| 1 | /* FCE Ultra - NES/Famicom Emulator |
| 2 | * |
| 3 | * Copyright notice for this file: |
| 4 | * Copyright (C) 2002 Ben Parnell |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | |
| 21 | #include <stdio.h> |
| 22 | #include <string.h> |
| 23 | #include <stdlib.h> |
| 24 | |
| 25 | #include "sdl.h" |
| 26 | #include "../common/vidblit.h" |
| 27 | |
| 28 | #define _sline srendline |
| 29 | #define _eline erendline |
| 30 | |
| 31 | SDL_Surface *screen; |
| 32 | |
| 33 | static int tlines; |
| 34 | static int inited=0; |
| 35 | |
| 36 | static int exs,eys,eefx; |
| 37 | #define NWIDTH (256-((eoptions&EO_CLIPSIDES)?16:0)) |
| 38 | #define NOFFSET (32-8+(eoptions&EO_CLIPSIDES?8:0)) |
| 39 | |
| 40 | static void CleanSurface(void) |
| 41 | { |
| 42 | uint32 x; |
| 43 | |
| 44 | x=screen->pitch*screen->h; |
| 45 | |
| 46 | if(SDL_MUSTLOCK(screen)) |
| 47 | SDL_LockSurface(screen); |
| 48 | |
| 49 | memset((uint8*)screen->pixels, 0x80, x); |
| 50 | |
| 51 | if(SDL_MUSTLOCK(screen)) |
| 52 | SDL_UnlockSurface(screen); |
| 53 | |
| 54 | SDL_UpdateRect(screen, 0, 0, 0, 0); |
| 55 | } |
| 56 | |
| 57 | static int paletterefresh; |
| 58 | |
| 59 | void KillVideo(void) |
| 60 | { |
| 61 | if(inited&1) |
| 62 | { |
| 63 | SDL_QuitSubSystem(SDL_INIT_VIDEO); |
| 64 | } |
| 65 | inited=0; |
| 66 | } |
| 67 | |
| 68 | int InitVideo(void) |
| 69 | { |
| 70 | const SDL_VideoInfo *vinf; |
| 71 | int flags=0; |
| 72 | |
| 73 | #ifdef BROKEN |
| 74 | if(_fullscreen && _fshack) |
| 75 | setenv("SDL_VIDEODRIVER",_fshack,1); |
| 76 | else |
| 77 | { |
| 78 | if(!_fshacksave) |
| 79 | unsetenv("SDL_VIDEODRIVER"); |
| 80 | else |
| 81 | setenv("SDL_VIDEODRIVER",_fshacksave,1); |
| 82 | } |
| 83 | #endif |
| 84 | if(SDL_InitSubSystem(SDL_INIT_VIDEO)==-1) |
| 85 | { |
| 86 | puts(SDL_GetError()); |
| 87 | return(0); |
| 88 | } |
| 89 | inited|=1; |
| 90 | |
| 91 | SDL_ShowCursor(0); |
| 92 | tlines=_eline-_sline+1; |
| 93 | |
| 94 | vinf=SDL_GetVideoInfo(); |
| 95 | |
| 96 | if(vinf->hw_available) |
| 97 | flags|=SDL_HWSURFACE; |
| 98 | |
| 99 | if(_fullscreen) |
| 100 | flags|=SDL_FULLSCREEN; |
| 101 | flags|=SDL_HWPALETTE; |
| 102 | |
| 103 | if(_fullscreen) |
| 104 | { |
| 105 | exs=_xscalefs; |
| 106 | eys=_yscalefs; |
| 107 | eefx=_efxfs; |
| 108 | if(_xres<NWIDTH*exs || _yres<tlines*eys) |
| 109 | { |
| 110 | puts("xscale and/or yscale out of bounds."); |
| 111 | KillVideo(); |
| 112 | return(0); |
| 113 | } |
| 114 | screen = SDL_SetVideoMode(_xres, _yres, 8, flags); |
| 115 | } |
| 116 | else |
| 117 | { |
| 118 | exs=_xscale; |
| 119 | eys=_yscale; |
| 120 | eefx=_efx; |
| 121 | screen = SDL_SetVideoMode(NWIDTH*exs, tlines*eys, 8, flags); |
| 122 | } |
| 123 | if(!screen) |
| 124 | { |
| 125 | puts(SDL_GetError()); |
| 126 | KillVideo(); |
| 127 | return(0); |
| 128 | } |
| 129 | inited=1; |
| 130 | CleanSurface(); |
| 131 | |
| 132 | SDL_WM_SetCaption("FCE Ultra","FCE Ultra"); |
| 133 | paletterefresh=1; |
| 134 | return 1; |
| 135 | } |
| 136 | |
| 137 | void ToggleFS(void) |
| 138 | { |
| 139 | KillVideo(); |
| 140 | _fullscreen=!_fullscreen; |
| 141 | |
| 142 | if(!InitVideo()) |
| 143 | { |
| 144 | _fullscreen=!_fullscreen; |
| 145 | if(!InitVideo()) |
| 146 | { |
| 147 | puts("Gah, bailing out."); |
| 148 | exit(1); |
| 149 | } |
| 150 | } |
| 151 | } |
| 152 | static SDL_Color psdl[256]; |
| 153 | |
| 154 | void FCEUD_SetPalette(uint8 index, uint8 r, uint8 g, uint8 b) |
| 155 | { |
| 156 | |
| 157 | psdl[index].r=r; |
| 158 | psdl[index].g=g; |
| 159 | psdl[index].b=b; |
| 160 | |
| 161 | paletterefresh=1; |
| 162 | } |
| 163 | |
| 164 | void FCEUD_GetPalette(uint8 index, uint8 *r, uint8 *g, uint8 *b) |
| 165 | { |
| 166 | *r=psdl[index].r; |
| 167 | *g=psdl[index].g; |
| 168 | *b=psdl[index].b; |
| 169 | } |
| 170 | |
| 171 | static void RedoPalette(void) |
| 172 | { |
| 173 | SDL_SetPalette(screen,SDL_PHYSPAL,psdl,0,256); |
| 174 | } |
| 175 | |
| 176 | void LockConsole(){} |
| 177 | void UnlockConsole(){} |
| 178 | void BlitScreen(uint8 *XBuf) |
| 179 | { |
| 180 | uint8 *dest; |
| 181 | int xo=0,yo=0; |
| 182 | |
| 183 | if(paletterefresh) |
| 184 | { |
| 185 | RedoPalette(); |
| 186 | paletterefresh=0; |
| 187 | } |
| 188 | |
| 189 | XBuf+=_sline*320; |
| 190 | |
| 191 | if(SDL_MUSTLOCK(screen)) |
| 192 | SDL_LockSurface(screen); |
| 193 | |
| 194 | dest=screen->pixels; |
| 195 | |
| 196 | if(_fullscreen) |
| 197 | { |
| 198 | xo=(((screen->w-NWIDTH*exs))>>1); |
| 199 | dest+=xo; |
| 200 | if(screen->h>(tlines*eys)) |
| 201 | { |
| 202 | yo=((screen->h-tlines*eys)>>1); |
| 203 | dest+=yo*screen->pitch; |
| 204 | } |
| 205 | } |
| 206 | |
| 207 | Blit8To8(XBuf+NOFFSET,dest, NWIDTH, tlines, screen->pitch,exs,eys,eefx); |
| 208 | |
| 209 | if(SDL_MUSTLOCK(screen)) |
| 210 | SDL_UnlockSurface(screen); |
| 211 | |
| 212 | SDL_UpdateRect(screen, xo, yo, NWIDTH*exs, tlines*eys); |
| 213 | } |
| 214 | |
| 215 | uint32 PtoV(uint16 x, uint16 y) |
| 216 | { |
| 217 | if(_fullscreen) |
| 218 | { |
| 219 | |
| 220 | } |
| 221 | else |
| 222 | { |
| 223 | if(eoptions&EO_CLIPSIDES) |
| 224 | x+=8; |
| 225 | y+=srendline; |
| 226 | } |
| 227 | return(x|(y<<16)); |
| 228 | } |