Mercurial > sdl-ios-xcode
annotate src/video/fbcon/SDL_fbvideo.c @ 1659:14717b52abc0 SDL-1.3
Merge trunk-1.3-3
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Wed, 17 May 2006 08:18:28 +0000 |
| parents | 980d2a0dc2a3 |
| children | 782fd950bd46 |
| 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 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
| 24 /* Framebuffer console based SDL video driver implementation. | |
| 25 */ | |
| 26 | |
| 27 #include <stdio.h> | |
| 28 #include <fcntl.h> | |
| 29 #include <unistd.h> | |
| 30 #include <sys/ioctl.h> | |
| 31 #include <sys/mman.h> | |
| 32 #include <asm/page.h> /* For definition of PAGE_SIZE */ | |
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33 #include <linux/vt.h> |
| 0 | 34 |
| 35 #include "SDL_video.h" | |
| 36 #include "SDL_mouse.h" | |
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37 #include "../SDL_sysvideo.h" |
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38 #include "../SDL_pixels_c.h" |
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39 #include "../../events/SDL_events_c.h" |
| 0 | 40 #include "SDL_fbvideo.h" |
| 41 #include "SDL_fbmouse_c.h" | |
| 42 #include "SDL_fbevents_c.h" | |
| 43 #include "SDL_fb3dfx.h" | |
| 44 #include "SDL_fbmatrox.h" | |
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45 #include "SDL_fbriva.h" |
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46 |
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47 /*#define FBCON_DEBUG*/ |
| 0 | 48 |
| 49 #if defined(i386) && defined(FB_TYPE_VGA_PLANES) | |
| 50 #define VGA16_FBCON_SUPPORT | |
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51 #include <sys/io.h> /* For ioperm() */ |
| 0 | 52 #ifndef FB_AUX_VGA_PLANES_VGA4 |
| 53 #define FB_AUX_VGA_PLANES_VGA4 0 | |
| 54 #endif | |
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55 /* |
| 0 | 56 static inline void outb (unsigned char value, unsigned short port) |
| 57 { | |
| 58 __asm__ __volatile__ ("outb %b0,%w1"::"a" (value), "Nd" (port)); | |
| 59 } | |
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60 */ |
| 0 | 61 #endif /* FB_TYPE_VGA_PLANES */ |
| 62 | |
| 63 /* A list of video resolutions that we query for (sorted largest to smallest) */ | |
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64 static const SDL_Rect checkres[] = { |
| 0 | 65 { 0, 0, 1600, 1200 }, /* 16 bpp: 0x11E, or 286 */ |
| 66 { 0, 0, 1408, 1056 }, /* 16 bpp: 0x19A, or 410 */ | |
| 67 { 0, 0, 1280, 1024 }, /* 16 bpp: 0x11A, or 282 */ | |
| 68 { 0, 0, 1152, 864 }, /* 16 bpp: 0x192, or 402 */ | |
| 69 { 0, 0, 1024, 768 }, /* 16 bpp: 0x117, or 279 */ | |
| 70 { 0, 0, 960, 720 }, /* 16 bpp: 0x18A, or 394 */ | |
| 71 { 0, 0, 800, 600 }, /* 16 bpp: 0x114, or 276 */ | |
| 72 { 0, 0, 768, 576 }, /* 16 bpp: 0x182, or 386 */ | |
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73 { 0, 0, 720, 576 }, /* PAL */ |
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74 { 0, 0, 720, 480 }, /* NTSC */ |
| 0 | 75 { 0, 0, 640, 480 }, /* 16 bpp: 0x111, or 273 */ |
| 76 { 0, 0, 640, 400 }, /* 8 bpp: 0x100, or 256 */ | |
| 77 { 0, 0, 512, 384 }, | |
| 78 { 0, 0, 320, 240 }, | |
| 79 { 0, 0, 320, 200 } | |
| 80 }; | |
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81 static const struct { |
| 0 | 82 int xres; |
| 83 int yres; | |
| 84 int pixclock; | |
| 85 int left; | |
| 86 int right; | |
| 87 int upper; | |
| 88 int lower; | |
| 89 int hslen; | |
| 90 int vslen; | |
| 91 int sync; | |
| 92 int vmode; | |
| 93 } vesa_timings[] = { | |
| 94 #ifdef USE_VESA_TIMINGS /* Only tested on Matrox Millenium I */ | |
| 95 { 640, 400, 39771, 48, 16, 39, 8, 96, 2, 2, 0 }, /* 70 Hz */ | |
| 96 { 640, 480, 39683, 48, 16, 33, 10, 96, 2, 0, 0 }, /* 60 Hz */ | |
| 97 { 768, 576, 26101, 144, 16, 28, 6, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 98 { 800, 600, 24038, 144, 24, 28, 8, 112, 6, 0, 0 }, /* 60 Hz */ | |
| 99 { 960, 720, 17686, 144, 24, 28, 8, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 100 { 1024, 768, 15386, 160, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | |
| 101 { 1152, 864, 12286, 192, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | |
| 102 { 1280, 1024, 9369, 224, 32, 32, 4, 136, 4, 0, 0 }, /* 60 Hz */ | |
| 103 { 1408, 1056, 8214, 256, 40, 32, 5, 144, 5, 0, 0 }, /* 60 Hz */ | |
| 104 { 1600, 1200,/*?*/0, 272, 48, 32, 5, 152, 5, 0, 0 }, /* 60 Hz */ | |
| 105 #else | |
| 106 /* You can generate these timings from your XF86Config file using | |
| 107 the 'modeline2fb' perl script included with the fbset package. | |
| 108 These timings were generated for Matrox Millenium I, 15" monitor. | |
| 109 */ | |
| 110 { 320, 200, 79440, 16, 16, 20, 4, 48, 1, 0, 2 }, /* 70 Hz */ | |
| 111 { 320, 240, 63492, 16, 16, 16, 4, 48, 2, 0, 2 }, /* 72 Hz */ | |
| 112 { 512, 384, 49603, 48, 16, 16, 1, 64, 3, 0, 0 }, /* 78 Hz */ | |
| 113 { 640, 400, 31746, 96, 32, 41, 1, 64, 3, 2, 0 }, /* 85 Hz */ | |
| 114 { 640, 480, 31746, 120, 16, 16, 1, 64, 3, 0, 0 }, /* 75 Hz */ | |
| 115 { 768, 576, 26101, 144, 16, 28, 6, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 116 { 800, 600, 20000, 64, 56, 23, 37, 120, 6, 3, 0 }, /* 72 Hz */ | |
| 117 { 960, 720, 17686, 144, 24, 28, 8, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 118 { 1024, 768, 13333, 144, 24, 29, 3, 136, 6, 0, 0 }, /* 70 Hz */ | |
| 119 { 1152, 864, 12286, 192, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | |
| 120 { 1280, 1024, 9369, 224, 32, 32, 4, 136, 4, 0, 0 }, /* 60 Hz */ | |
| 121 { 1408, 1056, 8214, 256, 40, 32, 5, 144, 5, 0, 0 }, /* 60 Hz */ | |
| 122 { 1600, 1200,/*?*/0, 272, 48, 32, 5, 152, 5, 0, 0 }, /* 60 Hz */ | |
| 123 #endif | |
| 124 }; | |
| 125 | |
| 126 /* Initialization/Query functions */ | |
| 127 static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat); | |
| 128 static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); | |
| 129 static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 130 #ifdef VGA16_FBCON_SUPPORT | |
| 131 static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 132 #endif | |
| 133 static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); | |
| 134 static void FB_VideoQuit(_THIS); | |
| 135 | |
| 136 /* Hardware surface functions */ | |
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137 static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size); |
| 0 | 138 static void FB_FreeHWSurfaces(_THIS); |
| 139 static int FB_AllocHWSurface(_THIS, SDL_Surface *surface); | |
| 140 static int FB_LockHWSurface(_THIS, SDL_Surface *surface); | |
| 141 static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface); | |
| 142 static void FB_FreeHWSurface(_THIS, SDL_Surface *surface); | |
| 143 static void FB_WaitVBL(_THIS); | |
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144 static void FB_WaitIdle(_THIS); |
| 0 | 145 static int FB_FlipHWSurface(_THIS, SDL_Surface *surface); |
| 146 | |
| 147 /* Internal palette functions */ | |
| 148 static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, | |
| 149 struct fb_var_screeninfo *vinfo); | |
| 150 static void FB_RestorePalette(_THIS); | |
| 151 | |
| 1659 | 152 /* Small wrapper for mmap() so we can play nicely with no-mmu hosts |
| 153 * (non-mmu hosts disallow the MAP_SHARED flag) */ | |
| 154 | |
| 155 static void *do_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) | |
| 156 { | |
| 157 void *ret; | |
| 158 ret = mmap(start, length, prot, flags, fd, offset); | |
| 159 if ( ret == (char *)-1 && (flags & MAP_SHARED) ) { | |
| 160 ret = mmap(start, length, prot, | |
| 161 (flags & ~MAP_SHARED) | MAP_PRIVATE, fd, offset); | |
| 162 } | |
| 163 return ret; | |
| 164 } | |
| 165 | |
| 0 | 166 /* FB driver bootstrap functions */ |
| 167 | |
| 168 static int FB_Available(void) | |
| 169 { | |
| 1659 | 170 int console = -1; |
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171 /* Added check for /fb/0 (devfs) */ |
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172 /* but - use environment variable first... if it fails, still check defaults */ |
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173 int idx = 0; |
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174 const char *SDL_fbdevs[4] = { NULL, "/dev/fb0", "/dev/fb/0", NULL }; |
| 0 | 175 |
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176 SDL_fbdevs[0] = SDL_getenv("SDL_FBDEV"); |
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177 if( !SDL_fbdevs[0] ) |
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178 idx++; |
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179 for( ; SDL_fbdevs[idx]; idx++ ) |
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180 { |
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181 console = open(SDL_fbdevs[idx], O_RDWR, 0); |
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182 if ( console >= 0 ) { |
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183 close(console); |
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184 break; |
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185 } |
| 0 | 186 } |
| 187 return(console >= 0); | |
| 188 } | |
| 189 | |
| 190 static void FB_DeleteDevice(SDL_VideoDevice *device) | |
| 191 { | |
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192 SDL_free(device->hidden); |
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193 SDL_free(device); |
| 0 | 194 } |
| 195 | |
| 196 static SDL_VideoDevice *FB_CreateDevice(int devindex) | |
| 197 { | |
| 198 SDL_VideoDevice *this; | |
| 199 | |
| 200 /* Initialize all variables that we clean on shutdown */ | |
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201 this = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); |
| 0 | 202 if ( this ) { |
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203 SDL_memset(this, 0, (sizeof *this)); |
| 0 | 204 this->hidden = (struct SDL_PrivateVideoData *) |
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205 SDL_malloc((sizeof *this->hidden)); |
| 0 | 206 } |
| 207 if ( (this == NULL) || (this->hidden == NULL) ) { | |
| 208 SDL_OutOfMemory(); | |
| 209 if ( this ) { | |
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210 SDL_free(this); |
| 0 | 211 } |
| 212 return(0); | |
| 213 } | |
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214 SDL_memset(this->hidden, 0, (sizeof *this->hidden)); |
| 0 | 215 wait_vbl = FB_WaitVBL; |
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216 wait_idle = FB_WaitIdle; |
| 0 | 217 mouse_fd = -1; |
| 218 keyboard_fd = -1; | |
| 219 | |
| 220 /* Set the function pointers */ | |
| 221 this->VideoInit = FB_VideoInit; | |
| 222 this->ListModes = FB_ListModes; | |
| 223 this->SetVideoMode = FB_SetVideoMode; | |
| 224 this->SetColors = FB_SetColors; | |
| 225 this->UpdateRects = NULL; | |
| 226 this->VideoQuit = FB_VideoQuit; | |
| 227 this->AllocHWSurface = FB_AllocHWSurface; | |
| 228 this->CheckHWBlit = NULL; | |
| 229 this->FillHWRect = NULL; | |
| 230 this->SetHWColorKey = NULL; | |
| 231 this->SetHWAlpha = NULL; | |
| 232 this->LockHWSurface = FB_LockHWSurface; | |
| 233 this->UnlockHWSurface = FB_UnlockHWSurface; | |
| 234 this->FlipHWSurface = FB_FlipHWSurface; | |
| 235 this->FreeHWSurface = FB_FreeHWSurface; | |
| 236 this->SetCaption = NULL; | |
| 237 this->SetIcon = NULL; | |
| 238 this->IconifyWindow = NULL; | |
| 239 this->GrabInput = NULL; | |
| 240 this->GetWMInfo = NULL; | |
| 241 this->InitOSKeymap = FB_InitOSKeymap; | |
| 242 this->PumpEvents = FB_PumpEvents; | |
| 243 | |
| 244 this->free = FB_DeleteDevice; | |
| 245 | |
| 246 return this; | |
| 247 } | |
| 248 | |
| 249 VideoBootStrap FBCON_bootstrap = { | |
| 250 "fbcon", "Linux Framebuffer Console", | |
| 251 FB_Available, FB_CreateDevice | |
| 252 }; | |
| 253 | |
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254 #define FB_MODES_DB "/etc/fb.modes" |
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255 |
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256 static int read_fbmodes_line(FILE*f, char* line, int length) |
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257 { |
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258 int blank; |
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259 char* c; |
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260 int i; |
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261 |
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262 blank=0; |
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263 /* find a relevant line */ |
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264 do |
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265 { |
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266 if (fgets(line,length,f)<=0) |
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267 return 0; |
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268 c=line; |
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269 while(((*c=='\t')||(*c==' '))&&(*c!=0)) |
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270 c++; |
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271 |
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272 if ((*c=='\n')||(*c=='#')||(*c==0)) |
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273 blank=1; |
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274 else |
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275 blank=0; |
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276 } |
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277 while(blank); |
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278 /* remove whitespace at the begining of the string */ |
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279 i=0; |
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280 do |
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281 { |
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282 line[i]=c[i]; |
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283 i++; |
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284 } |
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285 while(c[i]!=0); |
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286 return 1; |
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287 } |
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288 |
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289 static int read_fbmodes_mode(FILE *f, struct fb_var_screeninfo *vinfo) |
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290 { |
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291 char line[1024]; |
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292 char option[256]; |
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293 |
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294 /* Find a "geometry" */ |
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295 do { |
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296 if (read_fbmodes_line(f, line, sizeof(line))==0) |
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297 return 0; |
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298 if (SDL_strncmp(line,"geometry",8)==0) |
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299 break; |
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300 } |
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301 while(1); |
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302 |
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303 SDL_sscanf(line, "geometry %d %d %d %d %d", &vinfo->xres, &vinfo->yres, |
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304 &vinfo->xres_virtual, &vinfo->yres_virtual, &vinfo->bits_per_pixel); |
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305 if (read_fbmodes_line(f, line, sizeof(line))==0) |
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306 return 0; |
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307 |
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308 SDL_sscanf(line, "timings %d %d %d %d %d %d %d", &vinfo->pixclock, |
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309 &vinfo->left_margin, &vinfo->right_margin, &vinfo->upper_margin, |
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310 &vinfo->lower_margin, &vinfo->hsync_len, &vinfo->vsync_len); |
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311 |
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312 vinfo->sync=0; |
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313 vinfo->vmode=FB_VMODE_NONINTERLACED; |
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314 |
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315 /* Parse misc options */ |
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316 do { |
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317 if (read_fbmodes_line(f, line, sizeof(line))==0) |
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318 return 0; |
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319 |
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320 if (SDL_strncmp(line,"hsync",5)==0) { |
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321 SDL_sscanf(line,"hsync %s",option); |
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322 if (SDL_strncmp(option,"high",4)==0) |
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323 vinfo->sync |= FB_SYNC_HOR_HIGH_ACT; |
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324 } |
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325 else if (SDL_strncmp(line,"vsync",5)==0) { |
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326 SDL_sscanf(line,"vsync %s",option); |
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327 if (SDL_strncmp(option,"high",4)==0) |
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328 vinfo->sync |= FB_SYNC_VERT_HIGH_ACT; |
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329 } |
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330 else if (SDL_strncmp(line,"csync",5)==0) { |
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331 SDL_sscanf(line,"csync %s",option); |
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332 if (SDL_strncmp(option,"high",4)==0) |
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333 vinfo->sync |= FB_SYNC_COMP_HIGH_ACT; |
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334 } |
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335 else if (SDL_strncmp(line,"extsync",5)==0) { |
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336 SDL_sscanf(line,"extsync %s",option); |
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337 if (SDL_strncmp(option,"true",4)==0) |
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338 vinfo->sync |= FB_SYNC_EXT; |
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339 } |
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340 else if (SDL_strncmp(line,"laced",5)==0) { |
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341 SDL_sscanf(line,"laced %s",option); |
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342 if (SDL_strncmp(option,"true",4)==0) |
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343 vinfo->vmode |= FB_VMODE_INTERLACED; |
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344 } |
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345 else if (SDL_strncmp(line,"double",6)==0) { |
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346 SDL_sscanf(line,"double %s",option); |
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347 if (SDL_strncmp(option,"true",4)==0) |
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348 vinfo->vmode |= FB_VMODE_DOUBLE; |
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349 } |
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350 } |
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351 while(SDL_strncmp(line,"endmode",7)!=0); |
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352 |
|
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353 return 1; |
|
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354 } |
|
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Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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355 |
| 0 | 356 static int FB_CheckMode(_THIS, struct fb_var_screeninfo *vinfo, |
| 357 int index, unsigned int *w, unsigned int *h) | |
| 358 { | |
| 359 int mode_okay; | |
| 360 | |
| 361 mode_okay = 0; | |
| 362 vinfo->bits_per_pixel = (index+1)*8; | |
| 363 vinfo->xres = *w; | |
| 364 vinfo->xres_virtual = *w; | |
| 365 vinfo->yres = *h; | |
| 366 vinfo->yres_virtual = *h; | |
| 367 vinfo->activate = FB_ACTIVATE_TEST; | |
| 368 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, vinfo) == 0 ) { | |
| 369 #ifdef FBCON_DEBUG | |
| 370 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); | |
| 371 #endif | |
| 372 if ( (((vinfo->bits_per_pixel+7)/8)-1) == index ) { | |
| 373 *w = vinfo->xres; | |
| 374 *h = vinfo->yres; | |
| 375 mode_okay = 1; | |
| 376 } | |
| 377 } | |
| 378 return mode_okay; | |
| 379 } | |
| 380 | |
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381 static int FB_AddMode(_THIS, int index, unsigned int w, unsigned int h, int check_timings) |
| 0 | 382 { |
| 383 SDL_Rect *mode; | |
| 384 int i; | |
| 385 int next_mode; | |
| 386 | |
| 387 /* Check to see if we already have this mode */ | |
| 388 if ( SDL_nummodes[index] > 0 ) { | |
| 389 mode = SDL_modelist[index][SDL_nummodes[index]-1]; | |
| 390 if ( (mode->w == w) && (mode->h == h) ) { | |
| 391 #ifdef FBCON_DEBUG | |
| 392 fprintf(stderr, "We already have mode %dx%d at %d bytes per pixel\n", w, h, index+1); | |
| 393 #endif | |
| 394 return(0); | |
| 395 } | |
| 396 } | |
| 397 | |
| 398 /* Only allow a mode if we have a valid timing for it */ | |
|
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399 if ( check_timings ) { |
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400 int found_timing = 0; |
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401 for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { |
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402 if ( (w == vesa_timings[i].xres) && |
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403 (h == vesa_timings[i].yres) && vesa_timings[i].pixclock ) { |
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404 found_timing = 1; |
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405 break; |
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406 } |
| 0 | 407 } |
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408 if ( !found_timing ) { |
| 0 | 409 #ifdef FBCON_DEBUG |
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410 fprintf(stderr, "No valid timing line for mode %dx%d\n", w, h); |
| 0 | 411 #endif |
|
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412 return(0); |
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413 } |
| 0 | 414 } |
| 415 | |
| 416 /* Set up the new video mode rectangle */ | |
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417 mode = (SDL_Rect *)SDL_malloc(sizeof *mode); |
| 0 | 418 if ( mode == NULL ) { |
| 419 SDL_OutOfMemory(); | |
| 420 return(-1); | |
| 421 } | |
| 422 mode->x = 0; | |
| 423 mode->y = 0; | |
| 424 mode->w = w; | |
| 425 mode->h = h; | |
| 426 #ifdef FBCON_DEBUG | |
| 427 fprintf(stderr, "Adding mode %dx%d at %d bytes per pixel\n", w, h, index+1); | |
| 428 #endif | |
| 429 | |
| 430 /* Allocate the new list of modes, and fill in the new mode */ | |
| 431 next_mode = SDL_nummodes[index]; | |
| 432 SDL_modelist[index] = (SDL_Rect **) | |
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433 SDL_realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *)); |
| 0 | 434 if ( SDL_modelist[index] == NULL ) { |
| 435 SDL_OutOfMemory(); | |
| 436 SDL_nummodes[index] = 0; | |
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437 SDL_free(mode); |
| 0 | 438 return(-1); |
| 439 } | |
| 440 SDL_modelist[index][next_mode] = mode; | |
| 441 SDL_modelist[index][next_mode+1] = NULL; | |
| 442 SDL_nummodes[index]++; | |
| 443 | |
| 444 return(0); | |
| 445 } | |
| 446 | |
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447 static int cmpmodes(const void *va, const void *vb) |
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448 { |
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449 const SDL_Rect *a = *(const SDL_Rect**)va; |
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450 const SDL_Rect *b = *(const SDL_Rect**)vb; |
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451 if ( a->h == b->h ) |
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452 return b->w - a->w; |
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453 else |
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454 return b->h - a->h; |
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455 } |
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456 |
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457 static void FB_SortModes(_THIS) |
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458 { |
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459 int i; |
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460 for ( i=0; i<NUM_MODELISTS; ++i ) { |
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461 if ( SDL_nummodes[i] > 0 ) { |
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462 SDL_qsort(SDL_modelist[i], SDL_nummodes[i], sizeof *SDL_modelist[i], cmpmodes); |
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463 } |
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464 } |
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465 } |
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466 |
| 0 | 467 static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat) |
| 468 { | |
| 469 struct fb_fix_screeninfo finfo; | |
| 470 struct fb_var_screeninfo vinfo; | |
| 471 int i, j; | |
| 472 int current_index; | |
| 473 unsigned int current_w; | |
| 474 unsigned int current_h; | |
| 475 const char *SDL_fbdev; | |
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476 FILE *modesdb; |
| 0 | 477 |
| 478 /* Initialize the library */ | |
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479 SDL_fbdev = SDL_getenv("SDL_FBDEV"); |
| 0 | 480 if ( SDL_fbdev == NULL ) { |
| 481 SDL_fbdev = "/dev/fb0"; | |
| 482 } | |
| 483 console_fd = open(SDL_fbdev, O_RDWR, 0); | |
| 484 if ( console_fd < 0 ) { | |
| 485 SDL_SetError("Unable to open %s", SDL_fbdev); | |
| 486 return(-1); | |
| 487 } | |
| 488 | |
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489 #if !SDL_THREADS_DISABLED |
| 0 | 490 /* Create the hardware surface lock mutex */ |
| 491 hw_lock = SDL_CreateMutex(); | |
| 492 if ( hw_lock == NULL ) { | |
| 493 SDL_SetError("Unable to create lock mutex"); | |
| 494 FB_VideoQuit(this); | |
| 495 return(-1); | |
| 496 } | |
| 497 #endif | |
| 498 | |
| 499 /* Get the type of video hardware */ | |
| 500 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 501 SDL_SetError("Couldn't get console hardware info"); | |
| 502 FB_VideoQuit(this); | |
| 503 return(-1); | |
| 504 } | |
| 505 switch (finfo.type) { | |
| 506 case FB_TYPE_PACKED_PIXELS: | |
| 507 /* Supported, no worries.. */ | |
| 508 break; | |
| 509 #ifdef VGA16_FBCON_SUPPORT | |
| 510 case FB_TYPE_VGA_PLANES: | |
| 511 /* VGA16 is supported, but that's it */ | |
| 512 if ( finfo.type_aux == FB_AUX_VGA_PLANES_VGA4 ) { | |
| 513 if ( ioperm(0x3b4, 0x3df - 0x3b4 + 1, 1) < 0 ) { | |
| 514 SDL_SetError("No I/O port permissions"); | |
| 515 FB_VideoQuit(this); | |
| 516 return(-1); | |
| 517 } | |
| 518 this->SetVideoMode = FB_SetVGA16Mode; | |
| 519 break; | |
| 520 } | |
| 521 /* Fall through to unsupported case */ | |
| 522 #endif /* VGA16_FBCON_SUPPORT */ | |
| 523 default: | |
| 524 SDL_SetError("Unsupported console hardware"); | |
| 525 FB_VideoQuit(this); | |
| 526 return(-1); | |
| 527 } | |
| 528 switch (finfo.visual) { | |
| 529 case FB_VISUAL_TRUECOLOR: | |
| 530 case FB_VISUAL_PSEUDOCOLOR: | |
| 531 case FB_VISUAL_STATIC_PSEUDOCOLOR: | |
| 532 case FB_VISUAL_DIRECTCOLOR: | |
| 533 break; | |
| 534 default: | |
| 535 SDL_SetError("Unsupported console hardware"); | |
| 536 FB_VideoQuit(this); | |
| 537 return(-1); | |
| 538 } | |
| 539 | |
| 540 /* Check if the user wants to disable hardware acceleration */ | |
| 541 { const char *fb_accel; | |
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542 fb_accel = SDL_getenv("SDL_FBACCEL"); |
| 0 | 543 if ( fb_accel ) { |
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544 finfo.accel = SDL_atoi(fb_accel); |
| 0 | 545 } |
| 546 } | |
| 547 | |
| 548 /* Memory map the device, compensating for buggy PPC mmap() */ | |
| 549 mapped_offset = (((long)finfo.smem_start) - | |
| 550 (((long)finfo.smem_start)&~(PAGE_SIZE-1))); | |
| 551 mapped_memlen = finfo.smem_len+mapped_offset; | |
| 1659 | 552 mapped_mem = do_mmap(NULL, mapped_memlen, |
| 0 | 553 PROT_READ|PROT_WRITE, MAP_SHARED, console_fd, 0); |
| 554 if ( mapped_mem == (char *)-1 ) { | |
| 555 SDL_SetError("Unable to memory map the video hardware"); | |
| 556 mapped_mem = NULL; | |
| 557 FB_VideoQuit(this); | |
| 558 return(-1); | |
| 559 } | |
| 560 | |
| 561 /* Determine the current screen depth */ | |
| 562 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 563 SDL_SetError("Couldn't get console pixel format"); | |
| 564 FB_VideoQuit(this); | |
| 565 return(-1); | |
| 566 } | |
| 567 vformat->BitsPerPixel = vinfo.bits_per_pixel; | |
| 568 if ( vformat->BitsPerPixel < 8 ) { | |
| 569 /* Assuming VGA16, we handle this via a shadow framebuffer */ | |
| 570 vformat->BitsPerPixel = 8; | |
| 571 } | |
| 572 for ( i=0; i<vinfo.red.length; ++i ) { | |
| 573 vformat->Rmask <<= 1; | |
| 574 vformat->Rmask |= (0x00000001<<vinfo.red.offset); | |
| 575 } | |
| 576 for ( i=0; i<vinfo.green.length; ++i ) { | |
| 577 vformat->Gmask <<= 1; | |
| 578 vformat->Gmask |= (0x00000001<<vinfo.green.offset); | |
| 579 } | |
| 580 for ( i=0; i<vinfo.blue.length; ++i ) { | |
| 581 vformat->Bmask <<= 1; | |
| 582 vformat->Bmask |= (0x00000001<<vinfo.blue.offset); | |
| 583 } | |
| 584 saved_vinfo = vinfo; | |
| 585 | |
| 586 /* Save hardware palette, if needed */ | |
| 587 FB_SavePalette(this, &finfo, &vinfo); | |
| 588 | |
| 589 /* If the I/O registers are available, memory map them so we | |
| 590 can take advantage of any supported hardware acceleration. | |
| 591 */ | |
| 592 vinfo.accel_flags = 0; /* Temporarily reserve registers */ | |
| 593 ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo); | |
| 594 if ( finfo.accel && finfo.mmio_len ) { | |
| 595 mapped_iolen = finfo.mmio_len; | |
| 1659 | 596 mapped_io = do_mmap(NULL, mapped_iolen, PROT_READ|PROT_WRITE, |
| 0 | 597 MAP_SHARED, console_fd, mapped_memlen); |
| 598 if ( mapped_io == (char *)-1 ) { | |
| 599 /* Hmm, failed to memory map I/O registers */ | |
| 600 mapped_io = NULL; | |
| 601 } | |
| 602 } | |
| 603 | |
| 604 /* Query for the list of available video modes */ | |
| 605 current_w = vinfo.xres; | |
| 606 current_h = vinfo.yres; | |
| 607 current_index = ((vinfo.bits_per_pixel+7)/8)-1; | |
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608 modesdb = fopen(FB_MODES_DB, "r"); |
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609 for ( i=0; i<NUM_MODELISTS; ++i ) { |
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610 SDL_nummodes[i] = 0; |
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611 SDL_modelist[i] = NULL; |
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612 } |
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613 if ( SDL_getenv("SDL_FB_BROKEN_MODES") != NULL ) { |
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614 FB_AddMode(this, current_index, current_w, current_h, 0); |
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615 } else if(modesdb) { |
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616 while ( read_fbmodes_mode(modesdb, &vinfo) ) { |
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617 for ( i=0; i<NUM_MODELISTS; ++i ) { |
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618 unsigned int w, h; |
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619 |
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620 /* See if we are querying for the current mode */ |
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621 w = vinfo.xres; |
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622 h = vinfo.yres; |
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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
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
626 FB_AddMode(this, i, current_w, current_h, 0); |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
627 current_index = -1; |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
628 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
629 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
630 if ( FB_CheckMode(this, &vinfo, i, &w, &h) ) { |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
631 FB_AddMode(this, i, w, h, 0); |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
632 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
633 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
634 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
635 fclose(modesdb); |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
636 FB_SortModes(this); |
|
941
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
637 } else { |
|
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
638 for ( i=0; i<NUM_MODELISTS; ++i ) { |
|
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
639 for ( j=0; j<(sizeof(checkres)/sizeof(checkres[0])); ++j ) { |
|
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
640 unsigned int w, h; |
| 0 | 641 |
|
941
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
642 /* See if we are querying for the current mode */ |
|
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
643 w = checkres[j].w; |
|
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
644 h = checkres[j].h; |
|
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
645 if ( i == current_index ) { |
|
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
646 if ( (current_w > w) || (current_h > h) ) { |
|
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
647 /* Only check once */ |
|
1215
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
648 FB_AddMode(this, i, current_w, current_h, 0); |
|
941
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
649 current_index = -1; |
|
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
650 } |
| 0 | 651 } |
|
941
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
652 if ( FB_CheckMode(this, &vinfo, i, &w, &h) ) { |
|
1215
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
653 FB_AddMode(this, i, w, h, 1); |
|
941
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
654 } |
| 0 | 655 } |
| 656 } | |
| 657 } | |
| 658 | |
| 659 /* Fill in our hardware acceleration capabilities */ | |
|
1545
8d9bb0cf2c2a
Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
660 this->info.current_w = current_w; |
|
8d9bb0cf2c2a
Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
661 this->info.current_h = current_h; |
| 0 | 662 this->info.wm_available = 0; |
| 663 this->info.hw_available = 1; | |
| 664 this->info.video_mem = finfo.smem_len/1024; | |
| 665 if ( mapped_io ) { | |
| 666 switch (finfo.accel) { | |
| 667 case FB_ACCEL_MATROX_MGA2064W: | |
| 668 case FB_ACCEL_MATROX_MGA1064SG: | |
| 669 case FB_ACCEL_MATROX_MGA2164W: | |
| 670 case FB_ACCEL_MATROX_MGA2164W_AGP: | |
| 671 case FB_ACCEL_MATROX_MGAG100: | |
| 672 /*case FB_ACCEL_MATROX_MGAG200: G200 acceleration broken! */ | |
| 673 case FB_ACCEL_MATROX_MGAG400: | |
| 674 #ifdef FBACCEL_DEBUG | |
| 675 printf("Matrox hardware accelerator!\n"); | |
| 676 #endif | |
| 677 FB_MatroxAccel(this, finfo.accel); | |
| 678 break; | |
| 679 case FB_ACCEL_3DFX_BANSHEE: | |
| 680 #ifdef FBACCEL_DEBUG | |
| 681 printf("3DFX hardware accelerator!\n"); | |
| 682 #endif | |
| 683 FB_3DfxAccel(this, finfo.accel); | |
| 684 break; | |
|
133
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
106
diff
changeset
|
685 case FB_ACCEL_NV3: |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
106
diff
changeset
|
686 case FB_ACCEL_NV4: |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
106
diff
changeset
|
687 #ifdef FBACCEL_DEBUG |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
106
diff
changeset
|
688 printf("NVidia hardware accelerator!\n"); |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
106
diff
changeset
|
689 #endif |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
106
diff
changeset
|
690 FB_RivaAccel(this, finfo.accel); |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
106
diff
changeset
|
691 break; |
| 0 | 692 default: |
| 693 #ifdef FBACCEL_DEBUG | |
| 694 printf("Unknown hardware accelerator.\n"); | |
| 695 #endif | |
| 696 break; | |
| 697 } | |
| 698 } | |
| 699 | |
| 700 /* Enable mouse and keyboard support */ | |
| 701 if ( FB_OpenKeyboard(this) < 0 ) { | |
| 702 FB_VideoQuit(this); | |
| 703 return(-1); | |
| 704 } | |
| 705 if ( FB_OpenMouse(this) < 0 ) { | |
| 706 const char *sdl_nomouse; | |
| 707 | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
708 sdl_nomouse = SDL_getenv("SDL_NOMOUSE"); |
| 0 | 709 if ( ! sdl_nomouse ) { |
| 710 SDL_SetError("Unable to open mouse"); | |
| 711 FB_VideoQuit(this); | |
| 712 return(-1); | |
| 713 } | |
| 714 } | |
| 715 | |
| 716 /* We're done! */ | |
| 717 return(0); | |
| 718 } | |
| 719 | |
| 720 static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) | |
| 721 { | |
| 722 return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]); | |
| 723 } | |
| 724 | |
| 725 /* Various screen update functions available */ | |
| 726 static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); | |
| 727 #ifdef VGA16_FBCON_SUPPORT | |
| 728 static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects); | |
| 729 #endif | |
| 730 | |
| 731 #ifdef FBCON_DEBUG | |
| 732 static void print_vinfo(struct fb_var_screeninfo *vinfo) | |
| 733 { | |
| 734 fprintf(stderr, "Printing vinfo:\n"); | |
| 735 fprintf(stderr, "\txres: %d\n", vinfo->xres); | |
| 736 fprintf(stderr, "\tyres: %d\n", vinfo->yres); | |
| 737 fprintf(stderr, "\txres_virtual: %d\n", vinfo->xres_virtual); | |
| 738 fprintf(stderr, "\tyres_virtual: %d\n", vinfo->yres_virtual); | |
| 739 fprintf(stderr, "\txoffset: %d\n", vinfo->xoffset); | |
| 740 fprintf(stderr, "\tyoffset: %d\n", vinfo->yoffset); | |
| 741 fprintf(stderr, "\tbits_per_pixel: %d\n", vinfo->bits_per_pixel); | |
| 742 fprintf(stderr, "\tgrayscale: %d\n", vinfo->grayscale); | |
| 743 fprintf(stderr, "\tnonstd: %d\n", vinfo->nonstd); | |
| 744 fprintf(stderr, "\tactivate: %d\n", vinfo->activate); | |
| 745 fprintf(stderr, "\theight: %d\n", vinfo->height); | |
| 746 fprintf(stderr, "\twidth: %d\n", vinfo->width); | |
| 747 fprintf(stderr, "\taccel_flags: %d\n", vinfo->accel_flags); | |
| 748 fprintf(stderr, "\tpixclock: %d\n", vinfo->pixclock); | |
| 749 fprintf(stderr, "\tleft_margin: %d\n", vinfo->left_margin); | |
| 750 fprintf(stderr, "\tright_margin: %d\n", vinfo->right_margin); | |
| 751 fprintf(stderr, "\tupper_margin: %d\n", vinfo->upper_margin); | |
| 752 fprintf(stderr, "\tlower_margin: %d\n", vinfo->lower_margin); | |
| 753 fprintf(stderr, "\thsync_len: %d\n", vinfo->hsync_len); | |
| 754 fprintf(stderr, "\tvsync_len: %d\n", vinfo->vsync_len); | |
| 755 fprintf(stderr, "\tsync: %d\n", vinfo->sync); | |
| 756 fprintf(stderr, "\tvmode: %d\n", vinfo->vmode); | |
| 757 fprintf(stderr, "\tred: %d/%d\n", vinfo->red.length, vinfo->red.offset); | |
| 758 fprintf(stderr, "\tgreen: %d/%d\n", vinfo->green.length, vinfo->green.offset); | |
| 759 fprintf(stderr, "\tblue: %d/%d\n", vinfo->blue.length, vinfo->blue.offset); | |
| 760 fprintf(stderr, "\talpha: %d/%d\n", vinfo->transp.length, vinfo->transp.offset); | |
| 761 } | |
| 762 static void print_finfo(struct fb_fix_screeninfo *finfo) | |
| 763 { | |
| 764 fprintf(stderr, "Printing finfo:\n"); | |
| 765 fprintf(stderr, "\tsmem_start = %p\n", (char *)finfo->smem_start); | |
| 766 fprintf(stderr, "\tsmem_len = %d\n", finfo->smem_len); | |
| 767 fprintf(stderr, "\ttype = %d\n", finfo->type); | |
| 768 fprintf(stderr, "\ttype_aux = %d\n", finfo->type_aux); | |
| 769 fprintf(stderr, "\tvisual = %d\n", finfo->visual); | |
| 770 fprintf(stderr, "\txpanstep = %d\n", finfo->xpanstep); | |
| 771 fprintf(stderr, "\typanstep = %d\n", finfo->ypanstep); | |
| 772 fprintf(stderr, "\tywrapstep = %d\n", finfo->ywrapstep); | |
| 773 fprintf(stderr, "\tline_length = %d\n", finfo->line_length); | |
| 774 fprintf(stderr, "\tmmio_start = %p\n", (char *)finfo->mmio_start); | |
| 775 fprintf(stderr, "\tmmio_len = %d\n", finfo->mmio_len); | |
| 776 fprintf(stderr, "\taccel = %d\n", finfo->accel); | |
| 777 } | |
| 778 #endif | |
| 779 | |
| 780 static int choose_fbmodes_mode(struct fb_var_screeninfo *vinfo) | |
| 781 { | |
| 782 int matched; | |
|
1215
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
783 FILE *modesdb; |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
784 struct fb_var_screeninfo cinfo; |
| 0 | 785 |
| 786 matched = 0; | |
|
1215
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
787 modesdb = fopen(FB_MODES_DB, "r"); |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
788 if ( modesdb ) { |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
789 /* Parse the mode definition file */ |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
790 while ( read_fbmodes_mode(modesdb, &cinfo) ) { |
|
1217
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
791 if ( (vinfo->xres == cinfo.xres && vinfo->yres == cinfo.yres) && |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
792 (!matched || (vinfo->bits_per_pixel == cinfo.bits_per_pixel)) ) { |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
793 vinfo->pixclock = cinfo.pixclock; |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
794 vinfo->left_margin = cinfo.left_margin; |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
795 vinfo->right_margin = cinfo.right_margin; |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
796 vinfo->upper_margin = cinfo.upper_margin; |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
797 vinfo->lower_margin = cinfo.lower_margin; |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
798 vinfo->hsync_len = cinfo.hsync_len; |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
799 vinfo->vsync_len = cinfo.vsync_len; |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
800 if ( matched ) { |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
801 break; |
|
ae9981987c2f
Oops, actually use the timings in the modes db. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1215
diff
changeset
|
802 } |
|
1215
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
803 matched = 1; |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
804 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
805 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
806 fclose(modesdb); |
| 0 | 807 } |
| 808 return(matched); | |
| 809 } | |
| 810 | |
| 811 static int choose_vesa_mode(struct fb_var_screeninfo *vinfo) | |
| 812 { | |
| 813 int matched; | |
| 814 int i; | |
| 815 | |
| 816 /* Check for VESA timings */ | |
| 817 matched = 0; | |
| 818 for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { | |
| 819 if ( (vinfo->xres == vesa_timings[i].xres) && | |
| 820 (vinfo->yres == vesa_timings[i].yres) ) { | |
| 821 #ifdef FBCON_DEBUG | |
| 822 fprintf(stderr, "Using VESA timings for %dx%d\n", | |
| 823 vinfo->xres, vinfo->yres); | |
| 824 #endif | |
| 825 if ( vesa_timings[i].pixclock ) { | |
| 826 vinfo->pixclock = vesa_timings[i].pixclock; | |
| 827 } | |
| 828 vinfo->left_margin = vesa_timings[i].left; | |
| 829 vinfo->right_margin = vesa_timings[i].right; | |
| 830 vinfo->upper_margin = vesa_timings[i].upper; | |
| 831 vinfo->lower_margin = vesa_timings[i].lower; | |
| 832 vinfo->hsync_len = vesa_timings[i].hslen; | |
| 833 vinfo->vsync_len = vesa_timings[i].vslen; | |
| 834 vinfo->sync = vesa_timings[i].sync; | |
| 835 vinfo->vmode = vesa_timings[i].vmode; | |
| 836 matched = 1; | |
| 837 break; | |
| 838 } | |
| 839 } | |
| 840 return(matched); | |
| 841 } | |
| 842 | |
| 843 #ifdef VGA16_FBCON_SUPPORT | |
| 844 static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, | |
| 845 int width, int height, int bpp, Uint32 flags) | |
| 846 { | |
| 847 struct fb_fix_screeninfo finfo; | |
| 848 struct fb_var_screeninfo vinfo; | |
| 849 | |
| 850 /* Set the terminal into graphics mode */ | |
| 851 if ( FB_EnterGraphicsMode(this) < 0 ) { | |
| 852 return(NULL); | |
| 853 } | |
| 854 | |
| 855 /* Restore the original palette */ | |
| 856 FB_RestorePalette(this); | |
| 857 | |
| 858 /* Set the video mode and get the final screen format */ | |
| 859 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 860 SDL_SetError("Couldn't get console screen info"); | |
| 861 return(NULL); | |
| 862 } | |
| 863 cache_vinfo = vinfo; | |
| 864 #ifdef FBCON_DEBUG | |
| 865 fprintf(stderr, "Printing actual vinfo:\n"); | |
| 866 print_vinfo(&vinfo); | |
| 867 #endif | |
| 868 if ( ! SDL_ReallocFormat(current, bpp, 0, 0, 0, 0) ) { | |
| 869 return(NULL); | |
| 870 } | |
|
106
63ec24e0575f
Merged DGA video surface handling improvements, unified locking code.
Sam Lantinga <slouken@lokigames.com>
parents:
91
diff
changeset
|
871 current->format->palette->ncolors = 16; |
| 0 | 872 |
| 873 /* Get the fixed information about the console hardware. | |
| 874 This is necessary since finfo.line_length changes. | |
| 875 */ | |
| 876 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 877 SDL_SetError("Couldn't get console hardware info"); | |
| 878 return(NULL); | |
| 879 } | |
| 880 #ifdef FBCON_DEBUG | |
| 881 fprintf(stderr, "Printing actual finfo:\n"); | |
| 882 print_finfo(&finfo); | |
| 883 #endif | |
| 884 | |
| 885 /* Save hardware palette, if needed */ | |
| 886 FB_SavePalette(this, &finfo, &vinfo); | |
| 887 | |
| 888 /* Set up the new mode framebuffer */ | |
| 889 current->flags = SDL_FULLSCREEN; | |
| 890 current->w = vinfo.xres; | |
| 891 current->h = vinfo.yres; | |
| 892 current->pitch = current->w; | |
|
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893 current->pixels = SDL_malloc(current->h*current->pitch); |
| 0 | 894 |
| 895 /* Set the update rectangle function */ | |
| 896 this->UpdateRects = FB_VGA16Update; | |
| 897 | |
| 898 /* We're done */ | |
| 899 return(current); | |
| 900 } | |
| 901 #endif /* VGA16_FBCON_SUPPORT */ | |
| 902 | |
| 903 static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, | |
| 904 int width, int height, int bpp, Uint32 flags) | |
| 905 { | |
| 906 struct fb_fix_screeninfo finfo; | |
| 907 struct fb_var_screeninfo vinfo; | |
| 908 int i; | |
| 909 Uint32 Rmask; | |
| 910 Uint32 Gmask; | |
| 911 Uint32 Bmask; | |
| 912 char *surfaces_mem; | |
| 913 int surfaces_len; | |
| 914 | |
| 915 /* Set the terminal into graphics mode */ | |
| 916 if ( FB_EnterGraphicsMode(this) < 0 ) { | |
| 917 return(NULL); | |
| 918 } | |
| 919 | |
| 920 /* Restore the original palette */ | |
| 921 FB_RestorePalette(this); | |
| 922 | |
| 923 /* Set the video mode and get the final screen format */ | |
| 924 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 925 SDL_SetError("Couldn't get console screen info"); | |
| 926 return(NULL); | |
| 927 } | |
| 928 #ifdef FBCON_DEBUG | |
| 929 fprintf(stderr, "Printing original vinfo:\n"); | |
| 930 print_vinfo(&vinfo); | |
| 931 #endif | |
| 932 if ( (vinfo.xres != width) || (vinfo.yres != height) || | |
| 933 (vinfo.bits_per_pixel != bpp) || (flags & SDL_DOUBLEBUF) ) { | |
| 934 vinfo.activate = FB_ACTIVATE_NOW; | |
| 935 vinfo.accel_flags = 0; | |
| 936 vinfo.bits_per_pixel = bpp; | |
| 937 vinfo.xres = width; | |
| 938 vinfo.xres_virtual = width; | |
| 939 vinfo.yres = height; | |
| 940 if ( flags & SDL_DOUBLEBUF ) { | |
| 941 vinfo.yres_virtual = height*2; | |
| 942 } else { | |
| 943 vinfo.yres_virtual = height; | |
| 944 } | |
| 945 vinfo.xoffset = 0; | |
| 946 vinfo.yoffset = 0; | |
| 947 vinfo.red.length = vinfo.red.offset = 0; | |
| 948 vinfo.green.length = vinfo.green.offset = 0; | |
| 949 vinfo.blue.length = vinfo.blue.offset = 0; | |
| 950 vinfo.transp.length = vinfo.transp.offset = 0; | |
| 951 if ( ! choose_fbmodes_mode(&vinfo) ) { | |
| 952 choose_vesa_mode(&vinfo); | |
| 953 } | |
| 954 #ifdef FBCON_DEBUG | |
| 955 fprintf(stderr, "Printing wanted vinfo:\n"); | |
| 956 print_vinfo(&vinfo); | |
| 957 #endif | |
| 958 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { | |
| 959 vinfo.yres_virtual = height; | |
| 960 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { | |
| 961 SDL_SetError("Couldn't set console screen info"); | |
| 962 return(NULL); | |
| 963 } | |
| 964 } | |
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965 } else { |
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966 int maxheight; |
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967 |
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968 /* Figure out how much video memory is available */ |
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969 if ( flags & SDL_DOUBLEBUF ) { |
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970 maxheight = height*2; |
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971 } else { |
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972 maxheight = height; |
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973 } |
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974 if ( vinfo.yres_virtual > maxheight ) { |
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975 vinfo.yres_virtual = maxheight; |
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976 } |
| 0 | 977 } |
| 978 cache_vinfo = vinfo; | |
| 979 #ifdef FBCON_DEBUG | |
| 980 fprintf(stderr, "Printing actual vinfo:\n"); | |
| 981 print_vinfo(&vinfo); | |
| 982 #endif | |
| 983 Rmask = 0; | |
| 984 for ( i=0; i<vinfo.red.length; ++i ) { | |
| 985 Rmask <<= 1; | |
| 986 Rmask |= (0x00000001<<vinfo.red.offset); | |
| 987 } | |
| 988 Gmask = 0; | |
| 989 for ( i=0; i<vinfo.green.length; ++i ) { | |
| 990 Gmask <<= 1; | |
| 991 Gmask |= (0x00000001<<vinfo.green.offset); | |
| 992 } | |
| 993 Bmask = 0; | |
| 994 for ( i=0; i<vinfo.blue.length; ++i ) { | |
| 995 Bmask <<= 1; | |
| 996 Bmask |= (0x00000001<<vinfo.blue.offset); | |
| 997 } | |
| 998 if ( ! SDL_ReallocFormat(current, vinfo.bits_per_pixel, | |
| 999 Rmask, Gmask, Bmask, 0) ) { | |
| 1000 return(NULL); | |
| 1001 } | |
| 1002 | |
| 1003 /* Get the fixed information about the console hardware. | |
| 1004 This is necessary since finfo.line_length changes. | |
| 1005 */ | |
| 1006 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 1007 SDL_SetError("Couldn't get console hardware info"); | |
| 1008 return(NULL); | |
| 1009 } | |
| 1010 | |
| 1011 /* Save hardware palette, if needed */ | |
| 1012 FB_SavePalette(this, &finfo, &vinfo); | |
| 1013 | |
| 1014 /* Set up the new mode framebuffer */ | |
| 1015 current->flags = (SDL_FULLSCREEN|SDL_HWSURFACE); | |
| 1016 current->w = vinfo.xres; | |
| 1017 current->h = vinfo.yres; | |
| 1018 current->pitch = finfo.line_length; | |
| 1019 current->pixels = mapped_mem+mapped_offset; | |
| 1020 | |
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1021 /* Set up the information for hardware surfaces */ |
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1022 surfaces_mem = (char *)current->pixels + |
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1023 vinfo.yres_virtual*current->pitch; |
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1024 surfaces_len = (mapped_memlen-(surfaces_mem-mapped_mem)); |
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1025 FB_FreeHWSurfaces(this); |
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1026 FB_InitHWSurfaces(this, current, surfaces_mem, surfaces_len); |
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1027 |
| 0 | 1028 /* Let the application know we have a hardware palette */ |
| 1029 switch (finfo.visual) { | |
| 1030 case FB_VISUAL_PSEUDOCOLOR: | |
| 1031 current->flags |= SDL_HWPALETTE; | |
| 1032 break; | |
| 1033 default: | |
| 1034 break; | |
| 1035 } | |
| 1036 | |
| 1037 /* Update for double-buffering, if we can */ | |
| 1038 if ( flags & SDL_DOUBLEBUF ) { | |
| 1039 if ( vinfo.yres_virtual == (height*2) ) { | |
| 1040 current->flags |= SDL_DOUBLEBUF; | |
| 1041 flip_page = 0; | |
| 1042 flip_address[0] = (char *)current->pixels; | |
| 1043 flip_address[1] = (char *)current->pixels+ | |
| 1044 current->h*current->pitch; | |
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1045 this->screen = current; |
| 0 | 1046 FB_FlipHWSurface(this, current); |
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1047 this->screen = NULL; |
| 0 | 1048 } |
| 1049 } | |
| 1050 | |
| 1051 /* Set the update rectangle function */ | |
| 1052 this->UpdateRects = FB_DirectUpdate; | |
| 1053 | |
| 1054 /* We're done */ | |
| 1055 return(current); | |
| 1056 } | |
| 1057 | |
| 1058 #ifdef FBCON_DEBUG | |
| 1059 void FB_DumpHWSurfaces(_THIS) | |
| 1060 { | |
| 1061 vidmem_bucket *bucket; | |
| 1062 | |
| 1063 printf("Memory left: %d (%d total)\n", surfaces_memleft, surfaces_memtotal); | |
| 1064 printf("\n"); | |
| 1065 printf(" Base Size\n"); | |
| 1066 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 1067 printf("Bucket: %p, %d (%s)\n", bucket->base, bucket->size, bucket->used ? "used" : "free"); | |
| 1068 if ( bucket->prev ) { | |
| 1069 if ( bucket->base != bucket->prev->base+bucket->prev->size ) { | |
| 1070 printf("Warning, corrupt bucket list! (prev)\n"); | |
| 1071 } | |
| 1072 } else { | |
| 1073 if ( bucket != &surfaces ) { | |
| 1074 printf("Warning, corrupt bucket list! (!prev)\n"); | |
| 1075 } | |
| 1076 } | |
| 1077 if ( bucket->next ) { | |
| 1078 if ( bucket->next->base != bucket->base+bucket->size ) { | |
| 1079 printf("Warning, corrupt bucket list! (next)\n"); | |
| 1080 } | |
| 1081 } | |
| 1082 } | |
| 1083 printf("\n"); | |
| 1084 } | |
| 1085 #endif | |
| 1086 | |
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1087 static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size) |
| 0 | 1088 { |
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1089 vidmem_bucket *bucket; |
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1090 |
| 0 | 1091 surfaces_memtotal = size; |
| 1092 surfaces_memleft = size; | |
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1093 |
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1094 if ( surfaces_memleft > 0 ) { |
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1095 bucket = (vidmem_bucket *)SDL_malloc(sizeof(*bucket)); |
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1096 if ( bucket == NULL ) { |
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1097 SDL_OutOfMemory(); |
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1098 return(-1); |
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1099 } |
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1100 bucket->prev = &surfaces; |
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1101 bucket->used = 0; |
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1102 bucket->dirty = 0; |
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1103 bucket->base = base; |
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1104 bucket->size = size; |
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1105 bucket->next = NULL; |
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1106 } else { |
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1107 bucket = NULL; |
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1108 } |
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1109 |
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1110 surfaces.prev = NULL; |
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1111 surfaces.used = 1; |
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1112 surfaces.dirty = 0; |
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1113 surfaces.base = screen->pixels; |
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1114 surfaces.size = (unsigned int)((long)base - (long)surfaces.base); |
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1115 surfaces.next = bucket; |
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1116 screen->hwdata = (struct private_hwdata *)&surfaces; |
| 0 | 1117 return(0); |
| 1118 } | |
| 1119 static void FB_FreeHWSurfaces(_THIS) | |
| 1120 { | |
| 1121 vidmem_bucket *bucket, *freeable; | |
| 1122 | |
| 1123 bucket = surfaces.next; | |
| 1124 while ( bucket ) { | |
| 1125 freeable = bucket; | |
| 1126 bucket = bucket->next; | |
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1127 SDL_free(freeable); |
| 0 | 1128 } |
| 1129 surfaces.next = NULL; | |
| 1130 } | |
| 1131 | |
| 1132 static int FB_AllocHWSurface(_THIS, SDL_Surface *surface) | |
| 1133 { | |
| 1134 vidmem_bucket *bucket; | |
| 1135 int size; | |
| 1136 int extra; | |
| 1137 | |
| 1138 /* Temporarily, we only allow surfaces the same width as display. | |
| 1139 Some blitters require the pitch between two hardware surfaces | |
| 1140 to be the same. Others have interesting alignment restrictions. | |
| 1141 Until someone who knows these details looks at the code... | |
| 1142 */ | |
| 1143 if ( surface->pitch > SDL_VideoSurface->pitch ) { | |
| 1144 SDL_SetError("Surface requested wider than screen"); | |
| 1145 return(-1); | |
| 1146 } | |
| 1147 surface->pitch = SDL_VideoSurface->pitch; | |
| 1148 size = surface->h * surface->pitch; | |
| 1149 #ifdef FBCON_DEBUG | |
| 1150 fprintf(stderr, "Allocating bucket of %d bytes\n", size); | |
| 1151 #endif | |
| 1152 | |
| 1153 /* Quick check for available mem */ | |
| 1154 if ( size > surfaces_memleft ) { | |
| 1155 SDL_SetError("Not enough video memory"); | |
| 1156 return(-1); | |
| 1157 } | |
| 1158 | |
| 1159 /* Search for an empty bucket big enough */ | |
| 1160 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 1161 if ( ! bucket->used && (size <= bucket->size) ) { | |
| 1162 break; | |
| 1163 } | |
| 1164 } | |
| 1165 if ( bucket == NULL ) { | |
| 1166 SDL_SetError("Video memory too fragmented"); | |
| 1167 return(-1); | |
| 1168 } | |
| 1169 | |
| 1170 /* Create a new bucket for left-over memory */ | |
| 1171 extra = (bucket->size - size); | |
| 1172 if ( extra ) { | |
| 1173 vidmem_bucket *newbucket; | |
| 1174 | |
| 1175 #ifdef FBCON_DEBUG | |
| 1176 fprintf(stderr, "Adding new free bucket of %d bytes\n", extra); | |
| 1177 #endif | |
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1178 newbucket = (vidmem_bucket *)SDL_malloc(sizeof(*newbucket)); |
| 0 | 1179 if ( newbucket == NULL ) { |
| 1180 SDL_OutOfMemory(); | |
| 1181 return(-1); | |
| 1182 } | |
| 1183 newbucket->prev = bucket; | |
| 1184 newbucket->used = 0; | |
| 1185 newbucket->base = bucket->base+size; | |
| 1186 newbucket->size = extra; | |
| 1187 newbucket->next = bucket->next; | |
| 1188 if ( bucket->next ) { | |
| 1189 bucket->next->prev = newbucket; | |
| 1190 } | |
| 1191 bucket->next = newbucket; | |
| 1192 } | |
| 1193 | |
| 1194 /* Set the current bucket values and return it! */ | |
| 1195 bucket->used = 1; | |
| 1196 bucket->size = size; | |
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1197 bucket->dirty = 0; |
| 0 | 1198 #ifdef FBCON_DEBUG |
| 1199 fprintf(stderr, "Allocated %d bytes at %p\n", bucket->size, bucket->base); | |
| 1200 #endif | |
| 1201 surfaces_memleft -= size; | |
| 1202 surface->flags |= SDL_HWSURFACE; | |
| 1203 surface->pixels = bucket->base; | |
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1204 surface->hwdata = (struct private_hwdata *)bucket; |
| 0 | 1205 return(0); |
| 1206 } | |
| 1207 static void FB_FreeHWSurface(_THIS, SDL_Surface *surface) | |
| 1208 { | |
| 1209 vidmem_bucket *bucket, *freeable; | |
| 1210 | |
| 1211 /* Look for the bucket in the current list */ | |
| 1212 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
|
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1213 if ( bucket == (vidmem_bucket *)surface->hwdata ) { |
| 0 | 1214 break; |
| 1215 } | |
| 1216 } | |
|
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1217 if ( bucket && bucket->used ) { |
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1218 /* Add the memory back to the total */ |
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1219 #ifdef DGA_DEBUG |
| 0 | 1220 printf("Freeing bucket of %d bytes\n", bucket->size); |
| 1221 #endif | |
|
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1222 surfaces_memleft += bucket->size; |
| 0 | 1223 |
|
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1224 /* Can we merge the space with surrounding buckets? */ |
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1225 bucket->used = 0; |
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1226 if ( bucket->next && ! bucket->next->used ) { |
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1227 #ifdef DGA_DEBUG |
| 0 | 1228 printf("Merging with next bucket, for %d total bytes\n", bucket->size+bucket->next->size); |
| 1229 #endif | |
|
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1230 freeable = bucket->next; |
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1231 bucket->size += bucket->next->size; |
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1232 bucket->next = bucket->next->next; |
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1233 if ( bucket->next ) { |
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1234 bucket->next->prev = bucket; |
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1235 } |
|
1336
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1236 SDL_free(freeable); |
| 0 | 1237 } |
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1238 if ( bucket->prev && ! bucket->prev->used ) { |
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1239 #ifdef DGA_DEBUG |
| 0 | 1240 printf("Merging with previous bucket, for %d total bytes\n", bucket->prev->size+bucket->size); |
| 1241 #endif | |
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1242 freeable = bucket; |
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1243 bucket->prev->size += bucket->size; |
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1244 bucket->prev->next = bucket->next; |
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1245 if ( bucket->next ) { |
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1246 bucket->next->prev = bucket->prev; |
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1247 } |
|
1336
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1248 SDL_free(freeable); |
| 0 | 1249 } |
| 1250 } | |
| 1251 surface->pixels = NULL; | |
|
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1252 surface->hwdata = NULL; |
| 0 | 1253 } |
|
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1254 |
| 0 | 1255 static int FB_LockHWSurface(_THIS, SDL_Surface *surface) |
| 1256 { | |
| 1659 | 1257 if ( switched_away ) { |
| 1258 return -2; /* no hardware access */ | |
|
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1259 } |
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1260 if ( surface == this->screen ) { |
| 0 | 1261 SDL_mutexP(hw_lock); |
|
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1262 if ( FB_IsSurfaceBusy(surface) ) { |
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1263 FB_WaitBusySurfaces(this); |
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1264 } |
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1265 } else { |
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1266 if ( FB_IsSurfaceBusy(surface) ) { |
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1267 FB_WaitBusySurfaces(this); |
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1268 } |
| 0 | 1269 } |
| 1270 return(0); | |
| 1271 } | |
| 1272 static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
| 1273 { | |
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1274 if ( surface == this->screen ) { |
| 0 | 1275 SDL_mutexV(hw_lock); |
| 1276 } | |
| 1277 } | |
| 1278 | |
| 1279 static void FB_WaitVBL(_THIS) | |
| 1280 { | |
| 1281 #ifdef FBIOWAITRETRACE /* Heheh, this didn't make it into the main kernel */ | |
| 1282 ioctl(console_fd, FBIOWAITRETRACE, 0); | |
| 1283 #endif | |
| 1284 return; | |
| 1285 } | |
| 1286 | |
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1287 static void FB_WaitIdle(_THIS) |
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1288 { |
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1289 return; |
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1290 } |
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1291 |
| 0 | 1292 static int FB_FlipHWSurface(_THIS, SDL_Surface *surface) |
| 1293 { | |
| 1659 | 1294 if ( switched_away ) { |
| 1295 return -2; /* no hardware access */ | |
| 1296 } | |
| 1297 | |
| 0 | 1298 /* Wait for vertical retrace and then flip display */ |
| 1299 cache_vinfo.yoffset = flip_page*surface->h; | |
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1300 if ( FB_IsSurfaceBusy(this->screen) ) { |
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1301 FB_WaitBusySurfaces(this); |
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1302 } |
| 0 | 1303 wait_vbl(this); |
| 1304 if ( ioctl(console_fd, FBIOPAN_DISPLAY, &cache_vinfo) < 0 ) { | |
| 1305 SDL_SetError("ioctl(FBIOPAN_DISPLAY) failed"); | |
| 1306 return(-1); | |
| 1307 } | |
| 1308 flip_page = !flip_page; | |
| 1309 | |
| 1310 surface->pixels = flip_address[flip_page]; | |
| 1311 return(0); | |
| 1312 } | |
| 1313 | |
| 1314 static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) | |
| 1315 { | |
| 1316 /* The application is already updating the visible video memory */ | |
| 1317 return; | |
| 1318 } | |
| 1319 | |
| 1320 #ifdef VGA16_FBCON_SUPPORT | |
| 1321 /* Code adapted with thanks from the XFree86 VGA16 driver! :) */ | |
| 1322 #define writeGr(index, value) \ | |
| 1323 outb(index, 0x3CE); \ | |
| 1324 outb(value, 0x3CF); | |
| 1325 #define writeSeq(index, value) \ | |
| 1326 outb(index, 0x3C4); \ | |
| 1327 outb(value, 0x3C5); | |
| 1328 | |
| 1329 static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects) | |
| 1330 { | |
| 1331 SDL_Surface *screen; | |
| 1332 int width, height, FBPitch, left, i, j, SRCPitch, phase; | |
| 1333 register Uint32 m; | |
| 1334 Uint8 s1, s2, s3, s4; | |
| 1335 Uint32 *src, *srcPtr; | |
| 1336 Uint8 *dst, *dstPtr; | |
| 1337 | |
| 1659 | 1338 if ( switched_away ) { |
| 1339 return; /* no hardware access */ | |
| 1340 } | |
| 1341 | |
| 0 | 1342 screen = this->screen; |
| 1343 FBPitch = screen->w >> 3; | |
| 1344 SRCPitch = screen->pitch >> 2; | |
| 1345 | |
| 1346 writeGr(0x03, 0x00); | |
| 1347 writeGr(0x05, 0x00); | |
| 1348 writeGr(0x01, 0x00); | |
| 1349 writeGr(0x08, 0xFF); | |
| 1350 | |
| 1351 while(numrects--) { | |
| 1352 left = rects->x & ~7; | |
| 1353 width = (rects->w + 7) >> 3; | |
| 1354 height = rects->h; | |
| 1355 src = (Uint32*)screen->pixels + (rects->y * SRCPitch) + (left >> 2); | |
| 1356 dst = (Uint8*)mapped_mem + (rects->y * FBPitch) + (left >> 3); | |
| 1357 | |
| 1358 if((phase = (long)dst & 3L)) { | |
| 1359 phase = 4 - phase; | |
| 1360 if(phase > width) phase = width; | |
| 1361 width -= phase; | |
| 1362 } | |
| 1363 | |
| 1364 while(height--) { | |
| 1365 writeSeq(0x02, 1 << 0); | |
| 1366 dstPtr = dst; | |
| 1367 srcPtr = src; | |
| 1368 i = width; | |
| 1369 j = phase; | |
| 1370 while(j--) { | |
| 1371 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1372 *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1373 srcPtr += 2; | |
| 1374 } | |
| 1375 while(i >= 4) { | |
| 1376 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1377 s1 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1378 m = (srcPtr[3] & 0x01010101) | ((srcPtr[2] & 0x01010101) << 4); | |
| 1379 s2 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1380 m = (srcPtr[5] & 0x01010101) | ((srcPtr[4] & 0x01010101) << 4); | |
| 1381 s3 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1382 m = (srcPtr[7] & 0x01010101) | ((srcPtr[6] & 0x01010101) << 4); | |
| 1383 s4 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1384 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1385 srcPtr += 8; | |
| 1386 dstPtr += 4; | |
| 1387 i -= 4; | |
| 1388 } | |
| 1389 while(i--) { | |
| 1390 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1391 *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1392 srcPtr += 2; | |
| 1393 } | |
| 1394 | |
| 1395 writeSeq(0x02, 1 << 1); | |
| 1396 dstPtr = dst; | |
| 1397 srcPtr = src; | |
| 1398 i = width; | |
| 1399 j = phase; | |
| 1400 while(j--) { | |
| 1401 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1402 *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1403 srcPtr += 2; | |
| 1404 } | |
| 1405 while(i >= 4) { | |
| 1406 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1407 s1 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1408 m = (srcPtr[3] & 0x02020202) | ((srcPtr[2] & 0x02020202) << 4); | |
| 1409 s2 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1410 m = (srcPtr[5] & 0x02020202) | ((srcPtr[4] & 0x02020202) << 4); | |
| 1411 s3 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1412 m = (srcPtr[7] & 0x02020202) | ((srcPtr[6] & 0x02020202) << 4); | |
| 1413 s4 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1414 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1415 srcPtr += 8; | |
| 1416 dstPtr += 4; | |
| 1417 i -= 4; | |
| 1418 } | |
| 1419 while(i--) { | |
| 1420 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1421 *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1422 srcPtr += 2; | |
| 1423 } | |
| 1424 | |
| 1425 writeSeq(0x02, 1 << 2); | |
| 1426 dstPtr = dst; | |
| 1427 srcPtr = src; | |
| 1428 i = width; | |
| 1429 j = phase; | |
| 1430 while(j--) { | |
| 1431 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1432 *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1433 srcPtr += 2; | |
| 1434 } | |
| 1435 while(i >= 4) { | |
| 1436 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1437 s1 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1438 m = (srcPtr[3] & 0x04040404) | ((srcPtr[2] & 0x04040404) << 4); | |
| 1439 s2 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1440 m = (srcPtr[5] & 0x04040404) | ((srcPtr[4] & 0x04040404) << 4); | |
| 1441 s3 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1442 m = (srcPtr[7] & 0x04040404) | ((srcPtr[6] & 0x04040404) << 4); | |
| 1443 s4 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1444 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1445 srcPtr += 8; | |
| 1446 dstPtr += 4; | |
| 1447 i -= 4; | |
| 1448 } | |
| 1449 while(i--) { | |
| 1450 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1451 *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1452 srcPtr += 2; | |
| 1453 } | |
| 1454 | |
| 1455 writeSeq(0x02, 1 << 3); | |
| 1456 dstPtr = dst; | |
| 1457 srcPtr = src; | |
| 1458 i = width; | |
| 1459 j = phase; | |
| 1460 while(j--) { | |
| 1461 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1462 *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1463 srcPtr += 2; | |
| 1464 } | |
| 1465 while(i >= 4) { | |
| 1466 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1467 s1 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1468 m = (srcPtr[3] & 0x08080808) | ((srcPtr[2] & 0x08080808) << 4); | |
| 1469 s2 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1470 m = (srcPtr[5] & 0x08080808) | ((srcPtr[4] & 0x08080808) << 4); | |
| 1471 s3 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1472 m = (srcPtr[7] & 0x08080808) | ((srcPtr[6] & 0x08080808) << 4); | |
| 1473 s4 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1474 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1475 srcPtr += 8; | |
| 1476 dstPtr += 4; | |
| 1477 i -= 4; | |
| 1478 } | |
| 1479 while(i--) { | |
| 1480 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1481 *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1482 srcPtr += 2; | |
| 1483 } | |
| 1484 | |
| 1485 dst += FBPitch; | |
| 1486 src += SRCPitch; | |
| 1487 } | |
| 1488 rects++; | |
| 1489 } | |
| 1490 } | |
| 1491 #endif /* VGA16_FBCON_SUPPORT */ | |
| 1492 | |
| 1493 void FB_SavePaletteTo(_THIS, int palette_len, __u16 *area) | |
| 1494 { | |
| 1495 struct fb_cmap cmap; | |
| 1496 | |
| 1497 cmap.start = 0; | |
| 1498 cmap.len = palette_len; | |
| 1499 cmap.red = &area[0*palette_len]; | |
| 1500 cmap.green = &area[1*palette_len]; | |
| 1501 cmap.blue = &area[2*palette_len]; | |
| 1502 cmap.transp = NULL; | |
| 1503 ioctl(console_fd, FBIOGETCMAP, &cmap); | |
| 1504 } | |
| 1505 | |
| 1506 void FB_RestorePaletteFrom(_THIS, int palette_len, __u16 *area) | |
| 1507 { | |
| 1508 struct fb_cmap cmap; | |
| 1509 | |
| 1510 cmap.start = 0; | |
| 1511 cmap.len = palette_len; | |
| 1512 cmap.red = &area[0*palette_len]; | |
| 1513 cmap.green = &area[1*palette_len]; | |
| 1514 cmap.blue = &area[2*palette_len]; | |
| 1515 cmap.transp = NULL; | |
| 1516 ioctl(console_fd, FBIOPUTCMAP, &cmap); | |
| 1517 } | |
| 1518 | |
| 1519 static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, | |
| 1520 struct fb_var_screeninfo *vinfo) | |
| 1521 { | |
| 1522 int i; | |
| 1523 | |
| 1524 /* Save hardware palette, if needed */ | |
| 1525 if ( finfo->visual == FB_VISUAL_PSEUDOCOLOR ) { | |
| 1526 saved_cmaplen = 1<<vinfo->bits_per_pixel; | |
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1527 saved_cmap=(__u16 *)SDL_malloc(3*saved_cmaplen*sizeof(*saved_cmap)); |
| 0 | 1528 if ( saved_cmap != NULL ) { |
| 1529 FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); | |
| 1530 } | |
| 1531 } | |
| 1532 | |
| 1533 /* Added support for FB_VISUAL_DIRECTCOLOR. | |
| 1534 With this mode pixel information is passed through the palette... | |
| 1535 Neat fading and gamma correction effects can be had by simply | |
| 1536 fooling around with the palette instead of changing the pixel | |
| 1537 values themselves... Very neat! | |
| 1538 | |
| 1539 Adam Meyerowitz 1/19/2000 | |
| 1540 ameyerow@optonline.com | |
| 1541 */ | |
| 1542 if ( finfo->visual == FB_VISUAL_DIRECTCOLOR ) { | |
| 1543 __u16 new_entries[3*256]; | |
| 1544 | |
| 1545 /* Save the colormap */ | |
| 1546 saved_cmaplen = 256; | |
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1547 saved_cmap=(__u16 *)SDL_malloc(3*saved_cmaplen*sizeof(*saved_cmap)); |
| 0 | 1548 if ( saved_cmap != NULL ) { |
| 1549 FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); | |
| 1550 } | |
| 1551 | |
| 1552 /* Allocate new identity colormap */ | |
| 1553 for ( i=0; i<256; ++i ) { | |
| 1554 new_entries[(0*256)+i] = | |
| 1555 new_entries[(1*256)+i] = | |
| 1556 new_entries[(2*256)+i] = (i<<8)|i; | |
| 1557 } | |
| 1558 FB_RestorePaletteFrom(this, 256, new_entries); | |
| 1559 } | |
| 1560 } | |
| 1561 | |
| 1562 static void FB_RestorePalette(_THIS) | |
| 1563 { | |
| 1564 /* Restore the original palette */ | |
| 1565 if ( saved_cmap ) { | |
| 1566 FB_RestorePaletteFrom(this, saved_cmaplen, saved_cmap); | |
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1567 SDL_free(saved_cmap); |
| 0 | 1568 saved_cmap = NULL; |
| 1569 } | |
| 1570 } | |
| 1571 | |
| 1572 static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | |
| 1573 { | |
| 1574 int i; | |
| 1575 __u16 r[256]; | |
| 1576 __u16 g[256]; | |
| 1577 __u16 b[256]; | |
| 1578 struct fb_cmap cmap; | |
| 1579 | |
| 1580 /* Set up the colormap */ | |
| 1581 for (i = 0; i < ncolors; i++) { | |
| 1582 r[i] = colors[i].r << 8; | |
| 1583 g[i] = colors[i].g << 8; | |
| 1584 b[i] = colors[i].b << 8; | |
| 1585 } | |
| 1586 cmap.start = firstcolor; | |
| 1587 cmap.len = ncolors; | |
| 1588 cmap.red = r; | |
| 1589 cmap.green = g; | |
| 1590 cmap.blue = b; | |
| 1591 cmap.transp = NULL; | |
| 1592 | |
| 1593 if( (ioctl(console_fd, FBIOPUTCMAP, &cmap) < 0) || | |
| 1594 !(this->screen->flags & SDL_HWPALETTE) ) { | |
| 1595 colors = this->screen->format->palette->colors; | |
| 1596 ncolors = this->screen->format->palette->ncolors; | |
| 1597 cmap.start = 0; | |
| 1598 cmap.len = ncolors; | |
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1599 SDL_memset(r, 0, sizeof(r)); |
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1600 SDL_memset(g, 0, sizeof(g)); |
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1601 SDL_memset(b, 0, sizeof(b)); |
| 0 | 1602 if ( ioctl(console_fd, FBIOGETCMAP, &cmap) == 0 ) { |
| 1603 for ( i=ncolors-1; i>=0; --i ) { | |
| 1604 colors[i].r = (r[i]>>8); | |
| 1605 colors[i].g = (g[i]>>8); | |
| 1606 colors[i].b = (b[i]>>8); | |
| 1607 } | |
| 1608 } | |
| 1609 return(0); | |
| 1610 } | |
| 1611 return(1); | |
| 1612 } | |
| 1613 | |
| 1614 /* Note: If we are terminated, this could be called in the middle of | |
| 1615 another SDL video routine -- notably UpdateRects. | |
| 1616 */ | |
| 1617 static void FB_VideoQuit(_THIS) | |
| 1618 { | |
| 1619 int i, j; | |
| 1620 | |
| 1621 if ( this->screen ) { | |
| 1622 /* Clear screen and tell SDL not to free the pixels */ | |
| 1623 if ( this->screen->pixels && FB_InGraphicsMode(this) ) { | |
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1624 #if defined(__powerpc__) || defined(__ia64__) /* SIGBUS when using SDL_memset() ?? */ |
| 0 | 1625 Uint8 *rowp = (Uint8 *)this->screen->pixels; |
| 1626 int left = this->screen->pitch*this->screen->h; | |
| 1627 while ( left-- ) { *rowp++ = 0; } | |
| 1628 #else | |
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1629 SDL_memset(this->screen->pixels,0,this->screen->h*this->screen->pitch); |
| 0 | 1630 #endif |
| 1631 } | |
| 1632 /* This test fails when using the VGA16 shadow memory */ | |
| 1633 if ( ((char *)this->screen->pixels >= mapped_mem) && | |
| 1634 ((char *)this->screen->pixels < (mapped_mem+mapped_memlen)) ) { | |
| 1635 this->screen->pixels = NULL; | |
| 1636 } | |
| 1637 } | |
| 1638 | |
| 1639 /* Clear the lock mutex */ | |
| 1640 if ( hw_lock ) { | |
| 1641 SDL_DestroyMutex(hw_lock); | |
| 1642 hw_lock = NULL; | |
| 1643 } | |
| 1644 | |
| 1645 /* Clean up defined video modes */ | |
| 1646 for ( i=0; i<NUM_MODELISTS; ++i ) { | |
| 1647 if ( SDL_modelist[i] != NULL ) { | |
| 1648 for ( j=0; SDL_modelist[i][j]; ++j ) { | |
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1649 SDL_free(SDL_modelist[i][j]); |
| 0 | 1650 } |
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1651 SDL_free(SDL_modelist[i]); |
| 0 | 1652 SDL_modelist[i] = NULL; |
| 1653 } | |
| 1654 } | |
| 1655 | |
| 1656 /* Clean up the memory bucket list */ | |
| 1657 FB_FreeHWSurfaces(this); | |
| 1658 | |
| 1659 /* Close console and input file descriptors */ | |
| 1660 if ( console_fd > 0 ) { | |
| 1661 /* Unmap the video framebuffer and I/O registers */ | |
| 1662 if ( mapped_mem ) { | |
| 1663 munmap(mapped_mem, mapped_memlen); | |
| 1664 mapped_mem = NULL; | |
| 1665 } | |
| 1666 if ( mapped_io ) { | |
| 1667 munmap(mapped_io, mapped_iolen); | |
| 1668 mapped_io = NULL; | |
| 1669 } | |
| 1670 | |
| 1671 /* Restore the original video mode and palette */ | |
| 1672 if ( FB_InGraphicsMode(this) ) { | |
| 1673 FB_RestorePalette(this); | |
| 1674 ioctl(console_fd, FBIOPUT_VSCREENINFO, &saved_vinfo); | |
| 1675 } | |
| 1676 | |
| 1677 /* We're all done with the framebuffer */ | |
| 1678 close(console_fd); | |
| 1679 console_fd = -1; | |
| 1680 } | |
| 1681 FB_CloseMouse(this); | |
| 1682 FB_CloseKeyboard(this); | |
| 1683 } |