Mercurial > sdl-ios-xcode
view src/audio/dart/SDL_dart.h @ 2866:e532417a6977
Fixed SDL 1.2 compatibility problem.
The API specifies that SDL_OpenAudio() will fill out the 'desired' audio spec
with the correct samples and size set by the driver. This value is important
since it may be used by applications that size audio buffers, etc.
However, we want to allow advanced applications to call SDL_OpenAudioDevice()
which gets passed a const 'desired' parameter, and have the correct data filled
into the 'obtained' parameter, possibly allowing or not allowing format changes.
So... 'obtained' becomes the audio format the user callback is expected to use,
and we add flags to allow the application to specify which format changes are
allowed.
Note: We really need to add a way to query the 'obtained' audio spec.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sat, 13 Dec 2008 06:36:47 +0000 |
parents | 99210400e8b9 |
children |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #ifndef _SDL_dart_h #define _SDL_dart_h #define INCL_TYPES #define INCL_DOSSEMAPHORES #define INCL_DOSRESOURCES #define INCL_DOSMISC #define INCL_DOSERRORS #define INCL_DOSPROCESS #define INCL_OS2MM #define INCL_MMIOOS2 #define INCL_MCIOS2 #include <os2.h> #include <os2me.h> // DART stuff and MMIO stuff #include "../SDL_sysaudio.h" /* Hidden "this" pointer for the audio functions */ #define _THIS SDL_AudioDevice *_this /* The DirectSound objects */ struct SDL_PrivateAudioData { int iCurrDeviceOrd; int iCurrFreq; int iCurrBits; int iCurrChannels; int iCurrNumBufs; int iCurrBufSize; int iLastPlayedBuf; int iNextFreeBuffer; MCI_BUFFER_PARMS BufferParms; // Sound buffer parameters MCI_MIX_BUFFER *pMixBuffers; // Sound buffers MCI_MIXSETUP_PARMS MixSetupParms; // Mixer setup parameters HEV hevAudioBufferPlayed; // Event semaphore to indicate that an audio buffer has been played by DART }; #endif /* _SDL_dart_h */ /* vi: set ts=4 sw=4 expandtab: */