From 6980d1d1465c11f3afaf2e0c29503990ad3fb906 Mon Sep 17 00:00:00 2001
From: ennewalker <ennewalker@c06c8d41-db1a-0410-9941-cceddc491573>
Date: Mon, 8 Dec 2008 03:22:46 +0000
Subject: Tiles performance improvements. redraw() is not needlessly done three
 times as often as it should.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@7776 c06c8d41-db1a-0410-9941-cceddc491573
---
 crawl-ref/source/delay.cc   |  5 +++++
 crawl-ref/source/libgui.cc  |  2 +-
 crawl-ref/source/tilesdl.cc | 14 ++++++++++++++
 crawl-ref/source/tilesdl.h  |  2 ++
 4 files changed, 22 insertions(+), 1 deletion(-)

(limited to 'crawl-ref')

diff --git a/crawl-ref/source/delay.cc b/crawl-ref/source/delay.cc
index bc9c19376b..b12f293868 100644
--- a/crawl-ref/source/delay.cc
+++ b/crawl-ref/source/delay.cc
@@ -1517,6 +1517,11 @@ static command_type _get_running_command()
     if (is_resting())
     {
         you.running.rest();
+
+#ifdef USE_TILE
+        tiles.redraw();
+#endif
+
         if (!is_resting() && you.running.hp == you.hp
             && you.running.mp == you.magic_points)
         {
diff --git a/crawl-ref/source/libgui.cc b/crawl-ref/source/libgui.cc
index 87839a9c78..e934d5ee64 100644
--- a/crawl-ref/source/libgui.cc
+++ b/crawl-ref/source/libgui.cc
@@ -343,7 +343,7 @@ void delay(int ms)
 
 void update_screen()
 {
-    tiles.redraw();
+    tiles.set_need_redraw();
 }
 
 int kbhit()
diff --git a/crawl-ref/source/tilesdl.cc b/crawl-ref/source/tilesdl.cc
index ccc34e7813..1cc27c12a2 100644
--- a/crawl-ref/source/tilesdl.cc
+++ b/crawl-ref/source/tilesdl.cc
@@ -79,6 +79,7 @@ TilesFramework::TilesFramework() :
     m_viewsc(0, 0),
     m_context(NULL),
     m_fullscreen(false),
+    m_need_redraw(false),
     m_active_layer(LAYER_CRT),
     m_buttons_held(0),
     m_key_mod(0),
@@ -591,6 +592,12 @@ int TilesFramework::getch_ck()
     unsigned int res = std::max(30, Options.tile_tooltip_ms);
     SDL_SetTimer(res, &_timer_callback);
 
+    if (m_need_redraw)
+    {
+        redraw();
+        last_redraw_tick = SDL_GetTicks();
+    }
+
     while (!key)
     {
         unsigned int ticks = 0;
@@ -944,6 +951,8 @@ void TilesFramework::cgotoxy(int x, int y, int region)
 
 void TilesFramework::redraw()
 {
+    m_need_redraw = false;
+
     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
     glMatrixMode(GL_MODELVIEW);
@@ -1274,3 +1283,8 @@ void TilesFramework::clear_overlays()
 {
     m_region_tile->clear_overlays();
 }
+
+void TilesFramework::set_need_redraw()
+{
+    m_need_redraw = true;
+}
diff --git a/crawl-ref/source/tilesdl.h b/crawl-ref/source/tilesdl.h
index 735189c95b..258ea5b3a3 100644
--- a/crawl-ref/source/tilesdl.h
+++ b/crawl-ref/source/tilesdl.h
@@ -106,6 +106,7 @@ public:
     void clear_minimap();
     void update_inventory();
 
+    void set_need_redraw();
     void redraw();
 
     void place_cursor(cursor_type type, const coord_def &gc);
@@ -134,6 +135,7 @@ protected:
 
     SDL_Surface* m_context;
     bool m_fullscreen;
+    bool m_need_redraw;
 
     enum LayerID
     {
-- 
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