Add an option to alffplay to toggle AL_DIRECT_CHANNELS_SOFT

Using the 'd' key will toggle the playback source's AL_DIRECT_CHANNELS_SOFT
property. Although there is no visual feedback showing when it's on or off.

1 files changed, 22 insertions, 0 deletions

diff --git a/examples/alffplay.c b/examples/alffplay.c
index b9acbb8e..16684c5e 100644
--- a/examples/alffplay.c
+++ b/examples/alffplay.c
@@ -33,6 +33,7 @@
 #include "AL/alext.h"
 
 
+static bool has_direct_out = false;
 static bool has_latency_check = false;
 static LPALGETSOURCEDVSOFT alGetSourcedvSOFT;
 
@@ -140,6 +141,7 @@ typedef struct MovieState {
 
     volatile bool seek_req;
     int64_t       seek_pos;
+    volatile bool direct_req;
 
     int av_sync_type;
 
@@ -750,6 +752,17 @@ static int audio_thread(void *userdata)
         }
         SDL_Delay(AUDIO_BUFFER_TIME);
 
+        if(movState->direct_req)
+        {
+            if(has_direct_out)
+            {
+                alGetSourcei(movState->audio.source, AL_DIRECT_CHANNELS_SOFT, &state);
+                alSourcei(movState->audio.source, AL_DIRECT_CHANNELS_SOFT,
+                          state ? AL_FALSE : AL_TRUE);
+            }
+            movState->direct_req = false;
+        }
+
         almtx_lock(&movState->audio.src_mutex);
     }
     almtx_unlock(&movState->audio.src_mutex);
@@ -1397,6 +1410,11 @@ int main(int argc, char *argv[])
         return 1;
     }
 
+    if(!alIsExtensionPresent("AL_SOFT_direct_channels"))
+        fprintf(stderr, "AL_SOFT_direct_channels not supported.\n");
+    else
+        has_direct_out = true;
+
     if(!alIsExtensionPresent("AL_SOFT_source_latency"))
         fprintf(stderr, "AL_SOFT_source_latency not supported, audio may be a bit laggy.\n");
     else
@@ -1475,6 +1493,10 @@ int main(int argc, char *argv[])
                         stream_seek(movState, -30.0);
                         break;
 
+                    case SDLK_d:
+                        movState->direct_req = true;
+                        break;
+
                     default:
                         break;
                 }