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

annotate src/audio/ums/SDL_umsaudio.c @ 3542:97eae5a705f9

Make sure we fully clip the first point before starting to adjust the second point.

author	Sam Lantinga <slouken@libsdl.org>
date	Fri, 11 Dec 2009 09:57:54 +0000
parents	99210400e8b9
children	f7b03b6838cb

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
2859 99210400e8b9 Updated copyright date Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	8 Copyright (C) 1997-2009 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 }
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	221 } while (samplesToWrite > 0);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	222
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	223 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	224 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	225 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	226 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	227 SDL_memcpy(&this->hidden->fillbuf, &swpbuf, sizeof(UMSAudioTypes_Buffer));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	228 SDL_UnlockAudio();
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	229
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	230 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	231 fprintf(stderr, "Wrote audio data and swapped buffer\n");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	232 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	233 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	234
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	235 #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	236 // /* 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	237 // 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	238 // 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	239 // 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	240 // 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	241 // }
c121d94672cb SDL 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 // spec->freq = value;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	243 #endif
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 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	246 UMS_OpenAudio(_THIS, SDL_AudioSpec * spec)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	247 {
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	248 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	249 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	250 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	251 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	252 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	253 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	254 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	255 long success;
1982 3b4ce57c6215 First shot at new audio data types (int32 and float32). Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	256 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	257 int frag_spec;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	258 UMSAudioDevice_ReturnCode rc;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	259
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	260 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	261 fprintf(stderr, "enter UMS_OpenAudio\n");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	262 #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	263 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	264 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	265 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	266 return -1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	267 }
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	268
c121d94672cb SDL 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 rc = UADSetAudioFormatType(this, "PCM");
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	270
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	271 success = 0;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	272 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	273 do {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	274 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	275 fprintf(stderr, "Trying format 0x%4.4x\n", test_format);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	276 #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	277 switch (test_format) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	278 case AUDIO_U8:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	279 /* from the mac code: better ? */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	280 /* 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	281 success = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	282 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	283 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	284 rc = UADSetByteOrder(this, "MSB"); /* irrelevant */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	285 rc = UADSetNumberFormat(this, "UNSIGNED");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	286 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	287 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	288 success = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	289 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	290 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	291 rc = UADSetByteOrder(this, "MSB"); /* irrelevant */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	292 rc = UADSetNumberFormat(this, "SIGNED");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	293 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	294 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	295 success = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	296 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	297 rc = UADSetSampleRate(this, spec->freq << 16, &outRate);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	298 rc = UADSetByteOrder(this, "LSB");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	299 rc = UADSetNumberFormat(this, "SIGNED");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	300 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	301 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	302 success = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	303 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	304 rc = UADSetSampleRate(this, spec->freq << 16, &outRate);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	305 rc = UADSetByteOrder(this, "MSB");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	306 rc = UADSetNumberFormat(this, "SIGNED");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	307 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	308 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	309 success = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	310 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	311 rc = UADSetSampleRate(this, spec->freq << 16, &outRate);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	312 rc = UADSetByteOrder(this, "LSB");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	313 rc = UADSetNumberFormat(this, "UNSIGNED");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	314 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	315 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	316 success = 1;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	317 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	318 rc = UADSetSampleRate(this, spec->freq << 16, &outRate);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	319 rc = UADSetByteOrder(this, "MSB");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	320 rc = UADSetNumberFormat(this, "UNSIGNED");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	321 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	322 default:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	323 break;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	324 }
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	325 if (!success) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	326 test_format = SDL_NextAudioFormat();
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	327 }
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2049 diff changeset	328 } while (!success && test_format);
0 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 if (success == 0) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	331 SDL_SetError("Couldn't find any hardware audio formats");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	332 return -1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	333 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	334
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	335 spec->format = test_format;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	336
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	337 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	338 if ((0x01 << frag_spec) != spec->size) {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	339 SDL_SetError("Fragment size must be a power of two");
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	340 return -1;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	341 }
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	342 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	343 frag_spec = 2048;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	344
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	345 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	346 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	347
c121d94672cb SDL 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._length = 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	349 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	350 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	351 this->hidden->fillbuf._length = 0;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	352 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	353 this->hidden->fillbuf._buffer = (unsigned char *) SDL_malloc(spec->size);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	354
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 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	356 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	357 rc = UADSetChannels(this, spec->channels); /* functions reduces to mono or stereo */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	358
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	359 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	360 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	361 rc = UADEnableOutput(this, "LINE_OUT", &lgain, &rgain);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	362 rc = UADInitialize(this);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	363 rc = UADStart(this);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	364 rc = UADSetVolume(this, 100);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	365 rc = UADSetBalance(this, 0);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	366
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	367 /* We're ready to rock and roll. :-) */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	368 return 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
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 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	373 UADGetBitsPerSample(_THIS, long *bits)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	374 {
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	375 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	376 this->hidden->ev, bits);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	377 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	378
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	379 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	380 UADSetBitsPerSample(_THIS, long bits)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	381 {
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	382 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	383 this->hidden->ev, bits);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	384 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	385
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	386 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	387 UADSetSampleRate(_THIS, long rate, long *set_rate)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	388 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	389 /* 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	390 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	391 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	392 }
c121d94672cb SDL 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
c121d94672cb SDL 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 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	395 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	396 {
c121d94672cb SDL 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 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	398 this->hidden->ev, byte_order);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	399 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	400
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	401 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	402 UADSetAudioFormatType(_THIS, string fmt)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	403 {
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	404 /* 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	405 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	406 this->hidden->ev, fmt);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	407 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	408
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	409 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	410 UADSetNumberFormat(_THIS, string fmt)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	411 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	412 /* 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	413 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	414 this->hidden->ev, fmt);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	415 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	416
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	417 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	418 UADInitialize(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	419 {
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	420 return UMSAudioDevice_initialize(this->hidden->umsdev, this->hidden->ev);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	421 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	422
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	423 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	424 UADStart(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	425 {
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	426 return UMSAudioDevice_start(this->hidden->umsdev, this->hidden->ev);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	427 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	428
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	429 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	430 UADSetTimeFormat(_THIS, UMSAudioTypes_TimeFormat fmt)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	431 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	432 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	433 * Switches the time format to the new format, immediately.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	434 * possible UMSAudioTypes_Msecs, UMSAudioTypes_Bytes or UMSAudioTypes_Samples
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	435 */
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	436 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	437 this->hidden->ev, fmt);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	438 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	439
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	440 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	441 UADWriteBuffSize(_THIS, long *buff_size)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	442 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	443 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	444 * returns write buffer size in the current time format
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	445 */
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	446 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	447 this->hidden->ev, buff_size);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	448 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	449
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	450 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	451 UADWriteBuffRemain(_THIS, long *buff_size)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	452 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	453 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	454 * returns amount of available space in the write buffer
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	455 * in the current time format
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	456 */
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	457 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	458 this->hidden->ev, buff_size);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	459 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	460
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	461 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	462 UADWriteBuffUsed(_THIS, long *buff_size)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	463 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	464 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	465 * returns amount of filled space in the write buffer
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	466 * in the current time format
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	467 */
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	468 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	469 this->hidden->ev, buff_size);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	470 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	471
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	472 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	473 UADSetDMABufferSize(_THIS, long bytes, long *bytes_ret)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	474 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	475 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	476 * Request a new DMA buffer size, maximum requested size 2048.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	477 * Takes effect with next initialize() call.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	478 * Devices may or may not support DMA.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	479 */
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	480 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	481 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	482 bytes, bytes_ret);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	483 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	484
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	485 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	486 UADSetVolume(_THIS, long volume)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	487 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	488 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	489 * Set the volume.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	490 * Takes effect immediately.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	491 */
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	492 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	493 this->hidden->ev, volume);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	494 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	495
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	496 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	497 UADSetBalance(_THIS, long balance)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	498 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	499 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	500 * Set the balance.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	501 * Takes effect immediately.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	502 */
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	503 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	504 this->hidden->ev, balance);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	505 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	506
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	507 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	508 UADSetChannels(_THIS, long channels)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	509 {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	510 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	511 * Set mono or stereo.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	512 * Takes effect with next initialize() call.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	513 */
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	514 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	515 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	516 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	517 this->hidden->ev, channels);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	518 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	519
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	520 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	521 UADOpen(_THIS, string device, string mode, long flags)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	522 {
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	523 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	524 this->hidden->ev, device, mode, flags);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	525 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	526
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	527 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	528 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	529 long samples, long *samples_written)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	530 {
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	531 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	532 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	533 buff, samples, samples_written);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	534 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	535
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	536 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	537 UADPlayRemainingData(_THIS, boolean block)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	538 {
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	539 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	540 this->hidden->ev, block);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	541 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	542
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	543 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	544 UADStop(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	545 {
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	546 return UMSAudioDevice_stop(this->hidden->umsdev, this->hidden->ev);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	547 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	548
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	549 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	550 UADClose(_THIS)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	551 {
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	552 return UMSAudioDevice_close(this->hidden->umsdev, this->hidden->ev);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	553 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	554
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	555 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	556 UADEnableOutput(_THIS, string output, long left_gain, long right_gain)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	557 {
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	558 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	559 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	560 output, left_gain, right_gain);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	561 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	562
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	563 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/audio/ums/SDL_umsaudio.c @ 3542:97eae5a705f9