SCI/newgui: implemented debug command show_map

svn-id: r44735

4 files changed, 33 insertions, 1 deletions

diff --git a/engines/sci/gui/gui.cpp b/engines/sci/gui/gui.cpp
index 25c61ae7fb..f04956cb48 100644
--- a/engines/sci/gui/gui.cpp
+++ b/engines/sci/gui/gui.cpp
@@ -497,4 +497,9 @@ void SciGui::moveCursor(Common::Point pos) {
 	// FIXME!
 }
 
+bool SciGui::debugShowMap(int mapNo) {
+	_screen->debugShowMap(mapNo);
+	return false;
+}
+
 } // End of namespace Sci
diff --git a/engines/sci/gui/gui.h b/engines/sci/gui/gui.h
index fafc6a8a10..ba3f1fd9f4 100644
--- a/engines/sci/gui/gui.h
+++ b/engines/sci/gui/gui.h
@@ -90,6 +90,8 @@ public:
 	virtual void setCursorPos(Common::Point pos);
 	virtual void moveCursor(Common::Point pos);
 
+	virtual bool debugShowMap(int mapNo);
+
 private:
 	EngineState *_s;
 	SciGuiScreen *_screen;
diff --git a/engines/sci/gui/gui_screen.cpp b/engines/sci/gui/gui_screen.cpp
index 1079b4c3f9..6f1b278739 100644
--- a/engines/sci/gui/gui_screen.cpp
+++ b/engines/sci/gui/gui_screen.cpp
@@ -51,6 +51,9 @@ SciGuiScreen::SciGuiScreen(int16 width, int16 height, int16 scaleFactor) :
 	_controlScreen = initScreen(_pixels);
 	_displayScreen = initScreen(_displayPixels);
 
+	// Sets display screen to be actually displayed
+	_activeScreen = _displayScreen;
+
 	for (i = 0; i < _height; i++) {
 		_baseTable[i] = base; _baseDisplayTable[i] = base;
 		base += _width;
@@ -73,7 +76,7 @@ byte *SciGuiScreen::initScreen(uint16 pixelCount) {
 }
 
 void SciGuiScreen::copyToScreen() {
-	g_system->copyRectToScreen(_displayScreen, _displayWidth, 0, 0, _displayWidth, _displayHeight);
+	g_system->copyRectToScreen(_activeScreen, _displayWidth, 0, 0, _displayWidth, _displayHeight);
 }
 
 byte SciGuiScreen::getDrawingMask(byte color, byte prio, byte control) {
@@ -237,4 +240,21 @@ void SciGuiScreen::dither() {
 	}
 }
 
+void SciGuiScreen::debugShowMap(int mapNo) {
+	switch (mapNo) {
+	case 0:
+		_activeScreen = _visualScreen;
+		break;
+	case 1:
+		_activeScreen = _priorityScreen;
+		break;
+	case 2:
+		_activeScreen = _controlScreen;
+		break;
+	case 3:
+		_activeScreen = _displayScreen;
+		break;
+	}
+}
+
 } // End of namespace Sci
diff --git a/engines/sci/gui/gui_screen.h b/engines/sci/gui/gui_screen.h
index c3f2be95b8..0ce0f0f13c 100644
--- a/engines/sci/gui/gui_screen.h
+++ b/engines/sci/gui/gui_screen.h
@@ -63,6 +63,8 @@ public:
 
 	void dither();
 
+	void debugShowMap(int mapNo);
+
 	uint16 _width;
 	uint16 _height;
 	uint _pixels;
@@ -89,6 +91,9 @@ public:	// HACK. TODO: make private
 	// this screen is the one that is actually displayed to the user. It may be 640x480 for japanese SCI1 games
 	//  SCI0 games may be undithered in here. Only read from this buffer for Save/ShowBits usage.
 	byte *_displayScreen;
+
+	// this is a pointer to the currently active screen (changing it only required for debug purposes)
+	byte *_activeScreen;
 };
 
 } // End of namespace Sci