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

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• Hash : a7003d5f
  Author :
  Date : 2019-07-19T11:43:34
  

  Reland "EGL: Implement EGL_KHR_no_config_context"
  
  Add extension string and flag to all renderers that pass
  Modify eglCreateContext to accept EGL_NO_CONFIG
  Modify eglQueryContext per specification
  Modify eglMakeCurrent to bypass surface-context config compatibility checks
  Add check for client API
  Create new end2end test EGLNoConfigContextTest
  Disable on most renderers to prevent possible fail with future configs
  
  Bug: angleproject:3635
  Test: dEQP-EGL.functional.create_context.no_config*
        angle_end2end_tests --gtest_filter=EGLNoConfigContextTest*
  Change-Id: I88c1922a1e75afcc49922a9eccb4f1ae046c024a
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1806140
  Commit-Queue: Mohan Maiya <m.maiya@samsung.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  

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• src/tests/egl_tests/EGLNoConfigContextTest.cpp

• //
  // Copyright 2019 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.
  //
  // EGLNoConfigContectTest.cpp:
  //   EGL extension EGL_KHR_no_config_context allows a context to be created
  //   without a config specified. This means all surfaces are compatible.
  //   As a result compatibility checks are circumvented.
  //   This test suite creates and verifies creating a configless context
  //   and then verifies simple rendering to ensure compatibility.
  //
  
  #include <gtest/gtest.h>
  
  #include "test_utils/ANGLETest.h"
  
  using namespace angle;
  
  class EGLNoConfigContextTest : public ANGLETest
  {
    public:
      EGLNoConfigContextTest() : mDisplay(EGL_NO_DISPLAY), mContext(EGL_NO_CONTEXT) {}
  
      void testSetUp() override
      {
          int clientVersion = GetParam().majorVersion;
  
          EGLint dispattrs[] = {EGL_PLATFORM_ANGLE_TYPE_ANGLE, GetParam().getRenderer(), EGL_NONE};
          mDisplay           = eglGetPlatformDisplayEXT(
              EGL_PLATFORM_ANGLE_ANGLE, reinterpret_cast<void *>(EGL_DEFAULT_DISPLAY), dispattrs);
          EXPECT_TRUE(mDisplay != EGL_NO_DISPLAY);
          EXPECT_EGL_TRUE(eglInitialize(mDisplay, nullptr, nullptr));
  
          mExtensionSupported = IsEGLDisplayExtensionEnabled(mDisplay, "EGL_KHR_no_config_context");
          if (!mExtensionSupported)
          {
              return;  // Not supported, don't create context
          }
  
          EGLint ctxattrs[] = {EGL_CONTEXT_CLIENT_VERSION, clientVersion, EGL_NONE};
          mContext          = eglCreateContext(mDisplay, EGL_NO_CONFIG_KHR, nullptr, ctxattrs);
          EXPECT_TRUE(mContext != EGL_NO_CONTEXT);
      }
  
      void testTearDown() override
      {
          if (mDisplay != EGL_NO_DISPLAY)
          {
              if (mContext != EGL_NO_CONTEXT)
              {
                  eglDestroyContext(mDisplay, mContext);
                  mContext = EGL_NO_CONTEXT;
              }
              eglTerminate(mDisplay);
              eglReleaseThread();
          }
          ASSERT_EGL_SUCCESS() << "Error during test TearDown";
      }
  
      EGLDisplay mDisplay      = EGL_NO_DISPLAY;
      EGLContext mContext      = EGL_NO_CONTEXT;
      bool mExtensionSupported = false;
  };
  
  // Check that context has no config.
  TEST_P(EGLNoConfigContextTest, QueryConfigID)
  {
      ANGLE_SKIP_TEST_IF(!mExtensionSupported);
      EXPECT_TRUE(mDisplay);
      EXPECT_TRUE(mContext);
  
      EGLint configId = -1;
      EXPECT_EGL_TRUE(eglQueryContext(mDisplay, mContext, EGL_CONFIG_ID, &configId));
      EXPECT_TRUE(configId == 0);
      ASSERT_EGL_SUCCESS();
  }
  
  // Any surface should be eglMakeCurrent compatible with no-config context.
  // Do a glClear and glReadPixel to verify rendering.
  TEST_P(EGLNoConfigContextTest, RenderCheck)
  {
      ANGLE_SKIP_TEST_IF(!mExtensionSupported);
  
      // Get all the configs
      EGLint count;
      EXPECT_EGL_TRUE(eglGetConfigs(mDisplay, nullptr, 0, &count));
      EXPECT_TRUE(count > 0);
      std::vector<EGLConfig> configs(count);
      EXPECT_EGL_TRUE(eglGetConfigs(mDisplay, configs.data(), count, &count));
  
      // For each config, create PbufferSurface and do a render check
      EGLSurface surface = EGL_NO_SURFACE;
      for (auto config : configs)
      {
          const uint32_t kWidth  = 1;
          const uint32_t kHeight = 1;
  
          EGLint configId;
          EXPECT_EGL_TRUE(eglGetConfigAttrib(mDisplay, config, EGL_CONFIG_ID, &configId));
          EGLint surfattrs[] = {EGL_WIDTH, kWidth, EGL_HEIGHT, kHeight, EGL_NONE};
          surface            = eglCreatePbufferSurface(mDisplay, config, surfattrs);
          EXPECT_TRUE(surface != EGL_NO_SURFACE);
  
          EGLint bufferSize = 0;
          EXPECT_EGL_TRUE(eglGetConfigAttrib(mDisplay, config, EGL_BUFFER_SIZE, &bufferSize));
  
          EXPECT_EGL_TRUE(eglMakeCurrent(mDisplay, surface, surface, mContext));
          ASSERT_EGL_SUCCESS() << "eglMakeCurrent failed with Config: " << configId << '\n';
  
          // ClearColor RED
          glClearColor(1.0, 0.0, 0.0, 1.0);
          glClear(GL_COLOR_BUFFER_BIT);
          ASSERT_GL_NO_ERROR() << "glClear failed";
  
          if (bufferSize > 32)
          {  // GL_FLOAT configs
              EXPECT_PIXEL_COLOR32F_EQ(0, 0, kFloatRed);
          }
          else
          {  // GL_UNSIGNED_BYTE configs
              EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red);
          }
  
          eglDestroySurface(mDisplay, surface);
          surface = EGL_NO_SURFACE;
      }
  }
  
  ANGLE_INSTANTIATE_TEST(EGLNoConfigContextTest,
                         WithNoFixture(ES2_OPENGL()),
                         WithNoFixture(ES2_VULKAN()),
                         WithNoFixture(ES3_OPENGL()),
                         WithNoFixture(ES3_VULKAN()));
  

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