File: sound.cpp

package info (click to toggle)
snes9x 1.26-1
  • links: PTS
  • area: non-free
  • in suites: potato
  • size: 2,712 kB
  • ctags: 9,605
  • sloc: cpp: 40,776; asm: 27,081; ansic: 6,572; makefile: 314
file content (228 lines) | stat: -rw-r--r-- 6,414 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
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
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
/*
 * Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
 *
 * (c) Copyright 1996, 1997, 1998, 1999 Gary Henderson (gary@daniver.demon.co.uk) and
 *                                      Jerremy Koot (jkoot@snes9x.com)
 *
 * Super FX C emulator code 
 * (c) Copyright 1997, 1998, 1999 Ivar (Ivar@snes9x.com) and
 *                                Gary Henderson.
 * Super FX assembler emulator code (c) Copyright 1998 zsKnight and _Demo_.
 *
 * DSP1 emulator code (c) Copyright 1998 Ivar, _Demo_ and Gary Henderson.
 * DOS port code contains the works of other authors. See headers in
 * individual files.
 *
 * Snes9x homepage: www.snes9x.com
 *
 * Permission to use, copy, modify and distribute Snes9x in both binary and
 * source form, for non-commercial purposes, is hereby granted without fee,
 * providing that this license information and copyright notice appear with
 * all copies and any derived work.
 *
 * This software is provided 'as-is', without any express or implied
 * warranty. In no event shall the authors be held liable for any damages
 * arising from the use of this software.
 *
 * Snes9x is freeware for PERSONAL USE only. Commercial users should
 * seek permission of the copyright holders first. Commercial use includes
 * charging money for Snes9x or software derived from Snes9x.
 *
 * The copyright holders request that bug fixes and improvements to the code
 * should be forwarded to them so everyone can benefit from the modifications
 * in future versions.
 *
 * Super NES and Super Nintendo Entertainment System are trademarks of
 * Nintendo Co., Limited and its subsidiary companies.
 */

#include <devices/ahi.h>
#include <exec/exec.h>
#include <proto/ahi.h>
#include <proto/dos.h>
#include <proto/exec.h>
#include <clib/ahippc_protos.h>
#include <stdio.h>

#define EQ ==
#define MINBUFFLEN 10000

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>

#include "snes9x.h"
#include "soundux.h"

extern SoundStatus so;

extern int AudioOpen(unsigned long freq, unsigned long bufsize, unsigned long bitrate, unsigned long stereo);
extern void AudioClose(void);

extern int OpenPrelude(ULONG Type, ULONG DefaultFreq, ULONG MinBuffSize);
extern void ClosePrelude(void);

extern int SoundSignal;
unsigned long DoubleBuffer;
//extern struct AHISampleInfo Sample0;
//extern struct AHISampleInfo Sample1;
//extern unsigned long BufferSize;

struct Library    *AHIPPCBase;
struct Library    *AHIBase;
struct MsgPort    *AHImp=NULL;
struct AHIRequest *AHIio=NULL;
BYTE               AHIDevice=-1;

struct AHIData *AHIData;

unsigned long Frequency = 0;
//unsigned long BufferSize = 0;
unsigned long BitRate = 0;
unsigned long Stereo = 0;
//unsigned long AHIError = 9;

BYTE InternSignal=-1;

int mixsamples;
extern int prelude;

#define REALSIZE (BitRate*Stereo)

struct AHIAudioModeRequester *req=NULL;
struct AHIAudioCtrl *actrl=NULL;

ULONG BufferLen=NULL;


/* this really should be dynamically allocated... */
#undef  MAX_BUFFER_SIZE
#define MAX_BUFFER_SIZE 65536
#define MIN_BUFFER_SIZE 65536

#define MODE_MONO       0
#define MODE_STEREO     1

#define QUAL_8BIT       8
#define QUAL_16BIT      16


int test=0;
int test2=0;

int AudioOpen(unsigned long freq, unsigned long minbufsize, unsigned long bitrate, unsigned long stereo)
{
        ULONG Type;

        Frequency = freq;

    so.playback_rate = Frequency;
    
    if(stereo) so.stereo = TRUE;
    else so.stereo = FALSE;

        switch(bitrate)
        {
                case 8:
            so.sixteen_bit = FALSE;
                        BitRate=1;
                        if(stereo)
                        {
                                Stereo=2;
                                Type = AHIST_S8S;
                        }
                        else
                        {
                                Stereo=1;
                                Type = AHIST_M8S;
                        }

                break;

                default:        //defaulting to 16bit, because it means it won't crash atleast
                case QUAL_16BIT:
            so.sixteen_bit = TRUE;
                        BitRate=2;
                        if(stereo)
                        {
                                Stereo=2;
                                Type = AHIST_S16S;
                        }
                        else
                        {
                                Stereo=1;
                                Type = AHIST_M16S;
                        }
                break;
        }

    if(prelude) prelude = OpenPrelude(Type, freq, minbufsize);
    
    
    if(prelude) return 1; else printf("Defaulting to AHI...\n");

    /* only 1 channel right? */
    /* NOTE: The buffersize will not always be what you requested
     * it finds the minimun AHI requires and then rounds it up to
     * nearest 32 bytes.  Check AHIData->BufferSize or Samples[n].something_Length
     */
    if(AHIData = OpenAHI(1, Type, AHI_INVALID_ID, AHI_DEFAULT_FREQ, 0, minbufsize))
    {
        printf("AHI opened\n");
        printf("BuffSize %d\n", AHIData->BufferSize);
    }
    else
    {
        printf("AHI failed to open: %d\n", AHIData);
        return 0;
    }
    
    so.buffer_size = AHIData->BufferSize; // in bytes
        if (so.buffer_size > MAX_BUFFER_SIZE) so.buffer_size = MAX_BUFFER_SIZE;

    /* Lots of useful fields in the AHIData struct, have a look */
    AHIBase = AHIData->AHIBase;
    actrl = AHIData->AudioCtrl;
    Frequency = AHIData->MixingFreq;

        printf("signal %ld\n", AHIData->SoundFuncSignal);

        Wait(AHIData->SoundFuncSignal);

        /* I don't think it should start playing until there is something
         * In the buffer, however to set off the SoundFunc it should
         * probably go through the buffer at least once, just silently.
         */
        AHI_SetFreq(0, Frequency, actrl, AHISF_IMM);

        Wait(AHIData->SoundFuncSignal);

        AHI_SetVol(0, 0x10000, 0x8000, actrl, AHISF_IMM);

        mixsamples=AHIData->BufferSamples;

        SoundSignal = AHIData->SoundFuncSignal;
    
    return 1;
}

void AudioClose( void )
{
    if(prelude) ClosePrelude();
        else ;//CloseAHI(AHIData);
}


#include <wbstartup.h>

extern int main(int argc, char **argv);

void wbmain(struct WBStartup * argmsg)
{
 char argv[1][]={"WarpSNES"};
 int argc=1;
 main(argc,(char **)argv);
}