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annotate src/video/xbios/SDL_xbios_sb3.c @ 4170:092c0bc69155 SDL-1.2

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Fixed bug #618 Description From Tim Angus 2008-08-30 12:23:56 (-) [reply] As we all know SDL 1.2 doesn't handle dead keys well since one key press potentially equals two (or more) characters. For example, on many layouts, keying <backquote>,<space> results in <no character>,<backquote><space>. Since the unicode member of the SDL_keysym struct only has room for one character, only one can be returned. On Linux, the first character is returned. On Windows however, unless the exact number of characters generated by the keypress is 1, nothing is returned. The following patch addresses this inconsistency. Updated patch which includes a further fix to the handling of the numpad when numlock is on. This further fix is courtesy Amanieu d'Antras.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 13 Apr 2009 08:42:09 +0000
parents a1b03ba2fcd0
children 05c9e942cc46
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 /*
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25 ScreenBlaster 3 functions
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26
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27 Patrice Mandin
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28 */
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29
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30 /*--- Includes ---*/
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31
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32 #include "SDL_stdinc.h"
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33 #include "SDL_xbios.h"
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34 #include "SDL_xbios_sb3.h"
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35
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36 /*--- Defines ---*/
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37
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38 const int SDL_XBIOS_scpn_planes_device[]={
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39 SCPN_DEV_1BPP,
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40 SCPN_DEV_4BPP,
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41 SCPN_DEV_8BPP,
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42 SCPN_DEV_16BPP,
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43 SCPN_DEV_2BPP,
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44 SCPN_DEV_4BPP,
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45 SCPN_DEV_1BPP
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46 };
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47
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48 /*--- Functions ---*/
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49
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50 int SDL_XBIOS_SB3Usable(scpn_cookie_t *cookie_scpn)
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51 {
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52 scpn_screeninfo_t *scrinfo;
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53 int bpp;
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54
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55 /* Check if current SB3 mode is usable, i.e. 8 or 16bpp */
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56 scrinfo = cookie_scpn->screen_info;
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57 bpp = 1<<(SDL_XBIOS_scpn_planes_device[scrinfo->device]);
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58
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59 if ((bpp==8) || (bpp==16)) {
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60 return 1;
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61 }
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62
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63 return 0;
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64 }
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65
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66 void SDL_XBIOS_SB3Init(_THIS, scpn_cookie_t *cookie_scpn)
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67 {
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68 scpn_screeninfo_t *scrinfo;
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69
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70 /* SB3 prevent changing video modes, we can only use current one */
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71 if (XBIOS_modelist) {
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72 SDL_free(XBIOS_modelist);
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73 XBIOS_nummodes = 0;
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74 XBIOS_modelist = NULL;
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75 }
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76
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77 scrinfo = cookie_scpn->screen_info;
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78 scrinfo->h_pos = scrinfo->v_pos = 0;
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79
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80 SDL_XBIOS_AddMode(this,
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81 -1,
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82 scrinfo->virtual_width, scrinfo->virtual_height,
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83 1<<(SDL_XBIOS_scpn_planes_device[scrinfo->device]),
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84 SDL_FALSE
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85 );
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86 }