From 88f0bb1dca75834add77541399d5bf13bacd1163 Mon Sep 17 00:00:00 2001
From: Qingping Hou <dave2008713@gmail.com>
Date: Thu, 10 Jan 2013 11:29:13 +0800
Subject: [PATCH] add getPitch method to einkfb.c

---
 einkfb.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/einkfb.c b/einkfb.c
index 599033548..01a012b06 100644
--- a/einkfb.c
+++ b/einkfb.c
@@ -279,6 +279,16 @@ static int getSize(lua_State *L) {
 	return 2;
 }
 
+static int getPitch(lua_State *L) {
+	FBInfo *fb = (FBInfo*) luaL_checkudata(L, 1, "einkfb");
+#ifndef EMULATE_READER
+	lua_pushinteger(L, fb->finfo.line_length);
+#else
+	lua_pushinteger(L, fb->buf->pitch);
+#endif
+	return 1;
+}
+
 static int closeFrameBuffer(lua_State *L) {
 	FBInfo *fb = (FBInfo*) luaL_checkudata(L, 1, "einkfb");
 	// should be save if called twice
@@ -432,6 +442,7 @@ static const struct luaL_Reg einkfb_meth[] = {
 	{"getOrientation", einkGetOrientation},
 	{"setOrientation", einkSetOrientation},
 	{"getSize", getSize},
+	{"getPitch", getPitch},
 	{NULL, NULL}
 };