Mercurial > sdl-ios-xcode
annotate src/video/fbcon/SDL_fbvideo.c @ 1216:f8fc6fdd589d
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| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 02 Jan 2006 09:13:16 +0000 |
| parents | d082d2d66ec8 |
| children | ae9981987c2f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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Updated copyright information for 2004 (Happy New Year!)
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* Framebuffer console based SDL video driver implementation. | |
| 29 */ | |
| 30 | |
| 31 #include <stdlib.h> | |
| 32 #include <stdio.h> | |
| 33 #include <string.h> | |
| 34 #include <fcntl.h> | |
| 35 #include <unistd.h> | |
| 36 #include <sys/ioctl.h> | |
| 37 #include <sys/mman.h> | |
| 38 #include <asm/page.h> /* For definition of PAGE_SIZE */ | |
| 39 | |
| 40 #include "SDL.h" | |
| 41 #include "SDL_error.h" | |
| 42 #include "SDL_video.h" | |
| 43 #include "SDL_mouse.h" | |
| 44 #include "SDL_sysvideo.h" | |
| 45 #include "SDL_pixels_c.h" | |
| 46 #include "SDL_events_c.h" | |
| 47 #include "SDL_fbvideo.h" | |
| 48 #include "SDL_fbmouse_c.h" | |
| 49 #include "SDL_fbevents_c.h" | |
| 50 #include "SDL_fb3dfx.h" | |
| 51 #include "SDL_fbmatrox.h" | |
|
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52 #include "SDL_fbriva.h" |
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53 |
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54 /*#define FBCON_DEBUG*/ |
| 0 | 55 |
| 56 #if defined(i386) && defined(FB_TYPE_VGA_PLANES) | |
| 57 #define VGA16_FBCON_SUPPORT | |
| 58 #ifndef FB_AUX_VGA_PLANES_VGA4 | |
| 59 #define FB_AUX_VGA_PLANES_VGA4 0 | |
| 60 #endif | |
| 61 static inline void outb (unsigned char value, unsigned short port) | |
| 62 { | |
| 63 __asm__ __volatile__ ("outb %b0,%w1"::"a" (value), "Nd" (port)); | |
| 64 } | |
| 65 #endif /* FB_TYPE_VGA_PLANES */ | |
| 66 | |
| 67 /* A list of video resolutions that we query for (sorted largest to smallest) */ | |
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From: "Markus F.X.J. Oberhumer"
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68 static const SDL_Rect checkres[] = { |
| 0 | 69 { 0, 0, 1600, 1200 }, /* 16 bpp: 0x11E, or 286 */ |
| 70 { 0, 0, 1408, 1056 }, /* 16 bpp: 0x19A, or 410 */ | |
| 71 { 0, 0, 1280, 1024 }, /* 16 bpp: 0x11A, or 282 */ | |
| 72 { 0, 0, 1152, 864 }, /* 16 bpp: 0x192, or 402 */ | |
| 73 { 0, 0, 1024, 768 }, /* 16 bpp: 0x117, or 279 */ | |
| 74 { 0, 0, 960, 720 }, /* 16 bpp: 0x18A, or 394 */ | |
| 75 { 0, 0, 800, 600 }, /* 16 bpp: 0x114, or 276 */ | |
| 76 { 0, 0, 768, 576 }, /* 16 bpp: 0x182, or 386 */ | |
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Date: 03 Apr 2002 15:28:09 +0200
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77 { 0, 0, 720, 576 }, /* PAL */ |
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78 { 0, 0, 720, 480 }, /* NTSC */ |
| 0 | 79 { 0, 0, 640, 480 }, /* 16 bpp: 0x111, or 273 */ |
| 80 { 0, 0, 640, 400 }, /* 8 bpp: 0x100, or 256 */ | |
| 81 { 0, 0, 512, 384 }, | |
| 82 { 0, 0, 320, 240 }, | |
| 83 { 0, 0, 320, 200 } | |
| 84 }; | |
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85 static const struct { |
| 0 | 86 int xres; |
| 87 int yres; | |
| 88 int pixclock; | |
| 89 int left; | |
| 90 int right; | |
| 91 int upper; | |
| 92 int lower; | |
| 93 int hslen; | |
| 94 int vslen; | |
| 95 int sync; | |
| 96 int vmode; | |
| 97 } vesa_timings[] = { | |
| 98 #ifdef USE_VESA_TIMINGS /* Only tested on Matrox Millenium I */ | |
| 99 { 640, 400, 39771, 48, 16, 39, 8, 96, 2, 2, 0 }, /* 70 Hz */ | |
| 100 { 640, 480, 39683, 48, 16, 33, 10, 96, 2, 0, 0 }, /* 60 Hz */ | |
| 101 { 768, 576, 26101, 144, 16, 28, 6, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 102 { 800, 600, 24038, 144, 24, 28, 8, 112, 6, 0, 0 }, /* 60 Hz */ | |
| 103 { 960, 720, 17686, 144, 24, 28, 8, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 104 { 1024, 768, 15386, 160, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | |
| 105 { 1152, 864, 12286, 192, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | |
| 106 { 1280, 1024, 9369, 224, 32, 32, 4, 136, 4, 0, 0 }, /* 60 Hz */ | |
| 107 { 1408, 1056, 8214, 256, 40, 32, 5, 144, 5, 0, 0 }, /* 60 Hz */ | |
| 108 { 1600, 1200,/*?*/0, 272, 48, 32, 5, 152, 5, 0, 0 }, /* 60 Hz */ | |
| 109 #else | |
| 110 /* You can generate these timings from your XF86Config file using | |
| 111 the 'modeline2fb' perl script included with the fbset package. | |
| 112 These timings were generated for Matrox Millenium I, 15" monitor. | |
| 113 */ | |
| 114 { 320, 200, 79440, 16, 16, 20, 4, 48, 1, 0, 2 }, /* 70 Hz */ | |
| 115 { 320, 240, 63492, 16, 16, 16, 4, 48, 2, 0, 2 }, /* 72 Hz */ | |
| 116 { 512, 384, 49603, 48, 16, 16, 1, 64, 3, 0, 0 }, /* 78 Hz */ | |
| 117 { 640, 400, 31746, 96, 32, 41, 1, 64, 3, 2, 0 }, /* 85 Hz */ | |
| 118 { 640, 480, 31746, 120, 16, 16, 1, 64, 3, 0, 0 }, /* 75 Hz */ | |
| 119 { 768, 576, 26101, 144, 16, 28, 6, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 120 { 800, 600, 20000, 64, 56, 23, 37, 120, 6, 3, 0 }, /* 72 Hz */ | |
| 121 { 960, 720, 17686, 144, 24, 28, 8, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 122 { 1024, 768, 13333, 144, 24, 29, 3, 136, 6, 0, 0 }, /* 70 Hz */ | |
| 123 { 1152, 864, 12286, 192, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | |
| 124 { 1280, 1024, 9369, 224, 32, 32, 4, 136, 4, 0, 0 }, /* 60 Hz */ | |
| 125 { 1408, 1056, 8214, 256, 40, 32, 5, 144, 5, 0, 0 }, /* 60 Hz */ | |
| 126 { 1600, 1200,/*?*/0, 272, 48, 32, 5, 152, 5, 0, 0 }, /* 60 Hz */ | |
| 127 #endif | |
| 128 }; | |
| 129 | |
| 130 /* Initialization/Query functions */ | |
| 131 static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat); | |
| 132 static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); | |
| 133 static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 134 #ifdef VGA16_FBCON_SUPPORT | |
| 135 static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 136 #endif | |
| 137 static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); | |
| 138 static void FB_VideoQuit(_THIS); | |
| 139 | |
| 140 /* Hardware surface functions */ | |
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141 static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size); |
| 0 | 142 static void FB_FreeHWSurfaces(_THIS); |
| 143 static int FB_AllocHWSurface(_THIS, SDL_Surface *surface); | |
| 144 static int FB_LockHWSurface(_THIS, SDL_Surface *surface); | |
| 145 static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface); | |
| 146 static void FB_FreeHWSurface(_THIS, SDL_Surface *surface); | |
| 147 static void FB_WaitVBL(_THIS); | |
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148 static void FB_WaitIdle(_THIS); |
| 0 | 149 static int FB_FlipHWSurface(_THIS, SDL_Surface *surface); |
| 150 | |
| 151 /* Internal palette functions */ | |
| 152 static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, | |
| 153 struct fb_var_screeninfo *vinfo); | |
| 154 static void FB_RestorePalette(_THIS); | |
| 155 | |
| 156 /* FB driver bootstrap functions */ | |
| 157 | |
| 158 static int FB_Available(void) | |
| 159 { | |
| 160 int console; | |
| 161 const char *SDL_fbdev; | |
| 162 | |
| 163 SDL_fbdev = getenv("SDL_FBDEV"); | |
| 164 if ( SDL_fbdev == NULL ) { | |
| 165 SDL_fbdev = "/dev/fb0"; | |
| 166 } | |
| 167 console = open(SDL_fbdev, O_RDWR, 0); | |
| 168 if ( console >= 0 ) { | |
| 169 close(console); | |
| 170 } | |
| 171 return(console >= 0); | |
| 172 } | |
| 173 | |
| 174 static void FB_DeleteDevice(SDL_VideoDevice *device) | |
| 175 { | |
| 176 free(device->hidden); | |
| 177 free(device); | |
| 178 } | |
| 179 | |
| 180 static SDL_VideoDevice *FB_CreateDevice(int devindex) | |
| 181 { | |
| 182 SDL_VideoDevice *this; | |
| 183 | |
| 184 /* Initialize all variables that we clean on shutdown */ | |
| 185 this = (SDL_VideoDevice *)malloc(sizeof(SDL_VideoDevice)); | |
| 186 if ( this ) { | |
| 187 memset(this, 0, (sizeof *this)); | |
| 188 this->hidden = (struct SDL_PrivateVideoData *) | |
| 189 malloc((sizeof *this->hidden)); | |
| 190 } | |
| 191 if ( (this == NULL) || (this->hidden == NULL) ) { | |
| 192 SDL_OutOfMemory(); | |
| 193 if ( this ) { | |
| 194 free(this); | |
| 195 } | |
| 196 return(0); | |
| 197 } | |
| 198 memset(this->hidden, 0, (sizeof *this->hidden)); | |
| 199 wait_vbl = FB_WaitVBL; | |
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200 wait_idle = FB_WaitIdle; |
| 0 | 201 mouse_fd = -1; |
| 202 keyboard_fd = -1; | |
| 203 | |
| 204 /* Set the function pointers */ | |
| 205 this->VideoInit = FB_VideoInit; | |
| 206 this->ListModes = FB_ListModes; | |
| 207 this->SetVideoMode = FB_SetVideoMode; | |
| 208 this->SetColors = FB_SetColors; | |
| 209 this->UpdateRects = NULL; | |
| 210 this->VideoQuit = FB_VideoQuit; | |
| 211 this->AllocHWSurface = FB_AllocHWSurface; | |
| 212 this->CheckHWBlit = NULL; | |
| 213 this->FillHWRect = NULL; | |
| 214 this->SetHWColorKey = NULL; | |
| 215 this->SetHWAlpha = NULL; | |
| 216 this->LockHWSurface = FB_LockHWSurface; | |
| 217 this->UnlockHWSurface = FB_UnlockHWSurface; | |
| 218 this->FlipHWSurface = FB_FlipHWSurface; | |
| 219 this->FreeHWSurface = FB_FreeHWSurface; | |
| 220 this->SetCaption = NULL; | |
| 221 this->SetIcon = NULL; | |
| 222 this->IconifyWindow = NULL; | |
| 223 this->GrabInput = NULL; | |
| 224 this->GetWMInfo = NULL; | |
| 225 this->InitOSKeymap = FB_InitOSKeymap; | |
| 226 this->PumpEvents = FB_PumpEvents; | |
| 227 | |
| 228 this->free = FB_DeleteDevice; | |
| 229 | |
| 230 return this; | |
| 231 } | |
| 232 | |
| 233 VideoBootStrap FBCON_bootstrap = { | |
| 234 "fbcon", "Linux Framebuffer Console", | |
| 235 FB_Available, FB_CreateDevice | |
| 236 }; | |
| 237 | |
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238 #define FB_MODES_DB "/etc/fb.modes" |
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239 |
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240 static int read_fbmodes_line(FILE*f, char* line, int length) |
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241 { |
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242 int blank; |
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243 char* c; |
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244 int i; |
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245 |
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246 blank=0; |
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247 /* find a relevant line */ |
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248 do |
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249 { |
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250 if (fgets(line,length,f)<=0) |
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251 return 0; |
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252 c=line; |
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253 while(((*c=='\t')||(*c==' '))&&(*c!=0)) |
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254 c++; |
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255 |
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256 if ((*c=='\n')||(*c=='#')||(*c==0)) |
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257 blank=1; |
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258 else |
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259 blank=0; |
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260 } |
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261 while(blank); |
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262 /* remove whitespace at the begining of the string */ |
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263 i=0; |
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264 do |
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265 { |
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266 line[i]=c[i]; |
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267 i++; |
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268 } |
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269 while(c[i]!=0); |
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270 return 1; |
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271 } |
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272 |
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273 static int read_fbmodes_mode(FILE *f, struct fb_var_screeninfo *vinfo) |
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274 { |
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275 char line[1024]; |
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276 char option[256]; |
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277 |
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278 /* Find a "geometry" */ |
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279 do { |
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280 if (read_fbmodes_line(f, line, sizeof(line))==0) |
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281 return 0; |
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282 if (strncmp(line,"geometry",8)==0) |
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283 break; |
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284 } |
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285 while(1); |
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286 |
|
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287 sscanf(line, "geometry %d %d %d %d %d", &vinfo->xres, &vinfo->yres, |
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288 &vinfo->xres_virtual, &vinfo->yres_virtual, &vinfo->bits_per_pixel); |
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289 if (read_fbmodes_line(f, line, sizeof(line))==0) |
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290 return 0; |
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291 |
|
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292 sscanf(line, "timings %d %d %d %d %d %d %d", &vinfo->pixclock, |
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293 &vinfo->left_margin, &vinfo->right_margin, &vinfo->upper_margin, |
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294 &vinfo->lower_margin, &vinfo->hsync_len, &vinfo->vsync_len); |
|
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295 |
|
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296 vinfo->sync=0; |
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297 vinfo->vmode=FB_VMODE_NONINTERLACED; |
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298 |
|
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299 /* Parse misc options */ |
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300 do { |
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301 if (read_fbmodes_line(f, line, sizeof(line))==0) |
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302 return 0; |
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303 |
|
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304 if (strncmp(line,"hsync",5)==0) { |
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305 sscanf(line,"hsync %s",option); |
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306 if (strncmp(option,"high",4)==0) |
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307 vinfo->sync |= FB_SYNC_HOR_HIGH_ACT; |
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308 } |
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309 else if (strncmp(line,"vsync",5)==0) { |
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310 sscanf(line,"vsync %s",option); |
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311 if (strncmp(option,"high",4)==0) |
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312 vinfo->sync |= FB_SYNC_VERT_HIGH_ACT; |
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313 } |
|
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314 else if (strncmp(line,"csync",5)==0) { |
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315 sscanf(line,"csync %s",option); |
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316 if (strncmp(option,"high",4)==0) |
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317 vinfo->sync |= FB_SYNC_COMP_HIGH_ACT; |
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318 } |
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319 else if (strncmp(line,"extsync",5)==0) { |
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320 sscanf(line,"extsync %s",option); |
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321 if (strncmp(option,"true",4)==0) |
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322 vinfo->sync |= FB_SYNC_EXT; |
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323 } |
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324 else if (strncmp(line,"laced",5)==0) { |
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325 sscanf(line,"laced %s",option); |
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326 if (strncmp(option,"true",4)==0) |
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327 vinfo->vmode |= FB_VMODE_INTERLACED; |
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328 } |
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329 else if (strncmp(line,"double",6)==0) { |
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330 sscanf(line,"double %s",option); |
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331 if (strncmp(option,"true",4)==0) |
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332 vinfo->vmode |= FB_VMODE_DOUBLE; |
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333 } |
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334 } |
|
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335 while(strncmp(line,"endmode",7)!=0); |
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336 |
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337 return 1; |
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338 } |
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339 |
| 0 | 340 static int FB_CheckMode(_THIS, struct fb_var_screeninfo *vinfo, |
| 341 int index, unsigned int *w, unsigned int *h) | |
| 342 { | |
| 343 int mode_okay; | |
| 344 | |
| 345 mode_okay = 0; | |
| 346 vinfo->bits_per_pixel = (index+1)*8; | |
| 347 vinfo->xres = *w; | |
| 348 vinfo->xres_virtual = *w; | |
| 349 vinfo->yres = *h; | |
| 350 vinfo->yres_virtual = *h; | |
| 351 vinfo->activate = FB_ACTIVATE_TEST; | |
| 352 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, vinfo) == 0 ) { | |
| 353 #ifdef FBCON_DEBUG | |
| 354 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); | |
| 355 #endif | |
| 356 if ( (((vinfo->bits_per_pixel+7)/8)-1) == index ) { | |
| 357 *w = vinfo->xres; | |
| 358 *h = vinfo->yres; | |
| 359 mode_okay = 1; | |
| 360 } | |
| 361 } | |
| 362 return mode_okay; | |
| 363 } | |
| 364 | |
|
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365 static int FB_AddMode(_THIS, int index, unsigned int w, unsigned int h, int check_timings) |
| 0 | 366 { |
| 367 SDL_Rect *mode; | |
| 368 int i; | |
| 369 int next_mode; | |
| 370 | |
| 371 /* Check to see if we already have this mode */ | |
| 372 if ( SDL_nummodes[index] > 0 ) { | |
| 373 mode = SDL_modelist[index][SDL_nummodes[index]-1]; | |
| 374 if ( (mode->w == w) && (mode->h == h) ) { | |
| 375 #ifdef FBCON_DEBUG | |
| 376 fprintf(stderr, "We already have mode %dx%d at %d bytes per pixel\n", w, h, index+1); | |
| 377 #endif | |
| 378 return(0); | |
| 379 } | |
| 380 } | |
| 381 | |
| 382 /* Only allow a mode if we have a valid timing for it */ | |
|
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383 if ( check_timings ) { |
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384 int found_timing = 0; |
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385 for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { |
|
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386 if ( (w == vesa_timings[i].xres) && |
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387 (h == vesa_timings[i].yres) && vesa_timings[i].pixclock ) { |
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388 found_timing = 1; |
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389 break; |
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390 } |
| 0 | 391 } |
|
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392 if ( !found_timing ) { |
| 0 | 393 #ifdef FBCON_DEBUG |
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394 fprintf(stderr, "No valid timing line for mode %dx%d\n", w, h); |
| 0 | 395 #endif |
|
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396 return(0); |
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397 } |
| 0 | 398 } |
| 399 | |
| 400 /* Set up the new video mode rectangle */ | |
| 401 mode = (SDL_Rect *)malloc(sizeof *mode); | |
| 402 if ( mode == NULL ) { | |
| 403 SDL_OutOfMemory(); | |
| 404 return(-1); | |
| 405 } | |
| 406 mode->x = 0; | |
| 407 mode->y = 0; | |
| 408 mode->w = w; | |
| 409 mode->h = h; | |
| 410 #ifdef FBCON_DEBUG | |
| 411 fprintf(stderr, "Adding mode %dx%d at %d bytes per pixel\n", w, h, index+1); | |
| 412 #endif | |
| 413 | |
| 414 /* Allocate the new list of modes, and fill in the new mode */ | |
| 415 next_mode = SDL_nummodes[index]; | |
| 416 SDL_modelist[index] = (SDL_Rect **) | |
| 417 realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *)); | |
| 418 if ( SDL_modelist[index] == NULL ) { | |
| 419 SDL_OutOfMemory(); | |
| 420 SDL_nummodes[index] = 0; | |
| 421 free(mode); | |
| 422 return(-1); | |
| 423 } | |
| 424 SDL_modelist[index][next_mode] = mode; | |
| 425 SDL_modelist[index][next_mode+1] = NULL; | |
| 426 SDL_nummodes[index]++; | |
| 427 | |
| 428 return(0); | |
| 429 } | |
| 430 | |
|
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431 static int cmpmodes(const void *va, const void *vb) |
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432 { |
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433 const SDL_Rect *a = *(const SDL_Rect**)va; |
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434 const SDL_Rect *b = *(const SDL_Rect**)vb; |
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435 if ( a->h == b->h ) |
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436 return b->w - a->w; |
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437 else |
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438 return b->h - a->h; |
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439 } |
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440 |
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441 static int FB_SortModes(_THIS) |
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442 { |
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443 int i; |
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444 for ( i=0; i<NUM_MODELISTS; ++i ) { |
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445 if ( SDL_nummodes[i] > 0 ) { |
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446 qsort(SDL_modelist[i], SDL_nummodes[i], sizeof *SDL_modelist[i], cmpmodes); |
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447 } |
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448 } |
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449 } |
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450 |
| 0 | 451 static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat) |
| 452 { | |
| 453 struct fb_fix_screeninfo finfo; | |
| 454 struct fb_var_screeninfo vinfo; | |
| 455 int i, j; | |
| 456 int current_index; | |
| 457 unsigned int current_w; | |
| 458 unsigned int current_h; | |
| 459 const char *SDL_fbdev; | |
|
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460 FILE *modesdb; |
| 0 | 461 |
| 462 /* Initialize the library */ | |
| 463 SDL_fbdev = getenv("SDL_FBDEV"); | |
| 464 if ( SDL_fbdev == NULL ) { | |
| 465 SDL_fbdev = "/dev/fb0"; | |
| 466 } | |
| 467 console_fd = open(SDL_fbdev, O_RDWR, 0); | |
| 468 if ( console_fd < 0 ) { | |
| 469 SDL_SetError("Unable to open %s", SDL_fbdev); | |
| 470 return(-1); | |
| 471 } | |
| 472 | |
| 473 #ifndef DISABLE_THREADS | |
| 474 /* Create the hardware surface lock mutex */ | |
| 475 hw_lock = SDL_CreateMutex(); | |
| 476 if ( hw_lock == NULL ) { | |
| 477 SDL_SetError("Unable to create lock mutex"); | |
| 478 FB_VideoQuit(this); | |
| 479 return(-1); | |
| 480 } | |
| 481 #endif | |
| 482 | |
| 483 /* Get the type of video hardware */ | |
| 484 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 485 SDL_SetError("Couldn't get console hardware info"); | |
| 486 FB_VideoQuit(this); | |
| 487 return(-1); | |
| 488 } | |
| 489 switch (finfo.type) { | |
| 490 case FB_TYPE_PACKED_PIXELS: | |
| 491 /* Supported, no worries.. */ | |
| 492 break; | |
| 493 #ifdef VGA16_FBCON_SUPPORT | |
| 494 case FB_TYPE_VGA_PLANES: | |
| 495 /* VGA16 is supported, but that's it */ | |
| 496 if ( finfo.type_aux == FB_AUX_VGA_PLANES_VGA4 ) { | |
| 497 if ( ioperm(0x3b4, 0x3df - 0x3b4 + 1, 1) < 0 ) { | |
| 498 SDL_SetError("No I/O port permissions"); | |
| 499 FB_VideoQuit(this); | |
| 500 return(-1); | |
| 501 } | |
| 502 this->SetVideoMode = FB_SetVGA16Mode; | |
| 503 break; | |
| 504 } | |
| 505 /* Fall through to unsupported case */ | |
| 506 #endif /* VGA16_FBCON_SUPPORT */ | |
| 507 default: | |
| 508 SDL_SetError("Unsupported console hardware"); | |
| 509 FB_VideoQuit(this); | |
| 510 return(-1); | |
| 511 } | |
| 512 switch (finfo.visual) { | |
| 513 case FB_VISUAL_TRUECOLOR: | |
| 514 case FB_VISUAL_PSEUDOCOLOR: | |
| 515 case FB_VISUAL_STATIC_PSEUDOCOLOR: | |
| 516 case FB_VISUAL_DIRECTCOLOR: | |
| 517 break; | |
| 518 default: | |
| 519 SDL_SetError("Unsupported console hardware"); | |
| 520 FB_VideoQuit(this); | |
| 521 return(-1); | |
| 522 } | |
| 523 | |
| 524 /* Check if the user wants to disable hardware acceleration */ | |
| 525 { const char *fb_accel; | |
| 526 fb_accel = getenv("SDL_FBACCEL"); | |
| 527 if ( fb_accel ) { | |
| 528 finfo.accel = atoi(fb_accel); | |
| 529 } | |
| 530 } | |
| 531 | |
| 532 /* Memory map the device, compensating for buggy PPC mmap() */ | |
| 533 mapped_offset = (((long)finfo.smem_start) - | |
| 534 (((long)finfo.smem_start)&~(PAGE_SIZE-1))); | |
| 535 mapped_memlen = finfo.smem_len+mapped_offset; | |
| 536 mapped_mem = mmap(NULL, mapped_memlen, | |
| 537 PROT_READ|PROT_WRITE, MAP_SHARED, console_fd, 0); | |
| 538 if ( mapped_mem == (char *)-1 ) { | |
| 539 SDL_SetError("Unable to memory map the video hardware"); | |
| 540 mapped_mem = NULL; | |
| 541 FB_VideoQuit(this); | |
| 542 return(-1); | |
| 543 } | |
| 544 | |
| 545 /* Determine the current screen depth */ | |
| 546 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 547 SDL_SetError("Couldn't get console pixel format"); | |
| 548 FB_VideoQuit(this); | |
| 549 return(-1); | |
| 550 } | |
| 551 vformat->BitsPerPixel = vinfo.bits_per_pixel; | |
| 552 if ( vformat->BitsPerPixel < 8 ) { | |
| 553 /* Assuming VGA16, we handle this via a shadow framebuffer */ | |
| 554 vformat->BitsPerPixel = 8; | |
| 555 } | |
| 556 for ( i=0; i<vinfo.red.length; ++i ) { | |
| 557 vformat->Rmask <<= 1; | |
| 558 vformat->Rmask |= (0x00000001<<vinfo.red.offset); | |
| 559 } | |
| 560 for ( i=0; i<vinfo.green.length; ++i ) { | |
| 561 vformat->Gmask <<= 1; | |
| 562 vformat->Gmask |= (0x00000001<<vinfo.green.offset); | |
| 563 } | |
| 564 for ( i=0; i<vinfo.blue.length; ++i ) { | |
| 565 vformat->Bmask <<= 1; | |
| 566 vformat->Bmask |= (0x00000001<<vinfo.blue.offset); | |
| 567 } | |
| 568 saved_vinfo = vinfo; | |
| 569 | |
| 570 /* Save hardware palette, if needed */ | |
| 571 FB_SavePalette(this, &finfo, &vinfo); | |
| 572 | |
| 573 /* If the I/O registers are available, memory map them so we | |
| 574 can take advantage of any supported hardware acceleration. | |
| 575 */ | |
| 576 vinfo.accel_flags = 0; /* Temporarily reserve registers */ | |
| 577 ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo); | |
| 578 if ( finfo.accel && finfo.mmio_len ) { | |
| 579 mapped_iolen = finfo.mmio_len; | |
| 580 mapped_io = mmap(NULL, mapped_iolen, PROT_READ|PROT_WRITE, | |
| 581 MAP_SHARED, console_fd, mapped_memlen); | |
| 582 if ( mapped_io == (char *)-1 ) { | |
| 583 /* Hmm, failed to memory map I/O registers */ | |
| 584 mapped_io = NULL; | |
| 585 } | |
| 586 } | |
| 587 | |
| 588 /* Query for the list of available video modes */ | |
| 589 current_w = vinfo.xres; | |
| 590 current_h = vinfo.yres; | |
| 591 current_index = ((vinfo.bits_per_pixel+7)/8)-1; | |
|
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592 modesdb = fopen(FB_MODES_DB, "r"); |
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593 for ( i=0; i<NUM_MODELISTS; ++i ) { |
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594 SDL_nummodes[i] = 0; |
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595 SDL_modelist[i] = NULL; |
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596 } |
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597 if ( getenv("SDL_FB_BROKEN_MODES") != NULL ) { |
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598 FB_AddMode(this, current_index, current_w, current_h, 0); |
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599 } else if(modesdb) { |
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600 while ( read_fbmodes_mode(modesdb, &vinfo) ) { |
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601 for ( i=0; i<NUM_MODELISTS; ++i ) { |
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602 unsigned int w, h; |
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603 |
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604 /* See if we are querying for the current mode */ |
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605 w = vinfo.xres; |
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606 h = vinfo.yres; |
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607 if ( i == current_index ) { |
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608 if ( (current_w > w) || (current_h > h) ) { |
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609 /* Only check once */ |
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610 FB_AddMode(this, i, current_w, current_h, 0); |
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611 current_index = -1; |
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612 } |
|
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613 } |
|
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614 if ( FB_CheckMode(this, &vinfo, i, &w, &h) ) { |
|
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615 FB_AddMode(this, i, w, h, 0); |
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616 } |
|
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617 } |
|
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618 } |
|
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619 fclose(modesdb); |
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620 FB_SortModes(this); |
|
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621 } else { |
|
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622 for ( i=0; i<NUM_MODELISTS; ++i ) { |
|
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623 for ( j=0; j<(sizeof(checkres)/sizeof(checkres[0])); ++j ) { |
|
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624 unsigned int w, h; |
| 0 | 625 |
|
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626 /* See if we are querying for the current mode */ |
|
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627 w = checkres[j].w; |
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628 h = checkres[j].h; |
|
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629 if ( i == current_index ) { |
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630 if ( (current_w > w) || (current_h > h) ) { |
|
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631 /* Only check once */ |
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632 FB_AddMode(this, i, current_w, current_h, 0); |
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633 current_index = -1; |
|
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634 } |
| 0 | 635 } |
|
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636 if ( FB_CheckMode(this, &vinfo, i, &w, &h) ) { |
|
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637 FB_AddMode(this, i, w, h, 1); |
|
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|
638 } |
| 0 | 639 } |
| 640 } | |
| 641 } | |
| 642 | |
| 643 /* Fill in our hardware acceleration capabilities */ | |
| 644 this->info.wm_available = 0; | |
| 645 this->info.hw_available = 1; | |
| 646 this->info.video_mem = finfo.smem_len/1024; | |
| 647 if ( mapped_io ) { | |
| 648 switch (finfo.accel) { | |
| 649 case FB_ACCEL_MATROX_MGA2064W: | |
| 650 case FB_ACCEL_MATROX_MGA1064SG: | |
| 651 case FB_ACCEL_MATROX_MGA2164W: | |
| 652 case FB_ACCEL_MATROX_MGA2164W_AGP: | |
| 653 case FB_ACCEL_MATROX_MGAG100: | |
| 654 /*case FB_ACCEL_MATROX_MGAG200: G200 acceleration broken! */ | |
| 655 case FB_ACCEL_MATROX_MGAG400: | |
| 656 #ifdef FBACCEL_DEBUG | |
| 657 printf("Matrox hardware accelerator!\n"); | |
| 658 #endif | |
| 659 FB_MatroxAccel(this, finfo.accel); | |
| 660 break; | |
| 661 case FB_ACCEL_3DFX_BANSHEE: | |
| 662 #ifdef FBACCEL_DEBUG | |
| 663 printf("3DFX hardware accelerator!\n"); | |
| 664 #endif | |
| 665 FB_3DfxAccel(this, finfo.accel); | |
| 666 break; | |
|
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667 case FB_ACCEL_NV3: |
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668 case FB_ACCEL_NV4: |
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669 #ifdef FBACCEL_DEBUG |
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670 printf("NVidia hardware accelerator!\n"); |
|
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671 #endif |
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672 FB_RivaAccel(this, finfo.accel); |
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673 break; |
| 0 | 674 default: |
| 675 #ifdef FBACCEL_DEBUG | |
| 676 printf("Unknown hardware accelerator.\n"); | |
| 677 #endif | |
| 678 break; | |
| 679 } | |
| 680 } | |
| 681 | |
| 682 /* Enable mouse and keyboard support */ | |
| 683 if ( FB_OpenKeyboard(this) < 0 ) { | |
| 684 FB_VideoQuit(this); | |
| 685 return(-1); | |
| 686 } | |
| 687 if ( FB_OpenMouse(this) < 0 ) { | |
| 688 const char *sdl_nomouse; | |
| 689 | |
| 690 sdl_nomouse = getenv("SDL_NOMOUSE"); | |
| 691 if ( ! sdl_nomouse ) { | |
| 692 SDL_SetError("Unable to open mouse"); | |
| 693 FB_VideoQuit(this); | |
| 694 return(-1); | |
| 695 } | |
| 696 } | |
| 697 | |
| 698 /* We're done! */ | |
| 699 return(0); | |
| 700 } | |
| 701 | |
| 702 static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) | |
| 703 { | |
| 704 return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]); | |
| 705 } | |
| 706 | |
| 707 /* Various screen update functions available */ | |
| 708 static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); | |
| 709 #ifdef VGA16_FBCON_SUPPORT | |
| 710 static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects); | |
| 711 #endif | |
| 712 | |
| 713 #ifdef FBCON_DEBUG | |
| 714 static void print_vinfo(struct fb_var_screeninfo *vinfo) | |
| 715 { | |
| 716 fprintf(stderr, "Printing vinfo:\n"); | |
| 717 fprintf(stderr, "\txres: %d\n", vinfo->xres); | |
| 718 fprintf(stderr, "\tyres: %d\n", vinfo->yres); | |
| 719 fprintf(stderr, "\txres_virtual: %d\n", vinfo->xres_virtual); | |
| 720 fprintf(stderr, "\tyres_virtual: %d\n", vinfo->yres_virtual); | |
| 721 fprintf(stderr, "\txoffset: %d\n", vinfo->xoffset); | |
| 722 fprintf(stderr, "\tyoffset: %d\n", vinfo->yoffset); | |
| 723 fprintf(stderr, "\tbits_per_pixel: %d\n", vinfo->bits_per_pixel); | |
| 724 fprintf(stderr, "\tgrayscale: %d\n", vinfo->grayscale); | |
| 725 fprintf(stderr, "\tnonstd: %d\n", vinfo->nonstd); | |
| 726 fprintf(stderr, "\tactivate: %d\n", vinfo->activate); | |
| 727 fprintf(stderr, "\theight: %d\n", vinfo->height); | |
| 728 fprintf(stderr, "\twidth: %d\n", vinfo->width); | |
| 729 fprintf(stderr, "\taccel_flags: %d\n", vinfo->accel_flags); | |
| 730 fprintf(stderr, "\tpixclock: %d\n", vinfo->pixclock); | |
| 731 fprintf(stderr, "\tleft_margin: %d\n", vinfo->left_margin); | |
| 732 fprintf(stderr, "\tright_margin: %d\n", vinfo->right_margin); | |
| 733 fprintf(stderr, "\tupper_margin: %d\n", vinfo->upper_margin); | |
| 734 fprintf(stderr, "\tlower_margin: %d\n", vinfo->lower_margin); | |
| 735 fprintf(stderr, "\thsync_len: %d\n", vinfo->hsync_len); | |
| 736 fprintf(stderr, "\tvsync_len: %d\n", vinfo->vsync_len); | |
| 737 fprintf(stderr, "\tsync: %d\n", vinfo->sync); | |
| 738 fprintf(stderr, "\tvmode: %d\n", vinfo->vmode); | |
| 739 fprintf(stderr, "\tred: %d/%d\n", vinfo->red.length, vinfo->red.offset); | |
| 740 fprintf(stderr, "\tgreen: %d/%d\n", vinfo->green.length, vinfo->green.offset); | |
| 741 fprintf(stderr, "\tblue: %d/%d\n", vinfo->blue.length, vinfo->blue.offset); | |
| 742 fprintf(stderr, "\talpha: %d/%d\n", vinfo->transp.length, vinfo->transp.offset); | |
| 743 } | |
| 744 static void print_finfo(struct fb_fix_screeninfo *finfo) | |
| 745 { | |
| 746 fprintf(stderr, "Printing finfo:\n"); | |
| 747 fprintf(stderr, "\tsmem_start = %p\n", (char *)finfo->smem_start); | |
| 748 fprintf(stderr, "\tsmem_len = %d\n", finfo->smem_len); | |
| 749 fprintf(stderr, "\ttype = %d\n", finfo->type); | |
| 750 fprintf(stderr, "\ttype_aux = %d\n", finfo->type_aux); | |
| 751 fprintf(stderr, "\tvisual = %d\n", finfo->visual); | |
| 752 fprintf(stderr, "\txpanstep = %d\n", finfo->xpanstep); | |
| 753 fprintf(stderr, "\typanstep = %d\n", finfo->ypanstep); | |
| 754 fprintf(stderr, "\tywrapstep = %d\n", finfo->ywrapstep); | |
| 755 fprintf(stderr, "\tline_length = %d\n", finfo->line_length); | |
| 756 fprintf(stderr, "\tmmio_start = %p\n", (char *)finfo->mmio_start); | |
| 757 fprintf(stderr, "\tmmio_len = %d\n", finfo->mmio_len); | |
| 758 fprintf(stderr, "\taccel = %d\n", finfo->accel); | |
| 759 } | |
| 760 #endif | |
| 761 | |
| 762 static int choose_fbmodes_mode(struct fb_var_screeninfo *vinfo) | |
| 763 { | |
| 764 int matched; | |
|
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765 FILE *modesdb; |
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766 struct fb_var_screeninfo cinfo; |
| 0 | 767 |
| 768 matched = 0; | |
|
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769 modesdb = fopen(FB_MODES_DB, "r"); |
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770 if ( modesdb ) { |
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771 /* Parse the mode definition file */ |
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772 while ( read_fbmodes_mode(modesdb, &cinfo) ) { |
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773 if ( vinfo->xres == cinfo.xres && |
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774 vinfo->yres == cinfo.yres ) { |
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775 matched = 1; |
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776 break; |
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777 } |
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778 } |
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779 fclose(modesdb); |
| 0 | 780 } |
| 781 return(matched); | |
| 782 } | |
| 783 | |
| 784 static int choose_vesa_mode(struct fb_var_screeninfo *vinfo) | |
| 785 { | |
| 786 int matched; | |
| 787 int i; | |
| 788 | |
| 789 /* Check for VESA timings */ | |
| 790 matched = 0; | |
| 791 for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { | |
| 792 if ( (vinfo->xres == vesa_timings[i].xres) && | |
| 793 (vinfo->yres == vesa_timings[i].yres) ) { | |
| 794 #ifdef FBCON_DEBUG | |
| 795 fprintf(stderr, "Using VESA timings for %dx%d\n", | |
| 796 vinfo->xres, vinfo->yres); | |
| 797 #endif | |
| 798 if ( vesa_timings[i].pixclock ) { | |
| 799 vinfo->pixclock = vesa_timings[i].pixclock; | |
| 800 } | |
| 801 vinfo->left_margin = vesa_timings[i].left; | |
| 802 vinfo->right_margin = vesa_timings[i].right; | |
| 803 vinfo->upper_margin = vesa_timings[i].upper; | |
| 804 vinfo->lower_margin = vesa_timings[i].lower; | |
| 805 vinfo->hsync_len = vesa_timings[i].hslen; | |
| 806 vinfo->vsync_len = vesa_timings[i].vslen; | |
| 807 vinfo->sync = vesa_timings[i].sync; | |
| 808 vinfo->vmode = vesa_timings[i].vmode; | |
| 809 matched = 1; | |
| 810 break; | |
| 811 } | |
| 812 } | |
| 813 return(matched); | |
| 814 } | |
| 815 | |
| 816 #ifdef VGA16_FBCON_SUPPORT | |
| 817 static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, | |
| 818 int width, int height, int bpp, Uint32 flags) | |
| 819 { | |
| 820 struct fb_fix_screeninfo finfo; | |
| 821 struct fb_var_screeninfo vinfo; | |
| 822 | |
| 823 /* Set the terminal into graphics mode */ | |
| 824 if ( FB_EnterGraphicsMode(this) < 0 ) { | |
| 825 return(NULL); | |
| 826 } | |
| 827 | |
| 828 /* Restore the original palette */ | |
| 829 FB_RestorePalette(this); | |
| 830 | |
| 831 /* Set the video mode and get the final screen format */ | |
| 832 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 833 SDL_SetError("Couldn't get console screen info"); | |
| 834 return(NULL); | |
| 835 } | |
| 836 cache_vinfo = vinfo; | |
| 837 #ifdef FBCON_DEBUG | |
| 838 fprintf(stderr, "Printing actual vinfo:\n"); | |
| 839 print_vinfo(&vinfo); | |
| 840 #endif | |
| 841 if ( ! SDL_ReallocFormat(current, bpp, 0, 0, 0, 0) ) { | |
| 842 return(NULL); | |
| 843 } | |
|
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844 current->format->palette->ncolors = 16; |
| 0 | 845 |
| 846 /* Get the fixed information about the console hardware. | |
| 847 This is necessary since finfo.line_length changes. | |
| 848 */ | |
| 849 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 850 SDL_SetError("Couldn't get console hardware info"); | |
| 851 return(NULL); | |
| 852 } | |
| 853 #ifdef FBCON_DEBUG | |
| 854 fprintf(stderr, "Printing actual finfo:\n"); | |
| 855 print_finfo(&finfo); | |
| 856 #endif | |
| 857 | |
| 858 /* Save hardware palette, if needed */ | |
| 859 FB_SavePalette(this, &finfo, &vinfo); | |
| 860 | |
| 861 /* Set up the new mode framebuffer */ | |
| 862 current->flags = SDL_FULLSCREEN; | |
| 863 current->w = vinfo.xres; | |
| 864 current->h = vinfo.yres; | |
| 865 current->pitch = current->w; | |
| 866 current->pixels = malloc(current->h*current->pitch); | |
| 867 | |
| 868 /* Set the update rectangle function */ | |
| 869 this->UpdateRects = FB_VGA16Update; | |
| 870 | |
| 871 /* We're done */ | |
| 872 return(current); | |
| 873 } | |
| 874 #endif /* VGA16_FBCON_SUPPORT */ | |
| 875 | |
| 876 static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, | |
| 877 int width, int height, int bpp, Uint32 flags) | |
| 878 { | |
| 879 struct fb_fix_screeninfo finfo; | |
| 880 struct fb_var_screeninfo vinfo; | |
| 881 int i; | |
| 882 Uint32 Rmask; | |
| 883 Uint32 Gmask; | |
| 884 Uint32 Bmask; | |
| 885 char *surfaces_mem; | |
| 886 int surfaces_len; | |
| 887 | |
| 888 /* Set the terminal into graphics mode */ | |
| 889 if ( FB_EnterGraphicsMode(this) < 0 ) { | |
| 890 return(NULL); | |
| 891 } | |
| 892 | |
| 893 /* Restore the original palette */ | |
| 894 FB_RestorePalette(this); | |
| 895 | |
| 896 /* Set the video mode and get the final screen format */ | |
| 897 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 898 SDL_SetError("Couldn't get console screen info"); | |
| 899 return(NULL); | |
| 900 } | |
| 901 #ifdef FBCON_DEBUG | |
| 902 fprintf(stderr, "Printing original vinfo:\n"); | |
| 903 print_vinfo(&vinfo); | |
| 904 #endif | |
| 905 if ( (vinfo.xres != width) || (vinfo.yres != height) || | |
| 906 (vinfo.bits_per_pixel != bpp) || (flags & SDL_DOUBLEBUF) ) { | |
| 907 vinfo.activate = FB_ACTIVATE_NOW; | |
| 908 vinfo.accel_flags = 0; | |
| 909 vinfo.bits_per_pixel = bpp; | |
| 910 vinfo.xres = width; | |
| 911 vinfo.xres_virtual = width; | |
| 912 vinfo.yres = height; | |
| 913 if ( flags & SDL_DOUBLEBUF ) { | |
| 914 vinfo.yres_virtual = height*2; | |
| 915 } else { | |
| 916 vinfo.yres_virtual = height; | |
| 917 } | |
| 918 vinfo.xoffset = 0; | |
| 919 vinfo.yoffset = 0; | |
| 920 vinfo.red.length = vinfo.red.offset = 0; | |
| 921 vinfo.green.length = vinfo.green.offset = 0; | |
| 922 vinfo.blue.length = vinfo.blue.offset = 0; | |
| 923 vinfo.transp.length = vinfo.transp.offset = 0; | |
| 924 if ( ! choose_fbmodes_mode(&vinfo) ) { | |
| 925 choose_vesa_mode(&vinfo); | |
| 926 } | |
| 927 #ifdef FBCON_DEBUG | |
| 928 fprintf(stderr, "Printing wanted vinfo:\n"); | |
| 929 print_vinfo(&vinfo); | |
| 930 #endif | |
| 931 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { | |
| 932 vinfo.yres_virtual = height; | |
| 933 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { | |
| 934 SDL_SetError("Couldn't set console screen info"); | |
| 935 return(NULL); | |
| 936 } | |
| 937 } | |
|
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938 } else { |
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939 int maxheight; |
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940 |
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941 /* Figure out how much video memory is available */ |
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942 if ( flags & SDL_DOUBLEBUF ) { |
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943 maxheight = height*2; |
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944 } else { |
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945 maxheight = height; |
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946 } |
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947 if ( vinfo.yres_virtual > maxheight ) { |
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948 vinfo.yres_virtual = maxheight; |
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949 } |
| 0 | 950 } |
| 951 cache_vinfo = vinfo; | |
| 952 #ifdef FBCON_DEBUG | |
| 953 fprintf(stderr, "Printing actual vinfo:\n"); | |
| 954 print_vinfo(&vinfo); | |
| 955 #endif | |
| 956 Rmask = 0; | |
| 957 for ( i=0; i<vinfo.red.length; ++i ) { | |
| 958 Rmask <<= 1; | |
| 959 Rmask |= (0x00000001<<vinfo.red.offset); | |
| 960 } | |
| 961 Gmask = 0; | |
| 962 for ( i=0; i<vinfo.green.length; ++i ) { | |
| 963 Gmask <<= 1; | |
| 964 Gmask |= (0x00000001<<vinfo.green.offset); | |
| 965 } | |
| 966 Bmask = 0; | |
| 967 for ( i=0; i<vinfo.blue.length; ++i ) { | |
| 968 Bmask <<= 1; | |
| 969 Bmask |= (0x00000001<<vinfo.blue.offset); | |
| 970 } | |
| 971 if ( ! SDL_ReallocFormat(current, vinfo.bits_per_pixel, | |
| 972 Rmask, Gmask, Bmask, 0) ) { | |
| 973 return(NULL); | |
| 974 } | |
| 975 | |
| 976 /* Get the fixed information about the console hardware. | |
| 977 This is necessary since finfo.line_length changes. | |
| 978 */ | |
| 979 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 980 SDL_SetError("Couldn't get console hardware info"); | |
| 981 return(NULL); | |
| 982 } | |
| 983 | |
| 984 /* Save hardware palette, if needed */ | |
| 985 FB_SavePalette(this, &finfo, &vinfo); | |
| 986 | |
| 987 /* Set up the new mode framebuffer */ | |
| 988 current->flags = (SDL_FULLSCREEN|SDL_HWSURFACE); | |
| 989 current->w = vinfo.xres; | |
| 990 current->h = vinfo.yres; | |
| 991 current->pitch = finfo.line_length; | |
| 992 current->pixels = mapped_mem+mapped_offset; | |
| 993 | |
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994 /* Set up the information for hardware surfaces */ |
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995 surfaces_mem = (char *)current->pixels + |
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996 vinfo.yres_virtual*current->pitch; |
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997 surfaces_len = (mapped_memlen-(surfaces_mem-mapped_mem)); |
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998 FB_FreeHWSurfaces(this); |
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999 FB_InitHWSurfaces(this, current, surfaces_mem, surfaces_len); |
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1000 |
| 0 | 1001 /* Let the application know we have a hardware palette */ |
| 1002 switch (finfo.visual) { | |
| 1003 case FB_VISUAL_PSEUDOCOLOR: | |
| 1004 current->flags |= SDL_HWPALETTE; | |
| 1005 break; | |
| 1006 default: | |
| 1007 break; | |
| 1008 } | |
| 1009 | |
| 1010 /* Update for double-buffering, if we can */ | |
| 1011 if ( flags & SDL_DOUBLEBUF ) { | |
| 1012 if ( vinfo.yres_virtual == (height*2) ) { | |
| 1013 current->flags |= SDL_DOUBLEBUF; | |
| 1014 flip_page = 0; | |
| 1015 flip_address[0] = (char *)current->pixels; | |
| 1016 flip_address[1] = (char *)current->pixels+ | |
| 1017 current->h*current->pitch; | |
|
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1018 this->screen = current; |
| 0 | 1019 FB_FlipHWSurface(this, current); |
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1020 this->screen = NULL; |
| 0 | 1021 } |
| 1022 } | |
| 1023 | |
| 1024 /* Set the update rectangle function */ | |
| 1025 this->UpdateRects = FB_DirectUpdate; | |
| 1026 | |
| 1027 /* We're done */ | |
| 1028 return(current); | |
| 1029 } | |
| 1030 | |
| 1031 #ifdef FBCON_DEBUG | |
| 1032 void FB_DumpHWSurfaces(_THIS) | |
| 1033 { | |
| 1034 vidmem_bucket *bucket; | |
| 1035 | |
| 1036 printf("Memory left: %d (%d total)\n", surfaces_memleft, surfaces_memtotal); | |
| 1037 printf("\n"); | |
| 1038 printf(" Base Size\n"); | |
| 1039 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 1040 printf("Bucket: %p, %d (%s)\n", bucket->base, bucket->size, bucket->used ? "used" : "free"); | |
| 1041 if ( bucket->prev ) { | |
| 1042 if ( bucket->base != bucket->prev->base+bucket->prev->size ) { | |
| 1043 printf("Warning, corrupt bucket list! (prev)\n"); | |
| 1044 } | |
| 1045 } else { | |
| 1046 if ( bucket != &surfaces ) { | |
| 1047 printf("Warning, corrupt bucket list! (!prev)\n"); | |
| 1048 } | |
| 1049 } | |
| 1050 if ( bucket->next ) { | |
| 1051 if ( bucket->next->base != bucket->base+bucket->size ) { | |
| 1052 printf("Warning, corrupt bucket list! (next)\n"); | |
| 1053 } | |
| 1054 } | |
| 1055 } | |
| 1056 printf("\n"); | |
| 1057 } | |
| 1058 #endif | |
| 1059 | |
|
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1060 static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size) |
| 0 | 1061 { |
|
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1062 vidmem_bucket *bucket; |
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1063 |
| 0 | 1064 surfaces_memtotal = size; |
| 1065 surfaces_memleft = size; | |
|
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1066 |
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1067 if ( surfaces_memleft > 0 ) { |
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1068 bucket = (vidmem_bucket *)malloc(sizeof(*bucket)); |
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1069 if ( bucket == NULL ) { |
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1070 SDL_OutOfMemory(); |
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1071 return(-1); |
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1072 } |
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1073 bucket->prev = &surfaces; |
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1074 bucket->used = 0; |
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1075 bucket->dirty = 0; |
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1076 bucket->base = base; |
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1077 bucket->size = size; |
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1078 bucket->next = NULL; |
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1079 } else { |
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1080 bucket = NULL; |
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1081 } |
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1082 |
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1083 surfaces.prev = NULL; |
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1084 surfaces.used = 1; |
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1085 surfaces.dirty = 0; |
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1086 surfaces.base = screen->pixels; |
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1087 surfaces.size = (unsigned int)((long)base - (long)surfaces.base); |
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1088 surfaces.next = bucket; |
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1089 screen->hwdata = (struct private_hwdata *)&surfaces; |
| 0 | 1090 return(0); |
| 1091 } | |
| 1092 static void FB_FreeHWSurfaces(_THIS) | |
| 1093 { | |
| 1094 vidmem_bucket *bucket, *freeable; | |
| 1095 | |
| 1096 bucket = surfaces.next; | |
| 1097 while ( bucket ) { | |
| 1098 freeable = bucket; | |
| 1099 bucket = bucket->next; | |
| 1100 free(freeable); | |
| 1101 } | |
| 1102 surfaces.next = NULL; | |
| 1103 } | |
| 1104 | |
| 1105 static int FB_AllocHWSurface(_THIS, SDL_Surface *surface) | |
| 1106 { | |
| 1107 vidmem_bucket *bucket; | |
| 1108 int size; | |
| 1109 int extra; | |
| 1110 | |
| 1111 /* Temporarily, we only allow surfaces the same width as display. | |
| 1112 Some blitters require the pitch between two hardware surfaces | |
| 1113 to be the same. Others have interesting alignment restrictions. | |
| 1114 Until someone who knows these details looks at the code... | |
| 1115 */ | |
| 1116 if ( surface->pitch > SDL_VideoSurface->pitch ) { | |
| 1117 SDL_SetError("Surface requested wider than screen"); | |
| 1118 return(-1); | |
| 1119 } | |
| 1120 surface->pitch = SDL_VideoSurface->pitch; | |
| 1121 size = surface->h * surface->pitch; | |
| 1122 #ifdef FBCON_DEBUG | |
| 1123 fprintf(stderr, "Allocating bucket of %d bytes\n", size); | |
| 1124 #endif | |
| 1125 | |
| 1126 /* Quick check for available mem */ | |
| 1127 if ( size > surfaces_memleft ) { | |
| 1128 SDL_SetError("Not enough video memory"); | |
| 1129 return(-1); | |
| 1130 } | |
| 1131 | |
| 1132 /* Search for an empty bucket big enough */ | |
| 1133 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 1134 if ( ! bucket->used && (size <= bucket->size) ) { | |
| 1135 break; | |
| 1136 } | |
| 1137 } | |
| 1138 if ( bucket == NULL ) { | |
| 1139 SDL_SetError("Video memory too fragmented"); | |
| 1140 return(-1); | |
| 1141 } | |
| 1142 | |
| 1143 /* Create a new bucket for left-over memory */ | |
| 1144 extra = (bucket->size - size); | |
| 1145 if ( extra ) { | |
| 1146 vidmem_bucket *newbucket; | |
| 1147 | |
| 1148 #ifdef FBCON_DEBUG | |
| 1149 fprintf(stderr, "Adding new free bucket of %d bytes\n", extra); | |
| 1150 #endif | |
| 1151 newbucket = (vidmem_bucket *)malloc(sizeof(*newbucket)); | |
| 1152 if ( newbucket == NULL ) { | |
| 1153 SDL_OutOfMemory(); | |
| 1154 return(-1); | |
| 1155 } | |
| 1156 newbucket->prev = bucket; | |
| 1157 newbucket->used = 0; | |
| 1158 newbucket->base = bucket->base+size; | |
| 1159 newbucket->size = extra; | |
| 1160 newbucket->next = bucket->next; | |
| 1161 if ( bucket->next ) { | |
| 1162 bucket->next->prev = newbucket; | |
| 1163 } | |
| 1164 bucket->next = newbucket; | |
| 1165 } | |
| 1166 | |
| 1167 /* Set the current bucket values and return it! */ | |
| 1168 bucket->used = 1; | |
| 1169 bucket->size = size; | |
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1170 bucket->dirty = 0; |
| 0 | 1171 #ifdef FBCON_DEBUG |
| 1172 fprintf(stderr, "Allocated %d bytes at %p\n", bucket->size, bucket->base); | |
| 1173 #endif | |
| 1174 surfaces_memleft -= size; | |
| 1175 surface->flags |= SDL_HWSURFACE; | |
| 1176 surface->pixels = bucket->base; | |
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1177 surface->hwdata = (struct private_hwdata *)bucket; |
| 0 | 1178 return(0); |
| 1179 } | |
| 1180 static void FB_FreeHWSurface(_THIS, SDL_Surface *surface) | |
| 1181 { | |
| 1182 vidmem_bucket *bucket, *freeable; | |
| 1183 | |
| 1184 /* Look for the bucket in the current list */ | |
| 1185 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
|
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1186 if ( bucket == (vidmem_bucket *)surface->hwdata ) { |
| 0 | 1187 break; |
| 1188 } | |
| 1189 } | |
|
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1190 if ( bucket && bucket->used ) { |
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1191 /* Add the memory back to the total */ |
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1192 #ifdef DGA_DEBUG |
| 0 | 1193 printf("Freeing bucket of %d bytes\n", bucket->size); |
| 1194 #endif | |
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1195 surfaces_memleft += bucket->size; |
| 0 | 1196 |
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1197 /* Can we merge the space with surrounding buckets? */ |
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1198 bucket->used = 0; |
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1199 if ( bucket->next && ! bucket->next->used ) { |
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1200 #ifdef DGA_DEBUG |
| 0 | 1201 printf("Merging with next bucket, for %d total bytes\n", bucket->size+bucket->next->size); |
| 1202 #endif | |
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1203 freeable = bucket->next; |
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1204 bucket->size += bucket->next->size; |
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1205 bucket->next = bucket->next->next; |
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1206 if ( bucket->next ) { |
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1207 bucket->next->prev = bucket; |
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1208 } |
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1209 free(freeable); |
| 0 | 1210 } |
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1211 if ( bucket->prev && ! bucket->prev->used ) { |
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1212 #ifdef DGA_DEBUG |
| 0 | 1213 printf("Merging with previous bucket, for %d total bytes\n", bucket->prev->size+bucket->size); |
| 1214 #endif | |
|
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1215 freeable = bucket; |
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1216 bucket->prev->size += bucket->size; |
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1217 bucket->prev->next = bucket->next; |
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1218 if ( bucket->next ) { |
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1219 bucket->next->prev = bucket->prev; |
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1220 } |
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1221 free(freeable); |
| 0 | 1222 } |
| 1223 } | |
| 1224 surface->pixels = NULL; | |
|
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1225 surface->hwdata = NULL; |
| 0 | 1226 } |
| 1227 static int FB_LockHWSurface(_THIS, SDL_Surface *surface) | |
| 1228 { | |
|
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1229 if ( surface == this->screen ) { |
| 0 | 1230 SDL_mutexP(hw_lock); |
|
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1231 if ( FB_IsSurfaceBusy(surface) ) { |
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1232 FB_WaitBusySurfaces(this); |
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1233 } |
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1234 } else { |
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1235 if ( FB_IsSurfaceBusy(surface) ) { |
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1236 FB_WaitBusySurfaces(this); |
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1237 } |
| 0 | 1238 } |
| 1239 return(0); | |
| 1240 } | |
| 1241 static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
| 1242 { | |
|
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1243 if ( surface == this->screen ) { |
| 0 | 1244 SDL_mutexV(hw_lock); |
| 1245 } | |
| 1246 } | |
| 1247 | |
| 1248 static void FB_WaitVBL(_THIS) | |
| 1249 { | |
| 1250 #ifdef FBIOWAITRETRACE /* Heheh, this didn't make it into the main kernel */ | |
| 1251 ioctl(console_fd, FBIOWAITRETRACE, 0); | |
| 1252 #endif | |
| 1253 return; | |
| 1254 } | |
| 1255 | |
|
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1256 static void FB_WaitIdle(_THIS) |
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1257 { |
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1258 return; |
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1259 } |
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1260 |
| 0 | 1261 static int FB_FlipHWSurface(_THIS, SDL_Surface *surface) |
| 1262 { | |
| 1263 /* Wait for vertical retrace and then flip display */ | |
| 1264 cache_vinfo.yoffset = flip_page*surface->h; | |
|
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1265 if ( FB_IsSurfaceBusy(this->screen) ) { |
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1266 FB_WaitBusySurfaces(this); |
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1267 } |
| 0 | 1268 wait_vbl(this); |
| 1269 if ( ioctl(console_fd, FBIOPAN_DISPLAY, &cache_vinfo) < 0 ) { | |
| 1270 SDL_SetError("ioctl(FBIOPAN_DISPLAY) failed"); | |
| 1271 return(-1); | |
| 1272 } | |
| 1273 flip_page = !flip_page; | |
| 1274 | |
| 1275 surface->pixels = flip_address[flip_page]; | |
| 1276 return(0); | |
| 1277 } | |
| 1278 | |
| 1279 static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) | |
| 1280 { | |
| 1281 /* The application is already updating the visible video memory */ | |
| 1282 return; | |
| 1283 } | |
| 1284 | |
| 1285 #ifdef VGA16_FBCON_SUPPORT | |
| 1286 /* Code adapted with thanks from the XFree86 VGA16 driver! :) */ | |
| 1287 #define writeGr(index, value) \ | |
| 1288 outb(index, 0x3CE); \ | |
| 1289 outb(value, 0x3CF); | |
| 1290 #define writeSeq(index, value) \ | |
| 1291 outb(index, 0x3C4); \ | |
| 1292 outb(value, 0x3C5); | |
| 1293 | |
| 1294 static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects) | |
| 1295 { | |
| 1296 SDL_Surface *screen; | |
| 1297 int width, height, FBPitch, left, i, j, SRCPitch, phase; | |
| 1298 register Uint32 m; | |
| 1299 Uint8 s1, s2, s3, s4; | |
| 1300 Uint32 *src, *srcPtr; | |
| 1301 Uint8 *dst, *dstPtr; | |
| 1302 | |
| 1303 screen = this->screen; | |
| 1304 FBPitch = screen->w >> 3; | |
| 1305 SRCPitch = screen->pitch >> 2; | |
| 1306 | |
| 1307 writeGr(0x03, 0x00); | |
| 1308 writeGr(0x05, 0x00); | |
| 1309 writeGr(0x01, 0x00); | |
| 1310 writeGr(0x08, 0xFF); | |
| 1311 | |
| 1312 while(numrects--) { | |
| 1313 left = rects->x & ~7; | |
| 1314 width = (rects->w + 7) >> 3; | |
| 1315 height = rects->h; | |
| 1316 src = (Uint32*)screen->pixels + (rects->y * SRCPitch) + (left >> 2); | |
| 1317 dst = (Uint8*)mapped_mem + (rects->y * FBPitch) + (left >> 3); | |
| 1318 | |
| 1319 if((phase = (long)dst & 3L)) { | |
| 1320 phase = 4 - phase; | |
| 1321 if(phase > width) phase = width; | |
| 1322 width -= phase; | |
| 1323 } | |
| 1324 | |
| 1325 while(height--) { | |
| 1326 writeSeq(0x02, 1 << 0); | |
| 1327 dstPtr = dst; | |
| 1328 srcPtr = src; | |
| 1329 i = width; | |
| 1330 j = phase; | |
| 1331 while(j--) { | |
| 1332 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1333 *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1334 srcPtr += 2; | |
| 1335 } | |
| 1336 while(i >= 4) { | |
| 1337 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1338 s1 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1339 m = (srcPtr[3] & 0x01010101) | ((srcPtr[2] & 0x01010101) << 4); | |
| 1340 s2 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1341 m = (srcPtr[5] & 0x01010101) | ((srcPtr[4] & 0x01010101) << 4); | |
| 1342 s3 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1343 m = (srcPtr[7] & 0x01010101) | ((srcPtr[6] & 0x01010101) << 4); | |
| 1344 s4 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1345 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1346 srcPtr += 8; | |
| 1347 dstPtr += 4; | |
| 1348 i -= 4; | |
| 1349 } | |
| 1350 while(i--) { | |
| 1351 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1352 *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1353 srcPtr += 2; | |
| 1354 } | |
| 1355 | |
| 1356 writeSeq(0x02, 1 << 1); | |
| 1357 dstPtr = dst; | |
| 1358 srcPtr = src; | |
| 1359 i = width; | |
| 1360 j = phase; | |
| 1361 while(j--) { | |
| 1362 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1363 *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1364 srcPtr += 2; | |
| 1365 } | |
| 1366 while(i >= 4) { | |
| 1367 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1368 s1 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1369 m = (srcPtr[3] & 0x02020202) | ((srcPtr[2] & 0x02020202) << 4); | |
| 1370 s2 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1371 m = (srcPtr[5] & 0x02020202) | ((srcPtr[4] & 0x02020202) << 4); | |
| 1372 s3 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1373 m = (srcPtr[7] & 0x02020202) | ((srcPtr[6] & 0x02020202) << 4); | |
| 1374 s4 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1375 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1376 srcPtr += 8; | |
| 1377 dstPtr += 4; | |
| 1378 i -= 4; | |
| 1379 } | |
| 1380 while(i--) { | |
| 1381 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1382 *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1383 srcPtr += 2; | |
| 1384 } | |
| 1385 | |
| 1386 writeSeq(0x02, 1 << 2); | |
| 1387 dstPtr = dst; | |
| 1388 srcPtr = src; | |
| 1389 i = width; | |
| 1390 j = phase; | |
| 1391 while(j--) { | |
| 1392 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1393 *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1394 srcPtr += 2; | |
| 1395 } | |
| 1396 while(i >= 4) { | |
| 1397 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1398 s1 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1399 m = (srcPtr[3] & 0x04040404) | ((srcPtr[2] & 0x04040404) << 4); | |
| 1400 s2 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1401 m = (srcPtr[5] & 0x04040404) | ((srcPtr[4] & 0x04040404) << 4); | |
| 1402 s3 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1403 m = (srcPtr[7] & 0x04040404) | ((srcPtr[6] & 0x04040404) << 4); | |
| 1404 s4 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1405 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1406 srcPtr += 8; | |
| 1407 dstPtr += 4; | |
| 1408 i -= 4; | |
| 1409 } | |
| 1410 while(i--) { | |
| 1411 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1412 *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1413 srcPtr += 2; | |
| 1414 } | |
| 1415 | |
| 1416 writeSeq(0x02, 1 << 3); | |
| 1417 dstPtr = dst; | |
| 1418 srcPtr = src; | |
| 1419 i = width; | |
| 1420 j = phase; | |
| 1421 while(j--) { | |
| 1422 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1423 *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1424 srcPtr += 2; | |
| 1425 } | |
| 1426 while(i >= 4) { | |
| 1427 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1428 s1 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1429 m = (srcPtr[3] & 0x08080808) | ((srcPtr[2] & 0x08080808) << 4); | |
| 1430 s2 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1431 m = (srcPtr[5] & 0x08080808) | ((srcPtr[4] & 0x08080808) << 4); | |
| 1432 s3 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1433 m = (srcPtr[7] & 0x08080808) | ((srcPtr[6] & 0x08080808) << 4); | |
| 1434 s4 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1435 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1436 srcPtr += 8; | |
| 1437 dstPtr += 4; | |
| 1438 i -= 4; | |
| 1439 } | |
| 1440 while(i--) { | |
| 1441 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1442 *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1443 srcPtr += 2; | |
| 1444 } | |
| 1445 | |
| 1446 dst += FBPitch; | |
| 1447 src += SRCPitch; | |
| 1448 } | |
| 1449 rects++; | |
| 1450 } | |
| 1451 } | |
| 1452 #endif /* VGA16_FBCON_SUPPORT */ | |
| 1453 | |
| 1454 void FB_SavePaletteTo(_THIS, int palette_len, __u16 *area) | |
| 1455 { | |
| 1456 struct fb_cmap cmap; | |
| 1457 | |
| 1458 cmap.start = 0; | |
| 1459 cmap.len = palette_len; | |
| 1460 cmap.red = &area[0*palette_len]; | |
| 1461 cmap.green = &area[1*palette_len]; | |
| 1462 cmap.blue = &area[2*palette_len]; | |
| 1463 cmap.transp = NULL; | |
| 1464 ioctl(console_fd, FBIOGETCMAP, &cmap); | |
| 1465 } | |
| 1466 | |
| 1467 void FB_RestorePaletteFrom(_THIS, int palette_len, __u16 *area) | |
| 1468 { | |
| 1469 struct fb_cmap cmap; | |
| 1470 | |
| 1471 cmap.start = 0; | |
| 1472 cmap.len = palette_len; | |
| 1473 cmap.red = &area[0*palette_len]; | |
| 1474 cmap.green = &area[1*palette_len]; | |
| 1475 cmap.blue = &area[2*palette_len]; | |
| 1476 cmap.transp = NULL; | |
| 1477 ioctl(console_fd, FBIOPUTCMAP, &cmap); | |
| 1478 } | |
| 1479 | |
| 1480 static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, | |
| 1481 struct fb_var_screeninfo *vinfo) | |
| 1482 { | |
| 1483 int i; | |
| 1484 | |
| 1485 /* Save hardware palette, if needed */ | |
| 1486 if ( finfo->visual == FB_VISUAL_PSEUDOCOLOR ) { | |
| 1487 saved_cmaplen = 1<<vinfo->bits_per_pixel; | |
| 1488 saved_cmap=(__u16 *)malloc(3*saved_cmaplen*sizeof(*saved_cmap)); | |
| 1489 if ( saved_cmap != NULL ) { | |
| 1490 FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); | |
| 1491 } | |
| 1492 } | |
| 1493 | |
| 1494 /* Added support for FB_VISUAL_DIRECTCOLOR. | |
| 1495 With this mode pixel information is passed through the palette... | |
| 1496 Neat fading and gamma correction effects can be had by simply | |
| 1497 fooling around with the palette instead of changing the pixel | |
| 1498 values themselves... Very neat! | |
| 1499 | |
| 1500 Adam Meyerowitz 1/19/2000 | |
| 1501 ameyerow@optonline.com | |
| 1502 */ | |
| 1503 if ( finfo->visual == FB_VISUAL_DIRECTCOLOR ) { | |
| 1504 __u16 new_entries[3*256]; | |
| 1505 | |
| 1506 /* Save the colormap */ | |
| 1507 saved_cmaplen = 256; | |
| 1508 saved_cmap=(__u16 *)malloc(3*saved_cmaplen*sizeof(*saved_cmap)); | |
| 1509 if ( saved_cmap != NULL ) { | |
| 1510 FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); | |
| 1511 } | |
| 1512 | |
| 1513 /* Allocate new identity colormap */ | |
| 1514 for ( i=0; i<256; ++i ) { | |
| 1515 new_entries[(0*256)+i] = | |
| 1516 new_entries[(1*256)+i] = | |
| 1517 new_entries[(2*256)+i] = (i<<8)|i; | |
| 1518 } | |
| 1519 FB_RestorePaletteFrom(this, 256, new_entries); | |
| 1520 } | |
| 1521 } | |
| 1522 | |
| 1523 static void FB_RestorePalette(_THIS) | |
| 1524 { | |
| 1525 /* Restore the original palette */ | |
| 1526 if ( saved_cmap ) { | |
| 1527 FB_RestorePaletteFrom(this, saved_cmaplen, saved_cmap); | |
| 1528 free(saved_cmap); | |
| 1529 saved_cmap = NULL; | |
| 1530 } | |
| 1531 } | |
| 1532 | |
| 1533 static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | |
| 1534 { | |
| 1535 int i; | |
| 1536 __u16 r[256]; | |
| 1537 __u16 g[256]; | |
| 1538 __u16 b[256]; | |
| 1539 struct fb_cmap cmap; | |
| 1540 | |
| 1541 /* Set up the colormap */ | |
| 1542 for (i = 0; i < ncolors; i++) { | |
| 1543 r[i] = colors[i].r << 8; | |
| 1544 g[i] = colors[i].g << 8; | |
| 1545 b[i] = colors[i].b << 8; | |
| 1546 } | |
| 1547 cmap.start = firstcolor; | |
| 1548 cmap.len = ncolors; | |
| 1549 cmap.red = r; | |
| 1550 cmap.green = g; | |
| 1551 cmap.blue = b; | |
| 1552 cmap.transp = NULL; | |
| 1553 | |
| 1554 if( (ioctl(console_fd, FBIOPUTCMAP, &cmap) < 0) || | |
| 1555 !(this->screen->flags & SDL_HWPALETTE) ) { | |
| 1556 colors = this->screen->format->palette->colors; | |
| 1557 ncolors = this->screen->format->palette->ncolors; | |
| 1558 cmap.start = 0; | |
| 1559 cmap.len = ncolors; | |
| 1560 memset(r, 0, sizeof(r)); | |
| 1561 memset(g, 0, sizeof(g)); | |
| 1562 memset(b, 0, sizeof(b)); | |
| 1563 if ( ioctl(console_fd, FBIOGETCMAP, &cmap) == 0 ) { | |
| 1564 for ( i=ncolors-1; i>=0; --i ) { | |
| 1565 colors[i].r = (r[i]>>8); | |
| 1566 colors[i].g = (g[i]>>8); | |
| 1567 colors[i].b = (b[i]>>8); | |
| 1568 } | |
| 1569 } | |
| 1570 return(0); | |
| 1571 } | |
| 1572 return(1); | |
| 1573 } | |
| 1574 | |
| 1575 /* Note: If we are terminated, this could be called in the middle of | |
| 1576 another SDL video routine -- notably UpdateRects. | |
| 1577 */ | |
| 1578 static void FB_VideoQuit(_THIS) | |
| 1579 { | |
| 1580 int i, j; | |
| 1581 | |
| 1582 if ( this->screen ) { | |
| 1583 /* Clear screen and tell SDL not to free the pixels */ | |
| 1584 if ( this->screen->pixels && FB_InGraphicsMode(this) ) { | |
|
1036
50f4e7e4d117
[SDL] [PATCH] fix FB_VideoQuit for ia64
Sam Lantinga <slouken@libsdl.org>
parents:
941
diff
changeset
|
1585 #if defined(__powerpc__) || defined(__ia64__) /* SIGBUS when using memset() ?? */ |
| 0 | 1586 Uint8 *rowp = (Uint8 *)this->screen->pixels; |
| 1587 int left = this->screen->pitch*this->screen->h; | |
| 1588 while ( left-- ) { *rowp++ = 0; } | |
| 1589 #else | |
| 1590 memset(this->screen->pixels,0,this->screen->h*this->screen->pitch); | |
| 1591 #endif | |
| 1592 } | |
| 1593 /* This test fails when using the VGA16 shadow memory */ | |
| 1594 if ( ((char *)this->screen->pixels >= mapped_mem) && | |
| 1595 ((char *)this->screen->pixels < (mapped_mem+mapped_memlen)) ) { | |
| 1596 this->screen->pixels = NULL; | |
| 1597 } | |
| 1598 } | |
| 1599 | |
| 1600 /* Clear the lock mutex */ | |
| 1601 if ( hw_lock ) { | |
| 1602 SDL_DestroyMutex(hw_lock); | |
| 1603 hw_lock = NULL; | |
| 1604 } | |
| 1605 | |
| 1606 /* Clean up defined video modes */ | |
| 1607 for ( i=0; i<NUM_MODELISTS; ++i ) { | |
| 1608 if ( SDL_modelist[i] != NULL ) { | |
| 1609 for ( j=0; SDL_modelist[i][j]; ++j ) { | |
| 1610 free(SDL_modelist[i][j]); | |
| 1611 } | |
| 1612 free(SDL_modelist[i]); | |
| 1613 SDL_modelist[i] = NULL; | |
| 1614 } | |
| 1615 } | |
| 1616 | |
| 1617 /* Clean up the memory bucket list */ | |
| 1618 FB_FreeHWSurfaces(this); | |
| 1619 | |
| 1620 /* Close console and input file descriptors */ | |
| 1621 if ( console_fd > 0 ) { | |
| 1622 /* Unmap the video framebuffer and I/O registers */ | |
| 1623 if ( mapped_mem ) { | |
| 1624 munmap(mapped_mem, mapped_memlen); | |
| 1625 mapped_mem = NULL; | |
| 1626 } | |
| 1627 if ( mapped_io ) { | |
| 1628 munmap(mapped_io, mapped_iolen); | |
| 1629 mapped_io = NULL; | |
| 1630 } | |
| 1631 | |
| 1632 /* Restore the original video mode and palette */ | |
| 1633 if ( FB_InGraphicsMode(this) ) { | |
| 1634 FB_RestorePalette(this); | |
| 1635 ioctl(console_fd, FBIOPUT_VSCREENINFO, &saved_vinfo); | |
| 1636 } | |
| 1637 | |
| 1638 /* We're all done with the framebuffer */ | |
| 1639 close(console_fd); | |
| 1640 console_fd = -1; | |
| 1641 } | |
| 1642 FB_CloseMouse(this); | |
| 1643 FB_CloseKeyboard(this); | |
| 1644 } |