src/compiler/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 "util/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    glsl_type_singleton_init_or_ref();
  50
  51    this->mem_ctx = ralloc_context(NULL);
  52    this->ir.make_empty();
  53 }
  54
  55 void
  56 invalidate_locations::TearDown()
  57 {
  58    ralloc_free(this->mem_ctx);
  59    this->mem_ctx = NULL;
  60
  61    glsl_type_singleton_decref();
  62 }
  63
  64 TEST_F(invalidate_locations, simple_vertex_in_generic)
  65 {
  66    ir_variable *const var =
  67       new(mem_ctx) ir_variable(glsl_type::vec(4),
  68                                "a",
  69                                ir_var_shader_in);
  70
  71    EXPECT_FALSE(var->data.explicit_location);
  72    EXPECT_EQ(-1, var->data.location);
  73
  74    var->data.location = VERT_ATTRIB_GENERIC0;
  75    var->data.location_frac = 2;
  76
  77    ir.push_tail(var);
  78
  79    link_invalidate_variable_locations(&ir);
  80
  81    EXPECT_EQ(-1, var->data.location);
  82    EXPECT_EQ(0u, var->data.location_frac);
  83    EXPECT_FALSE(var->data.explicit_location);
  84    EXPECT_TRUE(var->data.is_unmatched_generic_inout);
  85 }
  86
  87 TEST_F(invalidate_locations, explicit_location_vertex_in_generic)
  88 {
  89    ir_variable *const var =
  90       new(mem_ctx) ir_variable(glsl_type::vec(4),
  91                                "a",
  92                                ir_var_shader_in);
  93
  94    EXPECT_FALSE(var->data.explicit_location);
  95    EXPECT_EQ(-1, var->data.location);
  96
  97    var->data.location = VERT_ATTRIB_GENERIC0;
  98    var->data.explicit_location = true;
  99
 100    ir.push_tail(var);
 101
 102    link_invalidate_variable_locations(&ir);
 103
 104    EXPECT_EQ(VERT_ATTRIB_GENERIC0, var->data.location);
 105    EXPECT_EQ(0u, var->data.location_frac);
 106    EXPECT_TRUE(var->data.explicit_location);
 107    EXPECT_FALSE(var->data.is_unmatched_generic_inout);
 108 }
 109
 110 TEST_F(invalidate_locations, explicit_location_frac_vertex_in_generic)
 111 {
 112    ir_variable *const var =
 113       new(mem_ctx) ir_variable(glsl_type::vec(4),
 114                                "a",
 115                                ir_var_shader_in);
 116
 117    EXPECT_FALSE(var->data.explicit_location);
 118    EXPECT_EQ(-1, var->data.location);
 119
 120    var->data.location = VERT_ATTRIB_GENERIC0;
 121    var->data.location_frac = 2;
 122    var->data.explicit_location = true;
 123
 124    ir.push_tail(var);
 125
 126    link_invalidate_variable_locations(&ir);
 127
 128    EXPECT_EQ(VERT_ATTRIB_GENERIC0, var->data.location);
 129    EXPECT_EQ(2u, var->data.location_frac);
 130    EXPECT_TRUE(var->data.explicit_location);
 131    EXPECT_FALSE(var->data.is_unmatched_generic_inout);
 132 }
 133
 134 TEST_F(invalidate_locations, vertex_in_builtin)
 135 {
 136    ir_variable *const var =
 137       new(mem_ctx) ir_variable(glsl_type::vec(4),
 138                                "gl_Vertex",
 139                                ir_var_shader_in);
 140
 141    EXPECT_FALSE(var->data.explicit_location);
 142    EXPECT_EQ(-1, var->data.location);
 143
 144    var->data.location = VERT_ATTRIB_POS;
 145    var->data.explicit_location = true;
 146
 147    ir.push_tail(var);
 148
 149    link_invalidate_variable_locations(&ir);
 150
 151    EXPECT_EQ(VERT_ATTRIB_POS, var->data.location);
 152    EXPECT_EQ(0u, var->data.location_frac);
 153    EXPECT_TRUE(var->data.explicit_location);
 154    EXPECT_FALSE(var->data.is_unmatched_generic_inout);
 155 }
 156
 157 TEST_F(invalidate_locations, simple_vertex_out_generic)
 158 {
 159    ir_variable *const var =
 160       new(mem_ctx) ir_variable(glsl_type::vec(4),
 161                                "a",
 162                                ir_var_shader_out);
 163
 164    EXPECT_FALSE(var->data.explicit_location);
 165    EXPECT_EQ(-1, var->data.location);
 166
 167    var->data.location = VARYING_SLOT_VAR0;
 168
 169    ir.push_tail(var);
 170
 171    link_invalidate_variable_locations(&ir);
 172
 173    EXPECT_EQ(-1, var->data.location);
 174    EXPECT_EQ(0u, var->data.location_frac);
 175    EXPECT_FALSE(var->data.explicit_location);
 176    EXPECT_TRUE(var->data.is_unmatched_generic_inout);
 177 }
 178
 179 TEST_F(invalidate_locations, vertex_out_builtin)
 180 {
 181    ir_variable *const var =
 182       new(mem_ctx) ir_variable(glsl_type::vec(4),
 183                                "gl_FrontColor",
 184                                ir_var_shader_out);
 185
 186    EXPECT_FALSE(var->data.explicit_location);
 187    EXPECT_EQ(-1, var->data.location);
 188
 189    var->data.location = VARYING_SLOT_COL0;
 190    var->data.explicit_location = true;
 191
 192    ir.push_tail(var);
 193
 194    link_invalidate_variable_locations(&ir);
 195
 196    EXPECT_EQ(VARYING_SLOT_COL0, var->data.location);
 197    EXPECT_EQ(0u, var->data.location_frac);
 198    EXPECT_TRUE(var->data.explicit_location);
 199    EXPECT_FALSE(var->data.is_unmatched_generic_inout);
 200 }