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Audio CVT cannot be supported in C#, SDL_AudioCallback might work though.

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This commit is contained in:
Ethan Lee 2013-04-06 09:29:00 -04:00
parent db33bd5590
commit 824d610948
1 changed files with 8 additions and 33 deletions
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41
src/SDL2.cs
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@ -3729,22 +3729,13 @@ namespace SDL2
SDL_AUDIO_PAUSED SDL_AUDIO_PAUSED
} }
[StructLayoutAttribute(LayoutKind.Sequential)] // FIXME: Will this work?
public unsafe struct SDL_AudioCVT /* userdata refers to a void*, stream to a Uint8 */
{ public delegate void SDL_AudioCallback(
public int needed; IntPtr userdata,
public ushort src_format; // SDL_AudioFormat IntPtr stream,
public ushort dst_format; // SDL_AudioFormat int len
public double rate_incr; );
public IntPtr buf; // Uint8*
public int len;
public int len_cvt;
public int len_mult;
public double len_ratio;
// FIXME: Uhhhcrap, how do we deal with fn ptrs in C#...
public fixed uint/*Ptr*/ filters[10]; // SDL_AudioFilter???
public int filter_index;
}
[StructLayoutAttribute(LayoutKind.Sequential)] [StructLayoutAttribute(LayoutKind.Sequential)]
public struct SDL_AudioSpec public struct SDL_AudioSpec
@ -3755,8 +3746,7 @@ namespace SDL2
public byte silence; public byte silence;
public ushort samples; public ushort samples;
public uint size; public uint size;
// FIXME: Uhhhcrap, how do we deal with fn ptrs in C#... public SDL_AudioCallback callback;
public IntPtr callback; // SDL_AudioCallback???
public IntPtr userdata; // void* public IntPtr userdata; // void*
} }
@ -3773,18 +3763,6 @@ namespace SDL2
[DllImport(nativeLibName)] [DllImport(nativeLibName)]
public static extern void SDL_AudioQuit(); public static extern void SDL_AudioQuit();
/* src_format and dst_format refer to an SDL_AudioFormat */
[DllImport(nativeLibName)]
public static extern int SDL_BuildAudioCVT(
ref SDL_AudioCVT cvt,
ushort src_format,
byte src_channels,
int src_rate,
ushort dst_format,
byte dst_channels,
int dst_rate
);
[DllImport(nativeLibName)] [DllImport(nativeLibName)]
public static extern void SDL_CloseAudio(); public static extern void SDL_CloseAudio();
@ -3792,9 +3770,6 @@ namespace SDL2
[DllImport(nativeLibName)] [DllImport(nativeLibName)]
public static extern void SDL_CloseAudioDevice(uint dev); public static extern void SDL_CloseAudioDevice(uint dev);
[DllImport(nativeLibName)]
public static extern void SDL_ConvertAudio(ref SDL_AudioCVT cvt);
/* audio_buf refers to a malloc()'d buffer from SDL_LoadWAV */ /* audio_buf refers to a malloc()'d buffer from SDL_LoadWAV */
[DllImport(nativeLibName)] [DllImport(nativeLibName)]
public static extern void SDL_FreeWav(IntPtr audio_buf); public static extern void SDL_FreeWav(IntPtr audio_buf);