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

annotate src/audio/ums/SDL_umsaudio.c @ 3798:c8b3d3d13ed1 SDL-ryan-multiple-audio-device

Audio bootstraps can now specify that a driver is only to be used if explicitly requested (for things like the "disk" driver that is always available but you would never want to default to using). Trimmed out code that can be handled by stubs in the core. The "dummy" driver is pretty damned small now. :)

author	Ryan C. Gordon <icculus@icculus.org>
date	Wed, 04 Oct 2006 21:27:53 +0000
parents	4a32d186f35b
children	7852b5b78af5

rev	line source
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1 /*
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 0 diff changeset	2 SDL - Simple DirectMedia Layer
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 0 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: 0 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: 0 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: 0 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: 0 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: 0 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: 0 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 Carsten Griwodz
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	20 griff@kom.tu-darmstadt.de
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	21
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	22 based on linux/SDL_dspaudio.c by Sam Lantinga
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	23 */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	24 #include "SDL_config.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	25
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26 /* Allow access to a raw mixing buffer */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	27
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	28 #include <errno.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	29 #include <unistd.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	30 #include <fcntl.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	31 #include <sys/types.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	32 #include <sys/time.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	33 #include <sys/ioctl.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	34 #include <sys/stat.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	35 #include <sys/mman.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	36
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	37 #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	38 #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	39 #include "../SDL_audiodev_c.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	40 #include "SDL_umsaudio.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	41
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	42 /* The tag name used by UMS audio */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	43 #define UMS_DRIVER_NAME "ums"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	44
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	45 #define DEBUG_AUDIO 1
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 functions */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	48 static int UMS_OpenAudio(_THIS, SDL_AudioSpec * spec);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	49 static void UMS_PlayAudio(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	50 static Uint8 *UMS_GetAudioBuf(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	51 static void UMS_CloseAudio(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	52
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	53 static UMSAudioDevice_ReturnCode UADOpen(_THIS, string device, string mode,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	54 long flags);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	55 static UMSAudioDevice_ReturnCode UADClose(_THIS);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	56 static UMSAudioDevice_ReturnCode UADGetBitsPerSample(_THIS, long *bits);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	57 static UMSAudioDevice_ReturnCode UADSetBitsPerSample(_THIS, long bits);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	58 static UMSAudioDevice_ReturnCode UADSetSampleRate(_THIS, long rate,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	59 long *set_rate);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	60 static UMSAudioDevice_ReturnCode UADSetByteOrder(_THIS, string byte_order);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	61 static UMSAudioDevice_ReturnCode UADSetAudioFormatType(_THIS, string fmt);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	62 static UMSAudioDevice_ReturnCode UADSetNumberFormat(_THIS, string fmt);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	63 static UMSAudioDevice_ReturnCode UADInitialize(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	64 static UMSAudioDevice_ReturnCode UADStart(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	65 static UMSAudioDevice_ReturnCode UADStop(_THIS);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	66 static UMSAudioDevice_ReturnCode UADSetTimeFormat(_THIS,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	67 UMSAudioTypes_TimeFormat
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	68 fmt);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	69 static UMSAudioDevice_ReturnCode UADWriteBuffSize(_THIS, long *buff_size);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	70 static UMSAudioDevice_ReturnCode UADWriteBuffRemain(_THIS, long *buff_size);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	71 static UMSAudioDevice_ReturnCode UADWriteBuffUsed(_THIS, long *buff_size);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	72 static UMSAudioDevice_ReturnCode UADSetDMABufferSize(_THIS, long bytes,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	73 long *bytes_ret);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	74 static UMSAudioDevice_ReturnCode UADSetVolume(_THIS, long volume);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	75 static UMSAudioDevice_ReturnCode UADSetBalance(_THIS, long balance);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	76 static UMSAudioDevice_ReturnCode UADSetChannels(_THIS, long channels);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	77 static UMSAudioDevice_ReturnCode UADPlayRemainingData(_THIS, boolean block);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	78 static UMSAudioDevice_ReturnCode UADEnableOutput(_THIS, string output,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	79 long *left_gain,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	80 long *right_gain);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	81 static UMSAudioDevice_ReturnCode UADWrite(_THIS, UMSAudioTypes_Buffer * buff,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	82 long samples,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	83 long *samples_written);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	84
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	85 /* Audio driver bootstrap functions */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	86 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	87 Audio_Available(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	88 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	89 return 1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	90 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	91
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	92 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	93 Audio_DeleteDevice(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	94 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	95 if (this->hidden->playbuf._buffer)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	96 SDL_free(this->hidden->playbuf._buffer);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	97 if (this->hidden->fillbuf._buffer)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	98 SDL_free(this->hidden->fillbuf._buffer);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	99 _somFree(this->hidden->umsdev);
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	100 SDL_free(this->hidden);
3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	101 SDL_free(this);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	102 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	103
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	104 static SDL_AudioDevice *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	105 Audio_CreateDevice(int devindex)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	106 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	107 SDL_AudioDevice *this;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	108
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	109 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	110 * Allocate and initialize management storage and private management
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	111 * storage for this SDL-using library.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	112 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	113 this = (SDL_AudioDevice *) SDL_malloc(sizeof(SDL_AudioDevice));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	114 if (this) {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	115 SDL_memset(this, 0, (sizeof *this));
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	116 this->hidden = (struct SDL_PrivateAudioData *)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	117 SDL_malloc((sizeof *this->hidden));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	118 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	119 if ((this == NULL) \|\| (this->hidden == NULL)) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	120 SDL_OutOfMemory();
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	121 if (this) {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	122 SDL_free(this);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	123 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	124 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	125 }
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	126 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	127 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	128 fprintf(stderr, "Creating UMS Audio device\n");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	129 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	130
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	131 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	132 * Calls for UMS env initialization and audio object construction.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	133 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	134 this->hidden->ev = somGetGlobalEnvironment();
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	135 this->hidden->umsdev = UMSAudioDeviceNew();
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	136
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	137 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	138 * Set the function pointers.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	139 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	140 this->OpenAudio = UMS_OpenAudio;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	141 this->WaitAudio = NULL; /* we do blocking output */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	142 this->PlayAudio = UMS_PlayAudio;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	143 this->GetAudioBuf = UMS_GetAudioBuf;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	144 this->CloseAudio = UMS_CloseAudio;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	145 this->free = Audio_DeleteDevice;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	146
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	147 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	148 fprintf(stderr, "done\n");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	149 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	150 return this;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	151 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	152
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	153 AudioBootStrap UMS_bootstrap = {
2041 4a32d186f35b Fixed bug #316 Sam Lantinga <slouken@libsdl.org> parents: 1982 diff changeset	154 UMS_DRIVER_NAME, "AIX UMS audio",
3798 c8b3d3d13ed1 Audio bootstraps can now specify that a driver is only to be used if Ryan C. Gordon <icculus@icculus.org> parents: 2041 diff changeset	155 Audio_Available, Audio_CreateDevice, 0
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	156 };
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	157
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	158 static Uint8 *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	159 UMS_GetAudioBuf(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	160 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	161 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	162 fprintf(stderr, "enter UMS_GetAudioBuf\n");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	163 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	164 return this->hidden->fillbuf._buffer;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	165 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	166 long bufSize;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	167 UMSAudioDevice_ReturnCode rc;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	168
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	169 rc = UADSetTimeFormat(this, UMSAudioTypes_Bytes );
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	170 rc = UADWriteBuffSize(this, bufSize );
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	171 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	172 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	173
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	174 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	175 UMS_CloseAudio(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	176 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	177 UMSAudioDevice_ReturnCode rc;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	178
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	179 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	180 fprintf(stderr, "enter UMS_CloseAudio\n");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	181 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	182 rc = UADPlayRemainingData(this, TRUE);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	183 rc = UADStop(this);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	184 rc = UADClose(this);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	185 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	186
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	187 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	188 UMS_PlayAudio(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	189 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	190 UMSAudioDevice_ReturnCode rc;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	191 long samplesToWrite;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	192 long samplesWritten;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	193 UMSAudioTypes_Buffer swpbuf;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	194
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	195 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	196 fprintf(stderr, "enter UMS_PlayAudio\n");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	197 #endif
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	198 samplesToWrite =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	199 this->hidden->playbuf._length / this->hidden->bytesPerSample;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	200 do {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	201 rc = UADWrite(this, &this->hidden->playbuf,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	202 samplesToWrite, &samplesWritten);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	203 samplesToWrite -= samplesWritten;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	204
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	205 /* rc values: UMSAudioDevice_Success
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	206 * UMSAudioDevice_Failure
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	207 * UMSAudioDevice_Preempted
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	208 * UMSAudioDevice_Interrupted
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	209 * UMSAudioDevice_DeviceError
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	210 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	211 if (rc == UMSAudioDevice_DeviceError) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	212 #ifdef DEBUG_AUDIO
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	213 fprintf(stderr, "Returning from PlayAudio with devices error\n");
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	214 #endif
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	215 return;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	216 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	217 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	218 while (samplesToWrite > 0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	219
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	220 SDL_LockAudio();
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	221 SDL_memcpy(&swpbuf, &this->hidden->playbuf, sizeof(UMSAudioTypes_Buffer));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	222 SDL_memcpy(&this->hidden->playbuf, &this->hidden->fillbuf,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	223 sizeof(UMSAudioTypes_Buffer));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	224 SDL_memcpy(&this->hidden->fillbuf, &swpbuf, sizeof(UMSAudioTypes_Buffer));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	225 SDL_UnlockAudio();
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	226
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	227 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	228 fprintf(stderr, "Wrote audio data and swapped buffer\n");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	229 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	230 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	231
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	232 #if 0
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	233 // /* Set the DSP frequency */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	234 // value = spec->freq;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	235 // if ( ioctl(this->hidden->audio_fd, SOUND_PCM_WRITE_RATE, &value) < 0 ) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	236 // SDL_SetError("Couldn't set audio frequency");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	237 // return(-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	238 // }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	239 // spec->freq = value;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	240 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	241
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	242 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	243 UMS_OpenAudio(_THIS, SDL_AudioSpec * spec)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	244 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	245 char *audiodev = "/dev/paud0";
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	246 long lgain;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	247 long rgain;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	248 long outRate;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	249 long outBufSize;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	250 long bitsPerSample;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	251 long samplesPerSec;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	252 long success;
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	253 SDL_AudioFormat test_format;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	254 int frag_spec;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	255 UMSAudioDevice_ReturnCode rc;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	256
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	257 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	258 fprintf(stderr, "enter UMS_OpenAudio\n");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	259 #endif
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	260 rc = UADOpen(this, audiodev, "PLAY", UMSAudioDevice_BlockingIO);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	261 if (rc != UMSAudioDevice_Success) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	262 SDL_SetError("Couldn't open %s: %s", audiodev, strerror(errno));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	263 return -1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	264 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	265
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	266 rc = UADSetAudioFormatType(this, "PCM");
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	267
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	268 success = 0;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	269 test_format = SDL_FirstAudioFormat(spec->format);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	270 do {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	271 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	272 fprintf(stderr, "Trying format 0x%4.4x\n", test_format);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	273 #endif
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	274 switch (test_format) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	275 case AUDIO_U8:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	276 /* from the mac code: better ? */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	277 /* sample_bits = spec->size / spec->samples / spec->channels * 8; */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	278 success = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	279 bitsPerSample = 8;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	280 rc = UADSetSampleRate(this, spec->freq << 16, &outRate);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	281 rc = UADSetByteOrder(this, "MSB"); /* irrelevant */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	282 rc = UADSetNumberFormat(this, "UNSIGNED");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	283 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	284 case AUDIO_S8:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	285 success = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	286 bitsPerSample = 8;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	287 rc = UADSetSampleRate(this, spec->freq << 16, &outRate);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	288 rc = UADSetByteOrder(this, "MSB"); /* irrelevant */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	289 rc = UADSetNumberFormat(this, "SIGNED");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	290 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	291 case AUDIO_S16LSB:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	292 success = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	293 bitsPerSample = 16;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	294 rc = UADSetSampleRate(this, spec->freq << 16, &outRate);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	295 rc = UADSetByteOrder(this, "LSB");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	296 rc = UADSetNumberFormat(this, "SIGNED");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	297 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	298 case AUDIO_S16MSB:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	299 success = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	300 bitsPerSample = 16;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	301 rc = UADSetSampleRate(this, spec->freq << 16, &outRate);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	302 rc = UADSetByteOrder(this, "MSB");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	303 rc = UADSetNumberFormat(this, "SIGNED");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	304 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	305 case AUDIO_U16LSB:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	306 success = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	307 bitsPerSample = 16;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	308 rc = UADSetSampleRate(this, spec->freq << 16, &outRate);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	309 rc = UADSetByteOrder(this, "LSB");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	310 rc = UADSetNumberFormat(this, "UNSIGNED");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	311 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	312 case AUDIO_U16MSB:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	313 success = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	314 bitsPerSample = 16;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	315 rc = UADSetSampleRate(this, spec->freq << 16, &outRate);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	316 rc = UADSetByteOrder(this, "MSB");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	317 rc = UADSetNumberFormat(this, "UNSIGNED");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	318 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	319 default:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	320 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	321 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	322 if (!success) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	323 test_format = SDL_NextAudioFormat();
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	324 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	325 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	326 while (!success && test_format);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	327
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	328 if (success == 0) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	329 SDL_SetError("Couldn't find any hardware audio formats");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	330 return -1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	331 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	332
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	333 spec->format = test_format;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	334
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	335 for (frag_spec = 0; (0x01 << frag_spec) < spec->size; ++frag_spec);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	336 if ((0x01 << frag_spec) != spec->size) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	337 SDL_SetError("Fragment size must be a power of two");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	338 return -1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	339 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	340 if (frag_spec > 2048)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	341 frag_spec = 2048;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	342
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	343 this->hidden->bytesPerSample = (bitsPerSample / 8) * spec->channels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	344 samplesPerSec = this->hidden->bytesPerSample * outRate;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	345
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	346 this->hidden->playbuf._length = 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	347 this->hidden->playbuf._maximum = spec->size;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	348 this->hidden->playbuf._buffer = (unsigned char *) SDL_malloc(spec->size);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	349 this->hidden->fillbuf._length = 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	350 this->hidden->fillbuf._maximum = spec->size;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	351 this->hidden->fillbuf._buffer = (unsigned char *) SDL_malloc(spec->size);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	352
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	353 rc = UADSetBitsPerSample(this, bitsPerSample);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	354 rc = UADSetDMABufferSize(this, frag_spec, &outBufSize);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	355 rc = UADSetChannels(this, spec->channels); /* functions reduces to mono or stereo */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	356
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	357 lgain = 100; /maximum left input gain /
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	358 rgain = 100; /maimum right input gain /
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	359 rc = UADEnableOutput(this, "LINE_OUT", &lgain, &rgain);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	360 rc = UADInitialize(this);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	361 rc = UADStart(this);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	362 rc = UADSetVolume(this, 100);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	363 rc = UADSetBalance(this, 0);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	364
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	365 /* We're ready to rock and roll. :-) */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	366 return 0;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	367 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	368
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	369
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	370 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	371 UADGetBitsPerSample(_THIS, long *bits)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	372 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	373 return UMSAudioDevice_get_bits_per_sample(this->hidden->umsdev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	374 this->hidden->ev, bits);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	375 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	376
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	377 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	378 UADSetBitsPerSample(_THIS, long bits)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	379 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	380 return UMSAudioDevice_set_bits_per_sample(this->hidden->umsdev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	381 this->hidden->ev, bits);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	382 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	383
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	384 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	385 UADSetSampleRate(_THIS, long rate, long *set_rate)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	386 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	387 /* from the mac code: sample rate = spec->freq << 16; */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	388 return UMSAudioDevice_set_sample_rate(this->hidden->umsdev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	389 this->hidden->ev, rate, set_rate);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	390 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	391
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	392 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	393 UADSetByteOrder(_THIS, string byte_order)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	394 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	395 return UMSAudioDevice_set_byte_order(this->hidden->umsdev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	396 this->hidden->ev, byte_order);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	397 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	398
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	399 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	400 UADSetAudioFormatType(_THIS, string fmt)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	401 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	402 /* possible PCM, A_LAW or MU_LAW */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	403 return UMSAudioDevice_set_audio_format_type(this->hidden->umsdev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	404 this->hidden->ev, fmt);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	405 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	406
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	407 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	408 UADSetNumberFormat(_THIS, string fmt)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	409 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	410 /* possible SIGNED, UNSIGNED, or TWOS_COMPLEMENT */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	411 return UMSAudioDevice_set_number_format(this->hidden->umsdev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	412 this->hidden->ev, fmt);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	413 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	414
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	415 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	416 UADInitialize(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	417 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	418 return UMSAudioDevice_initialize(this->hidden->umsdev, this->hidden->ev);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	419 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	420
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	421 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	422 UADStart(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	423 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	424 return UMSAudioDevice_start(this->hidden->umsdev, this->hidden->ev);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	425 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	426
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	427 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	428 UADSetTimeFormat(_THIS, UMSAudioTypes_TimeFormat fmt)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	429 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	430 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	431 * Switches the time format to the new format, immediately.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	432 * possible UMSAudioTypes_Msecs, UMSAudioTypes_Bytes or UMSAudioTypes_Samples
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	433 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	434 return UMSAudioDevice_set_time_format(this->hidden->umsdev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	435 this->hidden->ev, fmt);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	436 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	437
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	438 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	439 UADWriteBuffSize(_THIS, long *buff_size)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	440 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	441 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	442 * returns write buffer size in the current time format
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	443 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	444 return UMSAudioDevice_write_buff_size(this->hidden->umsdev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	445 this->hidden->ev, buff_size);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	446 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	447
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	448 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	449 UADWriteBuffRemain(_THIS, long *buff_size)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	450 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	451 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	452 * returns amount of available space in the write buffer
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	453 * in the current time format
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	454 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	455 return UMSAudioDevice_write_buff_remain(this->hidden->umsdev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	456 this->hidden->ev, buff_size);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	457 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	458
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	459 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	460 UADWriteBuffUsed(_THIS, long *buff_size)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	461 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	462 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	463 * returns amount of filled space in the write buffer
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	464 * in the current time format
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	465 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	466 return UMSAudioDevice_write_buff_used(this->hidden->umsdev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	467 this->hidden->ev, buff_size);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	468 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	469
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	470 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	471 UADSetDMABufferSize(_THIS, long bytes, long *bytes_ret)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	472 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	473 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	474 * Request a new DMA buffer size, maximum requested size 2048.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	475 * Takes effect with next initialize() call.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	476 * Devices may or may not support DMA.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	477 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	478 return UMSAudioDevice_set_DMA_buffer_size(this->hidden->umsdev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	479 this->hidden->ev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	480 bytes, bytes_ret);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	481 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	482
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	483 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	484 UADSetVolume(_THIS, long volume)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	485 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	486 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	487 * Set the volume.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	488 * Takes effect immediately.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	489 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	490 return UMSAudioDevice_set_volume(this->hidden->umsdev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	491 this->hidden->ev, volume);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	492 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	493
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	494 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	495 UADSetBalance(_THIS, long balance)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	496 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	497 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	498 * Set the balance.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	499 * Takes effect immediately.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	500 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	501 return UMSAudioDevice_set_balance(this->hidden->umsdev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	502 this->hidden->ev, balance);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	503 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	504
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	505 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	506 UADSetChannels(_THIS, long channels)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	507 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	508 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	509 * Set mono or stereo.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	510 * Takes effect with next initialize() call.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	511 */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	512 if (channels != 1)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	513 channels = 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	514 return UMSAudioDevice_set_number_of_channels(this->hidden->umsdev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	515 this->hidden->ev, channels);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	516 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	517
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	518 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	519 UADOpen(_THIS, string device, string mode, long flags)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	520 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	521 return UMSAudioDevice_open(this->hidden->umsdev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	522 this->hidden->ev, device, mode, flags);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	523 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	524
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	525 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	526 UADWrite(_THIS, UMSAudioTypes_Buffer * buff,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	527 long samples, long *samples_written)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	528 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	529 return UMSAudioDevice_write(this->hidden->umsdev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	530 this->hidden->ev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	531 buff, samples, samples_written);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	532 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	533
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	534 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	535 UADPlayRemainingData(_THIS, boolean block)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	536 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	537 return UMSAudioDevice_play_remaining_data(this->hidden->umsdev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	538 this->hidden->ev, block);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	539 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	540
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	541 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	542 UADStop(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	543 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	544 return UMSAudioDevice_stop(this->hidden->umsdev, this->hidden->ev);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	545 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	546
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	547 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	548 UADClose(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	549 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	550 return UMSAudioDevice_close(this->hidden->umsdev, this->hidden->ev);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	551 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	552
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	553 static UMSAudioDevice_ReturnCode
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	554 UADEnableOutput(_THIS, string output, long left_gain, long right_gain)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	555 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	556 return UMSAudioDevice_enable_output(this->hidden->umsdev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	557 this->hidden->ev,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	558 output, left_gain, right_gain);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	559 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	560
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	561 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/audio/ums/SDL_umsaudio.c @ 3798:c8b3d3d13ed1 SDL-ryan-multiple-audio-device