#!/bin/bash
set -e

set -x
CURRENT_ROOT_PATH=`dirname "$PWD"`
OHOS_SDK_PATH=$CURRENT_ROOT_PATH/ohos-sdk

prefix_path=$CURRENT_ROOT_PATH/ffmpeg/out
OUTPUT=$CURRENT_ROOT_PATH/ffmpeg/out

LLVM=$OHOS_SDK_PATH/llvm
SYSROOT=$OHOS_SDK_PATH/sysroot
NINJA_PATH=$OHOS_SDK_PATH/ninja

CPU=aarch64
CC=$LLVM/bin/$CPU-linux-ohos-clang
CXX=$LLVM/bin/$CPU-linux-ohos-clang++
STRIP=$LLVM/bin/llvm-strip
LD=$LLVM/bin/$CPU-linux-ohos-clang
OPTIMIZE_CFLAGS="-march=$CPU"
HOST_CC=$LLVM/bin/$CPU-linux-ohos-clang
HOST_LD=$LLVM/bin/$CPU-linux-ohos-clang
HOST_LD_FLAG=-L$SYSROOT/usr/lib/$CPU-linux-ohos



if [ -d _build ];then
    rm -r _build
fi
mkdir _build
if [ -d _bin ];then
    rm -r _bin
fi
mkdir _bin


#创建交叉编译配置文件cross_file.txt
 
#还可设置c_args等等类似 CFLAGS
echo "[constants]" > cross_file.txt
echo "arch = '${LLVM}'" >> cross_file.txt
 
echo "[binaries]" >> cross_file.txt
echo "c = '${CC}'" >> cross_file.txt
echo "cpp = '${CXX}'" >> cross_file.txt
#echo "ar = '${CC}'" >> cross_file.txt
echo "ld = '${LD}'" >> cross_file.txt
echo "srtip = '${STRIP}'" >> cross_file.txt
echo "sys_root = '${SYSROOT}'" >> cross_file.txt
#echo "pkg_config_libdir = '${sys_root}/usr/lib/pkgconfig'" >> cross_file.txt
 
#编译结果可运行平台的架构
echo "[host_machine]" >> cross_file.txt
echo "system = 'linux'" >> cross_file.txt
echo "cpu_family = 'aarch64'" >> cross_file.txt
echo "cpu = 'aarch64'" >> cross_file.txt
echo "endian = 'little'" >> cross_file.txt
 
#类似于configure功能 meson configure 获取到可配置项
echo "[project options]" >> cross_file.txt
#编译libkms，选项可以参考meson.build及meson_option.txt
echo "libkms = 'true'" >> cross_file.txt
#安装测试程序（kmstest/modetest等）到_bin/bin/目录下
echo "install-test-programs = 'true'" >> cross_file.txt
 
 
#类似于执行configure
meson setup _build --prefix=${prefix_path} --cross-file cross_file.txt
 
cd _build
chmod 777 ${NINJA_PATH}/*
#编译 类似于make
${NINJA_PATH}/ninja
#类似于make install, *.h  *.a *.so install to prefix dir
${NINJA_PATH}/ninja install
cd ../