1 files changed, 127 insertions, 0 deletions
diff --git a/src/gfxstream/codegen/vulkan/vulkan-docs-next/scripts/compImages.sh b/src/gfxstream/codegen/vulkan/vulkan-docs-next/scripts/compImages.sh
new file mode 100755
index 00000000000..24d65ce0d41
--- /dev/null
+++ b/src/gfxstream/codegen/vulkan/vulkan-docs-next/scripts/compImages.sh
@@ -0,0 +1,127 @@
+#!/bin/bash
+#
+# Copyright 2020-2023 The Khronos Group Inc.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+# compareImages - compare all asciidoctor images in two branches
+# Usage: compareImages branch1 branch2
+
+# Where to put temporary files
+compare=compare
+
+branch1=$1
+branch2=$2
+
+echo "Preparing test tree under compare/"
+rm -rf $compare
+
+echo "Gathering images under compare/$1 compare/$2"
+if git checkout $branch1 ; then
+    img1=$compare/$branch1
+    files1=$compare/$branch1-files
+    mkdir -p $img1
+    cp images/*.svg $img1
+    (cd $img1 ; ls) > $files1
+else
+    echo "Cannot switch to branch $branch1"
+    rm -rf $compare
+    exit 1
+fi
+
+if git checkout $branch2 ; then
+    img2=$compare/$branch2
+    files2=$compare/$branch2-files
+    mkdir -p $img2
+    cp images/*.svg $img2
+    (cd $img2 ; ls) > $files2
+else
+    echo "Cannot switch to branch $branch2"
+    rm -rf $compare
+    exit 1
+fi
+
+srcfile=compare/compImages.adoc
+
+# Boilerplate header
+echo "= Image Comparison of Vulkan images in $branch1 $branch2
+:data-uri:
+:icons: font
+include::../config/attribs.adoc[]
+" > $srcfile
+
+
+# Files common to both branches
+echo "== Images Common to Both Branches
+" >> $srcfile
+
+# Identical images
+identical=()
+
+# Where to generate comparison images
+compdir=$compare/compare
+mkdir -p $compdir
+
+for file in `comm -12 $files1 $files2` ; do
+    echo "Comparing $file"
+    if diff -q $img1/$file $img2/$file > /dev/null ; then
+        identical+=( $file )
+        # Files are identical
+    else
+        # sum1=`sum $img1/$file | awk '{print $1}'`
+        # sum2=`sum $img2/$file | awk '{print $1}'`
+        #
+        # if test $sum1 -eq $sum2 ; then
+
+        # Generate comparison image
+        compfile="$compdir/$file"
+        compare $img1/$file $img2/$file $compfile
+
+        echo "=== $file
+
+image::$branch1/$file[title=\"$file in $branch1\",align=\"center\",opts=\"inline\"]
+
+image::$branch2/$file[title=\"$file in $branch2\",align=\"center\",opts=\"inline\"]
+
+image::compare/$file[title=\"Comparison of branches\",align=\"center\",opts=\"inline\"]
+
+<<<
+
+" >> $srcfile
+
+    fi
+done
+
+
+# Identical files
+echo "== Identical images
+" >> $srcfile
+
+for file in ${identical[@]} ; do
+    echo "  * $file" >> $srcfile
+done
+echo >> $srcfile
+
+
+# Files only in first branch
+echo "== Images only in $branch1
+" >> $srcfile
+
+for file in `comm -23 $files1 $files2` ; do
+    echo "  * $file" >> $srcfile
+done
+echo >> $srcfile
+
+
+# Files only in second branch
+echo "== Images only in $branch2
+" >> $srcfile
+
+for file in `comm -13 $files1 $files2` ; do
+    echo "  * $file" >> $srcfile
+done
+echo >> $srcfile
+
+outfile=$compare/`basename $srcfile .adoc`.pdf
+echo "Generating $outfile from $srcfile"
+asciidoctor -b pdf -r asciidoctor-pdf -o $outfile $srcfile