#define LOG_TAG "hwc-drm-display-compositor"
#include "drmdisplaycompositor.h"
-#include "drmcrtc.h"
-#include "drmplane.h"
-#include "drmresources.h"
-#include "glworker.h"
-#include <algorithm>
#include <pthread.h>
-#include <sstream>
+#include <sched.h>
#include <stdlib.h>
#include <time.h>
+#include <sstream>
#include <vector>
-#include <drm/drm_mode.h>
#include <cutils/log.h>
+#include <drm/drm_mode.h>
#include <sync/sync.h>
#include <utils/Trace.h>
+#include "autolock.h"
+#include "drmcrtc.h"
+#include "drmplane.h"
+#include "drmresources.h"
+#include "glworker.h"
+
+#define DRM_DISPLAY_COMPOSITOR_MAX_QUEUE_DEPTH 2
+
namespace android {
+void SquashState::Init(DrmHwcLayer *layers, size_t num_layers) {
+ generation_number_++;
+ valid_history_ = 0;
+ regions_.clear();
+ last_handles_.clear();
+
+ std::vector<DrmHwcRect<int>> in_rects;
+ for (size_t i = 0; i < num_layers; i++) {
+ DrmHwcLayer *layer = &layers[i];
+ in_rects.emplace_back(layer->display_frame);
+ last_handles_.push_back(layer->sf_handle);
+ }
+
+ std::vector<separate_rects::RectSet<uint64_t, int>> out_regions;
+ separate_rects::separate_rects_64(in_rects, &out_regions);
+
+ for (const separate_rects::RectSet<uint64_t, int> &out_region : out_regions) {
+ regions_.emplace_back();
+ Region ®ion = regions_.back();
+ region.rect = out_region.rect;
+ region.layer_refs = out_region.id_set.getBits();
+ }
+}
+
+void SquashState::GenerateHistory(DrmHwcLayer *layers, size_t num_layers,
+ std::vector<bool> &changed_regions) const {
+ changed_regions.resize(regions_.size());
+ if (num_layers != last_handles_.size()) {
+ ALOGE("SquashState::GenerateHistory expected %zu layers but got %zu layers",
+ last_handles_.size(), num_layers);
+ return;
+ }
+ std::bitset<kMaxLayers> changed_layers;
+ for (size_t i = 0; i < last_handles_.size(); i++) {
+ DrmHwcLayer *layer = &layers[i];
+ // Protected layers can't be squashed so we treat them as constantly
+ // changing.
+ if (layer->protected_usage() || last_handles_[i] != layer->sf_handle)
+ changed_layers.set(i);
+ }
+
+ for (size_t i = 0; i < regions_.size(); i++) {
+ changed_regions[i] = (regions_[i].layer_refs & changed_layers).any();
+ }
+}
+
+void SquashState::StableRegionsWithMarginalHistory(
+ const std::vector<bool> &changed_regions,
+ std::vector<bool> &stable_regions) const {
+ stable_regions.resize(regions_.size());
+ for (size_t i = 0; i < regions_.size(); i++) {
+ stable_regions[i] = !changed_regions[i] && is_stable(i);
+ }
+}
+
+void SquashState::RecordHistory(DrmHwcLayer *layers, size_t num_layers,
+ const std::vector<bool> &changed_regions) {
+ if (num_layers != last_handles_.size()) {
+ ALOGE("SquashState::RecordHistory expected %zu layers but got %zu layers",
+ last_handles_.size(), num_layers);
+ return;
+ }
+ if (changed_regions.size() != regions_.size()) {
+ ALOGE("SquashState::RecordHistory expected %zu regions but got %zu regions",
+ regions_.size(), changed_regions.size());
+ return;
+ }
+
+ for (size_t i = 0; i < last_handles_.size(); i++) {
+ DrmHwcLayer *layer = &layers[i];
+ last_handles_[i] = layer->sf_handle;
+ }
+
+ for (size_t i = 0; i < regions_.size(); i++) {
+ regions_[i].change_history <<= 1;
+ regions_[i].change_history.set(/* LSB */ 0, changed_regions[i]);
+ }
+
+ valid_history_++;
+}
+
+bool SquashState::RecordAndCompareSquashed(
+ const std::vector<bool> &squashed_regions) {
+ if (squashed_regions.size() != regions_.size()) {
+ ALOGE(
+ "SquashState::RecordAndCompareSquashed expected %zu regions but got "
+ "%zu regions",
+ regions_.size(), squashed_regions.size());
+ return false;
+ }
+ bool changed = false;
+ for (size_t i = 0; i < regions_.size(); i++) {
+ if (regions_[i].squashed != squashed_regions[i]) {
+ regions_[i].squashed = squashed_regions[i];
+ changed = true;
+ }
+ }
+ return changed;
+}
+
+void SquashState::Dump(std::ostringstream *out) const {
+ *out << "----SquashState generation=" << generation_number_
+ << " history=" << valid_history_ << "\n"
+ << " Regions: count=" << regions_.size() << "\n";
+ for (size_t i = 0; i < regions_.size(); i++) {
+ const Region ®ion = regions_[i];
+ *out << " [" << i << "]"
+ << " history=" << region.change_history << " rect";
+ region.rect.Dump(out);
+ *out << " layers=(";
+ bool first = true;
+ for (size_t layer_index = 0; layer_index < kMaxLayers; layer_index++) {
+ if ((region.layer_refs &
+ std::bitset<kMaxLayers>((size_t)1 << layer_index))
+ .any()) {
+ if (!first)
+ *out << " ";
+ first = false;
+ *out << layer_index;
+ }
+ }
+ *out << ")";
+ if (region.squashed)
+ *out << " squashed";
+ *out << "\n";
+ }
+}
+
+static bool UsesSquash(const std::vector<DrmCompositionPlane> &comp_planes) {
+ return std::any_of(comp_planes.begin(), comp_planes.end(),
+ [](const DrmCompositionPlane &plane) {
+ return plane.source_layer ==
+ DrmCompositionPlane::kSourceSquash;
+ });
+}
+
+DrmDisplayCompositor::FrameWorker::FrameWorker(DrmDisplayCompositor *compositor)
+ : Worker("frame-worker", HAL_PRIORITY_URGENT_DISPLAY),
+ compositor_(compositor) {
+}
+
+DrmDisplayCompositor::FrameWorker::~FrameWorker() {
+}
+
+int DrmDisplayCompositor::FrameWorker::Init() {
+ return InitWorker();
+}
+
+void DrmDisplayCompositor::FrameWorker::QueueFrame(
+ std::unique_ptr<DrmDisplayComposition> composition, int status) {
+ Lock();
+ FrameState frame;
+ frame.composition = std::move(composition);
+ frame.status = status;
+ frame_queue_.push(std::move(frame));
+ SignalLocked();
+ Unlock();
+}
+
+void DrmDisplayCompositor::FrameWorker::Routine() {
+ int ret = Lock();
+ if (ret) {
+ ALOGE("Failed to lock worker, %d", ret);
+ return;
+ }
+
+ int wait_ret = 0;
+ if (frame_queue_.empty()) {
+ wait_ret = WaitForSignalOrExitLocked();
+ }
+
+ FrameState frame;
+ if (!frame_queue_.empty()) {
+ frame = std::move(frame_queue_.front());
+ frame_queue_.pop();
+ }
+
+ ret = Unlock();
+ if (ret) {
+ ALOGE("Failed to unlock worker, %d", ret);
+ return;
+ }
+
+ if (wait_ret == -EINTR) {
+ return;
+ } else if (wait_ret) {
+ ALOGE("Failed to wait for signal, %d", wait_ret);
+ return;
+ }
+
+ compositor_->ApplyFrame(std::move(frame.composition), frame.status);
+}
+
DrmDisplayCompositor::DrmDisplayCompositor()
: drm_(NULL),
display_(-1),
worker_(this),
- frame_no_(0),
+ frame_worker_(this),
initialized_(false),
active_(false),
+ use_hw_overlays_(true),
framebuffer_index_(0),
+ squash_framebuffer_index_(0),
dump_frames_composited_(0),
dump_last_timestamp_ns_(0) {
struct timespec ts;
return;
worker_.Exit();
+ frame_worker_.Exit();
int ret = pthread_mutex_lock(&lock_);
if (ret)
ALOGE("Failed to acquire compositor lock %d", ret);
+ if (mode_.blob_id)
+ drm_->DestroyPropertyBlob(mode_.blob_id);
+ if (mode_.old_blob_id)
+ drm_->DestroyPropertyBlob(mode_.old_blob_id);
+
while (!composite_queue_.empty()) {
composite_queue_.front().reset();
composite_queue_.pop();
ALOGE("Failed to initialize compositor worker %d\n", ret);
return ret;
}
+ ret = frame_worker_.Init();
+ if (ret) {
+ pthread_mutex_destroy(&lock_);
+ ALOGE("Failed to initialize frame worker %d\n", ret);
+ return ret;
+ }
initialized_ = true;
return 0;
}
+std::unique_ptr<DrmDisplayComposition> DrmDisplayCompositor::CreateComposition()
+ const {
+ return std::unique_ptr<DrmDisplayComposition>(new DrmDisplayComposition());
+}
+
int DrmDisplayCompositor::QueueComposition(
std::unique_ptr<DrmDisplayComposition> composition) {
switch (composition->type()) {
*/
active_ = (composition->dpms_mode() == DRM_MODE_DPMS_ON);
break;
+ case DRM_COMPOSITION_TYPE_MODESET:
+ break;
case DRM_COMPOSITION_TYPE_EMPTY:
return 0;
default:
return ret;
}
+ // Block the queue if it gets too large. Otherwise, SurfaceFlinger will start
+ // to eat our buffer handles when we get about 1 second behind.
+ while (composite_queue_.size() >= DRM_DISPLAY_COMPOSITOR_MAX_QUEUE_DEPTH) {
+ pthread_mutex_unlock(&lock_);
+ sched_yield();
+ pthread_mutex_lock(&lock_);
+ }
+
composite_queue_.push(std::move(composition));
ret = pthread_mutex_unlock(&lock_);
return 0;
}
-static bool drm_composition_layer_has_plane(
- const DrmCompositionLayer_t &comp_layer) {
- if (comp_layer.plane != NULL)
- if (comp_layer.plane->type() == DRM_PLANE_TYPE_OVERLAY ||
- comp_layer.plane->type() == DRM_PLANE_TYPE_PRIMARY)
- return true;
- return false;
-}
-
-static bool drm_composition_layer_has_no_plane(
- const DrmCompositionLayer_t &comp_layer) {
- return comp_layer.plane == NULL;
-}
-
-int DrmDisplayCompositor::ApplyPreComposite(
- DrmDisplayComposition *display_comp) {
- int ret = 0;
- DrmCompositionLayerVector_t *layers = display_comp->GetCompositionLayers();
-
+std::tuple<uint32_t, uint32_t, int>
+DrmDisplayCompositor::GetActiveModeResolution() {
DrmConnector *connector = drm_->GetConnectorForDisplay(display_);
if (connector == NULL) {
ALOGE("Failed to determine display mode: no connector for display %d",
display_);
- return -ENODEV;
+ return std::make_tuple(0, 0, -ENODEV);
}
const DrmMode &mode = connector->active_mode();
- DrmFramebuffer &fb = framebuffers_[framebuffer_index_];
- ret = fb.WaitReleased(-1);
+ return std::make_tuple(mode.h_display(), mode.v_display(), 0);
+}
+
+int DrmDisplayCompositor::PrepareFramebuffer(
+ DrmFramebuffer &fb, DrmDisplayComposition *display_comp) {
+ int ret = fb.WaitReleased(-1);
if (ret) {
ALOGE("Failed to wait for framebuffer release %d", ret);
return ret;
}
+ uint32_t width, height;
+ std::tie(width, height, ret) = GetActiveModeResolution();
+ if (ret) {
+ ALOGE(
+ "Failed to allocate framebuffer because the display resolution could "
+ "not be determined %d",
+ ret);
+ return ret;
+ }
+
fb.set_release_fence_fd(-1);
- if (!fb.Allocate(mode.h_display(), mode.v_display())) {
- ALOGE("Failed to allocate framebuffer with size %dx%d", mode.h_display(),
- mode.v_display());
+ if (!fb.Allocate(width, height)) {
+ ALOGE("Failed to allocate framebuffer with size %dx%d", width, height);
return -ENOMEM;
}
- std::vector<hwc_layer_1_t> pre_comp_layers;
- for (auto &comp_layer : *layers) {
- if (comp_layer.plane == NULL) {
- pre_comp_layers.push_back(comp_layer.layer);
- pre_comp_layers.back().handle = comp_layer.handle;
- comp_layer.layer.acquireFenceFd = -1;
- }
+ display_comp->layers().emplace_back();
+ DrmHwcLayer &pre_comp_layer = display_comp->layers().back();
+ pre_comp_layer.sf_handle = fb.buffer()->handle;
+ pre_comp_layer.blending = DrmHwcBlending::kPreMult;
+ pre_comp_layer.source_crop = DrmHwcRect<float>(0, 0, width, height);
+ pre_comp_layer.display_frame = DrmHwcRect<int>(0, 0, width, height);
+ ret = pre_comp_layer.buffer.ImportBuffer(fb.buffer()->handle,
+ display_comp->importer());
+ if (ret) {
+ ALOGE("Failed to import framebuffer for display %d", ret);
+ return ret;
}
- ret = pre_compositor_->CompositeAndFinish(
- pre_comp_layers.data(), pre_comp_layers.size(), fb.buffer());
+ return ret;
+}
- for (auto &pre_comp_layer : pre_comp_layers) {
- if (pre_comp_layer.acquireFenceFd >= 0) {
- close(pre_comp_layer.acquireFenceFd);
- pre_comp_layer.acquireFenceFd = -1;
- }
- }
+int DrmDisplayCompositor::ApplySquash(DrmDisplayComposition *display_comp) {
+ int ret = 0;
+ DrmFramebuffer &fb = squash_framebuffers_[squash_framebuffer_index_];
+ ret = PrepareFramebuffer(fb, display_comp);
if (ret) {
- ALOGE("Failed to composite layers");
+ ALOGE("Failed to prepare framebuffer for squash %d", ret);
return ret;
}
- DrmCompositionLayer_t &pre_comp_layer =
- layers->at(display_comp->pre_composition_layer_index());
- ret = display_comp->importer()->ImportBuffer(fb.buffer()->handle,
- &pre_comp_layer.bo);
+ std::vector<DrmCompositionRegion> ®ions = display_comp->squash_regions();
+ ret = pre_compositor_->Composite(display_comp->layers().data(),
+ regions.data(), regions.size(), fb.buffer());
+ pre_compositor_->Finish();
+
if (ret) {
- ALOGE("Failed to import handle of layer %d", ret);
+ ALOGE("Failed to squash layers");
return ret;
}
- hwc_layer_1_t &pre_comp_output_layer = pre_comp_layer.layer;
- pre_comp_output_layer.handle = fb.buffer()->handle;
- pre_comp_output_layer.visibleRegionScreen.rects =
- &pre_comp_output_layer.displayFrame;
- pre_comp_output_layer.sourceCropf.right =
- pre_comp_output_layer.displayFrame.right = fb.buffer()->getWidth();
- pre_comp_output_layer.sourceCropf.bottom =
- pre_comp_output_layer.displayFrame.bottom = fb.buffer()->getHeight();
- fb.set_release_fence_fd(pre_comp_output_layer.releaseFenceFd);
- framebuffer_index_ = (framebuffer_index_ + 1) % DRM_DISPLAY_BUFFERS;
+ ret = display_comp->CreateNextTimelineFence();
+ if (ret <= 0) {
+ ALOGE("Failed to create squash framebuffer release fence %d", ret);
+ return ret;
+ }
- display_comp->RemoveNoPlaneLayers();
- display_comp->SignalPreCompositionDone();
- return ret;
+ fb.set_release_fence_fd(ret);
+ display_comp->SignalSquashDone();
+
+ return 0;
}
-int DrmDisplayCompositor::ApplyFrame(DrmDisplayComposition *display_comp) {
+int DrmDisplayCompositor::ApplyPreComposite(
+ DrmDisplayComposition *display_comp) {
int ret = 0;
- if (display_comp->pre_composition_layer_index() >= 0) {
- ret = ApplyPreComposite(display_comp);
- if (ret)
- return ret;
+ DrmFramebuffer &fb = framebuffers_[framebuffer_index_];
+ ret = PrepareFramebuffer(fb, display_comp);
+ if (ret) {
+ ALOGE("Failed to prepare framebuffer for pre-composite %d", ret);
+ return ret;
}
- drmModePropertySetPtr pset = drmModePropertySetAlloc();
+ std::vector<DrmCompositionRegion> ®ions = display_comp->pre_comp_regions();
+ ret = pre_compositor_->Composite(display_comp->layers().data(),
+ regions.data(), regions.size(), fb.buffer());
+ pre_compositor_->Finish();
+
+ if (ret) {
+ ALOGE("Failed to pre-composite layers");
+ return ret;
+ }
+
+ ret = display_comp->CreateNextTimelineFence();
+ if (ret <= 0) {
+ ALOGE("Failed to create pre-composite framebuffer release fence %d", ret);
+ return ret;
+ }
+
+ fb.set_release_fence_fd(ret);
+ display_comp->SignalPreCompDone();
+
+ return 0;
+}
+
+int DrmDisplayCompositor::DisablePlanes(DrmDisplayComposition *display_comp) {
+ drmModeAtomicReqPtr pset = drmModeAtomicAlloc();
if (!pset) {
ALOGE("Failed to allocate property set");
return -ENOMEM;
}
- DrmCompositionLayerVector_t *layers = display_comp->GetCompositionLayers();
- for (DrmCompositionLayerVector_t::iterator iter = layers->begin();
- iter != layers->end(); ++iter) {
- hwc_layer_1_t *layer = &iter->layer;
+ int ret;
+ std::vector<DrmCompositionPlane> &comp_planes =
+ display_comp->composition_planes();
+ for (DrmCompositionPlane &comp_plane : comp_planes) {
+ DrmPlane *plane = comp_plane.plane;
+ ret = drmModeAtomicAddProperty(pset, plane->id(),
+ plane->crtc_property().id(), 0) < 0 ||
+ drmModeAtomicAddProperty(pset, plane->id(), plane->fb_property().id(),
+ 0) < 0;
+ if (ret) {
+ ALOGE("Failed to add plane %d disable to pset", plane->id());
+ drmModeAtomicFree(pset);
+ return ret;
+ }
+ }
- if (layer->acquireFenceFd >= 0) {
- ret = sync_wait(layer->acquireFenceFd, -1);
+ ret = drmModeAtomicCommit(drm_->fd(), pset, 0, drm_);
+ if (ret) {
+ ALOGE("Failed to commit pset ret=%d\n", ret);
+ drmModeAtomicFree(pset);
+ return ret;
+ }
+
+ drmModeAtomicFree(pset);
+ return 0;
+}
+
+int DrmDisplayCompositor::PrepareFrame(DrmDisplayComposition *display_comp) {
+ int ret = 0;
+
+ std::vector<DrmHwcLayer> &layers = display_comp->layers();
+ std::vector<DrmCompositionPlane> &comp_planes =
+ display_comp->composition_planes();
+ std::vector<DrmCompositionRegion> &squash_regions =
+ display_comp->squash_regions();
+ std::vector<DrmCompositionRegion> &pre_comp_regions =
+ display_comp->pre_comp_regions();
+
+ int squash_layer_index = -1;
+ if (squash_regions.size() > 0) {
+ squash_framebuffer_index_ = (squash_framebuffer_index_ + 1) % 2;
+ ret = ApplySquash(display_comp);
+ if (ret)
+ return ret;
+
+ squash_layer_index = layers.size() - 1;
+ } else {
+ if (UsesSquash(comp_planes)) {
+ DrmFramebuffer &fb = squash_framebuffers_[squash_framebuffer_index_];
+ layers.emplace_back();
+ squash_layer_index = layers.size() - 1;
+ DrmHwcLayer &squash_layer = layers.back();
+ ret = squash_layer.buffer.ImportBuffer(fb.buffer()->handle,
+ display_comp->importer());
if (ret) {
- ALOGE("Failed to wait for acquire %d/%d", layer->acquireFenceFd, ret);
- drmModePropertySetFree(pset);
+ ALOGE("Failed to import old squashed framebuffer %d", ret);
return ret;
}
- close(layer->acquireFenceFd);
- layer->acquireFenceFd = -1;
+ squash_layer.sf_handle = fb.buffer()->handle;
+ squash_layer.blending = DrmHwcBlending::kPreMult;
+ squash_layer.source_crop = DrmHwcRect<float>(
+ 0, 0, squash_layer.buffer->width, squash_layer.buffer->height);
+ squash_layer.display_frame = DrmHwcRect<int>(
+ 0, 0, squash_layer.buffer->width, squash_layer.buffer->height);
+ ret = display_comp->CreateNextTimelineFence();
+
+ if (ret <= 0) {
+ ALOGE("Failed to create squash framebuffer release fence %d", ret);
+ return ret;
+ }
+
+ fb.set_release_fence_fd(ret);
+ ret = 0;
}
+ }
- DrmPlane *plane = iter->plane;
- DrmCrtc *crtc = iter->crtc;
+ bool do_pre_comp = pre_comp_regions.size() > 0;
+ int pre_comp_layer_index = -1;
+ if (do_pre_comp) {
+ ret = ApplyPreComposite(display_comp);
+ if (ret)
+ return ret;
- // Disable the plane if there's no crtc
- if (!crtc) {
- ret = drmModePropertySetAdd(pset, plane->id(),
- plane->crtc_property().id(), 0) ||
- drmModePropertySetAdd(pset, plane->id(), plane->fb_property().id(),
- 0);
- if (ret) {
- ALOGE("Failed to add plane %d disable to pset", plane->id());
- break;
- }
- continue;
- }
+ pre_comp_layer_index = layers.size() - 1;
+ framebuffer_index_ = (framebuffer_index_ + 1) % DRM_DISPLAY_BUFFERS;
+ }
- uint64_t rotation;
- switch (layer->transform) {
- case HWC_TRANSFORM_FLIP_H:
- rotation = 1 << DRM_REFLECT_X;
+ for (DrmCompositionPlane &comp_plane : comp_planes) {
+ switch (comp_plane.source_layer) {
+ case DrmCompositionPlane::kSourceSquash:
+ comp_plane.source_layer = squash_layer_index;
+ break;
+ case DrmCompositionPlane::kSourcePreComp:
+ if (!do_pre_comp) {
+ ALOGE(
+ "Can not use pre composite framebuffer with no pre composite "
+ "regions");
+ return -EINVAL;
+ }
+ comp_plane.source_layer = pre_comp_layer_index;
break;
- case HWC_TRANSFORM_FLIP_V:
- rotation = 1 << DRM_REFLECT_Y;
+ default:
break;
- case HWC_TRANSFORM_ROT_90:
- rotation = 1 << DRM_ROTATE_90;
+ }
+ }
+
+ return ret;
+}
+
+/* rotation property bits copied from kernel*/
+#define DRM_ROTATE_MASK 0x0f
+#define DRM_ROTATE_0 0
+#define DRM_ROTATE_90 1
+#define DRM_ROTATE_180 2
+#define DRM_ROTATE_270 3
+#define DRM_REFLECT_MASK (~DRM_ROTATE_MASK)
+#define DRM_REFLECT_X 4
+#define DRM_REFLECT_Y 5
+
+int DrmDisplayCompositor::CommitFrame(DrmDisplayComposition *display_comp,
+ bool test_only) {
+ ATRACE_CALL();
+
+ int ret = 0;
+
+ std::vector<DrmHwcLayer> &layers = display_comp->layers();
+ std::vector<DrmCompositionPlane> &comp_planes =
+ display_comp->composition_planes();
+ std::vector<DrmCompositionRegion> &pre_comp_regions =
+ display_comp->pre_comp_regions();
+
+ DrmFramebuffer *pre_comp_fb;
+
+ DrmConnector *connector = drm_->GetConnectorForDisplay(display_);
+ if (!connector) {
+ ALOGE("Could not locate connector for display %d", display_);
+ return -ENODEV;
+ }
+ DrmCrtc *crtc = drm_->GetCrtcForDisplay(display_);
+ if (!crtc) {
+ ALOGE("Could not locate crtc for display %d", display_);
+ return -ENODEV;
+ }
+
+ drmModeAtomicReqPtr pset = drmModeAtomicAlloc();
+ if (!pset) {
+ ALOGE("Failed to allocate property set");
+ return -ENOMEM;
+ }
+
+ if (mode_.needs_modeset) {
+ ret = drmModeAtomicAddProperty(pset, crtc->id(), crtc->mode_property().id(),
+ mode_.blob_id) < 0 ||
+ drmModeAtomicAddProperty(pset, connector->id(),
+ connector->crtc_id_property().id(),
+ crtc->id()) < 0;
+ if (ret) {
+ ALOGE("Failed to add blob %d to pset", mode_.blob_id);
+ drmModeAtomicFree(pset);
+ return ret;
+ }
+ }
+
+ for (DrmCompositionPlane &comp_plane : comp_planes) {
+ DrmPlane *plane = comp_plane.plane;
+ DrmCrtc *crtc = comp_plane.crtc;
+
+ int fb_id = -1;
+ DrmHwcRect<int> display_frame;
+ DrmHwcRect<float> source_crop;
+ uint64_t rotation = 0;
+ uint64_t alpha = 0xFF;
+ switch (comp_plane.source_layer) {
+ case DrmCompositionPlane::kSourceNone:
break;
- case HWC_TRANSFORM_ROT_180:
- rotation = 1 << DRM_ROTATE_180;
+ case DrmCompositionPlane::kSourceSquash:
+ ALOGE("Actual source layer index expected for squash layer");
break;
- case HWC_TRANSFORM_ROT_270:
- rotation = 1 << DRM_ROTATE_270;
+ case DrmCompositionPlane::kSourcePreComp:
+ ALOGE("Actual source layer index expected for pre-comp layer");
break;
- case 0:
+ default: {
+ if (comp_plane.source_layer >= layers.size()) {
+ ALOGE("Source layer index %zu out of bounds %zu",
+ comp_plane.source_layer, layers.size());
+ break;
+ }
+ DrmHwcLayer &layer = layers[comp_plane.source_layer];
+ if (!test_only && layer.acquire_fence.get() >= 0) {
+ int acquire_fence = layer.acquire_fence.get();
+ int total_fence_timeout = 0;
+ for (int i = 0; i < kAcquireWaitTries; ++i) {
+ int fence_timeout = kAcquireWaitTimeoutMs * (1 << i);
+ total_fence_timeout += fence_timeout;
+ ret = sync_wait(acquire_fence, fence_timeout);
+ if (ret)
+ ALOGW("Acquire fence %d wait %d failed (%d). Total time %d",
+ acquire_fence, i, ret, total_fence_timeout);
+ }
+ if (ret) {
+ ALOGE("Failed to wait for acquire %d/%d", acquire_fence, ret);
+ break;
+ }
+ layer.acquire_fence.Close();
+ }
+ if (!layer.buffer) {
+ ALOGE("Expected a valid framebuffer for pset");
+ break;
+ }
+ fb_id = layer.buffer->fb_id;
+ display_frame = layer.display_frame;
+ source_crop = layer.source_crop;
+ if (layer.blending == DrmHwcBlending::kPreMult)
+ alpha = layer.alpha;
+
rotation = 0;
+ if (layer.transform & DrmHwcTransform::kFlipH)
+ rotation |= 1 << DRM_REFLECT_X;
+ if (layer.transform & DrmHwcTransform::kFlipV)
+ rotation |= 1 << DRM_REFLECT_Y;
+ if (layer.transform & DrmHwcTransform::kRotate90)
+ rotation |= 1 << DRM_ROTATE_90;
+ else if (layer.transform & DrmHwcTransform::kRotate180)
+ rotation |= 1 << DRM_ROTATE_180;
+ else if (layer.transform & DrmHwcTransform::kRotate270)
+ rotation |= 1 << DRM_ROTATE_270;
+ }
+ }
+
+ // Disable the plane if there's no framebuffer
+ if (fb_id < 0) {
+ ret = drmModeAtomicAddProperty(pset, plane->id(),
+ plane->crtc_property().id(), 0) < 0 ||
+ drmModeAtomicAddProperty(pset, plane->id(),
+ plane->fb_property().id(), 0) < 0;
+ if (ret) {
+ ALOGE("Failed to add plane %d disable to pset", plane->id());
break;
- default:
- ALOGE("Invalid transform value 0x%x given", layer->transform);
- ret = -EINVAL;
- break;
+ }
+ continue;
}
- if (ret)
- break;
// TODO: Once we have atomic test, this should fall back to GL
if (rotation && plane->rotation_property().id() == 0) {
break;
}
- ret =
- drmModePropertySetAdd(pset, plane->id(), plane->crtc_property().id(),
- crtc->id()) ||
- drmModePropertySetAdd(pset, plane->id(), plane->fb_property().id(),
- iter->bo.fb_id) ||
- drmModePropertySetAdd(pset, plane->id(), plane->crtc_x_property().id(),
- layer->displayFrame.left) ||
- drmModePropertySetAdd(pset, plane->id(), plane->crtc_y_property().id(),
- layer->displayFrame.top) ||
- drmModePropertySetAdd(
- pset, plane->id(), plane->crtc_w_property().id(),
- layer->displayFrame.right - layer->displayFrame.left) ||
- drmModePropertySetAdd(
- pset, plane->id(), plane->crtc_h_property().id(),
- layer->displayFrame.bottom - layer->displayFrame.top) ||
- drmModePropertySetAdd(pset, plane->id(), plane->src_x_property().id(),
- (int)(layer->sourceCropf.left) << 16) ||
- drmModePropertySetAdd(pset, plane->id(), plane->src_y_property().id(),
- (int)(layer->sourceCropf.top) << 16) ||
- drmModePropertySetAdd(
- pset, plane->id(), plane->src_w_property().id(),
- (int)(layer->sourceCropf.right - layer->sourceCropf.left) << 16) ||
- drmModePropertySetAdd(
- pset, plane->id(), plane->src_h_property().id(),
- (int)(layer->sourceCropf.bottom - layer->sourceCropf.top) << 16);
+ // TODO: Once we have atomic test, this should fall back to GL
+ if (alpha != 0xFF && plane->alpha_property().id() == 0) {
+ ALOGE("Alpha is not supported on plane %d", plane->id());
+ ret = -EINVAL;
+ break;
+ }
+
+ ret = drmModeAtomicAddProperty(pset, plane->id(),
+ plane->crtc_property().id(), crtc->id()) < 0;
+ ret |= drmModeAtomicAddProperty(pset, plane->id(),
+ plane->fb_property().id(), fb_id) < 0;
+ ret |= drmModeAtomicAddProperty(pset, plane->id(),
+ plane->crtc_x_property().id(),
+ display_frame.left) < 0;
+ ret |= drmModeAtomicAddProperty(pset, plane->id(),
+ plane->crtc_y_property().id(),
+ display_frame.top) < 0;
+ ret |= drmModeAtomicAddProperty(
+ pset, plane->id(), plane->crtc_w_property().id(),
+ display_frame.right - display_frame.left) < 0;
+ ret |= drmModeAtomicAddProperty(
+ pset, plane->id(), plane->crtc_h_property().id(),
+ display_frame.bottom - display_frame.top) < 0;
+ ret |= drmModeAtomicAddProperty(pset, plane->id(),
+ plane->src_x_property().id(),
+ (int)(source_crop.left) << 16) < 0;
+ ret |= drmModeAtomicAddProperty(pset, plane->id(),
+ plane->src_y_property().id(),
+ (int)(source_crop.top) << 16) < 0;
+ ret |= drmModeAtomicAddProperty(
+ pset, plane->id(), plane->src_w_property().id(),
+ (int)(source_crop.right - source_crop.left) << 16) < 0;
+ ret |= drmModeAtomicAddProperty(
+ pset, plane->id(), plane->src_h_property().id(),
+ (int)(source_crop.bottom - source_crop.top) << 16) < 0;
if (ret) {
ALOGE("Failed to add plane %d to set", plane->id());
break;
}
if (plane->rotation_property().id()) {
- ret = drmModePropertySetAdd(pset, plane->id(),
- plane->rotation_property().id(), rotation);
+ ret = drmModeAtomicAddProperty(pset, plane->id(),
+ plane->rotation_property().id(),
+ rotation) < 0;
if (ret) {
ALOGE("Failed to add rotation property %d to plane %d",
plane->rotation_property().id(), plane->id());
break;
}
}
+
+ if (plane->alpha_property().id()) {
+ ret = drmModeAtomicAddProperty(pset, plane->id(),
+ plane->alpha_property().id(),
+ alpha) < 0;
+ if (ret) {
+ ALOGE("Failed to add alpha property %d to plane %d",
+ plane->alpha_property().id(), plane->id());
+ break;
+ }
+ }
}
+out:
if (!ret) {
- ret = drmModePropertySetCommit(drm_->fd(), 0, drm_, pset);
- if (ret)
- ALOGE("Failed to commit pset ret=%d\n", ret);
+ uint32_t flags = DRM_MODE_ATOMIC_ALLOW_MODESET;
+ if (test_only)
+ flags |= DRM_MODE_ATOMIC_TEST_ONLY;
+
+ ret = drmModeAtomicCommit(drm_->fd(), pset, flags, drm_);
+ if (ret) {
+ if (test_only)
+ ALOGI("Commit test pset failed ret=%d\n", ret);
+ else
+ ALOGE("Failed to commit pset ret=%d\n", ret);
+ drmModeAtomicFree(pset);
+ return ret;
+ }
}
if (pset)
- drmModePropertySetFree(pset);
+ drmModeAtomicFree(pset);
+
+ if (!test_only && mode_.needs_modeset) {
+ ret = drm_->DestroyPropertyBlob(mode_.old_blob_id);
+ if (ret) {
+ ALOGE("Failed to destroy old mode property blob %lld/%d",
+ mode_.old_blob_id, ret);
+ return ret;
+ }
+
+ /* TODO: Add dpms to the pset when the kernel supports it */
+ ret = ApplyDpms(display_comp);
+ if (ret) {
+ ALOGE("Failed to apply DPMS after modeset %d\n", ret);
+ return ret;
+ }
+
+ connector->set_active_mode(mode_.mode);
+ mode_.old_blob_id = mode_.blob_id;
+ mode_.blob_id = 0;
+ mode_.needs_modeset = false;
+ }
return ret;
}
return 0;
}
+std::tuple<int, uint32_t> DrmDisplayCompositor::CreateModeBlob(
+ const DrmMode &mode) {
+ struct drm_mode_modeinfo drm_mode;
+ memset(&drm_mode, 0, sizeof(drm_mode));
+ mode.ToDrmModeModeInfo(&drm_mode);
+
+ uint32_t id = 0;
+ int ret = drm_->CreatePropertyBlob(&drm_mode,
+ sizeof(struct drm_mode_modeinfo), &id);
+ if (ret) {
+ ALOGE("Failed to create mode property blob %d", ret);
+ return std::make_tuple(ret, 0);
+ }
+ ALOGE("Create blob_id %ld\n", id);
+ return std::make_tuple(ret, id);
+}
+
+void DrmDisplayCompositor::ApplyFrame(
+ std::unique_ptr<DrmDisplayComposition> composition, int status) {
+ int ret = status;
+
+ if (!ret)
+ ret = CommitFrame(composition.get(), false);
+
+ if (ret) {
+ ALOGE("Composite failed for display %d", display_);
+
+ // Disable the hw used by the last active composition. This allows us to
+ // signal the release fences from that composition to avoid hanging.
+ if (DisablePlanes(active_composition_.get()))
+ return;
+ }
+ ++dump_frames_composited_;
+
+ if (active_composition_)
+ active_composition_->SignalCompositionDone();
+
+ ret = pthread_mutex_lock(&lock_);
+ if (ret)
+ ALOGE("Failed to acquire lock for active_composition swap");
+
+ active_composition_.swap(composition);
+
+ if (!ret)
+ ret = pthread_mutex_unlock(&lock_);
+ if (ret)
+ ALOGE("Failed to release lock for active_composition swap");
+}
+
int DrmDisplayCompositor::Composite() {
ATRACE_CALL();
std::unique_ptr<DrmDisplayComposition> composition(
std::move(composite_queue_.front()));
+
composite_queue_.pop();
ret = pthread_mutex_unlock(&lock_);
switch (composition->type()) {
case DRM_COMPOSITION_TYPE_FRAME:
- ret = ApplyFrame(composition.get());
+ ret = PrepareFrame(composition.get());
if (ret) {
- ALOGE("Composite failed for display %d", display_);
+ ALOGE("Failed to prepare frame for display %d", display_);
return ret;
}
- ++dump_frames_composited_;
+ if (composition->geometry_changed()) {
+ // Send the composition to the kernel to ensure we can commit it. This
+ // is just a test, it won't actually commit the frame. If rejected,
+ // squash the frame into one layer and use the squashed composition
+ ret = CommitFrame(composition.get(), true);
+ if (ret)
+ ALOGI("Commit test failed, squashing frame for display %d", display_);
+ use_hw_overlays_ = !ret;
+ }
+
+ // If use_hw_overlays_ is false, we can't use hardware to composite the
+ // frame. So squash all layers into a single composition and queue that
+ // instead.
+ if (!use_hw_overlays_) {
+ std::unique_ptr<DrmDisplayComposition> squashed = CreateComposition();
+ ret = SquashFrame(composition.get(), squashed.get());
+ if (!ret) {
+ composition = std::move(squashed);
+ } else {
+ ALOGE("Failed to squash frame for display %d", display_);
+ return ret;
+ }
+ }
+ frame_worker_.QueueFrame(std::move(composition), ret);
break;
case DRM_COMPOSITION_TYPE_DPMS:
ret = ApplyDpms(composition.get());
if (ret)
ALOGE("Failed to apply dpms for display %d", display_);
return ret;
+ case DRM_COMPOSITION_TYPE_MODESET:
+ mode_.mode = composition->display_mode();
+ if (mode_.blob_id)
+ drm_->DestroyPropertyBlob(mode_.blob_id);
+ std::tie(ret, mode_.blob_id) = CreateModeBlob(mode_.mode);
+ if (ret) {
+ ALOGE("Failed to create mode blob for display %d", display_);
+ return ret;
+ }
+ mode_.needs_modeset = true;
+ return 0;
default:
ALOGE("Unknown composition type %d", composition->type());
return -EINVAL;
}
- if (active_composition_)
- active_composition_->FinishComposition();
-
- ret = pthread_mutex_lock(&lock_);
- if (ret)
- ALOGE("Failed to acquire lock for active_composition swap");
-
- active_composition_.swap(composition);
-
- if (!ret)
- ret = pthread_mutex_unlock(&lock_);
- if (ret)
- ALOGE("Failed to release lock for active_composition swap");
-
return ret;
}
return empty_ret;
}
-void DrmDisplayCompositor::Dump(std::ostringstream *out) const {
- uint64_t cur_ts;
+int DrmDisplayCompositor::SquashAll() {
+ AutoLock lock(&lock_, "compositor");
+ int ret = lock.Lock();
+ if (ret)
+ return ret;
+
+ if (!active_composition_)
+ return 0;
+
+ std::unique_ptr<DrmDisplayComposition> comp = CreateComposition();
+ ret = SquashFrame(active_composition_.get(), comp.get());
+
+ // ApplyFrame needs the lock
+ lock.Unlock();
+
+ if (!ret)
+ ApplyFrame(std::move(comp), 0);
+
+ return ret;
+}
+
+// Returns:
+// - 0 if src is successfully squashed into dst
+// - -EALREADY if the src is already squashed
+// - Appropriate error if the squash fails
+int DrmDisplayCompositor::SquashFrame(DrmDisplayComposition *src,
+ DrmDisplayComposition *dst) {
+ if (src->type() != DRM_COMPOSITION_TYPE_FRAME)
+ return -ENOTSUP;
+
+ std::vector<DrmCompositionPlane> &src_planes = src->composition_planes();
+ std::vector<DrmHwcLayer> &src_layers = src->layers();
+
+ // Make sure there is more than one layer to squash.
+ size_t src_planes_with_layer = std::count_if(
+ src_planes.begin(), src_planes.end(), [](DrmCompositionPlane &p) {
+ return p.source_layer <= DrmCompositionPlane::kSourceLayerMax;
+ });
+ if (src_planes_with_layer <= 1)
+ return -EALREADY;
+
+ int pre_comp_layer_index;
+
+ int ret = dst->Init(drm_, src->crtc(), src->importer(), src->frame_no());
+ if (ret) {
+ ALOGE("Failed to init squash all composition %d", ret);
+ return ret;
+ }
+
+ std::vector<DrmPlane *> primary_planes;
+ std::vector<DrmPlane *> fake_overlay_planes;
+ std::vector<DrmHwcLayer> dst_layers;
+ for (DrmCompositionPlane &comp_plane : src_planes) {
+ // Composition planes without DRM planes should never happen
+ if (comp_plane.plane == NULL) {
+ ALOGE("Skipping squash all because of NULL plane");
+ ret = -EINVAL;
+ goto move_layers_back;
+ }
+
+ if (comp_plane.source_layer == DrmCompositionPlane::kSourceNone)
+ continue;
+
+ // Out of range layers should never happen. If they do, somebody probably
+ // forgot to replace the symbolic names (kSourceSquash, kSourcePreComp) with
+ // real ones.
+ if (comp_plane.source_layer >= src_layers.size()) {
+ ALOGE("Skipping squash all because of out of range source layer %zu",
+ comp_plane.source_layer);
+ ret = -EINVAL;
+ goto move_layers_back;
+ }
+
+ DrmHwcLayer &layer = src_layers[comp_plane.source_layer];
+
+ // Squashing protected layers is impossible.
+ if (layer.protected_usage()) {
+ ret = -ENOTSUP;
+ goto move_layers_back;
+ }
+
+ // The OutputFds point to freed memory after hwc_set returns. They are
+ // returned to the default to prevent DrmDisplayComposition::Plan from
+ // filling the OutputFds.
+ layer.release_fence = OutputFd();
+ dst_layers.emplace_back(std::move(layer));
+
+ if (comp_plane.plane->type() == DRM_PLANE_TYPE_PRIMARY &&
+ primary_planes.size() == 0)
+ primary_planes.push_back(comp_plane.plane);
+ else
+ dst->AddPlaneDisable(comp_plane.plane);
+ }
+
+ ret = dst->SetLayers(dst_layers.data(), dst_layers.size(), false);
+ if (ret) {
+ ALOGE("Failed to set layers for squash all composition %d", ret);
+ goto move_layers_back;
+ }
+ ret =
+ dst->Plan(NULL /* SquashState */, &primary_planes, &fake_overlay_planes);
+ if (ret) {
+ ALOGE("Failed to plan for squash all composition %d", ret);
+ goto move_layers_back;
+ }
+
+ ret = ApplyPreComposite(dst);
+ if (ret) {
+ ALOGE("Failed to pre-composite for squash all composition %d", ret);
+ goto move_layers_back;
+ }
+
+ pre_comp_layer_index = dst->layers().size() - 1;
+ framebuffer_index_ = (framebuffer_index_ + 1) % DRM_DISPLAY_BUFFERS;
+
+ for (DrmCompositionPlane &plane : dst->composition_planes())
+ if (plane.source_layer == DrmCompositionPlane::kSourcePreComp)
+ plane.source_layer = pre_comp_layer_index;
+
+ return 0;
+
+// TODO(zachr): think of a better way to transfer ownership back to the active
+// composition.
+move_layers_back:
+ for (size_t plane_index = 0;
+ plane_index < src_planes.size() && plane_index < dst_layers.size();
+ plane_index++) {
+ size_t source_layer_index = src_planes[plane_index].source_layer;
+ src_layers[source_layer_index] = std::move(dst_layers[plane_index]);
+ }
+
+ return ret;
+}
+
+void DrmDisplayCompositor::Dump(std::ostringstream *out) const {
int ret = pthread_mutex_lock(&lock_);
if (ret)
return;
struct timespec ts;
ret = clock_gettime(CLOCK_MONOTONIC, &ts);
-
- DrmCompositionLayerVector_t layers;
- if (active_composition_)
- layers = *active_composition_->GetCompositionLayers();
- else
- ret = -EAGAIN;
-
- ret |= pthread_mutex_unlock(&lock_);
- if (ret)
+ if (ret) {
+ pthread_mutex_unlock(&lock_);
return;
+ }
- cur_ts = ts.tv_sec * 1000 * 1000 * 1000 + ts.tv_nsec;
+ uint64_t cur_ts = ts.tv_sec * 1000 * 1000 * 1000 + ts.tv_nsec;
uint64_t num_ms = (cur_ts - dump_last_timestamp_ns_) / (1000 * 1000);
float fps = num_ms ? (num_frames * 1000.0f) / (num_ms) : 0.0f;
dump_last_timestamp_ns_ = cur_ts;
- *out << "---- DrmDisplayCompositor Layers: num=" << layers.size() << "\n";
- for (DrmCompositionLayerVector_t::iterator iter = layers.begin();
- iter != layers.end(); ++iter) {
- hwc_layer_1_t *layer = &iter->layer;
- DrmPlane *plane = iter->plane;
+ if (active_composition_)
+ active_composition_->Dump(out);
- *out << "------ DrmDisplayCompositor Layer: plane=" << plane->id() << " ";
+ squash_state_.Dump(out);
- DrmCrtc *crtc = iter->crtc;
- if (!crtc) {
- *out << "disabled\n";
- continue;
- }
-
- *out << "crtc=" << crtc->id()
- << " crtc[x/y/w/h]=" << layer->displayFrame.left << "/"
- << layer->displayFrame.top << "/"
- << layer->displayFrame.right - layer->displayFrame.left << "/"
- << layer->displayFrame.bottom - layer->displayFrame.top << " "
- << " src[x/y/w/h]=" << layer->sourceCropf.left << "/"
- << layer->sourceCropf.top << "/"
- << layer->sourceCropf.right - layer->sourceCropf.left << "/"
- << layer->sourceCropf.bottom - layer->sourceCropf.top
- << " transform=" << layer->transform << "\n";
- }
+ pthread_mutex_unlock(&lock_);
}
}
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