+#include <config.h>
#include <glib.h>
+#include <glib/gi18n.h>
#include <libchimara/glk.h>
-
+#ifdef GSTREAMER_SOUND
+#include <gst/gst.h>
+#endif
#include "magic.h"
#include "schannel.h"
+#include "chimara-glk-private.h"
+#include "gi_dispa.h"
+
+extern GPrivate *glk_data_key;
/**
* glk_schannel_create:
* Remember that it is possible that the library will be unable to create a new
* channel, in which case glk_schannel_create() will return %NULL.
*
- * <warning><para>This function is not implemented yet.</para></warning>
- *
* Returns: A new sound channel, or %NULL.
*/
schanid_t
glk_schannel_create(glui32 rock)
{
+#ifdef GSTREAMER_SOUND
+ ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
+
+ schanid_t s = g_new0(struct glk_schannel_struct, 1);
+ s->magic = MAGIC_SCHANNEL;
+ s->rock = rock;
+ if(glk_data->register_obj)
+ s->disprock = (*glk_data->register_obj)(s, gidisp_Class_Schannel);
+
+ /* Add it to the global sound channel list */
+ glk_data->schannel_list = g_list_prepend(glk_data->schannel_list, s);
+ s->schannel_list = glk_data->schannel_list;
+
+ /* Create a GStreamer pipeline for the sound channel */
+ gchar *pipeline_name = g_strdup_printf("pipeline-%p", s);
+ s->pipeline = gst_pipeline_new(pipeline_name);
+ g_free(pipeline_name);
+
+ /* Create GStreamer elements to put in the pipeline */
+ s->source = gst_element_factory_make("audiotestsrc", NULL);
+ s->filter = gst_element_factory_make("volume", NULL);
+ s->sink = gst_element_factory_make("autoaudiosink", NULL);
+ if(!s->source || !s->filter || !s->sink) {
+ WARNING("Could not create one or more GStreamer elements");
+ goto fail;
+ }
+
+ gst_bin_add_many(GST_BIN(s->pipeline), s->source, s->filter, s->sink, NULL);
+ if(!gst_element_link_many(s->source, s->filter, s->sink, NULL)) {
+ WARNING("Could not link GStreamer elements");
+ goto fail;
+ }
+
+ return s;
+
+fail:
+ glk_schannel_destroy(s);
+ return NULL;
+#else
return NULL;
+#endif /* GSTREAMER_SOUND */
}
/**
*
* Destroys the channel. If the channel is playing a sound, the sound stops
* immediately (with no notification event).
- *
- * <warning><para>This function is not implemented yet.</para></warning>
*/
void
glk_schannel_destroy(schanid_t chan)
{
VALID_SCHANNEL(chan, return);
+
+#ifdef GSTREAMER_SOUND
+ ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
+
+ if(!gst_element_set_state(chan->pipeline, GST_STATE_NULL))
+ WARNING_S(_("Could not set GstElement state to"), "NULL");
+
+ glk_data->schannel_list = g_list_delete_link(glk_data->schannel_list, chan->schannel_list);
+
+ if(glk_data->unregister_obj)
+ {
+ (*glk_data->unregister_obj)(chan, gidisp_Class_Schannel, chan->disprock);
+ chan->disprock.ptr = NULL;
+ }
+
+ if(chan->pipeline)
+ gst_object_unref(chan->pipeline);
+
+ chan->magic = MAGIC_FREE;
+ g_free(chan);
+#endif
}
/**
* As that section describes, the order in which channels are returned is
* arbitrary.
*
- * <warning><para>This function is not implemented yet.</para></warning>
- *
* Returns: the next sound channel, or %NULL if there are no more.
*/
schanid_t
glk_schannel_iterate(schanid_t chan, glui32 *rockptr)
{
VALID_SCHANNEL_OR_NULL(chan, return NULL);
+
+#ifdef GSTREAMER_SOUND
+ ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
+ GList *retnode;
+
+ if(chan == NULL)
+ retnode = glk_data->schannel_list;
+ else
+ retnode = chan->schannel_list->next;
+ schanid_t retval = retnode? (schanid_t)retnode->data : NULL;
+
+ /* Store the sound channel's rock in rockptr */
+ if(retval && rockptr)
+ *rockptr = glk_schannel_get_rock(retval);
+
+ return retval;
+#else
return NULL;
+#endif /* GSTREAMER_SOUND */
}
/**
* Retrieves the channel's rock value. See <link
* linkend="chimara-Rocks">Rocks</link>.
*
- * <warning><para>This function is not implemented yet.</para></warning>
- *
* Returns: A rock value.
*/
glui32
glk_schannel_get_rock(schanid_t chan)
{
VALID_SCHANNEL(chan, return 0);
- return 0;
+ return chan->rock;
}
/**
* in which case playing a MOD resource would fail if one was already playing.
* </para></note>
*
- * <warning><para>This function is not implemented yet.</para></warning>
- *
* Returns: 1 on success, 0 on failure.
*/
glui32
glk_schannel_play(schanid_t chan, glui32 snd)
{
- VALID_SCHANNEL(chan, return 0);
- return 0;
+ return glk_schannel_play_ext(chan, snd, 1, 0);
}
/**
* %gestalt_SoundNotify selector before you rely on it; see <link
* linkend="chimara-Testing-for-Sound-Capabilities">Testing for Sound
* Capabilities</link>.
- *
- * <warning><para>This function is not implemented yet.</para></warning>
*
* Returns: 1 on success, 0 on failure.
*/
glk_schannel_play_ext(schanid_t chan, glui32 snd, glui32 repeats, glui32 notify)
{
VALID_SCHANNEL(chan, return 0);
+#ifdef GSTREAMER_SOUND
+ if(!gst_element_set_state(chan->pipeline, GST_STATE_PLAYING)) {
+ WARNING_S(_("Could not set GstElement state to"), "PLAYING");
+ return 0;
+ }
+ return 1;
+#else
return 0;
+#endif
}
/**
*
* Stops any sound playing in the channel. No notification event is generated,
* even if you requested one. If no sound is playing, this has no effect.
- *
- * <warning><para>This function is not implemented yet.</para></warning>
*/
void
glk_schannel_stop(schanid_t chan)
{
VALID_SCHANNEL(chan, return);
+#ifdef GSTREAMER_SOUND
+ if(!gst_element_set_state(chan->pipeline, GST_STATE_READY))
+ WARNING_S(_("Could not set GstElement state to"), "READY");
+#endif
}
/**
* linkend="chimara-Testing-for-Sound-Capabilities">Testing for Sound
* Capabilities</link>.
*
- * <warning><para>This function is not implemented yet.</para></warning>
+ * <note><title>Chimara</title>
+ * <para>Chimara supports volumes from 0 to 1000%, that is, values of
+ * @vol up to 0xA0000.</para>
+ * </note>
*/
void
glk_schannel_set_volume(schanid_t chan, glui32 vol)
{
VALID_SCHANNEL(chan, return);
+#ifdef GSTREAMER_SOUND
+ gdouble volume_gst = (gdouble)vol / 0x10000;
+ g_printerr("Volume set to: %f\n", volume_gst);
+ g_object_set(chan->filter, "volume", CLAMP(volume_gst, 0.0, 10.0), NULL);
+#endif
}
/**
projects / projects / chimara / chimara.git / blobdiff