add pref items for scaling

BasiliskII/src/SDL/video_sdl2.cpp

@@ -735,8 +735,8 @@ static SDL_Surface * init_sdl_video(int width, int height, int bpp, Uint32 flags
 		}
 	}
 	
-	// Apply anti-aliasing, if and when appropriate (usually in fullscreen)
-	SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "linear");
+	SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, PrefsFindBool("scale_nearest") ? "nearest" : "linear");
+	
 /*
 	// Always use a resize-able window.  This helps allow SDL to manage
 	// transitions involving fullscreen to or from windowed-mode.
@@ -852,6 +852,8 @@ static SDL_Surface * init_sdl_video(int width, int height, int bpp, Uint32 flags
 		return NULL;
 	}
 
+	SDL_RenderSetIntegerScale(sdl_renderer, PrefsFindBool("scale_integer") ? SDL_TRUE : SDL_FALSE);
+
     return guest_surface;
 }
 

BasiliskII/src/prefs_items.cpp

@@ -73,6 +73,8 @@ prefs_desc common_prefs_items[] = {
 	{"mousewheelmode",TYPE_BOOLEAN,"Use WheelMode"},
 	{"mousewheellines",TYPE_INT32,"wheel line nb"},
 	{"hotkey",TYPE_INT32,false,"hotkey modifier"},
+	{"scale_nearest",TYPE_BOOLEAN,false,"nearest neighbor scaling"},
+	{"scale_integer",TYPE_BOOLEAN,false,"integer scaling"},
 	{NULL, TYPE_END, false, NULL} // End of list
 };
 

SheepShaver/src/prefs_items.cpp

@@ -60,6 +60,8 @@ prefs_desc common_prefs_items[] = {
 	{"keyboardtype", TYPE_INT32, false, "hardware keyboard type"},
 	{"hardcursor", TYPE_BOOLEAN, false, "hardware mouse cursor"},
 	{"hotkey", TYPE_INT32, false,       "hotkey modifier"},
+	{"scale_nearest",TYPE_BOOLEAN,false,"nearest neighbor scaling"},
+	{"scale_integer",TYPE_BOOLEAN,false,"integer scaling"},
 	{NULL, TYPE_END, false, NULL} // End of list
 };