From 804a17f5e596fdd4aa6ec662bdbb930f2be4f933 Mon Sep 17 00:00:00 2001
From: Hugo Villeneuve <hugo@hugovil.com>
Date: Thu, 5 Oct 2023 10:18:57 -0400
Subject: [PATCH] No intermediate conversions

---
 fgen.sh | 23 +++++++++--------------
 1 file changed, 9 insertions(+), 14 deletions(-)

diff --git a/fgen.sh b/fgen.sh
index b3b1d26..019e662 100755
--- a/fgen.sh
+++ b/fgen.sh
@@ -157,10 +157,8 @@ log_dbg "CANVAS SIZE=${size}"
 
 rm -f ${dest}/frame*.png
 
-# Extract global frame:
-convert ${IM_OPS} ${src}[1] ${dest}/psd0.png
-
-cp ${dest}/psd0.png ${dest}/temp.png
+# Create background frame:
+convert -size ${size} xc:none ${dest}/background.png
 
 # Remove first line (Layer 558):
 ${SED} -i -e '1d' ${layers}
@@ -168,6 +166,8 @@ ${SED} -i -e '1d' ${layers}
 # Will start at frame 2 at first loop iteration
 f=1
 
+files=""
+
 while read l; do
     f=$((${f} + 1))
 
@@ -184,22 +184,17 @@ while read l; do
         continue
     fi
 
-    convert ${IM_OPS} ${src}[${f}] ${dest}/psd${f}.png
-
-    composite ${IM_OPS} -geometry ${p} ${dest}/psd${f}.png ${dest}/temp.png ${dest}/temp.png
+    files="${files} -page ${p} ${src}[${f}]"
 
-if [ x"${nf}" != x"" ]; then
+    if [ x"${nf}" != x"" ]; then
         log_dbg "New frame ID: ${nf}"
-        cp ${dest}/temp.png ${dest}/f${nf}.png
-        cp ${dest}/psd0.png ${dest}/temp.png
+        convert -page +0+0 ${dest}/background.png ${files} -background none -layers merge ${dest}/f${nf}.png
+        files=""
     fi
+
 done <${layers}
 
 if which ffmpeg 1> /dev/null 2>&1; then
     # Conversion vidéo:
     ffmpeg -y -r ${fps} -start_number 1 -i ${dest}/f%d.png ${dest}/sequence.mp4
 fi
-
-rm -f ${dest}/temp.png
-
-#rm -f ${dest}/psd*.png
-- 
2.20.1