Inherit handles only if necessary on Windows

Refs #2779 <https://github.com/Genymobile/scrcpy/issues/2779>

BUILD.md

@@ -270,10 +270,10 @@ install` must be run as root)._
 
 #### Option 2: Use prebuilt server
 
- - [`scrcpy-server-v1.19`][direct-scrcpy-server]  
-   _(SHA-256: 876f9322182e6aac6a58db1334f4225855ef3a17eaebc80aab6601d9d1ecb867)_
+ - [`scrcpy-server-v1.20`][direct-scrcpy-server]  
+   _(SHA-256: b20aee4951f99b060c4a44000ba94de973f9604758ef62beb253b371aad3df34)_
 
-[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.19/scrcpy-server-v1.19
+[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.20/scrcpy-server-v1.20
 
 Download the prebuilt server somewhere, and specify its path during the Meson
 configuration:

README.md

@@ -1,4 +1,4 @@
-# scrcpy (v1.19)
+# scrcpy (v1.20)
 
 <img src="data/icon.svg" width="128" height="128" alt="scrcpy" align="right" />
 
@@ -101,10 +101,10 @@ process][BUILD_simple]).
 For Windows, for simplicity, a prebuilt archive with all the dependencies
 (including `adb`) is available:
 
- - [`scrcpy-win64-v1.19.zip`][direct-win64]  
-   _(SHA-256: 383d6483f25ac0092d4bb9fef6c967351ecd50fc248e0c82932db97d6d32f11b)_
+ - [`scrcpy-win64-v1.20.zip`][direct-win64]  
+   _(SHA-256: 548532b616288bcaeceff6881ad5e6f0928e5ae2b48c380385f03627401cfdba)_
 
-[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.19/scrcpy-win64-v1.19.zip
+[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.20/scrcpy-win64-v1.20.zip
 
 It is also available in [Chocolatey]:
 

app/src/icon.c

@@ -158,6 +158,12 @@ free_ctx:
     return result;
 }
 
+#if !SDL_VERSION_ATLEAST(2, 0, 10)
+// SDL_PixelFormatEnum has been introduced in SDL 2.0.10. Use int for older SDL
+// versions.
+typedef int SDL_PixelFormatEnum;
+#endif
+
 static SDL_PixelFormatEnum
 to_sdl_pixel_format(enum AVPixelFormat fmt) {
     switch (fmt) {
@@ -172,7 +178,9 @@ to_sdl_pixel_format(enum AVPixelFormat fmt) {
         case AV_PIX_FMT_BGR565BE: return SDL_PIXELFORMAT_BGR565;
         case AV_PIX_FMT_BGR555BE: return SDL_PIXELFORMAT_BGR555;
         case AV_PIX_FMT_RGB444BE: return SDL_PIXELFORMAT_RGB444;
+#if SDL_VERSION_ATLEAST(2, 0, 12)
         case AV_PIX_FMT_BGR444BE: return SDL_PIXELFORMAT_BGR444;
+#endif
         case AV_PIX_FMT_PAL8: return SDL_PIXELFORMAT_INDEX8;
         default: return SDL_PIXELFORMAT_UNKNOWN;
     }

app/src/server.c

@@ -234,6 +234,12 @@ connect_to_server(struct sc_server *server, uint32_t attempts, sc_tick delay) {
 
             net_close(socket);
         }
+
+        if (sc_intr_is_interrupted(&server->intr)) {
+            // Stop immediately
+            break;
+        }
+
         if (attempts) {
             sc_mutex_lock(&server->mutex);
             sc_tick deadline = sc_tick_now() + delay;

app/src/sys/win/process.c

@@ -26,6 +26,8 @@ sc_process_execute_p(const char *const argv[], HANDLE *handle,
                      HANDLE *pin, HANDLE *pout, HANDLE *perr) {
     enum sc_process_result ret = SC_PROCESS_ERROR_GENERIC;
 
+    bool inherit_handles = pin || pout || perr;
+
     SECURITY_ATTRIBUTES sa;
     sa.nLength = sizeof(SECURITY_ATTRIBUTES);
     sa.lpSecurityDescriptor = NULL;
@@ -69,7 +71,7 @@ sc_process_execute_p(const char *const argv[], HANDLE *handle,
     PROCESS_INFORMATION pi;
     memset(&si, 0, sizeof(si));
     si.cb = sizeof(si);
-    if (pin || pout || perr) {
+    if (inherit_handles) {
         si.dwFlags = STARTF_USESTDHANDLES;
         if (pin) {
             si.hStdInput = stdin_read_handle;
@@ -95,8 +97,8 @@ sc_process_execute_p(const char *const argv[], HANDLE *handle,
         goto error_close_stderr;
     }
 
-    if (!CreateProcessW(NULL, wide, NULL, NULL, TRUE, 0, NULL, NULL, &si,
-                        &pi)) {
+    if (!CreateProcessW(NULL, wide, NULL, NULL, inherit_handles, 0, NULL, NULL,
+                        &si, &pi)) {
         free(wide);
         *handle = NULL;
 

app/src/util/net.c

@@ -96,6 +96,27 @@ net_perror(const char *s) {
 sc_socket
 net_socket(void) {
     sc_raw_socket raw_sock = socket(AF_INET, SOCK_STREAM, 0);
+
+#ifdef _WIN32
+    /* To be able to communicate with a child process via stdin, stdout and
+     * stderr, the CreateProcess() parameter bInheritHandles must be set to
+     * TRUE. But this causes *all* handles to be inherited, including sockets.
+     *
+     * One possibility could be to use an extended API to set extra attributes
+     * on process creation:
+     *  - <https://stackoverflow.com/a/28185363/1987178>
+     *  - <https://devblogs.microsoft.com/oldnewthing/20111216-00/?p=8873>
+     * But it seems that this API is not available on MinGW (it does not
+     * compile).
+     *
+     * As an alternative, explicitly mark all sockets as non-inheritable.
+     */
+    if (!SetHandleInformation((HANDLE) raw_sock, HANDLE_FLAG_INHERIT, 0)) {
+        closesocket(raw_sock);
+        return SC_SOCKET_NONE;
+    }
+#endif
+
     sc_socket sock = wrap(raw_sock);
     if (sock == SC_SOCKET_NONE) {
         net_perror("socket");

install_release.sh

@@ -2,8 +2,8 @@
 set -e
 
 BUILDDIR=build-auto
-PREBUILT_SERVER_URL=https://github.com/Genymobile/scrcpy/releases/download/v1.19/scrcpy-server-v1.19
-PREBUILT_SERVER_SHA256=876f9322182e6aac6a58db1334f4225855ef3a17eaebc80aab6601d9d1ecb867
+PREBUILT_SERVER_URL=https://github.com/Genymobile/scrcpy/releases/download/v1.20/scrcpy-server-v1.20
+PREBUILT_SERVER_SHA256=b20aee4951f99b060c4a44000ba94de973f9604758ef62beb253b371aad3df34
 
 echo "[scrcpy] Downloading prebuilt server..."
 wget "$PREBUILT_SERVER_URL" -O scrcpy-server