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/* sane - Scanner Access Now Easy.

   Copyright (C) 2019 Povilas Kanapickas <povilas@radix.lt>

   This file is part of the SANE package.

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   This program 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
   General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330, Boston,
   MA 02111-1307, USA.
*/

#include "tests.h"
#include "minigtest.h"

#include "../../../backend/genesys_low.h"

#include <sstream>

#define DEBUG_DECLARE_ONLY

Genesys_Calibration_Cache create_fake_calibration_entry()
{
    Genesys_Calibration_Cache calib;
    calib.used_setup.pixels = 10020;
    calib.used_setup.lines = 150;
    calib.used_setup.xres = 100.5;

    GenesysFrontendLayout wolfson_layout;
    wolfson_layout.offset_addr = { 0x20, 0x21, 0x22 };
    wolfson_layout.gain_addr = { 0x28, 0x29, 0x2a };

    Genesys_Frontend fe;
    fe.fe_id = DAC_WOLFSON_UMAX;
    fe.layout = wolfson_layout;
    fe.regs = {
        { 0x00, 0x00 },
        { 0x01, 0x03 },
        { 0x02, 0x05 },
        { 0x03, 0x11 },
        { ' ', 0x80 }, // check whether space-like integer values are correctly serialized
        { ',', 0x80 },
        { '\r', '\n' },
        { '\n', 0x00 },
        { 0x25, 0x00 },
        { 0x26, 0x00 },
        { 0x28, 0x02 },
        { 0x29, 0x02 },
        { 0x2a, 0x02 },
    };
    fe.reg2 = {0x00, 0x00, 0x00};
    calib.frontend = fe;

    Genesys_Sensor sensor;
    sensor.sensor_id = CCD_UMAX;
    sensor.optical_res = 1200;
    sensor.black_pixels = 48;
    sensor.dummy_pixel = 64;
    sensor.CCD_start_xoffset = 0;
    sensor.sensor_pixels = 10800;
    sensor.fau_gain_white_ref = 210;
    sensor.gain_white_ref = 230;
    sensor.exposure = { 0x0000, 0x0000, 0x0000 };
    sensor.custom_regs = {
        { 0x08, 0x01 },
        { 0x09, 0x03 },
        { 0x0a, 0x05 },
        { 0x0b, 0x07 },
        { 0x16, 0x33 },
        { 0x17, 0x05 },
        { 0x18, 0x31 },
        { 0x19, 0x2a },
        { 0x1a, 0x00 },
        { 0x1b, 0x00 },
        { 0x1c, 0x00 },
        { 0x1d, 0x02 },
        { 0x52, 0x13 },
        { 0x53, 0x17 },
        { 0x54, 0x03 },
        { 0x55, 0x07 },
        { 0x56, 0x0b },
        { 0x57, 0x0f },
        { 0x58, 0x23 },
        { 0x59, 0x00 },
        { 0x5a, 0xc1 },
        { 0x5b, 0x00 },
        { 0x5c, 0x00 },
        { 0x5d, 0x00 },
        { 0x5e, 0x00 },
    };
    sensor.gamma = {1.0, 1.0, 1.0};
    calib.sensor = sensor;

    calib.calib_pixels = 12345;
    calib.calib_channels = 3;
    calib.average_size = 7;
    calib.white_average_data = { 8, 7, 6, 5, 4, 3, 2 };
    calib.dark_average_data = { 6, 5, 4, 3, 2, 18, 12 };
    return calib;
}

void test_calibration_roundtrip()
{
    Genesys_Device::Calibration calibration = { create_fake_calibration_entry() };
    Genesys_Device::Calibration deserialized;

    std::stringstream str;
    serialize(static_cast<std::ostream&>(str), calibration);
    serialize(static_cast<std::istream&>(str), deserialized);
    ASSERT_TRUE(calibration == deserialized);

    int x;
    str >> x;
    ASSERT_TRUE(str.eof());
}

void test_calibration_parsing()
{
    test_calibration_roundtrip();
}