EGLContextSharingTest.cpp

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Author : Stuart Morgan
Date : 2019-08-14 12:25:12
Hash : 9d737966
Message : Standardize copyright notices to project style For all "ANGLE Project" copyrights, standardize to the format specified by the style guide. Changes: - "Copyright (c)" and "Copyright(c)" changed to just "Copyright". - Removed the second half of date ranges ("Y1Y1-Y2Y2"->"Y1Y1"). - Fixed a small number of files that had no copyright date using the initial commit year from the version control history. - Fixed one instance of copyright being "The ANGLE Project" rather than "The ANGLE Project Authors" These changes are applied both to the copyright of source file, and where applicable to copyright statements that are generated by templates. BUG=angleproject:3811 Change-Id: I973dd65e4ef9deeba232d5be74c768256a0eb2e5 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1754397 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>

src/tests/egl_tests/EGLContextSharingTest.cpp

//
// Copyright 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 testTearDown() 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();
    }

    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 (!IsEGLDisplayExtensionEnabled(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 (!IsEGLDisplayExtensionEnabled(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 (!IsEGLDisplayExtensionEnabled(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());

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

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