Mercurial > sdl-ios-xcode
view src/video/Xext/extensions/Xv.h @ 1240:3b8a43c428bb
From Bug #36:
There are a couple of issues with the selection of Altivec alpha-blitting
routines in CalculateAlphaBlit() in src/video/SDL_Blit_A.c.
1) There's no check for the presence of Altivec when checking if the
Blit32to565PixelAlphaAltivec() routine can be selected.
2) Altivec cannot be used in video memory, and there's no check if the
destination surface is a hardware surface. (Alpha-blitting to a hardware
surface with GPU support is a bad idea, but somebody's bound to do it anyway.)
Patch to fix these attached.
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Sun, 08 Jan 2006 21:18:15 +0000 |
parents | eadc0746dfaf |
children | 782fd950bd46 |
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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/Xv.h,v 1.5 1999/12/11 19:28:48 mvojkovi Exp $ */ #ifndef XV_H #define XV_H /* ** File: ** ** Xv.h --- Xv shared library and server header file ** ** Author: ** ** David Carver (Digital Workstation Engineering/Project Athena) ** ** Revisions: ** ** 05.15.91 Carver ** - version 2.0 upgrade ** ** 01.24.91 Carver ** - version 1.4 upgrade ** */ #include <X11/X.h> #define XvName "XVideo" #define XvVersion 2 #define XvRevision 2 /* Symbols */ typedef XID XvPortID; typedef XID XvEncodingID; #define XvNone 0 #define XvInput 0 #define XvOutput 1 #define XvInputMask (1L<<XvInput) #define XvOutputMask (1L<<XvOutput) #define XvVideoMask 0x00000004 #define XvStillMask 0x00000008 #define XvImageMask 0x00000010 /* These two are not client viewable */ #define XvPixmapMask 0x00010000 #define XvWindowMask 0x00020000 #define XvGettable 0x01 #define XvSettable 0x02 #define XvRGB 0 #define XvYUV 1 #define XvPacked 0 #define XvPlanar 1 #define XvTopToBottom 0 #define XvBottomToTop 1 /* Events */ #define XvVideoNotify 0 #define XvPortNotify 1 #define XvNumEvents 2 /* Video Notify Reasons */ #define XvStarted 0 #define XvStopped 1 #define XvBusy 2 #define XvPreempted 3 #define XvHardError 4 #define XvLastReason 4 #define XvNumReasons (XvLastReason + 1) #define XvStartedMask (1L<<XvStarted) #define XvStoppedMask (1L<<XvStopped) #define XvBusyMask (1L<<XvBusy) #define XvPreemptedMask (1L<<XvPreempted) #define XvHardErrorMask (1L<<XvHardError) #define XvAnyReasonMask ((1L<<XvNumReasons) - 1) #define XvNoReasonMask 0 /* Errors */ #define XvBadPort 0 #define XvBadEncoding 1 #define XvBadControl 2 #define XvNumErrors 3 /* Status */ #define XvBadExtension 1 #define XvAlreadyGrabbed 2 #define XvInvalidTime 3 #define XvBadReply 4 #define XvBadAlloc 5 #endif /* XV_H */