EGLBackwardsCompatibleContextTest.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/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
{

namespace
{
std::pair<EGLint, EGLint> GetCurrentContextVersion()
{
    const char *versionString = reinterpret_cast<const char *>(glGetString(GL_VERSION));
    EXPECT_TRUE(strstr(versionString, "OpenGL ES") != nullptr);
    return {versionString[10] - '0', versionString[12] - '0'};
}
}  // anonymous namespace

class EGLBackwardsCompatibleContextTest : public ANGLETest
{
  public:
    EGLBackwardsCompatibleContextTest() : mDisplay(0) {}

    void testSetUp() override
    {
        EGLint dispattrs[] = {EGL_PLATFORM_ANGLE_TYPE_ANGLE, GetParam().getRenderer(), EGL_NONE};
        mDisplay           = eglGetPlatformDisplayEXT(
            EGL_PLATFORM_ANGLE_ANGLE, 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;
            }
        }
        ASSERT_NE(nullptr, mConfig);

        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)
{
    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"));

    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);

        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"));
    // TODO(anglebug.com/3750): Re-evaluate when Vulkan can return 3.0 contexts
    ANGLE_SKIP_TEST_IF(isVulkanRenderer());

    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();
    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"));

    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);
    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);
    eglDestroyContext(mDisplay, es10Context);
}

ANGLE_INSTANTIATE_TEST(EGLBackwardsCompatibleContextTest,
                       WithNoFixture(ES2_D3D9()),
                       WithNoFixture(ES2_D3D11()),
                       WithNoFixture(ES2_OPENGL()),
                       WithNoFixture(ES2_OPENGLES()),
                       WithNoFixture(ES2_VULKAN()));

}  // namespace angle

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

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