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 "hwc-drm-display-compositor"
19
20 #include "drmdisplaycompositor.h"
21 #include "drmcrtc.h"
22 #include "drmplane.h"
23 #include "drmresources.h"
24 #include "glworker.h"
25
26 #include <pthread.h>
27 #include <sched.h>
28 #include <sstream>
29 #include <stdlib.h>
30 #include <time.h>
31 #include <vector>
32
33 #include <drm/drm_mode.h>
34 #include <cutils/log.h>
35 #include <sync/sync.h>
36 #include <utils/Trace.h>
37
38 #define DRM_DISPLAY_COMPOSITOR_MAX_QUEUE_DEPTH 2
39
40 namespace android {
41
Init(DrmHwcLayer * layers,size_t num_layers)42 void SquashState::Init(DrmHwcLayer *layers, size_t num_layers) {
43 generation_number_++;
44 valid_history_ = 0;
45 regions_.clear();
46 last_handles_.clear();
47
48 std::vector<DrmHwcRect<int>> in_rects;
49 for (size_t i = 0; i < num_layers; i++) {
50 DrmHwcLayer *layer = &layers[i];
51 in_rects.emplace_back(layer->display_frame);
52 last_handles_.push_back(layer->sf_handle);
53 }
54
55 std::vector<seperate_rects::RectSet<uint64_t, int>> out_regions;
56 seperate_rects::seperate_rects_64(in_rects, &out_regions);
57
58 for (const seperate_rects::RectSet<uint64_t, int> &out_region : out_regions) {
59 regions_.emplace_back();
60 Region ®ion = regions_.back();
61 region.rect = out_region.rect;
62 region.layer_refs = out_region.id_set.getBits();
63 }
64 }
65
GenerateHistory(DrmHwcLayer * layers,size_t num_layers,std::vector<bool> & changed_regions) const66 void SquashState::GenerateHistory(DrmHwcLayer *layers, size_t num_layers,
67 std::vector<bool> &changed_regions) const {
68 changed_regions.resize(regions_.size());
69 if (num_layers != last_handles_.size()) {
70 ALOGE("SquashState::GenerateHistory expected %zu layers but got %zu layers",
71 last_handles_.size(), num_layers);
72 return;
73 }
74 std::bitset<kMaxLayers> changed_layers;
75 for (size_t i = 0; i < last_handles_.size(); i++) {
76 DrmHwcLayer *layer = &layers[i];
77 if (last_handles_[i] != layer->sf_handle) {
78 changed_layers.set(i);
79 }
80 }
81
82 for (size_t i = 0; i < regions_.size(); i++) {
83 changed_regions[i] = (regions_[i].layer_refs & changed_layers).any();
84 }
85 }
86
StableRegionsWithMarginalHistory(const std::vector<bool> & changed_regions,std::vector<bool> & stable_regions) const87 void SquashState::StableRegionsWithMarginalHistory(
88 const std::vector<bool> &changed_regions,
89 std::vector<bool> &stable_regions) const {
90 stable_regions.resize(regions_.size());
91 for (size_t i = 0; i < regions_.size(); i++) {
92 stable_regions[i] = !changed_regions[i] && is_stable(i);
93 }
94 }
95
RecordHistory(DrmHwcLayer * layers,size_t num_layers,const std::vector<bool> & changed_regions)96 void SquashState::RecordHistory(DrmHwcLayer *layers, size_t num_layers,
97 const std::vector<bool> &changed_regions) {
98 if (num_layers != last_handles_.size()) {
99 ALOGE("SquashState::RecordHistory expected %zu layers but got %zu layers",
100 last_handles_.size(), num_layers);
101 return;
102 }
103 if (changed_regions.size() != regions_.size()) {
104 ALOGE("SquashState::RecordHistory expected %zu regions but got %zu regions",
105 regions_.size(), changed_regions.size());
106 return;
107 }
108
109 for (size_t i = 0; i < last_handles_.size(); i++) {
110 DrmHwcLayer *layer = &layers[i];
111 last_handles_[i] = layer->sf_handle;
112 }
113
114 for (size_t i = 0; i < regions_.size(); i++) {
115 regions_[i].change_history <<= 1;
116 regions_[i].change_history.set(/* LSB */ 0, changed_regions[i]);
117 }
118
119 valid_history_++;
120 }
121
RecordAndCompareSquashed(const std::vector<bool> & squashed_regions)122 bool SquashState::RecordAndCompareSquashed(
123 const std::vector<bool> &squashed_regions) {
124 if (squashed_regions.size() != regions_.size()) {
125 ALOGE(
126 "SquashState::RecordAndCompareSquashed expected %zu regions but got "
127 "%zu regions",
128 regions_.size(), squashed_regions.size());
129 return false;
130 }
131 bool changed = false;
132 for (size_t i = 0; i < regions_.size(); i++) {
133 if (regions_[i].squashed != squashed_regions[i]) {
134 regions_[i].squashed = squashed_regions[i];
135 changed = true;
136 }
137 }
138 return changed;
139 }
140
Dump(std::ostringstream * out) const141 void SquashState::Dump(std::ostringstream *out) const {
142 *out << "----SquashState generation=" << generation_number_
143 << " history=" << valid_history_ << "\n"
144 << " Regions: count=" << regions_.size() << "\n";
145 for (size_t i = 0; i < regions_.size(); i++) {
146 const Region ®ion = regions_[i];
147 *out << " [" << i << "]"
148 << " history=" << region.change_history << " rect";
149 region.rect.Dump(out);
150 *out << " layers=(";
151 bool first = true;
152 for (size_t layer_index = 0; layer_index < kMaxLayers; layer_index++) {
153 if ((region.layer_refs &
154 std::bitset<kMaxLayers>((size_t)1 << layer_index))
155 .any()) {
156 if (!first)
157 *out << " ";
158 first = false;
159 *out << layer_index;
160 }
161 }
162 *out << ")";
163 if (region.squashed)
164 *out << " squashed";
165 *out << "\n";
166 }
167 }
168
UsesSquash(const std::vector<DrmCompositionPlane> & comp_planes)169 static bool UsesSquash(const std::vector<DrmCompositionPlane> &comp_planes) {
170 return std::any_of(comp_planes.begin(), comp_planes.end(),
171 [](const DrmCompositionPlane &plane) {
172 return plane.source_layer ==
173 DrmCompositionPlane::kSourceSquash;
174 });
175 }
176
FrameWorker(DrmDisplayCompositor * compositor)177 DrmDisplayCompositor::FrameWorker::FrameWorker(DrmDisplayCompositor *compositor)
178 : Worker("frame-worker", HAL_PRIORITY_URGENT_DISPLAY),
179 compositor_(compositor) {
180 }
181
~FrameWorker()182 DrmDisplayCompositor::FrameWorker::~FrameWorker() {
183 }
184
Init()185 int DrmDisplayCompositor::FrameWorker::Init() {
186 return InitWorker();
187 }
188
QueueFrame(std::unique_ptr<DrmDisplayComposition> composition,int status)189 void DrmDisplayCompositor::FrameWorker::QueueFrame(
190 std::unique_ptr<DrmDisplayComposition> composition, int status) {
191 Lock();
192 FrameState frame;
193 frame.composition = std::move(composition);
194 frame.status = status;
195 frame_queue_.push(std::move(frame));
196 SignalLocked();
197 Unlock();
198 }
199
Routine()200 void DrmDisplayCompositor::FrameWorker::Routine() {
201 int ret = Lock();
202 if (ret) {
203 ALOGE("Failed to lock worker, %d", ret);
204 return;
205 }
206
207 int wait_ret = 0;
208 if (frame_queue_.empty()) {
209 wait_ret = WaitForSignalOrExitLocked();
210 }
211
212 FrameState frame;
213 if (!frame_queue_.empty()) {
214 frame = std::move(frame_queue_.front());
215 frame_queue_.pop();
216 }
217
218 ret = Unlock();
219 if (ret) {
220 ALOGE("Failed to unlock worker, %d", ret);
221 return;
222 }
223
224 if (wait_ret == -EINTR) {
225 return;
226 } else if (wait_ret) {
227 ALOGE("Failed to wait for signal, %d", wait_ret);
228 return;
229 }
230
231 compositor_->ApplyFrame(std::move(frame.composition), frame.status);
232 }
233
DrmDisplayCompositor()234 DrmDisplayCompositor::DrmDisplayCompositor()
235 : drm_(NULL),
236 display_(-1),
237 worker_(this),
238 frame_worker_(this),
239 initialized_(false),
240 active_(false),
241 needs_modeset_(false),
242 framebuffer_index_(0),
243 squash_framebuffer_index_(0),
244 dump_frames_composited_(0),
245 dump_last_timestamp_ns_(0) {
246 struct timespec ts;
247 if (clock_gettime(CLOCK_MONOTONIC, &ts))
248 return;
249 dump_last_timestamp_ns_ = ts.tv_sec * 1000 * 1000 * 1000 + ts.tv_nsec;
250 }
251
~DrmDisplayCompositor()252 DrmDisplayCompositor::~DrmDisplayCompositor() {
253 if (!initialized_)
254 return;
255
256 worker_.Exit();
257 frame_worker_.Exit();
258
259 int ret = pthread_mutex_lock(&lock_);
260 if (ret)
261 ALOGE("Failed to acquire compositor lock %d", ret);
262
263 while (!composite_queue_.empty()) {
264 composite_queue_.front().reset();
265 composite_queue_.pop();
266 }
267 active_composition_.reset();
268
269 ret = pthread_mutex_unlock(&lock_);
270 if (ret)
271 ALOGE("Failed to acquire compositor lock %d", ret);
272
273 pthread_mutex_destroy(&lock_);
274 }
275
Init(DrmResources * drm,int display)276 int DrmDisplayCompositor::Init(DrmResources *drm, int display) {
277 drm_ = drm;
278 display_ = display;
279
280 int ret = pthread_mutex_init(&lock_, NULL);
281 if (ret) {
282 ALOGE("Failed to initialize drm compositor lock %d\n", ret);
283 return ret;
284 }
285 ret = worker_.Init();
286 if (ret) {
287 pthread_mutex_destroy(&lock_);
288 ALOGE("Failed to initialize compositor worker %d\n", ret);
289 return ret;
290 }
291 ret = frame_worker_.Init();
292 if (ret) {
293 pthread_mutex_destroy(&lock_);
294 ALOGE("Failed to initialize frame worker %d\n", ret);
295 return ret;
296 }
297
298 initialized_ = true;
299 return 0;
300 }
301
CreateComposition() const302 std::unique_ptr<DrmDisplayComposition> DrmDisplayCompositor::CreateComposition()
303 const {
304 return std::unique_ptr<DrmDisplayComposition>(new DrmDisplayComposition());
305 }
306
QueueComposition(std::unique_ptr<DrmDisplayComposition> composition)307 int DrmDisplayCompositor::QueueComposition(
308 std::unique_ptr<DrmDisplayComposition> composition) {
309 switch (composition->type()) {
310 case DRM_COMPOSITION_TYPE_FRAME:
311 if (!active_)
312 return -ENODEV;
313 break;
314 case DRM_COMPOSITION_TYPE_DPMS:
315 /*
316 * Update the state as soon as we get it so we can start/stop queuing
317 * frames asap.
318 */
319 active_ = (composition->dpms_mode() == DRM_MODE_DPMS_ON);
320 break;
321 case DRM_COMPOSITION_TYPE_MODESET:
322 break;
323 case DRM_COMPOSITION_TYPE_EMPTY:
324 return 0;
325 default:
326 ALOGE("Unknown composition type %d/%d", composition->type(), display_);
327 return -ENOENT;
328 }
329
330 int ret = pthread_mutex_lock(&lock_);
331 if (ret) {
332 ALOGE("Failed to acquire compositor lock %d", ret);
333 return ret;
334 }
335
336 // Block the queue if it gets too large. Otherwise, SurfaceFlinger will start
337 // to eat our buffer handles when we get about 1 second behind.
338 while (composite_queue_.size() >= DRM_DISPLAY_COMPOSITOR_MAX_QUEUE_DEPTH) {
339 pthread_mutex_unlock(&lock_);
340 sched_yield();
341 pthread_mutex_lock(&lock_);
342 }
343
344 composite_queue_.push(std::move(composition));
345
346 ret = pthread_mutex_unlock(&lock_);
347 if (ret) {
348 ALOGE("Failed to release compositor lock %d", ret);
349 return ret;
350 }
351
352 worker_.Signal();
353 return 0;
354 }
355
356 std::tuple<uint32_t, uint32_t, int>
GetActiveModeResolution()357 DrmDisplayCompositor::GetActiveModeResolution() {
358 DrmConnector *connector = drm_->GetConnectorForDisplay(display_);
359 if (connector == NULL) {
360 ALOGE("Failed to determine display mode: no connector for display %d",
361 display_);
362 return std::make_tuple(0, 0, -ENODEV);
363 }
364
365 const DrmMode &mode = connector->active_mode();
366 return std::make_tuple(mode.h_display(), mode.v_display(), 0);
367 }
368
PrepareFramebuffer(DrmFramebuffer & fb,DrmDisplayComposition * display_comp)369 int DrmDisplayCompositor::PrepareFramebuffer(
370 DrmFramebuffer &fb, DrmDisplayComposition *display_comp) {
371 int ret = fb.WaitReleased(-1);
372 if (ret) {
373 ALOGE("Failed to wait for framebuffer release %d", ret);
374 return ret;
375 }
376 uint32_t width, height;
377 std::tie(width, height, ret) = GetActiveModeResolution();
378 if (ret) {
379 ALOGE(
380 "Failed to allocate framebuffer because the display resolution could "
381 "not be determined %d",
382 ret);
383 return ret;
384 }
385
386 fb.set_release_fence_fd(-1);
387 if (!fb.Allocate(width, height)) {
388 ALOGE("Failed to allocate framebuffer with size %dx%d", width, height);
389 return -ENOMEM;
390 }
391
392 display_comp->layers().emplace_back();
393 DrmHwcLayer &pre_comp_layer = display_comp->layers().back();
394 pre_comp_layer.sf_handle = fb.buffer()->handle;
395 pre_comp_layer.source_crop = DrmHwcRect<float>(0, 0, width, height);
396 pre_comp_layer.display_frame = DrmHwcRect<int>(0, 0, width, height);
397 ret = pre_comp_layer.buffer.ImportBuffer(fb.buffer()->handle,
398 display_comp->importer());
399 if (ret) {
400 ALOGE("Failed to import framebuffer for display %d", ret);
401 return ret;
402 }
403
404 return ret;
405 }
406
ApplySquash(DrmDisplayComposition * display_comp)407 int DrmDisplayCompositor::ApplySquash(DrmDisplayComposition *display_comp) {
408 int ret = 0;
409
410 DrmFramebuffer &fb = squash_framebuffers_[squash_framebuffer_index_];
411 ret = PrepareFramebuffer(fb, display_comp);
412 if (ret) {
413 ALOGE("Failed to prepare framebuffer for squash %d", ret);
414 return ret;
415 }
416
417 std::vector<DrmCompositionRegion> ®ions = display_comp->squash_regions();
418 ret = pre_compositor_->Composite(display_comp->layers().data(),
419 regions.data(), regions.size(), fb.buffer());
420 pre_compositor_->Finish();
421
422 if (ret) {
423 ALOGE("Failed to squash layers");
424 return ret;
425 }
426
427 ret = display_comp->CreateNextTimelineFence();
428 if (ret <= 0) {
429 ALOGE("Failed to create squash framebuffer release fence %d", ret);
430 return ret;
431 }
432
433 fb.set_release_fence_fd(ret);
434 display_comp->SignalSquashDone();
435
436 return 0;
437 }
438
ApplyPreComposite(DrmDisplayComposition * display_comp)439 int DrmDisplayCompositor::ApplyPreComposite(
440 DrmDisplayComposition *display_comp) {
441 int ret = 0;
442
443 DrmFramebuffer &fb = framebuffers_[framebuffer_index_];
444 ret = PrepareFramebuffer(fb, display_comp);
445 if (ret) {
446 ALOGE("Failed to prepare framebuffer for pre-composite %d", ret);
447 return ret;
448 }
449
450 std::vector<DrmCompositionRegion> ®ions = display_comp->pre_comp_regions();
451 ret = pre_compositor_->Composite(display_comp->layers().data(),
452 regions.data(), regions.size(), fb.buffer());
453 pre_compositor_->Finish();
454
455 if (ret) {
456 ALOGE("Failed to pre-composite layers");
457 return ret;
458 }
459
460 ret = display_comp->CreateNextTimelineFence();
461 if (ret <= 0) {
462 ALOGE("Failed to create pre-composite framebuffer release fence %d", ret);
463 return ret;
464 }
465
466 fb.set_release_fence_fd(ret);
467 display_comp->SignalPreCompDone();
468
469 return 0;
470 }
471
DisablePlanes(DrmDisplayComposition * display_comp)472 int DrmDisplayCompositor::DisablePlanes(DrmDisplayComposition *display_comp) {
473 drmModePropertySetPtr pset = drmModePropertySetAlloc();
474 if (!pset) {
475 ALOGE("Failed to allocate property set");
476 return -ENOMEM;
477 }
478
479 int ret;
480 std::vector<DrmCompositionPlane> &comp_planes =
481 display_comp->composition_planes();
482 for (DrmCompositionPlane &comp_plane : comp_planes) {
483 DrmPlane *plane = comp_plane.plane;
484 ret =
485 drmModePropertySetAdd(pset, plane->id(), plane->crtc_property().id(),
486 0) ||
487 drmModePropertySetAdd(pset, plane->id(), plane->fb_property().id(), 0);
488 if (ret) {
489 ALOGE("Failed to add plane %d disable to pset", plane->id());
490 drmModePropertySetFree(pset);
491 return ret;
492 }
493 }
494
495 ret = drmModePropertySetCommit(drm_->fd(), 0, drm_, pset);
496 if (ret) {
497 ALOGE("Failed to commit pset ret=%d\n", ret);
498 drmModePropertySetFree(pset);
499 return ret;
500 }
501
502 drmModePropertySetFree(pset);
503 return 0;
504 }
505
PrepareFrame(DrmDisplayComposition * display_comp)506 int DrmDisplayCompositor::PrepareFrame(DrmDisplayComposition *display_comp) {
507 int ret = 0;
508
509 std::vector<DrmHwcLayer> &layers = display_comp->layers();
510 std::vector<DrmCompositionPlane> &comp_planes =
511 display_comp->composition_planes();
512 std::vector<DrmCompositionRegion> &squash_regions =
513 display_comp->squash_regions();
514 std::vector<DrmCompositionRegion> &pre_comp_regions =
515 display_comp->pre_comp_regions();
516
517 int squash_layer_index = -1;
518 if (squash_regions.size() > 0) {
519 squash_framebuffer_index_ = (squash_framebuffer_index_ + 1) % 2;
520 ret = ApplySquash(display_comp);
521 if (ret)
522 return ret;
523
524 squash_layer_index = layers.size() - 1;
525 } else {
526 if (UsesSquash(comp_planes)) {
527 DrmFramebuffer &fb = squash_framebuffers_[squash_framebuffer_index_];
528 layers.emplace_back();
529 squash_layer_index = layers.size() - 1;
530 DrmHwcLayer &squash_layer = layers.back();
531 ret = squash_layer.buffer.ImportBuffer(fb.buffer()->handle,
532 display_comp->importer());
533 if (ret) {
534 ALOGE("Failed to import old squashed framebuffer %d", ret);
535 return ret;
536 }
537 squash_layer.sf_handle = fb.buffer()->handle;
538 squash_layer.source_crop = DrmHwcRect<float>(
539 0, 0, squash_layer.buffer->width, squash_layer.buffer->height);
540 squash_layer.display_frame = DrmHwcRect<int>(
541 0, 0, squash_layer.buffer->width, squash_layer.buffer->height);
542 ret = display_comp->CreateNextTimelineFence();
543
544 if (ret <= 0) {
545 ALOGE("Failed to create squash framebuffer release fence %d", ret);
546 return ret;
547 }
548
549 fb.set_release_fence_fd(ret);
550 ret = 0;
551 }
552 }
553
554 bool do_pre_comp = pre_comp_regions.size() > 0;
555 int pre_comp_layer_index = -1;
556 if (do_pre_comp) {
557 ret = ApplyPreComposite(display_comp);
558 if (ret)
559 return ret;
560
561 pre_comp_layer_index = layers.size() - 1;
562 framebuffer_index_ = (framebuffer_index_ + 1) % DRM_DISPLAY_BUFFERS;
563 }
564
565 for (DrmCompositionPlane &comp_plane : comp_planes) {
566 switch (comp_plane.source_layer) {
567 case DrmCompositionPlane::kSourceSquash:
568 comp_plane.source_layer = squash_layer_index;
569 break;
570 case DrmCompositionPlane::kSourcePreComp:
571 if (!do_pre_comp) {
572 ALOGE(
573 "Can not use pre composite framebuffer with no pre composite "
574 "regions");
575 return -EINVAL;
576 }
577 comp_plane.source_layer = pre_comp_layer_index;
578 break;
579 default:
580 break;
581 }
582 }
583
584 return ret;
585 }
586
CommitFrame(DrmDisplayComposition * display_comp)587 int DrmDisplayCompositor::CommitFrame(DrmDisplayComposition *display_comp) {
588 int ret = 0;
589
590 std::vector<DrmHwcLayer> &layers = display_comp->layers();
591 std::vector<DrmCompositionPlane> &comp_planes =
592 display_comp->composition_planes();
593 std::vector<DrmCompositionRegion> &pre_comp_regions =
594 display_comp->pre_comp_regions();
595
596 DrmFramebuffer *pre_comp_fb;
597
598 DrmConnector *connector = drm_->GetConnectorForDisplay(display_);
599 if (!connector) {
600 ALOGE("Could not locate connector for display %d", display_);
601 return -ENODEV;
602 }
603 DrmCrtc *crtc = drm_->GetCrtcForDisplay(display_);
604 if (!crtc) {
605 ALOGE("Could not locate crtc for display %d", display_);
606 return -ENODEV;
607 }
608
609 drmModePropertySetPtr pset = drmModePropertySetAlloc();
610 if (!pset) {
611 ALOGE("Failed to allocate property set");
612 return -ENOMEM;
613 }
614
615 uint32_t blob_id = 0;
616 uint64_t old_blob_id;
617 if (needs_modeset_) {
618 DrmProperty old_mode;
619 ret = drm_->GetCrtcProperty(*crtc, crtc->mode_property().name().c_str(),
620 &old_mode);
621 if (ret) {
622 ALOGE("Failed to get old mode property from crtc %d", crtc->id());
623 drmModePropertySetFree(pset);
624 return ret;
625 }
626 ret = old_mode.value(&old_blob_id);
627 if (ret) {
628 ALOGE("Could not get old blob id value %d", ret);
629 drmModePropertySetFree(pset);
630 return ret;
631 }
632
633 struct drm_mode_modeinfo drm_mode;
634 memset(&drm_mode, 0, sizeof(drm_mode));
635 next_mode_.ToDrmModeModeInfo(&drm_mode);
636
637 ret = drm_->CreatePropertyBlob(&drm_mode, sizeof(struct drm_mode_modeinfo),
638 &blob_id);
639 if (ret) {
640 ALOGE("Failed to create mode property blob %d", ret);
641 drmModePropertySetFree(pset);
642 return ret;
643 }
644
645 ret = drmModePropertySetAdd(pset, crtc->id(), crtc->mode_property().id(),
646 blob_id) ||
647 drmModePropertySetAdd(pset, connector->id(),
648 connector->crtc_id_property().id(), crtc->id());
649 if (ret) {
650 ALOGE("Failed to add blob %d to pset", blob_id);
651 drmModePropertySetFree(pset);
652 drm_->DestroyPropertyBlob(blob_id);
653 return ret;
654 }
655 }
656
657 for (DrmCompositionPlane &comp_plane : comp_planes) {
658 DrmPlane *plane = comp_plane.plane;
659 DrmCrtc *crtc = comp_plane.crtc;
660
661 int fb_id = -1;
662 DrmHwcRect<int> display_frame;
663 DrmHwcRect<float> source_crop;
664 uint64_t rotation = 0;
665 uint64_t alpha = 0xFF;
666 switch (comp_plane.source_layer) {
667 case DrmCompositionPlane::kSourceNone:
668 break;
669 case DrmCompositionPlane::kSourceSquash:
670 ALOGE("Actual source layer index expected for squash layer");
671 break;
672 case DrmCompositionPlane::kSourcePreComp:
673 ALOGE("Actual source layer index expected for pre-comp layer");
674 break;
675 default: {
676 if (comp_plane.source_layer >= layers.size()) {
677 ALOGE("Source layer index %zu out of bounds %zu",
678 comp_plane.source_layer, layers.size());
679 break;
680 }
681 DrmHwcLayer &layer = layers[comp_plane.source_layer];
682 if (layer.acquire_fence.get() >= 0) {
683 int acquire_fence = layer.acquire_fence.get();
684 for (int i = 0; i < kAcquireWaitTries; ++i) {
685 ret = sync_wait(acquire_fence, kAcquireWaitTimeoutMs);
686 if (ret)
687 ALOGW("Acquire fence %d wait %d failed (%d). Total time %d",
688 acquire_fence, i, ret, (i + 1) * kAcquireWaitTimeoutMs);
689 }
690 if (ret) {
691 ALOGE("Failed to wait for acquire %d/%d", acquire_fence, ret);
692 break;
693 }
694 layer.acquire_fence.Close();
695 }
696 if (!layer.buffer) {
697 ALOGE("Expected a valid framebuffer for pset");
698 break;
699 }
700 fb_id = layer.buffer->fb_id;
701 display_frame = layer.display_frame;
702 source_crop = layer.source_crop;
703 if (layer.blending == DrmHwcBlending::kPreMult)
704 alpha = layer.alpha;
705 switch (layer.transform) {
706 case DrmHwcTransform::kFlipH:
707 rotation = 1 << DRM_REFLECT_X;
708 break;
709 case DrmHwcTransform::kFlipV:
710 rotation = 1 << DRM_REFLECT_Y;
711 break;
712 case DrmHwcTransform::kRotate90:
713 rotation = 1 << DRM_ROTATE_90;
714 break;
715 case DrmHwcTransform::kRotate180:
716 rotation = 1 << DRM_ROTATE_180;
717 break;
718 case DrmHwcTransform::kRotate270:
719 rotation = 1 << DRM_ROTATE_270;
720 break;
721 case DrmHwcTransform::kIdentity:
722 rotation = 0;
723 break;
724 default:
725 ALOGE("Invalid transform value 0x%x given", layer.transform);
726 break;
727 }
728 break;
729 }
730 }
731
732 // Disable the plane if there's no framebuffer
733 if (fb_id < 0) {
734 ret = drmModePropertySetAdd(pset, plane->id(),
735 plane->crtc_property().id(), 0) ||
736 drmModePropertySetAdd(pset, plane->id(), plane->fb_property().id(),
737 0);
738 if (ret) {
739 ALOGE("Failed to add plane %d disable to pset", plane->id());
740 break;
741 }
742 continue;
743 }
744
745 // TODO: Once we have atomic test, this should fall back to GL
746 if (rotation && plane->rotation_property().id() == 0) {
747 ALOGE("Rotation is not supported on plane %d", plane->id());
748 ret = -EINVAL;
749 break;
750 }
751
752 // TODO: Once we have atomic test, this should fall back to GL
753 if (alpha != 0xFF && plane->alpha_property().id() == 0) {
754 ALOGE("Alpha is not supported on plane %d", plane->id());
755 ret = -EINVAL;
756 break;
757 }
758
759 ret =
760 drmModePropertySetAdd(pset, plane->id(), plane->crtc_property().id(),
761 crtc->id()) ||
762 drmModePropertySetAdd(pset, plane->id(), plane->fb_property().id(),
763 fb_id) ||
764 drmModePropertySetAdd(pset, plane->id(), plane->crtc_x_property().id(),
765 display_frame.left) ||
766 drmModePropertySetAdd(pset, plane->id(), plane->crtc_y_property().id(),
767 display_frame.top) ||
768 drmModePropertySetAdd(pset, plane->id(), plane->crtc_w_property().id(),
769 display_frame.right - display_frame.left) ||
770 drmModePropertySetAdd(pset, plane->id(), plane->crtc_h_property().id(),
771 display_frame.bottom - display_frame.top) ||
772 drmModePropertySetAdd(pset, plane->id(), plane->src_x_property().id(),
773 (int)(source_crop.left) << 16) ||
774 drmModePropertySetAdd(pset, plane->id(), plane->src_y_property().id(),
775 (int)(source_crop.top) << 16) ||
776 drmModePropertySetAdd(pset, plane->id(), plane->src_w_property().id(),
777 (int)(source_crop.right - source_crop.left)
778 << 16) ||
779 drmModePropertySetAdd(pset, plane->id(), plane->src_h_property().id(),
780 (int)(source_crop.bottom - source_crop.top)
781 << 16);
782 if (ret) {
783 ALOGE("Failed to add plane %d to set", plane->id());
784 break;
785 }
786
787 if (plane->rotation_property().id()) {
788 ret = drmModePropertySetAdd(pset, plane->id(),
789 plane->rotation_property().id(), rotation);
790 if (ret) {
791 ALOGE("Failed to add rotation property %d to plane %d",
792 plane->rotation_property().id(), plane->id());
793 break;
794 }
795 }
796
797 if (plane->alpha_property().id()) {
798 ret = drmModePropertySetAdd(pset, plane->id(),
799 plane->alpha_property().id(), alpha);
800 if (ret) {
801 ALOGE("Failed to add alpha property %d to plane %d",
802 plane->alpha_property().id(), plane->id());
803 break;
804 }
805 }
806 }
807
808 out:
809 if (!ret) {
810 ret = drmModePropertySetCommit(drm_->fd(), DRM_MODE_ATOMIC_ALLOW_MODESET,
811 drm_, pset);
812 if (ret) {
813 ALOGE("Failed to commit pset ret=%d\n", ret);
814 drmModePropertySetFree(pset);
815 if (needs_modeset_)
816 drm_->DestroyPropertyBlob(blob_id);
817 return ret;
818 }
819 }
820 if (pset)
821 drmModePropertySetFree(pset);
822
823 if (needs_modeset_) {
824 ret = drm_->DestroyPropertyBlob(old_blob_id);
825 if (ret) {
826 ALOGE("Failed to destroy old mode property blob %lld/%d", old_blob_id,
827 ret);
828 return ret;
829 }
830
831 /* TODO: Add dpms to the pset when the kernel supports it */
832 ret = ApplyDpms(display_comp);
833 if (ret) {
834 ALOGE("Failed to apply DPMS after modeset %d\n", ret);
835 return ret;
836 }
837
838 connector->set_active_mode(next_mode_);
839 needs_modeset_ = false;
840 }
841
842 return ret;
843 }
844
ApplyDpms(DrmDisplayComposition * display_comp)845 int DrmDisplayCompositor::ApplyDpms(DrmDisplayComposition *display_comp) {
846 DrmConnector *conn = drm_->GetConnectorForDisplay(display_);
847 if (!conn) {
848 ALOGE("Failed to get DrmConnector for display %d", display_);
849 return -ENODEV;
850 }
851
852 const DrmProperty &prop = conn->dpms_property();
853 int ret = drmModeConnectorSetProperty(drm_->fd(), conn->id(), prop.id(),
854 display_comp->dpms_mode());
855 if (ret) {
856 ALOGE("Failed to set DPMS property for connector %d", conn->id());
857 return ret;
858 }
859 return 0;
860 }
861
ApplyFrame(std::unique_ptr<DrmDisplayComposition> composition,int status)862 void DrmDisplayCompositor::ApplyFrame(
863 std::unique_ptr<DrmDisplayComposition> composition, int status) {
864 int ret = status;
865
866 if (!ret)
867 ret = CommitFrame(composition.get());
868
869 if (ret) {
870 ALOGE("Composite failed for display %d", display_);
871
872 // Disable the hw used by the last active composition. This allows us to
873 // signal the release fences from that composition to avoid hanging.
874 if (DisablePlanes(active_composition_.get()))
875 return;
876 }
877 ++dump_frames_composited_;
878
879 if (active_composition_)
880 active_composition_->SignalCompositionDone();
881
882 ret = pthread_mutex_lock(&lock_);
883 if (ret)
884 ALOGE("Failed to acquire lock for active_composition swap");
885
886 active_composition_.swap(composition);
887
888 if (!ret)
889 ret = pthread_mutex_unlock(&lock_);
890 if (ret)
891 ALOGE("Failed to release lock for active_composition swap");
892 }
893
Composite()894 int DrmDisplayCompositor::Composite() {
895 ATRACE_CALL();
896
897 if (!pre_compositor_) {
898 pre_compositor_.reset(new GLWorkerCompositor());
899 int ret = pre_compositor_->Init();
900 if (ret) {
901 ALOGE("Failed to initialize OpenGL compositor %d", ret);
902 return ret;
903 }
904 }
905
906 int ret = pthread_mutex_lock(&lock_);
907 if (ret) {
908 ALOGE("Failed to acquire compositor lock %d", ret);
909 return ret;
910 }
911 if (composite_queue_.empty()) {
912 ret = pthread_mutex_unlock(&lock_);
913 if (ret)
914 ALOGE("Failed to release compositor lock %d", ret);
915 return ret;
916 }
917
918 std::unique_ptr<DrmDisplayComposition> composition(
919 std::move(composite_queue_.front()));
920
921 composite_queue_.pop();
922
923 ret = pthread_mutex_unlock(&lock_);
924 if (ret) {
925 ALOGE("Failed to release compositor lock %d", ret);
926 return ret;
927 }
928
929 switch (composition->type()) {
930 case DRM_COMPOSITION_TYPE_FRAME:
931 ret = PrepareFrame(composition.get());
932 frame_worker_.QueueFrame(std::move(composition), ret);
933 break;
934 case DRM_COMPOSITION_TYPE_DPMS:
935 ret = ApplyDpms(composition.get());
936 if (ret)
937 ALOGE("Failed to apply dpms for display %d", display_);
938 return ret;
939 case DRM_COMPOSITION_TYPE_MODESET:
940 next_mode_ = composition->display_mode();
941 needs_modeset_ = true;
942 return 0;
943 default:
944 ALOGE("Unknown composition type %d", composition->type());
945 return -EINVAL;
946 }
947
948 return ret;
949 }
950
HaveQueuedComposites() const951 bool DrmDisplayCompositor::HaveQueuedComposites() const {
952 int ret = pthread_mutex_lock(&lock_);
953 if (ret) {
954 ALOGE("Failed to acquire compositor lock %d", ret);
955 return false;
956 }
957
958 bool empty_ret = !composite_queue_.empty();
959
960 ret = pthread_mutex_unlock(&lock_);
961 if (ret) {
962 ALOGE("Failed to release compositor lock %d", ret);
963 return false;
964 }
965
966 return empty_ret;
967 }
968
Dump(std::ostringstream * out) const969 void DrmDisplayCompositor::Dump(std::ostringstream *out) const {
970 int ret = pthread_mutex_lock(&lock_);
971 if (ret)
972 return;
973
974 uint64_t num_frames = dump_frames_composited_;
975 dump_frames_composited_ = 0;
976
977 struct timespec ts;
978 ret = clock_gettime(CLOCK_MONOTONIC, &ts);
979 if (ret) {
980 pthread_mutex_unlock(&lock_);
981 return;
982 }
983
984 uint64_t cur_ts = ts.tv_sec * 1000 * 1000 * 1000 + ts.tv_nsec;
985 uint64_t num_ms = (cur_ts - dump_last_timestamp_ns_) / (1000 * 1000);
986 float fps = num_ms ? (num_frames * 1000.0f) / (num_ms) : 0.0f;
987
988 *out << "--DrmDisplayCompositor[" << display_
989 << "]: num_frames=" << num_frames << " num_ms=" << num_ms
990 << " fps=" << fps << "\n";
991
992 dump_last_timestamp_ns_ = cur_ts;
993
994 if (active_composition_)
995 active_composition_->Dump(out);
996
997 squash_state_.Dump(out);
998
999 pthread_mutex_unlock(&lock_);
1000 }
1001 }
1002