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 "graphics.h"␊ |
31 | #include "vbe.h"␊ |
32 | #include "appleClut8.h"␊ |
33 | #include "bootstruct.h"␊ |
34 | #include "modules.h"␊ |
35 | ␊ |
36 | /*␊ |
37 | * for spinning disk␊ |
38 | */␊ |
39 | #if TEXT_SPINNER␊ |
40 | static int currentIndicator = 0;␊ |
41 | #endif␊ |
42 | ␊ |
43 | int previewTotalSectors = 0;␊ |
44 | int previewLoadedSectors = 0;␊ |
45 | uint8_t *previewSaveunder = 0;␊ |
46 | ␊ |
47 | #define VIDEO(x) (bootArgs->Video.v_ ## x)␊ |
48 | ␊ |
49 | #define MIN(x, y) ((x) < (y) ? (x) : (y))␊ |
50 | ␊ |
51 | #ifndef OPTION_ROM␊ |
52 | int␊ |
53 | convertImage( unsigned short width,␊ |
54 | ␉␉␉ unsigned short height,␊ |
55 | ␉␉␉ const unsigned char *imageData,␊ |
56 | ␉␉␉ unsigned char **newImageData )␊ |
57 | {␊ |
58 | int cnt;␊ |
59 | unsigned char *img = 0;␊ |
60 | unsigned short *img16;␊ |
61 | unsigned long *img32;␊ |
62 | ␉␊ |
63 | switch ( VIDEO(depth) ) {␊ |
64 | ␉␉case 16 :␊ |
65 | ␉␉␉img16 = malloc(width * height * 2);␊ |
66 | ␉␉␉if ( !img16 ) break;␊ |
67 | ␉␉␉for (cnt = 0; cnt < (width * height); cnt++)␊ |
68 | ␉␉␉␉img16[cnt] = lookUpCLUTIndex(imageData[cnt], 16);␊ |
69 | ␉␉␉img = (unsigned char *)img16;␊ |
70 | ␉␉␉break;␊ |
71 | ␉␉␉␊ |
72 | ␉␉case 32 :␊ |
73 | ␉␉␉img32 = malloc(width * height * 4);␊ |
74 | ␉␉␉if ( !img32 ) break;␊ |
75 | ␉␉␉for (cnt = 0; cnt < (width * height); cnt++)␊ |
76 | ␉␉␉␉img32[cnt] = lookUpCLUTIndex(imageData[cnt], 32);␊ |
77 | ␉␉␉img = (unsigned char *)img32;␊ |
78 | ␉␉␉break;␊ |
79 | ␉␉␉␊ |
80 | ␉␉default :␊ |
81 | ␉␉␉img = malloc(width * height);␊ |
82 | ␉␉␉bcopy(imageData, img, width * height);␊ |
83 | ␉␉␉break;␊ |
84 | }␊ |
85 | *newImageData = img;␊ |
86 | return 0;␊ |
87 | }␊ |
88 | ␊ |
89 | //==========================================================================␊ |
90 | // drawDataRectangle␊ |
91 | ␊ |
92 | void drawDataRectangle( unsigned short x,␊ |
93 | ␉␉␉␉␉ unsigned short y,␊ |
94 | ␉␉␉␉␉ unsigned short width,␊ |
95 | ␉␉␉␉␉ unsigned short height,␊ |
96 | ␉␉␉␉␉ unsigned char * data )␊ |
97 | {␊ |
98 | unsigned short drawWidth;␊ |
99 | long pixelBytes = VIDEO(depth) / 8;␊ |
100 | unsigned char * vram = (unsigned char *) VIDEO(baseAddr) +␊ |
101 | ␉VIDEO(rowBytes) * y + pixelBytes * x;␊ |
102 | ␉␊ |
103 | drawWidth = MIN(width, VIDEO(width) - x);␊ |
104 | height = MIN(height, VIDEO(height) - y);␊ |
105 | while ( height-- ) {␊ |
106 | bcopy( data, vram, drawWidth * pixelBytes );␊ |
107 | vram += VIDEO(rowBytes);␊ |
108 | data += width * pixelBytes;␊ |
109 | }␊ |
110 | }␊ |
111 | #endif␊ |
112 | ␊ |
113 | //==========================================================================␊ |
114 | // getVESAModeWithProperties␊ |
115 | //␊ |
116 | // Return the VESA mode that matches the properties specified.␊ |
117 | // If a mode is not found, then return the "best" available mode.␊ |
118 | ␊ |
119 | unsigned short␊ |
120 | getVESAModeWithProperties( unsigned short width,␊ |
121 | ␉␉␉␉␉␉ unsigned short height,␊ |
122 | ␉␉␉␉␉␉ unsigned char bitsPerPixel,␊ |
123 | ␉␉␉␉␉␉ unsigned short attributesSet,␊ |
124 | ␉␉␉␉␉␉ unsigned short attributesClear,␊ |
125 | ␉␉␉␉␉␉ VBEModeInfoBlock * outModeInfo,␊ |
126 | ␉␉␉␉␉␉ unsigned short * vesaVersion )␊ |
127 | {␊ |
128 | VBEInfoBlock vbeInfo;␊ |
129 | unsigned short * modePtr;␊ |
130 | VBEModeInfoBlock modeInfo;␊ |
131 | unsigned char modeBitsPerPixel;␊ |
132 | unsigned short matchedMode = modeEndOfList;␊ |
133 | int err;␊ |
134 | ␉␊ |
135 | // Clear output mode info.␊ |
136 | ␉␊ |
137 | bzero( outModeInfo, sizeof(*outModeInfo) );␊ |
138 | ␉␊ |
139 | // Get VBE controller info containing the list of supported modes.␊ |
140 | ␉␊ |
141 | bzero( &vbeInfo, sizeof(vbeInfo) );␊ |
142 | strcpy( (char*)&vbeInfo, "VBE2" );␊ |
143 | err = getVBEInfo( &vbeInfo );␊ |
144 | if ( err != errSuccess )␊ |
145 | {␊ |
146 | return modeEndOfList;␊ |
147 | }␊ |
148 | ␉␊ |
149 | // Report the VESA major/minor version number.␊ |
150 | ␉␊ |
151 | if (vesaVersion) *vesaVersion = vbeInfo.VESAVersion;␊ |
152 | ␉␊ |
153 | // Loop through the mode list, and find the matching mode.␊ |
154 | ␉␊ |
155 | for ( modePtr = VBEDecodeFP( unsigned short *, vbeInfo.VideoModePtr );␊ |
156 | ␉␉ *modePtr != modeEndOfList; modePtr++ )␊ |
157 | {␊ |
158 | // Get mode information.␊ |
159 | ␉␉␊ |
160 | bzero( &modeInfo, sizeof(modeInfo) );␊ |
161 | err = getVBEModeInfo( *modePtr, &modeInfo );␊ |
162 | if ( err != errSuccess )␊ |
163 | {␊ |
164 | continue;␊ |
165 | }␊ |
166 | ␉␉␊ |
167 | #if DEBUG␊ |
168 | printf("Mode %x: %dx%dx%d mm:%d attr:%x\n",␊ |
169 | *modePtr, modeInfo.XResolution, modeInfo.YResolution,␊ |
170 | modeInfo.BitsPerPixel, modeInfo.MemoryModel,␊ |
171 | modeInfo.ModeAttributes);␊ |
172 | #endif␊ |
173 | ␉␉␊ |
174 | // Filter out unwanted modes based on mode attributes.␊ |
175 | ␉␉␊ |
176 | if ( ( ( modeInfo.ModeAttributes & attributesSet ) != attributesSet )␊ |
177 | ␉␉␉|| ( ( modeInfo.ModeAttributes & attributesClear ) != 0 ) )␊ |
178 | {␊ |
179 | continue;␊ |
180 | }␊ |
181 | ␉␉␊ |
182 | // Pixel depth in bits.␊ |
183 | ␉␉␊ |
184 | modeBitsPerPixel = modeInfo.BitsPerPixel;␊ |
185 | ␉␉␊ |
186 | if ( ( modeBitsPerPixel == 4 ) && ( modeInfo.MemoryModel == 0 ) )␊ |
187 | {␊ |
188 | // Text mode, 16 colors.␊ |
189 | }␊ |
190 | else if ( ( modeBitsPerPixel == 8 ) && ( modeInfo.MemoryModel == 4 ) )␊ |
191 | {␊ |
192 | // Packed pixel, 256 colors.␊ |
193 | }␊ |
194 | else if ( ( ( modeBitsPerPixel == 16 ) || ( modeBitsPerPixel == 15 ) )␊ |
195 | ␉␉␉␉ && ( modeInfo.MemoryModel == 6 )␊ |
196 | ␉␉␉␉ && ( modeInfo.RedMaskSize == 5 )␊ |
197 | ␉␉␉␉ && ( modeInfo.GreenMaskSize == 5 )␊ |
198 | ␉␉␉␉ && ( modeInfo.BlueMaskSize == 5 ) )␊ |
199 | {␊ |
200 | // Direct color, 16 bpp (1:5:5:5).␊ |
201 | modeInfo.BitsPerPixel = modeBitsPerPixel = 16;␊ |
202 | }␊ |
203 | else if ( ( modeBitsPerPixel == 32 )␊ |
204 | ␉␉␉␉ && ( modeInfo.MemoryModel == 6 )␊ |
205 | ␉␉␉␉ && ( modeInfo.RedMaskSize == 8 )␊ |
206 | ␉␉␉␉ && ( modeInfo.GreenMaskSize == 8 )␊ |
207 | ␉␉␉␉ && ( modeInfo.BlueMaskSize == 8 ) )␊ |
208 | {␊ |
209 | // Direct color, 32 bpp (8:8:8:8).␊ |
210 | }␊ |
211 | else␊ |
212 | {␊ |
213 | continue; // Not a supported mode.␊ |
214 | }␊ |
215 | ␉␉␊ |
216 | // Modes larger than the specified dimensions are skipped.␊ |
217 | ␉␉␊ |
218 | if ( ( modeInfo.XResolution > width ) ||␊ |
219 | ␉␉␉( modeInfo.YResolution > height ) )␊ |
220 | {␊ |
221 | continue;␊ |
222 | }␊ |
223 | ␉␉␊ |
224 | // Perfect match, we're done looking.␊ |
225 | ␉␉␊ |
226 | if ( ( modeInfo.XResolution == width ) &&␊ |
227 | ␉␉␉( modeInfo.YResolution == height ) &&␊ |
228 | ␉␉␉( modeBitsPerPixel == bitsPerPixel ) )␊ |
229 | {␊ |
230 | matchedMode = *modePtr;␊ |
231 | bcopy( &modeInfo, outModeInfo, sizeof(modeInfo) );␊ |
232 | break;␊ |
233 | }␊ |
234 | ␉␉␊ |
235 | // Save the next "best" mode in case a perfect match is not found.␊ |
236 | ␉␉␊ |
237 | if ( modeInfo.XResolution == outModeInfo->XResolution &&␊ |
238 | ␉␉␉modeInfo.YResolution == outModeInfo->YResolution &&␊ |
239 | ␉␉␉modeBitsPerPixel <= outModeInfo->BitsPerPixel )␊ |
240 | {␊ |
241 | continue; // Saved mode has more depth.␊ |
242 | }␊ |
243 | if ( modeInfo.XResolution < outModeInfo->XResolution ||␊ |
244 | ␉␉␉modeInfo.YResolution < outModeInfo->YResolution ||␊ |
245 | ␉␉␉modeBitsPerPixel < outModeInfo->BitsPerPixel )␊ |
246 | {␊ |
247 | continue; // Saved mode has more resolution.␊ |
248 | }␊ |
249 | ␉␉␊ |
250 | matchedMode = *modePtr;␊ |
251 | bcopy( &modeInfo, outModeInfo, sizeof(modeInfo) );␊ |
252 | }␊ |
253 | ␉␊ |
254 | return matchedMode;␊ |
255 | }␊ |
256 | ␊ |
257 | //==========================================================================␊ |
258 | // setupPalette␊ |
259 | ␊ |
260 | static void setupPalette( VBEPalette * p, const unsigned char * g )␊ |
261 | {␊ |
262 | int i;␊ |
263 | unsigned char * source = (unsigned char *) g;␊ |
264 | ␉␊ |
265 | for (i = 0; i < 256; i++)␊ |
266 | {␊ |
267 | (*p)[i] = 0;␊ |
268 | (*p)[i] |= ((unsigned long)((*source++) >> 2)) << 16; // Red␊ |
269 | (*p)[i] |= ((unsigned long)((*source++) >> 2)) << 8; // Green␊ |
270 | (*p)[i] |= ((unsigned long)((*source++) >> 2)); // Blue␊ |
271 | ␉␉␊ |
272 | }␊ |
273 | }␊ |
274 | ␊ |
275 | //==========================================================================␊ |
276 | // setVESAGraphicsMode␊ |
277 | #if UNUSED␊ |
278 | int setVESAGraphicsMode( unsigned short width, unsigned short height, unsigned char bitsPerPixel, unsigned short refreshRate )␊ |
279 | #else␊ |
280 | int setVESAGraphicsMode( unsigned short width, unsigned short height, unsigned char bitsPerPixel)␊ |
281 | #endif␊ |
282 | {␊ |
283 | VBEModeInfoBlock minfo;␊ |
284 | unsigned short mode;␊ |
285 | unsigned short vesaVersion;␊ |
286 | int err = errFuncNotSupported;␊ |
287 | ␉␊ |
288 | do {␊ |
289 | mode = getVESAModeWithProperties( width, height, bitsPerPixel,␊ |
290 | ␉␉␉␉␉␉␉␉␉␉ maColorModeBit |␊ |
291 | ␉␉␉␉␉␉␉␉␉␉ maModeIsSupportedBit |␊ |
292 | ␉␉␉␉␉␉␉␉␉␉ maGraphicsModeBit |␊ |
293 | ␉␉␉␉␉␉␉␉␉␉ maLinearFrameBufferAvailBit,␊ |
294 | ␉␉␉␉␉␉␉␉␉␉ 0,␊ |
295 | ␉␉␉␉␉␉␉␉␉␉ &minfo, &vesaVersion );␊ |
296 | if ( mode == modeEndOfList )␊ |
297 | {␊ |
298 | break;␊ |
299 | }␊ |
300 | #if UNUSED␊ |
301 | ␉␉//␊ |
302 | ␉␉// FIXME : generateCRTCTiming() causes crash.␊ |
303 | ␉␉//␊ |
304 | ␉␉␊ |
305 | ␉␉// if ( (vesaVersion >> 8) >= 3 && refreshRate >= 60 &&␊ |
306 | ␉␉// (gBootMode & kBootModeSafe) == 0 )␊ |
307 | ␉␉// {␊ |
308 | ␉␉// VBECRTCInfoBlock timing;␊ |
309 | ␉␉// ␊ |
310 | ␉␉// // Generate CRTC timing for given refresh rate.␊ |
311 | ␉␉// ␊ |
312 | ␉␉// generateCRTCTiming( minfo.XResolution, minfo.YResolution,␊ |
313 | ␉␉// refreshRate, kCRTCParamRefreshRate,␊ |
314 | ␉␉// &timing );␊ |
315 | ␉␉// ␊ |
316 | ␉␉// // Find the actual pixel clock supported by the hardware.␊ |
317 | ␉␉// ␊ |
318 | ␉␉// getVBEPixelClock( mode, &timing.PixelClock );␊ |
319 | ␉␉// ␊ |
320 | ␉␉// // Re-compute CRTC timing based on actual pixel clock.␊ |
321 | ␉␉// ␊ |
322 | ␉␉// generateCRTCTiming( minfo.XResolution, minfo.YResolution,␊ |
323 | ␉␉// timing.PixelClock, kCRTCParamPixelClock,␊ |
324 | ␉␉// &timing );␊ |
325 | ␉␉// ␊ |
326 | ␉␉// // Set the video mode and use specified CRTC timing.␊ |
327 | ␉␉// ␊ |
328 | ␉␉// err = setVBEMode( mode | kLinearFrameBufferBit |␊ |
329 | ␉␉// kCustomRefreshRateBit, &timing );␊ |
330 | ␉␉// }␊ |
331 | ␉␉// else␊ |
332 | ␉␉// {␊ |
333 | ␉␉// // Set the mode with default refresh rate.␊ |
334 | ␉␉// ␊ |
335 | ␉␉// err = setVBEMode( mode | kLinearFrameBufferBit, NULL );␊ |
336 | ␉␉// }␊ |
337 | #endif␊ |
338 | // Set the mode with default refresh rate.␊ |
339 | ␉␉␊ |
340 | err = setVBEMode( mode | kLinearFrameBufferBit, NULL );␊ |
341 | ␉␉␊ |
342 | if ( err != errSuccess )␊ |
343 | {␊ |
344 | break;␊ |
345 | }␊ |
346 | ␉␉␊ |
347 | // Set 8-bit color palette.␊ |
348 | ␉␉␊ |
349 | if ( minfo.BitsPerPixel == 8 )␊ |
350 | {␊ |
351 | VBEPalette palette;␊ |
352 | setupPalette( &palette, appleClut8 );␊ |
353 | if ((err = setVBEPalette(palette)) != errSuccess)␊ |
354 | {␊ |
355 | break;␊ |
356 | }␊ |
357 | }␊ |
358 | ␉␉␊ |
359 | // Is this required for buggy Video BIOS implementations?␊ |
360 | // On which adapter?␊ |
361 | ␉␉␊ |
362 | if ( minfo.BytesPerScanline == 0 )␊ |
363 | ␉␉␉minfo.BytesPerScanline = ( minfo.XResolution *␊ |
364 | ␉␉␉␉␉␉␉␉␉ minfo.BitsPerPixel ) >> 3;␊ |
365 | ␉␉␊ |
366 | // Update KernBootStruct using info provided by the selected␊ |
367 | // VESA mode.␊ |
368 | ␉␉␊ |
369 | bootArgs->Video.v_display = GRAPHICS_MODE;␊ |
370 | bootArgs->Video.v_width = minfo.XResolution;␊ |
371 | bootArgs->Video.v_height = minfo.YResolution;␊ |
372 | bootArgs->Video.v_depth = minfo.BitsPerPixel;␊ |
373 | bootArgs->Video.v_rowBytes = minfo.BytesPerScanline;␊ |
374 | bootArgs->Video.v_baseAddr = VBEMakeUInt32(minfo.PhysBasePtr);␊ |
375 | ␉␉␊ |
376 | }␊ |
377 | while ( 0 );␊ |
378 | ␉␊ |
379 | return err;␊ |
380 | }␊ |
381 | ␊ |
382 | ␊ |
383 | #ifndef OPTION_ROM␊ |
384 | ␊ |
385 | //==========================================================================␊ |
386 | // Simple decompressor for boot images encoded in RLE format.␊ |
387 | ␊ |
388 | char * decodeRLE( const void * rleData, int rleBlocks, int outBytes )␊ |
389 | {␊ |
390 | char *out, *cp;␊ |
391 | ␉␊ |
392 | struct RLEBlock {␊ |
393 | unsigned char count;␊ |
394 | unsigned char value;␊ |
395 | } * bp = (struct RLEBlock *) rleData;␊ |
396 | ␉␊ |
397 | out = cp = malloc( outBytes );␊ |
398 | if ( out == NULL ) return NULL;␊ |
399 | ␉␊ |
400 | while ( rleBlocks-- )␊ |
401 | {␊ |
402 | memset( cp, bp->value, bp->count );␊ |
403 | cp += bp->count;␊ |
404 | bp++;␊ |
405 | }␊ |
406 | ␉␊ |
407 | return out;␊ |
408 | }␊ |
409 | ␊ |
410 | //==========================================================================␊ |
411 | // LookUpCLUTIndex␊ |
412 | ␊ |
413 | unsigned long lookUpCLUTIndex( unsigned char index,␊ |
414 | ␉␉␉␉␉␉␉ unsigned char depth )␊ |
415 | {␊ |
416 | long result, red, green, blue;␊ |
417 | ␉␊ |
418 | red = appleClut8[index * 3 + 0];␊ |
419 | green = appleClut8[index * 3 + 1];␊ |
420 | blue = appleClut8[index * 3 + 2];␊ |
421 | ␉␊ |
422 | switch (depth) {␊ |
423 | case 16 :␊ |
424 | result = ((red & 0xF8) << 7) | ␊ |
425 | ␉␉␉((green & 0xF8) << 2) |␊ |
426 | ␉␉␉((blue & 0xF8) >> 3);␊ |
427 | result |= (result << 16);␊ |
428 | break;␊ |
429 | ␉␉␉␊ |
430 | case 32 :␊ |
431 | result = (red << 16) | (green << 8) | blue;␊ |
432 | break;␊ |
433 | ␉␉␉␊ |
434 | default :␊ |
435 | result = index | (index << 8);␊ |
436 | result |= (result << 16);␊ |
437 | break;␊ |
438 | }␊ |
439 | ␉␊ |
440 | return result;␊ |
441 | }␊ |
442 | ␊ |
443 | //==========================================================================␊ |
444 | // drawColorRectangle␊ |
445 | ␊ |
446 | void * stosl(void * dst, long val, long len)␊ |
447 | {␊ |
448 | asm volatile ( "rep; stosl"␊ |
449 | ␉␉␉␉ : "=c" (len), "=D" (dst)␊ |
450 | ␉␉␉␉ : "0" (len), "1" (dst), "a" (val)␊ |
451 | ␉␉␉␉ : "memory" );␊ |
452 | ␉␊ |
453 | return dst;␊ |
454 | }␊ |
455 | ␊ |
456 | void drawColorRectangle( unsigned short x,␊ |
457 | ␉␉␉␉␉␉unsigned short y,␊ |
458 | ␉␉␉␉␉␉unsigned short width,␊ |
459 | ␉␉␉␉␉␉unsigned short height,␊ |
460 | ␉␉␉␉␉␉unsigned char colorIndex )␊ |
461 | {␊ |
462 | long pixelBytes;␊ |
463 | long color = lookUpCLUTIndex( colorIndex, VIDEO(depth) );␊ |
464 | char * vram;␊ |
465 | ␉␊ |
466 | pixelBytes = VIDEO(depth) / 8;␊ |
467 | vram = (char *) VIDEO(baseAddr) +␊ |
468 | ␉VIDEO(rowBytes) * y + pixelBytes * x;␊ |
469 | ␉␊ |
470 | width = MIN(width, VIDEO(width) - x);␊ |
471 | height = MIN(height, VIDEO(height) - y);␊ |
472 | ␉␊ |
473 | while ( height-- )␊ |
474 | {␊ |
475 | int rem = ( pixelBytes * width ) % 4;␊ |
476 | if ( rem ) bcopy( &color, vram, rem );␊ |
477 | stosl( vram + rem, color, pixelBytes * width / 4 );␊ |
478 | vram += VIDEO(rowBytes);␊ |
479 | }␊ |
480 | }␊ |
481 | ␊ |
482 | #endif␊ |
483 | ␊ |
484 | ␊ |
485 | //==========================================================================␊ |
486 | // setVESATextMode␊ |
487 | ␊ |
488 | static int␊ |
489 | setVESATextMode( unsigned short cols,␊ |
490 | ␉␉␉␉unsigned short rows,␊ |
491 | ␉␉␉␉unsigned char bitsPerPixel )␊ |
492 | {␊ |
493 | VBEModeInfoBlock minfo;␊ |
494 | unsigned short mode = modeEndOfList;␊ |
495 | ␉␊ |
496 | if ( (cols != 80) || (rows != 25) ) // not 80x25 mode␊ |
497 | {␊ |
498 | mode = getVESAModeWithProperties( cols, rows, bitsPerPixel,␊ |
499 | ␉␉␉␉␉␉␉␉␉␉ maColorModeBit |␊ |
500 | ␉␉␉␉␉␉␉␉␉␉ maModeIsSupportedBit,␊ |
501 | ␉␉␉␉␉␉␉␉␉␉ maGraphicsModeBit,␊ |
502 | ␉␉␉␉␉␉␉␉␉␉ &minfo, NULL );␊ |
503 | }␊ |
504 | ␉␊ |
505 | if ( ( mode == modeEndOfList ) || ( setVBEMode(mode, NULL) != errSuccess ) )␊ |
506 | {␊ |
507 | video_mode( 2 ); // VGA BIOS, 80x25 text mode.␊ |
508 | minfo.XResolution = 80;␊ |
509 | minfo.YResolution = 25;␊ |
510 | }␊ |
511 | ␉␊ |
512 | // Update KernBootStruct using info provided by the selected␊ |
513 | // VESA mode.␊ |
514 | ␉␊ |
515 | bootArgs->Video.v_display = VGA_TEXT_MODE;␊ |
516 | bootArgs->Video.v_baseAddr = 0xb8000;␊ |
517 | bootArgs->Video.v_width = minfo.XResolution;␊ |
518 | bootArgs->Video.v_height = minfo.YResolution;␊ |
519 | bootArgs->Video.v_depth = 8;␊ |
520 | bootArgs->Video.v_rowBytes = 0x8000;␊ |
521 | ␉␊ |
522 | return errSuccess; // always return success␊ |
523 | }␊ |
524 | ␊ |
525 | //==========================================================================␊ |
526 | // getNumberArrayFromProperty␊ |
527 | ␊ |
528 | int␊ |
529 | getNumberArrayFromProperty( const char * propKey,␊ |
530 | ␉␉␉␉␉␉ unsigned long numbers[],␊ |
531 | ␉␉␉␉␉␉ unsigned long maxArrayCount )␊ |
532 | {␊ |
533 | char * propStr;␊ |
534 | unsigned long count = 0;␊ |
535 | ␉␊ |
536 | propStr = newStringForKey( (char *) propKey , &bootInfo->bootConfig );␊ |
537 | if ( propStr )␊ |
538 | {␊ |
539 | char * delimiter = propStr;␊ |
540 | char * p = propStr;␊ |
541 | ␉␉␊ |
542 | while ( count < maxArrayCount && *p != '\0' )␊ |
543 | {␊ |
544 | unsigned long val = strtoul( p, &delimiter, 10 );␊ |
545 | if ( p != delimiter )␊ |
546 | {␊ |
547 | numbers[count++] = val;␊ |
548 | p = delimiter;␊ |
549 | }␊ |
550 | while ( ( *p != '\0' ) && !isdigit(*p) )␊ |
551 | p++;␊ |
552 | }␊ |
553 | ␉␉␊ |
554 | free( propStr );␊ |
555 | }␊ |
556 | ␉␊ |
557 | return count;␊ |
558 | }␊ |
559 | ␊ |
560 | int initGraphicsMode ()␊ |
561 | {␊ |
562 | ␉unsigned long params[4];␊ |
563 | ␉int count;␊ |
564 | ␉␊ |
565 | ␉params[3] = 0;␊ |
566 | ␉count = getNumberArrayFromProperty( kGraphicsModeKey, params, 4 );␊ |
567 | ␉␊ |
568 | ␉// Try to find a resolution if "Graphics Mode" setting is not available.␊ |
569 | ␉if ( count < 3 )␊ |
570 | ␉{␊ |
571 | ␉␉params[0] = DEFAULT_SCREEN_WIDTH;␊ |
572 | ␉␉params[1] = DEFAULT_SCREEN_HEIGHT;␊ |
573 | ␉␉params[2] = 32;␊ |
574 | ␉}␊ |
575 | ␉␊ |
576 | ␉// Map from pixel format to bits per pixel.␊ |
577 | ␉␊ |
578 | ␉if ( params[2] == 256 ) params[2] = 8;␊ |
579 | ␉if ( params[2] == 555 ) params[2] = 16;␊ |
580 | ␉if ( params[2] == 888 ) params[2] = 32;␊ |
581 | #if UNUSED␊ |
582 | ␉return setVESAGraphicsMode( params[0], params[1], params[2], params[3] );␉␊ |
583 | #else␊ |
584 | ␉return setVESAGraphicsMode( params[0], params[1], params[2] );␊ |
585 | #endif␊ |
586 | }␊ |
587 | ␊ |
588 | //==========================================================================␊ |
589 | // setVideoMode␊ |
590 | //␊ |
591 | // Set the video mode to VGA_TEXT_MODE or GRAPHICS_MODE.␊ |
592 | #if UNUSED␊ |
593 | void␊ |
594 | setVideoMode( int mode, int drawgraphics)␊ |
595 | #else␊ |
596 | void␊ |
597 | setVideoMode( int mode)␊ |
598 | #endif␊ |
599 | {␊ |
600 | unsigned long params[4];␊ |
601 | int count;␊ |
602 | int err = errSuccess;␊ |
603 | ␊ |
604 | if ( mode == GRAPHICS_MODE )␊ |
605 | {␊ |
606 | ␉␉if ( (err=initGraphicsMode ()) == errSuccess ) {␊ |
607 | ␉␉␉if (gVerboseMode) {␊ |
608 | ␉␉␉␉// Tell the kernel to use text mode on a linear frame buffer display␊ |
609 | ␉␉␉␉bootArgs->Video.v_display = FB_TEXT_MODE;␊ |
610 | ␉␉␉} else {␊ |
611 | ␉␉␉␉bootArgs->Video.v_display = GRAPHICS_MODE;␊ |
612 | ␉␉␉}␊ |
613 | ␉␉}␊ |
614 | }␊ |
615 | ␉␊ |
616 | if ( (mode == VGA_TEXT_MODE) || (err != errSuccess) )␊ |
617 | {␊ |
618 | count = getNumberArrayFromProperty( kTextModeKey, params, 2 );␊ |
619 | if ( count < 2 )␊ |
620 | {␊ |
621 | params[0] = 80; // Default text mode is 80x25.␊ |
622 | params[1] = 25;␊ |
623 | }␊ |
624 | ␉␉␊ |
625 | ␉␉setVESATextMode( params[0], params[1], 4 );␊ |
626 | bootArgs->Video.v_display = VGA_TEXT_MODE;␊ |
627 | }␊ |
628 | ␉␊ |
629 | #if TEXT_SPINNER␊ |
630 | currentIndicator = 0;␊ |
631 | #endif␊ |
632 | }␊ |
633 | ␊ |
634 | //==========================================================================␊ |
635 | // Return the current video mode, VGA_TEXT_MODE or GRAPHICS_MODE.␊ |
636 | ␊ |
637 | inline int getVideoMode(void)␊ |
638 | {␊ |
639 | return bootArgs->Video.v_display;␊ |
640 | }␊ |
641 | #if TEXT_SPINNER␊ |
642 | ␊ |
643 | //==========================================================================␊ |
644 | // Display and clear the activity indicator.␊ |
645 | ␊ |
646 | static char indicator[] = {'-', '\\', '|', '/', '-', '\\', '|', '/', '\0'};␊ |
647 | //static char indicator[] = {'_', ' ','\0'};␊ |
648 | ␊ |
649 | // To prevent a ridiculously fast-spinning indicator,␊ |
650 | // ensure a minimum of 1/9 sec between animation frames.␊ |
651 | #define MIN_TICKS 2␊ |
652 | ␊ |
653 | void␊ |
654 | spinActivityIndicator(int sectors)␊ |
655 | {␊ |
656 | static unsigned long lastTickTime = 0, currentTickTime;␊ |
657 | ␊ |
658 | ␉bool doreturn = false;␊ |
659 | ␉execute_hook("spinActivity_hook", §ors, &doreturn, NULL, NULL, NULL, NULL);␊ |
660 | ␉if (doreturn == true) return;␊ |
661 | ␊ |
662 | ␉currentTickTime = time18(); // late binding␊ |
663 | ␉if (currentTickTime < lastTickTime + MIN_TICKS)␊ |
664 | ␉{␊ |
665 | ␉␉return;␊ |
666 | ␉}␊ |
667 | ␉else␊ |
668 | ␉{␊ |
669 | ␉␉lastTickTime = currentTickTime;␊ |
670 | ␉}␊ |
671 | ␉␊ |
672 | ␉if (getVideoMode() == VGA_TEXT_MODE)␊ |
673 | ␉{␊ |
674 | ␉␉if (currentIndicator >= sizeof(indicator))␊ |
675 | ␉␉{␊ |
676 | ␉␉␉currentIndicator = 0;␊ |
677 | ␉␉}␊ |
678 | ␉␉putc(indicator[currentIndicator++]);␊ |
679 | ␉␉putc('\b');␊ |
680 | ␉}␊ |
681 | }␊ |
682 | ␊ |
683 | void␊ |
684 | clearActivityIndicator( void )␊ |
685 | {␊ |
686 | if ( getVideoMode() == VGA_TEXT_MODE )␊ |
687 | {␊ |
688 | ␉␉putc(' ');␊ |
689 | ␉␉putc('\b');␊ |
690 | }␊ |
691 | }␊ |
692 | ␊ |
693 | #endif |