CopyTextureTest.cpp

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Author : Michael Spang
Date : 2019-01-29 15:35:09
Hash : d8506c7e
Message : Disable broken tests on Fuchsia (reland) This disables tests that do not work on Fuchsia. Most of them are related to cube maps which currently crash inside the intel driver. Reland disabling -Wextra-semi. BUG=angleproject:2475, angleproject:3145, angleproject:3081 TEST=angle_end2end_tests on Fuchsia Change-Id: I65ad84f43c88e8ee83c581cc2f41046d00bbae7f Reviewed-on: https://chromium-review.googlesource.com/c/1467604 Commit-Queue: Michael Spang <spang@chromium.org> Reviewed-by: Michael Spang <spang@chromium.org>
src/tests/gl_tests/CopyTextureTest.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.
//

// CopyTextureTest.cpp: Tests of the GL_CHROMIUM_copy_texture extension

#include "test_utils/ANGLETest.h"

#include "test_utils/gl_raii.h"

namespace angle
{

class CopyTextureTest : public ANGLETest
{
  protected:
    CopyTextureTest()
    {
        setWindowWidth(256);
        setWindowHeight(256);
        setConfigRedBits(8);
        setConfigGreenBits(8);
        setConfigBlueBits(8);
        setConfigAlphaBits(8);
    }

    void SetUp() override
    {
        ANGLETest::SetUp();

        glGenTextures(2, mTextures);
        glBindTexture(GL_TEXTURE_2D, mTextures[1]);

        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);

        glGenFramebuffers(1, &mFramebuffer);
        glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer);
        glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[1],
                               0);

        if (extensionEnabled("GL_CHROMIUM_copy_texture"))
        {
            glCopyTextureCHROMIUM = reinterpret_cast<PFNGLCOPYTEXTURECHROMIUMPROC>(
                eglGetProcAddress("glCopyTextureCHROMIUM"));
            glCopySubTextureCHROMIUM = reinterpret_cast<PFNGLCOPYSUBTEXTURECHROMIUMPROC>(
                eglGetProcAddress("glCopySubTextureCHROMIUM"));
        }
    }

    void TearDown() override
    {
        glDeleteTextures(2, mTextures);
        glDeleteFramebuffers(1, &mFramebuffer);

        ANGLETest::TearDown();
    }

    bool checkExtensions() const
    {
        if (!extensionEnabled("GL_CHROMIUM_copy_texture"))
        {
            std::cout << "Test skipped because GL_CHROMIUM_copy_texture is not available."
                      << std::endl;
            return false;
        }

        EXPECT_NE(nullptr, glCopyTextureCHROMIUM);
        EXPECT_NE(nullptr, glCopySubTextureCHROMIUM);
        return true;
    }

    void calculateCopyTextureResults(GLenum sourceFormat,
                                     GLenum destFormat,
                                     bool premultiplyAlpha,
                                     bool unmultiplyAlpha,
                                     const uint8_t *sourceColor,
                                     GLColor *destColor)
    {
        GLColor color;

        switch (sourceFormat)
        {
            case GL_RGB:
                color = GLColor(sourceColor[0], sourceColor[1], sourceColor[2], 255);
                break;
            case GL_RGBA:
                color = GLColor(sourceColor[0], sourceColor[1], sourceColor[2], sourceColor[3]);
                break;
            case GL_LUMINANCE:
                color = GLColor(sourceColor[0], sourceColor[0], sourceColor[0], 255);
                break;
            case GL_ALPHA:
                color = GLColor(0, 0, 0, sourceColor[0]);
                break;
            case GL_LUMINANCE_ALPHA:
                color = GLColor(sourceColor[0], sourceColor[0], sourceColor[0], sourceColor[1]);
                break;
            case GL_BGRA_EXT:
                color = GLColor(sourceColor[2], sourceColor[1], sourceColor[0], sourceColor[3]);
                break;
            default:
                EXPECT_EQ(true, false);
        }

        if (premultiplyAlpha != unmultiplyAlpha)
        {
            float alpha = color.A / 255.0f;
            if (premultiplyAlpha)
            {
                color.R = static_cast<GLubyte>(static_cast<float>(color.R) * alpha);
                color.G = static_cast<GLubyte>(static_cast<float>(color.G) * alpha);
                color.B = static_cast<GLubyte>(static_cast<float>(color.B) * alpha);
            }
            else if (unmultiplyAlpha && color.A != 0)
            {
                color.R = static_cast<GLubyte>(static_cast<float>(color.R) / alpha);
                color.G = static_cast<GLubyte>(static_cast<float>(color.G) / alpha);
                color.B = static_cast<GLubyte>(static_cast<float>(color.B) / alpha);
            }
        }

        switch (destFormat)
        {
            case GL_RGB:
                color.A = 255;
                break;
            case GL_RGBA:
            case GL_BGRA_EXT:
                break;
            default:
                EXPECT_EQ(true, false);
        }

        *destColor = color;
    }

    const uint8_t *getSourceColors(GLenum sourceFormat, size_t *colorCount, uint8_t *componentCount)
    {
        // Note: in all the following values, alpha is larger than RGB so unmultiply alpha doesn't
        // overflow
        constexpr static uint8_t kRgbaColors[7 * 4] = {
            255u, 127u, 63u,  255u,  // 0
            31u,  127u, 63u,  127u,  // 1
            31u,  63u,  127u, 255u,  // 2
            15u,  127u, 31u,  127u,  // 3
            127u, 255u, 63u,  0u,    // 4
            31u,  63u,  127u, 0u,    // 5
            15u,  31u,  63u,  63u,   // 6
        };

        constexpr static uint8_t kRgbColors[7 * 3] = {
            255u, 127u, 63u,   // 0
            31u,  127u, 63u,   // 1
            31u,  63u,  127u,  // 2
            15u,  127u, 31u,   // 3
            127u, 255u, 63u,   // 4
            31u,  63u,  127u,  // 5
            15u,  31u,  63u,   // 6
        };

        constexpr static uint8_t kLumColors[7 * 1] = {
            255u,  // 0
            163u,  // 1
            78u,   // 2
            114u,  // 3
            51u,   // 4
            0u,    // 5
            217u,  // 6
        };

        constexpr static uint8_t kLumaColors[7 * 2] = {
            255u, 255u,  // 0
            67u,  163u,  // 1
            78u,  231u,  // 2
            8u,   114u,  // 3
            51u,  199u,  // 4
            0u,   173u,  // 5
            34u,  217u,  // 6
        };

        constexpr static uint8_t kAlphaColors[7 * 1] = {
            255u,  // 0
            67u,   // 1
            231u,  // 2
            8u,    // 3
            199u,  // 4
            173u,  // 5
            34u,   // 6
        };

        *colorCount = 7;

        switch (sourceFormat)
        {
            case GL_RGB:
                *componentCount = 3;
                return kRgbColors;
            case GL_RGBA:
            case GL_BGRA_EXT:
                *componentCount = 4;
                return kRgbaColors;
            case GL_LUMINANCE:
                *componentCount = 1;
                return kLumColors;
            case GL_ALPHA:
                *componentCount = 1;
                return kAlphaColors;
            case GL_LUMINANCE_ALPHA:
                *componentCount = 2;
                return kLumaColors;
            default:
                EXPECT_EQ(true, false);
                return nullptr;
        }
    }

    void initializeSourceTexture(GLenum sourceFormat,
                                 const uint8_t *srcColors,
                                 uint8_t componentCount)
    {
        // The texture is initialized as 2x2.  If the componentCount is 1 or 3, then the input data
        // will have a row pitch of 2 or 6, which needs to be padded to 4 or 8 respectively.
        uint8_t srcColorsPadded[4 * 4];
        size_t srcRowPitch =
            2 * componentCount + (componentCount == 1 || componentCount == 3 ? 2 : 0);
        size_t inputRowPitch = 2 * componentCount;
        for (size_t row = 0; row < 2; ++row)
        {
            memcpy(&srcColorsPadded[row * srcRowPitch], &srcColors[row * inputRowPitch],
                   inputRowPitch);
            memset(&srcColorsPadded[row * srcRowPitch + inputRowPitch], 0,
                   srcRowPitch - inputRowPitch);
        }

        glBindTexture(GL_TEXTURE_2D, mTextures[0]);
        glTexImage2D(GL_TEXTURE_2D, 0, sourceFormat, 2, 2, 0, sourceFormat, GL_UNSIGNED_BYTE,
                     srcColorsPadded);
    }

    void testCopyTexture(GLenum sourceFormat,
                         GLenum destFormat,
                         bool flipY,
                         bool premultiplyAlpha,
                         bool unmultiplyAlpha)
    {
        if (!checkExtensions())
        {
            return;
        }

        size_t colorCount;
        uint8_t componentCount;
        const uint8_t *srcColors = getSourceColors(sourceFormat, &colorCount, &componentCount);

        std::vector<GLColor> destColors(colorCount);
        for (size_t i = 0; i < colorCount; ++i)
        {
            calculateCopyTextureResults(sourceFormat, destFormat, premultiplyAlpha, unmultiplyAlpha,
                                        &srcColors[i * componentCount], &destColors[i]);
        }

        for (size_t i = 0; i < colorCount - 3; ++i)
        {
            initializeSourceTexture(sourceFormat, &srcColors[i * componentCount], componentCount);

            glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, destFormat,
                                  GL_UNSIGNED_BYTE, flipY, premultiplyAlpha, unmultiplyAlpha);

            EXPECT_GL_NO_ERROR();

            // Check that FB is complete.
            EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));

            if (flipY)
            {
                EXPECT_PIXEL_COLOR_NEAR(0, 0, destColors[i + 2], 1.0);
                EXPECT_PIXEL_COLOR_NEAR(1, 0, destColors[i + 3], 1.0);
                EXPECT_PIXEL_COLOR_NEAR(0, 1, destColors[i + 0], 1.0);
                EXPECT_PIXEL_COLOR_NEAR(1, 1, destColors[i + 1], 1.0);
            }
            else
            {
                EXPECT_PIXEL_COLOR_NEAR(0, 0, destColors[i + 0], 1.0);
                EXPECT_PIXEL_COLOR_NEAR(1, 0, destColors[i + 1], 1.0);
                EXPECT_PIXEL_COLOR_NEAR(0, 1, destColors[i + 2], 1.0);
                EXPECT_PIXEL_COLOR_NEAR(1, 1, destColors[i + 3], 1.0);
            }

            EXPECT_GL_NO_ERROR();
        }
    }

    void testCopySubTexture(GLenum sourceFormat,
                            GLenum destFormat,
                            bool flipY,
                            bool premultiplyAlpha,
                            bool unmultiplyAlpha)
    {
        if (!checkExtensions())
        {
            return;
        }

        size_t colorCount;
        uint8_t componentCount;
        const uint8_t *srcColors = getSourceColors(sourceFormat, &colorCount, &componentCount);

        std::vector<GLColor> destColors(colorCount);
        for (size_t i = 0; i < colorCount; ++i)
        {
            calculateCopyTextureResults(sourceFormat, destFormat, premultiplyAlpha, unmultiplyAlpha,
                                        &srcColors[i * componentCount], &destColors[i]);
        }

        for (size_t i = 0; i < colorCount - 3; ++i)
        {
            initializeSourceTexture(sourceFormat, &srcColors[i * componentCount], componentCount);

            glBindTexture(GL_TEXTURE_2D, mTextures[1]);
            glTexImage2D(GL_TEXTURE_2D, 0, destFormat, 2, 2, 0, destFormat, GL_UNSIGNED_BYTE,
                         nullptr);

            glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 0, 0, 0, 0, 2,
                                     2, flipY, premultiplyAlpha, unmultiplyAlpha);

            EXPECT_GL_NO_ERROR();

            if (sourceFormat != GL_LUMINANCE && sourceFormat != GL_LUMINANCE_ALPHA &&
                sourceFormat != GL_ALPHA)
            {
                // Check that FB is complete.
                EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));
            }

            if (flipY)
            {
                EXPECT_PIXEL_COLOR_NEAR(0, 0, destColors[i + 2], 1.0);
                EXPECT_PIXEL_COLOR_NEAR(1, 0, destColors[i + 3], 1.0);
                EXPECT_PIXEL_COLOR_NEAR(0, 1, destColors[i + 0], 1.0);
                EXPECT_PIXEL_COLOR_NEAR(1, 1, destColors[i + 1], 1.0);
            }
            else
            {
                EXPECT_PIXEL_COLOR_NEAR(0, 0, destColors[i + 0], 1.0);
                EXPECT_PIXEL_COLOR_NEAR(1, 0, destColors[i + 1], 1.0);
                EXPECT_PIXEL_COLOR_NEAR(0, 1, destColors[i + 2], 1.0);
                EXPECT_PIXEL_COLOR_NEAR(1, 1, destColors[i + 3], 1.0);
            }

            EXPECT_GL_NO_ERROR();
        }
    }

    void testGradientDownsampleUniqueValues(GLenum destFormat,
                                            GLenum destType,
                                            const std::array<size_t, 4> &expectedUniqueValues)
    {
        std::array<GLColor, 256> sourceGradient;
        for (size_t i = 0; i < sourceGradient.size(); i++)
        {
            GLubyte value     = static_cast<GLubyte>(i);
            sourceGradient[i] = GLColor(value, value, value, value);
        }
        GLTexture sourceTexture;
        glBindTexture(GL_TEXTURE_2D, sourceTexture);
        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 256, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE,
                     sourceGradient.data());

        GLTexture destTexture;
        glBindTexture(GL_TEXTURE_2D, destTexture);
        glCopyTextureCHROMIUM(sourceTexture, 0, GL_TEXTURE_2D, destTexture, 0, destFormat, destType,
                              GL_FALSE, GL_FALSE, GL_FALSE);
        EXPECT_GL_NO_ERROR();

        GLFramebuffer fbo;
        glBindFramebuffer(GL_FRAMEBUFFER, fbo);
        glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, destTexture, 0);

        std::array<GLColor, 256> destData;
        glReadPixels(0, 0, 256, 1, GL_RGBA, GL_UNSIGNED_BYTE, destData.data());
        EXPECT_GL_NO_ERROR();

        std::set<GLubyte> uniqueValues[4];
        for (size_t i = 0; i < destData.size(); i++)
        {
            GLColor color = destData[i];
            uniqueValues[0].insert(color.R);
            uniqueValues[1].insert(color.G);
            uniqueValues[2].insert(color.B);
            uniqueValues[3].insert(color.A);
        }

        EXPECT_EQ(expectedUniqueValues[0], uniqueValues[0].size());
        EXPECT_EQ(expectedUniqueValues[1], uniqueValues[1].size());
        EXPECT_EQ(expectedUniqueValues[2], uniqueValues[2].size());
        EXPECT_EQ(expectedUniqueValues[3], uniqueValues[3].size());
    }

    GLuint mTextures[2] = {
        0,
        0,
    };
    GLuint mFramebuffer = 0;

    PFNGLCOPYTEXTURECHROMIUMPROC glCopyTextureCHROMIUM       = nullptr;
    PFNGLCOPYSUBTEXTURECHROMIUMPROC glCopySubTextureCHROMIUM = nullptr;
};

class CopyTextureTestDest : public CopyTextureTest
{};

class CopyTextureTestWebGL : public CopyTextureTest
{
  protected:
    CopyTextureTestWebGL() : CopyTextureTest() { setWebGLCompatibilityEnabled(true); }
};

class CopyTextureTestES3 : public CopyTextureTest
{};

// Test to ensure that the basic functionality of the extension works.
TEST_P(CopyTextureTest, BasicCopyTexture)
{
    testCopyTexture(GL_RGBA, GL_RGBA, false, false, false);
}

// Test to ensure that the basic functionality of the extension works.
TEST_P(CopyTextureTest, BasicCopySubTexture)
{
    testCopySubTexture(GL_RGBA, GL_RGBA, false, false, false);
}

// Test that CopyTexture cannot redefine an immutable texture and CopySubTexture can copy data to
// immutable textures
TEST_P(CopyTextureTest, ImmutableTexture)
{
    if (!checkExtensions())
    {
        return;
    }

    ANGLE_SKIP_TEST_IF(
        getClientMajorVersion() < 3 &&
        (!extensionEnabled("GL_EXT_texture_storage") || !extensionEnabled("GL_OES_rgb8_rgba8")));

    GLColor pixels = GLColor::red;

    glBindTexture(GL_TEXTURE_2D, mTextures[0]);
    glTexStorage2DEXT(GL_TEXTURE_2D, 1, GL_RGBA8_OES, 1, 1);
    glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, &pixels);

    glBindTexture(GL_TEXTURE_2D, mTextures[1]);
    glTexStorage2DEXT(GL_TEXTURE_2D, 1, GL_RGBA8_OES, 1, 1);
    glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[1], 0);
    EXPECT_GL_NO_ERROR();

    // Should generate an error when the texture is redefined
    glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
                          GL_UNSIGNED_BYTE, false, false, false);
    EXPECT_GL_ERROR(GL_INVALID_OPERATION);

    // Should succeed when using CopySubTexture
    glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 0, 0, 0, 0, 1, 1,
                             false, false, false);
    EXPECT_GL_NO_ERROR();

    // Check that FB is complete.
    EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));

    EXPECT_PIXEL_COLOR_EQ(0, 0, pixels);

    EXPECT_GL_NO_ERROR();
}

// Test validation of internal formats in CopyTexture and CopySubTexture
TEST_P(CopyTextureTest, InternalFormat)
{
    if (!checkExtensions())
    {
        return;
    }

    std::vector<GLint> sourceFormats;
    sourceFormats.push_back(GL_ALPHA);
    sourceFormats.push_back(GL_RGB);
    sourceFormats.push_back(GL_RGBA);
    sourceFormats.push_back(GL_LUMINANCE);
    sourceFormats.push_back(GL_LUMINANCE_ALPHA);

    std::vector<GLint> destFormats;
    destFormats.push_back(GL_RGB);
    destFormats.push_back(GL_RGBA);

    if (extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        sourceFormats.push_back(GL_BGRA_EXT);
        destFormats.push_back(GL_BGRA_EXT);
    }

    // Test with glCopyTexture
    for (GLint sourceFormat : sourceFormats)
    {
        for (GLint destFormat : destFormats)
        {
            glBindTexture(GL_TEXTURE_2D, mTextures[0]);
            glTexImage2D(GL_TEXTURE_2D, 0, sourceFormat, 1, 1, 0, sourceFormat, GL_UNSIGNED_BYTE,
                         nullptr);
            EXPECT_GL_NO_ERROR();

            glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, destFormat,
                                  GL_UNSIGNED_BYTE, false, false, false);

            EXPECT_GL_NO_ERROR();
        }
    }

    // Test with glCopySubTexture
    for (GLint sourceFormat : sourceFormats)
    {
        for (GLint destFormat : destFormats)
        {
            glBindTexture(GL_TEXTURE_2D, mTextures[0]);
            glTexImage2D(GL_TEXTURE_2D, 0, sourceFormat, 1, 1, 0, sourceFormat, GL_UNSIGNED_BYTE,
                         nullptr);
            EXPECT_GL_NO_ERROR();

            glBindTexture(GL_TEXTURE_2D, mTextures[1]);
            glTexImage2D(GL_TEXTURE_2D, 0, destFormat, 1, 1, 0, destFormat, GL_UNSIGNED_BYTE,
                         nullptr);
            EXPECT_GL_NO_ERROR();

            glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 0, 0, 0, 0, 1,
                                     1, false, false, false);

            EXPECT_GL_NO_ERROR();
        }
    }
}

// Test to ensure that the destination texture is redefined if the properties are different.
TEST_P(CopyTextureTest, RedefineDestinationTexture)
{
    ANGLE_SKIP_TEST_IF(!checkExtensions());
    ANGLE_SKIP_TEST_IF(!extensionEnabled("GL_EXT_texture_format_BGRA8888"));

    GLColor pixels[4] = {GLColor::red, GLColor::red, GLColor::red, GLColor::red};

    glBindTexture(GL_TEXTURE_2D, mTextures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);

    glBindTexture(GL_TEXTURE_2D, mTextures[1]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT, 1, 1, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, pixels);
    EXPECT_GL_NO_ERROR();

    // GL_INVALID_OPERATION due to "intrinsic format" != "internal format".
    glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
    EXPECT_GL_ERROR(GL_INVALID_OPERATION);
    // GL_INVALID_VALUE due to bad dimensions.
    glTexSubImage2D(GL_TEXTURE_2D, 0, 1, 1, 1, 1, GL_BGRA_EXT, GL_UNSIGNED_BYTE, pixels);
    EXPECT_GL_ERROR(GL_INVALID_VALUE);

    // If the dest texture has different properties, glCopyTextureCHROMIUM()
    // redefines them.
    glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
                          GL_UNSIGNED_BYTE, false, false, false);
    EXPECT_GL_NO_ERROR();

    // glTexSubImage2D() succeeds because mTextures[1] is redefined into 2x2
    // dimension and GL_RGBA format.
    glBindTexture(GL_TEXTURE_2D, mTextures[1]);
    glTexSubImage2D(GL_TEXTURE_2D, 0, 1, 1, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
    EXPECT_GL_NO_ERROR();

    // Check that FB is complete.
    EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));

    EXPECT_PIXEL_COLOR_EQ(1, 1, pixels[3]);
    EXPECT_GL_NO_ERROR();
}

// Test that invalid dimensions in CopySubTexture are validated
TEST_P(CopyTextureTest, CopySubTextureDimension)
{
    if (!checkExtensions())
    {
        return;
    }

    glBindTexture(GL_TEXTURE_2D, mTextures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);

    glBindTexture(GL_TEXTURE_2D, mTextures[1]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 3, 3, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);

    glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 1, 1, 0, 0, 1, 1,
                             false, false, false);
    EXPECT_GL_NO_ERROR();

    // xoffset < 0
    glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, -1, 1, 0, 0, 1, 1,
                             false, false, false);
    EXPECT_GL_ERROR(GL_INVALID_VALUE);

    // x < 0
    glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 1, 1, -1, 0, 1, 1,
                             false, false, false);
    EXPECT_GL_ERROR(GL_INVALID_VALUE);

    // xoffset + width > dest_width
    glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 2, 2, 0, 0, 2, 2,
                             false, false, false);
    EXPECT_GL_ERROR(GL_INVALID_VALUE);

    // x + width > source_width
    glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 0, 0, 1, 1, 2, 2,
                             false, false, false);
    EXPECT_GL_ERROR(GL_INVALID_VALUE);
}

// Test that invalid IDs in CopyTexture are validated
TEST_P(CopyTextureTest, CopyTextureInvalidTextureIds)
{
    if (!checkExtensions())
    {
        return;
    }

    glBindTexture(GL_TEXTURE_2D, mTextures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);

    glBindTexture(GL_TEXTURE_2D, mTextures[1]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 3, 3, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);

    glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, 99993, 0, GL_RGBA, GL_UNSIGNED_BYTE,
                          false, false, false);
    EXPECT_GL_ERROR(GL_INVALID_VALUE);

    glCopyTextureCHROMIUM(99994, 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA, GL_UNSIGNED_BYTE,
                          false, false, false);
    EXPECT_GL_ERROR(GL_INVALID_VALUE);

    glCopyTextureCHROMIUM(99995, 0, GL_TEXTURE_2D, 99996, 0, GL_RGBA, GL_UNSIGNED_BYTE, false,
                          false, false);
    EXPECT_GL_ERROR(GL_INVALID_VALUE);

    glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
                          GL_UNSIGNED_BYTE, false, false, false);
    EXPECT_GL_NO_ERROR();
}

// Test that invalid IDs in CopySubTexture are validated
TEST_P(CopyTextureTest, CopySubTextureInvalidTextureIds)
{
    if (!checkExtensions())
    {
        return;
    }

    glBindTexture(GL_TEXTURE_2D, mTextures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);

    glBindTexture(GL_TEXTURE_2D, mTextures[1]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 3, 3, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);

    glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, 99993, 0, 1, 1, 0, 0, 1, 1, false,
                             false, false);
    EXPECT_GL_ERROR(GL_INVALID_VALUE);

    glCopySubTextureCHROMIUM(99994, 0, GL_TEXTURE_2D, mTextures[1], 0, 1, 1, 0, 0, 1, 1, false,
                             false, false);
    EXPECT_GL_ERROR(GL_INVALID_VALUE);

    glCopySubTextureCHROMIUM(99995, 0, GL_TEXTURE_2D, 99996, 0, 1, 1, 0, 0, 1, 1, false, false,
                             false);
    EXPECT_GL_ERROR(GL_INVALID_VALUE);

    glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 1, 1, 0, 0, 1, 1,
                             false, false, false);
    EXPECT_GL_NO_ERROR();
}

TEST_P(CopyTextureTest, InvalidTarget)
{
    ANGLE_SKIP_TEST_IF(!checkExtensions());

    GLTexture textures[2];

    glBindTexture(GL_TEXTURE_2D, textures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);

    glBindTexture(GL_TEXTURE_2D, textures[1]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 3, 3, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);

    // Invalid enum for a completely invalid target
    glCopySubTextureCHROMIUM(textures[0], 0, GL_INVALID_VALUE, textures[1], 0, 1, 1, 0, 0, 1, 1,
                             false, false, false);
    EXPECT_GL_ERROR(GL_INVALID_ENUM);

    // Invalid value for a valid target enum but is not valid for the destination texture
    glCopySubTextureCHROMIUM(textures[0], 0, GL_TEXTURE_CUBE_MAP_POSITIVE_X, textures[1], 0, 1, 1,
                             0, 0, 1, 1, false, false, false);
    EXPECT_GL_ERROR(GL_INVALID_VALUE);
}

// Test that using an offset in CopySubTexture works correctly
TEST_P(CopyTextureTest, CopySubTextureOffset)
{
    if (!checkExtensions())
    {
        return;
    }

    GLColor rgbaPixels[4 * 4] = {GLColor::red, GLColor::green, GLColor::blue, GLColor::black};
    glBindTexture(GL_TEXTURE_2D, mTextures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, rgbaPixels);

    GLColor transparentPixels[4 * 4] = {GLColor::transparentBlack, GLColor::transparentBlack,
                                        GLColor::transparentBlack, GLColor::transparentBlack};
    glBindTexture(GL_TEXTURE_2D, mTextures[1]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, transparentPixels);

    // Check that FB is complete.
    EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));

    glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 1, 1, 0, 0, 1, 1,
                             false, false, false);
    EXPECT_GL_NO_ERROR();
    EXPECT_PIXEL_COLOR_EQ(1, 1, GLColor::red);

    glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 1, 0, 1, 0, 1, 1,
                             false, false, false);
    EXPECT_GL_NO_ERROR();
    EXPECT_PIXEL_COLOR_EQ(1, 0, GLColor::green);

    glCopySubTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, 0, 1, 0, 1, 1, 1,
                             false, false, false);
    EXPECT_GL_NO_ERROR();
    EXPECT_PIXEL_COLOR_EQ(0, 1, GLColor::blue);

    EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::transparentBlack);
    EXPECT_GL_NO_ERROR();
}

// Test every combination of copy [sub]texture parameters:
// source: ALPHA, RGB, RGBA, LUMINANCE, LUMINANCE_ALPHA, BGRA_EXT
// destination: RGB, RGBA, BGRA_EXT
// flipY: false, true
// premultiplyAlpha: false, true
// unmultiplyAlpha: false, true
TEST_P(CopyTextureTest, CopyTextureAToRGB)
{
    testCopyTexture(GL_ALPHA, GL_RGB, false, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureAToRGB)
{
    testCopySubTexture(GL_ALPHA, GL_RGB, false, false, false);
}

TEST_P(CopyTextureTest, CopyTextureAToRGBUnmultiplyAlpha)
{
    testCopyTexture(GL_ALPHA, GL_RGB, false, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureAToRGBUnmultiplyAlpha)
{
    testCopySubTexture(GL_ALPHA, GL_RGB, false, false, true);
}

TEST_P(CopyTextureTest, CopyTextureAToRGBPremultiplyAlpha)
{
    testCopyTexture(GL_ALPHA, GL_RGB, false, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureAToRGBPremultiplyAlpha)
{
    testCopySubTexture(GL_ALPHA, GL_RGB, false, true, false);
}

TEST_P(CopyTextureTest, CopyTextureAToRGBPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_ALPHA, GL_RGB, false, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureAToRGBPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_ALPHA, GL_RGB, false, true, true);
}

TEST_P(CopyTextureTest, CopyTextureAToRGBFlipY)
{
    testCopyTexture(GL_ALPHA, GL_RGB, true, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureAToRGBFlipY)
{
    testCopySubTexture(GL_ALPHA, GL_RGB, true, false, false);
}

TEST_P(CopyTextureTest, CopyTextureAToRGBFlipYUnmultiplyAlpha)
{
    testCopyTexture(GL_ALPHA, GL_RGB, true, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureAToRGBFlipYUnmultiplyAlpha)
{
    testCopySubTexture(GL_ALPHA, GL_RGB, true, false, true);
}

TEST_P(CopyTextureTest, CopyTextureAToRGBFlipYPremultiplyAlpha)
{
    testCopyTexture(GL_ALPHA, GL_RGB, true, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureAToRGBFlipYPremultiplyAlpha)
{
    testCopySubTexture(GL_ALPHA, GL_RGB, true, true, false);
}

TEST_P(CopyTextureTest, CopyTextureAToRGBFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_ALPHA, GL_RGB, true, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureAToRGBFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_ALPHA, GL_RGB, true, true, true);
}

TEST_P(CopyTextureTest, CopyTextureAToRGBA)
{
    testCopyTexture(GL_ALPHA, GL_RGBA, false, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureAToRGBA)
{
    testCopySubTexture(GL_ALPHA, GL_RGBA, false, false, false);
}

TEST_P(CopyTextureTest, CopyTextureAToRGBAUnmultiplyAlpha)
{
    testCopyTexture(GL_ALPHA, GL_RGBA, false, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureAToRGBAUnmultiplyAlpha)
{
    testCopySubTexture(GL_ALPHA, GL_RGBA, false, false, true);
}

TEST_P(CopyTextureTest, CopyTextureAToRGBAPremultiplyAlpha)
{
    testCopyTexture(GL_ALPHA, GL_RGBA, false, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureAToRGBAPremultiplyAlpha)
{
    testCopySubTexture(GL_ALPHA, GL_RGBA, false, true, false);
}

TEST_P(CopyTextureTest, CopyTextureAToRGBAPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_ALPHA, GL_RGBA, false, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureAToRGBAPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_ALPHA, GL_RGBA, false, true, true);
}

TEST_P(CopyTextureTest, CopyTextureAToRGBAFlipY)
{
    testCopyTexture(GL_ALPHA, GL_RGBA, true, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureAToRGBAFlipY)
{
    testCopySubTexture(GL_ALPHA, GL_RGBA, true, false, false);
}

TEST_P(CopyTextureTest, CopyTextureAToRGBAFlipYUnmultiplyAlpha)
{
    testCopyTexture(GL_ALPHA, GL_RGBA, true, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureAToRGBAFlipYUnmultiplyAlpha)
{
    testCopySubTexture(GL_ALPHA, GL_RGBA, true, false, true);
}

TEST_P(CopyTextureTest, CopyTextureAToRGBAFlipYPremultiplyAlpha)
{
    testCopyTexture(GL_ALPHA, GL_RGBA, true, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureAToRGBAFlipYPremultiplyAlpha)
{
    testCopySubTexture(GL_ALPHA, GL_RGBA, true, true, false);
}

TEST_P(CopyTextureTest, CopyTextureAToRGBAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_ALPHA, GL_RGBA, true, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureAToRGBAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_ALPHA, GL_RGBA, true, true, true);
}

TEST_P(CopyTextureTest, CopyTextureAToBGRA)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_ALPHA, GL_BGRA_EXT, false, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureAToBGRA)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_ALPHA, GL_BGRA_EXT, false, false, false);
}

TEST_P(CopyTextureTest, CopyTextureAToBGRAUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_ALPHA, GL_BGRA_EXT, false, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureAToBGRAUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_ALPHA, GL_BGRA_EXT, false, false, true);
}

TEST_P(CopyTextureTest, CopyTextureAToBGRAPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_ALPHA, GL_BGRA_EXT, false, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureAToBGRAPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_ALPHA, GL_BGRA_EXT, false, true, false);
}

TEST_P(CopyTextureTest, CopyTextureAToBGRAPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_ALPHA, GL_BGRA_EXT, false, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureAToBGRAPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_ALPHA, GL_BGRA_EXT, false, true, true);
}

TEST_P(CopyTextureTest, CopyTextureAToBGRAFlipY)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_ALPHA, GL_BGRA_EXT, true, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureAToBGRAFlipY)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_ALPHA, GL_BGRA_EXT, true, false, false);
}

TEST_P(CopyTextureTest, CopyTextureAToBGRAFlipYUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_ALPHA, GL_BGRA_EXT, true, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureAToBGRAFlipYUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_ALPHA, GL_BGRA_EXT, true, false, true);
}

TEST_P(CopyTextureTest, CopyTextureAToBGRAFlipYPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_ALPHA, GL_BGRA_EXT, true, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureAToBGRAFlipYPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_ALPHA, GL_BGRA_EXT, true, true, false);
}

TEST_P(CopyTextureTest, CopyTextureAToBGRAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_ALPHA, GL_BGRA_EXT, true, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureAToBGRAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_ALPHA, GL_BGRA_EXT, true, true, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBToRGB)
{
    testCopyTexture(GL_RGB, GL_RGB, false, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToRGB)
{
    testCopySubTexture(GL_RGB, GL_RGB, false, false, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBToRGBUnmultiplyAlpha)
{
    testCopyTexture(GL_RGB, GL_RGB, false, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToRGBUnmultiplyAlpha)
{
    testCopySubTexture(GL_RGB, GL_RGB, false, false, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBToRGBPremultiplyAlpha)
{
    testCopyTexture(GL_RGB, GL_RGB, false, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToRGBPremultiplyAlpha)
{
    testCopySubTexture(GL_RGB, GL_RGB, false, true, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBToRGBPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_RGB, GL_RGB, false, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToRGBPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_RGB, GL_RGB, false, true, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBToRGBFlipY)
{
    testCopyTexture(GL_RGB, GL_RGB, true, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToRGBFlipY)
{
    testCopySubTexture(GL_RGB, GL_RGB, true, false, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBToRGBFlipYUnmultiplyAlpha)
{
    testCopyTexture(GL_RGB, GL_RGB, true, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToRGBFlipYUnmultiplyAlpha)
{
    testCopySubTexture(GL_RGB, GL_RGB, true, false, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBToRGBFlipYPremultiplyAlpha)
{
    testCopyTexture(GL_RGB, GL_RGB, true, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToRGBFlipYPremultiplyAlpha)
{
    testCopySubTexture(GL_RGB, GL_RGB, true, true, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBToRGBFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_RGB, GL_RGB, true, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToRGBFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_RGB, GL_RGB, true, true, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBToRGBA)
{
    testCopyTexture(GL_RGB, GL_RGBA, false, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToRGBA)
{
    testCopySubTexture(GL_RGB, GL_RGBA, false, false, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBToRGBAUnmultiplyAlpha)
{
    testCopyTexture(GL_RGB, GL_RGBA, false, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToRGBAUnmultiplyAlpha)
{
    testCopySubTexture(GL_RGB, GL_RGBA, false, false, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBToRGBAPremultiplyAlpha)
{
    testCopyTexture(GL_RGB, GL_RGBA, false, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToRGBAPremultiplyAlpha)
{
    testCopySubTexture(GL_RGB, GL_RGBA, false, true, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBToRGBAPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_RGB, GL_RGBA, false, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToRGBAPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_RGB, GL_RGBA, false, true, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBToRGBAFlipY)
{
    testCopyTexture(GL_RGB, GL_RGBA, true, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToRGBAFlipY)
{
    testCopySubTexture(GL_RGB, GL_RGBA, true, false, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBToRGBAFlipYUnmultiplyAlpha)
{
    testCopyTexture(GL_RGB, GL_RGBA, true, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToRGBAFlipYUnmultiplyAlpha)
{
    testCopySubTexture(GL_RGB, GL_RGBA, true, false, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBToRGBAFlipYPremultiplyAlpha)
{
    testCopyTexture(GL_RGB, GL_RGBA, true, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToRGBAFlipYPremultiplyAlpha)
{
    testCopySubTexture(GL_RGB, GL_RGBA, true, true, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBToRGBAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_RGB, GL_RGBA, true, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToRGBAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_RGB, GL_RGBA, true, true, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBToBGRA)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_RGB, GL_BGRA_EXT, false, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToBGRA)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_RGB, GL_BGRA_EXT, false, false, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBToBGRAUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_RGB, GL_BGRA_EXT, false, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToBGRAUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_RGB, GL_BGRA_EXT, false, false, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBToBGRAPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_RGB, GL_BGRA_EXT, false, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToBGRAPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_RGB, GL_BGRA_EXT, false, true, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBToBGRAPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_RGB, GL_BGRA_EXT, false, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToBGRAPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_RGB, GL_BGRA_EXT, false, true, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBToBGRAFlipY)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_RGB, GL_BGRA_EXT, true, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToBGRAFlipY)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_RGB, GL_BGRA_EXT, true, false, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBToBGRAFlipYUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_RGB, GL_BGRA_EXT, true, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToBGRAFlipYUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_RGB, GL_BGRA_EXT, true, false, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBToBGRAFlipYPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_RGB, GL_BGRA_EXT, true, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToBGRAFlipYPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_RGB, GL_BGRA_EXT, true, true, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBToBGRAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_RGB, GL_BGRA_EXT, true, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBToBGRAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_RGB, GL_BGRA_EXT, true, true, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToRGB)
{
    testCopyTexture(GL_RGBA, GL_RGB, false, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToRGB)
{
    testCopySubTexture(GL_RGBA, GL_RGB, false, false, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToRGBUnmultiplyAlpha)
{
    testCopyTexture(GL_RGBA, GL_RGB, false, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToRGBUnmultiplyAlpha)
{
    testCopySubTexture(GL_RGBA, GL_RGB, false, false, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToRGBPremultiplyAlpha)
{
    testCopyTexture(GL_RGBA, GL_RGB, false, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToRGBPremultiplyAlpha)
{
    testCopySubTexture(GL_RGBA, GL_RGB, false, true, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToRGBPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_RGBA, GL_RGB, false, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToRGBPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_RGBA, GL_RGB, false, true, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToRGBFlipY)
{
    testCopyTexture(GL_RGBA, GL_RGB, true, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToRGBFlipY)
{
    testCopySubTexture(GL_RGBA, GL_RGB, true, false, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToRGBFlipYUnmultiplyAlpha)
{
    testCopyTexture(GL_RGBA, GL_RGB, true, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToRGBFlipYUnmultiplyAlpha)
{
    testCopySubTexture(GL_RGBA, GL_RGB, true, false, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToRGBFlipYPremultiplyAlpha)
{
    testCopyTexture(GL_RGBA, GL_RGB, true, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToRGBFlipYPremultiplyAlpha)
{
    testCopySubTexture(GL_RGBA, GL_RGB, true, true, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToRGBFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_RGBA, GL_RGB, true, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToRGBFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_RGBA, GL_RGB, true, true, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToRGBA)
{
    testCopyTexture(GL_RGBA, GL_RGBA, false, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToRGBA)
{
    testCopySubTexture(GL_RGBA, GL_RGBA, false, false, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToRGBAUnmultiplyAlpha)
{
    testCopyTexture(GL_RGBA, GL_RGBA, false, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToRGBAUnmultiplyAlpha)
{
    testCopySubTexture(GL_RGBA, GL_RGBA, false, false, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToRGBAPremultiplyAlpha)
{
    testCopyTexture(GL_RGBA, GL_RGBA, false, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToRGBAPremultiplyAlpha)
{
    testCopySubTexture(GL_RGBA, GL_RGBA, false, true, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToRGBAPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_RGBA, GL_RGBA, false, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToRGBAPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_RGBA, GL_RGBA, false, true, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToRGBAFlipY)
{
    testCopyTexture(GL_RGBA, GL_RGBA, true, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToRGBAFlipY)
{
    testCopySubTexture(GL_RGBA, GL_RGBA, true, false, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToRGBAFlipYUnmultiplyAlpha)
{
    testCopyTexture(GL_RGBA, GL_RGBA, true, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToRGBAFlipYUnmultiplyAlpha)
{
    testCopySubTexture(GL_RGBA, GL_RGBA, true, false, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToRGBAFlipYPremultiplyAlpha)
{
    testCopyTexture(GL_RGBA, GL_RGBA, true, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToRGBAFlipYPremultiplyAlpha)
{
    testCopySubTexture(GL_RGBA, GL_RGBA, true, true, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToRGBAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_RGBA, GL_RGBA, true, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToRGBAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_RGBA, GL_RGBA, true, true, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToBGRA)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_RGBA, GL_BGRA_EXT, false, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToBGRA)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_RGBA, GL_BGRA_EXT, false, false, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToBGRAUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_RGBA, GL_BGRA_EXT, false, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToBGRAUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_RGBA, GL_BGRA_EXT, false, false, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToBGRAPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_RGBA, GL_BGRA_EXT, false, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToBGRAPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_RGBA, GL_BGRA_EXT, false, true, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToBGRAPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_RGBA, GL_BGRA_EXT, false, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToBGRAPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_RGBA, GL_BGRA_EXT, false, true, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToBGRAFlipY)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_RGBA, GL_BGRA_EXT, true, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToBGRAFlipY)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_RGBA, GL_BGRA_EXT, true, false, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToBGRAFlipYUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_RGBA, GL_BGRA_EXT, true, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToBGRAFlipYUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_RGBA, GL_BGRA_EXT, true, false, true);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToBGRAFlipYPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_RGBA, GL_BGRA_EXT, true, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToBGRAFlipYPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_RGBA, GL_BGRA_EXT, true, true, false);
}

TEST_P(CopyTextureTest, CopyTextureRGBAToBGRAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_RGBA, GL_BGRA_EXT, true, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureRGBAToBGRAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_RGBA, GL_BGRA_EXT, true, true, true);
}

TEST_P(CopyTextureTest, CopyTextureLToRGB)
{
    testCopyTexture(GL_LUMINANCE, GL_RGB, false, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureLToRGB)
{
    testCopySubTexture(GL_LUMINANCE, GL_RGB, false, false, false);
}

TEST_P(CopyTextureTest, CopyTextureLToRGBUnmultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE, GL_RGB, false, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureLToRGBUnmultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE, GL_RGB, false, false, true);
}

TEST_P(CopyTextureTest, CopyTextureLToRGBPremultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE, GL_RGB, false, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureLToRGBPremultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE, GL_RGB, false, true, false);
}

TEST_P(CopyTextureTest, CopyTextureLToRGBPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE, GL_RGB, false, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureLToRGBPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE, GL_RGB, false, true, true);
}

TEST_P(CopyTextureTest, CopyTextureLToRGBFlipY)
{
    testCopyTexture(GL_LUMINANCE, GL_RGB, true, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureLToRGBFlipY)
{
    testCopySubTexture(GL_LUMINANCE, GL_RGB, true, false, false);
}

TEST_P(CopyTextureTest, CopyTextureLToRGBFlipYUnmultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE, GL_RGB, true, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureLToRGBFlipYUnmultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE, GL_RGB, true, false, true);
}

TEST_P(CopyTextureTest, CopyTextureLToRGBFlipYPremultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE, GL_RGB, true, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureLToRGBFlipYPremultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE, GL_RGB, true, true, false);
}

TEST_P(CopyTextureTest, CopyTextureLToRGBFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE, GL_RGB, true, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureLToRGBFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE, GL_RGB, true, true, true);
}

TEST_P(CopyTextureTest, CopyTextureLToRGBA)
{
    testCopyTexture(GL_LUMINANCE, GL_RGBA, false, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureLToRGBA)
{
    testCopySubTexture(GL_LUMINANCE, GL_RGBA, false, false, false);
}

TEST_P(CopyTextureTest, CopyTextureLToRGBAUnmultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE, GL_RGBA, false, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureLToRGBAUnmultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE, GL_RGBA, false, false, true);
}

TEST_P(CopyTextureTest, CopyTextureLToRGBAPremultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE, GL_RGBA, false, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureLToRGBAPremultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE, GL_RGBA, false, true, false);
}

TEST_P(CopyTextureTest, CopyTextureLToRGBAPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE, GL_RGBA, false, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureLToRGBAPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE, GL_RGBA, false, true, true);
}

TEST_P(CopyTextureTest, CopyTextureLToRGBAFlipY)
{
    testCopyTexture(GL_LUMINANCE, GL_RGBA, true, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureLToRGBAFlipY)
{
    testCopySubTexture(GL_LUMINANCE, GL_RGBA, true, false, false);
}

TEST_P(CopyTextureTest, CopyTextureLToRGBAFlipYUnmultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE, GL_RGBA, true, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureLToRGBAFlipYUnmultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE, GL_RGBA, true, false, true);
}

TEST_P(CopyTextureTest, CopyTextureLToRGBAFlipYPremultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE, GL_RGBA, true, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureLToRGBAFlipYPremultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE, GL_RGBA, true, true, false);
}

TEST_P(CopyTextureTest, CopyTextureLToRGBAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE, GL_RGBA, true, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureLToRGBAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE, GL_RGBA, true, true, true);
}

TEST_P(CopyTextureTest, CopyTextureLToBGRA)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_LUMINANCE, GL_BGRA_EXT, false, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureLToBGRA)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_LUMINANCE, GL_BGRA_EXT, false, false, false);
}

TEST_P(CopyTextureTest, CopyTextureLToBGRAUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_LUMINANCE, GL_BGRA_EXT, false, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureLToBGRAUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_LUMINANCE, GL_BGRA_EXT, false, false, true);
}

TEST_P(CopyTextureTest, CopyTextureLToBGRAPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_LUMINANCE, GL_BGRA_EXT, false, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureLToBGRAPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_LUMINANCE, GL_BGRA_EXT, false, true, false);
}

TEST_P(CopyTextureTest, CopyTextureLToBGRAPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_LUMINANCE, GL_BGRA_EXT, false, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureLToBGRAPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_LUMINANCE, GL_BGRA_EXT, false, true, true);
}

TEST_P(CopyTextureTest, CopyTextureLToBGRAFlipY)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_LUMINANCE, GL_BGRA_EXT, true, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureLToBGRAFlipY)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_LUMINANCE, GL_BGRA_EXT, true, false, false);
}

TEST_P(CopyTextureTest, CopyTextureLToBGRAFlipYUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_LUMINANCE, GL_BGRA_EXT, true, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureLToBGRAFlipYUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_LUMINANCE, GL_BGRA_EXT, true, false, true);
}

TEST_P(CopyTextureTest, CopyTextureLToBGRAFlipYPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_LUMINANCE, GL_BGRA_EXT, true, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureLToBGRAFlipYPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_LUMINANCE, GL_BGRA_EXT, true, true, false);
}

TEST_P(CopyTextureTest, CopyTextureLToBGRAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_LUMINANCE, GL_BGRA_EXT, true, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureLToBGRAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_LUMINANCE, GL_BGRA_EXT, true, true, true);
}

TEST_P(CopyTextureTest, CopyTextureLAToRGB)
{
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_RGB, false, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureLAToRGB)
{
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_RGB, false, false, false);
}

TEST_P(CopyTextureTest, CopyTextureLAToRGBUnmultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_RGB, false, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureLAToRGBUnmultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_RGB, false, false, true);
}

TEST_P(CopyTextureTest, CopyTextureLAToRGBPremultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_RGB, false, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureLAToRGBPremultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_RGB, false, true, false);
}

TEST_P(CopyTextureTest, CopyTextureLAToRGBPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_RGB, false, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureLAToRGBPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_RGB, false, true, true);
}

TEST_P(CopyTextureTest, CopyTextureLAToRGBFlipY)
{
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_RGB, true, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureLAToRGBFlipY)
{
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_RGB, true, false, false);
}

TEST_P(CopyTextureTest, CopyTextureLAToRGBFlipYUnmultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_RGB, true, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureLAToRGBFlipYUnmultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_RGB, true, false, true);
}

TEST_P(CopyTextureTest, CopyTextureLAToRGBFlipYPremultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_RGB, true, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureLAToRGBFlipYPremultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_RGB, true, true, false);
}

TEST_P(CopyTextureTest, CopyTextureLAToRGBFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_RGB, true, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureLAToRGBFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_RGB, true, true, true);
}

TEST_P(CopyTextureTest, CopyTextureLAToRGBA)
{
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_RGBA, false, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureLAToRGBA)
{
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_RGBA, false, false, false);
}

TEST_P(CopyTextureTest, CopyTextureLAToRGBAUnmultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_RGBA, false, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureLAToRGBAUnmultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_RGBA, false, false, true);
}

TEST_P(CopyTextureTest, CopyTextureLAToRGBAPremultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_RGBA, false, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureLAToRGBAPremultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_RGBA, false, true, false);
}

TEST_P(CopyTextureTest, CopyTextureLAToRGBAPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_RGBA, false, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureLAToRGBAPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_RGBA, false, true, true);
}

TEST_P(CopyTextureTest, CopyTextureLAToRGBAFlipY)
{
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_RGBA, true, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureLAToRGBAFlipY)
{
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_RGBA, true, false, false);
}

TEST_P(CopyTextureTest, CopyTextureLAToRGBAFlipYUnmultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_RGBA, true, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureLAToRGBAFlipYUnmultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_RGBA, true, false, true);
}

TEST_P(CopyTextureTest, CopyTextureLAToRGBAFlipYPremultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_RGBA, true, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureLAToRGBAFlipYPremultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_RGBA, true, true, false);
}

TEST_P(CopyTextureTest, CopyTextureLAToRGBAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_RGBA, true, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureLAToRGBAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_RGBA, true, true, true);
}

TEST_P(CopyTextureTest, CopyTextureLAToBGRA)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_BGRA_EXT, false, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureLAToBGRA)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_BGRA_EXT, false, false, false);
}

TEST_P(CopyTextureTest, CopyTextureLAToBGRAUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_BGRA_EXT, false, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureLAToBGRAUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_BGRA_EXT, false, false, true);
}

TEST_P(CopyTextureTest, CopyTextureLAToBGRAPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_BGRA_EXT, false, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureLAToBGRAPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_BGRA_EXT, false, true, false);
}

TEST_P(CopyTextureTest, CopyTextureLAToBGRAPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_BGRA_EXT, false, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureLAToBGRAPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_BGRA_EXT, false, true, true);
}

TEST_P(CopyTextureTest, CopyTextureLAToBGRAFlipY)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_BGRA_EXT, true, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureLAToBGRAFlipY)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_BGRA_EXT, true, false, false);
}

TEST_P(CopyTextureTest, CopyTextureLAToBGRAFlipYUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_BGRA_EXT, true, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureLAToBGRAFlipYUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_BGRA_EXT, true, false, true);
}

TEST_P(CopyTextureTest, CopyTextureLAToBGRAFlipYPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_BGRA_EXT, true, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureLAToBGRAFlipYPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_BGRA_EXT, true, true, false);
}

TEST_P(CopyTextureTest, CopyTextureLAToBGRAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_LUMINANCE_ALPHA, GL_BGRA_EXT, true, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureLAToBGRAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_LUMINANCE_ALPHA, GL_BGRA_EXT, true, true, true);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToRGB)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_RGB, false, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToRGB)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_RGB, false, false, false);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToRGBUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_RGB, false, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToRGBUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_RGB, false, false, true);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToRGBPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_RGB, false, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToRGBPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_RGB, false, true, false);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToRGBPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_RGB, false, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToRGBPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_RGB, false, true, true);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToRGBFlipY)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_RGB, true, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToRGBFlipY)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_RGB, true, false, false);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToRGBFlipYUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_RGB, true, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToRGBFlipYUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_RGB, true, false, true);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToRGBFlipYPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_RGB, true, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToRGBFlipYPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_RGB, true, true, false);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToRGBFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_RGB, true, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToRGBFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_RGB, true, true, true);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToRGBA)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_RGBA, false, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToRGBA)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_RGBA, false, false, false);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToRGBAUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_RGBA, false, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToRGBAUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_RGBA, false, false, true);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToRGBAPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_RGBA, false, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToRGBAPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_RGBA, false, true, false);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToRGBAPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_RGBA, false, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToRGBAPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_RGBA, false, true, true);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToRGBAFlipY)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_RGBA, true, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToRGBAFlipY)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_RGBA, true, false, false);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToRGBAFlipYUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_RGBA, true, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToRGBAFlipYUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_RGBA, true, false, true);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToRGBAFlipYPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_RGBA, true, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToRGBAFlipYPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_RGBA, true, true, false);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToRGBAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_RGBA, true, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToRGBAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_RGBA, true, true, true);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToBGRA)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_BGRA_EXT, false, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToBGRA)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_BGRA_EXT, false, false, false);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToBGRAUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_BGRA_EXT, false, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToBGRAUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_BGRA_EXT, false, false, true);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToBGRAPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_BGRA_EXT, false, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToBGRAPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_BGRA_EXT, false, true, false);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToBGRAPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_BGRA_EXT, false, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToBGRAPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_BGRA_EXT, false, true, true);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToBGRAFlipY)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_BGRA_EXT, true, false, false);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToBGRAFlipY)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_BGRA_EXT, true, false, false);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToBGRAFlipYUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_BGRA_EXT, true, false, true);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToBGRAFlipYUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_BGRA_EXT, true, false, true);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToBGRAFlipYPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_BGRA_EXT, true, true, false);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToBGRAFlipYPremultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_BGRA_EXT, true, true, false);
}

TEST_P(CopyTextureTest, CopyTextureBGRAToBGRAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopyTexture(GL_BGRA_EXT, GL_BGRA_EXT, true, true, true);
}

TEST_P(CopyTextureTest, CopySubTextureBGRAToBGRAFlipYPremultiplyAlphaUnmultiplyAlpha)
{
    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }
    testCopySubTexture(GL_BGRA_EXT, GL_BGRA_EXT, true, true, true);
}

// Test that copying to cube maps works
TEST_P(CopyTextureTest, CubeMapTarget)
{
    if (!checkExtensions())
    {
        return;
    }

    // http://anglebug.com/1932
    ANGLE_SKIP_TEST_IF(IsOSX() && IsIntel() && IsDesktopOpenGL());

    // http://anglebug.com/3145
    ANGLE_SKIP_TEST_IF(IsFuchsia() && IsIntel() && IsVulkan());

    GLColor pixels[7] = {
        GLColor(10u, 13u, 16u, 19u), GLColor(20u, 23u, 26u, 29u), GLColor(30u, 33u, 36u, 39u),
        GLColor(40u, 43u, 46u, 49u), GLColor(50u, 53u, 56u, 59u), GLColor(60u, 63u, 66u, 69u),
        GLColor(70u, 73u, 76u, 79u),
    };

    GLTexture textures[2];

    glBindTexture(GL_TEXTURE_CUBE_MAP, textures[1]);
    for (GLenum face = GL_TEXTURE_CUBE_MAP_POSITIVE_X; face <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
         face++)
    {
        glTexImage2D(face, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
    }

    for (size_t i = 0; i < 2; ++i)
    {
        for (GLenum face = GL_TEXTURE_CUBE_MAP_POSITIVE_X; face <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
             face++)
        {
            glBindTexture(GL_TEXTURE_2D, textures[0]);
            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE,
                         &pixels[face - GL_TEXTURE_CUBE_MAP_POSITIVE_X + i]);

            glCopySubTextureCHROMIUM(textures[0], 0, face, textures[1], 0, 0, 0, 0, 0, 1, 1, false,
                                     false, false);
        }

        EXPECT_GL_NO_ERROR();

        GLFramebuffer fbo;
        glBindFramebuffer(GL_FRAMEBUFFER, fbo);

        for (GLenum face = GL_TEXTURE_CUBE_MAP_POSITIVE_X; face <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
             face++)
        {
            glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, face, textures[1], 0);

            // Check that FB is complete.
            EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));

            EXPECT_PIXEL_COLOR_EQ(0, 0, pixels[face - GL_TEXTURE_CUBE_MAP_POSITIVE_X + i]);

            EXPECT_GL_NO_ERROR();
        }
    }
}

// Test BGRA to RGBA cube map copy
TEST_P(CopyTextureTest, CubeMapTargetBGRA)
{
    if (!checkExtensions())
    {
        return;
    }

    if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
    {
        return;
    }

    // http://anglebug.com/3145
    ANGLE_SKIP_TEST_IF(IsFuchsia() && IsIntel() && IsVulkan());

    GLColor pixels[7] = {
        GLColor(10u, 13u, 16u, 19u), GLColor(20u, 23u, 26u, 29u), GLColor(30u, 33u, 36u, 39u),
        GLColor(40u, 43u, 46u, 49u), GLColor(50u, 53u, 56u, 59u), GLColor(60u, 63u, 66u, 69u),
        GLColor(70u, 73u, 76u, 79u),
    };

    GLTexture textures[2];

    glBindTexture(GL_TEXTURE_CUBE_MAP, textures[1]);
    for (GLenum face = GL_TEXTURE_CUBE_MAP_POSITIVE_X; face <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
         face++)
    {
        glTexImage2D(face, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
    }

    for (size_t i = 0; i < 2; ++i)
    {
        for (GLenum face = GL_TEXTURE_CUBE_MAP_POSITIVE_X; face <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
             face++)
        {
            glBindTexture(GL_TEXTURE_2D, textures[0]);
            glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT, 1, 1, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE,
                         &pixels[face - GL_TEXTURE_CUBE_MAP_POSITIVE_X + i]);

            glCopySubTextureCHROMIUM(textures[0], 0, face, textures[1], 0, 0, 0, 0, 0, 1, 1, false,
                                     false, false);
        }

        EXPECT_GL_NO_ERROR();

        GLFramebuffer fbo;
        glBindFramebuffer(GL_FRAMEBUFFER, fbo);

        for (GLenum face = GL_TEXTURE_CUBE_MAP_POSITIVE_X; face <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
             face++)
        {
            glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, face, textures[1], 0);

            // Check that FB is complete.
            EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));

            GLColor converted = pixels[face - GL_TEXTURE_CUBE_MAP_POSITIVE_X + i];
            std::swap(converted.R, converted.B);
            EXPECT_PIXEL_COLOR_EQ(0, 0, converted);

            EXPECT_GL_NO_ERROR();
        }
    }
}

// Test cube map copies with RGB format
TEST_P(CopyTextureTest, CubeMapTargetRGB)
{
    if (!checkExtensions())
    {
        return;
    }

    // http://anglebug.com/1932
    ANGLE_SKIP_TEST_IF(IsOSX() && IsIntel() && IsDesktopOpenGL());

    // http://anglebug.com/3145
    ANGLE_SKIP_TEST_IF(IsFuchsia() && IsIntel() && IsVulkan());

    constexpr uint8_t pixels[16 * 7] = {
        0u,   3u,   6u,   10u,  13u,  16u,  0, 0, 20u,  23u,  26u,  30u,  33u,  36u,  0, 0,  // 2x2
        40u,  43u,  46u,  50u,  53u,  56u,  0, 0, 60u,  63u,  66u,  70u,  73u,  76u,  0, 0,  // 2x2
        80u,  83u,  86u,  90u,  93u,  96u,  0, 0, 100u, 103u, 106u, 110u, 113u, 116u, 0, 0,  // 2x2
        120u, 123u, 126u, 130u, 133u, 136u, 0, 0, 140u, 143u, 146u, 160u, 163u, 166u, 0, 0,  // 2x2
        170u, 173u, 176u, 180u, 183u, 186u, 0, 0, 190u, 193u, 196u, 200u, 203u, 206u, 0, 0,  // 2x2
        210u, 213u, 216u, 220u, 223u, 226u, 0, 0, 230u, 233u, 236u, 240u, 243u, 246u, 0, 0,  // 2x2
        10u,  50u,  100u, 30u,  80u,  130u, 0, 0, 60u,  110u, 160u, 90u,  140u, 200u, 0, 0,  // 2x2
    };

    GLTexture textures[2];

    glBindTexture(GL_TEXTURE_CUBE_MAP, textures[1]);
    for (GLenum face = GL_TEXTURE_CUBE_MAP_POSITIVE_X; face <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
         face++)
    {
        glTexImage2D(face, 0, GL_RGB, 2, 2, 0, GL_RGB, GL_UNSIGNED_BYTE, nullptr);
    }

    for (size_t i = 0; i < 2; ++i)
    {
        for (GLenum face = GL_TEXTURE_CUBE_MAP_POSITIVE_X; face <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
             face++)
        {
            glBindTexture(GL_TEXTURE_2D, textures[0]);
            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, GL_RGB, GL_UNSIGNED_BYTE,
                         &pixels[(face - GL_TEXTURE_CUBE_MAP_POSITIVE_X + i) * 16]);

            glCopySubTextureCHROMIUM(textures[0], 0, face, textures[1], 0, 0, 0, 0, 0, 2, 2, false,
                                     false, false);
        }

        EXPECT_GL_NO_ERROR();

        GLFramebuffer fbo;
        glBindFramebuffer(GL_FRAMEBUFFER, fbo);

        for (GLenum face = GL_TEXTURE_CUBE_MAP_POSITIVE_X; face <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
             face++)
        {
            glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, face, textures[1], 0);

            // Check that FB is complete.
            EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));

            const uint8_t *faceData = &pixels[(face - GL_TEXTURE_CUBE_MAP_POSITIVE_X + i) * 16];
            EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor(faceData[0], faceData[1], faceData[2], 255));
            EXPECT_PIXEL_COLOR_EQ(1, 0, GLColor(faceData[3], faceData[4], faceData[5], 255));
            EXPECT_PIXEL_COLOR_EQ(0, 1, GLColor(faceData[8], faceData[9], faceData[10], 255));
            EXPECT_PIXEL_COLOR_EQ(1, 1, GLColor(faceData[11], faceData[12], faceData[13], 255));

            EXPECT_GL_NO_ERROR();
        }
    }
}

// Test that copying to non-zero mipmaps works
TEST_P(CopyTextureTest, CopyToMipmap)
{
    if (!checkExtensions())
    {
        return;
    }

    ANGLE_SKIP_TEST_IF(getClientMajorVersion() < 3 &&
                       !extensionEnabled("GL_OES_fbo_render_mipmap"));

    ANGLE_SKIP_TEST_IF(IsOSX() && IsIntel());

    GLColor pixels[] = {GLColor::red, GLColor::red, GLColor::red, GLColor::red};

    GLTexture textures[2];

    glBindTexture(GL_TEXTURE_2D, textures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
    glTexImage2D(GL_TEXTURE_2D, 1, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);

    glBindTexture(GL_TEXTURE_2D, textures[1]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 4, 4, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
    glTexImage2D(GL_TEXTURE_2D, 1, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
    glTexImage2D(GL_TEXTURE_2D, 2, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);

    std::vector<std::pair<GLint, GLint>> soureDestPairs;
    soureDestPairs.push_back(std::make_pair(0, 1));

    // ES3 allows copying from non-zero mips
    if (getClientMajorVersion() >= 3)
    {
        soureDestPairs.push_back(std::make_pair(1, 2));
    }

    for (const auto &sourceDestPair : soureDestPairs)
    {
        const GLint sourceLevel = sourceDestPair.first;
        const GLint destLevel   = sourceDestPair.second;

        glCopyTextureCHROMIUM(textures[0], sourceLevel, GL_TEXTURE_2D, textures[1], destLevel,
                              GL_RGBA, GL_UNSIGNED_BYTE, false, false, false);

        EXPECT_GL_NO_ERROR();

        GLFramebuffer fbo;
        glBindFramebuffer(GL_FRAMEBUFFER, fbo);
        glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textures[1],
                               destLevel);

        // Check that FB is complete.
        EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));

        EXPECT_PIXEL_COLOR_EQ(0, 0, pixels[0]);

        EXPECT_GL_NO_ERROR();
    }
}

// Test that copying from an RGBA8 texture to RGBA4 results in exactly 4-bit precision in the result
TEST_P(CopyTextureTest, DownsampleRGBA4444)
{
    // Downsampling on copy is only guarenteed on D3D11
    ANGLE_SKIP_TEST_IF(!IsD3D11());

    GLTexture textures[2];

    GLColor pixels[] = {GLColor(0, 5, 6, 7), GLColor(17, 22, 25, 24), GLColor(34, 35, 36, 36),
                        GLColor(51, 53, 55, 55)};

    glBindTexture(GL_TEXTURE_2D, textures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);

    glBindTexture(GL_TEXTURE_2D, textures[1]);
    glCopyTextureCHROMIUM(textures[0], 0, GL_TEXTURE_2D, textures[1], 0, GL_RGBA,
                          GL_UNSIGNED_SHORT_4_4_4_4, GL_FALSE, GL_FALSE, GL_FALSE);

    GLFramebuffer fbo;
    glBindFramebuffer(GL_FRAMEBUFFER, fbo);
    glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textures[1], 0);

    EXPECT_PIXEL_COLOR_NEAR(0, 0, GLColor(0, 0, 0, 0), 1.0);
    EXPECT_PIXEL_COLOR_NEAR(1, 0, GLColor(17, 17, 17, 17), 1.0);
    EXPECT_PIXEL_COLOR_NEAR(0, 1, GLColor(34, 34, 34, 34), 1.0);
    EXPECT_PIXEL_COLOR_NEAR(1, 1, GLColor(51, 51, 51, 51), 1.0);

    testGradientDownsampleUniqueValues(GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, {16, 16, 16, 16});
}

// Test that copying from an RGBA8 texture to RGB565 results in exactly 4-bit precision in the
// result
TEST_P(CopyTextureTest, DownsampleRGB565)
{
    // Downsampling on copy is only guarenteed on D3D11
    ANGLE_SKIP_TEST_IF(!IsD3D11());

    GLTexture textures[2];

    GLColor pixels[] = {GLColor(0, 5, 2, 14), GLColor(17, 22, 25, 30), GLColor(34, 33, 36, 46),
                        GLColor(50, 54, 49, 60)};

    glBindTexture(GL_TEXTURE_2D, textures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);

    glBindTexture(GL_TEXTURE_2D, textures[1]);
    glCopyTextureCHROMIUM(textures[0], 0, GL_TEXTURE_2D, textures[1], 0, GL_RGB,
                          GL_UNSIGNED_SHORT_5_6_5, GL_FALSE, GL_FALSE, GL_FALSE);

    GLFramebuffer fbo;
    glBindFramebuffer(GL_FRAMEBUFFER, fbo);
    glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textures[1], 0);

    EXPECT_PIXEL_COLOR_NEAR(0, 0, GLColor(0, 4, 0, 255), 1.0);
    EXPECT_PIXEL_COLOR_NEAR(1, 0, GLColor(16, 20, 25, 255), 1.0);
    EXPECT_PIXEL_COLOR_NEAR(0, 1, GLColor(33, 32, 33, 255), 1.0);
    EXPECT_PIXEL_COLOR_NEAR(1, 1, GLColor(49, 53, 49, 255), 1.0);

    testGradientDownsampleUniqueValues(GL_RGB, GL_UNSIGNED_SHORT_5_6_5, {32, 64, 32, 1});
}

// Test that copying from an RGBA8 texture to RGBA5551 results in exactly 4-bit precision in the
// result
TEST_P(CopyTextureTest, DownsampleRGBA5551)
{
    // Downsampling on copy is only guarenteed on D3D11
    ANGLE_SKIP_TEST_IF(!IsD3D11());

    GLTexture textures[2];

    GLColor pixels[] = {GLColor(0, 1, 2, 3), GLColor(14, 16, 17, 18), GLColor(33, 34, 36, 46),
                        GLColor(50, 51, 52, 255)};

    glBindTexture(GL_TEXTURE_2D, textures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);

    glBindTexture(GL_TEXTURE_2D, textures[1]);
    glCopyTextureCHROMIUM(textures[0], 0, GL_TEXTURE_2D, textures[1], 0, GL_RGBA,
                          GL_UNSIGNED_SHORT_5_5_5_1, GL_FALSE, GL_FALSE, GL_FALSE);

    GLFramebuffer fbo;
    glBindFramebuffer(GL_FRAMEBUFFER, fbo);
    glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textures[1], 0);

    EXPECT_PIXEL_COLOR_NEAR(0, 0, GLColor(0, 0, 0, 0), 1.0);
    EXPECT_PIXEL_COLOR_NEAR(1, 0, GLColor(16, 16, 16, 0), 1.0);
    EXPECT_PIXEL_COLOR_NEAR(0, 1, GLColor(33, 33, 33, 0), 1.0);
    EXPECT_PIXEL_COLOR_NEAR(1, 1, GLColor(49, 49, 49, 255), 1.0);

    testGradientDownsampleUniqueValues(GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, {32, 32, 32, 2});
}

// Test to ensure that CopyTexture works with LUMINANCE texture as a destination
TEST_P(CopyTextureTestDest, Luminance)
{
    if (!checkExtensions())
    {
        return;
    }

    GLColor originalPixels(50u, 100u, 150u, 200u);
    GLColor expectedPixels(50u, 50u, 50u, 255u);

    // ReadPixels doesn't work with LUMINANCE (non-renderable), so we copy again back to an RGBA
    // texture to verify contents.
    glBindTexture(GL_TEXTURE_2D, mTextures[1]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
    glBindTexture(GL_TEXTURE_2D, mTextures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE, 1, 1, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, nullptr);

    glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_LUMINANCE,
                          GL_UNSIGNED_BYTE, false, false, false);

    EXPECT_GL_NO_ERROR();

    glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
                          GL_UNSIGNED_BYTE, false, false, false);

    EXPECT_GL_NO_ERROR();

    EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}

// Test to ensure that CopyTexture works with LUMINANCE texture as a destination with
// UnpackPremultiply parameter
TEST_P(CopyTextureTestDest, LuminanceMultiply)
{
    if (!checkExtensions())
    {
        return;
    }

    GLColor originalPixels(50u, 100u, 150u, 200u);
    GLColor expectedPixels(39u, 39u, 39u, 255u);

    // ReadPixels doesn't work with LUMINANCE (non-renderable), so we copy again back to an RGBA
    // texture to verify contents.
    glBindTexture(GL_TEXTURE_2D, mTextures[1]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
    glBindTexture(GL_TEXTURE_2D, mTextures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE, 1, 1, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, nullptr);

    glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_LUMINANCE,
                          GL_UNSIGNED_BYTE, false, true, false);

    EXPECT_GL_NO_ERROR();

    glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
                          GL_UNSIGNED_BYTE, false, false, false);

    EXPECT_GL_NO_ERROR();

    EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}

// Test to ensure that CopyTexture works with LUMINANCE texture as a destination with
// UnpackUnmultiply parameter
TEST_P(CopyTextureTestDest, LuminanceUnmultiply)
{
    if (!checkExtensions())
    {
        return;
    }

    GLColor originalPixels(50u, 100u, 150u, 200u);
    GLColor expectedPixels(64u, 64u, 64u, 255u);

    // ReadPixels doesn't work with LUMINANCE (non-renderable), so we copy again back to an RGBA
    // texture to verify contents.
    glBindTexture(GL_TEXTURE_2D, mTextures[1]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
    glBindTexture(GL_TEXTURE_2D, mTextures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE, 1, 1, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, nullptr);

    glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_LUMINANCE,
                          GL_UNSIGNED_BYTE, false, false, true);

    EXPECT_GL_NO_ERROR();

    glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
                          GL_UNSIGNED_BYTE, false, false, false);

    EXPECT_GL_NO_ERROR();

    EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}

// Test to ensure that CopyTexture works with LUMINANCE_ALPHA texture as a destination
TEST_P(CopyTextureTestDest, LuminanceAlpha)
{
    if (!checkExtensions())
    {
        return;
    }

    GLColor originalPixels(50u, 100u, 150u, 200u);
    GLColor expectedPixels(50u, 50u, 50u, 200u);

    // ReadPixels doesn't work with LUMINANCE_ALPHA (non-renderable), so we copy again back to an
    // RGBA texture to verify contents.
    glBindTexture(GL_TEXTURE_2D, mTextures[1]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
    glBindTexture(GL_TEXTURE_2D, mTextures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE_ALPHA, 1, 1, 0, GL_LUMINANCE_ALPHA,
                 GL_UNSIGNED_BYTE, nullptr);

    glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_LUMINANCE_ALPHA,
                          GL_UNSIGNED_BYTE, false, false, false);

    EXPECT_GL_NO_ERROR();

    glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
                          GL_UNSIGNED_BYTE, false, false, false);

    EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}

// Test to ensure that CopyTexture works with LUMINANCE_ALPHA texture as a destination with
// UnpackPremultiply parameter
TEST_P(CopyTextureTestDest, LuminanceAlphaMultiply)
{
    if (!checkExtensions())
    {
        return;
    }

    GLColor originalPixels(50u, 100u, 150u, 200u);
    GLColor expectedPixels(39u, 39u, 39u, 200u);

    // ReadPixels doesn't work with LUMINANCE_ALPHA (non-renderable), so we copy again back to an
    // RGBA texture to verify contents.
    glBindTexture(GL_TEXTURE_2D, mTextures[1]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
    glBindTexture(GL_TEXTURE_2D, mTextures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE_ALPHA, 1, 1, 0, GL_LUMINANCE_ALPHA,
                 GL_UNSIGNED_BYTE, nullptr);

    glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_LUMINANCE_ALPHA,
                          GL_UNSIGNED_BYTE, false, true, false);

    EXPECT_GL_NO_ERROR();

    glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
                          GL_UNSIGNED_BYTE, false, false, false);

    EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}

// Test to ensure that CopyTexture works with LUMINANCE_ALPHA texture as a destination with
// UnpackUnmultiplyAlpha parameter
TEST_P(CopyTextureTestDest, LuminanceAlphaUnmultiply)
{
    if (!checkExtensions())
    {
        return;
    }

    GLColor originalPixels(50u, 100u, 150u, 200u);
    GLColor expectedPixels(64u, 64u, 64u, 200u);

    // ReadPixels doesn't work with LUMINANCE_ALPHA (non-renderable), so we copy again back to an
    // RGBA texture to verify contents.
    glBindTexture(GL_TEXTURE_2D, mTextures[1]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
    glBindTexture(GL_TEXTURE_2D, mTextures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE_ALPHA, 1, 1, 0, GL_LUMINANCE_ALPHA,
                 GL_UNSIGNED_BYTE, nullptr);

    glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_LUMINANCE_ALPHA,
                          GL_UNSIGNED_BYTE, false, false, true);

    EXPECT_GL_NO_ERROR();

    glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
                          GL_UNSIGNED_BYTE, false, false, false);

    EXPECT_GL_NO_ERROR();

    EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}

// Test to ensure that CopyTexture works with ALPHA texture as a destination
TEST_P(CopyTextureTestDest, Alpha)
{
    if (!checkExtensions())
    {
        return;
    }

    GLColor originalPixels(50u, 100u, 150u, 155u);
    GLColor expectedPixels(0u, 0u, 0u, 155u);

    // ReadPixels doesn't work with ALPHA (non-renderable), so we copy again back to an RGBA
    // texture to verify contents.
    glBindTexture(GL_TEXTURE_2D, mTextures[1]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
    glBindTexture(GL_TEXTURE_2D, mTextures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, 1, 1, 0, GL_ALPHA, GL_UNSIGNED_BYTE, nullptr);

    glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_ALPHA,
                          GL_UNSIGNED_BYTE, false, false, false);

    EXPECT_GL_NO_ERROR();

    glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
                          GL_UNSIGNED_BYTE, false, false, false);

    EXPECT_GL_NO_ERROR();

    EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}

// Test to ensure that CopyTexture works with ALPHA texture as a destination with
// UnpackPremultiplyAlpha parameter
TEST_P(CopyTextureTestDest, AlphaMultiply)
{
    if (!checkExtensions())
    {
        return;
    }

    GLColor originalPixels(50u, 100u, 150u, 155u);
    GLColor expectedPixels(0u, 0u, 0u, 155u);

    // ReadPixels doesn't work with ALPHA (non-renderable), so we copy again back to an RGBA
    // texture to verify contents.
    glBindTexture(GL_TEXTURE_2D, mTextures[1]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
    glBindTexture(GL_TEXTURE_2D, mTextures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, 1, 1, 0, GL_ALPHA, GL_UNSIGNED_BYTE, nullptr);

    glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_ALPHA,
                          GL_UNSIGNED_BYTE, false, true, false);

    EXPECT_GL_NO_ERROR();

    glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
                          GL_UNSIGNED_BYTE, false, false, false);

    EXPECT_GL_NO_ERROR();

    EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}

// Test to ensure that CopyTexture works with ALPHA texture as a destination with
// UnpackUnmultiplyAlpha parameter
TEST_P(CopyTextureTestDest, AlphaUnmultiply)
{
    if (!checkExtensions())
    {
        return;
    }

    GLColor originalPixels(50u, 100u, 150u, 155u);
    GLColor expectedPixels(0u, 0u, 0u, 155u);

    // ReadPixels doesn't work with ALPHA (non-renderable), so we copy again back to an RGBA
    // texture to verify contents.
    glBindTexture(GL_TEXTURE_2D, mTextures[1]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
    glBindTexture(GL_TEXTURE_2D, mTextures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, 1, 1, 0, GL_ALPHA, GL_UNSIGNED_BYTE, nullptr);

    glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_ALPHA,
                          GL_UNSIGNED_BYTE, false, false, true);

    EXPECT_GL_NO_ERROR();

    glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
                          GL_UNSIGNED_BYTE, false, false, false);

    EXPECT_GL_NO_ERROR();

    EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}

// Test to ensure that CopyTexture uses the correct ALPHA passthrough shader to ensure RGB channels
// are set to 0.
TEST_P(CopyTextureTestDest, AlphaCopyWithRGB)
{
    ANGLE_SKIP_TEST_IF(!checkExtensions());

    GLColor originalPixels(50u, 100u, 150u, 155u);
    GLColor expectedPixels(0u, 0u, 0u, 155u);

    // ReadPixels doesn't work with ALPHA (non-renderable), so we copy again back to an RGBA
    // texture to verify contents.
    glBindTexture(GL_TEXTURE_2D, mTextures[1]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &originalPixels);
    glBindTexture(GL_TEXTURE_2D, mTextures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, 1, 1, 0, GL_ALPHA, GL_HALF_FLOAT_OES, nullptr);

    glCopyTextureCHROMIUM(mTextures[1], 0, GL_TEXTURE_2D, mTextures[0], 0, GL_ALPHA,
                          GL_HALF_FLOAT_OES, false, false, false);

    EXPECT_GL_NO_ERROR();

    glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
                          GL_UNSIGNED_BYTE, false, false, false);

    EXPECT_GL_NO_ERROR();

    EXPECT_PIXEL_COLOR_EQ(0, 0, expectedPixels);
}

// Test to ensure that CopyTexture will fail with a non-zero level and NPOT texture in WebGL
TEST_P(CopyTextureTestWebGL, NPOT)
{
    if (extensionRequestable("GL_CHROMIUM_copy_texture"))
    {
        glRequestExtensionANGLE("GL_CHROMIUM_copy_texture");
    }
    ANGLE_SKIP_TEST_IF(!extensionEnabled("GL_CHROMIUM_copy_texture"));

    std::vector<GLColor> pixelData(10 * 10, GLColor::red);

    glBindTexture(GL_TEXTURE_2D, mTextures[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 10, 10, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixelData.data());

    // Do a basic copy to make sure things work
    glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 0, GL_RGBA,
                          GL_UNSIGNED_BYTE, false, false, false);

    EXPECT_GL_NO_ERROR();

    EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red);

    // Do the same operation with destLevel 1, which should fail
    glCopyTextureCHROMIUM(mTextures[0], 0, GL_TEXTURE_2D, mTextures[1], 1, GL_RGBA,
                          GL_UNSIGNED_BYTE, false, false, false);

    EXPECT_GL_ERROR(GL_INVALID_VALUE);
}

// Test the newly added ES3 unorm formats
TEST_P(CopyTextureTestES3, ES3UnormFormats)
{
    if (!checkExtensions())
    {
        return;
    }

    auto testOutput = [this](GLuint texture, const GLColor &expectedColor) {
        constexpr char kVS[] =
            "#version 300 es\n"
            "in vec4 position;\n"
            "out vec2 texcoord;\n"
            "void main()\n"
            "{\n"
            "    gl_Position = vec4(position.xy, 0.0, 1.0);\n"
            "    texcoord = (position.xy * 0.5) + 0.5;\n"
            "}\n";

        constexpr char kFS[] =
            "#version 300 es\n"
            "precision mediump float;\n"
            "uniform sampler2D tex;\n"
            "in vec2 texcoord;\n"
            "out vec4 color;\n"
            "void main()\n"
            "{\n"
            "    color = texture(tex, texcoord);\n"
            "}\n";

        ANGLE_GL_PROGRAM(program, kVS, kFS);
        glUseProgram(program);

        GLRenderbuffer rbo;
        glBindRenderbuffer(GL_RENDERBUFFER, rbo);
        glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, 1, 1);

        GLFramebuffer fbo;
        glBindFramebuffer(GL_FRAMEBUFFER, fbo);
        glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, rbo);

        glActiveTexture(GL_TEXTURE0);
        glBindTexture(GL_TEXTURE_2D, texture);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
        glUniform1i(glGetUniformLocation(program.get(), "tex"), 0);

        drawQuad(program, "position", 0.5f, 1.0f, true);

        EXPECT_PIXEL_COLOR_NEAR(0, 0, expectedColor, 1.0);
    };

    auto testCopyCombination = [this, testOutput](GLenum sourceInternalFormat, GLenum sourceFormat,
                                                  GLenum sourceType, const GLColor &sourceColor,
                                                  GLenum destInternalFormat, GLenum destType,
                                                  bool flipY, bool premultiplyAlpha,
                                                  bool unmultiplyAlpha,
                                                  const GLColor &expectedColor) {
        GLTexture sourceTexture;
        glBindTexture(GL_TEXTURE_2D, sourceTexture);
        glTexImage2D(GL_TEXTURE_2D, 0, sourceInternalFormat, 1, 1, 0, sourceFormat, sourceType,
                     &sourceColor);

        GLTexture destTexture;
        glBindTexture(GL_TEXTURE_2D, destTexture);

        glCopyTextureCHROMIUM(sourceTexture, 0, GL_TEXTURE_2D, destTexture, 0, destInternalFormat,
                              destType, flipY, premultiplyAlpha, unmultiplyAlpha);
        ASSERT_GL_NO_ERROR();

        testOutput(destTexture, expectedColor);
    };

    auto testSubCopyCombination = [this, testOutput](
                                      GLenum sourceInternalFormat, GLenum sourceFormat,
                                      GLenum sourceType, const GLColor &sourceColor,
                                      GLenum destInternalFormat, GLenum destFormat, GLenum destType,
                                      bool flipY, bool premultiplyAlpha, bool unmultiplyAlpha,
                                      const GLColor &expectedColor) {
        GLTexture sourceTexture;
        glBindTexture(GL_TEXTURE_2D, sourceTexture);
        glTexImage2D(GL_TEXTURE_2D, 0, sourceInternalFormat, 1, 1, 0, sourceFormat, sourceType,
                     &sourceColor);

        GLTexture destTexture;
        glBindTexture(GL_TEXTURE_2D, destTexture);

        glTexImage2D(GL_TEXTURE_2D, 0, destInternalFormat, 1, 1, 0, destFormat, destType, nullptr);
        glCopySubTextureCHROMIUM(sourceTexture, 0, GL_TEXTURE_2D, destTexture, 0, 0, 0, 0, 0, 1, 1,
                                 flipY, premultiplyAlpha, unmultiplyAlpha);
        ASSERT_GL_NO_ERROR();

        testOutput(destTexture, expectedColor);
    };

    // New LUMA source formats
    testCopyCombination(GL_LUMINANCE, GL_LUMINANCE, GL_UNSIGNED_BYTE, GLColor(128, 0, 0, 0), GL_RGB,
                        GL_UNSIGNED_BYTE, false, false, false, GLColor(128, 128, 128, 255));
    testCopyCombination(GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE,
                        GLColor(128, 64, 0, 0), GL_RGB, GL_UNSIGNED_BYTE, false, false, false,
                        GLColor(128, 128, 128, 255));
    testCopyCombination(GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE,
                        GLColor(128, 64, 0, 0), GL_RGB, GL_UNSIGNED_BYTE, false, true, false,
                        GLColor(32, 32, 32, 255));
    testCopyCombination(GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE,
                        GLColor(128, 128, 0, 0), GL_RGB, GL_UNSIGNED_BYTE, false, false, true,
                        GLColor(255, 255, 255, 255));
    testCopyCombination(GL_ALPHA, GL_ALPHA, GL_UNSIGNED_BYTE, GLColor(128, 0, 0, 0), GL_RGBA,
                        GL_UNSIGNED_BYTE, false, false, false, GLColor(0, 0, 0, 128));
    testCopyCombination(GL_ALPHA, GL_ALPHA, GL_UNSIGNED_BYTE, GLColor(128, 0, 0, 0), GL_RGBA,
                        GL_UNSIGNED_BYTE, false, false, true, GLColor(0, 0, 0, 128));
    testCopyCombination(GL_ALPHA, GL_ALPHA, GL_UNSIGNED_BYTE, GLColor(128, 0, 0, 0), GL_RGBA,
                        GL_UNSIGNED_BYTE, false, true, false, GLColor(0, 0, 0, 128));

    // New sRGB dest formats
    if (extensionEnabled("GL_EXT_sRGB"))
    {
        testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_SRGB,
                            GL_UNSIGNED_BYTE, false, false, false, GLColor(55, 13, 4, 255));
        testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_SRGB,
                            GL_UNSIGNED_BYTE, false, true, false, GLColor(13, 4, 1, 255));
        testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128),
                            GL_SRGB_ALPHA_EXT, GL_UNSIGNED_BYTE, false, false, false,
                            GLColor(55, 13, 4, 128));

        testSubCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128),
                               GL_SRGB, GL_SRGB, GL_UNSIGNED_BYTE, false, false, false,
                               GLColor(55, 13, 4, 255));
        testSubCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128),
                               GL_SRGB, GL_SRGB, GL_UNSIGNED_BYTE, false, true, false,
                               GLColor(13, 4, 1, 255));
        testSubCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128),
                               GL_SRGB_ALPHA_EXT, GL_SRGB_ALPHA_EXT, GL_UNSIGNED_BYTE, false, false,
                               false, GLColor(55, 13, 4, 128));
    }
}

// Test the newly added ES3 float formats
TEST_P(CopyTextureTestES3, ES3FloatFormats)
{
    if (!checkExtensions())
    {
        return;
    }

    ANGLE_SKIP_TEST_IF(!extensionEnabled("GL_EXT_color_buffer_float"));

    auto testOutput = [this](GLuint texture, const GLColor32F &expectedColor) {
        constexpr char kVS[] =
            "#version 300 es\n"
            "in vec4 position;\n"
            "out vec2 texcoord;\n"
            "void main()\n"
            "{\n"
            "    gl_Position = vec4(position.xy, 0.0, 1.0);\n"
            "    texcoord = (position.xy * 0.5) + 0.5;\n"
            "}\n";

        constexpr char kFS[] =
            "#version 300 es\n"
            "precision mediump float;\n"
            "uniform sampler2D tex;\n"
            "in vec2 texcoord;\n"
            "out vec4 color;\n"
            "void main()\n"
            "{\n"
            "    color = texture(tex, texcoord);\n"
            "}\n";

        ANGLE_GL_PROGRAM(program, kVS, kFS);
        glUseProgram(program);

        GLRenderbuffer rbo;
        glBindRenderbuffer(GL_RENDERBUFFER, rbo);
        glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA32F, 1, 1);

        GLFramebuffer fbo;
        glBindFramebuffer(GL_FRAMEBUFFER, fbo);
        glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, rbo);

        glActiveTexture(GL_TEXTURE0);
        glBindTexture(GL_TEXTURE_2D, texture);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
        glUniform1i(glGetUniformLocation(program.get(), "tex"), 0);

        drawQuad(program, "position", 0.5f, 1.0f, true);

        EXPECT_PIXEL_COLOR32F_NEAR(0, 0, expectedColor, 0.05);
    };

    auto testCopyCombination = [this, testOutput](GLenum sourceInternalFormat, GLenum sourceFormat,
                                                  GLenum sourceType, const GLColor &sourceColor,
                                                  GLenum destInternalFormat, GLenum destType,
                                                  bool flipY, bool premultiplyAlpha,
                                                  bool unmultiplyAlpha,
                                                  const GLColor32F &expectedColor) {
        GLTexture sourceTexture;
        glBindTexture(GL_TEXTURE_2D, sourceTexture);
        glTexImage2D(GL_TEXTURE_2D, 0, sourceInternalFormat, 1, 1, 0, sourceFormat, sourceType,
                     &sourceColor);

        GLTexture destTexture;
        glBindTexture(GL_TEXTURE_2D, destTexture);

        glCopyTextureCHROMIUM(sourceTexture, 0, GL_TEXTURE_2D, destTexture, 0, destInternalFormat,
                              destType, flipY, premultiplyAlpha, unmultiplyAlpha);
        ASSERT_GL_NO_ERROR();

        testOutput(destTexture, expectedColor);
    };

    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGBA32F,
                        GL_FLOAT, false, false, false, GLColor32F(0.5f, 0.25f, 0.125f, 0.5f));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGBA32F,
                        GL_FLOAT, false, true, false, GLColor32F(0.25f, 0.125f, 0.0625f, 0.5f));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGBA32F,
                        GL_FLOAT, false, false, true, GLColor32F(1.0f, 0.5f, 0.25f, 0.5f));

    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_R16F,
                        GL_FLOAT, false, false, false, GLColor32F(0.5f, 0.0f, 0.0f, 1.0f));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_R16F,
                        GL_FLOAT, false, true, false, GLColor32F(0.25f, 0.0f, 0.0f, 1.0f));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_R16F,
                        GL_FLOAT, false, false, true, GLColor32F(1.0f, 0.0f, 0.0f, 1.0f));

    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RG16F,
                        GL_FLOAT, false, false, false, GLColor32F(0.5f, 0.25f, 0.0f, 1.0f));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RG16F,
                        GL_FLOAT, false, true, false, GLColor32F(0.25f, 0.125f, 0.0f, 1.0f));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RG16F,
                        GL_FLOAT, false, false, true, GLColor32F(1.0f, 0.5f, 0.0f, 1.0f));

    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGB16F,
                        GL_FLOAT, false, false, false, GLColor32F(0.5f, 0.25f, 0.125f, 1.0f));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGB16F,
                        GL_FLOAT, false, true, false, GLColor32F(0.25f, 0.125f, 0.0625f, 1.0f));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGB16F,
                        GL_FLOAT, false, false, true, GLColor32F(1.0f, 0.5f, 0.25f, 1.0f));

    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128),
                        GL_R11F_G11F_B10F, GL_FLOAT, false, false, false,
                        GLColor32F(0.5f, 0.25f, 0.125f, 1.0f));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128),
                        GL_R11F_G11F_B10F, GL_FLOAT, false, true, false,
                        GLColor32F(0.25f, 0.125f, 0.0625f, 1.0f));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128),
                        GL_R11F_G11F_B10F, GL_FLOAT, false, false, true,
                        GLColor32F(1.0f, 0.5f, 0.25f, 1.0f));

    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGB9_E5,
                        GL_FLOAT, false, false, false, GLColor32F(0.5f, 0.25f, 0.125f, 1.0f));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGB9_E5,
                        GL_FLOAT, false, true, false, GLColor32F(0.25f, 0.125f, 0.0625f, 1.0f));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGB9_E5,
                        GL_FLOAT, false, false, true, GLColor32F(1.0f, 0.5f, 0.25f, 1.0f));
}

// Test the newly added ES3 unsigned integer formats
TEST_P(CopyTextureTestES3, ES3UintFormats)
{
    ANGLE_SKIP_TEST_IF(IsLinux() && IsOpenGL() && IsIntel());

    if (!checkExtensions())
    {
        return;
    }

    using GLColor32U = std::tuple<GLuint, GLuint, GLuint, GLuint>;

    auto testOutput = [this](GLuint texture, const GLColor32U &expectedColor) {
        constexpr char kVS[] =
            "#version 300 es\n"
            "in vec4 position;\n"
            "out vec2 texcoord;\n"
            "void main()\n"
            "{\n"
            "    gl_Position = vec4(position.xy, 0.0, 1.0);\n"
            "    texcoord = (position.xy * 0.5) + 0.5;\n"
            "}\n";

        constexpr char kFS[] =
            "#version 300 es\n"
            "precision mediump float;\n"
            "precision mediump usampler2D;\n"
            "in vec2 texcoord;\n"
            "uniform usampler2D tex;\n"
            "out uvec4 color;\n"
            "void main()\n"
            "{\n"
            "    color = texture(tex, texcoord);\n"
            "}\n";

        ANGLE_GL_PROGRAM(program, kVS, kFS);
        glUseProgram(program);

        GLRenderbuffer rbo;
        glBindRenderbuffer(GL_RENDERBUFFER, rbo);
        glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8UI, 1, 1);

        GLFramebuffer fbo;
        glBindFramebuffer(GL_FRAMEBUFFER, fbo);
        glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, rbo);

        glActiveTexture(GL_TEXTURE0);
        glBindTexture(GL_TEXTURE_2D, texture);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
        glUniform1i(glGetUniformLocation(program.get(), "tex"), 0);

        drawQuad(program, "position", 0.5f, 1.0f, true);
        ASSERT_GL_NO_ERROR();

        GLuint pixel[4] = {0};
        glReadPixels(0, 0, 1, 1, GL_RGBA_INTEGER, GL_UNSIGNED_INT, pixel);
        ASSERT_GL_NO_ERROR();
        EXPECT_NEAR(std::get<0>(expectedColor), pixel[0], 1);
        EXPECT_NEAR(std::get<1>(expectedColor), pixel[1], 1);
        EXPECT_NEAR(std::get<2>(expectedColor), pixel[2], 1);
        EXPECT_NEAR(std::get<3>(expectedColor), pixel[3], 1);
    };

    auto testCopyCombination = [this, testOutput](GLenum sourceInternalFormat, GLenum sourceFormat,
                                                  GLenum sourceType, const GLColor &sourceColor,
                                                  GLenum destInternalFormat, GLenum destType,
                                                  bool flipY, bool premultiplyAlpha,
                                                  bool unmultiplyAlpha,
                                                  const GLColor32U &expectedColor) {
        GLTexture sourceTexture;
        glBindTexture(GL_TEXTURE_2D, sourceTexture);
        glTexImage2D(GL_TEXTURE_2D, 0, sourceInternalFormat, 1, 1, 0, sourceFormat, sourceType,
                     &sourceColor);

        GLTexture destTexture;
        glBindTexture(GL_TEXTURE_2D, destTexture);

        glCopyTextureCHROMIUM(sourceTexture, 0, GL_TEXTURE_2D, destTexture, 0, destInternalFormat,
                              destType, flipY, premultiplyAlpha, unmultiplyAlpha);
        ASSERT_GL_NO_ERROR();

        testOutput(destTexture, expectedColor);
    };

    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGBA8UI,
                        GL_UNSIGNED_BYTE, false, false, false, GLColor32U(128, 64, 32, 128));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGBA8UI,
                        GL_UNSIGNED_BYTE, false, true, false, GLColor32U(64, 32, 16, 128));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGBA8UI,
                        GL_UNSIGNED_BYTE, false, false, true, GLColor32U(255, 128, 64, 128));

    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGB8UI,
                        GL_UNSIGNED_BYTE, false, false, false, GLColor32U(128, 64, 32, 1));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGB8UI,
                        GL_UNSIGNED_BYTE, false, true, false, GLColor32U(64, 32, 16, 1));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RGB8UI,
                        GL_UNSIGNED_BYTE, false, false, true, GLColor32U(255, 128, 64, 1));

    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RG8UI,
                        GL_UNSIGNED_BYTE, false, false, false, GLColor32U(128, 64, 0, 1));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RG8UI,
                        GL_UNSIGNED_BYTE, false, true, false, GLColor32U(64, 32, 0, 1));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_RG8UI,
                        GL_UNSIGNED_BYTE, false, false, true, GLColor32U(255, 128, 0, 1));

    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_R8UI,
                        GL_UNSIGNED_BYTE, false, false, false, GLColor32U(128, 0, 0, 1));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(128, 64, 32, 128), GL_R8UI,
                        GL_UNSIGNED_BYTE, false, true, false, GLColor32U(64, 0, 0, 1));
    testCopyCombination(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, GLColor(120, 64, 32, 128), GL_R8UI,
                        GL_UNSIGNED_BYTE, false, false, true, GLColor32U(240, 0, 0, 1));
}

// Use this to select which configurations (e.g. which renderer, which GLES major version) these
// tests should be run against.
ANGLE_INSTANTIATE_TEST(CopyTextureTest,
                       ES2_D3D9(),
                       ES2_D3D11(),
                       ES2_OPENGL(),
                       ES2_OPENGLES(),
                       ES2_VULKAN());
ANGLE_INSTANTIATE_TEST(CopyTextureTestWebGL,
                       ES2_D3D9(),
                       ES2_D3D11(),
                       ES2_OPENGL(),
                       ES2_OPENGLES(),
                       ES2_VULKAN());
ANGLE_INSTANTIATE_TEST(CopyTextureTestDest, ES2_D3D11());
ANGLE_INSTANTIATE_TEST(CopyTextureTestES3, ES3_D3D11(), ES3_OPENGL(), ES3_OPENGLES());

}  // namespace angle
kc3-lang/angle/src/tests/gl_tests/CopyTextureTest.cpp

Commit

kc3-lang/angle /src/tests/gl_tests/CopyTextureTest.cpp
