X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Finit.c;h=60e0bcd3c22fd6135785dca3291bcc050e787e2f;hb=1150bdce04915bf329bd816307fb2507eba80e15;hp=7f5a4aeabf5b6be571cac08af04afb1166565ee4;hpb=f8f7840ddc57a2c31a3d6ab664b0e4e7e7ad69ce;p=rocksndiamonds.git

diff --git a/src/init.c b/src/init.c
index 7f5a4aea..60e0bcd3 100644
--- a/src/init.c
+++ b/src/init.c
@@ -14,6 +14,7 @@
 #include <signal.h>
 
 #include "init.h"
+#include "events.h"
 #include "misc.h"
 #include "sound.h"
 #include "screens.h"
@@ -34,39 +35,37 @@ struct PictureFileInfo
   boolean picture_with_mask;
 };
 
-struct IconFileInfo
-{
-  char *picture_filename;
-  char *picturemask_filename;
-};
-
-static int sound_process_id = 0;
-
-static void InitLevelAndPlayerInfo(void);
+static void InitPlayerInfo(void);
+static void InitLevelInfo(void);
 static void InitNetworkServer(void);
-static void InitDisplay(void);
 static void InitSound(void);
 static void InitSoundServer(void);
-static void InitWindow(int, char **);
 static void InitGfx(void);
+static void InitGfxBackground(void);
 static void LoadGfx(int, struct PictureFileInfo *);
 static void InitGadgets(void);
 static void InitElementProperties(void);
 
 void OpenAll(int argc, char *argv[])
 {
-#ifdef MSDOS
+#if !defined(PLATFORM_UNIX)
   initErrorFile();
 #endif
 
   if (options.serveronly)
   {
+#if defined(PLATFORM_UNIX)
     NetworkServer(options.server_port, options.serveronly);
+#else
+    Error(ERR_WARN, "networking not supported in Windows version");
+#endif
 
     /* never reached */
     exit(0);
   }
 
+  InitPlayerInfo();
+
   InitCounter();
   InitSound();
   InitSoundServer();
@@ -76,24 +75,22 @@ void OpenAll(int argc, char *argv[])
   signal(SIGINT, CloseAllAndExit);
   signal(SIGTERM, CloseAllAndExit);
 
-  InitDisplay();
-  InitWindow(argc, argv);
-
-  XMapWindow(display, window);
-  XFlush(display);
+  InitBufferedDisplay(&backbuffer, &window);
+  InitEventFilter(FilterMouseMotionEvents);
 
   InitGfx();
   InitElementProperties();	/* initializes IS_CHAR() for el2gfx() */
 
-  InitLevelAndPlayerInfo();
+  InitLevelInfo();
   InitGadgets();		/* needs to know number of level series */
 
+  InitGfxBackground();
   DrawMainMenu();
 
   InitNetworkServer();
 }
 
-void InitLevelAndPlayerInfo()
+void InitPlayerInfo()
 {
   int i;
 
@@ -108,22 +105,26 @@ void InitLevelAndPlayerInfo()
 
   local_player->connected = TRUE;
 
-  LoadLevelInfo();				/* global level info */
   LoadSetup();					/* global setup info */
+}
+
+void InitLevelInfo()
+{
+  LoadLevelInfo();				/* global level info */
   LoadLevelSetup_LastSeries();			/* last played series info */
   LoadLevelSetup_SeriesInfo();			/* last played level info */
 }
 
 void InitNetworkServer()
 {
-#ifndef MSDOS
+#if defined(PLATFORM_UNIX)
   int nr_wanted;
 #endif
 
   if (!options.network)
     return;
 
-#ifndef MSDOS
+#if defined(PLATFORM_UNIX)
   nr_wanted = Request("Choose player", REQ_PLAYER | REQ_STAY_CLOSED);
 
   if (!ConnectToServer(options.server_host, options.server_port))
@@ -141,54 +142,44 @@ void InitSound()
 {
   int i;
 
-  if (sound_status == SOUND_OFF)
+  /* REMOVE THIS! (gone to system.c:InitAudio) */
+  if (!sysinfo.audio_available)
     return;
 
-#ifndef MSDOS
-  if (access(sound_device_name, W_OK) != 0)
+#if defined(TARGET_SDL)
+  if (InitAudio())
   {
-    Error(ERR_WARN, "cannot access sound device - no sounds");
-    sound_status = SOUND_OFF;
-    return;
+    sysinfo.audio_available = TRUE;
+    sysinfo.audio_loops_available = TRUE;
   }
-
-  if ((sound_device = open(sound_device_name,O_WRONLY))<0)
+  else
   {
-    Error(ERR_WARN, "cannot open sound device - no sounds");
-    sound_status = SOUND_OFF;
-    return;
+    sysinfo.audio_available = FALSE;
   }
+#else /* !TARGET_SDL */
 
-  close(sound_device);
-  sound_status = SOUND_AVAILABLE;
+#if defined(PLATFORM_UNIX)
+  if (!(sysinfo.audio_available = CheckAudio(sound_device_name)))
+    return;
 
 #ifdef VOXWARE
-  sound_loops_allowed = TRUE;
-
-  /*
-  setup.sound_loops_on = TRUE;
-  */
-
+  sysinfo.audio_loops_available = TRUE;
 #endif
-#else /* MSDOS */
-  sound_loops_allowed = TRUE;
 
-  /*
-  setup.sound_loops_on = TRUE;
-  */
+#else /* !PLATFORM_UNIX */
+  sysinfo.audio_loops_available = TRUE;
 
-#endif /* MSDOS */
+#endif /* !PLATFORM_UNIX */
+#endif /* !TARGET_SDL */
 
   for(i=0; i<NUM_SOUNDS; i++)
   {
-#ifdef MSDOS
-    sprintf(sound_name[i], "%d", i + 1);
-#endif
-
     Sound[i].name = sound_name[i];
+
     if (!LoadSound(&Sound[i]))
     {
-      sound_status = SOUND_OFF;
+      sysinfo.audio_available = FALSE;
+      sysinfo.audio_loops_available = FALSE;
       return;
     }
   }
@@ -196,44 +187,50 @@ void InitSound()
 
 void InitSoundServer()
 {
-  if (sound_status == SOUND_OFF)
+  if (!sysinfo.audio_available)
     return;
 
-#ifndef MSDOS
+#if !defined(TARGET_SDL)
+#if defined(PLATFORM_UNIX)
 
-  if (pipe(sound_pipe)<0)
+  if (pipe(sysinfo.audio_process_pipe) < 0)
   {
     Error(ERR_WARN, "cannot create pipe - no sounds");
-    sound_status = SOUND_OFF;
+    sysinfo.audio_available = FALSE;
     return;
   }
 
-  if ((sound_process_id = fork()) < 0)
+  if ((sysinfo.audio_process_id = fork()) < 0)
   {       
     Error(ERR_WARN, "cannot create sound server process - no sounds");
-    sound_status = SOUND_OFF;
+    sysinfo.audio_available = FALSE;
     return;
   }
 
-  if (!sound_process_id)	/* we are child */
+  if (!sysinfo.audio_process_id)	/* we are child */
   {
     SoundServer();
 
     /* never reached */
     exit(0);
   }
-  else				/* we are parent */
-    close(sound_pipe[0]);	/* no reading from pipe needed */
+  else					/* we are parent */
+    close(sysinfo.audio_process_pipe[0]); /* no reading from pipe needed */
 
-#else /* MSDOS */
+#else /* !PLATFORM_UNIX */
 
   SoundServer();
 
-#endif /* MSDOS */
+#endif /* !PLATFORM_UNIX */
+#endif /* !TARGET_SDL */
 }
 
 void InitJoysticks()
 {
+#if defined(TARGET_SDL)
+  static boolean sdl_joystick_subsystem_initialized = FALSE;
+#endif
+
   int i;
 
   if (global_joystick_status == JOYSTICK_OFF)
@@ -241,7 +238,49 @@ void InitJoysticks()
 
   joystick_status = JOYSTICK_OFF;
 
-#ifndef MSDOS
+#if defined(TARGET_SDL)
+
+  if (!sdl_joystick_subsystem_initialized)
+  {
+    sdl_joystick_subsystem_initialized = TRUE;
+
+    if (SDL_Init(SDL_INIT_JOYSTICK) < 0)
+    {
+      Error(ERR_EXIT, "SDL_Init() failed: %s", SDL_GetError());
+      return;
+    }
+  }
+
+  for (i=0; i<MAX_PLAYERS; i++)
+  {
+    char *device_name = setup.input[i].joy.device_name;
+    int joystick_nr = getJoystickNrFromDeviceName(device_name);
+
+    if (joystick_nr >= SDL_NumJoysticks())
+      joystick_nr = -1;
+
+    /* misuse joystick file descriptor variable to store joystick number */
+    stored_player[i].joystick_fd = joystick_nr;
+
+    /* this allows subsequent calls to 'InitJoysticks' for re-initialization */
+    if (Check_SDL_JoystickOpened(joystick_nr))
+      Close_SDL_Joystick(joystick_nr);
+
+    if (!setup.input[i].use_joystick)
+      continue;
+
+    if (!Open_SDL_Joystick(joystick_nr))
+    {
+      Error(ERR_WARN, "cannot open joystick %d", joystick_nr);
+      continue;
+    }
+
+    joystick_status = JOYSTICK_AVAILABLE;
+  }
+
+#else /* !TARGET_SDL */
+
+#if defined(PLATFORM_UNIX)
   for (i=0; i<MAX_PLAYERS; i++)
   {
     char *device_name = setup.input[i].joy.device_name;
@@ -271,7 +310,7 @@ void InitJoysticks()
     joystick_status = JOYSTICK_AVAILABLE;
   }
 
-#else /* MSDOS */
+#else /* !PLATFORM_UNIX */
 
   /* try to access two joysticks; if that fails, try to access just one */
   if (install_joystick(JOY_TYPE_2PADS) == 0 ||
@@ -294,194 +333,23 @@ void InitJoysticks()
     stored_player[i].joystick_fd = joystick_nr;
   }
 #endif
-}
-
-void InitDisplay()
-{
-#ifndef MSDOS
-  XVisualInfo vinfo_template, *vinfo;
-  int num_visuals;
-#endif
-  unsigned int depth;
-
-  /* connect to X server */
-  if (!(display = XOpenDisplay(options.display_name)))
-    Error(ERR_EXIT, "cannot connect to X server %s",
-	  XDisplayName(options.display_name));
-
-  screen = DefaultScreen(display);
-  visual = DefaultVisual(display, screen);
-  depth  = DefaultDepth(display, screen);
-  cmap   = DefaultColormap(display, screen);
-
-#ifndef MSDOS
-  /* look for good enough visual */
-  vinfo_template.screen = screen;
-  vinfo_template.class = (depth == 8 ? PseudoColor : TrueColor);
-  vinfo_template.depth = depth;
-  if ((vinfo = XGetVisualInfo(display, VisualScreenMask | VisualClassMask |
-			      VisualDepthMask, &vinfo_template, &num_visuals)))
-  {
-    visual = vinfo->visual;
-    XFree((void *)vinfo);
-  }
-
-  /* got appropriate visual? */
-  if (depth < 8)
-  {
-    printf("Sorry, displays with less than 8 bits per pixel not supported.\n");
-    exit(-1);
-  }
-  else if ((depth ==8 && visual->class != PseudoColor) ||
-	   (depth > 8 && visual->class != TrueColor &&
-	    visual->class != DirectColor))
-  {
-    printf("Sorry, cannot get appropriate visual.\n");
-    exit(-1);
-  }
-#endif
-}
-
-void InitWindow(int argc, char *argv[])
-{
-  unsigned int border_width = 4;
-  XGCValues gc_values;
-  unsigned long gc_valuemask;
-#ifndef MSDOS
-  XTextProperty windowName, iconName;
-  Pixmap icon_pixmap, iconmask_pixmap;
-  unsigned int icon_width, icon_height;
-  int icon_hot_x, icon_hot_y;
-  char icon_filename[256];
-  XSizeHints size_hints;
-  XWMHints wm_hints;
-  XClassHint class_hints;
-  char *window_name = WINDOW_TITLE_STRING;
-  char *icon_name = WINDOW_TITLE_STRING;
-  long window_event_mask;
-  Atom proto_atom = None, delete_atom = None;
-#endif
-  int screen_width, screen_height;
-  int win_xpos = WIN_XPOS, win_ypos = WIN_YPOS;
-  unsigned long pen_fg = WhitePixel(display,screen);
-  unsigned long pen_bg = BlackPixel(display,screen);
-  const int width = WIN_XSIZE, height = WIN_YSIZE;
-
-#ifndef MSDOS
-  static struct IconFileInfo icon_pic =
-  {
-    "rocks_icon.xbm",
-    "rocks_iconmask.xbm"
-  };
-#endif
-
-  screen_width = XDisplayWidth(display, screen);
-  screen_height = XDisplayHeight(display, screen);
-
-  win_xpos = (screen_width - width) / 2;
-  win_ypos = (screen_height - height) / 2;
-
-  window = XCreateSimpleWindow(display, RootWindow(display, screen),
-			       win_xpos, win_ypos, width, height, border_width,
-			       pen_fg, pen_bg);
-
-#ifndef MSDOS
-  proto_atom = XInternAtom(display, "WM_PROTOCOLS", FALSE);
-  delete_atom = XInternAtom(display, "WM_DELETE_WINDOW", FALSE);
-  if ((proto_atom != None) && (delete_atom != None))
-    XChangeProperty(display, window, proto_atom, XA_ATOM, 32,
-		    PropModePrepend, (unsigned char *) &delete_atom, 1);
-
-  sprintf(icon_filename, "%s/%s/%s",
-	  options.ro_base_directory, GRAPHICS_DIRECTORY,
-	  icon_pic.picture_filename);
-  XReadBitmapFile(display,window,icon_filename,
-		  &icon_width,&icon_height,
-		  &icon_pixmap,&icon_hot_x,&icon_hot_y);
-  if (!icon_pixmap)
-    Error(ERR_EXIT, "cannot read icon bitmap file '%s'", icon_filename);
-
-  sprintf(icon_filename, "%s/%s/%s",
-	  options.ro_base_directory, GRAPHICS_DIRECTORY,
-	  icon_pic.picturemask_filename);
-  XReadBitmapFile(display,window,icon_filename,
-		  &icon_width,&icon_height,
-		  &iconmask_pixmap,&icon_hot_x,&icon_hot_y);
-  if (!iconmask_pixmap)
-    Error(ERR_EXIT, "cannot read icon bitmap file '%s'", icon_filename);
-
-  size_hints.width  = size_hints.min_width  = size_hints.max_width  = width;
-  size_hints.height = size_hints.min_height = size_hints.max_height = height;
-  size_hints.flags = PSize | PMinSize | PMaxSize;
-
-  if (win_xpos || win_ypos)
-  {
-    size_hints.x = win_xpos;
-    size_hints.y = win_ypos;
-    size_hints.flags |= PPosition;
-  }
-
-  if (!XStringListToTextProperty(&window_name, 1, &windowName))
-    Error(ERR_EXIT, "structure allocation for windowName failed");
-
-  if (!XStringListToTextProperty(&icon_name, 1, &iconName))
-    Error(ERR_EXIT, "structure allocation for iconName failed");
-
-  wm_hints.initial_state = NormalState;
-  wm_hints.input = True;
-  wm_hints.icon_pixmap = icon_pixmap;
-  wm_hints.icon_mask = iconmask_pixmap;
-  wm_hints.flags = StateHint | IconPixmapHint | IconMaskHint | InputHint;
-
-  class_hints.res_name = program_name;
-  class_hints.res_class = "Rocks'n'Diamonds";
-
-  XSetWMProperties(display, window, &windowName, &iconName, 
-		   argv, argc, &size_hints, &wm_hints, 
-		   &class_hints);
-
-  XFree(windowName.value);
-  XFree(iconName.value);
-
-  /* Select event types wanted */
-  window_event_mask =
-    ExposureMask | StructureNotifyMask | FocusChangeMask |
-    ButtonPressMask | ButtonReleaseMask | PointerMotionMask |
-    PointerMotionHintMask | KeyPressMask | KeyReleaseMask;
-
-  XSelectInput(display, window, window_event_mask);
-#endif
 
-  /* create GC for drawing with window depth */
-  gc_values.graphics_exposures = False;
-  gc_values.foreground = pen_bg;
-  gc_values.background = pen_bg;
-  gc_valuemask = GCGraphicsExposures | GCForeground | GCBackground;
-  gc = XCreateGC(display, window, gc_valuemask, &gc_values);
+#endif /* !TARGET_SDL */
 }
 
 void InitGfx()
 {
-  int i,j;
+  int i, j;
+
+#if defined(TARGET_SDL)
+  SDL_Surface *sdl_image_tmp;
+#else
   GC copy_clipmask_gc;
   XGCValues clip_gc_values;
   unsigned long clip_gc_valuemask;
+#endif
 
-#ifdef MSDOS
-  static struct PictureFileInfo pic[NUM_PICTURES] =
-  {
-    { "Screen",	TRUE },
-    { "Door",	TRUE },
-    { "Heroes",	TRUE },
-    { "Toons",	TRUE },
-    { "SP",	TRUE },
-    { "DC",	TRUE },
-    { "More",	TRUE },
-    { "Font",	FALSE },
-    { "Font2",	FALSE },
-    { "Font3",	FALSE }
-  }; 
-#else
+#if !defined(PLATFORM_MSDOS)
   static struct PictureFileInfo pic[NUM_PICTURES] =
   {
     { "RocksScreen",	TRUE },
@@ -495,21 +363,20 @@ void InitGfx()
     { "RocksFont2",	FALSE },
     { "RocksFont3",	FALSE }
   }; 
-#endif
-
-#ifdef DEBUG
-#if 0
-  static struct PictureFileInfo test_pic1 =
-  {
-    "RocksFont2",
-    FALSE
-  };
-  static struct PictureFileInfo test_pic2 =
+#else
+  static struct PictureFileInfo pic[NUM_PICTURES] =
   {
-    "mouse",
-    FALSE
-  };
-#endif
+    { "Screen",	TRUE },
+    { "Door",	TRUE },
+    { "Heroes",	TRUE },
+    { "Toons",	TRUE },
+    { "SP",	TRUE },
+    { "DC",	TRUE },
+    { "More",	TRUE },
+    { "Font",	FALSE },
+    { "Font2",	FALSE },
+    { "Font3",	FALSE }
+  }; 
 #endif
 
   static struct
@@ -564,59 +431,87 @@ void InitGfx()
     { -1, 0 }
   };
 
-#if DEBUG_TIMING
-  debug_print_timestamp(0, NULL);	/* initialize timestamp function */
-#endif
-
-#ifdef DEBUG
-#if 0
-  printf("Test: Loading RocksFont2.pcx ...\n");
-  LoadGfx(PIX_SMALLFONT,&test_pic1);
-  printf("Test: Done.\n");
-  printf("Test: Loading mouse.pcx ...\n");
-  LoadGfx(PIX_SMALLFONT,&test_pic2);
-  printf("Test: Done.\n");
-#endif
-#endif
+  /* create additional image buffers for double-buffering */
 
+  pix[PIX_DB_DOOR] = CreateBitmap(3 * DXSIZE, DYSIZE + VYSIZE, DEFAULT_DEPTH);
+  pix[PIX_DB_FIELD] = CreateBitmap(FXSIZE, FYSIZE, DEFAULT_DEPTH);
 
-
-  LoadGfx(PIX_SMALLFONT,&pic[PIX_SMALLFONT]);
-  DrawInitText(WINDOW_TITLE_STRING,20,FC_YELLOW);
-  DrawInitText(COPYRIGHT_STRING,50,FC_RED);
-#ifdef MSDOS
-  DrawInitText("MSDOS version done by Guido Schulz",210,FC_BLUE);
+  LoadGfx(PIX_SMALLFONT, &pic[PIX_SMALLFONT]);
+  DrawInitText(WINDOW_TITLE_STRING, 20, FC_YELLOW);
+  DrawInitText(WINDOW_SUBTITLE_STRING, 50, FC_RED);
+#if defined(PLATFORM_MSDOS)
+  DrawInitText(PROGRAM_DOS_PORT_STRING, 210, FC_BLUE);
   rest(200);
-#endif /* MSDOS */
+#endif
   DrawInitText("Loading graphics:",120,FC_GREEN);
 
   for(i=0; i<NUM_PICTURES; i++)
     if (i != PIX_SMALLFONT)
       LoadGfx(i,&pic[i]);
 
-#if DEBUG_TIMING
-  debug_print_timestamp(0, "SUMMARY LOADING ALL GRAPHICS:");
-#endif
+  /* create additional image buffers for masking of graphics */
 
-  pix[PIX_DB_BACK] = XCreatePixmap(display, window,
-				   WIN_XSIZE,WIN_YSIZE,
-				   XDefaultDepth(display,screen));
-  pix[PIX_DB_DOOR] = XCreatePixmap(display, window,
-				   3*DXSIZE,DYSIZE+VYSIZE,
-				   XDefaultDepth(display,screen));
-  pix[PIX_DB_FIELD] = XCreatePixmap(display, window,
-				    FXSIZE,FYSIZE,
-				    XDefaultDepth(display,screen));
+#if defined(TARGET_SDL)
 
+  /* initialize surface array to 'NULL' */
+  for(i=0; i<NUM_TILES; i++)
+    tile_masked[i] = NULL;
+
+  /* create only those masked surfaces we really need */
+  for(i=0; tile_needs_clipping[i].start>=0; i++)
+  {
+    for(j=0; j<tile_needs_clipping[i].count; j++)
+    {
+      int tile = tile_needs_clipping[i].start + j;
+      int graphic = tile;
+      int src_x, src_y;
+      int bitmap_nr;
+      Bitmap src_bitmap;
+
+      getGraphicSource(graphic, &bitmap_nr, &src_x, &src_y);
+      src_bitmap = pix_masked[bitmap_nr];
+
+      /* create surface for masked tile graphic */
+      if ((sdl_image_tmp = SDL_CreateRGBSurface(SDL_SWSURFACE, TILEX, TILEY,
+						WIN_SDL_DEPTH, 0, 0, 0, 0))
+	  == NULL)
+	Error(ERR_EXIT, "SDL_CreateRGBSurface() failed: %s", SDL_GetError());
+
+      /* create native transparent surface for current image */
+      SDL_SetColorKey(sdl_image_tmp, SDL_SRCCOLORKEY,
+		      SDL_MapRGB(sdl_image_tmp->format, 0x00, 0x00, 0x00));
+      if ((tile_masked[tile] = SDL_DisplayFormat(sdl_image_tmp)) == NULL)
+	Error(ERR_EXIT, "SDL_DisplayFormat() failed: %s", SDL_GetError());
+
+      SDL_FreeSurface(sdl_image_tmp);
+
+      BlitBitmap(src_bitmap, tile_masked[tile], src_x,src_y, TILEX,TILEY, 0,0);
+    }
+  }
+
+#else /* !TARGET_SDL */
+
+  /* create graphic context structures needed for clipping */
   clip_gc_values.graphics_exposures = False;
   clip_gc_valuemask = GCGraphicsExposures;
   copy_clipmask_gc =
-    XCreateGC(display,clipmask[PIX_BACK],clip_gc_valuemask,&clip_gc_values);
+    XCreateGC(display, clipmask[PIX_BACK], clip_gc_valuemask, &clip_gc_values);
 
   clip_gc_values.graphics_exposures = False;
   clip_gc_valuemask = GCGraphicsExposures;
   tile_clip_gc =
-    XCreateGC(display,window,clip_gc_valuemask,&clip_gc_values);
+    XCreateGC(display, window, clip_gc_valuemask, &clip_gc_values);
+
+  for(i=0; i<NUM_BITMAPS; i++)
+  {
+    if (clipmask[i])
+    {
+      clip_gc_values.graphics_exposures = False;
+      clip_gc_values.clip_mask = clipmask[i];
+      clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
+      clip_gc[i] = XCreateGC(display,window,clip_gc_valuemask,&clip_gc_values);
+    }
+  }
 
   /* initialize pixmap array to Pixmap 'None' */
   for(i=0; i<NUM_TILES; i++)
@@ -643,34 +538,24 @@ void InitGfx()
     }
   }
 
-  if (!pix[PIX_DB_BACK] || !pix[PIX_DB_DOOR])
-    Error(ERR_EXIT, "cannot create additional pixmaps");
+#endif /* !TARGET_SDL */
+}
 
-  for(i=0; i<NUM_PIXMAPS; i++)
-  {
-    if (clipmask[i])
-    {
-      clip_gc_values.graphics_exposures = False;
-      clip_gc_values.clip_mask = clipmask[i];
-      clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
-      clip_gc[i] = XCreateGC(display,window,clip_gc_valuemask,&clip_gc_values);
-    }
-  }
+void InitGfxBackground()
+{
+  int x, y;
 
   drawto = backbuffer = pix[PIX_DB_BACK];
   fieldbuffer = pix[PIX_DB_FIELD];
   SetDrawtoField(DRAW_BACKBUFFER);
 
-  XCopyArea(display,pix[PIX_BACK],backbuffer,gc,
-	    0,0, WIN_XSIZE,WIN_YSIZE, 0,0);
-  XFillRectangle(display,pix[PIX_DB_BACK],gc,
-		 REAL_SX,REAL_SY, FULL_SXSIZE,FULL_SYSIZE);
-  XFillRectangle(display,pix[PIX_DB_DOOR],gc,
-		 0,0, 3*DXSIZE,DYSIZE+VYSIZE);
+  BlitBitmap(pix[PIX_BACK], backbuffer, 0,0, WIN_XSIZE,WIN_YSIZE, 0,0);
+  ClearRectangle(backbuffer, REAL_SX,REAL_SY, FULL_SXSIZE,FULL_SYSIZE);
+  ClearRectangle(pix[PIX_DB_DOOR], 0,0, 3*DXSIZE,DYSIZE+VYSIZE);
 
-  for(i=0; i<MAX_BUF_XSIZE; i++)
-    for(j=0; j<MAX_BUF_YSIZE; j++)
-      redraw[i][j] = 0;
+  for(x=0; x<MAX_BUF_XSIZE; x++)
+    for(y=0; y<MAX_BUF_YSIZE; y++)
+      redraw[x][y] = 0;
   redraw_tiles = 0;
   redraw_mask = REDRAW_ALL;
 }
@@ -680,17 +565,12 @@ void LoadGfx(int pos, struct PictureFileInfo *pic)
   char basefilename[256];
   char filename[256];
 
-#ifdef USE_XPM_LIBRARY
-  int xpm_err, xbm_err;
-  unsigned int width,height;
-  int hot_x,hot_y;
-  Pixmap shapemask;
-  char *picture_ext = ".xpm";
-  char *picturemask_ext = "Mask.xbm";
+#if defined(TARGET_SDL)
+  SDL_Surface *sdl_image_tmp;
 #else
   int pcx_err;
-  char *picture_ext = ".pcx";
 #endif
+  char *picture_ext = ".pcx";
 
   /* Grafik laden */
   if (pic->picture_filename)
@@ -700,40 +580,29 @@ void LoadGfx(int pos, struct PictureFileInfo *pic)
     sprintf(filename, "%s/%s/%s",
 	    options.ro_base_directory, GRAPHICS_DIRECTORY, basefilename);
 
-#ifdef MSDOS
+#if defined(PLATFORM_MSDOS)
     rest(100);
-#endif /* MSDOS */
-
-#if DEBUG_TIMING
-    debug_print_timestamp(1, NULL);	/* initialize timestamp function */
 #endif
 
-#ifdef USE_XPM_LIBRARY
+#if defined(TARGET_SDL)
+    /* load image to temporary surface */
+    if ((sdl_image_tmp = IMG_Load(filename)) == NULL)
+      Error(ERR_EXIT, "IMG_Load() failed: %s", SDL_GetError());
 
-    xpm_att[pos].valuemask = XpmCloseness;
-    xpm_att[pos].closeness = 20000;
-    xpm_err = XpmReadFileToPixmap(display,window,filename,
-				  &pix[pos],&shapemask,&xpm_att[pos]);
-    switch(xpm_err)
-    {
-      case XpmOpenFailed:
-	Error(ERR_EXIT, "cannot open XPM file '%s'", filename);
-      case XpmFileInvalid:
-	Error(ERR_EXIT, "invalid XPM file '%s'", filename);
-      case XpmNoMemory:
-	Error(ERR_EXIT, "not enough memory for XPM file '%s'", filename);
-      case XpmColorFailed:
-	Error(ERR_EXIT, "cannot get colors for XPM file '%s'", filename);
-      default:
-	break;
-    }
+    /* create native non-transparent surface for current image */
+    if ((pix[pos] = SDL_DisplayFormat(sdl_image_tmp)) == NULL)
+      Error(ERR_EXIT, "SDL_DisplayFormat() failed: %s", SDL_GetError());
 
-#if DEBUG_TIMING
-    printf("LOADING XPM FILE %s:", filename);
-    debug_print_timestamp(1, "");
-#endif
+    /* create native transparent surface for current image */
+    SDL_SetColorKey(sdl_image_tmp, SDL_SRCCOLORKEY,
+		    SDL_MapRGB(sdl_image_tmp->format, 0x00, 0x00, 0x00));
+    if ((pix_masked[pos] = SDL_DisplayFormat(sdl_image_tmp)) == NULL)
+      Error(ERR_EXIT, "SDL_DisplayFormat() failed: %s", SDL_GetError());
+
+    /* free temporary surface */
+    SDL_FreeSurface(sdl_image_tmp);
 
-#else /* !USE_XPM_LIBRARY */
+#else /* !TARGET_SDL */
 
     pcx_err = Read_PCX_to_Pixmap(display, window, gc, filename,
 				 &pix[pos], &clipmask[pos]);
@@ -755,58 +624,21 @@ void LoadGfx(int pos, struct PictureFileInfo *pic)
 	break;
     }
 
-#if DEBUG_TIMING
-    printf("SUMMARY LOADING PCX FILE %s:", filename);
-    debug_print_timestamp(1, "");
-#endif
-
-#endif /* !USE_XPM_LIBRARY */
-
     if (!pix[pos])
       Error(ERR_EXIT, "cannot get graphics for '%s'", pic->picture_filename);
-  }
 
-  /* zugehörige Maske laden (wenn vorhanden) */
-  if (pic->picture_with_mask)
-  {
-#ifdef USE_XPM_LIBRARY
+    /* setting pix_masked[] to pix[] allows BlitBitmapMasked() to always
+       use pix_masked[], although they are the same when not using SDL */
+    pix_masked[pos] = pix[pos];
 
-    sprintf(basefilename, "%s%s", pic->picture_filename, picturemask_ext);
-    DrawInitText(basefilename, 150, FC_YELLOW);
-    sprintf(filename, "%s/%s/%s",
-	    options.ro_base_directory, GRAPHICS_DIRECTORY, basefilename);
-
-#if DEBUG_TIMING
-    debug_print_timestamp(1, NULL);	/* initialize timestamp function */
-#endif
-
-    xbm_err = XReadBitmapFile(display,window,filename,
-			      &width,&height,&clipmask[pos],&hot_x,&hot_y);
-    switch(xbm_err)
-    {
-      case BitmapSuccess:
-        break;
-      case BitmapOpenFailed:
-	Error(ERR_EXIT, "cannot open XBM file '%s'", filename);
-      case BitmapFileInvalid:
-	Error(ERR_EXIT, "invalid XBM file '%s'", filename);
-      case BitmapNoMemory:
-	Error(ERR_EXIT, "not enough memory for XBM file '%s'", filename);
-	break;
-      default:
-	break;
-    }
+#endif /* !TARGET_SDL */
+  }
 
-#if DEBUG_TIMING
-    printf("LOADING XBM FILE %s:", filename);
-    debug_print_timestamp(1, "");
+#if defined(TARGET_X11)
+  /* check if clip mask was correctly created */
+  if (pic->picture_with_mask && !clipmask[pos])
+    Error(ERR_EXIT, "cannot get clipmask for '%s'", pic->picture_filename);
 #endif
-
-#endif /* USE_XPM_LIBRARY */
-
-    if (!clipmask[pos])
-      Error(ERR_EXIT, "cannot get clipmask for '%s'", pic->picture_filename);
-  }
 }
 
 void InitGadgets()
@@ -1707,7 +1539,9 @@ void InitElementProperties()
     EL_SP_CHIP_UPPER,
     EL_SP_CHIP_LOWER,
     /* additional elements that appeared in newer Supaplex levels */
-    EL_UNSICHTBAR
+    EL_UNSICHTBAR,
+    /* more than one murphy in a level results in an inactive clone */
+    EL_SP_MURPHY_CLONE
   };
   static int ep_sp_element_num = sizeof(ep_sp_element)/sizeof(int);
 
@@ -1960,7 +1794,7 @@ void InitElementProperties()
     for(j=0; j<*(ep2_num[i]); j++)
       Elementeigenschaften2[(ep2_array[i])[j]] |= ep2_bit[i];
 
-  for(i=EL_CHAR_START; i<EL_CHAR_END; i++)
+  for(i=EL_CHAR_START; i<=EL_CHAR_END; i++)
     Elementeigenschaften1[i] |= (EP_BIT_CHAR | EP_BIT_INACTIVE);
 }
 
@@ -1968,43 +1802,47 @@ void CloseAllAndExit(int exit_value)
 {
   int i;
 
-  if (sound_process_id)
+#if defined(TARGET_SDL)
+  StopSounds();
+  FreeSounds(NUM_SOUNDS);
+#else
+  if (sysinfo.audio_process_id)
   {
     StopSounds();
-    kill(sound_process_id, SIGTERM);
+    kill(sysinfo.audio_process_id, SIGTERM);
     FreeSounds(NUM_SOUNDS);
   }
+#endif
 
-  for(i=0; i<NUM_PIXMAPS; i++)
+  for(i=0; i<NUM_BITMAPS; i++)
   {
     if (pix[i])
-    {
-#ifdef USE_XPM_LIBRARY
-      if (i < NUM_PICTURES)	/* XPM pictures */
-      {
-	XFreeColors(display,DefaultColormap(display,screen),
-		    xpm_att[i].pixels,xpm_att[i].npixels,0);
-	XpmFreeAttributes(&xpm_att[i]);
-      }
-#endif
-      XFreePixmap(display,pix[i]);
-    }
+      FreeBitmap(pix[i]);
+
+#if defined(TARGET_SDL)
+    FreeBitmap(pix_masked[i]);
+#else
     if (clipmask[i])
-      XFreePixmap(display,clipmask[i]);
+      FreeBitmap(clipmask[i]);
     if (clip_gc[i])
       XFreeGC(display, clip_gc[i]);
+#endif
   }
 
+#if defined(TARGET_SDL)
+  KeyboardAutoRepeatOn();
+#else
   if (gc)
     XFreeGC(display, gc);
 
   if (display)
   {
-    XAutoRepeatOn(display);
+    KeyboardAutoRepeatOn();
     XCloseDisplay(display);
   }
+#endif
 
-#ifdef MSDOS
+#if !defined(PLATFORM_UNIX)
   dumpErrorFile();
 #endif