linuxmint18上cocos2dx protobuf2.6.1编译、使用方法

2019-07-12 20:26发布

在linuxmint18上用ndk编译android版本的protobuf


1,在github上下载protobuf-2.6.1.tar.gz,解压


2,cd; mkdir -p protobuf/jni
拷贝protobuf-2.6.1目录下的src文件夹到jni目录下


在jni目录下新建Android.mk文件,内容如下:
LOCAL_PATH := $(call my-dir)


include $(CLEAR_VARS)


LOCAL_MODULE := protobuf


LOCAL_MODULE_FILENAME := libprotobuf


LOCAL_SRC_FILES := src/google/protobuf/io/coded_stream.cc
src/google/protobuf/stubs/common.cc
src/google/protobuf/descriptor.cc
src/google/protobuf/descriptor.pb.cc
src/google/protobuf/descriptor_database.cc
src/google/protobuf/dynamic_message.cc
src/google/protobuf/extension_set.cc
src/google/protobuf/extension_set_heavy.cc
src/google/protobuf/generated_message_reflection.cc
src/google/protobuf/generated_message_util.cc
src/google/protobuf/io/gzip_stream.cc
src/google/protobuf/compiler/importer.cc
src/google/protobuf/message.cc
src/google/protobuf/message_lite.cc
src/google/protobuf/stubs/once.cc
src/google/protobuf/compiler/parser.cc
src/google/protobuf/io/printer.cc
src/google/protobuf/reflection_ops.cc
src/google/protobuf/repeated_field.cc
src/google/protobuf/service.cc
src/google/protobuf/stubs/structurally_valid.cc
src/google/protobuf/stubs/strutil.cc
src/google/protobuf/stubs/substitute.cc
src/google/protobuf/text_format.cc
src/google/protobuf/io/tokenizer.cc
src/google/protobuf/unknown_field_set.cc
src/google/protobuf/wire_format.cc
src/google/protobuf/wire_format_lite.cc
src/google/protobuf/io/zero_copy_stream.cc
src/google/protobuf/io/zero_copy_stream_impl.cc
src/google/protobuf/io/zero_copy_stream_impl_lite.cc
src/google/protobuf/stubs/stringprintf.cc
  
LOCAL_EXPORT_C_INCLUDES :=  
LOCAL_EXPORT_LDLIBS :=  
  
LOCAL_C_INCLUDES := $(LOCAL_PATH)
$(LOCAL_PATH)/src


LOCAL_LDLIBS := -llog -lz


include $(BUILD_STATIC_LIBRARY)


继续在jni目录下新建Application.mk,内容如下:
APP_STL := gnustl_static  
APP_CPPFLAGS := -frtti 
APP_ABI := armeabi armeabi-v7a x86
APP_MODULES := protobuf


3,cd protobuf-2.6.1; ./configure; 
拷贝生成的config.h文件到jni目录下


4,cd; cd protobuf; ndk-build
即可发现在子目录obj/local目录中生成了armeabi armeabi-v7a x86三个平台下的libprotobuf.a


5,cd protobuf-2.6.1; make; make install


6,在你的cocosdx项目根目录下新建一个proto目录
拷贝第5步生成的protobuf的include文件夹到proto目录下
拷贝第4步的obj/local目录下的三个子文件夹(删除其中的objs文件夹)到proto/libs目录下


7,在proto目录下新建Android.mk文件,内容如下:
LOCAL_PATH := $(call my-dir)


include $(CLEAR_VARS)
LOCAL_MODULE := cocos_protobuf_static
LOCAL_MODULE_FILENAME := libprotobuf
LOCAL_SRC_FILES := libs/$(TARGET_ARCH_ABI)/libprotobuf.a
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
include $(PREBUILT_STATIC_LIBRARY)


至此android上的protobuf库就准备好了。


8,使用protobuf
在自己工程的Android.mk文件中添加以下代码:
$(call import-add-path,$(LOCAL_PATH)/../..)


...


LOCAL_STATIC_LIBRARIES += cocos_protobuf_static


...


$(call import-module,proto)


其中
$(LOCAL_PATH)/../..这个路径就是proto目录的父目录
cocos_protobuf_static就是第7步中的LOCAL_MODULE
proto就是proto目录名


9,ps:github上也有一个protobuf2.6.1 ndk build的参考:https://github.com/julienr/protobuf-android