From 8f20ab88c90feefc7b88d4b27b02800c2d9f4e20 Mon Sep 17 00:00:00 2001
From: Jesse Luehrs <doy@tozt.net>
Date: Fri, 6 May 2016 05:35:02 -0400
Subject: make the redraw rate limit configurable

---
 src/config.c      | 5 +++++
 src/config.h      | 2 ++
 src/window-xlib.c | 9 +++++++--
 3 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/config.c b/src/config.c
index 3f9da3b..ca9abc6 100644
--- a/src/config.c
+++ b/src/config.c
@@ -44,6 +44,8 @@ static void runes_config_set_defaults(RunesTerm *t)
     config->audible_bell   = 1;
     config->bell_is_urgent = 1;
 
+    config->redraw_rate = 5;
+
     config->cursorcolor      = cairo_pattern_create_rgb(0.0, 1.0, 0.0);
     config->mousecursorcolor = cairo_pattern_create_rgb(1.0, 1.0, 1.0);
 
@@ -497,6 +499,9 @@ static void runes_config_set(RunesTerm *t, char *key, char *val)
     else if (!strcmp(key, "scrollback_length")) {
         config->scrollback_length = runes_config_parse_uint(val);
     }
+    else if (!strcmp(key, "redraw_rate")) {
+        config->redraw_rate = runes_config_parse_uint(val);
+    }
     else if (!strcmp(key, "command")) {
         config->cmd = runes_config_parse_string(val);
     }
diff --git a/src/config.h b/src/config.h
index b718f8b..1da07a2 100644
--- a/src/config.h
+++ b/src/config.h
@@ -17,6 +17,8 @@ struct runes_config {
     int scroll_lines;
     int scrollback_length;
 
+    int redraw_rate;
+
     char *cmd;
     char *font_name;
 
diff --git a/src/window-xlib.c b/src/window-xlib.c
index 64abafc..3182e31 100644
--- a/src/window-xlib.c
+++ b/src/window-xlib.c
@@ -518,9 +518,14 @@ static int runes_window_backend_check_recent(RunesTerm *t)
 {
     RunesWindowBackend *w = &t->w;
     struct timespec now;
+    int rate = t->config.redraw_rate;
+
+    if (rate == 0) {
+        return 0;
+    }
 
     clock_gettime(CLOCK_REALTIME, &now);
-    now.tv_nsec -= 10000000;
+    now.tv_nsec -= rate * 1000000;
     if (now.tv_nsec < 0) {
         now.tv_sec -= 1;
         now.tv_nsec += 1000000000;
@@ -528,7 +533,7 @@ static int runes_window_backend_check_recent(RunesTerm *t)
     if (now.tv_sec < w->last_redraw.tv_sec || (now.tv_sec == w->last_redraw.tv_sec && now.tv_nsec < w->last_redraw.tv_nsec)) {
         if (!w->delaying) {
             runes_loop_timer_set(
-                t->loop, 10, 0, t, runes_window_backend_delay_cb);
+                t->loop, rate, 0, t, runes_window_backend_delay_cb);
             w->delaying = 1;
         }
         return 1;
-- 
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