e14743d1 |
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 | #include <mint/falcon.h> |
32 | |
33 | #include "SDL_xbios.h" |
34 | #include "SDL_xbios_milan.h" |
35 | |
36 | #ifndef Validmode |
37 | #define Validmode(mode) \ |
38 | (short)trap_14_ww((short)0x5f,(short)(mode)) |
39 | #endif |
40 | |
41 | #define NUM_PREDEFINED_MODES 7 |
42 | |
43 | typedef struct { |
44 | Uint16 width, height; |
45 | } predefined_mode_t; |
46 | |
47 | static const predefined_mode_t mode_list[NUM_PREDEFINED_MODES]={ |
48 | {640,400}, |
49 | {640,480}, |
50 | {800,608}, |
51 | {1024,768}, |
52 | {1152,864}, |
53 | {1280,1024}, |
54 | {1600,1200} |
55 | }; |
56 | |
57 | static const Uint8 mode_bpp[4]={ |
58 | 8, 15, 16, 32 |
59 | }; |
60 | |
61 | /*--- Variables ---*/ |
62 | |
63 | static int enum_actually_add; |
64 | static SDL_VideoDevice *enum_this; |
65 | |
66 | /*--- Functions ---*/ |
67 | |
68 | static unsigned long /*cdecl*/ enumfunc(SCREENINFO *inf, unsigned long flag) |
69 | { |
70 | xbiosmode_t modeinfo; |
71 | |
72 | modeinfo.number = inf->devID; |
73 | modeinfo.width = inf->scrWidth; |
74 | modeinfo.height = inf->scrHeight; |
75 | modeinfo.depth = inf->scrPlanes; |
76 | modeinfo.flags = 0; |
77 | |
78 | SDL_XBIOS_AddMode(enum_this, enum_actually_add, &modeinfo); |
79 | |
80 | return ENUMMODE_CONT; |
81 | } |
82 | |
83 | void SDL_XBIOS_ListMilanModes(_THIS, int actually_add) |
84 | { |
85 | int i; |
86 | |
87 | /* Read validated predefined modes */ |
88 | for (i=0; i<NUM_PREDEFINED_MODES; i++) { |
89 | int j; |
90 | Uint16 deviceid = 0x1000 + (i<<4); |
91 | |
92 | for (j=1; j<4; j++) { |
93 | if (Validmode(deviceid + j)) { |
94 | xbiosmode_t modeinfo; |
95 | |
96 | modeinfo.number = deviceid + j; |
97 | modeinfo.width = mode_list[i].width; |
98 | modeinfo.height = mode_list[i].height; |
99 | modeinfo.depth = mode_bpp[j-1]; |
100 | modeinfo.flags = 0; |
101 | |
102 | SDL_XBIOS_AddMode(this, actually_add, &modeinfo); |
103 | } |
104 | } |
105 | } |
106 | |
107 | /* Read custom created modes */ |
108 | enum_this = this; |
109 | enum_actually_add = actually_add; |
110 | VsetScreen(-1, &enumfunc, MI_MAGIC, CMD_ENUMMODES); |
111 | } |