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 (at) 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 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 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 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
