[17] | 1 | /* -*- mode: C; tab-width:8; c-basic-offset:8 -*- |
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| 2 | * vi:set ts=8: |
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| 3 | * |
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| 4 | * al_buffer.c |
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| 5 | * |
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| 6 | * Stuff related to the management and use of buffers. |
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| 7 | * |
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| 8 | */ |
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| 9 | #include "al_siteconfig.h" |
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| 10 | |
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| 11 | #include <AL/al.h> |
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| 12 | |
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| 13 | /* for alutLoadVorbis_LOKI and alBufferAppendData_LOKI */ |
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| 14 | #include <AL/alext.h> |
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| 15 | |
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| 16 | #include <stdio.h> |
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| 17 | #include <stddef.h> |
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| 18 | #include <stdlib.h> |
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| 19 | #include <string.h> |
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| 20 | |
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| 21 | #include "al_buffer.h" |
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| 22 | #include "al_bpool.h" |
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| 23 | #include "al_debug.h" |
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| 24 | #include "al_error.h" |
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| 25 | #include "al_main.h" |
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| 26 | #include "al_source.h" |
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| 27 | #include "al_types.h" |
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| 28 | #include "alc/alc_context.h" |
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| 29 | #include "alc/alc_speaker.h" |
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| 30 | |
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| 31 | #include "audioconvert/audioconvert.h" |
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| 32 | |
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| 33 | #include "al_threadlib.h" |
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| 34 | #include "al_mutexlib.h" |
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| 35 | |
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| 36 | #ifndef elementsof |
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| 37 | #define elementsof(a) ((sizeof(a)) / (sizeof *(a))) |
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| 38 | #endif |
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| 39 | |
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| 40 | /* |
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| 41 | * buf_pool is a the bpool_t structure which we use to slab allocate |
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| 42 | * AL_buffers. |
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| 43 | */ |
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| 44 | static bpool_t buf_pool; |
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| 45 | |
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| 46 | /* |
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| 47 | * Mutex guarding buf_pool. |
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| 48 | */ |
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| 49 | static MutexID buf_mutex; |
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| 50 | |
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| 51 | /* |
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| 52 | * _alDestroyBuffer(void *buf) |
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| 53 | * |
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| 54 | * _alDestroyBuffer is passed an AL_buffer pointer, masquerading as a void |
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| 55 | * pointer, and frees the data structures internal to the AL_buffer, but |
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| 56 | * not the buffer itself. |
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| 57 | * |
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| 58 | * This is called by bpool_dealloc. |
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| 59 | */ |
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| 60 | static void _alDestroyBuffer( void *buf ); |
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| 61 | |
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| 62 | /* |
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| 63 | * ALvoid *_alConvert( const ALvoid *data, |
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| 64 | * ALenum f_format, ALuint f_size, ALuint f_freq, |
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| 65 | * ALenum t_format, ALuint t_freq, ALuint *retsize, |
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| 66 | * ALenum should_use_passed_data); |
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| 67 | * |
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| 68 | * _alConvert takes the passed data and converts it from it's current |
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| 69 | * format (f_format) to the desired format (t_format), etc, returning |
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| 70 | * the converted data and setting retsize to the new size of the |
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| 71 | * converted data. The passed data must either be raw PCM data or |
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| 72 | * must correspond with one of the headered extension formats. |
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| 73 | * |
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| 74 | * If should_use_passed_data is set to AL_TRUE, then _alConvert will |
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| 75 | * attempt to do the conversion in place. Otherwise, new data will |
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| 76 | * be allocated for the purpose. |
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| 77 | * |
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| 78 | * Returns NULL on error. |
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| 79 | */ |
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| 80 | static ALvoid *_alConvert(const ALvoid *data, |
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| 81 | ALenum f_format, ALuint f_size, ALuint f_freq, |
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| 82 | ALenum t_format, ALuint t_freq, ALuint *retsize, |
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| 83 | ALenum should_use_passed_data); |
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| 84 | |
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| 85 | /* |
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| 86 | * _alBufferDestroyCallbackBuffer( AL_buffer *buf ) |
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| 87 | * |
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| 88 | * Executes the buffer completion callback associated with buf, if there is |
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| 89 | * one. |
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| 90 | */ |
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| 91 | static void _alBufferDestroyCallbackBuffer( AL_buffer *buf ); |
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| 92 | |
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| 93 | /* |
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| 94 | * buffer source state |
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| 95 | */ |
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| 96 | |
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| 97 | /* |
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| 98 | * _alBufferAddQueueRef( AL_buffer *buf, ALuint sid ) |
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| 99 | * |
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| 100 | * adds a queue reference to the AL_buffer *buf. The queue reference |
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| 101 | * refers to the source named by sid. |
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| 102 | * |
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| 103 | * If no current reference is added, and this queue reference is not deleted, |
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| 104 | * _alGet{Bid,Buffer}State will return AL_PENDING. |
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| 105 | * |
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| 106 | */ |
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| 107 | static void _alBufferAddQueueRef( AL_buffer *buf, ALuint sid ); |
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| 108 | |
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| 109 | /* |
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| 110 | * _alBufferRemoveQueueRef( AL_buffer *buf, ALuint sid ) |
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| 111 | * |
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| 112 | * removes a queue reference to the AL_buffer *buf. The first queue |
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| 113 | * reference refering to sid will be removed. |
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| 114 | */ |
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| 115 | static void _alBufferRemoveQueueRef( AL_buffer *buf, ALuint sid ); |
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| 116 | |
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| 117 | /* |
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| 118 | * _alBufferAddCurrentRef( AL_buffer *buf, ALuint sid ) |
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| 119 | * |
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| 120 | * adds a current reference to the AL_buffer *buf. The reference refers |
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| 121 | * to the source named by sid. |
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| 122 | * |
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| 123 | * If this reference is not removed, _alGet{Bid,Buffer}state will return |
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| 124 | * AL_PROCESSED. |
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| 125 | */ |
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| 126 | static void _alBufferAddCurrentRef( AL_buffer *buf, ALuint sid ); |
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| 127 | |
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| 128 | /* |
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| 129 | * _alBufferRemoveCurrentRef( AL_buffer *buf, ALuint sid ) |
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| 130 | * |
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| 131 | * removes a current reference to the AL_buffer *buf. The first current |
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| 132 | * reference refering to sid will be removed. |
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| 133 | */ |
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| 134 | static void _alBufferRemoveCurrentRef( AL_buffer *buf, ALuint sid ); |
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| 135 | |
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| 136 | /* |
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| 137 | * alGenBuffers( ALsizei n, ALuint *buffer ) |
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| 138 | * |
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| 139 | * Perform full allocation of n-1 buffer ids. Fails and nops |
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| 140 | * if n-1 buffers could not be created. |
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| 141 | * |
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| 142 | * If n is 0, legal nop. If n < 0, set INVALID_VALUE and nop. |
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| 143 | */ |
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| 144 | void alGenBuffers( ALsizei n, ALuint *buffer ) { |
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| 145 | ALuint *temp; |
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| 146 | int bindex; |
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| 147 | int i; |
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| 148 | |
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| 149 | if(n == 0) { |
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| 150 | return; /* silently return */ |
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| 151 | } |
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| 152 | |
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| 153 | if(n < 0) { |
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| 154 | _alDebug(ALD_BUFFER, __FILE__, __LINE__, |
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| 155 | "alGenBuffers: invalid n %d\n", n); |
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| 156 | |
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| 157 | _alcDCLockContext(); |
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| 158 | _alDCSetError( AL_INVALID_VALUE ); |
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| 159 | _alcDCUnlockContext(); |
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| 160 | return; |
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| 161 | } |
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| 162 | |
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| 163 | temp = malloc(n * sizeof *temp); |
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| 164 | if(temp == NULL) { |
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| 165 | /* |
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| 166 | * Could not reserve memory for temporary |
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| 167 | * ALuint *buffer. |
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| 168 | */ |
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| 169 | _alcDCLockContext(); |
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| 170 | _alDCSetError( AL_OUT_OF_MEMORY ); |
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| 171 | _alcDCUnlockContext(); |
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| 172 | return; |
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| 173 | } |
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| 174 | |
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| 175 | _alLockBuffer(); |
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| 176 | |
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| 177 | for(i = 0; i < n; i++) { |
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| 178 | bindex = bpool_alloc(&buf_pool); |
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| 179 | |
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| 180 | if(bindex == -1) { |
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| 181 | /* |
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| 182 | * Could not honor request in full. We |
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| 183 | * unlock, dealloc, set error, return. |
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| 184 | * |
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| 185 | * FIXME: Should we have a non-locking |
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| 186 | * version of DeleteBuffers and maintain this |
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| 187 | * lock as long as possible? |
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| 188 | */ |
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| 189 | _alUnlockBuffer(); |
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| 190 | |
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| 191 | if(i > 0) { |
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| 192 | /* |
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| 193 | * Only delete buffers that have |
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| 194 | * been created. |
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| 195 | */ |
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| 196 | alDeleteBuffers(i, temp); |
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| 197 | } |
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| 198 | |
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| 199 | _alcDCLockContext(); |
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| 200 | _alDCSetError(AL_OUT_OF_MEMORY); |
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| 201 | _alcDCUnlockContext(); |
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| 202 | |
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| 203 | free( temp ); |
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| 204 | |
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| 205 | return; |
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| 206 | } |
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| 207 | |
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| 208 | temp[i] = bindex; |
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| 209 | } |
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| 210 | |
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| 211 | _alUnlockBuffer(); |
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| 212 | |
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| 213 | /* |
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| 214 | * temp[0..n-1] now populated with n valid buffer names, |
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| 215 | * so copy it. |
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| 216 | */ |
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| 217 | memcpy( buffer, temp, n * sizeof *buffer ); |
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| 218 | |
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| 219 | free( temp ); |
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| 220 | |
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| 221 | return; |
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| 222 | } |
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| 223 | |
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| 224 | /* |
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| 225 | * alDeleteBuffers( ALsizei n, ALuint *buffers ) |
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| 226 | * |
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| 227 | * Perform full deallocation of buffers[0..n-1]. If a member |
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| 228 | * of buffers[0..n-1] is not a valid buffer id, set INVALID_NAME |
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| 229 | * and return without deallocating any member. |
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| 230 | * |
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| 231 | * If n is 0, legal nop. If n < 0, set INVALID_VALUE and nop. |
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| 232 | * |
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| 233 | * FIXME: not well tested |
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| 234 | * |
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| 235 | * Well, that's not totally true. I've tested deleting |
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| 236 | * buffers (obviously!) but there's a whole set of mojo where it |
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| 237 | * becomes possible to delete buffers in playing sources, which |
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| 238 | * is bad bad bad. |
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| 239 | * |
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| 240 | * The ref counting system is made to avoid that bad mojo by never |
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| 241 | * deleting buffers associated with playing sources. *That* is |
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| 242 | * what is not well tested. |
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| 243 | * |
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| 244 | * Of course, the behaviour of deleting buffers which are currently |
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| 245 | * associated with sources (especially playing sources!) needs to |
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| 246 | * be specified. It's not at-the-moment. |
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| 247 | */ |
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| 248 | void alDeleteBuffers( ALsizei n, const ALuint* buffers ) { |
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| 249 | AL_buffer *buf; |
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| 250 | ALenum bufstate; |
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| 251 | int i; |
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| 252 | |
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| 253 | if(n == 0) { |
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| 254 | /* silently return */ |
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| 255 | return; |
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| 256 | } |
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| 257 | |
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| 258 | _alLockBuffer(); |
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| 259 | |
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| 260 | if(n < 0) { |
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| 261 | _alUnlockBuffer(); |
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| 262 | |
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| 263 | _alcDCLockContext(); |
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| 264 | _alDCSetError( AL_INVALID_VALUE ); |
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| 265 | _alcDCUnlockContext(); |
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| 266 | |
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| 267 | return; |
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| 268 | } |
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| 269 | |
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| 270 | /* |
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| 271 | * test each buffer to ensure we don't have any |
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| 272 | * invalid names in there. |
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| 273 | */ |
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| 274 | for(i = 0; i < n; i++) { |
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| 275 | if(_alIsBuffer(buffers[i]) == AL_FALSE) { |
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| 276 | /* not a buffer */ |
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| 277 | _alcDCLockContext(); |
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| 278 | _alDCSetError( AL_INVALID_NAME ); |
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| 279 | _alcDCUnlockContext(); |
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| 280 | |
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| 281 | _alUnlockBuffer(); |
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| 282 | return; |
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| 283 | } |
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| 284 | } |
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| 285 | |
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| 286 | while(n--) { |
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| 287 | bufstate = _alGetBidState( buffers[n] ); |
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| 288 | |
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| 289 | if(bufstate == AL_UNUSED) { |
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| 290 | bpool_dealloc(&buf_pool, buffers[n], |
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| 291 | _alDestroyBuffer); |
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| 292 | } else { |
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| 293 | buf = _alGetBuffer( buffers[n] ); |
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| 294 | if(buf == NULL) { |
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| 295 | /* should never happen */ |
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| 296 | _alcDCLockContext(); |
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| 297 | _alDCSetError( AL_INVALID_NAME ); |
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| 298 | _alcDCUnlockContext(); |
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| 299 | |
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| 300 | continue; |
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| 301 | } |
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| 302 | |
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| 303 | /* still in use */ |
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| 304 | buf->flags |= ALB_PENDING_DELETE; |
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| 305 | } |
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| 306 | } |
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| 307 | _alUnlockBuffer(); |
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| 308 | |
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| 309 | return; |
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| 310 | } |
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| 311 | |
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| 312 | /* |
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| 313 | * alIsBuffer( ALuint bid ) |
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| 314 | * |
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| 315 | * Returns AL_TRUE if bid is a valid buffer name, AL_FALSE otherwise. |
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| 316 | * |
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| 317 | */ |
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| 318 | ALboolean alIsBuffer( ALuint bid ) { |
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| 319 | ALboolean retval; |
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| 320 | |
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| 321 | _alLockBuffer(); |
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| 322 | |
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| 323 | retval = _alIsBuffer( bid ); |
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| 324 | |
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| 325 | _alUnlockBuffer(); |
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| 326 | |
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| 327 | return retval; |
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| 328 | } |
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| 329 | |
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| 330 | /* |
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| 331 | * alBufferData( ALuint bid, |
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| 332 | * ALenum format, |
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| 333 | * ALvoid *data, |
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| 334 | * ALsizei size, |
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| 335 | * ALsizei freq ); |
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| 336 | * |
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| 337 | * associates data with bid. |
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| 338 | * |
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| 339 | * If format is invalid, set AL_INVALID_ENUM. If bid is not a valid buffer |
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| 340 | * name, set AL_INVALID_NAME. If not enough memory is available to make a |
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| 341 | * copy of this data, set AL_OUT_OF_MEMORY. |
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| 342 | */ |
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| 343 | void alBufferData( ALuint bid, |
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| 344 | ALenum format, |
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| 345 | const ALvoid* data, |
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| 346 | ALsizei size, |
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| 347 | ALsizei freq ) { |
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| 348 | AL_buffer *buf; |
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| 349 | ALvoid *cdata; |
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| 350 | ALuint i; |
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| 351 | ALuint retsize; |
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| 352 | ALenum tformat; |
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| 353 | ALint tfreq; |
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| 354 | |
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| 355 | if((data == NULL) || (size == 0)) |
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| 356 | { |
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| 357 | _alcDCLockContext(); |
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| 358 | _alDCSetError(AL_INVALID_VALUE); |
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| 359 | _alcDCUnlockContext(); |
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| 360 | |
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| 361 | return; |
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| 362 | } |
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| 363 | |
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| 364 | switch(format) { |
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| 365 | #ifdef ENABLE_EXTENSION_AL_EXT_VORBIS |
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| 366 | /* |
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| 367 | * If compiled with the vorbis extension, and we get passed |
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| 368 | * vorbis data, then pass that to the correct extension. |
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| 369 | */ |
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| 370 | case AL_FORMAT_VORBIS_EXT: |
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| 371 | if(alutLoadVorbis_LOKI(bid, data, size) == AL_FALSE) { |
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| 372 | _alcDCLockContext(); |
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| 373 | _alDCSetError(AL_INVALID_OPERATION); |
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| 374 | _alcDCUnlockContext(); |
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| 375 | } |
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| 376 | return; |
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| 377 | break; |
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| 378 | #endif /* ENABLE_EXTENSION_AL_EXT_VORBIS */ |
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| 379 | case AL_FORMAT_WAVE_EXT: |
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| 380 | case AL_FORMAT_MONO8: |
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| 381 | case AL_FORMAT_MONO16: |
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| 382 | case AL_FORMAT_STEREO8: |
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| 383 | case AL_FORMAT_STEREO16: |
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| 384 | case AL_FORMAT_QUAD8_LOKI: |
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| 385 | case AL_FORMAT_QUAD16_LOKI: |
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| 386 | case AL_FORMAT_IMA_ADPCM_MONO16_EXT: |
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| 387 | case AL_FORMAT_IMA_ADPCM_STEREO16_EXT: |
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| 388 | break; |
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| 389 | default: |
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| 390 | _alDebug(ALD_BUFFER, __FILE__, __LINE__, |
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| 391 | "alBufferData: unknown format 0x%x", format); |
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| 392 | _alcDCLockContext(); |
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| 393 | _alDCSetError(AL_INVALID_VALUE); |
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| 394 | _alcDCUnlockContext(); |
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| 395 | return; |
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| 396 | break; |
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| 397 | } |
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| 398 | |
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| 399 | _alLockBuffer(); |
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| 400 | |
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| 401 | buf = _alGetBuffer(bid); |
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| 402 | if(buf == NULL) { |
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| 403 | _alDebug(ALD_BUFFER, __FILE__, __LINE__, |
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| 404 | "alBufferData: buffer id %d not valid", |
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| 405 | bid); |
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| 406 | |
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| 407 | _alcDCLockContext(); |
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| 408 | _alDCSetError(AL_INVALID_NAME); |
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| 409 | _alcDCUnlockContext(); |
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| 410 | |
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| 411 | _alUnlockBuffer(); |
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| 412 | return; |
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| 413 | } |
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| 414 | |
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| 415 | if(buf->flags & ALB_STREAMING) { |
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| 416 | /* Streaming buffers cannot use alBufferData */ |
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| 417 | _alcDCLockContext(); |
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| 418 | _alDCSetError(AL_INVALID_OPERATION); |
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| 419 | _alcDCUnlockContext(); |
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| 420 | |
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| 421 | _alUnlockBuffer(); |
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| 422 | |
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| 423 | return; |
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| 424 | } |
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| 425 | |
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| 426 | if(buf->flags & ALB_CALLBACK) { |
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| 427 | /* If this was previously a callback buffer, |
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| 428 | * reset it. |
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| 429 | */ |
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| 430 | buf->flags &= ~ALB_CALLBACK; |
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| 431 | } |
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| 432 | |
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| 433 | tformat = buf->format; |
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| 434 | tfreq = buf->frequency; |
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| 435 | |
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| 436 | _alUnlockBuffer(); |
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| 437 | |
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| 438 | cdata = _alBufferCanonizeData(format, |
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| 439 | data, |
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| 440 | size, |
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| 441 | freq, |
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| 442 | tformat, |
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| 443 | tfreq, |
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| 444 | &retsize, |
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| 445 | AL_FALSE); |
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| 446 | |
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| 447 | if(cdata == NULL) { |
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| 448 | /* _alBufferCanonize Data should set error */ |
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| 449 | return; |
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| 450 | } |
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| 451 | |
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| 452 | /* |
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| 453 | * alter buffer's data. |
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| 454 | */ |
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| 455 | _alLockBuffer(); |
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| 456 | |
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| 457 | if(buf->size < retsize) |
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| 458 | { |
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| 459 | void *temp_copies[_ALC_MAX_CHANNELS] = { NULL }; |
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| 460 | ALboolean success = AL_TRUE; |
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| 461 | |
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| 462 | /* don't use realloc */ |
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| 463 | _alBufferFreeOrigBuffers(buf); |
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| 464 | |
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| 465 | for(i = 0; i < _alGetChannelsFromFormat(buf->format); i++) |
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| 466 | { |
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| 467 | temp_copies[i] = malloc(retsize); |
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| 468 | success = (temp_copies[i] != NULL) ? AL_TRUE : AL_FALSE; |
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| 469 | } |
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| 470 | |
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| 471 | if(!success) |
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| 472 | { |
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| 473 | free(cdata); |
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| 474 | |
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| 475 | for(i = 0; i < _alGetChannelsFromFormat(buf->format); i++) |
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| 476 | { |
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| 477 | free(temp_copies[i]); |
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| 478 | } |
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| 479 | |
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| 480 | /* JIV FIXME: lock context */ |
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| 481 | _alcDCLockContext(); |
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| 482 | _alDCSetError(AL_OUT_OF_MEMORY); |
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| 483 | _alcDCUnlockContext(); |
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| 484 | |
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| 485 | _alUnlockBuffer(); |
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| 486 | |
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| 487 | return; |
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| 488 | } |
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| 489 | |
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| 490 | switch(_alGetChannelsFromFormat(buf->format)) |
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| 491 | { |
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| 492 | case 1: |
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| 493 | for(i = 0; i < elementsof(buf->orig_buffers); i++) |
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| 494 | { |
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| 495 | buf->orig_buffers[i] = temp_copies[0]; |
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| 496 | } |
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| 497 | |
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| 498 | break; |
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| 499 | case 2: |
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| 500 | for(i = 0; i < elementsof(buf->orig_buffers); i += 2) |
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| 501 | { |
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| 502 | buf->orig_buffers[i] = temp_copies[0]; |
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| 503 | buf->orig_buffers[i+1] = temp_copies[1]; |
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| 504 | } |
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| 505 | |
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| 506 | break; |
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| 507 | case 4: |
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| 508 | assert(elementsof(buf->orig_buffers) >= 4); |
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| 509 | for(i = 0; i < elementsof(buf->orig_buffers); i += 4) |
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| 510 | { |
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| 511 | buf->orig_buffers[i] = temp_copies[0]; |
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| 512 | buf->orig_buffers[i+1] = temp_copies[1]; |
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| 513 | buf->orig_buffers[i+2] = temp_copies[2]; |
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| 514 | buf->orig_buffers[i+3] = temp_copies[3]; |
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| 515 | } |
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| 516 | break; |
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| 517 | case 6: |
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| 518 | assert(elementsof(buf->orig_buffers) >= 6); |
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| 519 | for(i = 0; i < elementsof(buf->orig_buffers); i += 6) |
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| 520 | { |
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| 521 | buf->orig_buffers[i] = temp_copies[0]; |
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| 522 | buf->orig_buffers[i+1] = temp_copies[1]; |
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| 523 | buf->orig_buffers[i+2] = temp_copies[2]; |
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| 524 | buf->orig_buffers[i+3] = temp_copies[3]; |
---|
| 525 | buf->orig_buffers[i+4] = temp_copies[4]; |
---|
| 526 | buf->orig_buffers[i+5] = temp_copies[5]; |
---|
| 527 | } |
---|
| 528 | |
---|
| 529 | break; |
---|
| 530 | default: |
---|
| 531 | /* well this is weird */ |
---|
| 532 | assert(0); |
---|
| 533 | break; |
---|
| 534 | } |
---|
| 535 | } |
---|
| 536 | |
---|
| 537 | _alMonoify((ALshort **) buf->orig_buffers, |
---|
| 538 | cdata, |
---|
| 539 | retsize / _alGetChannelsFromFormat(tformat), |
---|
| 540 | buf->num_buffers, _alGetChannelsFromFormat(tformat)); |
---|
| 541 | |
---|
| 542 | buf->size = retsize / _alGetChannelsFromFormat(tformat); |
---|
| 543 | |
---|
| 544 | _alUnlockBuffer(); |
---|
| 545 | |
---|
| 546 | free(cdata); |
---|
| 547 | |
---|
| 548 | return; |
---|
| 549 | } |
---|
| 550 | |
---|
| 551 | /* |
---|
| 552 | * _alIsBuffer( ALuint bid ) |
---|
| 553 | * |
---|
| 554 | * Non locking version of alIsBuffer. |
---|
| 555 | * |
---|
| 556 | * assumes locked buffers |
---|
| 557 | */ |
---|
| 558 | ALboolean _alIsBuffer( ALuint bid ) { |
---|
| 559 | AL_buffer *buf; |
---|
| 560 | ALboolean retval = AL_TRUE; |
---|
| 561 | |
---|
| 562 | buf = _alGetBuffer( bid ); |
---|
| 563 | if ( !buf || (buf->flags & ALB_PENDING_DELETE) ) { |
---|
| 564 | retval = AL_FALSE; |
---|
| 565 | } |
---|
| 566 | |
---|
| 567 | return retval; |
---|
| 568 | } |
---|
| 569 | |
---|
| 570 | /* |
---|
| 571 | *_alGetBuffer( ALuint bid ). |
---|
| 572 | * |
---|
| 573 | * Returns pointer to the AL_buffer with buffer name bid, or NULL if bid in |
---|
| 574 | * invalid. |
---|
| 575 | * |
---|
| 576 | * assumes that buffers are locked |
---|
| 577 | */ |
---|
| 578 | AL_buffer *_alGetBuffer( ALuint bid ) { |
---|
| 579 | int bindex; |
---|
| 580 | |
---|
| 581 | bindex = bpool_bid_to_index( &buf_pool, bid ); |
---|
| 582 | if(bindex < 0) { |
---|
| 583 | /* invalid bid */ |
---|
| 584 | return NULL; |
---|
| 585 | } |
---|
| 586 | |
---|
| 587 | if(bindex >= (int) buf_pool.size) { |
---|
| 588 | /* buffer id too big */ |
---|
| 589 | return NULL; |
---|
| 590 | } |
---|
| 591 | |
---|
| 592 | if(buf_pool.pool[bindex].inuse == AL_FALSE) { |
---|
| 593 | return NULL; |
---|
| 594 | } |
---|
| 595 | |
---|
| 596 | return bpool_index(&buf_pool, bid); |
---|
| 597 | } |
---|
| 598 | |
---|
| 599 | /* |
---|
| 600 | * _alInitBuffers( void ) |
---|
| 601 | * |
---|
| 602 | * Performs global initialization of buffer specific data |
---|
| 603 | * structures. |
---|
| 604 | * |
---|
| 605 | * Doesn't do much. No default size, so we just initialize |
---|
| 606 | * the mutex. |
---|
| 607 | */ |
---|
| 608 | ALboolean _alInitBuffers( void ) |
---|
| 609 | { |
---|
| 610 | buf_mutex = _alCreateMutex(); |
---|
| 611 | |
---|
| 612 | return AL_TRUE; |
---|
| 613 | } |
---|
| 614 | |
---|
| 615 | /* |
---|
| 616 | * _alGetBufferFromSid( ALuint cid, ALuint sid ) |
---|
| 617 | * |
---|
| 618 | * Retrieves a pointer to the AL_buffer (not the buffer id) associated with |
---|
| 619 | * the source with name sid ( from context with name cid), or NULL if cid, sid |
---|
| 620 | * are invalid or if sid does not have its buffer attribute set. |
---|
| 621 | * |
---|
| 622 | * assumes locked context |
---|
| 623 | */ |
---|
| 624 | AL_buffer *_alGetBufferFromSid( ALuint cid, ALuint sid ) { |
---|
| 625 | AL_buffer *retval; |
---|
| 626 | AL_source *src; |
---|
| 627 | ALuint *buffid; |
---|
| 628 | |
---|
| 629 | src = _alGetSource( cid, sid ); |
---|
| 630 | if(src == NULL) { |
---|
| 631 | return NULL; |
---|
| 632 | } |
---|
| 633 | |
---|
| 634 | buffid = _alGetSourceParam( src, AL_BUFFER ); |
---|
| 635 | if( buffid == NULL ) { |
---|
| 636 | return NULL; |
---|
| 637 | } |
---|
| 638 | |
---|
| 639 | _alLockBuffer(); |
---|
| 640 | |
---|
| 641 | retval = _alGetBuffer( *buffid ); |
---|
| 642 | |
---|
| 643 | _alUnlockBuffer(); |
---|
| 644 | |
---|
| 645 | return retval; |
---|
| 646 | } |
---|
| 647 | |
---|
| 648 | /* |
---|
| 649 | * ALvoid *_alBufferCanonizeData( ALenum format, |
---|
| 650 | * const ALvoid *data, ALuint size, ALuint freq, |
---|
| 651 | * ALenum t_format, ALuint t_freq, |
---|
| 652 | * ALuint *retsize, |
---|
| 653 | * ALenum should_use_passed_data ) |
---|
| 654 | * |
---|
| 655 | * Put data in canonical format, setting retsize and returning a newly |
---|
| 656 | * alloced memory. |
---|
| 657 | * |
---|
| 658 | * If should_use_passed_data is set to AL_TRUE, the data will |
---|
| 659 | * be converted (if possible) in place. |
---|
| 660 | * |
---|
| 661 | * Returns NULL on error. |
---|
| 662 | * |
---|
| 663 | * assumes locked buffers. |
---|
| 664 | */ |
---|
| 665 | ALvoid *_alBufferCanonizeData( ALenum format, |
---|
| 666 | const ALvoid *data, ALuint size, ALuint freq, |
---|
| 667 | ALenum t_format, ALuint t_freq, |
---|
| 668 | ALuint *retsize, |
---|
| 669 | ALenum should_use_passed_data ) { |
---|
| 670 | if(format < 0) { |
---|
| 671 | return NULL; |
---|
| 672 | } |
---|
| 673 | |
---|
| 674 | return _alConvert(data, format, size, freq, t_format, t_freq, |
---|
| 675 | retsize, should_use_passed_data); |
---|
| 676 | } |
---|
| 677 | |
---|
| 678 | /* |
---|
| 679 | * _alDestroyBuffer( void *bufp ) |
---|
| 680 | * |
---|
| 681 | * _alDestroyBuffer is passed an AL_buffer pointer, masquerading as a void |
---|
| 682 | * pointer, and frees the data structures internal to the AL_buffer, but |
---|
| 683 | * not the buffer itself. |
---|
| 684 | * |
---|
| 685 | * This is called by bpool_dealloc. It shouldn't be called my anything else. |
---|
| 686 | */ |
---|
| 687 | static void _alDestroyBuffer( void *bufp ) { |
---|
| 688 | AL_buffer *buf = (AL_buffer *) bufp; |
---|
| 689 | |
---|
| 690 | if(_alBufferIsCallback( buf ) == AL_TRUE) { |
---|
| 691 | /* |
---|
| 692 | * alut decoders need to be informed of |
---|
| 693 | * buffer destruction |
---|
| 694 | */ |
---|
| 695 | _alBufferDestroyCallbackBuffer(buf); |
---|
| 696 | buf->destroy_buffer_callback = NULL; |
---|
| 697 | } |
---|
| 698 | |
---|
| 699 | _alBufferFreeOrigBuffers(buf); |
---|
| 700 | |
---|
| 701 | free( buf->queue_list.sids ); |
---|
| 702 | free( buf->current_list.sids ); |
---|
| 703 | |
---|
| 704 | buf->queue_list.sids = NULL; |
---|
| 705 | buf->current_list.sids = NULL; |
---|
| 706 | |
---|
| 707 | buf->queue_list.size = buf->queue_list.items = 0; |
---|
| 708 | buf->current_list.size = buf->current_list.items = 0; |
---|
| 709 | |
---|
| 710 | /* don't free bufp, let the caller do it if needed */ |
---|
| 711 | |
---|
| 712 | return; |
---|
| 713 | } |
---|
| 714 | |
---|
| 715 | /* |
---|
| 716 | * _alDestroyBuffers( void ) |
---|
| 717 | * |
---|
| 718 | * Destroy all buffers, freeing all data associated with |
---|
| 719 | * each buffer. |
---|
| 720 | */ |
---|
| 721 | void _alDestroyBuffers( void ) { |
---|
| 722 | bpool_free( &buf_pool, _alDestroyBuffer ); |
---|
| 723 | bpool_init( &buf_pool ); |
---|
| 724 | |
---|
| 725 | _alDestroyMutex( buf_mutex ); |
---|
| 726 | |
---|
| 727 | buf_mutex = NULL; |
---|
| 728 | |
---|
| 729 | return; |
---|
| 730 | } |
---|
| 731 | |
---|
| 732 | /* |
---|
| 733 | * FL_alLockBuffer(UNUSED(const char *fn), UNUSED(int ln)) |
---|
| 734 | * |
---|
| 735 | * Locks the buffer mutex, passing fn and ln to _alLockPrintf for debugging |
---|
| 736 | * purposes. |
---|
| 737 | */ |
---|
| 738 | ALboolean FL_alLockBuffer(UNUSED(const char *fn), UNUSED(int ln)) { |
---|
| 739 | _alLockPrintf("_alLockBuffer", fn, ln); |
---|
| 740 | |
---|
| 741 | if( buf_mutex == NULL ) { |
---|
| 742 | return AL_FALSE; |
---|
| 743 | } |
---|
| 744 | |
---|
| 745 | _alLockMutex( buf_mutex ); |
---|
| 746 | |
---|
| 747 | return AL_TRUE; |
---|
| 748 | } |
---|
| 749 | |
---|
| 750 | /* |
---|
| 751 | * FL_alUnlockBuffer(UNUSED(const char *fn), UNUSED(int ln)) |
---|
| 752 | * |
---|
| 753 | * Unlocks the buffer mutex, passing fn and ln to _alLockPrintf for debugging |
---|
| 754 | * purposes. |
---|
| 755 | */ |
---|
| 756 | ALboolean FL_alUnlockBuffer(UNUSED(const char *fn), UNUSED(int ln)) { |
---|
| 757 | _alLockPrintf("_alUnlockBuffer", fn, ln); |
---|
| 758 | |
---|
| 759 | if(buf_mutex == NULL) { |
---|
| 760 | return AL_FALSE; |
---|
| 761 | } |
---|
| 762 | |
---|
| 763 | _alUnlockMutex(buf_mutex); |
---|
| 764 | |
---|
| 765 | return AL_TRUE; |
---|
| 766 | } |
---|
| 767 | |
---|
| 768 | /* |
---|
| 769 | * _alNumBufferHint( ALuint nb ) |
---|
| 770 | * |
---|
| 771 | * Resize buf_pool to contain space for at least nb buffers. A performance |
---|
| 772 | * hint best excercised before creating buffers. |
---|
| 773 | */ |
---|
| 774 | void _alNumBufferHint( ALuint nb ) { |
---|
| 775 | _alLockBuffer(); |
---|
| 776 | |
---|
| 777 | bpool_resize( &buf_pool, nb ); |
---|
| 778 | |
---|
| 779 | _alUnlockBuffer(); |
---|
| 780 | |
---|
| 781 | return; |
---|
| 782 | } |
---|
| 783 | |
---|
| 784 | /* |
---|
| 785 | * _alBidIsStreaming( ALuint bid ) |
---|
| 786 | * |
---|
| 787 | * Returns AL_TRUE if the buffer named by bid was generated by |
---|
| 788 | * alGenStreamingBuffers_LOKI, AL_FALSE otherwise. |
---|
| 789 | * |
---|
| 790 | * assumes locked buffer |
---|
| 791 | */ |
---|
| 792 | ALboolean _alBidIsStreaming( ALuint bid ) { |
---|
| 793 | AL_buffer *buf; |
---|
| 794 | ALboolean retval = AL_FALSE; |
---|
| 795 | |
---|
| 796 | buf = _alGetBuffer( bid ); |
---|
| 797 | if(buf != NULL) { |
---|
| 798 | if(buf->flags & ALB_STREAMING) { |
---|
| 799 | retval = AL_TRUE; |
---|
| 800 | } |
---|
| 801 | } |
---|
| 802 | |
---|
| 803 | return retval; |
---|
| 804 | } |
---|
| 805 | |
---|
| 806 | /* |
---|
| 807 | * _alBidIsCallback( ALuint bid ) |
---|
| 808 | * |
---|
| 809 | * Returns AL_TRUE if the buffer named by bid has been used with |
---|
| 810 | * alBufferDataWithCallback_LOKI, AL_FALSE if bid does not refer to a valid |
---|
| 811 | * bid or has not been used with such a call. |
---|
| 812 | * |
---|
| 813 | * assumes locked buffer |
---|
| 814 | */ |
---|
| 815 | ALboolean _alBidIsCallback( ALuint bid ) { |
---|
| 816 | AL_buffer *buf; |
---|
| 817 | |
---|
| 818 | buf = _alGetBuffer(bid); |
---|
| 819 | |
---|
| 820 | return _alBufferIsCallback(buf); |
---|
| 821 | } |
---|
| 822 | |
---|
| 823 | /* |
---|
| 824 | * _alBufferIsCallback( AL_buffer *buf ) |
---|
| 825 | * |
---|
| 826 | * Returns AL_TRUE if the AL_buffer *buf been used with |
---|
| 827 | * alBufferDataWithCallback_LOKI, AL_FALSE otherwise. |
---|
| 828 | * |
---|
| 829 | * assumes locked buffer |
---|
| 830 | */ |
---|
| 831 | ALboolean _alBufferIsCallback( AL_buffer *buf ) { |
---|
| 832 | ALboolean retval = AL_FALSE; |
---|
| 833 | |
---|
| 834 | if(buf != NULL) { |
---|
| 835 | if(buf->flags & ALB_CALLBACK) { |
---|
| 836 | retval = AL_TRUE; |
---|
| 837 | } |
---|
| 838 | } |
---|
| 839 | |
---|
| 840 | return retval; |
---|
| 841 | } |
---|
| 842 | |
---|
| 843 | /* |
---|
| 844 | * _alBufferDataWithCallback_LOKI( ALuint bid, |
---|
| 845 | * int (*callback)( ALuint sid, |
---|
| 846 | * ALuint bid, |
---|
| 847 | * ALshort *outdata, |
---|
| 848 | * ALenum format, |
---|
| 849 | * ALint freq, |
---|
| 850 | * ALint samples ), |
---|
| 851 | * DestroyCallback_LOKI d_sid, |
---|
| 852 | * DestroyCallback_LOKI d_bid ) |
---|
| 853 | * |
---|
| 854 | * Associates the AL_buffer named by bid with a callback. This is somewhat |
---|
| 855 | * equivilant to calling alBufferData( bid, ... ), except that instead of |
---|
| 856 | * getting all the data at once, whenever the buffer is required to provide |
---|
| 857 | * data, it relies on the callback. |
---|
| 858 | * |
---|
| 859 | * The destroyer callbacks are used to update data structures. They are not |
---|
| 860 | * available publically, and are only used by internal functions ( in alut, |
---|
| 861 | * mostly ). |
---|
| 862 | */ |
---|
| 863 | void _alBufferDataWithCallback_LOKI( ALuint bid, |
---|
| 864 | int (*callback)( ALuint sid, |
---|
| 865 | ALuint bid, |
---|
| 866 | ALshort *outdata, |
---|
| 867 | ALenum format, |
---|
| 868 | ALint freq, |
---|
| 869 | ALint samples ), |
---|
| 870 | DestroyCallback_LOKI d_sid, |
---|
| 871 | DestroyCallback_LOKI d_bid ) { |
---|
| 872 | AL_buffer *buf; |
---|
| 873 | |
---|
| 874 | _alLockBuffer(); |
---|
| 875 | buf = _alGetBuffer( bid ); |
---|
| 876 | |
---|
| 877 | if(buf == NULL) { |
---|
| 878 | /* bid was invalid */ |
---|
| 879 | _alDebug(ALD_BUFFER, __FILE__, __LINE__, |
---|
| 880 | "Invalid buffer id %d", bid); |
---|
| 881 | |
---|
| 882 | _alcDCLockContext(); |
---|
| 883 | _alDCSetError( AL_INVALID_NAME ); |
---|
| 884 | _alcDCUnlockContext(); |
---|
| 885 | |
---|
| 886 | _alUnlockBuffer(); |
---|
| 887 | |
---|
| 888 | return; |
---|
| 889 | } |
---|
| 890 | |
---|
| 891 | _alBufferFreeOrigBuffers(buf); |
---|
| 892 | |
---|
| 893 | |
---|
| 894 | buf->size = 0; |
---|
| 895 | buf->callback = callback; |
---|
| 896 | buf->flags |= ALB_CALLBACK; |
---|
| 897 | |
---|
| 898 | buf->destroy_buffer_callback = d_bid; |
---|
| 899 | buf->destroy_source_callback = d_sid; |
---|
| 900 | |
---|
| 901 | _alUnlockBuffer(); |
---|
| 902 | |
---|
| 903 | return; |
---|
| 904 | } |
---|
| 905 | |
---|
| 906 | /* |
---|
| 907 | * _alBufferDestroyCallbackBuffer( AL_buffer *buf ) |
---|
| 908 | * |
---|
| 909 | * Executes the buffer completion callback associated with buf, if there is |
---|
| 910 | * one. |
---|
| 911 | * |
---|
| 912 | * assumes locked buffers |
---|
| 913 | */ |
---|
| 914 | static void _alBufferDestroyCallbackBuffer( AL_buffer *buf ) { |
---|
| 915 | if(buf == NULL) { |
---|
| 916 | return; |
---|
| 917 | } |
---|
| 918 | |
---|
| 919 | if(buf->destroy_buffer_callback != NULL) { |
---|
| 920 | buf->destroy_buffer_callback(buf->bid); |
---|
| 921 | } |
---|
| 922 | |
---|
| 923 | return; |
---|
| 924 | } |
---|
| 925 | |
---|
| 926 | /* |
---|
| 927 | * _alBidCallDestroyCallbackSource( ALuint sid ) |
---|
| 928 | * |
---|
| 929 | * Executes the source completion callback from the buffer associated with |
---|
| 930 | * sid, if there is one. |
---|
| 931 | * |
---|
| 932 | * assumes locked context |
---|
| 933 | */ |
---|
| 934 | void _alBidCallDestroyCallbackSource( ALuint sid ) { |
---|
| 935 | AL_buffer *buf; |
---|
| 936 | AL_source *src; |
---|
| 937 | ALuint *bid; |
---|
| 938 | |
---|
| 939 | src = _alDCGetSource( sid ); |
---|
| 940 | if(src == NULL) { |
---|
| 941 | return; |
---|
| 942 | } |
---|
| 943 | |
---|
| 944 | bid = _alGetSourceParam( src, AL_BUFFER ); |
---|
| 945 | if(bid == NULL) { |
---|
| 946 | return; |
---|
| 947 | } |
---|
| 948 | |
---|
| 949 | _alLockBuffer(); |
---|
| 950 | |
---|
| 951 | buf = _alGetBuffer( *bid ); |
---|
| 952 | if(buf == NULL) { |
---|
| 953 | _alUnlockBuffer(); |
---|
| 954 | return; |
---|
| 955 | } |
---|
| 956 | |
---|
| 957 | if(buf->destroy_source_callback != NULL) { |
---|
| 958 | buf->destroy_source_callback( sid ); |
---|
| 959 | } |
---|
| 960 | |
---|
| 961 | _alUnlockBuffer(); |
---|
| 962 | |
---|
| 963 | return; |
---|
| 964 | } |
---|
| 965 | |
---|
| 966 | /* |
---|
| 967 | * ALvoid *_alConvert( const ALvoid *data, |
---|
| 968 | * ALenum f_format, ALuint f_size, ALuint f_freq, |
---|
| 969 | * ALenum t_format, ALuint t_freq, ALuint *retsize, |
---|
| 970 | * ALenum should_use_passed_data); |
---|
| 971 | * |
---|
| 972 | * _alConvert takes the passed data and converts it from it's current |
---|
| 973 | * format (f_format) to the desired format (t_format), etc, returning |
---|
| 974 | * the converted data and setting retsize to the new size of the |
---|
| 975 | * converted data. The passed data must either be raw PCM data or |
---|
| 976 | * must correspond with one of the headered extension formats. |
---|
| 977 | * |
---|
| 978 | * If should_use_passed_data is set to AL_TRUE, then _alConvert will |
---|
| 979 | * attempt to do the conversion in place. Otherwise, new data will |
---|
| 980 | * be allocated for the purpose. |
---|
| 981 | * |
---|
| 982 | * Returns NULL on error. |
---|
| 983 | * |
---|
| 984 | * assumes locked buffers |
---|
| 985 | */ |
---|
| 986 | static ALvoid *_alConvert( const ALvoid *data, |
---|
| 987 | ALenum f_format, ALuint f_size, ALuint f_freq, |
---|
| 988 | ALenum t_format, ALuint t_freq, ALuint *retsize, |
---|
| 989 | ALenum should_use_passed_data ) { |
---|
| 990 | ALvoid *compressed = NULL; |
---|
| 991 | ALvoid *retval = NULL; |
---|
| 992 | acAudioCVT s16le; |
---|
| 993 | |
---|
| 994 | if((f_format == t_format) && (f_freq == t_freq)) { |
---|
| 995 | /* |
---|
| 996 | * no conversion needed. |
---|
| 997 | */ |
---|
| 998 | *retsize = f_size; |
---|
| 999 | |
---|
| 1000 | if( should_use_passed_data == AL_TRUE ) { |
---|
| 1001 | _alDebug(ALD_CONVERT, __FILE__, __LINE__, |
---|
| 1002 | "_alConvert: no conversion needed: %p", data); |
---|
| 1003 | |
---|
| 1004 | return (ALvoid *)data; |
---|
| 1005 | } |
---|
| 1006 | |
---|
| 1007 | retval = malloc( f_size ); |
---|
| 1008 | if( retval == NULL ) { |
---|
| 1009 | _alcDCLockContext(); |
---|
| 1010 | _alDCSetError( AL_OUT_OF_MEMORY ); |
---|
| 1011 | _alcDCUnlockContext(); |
---|
| 1012 | |
---|
| 1013 | return NULL; |
---|
| 1014 | } |
---|
| 1015 | |
---|
| 1016 | memcpy( retval, data, f_size ); |
---|
| 1017 | |
---|
| 1018 | return retval; |
---|
| 1019 | } |
---|
| 1020 | |
---|
| 1021 | /* |
---|
| 1022 | * Compressed auto formats like IMA_ADPCM get converted in |
---|
| 1023 | * full here. |
---|
| 1024 | */ |
---|
| 1025 | if(_al_RAWFORMAT(f_format) == AL_FALSE) { |
---|
| 1026 | ALushort acfmt; |
---|
| 1027 | ALushort achan; |
---|
| 1028 | ALushort acfreq; |
---|
| 1029 | |
---|
| 1030 | switch(f_format) { |
---|
| 1031 | case AL_FORMAT_IMA_ADPCM_MONO16_EXT: |
---|
| 1032 | case AL_FORMAT_IMA_ADPCM_STEREO16_EXT: |
---|
| 1033 | case AL_FORMAT_WAVE_EXT: |
---|
| 1034 | acLoadWAV(data, &f_size, &retval, &acfmt, &achan, &acfreq); |
---|
| 1035 | |
---|
| 1036 | f_format = _al_AC2ALFMT(acfmt, achan); |
---|
| 1037 | f_freq = acfreq; |
---|
| 1038 | break; |
---|
| 1039 | default: |
---|
| 1040 | break; |
---|
| 1041 | } |
---|
| 1042 | |
---|
| 1043 | data = compressed = retval; |
---|
| 1044 | } |
---|
| 1045 | |
---|
| 1046 | _alDebug(ALD_CONVERT, __FILE__, __LINE__, |
---|
| 1047 | "_alConvert [f_size|f_channels|f_freq] [%d|%d|%d]", |
---|
| 1048 | f_size, _alGetChannelsFromFormat(f_format), f_freq); |
---|
| 1049 | |
---|
| 1050 | if(_alGetChannelsFromFormat(f_format) != 0) { |
---|
| 1051 | _alDebug(ALD_CONVERT, __FILE__, __LINE__, |
---|
| 1052 | "_alConvert [t_channels|f_channels|t/f] [%d|%d|%d]", |
---|
| 1053 | _alGetChannelsFromFormat(t_format), |
---|
| 1054 | _alGetChannelsFromFormat(f_format), |
---|
| 1055 | _alGetChannelsFromFormat(t_format) / |
---|
| 1056 | _alGetChannelsFromFormat(f_format)); |
---|
| 1057 | } |
---|
| 1058 | |
---|
| 1059 | if(f_freq != 0) { |
---|
| 1060 | _alDebug(ALD_CONVERT, __FILE__, __LINE__, |
---|
| 1061 | "_alConvert [t_freq|f_freq|t/f] [%d|%d|%d]", |
---|
| 1062 | t_freq, f_freq, t_freq/f_freq); |
---|
| 1063 | } |
---|
| 1064 | |
---|
| 1065 | if(f_format != 0) { |
---|
| 1066 | _alDebug(ALD_CONVERT, __FILE__, __LINE__, |
---|
| 1067 | "_alConvert [t_bits|f_bits|t/f] [%d|%d|%d]", |
---|
| 1068 | _alGetBitsFromFormat(t_format), |
---|
| 1069 | _alGetBitsFromFormat(f_format), |
---|
| 1070 | (_alGetBitsFromFormat(t_format) / _alGetBitsFromFormat(f_format))); |
---|
| 1071 | } |
---|
| 1072 | |
---|
| 1073 | _alDebug(ALD_CONVERT, __FILE__, __LINE__, |
---|
| 1074 | "_alConvert f|c|s [0x%x|%d|%d] -> [0x%x|%d|%d]", |
---|
| 1075 | /* from */ |
---|
| 1076 | f_format, _alGetChannelsFromFormat(f_format), f_freq, |
---|
| 1077 | /* to */ |
---|
| 1078 | t_format, |
---|
| 1079 | _alGetChannelsFromFormat(t_format), |
---|
| 1080 | t_freq); |
---|
| 1081 | |
---|
| 1082 | if(acBuildAudioCVT(&s16le, |
---|
| 1083 | /* from */ |
---|
| 1084 | _al_AL2ACFMT(f_format), |
---|
| 1085 | _alGetChannelsFromFormat(f_format), |
---|
| 1086 | f_freq, |
---|
| 1087 | |
---|
| 1088 | /* to */ |
---|
| 1089 | _al_AL2ACFMT(t_format), |
---|
| 1090 | _alGetChannelsFromFormat(t_format), |
---|
| 1091 | t_freq) < 0) { |
---|
| 1092 | _alDebug(ALD_CONVERT, __FILE__, __LINE__, |
---|
| 1093 | "Couldn't build audio convertion data structure."); |
---|
| 1094 | |
---|
| 1095 | free(compressed); |
---|
| 1096 | |
---|
| 1097 | return NULL; |
---|
| 1098 | } |
---|
| 1099 | |
---|
| 1100 | _alDebug(ALD_CONVERT, __FILE__, __LINE__, |
---|
| 1101 | "_alConvert [len|newlen] [%d|%d]", |
---|
| 1102 | f_size, f_size * s16le.len_mult); |
---|
| 1103 | |
---|
| 1104 | if(should_use_passed_data == AL_TRUE) { |
---|
| 1105 | _alDebug(ALD_CONVERT, __FILE__, __LINE__, |
---|
| 1106 | "Converting with passed data = %p", data); |
---|
| 1107 | _alDebug(ALD_CONVERT, __FILE__, __LINE__, |
---|
| 1108 | "len_multi = %d", s16le.len_mult); |
---|
| 1109 | |
---|
| 1110 | s16le.buf = retval = (ALvoid *)data; |
---|
| 1111 | } else { |
---|
| 1112 | /* alloc space for buffer if we aren't using the original */ |
---|
| 1113 | |
---|
| 1114 | s16le.buf = retval = malloc(f_size * s16le.len_mult); |
---|
| 1115 | if(retval == NULL) { |
---|
| 1116 | _alDCSetError(AL_OUT_OF_MEMORY); |
---|
| 1117 | |
---|
| 1118 | free( compressed ); |
---|
| 1119 | return NULL; |
---|
| 1120 | } |
---|
| 1121 | memcpy(retval, data, f_size); |
---|
| 1122 | } |
---|
| 1123 | |
---|
| 1124 | s16le.len = f_size; |
---|
| 1125 | |
---|
| 1126 | if(acConvertAudio(&s16le) < 0) { |
---|
| 1127 | _alDebug( ALD_CONVERT, __FILE__, __LINE__, |
---|
| 1128 | "Couldn't execute conversion into canon."); |
---|
| 1129 | |
---|
| 1130 | free( compressed ); |
---|
| 1131 | |
---|
| 1132 | return NULL; |
---|
| 1133 | } |
---|
| 1134 | |
---|
| 1135 | /* set return size */ |
---|
| 1136 | *retsize = s16le.len_cvt; |
---|
| 1137 | |
---|
| 1138 | if( s16le.buf != compressed ) { |
---|
| 1139 | /* |
---|
| 1140 | * this comparison is false iff we are using a |
---|
| 1141 | * compressed/headered format that requires us to allocate |
---|
| 1142 | * a temporary buffer. |
---|
| 1143 | */ |
---|
| 1144 | free( compressed ); |
---|
| 1145 | } |
---|
| 1146 | |
---|
| 1147 | return s16le.buf; |
---|
| 1148 | } |
---|
| 1149 | |
---|
| 1150 | /* |
---|
| 1151 | * _alBidRemoveQueueRef( ALuint bid, ALuint sid ) |
---|
| 1152 | * |
---|
| 1153 | * removes a queue reference to the buffer named by bid. The first queue |
---|
| 1154 | * reference refering to sid will be removed. |
---|
| 1155 | * |
---|
| 1156 | */ |
---|
| 1157 | void _alBidRemoveQueueRef( ALuint bid, ALuint sid ) { |
---|
| 1158 | AL_buffer *buf; |
---|
| 1159 | |
---|
| 1160 | _alLockBuffer(); |
---|
| 1161 | |
---|
| 1162 | buf = _alGetBuffer( bid ); |
---|
| 1163 | if( buf == NULL ) { |
---|
| 1164 | /* invalid name */ |
---|
| 1165 | _alUnlockBuffer(); |
---|
| 1166 | return; |
---|
| 1167 | } |
---|
| 1168 | |
---|
| 1169 | _alBufferRemoveQueueRef( buf, sid ); |
---|
| 1170 | |
---|
| 1171 | if( buf->flags & ALB_PENDING_DELETE ) { |
---|
| 1172 | /* do deffered deletion */ |
---|
| 1173 | if( _alGetBidState(bid) == AL_UNUSED ) { |
---|
| 1174 | bpool_dealloc(&buf_pool, bid, _alDestroyBuffer); |
---|
| 1175 | } |
---|
| 1176 | } |
---|
| 1177 | |
---|
| 1178 | _alUnlockBuffer(); |
---|
| 1179 | |
---|
| 1180 | return; |
---|
| 1181 | } |
---|
| 1182 | |
---|
| 1183 | /* |
---|
| 1184 | * _alBidRemoveCurrentRef( ALuint bid, ALuint sid ) |
---|
| 1185 | * |
---|
| 1186 | * removes a current reference to the buffer named by bid. The first current |
---|
| 1187 | * reference refering to sid will be removed. |
---|
| 1188 | */ |
---|
| 1189 | void _alBidRemoveCurrentRef(ALuint bid, ALuint sid) { |
---|
| 1190 | AL_buffer *buf; |
---|
| 1191 | |
---|
| 1192 | _alLockBuffer(); |
---|
| 1193 | |
---|
| 1194 | buf = _alGetBuffer(bid); |
---|
| 1195 | if(buf == NULL) { |
---|
| 1196 | /* invalid name */ |
---|
| 1197 | _alUnlockBuffer(); |
---|
| 1198 | return; |
---|
| 1199 | } |
---|
| 1200 | |
---|
| 1201 | _alBufferRemoveCurrentRef( buf, sid ); |
---|
| 1202 | |
---|
| 1203 | if( buf->flags & ALB_PENDING_DELETE ) { |
---|
| 1204 | /* do deffered deletion */ |
---|
| 1205 | if( _alGetBidState(bid) == AL_UNUSED ) { |
---|
| 1206 | bpool_dealloc(&buf_pool, bid, _alDestroyBuffer); |
---|
| 1207 | } |
---|
| 1208 | } |
---|
| 1209 | |
---|
| 1210 | _alUnlockBuffer(); |
---|
| 1211 | |
---|
| 1212 | return; |
---|
| 1213 | } |
---|
| 1214 | |
---|
| 1215 | /* |
---|
| 1216 | * _alBidAddQueueRef( ALuint bid, ALuint sid ) |
---|
| 1217 | * |
---|
| 1218 | * adds a queue reference to the buffer named by bid. The queue reference |
---|
| 1219 | * refers to the source named by sid. |
---|
| 1220 | * |
---|
| 1221 | * If no current reference is added, and this queue reference is not deleted, |
---|
| 1222 | * _alGet{Bid,Buffer}State will return AL_PENDING. |
---|
| 1223 | * |
---|
| 1224 | */ |
---|
| 1225 | void _alBidAddQueueRef(ALuint bid, ALuint sid) { |
---|
| 1226 | AL_buffer *buf; |
---|
| 1227 | |
---|
| 1228 | _alLockBuffer(); |
---|
| 1229 | |
---|
| 1230 | buf = _alGetBuffer( bid ); |
---|
| 1231 | if(buf == NULL) { |
---|
| 1232 | /* invalid name, set error elsewhere? */ |
---|
| 1233 | _alUnlockBuffer(); |
---|
| 1234 | |
---|
| 1235 | return; |
---|
| 1236 | } |
---|
| 1237 | |
---|
| 1238 | _alBufferAddQueueRef( buf, sid ); |
---|
| 1239 | |
---|
| 1240 | _alUnlockBuffer(); |
---|
| 1241 | |
---|
| 1242 | return; |
---|
| 1243 | } |
---|
| 1244 | |
---|
| 1245 | /* |
---|
| 1246 | * _alBidAddCurrentRef( ALuint bid, ALuint sid ) |
---|
| 1247 | * |
---|
| 1248 | * adds a current reference to the buffer named by bid. The reference refers |
---|
| 1249 | * to the source named by sid. |
---|
| 1250 | * |
---|
| 1251 | * If this reference is not removed, _alGet{Bid,Buffer}state will return |
---|
| 1252 | * AL_PROCESSED. |
---|
| 1253 | */ |
---|
| 1254 | void _alBidAddCurrentRef( ALuint bid, ALuint sid ) { |
---|
| 1255 | AL_buffer *buf; |
---|
| 1256 | |
---|
| 1257 | _alLockBuffer(); |
---|
| 1258 | |
---|
| 1259 | buf = _alGetBuffer( bid ); |
---|
| 1260 | if(buf == NULL) { |
---|
| 1261 | /* invalid name */ |
---|
| 1262 | _alUnlockBuffer(); |
---|
| 1263 | return; |
---|
| 1264 | } |
---|
| 1265 | |
---|
| 1266 | _alBufferAddCurrentRef( buf, sid ); |
---|
| 1267 | |
---|
| 1268 | _alUnlockBuffer(); |
---|
| 1269 | |
---|
| 1270 | return; |
---|
| 1271 | } |
---|
| 1272 | |
---|
| 1273 | /* |
---|
| 1274 | * _alBufferAddQueueRef( AL_buffer *buf, ALuint sid ) |
---|
| 1275 | * |
---|
| 1276 | * adds a queue reference to the AL_buffer *buf. The queue reference refers |
---|
| 1277 | * to the source named by sid. |
---|
| 1278 | * |
---|
| 1279 | * If no current reference is added, and this queue reference is not deleted, |
---|
| 1280 | * _alGet{Bid,Buffer}State will return AL_PENDING. |
---|
| 1281 | * |
---|
| 1282 | * assumes locked context, buffers |
---|
| 1283 | */ |
---|
| 1284 | static void _alBufferAddQueueRef( AL_buffer *buf, ALuint sid ) { |
---|
| 1285 | ALvoid *temp; |
---|
| 1286 | ALuint newsize = buf->queue_list.size; |
---|
| 1287 | |
---|
| 1288 | if(buf->queue_list.size <= buf->queue_list.items) { |
---|
| 1289 | /* resize */ |
---|
| 1290 | newsize *= 2; |
---|
| 1291 | newsize += 1; |
---|
| 1292 | temp = realloc(buf->queue_list.sids, newsize * sizeof *buf->queue_list.sids); |
---|
| 1293 | if(temp == NULL) { |
---|
| 1294 | /* well la-di-da */ |
---|
| 1295 | return; |
---|
| 1296 | } |
---|
| 1297 | |
---|
| 1298 | buf->queue_list.sids = temp; |
---|
| 1299 | buf->queue_list.size = newsize; |
---|
| 1300 | } |
---|
| 1301 | |
---|
| 1302 | buf->queue_list.sids[buf->queue_list.items++] = sid; |
---|
| 1303 | |
---|
| 1304 | return; |
---|
| 1305 | } |
---|
| 1306 | |
---|
| 1307 | /* |
---|
| 1308 | * _alBufferAddCurrentRef( AL_buffer *buf, ALuint sid ) |
---|
| 1309 | * |
---|
| 1310 | * adds a current reference to the AL_buffer *buf. The current reference refers |
---|
| 1311 | * to the source named by sid. |
---|
| 1312 | * |
---|
| 1313 | * If this current reference is not removed, _alGet{Bid,Buffer}State will |
---|
| 1314 | * return AL_PENDING. |
---|
| 1315 | * |
---|
| 1316 | * assumes locked context, buffers |
---|
| 1317 | */ |
---|
| 1318 | static void _alBufferAddCurrentRef( AL_buffer *buf, ALuint sid ) { |
---|
| 1319 | ALvoid *temp; |
---|
| 1320 | ALuint newsize = buf->current_list.size; |
---|
| 1321 | |
---|
| 1322 | if( buf->current_list.size <= buf->current_list.items ) { |
---|
| 1323 | /* resize */ |
---|
| 1324 | newsize *= 2; |
---|
| 1325 | newsize += 1; |
---|
| 1326 | |
---|
| 1327 | temp = realloc( buf->current_list.sids, newsize * sizeof *buf->current_list.sids ); |
---|
| 1328 | if(temp == NULL) { |
---|
| 1329 | /* well la-di-da */ |
---|
| 1330 | return; |
---|
| 1331 | } |
---|
| 1332 | |
---|
| 1333 | buf->current_list.sids = temp; |
---|
| 1334 | buf->current_list.size = newsize; |
---|
| 1335 | } |
---|
| 1336 | |
---|
| 1337 | buf->current_list.sids[buf->current_list.items++] = sid; |
---|
| 1338 | |
---|
| 1339 | return; |
---|
| 1340 | } |
---|
| 1341 | |
---|
| 1342 | /* |
---|
| 1343 | * _alBufferRemoveQueueRef( AL_buffer *buf, ALuint sid ) |
---|
| 1344 | * |
---|
| 1345 | * removes the first queue reference from the AL_buffer *buf that refers to |
---|
| 1346 | * sid. |
---|
| 1347 | * |
---|
| 1348 | * assumes locked context, buffer |
---|
| 1349 | */ |
---|
| 1350 | static void _alBufferRemoveQueueRef( AL_buffer *buf, ALuint sid ) { |
---|
| 1351 | ALuint i; |
---|
| 1352 | |
---|
| 1353 | for(i = 0; i < buf->queue_list.items; i++) { |
---|
| 1354 | if(buf->queue_list.sids[i] == sid) { |
---|
| 1355 | buf->queue_list.items--; |
---|
| 1356 | buf->queue_list.sids[i] = buf->queue_list.sids[buf->queue_list.items]; |
---|
| 1357 | |
---|
| 1358 | return; |
---|
| 1359 | } |
---|
| 1360 | } |
---|
| 1361 | |
---|
| 1362 | return; |
---|
| 1363 | } |
---|
| 1364 | |
---|
| 1365 | /* |
---|
| 1366 | * _alBufferRemoveCurrentRef( AL_buffer *buf, ALuint sid ) |
---|
| 1367 | * |
---|
| 1368 | * removes the first current reference from the AL_buffer *buf that refers to |
---|
| 1369 | * sid. |
---|
| 1370 | * |
---|
| 1371 | * assumes locked context, buffers |
---|
| 1372 | */ |
---|
| 1373 | static void _alBufferRemoveCurrentRef( AL_buffer *buf, ALuint sid ) { |
---|
| 1374 | ALuint i; |
---|
| 1375 | |
---|
| 1376 | for(i = 0; i < buf->current_list.items; i++) { |
---|
| 1377 | if(buf->current_list.sids[i] == sid) { |
---|
| 1378 | buf->current_list.items--; |
---|
| 1379 | buf->current_list.sids[i] = buf->current_list.sids[buf->current_list.items]; |
---|
| 1380 | |
---|
| 1381 | return; |
---|
| 1382 | } |
---|
| 1383 | } |
---|
| 1384 | |
---|
| 1385 | return; |
---|
| 1386 | } |
---|
| 1387 | |
---|
| 1388 | /* |
---|
| 1389 | * _alGetBidState( ALuint bid ) |
---|
| 1390 | * |
---|
| 1391 | * Returns the state (one of AL_UNUSED, AL_PROCESSED, AL_PENDING) associated |
---|
| 1392 | * with a buffer. |
---|
| 1393 | * |
---|
| 1394 | * assumes locked buffers |
---|
| 1395 | */ |
---|
| 1396 | ALenum _alGetBidState( ALuint bid ) { |
---|
| 1397 | ALenum retval = AL_UNUSED; |
---|
| 1398 | AL_buffer *buf; |
---|
| 1399 | |
---|
| 1400 | buf = _alGetBuffer( bid ); |
---|
| 1401 | if(buf != NULL) { |
---|
| 1402 | retval = _alGetBufferState( buf ); |
---|
| 1403 | } |
---|
| 1404 | |
---|
| 1405 | return retval; |
---|
| 1406 | } |
---|
| 1407 | |
---|
| 1408 | /* |
---|
| 1409 | * _alGetBufferState( AL_buffer *buffer ) |
---|
| 1410 | * |
---|
| 1411 | * Returns the state associated with the AL_buffer *buffer. If there is even |
---|
| 1412 | * one current ref, AL_PROCESED is returned. If there are no current |
---|
| 1413 | * references and one queued ref, AL_PENDING is returned. If there are no |
---|
| 1414 | * current or queued references, AL_UNUSED is returned. |
---|
| 1415 | * |
---|
| 1416 | * assumes locked buffers. |
---|
| 1417 | */ |
---|
| 1418 | ALenum _alGetBufferState( AL_buffer *buffer ) |
---|
| 1419 | { |
---|
| 1420 | if(buffer->current_list.items > 0) |
---|
| 1421 | { |
---|
| 1422 | return AL_PROCESSED; |
---|
| 1423 | } |
---|
| 1424 | |
---|
| 1425 | if(buffer->queue_list.items > 0) |
---|
| 1426 | { |
---|
| 1427 | return AL_PENDING; |
---|
| 1428 | } |
---|
| 1429 | |
---|
| 1430 | return AL_UNUSED; |
---|
| 1431 | } |
---|
| 1432 | |
---|
| 1433 | |
---|
| 1434 | void _alBufferFreeOrigBuffers(AL_buffer *buf) |
---|
| 1435 | { |
---|
| 1436 | ALuint i, j; |
---|
| 1437 | ALvoid *temp; |
---|
| 1438 | |
---|
| 1439 | /* sort */ |
---|
| 1440 | for(i = 0; i < elementsof(buf->orig_buffers); i++) |
---|
| 1441 | { |
---|
| 1442 | for(j = i+1; j < elementsof(buf->orig_buffers); j++) |
---|
| 1443 | { |
---|
| 1444 | if(buf->orig_buffers[i] > buf->orig_buffers[j]) |
---|
| 1445 | { |
---|
| 1446 | temp = buf->orig_buffers[i]; |
---|
| 1447 | buf->orig_buffers[i] = buf->orig_buffers[j]; |
---|
| 1448 | buf->orig_buffers[j] = temp; |
---|
| 1449 | } |
---|
| 1450 | } |
---|
| 1451 | } |
---|
| 1452 | |
---|
| 1453 | /* uniq */ |
---|
| 1454 | for(i = 0; i < elementsof(buf->orig_buffers) - 1; i++) |
---|
| 1455 | { |
---|
| 1456 | if(buf->orig_buffers[i] == buf->orig_buffers[i+1]) |
---|
| 1457 | { |
---|
| 1458 | buf->orig_buffers[i] = NULL; |
---|
| 1459 | } |
---|
| 1460 | } |
---|
| 1461 | |
---|
| 1462 | |
---|
| 1463 | /* free */ |
---|
| 1464 | for(i = 0; i < elementsof(buf->orig_buffers); i++) |
---|
| 1465 | { |
---|
| 1466 | free(buf->orig_buffers[i]); |
---|
| 1467 | buf->orig_buffers[i] = NULL; |
---|
| 1468 | } |
---|
| 1469 | } |
---|
| 1470 | |
---|
| 1471 | /* binary compatibility function */ |
---|
| 1472 | ALsizei alBufferAppendData( ALuint buffer, |
---|
| 1473 | ALenum format, |
---|
| 1474 | void* data, |
---|
| 1475 | ALsizei osamps, |
---|
| 1476 | ALsizei freq) { |
---|
| 1477 | return alBufferAppendData_LOKI(buffer, format, data, osamps, freq); |
---|
| 1478 | } |
---|
| 1479 | |
---|
| 1480 | #define MAX_BUFFER_NUM_VALUES 1 |
---|
| 1481 | |
---|
| 1482 | static ALint |
---|
| 1483 | numValuesForAttribute( ALenum param ) |
---|
| 1484 | { |
---|
| 1485 | switch (param) { |
---|
| 1486 | case AL_FREQUENCY: |
---|
| 1487 | case AL_SIZE: |
---|
| 1488 | case AL_BITS: |
---|
| 1489 | case AL_CHANNELS: |
---|
| 1490 | return 1; |
---|
| 1491 | default: |
---|
| 1492 | return 0; |
---|
| 1493 | } |
---|
| 1494 | } |
---|
| 1495 | |
---|
| 1496 | static void |
---|
| 1497 | setBufferAttributef( ALuint bid, ALenum param, const ALfloat *values, ALint numValues) |
---|
| 1498 | { |
---|
| 1499 | _alLockBuffer(); |
---|
| 1500 | |
---|
| 1501 | if (!alIsBuffer(bid)) { |
---|
| 1502 | _alcDCLockContext(); |
---|
| 1503 | _alDCSetError( AL_INVALID_NAME ); |
---|
| 1504 | _alcDCUnlockContext(); |
---|
| 1505 | _alUnlockBuffer(); |
---|
| 1506 | return; |
---|
| 1507 | } |
---|
| 1508 | |
---|
| 1509 | if (numValues != numValuesForAttribute(param)) { |
---|
| 1510 | _alcDCLockContext(); |
---|
| 1511 | _alDCSetError(AL_INVALID_ENUM); |
---|
| 1512 | _alcDCUnlockContext(); |
---|
| 1513 | _alUnlockBuffer(); |
---|
| 1514 | return; |
---|
| 1515 | } |
---|
| 1516 | |
---|
| 1517 | if( values == NULL ) { |
---|
| 1518 | _alcDCLockContext(); |
---|
| 1519 | _alDCSetError(AL_INVALID_VALUE); |
---|
| 1520 | _alcDCUnlockContext(); |
---|
| 1521 | _alUnlockBuffer(); |
---|
| 1522 | return; |
---|
| 1523 | } |
---|
| 1524 | |
---|
| 1525 | switch (param) { |
---|
| 1526 | default: |
---|
| 1527 | _alcDCLockContext(); |
---|
| 1528 | _alDCSetError( AL_INVALID_ENUM ); |
---|
| 1529 | _alcDCUnlockContext(); |
---|
| 1530 | break; |
---|
| 1531 | } |
---|
| 1532 | |
---|
| 1533 | _alUnlockBuffer(); |
---|
| 1534 | } |
---|
| 1535 | |
---|
| 1536 | static void |
---|
| 1537 | setBufferAttributei( ALuint bid, ALenum param, const ALint *intValues, ALint numValues) |
---|
| 1538 | { |
---|
| 1539 | ALfloat floatValues[MAX_BUFFER_NUM_VALUES]; |
---|
| 1540 | int i; |
---|
| 1541 | for (i = 0; i < numValues; i++) { |
---|
| 1542 | floatValues[i] = (ALfloat)intValues[i]; |
---|
| 1543 | } |
---|
| 1544 | setBufferAttributef(bid, param, floatValues, numValues); |
---|
| 1545 | } |
---|
| 1546 | |
---|
| 1547 | void |
---|
| 1548 | alBufferf( ALuint bid, ALenum param, ALfloat value ) |
---|
| 1549 | { |
---|
| 1550 | setBufferAttributef(bid, param, &value, 1); |
---|
| 1551 | } |
---|
| 1552 | |
---|
| 1553 | void |
---|
| 1554 | alBuffer3f( ALuint bid, ALenum param, ALfloat value1, ALfloat value2, ALfloat value3 ) |
---|
| 1555 | { |
---|
| 1556 | ALfloat values[3]; |
---|
| 1557 | values[0] = value1; |
---|
| 1558 | values[1] = value2; |
---|
| 1559 | values[2] = value3; |
---|
| 1560 | setBufferAttributef(bid, param, values, 3); |
---|
| 1561 | } |
---|
| 1562 | |
---|
| 1563 | void |
---|
| 1564 | alBufferfv( ALuint bid, ALenum param, const ALfloat *values ) |
---|
| 1565 | { |
---|
| 1566 | setBufferAttributef(bid, param, values, numValuesForAttribute(param)); |
---|
| 1567 | } |
---|
| 1568 | |
---|
| 1569 | void |
---|
| 1570 | alBufferi( ALuint bid, ALenum param, ALint value ) |
---|
| 1571 | { |
---|
| 1572 | setBufferAttributei(bid, param, &value, 1); |
---|
| 1573 | } |
---|
| 1574 | |
---|
| 1575 | void |
---|
| 1576 | alBuffer3i( ALuint bid, ALenum param, ALint value1, ALint value2, ALint value3 ) |
---|
| 1577 | { |
---|
| 1578 | ALint values[3]; |
---|
| 1579 | values[0] = value1; |
---|
| 1580 | values[1] = value2; |
---|
| 1581 | values[2] = value3; |
---|
| 1582 | setBufferAttributei(bid, param, values, 3); |
---|
| 1583 | } |
---|
| 1584 | |
---|
| 1585 | void |
---|
| 1586 | alBufferiv( ALuint bid, ALenum param, const ALint *values ) |
---|
| 1587 | { |
---|
| 1588 | setBufferAttributei(bid, param, values, numValuesForAttribute(param)); |
---|
| 1589 | } |
---|
| 1590 | |
---|
| 1591 | static ALboolean |
---|
| 1592 | getBufferAttribute( ALuint bid, ALenum param, ALfloat *values, ALint numValues ) |
---|
| 1593 | { |
---|
| 1594 | ALboolean ok = AL_FALSE; |
---|
| 1595 | AL_buffer *buf; |
---|
| 1596 | |
---|
| 1597 | _alLockBuffer(); |
---|
| 1598 | |
---|
| 1599 | buf = _alGetBuffer(bid); |
---|
| 1600 | if (buf == NULL) { |
---|
| 1601 | _alcDCLockContext(); |
---|
| 1602 | _alDCSetError( AL_INVALID_NAME ); |
---|
| 1603 | _alcDCUnlockContext(); |
---|
| 1604 | _alUnlockBuffer(); |
---|
| 1605 | return ok; |
---|
| 1606 | } |
---|
| 1607 | |
---|
| 1608 | if (numValues != numValuesForAttribute(param)) { |
---|
| 1609 | _alcDCLockContext(); |
---|
| 1610 | _alDCSetError(AL_INVALID_ENUM); |
---|
| 1611 | _alcDCUnlockContext(); |
---|
| 1612 | _alUnlockBuffer(); |
---|
| 1613 | return ok; |
---|
| 1614 | } |
---|
| 1615 | |
---|
| 1616 | if( values == NULL ) { |
---|
| 1617 | _alcDCLockContext(); |
---|
| 1618 | _alDCSetError(AL_INVALID_VALUE); |
---|
| 1619 | _alcDCUnlockContext(); |
---|
| 1620 | _alUnlockBuffer(); |
---|
| 1621 | return ok; |
---|
| 1622 | } |
---|
| 1623 | |
---|
| 1624 | switch( param ) { |
---|
| 1625 | |
---|
| 1626 | case AL_FREQUENCY: |
---|
| 1627 | values[0] = (ALfloat)buf->frequency; |
---|
| 1628 | ok = AL_TRUE; |
---|
| 1629 | break; |
---|
| 1630 | |
---|
| 1631 | case AL_SIZE: |
---|
| 1632 | values[0] = (ALfloat)buf->size; |
---|
| 1633 | ok = AL_TRUE; |
---|
| 1634 | break; |
---|
| 1635 | |
---|
| 1636 | case AL_BITS: |
---|
| 1637 | values[0] = _alGetBitsFromFormat( buf->format ); |
---|
| 1638 | ok = AL_TRUE; |
---|
| 1639 | break; |
---|
| 1640 | |
---|
| 1641 | case AL_CHANNELS: |
---|
| 1642 | values[0] = _alGetChannelsFromFormat( buf->format ); |
---|
| 1643 | ok = AL_TRUE; |
---|
| 1644 | break; |
---|
| 1645 | |
---|
| 1646 | default: |
---|
| 1647 | _alcDCLockContext(); |
---|
| 1648 | _alDCSetError( AL_INVALID_ENUM ); |
---|
| 1649 | _alcDCUnlockContext(); |
---|
| 1650 | break; |
---|
| 1651 | } |
---|
| 1652 | |
---|
| 1653 | _alUnlockBuffer(); |
---|
| 1654 | return ok; |
---|
| 1655 | } |
---|
| 1656 | |
---|
| 1657 | void |
---|
| 1658 | alGetBufferf( ALuint bid, ALenum param, ALfloat *value ) |
---|
| 1659 | { |
---|
| 1660 | getBufferAttribute(bid, param, value, 1); |
---|
| 1661 | } |
---|
| 1662 | |
---|
| 1663 | void |
---|
| 1664 | alGetBuffer3f( ALuint bid, ALenum param, ALfloat *value1, ALfloat *value2, ALfloat *value3) |
---|
| 1665 | { |
---|
| 1666 | ALfloat floatValues[3]; |
---|
| 1667 | if (getBufferAttribute(bid, param, floatValues, 3)) { |
---|
| 1668 | *value1 = floatValues[0]; |
---|
| 1669 | *value2 = floatValues[1]; |
---|
| 1670 | *value3 = floatValues[2]; |
---|
| 1671 | } |
---|
| 1672 | } |
---|
| 1673 | |
---|
| 1674 | void |
---|
| 1675 | alGetBufferfv( ALuint bid, ALenum param, ALfloat *values ) |
---|
| 1676 | { |
---|
| 1677 | getBufferAttribute(bid, param, values, numValuesForAttribute(param)); |
---|
| 1678 | } |
---|
| 1679 | |
---|
| 1680 | void |
---|
| 1681 | alGetBufferi( ALuint bid, ALenum param, ALint *value ) |
---|
| 1682 | { |
---|
| 1683 | ALfloat floatValues[1]; |
---|
| 1684 | if (getBufferAttribute(bid, param, floatValues, 1)) { |
---|
| 1685 | *value = floatValues[0]; |
---|
| 1686 | } |
---|
| 1687 | } |
---|
| 1688 | |
---|
| 1689 | void |
---|
| 1690 | alGetBuffer3i( ALuint bid, ALenum param, ALint *value1, ALint *value2, ALint *value3) |
---|
| 1691 | { |
---|
| 1692 | ALfloat floatValues[3]; |
---|
| 1693 | if (getBufferAttribute(bid, param, floatValues, 3)) { |
---|
| 1694 | *value1 = (ALint)floatValues[0]; |
---|
| 1695 | *value2 = (ALint)floatValues[1]; |
---|
| 1696 | *value3 = (ALint)floatValues[2]; |
---|
| 1697 | } |
---|
| 1698 | } |
---|
| 1699 | |
---|
| 1700 | void |
---|
| 1701 | alGetBufferiv( ALuint bid, ALenum param, ALint *values ) |
---|
| 1702 | { |
---|
| 1703 | ALfloat floatValues[MAX_BUFFER_NUM_VALUES]; |
---|
| 1704 | int i; |
---|
| 1705 | int n = numValuesForAttribute(param); |
---|
| 1706 | if (getBufferAttribute(bid, param, floatValues, n)) { |
---|
| 1707 | for (i = 0; i < n; i++) { |
---|
| 1708 | values[i] = (ALint)floatValues[i]; |
---|
| 1709 | } |
---|
| 1710 | } |
---|
| 1711 | } |
---|