Implement support for scripted speech events

2 files changed, 41 insertions, 1 deletions

diff --git a/include/xas/script.h b/include/xas/script.h
index 5f0af87..4068e17 100644
--- a/include/xas/script.h
+++ b/include/xas/script.h
@@ -13,7 +13,8 @@ enum xas_script_event_type {
     XAS_SCRIPT_EVENT_SET_POSITION,
     XAS_SCRIPT_EVENT_SET_GAIN,
     XAS_SCRIPT_EVENT_SET_FREQUENCY,
-    XAS_SCRIPT_EVENT_SET_BANK_INDEX
+    XAS_SCRIPT_EVENT_SET_BANK_INDEX,
+    XAS_SCRIPT_EVENT_SPEECH
 };
 
 enum xas_script_object_type {
@@ -38,6 +39,7 @@ struct _xas_script_event {
         xas_spatial_coord point;
         size_t index;
         size_t frequency;
+        const char *phrase;
     };
 
     xas_script_event *next;
@@ -83,6 +85,11 @@ int xas_script_add_set_frequency(xas_script *script,
                                    struct timeval timestamp,
                                    size_t frequency);
 
+int xas_script_add_speech(xas_script *script,
+                            xas_spatial_object *object,
+                            struct timeval timestamp,
+                            const char *phrase);
+
 int xas_script_play(xas_script *script, xas_audio_stream *sink);
 
 #endif /* _XAS_SCRIPT_H */
diff --git a/src/script.c b/src/script.c
index 29d76ca..d84a54a 100644
--- a/src/script.c
+++ b/src/script.c
@@ -4,6 +4,7 @@
 #include <xas/object.h>
 #include <xas/bank.h>
 #include <xas/synth.h>
+#include <xas/vox.h>
 #include <xas/script.h>
 
 xas_script *xas_script_new(xas_spatial_scene *scene, size_t buffer_size) {
@@ -213,6 +214,31 @@ error_malloc_ev:
     return -1;
 }
 
+int xas_script_add_phrase(xas_script *script,
+                            xas_spatial_object *object,
+                            struct timeval timestamp,
+                            const char *phrase) {
+    xas_script_event *ev;
+
+    if ((ev = malloc(sizeof(*ev))) == NULL) {
+        goto error_malloc_ev;
+    }
+
+    ev->type      = XAS_SCRIPT_EVENT_SPEECH;
+    ev->objtype   = XAS_SCRIPT_OBJECT_VOX;
+    ev->object    = object;
+    ev->timestamp = timestamp;
+    ev->next      = NULL;
+    ev->phrase    = phrase;
+
+    add_event(script, ev);
+
+    return 0;
+
+error_malloc_ev:
+    return -1;
+}
+
 static inline void timerupdate(struct timeval *tv,
                                suseconds_t interval,
                                size_t frame) {
@@ -259,6 +285,13 @@ static int event_trigger(xas_spatial_scene *scene, xas_script_event *ev) {
             xas_bank_player_set_entry(ev->object->ctx, ev->gain);
 
             break;
+
+        case XAS_SCRIPT_EVENT_SPEECH:
+            if (ev->objtype != XAS_SCRIPT_OBJECT_VOX) {
+                goto error_invalid_event;
+            }
+
+            xas_vox_say(ev->object->ctx, ev->phrase);
     }
 
     return 0;