Implement xas_bank_player type

Changes:

    * Implement xas_bank_player type to decouple player state from
      sample storage, to allow multiple concurrent players against a
      single sample bank

    * Refactor examples/say.c to use xas_bank_player

1 files changed, 18 insertions, 9 deletions

diff --git a/examples/say.c b/examples/say.c
index e0aea9a..8741a10 100644
--- a/examples/say.c
+++ b/examples/say.c
@@ -75,8 +75,10 @@ int main(int argc, char **argv) {
     xas_bank *bank;
     xas_vox *vox;
 
+    xas_bank_player *player;
+
     xas_audio_stream *voice,
-                       *bank_stream,
+                       *player_stream,
                        *synth_l,
                        *synth_r,
                        *output;
@@ -105,6 +107,10 @@ int main(int argc, char **argv) {
         goto error_bank_new;
     }
 
+    if ((player = xas_bank_player_new(bank)) == NULL) {
+        goto error_bank_player_new;
+    }
+
     if ((output = xas_riff_new_file(argv[1],
                                       format,
                                       O_WRONLY | O_CREAT | O_TRUNC)) == NULL) {
@@ -115,8 +121,8 @@ int main(int argc, char **argv) {
         goto error_vox_stream_new;
     }
 
-    if ((bank_stream = xas_bank_stream_new(bank)) == NULL) {
-        goto error_bank_stream_new;
+    if ((player_stream = xas_bank_player_stream_new(player)) == NULL) {
+        goto error_bank_player_stream_new;
     }
 
     if ((synth_l = xas_synth_new((xas_synth_callback_sample)sine_sample,
@@ -139,7 +145,7 @@ int main(int argc, char **argv) {
         goto error_mixer_new;
     }
 
-    if (xas_mixer_input_add(mixer, bank_stream, 1.0, 0.0) == NULL) {
+    if (xas_mixer_input_add(mixer, player_stream, 1.0, 0.0) == NULL) {
         goto error_mixer_input_add;
     }
 
@@ -166,8 +172,8 @@ int main(int argc, char **argv) {
         void *buf;
         ssize_t readlen;
 
-        if (i >= 300 && !xas_bank_active(bank)) {
-            xas_bank_play(bank, 0, 1.0);
+        if (i >= 300 && !xas_bank_player_playing(player)) {
+            xas_bank_player_start(player, 0, 1.0);
         }
 
         if ((readlen = xas_audio_stream_read(mixer->output,
@@ -186,7 +192,7 @@ int main(int argc, char **argv) {
     xas_mixer_destroy(mixer);
     xas_audio_stream_destroy(synth_r);
     xas_audio_stream_destroy(synth_l);
-    xas_audio_stream_destroy(bank_stream);
+    xas_audio_stream_destroy(player_stream);
     xas_audio_stream_destroy(voice);
     xas_audio_stream_destroy(output);
 
@@ -208,15 +214,18 @@ error_synth_new_r:
     xas_audio_stream_destroy(synth_l);
 
 error_synth_new_l:
-    xas_audio_stream_destroy(bank_stream);
+    xas_audio_stream_destroy(player_stream);
 
-error_bank_stream_new:
+error_bank_player_stream_new:
     xas_audio_stream_destroy(voice);
 
 error_vox_stream_new:
     xas_audio_stream_destroy(output);
 
 error_riff_new_file:
+    xas_bank_player_destroy(player);
+
+error_bank_player_new:
     xas_bank_destroy(bank);
 
 error_bank_new: