ignore .sh files

[xonotic/xonotic-maps.pk3dir.git] / scripts / shader-audit.sh

diff --git a/scripts/shader-audit.sh b/scripts/shader-audit.sh
index d125784a38b2ed4820e186be9de489f451a5dd9e..d11c1a469053f7c5468c0e851d6ab820bb16a0f7 100755 (executable)
--- a/scripts/shader-audit.sh
+++ b/scripts/shader-audit.sh
@@ -25,6 +25,41 @@ normalize()
 allowed_prefixes=
 forbidden_prefixes=
 
+getstats_e()
+{
+       identify -verbose -alpha extract -depth 8 "$1" | {
+               pix=0
+               while read -r L V R; do
+                       case "$L" in
+                               Geometry:)
+                                       V=${V%%[-+]*}
+                                       pix=$(( (${V%%x*} * ${V#*x}) / 2 ))
+                                       ;;
+                               min:)
+                                       min=$V
+                                       ;;
+                               max:)
+                                       max=$V
+                                       ;;
+                               [0-9]*:)
+                                       pix=$(( $pix - ${L%:} ))
+                                       if [ $pix -le 0 ]; then
+                                               median=`echo "$V $R" | cut -d , -f 1 | tr -cd 0-9`
+                                               break
+                                       fi
+                       esac
+               done
+               cat >/dev/null
+               echo "min=$min"
+               echo "max=$max"
+               echo "median=$median"
+       }
+}
+getstats()
+{
+       eval `getstats_e "$1"`
+}
+
 textures_used=
 # $1 = shader
 # $2 = texture
@@ -46,6 +81,40 @@ use_texture()
        fi
        textures_used="$textures_used$LF$2"
 
+       if [ x"$3" = x"map" ]; then
+               lasttex=$2
+               if [ -n "$AUDIT_OFFSETMAPPING" ]; then
+                       if [ -f "../${2}_norm.tga" ]; then
+                               case "$offsetmapping_match8" in
+                                       '') # no dpoffsetmapping keyword
+                                               getstats "../${2}_norm.tga"
+                                               if [ "$min" -eq "$max" ]; then
+                                                       echo "(EE) shader $1 uses broken normalmap ${2}_norm.tga (add dpoffsetmapping none)"; seterror
+                                               else
+                                                       echo "(EE) shader $1 uses ${2}_norm.tga but lacks median (add dpoffsetmapping - 1 match8 $median)"; seterror
+                                               fi
+                                               ;;
+                                       none) # offsetmapping turned off explicitly
+                                               ;;
+                                       default) # offsetmapping keyword without bias
+                                               getstats "../${2}_norm.tga"
+                                               if [ "$min" -eq "$max" ]; then
+                                                       echo "(EE) shader $1 uses broken normalmap ${2}_norm.tga, maybe use dpoffsetmapping none?"; seterror
+                                               else
+                                                       echo "(EE) shader $1 uses ${2}_norm.tga but lacks median (add to dpoffsetmapping: match8 $median)"; seterror
+                                               fi
+                                               ;;
+                                       *) # offsetmapping keyword with bias
+                                               ;;
+                               esac
+                       else
+                               if [ -n "$offsetmapping_match8" ]; then
+                                       echo "(EE) shader $1 specifies offsetmapping, but texture $2 does not have a normalmap"
+                               fi
+                       fi
+               fi
+       fi
+
        if [ -n "$allowed_prefixes" ]; then
                ok=false
                for p in $allowed_prefixes; do
@@ -148,8 +217,8 @@ use_texture()
                                        ;;
                        esac
                        ;;
-               ## RULE: textures/FOO/* must use textures/FOO/*, for FOO in decals, liquids_water, liquids_slime, liquids_lava, warpzone
-               textures/decals/*|textures/liquids_*/*|textures/warpzone/*|textures/effects_*/*)
+               ## RULE: textures/FOO/* must use textures/FOO/*, for FOO in decals, liquids_water, liquids_slime, liquids_lava
+               textures/decals/*|textures/liquids_*/*|textures/effects_*/*|textures/screens/*|textures/logos/*)
                        pre=`echo "$1" | cut -d / -f 1-2`
                        case "$2" in
                                "$pre"/*)
@@ -196,8 +265,8 @@ parsing_shader=
 parse_shaderstage()
 {
        while read L A1 Aother; do
-               case "$L" in
-                       map)
+               case "`echo "$L" | tr A-Z a-z`" in
+                       map|clampmap)
                                case "$A1" in
                                        '$lightmap')
                                                ;;
@@ -211,6 +280,9 @@ parse_shaderstage()
                                        use_texture "$parsing_shader" "`normalize "$X"`" animmap
                                done
                                ;;
+                       '{')
+                               echo "(EE) brace nesting error in $parsing_shader"; seterror
+                               ;;
                        '}')
                                break
                                ;;
@@ -223,8 +295,29 @@ parse_shaderstage()
 parse_shader()
 {
        use_texture "$parsing_shader" "$parsing_shader" shader
+       offsetmapping_match8=
        while read L A1 Aother; do
-               case "$L" in
+               case "`echo "$L" | tr A-Z a-z`" in
+                       dpoffsetmapping)
+                               set -- $Aother
+                               if [ x"$A1" = x"none" ]; then
+                                       offsetmapping_match8=none
+                               elif [ x"$A1" = x"off" ]; then
+                                       offsetmapping_match8=none
+                               elif [ x"$A1" = x"disabled" ]; then
+                                       offsetmapping_match8=none
+                               elif [ x"$2" = x"match8" ]; then
+                                       offsetmapping_match8=`echo "($3 + 0.5) / 1" | bc`
+                               elif [ x"$2" = x"match16" ]; then
+                                       offsetmapping_match8=`echo "($3 / 257 + 0.5) / 1" | bc`
+                               elif [ x"$2" = x"match" ]; then
+                                       offsetmapping_match8=`echo "($3 * 255 + 0.5) / 1" | bc`
+                               elif [ x"$2" = x"bias" ]; then
+                                       offsetmapping_match8=`echo "((1 - $3) * 255 + 0.5) / 1" | bc`
+                               else
+                                       offsetmapping_match8=default
+                               fi
+                               ;;
                        qer_editorimage)
                                use_texture "$parsing_shader" "`normalize "$A1"`" editorimage
                                ;;
@@ -301,7 +394,7 @@ for X in *.shader; do
 done
 rm -f "$t"
 
-textures_avail=`( cd ..; find textures/ -type f -not -name '*_norm.*' -not -name '*_glow.*' -not -name '*_gloss.*' -not -name '*_reflect.*' -not -name '*.xcf' ) | while IFS= read -r T; do normalize "$T"; done | sort -u`
+textures_avail=`( cd ..; find textures/ -type f -not -name '*.sh' -not -name '*_norm.*' -not -name '*_glow.*' -not -name '*_gloss.*' -not -name '*_reflect.*' -not -name '*.xcf' ) | while IFS= read -r T; do normalize "$T"; done | sort -u`
 textures_used=`echo "${textures_used#$LF}" | sort -u`
 
 echo "$textures_used$LF$textures_used$LF$textures_avail" | sort | uniq -u | while IFS= read -r L; do