X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=util.h;h=5c15c9f789fceda67e764002413d053911524806;hb=8c7e53028a3ef4805d2608643041a5d7e6bd1b6e;hp=77841023363b862a834c86ee9367b28038650b4e;hpb=818a3ca926f2acb93157b386fb1dcb511e6b56c4;p=movit

diff --git a/util.h b/util.h
index 7784102..5c15c9f 100644
--- a/util.h
+++ b/util.h
@@ -34,6 +34,9 @@ void print_3x3_matrix(const Eigen::Matrix3d &m);
 // Output a GLSL 3x3 matrix declaration.
 std::string output_glsl_mat3(const std::string &name, const Eigen::Matrix3d &m);
 
+// Calculate a / b, rounding up. Does not handle overflow correctly.
+unsigned div_round_up(unsigned a, unsigned b);
+
 // Calculate where to sample, and with what weight, if one wants to use
 // the GPU's bilinear hardware to sample w1 * x[0] + w2 * x[1].
 //