dsps.cpp File Reference

DirectSound streaming ring buffers. More...

#include "ix.h"
#include <dos.h>
#include <stdlib.h>

Go to the source code of this file.

Functions
void	ix_dsps_prepare (int stream)
void	ix_dsps_play (int stream)
void	ix_dsps_stop (int stream)
void	ix_dsps_set_volume (int stream, unsigned short volume)
int	ix_dsps_get_buffer_free (int stream)
void	ix_dsps_unlock (int stream)
void	ix_dsps_alloc (int stream, unsigned int size, int freq, int bps, int channels)
void	ix_dsps_free (int stream)
void	ix_dsps_lock (int stream, unsigned int requestedBytes, unsigned char **buffer, unsigned int *lockedBytes)
unsigned int	ix_dsps_get_flags (int stream)

Variables
int	g_3_nStreamCount
int	g_nStreamsTaken
IxStream	g_1_streams [2]

Detailed Description

DirectSound streaming ring buffers.

Definition in file dsps.cpp.

Function Documentation

ix_dsps_alloc()

void ix_dsps_alloc	(	int	stream,
		unsigned int	size,
		int	freq,
		int	bps,
		int	channels )

Definition at line 30 of file dsps.cpp.

References IxStream::buffer, IxVoice::cursor, IxVoice::end, IxVoice::field_10, IxStream::flags, IxVoice::flags, g_1_streams, g_2_voices, g_3_nStreamCount, g_nStreamsTaken, g_nVoiceCapacity, ix_dsps_alloc(), IX_DSPS_FILE, ix_log_printf(), IX_MIXER_BASE_RATE, IX_STREAM_ALLOCATED, IX_STREAM_PLAYING, IX_VOICE_16BIT, IX_VOICE_FLAG4, IX_VOICE_STEREO, IxVoice::leftGain, IxVoice::leftGainHi, IxStream::pending, IxStream::playPos, IxVoice::rate, IxVoice::rightGain, IxVoice::rightGainHi, IxStream::size, IxVoice::start, IxVoice::volume, and IxStream::writePos.

Referenced by ix_dsps_alloc(), and ix_streamer_open_stream_file().

ix_dsps_free()

void ix_dsps_free

(

int

stream

)

Definition at line 88 of file dsps.cpp.

References IxStream::buffer, IxStream::flags, g_1_streams, g_3_nStreamCount, g_nStreamsTaken, IX_DSPS_FILE, ix_dsps_free(), ix_dsps_stop(), ix_log_printf(), IX_STREAM_ALLOCATED, and IX_STREAM_PLAYING.

Referenced by ix_dsps_free(), and ix_streamer_close_stream_file().

ix_dsps_get_buffer_free()

int ix_dsps_get_buffer_free

(

int

stream

)

Definition at line 223 of file dsps.cpp.

References IxStream::buffer, IxVoice::cursor, g_1_streams, g_2_voices, g_3_nStreamCount, g_nVoiceCapacity, IX_DSPS_FILE, ix_dsps_get_buffer_free(), ix_log_printf(), IX_STREAM_ALLOCATED, IxStream::pending, IxStream::playPos, and IxStream::size.

Referenced by ix_dsps_get_buffer_free(), ix_streamer_service_audio(), and ix_thread_service_streams().

ix_dsps_get_flags()

unsigned int ix_dsps_get_flags

(

int

stream

)

Definition at line 212 of file dsps.cpp.

References IxStream::flags, g_1_streams, g_3_nStreamCount, IX_DSPS_FILE, ix_dsps_get_flags(), and ix_log_printf().

Referenced by ix_dsps_get_flags().

ix_dsps_lock()

void ix_dsps_lock	(	int	stream,
		unsigned int	requestedBytes,
		unsigned char **	buffer,
		unsigned int *	lockedBytes )

Definition at line 265 of file dsps.cpp.

References IxStream::buffer, IxStream::flags, g_1_streams, g_3_nStreamCount, IX_DSPS_FILE, ix_dsps_lock(), ix_log_printf(), IX_STREAM_ALLOCATED, IX_STREAM_LOCKED, IxStream::lockLen, IxStream::lockPtr, IxStream::size, and IxStream::writePos.

Referenced by ix_dsps_lock(), and ix_thread_lock_stream_buffer().

ix_dsps_play()

void ix_dsps_play

(

int

stream

)

Definition at line 134 of file dsps.cpp.

References IxStream::buffer, IxVoice::cursor, IxStream::flags, IxVoice::flags, g_1_streams, g_2_voices, g_3_nStreamCount, g_nVoiceCapacity, IX_DSPS_FILE, ix_dsps_play(), ix_log_printf(), IX_STREAM_ALLOCATED, IX_STREAM_PLAYING, IX_VOICE_ACTIVE, and IxStream::playPos.

Referenced by ix_dsps_play(), ix_streamer_service_audio(), and ix_streamer_thread_proc().

ix_dsps_prepare()

void ix_dsps_prepare

(

int

stream

)

Definition at line 109 of file dsps.cpp.

References IxStream::buffer, IxVoice::cursor, g_1_streams, g_2_voices, g_3_nStreamCount, g_nVoiceCapacity, IX_DSPS_FILE, ix_dsps_prepare(), ix_log_printf(), IX_STREAM_ALLOCATED, IX_STREAM_PLAYING, IxStream::pending, IxStream::playPos, and IxStream::writePos.

Referenced by ix_dsps_prepare(), ix_streamer_service_audio(), and ix_streamer_thread_proc().

ix_dsps_set_volume()

void ix_dsps_set_volume	(	int	stream,
		unsigned short	volume )

Definition at line 188 of file dsps.cpp.

References g_1_streams, g_2_voices, g_3_nStreamCount, g_nVoiceCapacity, IX_DSPS_FILE, ix_dsps_set_volume(), ix_log_printf(), IX_STREAM_ALLOCATED, IxVoice::leftGain, IxVoice::leftGainHi, IxVoice::rightGain, IxVoice::rightGainHi, and IxVoice::volume.

Referenced by ix_dsps_set_volume(), ix_streamer_open_stream_file(), and ix_streamer_set_volume().

ix_dsps_stop()

void ix_dsps_stop

(

int

stream

)

Definition at line 161 of file dsps.cpp.

References IxStream::flags, IxVoice::flags, g_1_streams, g_2_voices, g_3_nStreamCount, g_nVoiceCapacity, IX_DSPS_FILE, ix_dsps_stop(), ix_log_printf(), IX_STREAM_ALLOCATED, IX_STREAM_PLAYING, and IX_VOICE_ACTIVE.

Referenced by ix_dsps_free(), ix_dsps_stop(), ix_streamer_force_trigger(), ix_streamer_service_audio(), and ix_streamer_thread_proc().

ix_dsps_unlock()

void ix_dsps_unlock

(

int

stream

)

Definition at line 296 of file dsps.cpp.

References IxStream::flags, g_1_streams, g_3_nStreamCount, IX_DSPS_FILE, ix_dsps_unlock(), ix_log_printf(), IX_STREAM_ALLOCATED, IX_STREAM_LOCKED, IxStream::lockLen, IxStream::pending, IxStream::size, and IxStream::writePos.

Referenced by ix_dsps_unlock(), and ix_thread_lock_stream_buffer().

Variable Documentation

g_1_streams

IxStream g_1_streams[2]

Definition at line 17 of file dsps.cpp.

Referenced by ix_dsps_alloc(), ix_dsps_free(), ix_dsps_get_buffer_free(), ix_dsps_get_flags(), ix_dsps_lock(), ix_dsps_play(), ix_dsps_prepare(), ix_dsps_set_volume(), ix_dsps_stop(), and ix_dsps_unlock().

g_3_nStreamCount

int g_3_nStreamCount

Definition at line 15 of file dsps.cpp.

Referenced by ix_dsp_get_stream_count(), ix_dsp_init(), ix_dsp_set_stream_count(), ix_dsps_alloc(), ix_dsps_free(), ix_dsps_get_buffer_free(), ix_dsps_get_flags(), ix_dsps_lock(), ix_dsps_play(), ix_dsps_prepare(), ix_dsps_set_volume(), ix_dsps_stop(), and ix_dsps_unlock().

g_nStreamsTaken

int g_nStreamsTaken

Definition at line 16 of file dsps.cpp.

Referenced by ix_dsp_set_stream_count(), ix_dsp_set_voice_count(), ix_dsps_alloc(), and ix_dsps_free().