Handle down/up actions for BACK or POWER ON

Pressing right-click generates either BACK or POWER ON, depending on the
current screen state.

Forward DOWN and UP events separately to the device, to generate key
events accordingly.

Ref #1062 <https://github.com/Genymobile/scrcpy/issues/1062>

DEVELOP.md

@@ -189,7 +189,7 @@ The client uses 4 threads:
    recording,
  - the **controller** thread, sending _control messages_ to the server,
  - the **receiver** thread (managed by the controller), receiving _device
-   messages_ from the server.
+   messages_ from the client.
 
 In addition, another thread can be started if necessary to handle APK
 installation or file push requests (via drag&drop on the main window) or to
@@ -214,7 +214,7 @@ When a new decoded frame is available, the decoder _swaps_ the decoding and
 rendering frame (with proper synchronization). Thus, it immediatly starts
 to decode a new frame while the main thread renders the last one.
 
-If a [recorder] is present (i.e. `--record` is enabled), then it muxes the raw
+If a [recorder] is present (i.e. `--record` is enabled), then its muxes the raw
 H.264 packet to the output video file.
 
 [stream]: https://github.com/Genymobile/scrcpy/blob/ffe0417228fb78ab45b7ee4e202fc06fc8875bf3/app/src/stream.h

LICENSE

@@ -188,7 +188,7 @@
       identification within third-party archives.
 
    Copyright (C) 2018 Genymobile
-   Copyright (C) 2018-2020 Romain Vimont
+   Copyright (C) 2018-2019 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) 2018-2020 Romain Vimont
+    Copyright (C) 2018-2019 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

@@ -37,11 +37,8 @@ control it using keyboard and mouse.
 
 ### Linux
 
-In Debian (_testing_ and _sid_ for now):
-
-```
-apt install scrcpy
-```
+On Linux, you typically need to [build the app manually][BUILD]. Don't worry,
+it's not that hard.
 
 A [Snap] package is available: [`scrcpy`][snap-link].
 
@@ -59,10 +56,6 @@ For Gentoo, an [Ebuild] is available: [`scrcpy/`][ebuild-link].
 [Ebuild]: https://wiki.gentoo.org/wiki/Ebuild
 [ebuild-link]: https://github.com/maggu2810/maggu2810-overlay/tree/master/app-mobilephone/scrcpy
 
-You could also [build the app manually][BUILD] (don't worry, it's not that
-hard).
-
-
 
 ### Windows
 
@@ -77,20 +70,6 @@ For Windows, for simplicity, prebuilt archives with all the dependencies
 [direct-win32]: https://github.com/Genymobile/scrcpy/releases/download/v1.12.1/scrcpy-win32-v1.12.1.zip
 [direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.12.1/scrcpy-win64-v1.12.1.zip
 
-It is also available in [Chocolatey]:
-
-[Chocolatey]: https://chocolatey.org/
-
-```bash
-choco install scrcpy
-```
-
-You need `adb`, accessible from your `PATH`. If you don't have it yet:
-
-```bash
-choco install adb
-```
-
 You can also [build the app manually][BUILD].
 
 
@@ -158,12 +137,14 @@ scrcpy -b 2M  # short version
 
 #### Limit frame rate
 
-On devices with Android >= 10, the capture frame rate can be limited:
+The capture frame rate can be limited:
 
 ```bash
 scrcpy --max-fps 15
 ```
 
+This is officially supported since Android 10, but may work on earlier versions.
+
 #### Crop
 
 The device screen may be cropped to mirror only part of the screen.
@@ -177,21 +158,6 @@ scrcpy --crop 1224:1440:0:0   # 1224x1440 at offset (0,0)
 If `--max-size` is also specified, resizing is applied after cropping.
 
 
-#### Lock video orientation
-
-
-To lock the orientation of the mirroring:
-
-```bash
-scrcpy --lock-video-orientation 0   # natural orientation
-scrcpy --lock-video-orientation 1   # 90° counterclockwise
-scrcpy --lock-video-orientation 2   # 180°
-scrcpy --lock-video-orientation 3   # 90° clockwise
-```
-
-This affects recording orientation.
-
-
 ### Recording
 
 It is possible to record the screen while mirroring:
@@ -250,13 +216,6 @@ scrcpy --serial 0123456789abcdef
 scrcpy -s 0123456789abcdef  # short version
 ```
 
-If the device is connected over TCP/IP:
-
-```bash
-scrcpy --serial 192.168.0.1:5555
-scrcpy -s 192.168.0.1:5555  # short version
-```
-
 You can start several instances of _scrcpy_ for several devices.
 
 #### SSH tunnel
@@ -532,7 +491,7 @@ Read the [developers page].
 ## Licence
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2020 Romain Vimont
+    Copyright (C) 2018-2019 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

@@ -76,11 +76,9 @@ cc = meson.get_compiler('c')
 
 if host_machine.system() == 'windows'
     src += [ 'src/sys/win/command.c' ]
-    src += [ 'src/sys/win/net.c' ]
     dependencies += cc.find_library('ws2_32')
 else
     src += [ 'src/sys/unix/command.c' ]
-    src += [ 'src/sys/unix/net.c' ]
 endif
 
 conf = configuration_data()
@@ -106,12 +104,6 @@ conf.set('DEFAULT_LOCAL_PORT', '27183')
 # overridden by option --max-size
 conf.set('DEFAULT_MAX_SIZE', '0')  # 0: unlimited
 
-# the default video orientation
-# natural device orientation is 0 and each increment adds 90 degrees
-# counterclockwise
-# overridden by option --lock-video-orientation
-conf.set('DEFAULT_LOCK_VIDEO_ORIENTATION', '-1')  # -1: unlocked
-
 # the default video bitrate, in bits/second
 # overridden by option --bit-rate
 conf.set('DEFAULT_BIT_RATE', '8000000')  # 8Mbps

app/scrcpy.1

@@ -41,15 +41,9 @@ Start in fullscreen.
 .B \-h, \-\-help
 Print this help.
 
-.TP
-.BI "\-\-lock\-video\-orientation " value
-Lock video orientation to \fIvalue\fR. Values are integers in the range [-1..3]. Natural device orientation is 0 and each increment adds 90 degrees counterclockwise.
-
-Default is -1 (unlocked).
-
 .TP
 .BI "\-\-max\-fps " value
-Limit the framerate of screen capture (only supported on devices with Android >= 10).
+Limit the framerate of screen capture (officially supported since Android 10, but may work on earlier versions).
 
 .TP
 .BI "\-m, \-\-max\-size " value
@@ -267,7 +261,7 @@ Copyright \(co 2018 Genymobile
 Genymobile
 .UE
 
-Copyright \(co 2018\-2020
+Copyright \(co 2018\-2019
 .MT rom@rom1v.com
 Romain Vimont
 .ME

app/src/cli.c

@@ -41,15 +41,9 @@ scrcpy_print_usage(const char *arg0) {
         "    -h, --help\n"
         "        Print this help.\n"
         "\n"
-        "    --lock-video-orientation value\n"
-        "        Lock video orientation to value. Values are integers in the\n"
-        "        range [-1..3]. Natural device orientation is 0 and each\n"
-        "        increment adds 90 degrees counterclockwise.\n"
-        "        Default is %d%s.\n"
-        "\n"
         "    --max-fps value\n"
-        "        Limit the frame rate of screen capture (only supported on\n"
-        "        devices with Android >= 10).\n"
+        "        Limit the frame rate of screen capture (officially supported\n"
+        "        since Android 10, but may work on earlier versions).\n"
         "\n"
         "    -m, --max-size value\n"
         "        Limit both the width and height of the video to value. The\n"
@@ -199,7 +193,6 @@ scrcpy_print_usage(const char *arg0) {
         arg0,
         DEFAULT_BIT_RATE,
         DEFAULT_MAX_SIZE, DEFAULT_MAX_SIZE ? "" : " (unlimited)",
-        DEFAULT_LOCK_VIDEO_ORIENTATION, DEFAULT_LOCK_VIDEO_ORIENTATION >= 0 ? "" : " (unlocked)",
         DEFAULT_LOCAL_PORT);
 }
 
@@ -266,19 +259,6 @@ parse_max_fps(const char *s, uint16_t *max_fps) {
     return true;
 }
 
-static bool
-parse_lock_video_orientation(const char *s, int8_t *lock_video_orientation) {
-    long value;
-    bool ok = parse_integer_arg(s, &value, false, -1, 3,
-                                "lock video orientation");
-    if (!ok) {
-        return false;
-    }
-
-    *lock_video_orientation = (int8_t) value;
-    return true;
-}
-
 static bool
 parse_window_position(const char *s, int16_t *position) {
     long value;
@@ -347,54 +327,51 @@ guess_record_format(const char *filename) {
     return 0;
 }
 
-#define OPT_RENDER_EXPIRED_FRAMES  1000
-#define OPT_WINDOW_TITLE           1001
-#define OPT_PUSH_TARGET            1002
-#define OPT_ALWAYS_ON_TOP          1003
-#define OPT_CROP                   1004
-#define OPT_RECORD_FORMAT          1005
-#define OPT_PREFER_TEXT            1006
-#define OPT_WINDOW_X               1007
-#define OPT_WINDOW_Y               1008
-#define OPT_WINDOW_WIDTH           1009
-#define OPT_WINDOW_HEIGHT          1010
-#define OPT_WINDOW_BORDERLESS      1011
-#define OPT_MAX_FPS                1012
-#define OPT_LOCK_VIDEO_ORIENTATION 1013
+#define OPT_RENDER_EXPIRED_FRAMES 1000
+#define OPT_WINDOW_TITLE          1001
+#define OPT_PUSH_TARGET           1002
+#define OPT_ALWAYS_ON_TOP         1003
+#define OPT_CROP                  1004
+#define OPT_RECORD_FORMAT         1005
+#define OPT_PREFER_TEXT           1006
+#define OPT_WINDOW_X              1007
+#define OPT_WINDOW_Y              1008
+#define OPT_WINDOW_WIDTH          1009
+#define OPT_WINDOW_HEIGHT         1010
+#define OPT_WINDOW_BORDERLESS     1011
+#define OPT_MAX_FPS               1012
 
 bool
 scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
     static const struct option long_options[] = {
-        {"always-on-top",          no_argument,       NULL, OPT_ALWAYS_ON_TOP},
-        {"bit-rate",               required_argument, NULL, 'b'},
-        {"crop",                   required_argument, NULL, OPT_CROP},
-        {"fullscreen",             no_argument,       NULL, 'f'},
-        {"help",                   no_argument,       NULL, 'h'},
-        {"lock-video-orientation", required_argument, NULL,
-                                                  OPT_LOCK_VIDEO_ORIENTATION},
-        {"max-fps",                required_argument, NULL, OPT_MAX_FPS},
-        {"max-size",               required_argument, NULL, 'm'},
-        {"no-control",             no_argument,       NULL, 'n'},
-        {"no-display",             no_argument,       NULL, 'N'},
-        {"port",                   required_argument, NULL, 'p'},
-        {"push-target",            required_argument, NULL, OPT_PUSH_TARGET},
-        {"record",                 required_argument, NULL, 'r'},
-        {"record-format",          required_argument, NULL, OPT_RECORD_FORMAT},
-        {"render-expired-frames",  no_argument,       NULL,
-                                                  OPT_RENDER_EXPIRED_FRAMES},
-        {"serial",                 required_argument, NULL, 's'},
-        {"show-touches",           no_argument,       NULL, 't'},
-        {"turn-screen-off",        no_argument,       NULL, 'S'},
-        {"prefer-text",            no_argument,       NULL, OPT_PREFER_TEXT},
-        {"version",                no_argument,       NULL, 'v'},
-        {"window-title",           required_argument, NULL, OPT_WINDOW_TITLE},
-        {"window-x",               required_argument, NULL, OPT_WINDOW_X},
-        {"window-y",               required_argument, NULL, OPT_WINDOW_Y},
-        {"window-width",           required_argument, NULL, OPT_WINDOW_WIDTH},
-        {"window-height",          required_argument, NULL, OPT_WINDOW_HEIGHT},
-        {"window-borderless",      no_argument,       NULL,
-                                                  OPT_WINDOW_BORDERLESS},
-        {NULL,                     0,                 NULL, 0  },
+        {"always-on-top",         no_argument,       NULL, OPT_ALWAYS_ON_TOP},
+        {"bit-rate",              required_argument, NULL, 'b'},
+        {"crop",                  required_argument, NULL, OPT_CROP},
+        {"fullscreen",            no_argument,       NULL, 'f'},
+        {"help",                  no_argument,       NULL, 'h'},
+        {"max-fps",               required_argument, NULL, OPT_MAX_FPS},
+        {"max-size",              required_argument, NULL, 'm'},
+        {"no-control",            no_argument,       NULL, 'n'},
+        {"no-display",            no_argument,       NULL, 'N'},
+        {"port",                  required_argument, NULL, 'p'},
+        {"push-target",           required_argument, NULL, OPT_PUSH_TARGET},
+        {"record",                required_argument, NULL, 'r'},
+        {"record-format",         required_argument, NULL, OPT_RECORD_FORMAT},
+        {"render-expired-frames", no_argument,       NULL,
+                                                     OPT_RENDER_EXPIRED_FRAMES},
+        {"serial",                required_argument, NULL, 's'},
+        {"show-touches",          no_argument,       NULL, 't'},
+        {"turn-screen-off",       no_argument,       NULL, 'S'},
+        {"prefer-text",           no_argument,       NULL, OPT_PREFER_TEXT},
+        {"version",               no_argument,       NULL, 'v'},
+        {"window-title",          required_argument, NULL, OPT_WINDOW_TITLE},
+        {"window-x",              required_argument, NULL, OPT_WINDOW_X},
+        {"window-y",              required_argument, NULL, OPT_WINDOW_Y},
+        {"window-width",          required_argument, NULL, OPT_WINDOW_WIDTH},
+        {"window-height",         required_argument, NULL, OPT_WINDOW_HEIGHT},
+        {"window-borderless",     no_argument,       NULL,
+                                                     OPT_WINDOW_BORDERLESS},
+        {NULL,                    0,                 NULL, 0  },
     };
 
     struct scrcpy_options *opts = &args->opts;
@@ -440,11 +417,6 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
                     return false;
                 }
                 break;
-            case OPT_LOCK_VIDEO_ORIENTATION:
-                if (!parse_lock_video_orientation(optarg, &opts->lock_video_orientation)) {
-                    return false;
-                }
-                break;
             case 'n':
                 opts->control = false;
                 break;

app/src/command.c

@@ -4,9 +4,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
 
 #include "config.h"
 #include "common.h"
@@ -205,14 +202,3 @@ process_check_success(process_t proc, const char *name) {
     }
     return true;
 }
-
-bool
-is_regular_file(const char *path) {
-    struct stat path_stat;
-    int r = stat(path, &path_stat);
-    if (r) {
-        perror("stat");
-        return false;
-    }
-    return S_ISREG(path_stat.st_mode);
-}

app/src/control_msg.c

@@ -75,6 +75,8 @@ control_msg_serialize(const struct control_msg *msg, unsigned char *buf) {
             buf[1] = msg->set_screen_power_mode.mode;
             return 2;
         case CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON:
+            buf[1] = msg->back_or_screen_on.action;
+            return 2;
         case CONTROL_MSG_TYPE_EXPAND_NOTIFICATION_PANEL:
         case CONTROL_MSG_TYPE_COLLAPSE_NOTIFICATION_PANEL:
         case CONTROL_MSG_TYPE_GET_CLIPBOARD:

app/src/control_msg.h

@@ -66,6 +66,9 @@ struct control_msg {
         struct {
             enum screen_power_mode mode;
         } set_screen_power_mode;
+        struct {
+            enum android_keyevent_action action;
+        } back_or_screen_on;
     };
 };
 

app/src/input_manager.c

@@ -99,9 +99,14 @@ action_menu(struct controller *controller, int actions) {
 
 // turn the screen on if it was off, press BACK otherwise
 static void
-press_back_or_turn_screen_on(struct controller *controller) {
+press_back_or_turn_screen_on(struct controller *controller, int action) {
+    assert(action == ACTION_DOWN || action == ACTION_UP);
+
     struct control_msg msg;
     msg.type = CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON;
+    msg.back_or_screen_on.action = action == ACTION_DOWN
+                                 ? AKEY_EVENT_ACTION_DOWN
+                                 : AKEY_EVENT_ACTION_UP;
 
     if (!controller_push_msg(controller, &msg)) {
         LOGW("Could not request 'press back or turn screen on'");
@@ -521,31 +526,36 @@ input_manager_process_mouse_button(struct input_manager *im,
         // simulated from touch events, so it's a duplicate
         return;
     }
-    if (event->type == SDL_MOUSEBUTTONDOWN) {
-        if (control && event->button == SDL_BUTTON_RIGHT) {
-            press_back_or_turn_screen_on(im->controller);
+
+    // double-click on black borders resize to fit the device screen
+    if (event->type == SDL_MOUSEBUTTONDOWN
+            && event->button == SDL_BUTTON_LEFT
+            && event->clicks == 2) {
+        bool outside = is_outside_device_screen(im, event->x, event->y);
+        if (outside) {
+            screen_resize_to_fit(im->screen);
             return;
         }
-        if (control && event->button == SDL_BUTTON_MIDDLE) {
-            action_home(im->controller, ACTION_DOWN | ACTION_UP);
-            return;
-        }
-        // double-click on black borders resize to fit the device screen
-        if (event->button == SDL_BUTTON_LEFT && event->clicks == 2) {
-            bool outside =
-                is_outside_device_screen(im, event->x, event->y);
-            if (outside) {
-                screen_resize_to_fit(im->screen);
-                return;
-            }
-        }
-        // otherwise, send the click event to the device
     }
 
     if (!control) {
         return;
     }
 
+    if (event->button == SDL_BUTTON_MIDDLE) {
+        int action = event->type == SDL_MOUSEBUTTONDOWN ? ACTION_DOWN
+                                                        : ACTION_UP;
+        action_home(im->controller, action);
+        return;
+    }
+
+    if (event->button == SDL_BUTTON_RIGHT) {
+        int action = event->type == SDL_MOUSEBUTTONDOWN ? ACTION_DOWN
+                                                        : ACTION_UP;
+        press_back_or_turn_screen_on(im->controller, action);
+        return;
+    }
+
     struct control_msg msg;
     if (convert_mouse_button(event, im->screen, &msg)) {
         if (!controller_push_msg(im->controller, &msg)) {

app/src/scrcpy.c

@@ -284,7 +284,6 @@ scrcpy(const struct scrcpy_options *options) {
         .max_size = options->max_size,
         .bit_rate = options->bit_rate,
         .max_fps = options->max_fps,
-        .lock_video_orientation = options->lock_video_orientation,
         .control = options->control,
     };
     if (!server_start(&server, options->serial, &params)) {

app/src/scrcpy.h

@@ -19,7 +19,6 @@ struct scrcpy_options {
     uint16_t max_size;
     uint32_t bit_rate;
     uint16_t max_fps;
-    int8_t lock_video_orientation;
     int16_t window_x;
     int16_t window_y;
     uint16_t window_width;
@@ -46,7 +45,6 @@ struct scrcpy_options {
     .max_size = DEFAULT_MAX_SIZE, \
     .bit_rate = DEFAULT_BIT_RATE, \
     .max_fps = 0, \
-    .lock_video_orientation = DEFAULT_LOCK_VIDEO_ORIENTATION, \
     .window_x = -1, \
     .window_y = -1, \
     .window_width = 0, \

app/src/server.c

@@ -6,11 +6,13 @@
 #include <libgen.h>
 #include <stdio.h>
 #include <SDL2/SDL_timer.h>
+#include <SDL2/SDL_platform.h>
 
 #include "config.h"
 #include "command.h"
 #include "util/log.h"
 #include "util/net.h"
+#include "util/str_util.h"
 
 #define SOCKET_NAME "scrcpy"
 #define SERVER_FILENAME "scrcpy-server"
@@ -18,20 +20,39 @@
 #define DEFAULT_SERVER_PATH PREFIX "/share/scrcpy/" SERVER_FILENAME
 #define DEVICE_SERVER_PATH "/data/local/tmp/scrcpy-server.jar"
 
-static const char *
+static char *
 get_server_path(void) {
+#ifdef __WINDOWS__
+    const wchar_t *server_path_env = _wgetenv(L"SCRCPY_SERVER_PATH");
+#else
     const char *server_path_env = getenv("SCRCPY_SERVER_PATH");
+#endif
     if (server_path_env) {
-        LOGD("Using SCRCPY_SERVER_PATH: %s", server_path_env);
         // if the envvar is set, use it
-        return server_path_env;
+#ifdef __WINDOWS__
+        char *server_path = utf8_from_wide_char(server_path_env);
+#else
+        char *server_path = SDL_strdup(server_path_env);
+#endif
+        if (!server_path) {
+            LOGE("Could not allocate memory");
+            return NULL;
+        }
+        LOGD("Using SCRCPY_SERVER_PATH: %s", server_path);
+        return server_path;
     }
 
 #ifndef PORTABLE
     LOGD("Using server: " DEFAULT_SERVER_PATH);
+    char *server_path = SDL_strdup(DEFAULT_SERVER_PATH);
+    if (!server_path) {
+        LOGE("Could not allocate memory");
+        return NULL;
+    }
     // the absolute path is hardcoded
-    return DEFAULT_SERVER_PATH;
+    return server_path;
 #else
+
     // use scrcpy-server in the same directory as the executable
     char *executable_path = get_executable_path();
     if (!executable_path) {
@@ -67,12 +88,17 @@ get_server_path(void) {
 
 static bool
 push_server(const char *serial) {
-    const char *server_path = get_server_path();
+    char *server_path = get_server_path();
+    if (!server_path) {
+        return false;
+    }
     if (!is_regular_file(server_path)) {
         LOGE("'%s' does not exist or is not a regular file\n", server_path);
+        SDL_free(server_path);
         return false;
     }
     process_t process = adb_push(serial, server_path, DEVICE_SERVER_PATH);
+    SDL_free(server_path);
     return process_check_success(process, "adb push");
 }
 
@@ -124,11 +150,9 @@ execute_server(struct server *server, const struct server_params *params) {
     char max_size_string[6];
     char bit_rate_string[11];
     char max_fps_string[6];
-    char lock_video_orientation_string[3];
     sprintf(max_size_string, "%"PRIu16, params->max_size);
     sprintf(bit_rate_string, "%"PRIu32, params->bit_rate);
     sprintf(max_fps_string, "%"PRIu16, params->max_fps);
-    sprintf(lock_video_orientation_string, "%"PRIi8, params->lock_video_orientation);
     const char *const cmd[] = {
         "shell",
         "CLASSPATH=" DEVICE_SERVER_PATH,
@@ -144,7 +168,6 @@ execute_server(struct server *server, const struct server_params *params) {
         max_size_string,
         bit_rate_string,
         max_fps_string,
-        lock_video_orientation_string,
         server->tunnel_forward ? "true" : "false",
         params->crop ? params->crop : "-",
         "true", // always send frame meta (packet boundaries + timestamp)

app/src/server.h

@@ -36,7 +36,6 @@ struct server_params {
     uint16_t max_size;
     uint32_t bit_rate;
     uint16_t max_fps;
-    int8_t lock_video_orientation;
     bool control;
 };
 

app/src/sys/unix/command.c

@@ -15,6 +15,7 @@
 #include <signal.h>
 #include <stdlib.h>
 #include <sys/types.h>
+#include <sys/stat.h>
 #include <sys/wait.h>
 #include <unistd.h>
 
@@ -127,3 +128,14 @@ get_executable_path(void) {
     return NULL;
 #endif
 }
+
+bool
+is_regular_file(const char *path) {
+    struct stat path_stat;
+
+    if (stat(path, &path_stat)) {
+        perror("stat");
+        return false;
+    }
+    return S_ISREG(path_stat.st_mode);
+}

app/src/sys/unix/net.c

@@ -1,21 +0,0 @@
-#include "util/net.h"
-
-#include <unistd.h>
-
-#include "config.h"
-
-bool
-net_init(void) {
-    // do nothing
-    return true;
-}
-
-void
-net_cleanup(void) {
-    // do nothing
-}
-
-bool
-net_close(socket_t socket) {
-    return !close(socket);
-}

app/src/sys/win/command.c

@@ -4,6 +4,8 @@
 #include "util/log.h"
 #include "util/str_util.h"
 
+#include <sys/stat.h>
+
 static int
 build_cmd(char *cmd, size_t len, const char *const argv[]) {
     // Windows command-line parsing is WTF:
@@ -90,3 +92,22 @@ get_executable_path(void) {
     buf[len] = '\0';
     return utf8_from_wide_char(buf);
 }
+
+bool
+is_regular_file(const char *path) {
+    wchar_t *wide_path = utf8_to_wide_char(path);
+    if (!wide_path) {
+        LOGC("Could not allocate wide char string");
+        return false;
+    }
+
+    struct _stat path_stat;
+    int r = _wstat(wide_path, &path_stat);
+    SDL_free(wide_path);
+
+    if (r) {
+        perror("stat");
+        return false;
+    }
+    return S_ISREG(path_stat.st_mode);
+}

app/src/sys/win/net.c

@@ -1,25 +0,0 @@
-#include "util/net.h"
-
-#include "config.h"
-#include "util/log.h"
-
-bool
-net_init(void) {
-    WSADATA wsa;
-    int res = WSAStartup(MAKEWORD(2, 2), &wsa) < 0;
-    if (res < 0) {
-        LOGC("WSAStartup failed with error %d", res);
-        return false;
-    }
-    return true;
-}
-
-void
-net_cleanup(void) {
-    WSACleanup();
-}
-
-bool
-net_close(socket_t socket) {
-    return !closesocket(socket);
-}

app/src/util/net.c

@@ -1,6 +1,7 @@
 #include "net.h"
 
 #include <stdio.h>
+#include <SDL2/SDL_platform.h>
 
 #include "config.h"
 #include "log.h"
@@ -115,3 +116,32 @@ bool
 net_shutdown(socket_t socket, int how) {
     return !shutdown(socket, how);
 }
+
+bool
+net_init(void) {
+#ifdef __WINDOWS__
+    WSADATA wsa;
+    int res = WSAStartup(MAKEWORD(2, 2), &wsa) < 0;
+    if (res < 0) {
+        LOGC("WSAStartup failed with error %d", res);
+        return false;
+    }
+#endif
+    return true;
+}
+
+void
+net_cleanup(void) {
+#ifdef __WINDOWS__
+    WSACleanup();
+#endif
+}
+
+bool
+net_close(socket_t socket) {
+#ifdef __WINDOWS__
+    return !closesocket(socket);
+#else
+    return !close(socket);
+#endif
+}

app/tests/test_cli.c

@@ -48,7 +48,6 @@ static void test_options(void) {
         "--fullscreen",
         "--max-fps", "30",
         "--max-size", "1024",
-        "--lock-video-orientation", "2",
         // "--no-control" is not compatible with "--turn-screen-off"
         // "--no-display" is not compatible with "--fulscreen"
         "--port", "1234",
@@ -79,7 +78,6 @@ static void test_options(void) {
     assert(opts->fullscreen);
     assert(opts->max_fps == 30);
     assert(opts->max_size == 1024);
-    assert(opts->lock_video_orientation == 2);
     assert(opts->port == 1234);
     assert(!strcmp(opts->push_target, "/sdcard/Movies"));
     assert(!strcmp(opts->record_filename, "file"));

app/tests/test_control_msg_serialize.c

@@ -140,14 +140,18 @@ static void test_serialize_inject_scroll_event(void) {
 static void test_serialize_back_or_screen_on(void) {
     struct control_msg msg = {
         .type = CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON,
+        .back_or_screen_on = {
+            .action = AKEY_EVENT_ACTION_UP,
+        },
     };
 
     unsigned char buf[CONTROL_MSG_SERIALIZED_MAX_SIZE];
     int size = control_msg_serialize(&msg, buf);
-    assert(size == 1);
+    assert(size == 2);
 
     const unsigned char expected[] = {
         CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON,
+        AKEY_EVENT_ACTION_UP,
     };
     assert(!memcmp(buf, expected, sizeof(expected)));
 }

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

@@ -85,6 +85,13 @@ public final class ControlMessage {
         return msg;
     }
 
+    public static ControlMessage createBackOrScreenOn(int action) {
+        ControlMessage msg = new ControlMessage();
+        msg.type = TYPE_BACK_OR_SCREEN_ON;
+        msg.action = action;
+        return msg;
+    }
+
     public static ControlMessage createEmpty(int type) {
         ControlMessage msg = new ControlMessage();
         msg.type = type;

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

@@ -13,6 +13,7 @@ public class ControlMessageReader {
     private static final int INJECT_TOUCH_EVENT_PAYLOAD_LENGTH = 21;
     private static final int INJECT_SCROLL_EVENT_PAYLOAD_LENGTH = 20;
     private static final int SET_SCREEN_POWER_MODE_PAYLOAD_LENGTH = 1;
+    private static final int BACK_OR_SCREEN_ON_PAYLOAD_LENGTH = 1;
 
     public static final int TEXT_MAX_LENGTH = 300;
     public static final int CLIPBOARD_TEXT_MAX_LENGTH = 4093;
@@ -73,6 +74,8 @@ public class ControlMessageReader {
                 msg = parseSetScreenPowerMode();
                 break;
             case ControlMessage.TYPE_BACK_OR_SCREEN_ON:
+                msg = parseBackOrScreenOn();
+                break;
             case ControlMessage.TYPE_EXPAND_NOTIFICATION_PANEL:
             case ControlMessage.TYPE_COLLAPSE_NOTIFICATION_PANEL:
             case ControlMessage.TYPE_GET_CLIPBOARD:
@@ -164,6 +167,14 @@ public class ControlMessageReader {
         return ControlMessage.createSetScreenPowerMode(mode);
     }
 
+    private ControlMessage parseBackOrScreenOn() {
+        if (buffer.remaining() < BACK_OR_SCREEN_ON_PAYLOAD_LENGTH) {
+            return null;
+        }
+        int action = toUnsigned(buffer.get());
+        return ControlMessage.createBackOrScreenOn(action);
+    }
+
     private static Position readPosition(ByteBuffer buffer) {
         int x = buffer.getInt();
         int y = buffer.getInt();

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

@@ -26,6 +26,9 @@ public class Controller {
     private final MotionEvent.PointerProperties[] pointerProperties = new MotionEvent.PointerProperties[PointersState.MAX_POINTERS];
     private final MotionEvent.PointerCoords[] pointerCoords = new MotionEvent.PointerCoords[PointersState.MAX_POINTERS];
 
+    private boolean backPressed;
+    private boolean powerPressed;
+
     public Controller(Device device, DesktopConnection connection) {
         this.device = device;
         this.connection = connection;
@@ -88,7 +91,7 @@ public class Controller {
                 injectScroll(msg.getPosition(), msg.getHScroll(), msg.getVScroll());
                 break;
             case ControlMessage.TYPE_BACK_OR_SCREEN_ON:
-                pressBackOrTurnScreenOn();
+                pressBackOrTurnScreenOn(msg.getAction());
                 break;
             case ControlMessage.TYPE_EXPAND_NOTIFICATION_PANEL:
                 device.expandNotificationPanel();
@@ -223,8 +226,33 @@ public class Controller {
         return device.injectInputEvent(event, InputManager.INJECT_INPUT_EVENT_MODE_ASYNC);
     }
 
-    private boolean pressBackOrTurnScreenOn() {
-        int keycode = device.isScreenOn() ? KeyEvent.KEYCODE_BACK : KeyEvent.KEYCODE_POWER;
-        return injectKeycode(keycode);
+    private boolean pressBackOrTurnScreenOn(int action) {
+        int keycode = -1;
+        if (action == KeyEvent.ACTION_UP) {
+            // if BACK or POWER were pressed, this action is the corresponding release event (regardless of the screen state)
+            if (backPressed) {
+                keycode = KeyEvent.KEYCODE_BACK;
+                backPressed = false;
+            } else if (powerPressed) {
+                keycode = KeyEvent.KEYCODE_POWER;
+                powerPressed = false;
+            }
+        }
+
+        if (keycode == -1) {
+            keycode = device.isScreenOn() ? KeyEvent.KEYCODE_BACK : KeyEvent.KEYCODE_POWER;
+        }
+
+        if (action == KeyEvent.ACTION_DOWN) {
+            if (keycode == KeyEvent.KEYCODE_BACK) {
+                backPressed = true;
+                powerPressed = false;
+            } else {
+                backPressed = false;
+                powerPressed = true;
+            }
+        }
+
+        return injectKeyEvent(action, keycode, 0, 0);
     }
 }

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

@@ -22,13 +22,10 @@ public final class Device {
 
     private final ServiceManager serviceManager = new ServiceManager();
 
-
-    private final int lockedVideoOrientation;
     private ScreenInfo screenInfo;
     private RotationListener rotationListener;
 
     public Device(Options options) {
-        lockedVideoOrientation = options.getLockedVideoOrientation();
         screenInfo = computeScreenInfo(options.getCrop(), options.getMaxSize());
         registerRotationWatcher(new IRotationWatcher.Stub() {
             @Override
@@ -51,11 +48,11 @@ public final class Device {
 
     private ScreenInfo computeScreenInfo(Rect crop, int maxSize) {
         DisplayInfo displayInfo = serviceManager.getDisplayManager().getDisplayInfo();
-        int rotation = displayInfo.getRotation();
+        boolean rotated = (displayInfo.getRotation() & 1) != 0;
         Size deviceSize = displayInfo.getSize();
         Rect contentRect = new Rect(0, 0, deviceSize.getWidth(), deviceSize.getHeight());
         if (crop != null) {
-            if (rotation % 2 != 0) { // 180s preserve dimensions
+            if (rotated) {
                 // the crop (provided by the user) is expressed in the natural orientation
                 crop = flipRect(crop);
             }
@@ -67,7 +64,7 @@ public final class Device {
         }
 
         Size videoSize = computeVideoSize(contentRect.width(), contentRect.height(), maxSize);
-        return new ScreenInfo(contentRect, videoSize, rotation);
+        return new ScreenInfo(contentRect, videoSize, rotated);
     }
 
     private static String formatCrop(Rect rect) {
@@ -102,55 +99,22 @@ public final class Device {
         return new Size(w, h);
     }
 
-    /**
-     * Return the rotation to apply to the device rotation to get the requested locked video orientation
-     *
-     * @param deviceRotation the device rotation
-     * @return the rotation offset
-     */
-    public int getVideoRotation(int deviceRotation) {
-        if (lockedVideoOrientation == -1) {
-            // no offset
-            return 0;
-        }
-        return (deviceRotation + 4 - lockedVideoOrientation) % 4;
-    }
-
-    /**
-     * Return the rotation to apply to the requested locked video orientation to get the device rotation
-     * @param deviceRotation the device rotation
-     * @return the (reverse) rotation offset
-     */
-    private int getReverseVideoRotation(int deviceRotation) {
-        if (lockedVideoOrientation == -1) {
-            // no offset
-            return 0;
-        }
-        return (lockedVideoOrientation + 4 - deviceRotation) % 4;
-    }
-
     public Point getPhysicalPoint(Position position) {
         // it hides the field on purpose, to read it with a lock
         @SuppressWarnings("checkstyle:HiddenField")
         ScreenInfo screenInfo = getScreenInfo(); // read with synchronization
         Size videoSize = screenInfo.getVideoSize();
-
-        int deviceRotation = screenInfo.getRotation();
-        int reverseVideoRotation = getReverseVideoRotation(deviceRotation);
-        // reverse the video rotation to apply the events
-        Position devicePosition = position.rotate(reverseVideoRotation);
-
-        Size clientVideoSize = devicePosition.getScreenSize();
+        Size clientVideoSize = position.getScreenSize();
         if (!videoSize.equals(clientVideoSize)) {
             // The client sends a click relative to a video with wrong dimensions,
             // the device may have been rotated since the event was generated, so ignore the event
             return null;
         }
         Rect contentRect = screenInfo.getContentRect();
-        Point point = devicePosition.getPoint();
-        int convertedX = contentRect.left + point.getX() * contentRect.width() / videoSize.getWidth();
-        int convertedY = contentRect.top + point.getY() * contentRect.height() / videoSize.getHeight();
-        return new Point(convertedX, convertedY);
+        Point point = position.getPoint();
+        int scaledX = contentRect.left + point.getX() * contentRect.width() / videoSize.getWidth();
+        int scaledY = contentRect.top + point.getY() * contentRect.height() / videoSize.getHeight();
+        return new Point(scaledX, scaledY);
     }
 
     public static String getDeviceName() {

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

@@ -6,7 +6,6 @@ public class Options {
     private int maxSize;
     private int bitRate;
     private int maxFps;
-    private int lockedVideoOrientation;
     private boolean tunnelForward;
     private Rect crop;
     private boolean sendFrameMeta; // send PTS so that the client may record properly
@@ -36,14 +35,6 @@ public class Options {
         this.maxFps = maxFps;
     }
 
-    public int getLockedVideoOrientation() {
-        return lockedVideoOrientation;
-    }
-
-    public void setLockedVideoOrientation(int lockedVideoOrientation) {
-        this.lockedVideoOrientation = lockedVideoOrientation;
-    }
-
     public boolean isTunnelForward() {
         return tunnelForward;
     }

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

@@ -23,19 +23,6 @@ public class Position {
         return screenSize;
     }
 
-    public Position rotate(int rotation) {
-        switch (rotation) {
-            case 1:
-                return new Position(new Point(screenSize.getHeight() - point.getY(), point.getX()), screenSize.rotate());
-            case 2:
-                return new Position(new Point(screenSize.getWidth() - point.getX(), screenSize.getHeight() - point.getY()), screenSize);
-            case 3:
-                return new Position(new Point(point.getY(), screenSize.getWidth() - point.getX()), screenSize.rotate());
-            default:
-                return this;
-        }
-    }
-
     @Override
     public boolean equals(Object o) {
         if (this == o) {

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

@@ -19,6 +19,7 @@ public class ScreenEncoder implements Device.RotationListener {
 
     private static final int DEFAULT_I_FRAME_INTERVAL = 10; // seconds
     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";
 
     private static final int NO_PTS = -1;
 
@@ -27,21 +28,19 @@ public class ScreenEncoder implements Device.RotationListener {
 
     private int bitRate;
     private int maxFps;
-    private int lockedVideoOrientation;
     private int iFrameInterval;
     private boolean sendFrameMeta;
     private long ptsOrigin;
 
-    public ScreenEncoder(boolean sendFrameMeta, int bitRate, int maxFps, int lockedVideoOrientation, int iFrameInterval) {
+    public ScreenEncoder(boolean sendFrameMeta, int bitRate, int maxFps, int iFrameInterval) {
         this.sendFrameMeta = sendFrameMeta;
         this.bitRate = bitRate;
         this.maxFps = maxFps;
-        this.lockedVideoOrientation = lockedVideoOrientation;
         this.iFrameInterval = iFrameInterval;
     }
 
-    public ScreenEncoder(boolean sendFrameMeta, int bitRate, int maxFps, int lockedVideoOrientation) {
-        this(sendFrameMeta, bitRate, maxFps, lockedVideoOrientation, DEFAULT_I_FRAME_INTERVAL);
+    public ScreenEncoder(boolean sendFrameMeta, int bitRate, int maxFps) {
+        this(sendFrameMeta, bitRate, maxFps, DEFAULT_I_FRAME_INTERVAL);
     }
 
     @Override
@@ -64,14 +63,12 @@ public class ScreenEncoder implements Device.RotationListener {
             do {
                 MediaCodec codec = createCodec();
                 IBinder display = createDisplay();
-                ScreenInfo screenInfo = device.getScreenInfo();
-                Rect contentRect = screenInfo.getContentRect();
-                Rect videoRect = screenInfo.getVideoSize().toRect();
-                int videoRotation = device.getVideoRotation(screenInfo.getRotation());
-                setSize(format, videoRotation, videoRect.width(), videoRect.height());
+                Rect contentRect = device.getScreenInfo().getContentRect();
+                Rect videoRect = device.getScreenInfo().getVideoSize().toRect();
+                setSize(format, videoRect.width(), videoRect.height());
                 configure(codec, format);
                 Surface surface = codec.createInputSurface();
-                setDisplaySurface(display, surface, videoRotation, contentRect, videoRect);
+                setDisplaySurface(display, surface, contentRect, videoRect);
                 codec.start();
                 try {
                     alive = encode(codec, fd);
@@ -154,11 +151,10 @@ public class ScreenEncoder implements Device.RotationListener {
         // display the very first frame, and recover from bad quality when no new frames
         format.setLong(MediaFormat.KEY_REPEAT_PREVIOUS_FRAME_AFTER, REPEAT_FRAME_DELAY_US); // µs
         if (maxFps > 0) {
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
-                format.setFloat(MediaFormat.KEY_MAX_FPS_TO_ENCODER, maxFps);
-            } else {
-                Ln.w("Max FPS is only supported since Android 10, the option has been ignored");
-            }
+            // The key existed privately before Android 10:
+            // <https://android.googlesource.com/platform/frameworks/base/+/625f0aad9f7a259b6881006ad8710adce57d1384%5E%21/>
+            // <https://github.com/Genymobile/scrcpy/issues/488#issuecomment-567321437>
+            format.setFloat(KEY_MAX_FPS_TO_ENCODER, maxFps);
         }
         return format;
     }
@@ -171,21 +167,16 @@ public class ScreenEncoder implements Device.RotationListener {
         codec.configure(format, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
     }
 
-    private static void setSize(MediaFormat format, int orientation, int width, int height) {
-        if (orientation % 2 == 0) {
-            format.setInteger(MediaFormat.KEY_WIDTH, width);
-            format.setInteger(MediaFormat.KEY_HEIGHT, height);
-            return;
-        }
-        format.setInteger(MediaFormat.KEY_WIDTH, height);
-        format.setInteger(MediaFormat.KEY_HEIGHT, width);
+    private static void setSize(MediaFormat format, int width, int height) {
+        format.setInteger(MediaFormat.KEY_WIDTH, width);
+        format.setInteger(MediaFormat.KEY_HEIGHT, height);
     }
 
-    private static void setDisplaySurface(IBinder display, Surface surface, int orientation, Rect deviceRect, Rect displayRect) {
+    private static void setDisplaySurface(IBinder display, Surface surface, Rect deviceRect, Rect displayRect) {
         SurfaceControl.openTransaction();
         try {
             SurfaceControl.setDisplaySurface(display, surface);
-            SurfaceControl.setDisplayProjection(display, orientation, deviceRect, displayRect);
+            SurfaceControl.setDisplayProjection(display, 0, deviceRect, displayRect);
             SurfaceControl.setDisplayLayerStack(display, 0);
         } finally {
             SurfaceControl.closeTransaction();

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

@@ -5,12 +5,12 @@ import android.graphics.Rect;
 public final class ScreenInfo {
     private final Rect contentRect; // device size, possibly cropped
     private final Size videoSize;
-    private final int rotation;
+    private final boolean rotated;
 
-    public ScreenInfo(Rect contentRect, Size videoSize, int rotation) {
+    public ScreenInfo(Rect contentRect, Size videoSize, boolean rotated) {
         this.contentRect = contentRect;
         this.videoSize = videoSize;
-        this.rotation = rotation;
+        this.rotated = rotated;
     }
 
     public Rect getContentRect() {
@@ -21,25 +21,11 @@ public final class ScreenInfo {
         return videoSize;
     }
 
-    public int getRotation() {
-        return rotation;
-    }
-
-    public ScreenInfo withRotation(int newRotation) {
-        if (newRotation == rotation) {
+    public ScreenInfo withRotation(int rotation) {
+        boolean newRotated = (rotation & 1) != 0;
+        if (rotated == newRotated) {
             return this;
         }
-        // true if changed between portrait and landscape
-        boolean orientationChanged = (rotation + newRotation) % 2 != 0;
-        Rect newContentRect;
-        Size newVideoSize;
-        if (orientationChanged) {
-            newContentRect = Device.flipRect(contentRect);
-            newVideoSize = videoSize.rotate();
-        } else {
-            newContentRect = contentRect;
-            newVideoSize = videoSize;
-        }
-        return new ScreenInfo(newContentRect, newVideoSize, newRotation);
+        return new ScreenInfo(Device.flipRect(contentRect), videoSize.rotate(), newRotated);
     }
 }

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

@@ -19,8 +19,7 @@ public final class Server {
         final Device device = new Device(options);
         boolean tunnelForward = options.isTunnelForward();
         try (DesktopConnection connection = DesktopConnection.open(device, tunnelForward)) {
-            ScreenEncoder screenEncoder = new ScreenEncoder(options.getSendFrameMeta(), options.getBitRate(), options.getMaxFps(),
-                    options.getLockedVideoOrientation());
+            ScreenEncoder screenEncoder = new ScreenEncoder(options.getSendFrameMeta(), options.getBitRate(), options.getMaxFps());
 
             if (options.getControl()) {
                 Controller controller = new Controller(device, connection);
@@ -80,8 +79,8 @@ public final class Server {
                     "The server version (" + clientVersion + ") does not match the client " + "(" + BuildConfig.VERSION_NAME + ")");
         }
 
-        if (args.length != 9) {
-            throw new IllegalArgumentException("Expecting 9 parameters");
+        if (args.length != 8) {
+            throw new IllegalArgumentException("Expecting 8 parameters");
         }
 
         Options options = new Options();
@@ -95,20 +94,17 @@ public final class Server {
         int maxFps = Integer.parseInt(args[3]);
         options.setMaxFps(maxFps);
 
-        int lockedVideoOrientation = Integer.parseInt(args[4]);
-        options.setLockedVideoOrientation(lockedVideoOrientation);
-
         // use "adb forward" instead of "adb tunnel"? (so the server must listen)
-        boolean tunnelForward = Boolean.parseBoolean(args[5]);
+        boolean tunnelForward = Boolean.parseBoolean(args[4]);
         options.setTunnelForward(tunnelForward);
 
-        Rect crop = parseCrop(args[6]);
+        Rect crop = parseCrop(args[5]);
         options.setCrop(crop);
 
-        boolean sendFrameMeta = Boolean.parseBoolean(args[7]);
+        boolean sendFrameMeta = Boolean.parseBoolean(args[6]);
         options.setSendFrameMeta(sendFrameMeta);
 
-        boolean control = Boolean.parseBoolean(args[8]);
+        boolean control = Boolean.parseBoolean(args[7]);
         options.setControl(control);
 
         return options;

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

@@ -145,6 +145,7 @@ public class ControlMessageReaderTest {
         ByteArrayOutputStream bos = new ByteArrayOutputStream();
         DataOutputStream dos = new DataOutputStream(bos);
         dos.writeByte(ControlMessage.TYPE_BACK_OR_SCREEN_ON);
+        dos.writeByte(KeyEvent.ACTION_UP);
 
         byte[] packet = bos.toByteArray();
 
@@ -152,6 +153,7 @@ public class ControlMessageReaderTest {
         ControlMessage event = reader.next();
 
         Assert.assertEquals(ControlMessage.TYPE_BACK_OR_SCREEN_ON, event.getType());
+        Assert.assertEquals(KeyEvent.ACTION_UP, event.getAction());
     }
 
     @Test