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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 #pragma once
     25 #ifndef LINK_UNIFORM_BLOCK_ACTIVE_VISITOR_H
     26 #define LINK_UNIFORM_BLOCK_ACTIVE_VISITOR_H
     27 
     28 #include "ir.h"
     29 #include "util/hash_table.h"
     30 
     31 struct uniform_block_array_elements {
     32    unsigned *array_elements;
     33    unsigned num_array_elements;
     34 
     35    ir_dereference_array *ir;
     36 
     37    struct uniform_block_array_elements *array;
     38 };
     39 
     40 struct link_uniform_block_active {
     41    const glsl_type *type;
     42    ir_variable *var;
     43 
     44    struct uniform_block_array_elements *array;
     45 
     46    unsigned binding;
     47 
     48    bool has_instance_name;
     49    bool has_binding;
     50    bool is_shader_storage;
     51 };
     52 
     53 class link_uniform_block_active_visitor : public ir_hierarchical_visitor {
     54 public:
     55    link_uniform_block_active_visitor(void *mem_ctx, struct hash_table *ht,
     56 				     struct gl_shader_program *prog)
     57       : success(true), prog(prog), ht(ht), mem_ctx(mem_ctx)
     58    {
     59       /* empty */
     60    }
     61 
     62    virtual ir_visitor_status visit_enter(ir_dereference_array *);
     63    virtual ir_visitor_status visit(ir_dereference_variable *);
     64    virtual ir_visitor_status visit(ir_variable *);
     65 
     66    bool success;
     67 
     68 private:
     69    struct gl_shader_program *prog;
     70    struct hash_table *ht;
     71    void *mem_ctx;
     72 };
     73 
     74 #endif /* LINK_UNIFORM_BLOCK_ACTIVE_VISITOR_H */
     75