+/* -*- c++ -*- */
/*
* Copyright © 2010 Intel Corporation
*
#ifndef GLSL_LINKER_H
#define GLSL_LINKER_H
-extern void
-linker_error_printf(gl_shader_program *prog, const char *fmt, ...);
-
extern bool
link_function_calls(gl_shader_program *prog, gl_shader *main,
gl_shader **shader_list, unsigned num_shaders);
+extern void
+link_invalidate_variable_locations(gl_shader *sh, enum ir_variable_mode mode,
+ int generic_base);
+
+extern void
+link_assign_uniform_locations(struct gl_shader_program *prog);
+
+/**
+ * Class for processing all of the leaf fields of an uniform
+ *
+ * Leaves are, roughly speaking, the parts of the uniform that the application
+ * could query with \c glGetUniformLocation (or that could be returned by
+ * \c glGetActiveUniforms).
+ *
+ * Classes my derive from this class to implement specific functionality.
+ * This class only provides the mechanism to iterate over the leaves. Derived
+ * classes must implement \c ::visit_field and may override \c ::process.
+ */
+class uniform_field_visitor {
+public:
+ /**
+ * Begin processing a uniform
+ *
+ * Classes that overload this function should call \c ::process from the
+ * base class to start the recursive processing of the uniform.
+ *
+ * \param var The uniform variable that is to be processed
+ *
+ * Calls \c ::visit_field for each leaf of the uniform.
+ */
+ void process(ir_variable *var);
+
+protected:
+ /**
+ * Method invoked for each leaf of the uniform
+ *
+ * \param type Type of the field.
+ * \param name Fully qualified name of the field.
+ */
+ virtual void visit_field(const glsl_type *type, const char *name) = 0;
+
+private:
+ /**
+ * \param name_length Length of the current name \b not including the
+ * terminating \c NUL character.
+ */
+ void recursion(const glsl_type *t, char **name, size_t name_length);
+};
+
#endif /* GLSL_LINKER_H */