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authorMauro Carvalho Chehab <m.chehab@samsung.com>2014-09-05 15:05:42 -0300
committerMauro Carvalho Chehab <m.chehab@samsung.com>2014-09-05 15:05:42 -0300
commit06e54ff221c2e3126a7dfbd63e9814431511b558 (patch)
treeeb13b8eac5ca9006e8993442a4bf1d1261a19f1c /dvb-t/fi-Levi
parent78988921cd3cdef0d94ba111fbcf7d813e07e02a (diff)
downloaddtv-scan-tables-06e54ff221c2e3126a7dfbd63e9814431511b558.tar.gz
Convert existing tables to DVBv5 format
All comments were preserved on this conversion, thanks to a temporary patch for libdvbv5. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-24 08:22:41 +0000
123' href='#n123'>123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 
/* $Id$
 * $URL$
 *
 * math plugin
 *
 * Copyright (C) 2003 Michael Reinelt <michael@reinelt.co.at>
 * Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
 *
 * This file is part of LCD4Linux.
 *
 * LCD4Linux 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, or (at your option)
 * any later version.
 *
 * LCD4Linux 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

/* 
 * exported functions:
 *
 * int plugin_init_math (void)
 *  adds some handy constants and functions
 *
 */


#include "config.h"

#include <stdlib.h>
#include <stdio.h>
#include <math.h>

#include "debug.h"
#include "plugin.h"


static void my_sqrt(RESULT * result, RESULT * arg1)
{
    double value = sqrt(R2N(arg1));
    SetResult(&result, R_NUMBER, &value);
}

static void my_exp(RESULT * result, RESULT * arg1)
{
    double value = exp(R2N(arg1));
    SetResult(&result, R_NUMBER, &value);
}

static void my_ln(RESULT * result, RESULT * arg1)
{
    double value = log(R2N(arg1));
    SetResult(&result, R_NUMBER, &value);
}

static void my_log(RESULT * result, RESULT * arg1)
{
    double value = log10(R2N(arg1));
    SetResult(&result, R_NUMBER, &value);
}

static void my_sin(RESULT * result, RESULT * arg1)
{
    double value = sin(R2N(arg1));
    SetResult(&result, R_NUMBER, &value);
}

static void my_cos(RESULT * result, RESULT * arg1)
{
    double value = cos(R2N(arg1));
    SetResult(&result, R_NUMBER, &value);
}

static void my_tan(RESULT * result, RESULT * arg1)
{
    double value = tan(R2N(arg1));
    SetResult(&result, R_NUMBER, &value);
}


static void my_min(RESULT * result, RESULT * arg1, RESULT * arg2)
{
    double a1 = R2N(arg1);
    double a2 = R2N(arg2);
    double value = a1 < a2 ? a1 : a2;
    SetResult(&result, R_NUMBER, &value);
}

static void my_max(RESULT * result, RESULT * arg1, RESULT * arg2)
{
    double a1 = R2N(arg1);
    double a2 = R2N(arg2);
    double value = a1 > a2 ? a1 : a2;
    SetResult(&result, R_NUMBER, &value);
}

static void my_floor(RESULT * result, RESULT * arg)
{
    double value = floor(R2N(arg));
    SetResult(&result, R_NUMBER, &value);
}

static void my_ceil(RESULT * result, RESULT * arg)
{
    double value = ceil(R2N(arg));
    SetResult(&result, R_NUMBER, &value);
}

static void my_decode(RESULT * result, int argc, RESULT * argv[])
{
    int index;

    if (argc < 2) {
	error("decode(): wrong number of parameters");
	SetResult(&result, R_STRING, "");
	return;
    }

    index = R2N(argv[0]);

    if (index < 0 || index >= argc - 1) {
	SetResult(&result, R_STRING, "");
	return;
    }

    CopyResult(&result, argv[index + 1]);
}


int plugin_init_math(void)
{
    /* set some handy constants */
    SetVariableNumeric("Pi", M_PI);
    SetVariableNumeric("e", M_E);

    /* register some basic math functions */
    AddFunction("sqrt", 1, my_sqrt);
    AddFunction("exp", 1, my_exp);
    AddFunction("ln", 1, my_ln);
    AddFunction("log", 1, my_log);
    AddFunction("sin", 1, my_sin);
    AddFunction("cos", 1, my_cos);
    AddFunction("tan", 1, my_tan);

    /* min, max */
    AddFunction("min", 2, my_min);
    AddFunction("max", 2, my_max);

    /* floor, ceil */
    AddFunction("floor", 1, my_floor);
    AddFunction("ceil", 1, my_ceil);

    /* decode */
    AddFunction("decode", -1, my_decode);

    return 0;
}

void plugin_exit_math(void)
{
}