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-rw-r--r--graphics/managed_surface.cpp6
1 files changed, 3 insertions, 3 deletions
diff --git a/graphics/managed_surface.cpp b/graphics/managed_surface.cpp
index e781d7a27a..00dc511904 100644
--- a/graphics/managed_surface.cpp
+++ b/graphics/managed_surface.cpp
@@ -208,9 +208,9 @@ void ManagedSurface::blitFrom(const Surface &src, const Common::Rect &srcRect,
} else {
// Partially transparent, so calculate new pixel colors
alpha = (double)aSrc / 255.0;
- rDest = (rSrc * alpha) + (rDest * (1.0 - alpha));
- gDest = (gSrc * alpha) + (gDest * (1.0 - alpha));
- bDest = (bSrc * alpha) + (bDest * (1.0 - alpha));
+ rDest = static_cast<byte>((rSrc * alpha) + (rDest * (1.0 - alpha)));
+ gDest = static_cast<byte>((gSrc * alpha) + (gDest * (1.0 - alpha)));
+ bDest = static_cast<byte>((bSrc * alpha) + (bDest * (1.0 - alpha)));
}
destPixel = format.ARGBToColor(0xff, rDest, gDest, bDest);