Mercurial > sdl-ios-xcode
annotate src/joystick/SDL_sysjoystick.h @ 1554:0ca607a5d173
Fixed bug #84
Date: Sun, 23 Oct 2005 16:39:03 +0200
From: "A. Schmid" <sahib@phreaker.net>
Subject: [SDL] no software surfaces with svgalib driver?
Hi,
I noticed that the SDL (1.2.9) svgalib driver only makes use of linear
addressable (framebuffer) video modes. On older systems (like one of
mine), linear addressable modes are often not available.
Especially for cards with VESA VBE < 2.0 the svgalib vesa driver is
unusable, since VESA only supports framebuffering for VBE 2.0 and later.
The changes necessary to add support for software surfaces seem to be
relatively small. I only had to hack src/video/svga/SDL_svgavideo.c (see
attached patch). The code worked fine for me, but it is no more than a
proof of concept and should be reviewed (probably has a memory leak when
switching modes). It also uses the vgagl library (included in the
svgalib package) and needs to be linked against it.
-Alex
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 19 Mar 2006 12:04:40 +0000 |
| parents | d910939febfa |
| children | 782fd950bd46 c121d94672cb a1b03ba2fcd0 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
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5 This library is SDL_free software; you can redistribute it and/or |
|
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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:
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20 slouken@libsdl.org |
| 0 | 21 */ |
|
1402
d910939febfa
Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents:
1336
diff
changeset
|
22 #include "SDL_config.h" |
| 0 | 23 |
| 24 /* This is the system specific header for the SDL joystick API */ | |
| 25 | |
| 26 #include "SDL_joystick.h" | |
| 27 | |
| 28 /* The SDL joystick structure */ | |
| 29 struct _SDL_Joystick { | |
| 30 Uint8 index; /* Device index */ | |
| 31 const char *name; /* Joystick name - system dependent */ | |
| 32 | |
| 33 int naxes; /* Number of axis controls on the joystick */ | |
| 34 Sint16 *axes; /* Current axis states */ | |
| 35 | |
| 36 int nhats; /* Number of hats on the joystick */ | |
| 37 Uint8 *hats; /* Current hat states */ | |
| 38 | |
| 39 int nballs; /* Number of trackballs on the joystick */ | |
| 40 struct balldelta { | |
| 41 int dx; | |
| 42 int dy; | |
| 43 } *balls; /* Current ball motion deltas */ | |
| 44 | |
| 45 int nbuttons; /* Number of buttons on the joystick */ | |
| 46 Uint8 *buttons; /* Current button states */ | |
| 47 | |
| 48 struct joystick_hwdata *hwdata; /* Driver dependent information */ | |
| 49 | |
| 50 int ref_count; /* Reference count for multiple opens */ | |
| 51 }; | |
| 52 | |
| 53 /* Function to scan the system for joysticks. | |
| 54 * Joystick 0 should be the system default joystick. | |
| 55 * This function should return the number of available joysticks, or -1 | |
| 56 * on an unrecoverable fatal error. | |
| 57 */ | |
| 58 extern int SDL_SYS_JoystickInit(void); | |
| 59 | |
| 60 /* Function to get the device-dependent name of a joystick */ | |
| 61 extern const char *SDL_SYS_JoystickName(int index); | |
| 62 | |
| 63 /* Function to open a joystick for use. | |
| 64 The joystick to open is specified by the index field of the joystick. | |
| 65 This should fill the nbuttons and naxes fields of the joystick structure. | |
| 66 It returns 0, or -1 if there is an error. | |
| 67 */ | |
| 68 extern int SDL_SYS_JoystickOpen(SDL_Joystick *joystick); | |
| 69 | |
| 70 /* Function to update the state of a joystick - called as a device poll. | |
| 71 * This function shouldn't update the joystick structure directly, | |
| 72 * but instead should call SDL_PrivateJoystick*() to deliver events | |
| 73 * and update joystick device state. | |
| 74 */ | |
| 75 extern void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick); | |
| 76 | |
| 77 /* Function to close a joystick after use */ | |
| 78 extern void SDL_SYS_JoystickClose(SDL_Joystick *joystick); | |
| 79 | |
| 80 /* Function to perform any system-specific joystick related cleanup */ | |
| 81 extern void SDL_SYS_JoystickQuit(void); | |
| 82 |