Mercurial > sdl-ios-xcode
annotate src/video/x11/SDL_x11dga.c @ 441:598b25b9bffe
Zeroed out SDL_Surface::unused1 so glSDL will work on stock SDL
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 17 Aug 2002 19:17:01 +0000 |
| parents | f6ffac90895c |
| children | b8d311d90021 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
297
f6ffac90895c
Updated copyright information for 2002
Sam Lantinga <slouken@libsdl.org>
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* This is currently only used to enable DGA mouse. | |
| 29 The new fullscreen code makes it very difficult to handle DGA dynamically. | |
| 30 There will be a completely separate DGA driver that is fullscreen-only. | |
| 31 */ | |
| 32 | |
| 33 #include <stdlib.h> /* For getenv() */ | |
| 34 #include "SDL_video.h" | |
| 35 #include "SDL_cursor_c.h" | |
| 36 #include "SDL_x11dga_c.h" | |
| 37 | |
| 38 /* Global for the error handler */ | |
| 39 int dga_event, dga_error = -1; | |
| 40 | |
| 41 void X11_EnableDGAMouse(_THIS) | |
| 42 { | |
| 43 #ifdef XFREE86_DGAMOUSE | |
| 44 int dga_major, dga_minor; | |
| 45 int use_dgamouse; | |
| 46 const char *env_use_dgamouse; | |
| 47 | |
| 48 /* Check configuration to see if we should use DGA mouse */ | |
| 49 #ifdef DEFAULT_DGAMOUSE | |
| 50 use_dgamouse = 1; | |
| 51 #else | |
| 52 use_dgamouse = 0; | |
| 53 #endif | |
| 54 env_use_dgamouse = getenv("SDL_VIDEO_X11_DGAMOUSE"); | |
| 55 if ( env_use_dgamouse ) { | |
| 56 use_dgamouse = atoi(env_use_dgamouse); | |
| 57 } | |
| 58 /* Check for buggy X servers */ | |
| 59 if ( use_dgamouse && BUGGY_XFREE86(==, 4000) ) { | |
| 60 use_dgamouse = 0; | |
| 61 } | |
| 62 /* Only use DGA mouse if the cursor is not showing (in relative mode) */ | |
| 63 if ( use_dgamouse && local_X11 && !(using_dga & DGA_MOUSE) && | |
|
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eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
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252
diff
changeset
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64 SDL_NAME(XF86DGAQueryExtension)(SDL_Display, &dga_event, &dga_error) && |
|
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
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65 SDL_NAME(XF86DGAQueryVersion)(SDL_Display, &dga_major, &dga_minor) ) { |
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eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
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66 if ( SDL_NAME(XF86DGADirectVideo)(SDL_Display, SDL_Screen, XF86DGADirectMouse) ) { |
| 0 | 67 using_dga |= DGA_MOUSE; |
| 68 } | |
| 69 } | |
| 70 #endif /* XFREE86_DGAMOUSE */ | |
| 71 } | |
| 72 | |
| 73 /* Argh. Glide resets DGA mouse mode when it makes the context current! */ | |
| 74 void X11_CheckDGAMouse(_THIS) | |
| 75 { | |
| 76 #ifdef XFREE86_DGAMOUSE | |
| 77 int flags; | |
| 78 | |
| 79 if ( using_dga & DGA_MOUSE ) { | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
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80 SDL_NAME(XF86DGAQueryDirectVideo)(SDL_Display, SDL_Screen, &flags); |
| 0 | 81 if ( ! (flags & XF86DGADirectMouse) ) { |
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292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
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82 SDL_NAME(XF86DGADirectVideo)(SDL_Display,SDL_Screen,XF86DGADirectMouse); |
| 0 | 83 } |
| 84 } | |
| 85 #endif | |
| 86 } | |
| 87 | |
| 88 void X11_DisableDGAMouse(_THIS) | |
| 89 { | |
| 90 #ifdef XFREE86_DGAMOUSE | |
| 91 if ( using_dga & DGA_MOUSE ) { | |
|
292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
92 SDL_NAME(XF86DGADirectVideo)(SDL_Display, SDL_Screen, 0); |
| 0 | 93 using_dga &= ~DGA_MOUSE; |
| 94 } | |
| 95 #endif /* XFREE86_DGAMOUSE */ | |
| 96 } |