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4195
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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 Milan Xbios video 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 #include <mint/cookie.h>
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31
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32 #include "SDL_xbios.h"
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33 #include "SDL_xbios_milan.h"
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34
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35 #ifndef Validmode
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36 #define Validmode(mode) \
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37 (short)trap_14_ww((short)0x5f,(short)(mode))
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38 #endif
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39
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40 #define NUM_PREDEFINED_MODES 7
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41
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42 typedef struct {
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43 Uint16 width, height;
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44 } predefined_mode_t;
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45
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46 static const predefined_mode_t mode_list[NUM_PREDEFINED_MODES]={
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47 {640,400},
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48 {640,480},
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49 {800,608},
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50 {1024,768},
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51 {1152,864},
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52 {1280,1024},
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53 {1600,1200}
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54 };
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55
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56 static const Uint8 mode_bpp[4]={
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57 8, 15, 16, 32
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58 };
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59
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60 void SDL_XBIOS_ListMilanModes(_THIS, int actually_add)
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61 {
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62 int i;
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63
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64 /* Read infos about current mode */
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65
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66 /* Read validated predefined modes */
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67 for (i=0; i<NUM_PREDEFINED_MODES; i++) {
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68 int j;
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69 Uint16 deviceid = 0x1000 + (i<<4);
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70
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71 for (j=1; j<4; j++) {
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72 if (Validmode(deviceid + j)) {
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73 xbiosmode_t modeinfo;
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74
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75 modeinfo.number = deviceid + j;
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76 modeinfo.width = mode_list[i].width;
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77 modeinfo.height = mode_list[i].height;
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78 modeinfo.depth = mode_bpp[j-1];
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79 modeinfo.doubleline = SDL_FALSE;
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80
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81 SDL_XBIOS_AddMode(this, actually_add, &modeinfo);
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82 }
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83 }
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84 }
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85
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86 /* Read custom created modes */
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87 }
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