link_uniform_blocks_are_compatible(const gl_uniform_block *a,
const gl_uniform_block *b);
+extern int
+link_uniform_blocks(void *mem_ctx,
+ struct gl_shader_program *prog,
+ struct gl_shader **shader_list,
+ unsigned num_shaders,
+ struct gl_uniform_block **blocks_ret);
+
/**
- * Class for processing all of the leaf fields of an uniform
+ * Class for processing all of the leaf fields of a variable that corresponds
+ * to a program resource.
*
- * 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).
+ * The leaf fields are all the parts of the variable that the application
+ * could query using \c glGetProgramResourceIndex (or that could be returned
+ * by \c glGetProgramResourceName).
*
* 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 {
+class program_resource_visitor {
public:
/**
- * Begin processing a uniform
+ * Begin processing a variable
*
* Classes that overload this function should call \c ::process from the
- * base class to start the recursive processing of the uniform.
+ * base class to start the recursive processing of the variable.
*
- * \param var The uniform variable that is to be processed
+ * \param var The variable that is to be processed
*
- * Calls \c ::visit_field for each leaf of the uniform.
+ * Calls \c ::visit_field for each leaf of the variable.
+ *
+ * \warning
+ * When processing a uniform block, this entry should only be used in cases
+ * where the row / column ordering of matrices in the block does not
+ * matter. For example, enumerating the names of members of the block, but
+ * not for determining the offsets of members.
*/
void process(ir_variable *var);
+ /**
+ * Begin processing a variable of a structured type.
+ *
+ * This flavor of \c process should be used to handle structured types
+ * (i.e., structures, interfaces, or arrays there of) that need special
+ * name handling. A common usage is to handle cases where the block name
+ * (instead of the instance name) is used for an interface block.
+ *
+ * \param type Type that is to be processed, associated with \c name
+ * \param name Base name of the structured variable being processed
+ *
+ * \note
+ * \c type must be \c GLSL_TYPE_RECORD, \c GLSL_TYPE_INTERFACE, or an array
+ * there of.
+ */
+ void process(const glsl_type *type, const char *name);
+
protected:
/**
- * Method invoked for each leaf of the uniform
+ * Method invoked for each leaf of the variable
*
* \param type Type of the field.
* \param name Fully qualified name of the field.
+ * \param row_major For a matrix type, is it stored row-major.
+ */
+ virtual void visit_field(const glsl_type *type, const char *name,
+ bool row_major) = 0;
+
+ /**
+ * Visit a record before visiting its fields
+ *
+ * For structures-of-structures or interfaces-of-structures, this visits
+ * the inner structure before visiting its fields.
+ *
+ * The default implementation does nothing.
*/
- virtual void visit_field(const glsl_type *type, const char *name) = 0;
+ virtual void visit_field(const glsl_struct_field *field);
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);
+ void recursion(const glsl_type *t, char **name, size_t name_length,
+ bool row_major);
};
void