/*-------------------------------------------------------------------------
 * drawElements Quality Program OpenGL ES 3.1 Module
 * -------------------------------------------------
 *
 * Copyright 2015 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 *//*!
 * \file
 * \brief Framebuffer Default State Query tests.
 *//*--------------------------------------------------------------------*/

#include "es31fFramebufferDefaultStateQueryTests.hpp"
#include "glsStateQueryUtil.hpp"
#include "gluRenderContext.hpp"
#include "gluCallLogWrapper.hpp"
#include "gluObjectWrapper.hpp"
#include "glwFunctions.hpp"
#include "glwEnums.hpp"

namespace deqp
{
namespace gles31
{
namespace Functional
{
namespace
{

using namespace gls::StateQueryUtil;

static const char *getVerifierSuffix(QueryType type)
{
    switch (type)
    {
    case QUERY_FRAMEBUFFER_INTEGER:
        return "get_framebuffer_parameteriv";
    default:
        DE_ASSERT(false);
        return DE_NULL;
    }
}

class FramebufferTest : public TestCase
{
public:
    FramebufferTest(Context &context, QueryType verifier, const char *name, const char *desc);
    IterateResult iterate(void);

protected:
    virtual void checkInitial(tcu::ResultCollector &result, glu::CallLogWrapper &gl) = 0;
    virtual void checkSet(tcu::ResultCollector &result, glu::CallLogWrapper &gl)     = 0;

    const QueryType m_verifier;
};

FramebufferTest::FramebufferTest(Context &context, QueryType verifier, const char *name, const char *desc)
    : TestCase(context, name, desc)
    , m_verifier(verifier)
{
}

FramebufferTest::IterateResult FramebufferTest::iterate(void)
{
    glu::Framebuffer fbo(m_context.getRenderContext());
    glu::CallLogWrapper gl(m_context.getRenderContext().getFunctions(), m_testCtx.getLog());
    tcu::ResultCollector result(m_testCtx.getLog(), " // ERROR: ");

    gl.enableLogging(true);

    gl.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, *fbo);
    GLU_EXPECT_NO_ERROR(gl.glGetError(), "bind");

    {
        const tcu::ScopedLogSection section(m_testCtx.getLog(), "Initial", "Initial");
        checkInitial(result, gl);
    }

    {
        const tcu::ScopedLogSection section(m_testCtx.getLog(), "Set", "Set");
        checkSet(result, gl);
    }

    result.setTestContextResult(m_testCtx);
    return STOP;
}

class FramebufferDimensionTest : public FramebufferTest
{
public:
    enum DimensionType
    {
        DIMENSION_WIDTH = 0,
        DIMENSION_HEIGHT,

        DIMENSION_LAST
    };

    FramebufferDimensionTest(Context &context, QueryType verifier, DimensionType dimension, const char *name,
                             const char *desc);
    void checkInitial(tcu::ResultCollector &result, glu::CallLogWrapper &gl);
    void checkSet(tcu::ResultCollector &result, glu::CallLogWrapper &gl);

private:
    const DimensionType m_dimension;
};

FramebufferDimensionTest::FramebufferDimensionTest(Context &context, QueryType verifier, DimensionType dimension,
                                                   const char *name, const char *desc)
    : FramebufferTest(context, verifier, name, desc)
    , m_dimension(dimension)
{
    DE_ASSERT(dimension < DIMENSION_LAST);
}

void FramebufferDimensionTest::checkInitial(tcu::ResultCollector &result, glu::CallLogWrapper &gl)
{
    const glw::GLenum pname =
        (m_dimension == DIMENSION_WIDTH) ? (GL_FRAMEBUFFER_DEFAULT_WIDTH) : (GL_FRAMEBUFFER_DEFAULT_HEIGHT);
    verifyStateFramebufferInteger(result, gl, GL_DRAW_FRAMEBUFFER, pname, 0, m_verifier);
}

void FramebufferDimensionTest::checkSet(tcu::ResultCollector &result, glu::CallLogWrapper &gl)
{
    const glw::GLenum pname =
        (m_dimension == DIMENSION_WIDTH) ? (GL_FRAMEBUFFER_DEFAULT_WIDTH) : (GL_FRAMEBUFFER_DEFAULT_HEIGHT);

    gl.glFramebufferParameteri(GL_DRAW_FRAMEBUFFER, pname, 32);
    GLU_EXPECT_NO_ERROR(gl.glGetError(), "set state");

    verifyStateFramebufferInteger(result, gl, GL_DRAW_FRAMEBUFFER, pname, 32, m_verifier);
}

class FramebufferSamplesTest : public FramebufferTest
{
public:
    FramebufferSamplesTest(Context &context, QueryType verifier, const char *name, const char *desc);
    void checkInitial(tcu::ResultCollector &result, glu::CallLogWrapper &gl);
    void checkSet(tcu::ResultCollector &result, glu::CallLogWrapper &gl);
};

FramebufferSamplesTest::FramebufferSamplesTest(Context &context, QueryType verifier, const char *name, const char *desc)
    : FramebufferTest(context, verifier, name, desc)
{
}

void FramebufferSamplesTest::checkInitial(tcu::ResultCollector &result, glu::CallLogWrapper &gl)
{
    verifyStateFramebufferInteger(result, gl, GL_DRAW_FRAMEBUFFER, GL_FRAMEBUFFER_DEFAULT_SAMPLES, 0, m_verifier);
}

void FramebufferSamplesTest::checkSet(tcu::ResultCollector &result, glu::CallLogWrapper &gl)
{
    gl.glFramebufferParameteri(GL_DRAW_FRAMEBUFFER, GL_FRAMEBUFFER_DEFAULT_SAMPLES, 1);
    GLU_EXPECT_NO_ERROR(gl.glGetError(), "set state");
    verifyStateFramebufferIntegerMin(result, gl, GL_DRAW_FRAMEBUFFER, GL_FRAMEBUFFER_DEFAULT_SAMPLES, 1, m_verifier);

    gl.glFramebufferParameteri(GL_DRAW_FRAMEBUFFER, GL_FRAMEBUFFER_DEFAULT_SAMPLES, 0);
    GLU_EXPECT_NO_ERROR(gl.glGetError(), "set state");
    verifyStateFramebufferInteger(result, gl, GL_DRAW_FRAMEBUFFER, GL_FRAMEBUFFER_DEFAULT_SAMPLES, 0, m_verifier);
}

class FramebufferFixedSampleLocationsTest : public FramebufferTest
{
public:
    FramebufferFixedSampleLocationsTest(Context &context, QueryType verifier, const char *name, const char *desc);
    void checkInitial(tcu::ResultCollector &result, glu::CallLogWrapper &gl);
    void checkSet(tcu::ResultCollector &result, glu::CallLogWrapper &gl);
};

FramebufferFixedSampleLocationsTest::FramebufferFixedSampleLocationsTest(Context &context, QueryType verifier,
                                                                         const char *name, const char *desc)
    : FramebufferTest(context, verifier, name, desc)
{
}

void FramebufferFixedSampleLocationsTest::checkInitial(tcu::ResultCollector &result, glu::CallLogWrapper &gl)
{
    verifyStateFramebufferInteger(result, gl, GL_DRAW_FRAMEBUFFER, GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS, 0,
                                  m_verifier);
}

void FramebufferFixedSampleLocationsTest::checkSet(tcu::ResultCollector &result, glu::CallLogWrapper &gl)
{
    gl.glFramebufferParameteri(GL_DRAW_FRAMEBUFFER, GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS, GL_TRUE);
    GLU_EXPECT_NO_ERROR(gl.glGetError(), "set state");
    verifyStateFramebufferInteger(result, gl, GL_DRAW_FRAMEBUFFER, GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS,
                                  GL_TRUE, m_verifier);
}

} // namespace

FramebufferDefaultStateQueryTests::FramebufferDefaultStateQueryTests(Context &context)
    : TestCaseGroup(context, "framebuffer_default", "Framebuffer Default State Query tests")
{
}

FramebufferDefaultStateQueryTests::~FramebufferDefaultStateQueryTests(void)
{
}

void FramebufferDefaultStateQueryTests::init(void)
{
    static const QueryType verifiers[] = {
        QUERY_FRAMEBUFFER_INTEGER,
    };

#define FOR_EACH_VERIFIER(X)                                                                  \
    do                                                                                        \
    {                                                                                         \
        for (int verifierNdx = 0; verifierNdx < DE_LENGTH_OF_ARRAY(verifiers); ++verifierNdx) \
        {                                                                                     \
            const char *verifierSuffix = getVerifierSuffix(verifiers[verifierNdx]);           \
            const QueryType verifier   = verifiers[verifierNdx];                              \
            this->addChild(X);                                                                \
        }                                                                                     \
    } while (0)

    FOR_EACH_VERIFIER(new FramebufferDimensionTest(m_context, verifier, FramebufferDimensionTest::DIMENSION_WIDTH,
                                                   (std::string("framebuffer_default_width_") + verifierSuffix).c_str(),
                                                   "Test FRAMEBUFFER_DEFAULT_WIDTH"));
    FOR_EACH_VERIFIER(new FramebufferDimensionTest(
        m_context, verifier, FramebufferDimensionTest::DIMENSION_HEIGHT,
        (std::string("framebuffer_default_height_") + verifierSuffix).c_str(), "Test FRAMEBUFFER_DEFAULT_HEIGHT"));
    FOR_EACH_VERIFIER(new FramebufferSamplesTest(m_context, verifier,
                                                 (std::string("framebuffer_default_samples_") + verifierSuffix).c_str(),
                                                 "Test FRAMEBUFFER_DEFAULT_SAMPLES"));
    FOR_EACH_VERIFIER(new FramebufferFixedSampleLocationsTest(
        m_context, verifier, (std::string("framebuffer_default_fixed_sample_locations_") + verifierSuffix).c_str(),
        "Test FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS"));

#undef FOR_EACH_VERIFIER
}

} // namespace Functional
} // namespace gles31
} // namespace deqp