diff options
Diffstat (limited to 'apps/plugins/sdl/src/audio/disk/SDL_diskaudio.c')
-rw-r--r-- | apps/plugins/sdl/src/audio/disk/SDL_diskaudio.c | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/apps/plugins/sdl/src/audio/disk/SDL_diskaudio.c b/apps/plugins/sdl/src/audio/disk/SDL_diskaudio.c deleted file mode 100644 index c45d3f8c05..0000000000 --- a/apps/plugins/sdl/src/audio/disk/SDL_diskaudio.c +++ /dev/null | |||
@@ -1,186 +0,0 @@ | |||
1 | /* | ||
2 | SDL - Simple DirectMedia Layer | ||
3 | Copyright (C) 1997-2012 Sam Lantinga | ||
4 | |||
5 | This library is free software; you can redistribute it and/or | ||
6 | modify it under the terms of the GNU Lesser General Public | ||
7 | License as published by the Free Software Foundation; either | ||
8 | version 2.1 of the License, or (at your option) any later version. | ||
9 | |||
10 | This library is distributed in the hope that it will be useful, | ||
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Lesser General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Lesser General Public | ||
16 | License along with this library; if not, write to the Free Software | ||
17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
18 | |||
19 | Sam Lantinga | ||
20 | slouken@libsdl.org | ||
21 | |||
22 | This file written by Ryan C. Gordon (icculus@icculus.org) | ||
23 | */ | ||
24 | #include "SDL_config.h" | ||
25 | |||
26 | /* Output raw audio data to a file. */ | ||
27 | |||
28 | #if HAVE_STDIO_H | ||
29 | #include <stdio.h> | ||
30 | #endif | ||
31 | |||
32 | #include "SDL_rwops.h" | ||
33 | #include "SDL_timer.h" | ||
34 | #include "SDL_audio.h" | ||
35 | #include "../SDL_audiomem.h" | ||
36 | #include "../SDL_audio_c.h" | ||
37 | #include "../SDL_audiodev_c.h" | ||
38 | #include "SDL_diskaudio.h" | ||
39 | |||
40 | /* The tag name used by DISK audio */ | ||
41 | #define DISKAUD_DRIVER_NAME "disk" | ||
42 | |||
43 | /* environment variables and defaults. */ | ||
44 | #define DISKENVR_OUTFILE "SDL_DISKAUDIOFILE" | ||
45 | #define DISKDEFAULT_OUTFILE "/sdlaudio.raw" | ||
46 | #define DISKENVR_WRITEDELAY "SDL_DISKAUDIODELAY" | ||
47 | #define DISKDEFAULT_WRITEDELAY 150 | ||
48 | |||
49 | /* Audio driver functions */ | ||
50 | static int DISKAUD_OpenAudio(_THIS, SDL_AudioSpec *spec); | ||
51 | static void DISKAUD_WaitAudio(_THIS); | ||
52 | static void DISKAUD_PlayAudio(_THIS); | ||
53 | static Uint8 *DISKAUD_GetAudioBuf(_THIS); | ||
54 | static void DISKAUD_CloseAudio(_THIS); | ||
55 | |||
56 | static const char *DISKAUD_GetOutputFilename(void) | ||
57 | { | ||
58 | const char *envr = SDL_getenv(DISKENVR_OUTFILE); | ||
59 | return((envr != NULL) ? envr : DISKDEFAULT_OUTFILE); | ||
60 | } | ||
61 | |||
62 | /* Audio driver bootstrap functions */ | ||
63 | static int DISKAUD_Available(void) | ||
64 | { | ||
65 | //const char *envr = SDL_getenv("SDL_AUDIODRIVER"); | ||
66 | // if (envr && (SDL_strcmp(envr, DISKAUD_DRIVER_NAME) == 0)) { | ||
67 | return(1); | ||
68 | // } | ||
69 | // return(0); | ||
70 | } | ||
71 | |||
72 | static void DISKAUD_DeleteDevice(SDL_AudioDevice *device) | ||
73 | { | ||
74 | SDL_free(device->hidden); | ||
75 | SDL_free(device); | ||
76 | } | ||
77 | |||
78 | static SDL_AudioDevice *DISKAUD_CreateDevice(int devindex) | ||
79 | { | ||
80 | SDL_AudioDevice *this; | ||
81 | const char *envr; | ||
82 | |||
83 | /* Initialize all variables that we clean on shutdown */ | ||
84 | this = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice)); | ||
85 | if ( this ) { | ||
86 | SDL_memset(this, 0, (sizeof *this)); | ||
87 | this->hidden = (struct SDL_PrivateAudioData *) | ||
88 | SDL_malloc((sizeof *this->hidden)); | ||
89 | } | ||
90 | if ( (this == NULL) || (this->hidden == NULL) ) { | ||
91 | SDL_OutOfMemory(); | ||
92 | if ( this ) { | ||
93 | SDL_free(this); | ||
94 | } | ||
95 | return(0); | ||
96 | } | ||
97 | SDL_memset(this->hidden, 0, (sizeof *this->hidden)); | ||
98 | |||
99 | envr = SDL_getenv(DISKENVR_WRITEDELAY); | ||
100 | this->hidden->write_delay = (envr) ? SDL_atoi(envr) : DISKDEFAULT_WRITEDELAY; | ||
101 | |||
102 | /* Set the function pointers */ | ||
103 | this->OpenAudio = DISKAUD_OpenAudio; | ||
104 | this->WaitAudio = DISKAUD_WaitAudio; | ||
105 | this->PlayAudio = DISKAUD_PlayAudio; | ||
106 | this->GetAudioBuf = DISKAUD_GetAudioBuf; | ||
107 | this->CloseAudio = DISKAUD_CloseAudio; | ||
108 | |||
109 | this->free = DISKAUD_DeleteDevice; | ||
110 | |||
111 | return this; | ||
112 | } | ||
113 | |||
114 | AudioBootStrap DISKAUD_bootstrap = { | ||
115 | DISKAUD_DRIVER_NAME, "direct-to-disk audio", | ||
116 | DISKAUD_Available, DISKAUD_CreateDevice | ||
117 | }; | ||
118 | |||
119 | /* This function waits until it is possible to write a full sound buffer */ | ||
120 | static void DISKAUD_WaitAudio(_THIS) | ||
121 | { | ||
122 | SDL_Delay(this->hidden->write_delay); | ||
123 | } | ||
124 | |||
125 | static void DISKAUD_PlayAudio(_THIS) | ||
126 | { | ||
127 | int written; | ||
128 | |||
129 | /* Write the audio data */ | ||
130 | written = SDL_RWwrite(this->hidden->output, | ||
131 | this->hidden->mixbuf, 1, | ||
132 | this->hidden->mixlen); | ||
133 | |||
134 | /* If we couldn't write, assume fatal error for now */ | ||
135 | if ( (Uint32)written != this->hidden->mixlen ) { | ||
136 | this->enabled = 0; | ||
137 | } | ||
138 | #ifdef DEBUG_AUDIO | ||
139 | fprintf(stderr, "Wrote %d bytes of audio data\n", written); | ||
140 | #endif | ||
141 | } | ||
142 | |||
143 | static Uint8 *DISKAUD_GetAudioBuf(_THIS) | ||
144 | { | ||
145 | return(this->hidden->mixbuf); | ||
146 | } | ||
147 | |||
148 | static void DISKAUD_CloseAudio(_THIS) | ||
149 | { | ||
150 | if ( this->hidden->mixbuf != NULL ) { | ||
151 | SDL_FreeAudioMem(this->hidden->mixbuf); | ||
152 | this->hidden->mixbuf = NULL; | ||
153 | } | ||
154 | if ( this->hidden->output != NULL ) { | ||
155 | SDL_RWclose(this->hidden->output); | ||
156 | this->hidden->output = NULL; | ||
157 | } | ||
158 | } | ||
159 | |||
160 | static int DISKAUD_OpenAudio(_THIS, SDL_AudioSpec *spec) | ||
161 | { | ||
162 | const char *fname = DISKAUD_GetOutputFilename(); | ||
163 | |||
164 | /* Open the audio device */ | ||
165 | this->hidden->output = SDL_RWFromFile(fname, "wb"); | ||
166 | if ( this->hidden->output == NULL ) { | ||
167 | return(-1); | ||
168 | } | ||
169 | |||
170 | #if HAVE_STDIO_H | ||
171 | fprintf(stderr, "WARNING: You are using the SDL disk writer" | ||
172 | " audio driver!\n Writing to file [%s].\n", fname); | ||
173 | #endif | ||
174 | |||
175 | /* Allocate mixing buffer */ | ||
176 | this->hidden->mixlen = spec->size; | ||
177 | this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen); | ||
178 | if ( this->hidden->mixbuf == NULL ) { | ||
179 | return(-1); | ||
180 | } | ||
181 | SDL_memset(this->hidden->mixbuf, spec->silence, spec->size); | ||
182 | |||
183 | /* We're ready to rock and roll. :-) */ | ||
184 | return(0); | ||
185 | } | ||
186 | |||