Drawing animated GIF

[lpcware]

Content originally posted in LPCWare by an.skornyakov on Thu Aug 09 04:25:41 MST 2012
I'm trying to show animated gif file on my device. Image buffer placed in SDRAM. MEMDEV is used for displaying GIF. Animation displayed, but with huge distortions. There are sample in images attached. Originally, that was Bart Simpsons.

code:
   hMem = GUI_MEMDEV_Create(XPos, YPos, GifInfo.xSize, GifInfo.ySize);
   GUI_MEMDEV_Select(hMem);
                      
   for (j = 0; j < GifInfo.NumImages; j++){
      GUI_MEMDEV_Clear(hMem);
      GUI_ClearRect(XPos, YPos, GifInfo.xSize, GifInfo.ySize);
      GUI_GIF_DrawSub(_aImgBuffer, fStat.st_size, XPos, YPos, j);
      GUI_MEMDEV_CopyToLCD(hMem);
      GUI_GIF_GetImageInfo(_aImgBuffer, fStat.st_size, &ImageInfo, j);      
      GUI_Delay(ImageInfo.Delay ? ImageInfo.Delay * 5 : 100);   
   }
                                           
   GUI_MEMDEV_Delete(hMem);