Mercurial > sdl-ios-xcode
view src/video/dga/SDL_dgaevents.c @ 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 | b8f167923bfc |
children | 0c105755b110 |
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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 /* Handle the event stream, converting DGA events into SDL events */ #include <stdio.h> #include <X11/Xlib.h> #include <XFree86/extensions/xf86dga.h> #include "SDL_sysvideo.h" #include "SDL_events_c.h" #include "SDL_dgavideo.h" #include "SDL_dgaevents_c.h" /* get function pointers... */ #include "../x11/SDL_x11dyn.h" /* Heheh we're using X11 event code */ extern int X11_Pending(Display *display); extern void X11_InitKeymap(void); extern SDL_keysym *X11_TranslateKey(Display *display, XIC ic, XKeyEvent *xkey, KeyCode kc, SDL_keysym *keysym); static int DGA_DispatchEvent(_THIS) { int posted; SDL_NAME(XDGAEvent) xevent; pXNextEvent(DGA_Display, (XEvent *)&xevent); posted = 0; xevent.type -= DGA_event_base; switch (xevent.type) { /* Mouse motion? */ case MotionNotify: { if ( SDL_VideoSurface ) { posted = SDL_PrivateMouseMotion(0, 1, xevent.xmotion.dx, xevent.xmotion.dy); } } break; /* Mouse button press? */ case ButtonPress: { posted = SDL_PrivateMouseButton(SDL_PRESSED, xevent.xbutton.button, 0, 0); } break; /* Mouse button release? */ case ButtonRelease: { posted = SDL_PrivateMouseButton(SDL_RELEASED, xevent.xbutton.button, 0, 0); } break; /* Key press or release? */ case KeyPress: case KeyRelease: { SDL_keysym keysym; XKeyEvent xkey; SDL_NAME(XDGAKeyEventToXKeyEvent)(&xevent.xkey, &xkey); posted = SDL_PrivateKeyboard((xevent.type == KeyPress), X11_TranslateKey(DGA_Display, NULL/*no XIC*/, &xkey, xkey.keycode, &keysym)); } break; } return(posted); } void DGA_PumpEvents(_THIS) { /* Keep processing pending events */ LOCK_DISPLAY(); while ( X11_Pending(DGA_Display) ) { DGA_DispatchEvent(this); } UNLOCK_DISPLAY(); } void DGA_InitOSKeymap(_THIS) { X11_InitKeymap(); }