DIRECTOR: Parse the RIFX from v4 Mac versions

scummvm · Aug 3, 2016 · 9a9df86 · 9a9df86
1 parent 09f6949
commit 9a9df86
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Showing 2 changed files with 40 additions and 0 deletions.
diff --git a/engines/director/director.cpp b/engines/director/director.cpp
@@ -25,6 +25,7 @@
 #include "common/debug.h"
 #include "common/scummsys.h"
 #include "common/error.h"
+#include "common/macresman.h"
 #include "common/stream.h"
 #include "common/system.h"
 #include "common/textconsole.h"
@@ -42,17 +43,21 @@ DirectorEngine::DirectorEngine(OSystem *syst, const DirectorGameDescription *gam
 	syncSoundSettings();
 
 	_mainArchive = 0;
+	_macBinary = 0;
 }
 
 DirectorEngine::~DirectorEngine() {
 	delete _mainArchive;
+	delete _macBinary;
 }
 
 Common::Error DirectorEngine::run() {
 	debug("Starting v%d Director game", getVersion());
 
 	if (getPlatform() == Common::kPlatformWindows)
 		loadEXE();
+	else
+		loadMac();
 
 	return Common::kNoError;
 }
@@ -142,6 +147,34 @@ void DirectorEngine::loadEXERIFX(Common::SeekableReadStream *stream, uint32 offs
 		error("Failed to load RIFX from EXE");
 }
 
+void DirectorEngine::loadMac() {
+	if (getVersion() < 4)
+		error("Unhandled pre-v4 Mac version");
+
+	_macBinary = new Common::MacResManager();
+
+	if (!_macBinary->open(getEXEName()) || !_macBinary->hasDataFork())
+		error("Failed to open Mac binary '%s'", getEXEName().c_str());
+
+	Common::SeekableReadStream *dataFork = _macBinary->getDataFork();
+	_mainArchive = new RIFXArchive();
+
+	// First we need to detect PPC vs. 68k
+
+	uint32 tag = dataFork->readUint32LE();
+
+	if (tag == MKTAG('P', 'J', '9', '3')) {
+		// PPC: The RIFX shares the data fork with the binary
+		dataFork->seek(dataFork->readUint32BE());
+	} else {
+		// 68k: The RIFX is the only thing in the data fork
+		dataFork->seek(0);
+	}
+
+	if (!_mainArchive->openStream(dataFork))
+		error("Failed to load RIFX from Mac binary");
+}
+
 Common::String DirectorEngine::readPascalString(Common::SeekableReadStream &stream) {
 	byte length = stream.readByte();
 	Common::String x;

diff --git a/engines/director/director.h b/engines/director/director.h
@@ -29,6 +29,10 @@
 
 class OSystem;
 
+namespace Common {
+class MacResManager;
+}
+
 namespace Director {
 
 enum DirectorGameID {
@@ -65,9 +69,12 @@ class DirectorEngine : public ::Engine {
 	void loadEXEv5(Common::SeekableReadStream *stream);
 	void loadEXERIFX(Common::SeekableReadStream *stream, uint32 offset);
 
+	void loadMac();
+
 	Common::String readPascalString(Common::SeekableReadStream &stream);
 
 	Archive *_mainArchive;
+	Common::MacResManager *_macBinary;
 };
 
 } // End of namespace Director