From 41f6aea8fdbc744c13bc461056a2d694a5c4d06f Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Sat, 17 Jul 2004 14:12:30 +0000 Subject: rename src to polyp git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@90 fefdeb5f-60dc-0310-8127-8f9354f1896f --- src/module-oss-mmap.c | 404 -------------------------------------------------- 1 file changed, 404 deletions(-) delete mode 100644 src/module-oss-mmap.c (limited to 'src/module-oss-mmap.c') diff --git a/src/module-oss-mmap.c b/src/module-oss-mmap.c deleted file mode 100644 index 800eaf25..00000000 --- a/src/module-oss-mmap.c +++ /dev/null @@ -1,404 +0,0 @@ -/* $Id$ */ - -/*** - This file is part of polypaudio. - - polypaudio is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published - by the Free Software Foundation; either version 2 of the License, - or (at your option) any later version. - - polypaudio is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public License - along with polypaudio; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 - USA. -***/ - -#ifdef HAVE_CONFIG_H -#include -#endif - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "iochannel.h" -#include "sink.h" -#include "source.h" -#include "module.h" -#include "oss-util.h" -#include "sample-util.h" -#include "util.h" -#include "modargs.h" - -struct userdata { - struct pa_sink *sink; - struct pa_source *source; - struct pa_core *core; - struct pa_sample_spec sample_spec; - - size_t in_fragment_size, out_fragment_size, in_fragments, out_fragments, out_fill; - - int fd; - - void *in_mmap, *out_mmap; - size_t in_mmap_length, out_mmap_length; - - void *mainloop_source; - - struct pa_memblock **in_memblocks, **out_memblocks; - unsigned out_current, in_current; -}; - -static const char* const valid_modargs[] = { - "sink_name", - "source_name", - "device", - "record", - "playback", - "fragments", - "fragment_size", - "format", - "rate", - "channels", - NULL -}; - -#define DEFAULT_SINK_NAME "oss_output" -#define DEFAULT_SOURCE_NAME "oss_input" -#define DEFAULT_DEVICE "/dev/dsp" - -static void out_fill_memblocks(struct userdata *u, unsigned n) { - assert(u && u->out_memblocks); - - while (n > 0) { - struct pa_memchunk chunk; - - if (u->out_memblocks[u->out_current]) - pa_memblock_unref_fixed(u->out_memblocks[u->out_current]); - - chunk.memblock = u->out_memblocks[u->out_current] = pa_memblock_new_fixed(u->out_mmap+u->out_fragment_size*u->out_current, u->out_fragment_size); - assert(chunk.memblock); - chunk.length = chunk.memblock->length; - chunk.index = 0; - - pa_sink_render_into_full(u->sink, &chunk); - - u->out_current++; - while (u->out_current >= u->out_fragments) - u->out_current -= u->out_fragments; - - n--; - } -} - -static void do_write(struct userdata *u) { - struct count_info info; - assert(u && u->sink); - - if (ioctl(u->fd, SNDCTL_DSP_GETOPTR, &info) < 0) { - fprintf(stderr, "SNDCTL_DSP_GETOPTR: %s\n", strerror(errno)); - return; - } - - u->out_fill = (u->out_fragment_size * u->out_fragments) - (info.ptr % u->out_fragment_size); - - if (!info.blocks) - return; - - out_fill_memblocks(u, info.blocks); -} - -static void in_post_memblocks(struct userdata *u, unsigned n) { - assert(u && u->in_memblocks); - - while (n > 0) { - struct pa_memchunk chunk; - - if (!u->in_memblocks[u->in_current]) { - chunk.memblock = u->in_memblocks[u->in_current] = pa_memblock_new_fixed(u->in_mmap+u->in_fragment_size*u->in_current, u->in_fragment_size); - chunk.length = chunk.memblock->length; - chunk.index = 0; - - pa_source_post(u->source, &chunk); - } - - u->in_current++; - while (u->in_current >= u->in_fragments) - u->in_current -= u->in_fragments; - - n--; - } -} - -static void in_clear_memblocks(struct userdata*u, unsigned n) { - unsigned i = u->in_current; - assert(u && u->in_memblocks); - - if (n > u->in_fragments) - n = u->in_fragments; - - while (n > 0) { - if (u->in_memblocks[i]) { - pa_memblock_unref_fixed(u->in_memblocks[i]); - u->in_memblocks[i] = NULL; - } - - i++; - while (i >= u->in_fragments) - i -= u->in_fragments; - - n--; - } -} - -static void do_read(struct userdata *u) { - struct count_info info; - assert(u && u->source); - - if (ioctl(u->fd, SNDCTL_DSP_GETIPTR, &info) < 0) { - fprintf(stderr, "SNDCTL_DSP_GETIPTR: %s\n", strerror(errno)); - return; - } - - if (!info.blocks) - return; - - in_post_memblocks(u, info.blocks); - in_clear_memblocks(u, u->in_fragments/2); -}; - -static void io_callback(struct pa_mainloop_api *m, void *id, int fd, enum pa_mainloop_api_io_events events, void *userdata) { - struct userdata *u = userdata; - - assert (u && u->core->mainloop == m && u->mainloop_source == id); - - if (events & PA_MAINLOOP_API_IO_EVENT_INPUT) - do_read(u); - if (events & PA_MAINLOOP_API_IO_EVENT_OUTPUT) - do_write(u); -} - -static uint32_t sink_get_latency_cb(struct pa_sink *s) { - struct userdata *u = s->userdata; - assert(s && u); - - do_write(u); - return pa_samples_usec(u->out_fill, &s->sample_spec); -} - -int pa_module_init(struct pa_core *c, struct pa_module*m) { - struct audio_buf_info info; - struct userdata *u = NULL; - const char *p; - int nfrags, frag_size; - int mode, caps; - int enable_bits = 0, zero = 0; - int playback = 1, record = 1; - struct pa_modargs *ma = NULL; - assert(c && m); - - m->userdata = u = malloc(sizeof(struct userdata)); - assert(u); - memset(u, 0, sizeof(struct userdata)); - u->fd = -1; - u->core = c; - - if (!(ma = pa_modargs_new(m->argument, valid_modargs))) { - fprintf(stderr, __FILE__": failed to parse module arguments.\n"); - goto fail; - } - - if (pa_modargs_get_value_u32(ma, "record", &record) < 0 || pa_modargs_get_value_u32(ma, "playback", &playback) < 0) { - fprintf(stderr, __FILE__": record= and playback= expect numeric arguments.\n"); - goto fail; - } - - mode = (playback&&record) ? O_RDWR : (playback ? O_WRONLY : (record ? O_RDONLY : 0)); - if (mode == 0) { - fprintf(stderr, __FILE__": neither playback nor record enabled for device.\n"); - goto fail; - } - - nfrags = 12; - frag_size = 1024; - if (pa_modargs_get_value_u32(ma, "fragments", &nfrags) < 0 || nfrags < 2 || pa_modargs_get_value_u32(ma, "fragment_size", &frag_size) < 0 || frag_size < 1) { - fprintf(stderr, __FILE__": failed to parse fragments arguments\n"); - goto fail; - } - - u->sample_spec = c->default_sample_spec; - if (pa_modargs_get_sample_spec(ma, &u->sample_spec) < 0) { - fprintf(stderr, __FILE__": failed to parse sample specification\n"); - goto fail; - } - - if ((u->fd = pa_oss_open(p = pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), &mode, &caps)) < 0) - goto fail; - - if (!(caps & DSP_CAP_MMAP) || !(caps & DSP_CAP_REALTIME) || !(caps & DSP_CAP_TRIGGER)) { - fprintf(stderr, "OSS device not mmap capable.\n"); - goto fail; - } - - fprintf(stderr, "module-oss: device opened in %s mode.\n", mode == O_WRONLY ? "O_WRONLY" : (mode == O_RDONLY ? "O_RDONLY" : "O_RDWR")); - - if (pa_oss_set_fragments(u->fd, nfrags, frag_size) < 0) - goto fail; - - if (pa_oss_auto_format(u->fd, &u->sample_spec) < 0) - goto fail; - - if (mode != O_WRONLY) { - if (ioctl(u->fd, SNDCTL_DSP_GETISPACE, &info) < 0) { - fprintf(stderr, "SNDCTL_DSP_GETISPACE: %s\n", strerror(errno)); - goto fail; - } - - fprintf(stderr, "module-oss-mmap: input -- %u fragments of size %u.\n", info.fragstotal, info.fragsize); - u->in_mmap_length = (u->in_fragment_size = info.fragsize) * (u->in_fragments = info.fragstotal); - - if ((u->in_mmap = mmap(NULL, u->in_mmap_length, PROT_READ, MAP_SHARED, u->fd, 0)) == MAP_FAILED) { - if (mode == O_RDWR) { - fprintf(stderr, "module-oss-mmap: mmap failed for input. Changing to O_WRONLY mode.\n"); - mode = O_WRONLY; - } else { - fprintf(stderr, "modeule-oss-mmap: mmap(): %s\n", strerror(errno)); - goto fail; - } - } else { - - u->source = pa_source_new(c, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME), 0, &u->sample_spec); - assert(u->source); - u->source->userdata = u; - pa_source_set_owner(u->source, m); - u->source->description = pa_sprintf_malloc("Open Sound System PCM/mmap() on '%s'", p); - - - u->in_memblocks = malloc(sizeof(struct pa_memblock *)*u->in_fragments); - memset(u->in_memblocks, 0, sizeof(struct pa_memblock *)*u->in_fragments); - - enable_bits |= PCM_ENABLE_INPUT; - } - } - - if (mode != O_RDONLY) { - if (ioctl(u->fd, SNDCTL_DSP_GETOSPACE, &info) < 0) { - fprintf(stderr, "SNDCTL_DSP_GETOSPACE: %s\n", strerror(errno)); - goto fail; - } - - fprintf(stderr, "module-oss: output -- %u fragments of size %u.\n", info.fragstotal, info.fragsize); - u->out_mmap_length = (u->out_fragment_size = info.fragsize) * (u->out_fragments = info.fragstotal); - - if ((u->out_mmap = mmap(NULL, u->out_mmap_length, PROT_WRITE, MAP_SHARED, u->fd, 0)) == MAP_FAILED) { - if (mode == O_RDWR) { - fprintf(stderr, "module-oss-mmap: mmap filed for output. Changing to O_RDONLY mode.\n"); - mode = O_RDONLY; - } else { - fprintf(stderr, "module-oss-mmap: mmap(): %s\n", strerror(errno)); - goto fail; - } - } else { - pa_silence_memory(u->out_mmap, u->out_mmap_length, &u->sample_spec); - - u->sink = pa_sink_new(c, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &u->sample_spec); - assert(u->sink); - u->sink->get_latency = sink_get_latency_cb; - u->sink->userdata = u; - pa_sink_set_owner(u->sink, m); - u->sink->description = pa_sprintf_malloc("Open Sound System PCM/mmap() on '%s'", p); - - u->out_memblocks = malloc(sizeof(struct memblock *)*u->out_fragments); - memset(u->out_memblocks, 0, sizeof(struct pa_memblock *)*u->out_fragments); - - enable_bits |= PCM_ENABLE_OUTPUT; - } - } - - zero = 0; - if (ioctl(u->fd, SNDCTL_DSP_SETTRIGGER, &zero) < 0) { - fprintf(stderr, "SNDCTL_DSP_SETTRIGGER: %s\n", strerror(errno)); - goto fail; - } - - if (ioctl(u->fd, SNDCTL_DSP_SETTRIGGER, &enable_bits) < 0) { - fprintf(stderr, "SNDCTL_DSP_SETTRIGGER: %s\n", strerror(errno)); - goto fail; - } - - assert(u->source || u->sink); - - u->mainloop_source = c->mainloop->source_io(c->mainloop, u->fd, (u->source ? PA_MAINLOOP_API_IO_EVENT_INPUT : 0) | (u->sink ? PA_MAINLOOP_API_IO_EVENT_OUTPUT : 0), io_callback, u); - assert(u->mainloop_source); - - pa_modargs_free(ma); - - return 0; - -fail: - pa_module_done(c, m); - - if (ma) - pa_modargs_free(ma); - - return -1; -} - -void pa_module_done(struct pa_core *c, struct pa_module*m) { - struct userdata *u; - assert(c && m); - - u = m->userdata; - assert(u); - - if (u->out_memblocks) { - unsigned i; - for (i = 0; i < u->out_fragments; i++) - if (u->out_memblocks[i]) - pa_memblock_unref_fixed(u->out_memblocks[i]); - free(u->out_memblocks); - } - - if (u->in_memblocks) { - unsigned i; - for (i = 0; i < u->in_fragments; i++) - if (u->in_memblocks[i]) - pa_memblock_unref_fixed(u->in_memblocks[i]); - free(u->in_memblocks); - } - - if (u->in_mmap && u->in_mmap != MAP_FAILED) - munmap(u->in_mmap, u->in_mmap_length); - - if (u->out_mmap && u->out_mmap != MAP_FAILED) - munmap(u->out_mmap, u->out_mmap_length); - - if (u->sink) - pa_sink_free(u->sink); - - if (u->source) - pa_source_free(u->source); - - if (u->mainloop_source) - u->core->mainloop->cancel_io(u->core->mainloop, u->mainloop_source); - - if (u->fd >= 0) - close(u->fd); - - free(u); -} -- cgit