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comparison src/video/xbios/SDL_xbios_milan.c @ 4195:13de8ea401db SDL-1.2

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Start Milan video support
author Patrice Mandin <patmandin@gmail.com>
date Sat, 19 Sep 2009 13:21:05 +0000
parents
children 89c7562eae9b
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4194:05c9e942cc46 4195:13de8ea401db
1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2009 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License as published by the Free Software Foundation; either
8 version 2 of the License, or (at your option) any later version.
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
13 Library General Public License for more details.
14
15 You should have received a copy of the GNU Library General Public
16 License along with this library; if not, write to the Free
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
19 Sam Lantinga
20 slouken@libsdl.org
21 */
22 #include "SDL_config.h"
23
24 /*
25 Milan Xbios video functions
26
27 Patrice Mandin
28 */
29
30 #include <mint/cookie.h>
31
32 #include "SDL_xbios.h"
33 #include "SDL_xbios_milan.h"
34
35 #ifndef Validmode
36 #define Validmode(mode) \
37 (short)trap_14_ww((short)0x5f,(short)(mode))
38 #endif
39
40 #define NUM_PREDEFINED_MODES 7
41
42 typedef struct {
43 Uint16 width, height;
44 } predefined_mode_t;
45
46 static const predefined_mode_t mode_list[NUM_PREDEFINED_MODES]={
47 {640,400},
48 {640,480},
49 {800,608},
50 {1024,768},
51 {1152,864},
52 {1280,1024},
53 {1600,1200}
54 };
55
56 static const Uint8 mode_bpp[4]={
57 8, 15, 16, 32
58 };
59
60 void SDL_XBIOS_ListMilanModes(_THIS, int actually_add)
61 {
62 int i;
63
64 /* Read infos about current mode */
65
66 /* Read validated predefined modes */
67 for (i=0; i<NUM_PREDEFINED_MODES; i++) {
68 int j;
69 Uint16 deviceid = 0x1000 + (i<<4);
70
71 for (j=1; j<4; j++) {
72 if (Validmode(deviceid + j)) {
73 xbiosmode_t modeinfo;
74
75 modeinfo.number = deviceid + j;
76 modeinfo.width = mode_list[i].width;
77 modeinfo.height = mode_list[i].height;
78 modeinfo.depth = mode_bpp[j-1];
79 modeinfo.doubleline = SDL_FALSE;
80
81 SDL_XBIOS_AddMode(this, actually_add, &modeinfo);
82 }
83 }
84 }
85
86 /* Read custom created modes */
87 }