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-rw-r--r--win32/PlatWin.cxx8
1 files changed, 4 insertions, 4 deletions
diff --git a/win32/PlatWin.cxx b/win32/PlatWin.cxx
index ffb129d49..507567bb8 100644
--- a/win32/PlatWin.cxx
+++ b/win32/PlatWin.cxx
@@ -848,10 +848,10 @@ void SurfaceGDI::DrawRGBAImage(PRectangle rc, int width, int height, const unsig
unsigned char *pixel = image + (y*width+x) * 4;
unsigned char alpha = pixelsImage[3];
// Input is RGBA, output is BGRA with premultiplied alpha
- pixel[2] = (*pixelsImage++) * alpha / 255;
- pixel[1] = (*pixelsImage++) * alpha / 255;
- pixel[0] = (*pixelsImage++) * alpha / 255;
- pixel[3] = *pixelsImage++;
+ pixel[2] = static_cast<unsigned char>((*pixelsImage++) * alpha / 255);
+ pixel[1] = static_cast<unsigned char>((*pixelsImage++) * alpha / 255);
+ pixel[0] = static_cast<unsigned char>((*pixelsImage++) * alpha / 255);
+ pixel[3] = static_cast<unsigned char>(*pixelsImage++);
}
}