1 files changed, 57 insertions, 8 deletions
diff --git a/backends/PalmOS/Src/os5_overlay.cpp b/backends/PalmOS/Src/os5_overlay.cpp
index 5ca43be60c..1c5c29f4f6 100755
--- a/backends/PalmOS/Src/os5_overlay.cpp
+++ b/backends/PalmOS/Src/os5_overlay.cpp
@@ -1,7 +1,7 @@
 /* ScummVM - Scumm Interpreter
  * Copyright (C) 2001  Ludvig Strigeus
  * Copyright (C) 2001-2006 The ScummVM project
- * Copyright (C) 2002-2005 Chris Apers - PalmOS Backend
+ * Copyright (C) 2002-2006 Chris Apers - PalmOS Backend
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -23,15 +23,64 @@
 
 #include "be_os5.h"
 
-OverlayColor OSystem_PalmOS5::RGBToColor(uint8 r, uint8 g, uint8 b) {
-	RGBColorType rgb = {0, r, g, b};
-	OverlayColor color = WinRGBToIndex(&rgb);
+void OSystem_PalmOS5::showOverlay() {
+	// hide fight indicator
+	draw_osd(kDrawFight, _screenDest.w - 34, _screenDest.h + 2, false);
+
+	undraw_mouse();
+	_overlayVisible = true;
+	clearOverlay();	
+}
+
+void OSystem_PalmOS5::hideOverlay() {
+	undraw_mouse();
+	_overlayVisible = false;
+	_redawOSD = true;
+}
+
+void OSystem_PalmOS5::clearOverlay() {
+	if (!_overlayVisible)
+		return;
+
+	byte *src = _offScreenP;
+	int16 *dst =  _overlayP;
+	int cnt = _screenWidth * _screenHeight;
+	do {
+		*dst++ = _nativePal[*src++];
+	} while (--cnt);
+}
+
+void OSystem_PalmOS5::grabOverlay(OverlayColor *buf, int pitch) {
+	OverlayColor *src = _overlayP;
+	int h = _screenHeight;
+	do {
+		memcpy(buf, src, _screenWidth * 2);
+		src += _screenWidth;
+		buf += pitch;
+	} while (--h);
+}
+
+void OSystem_PalmOS5::copyRectToOverlay(const OverlayColor *buf, int pitch, int x, int y, int w, int h) {
+	if (w == 0 || h == 0)
+		return;
 
-	return color;
+	OverlayColor *dst = _overlayP + x + y * _screenWidth;
+	do {
+		memcpy(dst, buf, w * 2);
+		dst += _screenWidth;
+		buf += pitch;
+	} while (--h);
+}
+
+OverlayColor OSystem_PalmOS5::RGBToColor(uint8 r, uint8 g, uint8 b) {
+	return gfxMakeDisplayRGB(r, g, b);
 }
 
 void OSystem_PalmOS5::colorToRGB(OverlayColor color, uint8 &r, uint8 &g, uint8 &b) {
-	r = _currentPalette[color].r;
-	g = _currentPalette[color].g;
-	b = _currentPalette[color].b;
+#ifdef PALMOS_68K
+	color = SWAP_BYTES_16(color);
+#endif
+	r = ((color >> 8) & 0xF8);
+	g = ((color >> 3) & 0xFC);
+	b = ((color << 3) & 0xF8);
 }