The DIG SFX support - thanks to aquadran

svn-id: r4303

1 files changed, 53 insertions, 0 deletions

diff --git a/sound.cpp b/sound.cpp
index 48b8505a6d..4b0477d771 100644
--- a/sound.cpp
+++ b/sound.cpp
@@ -87,6 +87,59 @@ void Scumm::processSoundQues()
 						data[1], data[2], data[3], data[4], data[5], data[6], data[7]
 				);
 #endif
+			if ((_gameId == GID_DIG) && (data[0] == 12)){
+				uint32 size, rate, tag, chan;
+				uint8 * ptr = getResourceAddress(rtSound, data[1]);
+				if (ptr != NULL) {
+					ptr+=16;       /* Skip header */
+					for (;;) {
+				    		tag = READ_BE_UINT32(ptr);  ptr+=4;
+						switch(tag) {
+							case MKID_BE('FRMT'):
+								size = READ_BE_UINT32(ptr); ptr+=16;					
+								rate = READ_BE_UINT32(ptr); ptr+=4;
+								chan = READ_BE_UINT32(ptr); ptr+=4;
+							break;
+							case MKID_BE('TEXT'):
+							case MKID_BE('REGN'):
+							case MKID_BE('STOP'):
+								size = READ_BE_UINT32(ptr); ptr+=size+4;
+							break;
+							case MKID_BE('DATA'):
+								size = READ_BE_UINT32(ptr); ptr+=4;
+							break;
+							default:
+								error("Unknown sfx header %c%c%c%c", tag>>24, tag>>16, tag>>8, tag);
+						}
+						if (tag == MKID_BE('DATA')) break;
+					}
+					if (chan == 1)
+					{
+						uint32 s_size = (size * 2) / 3;
+						byte * buffer = (byte*)malloc (s_size);
+						uint32 l = 0, r = 0, tmp;
+						memset (buffer, 0, s_size);
+						for (; l < size - 1; l += 3)
+						{
+							tmp = (ptr[l + 1] & 0x0f) << 8;
+							tmp = (tmp | ptr[l + 0]) << 4;
+							tmp -= 0x8000;
+//							buffer[r++] = (uint8)(tmp & 0xff);
+							buffer[r++] = (uint8)((tmp >> 8) & 0xff);
+
+							tmp = (ptr[l + 1] & 0xf0) << 4;
+							tmp = (tmp | ptr[l + 2]) << 4;
+							tmp -= 0x8000;
+//							buffer[r++] = (uint8)(tmp & 0xff);
+							buffer[r++] = (uint8)((tmp >> 8) & 0xff);
+						} 
+						_mixer->play_raw(NULL, buffer, s_size, rate, SoundMixer::FLAG_AUTOFREE);
+					} else {
+						warning("DIG: ignoring stereo sample");
+					}
+				}
+			}
+																										    																																						
 			if (!(_features & GF_AFTER_V7)) {
 				if (se)
 					_vars[VAR_SOUNDRESULT] =