Require SDL >= 2.0.5

Icon loading uses SDL_CreateRGBSurfaceWithFormatFrom(), available since
SDL 2.0.5 (in 2016).

Refs #2862 <https://github.com/Genymobile/scrcpy/issues/2862>

app/meson.build

@@ -87,7 +87,7 @@ if not get_option('crossbuild_windows')
         dependency('libavformat'),
         dependency('libavcodec'),
         dependency('libavutil'),
-        dependency('sdl2'),
+        dependency('sdl2', version: '>= 2.0.5'),
     ]
 
     if v4l2_support

app/src/compat.h

@@ -35,15 +35,6 @@
 # define SCRCPY_LAVF_HAS_AVFORMATCONTEXT_URL
 #endif
 
-#if SDL_VERSION_ATLEAST(2, 0, 5)
-// <https://wiki.libsdl.org/SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH>
-# define SCRCPY_SDL_HAS_HINT_MOUSE_FOCUS_CLICKTHROUGH
-// <https://wiki.libsdl.org/SDL_GetDisplayUsableBounds>
-# define SCRCPY_SDL_HAS_GET_DISPLAY_USABLE_BOUNDS
-// <https://wiki.libsdl.org/SDL_WindowFlags>
-# define SCRCPY_SDL_HAS_WINDOW_ALWAYS_ON_TOP
-#endif
-
 #if SDL_VERSION_ATLEAST(2, 0, 6)
 // <https://github.com/libsdl-org/SDL/commit/d7a318de563125e5bb465b1000d6bc9576fbc6fc>
 # define SCRCPY_SDL_HAS_HINT_TOUCH_MOUSE_EVENTS

app/src/scrcpy.c

@@ -94,12 +94,10 @@ sdl_set_hints(const char *render_driver) {
         LOGW("Could not enable linear filtering");
     }
 
-#ifdef SCRCPY_SDL_HAS_HINT_MOUSE_FOCUS_CLICKTHROUGH
     // 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");
     }
-#endif
 
 #ifdef SCRCPY_SDL_HAS_HINT_TOUCH_MOUSE_EVENTS
     // Disable synthetic mouse events from touch events

app/src/screen.c

@@ -64,12 +64,7 @@ set_window_size(struct screen *screen, struct sc_size new_size) {
 static bool
 get_preferred_display_bounds(struct sc_size *bounds) {
     SDL_Rect rect;
-#ifdef SCRCPY_SDL_HAS_GET_DISPLAY_USABLE_BOUNDS
-# define GET_DISPLAY_BOUNDS(i, r) SDL_GetDisplayUsableBounds((i), (r))
-#else
-# define GET_DISPLAY_BOUNDS(i, r) SDL_GetDisplayBounds((i), (r))
-#endif
-    if (GET_DISPLAY_BOUNDS(0, &rect)) {
+    if (SDL_GetDisplayUsableBounds(0, &rect)) {
         LOGW("Could not get display usable bounds: %s", SDL_GetError());
         return false;
     }
@@ -394,12 +389,7 @@ screen_init(struct screen *screen, const struct screen_params *params) {
                           | SDL_WINDOW_RESIZABLE
                           | SDL_WINDOW_ALLOW_HIGHDPI;
     if (params->always_on_top) {
-#ifdef SCRCPY_SDL_HAS_WINDOW_ALWAYS_ON_TOP
         window_flags |= SDL_WINDOW_ALWAYS_ON_TOP;
-#else
-        LOGW("The 'always on top' flag is not available "
-             "(compile with SDL >= 2.0.5 to enable it)");
-#endif
     }
     if (params->window_borderless) {
         window_flags |= SDL_WINDOW_BORDERLESS;