92 lines
3.5 KiB
Bash
92 lines
3.5 KiB
Bash
TERMUX_PKG_HOMEPAGE=https://source.android.com/devices/graphics/arch-vulkan
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TERMUX_PKG_DESCRIPTION="Vulkan Loader for Android"
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TERMUX_PKG_LICENSE="NCSA"
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TERMUX_PKG_MAINTAINER="@termux"
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TERMUX_PKG_VERSION=25c
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TERMUX_PKG_SRCURL=https://dl.google.com/android/repository/android-ndk-r${TERMUX_PKG_VERSION}-linux.zip
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TERMUX_PKG_SHA256=769ee342ea75f80619d985c2da990c48b3d8eaf45f48783a2d48870d04b46108
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TERMUX_PKG_HOSTBUILD=true
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TERMUX_PKG_BUILD_IN_SRC=true
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# Desktop Vulkan Loader
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# https://github.com/KhronosGroup/Vulkan-Loader
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# https://github.com/KhronosGroup/Vulkan-Loader/blob/master/loader/LoaderAndLayerInterface.md
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# Android Vulkan Loader
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# https://source.android.com/devices/graphics/arch-vulkan
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# https://android.googlesource.com/platform/frameworks/native/+/master/vulkan
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# Vulkan functions exported by Android Vulkan Loader depending on API version
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# https://android.googlesource.com/platform/frameworks/native/+/master/vulkan/libvulkan/libvulkan.map.txt
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# For now this package provides the NDK stub libvulkan.so (Termux current minimum API verison)
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# If system libvulkan.so is available, the stub will be replaced with symlink to system libvulkan.so
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termux_step_host_build() {
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# it doesnt make sense to set vulkan.pc version to:
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# 1. vulkan-loader package version and bump this package every time the former updates
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# 2. NDK version since the stubs are the same between NDK releases AFAIK and isnt related to vulkan
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# so we use NDK provided vulkan header version but https://github.com/android/ndk/issues/1721
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# NDK shows that there is 2 different versions of vulkan headers
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cat <<- EOF > vulkan_header_version.c
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#include <stdio.h>
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#include "vulkan/vulkan_core.h"
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int main(void) {
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printf("%d.%d.%d\n",
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VK_HEADER_VERSION_COMPLETE >> 22,
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VK_HEADER_VERSION_COMPLETE >> 12 & 0x03ff,
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VK_HEADER_VERSION_COMPLETE & 0x0fff);
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return 0;
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}
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EOF
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rm -fr ./vulkan
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cp -fr "$TERMUX_PKG_SRCDIR/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/vulkan" ./vulkan
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cc vulkan_header_version.c -o vulkan_header_version
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}
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termux_step_post_make_install() {
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install -v -Dm644 \
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"toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/lib/$TERMUX_HOST_PLATFORM/$TERMUX_PKG_API_LEVEL/libvulkan.so" \
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"$TERMUX_PREFIX/lib/libvulkan.so"
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local vulkan_loader_version
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vulkan_loader_version="$($TERMUX_PKG_HOSTBUILD_DIR/vulkan_header_version)"
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if [ -z "$vulkan_loader_version" ]; then
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termux_error_exit "ERROR: Host built vulkan_header_version is not printing version!"
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fi
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# based on https://github.com/KhronosGroup/Vulkan-Loader/blob/master/loader/vulkan.pc.in
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# not using "Libs.private"
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cat <<- EOF > "$TERMUX_PKG_TMPDIR/vulkan.pc"
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prefix=$TERMUX_PREFIX
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exec_prefix=\${prefix}
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libdir=\${exec_prefix}/lib
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includedir=\${prefix}/include
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Name: Vulkan-Loader
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Description: Vulkan Loader
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Version: $vulkan_loader_version
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Libs: -L\${libdir} -lvulkan
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Cflags: -I\${includedir}
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EOF
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install -Dm644 "$TERMUX_PKG_TMPDIR/vulkan.pc" "$TERMUX_PREFIX/lib/pkgconfig/vulkan.pc"
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echo "INFO: Printing vulkan.pc..."
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cat "$TERMUX_PREFIX/lib/pkgconfig/vulkan.pc"
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}
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termux_step_create_debscripts() {
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if [ "$TERMUX_ARCH_BITS" = 64 ]; then _BITS=64; else _BITS=""; fi
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cat <<- EOF > postinst
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#!$TERMUX_PREFIX/bin/sh
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if [ -e /system/lib${_BITS}/libvulkan.so ]; then
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echo "Symlink /system/lib${_BITS}/libvulkan.so to $TERMUX_PREFIX/lib/libvulkan.so ..."
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ln -fsT "/system/lib${_BITS}/libvulkan.so" "$TERMUX_PREFIX/lib/libvulkan.so"
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fi
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EOF
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cat <<- EOF > postrm
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#!$TERMUX_PREFIX/bin/sh
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rm -f "$TERMUX_PREFIX/lib/libvulkan.so"
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EOF
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unset _BITS
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}
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