src/glsl/link_uniform_block_active_visitor.h

   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 */