Add an FFT convolution effect.

[movit] / util.h

diff --git a/util.h b/util.h
index c59231d205d2537c4ec965a4b5b85cf4162ff8f4..c5dafed6b7160f8b080ea6536608e1fd7735ee54 100644 (file)
--- a/util.h
+++ b/util.h
@@ -53,6 +53,9 @@ GLuint fill_vertex_attribute(GLuint glsl_program_num, const std::string &attribu
 // Clean up after fill_vertex_attribute().
 void cleanup_vertex_attribute(GLuint glsl_program_num, const std::string &attribute_name, GLuint vbo);
 
+// If v is not already a power of two, return the first higher power of two.
+unsigned next_power_of_two(unsigned v);
+
 }  // namespace movit
 
 #ifdef NDEBUG