| 1 | |
| 2 | #ifdef HAVE_XORG_CONFIG_H |
| 3 | #include <xorg-config.h> |
| 4 | #endif |
| 5 | |
| 6 | #include <string.h> |
| 7 | |
| 8 | #include "misc.h" |
| 9 | #include "xf86.h" |
| 10 | #include "xf86_OSproc.h" |
| 11 | |
| 12 | #include <X11/X.h> |
| 13 | #include "scrnintstr.h" |
| 14 | #include "pixmapstr.h" |
| 15 | #include "windowstr.h" |
| 16 | #include "xf86str.h" |
| 17 | #include "cursorstr.h" |
| 18 | #include "mi.h" |
| 19 | #include "mipointer.h" |
| 20 | #include "xf86CursorPriv.h" |
| 21 | |
| 22 | #include "servermd.h" |
| 23 | |
| 24 | static CARD32 |
| 25 | xf86ReverseBitOrder(CARD32 v) |
| 26 | { |
| 27 | return (((0x01010101 & v) << 7) | ((0x02020202 & v) << 5) | |
| 28 | ((0x04040404 & v) << 3) | ((0x08080808 & v) << 1) | |
| 29 | ((0x10101010 & v) >> 1) | ((0x20202020 & v) >> 3) | |
| 30 | ((0x40404040 & v) >> 5) | ((0x80808080 & v) >> 7)); |
| 31 | } |
| 32 | |
| 33 | #if BITMAP_SCANLINE_PAD == 64 |
| 34 | |
| 35 | #if 1 |
| 36 | /* Cursors might be only 32 wide. Give'em a chance */ |
| 37 | #define SCANLINE CARD32 |
| 38 | #define CUR_BITMAP_SCANLINE_PAD 32 |
| 39 | #define CUR_LOG2_BITMAP_PAD 5 |
| 40 | #define REVERSE_BIT_ORDER(w) xf86ReverseBitOrder(w) |
| 41 | #else |
| 42 | #define SCANLINE CARD64 |
| 43 | #define CUR_BITMAP_SCANLINE_PAD BITMAP_SCANLINE_PAD |
| 44 | #define CUR_LOG2_BITMAP_PAD LOG2_BITMAP_PAD |
| 45 | #define REVERSE_BIT_ORDER(w) xf86CARD64ReverseBits(w) |
| 46 | static CARD64 xf86CARD64ReverseBits(CARD64 w); |
| 47 | |
| 48 | static CARD64 |
| 49 | xf86CARD64ReverseBits(CARD64 w) |
| 50 | { |
| 51 | unsigned char *p = (unsigned char *) &w; |
| 52 | |
| 53 | p[0] = byte_reversed[p[0]]; |
| 54 | p[1] = byte_reversed[p[1]]; |
| 55 | p[2] = byte_reversed[p[2]]; |
| 56 | p[3] = byte_reversed[p[3]]; |
| 57 | p[4] = byte_reversed[p[4]]; |
| 58 | p[5] = byte_reversed[p[5]]; |
| 59 | p[6] = byte_reversed[p[6]]; |
| 60 | p[7] = byte_reversed[p[7]]; |
| 61 | |
| 62 | return w; |
| 63 | } |
| 64 | #endif |
| 65 | |
| 66 | #else |
| 67 | |
| 68 | #define SCANLINE CARD32 |
| 69 | #define CUR_BITMAP_SCANLINE_PAD BITMAP_SCANLINE_PAD |
| 70 | #define CUR_LOG2_BITMAP_PAD LOG2_BITMAP_PAD |
| 71 | #define REVERSE_BIT_ORDER(w) xf86ReverseBitOrder(w) |
| 72 | |
| 73 | #endif /* BITMAP_SCANLINE_PAD == 64 */ |
| 74 | |
| 75 | static unsigned char *RealizeCursorInterleave0(xf86CursorInfoPtr, CursorPtr); |
| 76 | static unsigned char *RealizeCursorInterleave1(xf86CursorInfoPtr, CursorPtr); |
| 77 | static unsigned char *RealizeCursorInterleave8(xf86CursorInfoPtr, CursorPtr); |
| 78 | static unsigned char *RealizeCursorInterleave16(xf86CursorInfoPtr, CursorPtr); |
| 79 | static unsigned char *RealizeCursorInterleave32(xf86CursorInfoPtr, CursorPtr); |
| 80 | static unsigned char *RealizeCursorInterleave64(xf86CursorInfoPtr, CursorPtr); |
| 81 | |
| 82 | Bool |
| 83 | xf86InitHardwareCursor(ScreenPtr pScreen, xf86CursorInfoPtr infoPtr) |
| 84 | { |
| 85 | if ((infoPtr->MaxWidth <= 0) || (infoPtr->MaxHeight <= 0)) |
| 86 | return FALSE; |
| 87 | |
| 88 | /* These are required for now */ |
| 89 | if (!infoPtr->SetCursorPosition || |
| 90 | !infoPtr->LoadCursorImage || |
| 91 | !infoPtr->HideCursor || |
| 92 | !infoPtr->ShowCursor || !infoPtr->SetCursorColors) |
| 93 | return FALSE; |
| 94 | |
| 95 | if (infoPtr->RealizeCursor) { |
| 96 | /* Don't overwrite a driver provided Realize Cursor function */ |
| 97 | } |
| 98 | else if (HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_1 & infoPtr->Flags) { |
| 99 | infoPtr->RealizeCursor = RealizeCursorInterleave1; |
| 100 | } |
| 101 | else if (HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_8 & infoPtr->Flags) { |
| 102 | infoPtr->RealizeCursor = RealizeCursorInterleave8; |
| 103 | } |
| 104 | else if (HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_16 & infoPtr->Flags) { |
| 105 | infoPtr->RealizeCursor = RealizeCursorInterleave16; |
| 106 | } |
| 107 | else if (HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_32 & infoPtr->Flags) { |
| 108 | infoPtr->RealizeCursor = RealizeCursorInterleave32; |
| 109 | } |
| 110 | else if (HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64 & infoPtr->Flags) { |
| 111 | infoPtr->RealizeCursor = RealizeCursorInterleave64; |
| 112 | } |
| 113 | else { /* not interleaved */ |
| 114 | infoPtr->RealizeCursor = RealizeCursorInterleave0; |
| 115 | } |
| 116 | |
| 117 | infoPtr->pScrn = xf86ScreenToScrn(pScreen); |
| 118 | |
| 119 | return TRUE; |
| 120 | } |
| 121 | |
| 122 | void |
| 123 | xf86SetCursor(ScreenPtr pScreen, CursorPtr pCurs, int x, int y) |
| 124 | { |
| 125 | xf86CursorScreenPtr ScreenPriv = |
| 126 | (xf86CursorScreenPtr) dixLookupPrivate(&pScreen->devPrivates, |
| 127 | xf86CursorScreenKey); |
| 128 | xf86CursorInfoPtr infoPtr = ScreenPriv->CursorInfoPtr; |
| 129 | unsigned char *bits; |
| 130 | |
| 131 | if (pCurs == NullCursor) { |
| 132 | (*infoPtr->HideCursor) (infoPtr->pScrn); |
| 133 | return; |
| 134 | } |
| 135 | |
| 136 | bits = |
| 137 | dixLookupScreenPrivate(&pCurs->devPrivates, CursorScreenKey, pScreen); |
| 138 | |
| 139 | x -= infoPtr->pScrn->frameX0 + ScreenPriv->HotX; |
| 140 | y -= infoPtr->pScrn->frameY0 + ScreenPriv->HotY; |
| 141 | |
| 142 | #ifdef ARGB_CURSOR |
| 143 | if (!pCurs->bits->argb || !infoPtr->LoadCursorARGB) |
| 144 | #endif |
| 145 | if (!bits) { |
| 146 | bits = (*infoPtr->RealizeCursor) (infoPtr, pCurs); |
| 147 | dixSetScreenPrivate(&pCurs->devPrivates, CursorScreenKey, pScreen, |
| 148 | bits); |
| 149 | } |
| 150 | |
| 151 | if (!(infoPtr->Flags & HARDWARE_CURSOR_UPDATE_UNHIDDEN)) |
| 152 | (*infoPtr->HideCursor) (infoPtr->pScrn); |
| 153 | |
| 154 | #ifdef ARGB_CURSOR |
| 155 | if (pCurs->bits->argb && infoPtr->LoadCursorARGB) |
| 156 | (*infoPtr->LoadCursorARGB) (infoPtr->pScrn, pCurs); |
| 157 | else |
| 158 | #endif |
| 159 | if (bits) |
| 160 | (*infoPtr->LoadCursorImage) (infoPtr->pScrn, bits); |
| 161 | |
| 162 | xf86RecolorCursor(pScreen, pCurs, 1); |
| 163 | |
| 164 | (*infoPtr->SetCursorPosition) (infoPtr->pScrn, x, y); |
| 165 | |
| 166 | (*infoPtr->ShowCursor) (infoPtr->pScrn); |
| 167 | } |
| 168 | |
| 169 | void |
| 170 | xf86SetTransparentCursor(ScreenPtr pScreen) |
| 171 | { |
| 172 | xf86CursorScreenPtr ScreenPriv = |
| 173 | (xf86CursorScreenPtr) dixLookupPrivate(&pScreen->devPrivates, |
| 174 | xf86CursorScreenKey); |
| 175 | xf86CursorInfoPtr infoPtr = ScreenPriv->CursorInfoPtr; |
| 176 | |
| 177 | if (!ScreenPriv->transparentData) |
| 178 | ScreenPriv->transparentData = |
| 179 | (*infoPtr->RealizeCursor) (infoPtr, NullCursor); |
| 180 | |
| 181 | if (!(infoPtr->Flags & HARDWARE_CURSOR_UPDATE_UNHIDDEN)) |
| 182 | (*infoPtr->HideCursor) (infoPtr->pScrn); |
| 183 | |
| 184 | if (ScreenPriv->transparentData) |
| 185 | (*infoPtr->LoadCursorImage) (infoPtr->pScrn, |
| 186 | ScreenPriv->transparentData); |
| 187 | |
| 188 | (*infoPtr->ShowCursor) (infoPtr->pScrn); |
| 189 | } |
| 190 | |
| 191 | void |
| 192 | xf86MoveCursor(ScreenPtr pScreen, int x, int y) |
| 193 | { |
| 194 | xf86CursorScreenPtr ScreenPriv = |
| 195 | (xf86CursorScreenPtr) dixLookupPrivate(&pScreen->devPrivates, |
| 196 | xf86CursorScreenKey); |
| 197 | xf86CursorInfoPtr infoPtr = ScreenPriv->CursorInfoPtr; |
| 198 | |
| 199 | x -= infoPtr->pScrn->frameX0 + ScreenPriv->HotX; |
| 200 | y -= infoPtr->pScrn->frameY0 + ScreenPriv->HotY; |
| 201 | |
| 202 | (*infoPtr->SetCursorPosition) (infoPtr->pScrn, x, y); |
| 203 | } |
| 204 | |
| 205 | void |
| 206 | xf86RecolorCursor(ScreenPtr pScreen, CursorPtr pCurs, Bool displayed) |
| 207 | { |
| 208 | xf86CursorScreenPtr ScreenPriv = |
| 209 | (xf86CursorScreenPtr) dixLookupPrivate(&pScreen->devPrivates, |
| 210 | xf86CursorScreenKey); |
| 211 | xf86CursorInfoPtr infoPtr = ScreenPriv->CursorInfoPtr; |
| 212 | |
| 213 | #ifdef ARGB_CURSOR |
| 214 | /* recoloring isn't applicable to ARGB cursors and drivers |
| 215 | shouldn't have to ignore SetCursorColors requests */ |
| 216 | if (pCurs->bits->argb) |
| 217 | return; |
| 218 | #endif |
| 219 | |
| 220 | if (ScreenPriv->PalettedCursor) { |
| 221 | xColorItem sourceColor, maskColor; |
| 222 | ColormapPtr pmap = ScreenPriv->pInstalledMap; |
| 223 | |
| 224 | if (!pmap) |
| 225 | return; |
| 226 | |
| 227 | sourceColor.red = pCurs->foreRed; |
| 228 | sourceColor.green = pCurs->foreGreen; |
| 229 | sourceColor.blue = pCurs->foreBlue; |
| 230 | FakeAllocColor(pmap, &sourceColor); |
| 231 | maskColor.red = pCurs->backRed; |
| 232 | maskColor.green = pCurs->backGreen; |
| 233 | maskColor.blue = pCurs->backBlue; |
| 234 | FakeAllocColor(pmap, &maskColor); |
| 235 | FakeFreeColor(pmap, sourceColor.pixel); |
| 236 | FakeFreeColor(pmap, maskColor.pixel); |
| 237 | (*infoPtr->SetCursorColors) (infoPtr->pScrn, |
| 238 | maskColor.pixel, sourceColor.pixel); |
| 239 | } |
| 240 | else { /* Pass colors in 8-8-8 RGB format */ |
| 241 | (*infoPtr->SetCursorColors) (infoPtr->pScrn, |
| 242 | (pCurs->backBlue >> 8) | |
| 243 | ((pCurs->backGreen >> 8) << 8) | |
| 244 | ((pCurs->backRed >> 8) << 16), |
| 245 | (pCurs->foreBlue >> 8) | |
| 246 | ((pCurs->foreGreen >> 8) << 8) | |
| 247 | ((pCurs->foreRed >> 8) << 16) |
| 248 | ); |
| 249 | } |
| 250 | } |
| 251 | |
| 252 | /* These functions assume that MaxWidth is a multiple of 32 */ |
| 253 | static unsigned char * |
| 254 | RealizeCursorInterleave0(xf86CursorInfoPtr infoPtr, CursorPtr pCurs) |
| 255 | { |
| 256 | |
| 257 | SCANLINE *SrcS, *SrcM, *DstS, *DstM; |
| 258 | SCANLINE *pSrc, *pMsk; |
| 259 | unsigned char *mem; |
| 260 | int size = (infoPtr->MaxWidth * infoPtr->MaxHeight) >> 2; |
| 261 | int SrcPitch, DstPitch, Pitch, y, x; |
| 262 | |
| 263 | /* how many words are in the source or mask */ |
| 264 | int words = size / (CUR_BITMAP_SCANLINE_PAD / 4); |
| 265 | |
| 266 | if (!(mem = calloc(1, size))) |
| 267 | return NULL; |
| 268 | |
| 269 | if (pCurs == NullCursor) { |
| 270 | if (infoPtr->Flags & HARDWARE_CURSOR_INVERT_MASK) { |
| 271 | DstM = (SCANLINE *) mem; |
| 272 | if (!(infoPtr->Flags & HARDWARE_CURSOR_SWAP_SOURCE_AND_MASK)) |
| 273 | DstM += words; |
| 274 | memset(DstM, -1, words * sizeof(SCANLINE)); |
| 275 | } |
| 276 | return mem; |
| 277 | } |
| 278 | |
| 279 | /* SrcPitch == the number of scanlines wide the cursor image is */ |
| 280 | SrcPitch = (pCurs->bits->width + (BITMAP_SCANLINE_PAD - 1)) >> |
| 281 | CUR_LOG2_BITMAP_PAD; |
| 282 | |
| 283 | /* DstPitch is the width of the hw cursor in scanlines */ |
| 284 | DstPitch = infoPtr->MaxWidth >> CUR_LOG2_BITMAP_PAD; |
| 285 | Pitch = SrcPitch < DstPitch ? SrcPitch : DstPitch; |
| 286 | |
| 287 | SrcS = (SCANLINE *) pCurs->bits->source; |
| 288 | SrcM = (SCANLINE *) pCurs->bits->mask; |
| 289 | DstS = (SCANLINE *) mem; |
| 290 | DstM = DstS + words; |
| 291 | |
| 292 | if (infoPtr->Flags & HARDWARE_CURSOR_SWAP_SOURCE_AND_MASK) { |
| 293 | SCANLINE *tmp; |
| 294 | |
| 295 | tmp = DstS; |
| 296 | DstS = DstM; |
| 297 | DstM = tmp; |
| 298 | } |
| 299 | |
| 300 | if (infoPtr->Flags & HARDWARE_CURSOR_AND_SOURCE_WITH_MASK) { |
| 301 | for (y = pCurs->bits->height, pSrc = DstS, pMsk = DstM; |
| 302 | y--; |
| 303 | pSrc += DstPitch, pMsk += DstPitch, SrcS += SrcPitch, SrcM += |
| 304 | SrcPitch) { |
| 305 | for (x = 0; x < Pitch; x++) { |
| 306 | pSrc[x] = SrcS[x] & SrcM[x]; |
| 307 | pMsk[x] = SrcM[x]; |
| 308 | } |
| 309 | } |
| 310 | } |
| 311 | else { |
| 312 | for (y = pCurs->bits->height, pSrc = DstS, pMsk = DstM; |
| 313 | y--; |
| 314 | pSrc += DstPitch, pMsk += DstPitch, SrcS += SrcPitch, SrcM += |
| 315 | SrcPitch) { |
| 316 | for (x = 0; x < Pitch; x++) { |
| 317 | pSrc[x] = SrcS[x]; |
| 318 | pMsk[x] = SrcM[x]; |
| 319 | } |
| 320 | } |
| 321 | } |
| 322 | |
| 323 | if (infoPtr->Flags & HARDWARE_CURSOR_NIBBLE_SWAPPED) { |
| 324 | int count = size; |
| 325 | unsigned char *pntr1 = (unsigned char *) DstS; |
| 326 | unsigned char *pntr2 = (unsigned char *) DstM; |
| 327 | unsigned char a, b; |
| 328 | |
| 329 | while (count) { |
| 330 | |
| 331 | a = *pntr1; |
| 332 | b = *pntr2; |
| 333 | *pntr1 = ((a & 0xF0) >> 4) | ((a & 0x0F) << 4); |
| 334 | *pntr2 = ((b & 0xF0) >> 4) | ((b & 0x0F) << 4); |
| 335 | pntr1++; |
| 336 | pntr2++; |
| 337 | count -= 2; |
| 338 | } |
| 339 | } |
| 340 | |
| 341 | /* |
| 342 | * Must be _after_ HARDWARE_CURSOR_AND_SOURCE_WITH_MASK to avoid wiping |
| 343 | * out entire source mask. |
| 344 | */ |
| 345 | if (infoPtr->Flags & HARDWARE_CURSOR_INVERT_MASK) { |
| 346 | int count = words; |
| 347 | SCANLINE *pntr = DstM; |
| 348 | |
| 349 | while (count--) { |
| 350 | *pntr = ~(*pntr); |
| 351 | pntr++; |
| 352 | } |
| 353 | } |
| 354 | |
| 355 | if (infoPtr->Flags & HARDWARE_CURSOR_BIT_ORDER_MSBFIRST) { |
| 356 | for (y = pCurs->bits->height, pSrc = DstS, pMsk = DstM; |
| 357 | y--; pSrc += DstPitch, pMsk += DstPitch) { |
| 358 | for (x = 0; x < Pitch; x++) { |
| 359 | pSrc[x] = REVERSE_BIT_ORDER(pSrc[x]); |
| 360 | pMsk[x] = REVERSE_BIT_ORDER(pMsk[x]); |
| 361 | } |
| 362 | } |
| 363 | } |
| 364 | |
| 365 | return mem; |
| 366 | } |
| 367 | |
| 368 | static unsigned char * |
| 369 | RealizeCursorInterleave1(xf86CursorInfoPtr infoPtr, CursorPtr pCurs) |
| 370 | { |
| 371 | unsigned char *DstS, *DstM; |
| 372 | unsigned char *pntr; |
| 373 | unsigned char *mem, *mem2; |
| 374 | int count; |
| 375 | int size = (infoPtr->MaxWidth * infoPtr->MaxHeight) >> 2; |
| 376 | |
| 377 | /* Realize the cursor without interleaving */ |
| 378 | if (!(mem2 = RealizeCursorInterleave0(infoPtr, pCurs))) |
| 379 | return NULL; |
| 380 | |
| 381 | if (!(mem = calloc(1, size))) { |
| 382 | free(mem2); |
| 383 | return NULL; |
| 384 | } |
| 385 | |
| 386 | /* 1 bit interleave */ |
| 387 | DstS = mem2; |
| 388 | DstM = DstS + (size >> 1); |
| 389 | pntr = mem; |
| 390 | count = size; |
| 391 | while (count) { |
| 392 | *pntr++ = ((*DstS & 0x01)) | ((*DstM & 0x01) << 1) | |
| 393 | ((*DstS & 0x02) << 1) | ((*DstM & 0x02) << 2) | |
| 394 | ((*DstS & 0x04) << 2) | ((*DstM & 0x04) << 3) | |
| 395 | ((*DstS & 0x08) << 3) | ((*DstM & 0x08) << 4); |
| 396 | *pntr++ = ((*DstS & 0x10) >> 4) | ((*DstM & 0x10) >> 3) | |
| 397 | ((*DstS & 0x20) >> 3) | ((*DstM & 0x20) >> 2) | |
| 398 | ((*DstS & 0x40) >> 2) | ((*DstM & 0x40) >> 1) | |
| 399 | ((*DstS & 0x80) >> 1) | ((*DstM & 0x80)); |
| 400 | DstS++; |
| 401 | DstM++; |
| 402 | count -= 2; |
| 403 | } |
| 404 | |
| 405 | /* Free the uninterleaved cursor */ |
| 406 | free(mem2); |
| 407 | |
| 408 | return mem; |
| 409 | } |
| 410 | |
| 411 | static unsigned char * |
| 412 | RealizeCursorInterleave8(xf86CursorInfoPtr infoPtr, CursorPtr pCurs) |
| 413 | { |
| 414 | unsigned char *DstS, *DstM; |
| 415 | unsigned char *pntr; |
| 416 | unsigned char *mem, *mem2; |
| 417 | int count; |
| 418 | int size = (infoPtr->MaxWidth * infoPtr->MaxHeight) >> 2; |
| 419 | |
| 420 | /* Realize the cursor without interleaving */ |
| 421 | if (!(mem2 = RealizeCursorInterleave0(infoPtr, pCurs))) |
| 422 | return NULL; |
| 423 | |
| 424 | if (!(mem = calloc(1, size))) { |
| 425 | free(mem2); |
| 426 | return NULL; |
| 427 | } |
| 428 | |
| 429 | /* 8 bit interleave */ |
| 430 | DstS = mem2; |
| 431 | DstM = DstS + (size >> 1); |
| 432 | pntr = mem; |
| 433 | count = size; |
| 434 | while (count) { |
| 435 | *pntr++ = *DstS++; |
| 436 | *pntr++ = *DstM++; |
| 437 | count -= 2; |
| 438 | } |
| 439 | |
| 440 | /* Free the uninterleaved cursor */ |
| 441 | free(mem2); |
| 442 | |
| 443 | return mem; |
| 444 | } |
| 445 | |
| 446 | static unsigned char * |
| 447 | RealizeCursorInterleave16(xf86CursorInfoPtr infoPtr, CursorPtr pCurs) |
| 448 | { |
| 449 | unsigned short *DstS, *DstM; |
| 450 | unsigned short *pntr; |
| 451 | unsigned char *mem, *mem2; |
| 452 | int count; |
| 453 | int size = (infoPtr->MaxWidth * infoPtr->MaxHeight) >> 2; |
| 454 | |
| 455 | /* Realize the cursor without interleaving */ |
| 456 | if (!(mem2 = RealizeCursorInterleave0(infoPtr, pCurs))) |
| 457 | return NULL; |
| 458 | |
| 459 | if (!(mem = calloc(1, size))) { |
| 460 | free(mem2); |
| 461 | return NULL; |
| 462 | } |
| 463 | |
| 464 | /* 16 bit interleave */ |
| 465 | DstS = (pointer) mem2; |
| 466 | DstM = DstS + (size >> 2); |
| 467 | pntr = (pointer) mem; |
| 468 | count = (size >> 1); |
| 469 | while (count) { |
| 470 | *pntr++ = *DstS++; |
| 471 | *pntr++ = *DstM++; |
| 472 | count -= 2; |
| 473 | } |
| 474 | |
| 475 | /* Free the uninterleaved cursor */ |
| 476 | free(mem2); |
| 477 | |
| 478 | return mem; |
| 479 | } |
| 480 | |
| 481 | static unsigned char * |
| 482 | RealizeCursorInterleave32(xf86CursorInfoPtr infoPtr, CursorPtr pCurs) |
| 483 | { |
| 484 | CARD32 *DstS, *DstM; |
| 485 | CARD32 *pntr; |
| 486 | unsigned char *mem, *mem2; |
| 487 | int count; |
| 488 | int size = (infoPtr->MaxWidth * infoPtr->MaxHeight) >> 2; |
| 489 | |
| 490 | /* Realize the cursor without interleaving */ |
| 491 | if (!(mem2 = RealizeCursorInterleave0(infoPtr, pCurs))) |
| 492 | return NULL; |
| 493 | |
| 494 | if (!(mem = calloc(1, size))) { |
| 495 | free(mem2); |
| 496 | return NULL; |
| 497 | } |
| 498 | |
| 499 | /* 32 bit interleave */ |
| 500 | DstS = (pointer) mem2; |
| 501 | DstM = DstS + (size >> 3); |
| 502 | pntr = (pointer) mem; |
| 503 | count = (size >> 2); |
| 504 | while (count) { |
| 505 | *pntr++ = *DstS++; |
| 506 | *pntr++ = *DstM++; |
| 507 | count -= 2; |
| 508 | } |
| 509 | |
| 510 | /* Free the uninterleaved cursor */ |
| 511 | free(mem2); |
| 512 | |
| 513 | return mem; |
| 514 | } |
| 515 | |
| 516 | static unsigned char * |
| 517 | RealizeCursorInterleave64(xf86CursorInfoPtr infoPtr, CursorPtr pCurs) |
| 518 | { |
| 519 | CARD32 *DstS, *DstM; |
| 520 | CARD32 *pntr; |
| 521 | unsigned char *mem, *mem2; |
| 522 | int count; |
| 523 | int size = (infoPtr->MaxWidth * infoPtr->MaxHeight) >> 2; |
| 524 | |
| 525 | /* Realize the cursor without interleaving */ |
| 526 | if (!(mem2 = RealizeCursorInterleave0(infoPtr, pCurs))) |
| 527 | return NULL; |
| 528 | |
| 529 | if (!(mem = calloc(1, size))) { |
| 530 | free(mem2); |
| 531 | return NULL; |
| 532 | } |
| 533 | |
| 534 | /* 64 bit interleave */ |
| 535 | DstS = (pointer) mem2; |
| 536 | DstM = DstS + (size >> 3); |
| 537 | pntr = (pointer) mem; |
| 538 | count = (size >> 2); |
| 539 | while (count) { |
| 540 | *pntr++ = *DstS++; |
| 541 | *pntr++ = *DstS++; |
| 542 | *pntr++ = *DstM++; |
| 543 | *pntr++ = *DstM++; |
| 544 | count -= 4; |
| 545 | } |
| 546 | |
| 547 | /* Free the uninterleaved cursor */ |
| 548 | free(mem2); |
| 549 | |
| 550 | return mem; |
| 551 | } |