| 1 | /* |
| 2 | * Copyright © 2007 Keith Packard |
| 3 | * Copyright © 2010-2011 Aaron Plattner |
| 4 | * |
| 5 | * Permission to use, copy, modify, distribute, and sell this software and its |
| 6 | * documentation for any purpose is hereby granted without fee, provided that |
| 7 | * the above copyright notice appear in all copies and that both that copyright |
| 8 | * notice and this permission notice appear in supporting documentation, and |
| 9 | * that the name of the copyright holders not be used in advertising or |
| 10 | * publicity pertaining to distribution of the software without specific, |
| 11 | * written prior permission. The copyright holders make no representations |
| 12 | * about the suitability of this software for any purpose. It is provided "as |
| 13 | * is" without express or implied warranty. |
| 14 | * |
| 15 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| 16 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| 17 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| 18 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| 19 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 20 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
| 21 | * OF THIS SOFTWARE. |
| 22 | */ |
| 23 | |
| 24 | #ifdef HAVE_XORG_CONFIG_H |
| 25 | #include <xorg-config.h> |
| 26 | #else |
| 27 | #ifdef HAVE_CONFIG_H |
| 28 | #include <config.h> |
| 29 | #endif |
| 30 | #endif |
| 31 | |
| 32 | #include <stddef.h> |
| 33 | #include <string.h> |
| 34 | #include <stdio.h> |
| 35 | |
| 36 | #include <X11/Xarch.h> |
| 37 | #include "xf86.h" |
| 38 | #include "xf86DDC.h" |
| 39 | #include "xf86Crtc.h" |
| 40 | #include "xf86Modes.h" |
| 41 | #include "xf86RandR12.h" |
| 42 | #include "xf86CursorPriv.h" |
| 43 | #include "X11/extensions/render.h" |
| 44 | #include "X11/extensions/dpmsconst.h" |
| 45 | #include "X11/Xatom.h" |
| 46 | #include "picturestr.h" |
| 47 | #include "cursorstr.h" |
| 48 | #include "inputstr.h" |
| 49 | |
| 50 | /* |
| 51 | * Returns the rotation being performed by the server. If the driver indicates |
| 52 | * that it's handling the screen transform, then this returns RR_Rotate_0. |
| 53 | */ |
| 54 | static Rotation |
| 55 | xf86_crtc_cursor_rotation(xf86CrtcPtr crtc) |
| 56 | { |
| 57 | if (crtc->driverIsPerformingTransform) |
| 58 | return RR_Rotate_0; |
| 59 | return crtc->rotation; |
| 60 | } |
| 61 | |
| 62 | /* |
| 63 | * Given a screen coordinate, rotate back to a cursor source coordinate |
| 64 | */ |
| 65 | static void |
| 66 | xf86_crtc_rotate_coord(Rotation rotation, |
| 67 | int width, |
| 68 | int height, int x_dst, int y_dst, int *x_src, int *y_src) |
| 69 | { |
| 70 | int t; |
| 71 | |
| 72 | switch (rotation & 0xf) { |
| 73 | case RR_Rotate_0: |
| 74 | break; |
| 75 | case RR_Rotate_90: |
| 76 | t = x_dst; |
| 77 | x_dst = height - y_dst - 1; |
| 78 | y_dst = t; |
| 79 | break; |
| 80 | case RR_Rotate_180: |
| 81 | x_dst = width - x_dst - 1; |
| 82 | y_dst = height - y_dst - 1; |
| 83 | break; |
| 84 | case RR_Rotate_270: |
| 85 | t = x_dst; |
| 86 | x_dst = y_dst; |
| 87 | y_dst = width - t - 1; |
| 88 | break; |
| 89 | } |
| 90 | if (rotation & RR_Reflect_X) |
| 91 | x_dst = width - x_dst - 1; |
| 92 | if (rotation & RR_Reflect_Y) |
| 93 | y_dst = height - y_dst - 1; |
| 94 | *x_src = x_dst; |
| 95 | *y_src = y_dst; |
| 96 | } |
| 97 | |
| 98 | /* |
| 99 | * Given a cursor source coordinate, rotate to a screen coordinate |
| 100 | */ |
| 101 | static void |
| 102 | xf86_crtc_rotate_coord_back(Rotation rotation, |
| 103 | int width, |
| 104 | int height, |
| 105 | int x_dst, int y_dst, int *x_src, int *y_src) |
| 106 | { |
| 107 | int t; |
| 108 | |
| 109 | if (rotation & RR_Reflect_X) |
| 110 | x_dst = width - x_dst - 1; |
| 111 | if (rotation & RR_Reflect_Y) |
| 112 | y_dst = height - y_dst - 1; |
| 113 | |
| 114 | switch (rotation & 0xf) { |
| 115 | case RR_Rotate_0: |
| 116 | break; |
| 117 | case RR_Rotate_90: |
| 118 | t = x_dst; |
| 119 | x_dst = y_dst; |
| 120 | y_dst = width - t - 1; |
| 121 | break; |
| 122 | case RR_Rotate_180: |
| 123 | x_dst = width - x_dst - 1; |
| 124 | y_dst = height - y_dst - 1; |
| 125 | break; |
| 126 | case RR_Rotate_270: |
| 127 | t = x_dst; |
| 128 | x_dst = height - y_dst - 1; |
| 129 | y_dst = t; |
| 130 | break; |
| 131 | } |
| 132 | *x_src = x_dst; |
| 133 | *y_src = y_dst; |
| 134 | } |
| 135 | |
| 136 | struct cursor_bit { |
| 137 | CARD8 *byte; |
| 138 | char bitpos; |
| 139 | }; |
| 140 | |
| 141 | /* |
| 142 | * Convert an x coordinate to a position within the cursor bitmap |
| 143 | */ |
| 144 | static struct cursor_bit |
| 145 | cursor_bitpos(CARD8 *image, xf86CursorInfoPtr cursor_info, int x, int y, |
| 146 | Bool mask) |
| 147 | { |
| 148 | const int flags = cursor_info->Flags; |
| 149 | const Bool interleaved = |
| 150 | ! !(flags & (HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_1 | |
| 151 | HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_8 | |
| 152 | HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_16 | |
| 153 | HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_32 | |
| 154 | HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64)); |
| 155 | const int width = cursor_info->MaxWidth; |
| 156 | const int height = cursor_info->MaxHeight; |
| 157 | const int stride = interleaved ? width / 4 : width / 8; |
| 158 | |
| 159 | struct cursor_bit ret; |
| 160 | |
| 161 | image += y * stride; |
| 162 | |
| 163 | if (flags & HARDWARE_CURSOR_SWAP_SOURCE_AND_MASK) |
| 164 | mask = !mask; |
| 165 | if (flags & HARDWARE_CURSOR_NIBBLE_SWAPPED) |
| 166 | x = (x & ~3) | (3 - (x & 3)); |
| 167 | if (((flags & HARDWARE_CURSOR_BIT_ORDER_MSBFIRST) == 0) == |
| 168 | (X_BYTE_ORDER == X_BIG_ENDIAN)) |
| 169 | x = (x & ~7) | (7 - (x & 7)); |
| 170 | if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_1) |
| 171 | x = (x << 1) + mask; |
| 172 | else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_8) |
| 173 | x = ((x & ~7) << 1) | (mask << 3) | (x & 7); |
| 174 | else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_16) |
| 175 | x = ((x & ~15) << 1) | (mask << 4) | (x & 15); |
| 176 | else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_32) |
| 177 | x = ((x & ~31) << 1) | (mask << 5) | (x & 31); |
| 178 | else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64) |
| 179 | x = ((x & ~63) << 1) | (mask << 6) | (x & 63); |
| 180 | else if (mask) |
| 181 | image += stride * height; |
| 182 | |
| 183 | ret.byte = image + (x / 8); |
| 184 | ret.bitpos = x & 7; |
| 185 | |
| 186 | return ret; |
| 187 | } |
| 188 | |
| 189 | /* |
| 190 | * Fetch one bit from a cursor bitmap |
| 191 | */ |
| 192 | static CARD8 |
| 193 | get_bit(CARD8 *image, xf86CursorInfoPtr cursor_info, int x, int y, Bool mask) |
| 194 | { |
| 195 | struct cursor_bit bit = cursor_bitpos(image, cursor_info, x, y, mask); |
| 196 | |
| 197 | return (*bit.byte >> bit.bitpos) & 1; |
| 198 | } |
| 199 | |
| 200 | /* |
| 201 | * Set one bit in a cursor bitmap |
| 202 | */ |
| 203 | static void |
| 204 | set_bit(CARD8 *image, xf86CursorInfoPtr cursor_info, int x, int y, Bool mask) |
| 205 | { |
| 206 | struct cursor_bit bit = cursor_bitpos(image, cursor_info, x, y, mask); |
| 207 | |
| 208 | *bit.byte |= 1 << bit.bitpos; |
| 209 | } |
| 210 | |
| 211 | /* |
| 212 | * Load a two color cursor into a driver that supports only ARGB cursors |
| 213 | */ |
| 214 | static void |
| 215 | xf86_crtc_convert_cursor_to_argb(xf86CrtcPtr crtc, unsigned char *src) |
| 216 | { |
| 217 | ScrnInfoPtr scrn = crtc->scrn; |
| 218 | xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 219 | xf86CursorInfoPtr cursor_info = xf86_config->cursor_info; |
| 220 | CARD32 *cursor_image = (CARD32 *) xf86_config->cursor_image; |
| 221 | int x, y; |
| 222 | int xin, yin; |
| 223 | int flags = cursor_info->Flags; |
| 224 | CARD32 bits; |
| 225 | const Rotation rotation = xf86_crtc_cursor_rotation(crtc); |
| 226 | |
| 227 | #ifdef ARGB_CURSOR |
| 228 | crtc->cursor_argb = FALSE; |
| 229 | #endif |
| 230 | |
| 231 | for (y = 0; y < cursor_info->MaxHeight; y++) |
| 232 | for (x = 0; x < cursor_info->MaxWidth; x++) { |
| 233 | xf86_crtc_rotate_coord(rotation, |
| 234 | cursor_info->MaxWidth, |
| 235 | cursor_info->MaxHeight, x, y, &xin, &yin); |
| 236 | if (get_bit(src, cursor_info, xin, yin, TRUE) == |
| 237 | ((flags & HARDWARE_CURSOR_INVERT_MASK) == 0)) { |
| 238 | if (get_bit(src, cursor_info, xin, yin, FALSE)) |
| 239 | bits = xf86_config->cursor_fg; |
| 240 | else |
| 241 | bits = xf86_config->cursor_bg; |
| 242 | } |
| 243 | else |
| 244 | bits = 0; |
| 245 | cursor_image[y * cursor_info->MaxWidth + x] = bits; |
| 246 | } |
| 247 | crtc->funcs->load_cursor_argb(crtc, cursor_image); |
| 248 | } |
| 249 | |
| 250 | /* |
| 251 | * Set the colors for a two-color cursor (ignore for ARGB cursors) |
| 252 | */ |
| 253 | static void |
| 254 | xf86_set_cursor_colors(ScrnInfoPtr scrn, int bg, int fg) |
| 255 | { |
| 256 | ScreenPtr screen = scrn->pScreen; |
| 257 | xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 258 | CursorPtr cursor = xf86_config->cursor; |
| 259 | int c; |
| 260 | CARD8 *bits = cursor ? |
| 261 | dixLookupScreenPrivate(&cursor->devPrivates, CursorScreenKey, screen) |
| 262 | : NULL; |
| 263 | |
| 264 | /* Save ARGB versions of these colors */ |
| 265 | xf86_config->cursor_fg = (CARD32) fg | 0xff000000; |
| 266 | xf86_config->cursor_bg = (CARD32) bg | 0xff000000; |
| 267 | |
| 268 | for (c = 0; c < xf86_config->num_crtc; c++) { |
| 269 | xf86CrtcPtr crtc = xf86_config->crtc[c]; |
| 270 | |
| 271 | if (crtc->enabled && !crtc->cursor_argb) { |
| 272 | if (crtc->funcs->load_cursor_image) |
| 273 | crtc->funcs->set_cursor_colors(crtc, bg, fg); |
| 274 | else if (bits) |
| 275 | xf86_crtc_convert_cursor_to_argb(crtc, bits); |
| 276 | } |
| 277 | } |
| 278 | } |
| 279 | |
| 280 | static void |
| 281 | xf86_crtc_hide_cursor(xf86CrtcPtr crtc) |
| 282 | { |
| 283 | if (crtc->cursor_shown) { |
| 284 | crtc->funcs->hide_cursor(crtc); |
| 285 | crtc->cursor_shown = FALSE; |
| 286 | } |
| 287 | } |
| 288 | |
| 289 | void |
| 290 | xf86_hide_cursors(ScrnInfoPtr scrn) |
| 291 | { |
| 292 | xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 293 | int c; |
| 294 | |
| 295 | xf86_config->cursor_on = FALSE; |
| 296 | for (c = 0; c < xf86_config->num_crtc; c++) { |
| 297 | xf86CrtcPtr crtc = xf86_config->crtc[c]; |
| 298 | |
| 299 | if (crtc->enabled) |
| 300 | xf86_crtc_hide_cursor(crtc); |
| 301 | } |
| 302 | } |
| 303 | |
| 304 | static void |
| 305 | xf86_crtc_show_cursor(xf86CrtcPtr crtc) |
| 306 | { |
| 307 | if (!crtc->cursor_shown && crtc->cursor_in_range) { |
| 308 | crtc->funcs->show_cursor(crtc); |
| 309 | crtc->cursor_shown = TRUE; |
| 310 | } |
| 311 | } |
| 312 | |
| 313 | void |
| 314 | xf86_show_cursors(ScrnInfoPtr scrn) |
| 315 | { |
| 316 | xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 317 | int c; |
| 318 | |
| 319 | xf86_config->cursor_on = TRUE; |
| 320 | for (c = 0; c < xf86_config->num_crtc; c++) { |
| 321 | xf86CrtcPtr crtc = xf86_config->crtc[c]; |
| 322 | |
| 323 | if (crtc->enabled) |
| 324 | xf86_crtc_show_cursor(crtc); |
| 325 | } |
| 326 | } |
| 327 | |
| 328 | void |
| 329 | xf86CrtcTransformCursorPos(xf86CrtcPtr crtc, int *x, int *y) |
| 330 | { |
| 331 | ScrnInfoPtr scrn = crtc->scrn; |
| 332 | ScreenPtr screen = scrn->pScreen; |
| 333 | xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 334 | xf86CursorInfoPtr cursor_info = xf86_config->cursor_info; |
| 335 | xf86CursorScreenPtr ScreenPriv = |
| 336 | (xf86CursorScreenPtr) dixLookupPrivate(&screen->devPrivates, |
| 337 | xf86CursorScreenKey); |
| 338 | struct pict_f_vector v; |
| 339 | int dx, dy; |
| 340 | |
| 341 | v.v[0] = (*x + ScreenPriv->HotX) + 0.5; |
| 342 | v.v[1] = (*y + ScreenPriv->HotY) + 0.5; |
| 343 | v.v[2] = 1; |
| 344 | pixman_f_transform_point(&crtc->f_framebuffer_to_crtc, &v); |
| 345 | /* cursor will have 0.5 added to it already so floor is sufficent */ |
| 346 | *x = floor(v.v[0]); |
| 347 | *y = floor(v.v[1]); |
| 348 | /* |
| 349 | * Transform position of cursor upper left corner |
| 350 | */ |
| 351 | xf86_crtc_rotate_coord_back(crtc->rotation, cursor_info->MaxWidth, |
| 352 | cursor_info->MaxHeight, ScreenPriv->HotX, |
| 353 | ScreenPriv->HotY, &dx, &dy); |
| 354 | *x -= dx; |
| 355 | *y -= dy; |
| 356 | } |
| 357 | |
| 358 | static void |
| 359 | xf86_crtc_set_cursor_position(xf86CrtcPtr crtc, int x, int y) |
| 360 | { |
| 361 | ScrnInfoPtr scrn = crtc->scrn; |
| 362 | xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 363 | xf86CursorInfoPtr cursor_info = xf86_config->cursor_info; |
| 364 | DisplayModePtr mode = &crtc->mode; |
| 365 | Bool in_range; |
| 366 | |
| 367 | /* |
| 368 | * Transform position of cursor on screen |
| 369 | */ |
| 370 | if (crtc->transform_in_use && !crtc->driverIsPerformingTransform) |
| 371 | xf86CrtcTransformCursorPos(crtc, &x, &y); |
| 372 | else { |
| 373 | x -= crtc->x; |
| 374 | y -= crtc->y; |
| 375 | } |
| 376 | |
| 377 | /* |
| 378 | * Disable the cursor when it is outside the viewport |
| 379 | */ |
| 380 | in_range = TRUE; |
| 381 | if (x >= mode->HDisplay || y >= mode->VDisplay || |
| 382 | x <= -cursor_info->MaxWidth || y <= -cursor_info->MaxHeight) { |
| 383 | in_range = FALSE; |
| 384 | x = 0; |
| 385 | y = 0; |
| 386 | } |
| 387 | |
| 388 | crtc->cursor_in_range = in_range; |
| 389 | |
| 390 | if (in_range) { |
| 391 | crtc->funcs->set_cursor_position(crtc, x, y); |
| 392 | xf86_crtc_show_cursor(crtc); |
| 393 | } |
| 394 | else |
| 395 | xf86_crtc_hide_cursor(crtc); |
| 396 | } |
| 397 | |
| 398 | static void |
| 399 | xf86_set_cursor_position(ScrnInfoPtr scrn, int x, int y) |
| 400 | { |
| 401 | xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 402 | int c; |
| 403 | |
| 404 | /* undo what xf86HWCurs did to the coordinates */ |
| 405 | x += scrn->frameX0; |
| 406 | y += scrn->frameY0; |
| 407 | for (c = 0; c < xf86_config->num_crtc; c++) { |
| 408 | xf86CrtcPtr crtc = xf86_config->crtc[c]; |
| 409 | |
| 410 | if (crtc->enabled) |
| 411 | xf86_crtc_set_cursor_position(crtc, x, y); |
| 412 | } |
| 413 | } |
| 414 | |
| 415 | /* |
| 416 | * Load a two-color cursor into a crtc, performing rotation as needed |
| 417 | */ |
| 418 | static void |
| 419 | xf86_crtc_load_cursor_image(xf86CrtcPtr crtc, CARD8 *src) |
| 420 | { |
| 421 | ScrnInfoPtr scrn = crtc->scrn; |
| 422 | xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 423 | xf86CursorInfoPtr cursor_info = xf86_config->cursor_info; |
| 424 | CARD8 *cursor_image; |
| 425 | const Rotation rotation = xf86_crtc_cursor_rotation(crtc); |
| 426 | |
| 427 | #ifdef ARGB_CURSOR |
| 428 | crtc->cursor_argb = FALSE; |
| 429 | #endif |
| 430 | |
| 431 | if (rotation == RR_Rotate_0) |
| 432 | cursor_image = src; |
| 433 | else { |
| 434 | int x, y; |
| 435 | int xin, yin; |
| 436 | int stride = cursor_info->MaxWidth >> 2; |
| 437 | |
| 438 | cursor_image = xf86_config->cursor_image; |
| 439 | memset(cursor_image, 0, cursor_info->MaxHeight * stride); |
| 440 | |
| 441 | for (y = 0; y < cursor_info->MaxHeight; y++) |
| 442 | for (x = 0; x < cursor_info->MaxWidth; x++) { |
| 443 | xf86_crtc_rotate_coord(rotation, |
| 444 | cursor_info->MaxWidth, |
| 445 | cursor_info->MaxHeight, |
| 446 | x, y, &xin, &yin); |
| 447 | if (get_bit(src, cursor_info, xin, yin, FALSE)) |
| 448 | set_bit(cursor_image, cursor_info, x, y, FALSE); |
| 449 | if (get_bit(src, cursor_info, xin, yin, TRUE)) |
| 450 | set_bit(cursor_image, cursor_info, x, y, TRUE); |
| 451 | } |
| 452 | } |
| 453 | crtc->funcs->load_cursor_image(crtc, cursor_image); |
| 454 | } |
| 455 | |
| 456 | /* |
| 457 | * Load a cursor image into all active CRTCs |
| 458 | */ |
| 459 | static void |
| 460 | xf86_load_cursor_image(ScrnInfoPtr scrn, unsigned char *src) |
| 461 | { |
| 462 | xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 463 | int c; |
| 464 | |
| 465 | for (c = 0; c < xf86_config->num_crtc; c++) { |
| 466 | xf86CrtcPtr crtc = xf86_config->crtc[c]; |
| 467 | |
| 468 | if (crtc->enabled) { |
| 469 | if (crtc->funcs->load_cursor_image) |
| 470 | xf86_crtc_load_cursor_image(crtc, src); |
| 471 | else if (crtc->funcs->load_cursor_argb) |
| 472 | xf86_crtc_convert_cursor_to_argb(crtc, src); |
| 473 | } |
| 474 | } |
| 475 | } |
| 476 | |
| 477 | static Bool |
| 478 | xf86_use_hw_cursor(ScreenPtr screen, CursorPtr cursor) |
| 479 | { |
| 480 | ScrnInfoPtr scrn = xf86ScreenToScrn(screen); |
| 481 | xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 482 | xf86CursorInfoPtr cursor_info = xf86_config->cursor_info; |
| 483 | |
| 484 | cursor = RefCursor(cursor); |
| 485 | if (xf86_config->cursor) |
| 486 | FreeCursor(xf86_config->cursor, None); |
| 487 | xf86_config->cursor = cursor; |
| 488 | |
| 489 | if (cursor->bits->width > cursor_info->MaxWidth || |
| 490 | cursor->bits->height > cursor_info->MaxHeight) |
| 491 | return FALSE; |
| 492 | |
| 493 | return TRUE; |
| 494 | } |
| 495 | |
| 496 | static Bool |
| 497 | xf86_use_hw_cursor_argb(ScreenPtr screen, CursorPtr cursor) |
| 498 | { |
| 499 | ScrnInfoPtr scrn = xf86ScreenToScrn(screen); |
| 500 | xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 501 | xf86CursorInfoPtr cursor_info = xf86_config->cursor_info; |
| 502 | |
| 503 | cursor = RefCursor(cursor); |
| 504 | if (xf86_config->cursor) |
| 505 | FreeCursor(xf86_config->cursor, None); |
| 506 | xf86_config->cursor = cursor; |
| 507 | |
| 508 | /* Make sure ARGB support is available */ |
| 509 | if ((cursor_info->Flags & HARDWARE_CURSOR_ARGB) == 0) |
| 510 | return FALSE; |
| 511 | |
| 512 | if (cursor->bits->width > cursor_info->MaxWidth || |
| 513 | cursor->bits->height > cursor_info->MaxHeight) |
| 514 | return FALSE; |
| 515 | |
| 516 | return TRUE; |
| 517 | } |
| 518 | |
| 519 | static void |
| 520 | xf86_crtc_load_cursor_argb(xf86CrtcPtr crtc, CursorPtr cursor) |
| 521 | { |
| 522 | ScrnInfoPtr scrn = crtc->scrn; |
| 523 | xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 524 | xf86CursorInfoPtr cursor_info = xf86_config->cursor_info; |
| 525 | CARD32 *cursor_image = (CARD32 *) xf86_config->cursor_image; |
| 526 | CARD32 *cursor_source = (CARD32 *) cursor->bits->argb; |
| 527 | int x, y; |
| 528 | int xin, yin; |
| 529 | CARD32 bits; |
| 530 | int source_width = cursor->bits->width; |
| 531 | int source_height = cursor->bits->height; |
| 532 | int image_width = cursor_info->MaxWidth; |
| 533 | int image_height = cursor_info->MaxHeight; |
| 534 | const Rotation rotation = xf86_crtc_cursor_rotation(crtc); |
| 535 | |
| 536 | for (y = 0; y < image_height; y++) |
| 537 | for (x = 0; x < image_width; x++) { |
| 538 | xf86_crtc_rotate_coord(rotation, image_width, image_height, x, y, |
| 539 | &xin, &yin); |
| 540 | if (xin < source_width && yin < source_height) |
| 541 | bits = cursor_source[yin * source_width + xin]; |
| 542 | else |
| 543 | bits = 0; |
| 544 | cursor_image[y * image_width + x] = bits; |
| 545 | } |
| 546 | |
| 547 | crtc->funcs->load_cursor_argb(crtc, cursor_image); |
| 548 | } |
| 549 | |
| 550 | static void |
| 551 | xf86_load_cursor_argb(ScrnInfoPtr scrn, CursorPtr cursor) |
| 552 | { |
| 553 | xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 554 | int c; |
| 555 | |
| 556 | for (c = 0; c < xf86_config->num_crtc; c++) { |
| 557 | xf86CrtcPtr crtc = xf86_config->crtc[c]; |
| 558 | |
| 559 | if (crtc->enabled) |
| 560 | xf86_crtc_load_cursor_argb(crtc, cursor); |
| 561 | } |
| 562 | } |
| 563 | |
| 564 | Bool |
| 565 | xf86_cursors_init(ScreenPtr screen, int max_width, int max_height, int flags) |
| 566 | { |
| 567 | ScrnInfoPtr scrn = xf86ScreenToScrn(screen); |
| 568 | xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 569 | xf86CursorInfoPtr cursor_info; |
| 570 | |
| 571 | cursor_info = xf86CreateCursorInfoRec(); |
| 572 | if (!cursor_info) |
| 573 | return FALSE; |
| 574 | |
| 575 | xf86_config->cursor_image = malloc(max_width * max_height * 4); |
| 576 | |
| 577 | if (!xf86_config->cursor_image) { |
| 578 | xf86DestroyCursorInfoRec(cursor_info); |
| 579 | return FALSE; |
| 580 | } |
| 581 | |
| 582 | xf86_config->cursor_info = cursor_info; |
| 583 | |
| 584 | cursor_info->MaxWidth = max_width; |
| 585 | cursor_info->MaxHeight = max_height; |
| 586 | cursor_info->Flags = flags; |
| 587 | |
| 588 | cursor_info->SetCursorColors = xf86_set_cursor_colors; |
| 589 | cursor_info->SetCursorPosition = xf86_set_cursor_position; |
| 590 | cursor_info->LoadCursorImage = xf86_load_cursor_image; |
| 591 | cursor_info->HideCursor = xf86_hide_cursors; |
| 592 | cursor_info->ShowCursor = xf86_show_cursors; |
| 593 | cursor_info->UseHWCursor = xf86_use_hw_cursor; |
| 594 | #ifdef ARGB_CURSOR |
| 595 | if (flags & HARDWARE_CURSOR_ARGB) { |
| 596 | cursor_info->UseHWCursorARGB = xf86_use_hw_cursor_argb; |
| 597 | cursor_info->LoadCursorARGB = xf86_load_cursor_argb; |
| 598 | } |
| 599 | #endif |
| 600 | |
| 601 | xf86_config->cursor = NULL; |
| 602 | xf86_hide_cursors(scrn); |
| 603 | |
| 604 | return xf86InitCursor(screen, cursor_info); |
| 605 | } |
| 606 | |
| 607 | /** |
| 608 | * Called when anything on the screen is reconfigured. |
| 609 | * |
| 610 | * Reloads cursor images as needed, then adjusts cursor positions |
| 611 | */ |
| 612 | |
| 613 | void |
| 614 | xf86_reload_cursors(ScreenPtr screen) |
| 615 | { |
| 616 | ScrnInfoPtr scrn; |
| 617 | xf86CrtcConfigPtr xf86_config; |
| 618 | xf86CursorInfoPtr cursor_info; |
| 619 | CursorPtr cursor; |
| 620 | int x, y; |
| 621 | xf86CursorScreenPtr cursor_screen_priv; |
| 622 | |
| 623 | /* initial mode setting will not have set a screen yet. |
| 624 | May be called before the devices are initialised. |
| 625 | */ |
| 626 | if (!screen || !inputInfo.pointer) |
| 627 | return; |
| 628 | cursor_screen_priv = dixLookupPrivate(&screen->devPrivates, |
| 629 | xf86CursorScreenKey); |
| 630 | /* return if HW cursor is inactive, to avoid displaying two cursors */ |
| 631 | if (!cursor_screen_priv || !cursor_screen_priv->isUp) |
| 632 | return; |
| 633 | |
| 634 | scrn = xf86ScreenToScrn(screen); |
| 635 | xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 636 | |
| 637 | /* make sure the cursor code has been initialized */ |
| 638 | cursor_info = xf86_config->cursor_info; |
| 639 | if (!cursor_info) |
| 640 | return; |
| 641 | |
| 642 | cursor = xf86_config->cursor; |
| 643 | GetSpritePosition(inputInfo.pointer, &x, &y); |
| 644 | if (!(cursor_info->Flags & HARDWARE_CURSOR_UPDATE_UNHIDDEN)) |
| 645 | (*cursor_info->HideCursor) (scrn); |
| 646 | |
| 647 | if (cursor) { |
| 648 | void *src = |
| 649 | dixLookupScreenPrivate(&cursor->devPrivates, CursorScreenKey, |
| 650 | screen); |
| 651 | #ifdef ARGB_CURSOR |
| 652 | if (cursor->bits->argb && cursor_info->LoadCursorARGB) |
| 653 | (*cursor_info->LoadCursorARGB) (scrn, cursor); |
| 654 | else if (src) |
| 655 | #endif |
| 656 | (*cursor_info->LoadCursorImage) (scrn, src); |
| 657 | |
| 658 | x += scrn->frameX0 + cursor_screen_priv->HotX; |
| 659 | y += scrn->frameY0 + cursor_screen_priv->HotY; |
| 660 | (*cursor_info->SetCursorPosition) (scrn, x, y); |
| 661 | } |
| 662 | } |
| 663 | |
| 664 | /** |
| 665 | * Clean up CRTC-based cursor code |
| 666 | */ |
| 667 | void |
| 668 | xf86_cursors_fini(ScreenPtr screen) |
| 669 | { |
| 670 | ScrnInfoPtr scrn = xf86ScreenToScrn(screen); |
| 671 | xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 672 | |
| 673 | if (xf86_config->cursor_info) { |
| 674 | xf86DestroyCursorInfoRec(xf86_config->cursor_info); |
| 675 | xf86_config->cursor_info = NULL; |
| 676 | } |
| 677 | free(xf86_config->cursor_image); |
| 678 | xf86_config->cursor_image = NULL; |
| 679 | if (xf86_config->cursor) { |
| 680 | FreeCursor(xf86_config->cursor, None); |
| 681 | xf86_config->cursor = NULL; |
| 682 | } |
| 683 | } |