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annotate src/video/xbios/SDL_xbios_centscreen.c @ 1662:782fd950bd46 SDL-1.3

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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid. The code is now run through a consistent indent format: indent -i4 -nut -nsc -br -ce The headers are being converted to automatically generate doxygen documentation.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 28 May 2006 13:04:16 +0000
parents d910939febfa
children 4da1ee79c9af
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 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 Centscreen extension definitions
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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/falcon.h>
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31
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32 #include "SDL_xbios.h"
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33 #include "SDL_xbios_centscreen.h"
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34
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35 int
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36 SDL_XBIOS_CentscreenInit (_THIS)
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37 {
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38 centscreen_mode_t curmode, listedmode;
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39 unsigned long result;
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40 int cur_handle; /* Current Centscreen mode handle */
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41
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42 /* Reset current mode list */
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43 if (XBIOS_modelist) {
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44 SDL_free (XBIOS_modelist);
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45 XBIOS_nummodes = 0;
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46 XBIOS_modelist = NULL;
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47 }
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48
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49 /* Add Centscreen modes */
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50 Vread (&curmode);
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51 cur_handle = curmode.handle;
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52 curmode.mode = curmode.physx = curmode.physy = curmode.plan =
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53 curmode.logx = curmode.logy = -1;
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54
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55 result = Vfirst (&curmode, &listedmode);
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56 if (result == 0) {
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57 while (result == 0) {
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58 /* Don't add modes with virtual screen */
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59 if ((listedmode.mode & CSCREEN_VIRTUAL) == 0) {
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60 /* Don't add modes with bpp<8 */
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61 if (listedmode.plan >= 8) {
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62 SDL_XBIOS_AddMode (this, listedmode.mode,
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63 listedmode.physx,
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64 listedmode.physy,
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65 listedmode.plan, SDL_FALSE);
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66 }
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67 }
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68 SDL_memcpy (&curmode, &listedmode, sizeof (centscreen_mode_t));
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69 curmode.mode = curmode.physx = curmode.physy = curmode.plan =
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70 curmode.logx = curmode.logy = -1;
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71 result = Vnext (&curmode, &listedmode);
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72 }
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73 } else {
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74 fprintf (stderr, "No suitable Centscreen modes\n");
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75 }
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76
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77 return cur_handle;
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78 }
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79
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80 void
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81 SDL_XBIOS_CentscreenSetmode (_THIS, int width, int height, int planes)
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82 {
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83 centscreen_mode_t newmode, curmode;
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84
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85 newmode.handle = newmode.mode = newmode.logx = newmode.logy = -1;
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86 newmode.physx = width;
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87 newmode.physy = height;
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88 newmode.plan = planes;
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89 Vwrite (0, &newmode, &curmode);
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90
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91 /* Disable screensaver */
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92 Vread (&newmode);
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93 newmode.mode &= ~(CSCREEN_SAVER | CSCREEN_ENERGYSTAR);
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94 Vwrite (0, &newmode, &curmode);
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95 }
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96
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97 void
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98 SDL_XBIOS_CentscreenRestore (_THIS, int prev_handle)
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99 {
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100 centscreen_mode_t newmode, curmode;
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101
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102 /* Restore old video mode */
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103 newmode.handle = prev_handle;
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104 newmode.mode = newmode.physx = newmode.physy = newmode.plan =
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105 newmode.logx = newmode.logy = -1;
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106 Vwrite (0, &newmode, &curmode);
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107 }
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108
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109 /* vi: set ts=4 sw=4 expandtab: */