2 * Copyright (C) 2015 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
18 #define LOG_TAG "hwc-drm-display-compositor"
20 #include "drmdisplaycompositor.h"
29 #include <cutils/log.h>
30 #include <drm/drm_mode.h>
31 #include <sync/sync.h>
32 #include <utils/Trace.h>
37 #include "drmresources.h"
40 #define DRM_DISPLAY_COMPOSITOR_MAX_QUEUE_DEPTH 2
44 void SquashState::Init(DrmHwcLayer *layers, size_t num_layers) {
48 last_handles_.clear();
50 std::vector<DrmHwcRect<int>> in_rects;
51 for (size_t i = 0; i < num_layers; i++) {
52 DrmHwcLayer *layer = &layers[i];
53 in_rects.emplace_back(layer->display_frame);
54 last_handles_.push_back(layer->sf_handle);
57 std::vector<separate_rects::RectSet<uint64_t, int>> out_regions;
58 separate_rects::separate_rects_64(in_rects, &out_regions);
60 for (const separate_rects::RectSet<uint64_t, int> &out_region : out_regions) {
61 regions_.emplace_back();
62 Region ®ion = regions_.back();
63 region.rect = out_region.rect;
64 region.layer_refs = out_region.id_set.getBits();
68 void SquashState::GenerateHistory(DrmHwcLayer *layers, size_t num_layers,
69 std::vector<bool> &changed_regions) const {
70 changed_regions.resize(regions_.size());
71 if (num_layers != last_handles_.size()) {
72 ALOGE("SquashState::GenerateHistory expected %zu layers but got %zu layers",
73 last_handles_.size(), num_layers);
76 std::bitset<kMaxLayers> changed_layers;
77 for (size_t i = 0; i < last_handles_.size(); i++) {
78 DrmHwcLayer *layer = &layers[i];
79 // Protected layers can't be squashed so we treat them as constantly
81 if (layer->protected_usage() || last_handles_[i] != layer->sf_handle)
82 changed_layers.set(i);
85 for (size_t i = 0; i < regions_.size(); i++) {
86 changed_regions[i] = (regions_[i].layer_refs & changed_layers).any();
90 void SquashState::StableRegionsWithMarginalHistory(
91 const std::vector<bool> &changed_regions,
92 std::vector<bool> &stable_regions) const {
93 stable_regions.resize(regions_.size());
94 for (size_t i = 0; i < regions_.size(); i++) {
95 stable_regions[i] = !changed_regions[i] && is_stable(i);
99 void SquashState::RecordHistory(DrmHwcLayer *layers, size_t num_layers,
100 const std::vector<bool> &changed_regions) {
101 if (num_layers != last_handles_.size()) {
102 ALOGE("SquashState::RecordHistory expected %zu layers but got %zu layers",
103 last_handles_.size(), num_layers);
106 if (changed_regions.size() != regions_.size()) {
107 ALOGE("SquashState::RecordHistory expected %zu regions but got %zu regions",
108 regions_.size(), changed_regions.size());
112 for (size_t i = 0; i < last_handles_.size(); i++) {
113 DrmHwcLayer *layer = &layers[i];
114 last_handles_[i] = layer->sf_handle;
117 for (size_t i = 0; i < regions_.size(); i++) {
118 regions_[i].change_history <<= 1;
119 regions_[i].change_history.set(/* LSB */ 0, changed_regions[i]);
125 bool SquashState::RecordAndCompareSquashed(
126 const std::vector<bool> &squashed_regions) {
127 if (squashed_regions.size() != regions_.size()) {
129 "SquashState::RecordAndCompareSquashed expected %zu regions but got "
131 regions_.size(), squashed_regions.size());
134 bool changed = false;
135 for (size_t i = 0; i < regions_.size(); i++) {
136 if (regions_[i].squashed != squashed_regions[i]) {
137 regions_[i].squashed = squashed_regions[i];
144 void SquashState::Dump(std::ostringstream *out) const {
145 *out << "----SquashState generation=" << generation_number_
146 << " history=" << valid_history_ << "\n"
147 << " Regions: count=" << regions_.size() << "\n";
148 for (size_t i = 0; i < regions_.size(); i++) {
149 const Region ®ion = regions_[i];
150 *out << " [" << i << "]"
151 << " history=" << region.change_history << " rect";
152 region.rect.Dump(out);
155 for (size_t layer_index = 0; layer_index < kMaxLayers; layer_index++) {
156 if ((region.layer_refs &
157 std::bitset<kMaxLayers>((size_t)1 << layer_index))
172 static bool UsesSquash(const std::vector<DrmCompositionPlane> &comp_planes) {
173 return std::any_of(comp_planes.begin(), comp_planes.end(),
174 [](const DrmCompositionPlane &plane) {
175 return plane.type == DrmCompositionPlaneType::kSquash;
179 DrmDisplayCompositor::FrameWorker::FrameWorker(DrmDisplayCompositor *compositor)
180 : Worker("frame-worker", HAL_PRIORITY_URGENT_DISPLAY),
181 compositor_(compositor) {
184 DrmDisplayCompositor::FrameWorker::~FrameWorker() {
187 int DrmDisplayCompositor::FrameWorker::Init() {
191 void DrmDisplayCompositor::FrameWorker::QueueFrame(
192 std::unique_ptr<DrmDisplayComposition> composition, int status) {
195 frame.composition = std::move(composition);
196 frame.status = status;
197 frame_queue_.push(std::move(frame));
202 void DrmDisplayCompositor::FrameWorker::Routine() {
205 ALOGE("Failed to lock worker, %d", ret);
210 if (frame_queue_.empty()) {
211 wait_ret = WaitForSignalOrExitLocked();
215 if (!frame_queue_.empty()) {
216 frame = std::move(frame_queue_.front());
222 ALOGE("Failed to unlock worker, %d", ret);
226 if (wait_ret == -EINTR) {
228 } else if (wait_ret) {
229 ALOGE("Failed to wait for signal, %d", wait_ret);
233 compositor_->ApplyFrame(std::move(frame.composition), frame.status);
236 DrmDisplayCompositor::DrmDisplayCompositor()
243 use_hw_overlays_(true),
244 framebuffer_index_(0),
245 squash_framebuffer_index_(0),
246 dump_frames_composited_(0),
247 dump_last_timestamp_ns_(0) {
249 if (clock_gettime(CLOCK_MONOTONIC, &ts))
251 dump_last_timestamp_ns_ = ts.tv_sec * 1000 * 1000 * 1000 + ts.tv_nsec;
254 DrmDisplayCompositor::~DrmDisplayCompositor() {
259 frame_worker_.Exit();
261 int ret = pthread_mutex_lock(&lock_);
263 ALOGE("Failed to acquire compositor lock %d", ret);
266 drm_->DestroyPropertyBlob(mode_.blob_id);
267 if (mode_.old_blob_id)
268 drm_->DestroyPropertyBlob(mode_.old_blob_id);
270 while (!composite_queue_.empty()) {
271 composite_queue_.front().reset();
272 composite_queue_.pop();
274 active_composition_.reset();
276 ret = pthread_mutex_unlock(&lock_);
278 ALOGE("Failed to acquire compositor lock %d", ret);
280 pthread_mutex_destroy(&lock_);
283 int DrmDisplayCompositor::Init(DrmResources *drm, int display) {
287 int ret = pthread_mutex_init(&lock_, NULL);
289 ALOGE("Failed to initialize drm compositor lock %d\n", ret);
292 ret = worker_.Init();
294 pthread_mutex_destroy(&lock_);
295 ALOGE("Failed to initialize compositor worker %d\n", ret);
298 ret = frame_worker_.Init();
300 pthread_mutex_destroy(&lock_);
301 ALOGE("Failed to initialize frame worker %d\n", ret);
309 std::unique_ptr<DrmDisplayComposition> DrmDisplayCompositor::CreateComposition()
311 return std::unique_ptr<DrmDisplayComposition>(new DrmDisplayComposition());
314 int DrmDisplayCompositor::QueueComposition(
315 std::unique_ptr<DrmDisplayComposition> composition) {
316 switch (composition->type()) {
317 case DRM_COMPOSITION_TYPE_FRAME:
321 case DRM_COMPOSITION_TYPE_DPMS:
323 * Update the state as soon as we get it so we can start/stop queuing
326 active_ = (composition->dpms_mode() == DRM_MODE_DPMS_ON);
328 case DRM_COMPOSITION_TYPE_MODESET:
330 case DRM_COMPOSITION_TYPE_EMPTY:
333 ALOGE("Unknown composition type %d/%d", composition->type(), display_);
337 int ret = pthread_mutex_lock(&lock_);
339 ALOGE("Failed to acquire compositor lock %d", ret);
343 // Block the queue if it gets too large. Otherwise, SurfaceFlinger will start
344 // to eat our buffer handles when we get about 1 second behind.
345 while (composite_queue_.size() >= DRM_DISPLAY_COMPOSITOR_MAX_QUEUE_DEPTH) {
346 pthread_mutex_unlock(&lock_);
348 pthread_mutex_lock(&lock_);
351 composite_queue_.push(std::move(composition));
353 ret = pthread_mutex_unlock(&lock_);
355 ALOGE("Failed to release compositor lock %d", ret);
363 std::tuple<uint32_t, uint32_t, int>
364 DrmDisplayCompositor::GetActiveModeResolution() {
365 DrmConnector *connector = drm_->GetConnectorForDisplay(display_);
366 if (connector == NULL) {
367 ALOGE("Failed to determine display mode: no connector for display %d",
369 return std::make_tuple(0, 0, -ENODEV);
372 const DrmMode &mode = connector->active_mode();
373 return std::make_tuple(mode.h_display(), mode.v_display(), 0);
376 int DrmDisplayCompositor::PrepareFramebuffer(
377 DrmFramebuffer &fb, DrmDisplayComposition *display_comp) {
378 int ret = fb.WaitReleased(-1);
380 ALOGE("Failed to wait for framebuffer release %d", ret);
383 uint32_t width, height;
384 std::tie(width, height, ret) = GetActiveModeResolution();
387 "Failed to allocate framebuffer because the display resolution could "
388 "not be determined %d",
393 fb.set_release_fence_fd(-1);
394 if (!fb.Allocate(width, height)) {
395 ALOGE("Failed to allocate framebuffer with size %dx%d", width, height);
399 display_comp->layers().emplace_back();
400 DrmHwcLayer &pre_comp_layer = display_comp->layers().back();
401 pre_comp_layer.sf_handle = fb.buffer()->handle;
402 pre_comp_layer.blending = DrmHwcBlending::kPreMult;
403 pre_comp_layer.source_crop = DrmHwcRect<float>(0, 0, width, height);
404 pre_comp_layer.display_frame = DrmHwcRect<int>(0, 0, width, height);
405 ret = pre_comp_layer.buffer.ImportBuffer(fb.buffer()->handle,
406 display_comp->importer());
408 ALOGE("Failed to import framebuffer for display %d", ret);
415 int DrmDisplayCompositor::ApplySquash(DrmDisplayComposition *display_comp) {
418 DrmFramebuffer &fb = squash_framebuffers_[squash_framebuffer_index_];
419 ret = PrepareFramebuffer(fb, display_comp);
421 ALOGE("Failed to prepare framebuffer for squash %d", ret);
425 std::vector<DrmCompositionRegion> ®ions = display_comp->squash_regions();
426 ret = pre_compositor_->Composite(display_comp->layers().data(),
427 regions.data(), regions.size(), fb.buffer());
428 pre_compositor_->Finish();
431 ALOGE("Failed to squash layers");
435 ret = display_comp->CreateNextTimelineFence();
437 ALOGE("Failed to create squash framebuffer release fence %d", ret);
441 fb.set_release_fence_fd(ret);
442 display_comp->SignalSquashDone();
447 int DrmDisplayCompositor::ApplyPreComposite(
448 DrmDisplayComposition *display_comp) {
451 DrmFramebuffer &fb = framebuffers_[framebuffer_index_];
452 ret = PrepareFramebuffer(fb, display_comp);
454 ALOGE("Failed to prepare framebuffer for pre-composite %d", ret);
458 std::vector<DrmCompositionRegion> ®ions = display_comp->pre_comp_regions();
459 ret = pre_compositor_->Composite(display_comp->layers().data(),
460 regions.data(), regions.size(), fb.buffer());
461 pre_compositor_->Finish();
464 ALOGE("Failed to pre-composite layers");
468 ret = display_comp->CreateNextTimelineFence();
470 ALOGE("Failed to create pre-composite framebuffer release fence %d", ret);
474 fb.set_release_fence_fd(ret);
475 display_comp->SignalPreCompDone();
480 int DrmDisplayCompositor::DisablePlanes(DrmDisplayComposition *display_comp) {
481 drmModeAtomicReqPtr pset = drmModeAtomicAlloc();
483 ALOGE("Failed to allocate property set");
488 std::vector<DrmCompositionPlane> &comp_planes =
489 display_comp->composition_planes();
490 for (DrmCompositionPlane &comp_plane : comp_planes) {
491 DrmPlane *plane = comp_plane.plane;
492 ret = drmModeAtomicAddProperty(pset, plane->id(),
493 plane->crtc_property().id(), 0) < 0 ||
494 drmModeAtomicAddProperty(pset, plane->id(), plane->fb_property().id(),
497 ALOGE("Failed to add plane %d disable to pset", plane->id());
498 drmModeAtomicFree(pset);
503 ret = drmModeAtomicCommit(drm_->fd(), pset, 0, drm_);
505 ALOGE("Failed to commit pset ret=%d\n", ret);
506 drmModeAtomicFree(pset);
510 drmModeAtomicFree(pset);
514 int DrmDisplayCompositor::PrepareFrame(DrmDisplayComposition *display_comp) {
517 std::vector<DrmHwcLayer> &layers = display_comp->layers();
518 std::vector<DrmCompositionPlane> &comp_planes =
519 display_comp->composition_planes();
520 std::vector<DrmCompositionRegion> &squash_regions =
521 display_comp->squash_regions();
522 std::vector<DrmCompositionRegion> &pre_comp_regions =
523 display_comp->pre_comp_regions();
525 int squash_layer_index = -1;
526 if (squash_regions.size() > 0) {
527 squash_framebuffer_index_ = (squash_framebuffer_index_ + 1) % 2;
528 ret = ApplySquash(display_comp);
532 squash_layer_index = layers.size() - 1;
534 if (UsesSquash(comp_planes)) {
535 DrmFramebuffer &fb = squash_framebuffers_[squash_framebuffer_index_];
536 layers.emplace_back();
537 squash_layer_index = layers.size() - 1;
538 DrmHwcLayer &squash_layer = layers.back();
539 ret = squash_layer.buffer.ImportBuffer(fb.buffer()->handle,
540 display_comp->importer());
542 ALOGE("Failed to import old squashed framebuffer %d", ret);
545 squash_layer.sf_handle = fb.buffer()->handle;
546 squash_layer.blending = DrmHwcBlending::kPreMult;
547 squash_layer.source_crop = DrmHwcRect<float>(
548 0, 0, squash_layer.buffer->width, squash_layer.buffer->height);
549 squash_layer.display_frame = DrmHwcRect<int>(
550 0, 0, squash_layer.buffer->width, squash_layer.buffer->height);
551 ret = display_comp->CreateNextTimelineFence();
554 ALOGE("Failed to create squash framebuffer release fence %d", ret);
558 fb.set_release_fence_fd(ret);
563 bool do_pre_comp = pre_comp_regions.size() > 0;
564 int pre_comp_layer_index = -1;
566 ret = ApplyPreComposite(display_comp);
570 pre_comp_layer_index = layers.size() - 1;
571 framebuffer_index_ = (framebuffer_index_ + 1) % DRM_DISPLAY_BUFFERS;
574 for (DrmCompositionPlane &comp_plane : comp_planes) {
575 switch (comp_plane.type) {
576 case DrmCompositionPlaneType::kSquash:
577 comp_plane.source_layer = squash_layer_index;
579 case DrmCompositionPlaneType::kPrecomp:
582 "Can not use pre composite framebuffer with no pre composite "
586 comp_plane.source_layer = pre_comp_layer_index;
596 int DrmDisplayCompositor::CommitFrame(DrmDisplayComposition *display_comp,
602 std::vector<DrmHwcLayer> &layers = display_comp->layers();
603 std::vector<DrmCompositionPlane> &comp_planes =
604 display_comp->composition_planes();
605 std::vector<DrmCompositionRegion> &pre_comp_regions =
606 display_comp->pre_comp_regions();
608 DrmConnector *connector = drm_->GetConnectorForDisplay(display_);
610 ALOGE("Could not locate connector for display %d", display_);
613 DrmCrtc *crtc = drm_->GetCrtcForDisplay(display_);
615 ALOGE("Could not locate crtc for display %d", display_);
619 drmModeAtomicReqPtr pset = drmModeAtomicAlloc();
621 ALOGE("Failed to allocate property set");
625 if (mode_.needs_modeset) {
626 ret = drmModeAtomicAddProperty(pset, crtc->id(), crtc->mode_property().id(),
627 mode_.blob_id) < 0 ||
628 drmModeAtomicAddProperty(pset, connector->id(),
629 connector->crtc_id_property().id(),
632 ALOGE("Failed to add blob %d to pset", mode_.blob_id);
633 drmModeAtomicFree(pset);
638 for (DrmCompositionPlane &comp_plane : comp_planes) {
639 DrmPlane *plane = comp_plane.plane;
640 DrmCrtc *crtc = comp_plane.crtc;
643 DrmHwcRect<int> display_frame;
644 DrmHwcRect<float> source_crop;
645 uint64_t rotation = 0;
646 uint64_t alpha = 0xFF;
648 if (comp_plane.type != DrmCompositionPlaneType::kDisable) {
649 if (comp_plane.source_layer < 0 ||
650 static_cast<size_t>(comp_plane.source_layer) >= layers.size()) {
651 ALOGE("Source layer index %d out of bounds %zu type=%d",
652 comp_plane.source_layer, layers.size(), comp_plane.type);
655 DrmHwcLayer &layer = layers[comp_plane.source_layer];
656 if (!test_only && layer.acquire_fence.get() >= 0) {
657 int acquire_fence = layer.acquire_fence.get();
658 int total_fence_timeout = 0;
659 for (int i = 0; i < kAcquireWaitTries; ++i) {
660 int fence_timeout = kAcquireWaitTimeoutMs * (1 << i);
661 total_fence_timeout += fence_timeout;
662 ret = sync_wait(acquire_fence, fence_timeout);
664 ALOGW("Acquire fence %d wait %d failed (%d). Total time %d",
665 acquire_fence, i, ret, total_fence_timeout);
668 ALOGE("Failed to wait for acquire %d/%d", acquire_fence, ret);
671 layer.acquire_fence.Close();
674 ALOGE("Expected a valid framebuffer for pset");
677 fb_id = layer.buffer->fb_id;
678 display_frame = layer.display_frame;
679 source_crop = layer.source_crop;
680 if (layer.blending == DrmHwcBlending::kPreMult)
684 if (layer.transform & DrmHwcTransform::kFlipH)
685 rotation |= 1 << DRM_REFLECT_X;
686 if (layer.transform & DrmHwcTransform::kFlipV)
687 rotation |= 1 << DRM_REFLECT_Y;
688 if (layer.transform & DrmHwcTransform::kRotate90)
689 rotation |= 1 << DRM_ROTATE_90;
690 else if (layer.transform & DrmHwcTransform::kRotate180)
691 rotation |= 1 << DRM_ROTATE_180;
692 else if (layer.transform & DrmHwcTransform::kRotate270)
693 rotation |= 1 << DRM_ROTATE_270;
695 // Disable the plane if there's no framebuffer
697 ret = drmModeAtomicAddProperty(pset, plane->id(),
698 plane->crtc_property().id(), 0) < 0 ||
699 drmModeAtomicAddProperty(pset, plane->id(),
700 plane->fb_property().id(), 0) < 0;
702 ALOGE("Failed to add plane %d disable to pset", plane->id());
708 // TODO: Once we have atomic test, this should fall back to GL
709 if (rotation && plane->rotation_property().id() == 0) {
710 ALOGE("Rotation is not supported on plane %d", plane->id());
715 // TODO: Once we have atomic test, this should fall back to GL
716 if (alpha != 0xFF && plane->alpha_property().id() == 0) {
717 ALOGE("Alpha is not supported on plane %d", plane->id());
722 ret = drmModeAtomicAddProperty(pset, plane->id(),
723 plane->crtc_property().id(), crtc->id()) < 0;
724 ret |= drmModeAtomicAddProperty(pset, plane->id(),
725 plane->fb_property().id(), fb_id) < 0;
726 ret |= drmModeAtomicAddProperty(pset, plane->id(),
727 plane->crtc_x_property().id(),
728 display_frame.left) < 0;
729 ret |= drmModeAtomicAddProperty(pset, plane->id(),
730 plane->crtc_y_property().id(),
731 display_frame.top) < 0;
732 ret |= drmModeAtomicAddProperty(
733 pset, plane->id(), plane->crtc_w_property().id(),
734 display_frame.right - display_frame.left) < 0;
735 ret |= drmModeAtomicAddProperty(
736 pset, plane->id(), plane->crtc_h_property().id(),
737 display_frame.bottom - display_frame.top) < 0;
738 ret |= drmModeAtomicAddProperty(pset, plane->id(),
739 plane->src_x_property().id(),
740 (int)(source_crop.left) << 16) < 0;
741 ret |= drmModeAtomicAddProperty(pset, plane->id(),
742 plane->src_y_property().id(),
743 (int)(source_crop.top) << 16) < 0;
744 ret |= drmModeAtomicAddProperty(
745 pset, plane->id(), plane->src_w_property().id(),
746 (int)(source_crop.right - source_crop.left) << 16) < 0;
747 ret |= drmModeAtomicAddProperty(
748 pset, plane->id(), plane->src_h_property().id(),
749 (int)(source_crop.bottom - source_crop.top) << 16) < 0;
751 ALOGE("Failed to add plane %d to set", plane->id());
755 if (plane->rotation_property().id()) {
756 ret = drmModeAtomicAddProperty(pset, plane->id(),
757 plane->rotation_property().id(),
760 ALOGE("Failed to add rotation property %d to plane %d",
761 plane->rotation_property().id(), plane->id());
766 if (plane->alpha_property().id()) {
767 ret = drmModeAtomicAddProperty(pset, plane->id(),
768 plane->alpha_property().id(),
771 ALOGE("Failed to add alpha property %d to plane %d",
772 plane->alpha_property().id(), plane->id());
780 uint32_t flags = DRM_MODE_ATOMIC_ALLOW_MODESET;
782 flags |= DRM_MODE_ATOMIC_TEST_ONLY;
784 ret = drmModeAtomicCommit(drm_->fd(), pset, flags, drm_);
787 ALOGI("Commit test pset failed ret=%d\n", ret);
789 ALOGE("Failed to commit pset ret=%d\n", ret);
790 drmModeAtomicFree(pset);
795 drmModeAtomicFree(pset);
797 if (!test_only && mode_.needs_modeset) {
798 ret = drm_->DestroyPropertyBlob(mode_.old_blob_id);
800 ALOGE("Failed to destroy old mode property blob %" PRIu32 "/%d",
801 mode_.old_blob_id, ret);
805 /* TODO: Add dpms to the pset when the kernel supports it */
806 ret = ApplyDpms(display_comp);
808 ALOGE("Failed to apply DPMS after modeset %d\n", ret);
812 connector->set_active_mode(mode_.mode);
813 mode_.old_blob_id = mode_.blob_id;
815 mode_.needs_modeset = false;
821 int DrmDisplayCompositor::ApplyDpms(DrmDisplayComposition *display_comp) {
822 DrmConnector *conn = drm_->GetConnectorForDisplay(display_);
824 ALOGE("Failed to get DrmConnector for display %d", display_);
828 const DrmProperty &prop = conn->dpms_property();
829 int ret = drmModeConnectorSetProperty(drm_->fd(), conn->id(), prop.id(),
830 display_comp->dpms_mode());
832 ALOGE("Failed to set DPMS property for connector %d", conn->id());
838 std::tuple<int, uint32_t> DrmDisplayCompositor::CreateModeBlob(
839 const DrmMode &mode) {
840 struct drm_mode_modeinfo drm_mode;
841 memset(&drm_mode, 0, sizeof(drm_mode));
842 mode.ToDrmModeModeInfo(&drm_mode);
845 int ret = drm_->CreatePropertyBlob(&drm_mode,
846 sizeof(struct drm_mode_modeinfo), &id);
848 ALOGE("Failed to create mode property blob %d", ret);
849 return std::make_tuple(ret, 0);
851 ALOGE("Create blob_id %" PRIu32 "\n", id);
852 return std::make_tuple(ret, id);
855 void DrmDisplayCompositor::ApplyFrame(
856 std::unique_ptr<DrmDisplayComposition> composition, int status) {
860 ret = CommitFrame(composition.get(), false);
863 ALOGE("Composite failed for display %d", display_);
865 // Disable the hw used by the last active composition. This allows us to
866 // signal the release fences from that composition to avoid hanging.
867 if (DisablePlanes(active_composition_.get()))
870 ++dump_frames_composited_;
872 if (active_composition_)
873 active_composition_->SignalCompositionDone();
875 ret = pthread_mutex_lock(&lock_);
877 ALOGE("Failed to acquire lock for active_composition swap");
879 active_composition_.swap(composition);
882 ret = pthread_mutex_unlock(&lock_);
884 ALOGE("Failed to release lock for active_composition swap");
887 int DrmDisplayCompositor::Composite() {
890 if (!pre_compositor_) {
891 pre_compositor_.reset(new GLWorkerCompositor());
892 int ret = pre_compositor_->Init();
894 ALOGE("Failed to initialize OpenGL compositor %d", ret);
899 int ret = pthread_mutex_lock(&lock_);
901 ALOGE("Failed to acquire compositor lock %d", ret);
904 if (composite_queue_.empty()) {
905 ret = pthread_mutex_unlock(&lock_);
907 ALOGE("Failed to release compositor lock %d", ret);
911 std::unique_ptr<DrmDisplayComposition> composition(
912 std::move(composite_queue_.front()));
914 composite_queue_.pop();
916 ret = pthread_mutex_unlock(&lock_);
918 ALOGE("Failed to release compositor lock %d", ret);
922 switch (composition->type()) {
923 case DRM_COMPOSITION_TYPE_FRAME:
924 ret = PrepareFrame(composition.get());
926 ALOGE("Failed to prepare frame for display %d", display_);
929 if (composition->geometry_changed()) {
930 // Send the composition to the kernel to ensure we can commit it. This
931 // is just a test, it won't actually commit the frame. If rejected,
932 // squash the frame into one layer and use the squashed composition
933 ret = CommitFrame(composition.get(), true);
935 ALOGI("Commit test failed, squashing frame for display %d", display_);
936 use_hw_overlays_ = !ret;
939 // If use_hw_overlays_ is false, we can't use hardware to composite the
940 // frame. So squash all layers into a single composition and queue that
942 if (!use_hw_overlays_) {
943 std::unique_ptr<DrmDisplayComposition> squashed = CreateComposition();
944 ret = SquashFrame(composition.get(), squashed.get());
946 composition = std::move(squashed);
948 ALOGE("Failed to squash frame for display %d", display_);
952 frame_worker_.QueueFrame(std::move(composition), ret);
954 case DRM_COMPOSITION_TYPE_DPMS:
955 ret = ApplyDpms(composition.get());
957 ALOGE("Failed to apply dpms for display %d", display_);
959 case DRM_COMPOSITION_TYPE_MODESET:
960 mode_.mode = composition->display_mode();
962 drm_->DestroyPropertyBlob(mode_.blob_id);
963 std::tie(ret, mode_.blob_id) = CreateModeBlob(mode_.mode);
965 ALOGE("Failed to create mode blob for display %d", display_);
968 mode_.needs_modeset = true;
971 ALOGE("Unknown composition type %d", composition->type());
978 bool DrmDisplayCompositor::HaveQueuedComposites() const {
979 int ret = pthread_mutex_lock(&lock_);
981 ALOGE("Failed to acquire compositor lock %d", ret);
985 bool empty_ret = !composite_queue_.empty();
987 ret = pthread_mutex_unlock(&lock_);
989 ALOGE("Failed to release compositor lock %d", ret);
996 int DrmDisplayCompositor::SquashAll() {
997 AutoLock lock(&lock_, "compositor");
998 int ret = lock.Lock();
1002 if (!active_composition_)
1005 std::unique_ptr<DrmDisplayComposition> comp = CreateComposition();
1006 ret = SquashFrame(active_composition_.get(), comp.get());
1008 // ApplyFrame needs the lock
1012 ApplyFrame(std::move(comp), 0);
1018 // - 0 if src is successfully squashed into dst
1019 // - -EALREADY if the src is already squashed
1020 // - Appropriate error if the squash fails
1021 int DrmDisplayCompositor::SquashFrame(DrmDisplayComposition *src,
1022 DrmDisplayComposition *dst) {
1023 if (src->type() != DRM_COMPOSITION_TYPE_FRAME)
1026 std::vector<DrmCompositionPlane> &src_planes = src->composition_planes();
1027 std::vector<DrmHwcLayer> &src_layers = src->layers();
1029 // Make sure there is more than one layer to squash.
1030 size_t src_planes_with_layer = std::count_if(
1031 src_planes.begin(), src_planes.end(), [](DrmCompositionPlane &p) {
1032 return p.type == DrmCompositionPlaneType::kLayer;
1034 if (src_planes_with_layer <= 1)
1037 int pre_comp_layer_index;
1039 int ret = dst->Init(drm_, src->crtc(), src->importer(), src->frame_no());
1041 ALOGE("Failed to init squash all composition %d", ret);
1045 std::vector<DrmPlane *> primary_planes;
1046 std::vector<DrmPlane *> fake_overlay_planes;
1047 std::vector<DrmHwcLayer> dst_layers;
1048 for (DrmCompositionPlane &comp_plane : src_planes) {
1049 // Composition planes without DRM planes should never happen
1050 if (comp_plane.plane == NULL) {
1051 ALOGE("Skipping squash all because of NULL plane");
1053 goto move_layers_back;
1056 if (comp_plane.type == DrmCompositionPlaneType::kDisable ||
1057 comp_plane.source_layer < 0)
1060 DrmHwcLayer &layer = src_layers[comp_plane.source_layer];
1062 // Squashing protected layers is impossible.
1063 if (layer.protected_usage()) {
1065 goto move_layers_back;
1068 // The OutputFds point to freed memory after hwc_set returns. They are
1069 // returned to the default to prevent DrmDisplayComposition::Plan from
1070 // filling the OutputFds.
1071 layer.release_fence = OutputFd();
1072 dst_layers.emplace_back(std::move(layer));
1074 if (comp_plane.plane->type() == DRM_PLANE_TYPE_PRIMARY &&
1075 primary_planes.size() == 0)
1076 primary_planes.push_back(comp_plane.plane);
1078 dst->AddPlaneDisable(comp_plane.plane);
1081 ret = dst->SetLayers(dst_layers.data(), dst_layers.size(), false);
1083 ALOGE("Failed to set layers for squash all composition %d", ret);
1084 goto move_layers_back;
1088 dst->Plan(NULL /* SquashState */, &primary_planes, &fake_overlay_planes);
1090 ALOGE("Failed to plan for squash all composition %d", ret);
1091 goto move_layers_back;
1094 ret = ApplyPreComposite(dst);
1096 ALOGE("Failed to pre-composite for squash all composition %d", ret);
1097 goto move_layers_back;
1100 pre_comp_layer_index = dst->layers().size() - 1;
1101 framebuffer_index_ = (framebuffer_index_ + 1) % DRM_DISPLAY_BUFFERS;
1103 for (DrmCompositionPlane &plane : dst->composition_planes())
1104 if (plane.type == DrmCompositionPlaneType::kPrecomp)
1105 plane.source_layer = pre_comp_layer_index;
1109 // TODO(zachr): think of a better way to transfer ownership back to the active
1112 for (size_t plane_index = 0;
1113 plane_index < src_planes.size() && plane_index < dst_layers.size();
1115 size_t source_layer_index = src_planes[plane_index].source_layer;
1116 src_layers[source_layer_index] = std::move(dst_layers[plane_index]);
1122 void DrmDisplayCompositor::Dump(std::ostringstream *out) const {
1123 int ret = pthread_mutex_lock(&lock_);
1127 uint64_t num_frames = dump_frames_composited_;
1128 dump_frames_composited_ = 0;
1131 ret = clock_gettime(CLOCK_MONOTONIC, &ts);
1133 pthread_mutex_unlock(&lock_);
1137 uint64_t cur_ts = ts.tv_sec * 1000 * 1000 * 1000 + ts.tv_nsec;
1138 uint64_t num_ms = (cur_ts - dump_last_timestamp_ns_) / (1000 * 1000);
1139 float fps = num_ms ? (num_frames * 1000.0f) / (num_ms) : 0.0f;
1141 *out << "--DrmDisplayCompositor[" << display_
1142 << "]: num_frames=" << num_frames << " num_ms=" << num_ms
1143 << " fps=" << fps << "\n";
1145 dump_last_timestamp_ns_ = cur_ts;
1147 if (active_composition_)
1148 active_composition_->Dump(out);
1150 squash_state_.Dump(out);
1152 pthread_mutex_unlock(&lock_);