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

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• Hash : dcbcee8a
  Author :
  Date : 2025-05-15T10:39:55
  

  Tests: Use eglGetPlatformDisplay()
  
  From the EGL 1.5 spec:
  
    Appendix F
    Version 1.5
  
    EGL version 1.5 was voted out of the Khronos Technical Working Group
    on January 31, 2014, and formally approved by the Khronos Board of
    Promoters on March 14, 2014.
    EGL 1.5 is the sixth release of EGL. It introduces the following new
    features (the EGL extension(s) each feature is based on are also shown
    parenthetically):
    * Platform support:
      – Providing a mechanism for support of multiple platforms (such as
      window systems or offscreen rendering frameworks) in a single EGL
      implementation at runtime (EGL_EXT_platform_base).
  
  Many tests use eglGetPlatformDisplayEXT() which is provided by the EGL
  extension EGL_EXT_platform_base. With the promotion of the
  EGL_EXT_platform_base functions to core EGL in version 1.5 and ANGLE
  supporting EGL 1.5 (as of at least 2019), update the calls to use
  eglGetPlatformDisplay().
  
  This is in preparation for running the ANGLE end2end tests in Android,
  which only exposes the EGL 1.5 functions, and not the
  EGL_EXT_platform_base functions.
  
  Bug: b/391967165
  Test: angle_end2end_tests
  Change-Id: I58109c3afe270f46db952e124ee3f5c11200ca35
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6552257
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com>
  Commit-Queue: Tim Van Patten <timvp@google.com>
  

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• src/tests/egl_tests/EGLWaylandTest.cpp

• //
  // Copyright 2022 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.
  //
  
  // EGLWaylandTest.cpp: tests for EGL_EXT_platform_wayland
  
  #include <gtest/gtest.h>
  
  #include <EGL/egl.h>
  #include <EGL/eglext.h>
  #include <wayland-client.h>
  #include <wayland-egl-backend.h>
  
  #include "test_utils/ANGLETest.h"
  #include "util/linux/wayland/WaylandWindow.h"
  
  using namespace angle;
  
  namespace
  {
  const EGLint contextAttribs[] = {EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE};
  }
  
  class EGLWaylandTest : public ANGLETest<>
  {
    public:
      std::vector<EGLAttrib> getDisplayAttributes() const
      {
          std::vector<EGLAttrib> attribs;
  
          attribs.push_back(EGL_PLATFORM_ANGLE_TYPE_ANGLE);
          attribs.push_back(GetParam().getRenderer());
          attribs.push_back(EGL_NONE);
  
          return attribs;
      }
  
      void testSetUp() override
      {
          mOsWindow = WaylandWindow::New();
          ASSERT_TRUE(mOsWindow->initialize("EGLWaylandTest", 500, 500));
          setWindowVisible(mOsWindow, true);
  
          EGLNativeDisplayType waylandDisplay = mOsWindow->getNativeDisplay();
          std::vector<EGLAttrib> attribs      = getDisplayAttributes();
          mDisplay =
              eglGetPlatformDisplay(EGL_PLATFORM_ANGLE_ANGLE, (void *)waylandDisplay, attribs.data());
          ASSERT_NE(EGL_NO_DISPLAY, mDisplay);
  
          ASSERT_TRUE(EGL_TRUE == eglInitialize(mDisplay, nullptr, nullptr));
  
          int nConfigs = 0;
          ASSERT_TRUE(EGL_TRUE == eglGetConfigs(mDisplay, nullptr, 0, &nConfigs));
          ASSERT_GE(nConfigs, 1);
  
          int nReturnedConfigs = 0;
          mConfigs.resize(nConfigs);
          ASSERT_TRUE(EGL_TRUE ==
                      eglGetConfigs(mDisplay, mConfigs.data(), nConfigs, &nReturnedConfigs));
          ASSERT_EQ(nConfigs, nReturnedConfigs);
      }
  
      void testTearDown() override
      {
          mConfigs.clear();
          eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
          eglTerminate(mDisplay);
          OSWindow::Delete(&mOsWindow);
      }
  
      OSWindow *mOsWindow;
      EGLDisplay mDisplay;
      std::vector<EGLConfig> mConfigs;
  };
  
  // Test that a Wayland window can be created and used for rendering
  TEST_P(EGLWaylandTest, WaylandWindowRendering)
  {
      for (EGLConfig config : mConfigs)
      {
          // Finally, try to do a clear on the window.
          EGLContext context = eglCreateContext(mDisplay, config, EGL_NO_CONTEXT, contextAttribs);
          ASSERT_NE(EGL_NO_CONTEXT, context);
  
          EGLSurface window =
              eglCreateWindowSurface(mDisplay, config, mOsWindow->getNativeWindow(), nullptr);
          ASSERT_EGL_SUCCESS();
  
          eglMakeCurrent(mDisplay, window, window, context);
          ASSERT_EGL_SUCCESS();
  
          glViewport(0, 0, 500, 500);
          glClearColor(0.0f, 0.0f, 1.0f, 1.0f);
          glClear(GL_COLOR_BUFFER_BIT);
          ASSERT_GL_NO_ERROR();
          EXPECT_PIXEL_EQ(250, 250, 0, 0, 255, 255);
  
          // Teardown
          eglDestroySurface(mDisplay, window);
          ASSERT_EGL_SUCCESS();
  
          eglDestroyContext(mDisplay, context);
          ASSERT_EGL_SUCCESS();
  
          eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
          ASSERT_EGL_SUCCESS();
      }
  }
  
  // Test that a Wayland window can swap buffers multiple times with no issues
  TEST_P(EGLWaylandTest, SwapBuffers)
  {
      for (EGLConfig config : mConfigs)
      {
          EGLContext context = eglCreateContext(mDisplay, config, EGL_NO_CONTEXT, contextAttribs);
          ASSERT_NE(EGL_NO_CONTEXT, context);
  
          EGLSurface surface =
              eglCreateWindowSurface(mDisplay, config, mOsWindow->getNativeWindow(), nullptr);
          ASSERT_EGL_SUCCESS();
  
          eglMakeCurrent(mDisplay, surface, surface, context);
          ASSERT_EGL_SUCCESS();
  
          const uint32_t loopcount = 16;
          for (uint32_t i = 0; i < loopcount; i++)
          {
              mOsWindow->messageLoop();
  
              glViewport(0, 0, 500, 500);
              glClearColor(0.0f, 0.0f, 1.0f, 1.0f);
              glClear(GL_COLOR_BUFFER_BIT);
              ASSERT_GL_NO_ERROR() << "glClear failed";
              EXPECT_PIXEL_EQ(250, 250, 0, 0, 255, 255);
  
              eglSwapBuffers(mDisplay, surface);
              ASSERT_EGL_SUCCESS() << "eglSwapBuffers failed.";
          }
  
          // Teardown
          eglDestroySurface(mDisplay, surface);
          ASSERT_EGL_SUCCESS();
  
          eglDestroyContext(mDisplay, context);
          ASSERT_EGL_SUCCESS();
  
          eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
          ASSERT_EGL_SUCCESS();
      }
  }
  
  ANGLE_INSTANTIATE_TEST(EGLWaylandTest, WithNoFixture(ES2_VULKAN()));
  

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