Audio.cc File Reference

#include <SDL_audio.h>
#include <SDL_timer.h>
#include "Audio.h"
#include "Configuration.h"
#include "Flex.h"
#include "conv.h"
#include "exult.h"
#include "fnames.h"
#include "game.h"
#include "utils.h"
#include <csignal>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <iostream>
#include <fcntl.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>

Include dependency graph for Audio.cc:

Go to the source code of this file.

Classes
struct	Chunk
class	CubicInterpolator
class	SFX_cached
Defines
#define	TRAILING_VOC_SLOP   32
#define	LEADING_VOC_SLOP   32
#define	RANGE_REDUX(x)   (((x) * 27) >> 5)
#define	RANGE_REDUX(x)   (((x) * 27) >> 5)
Functions
static size_t	calc_sample_buffer (uint16 _samplerate)
static uint8 *	chunks_to_block (vector< Chunk > &chunks)
static sint16 *	resample_new (uint8 *sourcedata, size_t sourcelen, size_t &destlen, int current_rate, int wanted_rate)
static sint16 *	resample_new_mono (uint8 *sourcedata, size_t sourcelen, size_t &destlen, int current_rate, int wanted_rate)
static void	resample (uint8 *sourcedata, uint8 **destdata, size_t sourcelen, size_t *destlen, int current_rate, int wanted_rate)
static void	decode_ADPCM_4 (uint8 *inBuf, int bufSize, uint8 *outBuf, int &reference, int &scale)
int	decode_ADPCM_4_sample (uint8 sample, int &reference, int &scale)

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Define Documentation

#define LEADING_VOC_SLOP   32

Definition at line 84 of file Audio.cc.

Referenced by Audio::convert_VOC().

#define RANGE_REDUX

(

x

)

(((x) * 27) >> 5)

#define RANGE_REDUX

(

x

)

(((x) * 27) >> 5)

Referenced by resample_new(), and resample_new_mono().

#define TRAILING_VOC_SLOP   32

Definition at line 83 of file Audio.cc.

Referenced by Audio::convert_VOC().

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Function Documentation

static size_t calc_sample_buffer

(

uint16

_samplerate

)

[static]

Definition at line 1107 of file Audio.cc.

Referenced by Audio::Init().

static uint8 * chunks_to_block

(

vector< Chunk > &

chunks

)

[static]

Definition at line 1117 of file Audio.cc.

Referenced by Audio::convert_VOC().

static void decode_ADPCM_4	(	uint8 *	inBuf,
		int	bufSize,
		uint8 *	outBuf,
		int &	reference,
		int &	scale
	)			[static]

Definition at line 1208 of file Audio.cc.

References decode_ADPCM_4_sample().

Referenced by Audio::convert_VOC().

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int decode_ADPCM_4_sample	(	uint8	sample,
		int &	reference,
		int &	scale
	)			[inline]

Definition at line 1188 of file Audio.cc.

Referenced by decode_ADPCM_4().

static void resample	(	uint8 *	sourcedata,
		uint8 **	destdata,
		size_t	sourcelen,
		size_t *	destlen,
		int	current_rate,
		int	wanted_rate
	)			[static]

Definition at line 1143 of file Audio.cc.

References CERR.

Referenced by Audio::convert_VOC().

static sint16 * resample_new	(	uint8 *	sourcedata,
		size_t	sourcelen,
		size_t &	destlen,
		int	current_rate,
		int	wanted_rate
	)			[static]

Definition at line 567 of file Audio.cc.

References CubicInterpolator::feedData(), CubicInterpolator::interpolate(), and RANGE_REDUX.

Referenced by Audio::convert_VOC().

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static sint16 * resample_new_mono	(	uint8 *	sourcedata,
		size_t	sourcelen,
		size_t &	destlen,
		int	current_rate,
		int	wanted_rate
	)			[static]

Definition at line 643 of file Audio.cc.

References CubicInterpolator::feedData(), CubicInterpolator::interpolate(), and RANGE_REDUX.

Referenced by Audio::convert_VOC().

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