TSAGE: Implemented dirty rect handling in the engine

This should help improve performance when scalers are being used.

4 files changed, 8 insertions, 8 deletions

diff --git a/engines/tsage/ringworld/ringworld_dialogs.cpp b/engines/tsage/ringworld/ringworld_dialogs.cpp
index 37101c9c58..d0d5ab7b4a 100644
--- a/engines/tsage/ringworld/ringworld_dialogs.cpp
+++ b/engines/tsage/ringworld/ringworld_dialogs.cpp
@@ -183,7 +183,7 @@ void RightClickDialog::execute() {
 		}
 
 		g_system->delayMillis(10);
-		g_system->updateScreen();
+		GLOBALS._screenSurface.copyToScreen();
 	}
 
 	// Execute the specified action
@@ -394,7 +394,7 @@ void InventoryDialog::execute() {
 		Event event;
 		while (!g_globals->_events.getEvent(event) && !g_vm->shouldQuit()) {
 			g_system->delayMillis(10);
-			g_system->updateScreen();
+			GLOBALS._screenSurface.copyToScreen();
 		}
 		if (g_vm->shouldQuit())
 			break;
diff --git a/engines/tsage/ringworld/ringworld_logic.cpp b/engines/tsage/ringworld/ringworld_logic.cpp
index c87b95e0b8..2497327a01 100644
--- a/engines/tsage/ringworld/ringworld_logic.cpp
+++ b/engines/tsage/ringworld/ringworld_logic.cpp
@@ -315,7 +315,7 @@ void SceneArea::wait() {
 	// Wait until a mouse or keypress
 	Event event;
 	while (!g_vm->shouldQuit() && !g_globals->_events.getEvent(event)) {
-		g_system->updateScreen();
+		GLOBALS._screenSurface.copyToScreen();
 		g_system->delayMillis(10);
 	}
 
diff --git a/engines/tsage/ringworld/ringworld_scenes3.cpp b/engines/tsage/ringworld/ringworld_scenes3.cpp
index 81190aea7b..6f3d1ed93a 100644
--- a/engines/tsage/ringworld/ringworld_scenes3.cpp
+++ b/engines/tsage/ringworld/ringworld_scenes3.cpp
@@ -532,7 +532,7 @@ void Scene2100::Action1::signal() {
 			// Wait for an event
 			Event event;
 			if (!g_globals->_events.getEvent(event)) {
-				g_system->updateScreen();
+				GLOBALS._screenSurface.copyToScreen();
 				g_system->delayMillis(10);
 				continue;
 			}
@@ -2263,7 +2263,7 @@ void Scene2150::Action1::signal() {
 			// Wait for an event
 			Event event;
 			if (!g_globals->_events.getEvent(event)) {
-				g_system->updateScreen();
+				GLOBALS._screenSurface.copyToScreen();
 				g_system->delayMillis(10);
 				continue;
 			}
@@ -5118,7 +5118,7 @@ void Scene2320::Action3::signal() {
 			// Wait for an event
 			Event event;
 			if (!g_globals->_events.getEvent(event)) {
-				g_system->updateScreen();
+				GLOBALS._screenSurface.copyToScreen();
 				g_system->delayMillis(10);
 				continue;
 			}
diff --git a/engines/tsage/ringworld/ringworld_scenes5.cpp b/engines/tsage/ringworld/ringworld_scenes5.cpp
index 49726eba2e..7c8da54fac 100644
--- a/engines/tsage/ringworld/ringworld_scenes5.cpp
+++ b/engines/tsage/ringworld/ringworld_scenes5.cpp
@@ -2810,7 +2810,7 @@ void Scene4150::Action1::signal() {
 	case 4: {
 		for (int idx = 100; idx >= 0; idx -= 5) {
 			g_globals->_scenePalette.fade(adjustData, false, idx);
-			g_system->updateScreen();
+			GLOBALS._screenSurface.copyToScreen();
 			g_system->delayMillis(10);
 		}
 
@@ -2838,7 +2838,7 @@ void Scene4150::Action1::signal() {
 	case 7:
 		for (int idx = 100; idx >= 0; idx -= 5) {
 			g_globals->_scenePalette.fade(adjustData, false, idx);
-			g_system->updateScreen();
+			GLOBALS._screenSurface.copyToScreen();
 			g_system->delayMillis(10);
 		}