Some preparation work for new platform support.

- Added a "PSP" compile-time define to clean up some compile time checks (replaced !WIN32 && !LINUX && !IOS with PSP) 
-- Wil, I am aware that this is redundant with the PSPENV variable you introduced recently, I think we can clean that up easily
-- This looks like lots of changes, but most of the time I just moved some blocks here and there
-- tested on VC 2010, PSP, and a bit of NDK
-- I might have broken maemo, iOS, or Linux compilation, can you guys check?
- Fixed some warnings reported by NDK
- NDK still does not compile because recent boost additions (mutex, etc...) are apparently not supported

JGE/src/JSprite.cpp

@@ -145,11 +145,11 @@ void JSprite::Render()
 //			//mQuad->SetColor(ARGB(alpha,255,255,255));
 	
 
-#if defined (WIN32) || defined (LINUX) || defined (IOS)
+#if defined (PSP)
+			mFrames[mCurrentFrame]->SetColor(MAKE_COLOR(alpha, mColor));
+#else
 			mFrames[mCurrentFrame]->SetColor(alpha<<24 | mColor);
 //			mQuad->SetFlip(mFlipped[mCurrentFrame], false);
-#else
-			mFrames[mCurrentFrame]->SetColor(MAKE_COLOR(alpha, mColor));
 #endif
 //			mQuad->SetHFlip(mFlipped[mCurrentFrame]);
 //		}
@@ -306,10 +306,10 @@ void JSprite::SetHotSpot(float x, float y, int index)
 
 }
 
-#if defined (WIN32) || defined (LINUX) || defined (IOS)
-void JSprite::SetColor(PIXEL_TYPE color) { mColor = (color&0x00ffffff); }
-#else
+#if defined (PSP)
 void JSprite::SetColor(PIXEL_TYPE color) { mColor = (color&~MASK_ALPHA); }
+#else
+void JSprite::SetColor(PIXEL_TYPE color) { mColor = (color&0x00ffffff); }
 #endif
 
 // void JSprite::SetBlendMode(int blend, int index)