Mercurial > sdl-ios-xcode
view src/video/Xext/extensions/Xvlib.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 |
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/*********************************************************** Copyright 1991 by Digital Equipment Corporation, Maynard, Massachusetts, and the Massachusetts Institute of Technology, Cambridge, Massachusetts. All Rights Reserved Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the names of Digital or MIT not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ******************************************************************/ /* $XFree86: xc/include/extensions/Xvlib.h,v 1.3 1999/12/11 19:28:48 mvojkovi Exp $ */ #ifndef XVLIB_H #define XVLIB_H /* ** File: ** ** Xvlib.h --- Xv library public header file ** ** Author: ** ** David Carver (Digital Workstation Engineering/Project Athena) ** ** Revisions: ** ** 26.06.91 Carver ** - changed XvFreeAdaptors to XvFreeAdaptorInfo ** - changed XvFreeEncodings to XvFreeEncodingInfo ** ** 11.06.91 Carver ** - changed SetPortControl to SetPortAttribute ** - changed GetPortControl to GetPortAttribute ** - changed QueryBestSize ** ** 05.15.91 Carver ** - version 2.0 upgrade ** ** 01.24.91 Carver ** - version 1.4 upgrade ** */ #include <X11/Xfuncproto.h> #include "Xv.h" #include "SDL_name.h" typedef struct { int numerator; int denominator; } SDL_NAME(XvRational); typedef struct { int flags; /* XvGettable, XvSettable */ int min_value; int max_value; char *name; } SDL_NAME(XvAttribute); typedef struct { XvEncodingID encoding_id; char *name; unsigned long width; unsigned long height; SDL_NAME(XvRational) rate; unsigned long num_encodings; } SDL_NAME(XvEncodingInfo); typedef struct { char depth; unsigned long visual_id; } SDL_NAME(XvFormat); typedef struct { XvPortID base_id; unsigned long num_ports; char type; char *name; unsigned long num_formats; SDL_NAME(XvFormat) * formats; unsigned long num_adaptors; } SDL_NAME(XvAdaptorInfo); typedef struct { int type; unsigned long serial; /* # of last request processed by server */ Bool send_event; /* true if this came from a SendEvent request */ Display *display; /* Display the event was read from */ Drawable drawable; /* drawable */ unsigned long reason; /* what generated this event */ XvPortID port_id; /* what port */ Time time; /* milliseconds */ } SDL_NAME(XvVideoNotifyEvent); typedef struct { int type; unsigned long serial; /* # of last request processed by server */ Bool send_event; /* true if this came from a SendEvent request */ Display *display; /* Display the event was read from */ XvPortID port_id; /* what port */ Time time; /* milliseconds */ Atom attribute; /* atom that identifies attribute */ long value; /* value of attribute */ } SDL_NAME(XvPortNotifyEvent); typedef union { int type; SDL_NAME(XvVideoNotifyEvent) xvvideo; SDL_NAME(XvPortNotifyEvent) xvport; long pad[24]; } SDL_NAME(XvEvent); typedef struct { int id; /* Unique descriptor for the format */ int type; /* XvRGB, XvYUV */ int byte_order; /* LSBFirst, MSBFirst */ char guid[16]; /* Globally Unique IDentifier */ int bits_per_pixel; int format; /* XvPacked, XvPlanar */ int num_planes; /* for RGB formats only */ int depth; unsigned int red_mask; unsigned int green_mask; unsigned int blue_mask; /* for YUV formats only */ unsigned int y_sample_bits; unsigned int u_sample_bits; unsigned int v_sample_bits; unsigned int horz_y_period; unsigned int horz_u_period; unsigned int horz_v_period; unsigned int vert_y_period; unsigned int vert_u_period; unsigned int vert_v_period; char component_order[32]; /* eg. UYVY */ int scanline_order; /* XvTopToBottom, XvBottomToTop */ } SDL_NAME(XvImageFormatValues); typedef struct { int id; int width, height; int data_size; /* bytes */ int num_planes; int *pitches; /* bytes */ int *offsets; /* bytes */ char *data; XPointer obdata; } SDL_NAME(XvImage); _XFUNCPROTOBEGIN extern int SDL_NAME(XvQueryExtension) ( #if NeedFunctionPrototypes Display * /* display */ , unsigned int * /* p_version */ , unsigned int * /* p_revision */ , unsigned int * /* p_requestBase */ , unsigned int * /* p_eventBase */ , unsigned int * /* p_errorBase */ #endif ); extern int SDL_NAME(XvQueryAdaptors) ( #if NeedFunctionPrototypes Display * /* display */ , Window /* window */ , unsigned int * /* p_nAdaptors */ , SDL_NAME(XvAdaptorInfo) ** /* p_pAdaptors */ #endif ); extern int SDL_NAME(XvQueryEncodings) ( #if NeedFunctionPrototypes Display * /* display */ , XvPortID /* port */ , unsigned int * /* p_nEncoding */ , SDL_NAME(XvEncodingInfo) ** /* p_pEncoding */ #endif ); extern int SDL_NAME(XvPutVideo) ( #if NeedFunctionPrototypes Display * /* display */ , XvPortID /* port */ , Drawable /* d */ , GC /* gc */ , int /* vx */ , int /* vy */ , unsigned int /* vw */ , unsigned int /* vh */ , int /* dx */ , int /* dy */ , unsigned int /* dw */ , unsigned int /* dh */ #endif ); extern int SDL_NAME(XvPutStill) ( #if NeedFunctionPrototypes Display * /* display */ , XvPortID /* port */ , Drawable /* d */ , GC /* gc */ , int /* vx */ , int /* vy */ , unsigned int /* vw */ , unsigned int /* vh */ , int /* dx */ , int /* dy */ , unsigned int /* dw */ , unsigned int /* dh */ #endif ); extern int SDL_NAME(XvGetVideo) ( #if NeedFunctionPrototypes Display * /* display */ , XvPortID /* port */ , Drawable /* d */ , GC /* gc */ , int /* vx */ , int /* vy */ , unsigned int /* vw */ , unsigned int /* vh */ , int /* dx */ , int /* dy */ , unsigned int /* dw */ , unsigned int /* dh */ #endif ); extern int SDL_NAME(XvGetStill) ( #if NeedFunctionPrototypes Display * /* display */ , XvPortID /* port */ , Drawable /* d */ , GC /* gc */ , int /* vx */ , int /* vy */ , unsigned int /* vw */ , unsigned int /* vh */ , int /* dx */ , int /* dy */ , unsigned int /* dw */ , unsigned int /* dh */ #endif ); extern int SDL_NAME(XvStopVideo) ( #if NeedFunctionPrototypes Display * /* display */ , XvPortID /* port */ , Drawable /* drawable */ #endif ); extern int SDL_NAME(XvGrabPort) ( #if NeedFunctionPrototypes Display * /* display */ , XvPortID /* port */ , Time /* time */ #endif ); extern int SDL_NAME(XvUngrabPort) ( #if NeedFunctionPrototypes Display * /* display */ , XvPortID /* port */ , Time /* time */ #endif ); extern int SDL_NAME(XvSelectVideoNotify) ( #if NeedFunctionPrototypes Display * /* display */ , Drawable /* drawable */ , Bool /* onoff */ #endif ); extern int SDL_NAME(XvSelectPortNotify) ( #if NeedFunctionPrototypes Display * /* display */ , XvPortID /* port */ , Bool /* onoff */ #endif ); extern int SDL_NAME(XvSetPortAttribute) ( #if NeedFunctionPrototypes Display * /* display */ , XvPortID /* port */ , Atom /* attribute */ , int /* value */ #endif ); extern int SDL_NAME(XvGetPortAttribute) ( #if NeedFunctionPrototypes Display * /* display */ , XvPortID /* port */ , Atom /* attribute */ , int * /* p_value */ #endif ); extern int SDL_NAME(XvQueryBestSize) ( #if NeedFunctionPrototypes Display * /* display */ , XvPortID /* port */ , Bool /* motion */ , unsigned int /* vid_w */ , unsigned int /* vid_h */ , unsigned int /* drw_w */ , unsigned int /* drw_h */ , unsigned int * /* p_actual_width */ , unsigned int * /* p_actual_width */ #endif ); extern SDL_NAME(XvAttribute) * SDL_NAME(XvQueryPortAttributes) ( #if NeedFunctionPrototypes Display * /* display */ , XvPortID /* port */ , int * /* number */ #endif ); extern void SDL_NAME(XvFreeAdaptorInfo) ( #if NeedFunctionPrototypes SDL_NAME(XvAdaptorInfo) * /* adaptors */ #endif ); extern void SDL_NAME(XvFreeEncodingInfo) ( #if NeedFunctionPrototypes SDL_NAME(XvEncodingInfo) * /* encodings */ #endif ); extern SDL_NAME(XvImageFormatValues) * SDL_NAME(XvListImageFormats) ( #if NeedFunctionPrototypes Display * display, XvPortID port_id, int *count_return #endif ); extern SDL_NAME(XvImage) * SDL_NAME(XvCreateImage) ( #if NeedFunctionPrototypes Display * display, XvPortID port, int id, char *data, int width, int height #endif ); extern int SDL_NAME(XvPutImage) ( #if NeedFunctionPrototypes Display * display, XvPortID id, Drawable d, GC gc, SDL_NAME(XvImage) * image, int src_x, int src_y, unsigned int src_w, unsigned int src_h, int dest_x, int dest_y, unsigned int dest_w, unsigned int dest_h #endif ); extern int SDL_NAME(XvShmPutImage) ( #if NeedFunctionPrototypes Display * display, XvPortID id, Drawable d, GC gc, SDL_NAME(XvImage) * image, int src_x, int src_y, unsigned int src_w, unsigned int src_h, int dest_x, int dest_y, unsigned int dest_w, unsigned int dest_h, Bool send_event #endif ); #ifdef _XSHM_H_ extern SDL_NAME(XvImage) * SDL_NAME(XvShmCreateImage) ( #if NeedFunctionPrototypes Display * display, XvPortID port, int id, char *data, int width, int height, XShmSegmentInfo * shminfo #endif ); #endif _XFUNCPROTOEND #endif /* XVLIB_H */ /* vi: set ts=4 sw=4 expandtab: */