Merge changes I8cc3ce7d,Ie1a7bfd2,Id472ed4e into nyc-dev
* changes:
libgui: Allow for pending releases in GLConsumer
SF: HWC2 C++ shim
SF: HWC2On1Adapter
diff --git a/include/gui/GLConsumer.h b/include/gui/GLConsumer.h
index 0e4acee..61f631f 100644
--- a/include/gui/GLConsumer.h
+++ b/include/gui/GLConsumer.h
@@ -253,10 +253,25 @@
static bool isExternalFormat(PixelFormat format);
+ struct PendingRelease {
+ PendingRelease() : isPending(false), currentTexture(-1),
+ graphicBuffer(), display(nullptr), fence(nullptr) {}
+
+ bool isPending;
+ int currentTexture;
+ sp<GraphicBuffer> graphicBuffer;
+ EGLDisplay display;
+ EGLSyncKHR fence;
+ };
+
// This releases the buffer in the slot referenced by mCurrentTexture,
// then updates state to refer to the BufferItem, which must be a
- // newly-acquired buffer.
- status_t updateAndReleaseLocked(const BufferItem& item);
+ // newly-acquired buffer. If pendingRelease is not null, the parameters
+ // which would have been passed to releaseBufferLocked upon the successful
+ // completion of the method will instead be returned to the caller, so that
+ // it may call releaseBufferLocked itself later.
+ status_t updateAndReleaseLocked(const BufferItem& item,
+ PendingRelease* pendingRelease = nullptr);
// Binds mTexName and the current buffer to mTexTarget. Uses
// mCurrentTexture if it's set, mCurrentTextureImage if not. If the
diff --git a/libs/gui/GLConsumer.cpp b/libs/gui/GLConsumer.cpp
index 55059dd..149f5bd 100644
--- a/libs/gui/GLConsumer.cpp
+++ b/libs/gui/GLConsumer.cpp
@@ -370,7 +370,8 @@
return err;
}
-status_t GLConsumer::updateAndReleaseLocked(const BufferItem& item)
+status_t GLConsumer::updateAndReleaseLocked(const BufferItem& item,
+ PendingRelease* pendingRelease)
{
status_t err = NO_ERROR;
@@ -432,14 +433,23 @@
// release old buffer
if (mCurrentTexture != BufferQueue::INVALID_BUFFER_SLOT) {
- status_t status = releaseBufferLocked(
- mCurrentTexture, mCurrentTextureImage->graphicBuffer(),
- mEglDisplay, mEglSlots[mCurrentTexture].mEglFence);
- if (status < NO_ERROR) {
- GLC_LOGE("updateAndRelease: failed to release buffer: %s (%d)",
- strerror(-status), status);
- err = status;
- // keep going, with error raised [?]
+ if (pendingRelease == nullptr) {
+ status_t status = releaseBufferLocked(
+ mCurrentTexture, mCurrentTextureImage->graphicBuffer(),
+ mEglDisplay, mEglSlots[mCurrentTexture].mEglFence);
+ if (status < NO_ERROR) {
+ GLC_LOGE("updateAndRelease: failed to release buffer: %s (%d)",
+ strerror(-status), status);
+ err = status;
+ // keep going, with error raised [?]
+ }
+ } else {
+ pendingRelease->currentTexture = mCurrentTexture;
+ pendingRelease->graphicBuffer =
+ mCurrentTextureImage->graphicBuffer();
+ pendingRelease->display = mEglDisplay;
+ pendingRelease->fence = mEglSlots[mCurrentTexture].mEglFence;
+ pendingRelease->isPending = true;
}
}
diff --git a/services/surfaceflinger/Android.mk b/services/surfaceflinger/Android.mk
index d70b069..3d71aa8 100644
--- a/services/surfaceflinger/Android.mk
+++ b/services/surfaceflinger/Android.mk
@@ -19,6 +19,8 @@
SurfaceFlingerConsumer.cpp \
Transform.cpp \
DisplayHardware/FramebufferSurface.cpp \
+ DisplayHardware/HWC2.cpp \
+ DisplayHardware/HWC2On1Adapter.cpp \
DisplayHardware/HWComposer.cpp \
DisplayHardware/PowerHAL.cpp \
DisplayHardware/VirtualDisplaySurface.cpp \
diff --git a/services/surfaceflinger/DisplayHardware/FloatRect.h b/services/surfaceflinger/DisplayHardware/FloatRect.h
index 3b75cc0..9ad1040 100644
--- a/services/surfaceflinger/DisplayHardware/FloatRect.h
+++ b/services/surfaceflinger/DisplayHardware/FloatRect.h
@@ -17,6 +17,7 @@
#ifndef ANDROID_SF_FLOAT_RECT
#define ANDROID_SF_FLOAT_RECT
+#include <ui/Rect.h>
#include <utils/TypeHelpers.h>
namespace android {
diff --git a/services/surfaceflinger/DisplayHardware/HWC2.cpp b/services/surfaceflinger/DisplayHardware/HWC2.cpp
new file mode 100644
index 0000000..0e97a53
--- /dev/null
+++ b/services/surfaceflinger/DisplayHardware/HWC2.cpp
@@ -0,0 +1,992 @@
+/*
+ * 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.
+ */
+
+// #define LOG_NDEBUG 0
+
+#undef LOG_TAG
+#define LOG_TAG "HWC2"
+#define ATRACE_TAG ATRACE_TAG_GRAPHICS
+
+#include "HWC2.h"
+
+#include "FloatRect.h"
+
+#include <ui/Fence.h>
+#include <ui/GraphicBuffer.h>
+#include <ui/Region.h>
+
+#include <android/configuration.h>
+
+#include <inttypes.h>
+
+extern "C" {
+ static void hotplug_hook(hwc2_callback_data_t callbackData,
+ hwc2_display_t displayId, int32_t intConnected) {
+ auto device = static_cast<HWC2::Device*>(callbackData);
+ auto display = device->getDisplayById(displayId);
+ if (display) {
+ auto connected = static_cast<HWC2::Connection>(intConnected);
+ device->callHotplug(std::move(display), connected);
+ } else {
+ ALOGE("Hotplug callback called with unknown display %" PRIu64,
+ displayId);
+ }
+ }
+
+ static void refresh_hook(hwc2_callback_data_t callbackData,
+ hwc2_display_t displayId) {
+ auto device = static_cast<HWC2::Device*>(callbackData);
+ auto display = device->getDisplayById(displayId);
+ if (display) {
+ device->callRefresh(std::move(display));
+ } else {
+ ALOGE("Refresh callback called with unknown display %" PRIu64,
+ displayId);
+ }
+ }
+
+ static void vsync_hook(hwc2_callback_data_t callbackData,
+ hwc2_display_t displayId, int64_t timestamp) {
+ auto device = static_cast<HWC2::Device*>(callbackData);
+ auto display = device->getDisplayById(displayId);
+ if (display) {
+ device->callVsync(std::move(display), timestamp);
+ } else {
+ ALOGE("Vsync callback called with unknown display %" PRIu64,
+ displayId);
+ }
+ }
+}
+
+using android::Fence;
+using android::FloatRect;
+using android::GraphicBuffer;
+using android::Rect;
+using android::Region;
+using android::sp;
+
+namespace HWC2 {
+
+// Device methods
+
+Device::Device(hwc2_device_t* device)
+ : mHwcDevice(device),
+ mCreateVirtualDisplay(nullptr),
+ mDestroyVirtualDisplay(nullptr),
+ mDump(nullptr),
+ mGetMaxVirtualDisplayCount(nullptr),
+ mRegisterCallback(nullptr),
+ mAcceptDisplayChanges(nullptr),
+ mCreateLayer(nullptr),
+ mDestroyLayer(nullptr),
+ mGetActiveConfig(nullptr),
+ mGetChangedCompositionTypes(nullptr),
+ mGetDisplayAttribute(nullptr),
+ mGetDisplayConfigs(nullptr),
+ mGetDisplayName(nullptr),
+ mGetDisplayRequests(nullptr),
+ mGetDisplayType(nullptr),
+ mGetDozeSupport(nullptr),
+ mGetReleaseFences(nullptr),
+ mPresentDisplay(nullptr),
+ mSetActiveConfig(nullptr),
+ mSetClientTarget(nullptr),
+ mSetOutputBuffer(nullptr),
+ mSetPowerMode(nullptr),
+ mSetVsyncEnabled(nullptr),
+ mValidateDisplay(nullptr),
+ mSetCursorPosition(nullptr),
+ mSetLayerBuffer(nullptr),
+ mSetLayerSurfaceDamage(nullptr),
+ mSetLayerBlendMode(nullptr),
+ mSetLayerColor(nullptr),
+ mSetLayerCompositionType(nullptr),
+ mSetLayerDisplayFrame(nullptr),
+ mSetLayerPlaneAlpha(nullptr),
+ mSetLayerSidebandStream(nullptr),
+ mSetLayerSourceCrop(nullptr),
+ mSetLayerTransform(nullptr),
+ mSetLayerVisibleRegion(nullptr),
+ mSetLayerZOrder(nullptr),
+ mCapabilities(),
+ mDisplays(),
+ mHotplug(),
+ mPendingHotplugs(),
+ mRefresh(),
+ mPendingRefreshes(),
+ mVsync(),
+ mPendingVsyncs()
+{
+ loadCapabilities();
+ loadFunctionPointers();
+ registerCallbacks();
+}
+
+Device::~Device()
+{
+ if (mHwcDevice == nullptr) {
+ return;
+ }
+
+ for (auto element : mDisplays) {
+ auto display = element.second;
+
+ DisplayType displayType = HWC2::DisplayType::Invalid;
+ auto error = display->getType(&displayType);
+ if (error != Error::None) {
+ ALOGE("~Device: Failed to determine type of display %" PRIu64
+ ": %s (%d)", display->getId(), to_string(error).c_str(),
+ static_cast<int32_t>(error));
+ continue;
+ }
+
+ if (displayType == HWC2::DisplayType::Physical) {
+ error = display->setVsyncEnabled(HWC2::Vsync::Disable);
+ if (error != Error::None) {
+ ALOGE("~Device: Failed to disable vsync for display %" PRIu64
+ ": %s (%d)", display->getId(), to_string(error).c_str(),
+ static_cast<int32_t>(error));
+ }
+ }
+ }
+
+ hwc2_close(mHwcDevice);
+}
+
+// Required by HWC2 device
+
+std::string Device::dump() const
+{
+ uint32_t numBytes = 0;
+ mDump(mHwcDevice, &numBytes, nullptr);
+
+ std::vector<char> buffer(numBytes);
+ mDump(mHwcDevice, &numBytes, buffer.data());
+
+ return std::string(buffer.data(), buffer.size());
+}
+
+uint32_t Device::getMaxVirtualDisplayCount() const
+{
+ return mGetMaxVirtualDisplayCount(mHwcDevice);
+}
+
+Error Device::createVirtualDisplay(uint32_t width, uint32_t height,
+ std::shared_ptr<Display>* outDisplay)
+{
+ ALOGI("Creating virtual display");
+
+ hwc2_display_t displayId = 0;
+ int32_t intError = mCreateVirtualDisplay(mHwcDevice, width, height,
+ &displayId);
+ auto error = static_cast<Error>(intError);
+ if (error != Error::None) {
+ return error;
+ }
+
+ ALOGI("Created virtual display");
+ *outDisplay = getDisplayById(displayId);
+ (*outDisplay)->setVirtual();
+ return Error::None;
+}
+
+void Device::registerHotplugCallback(HotplugCallback hotplug)
+{
+ ALOGV("registerHotplugCallback");
+ mHotplug = hotplug;
+ for (auto& pending : mPendingHotplugs) {
+ auto& display = pending.first;
+ auto connected = pending.second;
+ ALOGV("Sending pending hotplug(%" PRIu64 ", %s)", display->getId(),
+ to_string(connected).c_str());
+ mHotplug(std::move(display), connected);
+ }
+}
+
+void Device::registerRefreshCallback(RefreshCallback refresh)
+{
+ mRefresh = refresh;
+ for (auto& pending : mPendingRefreshes) {
+ mRefresh(std::move(pending));
+ }
+}
+
+void Device::registerVsyncCallback(VsyncCallback vsync)
+{
+ mVsync = vsync;
+ for (auto& pending : mPendingVsyncs) {
+ auto& display = pending.first;
+ auto timestamp = pending.second;
+ mVsync(std::move(display), timestamp);
+ }
+}
+
+// For use by Device callbacks
+
+void Device::callHotplug(std::shared_ptr<Display> display, Connection connected)
+{
+ if (connected == Connection::Connected) {
+ if (!display->isConnected()) {
+ display->loadConfigs();
+ display->setConnected(true);
+ }
+ } else {
+ display->setConnected(false);
+ mDisplays.erase(display->getId());
+ }
+
+ if (mHotplug) {
+ mHotplug(std::move(display), connected);
+ } else {
+ ALOGV("callHotplug called, but no valid callback registered, storing");
+ mPendingHotplugs.emplace_back(std::move(display), connected);
+ }
+}
+
+void Device::callRefresh(std::shared_ptr<Display> display)
+{
+ if (mRefresh) {
+ mRefresh(std::move(display));
+ } else {
+ ALOGV("callRefresh called, but no valid callback registered, storing");
+ mPendingRefreshes.emplace_back(std::move(display));
+ }
+}
+
+void Device::callVsync(std::shared_ptr<Display> display, nsecs_t timestamp)
+{
+ if (mVsync) {
+ mVsync(std::move(display), timestamp);
+ } else {
+ ALOGV("callVsync called, but no valid callback registered, storing");
+ mPendingVsyncs.emplace_back(std::move(display), timestamp);
+ }
+}
+
+// Other Device methods
+
+std::shared_ptr<Display> Device::getDisplayById(hwc2_display_t id) {
+ if (mDisplays.count(id) != 0) {
+ return mDisplays.at(id);
+ }
+
+ auto display = std::make_shared<Display>(*this, id);
+ mDisplays.emplace(id, display);
+ return display;
+}
+
+// Device initialization methods
+
+void Device::loadCapabilities()
+{
+ static_assert(sizeof(Capability) == sizeof(int32_t),
+ "Capability size has changed");
+ uint32_t numCapabilities = 0;
+ mHwcDevice->getCapabilities(mHwcDevice, &numCapabilities, nullptr);
+ mCapabilities.resize(numCapabilities);
+ auto asInt = reinterpret_cast<int32_t*>(mCapabilities.data());
+ mHwcDevice->getCapabilities(mHwcDevice, &numCapabilities, asInt);
+}
+
+void Device::loadFunctionPointers()
+{
+ // For all of these early returns, we log an error message inside
+ // loadFunctionPointer specifying which function failed to load
+
+ // Display function pointers
+ if(!loadFunctionPointer(FunctionDescriptor::CreateVirtualDisplay,
+ mCreateVirtualDisplay)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::DestroyVirtualDisplay,
+ mDestroyVirtualDisplay)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::Dump, mDump)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::GetMaxVirtualDisplayCount,
+ mGetMaxVirtualDisplayCount)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::RegisterCallback,
+ mRegisterCallback)) return;
+
+ // Device function pointers
+ if(!loadFunctionPointer(FunctionDescriptor::AcceptDisplayChanges,
+ mAcceptDisplayChanges)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::CreateLayer,
+ mCreateLayer)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::DestroyLayer,
+ mDestroyLayer)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::GetActiveConfig,
+ mGetActiveConfig)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::GetChangedCompositionTypes,
+ mGetChangedCompositionTypes)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::GetDisplayAttribute,
+ mGetDisplayAttribute)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::GetDisplayConfigs,
+ mGetDisplayConfigs)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::GetDisplayName,
+ mGetDisplayName)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::GetDisplayRequests,
+ mGetDisplayRequests)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::GetDisplayType,
+ mGetDisplayType)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::GetDozeSupport,
+ mGetDozeSupport)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::GetReleaseFences,
+ mGetReleaseFences)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::PresentDisplay,
+ mPresentDisplay)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::SetActiveConfig,
+ mSetActiveConfig)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::SetClientTarget,
+ mSetClientTarget)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::SetOutputBuffer,
+ mSetOutputBuffer)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::SetPowerMode,
+ mSetPowerMode)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::SetVsyncEnabled,
+ mSetVsyncEnabled)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::ValidateDisplay,
+ mValidateDisplay)) return;
+
+ // Layer function pointers
+ if(!loadFunctionPointer(FunctionDescriptor::SetCursorPosition,
+ mSetCursorPosition)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::SetLayerBuffer,
+ mSetLayerBuffer)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::SetLayerSurfaceDamage,
+ mSetLayerSurfaceDamage)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::SetLayerBlendMode,
+ mSetLayerBlendMode)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::SetLayerColor,
+ mSetLayerColor)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::SetLayerCompositionType,
+ mSetLayerCompositionType)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::SetLayerDisplayFrame,
+ mSetLayerDisplayFrame)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::SetLayerPlaneAlpha,
+ mSetLayerPlaneAlpha)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::SetLayerSidebandStream,
+ mSetLayerSidebandStream)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::SetLayerSourceCrop,
+ mSetLayerSourceCrop)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::SetLayerTransform,
+ mSetLayerTransform)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::SetLayerVisibleRegion,
+ mSetLayerVisibleRegion)) return;
+ if(!loadFunctionPointer(FunctionDescriptor::SetLayerZOrder,
+ mSetLayerZOrder)) return;
+}
+
+void Device::registerCallbacks()
+{
+ registerCallback<HWC2_PFN_HOTPLUG>(Callback::Hotplug, hotplug_hook);
+ registerCallback<HWC2_PFN_REFRESH>(Callback::Refresh, refresh_hook);
+ registerCallback<HWC2_PFN_VSYNC>(Callback::Vsync, vsync_hook);
+}
+
+
+// For use by Display
+
+void Device::destroyVirtualDisplay(hwc2_display_t display)
+{
+ ALOGI("Destroying virtual display");
+ int32_t intError = mDestroyVirtualDisplay(mHwcDevice, display);
+ auto error = static_cast<Error>(intError);
+ ALOGE_IF(error != Error::None, "destroyVirtualDisplay(%" PRIu64 ") failed:"
+ " %s (%d)", display, to_string(error).c_str(), intError);
+}
+
+// Display methods
+
+Display::Display(Device& device, hwc2_display_t id)
+ : mDevice(device),
+ mId(id),
+ mIsConnected(false),
+ mIsVirtual(false)
+{
+ ALOGV("Created display %" PRIu64, id);
+}
+
+Display::~Display()
+{
+ ALOGV("Destroyed display %" PRIu64, mId);
+ if (mIsVirtual) {
+ mDevice.destroyVirtualDisplay(mId);
+ }
+}
+
+Display::Config::Config(Display& display, hwc2_config_t id)
+ : mDisplay(display),
+ mId(id),
+ mWidth(-1),
+ mHeight(-1),
+ mVsyncPeriod(-1),
+ mDpiX(-1),
+ mDpiY(-1) {}
+
+Display::Config::Builder::Builder(Display& display, hwc2_config_t id)
+ : mConfig(new Config(display, id)) {}
+
+float Display::Config::Builder::getDefaultDensity() {
+ // Default density is based on TVs: 1080p displays get XHIGH density, lower-
+ // resolution displays get TV density. Maybe eventually we'll need to update
+ // it for 4k displays, though hopefully those will just report accurate DPI
+ // information to begin with. This is also used for virtual displays and
+ // older HWC implementations, so be careful about orientation.
+
+ auto longDimension = std::max(mConfig->mWidth, mConfig->mHeight);
+ if (longDimension >= 1080) {
+ return ACONFIGURATION_DENSITY_XHIGH;
+ } else {
+ return ACONFIGURATION_DENSITY_TV;
+ }
+}
+
+// Required by HWC2 display
+
+Error Display::acceptChanges()
+{
+ int32_t intError = mDevice.mAcceptDisplayChanges(mDevice.mHwcDevice, mId);
+ return static_cast<Error>(intError);
+}
+
+Error Display::createLayer(std::shared_ptr<Layer>* outLayer)
+{
+ hwc2_layer_t layerId = 0;
+ int32_t intError = mDevice.mCreateLayer(mDevice.mHwcDevice, mId, &layerId);
+ auto error = static_cast<Error>(intError);
+ if (error != Error::None) {
+ return error;
+ }
+
+ auto layer = std::make_shared<Layer>(shared_from_this(), layerId);
+ mLayers.emplace(layerId, layer);
+ *outLayer = std::move(layer);
+ return Error::None;
+}
+
+Error Display::getActiveConfig(
+ std::shared_ptr<const Display::Config>* outConfig) const
+{
+ ALOGV("[%" PRIu64 "] getActiveConfig", mId);
+ hwc2_config_t configId = 0;
+ int32_t intError = mDevice.mGetActiveConfig(mDevice.mHwcDevice, mId,
+ &configId);
+ auto error = static_cast<Error>(intError);
+
+ if (error != Error::None) {
+ return error;
+ }
+
+ if (mConfigs.count(configId) != 0) {
+ *outConfig = mConfigs.at(configId);
+ } else {
+ ALOGE("[%" PRIu64 "] getActiveConfig returned unknown config %u", mId,
+ configId);
+ // Return no error, but the caller needs to check for a null pointer to
+ // detect this case
+ *outConfig = nullptr;
+ }
+
+ return Error::None;
+}
+
+Error Display::getChangedCompositionTypes(
+ std::unordered_map<std::shared_ptr<Layer>, Composition>* outTypes)
+{
+ uint32_t numElements = 0;
+ int32_t intError = mDevice.mGetChangedCompositionTypes(mDevice.mHwcDevice,
+ mId, &numElements, nullptr, nullptr);
+ auto error = static_cast<Error>(intError);
+ if (error != Error::None) {
+ return error;
+ }
+
+ std::vector<hwc2_layer_t> layerIds(numElements);
+ std::vector<int32_t> types(numElements);
+ intError = mDevice.mGetChangedCompositionTypes(mDevice.mHwcDevice, mId,
+ &numElements, layerIds.data(), types.data());
+ error = static_cast<Error>(intError);
+ if (error != Error::None) {
+ return error;
+ }
+
+ outTypes->clear();
+ outTypes->reserve(numElements);
+ for (uint32_t element = 0; element < numElements; ++element) {
+ auto layer = getLayerById(layerIds[element]);
+ if (layer) {
+ auto type = static_cast<Composition>(types[element]);
+ ALOGV("getChangedCompositionTypes: adding %" PRIu64 " %s",
+ layer->getId(), to_string(type).c_str());
+ outTypes->emplace(layer, type);
+ } else {
+ ALOGE("getChangedCompositionTypes: invalid layer %" PRIu64 " found"
+ " on display %" PRIu64, layerIds[element], mId);
+ }
+ }
+
+ return Error::None;
+}
+
+std::vector<std::shared_ptr<const Display::Config>> Display::getConfigs() const
+{
+ std::vector<std::shared_ptr<const Config>> configs;
+ for (const auto& element : mConfigs) {
+ configs.emplace_back(element.second);
+ }
+ return configs;
+}
+
+Error Display::getName(std::string* outName) const
+{
+ uint32_t size;
+ int32_t intError = mDevice.mGetDisplayName(mDevice.mHwcDevice, mId, &size,
+ nullptr);
+ auto error = static_cast<Error>(intError);
+ if (error != Error::None) {
+ return error;
+ }
+
+ std::vector<char> rawName(size);
+ intError = mDevice.mGetDisplayName(mDevice.mHwcDevice, mId, &size,
+ rawName.data());
+ error = static_cast<Error>(intError);
+ if (error != Error::None) {
+ return error;
+ }
+
+ *outName = std::string(rawName.cbegin(), rawName.cend());
+ return Error::None;
+}
+
+Error Display::getRequests(HWC2::DisplayRequest* outDisplayRequests,
+ std::unordered_map<std::shared_ptr<Layer>, LayerRequest>*
+ outLayerRequests)
+{
+ int32_t intDisplayRequests = 0;
+ uint32_t numElements = 0;
+ int32_t intError = mDevice.mGetDisplayRequests(mDevice.mHwcDevice, mId,
+ &intDisplayRequests, &numElements, nullptr, nullptr);
+ auto error = static_cast<Error>(intError);
+ if (error != Error::None) {
+ return error;
+ }
+
+ std::vector<hwc2_layer_t> layerIds(numElements);
+ std::vector<int32_t> layerRequests(numElements);
+ intError = mDevice.mGetDisplayRequests(mDevice.mHwcDevice, mId,
+ &intDisplayRequests, &numElements, layerIds.data(),
+ layerRequests.data());
+ error = static_cast<Error>(intError);
+ if (error != Error::None) {
+ return error;
+ }
+
+ *outDisplayRequests = static_cast<DisplayRequest>(intDisplayRequests);
+ outLayerRequests->clear();
+ outLayerRequests->reserve(numElements);
+ for (uint32_t element = 0; element < numElements; ++element) {
+ auto layer = getLayerById(layerIds[element]);
+ if (layer) {
+ auto layerRequest =
+ static_cast<LayerRequest>(layerRequests[element]);
+ outLayerRequests->emplace(layer, layerRequest);
+ } else {
+ ALOGE("getRequests: invalid layer %" PRIu64 " found on display %"
+ PRIu64, layerIds[element], mId);
+ }
+ }
+
+ return Error::None;
+}
+
+Error Display::getType(DisplayType* outType) const
+{
+ int32_t intType = 0;
+ int32_t intError = mDevice.mGetDisplayType(mDevice.mHwcDevice, mId,
+ &intType);
+ auto error = static_cast<Error>(intError);
+ if (error != Error::None) {
+ return error;
+ }
+
+ *outType = static_cast<DisplayType>(intType);
+ return Error::None;
+}
+
+Error Display::supportsDoze(bool* outSupport) const
+{
+ int32_t intSupport = 0;
+ int32_t intError = mDevice.mGetDozeSupport(mDevice.mHwcDevice, mId,
+ &intSupport);
+ auto error = static_cast<Error>(intError);
+ if (error != Error::None) {
+ return error;
+ }
+ *outSupport = static_cast<bool>(intSupport);
+ return Error::None;
+}
+
+Error Display::getReleaseFences(
+ std::unordered_map<std::shared_ptr<Layer>, sp<Fence>>* outFences) const
+{
+ uint32_t numElements = 0;
+ int32_t intError = mDevice.mGetReleaseFences(mDevice.mHwcDevice, mId,
+ &numElements, nullptr, nullptr);
+ auto error = static_cast<Error>(intError);
+ if (error != Error::None) {
+ return error;
+ }
+
+ std::vector<hwc2_layer_t> layerIds(numElements);
+ std::vector<int32_t> fenceFds(numElements);
+ intError = mDevice.mGetReleaseFences(mDevice.mHwcDevice, mId, &numElements,
+ layerIds.data(), fenceFds.data());
+ error = static_cast<Error>(intError);
+ if (error != Error::None) {
+ return error;
+ }
+
+ std::unordered_map<std::shared_ptr<Layer>, sp<Fence>> releaseFences;
+ releaseFences.reserve(numElements);
+ for (uint32_t element = 0; element < numElements; ++element) {
+ auto layer = getLayerById(layerIds[element]);
+ if (layer) {
+ sp<Fence> fence(new Fence(fenceFds[element]));
+ releaseFences.emplace(std::move(layer), fence);
+ } else {
+ ALOGE("getReleaseFences: invalid layer %" PRIu64
+ " found on display %" PRIu64, layerIds[element], mId);
+ return Error::BadLayer;
+ }
+ }
+
+ *outFences = std::move(releaseFences);
+ return Error::None;
+}
+
+Error Display::present(sp<Fence>* outRetireFence)
+{
+ int32_t retireFenceFd = 0;
+ int32_t intError = mDevice.mPresentDisplay(mDevice.mHwcDevice, mId,
+ &retireFenceFd);
+ auto error = static_cast<Error>(intError);
+ if (error != Error::None) {
+ return error;
+ }
+
+ *outRetireFence = new Fence(retireFenceFd);
+ return Error::None;
+}
+
+Error Display::setActiveConfig(const std::shared_ptr<const Config>& config)
+{
+ if (config->getDisplayId() != mId) {
+ ALOGE("setActiveConfig received config %u for the wrong display %"
+ PRIu64 " (expected %" PRIu64 ")", config->getId(),
+ config->getDisplayId(), mId);
+ return Error::BadConfig;
+ }
+ int32_t intError = mDevice.mSetActiveConfig(mDevice.mHwcDevice, mId,
+ config->getId());
+ return static_cast<Error>(intError);
+}
+
+Error Display::setClientTarget(buffer_handle_t target,
+ const sp<Fence>& acquireFence, android_dataspace_t dataspace)
+{
+ int32_t fenceFd = acquireFence->dup();
+ int32_t intError = mDevice.mSetClientTarget(mDevice.mHwcDevice, mId, target,
+ fenceFd, static_cast<int32_t>(dataspace));
+ return static_cast<Error>(intError);
+}
+
+Error Display::setOutputBuffer(const sp<GraphicBuffer>& buffer,
+ const sp<Fence>& releaseFence)
+{
+ int32_t fenceFd = releaseFence->dup();
+ auto handle = buffer->getNativeBuffer()->handle;
+ int32_t intError = mDevice.mSetOutputBuffer(mDevice.mHwcDevice, mId, handle,
+ fenceFd);
+ return static_cast<Error>(intError);
+}
+
+Error Display::setPowerMode(PowerMode mode)
+{
+ auto intMode = static_cast<int32_t>(mode);
+ int32_t intError = mDevice.mSetPowerMode(mDevice.mHwcDevice, mId, intMode);
+ return static_cast<Error>(intError);
+}
+
+Error Display::setVsyncEnabled(Vsync enabled)
+{
+ auto intEnabled = static_cast<int32_t>(enabled);
+ int32_t intError = mDevice.mSetVsyncEnabled(mDevice.mHwcDevice, mId,
+ intEnabled);
+ return static_cast<Error>(intError);
+}
+
+Error Display::validate(uint32_t* outNumTypes, uint32_t* outNumRequests)
+{
+ uint32_t numTypes = 0;
+ uint32_t numRequests = 0;
+ int32_t intError = mDevice.mValidateDisplay(mDevice.mHwcDevice, mId,
+ &numTypes, &numRequests);
+ auto error = static_cast<Error>(intError);
+ if (error != Error::None && error != Error::HasChanges) {
+ return error;
+ }
+
+ *outNumTypes = numTypes;
+ *outNumRequests = numRequests;
+ return error;
+}
+
+// For use by Device
+
+int32_t Display::getAttribute(hwc2_config_t configId, Attribute attribute)
+{
+ int32_t value = 0;
+ int32_t intError = mDevice.mGetDisplayAttribute(mDevice.mHwcDevice, mId,
+ configId, static_cast<int32_t>(attribute), &value);
+ auto error = static_cast<Error>(intError);
+ if (error != Error::None) {
+ ALOGE("getDisplayAttribute(%" PRIu64 ", %u, %s) failed: %s (%d)", mId,
+ configId, to_string(attribute).c_str(),
+ to_string(error).c_str(), intError);
+ return -1;
+ }
+ return value;
+}
+
+void Display::loadConfig(hwc2_config_t configId)
+{
+ ALOGV("[%" PRIu64 "] loadConfig(%u)", mId, configId);
+
+ auto config = Config::Builder(*this, configId)
+ .setWidth(getAttribute(configId, Attribute::Width))
+ .setHeight(getAttribute(configId, Attribute::Height))
+ .setVsyncPeriod(getAttribute(configId, Attribute::VsyncPeriod))
+ .setDpiX(getAttribute(configId, Attribute::DpiX))
+ .setDpiY(getAttribute(configId, Attribute::DpiY))
+ .build();
+ mConfigs.emplace(configId, std::move(config));
+}
+
+void Display::loadConfigs()
+{
+ ALOGV("[%" PRIu64 "] loadConfigs", mId);
+
+ uint32_t numConfigs = 0;
+ int32_t intError = mDevice.mGetDisplayConfigs(mDevice.mHwcDevice, mId,
+ &numConfigs, nullptr);
+ auto error = static_cast<Error>(intError);
+ if (error != Error::None) {
+ ALOGE("[%" PRIu64 "] getDisplayConfigs [1] failed: %s (%d)", mId,
+ to_string(error).c_str(), intError);
+ return;
+ }
+
+ std::vector<hwc2_config_t> configIds(numConfigs);
+ intError = mDevice.mGetDisplayConfigs(mDevice.mHwcDevice, mId, &numConfigs,
+ configIds.data());
+ error = static_cast<Error>(intError);
+ if (error != Error::None) {
+ ALOGE("[%" PRIu64 "] getDisplayConfigs [2] failed: %s (%d)", mId,
+ to_string(error).c_str(), intError);
+ return;
+ }
+
+ for (auto configId : configIds) {
+ loadConfig(configId);
+ }
+}
+
+// For use by Layer
+
+void Display::destroyLayer(hwc2_layer_t layerId)
+{
+ int32_t intError = mDevice.mDestroyLayer(mDevice.mHwcDevice, mId, layerId);
+ auto error = static_cast<Error>(intError);
+ ALOGE_IF(error != Error::None, "destroyLayer(%" PRIu64 ", %" PRIu64 ")"
+ " failed: %s (%d)", mId, layerId, to_string(error).c_str(),
+ intError);
+ mLayers.erase(layerId);
+}
+
+// Other Display methods
+
+std::shared_ptr<Layer> Display::getLayerById(hwc2_layer_t id) const
+{
+ if (mLayers.count(id) == 0) {
+ return nullptr;
+ }
+
+ auto layer = mLayers.at(id).lock();
+ return layer;
+}
+
+// Layer methods
+
+Layer::Layer(const std::shared_ptr<Display>& display, hwc2_layer_t id)
+ : mDisplay(display),
+ mDisplayId(display->getId()),
+ mDevice(display->getDevice()),
+ mId(id)
+{
+ ALOGV("Created layer %" PRIu64 " on display %" PRIu64, id,
+ display->getId());
+}
+
+Layer::~Layer()
+{
+ auto display = mDisplay.lock();
+ if (display) {
+ display->destroyLayer(mId);
+ }
+}
+
+Error Layer::setCursorPosition(int32_t x, int32_t y)
+{
+ int32_t intError = mDevice.mSetCursorPosition(mDevice.mHwcDevice,
+ mDisplayId, mId, x, y);
+ return static_cast<Error>(intError);
+}
+
+Error Layer::setBuffer(buffer_handle_t buffer,
+ const sp<Fence>& acquireFence)
+{
+ int32_t fenceFd = acquireFence->dup();
+ int32_t intError = mDevice.mSetLayerBuffer(mDevice.mHwcDevice, mDisplayId,
+ mId, buffer, fenceFd);
+ return static_cast<Error>(intError);
+}
+
+Error Layer::setSurfaceDamage(const Region& damage)
+{
+ // We encode default full-screen damage as INVALID_RECT upstream, but as 0
+ // rects for HWC
+ int32_t intError = 0;
+ if (damage.isRect() && damage.getBounds() == Rect::INVALID_RECT) {
+ intError = mDevice.mSetLayerSurfaceDamage(mDevice.mHwcDevice,
+ mDisplayId, mId, {0, nullptr});
+ } else {
+ size_t rectCount = 0;
+ auto rectArray = damage.getArray(&rectCount);
+
+ std::vector<hwc_rect_t> hwcRects;
+ for (size_t rect = 0; rect < rectCount; ++rect) {
+ hwcRects.push_back({rectArray[rect].left, rectArray[rect].top,
+ rectArray[rect].right, rectArray[rect].bottom});
+ }
+
+ hwc_region_t hwcRegion = {};
+ hwcRegion.numRects = rectCount;
+ hwcRegion.rects = hwcRects.data();
+
+ intError = mDevice.mSetLayerSurfaceDamage(mDevice.mHwcDevice,
+ mDisplayId, mId, hwcRegion);
+ }
+
+ return static_cast<Error>(intError);
+}
+
+Error Layer::setBlendMode(BlendMode mode)
+{
+ auto intMode = static_cast<int32_t>(mode);
+ int32_t intError = mDevice.mSetLayerBlendMode(mDevice.mHwcDevice,
+ mDisplayId, mId, intMode);
+ return static_cast<Error>(intError);
+}
+
+Error Layer::setColor(hwc_color_t color)
+{
+ int32_t intError = mDevice.mSetLayerColor(mDevice.mHwcDevice, mDisplayId,
+ mId, color);
+ return static_cast<Error>(intError);
+}
+
+Error Layer::setCompositionType(Composition type)
+{
+ auto intType = static_cast<int32_t>(type);
+ int32_t intError = mDevice.mSetLayerCompositionType(mDevice.mHwcDevice,
+ mDisplayId, mId, intType);
+ return static_cast<Error>(intError);
+}
+
+Error Layer::setDisplayFrame(const Rect& frame)
+{
+ hwc_rect_t hwcRect{frame.left, frame.top, frame.right, frame.bottom};
+ int32_t intError = mDevice.mSetLayerDisplayFrame(mDevice.mHwcDevice,
+ mDisplayId, mId, hwcRect);
+ return static_cast<Error>(intError);
+}
+
+Error Layer::setPlaneAlpha(float alpha)
+{
+ int32_t intError = mDevice.mSetLayerPlaneAlpha(mDevice.mHwcDevice,
+ mDisplayId, mId, alpha);
+ return static_cast<Error>(intError);
+}
+
+Error Layer::setSidebandStream(const native_handle_t* stream)
+{
+ int32_t intError = mDevice.mSetLayerSidebandStream(mDevice.mHwcDevice,
+ mDisplayId, mId, stream);
+ return static_cast<Error>(intError);
+}
+
+Error Layer::setSourceCrop(const FloatRect& crop)
+{
+ hwc_frect_t hwcRect{crop.left, crop.top, crop.right, crop.bottom};
+ int32_t intError = mDevice.mSetLayerSourceCrop(mDevice.mHwcDevice,
+ mDisplayId, mId, hwcRect);
+ return static_cast<Error>(intError);
+}
+
+Error Layer::setTransform(Transform transform)
+{
+ auto intTransform = static_cast<int32_t>(transform);
+ int32_t intError = mDevice.mSetLayerTransform(mDevice.mHwcDevice,
+ mDisplayId, mId, intTransform);
+ return static_cast<Error>(intError);
+}
+
+Error Layer::setVisibleRegion(const Region& region)
+{
+ size_t rectCount = 0;
+ auto rectArray = region.getArray(&rectCount);
+
+ std::vector<hwc_rect_t> hwcRects;
+ for (size_t rect = 0; rect < rectCount; ++rect) {
+ hwcRects.push_back({rectArray[rect].left, rectArray[rect].top,
+ rectArray[rect].right, rectArray[rect].bottom});
+ }
+
+ hwc_region_t hwcRegion = {};
+ hwcRegion.numRects = rectCount;
+ hwcRegion.rects = hwcRects.data();
+
+ int32_t intError = mDevice.mSetLayerVisibleRegion(mDevice.mHwcDevice,
+ mDisplayId, mId, hwcRegion);
+ return static_cast<Error>(intError);
+}
+
+Error Layer::setZOrder(uint32_t z)
+{
+ int32_t intError = mDevice.mSetLayerZOrder(mDevice.mHwcDevice, mDisplayId,
+ mId, z);
+ return static_cast<Error>(intError);
+}
+
+} // namespace HWC2
diff --git a/services/surfaceflinger/DisplayHardware/HWC2.h b/services/surfaceflinger/DisplayHardware/HWC2.h
new file mode 100644
index 0000000..a7bd28c
--- /dev/null
+++ b/services/surfaceflinger/DisplayHardware/HWC2.h
@@ -0,0 +1,377 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_SF_HWC2_H
+#define ANDROID_SF_HWC2_H
+
+#define HWC2_INCLUDE_STRINGIFICATION
+#define HWC2_USE_CPP11
+#include <hardware/hwcomposer2.h>
+#undef HWC2_INCLUDE_STRINGIFICATION
+#undef HWC2_USE_CPP11
+
+#include <utils/Log.h>
+#include <utils/StrongPointer.h>
+#include <utils/Timers.h>
+
+#include <functional>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+namespace android {
+ class Fence;
+ class FloatRect;
+ class GraphicBuffer;
+ class Rect;
+ class Region;
+}
+
+namespace HWC2 {
+
+class Display;
+class Layer;
+
+typedef std::function<void(std::shared_ptr<Display>, Connection)>
+ HotplugCallback;
+typedef std::function<void(std::shared_ptr<Display>)> RefreshCallback;
+typedef std::function<void(std::shared_ptr<Display>, nsecs_t)> VsyncCallback;
+
+class Device
+{
+public:
+ Device(hwc2_device_t* device);
+ ~Device();
+
+ friend class HWC2::Display;
+ friend class HWC2::Layer;
+
+ // Required by HWC2
+
+ std::string dump() const;
+
+ const std::vector<Capability>& getCapabilities() const {
+ return mCapabilities;
+ };
+
+ uint32_t getMaxVirtualDisplayCount() const;
+ Error createVirtualDisplay(uint32_t width, uint32_t height,
+ std::shared_ptr<Display>* outDisplay);
+
+ void registerHotplugCallback(HotplugCallback hotplug);
+ void registerRefreshCallback(RefreshCallback refresh);
+ void registerVsyncCallback(VsyncCallback vsync);
+
+ // For use by callbacks
+
+ void callHotplug(std::shared_ptr<Display> display, Connection connected);
+ void callRefresh(std::shared_ptr<Display> display);
+ void callVsync(std::shared_ptr<Display> display, nsecs_t timestamp);
+
+ // Other Device methods
+
+ // This will create a Display if one is not found, but it will not be marked
+ // as connected
+ std::shared_ptr<Display> getDisplayById(hwc2_display_t id);
+
+private:
+ // Initialization methods
+
+ template <typename PFN>
+ [[clang::warn_unused_result]] bool loadFunctionPointer(
+ FunctionDescriptor desc, PFN& outPFN) {
+ auto intDesc = static_cast<int32_t>(desc);
+ auto pfn = mHwcDevice->getFunction(mHwcDevice, intDesc);
+ if (pfn != nullptr) {
+ outPFN = reinterpret_cast<PFN>(pfn);
+ return true;
+ } else {
+ ALOGE("Failed to load function %s", to_string(desc).c_str());
+ return false;
+ }
+ }
+
+ template <typename PFN, typename HOOK>
+ void registerCallback(Callback callback, HOOK hook) {
+ static_assert(std::is_same<PFN, HOOK>::value,
+ "Incompatible function pointer");
+ auto intCallback = static_cast<int32_t>(callback);
+ auto callbackData = static_cast<hwc2_callback_data_t>(this);
+ auto pfn = reinterpret_cast<hwc2_function_pointer_t>(hook);
+ mRegisterCallback(mHwcDevice, intCallback, callbackData, pfn);
+ }
+
+ void loadCapabilities();
+ void loadFunctionPointers();
+ void registerCallbacks();
+
+ // For use by Display
+
+ void destroyVirtualDisplay(hwc2_display_t display);
+
+ // Member variables
+
+ hwc2_device_t* mHwcDevice;
+
+ // Device function pointers
+ HWC2_PFN_CREATE_VIRTUAL_DISPLAY mCreateVirtualDisplay;
+ HWC2_PFN_DESTROY_VIRTUAL_DISPLAY mDestroyVirtualDisplay;
+ HWC2_PFN_DUMP mDump;
+ HWC2_PFN_GET_MAX_VIRTUAL_DISPLAY_COUNT mGetMaxVirtualDisplayCount;
+ HWC2_PFN_REGISTER_CALLBACK mRegisterCallback;
+
+ // Display function pointers
+ HWC2_PFN_ACCEPT_DISPLAY_CHANGES mAcceptDisplayChanges;
+ HWC2_PFN_CREATE_LAYER mCreateLayer;
+ HWC2_PFN_DESTROY_LAYER mDestroyLayer;
+ HWC2_PFN_GET_ACTIVE_CONFIG mGetActiveConfig;
+ HWC2_PFN_GET_CHANGED_COMPOSITION_TYPES mGetChangedCompositionTypes;
+ HWC2_PFN_GET_DISPLAY_ATTRIBUTE mGetDisplayAttribute;
+ HWC2_PFN_GET_DISPLAY_CONFIGS mGetDisplayConfigs;
+ HWC2_PFN_GET_DISPLAY_NAME mGetDisplayName;
+ HWC2_PFN_GET_DISPLAY_REQUESTS mGetDisplayRequests;
+ HWC2_PFN_GET_DISPLAY_TYPE mGetDisplayType;
+ HWC2_PFN_GET_DOZE_SUPPORT mGetDozeSupport;
+ HWC2_PFN_GET_RELEASE_FENCES mGetReleaseFences;
+ HWC2_PFN_PRESENT_DISPLAY mPresentDisplay;
+ HWC2_PFN_SET_ACTIVE_CONFIG mSetActiveConfig;
+ HWC2_PFN_SET_CLIENT_TARGET mSetClientTarget;
+ HWC2_PFN_SET_OUTPUT_BUFFER mSetOutputBuffer;
+ HWC2_PFN_SET_POWER_MODE mSetPowerMode;
+ HWC2_PFN_SET_VSYNC_ENABLED mSetVsyncEnabled;
+ HWC2_PFN_VALIDATE_DISPLAY mValidateDisplay;
+
+ // Layer function pointers
+ HWC2_PFN_SET_CURSOR_POSITION mSetCursorPosition;
+ HWC2_PFN_SET_LAYER_BUFFER mSetLayerBuffer;
+ HWC2_PFN_SET_LAYER_SURFACE_DAMAGE mSetLayerSurfaceDamage;
+ HWC2_PFN_SET_LAYER_BLEND_MODE mSetLayerBlendMode;
+ HWC2_PFN_SET_LAYER_COLOR mSetLayerColor;
+ HWC2_PFN_SET_LAYER_COMPOSITION_TYPE mSetLayerCompositionType;
+ HWC2_PFN_SET_LAYER_DISPLAY_FRAME mSetLayerDisplayFrame;
+ HWC2_PFN_SET_LAYER_PLANE_ALPHA mSetLayerPlaneAlpha;
+ HWC2_PFN_SET_LAYER_SIDEBAND_STREAM mSetLayerSidebandStream;
+ HWC2_PFN_SET_LAYER_SOURCE_CROP mSetLayerSourceCrop;
+ HWC2_PFN_SET_LAYER_TRANSFORM mSetLayerTransform;
+ HWC2_PFN_SET_LAYER_VISIBLE_REGION mSetLayerVisibleRegion;
+ HWC2_PFN_SET_LAYER_Z_ORDER mSetLayerZOrder;
+
+ std::vector<Capability> mCapabilities;
+ std::unordered_map<hwc2_display_t, std::shared_ptr<Display>> mDisplays;
+
+ HotplugCallback mHotplug;
+ std::vector<std::pair<std::shared_ptr<Display>, Connection>>
+ mPendingHotplugs;
+ RefreshCallback mRefresh;
+ std::vector<std::shared_ptr<Display>> mPendingRefreshes;
+ VsyncCallback mVsync;
+ std::vector<std::pair<std::shared_ptr<Display>, nsecs_t>> mPendingVsyncs;
+};
+
+class Display : public std::enable_shared_from_this<Display>
+{
+public:
+ Display(Device& device, hwc2_display_t id);
+ ~Display();
+
+ friend class HWC2::Device;
+ friend class HWC2::Layer;
+
+ class Config
+ {
+ public:
+ class Builder
+ {
+ public:
+ Builder(Display& display, hwc2_config_t id);
+
+ std::shared_ptr<const Config> build() {
+ return std::const_pointer_cast<const Config>(
+ std::move(mConfig));
+ }
+
+ Builder& setWidth(int32_t width) {
+ mConfig->mWidth = width;
+ return *this;
+ }
+ Builder& setHeight(int32_t height) {
+ mConfig->mHeight = height;
+ return *this;
+ }
+ Builder& setVsyncPeriod(int32_t vsyncPeriod) {
+ mConfig->mVsyncPeriod = vsyncPeriod;
+ return *this;
+ }
+ Builder& setDpiX(int32_t dpiX) {
+ if (dpiX == -1) {
+ mConfig->mDpiX = getDefaultDensity();
+ } else {
+ mConfig->mDpiX = dpiX / 1000.0f;
+ }
+ return *this;
+ }
+ Builder& setDpiY(int32_t dpiY) {
+ if (dpiY == -1) {
+ mConfig->mDpiY = getDefaultDensity();
+ } else {
+ mConfig->mDpiY = dpiY / 1000.0f;
+ }
+ return *this;
+ }
+
+ private:
+ float getDefaultDensity();
+ std::shared_ptr<Config> mConfig;
+ };
+
+ hwc2_display_t getDisplayId() const { return mDisplay.getId(); }
+ hwc2_config_t getId() const { return mId; }
+
+ int32_t getWidth() const { return mWidth; }
+ int32_t getHeight() const { return mHeight; }
+ nsecs_t getVsyncPeriod() const { return mVsyncPeriod; }
+ float getDpiX() const { return mDpiX; }
+ float getDpiY() const { return mDpiY; }
+
+ private:
+ Config(Display& display, hwc2_config_t id);
+
+ Display& mDisplay;
+ hwc2_config_t mId;
+
+ int32_t mWidth;
+ int32_t mHeight;
+ nsecs_t mVsyncPeriod;
+ float mDpiX;
+ float mDpiY;
+ };
+
+ // Required by HWC2
+
+ [[clang::warn_unused_result]] Error acceptChanges();
+ [[clang::warn_unused_result]] Error createLayer(
+ std::shared_ptr<Layer>* outLayer);
+ [[clang::warn_unused_result]] Error getActiveConfig(
+ std::shared_ptr<const Config>* outConfig) const;
+ [[clang::warn_unused_result]] Error getChangedCompositionTypes(
+ std::unordered_map<std::shared_ptr<Layer>, Composition>* outTypes);
+
+ // Doesn't call into the HWC2 device, so no errors are possible
+ std::vector<std::shared_ptr<const Config>> getConfigs() const;
+
+ [[clang::warn_unused_result]] Error getName(std::string* outName) const;
+ [[clang::warn_unused_result]] Error getRequests(
+ DisplayRequest* outDisplayRequests,
+ std::unordered_map<std::shared_ptr<Layer>, LayerRequest>*
+ outLayerRequests);
+ [[clang::warn_unused_result]] Error getType(DisplayType* outType) const;
+ [[clang::warn_unused_result]] Error supportsDoze(bool* outSupport) const;
+ [[clang::warn_unused_result]] Error getReleaseFences(
+ std::unordered_map<std::shared_ptr<Layer>,
+ android::sp<android::Fence>>* outFences) const;
+ [[clang::warn_unused_result]] Error present(
+ android::sp<android::Fence>* outRetireFence);
+ [[clang::warn_unused_result]] Error setActiveConfig(
+ const std::shared_ptr<const Config>& config);
+ [[clang::warn_unused_result]] Error setClientTarget(
+ buffer_handle_t target,
+ const android::sp<android::Fence>& acquireFence,
+ android_dataspace_t dataspace);
+ [[clang::warn_unused_result]] Error setOutputBuffer(
+ const android::sp<android::GraphicBuffer>& buffer,
+ const android::sp<android::Fence>& releaseFence);
+ [[clang::warn_unused_result]] Error setPowerMode(PowerMode mode);
+ [[clang::warn_unused_result]] Error setVsyncEnabled(Vsync enabled);
+ [[clang::warn_unused_result]] Error validate(uint32_t* outNumTypes,
+ uint32_t* outNumRequests);
+
+ // Other Display methods
+
+ Device& getDevice() const { return mDevice; }
+ hwc2_display_t getId() const { return mId; }
+ bool isConnected() const { return mIsConnected; }
+
+private:
+ // For use by Device
+
+ // Virtual displays are always connected
+ void setVirtual() {
+ mIsVirtual = true;
+ mIsConnected = true;
+ }
+
+ void setConnected(bool connected) { mIsConnected = connected; }
+ int32_t getAttribute(hwc2_config_t configId, Attribute attribute);
+ void loadConfig(hwc2_config_t configId);
+ void loadConfigs();
+
+ // For use by Layer
+ void destroyLayer(hwc2_layer_t layerId);
+
+ // This may fail (and return a null pointer) if no layer with this ID exists
+ // on this display
+ std::shared_ptr<Layer> getLayerById(hwc2_layer_t id) const;
+
+ // Member variables
+
+ Device& mDevice;
+ hwc2_display_t mId;
+ bool mIsConnected;
+ bool mIsVirtual;
+ std::unordered_map<hwc2_layer_t, std::weak_ptr<Layer>> mLayers;
+ std::unordered_map<hwc2_config_t, std::shared_ptr<const Config>> mConfigs;
+};
+
+class Layer
+{
+public:
+ Layer(const std::shared_ptr<Display>& display, hwc2_layer_t id);
+ ~Layer();
+
+ bool isAbandoned() const { return mDisplay.expired(); }
+ hwc2_layer_t getId() const { return mId; }
+
+ [[clang::warn_unused_result]] Error setCursorPosition(int32_t x, int32_t y);
+ [[clang::warn_unused_result]] Error setBuffer(buffer_handle_t buffer,
+ const android::sp<android::Fence>& acquireFence);
+ [[clang::warn_unused_result]] Error setSurfaceDamage(
+ const android::Region& damage);
+
+ [[clang::warn_unused_result]] Error setBlendMode(BlendMode mode);
+ [[clang::warn_unused_result]] Error setColor(hwc_color_t color);
+ [[clang::warn_unused_result]] Error setCompositionType(Composition type);
+ [[clang::warn_unused_result]] Error setDisplayFrame(
+ const android::Rect& frame);
+ [[clang::warn_unused_result]] Error setPlaneAlpha(float alpha);
+ [[clang::warn_unused_result]] Error setSidebandStream(
+ const native_handle_t* stream);
+ [[clang::warn_unused_result]] Error setSourceCrop(
+ const android::FloatRect& crop);
+ [[clang::warn_unused_result]] Error setTransform(Transform transform);
+ [[clang::warn_unused_result]] Error setVisibleRegion(
+ const android::Region& region);
+ [[clang::warn_unused_result]] Error setZOrder(uint32_t z);
+
+private:
+ std::weak_ptr<Display> mDisplay;
+ hwc2_display_t mDisplayId;
+ Device& mDevice;
+ hwc2_layer_t mId;
+};
+
+} // namespace HWC2
+
+#endif // ANDROID_SF_HWC2_H
diff --git a/services/surfaceflinger/DisplayHardware/HWC2On1Adapter.cpp b/services/surfaceflinger/DisplayHardware/HWC2On1Adapter.cpp
new file mode 100644
index 0000000..8cbd718
--- /dev/null
+++ b/services/surfaceflinger/DisplayHardware/HWC2On1Adapter.cpp
@@ -0,0 +1,2323 @@
+/*
+ * 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.
+ */
+
+//#define LOG_NDEBUG 0
+
+#undef LOG_TAG
+#define LOG_TAG "HWC2On1Adapter"
+#define ATRACE_TAG ATRACE_TAG_GRAPHICS
+
+#include "HWC2On1Adapter.h"
+
+#include <hardware/hwcomposer.h>
+#include <log/log.h>
+#include <utils/Trace.h>
+
+#include <cstdlib>
+#include <chrono>
+#include <inttypes.h>
+#include <sstream>
+
+using namespace std::chrono_literals;
+
+static bool operator==(const hwc_color_t& lhs, const hwc_color_t& rhs) {
+ return lhs.r == rhs.r &&
+ lhs.g == rhs.g &&
+ lhs.b == rhs.b &&
+ lhs.a == rhs.a;
+}
+
+static bool operator==(const hwc_rect_t& lhs, const hwc_rect_t& rhs) {
+ return lhs.left == rhs.left &&
+ lhs.top == rhs.top &&
+ lhs.right == rhs.right &&
+ lhs.bottom == rhs.bottom;
+}
+
+static bool operator==(const hwc_frect_t& lhs, const hwc_frect_t& rhs) {
+ return lhs.left == rhs.left &&
+ lhs.top == rhs.top &&
+ lhs.right == rhs.right &&
+ lhs.bottom == rhs.bottom;
+}
+
+template <typename T>
+static inline bool operator!=(const T& lhs, const T& rhs)
+{
+ return !(lhs == rhs);
+}
+
+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;
+
+namespace android {
+
+void HWC2On1Adapter::DisplayContentsDeleter::operator()(
+ hwc_display_contents_1_t* contents)
+{
+ if (contents != nullptr) {
+ for (size_t l = 0; l < contents->numHwLayers; ++l) {
+ auto& layer = contents->hwLayers[l];
+ std::free(const_cast<hwc_rect_t*>(layer.visibleRegionScreen.rects));
+ }
+ }
+ std::free(contents);
+}
+
+class HWC2On1Adapter::Callbacks : public hwc_procs_t {
+ public:
+ 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),
+ 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::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::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>);
+ 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::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::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;
+ }
+
+ if (MAX_VIRTUAL_DISPLAY_DIMENSION != 0 &&
+ (width > MAX_VIRTUAL_DISPLAY_DIMENSION ||
+ height > MAX_VIRTUAL_DISPLAY_DIMENSION)) {
+ ALOGE("createVirtualDisplay: Can't create a virtual display with"
+ " a dimension > %u (tried %u x %u)",
+ MAX_VIRTUAL_DISPLAY_DIMENSION, width, height);
+ 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::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::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';
+
+ 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::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),
+ mDirtyCount(0),
+ mStateMutex(),
+ mZIsDirty(false),
+ mHwc1RequestedContents(nullptr),
+ mHwc1ReceivedContents(nullptr),
+ mRetireFence(),
+ mChanges(),
+ mHwc1Id(-1),
+ mConfigs(),
+ mActiveConfig(nullptr),
+ mName(),
+ mType(type),
+ mPowerMode(PowerMode::Off),
+ mVsyncEnabled(Vsync::Invalid),
+ mClientTarget(),
+ mOutputBuffer(),
+ mLayers() {}
+
+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();
+
+ mHwc1RequestedContents = std::move(mHwc1ReceivedContents);
+
+ 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);
+ 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);
+ 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::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::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 != Fence::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;
+ }
+
+ *outDisplayRequests = mChanges->getDisplayRequests();
+ 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;
+ }
+ mActiveConfig = config;
+ if (mDevice.mHwc1MinorVersion >= 4) {
+ int error = mDevice.mHwc1Device->setActiveConfig(mDevice.mHwc1Device,
+ mHwc1Id, static_cast<int>(configId));
+ ALOGE_IF(error != 0,
+ "setActiveConfig: Failed to set active config on HWC1 (%d)",
+ error);
+ }
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Display::setClientTarget(buffer_handle_t target,
+ int32_t acquireFence, int32_t /*dataspace*/)
+{
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ ALOGV("[%" PRIu64 "] setClientTarget(%p, %d)", mId, target, acquireFence);
+ mClientTarget.setBuffer(target);
+ mClientTarget.setFence(acquireFence);
+ // dataspace can't be used by HWC1, so ignore it
+ 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;
+ default: return false;
+ }
+}
+
+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;
+ default: return HWC_POWER_MODE_OFF;
+ }
+}
+
+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;
+ default: 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);
+
+ ALOGV("[%" PRIu64 "] Entering validate", mId);
+
+ if (!mChanges) {
+ if (!mDevice.prepareAllDisplays()) {
+ return Error::BadDisplay;
+ }
+ }
+
+ *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;
+}
+
+// Display helpers
+
+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));
+ mZIsDirty = true;
+
+ return Error::None;
+}
+
+static constexpr uint32_t ATTRIBUTES[] = {
+ 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 = sizeof(ATTRIBUTES) / sizeof(uint32_t);
+
+static constexpr uint32_t ATTRIBUTE_MAP[] = {
+ 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()
+{
+ return ATTRIBUTES[ATTRIBUTE_MAP[attribute]] == 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");
+
+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];
+ hwc2_config_t id = static_cast<hwc2_config_t>(mConfigs.size());
+ mConfigs.emplace_back(
+ std::make_shared<Config>(*this, id, hwc1ConfigId));
+ auto& config = mConfigs[id];
+
+ int32_t values[NUM_ATTRIBUTES] = {};
+ mDevice.mHwc1Device->getDisplayAttributes(mDevice.mHwc1Device, mHwc1Id,
+ hwc1ConfigId, ATTRIBUTES, values);
+
+ config->setAttribute(Attribute::VsyncPeriod,
+ values[ATTRIBUTE_MAP[HWC_DISPLAY_VSYNC_PERIOD]]);
+ config->setAttribute(Attribute::Width,
+ values[ATTRIBUTE_MAP[HWC_DISPLAY_WIDTH]]);
+ config->setAttribute(Attribute::Height,
+ values[ATTRIBUTE_MAP[HWC_DISPLAY_HEIGHT]]);
+ config->setAttribute(Attribute::DpiX,
+ values[ATTRIBUTE_MAP[HWC_DISPLAY_DPI_X]]);
+ config->setAttribute(Attribute::DpiY,
+ values[ATTRIBUTE_MAP[HWC_DISPLAY_DPI_Y]]);
+
+ ALOGV("Found config: %s", config->toString().c_str());
+ }
+
+ ALOGV("Getting active config");
+ if (mDevice.mHwc1Device->getActiveConfig != nullptr) {
+ auto activeConfig = mDevice.mHwc1Device->getActiveConfig(
+ mDevice.mHwc1Device, mHwc1Id);
+ if (activeConfig >= 0) {
+ ALOGV("Setting active config to %d", activeConfig);
+ mActiveConfig = mConfigs[activeConfig];
+ }
+ } else {
+ ALOGV("getActiveConfig is null, choosing config 0");
+ mActiveConfig = mConfigs[0];
+ }
+}
+
+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, 0, 0));
+ auto& config = mConfigs[0];
+
+ config->setAttribute(Attribute::Width, static_cast<int32_t>(width));
+ config->setAttribute(Attribute::Height, static_cast<int32_t>(height));
+ 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;
+ }
+
+ ALOGV("[%" PRIu64 "] Entering prepare", mId);
+
+ auto currentCount = mHwc1RequestedContents ?
+ mHwc1RequestedContents->numHwLayers : 0;
+ auto requiredCount = mLayers.size() + 1;
+ ALOGV("[%" PRIu64 "] Requires %zd layers, %zd allocated in %p", mId,
+ requiredCount, currentCount, mHwc1RequestedContents.get());
+
+ bool layerCountChanged = (currentCount != requiredCount);
+ if (layerCountChanged) {
+ reallocateHwc1Contents();
+ }
+
+ bool applyAllState = false;
+ if (layerCountChanged || mZIsDirty) {
+ assignHwc1LayerIds();
+ mZIsDirty = false;
+ applyAllState = true;
+ }
+
+ mHwc1RequestedContents->retireFenceFd = -1;
+ mHwc1RequestedContents->flags = 0;
+ if (isDirty() || applyAllState) {
+ mHwc1RequestedContents->flags |= HWC_GEOMETRY_CHANGED;
+ }
+
+ for (auto& layer : mLayers) {
+ auto& hwc1Layer = mHwc1RequestedContents->hwLayers[layer->getHwc1Id()];
+ hwc1Layer.releaseFenceFd = -1;
+ layer->applyState(hwc1Layer, applyAllState);
+ }
+
+ mHwc1RequestedContents->outbuf = mOutputBuffer.getBuffer();
+ mHwc1RequestedContents->outbufAcquireFenceFd = mOutputBuffer.getFence();
+
+ prepareFramebufferTarget();
+
+ return true;
+}
+
+static void cloneHWCRegion(hwc_region_t& region)
+{
+ auto size = sizeof(hwc_rect_t) * region.numRects;
+ auto newRects = static_cast<hwc_rect_t*>(std::malloc(size));
+ std::copy_n(region.rects, region.numRects, newRects);
+ region.rects = newRects;
+}
+
+HWC2On1Adapter::Display::HWC1Contents
+ HWC2On1Adapter::Display::cloneRequestedContents() const
+{
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ size_t size = sizeof(hwc_display_contents_1_t) +
+ sizeof(hwc_layer_1_t) * (mHwc1RequestedContents->numHwLayers);
+ auto contents = static_cast<hwc_display_contents_1_t*>(std::malloc(size));
+ std::memcpy(contents, mHwc1RequestedContents.get(), size);
+ for (size_t layerId = 0; layerId < contents->numHwLayers; ++layerId) {
+ auto& layer = contents->hwLayers[layerId];
+ // Deep copy the regions to avoid double-frees
+ cloneHWCRegion(layer.visibleRegionScreen);
+ cloneHWCRegion(layer.surfaceDamage);
+ }
+ return HWC1Contents(contents);
+}
+
+void HWC2On1Adapter::Display::setReceivedContents(HWC1Contents contents)
+{
+ std::unique_lock<std::recursive_mutex> lock(mStateMutex);
+
+ mHwc1ReceivedContents = std::move(contents);
+
+ mChanges.reset(new Changes);
+
+ size_t numLayers = mHwc1ReceivedContents->numHwLayers;
+ for (size_t hwc1Id = 0; hwc1Id < numLayers; ++hwc1Id) {
+ const auto& receivedLayer = mHwc1ReceivedContents->hwLayers[hwc1Id];
+ if (mHwc1LayerMap.count(hwc1Id) == 0) {
+ ALOGE_IF(receivedLayer.compositionType != HWC_FRAMEBUFFER_TARGET,
+ "setReceivedContents: 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);
+ }
+}
+
+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 << " " << mConfigs.size() << " Config" <<
+ (mConfigs.size() == 1 ? "" : "s") << " (* Active)\n";
+ for (const auto& config : mConfigs) {
+ if (config == mActiveConfig) {
+ output << " * " << config->toString();
+ } else {
+ output << " " << config->toString();
+ }
+ }
+ output << '\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 (mHwc1ReceivedContents) {
+ output << " Last received HWC1 state\n";
+ output << to_string(*mHwc1ReceivedContents, mDevice.mHwc1MinorVersion);
+ } else if (mHwc1RequestedContents) {
+ output << " Last requested HWC1 state\n";
+ output << to_string(*mHwc1RequestedContents, mDevice.mHwc1MinorVersion);
+ }
+
+ return output.str();
+}
+
+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);
+}
+
+std::string HWC2On1Adapter::Display::Config::toString() const
+{
+ std::string output;
+
+ const size_t BUFFER_SIZE = 100;
+ char buffer[BUFFER_SIZE] = {};
+ auto writtenBytes = snprintf(buffer, BUFFER_SIZE,
+ "[%u] %u x %u", mHwcId,
+ 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);
+ }
+
+ 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::reallocateHwc1Contents()
+{
+ // Allocate an additional layer for the framebuffer target
+ auto numLayers = mLayers.size() + 1;
+ size_t size = sizeof(hwc_display_contents_1_t) +
+ sizeof(hwc_layer_1_t) * numLayers;
+ ALOGV("[%" PRIu64 "] reallocateHwc1Contents creating %zd layer%s", mId,
+ numLayers, numLayers != 1 ? "s" : "");
+ auto contents =
+ static_cast<hwc_display_contents_1_t*>(std::calloc(size, 1));
+ contents->numHwLayers = numLayers;
+ mHwc1RequestedContents.reset(contents);
+}
+
+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;
+ auto rects = static_cast<hwc_rect_t*>(std::malloc(sizeof(hwc_rect_t)));
+ 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),
+ mBlendMode(*this, BlendMode::None),
+ mColor(*this, {0, 0, 0, 0}),
+ mCompositionType(*this, Composition::Invalid),
+ mDisplayFrame(*this, {0, 0, -1, -1}),
+ mPlaneAlpha(*this, 0.0f),
+ mSidebandStream(*this, nullptr),
+ mSourceCrop(*this, {0.0f, 0.0f, -1.0f, -1.0f}),
+ mTransform(*this, Transform::None),
+ mVisibleRegion(*this, std::vector<hwc_rect_t>()),
+ mZ(0),
+ 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.getValue() != 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)
+{
+ 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.setPending(mode);
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setColor(hwc_color_t color)
+{
+ mColor.setPending(color);
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setCompositionType(Composition type)
+{
+ mCompositionType.setPending(type);
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setDisplayFrame(hwc_rect_t frame)
+{
+ mDisplayFrame.setPending(frame);
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setPlaneAlpha(float alpha)
+{
+ mPlaneAlpha.setPending(alpha);
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setSidebandStream(const native_handle_t* stream)
+{
+ mSidebandStream.setPending(stream);
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setSourceCrop(hwc_frect_t crop)
+{
+ mSourceCrop.setPending(crop);
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setTransform(Transform transform)
+{
+ mTransform.setPending(transform);
+ return Error::None;
+}
+
+Error HWC2On1Adapter::Layer::setVisibleRegion(hwc_region_t rawVisible)
+{
+ std::vector<hwc_rect_t> visible(rawVisible.rects,
+ rawVisible.rects + rawVisible.numRects);
+ mVisibleRegion.setPending(std::move(visible));
+ 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<Fence>& HWC2On1Adapter::Layer::getReleaseFence() const
+{
+ return mReleaseFence.get();
+}
+
+void HWC2On1Adapter::Layer::applyState(hwc_layer_1_t& hwc1Layer,
+ bool applyAllState)
+{
+ applyCommonState(hwc1Layer, applyAllState);
+ auto compositionType = mCompositionType.getPendingValue();
+ if (compositionType == Composition::SolidColor) {
+ applySolidColorState(hwc1Layer, applyAllState);
+ } else if (compositionType == Composition::Sideband) {
+ applySidebandState(hwc1Layer, applyAllState);
+ } else {
+ applyBufferState(hwc1Layer);
+ }
+ applyCompositionType(hwc1Layer, applyAllState);
+}
+
+// Layer dump helpers
+
+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.getPendingValue());
+ output << " Layer HWC2/1: " << mId << "/" << mHwc1Id << " ";
+ output << "Z: " << mZ;
+ if (mCompositionType.getValue() == HWC2::Composition::SolidColor) {
+ output << " " << colorString(mColor.getValue());
+ } else if (mCompositionType.getValue() == HWC2::Composition::Sideband) {
+ output << " Handle: " << mSidebandStream.getValue() << '\n';
+ } else {
+ output << " Buffer: " << mBuffer.getBuffer() << "/" <<
+ mBuffer.getFence() << '\n';
+ output << fill << " Display frame [LTRB]: " <<
+ rectString(mDisplayFrame.getValue()) << '\n';
+ output << fill << " Source crop: " <<
+ frectString(mSourceCrop.getValue()) << '\n';
+ output << fill << " Transform: " << to_string(mTransform.getValue());
+ output << " Blend mode: " << to_string(mBlendMode.getValue());
+ if (mPlaneAlpha.getValue() != 1.0f) {
+ output << " Alpha: " <<
+ alphaString(mPlaneAlpha.getValue()) << '\n';
+ } else {
+ output << '\n';
+ }
+ output << regionStrings(mVisibleRegion.getValue(), 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,
+ bool applyAllState)
+{
+ auto minorVersion = mDisplay.getDevice().getHwc1MinorVersion();
+ if (applyAllState || mBlendMode.isDirty()) {
+ hwc1Layer.blending = getHwc1Blending(mBlendMode.getPendingValue());
+ mBlendMode.latch();
+ }
+ if (applyAllState || mDisplayFrame.isDirty()) {
+ hwc1Layer.displayFrame = mDisplayFrame.getPendingValue();
+ mDisplayFrame.latch();
+ }
+ if (applyAllState || mPlaneAlpha.isDirty()) {
+ auto pendingAlpha = mPlaneAlpha.getPendingValue();
+ if (minorVersion < 2) {
+ mHasUnsupportedPlaneAlpha = pendingAlpha < 1.0f;
+ } else {
+ hwc1Layer.planeAlpha =
+ static_cast<uint8_t>(255.0f * pendingAlpha + 0.5f);
+ }
+ mPlaneAlpha.latch();
+ }
+ if (applyAllState || mSourceCrop.isDirty()) {
+ if (minorVersion < 3) {
+ auto pending = mSourceCrop.getPendingValue();
+ 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.getPendingValue();
+ }
+ mSourceCrop.latch();
+ }
+ if (applyAllState || mTransform.isDirty()) {
+ hwc1Layer.transform =
+ static_cast<uint32_t>(mTransform.getPendingValue());
+ mTransform.latch();
+ }
+ if (applyAllState || mVisibleRegion.isDirty()) {
+ auto& hwc1VisibleRegion = hwc1Layer.visibleRegionScreen;
+
+ std::free(const_cast<hwc_rect_t*>(hwc1VisibleRegion.rects));
+
+ auto pending = mVisibleRegion.getPendingValue();
+ hwc_rect_t* newRects = static_cast<hwc_rect_t*>(
+ std::malloc(sizeof(hwc_rect_t) * pending.size()));
+ std::copy(pending.begin(), pending.end(), newRects);
+ hwc1VisibleRegion.rects = const_cast<const hwc_rect_t*>(newRects);
+ hwc1VisibleRegion.numRects = pending.size();
+ mVisibleRegion.latch();
+ }
+}
+
+void HWC2On1Adapter::Layer::applySolidColorState(hwc_layer_1_t& hwc1Layer,
+ bool applyAllState)
+{
+ if (applyAllState || mColor.isDirty()) {
+ hwc1Layer.backgroundColor = mColor.getPendingValue();
+ mColor.latch();
+ }
+}
+
+void HWC2On1Adapter::Layer::applySidebandState(hwc_layer_1_t& hwc1Layer,
+ bool applyAllState)
+{
+ if (applyAllState || mSidebandStream.isDirty()) {
+ hwc1Layer.sidebandStream = mSidebandStream.getPendingValue();
+ mSidebandStream.latch();
+ }
+}
+
+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,
+ bool applyAllState)
+{
+ if (mHasUnsupportedPlaneAlpha) {
+ hwc1Layer.compositionType = HWC_FRAMEBUFFER;
+ hwc1Layer.flags = HWC_SKIP_LAYER;
+ return;
+ }
+
+ if (applyAllState || mCompositionType.isDirty()) {
+ hwc1Layer.flags = 0;
+ switch (mCompositionType.getPendingValue()) {
+ case Composition::Client:
+ hwc1Layer.compositionType = HWC_FRAMEBUFFER;
+ hwc1Layer.flags |= HWC_SKIP_LAYER;
+ break;
+ case Composition::Device:
+ hwc1Layer.compositionType = HWC_FRAMEBUFFER;
+ break;
+ case Composition::SolidColor:
+ hwc1Layer.compositionType = HWC_BACKGROUND;
+ 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.getPendingValue()).c_str(),
+ hwc1Layer.compositionType);
+ ALOGV_IF(hwc1Layer.flags & HWC_SKIP_LAYER, " and skipping");
+ mCompositionType.latch();
+ }
+}
+
+// Adapter helpers
+
+void HWC2On1Adapter::populateCapabilities()
+{
+ ALOGV("populateCapabilities");
+ if (mHwc1MinorVersion >= 3U) {
+ int supportedTypes = 0;
+ auto result = mHwc1Device->query(mHwc1Device,
+ HWC_DISPLAY_TYPES_SUPPORTED, &supportedTypes);
+ if ((result == 0) && ((supportedTypes & HWC_DISPLAY_VIRTUAL) != 0)) {
+ ALOGI("Found support for HWC virtual displays");
+ mHwc1SupportsVirtualDisplays = true;
+ }
+ }
+ if (mHwc1MinorVersion >= 4U) {
+ mCapabilities.insert(Capability::SidebandStream);
+ }
+}
+
+HWC2On1Adapter::Display* HWC2On1Adapter::getDisplay(hwc2_display_t id)
+{
+ std::unique_lock<std::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()
+{
+ ALOGV("populatePrimary");
+
+ std::unique_lock<std::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::timed_mutex> lock(mStateMutex);
+
+ for (const auto& displayPair : mDisplays) {
+ auto& display = displayPair.second;
+ if (!display->prepare()) {
+ return false;
+ }
+ }
+
+ if (mHwc1DisplayMap.count(0) == 0) {
+ ALOGE("prepareAllDisplays: Unable to find primary HWC1 display");
+ return false;
+ }
+
+ // Always push the primary display
+ std::vector<HWC2On1Adapter::Display::HWC1Contents> requestedContents;
+ auto primaryDisplayId = mHwc1DisplayMap[HWC_DISPLAY_PRIMARY];
+ auto& primaryDisplay = mDisplays[primaryDisplayId];
+ auto primaryDisplayContents = primaryDisplay->cloneRequestedContents();
+ requestedContents.push_back(std::move(primaryDisplayContents));
+
+ // Push the external display, if present
+ if (mHwc1DisplayMap.count(HWC_DISPLAY_EXTERNAL) != 0) {
+ auto externalDisplayId = mHwc1DisplayMap[HWC_DISPLAY_EXTERNAL];
+ auto& externalDisplay = mDisplays[externalDisplayId];
+ auto externalDisplayContents =
+ externalDisplay->cloneRequestedContents();
+ requestedContents.push_back(std::move(externalDisplayContents));
+ } else {
+ // Even if an external display isn't present, we still need to send
+ // at least two displays down to HWC1
+ requestedContents.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];
+ auto virtualDisplayContents =
+ virtualDisplay->cloneRequestedContents();
+ requestedContents.push_back(std::move(virtualDisplayContents));
+ } else {
+ requestedContents.push_back(nullptr);
+ }
+ }
+
+ mHwc1Contents.clear();
+ for (auto& displayContents : requestedContents) {
+ mHwc1Contents.push_back(displayContents.get());
+ 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->setReceivedContents(std::move(requestedContents[hwc1Id]));
+ }
+
+ return true;
+}
+
+Error HWC2On1Adapter::setAllDisplays()
+{
+ ATRACE_CALL();
+
+ std::unique_lock<std::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");
+ 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::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::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::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
diff --git a/services/surfaceflinger/DisplayHardware/HWC2On1Adapter.h b/services/surfaceflinger/DisplayHardware/HWC2On1Adapter.h
new file mode 100644
index 0000000..500c48f
--- /dev/null
+++ b/services/surfaceflinger/DisplayHardware/HWC2On1Adapter.h
@@ -0,0 +1,627 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_SF_HWC2_ON_1_ADAPTER_H
+#define ANDROID_SF_HWC2_ON_1_ADAPTER_H
+
+#define HWC2_INCLUDE_STRINGIFICATION
+#define HWC2_USE_CPP11
+#include <hardware/hwcomposer2.h>
+#undef HWC2_INCLUDE_STRINGIFICATION
+#undef HWC2_USE_CPP11
+
+#include <ui/Fence.h>
+
+#include <atomic>
+#include <map>
+#include <mutex>
+#include <queue>
+#include <set>
+#include <unordered_map>
+#include <unordered_set>
+#include <vector>
+
+struct hwc_composer_device_1;
+struct hwc_display_contents_1;
+struct hwc_layer_1;
+
+namespace android {
+
+class HWC2On1Adapter : public hwc2_device_t
+{
+public:
+ HWC2On1Adapter(struct hwc_composer_device_1* hwc1Device);
+ ~HWC2On1Adapter();
+
+ struct hwc_composer_device_1* getHwc1Device() const { return mHwc1Device; }
+ uint8_t getHwc1MinorVersion() const { return mHwc1MinorVersion; }
+
+private:
+ static inline HWC2On1Adapter* getAdapter(hwc2_device_t* device) {
+ return static_cast<HWC2On1Adapter*>(device);
+ }
+
+ // getCapabilities
+
+ void doGetCapabilities(uint32_t* outCount,
+ int32_t* /*hwc2_capability_t*/ outCapabilities);
+ static void getCapabilitiesHook(hwc2_device_t* device, uint32_t* outCount,
+ int32_t* /*hwc2_capability_t*/ outCapabilities) {
+ getAdapter(device)->doGetCapabilities(outCount, outCapabilities);
+ }
+
+ // getFunction
+
+ hwc2_function_pointer_t doGetFunction(HWC2::FunctionDescriptor descriptor);
+ static hwc2_function_pointer_t getFunctionHook(hwc2_device_t* device,
+ int32_t intDesc) {
+ auto descriptor = static_cast<HWC2::FunctionDescriptor>(intDesc);
+ return getAdapter(device)->doGetFunction(descriptor);
+ }
+
+ // Device functions
+
+ HWC2::Error createVirtualDisplay(uint32_t width, uint32_t height,
+ hwc2_display_t* outDisplay);
+ static int32_t createVirtualDisplayHook(hwc2_device_t* device,
+ uint32_t width, uint32_t height, hwc2_display_t* outDisplay) {
+ auto error = getAdapter(device)->createVirtualDisplay(width, height,
+ outDisplay);
+ return static_cast<int32_t>(error);
+ }
+
+ HWC2::Error destroyVirtualDisplay(hwc2_display_t display);
+ static int32_t destroyVirtualDisplayHook(hwc2_device_t* device,
+ hwc2_display_t display) {
+ auto error = getAdapter(device)->destroyVirtualDisplay(display);
+ return static_cast<int32_t>(error);
+ }
+
+ std::string mDumpString;
+ void dump(uint32_t* outSize, char* outBuffer);
+ static void dumpHook(hwc2_device_t* device, uint32_t* outSize,
+ char* outBuffer) {
+ getAdapter(device)->dump(outSize, outBuffer);
+ }
+
+ uint32_t getMaxVirtualDisplayCount();
+ static uint32_t getMaxVirtualDisplayCountHook(hwc2_device_t* device) {
+ return getAdapter(device)->getMaxVirtualDisplayCount();
+ }
+
+ HWC2::Error registerCallback(HWC2::Callback descriptor,
+ hwc2_callback_data_t callbackData, hwc2_function_pointer_t pointer);
+ static int32_t registerCallbackHook(hwc2_device_t* device,
+ int32_t intDesc, hwc2_callback_data_t callbackData,
+ hwc2_function_pointer_t pointer) {
+ auto descriptor = static_cast<HWC2::Callback>(intDesc);
+ auto error = getAdapter(device)->registerCallback(descriptor,
+ callbackData, pointer);
+ return static_cast<int32_t>(error);
+ }
+
+ // Display functions
+
+ class Layer;
+
+ class SortLayersByZ {
+ public:
+ bool operator()(const std::shared_ptr<Layer>& lhs,
+ const std::shared_ptr<Layer>& rhs);
+ };
+
+ class DisplayContentsDeleter {
+ public:
+ void operator()(struct hwc_display_contents_1* contents);
+ };
+
+ class DeferredFence {
+ public:
+ DeferredFence()
+ : mMutex(),
+ mFences({Fence::NO_FENCE, Fence::NO_FENCE}) {}
+
+ void add(int32_t fenceFd) {
+ mFences.emplace(new Fence(fenceFd));
+ mFences.pop();
+ }
+
+ const sp<Fence>& get() const {
+ return mFences.front();
+ }
+
+ private:
+ mutable std::mutex mMutex;
+ std::queue<sp<Fence>> mFences;
+ };
+
+ class FencedBuffer {
+ public:
+ FencedBuffer() : mBuffer(nullptr), mFence(Fence::NO_FENCE) {}
+
+ void setBuffer(buffer_handle_t buffer) { mBuffer = buffer; }
+ void setFence(int fenceFd) { mFence = new Fence(fenceFd); }
+
+ buffer_handle_t getBuffer() const { return mBuffer; }
+ int getFence() const { return mFence->dup(); }
+
+ private:
+ buffer_handle_t mBuffer;
+ sp<Fence> mFence;
+ };
+
+ class Display {
+ public:
+ typedef std::unique_ptr<hwc_display_contents_1,
+ DisplayContentsDeleter> HWC1Contents;
+
+ Display(HWC2On1Adapter& device, HWC2::DisplayType type);
+
+ hwc2_display_t getId() const { return mId; }
+ HWC2On1Adapter& getDevice() const { return mDevice; }
+
+ // Does not require locking because it is set before adding the
+ // Displays to the Adapter's list of displays
+ void setHwc1Id(int32_t id) { mHwc1Id = id; }
+ int32_t getHwc1Id() const { return mHwc1Id; }
+
+ void incDirty() { ++mDirtyCount; }
+ void decDirty() { --mDirtyCount; }
+ bool isDirty() const { return mDirtyCount > 0 || mZIsDirty; }
+
+ // HWC2 Display functions
+ HWC2::Error acceptChanges();
+ HWC2::Error createLayer(hwc2_layer_t* outLayerId);
+ HWC2::Error destroyLayer(hwc2_layer_t layerId);
+ HWC2::Error getActiveConfig(hwc2_config_t* outConfigId);
+ HWC2::Error getAttribute(hwc2_config_t configId,
+ HWC2::Attribute attribute, int32_t* outValue);
+ HWC2::Error getChangedCompositionTypes(uint32_t* outNumElements,
+ hwc2_layer_t* outLayers, int32_t* outTypes);
+ HWC2::Error getConfigs(uint32_t* outNumConfigs,
+ hwc2_config_t* outConfigIds);
+ HWC2::Error getDozeSupport(int32_t* outSupport);
+ HWC2::Error getName(uint32_t* outSize, char* outName);
+ HWC2::Error getReleaseFences(uint32_t* outNumElements,
+ hwc2_layer_t* outLayers, int32_t* outFences);
+ HWC2::Error getRequests(int32_t* outDisplayRequests,
+ uint32_t* outNumElements, hwc2_layer_t* outLayers,
+ int32_t* outLayerRequests);
+ HWC2::Error getType(int32_t* outType);
+ HWC2::Error present(int32_t* outRetireFence);
+ HWC2::Error setActiveConfig(hwc2_config_t configId);
+ HWC2::Error setClientTarget(buffer_handle_t target,
+ int32_t acquireFence, int32_t dataspace);
+ HWC2::Error setOutputBuffer(buffer_handle_t buffer,
+ int32_t releaseFence);
+ HWC2::Error setPowerMode(HWC2::PowerMode mode);
+ HWC2::Error setVsyncEnabled(HWC2::Vsync enabled);
+ HWC2::Error validate(uint32_t* outNumTypes,
+ uint32_t* outNumRequests);
+
+ HWC2::Error updateLayerZ(hwc2_layer_t layerId, uint32_t z);
+
+ // Read configs from HWC1 device
+ void populateConfigs();
+
+ // Set configs for a virtual display
+ void populateConfigs(uint32_t width, uint32_t height);
+
+ bool prepare();
+ HWC1Contents cloneRequestedContents() const;
+ void setReceivedContents(HWC1Contents contents);
+ bool hasChanges() const;
+ HWC2::Error set(hwc_display_contents_1& hwcContents);
+ void addRetireFence(int fenceFd);
+ void addReleaseFences(const hwc_display_contents_1& hwcContents);
+
+ std::string dump() const;
+
+ private:
+ class Config {
+ public:
+ Config(Display& display, hwc2_config_t id, uint32_t hwcId)
+ : mDisplay(display),
+ mId(id),
+ mHwcId(hwcId) {}
+
+ bool isOnDisplay(const Display& display) const {
+ return display.getId() == mDisplay.getId();
+ }
+
+ hwc2_config_t getId() const { return mId; }
+ uint32_t getHwcId() const { return mHwcId; }
+
+ void setAttribute(HWC2::Attribute attribute, int32_t value);
+ int32_t getAttribute(HWC2::Attribute attribute) const;
+
+ std::string toString() const;
+
+ private:
+ Display& mDisplay;
+ const hwc2_config_t mId;
+ const uint32_t mHwcId;
+ std::unordered_map<HWC2::Attribute, int32_t> mAttributes;
+ };
+
+ class Changes {
+ public:
+ uint32_t getNumTypes() const {
+ return static_cast<uint32_t>(mTypeChanges.size());
+ }
+
+ uint32_t getNumLayerRequests() const {
+ return static_cast<uint32_t>(mLayerRequests.size());
+ }
+
+ const std::unordered_map<hwc2_layer_t, HWC2::Composition>&
+ getTypeChanges() const {
+ return mTypeChanges;
+ }
+
+ const std::unordered_map<hwc2_layer_t, HWC2::LayerRequest>&
+ getLayerRequests() const {
+ return mLayerRequests;
+ }
+
+ int32_t getDisplayRequests() const {
+ int32_t requests = 0;
+ for (auto request : mDisplayRequests) {
+ requests |= static_cast<int32_t>(request);
+ }
+ return requests;
+ }
+
+ void addTypeChange(hwc2_layer_t layerId,
+ HWC2::Composition type) {
+ mTypeChanges.insert({layerId, type});
+ }
+
+ void clearTypeChanges() { mTypeChanges.clear(); }
+
+ void addLayerRequest(hwc2_layer_t layerId,
+ HWC2::LayerRequest request) {
+ mLayerRequests.insert({layerId, request});
+ }
+
+ private:
+ std::unordered_map<hwc2_layer_t, HWC2::Composition>
+ mTypeChanges;
+ std::unordered_map<hwc2_layer_t, HWC2::LayerRequest>
+ mLayerRequests;
+ std::unordered_set<HWC2::DisplayRequest> mDisplayRequests;
+ };
+
+ std::shared_ptr<const Config>
+ getConfig(hwc2_config_t configId) const;
+
+ void reallocateHwc1Contents();
+ void assignHwc1LayerIds();
+
+ void updateTypeChanges(const struct hwc_layer_1& hwc1Layer,
+ const Layer& layer);
+ void updateLayerRequests(const struct hwc_layer_1& hwc1Layer,
+ const Layer& layer);
+
+ void prepareFramebufferTarget();
+
+ static std::atomic<hwc2_display_t> sNextId;
+ const hwc2_display_t mId;
+ HWC2On1Adapter& mDevice;
+
+ std::atomic<size_t> mDirtyCount;
+
+ // The state of this display should only be modified from
+ // SurfaceFlinger's main loop, with the exception of when dump is
+ // called. To prevent a bad state from crashing us during a dump
+ // call, all public calls into Display must acquire this mutex.
+ //
+ // It is recursive because we don't want to deadlock in validate
+ // (or present) when we call HWC2On1Adapter::prepareAllDisplays
+ // (or setAllDisplays), which calls back into Display functions
+ // which require locking.
+ mutable std::recursive_mutex mStateMutex;
+
+ bool mZIsDirty;
+ HWC1Contents mHwc1RequestedContents;
+ HWC1Contents mHwc1ReceivedContents;
+ DeferredFence mRetireFence;
+
+ // Will only be non-null after the layer has been validated but
+ // before it has been presented
+ std::unique_ptr<Changes> mChanges;
+
+ int32_t mHwc1Id;
+ std::vector<std::shared_ptr<Config>> mConfigs;
+ std::shared_ptr<const Config> mActiveConfig;
+ std::string mName;
+ HWC2::DisplayType mType;
+ HWC2::PowerMode mPowerMode;
+ HWC2::Vsync mVsyncEnabled;
+
+ FencedBuffer mClientTarget;
+ FencedBuffer mOutputBuffer;
+
+ std::multiset<std::shared_ptr<Layer>, SortLayersByZ> mLayers;
+ std::unordered_map<size_t, std::shared_ptr<Layer>> mHwc1LayerMap;
+ };
+
+ template <typename ...Args>
+ static int32_t callDisplayFunction(hwc2_device_t* device,
+ hwc2_display_t displayId, HWC2::Error (Display::*member)(Args...),
+ Args... args) {
+ auto display = getAdapter(device)->getDisplay(displayId);
+ if (!display) {
+ return static_cast<int32_t>(HWC2::Error::BadDisplay);
+ }
+ auto error = ((*display).*member)(std::forward<Args>(args)...);
+ return static_cast<int32_t>(error);
+ }
+
+ template <typename MF, MF memFunc, typename ...Args>
+ static int32_t displayHook(hwc2_device_t* device, hwc2_display_t displayId,
+ Args... args) {
+ return HWC2On1Adapter::callDisplayFunction(device, displayId, memFunc,
+ std::forward<Args>(args)...);
+ }
+
+ static int32_t getDisplayAttributeHook(hwc2_device_t* device,
+ hwc2_display_t display, hwc2_config_t config,
+ int32_t intAttribute, int32_t* outValue) {
+ auto attribute = static_cast<HWC2::Attribute>(intAttribute);
+ return callDisplayFunction(device, display, &Display::getAttribute,
+ config, attribute, outValue);
+ }
+
+ static int32_t setPowerModeHook(hwc2_device_t* device,
+ hwc2_display_t display, int32_t intMode) {
+ auto mode = static_cast<HWC2::PowerMode>(intMode);
+ return callDisplayFunction(device, display, &Display::setPowerMode,
+ mode);
+ }
+
+ static int32_t setVsyncEnabledHook(hwc2_device_t* device,
+ hwc2_display_t display, int32_t intEnabled) {
+ auto enabled = static_cast<HWC2::Vsync>(intEnabled);
+ return callDisplayFunction(device, display, &Display::setVsyncEnabled,
+ enabled);
+ }
+
+ // Layer functions
+
+ template <typename T>
+ class LatchedState {
+ public:
+ LatchedState(Layer& parent, T initialValue)
+ : mParent(parent),
+ mPendingValue(initialValue),
+ mValue(initialValue) {}
+
+ void setPending(T value) {
+ if (value == mPendingValue) {
+ return;
+ }
+ if (mPendingValue == mValue) {
+ mParent.incDirty();
+ } else if (value == mValue) {
+ mParent.decDirty();
+ }
+ mPendingValue = value;
+ }
+
+ T getValue() const { return mValue; }
+ T getPendingValue() const { return mPendingValue; }
+
+ bool isDirty() const { return mPendingValue != mValue; }
+
+ void latch() {
+ if (isDirty()) {
+ mValue = mPendingValue;
+ mParent.decDirty();
+ }
+ }
+
+ private:
+ Layer& mParent;
+ T mPendingValue;
+ T mValue;
+ };
+
+ class Layer {
+ public:
+ Layer(Display& display);
+
+ bool operator==(const Layer& other) { return mId == other.mId; }
+ bool operator!=(const Layer& other) { return !(*this == other); }
+
+ hwc2_layer_t getId() const { return mId; }
+ Display& getDisplay() const { return mDisplay; }
+
+ void incDirty() { if (mDirtyCount++ == 0) mDisplay.incDirty(); }
+ void decDirty() { if (--mDirtyCount == 0) mDisplay.decDirty(); }
+ bool isDirty() const { return mDirtyCount > 0; }
+
+ // HWC2 Layer functions
+ HWC2::Error setBuffer(buffer_handle_t buffer, int32_t acquireFence);
+ HWC2::Error setCursorPosition(int32_t x, int32_t y);
+ HWC2::Error setSurfaceDamage(hwc_region_t damage);
+
+ // HWC2 Layer state functions
+ HWC2::Error setBlendMode(HWC2::BlendMode mode);
+ HWC2::Error setColor(hwc_color_t color);
+ HWC2::Error setCompositionType(HWC2::Composition type);
+ HWC2::Error setDisplayFrame(hwc_rect_t frame);
+ HWC2::Error setPlaneAlpha(float alpha);
+ HWC2::Error setSidebandStream(const native_handle_t* stream);
+ HWC2::Error setSourceCrop(hwc_frect_t crop);
+ HWC2::Error setTransform(HWC2::Transform transform);
+ HWC2::Error setVisibleRegion(hwc_region_t visible);
+ HWC2::Error setZ(uint32_t z);
+
+ HWC2::Composition getCompositionType() const {
+ return mCompositionType.getValue();
+ }
+ uint32_t getZ() const { return mZ; }
+
+ void addReleaseFence(int fenceFd);
+ const sp<Fence>& getReleaseFence() const;
+
+ void setHwc1Id(size_t id) { mHwc1Id = id; }
+ size_t getHwc1Id() const { return mHwc1Id; }
+
+ void applyState(struct hwc_layer_1& hwc1Layer, bool applyAllState);
+
+ std::string dump() const;
+
+ private:
+ void applyCommonState(struct hwc_layer_1& hwc1Layer,
+ bool applyAllState);
+ void applySolidColorState(struct hwc_layer_1& hwc1Layer,
+ bool applyAllState);
+ void applySidebandState(struct hwc_layer_1& hwc1Layer,
+ bool applyAllState);
+ void applyBufferState(struct hwc_layer_1& hwc1Layer);
+ void applyCompositionType(struct hwc_layer_1& hwc1Layer,
+ bool applyAllState);
+
+ static std::atomic<hwc2_layer_t> sNextId;
+ const hwc2_layer_t mId;
+ Display& mDisplay;
+ size_t mDirtyCount;
+
+ FencedBuffer mBuffer;
+ std::vector<hwc_rect_t> mSurfaceDamage;
+
+ LatchedState<HWC2::BlendMode> mBlendMode;
+ LatchedState<hwc_color_t> mColor;
+ LatchedState<HWC2::Composition> mCompositionType;
+ LatchedState<hwc_rect_t> mDisplayFrame;
+ LatchedState<float> mPlaneAlpha;
+ LatchedState<const native_handle_t*> mSidebandStream;
+ LatchedState<hwc_frect_t> mSourceCrop;
+ LatchedState<HWC2::Transform> mTransform;
+ LatchedState<std::vector<hwc_rect_t>> mVisibleRegion;
+ uint32_t mZ;
+
+ DeferredFence mReleaseFence;
+
+ size_t mHwc1Id;
+ bool mHasUnsupportedPlaneAlpha;
+ };
+
+ template <typename ...Args>
+ static int32_t callLayerFunction(hwc2_device_t* device,
+ hwc2_display_t displayId, hwc2_layer_t layerId,
+ HWC2::Error (Layer::*member)(Args...), Args... args) {
+ auto result = getAdapter(device)->getLayer(displayId, layerId);
+ auto error = std::get<HWC2::Error>(result);
+ if (error == HWC2::Error::None) {
+ auto layer = std::get<Layer*>(result);
+ error = ((*layer).*member)(std::forward<Args>(args)...);
+ }
+ return static_cast<int32_t>(error);
+ }
+
+ template <typename MF, MF memFunc, typename ...Args>
+ static int32_t layerHook(hwc2_device_t* device, hwc2_display_t displayId,
+ hwc2_layer_t layerId, Args... args) {
+ return HWC2On1Adapter::callLayerFunction(device, displayId, layerId,
+ memFunc, std::forward<Args>(args)...);
+ }
+
+ // Layer state functions
+
+ static int32_t setLayerBlendModeHook(hwc2_device_t* device,
+ hwc2_display_t display, hwc2_layer_t layer, int32_t intMode) {
+ auto mode = static_cast<HWC2::BlendMode>(intMode);
+ return callLayerFunction(device, display, layer,
+ &Layer::setBlendMode, mode);
+ }
+
+ static int32_t setLayerCompositionTypeHook(hwc2_device_t* device,
+ hwc2_display_t display, hwc2_layer_t layer, int32_t intType) {
+ auto type = static_cast<HWC2::Composition>(intType);
+ return callLayerFunction(device, display, layer,
+ &Layer::setCompositionType, type);
+ }
+
+ static int32_t setLayerTransformHook(hwc2_device_t* device,
+ hwc2_display_t display, hwc2_layer_t layer, int32_t intTransform) {
+ auto transform = static_cast<HWC2::Transform>(intTransform);
+ return callLayerFunction(device, display, layer, &Layer::setTransform,
+ transform);
+ }
+
+ static int32_t setLayerZOrderHook(hwc2_device_t* device,
+ hwc2_display_t display, hwc2_layer_t layer, uint32_t z) {
+ return callDisplayFunction(device, display, &Display::updateLayerZ,
+ layer, z);
+ }
+
+ // Adapter internals
+
+ void populateCapabilities();
+ Display* getDisplay(hwc2_display_t id);
+ std::tuple<Layer*, HWC2::Error> getLayer(hwc2_display_t displayId,
+ hwc2_layer_t layerId);
+ void populatePrimary();
+
+ bool prepareAllDisplays();
+ std::vector<struct hwc_display_contents_1*> mHwc1Contents;
+ HWC2::Error setAllDisplays();
+
+ void hwc1Invalidate();
+ void hwc1Vsync(int hwc1DisplayId, int64_t timestamp);
+ void hwc1Hotplug(int hwc1DisplayId, int connected);
+
+ // These are set in the constructor and before any asynchronous events are
+ // possible
+
+ struct hwc_composer_device_1* const mHwc1Device;
+ const uint8_t mHwc1MinorVersion;
+ bool mHwc1SupportsVirtualDisplays;
+
+ class Callbacks;
+ const std::unique_ptr<Callbacks> mHwc1Callbacks;
+
+ std::unordered_set<HWC2::Capability> mCapabilities;
+
+ // These are only accessed from the main SurfaceFlinger thread (not from
+ // callbacks or dump
+
+ std::map<hwc2_layer_t, std::shared_ptr<Layer>> mLayers;
+ std::shared_ptr<Display> mHwc1VirtualDisplay;
+
+ // These are potentially accessed from multiple threads, and are protected
+ // by this mutex
+ std::timed_mutex mStateMutex;
+
+ struct CallbackInfo {
+ hwc2_callback_data_t data;
+ hwc2_function_pointer_t pointer;
+ };
+ std::unordered_map<HWC2::Callback, CallbackInfo> mCallbacks;
+ bool mHasPendingInvalidate;
+ std::vector<std::pair<int, int64_t>> mPendingVsyncs;
+ std::vector<std::pair<int, int>> mPendingHotplugs;
+
+ std::map<hwc2_display_t, std::shared_ptr<Display>> mDisplays;
+ std::unordered_map<int, hwc2_display_t> mHwc1DisplayMap;
+};
+
+} // namespace android
+
+#endif