GROOVIE: Remove groovie2 8bpp mode

It didn't work properly, it's not what the original did, and spooky mode needs to be implemented completely differently

engines/groovie/configure.engine

@@ -1,4 +1,4 @@
 # This file is included from the main "configure" script
 # add_engine [name] [desc] [build-by-default] [subengines] [base games] [deps]
 add_engine groovie "Groovie" yes "groovie2" "7th Guest"
-add_engine groovie2 "Groovie 2 games" no "" "" "jpeg"
+add_engine groovie2 "Groovie 2 games" no "" "" "jpeg 16bit"

engines/groovie/groovie.cpp

@@ -50,7 +50,8 @@ namespace Groovie {
 GroovieEngine::GroovieEngine(OSystem *syst, const GroovieGameDescription *gd) :
 	Engine(syst), _gameDescription(gd), _debugger(NULL), _script(NULL),
 	_resMan(NULL), _grvCursorMan(NULL), _videoPlayer(NULL), _musicPlayer(NULL),
-	_graphicsMan(NULL), _macResFork(NULL), _waitingForInput(false), _font(NULL) {
+	_graphicsMan(NULL), _macResFork(NULL), _waitingForInput(false), _font(NULL),
+	_spookyMode(false) {
 
 	// Adding the default directories
 	const Common::FSNode gameDataDir(ConfMan.get("path"));
@@ -107,9 +108,13 @@ Common::Error GroovieEngine::run() {
 		// Request the mode with the highest precision available
 		initGraphics(640, 480, true, NULL);
 
-		// Save the enabled mode as it can be both an RGB mode or CLUT8
+		// Save the enabled mode
 		_pixelFormat = _system->getScreenFormat();
-		_mode8bit = (_pixelFormat == Graphics::PixelFormat::createFormatCLUT8());
+
+		// TODO: Eventually drop 16bpp mode
+		if (_pixelFormat.bytesPerPixel == 1)
+			return Common::kUnsupportedColorMode;
+
 		break;
 	case kGroovieT7G:
 		initGraphics(640, 480, true);

engines/groovie/groovie.h

@@ -110,7 +110,7 @@ class GroovieEngine : public Engine {
 	void waitForInput();
 
 	Graphics::PixelFormat _pixelFormat;
-	bool _mode8bit;
+	bool _spookyMode;
 	Script *_script;
 	ResMan *_resMan;
 	GrvCursorMan *_grvCursorMan;

engines/groovie/roq.cpp

@@ -50,19 +50,6 @@ ROQPlayer::ROQPlayer(GroovieEngine *vm) :
 	// Create the work surfaces
 	_currBuf = new Graphics::Surface();
 	_prevBuf = new Graphics::Surface();
-
-	if (_vm->_mode8bit) {
-		byte pal[256 * 3];
-
-		// Set a grayscale palette
-		for (int i = 0; i < 256; i++) {
-			pal[(i * 3) + 0] = i;
-			pal[(i * 3) + 1] = i;
-			pal[(i * 3) + 2] = i;
-		}
-
-		_syst->getPaletteManager()->setPalette(pal, 0, 256);
-	}
 }
 
 ROQPlayer::~ROQPlayer() {
@@ -118,18 +105,11 @@ void ROQPlayer::buildShowBuf() {
 		byte *out = (byte *)_bg->getBasePtr(0, line);
 		byte *in = (byte *)_currBuf->getBasePtr(0, line / _scaleY);
 		for (int x = 0; x < _bg->w; x++) {
-			if (_vm->_mode8bit) {
-				// Just use the luminancy component
-				*out = *in;
-#ifdef USE_RGB_COLOR
-			} else {
-				// Do the format conversion (YUV -> RGB -> Screen format)
-				byte r, g, b;
-				Graphics::YUV2RGB(*in, *(in + 1), *(in + 2), r, g, b);
-				// FIXME: this is fixed to 16bit
-				*(uint16 *)out = (uint16)_vm->_pixelFormat.RGBToColor(r, g, b);
-#endif // USE_RGB_COLOR
-			}
+			// Do the format conversion (YUV -> RGB -> Screen format)
+			byte r, g, b;
+			Graphics::YUV2RGB(*in, *(in + 1), *(in + 2), r, g, b);
+			// FIXME: this is fixed to 16bit
+			*(uint16 *)out = _vm->_pixelFormat.RGBToColor(r, g, b);
 
 			// Skip to the next pixel
 			out += _vm->_pixelFormat.bytesPerPixel;