use png as the source image

3 files changed, 4 insertions, 4 deletions

diff --git a/Makefile b/Makefile
index 6a8c1d5..2c2cf39 100644
--- a/Makefile
+++ b/Makefile
@@ -9,7 +9,7 @@ default: gen_mipmaps.c fix_mali_ktx.c gen_ktx.c
 	gcc -g gen_ktx.c -o gen_ktx -lktx
 
 ktxes:
-	./make_ktxes.sh waffles.jpg
+	./make_ktxes.sh waffles.png
 
 test:
 	ninja -C ~/repos/piglit2
diff --git a/make_ktxes.sh b/make_ktxes.sh
index a0942fd..14d8913 100755
--- a/make_ktxes.sh
+++ b/make_ktxes.sh
@@ -129,7 +129,7 @@ img_h=`identify -format "%[fx:h]" $1`
 for lod in $(seq 0 $MAX_LEVEL); do
 
 	# Resize the image for current level of detail (LOD).
-	convert ${inFileHead}.jpg"[${img_w}x${img_h}!]" ${inFileHead}-${lod}.jpg
+	convert -define png:preserve-colormap=true ${inFileHead}.png"[${img_w}x${img_h}!]" ${inFileHead}-${lod}.png
 
 	# Stop generating miplevels when reaching dimensions 1x1.
 	echo "LOD-$lod dimensions are: ${img_w}x${img_h}"
@@ -189,7 +189,7 @@ for i in ${Fmt[@]}; do
 		for lod in $(seq 0 $MAX_LEVEL); do
 
 			# Choose the right base file
-			inFile=${inFileHead}-${lod}.jpg
+			inFile=${inFileHead}-${lod}.png
 
 			# Setup output files
 			outFile=${outFileHead}-$lod
@@ -250,5 +250,5 @@ done
 
 # Delete each level of detail
 for lod in $(seq 0 $MAX_LEVEL); do
-	rm ${inFileHead}-${lod}.jpg
+	rm ${inFileHead}-${lod}.png
 done
diff --git a/waffles.png b/waffles.png
new file mode 100644
index 0000000..e9cdbce
--- /dev/null
+++ b/waffles.png