Mercurial > sdl-ios-xcode
annotate src/video/aalib/SDL_aavideo.h @ 4355:9b464226e541 SDL-1.2
Fixed bug #855
Ludwig Nussel 2009-10-18 06:31:52 PDT
an mprotect call was added to fix bug 528. However that results in a buffer
that allows writing and code execution. Ie the no-execute security features of
modern operating systems are defeated this way. Two mprotect calls are needed.
One to make the buffer executable but not writeable when done and another one
to make the buffer writeable again if the content needs to be changed.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 18 Oct 2009 17:31:37 +0000 |
| parents | a1b03ba2fcd0 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 4159 | 3 Copyright (C) 1997-2009 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 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 | |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
13 Lesser General Public License for more details. |
| 0 | 14 |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
15 You should have received a copy of the GNU Lesser General Public |
|
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
16 License along with this library; if not, write to the Free Software |
|
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
|
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
20 slouken@libsdl.org |
| 0 | 21 */ |
|
1402
d910939febfa
Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents:
1361
diff
changeset
|
22 #include "SDL_config.h" |
| 0 | 23 |
| 24 #ifndef _SDL_aavideo_h | |
| 25 #define _SDL_aavideo_h | |
| 26 | |
| 27 #include "SDL_mouse.h" | |
| 28 #include "SDL_mutex.h" | |
|
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
29 #include "../SDL_sysvideo.h" |
| 0 | 30 |
| 31 #include <aalib.h> | |
| 32 | |
| 33 /* Hidden "this" pointer for the video functions */ | |
| 34 #define _THIS SDL_VideoDevice *this | |
| 35 | |
| 36 #define SDL_NUMMODES 6 | |
| 37 | |
| 38 /* Private display data */ | |
| 39 struct SDL_PrivateVideoData { | |
| 40 SDL_Rect *SDL_modelist[SDL_NUMMODES+1]; | |
| 41 aa_context *context; | |
| 42 aa_palette palette; | |
| 43 aa_renderparams *rparams; | |
| 44 double x_ratio, y_ratio; | |
| 45 int w, h; | |
| 46 SDL_mutex *mutex; | |
| 47 int in_x11; | |
| 48 void *buffer; | |
| 49 }; | |
| 50 | |
| 51 /* Old variable names */ | |
| 52 #define SDL_modelist (this->hidden->SDL_modelist) | |
| 53 #define AA_context (this->hidden->context) | |
| 54 #define AA_palette (this->hidden->palette) | |
| 55 #define AA_rparams (this->hidden->rparams) | |
| 56 #define AA_buffer (this->hidden->buffer) | |
| 57 | |
| 58 #define AA_x_ratio (this->hidden->x_ratio) | |
| 59 #define AA_y_ratio (this->hidden->y_ratio) | |
| 60 | |
| 61 #define AA_mutex (this->hidden->mutex) | |
| 62 #define AA_in_x11 (this->hidden->in_x11) | |
| 63 #define AA_w (this->hidden->w) | |
| 64 #define AA_h (this->hidden->h) | |
| 65 | |
| 66 #endif /* _SDL_aavideo_h */ |