1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #define ATRACE_TAG ATRACE_TAG_GRAPHICS 18 #define LOG_TAG "hwcomposer-drm" 19 20 #include "drm_hwcomposer.h" 21 #include "drmresources.h" 22 #include "gl_compositor.h" 23 #include "importer.h" 24 #include "vsyncworker.h" 25 26 #include <errno.h> 27 #include <fcntl.h> 28 #include <list> 29 #include <map> 30 #include <pthread.h> 31 #include <stdlib.h> 32 #include <sys/param.h> 33 #include <sys/resource.h> 34 #include <xf86drm.h> 35 #include <xf86drmMode.h> 36 37 #include <cutils/log.h> 38 #include <cutils/properties.h> 39 #include <hardware/hardware.h> 40 #include <hardware/hwcomposer.h> 41 #include <sw_sync.h> 42 #include <sync/sync.h> 43 #include <ui/GraphicBuffer.h> 44 #include <ui/PixelFormat.h> 45 #include <utils/Trace.h> 46 47 #define UM_PER_INCH 25400 48 #define HWC_FB_BUFFERS 3 49 50 namespace android { 51 52 struct hwc_drm_display_framebuffer { 53 hwc_drm_display_framebuffer() : release_fence_fd_(-1) { 54 } 55 56 ~hwc_drm_display_framebuffer() { 57 if (release_fence_fd() >= 0) 58 close(release_fence_fd()); 59 } 60 61 bool is_valid() { 62 return buffer_ != NULL; 63 } 64 65 sp<GraphicBuffer> buffer() { 66 return buffer_; 67 } 68 69 int release_fence_fd() { 70 return release_fence_fd_; 71 } 72 73 void set_release_fence_fd(int fd) { 74 if (release_fence_fd_ >= 0) 75 close(release_fence_fd_); 76 release_fence_fd_ = fd; 77 } 78 79 bool Allocate(uint32_t w, uint32_t h) { 80 if (is_valid()) { 81 if (buffer_->getWidth() == w && buffer_->getHeight() == h) 82 return true; 83 84 if (release_fence_fd_ >= 0) { 85 if (sync_wait(release_fence_fd_, -1) != 0) { 86 return false; 87 } 88 } 89 Clear(); 90 } 91 buffer_ = new GraphicBuffer(w, h, android::PIXEL_FORMAT_RGBA_8888, 92 GRALLOC_USAGE_HW_FB | GRALLOC_USAGE_HW_RENDER | 93 GRALLOC_USAGE_HW_COMPOSER); 94 release_fence_fd_ = -1; 95 return is_valid(); 96 } 97 98 void Clear() { 99 if (!is_valid()) 100 return; 101 102 if (release_fence_fd_ >= 0) { 103 close(release_fence_fd_); 104 release_fence_fd_ = -1; 105 } 106 107 buffer_.clear(); 108 } 109 110 int WaitReleased(int timeout_milliseconds) { 111 if (!is_valid()) 112 return 0; 113 if (release_fence_fd_ < 0) 114 return 0; 115 116 int ret = sync_wait(release_fence_fd_, timeout_milliseconds); 117 return ret; 118 } 119 120 private: 121 sp<GraphicBuffer> buffer_; 122 int release_fence_fd_; 123 }; 124 125 126 typedef struct hwc_drm_display { 127 struct hwc_context_t *ctx; 128 int display; 129 130 std::vector<uint32_t> config_ids; 131 132 VSyncWorker vsync_worker; 133 134 hwc_drm_display_framebuffer fb_chain[HWC_FB_BUFFERS]; 135 int fb_idx; 136 } hwc_drm_display_t; 137 138 struct hwc_context_t { 139 // map of display:hwc_drm_display_t 140 typedef std::map<int, hwc_drm_display_t> DisplayMap; 141 typedef DisplayMap::iterator DisplayMapIter; 142 143 hwc_context_t() : procs(NULL), importer(NULL) { 144 } 145 146 ~hwc_context_t() { 147 delete importer; 148 } 149 150 hwc_composer_device_1_t device; 151 hwc_procs_t const *procs; 152 153 DisplayMap displays; 154 DrmResources drm; 155 Importer *importer; 156 GLCompositor pre_compositor; 157 }; 158 159 static void hwc_dump(struct hwc_composer_device_1* dev, char *buff, 160 int buff_len) { 161 struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common; 162 std::ostringstream out; 163 164 ctx->drm.compositor()->Dump(&out); 165 std::string out_str = out.str(); 166 strncpy(buff, out_str.c_str(), std::min((size_t)buff_len, out_str.length())); 167 } 168 169 static int hwc_prepare(hwc_composer_device_1_t *dev, size_t num_displays, 170 hwc_display_contents_1_t **display_contents) { 171 struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common; 172 for (int i = 0; i < (int)num_displays; ++i) { 173 if (!display_contents[i]) 174 continue; 175 176 DrmCrtc *crtc = ctx->drm.GetCrtcForDisplay(i); 177 if (!crtc) { 178 ALOGE("No crtc for display %d", i); 179 return -ENODEV; 180 } 181 182 int num_layers = display_contents[i]->numHwLayers; 183 for (int j = 0; j < num_layers; j++) { 184 hwc_layer_1_t *layer = &display_contents[i]->hwLayers[j]; 185 186 if (layer->compositionType == HWC_FRAMEBUFFER) 187 layer->compositionType = HWC_OVERLAY; 188 } 189 } 190 191 return 0; 192 } 193 194 static void hwc_set_cleanup(size_t num_displays, 195 hwc_display_contents_1_t **display_contents, 196 Composition *composition) { 197 for (int i = 0; i < (int)num_displays; ++i) { 198 if (!display_contents[i]) 199 continue; 200 201 hwc_display_contents_1_t *dc = display_contents[i]; 202 for (size_t j = 0; j < dc->numHwLayers; ++j) { 203 hwc_layer_1_t *layer = &dc->hwLayers[j]; 204 if (layer->acquireFenceFd >= 0) { 205 close(layer->acquireFenceFd); 206 layer->acquireFenceFd = -1; 207 } 208 } 209 if (dc->outbufAcquireFenceFd >= 0) { 210 close(dc->outbufAcquireFenceFd); 211 dc->outbufAcquireFenceFd = -1; 212 } 213 } 214 215 delete composition; 216 } 217 218 static int hwc_add_layer(int display, hwc_context_t *ctx, hwc_layer_1_t *layer, 219 Composition *composition) { 220 hwc_drm_bo_t bo; 221 int ret = ctx->importer->ImportBuffer(layer->handle, &bo); 222 if (ret) { 223 ALOGE("Failed to import handle to bo %d", ret); 224 return ret; 225 } 226 227 ret = composition->AddLayer(display, layer, &bo); 228 if (!ret) 229 return 0; 230 231 int destroy_ret = ctx->importer->ReleaseBuffer(&bo); 232 if (destroy_ret) 233 ALOGE("Failed to destroy buffer %d", destroy_ret); 234 235 return ret; 236 } 237 238 static int hwc_set(hwc_composer_device_1_t *dev, size_t num_displays, 239 hwc_display_contents_1_t **display_contents) { 240 ATRACE_CALL(); 241 struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common; 242 Composition *composition = 243 ctx->drm.compositor()->CreateComposition(ctx->importer); 244 if (!composition) { 245 ALOGE("Drm composition init failed"); 246 hwc_set_cleanup(num_displays, display_contents, NULL); 247 return -EINVAL; 248 } 249 250 int ret; 251 for (int i = 0; i < (int)num_displays; ++i) { 252 if (!display_contents[i]) 253 continue; 254 255 hwc_display_contents_1_t *dc = display_contents[i]; 256 int j; 257 unsigned num_layers = 0; 258 unsigned num_dc_layers = dc->numHwLayers; 259 for (j = 0; j < (int)num_dc_layers; ++j) { 260 hwc_layer_1_t *layer = &dc->hwLayers[j]; 261 if (layer->flags & HWC_SKIP_LAYER) 262 continue; 263 if (layer->compositionType == HWC_OVERLAY) 264 num_layers++; 265 } 266 267 unsigned num_planes = composition->GetRemainingLayers(i, num_layers); 268 bool use_pre_compositor = false; 269 270 if (num_layers > num_planes) { 271 use_pre_compositor = true; 272 // Reserve one of the planes for the result of the pre compositor. 273 num_planes--; 274 } 275 276 for (j = 0; num_planes && j < (int)num_dc_layers; ++j) { 277 hwc_layer_1_t *layer = &dc->hwLayers[j]; 278 if (layer->flags & HWC_SKIP_LAYER) 279 continue; 280 if (layer->compositionType != HWC_OVERLAY) 281 continue; 282 283 ret = hwc_add_layer(i, ctx, layer, composition); 284 if (ret) { 285 ALOGE("Add layer failed %d", ret); 286 hwc_set_cleanup(num_displays, display_contents, composition); 287 return ret; 288 } 289 --num_planes; 290 } 291 292 int last_comp_layer = j; 293 294 if (use_pre_compositor) { 295 hwc_drm_display_t *hd = &ctx->displays[i]; 296 struct hwc_drm_display_framebuffer *fb = &hd->fb_chain[hd->fb_idx]; 297 ret = fb->WaitReleased(-1); 298 if (ret) { 299 ALOGE("Failed to wait for framebuffer %d", ret); 300 hwc_set_cleanup(num_displays, display_contents, composition); 301 return ret; 302 } 303 304 DrmConnector *connector = ctx->drm.GetConnectorForDisplay(i); 305 if (!connector) { 306 ALOGE("No connector for display %d", i); 307 hwc_set_cleanup(num_displays, display_contents, composition); 308 return -ENODEV; 309 } 310 311 const DrmMode &mode = connector->active_mode(); 312 if (!fb->Allocate(mode.h_display(), mode.v_display())) { 313 ALOGE("Failed to allocate framebuffer with size %dx%d", 314 mode.h_display(), mode.v_display()); 315 hwc_set_cleanup(num_displays, display_contents, composition); 316 return -EINVAL; 317 } 318 319 sp<GraphicBuffer> fb_buffer = fb->buffer(); 320 if (fb_buffer == NULL) { 321 ALOGE("Framebuffer is NULL"); 322 hwc_set_cleanup(num_displays, display_contents, composition); 323 return -EINVAL; 324 } 325 326 Targeting *targeting = ctx->pre_compositor.targeting(); 327 if (targeting == NULL) { 328 ALOGE("Pre-compositor does not support targeting"); 329 hwc_set_cleanup(num_displays, display_contents, composition); 330 return -EINVAL; 331 } 332 333 int target = targeting->CreateTarget(fb_buffer); 334 targeting->SetTarget(target); 335 336 Composition *pre_composition = ctx->pre_compositor.CreateComposition(ctx->importer); 337 if (pre_composition == NULL) { 338 ALOGE("Failed to create pre-composition"); 339 targeting->ForgetTarget(target); 340 hwc_set_cleanup(num_displays, display_contents, composition); 341 return -EINVAL; 342 } 343 344 for (j = last_comp_layer; j < (int)num_dc_layers; ++j) { 345 hwc_layer_1_t *layer = &dc->hwLayers[j]; 346 if (layer->flags & HWC_SKIP_LAYER) 347 continue; 348 if (layer->compositionType != HWC_OVERLAY) 349 continue; 350 ret = hwc_add_layer(i, ctx, layer, pre_composition); 351 if (ret) { 352 ALOGE("Add layer failed %d", ret); 353 delete pre_composition; 354 targeting->ForgetTarget(target); 355 hwc_set_cleanup(num_displays, display_contents, composition); 356 return ret; 357 } 358 } 359 360 ret = ctx->pre_compositor.QueueComposition(pre_composition); 361 pre_composition = NULL; 362 363 targeting->ForgetTarget(target); 364 if (ret < 0 && ret != -EALREADY) { 365 ALOGE("Pre-composition failed %d", ret); 366 hwc_set_cleanup(num_displays, display_contents, composition); 367 return ret; 368 } 369 370 for (j = last_comp_layer; j < (int)num_dc_layers; ++j) { 371 hwc_layer_1_t *layer = &dc->hwLayers[j]; 372 if (layer->flags & HWC_SKIP_LAYER) 373 continue; 374 if (layer->compositionType != HWC_OVERLAY) 375 continue; 376 layer->acquireFenceFd = -1; 377 } 378 379 hwc_layer_1_t composite_layer; 380 hwc_rect_t visible_rect; 381 memset(&composite_layer, 0, sizeof(composite_layer)); 382 memset(&visible_rect, 0, sizeof(visible_rect)); 383 384 composite_layer.compositionType = HWC_OVERLAY; 385 composite_layer.handle = fb_buffer->getNativeBuffer()->handle; 386 composite_layer.sourceCropf.right = composite_layer.displayFrame.right = 387 visible_rect.right = fb_buffer->getWidth(); 388 composite_layer.sourceCropf.bottom = composite_layer.displayFrame.bottom = 389 visible_rect.bottom = fb_buffer->getHeight(); 390 composite_layer.visibleRegionScreen.numRects = 1; 391 composite_layer.visibleRegionScreen.rects = &visible_rect; 392 composite_layer.acquireFenceFd = ret == -EALREADY ? -1 : ret; 393 // A known invalid fd in case AddLayer does not modify this field. 394 composite_layer.releaseFenceFd = -1; 395 composite_layer.planeAlpha = 0xff; 396 397 ret = hwc_add_layer(i, ctx, &composite_layer, composition); 398 if (ret) { 399 ALOGE("Add layer failed %d", ret); 400 hwc_set_cleanup(num_displays, display_contents, composition); 401 return ret; 402 } 403 404 fb->set_release_fence_fd(composite_layer.releaseFenceFd); 405 hd->fb_idx = (hd->fb_idx + 1) % HWC_FB_BUFFERS; 406 } 407 } 408 409 ret = ctx->drm.compositor()->QueueComposition(composition); 410 composition = NULL; 411 if (ret) { 412 ALOGE("Failed to queue the composition"); 413 hwc_set_cleanup(num_displays, display_contents, NULL); 414 return ret; 415 } 416 hwc_set_cleanup(num_displays, display_contents, NULL); 417 return ret; 418 } 419 420 static int hwc_event_control(struct hwc_composer_device_1 *dev, int display, 421 int event, int enabled) { 422 if (event != HWC_EVENT_VSYNC || (enabled != 0 && enabled != 1)) 423 return -EINVAL; 424 425 struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common; 426 hwc_drm_display_t *hd = &ctx->displays[display]; 427 return hd->vsync_worker.VSyncControl(enabled); 428 } 429 430 static int hwc_set_power_mode(struct hwc_composer_device_1 *dev, int display, 431 int mode) { 432 struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common; 433 434 uint64_t dpmsValue = 0; 435 switch (mode) { 436 case HWC_POWER_MODE_OFF: 437 dpmsValue = DRM_MODE_DPMS_OFF; 438 break; 439 440 /* We can't support dozing right now, so go full on */ 441 case HWC_POWER_MODE_DOZE: 442 case HWC_POWER_MODE_DOZE_SUSPEND: 443 case HWC_POWER_MODE_NORMAL: 444 dpmsValue = DRM_MODE_DPMS_ON; 445 break; 446 }; 447 return ctx->drm.SetDpmsMode(display, dpmsValue); 448 } 449 450 static int hwc_query(struct hwc_composer_device_1 * /* dev */, int what, 451 int *value) { 452 switch (what) { 453 case HWC_BACKGROUND_LAYER_SUPPORTED: 454 *value = 0; /* TODO: We should do this */ 455 break; 456 case HWC_VSYNC_PERIOD: 457 ALOGW("Query for deprecated vsync value, returning 60Hz"); 458 *value = 1000 * 1000 * 1000 / 60; 459 break; 460 case HWC_DISPLAY_TYPES_SUPPORTED: 461 *value = HWC_DISPLAY_PRIMARY | HWC_DISPLAY_EXTERNAL; 462 break; 463 } 464 return 0; 465 } 466 467 static void hwc_register_procs(struct hwc_composer_device_1 *dev, 468 hwc_procs_t const *procs) { 469 struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common; 470 471 ctx->procs = procs; 472 473 for (hwc_context_t::DisplayMapIter iter = ctx->displays.begin(); 474 iter != ctx->displays.end(); ++iter) { 475 iter->second.vsync_worker.SetProcs(procs); 476 } 477 } 478 479 static int hwc_get_display_configs(struct hwc_composer_device_1 *dev, 480 int display, uint32_t *configs, 481 size_t *num_configs) { 482 if (!*num_configs) 483 return 0; 484 485 struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common; 486 hwc_drm_display_t *hd = &ctx->displays[display]; 487 hd->config_ids.clear(); 488 489 DrmConnector *connector = ctx->drm.GetConnectorForDisplay(display); 490 if (!connector) { 491 ALOGE("Failed to get connector for display %d", display); 492 return -ENODEV; 493 } 494 495 int ret = connector->UpdateModes(); 496 if (ret) { 497 ALOGE("Failed to update display modes %d", ret); 498 return ret; 499 } 500 501 for (DrmConnector::ModeIter iter = connector->begin_modes(); 502 iter != connector->end_modes(); ++iter) { 503 size_t idx = hd->config_ids.size(); 504 if (idx == *num_configs) 505 break; 506 hd->config_ids.push_back(iter->id()); 507 configs[idx] = iter->id(); 508 } 509 *num_configs = hd->config_ids.size(); 510 return *num_configs == 0 ? -1 : 0; 511 } 512 513 static int hwc_get_display_attributes(struct hwc_composer_device_1 *dev, 514 int display, uint32_t config, 515 const uint32_t *attributes, 516 int32_t *values) { 517 struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common; 518 DrmConnector *c = ctx->drm.GetConnectorForDisplay(display); 519 if (!c) { 520 ALOGE("Failed to get DrmConnector for display %d", display); 521 return -ENODEV; 522 } 523 DrmMode mode; 524 for (DrmConnector::ModeIter iter = c->begin_modes(); iter != c->end_modes(); 525 ++iter) { 526 if (iter->id() == config) { 527 mode = *iter; 528 break; 529 } 530 } 531 if (mode.id() == 0) { 532 ALOGE("Failed to find active mode for display %d", display); 533 return -ENOENT; 534 } 535 536 uint32_t mm_width = c->mm_width(); 537 uint32_t mm_height = c->mm_height(); 538 for (int i = 0; attributes[i] != HWC_DISPLAY_NO_ATTRIBUTE; ++i) { 539 switch (attributes[i]) { 540 case HWC_DISPLAY_VSYNC_PERIOD: 541 values[i] = 1000 * 1000 * 1000 / mode.v_refresh(); 542 break; 543 case HWC_DISPLAY_WIDTH: 544 values[i] = mode.h_display(); 545 break; 546 case HWC_DISPLAY_HEIGHT: 547 values[i] = mode.v_display(); 548 break; 549 case HWC_DISPLAY_DPI_X: 550 /* Dots per 1000 inches */ 551 values[i] = mm_width ? (mode.h_display() * UM_PER_INCH) / mm_width : 0; 552 break; 553 case HWC_DISPLAY_DPI_Y: 554 /* Dots per 1000 inches */ 555 values[i] = 556 mm_height ? (mode.v_display() * UM_PER_INCH) / mm_height : 0; 557 break; 558 } 559 } 560 return 0; 561 } 562 563 static int hwc_get_active_config(struct hwc_composer_device_1 *dev, 564 int display) { 565 struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common; 566 DrmConnector *c = ctx->drm.GetConnectorForDisplay(display); 567 if (!c) { 568 ALOGE("Failed to get DrmConnector for display %d", display); 569 return -ENODEV; 570 } 571 572 DrmMode mode = c->active_mode(); 573 hwc_drm_display_t *hd = &ctx->displays[display]; 574 for (size_t i = 0; i < hd->config_ids.size(); ++i) { 575 if (hd->config_ids[i] == mode.id()) 576 return i; 577 } 578 return -1; 579 } 580 581 static int hwc_set_active_config(struct hwc_composer_device_1 *dev, int display, 582 int index) { 583 struct hwc_context_t *ctx = (struct hwc_context_t *)&dev->common; 584 hwc_drm_display_t *hd = &ctx->displays[display]; 585 if (index >= (int)hd->config_ids.size()) { 586 ALOGE("Invalid config index %d passed in", index); 587 return -EINVAL; 588 } 589 590 DrmConnector *c = ctx->drm.GetConnectorForDisplay(display); 591 if (!c) { 592 ALOGE("Failed to get connector for display %d", display); 593 return -ENODEV; 594 } 595 DrmMode mode; 596 for (DrmConnector::ModeIter iter = c->begin_modes(); iter != c->end_modes(); 597 ++iter) { 598 if (iter->id() == hd->config_ids[index]) { 599 mode = *iter; 600 break; 601 } 602 } 603 if (mode.id() != hd->config_ids[index]) { 604 ALOGE("Could not find active mode for %d/%d", index, hd->config_ids[index]); 605 return -ENOENT; 606 } 607 int ret = ctx->drm.SetDisplayActiveMode(display, mode); 608 if (ret) { 609 ALOGE("Failed to set active config %d", ret); 610 return ret; 611 } 612 return ret; 613 } 614 615 static int hwc_device_close(struct hw_device_t *dev) { 616 struct hwc_context_t *ctx = (struct hwc_context_t *)dev; 617 delete ctx; 618 return 0; 619 } 620 621 /* 622 * TODO: This function sets the active config to the first one in the list. This 623 * should be fixed such that it selects the preferred mode for the display, or 624 * some other, saner, method of choosing the config. 625 */ 626 static int hwc_set_initial_config(hwc_drm_display_t *hd) { 627 uint32_t config; 628 size_t num_configs = 1; 629 int ret = hwc_get_display_configs(&hd->ctx->device, hd->display, &config, 630 &num_configs); 631 if (ret || !num_configs) 632 return 0; 633 634 ret = hwc_set_active_config(&hd->ctx->device, hd->display, 0); 635 if (ret) { 636 ALOGE("Failed to set active config d=%d ret=%d", hd->display, ret); 637 return ret; 638 } 639 640 return ret; 641 } 642 643 static int hwc_initialize_display(struct hwc_context_t *ctx, int display) { 644 hwc_drm_display_t *hd = &ctx->displays[display]; 645 hd->ctx = ctx; 646 hd->display = display; 647 hd->fb_idx = 0; 648 649 int ret = hwc_set_initial_config(hd); 650 if (ret) { 651 ALOGE("Failed to set initial config for d=%d ret=%d", display, ret); 652 return ret; 653 } 654 655 ret = hd->vsync_worker.Init(&ctx->drm, display); 656 if (ret) { 657 ALOGE("Failed to create event worker for display %d %d\n", display, ret); 658 return ret; 659 } 660 661 return 0; 662 } 663 664 static int hwc_enumerate_displays(struct hwc_context_t *ctx) { 665 int ret; 666 for (DrmResources::ConnectorIter c = ctx->drm.begin_connectors(); 667 c != ctx->drm.end_connectors(); ++c) { 668 ret = hwc_initialize_display(ctx, (*c)->display()); 669 if (ret) { 670 ALOGE("Failed to initialize display %d", (*c)->display()); 671 return ret; 672 } 673 } 674 675 return 0; 676 } 677 678 static int hwc_device_open(const struct hw_module_t *module, const char *name, 679 struct hw_device_t **dev) { 680 if (strcmp(name, HWC_HARDWARE_COMPOSER)) { 681 ALOGE("Invalid module name- %s", name); 682 return -EINVAL; 683 } 684 685 struct hwc_context_t *ctx = new hwc_context_t(); 686 if (!ctx) { 687 ALOGE("Failed to allocate hwc context"); 688 return -ENOMEM; 689 } 690 691 int ret = ctx->drm.Init(); 692 if (ret) { 693 ALOGE("Can't initialize Drm object %d", ret); 694 delete ctx; 695 return ret; 696 } 697 698 ret = ctx->pre_compositor.Init(); 699 if (ret) { 700 ALOGE("Can't initialize OpenGL Compositor object %d", ret); 701 delete ctx; 702 return ret; 703 } 704 705 ctx->importer = Importer::CreateInstance(&ctx->drm); 706 if (!ctx->importer) { 707 ALOGE("Failed to create importer instance"); 708 delete ctx; 709 return ret; 710 } 711 712 ret = hwc_enumerate_displays(ctx); 713 if (ret) { 714 ALOGE("Failed to enumerate displays: %s", strerror(ret)); 715 delete ctx; 716 return ret; 717 } 718 719 ctx->device.common.tag = HARDWARE_DEVICE_TAG; 720 ctx->device.common.version = HWC_DEVICE_API_VERSION_1_4; 721 ctx->device.common.module = const_cast<hw_module_t *>(module); 722 ctx->device.common.close = hwc_device_close; 723 724 ctx->device.dump = hwc_dump; 725 ctx->device.prepare = hwc_prepare; 726 ctx->device.set = hwc_set; 727 ctx->device.eventControl = hwc_event_control; 728 ctx->device.setPowerMode = hwc_set_power_mode; 729 ctx->device.query = hwc_query; 730 ctx->device.registerProcs = hwc_register_procs; 731 ctx->device.getDisplayConfigs = hwc_get_display_configs; 732 ctx->device.getDisplayAttributes = hwc_get_display_attributes; 733 ctx->device.getActiveConfig = hwc_get_active_config; 734 ctx->device.setActiveConfig = hwc_set_active_config; 735 ctx->device.setCursorPositionAsync = NULL; /* TODO: Add cursor */ 736 737 *dev = &ctx->device.common; 738 739 return 0; 740 } 741 } 742 743 static struct hw_module_methods_t hwc_module_methods = { 744 open : android::hwc_device_open 745 }; 746 747 hwc_module_t HAL_MODULE_INFO_SYM = { 748 common : { 749 tag : HARDWARE_MODULE_TAG, 750 version_major : 1, 751 version_minor : 0, 752 id : HWC_HARDWARE_MODULE_ID, 753 name : "DRM hwcomposer module", 754 author : "The Android Open Source Project", 755 methods : &hwc_module_methods, 756 dso : NULL, 757 reserved : {0}, 758 } 759 }; 760
