1 files changed, 257 insertions, 0 deletions
diff --git a/src/pulsecore/source.h b/src/pulsecore/source.h
new file mode 100644
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--- /dev/null
+++ b/src/pulsecore/source.h
@@ -0,0 +1,257 @@
+#ifndef foopulsesourcehfoo
+#define foopulsesourcehfoo
+
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2004-2006 Lennart Poettering
+  Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
+
+  PulseAudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as published
+  by the Free Software Foundation; either version 2 of the License,
+  or (at your option) any later version.
+
+  PulseAudio 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 Lesser General Public License
+  along with PulseAudio; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+  USA.
+***/
+
+typedef struct pa_source pa_source;
+
+#include <inttypes.h>
+
+#include <pulse/sample.h>
+#include <pulse/channelmap.h>
+#include <pulse/volume.h>
+
+#include <pulsecore/core.h>
+#include <pulsecore/idxset.h>
+#include <pulsecore/memblock.h>
+#include <pulsecore/memchunk.h>
+#include <pulsecore/sink.h>
+#include <pulsecore/module.h>
+#include <pulsecore/asyncmsgq.h>
+#include <pulsecore/msgobject.h>
+#include <pulsecore/rtpoll.h>
+#include <pulsecore/source-output.h>
+
+#define PA_MAX_OUTPUTS_PER_SOURCE 32
+
+typedef enum pa_source_state {
+    PA_SOURCE_INIT,
+    PA_SOURCE_RUNNING,
+    PA_SOURCE_SUSPENDED,
+    PA_SOURCE_IDLE,
+    PA_SOURCE_UNLINKED
+} pa_source_state_t;
+
+static inline pa_bool_t PA_SOURCE_IS_OPENED(pa_source_state_t x) {
+    return x == PA_SOURCE_RUNNING || x == PA_SOURCE_IDLE;
+}
+
+static inline pa_bool_t PA_SOURCE_IS_LINKED(pa_source_state_t x) {
+    return x == PA_SOURCE_RUNNING || x == PA_SOURCE_IDLE || x == PA_SOURCE_SUSPENDED;
+}
+
+struct pa_source {
+    pa_msgobject parent;
+
+    uint32_t index;
+    pa_core *core;
+    pa_source_state_t state;
+    pa_source_flags_t flags;
+
+    char *name;
+    char *driver;                             /* may be NULL */
+    pa_proplist *proplist;
+
+    pa_module *module;                        /* may be NULL */
+
+    pa_sample_spec sample_spec;
+    pa_channel_map channel_map;
+
+    pa_idxset *outputs;
+    unsigned n_corked;
+    pa_sink *monitor_of;                     /* may be NULL */
+
+    pa_cvolume volume;
+    pa_bool_t muted;
+
+    pa_bool_t refresh_volume:1;
+    pa_bool_t refresh_muted:1;
+
+    pa_asyncmsgq *asyncmsgq;
+    pa_rtpoll *rtpoll;
+
+    pa_memchunk silence;
+
+    /* Called when the main loop requests a state change. Called from
+     * main loop context. If returns -1 the state change will be
+     * inhibited */
+    int (*set_state)(pa_source*source, pa_source_state_t state); /* may be NULL */
+
+    /* Callled when the volume is queried. Called from main loop
+     * context. If this is NULL a PA_SOURCE_MESSAGE_GET_VOLUME message
+     * will be sent to the IO thread instead. If refresh_volume is
+     * FALSE neither this function is called nor a message is sent. */
+    int (*get_volume)(pa_source *s);         /* dito */
+
+    /* Called when the volume shall be changed. Called from main loop
+     * context. If this is NULL a PA_SOURCE_MESSAGE_SET_VOLUME message
+     * will be sent to the IO thread instead. */
+    int (*set_volume)(pa_source *s);         /* dito */
+
+    /* Called when the mute setting is queried. Called from main loop
+     * context. If this is NULL a PA_SOURCE_MESSAGE_GET_MUTE message
+     * will be sent to the IO thread instead. If refresh_mute is
+     * FALSE neither this function is called nor a message is sent.*/
+    int (*get_mute)(pa_source *s);           /* dito */
+
+    /* Called when the mute setting shall be changed. Called from main
+     * loop context. If this is NULL a PA_SOURCE_MESSAGE_SET_MUTE
+     * message will be sent to the IO thread instead. */
+    int (*set_mute)(pa_source *s);           /* dito */
+
+    /* Called when a the requested latency is changed. Called from IO
+     * thread context. */
+    void (*update_requested_latency)(pa_source *s); /* dito */
+
+    /* Contains copies of the above data so that the real-time worker
+     * thread can work without access locking */
+    struct {
+        pa_source_state_t state;
+        pa_hashmap *outputs;
+        pa_cvolume soft_volume;
+        pa_bool_t soft_muted:1;
+
+        pa_bool_t requested_latency_valid:1;
+        pa_usec_t requested_latency;
+
+        /* Then number of bytes this source will be rewound for at
+         * max. (Only used on monitor sources) */
+        size_t max_rewind;
+
+        pa_usec_t min_latency; /* we won't go below this latency */
+        pa_usec_t max_latency; /* An upper limit for the latencies */
+    } thread_info;
+
+    void *userdata;
+};
+
+PA_DECLARE_CLASS(pa_source);
+#define PA_SOURCE(s) pa_source_cast(s)
+
+typedef enum pa_source_message {
+    PA_SOURCE_MESSAGE_ADD_OUTPUT,
+    PA_SOURCE_MESSAGE_REMOVE_OUTPUT,
+    PA_SOURCE_MESSAGE_GET_VOLUME,
+    PA_SOURCE_MESSAGE_SET_VOLUME,
+    PA_SOURCE_MESSAGE_GET_MUTE,
+    PA_SOURCE_MESSAGE_SET_MUTE,
+    PA_SOURCE_MESSAGE_GET_LATENCY,
+    PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY,
+    PA_SOURCE_MESSAGE_SET_STATE,
+    PA_SOURCE_MESSAGE_ATTACH,
+    PA_SOURCE_MESSAGE_DETACH,
+    PA_SOURCE_MESSAGE_SET_LATENCY_RANGE,
+    PA_SOURCE_MESSAGE_GET_LATENCY_RANGE,
+    PA_SOURCE_MESSAGE_GET_MAX_REWIND,
+    PA_SOURCE_MESSAGE_MAX
+} pa_source_message_t;
+
+typedef struct pa_source_new_data {
+    char *name;
+    pa_bool_t namereg_fail;
+    pa_proplist *proplist;
+
+    const char *driver;
+    pa_module *module;
+
+    pa_sample_spec sample_spec;
+    pa_bool_t sample_spec_is_set;
+    pa_channel_map channel_map;
+    pa_bool_t channel_map_is_set;
+
+    pa_cvolume volume;
+    pa_bool_t volume_is_set;
+    pa_bool_t muted;
+    pa_bool_t muted_is_set;
+} pa_source_new_data;
+
+pa_source_new_data* pa_source_new_data_init(pa_source_new_data *data);
+void pa_source_new_data_set_name(pa_source_new_data *data, const char *name);
+void pa_source_new_data_set_sample_spec(pa_source_new_data *data, const pa_sample_spec *spec);
+void pa_source_new_data_set_channel_map(pa_source_new_data *data, const pa_channel_map *map);
+void pa_source_new_data_set_volume(pa_source_new_data *data, const pa_cvolume *volume);
+void pa_source_new_data_set_muted(pa_source_new_data *data, pa_bool_t mute);
+void pa_source_new_data_done(pa_source_new_data *data);
+
+/* To be called exclusively by the source driver, from main context */
+
+pa_source* pa_source_new(
+        pa_core *core,
+        pa_source_new_data *data,
+        pa_source_flags_t flags);
+
+void pa_source_put(pa_source *s);
+void pa_source_unlink(pa_source *s);
+
+void pa_source_set_description(pa_source *s, const char *description);
+void pa_source_set_asyncmsgq(pa_source *s, pa_asyncmsgq *q);
+void pa_source_set_rtpoll(pa_source *s, pa_rtpoll *p);
+
+void pa_source_set_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency);
+
+void pa_source_detach(pa_source *s);
+void pa_source_attach(pa_source *s);
+
+/* May be called by everyone, from main context */
+
+/* The returned value is supposed to be in the time domain of the sound card! */
+pa_usec_t pa_source_get_latency(pa_source *s);
+pa_usec_t pa_source_get_requested_latency(pa_source *s);
+void pa_source_get_latency_range(pa_source *s, pa_usec_t *min_latency, pa_usec_t *max_latency);
+
+size_t pa_source_get_max_rewind(pa_source *s);
+
+int pa_source_update_status(pa_source*s);
+int pa_source_suspend(pa_source *s, pa_bool_t suspend);
+int pa_source_suspend_all(pa_core *c, pa_bool_t suspend);
+
+void pa_source_set_volume(pa_source *source, const pa_cvolume *volume);
+const pa_cvolume *pa_source_get_volume(pa_source *source);
+void pa_source_set_mute(pa_source *source, pa_bool_t mute);
+pa_bool_t pa_source_get_mute(pa_source *source);
+
+unsigned pa_source_linked_by(pa_source *s); /* Number of connected streams */
+unsigned pa_source_used_by(pa_source *s); /* Number of connected streams that are not corked */
+#define pa_source_get_state(s) ((pa_source_state_t) (s)->state)
+
+/* To be called exclusively by the source driver, from IO context */
+
+void pa_source_post(pa_source*s, const pa_memchunk *chunk);
+void pa_source_post_direct(pa_source*s, pa_source_output *o, const pa_memchunk *chunk);
+void pa_source_process_rewind(pa_source *s, size_t nbytes);
+
+int pa_source_process_msg(pa_msgobject *o, int code, void *userdata, int64_t, pa_memchunk *chunk);
+
+void pa_source_attach_within_thread(pa_source *s);
+void pa_source_detach_within_thread(pa_source *s);
+
+pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s);
+
+void pa_source_set_max_rewind(pa_source *s, size_t max_rewind);
+void pa_source_update_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency);
+
+/* To be called exclusively by source output drivers, from IO context */
+
+void pa_source_invalidate_requested_latency(pa_source *s);
+
+#endif