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