Allocate buffer->positions lazily.
2007-10-11 Behdad Esfahbod <behdad@gnome.org>
* pango/opentype/*: Allocate buffer->positions lazily.
diff --git a/src/harfbuzz-buffer.c b/src/harfbuzz-buffer.c
index f597ac9..e39a24b 100644
--- a/src/harfbuzz-buffer.c
+++ b/src/harfbuzz-buffer.c
@@ -51,10 +51,15 @@
while (size > new_allocated)
new_allocated += (new_allocated >> 1) + 8;
- if ( REALLOC_ARRAY( buffer->positions, new_allocated, HB_PositionRec ) )
- return error;
+ if ( buffer->positions )
+ {
+ if ( REALLOC_ARRAY( buffer->positions, new_allocated, HB_PositionRec ) )
+ return error;
+ }
+
if ( REALLOC_ARRAY( buffer->in_string, new_allocated, HB_GlyphItemRec ) )
return error;
+
if ( buffer->inplace )
{
buffer->out_string = buffer->in_string;
@@ -121,6 +126,22 @@
return HB_Err_Ok;
}
+HB_Error
+hb_buffer_clear_positions( HB_Buffer buffer )
+{
+ if ( !buffer->positions )
+ {
+ HB_Error error;
+
+ if ( ALLOC_ARRAY( buffer->positions, buffer->allocated, HB_PositionRec ) )
+ return error;
+ }
+
+ memset (buffer->positions, 0, sizeof (buffer->positions[0]) * buffer->in_length);
+
+ return HB_Err_Ok;
+}
+
void
hb_buffer_clear_output( HB_Buffer buffer )
{
