--- uae/src/picasso96.c	2018/04/24 17:16:38	1.1.1.17
+++ uae/src/picasso96.c	2018/04/24 17:18:27	1.1.1.18
@@ -91,9 +91,66 @@ static int set_panning_called = 0;
    SetPanning call.  */
 static uaecptr oldscr;
 
+int screen_is_picasso;
+
 static uae_u32 p2ctab[256][2];
 
 /*
+ * Screen handling.
+ */
+
+static void set_window_for_picasso (void)
+{
+    P96TRACE (("Function: set_window_for_picasso\n"));
+#if 0
+    if (current_width == picasso_vidinfo.width && current_height == picasso_vidinfo.height)
+	return;
+#endif
+
+    graphics_subshutdown (0);
+    graphics_subinit ();
+
+    DX_SetPalette (0, 256);
+}
+
+void gfx_set_picasso_modeinfo (int w, int h, int depth, int rgbfmt)
+{
+    P96TRACE (("Function: gfx_set_picasso_modeinfo w: %i h: %i depth: %i rgbfmt: %i\n", w, h, depth, rgbfmt));
+
+    if (screen_is_picasso
+	&& picasso_vidinfo.width == w
+	&& picasso_vidinfo.height == h)
+	return;
+
+    picasso_vidinfo.width = w;
+    picasso_vidinfo.height = h;
+    picasso_vidinfo.depth = depth;
+    if (screen_is_picasso)
+	set_window_for_picasso ();
+}
+
+void gfx_set_picasso_baseaddr (uaecptr a)
+{
+}
+
+void gfx_set_picasso_state (int on)
+{
+    P96TRACE (("Function: gfx_set_picasso_state: %d\n", on));
+
+    if (on == screen_is_picasso)
+	return;
+
+    graphics_subshutdown (0);
+    screen_is_picasso = on;
+    graphics_subinit ();
+
+    if (on)
+	DX_SetPalette (0, 256);
+    else
+	reset_drawing ();
+}
+
+/*
  * Debugging dumps
  */
 
@@ -332,8 +389,13 @@ static void CopyLibResolutionStructureU2
     char *uaememptr = 0;
     int i;
 
-    uaememptr = gfxmem_xlate (amigamemptr);	/* I know that amigamemptr is inside my gfxmem chunk, so I can just do the xlate() */
-    memset (uaememptr, 0, PSSO_LibResolution_sizeof);	/* zero out our LibResolution structure */
+    /* I know that amigamemptr is inside my gfxmem chunk, so I can just
+     * do the xlate() */
+    uaememptr = gfxmem_xlate (amigamemptr);
+
+    /* zero out our LibResolution structure */
+    memset (uaememptr, 0, PSSO_LibResolution_sizeof);
+
     strcpy (uaememptr + PSSO_LibResolution_P96ID, libres->P96ID);
     put_long (amigamemptr + PSSO_LibResolution_DisplayID, libres->DisplayID);
     put_word (amigamemptr + PSSO_LibResolution_Width, libres->Width);
@@ -389,7 +451,6 @@ static void AmigaListAddTail (uaecptr li
  * filled rectangle in the frame buffer; it can be used as a memcpy source if
  * there is no OS specific function to fill the rectangle.
  */
-
 static void do_fillrect (uae_u8 * src, int x, int y, int width, int height,
 			 uae_u32 pen, int Bpp, RGBFTYPE rgbtype)
 {
@@ -2331,7 +2392,7 @@ static void write_gfx_byte (uaecptr addr
 static uae_u32 REGPARAM2 gfxmem_lget (uaecptr addr)
 {
     uae_u32 *m;
-    addr -= gfxmem_start & gfxmem_mask;
+    addr -= gfxmem_start;
     addr &= gfxmem_mask;
     m = (uae_u32 *) (gfxmemory + addr);
     return do_get_mem_long (m);
@@ -2340,7 +2401,7 @@ static uae_u32 REGPARAM2 gfxmem_lget (ua
 static uae_u32 REGPARAM2 gfxmem_wget (uaecptr addr)
 {
     uae_u16 *m;
-    addr -= gfxmem_start & gfxmem_mask;
+    addr -= gfxmem_start;
     addr &= gfxmem_mask;
     m = (uae_u16 *) (gfxmemory + addr);
     return do_get_mem_word (m);
@@ -2348,7 +2409,7 @@ static uae_u32 REGPARAM2 gfxmem_wget (ua
 
 static uae_u32 REGPARAM2 gfxmem_bget (uaecptr addr)
 {
-    addr -= gfxmem_start & gfxmem_mask;
+    addr -= gfxmem_start;
     addr &= gfxmem_mask;
     return gfxmemory[addr];
 }
@@ -2356,7 +2417,7 @@ static uae_u32 REGPARAM2 gfxmem_bget (ua
 static void REGPARAM2 gfxmem_lput (uaecptr addr, uae_u32 l)
 {
     uae_u32 *m;
-    addr -= gfxmem_start & gfxmem_mask;
+    addr -= gfxmem_start;
     addr &= gfxmem_mask;
     m = (uae_u32 *) (gfxmemory + addr);
     do_put_mem_long (m, l);
@@ -2368,7 +2429,7 @@ static void REGPARAM2 gfxmem_lput (uaecp
 static void REGPARAM2 gfxmem_wput (uaecptr addr, uae_u32 w)
 {
     uae_u16 *m;
-    addr -= gfxmem_start & gfxmem_mask;
+    addr -= gfxmem_start;
     addr &= gfxmem_mask;
     m = (uae_u16 *) (gfxmemory + addr);
     do_put_mem_word (m, (uae_u16) w);
@@ -2379,7 +2440,7 @@ static void REGPARAM2 gfxmem_wput (uaecp
 
 static void REGPARAM2 gfxmem_bput (uaecptr addr, uae_u32 b)
 {
-    addr -= gfxmem_start & gfxmem_mask;
+    addr -= gfxmem_start;
     addr &= gfxmem_mask;
     gfxmemory[addr] = b;
 
@@ -2389,14 +2450,14 @@ static void REGPARAM2 gfxmem_bput (uaecp
 
 static int REGPARAM2 gfxmem_check (uaecptr addr, uae_u32 size)
 {
-    addr -= gfxmem_start & gfxmem_mask;
+    addr -= gfxmem_start;
     addr &= gfxmem_mask;
     return (addr + size) < allocated_gfxmem;
 }
 
 static uae_u8 REGPARAM2 *gfxmem_xlate (uaecptr addr)
 {
-    addr -= gfxmem_start & gfxmem_mask;
+    addr -= gfxmem_start;
     addr &= gfxmem_mask;
     return gfxmemory + addr;
 }