/*
 * Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
 *           (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
 *
 * This file is part of lsp-dsp-lib
 * Created on: 31 мар. 2020 г.
 *
 * lsp-dsp-lib is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * any later version.
 *
 * lsp-dsp-lib is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with lsp-dsp-lib. If not, see <https://www.gnu.org/licenses/>.
 */

#include <lsp-plug.in/common/types.h>
#include <lsp-plug.in/dsp/dsp.h>
#include <lsp-plug.in/test-fw/utest.h>
#include <lsp-plug.in/test-fw/FloatBuffer.h>
#include <lsp-plug.in/stdlib/math.h>

#define CASCADES            11
#define BIQUAD_X1_FLOATS    (sizeof(dsp::biquad_x1_t) / sizeof(float))
#define BIQUAD_X2_FLOATS    (sizeof(dsp::biquad_x2_t) / sizeof(float))
#define BIQUAD_X4_FLOATS    (sizeof(dsp::biquad_x4_t) / sizeof(float))
#define BIQUAD_X8_FLOATS    (sizeof(dsp::biquad_x8_t) / sizeof(float))
#define CASCADE_FLOATS      (sizeof(dsp::f_cascade_t) / sizeof(float))

namespace lsp
{
    namespace generic
    {
        void matched_transform_x1(dsp::biquad_x1_t *bf, dsp::f_cascade_t *bc, float kf, float td, size_t count);
    }

    IF_ARCH_X86(
        namespace sse
        {
            void matched_transform_x1(dsp::biquad_x1_t *bf, dsp::f_cascade_t *bc, float kf, float td, size_t count);
        }
    )

    typedef void (* matched_transform_x1_t)(dsp::biquad_x1_t *bf, dsp::f_cascade_t *bc, float kf, float td, size_t count);
}

UTEST_BEGIN("dsp.filters", mt)

    void call(const char *text, matched_transform_x1_t f1, matched_transform_x1_t f2)
    {
        if (!UTEST_SUPPORTED(f1))
            return;
        if (!UTEST_SUPPORTED(f2))
            return;

        printf("Testing %s matched transformation\n", text);

        float td = 2.0*M_PI/48000.0;
        FloatBuffer src1(CASCADE_FLOATS * CASCADES, 64, true);
        dsp::f_cascade_t *bc = src1.data<dsp::f_cascade_t>();
        for (size_t i=0; i<CASCADES; ++i)
        {
            float kt = i * 0.1;
            float kb = i * 0.05;
            bc[i].t[0] = 1 + kt; bc[i].t[1] = 2 + kt;  bc[i].t[2] = 1 - kt; bc[i].t[3] = 0;
            bc[i].b[0] = 1 + kb; bc[i].b[1] = -2 + kb; bc[i].b[2] = 1 - kb; bc[i].b[3] = 0;
        }

        FloatBuffer src2(src1); // Copy of src1
        FloatBuffer dst1(BIQUAD_X1_FLOATS * CASCADES, 64, true);
        FloatBuffer dst2(BIQUAD_X1_FLOATS * CASCADES, 64, true);

        f1(dst1.data<dsp::biquad_x1_t>(), bc, 1.5f, td, CASCADES);
        f2(dst2.data<dsp::biquad_x1_t>(), bc, 1.5f, td, CASCADES);

        UTEST_ASSERT_MSG(src1.valid(), "Source buffer corrupted");
        UTEST_ASSERT_MSG(src2.valid(), "Source buffer corrupted");
        UTEST_ASSERT_MSG(dst1.valid(), "Destination buffer 1 corrupted");
        UTEST_ASSERT_MSG(dst2.valid(), "Destination buffer 2 corrupted");
        if (!dst1.equals_relative(dst2, 1e-4f))
        {
            src1.dump("src1");
            src2.dump("src2");
            dst1.dump("dst1");
            dst2.dump("dst2");
            UTEST_FAIL_MSG("Output of functions for test '%s' differs", text);
        }
    }

    UTEST_MAIN
    {
        IF_ARCH_X86(call("mt_sse_x1", generic::matched_transform_x1, sse::matched_transform_x1));
    }

UTEST_END;




