Config_unittest.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/libANGLE/Config_unittest.cpp

//
// Copyright 2014 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.
//

#include "gmock/gmock.h"
#include "gtest/gtest.h"

#include "libANGLE/AttributeMap.h"
#include "libANGLE/Config.h"

// Create a generic, valid EGL config that can be modified to test sorting and
// filtering routines
static egl::Config GenerateGenericConfig()
{
    egl::Config config;

    config.bufferSize          = 24;
    config.redSize             = 8;
    config.greenSize           = 8;
    config.blueSize            = 8;
    config.luminanceSize       = 0;
    config.alphaSize           = 8;
    config.alphaMaskSize       = 0;
    config.bindToTextureRGB    = EGL_TRUE;
    config.bindToTextureRGBA   = EGL_TRUE;
    config.colorBufferType     = EGL_RGB_BUFFER;
    config.configCaveat        = EGL_NONE;
    config.configID            = 0;
    config.conformant          = EGL_OPENGL_ES2_BIT;
    config.depthSize           = 24;
    config.level               = 0;
    config.matchNativePixmap   = EGL_NONE;
    config.maxPBufferWidth     = 1024;
    config.maxPBufferHeight    = 1024;
    config.maxPBufferPixels    = config.maxPBufferWidth * config.maxPBufferWidth;
    config.maxSwapInterval     = 0;
    config.minSwapInterval     = 4;
    config.nativeRenderable    = EGL_OPENGL_ES2_BIT;
    config.nativeVisualID      = 0;
    config.nativeVisualType    = 0;
    config.renderableType      = EGL_FALSE;
    config.sampleBuffers       = 0;
    config.samples             = 0;
    config.stencilSize         = 8;
    config.surfaceType         = EGL_PBUFFER_BIT | EGL_WINDOW_BIT | EGL_SWAP_BEHAVIOR_PRESERVED_BIT;
    config.transparentType     = EGL_NONE;
    config.transparentRedValue = 0;
    config.transparentGreenValue = 0;
    config.transparentBlueValue  = 0;

    return config;
}

static std::vector<egl::Config> GenerateUniqueConfigs(size_t count)
{
    std::vector<egl::Config> configs;

    for (size_t i = 0; i < count; i++)
    {
        egl::Config config = GenerateGenericConfig();
        config.samples     = static_cast<EGLint>(i);
        configs.push_back(config);
    }

    return configs;
}

// Add unique configs to a ConfigSet and expect that the size of the
// set is equal to the number of configs added.
TEST(ConfigSetTest, Size)
{
    egl::ConfigSet set;

    std::vector<egl::Config> uniqueConfigs = GenerateUniqueConfigs(16);
    for (size_t i = 0; i < uniqueConfigs.size(); i++)
    {
        set.add(uniqueConfigs[i]);
        EXPECT_EQ(set.size(), i + 1);
    }
}

// [EGL 1.5] section 3.4:
// EGL_CONFIG_ID is a unique integer identifying different EGLConfigs. Configuration IDs
// must be small positive integers starting at 1 and ID assignment should be compact;
// that is, if there are N EGLConfigs defined by the EGL implementation, their
// configuration IDs should be in the range [1, N].
TEST(ConfigSetTest, IDs)
{
    egl::ConfigSet set;

    std::set<EGLint> ids;

    std::vector<egl::Config> uniqueConfigs = GenerateUniqueConfigs(16);
    for (size_t i = 0; i < uniqueConfigs.size(); i++)
    {
        EGLint id = set.add(uniqueConfigs[i]);

        // Check that the config that was inserted has the ID that was returned
        // by ConfigSet::add
        EXPECT_EQ(id, set.get(id).configID);

        ids.insert(id);
    }

    // Verify configCount unique IDs
    EXPECT_EQ(ids.size(), set.size());

    // Check that there are no gaps and the IDs are in the range [1, N].
    EXPECT_EQ(*std::min_element(ids.begin(), ids.end()), 1);
    EXPECT_EQ(*std::max_element(ids.begin(), ids.end()), static_cast<EGLint>(set.size()));
}

TEST(ConfigSetTest, Filtering_BitSizes)
{
    egl::ConfigSet set;

    struct VariableConfigBitSize
    {
        EGLint Name;
        EGLint(egl::Config::*ConfigMember);
    };

    VariableConfigBitSize testMembers[] = {
        {EGL_RED_SIZE, &egl::Config::redSize},     {EGL_GREEN_SIZE, &egl::Config::greenSize},
        {EGL_BLUE_SIZE, &egl::Config::blueSize},   {EGL_ALPHA_SIZE, &egl::Config::alphaSize},
        {EGL_DEPTH_SIZE, &egl::Config::depthSize}, {EGL_STENCIL_SIZE, &egl::Config::stencilSize},
    };

    // Generate configsPerType configs with varying bit sizes of each type
    size_t configsPerType = 4;
    for (size_t i = 0; i < ArraySize(testMembers); i++)
    {
        for (size_t j = 0; j < configsPerType; j++)
        {
            egl::Config config = GenerateGenericConfig();

            // Set all the other tested members of this config to 0
            for (size_t k = 0; k < ArraySize(testMembers); k++)
            {
                config.*(testMembers[k].ConfigMember) = 0;
            }

            // Set the tested member of this config to i so it ranges from
            // [1, configsPerType]
            config.*(testMembers[i].ConfigMember) = static_cast<EGLint>(j) + 1;

            set.add(config);
        }
    }

    // for each tested member, filter by it's type and verify that the correct number
    // of results are returned
    for (size_t i = 0; i < ArraySize(testMembers); i++)
    {
        // Start with a filter of 1 to not grab the other members
        for (EGLint j = 0; j < static_cast<EGLint>(configsPerType); j++)
        {
            egl::AttributeMap filter;
            filter.insert(testMembers[i].Name, j + 1);

            std::vector<const egl::Config *> filteredConfigs = set.filter(filter);

            EXPECT_EQ(filteredConfigs.size(), configsPerType - j);
        }
    }
}

// Verify the sorting, [EGL 1.5] section 3.4.1.2 pg 30:
// [configs are sorted] by larger total number of color bits (for an RGB
// color buffer this is the sum of EGL_RED_SIZE, EGL_GREEN_SIZE, EGL_BLUE_SIZE,
// and EGL_ALPHA_SIZE; for a luminance color buffer, the sum of EGL_LUMINANCE_SIZE
// and EGL_ALPHA_SIZE).If the requested number of bits in attrib list for a
// particular color component is 0 or EGL_DONT_CARE, then the number of bits
// for that component is not considered.
TEST(ConfigSetTest, Sorting_BitSizes)
{
    egl::ConfigSet set;
    size_t testConfigCount = 64;
    for (size_t i = 0; i < testConfigCount; i++)
    {
        egl::Config config = GenerateGenericConfig();

        // Give random-ish bit sizes to the config
        config.redSize   = (i * 2) % 3;
        config.greenSize = (i + 5) % 7;
        config.blueSize  = (i + 7) % 11;
        config.alphaSize = (i + 13) % 17;

        set.add(config);
    }

    egl::AttributeMap greaterThan1BitFilter;
    greaterThan1BitFilter.insert(EGL_RED_SIZE, 1);
    greaterThan1BitFilter.insert(EGL_GREEN_SIZE, 1);
    greaterThan1BitFilter.insert(EGL_BLUE_SIZE, 1);
    greaterThan1BitFilter.insert(EGL_ALPHA_SIZE, 1);

    std::vector<const egl::Config *> filteredConfigs = set.filter(greaterThan1BitFilter);
    for (size_t i = 1; i < filteredConfigs.size(); i++)
    {
        const egl::Config &prevConfig = *filteredConfigs[i - 1];
        size_t prevBitCount =
            prevConfig.redSize + prevConfig.greenSize + prevConfig.blueSize + prevConfig.alphaSize;

        const egl::Config &curConfig = *filteredConfigs[i];
        size_t curBitCount =
            curConfig.redSize + curConfig.greenSize + curConfig.blueSize + curConfig.alphaSize;

        EXPECT_GE(prevBitCount, curBitCount);
    }
}

kc3-lang/angle/src/libANGLE/Config_unittest.cpp

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kc3-lang/angle /src/libANGLE/Config_unittest.cpp