+ // Determine the preferred output size of a given phase.
+ // Requires that all input phases (if any) already have output sizes set.
+ void find_output_size(Phase *phase);
+
+ // Find all inputs eventually feeding into this effect that have
+ // output gamma different from GAMMA_LINEAR.
+ void find_all_nonlinear_inputs(Node *effect, std::vector<Node *> *nonlinear_inputs);
+
+ // Create a GLSL program computing the given effects in order.
+ Phase *compile_glsl_program(const std::vector<Node *> &inputs,
+ const std::vector<Node *> &effects);
+
+ // Create all GLSL programs needed to compute the given effect, and all outputs
+ // that depends on it (whenever possible).
+ void construct_glsl_programs(Node *output);
+
+ // Output the current graph to the given file in a Graphviz-compatible format;
+ // only useful for debugging.
+ void output_dot(const char *filename);