From 8c8ad7f5ab70bd12f48c9fdb46d1d860b7c6bc14 Mon Sep 17 00:00:00 2001
From: tildearrow <tildearrow@protonmail.com>
Date: Tue, 28 Jun 2022 22:08:24 -0500
Subject: [PATCH] fix audio saving being totally wrong

---
 src/engine/sfWrapper.cpp | 11 ++++++++++-
 src/engine/sfWrapper.h   |  4 +++-
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/engine/sfWrapper.cpp b/src/engine/sfWrapper.cpp
index f71bff341..f12dc95be 100644
--- a/src/engine/sfWrapper.cpp
+++ b/src/engine/sfWrapper.cpp
@@ -19,6 +19,7 @@
 
 #include "sfWrapper.h"
 #include "../fileutils.h"
+#include "sndfile.h"
 
 sf_count_t _vioGetSize(void* user) {
   return ((SFWrapper*)user)->ioGetSize();
@@ -41,7 +42,14 @@ sf_count_t _vioTell(void* user) {
 }
 
 sf_count_t SFWrapper::ioGetSize() {
-  return (sf_count_t)len;
+  sf_count_t ret=(sf_count_t)len;
+  if (fileMode==SFM_WRITE || fileMode==SFM_RDWR) {
+    ssize_t lastTell=ftell(f);
+    fseek(f,0,SEEK_END);
+    ret=(sf_count_t)ftell(f);
+    fseek(f,lastTell,SEEK_SET);
+  }
+  return ret;
 }
 
 sf_count_t SFWrapper::ioSeek(sf_count_t offset, int whence) {
@@ -108,5 +116,6 @@ SNDFILE* SFWrapper::doOpen(const char* path, int mode, SF_INFO* sfinfo) {
   }
 
   sf=sf_open_virtual(&vio,mode,sfinfo,this);
+  if (sf!=NULL) fileMode=mode;
   return sf;
 }
\ No newline at end of file
diff --git a/src/engine/sfWrapper.h b/src/engine/sfWrapper.h
index 323871597..6e984a454 100644
--- a/src/engine/sfWrapper.h
+++ b/src/engine/sfWrapper.h
@@ -35,6 +35,7 @@ class SFWrapper {
   size_t len;
   SF_VIRTUAL_IO vio;
   SNDFILE* sf;
+  int fileMode;
 
   public:
     sf_count_t ioGetSize();
@@ -48,7 +49,8 @@ class SFWrapper {
     SFWrapper():
       f(NULL),
       len(0),
-      sf(NULL) {}
+      sf(NULL),
+      fileMode(0) {}
 };
 
 #endif