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Bobby Dilley 2022-07-28 12:59:04 +01:00
parent 0f572a5ebe
commit a3eefa45ed
4 changed files with 84 additions and 102 deletions
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124
src/libsegaapi/segaapi.c
View File

@ -2,6 +2,11 @@
Segaapi audio library emulator
Parts stolen from Sega, teknogods and jayfoxrox
Modified by doozer in 2022 to work with Outrun 2 SP under modern Linux
https://www.openal.org/documentation/
https://github.com/teknogods/OpenSegaAPI/blob/master/Opensegaapi/src/opensegaapi.cpp
https://web.archive.org/web/20070218003259/http://www.devmaster.net/articles.php?catID=6
*/
#include <stdio.h>
#include <stdlib.h>
@ -14,20 +19,14 @@
#include <AL/alext.h>
#include <AL/alut.h>
//#include "eax4.h"
#include "segadef.h"
#include "segaerr.h"
#include "segaeax.h"
#include "segaapi.h"
#define TSF_IMPLEMENTATION
#include "tsf.h"
// help and info
// https://www.openal.org/documentation/
// https://github.com/teknogods/OpenSegaAPI/blob/master/Opensegaapi/src/opensegaapi.cpp
// https://web.archive.org/web/20070218003259/http://www.devmaster.net/articles.php?catID=6
//#define DEBUG_SAMPLE
#define DEBUG_OUTPUT
@ -216,36 +215,64 @@ static void dumpWaveBuffer(const char *path, unsigned int channels, unsigned int
}
#endif
ALsizei FramesToBytes(ALsizei size, ALenum channels, ALenum type)
{
switch(channels)
{
case AL_MONO_SOFT: size *= 1; break;
case AL_STEREO_SOFT: size *= 2; break;
case AL_REAR_SOFT: size *= 2; break;
case AL_QUAD_SOFT: size *= 4; break;
case AL_5POINT1_SOFT: size *= 6; break;
case AL_6POINT1_SOFT: size *= 7; break;
case AL_7POINT1_SOFT: size *= 8; break;
}
switch (channels)
{
case AL_MONO_SOFT:
size *= 1;
break;
case AL_STEREO_SOFT:
size *= 2;
break;
case AL_REAR_SOFT:
size *= 2;
break;
case AL_QUAD_SOFT:
size *= 4;
break;
case AL_5POINT1_SOFT:
size *= 6;
break;
case AL_6POINT1_SOFT:
size *= 7;
break;
case AL_7POINT1_SOFT:
size *= 8;
break;
}
switch(type)
{
case AL_BYTE_SOFT: size *= sizeof(ALbyte); break;
case AL_UNSIGNED_BYTE_SOFT: size *= sizeof(ALubyte); break;
case AL_SHORT_SOFT: size *= sizeof(ALshort); break;
case AL_UNSIGNED_SHORT_SOFT: size *= sizeof(ALushort); break;
case AL_INT_SOFT: size *= sizeof(ALint); break;
case AL_UNSIGNED_INT_SOFT: size *= sizeof(ALuint); break;
case AL_FLOAT_SOFT: size *= sizeof(ALfloat); break;
case AL_DOUBLE_SOFT: size *= sizeof(ALdouble); break;
}
switch (type)
{
case AL_BYTE_SOFT:
size *= sizeof(ALbyte);
break;
case AL_UNSIGNED_BYTE_SOFT:
size *= sizeof(ALubyte);
break;
case AL_SHORT_SOFT:
size *= sizeof(ALshort);
break;
case AL_UNSIGNED_SHORT_SOFT:
size *= sizeof(ALushort);
break;
case AL_INT_SOFT:
size *= sizeof(ALint);
break;
case AL_UNSIGNED_INT_SOFT:
size *= sizeof(ALuint);
break;
case AL_FLOAT_SOFT:
size *= sizeof(ALfloat);
break;
case AL_DOUBLE_SOFT:
size *= sizeof(ALdouble);
break;
}
return size;
return size;
}
static unsigned int bufferSampleSize(segaapiContext_t *context)
{ // printf("%s %d\n", __func__, __LINE__);
return context->channels * ((context->sampleFormat == HASF_SIGNED_16PCM) ? 2 : 1);
@ -277,7 +304,6 @@ void AL_APIENTRY wrap_BufferSamples(ALuint buffer, ALuint samplerate,
samplerate);
}
static void updateBufferData(segaapiContext_t *context, unsigned int offset, size_t length)
{
@ -335,18 +361,17 @@ static void updateBufferData(segaapiContext_t *context, unsigned int offset, siz
// CHECK();
if (offset != -1)
{
//printf("CANNOT DO IT\n");
//exit(1);
// printf("CANNOT DO IT\n");
// exit(1);
wrap_BufferSamples(context->alBuffer, context->sampleRate, alFormat, context->size / bufferSampleSize(context), alChannels, alType, &(context->data[offset]));
//alBufferSubSamplesSOFT(context->alBuffer, offset / bufferSampleSize(context), length / bufferSampleSize(context), alChannels, alType, &context->data[offset]);
// CHECK();
// alBufferSubSamplesSOFT(context->alBuffer, offset / bufferSampleSize(context), length / bufferSampleSize(context), alChannels, alType, &context->data[offset]);
// CHECK();
dbgPrint("Soft update in buffer %X at %u (%u bytes) - buffer playing at %u, unsafe region is %u to %u\n", (uintptr_t)context, offset, length, position, unsafe[0], unsafe[1]);
}
else
{
alSourcei(context->alSource, AL_BUFFER, AL_NONE);
// CHECK();
wrap_BufferSamples(context->alBuffer, context->sampleRate, alFormat, context->size / bufferSampleSize(context), alChannels, alType, context->data);
@ -488,30 +513,30 @@ SEGASTATUS SEGAAPI_PlayWithSetup(CTHANDLE hHandle)
return SEGAERR_UNSUPPORTED;
}
HAWOSTATUS SEGAAPI_GetPlaybackStatus(CTHANDLE hHandle)
PlaybackStatus SEGAAPI_GetPlaybackStatus(CTHANDLE hHandle)
{
ALint state;
dbgPrint("SEGAAPI_GetPlaybackStatus() 0x%x", hHandle);
segaapiContext_t *context = hHandle;
if (context == NULL)
return HAWOSTATUS_INVALID;
return PLAYBACK_STATUS_INVALID;
alGetSourcei(context->alSource, AL_SOURCE_STATE, &state);
switch (state)
{
case AL_PLAYING:
return HAWOSTATUS_ACTIVE;
return PLAYBACK_STATUS_ACTIVE;
case AL_PAUSED:
return HAWOSTATUS_PAUSE;
return PLAYBACK_STATUS_PAUSE;
case AL_INITIAL:
case AL_STOPPED:
return HAWOSTATUS_STOP;
return PLAYBACK_STATUS_STOP;
default:
return HAWOSTATUS_INVALID;
return PLAYBACK_STATUS_INVALID;
}
return HAWOSTATUS_INVALID;
return PLAYBACK_STATUS_INVALID;
}
SEGASTATUS SEGAAPI_SetFormat(CTHANDLE hHandle, HAWOSEFORMAT *pFormat)
@ -738,6 +763,7 @@ SEGASTATUS SEGAAPI_SetSynthParam(CTHANDLE hHandle, HASYNTHPARAMSEXT param, CTLON
dbgPrint("SEGAAPI_SetSynthParam() 0x%x 0x%x 0x%x", hHandle, param, lPARWValue);
segaapiContext_t *context = hHandle;
if (context == NULL)
return SEGAERR_BAD_PARAM;
@ -1115,21 +1141,21 @@ SEGASTATUS SEGAAPI_Init(void)
alBufferSamplesSOFT = alGetProcAddress("alBufferSamplesSOFT");
if (alBufferSamplesSOFT == NULL)
{
dbgPrint("Could not resolve AL extension!\n");
//exit(1);
dbgPrint("Warning: Could not resolve AL extension!\n");
// exit(1);
}
alBufferSubSamplesSOFT = alGetProcAddress("alBufferSubSamplesSOFT");
if (alBufferSubSamplesSOFT == NULL)
{
dbgPrint("Could not resolve AL extension!\n");
//exit(1);
dbgPrint("Warning: Could not resolve AL extension!\n");
// exit(1);
}
alGetBufferSamplesSOFT = alGetProcAddress("alGetBufferSamplesSOFT");
if (alGetBufferSamplesSOFT == NULL)
{
dbgPrint("Could not resolve AL extension!\n");
//exit(1);
dbgPrint("Warning: Could not resolve AL extension!\n");
// exit(1);
}
SEGAAPI_SetGlobalEAXProperty((GUID *)&EAXPROPERTYID_EAX40_FXSlot2, 0, (void *)&EAX_NULL_GUID, 16);

18
src/libsegaapi/segaapi.h
View File

@ -120,11 +120,11 @@ typedef enum {
* The Playback status.
*/
typedef enum {
HAWOSTATUS_STOP, /* The voice is stopped */
HAWOSTATUS_ACTIVE, /* The voice is playing */
HAWOSTATUS_PAUSE, /* The voice is paused */
HAWOSTATUS_INVALID = -1 /* Invalid state */
} HAWOSTATUS;
PLAYBACK_STATUS_STOP, /* The voice is stopped */
PLAYBACK_STATUS_ACTIVE, /* The voice is playing */
PLAYBACK_STATUS_PAUSE, /* The voice is paused */
PLAYBACK_STATUS_INVALID = -1 /* Invalid state */
} PlaybackStatus;
/*
@ -420,10 +420,10 @@ SEGASTATUS SEGAAPI_PlayWithSetup(CTHANDLE hHandle);
* An opaque identifier obtained from CreateBuffer.
*
* @return
* One of the playback status defined in the HAWOSTATUS enumration type.
* If the returned status is HAWOSTATUS_INVALID, use GetLastStatus() to check the error code.
* One of the playback status defined in the PlaybackStatus enumration type.
* If the returned status is PLAYBACK_STATUS_INVALID, use GetLastStatus() to check the error code.
*/
HAWOSTATUS SEGAAPI_GetPlaybackStatus(CTHANDLE hHandle);
PlaybackStatus SEGAAPI_GetPlaybackStatus(CTHANDLE hHandle);
@ -989,7 +989,7 @@ CTDWORD SEGAAPI_GetEndLoopOffset(CTHANDLE hHandle);
* the buffer will halt.
*
* Only change the End offset position when buffer is not at
* HAWOSTATUS_ACTIVE state. End Offset must be sample frame aligned.
* PLAYBACK_STATUS_ACTIVE state. End Offset must be sample frame aligned.
* For example, 16-bit 1 channel is WORD aligned, 16-bit 2 channel
* is DWORD aligned.
*

20
src/libsegaapi/segadef.h
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@ -1,23 +1,8 @@
/****************************************************************************
* Copyright (C) 2004 Creative Technology Ltd. All rights reserved.
*
****************************************************************************
* File: segadef.h
*
* This file contains the types definitions for segaapi.
*
****************************************************************************
*/
#ifndef __CTDEF_H
#ifndef __SEGAAPITYPES_H
#define __SEGAAPITYPES_H
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
/* 8 bit signed value */
typedef char CTCHAR, *PCTCHAR, **PPCTCHAR;
@ -66,11 +51,6 @@ typedef void * CTHANDLE;
#endif // INITGUID
#endif // DEFINE_GUID
#ifdef __cplusplus
}
#endif // __cplusplus
#endif /* __SEGAAPITYPES_H */
#endif /* __CTDEF_H */

24
src/libsegaapi/segaeax.h
View File

@ -1,29 +1,8 @@
/**
* Copyright (C) 2005 Creative Technology Ltd. All rights reserved.
*
****************************************************************************
* \file segaeax.cpp
* \brief
* This file contains the definition of Environmental Audio Extensions version 4.0.
* It is duplicated here for SEGAAPI_SetGlobalEAXProperty and SEGAAPI_GetGlobalEAXProperty
* to use.
*
* @author CW Lim
*
* $Date: 2005/02/02 11:59:54 $
*
****************************************************************************
*/
#ifndef __SEGAEAX_H
#define __SEGAEAX_H
#include "segadef.h"
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
#pragma pack(push, 4)
@ -1471,8 +1450,5 @@ typedef struct _EAXRINGMODULATORPROPERTIES
#pragma pack(pop)
#ifdef __cplusplus
}
#endif // __cplusplus
#endif // __SEGAEAX_H