1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2012 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 Centscreen extension definitions
26
27 Patrice Mandin
28 */
29
30 #include <mint/falcon.h>
31
32 #include "SDL_xbios.h"
33 #include "SDL_xbios_centscreen.h"
34
SDL_XBIOS_ListCentscreenModes(_THIS,int actually_add)35 int SDL_XBIOS_ListCentscreenModes(_THIS, int actually_add)
36 {
37 centscreen_mode_t curmode, listedmode;
38 unsigned long result;
39 int cur_handle; /* Current Centscreen mode handle */
40
41 /* Add Centscreen modes */
42 Vread(&curmode);
43 cur_handle = curmode.handle;
44 curmode.mode = curmode.physx = curmode.physy = curmode.plan =
45 curmode.logx = curmode.logy = -1;
46
47 result = Vfirst(&curmode, &listedmode);
48 if (result==0) {
49 while (result==0) {
50 /* Don't add modes with virtual screen */
51 if ((listedmode.mode & CSCREEN_VIRTUAL)==0) {
52 /* Don't add modes with bpp<8 */
53 if (listedmode.plan>=8) {
54 xbiosmode_t modeinfo;
55
56 modeinfo.number = listedmode.mode;
57 modeinfo.width = listedmode.physx;
58 modeinfo.height = listedmode.physy;
59 modeinfo.depth = listedmode.plan;
60 modeinfo.flags = (modeinfo.depth == 8 ? XBIOSMODE_C2P : 0);
61
62 SDL_XBIOS_AddMode(this, actually_add, &modeinfo);
63 }
64 }
65 SDL_memcpy(&curmode, &listedmode, sizeof(centscreen_mode_t));
66 curmode.mode = curmode.physx = curmode.physy = curmode.plan =
67 curmode.logx = curmode.logy = -1;
68 result = Vnext(&curmode, &listedmode);
69 }
70 } else {
71 fprintf(stderr, "No suitable Centscreen modes\n");
72 }
73
74 return cur_handle;
75 }
76
SDL_XBIOS_CentscreenSetmode(_THIS,int width,int height,int planes)77 void SDL_XBIOS_CentscreenSetmode(_THIS, int width, int height, int planes)
78 {
79 centscreen_mode_t newmode, curmode;
80
81 newmode.handle = newmode.mode = newmode.logx = newmode.logy = -1;
82 newmode.physx = width;
83 newmode.physy = height;
84 newmode.plan = planes;
85 Vwrite(0, &newmode, &curmode);
86
87 #ifdef SDL_VIDEO_DISABLE_SCREENSAVER
88 /* Disable screensaver */
89 Vread(&newmode);
90 newmode.mode &= ~(CSCREEN_SAVER|CSCREEN_ENERGYSTAR);
91 Vwrite(0, &newmode, &curmode);
92 #endif /* SDL_VIDEO_DISABLE_SCREENSAVER */
93 }
94
SDL_XBIOS_CentscreenRestore(_THIS,int prev_handle)95 void SDL_XBIOS_CentscreenRestore(_THIS, int prev_handle)
96 {
97 centscreen_mode_t newmode, curmode;
98
99 /* Restore old video mode */
100 newmode.handle = prev_handle;
101 newmode.mode = newmode.physx = newmode.physy = newmode.plan =
102 newmode.logx = newmode.logy = -1;
103 Vwrite(0, &newmode, &curmode);
104 }
105