Use BitsShow() for partial screen updates

svn-id: r44944

2 files changed, 7 insertions, 17 deletions

diff --git a/engines/sci/gui/gui.cpp b/engines/sci/gui/gui.cpp
index 424bc591ce..869645c340 100644
--- a/engines/sci/gui/gui.cpp
+++ b/engines/sci/gui/gui.cpp
@@ -283,9 +283,7 @@ void SciGui::drawStatus(const char *text, int16 colorPen, int16 colorBack) {
 	_gfx->Draw_String(text);
 	_gfx->SetPort(oldPort);
 	// _gfx->ShowBits(*_theMenuBar, 1);
-	Common::Rect screenRect = _gfx->_menuRect;
-	_gfx->OffsetRect(screenRect);
-	_screen->copyRectToScreen(screenRect);
+	_gfx->BitsShow(_gfx->_menuRect, SCI_SCREEN_MASK_VISUAL);
 }
 
 void SciGui::drawMenuBar() {
@@ -337,8 +335,7 @@ void SciGui::drawControlButton(Common::Rect rect, reg_t obj, const char *text, i
 
 	Common::Rect screenRect = rect;
 	screenRect.grow(2);
-	_gfx->OffsetRect(screenRect);
-	_screen->copyRectToScreen(screenRect);
+	_gfx->BitsShow(screenRect, SCI_SCREEN_MASK_VISUAL);
 }
 
 void SciGui::drawControlText(Common::Rect rect, reg_t obj, const char *text, int16 fontId, int16 mode, int16 style, bool hilite) {
@@ -356,8 +353,7 @@ void SciGui::drawControlText(Common::Rect rect, reg_t obj, const char *text, int
 
 	Common::Rect screenRect = rect;
 	screenRect.grow(1);
-	_gfx->OffsetRect(screenRect);
-	_screen->copyRectToScreen(screenRect);
+	_gfx->BitsShow(_screenRect, SCI_SCREEN_MASK_VISUAL);
 }
 
 void SciGui::drawControlTextEdit(Common::Rect rect, reg_t obj, const char *text, int16 fontId, int16 mode, int16 style, int16 cursorPos, int16 maxChars, bool hilite) {
@@ -373,9 +369,7 @@ void SciGui::drawControlIcon(Common::Rect rect, reg_t obj, GuiResourceId viewId,
 		_gfx->InvertRect(rect);
 	}
 
-	Common::Rect screenRect = rect;
-	_gfx->OffsetRect(screenRect);
-	_screen->copyRectToScreen(screenRect);
+	_gfx->BitsShow(rect, SCI_SCREEN_MASK_VISUAL);
 }
 
 void SciGui::drawControlList(Common::Rect rect, reg_t obj, int16 maxChars, int16 count, const char **entries, GuiResourceId fontId, int16 style, int16 upperPos, int16 cursorPos, bool isAlias, bool hilite) {
@@ -385,9 +379,7 @@ void SciGui::drawControlList(Common::Rect rect, reg_t obj, int16 maxChars, int16
 		if (isAlias && (style & 8)) {
 			_gfx->FrameRect(rect);
 		}
-		Common::Rect screenRect = rect;
-		_gfx->OffsetRect(screenRect);
-		_screen->copyRectToScreen(screenRect);
+		_gfx->BitsShow(rect, SCI_SCREEN_MASK_VISUAL);
 	}
 }
 
diff --git a/engines/sci/gui/gui_gfx.cpp b/engines/sci/gui/gui_gfx.cpp
index ca5d6ea1e8..e950757e21 100644
--- a/engines/sci/gui/gui_gfx.cpp
+++ b/engines/sci/gui/gui_gfx.cpp
@@ -531,7 +531,7 @@ void SciGuiGfx::ShowText(const char *text, int16 from, int16 len, GuiResourceId
 	rect.left = _curPort->curLeft;
 	DrawText(text, from, len, orgFontId, orgPenColor);
 	rect.right = _curPort->curLeft;
-	BitsShow(rect, 1);
+	BitsShow(rect, SCI_SCREEN_MASK_VISUAL);
 }
 
 // Draws a text in rect.
@@ -587,9 +587,7 @@ void SciGuiGfx::BitsShow(const Common::Rect &r, uint16 screenMask) {
 
 	OffsetRect(rect);
 	assert((screenMask & 0x8000) == 0);
-	_screen->copyToScreen();
-//	_system->copyRectToScreen(GetSegment(flags) + _baseTable[rect.top] + rect.left, 320, rect.left, rect.top, rect.width(), rect.height());
-//	_system->updateScreen();
+	_screen->copyRectToScreen(rect);
 }
 
 GuiMemoryHandle SciGuiGfx::BitsSave(const Common::Rect &rect, byte screenMask) {