src/compiler/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 #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 */