Mercurial > sdl-ios-xcode
annotate src/audio/SDL_sysaudio.h @ 3099:82e60908fab1
Date: Mon, 23 Mar 2009 09:17:24 +0200
From: "Mike Gorchak"
Subject: New QNX patches
Please apply patch qnx4.diff, which is attached. What has been done:
1)Added back OpenGL ES renderer for QNX target. Added few corrections to
OpenGL ES renderer to let it work under QNX. OpenGL ES renderer do not
support textures under QNX, so I think some additional work must be done.
2) Added GL_OES_query_matrix extension to SDL_opengles.h header file, which
required by OpenGL ES 1.1 specification.
3) Added attribute clearing at the entrance of function
SDL_GL_GetAttribure(). Added error checking into the function
SDL_GL_GetAttribure(), because some attributes can't be obtained in OpenGL
ES 1.0.
4) Porting testdyngles to OpenGL ES 1.0 (1.1 has glColor4ub() and
glColor4f() functions, but 1.0 has glColor4f() only).
5) Added error checking after obtaining attributes using
SDL_GL_GetAttribute() function to the testgl2 and testgles.
6) Small correction to testmultiaudio with printing errors.
7) Added software and accelerated OpenGL ES 1.0 support into the QNX GF
driver.
Please remove ./src/audio/nto directory - it will not be used anymore.
Please create ./src/audio/qsa directory and add content of the archive
qsa.tar.gz into this directory. I rewrote some sound code, added support for
multiple audio cards, enumeration, etc. Added initial support for capture.
As far as I can understand SDL 1.3 is not supporting audio capture right now
? Sam, Am I right ? Or audio capture must be supported through the
PlayDevice routine ?
And last, please put file SDL_gf_opengles.c to the ./src/video/qnxgf
directory. It is OpenGL ES 1.1 emulation layer for some functions, which are
not supported by OpenGL ES 1.0.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Tue, 24 Mar 2009 10:33:12 +0000 |
parents | 99210400e8b9 |
children | 0d1b16ee0bca |
rev | line source |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
2859 | 3 Copyright (C) 1997-2009 Sam Lantinga |
0 | 4 |
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5 This library is SDL_free software; you can redistribute it and/or |
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6 modify it under the terms of the GNU Lesser General Public |
0 | 7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
0 | 9 |
10 This library is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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13 Lesser General Public License for more details. |
0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
0 | 18 |
19 Sam Lantinga | |
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20 slouken@libsdl.org |
0 | 21 */ |
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22 #include "SDL_config.h" |
0 | 23 |
24 #ifndef _SDL_sysaudio_h | |
25 #define _SDL_sysaudio_h | |
26 | |
27 #include "SDL_mutex.h" | |
28 #include "SDL_thread.h" | |
29 | |
30 /* The SDL audio driver */ | |
31 typedef struct SDL_AudioDevice SDL_AudioDevice; | |
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32 #define _THIS SDL_AudioDevice *_this |
0 | 33 |
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34 typedef struct SDL_AudioDriverImpl |
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35 { |
2060 | 36 int (*DetectDevices) (int iscapture); |
37 const char *(*GetDeviceName) (int index, int iscapture); | |
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38 int (*OpenDevice) (_THIS, const char *devname, int iscapture); |
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39 void (*ThreadInit) (_THIS); /* Called by audio thread at start */ |
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40 void (*WaitDevice) (_THIS); |
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41 void (*PlayDevice) (_THIS); |
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42 Uint8 *(*GetDeviceBuf) (_THIS); |
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43 void (*WaitDone) (_THIS); |
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44 void (*CloseDevice) (_THIS); |
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45 void (*LockDevice) (_THIS); |
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46 void (*UnlockDevice) (_THIS); |
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47 void (*Deinitialize) (void); |
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48 |
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49 /* Some flags to push duplicate code into the core and reduce #ifdefs. */ |
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50 int ProvidesOwnCallbackThread:1; |
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51 int SkipMixerLock:1; |
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52 int HasCaptureSupport:1; |
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53 int OnlyHasDefaultOutputDevice:1; |
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54 int OnlyHasDefaultInputDevice:1; |
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55 } SDL_AudioDriverImpl; |
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56 |
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57 |
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58 typedef struct SDL_AudioDriver |
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59 { |
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60 /* * * */ |
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61 /* The name of this audio driver */ |
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62 const char *name; |
0 | 63 |
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64 /* * * */ |
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65 /* The description of this audio driver */ |
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66 const char *desc; |
0 | 67 |
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68 SDL_AudioDriverImpl impl; |
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69 } SDL_AudioDriver; |
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70 |
0 | 71 |
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72 /* Streamer */ |
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73 typedef struct |
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74 { |
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75 Uint8 *buffer; |
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76 int max_len; /* the maximum length in bytes */ |
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77 int read_pos, write_pos; /* the position of the write and read heads in bytes */ |
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78 } SDL_AudioStreamer; |
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79 |
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80 |
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81 /* Define the SDL audio driver structure */ |
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82 struct SDL_AudioDevice |
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83 { |
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84 /* * * */ |
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85 /* Data common to all devices */ |
0 | 86 |
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87 /* The current audio specification (shared with audio thread) */ |
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88 SDL_AudioSpec spec; |
0 | 89 |
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90 /* An audio conversion block for audio format emulation */ |
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91 SDL_AudioCVT convert; |
0 | 92 |
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93 /* The streamer, if sample rate conversion necessitates it */ |
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94 int use_streamer; |
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95 SDL_AudioStreamer streamer; |
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96 |
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97 /* Current state flags */ |
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98 int iscapture; |
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99 int enabled; |
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100 int paused; |
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101 int opened; |
0 | 102 |
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103 /* Fake audio buffer for when the audio hardware is busy */ |
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104 Uint8 *fake_stream; |
0 | 105 |
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106 /* A semaphore for locking the mixing buffers */ |
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107 SDL_mutex *mixer_lock; |
0 | 108 |
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109 /* A thread to feed the audio device */ |
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110 SDL_Thread *thread; |
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111 Uint32 threadid; |
0 | 112 |
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113 /* * * */ |
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114 /* Data private to this driver */ |
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115 struct SDL_PrivateAudioData *hidden; |
0 | 116 }; |
117 #undef _THIS | |
118 | |
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119 typedef struct AudioBootStrap |
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120 { |
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121 const char *name; |
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122 const char *desc; |
2060 | 123 int (*init) (SDL_AudioDriverImpl * impl); |
124 int demand_only:1; /* 1==request explicitly, or it won't be available. */ | |
0 | 125 } AudioBootStrap; |
126 | |
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127 #endif /* _SDL_sysaudio_h */ |
0 | 128 |
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129 /* vi: set ts=4 sw=4 expandtab: */ |