1 files changed, 88 insertions, 0 deletions
diff --git a/backends/platform/PalmOS/Src/os5_overlay.cpp b/backends/platform/PalmOS/Src/os5_overlay.cpp
new file mode 100644
index 0000000000..93c6123cef
--- /dev/null
+++ b/backends/platform/PalmOS/Src/os5_overlay.cpp
@@ -0,0 +1,88 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2001  Ludvig Strigeus
+ * Copyright (C) 2001-2006 The ScummVM project
+ * 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "be_os5.h"
+#include "common/endian.h"
+
+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;
+
+	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) {
+#ifdef PALMOS_68K
+	color = SWAP_BYTES_16(color);
+#endif
+	r = ((color >> 8) & 0xF8);
+	g = ((color >> 3) & 0xFC);
+	b = ((color << 3) & 0xF8);
+}