Mercurial > sdl-ios-xcode
view include/SDL.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 | f31856cf29ae |
children | c9b51268668f |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2004 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 */ #ifdef SAVE_RCSID static char rcsid = "@(#) $Id$"; #endif /* Main include header for the SDL library */ #ifndef _SDL_H #define _SDL_H #include "SDL_main.h" #include "SDL_types.h" #include "SDL_getenv.h" #include "SDL_error.h" #include "SDL_rwops.h" #include "SDL_timer.h" #include "SDL_audio.h" #include "SDL_cdrom.h" #include "SDL_joystick.h" #include "SDL_events.h" #include "SDL_video.h" #include "SDL_byteorder.h" #include "SDL_version.h" #include "SDL_loadso.h" #include "begin_code.h" /* Set up for C function definitions, even when using C++ */ #ifdef __cplusplus extern "C" { #endif /* As of version 0.5, SDL is loaded dynamically into the application */ /* These are the flags which may be passed to SDL_Init() -- you should specify the subsystems which you will be using in your application. */ #define SDL_INIT_TIMER 0x00000001 #define SDL_INIT_AUDIO 0x00000010 #define SDL_INIT_VIDEO 0x00000020 #define SDL_INIT_CDROM 0x00000100 #define SDL_INIT_JOYSTICK 0x00000200 #define SDL_INIT_NOPARACHUTE 0x00100000 /* Don't catch fatal signals */ #define SDL_INIT_EVENTTHREAD 0x01000000 /* Not supported on all OS's */ #define SDL_INIT_EVERYTHING 0x0000FFFF /* This function loads the SDL dynamically linked library and initializes * the subsystems specified by 'flags' (and those satisfying dependencies) * Unless the SDL_INIT_NOPARACHUTE flag is set, it will install cleanup * signal handlers for some commonly ignored fatal signals (like SIGSEGV) */ extern DECLSPEC int SDLCALL SDL_Init(Uint32 flags); /* This function initializes specific SDL subsystems */ extern DECLSPEC int SDLCALL SDL_InitSubSystem(Uint32 flags); /* This function cleans up specific SDL subsystems */ extern DECLSPEC void SDLCALL SDL_QuitSubSystem(Uint32 flags); /* This function returns mask of the specified subsystems which have been initialized. If 'flags' is 0, it returns a mask of all initialized subsystems. */ extern DECLSPEC Uint32 SDLCALL SDL_WasInit(Uint32 flags); /* This function cleans up all initialized subsystems and unloads the * dynamically linked library. You should call it upon all exit conditions. */ extern DECLSPEC void SDLCALL SDL_Quit(void); /* Ends C function definitions when using C++ */ #ifdef __cplusplus } #endif #include "close_code.h" #endif /* _SDL_H */