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

annotate src/audio/dmedia/SDL_irixaudio.c @ 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: 903 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: 903 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: 903 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: 903 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: 903 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: 903 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: 903 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: 148 diff changeset	20 slouken@libsdl.org
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	21 */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 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 a raw mixing buffer (For IRIX 6.5 and higher) */
903 6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	25 /* patch for IRIX 5 by Georg Schwarz 18/07/2004 */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	27 #include "SDL_timer.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	28 #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	29 #include "../SDL_audiomem.h"
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	30 #include "../SDL_audio_c.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	31 #include "SDL_irixaudio.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	32
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	33
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: 1402 diff changeset	34 #ifndef AL_RESOURCE /* as a test whether we use the old IRIX audio libraries */
903 6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	35 #define OLD_IRIX_AUDIO
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	36 #define alClosePort(x) ALcloseport(x)
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	37 #define alFreeConfig(x) ALfreeconfig(x)
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	38 #define alGetFillable(x) ALgetfillable(x)
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	39 #define alNewConfig() ALnewconfig()
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	40 #define alOpenPort(x,y,z) ALopenport(x,y,z)
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	41 #define alSetChannels(x,y) ALsetchannels(x,y)
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	42 #define alSetQueueSize(x,y) ALsetqueuesize(x,y)
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	43 #define alSetSampFmt(x,y) ALsetsampfmt(x,y)
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	44 #define alSetWidth(x,y) ALsetwidth(x,y)
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	45 #endif
6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	46
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	47 /* Audio driver functions */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	48 static int AL_OpenAudio(_THIS, SDL_AudioSpec * spec);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	49 static void AL_WaitAudio(_THIS);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	50 static void AL_PlayAudio(_THIS);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	51 static Uint8 *AL_GetAudioBuf(_THIS);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	52 static void AL_CloseAudio(_THIS);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	53
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	54 /* Audio driver bootstrap functions */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	55
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: 1402 diff changeset	56 static int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	57 Audio_Available(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	58 {
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: 1402 diff changeset	59 return 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	60 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	61
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: 1402 diff changeset	62 static void
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	63 Audio_DeleteDevice(SDL_AudioDevice * device)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	64 {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	65 SDL_free(device->hidden);
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	66 SDL_free(device);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	67 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	68
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: 1402 diff changeset	69 static SDL_AudioDevice *
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	70 Audio_CreateDevice(int devindex)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	71 {
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: 1402 diff changeset	72 SDL_AudioDevice *this;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	73
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: 1402 diff changeset	74 /* Initialize all variables that we clean on shutdown */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	75 this = (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: 1402 diff changeset	76 if (this) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	77 SDL_memset(this, 0, (sizeof *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: 1402 diff changeset	78 this->hidden = (struct SDL_PrivateAudioData *)
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	79 SDL_malloc((sizeof *this->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: 1402 diff changeset	80 }
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: 1402 diff changeset	81 if ((this == NULL) \|\| (this->hidden == NULL)) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	82 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: 1402 diff changeset	83 if (this) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	84 SDL_free(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: 1402 diff changeset	85 }
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: 1402 diff changeset	86 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: 1402 diff changeset	87 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	88 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	89
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: 1402 diff changeset	90 /* 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: 1402 diff changeset	91 this->OpenAudio = AL_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: 1402 diff changeset	92 this->WaitAudio = AL_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: 1402 diff changeset	93 this->PlayAudio = AL_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: 1402 diff changeset	94 this->GetAudioBuf = AL_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: 1402 diff changeset	95 this->CloseAudio = AL_CloseAudio;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	96
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: 1402 diff changeset	97 this->free = Audio_DeleteDevice;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	98
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: 1402 diff changeset	99 return this;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	100 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	101
148 8758b8d42cd9 Audio subsystem no longer assumes sun audio API on UNIX systems Sam Lantinga <slouken@libsdl.org> parents: 0 diff changeset	102 AudioBootStrap DMEDIA_bootstrap = {
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: 1402 diff changeset	103 "AL", "IRIX DMedia audio",
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: 1402 diff changeset	104 Audio_Available, Audio_CreateDevice
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	105 };
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	106
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	107
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: 1402 diff changeset	108 void static
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	109 AL_WaitAudio(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	110 {
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: 1402 diff changeset	111 Sint32 timeleft;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	112
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	113 timeleft = this->spec.samples - alGetFillable(audio_port);
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: 1402 diff changeset	114 if (timeleft > 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: 1402 diff changeset	115 timeleft /= (this->spec.freq / 1000);
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	116 SDL_Delay((Uint32) timeleft);
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: 1402 diff changeset	117 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	118 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	119
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: 1402 diff changeset	120 static void
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	121 AL_PlayAudio(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	122 {
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: 1402 diff changeset	123 /* Write the audio data out */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	124 if (alWriteFrames(audio_port, mixbuf, this->spec.samples) < 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: 1402 diff changeset	125 /* Assume fatal error, for now */
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: 1402 diff changeset	126 this->enabled = 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: 1402 diff changeset	127 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	128 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	129
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: 1402 diff changeset	130 static Uint8 *
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	131 AL_GetAudioBuf(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	132 {
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: 1402 diff changeset	133 return (mixbuf);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	134 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	135
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: 1402 diff changeset	136 static void
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	137 AL_CloseAudio(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	138 {
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: 1402 diff changeset	139 if (mixbuf != NULL) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	140 SDL_FreeAudioMem(mixbuf);
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: 1402 diff changeset	141 mixbuf = 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: 1402 diff changeset	142 }
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: 1402 diff changeset	143 if (audio_port != NULL) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	144 alClosePort(audio_port);
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: 1402 diff changeset	145 audio_port = 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: 1402 diff changeset	146 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	147 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	148
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: 1402 diff changeset	149 static int
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	150 AL_OpenAudio(_THIS, SDL_AudioSpec * spec)
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: 1402 diff changeset	152 ALconfig audio_config;
903 6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	153 #ifdef OLD_IRIX_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: 1402 diff changeset	154 long audio_param[2];
903 6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	155 #else
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: 1402 diff changeset	156 ALpv audio_param;
903 6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	157 #endif
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: 1402 diff changeset	158 int width;
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: 1402 diff changeset	160 /* Determine the audio parameters from the AudioSpec */
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: 1402 diff changeset	161 switch (spec->format & 0xFF) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	162
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: 1402 diff changeset	163 case 8:
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: 1402 diff changeset	164 { /* Signed 8 bit audio data */
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: 1402 diff changeset	165 spec->format = 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: 1402 diff changeset	166 width = AL_SAMPLE_8;
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: 1402 diff changeset	167 }
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: 1402 diff changeset	168 break;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	169
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: 1402 diff changeset	170 case 16:
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: 1402 diff changeset	171 { /* Signed 16 bit audio data */
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: 1402 diff changeset	172 spec->format = AUDIO_S16MSB;
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: 1402 diff changeset	173 width = AL_SAMPLE_16;
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: 1402 diff changeset	174 }
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: 1402 diff changeset	175 break;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	176
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: 1402 diff changeset	177 default:
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: 1402 diff changeset	178 {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	179 SDL_SetError("Unsupported audio 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: 1402 diff changeset	180 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: 1402 diff changeset	181 }
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: 1402 diff changeset	182 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	183
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: 1402 diff changeset	184 /* Update the fragment size as size in bytes */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	185 SDL_CalculateAudioSpec(spec);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	186
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: 1402 diff changeset	187 /* Set output frequency */
903 6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	188 #ifdef OLD_IRIX_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: 1402 diff changeset	189 audio_param[0] = AL_OUTPUT_RATE;
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: 1402 diff changeset	190 audio_param[1] = spec->freq;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	191 if (ALsetparams(AL_DEFAULT_DEVICE, audio_param, 2) < 0) {
903 6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	192 #else
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: 1402 diff changeset	193 audio_param.param = AL_RATE;
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: 1402 diff changeset	194 audio_param.value.i = spec->freq;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	195 if (alSetParams(AL_DEFAULT_OUTPUT, &audio_param, 1) < 0) {
903 6e6248801043 Date: Sun, 18 Jul 2004 16:46:44 +0200 Sam Lantinga <slouken@libsdl.org> parents: 605 diff changeset	196 #endif
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	197 SDL_SetError("alSetParams failed");
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: 1402 diff changeset	198 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: 1402 diff changeset	199 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	200
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: 1402 diff changeset	201 /* Open the audio port with the requested frequency */
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: 1402 diff changeset	202 audio_port = NULL;
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	203 audio_config = alNewConfig();
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: 1402 diff changeset	204 if (audio_config &&
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	205 (alSetSampFmt(audio_config, AL_SAMPFMT_TWOSCOMP) >= 0) &&
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	206 (alSetWidth(audio_config, width) >= 0) &&
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	207 (alSetQueueSize(audio_config, spec->samples * 2) >= 0) &&
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	208 (alSetChannels(audio_config, spec->channels) >= 0)) {
4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	209 audio_port = alOpenPort("SDL audio", "w", audio_config);
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: 1402 diff changeset	210 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	211 alFreeConfig(audio_config);
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: 1402 diff changeset	212 if (audio_port == NULL) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	213 SDL_SetError("Unable to open audio port");
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: 1402 diff changeset	214 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: 1402 diff changeset	215 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	216
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: 1402 diff changeset	217 /* Allocate mixing buffer */
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	218 mixbuf = (Uint8 *) SDL_AllocAudioMem(spec->size);
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: 1402 diff changeset	219 if (mixbuf == NULL) {
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	220 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: 1402 diff changeset	221 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: 1402 diff changeset	222 }
1668 4da1ee79c9af more tweaking indent options Sam Lantinga <slouken@libsdl.org> parents: 1662 diff changeset	223 SDL_memset(mixbuf, spec->silence, spec->size);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	224
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: 1402 diff changeset	225 /* We're ready to rock and roll. :-) */
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: 1402 diff changeset	226 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	227 }
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: 1402 diff changeset	228
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: 1402 diff changeset	229 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/audio/dmedia/SDL_irixaudio.c @ 1675:d33dcfc3fde7 SDL-1.3