X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=util.h;h=c59231d205d2537c4ec965a4b5b85cf4162ff8f4;hb=583151ff64eaa763508e09940b8db9097dc049dc;hp=f62618c404325ef7ef44f2b5b02326e208fc32c7;hpb=ca4d87878bb32c7d672ac00f41ca0292f19acfcb;p=movit

diff --git a/util.h b/util.h
index f62618c..c59231d 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].
 //
@@ -43,6 +46,13 @@ std::string output_glsl_mat3(const std::string &name, const Eigen::Matrix3d &m);
 // (estimated) squared errors of the two weights.
 void combine_two_samples(float w1, float w2, float *offset, float *total_weight, float *sum_sq_error);
 
+// Create a VBO with the given data, and bind it to the vertex attribute
+// with name <attribute_name>. Returns the VBO number.
+GLuint fill_vertex_attribute(GLuint glsl_program_num, const std::string &attribute_name, GLint size, GLenum type, GLsizeiptr data_size, const GLvoid *data);
+
+// Clean up after fill_vertex_attribute().
+void cleanup_vertex_attribute(GLuint glsl_program_num, const std::string &attribute_name, GLuint vbo);
+
 }  // namespace movit
 
 #ifdef NDEBUG