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      1 /*
      2  * Copyright  2013 Intel Corporation
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8  * and/or sell copies of the Software, and to permit persons to whom the
      9  * Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the next
     12  * paragraph) shall be included in all copies or substantial portions of the
     13  * Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     21  * DEALINGS IN THE SOFTWARE.
     22  */
     23 
     24 #ifndef LINK_UNIFORM_BLOCK_ACTIVE_VISITOR_H
     25 #define LINK_UNIFORM_BLOCK_ACTIVE_VISITOR_H
     26 
     27 #include "ir.h"
     28 #include "util/hash_table.h"
     29 
     30 struct uniform_block_array_elements {
     31    unsigned *array_elements;
     32    unsigned num_array_elements;
     33 
     34    ir_dereference_array *ir;
     35 
     36    struct uniform_block_array_elements *array;
     37 };
     38 
     39 struct link_uniform_block_active {
     40    const glsl_type *type;
     41    ir_variable *var;
     42 
     43    struct uniform_block_array_elements *array;
     44 
     45    unsigned binding;
     46 
     47    bool has_instance_name;
     48    bool has_binding;
     49    bool is_shader_storage;
     50 };
     51 
     52 class link_uniform_block_active_visitor : public ir_hierarchical_visitor {
     53 public:
     54    link_uniform_block_active_visitor(void *mem_ctx, struct hash_table *ht,
     55 				     struct gl_shader_program *prog)
     56       : success(true), prog(prog), ht(ht), mem_ctx(mem_ctx)
     57    {
     58       /* empty */
     59    }
     60 
     61    virtual ir_visitor_status visit_enter(ir_dereference_array *);
     62    virtual ir_visitor_status visit(ir_dereference_variable *);
     63    virtual ir_visitor_status visit(ir_variable *);
     64 
     65    bool success;
     66 
     67 private:
     68    struct gl_shader_program *prog;
     69    struct hash_table *ht;
     70    void *mem_ctx;
     71 };
     72 
     73 #endif /* LINK_UNIFORM_BLOCK_ACTIVE_VISITOR_H */
     74