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+#!/bin/bash
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+
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+# This script validates shaders (if successfully compiled) using spirv-val.
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+# It is not meant to preclude the possible addition of the validator to
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+# glslang.
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+
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+declare -r EXE='../build/install/bin/glslangValidator'
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+
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+# search common locations for spirv-tools: keep first one
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+for toolsdir in '../External/spirv-tools/build/tools' '../../SPIRV-Tools/build/tools' '/usr/local/bin'; do
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+ [[ -z "$VAL" && -x "${toolsdir}/spirv-val" ]] && declare -r VAL="${toolsdir}/spirv-val"
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+ [[ -z "$DIS" && -x "${toolsdir}/spirv-dis" ]] && declare -r DIS="${toolsdir}/spirv-dis"
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+done
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+
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+declare -r gtests='../gtests/Hlsl.FromFile.cpp ../gtests/Spv.FromFile.cpp'
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+
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+declare -r targetenv='vulkan1.0'
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+
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+function fatal() { echo "ERROR: $@"; exit 5; }
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+
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+function usage
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+{
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+ echo
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+ echo "Usage: $(basename $0) [options...] shaders..."
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+ echo
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+ echo " Validates shaders (if successfully compiled) through spirv-val."
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+ echo
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+ echo "General options:"
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+ echo " --help prints this text"
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+ echo " --no-color disables output colorization"
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+ echo " --dump-asm dumps all successfully compiled shader assemblies"
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+ echo " --dump-val dumps all validation results"
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+ echo " --dump-comp dumps all compilation logs"
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+ echo "Spam reduction options:"
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+ echo " --no-summary disables result summaries"
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+ echo " --skip-ok do not print successful validations"
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+ echo " --skip-comperr do not print compilation errors"
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+ echo " --skip-valerr do not print validation errors"
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+ echo " --quiet synonym for --skip-ok --skip-comperr --skip-valerr --no-summary"
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+ echo " --terse print terse single line progress summary"
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+ echo "Disassembly options:"
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+ echo " --raw-id uses raw ids for disassembly"
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+ echo
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+ echo "Usage examples. Note most non-hlsl tests fail to compile for expected reasons."
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+ echo " Exercise all hlsl.* files:"
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+ echo " $(basename $0) hlsl.*"
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+ echo " Exercise all hlsl.* files, tersely:"
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+ echo " $(basename $0) --terse hlsl.*"
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+ echo " Print validator output for myfile.frag:"
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+ echo " $(basename $0) --quiet --dump-val myfile.frag"
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+ echo " Exercise hlsl.* files, only printing validation errors:"
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+ echo " $(basename $0) --skip-ok --skip-comperr hlsl.*"
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+
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+ exit 5
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+}
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+
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+function status()
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+{
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+ printf "%-40s: %b\n" "$1" "$2"
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+}
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+
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+# make sure we can find glslang
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+[[ -x "$EXE" ]] || fatal "Unable to locate $(basename "$EXE") executable"
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+[[ -x "$VAL" ]] || fatal "Unable to locate spirv-val executable"
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+[[ -x "$DIS" ]] || fatal "Unable to locate spirv-dis executable"
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+
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+for gtest in $gtests; do
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+ [[ -r "$gtest" ]] || fatal "Unable to locate source file: $(basename $gtest)"
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+done
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+
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+# temp files
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+declare -r spvfile='out.spv' \
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+ complog='comp.out' \
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+ vallog='val.out' \
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+ dislog='dis.out' \
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+
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+# options
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+declare opt_vallog=false \
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+ opt_complog=false \
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+ opt_dislog=false \
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+ opt_summary=true \
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+ opt_stat_comperr=true \
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+ opt_stat_ok=true \
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+ opt_stat_valerr=true \
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+ opt_color=true \
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+ opt_raw_id=false \
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+ opt_quiet=false \
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+ opt_terse=false
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+
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+# clean up on exit
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+trap "rm -f ${spvfile} ${complog} ${vallog} ${dislog}" EXIT
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+
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+# Language guesser: there is no fixed mapping from filenames to language,
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+# so this examines the file and return one of:
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+# hlsl
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+# glsl
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+# bin
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+# unknown
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+# This is easier WRT future expansion than a big explicit list.
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+function FindLanguage()
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+{
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+ local test="$1"
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+
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+ # If it starts with hlsl, assume it's hlsl.
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+ if [[ "$test" == *hlsl.* ]]; then
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+ echo hlsl
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+ return
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+ fi
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+
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+ if [[ "$test" == *.spv ]]; then
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+ echo bin
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+ return;
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+ fi
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+
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+ # If it doesn't start with spv., assume it's GLSL.
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+ if [[ ! "$test" == spv.* && ! "$test" == remap.* ]]; then
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+ echo glsl
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+ return
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+ fi
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+
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+ # Otherwise, attempt to guess from shader contents, since there's no
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+ # fixed mapping of filenames to languages.
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+ local contents="$(cat "$test")"
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+
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+ if [[ "$contents" == *#version* ]]; then
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+ echo glsl
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+ return
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+ fi
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+
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+ if [[ "$contents" == *SamplerState* ||
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+ "$contents" == *cbuffer* ||
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+ "$contents" == *SV_* ]]; then
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+ echo hlsl
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+ return
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+ fi
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+
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+ echo unknown
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+}
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+
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+# Attempt to discover entry point
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+function FindEntryPoint()
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+{
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+ local test="$1"
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+
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+ # if it's not hlsl, always use main
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+ if [[ "$language" != 'hlsl' ]]; then
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+ echo 'main'
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+ return
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+ fi
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+
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+ # Try to find it in test sources
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+ awk -F '[ (){",]+' -e "\$2 == \"${test}\" { print \$3; found=1; } END { if (found==0) print \"main\"; } " $gtests
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+}
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+
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+# command line options
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+while [ $# -gt 0 ]
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+do
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+ case "$1" in
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+ # -c) glslang="$2"; shift 2;;
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+ --help|-?) usage;;
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+ --no-color) opt_color=false; shift;;
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+ --no-summary) opt_summary=false; shift;;
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+ --skip-ok) opt_stat_ok=false; shift;;
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+ --skip-comperr) opt_stat_comperr=false; shift;;
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+ --skip-valerr) opt_stat_valerr=false; shift;;
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+ --dump-asm) opt_dislog=true; shift;;
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+ --dump-val) opt_vallog=true; shift;;
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+ --dump-comp) opt_complog=true; shift;;
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+ --raw-id) opt_raw_id=true; shift;;
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+ --quiet) opt_quiet=true; shift;;
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+ --terse) opt_quiet=true
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+ opt_terse=true
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+ shift;;
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+ --*) fatal "Unknown command line option: $1";;
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+ *) break;;
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+ esac
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+done
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+
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+# this is what quiet means
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+if $opt_quiet; then
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+ opt_stat_ok=false
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+ opt_stat_comperr=false
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+ opt_stat_valerr=false
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+ $opt_terse || opt_summary=false
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+fi
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+
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+if $opt_color; then
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+ declare -r white="\e[1;37m" cyan="\e[1;36m" red="\e[0;31m" no_color="\e[0m"
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+else
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+ declare -r white="" cyan="" red="" no_color=""
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+fi
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+
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+# stats
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+declare -i count_ok=0 count_err=0 count_nocomp=0 count_total=0
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+
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+declare -r dashsep='------------------------------------------------------------------------'
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+
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+testfiles=(${@})
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+# if no shaders given, look for everything in current directory
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+[[ ${#testfiles[*]} == 0 ]] && testfiles=(*.frag *.vert *.tesc *.tese *.geom *.comp)
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+
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+$opt_summary && printf "\nValidating: ${#testfiles[*]} shaders\n\n"
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+
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+# Loop through the shaders we were given, compiling them if we can.
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+for test in ${testfiles[*]}
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+do
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+ if [[ ! -r "$test" ]]; then
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+ $opt_quiet || status "$test" "${red}FILE NOT FOUND${no_color}"
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+ continue
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+ fi
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+
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+ ((++count_total))
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+
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+ $opt_terse && printf "\r[%-3d/%-3d : ${white}comperr=%-3d ${red}valerr=%-3d ${cyan}ok=%-3d${no_color}]" \
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+ ${count_total} ${#testfiles[*]} ${count_nocomp} ${count_err} ${count_ok}
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+
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+ language="$(FindLanguage $test)"
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+ entry="$(FindEntryPoint $test)"
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+ langops=''
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+
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+ case "$language" in
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+ hlsl) langops='-D --hlsl-iomap --hlsl-offsets';;
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+ glsl) ;;
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+ bin) continue;; # skip binaries
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+ *) $opt_quiet || status "$test" "${red}UNKNOWN LANGUAGE${no_color}"; continue;;
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+ esac
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+
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+ # compile the test file
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+ if compout=$("$EXE" -e "$entry" $langops -V -o "$spvfile" "$test" 2>&1)
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+ then
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+ # successful compilation: validate
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+ if valout=$("$VAL" --target-env ${targetenv} "$spvfile" 2>&1)
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+ then
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+ # validated OK
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+ $opt_stat_ok && status "$test" "${cyan}OK${no_color}"
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+ ((++count_ok))
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+ else
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+ # validation failure
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+ $opt_stat_valerr && status "$test" "${red}VAL ERROR${no_color}"
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+ printf "%s\n%s:\n%s\n" "$dashsep" "$test" "$valout" >> "$vallog"
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+ ((++count_err))
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+ fi
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+
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+ if $opt_dislog; then
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+ printf "%s\n%s:\n" "$dashsep" "$test" >> "$dislog"
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+ $opt_raw_id && id_opt=--raw-id
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+ "$DIS" ${id_opt} "$spvfile" >> "$dislog"
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+ fi
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+ else
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+ # compile failure
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+ $opt_stat_comperr && status "$test" "${white}COMP ERROR${no_color}"
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+ printf "%s\n%s\n" "$dashsep" "$compout" >> "$complog"
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+ ((++count_nocomp))
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+ fi
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+done
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+
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+$opt_terse && echo
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+
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+# summarize
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+$opt_summary && printf "\nSummary: ${white}${count_nocomp} compile errors${no_color}, ${red}${count_err} validation errors${no_color}, ${cyan}${count_ok} successes${no_color}\n"
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+
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+# dump logs
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+$opt_vallog && [[ -r $vallog ]] && cat "$vallog"
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+$opt_complog && [[ -r $complog ]] && cat "$complog"
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+$opt_dislog && [[ -r $dislog ]] && cat "$dislog"
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+
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+# exit code
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+[[ ${count_err} -gt 0 ]] && exit 1
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+exit 0
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Branimir Karadžić