[vala/wip/sdl2: 4/10] sdl2: Fix static methods

[Rico Tzschichholz <ricotz src gnome org>]

commit 65225ba28a714bdd45c4ae288f4df8e5ef1d4ee7
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Mon Jan 25 16:10:10 2021 +0100

    sdl2: Fix static methods

 vapi/sdl2.vapi | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)
---
diff --git a/vapi/sdl2.vapi b/vapi/sdl2.vapi
index ddbaa8383..d15cfc612 100644
--- a/vapi/sdl2.vapi
+++ b/vapi/sdl2.vapi
@@ -225,7 +225,7 @@ namespace SDL {
        }
 
        [CCode (cname = "SDL_version", cheader_filename = "SDL2/SDL_version.h")]
-       public class Version {
+       public struct Version {
                public uint8 major;
                public uint8 minor;
                public uint8 patch;
@@ -1968,13 +1968,13 @@ namespace SDL {
                public static int wait_inms (out SDL.Event ev, int timeout);
 
                [CCode (cname = "SDL_PushEvent")]
-               public static int push (SDL.Event ev);
+               public static int push (SDL.Event? ev);
 
                [CCode (cname = "SDL_SetEventFilter")]
                public static void set_eventfilter (SDL.EventFilter filter);
 
                [CCode (cname = "SDL_GetEventFilter")]
-               public static bool get_eventfilter (out SDL.EventFilter filter);
+               public static bool get_eventfilter (out unowned SDL.EventFilter filter);
 
                [CCode (cname = "SDL_AddEventWatch")]
                public static void add_eventwatch (SDL.EventFilter filter);
@@ -3990,7 +3990,7 @@ namespace SDL {
                                        return _to_string () ?? "INVALID";
                                }
                                [CCode (cname = "SDL_GameControllerGetAxisFromString")]
-                               public static GameController.Axis? from_string (string axis_string);
+                               public static GameController.Axis from_string (string axis_string);
                        }
 
                        [Version (since = "2.0.0")]
@@ -4005,7 +4005,7 @@ namespace SDL {
                                        return _to_string () ?? "INVALID";
                                }
                                [CCode (cname = "SDL_GameControllerGetButtonFromString")]
-                               public static GameController.Button? from_string (string button_string);
+                               public static GameController.Button from_string (string button_string);
                        }
                        [CCode (cprefix = "SDL_CONTROLLER_BINDTYPE_", cheader_filename = 
"SDL2/SDL_gamecontroller.h")]
                        public enum BindType {
@@ -4413,7 +4413,7 @@ namespace SDL {
                public static void pause (int pause_on);
 
                [CCode (cname = "SDL_LoadWAV_RW")]
-               public static unowned AudioSpec? load_rw (RWops src, int freesrc, ref AudioSpec spec, out 
uint8[] audio_buf, out uint32 audio_len);
+               public static unowned AudioSpec? load_rw (RWops src, int freesrc, ref AudioSpec spec, [CCode 
(array_length = false)] out uint8[] audio_buf, out uint32 audio_len);
 
                public static unowned AudioSpec? load (string file, ref AudioSpec spec, out uint8[] 
audio_buf, out uint32 audio_len) {
                        return load_rw (new SDL.RWops.from_file (file, "rb"), 1,
@@ -4424,10 +4424,10 @@ namespace SDL {
                public static void free (ref uint8 audio_buf);
 
                [CCode (cname = "SDL_MixAudio")]
-               public static void mix (out uint8[] dst, uint8[] src, uint32 len, int volume);
+               public static void mix ([CCode (array_length = false)] ref uint8[] dst, [CCode (array_length 
= false)] uint8[] src, uint32 len, int volume);
 
                [CCode (cname = "SDL_MixAudioFormat")]
-               public static void mix_device (out uint8[] dst, uint8[] src, AudioFormat format, uint32 len, 
int volume);
+               public static void mix_device ([CCode (array_length = false)] ref uint8[] dst, [CCode 
(array_length = false)] uint8[] src, AudioFormat format, uint32 len, int volume);
 
                [Version (deprecated = true, replacement = "AudioDevice.do_lock")]
                [CCode (cname = "SDL_LockAudio")]