| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #define ATRACE_TAG ATRACE_TAG_GRAPHICS |
| #define LOG_TAG "hwc-drm-display-compositor" |
| |
| #include "drmdisplaycompositor.h" |
| |
| #include <pthread.h> |
| #include <sched.h> |
| #include <stdlib.h> |
| #include <time.h> |
| #include <sstream> |
| #include <vector> |
| |
| #include <log/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" |
| |
| namespace android { |
| |
| DrmDisplayCompositor::DrmDisplayCompositor() |
| : drm_(NULL), |
| display_(-1), |
| initialized_(false), |
| active_(false), |
| use_hw_overlays_(true), |
| dump_frames_composited_(0), |
| dump_last_timestamp_ns_(0) { |
| struct timespec ts; |
| if (clock_gettime(CLOCK_MONOTONIC, &ts)) |
| return; |
| dump_last_timestamp_ns_ = ts.tv_sec * 1000 * 1000 * 1000 + ts.tv_nsec; |
| } |
| |
| DrmDisplayCompositor::~DrmDisplayCompositor() { |
| if (!initialized_) |
| return; |
| |
| 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); |
| |
| active_composition_.reset(); |
| |
| ret = pthread_mutex_unlock(&lock_); |
| if (ret) |
| ALOGE("Failed to acquire compositor lock %d", ret); |
| |
| pthread_mutex_destroy(&lock_); |
| } |
| |
| int DrmDisplayCompositor::Init(DrmResources *drm, int display) { |
| drm_ = drm; |
| display_ = display; |
| |
| int ret = pthread_mutex_init(&lock_, NULL); |
| if (ret) { |
| ALOGE("Failed to initialize drm compositor lock %d\n", ret); |
| return ret; |
| } |
| |
| initialized_ = true; |
| return 0; |
| } |
| |
| std::unique_ptr<DrmDisplayComposition> DrmDisplayCompositor::CreateComposition() |
| const { |
| return std::unique_ptr<DrmDisplayComposition>(new DrmDisplayComposition()); |
| } |
| |
| 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 std::make_tuple(0, 0, -ENODEV); |
| } |
| |
| const DrmMode &mode = connector->active_mode(); |
| return std::make_tuple(mode.h_display(), mode.v_display(), 0); |
| } |
| |
| int DrmDisplayCompositor::DisablePlanes(DrmDisplayComposition *display_comp) { |
| drmModeAtomicReqPtr pset = drmModeAtomicAlloc(); |
| if (!pset) { |
| ALOGE("Failed to allocate property set"); |
| return -ENOMEM; |
| } |
| |
| 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; |
| } |
| } |
| |
| 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::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(); |
| uint64_t out_fences[drm_->crtcs().size()]; |
| |
| 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 (crtc->out_fence_ptr_property().id() != 0) { |
| ret = drmModeAtomicAddProperty(pset, crtc->id(), crtc->out_fence_ptr_property().id(), |
| (uint64_t) &out_fences[crtc->pipe()]); |
| if (ret < 0) { |
| ALOGE("Failed to add OUT_FENCE_PTR property to pset: %d", ret); |
| drmModeAtomicFree(pset); |
| return ret; |
| } |
| } |
| |
| if (mode_.needs_modeset) { |
| ret = drmModeAtomicAddProperty(pset, crtc->id(), crtc->active_property().id(), 1); |
| if (ret < 0) { |
| ALOGE("Failed to add crtc active to pset\n"); |
| drmModeAtomicFree(pset); |
| return ret; |
| } |
| |
| 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(); |
| std::vector<size_t> &source_layers = comp_plane.source_layers(); |
| |
| int fb_id = -1; |
| int fence_fd = -1; |
| DrmHwcRect<int> display_frame; |
| DrmHwcRect<float> source_crop; |
| uint64_t rotation = 0; |
| uint64_t alpha = 0xFFFF; |
| |
| if (comp_plane.type() != DrmCompositionPlane::Type::kDisable) { |
| if (source_layers.size() > 1) { |
| ALOGE("Can't handle more than one source layer sz=%zu type=%d", |
| source_layers.size(), comp_plane.type()); |
| continue; |
| } |
| |
| if (source_layers.empty() || source_layers.front() >= layers.size()) { |
| ALOGE("Source layer index %zu out of bounds %zu type=%d", |
| source_layers.front(), layers.size(), comp_plane.type()); |
| break; |
| } |
| DrmHwcLayer &layer = layers[source_layers.front()]; |
| if (!layer.buffer) { |
| ALOGE("Expected a valid framebuffer for pset"); |
| break; |
| } |
| fb_id = layer.buffer->fb_id; |
| fence_fd = layer.acquire_fence.get(); |
| 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 |= DRM_MODE_REFLECT_X; |
| if (layer.transform & DrmHwcTransform::kFlipV) |
| rotation |= DRM_MODE_REFLECT_Y; |
| if (layer.transform & DrmHwcTransform::kRotate90) |
| rotation |= DRM_MODE_ROTATE_90; |
| else if (layer.transform & DrmHwcTransform::kRotate180) |
| rotation |= DRM_MODE_ROTATE_180; |
| else if (layer.transform & DrmHwcTransform::kRotate270) |
| rotation |= DRM_MODE_ROTATE_270; |
| else |
| rotation |= DRM_MODE_ROTATE_0; |
| |
| if (fence_fd >= 0) { |
| int prop_id = plane->in_fence_fd_property().id(); |
| if (prop_id == 0) { |
| ALOGE("Failed to get IN_FENCE_FD property id"); |
| break; |
| } |
| ret = drmModeAtomicAddProperty(pset, plane->id(), prop_id, fence_fd); |
| if (ret < 0) { |
| ALOGE("Failed to add IN_FENCE_FD property to pset: %d", ret); |
| break; |
| } |
| } |
| } |
| |
| // 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; |
| } |
| continue; |
| } |
| |
| // TODO: Once we have atomic test, this should fall back to GL |
| if (rotation != DRM_MODE_ROTATE_0 && plane->rotation_property().id() == 0) { |
| ALOGE("Rotation is not supported on plane %d", plane->id()); |
| ret = -EINVAL; |
| break; |
| } |
| |
| // TODO: Once we have atomic test, this should fall back to GL |
| if (alpha != 0xFFFF && 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 = 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; |
| } |
| } |
| } |
| |
| if (!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) |
| 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 %" PRIu32 "/%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; |
| } |
| |
| if (crtc->out_fence_ptr_property().id()) { |
| display_comp->set_out_fence((int) out_fences[crtc->pipe()]); |
| } |
| |
| return ret; |
| } |
| |
| int DrmDisplayCompositor::ApplyDpms(DrmDisplayComposition *display_comp) { |
| DrmConnector *conn = drm_->GetConnectorForDisplay(display_); |
| if (!conn) { |
| ALOGE("Failed to get DrmConnector for display %d", display_); |
| return -ENODEV; |
| } |
| |
| const DrmProperty &prop = conn->dpms_property(); |
| int ret = drmModeConnectorSetProperty(drm_->fd(), conn->id(), prop.id(), |
| display_comp->dpms_mode()); |
| if (ret) { |
| ALOGE("Failed to set DPMS property for connector %d", conn->id()); |
| 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 %" PRIu32 "\n", id); |
| return std::make_tuple(ret, id); |
| } |
| |
| void DrmDisplayCompositor::ClearDisplay() { |
| AutoLock lock(&lock_, "compositor"); |
| int ret = lock.Lock(); |
| if (ret) |
| return; |
| |
| if (!active_composition_) |
| return; |
| |
| if (DisablePlanes(active_composition_.get())) |
| return; |
| |
| active_composition_.reset(NULL); |
| } |
| |
| 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. |
| ClearDisplay(); |
| return; |
| } |
| ++dump_frames_composited_; |
| |
| 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::ApplyComposition( |
| std::unique_ptr<DrmDisplayComposition> composition) { |
| int ret = 0; |
| switch (composition->type()) { |
| case DRM_COMPOSITION_TYPE_FRAME: |
| 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. |
| ret = CommitFrame(composition.get(), true); |
| if (ret) { |
| ALOGE("Commit test failed for display %d, FIXME", display_); |
| return ret; |
| } |
| } |
| |
| ApplyFrame(std::move(composition), ret); |
| break; |
| case DRM_COMPOSITION_TYPE_DPMS: |
| active_ = (composition->dpms_mode() == DRM_MODE_DPMS_ON); |
| 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; |
| } |
| |
| return ret; |
| } |
| |
| void DrmDisplayCompositor::Dump(std::ostringstream *out) const { |
| int ret = pthread_mutex_lock(&lock_); |
| if (ret) |
| return; |
| |
| uint64_t num_frames = dump_frames_composited_; |
| dump_frames_composited_ = 0; |
| |
| struct timespec ts; |
| ret = clock_gettime(CLOCK_MONOTONIC, &ts); |
| if (ret) { |
| pthread_mutex_unlock(&lock_); |
| return; |
| } |
| |
| 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; |
| |
| *out << "--DrmDisplayCompositor[" << display_ |
| << "]: num_frames=" << num_frames << " num_ms=" << num_ms |
| << " fps=" << fps << "\n"; |
| |
| dump_last_timestamp_ns_ = cur_ts; |
| |
| pthread_mutex_unlock(&lock_); |
| } |
| } |