From 7872433c172dd5ab0df832f2d86f7913ec84b300 Mon Sep 17 00:00:00 2001
From: n-a-c-h <>
Date: Mon, 21 Mar 2005 10:51:44 +0000
Subject: [PATCH] Fixed thumbnails during movies.

---
 zsnes/src/cfgload.c         |  5 ++++-
 zsnes/src/video/procvid.asm | 13 +++++++++++++
 zsnes/src/zmovie.c          | 11 +++++++++++
 3 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/zsnes/src/cfgload.c b/zsnes/src/cfgload.c
index 28284215..d1b5dceb 100644
--- a/zsnes/src/cfgload.c
+++ b/zsnes/src/cfgload.c
@@ -1507,4 +1507,7 @@ void SRAMDirCurDir()
   getcwd(SRAMDir,1024);
 }
 
-
+void UpChdir()
+{
+  chdir("..");
+}
diff --git a/zsnes/src/video/procvid.asm b/zsnes/src/video/procvid.asm
index fe2b51c1..c573ade4 100644
--- a/zsnes/src/video/procvid.asm
+++ b/zsnes/src/video/procvid.asm
@@ -68,6 +68,7 @@ EXTSYM vidbufferofsb
 EXTSYM HalfTransB,HalfTransC
 
 EXTSYM cur_zst_size,old_zst_size
+EXTSYM MovieProcessing,mzt_chdir,UpChdir
 
 %ifdef __MSDOS__
 EXTSYM SB_blank
@@ -1291,6 +1292,12 @@ GetPicture:
     jne .notskip
     ret
 .notskip
+    cmp byte[MovieProcessing],0
+    jz .nomovie
+    pushad
+    call mzt_chdir
+    popad
+.nomovie
     mov [PrevPictureVal],cl
     mov edx,PrevPicture
     mov ecx,64*56*2
@@ -1385,6 +1392,12 @@ GetPicture:
     add esi,288*2
     dec edx
     jnz .ploopa2
+    cmp byte[MovieProcessing],0
+    jz .nomovie2
+    pushad
+    call UpChdir
+    popad
+.nomovie2    
     ret
 
 NEWSYM drawfillboxsc
diff --git a/zsnes/src/zmovie.c b/zsnes/src/zmovie.c
index bd52bea4..7ba614bb 100644
--- a/zsnes/src/zmovie.c
+++ b/zsnes/src/zmovie.c
@@ -897,6 +897,17 @@ Save and load MZT
 
 */
 
+void mzt_chdir()
+{
+  size_t filename_len = strlen(zmv_vars.filename);
+  memcpy(zmv_vars.filename+filename_len-3, "mz", 2);
+  if (!isdigit(zmv_vars.filename[filename_len-1]))
+  {
+    zmv_vars.filename[filename_len-1] = 't';
+  }
+  chdir(zmv_vars.filename);
+}
+
 bool mzt_save(char *statename, bool thumb)
 {
   size_t filename_len = strlen(zmv_vars.filename);