| 1 | /* |
| 2 | * Copyright © 2000 SuSE, Inc. |
| 3 | * |
| 4 | * Permission to use, copy, modify, distribute, and sell this software and its |
| 5 | * documentation for any purpose is hereby granted without fee, provided that |
| 6 | * the above copyright notice appear in all copies and that both that |
| 7 | * copyright notice and this permission notice appear in supporting |
| 8 | * documentation, and that the name of SuSE not be used in advertising or |
| 9 | * publicity pertaining to distribution of the software without specific, |
| 10 | * written prior permission. SuSE makes no representations about the |
| 11 | * suitability of this software for any purpose. It is provided "as is" |
| 12 | * without express or implied warranty. |
| 13 | * |
| 14 | * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL |
| 15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE |
| 16 | * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 17 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| 18 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| 19 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 20 | * |
| 21 | * Author: Keith Packard, SuSE, Inc. |
| 22 | */ |
| 23 | |
| 24 | #ifdef HAVE_DIX_CONFIG_H |
| 25 | #include <dix-config.h> |
| 26 | #endif |
| 27 | |
| 28 | #include <string.h> |
| 29 | |
| 30 | #include "fb.h" |
| 31 | |
| 32 | /* X apps don't like 24bpp images, this code exposes 32bpp images */ |
| 33 | |
| 34 | /* |
| 35 | * These two functions do a full CopyArea while reformatting |
| 36 | * the data between 24 and 32bpp. They try to go a bit faster |
| 37 | * by reading/writing aligned CARD32s where it's easy |
| 38 | */ |
| 39 | |
| 40 | #define Get8(a) ((CARD32) READ(a)) |
| 41 | |
| 42 | #if BITMAP_BIT_ORDER == MSBFirst |
| 43 | #define Get24(a) ((Get8(a) << 16) | (Get8((a)+1) << 8) | Get8((a)+2)) |
| 44 | #define Put24(a,p) ((WRITE((a+0), (CARD8) ((p) >> 16))), \ |
| 45 | (WRITE((a+1), (CARD8) ((p) >> 8))), \ |
| 46 | (WRITE((a+2), (CARD8) (p)))) |
| 47 | #else |
| 48 | #define Get24(a) (Get8(a) | (Get8((a)+1) << 8) | (Get8((a)+2)<<16)) |
| 49 | #define Put24(a,p) ((WRITE((a+0), (CARD8) (p))), \ |
| 50 | (WRITE((a+1), (CARD8) ((p) >> 8))), \ |
| 51 | (WRITE((a+2), (CARD8) ((p) >> 16)))) |
| 52 | #endif |
| 53 | |
| 54 | typedef void (*fb24_32BltFunc) (CARD8 *srcLine, |
| 55 | FbStride srcStride, |
| 56 | int srcX, |
| 57 | CARD8 *dstLine, |
| 58 | FbStride dstStride, |
| 59 | int dstX, |
| 60 | int width, int height, int alu, FbBits pm); |
| 61 | |
| 62 | static void |
| 63 | fb24_32BltDown(CARD8 *srcLine, |
| 64 | FbStride srcStride, |
| 65 | int srcX, |
| 66 | CARD8 *dstLine, |
| 67 | FbStride dstStride, |
| 68 | int dstX, int width, int height, int alu, FbBits pm) |
| 69 | { |
| 70 | CARD32 *src; |
| 71 | CARD8 *dst; |
| 72 | int w; |
| 73 | Bool destInvarient; |
| 74 | CARD32 pixel, dpixel; |
| 75 | |
| 76 | FbDeclareMergeRop(); |
| 77 | |
| 78 | srcLine += srcX * 4; |
| 79 | dstLine += dstX * 3; |
| 80 | |
| 81 | FbInitializeMergeRop(alu, (pm | ~(FbBits) 0xffffff)); |
| 82 | destInvarient = FbDestInvarientMergeRop(); |
| 83 | |
| 84 | while (height--) { |
| 85 | src = (CARD32 *) srcLine; |
| 86 | dst = dstLine; |
| 87 | srcLine += srcStride; |
| 88 | dstLine += dstStride; |
| 89 | w = width; |
| 90 | if (destInvarient) { |
| 91 | while (((long) dst & 3) && w) { |
| 92 | w--; |
| 93 | pixel = READ(src++); |
| 94 | pixel = FbDoDestInvarientMergeRop(pixel); |
| 95 | Put24(dst, pixel); |
| 96 | dst += 3; |
| 97 | } |
| 98 | /* Do four aligned pixels at a time */ |
| 99 | while (w >= 4) { |
| 100 | CARD32 s0, s1; |
| 101 | |
| 102 | s0 = READ(src++); |
| 103 | s0 = FbDoDestInvarientMergeRop(s0); |
| 104 | s1 = READ(src++); |
| 105 | s1 = FbDoDestInvarientMergeRop(s1); |
| 106 | #if BITMAP_BIT_ORDER == LSBFirst |
| 107 | WRITE((CARD32 *) dst, (s0 & 0xffffff) | (s1 << 24)); |
| 108 | #else |
| 109 | WRITE((CARD32 *) dst, (s0 << 8) | ((s1 & 0xffffff) >> 16)); |
| 110 | #endif |
| 111 | s0 = READ(src++); |
| 112 | s0 = FbDoDestInvarientMergeRop(s0); |
| 113 | #if BITMAP_BIT_ORDER == LSBFirst |
| 114 | WRITE((CARD32 *) (dst + 4), |
| 115 | ((s1 & 0xffffff) >> 8) | (s0 << 16)); |
| 116 | #else |
| 117 | WRITE((CARD32 *) (dst + 4), |
| 118 | (s1 << 16) | ((s0 & 0xffffff) >> 8)); |
| 119 | #endif |
| 120 | s1 = READ(src++); |
| 121 | s1 = FbDoDestInvarientMergeRop(s1); |
| 122 | #if BITMAP_BIT_ORDER == LSBFirst |
| 123 | WRITE((CARD32 *) (dst + 8), |
| 124 | ((s0 & 0xffffff) >> 16) | (s1 << 8)); |
| 125 | #else |
| 126 | WRITE((CARD32 *) (dst + 8), (s0 << 24) | (s1 & 0xffffff)); |
| 127 | #endif |
| 128 | dst += 12; |
| 129 | w -= 4; |
| 130 | } |
| 131 | while (w--) { |
| 132 | pixel = READ(src++); |
| 133 | pixel = FbDoDestInvarientMergeRop(pixel); |
| 134 | Put24(dst, pixel); |
| 135 | dst += 3; |
| 136 | } |
| 137 | } |
| 138 | else { |
| 139 | while (w--) { |
| 140 | pixel = READ(src++); |
| 141 | dpixel = Get24(dst); |
| 142 | pixel = FbDoMergeRop(pixel, dpixel); |
| 143 | Put24(dst, pixel); |
| 144 | dst += 3; |
| 145 | } |
| 146 | } |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | static void |
| 151 | fb24_32BltUp(CARD8 *srcLine, |
| 152 | FbStride srcStride, |
| 153 | int srcX, |
| 154 | CARD8 *dstLine, |
| 155 | FbStride dstStride, |
| 156 | int dstX, int width, int height, int alu, FbBits pm) |
| 157 | { |
| 158 | CARD8 *src; |
| 159 | CARD32 *dst; |
| 160 | int w; |
| 161 | Bool destInvarient; |
| 162 | CARD32 pixel; |
| 163 | |
| 164 | FbDeclareMergeRop(); |
| 165 | |
| 166 | FbInitializeMergeRop(alu, (pm | (~(FbBits) 0xffffff))); |
| 167 | destInvarient = FbDestInvarientMergeRop(); |
| 168 | |
| 169 | srcLine += srcX * 3; |
| 170 | dstLine += dstX * 4; |
| 171 | |
| 172 | while (height--) { |
| 173 | w = width; |
| 174 | src = srcLine; |
| 175 | dst = (CARD32 *) dstLine; |
| 176 | srcLine += srcStride; |
| 177 | dstLine += dstStride; |
| 178 | if (destInvarient) { |
| 179 | while (((long) src & 3) && w) { |
| 180 | w--; |
| 181 | pixel = Get24(src); |
| 182 | src += 3; |
| 183 | WRITE(dst++, FbDoDestInvarientMergeRop(pixel)); |
| 184 | } |
| 185 | /* Do four aligned pixels at a time */ |
| 186 | while (w >= 4) { |
| 187 | CARD32 s0, s1; |
| 188 | |
| 189 | s0 = READ((CARD32 *) src); |
| 190 | #if BITMAP_BIT_ORDER == LSBFirst |
| 191 | pixel = s0 & 0xffffff; |
| 192 | #else |
| 193 | pixel = s0 >> 8; |
| 194 | #endif |
| 195 | WRITE(dst++, FbDoDestInvarientMergeRop(pixel)); |
| 196 | s1 = READ((CARD32 *) (src + 4)); |
| 197 | #if BITMAP_BIT_ORDER == LSBFirst |
| 198 | pixel = (s0 >> 24) | ((s1 << 8) & 0xffffff); |
| 199 | #else |
| 200 | pixel = ((s0 << 16) & 0xffffff) | (s1 >> 16); |
| 201 | #endif |
| 202 | WRITE(dst++, FbDoDestInvarientMergeRop(pixel)); |
| 203 | s0 = READ((CARD32 *) (src + 8)); |
| 204 | #if BITMAP_BIT_ORDER == LSBFirst |
| 205 | pixel = (s1 >> 16) | ((s0 << 16) & 0xffffff); |
| 206 | #else |
| 207 | pixel = ((s1 << 8) & 0xffffff) | (s0 >> 24); |
| 208 | #endif |
| 209 | WRITE(dst++, FbDoDestInvarientMergeRop(pixel)); |
| 210 | #if BITMAP_BIT_ORDER == LSBFirst |
| 211 | pixel = s0 >> 8; |
| 212 | #else |
| 213 | pixel = s0 & 0xffffff; |
| 214 | #endif |
| 215 | WRITE(dst++, FbDoDestInvarientMergeRop(pixel)); |
| 216 | src += 12; |
| 217 | w -= 4; |
| 218 | } |
| 219 | while (w) { |
| 220 | w--; |
| 221 | pixel = Get24(src); |
| 222 | src += 3; |
| 223 | WRITE(dst++, FbDoDestInvarientMergeRop(pixel)); |
| 224 | } |
| 225 | } |
| 226 | else { |
| 227 | while (w--) { |
| 228 | pixel = Get24(src); |
| 229 | src += 3; |
| 230 | WRITE(dst, FbDoMergeRop(pixel, READ(dst))); |
| 231 | dst++; |
| 232 | } |
| 233 | } |
| 234 | } |
| 235 | } |
| 236 | |
| 237 | /* |
| 238 | * Spans functions; probably unused. |
| 239 | */ |
| 240 | void |
| 241 | fb24_32GetSpans(DrawablePtr pDrawable, |
| 242 | int wMax, |
| 243 | DDXPointPtr ppt, int *pwidth, int nspans, char *pchardstStart) |
| 244 | { |
| 245 | FbBits *srcBits; |
| 246 | CARD8 *src; |
| 247 | FbStride srcStride; |
| 248 | int srcBpp; |
| 249 | int srcXoff, srcYoff; |
| 250 | CARD8 *dst; |
| 251 | |
| 252 | fbGetDrawable(pDrawable, srcBits, srcStride, srcBpp, srcXoff, srcYoff); |
| 253 | src = (CARD8 *) srcBits; |
| 254 | srcStride *= sizeof(FbBits); |
| 255 | |
| 256 | while (nspans--) { |
| 257 | dst = (CARD8 *) pchardstStart; |
| 258 | fb24_32BltUp(src + (ppt->y + srcYoff) * srcStride, srcStride, |
| 259 | ppt->x + srcXoff, |
| 260 | dst, 1, 0, *pwidth, 1, GXcopy, FB_ALLONES); |
| 261 | |
| 262 | pchardstStart += PixmapBytePad(*pwidth, pDrawable->depth); |
| 263 | ppt++; |
| 264 | pwidth++; |
| 265 | } |
| 266 | |
| 267 | fbFinishAccess(pDrawable); |
| 268 | } |
| 269 | |
| 270 | void |
| 271 | fb24_32SetSpans(DrawablePtr pDrawable, |
| 272 | GCPtr pGC, |
| 273 | char *src, |
| 274 | DDXPointPtr ppt, int *pwidth, int nspans, int fSorted) |
| 275 | { |
| 276 | FbGCPrivPtr pPriv = fbGetGCPrivate(pGC); |
| 277 | RegionPtr pClip = fbGetCompositeClip(pGC); |
| 278 | FbBits *dstBits; |
| 279 | CARD8 *dst, *d, *s; |
| 280 | FbStride dstStride; |
| 281 | int dstBpp; |
| 282 | int dstXoff, dstYoff; |
| 283 | BoxPtr pbox; |
| 284 | int n; |
| 285 | int x1, x2; |
| 286 | |
| 287 | fbGetDrawable(pDrawable, dstBits, dstStride, dstBpp, dstXoff, dstYoff); |
| 288 | dst = (CARD8 *) dstBits; |
| 289 | dstStride *= sizeof(FbBits); |
| 290 | while (nspans--) { |
| 291 | d = dst + (ppt->y + dstYoff) * dstStride; |
| 292 | s = (CARD8 *) src; |
| 293 | n = RegionNumRects(pClip); |
| 294 | pbox = RegionRects(pClip); |
| 295 | while (n--) { |
| 296 | if (pbox->y1 > ppt->y) |
| 297 | break; |
| 298 | if (pbox->y2 > ppt->y) { |
| 299 | x1 = ppt->x; |
| 300 | x2 = x1 + *pwidth; |
| 301 | if (pbox->x1 > x1) |
| 302 | x1 = pbox->x1; |
| 303 | if (pbox->x2 < x2) |
| 304 | x2 = pbox->x2; |
| 305 | if (x1 < x2) |
| 306 | fb24_32BltDown(s, |
| 307 | 0, |
| 308 | (x1 - ppt->x), |
| 309 | d, |
| 310 | dstStride, |
| 311 | x1 + dstXoff, |
| 312 | (x2 - x1), 1, pGC->alu, pPriv->pm); |
| 313 | } |
| 314 | } |
| 315 | src += PixmapBytePad(*pwidth, pDrawable->depth); |
| 316 | ppt++; |
| 317 | pwidth++; |
| 318 | } |
| 319 | |
| 320 | fbFinishAccess(pDrawable); |
| 321 | } |
| 322 | |
| 323 | /* |
| 324 | * Clip and put 32bpp Z-format images to a 24bpp drawable |
| 325 | */ |
| 326 | void |
| 327 | fb24_32PutZImage(DrawablePtr pDrawable, |
| 328 | RegionPtr pClip, |
| 329 | int alu, |
| 330 | FbBits pm, |
| 331 | int x, |
| 332 | int y, int width, int height, CARD8 *src, FbStride srcStride) |
| 333 | { |
| 334 | FbBits *dstBits; |
| 335 | CARD8 *dst; |
| 336 | FbStride dstStride; |
| 337 | int dstBpp; |
| 338 | int dstXoff, dstYoff; |
| 339 | int nbox; |
| 340 | BoxPtr pbox; |
| 341 | int x1, y1, x2, y2; |
| 342 | |
| 343 | fbGetDrawable(pDrawable, dstBits, dstStride, dstBpp, dstXoff, dstYoff); |
| 344 | dstStride *= sizeof(FbBits); |
| 345 | dst = (CARD8 *) dstBits; |
| 346 | |
| 347 | for (nbox = RegionNumRects(pClip), |
| 348 | pbox = RegionRects(pClip); nbox--; pbox++) { |
| 349 | x1 = x; |
| 350 | y1 = y; |
| 351 | x2 = x + width; |
| 352 | y2 = y + height; |
| 353 | if (x1 < pbox->x1) |
| 354 | x1 = pbox->x1; |
| 355 | if (y1 < pbox->y1) |
| 356 | y1 = pbox->y1; |
| 357 | if (x2 > pbox->x2) |
| 358 | x2 = pbox->x2; |
| 359 | if (y2 > pbox->y2) |
| 360 | y2 = pbox->y2; |
| 361 | if (x1 >= x2 || y1 >= y2) |
| 362 | continue; |
| 363 | fb24_32BltDown(src + (y1 - y) * srcStride, |
| 364 | srcStride, |
| 365 | (x1 - x), |
| 366 | dst + (y1 + dstYoff) * dstStride, |
| 367 | dstStride, x1 + dstXoff, (x2 - x1), (y2 - y1), alu, pm); |
| 368 | } |
| 369 | |
| 370 | fbFinishAccess(pDrawable); |
| 371 | } |
| 372 | |
| 373 | void |
| 374 | fb24_32GetImage(DrawablePtr pDrawable, |
| 375 | int x, |
| 376 | int y, |
| 377 | int w, |
| 378 | int h, unsigned int format, unsigned long planeMask, char *d) |
| 379 | { |
| 380 | FbBits *srcBits; |
| 381 | CARD8 *src; |
| 382 | FbStride srcStride; |
| 383 | int srcBpp; |
| 384 | int srcXoff, srcYoff; |
| 385 | FbStride dstStride; |
| 386 | FbBits pm; |
| 387 | |
| 388 | fbGetDrawable(pDrawable, srcBits, srcStride, srcBpp, srcXoff, srcYoff); |
| 389 | src = (CARD8 *) srcBits; |
| 390 | srcStride *= sizeof(FbBits); |
| 391 | |
| 392 | x += pDrawable->x; |
| 393 | y += pDrawable->y; |
| 394 | |
| 395 | pm = fbReplicatePixel(planeMask, 32); |
| 396 | dstStride = PixmapBytePad(w, pDrawable->depth); |
| 397 | if (pm != FB_ALLONES) |
| 398 | memset(d, 0, dstStride * h); |
| 399 | fb24_32BltUp(src + (y + srcYoff) * srcStride, srcStride, x + srcXoff, |
| 400 | (CARD8 *) d, dstStride, 0, w, h, GXcopy, pm); |
| 401 | |
| 402 | fbFinishAccess(pDrawable); |
| 403 | } |
| 404 | |
| 405 | void |
| 406 | fb24_32CopyMtoN(DrawablePtr pSrcDrawable, |
| 407 | DrawablePtr pDstDrawable, |
| 408 | GCPtr pGC, |
| 409 | BoxPtr pbox, |
| 410 | int nbox, |
| 411 | int dx, |
| 412 | int dy, |
| 413 | Bool reverse, Bool upsidedown, Pixel bitplane, void *closure) |
| 414 | { |
| 415 | FbGCPrivPtr pPriv = fbGetGCPrivate(pGC); |
| 416 | FbBits *srcBits; |
| 417 | CARD8 *src; |
| 418 | FbStride srcStride; |
| 419 | int srcBpp; |
| 420 | FbBits *dstBits; |
| 421 | CARD8 *dst; |
| 422 | FbStride dstStride; |
| 423 | int dstBpp; |
| 424 | fb24_32BltFunc blt; |
| 425 | int srcXoff, srcYoff; |
| 426 | int dstXoff, dstYoff; |
| 427 | |
| 428 | fbGetDrawable(pSrcDrawable, srcBits, srcStride, srcBpp, srcXoff, srcYoff); |
| 429 | src = (CARD8 *) srcBits; |
| 430 | srcStride *= sizeof(FbBits); |
| 431 | fbGetDrawable(pDstDrawable, dstBits, dstStride, dstBpp, dstXoff, dstYoff); |
| 432 | dst = (CARD8 *) dstBits; |
| 433 | dstStride *= sizeof(FbBits); |
| 434 | if (srcBpp == 24) |
| 435 | blt = fb24_32BltUp; |
| 436 | else |
| 437 | blt = fb24_32BltDown; |
| 438 | |
| 439 | while (nbox--) { |
| 440 | (*blt) (src + (pbox->y1 + dy + srcYoff) * srcStride, |
| 441 | srcStride, |
| 442 | (pbox->x1 + dx + srcXoff), |
| 443 | dst + (pbox->y1 + dstYoff) * dstStride, |
| 444 | dstStride, |
| 445 | (pbox->x1 + dstXoff), |
| 446 | (pbox->x2 - pbox->x1), |
| 447 | (pbox->y2 - pbox->y1), pGC->alu, pPriv->pm); |
| 448 | pbox++; |
| 449 | } |
| 450 | |
| 451 | fbFinishAccess(pSrcDrawable); |
| 452 | fbFinishAccess(pDstDrawable); |
| 453 | } |
| 454 | |
| 455 | PixmapPtr |
| 456 | fb24_32ReformatTile(PixmapPtr pOldTile, int bitsPerPixel) |
| 457 | { |
| 458 | ScreenPtr pScreen = pOldTile->drawable.pScreen; |
| 459 | PixmapPtr pNewTile; |
| 460 | FbBits *old, *new; |
| 461 | FbStride oldStride, newStride; |
| 462 | int oldBpp, newBpp; |
| 463 | fb24_32BltFunc blt; |
| 464 | _X_UNUSED int oldXoff, oldYoff; |
| 465 | _X_UNUSED int newXoff, newYoff; |
| 466 | |
| 467 | pNewTile = pScreen->CreatePixmap(pScreen, pOldTile->drawable.width, |
| 468 | pOldTile->drawable.height, |
| 469 | pOldTile->drawable.depth, |
| 470 | pOldTile->usage_hint); |
| 471 | if (!pNewTile) |
| 472 | return 0; |
| 473 | fbGetDrawable(&pOldTile->drawable, |
| 474 | old, oldStride, oldBpp, oldXoff, oldYoff); |
| 475 | fbGetDrawable(&pNewTile->drawable, |
| 476 | new, newStride, newBpp, newXoff, newYoff); |
| 477 | if (oldBpp == 24) |
| 478 | blt = fb24_32BltUp; |
| 479 | else |
| 480 | blt = fb24_32BltDown; |
| 481 | |
| 482 | (*blt) ((CARD8 *) old, |
| 483 | oldStride * sizeof(FbBits), |
| 484 | 0, |
| 485 | (CARD8 *) new, |
| 486 | newStride * sizeof(FbBits), |
| 487 | 0, |
| 488 | pOldTile->drawable.width, |
| 489 | pOldTile->drawable.height, GXcopy, FB_ALLONES); |
| 490 | |
| 491 | fbFinishAccess(&pOldTile->drawable); |
| 492 | fbFinishAccess(&pNewTile->drawable); |
| 493 | |
| 494 | return pNewTile; |
| 495 | } |
| 496 | |
| 497 | typedef struct { |
| 498 | pointer pbits; |
| 499 | int width; |
| 500 | } miScreenInitParmsRec, *miScreenInitParmsPtr; |
| 501 | |
| 502 | Bool |
| 503 | fb24_32CreateScreenResources(ScreenPtr pScreen) |
| 504 | { |
| 505 | miScreenInitParmsPtr pScrInitParms; |
| 506 | int pitch; |
| 507 | Bool retval; |
| 508 | |
| 509 | /* get the pitch before mi destroys it */ |
| 510 | pScrInitParms = (miScreenInitParmsPtr) pScreen->devPrivate; |
| 511 | pitch = BitmapBytePad(pScrInitParms->width * 24); |
| 512 | |
| 513 | if ((retval = miCreateScreenResources(pScreen))) { |
| 514 | /* fix the screen pixmap */ |
| 515 | PixmapPtr pPix = (PixmapPtr) pScreen->devPrivate; |
| 516 | |
| 517 | pPix->drawable.bitsPerPixel = 24; |
| 518 | pPix->devKind = pitch; |
| 519 | } |
| 520 | |
| 521 | return retval; |
| 522 | } |
| 523 | |
| 524 | Bool |
| 525 | fb24_32ModifyPixmapHeader(PixmapPtr pPixmap, |
| 526 | int width, |
| 527 | int height, |
| 528 | int depth, |
| 529 | int bitsPerPixel, int devKind, pointer pPixData) |
| 530 | { |
| 531 | int bpp, w; |
| 532 | |
| 533 | if (!pPixmap) |
| 534 | return FALSE; |
| 535 | bpp = bitsPerPixel; |
| 536 | if (bpp <= 0) |
| 537 | bpp = pPixmap->drawable.bitsPerPixel; |
| 538 | if (bpp == 24) { |
| 539 | if (devKind < 0) { |
| 540 | w = width; |
| 541 | if (w <= 0) |
| 542 | w = pPixmap->drawable.width; |
| 543 | devKind = BitmapBytePad(w * 24); |
| 544 | } |
| 545 | } |
| 546 | return miModifyPixmapHeader(pPixmap, width, height, depth, bitsPerPixel, |
| 547 | devKind, pPixData); |
| 548 | } |