sdl-ios-xcode: src/audio/baudio/SDL

annotate src/audio/baudio/SDL_beaudio.cc @ 1675:d33dcfc3fde7 SDL-1.3

Overlay functions are being replaced by YUV textures. If the driver doesn't support YUV textures, they can be emulated by backing the texture with an RGB texture and using the software conversion routines. Note that it doesn't make sense to lock a portion of a YV12 texture, since you'd need to return three pixel pointers and pitch values instead of the one that's available through the API. I'm guessing that's one of the reasons DirectX 9 doesn't support this format at all.

author	Sam Lantinga <slouken@libsdl.org>
date	Sun, 11 Jun 2006 07:30:16 +0000
parents	4da1ee79c9af
children

rev	line source
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2 SDL - Simple DirectMedia Layer
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 252 diff changeset	3 Copyright (C) 1997-2006 Sam Lantinga
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	4
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	5 This library is free software; you can redistribute it and/or
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 252 diff changeset	6 modify it under the terms of the GNU Lesser General Public
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	7 License as published by the Free Software Foundation; either
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 252 diff changeset	8 version 2.1 of the License, or (at your option) any later version.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	9
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 252 diff changeset	13 Lesser General Public License for more details.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	14
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 252 diff changeset	15 You should have received a copy of the GNU Lesser General Public
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 252 diff changeset	16 License along with this library; if not, write to the Free Software
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 252 diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	18
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	19 Sam Lantinga
252 e8157fcb3114 Updated the source with the correct e-mail address Sam Lantinga <slouken@libsdl.org> parents: 114 diff changeset	20 slouken@libsdl.org
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	21 */
1403 376665398b25 Catch the C++ and Objective C sources too... Sam Lantinga <slouken@libsdl.org> parents: 1367 diff changeset	22 #include "SDL_config.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	23
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	24 /* Allow access to the audio stream on BeOS */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	25
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26 #include <SoundPlayer.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	27
1367 e440d5c488c1 Fixes for BeOS and Solaris builds Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	28 #include "../../main/beos/SDL_BeApp.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	29
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	30 extern "C"
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	31 {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	32
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	33 #include "SDL_audio.h"
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	34 #include "../SDL_audio_c.h"
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	35 #include "../SDL_sysaudio.h"
1367 e440d5c488c1 Fixes for BeOS and Solaris builds Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	36 #include "../../thread/beos/SDL_systhread_c.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	37 #include "SDL_beaudio.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	38
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	39
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	40 /* Audio driver functions */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	41 static int BE_OpenAudio(_THIS, SDL_AudioSpec * spec);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	42 static void BE_WaitAudio(_THIS);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	43 static void BE_PlayAudio(_THIS);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	44 static Uint8 *BE_GetAudioBuf(_THIS);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	45 static void BE_CloseAudio(_THIS);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	46
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	47 /* Audio driver bootstrap functions */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	48
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	49 static int Audio_Available(void)
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	50 {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	51 return (1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	52 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	53
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	54 static void Audio_DeleteDevice(SDL_AudioDevice * device)
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	55 {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	56 SDL_free(device->hidden);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	57 SDL_free(device);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	58 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	59
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	60 static SDL_AudioDevice *Audio_CreateDevice(int devindex)
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	61 {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	62 SDL_AudioDevice *device;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	63
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	64 /* Initialize all variables that we clean on shutdown */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	65 device = (SDL_AudioDevice *) SDL_malloc(sizeof(SDL_AudioDevice));
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	66 if (device) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	67 SDL_memset(device, 0, (sizeof *device));
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	68 device->hidden = (struct SDL_PrivateAudioData *)
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	69 SDL_malloc((sizeof *device->hidden));
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	70 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	71 if ((device == NULL) \|\| (device->hidden == NULL)) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	72 SDL_OutOfMemory();
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	73 if (device) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	74 SDL_free(device);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	75 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	76 return (0);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	77 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	78 SDL_memset(device->hidden, 0, (sizeof *device->hidden));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	79
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	80 /* Set the function pointers */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	81 device->OpenAudio = BE_OpenAudio;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	82 device->WaitAudio = BE_WaitAudio;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	83 device->PlayAudio = BE_PlayAudio;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	84 device->GetAudioBuf = BE_GetAudioBuf;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	85 device->CloseAudio = BE_CloseAudio;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	86
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	87 device->free = Audio_DeleteDevice;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	88
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	89 return device;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	90 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	91
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	92 AudioBootStrap BAUDIO_bootstrap = {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	93 "baudio", "BeOS BSoundPlayer",
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	94 Audio_Available, Audio_CreateDevice
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	95 };
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	96
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	97 /* The BeOS callback for handling the audio buffer */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	98 static void FillSound(void device, void stream, size_t len,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	99 const media_raw_audio_format & format)
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	100 {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	101 SDL_AudioDevice audio = (SDL_AudioDevice ) device;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	102
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	103 /* Silence the buffer, since it's ours */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	104 SDL_memset(stream, audio->spec.silence, len);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	105
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	106 /* Only do soemthing if audio is enabled */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	107 if (!audio->enabled)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	108 return;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	109
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	110 if (!audio->paused) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	111 if (audio->convert.needed) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	112 SDL_mutexP(audio->mixer_lock);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	113 (*audio->spec.callback) (audio->spec.userdata,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	114 (Uint8 *) audio->convert.buf,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	115 audio->convert.len);
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	116 SDL_mutexV(audio->mixer_lock);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	117 SDL_ConvertAudio(&audio->convert);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	118 SDL_memcpy(stream, audio->convert.buf,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	119 audio->convert.len_cvt);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	120 } else {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	121 SDL_mutexP(audio->mixer_lock);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	122 (*audio->spec.callback) (audio->spec.userdata,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	123 (Uint8 *) stream, len);
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	124 SDL_mutexV(audio->mixer_lock);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	125 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	126 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	127 return;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	128 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	129
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	130 /* Dummy functions -- we don't use thread-based audio */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	131 void BE_WaitAudio(_THIS)
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	132 {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	133 return;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	134 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	135 void BE_PlayAudio(_THIS)
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	136 {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	137 return;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	138 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	139 Uint8 *BE_GetAudioBuf(_THIS)
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	140 {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	141 return (NULL);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	142 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	143
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	144 void BE_CloseAudio(_THIS)
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	145 {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	146 if (audio_obj) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	147 audio_obj->Stop();
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	148 delete audio_obj;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	149 audio_obj = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	150 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	151
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	152 /* Quit the Be Application, if there's nothing left to do */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	153 SDL_QuitBeApp();
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	154 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	155
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	156 int BE_OpenAudio(_THIS, SDL_AudioSpec * spec)
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	157 {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	158 media_raw_audio_format format;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	159
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	160 /* Initialize the Be Application, if it's not already started */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	161 if (SDL_InitBeApp() < 0) {
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	162 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	163 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	164
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	165 /* Parse the audio format and fill the Be raw audio format */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	166 format.frame_rate = (float) spec->freq;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	167 format.channel_count = spec->channels;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	168 switch (spec->format & ~0x1000) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	169 case AUDIO_S8:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	170 /* Signed 8-bit audio unsupported, convert to U8 */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	171 spec->format = AUDIO_U8;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	172 case AUDIO_U8:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	173 format.format = media_raw_audio_format::B_AUDIO_UCHAR;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	174 format.byte_order = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	175 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	176 case AUDIO_U16:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	177 /* Unsigned 16-bit audio unsupported, convert to S16 */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	178 spec->format ^= 0x8000;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	179 case AUDIO_S16:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	180 format.format = media_raw_audio_format::B_AUDIO_SHORT;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	181 if (spec->format & 0x1000) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	182 format.byte_order = 1; /* Big endian */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	183 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	184 format.byte_order = 2; /* Little endian */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	185 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	186 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	187 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	188 format.buffer_size = spec->samples;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	189
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	190 /* Calculate the final parameters for this audio specification */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	191 SDL_CalculateAudioSpec(spec);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	192
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	193 /* Subscribe to the audio stream (creates a new thread) */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	194 {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	195 sigset_t omask;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	196 SDL_MaskSignals(&omask);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	197 audio_obj = new BSoundPlayer(&format, "SDL Audio", FillSound,
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	198 NULL, _this);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	199 SDL_UnmaskSignals(&omask);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	200 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	201 if (audio_obj->Start() == B_NO_ERROR) {
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	202 audio_obj->SetHasData(true);
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	203 } else {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	204 SDL_SetError("Unable to start Be audio");
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	205 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	206 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	207
1662 782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	208 /* We're running! */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	209 return (1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	210 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	211
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	212 }; /* Extern C */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	213
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. Sam Lantinga <slouken@libsdl.org> parents: 1403 diff changeset	214 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/audio/baudio/SDL_beaudio.cc @ 1675:d33dcfc3fde7 SDL-1.3