button(struct input_manager *im,
         // otherwise, send the click event to the device
     }
 
-    if (!control) {
+    if (!controller) {
         return;
     }
 
-    im->mp->ops->process_mouse_button(im->mp, event);
+    uint32_t sdl_buttons_state = SDL_GetMouseState(NULL, NULL);
+
+    struct sc_mouse_click_event evt = {
+        .position = {
+            .screen_size = im->screen->frame_size,
+            .point = sc_screen_convert_window_to_frame_coords(im->screen,
+                                                              event->x,
+                                                              event->y),
+        },
+        .action = sc_action_from_sdl_mousebutton_type(event->type),
+        .button = sc_mouse_button_from_sdl(event->button),
+        .buttons_state =
+            sc_mouse_buttons_state_from_sdl(sdl_buttons_state,
+                                            im->forward_all_clicks),
+    };
+
+    assert(im->mp->ops->process_mouse_click);
+    im->mp->ops->process_mouse_click(im->mp, &evt);
+
+    if (im->mp->relative_mode) {
+        assert(!im->vfinger_down); // vfinger must not be used in relative mode
+        // No pinch-to-zoom simulation
+        return;
+    }
 
     // Pinch-to-zoom simulation.
     //
@@ -658,11 +789,12 @@ input_manager_process_mouse_button(struct input_manager *im,
     // In other words, the center of the rotation/scaling is the center of the
     // screen.
 #define CTRL_PRESSED (SDL_GetModState() & (KMOD_LCTRL | KMOD_RCTRL))
-    if ((down && !im->vfinger_down && CTRL_PRESSED)
-            || (!down && im->vfinger_down)) {
+    if (event->button == SDL_BUTTON_LEFT &&
+            ((down && !im->vfinger_down && CTRL_PRESSED) ||
+             (!down && im->vfinger_down))) {
         struct sc_point mouse =
-            screen_convert_window_to_frame_coords(im->screen, event->x,
-                                                              event->y);
+            sc_screen_convert_window_to_frame_coords(im->screen, event->x,
+                                                                 event->y);
         struct sc_point vfinger = inverse_point(mouse, im->screen->frame_size);
         enum android_motionevent_action action = down
                                                ? AMOTION_EVENT_ACTION_DOWN
@@ -675,50 +807,108 @@ input_manager_process_mouse_button(struct input_manager *im,
 }
 
 static void
-input_manager_process_mouse_wheel(struct input_manager *im,
-                                  const SDL_MouseWheelEvent *event) {
-    im->mp->ops->process_mouse_wheel(im->mp, event);
+sc_input_manager_process_mouse_wheel(struct sc_input_manager *im,
+                                     const SDL_MouseWheelEvent *event) {
+    if (!im->mp->ops->process_mouse_scroll) {
+        // The mouse processor does not support scroll events
+        return;
+    }
+
+    // mouse_x and mouse_y are expressed in pixels relative to the window
+    int mouse_x;
+    int mouse_y;
+    uint32_t buttons = SDL_GetMouseState(&mouse_x, &mouse_y);
+
+    struct sc_mouse_scroll_event evt = {
+        .position = {
+            .screen_size = im->screen->frame_size,
+            .point = sc_screen_convert_window_to_frame_coords(im->screen,
+                                                              mouse_x, mouse_y),
+        },
+        .hscroll = event->x,
+        .vscroll = event->y,
+        .buttons_state =
+            sc_mouse_buttons_state_from_sdl(buttons, im->forward_all_clicks),
+    };
+
+    im->mp->ops->process_mouse_scroll(im->mp, &evt);
 }
 
-bool
-input_manager_handle_event(struct input_manager *im, SDL_Event *event) {
+static bool
+is_apk(const char *file) {
+    const char *ext = strrchr(file, '.');
+    return ext && !strcmp(ext, ".apk");
+}
+
+static void
+sc_input_manager_process_file(struct sc_input_manager *im,
+                              const SDL_DropEvent *event) {
+    char *file = strdup(event->file);
+    SDL_free(event->file);
+    if (!file) {
+        LOG_OOM();
+        return;
+    }
+
+    enum sc_file_pusher_action action;
+    if (is_apk(file)) {
+        action = SC_FILE_PUSHER_ACTION_INSTALL_APK;
+    } else {
+        action = SC_FILE_PUSHER_ACTION_PUSH_FILE;
+    }
+    bool ok = sc_file_pusher_request(im->fp, action, file);
+    if (!ok) {
+        free(file);
+    }
+}
+
+void
+sc_input_manager_handle_event(struct sc_input_manager *im, SDL_Event *event) {
+    bool control = im->controller;
     switch (event->type) {
         case SDL_TEXTINPUT:
-            if (!im->control) {
-                return true;
+            if (!control) {
+                break;
             }
-            input_manager_process_text_input(im, &event->text);
-            return true;
+            sc_input_manager_process_text_input(im, &event->text);
+            break;
         case SDL_KEYDOWN:
         case SDL_KEYUP:
             // some key events do not interact with the device, so process the
             // event even if control is disabled
-            input_manager_process_key(im, &event->key);
-            return true;
+            sc_input_manager_process_key(im, &event->key);
+            break;
         case SDL_MOUSEMOTION:
-            if (!im->control) {
+            if (!control) {
                 break;
             }
-            input_manager_process_mouse_motion(im, &event->motion);
-            return true;
+            sc_input_manager_process_mouse_motion(im, &event->motion);
+            break;
         case SDL_MOUSEWHEEL:
-            if (!im->control) {
+            if (!control) {
                 break;
             }
-            input_manager_process_mouse_wheel(im, &event->wheel);
-            return true;
+            sc_input_manager_process_mouse_wheel(im, &event->wheel);
+            break;
         case SDL_MOUSEBUTTONDOWN:
         case SDL_MOUSEBUTTONUP:
             // some mouse events do not interact with the device, so process
             // the event even if control is disabled
-            input_manager_process_mouse_button(im, &event->button);
-            return true;
+            sc_input_manager_process_mouse_button(im, &event->button);
+            break;
         case SDL_FINGERMOTION:
         case SDL_FINGERDOWN:
         case SDL_FINGERUP:
-            input_manager_process_touch(im, &event->tfinger);
-            return true;
+            if (!control) {
+                break;
+            }
+            sc_input_manager_process_touch(im, &event->tfinger);
+            break;
+        case SDL_DROPFILE: {
+            if (!control) {
+                break;
+            }
+            sc_input_manager_process_file(im, &event->drop);
+        }
     }
-
-    return false;
 }

app/src/input_manager.h

@@ -8,20 +8,20 @@
 #include <SDL2/SDL.h>
 
 #include "controller.h"
+#include "file_pusher.h"
 #include "fps_counter.h"
 #include "options.h"
-#include "screen.h"
 #include "trait/key_processor.h"
 #include "trait/mouse_processor.h"
 
-struct input_manager {
-    struct controller *controller;
-    struct screen *screen;
+struct sc_input_manager {
+    struct sc_controller *controller;
+    struct sc_file_pusher *fp;
+    struct sc_screen *screen;
 
     struct sc_key_processor *kp;
     struct sc_mouse_processor *mp;
 
-    bool control;
     bool forward_all_clicks;
     bool legacy_paste;
     bool clipboard_autosync;
@@ -43,13 +43,24 @@ struct input_manager {
     uint64_t next_sequence; // used for request acknowledgements
 };
 
-void
-input_manager_init(struct input_manager *im, struct controller *controller,
-                   struct screen *screen, struct sc_key_processor *kp,
-                   struct sc_mouse_processor *mp,
-                   const struct scrcpy_options *options);
+struct sc_input_manager_params {
+    struct sc_controller *controller;
+    struct sc_file_pusher *fp;
+    struct sc_screen *screen;
+    struct sc_key_processor *kp;
+    struct sc_mouse_processor *mp;
 
-bool
-input_manager_handle_event(struct input_manager *im, SDL_Event *event);
+    bool forward_all_clicks;
+    bool legacy_paste;
+    bool clipboard_autosync;
+    const struct sc_shortcut_mods *shortcut_mods;
+};
+
+void
+sc_input_manager_init(struct sc_input_manager *im,
+                      const struct sc_input_manager_params *params);
+
+void
+sc_input_manager_handle_event(struct sc_input_manager *im, SDL_Event *event);
 
 #endif

app/src/keyboard_inject.c

@@ -1,153 +1,146 @@
 #include "keyboard_inject.h"
 
 #include <assert.h>
-#include <SDL2/SDL_events.h>
 
 #include "android/input.h"
 #include "control_msg.h"
 #include "controller.h"
+#include "input_events.h"
 #include "util/intmap.h"
 #include "util/log.h"
 
 /** Downcast key processor to sc_keyboard_inject */
 #define DOWNCAST(KP) container_of(KP, struct sc_keyboard_inject, key_processor)
 
-static bool
-convert_keycode_action(SDL_EventType from, enum android_keyevent_action *to) {
-    static const struct sc_intmap_entry actions[] = {
-        {SDL_KEYDOWN, AKEY_EVENT_ACTION_DOWN},
-        {SDL_KEYUP,   AKEY_EVENT_ACTION_UP},
-    };
-
-    const struct sc_intmap_entry *entry = SC_INTMAP_FIND_ENTRY(actions, from);
-    if (entry) {
-        *to = entry->value;
-        return true;
+static enum android_keyevent_action
+convert_keycode_action(enum sc_action action) {
+    if (action == SC_ACTION_DOWN) {
+        return AKEY_EVENT_ACTION_DOWN;
     }
-
-    return false;
+    assert(action == SC_ACTION_UP);
+    return AKEY_EVENT_ACTION_UP;
 }
 
 static bool
-convert_keycode(SDL_Keycode from, enum android_keycode *to, uint16_t mod,
+convert_keycode(enum sc_keycode from, enum android_keycode *to, uint16_t mod,
                 enum sc_key_inject_mode key_inject_mode) {
     // Navigation keys and ENTER.
     // Used in all modes.
     static const struct sc_intmap_entry special_keys[] = {
-        {SDLK_RETURN,    AKEYCODE_ENTER},
-        {SDLK_KP_ENTER,  AKEYCODE_NUMPAD_ENTER},
-        {SDLK_ESCAPE,    AKEYCODE_ESCAPE},
-        {SDLK_BACKSPACE, AKEYCODE_DEL},
-        {SDLK_TAB,       AKEYCODE_TAB},
-        {SDLK_PAGEUP,    AKEYCODE_PAGE_UP},
-        {SDLK_DELETE,    AKEYCODE_FORWARD_DEL},
-        {SDLK_HOME,      AKEYCODE_MOVE_HOME},
-        {SDLK_END,       AKEYCODE_MOVE_END},
-        {SDLK_PAGEDOWN,  AKEYCODE_PAGE_DOWN},
-        {SDLK_RIGHT,     AKEYCODE_DPAD_RIGHT},
-        {SDLK_LEFT,      AKEYCODE_DPAD_LEFT},
-        {SDLK_DOWN,      AKEYCODE_DPAD_DOWN},
-        {SDLK_UP,        AKEYCODE_DPAD_UP},
-        {SDLK_LCTRL,     AKEYCODE_CTRL_LEFT},
-        {SDLK_RCTRL,     AKEYCODE_CTRL_RIGHT},
-        {SDLK_LSHIFT,    AKEYCODE_SHIFT_LEFT},
-        {SDLK_RSHIFT,    AKEYCODE_SHIFT_RIGHT},
+        {SC_KEYCODE_RETURN,    AKEYCODE_ENTER},
+        {SC_KEYCODE_KP_ENTER,  AKEYCODE_NUMPAD_ENTER},
+        {SC_KEYCODE_ESCAPE,    AKEYCODE_ESCAPE},
+        {SC_KEYCODE_BACKSPACE, AKEYCODE_DEL},
+        {SC_KEYCODE_TAB,       AKEYCODE_TAB},
+        {SC_KEYCODE_PAGEUP,    AKEYCODE_PAGE_UP},
+        {SC_KEYCODE_DELETE,    AKEYCODE_FORWARD_DEL},
+        {SC_KEYCODE_HOME,      AKEYCODE_MOVE_HOME},
+        {SC_KEYCODE_END,       AKEYCODE_MOVE_END},
+        {SC_KEYCODE_PAGEDOWN,  AKEYCODE_PAGE_DOWN},
+        {SC_KEYCODE_RIGHT,     AKEYCODE_DPAD_RIGHT},
+        {SC_KEYCODE_LEFT,      AKEYCODE_DPAD_LEFT},
+        {SC_KEYCODE_DOWN,      AKEYCODE_DPAD_DOWN},
+        {SC_KEYCODE_UP,        AKEYCODE_DPAD_UP},
+        {SC_KEYCODE_LCTRL,     AKEYCODE_CTRL_LEFT},
+        {SC_KEYCODE_RCTRL,     AKEYCODE_CTRL_RIGHT},
+        {SC_KEYCODE_LSHIFT,    AKEYCODE_SHIFT_LEFT},
+        {SC_KEYCODE_RSHIFT,    AKEYCODE_SHIFT_RIGHT},
     };
 
     // Numpad navigation keys.
     // Used in all modes, when NumLock and Shift are disabled.
     static const struct sc_intmap_entry kp_nav_keys[] = {
-        {SDLK_KP_0,      AKEYCODE_INSERT},
-        {SDLK_KP_1,      AKEYCODE_MOVE_END},
-        {SDLK_KP_2,      AKEYCODE_DPAD_DOWN},
-        {SDLK_KP_3,      AKEYCODE_PAGE_DOWN},
-        {SDLK_KP_4,      AKEYCODE_DPAD_LEFT},
-        {SDLK_KP_6,      AKEYCODE_DPAD_RIGHT},
-        {SDLK_KP_7,      AKEYCODE_MOVE_HOME},
-        {SDLK_KP_8,      AKEYCODE_DPAD_UP},
-        {SDLK_KP_9,      AKEYCODE_PAGE_UP},
-        {SDLK_KP_PERIOD, AKEYCODE_FORWARD_DEL},
+        {SC_KEYCODE_KP_0,      AKEYCODE_INSERT},
+        {SC_KEYCODE_KP_1,      AKEYCODE_MOVE_END},
+        {SC_KEYCODE_KP_2,      AKEYCODE_DPAD_DOWN},
+        {SC_KEYCODE_KP_3,      AKEYCODE_PAGE_DOWN},
+        {SC_KEYCODE_KP_4,      AKEYCODE_DPAD_LEFT},
+        {SC_KEYCODE_KP_6,      AKEYCODE_DPAD_RIGHT},
+        {SC_KEYCODE_KP_7,      AKEYCODE_MOVE_HOME},
+        {SC_KEYCODE_KP_8,      AKEYCODE_DPAD_UP},
+        {SC_KEYCODE_KP_9,      AKEYCODE_PAGE_UP},
+        {SC_KEYCODE_KP_PERIOD, AKEYCODE_FORWARD_DEL},
     };
 
     // Letters and space.
     // Used in non-text mode.
     static const struct sc_intmap_entry alphaspace_keys[] = {
-        {SDLK_a,         AKEYCODE_A},
-        {SDLK_b,         AKEYCODE_B},
-        {SDLK_c,         AKEYCODE_C},
-        {SDLK_d,         AKEYCODE_D},
-        {SDLK_e,         AKEYCODE_E},
-        {SDLK_f,         AKEYCODE_F},
-        {SDLK_g,         AKEYCODE_G},
-        {SDLK_h,         AKEYCODE_H},
-        {SDLK_i,         AKEYCODE_I},
-        {SDLK_j,         AKEYCODE_J},
-        {SDLK_k,         AKEYCODE_K},
-        {SDLK_l,         AKEYCODE_L},
-        {SDLK_m,         AKEYCODE_M},
-        {SDLK_n,         AKEYCODE_N},
-        {SDLK_o,         AKEYCODE_O},
-        {SDLK_p,         AKEYCODE_P},
-        {SDLK_q,         AKEYCODE_Q},
-        {SDLK_r,         AKEYCODE_R},
-        {SDLK_s,         AKEYCODE_S},
-        {SDLK_t,         AKEYCODE_T},
-        {SDLK_u,         AKEYCODE_U},
-        {SDLK_v,         AKEYCODE_V},
-        {SDLK_w,         AKEYCODE_W},
-        {SDLK_x,         AKEYCODE_X},
-        {SDLK_y,         AKEYCODE_Y},
-        {SDLK_z,         AKEYCODE_Z},
-        {SDLK_SPACE,     AKEYCODE_SPACE},
+        {SC_KEYCODE_a,         AKEYCODE_A},
+        {SC_KEYCODE_b,         AKEYCODE_B},
+        {SC_KEYCODE_c,         AKEYCODE_C},
+        {SC_KEYCODE_d,         AKEYCODE_D},
+        {SC_KEYCODE_e,         AKEYCODE_E},
+        {SC_KEYCODE_f,         AKEYCODE_F},
+        {SC_KEYCODE_g,         AKEYCODE_G},
+        {SC_KEYCODE_h,         AKEYCODE_H},
+        {SC_KEYCODE_i,         AKEYCODE_I},
+        {SC_KEYCODE_j,         AKEYCODE_J},
+        {SC_KEYCODE_k,         AKEYCODE_K},
+        {SC_KEYCODE_l,         AKEYCODE_L},
+        {SC_KEYCODE_m,         AKEYCODE_M},
+        {SC_KEYCODE_n,         AKEYCODE_N},
+        {SC_KEYCODE_o,         AKEYCODE_O},
+        {SC_KEYCODE_p,         AKEYCODE_P},
+        {SC_KEYCODE_q,         AKEYCODE_Q},
+        {SC_KEYCODE_r,         AKEYCODE_R},
+        {SC_KEYCODE_s,         AKEYCODE_S},
+        {SC_KEYCODE_t,         AKEYCODE_T},
+        {SC_KEYCODE_u,         AKEYCODE_U},
+        {SC_KEYCODE_v,         AKEYCODE_V},
+        {SC_KEYCODE_w,         AKEYCODE_W},
+        {SC_KEYCODE_x,         AKEYCODE_X},
+        {SC_KEYCODE_y,         AKEYCODE_Y},
+        {SC_KEYCODE_z,         AKEYCODE_Z},
+        {SC_KEYCODE_SPACE,     AKEYCODE_SPACE},
     };
 
     // Numbers and punctuation keys.
     // Used in raw mode only.
     static const struct sc_intmap_entry numbers_punct_keys[] = {
-        {SDLK_HASH,          AKEYCODE_POUND},
-        {SDLK_PERCENT,       AKEYCODE_PERIOD},
-        {SDLK_QUOTE,         AKEYCODE_APOSTROPHE},
-        {SDLK_ASTERISK,      AKEYCODE_STAR},
-        {SDLK_PLUS,          AKEYCODE_PLUS},
-        {SDLK_COMMA,         AKEYCODE_COMMA},
-        {SDLK_MINUS,         AKEYCODE_MINUS},
-        {SDLK_PERIOD,        AKEYCODE_PERIOD},
-        {SDLK_SLASH,         AKEYCODE_SLASH},
-        {SDLK_0,             AKEYCODE_0},
-        {SDLK_1,             AKEYCODE_1},
-        {SDLK_2,             AKEYCODE_2},
-        {SDLK_3,             AKEYCODE_3},
-        {SDLK_4,             AKEYCODE_4},
-        {SDLK_5,             AKEYCODE_5},
-        {SDLK_6,             AKEYCODE_6},
-        {SDLK_7,             AKEYCODE_7},
-        {SDLK_8,             AKEYCODE_8},
-        {SDLK_9,             AKEYCODE_9},
-        {SDLK_SEMICOLON,     AKEYCODE_SEMICOLON},
-        {SDLK_EQUALS,        AKEYCODE_EQUALS},
-        {SDLK_AT,            AKEYCODE_AT},
-        {SDLK_LEFTBRACKET,   AKEYCODE_LEFT_BRACKET},
-        {SDLK_BACKSLASH,     AKEYCODE_BACKSLASH},
-        {SDLK_RIGHTBRACKET,  AKEYCODE_RIGHT_BRACKET},
-        {SDLK_BACKQUOTE,     AKEYCODE_GRAVE},
-        {SDLK_KP_1,          AKEYCODE_NUMPAD_1},
-        {SDLK_KP_2,          AKEYCODE_NUMPAD_2},
-        {SDLK_KP_3,          AKEYCODE_NUMPAD_3},
-        {SDLK_KP_4,          AKEYCODE_NUMPAD_4},
-        {SDLK_KP_5,          AKEYCODE_NUMPAD_5},
-        {SDLK_KP_6,          AKEYCODE_NUMPAD_6},
-        {SDLK_KP_7,          AKEYCODE_NUMPAD_7},
-        {SDLK_KP_8,          AKEYCODE_NUMPAD_8},
-        {SDLK_KP_9,          AKEYCODE_NUMPAD_9},
-        {SDLK_KP_0,          AKEYCODE_NUMPAD_0},
-        {SDLK_KP_DIVIDE,     AKEYCODE_NUMPAD_DIVIDE},
-        {SDLK_KP_MULTIPLY,   AKEYCODE_NUMPAD_MULTIPLY},
-        {SDLK_KP_MINUS,      AKEYCODE_NUMPAD_SUBTRACT},
-        {SDLK_KP_PLUS,       AKEYCODE_NUMPAD_ADD},
-        {SDLK_KP_PERIOD,     AKEYCODE_NUMPAD_DOT},
-        {SDLK_KP_EQUALS,     AKEYCODE_NUMPAD_EQUALS},
-        {SDLK_KP_LEFTPAREN,  AKEYCODE_NUMPAD_LEFT_PAREN},
-        {SDLK_KP_RIGHTPAREN, AKEYCODE_NUMPAD_RIGHT_PAREN},
+        {SC_KEYCODE_HASH,          AKEYCODE_POUND},
+        {SC_KEYCODE_PERCENT,       AKEYCODE_PERIOD},
+        {SC_KEYCODE_QUOTE,         AKEYCODE_APOSTROPHE},
+        {SC_KEYCODE_ASTERISK,      AKEYCODE_STAR},
+        {SC_KEYCODE_PLUS,          AKEYCODE_PLUS},
+        {SC_KEYCODE_COMMA,         AKEYCODE_COMMA},
+        {SC_KEYCODE_MINUS,         AKEYCODE_MINUS},
+        {SC_KEYCODE_PERIOD,        AKEYCODE_PERIOD},
+        {SC_KEYCODE_SLASH,         AKEYCODE_SLASH},
+        {SC_KEYCODE_0,             AKEYCODE_0},
+        {SC_KEYCODE_1,             AKEYCODE_1},
+        {SC_KEYCODE_2,             AKEYCODE_2},
+        {SC_KEYCODE_3,             AKEYCODE_3},
+        {SC_KEYCODE_4,             AKEYCODE_4},
+        {SC_KEYCODE_5,             AKEYCODE_5},
+        {SC_KEYCODE_6,             AKEYCODE_6},
+        {SC_KEYCODE_7,             AKEYCODE_7},
+        {SC_KEYCODE_8,             AKEYCODE_8},
+        {SC_KEYCODE_9,             AKEYCODE_9},
+        {SC_KEYCODE_SEMICOLON,     AKEYCODE_SEMICOLON},
+        {SC_KEYCODE_EQUALS,        AKEYCODE_EQUALS},
+        {SC_KEYCODE_AT,            AKEYCODE_AT},
+        {SC_KEYCODE_LEFTBRACKET,   AKEYCODE_LEFT_BRACKET},
+        {SC_KEYCODE_BACKSLASH,     AKEYCODE_BACKSLASH},
+        {SC_KEYCODE_RIGHTBRACKET,  AKEYCODE_RIGHT_BRACKET},
+        {SC_KEYCODE_BACKQUOTE,     AKEYCODE_GRAVE},
+        {SC_KEYCODE_KP_1,          AKEYCODE_NUMPAD_1},
+        {SC_KEYCODE_KP_2,          AKEYCODE_NUMPAD_2},
+        {SC_KEYCODE_KP_3,          AKEYCODE_NUMPAD_3},
+        {SC_KEYCODE_KP_4,          AKEYCODE_NUMPAD_4},
+        {SC_KEYCODE_KP_5,          AKEYCODE_NUMPAD_5},
+        {SC_KEYCODE_KP_6,          AKEYCODE_NUMPAD_6},
+        {SC_KEYCODE_KP_7,          AKEYCODE_NUMPAD_7},
+        {SC_KEYCODE_KP_8,          AKEYCODE_NUMPAD_8},
+        {SC_KEYCODE_KP_9,          AKEYCODE_NUMPAD_9},
+        {SC_KEYCODE_KP_0,          AKEYCODE_NUMPAD_0},
+        {SC_KEYCODE_KP_DIVIDE,     AKEYCODE_NUMPAD_DIVIDE},
+        {SC_KEYCODE_KP_MULTIPLY,   AKEYCODE_NUMPAD_MULTIPLY},
+        {SC_KEYCODE_KP_MINUS,      AKEYCODE_NUMPAD_SUBTRACT},
+        {SC_KEYCODE_KP_PLUS,       AKEYCODE_NUMPAD_ADD},
+        {SC_KEYCODE_KP_PERIOD,     AKEYCODE_NUMPAD_DOT},
+        {SC_KEYCODE_KP_EQUALS,     AKEYCODE_NUMPAD_EQUALS},
+        {SC_KEYCODE_KP_LEFTPAREN,  AKEYCODE_NUMPAD_LEFT_PAREN},
+        {SC_KEYCODE_KP_RIGHTPAREN, AKEYCODE_NUMPAD_RIGHT_PAREN},
     };
 
     const struct sc_intmap_entry *entry =
@@ -157,7 +150,7 @@ convert_keycode(SDL_Keycode from, enum android_keycode *to, uint16_t mod,
         return true;
     }
 
-    if (!(mod & (KMOD_NUM | KMOD_SHIFT))) {
+    if (!(mod & (SC_MOD_NUM | SC_MOD_LSHIFT | SC_MOD_RSHIFT))) {
         // Handle Numpad events when Num Lock is disabled
         // If SHIFT is pressed, a text event will be sent instead
         entry = SC_INTMAP_FIND_ENTRY(kp_nav_keys, from);
@@ -167,12 +160,13 @@ convert_keycode(SDL_Keycode from, enum android_keycode *to, uint16_t mod,
         }
     }
 
-    if (key_inject_mode == SC_KEY_INJECT_MODE_TEXT && !(mod & KMOD_CTRL)) {
+    if (key_inject_mode == SC_KEY_INJECT_MODE_TEXT &&
+            !(mod & (SC_MOD_LCTRL | SC_MOD_RCTRL))) {
         // do not forward alpha and space key events (unless Ctrl is pressed)
         return false;
     }
 
-    if (mod & (KMOD_LALT | KMOD_RALT | KMOD_LGUI | KMOD_RGUI)) {
+    if (mod & (SC_MOD_LALT | SC_MOD_RALT | SC_MOD_LGUI | SC_MOD_RGUI)) {
         return false;
     }
 
@@ -214,70 +208,63 @@ autocomplete_metastate(enum android_metastate metastate) {
 }
 
 static enum android_metastate
-convert_meta_state(SDL_Keymod mod) {
+convert_meta_state(uint16_t mod) {
     enum android_metastate metastate = 0;
-    if (mod & KMOD_LSHIFT) {
+    if (mod & SC_MOD_LSHIFT) {
         metastate |= AMETA_SHIFT_LEFT_ON;
     }
-    if (mod & KMOD_RSHIFT) {
+    if (mod & SC_MOD_RSHIFT) {
         metastate |= AMETA_SHIFT_RIGHT_ON;
     }
-    if (mod & KMOD_LCTRL) {
+    if (mod & SC_MOD_LCTRL) {
         metastate |= AMETA_CTRL_LEFT_ON;
     }
-    if (mod & KMOD_RCTRL) {
+    if (mod & SC_MOD_RCTRL) {
         metastate |= AMETA_CTRL_RIGHT_ON;
     }
-    if (mod & KMOD_LALT) {
+    if (mod & SC_MOD_LALT) {
         metastate |= AMETA_ALT_LEFT_ON;
     }
-    if (mod & KMOD_RALT) {
+    if (mod & SC_MOD_RALT) {
         metastate |= AMETA_ALT_RIGHT_ON;
     }
-    if (mod & KMOD_LGUI) { // Windows key
+    if (mod & SC_MOD_LGUI) { // Windows key
         metastate |= AMETA_META_LEFT_ON;
     }
-    if (mod & KMOD_RGUI) { // Windows key
+    if (mod & SC_MOD_RGUI) { // Windows key
         metastate |= AMETA_META_RIGHT_ON;
     }
-    if (mod & KMOD_NUM) {
+    if (mod & SC_MOD_NUM) {
         metastate |= AMETA_NUM_LOCK_ON;
     }
-    if (mod & KMOD_CAPS) {
+    if (mod & SC_MOD_CAPS) {
         metastate |= AMETA_CAPS_LOCK_ON;
     }
-    if (mod & KMOD_MODE) { // Alt Gr
-        // no mapping?
-    }
 
     // fill the dependent fields
     return autocomplete_metastate(metastate);
 }
 
 static bool
-convert_input_key(const SDL_KeyboardEvent *from, struct control_msg *to,
+convert_input_key(const struct sc_key_event *event, struct sc_control_msg *msg,
                   enum sc_key_inject_mode key_inject_mode, uint32_t repeat) {
-    to->type = CONTROL_MSG_TYPE_INJECT_KEYCODE;
+    msg->type = CONTROL_MSG_TYPE_INJECT_KEYCODE;
 
-    if (!convert_keycode_action(from->type, &to->inject_keycode.action)) {
+    if (!convert_keycode(event->keycode, &msg->inject_keycode.keycode,
+                         event->mods_state, key_inject_mode)) {
         return false;
     }
 
-    uint16_t mod = from->keysym.mod;
-    if (!convert_keycode(from->keysym.sym, &to->inject_keycode.keycode, mod,
-                         key_inject_mode)) {
-        return false;
-    }
-
-    to->inject_keycode.repeat = repeat;
-    to->inject_keycode.metastate = convert_meta_state(mod);
+    msg->inject_keycode.action = convert_keycode_action(event->action);
+    msg->inject_keycode.repeat = repeat;
+    msg->inject_keycode.metastate = convert_meta_state(event->mods_state);
 
     return true;
 }
 
 static void
 sc_key_processor_process_key(struct sc_key_processor *kp,
-                             const SDL_KeyboardEvent *event,
+                             const struct sc_key_event *event,
                              uint64_t ack_to_wait) {
     // The device clipboard synchronization and the key event messages are
     // serialized, there is nothing special to do to ensure that the clipboard
@@ -295,9 +282,9 @@ sc_key_processor_process_key(struct sc_key_processor *kp,
         ki->repeat = 0;
     }
 
-    struct control_msg msg;
+    struct sc_control_msg msg;
     if (convert_input_key(event, &msg, ki->key_inject_mode, ki->repeat)) {
-        if (!controller_push_msg(ki->controller, &msg)) {
+        if (!sc_controller_push_msg(ki->controller, &msg)) {
             LOGW("Could not request 'inject keycode'");
         }
     }
@@ -305,7 +292,7 @@ sc_key_processor_process_key(struct sc_key_processor *kp,
 
 static void
 sc_key_processor_process_text(struct sc_key_processor *kp,
-                              const SDL_TextInputEvent *event) {
+                              const struct sc_text_event *event) {
     struct sc_keyboard_inject *ki = DOWNCAST(kp);
 
     if (ki->key_inject_mode == SC_KEY_INJECT_MODE_RAW) {
@@ -322,14 +309,14 @@ sc_key_processor_process_text(struct sc_key_processor *kp,
         }
     }
 
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_INJECT_TEXT;
     msg.inject_text.text = strdup(event->text);
     if (!msg.inject_text.text) {
         LOGW("Could not strdup input text");
         return;
     }
-    if (!controller_push_msg(ki->controller, &msg)) {
+    if (!sc_controller_push_msg(ki->controller, &msg)) {
         free(msg.inject_text.text);
         LOGW("Could not request 'inject text'");
     }
@@ -337,11 +324,12 @@ sc_key_processor_process_text(struct sc_key_processor *kp,
 
 void
 sc_keyboard_inject_init(struct sc_keyboard_inject *ki,
-                        struct controller *controller,
-                        const struct scrcpy_options *options) {
+                        struct sc_controller *controller,
+                        enum sc_key_inject_mode key_inject_mode,
+                        bool forward_key_repeat) {
     ki->controller = controller;
-    ki->key_inject_mode = options->key_inject_mode;
-    ki->forward_key_repeat = options->forward_key_repeat;
+    ki->key_inject_mode = key_inject_mode;
+    ki->forward_key_repeat = forward_key_repeat;
 
     ki->repeat = 0;
 

app/src/keyboard_inject.h

@@ -12,7 +12,7 @@
 struct sc_keyboard_inject {
     struct sc_key_processor key_processor; // key processor trait
 
-    struct controller *controller;
+    struct sc_controller *controller;
 
     // SDL reports repeated events as a boolean, but Android expects the actual
     // number of repetitions. This variable keeps track of the count.
@@ -24,7 +24,8 @@ struct sc_keyboard_inject {
 
 void
 sc_keyboard_inject_init(struct sc_keyboard_inject *ki,
-                        struct controller *controller,
-                        const struct scrcpy_options *options);
+                        struct sc_controller *controller,
+                        enum sc_key_inject_mode key_inject_mode,
+                        bool forward_key_repeat);
 
 #endif

app/src/mouse_inject.c

@@ -1,11 +1,11 @@
 #include "mouse_inject.h"
 
 #include <assert.h>
-#include <SDL2/SDL_events.h>
 
 #include "android/input.h"
 #include "control_msg.h"
 #include "controller.h"
+#include "input_events.h"
 #include "util/intmap.h"
 #include "util/log.h"
 
@@ -15,210 +15,147 @@
 static enum android_motionevent_buttons
 convert_mouse_buttons(uint32_t state) {
     enum android_motionevent_buttons buttons = 0;
-    if (state & SDL_BUTTON_LMASK) {
+    if (state & SC_MOUSE_BUTTON_LEFT) {
         buttons |= AMOTION_EVENT_BUTTON_PRIMARY;
     }
-    if (state & SDL_BUTTON_RMASK) {
+    if (state & SC_MOUSE_BUTTON_RIGHT) {
         buttons |= AMOTION_EVENT_BUTTON_SECONDARY;
     }
-    if (state & SDL_BUTTON_MMASK) {
+    if (state & SC_MOUSE_BUTTON_MIDDLE) {
         buttons |= AMOTION_EVENT_BUTTON_TERTIARY;
     }
-    if (state & SDL_BUTTON_X1MASK) {
+    if (state & SC_MOUSE_BUTTON_X1) {
         buttons |= AMOTION_EVENT_BUTTON_BACK;
     }
-    if (state & SDL_BUTTON_X2MASK) {
+    if (state & SC_MOUSE_BUTTON_X2) {
         buttons |= AMOTION_EVENT_BUTTON_FORWARD;
     }
     return buttons;
 }
 
-static bool
-convert_mouse_action(SDL_EventType from, enum android_motionevent_action *to) {
-    static const struct sc_intmap_entry actions[] = {
-        {SDL_MOUSEBUTTONDOWN, AMOTION_EVENT_ACTION_DOWN},
-        {SDL_MOUSEBUTTONUP,   AMOTION_EVENT_ACTION_UP},
-    };
-
-    const struct sc_intmap_entry *entry = SC_INTMAP_FIND_ENTRY(actions, from);
-    if (entry) {
-        *to = entry->value;
-        return true;
+static enum android_motionevent_action
+convert_mouse_action(enum sc_action action) {
+    if (action == SC_ACTION_DOWN) {
+        return AMOTION_EVENT_ACTION_DOWN;
     }
-
-    return false;
+    assert(action == SC_ACTION_UP);
+    return AMOTION_EVENT_ACTION_UP;
 }
 
-static bool
-convert_touch_action(SDL_EventType from, enum android_motionevent_action *to) {
-    static const struct sc_intmap_entry actions[] = {
-        {SDL_FINGERMOTION, AMOTION_EVENT_ACTION_MOVE},
-        {SDL_FINGERDOWN,   AMOTION_EVENT_ACTION_DOWN},
-        {SDL_FINGERUP,     AMOTION_EVENT_ACTION_UP},
-    };
-
-    const struct sc_intmap_entry *entry = SC_INTMAP_FIND_ENTRY(actions, from);
-    if (entry) {
-        *to = entry->value;
-        return true;
+static enum android_motionevent_action
+convert_touch_action(enum sc_touch_action action) {
+    switch (action) {
+        case SC_TOUCH_ACTION_MOVE:
+            return AMOTION_EVENT_ACTION_MOVE;
+        case SC_TOUCH_ACTION_DOWN:
+            return AMOTION_EVENT_ACTION_DOWN;
+        default:
+            assert(action == SC_TOUCH_ACTION_UP);
+            return AMOTION_EVENT_ACTION_UP;
     }
-
-    return false;
-}
-
-static bool
-convert_mouse_motion(const SDL_MouseMotionEvent *from, struct screen *screen,
-                     struct control_msg *to) {
-    to->type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
-    to->inject_touch_event.action = AMOTION_EVENT_ACTION_MOVE;
-    to->inject_touch_event.pointer_id = POINTER_ID_MOUSE;
-    to->inject_touch_event.position.screen_size = screen->frame_size;
-    to->inject_touch_event.position.point =
-        screen_convert_window_to_frame_coords(screen, from->x, from->y);
-    to->inject_touch_event.pressure = 1.f;
-    to->inject_touch_event.buttons = convert_mouse_buttons(from->state);
-
-    return true;
-}
-
-static bool
-convert_touch(const SDL_TouchFingerEvent *from, struct screen *screen,
-              struct control_msg *to) {
-    to->type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
-
-    if (!convert_touch_action(from->type, &to->inject_touch_event.action)) {
-        return false;
-    }
-
-    to->inject_touch_event.pointer_id = from->fingerId;
-    to->inject_touch_event.position.screen_size = screen->frame_size;
-
-    int dw;
-    int dh;
-    SDL_GL_GetDrawableSize(screen->window, &dw, &dh);
-
-    // SDL touch event coordinates are normalized in the range [0; 1]
-    int32_t x = from->x * dw;
-    int32_t y = from->y * dh;
-    to->inject_touch_event.position.point =
-        screen_convert_drawable_to_frame_coords(screen, x, y);
-
-    to->inject_touch_event.pressure = from->pressure;
-    to->inject_touch_event.buttons = 0;
-    return true;
-}
-
-static bool
-convert_mouse_button(const SDL_MouseButtonEvent *from, struct screen *screen,
-                     struct control_msg *to) {
-    to->type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
-
-    if (!convert_mouse_action(from->type, &to->inject_touch_event.action)) {
-        return false;
-    }
-
-    to->inject_touch_event.pointer_id = POINTER_ID_MOUSE;
-    to->inject_touch_event.position.screen_size = screen->frame_size;
-    to->inject_touch_event.position.point =
-        screen_convert_window_to_frame_coords(screen, from->x, from->y);
-    to->inject_touch_event.pressure =
-        from->type == SDL_MOUSEBUTTONDOWN ? 1.f : 0.f;
-    to->inject_touch_event.buttons =
-        convert_mouse_buttons(SDL_BUTTON(from->button));
-
-    return true;
-}
-
-static bool
-convert_mouse_wheel(const SDL_MouseWheelEvent *from, struct screen *screen,
-                    struct control_msg *to) {
-
-    // mouse_x and mouse_y are expressed in pixels relative to the window
-    int mouse_x;
-    int mouse_y;
-    SDL_GetMouseState(&mouse_x, &mouse_y);
-
-    struct sc_position position = {
-        .screen_size = screen->frame_size,
-        .point = screen_convert_window_to_frame_coords(screen,
-                                                       mouse_x, mouse_y),
-    };
-
-    to->type = CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT;
-
-    to->inject_scroll_event.position = position;
-    to->inject_scroll_event.hscroll = from->x;
-    to->inject_scroll_event.vscroll = from->y;
-
-    return true;
 }
 
 static void
 sc_mouse_processor_process_mouse_motion(struct sc_mouse_processor *mp,
-                                        const SDL_MouseMotionEvent *event) {
-    struct sc_mouse_inject *mi = DOWNCAST(mp);
-
-    struct control_msg msg;
-    if (!convert_mouse_motion(event, mi->screen, &msg)) {
+                                    const struct sc_mouse_motion_event *event) {
+    if (!event->buttons_state) {
+        // Do not send motion events when no click is pressed
         return;
     }
 
-    if (!controller_push_msg(mi->controller, &msg)) {
+    struct sc_mouse_inject *mi = DOWNCAST(mp);
+
+    struct sc_control_msg msg = {
+        .type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT,
+        .inject_touch_event = {
+            .action = AMOTION_EVENT_ACTION_MOVE,
+            .pointer_id = POINTER_ID_MOUSE,
+            .position = event->position,
+            .pressure = 1.f,
+            .buttons = convert_mouse_buttons(event->buttons_state),
+        },
+    };
+
+    if (!sc_controller_push_msg(mi->controller, &msg)) {
         LOGW("Could not request 'inject mouse motion event'");
     }
 }
 
+static void
+sc_mouse_processor_process_mouse_click(struct sc_mouse_processor *mp,
+                                    const struct sc_mouse_click_event *event) {
+    struct sc_mouse_inject *mi = DOWNCAST(mp);
+
+    struct sc_control_msg msg = {
+        .type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT,
+        .inject_touch_event = {
+            .action = convert_mouse_action(event->action),
+            .pointer_id = POINTER_ID_MOUSE,
+            .position = event->position,
+            .pressure = event->action == SC_ACTION_DOWN ? 1.f : 0.f,
+            .buttons = convert_mouse_buttons(event->buttons_state),
+        },
+    };
+
+    if (!sc_controller_push_msg(mi->controller, &msg)) {
+        LOGW("Could not request 'inject mouse click event'");
+    }
+}
+
+static void
+sc_mouse_processor_process_mouse_scroll(struct sc_mouse_processor *mp,
+                                   const struct sc_mouse_scroll_event *event) {
+    struct sc_mouse_inject *mi = DOWNCAST(mp);
+
+    struct sc_control_msg msg = {
+        .type = CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT,
+        .inject_scroll_event = {
+            .position = event->position,
+            .hscroll = event->hscroll,
+            .vscroll = event->vscroll,
+            .buttons = convert_mouse_buttons(event->buttons_state),
+        },
+    };
+
+    if (!sc_controller_push_msg(mi->controller, &msg)) {
+        LOGW("Could not request 'inject mouse scroll event'");
+    }
+}
+
 static void
 sc_mouse_processor_process_touch(struct sc_mouse_processor *mp,
-                                 const SDL_TouchFingerEvent *event) {
+                                 const struct sc_touch_event *event) {
     struct sc_mouse_inject *mi = DOWNCAST(mp);
 
-    struct control_msg msg;
-    if (convert_touch(event, mi->screen, &msg)) {
-        if (!controller_push_msg(mi->controller, &msg)) {
-            LOGW("Could not request 'inject touch event'");
-        }
-    }
-}
+    struct sc_control_msg msg = {
+        .type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT,
+        .inject_touch_event = {
+            .action = convert_touch_action(event->action),
+            .pointer_id = event->pointer_id,
+            .position = event->position,
+            .pressure = event->pressure,
+            .buttons = 0,
+        },
+    };
 
-static void
-sc_mouse_processor_process_mouse_button(struct sc_mouse_processor *mp,
-                                        const SDL_MouseButtonEvent *event) {
-    struct sc_mouse_inject *mi = DOWNCAST(mp);
-
-    struct control_msg msg;
-    if (convert_mouse_button(event, mi->screen, &msg)) {
-        if (!controller_push_msg(mi->controller, &msg)) {
-            LOGW("Could not request 'inject mouse button event'");
-        }
-    }
-}
-
-static void
-sc_mouse_processor_process_mouse_wheel(struct sc_mouse_processor *mp,
-                                       const SDL_MouseWheelEvent *event) {
-    struct sc_mouse_inject *mi = DOWNCAST(mp);
-
-    struct control_msg msg;
-    if (convert_mouse_wheel(event, mi->screen, &msg)) {
-        if (!controller_push_msg(mi->controller, &msg)) {
-            LOGW("Could not request 'inject mouse wheel event'");
-        }
+    if (!sc_controller_push_msg(mi->controller, &msg)) {
+        LOGW("Could not request 'inject touch event'");
     }
 }
 
 void
-sc_mouse_inject_init(struct sc_mouse_inject *mi, struct controller *controller,
-                     struct screen *screen) {
+sc_mouse_inject_init(struct sc_mouse_inject *mi,
+                     struct sc_controller *controller) {
     mi->controller = controller;
-    mi->screen = screen;
 
     static const struct sc_mouse_processor_ops ops = {
         .process_mouse_motion = sc_mouse_processor_process_mouse_motion,
+        .process_mouse_click = sc_mouse_processor_process_mouse_click,
+        .process_mouse_scroll = sc_mouse_processor_process_mouse_scroll,
         .process_touch = sc_mouse_processor_process_touch,
-        .process_mouse_button = sc_mouse_processor_process_mouse_button,
-        .process_mouse_wheel = sc_mouse_processor_process_mouse_wheel,
     };
 
     mi->mouse_processor.ops = &ops;
+
+    mi->mouse_processor.relative_mode = false;
 }

app/src/mouse_inject.h

@@ -12,12 +12,11 @@
 struct sc_mouse_inject {
     struct sc_mouse_processor mouse_processor; // mouse processor trait
 
-    struct controller *controller;
-    struct screen *screen;
+    struct sc_controller *controller;
 };
 
 void
-sc_mouse_inject_init(struct sc_mouse_inject *mi, struct controller *controller,
-                     struct screen *screen);
+sc_mouse_inject_init(struct sc_mouse_inject *mi,
+                     struct sc_controller *controller);
 
 #endif

app/src/options.c

@@ -22,7 +22,7 @@ const struct scrcpy_options scrcpy_options_default = {
     .tunnel_host = 0,
     .tunnel_port = 0,
     .shortcut_mods = {
-        .data = {SC_MOD_LALT, SC_MOD_LSUPER},
+        .data = {SC_SHORTCUT_MOD_LALT, SC_SHORTCUT_MOD_LSUPER},
         .count = 2,
     },
     .max_size = 0,
@@ -54,6 +54,7 @@ const struct scrcpy_options scrcpy_options_default = {
     .legacy_paste = false,
     .power_off_on_close = false,
     .clipboard_autosync = true,
+    .downsize_on_error = true,
     .tcpip = false,
     .tcpip_dst = NULL,
 };

app/src/options.h

@@ -38,6 +38,11 @@ enum sc_keyboard_input_mode {
     SC_KEYBOARD_INPUT_MODE_HID,
 };
 
+enum sc_mouse_input_mode {
+    SC_MOUSE_INPUT_MODE_INJECT,
+    SC_MOUSE_INPUT_MODE_HID,
+};
+
 enum sc_key_inject_mode {
     // Inject special keys, letters and space as key events.
     // Inject numbers and punctuation as text events.
@@ -55,12 +60,12 @@ enum sc_key_inject_mode {
 #define SC_MAX_SHORTCUT_MODS 8
 
 enum sc_shortcut_mod {
-    SC_MOD_LCTRL = 1 << 0,
-    SC_MOD_RCTRL = 1 << 1,
-    SC_MOD_LALT = 1 << 2,
-    SC_MOD_RALT = 1 << 3,
-    SC_MOD_LSUPER = 1 << 4,
-    SC_MOD_RSUPER = 1 << 5,
+    SC_SHORTCUT_MOD_LCTRL = 1 << 0,
+    SC_SHORTCUT_MOD_RCTRL = 1 << 1,
+    SC_SHORTCUT_MOD_LALT = 1 << 2,
+    SC_SHORTCUT_MOD_RALT = 1 << 3,
+    SC_SHORTCUT_MOD_LSUPER = 1 << 4,
+    SC_SHORTCUT_MOD_RSUPER = 1 << 5,
 };
 
 struct sc_shortcut_mods {
@@ -90,6 +95,7 @@ struct scrcpy_options {
     enum sc_log_level log_level;
     enum sc_record_format record_format;
     enum sc_keyboard_input_mode keyboard_input_mode;
+    enum sc_mouse_input_mode mouse_input_mode;
     struct sc_port_range port_range;
     uint32_t tunnel_host;
     uint16_t tunnel_port;
@@ -123,6 +129,7 @@ struct scrcpy_options {
     bool legacy_paste;
     bool power_off_on_close;
     bool clipboard_autosync;
+    bool downsize_on_error;
     bool tcpip;
     const char *tcpip_dst;
 };

app/src/scrcpy.c

@@ -16,10 +16,10 @@
 #include "controller.h"
 #include "decoder.h"
 #include "events.h"
-#include "file_handler.h"
-#include "input_manager.h"
+#include "file_pusher.h"
 #ifdef HAVE_AOA_HID
 # include "hid_keyboard.h"
+# include "hid_mouse.h"
 #endif
 #include "keyboard_inject.h"
 #include "mouse_inject.h"
@@ -36,15 +36,15 @@
 
 struct scrcpy {
     struct sc_server server;
-    struct screen screen;
+    struct sc_screen screen;
     struct stream stream;
     struct decoder decoder;
     struct recorder recorder;
 #ifdef HAVE_V4L2
     struct sc_v4l2_sink v4l2_sink;
 #endif
-    struct controller controller;
-    struct file_handler file_handler;
+    struct sc_controller controller;
+    struct sc_file_pusher file_pusher;
 #ifdef HAVE_AOA_HID
     struct sc_aoa aoa;
     // sequence/ack helper to synchronize clipboard and Ctrl+v via HID
@@ -56,8 +56,12 @@ struct scrcpy {
         struct sc_hid_keyboard keyboard_hid;
 #endif
     };
-    struct sc_mouse_inject mouse_inject;
-    struct input_manager input_manager;
+    union {
+        struct sc_mouse_inject mouse_inject;
+#ifdef HAVE_AOA_HID
+        struct sc_hid_mouse mouse_hid;
+#endif
+    };
 };
 
 static inline void
@@ -145,73 +149,18 @@ sdl_configure(bool display, bool disable_screensaver) {
 }
 
 static bool
-is_apk(const char *file) {
-    const char *ext = strrchr(file, '.');
-    return ext && !strcmp(ext, ".apk");
-}
-
-enum event_result {
-    EVENT_RESULT_CONTINUE,
-    EVENT_RESULT_STOPPED_BY_USER,
-    EVENT_RESULT_STOPPED_BY_EOS,
-};
-
-static enum event_result
-handle_event(struct scrcpy *s, const struct scrcpy_options *options,
-             SDL_Event *event) {
-    switch (event->type) {
-        case EVENT_STREAM_STOPPED:
-            LOGD("Video stream stopped");
-            return EVENT_RESULT_STOPPED_BY_EOS;
-        case SDL_QUIT:
-            LOGD("User requested to quit");
-            return EVENT_RESULT_STOPPED_BY_USER;
-        case SDL_DROPFILE: {
-            if (!options->control) {
-                break;
-            }
-            char *file = strdup(event->drop.file);
-            SDL_free(event->drop.file);
-            if (!file) {
-                LOGW("Could not strdup drop filename\n");
-                break;
-            }
-
-            file_handler_action_t action;
-            if (is_apk(file)) {
-                action = ACTION_INSTALL_APK;
-            } else {
-                action = ACTION_PUSH_FILE;
-            }
-            file_handler_request(&s->file_handler, action, file);
-            goto end;
-        }
-    }
-
-    bool consumed = screen_handle_event(&s->screen, event);
-    if (consumed) {
-        goto end;
-    }
-
-    consumed = input_manager_handle_event(&s->input_manager, event);
-    (void) consumed;
-
-end:
-    return EVENT_RESULT_CONTINUE;
-}
-
-static bool
-event_loop(struct scrcpy *s, const struct scrcpy_options *options) {
+event_loop(struct scrcpy *s) {
     SDL_Event event;
     while (SDL_WaitEvent(&event)) {
-        enum event_result result = handle_event(s, options, &event);
-        switch (result) {
-            case EVENT_RESULT_STOPPED_BY_USER:
-                return true;
-            case EVENT_RESULT_STOPPED_BY_EOS:
+        switch (event.type) {
+            case EVENT_STREAM_STOPPED:
                 LOGW("Device disconnected");
                 return false;
-            case EVENT_RESULT_CONTINUE:
+            case SDL_QUIT:
+                LOGD("User requested to quit");
+                return true;
+            default:
+                sc_screen_handle_event(&s->screen, &event);
                 break;
         }
     }
@@ -328,7 +277,7 @@ scrcpy(struct scrcpy_options *options) {
     bool ret = false;
 
     bool server_started = false;
-    bool file_handler_initialized = false;
+    bool file_pusher_initialized = false;
     bool recorder_initialized = false;
 #ifdef HAVE_V4L2
     bool v4l2_sink_initialized = false;
@@ -336,6 +285,8 @@ scrcpy(struct scrcpy_options *options) {
     bool stream_started = false;
 #ifdef HAVE_AOA_HID
     bool aoa_hid_initialized = false;
+    bool hid_keyboard_initialized = false;
+    bool hid_mouse_initialized = false;
 #endif
     bool controller_initialized = false;
     bool controller_started = false;
@@ -363,6 +314,7 @@ scrcpy(struct scrcpy_options *options) {
         .force_adb_forward = options->force_adb_forward,
         .power_off_on_close = options->power_off_on_close,
         .clipboard_autosync = options->clipboard_autosync,
+        .downsize_on_error = options->downsize_on_error,
         .tcpip = options->tcpip,
         .tcpip_dst = options->tcpip_dst,
     };
@@ -405,12 +357,15 @@ scrcpy(struct scrcpy_options *options) {
     const char *serial = s->server.params.serial;
     assert(serial);
 
+    struct sc_file_pusher *fp = NULL;
+
     if (options->display && options->control) {
-        if (!file_handler_init(&s->file_handler, serial,
-                               options->push_target)) {
+        if (!sc_file_pusher_init(&s->file_pusher, serial,
+                                 options->push_target)) {
             goto end;
         }
-        file_handler_initialized = true;
+        fp = &s->file_pusher;
+        file_pusher_initialized = true;
     }
 
     struct decoder *dec = NULL;
@@ -450,44 +405,142 @@ scrcpy(struct scrcpy_options *options) {
         stream_add_sink(&s->stream, &rec->packet_sink);
     }
 
+    struct sc_controller *controller = NULL;
+    struct sc_key_processor *kp = NULL;
+    struct sc_mouse_processor *mp = NULL;
+
     if (options->control) {
 #ifdef HAVE_AOA_HID
-        if (options->keyboard_input_mode == SC_KEYBOARD_INPUT_MODE_HID) {
+        bool use_hid_keyboard =
+            options->keyboard_input_mode == SC_KEYBOARD_INPUT_MODE_HID;
+        bool use_hid_mouse =
+            options->mouse_input_mode == SC_MOUSE_INPUT_MODE_HID;
+        if (use_hid_keyboard || use_hid_mouse) {
             bool ok = sc_acksync_init(&s->acksync);
             if (!ok) {
                 goto end;
             }
 
+            ok = sc_aoa_init(&s->aoa, serial, &s->acksync);
+            if (!ok) {
+                LOGE("Failed to enable HID over AOA");
+                sc_acksync_destroy(&s->acksync);
+                goto aoa_hid_end;
+            }
+
+            if (use_hid_keyboard) {
+                if (sc_hid_keyboard_init(&s->keyboard_hid, &s->aoa)) {
+                    hid_keyboard_initialized = true;
+                    kp = &s->keyboard_hid.key_processor;
+                } else {
+                    LOGE("Could not initialize HID keyboard");
+                }
+            }
+
+            if (use_hid_mouse) {
+                if (sc_hid_mouse_init(&s->mouse_hid, &s->aoa)) {
+                    hid_mouse_initialized = true;
+                    mp = &s->mouse_hid.mouse_processor;
+                } else {
+                    LOGE("Could not initialized HID mouse");
+                }
+            }
+
+            bool need_aoa = hid_keyboard_initialized || hid_mouse_initialized;
+
+            if (!need_aoa || !sc_aoa_start(&s->aoa)) {
+                sc_acksync_destroy(&s->acksync);
+                sc_aoa_destroy(&s->aoa);
+                goto aoa_hid_end;
+            }
+
             acksync = &s->acksync;
+
+            aoa_hid_initialized = true;
+
+aoa_hid_end:
+            if (!aoa_hid_initialized) {
+                if (hid_keyboard_initialized) {
+                    sc_hid_keyboard_destroy(&s->keyboard_hid);
+                    hid_keyboard_initialized = false;
+                }
+                if (hid_mouse_initialized) {
+                    sc_hid_mouse_destroy(&s->mouse_hid);
+                    hid_mouse_initialized = false;
+                }
+            }
+
+            if (use_hid_keyboard && !hid_keyboard_initialized) {
+                LOGE("Fallback to default keyboard injection method "
+                     "(-K/--hid-keyboard ignored)");
+                options->keyboard_input_mode = SC_KEYBOARD_INPUT_MODE_INJECT;
+            }
+
+            if (use_hid_mouse && !hid_mouse_initialized) {
+                LOGE("Fallback to default mouse injection method "
+                     "(-M/--hid-mouse ignored)");
+                options->mouse_input_mode = SC_MOUSE_INPUT_MODE_INJECT;
+            }
         }
+#else
+        assert(options->keyboard_input_mode != SC_KEYBOARD_INPUT_MODE_HID);
+        assert(options->mouse_input_mode != SC_MOUSE_INPUT_MODE_HID);
 #endif
-        if (!controller_init(&s->controller, s->server.control_socket,
-                             acksync)) {
+
+        // keyboard_input_mode may have been reset if HID mode failed
+        if (options->keyboard_input_mode == SC_KEYBOARD_INPUT_MODE_INJECT) {
+            sc_keyboard_inject_init(&s->keyboard_inject, &s->controller,
+                                    options->key_inject_mode,
+                                    options->forward_key_repeat);
+            kp = &s->keyboard_inject.key_processor;
+        }
+
+        // mouse_input_mode may have been reset if HID mode failed
+        if (options->mouse_input_mode == SC_MOUSE_INPUT_MODE_INJECT) {
+            sc_mouse_inject_init(&s->mouse_inject, &s->controller);
+            mp = &s->mouse_inject.mouse_processor;
+        }
+
+        if (!sc_controller_init(&s->controller, s->server.control_socket,
+                                acksync)) {
             goto end;
         }
         controller_initialized = true;
 
-        if (!controller_start(&s->controller)) {
+        if (!sc_controller_start(&s->controller)) {
             goto end;
         }
         controller_started = true;
+        controller = &s->controller;
 
         if (options->turn_screen_off) {
-            struct control_msg msg;
+            struct sc_control_msg msg;
             msg.type = CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE;
             msg.set_screen_power_mode.mode = SCREEN_POWER_MODE_OFF;
 
-            if (!controller_push_msg(&s->controller, &msg)) {
+            if (!sc_controller_push_msg(&s->controller, &msg)) {
                 LOGW("Could not request 'set screen power mode'");
             }
         }
+
     }
 
+    // There is a controller if and only if control is enabled
+    assert(options->control == !!controller);
+
     if (options->display) {
         const char *window_title =
             options->window_title ? options->window_title : info->device_name;
 
-        struct screen_params screen_params = {
+        struct sc_screen_params screen_params = {
+            .controller = controller,
+            .fp = fp,
+            .kp = kp,
+            .mp = mp,
+            .forward_all_clicks = options->forward_all_clicks,
+            .legacy_paste = options->legacy_paste,
+            .clipboard_autosync = options->clipboard_autosync,
+            .shortcut_mods = &options->shortcut_mods,
             .window_title = window_title,
             .frame_size = info->frame_size,
             .always_on_top = options->always_on_top,
@@ -502,7 +555,7 @@ scrcpy(struct scrcpy_options *options) {
             .buffering_time = options->display_buffer,
         };
 
-        if (!screen_init(&s->screen, &screen_params)) {
+        if (!sc_screen_init(&s->screen, &screen_params)) {
             goto end;
         }
         screen_initialized = true;
@@ -530,77 +583,24 @@ scrcpy(struct scrcpy_options *options) {
     }
     stream_started = true;
 
-    struct sc_key_processor *kp = NULL;
-    struct sc_mouse_processor *mp = NULL;
-
-    if (options->control) {
-        if (options->keyboard_input_mode == SC_KEYBOARD_INPUT_MODE_HID) {
-#ifdef HAVE_AOA_HID
-            bool aoa_hid_ok = false;
-
-            bool ok = sc_aoa_init(&s->aoa, serial, acksync);
-            if (!ok) {
-                goto aoa_hid_end;
-            }
-
-            if (!sc_hid_keyboard_init(&s->keyboard_hid, &s->aoa)) {
-                sc_aoa_destroy(&s->aoa);
-                goto aoa_hid_end;
-            }
-
-            if (!sc_aoa_start(&s->aoa)) {
-                sc_hid_keyboard_destroy(&s->keyboard_hid);
-                sc_aoa_destroy(&s->aoa);
-                goto aoa_hid_end;
-            }
-
-            aoa_hid_ok = true;
-            kp = &s->keyboard_hid.key_processor;
-
-            aoa_hid_initialized = true;
-
-aoa_hid_end:
-            if (!aoa_hid_ok) {
-                LOGE("Failed to enable HID over AOA, "
-                     "fallback to default keyboard injection method "
-                     "(-K/--hid-keyboard ignored)");
-                options->keyboard_input_mode = SC_KEYBOARD_INPUT_MODE_INJECT;
-            }
-#else
-            LOGE("HID over AOA is not supported on this platform, "
-                 "fallback to default keyboard injection method "
-                 "(-K/--hid-keyboard ignored)");
-            options->keyboard_input_mode = SC_KEYBOARD_INPUT_MODE_INJECT;
-#endif
-        }
-
-        // keyboard_input_mode may have been reset if HID mode failed
-        if (options->keyboard_input_mode == SC_KEYBOARD_INPUT_MODE_INJECT) {
-            sc_keyboard_inject_init(&s->keyboard_inject, &s->controller,
-                                    options);
-            kp = &s->keyboard_inject.key_processor;
-        }
-
-        sc_mouse_inject_init(&s->mouse_inject, &s->controller, &s->screen);
-        mp = &s->mouse_inject.mouse_processor;
-    }
-
-    input_manager_init(&s->input_manager, &s->controller, &s->screen, kp, mp,
-                       options);
-
-    ret = event_loop(s, options);
+    ret = event_loop(s);
     LOGD("quit...");
 
     // Close the window immediately on closing, because screen_destroy() may
     // only be called once the stream thread is joined (it may take time)
-    screen_hide_window(&s->screen);
+    sc_screen_hide_window(&s->screen);
 
 end:
     // The stream is not stopped explicitly, because it will stop by itself on
     // end-of-stream
 #ifdef HAVE_AOA_HID
     if (aoa_hid_initialized) {
-        sc_hid_keyboard_destroy(&s->keyboard_hid);
+        if (hid_keyboard_initialized) {
+            sc_hid_keyboard_destroy(&s->keyboard_hid);
+        }
+        if (hid_mouse_initialized) {
+            sc_hid_mouse_destroy(&s->mouse_hid);
+        }
         sc_aoa_stop(&s->aoa);
     }
     if (acksync) {
@@ -608,13 +608,13 @@ end:
     }
 #endif
     if (controller_started) {
-        controller_stop(&s->controller);
+        sc_controller_stop(&s->controller);
     }
-    if (file_handler_initialized) {
-        file_handler_stop(&s->file_handler);
+    if (file_pusher_initialized) {
+        sc_file_pusher_stop(&s->file_pusher);
     }
     if (screen_initialized) {
-        screen_interrupt(&s->screen);
+        sc_screen_interrupt(&s->screen);
     }
 
     if (server_started) {
@@ -644,24 +644,24 @@ end:
     // Destroy the screen only after the stream is guaranteed to be finished,
     // because otherwise the screen could receive new frames after destruction
     if (screen_initialized) {
-        screen_join(&s->screen);
-        screen_destroy(&s->screen);
+        sc_screen_join(&s->screen);
+        sc_screen_destroy(&s->screen);
     }
 
     if (controller_started) {
-        controller_join(&s->controller);
+        sc_controller_join(&s->controller);
     }
     if (controller_initialized) {
-        controller_destroy(&s->controller);
+        sc_controller_destroy(&s->controller);
     }
 
     if (recorder_initialized) {
         recorder_destroy(&s->recorder);
     }
 
-    if (file_handler_initialized) {
-        file_handler_join(&s->file_handler);
-        file_handler_destroy(&s->file_handler);
+    if (file_pusher_initialized) {
+        sc_file_pusher_join(&s->file_pusher);
+        sc_file_pusher_destroy(&s->file_pusher);
     }
 
     sc_server_destroy(&s->server);

app/src/screen.c

@@ -12,7 +12,7 @@
 
 #define DISPLAY_MARGINS 96
 
-#define DOWNCAST(SINK) container_of(SINK, struct screen, frame_sink)
+#define DOWNCAST(SINK) container_of(SINK, struct sc_screen, frame_sink)
 
 static inline struct sc_size
 get_rotated_size(struct sc_size size, int rotation) {
@@ -29,7 +29,7 @@ get_rotated_size(struct sc_size size, int rotation) {
 
 // get the window size in a struct sc_size
 static struct sc_size
-get_window_size(const struct screen *screen) {
+get_window_size(const struct sc_screen *screen) {
     int width;
     int height;
     SDL_GetWindowSize(screen->window, &width, &height);
@@ -41,7 +41,7 @@ get_window_size(const struct screen *screen) {
 }
 
 static struct sc_point
-get_window_position(const struct screen *screen) {
+get_window_position(const struct sc_screen *screen) {
     int x;
     int y;
     SDL_GetWindowPosition(screen->window, &x, &y);
@@ -54,7 +54,7 @@ get_window_position(const struct screen *screen) {
 
 // set the window size to be applied when fullscreen is disabled
 static void
-set_window_size(struct screen *screen, struct sc_size new_size) {
+set_window_size(struct sc_screen *screen, struct sc_size new_size) {
     assert(!screen->fullscreen);
     assert(!screen->maximized);
     SDL_SetWindowSize(screen->window, new_size.width, new_size.height);
@@ -90,7 +90,8 @@ is_optimal_size(struct sc_size current_size, struct sc_size content_size) {
 //  - it keeps the aspect ratio
 //  - it scales down to make it fit in the display_size
 static struct sc_size
-get_optimal_size(struct sc_size current_size, struct sc_size content_size) {
+get_optimal_size(struct sc_size current_size, struct sc_size content_size,
+                 bool within_display_bounds) {
     if (content_size.width == 0 || content_size.height == 0) {
         // avoid division by 0
         return current_size;
@@ -99,10 +100,10 @@ get_optimal_size(struct sc_size current_size, struct sc_size content_size) {
     struct sc_size window_size;
 
     struct sc_size display_size;
-    if (!get_preferred_display_bounds(&display_size)) {
-        // could not get display bounds, do not constraint the size
-        window_size.width = current_size.width;
-        window_size.height = current_size.height;
+    if (!within_display_bounds ||
+            !get_preferred_display_bounds(&display_size)) {
+        // do not constraint the size
+        window_size = current_size;
     } else {
         window_size.width = MIN(current_size.width, display_size.width);
         window_size.height = MIN(current_size.height, display_size.height);
@@ -135,7 +136,7 @@ get_initial_optimal_size(struct sc_size content_size, uint16_t req_width,
                          uint16_t req_height) {
     struct sc_size window_size;
     if (!req_width && !req_height) {
-        window_size = get_optimal_size(content_size, content_size);
+        window_size = get_optimal_size(content_size, content_size, true);
     } else {
         if (req_width) {
             window_size.width = req_width;
@@ -155,8 +156,25 @@ get_initial_optimal_size(struct sc_size content_size, uint16_t req_width,
     return window_size;
 }
 
+static inline bool
+sc_screen_is_relative_mode(struct sc_screen *screen) {
+    // screen->im.mp may be NULL if --no-control
+    return screen->im.mp && screen->im.mp->relative_mode;
+}
+
 static void
-screen_update_content_rect(struct screen *screen) {
+sc_screen_capture_mouse(struct sc_screen *screen, bool capture) {
+    if (SDL_SetRelativeMouseMode(capture)) {
+        LOGE("Could not set relative mouse mode to %s: %s",
+             capture ? "true" : "false", SDL_GetError());
+        return;
+    }
+
+    screen->mouse_captured = capture;
+}
+
+static void
+sc_screen_update_content_rect(struct sc_screen *screen) {
     int dw;
     int dh;
     SDL_GL_GetDrawableSize(screen->window, &dw, &dh);
@@ -193,7 +211,7 @@ screen_update_content_rect(struct screen *screen) {
 }
 
 static inline SDL_Texture *
-create_texture(struct screen *screen) {
+create_texture(struct sc_screen *screen) {
     SDL_Renderer *renderer = screen->renderer;
     struct sc_size size = screen->frame_size;
     SDL_Texture *texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_YV12,
@@ -224,9 +242,9 @@ create_texture(struct screen *screen) {
 // Set the update_content_rect flag if the window or content size may have
 // changed, so that the content rectangle is recomputed
 static void
-screen_render(struct screen *screen, bool update_content_rect) {
+sc_screen_render(struct sc_screen *screen, bool update_content_rect) {
     if (update_content_rect) {
-        screen_update_content_rect(screen);
+        sc_screen_update_content_rect(screen);
     }
 
     SDL_RenderClear(screen->renderer);
@@ -270,20 +288,20 @@ screen_render(struct screen *screen, bool update_content_rect) {
 // <https://stackoverflow.com/a/40693139/1987178>
 static int
 event_watcher(void *data, SDL_Event *event) {
-    struct screen *screen = data;
+    struct sc_screen *screen = data;
     if (event->type == SDL_WINDOWEVENT
             && event->window.event == SDL_WINDOWEVENT_RESIZED) {
         // In practice, it seems to always be called from the same thread in
         // that specific case. Anyway, it's just a workaround.
-        screen_render(screen, true);
+        sc_screen_render(screen, true);
     }
     return 0;
 }
 #endif
 
 static bool
-screen_frame_sink_open(struct sc_frame_sink *sink) {
-    struct screen *screen = DOWNCAST(sink);
+sc_screen_frame_sink_open(struct sc_frame_sink *sink) {
+    struct sc_screen *screen = DOWNCAST(sink);
     (void) screen;
 #ifndef NDEBUG
     screen->open = true;
@@ -294,8 +312,8 @@ screen_frame_sink_open(struct sc_frame_sink *sink) {
 }
 
 static void
-screen_frame_sink_close(struct sc_frame_sink *sink) {
-    struct screen *screen = DOWNCAST(sink);
+sc_screen_frame_sink_close(struct sc_frame_sink *sink) {
+    struct sc_screen *screen = DOWNCAST(sink);
     (void) screen;
 #ifndef NDEBUG
     screen->open = false;
@@ -305,8 +323,8 @@ screen_frame_sink_close(struct sc_frame_sink *sink) {
 }
 
 static bool
-screen_frame_sink_push(struct sc_frame_sink *sink, const AVFrame *frame) {
-    struct screen *screen = DOWNCAST(sink);
+sc_screen_frame_sink_push(struct sc_frame_sink *sink, const AVFrame *frame) {
+    struct sc_screen *screen = DOWNCAST(sink);
     return sc_video_buffer_push(&screen->vb, frame);
 }
 
@@ -314,7 +332,7 @@ static void
 sc_video_buffer_on_new_frame(struct sc_video_buffer *vb, bool previous_skipped,
                              void *userdata) {
     (void) vb;
-    struct screen *screen = userdata;
+    struct sc_screen *screen = userdata;
 
     // event_failed implies previous_skipped (the previous frame may not have
     // been consumed if the event was not sent)
@@ -347,12 +365,21 @@ sc_video_buffer_on_new_frame(struct sc_video_buffer *vb, bool previous_skipped,
 }
 
 bool
-screen_init(struct screen *screen, const struct screen_params *params) {
+sc_screen_init(struct sc_screen *screen,
+               const struct sc_screen_params *params) {
     screen->resize_pending = false;
     screen->has_frame = false;
     screen->fullscreen = false;
     screen->maximized = false;
     screen->event_failed = false;
+    screen->mouse_captured = false;
+    screen->mouse_capture_key_pressed = 0;
+
+    screen->req.x = params->window_x;
+    screen->req.y = params->window_y;
+    screen->req.width = params->window_width;
+    screen->req.height = params->window_height;
+    screen->req.fullscreen = params->fullscreen;
 
     static const struct sc_video_buffer_callbacks cbs = {
         .on_new_frame = sc_video_buffer_on_new_frame,
@@ -382,9 +409,6 @@ screen_init(struct screen *screen, const struct screen_params *params) {
         get_rotated_size(screen->frame_size, screen->rotation);
     screen->content_size = content_size;
 
-    struct sc_size window_size =
-        get_initial_optimal_size(content_size,params->window_width,
-                                 params->window_height);
     uint32_t window_flags = SDL_WINDOW_HIDDEN
                           | SDL_WINDOW_RESIZABLE
                           | SDL_WINDOW_ALLOW_HIGHDPI;
@@ -395,13 +419,9 @@ screen_init(struct screen *screen, const struct screen_params *params) {
         window_flags |= SDL_WINDOW_BORDERLESS;
     }
 
-    int x = params->window_x != SC_WINDOW_POSITION_UNDEFINED
-          ? params->window_x : (int) SDL_WINDOWPOS_UNDEFINED;
-    int y = params->window_y != SC_WINDOW_POSITION_UNDEFINED
-          ? params->window_y : (int) SDL_WINDOWPOS_UNDEFINED;
-    screen->window = SDL_CreateWindow(params->window_title, x, y,
-                                      window_size.width, window_size.height,
-                                      window_flags);
+    // The window will be positioned and sized on first video frame
+    screen->window =
+        SDL_CreateWindow(params->window_title, 0, 0, 0, 0, window_flags);
     if (!screen->window) {
         LOGC("Could not create window: %s", SDL_GetError());
         goto error_destroy_fps_counter;
@@ -469,25 +489,28 @@ screen_init(struct screen *screen, const struct screen_params *params) {
         goto error_destroy_texture;
     }
 
-    // Reset the window size to trigger a SIZE_CHANGED event, to workaround
-    // HiDPI issues with some SDL renderers when several displays having
-    // different HiDPI scaling are connected
-    SDL_SetWindowSize(screen->window, window_size.width, window_size.height);
+    struct sc_input_manager_params im_params = {
+        .controller = params->controller,
+        .fp = params->fp,
+        .screen = screen,
+        .kp = params->kp,
+        .mp = params->mp,
+        .forward_all_clicks = params->forward_all_clicks,
+        .legacy_paste = params->legacy_paste,
+        .clipboard_autosync = params->clipboard_autosync,
+        .shortcut_mods = params->shortcut_mods,
+    };
 
-    screen_update_content_rect(screen);
-
-    if (params->fullscreen) {
-        screen_switch_fullscreen(screen);
-    }
+    sc_input_manager_init(&screen->im, &im_params);
 
 #ifdef CONTINUOUS_RESIZING_WORKAROUND
     SDL_AddEventWatch(event_watcher, screen);
 #endif
 
     static const struct sc_frame_sink_ops ops = {
-        .open = screen_frame_sink_open,
-        .close = screen_frame_sink_close,
-        .push = screen_frame_sink_push,
+        .open = sc_screen_frame_sink_open,
+        .close = sc_screen_frame_sink_close,
+        .push = sc_screen_frame_sink_push,
     };
 
     screen->frame_sink.ops = &ops;
@@ -516,29 +539,45 @@ error_destroy_video_buffer:
 }
 
 static void
-screen_show_window(struct screen *screen) {
+sc_screen_show_initial_window(struct sc_screen *screen) {
+    int x = screen->req.x != SC_WINDOW_POSITION_UNDEFINED
+          ? screen->req.x : (int) SDL_WINDOWPOS_CENTERED;
+    int y = screen->req.y != SC_WINDOW_POSITION_UNDEFINED
+          ? screen->req.y : (int) SDL_WINDOWPOS_CENTERED;
+
+    struct sc_size window_size =
+        get_initial_optimal_size(screen->content_size, screen->req.width,
+                                                       screen->req.height);
+
+    set_window_size(screen, window_size);
+    SDL_SetWindowPosition(screen->window, x, y);
+
+    if (screen->req.fullscreen) {
+        sc_screen_switch_fullscreen(screen);
+    }
+
     SDL_ShowWindow(screen->window);
 }
 
 void
-screen_hide_window(struct screen *screen) {
+sc_screen_hide_window(struct sc_screen *screen) {
     SDL_HideWindow(screen->window);
 }
 
 void
-screen_interrupt(struct screen *screen) {
+sc_screen_interrupt(struct sc_screen *screen) {
     sc_video_buffer_stop(&screen->vb);
     fps_counter_interrupt(&screen->fps_counter);
 }
 
 void
-screen_join(struct screen *screen) {
+sc_screen_join(struct sc_screen *screen) {
     sc_video_buffer_join(&screen->vb);
     fps_counter_join(&screen->fps_counter);
 }
 
 void
-screen_destroy(struct screen *screen) {
+sc_screen_destroy(struct sc_screen *screen) {
 #ifndef NDEBUG
     assert(!screen->open);
 #endif
@@ -551,7 +590,7 @@ screen_destroy(struct screen *screen) {
 }
 
 static void
-resize_for_content(struct screen *screen, struct sc_size old_content_size,
+resize_for_content(struct sc_screen *screen, struct sc_size old_content_size,
                    struct sc_size new_content_size) {
     struct sc_size window_size = get_window_size(screen);
     struct sc_size target_size = {
@@ -560,12 +599,12 @@ resize_for_content(struct screen *screen, struct sc_size old_content_size,
         .height = (uint32_t) window_size.height * new_content_size.height
                 / old_content_size.height,
     };
-    target_size = get_optimal_size(target_size, new_content_size);
+    target_size = get_optimal_size(target_size, new_content_size, true);
     set_window_size(screen, target_size);
 }
 
 static void
-set_content_size(struct screen *screen, struct sc_size new_content_size) {
+set_content_size(struct sc_screen *screen, struct sc_size new_content_size) {
     if (!screen->fullscreen && !screen->maximized) {
         resize_for_content(screen, screen->content_size, new_content_size);
     } else if (!screen->resize_pending) {
@@ -579,7 +618,7 @@ set_content_size(struct screen *screen, struct sc_size new_content_size) {
 }
 
 static void
-apply_pending_resize(struct screen *screen) {
+apply_pending_resize(struct sc_screen *screen) {
     assert(!screen->fullscreen);
     assert(!screen->maximized);
     if (screen->resize_pending) {
@@ -590,7 +629,7 @@ apply_pending_resize(struct screen *screen) {
 }
 
 void
-screen_set_rotation(struct screen *screen, unsigned rotation) {
+sc_screen_set_rotation(struct sc_screen *screen, unsigned rotation) {
     assert(rotation < 4);
     if (rotation == screen->rotation) {
         return;
@@ -604,12 +643,12 @@ screen_set_rotation(struct screen *screen, unsigned rotation) {
     screen->rotation = rotation;
     LOGI("Display rotation set to %u", rotation);
 
-    screen_render(screen, true);
+    sc_screen_render(screen, true);
 }
 
 // recreate the texture and resize the window if the frame size has changed
 static bool
-prepare_for_frame(struct screen *screen, struct sc_size new_frame_size) {
+prepare_for_frame(struct sc_screen *screen, struct sc_size new_frame_size) {
     if (screen->frame_size.width != new_frame_size.width
             || screen->frame_size.height != new_frame_size.height) {
         // frame dimension changed, destroy texture
@@ -621,7 +660,7 @@ prepare_for_frame(struct screen *screen, struct sc_size new_frame_size) {
             get_rotated_size(new_frame_size, screen->rotation);
         set_content_size(screen, new_content_size);
 
-        screen_update_content_rect(screen);
+        sc_screen_update_content_rect(screen);
 
         LOGI("New texture: %" PRIu16 "x%" PRIu16,
                      screen->frame_size.width, screen->frame_size.height);
@@ -637,7 +676,7 @@ prepare_for_frame(struct screen *screen, struct sc_size new_frame_size) {
 
 // write the frame into the texture
 static void
-update_texture(struct screen *screen, const AVFrame *frame) {
+update_texture(struct sc_screen *screen, const AVFrame *frame) {
     SDL_UpdateYUVTexture(screen->texture, NULL,
             frame->data[0], frame->linesize[0],
             frame->data[1], frame->linesize[1],
@@ -651,7 +690,7 @@ update_texture(struct screen *screen, const AVFrame *frame) {
 }
 
 static bool
-screen_update_frame(struct screen *screen) {
+sc_screen_update_frame(struct sc_screen *screen) {
     av_frame_unref(screen->frame);
     sc_video_buffer_consume(&screen->vb, screen->frame);
     AVFrame *frame = screen->frame;
@@ -664,12 +703,23 @@ screen_update_frame(struct screen *screen) {
     }
     update_texture(screen, frame);
 
-    screen_render(screen, false);
+    if (!screen->has_frame) {
+        screen->has_frame = true;
+        // this is the very first frame, show the window
+        sc_screen_show_initial_window(screen);
+
+        if (sc_screen_is_relative_mode(screen)) {
+            // Capture mouse on start
+            sc_screen_capture_mouse(screen, true);
+        }
+    }
+
+    sc_screen_render(screen, false);
     return true;
 }
 
 void
-screen_switch_fullscreen(struct screen *screen) {
+sc_screen_switch_fullscreen(struct sc_screen *screen) {
     uint32_t new_mode = screen->fullscreen ? 0 : SDL_WINDOW_FULLSCREEN_DESKTOP;
     if (SDL_SetWindowFullscreen(screen->window, new_mode)) {
         LOGW("Could not switch fullscreen mode: %s", SDL_GetError());
@@ -682,11 +732,11 @@ screen_switch_fullscreen(struct screen *screen) {
     }
 
     LOGD("Switched to %s mode", screen->fullscreen ? "fullscreen" : "windowed");
-    screen_render(screen, true);
+    sc_screen_render(screen, true);
 }
 
 void
-screen_resize_to_fit(struct screen *screen) {
+sc_screen_resize_to_fit(struct sc_screen *screen) {
     if (screen->fullscreen || screen->maximized) {
         return;
     }
@@ -695,7 +745,7 @@ screen_resize_to_fit(struct screen *screen) {
     struct sc_size window_size = get_window_size(screen);
 
     struct sc_size optimal_size =
-        get_optimal_size(window_size, screen->content_size);
+        get_optimal_size(window_size, screen->content_size, false);
 
     // Center the window related to the device screen
     assert(optimal_size.width <= window_size.width);
@@ -710,7 +760,7 @@ screen_resize_to_fit(struct screen *screen) {
 }
 
 void
-screen_resize_to_pixel_perfect(struct screen *screen) {
+sc_screen_resize_to_pixel_perfect(struct sc_screen *screen) {
     if (screen->fullscreen) {
         return;
     }
@@ -726,31 +776,34 @@ screen_resize_to_pixel_perfect(struct screen *screen) {
                                             content_size.height);
 }
 
-bool
-screen_handle_event(struct screen *screen, SDL_Event *event) {
+static inline bool
+sc_screen_is_mouse_capture_key(SDL_Keycode key) {
+    return key == SDLK_LALT || key == SDLK_LGUI || key == SDLK_RGUI;
+}
+
+void
+sc_screen_handle_event(struct sc_screen *screen, SDL_Event *event) {
+    bool relative_mode = sc_screen_is_relative_mode(screen);
+
     switch (event->type) {
-        case EVENT_NEW_FRAME:
-            if (!screen->has_frame) {
-                screen->has_frame = true;
-                // this is the very first frame, show the window
-                screen_show_window(screen);
-            }
-            bool ok = screen_update_frame(screen);
+        case EVENT_NEW_FRAME: {
+            bool ok = sc_screen_update_frame(screen);
             if (!ok) {
                 LOGW("Frame update failed\n");
             }
-            return true;
+            return;
+        }
         case SDL_WINDOWEVENT:
             if (!screen->has_frame) {
                 // Do nothing
-                return true;
+                return;
             }
             switch (event->window.event) {
                 case SDL_WINDOWEVENT_EXPOSED:
-                    screen_render(screen, true);
+                    sc_screen_render(screen, true);
                     break;
                 case SDL_WINDOWEVENT_SIZE_CHANGED:
-                    screen_render(screen, true);
+                    sc_screen_render(screen, true);
                     break;
                 case SDL_WINDOWEVENT_MAXIMIZED:
                     screen->maximized = true;
@@ -766,18 +819,80 @@ screen_handle_event(struct screen *screen, SDL_Event *event) {
                     }
                     screen->maximized = false;
                     apply_pending_resize(screen);
-                    screen_render(screen, true);
+                    sc_screen_render(screen, true);
+                    break;
+                case SDL_WINDOWEVENT_FOCUS_LOST:
+                    if (relative_mode) {
+                        sc_screen_capture_mouse(screen, false);
+                    }
                     break;
             }
-            return true;
+            return;
+        case SDL_KEYDOWN:
+            if (relative_mode) {
+                SDL_Keycode key = event->key.keysym.sym;
+                if (sc_screen_is_mouse_capture_key(key)) {
+                    if (!screen->mouse_capture_key_pressed) {
+                        screen->mouse_capture_key_pressed = key;
+                    } else {
+                        // Another mouse capture key has been pressed, cancel
+                        // mouse (un)capture
+                        screen->mouse_capture_key_pressed = 0;
+                    }
+                    // Mouse capture keys are never forwarded to the device
+                    return;
+                }
+            }
+            break;
+        case SDL_KEYUP:
+            if (relative_mode) {
+                SDL_Keycode key = event->key.keysym.sym;
+                SDL_Keycode cap = screen->mouse_capture_key_pressed;
+                screen->mouse_capture_key_pressed = 0;
+                if (sc_screen_is_mouse_capture_key(key)) {
+                    if (key == cap) {
+                        // A mouse capture key has been pressed then released:
+                        // toggle the capture mouse mode
+                        sc_screen_capture_mouse(screen,
+                                                !screen->mouse_captured);
+                    }
+                    // Mouse capture keys are never forwarded to the device
+                    return;
+                }
+            }
+            break;
+        case SDL_MOUSEWHEEL:
+        case SDL_MOUSEMOTION:
+        case SDL_MOUSEBUTTONDOWN:
+            if (relative_mode && !screen->mouse_captured) {
+                // Do not forward to input manager, the mouse will be captured
+                // on SDL_MOUSEBUTTONUP
+                return;
+            }
+            break;
+        case SDL_FINGERMOTION:
+        case SDL_FINGERDOWN:
+        case SDL_FINGERUP:
+            if (relative_mode) {
+                // Touch events are not compatible with relative mode
+                // (coordinates are not relative)
+                return;
+            }
+            break;
+        case SDL_MOUSEBUTTONUP:
+            if (relative_mode && !screen->mouse_captured) {
+                sc_screen_capture_mouse(screen, true);
+                return;
+            }
+            break;
     }
 
-    return false;
+    sc_input_manager_handle_event(&screen->im, event);
 }
 
 struct sc_point
-screen_convert_drawable_to_frame_coords(struct screen *screen,
-                                        int32_t x, int32_t y) {
+sc_screen_convert_drawable_to_frame_coords(struct sc_screen *screen,
+                                           int32_t x, int32_t y) {
     unsigned rotation = screen->rotation;
     assert(rotation < 4);
 
@@ -813,14 +928,14 @@ screen_convert_drawable_to_frame_coords(struct screen *screen,
 }
 
 struct sc_point
-screen_convert_window_to_frame_coords(struct screen *screen,
-                                      int32_t x, int32_t y) {
-    screen_hidpi_scale_coords(screen, &x, &y);
-    return screen_convert_drawable_to_frame_coords(screen, x, y);
+sc_screen_convert_window_to_frame_coords(struct sc_screen *screen,
+                                         int32_t x, int32_t y) {
+    sc_screen_hidpi_scale_coords(screen, &x, &y);
+    return sc_screen_convert_drawable_to_frame_coords(screen, x, y);
 }
 
 void
-screen_hidpi_scale_coords(struct screen *screen, int32_t *x, int32_t *y) {
+sc_screen_hidpi_scale_coords(struct sc_screen *screen, int32_t *x, int32_t *y) {
     // take the HiDPI scaling (dw/ww and dh/wh) into account
     int ww, wh, dw, dh;
     SDL_GetWindowSize(screen->window, &ww, &wh);

app/src/screen.h

@@ -7,22 +7,36 @@
 #include <SDL2/SDL.h>
 #include <libavformat/avformat.h>
 
+#include "controller.h"
 #include "coords.h"
 #include "fps_counter.h"
+#include "input_manager.h"
 #include "opengl.h"
+#include "trait/key_processor.h"
 #include "trait/frame_sink.h"
+#include "trait/mouse_processor.h"
 #include "video_buffer.h"
 
-struct screen {
+struct sc_screen {
     struct sc_frame_sink frame_sink; // frame sink trait
 
 #ifndef NDEBUG
     bool open; // track the open/close state to assert correct behavior
 #endif
 
+    struct sc_input_manager im;
     struct sc_video_buffer vb;
     struct fps_counter fps_counter;
 
+    // The initial requested window properties
+    struct {
+        int16_t x;
+        int16_t y;
+        uint16_t width;
+        uint16_t height;
+        bool fullscreen;
+    } req;
+
     SDL_Window *window;
     SDL_Renderer *renderer;
     SDL_Texture *texture;
@@ -46,18 +60,33 @@ struct screen {
 
     bool event_failed; // in case SDL_PushEvent() returned an error
 
+    bool mouse_captured; // only relevant in relative mouse mode
+    // To enable/disable mouse capture, a mouse capture key (LALT, LGUI or
+    // RGUI) must be pressed. This variable tracks the pressed capture key.
+    SDL_Keycode mouse_capture_key_pressed;
+
     AVFrame *frame;
 };
 
-struct screen_params {
+struct sc_screen_params {
+    struct sc_controller *controller;
+    struct sc_file_pusher *fp;
+    struct sc_key_processor *kp;
+    struct sc_mouse_processor *mp;
+
+    bool forward_all_clicks;
+    bool legacy_paste;
+    bool clipboard_autosync;
+    const struct sc_shortcut_mods *shortcut_mods;
+
     const char *window_title;
     struct sc_size frame_size;
     bool always_on_top;
 
-    int16_t window_x;
-    int16_t window_y;
-    uint16_t window_width;  // accepts SC_WINDOW_POSITION_UNDEFINED
-    uint16_t window_height; // accepts SC_WINDOW_POSITION_UNDEFINED
+    int16_t window_x; // accepts SC_WINDOW_POSITION_UNDEFINED
+    int16_t window_y; // accepts SC_WINDOW_POSITION_UNDEFINED
+    uint16_t window_width;
+    uint16_t window_height;
 
     bool window_borderless;
 
@@ -71,65 +100,65 @@ struct screen_params {
 
 // initialize screen, create window, renderer and texture (window is hidden)
 bool
-screen_init(struct screen *screen, const struct screen_params *params);
+sc_screen_init(struct sc_screen *screen, const struct sc_screen_params *params);
 
 // request to interrupt any inner thread
 // must be called before screen_join()
 void
-screen_interrupt(struct screen *screen);
+sc_screen_interrupt(struct sc_screen *screen);
 
 // join any inner thread
 void
-screen_join(struct screen *screen);
+sc_screen_join(struct sc_screen *screen);
 
 // destroy window, renderer and texture (if any)
 void
-screen_destroy(struct screen *screen);
+sc_screen_destroy(struct sc_screen *screen);
 
 // hide the window
 //
 // It is used to hide the window immediately on closing without waiting for
 // screen_destroy()
 void
-screen_hide_window(struct screen *screen);
+sc_screen_hide_window(struct sc_screen *screen);
 
 // switch the fullscreen mode
 void
-screen_switch_fullscreen(struct screen *screen);
+sc_screen_switch_fullscreen(struct sc_screen *screen);
 
 // resize window to optimal size (remove black borders)
 void
-screen_resize_to_fit(struct screen *screen);
+sc_screen_resize_to_fit(struct sc_screen *screen);
 
 // resize window to 1:1 (pixel-perfect)
 void
-screen_resize_to_pixel_perfect(struct screen *screen);
+sc_screen_resize_to_pixel_perfect(struct sc_screen *screen);
 
 // set the display rotation (0, 1, 2 or 3, x90 degrees counterclockwise)
 void
-screen_set_rotation(struct screen *screen, unsigned rotation);
+sc_screen_set_rotation(struct sc_screen *screen, unsigned rotation);
 
 // react to SDL events
-bool
-screen_handle_event(struct screen *screen, SDL_Event *event);
+void
+sc_screen_handle_event(struct sc_screen *screen, SDL_Event *event);
 
 // convert point from window coordinates to frame coordinates
 // x and y are expressed in pixels
 struct sc_point
-screen_convert_window_to_frame_coords(struct screen *screen,
-                                      int32_t x, int32_t y);
+sc_screen_convert_window_to_frame_coords(struct sc_screen *screen,
+                                        int32_t x, int32_t y);
 
 // convert point from drawable coordinates to frame coordinates
 // x and y are expressed in pixels
 struct sc_point
-screen_convert_drawable_to_frame_coords(struct screen *screen,
-                                        int32_t x, int32_t y);
+sc_screen_convert_drawable_to_frame_coords(struct sc_screen *screen,
+                                          int32_t x, int32_t y);
 
 // Convert coordinates from window to drawable.
 // Events are expressed in window coordinates, but content is expressed in
 // drawable coordinates. They are the same if HiDPI scaling is 1, but differ
 // otherwise.
 void
-screen_hidpi_scale_coords(struct screen *screen, int32_t *x, int32_t *y);
+sc_screen_hidpi_scale_coords(struct sc_screen *screen, int32_t *x, int32_t *y);
 
 #endif

app/src/server.c

@@ -188,7 +188,6 @@ execute_server(struct sc_server *server,
         } \
         cmd[count++] = p; \
     }
-#define STRBOOL(v) (v ? "true" : "false")
 
     ADD_PARAM("log_level=%s", log_level_to_server_string(params->log_level));
     ADD_PARAM("bit_rate=%" PRIu32, params->bit_rate);
@@ -204,23 +203,23 @@ execute_server(struct sc_server *server,
                   params->lock_video_orientation);
     }
     if (server->tunnel.forward) {
-        ADD_PARAM("tunnel_forward=%s", STRBOOL(server->tunnel.forward));
+        ADD_PARAM("tunnel_forward=true");
     }
     if (params->crop) {
         ADD_PARAM("crop=%s", params->crop);
     }
     if (!params->control) {
         // By default, control is true
-        ADD_PARAM("control=%s", STRBOOL(params->control));
+        ADD_PARAM("control=false");
     }
     if (params->display_id) {
         ADD_PARAM("display_id=%" PRIu32, params->display_id);
     }
     if (params->show_touches) {
-        ADD_PARAM("show_touches=%s", STRBOOL(params->show_touches));
+        ADD_PARAM("show_touches=true");
     }
     if (params->stay_awake) {
-        ADD_PARAM("stay_awake=%s", STRBOOL(params->stay_awake));
+        ADD_PARAM("stay_awake=true");
     }
     if (params->codec_options) {
         ADD_PARAM("codec_options=%s", params->codec_options);
@@ -229,11 +228,15 @@ execute_server(struct sc_server *server,
         ADD_PARAM("encoder_name=%s", params->encoder_name);
     }
     if (params->power_off_on_close) {
-        ADD_PARAM("power_off_on_close=%s", STRBOOL(params->power_off_on_close));
+        ADD_PARAM("power_off_on_close=true");
     }
     if (!params->clipboard_autosync) {
-        // By defaut, clipboard_autosync is true
-        ADD_PARAM("clipboard_autosync=%s", STRBOOL(params->clipboard_autosync));
+        // By default, clipboard_autosync is true
+        ADD_PARAM("clipboard_autosync=false");
+    }
+    if (!params->downsize_on_error) {
+        // By default, downsize_on_error is true
+        ADD_PARAM("downsize_on_error=false");
     }
 
 #undef ADD_PARAM

app/src/server.h

@@ -42,6 +42,7 @@ struct sc_server_params {
     bool force_adb_forward;
     bool power_off_on_close;
     bool clipboard_autosync;
+    bool downsize_on_error;
     bool tcpip;
     const char *tcpip_dst;
 };

app/src/stream.c

@@ -1,7 +1,6 @@
 #include "stream.h"
 
 #include <assert.h>
-#include <libavformat/avformat.h>
 #include <libavutil/time.h>
 #include <unistd.h>
 
@@ -192,7 +191,7 @@ static int
 run_stream(void *data) {
     struct stream *stream = data;
 
-    AVCodec *codec = avcodec_find_decoder(AV_CODEC_ID_H264);
+    const AVCodec *codec = avcodec_find_decoder(AV_CODEC_ID_H264);
     if (!codec) {
         LOGE("H.264 decoder not found");
         goto end;

app/src/stream.h

@@ -5,6 +5,7 @@
 
 #include <stdbool.h>
 #include <stdint.h>
+#include <libavcodec/avcodec.h>
 #include <libavformat/avformat.h>
 
 #include "trait/packet_sink.h"

app/src/sys/unix/process.c

@@ -119,6 +119,13 @@ sc_process_execute_p(const char *const argv[], sc_pid *pid, unsigned flags,
 
         close(internal[0]);
         enum sc_process_result err;
+
+        // Somehow SDL masks many signals - undo them for other processes
+        // https://github.com/libsdl-org/SDL/blob/release-2.0.18/src/thread/pthread/SDL_systhread.c#L167
+        sigset_t mask;
+        sigemptyset(&mask);
+        sigprocmask(SIG_SETMASK, &mask, NULL);
+
         if (fcntl(internal[1], F_SETFD, FD_CLOEXEC) == 0) {
             execvp(argv[0], (char *const *) argv);
             perror("exec");

app/src/trait/key_processor.h

@@ -6,7 +6,7 @@
 #include <assert.h>
 #include <stdbool.h>
 
-#include <SDL2/SDL_events.h>
+#include "input_events.h"
 
 /**
  * Key processor trait.
@@ -29,20 +29,27 @@ struct sc_key_processor {
 struct sc_key_processor_ops {
 
     /**
-     * Process the keyboard event
+     * Process a keyboard event
      *
      * The `sequence` number (if different from `SC_SEQUENCE_INVALID`) indicates
      * the acknowledgement number to wait for before injecting this event.
      * This allows to ensure that the device clipboard is set before injecting
      * Ctrl+v on the device.
+     *
+     * This function is mandatory.
      */
     void
-    (*process_key)(struct sc_key_processor *kp, const SDL_KeyboardEvent *event,
-                   uint64_t ack_to_wait);
+    (*process_key)(struct sc_key_processor *kp,
+                   const struct sc_key_event *event, uint64_t ack_to_wait);
 
+    /**
+     * Process an input text
+     *
+     * This function is optional.
+     */
     void
     (*process_text)(struct sc_key_processor *kp,
-                    const SDL_TextInputEvent *event);
+                    const struct sc_text_event *event);
 };
 
 #endif

app/src/trait/mouse_processor.h

@@ -6,7 +6,7 @@
 #include <assert.h>
 #include <stdbool.h>
 
-#include <SDL2/SDL_events.h>
+#include "input_events.h"
 
 /**
  * Mouse processor trait.
@@ -16,24 +16,51 @@
  */
 struct sc_mouse_processor {
     const struct sc_mouse_processor_ops *ops;
+
+    /**
+     * If set, the mouse processor works in relative mode (the absolute
+     * position is irrelevant). In particular, it indicates that the mouse
+     * pointer must be "captured" by the UI.
+     */
+    bool relative_mode;
 };
 
 struct sc_mouse_processor_ops {
+    /**
+     * Process a mouse motion event
+     *
+     * This function is mandatory.
+     */
     void
     (*process_mouse_motion)(struct sc_mouse_processor *mp,
-                            const SDL_MouseMotionEvent *event);
+                            const struct sc_mouse_motion_event *event);
 
+    /**
+     * Process a mouse click event
+     *
+     * This function is mandatory.
+     */
+    void
+    (*process_mouse_click)(struct sc_mouse_processor *mp,
+                           const struct sc_mouse_click_event *event);
+
+    /**
+     * Process a mouse scroll event
+     *
+     * This function is optional.
+     */
+    void
+    (*process_mouse_scroll)(struct sc_mouse_processor *mp,
+                            const struct sc_mouse_scroll_event *event);
+
+    /**
+     * Process a touch event
+     *
+     * This function is optional.
+     */
     void
     (*process_touch)(struct sc_mouse_processor *mp,
-                     const SDL_TouchFingerEvent *event);
-
-    void
-    (*process_mouse_button)(struct sc_mouse_processor *mp,
-                            const SDL_MouseButtonEvent *event);
-
-    void
-    (*process_mouse_wheel)(struct sc_mouse_processor *mp,
-                           const SDL_MouseWheelEvent *event);
+                     const struct sc_touch_event *event);
 };
 
 #endif

app/src/util/net.c

@@ -83,6 +83,7 @@ unwrap(sc_socket socket) {
 #endif
 }
 
+#ifndef HAVE_SOCK_CLOEXEC // avoid unused-function warning
 static inline bool
 sc_raw_socket_close(sc_raw_socket raw_sock) {
 #ifndef _WIN32
@@ -91,6 +92,7 @@ sc_raw_socket_close(sc_raw_socket raw_sock) {
     return !closesocket(raw_sock);
 #endif
 }
+#endif
 
 #ifndef HAVE_SOCK_CLOEXEC
 // If SOCK_CLOEXEC does not exist, the flag must be set manually once the

app/src/util/str.c

@@ -240,7 +240,7 @@ sc_str_wrap_lines(const char *input, unsigned columns, unsigned indent) {
 
     APPEND_INDENT();
 
-    // The last separator encountered, it must be inserted only conditionnaly,
+    // The last separator encountered, it must be inserted only conditionally,
     // depending on the next token
     char pending = 0;
 

app/src/v4l2_sink.h

@@ -3,13 +3,14 @@
 
 #include "common.h"
 
+#include <libavcodec/avcodec.h>
+#include <libavformat/avformat.h>
+
 #include "coords.h"
 #include "trait/frame_sink.h"
 #include "video_buffer.h"
 #include "util/tick.h"
 
-#include <libavformat/avformat.h>
-
 struct sc_v4l2_sink {
     struct sc_frame_sink frame_sink; // frame sink trait
 

app/tests/test_adb_parser.c

@@ -11,6 +11,7 @@ static void test_get_ip_single_line() {
     char *ip = sc_adb_parse_device_ip_from_output(ip_route, sizeof(ip_route));
     assert(ip);
     assert(!strcmp(ip, "192.168.12.34"));
+    free(ip);
 }
 
 static void test_get_ip_single_line_without_eol() {
@@ -20,6 +21,7 @@ static void test_get_ip_single_line_without_eol() {
     char *ip = sc_adb_parse_device_ip_from_output(ip_route, sizeof(ip_route));
     assert(ip);
     assert(!strcmp(ip, "192.168.12.34"));
+    free(ip);
 }
 
 static void test_get_ip_single_line_with_trailing_space() {
@@ -29,6 +31,7 @@ static void test_get_ip_single_line_with_trailing_space() {
     char *ip = sc_adb_parse_device_ip_from_output(ip_route, sizeof(ip_route));
     assert(ip);
     assert(!strcmp(ip, "192.168.12.34"));
+    free(ip);
 }
 
 static void test_get_ip_multiline_first_ok() {
@@ -40,6 +43,7 @@ static void test_get_ip_multiline_first_ok() {
     char *ip = sc_adb_parse_device_ip_from_output(ip_route, sizeof(ip_route));
     assert(ip);
     assert(!strcmp(ip, "192.168.1.2"));
+    free(ip);
 }
 
 static void test_get_ip_multiline_second_ok() {
@@ -51,6 +55,7 @@ static void test_get_ip_multiline_second_ok() {
     char *ip = sc_adb_parse_device_ip_from_output(ip_route, sizeof(ip_route));
     assert(ip);
     assert(!strcmp(ip, "192.168.1.3"));
+    free(ip);
 }
 
 static void test_get_ip_no_wlan() {

app/tests/test_cli.c

@@ -129,25 +129,26 @@ static void test_parse_shortcut_mods(void) {
     ok = sc_parse_shortcut_mods("lctrl", &mods);
     assert(ok);
     assert(mods.count == 1);
-    assert(mods.data[0] == SC_MOD_LCTRL);
+    assert(mods.data[0] == SC_SHORTCUT_MOD_LCTRL);
 
     ok = sc_parse_shortcut_mods("lctrl+lalt", &mods);
     assert(ok);
     assert(mods.count == 1);
-    assert(mods.data[0] == (SC_MOD_LCTRL | SC_MOD_LALT));
+    assert(mods.data[0] == (SC_SHORTCUT_MOD_LCTRL | SC_SHORTCUT_MOD_LALT));
 
     ok = sc_parse_shortcut_mods("rctrl,lalt", &mods);
     assert(ok);
     assert(mods.count == 2);
-    assert(mods.data[0] == SC_MOD_RCTRL);
-    assert(mods.data[1] == SC_MOD_LALT);
+    assert(mods.data[0] == SC_SHORTCUT_MOD_RCTRL);
+    assert(mods.data[1] == SC_SHORTCUT_MOD_LALT);
 
     ok = sc_parse_shortcut_mods("lsuper,rsuper+lalt,lctrl+rctrl+ralt", &mods);
     assert(ok);
     assert(mods.count == 3);
-    assert(mods.data[0] == SC_MOD_LSUPER);
-    assert(mods.data[1] == (SC_MOD_RSUPER | SC_MOD_LALT));
-    assert(mods.data[2] == (SC_MOD_LCTRL | SC_MOD_RCTRL | SC_MOD_RALT));
+    assert(mods.data[0] == SC_SHORTCUT_MOD_LSUPER);
+    assert(mods.data[1] == (SC_SHORTCUT_MOD_RSUPER | SC_SHORTCUT_MOD_LALT));
+    assert(mods.data[2] == (SC_SHORTCUT_MOD_LCTRL | SC_SHORTCUT_MOD_RCTRL |
+                            SC_SHORTCUT_MOD_RALT));
 
     ok = sc_parse_shortcut_mods("", &mods);
     assert(!ok);

app/tests/test_control_msg_serialize.c

@@ -6,7 +6,7 @@
 #include "control_msg.h"
 
 static void test_serialize_inject_keycode(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_INJECT_KEYCODE,
         .inject_keycode = {
             .action = AKEY_EVENT_ACTION_UP,
@@ -17,7 +17,7 @@ static void test_serialize_inject_keycode(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 14);
 
     const unsigned char expected[] = {
@@ -31,7 +31,7 @@ static void test_serialize_inject_keycode(void) {
 }
 
 static void test_serialize_inject_text(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_INJECT_TEXT,
         .inject_text = {
             .text = "hello, world!",
@@ -39,7 +39,7 @@ static void test_serialize_inject_text(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 18);
 
     const unsigned char expected[] = {
@@ -51,7 +51,7 @@ static void test_serialize_inject_text(void) {
 }
 
 static void test_serialize_inject_text_long(void) {
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_INJECT_TEXT;
     char text[CONTROL_MSG_INJECT_TEXT_MAX_LENGTH + 1];
     memset(text, 'a', CONTROL_MSG_INJECT_TEXT_MAX_LENGTH);
@@ -59,7 +59,7 @@ static void test_serialize_inject_text_long(void) {
     msg.inject_text.text = text;
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 5 + CONTROL_MSG_INJECT_TEXT_MAX_LENGTH);
 
     unsigned char expected[5 + CONTROL_MSG_INJECT_TEXT_MAX_LENGTH];
@@ -74,7 +74,7 @@ static void test_serialize_inject_text_long(void) {
 }
 
 static void test_serialize_inject_touch_event(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT,
         .inject_touch_event = {
             .action = AMOTION_EVENT_ACTION_DOWN,
@@ -95,7 +95,7 @@ static void test_serialize_inject_touch_event(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 28);
 
     const unsigned char expected[] = {
@@ -111,7 +111,7 @@ static void test_serialize_inject_touch_event(void) {
 }
 
 static void test_serialize_inject_scroll_event(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT,
         .inject_scroll_event = {
             .position = {
@@ -126,12 +126,13 @@ static void test_serialize_inject_scroll_event(void) {
             },
             .hscroll = 1,
             .vscroll = -1,
+            .buttons = 1,
         },
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
-    assert(size == 21);
+    size_t size = sc_control_msg_serialize(&msg, buf);
+    assert(size == 25);
 
     const unsigned char expected[] = {
         CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT,
@@ -139,12 +140,13 @@ static void test_serialize_inject_scroll_event(void) {
         0x04, 0x38, 0x07, 0x80, // 1080 1920
         0x00, 0x00, 0x00, 0x01, // 1
         0xFF, 0xFF, 0xFF, 0xFF, // -1
+        0x00, 0x00, 0x00, 0x01, // 1
     };
     assert(!memcmp(buf, expected, sizeof(expected)));
 }
 
 static void test_serialize_back_or_screen_on(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON,
         .back_or_screen_on = {
             .action = AKEY_EVENT_ACTION_UP,
@@ -152,7 +154,7 @@ static void test_serialize_back_or_screen_on(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 2);
 
     const unsigned char expected[] = {
@@ -163,12 +165,12 @@ static void test_serialize_back_or_screen_on(void) {
 }
 
 static void test_serialize_expand_notification_panel(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_EXPAND_NOTIFICATION_PANEL,
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {
@@ -178,12 +180,12 @@ static void test_serialize_expand_notification_panel(void) {
 }
 
 static void test_serialize_expand_settings_panel(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_EXPAND_SETTINGS_PANEL,
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {
@@ -193,12 +195,12 @@ static void test_serialize_expand_settings_panel(void) {
 }
 
 static void test_serialize_collapse_panels(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_COLLAPSE_PANELS,
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {
@@ -208,7 +210,7 @@ static void test_serialize_collapse_panels(void) {
 }
 
 static void test_serialize_get_clipboard(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_GET_CLIPBOARD,
         .get_clipboard = {
             .copy_key = GET_CLIPBOARD_COPY_KEY_COPY,
@@ -216,7 +218,7 @@ static void test_serialize_get_clipboard(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 2);
 
     const unsigned char expected[] = {
@@ -227,7 +229,7 @@ static void test_serialize_get_clipboard(void) {
 }
 
 static void test_serialize_set_clipboard(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_SET_CLIPBOARD,
         .set_clipboard = {
             .sequence = UINT64_C(0x0102030405060708),
@@ -237,7 +239,7 @@ static void test_serialize_set_clipboard(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 27);
 
     const unsigned char expected[] = {
@@ -251,7 +253,7 @@ static void test_serialize_set_clipboard(void) {
 }
 
 static void test_serialize_set_clipboard_long(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_SET_CLIPBOARD,
         .set_clipboard = {
             .sequence = UINT64_C(0x0102030405060708),
@@ -266,7 +268,7 @@ static void test_serialize_set_clipboard_long(void) {
     msg.set_clipboard.text = text;
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == CONTROL_MSG_MAX_SIZE);
 
     unsigned char expected[CONTROL_MSG_MAX_SIZE] = {
@@ -285,7 +287,7 @@ static void test_serialize_set_clipboard_long(void) {
 }
 
 static void test_serialize_set_screen_power_mode(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE,
         .set_screen_power_mode = {
             .mode = SCREEN_POWER_MODE_NORMAL,
@@ -293,7 +295,7 @@ static void test_serialize_set_screen_power_mode(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 2);
 
     const unsigned char expected[] = {
@@ -304,12 +306,12 @@ static void test_serialize_set_screen_power_mode(void) {
 }
 
 static void test_serialize_rotate_device(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_ROTATE_DEVICE,
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {

bump_version

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+#
+# This script bump scrcpy version by editing all the necessary files.
+#
+# Usage:
+#
+#     ./bump_version 1.23.4
+#
+# Then check the diff manually to confirm that everything is ok.
+
+set -e
+
+if [[ $# != 1 ]]
+then
+    echo "Syntax: $0 <version>" >&2
+    exit 1
+fi
+
+VERSION="$1"
+
+a=( ${VERSION//./ } )
+MAJOR="${a[0]:-0}"
+MINOR="${a[1]:-0}"
+PATCH="${a[2]:-0}"
+
+# If VERSION is 1.23.4, then VERSION_CODE is 12304
+VERSION_CODE="$(( $MAJOR * 10000 + $MINOR * 100 + "$PATCH" ))"
+
+echo "$VERSION: major=$MAJOR minor=$MINOR patch=$PATCH [versionCode=$VERSION_CODE]"
+sed -i "s/^\(\s*version: \)'[^']*'/\1'$VERSION'/" meson.build
+sed -i "s/^\(\s*versionCode \).*/\1$VERSION_CODE/;s/^\(\s*versionName \).*/\1\"$VERSION\"/" server/build.gradle
+sed -i "s/^\(SCRCPY_VERSION_NAME=\).*/\1$VERSION/" server/build_without_gradle.sh
+sed -i "s/^\(\s*VALUE \"ProductVersion\", \)\"[^\"]*\"/\1\"$VERSION\"/" app/scrcpy-windows.rc
+echo done

cross_win32.txt

@@ -7,6 +7,7 @@ cpp = 'i686-w64-mingw32-g++'
 ar = 'i686-w64-mingw32-ar'
 strip = 'i686-w64-mingw32-strip'
 pkgconfig = 'i686-w64-mingw32-pkg-config'
+windres = 'i686-w64-mingw32-windres'
 
 [host_machine]
 system = 'windows'
@@ -15,6 +16,8 @@ cpu = 'i686'
 endian = 'little'
 
 [properties]
-prebuilt_ffmpeg_shared = 'ffmpeg-4.3.1-win32-shared'
-prebuilt_ffmpeg_dev = 'ffmpeg-4.3.1-win32-dev'
-prebuilt_sdl2 = 'SDL2-2.0.16/i686-w64-mingw32'
+ffmpeg_avcodec = 'avcodec-58'
+ffmpeg_avformat = 'avformat-58'
+ffmpeg_avutil = 'avutil-56'
+prebuilt_ffmpeg = 'ffmpeg-4.3.1-win32-shared'
+prebuilt_sdl2 = 'SDL2-2.0.18/i686-w64-mingw32'

cross_win64.txt

@@ -7,6 +7,7 @@ cpp = 'x86_64-w64-mingw32-g++'
 ar = 'x86_64-w64-mingw32-ar'
 strip = 'x86_64-w64-mingw32-strip'
 pkgconfig = 'x86_64-w64-mingw32-pkg-config'
+windres = 'x86_64-w64-mingw32-windres'
 
 [host_machine]
 system = 'windows'
@@ -15,6 +16,8 @@ cpu = 'x86_64'
 endian = 'little'
 
 [properties]
-prebuilt_ffmpeg_shared = 'ffmpeg-4.3.1-win64-shared'
-prebuilt_ffmpeg_dev = 'ffmpeg-4.3.1-win64-dev'
-prebuilt_sdl2 = 'SDL2-2.0.16/x86_64-w64-mingw32'
+ffmpeg_avcodec = 'avcodec-59'
+ffmpeg_avformat = 'avformat-59'
+ffmpeg_avutil = 'avutil-57'
+prebuilt_ffmpeg = 'ffmpeg-5.0-full_build-shared'
+prebuilt_sdl2 = 'SDL2-2.0.18/x86_64-w64-mingw32'

meson_options.txt

@@ -1,6 +1,5 @@
 option('compile_app', type: 'boolean', value: true, description: 'Build the client')
 option('compile_server', type: 'boolean', value: true, description: 'Build the server')
-option('crossbuild_windows', type: 'boolean', value: false, description: 'Build for Windows from Linux')
 option('prebuilt_server', type: 'string', description: 'Path of the prebuilt server')
 option('portable', type: 'boolean', value: false, description: 'Use scrcpy-server from the same directory as the scrcpy executable')
 option('server_debugger', type: 'boolean', value: false, description: 'Run a server debugger and wait for a client to be attached')

prebuilt-deps/Makefile

@@ -1,38 +1,31 @@
 .PHONY: prepare-win32 prepare-win64 \
-	prepare-ffmpeg-shared-win32 \
-	prepare-ffmpeg-dev-win32 \
-	prepare-ffmpeg-shared-win64 \
-	prepare-ffmpeg-dev-win64 \
+	prepare-ffmpeg-win32 \
+	prepare-ffmpeg-win64 \
 	prepare-sdl2 \
 	prepare-adb
 
-prepare-win32: prepare-sdl2 prepare-ffmpeg-shared-win32 prepare-ffmpeg-dev-win32 prepare-adb
-prepare-win64: prepare-sdl2 prepare-ffmpeg-shared-win64 prepare-ffmpeg-dev-win64 prepare-adb
+prepare-win32: prepare-sdl2 prepare-ffmpeg-win32 prepare-adb
+prepare-win64: prepare-sdl2 prepare-ffmpeg-win64 prepare-adb
 
-prepare-ffmpeg-shared-win32:
+# Use old FFmpeg version for win32, there are no new prebuilts
+prepare-ffmpeg-win32:
 	@./prepare-dep https://github.com/Genymobile/scrcpy/releases/download/v1.16/ffmpeg-4.3.1-win32-shared.zip \
 		357af9901a456f4dcbacd107e83a934d344c9cb07ddad8aaf80612eeab7d26d2 \
 		ffmpeg-4.3.1-win32-shared
-
-prepare-ffmpeg-dev-win32:
 	@./prepare-dep https://github.com/Genymobile/scrcpy/releases/download/v1.16/ffmpeg-4.3.1-win32-dev.zip \
 		230efb08e9bcf225bd474da29676c70e591fc94d8790a740ca801408fddcb78b \
 		ffmpeg-4.3.1-win32-dev
+	ln -sf ../ffmpeg-4.3.1-win32-dev/include ffmpeg-4.3.1-win32-shared/
 
-prepare-ffmpeg-shared-win64:
-	@./prepare-dep https://github.com/Genymobile/scrcpy/releases/download/v1.16/ffmpeg-4.3.1-win64-shared.zip \
-		dd29b7f92f48dead4dd940492c7509138c0f99db445076d0a597007298a79940 \
-		ffmpeg-4.3.1-win64-shared
-
-prepare-ffmpeg-dev-win64:
-	@./prepare-dep https://github.com/Genymobile/scrcpy/releases/download/v1.16/ffmpeg-4.3.1-win64-dev.zip \
-		2e8038242cf8e1bd095c2978f196ff0462b122cc6ef7e74626a6af15459d8b81 \
-		ffmpeg-4.3.1-win64-dev
+prepare-ffmpeg-win64:
+	@./prepare-dep https://github.com/GyanD/codexffmpeg/releases/download/5.0/ffmpeg-5.0-full_build-shared.7z \
+		e5900f6cecd4c438d398bd2fc308736c10b857cd8dd61c11bcfb05bff5d1211a \
+		ffmpeg-5.0-full_build-shared
 
 prepare-sdl2:
-	@./prepare-dep https://libsdl.org/release/SDL2-devel-2.0.16-mingw.tar.gz \
-		2bfe48628aa9635c12eac7d421907e291525de1d0b04b3bca4a5bd6e6c881a6f \
-		SDL2-2.0.16
+	@./prepare-dep https://libsdl.org/release/SDL2-devel-2.0.18-mingw.tar.gz \
+		bbad7c6947f6ca3e05292f065852ed8b62f319fc5533047e7708769c4dbae394 \
+		SDL2-2.0.18
 
 prepare-adb:
 	@./prepare-dep https://dl.google.com/android/repository/platform-tools_r31.0.3-windows.zip \

prebuilt-deps/prepare-dep

@@ -34,6 +34,9 @@ extract() {
     elif [[ "$file" == *.tar.gz ]]
     then
         tar xf "$file"
+    elif [[ "$file" == *.7z ]]
+    then
+        7z x "$file"
     else
         echo "Unsupported file: $file"
         return 1

release.mk

@@ -70,7 +70,6 @@ build-win32: prepare-deps-win32
 		meson "$(WIN32_BUILD_DIR)" \
 			--cross-file cross_win32.txt \
 			--buildtype release --strip -Db_lto=true \
-			-Dcrossbuild_windows=true \
 			-Dcompile_server=false \
 			-Dportable=true )
 	ninja -C "$(WIN32_BUILD_DIR)"
@@ -83,7 +82,6 @@ build-win64: prepare-deps-win64
 		meson "$(WIN64_BUILD_DIR)" \
 			--cross-file cross_win64.txt \
 			--buildtype release --strip -Db_lto=true \
-			-Dcrossbuild_windows=true \
 			-Dcompile_server=false \
 			-Dportable=true )
 	ninja -C "$(WIN64_BUILD_DIR)"
@@ -103,7 +101,7 @@ dist-win32: build-server build-win32
 	cp prebuilt-deps/platform-tools/adb.exe "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinApi.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinUsbApi.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/SDL2-2.0.16/i686-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp prebuilt-deps/SDL2-2.0.18/i686-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 
 dist-win64: build-server build-win64
 	mkdir -p "$(DIST)/$(WIN64_TARGET_DIR)"
@@ -112,15 +110,15 @@ dist-win64: build-server build-win64
 	cp data/scrcpy-console.bat "$(DIST)/$(WIN64_TARGET_DIR)"
 	cp data/scrcpy-noconsole.vbs "$(DIST)/$(WIN64_TARGET_DIR)"
 	cp data/icon.png "$(DIST)/$(WIN64_TARGET_DIR)"
-	cp prebuilt-deps/ffmpeg-4.3.1-win64-shared/bin/avutil-56.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.3.1-win64-shared/bin/avcodec-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.3.1-win64-shared/bin/avformat-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.3.1-win64-shared/bin/swresample-3.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.3.1-win64-shared/bin/swscale-5.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-5.0-full_build-shared/bin/avutil-57.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-5.0-full_build-shared/bin/avcodec-59.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-5.0-full_build-shared/bin/avformat-59.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-5.0-full_build-shared/bin/swresample-4.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-5.0-full_build-shared/bin/swscale-6.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/adb.exe "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinApi.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinUsbApi.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/SDL2-2.0.16/x86_64-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/SDL2-2.0.18/x86_64-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 
 zip-win32: dist-win32
 	cd "$(DIST)/$(WIN32_TARGET_DIR)"; \

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

@@ -71,12 +71,13 @@ public final class ControlMessage {
         return msg;
     }
 
-    public static ControlMessage createInjectScrollEvent(Position position, int hScroll, int vScroll) {
+    public static ControlMessage createInjectScrollEvent(Position position, int hScroll, int vScroll, int buttons) {
         ControlMessage msg = new ControlMessage();
         msg.type = TYPE_INJECT_SCROLL_EVENT;
         msg.position = position;
         msg.hScroll = hScroll;
         msg.vScroll = vScroll;
+        msg.buttons = buttons;
         return msg;
     }
 

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

@@ -10,7 +10,7 @@ public class ControlMessageReader {
 
     static final int INJECT_KEYCODE_PAYLOAD_LENGTH = 13;
     static final int INJECT_TOUCH_EVENT_PAYLOAD_LENGTH = 27;
-    static final int INJECT_SCROLL_EVENT_PAYLOAD_LENGTH = 20;
+    static final int INJECT_SCROLL_EVENT_PAYLOAD_LENGTH = 24;
     static final int BACK_OR_SCREEN_ON_LENGTH = 1;
     static final int SET_SCREEN_POWER_MODE_PAYLOAD_LENGTH = 1;
     static final int GET_CLIPBOARD_LENGTH = 1;
@@ -154,7 +154,8 @@ public class ControlMessageReader {
         Position position = readPosition(buffer);
         int hScroll = buffer.getInt();
         int vScroll = buffer.getInt();
-        return ControlMessage.createInjectScrollEvent(position, hScroll, vScroll);
+        int buttons = buffer.getInt();
+        return ControlMessage.createInjectScrollEvent(position, hScroll, vScroll, buttons);
     }
 
     private ControlMessage parseBackOrScreenOnEvent() {

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

@@ -98,7 +98,7 @@ public class Controller {
                 break;
             case ControlMessage.TYPE_INJECT_SCROLL_EVENT:
                 if (device.supportsInputEvents()) {
-                    injectScroll(msg.getPosition(), msg.getHScroll(), msg.getVScroll());
+                    injectScroll(msg.getPosition(), msg.getHScroll(), msg.getVScroll(), msg.getButtons());
                 }
                 break;
             case ControlMessage.TYPE_BACK_OR_SCREEN_ON:
@@ -221,7 +221,7 @@ public class Controller {
         return device.injectEvent(event, Device.INJECT_MODE_ASYNC);
     }
 
-    private boolean injectScroll(Position position, int hScroll, int vScroll) {
+    private boolean injectScroll(Position position, int hScroll, int vScroll, int buttons) {
         long now = SystemClock.uptimeMillis();
         Point point = device.getPhysicalPoint(position);
         if (point == null) {
@@ -239,7 +239,7 @@ public class Controller {
         coords.setAxisValue(MotionEvent.AXIS_VSCROLL, vScroll);
 
         MotionEvent event = MotionEvent
-                .obtain(lastTouchDown, now, MotionEvent.ACTION_SCROLL, 1, pointerProperties, pointerCoords, 0, 0, 1f, 1f, DEFAULT_DEVICE_ID, 0,
+                .obtain(lastTouchDown, now, MotionEvent.ACTION_SCROLL, 1, pointerProperties, pointerCoords, 0, buttons, 1f, 1f, DEFAULT_DEVICE_ID, 0,
                         InputDevice.SOURCE_MOUSE, 0);
         return device.injectEvent(event, Device.INJECT_MODE_ASYNC);
     }

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

@@ -46,15 +46,17 @@ public final class DesktopConnection implements Closeable {
         return localSocket;
     }
 
-    public static DesktopConnection open(Device device, boolean tunnelForward, boolean control) throws IOException {
+    public static DesktopConnection open(boolean tunnelForward, boolean control, boolean sendDummyByte) throws IOException {
         LocalSocket videoSocket;
         LocalSocket controlSocket = null;
         if (tunnelForward) {
             LocalServerSocket localServerSocket = new LocalServerSocket(SOCKET_NAME);
             try {
                 videoSocket = localServerSocket.accept();
-                // send one byte so the client may read() to detect a connection error
-                videoSocket.getOutputStream().write(0);
+                if (sendDummyByte) {
+                    // send one byte so the client may read() to detect a connection error
+                    videoSocket.getOutputStream().write(0);
+                }
                 if (control) {
                     try {
                         controlSocket = localServerSocket.accept();
@@ -78,10 +80,7 @@ public final class DesktopConnection implements Closeable {
             }
         }
 
-        DesktopConnection connection = new DesktopConnection(videoSocket, controlSocket);
-        Size videoSize = device.getScreenInfo().getVideoSize();
-        connection.send(Device.getDeviceName(), videoSize.getWidth(), videoSize.getHeight());
-        return connection;
+        return new DesktopConnection(videoSocket, controlSocket);
     }
 
     public void close() throws IOException {
@@ -95,7 +94,7 @@ public final class DesktopConnection implements Closeable {
         }
     }
 
-    private void send(String deviceName, int width, int height) throws IOException {
+    public void sendDeviceMeta(String deviceName, int width, int height) throws IOException {
         byte[] buffer = new byte[DEVICE_NAME_FIELD_LENGTH + 4];
 
         byte[] deviceNameBytes = deviceName.getBytes(StandardCharsets.UTF_8);

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

@@ -42,6 +42,11 @@ public final class Device {
         void onClipboardTextChanged(String text);
     }
 
+    private final Size deviceSize;
+    private final Rect crop;
+    private int maxSize;
+    private final int lockVideoOrientation;
+
     private ScreenInfo screenInfo;
     private RotationListener rotationListener;
     private ClipboardListener clipboardListener;
@@ -69,7 +74,12 @@ public final class Device {
 
         int displayInfoFlags = displayInfo.getFlags();
 
-        screenInfo = ScreenInfo.computeScreenInfo(displayInfo, options.getCrop(), options.getMaxSize(), options.getLockVideoOrientation());
+        deviceSize = displayInfo.getSize();
+        crop = options.getCrop();
+        maxSize = options.getMaxSize();
+        lockVideoOrientation = options.getLockVideoOrientation();
+
+        screenInfo = ScreenInfo.computeScreenInfo(displayInfo.getRotation(), deviceSize, crop, maxSize, lockVideoOrientation);
         layerStack = displayInfo.getLayerStack();
 
         SERVICE_MANAGER.getWindowManager().registerRotationWatcher(new IRotationWatcher.Stub() {
@@ -123,6 +133,11 @@ public final class Device {
         }
     }
 
+    public synchronized void setMaxSize(int newMaxSize) {
+        maxSize = newMaxSize;
+        screenInfo = ScreenInfo.computeScreenInfo(screenInfo.getReverseVideoRotation(), deviceSize, crop, newMaxSize, lockVideoOrientation);
+    }
+
     public synchronized ScreenInfo getScreenInfo() {
         return screenInfo;
     }

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

@@ -12,7 +12,6 @@ public class Options {
     private int lockVideoOrientation = -1;
     private boolean tunnelForward;
     private Rect crop;
-    private boolean sendFrameMeta = true; // send PTS so that the client may record properly
     private boolean control = true;
     private int displayId;
     private boolean showTouches;
@@ -21,6 +20,12 @@ public class Options {
     private String encoderName;
     private boolean powerOffScreenOnClose;
     private boolean clipboardAutosync = true;
+    private boolean downsizeOnError = true;
+
+    // Options not used by the scrcpy client, but useful to use scrcpy-server directly
+    private boolean sendDeviceMeta = true; // send device name and size
+    private boolean sendFrameMeta = true; // send PTS so that the client may record properly
+    private boolean sendDummyByte = true; // write a byte on start to detect connection issues
 
     public Ln.Level getLogLevel() {
         return logLevel;
@@ -78,14 +83,6 @@ public class Options {
         this.crop = crop;
     }
 
-    public boolean getSendFrameMeta() {
-        return sendFrameMeta;
-    }
-
-    public void setSendFrameMeta(boolean sendFrameMeta) {
-        this.sendFrameMeta = sendFrameMeta;
-    }
-
     public boolean getControl() {
         return control;
     }
@@ -149,4 +146,36 @@ public class Options {
     public void setClipboardAutosync(boolean clipboardAutosync) {
         this.clipboardAutosync = clipboardAutosync;
     }
+
+    public boolean getDownsizeOnError() {
+        return downsizeOnError;
+    }
+
+    public void setDownsizeOnError(boolean downsizeOnError) {
+        this.downsizeOnError = downsizeOnError;
+    }
+
+    public boolean getSendDeviceMeta() {
+        return sendDeviceMeta;
+    }
+
+    public void setSendDeviceMeta(boolean sendDeviceMeta) {
+        this.sendDeviceMeta = sendDeviceMeta;
+    }
+
+    public boolean getSendFrameMeta() {
+        return sendFrameMeta;
+    }
+
+    public void setSendFrameMeta(boolean sendFrameMeta) {
+        this.sendFrameMeta = sendFrameMeta;
+    }
+
+    public boolean getSendDummyByte() {
+        return sendDummyByte;
+    }
+
+    public void setSendDummyByte(boolean sendDummyByte) {
+        this.sendDummyByte = sendDummyByte;
+    }
 }

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

@@ -25,24 +25,32 @@ public class ScreenEncoder implements Device.RotationListener {
     private static final int REPEAT_FRAME_DELAY_US = 100_000; // repeat after 100ms
     private static final String KEY_MAX_FPS_TO_ENCODER = "max-fps-to-encoder";
 
+    // Keep the values in descending order
+    private static final int[] MAX_SIZE_FALLBACK = {2560, 1920, 1600, 1280, 1024, 800};
+
     private static final int NO_PTS = -1;
 
     private final AtomicBoolean rotationChanged = new AtomicBoolean();
     private final ByteBuffer headerBuffer = ByteBuffer.allocate(12);
 
-    private String encoderName;
-    private List<CodecOption> codecOptions;
-    private int bitRate;
-    private int maxFps;
-    private boolean sendFrameMeta;
+    private final String encoderName;
+    private final List<CodecOption> codecOptions;
+    private final int bitRate;
+    private final int maxFps;
+    private final boolean sendFrameMeta;
+    private final boolean downsizeOnError;
     private long ptsOrigin;
 
-    public ScreenEncoder(boolean sendFrameMeta, int bitRate, int maxFps, List<CodecOption> codecOptions, String encoderName) {
+    private boolean firstFrameSent;
+
+    public ScreenEncoder(boolean sendFrameMeta, int bitRate, int maxFps, List<CodecOption> codecOptions, String encoderName,
+            boolean downsizeOnError) {
         this.sendFrameMeta = sendFrameMeta;
         this.bitRate = bitRate;
         this.maxFps = maxFps;
         this.codecOptions = codecOptions;
         this.encoderName = encoderName;
+        this.downsizeOnError = downsizeOnError;
     }
 
     @Override
@@ -91,6 +99,23 @@ public class ScreenEncoder implements Device.RotationListener {
                     alive = encode(codec, fd);
                     // do not call stop() on exception, it would trigger an IllegalStateException
                     codec.stop();
+                } catch (IllegalStateException e) {
+                    Ln.e("Encoding error: " + e.getClass().getName() + ": " + e.getMessage());
+                    if (!downsizeOnError || firstFrameSent) {
+                        // Fail immediately
+                        throw e;
+                    }
+
+                    int newMaxSize = chooseMaxSizeFallback(screenInfo.getVideoSize());
+                    if (newMaxSize == 0) {
+                        // Definitively fail
+                        throw e;
+                    }
+
+                    // Retry with a smaller device size
+                    Ln.i("Retrying with -m" + newMaxSize + "...");
+                    device.setMaxSize(newMaxSize);
+                    alive = true;
                 } finally {
                     destroyDisplay(display);
                     codec.release();
@@ -102,6 +127,18 @@ public class ScreenEncoder implements Device.RotationListener {
         }
     }
 
+    private static int chooseMaxSizeFallback(Size failedSize) {
+        int currentMaxSize = Math.max(failedSize.getWidth(), failedSize.getHeight());
+        for (int value : MAX_SIZE_FALLBACK) {
+            if (value < currentMaxSize) {
+                // We found a smaller value to reduce the video size
+                return value;
+            }
+        }
+        // No fallback, fail definitively
+        return 0;
+    }
+
     private boolean encode(MediaCodec codec, FileDescriptor fd) throws IOException {
         boolean eof = false;
         MediaCodec.BufferInfo bufferInfo = new MediaCodec.BufferInfo();
@@ -122,6 +159,10 @@ public class ScreenEncoder implements Device.RotationListener {
                     }
 
                     IO.writeFully(fd, codecBuffer);
+                    if ((bufferInfo.flags & MediaCodec.BUFFER_FLAG_CODEC_CONFIG) == 0) {
+                        // If this is not a config packet, then it contains a frame
+                        firstFrameSent = true;
+                    }
                 }
             } finally {
                 if (outputBufferId >= 0) {

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

@@ -80,15 +80,12 @@ public final class ScreenInfo {
         return new ScreenInfo(newContentRect, newUnlockedVideoSize, newDeviceRotation, lockedVideoOrientation);
     }
 
-    public static ScreenInfo computeScreenInfo(DisplayInfo displayInfo, Rect crop, int maxSize, int lockedVideoOrientation) {
-        int rotation = displayInfo.getRotation();
-
+    public static ScreenInfo computeScreenInfo(int rotation, Size deviceSize, Rect crop, int maxSize, int lockedVideoOrientation) {
         if (lockedVideoOrientation == Device.LOCK_VIDEO_ORIENTATION_INITIAL) {
             // The user requested to lock the video orientation to the current orientation
             lockedVideoOrientation = rotation;
         }
 
-        Size deviceSize = displayInfo.getSize();
         Rect contentRect = new Rect(0, 0, deviceSize.getWidth(), deviceSize.getHeight());
         if (crop != null) {
             if (rotation % 2 != 0) { // 180s preserve dimensions

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

@@ -1,7 +1,6 @@
 package com.genymobile.scrcpy;
 
 import android.graphics.Rect;
-import android.media.MediaCodec;
 import android.media.MediaCodecInfo;
 import android.os.BatteryManager;
 import android.os.Build;
@@ -67,10 +66,15 @@ public final class Server {
 
         boolean tunnelForward = options.isTunnelForward();
         boolean control = options.getControl();
+        boolean sendDummyByte = options.getSendDummyByte();
 
-        try (DesktopConnection connection = DesktopConnection.open(device, tunnelForward, control)) {
+        try (DesktopConnection connection = DesktopConnection.open(tunnelForward, control, sendDummyByte)) {
+            if (options.getSendDeviceMeta()) {
+                Size videoSize = device.getScreenInfo().getVideoSize();
+                connection.sendDeviceMeta(Device.getDeviceName(), videoSize.getWidth(), videoSize.getHeight());
+            }
             ScreenEncoder screenEncoder = new ScreenEncoder(options.getSendFrameMeta(), options.getBitRate(), options.getMaxFps(), codecOptions,
-                    options.getEncoderName());
+                    options.getEncoderName(), options.getDownsizeOnError());
 
             Thread controllerThread = null;
             Thread deviceMessageSenderThread = null;
@@ -200,10 +204,6 @@ public final class Server {
                     Rect crop = parseCrop(value);
                     options.setCrop(crop);
                     break;
-                case "send_frame_meta":
-                    boolean sendFrameMeta = Boolean.parseBoolean(value);
-                    options.setSendFrameMeta(sendFrameMeta);
-                    break;
                 case "control":
                     boolean control = Boolean.parseBoolean(value);
                     options.setControl(control);
@@ -237,6 +237,29 @@ public final class Server {
                     boolean clipboardAutosync = Boolean.parseBoolean(value);
                     options.setClipboardAutosync(clipboardAutosync);
                     break;
+                case "downsize_on_error":
+                    boolean downsizeOnError = Boolean.parseBoolean(value);
+                    options.setDownsizeOnError(downsizeOnError);
+                    break;
+                case "send_device_meta":
+                    boolean sendDeviceMeta = Boolean.parseBoolean(value);
+                    options.setSendDeviceMeta(sendDeviceMeta);
+                    break;
+                case "send_frame_meta":
+                    boolean sendFrameMeta = Boolean.parseBoolean(value);
+                    options.setSendFrameMeta(sendFrameMeta);
+                    break;
+                case "send_dummy_byte":
+                    boolean sendDummyByte = Boolean.parseBoolean(value);
+                    options.setSendDummyByte(sendDummyByte);
+                    break;
+                case "raw_video_stream":
+                    boolean rawVideoStream = Boolean.parseBoolean(value);
+                    if (rawVideoStream) {
+                        options.setSendDeviceMeta(false);
+                        options.setSendFrameMeta(false);
+                        options.setSendDummyByte(false);
+                    }
                 default:
                     Ln.w("Unknown server option: " + key);
                     break;
@@ -263,16 +286,6 @@ public final class Server {
     }
 
     private static void suggestFix(Throwable e) {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-            if (e instanceof MediaCodec.CodecException) {
-                MediaCodec.CodecException mce = (MediaCodec.CodecException) e;
-                if (mce.getErrorCode() == 0xfffffc0e) {
-                    Ln.e("The hardware encoder is not able to encode at the given definition.");
-                    Ln.e("Try with a lower definition:");
-                    Ln.e("    scrcpy -m 1024");
-                }
-            }
-        }
         if (e instanceof InvalidDisplayIdException) {
             InvalidDisplayIdException idie = (InvalidDisplayIdException) e;
             int[] displayIds = idie.getAvailableDisplayIds();

server/src/main/java/com/genymobile/scrcpy/wrappers/InputManager.java

@@ -16,6 +16,7 @@ public final class InputManager {
 
     private final IInterface manager;
     private Method injectInputEventMethod;
+    private boolean alternativeInjectInputEventMethod;
 
     private static Method setDisplayIdMethod;
 
@@ -25,7 +26,12 @@ public final class InputManager {
 
     private Method getInjectInputEventMethod() throws NoSuchMethodException {
         if (injectInputEventMethod == null) {
-            injectInputEventMethod = manager.getClass().getMethod("injectInputEvent", InputEvent.class, int.class);
+            try {
+                injectInputEventMethod = manager.getClass().getMethod("injectInputEvent", InputEvent.class, int.class);
+            } catch (NoSuchMethodException e) {
+                injectInputEventMethod = manager.getClass().getMethod("injectInputEvent", InputEvent.class, int.class, int.class);
+                alternativeInjectInputEventMethod = true;
+            }
         }
         return injectInputEventMethod;
     }
@@ -33,6 +39,10 @@ public final class InputManager {
     public boolean injectInputEvent(InputEvent inputEvent, int mode) {
         try {
             Method method = getInjectInputEventMethod();
+            if (alternativeInjectInputEventMethod) {
+                // See <https://github.com/Genymobile/scrcpy/issues/2250>
+                return (boolean) method.invoke(manager, inputEvent, mode, 0);
+            }
             return (boolean) method.invoke(manager, inputEvent, mode);
         } catch (InvocationTargetException | IllegalAccessException | NoSuchMethodException e) {
             Ln.e("Could not invoke method", e);

server/src/test/java/com/genymobile/scrcpy/ControlMessageReaderTest.java

@@ -128,6 +128,7 @@ public class ControlMessageReaderTest {
         dos.writeShort(1920);
         dos.writeInt(1);
         dos.writeInt(-1);
+        dos.writeInt(1);
 
         byte[] packet = bos.toByteArray();
 
@@ -144,6 +145,7 @@ public class ControlMessageReaderTest {
         Assert.assertEquals(1920, event.getPosition().getScreenSize().getHeight());
         Assert.assertEquals(1, event.getHScroll());
         Assert.assertEquals(-1, event.getVScroll());
+        Assert.assertEquals(1, event.getButtons());
     }
 
     @Test