#define LOG_TAG "hwc-drm-display-compositor"
#include "drmdisplaycompositor.h"
-#include "drmcrtc.h"
-#include "drmplane.h"
-#include "drmresources.h"
-#include "glworker.h"
#include <pthread.h>
#include <sched.h>
-#include <sstream>
#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>
-#define DRM_DISPLAY_COMPOSITOR_MAX_QUEUE_DEPTH 3
+#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 {
last_handles_.push_back(layer->sf_handle);
}
- std::vector<seperate_rects::RectSet<uint64_t, int>> out_regions;
- seperate_rects::seperate_rects_64(in_rects, &out_regions);
+ std::vector<separate_rects::RectSet<uint64_t, int>> out_regions;
+ separate_rects::separate_rects_64(in_rects, &out_regions);
- for (const seperate_rects::RectSet<uint64_t, int> &out_region : 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;
std::bitset<kMaxLayers> changed_layers;
for (size_t i = 0; i < last_handles_.size(); i++) {
DrmHwcLayer *layer = &layers[i];
- if (last_handles_[i] != layer->sf_handle) {
+ // 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++) {
});
}
+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_worker_(this),
initialized_(false),
active_(false),
- needs_modeset_(false),
framebuffer_index_(0),
squash_framebuffer_index_(0),
dump_frames_composited_(0),
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;
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::kCoverage;
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,
return 0;
}
-int DrmDisplayCompositor::ApplyFrame(DrmDisplayComposition *display_comp) {
+int DrmDisplayCompositor::PrepareFrame(DrmDisplayComposition *display_comp) {
int ret = 0;
std::vector<DrmHwcLayer> &layers = display_comp->layers();
return ret;
}
squash_layer.sf_handle = fb.buffer()->handle;
+ squash_layer.blending = DrmHwcBlending::kCoverage;
squash_layer.source_crop = DrmHwcRect<float>(
0, 0, squash_layer.buffer->width, squash_layer.buffer->height);
squash_layer.display_frame = DrmHwcRect<int>(
framebuffer_index_ = (framebuffer_index_ + 1) % DRM_DISPLAY_BUFFERS;
}
+ 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;
+ default:
+ break;
+ }
+ }
+
+ return ret;
+}
+
+int DrmDisplayCompositor::CommitFrame(DrmDisplayComposition *display_comp) {
+ 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 -ENOMEM;
}
- uint32_t blob_id = 0;
- uint64_t old_blob_id;
- if (needs_modeset_) {
- DrmProperty old_mode;
- ret = drm_->GetCrtcProperty(*crtc, crtc->mode_property().name().c_str(),
- &old_mode);
- if (ret) {
- ALOGE("Failed to get old mode property from crtc %d", crtc->id());
- drmModePropertySetFree(pset);
- return ret;
- }
- ret = old_mode.value(&old_blob_id);
- if (ret) {
- ALOGE("Could not get old blob id value %d", ret);
- drmModePropertySetFree(pset);
- return ret;
- }
-
- struct drm_mode_modeinfo drm_mode;
- memset(&drm_mode, 0, sizeof(drm_mode));
- next_mode_.ToDrmModeModeInfo(&drm_mode);
-
- ret = drm_->CreatePropertyBlob(&drm_mode, sizeof(struct drm_mode_modeinfo),
- &blob_id);
- if (ret) {
- ALOGE("Failed to create mode property blob %d", ret);
- drmModePropertySetFree(pset);
- return ret;
- }
-
+ if (mode_.needs_modeset) {
ret = drmModePropertySetAdd(pset, crtc->id(), crtc->mode_property().id(),
- blob_id) ||
+ mode_.blob_id) ||
drmModePropertySetAdd(pset, connector->id(),
connector->crtc_id_property().id(), crtc->id());
if (ret) {
- ALOGE("Failed to add blob %d to pset", blob_id);
+ ALOGE("Failed to add blob %d to pset", mode_.blob_id);
drmModePropertySetFree(pset);
- drm_->DestroyPropertyBlob(blob_id);
return ret;
}
}
switch (comp_plane.source_layer) {
case DrmCompositionPlane::kSourceNone:
break;
- case DrmCompositionPlane::kSourceSquash: {
- DrmHwcLayer &layer = layers[squash_layer_index];
- fb_id = layer.buffer->fb_id;
- display_frame = layer.display_frame;
- source_crop = layer.source_crop;
+ case DrmCompositionPlane::kSourceSquash:
+ ALOGE("Actual source layer index expected for squash layer");
break;
- }
- case DrmCompositionPlane::kSourcePreComp: {
- if (!do_pre_comp) {
- ALOGE(
- "Can not use pre composite framebuffer with no pre composite "
- "regions");
- ret = -EINVAL;
- goto out;
- }
- DrmHwcLayer &layer = layers[pre_comp_layer_index];
- fb_id = layer.buffer->fb_id;
- display_frame = layer.display_frame;
- source_crop = layer.source_crop;
+ case DrmCompositionPlane::kSourcePreComp:
+ ALOGE("Actual source layer index expected for pre-comp layer");
break;
- }
default: {
if (comp_plane.source_layer >= layers.size()) {
ALOGE("Source layer index %zu out of bounds %zu",
if (ret) {
ALOGE("Failed to commit pset ret=%d\n", ret);
drmModePropertySetFree(pset);
- if (needs_modeset_)
- drm_->DestroyPropertyBlob(blob_id);
return ret;
}
}
if (pset)
drmModePropertySetFree(pset);
- if (needs_modeset_) {
- ret = drm_->DestroyPropertyBlob(old_blob_id);
+ if (mode_.needs_modeset) {
+ ret = drm_->DestroyPropertyBlob(mode_.old_blob_id);
if (ret) {
- ALOGE("Failed to destroy old mode property blob %lld/%d", old_blob_id,
- ret);
+ ALOGE("Failed to destroy old mode property blob %lld/%d",
+ mode_.old_blob_id, ret);
return ret;
}
return ret;
}
- connector->set_active_mode(next_mode_);
- needs_modeset_ = false;
+ 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());
+
+ 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();
switch (composition->type()) {
case DRM_COMPOSITION_TYPE_FRAME:
- ret = ApplyFrame(composition.get());
- 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 ret;
- }
- ++dump_frames_composited_;
+ ret = PrepareFrame(composition.get());
+ frame_worker_.QueueFrame(std::move(composition), ret);
break;
case DRM_COMPOSITION_TYPE_DPMS:
ret = ApplyDpms(composition.get());
ALOGE("Failed to apply dpms for display %d", display_);
return ret;
case DRM_COMPOSITION_TYPE_MODESET:
- next_mode_ = composition->display_mode();
- needs_modeset_ = true;
+ 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_->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");
-
return ret;
}
return empty_ret;
}
+int DrmDisplayCompositor::SquashAll() {
+ AutoLock lock(&lock_, "compositor");
+ int ret = lock.Lock();
+ if (ret)
+ return ret;
+
+ if (!active_composition_)
+ return 0;
+
+ if (active_composition_->type() != DRM_COMPOSITION_TYPE_FRAME)
+ return 0;
+
+ DrmDisplayComposition &active_comp = *active_composition_;
+ std::vector<DrmCompositionPlane> &active_planes =
+ active_comp.composition_planes();
+ std::vector<DrmHwcLayer> &active_layers = active_comp.layers();
+
+ // Make sure there is more than one layer to squash.
+ size_t active_planes_with_layer = std::count_if(
+ active_planes.begin(), active_planes.end(), [](DrmCompositionPlane &p) {
+ return p.source_layer <= DrmCompositionPlane::kSourceLayerMax;
+ });
+ if (active_planes_with_layer <= 1)
+ return 0;
+
+ int pre_comp_layer_index;
+
+ std::unique_ptr<DrmDisplayComposition> comp = CreateComposition();
+ ret = comp->Init(drm_, active_comp.crtc(), active_comp.importer(),
+ active_comp.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> comp_layers;
+ for (DrmCompositionPlane &comp_plane : active_planes) {
+ // Composition planes without DRM planes should never happen
+ if (comp_plane.plane == NULL) {
+ ALOGE("Skipping squash all because of NULL plane");
+ 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 >= active_layers.size()) {
+ ALOGE("Skipping squash all because of out of range source layer %zu",
+ comp_plane.source_layer);
+ goto move_layers_back;
+ }
+
+ DrmHwcLayer &layer = active_layers[comp_plane.source_layer];
+
+ // Squashing protected layers is impossible.
+ if (layer.protected_usage())
+ 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();
+ comp_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
+ comp->AddPlaneDisable(comp_plane.plane);
+ }
+
+ ret = comp->SetLayers(comp_layers.data(), comp_layers.size(), false);
+ if (ret) {
+ ALOGE("Failed to set layers for squash all composition %d", ret);
+ goto move_layers_back;
+ }
+
+ ret =
+ comp->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(comp.get());
+ if (ret) {
+ ALOGE("Failed to pre-composite for squash all composition %d", ret);
+ goto move_layers_back;
+ }
+
+ pre_comp_layer_index = comp->layers().size() - 1;
+ framebuffer_index_ = (framebuffer_index_ + 1) % DRM_DISPLAY_BUFFERS;
+
+ for (DrmCompositionPlane &plane : comp->composition_planes())
+ if (plane.source_layer == DrmCompositionPlane::kSourcePreComp)
+ plane.source_layer = pre_comp_layer_index;
+
+ // ApplyFrame needs the lock
+ lock.Unlock();
+
+ ApplyFrame(std::move(comp), 0);
+
+ 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 < active_planes.size() && plane_index < comp_layers.size();
+ plane_index++) {
+ size_t source_layer_index = active_planes[plane_index].source_layer;
+ active_layers[source_layer_index] = std::move(comp_layers[plane_index]);
+ }
+
+ return ret;
+}
+
void DrmDisplayCompositor::Dump(std::ostringstream *out) const {
int ret = pthread_mutex_lock(&lock_);
if (ret)
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