From 835ee48b40ddb185b6b3583eee1a2917c01df1b9 Mon Sep 17 00:00:00 2001
From: Rudolf Polzer <divverent@alientrap.org>
Date: Mon, 21 Jun 2010 09:45:07 +0200
Subject: [PATCH 1/1] JPEG and DDS generator scripts (untested)

---
 misc/tools/generate-dds.sh                    | 30 +++++++++++++++++++
 ...{jpeg-if-not-alpha.sh => generate-jpeg.sh} | 10 +++++--
 2 files changed, 37 insertions(+), 3 deletions(-)
 create mode 100755 misc/tools/generate-dds.sh
 rename misc/tools/{jpeg-if-not-alpha.sh => generate-jpeg.sh} (61%)

diff --git a/misc/tools/generate-dds.sh b/misc/tools/generate-dds.sh
new file mode 100755
index 00000000..7e407b09
--- /dev/null
+++ b/misc/tools/generate-dds.sh
@@ -0,0 +1,30 @@
+#!/bin/sh
+
+set -e
+
+for X in "$@"; do
+	case "$X" in
+		*.jpg)
+			if [ -n "$scaledown" ]; then
+				mogrify -geometry "$scaledown" -quality 100 "$X"
+			fi
+			echo "$X has no alpha, converting"
+			nvcompress -bc1 "$X" "${X%.*}.dds"
+			rm -f "$X"
+			;;
+		*.png|*.tga)
+			if [ -n "$scaledown" ]; then
+				mogrify -geometry "$scaledown" -quality 100 "$X"
+			fi
+			if convert "$X" -depth 16 RGBA:- | perl -e 'while(read STDIN, $_, 8) { substr($_, 6, 2) eq "\xFF\xFF" or exit 1; ++$pix; } exit not $pix;'; then
+				echo "$X has no alpha, converting"
+				nvcompress -bc1 "$X" "${X%.*}.dds"
+				rm -f "$X"
+			else
+				echo "$X has alpha, converting"
+				nvcompress -alpha -bc3 "$X" "${X%.*}.dds"
+				rm -f "$X"
+			fi
+			;;
+	esac
+done
diff --git a/misc/tools/jpeg-if-not-alpha.sh b/misc/tools/generate-jpeg.sh
similarity index 61%
rename from misc/tools/jpeg-if-not-alpha.sh
rename to misc/tools/generate-jpeg.sh
index f6e4597c..f9ba64a9 100755
--- a/misc/tools/jpeg-if-not-alpha.sh
+++ b/misc/tools/generate-jpeg.sh
@@ -8,13 +8,13 @@ for X in "$@"; do
 	case "$X" in
 		*.jpg)
 			if [ -n "$scaledown" ]; then
-				mogrify -geometry "$scaledown>" -quality 100 "$X"
+				mogrify -geometry "$scaledown" -quality 100 "$X"
 			fi
 			jpegoptim --strip-all -m$qual "$X"
 			;;
 		*.png|*.tga)
 			if [ -n "$scaledown" ]; then
-				mogrify -geometry "$scaledown>" -quality 100 "$X"
+				mogrify -geometry "$scaledown" -quality 100 "$X"
 			fi
 			if convert "$X" -depth 16 RGBA:- | perl -e 'while(read STDIN, $_, 8) { substr($_, 6, 2) eq "\xFF\xFF" or exit 1; ++$pix; } exit not $pix;'; then
 				echo "$X has no alpha, converting"
@@ -22,7 +22,11 @@ for X in "$@"; do
 				jpegoptim --strip-all -m$qual "${X%.*}.jpg"
 				rm -f "$X"
 			else
-				echo "$X has alpha, not converting"
+				echo "$X has alpha, converting twice"
+				convert "$X" -alpha extract -quality 100 "${X%.*}.jpg"
+				convert "$X" -alpha off     -quality 100 "${X%.*}_alpha.jpg"
+				jpegoptim --strip-all -m$qual "${X%.*}_alpha.jpg"
+				rm -f "$X"
 			fi
 			;;
 	esac
-- 
2.39.2