-fix loading of samples in mod, s3m and xm. Fixes #2553

3 files changed, 30 insertions, 15 deletions

diff --git a/drivers/chibi/cp_loader_mod.cpp b/drivers/chibi/cp_loader_mod.cpp
index 98174ff9b1..6340a6f5ea 100644
--- a/drivers/chibi/cp_loader_mod.cpp
+++ b/drivers/chibi/cp_loader_mod.cpp
@@ -446,18 +446,19 @@ CPLoader::Error CPLoader_MOD::load_song(const char *p_file,CPSong *p_song,bool p
 		if (sid.is_null()) {
 			continue; //empty sample, not stored?
 		}
-		
+		sm->lock_data(sid);
+		uint8_t *dataptr = (uint8_t*)sm->get_data(sid);
+
 		int len=sm->get_size(sid);
 		for (int s=0;s<len;s++) {
 			
 			uint8_t d=file->get_byte();
 			//d-=128; //convert to signed
 			int8_t*ds=(int8_t*)&d;
-			int16_t d16=*ds;
-			d16<<=8;
-			sm->set_data( sid, s, d16 );
+			dataptr[s]=*ds;
 			
 		}
+		sm->unlock_data(sid);
 	}
 	
 	file->close();
diff --git a/drivers/chibi/cp_loader_s3m.cpp b/drivers/chibi/cp_loader_s3m.cpp
index c21f7bdd38..073f35791c 100644
--- a/drivers/chibi/cp_loader_s3m.cpp
+++ b/drivers/chibi/cp_loader_s3m.cpp
@@ -196,8 +196,12 @@ CPLoader::Error  CPLoader_S3M::load_sample(CPSample *p_sample) {
 		
 		if (id.is_null())
 			return FILE_OUT_OF_MEMORY;
+
+		sm->lock_data(id);
+		void *dataptr = sm->get_data(id);
 		
-		for (int c=0;c<(data_is_stereo?2:1);c++) {
+		int chans = (data_is_stereo?2:1);
+		for (int c=0;c<chans;c++) {
 			for (int i=0;i<sample_size;i++) {
 				
 				if (data_is_16bits) {
@@ -206,7 +210,7 @@ CPLoader::Error  CPLoader_S3M::load_sample(CPSample *p_sample) {
 					s-=32768; //toggle sign
 					
 					int16_t *v=(int16_t*)&s;
-					sm->set_data(id,i,*v,c);
+					((int16_t*)dataptr)[i*chans+c]=*v;
 				} else {
 						
 						
@@ -214,16 +218,16 @@ CPLoader::Error  CPLoader_S3M::load_sample(CPSample *p_sample) {
 					uint8_t s=file->get_byte();
 					s-=128; //toggle sign
 					v=(int8_t*)&s;
-					int16_t v16=*v;
-					v16<<=8;
-					sm->set_data(id,i,v16,c);
-						
+					((int8_t*)dataptr)[i*chans+c]=*v;
+
 				}
-				
-				
+
 			}
 			
 		}
+
+		sm->unlock_data(id);
+
 						  
 		sm->set_loop_begin( id, loop_begin );
 		sm->set_loop_end( id, loop_end );
diff --git a/drivers/chibi/cp_loader_xm.cpp b/drivers/chibi/cp_loader_xm.cpp
index 8bde6b673e..66f36954ce 100644
--- a/drivers/chibi/cp_loader_xm.cpp
+++ b/drivers/chibi/cp_loader_xm.cpp
@@ -627,6 +627,10 @@ CPLoader::Error CPLoader_XM::load_instrument_internal(CPInstrument *p_instr,bool
 			CPSample *sample=song->get_sample(sample_index[j]);
 			CPSample_ID sid=sample->get_sample_data();
 
+			sm->lock_data(sid);
+
+			void*dataptr=sm->get_data(sid);
+
 			if (sm->is_16bits( sid)) {
 
 				int16_t old=0;
@@ -638,8 +642,9 @@ CPLoader::Error CPLoader_XM::load_instrument_internal(CPInstrument *p_instr,bool
 					int16_t sampleval=file->get_word();
 					newsample=sampleval+old;
 					old=newsample;
-					
-					sm->set_data( sid, k, newsample );
+
+					((int16_t*)dataptr)[k]=newsample;
+					//sm->set_data( sid, k, newsample );
 				}
 			} else {
 
@@ -653,10 +658,15 @@ CPLoader::Error CPLoader_XM::load_instrument_internal(CPInstrument *p_instr,bool
 					newsample=sampleval+old;
 					old=newsample;
 					
-					sm->set_data( sid, k, (int16_t)newsample << 8 );
+					((int8_t*)dataptr)[k]=newsample;
+
+					//sm->set_data( sid, k, (int16_t)newsample << 8 );
 					
 				}
 			}
+
+			sm->unlock_data(sid);
+
 		}
 
 		for (int j=0;j<96;j++) {