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1 | /* FCE Ultra - NES/Famicom Emulator |
2 | * |
3 | * Copyright notice for this file: |
4 | * Copyright (C) 2002 Xodnizel |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify |
7 | * it under the terms of the GNU General Public License as published by |
8 | * the Free Software Foundation; either version 2 of the License, or |
9 | * (at your option) any later version. |
10 | * |
11 | * This program is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | * GNU General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU General Public License |
17 | * along with this program; if not, write to the Free Software |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 | */ |
20 | |
21 | #include <stdio.h> |
22 | #include <string.h> |
23 | #include <stdlib.h> |
24 | #include <sys/time.h> |
25 | #include <pthread.h> |
26 | #include <unistd.h> |
27 | #include <sys/ioctl.h> |
28 | #include <linux/soundcard.h> |
29 | |
30 | #include "sdl.h" |
31 | #include "minimal.h" |
32 | |
33 | #define GP2X_SOUND 1 |
34 | |
35 | extern void pthread_yield(void); |
36 | extern void FCEUI_FrameSkip(int x); |
37 | |
38 | //extern int dosound; |
39 | extern int soundvol; |
40 | |
41 | // always have this call |
42 | INLINE void gp2x_sound_frame(void *blah, void *buff, int samples) |
43 | { |
44 | } |
45 | |
46 | |
47 | |
48 | |
49 | |
50 | //static int sexy_in_function=0; |
51 | #define NumSexyBufferBuffers 2 |
52 | struct timespec gp2x_sleep_ts; |
53 | int firstentry=1; |
54 | //int firstprint=1; |
55 | struct timeval sleeptimer; |
56 | |
57 | |
58 | |
59 | pthread_t gp2x_sexy_sound_thread=0; |
60 | int** SexyBufferBuffers=NULL; |
61 | int SexyBufferBufferCounts[NumSexyBufferBuffers]; |
62 | int gp2x_sound_inited=0; |
63 | int gp2x_in_sound_thread=0; |
64 | extern unsigned long gp2x_dev[8]; |
65 | |
66 | pthread_cond_t gp2x_sound_cond=PTHREAD_COND_INITIALIZER; |
67 | pthread_mutex_t gp2x_sound_mutex = PTHREAD_MUTEX_INITIALIZER; |
68 | int zzdebug01_entry=0; |
69 | int zzdebug01_wait=0; |
70 | int hasSound=0; |
71 | extern unsigned long fps; |
72 | extern unsigned long avg_fps; |
73 | extern unsigned long ticks; |
74 | |
75 | int throttlecount=0; |
76 | |
77 | void WriteSound(int32 *Buffer, int Count) |
78 | { |
79 | write(gp2x_dev[3], Buffer, Count<<1); |
80 | pthread_yield(); |
81 | SpeedThrottle(); |
82 | } |
83 | |
84 | void* gp2x_write_sound(void* blah) |
85 | { |
86 | gp2x_in_sound_thread=1; |
87 | { |
88 | if (hasSound) |
89 | { |
90 | hasSound=0; |
91 | } |
92 | else |
93 | { |
94 | } |
95 | |
96 | } |
97 | gp2x_in_sound_thread=0; |
98 | return NULL; |
99 | } |
100 | |
101 | void SilenceSound(int n) |
102 | { |
103 | soundvol=0; |
104 | } |
105 | |
106 | int InitSound(FCEUGI *gi) |
107 | { |
108 | Settings.sound=22050; |
109 | FCEUI_Sound(Settings.sound); |
110 | gp2x_sound_volume(soundvol, soundvol); |
111 | printf("InitSound() sound_rate: %d\n", Settings.sound); |
112 | if(firstentry) |
113 | { |
114 | firstentry=0; |
115 | gp2x_sound_inited=1; |
116 | } |
117 | return 1 ; |
118 | } |
119 | |
120 | uint32 GetMaxSound(void) |
121 | { |
122 | return(4096); |
123 | } |
124 | |
125 | uint32 GetWriteSound(void) |
126 | { |
127 | return 1024; |
128 | } |
129 | |
130 | int KillSound(void) |
131 | { |
132 | FCEUI_Sound(0); |
133 | gp2x_sound_inited=0; |
134 | |
135 | return 1; |
136 | } |
137 | |
138 | |
139 | |
140 | |