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-rw-r--r--libs/hwc2on1adapter/HWC2On1Adapter.cpp2588
1 files changed, 2588 insertions, 0 deletions
diff --git a/libs/hwc2on1adapter/HWC2On1Adapter.cpp b/libs/hwc2on1adapter/HWC2On1Adapter.cpp
new file mode 100644
index 0000000000..5ad05c7542
--- /dev/null
+++ b/libs/hwc2on1adapter/HWC2On1Adapter.cpp
@@ -0,0 +1,2588 @@
+/*
+ * Copyright 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.
+ */
+
+#include "hwc2on1adapter/HWC2On1Adapter.h"
+
+//#define LOG_NDEBUG 0
+
+#undef LOG_TAG
+#define LOG_TAG "HWC2On1Adapter"
+#define ATRACE_TAG ATRACE_TAG_GRAPHICS
+
+
+#include <inttypes.h>
+
+#include <chrono>
+#include <cstdlib>
+#include <sstream>
+
+#include <hardware/hwcomposer.h>
+#include <log/log.h>
+#include <utils/Trace.h>
+
+using namespace std::chrono_literals;
+
+static uint8_t getMinorVersion(struct hwc_composer_device_1* device)
+{
+ auto version = device->common.version & HARDWARE_API_VERSION_2_MAJ_MIN_MASK;
+ return (version >> 16) & 0xF;
+}
+
+template <typename PFN, typename T>
+static hwc2_function_pointer_t asFP(T function)
+{
+ static_assert(std::is_same<PFN, T>::value, "Incompatible function pointer");
+ return reinterpret_cast<hwc2_function_pointer_t>(function);
+}
+
+using namespace HWC2;
+
+static constexpr Attribute ColorMode = static_cast<Attribute>(6);
+
+namespace android {
+
+class HWC2On1Adapter::Callbacks : public hwc_procs_t {
+ public:
+ explicit Callbacks(HWC2On1Adapter& adapter) : mAdapter(adapter) {
+ invalidate = &invalidateHook;
+ vsync = &vsyncHook;
+ hotplug = &hotplugHook;
+ }
+
+ static void invalidateHook(const hwc_procs_t* procs) {
+ auto callbacks = static_cast<const Callbacks*>(procs);
+ callbacks->mAdapter.hwc1Invalidate();
+ }
+
+ static void vsyncHook(const hwc_procs_t* procs, int display,
+ int64_t timestamp) {
+ auto callbacks = static_cast<const Callbacks*>(procs);
+ callbacks->mAdapter.hwc1Vsync(display, timestamp);
+ }
+
+ static void hotplugHook(const hwc_procs_t* procs, int display,
+ int connected) {
+ auto callbacks = static_cast<const Callbacks*>(procs);
+ callbacks->mAdapter.hwc1Hotplug(display, connected);
+ }
+
+ private:
+ HWC2On1Adapter& mAdapter;
+};
+
+static int closeHook(hw_device_t* /*device*/)
+{
+ // Do nothing, since the real work is done in the class destructor, but we
+ // need to provide a valid function pointer for hwc2_close to call
+ return 0;
+}
+
+HWC2On1Adapter::HWC2On1Adapter(hwc_composer_device_1_t* hwc1Device)
+ : mDumpString(),
+ mHwc1Device(hwc1Device),
+ mHwc1MinorVersion(getMinorVersion(hwc1Device)),
+ mHwc1SupportsVirtualDisplays(false),
+ mHwc1SupportsBackgroundColor(false),
+ mHwc1Callbacks(std::make_unique<Callbacks>(*this)),
+ mCapabilities(),
+ mLayers(),
+ mHwc1VirtualDisplay(),
+ mStateMutex(),
+ mCallbacks(),
+ mHasPendingInvalidate(false),
+ mPendingVsyncs(),
+ mPendingHotplugs(),
+ mDisplays(),
+ mHwc1DisplayMap()
+{
+ common.close = closeHook;
+ getCapabilities = getCapabilitiesHook;
+ getFunction = getFunctionHook;
+ populateCapabilities();
+ populatePrimary();
+ mHwc1Device->registerProcs(mHwc1Device,
+ static_cast<const hwc_procs_t*>(mHwc1Callbacks.get()));
+}
+
+HWC2On1Adapter::~HWC2On1Adapter() {
+ hwc_close_1(mHwc1Device);
+}
+
+void HWC2On1Adapter::doGetCapabilities(uint32_t* outCount,
+ int32_t* outCapabilities) {
+ if (outCapabilities == nullptr) {
+ *outCount = mCapabilities.size();
+ return;
+ }
+
+ auto capabilityIter = mCapabilities.cbegin();
+ for (size_t written = 0; written < *outCount; ++written) {
+ if (capabilityIter == mCapabilities.cend()) {
+ return;
+ }
+ outCapabilities[written] = static_cast<int32_t>(*capabilityIter);
+ ++capabilityIter;
+ }
+}
+
+hwc2_function_pointer_t HWC2On1Adapter::doGetFunction(
+ FunctionDescriptor descriptor) {
+ switch (descriptor) {
+ // Device functions
+ case FunctionDescriptor::CreateVirtualDisplay:
+ return asFP<HWC2_PFN_CREATE_VIRTUAL_DISPLAY>(
+ createVirtualDisplayHook);
+ case FunctionDescriptor::DestroyVirtualDisplay:
+ return asFP<HWC2_PFN_DESTROY_VIRTUAL_DISPLAY>(
+ destroyVirtualDisplayHook);
+ case FunctionDescriptor::Dump:
+ return asFP<HWC2_PFN_DUMP>(dumpHook);
+ case FunctionDescriptor::GetMaxVirtualDisplayCount:
+ return asFP<HWC2_PFN_GET_MAX_VIRTUAL_DISPLAY_COUNT>(
+ getMaxVirtualDisplayCountHook);
+ case FunctionDescriptor::RegisterCallback:
+ return asFP<HWC2_PFN_REGISTER_CALLBACK>(registerCallbackHook);
+
+ // Display functions
+ case FunctionDescriptor::AcceptDisplayChanges:
+ return asFP<HWC2_PFN_ACCEPT_DISPLAY_CHANGES>(
+ displayHook<decltype(&Display::acceptChanges),
+ &Display::acceptChanges>);
+ case FunctionDescriptor::CreateLayer:
+ return asFP<HWC2_PFN_CREATE_LAYER>(
+ displayHook<decltype(&Display::createLayer),
+ &Display::createLayer, hwc2_layer_t*>);
+ case FunctionDescriptor::DestroyLayer:
+ return asFP<HWC2_PFN_DESTROY_LAYER>(
+ displayHook<decltype(&Display::destroyLayer),
+ &Display::destroyLayer, hwc2_layer_t>);
+ case FunctionDescriptor::GetActiveConfig:
+ return asFP<HWC2_PFN_GET_ACTIVE_CONFIG>(
+ displayHook<decltype(&Display::getActiveConfig),
+ &Display::getActiveConfig, hwc2_config_t*>);
+ case FunctionDescriptor::GetChangedCompositionTypes:
+ return asFP<HWC2_PFN_GET_CHANGED_COMPOSITION_TYPES>(
+ displayHook<decltype(&Display::getChangedCompositionTypes),
+ &Display::getChangedCompositionTypes, uint32_t*,
+ hwc2_layer_t*, int32_t*>);
+ case FunctionDescriptor::GetColorModes:
+ return asFP<HWC2_PFN_GET_COLOR_MODES>(
+ displayHook<decltype(&Display::getColorModes),
+ &Display::getColorModes, uint32_t*, int32_t*>);
+ case FunctionDescriptor::GetDisplayAttribute:
+ return asFP<HWC2_PFN_GET_DISPLAY_ATTRIBUTE>(
+ getDisplayAttributeHook);
+ case FunctionDescriptor::GetDisplayConfigs:
+ return asFP<HWC2_PFN_GET_DISPLAY_CONFIGS>(
+ displayHook<decltype(&Display::getConfigs),
+ &Display::getConfigs, uint32_t*, hwc2_config_t*>);
+ case FunctionDescriptor::GetDisplayName:
+ return asFP<HWC2_PFN_GET_DISPLAY_NAME>(
+ displayHook<decltype(&Display::getName),
+ &Display::getName, uint32_t*, char*>);
+ case FunctionDescriptor::GetDisplayRequests:
+ return asFP<HWC2_PFN_GET_DISPLAY_REQUESTS>(
+ displayHook<decltype(&Display::getRequests),
+ &Display::getRequests, int32_t*, uint32_t*, hwc2_layer_t*,
+ int32_t*>);
+ case FunctionDescriptor::GetDisplayType:
+ return asFP<HWC2_PFN_GET_DISPLAY_TYPE>(
+ displayHook<decltype(&Display::getType),
+ &Display::getType, int32_t*>);
+ case FunctionDescriptor::GetDozeSupport:
+ return asFP<HWC2_PFN_GET_DOZE_SUPPORT>(
+ displayHook<decltype(&Display::getDozeSupport),
+ &Display::getDozeSupport, int32_t*>);
+ case FunctionDescriptor::GetHdrCapabilities:
+ return asFP<HWC2_PFN_GET_HDR_CAPABILITIES>(
+ displayHook<decltype(&Display::getHdrCapabilities),
+ &Display::getHdrCapabilities, uint32_t*, int32_t*, float*,
+ float*, float*>);
+ case FunctionDescriptor::GetReleaseFences:
+ return asFP<HWC2_PFN_GET_RELEASE_FENCES>(
+ displayHook<decltype(&Display::getReleaseFences),
+ &Display::getReleaseFences, uint32_t*, hwc2_layer_t*,
+ int32_t*>);
+ case FunctionDescriptor::PresentDisplay:
+ return asFP<HWC2_PFN_PRESENT_DISPLAY>(
+ displayHook<decltype(&Display::present),
+ &Display::present, int32_t*>);
+ case FunctionDescriptor::SetActiveConfig:
+ return asFP<HWC2_PFN_SET_ACTIVE_CONFIG>(
+ displayHook<decltype(&Display::setActiveConfig),
+ &Display::setActiveConfig, hwc2_config_t>);
+ case FunctionDescriptor::SetClientTarget:
+ return asFP<HWC2_PFN_SET_CLIENT_TARGET>(
+ displayHook<decltype(&Display::setClientTarget),
+ &Display::setClientTarget, buffer_handle_t, int32_t,
+ int32_t, hwc_region_t>);
+ case FunctionDescriptor::SetColorMode:
+ return asFP<HWC2_PFN_SET_COLOR_MODE>(setColorModeHook);
+ case FunctionDescriptor::SetColorTransform:
+ return asFP<HWC2_PFN_SET_COLOR_TRANSFORM>(setColorTransformHook);
+ case FunctionDescriptor::SetOutputBuffer:
+ return asFP<HWC2_PFN_SET_OUTPUT_BUFFER>(
+ displayHook<decltype(&Display::setOutputBuffer),
+ &Display::setOutputBuffer, buffer_handle_t, int32_t>);
+ case FunctionDescriptor::SetPowerMode:
+ return asFP<HWC2_PFN_SET_POWER_MODE>(setPowerModeHook);
+ case FunctionDescriptor::SetVsyncEnabled:
+ return asFP<HWC2_PFN_SET_VSYNC_ENABLED>(setVsyncEnabledHook);
+ case FunctionDescriptor::ValidateDisplay:
+ return asFP<HWC2_PFN_VALIDATE_DISPLAY>(
+ displayHook<decltype(&Display::validate),
+ &Display::validate, uint32_t*, uint32_t*>);
+
+ // Layer functions
+ case FunctionDescriptor::SetCursorPosition:
+ return asFP<HWC2_PFN_SET_CURSOR_POSITION>(
+ layerHook<decltype(&Layer::setCursorPosition),
+ &Layer::setCursorPosition, int32_t, int32_t>);
+ case FunctionDescriptor::SetLayerBuffer:
+ return asFP<HWC2_PFN_SET_LAYER_BUFFER>(
+ layerHook<decltype(&Layer::setBuffer), &Layer::setBuffer,
+ buffer_handle_t, int32_t>);
+ case FunctionDescriptor::SetLayerSurfaceDamage:
+ return asFP<HWC2_PFN_SET_LAYER_SURFACE_DAMAGE>(
+ layerHook<decltype(&Layer::setSurfaceDamage),
+ &Layer::setSurfaceDamage, hwc_region_t>);
+
+ // Layer state functions
+ case FunctionDescriptor::SetLayerBlendMode:
+ return asFP<HWC2_PFN_SET_LAYER_BLEND_MODE>(
+ setLayerBlendModeHook);
+ case FunctionDescriptor::SetLayerColor:
+ return asFP<HWC2_PFN_SET_LAYER_COLOR>(
+ layerHook<decltype(&Layer::setColor), &Layer::setColor,
+ hwc_color_t>);
+ case FunctionDescriptor::SetLayerCompositionType:
+ return asFP<HWC2_PFN_SET_LAYER_COMPOSITION_TYPE>(
+ setLayerCompositionTypeHook);
+ case FunctionDescriptor::SetLayerDataspace:
+ return asFP<HWC2_PFN_SET_LAYER_DATASPACE>(setLayerDataspaceHook);
+ case FunctionDescriptor::SetLayerDisplayFrame:
+ return asFP<HWC2_PFN_SET_LAYER_DISPLAY_FRAME>(
+ layerHook<decltype(&Layer::setDisplayFrame),
+ &Layer::setDisplayFrame, hwc_rect_t>);
+ case FunctionDescriptor::SetLayerPlaneAlpha:
+ return asFP<HWC2_PFN_SET_LAYER_PLANE_ALPHA>(
+ layerHook<decltype(&Layer::setPlaneAlpha),
+ &Layer::setPlaneAlpha, float>);
+ case FunctionDescriptor::SetLayerSidebandStream:
+ return asFP<HWC2_PFN_SET_LAYER_SIDEBAND_STREAM>(
+ layerHook<decltype(&Layer::setSidebandStream),
+ &Layer::setSidebandStream, const native_handle_t*>);
+ case FunctionDescriptor::SetLayerSourceCrop:
+ return asFP<HWC2_PFN_SET_LAYER_SOURCE_CROP>(
+ layerHook<decltype(&Layer::setSourceCrop),
+ &Layer::setSourceCrop, hwc_frect_t>);
+ case FunctionDescriptor::SetLayerTransform:
+ return asFP<HWC2_PFN_SET_LAYER_TRANSFORM>(setLayerTransformHook);
+ case FunctionDescriptor::SetLayerVisibleRegion:
+ return asFP<HWC2_PFN_SET_LAYER_VISIBLE_REGION>(
+ layerHook<decltype(&Layer::setVisibleRegion),
+ &Layer::setVisibleRegion, hwc_region_t>);
+ case FunctionDescriptor::SetLayerZOrder:
+ return asFP<HWC2_PFN_SET_LAYER_Z_ORDER>(setLayerZOrderHook);
+
+ default:
+ ALOGE("doGetFunction: Unknown function descriptor: %d (%s)",
+ static_cast<int32_t>(descriptor),
+ to_string(descriptor).c_str());
+ return nullptr;
+ }
+}
+
+// Device functions
+
+Error HWC2On1Adapter::createVirtualDisplay(uint32_t width,
+ uint32_t height, hwc2_display_t* outDisplay) {
+ std::unique_lock<std::recursive_timed_mutex> lock(mStateMutex);
+
+ if (mHwc1VirtualDisplay) {
+ // We have already allocated our only HWC1 virtual display
+ ALOGE("createVirtualDisplay: HWC1 virtual display already allocated");
+ return Error::NoResources;
+ }
+
+ mHwc1VirtualDisplay = std::make_shared<HWC2On1Adapter::Display>(*this,
+ HWC2::DisplayType::Virtual);
+ mHwc1VirtualDisplay->populateConfigs(width, height);
+ const auto displayId = mHwc1VirtualDisplay->getId();
+ mHwc1DisplayMap[HWC_DISPLAY_VIRTUAL] = displayId;
+ mHwc1VirtualDisplay->setHwc1Id(HWC_DISPLAY_VIRTUAL);
+ mDisplays.emplace(displayId, mHwc1VirtualDisplay);
+ *outDisplay = displayId;
+
+ return Error::None;
+}
+
+Error HWC2On1Adapter::destroyVirtualDisplay(hwc2_display_t displayId) {
+ std::unique_lock<std::recursive_timed_mutex> lock(mStateMutex);
+
+ if (!mHwc1VirtualDisplay || (mHwc1VirtualDisplay->getId() != displayId)) {
+ return Error::BadDisplay;
+ }
+
+ mHwc1VirtualDisplay.reset();
+ mHwc1DisplayMap.erase(HWC_DISPLAY_VIRTUAL);
+ mDisplays.erase(displayId);
+
+ return Error::None;
+}
+
+void HWC2On1Adapter::dump(uint32_t* outSize, char* outBuffer) {
+ if (outBuffer != nullptr) {
+ auto copiedBytes = mDumpString.copy(outBuffer, *outSize);
+ *outSize = static_cast<uint32_t>(copiedBytes);
+ return;
+ }
+
+ std::stringstream output;
+
+ output << "-- HWC2On1Adapter --\n";
+
+ output << "Adapting to a HWC 1." << static_cast<int>(mHwc1MinorVersion) <<
+ " device\n";
+
+ // Attempt to acquire the lock for 1 second, but proceed without the lock
+ // after that, so we can still get some information if we're deadlocked
+ std::unique_lock<std::recursive_timed_mutex> lock(mStateMutex,
+ std::defer_lock);
+ lock.try_lock_for(1s);
+
+ if (mCapabilities.empty()) {
+ output << "Capabilities: None\n";
+ } else {
+ output << "Capabilities:\n";
+ for (auto capability : mCapabilities) {
+ output << " " << to_string(capability) << '\n';
+ }
+ }
+
+ output << "Displays:\n";
+ for (const auto& element : mDisplays) {
+ const auto& display = element.second;
+ output << display->dump();
+ }
+ output << '\n';
+
+ // Release the lock before calling into HWC1, and since we no longer require
+ // mutual exclusion to access mCapabilities or mDisplays
+ lock.unlock();
+
+ if (mHwc1Device->dump) {
+ output << "HWC1 dump:\n";
+ std::vector<char> hwc1Dump(4096);
+ // Call with size - 1 to preserve a null character at the end
+ mHwc1Device->dump(mHwc1Device, hwc1Dump.data(),
+ static_cast<int>(hwc1Dump.size() - 1));
+ output << hwc1Dump.data();
+ }
+
+ mDumpString = output.str();
+ *outSize = static_cast<uint32_t>(mDumpString.size());
+}
+
+uint32_t HWC2On1Adapter::getMaxVirtualDisplayCount() {
+ return mHwc1SupportsVirtualDisplays ? 1 : 0;
+}
+
+static bool isValid(Callback descriptor) {
+ switch (descriptor) {
+ case Callback::Hotplug: // Fall-through
+ case Callback::Refresh: // Fall-through
+ case Callback::Vsync: return true;
+ default: return false;
+ }
+}
+
+Error HWC2On1Adapter::registerCallback(Callback descriptor,
+ hwc2_callback_data_t callbackData, hwc2_function_pointer_t pointer) {
+ if (!isValid(descriptor)) {
+ return Error::BadParameter;
+ }
+
+ ALOGV("registerCallback(%s, %p, %p)", to_string(descriptor).c_str(),
+ callbackData, pointer);
+
+ std::unique_lock<std::recursive_timed_mutex> lock(mStateMutex);
+
+ mCallbacks[descriptor] = {callbackData, pointer};
+
+ bool hasPendingInvalidate = false;
+ std::vector<hwc2_display_t> displayIds;
+ std::vector<std::pair<hwc2_display_t, int64_t>> pendingVsyncs;
+ std::vector<std::pair<hwc2_display_t, int>> pendingHotplugs;
+
+ if (descriptor == Callback::Refresh) {
+ hasPendingInvalidate = mHasPendingInvalidate;
+ if (hasPendingInvalidate) {
+ for (auto& displayPair : mDisplays) {
+ displayIds.emplace_back(displayPair.first);
+ }
+ }
+ mHasPendingInvalidate = false;
+ } else if (descriptor == Callback::Vsync) {
+ for (auto pending : mPendingVsyncs) {
+ auto hwc1DisplayId = pending.first;
+ if (mHwc1DisplayMap.count(hwc1DisplayId) == 0) {
+ ALOGE("hwc1Vsync: Couldn't find display for HWC1 id %d",
+ hwc1DisplayId);
+ continue;
+ }
+ auto displayId = mHwc1DisplayMap[hwc1DisplayId];
+ auto timestamp = pending.second;
+ pendingVsyncs.emplace_back(displayId, timestamp);
+ }
+ mPendingVsyncs.clear();
+ } else if (descriptor == Callback::Hotplug) {
+ // Hotplug the primary display
+ pendingHotplugs.emplace_back(mHwc1DisplayMap[HWC_DISPLAY_PRIMARY],
+ static_cast<int32_t>(Connection::Connected));
+
+ for (auto pending : mPendingHotplugs) {
+ auto hwc1DisplayId = pending.first;
+ if (mHwc1DisplayMap.count(hwc1DisplayId) == 0) {
+ ALOGE("hwc1Hotplug: Couldn't find display for HWC1 id %d",
+ hwc1DisplayId);
+ continue;
+ }
+ auto displayId = mHwc1DisplayMap[hwc1DisplayId];
+ auto connected = pending.second;
+ pendingHotplugs.emplace_back(displayId, connected);
+ }
+ }
+
+ // Call pending callbacks without the state lock held
+ lock.unlock();
+
+ if (hasPendingInvalidate) {
+ auto refresh = reinterpret_cast<HWC2_PFN_REFRESH>(pointer);
+ for (auto displayId : displayIds) {
+ refresh(callbackData, displayId);
+ }
+ }
+ if (!pendingVsyncs.empty()) {
+ auto vsync = reinterpret_cast<HWC2_PFN_VSYNC>(pointer);
+ for (auto& pendingVsync : pendingVsyncs) {
+ vsync(callbackData, pendingVsync.first, pendingVsync.second);
+ }
+ }
+ if (!pendingHotplugs.empty()) {
+ auto hotplug = reinterpret_cast<HWC2_PFN_HOTPLUG>(pointer);
+ for (auto& pendingHotplug : pendingHotplugs) {
+ hotplug(callbackData, pendingHotplug.first, pendingHotplug.second);
+ }
+ }
+ return Error::None;
+}
+
+// Display functions
+
+std::atomic<hwc2_display_t> HWC2On1Adapter::Display::sNextId(1);
+
+HWC2On1Adapter::Display::Display(HWC2On1Adapter& device, HWC2::DisplayType type)
+ : mId(sNextId++),
+ mDevice(device),
+ mStateMutex(),
+ mHwc1RequestedContents(nullptr),
+ mRetireFence(),
+ mChanges(),
+ mHwc1Id(-1),
+ mConfigs(),
+ mActiveConfig(nullptr),
+ mActiveColorMode(static_cast<android_color_mode_t>(-1)),
+ mName(),
+ mType(type),
+ mPowerMode(PowerMode::Off),
+ mVsyncEnabled(Vsync::Invalid),
+ mClientTarget(),
+ mOutputBuffer(),
+ mHasColorTransform(false),
+ mLayers(),
+ mHwc1LayerMap(),
+ mNumAvailableRects(0),
+ mNextAvailableRect(nullptr),
+ mGeometryChanged(false)
+ {}
+
+Error HWC2On1Adapter::Display::acceptChanges() {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ if (!mChanges) {
+ ALOGV("[%" PRIu64 "] acceptChanges failed, not validated", mId);
+ return Error::NotValidated;
+ }
+
+ ALOGV("[%" PRIu64 "] acceptChanges", mId);
+
+ for (auto& change : mChanges->getTypeChanges()) {
+ auto layerId = change.first;
+ auto type = change.second;
+ auto layer = mDevice.mLayers[layerId];
+ layer->setCompositionType(type);
+ }
+
+ mChanges->clearTypeChanges();
+
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::createLayer(hwc2_layer_t* outLayerId) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ auto layer = *mLayers.emplace(std::make_shared<Layer>(*this));
+ mDevice.mLayers.emplace(std::make_pair(layer->getId(), layer));
+ *outLayerId = layer->getId();
+ ALOGV("[%" PRIu64 "] created layer %" PRIu64, mId, *outLayerId);
+ markGeometryChanged();
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::destroyLayer(hwc2_layer_t layerId) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ const auto mapLayer = mDevice.mLayers.find(layerId);
+ if (mapLayer == mDevice.mLayers.end()) {
+ ALOGV("[%" PRIu64 "] destroyLayer(%" PRIu64 ") failed: no such layer",
+ mId, layerId);
+ return Error::BadLayer;
+ }
+ const auto layer = mapLayer->second;
+ mDevice.mLayers.erase(mapLayer);
+ const auto zRange = mLayers.equal_range(layer);
+ for (auto current = zRange.first; current != zRange.second; ++current) {
+ if (**current == *layer) {
+ current = mLayers.erase(current);
+ break;
+ }
+ }
+ ALOGV("[%" PRIu64 "] destroyed layer %" PRIu64, mId, layerId);
+ markGeometryChanged();
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::getActiveConfig(hwc2_config_t* outConfig) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ if (!mActiveConfig) {
+ ALOGV("[%" PRIu64 "] getActiveConfig --> %s", mId,
+ to_string(Error::BadConfig).c_str());
+ return Error::BadConfig;
+ }
+ auto configId = mActiveConfig->getId();
+ ALOGV("[%" PRIu64 "] getActiveConfig --> %u", mId, configId);
+ *outConfig = configId;
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::getAttribute(hwc2_config_t configId,
+ Attribute attribute, int32_t* outValue) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ if (configId > mConfigs.size() || !mConfigs[configId]->isOnDisplay(*this)) {
+ ALOGV("[%" PRIu64 "] getAttribute failed: bad config (%u)", mId,
+ configId);
+ return Error::BadConfig;
+ }
+ *outValue = mConfigs[configId]->getAttribute(attribute);
+ ALOGV("[%" PRIu64 "] getAttribute(%u, %s) --> %d", mId, configId,
+ to_string(attribute).c_str(), *outValue);
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::getChangedCompositionTypes(
+ uint32_t* outNumElements, hwc2_layer_t* outLayers, int32_t* outTypes) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ if (!mChanges) {
+ ALOGE("[%" PRIu64 "] getChangedCompositionTypes failed: not validated",
+ mId);
+ return Error::NotValidated;
+ }
+
+ if ((outLayers == nullptr) || (outTypes == nullptr)) {
+ *outNumElements = mChanges->getTypeChanges().size();
+ return Error::None;
+ }
+
+ uint32_t numWritten = 0;
+ for (const auto& element : mChanges->getTypeChanges()) {
+ if (numWritten == *outNumElements) {
+ break;
+ }
+ auto layerId = element.first;
+ auto intType = static_cast<int32_t>(element.second);
+ ALOGV("Adding %" PRIu64 " %s", layerId,
+ to_string(element.second).c_str());
+ outLayers[numWritten] = layerId;
+ outTypes[numWritten] = intType;
+ ++numWritten;
+ }
+ *outNumElements = numWritten;
+
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::getColorModes(uint32_t* outNumModes,
+ int32_t* outModes) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ if (!outModes) {
+ *outNumModes = mColorModes.size();
+ return Error::None;
+ }
+ uint32_t numModes = std::min(*outNumModes,
+ static_cast<uint32_t>(mColorModes.size()));
+ std::copy_n(mColorModes.cbegin(), numModes, outModes);
+ *outNumModes = numModes;
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::getConfigs(uint32_t* outNumConfigs,
+ hwc2_config_t* outConfigs) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ if (!outConfigs) {
+ *outNumConfigs = mConfigs.size();
+ return Error::None;
+ }
+ uint32_t numWritten = 0;
+ for (const auto& config : mConfigs) {
+ if (numWritten == *outNumConfigs) {
+ break;
+ }
+ outConfigs[numWritten] = config->getId();
+ ++numWritten;
+ }
+ *outNumConfigs = numWritten;
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::getDozeSupport(int32_t* outSupport) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ if (mDevice.mHwc1MinorVersion < 4 || mHwc1Id != 0) {
+ *outSupport = 0;
+ } else {
+ *outSupport = 1;
+ }
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::getHdrCapabilities(uint32_t* outNumTypes,
+ int32_t* /*outTypes*/, float* /*outMaxLuminance*/,
+ float* /*outMaxAverageLuminance*/, float* /*outMinLuminance*/) {
+ // This isn't supported on HWC1, so per the HWC2 header, return numTypes = 0
+ *outNumTypes = 0;
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::getName(uint32_t* outSize, char* outName) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ if (!outName) {
+ *outSize = mName.size();
+ return Error::None;
+ }
+ auto numCopied = mName.copy(outName, *outSize);
+ *outSize = numCopied;
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::getReleaseFences(uint32_t* outNumElements,
+ hwc2_layer_t* outLayers, int32_t* outFences) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ uint32_t numWritten = 0;
+ bool outputsNonNull = (outLayers != nullptr) && (outFences != nullptr);
+ for (const auto& layer : mLayers) {
+ if (outputsNonNull && (numWritten == *outNumElements)) {
+ break;
+ }
+
+ auto releaseFence = layer->getReleaseFence();
+ if (releaseFence != MiniFence::NO_FENCE) {
+ if (outputsNonNull) {
+ outLayers[numWritten] = layer->getId();
+ outFences[numWritten] = releaseFence->dup();
+ }
+ ++numWritten;
+ }
+ }
+ *outNumElements = numWritten;
+
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::getRequests(int32_t* outDisplayRequests,
+ uint32_t* outNumElements, hwc2_layer_t* outLayers,
+ int32_t* outLayerRequests) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ if (!mChanges) {
+ return Error::NotValidated;
+ }
+
+ if (outLayers == nullptr || outLayerRequests == nullptr) {
+ *outNumElements = mChanges->getNumLayerRequests();
+ return Error::None;
+ }
+
+ // Display requests (HWC2::DisplayRequest) are not supported by hwc1:
+ // A hwc1 has always zero requests for the client.
+ *outDisplayRequests = 0;
+
+ uint32_t numWritten = 0;
+ for (const auto& request : mChanges->getLayerRequests()) {
+ if (numWritten == *outNumElements) {
+ break;
+ }
+ outLayers[numWritten] = request.first;
+ outLayerRequests[numWritten] = static_cast<int32_t>(request.second);
+ ++numWritten;
+ }
+
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::getType(int32_t* outType) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ *outType = static_cast<int32_t>(mType);
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::present(int32_t* outRetireFence) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ if (mChanges) {
+ Error error = mDevice.setAllDisplays();
+ if (error != Error::None) {
+ ALOGE("[%" PRIu64 "] present: setAllDisplaysFailed (%s)", mId,
+ to_string(error).c_str());
+ return error;
+ }
+ }
+
+ *outRetireFence = mRetireFence.get()->dup();
+ ALOGV("[%" PRIu64 "] present returning retire fence %d", mId,
+ *outRetireFence);
+
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::setActiveConfig(hwc2_config_t configId) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ auto config = getConfig(configId);
+ if (!config) {
+ return Error::BadConfig;
+ }
+ if (config == mActiveConfig) {
+ return Error::None;
+ }
+
+ if (mDevice.mHwc1MinorVersion >= 4) {
+ uint32_t hwc1Id = 0;
+ auto error = config->getHwc1IdForColorMode(mActiveColorMode, &hwc1Id);
+ if (error != Error::None) {
+ return error;
+ }
+
+ int intError = mDevice.mHwc1Device->setActiveConfig(mDevice.mHwc1Device,
+ mHwc1Id, static_cast<int>(hwc1Id));
+ if (intError != 0) {
+ ALOGE("setActiveConfig: Failed to set active config on HWC1 (%d)",
+ intError);
+ return Error::BadConfig;
+ }
+ mActiveConfig = config;
+ }
+
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::setClientTarget(buffer_handle_t target,
+ int32_t acquireFence, int32_t /*dataspace*/, hwc_region_t /*damage*/) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ ALOGV("[%" PRIu64 "] setClientTarget(%p, %d)", mId, target, acquireFence);
+ mClientTarget.setBuffer(target);
+ mClientTarget.setFence(acquireFence);
+ // dataspace and damage can't be used by HWC1, so ignore them
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::setColorMode(android_color_mode_t mode) {
+ std::unique_lock<std::recursive_mutex> lock (mStateMutex);
+
+ ALOGV("[%" PRIu64 "] setColorMode(%d)", mId, mode);
+
+ if (mode == mActiveColorMode) {
+ return Error::None;
+ }
+ if (mColorModes.count(mode) == 0) {
+ ALOGE("[%" PRIu64 "] Mode %d not found in mColorModes", mId, mode);
+ return Error::Unsupported;
+ }
+
+ uint32_t hwc1Config = 0;
+ auto error = mActiveConfig->getHwc1IdForColorMode(mode, &hwc1Config);
+ if (error != Error::None) {
+ return error;
+ }
+
+ ALOGV("[%" PRIu64 "] Setting HWC1 config %u", mId, hwc1Config);
+ int intError = mDevice.mHwc1Device->setActiveConfig(mDevice.mHwc1Device,
+ mHwc1Id, hwc1Config);
+ if (intError != 0) {
+ ALOGE("[%" PRIu64 "] Failed to set HWC1 config (%d)", mId, intError);
+ return Error::Unsupported;
+ }
+
+ mActiveColorMode = mode;
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::setColorTransform(android_color_transform_t hint) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ ALOGV("%" PRIu64 "] setColorTransform(%d)", mId,
+ static_cast<int32_t>(hint));
+ mHasColorTransform = (hint != HAL_COLOR_TRANSFORM_IDENTITY);
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::setOutputBuffer(buffer_handle_t buffer,
+ int32_t releaseFence) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ ALOGV("[%" PRIu64 "] setOutputBuffer(%p, %d)", mId, buffer, releaseFence);
+ mOutputBuffer.setBuffer(buffer);
+ mOutputBuffer.setFence(releaseFence);
+ return Error::None;
+}
+
+static bool isValid(PowerMode mode) {
+ switch (mode) {
+ case PowerMode::Off: // Fall-through
+ case PowerMode::DozeSuspend: // Fall-through
+ case PowerMode::Doze: // Fall-through
+ case PowerMode::On: return true;
+ }
+}
+
+static int getHwc1PowerMode(PowerMode mode) {
+ switch (mode) {
+ case PowerMode::Off: return HWC_POWER_MODE_OFF;
+ case PowerMode::DozeSuspend: return HWC_POWER_MODE_DOZE_SUSPEND;
+ case PowerMode::Doze: return HWC_POWER_MODE_DOZE;
+ case PowerMode::On: return HWC_POWER_MODE_NORMAL;
+ }
+}
+
+Error HWC2On1Adapter::Display::setPowerMode(PowerMode mode) {
+ if (!isValid(mode)) {
+ return Error::BadParameter;
+ }
+ if (mode == mPowerMode) {
+ return Error::None;
+ }
+
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ int error = 0;
+ if (mDevice.mHwc1MinorVersion < 4) {
+ error = mDevice.mHwc1Device->blank(mDevice.mHwc1Device, mHwc1Id,
+ mode == PowerMode::Off);
+ } else {
+ error = mDevice.mHwc1Device->setPowerMode(mDevice.mHwc1Device,
+ mHwc1Id, getHwc1PowerMode(mode));
+ }
+ ALOGE_IF(error != 0, "setPowerMode: Failed to set power mode on HWC1 (%d)",
+ error);
+
+ ALOGV("[%" PRIu64 "] setPowerMode(%s)", mId, to_string(mode).c_str());
+ mPowerMode = mode;
+ return Error::None;
+}
+
+static bool isValid(Vsync enable) {
+ switch (enable) {
+ case Vsync::Enable: // Fall-through
+ case Vsync::Disable: return true;
+ case Vsync::Invalid: return false;
+ }
+}
+
+Error HWC2On1Adapter::Display::setVsyncEnabled(Vsync enable) {
+ if (!isValid(enable)) {
+ return Error::BadParameter;
+ }
+ if (enable == mVsyncEnabled) {
+ return Error::None;
+ }
+
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ int error = mDevice.mHwc1Device->eventControl(mDevice.mHwc1Device,
+ mHwc1Id, HWC_EVENT_VSYNC, enable == Vsync::Enable);
+ ALOGE_IF(error != 0, "setVsyncEnabled: Failed to set vsync on HWC1 (%d)",
+ error);
+
+ mVsyncEnabled = enable;
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::validate(uint32_t* outNumTypes,
+ uint32_t* outNumRequests) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ if (!mChanges) {
+ if (!mDevice.prepareAllDisplays()) {
+ return Error::BadDisplay;
+ }
+ } else {
+ ALOGE("Validate was called more than once!");
+ }
+
+ *outNumTypes = mChanges->getNumTypes();
+ *outNumRequests = mChanges->getNumLayerRequests();
+ ALOGV("[%" PRIu64 "] validate --> %u types, %u requests", mId, *outNumTypes,
+ *outNumRequests);
+ for (auto request : mChanges->getTypeChanges()) {
+ ALOGV("Layer %" PRIu64 " --> %s", request.first,
+ to_string(request.second).c_str());
+ }
+ return *outNumTypes > 0 ? Error::HasChanges : Error::None;
+}
+
+Error HWC2On1Adapter::Display::updateLayerZ(hwc2_layer_t layerId, uint32_t z) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ const auto mapLayer = mDevice.mLayers.find(layerId);
+ if (mapLayer == mDevice.mLayers.end()) {
+ ALOGE("[%" PRIu64 "] updateLayerZ failed to find layer", mId);
+ return Error::BadLayer;
+ }
+
+ const auto layer = mapLayer->second;
+ const auto zRange = mLayers.equal_range(layer);
+ bool layerOnDisplay = false;
+ for (auto current = zRange.first; current != zRange.second; ++current) {
+ if (**current == *layer) {
+ if ((*current)->getZ() == z) {
+ // Don't change anything if the Z hasn't changed
+ return Error::None;
+ }
+ current = mLayers.erase(current);
+ layerOnDisplay = true;
+ break;
+ }
+ }
+
+ if (!layerOnDisplay) {
+ ALOGE("[%" PRIu64 "] updateLayerZ failed to find layer on display",
+ mId);
+ return Error::BadLayer;
+ }
+
+ layer->setZ(z);
+ mLayers.emplace(std::move(layer));
+ markGeometryChanged();
+
+ return Error::None;
+}
+
+static constexpr uint32_t ATTRIBUTES_WITH_COLOR[] = {
+ HWC_DISPLAY_VSYNC_PERIOD,
+ HWC_DISPLAY_WIDTH,
+ HWC_DISPLAY_HEIGHT,
+ HWC_DISPLAY_DPI_X,
+ HWC_DISPLAY_DPI_Y,
+ HWC_DISPLAY_COLOR_TRANSFORM,
+ HWC_DISPLAY_NO_ATTRIBUTE,
+};
+
+static constexpr uint32_t ATTRIBUTES_WITHOUT_COLOR[] = {
+ HWC_DISPLAY_VSYNC_PERIOD,
+ HWC_DISPLAY_WIDTH,
+ HWC_DISPLAY_HEIGHT,
+ HWC_DISPLAY_DPI_X,
+ HWC_DISPLAY_DPI_Y,
+ HWC_DISPLAY_NO_ATTRIBUTE,
+};
+
+static constexpr size_t NUM_ATTRIBUTES_WITH_COLOR =
+ sizeof(ATTRIBUTES_WITH_COLOR) / sizeof(uint32_t);
+static_assert(sizeof(ATTRIBUTES_WITH_COLOR) > sizeof(ATTRIBUTES_WITHOUT_COLOR),
+ "Attribute tables have unexpected sizes");
+
+static constexpr uint32_t ATTRIBUTE_MAP_WITH_COLOR[] = {
+ 6, // HWC_DISPLAY_NO_ATTRIBUTE = 0
+ 0, // HWC_DISPLAY_VSYNC_PERIOD = 1,
+ 1, // HWC_DISPLAY_WIDTH = 2,
+ 2, // HWC_DISPLAY_HEIGHT = 3,
+ 3, // HWC_DISPLAY_DPI_X = 4,
+ 4, // HWC_DISPLAY_DPI_Y = 5,
+ 5, // HWC_DISPLAY_COLOR_TRANSFORM = 6,
+};
+
+static constexpr uint32_t ATTRIBUTE_MAP_WITHOUT_COLOR[] = {
+ 5, // HWC_DISPLAY_NO_ATTRIBUTE = 0
+ 0, // HWC_DISPLAY_VSYNC_PERIOD = 1,
+ 1, // HWC_DISPLAY_WIDTH = 2,
+ 2, // HWC_DISPLAY_HEIGHT = 3,
+ 3, // HWC_DISPLAY_DPI_X = 4,
+ 4, // HWC_DISPLAY_DPI_Y = 5,
+};
+
+template <uint32_t attribute>
+static constexpr bool attributesMatch()
+{
+ bool match = (attribute ==
+ ATTRIBUTES_WITH_COLOR[ATTRIBUTE_MAP_WITH_COLOR[attribute]]);
+ if (attribute == HWC_DISPLAY_COLOR_TRANSFORM) {
+ return match;
+ }
+
+ return match && (attribute ==
+ ATTRIBUTES_WITHOUT_COLOR[ATTRIBUTE_MAP_WITHOUT_COLOR[attribute]]);
+}
+static_assert(attributesMatch<HWC_DISPLAY_VSYNC_PERIOD>(),
+ "Tables out of sync");
+static_assert(attributesMatch<HWC_DISPLAY_WIDTH>(), "Tables out of sync");
+static_assert(attributesMatch<HWC_DISPLAY_HEIGHT>(), "Tables out of sync");
+static_assert(attributesMatch<HWC_DISPLAY_DPI_X>(), "Tables out of sync");
+static_assert(attributesMatch<HWC_DISPLAY_DPI_Y>(), "Tables out of sync");
+static_assert(attributesMatch<HWC_DISPLAY_COLOR_TRANSFORM>(),
+ "Tables out of sync");
+
+void HWC2On1Adapter::Display::populateConfigs() {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ ALOGV("[%" PRIu64 "] populateConfigs", mId);
+
+ if (mHwc1Id == -1) {
+ ALOGE("populateConfigs: HWC1 ID not set");
+ return;
+ }
+
+ const size_t MAX_NUM_CONFIGS = 128;
+ uint32_t configs[MAX_NUM_CONFIGS] = {};
+ size_t numConfigs = MAX_NUM_CONFIGS;
+ mDevice.mHwc1Device->getDisplayConfigs(mDevice.mHwc1Device, mHwc1Id,
+ configs, &numConfigs);
+
+ for (size_t c = 0; c < numConfigs; ++c) {
+ uint32_t hwc1ConfigId = configs[c];
+ auto newConfig = std::make_shared<Config>(*this);
+
+ int32_t values[NUM_ATTRIBUTES_WITH_COLOR] = {};
+ bool hasColor = true;
+ auto result = mDevice.mHwc1Device->getDisplayAttributes(
+ mDevice.mHwc1Device, mHwc1Id, hwc1ConfigId,
+ ATTRIBUTES_WITH_COLOR, values);
+ if (result != 0) {
+ mDevice.mHwc1Device->getDisplayAttributes(mDevice.mHwc1Device,
+ mHwc1Id, hwc1ConfigId, ATTRIBUTES_WITHOUT_COLOR, values);
+ hasColor = false;
+ }
+
+ auto attributeMap = hasColor ?
+ ATTRIBUTE_MAP_WITH_COLOR : ATTRIBUTE_MAP_WITHOUT_COLOR;
+
+ newConfig->setAttribute(Attribute::VsyncPeriod,
+ values[attributeMap[HWC_DISPLAY_VSYNC_PERIOD]]);
+ newConfig->setAttribute(Attribute::Width,
+ values[attributeMap[HWC_DISPLAY_WIDTH]]);
+ newConfig->setAttribute(Attribute::Height,
+ values[attributeMap[HWC_DISPLAY_HEIGHT]]);
+ newConfig->setAttribute(Attribute::DpiX,
+ values[attributeMap[HWC_DISPLAY_DPI_X]]);
+ newConfig->setAttribute(Attribute::DpiY,
+ values[attributeMap[HWC_DISPLAY_DPI_Y]]);
+ if (hasColor) {
+ // In HWC1, color modes are referred to as color transforms. To avoid confusion with
+ // the HWC2 concept of color transforms, we internally refer to them as color modes for
+ // both HWC1 and 2.
+ newConfig->setAttribute(ColorMode,
+ values[attributeMap[HWC_DISPLAY_COLOR_TRANSFORM]]);
+ }
+
+ // We can only do this after attempting to read the color mode
+ newConfig->setHwc1Id(hwc1ConfigId);
+
+ for (auto& existingConfig : mConfigs) {
+ if (existingConfig->merge(*newConfig)) {
+ ALOGV("Merged config %d with existing config %u: %s",
+ hwc1ConfigId, existingConfig->getId(),
+ existingConfig->toString().c_str());
+ newConfig.reset();
+ break;
+ }
+ }
+
+ // If it wasn't merged with any existing config, add it to the end
+ if (newConfig) {
+ newConfig->setId(static_cast<hwc2_config_t>(mConfigs.size()));
+ ALOGV("Found new config %u: %s", newConfig->getId(),
+ newConfig->toString().c_str());
+ mConfigs.emplace_back(std::move(newConfig));
+ }
+ }
+
+ initializeActiveConfig();
+ populateColorModes();
+}
+
+void HWC2On1Adapter::Display::populateConfigs(uint32_t width, uint32_t height) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ mConfigs.emplace_back(std::make_shared<Config>(*this));
+ auto& config = mConfigs[0];
+
+ config->setAttribute(Attribute::Width, static_cast<int32_t>(width));
+ config->setAttribute(Attribute::Height, static_cast<int32_t>(height));
+ config->setHwc1Id(0);
+ config->setId(0);
+ mActiveConfig = config;
+}
+
+bool HWC2On1Adapter::Display::prepare() {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ // Only prepare display contents for displays HWC1 knows about
+ if (mHwc1Id == -1) {
+ return true;
+ }
+
+ // It doesn't make sense to prepare a display for which there is no active
+ // config, so return early
+ if (!mActiveConfig) {
+ ALOGE("[%" PRIu64 "] Attempted to prepare, but no config active", mId);
+ return false;
+ }
+
+ allocateRequestedContents();
+ assignHwc1LayerIds();
+
+ mHwc1RequestedContents->retireFenceFd = -1;
+ mHwc1RequestedContents->flags = 0;
+ if (mGeometryChanged) {
+ mHwc1RequestedContents->flags |= HWC_GEOMETRY_CHANGED;
+ }
+ mHwc1RequestedContents->outbuf = mOutputBuffer.getBuffer();
+ mHwc1RequestedContents->outbufAcquireFenceFd = mOutputBuffer.getFence();
+
+ // +1 is for framebuffer target layer.
+ mHwc1RequestedContents->numHwLayers = mLayers.size() + 1;
+ for (auto& layer : mLayers) {
+ auto& hwc1Layer = mHwc1RequestedContents->hwLayers[layer->getHwc1Id()];
+ hwc1Layer.releaseFenceFd = -1;
+ hwc1Layer.acquireFenceFd = -1;
+ ALOGV("Applying states for layer %" PRIu64 " ", layer->getId());
+ layer->applyState(hwc1Layer);
+ }
+
+ prepareFramebufferTarget();
+
+ resetGeometryMarker();
+
+ return true;
+}
+
+void HWC2On1Adapter::Display::generateChanges() {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ mChanges.reset(new Changes);
+
+ size_t numLayers = mHwc1RequestedContents->numHwLayers;
+ for (size_t hwc1Id = 0; hwc1Id < numLayers; ++hwc1Id) {
+ const auto& receivedLayer = mHwc1RequestedContents->hwLayers[hwc1Id];
+ if (mHwc1LayerMap.count(hwc1Id) == 0) {
+ ALOGE_IF(receivedLayer.compositionType != HWC_FRAMEBUFFER_TARGET,
+ "generateChanges: HWC1 layer %zd doesn't have a"
+ " matching HWC2 layer, and isn't the framebuffer target",
+ hwc1Id);
+ continue;
+ }
+
+ Layer& layer = *mHwc1LayerMap[hwc1Id];
+ updateTypeChanges(receivedLayer, layer);
+ updateLayerRequests(receivedLayer, layer);
+ }
+}
+
+bool HWC2On1Adapter::Display::hasChanges() const {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+ return mChanges != nullptr;
+}
+
+Error HWC2On1Adapter::Display::set(hwc_display_contents_1& hwcContents) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ if (!mChanges || (mChanges->getNumTypes() > 0)) {
+ ALOGE("[%" PRIu64 "] set failed: not validated", mId);
+ return Error::NotValidated;
+ }
+
+ // Set up the client/framebuffer target
+ auto numLayers = hwcContents.numHwLayers;
+
+ // Close acquire fences on FRAMEBUFFER layers, since they will not be used
+ // by HWC
+ for (size_t l = 0; l < numLayers - 1; ++l) {
+ auto& layer = hwcContents.hwLayers[l];
+ if (layer.compositionType == HWC_FRAMEBUFFER) {
+ ALOGV("Closing fence %d for layer %zd", layer.acquireFenceFd, l);
+ close(layer.acquireFenceFd);
+ layer.acquireFenceFd = -1;
+ }
+ }
+
+ auto& clientTargetLayer = hwcContents.hwLayers[numLayers - 1];
+ if (clientTargetLayer.compositionType == HWC_FRAMEBUFFER_TARGET) {
+ clientTargetLayer.handle = mClientTarget.getBuffer();
+ clientTargetLayer.acquireFenceFd = mClientTarget.getFence();
+ } else {
+ ALOGE("[%" PRIu64 "] set: last HWC layer wasn't FRAMEBUFFER_TARGET",
+ mId);
+ }
+
+ mChanges.reset();
+
+ return Error::None;
+}
+
+void HWC2On1Adapter::Display::addRetireFence(int fenceFd) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+ mRetireFence.add(fenceFd);
+}
+
+void HWC2On1Adapter::Display::addReleaseFences(
+ const hwc_display_contents_1_t& hwcContents) {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ size_t numLayers = hwcContents.numHwLayers;
+ for (size_t hwc1Id = 0; hwc1Id < numLayers; ++hwc1Id) {
+ const auto& receivedLayer = hwcContents.hwLayers[hwc1Id];
+ if (mHwc1LayerMap.count(hwc1Id) == 0) {
+ if (receivedLayer.compositionType != HWC_FRAMEBUFFER_TARGET) {
+ ALOGE("addReleaseFences: HWC1 layer %zd doesn't have a"
+ " matching HWC2 layer, and isn't the framebuffer"
+ " target", hwc1Id);
+ }
+ // Close the framebuffer target release fence since we will use the
+ // display retire fence instead
+ if (receivedLayer.releaseFenceFd != -1) {
+ close(receivedLayer.releaseFenceFd);
+ }
+ continue;
+ }
+
+ Layer& layer = *mHwc1LayerMap[hwc1Id];
+ ALOGV("Adding release fence %d to layer %" PRIu64,
+ receivedLayer.releaseFenceFd, layer.getId());
+ layer.addReleaseFence(receivedLayer.releaseFenceFd);
+ }
+}
+
+bool HWC2On1Adapter::Display::hasColorTransform() const {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+ return mHasColorTransform;
+}
+
+static std::string hwc1CompositionString(int32_t type) {
+ switch (type) {
+ case HWC_FRAMEBUFFER: return "Framebuffer";
+ case HWC_OVERLAY: return "Overlay";
+ case HWC_BACKGROUND: return "Background";
+ case HWC_FRAMEBUFFER_TARGET: return "FramebufferTarget";
+ case HWC_SIDEBAND: return "Sideband";
+ case HWC_CURSOR_OVERLAY: return "CursorOverlay";
+ default:
+ return std::string("Unknown (") + std::to_string(type) + ")";
+ }
+}
+
+static std::string hwc1TransformString(int32_t transform) {
+ switch (transform) {
+ case 0: return "None";
+ case HWC_TRANSFORM_FLIP_H: return "FlipH";
+ case HWC_TRANSFORM_FLIP_V: return "FlipV";
+ case HWC_TRANSFORM_ROT_90: return "Rotate90";
+ case HWC_TRANSFORM_ROT_180: return "Rotate180";
+ case HWC_TRANSFORM_ROT_270: return "Rotate270";
+ case HWC_TRANSFORM_FLIP_H_ROT_90: return "FlipHRotate90";
+ case HWC_TRANSFORM_FLIP_V_ROT_90: return "FlipVRotate90";
+ default:
+ return std::string("Unknown (") + std::to_string(transform) + ")";
+ }
+}
+
+static std::string hwc1BlendModeString(int32_t mode) {
+ switch (mode) {
+ case HWC_BLENDING_NONE: return "None";
+ case HWC_BLENDING_PREMULT: return "Premultiplied";
+ case HWC_BLENDING_COVERAGE: return "Coverage";
+ default:
+ return std::string("Unknown (") + std::to_string(mode) + ")";
+ }
+}
+
+static std::string rectString(hwc_rect_t rect) {
+ std::stringstream output;
+ output << "[" << rect.left << ", " << rect.top << ", ";
+ output << rect.right << ", " << rect.bottom << "]";
+ return output.str();
+}
+
+static std::string approximateFloatString(float f) {
+ if (static_cast<int32_t>(f) == f) {
+ return std::to_string(static_cast<int32_t>(f));
+ }
+ int32_t truncated = static_cast<int32_t>(f * 10);
+ bool approximate = (static_cast<float>(truncated) != f * 10);
+ const size_t BUFFER_SIZE = 32;
+ char buffer[BUFFER_SIZE] = {};
+ auto bytesWritten = snprintf(buffer, BUFFER_SIZE,
+ "%s%.1f", approximate ? "~" : "", f);
+ return std::string(buffer, bytesWritten);
+}
+
+static std::string frectString(hwc_frect_t frect) {
+ std::stringstream output;
+ output << "[" << approximateFloatString(frect.left) << ", ";
+ output << approximateFloatString(frect.top) << ", ";
+ output << approximateFloatString(frect.right) << ", ";
+ output << approximateFloatString(frect.bottom) << "]";
+ return output.str();
+}
+
+static std::string colorString(hwc_color_t color) {
+ std::stringstream output;
+ output << "RGBA [";
+ output << static_cast<int32_t>(color.r) << ", ";
+ output << static_cast<int32_t>(color.g) << ", ";
+ output << static_cast<int32_t>(color.b) << ", ";
+ output << static_cast<int32_t>(color.a) << "]";
+ return output.str();
+}
+
+static std::string alphaString(float f) {
+ const size_t BUFFER_SIZE = 8;
+ char buffer[BUFFER_SIZE] = {};
+ auto bytesWritten = snprintf(buffer, BUFFER_SIZE, "%.3f", f);
+ return std::string(buffer, bytesWritten);
+}
+
+static std::string to_string(const hwc_layer_1_t& hwcLayer,
+ int32_t hwc1MinorVersion) {
+ const char* fill = " ";
+
+ std::stringstream output;
+
+ output << " Composition: " <<
+ hwc1CompositionString(hwcLayer.compositionType);
+
+ if (hwcLayer.compositionType == HWC_BACKGROUND) {
+ output << " Color: " << colorString(hwcLayer.backgroundColor) << '\n';
+ } else if (hwcLayer.compositionType == HWC_SIDEBAND) {
+ output << " Stream: " << hwcLayer.sidebandStream << '\n';
+ } else {
+ output << " Buffer: " << hwcLayer.handle << "/" <<
+ hwcLayer.acquireFenceFd << '\n';
+ }
+
+ output << fill << "Display frame: " << rectString(hwcLayer.displayFrame) <<
+ '\n';
+
+ output << fill << "Source crop: ";
+ if (hwc1MinorVersion >= 3) {
+ output << frectString(hwcLayer.sourceCropf) << '\n';
+ } else {
+ output << rectString(hwcLayer.sourceCropi) << '\n';
+ }
+
+ output << fill << "Transform: " << hwc1TransformString(hwcLayer.transform);
+ output << " Blend mode: " << hwc1BlendModeString(hwcLayer.blending);
+ if (hwcLayer.planeAlpha != 0xFF) {
+ output << " Alpha: " << alphaString(hwcLayer.planeAlpha / 255.0f);
+ }
+ output << '\n';
+
+ if (hwcLayer.hints != 0) {
+ output << fill << "Hints:";
+ if ((hwcLayer.hints & HWC_HINT_TRIPLE_BUFFER) != 0) {
+ output << " TripleBuffer";
+ }
+ if ((hwcLayer.hints & HWC_HINT_CLEAR_FB) != 0) {
+ output << " ClearFB";
+ }
+ output << '\n';
+ }
+
+ if (hwcLayer.flags != 0) {
+ output << fill << "Flags:";
+ if ((hwcLayer.flags & HWC_SKIP_LAYER) != 0) {
+ output << " SkipLayer";
+ }
+ if ((hwcLayer.flags & HWC_IS_CURSOR_LAYER) != 0) {
+ output << " IsCursorLayer";
+ }
+ output << '\n';
+ }
+
+ return output.str();
+}
+
+static std::string to_string(const hwc_display_contents_1_t& hwcContents,
+ int32_t hwc1MinorVersion) {
+ const char* fill = " ";
+
+ std::stringstream output;
+ output << fill << "Geometry changed: " <<
+ ((hwcContents.flags & HWC_GEOMETRY_CHANGED) != 0 ? "Y\n" : "N\n");
+
+ output << fill << hwcContents.numHwLayers << " Layer" <<
+ ((hwcContents.numHwLayers == 1) ? "\n" : "s\n");
+ for (size_t layer = 0; layer < hwcContents.numHwLayers; ++layer) {
+ output << fill << " Layer " << layer;
+ output << to_string(hwcContents.hwLayers[layer], hwc1MinorVersion);
+ }
+
+ if (hwcContents.outbuf != nullptr) {
+ output << fill << "Output buffer: " << hwcContents.outbuf << "/" <<
+ hwcContents.outbufAcquireFenceFd << '\n';
+ }
+
+ return output.str();
+}
+
+std::string HWC2On1Adapter::Display::dump() const {
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ std::stringstream output;
+
+ output << " Display " << mId << ": ";
+ output << to_string(mType) << " ";
+ output << "HWC1 ID: " << mHwc1Id << " ";
+ output << "Power mode: " << to_string(mPowerMode) << " ";
+ output << "Vsync: " << to_string(mVsyncEnabled) << '\n';
+
+ output << " Color modes [active]:";
+ for (const auto& mode : mColorModes) {
+ if (mode == mActiveColorMode) {
+ output << " [" << mode << ']';
+ } else {
+ output << " " << mode;
+ }
+ }
+ output << '\n';
+
+ output << " " << mConfigs.size() << " Config" <<
+ (mConfigs.size() == 1 ? "" : "s") << " (* active)\n";
+ for (const auto& config : mConfigs) {
+ output << (config == mActiveConfig ? " * " : " ");
+ output << config->toString(true) << '\n';
+ }
+
+ output << " " << mLayers.size() << " Layer" <<
+ (mLayers.size() == 1 ? "" : "s") << '\n';
+ for (const auto& layer : mLayers) {
+ output << layer->dump();
+ }
+
+ output << " Client target: " << mClientTarget.getBuffer() << '\n';
+
+ if (mOutputBuffer.getBuffer() != nullptr) {
+ output << " Output buffer: " << mOutputBuffer.getBuffer() << '\n';
+ }
+
+ if (mHwc1RequestedContents) {
+ output << " Last requested HWC1 state\n";
+ output << to_string(*mHwc1RequestedContents, mDevice.mHwc1MinorVersion);
+ }
+
+ return output.str();
+}
+
+hwc_rect_t* HWC2On1Adapter::Display::GetRects(size_t numRects) {
+ if (numRects == 0) {
+ return nullptr;
+ }
+
+ if (numRects > mNumAvailableRects) {
+ // This should NEVER happen since we calculated how many rects the
+ // display would need.
+ ALOGE("Rect allocation failure! SF is likely to crash soon!");
+ return nullptr;
+
+ }
+ hwc_rect_t* rects = mNextAvailableRect;
+ mNextAvailableRect += numRects;
+ mNumAvailableRects -= numRects;
+ return rects;
+}
+
+hwc_display_contents_1* HWC2On1Adapter::Display::getDisplayContents() {
+ return mHwc1RequestedContents.get();
+}
+
+void HWC2On1Adapter::Display::Config::setAttribute(HWC2::Attribute attribute,
+ int32_t value) {
+ mAttributes[attribute] = value;
+}
+
+int32_t HWC2On1Adapter::Display::Config::getAttribute(Attribute attribute) const {
+ if (mAttributes.count(attribute) == 0) {
+ return -1;
+ }
+ return mAttributes.at(attribute);
+}
+
+void HWC2On1Adapter::Display::Config::setHwc1Id(uint32_t id) {
+ android_color_mode_t colorMode = static_cast<android_color_mode_t>(getAttribute(ColorMode));
+ mHwc1Ids.emplace(colorMode, id);
+}
+
+bool HWC2On1Adapter::Display::Config::hasHwc1Id(uint32_t id) const {
+ for (const auto& idPair : mHwc1Ids) {
+ if (id == idPair.second) {
+ return true;
+ }
+ }
+ return false;
+}
+
+Error HWC2On1Adapter::Display::Config::getColorModeForHwc1Id(
+ uint32_t id, android_color_mode_t* outMode) const {
+ for (const auto& idPair : mHwc1Ids) {
+ if (id == idPair.second) {
+ *outMode = idPair.first;
+ return Error::None;
+ }
+ }
+ ALOGE("Unable to find color mode for HWC ID %" PRIu32 " on config %u", id, mId);
+ return Error::BadParameter;
+}
+
+Error HWC2On1Adapter::Display::Config::getHwc1IdForColorMode(android_color_mode_t mode,
+ uint32_t* outId) const {
+ for (const auto& idPair : mHwc1Ids) {
+ if (mode == idPair.first) {
+ *outId = idPair.second;
+ return Error::None;
+ }
+ }
+ ALOGE("Unable to find HWC1 ID for color mode %d on config %u", mode, mId);
+ return Error::BadParameter;
+}
+
+bool HWC2On1Adapter::Display::Config::merge(const Config& other) {
+ auto attributes = {HWC2::Attribute::Width, HWC2::Attribute::Height,
+ HWC2::Attribute::VsyncPeriod, HWC2::Attribute::DpiX,
+ HWC2::Attribute::DpiY};
+ for (auto attribute : attributes) {
+ if (getAttribute(attribute) != other.getAttribute(attribute)) {
+ return false;
+ }
+ }
+ android_color_mode_t otherColorMode =
+ static_cast<android_color_mode_t>(other.getAttribute(ColorMode));
+ if (mHwc1Ids.count(otherColorMode) != 0) {
+ ALOGE("Attempted to merge two configs (%u and %u) which appear to be "
+ "identical", mHwc1Ids.at(otherColorMode),
+ other.mHwc1Ids.at(otherColorMode));
+ return false;
+ }
+ mHwc1Ids.emplace(otherColorMode,
+ other.mHwc1Ids.at(otherColorMode));
+ return true;
+}
+
+std::set<android_color_mode_t> HWC2On1Adapter::Display::Config::getColorModes() const {
+ std::set<android_color_mode_t> colorModes;
+ for (const auto& idPair : mHwc1Ids) {
+ colorModes.emplace(idPair.first);
+ }
+ return colorModes;
+}
+
+std::string HWC2On1Adapter::Display::Config::toString(bool splitLine) const {
+ std::string output;
+
+ const size_t BUFFER_SIZE = 100;
+ char buffer[BUFFER_SIZE] = {};
+ auto writtenBytes = snprintf(buffer, BUFFER_SIZE,
+ "%u x %u", mAttributes.at(HWC2::Attribute::Width),
+ mAttributes.at(HWC2::Attribute::Height));
+ output.append(buffer, writtenBytes);
+
+ if (mAttributes.count(HWC2::Attribute::VsyncPeriod) != 0) {
+ std::memset(buffer, 0, BUFFER_SIZE);
+ writtenBytes = snprintf(buffer, BUFFER_SIZE, " @ %.1f Hz",
+ 1e9 / mAttributes.at(HWC2::Attribute::VsyncPeriod));
+ output.append(buffer, writtenBytes);
+ }
+
+ if (mAttributes.count(HWC2::Attribute::DpiX) != 0 &&
+ mAttributes.at(HWC2::Attribute::DpiX) != -1) {
+ std::memset(buffer, 0, BUFFER_SIZE);
+ writtenBytes = snprintf(buffer, BUFFER_SIZE,
+ ", DPI: %.1f x %.1f",
+ mAttributes.at(HWC2::Attribute::DpiX) / 1000.0f,
+ mAttributes.at(HWC2::Attribute::DpiY) / 1000.0f);
+ output.append(buffer, writtenBytes);
+ }
+
+ std::memset(buffer, 0, BUFFER_SIZE);
+ if (splitLine) {
+ writtenBytes = snprintf(buffer, BUFFER_SIZE,
+ "\n HWC1 ID/Color transform:");
+ } else {
+ writtenBytes = snprintf(buffer, BUFFER_SIZE,
+ ", HWC1 ID/Color transform:");
+ }
+ output.append(buffer, writtenBytes);
+
+
+ for (const auto& id : mHwc1Ids) {
+ android_color_mode_t colorMode = id.first;
+ uint32_t hwc1Id = id.second;
+ std::memset(buffer, 0, BUFFER_SIZE);
+ if (colorMode == mDisplay.mActiveColorMode) {
+ writtenBytes = snprintf(buffer, BUFFER_SIZE, " [%u/%d]", hwc1Id,
+ colorMode);
+ } else {
+ writtenBytes = snprintf(buffer, BUFFER_SIZE, " %u/%d", hwc1Id,
+ colorMode);
+ }
+ output.append(buffer, writtenBytes);
+ }
+
+ return output;
+}
+
+std::shared_ptr<const HWC2On1Adapter::Display::Config>
+ HWC2On1Adapter::Display::getConfig(hwc2_config_t configId) const {
+ if (configId > mConfigs.size() || !mConfigs[configId]->isOnDisplay(*this)) {
+ return nullptr;
+ }
+ return mConfigs[configId];
+}
+
+void HWC2On1Adapter::Display::populateColorModes() {
+ mColorModes = mConfigs[0]->getColorModes();
+ for (const auto& config : mConfigs) {
+ std::set<android_color_mode_t> intersection;
+ auto configModes = config->getColorModes();
+ std::set_intersection(mColorModes.cbegin(), mColorModes.cend(),
+ configModes.cbegin(), configModes.cend(),
+ std::inserter(intersection, intersection.begin()));
+ std::swap(intersection, mColorModes);
+ }
+}
+
+void HWC2On1Adapter::Display::initializeActiveConfig() {
+ if (mDevice.mHwc1Device->getActiveConfig == nullptr) {
+ ALOGV("getActiveConfig is null, choosing config 0");
+ mActiveConfig = mConfigs[0];
+ mActiveColorMode = HAL_COLOR_MODE_NATIVE;
+ return;
+ }
+
+ auto activeConfig = mDevice.mHwc1Device->getActiveConfig(
+ mDevice.mHwc1Device, mHwc1Id);
+
+ // Some devices startup without an activeConfig:
+ // We need to set one ourselves.
+ if (activeConfig == HWC_ERROR) {
+ ALOGV("There is no active configuration: Picking the first one: 0.");
+ const int defaultIndex = 0;
+ mDevice.mHwc1Device->setActiveConfig(mDevice.mHwc1Device, mHwc1Id, defaultIndex);
+ activeConfig = defaultIndex;
+ }
+
+ for (const auto& config : mConfigs) {
+ if (config->hasHwc1Id(activeConfig)) {
+ ALOGE("Setting active config to %d for HWC1 config %u", config->getId(), activeConfig);
+ mActiveConfig = config;
+ if (config->getColorModeForHwc1Id(activeConfig, &mActiveColorMode) != Error::None) {
+ // This should never happen since we checked for the config's presence before
+ // setting it as active.
+ ALOGE("Unable to find color mode for active HWC1 config %d", config->getId());
+ mActiveColorMode = HAL_COLOR_MODE_NATIVE;
+ }
+ break;
+ }
+ }
+ if (!mActiveConfig) {
+ ALOGV("Unable to find active HWC1 config %u, defaulting to "
+ "config 0", activeConfig);
+ mActiveConfig = mConfigs[0];
+ mActiveColorMode = HAL_COLOR_MODE_NATIVE;
+ }
+
+
+
+
+}
+
+void HWC2On1Adapter::Display::allocateRequestedContents() {
+ // What needs to be allocated:
+ // 1 hwc_display_contents_1_t
+ // 1 hwc_layer_1_t for each layer
+ // 1 hwc_rect_t for each layer's surfaceDamage
+ // 1 hwc_rect_t for each layer's visibleRegion
+ // 1 hwc_layer_1_t for the framebuffer
+ // 1 hwc_rect_t for the framebuffer's visibleRegion
+
+ // Count # of surfaceDamage
+ size_t numSurfaceDamages = 0;
+ for (const auto& layer : mLayers) {
+ numSurfaceDamages += layer->getNumSurfaceDamages();
+ }
+
+ // Count # of visibleRegions (start at 1 for mandatory framebuffer target
+ // region)
+ size_t numVisibleRegion = 1;
+ for (const auto& layer : mLayers) {
+ numVisibleRegion += layer->getNumVisibleRegions();
+ }
+
+ size_t numRects = numVisibleRegion + numSurfaceDamages;
+ auto numLayers = mLayers.size() + 1;
+ size_t size = sizeof(hwc_display_contents_1_t) +
+ sizeof(hwc_layer_1_t) * numLayers +
+ sizeof(hwc_rect_t) * numRects;
+ auto contents = static_cast<hwc_display_contents_1_t*>(std::calloc(size, 1));
+ mHwc1RequestedContents.reset(contents);
+ mNextAvailableRect = reinterpret_cast<hwc_rect_t*>(&contents->hwLayers[numLayers]);
+ mNumAvailableRects = numRects;
+}
+
+void HWC2On1Adapter::Display::assignHwc1LayerIds() {
+ mHwc1LayerMap.clear();
+ size_t nextHwc1Id = 0;
+ for (auto& layer : mLayers) {
+ mHwc1LayerMap[nextHwc1Id] = layer;
+ layer->setHwc1Id(nextHwc1Id++);
+ }
+}
+
+void HWC2On1Adapter::Display::updateTypeChanges(const hwc_layer_1_t& hwc1Layer,
+ const Layer& layer) {
+ auto layerId = layer.getId();
+ switch (hwc1Layer.compositionType) {
+ case HWC_FRAMEBUFFER:
+ if (layer.getCompositionType() != Composition::Client) {
+ mChanges->addTypeChange(layerId, Composition::Client);
+ }
+ break;
+ case HWC_OVERLAY:
+ if (layer.getCompositionType() != Composition::Device) {
+ mChanges->addTypeChange(layerId, Composition::Device);
+ }
+ break;
+ case HWC_BACKGROUND:
+ ALOGE_IF(layer.getCompositionType() != Composition::SolidColor,
+ "updateTypeChanges: HWC1 requested BACKGROUND, but HWC2"
+ " wasn't expecting SolidColor");
+ break;
+ case HWC_FRAMEBUFFER_TARGET:
+ // Do nothing, since it shouldn't be modified by HWC1
+ break;
+ case HWC_SIDEBAND:
+ ALOGE_IF(layer.getCompositionType() != Composition::Sideband,
+ "updateTypeChanges: HWC1 requested SIDEBAND, but HWC2"
+ " wasn't expecting Sideband");
+ break;
+ case HWC_CURSOR_OVERLAY:
+ ALOGE_IF(layer.getCompositionType() != Composition::Cursor,
+ "updateTypeChanges: HWC1 requested CURSOR_OVERLAY, but"
+ " HWC2 wasn't expecting Cursor");
+ break;
+ }
+}
+
+void HWC2On1Adapter::Display::updateLayerRequests(
+ const hwc_layer_1_t& hwc1Layer, const Layer& layer) {
+ if ((hwc1Layer.hints & HWC_HINT_CLEAR_FB) != 0) {
+ mChanges->addLayerRequest(layer.getId(),
+ LayerRequest::ClearClientTarget);
+ }
+}
+
+void HWC2On1Adapter::Display::prepareFramebufferTarget() {
+ // We check that mActiveConfig is valid in Display::prepare
+ int32_t width = mActiveConfig->getAttribute(Attribute::Width);
+ int32_t height = mActiveConfig->getAttribute(Attribute::Height);
+
+ auto& hwc1Target = mHwc1RequestedContents->hwLayers[mLayers.size()];
+ hwc1Target.compositionType = HWC_FRAMEBUFFER_TARGET;
+ hwc1Target.releaseFenceFd = -1;
+ hwc1Target.hints = 0;
+ hwc1Target.flags = 0;
+ hwc1Target.transform = 0;
+ hwc1Target.blending = HWC_BLENDING_PREMULT;
+ if (mDevice.getHwc1MinorVersion() < 3) {
+ hwc1Target.sourceCropi = {0, 0, width, height};
+ } else {
+ hwc1Target.sourceCropf = {0.0f, 0.0f, static_cast<float>(width),
+ static_cast<float>(height)};
+ }
+ hwc1Target.displayFrame = {0, 0, width, height};
+ hwc1Target.planeAlpha = 255;
+
+ hwc1Target.visibleRegionScreen.numRects = 1;
+ hwc_rect_t* rects = GetRects(1);
+ rects[0].left = 0;
+ rects[0].top = 0;
+ rects[0].right = width;
+ rects[0].bottom = height;
+ hwc1Target.visibleRegionScreen.rects = rects;
+
+ // We will set this to the correct value in set
+ hwc1Target.acquireFenceFd = -1;
+}
+
+// Layer functions
+
+std::atomic<hwc2_layer_t> HWC2On1Adapter::Layer::sNextId(1);
+
+HWC2On1Adapter::Layer::Layer(Display& display)
+ : mId(sNextId++),
+ mDisplay(display),
+ mBuffer(),
+ mSurfaceDamage(),
+ mBlendMode(BlendMode::None),
+ mColor({0, 0, 0, 0}),
+ mCompositionType(Composition::Invalid),
+ mDisplayFrame({0, 0, -1, -1}),
+ mPlaneAlpha(0.0f),
+ mSidebandStream(nullptr),
+ mSourceCrop({0.0f, 0.0f, -1.0f, -1.0f}),
+ mTransform(Transform::None),
+ mVisibleRegion(),
+ mZ(0),
+ mReleaseFence(),
+ mHwc1Id(0),
+ mHasUnsupportedPlaneAlpha(false) {}
+
+bool HWC2On1Adapter::SortLayersByZ::operator()(
+ const std::shared_ptr<Layer>& lhs, const std::shared_ptr<Layer>& rhs) {
+ return lhs->getZ() < rhs->getZ();
+}
+
+Error HWC2On1Adapter::Layer::setBuffer(buffer_handle_t buffer,
+ int32_t acquireFence) {
+ ALOGV("Setting acquireFence to %d for layer %" PRIu64, acquireFence, mId);
+ mBuffer.setBuffer(buffer);
+ mBuffer.setFence(acquireFence);
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setCursorPosition(int32_t x, int32_t y) {
+ if (mCompositionType != Composition::Cursor) {
+ return Error::BadLayer;
+ }
+
+ if (mDisplay.hasChanges()) {
+ return Error::NotValidated;
+ }
+
+ auto displayId = mDisplay.getHwc1Id();
+ auto hwc1Device = mDisplay.getDevice().getHwc1Device();
+ hwc1Device->setCursorPositionAsync(hwc1Device, displayId, x, y);
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setSurfaceDamage(hwc_region_t damage) {
+ // HWC1 supports surface damage starting only with version 1.5.
+ if (mDisplay.getDevice().mHwc1MinorVersion < 5) {
+ return Error::None;
+ }
+ mSurfaceDamage.resize(damage.numRects);
+ std::copy_n(damage.rects, damage.numRects, mSurfaceDamage.begin());
+ return Error::None;
+}
+
+// Layer state functions
+
+Error HWC2On1Adapter::Layer::setBlendMode(BlendMode mode) {
+ mBlendMode = mode;
+ mDisplay.markGeometryChanged();
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setColor(hwc_color_t color) {
+ mColor = color;
+ mDisplay.markGeometryChanged();
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setCompositionType(Composition type) {
+ mCompositionType = type;
+ mDisplay.markGeometryChanged();
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setDataspace(android_dataspace_t) {
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setDisplayFrame(hwc_rect_t frame) {
+ mDisplayFrame = frame;
+ mDisplay.markGeometryChanged();
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setPlaneAlpha(float alpha) {
+ mPlaneAlpha = alpha;
+ mDisplay.markGeometryChanged();
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setSidebandStream(const native_handle_t* stream) {
+ mSidebandStream = stream;
+ mDisplay.markGeometryChanged();
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setSourceCrop(hwc_frect_t crop) {
+ mSourceCrop = crop;
+ mDisplay.markGeometryChanged();
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setTransform(Transform transform) {
+ mTransform = transform;
+ mDisplay.markGeometryChanged();
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setVisibleRegion(hwc_region_t visible) {
+ mVisibleRegion.resize(visible.numRects);
+ std::copy_n(visible.rects, visible.numRects, mVisibleRegion.begin());
+ mDisplay.markGeometryChanged();
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setZ(uint32_t z) {
+ mZ = z;
+ return Error::None;
+}
+
+void HWC2On1Adapter::Layer::addReleaseFence(int fenceFd) {
+ ALOGV("addReleaseFence %d to layer %" PRIu64, fenceFd, mId);
+ mReleaseFence.add(fenceFd);
+}
+
+const sp<MiniFence>& HWC2On1Adapter::Layer::getReleaseFence() const {
+ return mReleaseFence.get();
+}
+
+void HWC2On1Adapter::Layer::applyState(hwc_layer_1_t& hwc1Layer) {
+ applyCommonState(hwc1Layer);
+ applyCompositionType(hwc1Layer);
+ switch (mCompositionType) {
+ case Composition::SolidColor : applySolidColorState(hwc1Layer); break;
+ case Composition::Sideband : applySidebandState(hwc1Layer); break;
+ default: applyBufferState(hwc1Layer); break;
+ }
+}
+
+static std::string regionStrings(const std::vector<hwc_rect_t>& visibleRegion,
+ const std::vector<hwc_rect_t>& surfaceDamage) {
+ std::string regions;
+ regions += " Visible Region";
+ regions.resize(40, ' ');
+ regions += "Surface Damage\n";
+
+ size_t numPrinted = 0;
+ size_t maxSize = std::max(visibleRegion.size(), surfaceDamage.size());
+ while (numPrinted < maxSize) {
+ std::string line(" ");
+ if (visibleRegion.empty() && numPrinted == 0) {
+ line += "None";
+ } else if (numPrinted < visibleRegion.size()) {
+ line += rectString(visibleRegion[numPrinted]);
+ }
+ line.resize(40, ' ');
+ if (surfaceDamage.empty() && numPrinted == 0) {
+ line += "None";
+ } else if (numPrinted < surfaceDamage.size()) {
+ line += rectString(surfaceDamage[numPrinted]);
+ }
+ line += '\n';
+ regions += line;
+ ++numPrinted;
+ }
+ return regions;
+}
+
+std::string HWC2On1Adapter::Layer::dump() const {
+ std::stringstream output;
+ const char* fill = " ";
+
+ output << fill << to_string(mCompositionType);
+ output << " Layer HWC2/1: " << mId << "/" << mHwc1Id << " ";
+ output << "Z: " << mZ;
+ if (mCompositionType == HWC2::Composition::SolidColor) {
+ output << " " << colorString(mColor);
+ } else if (mCompositionType == HWC2::Composition::Sideband) {
+ output << " Handle: " << mSidebandStream << '\n';
+ } else {
+ output << " Buffer: " << mBuffer.getBuffer() << "/" <<
+ mBuffer.getFence() << '\n';
+ output << fill << " Display frame [LTRB]: " <<
+ rectString(mDisplayFrame) << '\n';
+ output << fill << " Source crop: " <<
+ frectString(mSourceCrop) << '\n';
+ output << fill << " Transform: " << to_string(mTransform);
+ output << " Blend mode: " << to_string(mBlendMode);
+ if (mPlaneAlpha != 1.0f) {
+ output << " Alpha: " <<
+ alphaString(mPlaneAlpha) << '\n';
+ } else {
+ output << '\n';
+ }
+ output << regionStrings(mVisibleRegion, mSurfaceDamage);
+ }
+ return output.str();
+}
+
+static int getHwc1Blending(HWC2::BlendMode blendMode) {
+ switch (blendMode) {
+ case BlendMode::Coverage: return HWC_BLENDING_COVERAGE;
+ case BlendMode::Premultiplied: return HWC_BLENDING_PREMULT;
+ default: return HWC_BLENDING_NONE;
+ }
+}
+
+void HWC2On1Adapter::Layer::applyCommonState(hwc_layer_1_t& hwc1Layer) {
+ auto minorVersion = mDisplay.getDevice().getHwc1MinorVersion();
+ hwc1Layer.blending = getHwc1Blending(mBlendMode);
+ hwc1Layer.displayFrame = mDisplayFrame;
+
+ auto pendingAlpha = mPlaneAlpha;
+ if (minorVersion < 2) {
+ mHasUnsupportedPlaneAlpha = pendingAlpha < 1.0f;
+ } else {
+ hwc1Layer.planeAlpha =
+ static_cast<uint8_t>(255.0f * pendingAlpha + 0.5f);
+ }
+
+ if (minorVersion < 3) {
+ auto pending = mSourceCrop;
+ hwc1Layer.sourceCropi.left =
+ static_cast<int32_t>(std::ceil(pending.left));
+ hwc1Layer.sourceCropi.top =
+ static_cast<int32_t>(std::ceil(pending.top));
+ hwc1Layer.sourceCropi.right =
+ static_cast<int32_t>(std::floor(pending.right));
+ hwc1Layer.sourceCropi.bottom =
+ static_cast<int32_t>(std::floor(pending.bottom));
+ } else {
+ hwc1Layer.sourceCropf = mSourceCrop;
+ }
+
+ hwc1Layer.transform = static_cast<uint32_t>(mTransform);
+
+ auto& hwc1VisibleRegion = hwc1Layer.visibleRegionScreen;
+ hwc1VisibleRegion.numRects = mVisibleRegion.size();
+ hwc_rect_t* rects = mDisplay.GetRects(hwc1VisibleRegion.numRects);
+ hwc1VisibleRegion.rects = rects;
+ for (size_t i = 0; i < mVisibleRegion.size(); i++) {
+ rects[i] = mVisibleRegion[i];
+ }
+}
+
+void HWC2On1Adapter::Layer::applySolidColorState(hwc_layer_1_t& hwc1Layer) {
+ // If the device does not support background color it is likely to make
+ // assumption regarding backgroundColor and handle (both fields occupy
+ // the same location in hwc_layer_1_t union).
+ // To not confuse these devices we don't set background color and we
+ // make sure handle is a null pointer.
+ if (hasUnsupportedBackgroundColor()) {
+ hwc1Layer.handle = nullptr;
+ } else {
+ hwc1Layer.backgroundColor = mColor;
+ }
+}
+
+void HWC2On1Adapter::Layer::applySidebandState(hwc_layer_1_t& hwc1Layer) {
+ hwc1Layer.sidebandStream = mSidebandStream;
+}
+
+void HWC2On1Adapter::Layer::applyBufferState(hwc_layer_1_t& hwc1Layer) {
+ hwc1Layer.handle = mBuffer.getBuffer();
+ hwc1Layer.acquireFenceFd = mBuffer.getFence();
+}
+
+void HWC2On1Adapter::Layer::applyCompositionType(hwc_layer_1_t& hwc1Layer) {
+ // HWC1 never supports color transforms or dataspaces and only sometimes
+ // supports plane alpha (depending on the version). These require us to drop
+ // some or all layers to client composition.
+ if (mHasUnsupportedPlaneAlpha || mDisplay.hasColorTransform() ||
+ hasUnsupportedBackgroundColor()) {
+ hwc1Layer.compositionType = HWC_FRAMEBUFFER;
+ hwc1Layer.flags = HWC_SKIP_LAYER;
+ return;
+ }
+
+ hwc1Layer.flags = 0;
+ switch (mCompositionType) {
+ case Composition::Client:
+ hwc1Layer.compositionType = HWC_FRAMEBUFFER;
+ hwc1Layer.flags |= HWC_SKIP_LAYER;
+ break;
+ case Composition::Device:
+ hwc1Layer.compositionType = HWC_FRAMEBUFFER;
+ break;
+ case Composition::SolidColor:
+ // In theory the following line should work, but since the HWC1
+ // version of SurfaceFlinger never used HWC_BACKGROUND, HWC1
+ // devices may not work correctly. To be on the safe side, we
+ // fall back to client composition.
+ //
+ // hwc1Layer.compositionType = HWC_BACKGROUND;
+ hwc1Layer.compositionType = HWC_FRAMEBUFFER;
+ hwc1Layer.flags |= HWC_SKIP_LAYER;
+ break;
+ case Composition::Cursor:
+ hwc1Layer.compositionType = HWC_FRAMEBUFFER;
+ if (mDisplay.getDevice().getHwc1MinorVersion() >= 4) {
+ hwc1Layer.hints |= HWC_IS_CURSOR_LAYER;
+ }
+ break;
+ case Composition::Sideband:
+ if (mDisplay.getDevice().getHwc1MinorVersion() < 4) {
+ hwc1Layer.compositionType = HWC_SIDEBAND;
+ } else {
+ hwc1Layer.compositionType = HWC_FRAMEBUFFER;
+ hwc1Layer.flags |= HWC_SKIP_LAYER;
+ }
+ break;
+ default:
+ hwc1Layer.compositionType = HWC_FRAMEBUFFER;
+ hwc1Layer.flags |= HWC_SKIP_LAYER;
+ break;
+ }
+ ALOGV("Layer %" PRIu64 " %s set to %d", mId,
+ to_string(mCompositionType).c_str(),
+ hwc1Layer.compositionType);
+ ALOGV_IF(hwc1Layer.flags & HWC_SKIP_LAYER, " and skipping");
+}
+
+// Adapter helpers
+
+void HWC2On1Adapter::populateCapabilities() {
+ if (mHwc1MinorVersion >= 3U) {
+ int supportedTypes = 0;
+ auto result = mHwc1Device->query(mHwc1Device,
+ HWC_DISPLAY_TYPES_SUPPORTED, &supportedTypes);
+ if ((result == 0) && ((supportedTypes & HWC_DISPLAY_VIRTUAL_BIT) != 0)) {
+ ALOGI("Found support for HWC virtual displays");
+ mHwc1SupportsVirtualDisplays = true;
+ }
+ }
+ if (mHwc1MinorVersion >= 4U) {
+ mCapabilities.insert(Capability::SidebandStream);
+ }
+
+ // Check for HWC background color layer support.
+ if (mHwc1MinorVersion >= 1U) {
+ int backgroundColorSupported = 0;
+ auto result = mHwc1Device->query(mHwc1Device,
+ HWC_BACKGROUND_LAYER_SUPPORTED,
+ &backgroundColorSupported);
+ if ((result == 0) && (backgroundColorSupported == 1)) {
+ ALOGV("Found support for HWC background color");
+ mHwc1SupportsBackgroundColor = true;
+ }
+ }
+}
+
+HWC2On1Adapter::Display* HWC2On1Adapter::getDisplay(hwc2_display_t id) {
+ std::unique_lock<std::recursive_timed_mutex> lock(mStateMutex);
+
+ auto display = mDisplays.find(id);
+ if (display == mDisplays.end()) {
+ return nullptr;
+ }
+
+ return display->second.get();
+}
+
+std::tuple<HWC2On1Adapter::Layer*, Error> HWC2On1Adapter::getLayer(
+ hwc2_display_t displayId, hwc2_layer_t layerId) {
+ auto display = getDisplay(displayId);
+ if (!display) {
+ return std::make_tuple(static_cast<Layer*>(nullptr), Error::BadDisplay);
+ }
+
+ auto layerEntry = mLayers.find(layerId);
+ if (layerEntry == mLayers.end()) {
+ return std::make_tuple(static_cast<Layer*>(nullptr), Error::BadLayer);
+ }
+
+ auto layer = layerEntry->second;
+ if (layer->getDisplay().getId() != displayId) {
+ return std::make_tuple(static_cast<Layer*>(nullptr), Error::BadLayer);
+ }
+ return std::make_tuple(layer.get(), Error::None);
+}
+
+void HWC2On1Adapter::populatePrimary() {
+ std::unique_lock<std::recursive_timed_mutex> lock(mStateMutex);
+
+ auto display = std::make_shared<Display>(*this, HWC2::DisplayType::Physical);
+ mHwc1DisplayMap[HWC_DISPLAY_PRIMARY] = display->getId();
+ display->setHwc1Id(HWC_DISPLAY_PRIMARY);
+ display->populateConfigs();
+ mDisplays.emplace(display->getId(), std::move(display));
+}
+
+bool HWC2On1Adapter::prepareAllDisplays() {
+ ATRACE_CALL();
+
+ std::unique_lock<std::recursive_timed_mutex> lock(mStateMutex);
+
+ for (const auto& displayPair : mDisplays) {
+ auto& display = displayPair.second;
+ if (!display->prepare()) {
+ return false;
+ }
+ }
+
+ if (mHwc1DisplayMap.count(HWC_DISPLAY_PRIMARY) == 0) {
+ ALOGE("prepareAllDisplays: Unable to find primary HWC1 display");
+ return false;
+ }
+
+ // Build an array of hwc_display_contents_1 to call prepare() on HWC1.
+ mHwc1Contents.clear();
+
+ // Always push the primary display
+ auto primaryDisplayId = mHwc1DisplayMap[HWC_DISPLAY_PRIMARY];
+ auto& primaryDisplay = mDisplays[primaryDisplayId];
+ mHwc1Contents.push_back(primaryDisplay->getDisplayContents());
+
+ // Push the external display, if present
+ if (mHwc1DisplayMap.count(HWC_DISPLAY_EXTERNAL) != 0) {
+ auto externalDisplayId = mHwc1DisplayMap[HWC_DISPLAY_EXTERNAL];
+ auto& externalDisplay = mDisplays[externalDisplayId];
+ mHwc1Contents.push_back(externalDisplay->getDisplayContents());
+ } else {
+ // Even if an external display isn't present, we still need to send
+ // at least two displays down to HWC1
+ mHwc1Contents.push_back(nullptr);
+ }
+
+ // Push the hardware virtual display, if supported and present
+ if (mHwc1MinorVersion >= 3) {
+ if (mHwc1DisplayMap.count(HWC_DISPLAY_VIRTUAL) != 0) {
+ auto virtualDisplayId = mHwc1DisplayMap[HWC_DISPLAY_VIRTUAL];
+ auto& virtualDisplay = mDisplays[virtualDisplayId];
+ mHwc1Contents.push_back(virtualDisplay->getDisplayContents());
+ } else {
+ mHwc1Contents.push_back(nullptr);
+ }
+ }
+
+ for (auto& displayContents : mHwc1Contents) {
+ if (!displayContents) {
+ continue;
+ }
+
+ ALOGV("Display %zd layers:", mHwc1Contents.size() - 1);
+ for (size_t l = 0; l < displayContents->numHwLayers; ++l) {
+ auto& layer = displayContents->hwLayers[l];
+ ALOGV(" %zd: %d", l, layer.compositionType);
+ }
+ }
+
+ ALOGV("Calling HWC1 prepare");
+ {
+ ATRACE_NAME("HWC1 prepare");
+ mHwc1Device->prepare(mHwc1Device, mHwc1Contents.size(),
+ mHwc1Contents.data());
+ }
+
+ for (size_t c = 0; c < mHwc1Contents.size(); ++c) {
+ auto& contents = mHwc1Contents[c];
+ if (!contents) {
+ continue;
+ }
+ ALOGV("Display %zd layers:", c);
+ for (size_t l = 0; l < contents->numHwLayers; ++l) {
+ ALOGV(" %zd: %d", l, contents->hwLayers[l].compositionType);
+ }
+ }
+
+ // Return the received contents to their respective displays
+ for (size_t hwc1Id = 0; hwc1Id < mHwc1Contents.size(); ++hwc1Id) {
+ if (mHwc1Contents[hwc1Id] == nullptr) {
+ continue;
+ }
+
+ auto displayId = mHwc1DisplayMap[hwc1Id];
+ auto& display = mDisplays[displayId];
+ display->generateChanges();
+ }
+
+ return true;
+}
+
+void dumpHWC1Message(hwc_composer_device_1* device, size_t numDisplays,
+ hwc_display_contents_1_t** displays) {
+ ALOGV("*****************************");
+ size_t displayId = 0;
+ while (displayId < numDisplays) {
+ hwc_display_contents_1_t* display = displays[displayId];
+
+ ALOGV("hwc_display_contents_1_t[%zu] @0x%p", displayId, display);
+ if (display == nullptr) {
+ displayId++;
+ continue;
+ }
+ ALOGV(" retirefd:0x%08x", display->retireFenceFd);
+ ALOGV(" outbuf :0x%p", display->outbuf);
+ ALOGV(" outbuffd:0x%08x", display->outbufAcquireFenceFd);
+ ALOGV(" flags :0x%08x", display->flags);
+ for(size_t layerId=0 ; layerId < display->numHwLayers ; layerId++) {
+ hwc_layer_1_t& layer = display->hwLayers[layerId];
+ ALOGV(" Layer[%zu]:", layerId);
+ ALOGV(" composition : 0x%08x", layer.compositionType);
+ ALOGV(" hints : 0x%08x", layer.hints);
+ ALOGV(" flags : 0x%08x", layer.flags);
+ ALOGV(" handle : 0x%p", layer.handle);
+ ALOGV(" transform : 0x%08x", layer.transform);
+ ALOGV(" blending : 0x%08x", layer.blending);
+ ALOGV(" sourceCropf : %f, %f, %f, %f",
+ layer.sourceCropf.left,
+ layer.sourceCropf.top,
+ layer.sourceCropf.right,
+ layer.sourceCropf.bottom);
+ ALOGV(" displayFrame : %d, %d, %d, %d",
+ layer.displayFrame.left,
+ layer.displayFrame.left,
+ layer.displayFrame.left,
+ layer.displayFrame.left);
+ hwc_region_t& visReg = layer.visibleRegionScreen;
+ ALOGV(" visibleRegionScreen: #0x%08zx[@0x%p]",
+ visReg.numRects,
+ visReg.rects);
+ for (size_t visRegId=0; visRegId < visReg.numRects ; visRegId++) {
+ if (layer.visibleRegionScreen.rects == nullptr) {
+ ALOGV(" null");
+ } else {
+ ALOGV(" visibleRegionScreen[%zu] %d, %d, %d, %d",
+ visRegId,
+ visReg.rects[visRegId].left,
+ visReg.rects[visRegId].top,
+ visReg.rects[visRegId].right,
+ visReg.rects[visRegId].bottom);
+ }
+ }
+ ALOGV(" acquireFenceFd : 0x%08x", layer.acquireFenceFd);
+ ALOGV(" releaseFenceFd : 0x%08x", layer.releaseFenceFd);
+ ALOGV(" planeAlpha : 0x%08x", layer.planeAlpha);
+ if (getMinorVersion(device) < 5)
+ continue;
+ ALOGV(" surfaceDamage : #0x%08zx[@0x%p]",
+ layer.surfaceDamage.numRects,
+ layer.surfaceDamage.rects);
+ for (size_t sdId=0; sdId < layer.surfaceDamage.numRects ; sdId++) {
+ if (layer.surfaceDamage.rects == nullptr) {
+ ALOGV(" null");
+ } else {
+ ALOGV(" surfaceDamage[%zu] %d, %d, %d, %d",
+ sdId,
+ layer.surfaceDamage.rects[sdId].left,
+ layer.surfaceDamage.rects[sdId].top,
+ layer.surfaceDamage.rects[sdId].right,
+ layer.surfaceDamage.rects[sdId].bottom);
+ }
+ }
+ }
+ displayId++;
+ }
+ ALOGV("-----------------------------");
+}
+
+Error HWC2On1Adapter::setAllDisplays() {
+ ATRACE_CALL();
+
+ std::unique_lock<std::recursive_timed_mutex> lock(mStateMutex);
+
+ // Make sure we're ready to validate
+ for (size_t hwc1Id = 0; hwc1Id < mHwc1Contents.size(); ++hwc1Id) {
+ if (mHwc1Contents[hwc1Id] == nullptr) {
+ continue;
+ }
+
+ auto displayId = mHwc1DisplayMap[hwc1Id];
+ auto& display = mDisplays[displayId];
+ Error error = display->set(*mHwc1Contents[hwc1Id]);
+ if (error != Error::None) {
+ ALOGE("setAllDisplays: Failed to set display %zd: %s", hwc1Id,
+ to_string(error).c_str());
+ return error;
+ }
+ }
+
+ ALOGV("Calling HWC1 set");
+ {
+ ATRACE_NAME("HWC1 set");
+ //dumpHWC1Message(mHwc1Device, mHwc1Contents.size(), mHwc1Contents.data());
+ mHwc1Device->set(mHwc1Device, mHwc1Contents.size(),
+ mHwc1Contents.data());
+ }
+
+ // Add retire and release fences
+ for (size_t hwc1Id = 0; hwc1Id < mHwc1Contents.size(); ++hwc1Id) {
+ if (mHwc1Contents[hwc1Id] == nullptr) {
+ continue;
+ }
+
+ auto displayId = mHwc1DisplayMap[hwc1Id];
+ auto& display = mDisplays[displayId];
+ auto retireFenceFd = mHwc1Contents[hwc1Id]->retireFenceFd;
+ ALOGV("setAllDisplays: Adding retire fence %d to display %zd",
+ retireFenceFd, hwc1Id);
+ display->addRetireFence(mHwc1Contents[hwc1Id]->retireFenceFd);
+ display->addReleaseFences(*mHwc1Contents[hwc1Id]);
+ }
+
+ return Error::None;
+}
+
+void HWC2On1Adapter::hwc1Invalidate() {
+ ALOGV("Received hwc1Invalidate");
+
+ std::unique_lock<std::recursive_timed_mutex> lock(mStateMutex);
+
+ // If the HWC2-side callback hasn't been registered yet, buffer this until
+ // it is registered.
+ if (mCallbacks.count(Callback::Refresh) == 0) {
+ mHasPendingInvalidate = true;
+ return;
+ }
+
+ const auto& callbackInfo = mCallbacks[Callback::Refresh];
+ std::vector<hwc2_display_t> displays;
+ for (const auto& displayPair : mDisplays) {
+ displays.emplace_back(displayPair.first);
+ }
+
+ // Call back without the state lock held.
+ lock.unlock();
+
+ auto refresh = reinterpret_cast<HWC2_PFN_REFRESH>(callbackInfo.pointer);
+ for (auto display : displays) {
+ refresh(callbackInfo.data, display);
+ }
+}
+
+void HWC2On1Adapter::hwc1Vsync(int hwc1DisplayId, int64_t timestamp) {
+ ALOGV("Received hwc1Vsync(%d, %" PRId64 ")", hwc1DisplayId, timestamp);
+
+ std::unique_lock<std::recursive_timed_mutex> lock(mStateMutex);
+
+ // If the HWC2-side callback hasn't been registered yet, buffer this until
+ // it is registered.
+ if (mCallbacks.count(Callback::Vsync) == 0) {
+ mPendingVsyncs.emplace_back(hwc1DisplayId, timestamp);
+ return;
+ }
+
+ if (mHwc1DisplayMap.count(hwc1DisplayId) == 0) {
+ ALOGE("hwc1Vsync: Couldn't find display for HWC1 id %d", hwc1DisplayId);
+ return;
+ }
+
+ const auto& callbackInfo = mCallbacks[Callback::Vsync];
+ auto displayId = mHwc1DisplayMap[hwc1DisplayId];
+
+ // Call back without the state lock held.
+ lock.unlock();
+
+ auto vsync = reinterpret_cast<HWC2_PFN_VSYNC>(callbackInfo.pointer);
+ vsync(callbackInfo.data, displayId, timestamp);
+}
+
+void HWC2On1Adapter::hwc1Hotplug(int hwc1DisplayId, int connected) {
+ ALOGV("Received hwc1Hotplug(%d, %d)", hwc1DisplayId, connected);
+
+ if (hwc1DisplayId != HWC_DISPLAY_EXTERNAL) {
+ ALOGE("hwc1Hotplug: Received hotplug for non-external display");
+ return;
+ }
+
+ std::unique_lock<std::recursive_timed_mutex> lock(mStateMutex);
+
+ // If the HWC2-side callback hasn't been registered yet, buffer this until
+ // it is registered
+ if (mCallbacks.count(Callback::Hotplug) == 0) {
+ mPendingHotplugs.emplace_back(hwc1DisplayId, connected);
+ return;
+ }
+
+ hwc2_display_t displayId = UINT64_MAX;
+ if (mHwc1DisplayMap.count(hwc1DisplayId) == 0) {
+ if (connected == 0) {
+ ALOGW("hwc1Hotplug: Received disconnect for unconnected display");
+ return;
+ }
+
+ // Create a new display on connect
+ auto display = std::make_shared<HWC2On1Adapter::Display>(*this,
+ HWC2::DisplayType::Physical);
+ display->setHwc1Id(HWC_DISPLAY_EXTERNAL);
+ display->populateConfigs();
+ displayId = display->getId();
+ mHwc1DisplayMap[HWC_DISPLAY_EXTERNAL] = displayId;
+ mDisplays.emplace(displayId, std::move(display));
+ } else {
+ if (connected != 0) {
+ ALOGW("hwc1Hotplug: Received connect for previously connected "
+ "display");
+ return;
+ }
+
+ // Disconnect an existing display
+ displayId = mHwc1DisplayMap[hwc1DisplayId];
+ mHwc1DisplayMap.erase(HWC_DISPLAY_EXTERNAL);
+ mDisplays.erase(displayId);
+ }
+
+ const auto& callbackInfo = mCallbacks[Callback::Hotplug];
+
+ // Call back without the state lock held
+ lock.unlock();
+
+ auto hotplug = reinterpret_cast<HWC2_PFN_HOTPLUG>(callbackInfo.pointer);
+ auto hwc2Connected = (connected == 0) ?
+ HWC2::Connection::Disconnected : HWC2::Connection::Connected;
+ hotplug(callbackInfo.data, displayId, static_cast<int32_t>(hwc2Connected));
+}
+} // namespace android
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-10-23 05:19:01 +0000