refactor: update reader to use new launcher

Makefile

@@ -14,7 +14,8 @@ export PATH:=$(CURDIR)/$(KOR_BASE)/toolchain/android-toolchain/bin:$(PATH)
 MACHINE?=$(shell PATH=$(PATH) $(CC) -dumpmachine 2>/dev/null)
 INSTALL_DIR=koreader-$(MACHINE)
 
-ANDROID_LAUNCHER_DIR:=android/luajit-launcher
+ANDROID_DIR=android
+ANDROID_LAUNCHER_DIR:=$(ANDROID_DIR)/luajit-launcher
 
 # files to link from main directory
 INSTALL_FILES=reader.lua frontend resources defaults.lua l10n \
@@ -47,6 +48,10 @@ endif
 	for f in $(INSTALL_FILES); do \
 		ln -sf ../../$$f $(INSTALL_DIR)/koreader/; \
 	done
+ifdef ANDROID
+	cd $(INSTALL_DIR)/koreader && \
+		ln -sf ../../$(ANDROID_DIR)/*.lua .
+endif
 	# install plugins
 	cp -r plugins/* $(INSTALL_DIR)/koreader/plugins/
 	cp -rpL resources/fonts/* $(INSTALL_DIR)/koreader/fonts/

android/llapp_main.lua

@@ -0,0 +1,4 @@
+local A = require("android")
+
+ARGV = {"-d", "/sdcard"}
+dofile(A.dir.."/reader.lua")

reader.lua

@@ -1,5 +1,12 @@
 #!./koreader-base
 
+require "libs/libkoreader-lfs"
+einkfb = require("ffi/framebuffer")
+input = require("ffi/input")
+freetype = require("ffi/freetype")
+Image = require("ffi/mupdfimg")
+util = require("ffi/util")
+
 require "defaults"
 package.path = "?.lua;common/?.lua;frontend/?.lua"
 package.cpath = "?.so;common/?.so;/usr/lib/lua/?.so"