gl_unittest.cc 5.0 KB

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  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. #include <GLES2/gl2.h>
  5. #include <GLES2/gl2ext.h>
  6. #include <stdint.h>
  7. #include <memory>
  8. #include "gpu/command_buffer/service/feature_info.h"
  9. #include "gpu/command_buffer/tests/gl_manager.h"
  10. #include "gpu/command_buffer/tests/gl_test_utils.h"
  11. #include "testing/gmock/include/gmock/gmock.h"
  12. #include "testing/gtest/include/gtest/gtest.h"
  13. namespace gpu {
  14. class GLTest : public testing::Test {
  15. protected:
  16. void SetUp() override { gl_.Initialize(GLManager::Options()); }
  17. void TearDown() override { gl_.Destroy(); }
  18. GLManager gl_;
  19. };
  20. // Test that GL is at least minimally working.
  21. TEST_F(GLTest, Basic) {
  22. glClearColor(0.0f, 1.0f, 0.0f, 1.0f);
  23. glClear(GL_COLOR_BUFFER_BIT);
  24. uint8_t expected[] = {
  25. 0, 255, 0, 255,
  26. };
  27. EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 1, 1, 0, expected, nullptr));
  28. GLTestHelper::CheckGLError("no errors", __LINE__);
  29. }
  30. TEST_F(GLTest, BasicFBO) {
  31. GLuint tex = 0;
  32. glGenTextures(1, &tex);
  33. GLuint fbo = 0;
  34. glGenFramebuffers(1, &fbo);
  35. glBindTexture(GL_TEXTURE_2D, tex);
  36. std::unique_ptr<uint8_t[]> pixels(new uint8_t[16 * 16 * 4]);
  37. memset(pixels.get(), 0, 16*16*4);
  38. glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE,
  39. pixels.get());
  40. glGenerateMipmap(GL_TEXTURE_2D);
  41. glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
  42. glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
  43. glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
  44. glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
  45. glBindFramebuffer(GL_FRAMEBUFFER, fbo);
  46. glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
  47. tex, 0);
  48. EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE),
  49. glCheckFramebufferStatus(GL_FRAMEBUFFER));
  50. glClearColor(0.0f, 1.0f, 0.0f, 1.0f);
  51. glClear(GL_COLOR_BUFFER_BIT);
  52. uint8_t expected[] = {
  53. 0, 255, 0, 255,
  54. };
  55. EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 16, 16, 0, expected, nullptr));
  56. glDeleteFramebuffers(1, &fbo);
  57. glDeleteTextures(1, &tex);
  58. GLTestHelper::CheckGLError("no errors", __LINE__);
  59. }
  60. TEST_F(GLTest, SimpleShader) {
  61. static const char* v_shader_str =
  62. "attribute vec4 a_Position;\n"
  63. "void main()\n"
  64. "{\n"
  65. " gl_Position = a_Position;\n"
  66. "}\n";
  67. static const char* f_shader_str =
  68. "precision mediump float;\n"
  69. "void main()\n"
  70. "{\n"
  71. " gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);\n"
  72. "}\n";
  73. GLuint program = GLTestHelper::LoadProgram(v_shader_str, f_shader_str);
  74. glUseProgram(program);
  75. GLuint position_loc = glGetAttribLocation(program, "a_Position");
  76. GLTestHelper::SetupUnitQuad(position_loc);
  77. uint8_t expected_clear[] = {
  78. 127, 0, 255, 0,
  79. };
  80. glClearColor(0.5f, 0.0f, 1.0f, 0.0f);
  81. glClear(GL_COLOR_BUFFER_BIT);
  82. EXPECT_TRUE(
  83. GLTestHelper::CheckPixels(0, 0, 1, 1, 1, expected_clear, nullptr));
  84. uint8_t expected_draw[] = {
  85. 0, 255, 0, 255,
  86. };
  87. glDrawArrays(GL_TRIANGLES, 0, 6);
  88. EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 1, 1, 0, expected_draw, nullptr));
  89. }
  90. TEST_F(GLTest, FeatureFlagsMatchCapabilities) {
  91. scoped_refptr<gles2::FeatureInfo> features =
  92. new gles2::FeatureInfo(gl_.workarounds(), GpuFeatureInfo());
  93. features->InitializeForTesting();
  94. const auto& caps = gl_.GetCapabilities();
  95. const auto& flags = features->feature_flags();
  96. EXPECT_EQ(caps.egl_image_external, flags.oes_egl_image_external);
  97. EXPECT_EQ(caps.texture_format_bgra8888, flags.ext_texture_format_bgra8888);
  98. EXPECT_EQ(caps.texture_format_etc1, flags.oes_compressed_etc1_rgb8_texture);
  99. EXPECT_EQ(caps.texture_rectangle, flags.arb_texture_rectangle);
  100. EXPECT_EQ(caps.texture_usage, flags.angle_texture_usage);
  101. EXPECT_EQ(caps.texture_storage, flags.ext_texture_storage);
  102. EXPECT_EQ(caps.discard_framebuffer, flags.ext_discard_framebuffer);
  103. EXPECT_EQ(caps.sync_query, flags.chromium_sync_query);
  104. EXPECT_EQ(caps.blend_equation_advanced, flags.blend_equation_advanced);
  105. EXPECT_EQ(caps.blend_equation_advanced_coherent,
  106. flags.blend_equation_advanced_coherent);
  107. EXPECT_EQ(caps.texture_rg, flags.ext_texture_rg);
  108. EXPECT_EQ(caps.image_ycbcr_422, flags.chromium_image_ycbcr_422);
  109. EXPECT_EQ(caps.image_ycbcr_420v, flags.chromium_image_ycbcr_420v);
  110. EXPECT_EQ(caps.image_ar30, flags.chromium_image_ar30);
  111. EXPECT_EQ(caps.image_ab30, flags.chromium_image_ab30);
  112. EXPECT_EQ(caps.image_ycbcr_p010, flags.chromium_image_ycbcr_p010);
  113. EXPECT_EQ(caps.render_buffer_format_bgra8888,
  114. flags.ext_render_buffer_format_bgra8888);
  115. EXPECT_EQ(caps.occlusion_query_boolean, flags.occlusion_query_boolean);
  116. }
  117. TEST_F(GLTest, GetString) {
  118. EXPECT_STREQ(
  119. "OpenGL ES 2.0 Chromium",
  120. reinterpret_cast<const char*>(glGetString(GL_VERSION)));
  121. EXPECT_STREQ(
  122. "OpenGL ES GLSL ES 1.0 Chromium",
  123. reinterpret_cast<const char*>(glGetString(GL_SHADING_LANGUAGE_VERSION)));
  124. }
  125. } // namespace gpu