scripts/shader-audit.sh

   1 #!/bin/sh
   2
   3 LF="
   4 "
   5
   6 normalize()
   7 {
   8         echo "$1" | sed 's/\.\(tga\|jpg\|png\)$//'
   9 }
  10
  11 textures_used=
  12 # $1 = shader
  13 # $2 = texture
  14 # $3 = self | map | animmap | editorimage
  15 use_texture()
  16 {
  17         # does texture exist?
  18         if [ "$3" != "self" ]; then
  19                 if \
  20                         [ -f "../$2.tga" ] || \
  21                         [ -f "../$2.jpg" ] || \
  22                         [ -f "../$2.png" ]; then
  23                         :
  24                 else
  25                         echo "(EE) shader $1 uses non-existing texture $2"
  26                 fi
  27         fi
  28         textures_used="$textures_used$LF$2"
  29
  30         # TODO verify shader -> texture name
  31 }
  32
  33 parsing_shader=
  34 parse_shaderstage()
  35 {
  36         while read L A1 A2 Aother; do
  37                 case "$L" in
  38                         map)
  39                                 case "$A1" in
  40                                         '$lightmap')
  41                                                 ;;
  42                                         *)
  43                                                 use_texture "$parsing_shader" "`normalize "$A1"`" map
  44                                                 ;;
  45                                 esac
  46                                 ;;
  47                         animmap)
  48                                 for X in $A2 $Aother; do
  49                                         use_texture "$parsing_shader" "`normalize "$X"`" animmap
  50                                 done
  51                                 ;;
  52                         '}')
  53                                 break
  54                                 ;;
  55                         *)
  56                                 ;;
  57                 esac
  58         done
  59 }
  60
  61 parse_shader()
  62 {
  63         use_texture "$parsing_shader" "$parsing_shader" self
  64         while read L A1; do
  65                 case "$L" in
  66                         qer_editorimage\ *)
  67                                 use_texture "$parsing_shader" "$A1" editorimage
  68                                 ;;
  69                         '{')
  70                                 parse_shaderstage
  71                                 ;;
  72                         '}')
  73                                 break
  74                                 ;;
  75                         *)
  76                                 ;;
  77                 esac
  78         done
  79 }
  80
  81 parse_shaderfile()
  82 {
  83         while read L; do
  84                 case "$L" in
  85                         textures/*)
  86                                 parsing_shader="`normalize "$L"`"
  87                                 if [ x"$L" != x"$parsing_shader" ]; then
  88                                         echo "(WW) normalized shader name $L to $parsing_shader"
  89                                 fi
  90                                 ;;
  91                         '{')
  92                                 parse_shader
  93                                 ;;
  94                         *)
  95                                 ;;
  96                 esac
  97         done
  98 }
  99
 100 strip_comments()
 101 {
 102         sed 's,//.*,,g; s,\r, ,g; s,\t, ,g; s,  *, ,g; s, $,,; s,^ ,,; /^$/ d'
 103 }
 104
 105 t=`mktemp`
 106 for X in *.shader; do
 107         strip_comments < "$X" > "$t"
 108         parse_shaderfile < "$t"
 109 done
 110 rm -f "$t"
 111
 112 textures_avail=`( cd ..; find textures/ -type f -not -name '*_norm.*' -not -name '*_glow.*' -not -name '*_gloss.*' ) | while IFS= read -r T; do normalize "$T"; done | sort -u`
 113 textures_used=`echo "${textures_used#$LF}" | sort -u`
 114
 115 echo "$textures_used$LF$textures_used$LF$textures_avail" | sort | uniq -u | while IFS= read -r L; do
 116         echo "(EE) texture $L is not referenced by any shader"
 117 done