add SDL2 sources

thirdparty/SDL2-src/android-project/app/jni/src/Android.mk

@@ -0,0 +1,18 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := main
+
+SDL_PATH := ../SDL
+
+LOCAL_C_INCLUDES := $(LOCAL_PATH)/$(SDL_PATH)/include
+
+# Add your application source files here...
+LOCAL_SRC_FILES := YourSourceHere.c
+
+LOCAL_SHARED_LIBRARIES := SDL2
+
+LOCAL_LDLIBS := -lGLESv1_CM -lGLESv2 -llog
+
+include $(BUILD_SHARED_LIBRARY)

thirdparty/SDL2-src/android-project/app/jni/src/CMakeLists.txt

@@ -0,0 +1,13 @@
+cmake_minimum_required(VERSION 3.6)
+
+project(MY_APP)
+
+find_library(SDL2 SDL2)
+
+add_library(main SHARED)
+
+target_sources(main PRIVATE YourSourceHere.c)
+
+target_link_libraries(main SDL2)
+
+