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-rw-r--r--src/mesa/swrast/s_alpha.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mesa/swrast/s_alpha.c b/src/mesa/swrast/s_alpha.c
index dadb51319c..87a016512c 100644
--- a/src/mesa/swrast/s_alpha.c
+++ b/src/mesa/swrast/s_alpha.c
@@ -136,14 +136,14 @@ _swrast_alpha_test(const GLcontext *ctx, SWspan *span)
GLfixed alpha = span->alpha;
GLubyte ref;
CLAMPED_FLOAT_TO_UBYTE(ref, ctx->Color.AlphaRef);
- ALPHA_TEST(alpha, alpha += alphaStep);
+ ALPHA_TEST(FixedToInt(alpha), alpha += alphaStep);
}
else if (span->array->ChanType == GL_UNSIGNED_SHORT) {
const GLfixed alphaStep = span->alphaStep;
GLfixed alpha = span->alpha;
GLushort ref;
CLAMPED_FLOAT_TO_USHORT(ref, ctx->Color.AlphaRef);
- ALPHA_TEST(alpha, alpha += alphaStep);
+ ALPHA_TEST(FixedToInt(alpha), alpha += alphaStep);
}
else {
const GLfloat alphaStep = span->alphaStep;