From 17f6ea5c6a2f9aad15c52c2f163c95ae3ab96232 Mon Sep 17 00:00:00 2001
From: LTVA1 <87536432+LTVA1@users.noreply.github.com>
Date: Tue, 20 Aug 2024 22:45:21 +0300
Subject: [PATCH] account for non-beginning loop point location

Ig I will optimize some of the calculations later when account for fadeout is added
---
 src/gui/gui.cpp | 33 +++++++++++++++++++++++++++------
 src/gui/gui.h   |  1 +
 2 files changed, 28 insertions(+), 6 deletions(-)

diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index ead92f80d..4e314959d 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -2582,12 +2582,21 @@ int FurnaceGUI::loadStream(String path) {
 
 
 void FurnaceGUI::exportAudio(String path, DivAudioExportModes mode) {
+  songOrdersLengths.clear();
+
   int loopOrder=0;
   int loopRow=0;
   int loopEnd=0;
   e->walkSong(loopOrder,loopRow,loopEnd);
   e->findSongLength(songHasSongEndCommand, songOrdersLengths, songLength, loopOrder, loopRow, loopEnd); //for progress estimation
 
+  songLoopedSectionLength = songLength;
+  for(int i = 0; i < loopOrder; i++)
+  {
+    songLoopedSectionLength -= songOrdersLengths[i];
+  }
+  songLoopedSectionLength -= loopRow;
+
   e->saveAudio(path.c_str(),audioExportOptions);
   displayExporting=true;
 }
@@ -5839,24 +5848,36 @@ bool FurnaceGUI::loop() {
           int loopsLeft = 0;
           int totalLoops = 0;
 
-          if(!songHasSongEndCommand)
-          {
-            e->getLoopsLeft(loopsLeft);
-            e->getTotalLoops(totalLoops);
-          }
           int curRow = 0;
           int curOrder = 0;
           e->getCurSongPos(curRow, curOrder);
           int curFile = 0;
           e->getCurFileIndex(curFile);
 
+          int lengthOfOneFile = songLength;
+
           int curPosInRows = curRow;
 
           for(int i = 0; i < curOrder; i++)
           {
             curPosInRows += songOrdersLengths[i];
           }
-          int lengthOfOneFile = songLength * (totalLoops + 1);
+
+          if(!songHasSongEndCommand)
+          {
+            e->getLoopsLeft(loopsLeft);
+            e->getTotalLoops(totalLoops);
+
+            lengthOfOneFile += songLoopedSectionLength * totalLoops;
+
+            if(totalLoops != loopsLeft) //we are going 2nd, 3rd, etc. time through the song
+            {
+              curPosInRows -= (songLength - songLoopedSectionLength); //a hack so progress bar does not jump?
+            }
+          }
+
+          //int lengthOfOneFile = songLength * (totalLoops + 1);
+          //songLoopedSectionLength
           int totalLength = lengthOfOneFile * totalFiles;
 
           *progressLambda = (float)(curPosInRows +
diff --git a/src/gui/gui.h b/src/gui/gui.h
index 87f72a815..46ec9f592 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -1725,6 +1725,7 @@ class FurnaceGUI {
 
   std::vector<int> songOrdersLengths; //lengths of all orders (for drawing song export progress)
   int songLength; //length of all the song in rows
+  int songLoopedSectionLength; //length of looped part of the song
   bool songHasSongEndCommand; //song has "Song end" command (FFxx)
 
   struct Settings {