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