Mercurial > sdl-ios-xcode
annotate src/video/xbios/SDL_xbios_sb3.h @ 4256:ba587a51f899 SDL-1.2
Vitaly Minko to slouken
Hi all,
I wrote a patch, which allows user to rotate the screen in case of fbcon driver.
The rotation angle is controlled by SDL_VIDEO_FBCON_ROTATION environment variable and possible values are:
not set - Not rotating, no shadow.
"NONE" - Not rotating, but still using shadow.
"CW" - Rotating screen clockwise.
"UD" - Rotating screen upside down.
"CCW" - Rotating screen counter clockwise.
The patch is based on wscons driver, written by Staffan Ulfberg.
I tested it on
Device: Sharp Zaurus SL-C1000
SDL version: 1.2.13
Kernel version: 2.6.24.4
Best regards,
Vitaly.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Mon, 28 Sep 2009 06:23:22 +0000 |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
4159 | 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 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 #ifndef _SDL_xbios_sb3_h_ |
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31 #define _SDL_xbios_sb3_h_ |
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32 |
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33 /*--- Defines ---*/ |
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34 |
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35 #ifndef C_SCPN |
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36 #define C_SCPN 0x5343504EL |
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37 #endif |
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38 |
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39 #define SCPN_DEV_1BPP 0 |
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40 #define SCPN_DEV_2BPP 1 |
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41 #define SCPN_DEV_4BPP 2 |
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42 #define SCPN_DEV_8BPP 3 |
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43 #define SCPN_DEV_16BPP 4 |
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44 |
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45 extern const int SDL_XBIOS_scpn_planes_device[]; |
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46 |
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47 /*--- Types ---*/ |
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48 |
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49 typedef struct { |
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50 unsigned short virtual_width; /* Virtual screen width */ |
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51 unsigned short virtual_height; /* Virtual screen height */ |
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52 unsigned short visible_width; /* Visible width */ |
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53 unsigned short visible_height; /* Visible height */ |
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54 unsigned short h_pos; /* Horizontal position in virtual screen */ |
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55 unsigned short v_pos; /* Vertical position in virtual screen */ |
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56 unsigned short dummy; |
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57 unsigned long size; /* Size of screen in bytes */ |
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58 unsigned short device; /* Device number to find planes = getRez() */ |
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59 /* = Index in scpn_planes_device[] */ |
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60 } __attribute__((packed)) scpn_screeninfo_t; |
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61 |
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62 typedef struct { |
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63 unsigned long magic; /* just a BRA assembler jump */ |
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64 unsigned short version; |
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65 void *dummy1; |
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66 unsigned short ptsout0_1; |
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67 unsigned short ptsout0_2; |
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68 unsigned short dummy3; |
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69 unsigned char date[8]; /* Date of program build */ |
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70 unsigned char asm_string[30]; /* 10 times the 'ASM' string */ |
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71 unsigned short dummy4; |
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72 scpn_screeninfo_t *screen_info; |
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73 unsigned short dummy6; |
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74 } __attribute__((packed)) scpn_cookie_t; |
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75 |
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76 /*--- Function prototypes ---*/ |
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77 |
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78 int SDL_XBIOS_SB3Usable(scpn_cookie_t *cookie_scpn); |
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79 |
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80 void SDL_XBIOS_ListSB3Modes(_THIS, int actually_add, scpn_cookie_t *cookie_scpn); |
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81 |
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82 #endif /* _SDL_xbios_sb3_h_ */ |