| 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 | |