1 files changed, 117 insertions, 0 deletions
diff --git a/source/3rd-party/SDL2/src/video/directfb/SDL_DirectFB_dyn.c b/source/3rd-party/SDL2/src/video/directfb/SDL_DirectFB_dyn.c
new file mode 100644
index 0000000..12cf21a
--- /dev/null
+++ b/source/3rd-party/SDL2/src/video/directfb/SDL_DirectFB_dyn.c
@@ -0,0 +1,117 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "../../SDL_internal.h"
+
+#if SDL_VIDEO_DRIVER_DIRECTFB
+
+#include "SDL_DirectFB_video.h"
+#include "SDL_DirectFB_dyn.h"
+
+#ifdef SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC
+#include "SDL_name.h"
+#include "SDL_loadso.h"
+
+#define DFB_SYM(ret, name, args, al, func) ret (*name) args;
+static struct _SDL_DirectFB_Symbols
+{
+    DFB_SYMS
+    const unsigned int *directfb_major_version;
+    const unsigned int *directfb_minor_version;
+    const unsigned int *directfb_micro_version;
+} SDL_DirectFB_Symbols;
+#undef DFB_SYM
+
+#define DFB_SYM(ret, name, args, al, func) ret name args { func SDL_DirectFB_Symbols.name al  ; }
+DFB_SYMS
+#undef DFB_SYM
+
+static void *handle = NULL;
+
+int
+SDL_DirectFB_LoadLibrary(void)
+{
+    int retval = 0;
+
+    if (handle == NULL) {
+        handle = SDL_LoadObject(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC);
+        if (handle != NULL) {
+            retval = 1;
+#define DFB_SYM(ret, name, args, al, func) if (!(SDL_DirectFB_Symbols.name = SDL_LoadFunction(handle, # name))) retval = 0;
+            DFB_SYMS
+#undef DFB_SYM
+            if (!
+                    (SDL_DirectFB_Symbols.directfb_major_version =
+                     SDL_LoadFunction(handle, "directfb_major_version")))
+                retval = 0;
+            if (!
+                (SDL_DirectFB_Symbols.directfb_minor_version =
+                 SDL_LoadFunction(handle, "directfb_minor_version")))
+                retval = 0;
+            if (!
+                (SDL_DirectFB_Symbols.directfb_micro_version =
+                 SDL_LoadFunction(handle, "directfb_micro_version")))
+                retval = 0;
+        }
+    }
+    if (retval) {
+        const char *stemp = DirectFBCheckVersion(DIRECTFB_MAJOR_VERSION,
+                                                 DIRECTFB_MINOR_VERSION,
+                                                 DIRECTFB_MICRO_VERSION);
+        /* Version Check */
+        if (stemp != NULL) {
+            fprintf(stderr,
+                    "DirectFB Lib: Version mismatch. Compiled: %d.%d.%d Library %d.%d.%d\n",
+                    DIRECTFB_MAJOR_VERSION, DIRECTFB_MINOR_VERSION,
+                    DIRECTFB_MICRO_VERSION,
+                    *SDL_DirectFB_Symbols.directfb_major_version,
+                    *SDL_DirectFB_Symbols.directfb_minor_version,
+                    *SDL_DirectFB_Symbols.directfb_micro_version);
+            retval = 0;
+        }
+    }
+    if (!retval)
+        SDL_DirectFB_UnLoadLibrary();
+    return retval;
+}
+
+void
+SDL_DirectFB_UnLoadLibrary(void)
+{
+    if (handle != NULL) {
+        SDL_UnloadObject(handle);
+        handle = NULL;
+    }
+}
+
+#else
+int
+SDL_DirectFB_LoadLibrary(void)
+{
+    return 1;
+}
+
+void
+SDL_DirectFB_UnLoadLibrary(void)
+{
+}
+#endif
+
+#endif /* SDL_VIDEO_DRIVER_DIRECTFB */