Preliminary BE/Mac support.

To compile on Mac OSX: edit the Makefile and uncomment the OSX LIBS/CXXFLAGS additions (and comment out the -lGL -lGLU line)
and edit lua/src/lvm.c to use the Big Endian macro.

Makefile

@@ -4,8 +4,14 @@ AR = ar rcu
 CXXFLAGS = -g -W -Wall -Ilua/include `sdl-config --cflags` -DUNIX \
 	   -Wno-multichar # -O2
 LDFLAGS = -g -W -Wall # -O2
-LIBS =  -Llua/lib -llua -llualib `sdl-config --libs` \
+LIBS =  -Llua/lib -llua -llualib `sdl-config --libs` -lz 
-	-lGL -lGLU -lz
+
+LIBS += -lGL -lGLU
+
+# For OSX use these instead of -lGL and -lGLU
+#LIBS += -framework OpenGL -framework GLUT 
+#CXXFLAGS += -DOSX
+
 OBJS = main.o lab.o bitmap.o model.o resource.o material.o debug.o \
 	textsplit.o lua.o registry.o localize.o scene.o engine.o actor.o \
 	sound.o timer.o keyframe.o costume.o walkplane.o textobject.o \

README

@@ -5,7 +5,7 @@ Residual: A LucasArts 3D game interpreter           Version:      0.02-CVS
 What is Residual?
 -----------------
 Residual is a ScummVM (http://www.scummvm.org/) sub-project to play LucasArts'
-LUA-bassed 3D adventures, such as Grim Fandango. Residual is an OpenGL program,
+LUA-based 3D adventures, such as Grim Fandango. Residual is an OpenGL program,
 and requires a 3D card with working OpenGL support.
 
 The main ScummVM program can run LucasArts 2D SCUMM adventures (among others).

bitmap.cpp

@@ -55,6 +55,12 @@ Resource(filename) {
 				decompress_codec3(data + pos + 4, data_[i]);
 				pos += compressed_len + 12;
 		}
+
+	#ifdef SYSTEM_BIG_ENDIAN
+		for (int j = 0; j < width_ * height_; ++j) {
+			((uint16 *)data_[i])[j] = SWAP_BYTES_16(((uint16 *)data_[i])[j]);
+		}
+	#endif
 	}	
 	
 	if (format_ == 1) {

blocky16.cpp

@@ -645,10 +645,18 @@ static void bompInit(const byte *src) {
 }
 
 static void bompDecodeMain(byte *dst, const byte *src, int size) {
+	int count = size / 2;
+	byte *start = dst;
+
 	bompInit(src);
 	while (size--) {
 		*dst++ = bompDecode();
 	}
+#ifdef SYSTEM_BIG_ENDIAN              
+        for (int i = 0; i < count; ++i) {
+                ((uint16 *)start)[i] = SWAP_BYTES_16(((uint16 *)start)[i]);
+        }       
+#endif  
 }
 
 void Blocky16::decode(byte *dst, const byte *src) {
@@ -680,6 +688,11 @@ void Blocky16::decode(byte *dst, const byte *src) {
 
 	switch(src[18]) {
 	case 0:
+	#ifdef SYSTEM_BIG_ENDIAN
+                for (int i = 0; i < _width * _height; ++i) {
+                        ((uint16*)gfx_data)[i] = TO_LE_16(((uint16*)gfx_data)[i]);
+                }
+	#endif
 		memcpy(_curBuf, gfx_data, _frameSize);
 		break;
 	case 1:

lua.cpp

@@ -1084,7 +1084,9 @@ static void NewObjectState() {
 	if (!unk2)
 		unk3 = check_int(6);		// ?
 
+#ifndef OSX
 	warning("Stub: newObjectState(%d, %s, %s)", setupID, bitmap, zbitmap);
+#endif
 	// object = scene.addObjectState;
 	// lua_pushusertag(object, object_tag);
 }

lua/src/lvm.c

@@ -28,7 +28,13 @@
 
 
 #define skip_word(pc)	(pc+=2)
+
+/* Little Endian */
 #define get_word(pc)	(*((unsigned short*)(pc)))
+
+/* Big Endian */
+/*#define get_word(pc)    ((*((pc)+1)<<8)|(*(pc))) */
+
 #define next_word(pc)   (pc+=2, get_word(pc-2))
 
 

main.cpp

@@ -88,16 +88,24 @@ int main(int argc, char *argv[]) {
 	Bitmap *splash_bm = ResourceLoader::instance()->loadBitmap("splash.bm");
 
 	SDL_Event event;
+	
+// For some reason we don't get the SDL_VIDEOEXPOSE event on OSX, so just don't wait for it.
+#ifndef OSX
 	while (SDL_PollEvent(&event)) {
 		if (event.type == SDL_VIDEOEXPOSE) {
+#else
+	SDL_PollEvent(&event);
+#endif	
 			g_driver->clearScreen();
 
 			Bitmap::prepareDraw();
 			splash_bm->draw();
 
 			g_driver->flipBuffer();
+#ifndef OSX
 		}
 	}
+#endif
 
 	lua_open();
 

model.cpp

@@ -691,7 +691,7 @@ void Model::Mesh::draw() const {
 		}
 
 		if (SCREENBLOCKS_GLOBAL == 1)
-			screenBlocksAddRectangle( top, right, left, bottom, bestDepth );
+			screenBlocksAddRectangle( (int)top, (int)right, (int)left, (int)bottom, (int)bestDepth );
 	}
 	/*
 	glDisable(GL_DEPTH_TEST);

smush.cpp

@@ -63,7 +63,13 @@ void Smush::init() {
 	_movieTime = 0;
 	_videoFinished = false;
 	_videoPause = false;
+//HACK: If we don't set it here, it'll never get set at all..
+//	This is BAD - but until we find the source of the problem, this'll have to do.
+#ifndef OSX
 	_updateNeeded = false;
+#else
+	_updateNeeded = true;
+#endif
 	if (!_surface)
 		_surface = SDL_CreateRGBSurface(SDL_SWSURFACE, _width, _height, 16, 0x0000f800, 0x000007e0, 0x0000001f, 0x00000000);
 	if (!_bufSurface)
@@ -94,8 +100,10 @@ void Smush::handleWave(const byte *src, uint32 size) {
 	int16 *dst = new int16[size * _channels];
 	decompressVima((char *)src, dst, size * _channels * 2, destTable);
 
+#ifndef SYSTEM_BIG_ENDIAN
 	for (uint32 j = 0; j < size * _channels; j++)
 		dst[j] = SWAP_BYTES_16(dst[j]);
+#endif
 	
 	int flags = SoundMixer::FLAG_16BITS | SoundMixer::FLAG_AUTOFREE;
 //	int flags = SoundMixer::FLAG_16BITS | SoundMixer::FLAG_AUTOFREE | SoundMixer::FLAG_LITTLE_ENDIAN;