8 files changed, 6 insertions, 31 deletions
diff --git a/backends/platform/PalmOS/Src/base_gfx.cpp b/backends/platform/PalmOS/Src/base_gfx.cpp
index c96a258d52..cb40bb55e5 100644
--- a/backends/platform/PalmOS/Src/base_gfx.cpp
+++ b/backends/platform/PalmOS/Src/base_gfx.cpp
@@ -152,7 +152,7 @@ void OSystem_PalmBase::updateScreen() {
 
 void OSystem_PalmBase::clearScreen() {
 	WinSetDrawWindow(WinGetDisplayWindow());
-	WinSetBackColor(RGBToColor(0,0,0));
+	WinSetBackColor(Graphics::RGBToColor<ColorMasks<565> >(0,0,0));
 	WinEraseWindow();
 }
 
diff --git a/backends/platform/PalmOS/Src/be_base.h b/backends/platform/PalmOS/Src/be_base.h
index 03a9d56fb4..009c5a9997 100644
--- a/backends/platform/PalmOS/Src/be_base.h
+++ b/backends/platform/PalmOS/Src/be_base.h
@@ -230,8 +230,7 @@ public:
 
 	void setPalette(const byte *colors, uint start, uint num);
 	void grabPalette(byte *colors, uint start, uint num);
-	virtual OverlayColor RGBToColor(uint8 r, uint8 g, uint8 b) = 0;
-	virtual void colorToRGB(OverlayColor color, uint8 &r, uint8 &g, uint8 &b) = 0;
+	virtual Graphics::PixelFormat getOverlayFormat() const { return Graphics::createPixelFormat<565>(); }
 
 	bool pollEvent(Common::Event &event);
 
diff --git a/backends/platform/PalmOS/Src/be_os5.h b/backends/platform/PalmOS/Src/be_os5.h
index 99d1dd9dc1..c56688b98f 100644
--- a/backends/platform/PalmOS/Src/be_os5.h
+++ b/backends/platform/PalmOS/Src/be_os5.h
@@ -181,8 +181,6 @@ public:
 	virtual void clearOverlay();
 	virtual void grabOverlay(OverlayColor *buf, int pitch);
 	virtual void copyRectToOverlay(const OverlayColor *buf, int pitch, int x, int y, int w, int h);
-	virtual OverlayColor RGBToColor(uint8 r, uint8 g, uint8 b);
-	virtual void colorToRGB(OverlayColor color, uint8 &r, uint8 &g, uint8 &b);
 
 	void setWindowCaption(const char *caption);
 
diff --git a/backends/platform/PalmOS/Src/be_zodiac.h b/backends/platform/PalmOS/Src/be_zodiac.h
index 58e2ca88ac..28fcf29ddd 100644
--- a/backends/platform/PalmOS/Src/be_zodiac.h
+++ b/backends/platform/PalmOS/Src/be_zodiac.h
@@ -71,8 +71,6 @@ public:
 	void clearOverlay();
 	void grabOverlay(OverlayColor *buf, int pitch);
 	void copyRectToOverlay(const OverlayColor *buf, int pitch, int x, int y, int w, int h);
-	OverlayColor RGBToColor(uint8 r, uint8 g, uint8 b);
-	void colorToRGB(OverlayColor color, uint8 &r, uint8 &g, uint8 &b);
 };
 
 #endif
diff --git a/backends/platform/PalmOS/Src/os5_gfx.cpp b/backends/platform/PalmOS/Src/os5_gfx.cpp
index 2d26419dff..c02e1f7db4 100644
--- a/backends/platform/PalmOS/Src/os5_gfx.cpp
+++ b/backends/platform/PalmOS/Src/os5_gfx.cpp
@@ -77,8 +77,8 @@ void OSystem_PalmOS5::load_gfx_mode() {
 		__68K(PINSetInputTriggerState(pinInputTriggerDisabled));
 	}
 
-	gVars->indicator.on = RGBToColor(0,255,0);
-	gVars->indicator.off = RGBToColor(0,0,0);
+	gVars->indicator.on = Graphics::RGBToColor<ColorMasks<565> >(0,255,0);
+	gVars->indicator.off = Graphics::RGBToColor<ColorMasks<565> >(0,0,0);
 
 	_overlayH =  alloc_screen(_screenWidth, _screenHeight);
 	_overlayP = (OverlayColor *)(BmpGetBits(WinGetBitmap(_overlayH)));
diff --git a/backends/platform/PalmOS/Src/os5_overlay.cpp b/backends/platform/PalmOS/Src/os5_overlay.cpp
index 5555c7ef08..2ffc082547 100644
--- a/backends/platform/PalmOS/Src/os5_overlay.cpp
+++ b/backends/platform/PalmOS/Src/os5_overlay.cpp
@@ -74,13 +74,3 @@ void OSystem_PalmOS5::copyRectToOverlay(const OverlayColor *buf, int pitch, int
 		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 = ((color >> 8) & 0xF8);
-	g = ((color >> 3) & 0xFC);
-	b = ((color << 3) & 0xF8);
-}
diff --git a/backends/platform/PalmOS/Src/zodiac_gfx.cpp b/backends/platform/PalmOS/Src/zodiac_gfx.cpp
index e7f7adb773..866ee086f7 100644
--- a/backends/platform/PalmOS/Src/zodiac_gfx.cpp
+++ b/backends/platform/PalmOS/Src/zodiac_gfx.cpp
@@ -71,8 +71,8 @@ void OSystem_PalmZodiac::load_gfx_mode() {
 	SysSetOrientationTriggerState(sysOrientationTriggerDisabled);
 	PINSetInputTriggerState(pinInputTriggerDisabled);
 
-	gVars->indicator.on = RGBToColor(0,255,0);
-	gVars->indicator.off = RGBToColor(0,0,0);
+	gVars->indicator.on = Graphics::RGBToColor<ColorMasks<565> >(0,255,0);
+	gVars->indicator.off = Graphics::RGBToColor<ColorMasks<565> >(0,0,0);
 
 	_screenH = WinGetDisplayWindow();
 	_screenP = (byte *)BmpGetBits(WinGetBitmap(_screenH));
diff --git a/backends/platform/PalmOS/Src/zodiac_overlay.cpp b/backends/platform/PalmOS/Src/zodiac_overlay.cpp
index 34390853fc..f8322e8fa5 100644
--- a/backends/platform/PalmOS/Src/zodiac_overlay.cpp
+++ b/backends/platform/PalmOS/Src/zodiac_overlay.cpp
@@ -65,13 +65,3 @@ void OSystem_PalmZodiac::copyRectToOverlay(const OverlayColor *buf, int pitch, i
 	};
 	e = TwGfxDrawBitmap(_overlayP, &pos, &bmp);
 }
-
-OverlayColor OSystem_PalmZodiac::RGBToColor(uint8 r, uint8 g, uint8 b) {
-	return TwGfxMakeDisplayRGB(r, g, b);
-}
-
-void OSystem_PalmZodiac::colorToRGB(OverlayColor color, uint8 &r, uint8 &g, uint8 &b) {
-	r = ((color >> 8) & 0xF8);
-	g = ((color >> 3) & 0xFC);
-	b = ((color << 3) & 0xF8);
-}