Abstract SDL_SysWM into compat functions

app/streaming/video/ffmpeg-renderers/pacer/pacer.cpp

@@ -2,18 +2,14 @@
 #include "streaming/streamutils.h"
 
 #ifdef Q_OS_WIN32
-#define WIN32_LEAN_AND_MEAN
-#include <Windows.h>
-#include <VersionHelpers.h>
 #include "dxvsyncsource.h"
+#include <VersionHelpers.h>
 #endif
 
 #ifdef HAS_WAYLAND
 #include "waylandvsyncsource.h"
 #endif
 
-#include <SDL_syswm.h>
-
 // Limit the number of queued frames to prevent excessive memory consumption
 // if the V-Sync source or renderer is blocked for a while. It's important
 // that the sum of all queued frames between both pacing and rendering queues
@@ -267,31 +263,22 @@ bool Pacer::initialize(SDL_Window* window, int maxVideoFps, bool enablePacing)
                     "Frame pacing: target %d Hz with %d FPS stream",
                     m_DisplayFps, m_MaxVideoFps);
 
-        SDL_SysWMinfo info;
-        SDL_VERSION(&info.version);
-        if (!SDL_GetWindowWMInfo(window, &info)) {
-            SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-                         "SDL_GetWindowWMInfo() failed: %s",
-                         SDL_GetError());
-            return false;
-        }
-
-        switch (info.subsystem) {
-    #ifdef Q_OS_WIN32
-        case SDL_SYSWM_WINDOWS:
+        switch (SDLC_GetVideoDriver()) {
+        case SDLC_VIDEO_WIN32:
+#ifdef Q_OS_WIN32
             // Don't use D3DKMTWaitForVerticalBlankEvent() on Windows 7, because
             // it blocks during other concurrent DX operations (like actually rendering).
             if (IsWindows8OrGreater()) {
                 m_VsyncSource = new DxVsyncSource(this);
             }
+#endif
             break;
-    #endif
 
-    #if defined(SDL_VIDEO_DRIVER_WAYLAND) && defined(HAS_WAYLAND)
-        case SDL_SYSWM_WAYLAND:
+        case SDLC_VIDEO_WAYLAND:
+#if defined(SDL_VIDEO_DRIVER_WAYLAND) && defined(HAS_WAYLAND)
             m_VsyncSource = new WaylandVsyncSource(this);
+#endif
             break;
-    #endif
 
         default:
             // Platforms without a VsyncSource will just render frames