Mercurial > sdl-ios-xcode
annotate src/video/fbcon/SDL_fbvideo.c @ 4288:4ab46e81d08e SDL-1.2
Default value for SGI swap control GL attribute should be -1.
Explicitly try to set it if you want a different value. Different glX
implementations appear to have different defaults for this, and you can't
query them for the current value.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Sat, 10 Oct 2009 05:17:47 +0000 |
| parents | ca02f877d055 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 SDL - Simple DirectMedia Layer |
| 4159 | 3 Copyright (C) 1997-2009 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 }; | |
| 4256 | 129 enum { |
| 130 FBCON_ROTATE_NONE = 0, | |
| 131 FBCON_ROTATE_CCW = 90, | |
| 132 FBCON_ROTATE_UD = 180, | |
| 133 FBCON_ROTATE_CW = 270 | |
| 134 }; | |
| 135 | |
| 136 #define min(a,b) ((a)<(b)?(a):(b)) | |
| 0 | 137 |
| 138 /* Initialization/Query functions */ | |
| 139 static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat); | |
| 140 static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); | |
| 141 static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 142 #ifdef VGA16_FBCON_SUPPORT | |
| 143 static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 144 #endif | |
| 145 static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); | |
| 146 static void FB_VideoQuit(_THIS); | |
| 147 | |
| 148 /* Hardware surface functions */ | |
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149 static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size); |
| 0 | 150 static void FB_FreeHWSurfaces(_THIS); |
| 151 static int FB_AllocHWSurface(_THIS, SDL_Surface *surface); | |
| 152 static int FB_LockHWSurface(_THIS, SDL_Surface *surface); | |
| 153 static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface); | |
| 154 static void FB_FreeHWSurface(_THIS, SDL_Surface *surface); | |
| 155 static void FB_WaitVBL(_THIS); | |
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156 static void FB_WaitIdle(_THIS); |
| 0 | 157 static int FB_FlipHWSurface(_THIS, SDL_Surface *surface); |
| 158 | |
| 159 /* Internal palette functions */ | |
| 160 static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, | |
| 161 struct fb_var_screeninfo *vinfo); | |
| 162 static void FB_RestorePalette(_THIS); | |
| 163 | |
| 4256 | 164 /* Shadow buffer functions */ |
| 165 static FB_bitBlit FB_blit16; | |
| 166 static FB_bitBlit FB_blit16blocked; | |
| 167 | |
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168 static int SDL_getpagesize(void) |
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169 { |
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170 #ifdef HAVE_GETPAGESIZE |
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171 return getpagesize(); |
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172 #elif defined(PAGE_SIZE) |
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173 return PAGE_SIZE; |
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174 #else |
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175 #error Can not determine system page size. |
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176 return 4096; /* this is what it USED to be in Linux... */ |
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177 #endif |
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178 } |
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179 |
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180 |
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181 /* Small wrapper for mmap() so we can play nicely with no-mmu hosts |
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182 * (non-mmu hosts disallow the MAP_SHARED flag) */ |
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183 |
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184 static void *do_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) |
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185 { |
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186 void *ret; |
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187 ret = mmap(start, length, prot, flags, fd, offset); |
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188 if ( ret == (char *)-1 && (flags & MAP_SHARED) ) { |
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189 ret = mmap(start, length, prot, |
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190 (flags & ~MAP_SHARED) | MAP_PRIVATE, fd, offset); |
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191 } |
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192 return ret; |
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193 } |
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194 |
| 0 | 195 /* FB driver bootstrap functions */ |
| 196 | |
| 197 static int FB_Available(void) | |
| 198 { | |
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199 int console = -1; |
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200 /* Added check for /fb/0 (devfs) */ |
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201 /* but - use environment variable first... if it fails, still check defaults */ |
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202 int idx = 0; |
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203 const char *SDL_fbdevs[4] = { NULL, "/dev/fb0", "/dev/fb/0", NULL }; |
| 0 | 204 |
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205 SDL_fbdevs[0] = SDL_getenv("SDL_FBDEV"); |
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206 if( !SDL_fbdevs[0] ) |
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207 idx++; |
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208 for( ; SDL_fbdevs[idx]; idx++ ) |
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209 { |
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210 console = open(SDL_fbdevs[idx], O_RDWR, 0); |
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211 if ( console >= 0 ) { |
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212 close(console); |
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213 break; |
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214 } |
| 0 | 215 } |
| 216 return(console >= 0); | |
| 217 } | |
| 218 | |
| 219 static void FB_DeleteDevice(SDL_VideoDevice *device) | |
| 220 { | |
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221 SDL_free(device->hidden); |
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222 SDL_free(device); |
| 0 | 223 } |
| 224 | |
| 225 static SDL_VideoDevice *FB_CreateDevice(int devindex) | |
| 226 { | |
| 227 SDL_VideoDevice *this; | |
| 228 | |
| 229 /* Initialize all variables that we clean on shutdown */ | |
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230 this = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); |
| 0 | 231 if ( this ) { |
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232 SDL_memset(this, 0, (sizeof *this)); |
| 0 | 233 this->hidden = (struct SDL_PrivateVideoData *) |
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234 SDL_malloc((sizeof *this->hidden)); |
| 0 | 235 } |
| 236 if ( (this == NULL) || (this->hidden == NULL) ) { | |
| 237 SDL_OutOfMemory(); | |
| 238 if ( this ) { | |
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239 SDL_free(this); |
| 0 | 240 } |
| 241 return(0); | |
| 242 } | |
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243 SDL_memset(this->hidden, 0, (sizeof *this->hidden)); |
| 0 | 244 wait_vbl = FB_WaitVBL; |
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245 wait_idle = FB_WaitIdle; |
| 0 | 246 mouse_fd = -1; |
| 247 keyboard_fd = -1; | |
| 248 | |
| 249 /* Set the function pointers */ | |
| 250 this->VideoInit = FB_VideoInit; | |
| 251 this->ListModes = FB_ListModes; | |
| 252 this->SetVideoMode = FB_SetVideoMode; | |
| 253 this->SetColors = FB_SetColors; | |
| 254 this->UpdateRects = NULL; | |
| 255 this->VideoQuit = FB_VideoQuit; | |
| 256 this->AllocHWSurface = FB_AllocHWSurface; | |
| 257 this->CheckHWBlit = NULL; | |
| 258 this->FillHWRect = NULL; | |
| 259 this->SetHWColorKey = NULL; | |
| 260 this->SetHWAlpha = NULL; | |
| 261 this->LockHWSurface = FB_LockHWSurface; | |
| 262 this->UnlockHWSurface = FB_UnlockHWSurface; | |
| 263 this->FlipHWSurface = FB_FlipHWSurface; | |
| 264 this->FreeHWSurface = FB_FreeHWSurface; | |
| 265 this->SetCaption = NULL; | |
| 266 this->SetIcon = NULL; | |
| 267 this->IconifyWindow = NULL; | |
| 268 this->GrabInput = NULL; | |
| 269 this->GetWMInfo = NULL; | |
| 270 this->InitOSKeymap = FB_InitOSKeymap; | |
| 271 this->PumpEvents = FB_PumpEvents; | |
| 272 | |
| 273 this->free = FB_DeleteDevice; | |
| 274 | |
| 275 return this; | |
| 276 } | |
| 277 | |
| 278 VideoBootStrap FBCON_bootstrap = { | |
| 279 "fbcon", "Linux Framebuffer Console", | |
| 280 FB_Available, FB_CreateDevice | |
| 281 }; | |
| 282 | |
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283 #define FB_MODES_DB "/etc/fb.modes" |
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284 |
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285 static int read_fbmodes_line(FILE*f, char* line, int length) |
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286 { |
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287 int blank; |
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288 char* c; |
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289 int i; |
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290 |
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291 blank=0; |
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292 /* find a relevant line */ |
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293 do |
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294 { |
| 4163 | 295 if (!fgets(line,length,f)) |
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296 return 0; |
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297 c=line; |
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298 while(((*c=='\t')||(*c==' '))&&(*c!=0)) |
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299 c++; |
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300 |
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301 if ((*c=='\n')||(*c=='#')||(*c==0)) |
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302 blank=1; |
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303 else |
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304 blank=0; |
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305 } |
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306 while(blank); |
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307 /* remove whitespace at the begining of the string */ |
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308 i=0; |
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309 do |
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310 { |
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311 line[i]=c[i]; |
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312 i++; |
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313 } |
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314 while(c[i]!=0); |
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315 return 1; |
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316 } |
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317 |
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318 static int read_fbmodes_mode(FILE *f, struct fb_var_screeninfo *vinfo) |
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319 { |
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320 char line[1024]; |
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321 char option[256]; |
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322 |
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323 /* Find a "geometry" */ |
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324 do { |
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325 if (read_fbmodes_line(f, line, sizeof(line))==0) |
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326 return 0; |
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327 if (SDL_strncmp(line,"geometry",8)==0) |
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328 break; |
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329 } |
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330 while(1); |
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331 |
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332 SDL_sscanf(line, "geometry %d %d %d %d %d", &vinfo->xres, &vinfo->yres, |
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333 &vinfo->xres_virtual, &vinfo->yres_virtual, &vinfo->bits_per_pixel); |
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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 SDL_sscanf(line, "timings %d %d %d %d %d %d %d", &vinfo->pixclock, |
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338 &vinfo->left_margin, &vinfo->right_margin, &vinfo->upper_margin, |
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339 &vinfo->lower_margin, &vinfo->hsync_len, &vinfo->vsync_len); |
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340 |
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341 vinfo->sync=0; |
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342 vinfo->vmode=FB_VMODE_NONINTERLACED; |
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343 |
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344 /* Parse misc options */ |
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345 do { |
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346 if (read_fbmodes_line(f, line, sizeof(line))==0) |
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347 return 0; |
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348 |
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349 if (SDL_strncmp(line,"hsync",5)==0) { |
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350 SDL_sscanf(line,"hsync %s",option); |
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351 if (SDL_strncmp(option,"high",4)==0) |
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352 vinfo->sync |= FB_SYNC_HOR_HIGH_ACT; |
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353 } |
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354 else if (SDL_strncmp(line,"vsync",5)==0) { |
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355 SDL_sscanf(line,"vsync %s",option); |
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356 if (SDL_strncmp(option,"high",4)==0) |
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357 vinfo->sync |= FB_SYNC_VERT_HIGH_ACT; |
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358 } |
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359 else if (SDL_strncmp(line,"csync",5)==0) { |
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360 SDL_sscanf(line,"csync %s",option); |
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361 if (SDL_strncmp(option,"high",4)==0) |
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362 vinfo->sync |= FB_SYNC_COMP_HIGH_ACT; |
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363 } |
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364 else if (SDL_strncmp(line,"extsync",5)==0) { |
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365 SDL_sscanf(line,"extsync %s",option); |
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366 if (SDL_strncmp(option,"true",4)==0) |
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367 vinfo->sync |= FB_SYNC_EXT; |
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368 } |
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369 else if (SDL_strncmp(line,"laced",5)==0) { |
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370 SDL_sscanf(line,"laced %s",option); |
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371 if (SDL_strncmp(option,"true",4)==0) |
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372 vinfo->vmode |= FB_VMODE_INTERLACED; |
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373 } |
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374 else if (SDL_strncmp(line,"double",6)==0) { |
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375 SDL_sscanf(line,"double %s",option); |
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376 if (SDL_strncmp(option,"true",4)==0) |
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377 vinfo->vmode |= FB_VMODE_DOUBLE; |
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378 } |
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379 } |
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380 while(SDL_strncmp(line,"endmode",7)!=0); |
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381 |
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382 return 1; |
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383 } |
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384 |
| 0 | 385 static int FB_CheckMode(_THIS, struct fb_var_screeninfo *vinfo, |
| 386 int index, unsigned int *w, unsigned int *h) | |
| 387 { | |
| 388 int mode_okay; | |
| 389 | |
| 390 mode_okay = 0; | |
| 391 vinfo->bits_per_pixel = (index+1)*8; | |
| 392 vinfo->xres = *w; | |
| 393 vinfo->xres_virtual = *w; | |
| 394 vinfo->yres = *h; | |
| 395 vinfo->yres_virtual = *h; | |
| 396 vinfo->activate = FB_ACTIVATE_TEST; | |
| 397 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, vinfo) == 0 ) { | |
| 398 #ifdef FBCON_DEBUG | |
| 399 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); | |
| 400 #endif | |
| 401 if ( (((vinfo->bits_per_pixel+7)/8)-1) == index ) { | |
| 402 *w = vinfo->xres; | |
| 403 *h = vinfo->yres; | |
| 404 mode_okay = 1; | |
| 405 } | |
| 406 } | |
| 407 return mode_okay; | |
| 408 } | |
| 409 | |
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410 static int FB_AddMode(_THIS, int index, unsigned int w, unsigned int h, int check_timings) |
| 0 | 411 { |
| 412 SDL_Rect *mode; | |
| 413 int i; | |
| 414 int next_mode; | |
| 415 | |
| 416 /* Check to see if we already have this mode */ | |
| 417 if ( SDL_nummodes[index] > 0 ) { | |
| 418 mode = SDL_modelist[index][SDL_nummodes[index]-1]; | |
| 419 if ( (mode->w == w) && (mode->h == h) ) { | |
| 420 #ifdef FBCON_DEBUG | |
| 421 fprintf(stderr, "We already have mode %dx%d at %d bytes per pixel\n", w, h, index+1); | |
| 422 #endif | |
| 423 return(0); | |
| 424 } | |
| 425 } | |
| 426 | |
| 427 /* Only allow a mode if we have a valid timing for it */ | |
|
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428 if ( check_timings ) { |
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429 int found_timing = 0; |
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430 for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { |
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431 if ( (w == vesa_timings[i].xres) && |
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432 (h == vesa_timings[i].yres) && vesa_timings[i].pixclock ) { |
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433 found_timing = 1; |
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434 break; |
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435 } |
| 0 | 436 } |
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437 if ( !found_timing ) { |
| 0 | 438 #ifdef FBCON_DEBUG |
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439 fprintf(stderr, "No valid timing line for mode %dx%d\n", w, h); |
| 0 | 440 #endif |
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441 return(0); |
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442 } |
| 0 | 443 } |
| 444 | |
| 445 /* Set up the new video mode rectangle */ | |
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446 mode = (SDL_Rect *)SDL_malloc(sizeof *mode); |
| 0 | 447 if ( mode == NULL ) { |
| 448 SDL_OutOfMemory(); | |
| 449 return(-1); | |
| 450 } | |
| 451 mode->x = 0; | |
| 452 mode->y = 0; | |
| 453 mode->w = w; | |
| 454 mode->h = h; | |
| 455 #ifdef FBCON_DEBUG | |
| 456 fprintf(stderr, "Adding mode %dx%d at %d bytes per pixel\n", w, h, index+1); | |
| 457 #endif | |
| 458 | |
| 459 /* Allocate the new list of modes, and fill in the new mode */ | |
| 460 next_mode = SDL_nummodes[index]; | |
| 461 SDL_modelist[index] = (SDL_Rect **) | |
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462 SDL_realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *)); |
| 0 | 463 if ( SDL_modelist[index] == NULL ) { |
| 464 SDL_OutOfMemory(); | |
| 465 SDL_nummodes[index] = 0; | |
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466 SDL_free(mode); |
| 0 | 467 return(-1); |
| 468 } | |
| 469 SDL_modelist[index][next_mode] = mode; | |
| 470 SDL_modelist[index][next_mode+1] = NULL; | |
| 471 SDL_nummodes[index]++; | |
| 472 | |
| 473 return(0); | |
| 474 } | |
| 475 | |
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476 static int cmpmodes(const void *va, const void *vb) |
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477 { |
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478 const SDL_Rect *a = *(const SDL_Rect**)va; |
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479 const SDL_Rect *b = *(const SDL_Rect**)vb; |
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480 if ( a->h == b->h ) |
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481 return b->w - a->w; |
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482 else |
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483 return b->h - a->h; |
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484 } |
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485 |
|
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486 static void FB_SortModes(_THIS) |
|
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487 { |
|
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488 int i; |
|
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489 for ( i=0; i<NUM_MODELISTS; ++i ) { |
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490 if ( SDL_nummodes[i] > 0 ) { |
|
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491 SDL_qsort(SDL_modelist[i], SDL_nummodes[i], sizeof *SDL_modelist[i], cmpmodes); |
|
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492 } |
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493 } |
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494 } |
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495 |
| 0 | 496 static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat) |
| 497 { | |
|
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|
498 const int pagesize = SDL_getpagesize(); |
| 0 | 499 struct fb_fix_screeninfo finfo; |
| 500 struct fb_var_screeninfo vinfo; | |
| 501 int i, j; | |
| 502 int current_index; | |
| 503 unsigned int current_w; | |
| 504 unsigned int current_h; | |
| 505 const char *SDL_fbdev; | |
| 4256 | 506 const char *rotation; |
|
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507 FILE *modesdb; |
| 0 | 508 |
| 509 /* Initialize the library */ | |
|
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510 SDL_fbdev = SDL_getenv("SDL_FBDEV"); |
| 0 | 511 if ( SDL_fbdev == NULL ) { |
| 512 SDL_fbdev = "/dev/fb0"; | |
| 513 } | |
| 514 console_fd = open(SDL_fbdev, O_RDWR, 0); | |
| 515 if ( console_fd < 0 ) { | |
| 516 SDL_SetError("Unable to open %s", SDL_fbdev); | |
| 517 return(-1); | |
| 518 } | |
| 519 | |
|
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|
520 #if !SDL_THREADS_DISABLED |
| 0 | 521 /* Create the hardware surface lock mutex */ |
| 522 hw_lock = SDL_CreateMutex(); | |
| 523 if ( hw_lock == NULL ) { | |
| 524 SDL_SetError("Unable to create lock mutex"); | |
| 525 FB_VideoQuit(this); | |
| 526 return(-1); | |
| 527 } | |
| 528 #endif | |
| 529 | |
| 530 /* Get the type of video hardware */ | |
| 531 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 532 SDL_SetError("Couldn't get console hardware info"); | |
| 533 FB_VideoQuit(this); | |
| 534 return(-1); | |
| 535 } | |
| 536 switch (finfo.type) { | |
| 537 case FB_TYPE_PACKED_PIXELS: | |
| 538 /* Supported, no worries.. */ | |
| 539 break; | |
| 540 #ifdef VGA16_FBCON_SUPPORT | |
| 541 case FB_TYPE_VGA_PLANES: | |
| 542 /* VGA16 is supported, but that's it */ | |
| 543 if ( finfo.type_aux == FB_AUX_VGA_PLANES_VGA4 ) { | |
| 544 if ( ioperm(0x3b4, 0x3df - 0x3b4 + 1, 1) < 0 ) { | |
| 545 SDL_SetError("No I/O port permissions"); | |
| 546 FB_VideoQuit(this); | |
| 547 return(-1); | |
| 548 } | |
| 549 this->SetVideoMode = FB_SetVGA16Mode; | |
| 550 break; | |
| 551 } | |
| 552 /* Fall through to unsupported case */ | |
| 553 #endif /* VGA16_FBCON_SUPPORT */ | |
| 554 default: | |
| 555 SDL_SetError("Unsupported console hardware"); | |
| 556 FB_VideoQuit(this); | |
| 557 return(-1); | |
| 558 } | |
| 559 switch (finfo.visual) { | |
| 560 case FB_VISUAL_TRUECOLOR: | |
| 561 case FB_VISUAL_PSEUDOCOLOR: | |
| 562 case FB_VISUAL_STATIC_PSEUDOCOLOR: | |
| 563 case FB_VISUAL_DIRECTCOLOR: | |
| 564 break; | |
| 565 default: | |
| 566 SDL_SetError("Unsupported console hardware"); | |
| 567 FB_VideoQuit(this); | |
| 568 return(-1); | |
| 569 } | |
| 570 | |
| 571 /* Check if the user wants to disable hardware acceleration */ | |
| 572 { const char *fb_accel; | |
|
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573 fb_accel = SDL_getenv("SDL_FBACCEL"); |
| 0 | 574 if ( fb_accel ) { |
|
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575 finfo.accel = SDL_atoi(fb_accel); |
| 0 | 576 } |
| 577 } | |
| 578 | |
| 579 /* Memory map the device, compensating for buggy PPC mmap() */ | |
| 580 mapped_offset = (((long)finfo.smem_start) - | |
|
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|
581 (((long)finfo.smem_start)&~(pagesize-1))); |
| 0 | 582 mapped_memlen = finfo.smem_len+mapped_offset; |
|
1798
49b4b8413734
Date: Tue, 9 May 2006 23:01:49 -0400
Sam Lantinga <slouken@libsdl.org>
parents:
1780
diff
changeset
|
583 mapped_mem = do_mmap(NULL, mapped_memlen, |
| 0 | 584 PROT_READ|PROT_WRITE, MAP_SHARED, console_fd, 0); |
| 585 if ( mapped_mem == (char *)-1 ) { | |
| 586 SDL_SetError("Unable to memory map the video hardware"); | |
| 587 mapped_mem = NULL; | |
| 588 FB_VideoQuit(this); | |
| 589 return(-1); | |
| 590 } | |
| 591 | |
| 592 /* Determine the current screen depth */ | |
| 593 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 594 SDL_SetError("Couldn't get console pixel format"); | |
| 595 FB_VideoQuit(this); | |
| 596 return(-1); | |
| 597 } | |
| 598 vformat->BitsPerPixel = vinfo.bits_per_pixel; | |
| 599 if ( vformat->BitsPerPixel < 8 ) { | |
| 600 /* Assuming VGA16, we handle this via a shadow framebuffer */ | |
| 601 vformat->BitsPerPixel = 8; | |
| 602 } | |
| 603 for ( i=0; i<vinfo.red.length; ++i ) { | |
| 604 vformat->Rmask <<= 1; | |
| 605 vformat->Rmask |= (0x00000001<<vinfo.red.offset); | |
| 606 } | |
| 607 for ( i=0; i<vinfo.green.length; ++i ) { | |
| 608 vformat->Gmask <<= 1; | |
| 609 vformat->Gmask |= (0x00000001<<vinfo.green.offset); | |
| 610 } | |
| 611 for ( i=0; i<vinfo.blue.length; ++i ) { | |
| 612 vformat->Bmask <<= 1; | |
| 613 vformat->Bmask |= (0x00000001<<vinfo.blue.offset); | |
| 614 } | |
| 615 saved_vinfo = vinfo; | |
| 616 | |
| 617 /* Save hardware palette, if needed */ | |
| 618 FB_SavePalette(this, &finfo, &vinfo); | |
| 619 | |
| 620 /* If the I/O registers are available, memory map them so we | |
| 621 can take advantage of any supported hardware acceleration. | |
| 622 */ | |
| 623 vinfo.accel_flags = 0; /* Temporarily reserve registers */ | |
| 624 ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo); | |
| 625 if ( finfo.accel && finfo.mmio_len ) { | |
| 626 mapped_iolen = finfo.mmio_len; | |
|
1798
49b4b8413734
Date: Tue, 9 May 2006 23:01:49 -0400
Sam Lantinga <slouken@libsdl.org>
parents:
1780
diff
changeset
|
627 mapped_io = do_mmap(NULL, mapped_iolen, PROT_READ|PROT_WRITE, |
| 0 | 628 MAP_SHARED, console_fd, mapped_memlen); |
| 629 if ( mapped_io == (char *)-1 ) { | |
| 630 /* Hmm, failed to memory map I/O registers */ | |
| 631 mapped_io = NULL; | |
| 632 } | |
| 633 } | |
| 634 | |
| 4256 | 635 rotate = FBCON_ROTATE_NONE; |
| 636 rotation = SDL_getenv("SDL_VIDEO_FBCON_ROTATION"); | |
| 637 if (rotation != NULL) { | |
| 638 if (SDL_strlen(rotation) == 0) { | |
| 639 shadow_fb = 0; | |
| 640 rotate = FBCON_ROTATE_NONE; | |
| 641 #ifdef FBCON_DEBUG | |
| 642 printf("Not rotating, no shadow\n"); | |
| 643 #endif | |
| 644 } else if (!SDL_strcmp(rotation, "NONE")) { | |
| 645 shadow_fb = 1; | |
| 646 rotate = FBCON_ROTATE_NONE; | |
| 647 #ifdef FBCON_DEBUG | |
| 648 printf("Not rotating, but still using shadow\n"); | |
| 649 #endif | |
| 650 } else if (!SDL_strcmp(rotation, "CW")) { | |
| 651 shadow_fb = 1; | |
| 652 rotate = FBCON_ROTATE_CW; | |
| 653 #ifdef FBCON_DEBUG | |
| 654 printf("Rotating screen clockwise\n"); | |
| 655 #endif | |
| 656 } else if (!SDL_strcmp(rotation, "CCW")) { | |
| 657 shadow_fb = 1; | |
| 658 rotate = FBCON_ROTATE_CCW; | |
| 659 #ifdef FBCON_DEBUG | |
| 660 printf("Rotating screen counter clockwise\n"); | |
| 661 #endif | |
| 662 } else if (!SDL_strcmp(rotation, "UD")) { | |
| 663 shadow_fb = 1; | |
| 664 rotate = FBCON_ROTATE_UD; | |
| 665 #ifdef FBCON_DEBUG | |
| 666 printf("Rotating screen upside down\n"); | |
| 667 #endif | |
| 668 } else { | |
| 669 SDL_SetError("\"%s\" is not a valid value for " | |
| 670 "SDL_VIDEO_FBCON_ROTATION", rotation); | |
| 671 return(-1); | |
| 672 } | |
| 673 } | |
| 674 | |
| 675 if (rotate == FBCON_ROTATE_CW || rotate == FBCON_ROTATE_CCW) { | |
| 676 current_w = vinfo.yres; | |
| 677 current_h = vinfo.xres; | |
| 678 } else { | |
| 679 current_w = vinfo.xres; | |
| 680 current_h = vinfo.yres; | |
| 681 } | |
| 682 | |
| 0 | 683 /* Query for the list of available video modes */ |
| 684 current_index = ((vinfo.bits_per_pixel+7)/8)-1; | |
|
1215
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
685 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
|
686 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:
1036
diff
changeset
|
687 SDL_nummodes[i] = 0; |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
688 SDL_modelist[i] = NULL; |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
689 } |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
690 if ( SDL_getenv("SDL_FB_BROKEN_MODES") != NULL ) { |
|
1215
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
691 FB_AddMode(this, current_index, 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
|
692 } else 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
|
693 while ( read_fbmodes_mode(modesdb, &vinfo) ) { |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
694 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:
1036
diff
changeset
|
695 unsigned int 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
|
696 |
| 4256 | 697 if (rotate == FBCON_ROTATE_CW || rotate == FBCON_ROTATE_CCW) { |
| 698 w = vinfo.yres; | |
| 699 h = vinfo.xres; | |
| 700 } else { | |
| 701 w = vinfo.xres; | |
| 702 h = vinfo.yres; | |
| 703 } | |
|
1215
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
704 /* 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
|
705 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
|
706 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
|
707 /* 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
|
708 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
|
709 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
|
710 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
711 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
712 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
|
713 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
|
714 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
715 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
716 } |
|
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
717 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
|
718 FB_SortModes(this); |
|
941
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
719 } else { |
|
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
720 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
|
721 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
|
722 unsigned int w, h; |
| 0 | 723 |
| 4256 | 724 if (rotate == FBCON_ROTATE_CW || rotate == FBCON_ROTATE_CCW) { |
| 725 w = checkres[j].h; | |
| 726 h = checkres[j].w; | |
| 727 } else { | |
| 728 w = checkres[j].w; | |
| 729 h = checkres[j].h; | |
| 730 } | |
|
941
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
731 /* 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
|
732 if ( i == current_index ) { |
|
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
733 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
|
734 /* Only check once */ |
|
1215
d082d2d66ec8
Added support for parsing /etc/fb.modes, based on Stephane Marchesin's patch
Sam Lantinga <slouken@libsdl.org>
parents:
1036
diff
changeset
|
735 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
|
736 current_index = -1; |
|
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
737 } |
| 0 | 738 } |
|
941
5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
739 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
|
740 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
|
741 } |
| 0 | 742 } |
| 743 } | |
| 744 } | |
| 745 | |
|
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
|
746 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
|
747 this->info.current_h = current_h; |
| 0 | 748 this->info.wm_available = 0; |
| 4256 | 749 this->info.hw_available = !shadow_fb; |
| 750 this->info.video_mem = shadow_fb ? 0 : finfo.smem_len/1024; | |
| 751 /* Fill in our hardware acceleration capabilities */ | |
| 0 | 752 if ( mapped_io ) { |
| 753 switch (finfo.accel) { | |
| 754 case FB_ACCEL_MATROX_MGA2064W: | |
| 755 case FB_ACCEL_MATROX_MGA1064SG: | |
| 756 case FB_ACCEL_MATROX_MGA2164W: | |
| 757 case FB_ACCEL_MATROX_MGA2164W_AGP: | |
| 758 case FB_ACCEL_MATROX_MGAG100: | |
| 759 /*case FB_ACCEL_MATROX_MGAG200: G200 acceleration broken! */ | |
| 760 case FB_ACCEL_MATROX_MGAG400: | |
| 761 #ifdef FBACCEL_DEBUG | |
| 762 printf("Matrox hardware accelerator!\n"); | |
| 763 #endif | |
| 764 FB_MatroxAccel(this, finfo.accel); | |
| 765 break; | |
| 766 case FB_ACCEL_3DFX_BANSHEE: | |
| 767 #ifdef FBACCEL_DEBUG | |
| 768 printf("3DFX hardware accelerator!\n"); | |
| 769 #endif | |
| 770 FB_3DfxAccel(this, finfo.accel); | |
| 771 break; | |
|
133
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
106
diff
changeset
|
772 case FB_ACCEL_NV3: |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
106
diff
changeset
|
773 case FB_ACCEL_NV4: |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
106
diff
changeset
|
774 #ifdef FBACCEL_DEBUG |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
106
diff
changeset
|
775 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
|
776 #endif |
|
5d4bafca35cd
Added support for hardware accelerated NVidia driver on framebuffer console
Sam Lantinga <slouken@libsdl.org>
parents:
106
diff
changeset
|
777 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
|
778 break; |
| 0 | 779 default: |
| 780 #ifdef FBACCEL_DEBUG | |
| 781 printf("Unknown hardware accelerator.\n"); | |
| 782 #endif | |
| 783 break; | |
| 784 } | |
| 785 } | |
| 786 | |
| 4256 | 787 if (shadow_fb) { |
| 788 shadow_mem = (char *)SDL_malloc(mapped_memlen); | |
| 789 if (shadow_mem == NULL) { | |
| 790 SDL_SetError("No memory for shadow"); | |
| 791 return (-1); | |
| 792 } | |
| 793 } | |
| 794 | |
| 0 | 795 /* Enable mouse and keyboard support */ |
| 796 if ( FB_OpenKeyboard(this) < 0 ) { | |
| 797 FB_VideoQuit(this); | |
| 798 return(-1); | |
| 799 } | |
| 800 if ( FB_OpenMouse(this) < 0 ) { | |
| 801 const char *sdl_nomouse; | |
| 802 | |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
803 sdl_nomouse = SDL_getenv("SDL_NOMOUSE"); |
| 0 | 804 if ( ! sdl_nomouse ) { |
| 805 SDL_SetError("Unable to open mouse"); | |
| 806 FB_VideoQuit(this); | |
| 807 return(-1); | |
| 808 } | |
| 809 } | |
| 810 | |
| 811 /* We're done! */ | |
| 812 return(0); | |
| 813 } | |
| 814 | |
| 815 static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) | |
| 816 { | |
| 817 return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]); | |
| 818 } | |
| 819 | |
| 820 /* Various screen update functions available */ | |
| 821 static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); | |
| 822 #ifdef VGA16_FBCON_SUPPORT | |
| 823 static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects); | |
| 824 #endif | |
| 825 | |
| 826 #ifdef FBCON_DEBUG | |
| 827 static void print_vinfo(struct fb_var_screeninfo *vinfo) | |
| 828 { | |
| 829 fprintf(stderr, "Printing vinfo:\n"); | |
| 830 fprintf(stderr, "\txres: %d\n", vinfo->xres); | |
| 831 fprintf(stderr, "\tyres: %d\n", vinfo->yres); | |
| 832 fprintf(stderr, "\txres_virtual: %d\n", vinfo->xres_virtual); | |
| 833 fprintf(stderr, "\tyres_virtual: %d\n", vinfo->yres_virtual); | |
| 834 fprintf(stderr, "\txoffset: %d\n", vinfo->xoffset); | |
| 835 fprintf(stderr, "\tyoffset: %d\n", vinfo->yoffset); | |
| 836 fprintf(stderr, "\tbits_per_pixel: %d\n", vinfo->bits_per_pixel); | |
| 837 fprintf(stderr, "\tgrayscale: %d\n", vinfo->grayscale); | |
| 838 fprintf(stderr, "\tnonstd: %d\n", vinfo->nonstd); | |
| 839 fprintf(stderr, "\tactivate: %d\n", vinfo->activate); | |
| 840 fprintf(stderr, "\theight: %d\n", vinfo->height); | |
| 841 fprintf(stderr, "\twidth: %d\n", vinfo->width); | |
| 842 fprintf(stderr, "\taccel_flags: %d\n", vinfo->accel_flags); | |
| 843 fprintf(stderr, "\tpixclock: %d\n", vinfo->pixclock); | |
| 844 fprintf(stderr, "\tleft_margin: %d\n", vinfo->left_margin); | |
| 845 fprintf(stderr, "\tright_margin: %d\n", vinfo->right_margin); | |
| 846 fprintf(stderr, "\tupper_margin: %d\n", vinfo->upper_margin); | |
| 847 fprintf(stderr, "\tlower_margin: %d\n", vinfo->lower_margin); | |
| 848 fprintf(stderr, "\thsync_len: %d\n", vinfo->hsync_len); | |
| 849 fprintf(stderr, "\tvsync_len: %d\n", vinfo->vsync_len); | |
| 850 fprintf(stderr, "\tsync: %d\n", vinfo->sync); | |
| 851 fprintf(stderr, "\tvmode: %d\n", vinfo->vmode); | |
| 852 fprintf(stderr, "\tred: %d/%d\n", vinfo->red.length, vinfo->red.offset); | |
| 853 fprintf(stderr, "\tgreen: %d/%d\n", vinfo->green.length, vinfo->green.offset); | |
| 854 fprintf(stderr, "\tblue: %d/%d\n", vinfo->blue.length, vinfo->blue.offset); | |
| 855 fprintf(stderr, "\talpha: %d/%d\n", vinfo->transp.length, vinfo->transp.offset); | |
| 856 } | |
| 857 static void print_finfo(struct fb_fix_screeninfo *finfo) | |
| 858 { | |
| 859 fprintf(stderr, "Printing finfo:\n"); | |
| 860 fprintf(stderr, "\tsmem_start = %p\n", (char *)finfo->smem_start); | |
| 861 fprintf(stderr, "\tsmem_len = %d\n", finfo->smem_len); | |
| 862 fprintf(stderr, "\ttype = %d\n", finfo->type); | |
| 863 fprintf(stderr, "\ttype_aux = %d\n", finfo->type_aux); | |
| 864 fprintf(stderr, "\tvisual = %d\n", finfo->visual); | |
| 865 fprintf(stderr, "\txpanstep = %d\n", finfo->xpanstep); | |
| 866 fprintf(stderr, "\typanstep = %d\n", finfo->ypanstep); | |
| 867 fprintf(stderr, "\tywrapstep = %d\n", finfo->ywrapstep); | |
| 868 fprintf(stderr, "\tline_length = %d\n", finfo->line_length); | |
| 869 fprintf(stderr, "\tmmio_start = %p\n", (char *)finfo->mmio_start); | |
| 870 fprintf(stderr, "\tmmio_len = %d\n", finfo->mmio_len); | |
| 871 fprintf(stderr, "\taccel = %d\n", finfo->accel); | |
| 872 } | |
| 873 #endif | |
| 874 | |
| 875 static int choose_fbmodes_mode(struct fb_var_screeninfo *vinfo) | |
| 876 { | |
| 877 int matched; | |
|
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878 FILE *modesdb; |
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879 struct fb_var_screeninfo cinfo; |
| 0 | 880 |
| 881 matched = 0; | |
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882 modesdb = fopen(FB_MODES_DB, "r"); |
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883 if ( modesdb ) { |
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884 /* Parse the mode definition file */ |
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885 while ( read_fbmodes_mode(modesdb, &cinfo) ) { |
|
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886 if ( (vinfo->xres == cinfo.xres && vinfo->yres == cinfo.yres) && |
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887 (!matched || (vinfo->bits_per_pixel == cinfo.bits_per_pixel)) ) { |
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888 vinfo->pixclock = cinfo.pixclock; |
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889 vinfo->left_margin = cinfo.left_margin; |
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890 vinfo->right_margin = cinfo.right_margin; |
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891 vinfo->upper_margin = cinfo.upper_margin; |
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892 vinfo->lower_margin = cinfo.lower_margin; |
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893 vinfo->hsync_len = cinfo.hsync_len; |
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894 vinfo->vsync_len = cinfo.vsync_len; |
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895 if ( matched ) { |
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896 break; |
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897 } |
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898 matched = 1; |
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899 } |
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900 } |
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901 fclose(modesdb); |
| 0 | 902 } |
| 903 return(matched); | |
| 904 } | |
| 905 | |
| 906 static int choose_vesa_mode(struct fb_var_screeninfo *vinfo) | |
| 907 { | |
| 908 int matched; | |
| 909 int i; | |
| 910 | |
| 911 /* Check for VESA timings */ | |
| 912 matched = 0; | |
| 913 for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { | |
| 914 if ( (vinfo->xres == vesa_timings[i].xres) && | |
| 915 (vinfo->yres == vesa_timings[i].yres) ) { | |
| 916 #ifdef FBCON_DEBUG | |
| 917 fprintf(stderr, "Using VESA timings for %dx%d\n", | |
| 918 vinfo->xres, vinfo->yres); | |
| 919 #endif | |
| 920 if ( vesa_timings[i].pixclock ) { | |
| 921 vinfo->pixclock = vesa_timings[i].pixclock; | |
| 922 } | |
| 923 vinfo->left_margin = vesa_timings[i].left; | |
| 924 vinfo->right_margin = vesa_timings[i].right; | |
| 925 vinfo->upper_margin = vesa_timings[i].upper; | |
| 926 vinfo->lower_margin = vesa_timings[i].lower; | |
| 927 vinfo->hsync_len = vesa_timings[i].hslen; | |
| 928 vinfo->vsync_len = vesa_timings[i].vslen; | |
| 929 vinfo->sync = vesa_timings[i].sync; | |
| 930 vinfo->vmode = vesa_timings[i].vmode; | |
| 931 matched = 1; | |
| 932 break; | |
| 933 } | |
| 934 } | |
| 935 return(matched); | |
| 936 } | |
| 937 | |
| 938 #ifdef VGA16_FBCON_SUPPORT | |
| 939 static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, | |
| 940 int width, int height, int bpp, Uint32 flags) | |
| 941 { | |
| 942 struct fb_fix_screeninfo finfo; | |
| 943 struct fb_var_screeninfo vinfo; | |
| 944 | |
| 945 /* Set the terminal into graphics mode */ | |
| 946 if ( FB_EnterGraphicsMode(this) < 0 ) { | |
| 947 return(NULL); | |
| 948 } | |
| 949 | |
| 950 /* Restore the original palette */ | |
| 951 FB_RestorePalette(this); | |
| 952 | |
| 953 /* Set the video mode and get the final screen format */ | |
| 954 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 955 SDL_SetError("Couldn't get console screen info"); | |
| 956 return(NULL); | |
| 957 } | |
| 958 cache_vinfo = vinfo; | |
| 959 #ifdef FBCON_DEBUG | |
| 960 fprintf(stderr, "Printing actual vinfo:\n"); | |
| 961 print_vinfo(&vinfo); | |
| 962 #endif | |
| 963 if ( ! SDL_ReallocFormat(current, bpp, 0, 0, 0, 0) ) { | |
| 964 return(NULL); | |
| 965 } | |
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966 current->format->palette->ncolors = 16; |
| 0 | 967 |
| 968 /* Get the fixed information about the console hardware. | |
| 969 This is necessary since finfo.line_length changes. | |
| 970 */ | |
| 971 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 972 SDL_SetError("Couldn't get console hardware info"); | |
| 973 return(NULL); | |
| 974 } | |
| 975 #ifdef FBCON_DEBUG | |
| 976 fprintf(stderr, "Printing actual finfo:\n"); | |
| 977 print_finfo(&finfo); | |
| 978 #endif | |
| 979 | |
| 980 /* Save hardware palette, if needed */ | |
| 981 FB_SavePalette(this, &finfo, &vinfo); | |
| 982 | |
| 983 /* Set up the new mode framebuffer */ | |
| 984 current->flags = SDL_FULLSCREEN; | |
| 985 current->w = vinfo.xres; | |
| 986 current->h = vinfo.yres; | |
| 987 current->pitch = current->w; | |
|
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988 current->pixels = SDL_malloc(current->h*current->pitch); |
| 0 | 989 |
| 990 /* Set the update rectangle function */ | |
| 991 this->UpdateRects = FB_VGA16Update; | |
| 992 | |
| 993 /* We're done */ | |
| 994 return(current); | |
| 995 } | |
| 996 #endif /* VGA16_FBCON_SUPPORT */ | |
| 997 | |
| 998 static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, | |
| 999 int width, int height, int bpp, Uint32 flags) | |
| 1000 { | |
| 1001 struct fb_fix_screeninfo finfo; | |
| 1002 struct fb_var_screeninfo vinfo; | |
| 1003 int i; | |
| 1004 Uint32 Rmask; | |
| 1005 Uint32 Gmask; | |
| 1006 Uint32 Bmask; | |
| 1007 char *surfaces_mem; | |
| 1008 int surfaces_len; | |
| 1009 | |
| 1010 /* Set the terminal into graphics mode */ | |
| 1011 if ( FB_EnterGraphicsMode(this) < 0 ) { | |
| 1012 return(NULL); | |
| 1013 } | |
| 1014 | |
| 1015 /* Restore the original palette */ | |
| 1016 FB_RestorePalette(this); | |
| 1017 | |
| 1018 /* Set the video mode and get the final screen format */ | |
| 1019 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 1020 SDL_SetError("Couldn't get console screen info"); | |
| 1021 return(NULL); | |
| 1022 } | |
| 1023 #ifdef FBCON_DEBUG | |
| 1024 fprintf(stderr, "Printing original vinfo:\n"); | |
| 1025 print_vinfo(&vinfo); | |
| 1026 #endif | |
| 4256 | 1027 /* Do not use double buffering with shadow buffer */ |
| 1028 if (shadow_fb) { | |
| 1029 flags &= ~SDL_DOUBLEBUF; | |
| 1030 } | |
| 1031 | |
| 0 | 1032 if ( (vinfo.xres != width) || (vinfo.yres != height) || |
| 1033 (vinfo.bits_per_pixel != bpp) || (flags & SDL_DOUBLEBUF) ) { | |
| 1034 vinfo.activate = FB_ACTIVATE_NOW; | |
| 1035 vinfo.accel_flags = 0; | |
| 1036 vinfo.bits_per_pixel = bpp; | |
| 1037 vinfo.xres = width; | |
| 1038 vinfo.xres_virtual = width; | |
| 1039 vinfo.yres = height; | |
| 1040 if ( flags & SDL_DOUBLEBUF ) { | |
| 1041 vinfo.yres_virtual = height*2; | |
| 1042 } else { | |
| 1043 vinfo.yres_virtual = height; | |
| 1044 } | |
| 1045 vinfo.xoffset = 0; | |
| 1046 vinfo.yoffset = 0; | |
| 1047 vinfo.red.length = vinfo.red.offset = 0; | |
| 1048 vinfo.green.length = vinfo.green.offset = 0; | |
| 1049 vinfo.blue.length = vinfo.blue.offset = 0; | |
| 1050 vinfo.transp.length = vinfo.transp.offset = 0; | |
| 1051 if ( ! choose_fbmodes_mode(&vinfo) ) { | |
| 1052 choose_vesa_mode(&vinfo); | |
| 1053 } | |
| 1054 #ifdef FBCON_DEBUG | |
| 1055 fprintf(stderr, "Printing wanted vinfo:\n"); | |
| 1056 print_vinfo(&vinfo); | |
| 1057 #endif | |
| 4256 | 1058 if ( !shadow_fb && |
| 1059 ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { | |
| 0 | 1060 vinfo.yres_virtual = height; |
| 1061 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { | |
| 1062 SDL_SetError("Couldn't set console screen info"); | |
| 1063 return(NULL); | |
| 1064 } | |
| 1065 } | |
|
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1066 } else { |
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1067 int maxheight; |
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1068 |
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1069 /* Figure out how much video memory is available */ |
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1070 if ( flags & SDL_DOUBLEBUF ) { |
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1071 maxheight = height*2; |
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1072 } else { |
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1073 maxheight = height; |
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1074 } |
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1075 if ( vinfo.yres_virtual > maxheight ) { |
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1076 vinfo.yres_virtual = maxheight; |
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1077 } |
| 0 | 1078 } |
| 1079 cache_vinfo = vinfo; | |
| 1080 #ifdef FBCON_DEBUG | |
| 1081 fprintf(stderr, "Printing actual vinfo:\n"); | |
| 1082 print_vinfo(&vinfo); | |
| 1083 #endif | |
| 1084 Rmask = 0; | |
| 1085 for ( i=0; i<vinfo.red.length; ++i ) { | |
| 1086 Rmask <<= 1; | |
| 1087 Rmask |= (0x00000001<<vinfo.red.offset); | |
| 1088 } | |
| 1089 Gmask = 0; | |
| 1090 for ( i=0; i<vinfo.green.length; ++i ) { | |
| 1091 Gmask <<= 1; | |
| 1092 Gmask |= (0x00000001<<vinfo.green.offset); | |
| 1093 } | |
| 1094 Bmask = 0; | |
| 1095 for ( i=0; i<vinfo.blue.length; ++i ) { | |
| 1096 Bmask <<= 1; | |
| 1097 Bmask |= (0x00000001<<vinfo.blue.offset); | |
| 1098 } | |
| 1099 if ( ! SDL_ReallocFormat(current, vinfo.bits_per_pixel, | |
| 1100 Rmask, Gmask, Bmask, 0) ) { | |
| 1101 return(NULL); | |
| 1102 } | |
| 1103 | |
| 1104 /* Get the fixed information about the console hardware. | |
| 1105 This is necessary since finfo.line_length changes. | |
| 1106 */ | |
| 1107 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 1108 SDL_SetError("Couldn't get console hardware info"); | |
| 1109 return(NULL); | |
| 1110 } | |
| 1111 | |
| 1112 /* Save hardware palette, if needed */ | |
| 1113 FB_SavePalette(this, &finfo, &vinfo); | |
| 1114 | |
| 4256 | 1115 if (shadow_fb) { |
| 1116 if (vinfo.bits_per_pixel == 16) { | |
| 1117 blitFunc = (rotate == FBCON_ROTATE_NONE || | |
| 1118 rotate == FBCON_ROTATE_UD) ? | |
| 1119 FB_blit16 : FB_blit16blocked; | |
| 1120 } else { | |
| 4258 | 1121 #ifdef FBCON_DEBUG |
| 4256 | 1122 fprintf(stderr, "Init vinfo:\n"); |
| 1123 print_vinfo(&vinfo); | |
| 4258 | 1124 #endif |
| 4256 | 1125 SDL_SetError("Using software buffer, but no blitter " |
| 1126 "function is available for %d bpp.", | |
| 1127 vinfo.bits_per_pixel); | |
| 1128 return(NULL); | |
| 1129 } | |
| 1130 } | |
| 1131 | |
| 0 | 1132 /* Set up the new mode framebuffer */ |
| 4256 | 1133 current->flags &= SDL_FULLSCREEN; |
| 1134 if (shadow_fb) { | |
| 1135 current->flags |= SDL_SWSURFACE; | |
| 1136 } else { | |
| 1137 current->flags |= SDL_HWSURFACE; | |
| 1138 } | |
| 0 | 1139 current->w = vinfo.xres; |
| 1140 current->h = vinfo.yres; | |
| 4256 | 1141 if (shadow_fb) { |
| 1142 current->pitch = current->w * ((vinfo.bits_per_pixel + 7) / 8); | |
| 1143 current->pixels = shadow_mem; | |
| 1144 physlinebytes = finfo.line_length; | |
| 1145 } else { | |
| 1146 current->pitch = finfo.line_length; | |
| 1147 current->pixels = mapped_mem+mapped_offset; | |
| 1148 } | |
| 0 | 1149 |
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1150 /* Set up the information for hardware surfaces */ |
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1151 surfaces_mem = (char *)current->pixels + |
| 4256 | 1152 vinfo.yres_virtual*current->pitch; |
| 1153 surfaces_len = (shadow_fb) ? | |
| 1154 0 : (mapped_memlen-(surfaces_mem-mapped_mem)); | |
| 1155 | |
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1156 FB_FreeHWSurfaces(this); |
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1157 FB_InitHWSurfaces(this, current, surfaces_mem, surfaces_len); |
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1158 |
| 0 | 1159 /* Let the application know we have a hardware palette */ |
| 1160 switch (finfo.visual) { | |
| 4256 | 1161 case FB_VISUAL_PSEUDOCOLOR: |
| 0 | 1162 current->flags |= SDL_HWPALETTE; |
| 1163 break; | |
| 4256 | 1164 default: |
| 0 | 1165 break; |
| 1166 } | |
| 1167 | |
| 1168 /* Update for double-buffering, if we can */ | |
| 1169 if ( flags & SDL_DOUBLEBUF ) { | |
| 1170 if ( vinfo.yres_virtual == (height*2) ) { | |
| 1171 current->flags |= SDL_DOUBLEBUF; | |
| 1172 flip_page = 0; | |
| 1173 flip_address[0] = (char *)current->pixels; | |
| 1174 flip_address[1] = (char *)current->pixels+ | |
| 4256 | 1175 current->h*current->pitch; |
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1176 this->screen = current; |
| 0 | 1177 FB_FlipHWSurface(this, current); |
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1178 this->screen = NULL; |
| 0 | 1179 } |
| 1180 } | |
| 1181 | |
| 1182 /* Set the update rectangle function */ | |
| 1183 this->UpdateRects = FB_DirectUpdate; | |
| 1184 | |
| 1185 /* We're done */ | |
| 1186 return(current); | |
| 1187 } | |
| 1188 | |
| 1189 #ifdef FBCON_DEBUG | |
| 1190 void FB_DumpHWSurfaces(_THIS) | |
| 1191 { | |
| 1192 vidmem_bucket *bucket; | |
| 1193 | |
| 1194 printf("Memory left: %d (%d total)\n", surfaces_memleft, surfaces_memtotal); | |
| 1195 printf("\n"); | |
| 1196 printf(" Base Size\n"); | |
| 1197 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 1198 printf("Bucket: %p, %d (%s)\n", bucket->base, bucket->size, bucket->used ? "used" : "free"); | |
| 1199 if ( bucket->prev ) { | |
| 1200 if ( bucket->base != bucket->prev->base+bucket->prev->size ) { | |
| 1201 printf("Warning, corrupt bucket list! (prev)\n"); | |
| 1202 } | |
| 1203 } else { | |
| 1204 if ( bucket != &surfaces ) { | |
| 1205 printf("Warning, corrupt bucket list! (!prev)\n"); | |
| 1206 } | |
| 1207 } | |
| 1208 if ( bucket->next ) { | |
| 1209 if ( bucket->next->base != bucket->base+bucket->size ) { | |
| 1210 printf("Warning, corrupt bucket list! (next)\n"); | |
| 1211 } | |
| 1212 } | |
| 1213 } | |
| 1214 printf("\n"); | |
| 1215 } | |
| 1216 #endif | |
| 1217 | |
|
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1218 static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size) |
| 0 | 1219 { |
|
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1220 vidmem_bucket *bucket; |
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1221 |
| 0 | 1222 surfaces_memtotal = size; |
| 1223 surfaces_memleft = size; | |
|
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1224 |
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1225 if ( surfaces_memleft > 0 ) { |
|
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1226 bucket = (vidmem_bucket *)SDL_malloc(sizeof(*bucket)); |
|
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1227 if ( bucket == NULL ) { |
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1228 SDL_OutOfMemory(); |
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1229 return(-1); |
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1230 } |
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1231 bucket->prev = &surfaces; |
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1232 bucket->used = 0; |
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1233 bucket->dirty = 0; |
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1234 bucket->base = base; |
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1235 bucket->size = size; |
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1236 bucket->next = NULL; |
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1237 } else { |
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1238 bucket = NULL; |
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1239 } |
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1240 |
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1241 surfaces.prev = NULL; |
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1242 surfaces.used = 1; |
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1243 surfaces.dirty = 0; |
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1244 surfaces.base = screen->pixels; |
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1245 surfaces.size = (unsigned int)((long)base - (long)surfaces.base); |
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1246 surfaces.next = bucket; |
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1247 screen->hwdata = (struct private_hwdata *)&surfaces; |
| 0 | 1248 return(0); |
| 1249 } | |
| 1250 static void FB_FreeHWSurfaces(_THIS) | |
| 1251 { | |
| 1252 vidmem_bucket *bucket, *freeable; | |
| 1253 | |
| 1254 bucket = surfaces.next; | |
| 1255 while ( bucket ) { | |
| 1256 freeable = bucket; | |
| 1257 bucket = bucket->next; | |
|
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1258 SDL_free(freeable); |
| 0 | 1259 } |
| 1260 surfaces.next = NULL; | |
| 1261 } | |
| 1262 | |
| 1263 static int FB_AllocHWSurface(_THIS, SDL_Surface *surface) | |
| 1264 { | |
| 1265 vidmem_bucket *bucket; | |
| 1266 int size; | |
| 1267 int extra; | |
| 1268 | |
| 1269 /* Temporarily, we only allow surfaces the same width as display. | |
| 1270 Some blitters require the pitch between two hardware surfaces | |
| 1271 to be the same. Others have interesting alignment restrictions. | |
| 1272 Until someone who knows these details looks at the code... | |
| 1273 */ | |
| 1274 if ( surface->pitch > SDL_VideoSurface->pitch ) { | |
| 1275 SDL_SetError("Surface requested wider than screen"); | |
| 1276 return(-1); | |
| 1277 } | |
| 1278 surface->pitch = SDL_VideoSurface->pitch; | |
| 1279 size = surface->h * surface->pitch; | |
| 1280 #ifdef FBCON_DEBUG | |
| 1281 fprintf(stderr, "Allocating bucket of %d bytes\n", size); | |
| 1282 #endif | |
| 1283 | |
| 1284 /* Quick check for available mem */ | |
| 1285 if ( size > surfaces_memleft ) { | |
| 1286 SDL_SetError("Not enough video memory"); | |
| 1287 return(-1); | |
| 1288 } | |
| 1289 | |
| 1290 /* Search for an empty bucket big enough */ | |
| 1291 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 1292 if ( ! bucket->used && (size <= bucket->size) ) { | |
| 1293 break; | |
| 1294 } | |
| 1295 } | |
| 1296 if ( bucket == NULL ) { | |
| 1297 SDL_SetError("Video memory too fragmented"); | |
| 1298 return(-1); | |
| 1299 } | |
| 1300 | |
| 1301 /* Create a new bucket for left-over memory */ | |
| 1302 extra = (bucket->size - size); | |
| 1303 if ( extra ) { | |
| 1304 vidmem_bucket *newbucket; | |
| 1305 | |
| 1306 #ifdef FBCON_DEBUG | |
| 1307 fprintf(stderr, "Adding new free bucket of %d bytes\n", extra); | |
| 1308 #endif | |
|
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1309 newbucket = (vidmem_bucket *)SDL_malloc(sizeof(*newbucket)); |
| 0 | 1310 if ( newbucket == NULL ) { |
| 1311 SDL_OutOfMemory(); | |
| 1312 return(-1); | |
| 1313 } | |
| 1314 newbucket->prev = bucket; | |
| 1315 newbucket->used = 0; | |
| 1316 newbucket->base = bucket->base+size; | |
| 1317 newbucket->size = extra; | |
| 1318 newbucket->next = bucket->next; | |
| 1319 if ( bucket->next ) { | |
| 1320 bucket->next->prev = newbucket; | |
| 1321 } | |
| 1322 bucket->next = newbucket; | |
| 1323 } | |
| 1324 | |
| 1325 /* Set the current bucket values and return it! */ | |
| 1326 bucket->used = 1; | |
| 1327 bucket->size = size; | |
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1328 bucket->dirty = 0; |
| 0 | 1329 #ifdef FBCON_DEBUG |
| 1330 fprintf(stderr, "Allocated %d bytes at %p\n", bucket->size, bucket->base); | |
| 1331 #endif | |
| 1332 surfaces_memleft -= size; | |
| 1333 surface->flags |= SDL_HWSURFACE; | |
| 1334 surface->pixels = bucket->base; | |
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1335 surface->hwdata = (struct private_hwdata *)bucket; |
| 0 | 1336 return(0); |
| 1337 } | |
| 1338 static void FB_FreeHWSurface(_THIS, SDL_Surface *surface) | |
| 1339 { | |
| 1340 vidmem_bucket *bucket, *freeable; | |
| 1341 | |
| 1342 /* Look for the bucket in the current list */ | |
| 1343 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
|
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1344 if ( bucket == (vidmem_bucket *)surface->hwdata ) { |
| 0 | 1345 break; |
| 1346 } | |
| 1347 } | |
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1348 if ( bucket && bucket->used ) { |
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1349 /* Add the memory back to the total */ |
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1350 #ifdef DGA_DEBUG |
| 0 | 1351 printf("Freeing bucket of %d bytes\n", bucket->size); |
| 1352 #endif | |
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1353 surfaces_memleft += bucket->size; |
| 0 | 1354 |
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1355 /* Can we merge the space with surrounding buckets? */ |
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1356 bucket->used = 0; |
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1357 if ( bucket->next && ! bucket->next->used ) { |
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1358 #ifdef DGA_DEBUG |
| 0 | 1359 printf("Merging with next bucket, for %d total bytes\n", bucket->size+bucket->next->size); |
| 1360 #endif | |
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1361 freeable = bucket->next; |
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1362 bucket->size += bucket->next->size; |
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1363 bucket->next = bucket->next->next; |
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1364 if ( bucket->next ) { |
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1365 bucket->next->prev = bucket; |
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1366 } |
|
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1367 SDL_free(freeable); |
| 0 | 1368 } |
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1369 if ( bucket->prev && ! bucket->prev->used ) { |
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1370 #ifdef DGA_DEBUG |
| 0 | 1371 printf("Merging with previous bucket, for %d total bytes\n", bucket->prev->size+bucket->size); |
| 1372 #endif | |
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1373 freeable = bucket; |
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1374 bucket->prev->size += bucket->size; |
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1375 bucket->prev->next = bucket->next; |
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1376 if ( bucket->next ) { |
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1377 bucket->next->prev = bucket->prev; |
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1378 } |
|
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1379 SDL_free(freeable); |
| 0 | 1380 } |
| 1381 } | |
| 1382 surface->pixels = NULL; | |
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1383 surface->hwdata = NULL; |
| 0 | 1384 } |
|
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1385 |
| 0 | 1386 static int FB_LockHWSurface(_THIS, SDL_Surface *surface) |
| 1387 { | |
| 1780 | 1388 if ( switched_away ) { |
| 1389 return -2; /* no hardware access */ | |
|
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1390 } |
|
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1391 if ( surface == this->screen ) { |
| 0 | 1392 SDL_mutexP(hw_lock); |
|
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1393 if ( FB_IsSurfaceBusy(surface) ) { |
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1394 FB_WaitBusySurfaces(this); |
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1395 } |
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1396 } else { |
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1397 if ( FB_IsSurfaceBusy(surface) ) { |
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1398 FB_WaitBusySurfaces(this); |
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1399 } |
| 0 | 1400 } |
| 1401 return(0); | |
| 1402 } | |
| 1403 static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
| 1404 { | |
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1405 if ( surface == this->screen ) { |
| 0 | 1406 SDL_mutexV(hw_lock); |
| 1407 } | |
| 1408 } | |
| 1409 | |
| 1410 static void FB_WaitVBL(_THIS) | |
| 1411 { | |
| 1412 #ifdef FBIOWAITRETRACE /* Heheh, this didn't make it into the main kernel */ | |
| 1413 ioctl(console_fd, FBIOWAITRETRACE, 0); | |
| 1414 #endif | |
| 1415 return; | |
| 1416 } | |
| 1417 | |
|
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1418 static void FB_WaitIdle(_THIS) |
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1419 { |
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1420 return; |
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1421 } |
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1422 |
| 0 | 1423 static int FB_FlipHWSurface(_THIS, SDL_Surface *surface) |
| 1424 { | |
| 1780 | 1425 if ( switched_away ) { |
| 1426 return -2; /* no hardware access */ | |
| 1427 } | |
| 1428 | |
| 0 | 1429 /* Wait for vertical retrace and then flip display */ |
| 1430 cache_vinfo.yoffset = flip_page*surface->h; | |
|
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1431 if ( FB_IsSurfaceBusy(this->screen) ) { |
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1432 FB_WaitBusySurfaces(this); |
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1433 } |
| 0 | 1434 wait_vbl(this); |
| 1435 if ( ioctl(console_fd, FBIOPAN_DISPLAY, &cache_vinfo) < 0 ) { | |
| 1436 SDL_SetError("ioctl(FBIOPAN_DISPLAY) failed"); | |
| 1437 return(-1); | |
| 1438 } | |
| 1439 flip_page = !flip_page; | |
| 1440 | |
| 1441 surface->pixels = flip_address[flip_page]; | |
| 1442 return(0); | |
| 1443 } | |
| 1444 | |
| 4256 | 1445 static void FB_blit16(Uint8 *byte_src_pos, int src_right_delta, int src_down_delta, |
| 1446 Uint8 *byte_dst_pos, int dst_linebytes, int width, int height) | |
| 1447 { | |
| 1448 int w; | |
| 1449 Uint16 *src_pos = (Uint16 *)byte_src_pos; | |
| 1450 Uint16 *dst_pos = (Uint16 *)byte_dst_pos; | |
| 1451 | |
| 1452 while (height) { | |
| 1453 Uint16 *src = src_pos; | |
| 1454 Uint16 *dst = dst_pos; | |
| 1455 for (w = width; w != 0; w--) { | |
| 1456 *dst = *src; | |
| 1457 src += src_right_delta; | |
| 1458 dst++; | |
| 1459 } | |
| 1460 dst_pos = (Uint16 *)((Uint8 *)dst_pos + dst_linebytes); | |
| 1461 src_pos += src_down_delta; | |
| 1462 height--; | |
| 1463 } | |
| 1464 } | |
| 1465 | |
| 1466 #define BLOCKSIZE_W 32 | |
| 1467 #define BLOCKSIZE_H 32 | |
| 1468 | |
| 1469 static void FB_blit16blocked(Uint8 *byte_src_pos, int src_right_delta, int src_down_delta, | |
| 1470 Uint8 *byte_dst_pos, int dst_linebytes, int width, int height) | |
| 1471 { | |
| 1472 int w; | |
| 1473 Uint16 *src_pos = (Uint16 *)byte_src_pos; | |
| 1474 Uint16 *dst_pos = (Uint16 *)byte_dst_pos; | |
| 1475 | |
| 1476 while (height > 0) { | |
| 1477 Uint16 *src = src_pos; | |
| 1478 Uint16 *dst = dst_pos; | |
| 1479 for (w = width; w > 0; w -= BLOCKSIZE_W) { | |
| 1480 FB_blit16((Uint8 *)src, | |
| 1481 src_right_delta, | |
| 1482 src_down_delta, | |
| 1483 (Uint8 *)dst, | |
| 1484 dst_linebytes, | |
| 1485 min(w, BLOCKSIZE_W), | |
| 1486 min(height, BLOCKSIZE_H)); | |
| 1487 src += src_right_delta * BLOCKSIZE_W; | |
| 1488 dst += BLOCKSIZE_W; | |
| 1489 } | |
| 1490 dst_pos = (Uint16 *)((Uint8 *)dst_pos + dst_linebytes * BLOCKSIZE_H); | |
| 1491 src_pos += src_down_delta * BLOCKSIZE_H; | |
| 1492 height -= BLOCKSIZE_H; | |
| 1493 } | |
| 1494 } | |
| 1495 | |
| 0 | 1496 static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) |
| 1497 { | |
| 4256 | 1498 int width = cache_vinfo.xres; |
| 1499 int height = cache_vinfo.yres; | |
| 1500 int bytes_per_pixel = (cache_vinfo.bits_per_pixel + 7) / 8; | |
| 1501 int i; | |
| 1502 | |
| 1503 if (!shadow_fb) { | |
| 1504 /* The application is already updating the visible video memory */ | |
| 1505 return; | |
| 1506 } | |
| 1507 | |
| 1508 if (cache_vinfo.bits_per_pixel != 16) { | |
| 1509 SDL_SetError("Shadow copy only implemented for 16 bpp"); | |
| 1510 return; | |
| 1511 } | |
| 1512 | |
| 1513 for (i = 0; i < numrects; i++) { | |
| 1514 int x1, y1, x2, y2; | |
| 1515 int scr_x1, scr_y1, scr_x2, scr_y2; | |
| 1516 int sha_x1, sha_y1; | |
| 1517 int shadow_right_delta; /* Address change when moving right in dest */ | |
| 1518 int shadow_down_delta; /* Address change when moving down in dest */ | |
| 1519 char *src_start; | |
| 1520 char *dst_start; | |
| 1521 | |
| 1522 x1 = rects[i].x; | |
| 1523 y1 = rects[i].y; | |
| 1524 x2 = x1 + rects[i].w; | |
| 1525 y2 = y1 + rects[i].h; | |
| 1526 | |
| 1527 if (x1 < 0) { | |
| 1528 x1 = 0; | |
| 1529 } else if (x1 > width) { | |
| 1530 x1 = width; | |
| 1531 } | |
| 1532 if (x2 < 0) { | |
| 1533 x2 = 0; | |
| 1534 } else if (x2 > width) { | |
| 1535 x2 = width; | |
| 1536 } | |
| 1537 if (y1 < 0) { | |
| 1538 y1 = 0; | |
| 1539 } else if (y1 > height) { | |
| 1540 y1 = height; | |
| 1541 } | |
| 1542 if (y2 < 0) { | |
| 1543 y2 = 0; | |
| 1544 } else if (y2 > height) { | |
| 1545 y2 = height; | |
| 1546 } | |
| 1547 if (x2 <= x1 || y2 <= y1) { | |
| 1548 continue; | |
| 1549 } | |
| 1550 | |
| 1551 switch (rotate) { | |
| 1552 case FBCON_ROTATE_NONE: | |
| 1553 sha_x1 = scr_x1 = x1; | |
| 1554 sha_y1 = scr_y1 = y1; | |
| 1555 scr_x2 = x2; | |
| 1556 scr_y2 = y2; | |
| 1557 shadow_right_delta = 1; | |
| 1558 shadow_down_delta = width; | |
| 1559 break; | |
| 1560 case FBCON_ROTATE_CCW: | |
| 1561 scr_x1 = y1; | |
| 1562 scr_y1 = width - x2; | |
| 1563 scr_x2 = y2; | |
| 1564 scr_y2 = width - x1; | |
| 1565 sha_x1 = x2 - 1; | |
| 1566 sha_y1 = y1; | |
| 1567 shadow_right_delta = width; | |
| 1568 shadow_down_delta = -1; | |
| 1569 break; | |
| 1570 case FBCON_ROTATE_UD: | |
| 1571 scr_x1 = width - x2; | |
| 1572 scr_y1 = height - y2; | |
| 1573 scr_x2 = width - x1; | |
| 1574 scr_y2 = height - y1; | |
| 1575 sha_x1 = x2 - 1; | |
| 1576 sha_y1 = y2 - 1; | |
| 1577 shadow_right_delta = -1; | |
| 1578 shadow_down_delta = -width; | |
| 1579 break; | |
| 1580 case FBCON_ROTATE_CW: | |
| 1581 scr_x1 = height - y2; | |
| 1582 scr_y1 = x1; | |
| 1583 scr_x2 = height - y1; | |
| 1584 scr_y2 = x2; | |
| 1585 sha_x1 = x1; | |
| 1586 sha_y1 = y2 - 1; | |
| 1587 shadow_right_delta = -width; | |
| 1588 shadow_down_delta = 1; | |
| 1589 break; | |
| 1590 default: | |
| 1591 SDL_SetError("Unknown rotation"); | |
| 1592 return; | |
| 1593 } | |
| 1594 | |
| 1595 src_start = shadow_mem + | |
| 1596 (sha_y1 * width + sha_x1) * bytes_per_pixel; | |
| 1597 dst_start = mapped_mem + mapped_offset + scr_y1 * physlinebytes + | |
| 1598 scr_x1 * bytes_per_pixel; | |
| 1599 | |
| 1600 blitFunc((Uint8 *) src_start, | |
| 1601 shadow_right_delta, | |
| 1602 shadow_down_delta, | |
| 1603 (Uint8 *) dst_start, | |
| 1604 physlinebytes, | |
| 1605 scr_x2 - scr_x1, | |
| 1606 scr_y2 - scr_y1); | |
| 1607 } | |
| 0 | 1608 } |
| 1609 | |
| 1610 #ifdef VGA16_FBCON_SUPPORT | |
| 1611 /* Code adapted with thanks from the XFree86 VGA16 driver! :) */ | |
| 1612 #define writeGr(index, value) \ | |
| 1613 outb(index, 0x3CE); \ | |
| 1614 outb(value, 0x3CF); | |
| 1615 #define writeSeq(index, value) \ | |
| 1616 outb(index, 0x3C4); \ | |
| 1617 outb(value, 0x3C5); | |
| 1618 | |
| 1619 static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects) | |
| 1620 { | |
| 1621 SDL_Surface *screen; | |
| 1622 int width, height, FBPitch, left, i, j, SRCPitch, phase; | |
| 1623 register Uint32 m; | |
| 1624 Uint8 s1, s2, s3, s4; | |
| 1625 Uint32 *src, *srcPtr; | |
| 1626 Uint8 *dst, *dstPtr; | |
| 1627 | |
| 1780 | 1628 if ( switched_away ) { |
| 1629 return; /* no hardware access */ | |
| 1630 } | |
| 1631 | |
| 0 | 1632 screen = this->screen; |
| 1633 FBPitch = screen->w >> 3; | |
| 1634 SRCPitch = screen->pitch >> 2; | |
| 1635 | |
| 1636 writeGr(0x03, 0x00); | |
| 1637 writeGr(0x05, 0x00); | |
| 1638 writeGr(0x01, 0x00); | |
| 1639 writeGr(0x08, 0xFF); | |
| 1640 | |
| 1641 while(numrects--) { | |
| 1642 left = rects->x & ~7; | |
| 1643 width = (rects->w + 7) >> 3; | |
| 1644 height = rects->h; | |
| 1645 src = (Uint32*)screen->pixels + (rects->y * SRCPitch) + (left >> 2); | |
| 1646 dst = (Uint8*)mapped_mem + (rects->y * FBPitch) + (left >> 3); | |
| 1647 | |
| 1648 if((phase = (long)dst & 3L)) { | |
| 1649 phase = 4 - phase; | |
| 1650 if(phase > width) phase = width; | |
| 1651 width -= phase; | |
| 1652 } | |
| 1653 | |
| 1654 while(height--) { | |
| 1655 writeSeq(0x02, 1 << 0); | |
| 1656 dstPtr = dst; | |
| 1657 srcPtr = src; | |
| 1658 i = width; | |
| 1659 j = phase; | |
| 1660 while(j--) { | |
| 1661 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1662 *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1663 srcPtr += 2; | |
| 1664 } | |
| 1665 while(i >= 4) { | |
| 1666 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1667 s1 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1668 m = (srcPtr[3] & 0x01010101) | ((srcPtr[2] & 0x01010101) << 4); | |
| 1669 s2 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1670 m = (srcPtr[5] & 0x01010101) | ((srcPtr[4] & 0x01010101) << 4); | |
| 1671 s3 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1672 m = (srcPtr[7] & 0x01010101) | ((srcPtr[6] & 0x01010101) << 4); | |
| 1673 s4 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1674 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1675 srcPtr += 8; | |
| 1676 dstPtr += 4; | |
| 1677 i -= 4; | |
| 1678 } | |
| 1679 while(i--) { | |
| 1680 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1681 *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1682 srcPtr += 2; | |
| 1683 } | |
| 1684 | |
| 1685 writeSeq(0x02, 1 << 1); | |
| 1686 dstPtr = dst; | |
| 1687 srcPtr = src; | |
| 1688 i = width; | |
| 1689 j = phase; | |
| 1690 while(j--) { | |
| 1691 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1692 *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1693 srcPtr += 2; | |
| 1694 } | |
| 1695 while(i >= 4) { | |
| 1696 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1697 s1 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1698 m = (srcPtr[3] & 0x02020202) | ((srcPtr[2] & 0x02020202) << 4); | |
| 1699 s2 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1700 m = (srcPtr[5] & 0x02020202) | ((srcPtr[4] & 0x02020202) << 4); | |
| 1701 s3 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1702 m = (srcPtr[7] & 0x02020202) | ((srcPtr[6] & 0x02020202) << 4); | |
| 1703 s4 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1704 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1705 srcPtr += 8; | |
| 1706 dstPtr += 4; | |
| 1707 i -= 4; | |
| 1708 } | |
| 1709 while(i--) { | |
| 1710 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1711 *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1712 srcPtr += 2; | |
| 1713 } | |
| 1714 | |
| 1715 writeSeq(0x02, 1 << 2); | |
| 1716 dstPtr = dst; | |
| 1717 srcPtr = src; | |
| 1718 i = width; | |
| 1719 j = phase; | |
| 1720 while(j--) { | |
| 1721 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1722 *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1723 srcPtr += 2; | |
| 1724 } | |
| 1725 while(i >= 4) { | |
| 1726 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1727 s1 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1728 m = (srcPtr[3] & 0x04040404) | ((srcPtr[2] & 0x04040404) << 4); | |
| 1729 s2 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1730 m = (srcPtr[5] & 0x04040404) | ((srcPtr[4] & 0x04040404) << 4); | |
| 1731 s3 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1732 m = (srcPtr[7] & 0x04040404) | ((srcPtr[6] & 0x04040404) << 4); | |
| 1733 s4 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1734 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1735 srcPtr += 8; | |
| 1736 dstPtr += 4; | |
| 1737 i -= 4; | |
| 1738 } | |
| 1739 while(i--) { | |
| 1740 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1741 *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1742 srcPtr += 2; | |
| 1743 } | |
| 1744 | |
| 1745 writeSeq(0x02, 1 << 3); | |
| 1746 dstPtr = dst; | |
| 1747 srcPtr = src; | |
| 1748 i = width; | |
| 1749 j = phase; | |
| 1750 while(j--) { | |
| 1751 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1752 *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1753 srcPtr += 2; | |
| 1754 } | |
| 1755 while(i >= 4) { | |
| 1756 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1757 s1 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1758 m = (srcPtr[3] & 0x08080808) | ((srcPtr[2] & 0x08080808) << 4); | |
| 1759 s2 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1760 m = (srcPtr[5] & 0x08080808) | ((srcPtr[4] & 0x08080808) << 4); | |
| 1761 s3 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1762 m = (srcPtr[7] & 0x08080808) | ((srcPtr[6] & 0x08080808) << 4); | |
| 1763 s4 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1764 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1765 srcPtr += 8; | |
| 1766 dstPtr += 4; | |
| 1767 i -= 4; | |
| 1768 } | |
| 1769 while(i--) { | |
| 1770 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1771 *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1772 srcPtr += 2; | |
| 1773 } | |
| 1774 | |
| 1775 dst += FBPitch; | |
| 1776 src += SRCPitch; | |
| 1777 } | |
| 1778 rects++; | |
| 1779 } | |
| 1780 } | |
| 1781 #endif /* VGA16_FBCON_SUPPORT */ | |
| 1782 | |
| 1783 void FB_SavePaletteTo(_THIS, int palette_len, __u16 *area) | |
| 1784 { | |
| 1785 struct fb_cmap cmap; | |
| 1786 | |
| 1787 cmap.start = 0; | |
| 1788 cmap.len = palette_len; | |
| 1789 cmap.red = &area[0*palette_len]; | |
| 1790 cmap.green = &area[1*palette_len]; | |
| 1791 cmap.blue = &area[2*palette_len]; | |
| 1792 cmap.transp = NULL; | |
| 1793 ioctl(console_fd, FBIOGETCMAP, &cmap); | |
| 1794 } | |
| 1795 | |
| 1796 void FB_RestorePaletteFrom(_THIS, int palette_len, __u16 *area) | |
| 1797 { | |
| 1798 struct fb_cmap cmap; | |
| 1799 | |
| 1800 cmap.start = 0; | |
| 1801 cmap.len = palette_len; | |
| 1802 cmap.red = &area[0*palette_len]; | |
| 1803 cmap.green = &area[1*palette_len]; | |
| 1804 cmap.blue = &area[2*palette_len]; | |
| 1805 cmap.transp = NULL; | |
| 1806 ioctl(console_fd, FBIOPUTCMAP, &cmap); | |
| 1807 } | |
| 1808 | |
| 1809 static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, | |
| 1810 struct fb_var_screeninfo *vinfo) | |
| 1811 { | |
| 1812 int i; | |
| 1813 | |
| 1814 /* Save hardware palette, if needed */ | |
| 1815 if ( finfo->visual == FB_VISUAL_PSEUDOCOLOR ) { | |
| 1816 saved_cmaplen = 1<<vinfo->bits_per_pixel; | |
|
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1817 saved_cmap=(__u16 *)SDL_malloc(3*saved_cmaplen*sizeof(*saved_cmap)); |
| 0 | 1818 if ( saved_cmap != NULL ) { |
| 1819 FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); | |
| 1820 } | |
| 1821 } | |
| 1822 | |
| 1823 /* Added support for FB_VISUAL_DIRECTCOLOR. | |
| 1824 With this mode pixel information is passed through the palette... | |
| 1825 Neat fading and gamma correction effects can be had by simply | |
| 1826 fooling around with the palette instead of changing the pixel | |
| 1827 values themselves... Very neat! | |
| 1828 | |
| 1829 Adam Meyerowitz 1/19/2000 | |
| 1830 ameyerow@optonline.com | |
| 1831 */ | |
| 1832 if ( finfo->visual == FB_VISUAL_DIRECTCOLOR ) { | |
| 1833 __u16 new_entries[3*256]; | |
| 1834 | |
| 1835 /* Save the colormap */ | |
| 1836 saved_cmaplen = 256; | |
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1837 saved_cmap=(__u16 *)SDL_malloc(3*saved_cmaplen*sizeof(*saved_cmap)); |
| 0 | 1838 if ( saved_cmap != NULL ) { |
| 1839 FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); | |
| 1840 } | |
| 1841 | |
| 1842 /* Allocate new identity colormap */ | |
| 1843 for ( i=0; i<256; ++i ) { | |
| 1844 new_entries[(0*256)+i] = | |
| 1845 new_entries[(1*256)+i] = | |
| 1846 new_entries[(2*256)+i] = (i<<8)|i; | |
| 1847 } | |
| 1848 FB_RestorePaletteFrom(this, 256, new_entries); | |
| 1849 } | |
| 1850 } | |
| 1851 | |
| 1852 static void FB_RestorePalette(_THIS) | |
| 1853 { | |
| 1854 /* Restore the original palette */ | |
| 1855 if ( saved_cmap ) { | |
| 1856 FB_RestorePaletteFrom(this, saved_cmaplen, saved_cmap); | |
|
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1857 SDL_free(saved_cmap); |
| 0 | 1858 saved_cmap = NULL; |
| 1859 } | |
| 1860 } | |
| 1861 | |
| 1862 static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | |
| 1863 { | |
| 1864 int i; | |
| 1865 __u16 r[256]; | |
| 1866 __u16 g[256]; | |
| 1867 __u16 b[256]; | |
| 1868 struct fb_cmap cmap; | |
| 1869 | |
| 1870 /* Set up the colormap */ | |
| 1871 for (i = 0; i < ncolors; i++) { | |
| 1872 r[i] = colors[i].r << 8; | |
| 1873 g[i] = colors[i].g << 8; | |
| 1874 b[i] = colors[i].b << 8; | |
| 1875 } | |
| 1876 cmap.start = firstcolor; | |
| 1877 cmap.len = ncolors; | |
| 1878 cmap.red = r; | |
| 1879 cmap.green = g; | |
| 1880 cmap.blue = b; | |
| 1881 cmap.transp = NULL; | |
| 1882 | |
| 1883 if( (ioctl(console_fd, FBIOPUTCMAP, &cmap) < 0) || | |
| 1884 !(this->screen->flags & SDL_HWPALETTE) ) { | |
| 1885 colors = this->screen->format->palette->colors; | |
| 1886 ncolors = this->screen->format->palette->ncolors; | |
| 1887 cmap.start = 0; | |
| 1888 cmap.len = ncolors; | |
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1889 SDL_memset(r, 0, sizeof(r)); |
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1890 SDL_memset(g, 0, sizeof(g)); |
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1891 SDL_memset(b, 0, sizeof(b)); |
| 0 | 1892 if ( ioctl(console_fd, FBIOGETCMAP, &cmap) == 0 ) { |
| 1893 for ( i=ncolors-1; i>=0; --i ) { | |
| 1894 colors[i].r = (r[i]>>8); | |
| 1895 colors[i].g = (g[i]>>8); | |
| 1896 colors[i].b = (b[i]>>8); | |
| 1897 } | |
| 1898 } | |
| 1899 return(0); | |
| 1900 } | |
| 1901 return(1); | |
| 1902 } | |
| 1903 | |
| 1904 /* Note: If we are terminated, this could be called in the middle of | |
| 1905 another SDL video routine -- notably UpdateRects. | |
| 1906 */ | |
| 1907 static void FB_VideoQuit(_THIS) | |
| 1908 { | |
| 1909 int i, j; | |
| 1910 | |
| 1911 if ( this->screen ) { | |
| 1912 /* Clear screen and tell SDL not to free the pixels */ | |
| 1913 if ( this->screen->pixels && FB_InGraphicsMode(this) ) { | |
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1914 #if defined(__powerpc__) || defined(__ia64__) /* SIGBUS when using SDL_memset() ?? */ |
| 0 | 1915 Uint8 *rowp = (Uint8 *)this->screen->pixels; |
| 1916 int left = this->screen->pitch*this->screen->h; | |
| 1917 while ( left-- ) { *rowp++ = 0; } | |
| 1918 #else | |
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1919 SDL_memset(this->screen->pixels,0,this->screen->h*this->screen->pitch); |
| 0 | 1920 #endif |
| 1921 } | |
| 1922 /* This test fails when using the VGA16 shadow memory */ | |
| 1923 if ( ((char *)this->screen->pixels >= mapped_mem) && | |
| 1924 ((char *)this->screen->pixels < (mapped_mem+mapped_memlen)) ) { | |
| 1925 this->screen->pixels = NULL; | |
| 1926 } | |
| 1927 } | |
| 1928 | |
| 1929 /* Clear the lock mutex */ | |
| 1930 if ( hw_lock ) { | |
| 1931 SDL_DestroyMutex(hw_lock); | |
| 1932 hw_lock = NULL; | |
| 1933 } | |
| 1934 | |
| 1935 /* Clean up defined video modes */ | |
| 1936 for ( i=0; i<NUM_MODELISTS; ++i ) { | |
| 1937 if ( SDL_modelist[i] != NULL ) { | |
| 1938 for ( j=0; SDL_modelist[i][j]; ++j ) { | |
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parents:
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changeset
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1939 SDL_free(SDL_modelist[i][j]); |
| 0 | 1940 } |
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Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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1941 SDL_free(SDL_modelist[i]); |
| 0 | 1942 SDL_modelist[i] = NULL; |
| 1943 } | |
| 1944 } | |
| 1945 | |
| 1946 /* Clean up the memory bucket list */ | |
| 1947 FB_FreeHWSurfaces(this); | |
| 1948 | |
| 1949 /* Close console and input file descriptors */ | |
| 1950 if ( console_fd > 0 ) { | |
| 1951 /* Unmap the video framebuffer and I/O registers */ | |
| 1952 if ( mapped_mem ) { | |
| 1953 munmap(mapped_mem, mapped_memlen); | |
| 1954 mapped_mem = NULL; | |
| 1955 } | |
| 1956 if ( mapped_io ) { | |
| 1957 munmap(mapped_io, mapped_iolen); | |
| 1958 mapped_io = NULL; | |
| 1959 } | |
| 1960 | |
| 1961 /* Restore the original video mode and palette */ | |
| 1962 if ( FB_InGraphicsMode(this) ) { | |
| 1963 FB_RestorePalette(this); | |
| 1964 ioctl(console_fd, FBIOPUT_VSCREENINFO, &saved_vinfo); | |
| 1965 } | |
| 1966 | |
| 1967 /* We're all done with the framebuffer */ | |
| 1968 close(console_fd); | |
| 1969 console_fd = -1; | |
| 1970 } | |
| 1971 FB_CloseMouse(this); | |
| 1972 FB_CloseKeyboard(this); | |
| 1973 } |