1 /* 2 * Copyright 2011 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22 * DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: 25 * Kristian Hgsberg <krh (at) bitplanet.net> 26 */ 27 28 #include <stdbool.h> 29 #include <stdint.h> 30 #include <stdlib.h> 31 #include <string.h> 32 #include <stdio.h> 33 #include <limits.h> 34 #include <dlfcn.h> 35 #include <fcntl.h> 36 #include <errno.h> 37 #include <unistd.h> 38 #ifdef HAVE_LIBDRM 39 #include <xf86drm.h> 40 #endif 41 #include <sys/types.h> 42 #include <sys/stat.h> 43 44 #include "egl_dri2.h" 45 #include "egl_dri2_fallbacks.h" 46 #include "loader.h" 47 48 #ifdef HAVE_DRI3 49 #include "platform_x11_dri3.h" 50 #endif 51 52 static EGLBoolean 53 dri2_x11_swap_interval(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf, 54 EGLint interval); 55 56 static void 57 swrastCreateDrawable(struct dri2_egl_display * dri2_dpy, 58 struct dri2_egl_surface * dri2_surf) 59 { 60 uint32_t mask; 61 const uint32_t function = GXcopy; 62 uint32_t valgc[2]; 63 64 /* create GC's */ 65 dri2_surf->gc = xcb_generate_id(dri2_dpy->conn); 66 mask = XCB_GC_FUNCTION; 67 xcb_create_gc(dri2_dpy->conn, dri2_surf->gc, dri2_surf->drawable, mask, &function); 68 69 dri2_surf->swapgc = xcb_generate_id(dri2_dpy->conn); 70 mask = XCB_GC_FUNCTION | XCB_GC_GRAPHICS_EXPOSURES; 71 valgc[0] = function; 72 valgc[1] = False; 73 xcb_create_gc(dri2_dpy->conn, dri2_surf->swapgc, dri2_surf->drawable, mask, valgc); 74 switch (dri2_surf->depth) { 75 case 32: 76 case 24: 77 dri2_surf->bytes_per_pixel = 4; 78 break; 79 case 16: 80 dri2_surf->bytes_per_pixel = 2; 81 break; 82 case 8: 83 dri2_surf->bytes_per_pixel = 1; 84 break; 85 case 0: 86 dri2_surf->bytes_per_pixel = 0; 87 break; 88 default: 89 _eglLog(_EGL_WARNING, "unsupported depth %d", dri2_surf->depth); 90 } 91 } 92 93 static void 94 swrastDestroyDrawable(struct dri2_egl_display * dri2_dpy, 95 struct dri2_egl_surface * dri2_surf) 96 { 97 xcb_free_gc(dri2_dpy->conn, dri2_surf->gc); 98 xcb_free_gc(dri2_dpy->conn, dri2_surf->swapgc); 99 } 100 101 static void 102 swrastGetDrawableInfo(__DRIdrawable * draw, 103 int *x, int *y, int *w, int *h, 104 void *loaderPrivate) 105 { 106 struct dri2_egl_surface *dri2_surf = loaderPrivate; 107 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dri2_surf->base.Resource.Display); 108 109 xcb_get_geometry_cookie_t cookie; 110 xcb_get_geometry_reply_t *reply; 111 xcb_generic_error_t *error; 112 113 *w = *h = 0; 114 cookie = xcb_get_geometry (dri2_dpy->conn, dri2_surf->drawable); 115 reply = xcb_get_geometry_reply (dri2_dpy->conn, cookie, &error); 116 if (reply == NULL) 117 return; 118 119 if (error != NULL) { 120 _eglLog(_EGL_WARNING, "error in xcb_get_geometry"); 121 free(error); 122 } else { 123 *w = reply->width; 124 *h = reply->height; 125 } 126 free(reply); 127 } 128 129 static void 130 swrastPutImage(__DRIdrawable * draw, int op, 131 int x, int y, int w, int h, 132 char *data, void *loaderPrivate) 133 { 134 struct dri2_egl_surface *dri2_surf = loaderPrivate; 135 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dri2_surf->base.Resource.Display); 136 137 xcb_gcontext_t gc; 138 139 switch (op) { 140 case __DRI_SWRAST_IMAGE_OP_DRAW: 141 gc = dri2_surf->gc; 142 break; 143 case __DRI_SWRAST_IMAGE_OP_SWAP: 144 gc = dri2_surf->swapgc; 145 break; 146 default: 147 return; 148 } 149 150 xcb_put_image(dri2_dpy->conn, XCB_IMAGE_FORMAT_Z_PIXMAP, dri2_surf->drawable, 151 gc, w, h, x, y, 0, dri2_surf->depth, 152 w*h*dri2_surf->bytes_per_pixel, (const uint8_t *)data); 153 } 154 155 static void 156 swrastGetImage(__DRIdrawable * read, 157 int x, int y, int w, int h, 158 char *data, void *loaderPrivate) 159 { 160 struct dri2_egl_surface *dri2_surf = loaderPrivate; 161 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dri2_surf->base.Resource.Display); 162 163 xcb_get_image_cookie_t cookie; 164 xcb_get_image_reply_t *reply; 165 xcb_generic_error_t *error; 166 167 cookie = xcb_get_image (dri2_dpy->conn, XCB_IMAGE_FORMAT_Z_PIXMAP, 168 dri2_surf->drawable, x, y, w, h, ~0); 169 reply = xcb_get_image_reply (dri2_dpy->conn, cookie, &error); 170 if (reply == NULL) 171 return; 172 173 if (error != NULL) { 174 _eglLog(_EGL_WARNING, "error in xcb_get_image"); 175 free(error); 176 } else { 177 uint32_t bytes = xcb_get_image_data_length(reply); 178 uint8_t *idata = xcb_get_image_data(reply); 179 memcpy(data, idata, bytes); 180 } 181 free(reply); 182 } 183 184 185 static xcb_screen_t * 186 get_xcb_screen(xcb_screen_iterator_t iter, int screen) 187 { 188 for (; iter.rem; --screen, xcb_screen_next(&iter)) 189 if (screen == 0) 190 return iter.data; 191 192 return NULL; 193 } 194 195 196 /** 197 * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface(). 198 */ 199 static _EGLSurface * 200 dri2_x11_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type, 201 _EGLConfig *conf, void *native_surface, 202 const EGLint *attrib_list) 203 { 204 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); 205 struct dri2_egl_config *dri2_conf = dri2_egl_config(conf); 206 struct dri2_egl_surface *dri2_surf; 207 xcb_get_geometry_cookie_t cookie; 208 xcb_get_geometry_reply_t *reply; 209 xcb_generic_error_t *error; 210 xcb_drawable_t drawable; 211 const __DRIconfig *config; 212 213 STATIC_ASSERT(sizeof(uintptr_t) == sizeof(native_surface)); 214 drawable = (uintptr_t) native_surface; 215 216 (void) drv; 217 218 dri2_surf = malloc(sizeof *dri2_surf); 219 if (!dri2_surf) { 220 _eglError(EGL_BAD_ALLOC, "dri2_create_surface"); 221 return NULL; 222 } 223 224 if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list)) 225 goto cleanup_surf; 226 227 dri2_surf->region = XCB_NONE; 228 if (type == EGL_PBUFFER_BIT) { 229 dri2_surf->drawable = xcb_generate_id(dri2_dpy->conn); 230 xcb_create_pixmap(dri2_dpy->conn, conf->BufferSize, 231 dri2_surf->drawable, dri2_dpy->screen->root, 232 dri2_surf->base.Width, dri2_surf->base.Height); 233 } else { 234 if (!drawable) { 235 if (type == EGL_WINDOW_BIT) 236 _eglError(EGL_BAD_NATIVE_WINDOW, "dri2_create_surface"); 237 else 238 _eglError(EGL_BAD_NATIVE_PIXMAP, "dri2_create_surface"); 239 goto cleanup_surf; 240 } 241 dri2_surf->drawable = drawable; 242 } 243 244 config = dri2_get_dri_config(dri2_conf, type, 245 dri2_surf->base.GLColorspace); 246 247 if (dri2_dpy->dri2) { 248 dri2_surf->dri_drawable = 249 dri2_dpy->dri2->createNewDrawable(dri2_dpy->dri_screen, config, 250 dri2_surf); 251 } else { 252 assert(dri2_dpy->swrast); 253 dri2_surf->dri_drawable = 254 dri2_dpy->swrast->createNewDrawable(dri2_dpy->dri_screen, config, 255 dri2_surf); 256 } 257 258 if (dri2_surf->dri_drawable == NULL) { 259 _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable"); 260 goto cleanup_pixmap; 261 } 262 263 if (type != EGL_PBUFFER_BIT) { 264 cookie = xcb_get_geometry (dri2_dpy->conn, dri2_surf->drawable); 265 reply = xcb_get_geometry_reply (dri2_dpy->conn, cookie, &error); 266 if (error != NULL) { 267 if (error->error_code == BadAlloc) 268 _eglError(EGL_BAD_ALLOC, "xcb_get_geometry"); 269 else if (type == EGL_WINDOW_BIT) 270 _eglError(EGL_BAD_NATIVE_WINDOW, "xcb_get_geometry"); 271 else 272 _eglError(EGL_BAD_NATIVE_PIXMAP, "xcb_get_geometry"); 273 free(error); 274 goto cleanup_dri_drawable; 275 } else if (reply == NULL) { 276 _eglError(EGL_BAD_ALLOC, "xcb_get_geometry"); 277 goto cleanup_dri_drawable; 278 } 279 280 dri2_surf->base.Width = reply->width; 281 dri2_surf->base.Height = reply->height; 282 dri2_surf->depth = reply->depth; 283 free(reply); 284 } 285 286 if (dri2_dpy->dri2) { 287 xcb_void_cookie_t cookie; 288 int conn_error; 289 290 cookie = xcb_dri2_create_drawable_checked(dri2_dpy->conn, 291 dri2_surf->drawable); 292 error = xcb_request_check(dri2_dpy->conn, cookie); 293 conn_error = xcb_connection_has_error(dri2_dpy->conn); 294 if (conn_error || error != NULL) { 295 if (type == EGL_PBUFFER_BIT || conn_error || error->error_code == BadAlloc) 296 _eglError(EGL_BAD_ALLOC, "xcb_dri2_create_drawable_checked"); 297 else if (type == EGL_WINDOW_BIT) 298 _eglError(EGL_BAD_NATIVE_WINDOW, 299 "xcb_dri2_create_drawable_checked"); 300 else 301 _eglError(EGL_BAD_NATIVE_PIXMAP, 302 "xcb_dri2_create_drawable_checked"); 303 free(error); 304 goto cleanup_dri_drawable; 305 } 306 } else { 307 if (type == EGL_PBUFFER_BIT) { 308 dri2_surf->depth = _eglGetConfigKey(conf, EGL_BUFFER_SIZE); 309 } 310 swrastCreateDrawable(dri2_dpy, dri2_surf); 311 } 312 313 /* we always copy the back buffer to front */ 314 dri2_surf->base.PostSubBufferSupportedNV = EGL_TRUE; 315 316 return &dri2_surf->base; 317 318 cleanup_dri_drawable: 319 dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable); 320 cleanup_pixmap: 321 if (type == EGL_PBUFFER_BIT) 322 xcb_free_pixmap(dri2_dpy->conn, dri2_surf->drawable); 323 cleanup_surf: 324 free(dri2_surf); 325 326 return NULL; 327 } 328 329 /** 330 * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface(). 331 */ 332 static _EGLSurface * 333 dri2_x11_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp, 334 _EGLConfig *conf, void *native_window, 335 const EGLint *attrib_list) 336 { 337 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); 338 _EGLSurface *surf; 339 340 surf = dri2_x11_create_surface(drv, disp, EGL_WINDOW_BIT, conf, 341 native_window, attrib_list); 342 if (surf != NULL) { 343 /* When we first create the DRI2 drawable, its swap interval on the 344 * server side is 1. 345 */ 346 surf->SwapInterval = 1; 347 348 /* Override that with a driconf-set value. */ 349 dri2_x11_swap_interval(drv, disp, surf, dri2_dpy->default_swap_interval); 350 } 351 352 return surf; 353 } 354 355 static _EGLSurface * 356 dri2_x11_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp, 357 _EGLConfig *conf, void *native_pixmap, 358 const EGLint *attrib_list) 359 { 360 return dri2_x11_create_surface(drv, disp, EGL_PIXMAP_BIT, conf, 361 native_pixmap, attrib_list); 362 } 363 364 static _EGLSurface * 365 dri2_x11_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp, 366 _EGLConfig *conf, const EGLint *attrib_list) 367 { 368 return dri2_x11_create_surface(drv, disp, EGL_PBUFFER_BIT, conf, 369 XCB_WINDOW_NONE, attrib_list); 370 } 371 372 static EGLBoolean 373 dri2_x11_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf) 374 { 375 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); 376 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf); 377 378 (void) drv; 379 380 dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable); 381 382 if (dri2_dpy->dri2) { 383 xcb_dri2_destroy_drawable (dri2_dpy->conn, dri2_surf->drawable); 384 } else { 385 assert(dri2_dpy->swrast); 386 swrastDestroyDrawable(dri2_dpy, dri2_surf); 387 } 388 389 if (surf->Type == EGL_PBUFFER_BIT) 390 xcb_free_pixmap (dri2_dpy->conn, dri2_surf->drawable); 391 392 free(surf); 393 394 return EGL_TRUE; 395 } 396 397 /** 398 * Function utilizes swrastGetDrawableInfo to get surface 399 * geometry from x server and calls default query surface 400 * implementation that returns the updated values. 401 * 402 * In case of errors we still return values that we currently 403 * have. 404 */ 405 static EGLBoolean 406 dri2_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, 407 _EGLSurface *surf, EGLint attribute, 408 EGLint *value) 409 { 410 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy); 411 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf); 412 int x, y, w = -1, h = -1; 413 414 __DRIdrawable *drawable = dri2_dpy->vtbl->get_dri_drawable(surf); 415 416 switch (attribute) { 417 case EGL_WIDTH: 418 case EGL_HEIGHT: 419 swrastGetDrawableInfo(drawable, &x, &y, &w, &h, dri2_surf); 420 if (w != -1 && h != -1) { 421 surf->Width = w; 422 surf->Height = h; 423 } 424 break; 425 default: 426 break; 427 } 428 return _eglQuerySurface(drv, dpy, surf, attribute, value); 429 } 430 431 /** 432 * Process list of buffer received from the server 433 * 434 * Processes the list of buffers received in a reply from the server to either 435 * \c DRI2GetBuffers or \c DRI2GetBuffersWithFormat. 436 */ 437 static void 438 dri2_x11_process_buffers(struct dri2_egl_surface *dri2_surf, 439 xcb_dri2_dri2_buffer_t *buffers, unsigned count) 440 { 441 struct dri2_egl_display *dri2_dpy = 442 dri2_egl_display(dri2_surf->base.Resource.Display); 443 xcb_rectangle_t rectangle; 444 unsigned i; 445 446 dri2_surf->buffer_count = count; 447 dri2_surf->have_fake_front = 0; 448 449 /* This assumes the DRI2 buffer attachment tokens matches the 450 * __DRIbuffer tokens. */ 451 for (i = 0; i < count; i++) { 452 dri2_surf->buffers[i].attachment = buffers[i].attachment; 453 dri2_surf->buffers[i].name = buffers[i].name; 454 dri2_surf->buffers[i].pitch = buffers[i].pitch; 455 dri2_surf->buffers[i].cpp = buffers[i].cpp; 456 dri2_surf->buffers[i].flags = buffers[i].flags; 457 458 /* We only use the DRI drivers single buffer configs. This 459 * means that if we try to render to a window, DRI2 will give us 460 * the fake front buffer, which we'll use as a back buffer. 461 * Note that EGL doesn't require that several clients rendering 462 * to the same window must see the same aux buffers. */ 463 if (dri2_surf->buffers[i].attachment == __DRI_BUFFER_FAKE_FRONT_LEFT) 464 dri2_surf->have_fake_front = 1; 465 } 466 467 if (dri2_surf->region != XCB_NONE) 468 xcb_xfixes_destroy_region(dri2_dpy->conn, dri2_surf->region); 469 470 rectangle.x = 0; 471 rectangle.y = 0; 472 rectangle.width = dri2_surf->base.Width; 473 rectangle.height = dri2_surf->base.Height; 474 dri2_surf->region = xcb_generate_id(dri2_dpy->conn); 475 xcb_xfixes_create_region(dri2_dpy->conn, dri2_surf->region, 1, &rectangle); 476 } 477 478 static __DRIbuffer * 479 dri2_x11_get_buffers(__DRIdrawable * driDrawable, 480 int *width, int *height, 481 unsigned int *attachments, int count, 482 int *out_count, void *loaderPrivate) 483 { 484 struct dri2_egl_surface *dri2_surf = loaderPrivate; 485 struct dri2_egl_display *dri2_dpy = 486 dri2_egl_display(dri2_surf->base.Resource.Display); 487 xcb_dri2_dri2_buffer_t *buffers; 488 xcb_dri2_get_buffers_reply_t *reply; 489 xcb_dri2_get_buffers_cookie_t cookie; 490 491 (void) driDrawable; 492 493 cookie = xcb_dri2_get_buffers_unchecked (dri2_dpy->conn, 494 dri2_surf->drawable, 495 count, count, attachments); 496 reply = xcb_dri2_get_buffers_reply (dri2_dpy->conn, cookie, NULL); 497 if (reply == NULL) 498 return NULL; 499 buffers = xcb_dri2_get_buffers_buffers (reply); 500 if (buffers == NULL) 501 return NULL; 502 503 *out_count = reply->count; 504 dri2_surf->base.Width = *width = reply->width; 505 dri2_surf->base.Height = *height = reply->height; 506 dri2_x11_process_buffers(dri2_surf, buffers, *out_count); 507 508 free(reply); 509 510 return dri2_surf->buffers; 511 } 512 513 static __DRIbuffer * 514 dri2_x11_get_buffers_with_format(__DRIdrawable * driDrawable, 515 int *width, int *height, 516 unsigned int *attachments, int count, 517 int *out_count, void *loaderPrivate) 518 { 519 struct dri2_egl_surface *dri2_surf = loaderPrivate; 520 struct dri2_egl_display *dri2_dpy = 521 dri2_egl_display(dri2_surf->base.Resource.Display); 522 xcb_dri2_dri2_buffer_t *buffers; 523 xcb_dri2_get_buffers_with_format_reply_t *reply; 524 xcb_dri2_get_buffers_with_format_cookie_t cookie; 525 xcb_dri2_attach_format_t *format_attachments; 526 527 (void) driDrawable; 528 529 format_attachments = (xcb_dri2_attach_format_t *) attachments; 530 cookie = xcb_dri2_get_buffers_with_format_unchecked (dri2_dpy->conn, 531 dri2_surf->drawable, 532 count, count, 533 format_attachments); 534 535 reply = xcb_dri2_get_buffers_with_format_reply (dri2_dpy->conn, 536 cookie, NULL); 537 if (reply == NULL) 538 return NULL; 539 540 buffers = xcb_dri2_get_buffers_with_format_buffers (reply); 541 dri2_surf->base.Width = *width = reply->width; 542 dri2_surf->base.Height = *height = reply->height; 543 *out_count = reply->count; 544 dri2_x11_process_buffers(dri2_surf, buffers, *out_count); 545 546 free(reply); 547 548 return dri2_surf->buffers; 549 } 550 551 static void 552 dri2_x11_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate) 553 { 554 (void) driDrawable; 555 556 /* FIXME: Does EGL support front buffer rendering at all? */ 557 558 #if 0 559 struct dri2_egl_surface *dri2_surf = loaderPrivate; 560 561 dri2WaitGL(dri2_surf); 562 #else 563 (void) loaderPrivate; 564 #endif 565 } 566 567 static int 568 dri2_x11_do_authenticate(struct dri2_egl_display *dri2_dpy, uint32_t id) 569 { 570 xcb_dri2_authenticate_reply_t *authenticate; 571 xcb_dri2_authenticate_cookie_t authenticate_cookie; 572 int ret = 0; 573 574 authenticate_cookie = 575 xcb_dri2_authenticate_unchecked(dri2_dpy->conn, dri2_dpy->screen->root, id); 576 authenticate = 577 xcb_dri2_authenticate_reply(dri2_dpy->conn, authenticate_cookie, NULL); 578 579 if (authenticate == NULL || !authenticate->authenticated) 580 ret = -1; 581 582 free(authenticate); 583 584 return ret; 585 } 586 587 static EGLBoolean 588 dri2_x11_local_authenticate(struct dri2_egl_display *dri2_dpy) 589 { 590 #ifdef HAVE_LIBDRM 591 drm_magic_t magic; 592 593 if (drmGetMagic(dri2_dpy->fd, &magic)) { 594 _eglLog(_EGL_WARNING, "DRI2: failed to get drm magic"); 595 return EGL_FALSE; 596 } 597 598 if (dri2_x11_do_authenticate(dri2_dpy, magic) < 0) { 599 _eglLog(_EGL_WARNING, "DRI2: failed to authenticate"); 600 return EGL_FALSE; 601 } 602 #endif 603 return EGL_TRUE; 604 } 605 606 static EGLBoolean 607 dri2_x11_connect(struct dri2_egl_display *dri2_dpy) 608 { 609 xcb_xfixes_query_version_reply_t *xfixes_query; 610 xcb_xfixes_query_version_cookie_t xfixes_query_cookie; 611 xcb_dri2_query_version_reply_t *dri2_query; 612 xcb_dri2_query_version_cookie_t dri2_query_cookie; 613 xcb_dri2_connect_reply_t *connect; 614 xcb_dri2_connect_cookie_t connect_cookie; 615 xcb_generic_error_t *error; 616 char *driver_name, *loader_driver_name, *device_name; 617 const xcb_query_extension_reply_t *extension; 618 619 xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_xfixes_id); 620 xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_dri2_id); 621 622 extension = xcb_get_extension_data(dri2_dpy->conn, &xcb_xfixes_id); 623 if (!(extension && extension->present)) 624 return EGL_FALSE; 625 626 extension = xcb_get_extension_data(dri2_dpy->conn, &xcb_dri2_id); 627 if (!(extension && extension->present)) 628 return EGL_FALSE; 629 630 xfixes_query_cookie = xcb_xfixes_query_version(dri2_dpy->conn, 631 XCB_XFIXES_MAJOR_VERSION, 632 XCB_XFIXES_MINOR_VERSION); 633 634 dri2_query_cookie = xcb_dri2_query_version (dri2_dpy->conn, 635 XCB_DRI2_MAJOR_VERSION, 636 XCB_DRI2_MINOR_VERSION); 637 638 connect_cookie = xcb_dri2_connect_unchecked(dri2_dpy->conn, dri2_dpy->screen->root, 639 XCB_DRI2_DRIVER_TYPE_DRI); 640 641 xfixes_query = 642 xcb_xfixes_query_version_reply (dri2_dpy->conn, 643 xfixes_query_cookie, &error); 644 if (xfixes_query == NULL || 645 error != NULL || xfixes_query->major_version < 2) { 646 _eglLog(_EGL_WARNING, "DRI2: failed to query xfixes version"); 647 free(error); 648 return EGL_FALSE; 649 } 650 free(xfixes_query); 651 652 dri2_query = 653 xcb_dri2_query_version_reply (dri2_dpy->conn, dri2_query_cookie, &error); 654 if (dri2_query == NULL || error != NULL) { 655 _eglLog(_EGL_WARNING, "DRI2: failed to query version"); 656 free(error); 657 return EGL_FALSE; 658 } 659 dri2_dpy->dri2_major = dri2_query->major_version; 660 dri2_dpy->dri2_minor = dri2_query->minor_version; 661 free(dri2_query); 662 663 connect = xcb_dri2_connect_reply (dri2_dpy->conn, connect_cookie, NULL); 664 if (connect == NULL || 665 connect->driver_name_length + connect->device_name_length == 0) { 666 _eglLog(_EGL_WARNING, "DRI2: failed to authenticate"); 667 return EGL_FALSE; 668 } 669 670 device_name = xcb_dri2_connect_device_name (connect); 671 672 dri2_dpy->fd = loader_open_device(device_name); 673 if (dri2_dpy->fd == -1) { 674 _eglLog(_EGL_WARNING, 675 "DRI2: could not open %s (%s)", device_name, strerror(errno)); 676 free(connect); 677 return EGL_FALSE; 678 } 679 680 if (!dri2_x11_local_authenticate(dri2_dpy)) { 681 close(dri2_dpy->fd); 682 free(connect); 683 return EGL_FALSE; 684 } 685 686 driver_name = xcb_dri2_connect_driver_name (connect); 687 688 /* If Mesa knows about the appropriate driver for this fd, then trust it. 689 * Otherwise, default to the server's value. 690 */ 691 loader_driver_name = loader_get_driver_for_fd(dri2_dpy->fd); 692 if (loader_driver_name) { 693 dri2_dpy->driver_name = loader_driver_name; 694 } else { 695 dri2_dpy->driver_name = 696 strndup(driver_name, 697 xcb_dri2_connect_driver_name_length(connect)); 698 } 699 700 if (dri2_dpy->driver_name == NULL) { 701 close(dri2_dpy->fd); 702 free(dri2_dpy->driver_name); 703 free(connect); 704 return EGL_FALSE; 705 } 706 707 #ifdef HAVE_WAYLAND_PLATFORM 708 dri2_dpy->device_name = 709 strndup(device_name, 710 xcb_dri2_connect_device_name_length(connect)); 711 #endif 712 713 free(connect); 714 715 return EGL_TRUE; 716 } 717 718 static int 719 dri2_x11_authenticate(_EGLDisplay *disp, uint32_t id) 720 { 721 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); 722 723 return dri2_x11_do_authenticate(dri2_dpy, id); 724 } 725 726 static EGLBoolean 727 dri2_x11_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy, 728 _EGLDisplay *disp, bool supports_preserved) 729 { 730 xcb_depth_iterator_t d; 731 xcb_visualtype_t *visuals; 732 int i, j, count; 733 unsigned int rgba_masks[4]; 734 EGLint surface_type; 735 EGLint config_attrs[] = { 736 EGL_NATIVE_VISUAL_ID, 0, 737 EGL_NATIVE_VISUAL_TYPE, 0, 738 EGL_NONE 739 }; 740 741 d = xcb_screen_allowed_depths_iterator(dri2_dpy->screen); 742 count = 0; 743 744 surface_type = 745 EGL_WINDOW_BIT | 746 EGL_PIXMAP_BIT | 747 EGL_PBUFFER_BIT; 748 749 if (supports_preserved) 750 surface_type |= EGL_SWAP_BEHAVIOR_PRESERVED_BIT; 751 752 while (d.rem > 0) { 753 EGLBoolean class_added[6] = { 0, }; 754 755 visuals = xcb_depth_visuals(d.data); 756 for (i = 0; i < xcb_depth_visuals_length(d.data); i++) { 757 if (class_added[visuals[i]._class]) 758 continue; 759 760 class_added[visuals[i]._class] = EGL_TRUE; 761 for (j = 0; dri2_dpy->driver_configs[j]; j++) { 762 struct dri2_egl_config *dri2_conf; 763 const __DRIconfig *config = dri2_dpy->driver_configs[j]; 764 765 config_attrs[1] = visuals[i].visual_id; 766 config_attrs[3] = visuals[i]._class; 767 768 rgba_masks[0] = visuals[i].red_mask; 769 rgba_masks[1] = visuals[i].green_mask; 770 rgba_masks[2] = visuals[i].blue_mask; 771 rgba_masks[3] = 0; 772 dri2_conf = dri2_add_config(disp, config, count + 1, surface_type, 773 config_attrs, rgba_masks); 774 if (dri2_conf) 775 count++; 776 777 /* Allow a 24-bit RGB visual to match a 32-bit RGBA EGLConfig. 778 * Otherwise it will only match a 32-bit RGBA visual. On a 779 * composited window manager on X11, this will make all of the 780 * EGLConfigs with destination alpha get blended by the 781 * compositor. This is probably not what the application 782 * wants... especially on drivers that only have 32-bit RGBA 783 * EGLConfigs! */ 784 if (d.data->depth == 24) { 785 rgba_masks[3] = 786 ~(rgba_masks[0] | rgba_masks[1] | rgba_masks[2]); 787 dri2_conf = dri2_add_config(disp, config, count + 1, surface_type, 788 config_attrs, rgba_masks); 789 if (dri2_conf) 790 count++; 791 } 792 } 793 } 794 795 xcb_depth_next(&d); 796 } 797 798 if (!count) { 799 _eglLog(_EGL_WARNING, "DRI2: failed to create any config"); 800 return EGL_FALSE; 801 } 802 803 return EGL_TRUE; 804 } 805 806 static EGLBoolean 807 dri2_copy_region(_EGLDriver *drv, _EGLDisplay *disp, 808 _EGLSurface *draw, xcb_xfixes_region_t region) 809 { 810 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); 811 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw); 812 enum xcb_dri2_attachment_t render_attachment; 813 xcb_dri2_copy_region_cookie_t cookie; 814 815 /* No-op for a pixmap or pbuffer surface */ 816 if (draw->Type == EGL_PIXMAP_BIT || draw->Type == EGL_PBUFFER_BIT) 817 return EGL_TRUE; 818 819 if (dri2_dpy->flush) 820 dri2_dpy->flush->flush(dri2_surf->dri_drawable); 821 822 if (dri2_surf->have_fake_front) 823 render_attachment = XCB_DRI2_ATTACHMENT_BUFFER_FAKE_FRONT_LEFT; 824 else 825 render_attachment = XCB_DRI2_ATTACHMENT_BUFFER_BACK_LEFT; 826 827 cookie = xcb_dri2_copy_region_unchecked(dri2_dpy->conn, 828 dri2_surf->drawable, 829 region, 830 XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT, 831 render_attachment); 832 free(xcb_dri2_copy_region_reply(dri2_dpy->conn, cookie, NULL)); 833 834 return EGL_TRUE; 835 } 836 837 static int64_t 838 dri2_x11_swap_buffers_msc(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw, 839 int64_t msc, int64_t divisor, int64_t remainder) 840 { 841 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); 842 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw); 843 uint32_t msc_hi = msc >> 32; 844 uint32_t msc_lo = msc & 0xffffffff; 845 uint32_t divisor_hi = divisor >> 32; 846 uint32_t divisor_lo = divisor & 0xffffffff; 847 uint32_t remainder_hi = remainder >> 32; 848 uint32_t remainder_lo = remainder & 0xffffffff; 849 xcb_dri2_swap_buffers_cookie_t cookie; 850 xcb_dri2_swap_buffers_reply_t *reply; 851 int64_t swap_count = -1; 852 853 /* No-op for a pixmap or pbuffer surface */ 854 if (draw->Type == EGL_PIXMAP_BIT || draw->Type == EGL_PBUFFER_BIT) 855 return 0; 856 857 if (draw->SwapBehavior == EGL_BUFFER_PRESERVED || !dri2_dpy->swap_available) 858 return dri2_copy_region(drv, disp, draw, dri2_surf->region) ? 0 : -1; 859 860 dri2_flush_drawable_for_swapbuffers(disp, draw); 861 862 cookie = xcb_dri2_swap_buffers_unchecked(dri2_dpy->conn, dri2_surf->drawable, 863 msc_hi, msc_lo, divisor_hi, divisor_lo, remainder_hi, remainder_lo); 864 865 reply = xcb_dri2_swap_buffers_reply(dri2_dpy->conn, cookie, NULL); 866 867 if (reply) { 868 swap_count = (((int64_t)reply->swap_hi) << 32) | reply->swap_lo; 869 free(reply); 870 } 871 872 /* Since we aren't watching for the server's invalidate events like we're 873 * supposed to (due to XCB providing no mechanism for filtering the events 874 * the way xlib does), and SwapBuffers is a common cause of invalidate 875 * events, just shove one down to the driver, even though we haven't told 876 * the driver that we're the kind of loader that provides reliable 877 * invalidate events. This causes the driver to request buffers again at 878 * its next draw, so that we get the correct buffers if a pageflip 879 * happened. The driver should still be using the viewport hack to catch 880 * window resizes. 881 */ 882 if (dri2_dpy->flush && 883 dri2_dpy->flush->base.version >= 3 && dri2_dpy->flush->invalidate) 884 dri2_dpy->flush->invalidate(dri2_surf->dri_drawable); 885 886 return swap_count; 887 } 888 889 static EGLBoolean 890 dri2_x11_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw) 891 { 892 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); 893 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw); 894 895 if (dri2_dpy->dri2) { 896 if (dri2_x11_swap_buffers_msc(drv, disp, draw, 0, 0, 0) != -1) { 897 return EGL_TRUE; 898 } 899 /* Swap failed with a window drawable. */ 900 _eglError(EGL_BAD_NATIVE_WINDOW, __func__); 901 return EGL_FALSE; 902 } else { 903 assert(dri2_dpy->swrast); 904 905 dri2_dpy->core->swapBuffers(dri2_surf->dri_drawable); 906 return EGL_TRUE; 907 } 908 } 909 910 static EGLBoolean 911 dri2_x11_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *disp, 912 _EGLSurface *draw, 913 EGLint numRects, const EGLint *rects) 914 { 915 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); 916 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw); 917 EGLBoolean ret; 918 xcb_xfixes_region_t region; 919 xcb_rectangle_t rectangles[16]; 920 int i; 921 922 if (numRects > (int)ARRAY_SIZE(rectangles)) 923 return dri2_copy_region(drv, disp, draw, dri2_surf->region); 924 925 for (i = 0; i < numRects; i++) { 926 rectangles[i].x = rects[i * 4]; 927 rectangles[i].y = dri2_surf->base.Height - rects[i * 4 + 1] - rects[i * 4 + 3]; 928 rectangles[i].width = rects[i * 4 + 2]; 929 rectangles[i].height = rects[i * 4 + 3]; 930 } 931 932 region = xcb_generate_id(dri2_dpy->conn); 933 xcb_xfixes_create_region(dri2_dpy->conn, region, numRects, rectangles); 934 ret = dri2_copy_region(drv, disp, draw, region); 935 xcb_xfixes_destroy_region(dri2_dpy->conn, region); 936 937 return ret; 938 } 939 940 static EGLBoolean 941 dri2_x11_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw, 942 EGLint x, EGLint y, EGLint width, EGLint height) 943 { 944 const EGLint rect[4] = { x, y, width, height }; 945 946 if (x < 0 || y < 0 || width < 0 || height < 0) 947 _eglError(EGL_BAD_PARAMETER, "eglPostSubBufferNV"); 948 949 return dri2_x11_swap_buffers_region(drv, disp, draw, 1, rect); 950 } 951 952 static EGLBoolean 953 dri2_x11_swap_interval(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf, 954 EGLint interval) 955 { 956 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); 957 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf); 958 959 if (interval > surf->Config->MaxSwapInterval) 960 interval = surf->Config->MaxSwapInterval; 961 else if (interval < surf->Config->MinSwapInterval) 962 interval = surf->Config->MinSwapInterval; 963 964 if (interval != surf->SwapInterval && dri2_dpy->swap_available) 965 xcb_dri2_swap_interval(dri2_dpy->conn, dri2_surf->drawable, interval); 966 967 surf->SwapInterval = interval; 968 969 return EGL_TRUE; 970 } 971 972 static EGLBoolean 973 dri2_x11_copy_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf, 974 void *native_pixmap_target) 975 { 976 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); 977 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf); 978 xcb_gcontext_t gc; 979 xcb_pixmap_t target; 980 981 STATIC_ASSERT(sizeof(uintptr_t) == sizeof(native_pixmap_target)); 982 target = (uintptr_t) native_pixmap_target; 983 984 (void) drv; 985 986 dri2_dpy->flush->flush(dri2_surf->dri_drawable); 987 988 gc = xcb_generate_id(dri2_dpy->conn); 989 xcb_create_gc(dri2_dpy->conn, gc, target, 0, NULL); 990 xcb_copy_area(dri2_dpy->conn, 991 dri2_surf->drawable, 992 target, 993 gc, 994 0, 0, 995 0, 0, 996 dri2_surf->base.Width, 997 dri2_surf->base.Height); 998 xcb_free_gc(dri2_dpy->conn, gc); 999 1000 return EGL_TRUE; 1001 } 1002 1003 static _EGLImage * 1004 dri2_create_image_khr_pixmap(_EGLDisplay *disp, _EGLContext *ctx, 1005 EGLClientBuffer buffer, const EGLint *attr_list) 1006 { 1007 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); 1008 struct dri2_egl_image *dri2_img; 1009 unsigned int attachments[1]; 1010 xcb_drawable_t drawable; 1011 xcb_dri2_get_buffers_cookie_t buffers_cookie; 1012 xcb_dri2_get_buffers_reply_t *buffers_reply; 1013 xcb_dri2_dri2_buffer_t *buffers; 1014 xcb_get_geometry_cookie_t geometry_cookie; 1015 xcb_get_geometry_reply_t *geometry_reply; 1016 xcb_generic_error_t *error; 1017 int stride, format; 1018 1019 (void) ctx; 1020 1021 drawable = (xcb_drawable_t) (uintptr_t) buffer; 1022 xcb_dri2_create_drawable (dri2_dpy->conn, drawable); 1023 attachments[0] = XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT; 1024 buffers_cookie = 1025 xcb_dri2_get_buffers_unchecked (dri2_dpy->conn, 1026 drawable, 1, 1, attachments); 1027 geometry_cookie = xcb_get_geometry (dri2_dpy->conn, drawable); 1028 buffers_reply = xcb_dri2_get_buffers_reply (dri2_dpy->conn, 1029 buffers_cookie, NULL); 1030 if (buffers_reply == NULL) 1031 return NULL; 1032 1033 buffers = xcb_dri2_get_buffers_buffers (buffers_reply); 1034 if (buffers == NULL) { 1035 return NULL; 1036 } 1037 1038 geometry_reply = xcb_get_geometry_reply (dri2_dpy->conn, 1039 geometry_cookie, &error); 1040 if (geometry_reply == NULL || error != NULL) { 1041 _eglError(EGL_BAD_ALLOC, "xcb_get_geometry"); 1042 free(error); 1043 free(buffers_reply); 1044 return NULL; 1045 } 1046 1047 switch (geometry_reply->depth) { 1048 case 16: 1049 format = __DRI_IMAGE_FORMAT_RGB565; 1050 break; 1051 case 24: 1052 format = __DRI_IMAGE_FORMAT_XRGB8888; 1053 break; 1054 case 32: 1055 format = __DRI_IMAGE_FORMAT_ARGB8888; 1056 break; 1057 default: 1058 _eglError(EGL_BAD_PARAMETER, 1059 "dri2_create_image_khr: unsupported pixmap depth"); 1060 free(buffers_reply); 1061 free(geometry_reply); 1062 return NULL; 1063 } 1064 1065 dri2_img = malloc(sizeof *dri2_img); 1066 if (!dri2_img) { 1067 free(buffers_reply); 1068 free(geometry_reply); 1069 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr"); 1070 return EGL_NO_IMAGE_KHR; 1071 } 1072 1073 if (!_eglInitImage(&dri2_img->base, disp)) { 1074 free(buffers_reply); 1075 free(geometry_reply); 1076 free(dri2_img); 1077 return EGL_NO_IMAGE_KHR; 1078 } 1079 1080 stride = buffers[0].pitch / buffers[0].cpp; 1081 dri2_img->dri_image = 1082 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen, 1083 buffers_reply->width, 1084 buffers_reply->height, 1085 format, 1086 buffers[0].name, 1087 stride, 1088 dri2_img); 1089 1090 free(buffers_reply); 1091 free(geometry_reply); 1092 1093 return &dri2_img->base; 1094 } 1095 1096 static _EGLImage * 1097 dri2_x11_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp, 1098 _EGLContext *ctx, EGLenum target, 1099 EGLClientBuffer buffer, const EGLint *attr_list) 1100 { 1101 (void) drv; 1102 1103 switch (target) { 1104 case EGL_NATIVE_PIXMAP_KHR: 1105 return dri2_create_image_khr_pixmap(disp, ctx, buffer, attr_list); 1106 default: 1107 return dri2_create_image_khr(drv, disp, ctx, target, buffer, attr_list); 1108 } 1109 } 1110 1111 static EGLBoolean 1112 dri2_x11_get_sync_values(_EGLDisplay *display, _EGLSurface *surface, 1113 EGLuint64KHR *ust, EGLuint64KHR *msc, 1114 EGLuint64KHR *sbc) 1115 { 1116 struct dri2_egl_display *dri2_dpy = dri2_egl_display(display); 1117 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surface); 1118 xcb_dri2_get_msc_cookie_t cookie; 1119 xcb_dri2_get_msc_reply_t *reply; 1120 1121 cookie = xcb_dri2_get_msc(dri2_dpy->conn, dri2_surf->drawable); 1122 reply = xcb_dri2_get_msc_reply(dri2_dpy->conn, cookie, NULL); 1123 1124 if (!reply) { 1125 _eglError(EGL_BAD_ACCESS, __func__); 1126 return EGL_FALSE; 1127 } 1128 1129 *ust = ((EGLuint64KHR) reply->ust_hi << 32) | reply->ust_lo; 1130 *msc = ((EGLuint64KHR) reply->msc_hi << 32) | reply->msc_lo; 1131 *sbc = ((EGLuint64KHR) reply->sbc_hi << 32) | reply->sbc_lo; 1132 free(reply); 1133 1134 return EGL_TRUE; 1135 } 1136 1137 static struct dri2_egl_display_vtbl dri2_x11_swrast_display_vtbl = { 1138 .authenticate = NULL, 1139 .create_window_surface = dri2_x11_create_window_surface, 1140 .create_pixmap_surface = dri2_x11_create_pixmap_surface, 1141 .create_pbuffer_surface = dri2_x11_create_pbuffer_surface, 1142 .destroy_surface = dri2_x11_destroy_surface, 1143 .create_image = dri2_fallback_create_image_khr, 1144 .swap_interval = dri2_fallback_swap_interval, 1145 .swap_buffers = dri2_x11_swap_buffers, 1146 .swap_buffers_region = dri2_fallback_swap_buffers_region, 1147 .post_sub_buffer = dri2_fallback_post_sub_buffer, 1148 .copy_buffers = dri2_x11_copy_buffers, 1149 .query_buffer_age = dri2_fallback_query_buffer_age, 1150 .query_surface = dri2_query_surface, 1151 .create_wayland_buffer_from_image = dri2_fallback_create_wayland_buffer_from_image, 1152 .get_sync_values = dri2_fallback_get_sync_values, 1153 .get_dri_drawable = dri2_surface_get_dri_drawable, 1154 }; 1155 1156 static struct dri2_egl_display_vtbl dri2_x11_display_vtbl = { 1157 .authenticate = dri2_x11_authenticate, 1158 .create_window_surface = dri2_x11_create_window_surface, 1159 .create_pixmap_surface = dri2_x11_create_pixmap_surface, 1160 .create_pbuffer_surface = dri2_x11_create_pbuffer_surface, 1161 .destroy_surface = dri2_x11_destroy_surface, 1162 .create_image = dri2_x11_create_image_khr, 1163 .swap_interval = dri2_x11_swap_interval, 1164 .swap_buffers = dri2_x11_swap_buffers, 1165 .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage, 1166 .swap_buffers_region = dri2_x11_swap_buffers_region, 1167 .post_sub_buffer = dri2_x11_post_sub_buffer, 1168 .copy_buffers = dri2_x11_copy_buffers, 1169 .query_buffer_age = dri2_fallback_query_buffer_age, 1170 .query_surface = dri2_query_surface, 1171 .create_wayland_buffer_from_image = dri2_fallback_create_wayland_buffer_from_image, 1172 .get_sync_values = dri2_x11_get_sync_values, 1173 .get_dri_drawable = dri2_surface_get_dri_drawable, 1174 }; 1175 1176 static const __DRIswrastLoaderExtension swrast_loader_extension = { 1177 .base = { __DRI_SWRAST_LOADER, 1 }, 1178 1179 .getDrawableInfo = swrastGetDrawableInfo, 1180 .putImage = swrastPutImage, 1181 .getImage = swrastGetImage, 1182 }; 1183 1184 static const __DRIextension *swrast_loader_extensions[] = { 1185 &swrast_loader_extension.base, 1186 NULL, 1187 }; 1188 1189 static EGLBoolean 1190 dri2_get_xcb_connection(_EGLDriver *drv, _EGLDisplay *disp, 1191 struct dri2_egl_display *dri2_dpy) 1192 { 1193 xcb_screen_iterator_t s; 1194 int screen = 0; 1195 const char *msg; 1196 1197 disp->DriverData = (void *) dri2_dpy; 1198 if (disp->PlatformDisplay == NULL) { 1199 dri2_dpy->conn = xcb_connect(NULL, &screen); 1200 dri2_dpy->own_device = true; 1201 } else { 1202 Display *dpy = disp->PlatformDisplay; 1203 1204 dri2_dpy->conn = XGetXCBConnection(dpy); 1205 screen = DefaultScreen(dpy); 1206 } 1207 1208 if (!dri2_dpy->conn || xcb_connection_has_error(dri2_dpy->conn)) { 1209 msg = "xcb_connect failed"; 1210 goto disconnect; 1211 } 1212 1213 s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn)); 1214 dri2_dpy->screen = get_xcb_screen(s, screen); 1215 if (!dri2_dpy->screen) { 1216 msg = "failed to get xcb screen"; 1217 goto disconnect; 1218 } 1219 1220 return EGL_TRUE; 1221 disconnect: 1222 if (disp->PlatformDisplay == NULL) 1223 xcb_disconnect(dri2_dpy->conn); 1224 1225 return _eglError(EGL_BAD_ALLOC, msg); 1226 } 1227 1228 static EGLBoolean 1229 dri2_initialize_x11_swrast(_EGLDriver *drv, _EGLDisplay *disp) 1230 { 1231 struct dri2_egl_display *dri2_dpy; 1232 1233 dri2_dpy = calloc(1, sizeof *dri2_dpy); 1234 if (!dri2_dpy) 1235 return _eglError(EGL_BAD_ALLOC, "eglInitialize"); 1236 1237 if (!dri2_get_xcb_connection(drv, disp, dri2_dpy)) 1238 goto cleanup_dpy; 1239 1240 /* 1241 * Every hardware driver_name is set using strdup. Doing the same in 1242 * here will allow is to simply free the memory at dri2_terminate(). 1243 */ 1244 dri2_dpy->fd = -1; 1245 dri2_dpy->driver_name = strdup("swrast"); 1246 if (!dri2_load_driver_swrast(disp)) 1247 goto cleanup_conn; 1248 1249 dri2_dpy->loader_extensions = swrast_loader_extensions; 1250 1251 if (!dri2_create_screen(disp)) 1252 goto cleanup_driver; 1253 1254 if (!dri2_x11_add_configs_for_visuals(dri2_dpy, disp, true)) 1255 goto cleanup_configs; 1256 1257 /* Fill vtbl last to prevent accidentally calling virtual function during 1258 * initialization. 1259 */ 1260 dri2_dpy->vtbl = &dri2_x11_swrast_display_vtbl; 1261 1262 return EGL_TRUE; 1263 1264 cleanup_configs: 1265 _eglCleanupDisplay(disp); 1266 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen); 1267 cleanup_driver: 1268 dlclose(dri2_dpy->driver); 1269 cleanup_conn: 1270 free(dri2_dpy->driver_name); 1271 if (disp->PlatformDisplay == NULL) 1272 xcb_disconnect(dri2_dpy->conn); 1273 cleanup_dpy: 1274 free(dri2_dpy); 1275 disp->DriverData = NULL; 1276 1277 return EGL_FALSE; 1278 } 1279 1280 static void 1281 dri2_x11_setup_swap_interval(struct dri2_egl_display *dri2_dpy) 1282 { 1283 GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1; 1284 int arbitrary_max_interval = 1000; 1285 1286 /* default behavior for no SwapBuffers support: no vblank syncing 1287 * either. 1288 */ 1289 dri2_dpy->min_swap_interval = 0; 1290 dri2_dpy->max_swap_interval = 0; 1291 1292 if (!dri2_dpy->swap_available) 1293 return; 1294 1295 /* If we do have swapbuffers, then we can support pretty much any swap 1296 * interval, but we allow driconf to override applications. 1297 */ 1298 if (dri2_dpy->config) 1299 dri2_dpy->config->configQueryi(dri2_dpy->dri_screen, 1300 "vblank_mode", &vblank_mode); 1301 switch (vblank_mode) { 1302 case DRI_CONF_VBLANK_NEVER: 1303 dri2_dpy->min_swap_interval = 0; 1304 dri2_dpy->max_swap_interval = 0; 1305 dri2_dpy->default_swap_interval = 0; 1306 break; 1307 case DRI_CONF_VBLANK_ALWAYS_SYNC: 1308 dri2_dpy->min_swap_interval = 1; 1309 dri2_dpy->max_swap_interval = arbitrary_max_interval; 1310 dri2_dpy->default_swap_interval = 1; 1311 break; 1312 case DRI_CONF_VBLANK_DEF_INTERVAL_0: 1313 dri2_dpy->min_swap_interval = 0; 1314 dri2_dpy->max_swap_interval = arbitrary_max_interval; 1315 dri2_dpy->default_swap_interval = 0; 1316 break; 1317 default: 1318 case DRI_CONF_VBLANK_DEF_INTERVAL_1: 1319 dri2_dpy->min_swap_interval = 0; 1320 dri2_dpy->max_swap_interval = arbitrary_max_interval; 1321 dri2_dpy->default_swap_interval = 1; 1322 break; 1323 } 1324 } 1325 1326 #ifdef HAVE_DRI3 1327 1328 static const __DRIextension *dri3_image_loader_extensions[] = { 1329 &dri3_image_loader_extension.base, 1330 &image_lookup_extension.base, 1331 &use_invalidate.base, 1332 NULL, 1333 }; 1334 1335 static EGLBoolean 1336 dri2_initialize_x11_dri3(_EGLDriver *drv, _EGLDisplay *disp) 1337 { 1338 struct dri2_egl_display *dri2_dpy; 1339 1340 dri2_dpy = calloc(1, sizeof *dri2_dpy); 1341 if (!dri2_dpy) 1342 return _eglError(EGL_BAD_ALLOC, "eglInitialize"); 1343 1344 if (!dri2_get_xcb_connection(drv, disp, dri2_dpy)) 1345 goto cleanup_dpy; 1346 1347 if (!dri3_x11_connect(dri2_dpy)) 1348 goto cleanup_conn; 1349 1350 if (!dri2_load_driver_dri3(disp)) 1351 goto cleanup_conn; 1352 1353 dri2_dpy->loader_extensions = dri3_image_loader_extensions; 1354 1355 dri2_dpy->swap_available = true; 1356 dri2_dpy->invalidate_available = true; 1357 1358 if (!dri2_create_screen(disp)) 1359 goto cleanup_fd; 1360 1361 dri2_x11_setup_swap_interval(dri2_dpy); 1362 1363 if (!dri2_dpy->is_different_gpu) 1364 disp->Extensions.KHR_image_pixmap = EGL_TRUE; 1365 disp->Extensions.NOK_texture_from_pixmap = EGL_TRUE; 1366 disp->Extensions.CHROMIUM_sync_control = EGL_TRUE; 1367 disp->Extensions.EXT_buffer_age = EGL_TRUE; 1368 1369 dri2_set_WL_bind_wayland_display(drv, disp); 1370 1371 if (!dri2_x11_add_configs_for_visuals(dri2_dpy, disp, false)) 1372 goto cleanup_configs; 1373 1374 dri2_dpy->loader_dri3_ext.core = dri2_dpy->core; 1375 dri2_dpy->loader_dri3_ext.image_driver = dri2_dpy->image_driver; 1376 dri2_dpy->loader_dri3_ext.flush = dri2_dpy->flush; 1377 dri2_dpy->loader_dri3_ext.tex_buffer = dri2_dpy->tex_buffer; 1378 dri2_dpy->loader_dri3_ext.image = dri2_dpy->image; 1379 dri2_dpy->loader_dri3_ext.config = dri2_dpy->config; 1380 1381 /* Fill vtbl last to prevent accidentally calling virtual function during 1382 * initialization. 1383 */ 1384 dri2_dpy->vtbl = &dri3_x11_display_vtbl; 1385 1386 _eglLog(_EGL_INFO, "Using DRI3"); 1387 1388 return EGL_TRUE; 1389 1390 cleanup_configs: 1391 _eglCleanupDisplay(disp); 1392 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen); 1393 dlclose(dri2_dpy->driver); 1394 cleanup_fd: 1395 close(dri2_dpy->fd); 1396 cleanup_conn: 1397 if (disp->PlatformDisplay == NULL) 1398 xcb_disconnect(dri2_dpy->conn); 1399 cleanup_dpy: 1400 free(dri2_dpy); 1401 disp->DriverData = NULL; 1402 1403 return EGL_FALSE; 1404 } 1405 #endif 1406 1407 static const __DRIdri2LoaderExtension dri2_loader_extension_old = { 1408 .base = { __DRI_DRI2_LOADER, 2 }, 1409 1410 .getBuffers = dri2_x11_get_buffers, 1411 .flushFrontBuffer = dri2_x11_flush_front_buffer, 1412 .getBuffersWithFormat = NULL, 1413 }; 1414 1415 static const __DRIdri2LoaderExtension dri2_loader_extension = { 1416 .base = { __DRI_DRI2_LOADER, 3 }, 1417 1418 .getBuffers = dri2_x11_get_buffers, 1419 .flushFrontBuffer = dri2_x11_flush_front_buffer, 1420 .getBuffersWithFormat = dri2_x11_get_buffers_with_format, 1421 }; 1422 1423 static const __DRIextension *dri2_loader_extensions_old[] = { 1424 &dri2_loader_extension_old.base, 1425 &image_lookup_extension.base, 1426 NULL, 1427 }; 1428 1429 static const __DRIextension *dri2_loader_extensions[] = { 1430 &dri2_loader_extension.base, 1431 &image_lookup_extension.base, 1432 NULL, 1433 }; 1434 1435 static EGLBoolean 1436 dri2_initialize_x11_dri2(_EGLDriver *drv, _EGLDisplay *disp) 1437 { 1438 struct dri2_egl_display *dri2_dpy; 1439 1440 dri2_dpy = calloc(1, sizeof *dri2_dpy); 1441 if (!dri2_dpy) 1442 return _eglError(EGL_BAD_ALLOC, "eglInitialize"); 1443 1444 if (!dri2_get_xcb_connection(drv, disp, dri2_dpy)) 1445 goto cleanup_dpy; 1446 1447 if (!dri2_x11_connect(dri2_dpy)) 1448 goto cleanup_conn; 1449 1450 if (!dri2_load_driver(disp)) 1451 goto cleanup_fd; 1452 1453 if (dri2_dpy->dri2_minor >= 1) 1454 dri2_dpy->loader_extensions = dri2_loader_extensions; 1455 else 1456 dri2_dpy->loader_extensions = dri2_loader_extensions_old; 1457 1458 dri2_dpy->swap_available = (dri2_dpy->dri2_minor >= 2); 1459 dri2_dpy->invalidate_available = (dri2_dpy->dri2_minor >= 3); 1460 1461 if (!dri2_create_screen(disp)) 1462 goto cleanup_driver; 1463 1464 dri2_x11_setup_swap_interval(dri2_dpy); 1465 1466 disp->Extensions.KHR_image_pixmap = EGL_TRUE; 1467 disp->Extensions.NOK_swap_region = EGL_TRUE; 1468 disp->Extensions.NOK_texture_from_pixmap = EGL_TRUE; 1469 disp->Extensions.NV_post_sub_buffer = EGL_TRUE; 1470 disp->Extensions.CHROMIUM_sync_control = EGL_TRUE; 1471 1472 dri2_set_WL_bind_wayland_display(drv, disp); 1473 1474 if (!dri2_x11_add_configs_for_visuals(dri2_dpy, disp, true)) 1475 goto cleanup_configs; 1476 1477 /* Fill vtbl last to prevent accidentally calling virtual function during 1478 * initialization. 1479 */ 1480 dri2_dpy->vtbl = &dri2_x11_display_vtbl; 1481 1482 _eglLog(_EGL_INFO, "Using DRI2"); 1483 1484 return EGL_TRUE; 1485 1486 cleanup_configs: 1487 _eglCleanupDisplay(disp); 1488 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen); 1489 cleanup_driver: 1490 dlclose(dri2_dpy->driver); 1491 cleanup_fd: 1492 close(dri2_dpy->fd); 1493 cleanup_conn: 1494 if (disp->PlatformDisplay == NULL) 1495 xcb_disconnect(dri2_dpy->conn); 1496 cleanup_dpy: 1497 free(dri2_dpy); 1498 disp->DriverData = NULL; 1499 1500 return EGL_FALSE; 1501 } 1502 1503 EGLBoolean 1504 dri2_initialize_x11(_EGLDriver *drv, _EGLDisplay *disp) 1505 { 1506 EGLBoolean initialized = EGL_FALSE; 1507 1508 if (!getenv("LIBGL_ALWAYS_SOFTWARE")) { 1509 #ifdef HAVE_DRI3 1510 if (!getenv("LIBGL_DRI3_DISABLE")) 1511 initialized = dri2_initialize_x11_dri3(drv, disp); 1512 #endif 1513 1514 if (!initialized) 1515 initialized = dri2_initialize_x11_dri2(drv, disp); 1516 } 1517 1518 if (!initialized) 1519 initialized = dri2_initialize_x11_swrast(drv, disp); 1520 1521 return initialized; 1522 } 1523 1524
