audio/null/null_multi.c

49 get_description(void* cookie, multi_description* data)
55 	if (user_memcpy(&description, data, sizeof(multi_description)) != B_OK) {
86 	if (user_memcpy(data, &description, sizeof(multi_description)) != B_OK)
90 		if (user_memcpy(data->channels,
100 get_enabled_channels(void* cookie, multi_channel_enable* data)
105 	B_SET_CHANNEL(data->enable_bits, 0, true);
106 	B_SET_CHANNEL(data->enable_bits, 1, true);
107 	B_SET_CHANNEL(data->enable_bits, 2, true);
108 	B_SET_CHANNEL(data->enable_bits, 3, true);
114 set_global_format(device_t* device, multi_format_info* data)
119 	device->playback_stream.format = data->output.format;
120 	device->playback_stream.rate = data->output.rate;
122 	device->record_stream.format = data->input.format;
123 	device->record_stream.rate = data->input.rate;
130 get_global_format(device_t* device, multi_format_info* data)
135 	data->output_latency = 30;
136 	data->input_latency = 30;
137 	data->timecode_kind = 0;
139 	data->output.format = device->playback_stream.format;
140 	data->output.rate = device->playback_stream.rate;
141 	data->input.format = device->record_stream.format;
142 	data->input.rate = device->record_stream.rate;
165 list_mix_controls(device_t* device, multi_mix_control_info * data)
169 	create_group_control(data->controls + 0, 0, 0, 0, "Record");
170 	create_group_control(data->controls + 1, 1, 0, 0, "Playback");
171 	data->control_count = 2;
194 get_buffers(device_t* device, multi_buffer_list* data)
207 	if (data->request_playback_buffers > STRMAXBUF || data->request_playback_buffers < STRMINBUF)
208 		data->request_playback_buffers = STRMINBUF;
210 	if (data->request_record_buffers > STRMAXBUF || data->request_record_buffers < STRMINBUF)
211 		data->request_record_buffers = STRMINBUF;
213 	if (data->request_playback_buffer_size == 0)
214 		data->request_playback_buffer_size = FRAMES_PER_BUFFER;
216 	if (data->request_record_buffer_size == 0)
217 		data->request_record_buffer_size = FRAMES_PER_BUFFER;
222 	data->flags = 0;
226 	device->playback_stream.num_buffers = data->request_playback_buffers;
227 	device->playback_stream.num_channels = data->request_playback_channels;
228 	device->playback_stream.buffer_length = data->request_playback_buffer_size;
237 	device->record_stream.num_buffers = data->request_record_buffers;
238 	device->record_stream.num_channels = data->request_record_channels;
239 	device->record_stream.buffer_length = data->request_record_buffer_size;
248 	/* Setup data structure for multi_audio API... */
249 	data->return_playback_buffers = data->request_playback_buffers;
250 	data->return_playback_channels = data->request_playback_channels;
251 	data->return_playback_buffer_size = data->request_playback_buffer_size;
253 	for (bidx = 0; bidx < data->return_playback_buffers; bidx++) {
254 		for (cidx = 0; cidx < data->return_playback_channels; cidx++) {
255 			data->playback_buffers[bidx][cidx].base
257 			data->playback_buffers[bidx][cidx].stride
258 				= playback_sample_size * data->return_playback_channels;
262 	data->return_record_buffers = data->request_record_buffers;
263 	data->return_record_channels = data->request_record_channels;
264 	data->return_record_buffer_size = data->request_record_buffer_size;
266 	for (bidx = 0; bidx < data->return_record_buffers; bidx++) {
267 		for (cidx = 0; cidx < data->return_record_channels; cidx++) {
268 			data->record_buffers[bidx][cidx].base
270 			data->record_buffers[bidx][cidx].stride
271 				= record_sample_size * data->return_record_channels;