gpu/command_buffer/tests/gl_virtual_contexts_unittest.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include <GLES2/gl2.h>
   6 #include <GLES2/gl2ext.h>
   7
   8 #include "gpu/command_buffer/tests/gl_manager.h"
   9 #include "gpu/command_buffer/tests/gl_test_utils.h"
  10 #include "testing/gmock/include/gmock/gmock.h"
  11 #include "testing/gtest/include/gtest/gtest.h"
  12
  13
  14 #define SHADER(Src) #Src
  15
  16 namespace gpu {
  17
  18 class GLVirtualContextsTest : public testing::Test {
  19  protected:
  20   static const int kSize0 = 4;
  21   static const int kSize1 = 8;
  22   static const int kSize2 = 16;
  23
  24   static const GLfloat kFloatRed[4];
  25   static const GLfloat kFloatGreen[4];
  26   static const uint8 kExpectedRed[4];
  27   static const uint8 kExpectedGreen[4];
  28
  29   void SetUp() override {
  30     GLManager::Options options;
  31     options.size = gfx::Size(kSize0, kSize0);
  32     gl_real_.Initialize(options);
  33     gl_real_shared_.Initialize(options);
  34     options.virtual_manager = &gl_real_shared_;
  35     options.size = gfx::Size(kSize1, kSize1);
  36     gl1_.Initialize(options);
  37     options.size = gfx::Size(kSize2, kSize2);
  38     gl2_.Initialize(options);
  39   }
  40
  41   void TearDown() override {
  42     gl1_.Destroy();
  43     gl2_.Destroy();
  44     gl_real_shared_.Destroy();
  45     gl_real_.Destroy();
  46   }
  47
  48   GLuint SetupColoredVertexProgram() {
  49     static const char* v_shader_str = SHADER(
  50         attribute vec4 a_position;
  51         attribute vec4 a_color;
  52         varying vec4 v_color;
  53         void main()
  54         {
  55            gl_Position = a_position;
  56            v_color = a_color;
  57         }
  58      );
  59
  60     static const char* f_shader_str = SHADER(
  61         precision mediump float;
  62         varying vec4 v_color;
  63         void main()
  64         {
  65           gl_FragColor = v_color;
  66         }
  67     );
  68
  69     GLuint program = GLTestHelper::LoadProgram(v_shader_str, f_shader_str);
  70     glUseProgram(program);
  71     return program;
  72   }
  73
  74   void SetUpColoredUnitQuad(const GLfloat* color) {
  75     GLuint program1 = SetupColoredVertexProgram();
  76     GLuint position_loc1 = glGetAttribLocation(program1, "a_position");
  77     GLuint color_loc1 = glGetAttribLocation(program1, "a_color");
  78     GLTestHelper::SetupUnitQuad(position_loc1);
  79     GLTestHelper::SetupColorsForUnitQuad(color_loc1, color, GL_STATIC_DRAW);
  80   }
  81
  82   GLManager gl_real_;
  83   GLManager gl_real_shared_;
  84   GLManager gl1_;
  85   GLManager gl2_;
  86 };
  87
  88 const GLfloat GLVirtualContextsTest::kFloatRed[4] = {
  89     1.0f, 0.0f, 0.0f, 1.0f,
  90 };
  91 const GLfloat GLVirtualContextsTest::kFloatGreen[4] = {
  92     0.0f, 1.0f, 0.0f, 1.0f,
  93 };
  94 const uint8 GLVirtualContextsTest::kExpectedRed[4] = {
  95     255, 0, 0, 255,
  96 };
  97 const uint8 GLVirtualContextsTest::kExpectedGreen[4] = {
  98     0, 255, 0, 255,
  99 };
 100
 101 namespace {
 102
 103 void SetupSimpleShader(const uint8* color) {
 104   static const char* v_shader_str = SHADER(
 105       attribute vec4 a_Position;
 106       void main()
 107       {
 108          gl_Position = a_Position;
 109       }
 110    );
 111
 112   static const char* f_shader_str = SHADER(
 113       precision mediump float;
 114       uniform vec4 u_color;
 115       void main()
 116       {
 117         gl_FragColor = u_color;
 118       }
 119   );
 120
 121   GLuint program = GLTestHelper::LoadProgram(v_shader_str, f_shader_str);
 122   glUseProgram(program);
 123
 124   GLuint position_loc = glGetAttribLocation(program, "a_Position");
 125
 126   GLTestHelper::SetupUnitQuad(position_loc);
 127
 128   GLuint color_loc = glGetUniformLocation(program, "u_color");
 129   glUniform4f(
 130       color_loc,
 131       color[0] / 255.0f,
 132       color[1] / 255.0f,
 133       color[2] / 255.0f,
 134       color[3] / 255.0f);
 135 }
 136
 137 void TestDraw(int size) {
 138   uint8 expected_clear[] = { 127, 0, 255, 0, };
 139   glClearColor(0.5f, 0.0f, 1.0f, 0.0f);
 140   glClear(GL_COLOR_BUFFER_BIT);
 141   EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, size, size, 1, expected_clear));
 142   glDrawArrays(GL_TRIANGLES, 0, 6);
 143 }
 144
 145 }  // anonymous namespace
 146
 147 // http://crbug.com/281565
 148 TEST_F(GLVirtualContextsTest, Basic) {
 149   struct TestInfo {
 150     int size;
 151     uint8 color[4];
 152     GLManager* manager;
 153   };
 154   const int kNumTests = 3;
 155   TestInfo tests[] = {
 156     { kSize0, { 255, 0, 0, 0, }, &gl_real_, },
 157     { kSize1, { 0, 255, 0, 0, }, &gl1_, },
 158     { kSize2, { 0, 0, 255, 0, }, &gl2_, },
 159   };
 160
 161   for (int ii = 0; ii < kNumTests; ++ii) {
 162     const TestInfo& test = tests[ii];
 163     GLManager* gl_manager = test.manager;
 164     gl_manager->MakeCurrent();
 165     SetupSimpleShader(test.color);
 166   }
 167
 168   for (int ii = 0; ii < kNumTests; ++ii) {
 169     const TestInfo& test = tests[ii];
 170     GLManager* gl_manager = test.manager;
 171     gl_manager->MakeCurrent();
 172     TestDraw(test.size);
 173   }
 174
 175   for (int ii = 0; ii < kNumTests; ++ii) {
 176     const TestInfo& test = tests[ii];
 177     GLManager* gl_manager = test.manager;
 178     gl_manager->MakeCurrent();
 179     EXPECT_TRUE(GLTestHelper::CheckPixels(
 180         0, 0, test.size, test.size, 0, test.color));
 181   }
 182
 183   for (int ii = 0; ii < kNumTests; ++ii) {
 184     const TestInfo& test = tests[ii];
 185     GLManager* gl_manager = test.manager;
 186     gl_manager->MakeCurrent();
 187     GLTestHelper::CheckGLError("no errors", __LINE__);
 188   }
 189 }
 190
 191 // http://crbug.com/363407
 192 TEST_F(GLVirtualContextsTest, VertexArrayObjectRestore) {
 193   GLuint vao1 = 0, vao2 = 0;
 194
 195   gl1_.MakeCurrent();
 196   // Set up red quad in vao1.
 197   glGenVertexArraysOES(1, &vao1);
 198   glBindVertexArrayOES(vao1);
 199   SetUpColoredUnitQuad(kFloatRed);
 200   glFinish();
 201
 202   gl2_.MakeCurrent();
 203   // Set up green quad in vao2.
 204   glGenVertexArraysOES(1, &vao2);
 205   glBindVertexArrayOES(vao2);
 206   SetUpColoredUnitQuad(kFloatGreen);
 207   glFinish();
 208
 209   gl1_.MakeCurrent();
 210   // Test to ensure that vao1 is still the active VAO for this context.
 211   glDrawArrays(GL_TRIANGLES, 0, 6);
 212   EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, kSize1, kSize1, 0, kExpectedRed));
 213   glFinish();
 214   GLTestHelper::CheckGLError("no errors", __LINE__);
 215
 216   gl2_.MakeCurrent();
 217   // Test to ensure that vao2 is still the active VAO for this context.
 218   glDrawArrays(GL_TRIANGLES, 0, 6);
 219   EXPECT_TRUE(
 220       GLTestHelper::CheckPixels(0, 0, kSize2, kSize2, 0, kExpectedGreen));
 221   glFinish();
 222   GLTestHelper::CheckGLError("no errors", __LINE__);
 223 }
 224
 225 // http://crbug.com/363407
 226 TEST_F(GLVirtualContextsTest, VertexArrayObjectRestoreRebind) {
 227   GLuint vao1 = 0, vao2 = 0;
 228
 229   gl1_.MakeCurrent();
 230   // Set up red quad in vao1.
 231   glGenVertexArraysOES(1, &vao1);
 232   glBindVertexArrayOES(vao1);
 233   SetUpColoredUnitQuad(kFloatRed);
 234   glFinish();
 235
 236   gl2_.MakeCurrent();
 237   // Set up green quad in new vao2.
 238   glGenVertexArraysOES(1, &vao2);
 239   glBindVertexArrayOES(vao2);
 240   SetUpColoredUnitQuad(kFloatGreen);
 241   glFinish();
 242
 243   gl1_.MakeCurrent();
 244   // Test to ensure that vao1 hasn't been corrupted after rebinding.
 245   // Bind 0 is required so that bind vao1 is not optimized away in the service.
 246   glBindVertexArrayOES(0);
 247   glBindVertexArrayOES(vao1);
 248   glDrawArrays(GL_TRIANGLES, 0, 6);
 249   EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, kSize1, kSize1, 0, kExpectedRed));
 250   glFinish();
 251   GLTestHelper::CheckGLError("no errors", __LINE__);
 252
 253   gl2_.MakeCurrent();
 254   // Test to ensure that vao1 hasn't been corrupted after rebinding.
 255   // Bind 0 is required so that bind vao2 is not optimized away in the service.
 256   glBindVertexArrayOES(0);
 257   glBindVertexArrayOES(vao2);
 258   glDrawArrays(GL_TRIANGLES, 0, 6);
 259   EXPECT_TRUE(
 260       GLTestHelper::CheckPixels(0, 0, kSize2, kSize2, 0, kExpectedGreen));
 261   glFinish();
 262
 263   GLTestHelper::CheckGLError("no errors", __LINE__);
 264 }
 265
 266 // http://crbug.com/363407
 267 TEST_F(GLVirtualContextsTest, VertexArrayObjectRestoreDefault) {
 268   gl1_.MakeCurrent();
 269   // Set up red quad in default VAO.
 270   SetUpColoredUnitQuad(kFloatRed);
 271   glFinish();
 272
 273   gl2_.MakeCurrent();
 274   // Set up green quad in default VAO.
 275   SetUpColoredUnitQuad(kFloatGreen);
 276   glFinish();
 277
 278   // Gen & bind a non-default VAO.
 279   GLuint vao;
 280   glGenVertexArraysOES(1, &vao);
 281   glBindVertexArrayOES(vao);
 282   glFinish();
 283
 284   gl1_.MakeCurrent();
 285   // Test to ensure that default VAO on gl1_ is still valid.
 286   glDrawArrays(GL_TRIANGLES, 0, 6);
 287   EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, kSize1, kSize1, 0, kExpectedRed));
 288   glFinish();
 289
 290   gl2_.MakeCurrent();
 291   // Test to ensure that default VAO on gl2_ is still valid.
 292   // This tests that a default VAO is restored even when it's not currently
 293   // bound during the context switch.
 294   glBindVertexArrayOES(0);
 295   glDrawArrays(GL_TRIANGLES, 0, 6);
 296   EXPECT_TRUE(
 297       GLTestHelper::CheckPixels(0, 0, kSize2, kSize2, 0, kExpectedGreen));
 298   glFinish();
 299
 300   GLTestHelper::CheckGLError("no errors", __LINE__);
 301 }
 302
 303 }  // namespace gpu
 304