| 1 | /*␊ |
| 2 | * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved.␊ |
| 3 | *␊ |
| 4 | * @APPLE_LICENSE_HEADER_START@␊ |
| 5 | * ␊ |
| 6 | * Portions Copyright (c) 1999-2003 Apple Computer, Inc. All Rights␊ |
| 7 | * Reserved. This file contains Original Code and/or Modifications of␊ |
| 8 | * Original Code as defined in and that are subject to the Apple Public␊ |
| 9 | * Source License Version 2.0 (the "License"). You may not use this file␊ |
| 10 | * except in compliance with the License. Please obtain a copy of the␊ |
| 11 | * License at http://www.apple.com/publicsource and read it before using␊ |
| 12 | * this file.␊ |
| 13 | * ␊ |
| 14 | * The Original Code and all software distributed under the License are␊ |
| 15 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
| 16 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
| 17 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the␊ |
| 19 | * License for the specific language governing rights and limitations␊ |
| 20 | * under the License.␊ |
| 21 | * ␊ |
| 22 | * @APPLE_LICENSE_HEADER_END@␊ |
| 23 | *␊ |
| 24 | * Copyright 1993 NeXT, Inc. All rights reserved.␊ |
| 25 | *␊ |
| 26 | */␊ |
| 27 | ␊ |
| 28 | #include "boot.h"␊ |
| 29 | #include "vbe.h"␊ |
| 30 | #include "appleClut8.h"␊ |
| 31 | #include "gui.h"␊ |
| 32 | #include "IOHibernatePrivate.h"␊ |
| 33 | ␊ |
| 34 | /*␊ |
| 35 | * for spinning disk␊ |
| 36 | */␊ |
| 37 | static int currentIndicator = 0;␊ |
| 38 | ␊ |
| 39 | int previewTotalSectors = 0;␊ |
| 40 | int previewLoadedSectors = 0;␊ |
| 41 | uint8_t *previewSaveunder = 0;␊ |
| 42 | ␊ |
| 43 | #define VIDEO(x) (bootArgs->Video.v_ ## x)␊ |
| 44 | ␊ |
| 45 | //==========================================================================␊ |
| 46 | // getVBEVideoRam␊ |
| 47 | ␊ |
| 48 | uint32_t getVBEVideoRam()␊ |
| 49 | {␊ |
| 50 | ␉VBEInfoBlock vbeInfo;␊ |
| 51 | ␉int err, small;␊ |
| 52 | ␊ |
| 53 | ␉bzero( &vbeInfo, sizeof(vbeInfo) );␊ |
| 54 | ␉strcpy( (char*)&vbeInfo, "VBE2" );␊ |
| 55 | ␉err = getVBEInfo( &vbeInfo );␊ |
| 56 | ␉if (err != errSuccess)␊ |
| 57 | ␉␉return 0;␊ |
| 58 | ␊ |
| 59 | ␉if ( strncmp( (char *)vbeInfo.VESASignature, "VESA", 4 ) )␊ |
| 60 | ␉␉return 0;␊ |
| 61 | ␊ |
| 62 | ␉small = (vbeInfo.TotalMemory < 16);␊ |
| 63 | ␊ |
| 64 | ␉return vbeInfo.TotalMemory * 64 * 1024;␊ |
| 65 | }␊ |
| 66 | ␊ |
| 67 | //==========================================================================␊ |
| 68 | // getVBEInfoString␊ |
| 69 | ␊ |
| 70 | char *getVBEInfoString()␊ |
| 71 | {␊ |
| 72 | ␉VBEInfoBlock vbeInfo;␊ |
| 73 | ␉int err, small;␊ |
| 74 | ␉char* buff = NULL;␊ |
| 75 | ␊ |
| 76 | ␉bzero( &vbeInfo, sizeof(vbeInfo) );␊ |
| 77 | ␉strcpy( (char*)&vbeInfo, "VBE2" );␊ |
| 78 | ␉err = getVBEInfo( &vbeInfo );␊ |
| 79 | ␉if (err != errSuccess)␊ |
| 80 | ␉{␊ |
| 81 | ␉␉return 0;␊ |
| 82 | ␉}␊ |
| 83 | ␊ |
| 84 | ␉if ( strncmp( (char *)vbeInfo.VESASignature, "VESA", 4 ) )␊ |
| 85 | ␉{␊ |
| 86 | ␉␉return 0;␊ |
| 87 | ␉}␊ |
| 88 | ␊ |
| 89 | ␉buff = malloc(sizeof(char) * 256);␊ |
| 90 | ␉if (!buff)␊ |
| 91 | ␉{␊ |
| 92 | ␉␉return 0;␊ |
| 93 | ␉}␊ |
| 94 | ␊ |
| 95 | ␉small = (vbeInfo.TotalMemory < 16);␊ |
| 96 | ␊ |
| 97 | ␉snprintf(buff, 256,␊ |
| 98 | ␉␉"VESA v%d.%d %d%s (%s)\n",␊ |
| 99 | ␉␉vbeInfo.VESAVersion >> 8,␊ |
| 100 | ␉␉vbeInfo.VESAVersion & 0xf,␊ |
| 101 | ␉␉small ? (vbeInfo.TotalMemory * 64) : (vbeInfo.TotalMemory / 16),␊ |
| 102 | ␉␉small ? "KB" : "MB",␊ |
| 103 | ␉␉VBEDecodeFP(const char *, vbeInfo.OEMStringPtr) );␊ |
| 104 | ␊ |
| 105 | ␉return buff;␊ |
| 106 | }␊ |
| 107 | ␊ |
| 108 | //==========================================================================␊ |
| 109 | //␊ |
| 110 | ␊ |
| 111 | void ␊ |
| 112 | printVBEModeInfo()␊ |
| 113 | {␊ |
| 114 | ␉VBEInfoBlock vbeInfo;␊ |
| 115 | ␉unsigned short * modePtr;␊ |
| 116 | ␉VBEModeInfoBlock modeInfo;␊ |
| 117 | ␉int err;␊ |
| 118 | ␉int line;␊ |
| 119 | ␉char* vbeInfoString = NULL;␊ |
| 120 | ␊ |
| 121 | ␉bzero( &vbeInfo, sizeof(vbeInfo) );␊ |
| 122 | ␉strcpy( (char*)&vbeInfo, "VBE2" );␊ |
| 123 | ␉err = getVBEInfo( &vbeInfo );␊ |
| 124 | ␉if ( err != errSuccess ) {␊ |
| 125 | ␉␉return;␊ |
| 126 | ␉}␊ |
| 127 | ␊ |
| 128 | ␉line = 0;␊ |
| 129 | ␊ |
| 130 | ␉// Activate and clear page 1␊ |
| 131 | ␉setActiveDisplayPage(1);␊ |
| 132 | ␉clearScreenRows(0, 24);␊ |
| 133 | ␉setCursorPosition( 0, 0, 1 );␊ |
| 134 | ␊ |
| 135 | ␉vbeInfoString = getVBEInfoString();␊ |
| 136 | ␉if (!vbeInfoString) {␊ |
| 137 | ␉␉printf("Error: getVBEInfoString failed\n");␊ |
| 138 | ␉␉return;␊ |
| 139 | ␉}␊ |
| 140 | ␉printf("%s", vbeInfoString);␊ |
| 141 | ␉free(vbeInfoString);␊ |
| 142 | ␉vbeInfoString = NULL;␊ |
| 143 | ␊ |
| 144 | ␉printf("Video modes supported:\n", VBEDecodeFP(const char *, vbeInfo.OEMStringPtr));␊ |
| 145 | ␊ |
| 146 | ␉// Loop through the mode list, and find the matching mode.␊ |
| 147 | ␊ |
| 148 | ␉for ( modePtr = VBEDecodeFP( unsigned short *, vbeInfo.VideoModePtr );␊ |
| 149 | *modePtr != modeEndOfList; modePtr++ )␊ |
| 150 | ␉{␊ |
| 151 | ␉␉// Get mode information.␊ |
| 152 | ␊ |
| 153 | ␉␉bzero( &modeInfo, sizeof(modeInfo) );␊ |
| 154 | ␉␉err = getVBEModeInfo( *modePtr, &modeInfo );␊ |
| 155 | ␉␉if ( err != errSuccess )␊ |
| 156 | ␉␉{␊ |
| 157 | ␉␉␉continue;␊ |
| 158 | ␉␉}␊ |
| 159 | ␊ |
| 160 | ␉␉printf("Mode %x: %dx%dx%d mm:%d attr:%x\n",␊ |
| 161 | ␉␉␉*modePtr, modeInfo.XResolution, modeInfo.YResolution,␊ |
| 162 | ␉␉␉modeInfo.BitsPerPixel, modeInfo.MemoryModel,␊ |
| 163 | ␉␉␉modeInfo.ModeAttributes);␊ |
| 164 | ␊ |
| 165 | ␉␉if (line++ >= 20)␊ |
| 166 | ␉␉{␊ |
| 167 | ␉␉␉pause();␊ |
| 168 | ␉␉␉line = 0;␊ |
| 169 | ␉␉␉clearScreenRows(0, 24);␊ |
| 170 | ␉␉␉setCursorPosition( 0, 0, 1 );␊ |
| 171 | ␉␉}␊ |
| 172 | ␉}␊ |
| 173 | ␊ |
| 174 | ␉if (line != 0)␊ |
| 175 | ␉{␊ |
| 176 | ␉␉pause();␊ |
| 177 | ␉}␊ |
| 178 | ␊ |
| 179 | ␉setActiveDisplayPage(0);␊ |
| 180 | }␊ |
| 181 | ␊ |
| 182 | //==============================================================================␊ |
| 183 | ␊ |
| 184 | char *getVBEModeInfoString()␊ |
| 185 | {␊ |
| 186 | ␉VBEInfoBlock vbeInfo;␊ |
| 187 | ␉unsigned short * modePtr;␊ |
| 188 | ␉VBEModeInfoBlock modeInfo;␊ |
| 189 | ␉int err;␊ |
| 190 | ␊ |
| 191 | ␉bzero( &vbeInfo, sizeof(vbeInfo) );␊ |
| 192 | ␉strcpy( (char*)&vbeInfo, "VBE2" );␊ |
| 193 | ␉err = getVBEInfo( &vbeInfo );␊ |
| 194 | ␉if ( err != errSuccess )␊ |
| 195 | ␉{␊ |
| 196 | ␉␉return 0;␊ |
| 197 | ␉}␊ |
| 198 | ␊ |
| 199 | ␉char *buff=malloc(sizeof(char)*3072);␊ |
| 200 | ␉if(!buff)␊ |
| 201 | ␉{␊ |
| 202 | ␉␉return 0;␊ |
| 203 | ␉}␊ |
| 204 | ␊ |
| 205 | ␉int bufflen = 0;␊ |
| 206 | ␊ |
| 207 | ␉// Loop through the mode list, and find the matching mode.␊ |
| 208 | ␉for ( modePtr = VBEDecodeFP( unsigned short *, vbeInfo.VideoModePtr );␊ |
| 209 | ␉␉(*modePtr != modeEndOfList) && (bufflen < 3072); /* prevent buffer overrun */␊ |
| 210 | ␉␉modePtr++ )␊ |
| 211 | ␉{␊ |
| 212 | ␉␉// Get mode information.␊ |
| 213 | ␊ |
| 214 | ␉␉bzero( &modeInfo, sizeof(modeInfo) );␊ |
| 215 | ␉␉err = getVBEModeInfo( *modePtr, &modeInfo );␊ |
| 216 | ␉␉if ( err != errSuccess )␊ |
| 217 | ␉␉{␊ |
| 218 | ␉␉␉continue;␊ |
| 219 | ␉␉}␊ |
| 220 | ␊ |
| 221 | ␉␉bufflen += ␊ |
| 222 | ␉␉␉snprintf(buff+bufflen, 3072-bufflen, "Mode %x: %dx%dx%d mm:%d attr:%x\n",␊ |
| 223 | ␉␉␉*modePtr, modeInfo.XResolution, modeInfo.YResolution,␊ |
| 224 | ␉␉␉modeInfo.BitsPerPixel, modeInfo.MemoryModel,␊ |
| 225 | ␉␉␉modeInfo.ModeAttributes);␊ |
| 226 | ␉}␊ |
| 227 | ␉return buff;␊ |
| 228 | }␊ |
| 229 | ␊ |
| 230 | //==========================================================================␊ |
| 231 | // getVESAModeWithProperties␊ |
| 232 | //␊ |
| 233 | // Return the VESA mode that matches the properties specified.␊ |
| 234 | // If a mode is not found, then return the "best" available mode.␊ |
| 235 | ␊ |
| 236 | static unsigned short␊ |
| 237 | getVESAModeWithProperties( unsigned short␉width,␊ |
| 238 | unsigned short␉height,␊ |
| 239 | unsigned char␉bitsPerPixel,␊ |
| 240 | unsigned short␉attributesSet,␊ |
| 241 | unsigned short␉attributesClear,␊ |
| 242 | VBEModeInfoBlock␉*outModeInfo,␊ |
| 243 | unsigned short␉*vesaVersion␊ |
| 244 | ␉␉␉)␊ |
| 245 | {␊ |
| 246 | ␉VBEInfoBlock vbeInfo;␊ |
| 247 | ␉unsigned short * modePtr;␊ |
| 248 | ␉VBEModeInfoBlock modeInfo;␊ |
| 249 | ␉unsigned char modeBitsPerPixel;␊ |
| 250 | ␉unsigned short matchedMode = modeEndOfList;␊ |
| 251 | ␉int err;␊ |
| 252 | ␊ |
| 253 | ␉// Clear output mode info.␊ |
| 254 | ␊ |
| 255 | ␉bzero( outModeInfo, sizeof(*outModeInfo) );␊ |
| 256 | ␊ |
| 257 | ␉// Get VBE controller info containing the list of supported modes.␊ |
| 258 | ␊ |
| 259 | ␉bzero( &vbeInfo, sizeof(vbeInfo) );␊ |
| 260 | ␉strcpy( (char*)&vbeInfo, "VBE2" );␊ |
| 261 | ␉err = getVBEInfo( &vbeInfo );␊ |
| 262 | ␉if ( err != errSuccess )␊ |
| 263 | ␉{␊ |
| 264 | ␉␉return modeEndOfList;␊ |
| 265 | ␉}␊ |
| 266 | ␊ |
| 267 | ␉// Report the VESA major/minor version number.␊ |
| 268 | ␊ |
| 269 | ␉if (vesaVersion)␊ |
| 270 | ␉{␊ |
| 271 | ␉␉*vesaVersion = vbeInfo.VESAVersion;␊ |
| 272 | ␉}␊ |
| 273 | ␊ |
| 274 | ␉// Loop through the mode list, and find the matching mode.␊ |
| 275 | ␊ |
| 276 | ␉for ( modePtr = VBEDecodeFP( unsigned short *, vbeInfo.VideoModePtr );␊ |
| 277 | ␉␉*modePtr != modeEndOfList; modePtr++ )␊ |
| 278 | ␉{␊ |
| 279 | ␉␉// Get mode information.␊ |
| 280 | ␊ |
| 281 | ␉␉bzero( &modeInfo, sizeof(modeInfo) );␊ |
| 282 | ␊ |
| 283 | ␉␉err = getVBEModeInfo( *modePtr, &modeInfo );␊ |
| 284 | ␉␉if ( err != errSuccess )␊ |
| 285 | ␉␉{␊ |
| 286 | ␉␉␉continue;␊ |
| 287 | ␉␉}␊ |
| 288 | ␊ |
| 289 | #if DEBUG␊ |
| 290 | ␉␉printf("Mode %x: %dx%dx%d mm:%d attr:%x\n",␊ |
| 291 | *modePtr, modeInfo.XResolution, modeInfo.YResolution,␊ |
| 292 | modeInfo.BitsPerPixel, modeInfo.MemoryModel,␊ |
| 293 | modeInfo.ModeAttributes);␊ |
| 294 | #endif␊ |
| 295 | ␊ |
| 296 | ␉␉// Filter out unwanted modes based on mode attributes.␊ |
| 297 | ␊ |
| 298 | ␉␉if ( ( ( modeInfo.ModeAttributes & attributesSet ) != attributesSet )␊ |
| 299 | || ( ( modeInfo.ModeAttributes & attributesClear ) != 0 ) )␊ |
| 300 | ␉␉{␊ |
| 301 | ␉␉␉continue;␊ |
| 302 | ␉␉}␊ |
| 303 | ␊ |
| 304 | ␉␉// Pixel depth in bits.␊ |
| 305 | ␊ |
| 306 | ␉␉modeBitsPerPixel = modeInfo.BitsPerPixel;␊ |
| 307 | ␊ |
| 308 | ␉␉if ( ( modeBitsPerPixel == 4 ) && ( modeInfo.MemoryModel == 0 ) )␊ |
| 309 | ␉␉{␊ |
| 310 | ␉␉␉// Text mode, 16 colors.␊ |
| 311 | ␉␉}␊ |
| 312 | ␉␉else if ( ( modeBitsPerPixel == 8 ) && ( modeInfo.MemoryModel == 4 ) )␊ |
| 313 | ␉␉{␊ |
| 314 | ␉␉␉// Packed pixel, 256 colors.␊ |
| 315 | ␉␉}␊ |
| 316 | ␉␉else if ( ( ( modeBitsPerPixel == 16 ) || ( modeBitsPerPixel == 15 ) )␊ |
| 317 | ␉␉␉&& ( modeInfo.MemoryModel == 6 )␊ |
| 318 | ␉␉␉&& ( modeInfo.RedMaskSize == 5 )␊ |
| 319 | ␉␉␉&& ( modeInfo.GreenMaskSize == 5 )␊ |
| 320 | ␉␉␉&& ( modeInfo.BlueMaskSize == 5 ) )␊ |
| 321 | ␉␉{␊ |
| 322 | ␉␉␉// Direct color, 16 bpp (1:5:5:5).␊ |
| 323 | ␉␉␉modeInfo.BitsPerPixel = modeBitsPerPixel = 16;␊ |
| 324 | ␉␉}␊ |
| 325 | ␉␉else if ( ( modeBitsPerPixel == 32 )␊ |
| 326 | ␉␉␉&& ( modeInfo.MemoryModel == 6 )␊ |
| 327 | ␉␉␉&& ( modeInfo.RedMaskSize == 8 )␊ |
| 328 | ␉␉␉&& ( modeInfo.GreenMaskSize == 8 )␊ |
| 329 | ␉␉␉&& ( modeInfo.BlueMaskSize == 8 ) )␊ |
| 330 | ␉␉{␊ |
| 331 | ␉␉␉// Direct color, 32 bpp (8:8:8:8).␊ |
| 332 | ␉␉}␊ |
| 333 | ␉␉else␊ |
| 334 | ␉␉{␊ |
| 335 | ␉␉␉continue; // Not a supported mode.␊ |
| 336 | ␉␉}␊ |
| 337 | ␊ |
| 338 | ␉␉// Modes larger than the specified dimensions are skipped.␊ |
| 339 | ␊ |
| 340 | ␉␉if ( ( modeInfo.XResolution > width ) ||␊ |
| 341 | ␉␉␉( modeInfo.YResolution > height ) )␊ |
| 342 | ␉␉{␊ |
| 343 | ␉␉␉continue;␊ |
| 344 | ␉␉}␊ |
| 345 | ␊ |
| 346 | ␉␉// Perfect match, we're done looking.␊ |
| 347 | ␊ |
| 348 | ␉␉if ( ( modeInfo.XResolution == width ) &&␊ |
| 349 | ␉␉␉( modeInfo.YResolution == height ) &&␊ |
| 350 | ␉␉␉( modeBitsPerPixel == bitsPerPixel ) )␊ |
| 351 | ␉␉{␊ |
| 352 | ␉␉␉matchedMode = *modePtr;␊ |
| 353 | ␉␉␉bcopy( &modeInfo, outModeInfo, sizeof(modeInfo) );␊ |
| 354 | ␉␉␉break;␊ |
| 355 | ␉␉}␊ |
| 356 | ␊ |
| 357 | ␉␉// Save the next "best" mode in case a perfect match is not found.␊ |
| 358 | ␊ |
| 359 | ␉␉if ( modeInfo.XResolution == outModeInfo->XResolution &&␊ |
| 360 | ␉␉␉modeInfo.YResolution == outModeInfo->YResolution &&␊ |
| 361 | ␉␉␉modeBitsPerPixel <= outModeInfo->BitsPerPixel )␊ |
| 362 | ␉␉{␊ |
| 363 | ␉␉␉continue; // Saved mode has more depth.␊ |
| 364 | ␉␉}␊ |
| 365 | ␊ |
| 366 | ␉␉if ( modeInfo.XResolution < outModeInfo->XResolution ||␊ |
| 367 | ␉␉␉modeInfo.YResolution < outModeInfo->YResolution ||␊ |
| 368 | ␉␉␉modeBitsPerPixel < outModeInfo->BitsPerPixel )␊ |
| 369 | ␉␉{␊ |
| 370 | ␉␉␉continue; // Saved mode has more resolution.␊ |
| 371 | ␉␉}␊ |
| 372 | ␊ |
| 373 | ␉␉matchedMode = *modePtr;␊ |
| 374 | ␉␉bcopy( &modeInfo, outModeInfo, sizeof(modeInfo) );␊ |
| 375 | ␉}␊ |
| 376 | ␊ |
| 377 | ␉return matchedMode;␊ |
| 378 | }␊ |
| 379 | ␊ |
| 380 | //==========================================================================␊ |
| 381 | // setupPalette␊ |
| 382 | ␊ |
| 383 | static void setupPalette( VBEPalette * p, const unsigned char * g )␊ |
| 384 | {␊ |
| 385 | int i;␊ |
| 386 | unsigned char * source = (unsigned char *) g;␊ |
| 387 | ␊ |
| 388 | for (i = 0; i < 256; i++)␊ |
| 389 | {␊ |
| 390 | (*p)[i] = 0;␊ |
| 391 | (*p)[i] |= ((unsigned long)((*source++) >> 2)) << 16; // Red␊ |
| 392 | (*p)[i] |= ((unsigned long)((*source++) >> 2)) << 8; // Green␊ |
| 393 | (*p)[i] |= ((unsigned long)((*source++) >> 2)); // Blue␊ |
| 394 | }␊ |
| 395 | }␊ |
| 396 | ␊ |
| 397 | //==========================================================================␊ |
| 398 | // Simple decompressor for boot images encoded in RLE format.␊ |
| 399 | ␊ |
| 400 | char * decodeRLE( const void * rleData, int rleBlocks, int outBytes )␊ |
| 401 | {␊ |
| 402 | char *out, *cp;␊ |
| 403 | ␊ |
| 404 | struct RLEBlock {␊ |
| 405 | unsigned char count;␊ |
| 406 | unsigned char value;␊ |
| 407 | } * bp = (struct RLEBlock *) rleData;␊ |
| 408 | ␊ |
| 409 | out = cp = malloc( outBytes );␊ |
| 410 | if ( out == NULL ) return NULL;␊ |
| 411 | ␊ |
| 412 | while ( rleBlocks-- )␊ |
| 413 | {␊ |
| 414 | memset( cp, bp->value, bp->count );␊ |
| 415 | cp += bp->count;␊ |
| 416 | bp++;␊ |
| 417 | }␊ |
| 418 | ␊ |
| 419 | return out;␊ |
| 420 | }␊ |
| 421 | ␊ |
| 422 | //==========================================================================␊ |
| 423 | // setVESAGraphicsMode␊ |
| 424 | ␊ |
| 425 | static int␊ |
| 426 | setVESAGraphicsMode( unsigned short width,␊ |
| 427 | unsigned short height,␊ |
| 428 | unsigned char bitsPerPixel,␊ |
| 429 | unsigned short refreshRate )␊ |
| 430 | {␊ |
| 431 | ␉VBEModeInfoBlock minfo;␊ |
| 432 | ␉unsigned short mode;␊ |
| 433 | ␉unsigned short vesaVersion;␊ |
| 434 | ␉int err = errFuncNotSupported;␊ |
| 435 | ␊ |
| 436 | ␉do {␊ |
| 437 | ␉␉mode = getVESAModeWithProperties( width, height, bitsPerPixel,␊ |
| 438 | maColorModeBit |␊ |
| 439 | maModeIsSupportedBit |␊ |
| 440 | maGraphicsModeBit |␊ |
| 441 | maLinearFrameBufferAvailBit,␊ |
| 442 | 0,␊ |
| 443 | &minfo, &vesaVersion );␊ |
| 444 | ␉␉if ( mode == modeEndOfList )␊ |
| 445 | ␉␉{␊ |
| 446 | ␉␉␉break;␊ |
| 447 | ␉␉}␊ |
| 448 | ␊ |
| 449 | //␊ |
| 450 | // FIXME : generateCRTCTiming() causes crash.␊ |
| 451 | //␊ |
| 452 | ␊ |
| 453 | // if ( (vesaVersion >> 8) >= 3 && refreshRate >= 60 &&␊ |
| 454 | // (gBootMode & kBootModeSafe) == 0 )␊ |
| 455 | // {␊ |
| 456 | // VBECRTCInfoBlock timing;␊ |
| 457 | // ␊ |
| 458 | // // Generate CRTC timing for given refresh rate.␊ |
| 459 | // ␊ |
| 460 | // generateCRTCTiming( minfo.XResolution, minfo.YResolution,␊ |
| 461 | // refreshRate, kCRTCParamRefreshRate,␊ |
| 462 | // &timing );␊ |
| 463 | // ␊ |
| 464 | // // Find the actual pixel clock supported by the hardware.␊ |
| 465 | // ␊ |
| 466 | // getVBEPixelClock( mode, &timing.PixelClock );␊ |
| 467 | // ␊ |
| 468 | // // Re-compute CRTC timing based on actual pixel clock.␊ |
| 469 | // ␊ |
| 470 | // generateCRTCTiming( minfo.XResolution, minfo.YResolution,␊ |
| 471 | // timing.PixelClock, kCRTCParamPixelClock,␊ |
| 472 | // &timing );␊ |
| 473 | // ␊ |
| 474 | // // Set the video mode and use specified CRTC timing.␊ |
| 475 | // ␊ |
| 476 | // err = setVBEMode( mode | kLinearFrameBufferBit |␊ |
| 477 | // kCustomRefreshRateBit, &timing );␊ |
| 478 | // }␊ |
| 479 | // else␊ |
| 480 | // {␊ |
| 481 | // // Set the mode with default refresh rate.␊ |
| 482 | // ␊ |
| 483 | // err = setVBEMode( mode | kLinearFrameBufferBit, NULL );␊ |
| 484 | // }␊ |
| 485 | ␊ |
| 486 | // Set the mode with default refresh rate.␊ |
| 487 | ␊ |
| 488 | err = setVBEMode(mode | kLinearFrameBufferBit, NULL);␊ |
| 489 | ␊ |
| 490 | if (err != errSuccess)␊ |
| 491 | {␊ |
| 492 | break;␊ |
| 493 | }␊ |
| 494 | ␊ |
| 495 | // Set 8-bit color palette.␊ |
| 496 | ␊ |
| 497 | if ( minfo.BitsPerPixel == 8 )␊ |
| 498 | {␊ |
| 499 | VBEPalette palette;␊ |
| 500 | setupPalette( &palette, appleClut8 );␊ |
| 501 | if ((err = setVBEPalette(palette)) != errSuccess)␊ |
| 502 | {␊ |
| 503 | break;␊ |
| 504 | }␊ |
| 505 | }␊ |
| 506 | ␊ |
| 507 | // Is this required for buggy Video BIOS implementations?␊ |
| 508 | // On which adapter?␊ |
| 509 | ␊ |
| 510 | if ( minfo.BytesPerScanline == 0 )␊ |
| 511 | minfo.BytesPerScanline = ( minfo.XResolution *␊ |
| 512 | minfo.BitsPerPixel ) >> 3;␊ |
| 513 | ␊ |
| 514 | // Update KernBootStruct using info provided by the selected␊ |
| 515 | // VESA mode.␊ |
| 516 | ␊ |
| 517 | bootArgs->Video.v_display = GRAPHICS_MODE;␊ |
| 518 | bootArgs->Video.v_width = minfo.XResolution;␊ |
| 519 | bootArgs->Video.v_height = minfo.YResolution;␊ |
| 520 | bootArgs->Video.v_depth = minfo.BitsPerPixel;␊ |
| 521 | bootArgs->Video.v_rowBytes = minfo.BytesPerScanline;␊ |
| 522 | bootArgs->Video.v_baseAddr = VBEMakeUInt32(minfo.PhysBasePtr);␊ |
| 523 | ␊ |
| 524 | ␉} while ( 0 );␊ |
| 525 | ␊ |
| 526 | return err;␊ |
| 527 | }␊ |
| 528 | ␊ |
| 529 | //==============================================================================␊ |
| 530 | ␊ |
| 531 | int convertImage( unsigned short width, unsigned short height, const unsigned char *imageData, unsigned char **newImageData )␊ |
| 532 | {␊ |
| 533 | int cnt;␊ |
| 534 | unsigned char *img = 0;␊ |
| 535 | unsigned short *img16;␊ |
| 536 | unsigned long *img32;␊ |
| 537 | ␊ |
| 538 | switch ( VIDEO(depth) ) {␊ |
| 539 | case 16 :␊ |
| 540 | img16 = malloc(width * height * 2);␊ |
| 541 | if ( !img16 ) break;␊ |
| 542 | for (cnt = 0; cnt < (width * height); cnt++)␊ |
| 543 | img16[cnt] = lookUpCLUTIndex(imageData[cnt], 16);␊ |
| 544 | img = (unsigned char *)img16;␊ |
| 545 | break;␊ |
| 546 | ␊ |
| 547 | case 32 :␊ |
| 548 | img32 = malloc(width * height * 4);␊ |
| 549 | if ( !img32 ) break;␊ |
| 550 | for (cnt = 0; cnt < (width * height); cnt++)␊ |
| 551 | img32[cnt] = lookUpCLUTIndex(imageData[cnt], 32);␊ |
| 552 | img = (unsigned char *)img32;␊ |
| 553 | break;␊ |
| 554 | ␊ |
| 555 | default :␊ |
| 556 | img = malloc(width * height);␊ |
| 557 | bcopy(imageData, img, width * height);␊ |
| 558 | break;␊ |
| 559 | }␊ |
| 560 | *newImageData = img;␊ |
| 561 | return 0;␊ |
| 562 | }␊ |
| 563 | ␊ |
| 564 | //==============================================================================␊ |
| 565 | ␊ |
| 566 | int loadPngImage(const char *filename, uint16_t *width, uint16_t *height,␊ |
| 567 | uint8_t **imageData)␊ |
| 568 | {␊ |
| 569 | uint8_t *pngData = NULL;␊ |
| 570 | int pngFile = 0, pngSize;␊ |
| 571 | PNG_info_t *info;␊ |
| 572 | int error = 0;␊ |
| 573 | ␊ |
| 574 | pngFile = open_bvdev("bt(0,0)", filename, 0);␊ |
| 575 | if (pngFile == -1) {␊ |
| 576 | error = -1;␊ |
| 577 | goto failed;␊ |
| 578 | }␊ |
| 579 | pngSize = file_size(pngFile);␊ |
| 580 | if (!pngSize) {␊ |
| 581 | error = -1;␊ |
| 582 | goto failed;␊ |
| 583 | }␊ |
| 584 | pngData = malloc(pngSize);␊ |
| 585 | if (read(pngFile, (char *) pngData, pngSize) != pngSize) {␊ |
| 586 | error = -1;␊ |
| 587 | goto failed;␊ |
| 588 | }␊ |
| 589 | ␊ |
| 590 | PNG_error = -1;␊ |
| 591 | info = PNG_decode(pngData, pngSize);␊ |
| 592 | if (PNG_error != 0) {␊ |
| 593 | error = PNG_error;␊ |
| 594 | goto failed;␊ |
| 595 | } else if ((info->width > 0xffff) || (info->height > 0xffff)) {␊ |
| 596 | error = -1;␊ |
| 597 | goto failed;␊ |
| 598 | } else if ((info->width * info->height * 4) != info->image->size) {␊ |
| 599 | error = -1;␊ |
| 600 | goto failed;␊ |
| 601 | }␊ |
| 602 | ␉uint8_t *result = malloc(info->width*4*info->height);␊ |
| 603 | *width = info->width;␊ |
| 604 | *height = info->height;␊ |
| 605 | ␉memcpy(result, info->image->data, info->width*4*info->height);␊ |
| 606 | ␉*imageData = result;␊ |
| 607 | ␊ |
| 608 | failed:␊ |
| 609 | ␉png_alloc_free_all();␊ |
| 610 | if (pngData)␊ |
| 611 | free(pngData);␊ |
| 612 | if (pngFile != -1)␊ |
| 613 | close(pngFile);␊ |
| 614 | ␊ |
| 615 | return error;␊ |
| 616 | }␊ |
| 617 | ␊ |
| 618 | //==============================================================================␊ |
| 619 | ␊ |
| 620 | int loadEmbeddedPngImage(uint8_t *pngData, int pngSize, uint16_t *width, uint16_t *height, uint8_t **imageData) {␊ |
| 621 | PNG_info_t *info;␊ |
| 622 | int error = 0;␊ |
| 623 | ␉␊ |
| 624 | PNG_error = -1;␊ |
| 625 | info = PNG_decode(pngData, pngSize);␊ |
| 626 | ␉if (PNG_error != 0) {␊ |
| 627 | error = PNG_error;␊ |
| 628 | goto failed;␊ |
| 629 | } else if ((info->width > 0xffff) || (info->height > 0xffff)) {␊ |
| 630 | error = -1;␊ |
| 631 | goto failed;␊ |
| 632 | } else if ((info->width * info->height * 4) != info->image->size) {␊ |
| 633 | error = -1;␊ |
| 634 | goto failed;␊ |
| 635 | }␊ |
| 636 | ␉uint8_t *result = malloc(info->width*4*info->height);␊ |
| 637 | ␉*width = info->width;␊ |
| 638 | *height = info->height;␊ |
| 639 | ␉memcpy(result, info->image->data, info->width*4*info->height);␊ |
| 640 | ␉*imageData = result;␊ |
| 641 | ␊ |
| 642 | failed:␊ |
| 643 | ␉png_alloc_free_all();␊ |
| 644 | ␊ |
| 645 | return error;␊ |
| 646 | }␊ |
| 647 | ␊ |
| 648 | //==============================================================================␊ |
| 649 | ␊ |
| 650 | void blendImage(uint16_t x, uint16_t y, uint16_t width, uint16_t height,␊ |
| 651 | uint8_t *data)␊ |
| 652 | {␊ |
| 653 | uint16_t drawWidth;␊ |
| 654 | uint8_t *vram = (uint8_t *) VIDEO(baseAddr) + VIDEO(rowBytes) * y + 4 * x;␊ |
| 655 | ␊ |
| 656 | drawWidth = MIN(width, VIDEO(width) - x);␊ |
| 657 | height = MIN(height, VIDEO(height) - y);␊ |
| 658 | while (height--) {␊ |
| 659 | ␉␉switch (VIDEO (depth))␊ |
| 660 | ␉␉{␊ |
| 661 | ␉␉␉case 32: /* Optimized version*/␊ |
| 662 | ␉␉␉{␊ |
| 663 | ␉␉␉␉uint32_t s; uint32_t* d; // Source (img) and destination (bkgd) pixels␊ |
| 664 | ␉␉␉␉uint32_t a; // Alpha␊ |
| 665 | ␉␉␉␉uint32_t dstrb, dstg, srcrb, srcg, drb, dg, rb, g, tempB; // Intermediate variables␊ |
| 666 | ␉␉␉␉uint16_t pos;␊ |
| 667 | ␊ |
| 668 | ␉␉␉␉for (pos = 0; pos < drawWidth * 4; pos += 4) {␊ |
| 669 | ␉␉␉␉␉// Fast pseudo-vector alpha blending, adapted from: http://www.stereopsis.com/doubleblend.html␊ |
| 670 | ␉␉␉␉␉s = *((uint32_t*) (data + pos));␊ |
| 671 | ␉␉␉␉␉d = (uint32_t*) (vram + pos);␊ |
| 672 | ␊ |
| 673 | ␉␉␉␉␉// Flip B and R in source␊ |
| 674 | ␉␉␉␉␉// TODO: use XCHG and inline assembly to do this in a faster, saner way␊ |
| 675 | ␉␉␉␉␉tempB = (s & 0xFF0000); // save B␊ |
| 676 | ␉␉␉␉␉s = (s & 0xFF00FFFF) | ((s & 0xFF) << 16); // put R in B␊ |
| 677 | ␉␉␉␉␉s = (s & 0xFFFFFF00) | (tempB >> 16); // put B in R␊ |
| 678 | ␊ |
| 679 | ␉␉␉␉␉a = (s >> 24) + 1;␊ |
| 680 | ␊ |
| 681 | ␉␉␉␉␉dstrb = *d & 0xFF00FF; dstg = *d & 0xFF00;␊ |
| 682 | ␉␉␉␉␉srcrb = s & 0xFF00FF; srcg = s & 0xFF00;␊ |
| 683 | ␊ |
| 684 | ␉␉␉␉␉drb = srcrb - dstrb;␊ |
| 685 | ␉␉␉␉␉dg = srcg - dstg;␊ |
| 686 | ␉␉␉␉␉drb *= a; dg *= a;␊ |
| 687 | ␉␉␉␉␉drb >>= 8; dg >>= 8;␊ |
| 688 | ␊ |
| 689 | ␉␉␉␉␉rb = (drb + dstrb) & 0xFF00FF;␊ |
| 690 | ␉␉␉␉␉g = (dg + dstg) & 0xFF00;␊ |
| 691 | ␊ |
| 692 | ␉␉␉␉␉*d = rb | g;␊ |
| 693 | ␉␉␉␉}␊ |
| 694 | ␉␉␉}␊ |
| 695 | ␉␉␉break;␊ |
| 696 | ␊ |
| 697 | ␉␉␉default: /*Universal version*/␊ |
| 698 | ␉␉␉{␊ |
| 699 | ␉␉␉␉uint32_t s; ␊ |
| 700 | ␉␉␉␉uint32_t a; // Alpha␊ |
| 701 | ␉␉␉␉uint32_t dr, dg, db, sr, sg, sb; // Intermediate variables␊ |
| 702 | ␉␉␉␉uint16_t pos;␊ |
| 703 | ␉␉␉␉int bpp = (VIDEO (depth) + 7)/8;␊ |
| 704 | ␊ |
| 705 | ␉␉␉␉for (pos = 0; pos < drawWidth; pos ++) {␊ |
| 706 | ␉␉␉␉␉// Fast pseudo-vector alpha blending, adapted from: http://www.stereopsis.com/doubleblend.html␊ |
| 707 | ␉␉␉␉␉s = *((uint32_t*) (data + 4*pos));␊ |
| 708 | ␉␉␉␉␉␊ |
| 709 | ␉␉␉␉␉sb = (s & 0xFF0000) >> 16;␊ |
| 710 | ␉␉␉␉␉sg = (s & 0xFF00) >> 8;␊ |
| 711 | ␉␉␉␉␉sr = (s & 0xFF);␊ |
| 712 | ␉␉␉␉␉␊ |
| 713 | ␉␉␉␉␉a = (s >> 24) + 1;␊ |
| 714 | ␊ |
| 715 | ␉␉␉␉␉switch (VIDEO (depth))␊ |
| 716 | ␉␉␉␉␉{␊ |
| 717 | ␉␉␉␉␉␉case 24:␊ |
| 718 | ␉␉␉␉␉␉␉db = ((*(uint32_t *)(vram + bpp*pos))&0xff);␊ |
| 719 | ␉␉␉␉␉␉␉dg = ((*(uint32_t *)(vram + bpp*pos))&0xff00)>>8;␊ |
| 720 | ␉␉␉␉␉␉␉dr = ((*(uint32_t *)(vram + bpp*pos))&0xff0000)>>16;␊ |
| 721 | ␉␉␉␉␉␉␉break;␊ |
| 722 | ␉␉␉␉␉␉case 16://16-bit seems to be 15-bit␊ |
| 723 | /*␉␉␉␉␉␉␉db = ((*(uint16_t *)(vram + bpp*pos))&0x1f)<<3;␊ |
| 724 | ␉␉␉␉␉␉␉dg = ((*(uint16_t *)(vram + bpp*pos))&0x07e0)>>3;␊ |
| 725 | ␉␉␉␉␉␉␉dr = ((*(uint16_t *)(vram + bpp*pos))&0xf800)>>8;␊ |
| 726 | ␉␉␉␉␉␉␉break;␉␉␉␉␉␉␉*/␊ |
| 727 | ␉␉␉␉␉␉case 15:␊ |
| 728 | ␉␉␉␉␉␉␉db = ((*(uint16_t *)(vram + bpp*pos))&0x1f)<<3;␊ |
| 729 | ␉␉␉␉␉␉␉dg = ((*(uint16_t *)(vram + bpp*pos))&0x03e0)>>2;␊ |
| 730 | ␉␉␉␉␉␉␉dr = ((*(uint16_t *)(vram + bpp*pos))&0x7c00)>>7;␊ |
| 731 | ␉␉␉␉␉␉␉break;␊ |
| 732 | ␉␉␉␉␉␉default:␊ |
| 733 | ␉␉␉␉␉␉␉return;␊ |
| 734 | ␉␉␉␉␉}␊ |
| 735 | ␊ |
| 736 | ␉␉␉␉␉dr = (((sr - dr) * a) >> 8) + dr;␊ |
| 737 | ␉␉␉␉␉dg = (((sg - dg) * a) >> 8) + dg;␊ |
| 738 | ␉␉␉␉␉db = (((sb - db) * a) >> 8) + db;␊ |
| 739 | ␉␉␉␉␉switch (VIDEO (depth))␊ |
| 740 | ␉␉␉␉␉{␊ |
| 741 | ␉␉␉␉␉␉case 24:␊ |
| 742 | ␉␉␉␉␉␉␉*(uint32_t *)(vram + bpp*pos) = (*(uint32_t *)(vram + bpp*pos) &0xff000000)␊ |
| 743 | ␉␉␉␉␉␉␉| (db&0xff) | ((dg&0xff)<<8) | ((dr&0xff)<<16);␊ |
| 744 | ␉␉␉␉␉␉␉break;␊ |
| 745 | ␉␉␉␉␉␉case 16:␊ |
| 746 | //␉␉␉␉␉␉␉*(uint16_t *)(vram + bpp*pos) = ((db&0xf8)>>3) | ((dg&0xfc)<<3) | ((dr&0xf8)<<8);␊ |
| 747 | //␉␉␉␉␉␉␉break;␉␉␉␉␉␉␉␊ |
| 748 | ␉␉␉␉␉␉case 15:␊ |
| 749 | ␉␉␉␉␉␉␉*(uint16_t *)(vram + bpp*pos) = ((db&0xf8)>>3) | ((dg&0xf8)<<2) | ((dr&0xf8)<<7);␊ |
| 750 | ␉␉␉␉␉␉␉break;␉␉␉␉␉␉␉␉␉␉␉␉␉␉␊ |
| 751 | ␉␉␉␉␉}␊ |
| 752 | ␊ |
| 753 | ␉␉␉␉}␊ |
| 754 | ␉␉␉}␊ |
| 755 | ␉␉␉break;␊ |
| 756 | }␊ |
| 757 | vram += VIDEO(rowBytes);␊ |
| 758 | data += width * 4;␊ |
| 759 | }␊ |
| 760 | }␊ |
| 761 | ␊ |
| 762 | //==============================================================================␊ |
| 763 | ␊ |
| 764 | void drawCheckerBoard()␊ |
| 765 | {␊ |
| 766 | uint32_t *vram = (uint32_t *) VIDEO(baseAddr);␊ |
| 767 | uint16_t x, y;␊ |
| 768 | uint8_t color;␊ |
| 769 | ␊ |
| 770 | for (y = 0; y < VIDEO(height); y++, vram += VIDEO(width)) {␊ |
| 771 | for (x = 0; x < VIDEO(width); x++) {␊ |
| 772 | color = 204 + 51 * (((x / 8) % 2) == ((y / 8) % 2));␊ |
| 773 | vram[x] = (color << 16) | (color << 8) | color;␊ |
| 774 | }␊ |
| 775 | }␊ |
| 776 | }␊ |
| 777 | ␊ |
| 778 | //==========================================================================␊ |
| 779 | // LookUpCLUTIndex␊ |
| 780 | ␊ |
| 781 | unsigned long lookUpCLUTIndex( unsigned char index, unsigned char depth )␊ |
| 782 | {␊ |
| 783 | long result, red, green, blue;␊ |
| 784 | ␊ |
| 785 | red = appleClut8[index * 3 + 0];␊ |
| 786 | green = appleClut8[index * 3 + 1];␊ |
| 787 | blue = appleClut8[index * 3 + 2];␊ |
| 788 | ␊ |
| 789 | switch (depth) {␊ |
| 790 | case 16 :␊ |
| 791 | result = ((red & 0xF8) << 7) | ␊ |
| 792 | ((green & 0xF8) << 2) |␊ |
| 793 | ((blue & 0xF8) >> 3);␊ |
| 794 | result |= (result << 16);␊ |
| 795 | break;␊ |
| 796 | ␊ |
| 797 | case 32 :␊ |
| 798 | result = (red << 16) | (green << 8) | blue;␊ |
| 799 | break;␊ |
| 800 | ␊ |
| 801 | default :␊ |
| 802 | result = index | (index << 8);␊ |
| 803 | result |= (result << 16);␊ |
| 804 | break;␊ |
| 805 | }␊ |
| 806 | ␊ |
| 807 | return result;␊ |
| 808 | }␊ |
| 809 | ␊ |
| 810 | //==========================================================================␊ |
| 811 | // drawColorRectangle␊ |
| 812 | ␊ |
| 813 | void * stosl(void * dst, long val, long len)␊ |
| 814 | {␊ |
| 815 | ␉asm volatile ( "rep; stosl"␊ |
| 816 | ␉␉␉␉ : "=c" (len), "=D" (dst)␊ |
| 817 | ␉␉␉␉ : "0" (len), "1" (dst), "a" (val)␊ |
| 818 | ␉␉␉␉ : "memory" );␊ |
| 819 | ␊ |
| 820 | ␉return dst;␊ |
| 821 | }␊ |
| 822 | ␊ |
| 823 | //==============================================================================␊ |
| 824 | ␊ |
| 825 | void drawColorRectangle( unsigned short x,␊ |
| 826 | unsigned short y,␊ |
| 827 | unsigned short width,␊ |
| 828 | unsigned short height,␊ |
| 829 | unsigned char colorIndex )␊ |
| 830 | {␊ |
| 831 | ␉long pixelBytes;␊ |
| 832 | ␉long color = lookUpCLUTIndex( colorIndex, VIDEO(depth) );␊ |
| 833 | ␉char * vram;␊ |
| 834 | ␊ |
| 835 | ␉pixelBytes = VIDEO(depth) / 8;␊ |
| 836 | ␉vram = (char *) VIDEO(baseAddr) + VIDEO(rowBytes) * y + pixelBytes * x;␊ |
| 837 | ␊ |
| 838 | ␉width = MIN(width, VIDEO(width) - x);␊ |
| 839 | ␉height = MIN(height, VIDEO(height) - y);␊ |
| 840 | ␊ |
| 841 | ␉while ( height-- )␊ |
| 842 | ␉{␊ |
| 843 | ␉␉int rem = ( pixelBytes * width ) % 4;␊ |
| 844 | ␉␉if ( rem )␊ |
| 845 | ␉␉{␊ |
| 846 | ␉␉␉bcopy( &color, vram, rem );␊ |
| 847 | ␉␉}␊ |
| 848 | ␊ |
| 849 | ␉␉stosl( vram + rem, color, pixelBytes * width / 4 );␊ |
| 850 | ␉␉vram += VIDEO(rowBytes);␊ |
| 851 | ␉}␊ |
| 852 | }␊ |
| 853 | ␊ |
| 854 | //==========================================================================␊ |
| 855 | // drawDataRectangle␊ |
| 856 | ␊ |
| 857 | void drawDataRectangle( unsigned short x,␊ |
| 858 | unsigned short y,␊ |
| 859 | unsigned short width,␊ |
| 860 | unsigned short height,␊ |
| 861 | unsigned char * data )␊ |
| 862 | {␊ |
| 863 | ␉unsigned short drawWidth;␊ |
| 864 | ␉long pixelBytes = VIDEO(depth) / 8;␊ |
| 865 | ␉unsigned char * vram = (unsigned char *) VIDEO(baseAddr) + VIDEO(rowBytes) * y + pixelBytes * x;␊ |
| 866 | ␊ |
| 867 | ␉drawWidth = MIN(width, VIDEO(width) - x);␊ |
| 868 | ␉height = MIN(height, VIDEO(height) - y);␊ |
| 869 | ␉while ( height-- )␊ |
| 870 | ␉{␊ |
| 871 | ␉␉bcopy( data, vram, drawWidth * pixelBytes );␊ |
| 872 | ␉␉vram += VIDEO(rowBytes);␊ |
| 873 | ␉␉data += width * pixelBytes;␊ |
| 874 | ␉}␊ |
| 875 | }␊ |
| 876 | ␊ |
| 877 | //==============================================================================␊ |
| 878 | ␊ |
| 879 | void loadImageScale (void *input, int iw, int ih, int ip, void *output, int ow, int oh, int op, int or)␊ |
| 880 | {␊ |
| 881 | ␉int x,y, off;␊ |
| 882 | ␉int red=0x7f, green=0x7f, blue=0x7f;␊ |
| 883 | ␉for (x=0;x<ow;x++)␊ |
| 884 | ␉␉for (y=0;y<oh;y++)␊ |
| 885 | ␉␉{␊ |
| 886 | ␉␉␉off=(x*iw)/ow+((y*ih)/oh)*iw;␊ |
| 887 | ␉␉␉switch (ip)␊ |
| 888 | ␉␉␉{␊ |
| 889 | ␉␉␉␉case 16:␊ |
| 890 | ␉␉␉␉{␊ |
| 891 | ␉␉␉␉␉uint16_t val;␊ |
| 892 | ␉␉␉␉␉val=((uint16_t *)input)[off];␊ |
| 893 | ␉␉␉␉␉red=(val>>7)&0xf8;␊ |
| 894 | ␉␉␉␉␉green=(val>>2)&0xf8;␊ |
| 895 | ␉␉␉␉␉blue=(val<<3)&0xf8;␊ |
| 896 | ␉␉␉␉␉break;␊ |
| 897 | ␉␉␉␉}␊ |
| 898 | ␉␉␉␉case 32:␊ |
| 899 | ␉␉␉␉{␊ |
| 900 | ␉␉␉␉␉uint32_t val;␊ |
| 901 | ␉␉␉␉␉val=((uint32_t *)input)[off];␊ |
| 902 | ␉␉␉␉␉red=(val>>16)&0xff;␊ |
| 903 | ␉␉␉␉␉green=(val>>8)&0xff;␊ |
| 904 | ␉␉␉␉␉blue=(val)&0xff;␊ |
| 905 | ␉␉␉␉␉break;␊ |
| 906 | ␉␉␉␉}␊ |
| 907 | ␉␉␉}␊ |
| 908 | ␉␉␉char *ptr=(char *)output+x*(op/8)+y*or;␊ |
| 909 | ␉␉␉switch (op)␊ |
| 910 | ␉␉␉{␊ |
| 911 | ␉␉␉␉case 16:␊ |
| 912 | ␉␉␉␉␉*((uint16_t *)ptr) = ((red & 0xF8) << 7) | ␊ |
| 913 | ␉␉␉␉␉((green & 0xF8) << 2) |␊ |
| 914 | ␉␉␉␉␉((blue & 0xF8) >> 3);␊ |
| 915 | ␉␉␉␉␉break;␊ |
| 916 | ␉␉␉␉case 32 :␊ |
| 917 | ␉␉␉␉␉*((uint32_t *)ptr) = (red << 16) | (green << 8) | blue;␊ |
| 918 | ␉␉␉␉␉break;␊ |
| 919 | ␉␉␉}␊ |
| 920 | ␉␉}␊ |
| 921 | }␊ |
| 922 | ␊ |
| 923 | //==============================================================================␊ |
| 924 | ␊ |
| 925 | DECLARE_IOHIBERNATEPROGRESSALPHA␊ |
| 926 | ␊ |
| 927 | void drawPreview(void *src, uint8_t * saveunder)␊ |
| 928 | {␊ |
| 929 | ␉uint8_t * screen;␊ |
| 930 | ␉uint32_t rowBytes, pixelShift;␊ |
| 931 | ␉uint32_t x, y;␊ |
| 932 | ␉int32_t blob;␊ |
| 933 | ␉uint32_t alpha, in, color, result;␊ |
| 934 | ␉uint8_t * out;␊ |
| 935 | ␉void *uncomp;␊ |
| 936 | ␉int origwidth, origheight, origbpx;␊ |
| 937 | ␉uint32_t saveindex[kIOHibernateProgressCount] = { 0 };␊ |
| 938 | ␊ |
| 939 | ␉if (src && (uncomp=DecompressData(src, &origwidth, &origheight, &origbpx)))␊ |
| 940 | ␉{␊ |
| 941 | ␉␉if (!setVESAGraphicsMode(origwidth, origheight, origbpx, 0))␊ |
| 942 | ␉␉␉if (initGraphicsMode () != errSuccess)␊ |
| 943 | ␉␉␉{␊ |
| 944 | ␉␉␉␉return;␊ |
| 945 | ␉␉␉}␊ |
| 946 | ␊ |
| 947 | ␉␉screen = (uint8_t *) VIDEO (baseAddr);␊ |
| 948 | ␉␉rowBytes = VIDEO (rowBytes);␊ |
| 949 | ␉␉loadImageScale (uncomp, origwidth, origheight, origbpx, screen, VIDEO(width), VIDEO(height), VIDEO(depth), VIDEO (rowBytes));␊ |
| 950 | ␉}␊ |
| 951 | ␉else␊ |
| 952 | ␉{␊ |
| 953 | ␉␉if (initGraphicsMode () != errSuccess)␊ |
| 954 | ␉␉{␊ |
| 955 | ␉␉␉return;␊ |
| 956 | ␉␉}␊ |
| 957 | ␊ |
| 958 | ␉␉screen = (uint8_t *) VIDEO (baseAddr);␊ |
| 959 | ␉␉rowBytes = VIDEO (rowBytes);␊ |
| 960 | ␉␉// Set the screen to 75% grey.␊ |
| 961 | ␉␉drawColorRectangle(0, 0, VIDEO(width), VIDEO(height), 0x01 /* color index */);␊ |
| 962 | ␉}␊ |
| 963 | ␊ |
| 964 | ␉pixelShift = VIDEO (depth) >> 4;␊ |
| 965 | ␉if (pixelShift < 1)␊ |
| 966 | ␉{␊ |
| 967 | ␉␉return;␊ |
| 968 | ␉}␊ |
| 969 | ␊ |
| 970 | ␉screen += ((VIDEO (width) ␊ |
| 971 | ␉␉␉␉- kIOHibernateProgressCount * (kIOHibernateProgressWidth + kIOHibernateProgressSpacing)) << (pixelShift - 1))␊ |
| 972 | ␉+ (VIDEO (height) - kIOHibernateProgressOriginY - kIOHibernateProgressHeight) * rowBytes;␊ |
| 973 | ␊ |
| 974 | ␉for (y = 0; y < kIOHibernateProgressHeight; y++)␊ |
| 975 | ␉{␊ |
| 976 | ␉␉out = screen + y * rowBytes;␊ |
| 977 | ␉␉for (blob = 0; blob < kIOHibernateProgressCount; blob++)␊ |
| 978 | ␉␉{␊ |
| 979 | ␉␉␉color = blob ? kIOHibernateProgressDarkGray : kIOHibernateProgressMidGray;␊ |
| 980 | ␉␉␉for (x = 0; x < kIOHibernateProgressWidth; x++)␊ |
| 981 | ␉␉␉{␊ |
| 982 | ␉␉␉␉alpha = gIOHibernateProgressAlpha[y][x];␊ |
| 983 | ␉␉␉␉result = color;␊ |
| 984 | ␉␉␉␉if (alpha)␊ |
| 985 | ␉␉␉␉{␊ |
| 986 | ␉␉␉␉␉if (0xff != alpha)␊ |
| 987 | ␉␉␉␉␉{␊ |
| 988 | ␉␉␉␉␉␉if (1 == pixelShift)␊ |
| 989 | ␉␉␉␉␉␉{␊ |
| 990 | ␉␉␉␉␉␉␉in = *((uint16_t *)out) & 0x1f;␉// 16␊ |
| 991 | ␉␉␉␉␉␉␉in = (in << 3) | (in >> 2);␊ |
| 992 | ␉␉␉␉␉␉}␊ |
| 993 | ␉␉␉␉␉␉else␊ |
| 994 | ␉␉␉␉␉␉{␊ |
| 995 | ␉␉␉␉␉␉␉in = *((uint32_t *)out) & 0xff;␉// 32␊ |
| 996 | ␉␉␉␉␉␉}␊ |
| 997 | ␊ |
| 998 | ␉␉␉␉␉␉saveunder[blob * kIOHibernateProgressSaveUnderSize + saveindex[blob]++] = in;␊ |
| 999 | ␉␉␉␉␉␉result = ((255 - alpha) * in + alpha * result + 0xff) >> 8;␊ |
| 1000 | ␉␉␉␉␉}␊ |
| 1001 | ␉␉␉␉␉if (1 == pixelShift)␊ |
| 1002 | ␉␉␉␉␉{␊ |
| 1003 | ␉␉␉␉␉␉result >>= 3;␊ |
| 1004 | ␉␉␉␉␉␉*((uint16_t *)out) = (result << 10) | (result << 5) | result;␉// 16␊ |
| 1005 | ␉␉␉␉␉}␊ |
| 1006 | ␉␉␉␉␉else␊ |
| 1007 | ␉␉␉␉␉{␊ |
| 1008 | ␉␉␉␉␉␉*((uint32_t *)out) = (result << 16) | (result << 8) | result;␉// 32␊ |
| 1009 | ␉␉␉␉␉}␊ |
| 1010 | ␊ |
| 1011 | ␉␉␉␉}␊ |
| 1012 | ␉␉␉␉out += (1 << pixelShift);␊ |
| 1013 | ␉␉␉}␊ |
| 1014 | ␉␉␉out += (kIOHibernateProgressSpacing << pixelShift);␊ |
| 1015 | ␉␉}␊ |
| 1016 | ␉}␊ |
| 1017 | }␊ |
| 1018 | ␊ |
| 1019 | //==============================================================================␊ |
| 1020 | ␊ |
| 1021 | void updateProgressBar(uint8_t * saveunder, int32_t firstBlob, int32_t select)␊ |
| 1022 | {␊ |
| 1023 | ␉uint8_t * screen;␊ |
| 1024 | ␉uint32_t rowBytes, pixelShift;␊ |
| 1025 | ␉uint32_t x, y;␊ |
| 1026 | ␉int32_t blob, lastBlob;␊ |
| 1027 | ␉uint32_t alpha, in, color, result;␊ |
| 1028 | ␉uint8_t * out;␊ |
| 1029 | ␉uint32_t saveindex[kIOHibernateProgressCount] = { 0 };␊ |
| 1030 | ␊ |
| 1031 | ␉pixelShift = VIDEO(depth) >> 4;␊ |
| 1032 | ␉if (pixelShift < 1) return;␊ |
| 1033 | ␉screen = (uint8_t *) VIDEO (baseAddr);␊ |
| 1034 | ␉rowBytes = VIDEO (rowBytes);␊ |
| 1035 | ␊ |
| 1036 | ␉screen += ((VIDEO (width) ␊ |
| 1037 | ␉␉␉␉- kIOHibernateProgressCount * (kIOHibernateProgressWidth + kIOHibernateProgressSpacing)) << (pixelShift - 1))␊ |
| 1038 | ␉+ (VIDEO (height) - kIOHibernateProgressOriginY - kIOHibernateProgressHeight) * rowBytes;␊ |
| 1039 | ␊ |
| 1040 | ␉lastBlob = (select < kIOHibernateProgressCount) ? select : (kIOHibernateProgressCount - 1);␊ |
| 1041 | ␊ |
| 1042 | ␉screen += (firstBlob * (kIOHibernateProgressWidth + kIOHibernateProgressSpacing)) << pixelShift;␊ |
| 1043 | ␊ |
| 1044 | ␉for (y = 0; y < kIOHibernateProgressHeight; y++)␊ |
| 1045 | ␉{␊ |
| 1046 | ␉␉out = screen + y * rowBytes;␊ |
| 1047 | ␉␉for (blob = firstBlob; blob <= lastBlob; blob++)␊ |
| 1048 | ␉␉{␊ |
| 1049 | ␉␉␉color = (blob < select) ? kIOHibernateProgressLightGray : kIOHibernateProgressMidGray;␊ |
| 1050 | ␉␉␉for (x = 0; x < kIOHibernateProgressWidth; x++)␊ |
| 1051 | ␉␉␉{␊ |
| 1052 | ␉␉␉␉alpha = gIOHibernateProgressAlpha[y][x];␊ |
| 1053 | ␉␉␉␉result = color;␊ |
| 1054 | ␉␉␉␉if (alpha)␊ |
| 1055 | ␉␉␉␉{␊ |
| 1056 | ␉␉␉␉␉if (0xff != alpha)␊ |
| 1057 | ␉␉␉␉␉{␊ |
| 1058 | ␉␉␉␉␉␉in = saveunder[blob * kIOHibernateProgressSaveUnderSize + saveindex[blob]++];␊ |
| 1059 | ␉␉␉␉␉␉result = ((255 - alpha) * in + alpha * result + 0xff) / 255;␊ |
| 1060 | ␉␉␉␉␉}␊ |
| 1061 | ␊ |
| 1062 | ␉␉␉␉␉if (1 == pixelShift)␊ |
| 1063 | ␉␉␉␉␉{␊ |
| 1064 | ␉␉␉␉␉␉result >>= 3;␊ |
| 1065 | ␉␉␉␉␉␉*((uint16_t *)out) = (result << 10) | (result << 5) | result;␉// 16␊ |
| 1066 | ␉␉␉␉␉}␊ |
| 1067 | ␉␉␉␉␉else␊ |
| 1068 | ␉␉␉␉␉{␊ |
| 1069 | ␉␉␉␉␉␉*((uint32_t *)out) = (result << 16) | (result << 8) | result;␉// 32␊ |
| 1070 | ␉␉␉␉␉}␊ |
| 1071 | ␉␉␉␉}␊ |
| 1072 | ␉␉␉␉out += (1 << pixelShift);␊ |
| 1073 | ␉␉␉}␊ |
| 1074 | ␉␉␉out += (kIOHibernateProgressSpacing << pixelShift);␊ |
| 1075 | ␉␉}␊ |
| 1076 | ␉}␊ |
| 1077 | }␊ |
| 1078 | ␊ |
| 1079 | //==========================================================================␊ |
| 1080 | // setVESATextMode␊ |
| 1081 | ␊ |
| 1082 | static int setVESATextMode( unsigned short cols, unsigned short rows, unsigned char bitsPerPixel )␊ |
| 1083 | {␊ |
| 1084 | ␉VBEModeInfoBlock minfo;␊ |
| 1085 | ␉unsigned short mode = modeEndOfList;␊ |
| 1086 | ␊ |
| 1087 | ␉if ( (cols != 80) || (rows != 25) ) // not 80x25 mode␊ |
| 1088 | ␉{␊ |
| 1089 | ␉␉mode = getVESAModeWithProperties( cols, rows, bitsPerPixel,␊ |
| 1090 | maColorModeBit |␊ |
| 1091 | maModeIsSupportedBit,␊ |
| 1092 | maGraphicsModeBit,␊ |
| 1093 | &minfo, NULL );␊ |
| 1094 | ␉}␊ |
| 1095 | ␊ |
| 1096 | ␉if ( ( mode == modeEndOfList ) || ( setVBEMode(mode, NULL) != errSuccess ) )␊ |
| 1097 | ␉{␊ |
| 1098 | ␉␉video_mode( 2 ); // VGA BIOS, 80x25 text mode.␊ |
| 1099 | ␉␉minfo.XResolution = 80;␊ |
| 1100 | ␉␉minfo.YResolution = 25;␊ |
| 1101 | ␉}␊ |
| 1102 | ␊ |
| 1103 | ␉// Update KernBootStruct using info provided by the selected␊ |
| 1104 | ␉// VESA mode.␊ |
| 1105 | ␊ |
| 1106 | ␉bootArgs->Video.v_display = VGA_TEXT_MODE;␊ |
| 1107 | ␉bootArgs->Video.v_baseAddr = 0xb8000;␊ |
| 1108 | ␉bootArgs->Video.v_width = minfo.XResolution;␊ |
| 1109 | ␉bootArgs->Video.v_height = minfo.YResolution;␊ |
| 1110 | ␉bootArgs->Video.v_depth = 8;␊ |
| 1111 | ␉bootArgs->Video.v_rowBytes = 0x8000;␊ |
| 1112 | ␊ |
| 1113 | ␉return errSuccess; // always return success␊ |
| 1114 | }␊ |
| 1115 | ␊ |
| 1116 | //==========================================================================␊ |
| 1117 | // getNumberArrayFromProperty␊ |
| 1118 | ␊ |
| 1119 | static int getNumberArrayFromProperty( const char * propKey,␊ |
| 1120 | unsigned long numbers[],␊ |
| 1121 | unsigned long maxArrayCount )␊ |
| 1122 | {␊ |
| 1123 | ␉char␉␉*propStr;␊ |
| 1124 | ␉unsigned long␉count = 0;␊ |
| 1125 | ␊ |
| 1126 | ␉propStr = newStringForKey((char *)propKey , &bootInfo->chameleonConfig);␊ |
| 1127 | ␊ |
| 1128 | ␉if (propStr)␊ |
| 1129 | ␉{␊ |
| 1130 | ␉␉char *delimiter = propStr;␊ |
| 1131 | ␉␉char *p = propStr;␊ |
| 1132 | ␊ |
| 1133 | ␉␉while ((count < maxArrayCount) && (*p != '\0'))␊ |
| 1134 | ␉␉{␊ |
| 1135 | ␉␉␉unsigned long val = strtoul(p, &delimiter, 10);␊ |
| 1136 | ␉␉␉if (p != delimiter)␊ |
| 1137 | ␉␉␉{␊ |
| 1138 | ␉␉␉␉numbers[count++] = val;␊ |
| 1139 | ␉␉␉␉p = delimiter;␊ |
| 1140 | ␉␉␉}␊ |
| 1141 | ␉␉␉while ((*p != '\0') && !isdigit(*p))␊ |
| 1142 | ␉␉␉␉p++;␊ |
| 1143 | ␉␉}␊ |
| 1144 | ␊ |
| 1145 | ␉␉free(propStr);␊ |
| 1146 | ␉}␊ |
| 1147 | ␊ |
| 1148 | ␉return count;␊ |
| 1149 | }␊ |
| 1150 | ␊ |
| 1151 | //==============================================================================␊ |
| 1152 | ␊ |
| 1153 | int initGraphicsMode ()␊ |
| 1154 | {␊ |
| 1155 | ␉unsigned long params[4];␊ |
| 1156 | ␉int count;␊ |
| 1157 | ␊ |
| 1158 | ␉params[3] = 0;␊ |
| 1159 | ␉count = getNumberArrayFromProperty( kGraphicsModeKey, params, 4 );␊ |
| 1160 | ␊ |
| 1161 | ␉// Try to find a resolution if "Graphics Mode" setting is not available.␊ |
| 1162 | ␉if ( count < 3 )␊ |
| 1163 | ␉{␊ |
| 1164 | ␉␉// Use the default resolution if we don't have an initialized GUI.␊ |
| 1165 | ␉␉if (gui.screen.width == 0 || gui.screen.height == 0)␊ |
| 1166 | ␉␉{␊ |
| 1167 | ␉␉␉gui.screen.width = DEFAULT_SCREEN_WIDTH;␊ |
| 1168 | ␉␉␉gui.screen.height = DEFAULT_SCREEN_HEIGHT;␊ |
| 1169 | ␉␉}␊ |
| 1170 | ␊ |
| 1171 | ␉␉params[0] = gui.screen.width;␊ |
| 1172 | ␉␉params[1] = gui.screen.height;␊ |
| 1173 | ␉␉params[2] = 32;␊ |
| 1174 | ␉}␊ |
| 1175 | ␊ |
| 1176 | ␉// Map from pixel format to bits per pixel.␊ |
| 1177 | ␊ |
| 1178 | ␉if ( params[2] == 256 )␊ |
| 1179 | ␉␉params[2] = 8;␊ |
| 1180 | ␊ |
| 1181 | ␉if ( params[2] == 555 )␊ |
| 1182 | ␉␉params[2] = 16;␊ |
| 1183 | ␊ |
| 1184 | ␉if ( params[2] == 888 )␊ |
| 1185 | ␉␉params[2] = 32;␊ |
| 1186 | ␊ |
| 1187 | ␉return setVESAGraphicsMode( params[0], params[1], params[2], params[3] );␊ |
| 1188 | }␊ |
| 1189 | ␊ |
| 1190 | //==========================================================================␊ |
| 1191 | // setVideoMode␊ |
| 1192 | //␊ |
| 1193 | // Set the video mode to VGA_TEXT_MODE or GRAPHICS_MODE.␊ |
| 1194 | ␊ |
| 1195 | void setVideoMode( int mode, int drawgraphics)␊ |
| 1196 | {␊ |
| 1197 | ␉unsigned long params[4];␊ |
| 1198 | ␉int count;␊ |
| 1199 | ␉int err = errSuccess;␊ |
| 1200 | ␊ |
| 1201 | ␉if ( mode == GRAPHICS_MODE )␊ |
| 1202 | ␉{␊ |
| 1203 | ␉␉if ( (err = initGraphicsMode()) == errSuccess )␊ |
| 1204 | ␉␉{␊ |
| 1205 | ␉␉␉if (gVerboseMode)␊ |
| 1206 | ␉␉␉{␊ |
| 1207 | ␉␉␉␉// Tell the kernel to use text mode on a linear frame buffer display␊ |
| 1208 | ␉␉␉␉bootArgs->Video.v_display = FB_TEXT_MODE;␊ |
| 1209 | ␉␉␉}␊ |
| 1210 | ␉␉␉else␊ |
| 1211 | ␉␉␉{␊ |
| 1212 | ␉␉␉␉bootArgs->Video.v_display = GRAPHICS_MODE;␊ |
| 1213 | ␉␉␉}␊ |
| 1214 | ␉␉}␊ |
| 1215 | ␉}␊ |
| 1216 | ␊ |
| 1217 | ␉if ( (mode == VGA_TEXT_MODE) || (err != errSuccess) )␊ |
| 1218 | ␉{␊ |
| 1219 | ␉␉count = getNumberArrayFromProperty(kTextModeKey, params, 2);␊ |
| 1220 | ␉␉if ( count < 2 )␊ |
| 1221 | ␉␉{␊ |
| 1222 | ␉␉␉params[0] = 80; // Default text mode is 80x25.␊ |
| 1223 | ␉␉␉params[1] = 25;␊ |
| 1224 | ␉␉}␊ |
| 1225 | ␊ |
| 1226 | ␉␉setVESATextMode(params[0], params[1], 4);␊ |
| 1227 | ␉␉bootArgs->Video.v_display = VGA_TEXT_MODE;␊ |
| 1228 | ␉}␊ |
| 1229 | ␊ |
| 1230 | ␉currentIndicator = 0;␊ |
| 1231 | }␊ |
| 1232 | ␊ |
| 1233 | //==============================================================================␊ |
| 1234 | void getGraphicModeParams(unsigned long params[])␊ |
| 1235 | {␊ |
| 1236 | ␉params[3] = 0;␊ |
| 1237 | ␊ |
| 1238 | ␉VBEModeInfoBlock minfo;␊ |
| 1239 | ␊ |
| 1240 | ␉unsigned short vesaVersion;␊ |
| 1241 | ␉unsigned short mode = modeEndOfList;␊ |
| 1242 | ␊ |
| 1243 | ␉getNumberArrayFromProperty(kGraphicsModeKey, params, 4);␊ |
| 1244 | ␊ |
| 1245 | ␉mode = getVESAModeWithProperties(params[0], params[1], params[2],␊ |
| 1246 | ␉␉␉␉␉␉␉␉␉ maColorModeBit |␊ |
| 1247 | ␉␉␉␉␉␉␉␉␉ maModeIsSupportedBit |␊ |
| 1248 | ␉␉␉␉␉␉␉␉␉ maGraphicsModeBit |␊ |
| 1249 | ␉␉␉␉␉␉␉␉␉ maLinearFrameBufferAvailBit,␊ |
| 1250 | ␉␉␉␉␉␉␉␉␉ 0,␊ |
| 1251 | ␉␉␉␉␉␉␉␉␉ &minfo, &vesaVersion);␊ |
| 1252 | ␊ |
| 1253 | ␉params[0] = minfo.XResolution;␊ |
| 1254 | ␉params[1] = minfo.YResolution;␊ |
| 1255 | ␉params[2] = 32;␊ |
| 1256 | }␊ |
| 1257 | ␉␊ |
| 1258 | //==========================================================================␊ |
| 1259 | // Return the current video mode, VGA_TEXT_MODE or GRAPHICS_MODE.␊ |
| 1260 | ␊ |
| 1261 | int getVideoMode(void)␊ |
| 1262 | {␊ |
| 1263 | return bootArgs->Video.v_display;␊ |
| 1264 | }␊ |
| 1265 | ␊ |
| 1266 | //==========================================================================␊ |
| 1267 | // Display and clear the activity indicator.␊ |
| 1268 | ␊ |
| 1269 | // BASIC Indicator␊ |
| 1270 | static char indicator[] = {'-', '\\', '|', '/', '\0'};␊ |
| 1271 | ␊ |
| 1272 | // To prevent a ridiculously fast-spinning indicator,␊ |
| 1273 | // ensure a minimum of 1/9 sec between animation frames.␊ |
| 1274 | #define MIN_TICKS 2␊ |
| 1275 | ␊ |
| 1276 | //==============================================================================␊ |
| 1277 | ␊ |
| 1278 | void spinActivityIndicator(int sectors)␊ |
| 1279 | {␊ |
| 1280 | static unsigned long lastTickTime = 0, currentTickTime;␊ |
| 1281 | ␊ |
| 1282 | ␉if (previewTotalSectors && previewSaveunder)␊ |
| 1283 | ␉{␊ |
| 1284 | ␉␉int blob, lastBlob;␊ |
| 1285 | ␊ |
| 1286 | ␉␉lastBlob = (previewLoadedSectors * kIOHibernateProgressCount) / previewTotalSectors;␊ |
| 1287 | ␉␉previewLoadedSectors+=sectors;␊ |
| 1288 | ␉␉blob = (previewLoadedSectors * kIOHibernateProgressCount) / previewTotalSectors;␊ |
| 1289 | ␉␉␊ |
| 1290 | ␉␉if (blob!=lastBlob)␊ |
| 1291 | ␉␉{␊ |
| 1292 | ␉␉␉updateProgressBar (previewSaveunder, lastBlob, blob);␊ |
| 1293 | ␉␉}␊ |
| 1294 | ␉␉return;␊ |
| 1295 | ␉}␊ |
| 1296 | ␊ |
| 1297 | ␉currentTickTime = time18(); // late binding␊ |
| 1298 | ␉if (currentTickTime < lastTickTime + MIN_TICKS)␊ |
| 1299 | ␉{␊ |
| 1300 | ␉␉return;␊ |
| 1301 | ␉}␊ |
| 1302 | ␉else␊ |
| 1303 | ␉{␊ |
| 1304 | ␉␉lastTickTime = currentTickTime;␊ |
| 1305 | ␉}␊ |
| 1306 | ␊ |
| 1307 | ␉if (getVideoMode() == VGA_TEXT_MODE)␊ |
| 1308 | ␉{␊ |
| 1309 | ␉␉if (currentIndicator >= sizeof(indicator))␊ |
| 1310 | ␉␉{␊ |
| 1311 | ␉␉␉currentIndicator = 0;␊ |
| 1312 | ␉␉}␊ |
| 1313 | ␉␉putchar(indicator[currentIndicator++]);␊ |
| 1314 | ␉␉putchar('\b');␊ |
| 1315 | ␉}␊ |
| 1316 | }␊ |
| 1317 | ␊ |
| 1318 | //==============================================================================␊ |
| 1319 | ␊ |
| 1320 | void clearActivityIndicator( void )␊ |
| 1321 | {␊ |
| 1322 | ␉if ( getVideoMode() == VGA_TEXT_MODE )␊ |
| 1323 | ␉{␊ |
| 1324 | ␉␉putchar(' ');␊ |
| 1325 | ␉␉putchar('\b');␊ |
| 1326 | ␉}␊ |
| 1327 | }␊ |
| 1328 | ␊ |
| 1329 | //==============================================================================␊ |
| 1330 | |
