Applied roever's screen effects patch (#602595) and fixed LethalWP's Makefile ;)

svn-id: r4909

1 files changed, 42 insertions, 0 deletions

diff --git a/backends/wince/pocketpc.cpp b/backends/wince/pocketpc.cpp
index 0162d14e28..6adb61b0b3 100644
--- a/backends/wince/pocketpc.cpp
+++ b/backends/wince/pocketpc.cpp
@@ -95,6 +95,8 @@ public:
 	// The screen will not be updated to reflect the new bitmap
 	void copy_rect(const byte *buf, int pitch, int x, int y, int w, int h);
 
+	void move_screen(int dx, int dy, int height);
+
 	// Update the dirty areas of the screen
 	void update_screen();
 
@@ -1215,6 +1217,46 @@ void OSystem_WINCE3::copy_rect(const byte *buf, int pitch, int x, int y, int w,
 	} while (--h);
 }
 
+void OSystem_WINCE3::move_screen(int dx, int dy, int height) {
+
+	if ((dx == 0) && (dy == 0))
+		return;
+
+	if (dx == 0) {
+		// vertical movement
+		if (dy > 0) {
+			// move down
+			// copy from bottom to top
+			for (int y = height - 1; y >= dy; y--)
+				copy_rect(_gfx_buf + SCREEN_WIDTH * (y - dy), SCREEN_WIDTH, 0, y, SCREEN_WIDTH, 1);
+		} else {
+			// move up
+			// copy from top to bottom
+			for (int y = 0; y < height + dx; y++)
+				copy_rect(_gfx_buf + SCREEN_WIDTH * (y - dy), SCREEN_WIDTH, 0, y, SCREEN_WIDTH, 1);
+		}
+	} else if (dy == 0) {
+		// horizontal movement
+		if (dx > 0) {
+			// move right
+			// copy from right to left
+			for (int x = SCREEN_WIDTH - 1; x >= dx; x--)
+				copy_rect(_gfx_buf + x - dx, SCREEN_WIDTH, x, 0, 1, height);
+		} else {
+			// move left
+			// copy from left to right
+			for (int x = 0; x < SCREEN_WIDTH; x++)
+				copy_rect(_gfx_buf + x - dx, SCREEN_WIDTH, x, 0, 1, height);
+		}
+	} else {
+		// free movement
+		// not neccessary for now
+	}
+
+
+}
+
+
 void OSystem_WINCE3::update_screen() {
 
 	if (!hide_cursor)