C++ MAGNUM_VERIFY_NO_ERROR函数代码示例

void MultisampleTextureGLTest::bind2DArray() {
    #ifndef MAGNUM_TARGET_GLES
    if(!Context::current().isExtensionSupported<Extensions::GL::ARB::texture_multisample>())
        CORRADE_SKIP(Extensions::GL::ARB::texture_multisample::string() + std::string(" is not supported."));
    #else
    if(!Context::current().isExtensionSupported<Extensions::GL::OES::texture_storage_multisample_2d_array>())
        CORRADE_SKIP(Extensions::GL::OES::texture_storage_multisample_2d_array::string() + std::string(" is not supported."));
    #endif

    MultisampleTexture2DArray texture;
    texture.bind(15);

    MAGNUM_VERIFY_NO_ERROR();

    AbstractTexture::unbind(15);

    MAGNUM_VERIFY_NO_ERROR();

    AbstractTexture::bind(7, {&texture, nullptr, &texture});

    MAGNUM_VERIFY_NO_ERROR();

    AbstractTexture::unbind(7, 3);

    MAGNUM_VERIFY_NO_ERROR();
}

void BufferGLTest::map() {
    #ifdef MAGNUM_TARGET_GLES
    if(!Context::current()->isExtensionSupported<Extensions::GL::OES::mapbuffer>())
        CORRADE_SKIP(Extensions::GL::OES::mapbuffer::string() + std::string(" is not supported"));
    #endif
    Buffer buffer;

    constexpr char data[] = {2, 7, 5, 13, 25};
    buffer.setData(data, BufferUsage::StaticDraw);

    #ifndef MAGNUM_TARGET_GLES
    char* contents = buffer.map<char>(Buffer::MapAccess::ReadWrite);
    #else
    char* contents = buffer.map<char>(Buffer::MapAccess::WriteOnly);
    #endif
    MAGNUM_VERIFY_NO_ERROR();

    CORRADE_VERIFY(contents);
    #ifndef MAGNUM_TARGET_GLES2
    CORRADE_COMPARE(contents[2], 5);
    #endif
    contents[3] = 107;

    CORRADE_VERIFY(buffer.unmap());
    MAGNUM_VERIFY_NO_ERROR();

    /** @todo How to verify the contents in ES? */
    #ifndef MAGNUM_TARGET_GLES
    Containers::Array<char> changedContents = buffer.data<char>();
    CORRADE_COMPARE(changedContents.size(), 5);
    CORRADE_COMPARE(changedContents[3], 107);
    #endif
}

void FramebufferGLTest::constructMove() {
    #ifndef MAGNUM_TARGET_GLES
    if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::framebuffer_object>())
        CORRADE_SKIP(Extensions::GL::ARB::framebuffer_object::string() + std::string(" is not available."));
    #endif

    Framebuffer a({{32, 16}, {128, 256}});
    const Int id = a.id();

    MAGNUM_VERIFY_NO_ERROR();
    CORRADE_VERIFY(id > 0);

    Framebuffer b(std::move(a));

    CORRADE_COMPARE(a.id(), 0);
    CORRADE_COMPARE(b.id(), id);
    CORRADE_COMPARE(b.viewport(), Range2Di({32, 16}, {128, 256}));

    Framebuffer c({{128, 256}, {32, 16}});
    const Int cId = c.id();
    c = std::move(b);

    MAGNUM_VERIFY_NO_ERROR();
    CORRADE_VERIFY(cId > 0);
    CORRADE_COMPARE(b.id(), cId);
    CORRADE_COMPARE(c.id(), id);
    CORRADE_COMPARE(c.viewport(), Range2Di({32, 16}, {128, 256}));
}

void BufferTextureGLTest::bind() {
    if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::texture_buffer_object>())
        CORRADE_SKIP(Extensions::GL::ARB::texture_buffer_object::string() + std::string(" is not supported."));

    BufferTexture texture;

    if(Context::current()->isExtensionSupported<Extensions::GL::ARB::multi_bind>()) {
        CORRADE_EXPECT_FAIL("With ARB_multi_bind the texture must be associated with given target at least once before binding it");
        Buffer buffer;
        constexpr UnsignedByte data[] = {
            0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
            0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
        };
        buffer.setData(data, BufferUsage::StaticDraw);
        texture.setBuffer(BufferTextureFormat::R8UI, buffer);
        CORRADE_VERIFY(false);
    }

    texture.bind(15);

    MAGNUM_VERIFY_NO_ERROR();

    AbstractTexture::unbind(15);

    MAGNUM_VERIFY_NO_ERROR();

    AbstractTexture::bind(7, {&texture, nullptr, &texture});

    MAGNUM_VERIFY_NO_ERROR();
}

void MultisampleTextureGLTest::bindImage2D() {
    #ifndef MAGNUM_TARGET_GLES
    if(!Context::current().isExtensionSupported<Extensions::GL::ARB::texture_multisample>())
        CORRADE_SKIP(Extensions::GL::ARB::texture_multisample::string() + std::string(" is not supported."));
    if(!Context::current().isExtensionSupported<Extensions::GL::ARB::shader_image_load_store>())
        CORRADE_SKIP(Extensions::GL::ARB::shader_image_load_store::string() + std::string(" is not supported."));
    #else
    if(!Context::current().isExtensionSupported<Extensions::GL::OES::texture_storage_multisample_2d_array>())
        CORRADE_SKIP(Extensions::GL::OES::texture_storage_multisample_2d_array::string() + std::string(" is not supported."));
    if(!Context::current().isVersionSupported(Version::GLES310))
        CORRADE_SKIP("OpenGL ES 3.1 is not supported.");
    #endif

    MultisampleTexture2D texture;
    texture.setStorage(4, TextureFormat::RGBA8, Vector2i{32})
        .bindImage(2, ImageAccess::ReadWrite, ImageFormat::RGBA8);

    MAGNUM_VERIFY_NO_ERROR();

    AbstractTexture::unbindImage(2);

    MAGNUM_VERIFY_NO_ERROR();

    #ifndef MAGNUM_TARGET_GLES
    AbstractTexture::bindImages(1, {&texture, nullptr, &texture});

    MAGNUM_VERIFY_NO_ERROR();

    AbstractTexture::unbindImages(1, 3);

    MAGNUM_VERIFY_NO_ERROR();
    #endif
}

void TextureGLTest::subImageBuffer() {
    if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::texture_rectangle>())
        CORRADE_SKIP(Extensions::GL::ARB::texture_rectangle::string() + std::string(" is not supported."));

    constexpr UnsignedByte zero[4*4*4] = {};
    constexpr UnsignedByte subData[] = { 0x00, 0x01, 0x02, 0x03,
                                         0x04, 0x05, 0x06, 0x07,
                                         0x08, 0x09, 0x0a, 0x0b,
                                         0x0c, 0x0d, 0x0e, 0x0f };
    RectangleTexture texture;
    texture.setImage(TextureFormat::RGBA8,
        ImageReference2D(ColorFormat::RGBA, ColorType::UnsignedByte, Vector2i(4), zero));
    texture.setSubImage(Vector2i(1),
        BufferImage2D(ColorFormat::RGBA, ColorType::UnsignedByte, Vector2i(2), subData, BufferUsage::StaticDraw));

    MAGNUM_VERIFY_NO_ERROR();

    BufferImage2D image(ColorFormat::RGBA, ColorType::UnsignedByte);
    texture.image(image, BufferUsage::StaticRead);
    const auto imageData = image.buffer().data<UnsignedByte>();

    MAGNUM_VERIFY_NO_ERROR();

    CORRADE_COMPARE(image.size(), Vector2i(4));
    CORRADE_COMPARE_AS(std::vector<UnsignedByte>(imageData.begin(), imageData.end()), (std::vector<UnsignedByte>{
        0, 0, 0, 0,    0,    0,    0,    0,    0,    0,    0,    0, 0, 0, 0, 0,
        0, 0, 0, 0, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0, 0, 0, 0,
        0, 0, 0, 0, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0, 0, 0, 0,
        0, 0, 0, 0,    0,    0,    0,    0,    0,    0,    0,    0, 0, 0, 0, 0
    }), TestSuite::Compare::Container);
}

void FramebufferGLTest::invalidate() {
    #ifndef MAGNUM_TARGET_GLES
    if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::framebuffer_object>())
        CORRADE_SKIP(Extensions::GL::ARB::framebuffer_object::string() + std::string(" is not available."));
    if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::invalidate_subdata>())
        CORRADE_SKIP(Extensions::GL::ARB::invalidate_subdata::string() + std::string(" is not available."));
    #elif defined(MAGNUM_TARGET_GLES2)
    if(!Context::current()->isExtensionSupported<Extensions::GL::EXT::discard_framebuffer>())
        CORRADE_SKIP(Extensions::GL::EXT::discard_framebuffer::string() + std::string(" is not available."));
    #endif

    Renderbuffer color;
    #ifndef MAGNUM_TARGET_GLES2
    color.setStorage(RenderbufferFormat::RGBA8, Vector2i(128));
    #else
    color.setStorage(RenderbufferFormat::RGBA4, Vector2i(128));
    #endif

    Renderbuffer stencil;
    stencil.setStorage(RenderbufferFormat::StencilIndex8, Vector2i(128));

    Framebuffer framebuffer({{}, Vector2i(128)});
    framebuffer.attachRenderbuffer(Framebuffer::ColorAttachment(0), color)
               .attachRenderbuffer(Framebuffer::BufferAttachment::Stencil, stencil);

    MAGNUM_VERIFY_NO_ERROR();

    framebuffer.invalidate({Framebuffer::InvalidationAttachment::Depth, Framebuffer::ColorAttachment(0)});

    MAGNUM_VERIFY_NO_ERROR();
}

void TransformFeedbackGLTest::attachRange() {
    XfbShader shader;

    Buffer input;
    input.setData(inputData, BufferUsage::StaticDraw);
    Buffer output;
    output.setData({nullptr, 512 + 2*sizeof(Vector2)}, BufferUsage::StaticRead);

    Mesh mesh;
    mesh.setPrimitive(MeshPrimitive::Points)
        .addVertexBuffer(input, 0, XfbShader::Input{})
        .setCount(2);

    TransformFeedback feedback;
    feedback.attachBuffer(0, output, 256, 2*sizeof(Vector2));

    MAGNUM_VERIFY_NO_ERROR();

    Renderer::enable(Renderer::Feature::RasterizerDiscard);
    feedback.begin(shader, TransformFeedback::PrimitiveMode::Points);
    mesh.draw(shader);
    feedback.end();

    MAGNUM_VERIFY_NO_ERROR();

    Vector2* data = reinterpret_cast<Vector2*>(output.map(256, 2*sizeof(Vector2), Buffer::MapFlag::Read));
    CORRADE_COMPARE(data[0], Vector2(1.0f, -1.0f));
    CORRADE_COMPARE(data[1], Vector2(0.0f, 0.0f));
    output.unmap();
}

void AbstractQueryGLTest::constructMove() {
    #ifdef MAGNUM_TARGET_GLES2
    if(!Context::current()->isExtensionSupported<Extensions::GL::EXT::occlusion_query_boolean>())
        CORRADE_SKIP(Extensions::GL::EXT::occlusion_query_boolean::string() + std::string(" is not supported."));
    #endif

    SampleQuery a;
    const Int id = a.id();

    MAGNUM_VERIFY_NO_ERROR();
    CORRADE_VERIFY(id > 0);

    SampleQuery b(std::move(a));

    CORRADE_COMPARE(a.id(), 0);
    CORRADE_COMPARE(b.id(), id);

    SampleQuery c;
    const Int cId = c.id();
    c = std::move(b);

    MAGNUM_VERIFY_NO_ERROR();
    CORRADE_VERIFY(cId > 0);
    CORRADE_COMPARE(b.id(), cId);
    CORRADE_COMPARE(c.id(), id);
}

void MultisampleTextureGLTest::bind2D() {
    #ifndef MAGNUM_TARGET_GLES
    if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::texture_multisample>())
        CORRADE_SKIP(Extensions::GL::ARB::texture_multisample::string() + std::string(" is not supported."));
    #else
    if(!Context::current()->isVersionSupported(Version::GLES310))
        CORRADE_SKIP("OpenGL ES 3.1 is not supported.");
    #endif

    MultisampleTexture2D texture;
    texture.bind(15);

    MAGNUM_VERIFY_NO_ERROR();

    AbstractTexture::unbind(15);

    MAGNUM_VERIFY_NO_ERROR();

    AbstractTexture::bind(7, {&texture, nullptr, &texture});

    MAGNUM_VERIFY_NO_ERROR();

    AbstractTexture::unbind(7, 3);

    MAGNUM_VERIFY_NO_ERROR();
}

void SampleQueryGLTest::conditionalRender() {
    if(!Context::current()->isExtensionSupported<Extensions::GL::NV::conditional_render>())
        CORRADE_SKIP(Extensions::GL::NV::conditional_render::string() + std::string(" is not available."));

    Renderbuffer renderbuffer;
    renderbuffer.setStorage(RenderbufferFormat::RGBA8, Vector2i(32));

    Framebuffer framebuffer({{}, Vector2i(32)});
    framebuffer.attachRenderbuffer(Framebuffer::ColorAttachment(0), renderbuffer);

    Buffer buffer;
    constexpr Vector2 triangle[] = {{-1.0f, 1.0f}, {-1.0f, -3.0f}, {3.0f, 1.0f}};
    buffer.setData(triangle, BufferUsage::StaticDraw);

    Mesh mesh;
    mesh.setPrimitive(MeshPrimitive::Triangles)
        .setCount(3)
        .addVertexBuffer(buffer, 0, Attribute<0, Vector2>{});

    MyShader shader;
    framebuffer.bind();

    MAGNUM_VERIFY_NO_ERROR();

    SampleQuery qYes{SampleQuery::Target::SamplesPassed},
        qNo{SampleQuery::Target::SamplesPassed},
        q{SampleQuery::Target::SamplesPassed};

    /* This should generate some samples */
    qYes.begin();
    mesh.draw(shader);
    qYes.end();

    /* Thus this should be rendered */
    qYes.beginConditionalRender(SampleQuery::ConditionalRenderMode::Wait);
    q.begin();
    mesh.draw(shader);
    q.end();
    qYes.endConditionalRender();

    MAGNUM_VERIFY_NO_ERROR();
    CORRADE_VERIFY(qYes.result<bool>());
    CORRADE_VERIFY(q.result<bool>());

    /* This shouldn't generate any samples */
    qNo.begin();
    qNo.end();

    /* Thus this should not be rendered */
    qNo.beginConditionalRender(SampleQuery::ConditionalRenderMode::Wait);
    q.begin();
    mesh.draw(shader);
    q.end();
    qNo.endConditionalRender();

    MAGNUM_VERIFY_NO_ERROR();
    CORRADE_VERIFY(!qNo.result<bool>());
    CORRADE_VERIFY(!q.result<bool>());
}

void FramebufferGLTest::attachTexture2D() {
    #ifndef MAGNUM_TARGET_GLES
    if(!Context::current()->isExtensionSupported<Extensions::GL::ARB::framebuffer_object>())
        CORRADE_SKIP(Extensions::GL::ARB::framebuffer_object::string() + std::string(" is not available."));
    #endif

    MAGNUM_VERIFY_NO_ERROR();

    Framebuffer framebuffer({{}, Vector2i(128)});

    MAGNUM_VERIFY_NO_ERROR();

    Texture2D color;
    #ifndef MAGNUM_TARGET_GLES2
    color.setStorage(1, TextureFormat::RGBA8, Vector2i(128));
    #else
    color.setStorage(1, rgbaFormatES2, Vector2i(128));
    #endif

    MAGNUM_VERIFY_NO_ERROR();

    framebuffer.attachTexture(Framebuffer::ColorAttachment(0), color, 0);

    MAGNUM_VERIFY_NO_ERROR();

    #ifdef MAGNUM_TARGET_GLES2
    if(Context::current()->isExtensionSupported<Extensions::GL::OES::packed_depth_stencil>())
    #endif
    {
        #ifdef MAGNUM_TARGET_GLES2
        Debug() << "Using" << Extensions::GL::OES::packed_depth_stencil::string();
        #endif

        /** @todo Is there any better way to select proper sized/unsized format on ES2? */
        Texture2D depthStencil;
        #ifndef MAGNUM_TARGET_GLES2
        depthStencil.setStorage(1, TextureFormat::Depth24Stencil8, Vector2i(128));
        framebuffer.attachTexture(Framebuffer::BufferAttachment::DepthStencil, depthStencil, 0);
        #else
        depthStencil.setStorage(1, depthStencilFormatES2, Vector2i(128));
        framebuffer.attachTexture(Framebuffer::BufferAttachment::Depth, depthStencil, 0)
                   .attachTexture(Framebuffer::BufferAttachment::Stencil, depthStencil, 0);
        #endif
    }

    #ifdef MAGNUM_TARGET_GLES2
    else if(Context::current()->isExtensionSupported<Extensions::GL::OES::depth_texture>()) {
        Debug() << "Using" << Extensions::GL::OES::depth_texture::string();

        Texture2D depth;
        depth.setStorage(1, TextureFormat::DepthComponent16, Vector2i(128));
        framebuffer.attachTexture(Framebuffer::BufferAttachment::Depth, depth, 0);
    }
    #endif

    MAGNUM_VERIFY_NO_ERROR();
    CORRADE_COMPARE(framebuffer.checkStatus(FramebufferTarget::ReadDraw), Framebuffer::Status::Complete);
}

void BufferGLTest::construct() {
    Buffer buffer;
    MAGNUM_VERIFY_NO_ERROR();

    CORRADE_COMPARE(buffer.targetHint(), Buffer::Target::Array);

    CORRADE_COMPARE(buffer.size(), 0);
    MAGNUM_VERIFY_NO_ERROR();
}

void BufferGLTest::constructNoCreate() {
    {
        Buffer buffer{NoCreate};

        MAGNUM_VERIFY_NO_ERROR();
        CORRADE_COMPARE(buffer.id(), 0);
    }

    MAGNUM_VERIFY_NO_ERROR();
}

void AbstractShaderProgramGLTest::construct() {
    {
        const MyShader shader;

        MAGNUM_VERIFY_NO_ERROR();
        CORRADE_VERIFY(shader.id() > 0);
    }

    MAGNUM_VERIFY_NO_ERROR();
}