mesa: new _mesa_is_pow_two() function

2008-11-10 20:15:28 -07:00
parent 8df4f6667f
commit be1b8e5d6c
5 changed files with 33 additions and 23 deletions
--- a/src/mesa/main/histogram.c
+++ b/src/mesa/main/histogram.c
@@ -955,7 +955,7 @@ _mesa_Histogram(GLenum target, GLsizei width, GLenum internalFormat, GLboolean s
      }
   }

-   if (width != 0 && _mesa_bitcount(width) != 1) {
+   if (width != 0 && !_mesa_is_pow_two(width)) {
      if (target == GL_PROXY_HISTOGRAM) {
         error = GL_TRUE;
      }