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

annotate src/audio/ums/SDL_umsaudio.c @ 2207:d63e9f5944ae

Unpacked project archives to get individual file history in subversion

author	Sam Lantinga <slouken@libsdl.org>
date	Sat, 21 Jul 2007 17:09:01 +0000
parents	5f6550e5184f
children	e27bdcc80744

rev	line source
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2041 diff changeset	1 /* I'm gambling no one uses this audio backend...we'll see who emails. :) */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2041 diff changeset	2 #error this code has not been updated for SDL 1.3.
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2041 diff changeset	3 #error if no one emails icculus at icculus.org and tells him that this
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2041 diff changeset	4 #error code is needed, this audio backend will eventually be removed from SDL.
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2041 diff changeset	5
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	6 /*
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 0 diff changeset	7 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	8 Copyright (C) 1997-2006 Sam Lantinga
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 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	11 modify it under the terms of the GNU Lesser General Public
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	12 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	13 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	14
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	15 This library is distributed in the hope that it will be useful,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	16 but WITHOUT ANY WARRANTY; without even the implied warranty of
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	17 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	18 Lesser General Public License for more details.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	19
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 0 diff changeset	20 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	21 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	22 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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 Carsten Griwodz
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	25 griff@kom.tu-darmstadt.de
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	27 based on linux/SDL_dspaudio.c by Sam Lantinga
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	28 */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	29 #include "SDL_config.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	30
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	31 /* Allow access to a raw mixing buffer */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	32
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	33 #include <errno.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	34 #include <unistd.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	35 #include <fcntl.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	36 #include <sys/types.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	37 #include <sys/time.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	38 #include <sys/ioctl.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	39 #include <sys/stat.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	40 #include <sys/mman.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 #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	43 #include "../SDL_audio_c.h"
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	44 #include "SDL_umsaudio.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	45
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	46 /* The tag name used by UMS audio */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	47 #define UMS_DRIVER_NAME "ums"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	48
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	49 #define DEBUG_AUDIO 1
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	50
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	51 /* 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	52 static int UMS_OpenAudio(_THIS, SDL_AudioSpec * spec);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	53 static void UMS_PlayAudio(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	54 static Uint8 *UMS_GetAudioBuf(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	55 static void UMS_CloseAudio(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	56
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	57 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	58 long flags);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	59 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	60 static UMSAudioDevice_ReturnCode UADGetBitsPerSample(_THIS, long *bits);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	61 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	62 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	63 long *set_rate);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	64 static UMSAudioDevice_ReturnCode UADSetByteOrder(_THIS, string byte_order);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	65 static UMSAudioDevice_ReturnCode UADSetAudioFormatType(_THIS, string fmt);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	66 static UMSAudioDevice_ReturnCode UADSetNumberFormat(_THIS, string fmt);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	67 static UMSAudioDevice_ReturnCode UADInitialize(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	68 static UMSAudioDevice_ReturnCode UADStart(_THIS);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	69 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	70 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	71 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	72 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	73 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	74 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	75 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	76 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	77 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	78 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	79 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	80 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	81 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	82 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	83 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	84 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	85 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	86 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	87 long *samples_written);
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 /* 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	90 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	91 Audio_Available(void)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	92 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	93 return 1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	94 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	95
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	96 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	97 Audio_DeleteDevice(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	98 {
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	99 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	100 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	101 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	102 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	103 _somFree(this->hidden->umsdev);
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	104 SDL_free(this->hidden);
3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	105 SDL_free(this);
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
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	108 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	109 Audio_CreateDevice(int devindex)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	110 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	111 SDL_AudioDevice *this;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	112
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	113 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	114 * Allocate and initialize management storage and private management
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	115 * storage for this SDL-using library.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	116 */
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	117 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	118 if (this) {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	119 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	120 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	121 SDL_malloc((sizeof *this->hidden));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	122 }
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	123 if ((this == NULL) \|\| (this->hidden == NULL)) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	124 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	125 if (this) {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	126 SDL_free(this);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	127 }
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	128 return (0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	129 }
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1312 diff changeset	130 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	131 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	132 fprintf(stderr, "Creating UMS Audio device\n");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	133 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	134
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	135 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	136 * Calls for UMS env initialization and audio object construction.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	137 */
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	138 this->hidden->ev = somGetGlobalEnvironment();
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	139 this->hidden->umsdev = UMSAudioDeviceNew();
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	140
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	141 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	142 * Set the function pointers.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	143 */
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->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	145 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	146 this->PlayAudio = UMS_PlayAudio;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	147 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	148 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	149 this->free = Audio_DeleteDevice;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	150
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	151 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	152 fprintf(stderr, "done\n");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	153 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	154 return this;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	155 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	156
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	157 AudioBootStrap UMS_bootstrap = {
2041 4a32d186f35b Fixed bug #316 Sam Lantinga <slouken@libsdl.org> parents: 1982 diff changeset	158 UMS_DRIVER_NAME, "AIX UMS audio",
2049 5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk. Ryan C. Gordon <icculus@icculus.org> parents: 2041 diff changeset	159 Audio_Available, Audio_CreateDevice, 0
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
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	162 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	163 UMS_GetAudioBuf(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	164 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	165 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	166 fprintf(stderr, "enter UMS_GetAudioBuf\n");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	167 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	168 return this->hidden->fillbuf._buffer;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	169 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	170 long bufSize;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	171 UMSAudioDevice_ReturnCode rc;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	172
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	173 rc = UADSetTimeFormat(this, UMSAudioTypes_Bytes );
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	174 rc = UADWriteBuffSize(this, bufSize );
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	175 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	176 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	177
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	178 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	179 UMS_CloseAudio(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	180 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	181 UMSAudioDevice_ReturnCode rc;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	182
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	183 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	184 fprintf(stderr, "enter UMS_CloseAudio\n");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	185 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	186 rc = UADPlayRemainingData(this, TRUE);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	187 rc = UADStop(this);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	188 rc = UADClose(this);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	189 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	190
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 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	192 UMS_PlayAudio(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	193 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	194 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	195 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	196 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	197 UMSAudioTypes_Buffer swpbuf;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	198
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	199 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	200 fprintf(stderr, "enter UMS_PlayAudio\n");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	201 #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	202 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	203 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	204 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	205 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	206 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	207 samplesToWrite -= samplesWritten;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	208
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	209 /* 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	210 * 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	211 * 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	212 * 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	213 * 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	214 */
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 if (rc == UMSAudioDevice_DeviceError) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	216 #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	217 fprintf(stderr, "Returning from PlayAudio with devices error\n");
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	218 #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	219 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	220 }
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	221 }
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	222 while (samplesToWrite > 0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	223
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	224 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	225 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	226 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	227 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	228 SDL_memcpy(&this->hidden->fillbuf, &swpbuf, sizeof(UMSAudioTypes_Buffer));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	229 SDL_UnlockAudio();
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	230
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	231 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	232 fprintf(stderr, "Wrote audio data and swapped buffer\n");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	233 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	234 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	235
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	236 #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	237 // /* 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	238 // 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	239 // 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	240 // 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	241 // 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	242 // }
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 // spec->freq = value;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	244 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	245
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	246 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	247 UMS_OpenAudio(_THIS, SDL_AudioSpec * spec)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	248 {
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	249 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	250 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	251 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	252 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	253 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	254 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	255 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	256 long success;
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	257 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	258 int frag_spec;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	259 UMSAudioDevice_ReturnCode rc;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	260
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	261 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	262 fprintf(stderr, "enter UMS_OpenAudio\n");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	263 #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	264 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	265 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	266 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	267 return -1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	268 }
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	269
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 rc = UADSetAudioFormatType(this, "PCM");
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	271
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	272 success = 0;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	273 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	274 do {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	275 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	276 fprintf(stderr, "Trying format 0x%4.4x\n", test_format);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	277 #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	278 switch (test_format) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	279 case AUDIO_U8:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	280 /* from the mac code: better ? */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	281 /* 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	282 success = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	283 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	284 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	285 rc = UADSetByteOrder(this, "MSB"); /* irrelevant */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	286 rc = UADSetNumberFormat(this, "UNSIGNED");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	287 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	288 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	289 success = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	290 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	291 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	292 rc = UADSetByteOrder(this, "MSB"); /* irrelevant */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	293 rc = UADSetNumberFormat(this, "SIGNED");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	294 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	295 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	296 success = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	297 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	298 rc = UADSetSampleRate(this, spec->freq << 16, &outRate);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	299 rc = UADSetByteOrder(this, "LSB");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	300 rc = UADSetNumberFormat(this, "SIGNED");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	301 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	302 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	303 success = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	304 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	305 rc = UADSetSampleRate(this, spec->freq << 16, &outRate);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	306 rc = UADSetByteOrder(this, "MSB");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	307 rc = UADSetNumberFormat(this, "SIGNED");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	308 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	309 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	310 success = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	311 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	312 rc = UADSetSampleRate(this, spec->freq << 16, &outRate);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	313 rc = UADSetByteOrder(this, "LSB");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	314 rc = UADSetNumberFormat(this, "UNSIGNED");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	315 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	316 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	317 success = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	318 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	319 rc = UADSetSampleRate(this, spec->freq << 16, &outRate);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	320 rc = UADSetByteOrder(this, "MSB");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	321 rc = UADSetNumberFormat(this, "UNSIGNED");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	322 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	323 default:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	324 break;
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 if (!success) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	327 test_format = SDL_NextAudioFormat();
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	328 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	329 }
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	330 while (!success && test_format);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	331
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	332 if (success == 0) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	333 SDL_SetError("Couldn't find any hardware audio formats");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	334 return -1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	335 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	336
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	337 spec->format = test_format;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	338
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	339 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	340 if ((0x01 << frag_spec) != spec->size) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	341 SDL_SetError("Fragment size must be a power of two");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	342 return -1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	343 }
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	344 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	345 frag_spec = 2048;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	346
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	347 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	348 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	349
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	350 this->hidden->playbuf._length = 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	351 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	352 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	353 this->hidden->fillbuf._length = 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	354 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	355 this->hidden->fillbuf._buffer = (unsigned char *) SDL_malloc(spec->size);
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 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	358 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	359 rc = UADSetChannels(this, spec->channels); /* functions reduces to mono or stereo */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	360
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	361 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	362 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	363 rc = UADEnableOutput(this, "LINE_OUT", &lgain, &rgain);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	364 rc = UADInitialize(this);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	365 rc = UADStart(this);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	366 rc = UADSetVolume(this, 100);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	367 rc = UADSetBalance(this, 0);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	368
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	369 /* We're ready to rock and roll. :-) */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	370 return 0;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	371 }
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	372
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	373
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	374 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	375 UADGetBitsPerSample(_THIS, long *bits)
0 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 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	378 this->hidden->ev, bits);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	379 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	380
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	381 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	382 UADSetBitsPerSample(_THIS, long bits)
0 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 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	385 this->hidden->ev, bits);
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
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 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	389 UADSetSampleRate(_THIS, long rate, long *set_rate)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	390 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	391 /* 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	392 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	393 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	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
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 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	397 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	398 {
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 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	400 this->hidden->ev, byte_order);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	401 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	402
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	403 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	404 UADSetAudioFormatType(_THIS, string fmt)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	405 {
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	406 /* 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	407 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	408 this->hidden->ev, 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
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 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	412 UADSetNumberFormat(_THIS, string 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 /* 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	415 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	416 this->hidden->ev, fmt);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	417 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	418
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	419 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	420 UADInitialize(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	421 {
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	422 return UMSAudioDevice_initialize(this->hidden->umsdev, this->hidden->ev);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	423 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	424
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	425 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	426 UADStart(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	427 {
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	428 return UMSAudioDevice_start(this->hidden->umsdev, this->hidden->ev);
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
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	431 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	432 UADSetTimeFormat(_THIS, UMSAudioTypes_TimeFormat fmt)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	433 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	434 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	435 * Switches the time format to the new format, immediately.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	436 * possible UMSAudioTypes_Msecs, UMSAudioTypes_Bytes or UMSAudioTypes_Samples
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 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	439 this->hidden->ev, fmt);
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
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	442 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	443 UADWriteBuffSize(_THIS, long *buff_size)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	444 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	445 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	446 * returns write buffer size in the current time format
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 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	449 this->hidden->ev, 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
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	452 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	453 UADWriteBuffRemain(_THIS, long *buff_size)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	454 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	455 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	456 * returns amount of available space in the write buffer
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	457 * in the current time format
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 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	460 this->hidden->ev, 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
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	463 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	464 UADWriteBuffUsed(_THIS, long *buff_size)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	465 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	466 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	467 * returns amount of filled space in the write buffer
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	468 * in the current time format
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 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	471 this->hidden->ev, buff_size);
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
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	474 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	475 UADSetDMABufferSize(_THIS, long bytes, long *bytes_ret)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	476 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	477 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	478 * Request a new DMA buffer size, maximum requested size 2048.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	479 * Takes effect with next initialize() call.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	480 * Devices may or may not support DMA.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	481 */
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	482 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	483 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	484 bytes, bytes_ret);
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
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	487 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	488 UADSetVolume(_THIS, long volume)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	489 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	490 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	491 * Set the volume.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	492 * Takes effect immediately.
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 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	495 this->hidden->ev, volume);
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
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	498 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	499 UADSetBalance(_THIS, long balance)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	500 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	501 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	502 * Set the balance.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	503 * Takes effect immediately.
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 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	506 this->hidden->ev, balance);
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
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	509 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	510 UADSetChannels(_THIS, long channels)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	511 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	512 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	513 * Set mono or stereo.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	514 * Takes effect with next initialize() call.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	515 */
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	516 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	517 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	518 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	519 this->hidden->ev, channels);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	520 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	521
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	522 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	523 UADOpen(_THIS, string device, string mode, long flags)
0 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 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	526 this->hidden->ev, device, mode, flags);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	527 }
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 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	530 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	531 long samples, long *samples_written)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	532 {
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	533 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	534 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	535 buff, samples, samples_written);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	536 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	537
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	538 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	539 UADPlayRemainingData(_THIS, boolean block)
0 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 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	542 this->hidden->ev, block);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	543 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	544
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	545 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	546 UADStop(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	547 {
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	548 return UMSAudioDevice_stop(this->hidden->umsdev, this->hidden->ev);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	549 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	550
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	551 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	552 UADClose(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	553 {
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	554 return UMSAudioDevice_close(this->hidden->umsdev, this->hidden->ev);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	555 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	556
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	557 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	558 UADEnableOutput(_THIS, string output, long left_gain, long right_gain)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	559 {
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	560 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	561 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	562 output, left_gain, right_gain);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	563 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	564
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	565 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/audio/ums/SDL_umsaudio.c @ 2207:d63e9f5944ae