Dockerfile

Use BT.709 color space for AVCOL_SPC_RGB.

Refs #1868 comment <https://github.com/Genymobile/scrcpy/issues/1868#issuecomment-3293917796>

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

.github/workflows/release.yml

@@ -72,16 +72,30 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
+        # Same as build-linux-x86_64
       - name: Install dependencies
         run: |
           sudo apt update
-          sudo apt install -y meson ninja-build nasm ffmpeg libsdl2-2.0-0 \
-             libsdl2-dev libavcodec-dev libavdevice-dev libavformat-dev \
-             libavutil-dev libswresample-dev libusb-1.0-0 libusb-1.0-0-dev \
-             libv4l-dev
+          sudo apt install -y meson ninja-build nasm ffmpeg libavcodec-dev \
+             libavdevice-dev libavformat-dev libavutil-dev libswresample-dev \
+             libusb-1.0-0 libusb-1.0-0-dev libv4l-dev \
+             libasound2-dev libpulse-dev \
+             libaudio-dev libfribidi-dev libjack-dev libsndio-dev libx11-dev libxext-dev \
+             libxrandr-dev libxcursor-dev libxfixes-dev libxi-dev libxss-dev libxtst-dev \
+             libxkbcommon-dev libdrm-dev libgbm-dev libgl1-mesa-dev libgles2-mesa-dev \
+             libegl1-mesa-dev libdbus-1-dev libibus-1.0-dev libudev-dev libthai-dev \
+             libpipewire-0.3-dev libwayland-dev libdecor-0-dev liburing-dev
+
+        # SDL3 is not available in Ubuntu yet
+      - name: Install SDL3
+        run: |
+          app/deps/sdl.sh linux native shared
 
       - name: Test
-        run: release/test_client.sh
+        run: |
+          export PKG_CONFIG_PATH="$PWD"/app/deps/work/install/linux-native-shared/lib/pkgconfig
+          export LD_LIBRARY_PATH="$PWD"/app/deps/work/install/linux-native-shared/lib
+          release/test_client.sh
 
   build-linux-x86_64:
     runs-on: ubuntu-22.04
@@ -98,13 +112,19 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
+        # https://wiki.libsdl.org/SDL3/README-linux#build-dependencies
       - name: Install dependencies
         run: |
           sudo apt update
-          sudo apt install -y meson ninja-build nasm ffmpeg libsdl2-2.0-0 \
-             libsdl2-dev libavcodec-dev libavdevice-dev libavformat-dev \
-             libavutil-dev libswresample-dev libusb-1.0-0 libusb-1.0-0-dev \
-             libv4l-dev
+          sudo apt install -y meson ninja-build nasm ffmpeg libavcodec-dev \
+             libavdevice-dev libavformat-dev libavutil-dev libswresample-dev \
+             libusb-1.0-0 libusb-1.0-0-dev libv4l-dev \
+             libasound2-dev libpulse-dev \
+             libaudio-dev libfribidi-dev libjack-dev libsndio-dev libx11-dev libxext-dev \
+             libxrandr-dev libxcursor-dev libxfixes-dev libxi-dev libxss-dev libxtst-dev \
+             libxkbcommon-dev libdrm-dev libgbm-dev libgl1-mesa-dev libgles2-mesa-dev \
+             libegl1-mesa-dev libdbus-1-dev libibus-1.0-dev libudev-dev libthai-dev \
+             libpipewire-0.3-dev libwayland-dev libdecor-0-dev liburing-dev
 
       - name: Build
         run: release/build_linux.sh x86_64
@@ -132,9 +152,7 @@ jobs:
       - name: Install dependencies
         run: |
           sudo apt update
-          sudo apt install -y meson ninja-build nasm ffmpeg libsdl2-2.0-0 \
-             libsdl2-dev libavcodec-dev libavdevice-dev libavformat-dev \
-             libavutil-dev libswresample-dev libusb-1.0-0 libusb-1.0-0-dev \
+          sudo apt install -y meson ninja-build nasm \
              mingw-w64 mingw-w64-tools libz-mingw-w64-dev
 
       - name: Build
@@ -163,9 +181,7 @@ jobs:
       - name: Install dependencies
         run: |
           sudo apt update
-          sudo apt install -y meson ninja-build nasm ffmpeg libsdl2-2.0-0 \
-             libsdl2-dev libavcodec-dev libavdevice-dev libavformat-dev \
-             libavutil-dev libswresample-dev libusb-1.0-0 libusb-1.0-0-dev \
+          sudo apt install -y meson ninja-build nasm \
              mingw-w64 mingw-w64-tools libz-mingw-w64-dev
 
       - name: Build
@@ -202,8 +218,7 @@ jobs:
 
       - name: Install dependencies
         run: |
-            brew install meson ninja nasm libiconv zlib automake autoconf \
-                libtool
+            brew install meson nasm libiconv zlib automake autoconf libtool
 
       - name: Build
         env:
@@ -230,7 +245,7 @@ jobs:
           path: release/work/build-macos-aarch64/dist-tar/
 
   build-macos-x86_64:
-    runs-on: macos-13
+    runs-on: macos-15-intel
     steps:
       - name: Check architecture
         run: |
@@ -245,7 +260,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install dependencies
-        run: brew install meson ninja nasm libiconv zlib automake
+        run: brew install meson nasm libiconv zlib automake
              # autoconf and libtool are already installed on macos-13
 
       - name: Build

FAQ.md

@@ -166,14 +166,13 @@ Rebooting the device is necessary once this option is set.
 
 ### Special characters do not work
 
-The default text injection method is [limited to ASCII characters][text-input].
-A trick allows to also inject some [accented characters][accented-characters],
+The default text injection method is limited to ASCII characters. A trick allows
+to also inject some [accented characters][accented-characters],
 but that's all. See [#37].
 
 To avoid the problem, [change the keyboard mode to simulate a physical
 keyboard][hid].
 
-[text-input]: https://github.com/Genymobile/scrcpy/issues?q=is%3Aopen+is%3Aissue+label%3Aunicode
 [accented-characters]: https://blog.rom1v.com/2018/03/introducing-scrcpy/#handle-accented-characters
 [#37]: https://github.com/Genymobile/scrcpy/issues/37
 [hid]: doc/keyboard.md#physical-keyboard-simulation

README.md

@@ -2,7 +2,7 @@
 source for the project. Do not download releases from random websites, even if
 their name contains `scrcpy`.**
 
-# scrcpy (v3.2)
+# scrcpy (v3.3.4)
 
 <img src="app/data/icon.svg" width="128" height="128" alt="scrcpy" align="right" />
 
@@ -129,7 +129,7 @@ Here are just some common examples.
     scrcpy --otg
     ```
 
- - Control the device using gamepad controllers plugged into the computer:
+ - Control the device using gamepads plugged into the computer:
 
     ```bash
     scrcpy --gamepad=uhid
@@ -207,7 +207,7 @@ work][donate]:
 
 [donate]: https://blog.rom1v.com/about/#support-my-open-source-work
 
-## Licence
+## License
 
     Copyright (C) 2018 Genymobile
     Copyright (C) 2018-2025 Romain Vimont

app/deps/_init

@@ -1,10 +1,9 @@
-#!/usr/bin/env bash
 # This file is intended to be sourced by other scripts, not executed
 
 process_args() {
     if [[ $# != 3 ]]
     then
-        # <host>: win32 or win64
+        # <host>: linux, macos, win32 or win64
         # <build_type>: native or cross
         # <link_type>: static or shared
         echo "Syntax: $0 <host> <build_type> <link_type>" >&2
@@ -12,8 +11,8 @@ process_args() {
     fi
 
     HOST="$1"
-    BUILD_TYPE="$2" # native or cross
-    LINK_TYPE="$3" # static or shared
+    BUILD_TYPE="$2"
+    LINK_TYPE="$3"
     DIRNAME="$HOST-$BUILD_TYPE-$LINK_TYPE"
 
     if [[ "$BUILD_TYPE" != native && "$BUILD_TYPE" != cross ]]

app/deps/adb_linux.sh

@@ -1,13 +1,13 @@
 #!/usr/bin/env bash
 set -ex
-DEPS_DIR=$(dirname ${BASH_SOURCE[0]})
-cd "$DEPS_DIR"
-. common
+. $(dirname ${BASH_SOURCE[0]})/_init "$@"
 
-VERSION=35.0.2
-FILENAME=platform-tools_r$VERSION-linux.zip
-PROJECT_DIR=platform-tools-$VERSION-linux
-SHA256SUM=acfdcccb123a8718c46c46c059b2f621140194e5ec1ac9d81715be3d6ab6cd0a
+VERSION=36.0.0
+URL="https://dl.google.com/android/repository/platform-tools_r$VERSION-linux.zip"
+SHA256SUM=0ead642c943ffe79701fccca8f5f1c69c4ce4f43df2eefee553f6ccb27cbfbe8
+
+PROJECT_DIR="platform-tools-$VERSION-linux"
+FILENAME="$PROJECT_DIR.zip"
 
 cd "$SOURCES_DIR"
 
@@ -15,7 +15,7 @@ if [[ -d "$PROJECT_DIR" ]]
 then
     echo "$PWD/$PROJECT_DIR" found
 else
-    get_file "https://dl.google.com/android/repository/$FILENAME" "$FILENAME" "$SHA256SUM"
+    get_file "$URL" "$FILENAME" "$SHA256SUM"
     mkdir -p "$PROJECT_DIR"
     cd "$PROJECT_DIR"
     ZIP_PREFIX=platform-tools

app/deps/adb_macos.sh

@@ -1,13 +1,13 @@
 #!/usr/bin/env bash
 set -ex
-DEPS_DIR=$(dirname ${BASH_SOURCE[0]})
-cd "$DEPS_DIR"
-. common
+. $(dirname ${BASH_SOURCE[0]})/_init "$@"
 
-VERSION=35.0.2
-FILENAME=platform-tools_r$VERSION-darwin.zip
-PROJECT_DIR=platform-tools-$VERSION-darwin
-SHA256SUM=1820078db90bf21628d257ff052528af1c61bb48f754b3555648f5652fa35d78
+VERSION=36.0.0
+URL="https://dl.google.com/android/repository/platform-tools_r$VERSION-darwin.zip"
+SHA256SUM=d3e9fa1df3345cf728586908426615a60863d2632f73f1ce14f0f1349ef000fd
+
+PROJECT_DIR="platform-tools-$VERSION-darwin"
+FILENAME="$PROJECT_DIR.zip"
 
 cd "$SOURCES_DIR"
 
@@ -15,7 +15,7 @@ if [[ -d "$PROJECT_DIR" ]]
 then
     echo "$PWD/$PROJECT_DIR" found
 else
-    get_file "https://dl.google.com/android/repository/$FILENAME" "$FILENAME" "$SHA256SUM"
+    get_file "$URL" "$FILENAME" "$SHA256SUM"
     mkdir -p "$PROJECT_DIR"
     cd "$PROJECT_DIR"
     ZIP_PREFIX=platform-tools

app/deps/adb_windows.sh

@@ -1,13 +1,13 @@
 #!/usr/bin/env bash
 set -ex
-DEPS_DIR=$(dirname ${BASH_SOURCE[0]})
-cd "$DEPS_DIR"
-. common
+. $(dirname ${BASH_SOURCE[0]})/_init "$@"
 
-VERSION=35.0.2
-FILENAME=platform-tools_r$VERSION-win.zip
-PROJECT_DIR=platform-tools-$VERSION-windows
-SHA256SUM=2975a3eac0b19182748d64195375ad056986561d994fffbdc64332a516300bb9
+VERSION=36.0.0
+URL="https://dl.google.com/android/repository/platform-tools_r$VERSION-win.zip"
+SHA256SUM=12c2841f354e92a0eb2fd7bf6f0f9bf8538abce7bd6b060ac8349d6f6a61107c
+
+PROJECT_DIR="platform-tools-$VERSION-windows"
+FILENAME="$PROJECT_DIR.zip"
 
 cd "$SOURCES_DIR"
 
@@ -15,7 +15,7 @@ if [[ -d "$PROJECT_DIR" ]]
 then
     echo "$PWD/$PROJECT_DIR" found
 else
-    get_file "https://dl.google.com/android/repository/$FILENAME" "$FILENAME" "$SHA256SUM"
+    get_file "$URL" "$FILENAME" "$SHA256SUM"
     mkdir -p "$PROJECT_DIR"
     cd "$PROJECT_DIR"
     ZIP_PREFIX=platform-tools

app/deps/dav1d.sh

@@ -1,22 +1,22 @@
 #!/usr/bin/env bash
 set -ex
-DEPS_DIR=$(dirname ${BASH_SOURCE[0]})
-cd "$DEPS_DIR"
-. common
+. $(dirname ${BASH_SOURCE[0]})/_init
 process_args "$@"
 
 VERSION=1.5.0
-FILENAME=dav1d-$VERSION.tar.gz
-PROJECT_DIR=dav1d-$VERSION
+URL="https://code.videolan.org/videolan/dav1d/-/archive/$VERSION/dav1d-$VERSION.tar.gz"
 SHA256SUM=78b15d9954b513ea92d27f39362535ded2243e1b0924fde39f37a31ebed5f76b
 
+PROJECT_DIR="dav1d-$VERSION"
+FILENAME="$PROJECT_DIR.tar.gz"
+
 cd "$SOURCES_DIR"
 
 if [[ -d "$PROJECT_DIR" ]]
 then
     echo "$PWD/$PROJECT_DIR" found
 else
-    get_file "https://code.videolan.org/videolan/dav1d/-/archive/$VERSION/$FILENAME" "$FILENAME" "$SHA256SUM"
+    get_file "$URL" "$FILENAME" "$SHA256SUM"
     tar xf "$FILENAME"  # First level directory is "$PROJECT_DIR"
 fi
 

app/deps/ffmpeg.sh

@@ -1,22 +1,22 @@
 #!/usr/bin/env bash
 set -ex
-DEPS_DIR=$(dirname ${BASH_SOURCE[0]})
-cd "$DEPS_DIR"
-. common
+. $(dirname ${BASH_SOURCE[0]})/_init
 process_args "$@"
 
 VERSION=7.1.1
-FILENAME=ffmpeg-$VERSION.tar.xz
-PROJECT_DIR=ffmpeg-$VERSION
+URL="https://ffmpeg.org/releases/ffmpeg-$VERSION.tar.xz"
 SHA256SUM=733984395e0dbbe5c046abda2dc49a5544e7e0e1e2366bba849222ae9e3a03b1
 
+PROJECT_DIR="ffmpeg-$VERSION"
+FILENAME="$PROJECT_DIR.tar.xz"
+
 cd "$SOURCES_DIR"
 
 if [[ -d "$PROJECT_DIR" ]]
 then
     echo "$PWD/$PROJECT_DIR" found
 else
-    get_file "https://ffmpeg.org/releases/$FILENAME" "$FILENAME" "$SHA256SUM"
+    get_file "$URL" "$FILENAME" "$SHA256SUM"
     tar xf "$FILENAME"  # First level directory is "$PROJECT_DIR"
 fi
 

app/deps/libusb.sh

@@ -1,14 +1,14 @@
 #!/usr/bin/env bash
 set -ex
-DEPS_DIR=$(dirname ${BASH_SOURCE[0]})
-cd "$DEPS_DIR"
-. common
+. $(dirname ${BASH_SOURCE[0]})/_init
 process_args "$@"
 
-VERSION=1.0.28
-FILENAME=libusb-$VERSION.tar.gz
-PROJECT_DIR=libusb-$VERSION
-SHA256SUM=378b3709a405065f8f9fb9f35e82d666defde4d342c2a1b181a9ac134d23c6fe
+VERSION=1.0.29
+URL="https://github.com/libusb/libusb/archive/refs/tags/v$VERSION.tar.gz"
+SHA256SUM=7c2dd39c0b2589236e48c93247c986ae272e27570942b4163cb00a060fcf1b74
+
+PROJECT_DIR="libusb-$VERSION"
+FILENAME="$PROJECT_DIR.tar.gz"
 
 cd "$SOURCES_DIR"
 
@@ -16,7 +16,7 @@ if [[ -d "$PROJECT_DIR" ]]
 then
     echo "$PWD/$PROJECT_DIR" found
 else
-    get_file "https://github.com/libusb/libusb/archive/refs/tags/v$VERSION.tar.gz" "$FILENAME" "$SHA256SUM"
+    get_file "$URL" "$FILENAME" "$SHA256SUM"
     tar xf "$FILENAME"  # First level directory is "$PROJECT_DIR"
 fi
 

app/deps/patches/SDL-pipewire-Ensure-that-the-correct-struct-is-used-for-.patch

@@ -1,33 +0,0 @@
-From 6be87ceb33a9aad3bf5204bb13b3a5e8b498fd26 Mon Sep 17 00:00:00 2001
-From: Neal Gompa <neal@gompa.dev>
-Date: Mon, 10 Feb 2025 05:00:56 -0500
-Subject: [PATCH] pipewire: Ensure that the correct struct is used for
- enumeration APIs
-
-PipeWire now requires the correct struct type is used, otherwise
-it will fail to compile.
-
-Reference: https://gitlab.freedesktop.org/pipewire/pipewire/-/commit/188d920733f0791413d3386e5536ee7377f71b2f
-
-Fixes: https://github.com/libsdl-org/SDL/issues/12224
-(cherry picked from commit d35bef64e913dd7d5dd3153a4b61f10ef837dad6)
----
- src/audio/pipewire/SDL_pipewire.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/src/audio/pipewire/SDL_pipewire.c b/src/audio/pipewire/SDL_pipewire.c
-index 889e05decb..5d1bfc28de 100644
---- a/src/audio/pipewire/SDL_pipewire.c
-+++ b/src/audio/pipewire/SDL_pipewire.c
-@@ -590,7 +590,7 @@ static void node_event_info(void *object, const struct pw_node_info *info)
- 
-         /* Need to parse the parameters to get the sample rate */
-         for (i = 0; i < info->n_params; ++i) {
--            pw_node_enum_params(node->proxy, 0, info->params[i].id, 0, 0, NULL);
-+            pw_node_enum_params((struct pw_node*)node->proxy, 0, info->params[i].id, 0, 0, NULL);
-         }
- 
-         hotplug_core_sync(node);
--- 
-2.49.0
-

app/deps/sdl.sh

@@ -1,14 +1,14 @@
 #!/usr/bin/env bash
 set -ex
-DEPS_DIR=$(dirname ${BASH_SOURCE[0]})
-cd "$DEPS_DIR"
-. common
+. $(dirname ${BASH_SOURCE[0]})/_init
 process_args "$@"
 
-VERSION=2.32.2
-FILENAME=SDL-$VERSION.tar.gz
-PROJECT_DIR=SDL-release-$VERSION
-SHA256SUM=f2c7297ae7b3d3910a8b131e1e2a558fdd6d1a4443d5e345374d45cadfcb05a4
+VERSION=3.4.0
+URL="https://github.com/libsdl-org/SDL/archive/refs/tags/release-$VERSION.tar.gz"
+SHA256SUM=9614b9696abc4597ffce6b888829dc6537ae500423474c342ac4a67222c5654c
+
+PROJECT_DIR="sdl-$VERSION"
+FILENAME="$PROJECT_DIR.tar.gz"
 
 cd "$SOURCES_DIR"
 
@@ -16,9 +16,9 @@ if [[ -d "$PROJECT_DIR" ]]
 then
     echo "$PWD/$PROJECT_DIR" found
 else
-    get_file "https://github.com/libsdl-org/SDL/archive/refs/tags/release-$VERSION.tar.gz" "$FILENAME" "$SHA256SUM"
-    tar xf "$FILENAME"  # First level directory is "$PROJECT_DIR"
-    patch -d "$PROJECT_DIR" -p1 < "$PATCHES_DIR"/SDL-pipewire-Ensure-that-the-correct-struct-is-used-for-.patch
+    get_file "$URL" "$FILENAME" "$SHA256SUM"
+    tar xf "$FILENAME"  # First level directory is "SDL-release-$VERSION"
+    mv "SDL-release-$VERSION" "$PROJECT_DIR"
 fi
 
 mkdir -p "$BUILD_DIR/$PROJECT_DIR"
@@ -29,52 +29,56 @@ export CXXFLAGS="$CFLAGS"
 
 if [[ -d "$DIRNAME" ]]
 then
-    echo "'$PWD/$HDIRNAME' already exists, not reconfigured"
+    echo "'$PWD/$DIRNAME' already exists, not reconfigured"
     cd "$DIRNAME"
 else
     mkdir "$DIRNAME"
     cd "$DIRNAME"
 
     conf=(
-        --prefix="$INSTALL_DIR/$DIRNAME"
+        -DCMAKE_INSTALL_PREFIX="$INSTALL_DIR/$DIRNAME"
+        -DSDL_TESTS=OFF
     )
 
     if [[ "$HOST" == linux ]]
     then
         conf+=(
-            --enable-video-wayland
-            --enable-video-x11
+            -DSDL_WAYLAND=ON
+            -DSDL_X11=ON
         )
     fi
 
     if [[ "$LINK_TYPE" == static ]]
     then
         conf+=(
-            --enable-static
-            --disable-shared
+            -DBUILD_SHARED_LIBS=OFF
         )
     else
         conf+=(
-            --disable-static
-            --enable-shared
+            -DBUILD_SHARED_LIBS=ON
         )
     fi
 
     if [[ "$BUILD_TYPE" == cross ]]
     then
+        if [[ "$HOST" = win32 ]]
+        then
+            TOOLCHAIN_FILENAME="cmake-toolchain-mingw64-i686.cmake"
+        elif [[ "$HOST" = win64 ]]
+        then
+            TOOLCHAIN_FILENAME="cmake-toolchain-mingw64-x86_64.cmake"
+        else
+            echo "Unsupported cross-build to host: $HOST" >&2
+            exit 1
+        fi
+
         conf+=(
-            --host="$HOST_TRIPLET"
+            -DCMAKE_TOOLCHAIN_FILE="$SOURCES_DIR/$PROJECT_DIR/build-scripts/$TOOLCHAIN_FILENAME"
         )
     fi
 
-    "$SOURCES_DIR/$PROJECT_DIR"/configure "${conf[@]}"
+    cmake "$SOURCES_DIR/$PROJECT_DIR" "${conf[@]}"
 fi
 
-make -j
-# There is no "make install-strip"
-make install
-# Strip manually
-if [[ "$LINK_TYPE" == shared && "$HOST" == win* ]]
-then
-    ${HOST_TRIPLET}-strip "$INSTALL_DIR/$DIRNAME/bin/SDL2.dll"
-fi
+cmake --build .
+cmake --install .

app/meson.build

@@ -57,6 +57,7 @@ src = [
     'src/util/process.c',
     'src/util/process_intr.c',
     'src/util/rand.c',
+    'src/util/sdl.c',
     'src/util/strbuf.c',
     'src/util/str.c',
     'src/util/term.c',
@@ -117,7 +118,7 @@ dependencies = [
     dependency('libavcodec', version: '>= 57.37', static: static),
     dependency('libavutil', static: static),
     dependency('libswresample', static: static),
-    dependency('sdl2', version: '>= 2.0.5', static: static),
+    dependency('sdl3', version: '>= 3.2.0', static: static),
 ]
 
 if v4l2_support
@@ -275,7 +276,7 @@ if get_option('buildtype') == 'debug'
         exe = executable(t[0], sources,
                          include_directories: src_dir,
                          dependencies: dependencies,
-                         c_args: ['-DSDL_MAIN_HANDLED', '-DSC_TEST'])
+                         c_args: ['-DSC_TEST'])
         test(t[0], exe)
     endforeach
 endif

app/scrcpy-windows.rc

@@ -13,7 +13,7 @@ BEGIN
       VALUE "LegalCopyright", "Romain Vimont, Genymobile"
       VALUE "OriginalFilename", "scrcpy.exe"
       VALUE "ProductName", "scrcpy"
-      VALUE "ProductVersion", "3.2"
+      VALUE "ProductVersion", "3.3.4"
     END
   END
   BLOCK "VarFileInfo"

app/src/adb/adb.c

@@ -103,14 +103,14 @@ argv_to_string(const char *const *argv, char *buf, size_t bufsize) {
 
 static void
 show_adb_installation_msg(void) {
-#ifndef __WINDOWS__
+#ifndef _WIN32
     static const struct {
         const char *binary;
         const char *command;
     } pkg_managers[] = {
         {"apt", "apt install adb"},
         {"apt-get", "apt-get install adb"},
-        {"brew", "brew cask install android-platform-tools"},
+        {"brew", "brew install --cask android-platform-tools"},
         {"dnf", "dnf install android-tools"},
         {"emerge", "emerge dev-util/android-tools"},
         {"pacman", "pacman -S android-tools"},
@@ -331,7 +331,7 @@ sc_adb_reverse_remove(struct sc_intr *intr, const char *serial,
 bool
 sc_adb_push(struct sc_intr *intr, const char *serial, const char *local,
             const char *remote, unsigned flags) {
-#ifdef __WINDOWS__
+#ifdef _WIN32
     // Windows will parse the string, so the paths must be quoted
     // (see sys/win/command.c)
     local = sc_str_quote(local);
@@ -351,7 +351,7 @@ sc_adb_push(struct sc_intr *intr, const char *serial, const char *local,
 
     sc_pid pid = sc_adb_execute(argv, flags);
 
-#ifdef __WINDOWS__
+#ifdef _WIN32
     free((void *) remote);
     free((void *) local);
 #endif
@@ -362,7 +362,7 @@ sc_adb_push(struct sc_intr *intr, const char *serial, const char *local,
 bool
 sc_adb_install(struct sc_intr *intr, const char *serial, const char *local,
                unsigned flags) {
-#ifdef __WINDOWS__
+#ifdef _WIN32
     // Windows will parse the string, so the local name must be quoted
     // (see sys/win/command.c)
     local = sc_str_quote(local);
@@ -377,7 +377,7 @@ sc_adb_install(struct sc_intr *intr, const char *serial, const char *local,
 
     sc_pid pid = sc_adb_execute(argv, flags);
 
-#ifdef __WINDOWS__
+#ifdef _WIN32
     free((void *) local);
 #endif
 

app/src/audio_player.c

@@ -1,23 +1,40 @@
 #include "audio_player.h"
 
 #include "util/log.h"
+#include "SDL3/SDL_hints.h"
 
 /** Downcast frame_sink to sc_audio_player */
 #define DOWNCAST(SINK) container_of(SINK, struct sc_audio_player, frame_sink)
 
-#define SC_SDL_SAMPLE_FMT AUDIO_F32
+#define SC_SDL_SAMPLE_FMT SDL_AUDIO_F32LE
 
 static void SDLCALL
-sc_audio_player_sdl_callback(void *userdata, uint8_t *stream, int len_int) {
+sc_audio_player_stream_callback(void *userdata, SDL_AudioStream *stream,
+                                int additional_amount, int total_amount) {
+    (void) total_amount;
+
     struct sc_audio_player *ap = userdata;
 
-    assert(len_int > 0);
-    size_t len = len_int;
-
+    size_t len = additional_amount;
     assert(len % ap->audioreg.sample_size == 0);
-    uint32_t out_samples = len / ap->audioreg.sample_size;
 
-    sc_audio_regulator_pull(&ap->audioreg, stream, out_samples);
+    // The requested amount may exceed the internal aout_buffer size.
+    // In this (unlikely) case, send the data to the stream in multiple chunks.
+    while (len) {
+        size_t chunk_size = MIN(ap->aout_buffer_size, len);
+        uint32_t out_samples = chunk_size / ap->audioreg.sample_size;
+        sc_audio_regulator_pull(&ap->audioreg, ap->aout_buffer,
+                                out_samples);
+
+        assert(chunk_size <= len);
+        len -= chunk_size;
+        bool ok =
+            SDL_PutAudioStreamData(stream, ap->aout_buffer, chunk_size);
+        if (!ok) {
+            LOGW("Audio stream error: %s", SDL_GetError());
+            return;
+        }
+    }
 }
 
 static bool
@@ -61,23 +78,45 @@ sc_audio_player_frame_sink_open(struct sc_frame_sink *sink,
                                                        / SC_TICK_FREQ;
     assert(aout_samples <= 0xFFFF);
 
-    SDL_AudioSpec desired = {
-        .freq = ctx->sample_rate,
-        .format = SC_SDL_SAMPLE_FMT,
-        .channels = nb_channels,
-        .samples = aout_samples,
-        .callback = sc_audio_player_sdl_callback,
-        .userdata = ap,
-    };
-    SDL_AudioSpec obtained;
-
-    ap->device = SDL_OpenAudioDevice(NULL, 0, &desired, &obtained, 0);
-    if (!ap->device) {
-        LOGE("Could not open audio device: %s", SDL_GetError());
+    char str[5 + 1]; // max 65535
+    int r = snprintf(str, sizeof(str), "%" PRIu16, (uint16_t) aout_samples);
+    assert(r >= 0 && (size_t) r < sizeof(str));
+    (void) r;
+    if (!SDL_SetHint(SDL_HINT_AUDIO_DEVICE_SAMPLE_FRAMES, str)) {
+        LOGE("Could not set audio output buffer");
         sc_audio_regulator_destroy(&ap->audioreg);
         return false;
     }
 
+    // Make the buffer at least 1024 samples long (the hint is not always
+    // honored)
+    uint64_t aout_buffer_samples = MAX(1024, aout_samples);
+    ap->aout_buffer_size = aout_buffer_samples * sample_size;
+    ap->aout_buffer = malloc(ap->aout_buffer_size);
+    if (!ap->aout_buffer) {
+        sc_audio_regulator_destroy(&ap->audioreg);
+        return false;
+    }
+
+    SDL_AudioSpec spec = {
+        .freq = ctx->sample_rate,
+        .format = SC_SDL_SAMPLE_FMT,
+        .channels = nb_channels,
+    };
+
+    ap->stream = SDL_OpenAudioDeviceStream(SDL_AUDIO_DEVICE_DEFAULT_PLAYBACK,
+                                           &spec,
+                                           sc_audio_player_stream_callback, ap);
+    if (!ap->stream) {
+        LOGE("Could not open audio device: %s", SDL_GetError());
+        free(ap->aout_buffer);
+        sc_audio_regulator_destroy(&ap->audioreg);
+        return false;
+    }
+
+    ap->device = SDL_GetAudioStreamDevice(ap->stream);
+    assert(ap->device);
+
     // The thread calling open() is the thread calling push(), which fills the
     // audio buffer consumed by the SDL audio thread.
     ok = sc_thread_set_priority(SC_THREAD_PRIORITY_TIME_CRITICAL);
@@ -86,7 +125,14 @@ sc_audio_player_frame_sink_open(struct sc_frame_sink *sink,
         (void) ok; // We don't care if it worked, at least we tried
     }
 
-    SDL_PauseAudioDevice(ap->device, 0);
+    ok = SDL_ResumeAudioDevice(ap->device);
+    if (!ok) {
+        LOGE("Could not resume audio device: %s", SDL_GetError());
+        SDL_DestroyAudioStream(ap->stream);
+        free(ap->aout_buffer);
+        sc_audio_regulator_destroy(&ap->audioreg);
+        return false;
+    }
 
     return true;
 }
@@ -95,11 +141,16 @@ static void
 sc_audio_player_frame_sink_close(struct sc_frame_sink *sink) {
     struct sc_audio_player *ap = DOWNCAST(sink);
 
+    assert(ap->stream);
     assert(ap->device);
-    SDL_PauseAudioDevice(ap->device, 1);
-    SDL_CloseAudioDevice(ap->device);
+    SDL_PauseAudioDevice(ap->device);
+
+    // ap->device is owned by ap->stream
+    SDL_DestroyAudioStream(ap->stream);
 
     sc_audio_regulator_destroy(&ap->audioreg);
+
+    free(ap->aout_buffer);
 }
 
 void

app/src/audio_player.h

@@ -3,7 +3,7 @@
 
 #include "common.h"
 
-#include <SDL2/SDL_audio.h>
+#include <SDL3/SDL_audio.h>
 
 #include "audio_regulator.h"
 #include "trait/frame_sink.h"
@@ -22,7 +22,11 @@ struct sc_audio_player {
     // SDL audio output buffer size
     sc_tick output_buffer_duration;
 
-    SDL_AudioDeviceID device;
+    uint8_t *aout_buffer;
+    size_t aout_buffer_size;
+
+    SDL_AudioStream *stream;
+    SDL_AudioDeviceID device; // owned by the audio stream
     struct sc_audio_regulator audioreg;
 };
 

app/src/compat.h

@@ -6,7 +6,7 @@
 #include <libavcodec/version.h>
 #include <libavformat/version.h>
 #include <libavutil/version.h>
-#include <SDL2/SDL_version.h>
+#include <SDL3/SDL_version.h>
 
 #ifndef _WIN32
 # define PRIu64_ PRIu64
@@ -61,28 +61,6 @@
 # define SCRCPY_LAVC_HAS_CODECPAR_CODEC_SIDEDATA
 #endif
 
-#if SDL_VERSION_ATLEAST(2, 0, 6)
-// <https://github.com/libsdl-org/SDL/commit/d7a318de563125e5bb465b1000d6bc9576fbc6fc>
-# define SCRCPY_SDL_HAS_HINT_TOUCH_MOUSE_EVENTS
-#endif
-
-#if SDL_VERSION_ATLEAST(2, 0, 8)
-// <https://hg.libsdl.org/SDL/rev/dfde5d3f9781>
-# define SCRCPY_SDL_HAS_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR
-#endif
-
-#if SDL_VERSION_ATLEAST(2, 0, 16)
-# define SCRCPY_SDL_HAS_THREAD_PRIORITY_TIME_CRITICAL
-#endif
-
-#if SDL_VERSION_ATLEAST(2, 0, 18)
-# define SCRCPY_SDL_HAS_HINT_APP_NAME
-#endif
-
-#if SDL_VERSION_ATLEAST(2, 0, 14)
-# define SCRCPY_SDL_HAS_HINT_AUDIO_DEVICE_APP_NAME
-#endif
-
 #ifndef HAVE_STRDUP
 char *strdup(const char *s);
 #endif

app/src/control_msg.c

@@ -127,10 +127,14 @@ sc_control_msg_serialize(const struct sc_control_msg *msg, uint8_t *buf) {
             return 32;
         case SC_CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT:
             write_position(&buf[1], &msg->inject_scroll_event.position);
-            int16_t hscroll =
-                sc_float_to_i16fp(msg->inject_scroll_event.hscroll);
-            int16_t vscroll =
-                sc_float_to_i16fp(msg->inject_scroll_event.vscroll);
+            // Accept values in the range [-16, 16].
+            // Normalize to [-1, 1] in order to use sc_float_to_i16fp().
+            float hscroll_norm = msg->inject_scroll_event.hscroll / 16;
+            hscroll_norm = CLAMP(hscroll_norm, -1, 1);
+            float vscroll_norm = msg->inject_scroll_event.vscroll / 16;
+            vscroll_norm = CLAMP(vscroll_norm, -1, 1);
+            int16_t hscroll = sc_float_to_i16fp(hscroll_norm);
+            int16_t vscroll = sc_float_to_i16fp(vscroll_norm);
             sc_write16be(&buf[13], (uint16_t) hscroll);
             sc_write16be(&buf[15], (uint16_t) vscroll);
             sc_write32be(&buf[17], msg->inject_scroll_event.buttons);

app/src/device_msg.c

@@ -53,7 +53,7 @@ sc_device_msg_deserialize(const uint8_t *buf, size_t len,
             }
             uint16_t id = sc_read16be(&buf[1]);
             size_t size = sc_read16be(&buf[3]);
-            if (size < len - 5) {
+            if (size > len - 5) {
                 return 0; // not available
             }
             uint8_t *data = malloc(size);

app/src/display.c

@@ -6,14 +6,18 @@
 #include <libavutil/pixfmt.h>
 
 #include "util/log.h"
+#include "util/sdl.h"
 
 static bool
 sc_display_init_novideo_icon(struct sc_display *display,
                              SDL_Surface *icon_novideo) {
     assert(icon_novideo);
 
-    if (SDL_RenderSetLogicalSize(display->renderer,
-                                 icon_novideo->w, icon_novideo->h)) {
+    bool ok = SDL_SetRenderLogicalPresentation(display->renderer,
+                                               icon_novideo->w,
+                                               icon_novideo->h,
+                                        SDL_LOGICAL_PRESENTATION_LETTERBOX);
+    if (!ok) {
         LOGW("Could not set renderer logical size: %s", SDL_GetError());
         // don't fail
     }
@@ -31,16 +35,13 @@ sc_display_init_novideo_icon(struct sc_display *display,
 bool
 sc_display_init(struct sc_display *display, SDL_Window *window,
                 SDL_Surface *icon_novideo, bool mipmaps) {
-    display->renderer =
-        SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
+    display->renderer = SDL_CreateRenderer(window, NULL);
     if (!display->renderer) {
         LOGE("Could not create renderer: %s", SDL_GetError());
         return false;
     }
 
-    SDL_RendererInfo renderer_info;
-    int r = SDL_GetRendererInfo(display->renderer, &renderer_info);
-    const char *renderer_name = r ? NULL : renderer_info.name;
+    const char *renderer_name = SDL_GetRendererName(display->renderer);
     LOGI("Renderer: %s", renderer_name ? renderer_name : "(unknown)");
 
     display->mipmaps = false;
@@ -56,8 +57,11 @@ sc_display_init(struct sc_display *display, SDL_Window *window,
 #ifdef SC_DISPLAY_FORCE_OPENGL_CORE_PROFILE
         // Persuade macOS to give us something better than OpenGL 2.1.
         // If we create a Core Profile context, we get the best OpenGL version.
-        SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK,
-                            SDL_GL_CONTEXT_PROFILE_CORE);
+        bool ok = SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK,
+                                      SDL_GL_CONTEXT_PROFILE_CORE);
+        if (!ok) {
+            LOGW("Could not set a GL Core Profile Context");
+        }
 
         LOGD("Creating OpenGL Core Profile context");
         display->gl_context = SDL_GL_CreateContext(window);
@@ -94,14 +98,13 @@ sc_display_init(struct sc_display *display, SDL_Window *window,
     display->texture = NULL;
     display->pending.flags = 0;
     display->pending.frame = NULL;
-    display->has_frame = false;
 
     if (icon_novideo) {
         // Without video, set a static scrcpy icon as window content
         bool ok = sc_display_init_novideo_icon(display, icon_novideo);
         if (!ok) {
 #ifdef SC_DISPLAY_FORCE_OPENGL_CORE_PROFILE
-            SDL_GL_DeleteContext(display->gl_context);
+            SDL_GL_DestroyContext(display->gl_context);
 #endif
             SDL_DestroyRenderer(display->renderer);
             return false;
@@ -117,7 +120,7 @@ sc_display_destroy(struct sc_display *display) {
         av_frame_free(&display->pending.frame);
     }
 #ifdef SC_DISPLAY_FORCE_OPENGL_CORE_PROFILE
-    SDL_GL_DeleteContext(display->gl_context);
+    SDL_GL_DestroyContext(display->gl_context);
 #endif
     if (display->texture) {
         SDL_DestroyTexture(display->texture);
@@ -125,13 +128,63 @@ sc_display_destroy(struct sc_display *display) {
     SDL_DestroyRenderer(display->renderer);
 }
 
+static enum SDL_Colorspace
+sc_display_to_sdl_color_space(enum AVColorSpace color_space,
+                              enum AVColorRange color_range) {
+    bool full_range = color_range == AVCOL_RANGE_JPEG;
+
+    switch (color_space) {
+        case AVCOL_SPC_BT709:
+        case AVCOL_SPC_RGB:
+            return full_range ? SDL_COLORSPACE_BT709_FULL
+                              : SDL_COLORSPACE_BT709_LIMITED;
+        case AVCOL_SPC_BT470BG:
+        case AVCOL_SPC_SMPTE170M:
+            return full_range ? SDL_COLORSPACE_BT601_FULL
+                              : SDL_COLORSPACE_BT601_LIMITED;
+        case AVCOL_SPC_BT2020_NCL:
+        case AVCOL_SPC_BT2020_CL:
+            return full_range ? SDL_COLORSPACE_BT2020_FULL
+                              : SDL_COLORSPACE_BT2020_LIMITED;
+        default:
+            return SDL_COLORSPACE_JPEG;
+    }
+}
+
 static SDL_Texture *
 sc_display_create_texture(struct sc_display *display,
-                          struct sc_size size) {
+                          struct sc_size size, enum AVColorSpace color_space,
+                          enum AVColorRange color_range) {
+    SDL_PropertiesID props = SDL_CreateProperties();
+    if (!props) {
+        return NULL;
+    }
+
+    enum SDL_Colorspace sdl_color_space =
+        sc_display_to_sdl_color_space(color_space, color_range);
+
+    bool ok =
+        SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_FORMAT_NUMBER,
+                              SDL_PIXELFORMAT_YV12);
+    ok &= SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_ACCESS_NUMBER,
+                                SDL_TEXTUREACCESS_STREAMING);
+    ok &= SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_WIDTH_NUMBER,
+                                size.width);
+    ok &= SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_HEIGHT_NUMBER,
+                                size.height);
+    ok &= SDL_SetNumberProperty(props,
+                                SDL_PROP_TEXTURE_CREATE_COLORSPACE_NUMBER,
+                                sdl_color_space);
+
+    if (!ok) {
+        LOGE("Could not set texture properties");
+        SDL_DestroyProperties(props);
+        return NULL;
+    }
+
     SDL_Renderer *renderer = display->renderer;
-    SDL_Texture *texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_YV12,
-                                             SDL_TEXTUREACCESS_STREAMING,
-                                             size.width, size.height);
+    SDL_Texture *texture = SDL_CreateTextureWithProperties(renderer, props);
+    SDL_DestroyProperties(props);
     if (!texture) {
         LOGD("Could not create texture: %s", SDL_GetError());
         return NULL;
@@ -140,24 +193,49 @@ sc_display_create_texture(struct sc_display *display,
     if (display->mipmaps) {
         struct sc_opengl *gl = &display->gl;
 
-        SDL_GL_BindTexture(texture, NULL, NULL);
+        SDL_PropertiesID props = SDL_GetTextureProperties(texture);
+        if (!props) {
+            LOGE("Could not get texture properties: %s", SDL_GetError());
+            SDL_DestroyTexture(texture);
+            return NULL;
+        }
+
+        const char *renderer_name = SDL_GetRendererName(display->renderer);
+        const char *key = !renderer_name || !strcmp(renderer_name, "opengl")
+                        ? SDL_PROP_TEXTURE_OPENGL_TEXTURE_NUMBER
+                        : SDL_PROP_TEXTURE_OPENGLES2_TEXTURE_NUMBER;
+
+        int64_t texture_id = SDL_GetNumberProperty(props, key, 0);
+        SDL_DestroyProperties(props);
+        if (!texture_id) {
+            LOGE("Could not get texture id: %s", SDL_GetError());
+            SDL_DestroyTexture(texture);
+            return NULL;
+        }
+
+        assert(!(texture_id & ~0xFFFFFFFF)); // fits in uint32_t
+        display->texture_id = texture_id;
+        gl->BindTexture(GL_TEXTURE_2D, display->texture_id);
 
         // Enable trilinear filtering for downscaling
         gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
                           GL_LINEAR_MIPMAP_LINEAR);
         gl->TexParameterf(GL_TEXTURE_2D, GL_TEXTURE_LOD_BIAS, -1.f);
 
-        SDL_GL_UnbindTexture(texture);
+        gl->BindTexture(GL_TEXTURE_2D, 0);
     }
 
     return texture;
 }
 
 static inline void
-sc_display_set_pending_size(struct sc_display *display, struct sc_size size) {
+sc_display_set_pending_texture(struct sc_display *display,
+                               struct sc_size size,
+                               enum AVColorRange color_range) {
     assert(!display->texture);
-    display->pending.size = size;
-    display->pending.flags |= SC_DISPLAY_PENDING_FLAG_SIZE;
+    display->pending.texture.size = size;
+    display->pending.texture.color_range = color_range;
+    display->pending.flags |= SC_DISPLAY_PENDING_FLAG_TEXTURE;
 }
 
 static bool
@@ -170,6 +248,7 @@ sc_display_set_pending_frame(struct sc_display *display, const AVFrame *frame) {
         }
     }
 
+    av_frame_unref(display->pending.frame);
     int r = av_frame_ref(display->pending.frame, frame);
     if (r) {
         LOGE("Could not ref frame: %d", r);
@@ -181,22 +260,31 @@ sc_display_set_pending_frame(struct sc_display *display, const AVFrame *frame) {
     return true;
 }
 
+// Forward declaration
+static bool
+sc_display_update_texture_internal(struct sc_display *display,
+                                   const AVFrame *frame);
+
 static bool
 sc_display_apply_pending(struct sc_display *display) {
-    if (display->pending.flags & SC_DISPLAY_PENDING_FLAG_SIZE) {
+    if (display->pending.flags & SC_DISPLAY_PENDING_FLAG_TEXTURE) {
         assert(!display->texture);
         display->texture =
-            sc_display_create_texture(display, display->pending.size);
+            sc_display_create_texture(display,
+                                      display->pending.texture.size,
+                                      display->pending.texture.color_space,
+                                      display->pending.texture.color_range);
         if (!display->texture) {
             return false;
         }
 
-        display->pending.flags &= ~SC_DISPLAY_PENDING_FLAG_SIZE;
+        display->pending.flags &= ~SC_DISPLAY_PENDING_FLAG_TEXTURE;
     }
 
     if (display->pending.flags & SC_DISPLAY_PENDING_FLAG_FRAME) {
         assert(display->pending.frame);
-        bool ok = sc_display_update_texture(display, display->pending.frame);
+        bool ok = sc_display_update_texture_internal(display,
+                                                     display->pending.frame);
         if (!ok) {
             return false;
         }
@@ -209,15 +297,18 @@ sc_display_apply_pending(struct sc_display *display) {
 }
 
 static bool
-sc_display_set_texture_size_internal(struct sc_display *display,
-                                     struct sc_size size) {
+sc_display_prepare_texture_internal(struct sc_display *display,
+                                    struct sc_size size,
+                                    enum AVColorSpace color_space,
+                                    enum AVColorRange color_range) {
     assert(size.width && size.height);
 
     if (display->texture) {
         SDL_DestroyTexture(display->texture);
     }
 
-    display->texture = sc_display_create_texture(display, size);
+    display->texture =
+            sc_display_create_texture(display, size, color_space, color_range);
     if (!display->texture) {
         return false;
     }
@@ -227,10 +318,13 @@ sc_display_set_texture_size_internal(struct sc_display *display,
 }
 
 enum sc_display_result
-sc_display_set_texture_size(struct sc_display *display, struct sc_size size) {
-    bool ok = sc_display_set_texture_size_internal(display, size);
+sc_display_prepare_texture(struct sc_display *display, struct sc_size size,
+                           enum AVColorSpace color_space,
+                           enum AVColorRange color_range) {
+    bool ok = sc_display_prepare_texture_internal(display, size, color_space,
+                                                  color_range);
     if (!ok) {
-        sc_display_set_pending_size(display, size);
+        sc_display_set_pending_texture(display, size, color_range);
         return SC_DISPLAY_RESULT_PENDING;
 
     }
@@ -238,38 +332,25 @@ sc_display_set_texture_size(struct sc_display *display, struct sc_size size) {
     return SC_DISPLAY_RESULT_OK;
 }
 
-static SDL_YUV_CONVERSION_MODE
-sc_display_to_sdl_color_range(enum AVColorRange color_range) {
-    return color_range == AVCOL_RANGE_JPEG ? SDL_YUV_CONVERSION_JPEG
-                                           : SDL_YUV_CONVERSION_AUTOMATIC;
-}
-
 static bool
 sc_display_update_texture_internal(struct sc_display *display,
                                    const AVFrame *frame) {
-    if (!display->has_frame) {
-        // First frame
-        display->has_frame = true;
-
-        // Configure YUV color range conversion
-        SDL_YUV_CONVERSION_MODE sdl_color_range =
-            sc_display_to_sdl_color_range(frame->color_range);
-        SDL_SetYUVConversionMode(sdl_color_range);
-    }
-
-    int ret = SDL_UpdateYUVTexture(display->texture, NULL,
+    bool ok = SDL_UpdateYUVTexture(display->texture, NULL,
                                    frame->data[0], frame->linesize[0],
                                    frame->data[1], frame->linesize[1],
                                    frame->data[2], frame->linesize[2]);
-    if (ret) {
+    if (!ok) {
         LOGD("Could not update texture: %s", SDL_GetError());
         return false;
     }
 
     if (display->mipmaps) {
-        SDL_GL_BindTexture(display->texture, NULL, NULL);
-        display->gl.GenerateMipmap(GL_TEXTURE_2D);
-        SDL_GL_UnbindTexture(display->texture);
+        assert(display->texture_id);
+        struct sc_opengl *gl = &display->gl;
+
+        gl->BindTexture(GL_TEXTURE_2D, display->texture_id);
+        gl->GenerateMipmap(GL_TEXTURE_2D);
+        gl->BindTexture(GL_TEXTURE_2D, 0);
     }
 
     return true;
@@ -294,7 +375,7 @@ sc_display_update_texture(struct sc_display *display, const AVFrame *frame) {
 enum sc_display_result
 sc_display_render(struct sc_display *display, const SDL_Rect *geometry,
                   enum sc_orientation orientation) {
-    SDL_RenderClear(display->renderer);
+    sc_sdl_render_clear(display->renderer);
 
     if (display->pending.flags) {
         bool ok = sc_display_apply_pending(display);
@@ -307,8 +388,10 @@ sc_display_render(struct sc_display *display, const SDL_Rect *geometry,
     SDL_Texture *texture = display->texture;
 
     if (orientation == SC_ORIENTATION_0) {
-        int ret = SDL_RenderCopy(renderer, texture, NULL, geometry);
-        if (ret) {
+        SDL_FRect frect;
+        SDL_RectToFRect(geometry, &frect);
+        bool ok = SDL_RenderTexture(renderer, texture, NULL, &frect);
+        if (!ok) {
             LOGE("Could not render texture: %s", SDL_GetError());
             return SC_DISPLAY_RESULT_ERROR;
         }
@@ -316,29 +399,27 @@ sc_display_render(struct sc_display *display, const SDL_Rect *geometry,
         unsigned cw_rotation = sc_orientation_get_rotation(orientation);
         double angle = 90 * cw_rotation;
 
-        const SDL_Rect *dstrect = NULL;
-        SDL_Rect rect;
+        SDL_FRect frect;
         if (sc_orientation_is_swap(orientation)) {
-            rect.x = geometry->x + (geometry->w - geometry->h) / 2;
-            rect.y = geometry->y + (geometry->h - geometry->w) / 2;
-            rect.w = geometry->h;
-            rect.h = geometry->w;
-            dstrect = &rect;
+            frect.x = geometry->x + (geometry->w - geometry->h) / 2.f;
+            frect.y = geometry->y + (geometry->h - geometry->w) / 2.f;
+            frect.w = geometry->h;
+            frect.h = geometry->w;
         } else {
-            dstrect = geometry;
+            SDL_RectToFRect(geometry, &frect);
         }
 
-        SDL_RendererFlip flip = sc_orientation_is_mirror(orientation)
+        SDL_FlipMode flip = sc_orientation_is_mirror(orientation)
                               ? SDL_FLIP_HORIZONTAL : 0;
 
-        int ret = SDL_RenderCopyEx(renderer, texture, NULL, dstrect, angle,
-                                   NULL, flip);
-        if (ret) {
+        bool ok = SDL_RenderTextureRotated(renderer, texture, NULL, &frect,
+                                           angle, NULL, flip);
+        if (!ok) {
             LOGE("Could not render texture: %s", SDL_GetError());
             return SC_DISPLAY_RESULT_ERROR;
         }
     }
 
-    SDL_RenderPresent(display->renderer);
+    sc_sdl_render_present(display->renderer);
     return SC_DISPLAY_RESULT_OK;
 }

app/src/display.h

@@ -6,7 +6,7 @@
 #include <stdbool.h>
 #include <stdint.h>
 #include <libavutil/frame.h>
-#include <SDL2/SDL.h>
+#include <SDL3/SDL.h>
 
 #include "coords.h"
 #include "opengl.h"
@@ -22,20 +22,23 @@ struct sc_display {
 
     struct sc_opengl gl;
 #ifdef SC_DISPLAY_FORCE_OPENGL_CORE_PROFILE
-    SDL_GLContext *gl_context;
+    SDL_GLContext gl_context;
 #endif
 
     bool mipmaps;
+    uint32_t texture_id; // only set if mipmaps is enabled
 
     struct {
-#define SC_DISPLAY_PENDING_FLAG_SIZE 1
+#define SC_DISPLAY_PENDING_FLAG_TEXTURE 1
 #define SC_DISPLAY_PENDING_FLAG_FRAME 2
         int8_t flags;
-        struct sc_size size;
+        struct {
+            struct sc_size size;
+            enum AVColorSpace color_space;
+            enum AVColorRange color_range;
+        } texture;
         AVFrame *frame;
     } pending;
-
-    bool has_frame;
 };
 
 enum sc_display_result {
@@ -52,7 +55,9 @@ void
 sc_display_destroy(struct sc_display *display);
 
 enum sc_display_result
-sc_display_set_texture_size(struct sc_display *display, struct sc_size size);
+sc_display_prepare_texture(struct sc_display *display, struct sc_size size,
+                           enum AVColorSpace color_space,
+                           enum AVColorRange color_range);
 
 enum sc_display_result
 sc_display_update_texture(struct sc_display *display, const AVFrame *frame);

app/src/events.c

@@ -9,11 +9,8 @@ bool
 sc_push_event_impl(uint32_t type, const char *name) {
     SDL_Event event;
     event.type = type;
-    int ret = SDL_PushEvent(&event);
-    // ret < 0: error (queue full)
-    // ret == 0: event was filtered
-    // ret == 1: success
-    if (ret != 1) {
+    bool ok = SDL_PushEvent(&event);
+    if (!ok) {
         LOGE("Could not post %s event: %s", name, SDL_GetError());
         return false;
     }
@@ -30,34 +27,25 @@ sc_post_to_main_thread(sc_runnable_fn run, void *userdata) {
             .data2 = userdata,
         },
     };
-    int ret = SDL_PushEvent(&event);
-    // ret < 0: error (queue full)
-    // ret == 0: event was filtered
-    // ret == 1: success
-    if (ret != 1) {
-        if (ret == 0) {
-            // if ret == 0, this is expected on exit, log in debug mode
-            LOGD("Could not post runnable to main thread (filtered)");
-        } else {
-            assert(ret < 0);
-            LOGW("Could not post runnable to main thread: %s", SDL_GetError());
-        }
+    bool ok = SDL_PushEvent(&event);
+    if (!ok) {
+        LOGW("Could not post runnable to main thread: %s", SDL_GetError());
         return false;
     }
 
     return true;
 }
 
-static int SDLCALL
+static bool SDLCALL
 task_event_filter(void *userdata, SDL_Event *event) {
     (void) userdata;
 
     if (event->type == SC_EVENT_RUN_ON_MAIN_THREAD) {
         // Reject this event type from now on
-        return 0;
+        return false;
     }
 
-    return 1;
+    return true;
 }
 
 void

app/src/events.h

@@ -5,10 +5,10 @@
 
 #include <stdbool.h>
 #include <stdint.h>
-#include <SDL2/SDL_events.h>
+#include <SDL3/SDL_events.h>
 
 enum {
-    SC_EVENT_NEW_FRAME = SDL_USEREVENT,
+    SC_EVENT_NEW_FRAME = SDL_EVENT_USER,
     SC_EVENT_RUN_ON_MAIN_THREAD,
     SC_EVENT_DEVICE_DISCONNECTED,
     SC_EVENT_SERVER_CONNECTION_FAILED,
@@ -16,7 +16,6 @@ enum {
     SC_EVENT_USB_DEVICE_DISCONNECTED,
     SC_EVENT_DEMUXER_ERROR,
     SC_EVENT_RECORDER_ERROR,
-    SC_EVENT_SCREEN_INIT_SIZE,
     SC_EVENT_TIME_LIMIT_REACHED,
     SC_EVENT_CONTROLLER_ERROR,
     SC_EVENT_AOA_OPEN_ERROR,

app/src/hid/hid_keyboard.h

@@ -9,7 +9,7 @@
 #include "hid/hid_event.h"
 #include "input_events.h"
 
-// See "SDL2/SDL_scancode.h".
+// See "SDL3/SDL_scancode.h".
 // Maybe SDL_Keycode is used by most people, but SDL_Scancode is taken from USB
 // HID protocol.
 // 0x65 is Application, typically AT-101 Keyboard ends here.

app/src/hid/hid_mouse.c

@@ -3,8 +3,8 @@
 #include <stdint.h>
 
 // 1 byte for buttons + padding, 1 byte for X position, 1 byte for Y position,
-// 1 byte for wheel motion
-#define SC_HID_MOUSE_INPUT_SIZE 4
+// 1 byte for wheel motion, 1 byte for hozizontal scrolling
+#define SC_HID_MOUSE_INPUT_SIZE 5
 
 /**
  * Mouse descriptor from the specification:
@@ -75,6 +75,21 @@ static const uint8_t SC_HID_MOUSE_REPORT_DESC[] = {
     // Input (Data, Variable, Relative): 3 position bytes (X, Y, Wheel)
     0x81, 0x06,
 
+    // Usage Page (Consumer Page)
+    0x05, 0x0C,
+    // Usage(AC Pan)
+    0x0A, 0x38, 0x02,
+    // Logical Minimum (-127)
+    0x15, 0x81,
+    // Logical Maximum (127)
+    0x25, 0x7F,
+    // Report Size (8)
+    0x75, 0x08,
+    // Report Count (1)
+    0x95, 0x01,
+    // Input (Data, Variable, Relative): 1 byte (AC Pan)
+    0x81, 0x06,
+
     // End Collection
     0xC0,
 
@@ -151,6 +166,12 @@ sc_hid_buttons_from_buttons_state(uint8_t buttons_state) {
     return c;
 }
 
+void
+sc_hid_mouse_init(struct sc_hid_mouse *hid) {
+    hid->residual_hscroll = 0;
+    hid->residual_vscroll = 0;
+}
+
 void
 sc_hid_mouse_generate_input_from_motion(struct sc_hid_input *hid_input,
                                     const struct sc_mouse_motion_event *event) {
@@ -160,7 +181,8 @@ sc_hid_mouse_generate_input_from_motion(struct sc_hid_input *hid_input,
     data[0] = sc_hid_buttons_from_buttons_state(event->buttons_state);
     data[1] = CLAMP(event->xrel, -127, 127);
     data[2] = CLAMP(event->yrel, -127, 127);
-    data[3] = 0; // wheel coordinates only used for scrolling
+    data[3] = 0; // no vertical scrolling
+    data[4] = 0; // no horizontal scrolling
 }
 
 void
@@ -172,22 +194,42 @@ sc_hid_mouse_generate_input_from_click(struct sc_hid_input *hid_input,
     data[0] = sc_hid_buttons_from_buttons_state(event->buttons_state);
     data[1] = 0; // no x motion
     data[2] = 0; // no y motion
-    data[3] = 0; // wheel coordinates only used for scrolling
+    data[3] = 0; // no vertical scrolling
+    data[4] = 0; // no horizontal scrolling
 }
 
-void
-sc_hid_mouse_generate_input_from_scroll(struct sc_hid_input *hid_input,
+static int8_t
+consume_scroll_integer(float *scroll) {
+    float value = CLAMP(*scroll, -127, 127);
+    int8_t consume = value; // truncate towards 0
+    float residual = value - consume;
+    *scroll = residual;
+    return consume;
+}
+
+bool
+sc_hid_mouse_generate_input_from_scroll(struct sc_hid_mouse *hid,
+                                        struct sc_hid_input *hid_input,
                                     const struct sc_mouse_scroll_event *event) {
     sc_hid_mouse_input_init(hid_input);
 
+    hid->residual_hscroll += event->hscroll;
+    hid->residual_vscroll += event->vscroll;
+    int8_t hscroll = consume_scroll_integer(&hid->residual_hscroll);
+    int8_t vscroll = consume_scroll_integer(&hid->residual_vscroll);
+
+    if (!hscroll && !vscroll) {
+        // Not enough scrolling to inject a scroll event
+        return false;
+    }
+
     uint8_t *data = hid_input->data;
     data[0] = 0; // buttons state irrelevant (and unknown)
     data[1] = 0; // no x motion
     data[2] = 0; // no y motion
-    // In practice, vscroll is always -1, 0 or 1, but in theory other values
-    // are possible
-    data[3] = CLAMP(event->vscroll, -127, 127);
-    // Horizontal scrolling ignored
+    data[3] = vscroll;
+    data[4] = hscroll;
+    return true;
 }
 
 void sc_hid_mouse_generate_open(struct sc_hid_open *hid_open) {

app/src/hid/hid_mouse.h

@@ -8,6 +8,13 @@
 
 #define SC_HID_ID_MOUSE 2
 
+struct sc_hid_mouse {
+    float residual_hscroll;
+    float residual_vscroll;
+};
+
+void sc_hid_mouse_init(struct sc_hid_mouse *hid);
+
 void
 sc_hid_mouse_generate_open(struct sc_hid_open *hid_open);
 
@@ -22,8 +29,9 @@ void
 sc_hid_mouse_generate_input_from_click(struct sc_hid_input *hid_input,
                                     const struct sc_mouse_click_event *event);
 
-void
-sc_hid_mouse_generate_input_from_scroll(struct sc_hid_input *hid_input,
+bool
+sc_hid_mouse_generate_input_from_scroll(struct sc_hid_mouse *hid,
+                                        struct sc_hid_input *hid_input,
                                     const struct sc_mouse_scroll_event *event);
 
 #endif

app/src/icon.c

@@ -10,7 +10,7 @@
 #include <libavutil/avutil.h>
 #include <libavutil/pixdesc.h>
 #include <libavutil/pixfmt.h>
-#include <SDL2/SDL.h>
+#include <SDL3/SDL.h>
 
 #include "config.h"
 #include "util/env.h"
@@ -156,13 +156,7 @@ 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
+static SDL_PixelFormat
 to_sdl_pixel_format(enum AVPixelFormat fmt) {
     switch (fmt) {
         case AV_PIX_FMT_RGB24: return SDL_PIXELFORMAT_RGB24;
@@ -172,13 +166,11 @@ to_sdl_pixel_format(enum AVPixelFormat fmt) {
         case AV_PIX_FMT_ABGR: return SDL_PIXELFORMAT_ABGR32;
         case AV_PIX_FMT_BGRA: return SDL_PIXELFORMAT_BGRA32;
         case AV_PIX_FMT_RGB565BE: return SDL_PIXELFORMAT_RGB565;
-        case AV_PIX_FMT_RGB555BE: return SDL_PIXELFORMAT_RGB555;
+        case AV_PIX_FMT_RGB555BE: return SDL_PIXELFORMAT_XRGB1555;
         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_BGR555BE: return SDL_PIXELFORMAT_XBGR1555;
+        case AV_PIX_FMT_RGB444BE: return SDL_PIXELFORMAT_XRGB4444;
+        case AV_PIX_FMT_BGR444BE: return SDL_PIXELFORMAT_XBGR4444;
         case AV_PIX_FMT_PAL8: return SDL_PIXELFORMAT_INDEX8;
         default: return SDL_PIXELFORMAT_UNKNOWN;
     }
@@ -203,20 +195,16 @@ load_from_path(const char *path) {
         goto error;
     }
 
-    SDL_PixelFormatEnum format = to_sdl_pixel_format(frame->format);
+    SDL_PixelFormat format = to_sdl_pixel_format(frame->format);
     if (format == SDL_PIXELFORMAT_UNKNOWN) {
         LOGE("Unsupported icon pixel format: %s (%d)", desc->name,
                                                        frame->format);
         goto error;
     }
 
-    int bits_per_pixel = av_get_bits_per_pixel(desc);
     SDL_Surface *surface =
-        SDL_CreateRGBSurfaceWithFormatFrom(frame->data[0],
-                                           frame->width, frame->height,
-                                           bits_per_pixel,
-                                           frame->linesize[0],
-                                           format);
+        SDL_CreateSurfaceFrom(frame->width, frame->height, format,
+                              frame->data[0], frame->linesize[0]);
 
     if (!surface) {
         LOGE("Could not create icon surface");
@@ -248,17 +236,35 @@ load_from_path(const char *path) {
 #endif
         }
 
-        SDL_Palette *palette = surface->format->palette;
-        assert(palette);
-        int ret = SDL_SetPaletteColors(palette, colors, 0, 256);
-        if (ret) {
+        SDL_Palette *palette = SDL_CreateSurfacePalette(surface);
+        if (!palette) {
+            LOGE("Could not create palette");
+            SDL_DestroySurface(surface);
+            goto error;
+        }
+
+        bool ok = SDL_SetPaletteColors(palette, colors, 0, 256);
+        if (!ok) {
             LOGE("Could not set palette colors");
-            SDL_FreeSurface(surface);
+            SDL_DestroySurface(surface);
             goto error;
         }
     }
 
-    surface->userdata = frame; // frame owns the data
+    SDL_PropertiesID props = SDL_GetSurfaceProperties(surface);
+    if (!props) {
+        LOGE("Could not get surface properties: %s", SDL_GetError());
+        SDL_DestroySurface(surface);
+        goto error;
+    }
+
+    // frame owns the data
+    bool ok = SDL_SetPointerProperty(props, "sc_frame", frame);
+    if (!ok) {
+        LOGE("Could not set pointer property: %s", SDL_GetError());
+        SDL_DestroySurface(surface);
+        goto error;
+    }
 
     return surface;
 
@@ -281,8 +287,10 @@ scrcpy_icon_load(void) {
 
 void
 scrcpy_icon_destroy(SDL_Surface *icon) {
-    AVFrame *frame = icon->userdata;
+    SDL_PropertiesID props = SDL_GetSurfaceProperties(icon);
+    assert(props);
+    AVFrame *frame = SDL_GetPointerProperty(props, "sc_frame", NULL);
     assert(frame);
     av_frame_free(&frame);
-    SDL_FreeSurface(icon);
+    SDL_DestroySurface(icon);
 }

app/src/icon.h

@@ -3,7 +3,7 @@
 
 #include "common.h"
 
-#include <SDL2/SDL_surface.h>
+#include <SDL3/SDL_surface.h>
 
 SDL_Surface *
 scrcpy_icon_load(void);

app/src/input_events.h

@@ -6,7 +6,7 @@
 #include <assert.h>
 #include <stdbool.h>
 #include <stdint.h>
-#include <SDL2/SDL_events.h>
+#include <SDL3/SDL_events.h>
 
 #include "coords.h"
 
@@ -14,7 +14,8 @@
  * 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/).
+ * processors (sc_key_processor, sc_mouse_processor and sc_gamepad_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
@@ -43,17 +44,17 @@
  */
 
 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_LSHIFT = SDL_KMOD_LSHIFT,
+    SC_MOD_RSHIFT = SDL_KMOD_RSHIFT,
+    SC_MOD_LCTRL = SDL_KMOD_LCTRL,
+    SC_MOD_RCTRL = SDL_KMOD_RCTRL,
+    SC_MOD_LALT = SDL_KMOD_LALT,
+    SC_MOD_RALT = SDL_KMOD_RALT,
+    SC_MOD_LGUI = SDL_KMOD_LGUI,
+    SC_MOD_RGUI = SDL_KMOD_RGUI,
 
-    SC_MOD_NUM = KMOD_NUM,
-    SC_MOD_CAPS = KMOD_CAPS,
+    SC_MOD_NUM = SDL_KMOD_NUM,
+    SC_MOD_CAPS = SDL_KMOD_CAPS,
 };
 
 enum sc_action {
@@ -70,12 +71,12 @@ enum sc_keycode {
     SC_KEYCODE_TAB = SDLK_TAB,
     SC_KEYCODE_SPACE = SDLK_SPACE,
     SC_KEYCODE_EXCLAIM = SDLK_EXCLAIM,
-    SC_KEYCODE_QUOTEDBL = SDLK_QUOTEDBL,
+    SC_KEYCODE_QUOTEDBL = SDLK_DBLAPOSTROPHE,
     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_QUOTE = SDLK_APOSTROPHE,
     SC_KEYCODE_LEFTPAREN = SDLK_LEFTPAREN,
     SC_KEYCODE_RIGHTPAREN = SDLK_RIGHTPAREN,
     SC_KEYCODE_ASTERISK = SDLK_ASTERISK,
@@ -107,33 +108,33 @@ enum sc_keycode {
     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_BACKQUOTE = SDLK_GRAVE,
+    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,
 
@@ -315,43 +316,40 @@ enum sc_scancode {
 // 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),
+    SC_MOUSE_BUTTON_LEFT = SDL_BUTTON_MASK(SDL_BUTTON_LEFT),
+    SC_MOUSE_BUTTON_RIGHT = SDL_BUTTON_MASK(SDL_BUTTON_RIGHT),
+    SC_MOUSE_BUTTON_MIDDLE = SDL_BUTTON_MASK(SDL_BUTTON_MIDDLE),
+    SC_MOUSE_BUTTON_X1 = SDL_BUTTON_MASK(SDL_BUTTON_X1),
+    SC_MOUSE_BUTTON_X2 = SDL_BUTTON_MASK(SDL_BUTTON_X2),
 };
 
-// Use the naming from SDL3 for gamepad axis and buttons:
-// <https://wiki.libsdl.org/SDL3/README/migration>
-
 enum sc_gamepad_axis {
     SC_GAMEPAD_AXIS_UNKNOWN = -1,
-    SC_GAMEPAD_AXIS_LEFTX = SDL_CONTROLLER_AXIS_LEFTX,
-    SC_GAMEPAD_AXIS_LEFTY = SDL_CONTROLLER_AXIS_LEFTY,
-    SC_GAMEPAD_AXIS_RIGHTX = SDL_CONTROLLER_AXIS_RIGHTX,
-    SC_GAMEPAD_AXIS_RIGHTY = SDL_CONTROLLER_AXIS_RIGHTY,
-    SC_GAMEPAD_AXIS_LEFT_TRIGGER = SDL_CONTROLLER_AXIS_TRIGGERLEFT,
-    SC_GAMEPAD_AXIS_RIGHT_TRIGGER = SDL_CONTROLLER_AXIS_TRIGGERRIGHT,
+    SC_GAMEPAD_AXIS_LEFTX = SDL_GAMEPAD_AXIS_LEFTX,
+    SC_GAMEPAD_AXIS_LEFTY = SDL_GAMEPAD_AXIS_LEFTY,
+    SC_GAMEPAD_AXIS_RIGHTX = SDL_GAMEPAD_AXIS_RIGHTX,
+    SC_GAMEPAD_AXIS_RIGHTY = SDL_GAMEPAD_AXIS_RIGHTY,
+    SC_GAMEPAD_AXIS_LEFT_TRIGGER = SDL_GAMEPAD_AXIS_LEFT_TRIGGER,
+    SC_GAMEPAD_AXIS_RIGHT_TRIGGER = SDL_GAMEPAD_AXIS_RIGHT_TRIGGER,
 };
 
 enum sc_gamepad_button {
     SC_GAMEPAD_BUTTON_UNKNOWN = -1,
-    SC_GAMEPAD_BUTTON_SOUTH = SDL_CONTROLLER_BUTTON_A,
-    SC_GAMEPAD_BUTTON_EAST = SDL_CONTROLLER_BUTTON_B,
-    SC_GAMEPAD_BUTTON_WEST = SDL_CONTROLLER_BUTTON_X,
-    SC_GAMEPAD_BUTTON_NORTH = SDL_CONTROLLER_BUTTON_Y,
-    SC_GAMEPAD_BUTTON_BACK = SDL_CONTROLLER_BUTTON_BACK,
-    SC_GAMEPAD_BUTTON_GUIDE = SDL_CONTROLLER_BUTTON_GUIDE,
-    SC_GAMEPAD_BUTTON_START = SDL_CONTROLLER_BUTTON_START,
-    SC_GAMEPAD_BUTTON_LEFT_STICK = SDL_CONTROLLER_BUTTON_LEFTSTICK,
-    SC_GAMEPAD_BUTTON_RIGHT_STICK = SDL_CONTROLLER_BUTTON_RIGHTSTICK,
-    SC_GAMEPAD_BUTTON_LEFT_SHOULDER = SDL_CONTROLLER_BUTTON_LEFTSHOULDER,
-    SC_GAMEPAD_BUTTON_RIGHT_SHOULDER = SDL_CONTROLLER_BUTTON_RIGHTSHOULDER,
-    SC_GAMEPAD_BUTTON_DPAD_UP = SDL_CONTROLLER_BUTTON_DPAD_UP,
-    SC_GAMEPAD_BUTTON_DPAD_DOWN = SDL_CONTROLLER_BUTTON_DPAD_DOWN,
-    SC_GAMEPAD_BUTTON_DPAD_LEFT = SDL_CONTROLLER_BUTTON_DPAD_LEFT,
-    SC_GAMEPAD_BUTTON_DPAD_RIGHT = SDL_CONTROLLER_BUTTON_DPAD_RIGHT,
+    SC_GAMEPAD_BUTTON_SOUTH = SDL_GAMEPAD_BUTTON_SOUTH,
+    SC_GAMEPAD_BUTTON_EAST = SDL_GAMEPAD_BUTTON_EAST,
+    SC_GAMEPAD_BUTTON_WEST = SDL_GAMEPAD_BUTTON_WEST,
+    SC_GAMEPAD_BUTTON_NORTH = SDL_GAMEPAD_BUTTON_NORTH,
+    SC_GAMEPAD_BUTTON_BACK = SDL_GAMEPAD_BUTTON_BACK,
+    SC_GAMEPAD_BUTTON_GUIDE = SDL_GAMEPAD_BUTTON_GUIDE,
+    SC_GAMEPAD_BUTTON_START = SDL_GAMEPAD_BUTTON_START,
+    SC_GAMEPAD_BUTTON_LEFT_STICK = SDL_GAMEPAD_BUTTON_LEFT_STICK,
+    SC_GAMEPAD_BUTTON_RIGHT_STICK = SDL_GAMEPAD_BUTTON_RIGHT_STICK,
+    SC_GAMEPAD_BUTTON_LEFT_SHOULDER = SDL_GAMEPAD_BUTTON_LEFT_SHOULDER,
+    SC_GAMEPAD_BUTTON_RIGHT_SHOULDER = SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER,
+    SC_GAMEPAD_BUTTON_DPAD_UP = SDL_GAMEPAD_BUTTON_DPAD_UP,
+    SC_GAMEPAD_BUTTON_DPAD_DOWN = SDL_GAMEPAD_BUTTON_DPAD_DOWN,
+    SC_GAMEPAD_BUTTON_DPAD_LEFT = SDL_GAMEPAD_BUTTON_DPAD_LEFT,
+    SC_GAMEPAD_BUTTON_DPAD_RIGHT = SDL_GAMEPAD_BUTTON_DPAD_RIGHT,
 };
 
 static_assert(sizeof(enum sc_mod) >= sizeof(SDL_Keymod),
@@ -411,10 +409,9 @@ struct sc_touch_event {
     float pressure;
 };
 
-// As documented in <https://wiki.libsdl.org/SDL2/SDL_JoystickID>:
-// The ID value starts at 0 and increments from there. The value -1 is an
-// invalid ID.
-#define SC_GAMEPAD_ID_INVALID UINT32_C(-1)
+// As documented in <https://wiki.libsdl.org/SDL3/SDL_JoystickID>:
+// The value 0 is an invalid ID.
+#define SC_GAMEPAD_ID_INVALID 0
 
 struct sc_gamepad_device_event {
     uint32_t gamepad_id;
@@ -449,8 +446,8 @@ sc_scancode_from_sdl(SDL_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) {
+    assert(type == SDL_EVENT_KEY_DOWN || type == SDL_EVENT_KEY_UP);
+    if (type == SDL_EVENT_KEY_DOWN) {
         return SC_ACTION_DOWN;
     }
     return SC_ACTION_UP;
@@ -458,8 +455,8 @@ sc_action_from_sdl_keyboard_type(uint32_t type) {
 
 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) {
+    assert(type == SDL_EVENT_MOUSE_BUTTON_DOWN || type == SDL_EVENT_MOUSE_BUTTON_UP);
+    if (type == SDL_EVENT_MOUSE_BUTTON_DOWN) {
         return SC_ACTION_DOWN;
     }
     return SC_ACTION_UP;
@@ -467,12 +464,12 @@ sc_action_from_sdl_mousebutton_type(uint32_t type) {
 
 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) {
+    assert(type == SDL_EVENT_FINGER_MOTION || type == SDL_EVENT_FINGER_DOWN ||
+           type == SDL_EVENT_FINGER_UP);
+    if (type == SDL_EVENT_FINGER_MOTION) {
         return SC_TOUCH_ACTION_MOVE;
     }
-    if (type == SDL_FINGERDOWN) {
+    if (type == SDL_EVENT_FINGER_DOWN) {
         return SC_TOUCH_ACTION_DOWN;
     }
     return SC_TOUCH_ACTION_UP;
@@ -482,7 +479,7 @@ 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 SDL_BUTTON_MASK(button);
     }
 
     return SC_MOUSE_BUTTON_UNKNOWN;
@@ -498,9 +495,9 @@ sc_mouse_buttons_state_from_sdl(uint32_t buttons_state) {
 
 static inline enum sc_gamepad_axis
 sc_gamepad_axis_from_sdl(uint8_t axis) {
-    if (axis <= SDL_CONTROLLER_AXIS_TRIGGERRIGHT) {
+    if (axis <= SDL_GAMEPAD_AXIS_RIGHT_TRIGGER) {
         // SC_GAMEPAD_AXIS_* constants are initialized from
-        // SDL_CONTROLLER_AXIS_*
+        // SDL_GAMEPAD_AXIS_*
         return axis;
     }
     return SC_GAMEPAD_AXIS_UNKNOWN;
@@ -508,18 +505,18 @@ sc_gamepad_axis_from_sdl(uint8_t axis) {
 
 static inline enum sc_gamepad_button
 sc_gamepad_button_from_sdl(uint8_t button) {
-    if (button <= SDL_CONTROLLER_BUTTON_DPAD_RIGHT) {
+    if (button <= SDL_GAMEPAD_BUTTON_DPAD_RIGHT) {
         // SC_GAMEPAD_BUTTON_* constants are initialized from
-        // SDL_CONTROLLER_BUTTON_*
+        // SDL_GAMEPAD_BUTTON_*
         return button;
     }
     return SC_GAMEPAD_BUTTON_UNKNOWN;
 }
 
 static inline enum sc_action
-sc_action_from_sdl_controllerbutton_type(uint32_t type) {
-    assert(type == SDL_CONTROLLERBUTTONDOWN || type == SDL_CONTROLLERBUTTONUP);
-    if (type == SDL_CONTROLLERBUTTONDOWN) {
+sc_action_from_sdl_gamepad_button_type(uint32_t type) {
+    assert(type == SDL_EVENT_GAMEPAD_BUTTON_DOWN || type == SDL_EVENT_GAMEPAD_BUTTON_UP);
+    if (type == SDL_EVENT_GAMEPAD_BUTTON_DOWN) {
         return SC_ACTION_DOWN;
     }
     return SC_ACTION_UP;

app/src/input_manager.c

@@ -3,7 +3,7 @@
 #include <assert.h>
 #include <stdlib.h>
 #include <string.h>
-#include <SDL2/SDL.h>
+#include <SDL3/SDL.h>
 
 #include "android/input.h"
 #include "android/keycodes.h"
@@ -11,6 +11,7 @@
 #include "screen.h"
 #include "shortcut_mod.h"
 #include "util/log.h"
+#include "util/sdl.h"
 
 void
 sc_input_manager_init(struct sc_input_manager *im,
@@ -374,11 +375,11 @@ sc_input_manager_process_key(struct sc_input_manager *im,
     bool paused = im->screen->paused;
     bool video = im->screen->video;
 
-    SDL_Keycode sdl_keycode = event->keysym.sym;
-    uint16_t mod = event->keysym.mod;
-    bool down = event->type == SDL_KEYDOWN;
-    bool ctrl = event->keysym.mod & KMOD_CTRL;
-    bool shift = event->keysym.mod & KMOD_SHIFT;
+    SDL_Keycode sdl_keycode = event->key;
+    uint16_t mod = event->mod;
+    bool down = event->type == SDL_EVENT_KEY_DOWN;
+    bool ctrl = event->mod & SDL_KMOD_CTRL;
+    bool shift = event->mod & SDL_KMOD_SHIFT;
     bool repeat = event->repeat;
 
     // Either the modifier includes a shortcut modifier, or the key
@@ -402,39 +403,39 @@ sc_input_manager_process_key(struct sc_input_manager *im,
     if (is_shortcut) {
         enum sc_action action = down ? SC_ACTION_DOWN : SC_ACTION_UP;
         switch (sdl_keycode) {
-            case SDLK_h:
+            case SDLK_H:
                 if (im->kp && !shift && !repeat && !paused) {
                     action_home(im, action);
                 }
                 return;
-            case SDLK_b: // fall-through
+            case SDLK_B: // fall-through
             case SDLK_BACKSPACE:
                 if (im->kp && !shift && !repeat && !paused) {
                     action_back(im, action);
                 }
                 return;
-            case SDLK_s:
+            case SDLK_S:
                 if (im->kp && !shift && !repeat && !paused) {
                     action_app_switch(im, action);
                 }
                 return;
-            case SDLK_m:
+            case SDLK_M:
                 if (im->kp && !shift && !repeat && !paused) {
                     action_menu(im, action);
                 }
                 return;
-            case SDLK_p:
+            case SDLK_P:
                 if (im->kp && !shift && !repeat && !paused) {
                     action_power(im, action);
                 }
                 return;
-            case SDLK_o:
+            case SDLK_O:
                 if (control && !repeat && down && !paused) {
                     bool on = shift;
                     set_display_power(im, on);
                 }
                 return;
-            case SDLK_z:
+            case SDLK_Z:
                 if (video && down && !repeat) {
                     sc_screen_set_paused(im->screen, !shift);
                 }
@@ -483,17 +484,17 @@ sc_input_manager_process_key(struct sc_input_manager *im,
                     }
                 }
                 return;
-            case SDLK_c:
+            case SDLK_C:
                 if (im->kp && !shift && !repeat && down && !paused) {
                     get_device_clipboard(im, SC_COPY_KEY_COPY);
                 }
                 return;
-            case SDLK_x:
+            case SDLK_X:
                 if (im->kp && !shift && !repeat && down && !paused) {
                     get_device_clipboard(im, SC_COPY_KEY_CUT);
                 }
                 return;
-            case SDLK_v:
+            case SDLK_V:
                 if (im->kp && !repeat && down && !paused) {
                     if (shift || im->legacy_paste) {
                         // inject the text as input events
@@ -505,27 +506,27 @@ sc_input_manager_process_key(struct sc_input_manager *im,
                     }
                 }
                 return;
-            case SDLK_f:
+            case SDLK_F:
                 if (video && !shift && !repeat && down) {
                     sc_screen_toggle_fullscreen(im->screen);
                 }
                 return;
-            case SDLK_w:
+            case SDLK_W:
                 if (video && !shift && !repeat && down) {
                     sc_screen_resize_to_fit(im->screen);
                 }
                 return;
-            case SDLK_g:
+            case SDLK_G:
                 if (video && !shift && !repeat && down) {
                     sc_screen_resize_to_pixel_perfect(im->screen);
                 }
                 return;
-            case SDLK_i:
+            case SDLK_I:
                 if (video && !shift && !repeat && down) {
                     switch_fps_counter_state(im);
                 }
                 return;
-            case SDLK_n:
+            case SDLK_N:
                 if (control && !repeat && down && !paused) {
                     if (shift) {
                         collapse_panels(im);
@@ -536,7 +537,7 @@ sc_input_manager_process_key(struct sc_input_manager *im,
                     }
                 }
                 return;
-            case SDLK_r:
+            case SDLK_R:
                 if (control && !repeat && down && !paused) {
                     if (shift) {
                         reset_video(im);
@@ -545,7 +546,7 @@ sc_input_manager_process_key(struct sc_input_manager *im,
                     }
                 }
                 return;
-            case SDLK_k:
+            case SDLK_K:
                 if (control && !shift && !repeat && down && !paused
                         && im->kp && im->kp->hid) {
                     // Only if the current keyboard is hid
@@ -562,7 +563,7 @@ sc_input_manager_process_key(struct sc_input_manager *im,
     }
 
     uint64_t ack_to_wait = SC_SEQUENCE_INVALID;
-    bool is_ctrl_v = ctrl && !shift && sdl_keycode == SDLK_v && down && !repeat;
+    bool is_ctrl_v = ctrl && !shift && sdl_keycode == SDLK_V && down && !repeat;
     if (im->clipboard_autosync && is_ctrl_v) {
         if (im->legacy_paste) {
             // inject the text as input events
@@ -595,7 +596,7 @@ sc_input_manager_process_key(struct sc_input_manager *im,
         return;
     }
 
-    enum sc_scancode scancode = sc_scancode_from_sdl(event->keysym.scancode);
+    enum sc_scancode scancode = sc_scancode_from_sdl(event->scancode);
     if (scancode == SC_SCANCODE_UNKNOWN) {
         return;
     }
@@ -605,7 +606,7 @@ sc_input_manager_process_key(struct sc_input_manager *im,
         .keycode = keycode,
         .scancode = scancode,
         .repeat = event->repeat,
-        .mods_state = sc_mods_state_from_sdl(event->keysym.mod),
+        .mods_state = sc_mods_state_from_sdl(event->mod),
     };
 
     assert(im->kp->ops->process_key);
@@ -672,13 +673,12 @@ sc_input_manager_process_touch(struct sc_input_manager *im,
         return;
     }
 
-    int dw;
-    int dh;
-    SDL_GL_GetDrawableSize(im->screen->window, &dw, &dh);
+    struct sc_size drawable_size =
+        sc_sdl_get_window_size_in_pixels(im->screen->window);
 
     // SDL touch event coordinates are normalized in the range [0; 1]
-    int32_t x = event->x * dw;
-    int32_t y = event->y * dh;
+    int32_t x = event->x * (int32_t) drawable_size.width;
+    int32_t y = event->y * (int32_t) drawable_size.height;
 
     struct sc_touch_event evt = {
         .position = {
@@ -687,7 +687,7 @@ sc_input_manager_process_touch(struct sc_input_manager *im,
                 sc_screen_convert_drawable_to_frame_coords(im->screen, x, y),
         },
         .action = sc_touch_action_from_sdl(event->type),
-        .pointer_id = event->fingerId,
+        .pointer_id = event->fingerID,
         .pressure = event->pressure,
     };
 
@@ -723,7 +723,7 @@ sc_input_manager_process_mouse_button(struct sc_input_manager *im,
 
     bool control = im->controller;
     bool paused = im->screen->paused;
-    bool down = event->type == SDL_MOUSEBUTTONDOWN;
+    bool down = event->type == SDL_EVENT_MOUSE_BUTTON_DOWN;
 
     enum sc_mouse_button button = sc_mouse_button_from_sdl(event->button);
     if (button == SC_MOUSE_BUTTON_UNKNOWN) {
@@ -736,8 +736,8 @@ sc_input_manager_process_mouse_button(struct sc_input_manager *im,
     }
 
     SDL_Keymod keymod = SDL_GetModState();
-    bool ctrl_pressed = keymod & KMOD_CTRL;
-    bool shift_pressed = keymod & KMOD_SHIFT;
+    bool ctrl_pressed = keymod & SDL_KMOD_CTRL;
+    bool shift_pressed = keymod & SDL_KMOD_SHIFT;
 
     if (control && !paused) {
         enum sc_action action = down ? SC_ACTION_DOWN : SC_ACTION_UP;
@@ -889,20 +889,15 @@ sc_input_manager_process_mouse_wheel(struct sc_input_manager *im,
     }
 
     // mouse_x and mouse_y are expressed in pixels relative to the window
-    int mouse_x;
-    int mouse_y;
+    float mouse_x;
+    float mouse_y;
     uint32_t buttons = SDL_GetMouseState(&mouse_x, &mouse_y);
     (void) buttons; // Actual buttons are tracked manually to ignore shortcuts
 
     struct sc_mouse_scroll_event evt = {
         .position = sc_input_manager_get_position(im, mouse_x, mouse_y),
-#if SDL_VERSION_ATLEAST(2, 0, 18)
-        .hscroll = CLAMP(event->preciseX, -1.0f, 1.0f),
-        .vscroll = CLAMP(event->preciseY, -1.0f, 1.0f),
-#else
-        .hscroll = CLAMP(event->x, -1, 1),
-        .vscroll = CLAMP(event->y, -1, 1),
-#endif
+        .hscroll = event->x,
+        .vscroll = event->y,
         .buttons_state = im->mouse_buttons_state,
     };
 
@@ -911,31 +906,31 @@ sc_input_manager_process_mouse_wheel(struct sc_input_manager *im,
 
 static void
 sc_input_manager_process_gamepad_device(struct sc_input_manager *im,
-                                       const SDL_ControllerDeviceEvent *event) {
-    if (event->type == SDL_CONTROLLERDEVICEADDED) {
-        SDL_GameController *gc = SDL_GameControllerOpen(event->which);
-        if (!gc) {
-            LOGW("Could not open game controller");
+                                       const SDL_GamepadDeviceEvent *event) {
+    if (event->type == SDL_EVENT_GAMEPAD_ADDED) {
+        SDL_Gamepad *sdl_gamepad = SDL_OpenGamepad(event->which);
+        if (!sdl_gamepad) {
+            LOGW("Could not open gamepad");
             return;
         }
 
-        SDL_Joystick *joystick = SDL_GameControllerGetJoystick(gc);
+        SDL_Joystick *joystick = SDL_GetGamepadJoystick(sdl_gamepad);
         if (!joystick) {
-            LOGW("Could not get controller joystick");
-            SDL_GameControllerClose(gc);
+            LOGW("Could not get gamepad joystick");
+            SDL_CloseGamepad(sdl_gamepad);
             return;
         }
 
         struct sc_gamepad_device_event evt = {
-            .gamepad_id = SDL_JoystickInstanceID(joystick),
+            .gamepad_id = SDL_GetJoystickID(joystick),
         };
         im->gp->ops->process_gamepad_added(im->gp, &evt);
-    } else if (event->type == SDL_CONTROLLERDEVICEREMOVED) {
+    } else if (event->type == SDL_EVENT_GAMEPAD_REMOVED) {
         SDL_JoystickID id = event->which;
 
-        SDL_GameController *gc = SDL_GameControllerFromInstanceID(id);
-        if (gc) {
-            SDL_GameControllerClose(gc);
+        SDL_Gamepad *sdl_gamepad = SDL_GetGamepadFromID(id);
+        if (sdl_gamepad) {
+            SDL_CloseGamepad(sdl_gamepad);
         } else {
             LOGW("Unknown gamepad device removed");
         }
@@ -952,7 +947,7 @@ sc_input_manager_process_gamepad_device(struct sc_input_manager *im,
 
 static void
 sc_input_manager_process_gamepad_axis(struct sc_input_manager *im,
-                                      const SDL_ControllerAxisEvent *event) {
+                                      const SDL_GamepadAxisEvent *event) {
     enum sc_gamepad_axis axis = sc_gamepad_axis_from_sdl(event->axis);
     if (axis == SC_GAMEPAD_AXIS_UNKNOWN) {
         return;
@@ -968,7 +963,7 @@ sc_input_manager_process_gamepad_axis(struct sc_input_manager *im,
 
 static void
 sc_input_manager_process_gamepad_button(struct sc_input_manager *im,
-                                       const SDL_ControllerButtonEvent *event) {
+                                       const SDL_GamepadButtonEvent *event) {
     enum sc_gamepad_button button = sc_gamepad_button_from_sdl(event->button);
     if (button == SC_GAMEPAD_BUTTON_UNKNOWN) {
         return;
@@ -976,7 +971,7 @@ sc_input_manager_process_gamepad_button(struct sc_input_manager *im,
 
     struct sc_gamepad_button_event evt = {
         .gamepad_id = event->which,
-        .action = sc_action_from_sdl_controllerbutton_type(event->type),
+        .action = sc_action_from_sdl_gamepad_button_type(event->type),
         .button = button,
     };
     im->gp->ops->process_gamepad_button(im->gp, &evt);
@@ -991,8 +986,8 @@ is_apk(const char *file) {
 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);
+    assert(event->type == SDL_EVENT_DROP_FILE);
+    char *file = strdup(event->data);
     if (!file) {
         LOG_OOM();
         return;
@@ -1016,66 +1011,66 @@ sc_input_manager_handle_event(struct sc_input_manager *im,
     bool control = im->controller;
     bool paused = im->screen->paused;
     switch (event->type) {
-        case SDL_TEXTINPUT:
+        case SDL_EVENT_TEXT_INPUT:
             if (!im->kp || paused) {
                 break;
             }
             sc_input_manager_process_text_input(im, &event->text);
             break;
-        case SDL_KEYDOWN:
-        case SDL_KEYUP:
+        case SDL_EVENT_KEY_DOWN:
+        case SDL_EVENT_KEY_UP:
             // some key events do not interact with the device, so process the
             // event even if control is disabled
             sc_input_manager_process_key(im, &event->key);
             break;
-        case SDL_MOUSEMOTION:
+        case SDL_EVENT_MOUSE_MOTION:
             if (!im->mp || paused) {
                 break;
             }
             sc_input_manager_process_mouse_motion(im, &event->motion);
             break;
-        case SDL_MOUSEWHEEL:
+        case SDL_EVENT_MOUSE_WHEEL:
             if (!im->mp || paused) {
                 break;
             }
             sc_input_manager_process_mouse_wheel(im, &event->wheel);
             break;
-        case SDL_MOUSEBUTTONDOWN:
-        case SDL_MOUSEBUTTONUP:
+        case SDL_EVENT_MOUSE_BUTTON_DOWN:
+        case SDL_EVENT_MOUSE_BUTTON_UP:
             // some mouse events do not interact with the device, so process
             // the event even if control is disabled
             sc_input_manager_process_mouse_button(im, &event->button);
             break;
-        case SDL_FINGERMOTION:
-        case SDL_FINGERDOWN:
-        case SDL_FINGERUP:
+        case SDL_EVENT_FINGER_MOTION:
+        case SDL_EVENT_FINGER_DOWN:
+        case SDL_EVENT_FINGER_UP:
             if (!im->mp || paused) {
                 break;
             }
             sc_input_manager_process_touch(im, &event->tfinger);
             break;
-        case SDL_CONTROLLERDEVICEADDED:
-        case SDL_CONTROLLERDEVICEREMOVED:
+        case SDL_EVENT_GAMEPAD_ADDED:
+        case SDL_EVENT_GAMEPAD_REMOVED:
             // Handle device added or removed even if paused
             if (!im->gp) {
                 break;
             }
-            sc_input_manager_process_gamepad_device(im, &event->cdevice);
+            sc_input_manager_process_gamepad_device(im, &event->gdevice);
             break;
-        case SDL_CONTROLLERAXISMOTION:
+        case SDL_EVENT_GAMEPAD_AXIS_MOTION:
             if (!im->gp || paused) {
                 break;
             }
-            sc_input_manager_process_gamepad_axis(im, &event->caxis);
+            sc_input_manager_process_gamepad_axis(im, &event->gaxis);
             break;
-        case SDL_CONTROLLERBUTTONDOWN:
-        case SDL_CONTROLLERBUTTONUP:
+        case SDL_EVENT_GAMEPAD_BUTTON_DOWN:
+        case SDL_EVENT_GAMEPAD_BUTTON_UP:
             if (!im->gp || paused) {
                 break;
             }
-            sc_input_manager_process_gamepad_button(im, &event->cbutton);
+            sc_input_manager_process_gamepad_button(im, &event->gbutton);
             break;
-        case SDL_DROPFILE: {
+        case SDL_EVENT_DROP_FILE: {
             if (!control) {
                 break;
             }

app/src/input_manager.h

@@ -5,8 +5,8 @@
 
 #include <stdbool.h>
 #include <stdint.h>
-#include <SDL2/SDL_events.h>
-#include <SDL2/SDL_keycode.h>
+#include <SDL3/SDL_events.h>
+#include <SDL3/SDL_keycode.h>
 
 #include "controller.h"
 #include "file_pusher.h"

app/src/main.c

@@ -1,16 +1,18 @@
 #include "common.h"
 
 #include <stdbool.h>
+#include <stdio.h>
 #ifdef HAVE_V4L2
 # include <libavdevice/avdevice.h>
 #endif
-#define SDL_MAIN_HANDLED // avoid link error on Linux Windows Subsystem
-#include <SDL2/SDL.h>
+#include <SDL3/SDL.h>
 
 #include "cli.h"
 #include "options.h"
 #include "scrcpy.h"
-#include "usb/scrcpy_otg.h"
+#ifdef HAVE_USB
+# include "usb/scrcpy_otg.h"
+#endif
 #include "util/log.h"
 #include "util/net.h"
 #include "util/thread.h"

app/src/mouse_capture.c

@@ -20,14 +20,11 @@ bool
 sc_mouse_capture_handle_event(struct sc_mouse_capture *mc,
                               const SDL_Event *event) {
     switch (event->type) {
-        case SDL_WINDOWEVENT:
-            if (event->window.event == SDL_WINDOWEVENT_FOCUS_LOST) {
-                sc_mouse_capture_set_active(mc, false);
-                return true;
-            }
-            break;
-        case SDL_KEYDOWN: {
-            SDL_Keycode key = event->key.keysym.sym;
+        case SDL_EVENT_WINDOW_FOCUS_LOST:
+            sc_mouse_capture_set_active(mc, false);
+            return true;
+        case SDL_EVENT_KEY_DOWN: {
+            SDL_Keycode key = event->key.key;
             if (sc_mouse_capture_is_capture_key(mc, key)) {
                 if (!mc->mouse_capture_key_pressed) {
                     mc->mouse_capture_key_pressed = key;
@@ -41,8 +38,8 @@ sc_mouse_capture_handle_event(struct sc_mouse_capture *mc,
             }
             break;
         }
-        case SDL_KEYUP: {
-            SDL_Keycode key = event->key.keysym.sym;
+        case SDL_EVENT_KEY_UP: {
+            SDL_Keycode key = event->key.key;
             SDL_Keycode cap = mc->mouse_capture_key_pressed;
             mc->mouse_capture_key_pressed = 0;
             if (sc_mouse_capture_is_capture_key(mc, key)) {
@@ -56,24 +53,24 @@ sc_mouse_capture_handle_event(struct sc_mouse_capture *mc,
             }
             break;
         }
-        case SDL_MOUSEWHEEL:
-        case SDL_MOUSEMOTION:
-        case SDL_MOUSEBUTTONDOWN:
+        case SDL_EVENT_MOUSE_WHEEL:
+        case SDL_EVENT_MOUSE_MOTION:
+        case SDL_EVENT_MOUSE_BUTTON_DOWN:
             if (!sc_mouse_capture_is_active(mc)) {
-                // The mouse will be captured on SDL_MOUSEBUTTONUP, so consume
-                // the event
+                // The mouse will be captured on SDL_EVENT_MOUSE_BUTTON_UP, so
+                // consume the event
                 return true;
             }
             break;
-        case SDL_MOUSEBUTTONUP:
+        case SDL_EVENT_MOUSE_BUTTON_UP:
             if (!sc_mouse_capture_is_active(mc)) {
                 sc_mouse_capture_set_active(mc, true);
                 return true;
             }
             break;
-        case SDL_FINGERMOTION:
-        case SDL_FINGERDOWN:
-        case SDL_FINGERUP:
+        case SDL_EVENT_FINGER_MOTION:
+        case SDL_EVENT_FINGER_DOWN:
+        case SDL_EVENT_FINGER_UP:
             // Touch events are not compatible with relative mode
             // (coordinates are not relative), so consume the event
             return true;
@@ -84,27 +81,8 @@ sc_mouse_capture_handle_event(struct sc_mouse_capture *mc,
 
 void
 sc_mouse_capture_set_active(struct sc_mouse_capture *mc, bool capture) {
-#ifdef __APPLE__
-    // Workaround for SDL bug on macOS:
-    // <https://github.com/libsdl-org/SDL/issues/5340>
-    if (capture) {
-        int mouse_x, mouse_y;
-        SDL_GetGlobalMouseState(&mouse_x, &mouse_y);
-
-        int x, y, w, h;
-        SDL_GetWindowPosition(mc->window, &x, &y);
-        SDL_GetWindowSize(mc->window, &w, &h);
-
-        bool outside_window = mouse_x < x || mouse_x >= x + w
-                           || mouse_y < y || mouse_y >= y + h;
-        if (outside_window) {
-            SDL_WarpMouseInWindow(mc->window, w / 2, h / 2);
-        }
-    }
-#else
-    (void) mc;
-#endif
-    if (SDL_SetRelativeMouseMode(capture)) {
+    bool ok = SDL_SetWindowRelativeMouseMode(mc->window, capture);
+    if (!ok) {
         LOGE("Could not set relative mouse mode to %s: %s",
              capture ? "true" : "false", SDL_GetError());
     }
@@ -112,8 +90,7 @@ sc_mouse_capture_set_active(struct sc_mouse_capture *mc, bool capture) {
 
 bool
 sc_mouse_capture_is_active(struct sc_mouse_capture *mc) {
-    (void) mc;
-    return SDL_GetRelativeMouseMode();
+    return SDL_GetWindowRelativeMouseMode(mc->window);
 }
 
 void

app/src/mouse_capture.h

@@ -5,7 +5,7 @@
 
 #include <stdbool.h>
 
-#include <SDL2/SDL.h>
+#include <SDL3/SDL.h>
 
 struct sc_mouse_capture {
     SDL_Window *window;

app/src/opengl.c

@@ -3,21 +3,29 @@
 #include <assert.h>
 #include <stdio.h>
 #include <string.h>
-#include <SDL2/SDL.h>
+#include <SDL3/SDL.h>
 
 void
 sc_opengl_init(struct sc_opengl *gl) {
-    gl->GetString = SDL_GL_GetProcAddress("glGetString");
+    gl->GetString = (const GLubyte *(*)(GLenum))
+                    SDL_GL_GetProcAddress("glGetString");
     assert(gl->GetString);
 
-    gl->TexParameterf = SDL_GL_GetProcAddress("glTexParameterf");
+    gl->BindTexture = (void (*)(GLenum, GLuint))
+                      SDL_GL_GetProcAddress("glBindTexture");
+    assert(gl->BindTexture);
+
+    gl->TexParameterf = (void (*)(GLenum, GLenum, GLfloat))
+                        SDL_GL_GetProcAddress("glTexParameterf");
     assert(gl->TexParameterf);
 
-    gl->TexParameteri = SDL_GL_GetProcAddress("glTexParameteri");
+    gl->TexParameteri = (void (*)(GLenum, GLenum, GLint))
+                        SDL_GL_GetProcAddress("glTexParameteri");
     assert(gl->TexParameteri);
 
     // optional
-    gl->GenerateMipmap = SDL_GL_GetProcAddress("glGenerateMipmap");
+    gl->GenerateMipmap = (void (*)(GLenum))
+                         SDL_GL_GetProcAddress("glGenerateMipmap");
 
     const char *version = (const char *) gl->GetString(GL_VERSION);
     assert(version);

app/src/opengl.h

@@ -4,7 +4,7 @@
 #include "common.h"
 
 #include <stdbool.h>
-#include <SDL2/SDL_opengl.h>
+#include <SDL3/SDL_opengl.h>
 
 struct sc_opengl {
     const char *version;
@@ -15,6 +15,9 @@ struct sc_opengl {
     const GLubyte *
     (*GetString)(GLenum name);
 
+    void
+    (*BindTexture)(GLenum target, GLuint texture);
+
     void
     (*TexParameterf)(GLenum target, GLenum pname, GLfloat param);
 

app/src/receiver.c

@@ -2,7 +2,8 @@
 
 #include <assert.h>
 #include <inttypes.h>
-#include <SDL2/SDL_clipboard.h>
+#include <stdlib.h>
+#include <SDL3/SDL_clipboard.h>
 
 #include "device_msg.h"
 #include "events.h"
@@ -53,8 +54,12 @@ task_set_clipboard(void *userdata) {
     if (same) {
         LOGD("Computer clipboard unchanged");
     } else {
-        LOGI("Device clipboard copied");
-        SDL_SetClipboardText(text);
+        bool ok = SDL_SetClipboardText(text);
+        if (ok) {
+            LOGI("Device clipboard copied");
+        } else {
+            LOGE("Could not set clipboard: %s", SDL_GetError());
+        }
     }
 
     free(text);

app/src/scrcpy.c

@@ -6,7 +6,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <SDL2/SDL.h>
+#include <SDL3/SDL.h>
 
 #ifdef _WIN32
 // not needed here, but winsock2.h must never be included AFTER windows.h
@@ -93,8 +93,8 @@ struct scrcpy {
 
 #ifdef _WIN32
 static BOOL WINAPI windows_ctrl_handler(DWORD ctrl_type) {
-    if (ctrl_type == CTRL_C_EVENT) {
-        sc_push_event(SDL_QUIT);
+    if (ctrl_type == CTRL_C_EVENT || ctrl_type == CTRL_BREAK_EVENT) {
+        sc_push_event(SDL_EVENT_QUIT);
         return TRUE;
     }
     return FALSE;
@@ -108,41 +108,26 @@ sdl_set_hints(const char *render_driver) {
     }
 
     // App name used in various contexts (such as PulseAudio)
-#if defined(SCRCPY_SDL_HAS_HINT_APP_NAME)
     if (!SDL_SetHint(SDL_HINT_APP_NAME, "scrcpy")) {
         LOGW("Could not set app name");
     }
-#elif defined(SCRCPY_SDL_HAS_HINT_AUDIO_DEVICE_APP_NAME)
-    if (!SDL_SetHint(SDL_HINT_AUDIO_DEVICE_APP_NAME, "scrcpy")) {
-        LOGW("Could not set audio device app name");
-    }
-#endif
-
-    // Linear filtering
-    if (!SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "1")) {
-        LOGW("Could not enable linear filtering");
-    }
 
     // Handle a click to gain focus as any other click
     if (!SDL_SetHint(SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH, "1")) {
         LOGW("Could not enable mouse focus clickthrough");
     }
 
-#ifdef SCRCPY_SDL_HAS_HINT_TOUCH_MOUSE_EVENTS
     // Disable synthetic mouse events from touch events
     // Touch events with id SDL_TOUCH_MOUSEID are ignored anyway, but it is
     // better not to generate them in the first place.
     if (!SDL_SetHint(SDL_HINT_TOUCH_MOUSE_EVENTS, "0")) {
         LOGW("Could not disable synthetic mouse events");
     }
-#endif
 
-#ifdef SCRCPY_SDL_HAS_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR
     // Disable compositor bypassing on X11
     if (!SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0")) {
         LOGW("Could not disable X11 compositor bypass");
     }
-#endif
 
     // Do not minimize on focus loss
     if (!SDL_SetHint(SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS, "0")) {
@@ -169,9 +154,15 @@ sdl_configure(bool video_playback, bool disable_screensaver) {
     }
 
     if (disable_screensaver) {
-        SDL_DisableScreenSaver();
+        bool ok = SDL_DisableScreenSaver();
+        if (!ok) {
+            LOGW("Could not disable screen saver");
+        }
     } else {
-        SDL_EnableScreenSaver();
+        bool ok = SDL_EnableScreenSaver();
+        if (!ok) {
+            LOGW("Could not enable screen saver");
+        }
     }
 }
 
@@ -198,7 +189,7 @@ event_loop(struct scrcpy *s, bool has_screen) {
             case SC_EVENT_TIME_LIMIT_REACHED:
                 LOGI("Time limit reached");
                 return SCRCPY_EXIT_SUCCESS;
-            case SDL_QUIT:
+            case SDL_EVENT_QUIT:
                 LOGD("User requested to quit");
                 return SCRCPY_EXIT_SUCCESS;
             case SC_EVENT_RUN_ON_MAIN_THREAD: {
@@ -238,7 +229,7 @@ await_for_server(bool *connected) {
     SDL_Event event;
     while (SDL_WaitEvent(&event)) {
         switch (event.type) {
-            case SDL_QUIT:
+            case SDL_EVENT_QUIT:
                 if (connected) {
                     *connected = false;
                 }
@@ -364,14 +355,21 @@ scrcpy_generate_scid(void) {
 
 static void
 init_sdl_gamepads(void) {
-    // Trigger a SDL_CONTROLLERDEVICEADDED event for all gamepads already
+    // Trigger a SDL_EVENT_GAMEPAD_ADDED event for all gamepads already
     // connected
-    int num_joysticks = SDL_NumJoysticks();
-    for (int i = 0; i < num_joysticks; ++i) {
-        if (SDL_IsGameController(i)) {
+    int count;
+    SDL_JoystickID *joysticks = SDL_GetJoysticks(&count);
+    if (!joysticks) {
+        LOGE("Could not list joysticks: %s", SDL_GetError());
+        return;
+    }
+
+    for (int i = 0; i < count; ++i) {
+        SDL_JoystickID joystick = joysticks[i];
+        if (SDL_IsGamepad(joystick)) {
             SDL_Event event;
-            event.cdevice.type = SDL_CONTROLLERDEVICEADDED;
-            event.cdevice.which = i;
+            event.gdevice.type = SDL_EVENT_GAMEPAD_ADDED;
+            event.gdevice.which = i;
             SDL_PushEvent(&event);
         }
     }
@@ -387,7 +385,7 @@ scrcpy(struct scrcpy_options *options) {
     struct scrcpy *s = &scrcpy;
 
     // Minimal SDL initialization
-    if (SDL_Init(SDL_INIT_EVENTS)) {
+    if (!SDL_Init(SDL_INIT_EVENTS)) {
         LOGE("Could not initialize SDL: %s", SDL_GetError());
         return SCRCPY_EXIT_FAILURE;
     }
@@ -513,7 +511,7 @@ scrcpy(struct scrcpy_options *options) {
         // --no-video-playback is passed so that clipboard synchronization
         // still works.
         // <https://github.com/Genymobile/scrcpy/issues/4418>
-        if (SDL_Init(SDL_INIT_VIDEO)) {
+        if (!SDL_Init(SDL_INIT_VIDEO)) {
             // If it fails, it is an error only if video playback is enabled
             if (options->video_playback) {
                 LOGE("Could not initialize SDL video: %s", SDL_GetError());
@@ -525,14 +523,14 @@ scrcpy(struct scrcpy_options *options) {
     }
 
     if (options->audio_playback) {
-        if (SDL_Init(SDL_INIT_AUDIO)) {
+        if (!SDL_Init(SDL_INIT_AUDIO)) {
             LOGE("Could not initialize SDL audio: %s", SDL_GetError());
             goto end;
         }
     }
 
     if (options->gamepad_input_mode != SC_GAMEPAD_INPUT_MODE_DISABLED) {
-        if (SDL_Init(SDL_INIT_GAMECONTROLLER)) {
+        if (!SDL_Init(SDL_INIT_GAMEPAD)) {
             LOGE("Could not initialize SDL gamepad: %s", SDL_GetError());
             goto end;
         }

app/src/screen.c

@@ -2,12 +2,13 @@
 
 #include <assert.h>
 #include <string.h>
-#include <SDL2/SDL.h>
+#include <SDL3/SDL.h>
 
 #include "events.h"
 #include "icon.h"
 #include "options.h"
 #include "util/log.h"
+#include "util/sdl.h"
 
 #define DISPLAY_MARGINS 96
 
@@ -26,45 +27,25 @@ get_oriented_size(struct sc_size size, enum sc_orientation orientation) {
     return oriented_size;
 }
 
-// get the window size in a struct sc_size
-static struct sc_size
-get_window_size(const struct sc_screen *screen) {
-    int width;
-    int height;
-    SDL_GetWindowSize(screen->window, &width, &height);
-
-    struct sc_size size;
-    size.width = width;
-    size.height = height;
-    return size;
-}
-
-static struct sc_point
-get_window_position(const struct sc_screen *screen) {
-    int x;
-    int y;
-    SDL_GetWindowPosition(screen->window, &x, &y);
-
-    struct sc_point point;
-    point.x = x;
-    point.y = y;
-    return point;
-}
-
-// set the window size to be applied when fullscreen is disabled
-static void
-set_window_size(struct sc_screen *screen, struct sc_size new_size) {
-    assert(!screen->fullscreen);
-    assert(!screen->maximized);
-    assert(!screen->minimized);
-    SDL_SetWindowSize(screen->window, new_size.width, new_size.height);
+static inline bool
+is_windowed(struct sc_screen *screen) {
+    return !(SDL_GetWindowFlags(screen->window) & (SDL_WINDOW_FULLSCREEN
+                                                 | SDL_WINDOW_MINIMIZED
+                                                 | SDL_WINDOW_MAXIMIZED));
 }
 
 // get the preferred display bounds (i.e. the screen bounds with some margins)
 static bool
 get_preferred_display_bounds(struct sc_size *bounds) {
     SDL_Rect rect;
-    if (SDL_GetDisplayUsableBounds(0, &rect)) {
+    SDL_DisplayID display = SDL_GetPrimaryDisplay();
+    if (!display) {
+        LOGW("Could not get primary display: %s", SDL_GetError());
+        return false;
+    }
+
+    bool ok = SDL_GetDisplayUsableBounds(display, &rect);
+    if (!ok) {
         LOGW("Could not get display usable bounds: %s", SDL_GetError());
         return false;
     }
@@ -166,13 +147,10 @@ static void
 sc_screen_update_content_rect(struct sc_screen *screen) {
     assert(screen->video);
 
-    int dw;
-    int dh;
-    SDL_GL_GetDrawableSize(screen->window, &dw, &dh);
-
     struct sc_size content_size = screen->content_size;
     // The drawable size is the window size * the HiDPI scale
-    struct sc_size drawable_size = {dw, dh};
+    struct sc_size drawable_size =
+        sc_sdl_get_window_size_in_pixels(screen->window);
 
     SDL_Rect *rect = &screen->rect;
 
@@ -208,6 +186,7 @@ sc_screen_update_content_rect(struct sc_screen *screen) {
 static void
 sc_screen_render(struct sc_screen *screen, bool update_content_rect) {
     assert(screen->video);
+    assert(screen->has_video_window);
 
     if (update_content_rect) {
         sc_screen_update_content_rect(screen);
@@ -225,7 +204,7 @@ sc_screen_render_novideo(struct sc_screen *screen) {
     (void) res; // any error already logged
 }
 
-#if defined(__APPLE__) || defined(__WINDOWS__)
+#if defined(__APPLE__) || defined(_WIN32)
 # define CONTINUOUS_RESIZING_WORKAROUND
 #endif
 
@@ -235,18 +214,18 @@ sc_screen_render_novideo(struct sc_screen *screen) {
 //
 // <https://bugzilla.libsdl.org/show_bug.cgi?id=2077>
 // <https://stackoverflow.com/a/40693139/1987178>
-static int
+static bool
 event_watcher(void *data, SDL_Event *event) {
     struct sc_screen *screen = data;
     assert(screen->video);
 
-    if (event->type == SDL_WINDOWEVENT
-            && event->window.event == SDL_WINDOWEVENT_RESIZED) {
+    if (event->type == SDL_EVENT_WINDOW_RESIZED) {
         // In practice, it seems to always be called from the same thread in
         // that specific case. Anyway, it's just a workaround.
         sc_screen_render(screen, true);
     }
-    return 0;
+
+    return true;
 }
 #endif
 
@@ -257,6 +236,7 @@ sc_screen_frame_sink_open(struct sc_frame_sink *sink,
     (void) ctx;
 
     struct sc_screen *screen = DOWNCAST(sink);
+    (void) screen;
 
     if (ctx->width <= 0 || ctx->width > 0xFFFF
             || ctx->height <= 0 || ctx->height > 0xFFFF) {
@@ -264,19 +244,6 @@ sc_screen_frame_sink_open(struct sc_frame_sink *sink,
         return false;
     }
 
-    assert(ctx->width > 0 && ctx->width <= 0xFFFF);
-    assert(ctx->height > 0 && ctx->height <= 0xFFFF);
-    // screen->frame_size is never used before the event is pushed, and the
-    // event acts as a memory barrier so it is safe without mutex
-    screen->frame_size.width = ctx->width;
-    screen->frame_size.height = ctx->height;
-
-    // Post the event on the UI thread (the texture must be created from there)
-    bool ok = sc_push_event(SC_EVENT_SCREEN_INIT_SIZE);
-    if (!ok) {
-        return false;
-    }
-
 #ifndef NDEBUG
     screen->open = true;
 #endif
@@ -327,9 +294,7 @@ 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->minimized = false;
+    screen->has_video_window = false;
     screen->paused = false;
     screen->resume_frame = NULL;
     screen->orientation = SC_ORIENTATION_0;
@@ -360,7 +325,7 @@ sc_screen_init(struct sc_screen *screen,
         }
     }
 
-    uint32_t window_flags = SDL_WINDOW_ALLOW_HIGHDPI;
+    uint32_t window_flags = SDL_WINDOW_HIGH_PIXEL_DENSITY;
     if (params->always_on_top) {
         window_flags |= SDL_WINDOW_ALWAYS_ON_TOP;
     }
@@ -394,22 +359,31 @@ sc_screen_init(struct sc_screen *screen,
     }
 
     // The window will be positioned and sized on first video frame
-    screen->window = SDL_CreateWindow(title, x, y, width, height, window_flags);
+    screen->window =
+        sc_sdl_create_window(title, x, y, width, height, window_flags);
     if (!screen->window) {
         LOGE("Could not create window: %s", SDL_GetError());
         goto error_destroy_fps_counter;
     }
 
+    ok = SDL_StartTextInput(screen->window);
+    if (!ok) {
+        LOGE("Could not enable text input: %s", SDL_GetError());
+        goto error_destroy_window;
+    }
+
     SDL_Surface *icon = scrcpy_icon_load();
     if (icon) {
-        SDL_SetWindowIcon(screen->window, icon);
+        if (!SDL_SetWindowIcon(screen->window, icon)) {
+            LOGW("Could not set window icon: %s", SDL_GetError());
+        }
     } else if (params->video) {
         // just a warning
         LOGW("Could not load icon");
     } else {
         // without video, the icon is used as window content, it must be present
         LOGE("Could not load icon");
-        goto error_destroy_fps_counter;
+        goto error_destroy_window;
     }
 
     SDL_Surface *icon_novideo = params->video ? NULL : icon;
@@ -449,7 +423,11 @@ sc_screen_init(struct sc_screen *screen,
 
 #ifdef CONTINUOUS_RESIZING_WORKAROUND
     if (screen->video) {
-        SDL_AddEventWatch(event_watcher, screen);
+        ok = SDL_AddEventWatch(event_watcher, screen);
+        if (!ok) {
+            LOGW("Could not add event watcher for continuous resizing: %s",
+                 SDL_GetError());
+        }
     }
 #endif
 
@@ -490,13 +468,18 @@ sc_screen_show_initial_window(struct sc_screen *screen) {
           ? 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_point position = {
+        .x = x,
+        .y = y,
+    };
 
     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);
+    assert(is_windowed(screen));
+    sc_sdl_set_window_size(screen->window, window_size);
+    sc_sdl_set_window_position(screen->window, position);
 
     if (screen->req.fullscreen) {
         sc_screen_toggle_fullscreen(screen);
@@ -506,13 +489,13 @@ sc_screen_show_initial_window(struct sc_screen *screen) {
         sc_fps_counter_start(&screen->fps_counter);
     }
 
-    SDL_ShowWindow(screen->window);
+    sc_sdl_show_window(screen->window);
     sc_screen_update_content_rect(screen);
 }
 
 void
 sc_screen_hide_window(struct sc_screen *screen) {
-    SDL_HideWindow(screen->window);
+    sc_sdl_hide_window(screen->window);
 }
 
 void
@@ -542,7 +525,7 @@ resize_for_content(struct sc_screen *screen, struct sc_size old_content_size,
                    struct sc_size new_content_size) {
     assert(screen->video);
 
-    struct sc_size window_size = get_window_size(screen);
+    struct sc_size window_size = sc_sdl_get_window_size(screen->window);
     struct sc_size target_size = {
         .width = (uint32_t) window_size.width * new_content_size.width
                 / old_content_size.width,
@@ -550,14 +533,15 @@ resize_for_content(struct sc_screen *screen, struct sc_size old_content_size,
                 / old_content_size.height,
     };
     target_size = get_optimal_size(target_size, new_content_size, true);
-    set_window_size(screen, target_size);
+    assert(is_windowed(screen));
+    sc_sdl_set_window_size(screen->window, target_size);
 }
 
 static void
 set_content_size(struct sc_screen *screen, struct sc_size new_content_size) {
     assert(screen->video);
 
-    if (!screen->fullscreen && !screen->maximized && !screen->minimized) {
+    if (is_windowed(screen)) {
         resize_for_content(screen, screen->content_size, new_content_size);
     } else if (!screen->resize_pending) {
         // Store the windowed size to be able to compute the optimal size once
@@ -573,9 +557,7 @@ static void
 apply_pending_resize(struct sc_screen *screen) {
     assert(screen->video);
 
-    assert(!screen->fullscreen);
-    assert(!screen->maximized);
-    assert(!screen->minimized);
+    assert(is_windowed(screen));
     if (screen->resize_pending) {
         resize_for_content(screen, screen->windowed_content_size,
                                    screen->content_size);
@@ -603,44 +585,6 @@ sc_screen_set_orientation(struct sc_screen *screen,
     sc_screen_render(screen, true);
 }
 
-static bool
-sc_screen_init_size(struct sc_screen *screen) {
-    // Before first frame
-    assert(!screen->has_frame);
-
-    // The requested size is passed via screen->frame_size
-
-    struct sc_size content_size =
-        get_oriented_size(screen->frame_size, screen->orientation);
-    screen->content_size = content_size;
-
-    enum sc_display_result res =
-        sc_display_set_texture_size(&screen->display, screen->frame_size);
-    return res != SC_DISPLAY_RESULT_ERROR;
-}
-
-// recreate the texture and resize the window if the frame size has changed
-static enum sc_display_result
-prepare_for_frame(struct sc_screen *screen, struct sc_size new_frame_size) {
-    assert(screen->video);
-
-    if (screen->frame_size.width == new_frame_size.width
-            && screen->frame_size.height == new_frame_size.height) {
-        return SC_DISPLAY_RESULT_OK;
-    }
-
-    // frame dimension changed
-    screen->frame_size = new_frame_size;
-
-    struct sc_size new_content_size =
-        get_oriented_size(new_frame_size, screen->orientation);
-    set_content_size(screen, new_content_size);
-
-    sc_screen_update_content_rect(screen);
-
-    return sc_display_set_texture_size(&screen->display, screen->frame_size);
-}
-
 static bool
 sc_screen_apply_frame(struct sc_screen *screen) {
     assert(screen->video);
@@ -649,7 +593,38 @@ sc_screen_apply_frame(struct sc_screen *screen) {
 
     AVFrame *frame = screen->frame;
     struct sc_size new_frame_size = {frame->width, frame->height};
-    enum sc_display_result res = prepare_for_frame(screen, new_frame_size);
+
+    if (!screen->has_frame
+            || screen->frame_size.width != new_frame_size.width
+            || screen->frame_size.height != new_frame_size.height) {
+        // frame dimension changed
+        screen->frame_size = new_frame_size;
+
+        struct sc_size new_content_size =
+            get_oriented_size(new_frame_size, screen->orientation);
+        if (screen->has_frame) {
+            set_content_size(screen, new_content_size);
+            sc_screen_update_content_rect(screen);
+        } else {
+            // This is the first frame
+            screen->has_frame = true;
+            screen->content_size = new_content_size;
+        }
+
+        enum sc_display_result res =
+            sc_display_prepare_texture(&screen->display, screen->frame_size,
+                                       frame->colorspace, frame->color_range);
+        if (res == SC_DISPLAY_RESULT_ERROR) {
+            return false;
+        }
+        if (res == SC_DISPLAY_RESULT_PENDING) {
+            // Not an error, but do not continue
+            return true;
+        }
+    }
+
+    enum sc_display_result res =
+        sc_display_update_texture(&screen->display, frame);
     if (res == SC_DISPLAY_RESULT_ERROR) {
         return false;
     }
@@ -658,17 +633,9 @@ sc_screen_apply_frame(struct sc_screen *screen) {
         return true;
     }
 
-    res = sc_display_update_texture(&screen->display, frame);
-    if (res == SC_DISPLAY_RESULT_ERROR) {
-        return false;
-    }
-    if (res == SC_DISPLAY_RESULT_PENDING) {
-        // Not an error, but do not continue
-        return true;
-    }
-
-    if (!screen->has_frame) {
-        screen->has_frame = true;
+    assert(screen->has_frame);
+    if (!screen->has_video_window) {
+        screen->has_video_window = true;
         // this is the very first frame, show the window
         sc_screen_show_initial_window(screen);
 
@@ -738,31 +705,28 @@ void
 sc_screen_toggle_fullscreen(struct sc_screen *screen) {
     assert(screen->video);
 
-    uint32_t new_mode = screen->fullscreen ? 0 : SDL_WINDOW_FULLSCREEN_DESKTOP;
-    if (SDL_SetWindowFullscreen(screen->window, new_mode)) {
+    bool req_fullscreen =
+        !(SDL_GetWindowFlags(screen->window) & SDL_WINDOW_FULLSCREEN);
+
+    bool ok = SDL_SetWindowFullscreen(screen->window, req_fullscreen);
+    if (!ok) {
         LOGW("Could not switch fullscreen mode: %s", SDL_GetError());
         return;
     }
 
-    screen->fullscreen = !screen->fullscreen;
-    if (!screen->fullscreen && !screen->maximized && !screen->minimized) {
-        apply_pending_resize(screen);
-    }
-
-    LOGD("Switched to %s mode", screen->fullscreen ? "fullscreen" : "windowed");
-    sc_screen_render(screen, true);
+    LOGD("Requested %s mode", req_fullscreen ? "fullscreen" : "windowed");
 }
 
 void
 sc_screen_resize_to_fit(struct sc_screen *screen) {
     assert(screen->video);
 
-    if (screen->fullscreen || screen->maximized || screen->minimized) {
+    if (!is_windowed(screen)) {
         return;
     }
 
-    struct sc_point point = get_window_position(screen);
-    struct sc_size window_size = get_window_size(screen);
+    struct sc_point point = sc_sdl_get_window_position(screen->window);
+    struct sc_size window_size = sc_sdl_get_window_size(screen->window);
 
     struct sc_size optimal_size =
         get_optimal_size(window_size, screen->content_size, false);
@@ -770,11 +734,14 @@ sc_screen_resize_to_fit(struct sc_screen *screen) {
     // Center the window related to the device screen
     assert(optimal_size.width <= window_size.width);
     assert(optimal_size.height <= window_size.height);
-    uint32_t new_x = point.x + (window_size.width - optimal_size.width) / 2;
-    uint32_t new_y = point.y + (window_size.height - optimal_size.height) / 2;
 
-    SDL_SetWindowSize(screen->window, optimal_size.width, optimal_size.height);
-    SDL_SetWindowPosition(screen->window, new_x, new_y);
+    struct sc_point new_position = {
+        .x = point.x + (window_size.width - optimal_size.width) / 2,
+        .y = point.y + (window_size.height - optimal_size.height) / 2,
+    };
+
+    sc_sdl_set_window_size(screen->window, optimal_size);
+    sc_sdl_set_window_position(screen->window, new_position);
     LOGD("Resized to optimal size: %ux%u", optimal_size.width,
                                            optimal_size.height);
 }
@@ -783,33 +750,21 @@ void
 sc_screen_resize_to_pixel_perfect(struct sc_screen *screen) {
     assert(screen->video);
 
-    if (screen->fullscreen || screen->minimized) {
+    if (!is_windowed(screen)) {
         return;
     }
 
-    if (screen->maximized) {
-        SDL_RestoreWindow(screen->window);
-        screen->maximized = false;
-    }
-
     struct sc_size content_size = screen->content_size;
-    SDL_SetWindowSize(screen->window, content_size.width, content_size.height);
+    sc_sdl_set_window_size(screen->window, content_size);
     LOGD("Resized to pixel-perfect: %ux%u", content_size.width,
                                             content_size.height);
 }
 
 bool
 sc_screen_handle_event(struct sc_screen *screen, const SDL_Event *event) {
+    // !video implies !has_video_window
+    assert(screen->video || !screen->has_video_window);
     switch (event->type) {
-        case SC_EVENT_SCREEN_INIT_SIZE: {
-            // The initial size is passed via screen->frame_size
-            bool ok = sc_screen_init_size(screen);
-            if (!ok) {
-                LOGE("Could not initialize screen size");
-                return false;
-            }
-            return true;
-        }
         case SC_EVENT_NEW_FRAME: {
             bool ok = sc_screen_update_frame(screen);
             if (!ok) {
@@ -818,45 +773,34 @@ sc_screen_handle_event(struct sc_screen *screen, const SDL_Event *event) {
             }
             return true;
         }
-        case SDL_WINDOWEVENT:
-            if (!screen->video
-                    && event->window.event == SDL_WINDOWEVENT_EXPOSED) {
+        case SDL_EVENT_WINDOW_EXPOSED:
+            if (!screen->video) {
                 sc_screen_render_novideo(screen);
+            } else if (screen->has_video_window) {
+                sc_screen_render(screen, true);
             }
-
-            // !video implies !has_frame
-            assert(screen->video || !screen->has_frame);
-            if (!screen->has_frame) {
-                // Do nothing
-                return true;
+            return true;
+        case SDL_EVENT_WINDOW_PIXEL_SIZE_CHANGED:
+            if (screen->has_video_window) {
+                sc_screen_render(screen, true);
             }
-            switch (event->window.event) {
-                case SDL_WINDOWEVENT_EXPOSED:
-                    sc_screen_render(screen, true);
-                    break;
-                case SDL_WINDOWEVENT_SIZE_CHANGED:
-                    sc_screen_render(screen, true);
-                    break;
-                case SDL_WINDOWEVENT_MAXIMIZED:
-                    screen->maximized = true;
-                    break;
-                case SDL_WINDOWEVENT_MINIMIZED:
-                    screen->minimized = true;
-                    break;
-                case SDL_WINDOWEVENT_RESTORED:
-                    if (screen->fullscreen) {
-                        // On Windows, in maximized+fullscreen, disabling
-                        // fullscreen mode unexpectedly triggers the "restored"
-                        // then "maximized" events, leaving the window in a
-                        // weird state (maximized according to the events, but
-                        // not maximized visually).
-                        break;
-                    }
-                    screen->maximized = false;
-                    screen->minimized = false;
-                    apply_pending_resize(screen);
-                    sc_screen_render(screen, true);
-                    break;
+            return true;
+        case SDL_EVENT_WINDOW_RESTORED:
+            if (screen->has_video_window && is_windowed(screen)) {
+                apply_pending_resize(screen);
+                sc_screen_render(screen, true);
+            }
+            return true;
+        case SDL_EVENT_WINDOW_ENTER_FULLSCREEN:
+            LOGD("Switched to fullscreen mode");
+            assert(screen->has_video_window);
+            return true;
+        case SDL_EVENT_WINDOW_LEAVE_FULLSCREEN:
+            LOGD("Switched to windowed mode");
+            assert(screen->has_video_window);
+            if (is_windowed(screen)) {
+                apply_pending_resize(screen);
+                sc_screen_render(screen, true);
             }
             return true;
     }
@@ -937,9 +881,15 @@ sc_screen_convert_window_to_frame_coords(struct sc_screen *screen,
 void
 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);
-    SDL_GL_GetDrawableSize(screen->window, &dw, &dh);
+
+    struct sc_size window_size = sc_sdl_get_window_size(screen->window);
+    int64_t ww = window_size.width;
+    int64_t wh = window_size.height;
+
+    struct sc_size drawable_size =
+        sc_sdl_get_window_size_in_pixels(screen->window);
+    int64_t dw = drawable_size.width;
+    int64_t dh = drawable_size.height;
 
     // scale for HiDPI (64 bits for intermediate multiplications)
     *x = (int64_t) *x * dw / ww;

app/src/screen.h

@@ -5,7 +5,7 @@
 
 #include <stdbool.h>
 #include <stdint.h>
-#include <SDL2/SDL.h>
+#include <SDL3/SDL.h>
 #include <libavcodec/avcodec.h>
 #include <libavutil/frame.h>
 #include <libavutil/pixfmt.h>
@@ -61,9 +61,7 @@ struct sc_screen {
     // rectangle of the content (excluding black borders)
     struct SDL_Rect rect;
     bool has_frame;
-    bool fullscreen;
-    bool maximized;
-    bool minimized;
+    bool has_video_window;
 
     AVFrame *frame;
 

app/src/shortcut_mod.h

@@ -6,11 +6,11 @@
 #include <assert.h>
 #include <stdbool.h>
 #include <stdint.h>
-#include <SDL2/SDL_keycode.h>
+#include <SDL3/SDL_keycode.h>
 
 #include "options.h"
 
-#define SC_SDL_SHORTCUT_MODS_MASK (KMOD_CTRL | KMOD_ALT | KMOD_GUI)
+#define SC_SDL_SHORTCUT_MODS_MASK (SDL_KMOD_CTRL | SDL_KMOD_ALT | SDL_KMOD_GUI)
 
 // input: OR of enum sc_shortcut_mod
 // output: OR of SDL_Keymod
@@ -18,22 +18,22 @@ static inline uint16_t
 sc_shortcut_mods_to_sdl(uint8_t shortcut_mods) {
     uint16_t sdl_mod = 0;
     if (shortcut_mods & SC_SHORTCUT_MOD_LCTRL) {
-        sdl_mod |= KMOD_LCTRL;
+        sdl_mod |= SDL_KMOD_LCTRL;
     }
     if (shortcut_mods & SC_SHORTCUT_MOD_RCTRL) {
-        sdl_mod |= KMOD_RCTRL;
+        sdl_mod |= SDL_KMOD_RCTRL;
     }
     if (shortcut_mods & SC_SHORTCUT_MOD_LALT) {
-        sdl_mod |= KMOD_LALT;
+        sdl_mod |= SDL_KMOD_LALT;
     }
     if (shortcut_mods & SC_SHORTCUT_MOD_RALT) {
-        sdl_mod |= KMOD_RALT;
+        sdl_mod |= SDL_KMOD_RALT;
     }
     if (shortcut_mods & SC_SHORTCUT_MOD_LSUPER) {
-        sdl_mod |= KMOD_LGUI;
+        sdl_mod |= SDL_KMOD_LGUI;
     }
     if (shortcut_mods & SC_SHORTCUT_MOD_RSUPER) {
-        sdl_mod |= KMOD_RGUI;
+        sdl_mod |= SDL_KMOD_RGUI;
     }
     return sdl_mod;
 }
@@ -50,12 +50,12 @@ sc_shortcut_mods_is_shortcut_mod(uint16_t sdl_shortcut_mods, uint16_t sdl_mod) {
 static inline bool
 sc_shortcut_mods_is_shortcut_key(uint16_t sdl_shortcut_mods,
                                  SDL_Keycode keycode) {
-    return (sdl_shortcut_mods & KMOD_LCTRL && keycode == SDLK_LCTRL)
-        || (sdl_shortcut_mods & KMOD_RCTRL && keycode == SDLK_RCTRL)
-        || (sdl_shortcut_mods & KMOD_LALT  && keycode == SDLK_LALT)
-        || (sdl_shortcut_mods & KMOD_RALT  && keycode == SDLK_RALT)
-        || (sdl_shortcut_mods & KMOD_LGUI  && keycode == SDLK_LGUI)
-        || (sdl_shortcut_mods & KMOD_RGUI  && keycode == SDLK_RGUI);
+    return (sdl_shortcut_mods & SDL_KMOD_LCTRL && keycode == SDLK_LCTRL)
+        || (sdl_shortcut_mods & SDL_KMOD_RCTRL && keycode == SDLK_RCTRL)
+        || (sdl_shortcut_mods & SDL_KMOD_LALT  && keycode == SDLK_LALT)
+        || (sdl_shortcut_mods & SDL_KMOD_RALT  && keycode == SDLK_RALT)
+        || (sdl_shortcut_mods & SDL_KMOD_LGUI  && keycode == SDLK_LGUI)
+        || (sdl_shortcut_mods & SDL_KMOD_RGUI  && keycode == SDLK_RGUI);
 }
 
 #endif

app/src/uhid/gamepad_uhid.c

@@ -3,7 +3,7 @@
 #include <assert.h>
 #include <inttypes.h>
 #include <string.h>
-#include <SDL2/SDL_gamecontroller.h>
+#include <SDL3/SDL_gamepad.h>
 
 #include "hid/hid_gamepad.h"
 #include "input_events.h"
@@ -74,10 +74,9 @@ sc_gamepad_processor_process_gamepad_added(struct sc_gamepad_processor *gp,
         return;
     }
 
-    SDL_GameController* game_controller =
-        SDL_GameControllerFromInstanceID(event->gamepad_id);
-    assert(game_controller);
-    const char *name = SDL_GameControllerName(game_controller);
+    SDL_Gamepad *sdl_gamepad = SDL_GetGamepadFromID(event->gamepad_id);
+    assert(sdl_gamepad);
+    const char *name = SDL_GetGamepadName(sdl_gamepad);
     LOGI("Gamepad added: [%" PRIu32 "] %s", event->gamepad_id, name);
 
     sc_gamepad_uhid_send_open(gamepad, &hid_open);

app/src/uhid/keyboard_uhid.c

@@ -2,8 +2,8 @@
 
 #include <assert.h>
 #include <string.h>
-#include <SDL2/SDL_keyboard.h>
-#include <SDL2/SDL_keycode.h>
+#include <SDL3/SDL_keyboard.h>
+#include <SDL3/SDL_keycode.h>
 
 #include "util/log.h"
 #include "util/thread.h"

app/src/uhid/mouse_uhid.c

@@ -55,7 +55,10 @@ sc_mouse_processor_process_mouse_scroll(struct sc_mouse_processor *mp,
     struct sc_mouse_uhid *mouse = DOWNCAST(mp);
 
     struct sc_hid_input hid_input;
-    sc_hid_mouse_generate_input_from_scroll(&hid_input, event);
+    if (!sc_hid_mouse_generate_input_from_scroll(&mouse->hid, &hid_input,
+                                                 event)) {
+        return;
+    }
 
     sc_mouse_uhid_send_input(mouse, &hid_input, "mouse scroll");
 }
@@ -63,6 +66,8 @@ sc_mouse_processor_process_mouse_scroll(struct sc_mouse_processor *mp,
 bool
 sc_mouse_uhid_init(struct sc_mouse_uhid *mouse,
                    struct sc_controller *controller) {
+    sc_hid_mouse_init(&mouse->hid);
+
     mouse->controller = controller;
 
     static const struct sc_mouse_processor_ops ops = {

app/src/uhid/mouse_uhid.h

@@ -4,11 +4,13 @@
 #include <stdbool.h>
 
 #include "controller.h"
+#include "hid/hid_mouse.h"
 #include "trait/mouse_processor.h"
 
 struct sc_mouse_uhid {
     struct sc_mouse_processor mouse_processor; // mouse processor trait
 
+    struct sc_hid_mouse hid;
     struct sc_controller *controller;
 };
 

app/src/usb/mouse_aoa.c

@@ -42,7 +42,10 @@ sc_mouse_processor_process_mouse_scroll(struct sc_mouse_processor *mp,
     struct sc_mouse_aoa *mouse = DOWNCAST(mp);
 
     struct sc_hid_input hid_input;
-    sc_hid_mouse_generate_input_from_scroll(&hid_input, event);
+    if (!sc_hid_mouse_generate_input_from_scroll(&mouse->hid, &hid_input,
+                                                 event)) {
+        return;
+    }
 
     if (!sc_aoa_push_input(mouse->aoa, &hid_input)) {
         LOGW("Could not push AOA HID input (mouse scroll)");
@@ -62,6 +65,8 @@ sc_mouse_aoa_init(struct sc_mouse_aoa *mouse, struct sc_aoa *aoa) {
         return false;
     }
 
+    sc_hid_mouse_init(&mouse->hid);
+
     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,

app/src/usb/mouse_aoa.h

@@ -6,11 +6,13 @@
 #include <stdbool.h>
 
 #include "usb/aoa_hid.h"
+#include "hid/hid_mouse.h"
 #include "trait/mouse_processor.h"
 
 struct sc_mouse_aoa {
     struct sc_mouse_processor mouse_processor; // mouse processor trait
 
+    struct sc_hid_mouse hid;
     struct sc_aoa *aoa;
 };
 

app/src/usb/scrcpy_otg.c

@@ -3,7 +3,7 @@
 #include <assert.h>
 #include <stdbool.h>
 #include <stdlib.h>
-#include <SDL2/SDL.h>
+#include <SDL3/SDL.h>
 
 #ifdef _WIN32
 # include "adb/adb.h"
@@ -45,7 +45,7 @@ event_loop(struct scrcpy_otg *s) {
             case SC_EVENT_AOA_OPEN_ERROR:
                 LOGE("AOA open error");
                 return SCRCPY_EXIT_FAILURE;
-            case SDL_QUIT:
+            case SDL_EVENT_QUIT:
                 LOGD("User requested to quit");
                 return SCRCPY_EXIT_SUCCESS;
             default:
@@ -63,23 +63,19 @@ scrcpy_otg(struct scrcpy_options *options) {
 
     const char *serial = options->serial;
 
-    if (!SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "1")) {
-        LOGW("Could not enable linear filtering");
-    }
-
     if (!SDL_SetHint(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS, "1")) {
         LOGW("Could not allow joystick background events");
     }
 
     // Minimal SDL initialization
-    if (SDL_Init(SDL_INIT_EVENTS)) {
+    if (!SDL_Init(SDL_INIT_EVENTS)) {
         LOGE("Could not initialize SDL: %s", SDL_GetError());
         return SCRCPY_EXIT_FAILURE;
     }
 
     if (options->gamepad_input_mode != SC_GAMEPAD_INPUT_MODE_DISABLED) {
-        if (SDL_Init(SDL_INIT_GAMECONTROLLER)) {
-            LOGE("Could not initialize SDL controller: %s", SDL_GetError());
+        if (!SDL_Init(SDL_INIT_GAMEPAD)) {
+            LOGE("Could not initialize SDL gamepad: %s", SDL_GetError());
             // Not fatal, keyboard/mouse should still work
         }
     }

app/src/usb/screen_otg.c

@@ -7,14 +7,19 @@
 #include "options.h"
 #include "util/acksync.h"
 #include "util/log.h"
+#include "util/sdl.h"
 
 static void
 sc_screen_otg_render(struct sc_screen_otg *screen) {
-    SDL_RenderClear(screen->renderer);
+    sc_sdl_render_clear(screen->renderer);
     if (screen->texture) {
-        SDL_RenderCopy(screen->renderer, screen->texture, NULL, NULL);
+        bool ok =
+            SDL_RenderTexture(screen->renderer, screen->texture, NULL, NULL);
+        if (!ok) {
+            LOGW("Could not render texture: %s", SDL_GetError());
+        }
     }
-    SDL_RenderPresent(screen->renderer);
+    sc_sdl_render_present(screen->renderer);
 }
 
 bool
@@ -34,7 +39,7 @@ sc_screen_otg_init(struct sc_screen_otg *screen,
     int width = params->window_width ? params->window_width : 256;
     int height = params->window_height ? params->window_height : 256;
 
-    uint32_t window_flags = SDL_WINDOW_ALLOW_HIGHDPI;
+    uint32_t window_flags = SDL_WINDOW_HIGH_PIXEL_DENSITY;
     if (params->always_on_top) {
         window_flags |= SDL_WINDOW_ALWAYS_ON_TOP;
     }
@@ -42,13 +47,14 @@ sc_screen_otg_init(struct sc_screen_otg *screen,
         window_flags |= SDL_WINDOW_BORDERLESS;
     }
 
-    screen->window = SDL_CreateWindow(title, x, y, width, height, window_flags);
+    screen->window =
+        sc_sdl_create_window(title, x, y, width, height, window_flags);
     if (!screen->window) {
         LOGE("Could not create window: %s", SDL_GetError());
         return false;
     }
 
-    screen->renderer = SDL_CreateRenderer(screen->window, -1, 0);
+    screen->renderer = SDL_CreateRenderer(screen->window, NULL);
     if (!screen->renderer) {
         LOGE("Could not create renderer: %s", SDL_GetError());
         goto error_destroy_window;
@@ -57,9 +63,15 @@ sc_screen_otg_init(struct sc_screen_otg *screen,
     SDL_Surface *icon = scrcpy_icon_load();
 
     if (icon) {
-        SDL_SetWindowIcon(screen->window, icon);
+        bool ok = SDL_SetWindowIcon(screen->window, icon);
+        if (!ok) {
+            LOGW("Could not set window icon: %s", SDL_GetError());
+        }
 
-        if (SDL_RenderSetLogicalSize(screen->renderer, icon->w, icon->h)) {
+        ok = SDL_SetRenderLogicalPresentation(screen->renderer, icon->w,
+                                              icon->h,
+                                         SDL_LOGICAL_PRESENTATION_LETTERBOX);
+        if (!ok) {
             LOGW("Could not set renderer logical size: %s", SDL_GetError());
             // don't fail
         }
@@ -108,10 +120,10 @@ sc_screen_otg_process_key(struct sc_screen_otg *screen,
 
     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),
+        .keycode = sc_keycode_from_sdl(event->key),
+        .scancode = sc_scancode_from_sdl(event->scancode),
         .repeat = event->repeat,
-        .mods_state = sc_mods_state_from_sdl(event->keysym.mod),
+        .mods_state = sc_mods_state_from_sdl(event->mod),
     };
 
     assert(kp->ops->process_key);
@@ -175,34 +187,34 @@ sc_screen_otg_process_mouse_wheel(struct sc_screen_otg *screen,
 
 static void
 sc_screen_otg_process_gamepad_device(struct sc_screen_otg *screen,
-                                     const SDL_ControllerDeviceEvent *event) {
+                                     const SDL_GamepadDeviceEvent *event) {
     assert(screen->gamepad);
     struct sc_gamepad_processor *gp = &screen->gamepad->gamepad_processor;
 
-    if (event->type == SDL_CONTROLLERDEVICEADDED) {
-        SDL_GameController *gc = SDL_GameControllerOpen(event->which);
-        if (!gc) {
-            LOGW("Could not open game controller");
+    if (event->type == SDL_EVENT_GAMEPAD_ADDED) {
+        SDL_Gamepad *sdl_gamepad = SDL_OpenGamepad(event->which);
+        if (!sdl_gamepad) {
+            LOGW("Could not open gamepad");
             return;
         }
 
-        SDL_Joystick *joystick = SDL_GameControllerGetJoystick(gc);
+        SDL_Joystick *joystick = SDL_GetGamepadJoystick(sdl_gamepad);
         if (!joystick) {
-            LOGW("Could not get controller joystick");
-            SDL_GameControllerClose(gc);
+            LOGW("Could not get gamepad joystick");
+            SDL_CloseGamepad(sdl_gamepad);
             return;
         }
 
         struct sc_gamepad_device_event evt = {
-            .gamepad_id = SDL_JoystickInstanceID(joystick),
+            .gamepad_id = SDL_GetJoystickID(joystick),
         };
         gp->ops->process_gamepad_added(gp, &evt);
-    } else if (event->type == SDL_CONTROLLERDEVICEREMOVED) {
+    } else if (event->type == SDL_EVENT_GAMEPAD_REMOVED) {
         SDL_JoystickID id = event->which;
 
-        SDL_GameController *gc = SDL_GameControllerFromInstanceID(id);
-        if (gc) {
-            SDL_GameControllerClose(gc);
+        SDL_Gamepad *sdl_gamepad = SDL_GetGamepadFromID(id);
+        if (sdl_gamepad) {
+            SDL_CloseGamepad(sdl_gamepad);
         } else {
             LOGW("Unknown gamepad device removed");
         }
@@ -216,7 +228,7 @@ sc_screen_otg_process_gamepad_device(struct sc_screen_otg *screen,
 
 static void
 sc_screen_otg_process_gamepad_axis(struct sc_screen_otg *screen,
-                                   const SDL_ControllerAxisEvent *event) {
+                                   const SDL_GamepadAxisEvent *event) {
     assert(screen->gamepad);
     struct sc_gamepad_processor *gp = &screen->gamepad->gamepad_processor;
 
@@ -235,7 +247,7 @@ sc_screen_otg_process_gamepad_axis(struct sc_screen_otg *screen,
 
 static void
 sc_screen_otg_process_gamepad_button(struct sc_screen_otg *screen,
-                                     const SDL_ControllerButtonEvent *event) {
+                                     const SDL_GamepadButtonEvent *event) {
     assert(screen->gamepad);
     struct sc_gamepad_processor *gp = &screen->gamepad->gamepad_processor;
 
@@ -246,7 +258,7 @@ sc_screen_otg_process_gamepad_button(struct sc_screen_otg *screen,
 
     struct sc_gamepad_button_event evt = {
         .gamepad_id = event->which,
-        .action = sc_action_from_sdl_controllerbutton_type(event->type),
+        .action = sc_action_from_sdl_gamepad_button_type(event->type),
         .button = button,
     };
     gp->ops->process_gamepad_button(gp, &evt);
@@ -260,59 +272,55 @@ sc_screen_otg_handle_event(struct sc_screen_otg *screen, SDL_Event *event) {
     }
 
     switch (event->type) {
-        case SDL_WINDOWEVENT:
-            switch (event->window.event) {
-                case SDL_WINDOWEVENT_EXPOSED:
-                    sc_screen_otg_render(screen);
-                    break;
-            }
-            return;
-        case SDL_KEYDOWN:
+        case SDL_EVENT_WINDOW_EXPOSED:
+            sc_screen_otg_render(screen);
+            break;
+        case SDL_EVENT_KEY_DOWN:
             if (screen->keyboard) {
                 sc_screen_otg_process_key(screen, &event->key);
             }
             break;
-        case SDL_KEYUP:
+        case SDL_EVENT_KEY_UP:
             if (screen->keyboard) {
                 sc_screen_otg_process_key(screen, &event->key);
             }
             break;
-        case SDL_MOUSEMOTION:
+        case SDL_EVENT_MOUSE_MOTION:
             if (screen->mouse) {
                 sc_screen_otg_process_mouse_motion(screen, &event->motion);
             }
             break;
-        case SDL_MOUSEBUTTONDOWN:
+        case SDL_EVENT_MOUSE_BUTTON_DOWN:
             if (screen->mouse) {
                 sc_screen_otg_process_mouse_button(screen, &event->button);
             }
             break;
-        case SDL_MOUSEBUTTONUP:
+        case SDL_EVENT_MOUSE_BUTTON_UP:
             if (screen->mouse) {
                 sc_screen_otg_process_mouse_button(screen, &event->button);
             }
             break;
-        case SDL_MOUSEWHEEL:
+        case SDL_EVENT_MOUSE_WHEEL:
             if (screen->mouse) {
                 sc_screen_otg_process_mouse_wheel(screen, &event->wheel);
             }
             break;
-        case SDL_CONTROLLERDEVICEADDED:
-        case SDL_CONTROLLERDEVICEREMOVED:
+        case SDL_EVENT_GAMEPAD_ADDED:
+        case SDL_EVENT_GAMEPAD_REMOVED:
             // Handle device added or removed even if paused
             if (screen->gamepad) {
-                sc_screen_otg_process_gamepad_device(screen, &event->cdevice);
+                sc_screen_otg_process_gamepad_device(screen, &event->gdevice);
             }
             break;
-        case SDL_CONTROLLERAXISMOTION:
+        case SDL_EVENT_GAMEPAD_AXIS_MOTION:
             if (screen->gamepad) {
-                sc_screen_otg_process_gamepad_axis(screen, &event->caxis);
+                sc_screen_otg_process_gamepad_axis(screen, &event->gaxis);
             }
             break;
-        case SDL_CONTROLLERBUTTONDOWN:
-        case SDL_CONTROLLERBUTTONUP:
+        case SDL_EVENT_GAMEPAD_BUTTON_DOWN:
+        case SDL_EVENT_GAMEPAD_BUTTON_UP:
             if (screen->gamepad) {
-                sc_screen_otg_process_gamepad_button(screen, &event->cbutton);
+                sc_screen_otg_process_gamepad_button(screen, &event->gbutton);
             }
             break;
     }

app/src/usb/screen_otg.h

@@ -5,7 +5,7 @@
 
 #include <stdbool.h>
 #include <stdint.h>
-#include <SDL2/SDL.h>
+#include <SDL3/SDL.h>
 
 #include "mouse_capture.h"
 #include "usb/gamepad_aoa.h"

app/src/util/log.c

@@ -50,13 +50,13 @@ log_level_sdl_to_sc(SDL_LogPriority priority) {
 void
 sc_set_log_level(enum sc_log_level level) {
     SDL_LogPriority sdl_log = log_level_sc_to_sdl(level);
-    SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, sdl_log);
-    SDL_LogSetPriority(SDL_LOG_CATEGORY_CUSTOM, sdl_log);
+    SDL_SetLogPriority(SDL_LOG_CATEGORY_APPLICATION, sdl_log);
+    SDL_SetLogPriority(SDL_LOG_CATEGORY_CUSTOM, sdl_log);
 }
 
 enum sc_log_level
 sc_get_log_level(void) {
-    SDL_LogPriority sdl_log = SDL_LogGetPriority(SDL_LOG_CATEGORY_APPLICATION);
+    SDL_LogPriority sdl_log = SDL_GetLogPriority(SDL_LOG_CATEGORY_APPLICATION);
     return log_level_sdl_to_sc(sdl_log);
 }
 
@@ -128,7 +128,7 @@ sc_av_log_callback(void *avcl, int level, const char *fmt, va_list vl) {
     free(local_fmt);
 }
 
-static const char *const sc_sdl_log_priority_names[SDL_NUM_LOG_PRIORITIES] = {
+static const char *const sc_sdl_log_priority_names[SDL_LOG_PRIORITY_COUNT] = {
     [SDL_LOG_PRIORITY_VERBOSE] = "VERBOSE",
     [SDL_LOG_PRIORITY_DEBUG] = "DEBUG",
     [SDL_LOG_PRIORITY_INFO] = "INFO",
@@ -144,14 +144,14 @@ sc_sdl_log_print(void *userdata, int category, SDL_LogPriority priority,
     (void) category;
 
     FILE *out = priority < SDL_LOG_PRIORITY_WARN ? stdout : stderr;
-    assert(priority < SDL_NUM_LOG_PRIORITIES);
+    assert(priority < SDL_LOG_PRIORITY_COUNT);
     const char *prio_name = sc_sdl_log_priority_names[priority];
     fprintf(out, "%s: %s\n", prio_name, message);
 }
 
 void
 sc_log_configure(void) {
-    SDL_LogSetOutputFunction(sc_sdl_log_print, NULL);
+    SDL_SetLogOutputFunction(sc_sdl_log_print, NULL);
     // Redirect FFmpeg logs to SDL logs
     av_log_set_callback(sc_av_log_callback);
 }

app/src/util/log.h

@@ -3,7 +3,7 @@
 
 #include "common.h"
 
-#include <SDL2/SDL_log.h>
+#include <SDL3/SDL_log.h>
 
 #include "options.h"
 

app/src/util/net.c

@@ -2,6 +2,7 @@
 
 #include <assert.h>
 #include <stdio.h>
+#include <stdlib.h>
 
 #ifdef _WIN32
 # include <ws2tcpip.h>

app/src/util/sdl.c

@@ -0,0 +1,149 @@
+#include "sdl.h"
+
+#include <assert.h>
+#include <stdlib.h>
+
+#include "util/log.h"
+
+SDL_Window *
+sc_sdl_create_window(const char *title, int64_t x, int64_t y, int64_t width,
+                     int64_t height, int64_t flags) {
+    SDL_Window *window = NULL;
+
+    SDL_PropertiesID props = SDL_CreateProperties();
+    if (!props) {
+        return NULL;
+    }
+
+    bool ok =
+        SDL_SetStringProperty(props, SDL_PROP_WINDOW_CREATE_TITLE_STRING,
+                              title);
+    ok &= SDL_SetNumberProperty(props, SDL_PROP_WINDOW_CREATE_X_NUMBER, x);
+    ok &= SDL_SetNumberProperty(props, SDL_PROP_WINDOW_CREATE_Y_NUMBER, y);
+    ok &= SDL_SetNumberProperty(props, SDL_PROP_WINDOW_CREATE_WIDTH_NUMBER,
+                                width);
+    ok &= SDL_SetNumberProperty(props, SDL_PROP_WINDOW_CREATE_HEIGHT_NUMBER,
+                                height);
+    ok &= SDL_SetNumberProperty(props, SDL_PROP_WINDOW_CREATE_FLAGS_NUMBER,
+                                flags);
+
+    if (!ok) {
+        SDL_DestroyProperties(props);
+        return NULL;
+    }
+
+    window = SDL_CreateWindowWithProperties(props);
+    SDL_DestroyProperties(props);
+    return window;
+}
+
+struct sc_size
+sc_sdl_get_window_size(SDL_Window *window) {
+    int width;
+    int height;
+    bool ok = SDL_GetWindowSize(window, &width, &height);
+    if (!ok) {
+        LOGE("Could not get window size: %s", SDL_GetError());
+        LOGE("Please report the error");
+        // fatal error
+        abort();
+    }
+
+    struct sc_size size = {
+        .width = width,
+        .height = height,
+    };
+    return size;
+}
+
+struct sc_size
+sc_sdl_get_window_size_in_pixels(SDL_Window *window) {
+    int width;
+    int height;
+    bool ok = SDL_GetWindowSizeInPixels(window, &width, &height);
+    if (!ok) {
+        LOGE("Could not get window size: %s", SDL_GetError());
+        LOGE("Please report the error");
+        // fatal error
+        abort();
+    }
+
+    struct sc_size size = {
+        .width = width,
+        .height = height,
+    };
+    return size;
+}
+
+void
+sc_sdl_set_window_size(SDL_Window *window, struct sc_size size) {
+    bool ok = SDL_SetWindowSize(window, size.width, size.height);
+    if (!ok) {
+        LOGE("Could not set window size: %s", SDL_GetError());
+        assert(!"unexpected");
+    }
+}
+
+struct sc_point
+sc_sdl_get_window_position(SDL_Window *window) {
+    int x;
+    int y;
+    bool ok = SDL_GetWindowPosition(window, &x, &y);
+    if (!ok) {
+        LOGE("Could not get window position: %s", SDL_GetError());
+        LOGE("Please report the error");
+        // fatal error
+        abort();
+    }
+
+    struct sc_point point = {
+        .x = x,
+        .y = y,
+    };
+    return point;
+}
+
+void
+sc_sdl_set_window_position(SDL_Window *window, struct sc_point point) {
+    bool ok = SDL_SetWindowPosition(window, point.x, point.y);
+    if (!ok) {
+        LOGE("Could not set window position: %s", SDL_GetError());
+        assert(!"unexpected");
+    }
+}
+
+void
+sc_sdl_show_window(SDL_Window *window) {
+    bool ok = SDL_ShowWindow(window);
+    if (!ok) {
+        LOGE("Could not show window: %s", SDL_GetError());
+        assert(!"unexpected");
+    }
+}
+
+void
+sc_sdl_hide_window(SDL_Window *window) {
+    bool ok = SDL_HideWindow(window);
+    if (!ok) {
+        LOGE("Could not hide window: %s", SDL_GetError());
+        assert(!"unexpected");
+    }
+}
+
+bool
+sc_sdl_render_clear(SDL_Renderer *renderer) {
+    bool ok = SDL_RenderClear(renderer);
+    if (!ok) {
+        LOGW("Could not clear rendering: %s", SDL_GetError());
+    }
+    return ok;
+}
+
+void
+sc_sdl_render_present(SDL_Renderer *renderer) {
+    bool ok = SDL_RenderPresent(renderer);
+    if (!ok) {
+        LOGE("Could not render: %s", SDL_GetError());
+        assert(!"unexpected");
+    }
+}

app/src/util/sdl.h

@@ -0,0 +1,43 @@
+#ifndef SC_SDL_H
+#define SC_SDL_H
+
+#include "common.h"
+
+#include <stdint.h>
+#include <SDL3/SDL_render.h>
+#include <SDL3/SDL_video.h>
+
+#include "coords.h"
+
+SDL_Window *
+sc_sdl_create_window(const char *title, int64_t x, int64_t y, int64_t width,
+                     int64_t height, int64_t flags);
+
+struct sc_size
+sc_sdl_get_window_size(SDL_Window *window);
+
+struct sc_size
+sc_sdl_get_window_size_in_pixels(SDL_Window *window);
+
+void
+sc_sdl_set_window_size(SDL_Window *window, struct sc_size size);
+
+struct sc_point
+sc_sdl_get_window_position(SDL_Window *window);
+
+void
+sc_sdl_set_window_position(SDL_Window *window, struct sc_point point);
+
+void
+sc_sdl_show_window(SDL_Window *window);
+
+void
+sc_sdl_hide_window(SDL_Window *window);
+
+bool
+sc_sdl_render_clear(SDL_Renderer *renderer);
+
+void
+sc_sdl_render_present(SDL_Renderer *renderer);
+
+#endif

app/src/util/thread.c

@@ -4,7 +4,7 @@
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
-#include <SDL2/SDL_thread.h>
+#include <SDL3/SDL_mutex.h>
 
 #include "util/log.h"
 
@@ -31,11 +31,7 @@ static SDL_ThreadPriority
 to_sdl_thread_priority(enum sc_thread_priority priority) {
     switch (priority) {
         case SC_THREAD_PRIORITY_TIME_CRITICAL:
-#ifdef SCRCPY_SDL_HAS_THREAD_PRIORITY_TIME_CRITICAL
             return SDL_THREAD_PRIORITY_TIME_CRITICAL;
-#else
-            // fall through
-#endif
         case SC_THREAD_PRIORITY_HIGH:
             return SDL_THREAD_PRIORITY_HIGH;
         case SC_THREAD_PRIORITY_NORMAL:
@@ -51,8 +47,8 @@ to_sdl_thread_priority(enum sc_thread_priority priority) {
 bool
 sc_thread_set_priority(enum sc_thread_priority priority) {
     SDL_ThreadPriority sdl_priority = to_sdl_thread_priority(priority);
-    int r = SDL_SetThreadPriority(sdl_priority);
-    if (r) {
+    bool ok = SDL_SetCurrentThreadPriority(sdl_priority);
+    if (!ok) {
         LOGD("Could not set thread priority: %s", SDL_GetError());
         return false;
     }
@@ -67,7 +63,7 @@ sc_thread_join(sc_thread *thread, int *status) {
 
 bool
 sc_mutex_init(sc_mutex *mutex) {
-    SDL_mutex *sdl_mutex = SDL_CreateMutex();
+    SDL_Mutex *sdl_mutex = SDL_CreateMutex();
     if (!sdl_mutex) {
         LOG_OOM();
         return false;
@@ -89,40 +85,25 @@ void
 sc_mutex_lock(sc_mutex *mutex) {
     // SDL mutexes are recursive, but we don't want to use recursive mutexes
     assert(!sc_mutex_held(mutex));
-    int r = SDL_LockMutex(mutex->mutex);
+    SDL_LockMutex(mutex->mutex);
 #ifndef NDEBUG
-    if (r) {
-        LOGE("Could not lock mutex: %s", SDL_GetError());
-        abort();
-    }
-
     atomic_store_explicit(&mutex->locker, sc_thread_get_id(),
                           memory_order_relaxed);
-#else
-    (void) r;
 #endif
 }
 
 void
 sc_mutex_unlock(sc_mutex *mutex) {
-#ifndef NDEBUG
     assert(sc_mutex_held(mutex));
+#ifndef NDEBUG
     atomic_store_explicit(&mutex->locker, 0, memory_order_relaxed);
 #endif
-    int r = SDL_UnlockMutex(mutex->mutex);
-#ifndef NDEBUG
-    if (r) {
-        LOGE("Could not lock mutex: %s", SDL_GetError());
-        abort();
-    }
-#else
-    (void) r;
-#endif
+    SDL_UnlockMutex(mutex->mutex);
 }
 
 sc_thread_id
 sc_thread_get_id(void) {
-    return SDL_ThreadID();
+    return SDL_GetCurrentThreadID();
 }
 
 #ifndef NDEBUG
@@ -136,7 +117,7 @@ sc_mutex_held(struct sc_mutex *mutex) {
 
 bool
 sc_cond_init(sc_cond *cond) {
-    SDL_cond *sdl_cond = SDL_CreateCond();
+    SDL_Condition *sdl_cond = SDL_CreateCondition();
     if (!sdl_cond) {
         LOG_OOM();
         return false;
@@ -148,22 +129,15 @@ sc_cond_init(sc_cond *cond) {
 
 void
 sc_cond_destroy(sc_cond *cond) {
-    SDL_DestroyCond(cond->cond);
+    SDL_DestroyCondition(cond->cond);
 }
 
 void
 sc_cond_wait(sc_cond *cond, sc_mutex *mutex) {
-    int r = SDL_CondWait(cond->cond, mutex->mutex);
+    SDL_WaitCondition(cond->cond, mutex->mutex);
 #ifndef NDEBUG
-    if (r) {
-        LOGE("Could not wait on condition: %s", SDL_GetError());
-        abort();
-    }
-
     atomic_store_explicit(&mutex->locker, sc_thread_get_id(),
                           memory_order_relaxed);
-#else
-    (void) r;
 #endif
 }
 
@@ -177,44 +151,22 @@ sc_cond_timedwait(sc_cond *cond, sc_mutex *mutex, sc_tick deadline) {
     // Round up to the next millisecond to guarantee that the deadline is
     // reached when returning due to timeout
     uint32_t ms = SC_TICK_TO_MS(deadline - now + SC_TICK_FROM_MS(1) - 1);
-    int r = SDL_CondWaitTimeout(cond->cond, mutex->mutex, ms);
+    bool signaled = SDL_WaitConditionTimeout(cond->cond, mutex->mutex, ms);
 #ifndef NDEBUG
-    if (r < 0) {
-        LOGE("Could not wait on condition with timeout: %s", SDL_GetError());
-        abort();
-    }
-
     atomic_store_explicit(&mutex->locker, sc_thread_get_id(),
                           memory_order_relaxed);
 #endif
-    assert(r == 0 || r == SDL_MUTEX_TIMEDOUT);
     // The deadline is reached on timeout
-    assert(r != SDL_MUTEX_TIMEDOUT || sc_tick_now() >= deadline);
-    return r == 0;
+    assert(signaled || sc_tick_now() >= deadline);
+    return signaled;
 }
 
 void
 sc_cond_signal(sc_cond *cond) {
-    int r = SDL_CondSignal(cond->cond);
-#ifndef NDEBUG
-    if (r) {
-        LOGE("Could not signal a condition: %s", SDL_GetError());
-        abort();
-    }
-#else
-    (void) r;
-#endif
+    SDL_SignalCondition(cond->cond);
 }
 
 void
 sc_cond_broadcast(sc_cond *cond) {
-    int r = SDL_CondBroadcast(cond->cond);
-#ifndef NDEBUG
-    if (r) {
-        LOGE("Could not broadcast a condition: %s", SDL_GetError());
-        abort();
-    }
-#else
-    (void) r;
-#endif
+    SDL_BroadcastCondition(cond->cond);
 }

app/src/util/thread.h

@@ -10,8 +10,8 @@
 
 /* Forward declarations */
 typedef struct SDL_Thread SDL_Thread;
-typedef struct SDL_mutex SDL_mutex;
-typedef struct SDL_cond SDL_cond;
+typedef struct SDL_Mutex SDL_Mutex;
+typedef struct SDL_Condition SDL_Condition;
 
 typedef int sc_thread_fn(void *);
 typedef unsigned sc_thread_id;
@@ -29,14 +29,14 @@ enum sc_thread_priority {
 };
 
 typedef struct sc_mutex {
-    SDL_mutex *mutex;
+    SDL_Mutex *mutex;
 #ifndef NDEBUG
     sc_atomic_thread_id locker;
 #endif
 } sc_mutex;
 
 typedef struct sc_cond {
-    SDL_cond *cond;
+    SDL_Condition *cond;
 } sc_cond;
 
 extern sc_thread_id SC_MAIN_THREAD_ID;

app/src/util/vecdeque.h

@@ -191,7 +191,8 @@ sc_vecdeque_reallocdata_(void *ptr, size_t newcap, size_t item_size,
 
     size_t right_len = MIN(size, oldcap - oldorigin);
     assert(right_len);
-    memcpy(newptr, (char *) ptr + (oldorigin * item_size), right_len * item_size);
+    memcpy(newptr, (char *) ptr + (oldorigin * item_size),
+           right_len * item_size);
 
     if (size > right_len) {
         memcpy((char *) newptr + (right_len * item_size), ptr,

app/src/version.c

@@ -10,17 +10,20 @@
 #ifdef HAVE_USB
 # include <libusb-1.0/libusb.h>
 #endif
-#include <SDL2/SDL_version.h>
+#include <SDL3/SDL_version.h>
 
 void
 scrcpy_print_version(void) {
     printf("\nDependencies (compiled / linked):\n");
 
-    SDL_version sdl;
-    SDL_GetVersion(&sdl);
+    int sdl = SDL_GetVersion();
     printf(" - SDL: %u.%u.%u / %u.%u.%u\n",
-           SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL,
-           (unsigned) sdl.major, (unsigned) sdl.minor, (unsigned) sdl.patch);
+           SDL_MAJOR_VERSION,
+           SDL_MINOR_VERSION,
+           SDL_MICRO_VERSION,
+           SDL_VERSIONNUM_MAJOR(sdl),
+           SDL_VERSIONNUM_MINOR(sdl),
+           SDL_VERSIONNUM_MICRO(sdl));
 
     unsigned avcodec = avcodec_version();
     printf(" - libavcodec: %u.%u.%u / %u.%u.%u\n",

app/tests/test_control_msg_serialize.c

@@ -127,8 +127,8 @@ static void test_serialize_inject_scroll_event(void) {
                     .height = 1920,
                 },
             },
-            .hscroll = 1,
-            .vscroll = -1,
+            .hscroll = 16,
+            .vscroll = -16,
             .buttons = 1,
         },
     };
@@ -141,8 +141,8 @@ static void test_serialize_inject_scroll_event(void) {
         SC_CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT,
         0x00, 0x00, 0x01, 0x04, 0x00, 0x00, 0x04, 0x02, // 260 1026
         0x04, 0x38, 0x07, 0x80, // 1080 1920
-        0x7F, 0xFF, // 1 (float encoded as i16)
-        0x80, 0x00, // -1 (float encoded as i16)
+        0x7F, 0xFF, // 16 (float encoded as i16 in the range [-16, 16])
+        0x80, 0x00, // -16 (float encoded as i16 in the range [-16, 16])
         0x00, 0x00, 0x00, 0x01, // 1
     };
     assert(!memcmp(buf, expected, sizeof(expected)));
@@ -411,6 +411,26 @@ static void test_serialize_open_hard_keyboard(void) {
     assert(!memcmp(buf, expected, sizeof(expected)));
 }
 
+static void test_serialize_start_app(void) {
+    struct sc_control_msg msg = {
+        .type = SC_CONTROL_MSG_TYPE_START_APP,
+        .start_app = {
+            .name = "firefox",
+        },
+    };
+
+    uint8_t buf[SC_CONTROL_MSG_MAX_SIZE];
+    size_t size = sc_control_msg_serialize(&msg, buf);
+    assert(size == 9);
+
+    const uint8_t expected[] = {
+        SC_CONTROL_MSG_TYPE_START_APP,
+        7, // length
+        'f', 'i', 'r', 'e', 'f', 'o', 'x', // app name
+    };
+    assert(!memcmp(buf, expected, sizeof(expected)));
+}
+
 static void test_serialize_reset_video(void) {
     struct sc_control_msg msg = {
         .type = SC_CONTROL_MSG_TYPE_RESET_VIDEO,
@@ -448,6 +468,7 @@ int main(int argc, char *argv[]) {
     test_serialize_uhid_input();
     test_serialize_uhid_destroy();
     test_serialize_open_hard_keyboard();
+    test_serialize_start_app();
     test_serialize_reset_video();
     return 0;
 }

build.gradle

@@ -7,7 +7,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:8.7.1'
+        classpath 'com.android.tools.build:gradle:8.13.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

container/Dockerfile

@@ -0,0 +1,73 @@
+# Build with:
+#     podman build -t scrcpy-builder .
+#
+# Run with:
+#     podman run \
+#       -v PATH_TO_SCRCPY:/home/debian/scrcpy \
+#       --userns=keep-id \
+#       -it scrcpy-builder \
+#       bash
+
+FROM debian:trixie
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update \
+ && apt-get install -y --no-install-recommends \
+    sudo wget unzip gcc git pkg-config meson ninja-build cmake \
+    libsdl3-dev libavcodec-dev libavdevice-dev libavformat-dev libavutil-dev \
+    libswresample-dev libusb-1.0-0-dev openjdk-21-jdk \
+    mingw-w64 mingw-w64-tools libz-mingw-w64-dev
+
+RUN groupadd -g 1000 debian \
+ && useradd -m -u 1000 -g 1000 -s /bin/bash debian
+RUN echo "debian ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
+
+ENV ANDROID_HOME=/opt/android/sdk
+RUN mkdir -p "$ANDROID_HOME" \
+ && chown debian:debian "$ANDROID_HOME"
+
+USER debian
+WORKDIR /home/debian
+
+ENV CMDLINETOOLS_URL=https://dl.google.com/android/repository/commandlinetools-linux-13114758_latest.zip
+ENV CMDLINETOOLS_SHA256=7ec965280a073311c339e571cd5de778b9975026cfcbe79f2b1cdcb1e15317ee
+
+RUN wget -q "$CMDLINETOOLS_URL" -O cmdlinetools.zip \
+ && echo "$CMDLINETOOLS_SHA256  cmdlinetools.zip" | sha256sum -c
+
+RUN mkdir tmp \
+ && unzip -q cmdlinetools.zip -d tmp \
+ && mkdir -p "$ANDROID_HOME/cmdline-tools" \
+ && mv tmp/cmdline-tools "$ANDROID_HOME/cmdline-tools/latest" \
+ && rmdir tmp \
+ && rm cmdlinetools.zip
+# To get the licence hash, run manually: "$ANDROID_HOME"/cmdline-tools/latest/bin/sdkmanager --licenses
+# Build-tools 35 is still needed for the current AGP version
+RUN mkdir -p "$ANDROID_HOME/licenses" \
+ && echo 24333f8a63b6825ea9c5514f83c2829b004d1fee > "$ANDROID_HOME/licenses/android-sdk-license" \
+ && $ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager "platform-tools" "platforms;android-36" "build-tools;35.0.0" "build-tools;36.0.0"
+
+# For scrcpy build scripts
+ENV GRADLE_VERSION=8.14.3
+ENV GRADLE_HOME=/opt/gradle-$GRADLE_VERSION
+ENV GRADLE_URL=https://services.gradle.org/distributions/gradle-$GRADLE_VERSION-bin.zip
+ENV GRADLE_SHA256=bd71102213493060956ec229d946beee57158dbd89d0e62b91bca0fa2c5f3531
+ENV GRADLE=gradle
+ENV PATH=$GRADLE_HOME/bin:$PATH
+
+USER root
+RUN wget -q "$GRADLE_URL" -O gradle.zip \
+ && echo "$GRADLE_SHA256  gradle.zip" | sha256sum -c
+RUN unzip -q gradle.zip -d /opt \
+ && rm gradle.zip
+
+USER debian
+
+# Pre-download gradle dependencies for scrcpy
+RUN mkdir -p /home/debian/fake-scrcpy/app
+COPY fake.gradle /home/debian/fake-scrcpy/build.gradle
+COPY fake_app.gradle /home/debian/fake-scrcpy/app/build.gradle
+RUN echo "include ':app'" > /home/debian/fake-scrcpy/settings.gradle \
+ && gradle -p /home/debian/fake-scrcpy dependencies androidDependencies --no-daemon \
+ && rm -rf /home/debian/fake-scrcpy

container/fake.gradle

@@ -0,0 +1,17 @@
+// Fake build.gradle to pre-download gradle dependencies
+buildscript {
+    repositories {
+        google()
+        mavenCentral()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:8.13.0'
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}

container/fake_app.gradle

@@ -0,0 +1,21 @@
+// Fake app/build.gradle to pre-download gradle dependencies
+apply plugin: 'com.android.application'
+apply plugin: 'checkstyle'
+
+android {
+    buildToolsVersion = "36.0.0"
+    namespace = "com.genymobile.scrcpy"
+    compileSdk 36
+    defaultConfig {
+        minSdkVersion 21
+        targetSdkVersion 36
+    }
+}
+
+checkstyle {
+    toolVersion = '10.12.5'
+}
+
+dependencies {
+    testImplementation 'junit:junit:4.13.2'
+}

doc/build.md

@@ -30,13 +30,13 @@ the following files to a directory accessible from your `PATH`:
 
 It is also available in scrcpy releases.
 
-The client requires [FFmpeg] and [LibSDL2]. Just follow the instructions.
+The client requires [FFmpeg] and [SDL]. Just follow the instructions.
 
 [adb]: https://developer.android.com/studio/command-line/adb.html
 [platform-tools]: https://developer.android.com/studio/releases/platform-tools.html
 [platform-tools-windows]: https://dl.google.com/android/repository/platform-tools-latest-windows.zip
 [ffmpeg]: https://en.wikipedia.org/wiki/FFmpeg
-[LibSDL2]: https://en.wikipedia.org/wiki/Simple_DirectMedia_Layer
+[SDL]: https://en.wikipedia.org/wiki/Simple_DirectMedia_Layer
 
 
 
@@ -50,10 +50,10 @@ Install the required packages from your package manager.
 
 ```bash
 # runtime dependencies
-sudo apt install ffmpeg libsdl2-2.0-0 adb libusb-1.0-0
+sudo apt install ffmpeg libsdl3-0 adb libusb-1.0-0
 
 # client build dependencies
-sudo apt install gcc git pkg-config meson ninja-build libsdl2-dev \
+sudo apt install gcc git pkg-config meson ninja-build libsdl3-dev \
                  libavcodec-dev libavdevice-dev libavformat-dev libavutil-dev \
                  libswresample-dev libusb-1.0-0-dev
 
@@ -77,7 +77,7 @@ pip3 install meson
 sudo dnf install https://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm
 
 # client build dependencies
-sudo dnf install SDL2-devel ffms2-devel libusb1-devel libavdevice-free-devel meson gcc make
+sudo dnf install SDL3-devel ffms2-devel libusb1-devel libavdevice-free-devel meson gcc make
 
 # server build dependencies
 sudo dnf install java-devel
@@ -121,7 +121,7 @@ install the required packages:
 
 ```bash
 # runtime dependencies
-pacman -S mingw-w64-x86_64-SDL2 \
+pacman -S mingw-w64-x86_64-sdl3 \
           mingw-w64-x86_64-ffmpeg \
           mingw-w64-x86_64-libusb
 
@@ -136,7 +136,7 @@ For a 32 bits version, replace `x86_64` by `i686`:
 
 ```bash
 # runtime dependencies
-pacman -S mingw-w64-i686-SDL2 \
+pacman -S mingw-w64-i686-sdl3 \
           mingw-w64-i686-ffmpeg \
           mingw-w64-i686-libusb
 
@@ -162,7 +162,7 @@ Install the packages with [Homebrew]:
 
 ```bash
 # runtime dependencies
-brew install sdl2 ffmpeg libusb
+brew install sdl3 ffmpeg libusb
 
 # client build dependencies
 brew install pkg-config meson
@@ -233,10 +233,10 @@ install` must be run as root)._
 
 #### Option 2: Use prebuilt server
 
- - [`scrcpy-server-v3.2`][direct-scrcpy-server]  
-   <sub>SHA-256: `b920e0ea01936bf2482f4ba2fa985c22c13c621999e3d33b45baa5acfc1ea3d0`</sub>
+ - [`scrcpy-server-v3.3.4`][direct-scrcpy-server]  
+   <sub>SHA-256: `8588238c9a5a00aa542906b6ec7e6d5541d9ffb9b5d0f6e1bc0e365e2303079e`</sub>
 
-[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v3.2/scrcpy-server-v3.2
+[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v3.3.4/scrcpy-server-v3.3.4
 
 Download the prebuilt server somewhere, and specify its path during the Meson
 configuration:
@@ -271,7 +271,7 @@ This installs several files:
  - `/usr/local/bin/scrcpy` (main app)
  - `/usr/local/share/scrcpy/scrcpy-server` (server to push to the device)
  - `/usr/local/share/man/man1/scrcpy.1` (manpage)
- - `/usr/local/share/icons/hicolor/256x256/apps/icon.png` (app icon)
+ - `/usr/local/share/icons/hicolor/256x256/apps/scrcpy.png` (app icon)
  - `/usr/local/share/zsh/site-functions/_scrcpy` (zsh completion)
  - `/usr/local/share/bash-completion/completions/scrcpy` (bash completion)
 

doc/linux.md

@@ -6,11 +6,11 @@
 
 Download a static build of the [latest release]:
 
- - [`scrcpy-linux-x86_64-v3.2.tar.gz`][direct-linux-x86_64] (x86_64)  
-   <sub>SHA-256: `df6cf000447428fcde322022848d655ff0211d98688d0f17cbbf21be9c1272be`</sub>
+ - [`scrcpy-linux-x86_64-v3.3.4.tar.gz`][direct-linux-x86_64] (x86_64)  
+   <sub>SHA-256: `0305d98c06178c67e12427bbf340c436d0d58c9e2a39bf9ffbbf8f54d7ef95a5`</sub>
 
 [latest release]: https://github.com/Genymobile/scrcpy/releases/latest
-[direct-linux-x86_64]: https://github.com/Genymobile/scrcpy/releases/download/v3.2/scrcpy-linux-x86_64-v3.2.tar.gz
+[direct-linux-x86_64]: https://github.com/Genymobile/scrcpy/releases/download/v3.3.4/scrcpy-linux-x86_64-v3.3.4.tar.gz
 
 and extract it.
 
@@ -39,8 +39,8 @@ First, you need to install the required packages:
 
 ```bash
 # for Debian/Ubuntu
-sudo apt install ffmpeg libsdl2-2.0-0 adb wget \
-                 gcc git pkg-config meson ninja-build libsdl2-dev \
+sudo apt install ffmpeg libsdl3-0 adb wget \
+                 gcc git pkg-config meson ninja-build libsdl3-dev \
                  libavcodec-dev libavdevice-dev libavformat-dev libavutil-dev \
                  libswresample-dev libusb-1.0-0 libusb-1.0-0-dev
 ```

doc/macos.md

@@ -6,15 +6,14 @@
 
 Download a static build of the [latest release]:
 
- - [`scrcpy-macos-aarch64-v3.2.tar.gz`][direct-macos-aarch64] (aarch64)  
-   <sub>SHA-256: `f6d1f3c5f74d4d46f5080baa5b56b69f5edbf698d47e0cf4e2a1fd5058f9507b`</sub>
-
- - [`scrcpy-macos-x86_64-v3.2.tar.gz`][direct-macos-x86_64] (x86_64)  
-   <sub>SHA-256: `e337d5cf0ba4e1281699c338ce5f104aee96eb7b2893dc851399b6643eb4044e`</sub>
+ - [`scrcpy-macos-aarch64-v3.3.4.tar.gz`][direct-macos-aarch64] (aarch64)  
+   <sub>SHA-256: `8fef43520405dd523c74e1530ac68febcc5a405ea89712c874936675da8513dd`</sub>
+ - [`scrcpy-macos-x86_64-v3.3.4.tar.gz`][direct-macos-x86_64] (x86_64)  
+   <sub>SHA-256: `cf9b3453a33279b6009dfb256b1a84c374bd4c30a71edd74bacab28d72a5d929`</sub>
 
 [latest release]: https://github.com/Genymobile/scrcpy/releases/latest
-[direct-macos-aarch64]: https://github.com/Genymobile/scrcpy/releases/download/v3.2/scrcpy-macos-aarch64-v3.2.tar.gz
-[direct-macos-x86_64]: https://github.com/Genymobile/scrcpy/releases/download/v3.2/scrcpy-macos-x86_64-v3.2.tar.gz
+[direct-macos-aarch64]: https://github.com/Genymobile/scrcpy/releases/download/v3.3.4/scrcpy-macos-aarch64-v3.3.4.tar.gz
+[direct-macos-x86_64]: https://github.com/Genymobile/scrcpy/releases/download/v3.3.4/scrcpy-macos-x86_64-v3.3.4.tar.gz
 
 and extract it.
 

doc/windows.md

@@ -6,14 +6,14 @@
 
 Download the [latest release]:
 
- - [`scrcpy-win64-v3.2.zip`][direct-win64] (64-bit)  
-   <sub>SHA-256: `eaa27133e0520979873ba57ad651560a4cc2618373bd05450b23a84d32beafd0`</sub>
- - [`scrcpy-win32-v3.2.zip`][direct-win32] (32-bit)  
-   <sub>SHA-256: `4a3407d7f0c2c8a03e22a12cf0b5e1e585a5056fe23c8e5cf3252207c6fa8357`</sub>
+ - [`scrcpy-win64-v3.3.4.zip`][direct-win64] (64-bit)  
+   <sub>SHA-256: `d8a155b7c180b7ca4cdadd40712b8750b63f3aab48cb5b8a2a39ac2d0d4c5d38`</sub>
+ - [`scrcpy-win32-v3.3.4.zip`][direct-win32] (32-bit)  
+   <sub>SHA-256: `393f7d5379dabd8aacc41184755c3d0df975cd2861353cb7a8d50e0835e2eb72`</sub>
 
 [latest release]: https://github.com/Genymobile/scrcpy/releases/latest
-[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v3.2/scrcpy-win64-v3.2.zip
-[direct-win32]: https://github.com/Genymobile/scrcpy/releases/download/v3.2/scrcpy-win32-v3.2.zip
+[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v3.3.4/scrcpy-win64-v3.3.4.zip
+[direct-win32]: https://github.com/Genymobile/scrcpy/releases/download/v3.3.4/scrcpy-win32-v3.3.4.zip
 
 and extract it.
 

gradle/wrapper/gradle-wrapper.properties

@@ -1,7 +1,7 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.9-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.3-bin.zip
 # https://gradle.org/release-checksums/
-distributionSha256Sum=d725d707bfabd4dfdc958c624003b3c80accc03f7037b5122c4b1d0ef15cecab
+distributionSha256Sum=bd71102213493060956ec229d946beee57158dbd89d0e62b91bca0fa2c5f3531
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

install_release.sh

@@ -2,8 +2,8 @@
 set -e
 
 BUILDDIR=build-auto
-PREBUILT_SERVER_URL=https://github.com/Genymobile/scrcpy/releases/download/v3.2/scrcpy-server-v3.2
-PREBUILT_SERVER_SHA256=b920e0ea01936bf2482f4ba2fa985c22c13c621999e3d33b45baa5acfc1ea3d0
+PREBUILT_SERVER_URL=https://github.com/Genymobile/scrcpy/releases/download/v3.3.4/scrcpy-server-v3.3.4
+PREBUILT_SERVER_SHA256=8588238c9a5a00aa542906b6ec7e6d5541d9ffb9b5d0f6e1bc0e365e2303079e
 
 echo "[scrcpy] Downloading prebuilt server..."
 wget "$PREBUILT_SERVER_URL" -O scrcpy-server

meson.build

@@ -1,5 +1,5 @@
 project('scrcpy', 'c',
-        version: '3.2',
+        version: '3.3.4',
         meson_version: '>= 0.49',
         default_options: [
             'c_std=c11',

server/build.gradle

@@ -1,15 +1,15 @@
 apply plugin: 'com.android.application'
 
 android {
-    namespace 'com.genymobile.scrcpy'
-    compileSdk 35
+    namespace = 'com.genymobile.scrcpy'
+    compileSdk 36
     defaultConfig {
-        applicationId "com.genymobile.scrcpy"
+        applicationId = "com.genymobile.scrcpy"
         minSdkVersion 21
-        targetSdkVersion 35
-        versionCode 30200
-        versionName "3.2"
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        targetSdkVersion 36
+        versionCode 30304
+        versionName "3.3.4"
+        testInstrumentationRunner = "android.support.test.runner.AndroidJUnitRunner"
     }
     buildTypes {
         release {
@@ -18,8 +18,11 @@ android {
         }
     }
     buildFeatures {
-        buildConfig true
-        aidl true
+        buildConfig = true
+        aidl = true
+    }
+    lint {
+        disable 'UseRequiresApi'
     }
 }
 

server/build_without_gradle.sh

@@ -12,10 +12,10 @@
 set -e
 
 SCRCPY_DEBUG=false
-SCRCPY_VERSION_NAME=3.2
+SCRCPY_VERSION_NAME=3.3.4
 
-PLATFORM=${ANDROID_PLATFORM:-35}
-BUILD_TOOLS=${ANDROID_BUILD_TOOLS:-35.0.0}
+PLATFORM=${ANDROID_PLATFORM:-36}
+BUILD_TOOLS=${ANDROID_BUILD_TOOLS:-36.0.0}
 PLATFORM_TOOLS="$ANDROID_HOME/platforms/android-$PLATFORM"
 BUILD_TOOLS_DIR="$ANDROID_HOME/build-tools/$BUILD_TOOLS"
 
@@ -86,7 +86,7 @@ javac -encoding UTF-8 -bootclasspath "$ANDROID_JAR" \
 echo "Dexing..."
 cd "$CLASSES_DIR"
 
-if [[ $PLATFORM -lt 31 ]]
+if [[ "${PLATFORM%%.*}" -lt 31 ]]
 then
     # use dx
     "$BUILD_TOOLS_DIR/dx" --dex --output "$BUILD_DIR/classes.dex" \

server/src/main/aidl/android/view/IDisplayWindowListener.aidl

@@ -48,19 +48,4 @@ oneway interface IDisplayWindowListener {
      * Called when a display is removed from the hierarchy.
      */
     void onDisplayRemoved(int displayId);
-
-    /**
-     * Called when fixed rotation is started on a display.
-     */
-    void onFixedRotationStarted(int displayId, int newRotation);
-
-    /**
-     * Called when the previous fixed rotation on a display is finished.
-     */
-    void onFixedRotationFinished(int displayId);
-
-    /**
-     * Called when the keep clear ares on a display have changed.
-     */
-    void onKeepClearAreasChanged(int displayId, in List<Rect> restricted, in List<Rect> unrestricted);
 }

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

@@ -7,6 +7,7 @@ import com.genymobile.scrcpy.util.SettingsException;
 import com.genymobile.scrcpy.wrappers.ServiceManager;
 
 import android.os.BatteryManager;
+import android.os.Looper;
 import android.system.ErrnoException;
 import android.system.Os;
 
@@ -179,6 +180,11 @@ public final class CleanUp {
         }
     }
 
+    @SuppressWarnings("deprecation")
+    private static void prepareMainLooper() {
+        Looper.prepareMainLooper();
+    }
+
     public static void main(String... args) {
         try {
             // Start a new session to avoid being terminated along with the server process on some devices
@@ -188,6 +194,10 @@ public final class CleanUp {
         }
         unlinkSelf();
 
+        // Needed for workarounds
+        prepareMainLooper();
+        Workarounds.apply();
+
         int displayId = Integer.parseInt(args[0]);
         int restoreStayOn = Integer.parseInt(args[1]);
         boolean disableShowTouches = Boolean.parseBoolean(args[2]);

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

@@ -5,7 +5,6 @@ import com.genymobile.scrcpy.wrappers.ServiceManager;
 import android.annotation.SuppressLint;
 import android.annotation.TargetApi;
 import android.content.AttributionSource;
-import android.content.ClipboardManager;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.content.ContextWrapper;
@@ -91,6 +90,11 @@ public final class FakeContext extends ContextWrapper {
         return this;
     }
 
+    @Override
+    public Context createPackageContext(String packageName, int flags) {
+        return this;
+    }
+
     @Override
     public ContentResolver getContentResolver() {
         return contentResolver;
@@ -104,9 +108,13 @@ public final class FakeContext extends ContextWrapper {
             return null;
         }
 
-        if (Context.CLIPBOARD_SERVICE.equals(name)) {
+        // "semclipboard" is a Samsung-internal service
+        // See:
+        //  - <https://github.com/Genymobile/scrcpy/issues/6224>
+        //  - <https://github.com/Genymobile/scrcpy/issues/6523>
+        if (Context.CLIPBOARD_SERVICE.equals(name) || "semclipboard".equals(name) || Context.ACTIVITY_SERVICE.equals(name)) {
             try {
-                Field field = ClipboardManager.class.getDeclaredField("mContext");
+                Field field = service.getClass().getDeclaredField("mContext");
                 field.setAccessible(true);
                 field.set(service, this);
             } catch (ReflectiveOperationException e) {

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

@@ -414,6 +414,7 @@ public class Options {
                     if (!value.isEmpty()) {
                         options.audioEncoder = value;
                     }
+                    break;
                 case "power_off_on_close":
                     options.powerOffScreenOnClose = Boolean.parseBoolean(value);
                     break;

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

@@ -24,8 +24,10 @@ import com.genymobile.scrcpy.video.SurfaceCapture;
 import com.genymobile.scrcpy.video.SurfaceEncoder;
 import com.genymobile.scrcpy.video.VideoSource;
 
+import android.annotation.SuppressLint;
 import android.os.Build;
 import android.os.Looper;
+import android.system.Os;
 
 import java.io.File;
 import java.io.IOException;
@@ -96,7 +98,6 @@ public final class Server {
         boolean audio = options.getAudio();
         boolean sendDummyByte = options.getSendDummyByte();
 
-        prepareMainLooper();
         Workarounds.apply();
 
         List<AsyncProcessor> asyncProcessors = new ArrayList<>();
@@ -199,6 +200,7 @@ public final class Server {
         Looper.prepare();
         synchronized (Looper.class) {
             try {
+                @SuppressLint("DiscouragedPrivateApi")
                 Field field = Looper.class.getDeclaredField("sMainLooper");
                 field.setAccessible(true);
                 field.set(null, Looper.myLooper());
@@ -224,10 +226,18 @@ public final class Server {
     }
 
     private static void internalMain(String... args) throws Exception {
+        Thread.UncaughtExceptionHandler defaultHandler = Thread.getDefaultUncaughtExceptionHandler();
         Thread.setDefaultUncaughtExceptionHandler((t, e) -> {
             Ln.e("Exception on thread " + t, e);
+            if (defaultHandler != null) {
+                defaultHandler.uncaughtException(t, e);
+            }
         });
 
+        dropRootPrivileges();
+
+        prepareMainLooper();
+
         Options options = Options.parse(args);
 
         Ln.disableSystemStreams();
@@ -266,4 +276,17 @@ public final class Server {
             // Do not print stack trace, a user-friendly error-message has already been logged
         }
     }
+
+    @SuppressWarnings("deprecation")
+    private static void dropRootPrivileges() {
+        try {
+            if (Os.getuid() == 0) {
+                // Copy-paste does not work with root user
+                // <https://github.com/Genymobile/scrcpy/issues/6224>
+                Os.setuid(2000);
+            }
+        } catch (Exception e) {
+            Ln.w("Cannot set UID", e);
+        }
+    }
 }

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

@@ -6,9 +6,9 @@ import com.genymobile.scrcpy.util.Ln;
 import android.annotation.SuppressLint;
 import android.annotation.TargetApi;
 import android.app.Application;
+import android.app.Instrumentation;
 import android.content.AttributionSource;
 import android.content.Context;
-import android.content.ContextWrapper;
 import android.content.pm.ApplicationInfo;
 import android.media.AudioAttributes;
 import android.media.AudioManager;
@@ -103,10 +103,7 @@ public final class Workarounds {
 
     private static void fillAppContext() {
         try {
-            Application app = new Application();
-            Field baseField = ContextWrapper.class.getDeclaredField("mBase");
-            baseField.setAccessible(true);
-            baseField.set(app, FakeContext.get());
+            Application app = Instrumentation.newApplication(Application.class, FakeContext.get());
 
             // activityThread.mInitialApplication = app;
             Field mInitialApplicationField = ACTIVITY_THREAD_CLASS.getDeclaredField("mInitialApplication");

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

@@ -112,8 +112,9 @@ public class ControlMessageReader {
 
     private ControlMessage parseInjectScrollEvent() throws IOException {
         Position position = parsePosition();
-        float hScroll = Binary.i16FixedPointToFloat(dis.readShort());
-        float vScroll = Binary.i16FixedPointToFloat(dis.readShort());
+        // Binary.i16FixedPointToFloat() decodes values assuming the full range is [-1, 1], but the actual range is [-16, 16].
+        float hScroll = Binary.i16FixedPointToFloat(dis.readShort()) * 16;
+        float vScroll = Binary.i16FixedPointToFloat(dis.readShort()) * 16;
         int buttons = dis.readInt();
         return ControlMessage.createInjectScrollEvent(position, hScroll, vScroll, buttons);
     }

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

@@ -114,9 +114,10 @@ public class Controller implements AsyncProcessor, VirtualDisplayListener {
             Ln.w("Input events are not supported for secondary displays before Android 10");
         }
 
+        // Make sure the clipboard manager is always created from the main thread (even if clipboardAutosync is disabled)
+        ClipboardManager clipboardManager = ServiceManager.getClipboardManager();
         if (clipboardAutosync) {
             // If control and autosync are enabled, synchronize Android clipboard to the computer automatically
-            ClipboardManager clipboardManager = ServiceManager.getClipboardManager();
             if (clipboardManager != null) {
                 clipboardManager.addPrimaryClipChangedListener(() -> {
                     if (isSettingClipboard.get()) {

server/src/main/java/com/genymobile/scrcpy/opengl/OpenGLRunner.java

@@ -1,6 +1,7 @@
 package com.genymobile.scrcpy.opengl;
 
 import com.genymobile.scrcpy.device.Size;
+import com.genymobile.scrcpy.util.Threads;
 
 import android.graphics.SurfaceTexture;
 import android.opengl.EGL14;
@@ -15,6 +16,7 @@ import android.os.Handler;
 import android.os.HandlerThread;
 import android.view.Surface;
 
+import java.util.concurrent.Callable;
 import java.util.concurrent.Semaphore;
 
 public final class OpenGLRunner {
@@ -80,31 +82,17 @@ public final class OpenGLRunner {
     public Surface start(Size inputSize, Size outputSize, Surface outputSurface) throws OpenGLException {
         initOnce();
 
-        // Simulate CompletableFuture, but working for all Android versions
-        final Semaphore sem = new Semaphore(0);
-        Throwable[] throwableRef = new Throwable[1];
-
         // The whole OpenGL execution must be performed on a Handler, so that SurfaceTexture.setOnFrameAvailableListener() works correctly.
         // See <https://github.com/Genymobile/scrcpy/issues/5444>
-        handler.post(() -> {
-            try {
-                run(inputSize, outputSize, outputSurface);
-            } catch (Throwable throwable) {
-                throwableRef[0] = throwable;
-            } finally {
-                sem.release();
-            }
-        });
-
         try {
-            sem.acquire();
-        } catch (InterruptedException e) {
-            // Behave as if this method call was synchronous
-            Thread.currentThread().interrupt();
-        }
-
-        Throwable throwable = throwableRef[0];
-        if (throwable != null) {
+            Threads.executeSynchronouslyOn(handler, new Callable<Void>() {
+                @Override
+                public Void call() throws Exception {
+                    run(inputSize, outputSize, outputSurface);
+                    return null;
+                }
+            });
+        } catch (Throwable throwable) {
             if (throwable instanceof OpenGLException) {
                 throw (OpenGLException) throwable;
             }

server/src/main/java/com/genymobile/scrcpy/util/Ln.java

@@ -74,9 +74,11 @@ public final class Ln {
     public static void w(String message, Throwable throwable) {
         if (isEnabled(Level.WARN)) {
             Log.w(TAG, message, throwable);
-            CONSOLE_ERR.print(PREFIX + "WARN: " + message + '\n');
-            if (throwable != null) {
-                throwable.printStackTrace(CONSOLE_ERR);
+            synchronized (CONSOLE_ERR) {
+                CONSOLE_ERR.print(PREFIX + "WARN: " + message + '\n');
+                if (throwable != null) {
+                    throwable.printStackTrace(CONSOLE_ERR);
+                }
             }
         }
     }
@@ -88,9 +90,11 @@ public final class Ln {
     public static void e(String message, Throwable throwable) {
         if (isEnabled(Level.ERROR)) {
             Log.e(TAG, message, throwable);
-            CONSOLE_ERR.print(PREFIX + "ERROR: " + message + '\n');
-            if (throwable != null) {
-                throwable.printStackTrace(CONSOLE_ERR);
+            synchronized (CONSOLE_ERR) {
+                CONSOLE_ERR.print(PREFIX + "ERROR: " + message + '\n');
+                if (throwable != null) {
+                    throwable.printStackTrace(CONSOLE_ERR);
+                }
             }
         }
     }

server/src/main/java/com/genymobile/scrcpy/util/Settings.java

@@ -1,13 +1,8 @@
 package com.genymobile.scrcpy.util;
 
-import com.genymobile.scrcpy.AndroidVersions;
 import com.genymobile.scrcpy.wrappers.ContentProvider;
 import com.genymobile.scrcpy.wrappers.ServiceManager;
 
-import android.os.Build;
-
-import java.io.IOException;
-
 public final class Settings {
 
     public static final String TABLE_SYSTEM = ContentProvider.TABLE_SYSTEM;
@@ -18,66 +13,26 @@ public final class Settings {
         /* not instantiable */
     }
 
-    private static void execSettingsPut(String table, String key, String value) throws SettingsException {
-        try {
-            Command.exec("settings", "put", table, key, value);
-        } catch (IOException | InterruptedException e) {
-            throw new SettingsException("put", table, key, value, e);
-        }
-    }
-
-    private static String execSettingsGet(String table, String key) throws SettingsException {
-        try {
-            return Command.execReadLine("settings", "get", table, key);
-        } catch (IOException | InterruptedException e) {
-            throw new SettingsException("get", table, key, null, e);
-        }
-    }
-
     public static String getValue(String table, String key) throws SettingsException {
-        if (Build.VERSION.SDK_INT <= AndroidVersions.API_30_ANDROID_11) {
-            // on Android >= 12, it always fails: <https://github.com/Genymobile/scrcpy/issues/2788>
-            try (ContentProvider provider = ServiceManager.getActivityManager().createSettingsProvider()) {
-                return provider.getValue(table, key);
-            } catch (SettingsException e) {
-                Ln.w("Could not get settings value via ContentProvider, fallback to settings process", e);
-            }
+        try (ContentProvider provider = ServiceManager.getActivityManager().createSettingsProvider()) {
+            return provider.getValue(table, key);
         }
-
-        return execSettingsGet(table, key);
     }
 
     public static void putValue(String table, String key, String value) throws SettingsException {
-        if (Build.VERSION.SDK_INT <= AndroidVersions.API_30_ANDROID_11) {
-            // on Android >= 12, it always fails: <https://github.com/Genymobile/scrcpy/issues/2788>
-            try (ContentProvider provider = ServiceManager.getActivityManager().createSettingsProvider()) {
-                provider.putValue(table, key, value);
-            } catch (SettingsException e) {
-                Ln.w("Could not put settings value via ContentProvider, fallback to settings process", e);
-            }
+        try (ContentProvider provider = ServiceManager.getActivityManager().createSettingsProvider()) {
+            provider.putValue(table, key, value);
         }
 
-        execSettingsPut(table, key, value);
     }
 
     public static String getAndPutValue(String table, String key, String value) throws SettingsException {
-        if (Build.VERSION.SDK_INT <= AndroidVersions.API_30_ANDROID_11) {
-            // on Android >= 12, it always fails: <https://github.com/Genymobile/scrcpy/issues/2788>
-            try (ContentProvider provider = ServiceManager.getActivityManager().createSettingsProvider()) {
-                String oldValue = provider.getValue(table, key);
-                if (!value.equals(oldValue)) {
-                    provider.putValue(table, key, value);
-                }
-                return oldValue;
-            } catch (SettingsException e) {
-                Ln.w("Could not get and put settings value via ContentProvider, fallback to settings process", e);
+        try (ContentProvider provider = ServiceManager.getActivityManager().createSettingsProvider()) {
+            String oldValue = provider.getValue(table, key);
+            if (!value.equals(oldValue)) {
+                provider.putValue(table, key, value);
             }
+            return oldValue;
         }
-
-        String oldValue = getValue(table, key);
-        if (!value.equals(oldValue)) {
-            putValue(table, key, value);
-        }
-        return oldValue;
     }
 }

server/src/main/java/com/genymobile/scrcpy/util/Threads.java

@@ -0,0 +1,43 @@
+package com.genymobile.scrcpy.util;
+
+import android.os.Handler;
+
+import java.util.concurrent.Callable;
+import java.util.concurrent.Semaphore;
+
+public final class Threads {
+    private Threads() {
+        // not instantiable
+    }
+
+    public static <T> T executeSynchronouslyOn(Handler handler, Callable<T> callable) throws Throwable {
+        // Simulate CompletableFuture, but working for all Android versions
+        final Semaphore sem = new Semaphore(0);
+        @SuppressWarnings("unchecked")
+        T[] resultRef = (T[]) new Object[1];
+        Throwable[] throwableRef = new Throwable[1];
+
+        handler.post(() -> {
+            try {
+                resultRef[0] = callable.call();
+            } catch (Throwable throwable) {
+                throwableRef[0] = throwable;
+            } finally {
+                sem.release();
+            }
+        });
+
+        try {
+            sem.acquire();
+        } catch (InterruptedException e) {
+            // Behave as if this method call was synchronous
+            Thread.currentThread().interrupt();
+        }
+
+        if (throwableRef[0] != null) {
+            throw throwableRef[0];
+        }
+
+        return resultRef[0];
+    }
+}

server/src/main/java/com/genymobile/scrcpy/video/NewDisplayCapture.java

@@ -25,6 +25,7 @@ public class NewDisplayCapture extends SurfaceCapture {
 
     // Internal fields copied from android.hardware.display.DisplayManager
     private static final int VIRTUAL_DISPLAY_FLAG_PUBLIC = android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_PUBLIC;
+    private static final int VIRTUAL_DISPLAY_FLAG_PRESENTATION = android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_PRESENTATION;
     private static final int VIRTUAL_DISPLAY_FLAG_OWN_CONTENT_ONLY = android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_OWN_CONTENT_ONLY;
     private static final int VIRTUAL_DISPLAY_FLAG_SUPPORTS_TOUCH = 1 << 6;
     private static final int VIRTUAL_DISPLAY_FLAG_ROTATES_WITH_CONTENT = 1 << 7;
@@ -169,6 +170,7 @@ public class NewDisplayCapture extends SurfaceCapture {
         int virtualDisplayId;
         try {
             int flags = VIRTUAL_DISPLAY_FLAG_PUBLIC
+                    | VIRTUAL_DISPLAY_FLAG_PRESENTATION
                     | VIRTUAL_DISPLAY_FLAG_OWN_CONTENT_ONLY
                     | VIRTUAL_DISPLAY_FLAG_SUPPORTS_TOUCH
                     | VIRTUAL_DISPLAY_FLAG_ROTATES_WITH_CONTENT;

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

@@ -3,13 +3,13 @@ package com.genymobile.scrcpy.wrappers;
 import com.genymobile.scrcpy.FakeContext;
 
 import android.content.ClipData;
+import android.content.Context;
 
 public final class ClipboardManager {
     private final android.content.ClipboardManager manager;
 
     static ClipboardManager create() {
-        android.content.ClipboardManager manager = (android.content.ClipboardManager) FakeContext.get()
-                .getSystemService(FakeContext.CLIPBOARD_SERVICE);
+        android.content.ClipboardManager manager = (android.content.ClipboardManager) FakeContext.get().getSystemService(Context.CLIPBOARD_SERVICE);
         if (manager == null) {
             // Some devices have no clipboard manager
             // <https://github.com/Genymobile/scrcpy/issues/1440>

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

@@ -139,7 +139,13 @@ public final class DisplayManager {
             int layerStack = cls.getDeclaredField("layerStack").getInt(displayInfo);
             int flags = cls.getDeclaredField("flags").getInt(displayInfo);
             int dpi = cls.getDeclaredField("logicalDensityDpi").getInt(displayInfo);
-            String uniqueId = (String) cls.getDeclaredField("uniqueId").get(displayInfo);
+            String uniqueId;
+            try {
+                uniqueId = (String) cls.getDeclaredField("uniqueId").get(displayInfo);
+            } catch (NoSuchFieldException e) {
+                // This field might not exist: <https://github.com/Genymobile/scrcpy/issues/6461>
+                uniqueId = null;
+            }
             return new DisplayInfo(displayId, new Size(width, height), rotation, layerStack, flags, dpi, uniqueId);
         } catch (ReflectiveOperationException e) {
             throw new AssertionError(e);

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

@@ -1,10 +1,11 @@
 package com.genymobile.scrcpy.wrappers;
 
-import android.content.res.Configuration;
-import android.graphics.Rect;
-import android.view.IDisplayWindowListener;
+import com.genymobile.scrcpy.util.Ln;
 
-import java.util.List;
+import android.content.res.Configuration;
+import android.os.Parcel;
+import android.os.RemoteException;
+import android.view.IDisplayWindowListener;
 
 public class DisplayWindowListener extends IDisplayWindowListener.Stub {
     @Override
@@ -23,17 +24,14 @@ public class DisplayWindowListener extends IDisplayWindowListener.Stub {
     }
 
     @Override
-    public void onFixedRotationStarted(int displayId, int newRotation) {
-        // empty default implementation
-    }
-
-    @Override
-    public void onFixedRotationFinished(int displayId) {
-        // empty default implementation
-    }
-
-    @Override
-    public void onKeepClearAreasChanged(int displayId, List<Rect> restricted, List<Rect> unrestricted) {
-        // empty default implementation
+    public boolean onTransact(int code, Parcel data, Parcel reply, int flags) throws RemoteException {
+        try {
+            return super.onTransact(code, data, reply, flags);
+        } catch (AbstractMethodError e) {
+            Ln.v("Ignoring AbstractMethodError: " + e.getMessage());
+            // Ignore unknown methods, write default response to reply parcel
+            reply.writeNoException();
+            return true;
+        }
     }
 }

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

@@ -125,7 +125,7 @@ public class ControlMessageReaderTest {
         dos.writeShort(1080);
         dos.writeShort(1920);
         dos.writeShort(0); // 0.0f encoded as i16
-        dos.writeShort(0x8000); // -1.0f encoded as i16
+        dos.writeShort(0x8000); // -16.0f encoded as i16 (the range is [-16, 16])
         dos.writeInt(1);
         byte[] packet = bos.toByteArray();
 
@@ -139,7 +139,7 @@ public class ControlMessageReaderTest {
         Assert.assertEquals(1080, event.getPosition().getScreenSize().getWidth());
         Assert.assertEquals(1920, event.getPosition().getScreenSize().getHeight());
         Assert.assertEquals(0f, event.getHScroll(), 0f);
-        Assert.assertEquals(-1f, event.getVScroll(), 0f);
+        Assert.assertEquals(-16f, event.getVScroll(), 0f);
         Assert.assertEquals(1, event.getButtons());
 
         Assert.assertEquals(-1, bis.read()); // EOS