From 39f3fa7d5b890941ca7fb2beea92e43a5ad2a951 Mon Sep 17 00:00:00 2001
From: Ralph Sennhauser <ralph.sennhauser@gmail.com>
Date: Mon, 16 Sep 2024 20:07:58 +0200
Subject: [PATCH] Package spirv-reflect for building shaders

Usually not available in Linux Distributions as it isn't customary to
package the SDK but only the bits needed as separate packages.

Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
---
 .gitignore                              |  1 +
 libraries/build-source-libs.sh          |  5 ++++
 libraries/source/spirv-reflect/build.sh | 35 +++++++++++++++++++++++++
 3 files changed, 41 insertions(+)
 create mode 100755 libraries/source/spirv-reflect/build.sh

diff --git a/.gitignore b/.gitignore
index 5494d4fe16..acd1146d6f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,6 +20,7 @@ libraries/source/cxxtest-4.4/*
 libraries/source/fcollada/*
 libraries/source/nvtt/*
 libraries/source/spidermonkey/*
+libraries/source/spirv-reflect/*
 !libraries/source/**/build.sh
 !libraries/source/**/patches/
 
diff --git a/libraries/build-source-libs.sh b/libraries/build-source-libs.sh
index b37d76f3d1..d735563b36 100755
--- a/libraries/build-source-libs.sh
+++ b/libraries/build-source-libs.sh
@@ -24,6 +24,7 @@ esac
 without_nvtt=false
 with_system_nvtt=false
 with_system_mozjs=false
+with_spirv_reflect=false
 
 JOBS=${JOBS:="-j2"}
 
@@ -32,6 +33,7 @@ for i in "$@"; do
 		--without-nvtt) without_nvtt=true ;;
 		--with-system-nvtt) with_system_nvtt=true ;;
 		--with-system-mozjs) with_system_mozjs=true ;;
+		--with-spirv-reflect) with_spirv_reflect=true ;;
 		-j*) JOBS=$i ;;
 	esac
 done
@@ -67,5 +69,8 @@ if [ "$with_system_mozjs" = "false" ]; then
 	cp source/spidermonkey/bin/* ../binaries/system/
 fi
 echo
+if [ "$with_spirv_reflect" = "true" ]; then
+	./source/spirv-reflect/build.sh || die "spirv-reflect build failed"
+fi
 
 echo "Done."
diff --git a/libraries/source/spirv-reflect/build.sh b/libraries/source/spirv-reflect/build.sh
new file mode 100755
index 0000000000..916b4ee032
--- /dev/null
+++ b/libraries/source/spirv-reflect/build.sh
@@ -0,0 +1,35 @@
+#!/bin/sh
+set -e
+
+cd "$(dirname "$0")"
+
+PV=1.3.290.0
+LIB_VERSION=${PV}
+
+if [ -e .already-built ] && [ "$(cat .already-built || true)" = "${LIB_VERSION}" ]; then
+	echo "spirv-reflect is already up to date."
+	exit
+fi
+
+# fetch
+if [ ! -e "vulkan-sdk-${PV}.tar.gz" ]; then
+	curl -fLo "vulkan-sdk-${PV}.tar.gz" \
+		"https://github.com/KhronosGroup/SPIRV-Reflect/archive/refs/tags/vulkan-sdk-${PV}.tar.gz"
+fi
+
+# unpack
+rm -Rf "SPIRV-Reflect-vulkan-sdk-${PV}"
+tar xf "vulkan-sdk-${PV}.tar.gz"
+
+# configure
+cmake -B build -S "SPIRV-Reflect-vulkan-sdk-${PV}" \
+	-DCMAKE_INSTALL_PREFIX="$(realpath . || true)"
+
+# build
+cmake --build build
+
+# install
+rm -Rf bin
+cmake --install build
+
+echo "${LIB_VERSION}" >.already-built