FFT support for SDL/Portaudio playback

git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/trunk@909 b956fd51-792f-4845-bead-9b4dfca2ff2c

1 files changed, 6 insertions, 1 deletions

diff --git a/Game/Code/Classes/UAudioInput_Portaudio.pas b/Game/Code/Classes/UAudioInput_Portaudio.pas
index 74c8d98f..077598a9 100644
--- a/Game/Code/Classes/UAudioInput_Portaudio.pas
+++ b/Game/Code/Classes/UAudioInput_Portaudio.pas
@@ -149,6 +149,7 @@ var
   stream:      PPaStream;
   streamInfo:  PPaStreamInfo;
   sampleRate:  integer;
+  latency:     TPaTime;
   {$IFDEF UsePortmixer}
   mixer:       PPxMixer;
   {$ENDIF}
@@ -210,13 +211,17 @@ begin
     else
       sampleRate := 44100;
 
+    // on vista and xp the defaultLowInputLatency may be set to 0 but it works.
+    // TODO: correct too low latencies (what is a too low latency, maybe < 10ms?)
+    latency := deviceInfo^.defaultLowInputLatency;
+
     // setup desired input parameters
     with inputParams do
     begin
       device := deviceIndex;
       channelCount := channelCnt;
       sampleFormat := paInt16;
-      suggestedLatency := deviceInfo^.defaultLowInputLatency;
+      suggestedLatency := latency;
       hostApiSpecificStreamInfo := nil;
     end;