kc3-lang/angle/src/tests/egl_tests/EGLBackwardsCompatibleContextTest.cpp

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• Hash : 88de021d
  Author :
  Date : 2025-08-01T17:15:22
  

  tests: Skip PbufferDifferentConfig on system EGL
  
  Skip the test EGLBackwardsCompatibleContextTest.PbufferDifferentConfig
  when testing the system EGL, because not all platforms expose
  ANGLE-specific extensions.
  
  Bug: b/409384875
  Test: angle_end2end_tests \
      --gtest_filter=EGLBackwardsCompatibleContextTest.PbufferDifferentConfig/ES2_Vulkan_NoFixture
  Change-Id: I1556d7981d1e6c8c6fc1803cafcb76fa1052dcef
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6814161
  Commit-Queue: Tim Van Patten <timvp@google.com>
  Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com>
  Reviewed-by: Yuxin Hu <yuxinhu@google.com>
  

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• src/tests/egl_tests/EGLBackwardsCompatibleContextTest.cpp

• //
  // Copyright 2015 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // EGLBackwardsCompatibleContextTest.cpp.cpp:
  //   Coverage of the EGL_ANGLE_create_context_backwards_compatible extension
  
  #include <vector>
  
  #include "test_utils/ANGLETest.h"
  #include "test_utils/angle_test_configs.h"
  #include "test_utils/angle_test_instantiate.h"
  
  namespace angle
  {
  
  class EGLBackwardsCompatibleContextTest : public ANGLETest<>
  {
    public:
      EGLBackwardsCompatibleContextTest() : mDisplay(0) {}
  
      void testSetUp() override
      {
          EGLAttrib dispattrs[] = {EGL_PLATFORM_ANGLE_TYPE_ANGLE, GetParam().getRenderer(), EGL_NONE};
          mDisplay              = eglGetPlatformDisplay(GetEglPlatform(),
                                                        reinterpret_cast<void *>(EGL_DEFAULT_DISPLAY), dispattrs);
          ASSERT_TRUE(mDisplay != EGL_NO_DISPLAY);
  
          ASSERT_EGL_TRUE(eglInitialize(mDisplay, nullptr, nullptr));
  
          int configsCount = 0;
          ASSERT_EGL_TRUE(eglGetConfigs(mDisplay, nullptr, 0, &configsCount));
          ASSERT_TRUE(configsCount != 0);
  
          std::vector<EGLConfig> configs(configsCount);
          ASSERT_EGL_TRUE(eglGetConfigs(mDisplay, configs.data(), configsCount, &configsCount));
  
          for (auto config : configs)
          {
              EGLint surfaceType;
              eglGetConfigAttrib(mDisplay, config, EGL_SURFACE_TYPE, &surfaceType);
              if (surfaceType & EGL_PBUFFER_BIT)
              {
                  mConfig = config;
                  break;
              }
          }
          if (!mConfig)
          {
              mConfig = configs[0];
          }
          ASSERT_NE(nullptr, mConfig);
  
          EGLint surfaceType = EGL_NONE;
          eglGetConfigAttrib(mDisplay, mConfig, EGL_SURFACE_TYPE, &surfaceType);
          if (surfaceType & EGL_PBUFFER_BIT)
          {
              const EGLint pbufferAttribs[] = {
                  EGL_WIDTH, 500, EGL_HEIGHT, 500, EGL_NONE,
              };
              mPbuffer = eglCreatePbufferSurface(mDisplay, mConfig, pbufferAttribs);
              EXPECT_TRUE(mPbuffer != EGL_NO_SURFACE);
          }
      }
  
      void testTearDown() override
      {
          eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
  
          if (mPbuffer != EGL_NO_SURFACE)
          {
              eglDestroySurface(mDisplay, mPbuffer);
          }
  
          eglTerminate(mDisplay);
      }
  
      EGLDisplay mDisplay = EGL_NO_DISPLAY;
      EGLSurface mPbuffer = EGL_NO_SURFACE;
      EGLConfig mConfig   = 0;
  };
  
  // Test extension presence.  All backends should expose this extension
  TEST_P(EGLBackwardsCompatibleContextTest, PbufferDifferentConfig)
  {
      // The system EGL may not expose ANGLE-specific extensions, which is not a failure.
      ANGLE_SKIP_TEST_IF(isDriverSystemEgl());
  
      EXPECT_TRUE(
          IsEGLDisplayExtensionEnabled(mDisplay, "EGL_ANGLE_create_context_backwards_compatible"));
  }
  
  // Test that disabling backwards compatibility will always return the expected context version
  TEST_P(EGLBackwardsCompatibleContextTest, BackwardsCompatibleDisbled)
  {
      ANGLE_SKIP_TEST_IF(
          !IsEGLDisplayExtensionEnabled(mDisplay, "EGL_ANGLE_create_context_backwards_compatible"));
      ANGLE_SKIP_TEST_IF(!mPbuffer);
  
      std::pair<EGLint, EGLint> testVersions[] = {
          {1, 0}, {1, 1}, {2, 0}, {3, 0}, {3, 1}, {3, 2},
      };
  
      for (const auto &version : testVersions)
      {
          EGLint attribs[] = {EGL_CONTEXT_MAJOR_VERSION,
                              version.first,
                              EGL_CONTEXT_MINOR_VERSION,
                              version.second,
                              EGL_CONTEXT_OPENGL_BACKWARDS_COMPATIBLE_ANGLE,
                              EGL_FALSE,
                              EGL_NONE,
                              EGL_NONE};
  
          EGLContext context = eglCreateContext(mDisplay, mConfig, nullptr, attribs);
          if (context == EGL_NO_CONTEXT)
          {
              // Context version not supported
              continue;
          }
  
          ASSERT_EGL_TRUE(eglMakeCurrent(mDisplay, mPbuffer, mPbuffer, context));
  
          auto contextVersion = GetCurrentContextVersion();
          EXPECT_EQ(version, contextVersion);
  
          ASSERT_EGL_TRUE(eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT));
          eglDestroyContext(mDisplay, context);
      }
  }
  
  // Test that if it's possible to create an ES3 context, requesting an ES2 context should return an
  // ES3 context as well
  TEST_P(EGLBackwardsCompatibleContextTest, BackwardsCompatibleEnabledES3)
  {
      ANGLE_SKIP_TEST_IF(
          !IsEGLDisplayExtensionEnabled(mDisplay, "EGL_ANGLE_create_context_backwards_compatible"));
      ANGLE_SKIP_TEST_IF(!mPbuffer);
  
      EGLint es3ContextAttribs[] = {
          EGL_CONTEXT_MAJOR_VERSION, 3, EGL_CONTEXT_MINOR_VERSION, 0, EGL_NONE, EGL_NONE};
  
      EGLContext es3Context = eglCreateContext(mDisplay, mConfig, nullptr, es3ContextAttribs);
      ANGLE_SKIP_TEST_IF(es3Context == EGL_NO_CONTEXT);
  
      ASSERT_EGL_TRUE(eglMakeCurrent(mDisplay, mPbuffer, mPbuffer, es3Context));
      auto es3ContextVersion = GetCurrentContextVersion();
      eglDestroyContext(mDisplay, es3Context);
  
      EGLint es2ContextAttribs[] = {
          EGL_CONTEXT_MAJOR_VERSION, 2, EGL_CONTEXT_MINOR_VERSION, 0, EGL_NONE, EGL_NONE};
  
      EGLContext es2Context = eglCreateContext(mDisplay, mConfig, nullptr, es2ContextAttribs);
      EXPECT_NE(es2Context, EGL_NO_CONTEXT);
  
      ASSERT_EGL_TRUE(eglMakeCurrent(mDisplay, mPbuffer, mPbuffer, es2Context));
      auto es2ContextVersion = GetCurrentContextVersion();
      ASSERT_EGL_TRUE(eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT));
      eglDestroyContext(mDisplay, es2Context);
  
      EXPECT_EQ(es3ContextVersion, es2ContextVersion);
  }
  
  // Test that if ES1.1 is supported and a 1.0 context is requested, an ES 1.1 context is returned
  TEST_P(EGLBackwardsCompatibleContextTest, BackwardsCompatibleEnabledES1)
  {
      ANGLE_SKIP_TEST_IF(
          !IsEGLDisplayExtensionEnabled(mDisplay, "EGL_ANGLE_create_context_backwards_compatible"));
      ANGLE_SKIP_TEST_IF(!mPbuffer);
  
      EGLint es11ContextAttribs[] = {
          EGL_CONTEXT_MAJOR_VERSION, 1, EGL_CONTEXT_MINOR_VERSION, 1, EGL_NONE, EGL_NONE};
  
      EGLContext es11Context = eglCreateContext(mDisplay, mConfig, nullptr, es11ContextAttribs);
      ANGLE_SKIP_TEST_IF(es11Context == EGL_NO_CONTEXT);
  
      ASSERT_EGL_TRUE(eglMakeCurrent(mDisplay, mPbuffer, mPbuffer, es11Context));
      auto es11ContextVersion = GetCurrentContextVersion();
      ASSERT_EQ(std::make_pair(1, 1), es11ContextVersion);
      ASSERT_EGL_TRUE(eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT));
      eglDestroyContext(mDisplay, es11Context);
  
      EGLint es10ContextAttribs[] = {
          EGL_CONTEXT_MAJOR_VERSION, 1, EGL_CONTEXT_MINOR_VERSION, 0, EGL_NONE, EGL_NONE};
  
      EGLContext es10Context = eglCreateContext(mDisplay, mConfig, nullptr, es10ContextAttribs);
      EXPECT_NE(es10Context, EGL_NO_CONTEXT);
  
      ASSERT_EGL_TRUE(eglMakeCurrent(mDisplay, mPbuffer, mPbuffer, es10Context));
      auto es10ContextVersion = GetCurrentContextVersion();
      ASSERT_EQ(std::make_pair(1, 1), es10ContextVersion);
      ASSERT_EGL_TRUE(eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT));
      eglDestroyContext(mDisplay, es10Context);
  }
  
  ANGLE_INSTANTIATE_TEST(EGLBackwardsCompatibleContextTest,
                         WithNoFixture(ES2_D3D9()),
                         WithNoFixture(ES2_D3D11()),
                         WithNoFixture(ES2_METAL()),
                         WithNoFixture(ES2_OPENGL()),
                         WithNoFixture(ES2_OPENGLES()),
                         WithNoFixture(ES2_VULKAN()));
  
  }  // namespace angle
  

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