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author | Franklin Wei <git@fwei.tk> | 2017-01-21 15:18:31 -0500 |
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committer | Franklin Wei <git@fwei.tk> | 2017-12-23 21:01:26 -0500 |
commit | a855d6202536ff28e5aae4f22a0f31d8f5b325d0 (patch) | |
tree | 8c75f224dd64ed360505afa8843d016b0d75000b /apps/plugins/sdl/src/audio/baudio | |
parent | 01c6dcf6c7b9bb1ad2fa0450f99bacc5f3d3e04b (diff) | |
download | rockbox-a855d6202536ff28e5aae4f22a0f31d8f5b325d0.tar.gz rockbox-a855d6202536ff28e5aae4f22a0f31d8f5b325d0.zip |
Port of Duke Nukem 3D
This ports Fabien Sanglard's Chocolate Duke to run on a version of SDL
for Rockbox.
Change-Id: I8f2c4c78af19de10c1633ed7bb7a997b43256dd9
Diffstat (limited to 'apps/plugins/sdl/src/audio/baudio')
-rw-r--r-- | apps/plugins/sdl/src/audio/baudio/SDL_beaudio.cc | 225 | ||||
-rw-r--r-- | apps/plugins/sdl/src/audio/baudio/SDL_beaudio.h | 39 |
2 files changed, 264 insertions, 0 deletions
diff --git a/apps/plugins/sdl/src/audio/baudio/SDL_beaudio.cc b/apps/plugins/sdl/src/audio/baudio/SDL_beaudio.cc new file mode 100644 index 0000000000..de635f8bad --- /dev/null +++ b/apps/plugins/sdl/src/audio/baudio/SDL_beaudio.cc | |||
@@ -0,0 +1,225 @@ | |||
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 | #include "SDL_config.h" | ||
23 | |||
24 | /* Allow access to the audio stream on BeOS */ | ||
25 | |||
26 | #include <SoundPlayer.h> | ||
27 | |||
28 | #include "../../main/beos/SDL_BeApp.h" | ||
29 | |||
30 | extern "C" { | ||
31 | |||
32 | #include "SDL_audio.h" | ||
33 | #include "../SDL_audio_c.h" | ||
34 | #include "../SDL_sysaudio.h" | ||
35 | #include "../../thread/beos/SDL_systhread_c.h" | ||
36 | #include "SDL_beaudio.h" | ||
37 | |||
38 | |||
39 | /* Audio driver functions */ | ||
40 | static int BE_OpenAudio(_THIS, SDL_AudioSpec *spec); | ||
41 | static void BE_WaitAudio(_THIS); | ||
42 | static void BE_PlayAudio(_THIS); | ||
43 | static Uint8 *BE_GetAudioBuf(_THIS); | ||
44 | static void BE_CloseAudio(_THIS); | ||
45 | |||
46 | /* Audio driver bootstrap functions */ | ||
47 | |||
48 | static int Audio_Available(void) | ||
49 | { | ||
50 | return(1); | ||
51 | } | ||
52 | |||
53 | static void Audio_DeleteDevice(SDL_AudioDevice *device) | ||
54 | { | ||
55 | SDL_free(device->hidden); | ||
56 | SDL_free(device); | ||
57 | } | ||
58 | |||
59 | static SDL_AudioDevice *Audio_CreateDevice(int devindex) | ||
60 | { | ||
61 | SDL_AudioDevice *device; | ||
62 | |||
63 | /* Initialize all variables that we clean on shutdown */ | ||
64 | device = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice)); | ||
65 | if ( device ) { | ||
66 | SDL_memset(device, 0, (sizeof *device)); | ||
67 | device->hidden = (struct SDL_PrivateAudioData *) | ||
68 | SDL_malloc((sizeof *device->hidden)); | ||
69 | } | ||
70 | if ( (device == NULL) || (device->hidden == NULL) ) { | ||
71 | SDL_OutOfMemory(); | ||
72 | if ( device ) { | ||
73 | SDL_free(device); | ||
74 | } | ||
75 | return(0); | ||
76 | } | ||
77 | SDL_memset(device->hidden, 0, (sizeof *device->hidden)); | ||
78 | |||
79 | /* Set the function pointers */ | ||
80 | device->OpenAudio = BE_OpenAudio; | ||
81 | device->WaitAudio = BE_WaitAudio; | ||
82 | device->PlayAudio = BE_PlayAudio; | ||
83 | device->GetAudioBuf = BE_GetAudioBuf; | ||
84 | device->CloseAudio = BE_CloseAudio; | ||
85 | |||
86 | device->free = Audio_DeleteDevice; | ||
87 | |||
88 | return device; | ||
89 | } | ||
90 | |||
91 | AudioBootStrap BAUDIO_bootstrap = { | ||
92 | "baudio", "BeOS BSoundPlayer", | ||
93 | Audio_Available, Audio_CreateDevice | ||
94 | }; | ||
95 | |||
96 | /* The BeOS callback for handling the audio buffer */ | ||
97 | static void FillSound(void *device, void *stream, size_t len, | ||
98 | const media_raw_audio_format &format) | ||
99 | { | ||
100 | SDL_AudioDevice *audio = (SDL_AudioDevice *)device; | ||
101 | |||
102 | /* Silence the buffer, since it's ours */ | ||
103 | SDL_memset(stream, audio->spec.silence, len); | ||
104 | |||
105 | /* Only do soemthing if audio is enabled */ | ||
106 | if ( ! audio->enabled ) | ||
107 | return; | ||
108 | |||
109 | if ( ! audio->paused ) { | ||
110 | if ( audio->convert.needed ) { | ||
111 | SDL_mutexP(audio->mixer_lock); | ||
112 | (*audio->spec.callback)(audio->spec.userdata, | ||
113 | (Uint8 *)audio->convert.buf,audio->convert.len); | ||
114 | SDL_mutexV(audio->mixer_lock); | ||
115 | SDL_ConvertAudio(&audio->convert); | ||
116 | SDL_memcpy(stream,audio->convert.buf,audio->convert.len_cvt); | ||
117 | } else { | ||
118 | SDL_mutexP(audio->mixer_lock); | ||
119 | (*audio->spec.callback)(audio->spec.userdata, | ||
120 | (Uint8 *)stream, len); | ||
121 | SDL_mutexV(audio->mixer_lock); | ||
122 | } | ||
123 | } | ||
124 | return; | ||
125 | } | ||
126 | |||
127 | /* Dummy functions -- we don't use thread-based audio */ | ||
128 | void BE_WaitAudio(_THIS) | ||
129 | { | ||
130 | return; | ||
131 | } | ||
132 | void BE_PlayAudio(_THIS) | ||
133 | { | ||
134 | return; | ||
135 | } | ||
136 | Uint8 *BE_GetAudioBuf(_THIS) | ||
137 | { | ||
138 | return(NULL); | ||
139 | } | ||
140 | |||
141 | void BE_CloseAudio(_THIS) | ||
142 | { | ||
143 | if ( audio_obj ) { | ||
144 | audio_obj->Stop(); | ||
145 | delete audio_obj; | ||
146 | audio_obj = NULL; | ||
147 | } | ||
148 | |||
149 | /* Quit the Be Application, if there's nothing left to do */ | ||
150 | SDL_QuitBeApp(); | ||
151 | } | ||
152 | |||
153 | int BE_OpenAudio(_THIS, SDL_AudioSpec *spec) | ||
154 | { | ||
155 | int valid_datatype = 0; | ||
156 | media_raw_audio_format format; | ||
157 | Uint16 test_format = SDL_FirstAudioFormat(spec->format); | ||
158 | |||
159 | /* Parse the audio format and fill the Be raw audio format */ | ||
160 | memset(&format, '\0', sizeof (media_raw_audio_format)); | ||
161 | format.byte_order = B_MEDIA_LITTLE_ENDIAN; | ||
162 | format.frame_rate = (float) spec->freq; | ||
163 | format.channel_count = spec->channels; /* !!! FIXME: support > 2? */ | ||
164 | while ((!valid_datatype) && (test_format)) { | ||
165 | valid_datatype = 1; | ||
166 | spec->format = test_format; | ||
167 | switch (test_format) { | ||
168 | case AUDIO_S8: | ||
169 | format.format = media_raw_audio_format::B_AUDIO_CHAR; | ||
170 | break; | ||
171 | |||
172 | case AUDIO_U8: | ||
173 | format.format = media_raw_audio_format::B_AUDIO_UCHAR; | ||
174 | break; | ||
175 | |||
176 | case AUDIO_S16LSB: | ||
177 | format.format = media_raw_audio_format::B_AUDIO_SHORT; | ||
178 | break; | ||
179 | |||
180 | case AUDIO_S16MSB: | ||
181 | format.format = media_raw_audio_format::B_AUDIO_SHORT; | ||
182 | format.byte_order = B_MEDIA_BIG_ENDIAN; | ||
183 | break; | ||
184 | |||
185 | default: | ||
186 | valid_datatype = 0; | ||
187 | test_format = SDL_NextAudioFormat(); | ||
188 | break; | ||
189 | } | ||
190 | } | ||
191 | |||
192 | if (!valid_datatype) { /* shouldn't happen, but just in case... */ | ||
193 | SDL_SetError("Unsupported audio format"); | ||
194 | return (-1); | ||
195 | } | ||
196 | |||
197 | /* Initialize the Be Application, if it's not already started */ | ||
198 | if (SDL_InitBeApp() < 0) { | ||
199 | return (-1); | ||
200 | } | ||
201 | |||
202 | format.buffer_size = spec->samples; | ||
203 | |||
204 | /* Calculate the final parameters for this audio specification */ | ||
205 | SDL_CalculateAudioSpec(spec); | ||
206 | |||
207 | /* Subscribe to the audio stream (creates a new thread) */ | ||
208 | { sigset_t omask; | ||
209 | SDL_MaskSignals(&omask); | ||
210 | audio_obj = new BSoundPlayer(&format, "SDL Audio", FillSound, | ||
211 | NULL, _this); | ||
212 | SDL_UnmaskSignals(&omask); | ||
213 | } | ||
214 | if ( audio_obj->Start() == B_NO_ERROR ) { | ||
215 | audio_obj->SetHasData(true); | ||
216 | } else { | ||
217 | SDL_SetError("Unable to start Be audio"); | ||
218 | return(-1); | ||
219 | } | ||
220 | |||
221 | /* We're running! */ | ||
222 | return(1); | ||
223 | } | ||
224 | |||
225 | }; /* Extern C */ | ||
diff --git a/apps/plugins/sdl/src/audio/baudio/SDL_beaudio.h b/apps/plugins/sdl/src/audio/baudio/SDL_beaudio.h new file mode 100644 index 0000000000..adaf1dee5d --- /dev/null +++ b/apps/plugins/sdl/src/audio/baudio/SDL_beaudio.h | |||
@@ -0,0 +1,39 @@ | |||
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 | #include "SDL_config.h" | ||
23 | |||
24 | #ifndef _SDL_lowaudio_h | ||
25 | #define _SDL_lowaudio_h | ||
26 | |||
27 | #include "../SDL_sysaudio.h" | ||
28 | |||
29 | /* Hidden "this" pointer for the video functions */ | ||
30 | #define _THIS SDL_AudioDevice *_this | ||
31 | |||
32 | struct SDL_PrivateAudioData { | ||
33 | BSoundPlayer *audio_obj; | ||
34 | }; | ||
35 | |||
36 | /* Old variable names */ | ||
37 | #define audio_obj (_this->hidden->audio_obj) | ||
38 | |||
39 | #endif /* _SDL_lowaudio_h */ | ||