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 | static void setupPalette( VBEPalette * p, const unsigned char * g );␊ |
52 | static int␊ |
53 | setVESATextMode( unsigned short cols,␊ |
54 | ␉␉␉␉unsigned short rows,␊ |
55 | ␉␉␉␉unsigned char bitsPerPixel );␊ |
56 | ␊ |
57 | #ifndef OPTION_ROM␊ |
58 | int␊ |
59 | convertImage( unsigned short width,␊ |
60 | ␉␉␉ unsigned short height,␊ |
61 | ␉␉␉ const unsigned char *imageData,␊ |
62 | ␉␉␉ unsigned char **newImageData )␊ |
63 | {␊ |
64 | int cnt;␊ |
65 | unsigned char *img = 0;␊ |
66 | unsigned short *img16;␊ |
67 | unsigned long *img32;␊ |
68 | ␉␊ |
69 | switch ( VIDEO(depth) ) {␊ |
70 | ␉␉case 16 :␊ |
71 | ␉␉␉img16 = malloc(width * height * 2);␊ |
72 | ␉␉␉if ( !img16 ) break;␊ |
73 | ␉␉␉for (cnt = 0; cnt < (width * height); cnt++)␊ |
74 | ␉␉␉␉img16[cnt] = lookUpCLUTIndex(imageData[cnt], 16);␊ |
75 | ␉␉␉img = (unsigned char *)img16;␊ |
76 | ␉␉␉break;␊ |
77 | ␉␉␉␊ |
78 | ␉␉case 32 :␊ |
79 | ␉␉␉img32 = malloc(width * height * 4);␊ |
80 | ␉␉␉if ( !img32 ) break;␊ |
81 | ␉␉␉for (cnt = 0; cnt < (width * height); cnt++)␊ |
82 | ␉␉␉␉img32[cnt] = lookUpCLUTIndex(imageData[cnt], 32);␊ |
83 | ␉␉␉img = (unsigned char *)img32;␊ |
84 | ␉␉␉break;␊ |
85 | ␉␉␉␊ |
86 | ␉␉default :␊ |
87 | ␉␉␉img = malloc(width * height);␊ |
88 | ␉␉␉bcopy(imageData, img, width * height);␊ |
89 | ␉␉␉break;␊ |
90 | }␊ |
91 | *newImageData = img;␊ |
92 | return 0;␊ |
93 | }␊ |
94 | ␊ |
95 | //==========================================================================␊ |
96 | // drawDataRectangle␊ |
97 | ␊ |
98 | void drawDataRectangle( unsigned short x,␊ |
99 | ␉␉␉␉␉ unsigned short y,␊ |
100 | ␉␉␉␉␉ unsigned short width,␊ |
101 | ␉␉␉␉␉ unsigned short height,␊ |
102 | ␉␉␉␉␉ unsigned char * data )␊ |
103 | {␊ |
104 | unsigned short drawWidth;␊ |
105 | long pixelBytes = VIDEO(depth) / 8;␊ |
106 | unsigned char * vram = (unsigned char *) VIDEO(baseAddr) +␊ |
107 | ␉VIDEO(rowBytes) * y + pixelBytes * x;␊ |
108 | ␉␊ |
109 | drawWidth = MIN(width, VIDEO(width) - x);␊ |
110 | height = MIN(height, VIDEO(height) - y);␊ |
111 | while ( height-- ) {␊ |
112 | bcopy( data, vram, drawWidth * pixelBytes );␊ |
113 | vram += VIDEO(rowBytes);␊ |
114 | data += width * pixelBytes;␊ |
115 | }␊ |
116 | }␊ |
117 | #endif␊ |
118 | ␊ |
119 | //==========================================================================␊ |
120 | // getVESAModeWithProperties␊ |
121 | //␊ |
122 | // Return the VESA mode that matches the properties specified.␊ |
123 | // If a mode is not found, then return the "best" available mode.␊ |
124 | ␊ |
125 | unsigned short␊ |
126 | getVESAModeWithProperties( unsigned short width,␊ |
127 | ␉␉␉␉␉␉ unsigned short height,␊ |
128 | ␉␉␉␉␉␉ unsigned char bitsPerPixel,␊ |
129 | ␉␉␉␉␉␉ unsigned short attributesSet,␊ |
130 | ␉␉␉␉␉␉ unsigned short attributesClear,␊ |
131 | ␉␉␉␉␉␉ VBEModeInfoBlock * outModeInfo,␊ |
132 | ␉␉␉␉␉␉ unsigned short * vesaVersion )␊ |
133 | {␊ |
134 | VBEInfoBlock vbeInfo;␊ |
135 | unsigned short * modePtr;␊ |
136 | VBEModeInfoBlock modeInfo;␊ |
137 | unsigned char modeBitsPerPixel;␊ |
138 | unsigned short matchedMode = modeEndOfList;␊ |
139 | int err;␊ |
140 | ␉␊ |
141 | // Clear output mode info.␊ |
142 | ␉␊ |
143 | //bzero( outModeInfo, sizeof(*outModeInfo) );␊ |
144 | ␉bzero( outModeInfo, sizeof(VBEModeInfoBlock) );␊ |
145 | ␊ |
146 | // Get VBE controller info containing the list of supported modes.␊ |
147 | ␉␊ |
148 | //bzero( &vbeInfo, sizeof(vbeInfo) );␊ |
149 | bzero( &vbeInfo, sizeof(VBEInfoBlock) );␊ |
150 | ␊ |
151 | strcpy( (char*)&vbeInfo, "VBE2" );␊ |
152 | err = getVBEInfo( &vbeInfo );␊ |
153 | if ( err != errSuccess )␊ |
154 | {␊ |
155 | return modeEndOfList;␊ |
156 | }␊ |
157 | ␉␊ |
158 | // Report the VESA major/minor version number.␊ |
159 | ␉␊ |
160 | if (vesaVersion) *vesaVersion = vbeInfo.VESAVersion;␊ |
161 | ␉␊ |
162 | // Loop through the mode list, and find the matching mode.␊ |
163 | ␉␊ |
164 | for ( modePtr = VBEDecodeFP( unsigned short *, vbeInfo.VideoModePtr );␊ |
165 | ␉␉ *modePtr != modeEndOfList; modePtr++ )␊ |
166 | {␊ |
167 | // Get mode information.␊ |
168 | ␉␉␊ |
169 | //bzero( &modeInfo, sizeof(modeInfo) );␊ |
170 | bzero( &modeInfo, sizeof(VBEModeInfoBlock) );␊ |
171 | ␊ |
172 | err = getVBEModeInfo( *modePtr, &modeInfo );␊ |
173 | if ( err != errSuccess )␊ |
174 | {␊ |
175 | continue;␊ |
176 | }␊ |
177 | ␉␉␊ |
178 | #if DEBUG␊ |
179 | printf("Mode %x: %dx%dx%d mm:%d attr:%x\n",␊ |
180 | *modePtr, modeInfo.XResolution, modeInfo.YResolution,␊ |
181 | modeInfo.BitsPerPixel, modeInfo.MemoryModel,␊ |
182 | modeInfo.ModeAttributes);␊ |
183 | #endif␊ |
184 | ␉␉␊ |
185 | // Filter out unwanted modes based on mode attributes.␊ |
186 | ␉␉␊ |
187 | if ( ( ( modeInfo.ModeAttributes & attributesSet ) != attributesSet )␊ |
188 | ␉␉␉|| ( ( modeInfo.ModeAttributes & attributesClear ) != 0 ) )␊ |
189 | {␊ |
190 | continue;␊ |
191 | }␊ |
192 | ␉␉␊ |
193 | // Pixel depth in bits.␊ |
194 | ␉␉␊ |
195 | modeBitsPerPixel = modeInfo.BitsPerPixel;␊ |
196 | ␉␉␊ |
197 | if ( ( modeBitsPerPixel == 4 ) && ( modeInfo.MemoryModel == 0 ) )␊ |
198 | {␊ |
199 | // Text mode, 16 colors.␊ |
200 | }␊ |
201 | else if ( ( modeBitsPerPixel == 8 ) && ( modeInfo.MemoryModel == 4 ) )␊ |
202 | {␊ |
203 | // Packed pixel, 256 colors.␊ |
204 | }␊ |
205 | else if ( ( ( modeBitsPerPixel == 16 ) || ( modeBitsPerPixel == 15 ) )␊ |
206 | ␉␉␉␉ && ( modeInfo.MemoryModel == 6 )␊ |
207 | ␉␉␉␉ && ( modeInfo.RedMaskSize == 5 )␊ |
208 | ␉␉␉␉ && ( modeInfo.GreenMaskSize == 5 )␊ |
209 | ␉␉␉␉ && ( modeInfo.BlueMaskSize == 5 ) )␊ |
210 | {␊ |
211 | // Direct color, 16 bpp (1:5:5:5).␊ |
212 | modeInfo.BitsPerPixel = modeBitsPerPixel = 16;␊ |
213 | }␊ |
214 | else if ( ( modeBitsPerPixel == 32 )␊ |
215 | ␉␉␉␉ && ( modeInfo.MemoryModel == 6 )␊ |
216 | ␉␉␉␉ && ( modeInfo.RedMaskSize == 8 )␊ |
217 | ␉␉␉␉ && ( modeInfo.GreenMaskSize == 8 )␊ |
218 | ␉␉␉␉ && ( modeInfo.BlueMaskSize == 8 ) )␊ |
219 | {␊ |
220 | // Direct color, 32 bpp (8:8:8:8).␊ |
221 | }␊ |
222 | else␊ |
223 | {␊ |
224 | continue; // Not a supported mode.␊ |
225 | }␊ |
226 | ␉␉␊ |
227 | // Modes larger than the specified dimensions are skipped.␊ |
228 | ␉␉␊ |
229 | if ( ( modeInfo.XResolution > width ) ||␊ |
230 | ␉␉␉( modeInfo.YResolution > height ) )␊ |
231 | {␊ |
232 | continue;␊ |
233 | }␊ |
234 | ␉␉␊ |
235 | // Perfect match, we're done looking.␊ |
236 | ␉␉␊ |
237 | if ( ( modeInfo.XResolution == width ) &&␊ |
238 | ␉␉␉( modeInfo.YResolution == height ) &&␊ |
239 | ␉␉␉( modeBitsPerPixel == bitsPerPixel ) )␊ |
240 | {␊ |
241 | matchedMode = *modePtr;␊ |
242 | //bcopy( &modeInfo, outModeInfo, sizeof(modeInfo) ); ␊ |
243 | bcopy( &modeInfo, outModeInfo, sizeof(VBEModeInfoBlock) );␊ |
244 | ␊ |
245 | break;␊ |
246 | }␊ |
247 | ␉␉␊ |
248 | // Save the next "best" mode in case a perfect match is not found.␊ |
249 | ␉␉␊ |
250 | if ( modeInfo.XResolution == outModeInfo->XResolution &&␊ |
251 | ␉␉␉modeInfo.YResolution == outModeInfo->YResolution &&␊ |
252 | ␉␉␉modeBitsPerPixel <= outModeInfo->BitsPerPixel )␊ |
253 | {␊ |
254 | continue; // Saved mode has more depth.␊ |
255 | }␊ |
256 | if ( modeInfo.XResolution < outModeInfo->XResolution ||␊ |
257 | ␉␉␉modeInfo.YResolution < outModeInfo->YResolution ||␊ |
258 | ␉␉␉modeBitsPerPixel < outModeInfo->BitsPerPixel )␊ |
259 | {␊ |
260 | continue; // Saved mode has more resolution.␊ |
261 | }␊ |
262 | ␉␉␊ |
263 | matchedMode = *modePtr;␊ |
264 | //bcopy( &modeInfo, outModeInfo, sizeof(modeInfo) );␊ |
265 | bcopy( &modeInfo, outModeInfo, sizeof(VBEModeInfoBlock) );␊ |
266 | ␊ |
267 | }␊ |
268 | ␉␊ |
269 | return matchedMode;␊ |
270 | }␊ |
271 | ␊ |
272 | //==========================================================================␊ |
273 | // setupPalette␊ |
274 | ␊ |
275 | static void setupPalette( VBEPalette * p, const unsigned char * g )␊ |
276 | {␊ |
277 | int i;␊ |
278 | unsigned char * source = (unsigned char *) g;␊ |
279 | ␉␊ |
280 | for (i = 0; i < 256; i++)␊ |
281 | {␊ |
282 | (*p)[i] = 0;␊ |
283 | (*p)[i] |= ((unsigned long)((*source++) >> 2)) << 16; // Red␊ |
284 | (*p)[i] |= ((unsigned long)((*source++) >> 2)) << 8; // Green␊ |
285 | (*p)[i] |= ((unsigned long)((*source++) >> 2)); // Blue␊ |
286 | ␉␉␊ |
287 | }␊ |
288 | }␊ |
289 | ␊ |
290 | //==========================================================================␊ |
291 | // setVESAGraphicsMode␊ |
292 | #if UNUSED␊ |
293 | int setVESAGraphicsMode( unsigned short width, unsigned short height, unsigned char bitsPerPixel, unsigned short refreshRate )␊ |
294 | #else␊ |
295 | int setVESAGraphicsMode( unsigned short width, unsigned short height, unsigned char bitsPerPixel)␊ |
296 | #endif␊ |
297 | {␊ |
298 | VBEModeInfoBlock minfo;␊ |
299 | unsigned short mode;␊ |
300 | unsigned short vesaVersion;␊ |
301 | int err = errFuncNotSupported;␊ |
302 | ␉␊ |
303 | do {␊ |
304 | mode = getVESAModeWithProperties( width, height, bitsPerPixel,␊ |
305 | ␉␉␉␉␉␉␉␉␉␉ maColorModeBit |␊ |
306 | ␉␉␉␉␉␉␉␉␉␉ maModeIsSupportedBit |␊ |
307 | ␉␉␉␉␉␉␉␉␉␉ maGraphicsModeBit |␊ |
308 | ␉␉␉␉␉␉␉␉␉␉ maLinearFrameBufferAvailBit,␊ |
309 | ␉␉␉␉␉␉␉␉␉␉ 0,␊ |
310 | ␉␉␉␉␉␉␉␉␉␉ &minfo, &vesaVersion );␊ |
311 | if ( mode == modeEndOfList )␊ |
312 | {␊ |
313 | break;␊ |
314 | }␊ |
315 | #if UNUSED␊ |
316 | ␉␉//␊ |
317 | ␉␉// FIXME : generateCRTCTiming() causes crash.␊ |
318 | ␉␉//␊ |
319 | ␉␉␊ |
320 | ␉␉// if ( (vesaVersion >> 8) >= 3 && refreshRate >= 60 &&␊ |
321 | ␉␉// (gBootMode & kBootModeSafe) == 0 )␊ |
322 | ␉␉// {␊ |
323 | ␉␉// VBECRTCInfoBlock timing;␊ |
324 | ␉␉// ␊ |
325 | ␉␉// // Generate CRTC timing for given refresh rate.␊ |
326 | ␉␉// ␊ |
327 | ␉␉// generateCRTCTiming( minfo.XResolution, minfo.YResolution,␊ |
328 | ␉␉// refreshRate, kCRTCParamRefreshRate,␊ |
329 | ␉␉// &timing );␊ |
330 | ␉␉// ␊ |
331 | ␉␉// // Find the actual pixel clock supported by the hardware.␊ |
332 | ␉␉// ␊ |
333 | ␉␉// getVBEPixelClock( mode, &timing.PixelClock );␊ |
334 | ␉␉// ␊ |
335 | ␉␉// // Re-compute CRTC timing based on actual pixel clock.␊ |
336 | ␉␉// ␊ |
337 | ␉␉// generateCRTCTiming( minfo.XResolution, minfo.YResolution,␊ |
338 | ␉␉// timing.PixelClock, kCRTCParamPixelClock,␊ |
339 | ␉␉// &timing );␊ |
340 | ␉␉// ␊ |
341 | ␉␉// // Set the video mode and use specified CRTC timing.␊ |
342 | ␉␉// ␊ |
343 | ␉␉// err = setVBEMode( mode | kLinearFrameBufferBit |␊ |
344 | ␉␉// kCustomRefreshRateBit, &timing );␊ |
345 | ␉␉// }␊ |
346 | ␉␉// else␊ |
347 | ␉␉// {␊ |
348 | ␉␉// // Set the mode with default refresh rate.␊ |
349 | ␉␉// ␊ |
350 | ␉␉// err = setVBEMode( mode | kLinearFrameBufferBit, NULL );␊ |
351 | ␉␉// }␊ |
352 | #endif␊ |
353 | // Set the mode with default refresh rate.␊ |
354 | ␉␉␊ |
355 | err = setVBEMode( mode | kLinearFrameBufferBit, NULL );␊ |
356 | ␉␉␊ |
357 | if ( err != errSuccess )␊ |
358 | {␊ |
359 | break;␊ |
360 | }␊ |
361 | ␉␉␊ |
362 | // Set 8-bit color palette.␊ |
363 | ␉␉␊ |
364 | if ( minfo.BitsPerPixel == 8 )␊ |
365 | {␊ |
366 | VBEPalette palette;␊ |
367 | setupPalette( &palette, appleClut8 );␊ |
368 | if ((err = setVBEPalette(palette)) != errSuccess)␊ |
369 | {␊ |
370 | break;␊ |
371 | }␊ |
372 | }␊ |
373 | ␉␉␊ |
374 | // Is this required for buggy Video BIOS implementations?␊ |
375 | // On which adapter?␊ |
376 | ␉␉␊ |
377 | if ( minfo.BytesPerScanline == 0 )␊ |
378 | ␉␉␉minfo.BytesPerScanline = ( minfo.XResolution *␊ |
379 | ␉␉␉␉␉␉␉␉␉ minfo.BitsPerPixel ) >> 3;␊ |
380 | ␉␉␊ |
381 | // Update KernBootStruct using info provided by the selected␊ |
382 | // VESA mode.␊ |
383 | ␉␉␊ |
384 | bootArgs->Video.v_display = GRAPHICS_MODE;␊ |
385 | bootArgs->Video.v_width = minfo.XResolution;␊ |
386 | bootArgs->Video.v_height = minfo.YResolution;␊ |
387 | bootArgs->Video.v_depth = minfo.BitsPerPixel;␊ |
388 | bootArgs->Video.v_rowBytes = minfo.BytesPerScanline;␊ |
389 | bootArgs->Video.v_baseAddr = VBEMakeUInt32(minfo.PhysBasePtr);␊ |
390 | ␉␉␊ |
391 | }␊ |
392 | while ( 0 );␊ |
393 | ␉␊ |
394 | return err;␊ |
395 | }␊ |
396 | ␊ |
397 | ␊ |
398 | #ifndef OPTION_ROM␊ |
399 | ␊ |
400 | //==========================================================================␊ |
401 | // Simple decompressor for boot images encoded in RLE format.␊ |
402 | ␊ |
403 | char * decodeRLE( const void * rleData, int rleBlocks, int outBytes )␊ |
404 | {␊ |
405 | char *out, *cp;␊ |
406 | ␉␊ |
407 | struct RLEBlock {␊ |
408 | unsigned char count;␊ |
409 | unsigned char value;␊ |
410 | } * bp = (struct RLEBlock *) rleData;␊ |
411 | ␉␊ |
412 | out = cp = malloc( outBytes );␊ |
413 | if ( out == NULL ) return NULL;␊ |
414 | ␉␊ |
415 | while ( rleBlocks-- )␊ |
416 | {␊ |
417 | memset( cp, bp->value, bp->count );␊ |
418 | cp += bp->count;␊ |
419 | bp++;␊ |
420 | }␊ |
421 | ␉␊ |
422 | return out;␊ |
423 | }␊ |
424 | ␊ |
425 | //==========================================================================␊ |
426 | // LookUpCLUTIndex␊ |
427 | ␊ |
428 | unsigned long lookUpCLUTIndex( unsigned char index,␊ |
429 | ␉␉␉␉␉␉␉ unsigned char depth )␊ |
430 | {␊ |
431 | long result, red, green, blue;␊ |
432 | ␉␊ |
433 | red = appleClut8[index * 3 + 0];␊ |
434 | green = appleClut8[index * 3 + 1];␊ |
435 | blue = appleClut8[index * 3 + 2];␊ |
436 | ␉␊ |
437 | switch (depth) {␊ |
438 | case 16 :␊ |
439 | result = ((red & 0xF8) << 7) | ␊ |
440 | ␉␉␉((green & 0xF8) << 2) |␊ |
441 | ␉␉␉((blue & 0xF8) >> 3);␊ |
442 | result |= (result << 16);␊ |
443 | break;␊ |
444 | ␉␉␉␊ |
445 | case 32 :␊ |
446 | result = (red << 16) | (green << 8) | blue;␊ |
447 | break;␊ |
448 | ␉␉␉␊ |
449 | default :␊ |
450 | result = index | (index << 8);␊ |
451 | result |= (result << 16);␊ |
452 | break;␊ |
453 | }␊ |
454 | ␉␊ |
455 | return result;␊ |
456 | }␊ |
457 | ␊ |
458 | //==========================================================================␊ |
459 | // drawColorRectangle␊ |
460 | ␊ |
461 | void * stosl(void * dst, long val, long len)␊ |
462 | {␊ |
463 | asm volatile ( "rep; stosl"␊ |
464 | ␉␉␉␉ : "=c" (len), "=D" (dst)␊ |
465 | ␉␉␉␉ : "0" (len), "1" (dst), "a" (val)␊ |
466 | ␉␉␉␉ : "memory" );␊ |
467 | ␉␊ |
468 | return dst;␊ |
469 | }␊ |
470 | ␊ |
471 | void drawColorRectangle( unsigned short x,␊ |
472 | ␉␉␉␉␉␉unsigned short y,␊ |
473 | ␉␉␉␉␉␉unsigned short width,␊ |
474 | ␉␉␉␉␉␉unsigned short height,␊ |
475 | ␉␉␉␉␉␉unsigned char colorIndex )␊ |
476 | {␊ |
477 | long pixelBytes;␊ |
478 | long color = lookUpCLUTIndex( colorIndex, VIDEO(depth) );␊ |
479 | char * vram;␊ |
480 | ␉␊ |
481 | pixelBytes = VIDEO(depth) / 8;␊ |
482 | vram = (char *) VIDEO(baseAddr) +␊ |
483 | ␉VIDEO(rowBytes) * y + pixelBytes * x;␊ |
484 | ␉␊ |
485 | width = MIN(width, VIDEO(width) - x);␊ |
486 | height = MIN(height, VIDEO(height) - y);␊ |
487 | ␉␊ |
488 | while ( height-- )␊ |
489 | {␊ |
490 | int rem = ( pixelBytes * width ) % 4;␊ |
491 | if ( rem ) bcopy( &color, vram, rem );␊ |
492 | stosl( vram + rem, color, pixelBytes * width / 4 );␊ |
493 | vram += VIDEO(rowBytes);␊ |
494 | }␊ |
495 | }␊ |
496 | ␊ |
497 | #endif␊ |
498 | ␊ |
499 | ␊ |
500 | //==========================================================================␊ |
501 | // setVESATextMode␊ |
502 | ␊ |
503 | static int␊ |
504 | setVESATextMode( unsigned short cols,␊ |
505 | ␉␉␉␉unsigned short rows,␊ |
506 | ␉␉␉␉unsigned char bitsPerPixel )␊ |
507 | {␊ |
508 | VBEModeInfoBlock minfo;␊ |
509 | unsigned short mode = modeEndOfList;␊ |
510 | ␉␊ |
511 | if ( (cols != 80) || (rows != 25) ) // not 80x25 mode␊ |
512 | {␊ |
513 | mode = getVESAModeWithProperties( cols, rows, bitsPerPixel,␊ |
514 | ␉␉␉␉␉␉␉␉␉␉ maColorModeBit |␊ |
515 | ␉␉␉␉␉␉␉␉␉␉ maModeIsSupportedBit,␊ |
516 | ␉␉␉␉␉␉␉␉␉␉ maGraphicsModeBit,␊ |
517 | ␉␉␉␉␉␉␉␉␉␉ &minfo, NULL );␊ |
518 | }␊ |
519 | ␉␊ |
520 | if ( ( mode == modeEndOfList ) || ( setVBEMode(mode, NULL) != errSuccess ) )␊ |
521 | {␊ |
522 | video_mode( 2 ); // VGA BIOS, 80x25 text mode.␊ |
523 | minfo.XResolution = 80;␊ |
524 | minfo.YResolution = 25;␊ |
525 | }␊ |
526 | ␉␊ |
527 | // Update KernBootStruct using info provided by the selected␊ |
528 | // VESA mode.␊ |
529 | ␉␊ |
530 | bootArgs->Video.v_display = VGA_TEXT_MODE;␊ |
531 | bootArgs->Video.v_baseAddr = 0xb8000;␊ |
532 | bootArgs->Video.v_width = minfo.XResolution;␊ |
533 | bootArgs->Video.v_height = minfo.YResolution;␊ |
534 | bootArgs->Video.v_depth = 8;␊ |
535 | bootArgs->Video.v_rowBytes = 0x8000;␊ |
536 | ␉␊ |
537 | return errSuccess; // always return success␊ |
538 | }␊ |
539 | ␊ |
540 | //==========================================================================␊ |
541 | // getNumberArrayFromProperty␊ |
542 | ␊ |
543 | int␊ |
544 | getNumberArrayFromProperty( const char * propKey,␊ |
545 | ␉␉␉␉␉␉ unsigned long numbers[],␊ |
546 | ␉␉␉␉␉␉ unsigned long maxArrayCount )␊ |
547 | {␊ |
548 | char * propStr;␊ |
549 | unsigned long count = 0;␊ |
550 | ␉␊ |
551 | propStr = newStringForKey( (char *) propKey , &bootInfo->bootConfig );␊ |
552 | if ( propStr )␊ |
553 | {␊ |
554 | char * delimiter = propStr;␊ |
555 | char * p = propStr;␊ |
556 | ␉␉␊ |
557 | while ( count < maxArrayCount && *p != '\0' )␊ |
558 | {␊ |
559 | unsigned long val = strtoul( p, &delimiter, 10 );␊ |
560 | if ( p != delimiter )␊ |
561 | {␊ |
562 | numbers[count++] = val;␊ |
563 | p = delimiter;␊ |
564 | }␊ |
565 | while ( ( *p != '\0' ) && !isdigit(*p) )␊ |
566 | p++;␊ |
567 | }␊ |
568 | ␉␉␊ |
569 | free( propStr );␊ |
570 | }␊ |
571 | ␉␊ |
572 | return count;␊ |
573 | }␊ |
574 | ␊ |
575 | int initGraphicsMode ()␊ |
576 | {␊ |
577 | ␉unsigned long params[4];␊ |
578 | ␉int count;␊ |
579 | ␉␊ |
580 | ␉params[3] = 0;␊ |
581 | ␉count = getNumberArrayFromProperty( kGraphicsModeKey, params, 4 );␊ |
582 | ␉␊ |
583 | ␉// Try to find a resolution if "Graphics Mode" setting is not available.␊ |
584 | ␉if ( count < 3 )␊ |
585 | ␉{␊ |
586 | ␉␉params[0] = DEFAULT_SCREEN_WIDTH;␊ |
587 | ␉␉params[1] = DEFAULT_SCREEN_HEIGHT;␊ |
588 | ␉␉params[2] = 32;␊ |
589 | ␉}␊ |
590 | ␉␊ |
591 | ␉// Map from pixel format to bits per pixel.␊ |
592 | ␉␊ |
593 | ␉if ( params[2] == 256 ) params[2] = 8;␊ |
594 | ␉if ( params[2] == 555 ) params[2] = 16;␊ |
595 | ␉if ( params[2] == 888 ) params[2] = 32;␊ |
596 | #if UNUSED␊ |
597 | ␉return setVESAGraphicsMode( params[0], params[1], params[2], params[3] );␉␊ |
598 | #else␊ |
599 | ␉return setVESAGraphicsMode( params[0], params[1], params[2] );␊ |
600 | #endif␊ |
601 | }␊ |
602 | ␊ |
603 | //==========================================================================␊ |
604 | // setVideoMode␊ |
605 | //␊ |
606 | // Set the video mode to VGA_TEXT_MODE or GRAPHICS_MODE.␊ |
607 | #if UNUSED␊ |
608 | void␊ |
609 | setVideoMode( int mode, int drawgraphics)␊ |
610 | #else␊ |
611 | void␊ |
612 | setVideoMode( int mode)␊ |
613 | #endif␊ |
614 | {␊ |
615 | unsigned long params[4];␊ |
616 | int count;␊ |
617 | int err = errSuccess;␊ |
618 | ␊ |
619 | if ( mode == GRAPHICS_MODE )␊ |
620 | {␊ |
621 | ␉␉if ( (err=initGraphicsMode ()) == errSuccess ) {␊ |
622 | ␉␉␉if (gVerboseMode) {␊ |
623 | ␉␉␉␉// Tell the kernel to use text mode on a linear frame buffer display␊ |
624 | ␉␉␉␉bootArgs->Video.v_display = FB_TEXT_MODE;␊ |
625 | ␉␉␉} else {␊ |
626 | ␉␉␉␉bootArgs->Video.v_display = GRAPHICS_MODE;␊ |
627 | ␉␉␉}␊ |
628 | ␉␉}␊ |
629 | }␊ |
630 | ␉␊ |
631 | if ( (mode == VGA_TEXT_MODE) || (err != errSuccess) )␊ |
632 | {␊ |
633 | count = getNumberArrayFromProperty( kTextModeKey, params, 2 );␊ |
634 | if ( count < 2 )␊ |
635 | {␊ |
636 | params[0] = 80; // Default text mode is 80x25.␊ |
637 | params[1] = 25;␊ |
638 | }␊ |
639 | ␉␉␊ |
640 | ␉␉setVESATextMode( params[0], params[1], 4 );␊ |
641 | bootArgs->Video.v_display = VGA_TEXT_MODE;␊ |
642 | }␊ |
643 | ␉␊ |
644 | #if TEXT_SPINNER␊ |
645 | currentIndicator = 0;␊ |
646 | #endif␊ |
647 | }␊ |
648 | ␊ |
649 | //==========================================================================␊ |
650 | // Return the current video mode, VGA_TEXT_MODE or GRAPHICS_MODE.␊ |
651 | ␊ |
652 | inline int getVideoMode(void)␊ |
653 | {␊ |
654 | return bootArgs->Video.v_display;␊ |
655 | }␊ |
656 | #if TEXT_SPINNER␊ |
657 | ␊ |
658 | //==========================================================================␊ |
659 | // Display and clear the activity indicator.␊ |
660 | ␊ |
661 | static char indicator[] = {'-', '\\', '|', '/', '-', '\\', '|', '/', '\0'};␊ |
662 | //static char indicator[] = {'_', ' ','\0'};␊ |
663 | ␊ |
664 | // To prevent a ridiculously fast-spinning indicator,␊ |
665 | // ensure a minimum of 1/9 sec between animation frames.␊ |
666 | #define MIN_TICKS 2␊ |
667 | ␊ |
668 | void␊ |
669 | spinActivityIndicator(int sectors)␊ |
670 | {␊ |
671 | static unsigned long lastTickTime = 0, currentTickTime;␊ |
672 | ␊ |
673 | ␉bool doreturn = false;␊ |
674 | ␉execute_hook("spinActivity_hook", §ors, &doreturn, NULL, NULL, NULL, NULL);␊ |
675 | ␉if (doreturn == true) return;␊ |
676 | ␊ |
677 | ␉currentTickTime = time18(); // late binding␊ |
678 | ␉if (currentTickTime < lastTickTime + MIN_TICKS)␊ |
679 | ␉{␊ |
680 | ␉␉return;␊ |
681 | ␉}␊ |
682 | ␉else␊ |
683 | ␉{␊ |
684 | ␉␉lastTickTime = currentTickTime;␊ |
685 | ␉}␊ |
686 | ␉␊ |
687 | ␉if (getVideoMode() == VGA_TEXT_MODE)␊ |
688 | ␉{␊ |
689 | ␉␉if (currentIndicator >= sizeof(indicator))␊ |
690 | ␉␉{␊ |
691 | ␉␉␉currentIndicator = 0;␊ |
692 | ␉␉}␊ |
693 | ␉␉putc(indicator[currentIndicator++]);␊ |
694 | ␉␉putc('\b');␊ |
695 | ␉}␊ |
696 | }␊ |
697 | ␊ |
698 | void␊ |
699 | clearActivityIndicator( void )␊ |
700 | {␊ |
701 | if ( getVideoMode() == VGA_TEXT_MODE )␊ |
702 | {␊ |
703 | ␉␉putc(' ');␊ |
704 | ␉␉putc('\b');␊ |
705 | }␊ |
706 | }␊ |
707 | ␊ |
708 | #endif |