src/glsl/tests/invalidate_locations_test.cpp

   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 #include <gtest/gtest.h>
  24 #include "main/compiler.h"
  25 #include "main/mtypes.h"
  26 #include "main/macros.h"
  27 #include "util/ralloc.h"
  28 #include "ir.h"
  29 #include "linker.h"
  30
  31 /**
  32  * \file varyings_test.cpp
  33  *
  34  * Test various aspects of linking shader stage inputs and outputs.
  35  */
  36
  37 class invalidate_locations : public ::testing::Test {
  38 public:
  39    virtual void SetUp();
  40    virtual void TearDown();
  41
  42    void *mem_ctx;
  43    exec_list ir;
  44 };
  45
  46 void
  47 invalidate_locations::SetUp()
  48 {
  49    this->mem_ctx = ralloc_context(NULL);
  50    this->ir.make_empty();
  51 }
  52
  53 void
  54 invalidate_locations::TearDown()
  55 {
  56    ralloc_free(this->mem_ctx);
  57    this->mem_ctx = NULL;
  58 }
  59
  60 TEST_F(invalidate_locations, simple_vertex_in_generic)
  61 {
  62    ir_variable *const var =
  63       new(mem_ctx) ir_variable(glsl_type::vec(4),
  64                                "a",
  65                                ir_var_shader_in);
  66
  67    EXPECT_FALSE(var->data.explicit_location);
  68    EXPECT_EQ(-1, var->data.location);
  69
  70    var->data.location = VERT_ATTRIB_GENERIC0;
  71    var->data.location_frac = 2;
  72
  73    ir.push_tail(var);
  74
  75    link_invalidate_variable_locations(&ir);
  76
  77    EXPECT_EQ(-1, var->data.location);
  78    EXPECT_EQ(0u, var->data.location_frac);
  79    EXPECT_FALSE(var->data.explicit_location);
  80    EXPECT_TRUE(var->data.is_unmatched_generic_inout);
  81 }
  82
  83 TEST_F(invalidate_locations, explicit_location_vertex_in_generic)
  84 {
  85    ir_variable *const var =
  86       new(mem_ctx) ir_variable(glsl_type::vec(4),
  87                                "a",
  88                                ir_var_shader_in);
  89
  90    EXPECT_FALSE(var->data.explicit_location);
  91    EXPECT_EQ(-1, var->data.location);
  92
  93    var->data.location = VERT_ATTRIB_GENERIC0;
  94    var->data.explicit_location = true;
  95
  96    ir.push_tail(var);
  97
  98    link_invalidate_variable_locations(&ir);
  99
 100    EXPECT_EQ(VERT_ATTRIB_GENERIC0, var->data.location);
 101    EXPECT_EQ(0u, var->data.location_frac);
 102    EXPECT_TRUE(var->data.explicit_location);
 103    EXPECT_FALSE(var->data.is_unmatched_generic_inout);
 104 }
 105
 106 TEST_F(invalidate_locations, explicit_location_frac_vertex_in_generic)
 107 {
 108    ir_variable *const var =
 109       new(mem_ctx) ir_variable(glsl_type::vec(4),
 110                                "a",
 111                                ir_var_shader_in);
 112
 113    EXPECT_FALSE(var->data.explicit_location);
 114    EXPECT_EQ(-1, var->data.location);
 115
 116    var->data.location = VERT_ATTRIB_GENERIC0;
 117    var->data.location_frac = 2;
 118    var->data.explicit_location = true;
 119
 120    ir.push_tail(var);
 121
 122    link_invalidate_variable_locations(&ir);
 123
 124    EXPECT_EQ(VERT_ATTRIB_GENERIC0, var->data.location);
 125    EXPECT_EQ(2u, var->data.location_frac);
 126    EXPECT_TRUE(var->data.explicit_location);
 127    EXPECT_FALSE(var->data.is_unmatched_generic_inout);
 128 }
 129
 130 TEST_F(invalidate_locations, vertex_in_builtin)
 131 {
 132    ir_variable *const var =
 133       new(mem_ctx) ir_variable(glsl_type::vec(4),
 134                                "gl_Vertex",
 135                                ir_var_shader_in);
 136
 137    EXPECT_FALSE(var->data.explicit_location);
 138    EXPECT_EQ(-1, var->data.location);
 139
 140    var->data.location = VERT_ATTRIB_POS;
 141    var->data.explicit_location = true;
 142
 143    ir.push_tail(var);
 144
 145    link_invalidate_variable_locations(&ir);
 146
 147    EXPECT_EQ(VERT_ATTRIB_POS, var->data.location);
 148    EXPECT_EQ(0u, var->data.location_frac);
 149    EXPECT_TRUE(var->data.explicit_location);
 150    EXPECT_FALSE(var->data.is_unmatched_generic_inout);
 151 }
 152
 153 TEST_F(invalidate_locations, simple_vertex_out_generic)
 154 {
 155    ir_variable *const var =
 156       new(mem_ctx) ir_variable(glsl_type::vec(4),
 157                                "a",
 158                                ir_var_shader_out);
 159
 160    EXPECT_FALSE(var->data.explicit_location);
 161    EXPECT_EQ(-1, var->data.location);
 162
 163    var->data.location = VARYING_SLOT_VAR0;
 164
 165    ir.push_tail(var);
 166
 167    link_invalidate_variable_locations(&ir);
 168
 169    EXPECT_EQ(-1, var->data.location);
 170    EXPECT_EQ(0u, var->data.location_frac);
 171    EXPECT_FALSE(var->data.explicit_location);
 172    EXPECT_TRUE(var->data.is_unmatched_generic_inout);
 173 }
 174
 175 TEST_F(invalidate_locations, vertex_out_builtin)
 176 {
 177    ir_variable *const var =
 178       new(mem_ctx) ir_variable(glsl_type::vec(4),
 179                                "gl_FrontColor",
 180                                ir_var_shader_out);
 181
 182    EXPECT_FALSE(var->data.explicit_location);
 183    EXPECT_EQ(-1, var->data.location);
 184
 185    var->data.location = VARYING_SLOT_COL0;
 186    var->data.explicit_location = true;
 187
 188    ir.push_tail(var);
 189
 190    link_invalidate_variable_locations(&ir);
 191
 192    EXPECT_EQ(VARYING_SLOT_COL0, var->data.location);
 193    EXPECT_EQ(0u, var->data.location_frac);
 194    EXPECT_TRUE(var->data.explicit_location);
 195    EXPECT_FALSE(var->data.is_unmatched_generic_inout);
 196 }