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4718
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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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.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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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
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21
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22 This file written by Ryan C. Gordon (icculus@icculus.org)
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23 */
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24 #include "SDL_config.h"
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25
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26 /* Output audio to Android */
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27
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28 #include "SDL_audio.h"
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29 #include "../SDL_audio_c.h"
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30 #include "SDL_androidaudio.h"
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31
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4724
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32 extern void Android_UpdateAudioBuffer(unsigned char *buf, int len);
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33
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34 #include <android/log.h>
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35
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36 static int
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37 AndroidAUD_OpenDevice(_THIS, const char *devname, int iscapture)
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38 {
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4724
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39 SDL_AudioFormat test_format = SDL_FirstAudioFormat(this->spec.format);
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40 int valid_datatype = 0;
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41
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42 //TODO: Sample rates etc
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43 __android_log_print(ANDROID_LOG_INFO, "SDL", "AndroidAudio Open\n");
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4724
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44
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45 this->hidden = SDL_malloc(sizeof(*(this->hidden)));
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46 if (!this->hidden) {
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47 SDL_OutOfMemory();
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48 return 0;
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49 }
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50 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
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51
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52 while ((!valid_datatype) && (test_format)) {
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53 this->spec.format = test_format;
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54 switch (test_format) {
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55 case AUDIO_S8:
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56 /*case AUDIO_S16LSB: */
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57 valid_datatype = 1;
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58 break;
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59 default:
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60 test_format = SDL_NextAudioFormat();
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61 break;
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62 }
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63 }
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64
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65 return 1;
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66 }
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67
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68 static void
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69 AndroidAUD_PlayDevice(_THIS)
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70 {
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71 __android_log_print(ANDROID_LOG_INFO, "SDL", "AndroidAudio Play\n");
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72
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73
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74 //playGenericSound(this->hidden->mixbuf, this->hidden->mixlen);
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75
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76 #if 0
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77
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78 // sound->rate = 22050; /* sample rate = 22050Hz */
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79 // sound->vol = 127; /* volume [0..127] for [min..max] */
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80 // sound->pan = 64; /* balance [0..127] for [left..right] */
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81 // sound->format = 0; /* 0 for 16-bit, 1 for 8-bit */
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82 // playSound(sound);
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83 #endif
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84 }
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85
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86
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87 static Uint8 *
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88 AndroidAUD_GetDeviceBuf(_THIS)
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89 {
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90 //__android_log_print(ANDROID_LOG_INFO, "SDL", "****** get device buf\n");
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91
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92
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93 // sound->data = this->hidden->mixbuf;/* pointer to raw audio data */
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94 // sound->len = this->hidden->mixlen; /* size of raw data pointed to above */
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95
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96
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97 Android_UpdateAudioBuffer(this->hidden->mixbuf, this->hidden->mixlen);
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98
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99 return this->hidden->mixbuf; /* is this right? */
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100 }
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101
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102 static void
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103 AndroidAUD_WaitDevice(_THIS)
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104 {
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105 /* stub */
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106 __android_log_print(ANDROID_LOG_INFO, "SDL", "****** wait device buf\n");
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107 }
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108
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109 static void
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110 AndroidAUD_CloseDevice(_THIS)
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111 {
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112 /* stub */
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113 __android_log_print(ANDROID_LOG_INFO, "SDL", "****** close device buf\n");
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114 }
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115
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116 static int
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117 AndroidAUD_Init(SDL_AudioDriverImpl * impl)
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118 {
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119 /* Set the function pointers */
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120 impl->OpenDevice = AndroidAUD_OpenDevice;
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121 impl->PlayDevice = AndroidAUD_PlayDevice;
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122 impl->WaitDevice = AndroidAUD_WaitDevice;
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123 impl->GetDeviceBuf = AndroidAUD_GetDeviceBuf;
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124 impl->CloseDevice = AndroidAUD_CloseDevice;
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125
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126 /* and the capabilities */
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127 impl->HasCaptureSupport = 0; //TODO
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128 impl->OnlyHasDefaultOutputDevice = 1;
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129 impl->OnlyHasDefaultInputDevice = 1;
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130
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131 __android_log_print(ANDROID_LOG_INFO, "SDL","Audio init\n");
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132
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133 return 1; /* this audio target is available. */
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134 }
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135
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136 AudioBootStrap ANDROIDAUD_bootstrap = {
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137 "android", "SDL Android audio driver", AndroidAUD_Init, 0 /*1? */
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138 };
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139
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140 /* vi: set ts=4 sw=4 expandtab: */
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