diff options
| -rw-r--r-- | Game/Code/Classes/UAudioCore_Portaudio.pas | 99 | ||||
| -rw-r--r-- | Game/Code/UltraStar.dpr | 6 |
2 files changed, 101 insertions, 4 deletions
diff --git a/Game/Code/Classes/UAudioCore_Portaudio.pas b/Game/Code/Classes/UAudioCore_Portaudio.pas new file mode 100644 index 00000000..952b211b --- /dev/null +++ b/Game/Code/Classes/UAudioCore_Portaudio.pas @@ -0,0 +1,99 @@ +unit UAudioCore_Portaudio; + +interface + +{$IFDEF FPC} + {$MODE Delphi} +{$ENDIF} + +{$I ../switches.inc} + + +uses + Classes, + SysUtils, + portaudio; + +type + TAudioCore_Portaudio = class + public + class function GetPreferredApiIndex(): TPaHostApiIndex; + end; + +implementation + +uses + ULog; + +{* + * The default API used by Portaudio is the least common denominator + * and might lack efficiency. In addition it might not even work. + * We use an array named ApiPreferenceOrder with which we define the order of + * preferred APIs to use. The first API-type in the list is tried first. + * If it is not available the next one is tried and so on ... + * If none of the preferred APIs was found the default API (detected by + * portaudio) is used. + * + * Pascal does not permit zero-length static arrays, so you must use paDefaultApi + * as an array's only member if you do not have any preferences. + * You can also append paDefaultApi to a non-zero length preferences array but + * this is optional because the default API is always used as a fallback. + *} +const + paDefaultApi = -1; +const + ApiPreferenceOrder: +{$IF Defined(MSWINDOWS)} + // Note1: Portmixer has no mixer support for paASIO and paWASAPI at the moment + // Note2: Windows Default-API is MME, but DirectSound is faster + array[0..0] of TPaHostApiTypeId = ( paDirectSound ); +{$ELSEIF Defined(LINUX)} + // Note: Portmixer has no mixer support for JACK at the moment + array[0..2] of TPaHostApiTypeId = ( paALSA, paJACK, paOSS ); +{$ELSEIF Defined(DARWIN)} + array[0..0] of TPaHostApiTypeId = ( paDefaultApi ); // paCoreAudio +{$ELSE} + array[0..0] of TPaHostApiTypeId = ( paDefaultApi ); +{$IFEND} + + +{ TAudioInput_Portaudio } + +class function TAudioCore_Portaudio.GetPreferredApiIndex(): TPaHostApiIndex; +var + i: integer; + apiIndex: TPaHostApiIndex; + apiInfo: PPaHostApiInfo; +begin + result := -1; + + // select preferred sound-API + for i:= 0 to High(ApiPreferenceOrder) do + begin + if(ApiPreferenceOrder[i] <> paDefaultApi) then + begin + // check if API is available + apiIndex := Pa_HostApiTypeIdToHostApiIndex(ApiPreferenceOrder[i]); + if(apiIndex >= 0) then + begin + // we found an API but we must check if it works + // (on linux portaudio might detect OSS but does not provide + // any devices if ALSA is enabled) + apiInfo := Pa_GetHostApiInfo(apiIndex); + if (apiInfo^.deviceCount > 0) then + begin + Result := apiIndex; + break; + end; + end; + end; + end; + + // None of the preferred APIs is available -> use default + if(result < 0) then + begin + result := Pa_GetDefaultHostApi(); + end; +end; + +end. diff --git a/Game/Code/UltraStar.dpr b/Game/Code/UltraStar.dpr index 55046af3..4acb5d1f 100644 --- a/Game/Code/UltraStar.dpr +++ b/Game/Code/UltraStar.dpr @@ -24,6 +24,7 @@ uses {$ENDIF} {$IFDEF UsePortaudio} portaudio in 'lib\portaudio\delphi\portaudio.pas', + UAudioCore_Portaudio in 'Classes\UAudioCore_Portaudio.pas', {$ENDIF} {$IFDEF UsePortmixer} portmixer in 'lib\portmixer\delphi\portmixer.pas', @@ -127,7 +128,7 @@ uses UPluginInterface in 'Classes\UPluginInterface.pas', //Interface offered by Core to Plugins uPluginLoader in 'Classes\uPluginLoader.pas', //New Plugin Loader Module - UParty in 'Classes\UParty.pas', // to - do : rewrite Party Manager as Module, reomplent ability to offer party Mody by Plugin + UParty in 'Classes\UParty.pas', // TODO: rewrite Party Manager as Module, reomplent ability to offer party Mody by Plugin UPlatform in 'Classes\UPlatform.pas', {$IFDEF WIN32} UPlatformWindows in 'Classes\UPlatformWindows.pas', @@ -233,9 +234,6 @@ uses {$ENDIF} SysUtils; -const - Version = 'UltraStar Deluxe V 1.10 Alpha Build'; - {$IFNDEF FPC} begin Main; |