Mercurial > sdl-ios-xcode
annotate src/video/fbcon/SDL_fbvideo.c @ 1338:604d73db6802
Removed uses of stdlib.h and string.h
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 07 Feb 2006 09:29:18 +0000 |
| parents | 3692456e7b0f |
| children | d02b552e5304 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
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5 This library is free software; you can redistribute it and/or |
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6 modify it under the terms of the GNU Lesser General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
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10 This library is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 Lesser General Public License for more details. |
| 0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
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21 */ |
| 0 | 22 |
| 23 /* Framebuffer console based SDL video driver implementation. | |
| 24 */ | |
| 25 | |
| 26 #include <stdio.h> | |
| 27 #include <fcntl.h> | |
| 28 #include <unistd.h> | |
| 29 #include <sys/ioctl.h> | |
| 30 #include <sys/mman.h> | |
| 31 #include <asm/page.h> /* For definition of PAGE_SIZE */ | |
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32 #include <sys/io.h> /* For ioperm() */ |
| 0 | 33 |
| 34 #include "SDL.h" | |
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35 #include "SDL_stdlib.h" |
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36 #include "SDL_string.h" |
| 0 | 37 #include "SDL_error.h" |
| 38 #include "SDL_video.h" | |
| 39 #include "SDL_mouse.h" | |
| 40 #include "SDL_sysvideo.h" | |
| 41 #include "SDL_pixels_c.h" | |
| 42 #include "SDL_events_c.h" | |
| 43 #include "SDL_fbvideo.h" | |
| 44 #include "SDL_fbmouse_c.h" | |
| 45 #include "SDL_fbevents_c.h" | |
| 46 #include "SDL_fb3dfx.h" | |
| 47 #include "SDL_fbmatrox.h" | |
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48 #include "SDL_fbriva.h" |
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49 |
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50 /*#define FBCON_DEBUG*/ |
| 0 | 51 |
| 52 #if defined(i386) && defined(FB_TYPE_VGA_PLANES) | |
| 53 #define VGA16_FBCON_SUPPORT | |
| 54 #ifndef FB_AUX_VGA_PLANES_VGA4 | |
| 55 #define FB_AUX_VGA_PLANES_VGA4 0 | |
| 56 #endif | |
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57 /* |
| 0 | 58 static inline void outb (unsigned char value, unsigned short port) |
| 59 { | |
| 60 __asm__ __volatile__ ("outb %b0,%w1"::"a" (value), "Nd" (port)); | |
| 61 } | |
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62 */ |
| 0 | 63 #endif /* FB_TYPE_VGA_PLANES */ |
| 64 | |
| 65 /* A list of video resolutions that we query for (sorted largest to smallest) */ | |
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66 static const SDL_Rect checkres[] = { |
| 0 | 67 { 0, 0, 1600, 1200 }, /* 16 bpp: 0x11E, or 286 */ |
| 68 { 0, 0, 1408, 1056 }, /* 16 bpp: 0x19A, or 410 */ | |
| 69 { 0, 0, 1280, 1024 }, /* 16 bpp: 0x11A, or 282 */ | |
| 70 { 0, 0, 1152, 864 }, /* 16 bpp: 0x192, or 402 */ | |
| 71 { 0, 0, 1024, 768 }, /* 16 bpp: 0x117, or 279 */ | |
| 72 { 0, 0, 960, 720 }, /* 16 bpp: 0x18A, or 394 */ | |
| 73 { 0, 0, 800, 600 }, /* 16 bpp: 0x114, or 276 */ | |
| 74 { 0, 0, 768, 576 }, /* 16 bpp: 0x182, or 386 */ | |
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75 { 0, 0, 720, 576 }, /* PAL */ |
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76 { 0, 0, 720, 480 }, /* NTSC */ |
| 0 | 77 { 0, 0, 640, 480 }, /* 16 bpp: 0x111, or 273 */ |
| 78 { 0, 0, 640, 400 }, /* 8 bpp: 0x100, or 256 */ | |
| 79 { 0, 0, 512, 384 }, | |
| 80 { 0, 0, 320, 240 }, | |
| 81 { 0, 0, 320, 200 } | |
| 82 }; | |
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83 static const struct { |
| 0 | 84 int xres; |
| 85 int yres; | |
| 86 int pixclock; | |
| 87 int left; | |
| 88 int right; | |
| 89 int upper; | |
| 90 int lower; | |
| 91 int hslen; | |
| 92 int vslen; | |
| 93 int sync; | |
| 94 int vmode; | |
| 95 } vesa_timings[] = { | |
| 96 #ifdef USE_VESA_TIMINGS /* Only tested on Matrox Millenium I */ | |
| 97 { 640, 400, 39771, 48, 16, 39, 8, 96, 2, 2, 0 }, /* 70 Hz */ | |
| 98 { 640, 480, 39683, 48, 16, 33, 10, 96, 2, 0, 0 }, /* 60 Hz */ | |
| 99 { 768, 576, 26101, 144, 16, 28, 6, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 100 { 800, 600, 24038, 144, 24, 28, 8, 112, 6, 0, 0 }, /* 60 Hz */ | |
| 101 { 960, 720, 17686, 144, 24, 28, 8, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 102 { 1024, 768, 15386, 160, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | |
| 103 { 1152, 864, 12286, 192, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | |
| 104 { 1280, 1024, 9369, 224, 32, 32, 4, 136, 4, 0, 0 }, /* 60 Hz */ | |
| 105 { 1408, 1056, 8214, 256, 40, 32, 5, 144, 5, 0, 0 }, /* 60 Hz */ | |
| 106 { 1600, 1200,/*?*/0, 272, 48, 32, 5, 152, 5, 0, 0 }, /* 60 Hz */ | |
| 107 #else | |
| 108 /* You can generate these timings from your XF86Config file using | |
| 109 the 'modeline2fb' perl script included with the fbset package. | |
| 110 These timings were generated for Matrox Millenium I, 15" monitor. | |
| 111 */ | |
| 112 { 320, 200, 79440, 16, 16, 20, 4, 48, 1, 0, 2 }, /* 70 Hz */ | |
| 113 { 320, 240, 63492, 16, 16, 16, 4, 48, 2, 0, 2 }, /* 72 Hz */ | |
| 114 { 512, 384, 49603, 48, 16, 16, 1, 64, 3, 0, 0 }, /* 78 Hz */ | |
| 115 { 640, 400, 31746, 96, 32, 41, 1, 64, 3, 2, 0 }, /* 85 Hz */ | |
| 116 { 640, 480, 31746, 120, 16, 16, 1, 64, 3, 0, 0 }, /* 75 Hz */ | |
| 117 { 768, 576, 26101, 144, 16, 28, 6, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 118 { 800, 600, 20000, 64, 56, 23, 37, 120, 6, 3, 0 }, /* 72 Hz */ | |
| 119 { 960, 720, 17686, 144, 24, 28, 8, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 120 { 1024, 768, 13333, 144, 24, 29, 3, 136, 6, 0, 0 }, /* 70 Hz */ | |
| 121 { 1152, 864, 12286, 192, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | |
| 122 { 1280, 1024, 9369, 224, 32, 32, 4, 136, 4, 0, 0 }, /* 60 Hz */ | |
| 123 { 1408, 1056, 8214, 256, 40, 32, 5, 144, 5, 0, 0 }, /* 60 Hz */ | |
| 124 { 1600, 1200,/*?*/0, 272, 48, 32, 5, 152, 5, 0, 0 }, /* 60 Hz */ | |
| 125 #endif | |
| 126 }; | |
| 127 | |
| 128 /* Initialization/Query functions */ | |
| 129 static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat); | |
| 130 static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); | |
| 131 static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 132 #ifdef VGA16_FBCON_SUPPORT | |
| 133 static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 134 #endif | |
| 135 static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); | |
| 136 static void FB_VideoQuit(_THIS); | |
| 137 | |
| 138 /* Hardware surface functions */ | |
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139 static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size); |
| 0 | 140 static void FB_FreeHWSurfaces(_THIS); |
| 141 static int FB_AllocHWSurface(_THIS, SDL_Surface *surface); | |
| 142 static int FB_LockHWSurface(_THIS, SDL_Surface *surface); | |
| 143 static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface); | |
| 144 static void FB_FreeHWSurface(_THIS, SDL_Surface *surface); | |
| 145 static void FB_WaitVBL(_THIS); | |
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146 static void FB_WaitIdle(_THIS); |
| 0 | 147 static int FB_FlipHWSurface(_THIS, SDL_Surface *surface); |
| 148 | |
| 149 /* Internal palette functions */ | |
| 150 static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, | |
| 151 struct fb_var_screeninfo *vinfo); | |
| 152 static void FB_RestorePalette(_THIS); | |
| 153 | |
| 154 /* FB driver bootstrap functions */ | |
| 155 | |
| 156 static int FB_Available(void) | |
| 157 { | |
| 158 int console; | |
| 159 const char *SDL_fbdev; | |
| 160 | |
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161 SDL_fbdev = SDL_getenv("SDL_FBDEV"); |
| 0 | 162 if ( SDL_fbdev == NULL ) { |
| 163 SDL_fbdev = "/dev/fb0"; | |
| 164 } | |
| 165 console = open(SDL_fbdev, O_RDWR, 0); | |
| 166 if ( console >= 0 ) { | |
| 167 close(console); | |
| 168 } | |
| 169 return(console >= 0); | |
| 170 } | |
| 171 | |
| 172 static void FB_DeleteDevice(SDL_VideoDevice *device) | |
| 173 { | |
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174 SDL_free(device->hidden); |
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175 SDL_free(device); |
| 0 | 176 } |
| 177 | |
| 178 static SDL_VideoDevice *FB_CreateDevice(int devindex) | |
| 179 { | |
| 180 SDL_VideoDevice *this; | |
| 181 | |
| 182 /* Initialize all variables that we clean on shutdown */ | |
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183 this = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); |
| 0 | 184 if ( this ) { |
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185 SDL_memset(this, 0, (sizeof *this)); |
| 0 | 186 this->hidden = (struct SDL_PrivateVideoData *) |
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187 SDL_malloc((sizeof *this->hidden)); |
| 0 | 188 } |
| 189 if ( (this == NULL) || (this->hidden == NULL) ) { | |
| 190 SDL_OutOfMemory(); | |
| 191 if ( this ) { | |
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192 SDL_free(this); |
| 0 | 193 } |
| 194 return(0); | |
| 195 } | |
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196 SDL_memset(this->hidden, 0, (sizeof *this->hidden)); |
| 0 | 197 wait_vbl = FB_WaitVBL; |
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198 wait_idle = FB_WaitIdle; |
| 0 | 199 mouse_fd = -1; |
| 200 keyboard_fd = -1; | |
| 201 | |
| 202 /* Set the function pointers */ | |
| 203 this->VideoInit = FB_VideoInit; | |
| 204 this->ListModes = FB_ListModes; | |
| 205 this->SetVideoMode = FB_SetVideoMode; | |
| 206 this->SetColors = FB_SetColors; | |
| 207 this->UpdateRects = NULL; | |
| 208 this->VideoQuit = FB_VideoQuit; | |
| 209 this->AllocHWSurface = FB_AllocHWSurface; | |
| 210 this->CheckHWBlit = NULL; | |
| 211 this->FillHWRect = NULL; | |
| 212 this->SetHWColorKey = NULL; | |
| 213 this->SetHWAlpha = NULL; | |
| 214 this->LockHWSurface = FB_LockHWSurface; | |
| 215 this->UnlockHWSurface = FB_UnlockHWSurface; | |
| 216 this->FlipHWSurface = FB_FlipHWSurface; | |
| 217 this->FreeHWSurface = FB_FreeHWSurface; | |
| 218 this->SetCaption = NULL; | |
| 219 this->SetIcon = NULL; | |
| 220 this->IconifyWindow = NULL; | |
| 221 this->GrabInput = NULL; | |
| 222 this->GetWMInfo = NULL; | |
| 223 this->InitOSKeymap = FB_InitOSKeymap; | |
| 224 this->PumpEvents = FB_PumpEvents; | |
| 225 | |
| 226 this->free = FB_DeleteDevice; | |
| 227 | |
| 228 return this; | |
| 229 } | |
| 230 | |
| 231 VideoBootStrap FBCON_bootstrap = { | |
| 232 "fbcon", "Linux Framebuffer Console", | |
| 233 FB_Available, FB_CreateDevice | |
| 234 }; | |
| 235 | |
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236 #define FB_MODES_DB "/etc/fb.modes" |
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237 |
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238 static int read_fbmodes_line(FILE*f, char* line, int length) |
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239 { |
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240 int blank; |
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241 char* c; |
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242 int i; |
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243 |
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244 blank=0; |
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245 /* find a relevant line */ |
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246 do |
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247 { |
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248 if (fgets(line,length,f)<=0) |
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249 return 0; |
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250 c=line; |
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251 while(((*c=='\t')||(*c==' '))&&(*c!=0)) |
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252 c++; |
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253 |
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254 if ((*c=='\n')||(*c=='#')||(*c==0)) |
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255 blank=1; |
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256 else |
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257 blank=0; |
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258 } |
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259 while(blank); |
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260 /* remove whitespace at the begining of the string */ |
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261 i=0; |
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262 do |
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263 { |
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264 line[i]=c[i]; |
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265 i++; |
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266 } |
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267 while(c[i]!=0); |
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268 return 1; |
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269 } |
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270 |
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271 static int read_fbmodes_mode(FILE *f, struct fb_var_screeninfo *vinfo) |
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272 { |
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273 char line[1024]; |
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274 char option[256]; |
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275 |
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276 /* Find a "geometry" */ |
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277 do { |
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278 if (read_fbmodes_line(f, line, sizeof(line))==0) |
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279 return 0; |
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280 if (SDL_strncmp(line,"geometry",8)==0) |
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281 break; |
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282 } |
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283 while(1); |
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284 |
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285 SDL_sscanf(line, "geometry %d %d %d %d %d", &vinfo->xres, &vinfo->yres, |
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286 &vinfo->xres_virtual, &vinfo->yres_virtual, &vinfo->bits_per_pixel); |
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287 if (read_fbmodes_line(f, line, sizeof(line))==0) |
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288 return 0; |
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289 |
|
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290 SDL_sscanf(line, "timings %d %d %d %d %d %d %d", &vinfo->pixclock, |
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291 &vinfo->left_margin, &vinfo->right_margin, &vinfo->upper_margin, |
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292 &vinfo->lower_margin, &vinfo->hsync_len, &vinfo->vsync_len); |
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293 |
|
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294 vinfo->sync=0; |
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295 vinfo->vmode=FB_VMODE_NONINTERLACED; |
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296 |
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297 /* Parse misc options */ |
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298 do { |
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299 if (read_fbmodes_line(f, line, sizeof(line))==0) |
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300 return 0; |
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301 |
|
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302 if (SDL_strncmp(line,"hsync",5)==0) { |
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303 SDL_sscanf(line,"hsync %s",option); |
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304 if (SDL_strncmp(option,"high",4)==0) |
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305 vinfo->sync |= FB_SYNC_HOR_HIGH_ACT; |
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306 } |
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307 else if (SDL_strncmp(line,"vsync",5)==0) { |
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308 SDL_sscanf(line,"vsync %s",option); |
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309 if (SDL_strncmp(option,"high",4)==0) |
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310 vinfo->sync |= FB_SYNC_VERT_HIGH_ACT; |
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311 } |
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312 else if (SDL_strncmp(line,"csync",5)==0) { |
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313 SDL_sscanf(line,"csync %s",option); |
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314 if (SDL_strncmp(option,"high",4)==0) |
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315 vinfo->sync |= FB_SYNC_COMP_HIGH_ACT; |
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316 } |
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317 else if (SDL_strncmp(line,"extsync",5)==0) { |
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318 SDL_sscanf(line,"extsync %s",option); |
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319 if (SDL_strncmp(option,"true",4)==0) |
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320 vinfo->sync |= FB_SYNC_EXT; |
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321 } |
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322 else if (SDL_strncmp(line,"laced",5)==0) { |
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323 SDL_sscanf(line,"laced %s",option); |
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324 if (SDL_strncmp(option,"true",4)==0) |
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325 vinfo->vmode |= FB_VMODE_INTERLACED; |
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326 } |
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327 else if (SDL_strncmp(line,"double",6)==0) { |
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328 SDL_sscanf(line,"double %s",option); |
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329 if (SDL_strncmp(option,"true",4)==0) |
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330 vinfo->vmode |= FB_VMODE_DOUBLE; |
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331 } |
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332 } |
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333 while(SDL_strncmp(line,"endmode",7)!=0); |
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334 |
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335 return 1; |
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336 } |
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337 |
| 0 | 338 static int FB_CheckMode(_THIS, struct fb_var_screeninfo *vinfo, |
| 339 int index, unsigned int *w, unsigned int *h) | |
| 340 { | |
| 341 int mode_okay; | |
| 342 | |
| 343 mode_okay = 0; | |
| 344 vinfo->bits_per_pixel = (index+1)*8; | |
| 345 vinfo->xres = *w; | |
| 346 vinfo->xres_virtual = *w; | |
| 347 vinfo->yres = *h; | |
| 348 vinfo->yres_virtual = *h; | |
| 349 vinfo->activate = FB_ACTIVATE_TEST; | |
| 350 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, vinfo) == 0 ) { | |
| 351 #ifdef FBCON_DEBUG | |
| 352 fprintf(stderr, "Checked mode %dx%d at %d bpp, got mode %dx%d at %d bpp\n", *w, *h, (index+1)*8, vinfo->xres, vinfo->yres, vinfo->bits_per_pixel); | |
| 353 #endif | |
| 354 if ( (((vinfo->bits_per_pixel+7)/8)-1) == index ) { | |
| 355 *w = vinfo->xres; | |
| 356 *h = vinfo->yres; | |
| 357 mode_okay = 1; | |
| 358 } | |
| 359 } | |
| 360 return mode_okay; | |
| 361 } | |
| 362 | |
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363 static int FB_AddMode(_THIS, int index, unsigned int w, unsigned int h, int check_timings) |
| 0 | 364 { |
| 365 SDL_Rect *mode; | |
| 366 int i; | |
| 367 int next_mode; | |
| 368 | |
| 369 /* Check to see if we already have this mode */ | |
| 370 if ( SDL_nummodes[index] > 0 ) { | |
| 371 mode = SDL_modelist[index][SDL_nummodes[index]-1]; | |
| 372 if ( (mode->w == w) && (mode->h == h) ) { | |
| 373 #ifdef FBCON_DEBUG | |
| 374 fprintf(stderr, "We already have mode %dx%d at %d bytes per pixel\n", w, h, index+1); | |
| 375 #endif | |
| 376 return(0); | |
| 377 } | |
| 378 } | |
| 379 | |
| 380 /* Only allow a mode if we have a valid timing for it */ | |
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381 if ( check_timings ) { |
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382 int found_timing = 0; |
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383 for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { |
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384 if ( (w == vesa_timings[i].xres) && |
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385 (h == vesa_timings[i].yres) && vesa_timings[i].pixclock ) { |
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386 found_timing = 1; |
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387 break; |
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388 } |
| 0 | 389 } |
|
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390 if ( !found_timing ) { |
| 0 | 391 #ifdef FBCON_DEBUG |
|
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392 fprintf(stderr, "No valid timing line for mode %dx%d\n", w, h); |
| 0 | 393 #endif |
|
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394 return(0); |
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395 } |
| 0 | 396 } |
| 397 | |
| 398 /* Set up the new video mode rectangle */ | |
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399 mode = (SDL_Rect *)SDL_malloc(sizeof *mode); |
| 0 | 400 if ( mode == NULL ) { |
| 401 SDL_OutOfMemory(); | |
| 402 return(-1); | |
| 403 } | |
| 404 mode->x = 0; | |
| 405 mode->y = 0; | |
| 406 mode->w = w; | |
| 407 mode->h = h; | |
| 408 #ifdef FBCON_DEBUG | |
| 409 fprintf(stderr, "Adding mode %dx%d at %d bytes per pixel\n", w, h, index+1); | |
| 410 #endif | |
| 411 | |
| 412 /* Allocate the new list of modes, and fill in the new mode */ | |
| 413 next_mode = SDL_nummodes[index]; | |
| 414 SDL_modelist[index] = (SDL_Rect **) | |
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415 SDL_realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *)); |
| 0 | 416 if ( SDL_modelist[index] == NULL ) { |
| 417 SDL_OutOfMemory(); | |
| 418 SDL_nummodes[index] = 0; | |
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419 SDL_free(mode); |
| 0 | 420 return(-1); |
| 421 } | |
| 422 SDL_modelist[index][next_mode] = mode; | |
| 423 SDL_modelist[index][next_mode+1] = NULL; | |
| 424 SDL_nummodes[index]++; | |
| 425 | |
| 426 return(0); | |
| 427 } | |
| 428 | |
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429 static int cmpmodes(const void *va, const void *vb) |
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430 { |
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431 const SDL_Rect *a = *(const SDL_Rect**)va; |
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432 const SDL_Rect *b = *(const SDL_Rect**)vb; |
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433 if ( a->h == b->h ) |
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434 return b->w - a->w; |
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435 else |
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436 return b->h - a->h; |
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437 } |
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438 |
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439 static int FB_SortModes(_THIS) |
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440 { |
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441 int i; |
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442 for ( i=0; i<NUM_MODELISTS; ++i ) { |
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443 if ( SDL_nummodes[i] > 0 ) { |
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444 SDL_qsort(SDL_modelist[i], SDL_nummodes[i], sizeof *SDL_modelist[i], cmpmodes); |
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445 } |
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446 } |
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447 } |
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448 |
| 0 | 449 static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat) |
| 450 { | |
| 451 struct fb_fix_screeninfo finfo; | |
| 452 struct fb_var_screeninfo vinfo; | |
| 453 int i, j; | |
| 454 int current_index; | |
| 455 unsigned int current_w; | |
| 456 unsigned int current_h; | |
| 457 const char *SDL_fbdev; | |
|
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458 FILE *modesdb; |
| 0 | 459 |
| 460 /* Initialize the library */ | |
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461 SDL_fbdev = SDL_getenv("SDL_FBDEV"); |
| 0 | 462 if ( SDL_fbdev == NULL ) { |
| 463 SDL_fbdev = "/dev/fb0"; | |
| 464 } | |
| 465 console_fd = open(SDL_fbdev, O_RDWR, 0); | |
| 466 if ( console_fd < 0 ) { | |
| 467 SDL_SetError("Unable to open %s", SDL_fbdev); | |
| 468 return(-1); | |
| 469 } | |
| 470 | |
| 471 #ifndef DISABLE_THREADS | |
| 472 /* Create the hardware surface lock mutex */ | |
| 473 hw_lock = SDL_CreateMutex(); | |
| 474 if ( hw_lock == NULL ) { | |
| 475 SDL_SetError("Unable to create lock mutex"); | |
| 476 FB_VideoQuit(this); | |
| 477 return(-1); | |
| 478 } | |
| 479 #endif | |
| 480 | |
| 481 /* Get the type of video hardware */ | |
| 482 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 483 SDL_SetError("Couldn't get console hardware info"); | |
| 484 FB_VideoQuit(this); | |
| 485 return(-1); | |
| 486 } | |
| 487 switch (finfo.type) { | |
| 488 case FB_TYPE_PACKED_PIXELS: | |
| 489 /* Supported, no worries.. */ | |
| 490 break; | |
| 491 #ifdef VGA16_FBCON_SUPPORT | |
| 492 case FB_TYPE_VGA_PLANES: | |
| 493 /* VGA16 is supported, but that's it */ | |
| 494 if ( finfo.type_aux == FB_AUX_VGA_PLANES_VGA4 ) { | |
| 495 if ( ioperm(0x3b4, 0x3df - 0x3b4 + 1, 1) < 0 ) { | |
| 496 SDL_SetError("No I/O port permissions"); | |
| 497 FB_VideoQuit(this); | |
| 498 return(-1); | |
| 499 } | |
| 500 this->SetVideoMode = FB_SetVGA16Mode; | |
| 501 break; | |
| 502 } | |
| 503 /* Fall through to unsupported case */ | |
| 504 #endif /* VGA16_FBCON_SUPPORT */ | |
| 505 default: | |
| 506 SDL_SetError("Unsupported console hardware"); | |
| 507 FB_VideoQuit(this); | |
| 508 return(-1); | |
| 509 } | |
| 510 switch (finfo.visual) { | |
| 511 case FB_VISUAL_TRUECOLOR: | |
| 512 case FB_VISUAL_PSEUDOCOLOR: | |
| 513 case FB_VISUAL_STATIC_PSEUDOCOLOR: | |
| 514 case FB_VISUAL_DIRECTCOLOR: | |
| 515 break; | |
| 516 default: | |
| 517 SDL_SetError("Unsupported console hardware"); | |
| 518 FB_VideoQuit(this); | |
| 519 return(-1); | |
| 520 } | |
| 521 | |
| 522 /* Check if the user wants to disable hardware acceleration */ | |
| 523 { const char *fb_accel; | |
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524 fb_accel = SDL_getenv("SDL_FBACCEL"); |
| 0 | 525 if ( fb_accel ) { |
| 526 finfo.accel = atoi(fb_accel); | |
| 527 } | |
| 528 } | |
| 529 | |
| 530 /* Memory map the device, compensating for buggy PPC mmap() */ | |
| 531 mapped_offset = (((long)finfo.smem_start) - | |
| 532 (((long)finfo.smem_start)&~(PAGE_SIZE-1))); | |
| 533 mapped_memlen = finfo.smem_len+mapped_offset; | |
| 534 mapped_mem = mmap(NULL, mapped_memlen, | |
| 535 PROT_READ|PROT_WRITE, MAP_SHARED, console_fd, 0); | |
| 536 if ( mapped_mem == (char *)-1 ) { | |
| 537 SDL_SetError("Unable to memory map the video hardware"); | |
| 538 mapped_mem = NULL; | |
| 539 FB_VideoQuit(this); | |
| 540 return(-1); | |
| 541 } | |
| 542 | |
| 543 /* Determine the current screen depth */ | |
| 544 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 545 SDL_SetError("Couldn't get console pixel format"); | |
| 546 FB_VideoQuit(this); | |
| 547 return(-1); | |
| 548 } | |
| 549 vformat->BitsPerPixel = vinfo.bits_per_pixel; | |
| 550 if ( vformat->BitsPerPixel < 8 ) { | |
| 551 /* Assuming VGA16, we handle this via a shadow framebuffer */ | |
| 552 vformat->BitsPerPixel = 8; | |
| 553 } | |
| 554 for ( i=0; i<vinfo.red.length; ++i ) { | |
| 555 vformat->Rmask <<= 1; | |
| 556 vformat->Rmask |= (0x00000001<<vinfo.red.offset); | |
| 557 } | |
| 558 for ( i=0; i<vinfo.green.length; ++i ) { | |
| 559 vformat->Gmask <<= 1; | |
| 560 vformat->Gmask |= (0x00000001<<vinfo.green.offset); | |
| 561 } | |
| 562 for ( i=0; i<vinfo.blue.length; ++i ) { | |
| 563 vformat->Bmask <<= 1; | |
| 564 vformat->Bmask |= (0x00000001<<vinfo.blue.offset); | |
| 565 } | |
| 566 saved_vinfo = vinfo; | |
| 567 | |
| 568 /* Save hardware palette, if needed */ | |
| 569 FB_SavePalette(this, &finfo, &vinfo); | |
| 570 | |
| 571 /* If the I/O registers are available, memory map them so we | |
| 572 can take advantage of any supported hardware acceleration. | |
| 573 */ | |
| 574 vinfo.accel_flags = 0; /* Temporarily reserve registers */ | |
| 575 ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo); | |
| 576 if ( finfo.accel && finfo.mmio_len ) { | |
| 577 mapped_iolen = finfo.mmio_len; | |
| 578 mapped_io = mmap(NULL, mapped_iolen, PROT_READ|PROT_WRITE, | |
| 579 MAP_SHARED, console_fd, mapped_memlen); | |
| 580 if ( mapped_io == (char *)-1 ) { | |
| 581 /* Hmm, failed to memory map I/O registers */ | |
| 582 mapped_io = NULL; | |
| 583 } | |
| 584 } | |
| 585 | |
| 586 /* Query for the list of available video modes */ | |
| 587 current_w = vinfo.xres; | |
| 588 current_h = vinfo.yres; | |
| 589 current_index = ((vinfo.bits_per_pixel+7)/8)-1; | |
|
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590 modesdb = fopen(FB_MODES_DB, "r"); |
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591 for ( i=0; i<NUM_MODELISTS; ++i ) { |
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592 SDL_nummodes[i] = 0; |
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593 SDL_modelist[i] = NULL; |
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594 } |
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595 if ( SDL_getenv("SDL_FB_BROKEN_MODES") != NULL ) { |
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596 FB_AddMode(this, current_index, current_w, current_h, 0); |
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597 } else if(modesdb) { |
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598 while ( read_fbmodes_mode(modesdb, &vinfo) ) { |
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599 for ( i=0; i<NUM_MODELISTS; ++i ) { |
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600 unsigned int w, h; |
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601 |
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602 /* See if we are querying for the current mode */ |
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603 w = vinfo.xres; |
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604 h = vinfo.yres; |
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605 if ( i == current_index ) { |
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606 if ( (current_w > w) || (current_h > h) ) { |
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607 /* Only check once */ |
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608 FB_AddMode(this, i, current_w, current_h, 0); |
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609 current_index = -1; |
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610 } |
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611 } |
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612 if ( FB_CheckMode(this, &vinfo, i, &w, &h) ) { |
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613 FB_AddMode(this, i, w, h, 0); |
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614 } |
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615 } |
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616 } |
|
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617 fclose(modesdb); |
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618 FB_SortModes(this); |
|
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619 } else { |
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620 for ( i=0; i<NUM_MODELISTS; ++i ) { |
|
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621 for ( j=0; j<(sizeof(checkres)/sizeof(checkres[0])); ++j ) { |
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622 unsigned int w, h; |
| 0 | 623 |
|
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624 /* See if we are querying for the current mode */ |
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625 w = checkres[j].w; |
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626 h = checkres[j].h; |
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627 if ( i == current_index ) { |
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Date: Mon, 12 Jul 2004 14:17:47 -0500
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changeset
|
628 if ( (current_w > w) || (current_h > h) ) { |
|
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
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parents:
769
diff
changeset
|
629 /* Only check once */ |
|
1215
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Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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|
630 FB_AddMode(this, i, current_w, current_h, 0); |
|
941
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Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
631 current_index = -1; |
|
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
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parents:
769
diff
changeset
|
632 } |
| 0 | 633 } |
|
941
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Date: Mon, 12 Jul 2004 14:17:47 -0500
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diff
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|
634 if ( FB_CheckMode(this, &vinfo, i, &w, &h) ) { |
|
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Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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diff
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|
635 FB_AddMode(this, i, w, h, 1); |
|
941
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Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
636 } |
| 0 | 637 } |
| 638 } | |
| 639 } | |
| 640 | |
| 641 /* Fill in our hardware acceleration capabilities */ | |
| 642 this->info.wm_available = 0; | |
| 643 this->info.hw_available = 1; | |
| 644 this->info.video_mem = finfo.smem_len/1024; | |
| 645 if ( mapped_io ) { | |
| 646 switch (finfo.accel) { | |
| 647 case FB_ACCEL_MATROX_MGA2064W: | |
| 648 case FB_ACCEL_MATROX_MGA1064SG: | |
| 649 case FB_ACCEL_MATROX_MGA2164W: | |
| 650 case FB_ACCEL_MATROX_MGA2164W_AGP: | |
| 651 case FB_ACCEL_MATROX_MGAG100: | |
| 652 /*case FB_ACCEL_MATROX_MGAG200: G200 acceleration broken! */ | |
| 653 case FB_ACCEL_MATROX_MGAG400: | |
| 654 #ifdef FBACCEL_DEBUG | |
| 655 printf("Matrox hardware accelerator!\n"); | |
| 656 #endif | |
| 657 FB_MatroxAccel(this, finfo.accel); | |
| 658 break; | |
| 659 case FB_ACCEL_3DFX_BANSHEE: | |
| 660 #ifdef FBACCEL_DEBUG | |
| 661 printf("3DFX hardware accelerator!\n"); | |
| 662 #endif | |
| 663 FB_3DfxAccel(this, finfo.accel); | |
| 664 break; | |
|
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5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
665 case FB_ACCEL_NV3: |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
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diff
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|
666 case FB_ACCEL_NV4: |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
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changeset
|
667 #ifdef FBACCEL_DEBUG |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
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|
668 printf("NVidia hardware accelerator!\n"); |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
106
diff
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|
669 #endif |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
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diff
changeset
|
670 FB_RivaAccel(this, finfo.accel); |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
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diff
changeset
|
671 break; |
| 0 | 672 default: |
| 673 #ifdef FBACCEL_DEBUG | |
| 674 printf("Unknown hardware accelerator.\n"); | |
| 675 #endif | |
| 676 break; | |
| 677 } | |
| 678 } | |
| 679 | |
| 680 /* Enable mouse and keyboard support */ | |
| 681 if ( FB_OpenKeyboard(this) < 0 ) { | |
| 682 FB_VideoQuit(this); | |
| 683 return(-1); | |
| 684 } | |
| 685 if ( FB_OpenMouse(this) < 0 ) { | |
| 686 const char *sdl_nomouse; | |
| 687 | |
|
1336
3692456e7b0f
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Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
688 sdl_nomouse = SDL_getenv("SDL_NOMOUSE"); |
| 0 | 689 if ( ! sdl_nomouse ) { |
| 690 SDL_SetError("Unable to open mouse"); | |
| 691 FB_VideoQuit(this); | |
| 692 return(-1); | |
| 693 } | |
| 694 } | |
| 695 | |
| 696 /* We're done! */ | |
| 697 return(0); | |
| 698 } | |
| 699 | |
| 700 static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) | |
| 701 { | |
| 702 return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]); | |
| 703 } | |
| 704 | |
| 705 /* Various screen update functions available */ | |
| 706 static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); | |
| 707 #ifdef VGA16_FBCON_SUPPORT | |
| 708 static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects); | |
| 709 #endif | |
| 710 | |
| 711 #ifdef FBCON_DEBUG | |
| 712 static void print_vinfo(struct fb_var_screeninfo *vinfo) | |
| 713 { | |
| 714 fprintf(stderr, "Printing vinfo:\n"); | |
| 715 fprintf(stderr, "\txres: %d\n", vinfo->xres); | |
| 716 fprintf(stderr, "\tyres: %d\n", vinfo->yres); | |
| 717 fprintf(stderr, "\txres_virtual: %d\n", vinfo->xres_virtual); | |
| 718 fprintf(stderr, "\tyres_virtual: %d\n", vinfo->yres_virtual); | |
| 719 fprintf(stderr, "\txoffset: %d\n", vinfo->xoffset); | |
| 720 fprintf(stderr, "\tyoffset: %d\n", vinfo->yoffset); | |
| 721 fprintf(stderr, "\tbits_per_pixel: %d\n", vinfo->bits_per_pixel); | |
| 722 fprintf(stderr, "\tgrayscale: %d\n", vinfo->grayscale); | |
| 723 fprintf(stderr, "\tnonstd: %d\n", vinfo->nonstd); | |
| 724 fprintf(stderr, "\tactivate: %d\n", vinfo->activate); | |
| 725 fprintf(stderr, "\theight: %d\n", vinfo->height); | |
| 726 fprintf(stderr, "\twidth: %d\n", vinfo->width); | |
| 727 fprintf(stderr, "\taccel_flags: %d\n", vinfo->accel_flags); | |
| 728 fprintf(stderr, "\tpixclock: %d\n", vinfo->pixclock); | |
| 729 fprintf(stderr, "\tleft_margin: %d\n", vinfo->left_margin); | |
| 730 fprintf(stderr, "\tright_margin: %d\n", vinfo->right_margin); | |
| 731 fprintf(stderr, "\tupper_margin: %d\n", vinfo->upper_margin); | |
| 732 fprintf(stderr, "\tlower_margin: %d\n", vinfo->lower_margin); | |
| 733 fprintf(stderr, "\thsync_len: %d\n", vinfo->hsync_len); | |
| 734 fprintf(stderr, "\tvsync_len: %d\n", vinfo->vsync_len); | |
| 735 fprintf(stderr, "\tsync: %d\n", vinfo->sync); | |
| 736 fprintf(stderr, "\tvmode: %d\n", vinfo->vmode); | |
| 737 fprintf(stderr, "\tred: %d/%d\n", vinfo->red.length, vinfo->red.offset); | |
| 738 fprintf(stderr, "\tgreen: %d/%d\n", vinfo->green.length, vinfo->green.offset); | |
| 739 fprintf(stderr, "\tblue: %d/%d\n", vinfo->blue.length, vinfo->blue.offset); | |
| 740 fprintf(stderr, "\talpha: %d/%d\n", vinfo->transp.length, vinfo->transp.offset); | |
| 741 } | |
| 742 static void print_finfo(struct fb_fix_screeninfo *finfo) | |
| 743 { | |
| 744 fprintf(stderr, "Printing finfo:\n"); | |
| 745 fprintf(stderr, "\tsmem_start = %p\n", (char *)finfo->smem_start); | |
| 746 fprintf(stderr, "\tsmem_len = %d\n", finfo->smem_len); | |
| 747 fprintf(stderr, "\ttype = %d\n", finfo->type); | |
| 748 fprintf(stderr, "\ttype_aux = %d\n", finfo->type_aux); | |
| 749 fprintf(stderr, "\tvisual = %d\n", finfo->visual); | |
| 750 fprintf(stderr, "\txpanstep = %d\n", finfo->xpanstep); | |
| 751 fprintf(stderr, "\typanstep = %d\n", finfo->ypanstep); | |
| 752 fprintf(stderr, "\tywrapstep = %d\n", finfo->ywrapstep); | |
| 753 fprintf(stderr, "\tline_length = %d\n", finfo->line_length); | |
| 754 fprintf(stderr, "\tmmio_start = %p\n", (char *)finfo->mmio_start); | |
| 755 fprintf(stderr, "\tmmio_len = %d\n", finfo->mmio_len); | |
| 756 fprintf(stderr, "\taccel = %d\n", finfo->accel); | |
| 757 } | |
| 758 #endif | |
| 759 | |
| 760 static int choose_fbmodes_mode(struct fb_var_screeninfo *vinfo) | |
| 761 { | |
| 762 int matched; | |
|
1215
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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diff
changeset
|
763 FILE *modesdb; |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
764 struct fb_var_screeninfo cinfo; |
| 0 | 765 |
| 766 matched = 0; | |
|
1215
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
767 modesdb = fopen(FB_MODES_DB, "r"); |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
768 if ( modesdb ) { |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
769 /* Parse the mode definition file */ |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
770 while ( read_fbmodes_mode(modesdb, &cinfo) ) { |
|
1217
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
771 if ( (vinfo->xres == cinfo.xres && vinfo->yres == cinfo.yres) && |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
772 (!matched || (vinfo->bits_per_pixel == cinfo.bits_per_pixel)) ) { |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
773 vinfo->pixclock = cinfo.pixclock; |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
774 vinfo->left_margin = cinfo.left_margin; |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
775 vinfo->right_margin = cinfo.right_margin; |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
776 vinfo->upper_margin = cinfo.upper_margin; |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
777 vinfo->lower_margin = cinfo.lower_margin; |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
778 vinfo->hsync_len = cinfo.hsync_len; |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
779 vinfo->vsync_len = cinfo.vsync_len; |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
780 if ( matched ) { |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
781 break; |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
782 } |
|
1215
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
783 matched = 1; |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
784 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
785 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
786 fclose(modesdb); |
| 0 | 787 } |
| 788 return(matched); | |
| 789 } | |
| 790 | |
| 791 static int choose_vesa_mode(struct fb_var_screeninfo *vinfo) | |
| 792 { | |
| 793 int matched; | |
| 794 int i; | |
| 795 | |
| 796 /* Check for VESA timings */ | |
| 797 matched = 0; | |
| 798 for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { | |
| 799 if ( (vinfo->xres == vesa_timings[i].xres) && | |
| 800 (vinfo->yres == vesa_timings[i].yres) ) { | |
| 801 #ifdef FBCON_DEBUG | |
| 802 fprintf(stderr, "Using VESA timings for %dx%d\n", | |
| 803 vinfo->xres, vinfo->yres); | |
| 804 #endif | |
| 805 if ( vesa_timings[i].pixclock ) { | |
| 806 vinfo->pixclock = vesa_timings[i].pixclock; | |
| 807 } | |
| 808 vinfo->left_margin = vesa_timings[i].left; | |
| 809 vinfo->right_margin = vesa_timings[i].right; | |
| 810 vinfo->upper_margin = vesa_timings[i].upper; | |
| 811 vinfo->lower_margin = vesa_timings[i].lower; | |
| 812 vinfo->hsync_len = vesa_timings[i].hslen; | |
| 813 vinfo->vsync_len = vesa_timings[i].vslen; | |
| 814 vinfo->sync = vesa_timings[i].sync; | |
| 815 vinfo->vmode = vesa_timings[i].vmode; | |
| 816 matched = 1; | |
| 817 break; | |
| 818 } | |
| 819 } | |
| 820 return(matched); | |
| 821 } | |
| 822 | |
| 823 #ifdef VGA16_FBCON_SUPPORT | |
| 824 static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, | |
| 825 int width, int height, int bpp, Uint32 flags) | |
| 826 { | |
| 827 struct fb_fix_screeninfo finfo; | |
| 828 struct fb_var_screeninfo vinfo; | |
| 829 | |
| 830 /* Set the terminal into graphics mode */ | |
| 831 if ( FB_EnterGraphicsMode(this) < 0 ) { | |
| 832 return(NULL); | |
| 833 } | |
| 834 | |
| 835 /* Restore the original palette */ | |
| 836 FB_RestorePalette(this); | |
| 837 | |
| 838 /* Set the video mode and get the final screen format */ | |
| 839 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 840 SDL_SetError("Couldn't get console screen info"); | |
| 841 return(NULL); | |
| 842 } | |
| 843 cache_vinfo = vinfo; | |
| 844 #ifdef FBCON_DEBUG | |
| 845 fprintf(stderr, "Printing actual vinfo:\n"); | |
| 846 print_vinfo(&vinfo); | |
| 847 #endif | |
| 848 if ( ! SDL_ReallocFormat(current, bpp, 0, 0, 0, 0) ) { | |
| 849 return(NULL); | |
| 850 } | |
|
106
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Merged DGA video surface handling improvements, unified locking code.
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parents:
91
diff
changeset
|
851 current->format->palette->ncolors = 16; |
| 0 | 852 |
| 853 /* Get the fixed information about the console hardware. | |
| 854 This is necessary since finfo.line_length changes. | |
| 855 */ | |
| 856 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 857 SDL_SetError("Couldn't get console hardware info"); | |
| 858 return(NULL); | |
| 859 } | |
| 860 #ifdef FBCON_DEBUG | |
| 861 fprintf(stderr, "Printing actual finfo:\n"); | |
| 862 print_finfo(&finfo); | |
| 863 #endif | |
| 864 | |
| 865 /* Save hardware palette, if needed */ | |
| 866 FB_SavePalette(this, &finfo, &vinfo); | |
| 867 | |
| 868 /* Set up the new mode framebuffer */ | |
| 869 current->flags = SDL_FULLSCREEN; | |
| 870 current->w = vinfo.xres; | |
| 871 current->h = vinfo.yres; | |
| 872 current->pitch = current->w; | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
873 current->pixels = SDL_malloc(current->h*current->pitch); |
| 0 | 874 |
| 875 /* Set the update rectangle function */ | |
| 876 this->UpdateRects = FB_VGA16Update; | |
| 877 | |
| 878 /* We're done */ | |
| 879 return(current); | |
| 880 } | |
| 881 #endif /* VGA16_FBCON_SUPPORT */ | |
| 882 | |
| 883 static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, | |
| 884 int width, int height, int bpp, Uint32 flags) | |
| 885 { | |
| 886 struct fb_fix_screeninfo finfo; | |
| 887 struct fb_var_screeninfo vinfo; | |
| 888 int i; | |
| 889 Uint32 Rmask; | |
| 890 Uint32 Gmask; | |
| 891 Uint32 Bmask; | |
| 892 char *surfaces_mem; | |
| 893 int surfaces_len; | |
| 894 | |
| 895 /* Set the terminal into graphics mode */ | |
| 896 if ( FB_EnterGraphicsMode(this) < 0 ) { | |
| 897 return(NULL); | |
| 898 } | |
| 899 | |
| 900 /* Restore the original palette */ | |
| 901 FB_RestorePalette(this); | |
| 902 | |
| 903 /* Set the video mode and get the final screen format */ | |
| 904 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 905 SDL_SetError("Couldn't get console screen info"); | |
| 906 return(NULL); | |
| 907 } | |
| 908 #ifdef FBCON_DEBUG | |
| 909 fprintf(stderr, "Printing original vinfo:\n"); | |
| 910 print_vinfo(&vinfo); | |
| 911 #endif | |
| 912 if ( (vinfo.xres != width) || (vinfo.yres != height) || | |
| 913 (vinfo.bits_per_pixel != bpp) || (flags & SDL_DOUBLEBUF) ) { | |
| 914 vinfo.activate = FB_ACTIVATE_NOW; | |
| 915 vinfo.accel_flags = 0; | |
| 916 vinfo.bits_per_pixel = bpp; | |
| 917 vinfo.xres = width; | |
| 918 vinfo.xres_virtual = width; | |
| 919 vinfo.yres = height; | |
| 920 if ( flags & SDL_DOUBLEBUF ) { | |
| 921 vinfo.yres_virtual = height*2; | |
| 922 } else { | |
| 923 vinfo.yres_virtual = height; | |
| 924 } | |
| 925 vinfo.xoffset = 0; | |
| 926 vinfo.yoffset = 0; | |
| 927 vinfo.red.length = vinfo.red.offset = 0; | |
| 928 vinfo.green.length = vinfo.green.offset = 0; | |
| 929 vinfo.blue.length = vinfo.blue.offset = 0; | |
| 930 vinfo.transp.length = vinfo.transp.offset = 0; | |
| 931 if ( ! choose_fbmodes_mode(&vinfo) ) { | |
| 932 choose_vesa_mode(&vinfo); | |
| 933 } | |
| 934 #ifdef FBCON_DEBUG | |
| 935 fprintf(stderr, "Printing wanted vinfo:\n"); | |
| 936 print_vinfo(&vinfo); | |
| 937 #endif | |
| 938 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { | |
| 939 vinfo.yres_virtual = height; | |
| 940 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { | |
| 941 SDL_SetError("Couldn't set console screen info"); | |
| 942 return(NULL); | |
| 943 } | |
| 944 } | |
|
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Merged DGA video surface handling improvements, unified locking code.
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parents:
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diff
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|
945 } else { |
|
63ec24e0575f
Merged DGA video surface handling improvements, unified locking code.
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
946 int maxheight; |
|
63ec24e0575f
Merged DGA video surface handling improvements, unified locking code.
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
947 |
|
63ec24e0575f
Merged DGA video surface handling improvements, unified locking code.
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948 /* Figure out how much video memory is available */ |
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949 if ( flags & SDL_DOUBLEBUF ) { |
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950 maxheight = height*2; |
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951 } else { |
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952 maxheight = height; |
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953 } |
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954 if ( vinfo.yres_virtual > maxheight ) { |
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955 vinfo.yres_virtual = maxheight; |
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956 } |
| 0 | 957 } |
| 958 cache_vinfo = vinfo; | |
| 959 #ifdef FBCON_DEBUG | |
| 960 fprintf(stderr, "Printing actual vinfo:\n"); | |
| 961 print_vinfo(&vinfo); | |
| 962 #endif | |
| 963 Rmask = 0; | |
| 964 for ( i=0; i<vinfo.red.length; ++i ) { | |
| 965 Rmask <<= 1; | |
| 966 Rmask |= (0x00000001<<vinfo.red.offset); | |
| 967 } | |
| 968 Gmask = 0; | |
| 969 for ( i=0; i<vinfo.green.length; ++i ) { | |
| 970 Gmask <<= 1; | |
| 971 Gmask |= (0x00000001<<vinfo.green.offset); | |
| 972 } | |
| 973 Bmask = 0; | |
| 974 for ( i=0; i<vinfo.blue.length; ++i ) { | |
| 975 Bmask <<= 1; | |
| 976 Bmask |= (0x00000001<<vinfo.blue.offset); | |
| 977 } | |
| 978 if ( ! SDL_ReallocFormat(current, vinfo.bits_per_pixel, | |
| 979 Rmask, Gmask, Bmask, 0) ) { | |
| 980 return(NULL); | |
| 981 } | |
| 982 | |
| 983 /* Get the fixed information about the console hardware. | |
| 984 This is necessary since finfo.line_length changes. | |
| 985 */ | |
| 986 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 987 SDL_SetError("Couldn't get console hardware info"); | |
| 988 return(NULL); | |
| 989 } | |
| 990 | |
| 991 /* Save hardware palette, if needed */ | |
| 992 FB_SavePalette(this, &finfo, &vinfo); | |
| 993 | |
| 994 /* Set up the new mode framebuffer */ | |
| 995 current->flags = (SDL_FULLSCREEN|SDL_HWSURFACE); | |
| 996 current->w = vinfo.xres; | |
| 997 current->h = vinfo.yres; | |
| 998 current->pitch = finfo.line_length; | |
| 999 current->pixels = mapped_mem+mapped_offset; | |
| 1000 | |
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1001 /* Set up the information for hardware surfaces */ |
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1002 surfaces_mem = (char *)current->pixels + |
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1003 vinfo.yres_virtual*current->pitch; |
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1004 surfaces_len = (mapped_memlen-(surfaces_mem-mapped_mem)); |
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1005 FB_FreeHWSurfaces(this); |
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1006 FB_InitHWSurfaces(this, current, surfaces_mem, surfaces_len); |
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1007 |
| 0 | 1008 /* Let the application know we have a hardware palette */ |
| 1009 switch (finfo.visual) { | |
| 1010 case FB_VISUAL_PSEUDOCOLOR: | |
| 1011 current->flags |= SDL_HWPALETTE; | |
| 1012 break; | |
| 1013 default: | |
| 1014 break; | |
| 1015 } | |
| 1016 | |
| 1017 /* Update for double-buffering, if we can */ | |
| 1018 if ( flags & SDL_DOUBLEBUF ) { | |
| 1019 if ( vinfo.yres_virtual == (height*2) ) { | |
| 1020 current->flags |= SDL_DOUBLEBUF; | |
| 1021 flip_page = 0; | |
| 1022 flip_address[0] = (char *)current->pixels; | |
| 1023 flip_address[1] = (char *)current->pixels+ | |
| 1024 current->h*current->pitch; | |
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1025 this->screen = current; |
| 0 | 1026 FB_FlipHWSurface(this, current); |
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1027 this->screen = NULL; |
| 0 | 1028 } |
| 1029 } | |
| 1030 | |
| 1031 /* Set the update rectangle function */ | |
| 1032 this->UpdateRects = FB_DirectUpdate; | |
| 1033 | |
| 1034 /* We're done */ | |
| 1035 return(current); | |
| 1036 } | |
| 1037 | |
| 1038 #ifdef FBCON_DEBUG | |
| 1039 void FB_DumpHWSurfaces(_THIS) | |
| 1040 { | |
| 1041 vidmem_bucket *bucket; | |
| 1042 | |
| 1043 printf("Memory left: %d (%d total)\n", surfaces_memleft, surfaces_memtotal); | |
| 1044 printf("\n"); | |
| 1045 printf(" Base Size\n"); | |
| 1046 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 1047 printf("Bucket: %p, %d (%s)\n", bucket->base, bucket->size, bucket->used ? "used" : "free"); | |
| 1048 if ( bucket->prev ) { | |
| 1049 if ( bucket->base != bucket->prev->base+bucket->prev->size ) { | |
| 1050 printf("Warning, corrupt bucket list! (prev)\n"); | |
| 1051 } | |
| 1052 } else { | |
| 1053 if ( bucket != &surfaces ) { | |
| 1054 printf("Warning, corrupt bucket list! (!prev)\n"); | |
| 1055 } | |
| 1056 } | |
| 1057 if ( bucket->next ) { | |
| 1058 if ( bucket->next->base != bucket->base+bucket->size ) { | |
| 1059 printf("Warning, corrupt bucket list! (next)\n"); | |
| 1060 } | |
| 1061 } | |
| 1062 } | |
| 1063 printf("\n"); | |
| 1064 } | |
| 1065 #endif | |
| 1066 | |
|
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1067 static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size) |
| 0 | 1068 { |
|
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1069 vidmem_bucket *bucket; |
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1070 |
| 0 | 1071 surfaces_memtotal = size; |
| 1072 surfaces_memleft = size; | |
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1073 |
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1074 if ( surfaces_memleft > 0 ) { |
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1075 bucket = (vidmem_bucket *)SDL_malloc(sizeof(*bucket)); |
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1076 if ( bucket == NULL ) { |
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1077 SDL_OutOfMemory(); |
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1078 return(-1); |
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1079 } |
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1080 bucket->prev = &surfaces; |
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1081 bucket->used = 0; |
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1082 bucket->dirty = 0; |
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1083 bucket->base = base; |
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1084 bucket->size = size; |
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1085 bucket->next = NULL; |
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1086 } else { |
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1087 bucket = NULL; |
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1088 } |
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1089 |
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1090 surfaces.prev = NULL; |
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1091 surfaces.used = 1; |
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1092 surfaces.dirty = 0; |
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1093 surfaces.base = screen->pixels; |
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1094 surfaces.size = (unsigned int)((long)base - (long)surfaces.base); |
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1095 surfaces.next = bucket; |
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1096 screen->hwdata = (struct private_hwdata *)&surfaces; |
| 0 | 1097 return(0); |
| 1098 } | |
| 1099 static void FB_FreeHWSurfaces(_THIS) | |
| 1100 { | |
| 1101 vidmem_bucket *bucket, *freeable; | |
| 1102 | |
| 1103 bucket = surfaces.next; | |
| 1104 while ( bucket ) { | |
| 1105 freeable = bucket; | |
| 1106 bucket = bucket->next; | |
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1107 SDL_free(freeable); |
| 0 | 1108 } |
| 1109 surfaces.next = NULL; | |
| 1110 } | |
| 1111 | |
| 1112 static int FB_AllocHWSurface(_THIS, SDL_Surface *surface) | |
| 1113 { | |
| 1114 vidmem_bucket *bucket; | |
| 1115 int size; | |
| 1116 int extra; | |
| 1117 | |
| 1118 /* Temporarily, we only allow surfaces the same width as display. | |
| 1119 Some blitters require the pitch between two hardware surfaces | |
| 1120 to be the same. Others have interesting alignment restrictions. | |
| 1121 Until someone who knows these details looks at the code... | |
| 1122 */ | |
| 1123 if ( surface->pitch > SDL_VideoSurface->pitch ) { | |
| 1124 SDL_SetError("Surface requested wider than screen"); | |
| 1125 return(-1); | |
| 1126 } | |
| 1127 surface->pitch = SDL_VideoSurface->pitch; | |
| 1128 size = surface->h * surface->pitch; | |
| 1129 #ifdef FBCON_DEBUG | |
| 1130 fprintf(stderr, "Allocating bucket of %d bytes\n", size); | |
| 1131 #endif | |
| 1132 | |
| 1133 /* Quick check for available mem */ | |
| 1134 if ( size > surfaces_memleft ) { | |
| 1135 SDL_SetError("Not enough video memory"); | |
| 1136 return(-1); | |
| 1137 } | |
| 1138 | |
| 1139 /* Search for an empty bucket big enough */ | |
| 1140 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 1141 if ( ! bucket->used && (size <= bucket->size) ) { | |
| 1142 break; | |
| 1143 } | |
| 1144 } | |
| 1145 if ( bucket == NULL ) { | |
| 1146 SDL_SetError("Video memory too fragmented"); | |
| 1147 return(-1); | |
| 1148 } | |
| 1149 | |
| 1150 /* Create a new bucket for left-over memory */ | |
| 1151 extra = (bucket->size - size); | |
| 1152 if ( extra ) { | |
| 1153 vidmem_bucket *newbucket; | |
| 1154 | |
| 1155 #ifdef FBCON_DEBUG | |
| 1156 fprintf(stderr, "Adding new free bucket of %d bytes\n", extra); | |
| 1157 #endif | |
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1158 newbucket = (vidmem_bucket *)SDL_malloc(sizeof(*newbucket)); |
| 0 | 1159 if ( newbucket == NULL ) { |
| 1160 SDL_OutOfMemory(); | |
| 1161 return(-1); | |
| 1162 } | |
| 1163 newbucket->prev = bucket; | |
| 1164 newbucket->used = 0; | |
| 1165 newbucket->base = bucket->base+size; | |
| 1166 newbucket->size = extra; | |
| 1167 newbucket->next = bucket->next; | |
| 1168 if ( bucket->next ) { | |
| 1169 bucket->next->prev = newbucket; | |
| 1170 } | |
| 1171 bucket->next = newbucket; | |
| 1172 } | |
| 1173 | |
| 1174 /* Set the current bucket values and return it! */ | |
| 1175 bucket->used = 1; | |
| 1176 bucket->size = size; | |
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1177 bucket->dirty = 0; |
| 0 | 1178 #ifdef FBCON_DEBUG |
| 1179 fprintf(stderr, "Allocated %d bytes at %p\n", bucket->size, bucket->base); | |
| 1180 #endif | |
| 1181 surfaces_memleft -= size; | |
| 1182 surface->flags |= SDL_HWSURFACE; | |
| 1183 surface->pixels = bucket->base; | |
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1184 surface->hwdata = (struct private_hwdata *)bucket; |
| 0 | 1185 return(0); |
| 1186 } | |
| 1187 static void FB_FreeHWSurface(_THIS, SDL_Surface *surface) | |
| 1188 { | |
| 1189 vidmem_bucket *bucket, *freeable; | |
| 1190 | |
| 1191 /* Look for the bucket in the current list */ | |
| 1192 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
|
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1193 if ( bucket == (vidmem_bucket *)surface->hwdata ) { |
| 0 | 1194 break; |
| 1195 } | |
| 1196 } | |
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1197 if ( bucket && bucket->used ) { |
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1198 /* Add the memory back to the total */ |
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1199 #ifdef DGA_DEBUG |
| 0 | 1200 printf("Freeing bucket of %d bytes\n", bucket->size); |
| 1201 #endif | |
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1202 surfaces_memleft += bucket->size; |
| 0 | 1203 |
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1204 /* Can we merge the space with surrounding buckets? */ |
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1205 bucket->used = 0; |
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1206 if ( bucket->next && ! bucket->next->used ) { |
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1207 #ifdef DGA_DEBUG |
| 0 | 1208 printf("Merging with next bucket, for %d total bytes\n", bucket->size+bucket->next->size); |
| 1209 #endif | |
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1210 freeable = bucket->next; |
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1211 bucket->size += bucket->next->size; |
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1212 bucket->next = bucket->next->next; |
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1213 if ( bucket->next ) { |
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1214 bucket->next->prev = bucket; |
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1215 } |
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1216 SDL_free(freeable); |
| 0 | 1217 } |
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1218 if ( bucket->prev && ! bucket->prev->used ) { |
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1219 #ifdef DGA_DEBUG |
| 0 | 1220 printf("Merging with previous bucket, for %d total bytes\n", bucket->prev->size+bucket->size); |
| 1221 #endif | |
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1222 freeable = bucket; |
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1223 bucket->prev->size += bucket->size; |
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1224 bucket->prev->next = bucket->next; |
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1225 if ( bucket->next ) { |
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1226 bucket->next->prev = bucket->prev; |
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1227 } |
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1228 SDL_free(freeable); |
| 0 | 1229 } |
| 1230 } | |
| 1231 surface->pixels = NULL; | |
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1232 surface->hwdata = NULL; |
| 0 | 1233 } |
| 1234 static int FB_LockHWSurface(_THIS, SDL_Surface *surface) | |
| 1235 { | |
|
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1236 if ( surface == this->screen ) { |
| 0 | 1237 SDL_mutexP(hw_lock); |
|
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1238 if ( FB_IsSurfaceBusy(surface) ) { |
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1239 FB_WaitBusySurfaces(this); |
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1240 } |
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1241 } else { |
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1242 if ( FB_IsSurfaceBusy(surface) ) { |
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1243 FB_WaitBusySurfaces(this); |
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1244 } |
| 0 | 1245 } |
| 1246 return(0); | |
| 1247 } | |
| 1248 static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
| 1249 { | |
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1250 if ( surface == this->screen ) { |
| 0 | 1251 SDL_mutexV(hw_lock); |
| 1252 } | |
| 1253 } | |
| 1254 | |
| 1255 static void FB_WaitVBL(_THIS) | |
| 1256 { | |
| 1257 #ifdef FBIOWAITRETRACE /* Heheh, this didn't make it into the main kernel */ | |
| 1258 ioctl(console_fd, FBIOWAITRETRACE, 0); | |
| 1259 #endif | |
| 1260 return; | |
| 1261 } | |
| 1262 | |
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1263 static void FB_WaitIdle(_THIS) |
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1264 { |
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1265 return; |
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1266 } |
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1267 |
| 0 | 1268 static int FB_FlipHWSurface(_THIS, SDL_Surface *surface) |
| 1269 { | |
| 1270 /* Wait for vertical retrace and then flip display */ | |
| 1271 cache_vinfo.yoffset = flip_page*surface->h; | |
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1272 if ( FB_IsSurfaceBusy(this->screen) ) { |
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1273 FB_WaitBusySurfaces(this); |
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1274 } |
| 0 | 1275 wait_vbl(this); |
| 1276 if ( ioctl(console_fd, FBIOPAN_DISPLAY, &cache_vinfo) < 0 ) { | |
| 1277 SDL_SetError("ioctl(FBIOPAN_DISPLAY) failed"); | |
| 1278 return(-1); | |
| 1279 } | |
| 1280 flip_page = !flip_page; | |
| 1281 | |
| 1282 surface->pixels = flip_address[flip_page]; | |
| 1283 return(0); | |
| 1284 } | |
| 1285 | |
| 1286 static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) | |
| 1287 { | |
| 1288 /* The application is already updating the visible video memory */ | |
| 1289 return; | |
| 1290 } | |
| 1291 | |
| 1292 #ifdef VGA16_FBCON_SUPPORT | |
| 1293 /* Code adapted with thanks from the XFree86 VGA16 driver! :) */ | |
| 1294 #define writeGr(index, value) \ | |
| 1295 outb(index, 0x3CE); \ | |
| 1296 outb(value, 0x3CF); | |
| 1297 #define writeSeq(index, value) \ | |
| 1298 outb(index, 0x3C4); \ | |
| 1299 outb(value, 0x3C5); | |
| 1300 | |
| 1301 static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects) | |
| 1302 { | |
| 1303 SDL_Surface *screen; | |
| 1304 int width, height, FBPitch, left, i, j, SRCPitch, phase; | |
| 1305 register Uint32 m; | |
| 1306 Uint8 s1, s2, s3, s4; | |
| 1307 Uint32 *src, *srcPtr; | |
| 1308 Uint8 *dst, *dstPtr; | |
| 1309 | |
| 1310 screen = this->screen; | |
| 1311 FBPitch = screen->w >> 3; | |
| 1312 SRCPitch = screen->pitch >> 2; | |
| 1313 | |
| 1314 writeGr(0x03, 0x00); | |
| 1315 writeGr(0x05, 0x00); | |
| 1316 writeGr(0x01, 0x00); | |
| 1317 writeGr(0x08, 0xFF); | |
| 1318 | |
| 1319 while(numrects--) { | |
| 1320 left = rects->x & ~7; | |
| 1321 width = (rects->w + 7) >> 3; | |
| 1322 height = rects->h; | |
| 1323 src = (Uint32*)screen->pixels + (rects->y * SRCPitch) + (left >> 2); | |
| 1324 dst = (Uint8*)mapped_mem + (rects->y * FBPitch) + (left >> 3); | |
| 1325 | |
| 1326 if((phase = (long)dst & 3L)) { | |
| 1327 phase = 4 - phase; | |
| 1328 if(phase > width) phase = width; | |
| 1329 width -= phase; | |
| 1330 } | |
| 1331 | |
| 1332 while(height--) { | |
| 1333 writeSeq(0x02, 1 << 0); | |
| 1334 dstPtr = dst; | |
| 1335 srcPtr = src; | |
| 1336 i = width; | |
| 1337 j = phase; | |
| 1338 while(j--) { | |
| 1339 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1340 *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1341 srcPtr += 2; | |
| 1342 } | |
| 1343 while(i >= 4) { | |
| 1344 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1345 s1 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1346 m = (srcPtr[3] & 0x01010101) | ((srcPtr[2] & 0x01010101) << 4); | |
| 1347 s2 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1348 m = (srcPtr[5] & 0x01010101) | ((srcPtr[4] & 0x01010101) << 4); | |
| 1349 s3 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1350 m = (srcPtr[7] & 0x01010101) | ((srcPtr[6] & 0x01010101) << 4); | |
| 1351 s4 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1352 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1353 srcPtr += 8; | |
| 1354 dstPtr += 4; | |
| 1355 i -= 4; | |
| 1356 } | |
| 1357 while(i--) { | |
| 1358 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1359 *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1360 srcPtr += 2; | |
| 1361 } | |
| 1362 | |
| 1363 writeSeq(0x02, 1 << 1); | |
| 1364 dstPtr = dst; | |
| 1365 srcPtr = src; | |
| 1366 i = width; | |
| 1367 j = phase; | |
| 1368 while(j--) { | |
| 1369 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1370 *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1371 srcPtr += 2; | |
| 1372 } | |
| 1373 while(i >= 4) { | |
| 1374 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1375 s1 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1376 m = (srcPtr[3] & 0x02020202) | ((srcPtr[2] & 0x02020202) << 4); | |
| 1377 s2 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1378 m = (srcPtr[5] & 0x02020202) | ((srcPtr[4] & 0x02020202) << 4); | |
| 1379 s3 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1380 m = (srcPtr[7] & 0x02020202) | ((srcPtr[6] & 0x02020202) << 4); | |
| 1381 s4 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1382 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1383 srcPtr += 8; | |
| 1384 dstPtr += 4; | |
| 1385 i -= 4; | |
| 1386 } | |
| 1387 while(i--) { | |
| 1388 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1389 *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1390 srcPtr += 2; | |
| 1391 } | |
| 1392 | |
| 1393 writeSeq(0x02, 1 << 2); | |
| 1394 dstPtr = dst; | |
| 1395 srcPtr = src; | |
| 1396 i = width; | |
| 1397 j = phase; | |
| 1398 while(j--) { | |
| 1399 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1400 *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1401 srcPtr += 2; | |
| 1402 } | |
| 1403 while(i >= 4) { | |
| 1404 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1405 s1 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1406 m = (srcPtr[3] & 0x04040404) | ((srcPtr[2] & 0x04040404) << 4); | |
| 1407 s2 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1408 m = (srcPtr[5] & 0x04040404) | ((srcPtr[4] & 0x04040404) << 4); | |
| 1409 s3 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1410 m = (srcPtr[7] & 0x04040404) | ((srcPtr[6] & 0x04040404) << 4); | |
| 1411 s4 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1412 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1413 srcPtr += 8; | |
| 1414 dstPtr += 4; | |
| 1415 i -= 4; | |
| 1416 } | |
| 1417 while(i--) { | |
| 1418 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1419 *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1420 srcPtr += 2; | |
| 1421 } | |
| 1422 | |
| 1423 writeSeq(0x02, 1 << 3); | |
| 1424 dstPtr = dst; | |
| 1425 srcPtr = src; | |
| 1426 i = width; | |
| 1427 j = phase; | |
| 1428 while(j--) { | |
| 1429 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1430 *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1431 srcPtr += 2; | |
| 1432 } | |
| 1433 while(i >= 4) { | |
| 1434 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1435 s1 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1436 m = (srcPtr[3] & 0x08080808) | ((srcPtr[2] & 0x08080808) << 4); | |
| 1437 s2 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1438 m = (srcPtr[5] & 0x08080808) | ((srcPtr[4] & 0x08080808) << 4); | |
| 1439 s3 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1440 m = (srcPtr[7] & 0x08080808) | ((srcPtr[6] & 0x08080808) << 4); | |
| 1441 s4 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1442 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1443 srcPtr += 8; | |
| 1444 dstPtr += 4; | |
| 1445 i -= 4; | |
| 1446 } | |
| 1447 while(i--) { | |
| 1448 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1449 *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1450 srcPtr += 2; | |
| 1451 } | |
| 1452 | |
| 1453 dst += FBPitch; | |
| 1454 src += SRCPitch; | |
| 1455 } | |
| 1456 rects++; | |
| 1457 } | |
| 1458 } | |
| 1459 #endif /* VGA16_FBCON_SUPPORT */ | |
| 1460 | |
| 1461 void FB_SavePaletteTo(_THIS, int palette_len, __u16 *area) | |
| 1462 { | |
| 1463 struct fb_cmap cmap; | |
| 1464 | |
| 1465 cmap.start = 0; | |
| 1466 cmap.len = palette_len; | |
| 1467 cmap.red = &area[0*palette_len]; | |
| 1468 cmap.green = &area[1*palette_len]; | |
| 1469 cmap.blue = &area[2*palette_len]; | |
| 1470 cmap.transp = NULL; | |
| 1471 ioctl(console_fd, FBIOGETCMAP, &cmap); | |
| 1472 } | |
| 1473 | |
| 1474 void FB_RestorePaletteFrom(_THIS, int palette_len, __u16 *area) | |
| 1475 { | |
| 1476 struct fb_cmap cmap; | |
| 1477 | |
| 1478 cmap.start = 0; | |
| 1479 cmap.len = palette_len; | |
| 1480 cmap.red = &area[0*palette_len]; | |
| 1481 cmap.green = &area[1*palette_len]; | |
| 1482 cmap.blue = &area[2*palette_len]; | |
| 1483 cmap.transp = NULL; | |
| 1484 ioctl(console_fd, FBIOPUTCMAP, &cmap); | |
| 1485 } | |
| 1486 | |
| 1487 static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, | |
| 1488 struct fb_var_screeninfo *vinfo) | |
| 1489 { | |
| 1490 int i; | |
| 1491 | |
| 1492 /* Save hardware palette, if needed */ | |
| 1493 if ( finfo->visual == FB_VISUAL_PSEUDOCOLOR ) { | |
| 1494 saved_cmaplen = 1<<vinfo->bits_per_pixel; | |
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1495 saved_cmap=(__u16 *)SDL_malloc(3*saved_cmaplen*sizeof(*saved_cmap)); |
| 0 | 1496 if ( saved_cmap != NULL ) { |
| 1497 FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); | |
| 1498 } | |
| 1499 } | |
| 1500 | |
| 1501 /* Added support for FB_VISUAL_DIRECTCOLOR. | |
| 1502 With this mode pixel information is passed through the palette... | |
| 1503 Neat fading and gamma correction effects can be had by simply | |
| 1504 fooling around with the palette instead of changing the pixel | |
| 1505 values themselves... Very neat! | |
| 1506 | |
| 1507 Adam Meyerowitz 1/19/2000 | |
| 1508 ameyerow@optonline.com | |
| 1509 */ | |
| 1510 if ( finfo->visual == FB_VISUAL_DIRECTCOLOR ) { | |
| 1511 __u16 new_entries[3*256]; | |
| 1512 | |
| 1513 /* Save the colormap */ | |
| 1514 saved_cmaplen = 256; | |
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1515 saved_cmap=(__u16 *)SDL_malloc(3*saved_cmaplen*sizeof(*saved_cmap)); |
| 0 | 1516 if ( saved_cmap != NULL ) { |
| 1517 FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); | |
| 1518 } | |
| 1519 | |
| 1520 /* Allocate new identity colormap */ | |
| 1521 for ( i=0; i<256; ++i ) { | |
| 1522 new_entries[(0*256)+i] = | |
| 1523 new_entries[(1*256)+i] = | |
| 1524 new_entries[(2*256)+i] = (i<<8)|i; | |
| 1525 } | |
| 1526 FB_RestorePaletteFrom(this, 256, new_entries); | |
| 1527 } | |
| 1528 } | |
| 1529 | |
| 1530 static void FB_RestorePalette(_THIS) | |
| 1531 { | |
| 1532 /* Restore the original palette */ | |
| 1533 if ( saved_cmap ) { | |
| 1534 FB_RestorePaletteFrom(this, saved_cmaplen, saved_cmap); | |
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1535 SDL_free(saved_cmap); |
| 0 | 1536 saved_cmap = NULL; |
| 1537 } | |
| 1538 } | |
| 1539 | |
| 1540 static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | |
| 1541 { | |
| 1542 int i; | |
| 1543 __u16 r[256]; | |
| 1544 __u16 g[256]; | |
| 1545 __u16 b[256]; | |
| 1546 struct fb_cmap cmap; | |
| 1547 | |
| 1548 /* Set up the colormap */ | |
| 1549 for (i = 0; i < ncolors; i++) { | |
| 1550 r[i] = colors[i].r << 8; | |
| 1551 g[i] = colors[i].g << 8; | |
| 1552 b[i] = colors[i].b << 8; | |
| 1553 } | |
| 1554 cmap.start = firstcolor; | |
| 1555 cmap.len = ncolors; | |
| 1556 cmap.red = r; | |
| 1557 cmap.green = g; | |
| 1558 cmap.blue = b; | |
| 1559 cmap.transp = NULL; | |
| 1560 | |
| 1561 if( (ioctl(console_fd, FBIOPUTCMAP, &cmap) < 0) || | |
| 1562 !(this->screen->flags & SDL_HWPALETTE) ) { | |
| 1563 colors = this->screen->format->palette->colors; | |
| 1564 ncolors = this->screen->format->palette->ncolors; | |
| 1565 cmap.start = 0; | |
| 1566 cmap.len = ncolors; | |
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1567 SDL_memset(r, 0, sizeof(r)); |
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1568 SDL_memset(g, 0, sizeof(g)); |
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1569 SDL_memset(b, 0, sizeof(b)); |
| 0 | 1570 if ( ioctl(console_fd, FBIOGETCMAP, &cmap) == 0 ) { |
| 1571 for ( i=ncolors-1; i>=0; --i ) { | |
| 1572 colors[i].r = (r[i]>>8); | |
| 1573 colors[i].g = (g[i]>>8); | |
| 1574 colors[i].b = (b[i]>>8); | |
| 1575 } | |
| 1576 } | |
| 1577 return(0); | |
| 1578 } | |
| 1579 return(1); | |
| 1580 } | |
| 1581 | |
| 1582 /* Note: If we are terminated, this could be called in the middle of | |
| 1583 another SDL video routine -- notably UpdateRects. | |
| 1584 */ | |
| 1585 static void FB_VideoQuit(_THIS) | |
| 1586 { | |
| 1587 int i, j; | |
| 1588 | |
| 1589 if ( this->screen ) { | |
| 1590 /* Clear screen and tell SDL not to free the pixels */ | |
| 1591 if ( this->screen->pixels && FB_InGraphicsMode(this) ) { | |
|
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1592 #if defined(__powerpc__) || defined(__ia64__) /* SIGBUS when using SDL_memset() ?? */ |
| 0 | 1593 Uint8 *rowp = (Uint8 *)this->screen->pixels; |
| 1594 int left = this->screen->pitch*this->screen->h; | |
| 1595 while ( left-- ) { *rowp++ = 0; } | |
| 1596 #else | |
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1597 SDL_memset(this->screen->pixels,0,this->screen->h*this->screen->pitch); |
| 0 | 1598 #endif |
| 1599 } | |
| 1600 /* This test fails when using the VGA16 shadow memory */ | |
| 1601 if ( ((char *)this->screen->pixels >= mapped_mem) && | |
| 1602 ((char *)this->screen->pixels < (mapped_mem+mapped_memlen)) ) { | |
| 1603 this->screen->pixels = NULL; | |
| 1604 } | |
| 1605 } | |
| 1606 | |
| 1607 /* Clear the lock mutex */ | |
| 1608 if ( hw_lock ) { | |
| 1609 SDL_DestroyMutex(hw_lock); | |
| 1610 hw_lock = NULL; | |
| 1611 } | |
| 1612 | |
| 1613 /* Clean up defined video modes */ | |
| 1614 for ( i=0; i<NUM_MODELISTS; ++i ) { | |
| 1615 if ( SDL_modelist[i] != NULL ) { | |
| 1616 for ( j=0; SDL_modelist[i][j]; ++j ) { | |
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parents:
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changeset
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1617 SDL_free(SDL_modelist[i][j]); |
| 0 | 1618 } |
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Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
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1619 SDL_free(SDL_modelist[i]); |
| 0 | 1620 SDL_modelist[i] = NULL; |
| 1621 } | |
| 1622 } | |
| 1623 | |
| 1624 /* Clean up the memory bucket list */ | |
| 1625 FB_FreeHWSurfaces(this); | |
| 1626 | |
| 1627 /* Close console and input file descriptors */ | |
| 1628 if ( console_fd > 0 ) { | |
| 1629 /* Unmap the video framebuffer and I/O registers */ | |
| 1630 if ( mapped_mem ) { | |
| 1631 munmap(mapped_mem, mapped_memlen); | |
| 1632 mapped_mem = NULL; | |
| 1633 } | |
| 1634 if ( mapped_io ) { | |
| 1635 munmap(mapped_io, mapped_iolen); | |
| 1636 mapped_io = NULL; | |
| 1637 } | |
| 1638 | |
| 1639 /* Restore the original video mode and palette */ | |
| 1640 if ( FB_InGraphicsMode(this) ) { | |
| 1641 FB_RestorePalette(this); | |
| 1642 ioctl(console_fd, FBIOPUT_VSCREENINFO, &saved_vinfo); | |
| 1643 } | |
| 1644 | |
| 1645 /* We're all done with the framebuffer */ | |
| 1646 close(console_fd); | |
| 1647 console_fd = -1; | |
| 1648 } | |
| 1649 FB_CloseMouse(this); | |
| 1650 FB_CloseKeyboard(this); | |
| 1651 } |