From e62df43649e31b7815c272f01808b3f726c7d07d Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Wed, 3 Aug 2011 17:38:54 -0400
Subject: [PATCH] Add internal hb_buffer_t::get_scratch_buffer()

---
 src/hb-buffer-private.hh |  2 ++
 src/hb-buffer.cc         | 10 ++++++++++
 2 files changed, 12 insertions(+)

diff --git a/src/hb-buffer-private.hh b/src/hb-buffer-private.hh
index 8f2095a1..a4d7b8f5 100644
--- a/src/hb-buffer-private.hh
+++ b/src/hb-buffer-private.hh
@@ -135,6 +135,8 @@ struct _hb_buffer_t {
   { return likely (size <= allocated) ? TRUE : enlarge (size); }
 
   HB_INTERNAL bool make_room_for (unsigned int num_in, unsigned int num_out);
+
+  HB_INTERNAL void *get_scratch_buffer (unsigned int *size);
 };
 
 
diff --git a/src/hb-buffer.cc b/src/hb-buffer.cc
index ea05307a..968e673d 100644
--- a/src/hb-buffer.cc
+++ b/src/hb-buffer.cc
@@ -135,6 +135,16 @@ hb_buffer_t::make_room_for (unsigned int num_in,
   return TRUE;
 }
 
+void *
+hb_buffer_t::get_scratch_buffer (unsigned int *size)
+{
+  have_output = FALSE;
+  have_positions = FALSE;
+  out_len = 0;
+  *size = allocated * sizeof (pos[0]);
+  return pos;
+}
+
 
 /* HarfBuzz-Internal API */
 
-- 
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