Mercurial > sdl-ios-xcode
annotate src/video/fbcon/SDL_fbvideo.c @ 1358:c71e05b4dc2e
More header massaging... works great on Windows. ;-)
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 10 Feb 2006 06:48:43 +0000 |
| parents | d02b552e5304 |
| children | 19418e4422cb |
| 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_video.h" | |
| 35 #include "SDL_mouse.h" | |
| 36 #include "SDL_sysvideo.h" | |
| 37 #include "SDL_pixels_c.h" | |
| 38 #include "SDL_events_c.h" | |
| 39 #include "SDL_fbvideo.h" | |
| 40 #include "SDL_fbmouse_c.h" | |
| 41 #include "SDL_fbevents_c.h" | |
| 42 #include "SDL_fb3dfx.h" | |
| 43 #include "SDL_fbmatrox.h" | |
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44 #include "SDL_fbriva.h" |
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45 |
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46 /*#define FBCON_DEBUG*/ |
| 0 | 47 |
| 48 #if defined(i386) && defined(FB_TYPE_VGA_PLANES) | |
| 49 #define VGA16_FBCON_SUPPORT | |
| 50 #ifndef FB_AUX_VGA_PLANES_VGA4 | |
| 51 #define FB_AUX_VGA_PLANES_VGA4 0 | |
| 52 #endif | |
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53 /* |
| 0 | 54 static inline void outb (unsigned char value, unsigned short port) |
| 55 { | |
| 56 __asm__ __volatile__ ("outb %b0,%w1"::"a" (value), "Nd" (port)); | |
| 57 } | |
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58 */ |
| 0 | 59 #endif /* FB_TYPE_VGA_PLANES */ |
| 60 | |
| 61 /* A list of video resolutions that we query for (sorted largest to smallest) */ | |
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62 static const SDL_Rect checkres[] = { |
| 0 | 63 { 0, 0, 1600, 1200 }, /* 16 bpp: 0x11E, or 286 */ |
| 64 { 0, 0, 1408, 1056 }, /* 16 bpp: 0x19A, or 410 */ | |
| 65 { 0, 0, 1280, 1024 }, /* 16 bpp: 0x11A, or 282 */ | |
| 66 { 0, 0, 1152, 864 }, /* 16 bpp: 0x192, or 402 */ | |
| 67 { 0, 0, 1024, 768 }, /* 16 bpp: 0x117, or 279 */ | |
| 68 { 0, 0, 960, 720 }, /* 16 bpp: 0x18A, or 394 */ | |
| 69 { 0, 0, 800, 600 }, /* 16 bpp: 0x114, or 276 */ | |
| 70 { 0, 0, 768, 576 }, /* 16 bpp: 0x182, or 386 */ | |
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71 { 0, 0, 720, 576 }, /* PAL */ |
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72 { 0, 0, 720, 480 }, /* NTSC */ |
| 0 | 73 { 0, 0, 640, 480 }, /* 16 bpp: 0x111, or 273 */ |
| 74 { 0, 0, 640, 400 }, /* 8 bpp: 0x100, or 256 */ | |
| 75 { 0, 0, 512, 384 }, | |
| 76 { 0, 0, 320, 240 }, | |
| 77 { 0, 0, 320, 200 } | |
| 78 }; | |
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79 static const struct { |
| 0 | 80 int xres; |
| 81 int yres; | |
| 82 int pixclock; | |
| 83 int left; | |
| 84 int right; | |
| 85 int upper; | |
| 86 int lower; | |
| 87 int hslen; | |
| 88 int vslen; | |
| 89 int sync; | |
| 90 int vmode; | |
| 91 } vesa_timings[] = { | |
| 92 #ifdef USE_VESA_TIMINGS /* Only tested on Matrox Millenium I */ | |
| 93 { 640, 400, 39771, 48, 16, 39, 8, 96, 2, 2, 0 }, /* 70 Hz */ | |
| 94 { 640, 480, 39683, 48, 16, 33, 10, 96, 2, 0, 0 }, /* 60 Hz */ | |
| 95 { 768, 576, 26101, 144, 16, 28, 6, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 96 { 800, 600, 24038, 144, 24, 28, 8, 112, 6, 0, 0 }, /* 60 Hz */ | |
| 97 { 960, 720, 17686, 144, 24, 28, 8, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 98 { 1024, 768, 15386, 160, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | |
| 99 { 1152, 864, 12286, 192, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | |
| 100 { 1280, 1024, 9369, 224, 32, 32, 4, 136, 4, 0, 0 }, /* 60 Hz */ | |
| 101 { 1408, 1056, 8214, 256, 40, 32, 5, 144, 5, 0, 0 }, /* 60 Hz */ | |
| 102 { 1600, 1200,/*?*/0, 272, 48, 32, 5, 152, 5, 0, 0 }, /* 60 Hz */ | |
| 103 #else | |
| 104 /* You can generate these timings from your XF86Config file using | |
| 105 the 'modeline2fb' perl script included with the fbset package. | |
| 106 These timings were generated for Matrox Millenium I, 15" monitor. | |
| 107 */ | |
| 108 { 320, 200, 79440, 16, 16, 20, 4, 48, 1, 0, 2 }, /* 70 Hz */ | |
| 109 { 320, 240, 63492, 16, 16, 16, 4, 48, 2, 0, 2 }, /* 72 Hz */ | |
| 110 { 512, 384, 49603, 48, 16, 16, 1, 64, 3, 0, 0 }, /* 78 Hz */ | |
| 111 { 640, 400, 31746, 96, 32, 41, 1, 64, 3, 2, 0 }, /* 85 Hz */ | |
| 112 { 640, 480, 31746, 120, 16, 16, 1, 64, 3, 0, 0 }, /* 75 Hz */ | |
| 113 { 768, 576, 26101, 144, 16, 28, 6, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 114 { 800, 600, 20000, 64, 56, 23, 37, 120, 6, 3, 0 }, /* 72 Hz */ | |
| 115 { 960, 720, 17686, 144, 24, 28, 8, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 116 { 1024, 768, 13333, 144, 24, 29, 3, 136, 6, 0, 0 }, /* 70 Hz */ | |
| 117 { 1152, 864, 12286, 192, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | |
| 118 { 1280, 1024, 9369, 224, 32, 32, 4, 136, 4, 0, 0 }, /* 60 Hz */ | |
| 119 { 1408, 1056, 8214, 256, 40, 32, 5, 144, 5, 0, 0 }, /* 60 Hz */ | |
| 120 { 1600, 1200,/*?*/0, 272, 48, 32, 5, 152, 5, 0, 0 }, /* 60 Hz */ | |
| 121 #endif | |
| 122 }; | |
| 123 | |
| 124 /* Initialization/Query functions */ | |
| 125 static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat); | |
| 126 static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); | |
| 127 static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 128 #ifdef VGA16_FBCON_SUPPORT | |
| 129 static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 130 #endif | |
| 131 static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); | |
| 132 static void FB_VideoQuit(_THIS); | |
| 133 | |
| 134 /* Hardware surface functions */ | |
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135 static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size); |
| 0 | 136 static void FB_FreeHWSurfaces(_THIS); |
| 137 static int FB_AllocHWSurface(_THIS, SDL_Surface *surface); | |
| 138 static int FB_LockHWSurface(_THIS, SDL_Surface *surface); | |
| 139 static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface); | |
| 140 static void FB_FreeHWSurface(_THIS, SDL_Surface *surface); | |
| 141 static void FB_WaitVBL(_THIS); | |
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142 static void FB_WaitIdle(_THIS); |
| 0 | 143 static int FB_FlipHWSurface(_THIS, SDL_Surface *surface); |
| 144 | |
| 145 /* Internal palette functions */ | |
| 146 static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, | |
| 147 struct fb_var_screeninfo *vinfo); | |
| 148 static void FB_RestorePalette(_THIS); | |
| 149 | |
| 150 /* FB driver bootstrap functions */ | |
| 151 | |
| 152 static int FB_Available(void) | |
| 153 { | |
| 154 int console; | |
| 155 const char *SDL_fbdev; | |
| 156 | |
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157 SDL_fbdev = SDL_getenv("SDL_FBDEV"); |
| 0 | 158 if ( SDL_fbdev == NULL ) { |
| 159 SDL_fbdev = "/dev/fb0"; | |
| 160 } | |
| 161 console = open(SDL_fbdev, O_RDWR, 0); | |
| 162 if ( console >= 0 ) { | |
| 163 close(console); | |
| 164 } | |
| 165 return(console >= 0); | |
| 166 } | |
| 167 | |
| 168 static void FB_DeleteDevice(SDL_VideoDevice *device) | |
| 169 { | |
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170 SDL_free(device->hidden); |
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171 SDL_free(device); |
| 0 | 172 } |
| 173 | |
| 174 static SDL_VideoDevice *FB_CreateDevice(int devindex) | |
| 175 { | |
| 176 SDL_VideoDevice *this; | |
| 177 | |
| 178 /* Initialize all variables that we clean on shutdown */ | |
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179 this = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); |
| 0 | 180 if ( this ) { |
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181 SDL_memset(this, 0, (sizeof *this)); |
| 0 | 182 this->hidden = (struct SDL_PrivateVideoData *) |
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183 SDL_malloc((sizeof *this->hidden)); |
| 0 | 184 } |
| 185 if ( (this == NULL) || (this->hidden == NULL) ) { | |
| 186 SDL_OutOfMemory(); | |
| 187 if ( this ) { | |
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188 SDL_free(this); |
| 0 | 189 } |
| 190 return(0); | |
| 191 } | |
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192 SDL_memset(this->hidden, 0, (sizeof *this->hidden)); |
| 0 | 193 wait_vbl = FB_WaitVBL; |
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194 wait_idle = FB_WaitIdle; |
| 0 | 195 mouse_fd = -1; |
| 196 keyboard_fd = -1; | |
| 197 | |
| 198 /* Set the function pointers */ | |
| 199 this->VideoInit = FB_VideoInit; | |
| 200 this->ListModes = FB_ListModes; | |
| 201 this->SetVideoMode = FB_SetVideoMode; | |
| 202 this->SetColors = FB_SetColors; | |
| 203 this->UpdateRects = NULL; | |
| 204 this->VideoQuit = FB_VideoQuit; | |
| 205 this->AllocHWSurface = FB_AllocHWSurface; | |
| 206 this->CheckHWBlit = NULL; | |
| 207 this->FillHWRect = NULL; | |
| 208 this->SetHWColorKey = NULL; | |
| 209 this->SetHWAlpha = NULL; | |
| 210 this->LockHWSurface = FB_LockHWSurface; | |
| 211 this->UnlockHWSurface = FB_UnlockHWSurface; | |
| 212 this->FlipHWSurface = FB_FlipHWSurface; | |
| 213 this->FreeHWSurface = FB_FreeHWSurface; | |
| 214 this->SetCaption = NULL; | |
| 215 this->SetIcon = NULL; | |
| 216 this->IconifyWindow = NULL; | |
| 217 this->GrabInput = NULL; | |
| 218 this->GetWMInfo = NULL; | |
| 219 this->InitOSKeymap = FB_InitOSKeymap; | |
| 220 this->PumpEvents = FB_PumpEvents; | |
| 221 | |
| 222 this->free = FB_DeleteDevice; | |
| 223 | |
| 224 return this; | |
| 225 } | |
| 226 | |
| 227 VideoBootStrap FBCON_bootstrap = { | |
| 228 "fbcon", "Linux Framebuffer Console", | |
| 229 FB_Available, FB_CreateDevice | |
| 230 }; | |
| 231 | |
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232 #define FB_MODES_DB "/etc/fb.modes" |
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233 |
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234 static int read_fbmodes_line(FILE*f, char* line, int length) |
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235 { |
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236 int blank; |
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237 char* c; |
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238 int i; |
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239 |
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240 blank=0; |
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241 /* find a relevant line */ |
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242 do |
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243 { |
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244 if (fgets(line,length,f)<=0) |
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245 return 0; |
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246 c=line; |
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247 while(((*c=='\t')||(*c==' '))&&(*c!=0)) |
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248 c++; |
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249 |
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250 if ((*c=='\n')||(*c=='#')||(*c==0)) |
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251 blank=1; |
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252 else |
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253 blank=0; |
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254 } |
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255 while(blank); |
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256 /* remove whitespace at the begining of the string */ |
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257 i=0; |
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258 do |
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259 { |
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260 line[i]=c[i]; |
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261 i++; |
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262 } |
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263 while(c[i]!=0); |
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264 return 1; |
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265 } |
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266 |
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267 static int read_fbmodes_mode(FILE *f, struct fb_var_screeninfo *vinfo) |
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268 { |
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269 char line[1024]; |
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270 char option[256]; |
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271 |
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272 /* Find a "geometry" */ |
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273 do { |
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274 if (read_fbmodes_line(f, line, sizeof(line))==0) |
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275 return 0; |
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276 if (SDL_strncmp(line,"geometry",8)==0) |
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277 break; |
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278 } |
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279 while(1); |
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280 |
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281 SDL_sscanf(line, "geometry %d %d %d %d %d", &vinfo->xres, &vinfo->yres, |
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282 &vinfo->xres_virtual, &vinfo->yres_virtual, &vinfo->bits_per_pixel); |
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283 if (read_fbmodes_line(f, line, sizeof(line))==0) |
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284 return 0; |
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285 |
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286 SDL_sscanf(line, "timings %d %d %d %d %d %d %d", &vinfo->pixclock, |
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287 &vinfo->left_margin, &vinfo->right_margin, &vinfo->upper_margin, |
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288 &vinfo->lower_margin, &vinfo->hsync_len, &vinfo->vsync_len); |
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289 |
|
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290 vinfo->sync=0; |
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291 vinfo->vmode=FB_VMODE_NONINTERLACED; |
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292 |
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293 /* Parse misc options */ |
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294 do { |
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295 if (read_fbmodes_line(f, line, sizeof(line))==0) |
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296 return 0; |
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297 |
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298 if (SDL_strncmp(line,"hsync",5)==0) { |
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299 SDL_sscanf(line,"hsync %s",option); |
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300 if (SDL_strncmp(option,"high",4)==0) |
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301 vinfo->sync |= FB_SYNC_HOR_HIGH_ACT; |
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302 } |
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303 else if (SDL_strncmp(line,"vsync",5)==0) { |
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304 SDL_sscanf(line,"vsync %s",option); |
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305 if (SDL_strncmp(option,"high",4)==0) |
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306 vinfo->sync |= FB_SYNC_VERT_HIGH_ACT; |
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307 } |
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308 else if (SDL_strncmp(line,"csync",5)==0) { |
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309 SDL_sscanf(line,"csync %s",option); |
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310 if (SDL_strncmp(option,"high",4)==0) |
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311 vinfo->sync |= FB_SYNC_COMP_HIGH_ACT; |
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312 } |
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313 else if (SDL_strncmp(line,"extsync",5)==0) { |
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314 SDL_sscanf(line,"extsync %s",option); |
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315 if (SDL_strncmp(option,"true",4)==0) |
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316 vinfo->sync |= FB_SYNC_EXT; |
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317 } |
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318 else if (SDL_strncmp(line,"laced",5)==0) { |
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319 SDL_sscanf(line,"laced %s",option); |
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320 if (SDL_strncmp(option,"true",4)==0) |
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321 vinfo->vmode |= FB_VMODE_INTERLACED; |
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322 } |
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323 else if (SDL_strncmp(line,"double",6)==0) { |
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324 SDL_sscanf(line,"double %s",option); |
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325 if (SDL_strncmp(option,"true",4)==0) |
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326 vinfo->vmode |= FB_VMODE_DOUBLE; |
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327 } |
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328 } |
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329 while(SDL_strncmp(line,"endmode",7)!=0); |
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330 |
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331 return 1; |
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332 } |
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333 |
| 0 | 334 static int FB_CheckMode(_THIS, struct fb_var_screeninfo *vinfo, |
| 335 int index, unsigned int *w, unsigned int *h) | |
| 336 { | |
| 337 int mode_okay; | |
| 338 | |
| 339 mode_okay = 0; | |
| 340 vinfo->bits_per_pixel = (index+1)*8; | |
| 341 vinfo->xres = *w; | |
| 342 vinfo->xres_virtual = *w; | |
| 343 vinfo->yres = *h; | |
| 344 vinfo->yres_virtual = *h; | |
| 345 vinfo->activate = FB_ACTIVATE_TEST; | |
| 346 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, vinfo) == 0 ) { | |
| 347 #ifdef FBCON_DEBUG | |
| 348 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); | |
| 349 #endif | |
| 350 if ( (((vinfo->bits_per_pixel+7)/8)-1) == index ) { | |
| 351 *w = vinfo->xres; | |
| 352 *h = vinfo->yres; | |
| 353 mode_okay = 1; | |
| 354 } | |
| 355 } | |
| 356 return mode_okay; | |
| 357 } | |
| 358 | |
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359 static int FB_AddMode(_THIS, int index, unsigned int w, unsigned int h, int check_timings) |
| 0 | 360 { |
| 361 SDL_Rect *mode; | |
| 362 int i; | |
| 363 int next_mode; | |
| 364 | |
| 365 /* Check to see if we already have this mode */ | |
| 366 if ( SDL_nummodes[index] > 0 ) { | |
| 367 mode = SDL_modelist[index][SDL_nummodes[index]-1]; | |
| 368 if ( (mode->w == w) && (mode->h == h) ) { | |
| 369 #ifdef FBCON_DEBUG | |
| 370 fprintf(stderr, "We already have mode %dx%d at %d bytes per pixel\n", w, h, index+1); | |
| 371 #endif | |
| 372 return(0); | |
| 373 } | |
| 374 } | |
| 375 | |
| 376 /* Only allow a mode if we have a valid timing for it */ | |
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377 if ( check_timings ) { |
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378 int found_timing = 0; |
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379 for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { |
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380 if ( (w == vesa_timings[i].xres) && |
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381 (h == vesa_timings[i].yres) && vesa_timings[i].pixclock ) { |
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382 found_timing = 1; |
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383 break; |
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384 } |
| 0 | 385 } |
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386 if ( !found_timing ) { |
| 0 | 387 #ifdef FBCON_DEBUG |
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388 fprintf(stderr, "No valid timing line for mode %dx%d\n", w, h); |
| 0 | 389 #endif |
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390 return(0); |
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391 } |
| 0 | 392 } |
| 393 | |
| 394 /* Set up the new video mode rectangle */ | |
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395 mode = (SDL_Rect *)SDL_malloc(sizeof *mode); |
| 0 | 396 if ( mode == NULL ) { |
| 397 SDL_OutOfMemory(); | |
| 398 return(-1); | |
| 399 } | |
| 400 mode->x = 0; | |
| 401 mode->y = 0; | |
| 402 mode->w = w; | |
| 403 mode->h = h; | |
| 404 #ifdef FBCON_DEBUG | |
| 405 fprintf(stderr, "Adding mode %dx%d at %d bytes per pixel\n", w, h, index+1); | |
| 406 #endif | |
| 407 | |
| 408 /* Allocate the new list of modes, and fill in the new mode */ | |
| 409 next_mode = SDL_nummodes[index]; | |
| 410 SDL_modelist[index] = (SDL_Rect **) | |
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411 SDL_realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *)); |
| 0 | 412 if ( SDL_modelist[index] == NULL ) { |
| 413 SDL_OutOfMemory(); | |
| 414 SDL_nummodes[index] = 0; | |
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415 SDL_free(mode); |
| 0 | 416 return(-1); |
| 417 } | |
| 418 SDL_modelist[index][next_mode] = mode; | |
| 419 SDL_modelist[index][next_mode+1] = NULL; | |
| 420 SDL_nummodes[index]++; | |
| 421 | |
| 422 return(0); | |
| 423 } | |
| 424 | |
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425 static int cmpmodes(const void *va, const void *vb) |
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426 { |
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427 const SDL_Rect *a = *(const SDL_Rect**)va; |
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428 const SDL_Rect *b = *(const SDL_Rect**)vb; |
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429 if ( a->h == b->h ) |
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430 return b->w - a->w; |
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431 else |
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432 return b->h - a->h; |
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433 } |
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434 |
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435 static int FB_SortModes(_THIS) |
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436 { |
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437 int i; |
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438 for ( i=0; i<NUM_MODELISTS; ++i ) { |
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439 if ( SDL_nummodes[i] > 0 ) { |
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440 SDL_qsort(SDL_modelist[i], SDL_nummodes[i], sizeof *SDL_modelist[i], cmpmodes); |
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441 } |
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442 } |
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443 } |
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444 |
| 0 | 445 static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat) |
| 446 { | |
| 447 struct fb_fix_screeninfo finfo; | |
| 448 struct fb_var_screeninfo vinfo; | |
| 449 int i, j; | |
| 450 int current_index; | |
| 451 unsigned int current_w; | |
| 452 unsigned int current_h; | |
| 453 const char *SDL_fbdev; | |
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454 FILE *modesdb; |
| 0 | 455 |
| 456 /* Initialize the library */ | |
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457 SDL_fbdev = SDL_getenv("SDL_FBDEV"); |
| 0 | 458 if ( SDL_fbdev == NULL ) { |
| 459 SDL_fbdev = "/dev/fb0"; | |
| 460 } | |
| 461 console_fd = open(SDL_fbdev, O_RDWR, 0); | |
| 462 if ( console_fd < 0 ) { | |
| 463 SDL_SetError("Unable to open %s", SDL_fbdev); | |
| 464 return(-1); | |
| 465 } | |
| 466 | |
| 467 #ifndef DISABLE_THREADS | |
| 468 /* Create the hardware surface lock mutex */ | |
| 469 hw_lock = SDL_CreateMutex(); | |
| 470 if ( hw_lock == NULL ) { | |
| 471 SDL_SetError("Unable to create lock mutex"); | |
| 472 FB_VideoQuit(this); | |
| 473 return(-1); | |
| 474 } | |
| 475 #endif | |
| 476 | |
| 477 /* Get the type of video hardware */ | |
| 478 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 479 SDL_SetError("Couldn't get console hardware info"); | |
| 480 FB_VideoQuit(this); | |
| 481 return(-1); | |
| 482 } | |
| 483 switch (finfo.type) { | |
| 484 case FB_TYPE_PACKED_PIXELS: | |
| 485 /* Supported, no worries.. */ | |
| 486 break; | |
| 487 #ifdef VGA16_FBCON_SUPPORT | |
| 488 case FB_TYPE_VGA_PLANES: | |
| 489 /* VGA16 is supported, but that's it */ | |
| 490 if ( finfo.type_aux == FB_AUX_VGA_PLANES_VGA4 ) { | |
| 491 if ( ioperm(0x3b4, 0x3df - 0x3b4 + 1, 1) < 0 ) { | |
| 492 SDL_SetError("No I/O port permissions"); | |
| 493 FB_VideoQuit(this); | |
| 494 return(-1); | |
| 495 } | |
| 496 this->SetVideoMode = FB_SetVGA16Mode; | |
| 497 break; | |
| 498 } | |
| 499 /* Fall through to unsupported case */ | |
| 500 #endif /* VGA16_FBCON_SUPPORT */ | |
| 501 default: | |
| 502 SDL_SetError("Unsupported console hardware"); | |
| 503 FB_VideoQuit(this); | |
| 504 return(-1); | |
| 505 } | |
| 506 switch (finfo.visual) { | |
| 507 case FB_VISUAL_TRUECOLOR: | |
| 508 case FB_VISUAL_PSEUDOCOLOR: | |
| 509 case FB_VISUAL_STATIC_PSEUDOCOLOR: | |
| 510 case FB_VISUAL_DIRECTCOLOR: | |
| 511 break; | |
| 512 default: | |
| 513 SDL_SetError("Unsupported console hardware"); | |
| 514 FB_VideoQuit(this); | |
| 515 return(-1); | |
| 516 } | |
| 517 | |
| 518 /* Check if the user wants to disable hardware acceleration */ | |
| 519 { const char *fb_accel; | |
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520 fb_accel = SDL_getenv("SDL_FBACCEL"); |
| 0 | 521 if ( fb_accel ) { |
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522 finfo.accel = SDL_atoi(fb_accel); |
| 0 | 523 } |
| 524 } | |
| 525 | |
| 526 /* Memory map the device, compensating for buggy PPC mmap() */ | |
| 527 mapped_offset = (((long)finfo.smem_start) - | |
| 528 (((long)finfo.smem_start)&~(PAGE_SIZE-1))); | |
| 529 mapped_memlen = finfo.smem_len+mapped_offset; | |
| 530 mapped_mem = mmap(NULL, mapped_memlen, | |
| 531 PROT_READ|PROT_WRITE, MAP_SHARED, console_fd, 0); | |
| 532 if ( mapped_mem == (char *)-1 ) { | |
| 533 SDL_SetError("Unable to memory map the video hardware"); | |
| 534 mapped_mem = NULL; | |
| 535 FB_VideoQuit(this); | |
| 536 return(-1); | |
| 537 } | |
| 538 | |
| 539 /* Determine the current screen depth */ | |
| 540 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 541 SDL_SetError("Couldn't get console pixel format"); | |
| 542 FB_VideoQuit(this); | |
| 543 return(-1); | |
| 544 } | |
| 545 vformat->BitsPerPixel = vinfo.bits_per_pixel; | |
| 546 if ( vformat->BitsPerPixel < 8 ) { | |
| 547 /* Assuming VGA16, we handle this via a shadow framebuffer */ | |
| 548 vformat->BitsPerPixel = 8; | |
| 549 } | |
| 550 for ( i=0; i<vinfo.red.length; ++i ) { | |
| 551 vformat->Rmask <<= 1; | |
| 552 vformat->Rmask |= (0x00000001<<vinfo.red.offset); | |
| 553 } | |
| 554 for ( i=0; i<vinfo.green.length; ++i ) { | |
| 555 vformat->Gmask <<= 1; | |
| 556 vformat->Gmask |= (0x00000001<<vinfo.green.offset); | |
| 557 } | |
| 558 for ( i=0; i<vinfo.blue.length; ++i ) { | |
| 559 vformat->Bmask <<= 1; | |
| 560 vformat->Bmask |= (0x00000001<<vinfo.blue.offset); | |
| 561 } | |
| 562 saved_vinfo = vinfo; | |
| 563 | |
| 564 /* Save hardware palette, if needed */ | |
| 565 FB_SavePalette(this, &finfo, &vinfo); | |
| 566 | |
| 567 /* If the I/O registers are available, memory map them so we | |
| 568 can take advantage of any supported hardware acceleration. | |
| 569 */ | |
| 570 vinfo.accel_flags = 0; /* Temporarily reserve registers */ | |
| 571 ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo); | |
| 572 if ( finfo.accel && finfo.mmio_len ) { | |
| 573 mapped_iolen = finfo.mmio_len; | |
| 574 mapped_io = mmap(NULL, mapped_iolen, PROT_READ|PROT_WRITE, | |
| 575 MAP_SHARED, console_fd, mapped_memlen); | |
| 576 if ( mapped_io == (char *)-1 ) { | |
| 577 /* Hmm, failed to memory map I/O registers */ | |
| 578 mapped_io = NULL; | |
| 579 } | |
| 580 } | |
| 581 | |
| 582 /* Query for the list of available video modes */ | |
| 583 current_w = vinfo.xres; | |
| 584 current_h = vinfo.yres; | |
| 585 current_index = ((vinfo.bits_per_pixel+7)/8)-1; | |
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586 modesdb = fopen(FB_MODES_DB, "r"); |
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587 for ( i=0; i<NUM_MODELISTS; ++i ) { |
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588 SDL_nummodes[i] = 0; |
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589 SDL_modelist[i] = NULL; |
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590 } |
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591 if ( SDL_getenv("SDL_FB_BROKEN_MODES") != NULL ) { |
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592 FB_AddMode(this, current_index, current_w, current_h, 0); |
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593 } else if(modesdb) { |
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594 while ( read_fbmodes_mode(modesdb, &vinfo) ) { |
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595 for ( i=0; i<NUM_MODELISTS; ++i ) { |
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596 unsigned int w, h; |
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597 |
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598 /* See if we are querying for the current mode */ |
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599 w = vinfo.xres; |
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600 h = vinfo.yres; |
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601 if ( i == current_index ) { |
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602 if ( (current_w > w) || (current_h > h) ) { |
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603 /* Only check once */ |
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604 FB_AddMode(this, i, current_w, current_h, 0); |
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605 current_index = -1; |
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606 } |
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607 } |
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608 if ( FB_CheckMode(this, &vinfo, i, &w, &h) ) { |
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609 FB_AddMode(this, i, w, h, 0); |
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610 } |
|
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611 } |
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612 } |
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613 fclose(modesdb); |
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614 FB_SortModes(this); |
|
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615 } else { |
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616 for ( i=0; i<NUM_MODELISTS; ++i ) { |
|
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617 for ( j=0; j<(sizeof(checkres)/sizeof(checkres[0])); ++j ) { |
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618 unsigned int w, h; |
| 0 | 619 |
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620 /* See if we are querying for the current mode */ |
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621 w = checkres[j].w; |
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622 h = checkres[j].h; |
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623 if ( i == current_index ) { |
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624 if ( (current_w > w) || (current_h > h) ) { |
|
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625 /* Only check once */ |
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Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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626 FB_AddMode(this, i, current_w, current_h, 0); |
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Date: Mon, 12 Jul 2004 14:17:47 -0500
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diff
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|
627 current_index = -1; |
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5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
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parents:
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diff
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|
628 } |
| 0 | 629 } |
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941
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Date: Mon, 12 Jul 2004 14:17:47 -0500
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630 if ( FB_CheckMode(this, &vinfo, i, &w, &h) ) { |
|
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631 FB_AddMode(this, i, w, h, 1); |
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Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
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632 } |
| 0 | 633 } |
| 634 } | |
| 635 } | |
| 636 | |
| 637 /* Fill in our hardware acceleration capabilities */ | |
| 638 this->info.wm_available = 0; | |
| 639 this->info.hw_available = 1; | |
| 640 this->info.video_mem = finfo.smem_len/1024; | |
| 641 if ( mapped_io ) { | |
| 642 switch (finfo.accel) { | |
| 643 case FB_ACCEL_MATROX_MGA2064W: | |
| 644 case FB_ACCEL_MATROX_MGA1064SG: | |
| 645 case FB_ACCEL_MATROX_MGA2164W: | |
| 646 case FB_ACCEL_MATROX_MGA2164W_AGP: | |
| 647 case FB_ACCEL_MATROX_MGAG100: | |
| 648 /*case FB_ACCEL_MATROX_MGAG200: G200 acceleration broken! */ | |
| 649 case FB_ACCEL_MATROX_MGAG400: | |
| 650 #ifdef FBACCEL_DEBUG | |
| 651 printf("Matrox hardware accelerator!\n"); | |
| 652 #endif | |
| 653 FB_MatroxAccel(this, finfo.accel); | |
| 654 break; | |
| 655 case FB_ACCEL_3DFX_BANSHEE: | |
| 656 #ifdef FBACCEL_DEBUG | |
| 657 printf("3DFX hardware accelerator!\n"); | |
| 658 #endif | |
| 659 FB_3DfxAccel(this, finfo.accel); | |
| 660 break; | |
|
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Added support for hardware accelerated NVidia driver on framebuffer console
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661 case FB_ACCEL_NV3: |
|
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662 case FB_ACCEL_NV4: |
|
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Added support for hardware accelerated NVidia driver on framebuffer console
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663 #ifdef FBACCEL_DEBUG |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
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664 printf("NVidia hardware accelerator!\n"); |
|
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Added support for hardware accelerated NVidia driver on framebuffer console
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665 #endif |
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Added support for hardware accelerated NVidia driver on framebuffer console
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666 FB_RivaAccel(this, finfo.accel); |
|
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667 break; |
| 0 | 668 default: |
| 669 #ifdef FBACCEL_DEBUG | |
| 670 printf("Unknown hardware accelerator.\n"); | |
| 671 #endif | |
| 672 break; | |
| 673 } | |
| 674 } | |
| 675 | |
| 676 /* Enable mouse and keyboard support */ | |
| 677 if ( FB_OpenKeyboard(this) < 0 ) { | |
| 678 FB_VideoQuit(this); | |
| 679 return(-1); | |
| 680 } | |
| 681 if ( FB_OpenMouse(this) < 0 ) { | |
| 682 const char *sdl_nomouse; | |
| 683 | |
|
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684 sdl_nomouse = SDL_getenv("SDL_NOMOUSE"); |
| 0 | 685 if ( ! sdl_nomouse ) { |
| 686 SDL_SetError("Unable to open mouse"); | |
| 687 FB_VideoQuit(this); | |
| 688 return(-1); | |
| 689 } | |
| 690 } | |
| 691 | |
| 692 /* We're done! */ | |
| 693 return(0); | |
| 694 } | |
| 695 | |
| 696 static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) | |
| 697 { | |
| 698 return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]); | |
| 699 } | |
| 700 | |
| 701 /* Various screen update functions available */ | |
| 702 static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); | |
| 703 #ifdef VGA16_FBCON_SUPPORT | |
| 704 static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects); | |
| 705 #endif | |
| 706 | |
| 707 #ifdef FBCON_DEBUG | |
| 708 static void print_vinfo(struct fb_var_screeninfo *vinfo) | |
| 709 { | |
| 710 fprintf(stderr, "Printing vinfo:\n"); | |
| 711 fprintf(stderr, "\txres: %d\n", vinfo->xres); | |
| 712 fprintf(stderr, "\tyres: %d\n", vinfo->yres); | |
| 713 fprintf(stderr, "\txres_virtual: %d\n", vinfo->xres_virtual); | |
| 714 fprintf(stderr, "\tyres_virtual: %d\n", vinfo->yres_virtual); | |
| 715 fprintf(stderr, "\txoffset: %d\n", vinfo->xoffset); | |
| 716 fprintf(stderr, "\tyoffset: %d\n", vinfo->yoffset); | |
| 717 fprintf(stderr, "\tbits_per_pixel: %d\n", vinfo->bits_per_pixel); | |
| 718 fprintf(stderr, "\tgrayscale: %d\n", vinfo->grayscale); | |
| 719 fprintf(stderr, "\tnonstd: %d\n", vinfo->nonstd); | |
| 720 fprintf(stderr, "\tactivate: %d\n", vinfo->activate); | |
| 721 fprintf(stderr, "\theight: %d\n", vinfo->height); | |
| 722 fprintf(stderr, "\twidth: %d\n", vinfo->width); | |
| 723 fprintf(stderr, "\taccel_flags: %d\n", vinfo->accel_flags); | |
| 724 fprintf(stderr, "\tpixclock: %d\n", vinfo->pixclock); | |
| 725 fprintf(stderr, "\tleft_margin: %d\n", vinfo->left_margin); | |
| 726 fprintf(stderr, "\tright_margin: %d\n", vinfo->right_margin); | |
| 727 fprintf(stderr, "\tupper_margin: %d\n", vinfo->upper_margin); | |
| 728 fprintf(stderr, "\tlower_margin: %d\n", vinfo->lower_margin); | |
| 729 fprintf(stderr, "\thsync_len: %d\n", vinfo->hsync_len); | |
| 730 fprintf(stderr, "\tvsync_len: %d\n", vinfo->vsync_len); | |
| 731 fprintf(stderr, "\tsync: %d\n", vinfo->sync); | |
| 732 fprintf(stderr, "\tvmode: %d\n", vinfo->vmode); | |
| 733 fprintf(stderr, "\tred: %d/%d\n", vinfo->red.length, vinfo->red.offset); | |
| 734 fprintf(stderr, "\tgreen: %d/%d\n", vinfo->green.length, vinfo->green.offset); | |
| 735 fprintf(stderr, "\tblue: %d/%d\n", vinfo->blue.length, vinfo->blue.offset); | |
| 736 fprintf(stderr, "\talpha: %d/%d\n", vinfo->transp.length, vinfo->transp.offset); | |
| 737 } | |
| 738 static void print_finfo(struct fb_fix_screeninfo *finfo) | |
| 739 { | |
| 740 fprintf(stderr, "Printing finfo:\n"); | |
| 741 fprintf(stderr, "\tsmem_start = %p\n", (char *)finfo->smem_start); | |
| 742 fprintf(stderr, "\tsmem_len = %d\n", finfo->smem_len); | |
| 743 fprintf(stderr, "\ttype = %d\n", finfo->type); | |
| 744 fprintf(stderr, "\ttype_aux = %d\n", finfo->type_aux); | |
| 745 fprintf(stderr, "\tvisual = %d\n", finfo->visual); | |
| 746 fprintf(stderr, "\txpanstep = %d\n", finfo->xpanstep); | |
| 747 fprintf(stderr, "\typanstep = %d\n", finfo->ypanstep); | |
| 748 fprintf(stderr, "\tywrapstep = %d\n", finfo->ywrapstep); | |
| 749 fprintf(stderr, "\tline_length = %d\n", finfo->line_length); | |
| 750 fprintf(stderr, "\tmmio_start = %p\n", (char *)finfo->mmio_start); | |
| 751 fprintf(stderr, "\tmmio_len = %d\n", finfo->mmio_len); | |
| 752 fprintf(stderr, "\taccel = %d\n", finfo->accel); | |
| 753 } | |
| 754 #endif | |
| 755 | |
| 756 static int choose_fbmodes_mode(struct fb_var_screeninfo *vinfo) | |
| 757 { | |
| 758 int matched; | |
|
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Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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759 FILE *modesdb; |
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Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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760 struct fb_var_screeninfo cinfo; |
| 0 | 761 |
| 762 matched = 0; | |
|
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Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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763 modesdb = fopen(FB_MODES_DB, "r"); |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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764 if ( modesdb ) { |
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d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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765 /* Parse the mode definition file */ |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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766 while ( read_fbmodes_mode(modesdb, &cinfo) ) { |
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Oops, actually use the timings in the modes db. :)
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767 if ( (vinfo->xres == cinfo.xres && vinfo->yres == cinfo.yres) && |
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Oops, actually use the timings in the modes db. :)
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768 (!matched || (vinfo->bits_per_pixel == cinfo.bits_per_pixel)) ) { |
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Oops, actually use the timings in the modes db. :)
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769 vinfo->pixclock = cinfo.pixclock; |
|
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Oops, actually use the timings in the modes db. :)
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770 vinfo->left_margin = cinfo.left_margin; |
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Oops, actually use the timings in the modes db. :)
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771 vinfo->right_margin = cinfo.right_margin; |
|
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Oops, actually use the timings in the modes db. :)
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772 vinfo->upper_margin = cinfo.upper_margin; |
|
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Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
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773 vinfo->lower_margin = cinfo.lower_margin; |
|
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Oops, actually use the timings in the modes db. :)
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774 vinfo->hsync_len = cinfo.hsync_len; |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
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775 vinfo->vsync_len = cinfo.vsync_len; |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
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|
776 if ( matched ) { |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
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|
777 break; |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
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|
778 } |
|
1215
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Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
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|
779 matched = 1; |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
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|
780 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
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|
781 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
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|
782 fclose(modesdb); |
| 0 | 783 } |
| 784 return(matched); | |
| 785 } | |
| 786 | |
| 787 static int choose_vesa_mode(struct fb_var_screeninfo *vinfo) | |
| 788 { | |
| 789 int matched; | |
| 790 int i; | |
| 791 | |
| 792 /* Check for VESA timings */ | |
| 793 matched = 0; | |
| 794 for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { | |
| 795 if ( (vinfo->xres == vesa_timings[i].xres) && | |
| 796 (vinfo->yres == vesa_timings[i].yres) ) { | |
| 797 #ifdef FBCON_DEBUG | |
| 798 fprintf(stderr, "Using VESA timings for %dx%d\n", | |
| 799 vinfo->xres, vinfo->yres); | |
| 800 #endif | |
| 801 if ( vesa_timings[i].pixclock ) { | |
| 802 vinfo->pixclock = vesa_timings[i].pixclock; | |
| 803 } | |
| 804 vinfo->left_margin = vesa_timings[i].left; | |
| 805 vinfo->right_margin = vesa_timings[i].right; | |
| 806 vinfo->upper_margin = vesa_timings[i].upper; | |
| 807 vinfo->lower_margin = vesa_timings[i].lower; | |
| 808 vinfo->hsync_len = vesa_timings[i].hslen; | |
| 809 vinfo->vsync_len = vesa_timings[i].vslen; | |
| 810 vinfo->sync = vesa_timings[i].sync; | |
| 811 vinfo->vmode = vesa_timings[i].vmode; | |
| 812 matched = 1; | |
| 813 break; | |
| 814 } | |
| 815 } | |
| 816 return(matched); | |
| 817 } | |
| 818 | |
| 819 #ifdef VGA16_FBCON_SUPPORT | |
| 820 static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, | |
| 821 int width, int height, int bpp, Uint32 flags) | |
| 822 { | |
| 823 struct fb_fix_screeninfo finfo; | |
| 824 struct fb_var_screeninfo vinfo; | |
| 825 | |
| 826 /* Set the terminal into graphics mode */ | |
| 827 if ( FB_EnterGraphicsMode(this) < 0 ) { | |
| 828 return(NULL); | |
| 829 } | |
| 830 | |
| 831 /* Restore the original palette */ | |
| 832 FB_RestorePalette(this); | |
| 833 | |
| 834 /* Set the video mode and get the final screen format */ | |
| 835 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 836 SDL_SetError("Couldn't get console screen info"); | |
| 837 return(NULL); | |
| 838 } | |
| 839 cache_vinfo = vinfo; | |
| 840 #ifdef FBCON_DEBUG | |
| 841 fprintf(stderr, "Printing actual vinfo:\n"); | |
| 842 print_vinfo(&vinfo); | |
| 843 #endif | |
| 844 if ( ! SDL_ReallocFormat(current, bpp, 0, 0, 0, 0) ) { | |
| 845 return(NULL); | |
| 846 } | |
|
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847 current->format->palette->ncolors = 16; |
| 0 | 848 |
| 849 /* Get the fixed information about the console hardware. | |
| 850 This is necessary since finfo.line_length changes. | |
| 851 */ | |
| 852 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 853 SDL_SetError("Couldn't get console hardware info"); | |
| 854 return(NULL); | |
| 855 } | |
| 856 #ifdef FBCON_DEBUG | |
| 857 fprintf(stderr, "Printing actual finfo:\n"); | |
| 858 print_finfo(&finfo); | |
| 859 #endif | |
| 860 | |
| 861 /* Save hardware palette, if needed */ | |
| 862 FB_SavePalette(this, &finfo, &vinfo); | |
| 863 | |
| 864 /* Set up the new mode framebuffer */ | |
| 865 current->flags = SDL_FULLSCREEN; | |
| 866 current->w = vinfo.xres; | |
| 867 current->h = vinfo.yres; | |
| 868 current->pitch = current->w; | |
|
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|
869 current->pixels = SDL_malloc(current->h*current->pitch); |
| 0 | 870 |
| 871 /* Set the update rectangle function */ | |
| 872 this->UpdateRects = FB_VGA16Update; | |
| 873 | |
| 874 /* We're done */ | |
| 875 return(current); | |
| 876 } | |
| 877 #endif /* VGA16_FBCON_SUPPORT */ | |
| 878 | |
| 879 static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, | |
| 880 int width, int height, int bpp, Uint32 flags) | |
| 881 { | |
| 882 struct fb_fix_screeninfo finfo; | |
| 883 struct fb_var_screeninfo vinfo; | |
| 884 int i; | |
| 885 Uint32 Rmask; | |
| 886 Uint32 Gmask; | |
| 887 Uint32 Bmask; | |
| 888 char *surfaces_mem; | |
| 889 int surfaces_len; | |
| 890 | |
| 891 /* Set the terminal into graphics mode */ | |
| 892 if ( FB_EnterGraphicsMode(this) < 0 ) { | |
| 893 return(NULL); | |
| 894 } | |
| 895 | |
| 896 /* Restore the original palette */ | |
| 897 FB_RestorePalette(this); | |
| 898 | |
| 899 /* Set the video mode and get the final screen format */ | |
| 900 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 901 SDL_SetError("Couldn't get console screen info"); | |
| 902 return(NULL); | |
| 903 } | |
| 904 #ifdef FBCON_DEBUG | |
| 905 fprintf(stderr, "Printing original vinfo:\n"); | |
| 906 print_vinfo(&vinfo); | |
| 907 #endif | |
| 908 if ( (vinfo.xres != width) || (vinfo.yres != height) || | |
| 909 (vinfo.bits_per_pixel != bpp) || (flags & SDL_DOUBLEBUF) ) { | |
| 910 vinfo.activate = FB_ACTIVATE_NOW; | |
| 911 vinfo.accel_flags = 0; | |
| 912 vinfo.bits_per_pixel = bpp; | |
| 913 vinfo.xres = width; | |
| 914 vinfo.xres_virtual = width; | |
| 915 vinfo.yres = height; | |
| 916 if ( flags & SDL_DOUBLEBUF ) { | |
| 917 vinfo.yres_virtual = height*2; | |
| 918 } else { | |
| 919 vinfo.yres_virtual = height; | |
| 920 } | |
| 921 vinfo.xoffset = 0; | |
| 922 vinfo.yoffset = 0; | |
| 923 vinfo.red.length = vinfo.red.offset = 0; | |
| 924 vinfo.green.length = vinfo.green.offset = 0; | |
| 925 vinfo.blue.length = vinfo.blue.offset = 0; | |
| 926 vinfo.transp.length = vinfo.transp.offset = 0; | |
| 927 if ( ! choose_fbmodes_mode(&vinfo) ) { | |
| 928 choose_vesa_mode(&vinfo); | |
| 929 } | |
| 930 #ifdef FBCON_DEBUG | |
| 931 fprintf(stderr, "Printing wanted vinfo:\n"); | |
| 932 print_vinfo(&vinfo); | |
| 933 #endif | |
| 934 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { | |
| 935 vinfo.yres_virtual = height; | |
| 936 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { | |
| 937 SDL_SetError("Couldn't set console screen info"); | |
| 938 return(NULL); | |
| 939 } | |
| 940 } | |
|
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|
941 } else { |
|
63ec24e0575f
Merged DGA video surface handling improvements, unified locking code.
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parents:
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diff
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|
942 int maxheight; |
|
63ec24e0575f
Merged DGA video surface handling improvements, unified locking code.
Sam Lantinga <slouken@lokigames.com>
parents:
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diff
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|
943 |
|
63ec24e0575f
Merged DGA video surface handling improvements, unified locking code.
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parents:
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diff
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|
944 /* Figure out how much video memory is available */ |
|
63ec24e0575f
Merged DGA video surface handling improvements, unified locking code.
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
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945 if ( flags & SDL_DOUBLEBUF ) { |
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946 maxheight = height*2; |
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947 } else { |
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948 maxheight = height; |
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949 } |
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950 if ( vinfo.yres_virtual > maxheight ) { |
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951 vinfo.yres_virtual = maxheight; |
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952 } |
| 0 | 953 } |
| 954 cache_vinfo = vinfo; | |
| 955 #ifdef FBCON_DEBUG | |
| 956 fprintf(stderr, "Printing actual vinfo:\n"); | |
| 957 print_vinfo(&vinfo); | |
| 958 #endif | |
| 959 Rmask = 0; | |
| 960 for ( i=0; i<vinfo.red.length; ++i ) { | |
| 961 Rmask <<= 1; | |
| 962 Rmask |= (0x00000001<<vinfo.red.offset); | |
| 963 } | |
| 964 Gmask = 0; | |
| 965 for ( i=0; i<vinfo.green.length; ++i ) { | |
| 966 Gmask <<= 1; | |
| 967 Gmask |= (0x00000001<<vinfo.green.offset); | |
| 968 } | |
| 969 Bmask = 0; | |
| 970 for ( i=0; i<vinfo.blue.length; ++i ) { | |
| 971 Bmask <<= 1; | |
| 972 Bmask |= (0x00000001<<vinfo.blue.offset); | |
| 973 } | |
| 974 if ( ! SDL_ReallocFormat(current, vinfo.bits_per_pixel, | |
| 975 Rmask, Gmask, Bmask, 0) ) { | |
| 976 return(NULL); | |
| 977 } | |
| 978 | |
| 979 /* Get the fixed information about the console hardware. | |
| 980 This is necessary since finfo.line_length changes. | |
| 981 */ | |
| 982 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 983 SDL_SetError("Couldn't get console hardware info"); | |
| 984 return(NULL); | |
| 985 } | |
| 986 | |
| 987 /* Save hardware palette, if needed */ | |
| 988 FB_SavePalette(this, &finfo, &vinfo); | |
| 989 | |
| 990 /* Set up the new mode framebuffer */ | |
| 991 current->flags = (SDL_FULLSCREEN|SDL_HWSURFACE); | |
| 992 current->w = vinfo.xres; | |
| 993 current->h = vinfo.yres; | |
| 994 current->pitch = finfo.line_length; | |
| 995 current->pixels = mapped_mem+mapped_offset; | |
| 996 | |
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997 /* Set up the information for hardware surfaces */ |
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998 surfaces_mem = (char *)current->pixels + |
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999 vinfo.yres_virtual*current->pitch; |
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1000 surfaces_len = (mapped_memlen-(surfaces_mem-mapped_mem)); |
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1001 FB_FreeHWSurfaces(this); |
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1002 FB_InitHWSurfaces(this, current, surfaces_mem, surfaces_len); |
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1003 |
| 0 | 1004 /* Let the application know we have a hardware palette */ |
| 1005 switch (finfo.visual) { | |
| 1006 case FB_VISUAL_PSEUDOCOLOR: | |
| 1007 current->flags |= SDL_HWPALETTE; | |
| 1008 break; | |
| 1009 default: | |
| 1010 break; | |
| 1011 } | |
| 1012 | |
| 1013 /* Update for double-buffering, if we can */ | |
| 1014 if ( flags & SDL_DOUBLEBUF ) { | |
| 1015 if ( vinfo.yres_virtual == (height*2) ) { | |
| 1016 current->flags |= SDL_DOUBLEBUF; | |
| 1017 flip_page = 0; | |
| 1018 flip_address[0] = (char *)current->pixels; | |
| 1019 flip_address[1] = (char *)current->pixels+ | |
| 1020 current->h*current->pitch; | |
|
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1021 this->screen = current; |
| 0 | 1022 FB_FlipHWSurface(this, current); |
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1023 this->screen = NULL; |
| 0 | 1024 } |
| 1025 } | |
| 1026 | |
| 1027 /* Set the update rectangle function */ | |
| 1028 this->UpdateRects = FB_DirectUpdate; | |
| 1029 | |
| 1030 /* We're done */ | |
| 1031 return(current); | |
| 1032 } | |
| 1033 | |
| 1034 #ifdef FBCON_DEBUG | |
| 1035 void FB_DumpHWSurfaces(_THIS) | |
| 1036 { | |
| 1037 vidmem_bucket *bucket; | |
| 1038 | |
| 1039 printf("Memory left: %d (%d total)\n", surfaces_memleft, surfaces_memtotal); | |
| 1040 printf("\n"); | |
| 1041 printf(" Base Size\n"); | |
| 1042 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 1043 printf("Bucket: %p, %d (%s)\n", bucket->base, bucket->size, bucket->used ? "used" : "free"); | |
| 1044 if ( bucket->prev ) { | |
| 1045 if ( bucket->base != bucket->prev->base+bucket->prev->size ) { | |
| 1046 printf("Warning, corrupt bucket list! (prev)\n"); | |
| 1047 } | |
| 1048 } else { | |
| 1049 if ( bucket != &surfaces ) { | |
| 1050 printf("Warning, corrupt bucket list! (!prev)\n"); | |
| 1051 } | |
| 1052 } | |
| 1053 if ( bucket->next ) { | |
| 1054 if ( bucket->next->base != bucket->base+bucket->size ) { | |
| 1055 printf("Warning, corrupt bucket list! (next)\n"); | |
| 1056 } | |
| 1057 } | |
| 1058 } | |
| 1059 printf("\n"); | |
| 1060 } | |
| 1061 #endif | |
| 1062 | |
|
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1063 static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size) |
| 0 | 1064 { |
|
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1065 vidmem_bucket *bucket; |
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1066 |
| 0 | 1067 surfaces_memtotal = size; |
| 1068 surfaces_memleft = size; | |
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1069 |
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1070 if ( surfaces_memleft > 0 ) { |
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1071 bucket = (vidmem_bucket *)SDL_malloc(sizeof(*bucket)); |
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1072 if ( bucket == NULL ) { |
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1073 SDL_OutOfMemory(); |
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1074 return(-1); |
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1075 } |
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1076 bucket->prev = &surfaces; |
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1077 bucket->used = 0; |
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1078 bucket->dirty = 0; |
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1079 bucket->base = base; |
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1080 bucket->size = size; |
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1081 bucket->next = NULL; |
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1082 } else { |
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1083 bucket = NULL; |
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1084 } |
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1085 |
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1086 surfaces.prev = NULL; |
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1087 surfaces.used = 1; |
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1088 surfaces.dirty = 0; |
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1089 surfaces.base = screen->pixels; |
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1090 surfaces.size = (unsigned int)((long)base - (long)surfaces.base); |
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1091 surfaces.next = bucket; |
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1092 screen->hwdata = (struct private_hwdata *)&surfaces; |
| 0 | 1093 return(0); |
| 1094 } | |
| 1095 static void FB_FreeHWSurfaces(_THIS) | |
| 1096 { | |
| 1097 vidmem_bucket *bucket, *freeable; | |
| 1098 | |
| 1099 bucket = surfaces.next; | |
| 1100 while ( bucket ) { | |
| 1101 freeable = bucket; | |
| 1102 bucket = bucket->next; | |
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1103 SDL_free(freeable); |
| 0 | 1104 } |
| 1105 surfaces.next = NULL; | |
| 1106 } | |
| 1107 | |
| 1108 static int FB_AllocHWSurface(_THIS, SDL_Surface *surface) | |
| 1109 { | |
| 1110 vidmem_bucket *bucket; | |
| 1111 int size; | |
| 1112 int extra; | |
| 1113 | |
| 1114 /* Temporarily, we only allow surfaces the same width as display. | |
| 1115 Some blitters require the pitch between two hardware surfaces | |
| 1116 to be the same. Others have interesting alignment restrictions. | |
| 1117 Until someone who knows these details looks at the code... | |
| 1118 */ | |
| 1119 if ( surface->pitch > SDL_VideoSurface->pitch ) { | |
| 1120 SDL_SetError("Surface requested wider than screen"); | |
| 1121 return(-1); | |
| 1122 } | |
| 1123 surface->pitch = SDL_VideoSurface->pitch; | |
| 1124 size = surface->h * surface->pitch; | |
| 1125 #ifdef FBCON_DEBUG | |
| 1126 fprintf(stderr, "Allocating bucket of %d bytes\n", size); | |
| 1127 #endif | |
| 1128 | |
| 1129 /* Quick check for available mem */ | |
| 1130 if ( size > surfaces_memleft ) { | |
| 1131 SDL_SetError("Not enough video memory"); | |
| 1132 return(-1); | |
| 1133 } | |
| 1134 | |
| 1135 /* Search for an empty bucket big enough */ | |
| 1136 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 1137 if ( ! bucket->used && (size <= bucket->size) ) { | |
| 1138 break; | |
| 1139 } | |
| 1140 } | |
| 1141 if ( bucket == NULL ) { | |
| 1142 SDL_SetError("Video memory too fragmented"); | |
| 1143 return(-1); | |
| 1144 } | |
| 1145 | |
| 1146 /* Create a new bucket for left-over memory */ | |
| 1147 extra = (bucket->size - size); | |
| 1148 if ( extra ) { | |
| 1149 vidmem_bucket *newbucket; | |
| 1150 | |
| 1151 #ifdef FBCON_DEBUG | |
| 1152 fprintf(stderr, "Adding new free bucket of %d bytes\n", extra); | |
| 1153 #endif | |
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1154 newbucket = (vidmem_bucket *)SDL_malloc(sizeof(*newbucket)); |
| 0 | 1155 if ( newbucket == NULL ) { |
| 1156 SDL_OutOfMemory(); | |
| 1157 return(-1); | |
| 1158 } | |
| 1159 newbucket->prev = bucket; | |
| 1160 newbucket->used = 0; | |
| 1161 newbucket->base = bucket->base+size; | |
| 1162 newbucket->size = extra; | |
| 1163 newbucket->next = bucket->next; | |
| 1164 if ( bucket->next ) { | |
| 1165 bucket->next->prev = newbucket; | |
| 1166 } | |
| 1167 bucket->next = newbucket; | |
| 1168 } | |
| 1169 | |
| 1170 /* Set the current bucket values and return it! */ | |
| 1171 bucket->used = 1; | |
| 1172 bucket->size = size; | |
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1173 bucket->dirty = 0; |
| 0 | 1174 #ifdef FBCON_DEBUG |
| 1175 fprintf(stderr, "Allocated %d bytes at %p\n", bucket->size, bucket->base); | |
| 1176 #endif | |
| 1177 surfaces_memleft -= size; | |
| 1178 surface->flags |= SDL_HWSURFACE; | |
| 1179 surface->pixels = bucket->base; | |
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1180 surface->hwdata = (struct private_hwdata *)bucket; |
| 0 | 1181 return(0); |
| 1182 } | |
| 1183 static void FB_FreeHWSurface(_THIS, SDL_Surface *surface) | |
| 1184 { | |
| 1185 vidmem_bucket *bucket, *freeable; | |
| 1186 | |
| 1187 /* Look for the bucket in the current list */ | |
| 1188 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
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1189 if ( bucket == (vidmem_bucket *)surface->hwdata ) { |
| 0 | 1190 break; |
| 1191 } | |
| 1192 } | |
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1193 if ( bucket && bucket->used ) { |
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1194 /* Add the memory back to the total */ |
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1195 #ifdef DGA_DEBUG |
| 0 | 1196 printf("Freeing bucket of %d bytes\n", bucket->size); |
| 1197 #endif | |
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1198 surfaces_memleft += bucket->size; |
| 0 | 1199 |
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1200 /* Can we merge the space with surrounding buckets? */ |
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1201 bucket->used = 0; |
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1202 if ( bucket->next && ! bucket->next->used ) { |
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1203 #ifdef DGA_DEBUG |
| 0 | 1204 printf("Merging with next bucket, for %d total bytes\n", bucket->size+bucket->next->size); |
| 1205 #endif | |
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1206 freeable = bucket->next; |
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1207 bucket->size += bucket->next->size; |
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1208 bucket->next = bucket->next->next; |
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1209 if ( bucket->next ) { |
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1210 bucket->next->prev = bucket; |
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1211 } |
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1212 SDL_free(freeable); |
| 0 | 1213 } |
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1214 if ( bucket->prev && ! bucket->prev->used ) { |
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1215 #ifdef DGA_DEBUG |
| 0 | 1216 printf("Merging with previous bucket, for %d total bytes\n", bucket->prev->size+bucket->size); |
| 1217 #endif | |
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1218 freeable = bucket; |
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1219 bucket->prev->size += bucket->size; |
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1220 bucket->prev->next = bucket->next; |
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1221 if ( bucket->next ) { |
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1222 bucket->next->prev = bucket->prev; |
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1223 } |
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1224 SDL_free(freeable); |
| 0 | 1225 } |
| 1226 } | |
| 1227 surface->pixels = NULL; | |
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1228 surface->hwdata = NULL; |
| 0 | 1229 } |
| 1230 static int FB_LockHWSurface(_THIS, SDL_Surface *surface) | |
| 1231 { | |
|
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1232 if ( surface == this->screen ) { |
| 0 | 1233 SDL_mutexP(hw_lock); |
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1234 if ( FB_IsSurfaceBusy(surface) ) { |
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1235 FB_WaitBusySurfaces(this); |
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1236 } |
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1237 } else { |
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1238 if ( FB_IsSurfaceBusy(surface) ) { |
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1239 FB_WaitBusySurfaces(this); |
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1240 } |
| 0 | 1241 } |
| 1242 return(0); | |
| 1243 } | |
| 1244 static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
| 1245 { | |
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1246 if ( surface == this->screen ) { |
| 0 | 1247 SDL_mutexV(hw_lock); |
| 1248 } | |
| 1249 } | |
| 1250 | |
| 1251 static void FB_WaitVBL(_THIS) | |
| 1252 { | |
| 1253 #ifdef FBIOWAITRETRACE /* Heheh, this didn't make it into the main kernel */ | |
| 1254 ioctl(console_fd, FBIOWAITRETRACE, 0); | |
| 1255 #endif | |
| 1256 return; | |
| 1257 } | |
| 1258 | |
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1259 static void FB_WaitIdle(_THIS) |
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1260 { |
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1261 return; |
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1262 } |
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1263 |
| 0 | 1264 static int FB_FlipHWSurface(_THIS, SDL_Surface *surface) |
| 1265 { | |
| 1266 /* Wait for vertical retrace and then flip display */ | |
| 1267 cache_vinfo.yoffset = flip_page*surface->h; | |
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1268 if ( FB_IsSurfaceBusy(this->screen) ) { |
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1269 FB_WaitBusySurfaces(this); |
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1270 } |
| 0 | 1271 wait_vbl(this); |
| 1272 if ( ioctl(console_fd, FBIOPAN_DISPLAY, &cache_vinfo) < 0 ) { | |
| 1273 SDL_SetError("ioctl(FBIOPAN_DISPLAY) failed"); | |
| 1274 return(-1); | |
| 1275 } | |
| 1276 flip_page = !flip_page; | |
| 1277 | |
| 1278 surface->pixels = flip_address[flip_page]; | |
| 1279 return(0); | |
| 1280 } | |
| 1281 | |
| 1282 static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) | |
| 1283 { | |
| 1284 /* The application is already updating the visible video memory */ | |
| 1285 return; | |
| 1286 } | |
| 1287 | |
| 1288 #ifdef VGA16_FBCON_SUPPORT | |
| 1289 /* Code adapted with thanks from the XFree86 VGA16 driver! :) */ | |
| 1290 #define writeGr(index, value) \ | |
| 1291 outb(index, 0x3CE); \ | |
| 1292 outb(value, 0x3CF); | |
| 1293 #define writeSeq(index, value) \ | |
| 1294 outb(index, 0x3C4); \ | |
| 1295 outb(value, 0x3C5); | |
| 1296 | |
| 1297 static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects) | |
| 1298 { | |
| 1299 SDL_Surface *screen; | |
| 1300 int width, height, FBPitch, left, i, j, SRCPitch, phase; | |
| 1301 register Uint32 m; | |
| 1302 Uint8 s1, s2, s3, s4; | |
| 1303 Uint32 *src, *srcPtr; | |
| 1304 Uint8 *dst, *dstPtr; | |
| 1305 | |
| 1306 screen = this->screen; | |
| 1307 FBPitch = screen->w >> 3; | |
| 1308 SRCPitch = screen->pitch >> 2; | |
| 1309 | |
| 1310 writeGr(0x03, 0x00); | |
| 1311 writeGr(0x05, 0x00); | |
| 1312 writeGr(0x01, 0x00); | |
| 1313 writeGr(0x08, 0xFF); | |
| 1314 | |
| 1315 while(numrects--) { | |
| 1316 left = rects->x & ~7; | |
| 1317 width = (rects->w + 7) >> 3; | |
| 1318 height = rects->h; | |
| 1319 src = (Uint32*)screen->pixels + (rects->y * SRCPitch) + (left >> 2); | |
| 1320 dst = (Uint8*)mapped_mem + (rects->y * FBPitch) + (left >> 3); | |
| 1321 | |
| 1322 if((phase = (long)dst & 3L)) { | |
| 1323 phase = 4 - phase; | |
| 1324 if(phase > width) phase = width; | |
| 1325 width -= phase; | |
| 1326 } | |
| 1327 | |
| 1328 while(height--) { | |
| 1329 writeSeq(0x02, 1 << 0); | |
| 1330 dstPtr = dst; | |
| 1331 srcPtr = src; | |
| 1332 i = width; | |
| 1333 j = phase; | |
| 1334 while(j--) { | |
| 1335 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1336 *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1337 srcPtr += 2; | |
| 1338 } | |
| 1339 while(i >= 4) { | |
| 1340 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1341 s1 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1342 m = (srcPtr[3] & 0x01010101) | ((srcPtr[2] & 0x01010101) << 4); | |
| 1343 s2 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1344 m = (srcPtr[5] & 0x01010101) | ((srcPtr[4] & 0x01010101) << 4); | |
| 1345 s3 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1346 m = (srcPtr[7] & 0x01010101) | ((srcPtr[6] & 0x01010101) << 4); | |
| 1347 s4 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1348 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1349 srcPtr += 8; | |
| 1350 dstPtr += 4; | |
| 1351 i -= 4; | |
| 1352 } | |
| 1353 while(i--) { | |
| 1354 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1355 *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1356 srcPtr += 2; | |
| 1357 } | |
| 1358 | |
| 1359 writeSeq(0x02, 1 << 1); | |
| 1360 dstPtr = dst; | |
| 1361 srcPtr = src; | |
| 1362 i = width; | |
| 1363 j = phase; | |
| 1364 while(j--) { | |
| 1365 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1366 *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1367 srcPtr += 2; | |
| 1368 } | |
| 1369 while(i >= 4) { | |
| 1370 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1371 s1 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1372 m = (srcPtr[3] & 0x02020202) | ((srcPtr[2] & 0x02020202) << 4); | |
| 1373 s2 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1374 m = (srcPtr[5] & 0x02020202) | ((srcPtr[4] & 0x02020202) << 4); | |
| 1375 s3 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1376 m = (srcPtr[7] & 0x02020202) | ((srcPtr[6] & 0x02020202) << 4); | |
| 1377 s4 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1378 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1379 srcPtr += 8; | |
| 1380 dstPtr += 4; | |
| 1381 i -= 4; | |
| 1382 } | |
| 1383 while(i--) { | |
| 1384 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1385 *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1386 srcPtr += 2; | |
| 1387 } | |
| 1388 | |
| 1389 writeSeq(0x02, 1 << 2); | |
| 1390 dstPtr = dst; | |
| 1391 srcPtr = src; | |
| 1392 i = width; | |
| 1393 j = phase; | |
| 1394 while(j--) { | |
| 1395 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1396 *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1397 srcPtr += 2; | |
| 1398 } | |
| 1399 while(i >= 4) { | |
| 1400 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1401 s1 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1402 m = (srcPtr[3] & 0x04040404) | ((srcPtr[2] & 0x04040404) << 4); | |
| 1403 s2 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1404 m = (srcPtr[5] & 0x04040404) | ((srcPtr[4] & 0x04040404) << 4); | |
| 1405 s3 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1406 m = (srcPtr[7] & 0x04040404) | ((srcPtr[6] & 0x04040404) << 4); | |
| 1407 s4 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1408 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1409 srcPtr += 8; | |
| 1410 dstPtr += 4; | |
| 1411 i -= 4; | |
| 1412 } | |
| 1413 while(i--) { | |
| 1414 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1415 *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1416 srcPtr += 2; | |
| 1417 } | |
| 1418 | |
| 1419 writeSeq(0x02, 1 << 3); | |
| 1420 dstPtr = dst; | |
| 1421 srcPtr = src; | |
| 1422 i = width; | |
| 1423 j = phase; | |
| 1424 while(j--) { | |
| 1425 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1426 *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1427 srcPtr += 2; | |
| 1428 } | |
| 1429 while(i >= 4) { | |
| 1430 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1431 s1 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1432 m = (srcPtr[3] & 0x08080808) | ((srcPtr[2] & 0x08080808) << 4); | |
| 1433 s2 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1434 m = (srcPtr[5] & 0x08080808) | ((srcPtr[4] & 0x08080808) << 4); | |
| 1435 s3 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1436 m = (srcPtr[7] & 0x08080808) | ((srcPtr[6] & 0x08080808) << 4); | |
| 1437 s4 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1438 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1439 srcPtr += 8; | |
| 1440 dstPtr += 4; | |
| 1441 i -= 4; | |
| 1442 } | |
| 1443 while(i--) { | |
| 1444 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1445 *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1446 srcPtr += 2; | |
| 1447 } | |
| 1448 | |
| 1449 dst += FBPitch; | |
| 1450 src += SRCPitch; | |
| 1451 } | |
| 1452 rects++; | |
| 1453 } | |
| 1454 } | |
| 1455 #endif /* VGA16_FBCON_SUPPORT */ | |
| 1456 | |
| 1457 void FB_SavePaletteTo(_THIS, int palette_len, __u16 *area) | |
| 1458 { | |
| 1459 struct fb_cmap cmap; | |
| 1460 | |
| 1461 cmap.start = 0; | |
| 1462 cmap.len = palette_len; | |
| 1463 cmap.red = &area[0*palette_len]; | |
| 1464 cmap.green = &area[1*palette_len]; | |
| 1465 cmap.blue = &area[2*palette_len]; | |
| 1466 cmap.transp = NULL; | |
| 1467 ioctl(console_fd, FBIOGETCMAP, &cmap); | |
| 1468 } | |
| 1469 | |
| 1470 void FB_RestorePaletteFrom(_THIS, int palette_len, __u16 *area) | |
| 1471 { | |
| 1472 struct fb_cmap cmap; | |
| 1473 | |
| 1474 cmap.start = 0; | |
| 1475 cmap.len = palette_len; | |
| 1476 cmap.red = &area[0*palette_len]; | |
| 1477 cmap.green = &area[1*palette_len]; | |
| 1478 cmap.blue = &area[2*palette_len]; | |
| 1479 cmap.transp = NULL; | |
| 1480 ioctl(console_fd, FBIOPUTCMAP, &cmap); | |
| 1481 } | |
| 1482 | |
| 1483 static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, | |
| 1484 struct fb_var_screeninfo *vinfo) | |
| 1485 { | |
| 1486 int i; | |
| 1487 | |
| 1488 /* Save hardware palette, if needed */ | |
| 1489 if ( finfo->visual == FB_VISUAL_PSEUDOCOLOR ) { | |
| 1490 saved_cmaplen = 1<<vinfo->bits_per_pixel; | |
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1491 saved_cmap=(__u16 *)SDL_malloc(3*saved_cmaplen*sizeof(*saved_cmap)); |
| 0 | 1492 if ( saved_cmap != NULL ) { |
| 1493 FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); | |
| 1494 } | |
| 1495 } | |
| 1496 | |
| 1497 /* Added support for FB_VISUAL_DIRECTCOLOR. | |
| 1498 With this mode pixel information is passed through the palette... | |
| 1499 Neat fading and gamma correction effects can be had by simply | |
| 1500 fooling around with the palette instead of changing the pixel | |
| 1501 values themselves... Very neat! | |
| 1502 | |
| 1503 Adam Meyerowitz 1/19/2000 | |
| 1504 ameyerow@optonline.com | |
| 1505 */ | |
| 1506 if ( finfo->visual == FB_VISUAL_DIRECTCOLOR ) { | |
| 1507 __u16 new_entries[3*256]; | |
| 1508 | |
| 1509 /* Save the colormap */ | |
| 1510 saved_cmaplen = 256; | |
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1511 saved_cmap=(__u16 *)SDL_malloc(3*saved_cmaplen*sizeof(*saved_cmap)); |
| 0 | 1512 if ( saved_cmap != NULL ) { |
| 1513 FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); | |
| 1514 } | |
| 1515 | |
| 1516 /* Allocate new identity colormap */ | |
| 1517 for ( i=0; i<256; ++i ) { | |
| 1518 new_entries[(0*256)+i] = | |
| 1519 new_entries[(1*256)+i] = | |
| 1520 new_entries[(2*256)+i] = (i<<8)|i; | |
| 1521 } | |
| 1522 FB_RestorePaletteFrom(this, 256, new_entries); | |
| 1523 } | |
| 1524 } | |
| 1525 | |
| 1526 static void FB_RestorePalette(_THIS) | |
| 1527 { | |
| 1528 /* Restore the original palette */ | |
| 1529 if ( saved_cmap ) { | |
| 1530 FB_RestorePaletteFrom(this, saved_cmaplen, saved_cmap); | |
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1531 SDL_free(saved_cmap); |
| 0 | 1532 saved_cmap = NULL; |
| 1533 } | |
| 1534 } | |
| 1535 | |
| 1536 static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | |
| 1537 { | |
| 1538 int i; | |
| 1539 __u16 r[256]; | |
| 1540 __u16 g[256]; | |
| 1541 __u16 b[256]; | |
| 1542 struct fb_cmap cmap; | |
| 1543 | |
| 1544 /* Set up the colormap */ | |
| 1545 for (i = 0; i < ncolors; i++) { | |
| 1546 r[i] = colors[i].r << 8; | |
| 1547 g[i] = colors[i].g << 8; | |
| 1548 b[i] = colors[i].b << 8; | |
| 1549 } | |
| 1550 cmap.start = firstcolor; | |
| 1551 cmap.len = ncolors; | |
| 1552 cmap.red = r; | |
| 1553 cmap.green = g; | |
| 1554 cmap.blue = b; | |
| 1555 cmap.transp = NULL; | |
| 1556 | |
| 1557 if( (ioctl(console_fd, FBIOPUTCMAP, &cmap) < 0) || | |
| 1558 !(this->screen->flags & SDL_HWPALETTE) ) { | |
| 1559 colors = this->screen->format->palette->colors; | |
| 1560 ncolors = this->screen->format->palette->ncolors; | |
| 1561 cmap.start = 0; | |
| 1562 cmap.len = ncolors; | |
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1563 SDL_memset(r, 0, sizeof(r)); |
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1564 SDL_memset(g, 0, sizeof(g)); |
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1565 SDL_memset(b, 0, sizeof(b)); |
| 0 | 1566 if ( ioctl(console_fd, FBIOGETCMAP, &cmap) == 0 ) { |
| 1567 for ( i=ncolors-1; i>=0; --i ) { | |
| 1568 colors[i].r = (r[i]>>8); | |
| 1569 colors[i].g = (g[i]>>8); | |
| 1570 colors[i].b = (b[i]>>8); | |
| 1571 } | |
| 1572 } | |
| 1573 return(0); | |
| 1574 } | |
| 1575 return(1); | |
| 1576 } | |
| 1577 | |
| 1578 /* Note: If we are terminated, this could be called in the middle of | |
| 1579 another SDL video routine -- notably UpdateRects. | |
| 1580 */ | |
| 1581 static void FB_VideoQuit(_THIS) | |
| 1582 { | |
| 1583 int i, j; | |
| 1584 | |
| 1585 if ( this->screen ) { | |
| 1586 /* Clear screen and tell SDL not to free the pixels */ | |
| 1587 if ( this->screen->pixels && FB_InGraphicsMode(this) ) { | |
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Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
1588 #if defined(__powerpc__) || defined(__ia64__) /* SIGBUS when using SDL_memset() ?? */ |
| 0 | 1589 Uint8 *rowp = (Uint8 *)this->screen->pixels; |
| 1590 int left = this->screen->pitch*this->screen->h; | |
| 1591 while ( left-- ) { *rowp++ = 0; } | |
| 1592 #else | |
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3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
1593 SDL_memset(this->screen->pixels,0,this->screen->h*this->screen->pitch); |
| 0 | 1594 #endif |
| 1595 } | |
| 1596 /* This test fails when using the VGA16 shadow memory */ | |
| 1597 if ( ((char *)this->screen->pixels >= mapped_mem) && | |
| 1598 ((char *)this->screen->pixels < (mapped_mem+mapped_memlen)) ) { | |
| 1599 this->screen->pixels = NULL; | |
| 1600 } | |
| 1601 } | |
| 1602 | |
| 1603 /* Clear the lock mutex */ | |
| 1604 if ( hw_lock ) { | |
| 1605 SDL_DestroyMutex(hw_lock); | |
| 1606 hw_lock = NULL; | |
| 1607 } | |
| 1608 | |
| 1609 /* Clean up defined video modes */ | |
| 1610 for ( i=0; i<NUM_MODELISTS; ++i ) { | |
| 1611 if ( SDL_modelist[i] != NULL ) { | |
| 1612 for ( j=0; SDL_modelist[i][j]; ++j ) { | |
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Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
1613 SDL_free(SDL_modelist[i][j]); |
| 0 | 1614 } |
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1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
1615 SDL_free(SDL_modelist[i]); |
| 0 | 1616 SDL_modelist[i] = NULL; |
| 1617 } | |
| 1618 } | |
| 1619 | |
| 1620 /* Clean up the memory bucket list */ | |
| 1621 FB_FreeHWSurfaces(this); | |
| 1622 | |
| 1623 /* Close console and input file descriptors */ | |
| 1624 if ( console_fd > 0 ) { | |
| 1625 /* Unmap the video framebuffer and I/O registers */ | |
| 1626 if ( mapped_mem ) { | |
| 1627 munmap(mapped_mem, mapped_memlen); | |
| 1628 mapped_mem = NULL; | |
| 1629 } | |
| 1630 if ( mapped_io ) { | |
| 1631 munmap(mapped_io, mapped_iolen); | |
| 1632 mapped_io = NULL; | |
| 1633 } | |
| 1634 | |
| 1635 /* Restore the original video mode and palette */ | |
| 1636 if ( FB_InGraphicsMode(this) ) { | |
| 1637 FB_RestorePalette(this); | |
| 1638 ioctl(console_fd, FBIOPUT_VSCREENINFO, &saved_vinfo); | |
| 1639 } | |
| 1640 | |
| 1641 /* We're all done with the framebuffer */ | |
| 1642 close(console_fd); | |
| 1643 console_fd = -1; | |
| 1644 } | |
| 1645 FB_CloseMouse(this); | |
| 1646 FB_CloseKeyboard(this); | |
| 1647 } |