pcm.c - OpenGrok cross reference for /third

Lines Matching refs:areas
36 static void generate_sine(const snd_pcm_channel_area_t *areas, 
55 	/* verify and prepare the contents of areas */
57 		if ((areas[chn].first % 8) != 0) {
58 			printf("areas[%u].first == %u, aborting...\n", chn, areas[chn].first);
61 		samples[chn] = /*(signed short *)*/(((unsigned char *)areas[chn].addr) + (areas[chn].first / 8));
62 		if ((areas[chn].step % 16) != 0) {
63 			printf("areas[%u].step == %u, aborting...\n", chn, areas[chn].step);
66 		steps[chn] = areas[chn].step / 8;
69 	/* fill the channel areas */
256 		      snd_pcm_channel_area_t *areas)
263 		generate_sine(areas, 0, period_size, &phase);
303 			       snd_pcm_channel_area_t *areas)
346 		generate_sine(areas, 0, period_size, &phase);
392 	snd_pcm_channel_area_t *areas;
401 	snd_pcm_channel_area_t *areas = data->areas;
407 		generate_sine(areas, 0, period_size, &data->phase);
423 		      snd_pcm_channel_area_t *areas)
430 	data.areas = areas;
438 		generate_sine(areas, 0, period_size, &data.phase);
544 			     snd_pcm_channel_area_t *areas ATTRIBUTE_UNUSED)
554 	data.areas = NULL;	/* we do not require the global areas for direct write */
602 		       snd_pcm_channel_area_t *areas ATTRIBUTE_UNUSED)
688 			     snd_pcm_channel_area_t *areas)
695 		generate_sine(areas, 0, period_size, &phase);
724 			     snd_pcm_channel_area_t *areas);
794 	snd_pcm_channel_area_t *areas;
911 	areas = calloc(channels, sizeof(snd_pcm_channel_area_t));
912 	if (areas == NULL) {
917 		areas[chn].addr = samples;
918 		areas[chn].first = chn * snd_pcm_format_physical_width(format);
919 		areas[chn].step = channels * snd_pcm_format_physical_width(format);
922 	err = transfer_methods[method].transfer_loop(handle, samples, areas);
926 	free(areas);