Mercurial > sdl-ios-xcode
annotate src/video/fbcon/SDL_fbvideo.c @ 3923:0dd8bdf173e2 SDL-1.2
Linux fbcon: don't include asm/page.h if we know getpagesize() exists, since
we don't need it, and doing so will hit #error lines on some CPU archs.
Thanks to Mike Frysinger for the heads up.
Fixes Bugzilla #414.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Wed, 14 Mar 2007 01:09:24 +0000 |
| parents | 8a3a0f1179f3 |
| children | a1b03ba2fcd0 |
| 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> | |
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32 |
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33 #ifndef HAVE_GETPAGESIZE |
| 0 | 34 #include <asm/page.h> /* For definition of PAGE_SIZE */ |
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35 #endif |
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36 |
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37 #include <linux/vt.h> |
| 0 | 38 |
| 39 #include "SDL_video.h" | |
| 40 #include "SDL_mouse.h" | |
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41 #include "../SDL_sysvideo.h" |
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42 #include "../SDL_pixels_c.h" |
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43 #include "../../events/SDL_events_c.h" |
| 0 | 44 #include "SDL_fbvideo.h" |
| 45 #include "SDL_fbmouse_c.h" | |
| 46 #include "SDL_fbevents_c.h" | |
| 47 #include "SDL_fb3dfx.h" | |
| 48 #include "SDL_fbmatrox.h" | |
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49 #include "SDL_fbriva.h" |
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50 |
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51 /*#define FBCON_DEBUG*/ |
| 0 | 52 |
| 53 #if defined(i386) && defined(FB_TYPE_VGA_PLANES) | |
| 54 #define VGA16_FBCON_SUPPORT | |
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55 #include <sys/io.h> /* For ioperm() */ |
| 0 | 56 #ifndef FB_AUX_VGA_PLANES_VGA4 |
| 57 #define FB_AUX_VGA_PLANES_VGA4 0 | |
| 58 #endif | |
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59 /* |
| 0 | 60 static inline void outb (unsigned char value, unsigned short port) |
| 61 { | |
| 62 __asm__ __volatile__ ("outb %b0,%w1"::"a" (value), "Nd" (port)); | |
| 63 } | |
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64 */ |
| 0 | 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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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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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 | |
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156 static int SDL_getpagesize(void) |
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157 { |
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158 #ifdef HAVE_GETPAGESIZE |
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159 return getpagesize(); |
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160 #elif defined(PAGE_SIZE) |
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161 return PAGE_SIZE; |
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162 #else |
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163 #error Can not determine system page size. |
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164 return 4096; /* this is what it USED to be in Linux... */ |
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165 #endif |
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166 } |
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167 |
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168 |
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169 /* Small wrapper for mmap() so we can play nicely with no-mmu hosts |
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170 * (non-mmu hosts disallow the MAP_SHARED flag) */ |
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171 |
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172 static void *do_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) |
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173 { |
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174 void *ret; |
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175 ret = mmap(start, length, prot, flags, fd, offset); |
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176 if ( ret == (char *)-1 && (flags & MAP_SHARED) ) { |
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177 ret = mmap(start, length, prot, |
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178 (flags & ~MAP_SHARED) | MAP_PRIVATE, fd, offset); |
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179 } |
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180 return ret; |
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181 } |
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182 |
| 0 | 183 /* FB driver bootstrap functions */ |
| 184 | |
| 185 static int FB_Available(void) | |
| 186 { | |
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187 int console = -1; |
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188 /* Added check for /fb/0 (devfs) */ |
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189 /* but - use environment variable first... if it fails, still check defaults */ |
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190 int idx = 0; |
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191 const char *SDL_fbdevs[4] = { NULL, "/dev/fb0", "/dev/fb/0", NULL }; |
| 0 | 192 |
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193 SDL_fbdevs[0] = SDL_getenv("SDL_FBDEV"); |
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194 if( !SDL_fbdevs[0] ) |
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195 idx++; |
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196 for( ; SDL_fbdevs[idx]; idx++ ) |
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197 { |
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198 console = open(SDL_fbdevs[idx], O_RDWR, 0); |
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199 if ( console >= 0 ) { |
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200 close(console); |
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201 break; |
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202 } |
| 0 | 203 } |
| 204 return(console >= 0); | |
| 205 } | |
| 206 | |
| 207 static void FB_DeleteDevice(SDL_VideoDevice *device) | |
| 208 { | |
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209 SDL_free(device->hidden); |
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210 SDL_free(device); |
| 0 | 211 } |
| 212 | |
| 213 static SDL_VideoDevice *FB_CreateDevice(int devindex) | |
| 214 { | |
| 215 SDL_VideoDevice *this; | |
| 216 | |
| 217 /* Initialize all variables that we clean on shutdown */ | |
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218 this = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); |
| 0 | 219 if ( this ) { |
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220 SDL_memset(this, 0, (sizeof *this)); |
| 0 | 221 this->hidden = (struct SDL_PrivateVideoData *) |
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222 SDL_malloc((sizeof *this->hidden)); |
| 0 | 223 } |
| 224 if ( (this == NULL) || (this->hidden == NULL) ) { | |
| 225 SDL_OutOfMemory(); | |
| 226 if ( this ) { | |
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227 SDL_free(this); |
| 0 | 228 } |
| 229 return(0); | |
| 230 } | |
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231 SDL_memset(this->hidden, 0, (sizeof *this->hidden)); |
| 0 | 232 wait_vbl = FB_WaitVBL; |
|
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233 wait_idle = FB_WaitIdle; |
| 0 | 234 mouse_fd = -1; |
| 235 keyboard_fd = -1; | |
| 236 | |
| 237 /* Set the function pointers */ | |
| 238 this->VideoInit = FB_VideoInit; | |
| 239 this->ListModes = FB_ListModes; | |
| 240 this->SetVideoMode = FB_SetVideoMode; | |
| 241 this->SetColors = FB_SetColors; | |
| 242 this->UpdateRects = NULL; | |
| 243 this->VideoQuit = FB_VideoQuit; | |
| 244 this->AllocHWSurface = FB_AllocHWSurface; | |
| 245 this->CheckHWBlit = NULL; | |
| 246 this->FillHWRect = NULL; | |
| 247 this->SetHWColorKey = NULL; | |
| 248 this->SetHWAlpha = NULL; | |
| 249 this->LockHWSurface = FB_LockHWSurface; | |
| 250 this->UnlockHWSurface = FB_UnlockHWSurface; | |
| 251 this->FlipHWSurface = FB_FlipHWSurface; | |
| 252 this->FreeHWSurface = FB_FreeHWSurface; | |
| 253 this->SetCaption = NULL; | |
| 254 this->SetIcon = NULL; | |
| 255 this->IconifyWindow = NULL; | |
| 256 this->GrabInput = NULL; | |
| 257 this->GetWMInfo = NULL; | |
| 258 this->InitOSKeymap = FB_InitOSKeymap; | |
| 259 this->PumpEvents = FB_PumpEvents; | |
| 260 | |
| 261 this->free = FB_DeleteDevice; | |
| 262 | |
| 263 return this; | |
| 264 } | |
| 265 | |
| 266 VideoBootStrap FBCON_bootstrap = { | |
| 267 "fbcon", "Linux Framebuffer Console", | |
| 268 FB_Available, FB_CreateDevice | |
| 269 }; | |
| 270 | |
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271 #define FB_MODES_DB "/etc/fb.modes" |
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272 |
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273 static int read_fbmodes_line(FILE*f, char* line, int length) |
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274 { |
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275 int blank; |
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276 char* c; |
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277 int i; |
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278 |
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279 blank=0; |
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280 /* find a relevant line */ |
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281 do |
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282 { |
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283 if (fgets(line,length,f)<=0) |
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284 return 0; |
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285 c=line; |
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286 while(((*c=='\t')||(*c==' '))&&(*c!=0)) |
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287 c++; |
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288 |
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289 if ((*c=='\n')||(*c=='#')||(*c==0)) |
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290 blank=1; |
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291 else |
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292 blank=0; |
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293 } |
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294 while(blank); |
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295 /* remove whitespace at the begining of the string */ |
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296 i=0; |
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297 do |
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298 { |
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299 line[i]=c[i]; |
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300 i++; |
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301 } |
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302 while(c[i]!=0); |
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303 return 1; |
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304 } |
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305 |
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306 static int read_fbmodes_mode(FILE *f, struct fb_var_screeninfo *vinfo) |
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307 { |
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308 char line[1024]; |
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309 char option[256]; |
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310 |
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311 /* Find a "geometry" */ |
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312 do { |
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313 if (read_fbmodes_line(f, line, sizeof(line))==0) |
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314 return 0; |
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315 if (SDL_strncmp(line,"geometry",8)==0) |
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316 break; |
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317 } |
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318 while(1); |
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319 |
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320 SDL_sscanf(line, "geometry %d %d %d %d %d", &vinfo->xres, &vinfo->yres, |
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321 &vinfo->xres_virtual, &vinfo->yres_virtual, &vinfo->bits_per_pixel); |
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322 if (read_fbmodes_line(f, line, sizeof(line))==0) |
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323 return 0; |
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324 |
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325 SDL_sscanf(line, "timings %d %d %d %d %d %d %d", &vinfo->pixclock, |
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326 &vinfo->left_margin, &vinfo->right_margin, &vinfo->upper_margin, |
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327 &vinfo->lower_margin, &vinfo->hsync_len, &vinfo->vsync_len); |
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328 |
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329 vinfo->sync=0; |
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330 vinfo->vmode=FB_VMODE_NONINTERLACED; |
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331 |
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332 /* Parse misc options */ |
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333 do { |
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334 if (read_fbmodes_line(f, line, sizeof(line))==0) |
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335 return 0; |
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336 |
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337 if (SDL_strncmp(line,"hsync",5)==0) { |
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338 SDL_sscanf(line,"hsync %s",option); |
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339 if (SDL_strncmp(option,"high",4)==0) |
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340 vinfo->sync |= FB_SYNC_HOR_HIGH_ACT; |
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341 } |
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342 else if (SDL_strncmp(line,"vsync",5)==0) { |
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343 SDL_sscanf(line,"vsync %s",option); |
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344 if (SDL_strncmp(option,"high",4)==0) |
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345 vinfo->sync |= FB_SYNC_VERT_HIGH_ACT; |
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346 } |
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347 else if (SDL_strncmp(line,"csync",5)==0) { |
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348 SDL_sscanf(line,"csync %s",option); |
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349 if (SDL_strncmp(option,"high",4)==0) |
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350 vinfo->sync |= FB_SYNC_COMP_HIGH_ACT; |
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351 } |
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352 else if (SDL_strncmp(line,"extsync",5)==0) { |
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353 SDL_sscanf(line,"extsync %s",option); |
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354 if (SDL_strncmp(option,"true",4)==0) |
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355 vinfo->sync |= FB_SYNC_EXT; |
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356 } |
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357 else if (SDL_strncmp(line,"laced",5)==0) { |
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358 SDL_sscanf(line,"laced %s",option); |
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359 if (SDL_strncmp(option,"true",4)==0) |
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360 vinfo->vmode |= FB_VMODE_INTERLACED; |
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361 } |
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362 else if (SDL_strncmp(line,"double",6)==0) { |
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363 SDL_sscanf(line,"double %s",option); |
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364 if (SDL_strncmp(option,"true",4)==0) |
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365 vinfo->vmode |= FB_VMODE_DOUBLE; |
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366 } |
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367 } |
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368 while(SDL_strncmp(line,"endmode",7)!=0); |
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369 |
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370 return 1; |
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371 } |
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372 |
| 0 | 373 static int FB_CheckMode(_THIS, struct fb_var_screeninfo *vinfo, |
| 374 int index, unsigned int *w, unsigned int *h) | |
| 375 { | |
| 376 int mode_okay; | |
| 377 | |
| 378 mode_okay = 0; | |
| 379 vinfo->bits_per_pixel = (index+1)*8; | |
| 380 vinfo->xres = *w; | |
| 381 vinfo->xres_virtual = *w; | |
| 382 vinfo->yres = *h; | |
| 383 vinfo->yres_virtual = *h; | |
| 384 vinfo->activate = FB_ACTIVATE_TEST; | |
| 385 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, vinfo) == 0 ) { | |
| 386 #ifdef FBCON_DEBUG | |
| 387 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); | |
| 388 #endif | |
| 389 if ( (((vinfo->bits_per_pixel+7)/8)-1) == index ) { | |
| 390 *w = vinfo->xres; | |
| 391 *h = vinfo->yres; | |
| 392 mode_okay = 1; | |
| 393 } | |
| 394 } | |
| 395 return mode_okay; | |
| 396 } | |
| 397 | |
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398 static int FB_AddMode(_THIS, int index, unsigned int w, unsigned int h, int check_timings) |
| 0 | 399 { |
| 400 SDL_Rect *mode; | |
| 401 int i; | |
| 402 int next_mode; | |
| 403 | |
| 404 /* Check to see if we already have this mode */ | |
| 405 if ( SDL_nummodes[index] > 0 ) { | |
| 406 mode = SDL_modelist[index][SDL_nummodes[index]-1]; | |
| 407 if ( (mode->w == w) && (mode->h == h) ) { | |
| 408 #ifdef FBCON_DEBUG | |
| 409 fprintf(stderr, "We already have mode %dx%d at %d bytes per pixel\n", w, h, index+1); | |
| 410 #endif | |
| 411 return(0); | |
| 412 } | |
| 413 } | |
| 414 | |
| 415 /* Only allow a mode if we have a valid timing for it */ | |
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416 if ( check_timings ) { |
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417 int found_timing = 0; |
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418 for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { |
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419 if ( (w == vesa_timings[i].xres) && |
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420 (h == vesa_timings[i].yres) && vesa_timings[i].pixclock ) { |
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421 found_timing = 1; |
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422 break; |
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423 } |
| 0 | 424 } |
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425 if ( !found_timing ) { |
| 0 | 426 #ifdef FBCON_DEBUG |
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427 fprintf(stderr, "No valid timing line for mode %dx%d\n", w, h); |
| 0 | 428 #endif |
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429 return(0); |
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430 } |
| 0 | 431 } |
| 432 | |
| 433 /* Set up the new video mode rectangle */ | |
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434 mode = (SDL_Rect *)SDL_malloc(sizeof *mode); |
| 0 | 435 if ( mode == NULL ) { |
| 436 SDL_OutOfMemory(); | |
| 437 return(-1); | |
| 438 } | |
| 439 mode->x = 0; | |
| 440 mode->y = 0; | |
| 441 mode->w = w; | |
| 442 mode->h = h; | |
| 443 #ifdef FBCON_DEBUG | |
| 444 fprintf(stderr, "Adding mode %dx%d at %d bytes per pixel\n", w, h, index+1); | |
| 445 #endif | |
| 446 | |
| 447 /* Allocate the new list of modes, and fill in the new mode */ | |
| 448 next_mode = SDL_nummodes[index]; | |
| 449 SDL_modelist[index] = (SDL_Rect **) | |
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450 SDL_realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *)); |
| 0 | 451 if ( SDL_modelist[index] == NULL ) { |
| 452 SDL_OutOfMemory(); | |
| 453 SDL_nummodes[index] = 0; | |
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454 SDL_free(mode); |
| 0 | 455 return(-1); |
| 456 } | |
| 457 SDL_modelist[index][next_mode] = mode; | |
| 458 SDL_modelist[index][next_mode+1] = NULL; | |
| 459 SDL_nummodes[index]++; | |
| 460 | |
| 461 return(0); | |
| 462 } | |
| 463 | |
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464 static int cmpmodes(const void *va, const void *vb) |
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465 { |
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466 const SDL_Rect *a = *(const SDL_Rect**)va; |
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467 const SDL_Rect *b = *(const SDL_Rect**)vb; |
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468 if ( a->h == b->h ) |
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469 return b->w - a->w; |
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470 else |
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471 return b->h - a->h; |
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472 } |
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473 |
|
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474 static void FB_SortModes(_THIS) |
|
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475 { |
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476 int i; |
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477 for ( i=0; i<NUM_MODELISTS; ++i ) { |
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478 if ( SDL_nummodes[i] > 0 ) { |
|
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479 SDL_qsort(SDL_modelist[i], SDL_nummodes[i], sizeof *SDL_modelist[i], cmpmodes); |
|
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480 } |
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481 } |
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482 } |
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483 |
| 0 | 484 static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat) |
| 485 { | |
|
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|
486 const int pagesize = SDL_getpagesize(); |
| 0 | 487 struct fb_fix_screeninfo finfo; |
| 488 struct fb_var_screeninfo vinfo; | |
| 489 int i, j; | |
| 490 int current_index; | |
| 491 unsigned int current_w; | |
| 492 unsigned int current_h; | |
| 493 const char *SDL_fbdev; | |
|
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494 FILE *modesdb; |
| 0 | 495 |
| 496 /* Initialize the library */ | |
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497 SDL_fbdev = SDL_getenv("SDL_FBDEV"); |
| 0 | 498 if ( SDL_fbdev == NULL ) { |
| 499 SDL_fbdev = "/dev/fb0"; | |
| 500 } | |
| 501 console_fd = open(SDL_fbdev, O_RDWR, 0); | |
| 502 if ( console_fd < 0 ) { | |
| 503 SDL_SetError("Unable to open %s", SDL_fbdev); | |
| 504 return(-1); | |
| 505 } | |
| 506 | |
|
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|
507 #if !SDL_THREADS_DISABLED |
| 0 | 508 /* Create the hardware surface lock mutex */ |
| 509 hw_lock = SDL_CreateMutex(); | |
| 510 if ( hw_lock == NULL ) { | |
| 511 SDL_SetError("Unable to create lock mutex"); | |
| 512 FB_VideoQuit(this); | |
| 513 return(-1); | |
| 514 } | |
| 515 #endif | |
| 516 | |
| 517 /* Get the type of video hardware */ | |
| 518 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 519 SDL_SetError("Couldn't get console hardware info"); | |
| 520 FB_VideoQuit(this); | |
| 521 return(-1); | |
| 522 } | |
| 523 switch (finfo.type) { | |
| 524 case FB_TYPE_PACKED_PIXELS: | |
| 525 /* Supported, no worries.. */ | |
| 526 break; | |
| 527 #ifdef VGA16_FBCON_SUPPORT | |
| 528 case FB_TYPE_VGA_PLANES: | |
| 529 /* VGA16 is supported, but that's it */ | |
| 530 if ( finfo.type_aux == FB_AUX_VGA_PLANES_VGA4 ) { | |
| 531 if ( ioperm(0x3b4, 0x3df - 0x3b4 + 1, 1) < 0 ) { | |
| 532 SDL_SetError("No I/O port permissions"); | |
| 533 FB_VideoQuit(this); | |
| 534 return(-1); | |
| 535 } | |
| 536 this->SetVideoMode = FB_SetVGA16Mode; | |
| 537 break; | |
| 538 } | |
| 539 /* Fall through to unsupported case */ | |
| 540 #endif /* VGA16_FBCON_SUPPORT */ | |
| 541 default: | |
| 542 SDL_SetError("Unsupported console hardware"); | |
| 543 FB_VideoQuit(this); | |
| 544 return(-1); | |
| 545 } | |
| 546 switch (finfo.visual) { | |
| 547 case FB_VISUAL_TRUECOLOR: | |
| 548 case FB_VISUAL_PSEUDOCOLOR: | |
| 549 case FB_VISUAL_STATIC_PSEUDOCOLOR: | |
| 550 case FB_VISUAL_DIRECTCOLOR: | |
| 551 break; | |
| 552 default: | |
| 553 SDL_SetError("Unsupported console hardware"); | |
| 554 FB_VideoQuit(this); | |
| 555 return(-1); | |
| 556 } | |
| 557 | |
| 558 /* Check if the user wants to disable hardware acceleration */ | |
| 559 { const char *fb_accel; | |
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560 fb_accel = SDL_getenv("SDL_FBACCEL"); |
| 0 | 561 if ( fb_accel ) { |
|
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562 finfo.accel = SDL_atoi(fb_accel); |
| 0 | 563 } |
| 564 } | |
| 565 | |
| 566 /* Memory map the device, compensating for buggy PPC mmap() */ | |
| 567 mapped_offset = (((long)finfo.smem_start) - | |
|
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|
568 (((long)finfo.smem_start)&~(pagesize-1))); |
| 0 | 569 mapped_memlen = finfo.smem_len+mapped_offset; |
|
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Date: Tue, 9 May 2006 23:01:49 -0400
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|
570 mapped_mem = do_mmap(NULL, mapped_memlen, |
| 0 | 571 PROT_READ|PROT_WRITE, MAP_SHARED, console_fd, 0); |
| 572 if ( mapped_mem == (char *)-1 ) { | |
| 573 SDL_SetError("Unable to memory map the video hardware"); | |
| 574 mapped_mem = NULL; | |
| 575 FB_VideoQuit(this); | |
| 576 return(-1); | |
| 577 } | |
| 578 | |
| 579 /* Determine the current screen depth */ | |
| 580 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 581 SDL_SetError("Couldn't get console pixel format"); | |
| 582 FB_VideoQuit(this); | |
| 583 return(-1); | |
| 584 } | |
| 585 vformat->BitsPerPixel = vinfo.bits_per_pixel; | |
| 586 if ( vformat->BitsPerPixel < 8 ) { | |
| 587 /* Assuming VGA16, we handle this via a shadow framebuffer */ | |
| 588 vformat->BitsPerPixel = 8; | |
| 589 } | |
| 590 for ( i=0; i<vinfo.red.length; ++i ) { | |
| 591 vformat->Rmask <<= 1; | |
| 592 vformat->Rmask |= (0x00000001<<vinfo.red.offset); | |
| 593 } | |
| 594 for ( i=0; i<vinfo.green.length; ++i ) { | |
| 595 vformat->Gmask <<= 1; | |
| 596 vformat->Gmask |= (0x00000001<<vinfo.green.offset); | |
| 597 } | |
| 598 for ( i=0; i<vinfo.blue.length; ++i ) { | |
| 599 vformat->Bmask <<= 1; | |
| 600 vformat->Bmask |= (0x00000001<<vinfo.blue.offset); | |
| 601 } | |
| 602 saved_vinfo = vinfo; | |
| 603 | |
| 604 /* Save hardware palette, if needed */ | |
| 605 FB_SavePalette(this, &finfo, &vinfo); | |
| 606 | |
| 607 /* If the I/O registers are available, memory map them so we | |
| 608 can take advantage of any supported hardware acceleration. | |
| 609 */ | |
| 610 vinfo.accel_flags = 0; /* Temporarily reserve registers */ | |
| 611 ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo); | |
| 612 if ( finfo.accel && finfo.mmio_len ) { | |
| 613 mapped_iolen = finfo.mmio_len; | |
|
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49b4b8413734
Date: Tue, 9 May 2006 23:01:49 -0400
Sam Lantinga <slouken@libsdl.org>
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1780
diff
changeset
|
614 mapped_io = do_mmap(NULL, mapped_iolen, PROT_READ|PROT_WRITE, |
| 0 | 615 MAP_SHARED, console_fd, mapped_memlen); |
| 616 if ( mapped_io == (char *)-1 ) { | |
| 617 /* Hmm, failed to memory map I/O registers */ | |
| 618 mapped_io = NULL; | |
| 619 } | |
| 620 } | |
| 621 | |
| 622 /* Query for the list of available video modes */ | |
| 623 current_w = vinfo.xres; | |
| 624 current_h = vinfo.yres; | |
| 625 current_index = ((vinfo.bits_per_pixel+7)/8)-1; | |
|
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Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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parents:
1036
diff
changeset
|
626 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:
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diff
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|
627 for ( i=0; i<NUM_MODELISTS; ++i ) { |
|
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
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|
628 SDL_nummodes[i] = 0; |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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parents:
1036
diff
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|
629 SDL_modelist[i] = NULL; |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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parents:
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|
630 } |
|
1336
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Use SDL_ prefixed versions of C library functions.
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diff
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|
631 if ( SDL_getenv("SDL_FB_BROKEN_MODES") != NULL ) { |
|
1215
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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diff
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|
632 FB_AddMode(this, current_index, current_w, current_h, 0); |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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diff
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|
633 } else if(modesdb) { |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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parents:
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diff
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|
634 while ( read_fbmodes_mode(modesdb, &vinfo) ) { |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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parents:
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diff
changeset
|
635 for ( i=0; i<NUM_MODELISTS; ++i ) { |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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parents:
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diff
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|
636 unsigned int w, h; |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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parents:
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diff
changeset
|
637 |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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parents:
1036
diff
changeset
|
638 /* See if we are querying for the current mode */ |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
639 w = vinfo.xres; |
|
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
|
640 h = vinfo.yres; |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
641 if ( i == current_index ) { |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
642 if ( (current_w > w) || (current_h > h) ) { |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
643 /* Only check once */ |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
644 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
|
645 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
|
646 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
647 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
648 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
|
649 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
|
650 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
651 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
652 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
653 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
|
654 FB_SortModes(this); |
|
941
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
655 } else { |
|
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
656 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
|
657 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
|
658 unsigned int w, h; |
| 0 | 659 |
|
941
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
660 /* 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
|
661 w = checkres[j].w; |
|
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
662 h = checkres[j].h; |
|
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
663 if ( i == current_index ) { |
|
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
664 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
|
665 /* Only check once */ |
|
1215
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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diff
changeset
|
666 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
|
667 current_index = -1; |
|
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
668 } |
| 0 | 669 } |
|
941
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
670 if ( FB_CheckMode(this, &vinfo, i, &w, &h) ) { |
|
1215
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
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parents:
1036
diff
changeset
|
671 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
|
672 } |
| 0 | 673 } |
| 674 } | |
| 675 } | |
| 676 | |
| 677 /* 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
|
678 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
|
679 this->info.current_h = current_h; |
| 0 | 680 this->info.wm_available = 0; |
| 681 this->info.hw_available = 1; | |
| 682 this->info.video_mem = finfo.smem_len/1024; | |
| 683 if ( mapped_io ) { | |
| 684 switch (finfo.accel) { | |
| 685 case FB_ACCEL_MATROX_MGA2064W: | |
| 686 case FB_ACCEL_MATROX_MGA1064SG: | |
| 687 case FB_ACCEL_MATROX_MGA2164W: | |
| 688 case FB_ACCEL_MATROX_MGA2164W_AGP: | |
| 689 case FB_ACCEL_MATROX_MGAG100: | |
| 690 /*case FB_ACCEL_MATROX_MGAG200: G200 acceleration broken! */ | |
| 691 case FB_ACCEL_MATROX_MGAG400: | |
| 692 #ifdef FBACCEL_DEBUG | |
| 693 printf("Matrox hardware accelerator!\n"); | |
| 694 #endif | |
| 695 FB_MatroxAccel(this, finfo.accel); | |
| 696 break; | |
| 697 case FB_ACCEL_3DFX_BANSHEE: | |
| 698 #ifdef FBACCEL_DEBUG | |
| 699 printf("3DFX hardware accelerator!\n"); | |
| 700 #endif | |
| 701 FB_3DfxAccel(this, finfo.accel); | |
| 702 break; | |
|
133
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
106
diff
changeset
|
703 case FB_ACCEL_NV3: |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
106
diff
changeset
|
704 case FB_ACCEL_NV4: |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
106
diff
changeset
|
705 #ifdef FBACCEL_DEBUG |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
106
diff
changeset
|
706 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
|
707 #endif |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
106
diff
changeset
|
708 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
|
709 break; |
| 0 | 710 default: |
| 711 #ifdef FBACCEL_DEBUG | |
| 712 printf("Unknown hardware accelerator.\n"); | |
| 713 #endif | |
| 714 break; | |
| 715 } | |
| 716 } | |
| 717 | |
| 718 /* Enable mouse and keyboard support */ | |
| 719 if ( FB_OpenKeyboard(this) < 0 ) { | |
| 720 FB_VideoQuit(this); | |
| 721 return(-1); | |
| 722 } | |
| 723 if ( FB_OpenMouse(this) < 0 ) { | |
| 724 const char *sdl_nomouse; | |
| 725 | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
726 sdl_nomouse = SDL_getenv("SDL_NOMOUSE"); |
| 0 | 727 if ( ! sdl_nomouse ) { |
| 728 SDL_SetError("Unable to open mouse"); | |
| 729 FB_VideoQuit(this); | |
| 730 return(-1); | |
| 731 } | |
| 732 } | |
| 733 | |
| 734 /* We're done! */ | |
| 735 return(0); | |
| 736 } | |
| 737 | |
| 738 static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) | |
| 739 { | |
| 740 return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]); | |
| 741 } | |
| 742 | |
| 743 /* Various screen update functions available */ | |
| 744 static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); | |
| 745 #ifdef VGA16_FBCON_SUPPORT | |
| 746 static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects); | |
| 747 #endif | |
| 748 | |
| 749 #ifdef FBCON_DEBUG | |
| 750 static void print_vinfo(struct fb_var_screeninfo *vinfo) | |
| 751 { | |
| 752 fprintf(stderr, "Printing vinfo:\n"); | |
| 753 fprintf(stderr, "\txres: %d\n", vinfo->xres); | |
| 754 fprintf(stderr, "\tyres: %d\n", vinfo->yres); | |
| 755 fprintf(stderr, "\txres_virtual: %d\n", vinfo->xres_virtual); | |
| 756 fprintf(stderr, "\tyres_virtual: %d\n", vinfo->yres_virtual); | |
| 757 fprintf(stderr, "\txoffset: %d\n", vinfo->xoffset); | |
| 758 fprintf(stderr, "\tyoffset: %d\n", vinfo->yoffset); | |
| 759 fprintf(stderr, "\tbits_per_pixel: %d\n", vinfo->bits_per_pixel); | |
| 760 fprintf(stderr, "\tgrayscale: %d\n", vinfo->grayscale); | |
| 761 fprintf(stderr, "\tnonstd: %d\n", vinfo->nonstd); | |
| 762 fprintf(stderr, "\tactivate: %d\n", vinfo->activate); | |
| 763 fprintf(stderr, "\theight: %d\n", vinfo->height); | |
| 764 fprintf(stderr, "\twidth: %d\n", vinfo->width); | |
| 765 fprintf(stderr, "\taccel_flags: %d\n", vinfo->accel_flags); | |
| 766 fprintf(stderr, "\tpixclock: %d\n", vinfo->pixclock); | |
| 767 fprintf(stderr, "\tleft_margin: %d\n", vinfo->left_margin); | |
| 768 fprintf(stderr, "\tright_margin: %d\n", vinfo->right_margin); | |
| 769 fprintf(stderr, "\tupper_margin: %d\n", vinfo->upper_margin); | |
| 770 fprintf(stderr, "\tlower_margin: %d\n", vinfo->lower_margin); | |
| 771 fprintf(stderr, "\thsync_len: %d\n", vinfo->hsync_len); | |
| 772 fprintf(stderr, "\tvsync_len: %d\n", vinfo->vsync_len); | |
| 773 fprintf(stderr, "\tsync: %d\n", vinfo->sync); | |
| 774 fprintf(stderr, "\tvmode: %d\n", vinfo->vmode); | |
| 775 fprintf(stderr, "\tred: %d/%d\n", vinfo->red.length, vinfo->red.offset); | |
| 776 fprintf(stderr, "\tgreen: %d/%d\n", vinfo->green.length, vinfo->green.offset); | |
| 777 fprintf(stderr, "\tblue: %d/%d\n", vinfo->blue.length, vinfo->blue.offset); | |
| 778 fprintf(stderr, "\talpha: %d/%d\n", vinfo->transp.length, vinfo->transp.offset); | |
| 779 } | |
| 780 static void print_finfo(struct fb_fix_screeninfo *finfo) | |
| 781 { | |
| 782 fprintf(stderr, "Printing finfo:\n"); | |
| 783 fprintf(stderr, "\tsmem_start = %p\n", (char *)finfo->smem_start); | |
| 784 fprintf(stderr, "\tsmem_len = %d\n", finfo->smem_len); | |
| 785 fprintf(stderr, "\ttype = %d\n", finfo->type); | |
| 786 fprintf(stderr, "\ttype_aux = %d\n", finfo->type_aux); | |
| 787 fprintf(stderr, "\tvisual = %d\n", finfo->visual); | |
| 788 fprintf(stderr, "\txpanstep = %d\n", finfo->xpanstep); | |
| 789 fprintf(stderr, "\typanstep = %d\n", finfo->ypanstep); | |
| 790 fprintf(stderr, "\tywrapstep = %d\n", finfo->ywrapstep); | |
| 791 fprintf(stderr, "\tline_length = %d\n", finfo->line_length); | |
| 792 fprintf(stderr, "\tmmio_start = %p\n", (char *)finfo->mmio_start); | |
| 793 fprintf(stderr, "\tmmio_len = %d\n", finfo->mmio_len); | |
| 794 fprintf(stderr, "\taccel = %d\n", finfo->accel); | |
| 795 } | |
| 796 #endif | |
| 797 | |
| 798 static int choose_fbmodes_mode(struct fb_var_screeninfo *vinfo) | |
| 799 { | |
| 800 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
|
801 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
|
802 struct fb_var_screeninfo cinfo; |
| 0 | 803 |
| 804 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
|
805 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
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|
806 if ( modesdb ) { |
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807 /* Parse the mode definition file */ |
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808 while ( read_fbmodes_mode(modesdb, &cinfo) ) { |
|
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809 if ( (vinfo->xres == cinfo.xres && vinfo->yres == cinfo.yres) && |
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810 (!matched || (vinfo->bits_per_pixel == cinfo.bits_per_pixel)) ) { |
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811 vinfo->pixclock = cinfo.pixclock; |
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812 vinfo->left_margin = cinfo.left_margin; |
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813 vinfo->right_margin = cinfo.right_margin; |
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814 vinfo->upper_margin = cinfo.upper_margin; |
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815 vinfo->lower_margin = cinfo.lower_margin; |
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816 vinfo->hsync_len = cinfo.hsync_len; |
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817 vinfo->vsync_len = cinfo.vsync_len; |
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818 if ( matched ) { |
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819 break; |
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820 } |
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821 matched = 1; |
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822 } |
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823 } |
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824 fclose(modesdb); |
| 0 | 825 } |
| 826 return(matched); | |
| 827 } | |
| 828 | |
| 829 static int choose_vesa_mode(struct fb_var_screeninfo *vinfo) | |
| 830 { | |
| 831 int matched; | |
| 832 int i; | |
| 833 | |
| 834 /* Check for VESA timings */ | |
| 835 matched = 0; | |
| 836 for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { | |
| 837 if ( (vinfo->xres == vesa_timings[i].xres) && | |
| 838 (vinfo->yres == vesa_timings[i].yres) ) { | |
| 839 #ifdef FBCON_DEBUG | |
| 840 fprintf(stderr, "Using VESA timings for %dx%d\n", | |
| 841 vinfo->xres, vinfo->yres); | |
| 842 #endif | |
| 843 if ( vesa_timings[i].pixclock ) { | |
| 844 vinfo->pixclock = vesa_timings[i].pixclock; | |
| 845 } | |
| 846 vinfo->left_margin = vesa_timings[i].left; | |
| 847 vinfo->right_margin = vesa_timings[i].right; | |
| 848 vinfo->upper_margin = vesa_timings[i].upper; | |
| 849 vinfo->lower_margin = vesa_timings[i].lower; | |
| 850 vinfo->hsync_len = vesa_timings[i].hslen; | |
| 851 vinfo->vsync_len = vesa_timings[i].vslen; | |
| 852 vinfo->sync = vesa_timings[i].sync; | |
| 853 vinfo->vmode = vesa_timings[i].vmode; | |
| 854 matched = 1; | |
| 855 break; | |
| 856 } | |
| 857 } | |
| 858 return(matched); | |
| 859 } | |
| 860 | |
| 861 #ifdef VGA16_FBCON_SUPPORT | |
| 862 static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, | |
| 863 int width, int height, int bpp, Uint32 flags) | |
| 864 { | |
| 865 struct fb_fix_screeninfo finfo; | |
| 866 struct fb_var_screeninfo vinfo; | |
| 867 | |
| 868 /* Set the terminal into graphics mode */ | |
| 869 if ( FB_EnterGraphicsMode(this) < 0 ) { | |
| 870 return(NULL); | |
| 871 } | |
| 872 | |
| 873 /* Restore the original palette */ | |
| 874 FB_RestorePalette(this); | |
| 875 | |
| 876 /* Set the video mode and get the final screen format */ | |
| 877 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 878 SDL_SetError("Couldn't get console screen info"); | |
| 879 return(NULL); | |
| 880 } | |
| 881 cache_vinfo = vinfo; | |
| 882 #ifdef FBCON_DEBUG | |
| 883 fprintf(stderr, "Printing actual vinfo:\n"); | |
| 884 print_vinfo(&vinfo); | |
| 885 #endif | |
| 886 if ( ! SDL_ReallocFormat(current, bpp, 0, 0, 0, 0) ) { | |
| 887 return(NULL); | |
| 888 } | |
|
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889 current->format->palette->ncolors = 16; |
| 0 | 890 |
| 891 /* Get the fixed information about the console hardware. | |
| 892 This is necessary since finfo.line_length changes. | |
| 893 */ | |
| 894 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 895 SDL_SetError("Couldn't get console hardware info"); | |
| 896 return(NULL); | |
| 897 } | |
| 898 #ifdef FBCON_DEBUG | |
| 899 fprintf(stderr, "Printing actual finfo:\n"); | |
| 900 print_finfo(&finfo); | |
| 901 #endif | |
| 902 | |
| 903 /* Save hardware palette, if needed */ | |
| 904 FB_SavePalette(this, &finfo, &vinfo); | |
| 905 | |
| 906 /* Set up the new mode framebuffer */ | |
| 907 current->flags = SDL_FULLSCREEN; | |
| 908 current->w = vinfo.xres; | |
| 909 current->h = vinfo.yres; | |
| 910 current->pitch = current->w; | |
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911 current->pixels = SDL_malloc(current->h*current->pitch); |
| 0 | 912 |
| 913 /* Set the update rectangle function */ | |
| 914 this->UpdateRects = FB_VGA16Update; | |
| 915 | |
| 916 /* We're done */ | |
| 917 return(current); | |
| 918 } | |
| 919 #endif /* VGA16_FBCON_SUPPORT */ | |
| 920 | |
| 921 static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, | |
| 922 int width, int height, int bpp, Uint32 flags) | |
| 923 { | |
| 924 struct fb_fix_screeninfo finfo; | |
| 925 struct fb_var_screeninfo vinfo; | |
| 926 int i; | |
| 927 Uint32 Rmask; | |
| 928 Uint32 Gmask; | |
| 929 Uint32 Bmask; | |
| 930 char *surfaces_mem; | |
| 931 int surfaces_len; | |
| 932 | |
| 933 /* Set the terminal into graphics mode */ | |
| 934 if ( FB_EnterGraphicsMode(this) < 0 ) { | |
| 935 return(NULL); | |
| 936 } | |
| 937 | |
| 938 /* Restore the original palette */ | |
| 939 FB_RestorePalette(this); | |
| 940 | |
| 941 /* Set the video mode and get the final screen format */ | |
| 942 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 943 SDL_SetError("Couldn't get console screen info"); | |
| 944 return(NULL); | |
| 945 } | |
| 946 #ifdef FBCON_DEBUG | |
| 947 fprintf(stderr, "Printing original vinfo:\n"); | |
| 948 print_vinfo(&vinfo); | |
| 949 #endif | |
| 950 if ( (vinfo.xres != width) || (vinfo.yres != height) || | |
| 951 (vinfo.bits_per_pixel != bpp) || (flags & SDL_DOUBLEBUF) ) { | |
| 952 vinfo.activate = FB_ACTIVATE_NOW; | |
| 953 vinfo.accel_flags = 0; | |
| 954 vinfo.bits_per_pixel = bpp; | |
| 955 vinfo.xres = width; | |
| 956 vinfo.xres_virtual = width; | |
| 957 vinfo.yres = height; | |
| 958 if ( flags & SDL_DOUBLEBUF ) { | |
| 959 vinfo.yres_virtual = height*2; | |
| 960 } else { | |
| 961 vinfo.yres_virtual = height; | |
| 962 } | |
| 963 vinfo.xoffset = 0; | |
| 964 vinfo.yoffset = 0; | |
| 965 vinfo.red.length = vinfo.red.offset = 0; | |
| 966 vinfo.green.length = vinfo.green.offset = 0; | |
| 967 vinfo.blue.length = vinfo.blue.offset = 0; | |
| 968 vinfo.transp.length = vinfo.transp.offset = 0; | |
| 969 if ( ! choose_fbmodes_mode(&vinfo) ) { | |
| 970 choose_vesa_mode(&vinfo); | |
| 971 } | |
| 972 #ifdef FBCON_DEBUG | |
| 973 fprintf(stderr, "Printing wanted vinfo:\n"); | |
| 974 print_vinfo(&vinfo); | |
| 975 #endif | |
| 976 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { | |
| 977 vinfo.yres_virtual = height; | |
| 978 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { | |
| 979 SDL_SetError("Couldn't set console screen info"); | |
| 980 return(NULL); | |
| 981 } | |
| 982 } | |
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983 } else { |
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984 int maxheight; |
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985 |
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986 /* Figure out how much video memory is available */ |
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987 if ( flags & SDL_DOUBLEBUF ) { |
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988 maxheight = height*2; |
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989 } else { |
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990 maxheight = height; |
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991 } |
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992 if ( vinfo.yres_virtual > maxheight ) { |
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993 vinfo.yres_virtual = maxheight; |
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994 } |
| 0 | 995 } |
| 996 cache_vinfo = vinfo; | |
| 997 #ifdef FBCON_DEBUG | |
| 998 fprintf(stderr, "Printing actual vinfo:\n"); | |
| 999 print_vinfo(&vinfo); | |
| 1000 #endif | |
| 1001 Rmask = 0; | |
| 1002 for ( i=0; i<vinfo.red.length; ++i ) { | |
| 1003 Rmask <<= 1; | |
| 1004 Rmask |= (0x00000001<<vinfo.red.offset); | |
| 1005 } | |
| 1006 Gmask = 0; | |
| 1007 for ( i=0; i<vinfo.green.length; ++i ) { | |
| 1008 Gmask <<= 1; | |
| 1009 Gmask |= (0x00000001<<vinfo.green.offset); | |
| 1010 } | |
| 1011 Bmask = 0; | |
| 1012 for ( i=0; i<vinfo.blue.length; ++i ) { | |
| 1013 Bmask <<= 1; | |
| 1014 Bmask |= (0x00000001<<vinfo.blue.offset); | |
| 1015 } | |
| 1016 if ( ! SDL_ReallocFormat(current, vinfo.bits_per_pixel, | |
| 1017 Rmask, Gmask, Bmask, 0) ) { | |
| 1018 return(NULL); | |
| 1019 } | |
| 1020 | |
| 1021 /* Get the fixed information about the console hardware. | |
| 1022 This is necessary since finfo.line_length changes. | |
| 1023 */ | |
| 1024 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 1025 SDL_SetError("Couldn't get console hardware info"); | |
| 1026 return(NULL); | |
| 1027 } | |
| 1028 | |
| 1029 /* Save hardware palette, if needed */ | |
| 1030 FB_SavePalette(this, &finfo, &vinfo); | |
| 1031 | |
| 1032 /* Set up the new mode framebuffer */ | |
| 1033 current->flags = (SDL_FULLSCREEN|SDL_HWSURFACE); | |
| 1034 current->w = vinfo.xres; | |
| 1035 current->h = vinfo.yres; | |
| 1036 current->pitch = finfo.line_length; | |
| 1037 current->pixels = mapped_mem+mapped_offset; | |
| 1038 | |
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1039 /* Set up the information for hardware surfaces */ |
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1040 surfaces_mem = (char *)current->pixels + |
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1041 vinfo.yres_virtual*current->pitch; |
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1042 surfaces_len = (mapped_memlen-(surfaces_mem-mapped_mem)); |
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1043 FB_FreeHWSurfaces(this); |
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1044 FB_InitHWSurfaces(this, current, surfaces_mem, surfaces_len); |
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1045 |
| 0 | 1046 /* Let the application know we have a hardware palette */ |
| 1047 switch (finfo.visual) { | |
| 1048 case FB_VISUAL_PSEUDOCOLOR: | |
| 1049 current->flags |= SDL_HWPALETTE; | |
| 1050 break; | |
| 1051 default: | |
| 1052 break; | |
| 1053 } | |
| 1054 | |
| 1055 /* Update for double-buffering, if we can */ | |
| 1056 if ( flags & SDL_DOUBLEBUF ) { | |
| 1057 if ( vinfo.yres_virtual == (height*2) ) { | |
| 1058 current->flags |= SDL_DOUBLEBUF; | |
| 1059 flip_page = 0; | |
| 1060 flip_address[0] = (char *)current->pixels; | |
| 1061 flip_address[1] = (char *)current->pixels+ | |
| 1062 current->h*current->pitch; | |
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1063 this->screen = current; |
| 0 | 1064 FB_FlipHWSurface(this, current); |
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1065 this->screen = NULL; |
| 0 | 1066 } |
| 1067 } | |
| 1068 | |
| 1069 /* Set the update rectangle function */ | |
| 1070 this->UpdateRects = FB_DirectUpdate; | |
| 1071 | |
| 1072 /* We're done */ | |
| 1073 return(current); | |
| 1074 } | |
| 1075 | |
| 1076 #ifdef FBCON_DEBUG | |
| 1077 void FB_DumpHWSurfaces(_THIS) | |
| 1078 { | |
| 1079 vidmem_bucket *bucket; | |
| 1080 | |
| 1081 printf("Memory left: %d (%d total)\n", surfaces_memleft, surfaces_memtotal); | |
| 1082 printf("\n"); | |
| 1083 printf(" Base Size\n"); | |
| 1084 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 1085 printf("Bucket: %p, %d (%s)\n", bucket->base, bucket->size, bucket->used ? "used" : "free"); | |
| 1086 if ( bucket->prev ) { | |
| 1087 if ( bucket->base != bucket->prev->base+bucket->prev->size ) { | |
| 1088 printf("Warning, corrupt bucket list! (prev)\n"); | |
| 1089 } | |
| 1090 } else { | |
| 1091 if ( bucket != &surfaces ) { | |
| 1092 printf("Warning, corrupt bucket list! (!prev)\n"); | |
| 1093 } | |
| 1094 } | |
| 1095 if ( bucket->next ) { | |
| 1096 if ( bucket->next->base != bucket->base+bucket->size ) { | |
| 1097 printf("Warning, corrupt bucket list! (next)\n"); | |
| 1098 } | |
| 1099 } | |
| 1100 } | |
| 1101 printf("\n"); | |
| 1102 } | |
| 1103 #endif | |
| 1104 | |
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1105 static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size) |
| 0 | 1106 { |
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1107 vidmem_bucket *bucket; |
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1108 |
| 0 | 1109 surfaces_memtotal = size; |
| 1110 surfaces_memleft = size; | |
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1111 |
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1112 if ( surfaces_memleft > 0 ) { |
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1113 bucket = (vidmem_bucket *)SDL_malloc(sizeof(*bucket)); |
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1114 if ( bucket == NULL ) { |
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1115 SDL_OutOfMemory(); |
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1116 return(-1); |
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1117 } |
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1118 bucket->prev = &surfaces; |
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1119 bucket->used = 0; |
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1120 bucket->dirty = 0; |
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1121 bucket->base = base; |
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1122 bucket->size = size; |
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1123 bucket->next = NULL; |
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1124 } else { |
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1125 bucket = NULL; |
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1126 } |
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1127 |
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1128 surfaces.prev = NULL; |
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1129 surfaces.used = 1; |
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1130 surfaces.dirty = 0; |
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1131 surfaces.base = screen->pixels; |
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1132 surfaces.size = (unsigned int)((long)base - (long)surfaces.base); |
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1133 surfaces.next = bucket; |
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1134 screen->hwdata = (struct private_hwdata *)&surfaces; |
| 0 | 1135 return(0); |
| 1136 } | |
| 1137 static void FB_FreeHWSurfaces(_THIS) | |
| 1138 { | |
| 1139 vidmem_bucket *bucket, *freeable; | |
| 1140 | |
| 1141 bucket = surfaces.next; | |
| 1142 while ( bucket ) { | |
| 1143 freeable = bucket; | |
| 1144 bucket = bucket->next; | |
|
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1145 SDL_free(freeable); |
| 0 | 1146 } |
| 1147 surfaces.next = NULL; | |
| 1148 } | |
| 1149 | |
| 1150 static int FB_AllocHWSurface(_THIS, SDL_Surface *surface) | |
| 1151 { | |
| 1152 vidmem_bucket *bucket; | |
| 1153 int size; | |
| 1154 int extra; | |
| 1155 | |
| 1156 /* Temporarily, we only allow surfaces the same width as display. | |
| 1157 Some blitters require the pitch between two hardware surfaces | |
| 1158 to be the same. Others have interesting alignment restrictions. | |
| 1159 Until someone who knows these details looks at the code... | |
| 1160 */ | |
| 1161 if ( surface->pitch > SDL_VideoSurface->pitch ) { | |
| 1162 SDL_SetError("Surface requested wider than screen"); | |
| 1163 return(-1); | |
| 1164 } | |
| 1165 surface->pitch = SDL_VideoSurface->pitch; | |
| 1166 size = surface->h * surface->pitch; | |
| 1167 #ifdef FBCON_DEBUG | |
| 1168 fprintf(stderr, "Allocating bucket of %d bytes\n", size); | |
| 1169 #endif | |
| 1170 | |
| 1171 /* Quick check for available mem */ | |
| 1172 if ( size > surfaces_memleft ) { | |
| 1173 SDL_SetError("Not enough video memory"); | |
| 1174 return(-1); | |
| 1175 } | |
| 1176 | |
| 1177 /* Search for an empty bucket big enough */ | |
| 1178 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 1179 if ( ! bucket->used && (size <= bucket->size) ) { | |
| 1180 break; | |
| 1181 } | |
| 1182 } | |
| 1183 if ( bucket == NULL ) { | |
| 1184 SDL_SetError("Video memory too fragmented"); | |
| 1185 return(-1); | |
| 1186 } | |
| 1187 | |
| 1188 /* Create a new bucket for left-over memory */ | |
| 1189 extra = (bucket->size - size); | |
| 1190 if ( extra ) { | |
| 1191 vidmem_bucket *newbucket; | |
| 1192 | |
| 1193 #ifdef FBCON_DEBUG | |
| 1194 fprintf(stderr, "Adding new free bucket of %d bytes\n", extra); | |
| 1195 #endif | |
|
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1196 newbucket = (vidmem_bucket *)SDL_malloc(sizeof(*newbucket)); |
| 0 | 1197 if ( newbucket == NULL ) { |
| 1198 SDL_OutOfMemory(); | |
| 1199 return(-1); | |
| 1200 } | |
| 1201 newbucket->prev = bucket; | |
| 1202 newbucket->used = 0; | |
| 1203 newbucket->base = bucket->base+size; | |
| 1204 newbucket->size = extra; | |
| 1205 newbucket->next = bucket->next; | |
| 1206 if ( bucket->next ) { | |
| 1207 bucket->next->prev = newbucket; | |
| 1208 } | |
| 1209 bucket->next = newbucket; | |
| 1210 } | |
| 1211 | |
| 1212 /* Set the current bucket values and return it! */ | |
| 1213 bucket->used = 1; | |
| 1214 bucket->size = size; | |
|
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1215 bucket->dirty = 0; |
| 0 | 1216 #ifdef FBCON_DEBUG |
| 1217 fprintf(stderr, "Allocated %d bytes at %p\n", bucket->size, bucket->base); | |
| 1218 #endif | |
| 1219 surfaces_memleft -= size; | |
| 1220 surface->flags |= SDL_HWSURFACE; | |
| 1221 surface->pixels = bucket->base; | |
|
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1222 surface->hwdata = (struct private_hwdata *)bucket; |
| 0 | 1223 return(0); |
| 1224 } | |
| 1225 static void FB_FreeHWSurface(_THIS, SDL_Surface *surface) | |
| 1226 { | |
| 1227 vidmem_bucket *bucket, *freeable; | |
| 1228 | |
| 1229 /* Look for the bucket in the current list */ | |
| 1230 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
|
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1231 if ( bucket == (vidmem_bucket *)surface->hwdata ) { |
| 0 | 1232 break; |
| 1233 } | |
| 1234 } | |
|
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1235 if ( bucket && bucket->used ) { |
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1236 /* Add the memory back to the total */ |
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1237 #ifdef DGA_DEBUG |
| 0 | 1238 printf("Freeing bucket of %d bytes\n", bucket->size); |
| 1239 #endif | |
|
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1240 surfaces_memleft += bucket->size; |
| 0 | 1241 |
|
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1242 /* Can we merge the space with surrounding buckets? */ |
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1243 bucket->used = 0; |
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1244 if ( bucket->next && ! bucket->next->used ) { |
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1245 #ifdef DGA_DEBUG |
| 0 | 1246 printf("Merging with next bucket, for %d total bytes\n", bucket->size+bucket->next->size); |
| 1247 #endif | |
|
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1248 freeable = bucket->next; |
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1249 bucket->size += bucket->next->size; |
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1250 bucket->next = bucket->next->next; |
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1251 if ( bucket->next ) { |
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1252 bucket->next->prev = bucket; |
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1253 } |
|
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1254 SDL_free(freeable); |
| 0 | 1255 } |
|
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1256 if ( bucket->prev && ! bucket->prev->used ) { |
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1257 #ifdef DGA_DEBUG |
| 0 | 1258 printf("Merging with previous bucket, for %d total bytes\n", bucket->prev->size+bucket->size); |
| 1259 #endif | |
|
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1260 freeable = bucket; |
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1261 bucket->prev->size += bucket->size; |
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1262 bucket->prev->next = bucket->next; |
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1263 if ( bucket->next ) { |
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1264 bucket->next->prev = bucket->prev; |
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1265 } |
|
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1266 SDL_free(freeable); |
| 0 | 1267 } |
| 1268 } | |
| 1269 surface->pixels = NULL; | |
|
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1270 surface->hwdata = NULL; |
| 0 | 1271 } |
|
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1272 |
| 0 | 1273 static int FB_LockHWSurface(_THIS, SDL_Surface *surface) |
| 1274 { | |
| 1780 | 1275 if ( switched_away ) { |
| 1276 return -2; /* no hardware access */ | |
|
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1277 } |
|
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1278 if ( surface == this->screen ) { |
| 0 | 1279 SDL_mutexP(hw_lock); |
|
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1280 if ( FB_IsSurfaceBusy(surface) ) { |
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1281 FB_WaitBusySurfaces(this); |
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1282 } |
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1283 } else { |
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1284 if ( FB_IsSurfaceBusy(surface) ) { |
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1285 FB_WaitBusySurfaces(this); |
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1286 } |
| 0 | 1287 } |
| 1288 return(0); | |
| 1289 } | |
| 1290 static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
| 1291 { | |
|
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1292 if ( surface == this->screen ) { |
| 0 | 1293 SDL_mutexV(hw_lock); |
| 1294 } | |
| 1295 } | |
| 1296 | |
| 1297 static void FB_WaitVBL(_THIS) | |
| 1298 { | |
| 1299 #ifdef FBIOWAITRETRACE /* Heheh, this didn't make it into the main kernel */ | |
| 1300 ioctl(console_fd, FBIOWAITRETRACE, 0); | |
| 1301 #endif | |
| 1302 return; | |
| 1303 } | |
| 1304 | |
|
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1305 static void FB_WaitIdle(_THIS) |
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1306 { |
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1307 return; |
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1308 } |
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1309 |
| 0 | 1310 static int FB_FlipHWSurface(_THIS, SDL_Surface *surface) |
| 1311 { | |
| 1780 | 1312 if ( switched_away ) { |
| 1313 return -2; /* no hardware access */ | |
| 1314 } | |
| 1315 | |
| 0 | 1316 /* Wait for vertical retrace and then flip display */ |
| 1317 cache_vinfo.yoffset = flip_page*surface->h; | |
|
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1318 if ( FB_IsSurfaceBusy(this->screen) ) { |
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1319 FB_WaitBusySurfaces(this); |
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1320 } |
| 0 | 1321 wait_vbl(this); |
| 1322 if ( ioctl(console_fd, FBIOPAN_DISPLAY, &cache_vinfo) < 0 ) { | |
| 1323 SDL_SetError("ioctl(FBIOPAN_DISPLAY) failed"); | |
| 1324 return(-1); | |
| 1325 } | |
| 1326 flip_page = !flip_page; | |
| 1327 | |
| 1328 surface->pixels = flip_address[flip_page]; | |
| 1329 return(0); | |
| 1330 } | |
| 1331 | |
| 1332 static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) | |
| 1333 { | |
| 1334 /* The application is already updating the visible video memory */ | |
| 1335 return; | |
| 1336 } | |
| 1337 | |
| 1338 #ifdef VGA16_FBCON_SUPPORT | |
| 1339 /* Code adapted with thanks from the XFree86 VGA16 driver! :) */ | |
| 1340 #define writeGr(index, value) \ | |
| 1341 outb(index, 0x3CE); \ | |
| 1342 outb(value, 0x3CF); | |
| 1343 #define writeSeq(index, value) \ | |
| 1344 outb(index, 0x3C4); \ | |
| 1345 outb(value, 0x3C5); | |
| 1346 | |
| 1347 static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects) | |
| 1348 { | |
| 1349 SDL_Surface *screen; | |
| 1350 int width, height, FBPitch, left, i, j, SRCPitch, phase; | |
| 1351 register Uint32 m; | |
| 1352 Uint8 s1, s2, s3, s4; | |
| 1353 Uint32 *src, *srcPtr; | |
| 1354 Uint8 *dst, *dstPtr; | |
| 1355 | |
| 1780 | 1356 if ( switched_away ) { |
| 1357 return; /* no hardware access */ | |
| 1358 } | |
| 1359 | |
| 0 | 1360 screen = this->screen; |
| 1361 FBPitch = screen->w >> 3; | |
| 1362 SRCPitch = screen->pitch >> 2; | |
| 1363 | |
| 1364 writeGr(0x03, 0x00); | |
| 1365 writeGr(0x05, 0x00); | |
| 1366 writeGr(0x01, 0x00); | |
| 1367 writeGr(0x08, 0xFF); | |
| 1368 | |
| 1369 while(numrects--) { | |
| 1370 left = rects->x & ~7; | |
| 1371 width = (rects->w + 7) >> 3; | |
| 1372 height = rects->h; | |
| 1373 src = (Uint32*)screen->pixels + (rects->y * SRCPitch) + (left >> 2); | |
| 1374 dst = (Uint8*)mapped_mem + (rects->y * FBPitch) + (left >> 3); | |
| 1375 | |
| 1376 if((phase = (long)dst & 3L)) { | |
| 1377 phase = 4 - phase; | |
| 1378 if(phase > width) phase = width; | |
| 1379 width -= phase; | |
| 1380 } | |
| 1381 | |
| 1382 while(height--) { | |
| 1383 writeSeq(0x02, 1 << 0); | |
| 1384 dstPtr = dst; | |
| 1385 srcPtr = src; | |
| 1386 i = width; | |
| 1387 j = phase; | |
| 1388 while(j--) { | |
| 1389 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1390 *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1391 srcPtr += 2; | |
| 1392 } | |
| 1393 while(i >= 4) { | |
| 1394 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1395 s1 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1396 m = (srcPtr[3] & 0x01010101) | ((srcPtr[2] & 0x01010101) << 4); | |
| 1397 s2 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1398 m = (srcPtr[5] & 0x01010101) | ((srcPtr[4] & 0x01010101) << 4); | |
| 1399 s3 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1400 m = (srcPtr[7] & 0x01010101) | ((srcPtr[6] & 0x01010101) << 4); | |
| 1401 s4 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1402 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1403 srcPtr += 8; | |
| 1404 dstPtr += 4; | |
| 1405 i -= 4; | |
| 1406 } | |
| 1407 while(i--) { | |
| 1408 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1409 *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1410 srcPtr += 2; | |
| 1411 } | |
| 1412 | |
| 1413 writeSeq(0x02, 1 << 1); | |
| 1414 dstPtr = dst; | |
| 1415 srcPtr = src; | |
| 1416 i = width; | |
| 1417 j = phase; | |
| 1418 while(j--) { | |
| 1419 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1420 *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1421 srcPtr += 2; | |
| 1422 } | |
| 1423 while(i >= 4) { | |
| 1424 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1425 s1 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1426 m = (srcPtr[3] & 0x02020202) | ((srcPtr[2] & 0x02020202) << 4); | |
| 1427 s2 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1428 m = (srcPtr[5] & 0x02020202) | ((srcPtr[4] & 0x02020202) << 4); | |
| 1429 s3 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1430 m = (srcPtr[7] & 0x02020202) | ((srcPtr[6] & 0x02020202) << 4); | |
| 1431 s4 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1432 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1433 srcPtr += 8; | |
| 1434 dstPtr += 4; | |
| 1435 i -= 4; | |
| 1436 } | |
| 1437 while(i--) { | |
| 1438 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1439 *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1440 srcPtr += 2; | |
| 1441 } | |
| 1442 | |
| 1443 writeSeq(0x02, 1 << 2); | |
| 1444 dstPtr = dst; | |
| 1445 srcPtr = src; | |
| 1446 i = width; | |
| 1447 j = phase; | |
| 1448 while(j--) { | |
| 1449 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1450 *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1451 srcPtr += 2; | |
| 1452 } | |
| 1453 while(i >= 4) { | |
| 1454 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1455 s1 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1456 m = (srcPtr[3] & 0x04040404) | ((srcPtr[2] & 0x04040404) << 4); | |
| 1457 s2 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1458 m = (srcPtr[5] & 0x04040404) | ((srcPtr[4] & 0x04040404) << 4); | |
| 1459 s3 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1460 m = (srcPtr[7] & 0x04040404) | ((srcPtr[6] & 0x04040404) << 4); | |
| 1461 s4 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1462 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1463 srcPtr += 8; | |
| 1464 dstPtr += 4; | |
| 1465 i -= 4; | |
| 1466 } | |
| 1467 while(i--) { | |
| 1468 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1469 *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1470 srcPtr += 2; | |
| 1471 } | |
| 1472 | |
| 1473 writeSeq(0x02, 1 << 3); | |
| 1474 dstPtr = dst; | |
| 1475 srcPtr = src; | |
| 1476 i = width; | |
| 1477 j = phase; | |
| 1478 while(j--) { | |
| 1479 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1480 *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1481 srcPtr += 2; | |
| 1482 } | |
| 1483 while(i >= 4) { | |
| 1484 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1485 s1 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1486 m = (srcPtr[3] & 0x08080808) | ((srcPtr[2] & 0x08080808) << 4); | |
| 1487 s2 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1488 m = (srcPtr[5] & 0x08080808) | ((srcPtr[4] & 0x08080808) << 4); | |
| 1489 s3 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1490 m = (srcPtr[7] & 0x08080808) | ((srcPtr[6] & 0x08080808) << 4); | |
| 1491 s4 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1492 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1493 srcPtr += 8; | |
| 1494 dstPtr += 4; | |
| 1495 i -= 4; | |
| 1496 } | |
| 1497 while(i--) { | |
| 1498 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1499 *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1500 srcPtr += 2; | |
| 1501 } | |
| 1502 | |
| 1503 dst += FBPitch; | |
| 1504 src += SRCPitch; | |
| 1505 } | |
| 1506 rects++; | |
| 1507 } | |
| 1508 } | |
| 1509 #endif /* VGA16_FBCON_SUPPORT */ | |
| 1510 | |
| 1511 void FB_SavePaletteTo(_THIS, int palette_len, __u16 *area) | |
| 1512 { | |
| 1513 struct fb_cmap cmap; | |
| 1514 | |
| 1515 cmap.start = 0; | |
| 1516 cmap.len = palette_len; | |
| 1517 cmap.red = &area[0*palette_len]; | |
| 1518 cmap.green = &area[1*palette_len]; | |
| 1519 cmap.blue = &area[2*palette_len]; | |
| 1520 cmap.transp = NULL; | |
| 1521 ioctl(console_fd, FBIOGETCMAP, &cmap); | |
| 1522 } | |
| 1523 | |
| 1524 void FB_RestorePaletteFrom(_THIS, int palette_len, __u16 *area) | |
| 1525 { | |
| 1526 struct fb_cmap cmap; | |
| 1527 | |
| 1528 cmap.start = 0; | |
| 1529 cmap.len = palette_len; | |
| 1530 cmap.red = &area[0*palette_len]; | |
| 1531 cmap.green = &area[1*palette_len]; | |
| 1532 cmap.blue = &area[2*palette_len]; | |
| 1533 cmap.transp = NULL; | |
| 1534 ioctl(console_fd, FBIOPUTCMAP, &cmap); | |
| 1535 } | |
| 1536 | |
| 1537 static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, | |
| 1538 struct fb_var_screeninfo *vinfo) | |
| 1539 { | |
| 1540 int i; | |
| 1541 | |
| 1542 /* Save hardware palette, if needed */ | |
| 1543 if ( finfo->visual == FB_VISUAL_PSEUDOCOLOR ) { | |
| 1544 saved_cmaplen = 1<<vinfo->bits_per_pixel; | |
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1545 saved_cmap=(__u16 *)SDL_malloc(3*saved_cmaplen*sizeof(*saved_cmap)); |
| 0 | 1546 if ( saved_cmap != NULL ) { |
| 1547 FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); | |
| 1548 } | |
| 1549 } | |
| 1550 | |
| 1551 /* Added support for FB_VISUAL_DIRECTCOLOR. | |
| 1552 With this mode pixel information is passed through the palette... | |
| 1553 Neat fading and gamma correction effects can be had by simply | |
| 1554 fooling around with the palette instead of changing the pixel | |
| 1555 values themselves... Very neat! | |
| 1556 | |
| 1557 Adam Meyerowitz 1/19/2000 | |
| 1558 ameyerow@optonline.com | |
| 1559 */ | |
| 1560 if ( finfo->visual == FB_VISUAL_DIRECTCOLOR ) { | |
| 1561 __u16 new_entries[3*256]; | |
| 1562 | |
| 1563 /* Save the colormap */ | |
| 1564 saved_cmaplen = 256; | |
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1565 saved_cmap=(__u16 *)SDL_malloc(3*saved_cmaplen*sizeof(*saved_cmap)); |
| 0 | 1566 if ( saved_cmap != NULL ) { |
| 1567 FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); | |
| 1568 } | |
| 1569 | |
| 1570 /* Allocate new identity colormap */ | |
| 1571 for ( i=0; i<256; ++i ) { | |
| 1572 new_entries[(0*256)+i] = | |
| 1573 new_entries[(1*256)+i] = | |
| 1574 new_entries[(2*256)+i] = (i<<8)|i; | |
| 1575 } | |
| 1576 FB_RestorePaletteFrom(this, 256, new_entries); | |
| 1577 } | |
| 1578 } | |
| 1579 | |
| 1580 static void FB_RestorePalette(_THIS) | |
| 1581 { | |
| 1582 /* Restore the original palette */ | |
| 1583 if ( saved_cmap ) { | |
| 1584 FB_RestorePaletteFrom(this, saved_cmaplen, saved_cmap); | |
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1585 SDL_free(saved_cmap); |
| 0 | 1586 saved_cmap = NULL; |
| 1587 } | |
| 1588 } | |
| 1589 | |
| 1590 static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | |
| 1591 { | |
| 1592 int i; | |
| 1593 __u16 r[256]; | |
| 1594 __u16 g[256]; | |
| 1595 __u16 b[256]; | |
| 1596 struct fb_cmap cmap; | |
| 1597 | |
| 1598 /* Set up the colormap */ | |
| 1599 for (i = 0; i < ncolors; i++) { | |
| 1600 r[i] = colors[i].r << 8; | |
| 1601 g[i] = colors[i].g << 8; | |
| 1602 b[i] = colors[i].b << 8; | |
| 1603 } | |
| 1604 cmap.start = firstcolor; | |
| 1605 cmap.len = ncolors; | |
| 1606 cmap.red = r; | |
| 1607 cmap.green = g; | |
| 1608 cmap.blue = b; | |
| 1609 cmap.transp = NULL; | |
| 1610 | |
| 1611 if( (ioctl(console_fd, FBIOPUTCMAP, &cmap) < 0) || | |
| 1612 !(this->screen->flags & SDL_HWPALETTE) ) { | |
| 1613 colors = this->screen->format->palette->colors; | |
| 1614 ncolors = this->screen->format->palette->ncolors; | |
| 1615 cmap.start = 0; | |
| 1616 cmap.len = ncolors; | |
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1617 SDL_memset(r, 0, sizeof(r)); |
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1618 SDL_memset(g, 0, sizeof(g)); |
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1619 SDL_memset(b, 0, sizeof(b)); |
| 0 | 1620 if ( ioctl(console_fd, FBIOGETCMAP, &cmap) == 0 ) { |
| 1621 for ( i=ncolors-1; i>=0; --i ) { | |
| 1622 colors[i].r = (r[i]>>8); | |
| 1623 colors[i].g = (g[i]>>8); | |
| 1624 colors[i].b = (b[i]>>8); | |
| 1625 } | |
| 1626 } | |
| 1627 return(0); | |
| 1628 } | |
| 1629 return(1); | |
| 1630 } | |
| 1631 | |
| 1632 /* Note: If we are terminated, this could be called in the middle of | |
| 1633 another SDL video routine -- notably UpdateRects. | |
| 1634 */ | |
| 1635 static void FB_VideoQuit(_THIS) | |
| 1636 { | |
| 1637 int i, j; | |
| 1638 | |
| 1639 if ( this->screen ) { | |
| 1640 /* Clear screen and tell SDL not to free the pixels */ | |
| 1641 if ( this->screen->pixels && FB_InGraphicsMode(this) ) { | |
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1642 #if defined(__powerpc__) || defined(__ia64__) /* SIGBUS when using SDL_memset() ?? */ |
| 0 | 1643 Uint8 *rowp = (Uint8 *)this->screen->pixels; |
| 1644 int left = this->screen->pitch*this->screen->h; | |
| 1645 while ( left-- ) { *rowp++ = 0; } | |
| 1646 #else | |
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1647 SDL_memset(this->screen->pixels,0,this->screen->h*this->screen->pitch); |
| 0 | 1648 #endif |
| 1649 } | |
| 1650 /* This test fails when using the VGA16 shadow memory */ | |
| 1651 if ( ((char *)this->screen->pixels >= mapped_mem) && | |
| 1652 ((char *)this->screen->pixels < (mapped_mem+mapped_memlen)) ) { | |
| 1653 this->screen->pixels = NULL; | |
| 1654 } | |
| 1655 } | |
| 1656 | |
| 1657 /* Clear the lock mutex */ | |
| 1658 if ( hw_lock ) { | |
| 1659 SDL_DestroyMutex(hw_lock); | |
| 1660 hw_lock = NULL; | |
| 1661 } | |
| 1662 | |
| 1663 /* Clean up defined video modes */ | |
| 1664 for ( i=0; i<NUM_MODELISTS; ++i ) { | |
| 1665 if ( SDL_modelist[i] != NULL ) { | |
| 1666 for ( j=0; SDL_modelist[i][j]; ++j ) { | |
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1667 SDL_free(SDL_modelist[i][j]); |
| 0 | 1668 } |
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1669 SDL_free(SDL_modelist[i]); |
| 0 | 1670 SDL_modelist[i] = NULL; |
| 1671 } | |
| 1672 } | |
| 1673 | |
| 1674 /* Clean up the memory bucket list */ | |
| 1675 FB_FreeHWSurfaces(this); | |
| 1676 | |
| 1677 /* Close console and input file descriptors */ | |
| 1678 if ( console_fd > 0 ) { | |
| 1679 /* Unmap the video framebuffer and I/O registers */ | |
| 1680 if ( mapped_mem ) { | |
| 1681 munmap(mapped_mem, mapped_memlen); | |
| 1682 mapped_mem = NULL; | |
| 1683 } | |
| 1684 if ( mapped_io ) { | |
| 1685 munmap(mapped_io, mapped_iolen); | |
| 1686 mapped_io = NULL; | |
| 1687 } | |
| 1688 | |
| 1689 /* Restore the original video mode and palette */ | |
| 1690 if ( FB_InGraphicsMode(this) ) { | |
| 1691 FB_RestorePalette(this); | |
| 1692 ioctl(console_fd, FBIOPUT_VSCREENINFO, &saved_vinfo); | |
| 1693 } | |
| 1694 | |
| 1695 /* We're all done with the framebuffer */ | |
| 1696 close(console_fd); | |
| 1697 console_fd = -1; | |
| 1698 } | |
| 1699 FB_CloseMouse(this); | |
| 1700 FB_CloseKeyboard(this); | |
| 1701 } |