FinalBurn Neo rotation fix for minarch

diff --git a/src/burner/libretro/libretro.cpp b/src/burner/libretro/libretro.cpp
index 3726ec60f..30a6c8cd6 100644
--- a/src/burner/libretro/libretro.cpp
+++ b/src/burner/libretro/libretro.cpp
@@ -78,7 +78,7 @@ INT32 nAudSegLen = 0;

 static UINT8* pVidImage              = NULL;
 static bool bVidImageNeedRealloc     = false;
-static bool bRotationDone            = false;
+static bool bRotationDone            = true;
 static int16_t *pAudBuffer           = NULL;
 static char text_missing_files[2048] = "";

@@ -1550,8 +1550,46 @@ void retro_run()
        // current frame will be corrupted, let's dupe instead
        pBurnDraw = NULL;
    }
+    // get flags
+    UINT32 flags = BurnDrvGetFlags();
+
+    if (pBurnDraw && flags & BDF_ORIENTATION_VERTICAL) {
+        int y=0;
+
+        UINT8 *pTMP = (UINT8*)malloc(nGameWidth * nGameHeight * nBurnBpp);
+        memcpy(pTMP, pBurnDraw, nGameWidth * nGameHeight * nBurnBpp);
+
+        int newGameWidth = nGameHeight;
+        int newGameHeight = nGameWidth;
+        int newBurnPitch = newGameWidth * nBurnBpp;
+
+       if ((BurnDrvGetFlags() & BDF_ORIENTATION_VERTICAL))
+        while (y < newGameHeight) {
+            int x = 0;
+
+           if ( flags & BDF_ORIENTATION_FLIPPED ) {
+                while (x < newGameWidth)
+                {
+                    for (int i = 0; i < nBurnBpp; i++)
+                        pBurnDraw[x * nBurnBpp + y * newBurnPitch + i] = pTMP[(nGameHeight - x - 1) * nBurnPitch + y * nBurnBpp + i];
+                    x++;
+                }
+            } else {
+                while (x < newGameWidth)
+                {
+                    for (int i = 0; i < nBurnBpp; i++)
+                        pBurnDraw[x * nBurnBpp + y * newBurnPitch + i] = pTMP[x * nBurnPitch + (nGameWidth - y - 1) * nBurnBpp + i];
+                    x++;
+                }
+            }
+            y++;
+        }
+        free(pTMP);
+       video_cb(pBurnDraw, newGameWidth, newGameHeight, newBurnPitch);
+    } else {
+       video_cb(pBurnDraw, nGameWidth, nGameHeight, nBurnPitch);
+    }

-   video_cb(pBurnDraw, nGameWidth, nGameHeight, nBurnPitch);

    bool updated = false;
    if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
@@ -1567,7 +1605,7 @@ void retro_run()
        // change orientation/geometry if vertical mode was toggled on/off
        if (old_nVerticalMode != nVerticalMode)
        {
-           SetRotation();
+           //SetRotation();
            struct retro_system_av_info av_info;
            retro_get_system_av_info(&av_info);
            environ_cb(RETRO_ENVIRONMENT_SET_GEOMETRY, &av_info);
@@ -2184,7 +2222,7 @@ static bool retro_load_game_common()

        // Initializing display, autorotate if needed
        BurnDrvGetFullSize(&nGameWidth, &nGameHeight);
-       SetRotation();
+       //SetRotation();
        SetColorDepth();

        VideoBufferInit();