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

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• Hash : ba319ba3
  Author :
  Date : 2018-12-29T10:29:33
  

  Re-land "Load entry points dynamically in tests and samples."
  
  Fixes the Android/ChromeOS/Fuchsia builds by using consistent EGL
  headers.
  
  This CL adds a dynamic loader generator based on XML files. It also
  refactors the entry point generation script to move the XML parsing
  into a helper class.
  
  Additionally this includes a new GLES 1.0 base header. The new
  header allows for function pointer types and hiding prototypes.
  
  All tests and samples now load ANGLE dynamically. In the future this
  will be extended to load entry points from the driver directly when
  possible. This will allow us to perform more accurate A/B testing.
  
  The new build configuration leads to some tests having more warnings
  applied. The CL includes fixes for the new warnings.
  
  Bug: angleproject:2995
  Change-Id: I5a8772f41a0f89570b3736b785f44b7de1539b57
  Reviewed-on: https://chromium-review.googlesource.com/c/1392382
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/tests/egl_tests/EGLContextSharingTest.cpp

• //
  // Copyright (c) 2016 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.
  //
  // EGLContextSharingTest.cpp:
  //   Tests relating to shared Contexts.
  
  #include <gtest/gtest.h>
  
  #include "test_utils/ANGLETest.h"
  #include "test_utils/angle_test_configs.h"
  #include "util/EGLWindow.h"
  
  using namespace angle;
  
  namespace
  {
  
  EGLBoolean SafeDestroyContext(EGLDisplay display, EGLContext &context)
  {
      EGLBoolean result = EGL_TRUE;
      if (context != EGL_NO_CONTEXT)
      {
          result  = eglDestroyContext(display, context);
          context = EGL_NO_CONTEXT;
      }
      return result;
  }
  
  class EGLContextSharingTest : public ANGLETest
  {
    public:
      EGLContextSharingTest() : mContexts{EGL_NO_CONTEXT, EGL_NO_CONTEXT}, mTexture(0) {}
  
      void TearDown() override
      {
          glDeleteTextures(1, &mTexture);
  
          EGLDisplay display = getEGLWindow()->getDisplay();
  
          if (display != EGL_NO_DISPLAY)
          {
              for (auto &context : mContexts)
              {
                  SafeDestroyContext(display, context);
              }
          }
  
          // Set default test state to not give an error on shutdown.
          getEGLWindow()->makeCurrent();
  
          ANGLETest::TearDown();
      }
  
      EGLContext mContexts[2];
      GLuint mTexture;
  };
  
  // Tests that creating resources works after freeing the share context.
  TEST_P(EGLContextSharingTest, BindTextureAfterShareContextFree)
  {
      EGLDisplay display = getEGLWindow()->getDisplay();
      EGLConfig config   = getEGLWindow()->getConfig();
      EGLSurface surface = getEGLWindow()->getSurface();
  
      const EGLint contextAttribs[] = {EGL_CONTEXT_CLIENT_VERSION,
                                       getEGLWindow()->getClientMajorVersion(), EGL_NONE};
  
      mContexts[0] = eglCreateContext(display, config, nullptr, contextAttribs);
      ASSERT_EGL_SUCCESS();
      ASSERT_TRUE(mContexts[0] != EGL_NO_CONTEXT);
      mContexts[1] = eglCreateContext(display, config, mContexts[1], contextAttribs);
      ASSERT_EGL_SUCCESS();
      ASSERT_TRUE(mContexts[1] != EGL_NO_CONTEXT);
  
      ASSERT_EGL_TRUE(SafeDestroyContext(display, mContexts[0]));
      ASSERT_EGL_TRUE(eglMakeCurrent(display, surface, surface, mContexts[1]));
      ASSERT_EGL_SUCCESS();
  
      glGenTextures(1, &mTexture);
      glBindTexture(GL_TEXTURE_2D, mTexture);
      ASSERT_GL_NO_ERROR();
  }
  
  // Tests the creation of contexts using EGL_ANGLE_display_texture_share_group
  TEST_P(EGLContextSharingTest, DisplayShareGroupContextCreation)
  {
      EGLDisplay display = getEGLWindow()->getDisplay();
      EGLConfig config   = getEGLWindow()->getConfig();
  
      const EGLint inShareGroupContextAttribs[] = {
          EGL_CONTEXT_CLIENT_VERSION, 2, EGL_DISPLAY_TEXTURE_SHARE_GROUP_ANGLE, EGL_TRUE, EGL_NONE};
  
      // Test creating two contexts in the global share group
      mContexts[0] = eglCreateContext(display, config, nullptr, inShareGroupContextAttribs);
      mContexts[1] = eglCreateContext(display, config, mContexts[1], inShareGroupContextAttribs);
  
      if (!ANGLETest::eglDisplayExtensionEnabled(display, "EGL_ANGLE_display_texture_share_group"))
      {
          // Make sure an error is generated and early-exit
          ASSERT_EGL_ERROR(EGL_BAD_ATTRIBUTE);
          ASSERT_EQ(EGL_NO_CONTEXT, mContexts[0]);
          return;
      }
  
      ASSERT_EGL_SUCCESS();
  
      ASSERT_NE(EGL_NO_CONTEXT, mContexts[0]);
      ASSERT_NE(EGL_NO_CONTEXT, mContexts[1]);
      eglDestroyContext(display, mContexts[0]);
  
      // Try creating a context that is not in the global share group but tries to share with a
      // context that is
      const EGLint notInShareGroupContextAttribs[] = {
          EGL_CONTEXT_CLIENT_VERSION, 2, EGL_DISPLAY_TEXTURE_SHARE_GROUP_ANGLE, EGL_FALSE, EGL_NONE};
      mContexts[1] = eglCreateContext(display, config, mContexts[1], notInShareGroupContextAttribs);
      ASSERT_EGL_ERROR(EGL_BAD_ATTRIBUTE);
      ASSERT_TRUE(mContexts[1] == EGL_NO_CONTEXT);
  }
  
  // Tests the sharing of textures using EGL_ANGLE_display_texture_share_group
  TEST_P(EGLContextSharingTest, DisplayShareGroupObjectSharing)
  {
      EGLDisplay display = getEGLWindow()->getDisplay();
      if (!ANGLETest::eglDisplayExtensionEnabled(display, "EGL_ANGLE_display_texture_share_group"))
      {
          std::cout << "Test skipped because EGL_ANGLE_display_texture_share_group is not present."
                    << std::endl;
          return;
      }
  
      EGLConfig config   = getEGLWindow()->getConfig();
      EGLSurface surface = getEGLWindow()->getSurface();
  
      const EGLint inShareGroupContextAttribs[] = {
          EGL_CONTEXT_CLIENT_VERSION, 2, EGL_DISPLAY_TEXTURE_SHARE_GROUP_ANGLE, EGL_TRUE, EGL_NONE};
  
      // Create two contexts in the global share group but not in the same context share group
      mContexts[0] = eglCreateContext(display, config, nullptr, inShareGroupContextAttribs);
      mContexts[1] = eglCreateContext(display, config, nullptr, inShareGroupContextAttribs);
  
      ASSERT_EGL_SUCCESS();
  
      ASSERT_NE(EGL_NO_CONTEXT, mContexts[0]);
      ASSERT_NE(EGL_NO_CONTEXT, mContexts[1]);
  
      ASSERT_EGL_TRUE(eglMakeCurrent(display, surface, surface, mContexts[0]));
      ASSERT_EGL_SUCCESS();
  
      // Create a texture and buffer in ctx 0
      GLuint textureFromCtx0 = 0;
      glGenTextures(1, &textureFromCtx0);
      glBindTexture(GL_TEXTURE_2D, textureFromCtx0);
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
      glBindTexture(GL_TEXTURE_2D, 0);
      ASSERT_GL_TRUE(glIsTexture(textureFromCtx0));
  
      GLuint bufferFromCtx0 = 0;
      glGenBuffers(1, &bufferFromCtx0);
      glBindBuffer(GL_ARRAY_BUFFER, bufferFromCtx0);
      glBufferData(GL_ARRAY_BUFFER, 1, nullptr, GL_STATIC_DRAW);
      glBindBuffer(GL_ARRAY_BUFFER, 0);
      ASSERT_GL_TRUE(glIsBuffer(bufferFromCtx0));
  
      ASSERT_GL_NO_ERROR();
  
      // Switch to context 1 and verify that the texture is accessible but the buffer is not
      ASSERT_EGL_TRUE(eglMakeCurrent(display, surface, surface, mContexts[1]));
      ASSERT_EGL_SUCCESS();
  
      ASSERT_GL_TRUE(glIsTexture(textureFromCtx0));
  
      ASSERT_GL_FALSE(glIsBuffer(bufferFromCtx0));
      glDeleteBuffers(1, &bufferFromCtx0);
      ASSERT_GL_NO_ERROR();
  
      // Call readpixels on the texture to verify that the backend has proper support
      GLuint fbo = 0;
      glGenFramebuffers(1, &fbo);
      glBindFramebuffer(GL_FRAMEBUFFER, fbo);
      glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textureFromCtx0, 0);
  
      GLubyte pixel[4];
      glReadPixels(0, 0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixel);
      ASSERT_GL_NO_ERROR();
  
      glDeleteFramebuffers(1, &fbo);
  
      glDeleteTextures(1, &textureFromCtx0);
      ASSERT_GL_NO_ERROR();
      ASSERT_GL_FALSE(glIsTexture(textureFromCtx0));
  
      // Switch back to context 0 and delete the buffer
      ASSERT_EGL_TRUE(eglMakeCurrent(display, surface, surface, mContexts[0]));
      ASSERT_EGL_SUCCESS();
  
      ASSERT_GL_TRUE(glIsBuffer(bufferFromCtx0));
      glDeleteBuffers(1, &bufferFromCtx0);
      ASSERT_GL_NO_ERROR();
  }
  
  // Tests that shared textures using EGL_ANGLE_display_texture_share_group are released when the last
  // context is destroyed
  TEST_P(EGLContextSharingTest, DisplayShareGroupReleasedWithLastContext)
  {
      EGLDisplay display = getEGLWindow()->getDisplay();
      if (!ANGLETest::eglDisplayExtensionEnabled(display, "EGL_ANGLE_display_texture_share_group"))
      {
          std::cout << "Test skipped because EGL_ANGLE_display_texture_share_group is not present."
                    << std::endl;
          return;
      }
  
      EGLConfig config   = getEGLWindow()->getConfig();
      EGLSurface surface = getEGLWindow()->getSurface();
  
      const EGLint inShareGroupContextAttribs[] = {
          EGL_CONTEXT_CLIENT_VERSION, 2, EGL_DISPLAY_TEXTURE_SHARE_GROUP_ANGLE, EGL_TRUE, EGL_NONE};
  
      // Create two contexts in the global share group but not in the same context share group
      mContexts[0] = eglCreateContext(display, config, nullptr, inShareGroupContextAttribs);
      mContexts[1] = eglCreateContext(display, config, nullptr, inShareGroupContextAttribs);
  
      // Create a texture and buffer in ctx 0
      ASSERT_EGL_TRUE(eglMakeCurrent(display, surface, surface, mContexts[0]));
      GLuint textureFromCtx0 = 0;
      glGenTextures(1, &textureFromCtx0);
      glBindTexture(GL_TEXTURE_2D, textureFromCtx0);
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
      glBindTexture(GL_TEXTURE_2D, 0);
      ASSERT_GL_TRUE(glIsTexture(textureFromCtx0));
  
      // Switch to context 1 and verify that the texture is accessible
      ASSERT_EGL_TRUE(eglMakeCurrent(display, surface, surface, mContexts[1]));
      ASSERT_GL_TRUE(glIsTexture(textureFromCtx0));
  
      // Destroy both contexts, the texture should be cleaned up automatically
      ASSERT_EGL_TRUE(eglDestroyContext(display, mContexts[0]));
      ASSERT_EGL_TRUE(eglDestroyContext(display, mContexts[1]));
  
      // Create a new context and verify it cannot access the texture previously created
      mContexts[0] = eglCreateContext(display, config, nullptr, inShareGroupContextAttribs);
  
      ASSERT_GL_FALSE(glIsTexture(textureFromCtx0));
  }
  
  }  // anonymous namespace
  
  ANGLE_INSTANTIATE_TEST(EGLContextSharingTest,
                         ES2_D3D9(),
                         ES2_D3D11(),
                         ES3_D3D11(),
                         ES2_OPENGL(),
                         ES3_OPENGL(),
                         ES2_VULKAN());
  

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