mesa: remove incorrect (float) cast in mipmap do_row()

The array holds GLuint values so remove the float cast.
Note, however, that to compute the average of four GLuints we really
want to do (a+b+c+d)/4 but that could overflow.  This change doesn't
address that for now.

NOTE: This is a candidate for the 8.0 branch.

Reviewed-by: José Fonseca <jfonseca@vmware.com>

diff --git a/src/mesa/main/mipmap.c b/src/mesa/main/mipmap.c
index 867506c9fc70b1a66a5f5687a656d532cd0e1a5b..03ce5361e6bdc42056f9df86440ce58084638dec 100644 (file)
--- a/src/mesa/main/mipmap.c
+++ b/src/mesa/main/mipmap.c
@@ -476,7 +476,7 @@ do_row(GLenum datatype, GLuint comps, GLint srcWidth,
       GLuint *dst = (GLuint *) dstRow;
       for (i = j = 0, k = k0; i < (GLuint) dstWidth;
            i++, j += colStride, k += colStride) {
-         dst[i] = (GLfloat)(rowA[j] / 4 + rowA[k] / 4 + rowB[j] / 4 + rowB[k] / 4);
+         dst[i] = rowA[j] / 4 + rowA[k] / 4 + rowB[j] / 4 + rowB[k] / 4;
       }
    }