Mercurial > sdl-ios-xcode
view src/video/os2fslib/SDL_os2fslib.h @ 1982:3b4ce57c6215
First shot at new audio data types (int32 and float32).
Notable changes:
- Converters between types are autogenerated. Instead of making multiple
passes over the data with seperate filters for endianess, size, signedness,
etc, converting between data types is always one specialized filter. This
simplifies SDL_BuildAudioCVT(), which otherwise had a million edge cases
with the new types, and makes the actually conversions more CPU cache
friendly. Left a stub for adding specific optimized versions of these
routines (SSE/MMX/Altivec, assembler, etc)
- Autogenerated converters are built by SDL/src/audio/sdlgenaudiocvt.pl. This
does not need to be run unless tweaking the code, and thus doesn't need
integration into the build system.
- Went through all the drivers and tried to weed out all the "Uint16"
references that are better specified with the new SDL_AudioFormat typedef.
- Cleaned out a bunch of hardcoded bitwise magic numbers and replaced them
with new SDL_AUDIO_* macros.
- Added initial float32 and int32 support code. Theoretically, existing
drivers will push these through converters to get the data they want to
feed to the hardware.
Still TODO:
- Optimize and debug new converters.
- Update the CoreAudio backend to accept float32 data directly.
- Other backends, too?
- SDL_LoadWAV() needs to be updated to support int32 and float32 .wav files
(both of which exist and can be generated by 'sox' for testing purposes).
- Update the mixer to handle new datatypes.
- Optionally update SDL_sound and SDL_mixer, etc.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Thu, 24 Aug 2006 12:10:46 +0000 |
| parents | c121d94672cb |
| children | 99210400e8b9 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #ifndef _SDL_os2fslib_h #define _SDL_os2fslib_h // OS2 specific includes #define INCL_TYPES #define INCL_DOS #define INCL_DOSERRORS #define INCL_DOSPROCESS #define INCL_WIN #define INCL_GPI #include <os2.h> #include <FSLib.h> /* Hidden "this" pointer for the video functions */ #define _THIS SDL_VideoDevice *_this /* Private display data */ struct SDL_PrivateVideoData { FSLib_VideoMode_p pAvailableFSLibVideoModes; SDL_Rect **pListModesResult; // Allocated memory to return list of modes for os2fslib_ListModes() API FSLib_VideoMode SrcBufferDesc; // Description of current source image buffer char *pchSrcBuffer; // The source image buffer itself SDL_Surface *pSDLSurface; // The SDL surface describing the buffer HMTX hmtxUseSrcBuffer; // Mutex semaphore to manipulate src buffer HWND hwndFrame, hwndClient; // Window handle of frame and client int iPMThreadStatus; // 0: Not running // 1: Running // Other: Not running, had an error int tidPMThread; // Thread ID of PM Thread int fInFocus; // True if we're in focus! int iSkipWMMOUSEMOVE; // Number of WM_MOUSEMOVE messages to skip! int iMouseVisible; // PFNWP pfnOldFrameProc; // Old window frame procedure int bProportionalResize; // 0: No proportional resizing // 1: Do proportional resizing ULONG ulResizingFlag; // First resizing flag value }; /* OS/2 specific backdoor function to be able to set FrameControlFlags of */ /* the SDL window before creating it. */ extern DECLSPEC void SDLCALL SDL_OS2FSLIB_SetFCFToUse(ULONG ulFCF); #endif /* _SDL_os2fslib_h */ /* vi: set ts=4 sw=4 expandtab: */