src/glsl/ast_type.cpp

   1 /*
   2  * Copyright © 2010 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 #include "ast.h"
  25 extern "C" {
  26 #include "program/symbol_table.h"
  27 }
  28
  29 void
  30 ast_type_specifier::print(void) const
  31 {
  32    if (type_specifier == ast_struct) {
  33       structure->print();
  34    } else {
  35       printf("%s ", type_name);
  36    }
  37
  38    if (is_array) {
  39       printf("[ ");
  40
  41       if (array_size) {
  42          array_size->print();
  43       }
  44
  45       printf("] ");
  46    }
  47 }
  48
  49 ast_type_specifier::ast_type_specifier(int specifier)
  50       : type_specifier(ast_types(specifier)), type_name(NULL), structure(NULL),
  51         is_array(false), array_size(NULL), precision(ast_precision_none),
  52         is_precision_statement(false)
  53 {
  54    static const char *const names[] = {
  55       "void",
  56       "float",
  57       "int",
  58       "uint",
  59       "bool",
  60       "vec2",
  61       "vec3",
  62       "vec4",
  63       "bvec2",
  64       "bvec3",
  65       "bvec4",
  66       "ivec2",
  67       "ivec3",
  68       "ivec4",
  69       "uvec2",
  70       "uvec3",
  71       "uvec4",
  72       "mat2",
  73       "mat2x3",
  74       "mat2x4",
  75       "mat3x2",
  76       "mat3",
  77       "mat3x4",
  78       "mat4x2",
  79       "mat4x3",
  80       "mat4",
  81       "sampler1D",
  82       "sampler2D",
  83       "sampler2DRect",
  84       "sampler3D",
  85       "samplerCube",
  86       "samplerExternalOES",
  87       "sampler1DShadow",
  88       "sampler2DShadow",
  89       "sampler2DRectShadow",
  90       "samplerCubeShadow",
  91       "sampler1DArray",
  92       "sampler2DArray",
  93       "sampler1DArrayShadow",
  94       "sampler2DArrayShadow",
  95       "isampler1D",
  96       "isampler2D",
  97       "isampler3D",
  98       "isamplerCube",
  99       "isampler1DArray",
 100       "isampler2DArray",
 101       "usampler1D",
 102       "usampler2D",
 103       "usampler3D",
 104       "usamplerCube",
 105       "usampler1DArray",
 106       "usampler2DArray",
 107
 108       NULL, /* ast_struct */
 109       NULL  /* ast_type_name */
 110    };
 111
 112    type_name = names[specifier];
 113 }
 114
 115 bool
 116 ast_fully_specified_type::has_qualifiers() const
 117 {
 118    return this->qualifier.flags.i != 0;
 119 }
 120
 121 bool ast_type_qualifier::has_interpolation() const
 122 {
 123    return this->flags.q.smooth
 124           || this->flags.q.flat
 125           || this->flags.q.noperspective;
 126 }
 127
 128 const char*
 129 ast_type_qualifier::interpolation_string() const
 130 {
 131    if (this->flags.q.smooth)
 132       return "smooth";
 133    else if (this->flags.q.flat)
 134       return "flat";
 135    else if (this->flags.q.noperspective)
 136       return "noperspective";
 137    else
 138       return NULL;
 139 }