mirror of
https://github.com/DrBeef/Raze.git
synced 2024-12-16 07:31:04 +00:00
318 lines
No EOL
9 KiB
C++
318 lines
No EOL
9 KiB
C++
/*
|
|
TiMidity++ -- MIDI to WAVE converter and player
|
|
Copyright (C) 1999-2002 Masanao Izumo <mo@goice.co.jp>
|
|
Copyright (C) 1995 Tuukka Toivonen <tt@cgs.fi>
|
|
|
|
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
|
|
|
|
quantity.c
|
|
|
|
string -> quantity -> native value convertion
|
|
by Kentaro Sato <kentaro@ranvis.com>
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <math.h>
|
|
|
|
#include "timidity.h"
|
|
#include "common.h"
|
|
#include "instrum.h"
|
|
#include "tables.h"
|
|
|
|
#include "quantity.h"
|
|
|
|
|
|
namespace TimidityPlus
|
|
{
|
|
typedef int32_t(*QuantityToIntProc)(int32_t value, int32_t param);
|
|
typedef double(*QuantityToFloatProc)(double value, int32_t param);
|
|
typedef union {
|
|
QuantityToIntProc i;
|
|
QuantityToFloatProc f;
|
|
} QuantityConvertProc;
|
|
|
|
typedef struct {
|
|
const char *suffix;
|
|
uint16_t type, id;
|
|
int float_type; /* is floating-point type */
|
|
QuantityConvertProc convert;
|
|
} QuantityHint;
|
|
|
|
|
|
/*
|
|
Guide To Add New Unit Types/Units
|
|
|
|
append QUANTITY_UNIT_TYPE(<TYPE>)
|
|
QUANTITY_UNIT_NAME(<UNIT>)
|
|
... to enum quantity_units (in quantity.h)
|
|
append QUANTITY_TYPE_INT/FLOAT(<TYPE>)
|
|
REGISTER_TYPE_INT/FLOAT("<SUFFIX>", <UNIT>);
|
|
...
|
|
END_QUANTITY_TYPE; to GetQuantityHints()
|
|
write convert_<TYPE>_NUM(int32_t/double value, int32_t param)
|
|
convert_<UNIT>(int32_t/double value, int32_t param)
|
|
... functions.
|
|
*/
|
|
|
|
/*************** conversion functions ***************/
|
|
|
|
static int32_t convert_DIRECT_INT_NUM(int32_t value, int32_t param)
|
|
{
|
|
return value;
|
|
}
|
|
|
|
static double convert_DIRECT_FLOAT_NUM(double value, int32_t param)
|
|
{
|
|
return value;
|
|
}
|
|
|
|
/* from instrum.c, convert_tremolo_sweep() */
|
|
static int32_t convert_TREMOLO_SWEEP_NUM(int32_t value, int32_t param)
|
|
{
|
|
uint8_t sweep = value;
|
|
if (!sweep)
|
|
return 0;
|
|
|
|
return
|
|
((control_ratio * SWEEP_TUNING) << SWEEP_SHIFT) /
|
|
(playback_rate * sweep);
|
|
}
|
|
|
|
static int32_t convert_TREMOLO_SWEEP_MS(int32_t value, int32_t param)
|
|
{
|
|
if (value <= 0)
|
|
return 0;
|
|
#if SWEEP_SHIFT <= 16
|
|
return ((uint32_t)(control_ratio * (1000 >> 2)) << SWEEP_SHIFT) / ((playback_rate * value) >> 2);
|
|
#else
|
|
#error "overflow"
|
|
#endif
|
|
}
|
|
|
|
/* from instrum.c, convert_tremolo_rate() */
|
|
static int32_t convert_TREMOLO_RATE_NUM(int32_t value, int32_t param)
|
|
{
|
|
uint8_t rate = value;
|
|
return
|
|
((SINE_CYCLE_LENGTH * control_ratio * rate) << RATE_SHIFT) /
|
|
(TREMOLO_RATE_TUNING * playback_rate);
|
|
}
|
|
|
|
static int32_t convert_TREMOLO_RATE_MS(int32_t value, int32_t param)
|
|
{
|
|
#if RATE_SHIFT <= 5
|
|
return ((SINE_CYCLE_LENGTH * control_ratio * (1000 >> 1)) << RATE_SHIFT) /
|
|
((playback_rate * (uint32_t)value) >> 1);
|
|
#else
|
|
#error "overflow"
|
|
#endif
|
|
}
|
|
|
|
static double convert_TREMOLO_RATE_HZ(double value, int32_t param)
|
|
{
|
|
if (value <= 0)
|
|
return 0;
|
|
return ((SINE_CYCLE_LENGTH * control_ratio) << RATE_SHIFT) * value / playback_rate;
|
|
}
|
|
|
|
/* from instrum.c, convert_vibrato_sweep() */
|
|
static int32_t convert_VIBRATO_SWEEP_NUM(int32_t value, int32_t vib_control_ratio)
|
|
{
|
|
uint8_t sweep = value;
|
|
if (!sweep)
|
|
return 0;
|
|
|
|
return (int32_t)(TIM_FSCALE((double) (vib_control_ratio)
|
|
* SWEEP_TUNING, SWEEP_SHIFT)
|
|
/ (double)(playback_rate * sweep));
|
|
|
|
/* this was overflowing with seashore.pat
|
|
|
|
((vib_control_ratio * SWEEP_TUNING) << SWEEP_SHIFT) /
|
|
(playback_rate * sweep); */
|
|
}
|
|
|
|
static int32_t convert_VIBRATO_SWEEP_MS(int32_t value, int32_t vib_control_ratio)
|
|
{
|
|
if (value <= 0)
|
|
return 0;
|
|
return (TIM_FSCALE((double)vib_control_ratio * 1000, SWEEP_SHIFT)
|
|
/ (double)(playback_rate * value));
|
|
}
|
|
|
|
/* from instrum.c, to_control() */
|
|
static int32_t convert_VIBRATO_RATE_NUM(int32_t control, int32_t param)
|
|
{
|
|
return (int32_t) (0x2000 / pow(2.0, control / 31.0));
|
|
}
|
|
|
|
static int32_t convert_VIBRATO_RATE_MS(int32_t value, int32_t param)
|
|
{
|
|
return 1000 * playback_rate / ((2 * VIBRATO_SAMPLE_INCREMENTS) * value);
|
|
}
|
|
|
|
static double convert_VIBRATO_RATE_HZ(double value, int32_t param)
|
|
{
|
|
return playback_rate / ((2 * VIBRATO_SAMPLE_INCREMENTS) * value);
|
|
}
|
|
|
|
/*************** core functions ***************/
|
|
|
|
#define MAX_QUANTITY_UNITS_PER_UNIT_TYPES 8
|
|
|
|
static int GetQuantityHints(uint16_t type, QuantityHint *units)
|
|
{
|
|
QuantityHint *unit;
|
|
|
|
unit = units;
|
|
#define QUANTITY_TYPE_INT(type) \
|
|
case QUANTITY_UNIT_TYPE(type): REGISTER_TYPE_INT("", type##_NUM)
|
|
#define QUANTITY_TYPE_FLOAT(type) \
|
|
case QUANTITY_UNIT_TYPE(type): REGISTER_TYPE_FLOAT("", type##_NUM)
|
|
#define REGISTER_TYPE_INT(ustr, utype) REGISTER_TYPE_ENTITY_INT(ustr, utype, convert_##utype)
|
|
#define REGISTER_TYPE_FLOAT(ustr, utype) REGISTER_TYPE_ENTITY_FLOAT(ustr, utype, convert_##utype)
|
|
#define REGISTER_TYPE_ALIAS_INT(ustr, utype, atype) REGISTER_TYPE_ENTITY_INT(ustr, utype, convert_##atype)
|
|
#define REGISTER_TYPE_ALIAS_FLOAT(ustr, utype, atype) REGISTER_TYPE_ENTITY_FLOAT(ustr, utype, convert_##atype)
|
|
#define REGISTER_TYPE_ENTITY_INT(ustr, utype, ucvt) \
|
|
unit->suffix = ustr, unit->type = type, unit->id = QUANTITY_UNIT_NAME(utype), unit->float_type = 0, unit->convert.i = ucvt, unit++
|
|
#define REGISTER_TYPE_ENTITY_FLOAT(ustr, utype, ucvt) \
|
|
unit->suffix = ustr, unit->type = type, unit->id = QUANTITY_UNIT_NAME(utype), unit->float_type = 1, unit->convert.f = ucvt, unit++
|
|
#define END_QUANTITY_TYPE unit->suffix = NULL; break
|
|
switch (type)
|
|
{
|
|
QUANTITY_TYPE_INT(DIRECT_INT);
|
|
END_QUANTITY_TYPE;
|
|
QUANTITY_TYPE_FLOAT(DIRECT_FLOAT);
|
|
END_QUANTITY_TYPE;
|
|
QUANTITY_TYPE_INT(TREMOLO_SWEEP);
|
|
REGISTER_TYPE_INT("ms", TREMOLO_SWEEP_MS);
|
|
END_QUANTITY_TYPE;
|
|
QUANTITY_TYPE_INT(TREMOLO_RATE);
|
|
REGISTER_TYPE_INT("ms", TREMOLO_RATE_MS);
|
|
REGISTER_TYPE_FLOAT("Hz", TREMOLO_RATE_HZ);
|
|
END_QUANTITY_TYPE;
|
|
QUANTITY_TYPE_INT(VIBRATO_RATE);
|
|
REGISTER_TYPE_INT("ms", VIBRATO_RATE_MS);
|
|
REGISTER_TYPE_FLOAT("Hz", VIBRATO_RATE_HZ);
|
|
END_QUANTITY_TYPE;
|
|
QUANTITY_TYPE_INT(VIBRATO_SWEEP);
|
|
REGISTER_TYPE_INT("ms", VIBRATO_SWEEP_MS);
|
|
END_QUANTITY_TYPE;
|
|
default:
|
|
printMessage(CMSG_ERROR, VERB_NORMAL, "Internal parameter error (%d)", type);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* quantity is unchanged if an error occurred */
|
|
static const char *number_to_quantity(int32_t number_i, const char *suffix_i, double number_f, const char *suffix_f, Quantity *quantity, uint16_t type)
|
|
{
|
|
QuantityHint units[MAX_QUANTITY_UNITS_PER_UNIT_TYPES], *unit;
|
|
|
|
if (!GetQuantityHints(type, units))
|
|
return "Parameter error";
|
|
unit = units;
|
|
while(unit->suffix != NULL)
|
|
{
|
|
if (suffix_i != NULL && strcmp(suffix_i, unit->suffix) == 0) /* number_i, suffix_i was valid */
|
|
{
|
|
quantity->type = unit->type;
|
|
quantity->unit = unit->id;
|
|
if (unit->float_type)
|
|
quantity->value.f = number_i;
|
|
else
|
|
quantity->value.i = number_i;
|
|
return NULL;
|
|
}
|
|
else if (suffix_f != NULL && strcmp(suffix_f, unit->suffix) == 0) /* number_f, suffix_f was valid */
|
|
{
|
|
if (unit->float_type)
|
|
{
|
|
quantity->type = unit->type;
|
|
quantity->unit = unit->id;
|
|
quantity->value.f = number_f;
|
|
return NULL;
|
|
}
|
|
else
|
|
return "integer expected";
|
|
}
|
|
unit++;
|
|
}
|
|
return "invalid parameter";
|
|
}
|
|
|
|
const char *string_to_quantity(const char *string, Quantity *quantity, uint16_t type)
|
|
{
|
|
int32_t number_i;
|
|
double number_f;
|
|
char *suffix_i, *suffix_f;
|
|
|
|
number_i = strtol(string, &suffix_i, 10); /* base == 10 for compatibility with atoi() */
|
|
if (string == suffix_i) /* doesn't start with valid character */
|
|
return "Number expected";
|
|
number_f = strtod(string, &suffix_f);
|
|
return number_to_quantity(number_i, suffix_i, number_f, suffix_f, quantity, type);
|
|
}
|
|
|
|
static int GetQuantityConvertProc(const Quantity *quantity, QuantityConvertProc *proc)
|
|
{
|
|
QuantityHint units[MAX_QUANTITY_UNITS_PER_UNIT_TYPES], *unit;
|
|
|
|
if (!GetQuantityHints(quantity->type, units))
|
|
return -1; /* already warned */
|
|
unit = units;
|
|
while(unit->suffix != NULL)
|
|
{
|
|
if (quantity->unit == unit->id)
|
|
{
|
|
*proc = unit->convert;
|
|
return unit->float_type;
|
|
}
|
|
unit++;
|
|
}
|
|
printMessage(CMSG_ERROR, VERB_NORMAL, "Internal parameter error");
|
|
return -1;
|
|
}
|
|
|
|
int32_t quantity_to_int(const Quantity *quantity, int32_t param)
|
|
{
|
|
QuantityConvertProc proc;
|
|
|
|
switch (GetQuantityConvertProc(quantity, &proc))
|
|
{
|
|
case 0:
|
|
return (*proc.i)(quantity->value.i, param);
|
|
case 1:
|
|
return (*proc.f)(quantity->value.f, param);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
double quantity_to_float(const Quantity *quantity, int32_t param)
|
|
{
|
|
QuantityConvertProc proc;
|
|
|
|
switch (GetQuantityConvertProc(quantity, &proc))
|
|
{
|
|
case 0:
|
|
return (*proc.i)(quantity->value.i, param);
|
|
case 1:
|
|
return (*proc.f)(quantity->value.f, param);
|
|
}
|
|
return 0;
|
|
}
|
|
} |