Mercurial > sdl-ios-xcode

annotate include/SDL_audio.h @ 1970:db3ba6c0d0df

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Allow the render context to do necessary work when the video mode changes.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 06 Aug 2006 04:39:13 +0000
parents 01e29c3e9a29
children ee73925ddf14
rev   line source
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 930
diff changeset
3 Copyright (C) 1997-2006 Sam Lantinga
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
4
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
5 This library is free software; you can redistribute it and/or
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 930
diff changeset
6 modify it under the terms of the GNU Lesser General Public
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 930
diff changeset
8 version 2.1 of the License, or (at your option) any later version.
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
9
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
10 This library is distributed in the hope that it will be useful,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 930
diff changeset
13 Lesser General Public License for more details.
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
14
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 930
diff changeset
15 You should have received a copy of the GNU Lesser General Public
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 930
diff changeset
16 License along with this library; if not, write to the Free Software
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 930
diff changeset
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
18
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
19 Sam Lantinga
251
b8688cfdc232 Updated the headers with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents: 188
diff changeset
20 slouken@libsdl.org
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
21 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
22
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
23 /**
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
24 * \file SDL_audio.h
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
25 *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
26 * Access to the raw audio mixing buffer for the SDL library
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
27 */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
28
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
29 #ifndef _SDL_audio_h
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
30 #define _SDL_audio_h
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
31
1353
7ba544e2888d Started the process of improving configure support, and merging C types
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
32 #include "SDL_stdinc.h"
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
33 #include "SDL_error.h"
1358
c71e05b4dc2e More header massaging... works great on Windows. ;-)
Sam Lantinga <slouken@libsdl.org>
parents: 1356
diff changeset
34 #include "SDL_endian.h"
c71e05b4dc2e More header massaging... works great on Windows. ;-)
Sam Lantinga <slouken@libsdl.org>
parents: 1356
diff changeset
35 #include "SDL_mutex.h"
c71e05b4dc2e More header massaging... works great on Windows. ;-)
Sam Lantinga <slouken@libsdl.org>
parents: 1356
diff changeset
36 #include "SDL_thread.h"
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
37 #include "SDL_rwops.h"
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
38
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
39 #include "begin_code.h"
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
40 /* Set up for C function definitions, even when using C++ */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
41 #ifdef __cplusplus
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
42 /* *INDENT-OFF* */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
43 extern "C" {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
44 /* *INDENT-ON* */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
45 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
46
1964
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
47 typedef Uint16 SDL_AudioFormat;
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
48
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
49 /* The calculated values in this structure are calculated by SDL_OpenAudio() */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
50 typedef struct SDL_AudioSpec
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
51 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
52 int freq; /* DSP frequency -- samples per second */
1964
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
53 SDL_AudioFormat format; /* Audio data 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: 1358
diff changeset
54 Uint8 channels; /* Number of channels: 1 mono, 2 stereo */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
55 Uint8 silence; /* Audio buffer silence value (calculated) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
56 Uint16 samples; /* Audio buffer size in samples (power of 2) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
57 Uint16 padding; /* Necessary for some compile environments */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
58 Uint32 size; /* Audio buffer size in bytes (calculated) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
59 /* This function is called when the audio device needs more data.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
60 'stream' is a pointer to the audio data buffer
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
61 'len' is the length of that buffer in bytes.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
62 Once the callback returns, the buffer will no longer be valid.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
63 Stereo samples are stored in a LRLRLR ordering.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
64 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
65 void (SDLCALL * callback) (void *userdata, Uint8 * stream, int len);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
66 void *userdata;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
67 } SDL_AudioSpec;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
68
1964
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
69
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
70 /*
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
71 These are what the 16 bits in SDL_AudioFormat currently mean...
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
72 (Unspecified bits are always zero.)
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
73
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
74 ++-----------------------sample is signed if set
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
75 ||
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
76 || ++-----------sample is bigendian if set
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
77 || ||
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
78 || || ++---sample is float if set
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
79 || || ||
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
80 || || || +---sample bit size---+
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
81 || || || | |
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
82 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
83
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
84 There are macros in SDL 1.3 and later to query these bits.
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
85 */
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
86
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
87 #define SDL_AUDIO_MASK_BITSIZE (0xFF)
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
88 #define SDL_AUDIO_MASK_DATATYPE (1<<8)
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
89 #define SDL_AUDIO_MASK_ENDIAN (1<<12)
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
90 #define SDL_AUDIO_MASK_SIGNED (1<<15)
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
91 #define SDL_AUDIO_BITSIZE(x) (x & SDL_AUDIO_MASK_BITSIZE)
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
92 #define SDL_AUDIO_ISFLOAT(x) (x & SDL_AUDIO_MASK_DATATYPE)
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
93 #define SDL_AUDIO_ISBIGENDIAN(x) (x & SDL_AUDIO_MASK_ENDIAN)
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
94 #define SDL_AUDIO_ISSIGNED(x) (x & SDL_AUDIO_MASK_SIGNED)
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
95 #define SDL_AUDIO_ISINT(x) (!SDL_AUDIO_ISFLOAT(x))
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
96 #define SDL_AUDIO_ISLITTLEENDIAN(x) (!SDL_AUDIO_ISBIGENDIAN(x))
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
97 #define SDL_AUDIO_ISUNSIGNED(x) (!SDL_AUDIO_ISSIGNED(x))
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
98
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
99 /* Audio format flags (defaults to LSB byte order) */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
100 #define AUDIO_U8 0x0008 /* Unsigned 8-bit samples */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
101 #define AUDIO_S8 0x8008 /* Signed 8-bit samples */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
102 #define AUDIO_U16LSB 0x0010 /* Unsigned 16-bit samples */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
103 #define AUDIO_S16LSB 0x8010 /* Signed 16-bit samples */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
104 #define AUDIO_U16MSB 0x1010 /* As above, but big-endian 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: 1358
diff changeset
105 #define AUDIO_S16MSB 0x9010 /* As above, but big-endian byte order */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
106 #define AUDIO_U16 AUDIO_U16LSB
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
107 #define AUDIO_S16 AUDIO_S16LSB
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
108
1964
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
109 /* int32 support new to SDL 1.3 */
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
110 #define AUDIO_S32LSB 0x8020 /* 32-bit integer samples */
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
111 #define AUDIO_S32MSB 0x9020 /* As above, but big-endian byte order */
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
112 #define AUDIO_S32 AUDIO_S32LSB
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
113 #define AUDIO_U32LSB 0x0020 /* Unsigned 32-bit integer samples */
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
114 #define AUDIO_U32MSB 0x1020 /* As above, but big-endian byte order */
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
115 #define AUDIO_U32 AUDIO_U32LSB
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
116
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
117 /* float32 support new to SDL 1.3 */
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
118 #define AUDIO_F32LSB 0x8120 /* 32-bit floating point samples */
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
119 #define AUDIO_F32MSB 0x9120 /* As above, but big-endian byte order */
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
120 #define AUDIO_F32 AUDIO_F32LSB
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
121
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
122 /* Native audio byte ordering */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
123 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
124 #define AUDIO_U16SYS AUDIO_U16LSB
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
125 #define AUDIO_S16SYS AUDIO_S16LSB
1964
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
126 #define AUDIO_S32SYS AUDIO_S32LSB
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
127 #define AUDIO_U32SYS AUDIO_U32LSB
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
128 #define AUDIO_F32SYS AUDIO_F32LSB
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
129 #else
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
130 #define AUDIO_U16SYS AUDIO_U16MSB
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
131 #define AUDIO_S16SYS AUDIO_S16MSB
1964
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
132 #define AUDIO_S32SYS AUDIO_S32MSB
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
133 #define AUDIO_U32SYS AUDIO_U32MSB
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
134 #define AUDIO_F32SYS AUDIO_F32MSB
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
135 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
136
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
137
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
138 /* A structure to hold a set of audio conversion filters and buffers */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
139 typedef struct SDL_AudioCVT
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
140 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
141 int needed; /* Set to 1 if conversion possible */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
142 Uint16 src_format; /* Source audio format */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
143 Uint16 dst_format; /* Target audio format */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
144 double rate_incr; /* Rate conversion increment */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
145 Uint8 *buf; /* Buffer to hold entire audio data */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
146 int len; /* Length of original audio buffer */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
147 int len_cvt; /* Length of converted audio buffer */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
148 int len_mult; /* buffer must be len*len_mult big */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
149 double len_ratio; /* Given len, final size is len*len_ratio */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
150 void (SDLCALL * filters[10]) (struct SDL_AudioCVT * cvt, Uint16 format);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
151 int filter_index; /* Current audio conversion function */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
152 } SDL_AudioCVT;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
153
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
154
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
155 /* Function prototypes */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
156
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
157 /* These functions return the list of built in video drivers, in the
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
158 * order that they are normally initialized by default.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
159 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
160 extern DECLSPEC int SDLCALL SDL_GetNumAudioDrivers(void);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
161 extern DECLSPEC const char *SDLCALL SDL_GetAudioDriver(int index);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
162
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
163 /* These functions are used internally, and should not be used unless you
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
164 * have a specific need to specify the audio driver you want to use.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
165 * You should normally use SDL_Init() or SDL_InitSubSystem().
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
166 */
337
9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
167 extern DECLSPEC int SDLCALL SDL_AudioInit(const char *driver_name);
9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
168 extern DECLSPEC void SDLCALL SDL_AudioQuit(void);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
169
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
170 /* This function returns the name of the current audio driver, or NULL
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
171 * if no driver has been initialized.
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
172 */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
173 extern DECLSPEC const char *SDLCALL SDL_GetCurrentAudioDriver(void);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
174
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
175 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
176 * This function opens the audio device with the desired parameters, and
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
177 * returns 0 if successful, placing the actual hardware parameters in the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
178 * structure pointed to by 'obtained'. If 'obtained' is NULL, the audio
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
179 * data passed to the callback function will be guaranteed to be in the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
180 * requested format, and will be automatically converted to the hardware
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
181 * audio format if necessary. This function returns -1 if it failed
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
182 * to open the audio device, or couldn't set up the audio thread.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
183 *
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
184 * When filling in the desired audio spec structure,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
185 * 'desired->freq' should be the desired audio frequency in samples-per-second.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
186 * 'desired->format' should be the desired audio format.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
187 * 'desired->samples' is the desired size of the audio buffer, in samples.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
188 * This number should be a power of two, and may be adjusted by the audio
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
189 * driver to a value more suitable for the hardware. Good values seem to
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
190 * range between 512 and 8096 inclusive, depending on the application and
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
191 * CPU speed. Smaller values yield faster response time, but can lead
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
192 * to underflow if the application is doing heavy processing and cannot
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
193 * fill the audio buffer in time. A stereo sample consists of both right
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
194 * and left channels in LR ordering.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
195 * Note that the number of samples is directly related to time by the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
196 * following formula: ms = (samples*1000)/freq
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
197 * 'desired->size' is the size in bytes of the audio buffer, and is
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
198 * calculated by SDL_OpenAudio().
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
199 * 'desired->silence' is the value used to set the buffer to silence,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
200 * and is calculated by SDL_OpenAudio().
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
201 * 'desired->callback' should be set to a function that will be called
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
202 * when the audio device is ready for more data. It is passed a pointer
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
203 * to the audio buffer, and the length in bytes of the audio buffer.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
204 * This function usually runs in a separate thread, and so you should
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
205 * protect data structures that it accesses by calling SDL_LockAudio()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
206 * and SDL_UnlockAudio() in your code.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
207 * 'desired->userdata' is passed as the first parameter to your callback
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
208 * function.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
209 *
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
210 * The audio device starts out playing silence when it's opened, and should
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
211 * be enabled for playing by calling SDL_PauseAudio(0) when you are ready
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
212 * for your audio callback function to be called. Since the audio driver
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
213 * may modify the requested size of the audio buffer, you should allocate
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
214 * any local mixing buffers after you open the audio device.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
215 */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
216 extern DECLSPEC int SDLCALL SDL_OpenAudio(SDL_AudioSpec * desired,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
217 SDL_AudioSpec * obtained);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
218
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
219 /*
1964
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
220 * SDL Audio Device IDs.
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
221 * A successful call to SDL_OpenAudio() is always device id 1, and legacy
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
222 * SDL audio APIs assume you want this device ID. SDL_OpenAudioDevice() calls
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
223 * always returns devices >= 2 on success. The legacy calls are good both
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
224 * for backwards compatibility and when you don't care about multiple,
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
225 * specific, or capture devices.
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
226 */
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
227 typedef Uint32 SDL_AudioDeviceID;
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
228
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
229 /*
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
230 * Get the number of available devices exposed by the current driver.
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
231 * Only valid after a successfully initializing the audio subsystem.
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
232 */
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
233 extern DECLSPEC int SDLCALL SDL_GetNumAudioDevices(int iscapture);
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
234
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
235 /*
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
236 * Get the human-readable name of a specific audio device.
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
237 * Must be a value between 0 and (number of audio devices-1).
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
238 * Only valid after a successfully initializing the audio subsystem.
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
239 */
1967
01e29c3e9a29 In general, fill in pointers to structures, rather than return them.
Sam Lantinga <slouken@libsdl.org>
parents: 1964
diff changeset
240 extern DECLSPEC const char *SDLCALL SDL_GetAudioDevice(int index,
01e29c3e9a29 In general, fill in pointers to structures, rather than return them.
Sam Lantinga <slouken@libsdl.org>
parents: 1964
diff changeset
241 int iscapture);
1964
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
242
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
243
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
244 /*
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
245 * Open a specific audio device. Passing in a device name of NULL is
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
246 * equivalent to SDL_OpenAudio(). Returns 0 on error, a valid device ID
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
247 * on success.
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
248 */
1967
01e29c3e9a29 In general, fill in pointers to structures, rather than return them.
Sam Lantinga <slouken@libsdl.org>
parents: 1964
diff changeset
249 extern DECLSPEC SDL_AudioDeviceID SDLCALL SDL_OpenAudioDevice(const char
01e29c3e9a29 In general, fill in pointers to structures, rather than return them.
Sam Lantinga <slouken@libsdl.org>
parents: 1964
diff changeset
250 *device,
01e29c3e9a29 In general, fill in pointers to structures, rather than return them.
Sam Lantinga <slouken@libsdl.org>
parents: 1964
diff changeset
251 int iscapture,
01e29c3e9a29 In general, fill in pointers to structures, rather than return them.
Sam Lantinga <slouken@libsdl.org>
parents: 1964
diff changeset
252 const
01e29c3e9a29 In general, fill in pointers to structures, rather than return them.
Sam Lantinga <slouken@libsdl.org>
parents: 1964
diff changeset
253 SDL_AudioSpec *
01e29c3e9a29 In general, fill in pointers to structures, rather than return them.
Sam Lantinga <slouken@libsdl.org>
parents: 1964
diff changeset
254 desired,
01e29c3e9a29 In general, fill in pointers to structures, rather than return them.
Sam Lantinga <slouken@libsdl.org>
parents: 1964
diff changeset
255 SDL_AudioSpec *
01e29c3e9a29 In general, fill in pointers to structures, rather than return them.
Sam Lantinga <slouken@libsdl.org>
parents: 1964
diff changeset
256 obtained);
1964
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
257
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
258
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
259
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
260 /*
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
261 * Get the current audio state:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
262 */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
263 typedef enum
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
264 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
265 SDL_AUDIO_STOPPED = 0,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
266 SDL_AUDIO_PLAYING,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
267 SDL_AUDIO_PAUSED
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
268 } SDL_audiostatus;
337
9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
269 extern DECLSPEC SDL_audiostatus SDLCALL SDL_GetAudioStatus(void);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
270
1967
01e29c3e9a29 In general, fill in pointers to structures, rather than return them.
Sam Lantinga <slouken@libsdl.org>
parents: 1964
diff changeset
271 extern DECLSPEC SDL_audiostatus SDLCALL
01e29c3e9a29 In general, fill in pointers to structures, rather than return them.
Sam Lantinga <slouken@libsdl.org>
parents: 1964
diff changeset
272 SDL_GetAudioDeviceStatus(SDL_AudioDeviceID dev);
1964
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
273
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
274 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
275 * This function pauses and unpauses the audio callback processing.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
276 * It should be called with a parameter of 0 after opening the audio
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
277 * device to start playing sound. This is so you can safely initialize
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
278 * data for your callback function after opening the audio device.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
279 * Silence will be written to the audio device during the pause.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
280 */
337
9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
281 extern DECLSPEC void SDLCALL SDL_PauseAudio(int pause_on);
1964
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
282 extern DECLSPEC void SDLCALL SDL_PauseAudioDevice(SDL_AudioDeviceID dev,
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
283 int pause_on);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
284
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
285 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
286 * This function loads a WAVE from the data source, automatically freeing
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
287 * that source if 'freesrc' is non-zero. For example, to load a WAVE file,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
288 * you could do:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
289 * SDL_LoadWAV_RW(SDL_RWFromFile("sample.wav", "rb"), 1, ...);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
290 *
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
291 * If this function succeeds, it returns the given SDL_AudioSpec,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
292 * filled with the audio data format of the wave data, and sets
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
293 * 'audio_buf' to a malloc()'d buffer containing the audio data,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
294 * and sets 'audio_len' to the length of that audio buffer, in bytes.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
295 * You need to free the audio buffer with SDL_FreeWAV() when you are
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
296 * done with it.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
297 *
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
298 * This function returns NULL and sets the SDL error message if the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
299 * wave file cannot be opened, uses an unknown data format, or is
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
300 * corrupt. Currently raw and MS-ADPCM WAVE files are supported.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
301 */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
302 extern DECLSPEC SDL_AudioSpec *SDLCALL SDL_LoadWAV_RW(SDL_RWops * src,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
303 int freesrc,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
304 SDL_AudioSpec * spec,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
305 Uint8 ** audio_buf,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
306 Uint32 * audio_len);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
307
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
308 /* Compatibility convenience function -- loads a WAV from a file */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
309 #define SDL_LoadWAV(file, spec, audio_buf, audio_len) \
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
310 SDL_LoadWAV_RW(SDL_RWFromFile(file, "rb"),1, spec,audio_buf,audio_len)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
311
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
312 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
313 * This function frees data previously allocated with SDL_LoadWAV_RW()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
314 */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
315 extern DECLSPEC void SDLCALL SDL_FreeWAV(Uint8 * audio_buf);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
316
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
317 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
318 * This function takes a source format and rate and a destination format
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
319 * and rate, and initializes the 'cvt' structure with information needed
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
320 * by SDL_ConvertAudio() to convert a buffer of audio data from one format
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
321 * to the other.
1964
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
322 * Returns -1 if the format conversion is not supported, 0 if there's
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
323 * no conversion needed, or 1 if the audio filter is set up.
0
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: 1358
diff changeset
325 extern DECLSPEC int SDLCALL SDL_BuildAudioCVT(SDL_AudioCVT * cvt,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
326 Uint16 src_format,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
327 Uint8 src_channels,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
328 int src_rate,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
329 Uint16 dst_format,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
330 Uint8 dst_channels,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
331 int dst_rate);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
332
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
333 /* Once you have initialized the 'cvt' structure using SDL_BuildAudioCVT(),
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
334 * created an audio buffer cvt->buf, and filled it with cvt->len bytes of
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
335 * audio data in the source format, this function will convert it in-place
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
336 * to the desired format.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
337 * The data conversion may expand the size of the audio data, so the buffer
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
338 * cvt->buf should be allocated after the cvt structure is initialized by
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
339 * SDL_BuildAudioCVT(), and should be cvt->len*cvt->len_mult bytes long.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
340 */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
341 extern DECLSPEC int SDLCALL SDL_ConvertAudio(SDL_AudioCVT * cvt);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
342
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
343 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
344 * This takes two audio buffers of the playing audio format and mixes
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
345 * them, performing addition, volume adjustment, and overflow clipping.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
346 * The volume ranges from 0 - 128, and should be set to SDL_MIX_MAXVOLUME
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
347 * for full audio volume. Note this does not change hardware volume.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
348 * This is provided for convenience -- you can mix your own audio data.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
349 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
350 #define SDL_MIX_MAXVOLUME 128
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
351 extern DECLSPEC void SDLCALL SDL_MixAudio(Uint8 * dst, const Uint8 * src,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
352 Uint32 len, int volume);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
353
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
354 /*
1964
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
355 * This works like SDL_MixAudio, but you specify the audio format instead of
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
356 * using the format of audio device 1. Thus it can be used when no audio
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
357 * device is open at all.
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
358 */
1967
01e29c3e9a29 In general, fill in pointers to structures, rather than return them.
Sam Lantinga <slouken@libsdl.org>
parents: 1964
diff changeset
359 extern DECLSPEC void SDLCALL SDL_MixAudioFormat(Uint8 * dst,
01e29c3e9a29 In general, fill in pointers to structures, rather than return them.
Sam Lantinga <slouken@libsdl.org>
parents: 1964
diff changeset
360 const Uint8 * src,
1964
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
361 SDL_AudioFormat format,
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
362 Uint32 len, int volume);
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
363
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
364 /*
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
365 * The lock manipulated by these functions protects the callback function.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
366 * During a LockAudio/UnlockAudio pair, you can be guaranteed that the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
367 * callback function is not running. Do not call these from the callback
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
368 * function or you will cause deadlock.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
369 */
337
9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
370 extern DECLSPEC void SDLCALL SDL_LockAudio(void);
1964
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
371 extern DECLSPEC void SDLCALL SDL_LockAudioDevice(SDL_AudioDeviceID dev);
337
9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
372 extern DECLSPEC void SDLCALL SDL_UnlockAudio(void);
1964
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
373 extern DECLSPEC void SDLCALL SDL_UnlockAudioDevice(SDL_AudioDeviceID dev);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
374
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
375 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
376 * This function shuts down audio processing and closes the audio device.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
377 */
337
9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
378 extern DECLSPEC void SDLCALL SDL_CloseAudio(void);
1964
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
379 extern DECLSPEC void SDLCALL SDL_CloseAudioDevice(SDL_AudioDeviceID dev);
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
380
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
381 /*
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
382 * Returns 1 if audio device is still functioning, zero if not, -1 on error.
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
383 */
071b6598d48f 1.3 API proposals for audio subsystem. Nothing in here is guaranteed to
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
384 extern DECLSPEC int SDLCALL SDL_AudioDeviceConnected(SDL_AudioDeviceID dev);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
385
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
386
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
387 /* Ends C function definitions when using C++ */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
388 #ifdef __cplusplus
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
389 /* *INDENT-OFF* */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
390 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
391 /* *INDENT-ON* */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
392 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
393 #include "close_code.h"
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
394
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
395 #endif /* _SDL_audio_h */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
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: 1358
diff changeset
397 /* vi: set ts=4 sw=4 expandtab: */