add preliminary bits for making xmi music in humongous games work, just need someone to do something with the pointer now :)

svn-id: r7072

2 files changed, 35 insertions, 1 deletions

diff --git a/scumm/scummvm.cpp b/scumm/scummvm.cpp
index 42695b9fba..80a5bd03c2 100644
--- a/scumm/scummvm.cpp
+++ b/scumm/scummvm.cpp
@@ -460,7 +460,10 @@ void Scumm::initScummVars() {
 		_vars[VAR_VIDEOMODE] = 0x13;
 		_vars[VAR_HEAPSPACE] = 1400;
 		_vars[VAR_MOUSEPRESENT] = true; // FIXME - used to be 0, but that seems odd?!?
-		_vars[VAR_SOUNDPARAM] = 0;
+//		if (_features & GF_HUMONGOUS) // FIXME uncomment when XMI support is added
+//			_vars[VAR_SOUNDPARAM] = 1; // soundblaster for music
+//		else
+			_vars[VAR_SOUNDPARAM] = 0;
 		_vars[VAR_SOUNDPARAM2] = 0;
 		_vars[VAR_SOUNDPARAM3] = 0;
 
diff --git a/scumm/sound.cpp b/scumm/sound.cpp
index b06d82b14c..716decf6ea 100644
--- a/scumm/sound.cpp
+++ b/scumm/sound.cpp
@@ -222,6 +222,37 @@ void Sound::playSound(int soundID) {
 			_scumm->_mixer->playRaw(NULL, sound, size, rate, flags, soundID);
 			return;
 		}
+		// XMI MIDI
+		else if ((READ_UINT32_UNALIGNED(ptr) == MKID('MIDI')) && (_scumm->_features & GF_HUMONGOUS)) {
+			// skip HSHD
+			ptr += 8 + READ_BE_UINT32_UNALIGNED(ptr+12);
+			if (READ_UINT32_UNALIGNED(ptr) != MKID('SDAT'))
+				return; // abort
+			
+			size = READ_BE_UINT32_UNALIGNED(ptr+4) - 8;
+			ptr += 8; // don't need SDAT block anymore
+
+			// XMI playing stuff goes here
+			// ptr should be pointing to XMI file in memory
+
+			// FIXME: dumping xmi files for testing, remove when working
+			if (1) {
+				File out;
+				char buf[64];
+				sprintf(buf, "dumps/sound-%d.xmi", soundID);
+				
+				out.open(buf, "", 1);
+				if (out.isOpen() == false) {
+					out.open(buf, "", 2);
+					if (out.isOpen() == false)
+						return;
+					out.write(ptr, size);
+				}
+				out.close();
+			}
+
+			return;
+		}
 		else if (READ_UINT32_UNALIGNED(ptr) == MKID('Crea')) {
 			_scumm->_imuseDigital->startSound(soundID);
 			return;