Added color-inversion effect in character selection screen. The effect doesn't exactly work like the original yet (Amiga only).

svn-id: r29372

1 files changed, 15 insertions, 0 deletions

diff --git a/engines/parallaction/graphics.cpp b/engines/parallaction/graphics.cpp
index bd4e094156..a60f272ca8 100644
--- a/engines/parallaction/graphics.cpp
+++ b/engines/parallaction/graphics.cpp
@@ -334,6 +334,21 @@ void Gfx::floodFill(Gfx::Buffers buffer, const Common::Rect& r, byte color) {
 	return;
 }
 
+void Gfx::invertRect(Gfx::Buffers buffer, const Common::Rect& r) {
+
+	byte *d = (byte*)_buffers[buffer]->getBasePtr(r.left, r.top);
+
+	for (int i = 0; i < r.height(); i++) {
+		for (int j = 0; j < r.width(); j++) {
+			*d ^= 0x1F;
+			d++;
+		}
+
+		d += (_buffers[buffer]->pitch - r.width());
+	}
+
+}
+
 void Gfx::screenClip(Common::Rect& r, Common::Point& p) {
 
 	int32 x = r.left;