From d993fbb44bc9adeefc612bd32d4a9d5b7fcac9d5 Mon Sep 17 00:00:00 2001
From: halleyscometsw <halleyscometsw@51a99a44-fe44-0410-b1ba-c3e57ba2b86b>
Date: Tue, 31 Aug 2010 04:44:04 +0000
Subject: [PATCH] do little endian samples proper

git-svn-id: https://vgmstream.svn.sourceforge.net/svnroot/vgmstream@826 51a99a44-fe44-0410-b1ba-c3e57ba2b86b
---
 src/util.c  | 11 +++++++++++
 src/util.h  |  1 +
 test/test.c | 13 +++----------
 3 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/src/util.c b/src/util.c
index 7c7b012d..412d03e8 100644
--- a/src/util.c
+++ b/src/util.c
@@ -127,6 +127,17 @@ void make_wav_header(uint8_t * buf, int32_t sample_count, int32_t sample_rate, i
     put_32bitLE(buf+0x28, (int32_t)bytecount);
 }
 
+void swap_samples_le(sample *buf, int count) {
+    int i;
+    for (i=0;i<count;i++) {
+        uint8_t b0 = buf[i]&0xff;
+        uint8_t b1 = buf[i]>>8;
+        uint8_t *p = (uint8_t*)&(buf[i]);
+        p[0] = b0;
+        p[1] = b1;
+    }
+}
+
 /* length is maximum length of dst. dst will always be null-terminated if
  * length > 0 */
 void concatn(int length, char * dst, const char * src) {
diff --git a/src/util.h b/src/util.h
index 6f7799fe..ff702e25 100644
--- a/src/util.h
+++ b/src/util.h
@@ -63,6 +63,7 @@ static inline int clamp16(int32_t val) {
 /* make a header for PCM .wav */
 /* buffer must be 0x2c bytes */
 void make_wav_header(uint8_t * buf, int32_t sample_count, int32_t sample_rate, int channels);
+void swap_samples_le(sample *buf, int count);
 
 void concatn(int length, char * dst, const char * src);
 void concatn_doublenull(int length, char * dst, const char * src);
diff --git a/test/test.c b/test/test.c
index ffabfeef..36f96364 100644
--- a/test/test.c
+++ b/test/test.c
@@ -242,6 +242,7 @@ int main(int argc, char ** argv) {
     /* decode forever */
     while (forever) {
         render_vgmstream(buf,BUFSIZE,s);
+        swap_samples_le(buf,s->channels*BUFSIZE);
         fwrite(buf,sizeof(sample)*s->channels,BUFSIZE,outfile);
     }
 
@@ -265,6 +266,7 @@ int main(int argc, char ** argv) {
                 }
             }
         }
+        swap_samples_le(buf,s->channels*toget);
         fwrite(buf,sizeof(sample)*s->channels,toget,outfile);
     }
 
@@ -353,16 +355,7 @@ int main(int argc, char ** argv) {
             }
 
             /* do proper little endian samples */
-            {
-                int k;
-                for (k=0;k<toget*s->channels;k++) {
-                    uint8_t b0 = buf[k]&0xff;
-                    uint8_t b1 = buf[k]>>8;
-                    uint8_t *p = (uint8_t*)&buf[k];
-                    p[0] = b0;
-                    p[1] = b1;
-                }
-            }
+            swap_samples_le(buf,s->channels*toget);
             fwrite(buf,sizeof(sample)*s->channels,toget,outfile);
         }
         fclose(outfile); outfile = NULL;