X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/21d2b241875c072a8700e838ae0da677a7b9d428..acddebd9b0442b7a8ac97bfe7989d8be485edcf5:/terminal.h

diff --git a/terminal.h b/terminal.h
index daadd708..28f06c0c 100644
--- a/terminal.h
+++ b/terminal.h
@@ -20,6 +20,15 @@ typedef struct {
     int y, x;
 } pos;
 
+#ifdef OPTIMISE_SCROLL
+struct scrollregion {
+    struct scrollregion *next;
+    int topline; /* Top line of scroll region. */
+    int botline; /* Bottom line of scroll region. */
+    int lines; /* Number of lines to scroll by - +ve is forwards. */
+};
+#endif /* OPTIMISE_SCROLL */
+
 struct terminal_tag {
 
     int compatibility_level;
@@ -47,6 +56,10 @@ struct terminal_tag {
     term->cpos = lineptr(term->curs.y) + term->curs.x; \
 } while(0)
 
+#ifdef OPTIMISE_SCROLL
+    struct scrollregion *scrollhead, *scrolltail;
+#endif /* OPTIMISE_SCROLL */
+
     unsigned long curr_attr, save_attr;
     unsigned long erase_char;