+#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"
+#include "gi_blorb.h"
+#include "resource.h"
+
+extern GPrivate *glk_data_key;
+
+#ifdef GSTREAMER_SOUND
+/* Stop any currently playing sound on this channel, and remove any
+ format-specific GStreamer elements from the channel. */
+static void
+clean_up_after_playing_sound(schanid_t chan)
+{
+ if(!gst_element_set_state(chan->pipeline, GST_STATE_NULL))
+ WARNING_S(_("Could not set GstElement state to"), "NULL");
+ if(chan->demux)
+ {
+ gst_bin_remove(GST_BIN(chan->pipeline), chan->demux);
+ chan->demux = NULL;
+ }
+ if(chan->decode)
+ {
+ gst_bin_remove(GST_BIN(chan->pipeline), chan->decode);
+ chan->decode = NULL;
+ }
+}
+
+/* This signal is thrown whenever the GStreamer pipeline generates a message.
+ Most messages are harmless. */
+static void
+on_pipeline_message(GstBus *bus, GstMessage *message, schanid_t s)
+{
+ /* g_printerr("Got %s message\n", GST_MESSAGE_TYPE_NAME(message)); */
+
+ GError *err;
+ gchar *debug_message;
+
+ switch(GST_MESSAGE_TYPE(message)) {
+ case GST_MESSAGE_ERROR:
+ {
+ gst_message_parse_error(message, &err, &debug_message);
+ IO_WARNING(_("GStreamer error"), err->message, debug_message);
+ g_error_free(err);
+ g_free(debug_message);
+ clean_up_after_playing_sound(s);
+ }
+ break;
+ case GST_MESSAGE_WARNING:
+ {
+ gst_message_parse_warning(message, &err, &debug_message);
+ IO_WARNING(_("GStreamer warning"), err->message, debug_message);
+ g_error_free(err);
+ g_free(debug_message);
+ }
+ break;
+ case GST_MESSAGE_INFO:
+ {
+ gst_message_parse_info(message, &err, &debug_message);
+ g_message("GStreamer info \"%s\": %s", err->message, debug_message);
+ g_error_free(err);
+ g_free(debug_message);
+ }
+ break;
+ case GST_MESSAGE_EOS:
+ /* end-of-stream */
+ clean_up_after_playing_sound(s);
+ break;
+ default:
+ /* unhandled message */
+ break;
+ }
+}
+
+/* This signal is thrown when the OGG demuxer element has decided what kind of
+ outputs it will output. We connect the decoder element dynamically. */
+static void
+on_ogg_demuxer_pad_added(GstElement *demux, GstPad *pad, schanid_t s)
+{
+ GstPad *sinkpad;
+
+ /* We can now link this pad with the vorbis-decoder sink pad */
+ sinkpad = gst_element_get_static_pad(s->decode, "sink");
+ if(gst_pad_link(pad, sinkpad) != GST_PAD_LINK_OK)
+ WARNING(_("Could not link OGG demuxer with Vorbis decoder"));
+ gst_object_unref(sinkpad);
+}
+
+/* This signal is thrown when the typefinder element has found the type of its
+ input. Now that we know what kind of input stream we have, we can connect the
+ proper demuxer/decoder elements. */
+static void
+on_type_found(GstElement *typefind, guint probability, GstCaps *caps, schanid_t s)
+{
+ gchar *type = gst_caps_to_string(caps);
+ if(strcmp(type, "application/ogg") == 0)
+ {
+ s->demux = gst_element_factory_make("oggdemux", NULL);
+ s->decode = gst_element_factory_make("vorbisdec", NULL);
+ if(!s->demux || !s->decode)
+ {
+ WARNING(_("Could not create one or more GStreamer elements"));
+ goto finally;
+ }
+ gst_bin_add_many(GST_BIN(s->pipeline), s->demux, s->decode, NULL);
+ if(!gst_element_link(s->typefind, s->demux) || !gst_element_link(s->decode, s->convert))
+ {
+ WARNING(_("Could not link GStreamer elements"));
+ goto finally;
+ }
+ /* We link the demuxer and decoder together dynamically, since the
+ demuxer doesn't know what source pads it will have until it starts
+ demuxing the stream */
+ g_signal_connect(s->demux, "pad-added", G_CALLBACK(on_ogg_demuxer_pad_added), s);
+ }
+ else if(strcmp(type, "audio/x-aiff") == 0)
+ {
+ s->decode = gst_element_factory_make("aiffparse", NULL);
+ if(!s->decode)
+ {
+ WARNING(_("Could not create 'aiffparse' GStreamer element"));
+ goto finally;
+ }
+ gst_bin_add(GST_BIN(s->pipeline), s->decode);
+ if(!gst_element_link_many(s->typefind, s->decode, s->convert, NULL))
+ {
+ WARNING(_("Could not link GStreamer elements"));
+ goto finally;
+ }
+ }
+ else
+ {
+ WARNING_S(_("Unexpected audio type in blorb"), type);
+ }
+
+finally:
+ g_free(type);
+}
+#endif /* GSTREAMER_SOUND */
/**
* 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);
+
+ /* Watch for messages from the pipeline */
+ GstBus *bus = gst_pipeline_get_bus(GST_PIPELINE(s->pipeline));
+ gst_bus_add_signal_watch(bus);
+ g_signal_connect(bus, "message", G_CALLBACK(on_pipeline_message), s);
+ gst_object_unref(bus);
+
+ /* Create GStreamer elements to put in the pipeline */
+ s->source = gst_element_factory_make("giostreamsrc", NULL);
+ s->typefind = gst_element_factory_make("typefind", NULL);
+ s->convert = gst_element_factory_make("audioconvert", NULL);
+ s->filter = gst_element_factory_make("volume", NULL);
+ s->sink = gst_element_factory_make("autoaudiosink", NULL);
+ if(!s->source || !s->typefind || !s->convert || !s->filter || !s->sink) {
+ WARNING(_("Could not create one or more GStreamer elements"));
+ goto fail;
+ }
+
+ /* Put the elements in the pipeline and link as many together as we can
+ without knowing the type of the audio stream */
+ gst_bin_add_many(GST_BIN(s->pipeline), s->source, s->typefind, s->convert, s->filter, s->sink, NULL);
+ /* Link elements: Source -> typefinder -> ??? -> Converter -> Volume filter -> Sink */
+ if(!gst_element_link(s->source, s->typefind) || !gst_element_link_many(s->convert, s->filter, s->sink, NULL)) {
+ WARNING(_("Could not link GStreamer elements"));
+ goto fail;
+ }
+ g_signal_connect(s->typefind, "have-type", G_CALLBACK(on_type_found), s);
+
+ 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;
+ }
+
+ /* This also frees all the objects inside the pipeline */
+ 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
+ ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
+
+ if(!glk_data->resource_map) {
+ if(!glk_data->resource_load_callback) {
+ WARNING(_("No resource map has been loaded yet."));
+ return 0;
+ }
+ WARNING(_("Loading sound resources from alternative location not yet supported."));
+ return 0;
+ }
+
+ giblorb_result_t resource;
+ giblorb_err_t result = giblorb_load_resource(glk_data->resource_map, giblorb_method_Memory, &resource, giblorb_ID_Snd, snd);
+ if(result != giblorb_err_None) {
+ WARNING_S( _("Error loading resource"), giblorb_get_error_message(result) );
+ return 0;
+ }
+ GInputStream *stream = g_memory_input_stream_new_from_data(resource.data.ptr, resource.length, NULL);
+ g_object_set(chan->source, "stream", stream, NULL);
+
+ 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
+ clean_up_after_playing_sound(chan);
+#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