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/*
* Copyright 2021 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.
*/
#pragma once
#include "ComposerHal.h"
#include <ftl/shared_mutex.h>
#include <ui/DisplayMap.h>
#include <functional>
#include <optional>
#include <string>
#include <utility>
#include <vector>
// TODO(b/129481165): remove the #pragma below and fix conversion issues
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wconversion"
#pragma clang diagnostic ignored "-Wextra"
#include <android/hardware/graphics/composer/2.4/IComposer.h>
#include <android/hardware/graphics/composer/2.4/IComposerClient.h>
#include <aidl/android/hardware/graphics/composer3/IComposer.h>
#include <aidl/android/hardware/graphics/composer3/IComposerClient.h>
#include <android/hardware/graphics/composer3/ComposerClientReader.h>
#include <android/hardware/graphics/composer3/ComposerClientWriter.h>
#include <aidl/android/hardware/graphics/composer3/Composition.h>
#include <aidl/android/hardware/graphics/composer3/DisplayCapability.h>
// TODO(b/129481165): remove the #pragma below and fix conversion issues
#pragma clang diagnostic pop // ignored "-Wconversion -Wextra"
namespace android::Hwc2 {
using aidl::android::hardware::graphics::common::DisplayDecorationSupport;
using aidl::android::hardware::graphics::common::HdrConversionCapability;
using aidl::android::hardware::graphics::common::HdrConversionStrategy;
using aidl::android::hardware::graphics::composer3::ComposerClientReader;
using aidl::android::hardware::graphics::composer3::ComposerClientWriter;
using aidl::android::hardware::graphics::composer3::OverlayProperties;
class AidlIComposerCallbackWrapper;
// Composer is a wrapper to IComposer, a proxy to server-side composer.
class AidlComposer final : public Hwc2::Composer {
public:
static bool isDeclared(const std::string& serviceName);
explicit AidlComposer(const std::string& serviceName);
~AidlComposer() override;
bool isSupported(OptionalFeature) const;
bool isVrrSupported() const;
std::vector<aidl::android::hardware::graphics::composer3::Capability> getCapabilities()
override;
std::string dumpDebugInfo() override;
void registerCallback(HWC2::ComposerCallback& callback) override;
// Explicitly flush all pending commands in the command buffer.
Error executeCommands(Display) override;
uint32_t getMaxVirtualDisplayCount() override;
Error createVirtualDisplay(uint32_t width, uint32_t height, PixelFormat* format,
Display* outDisplay) override;
Error destroyVirtualDisplay(Display display) override;
Error acceptDisplayChanges(Display display) override;
Error createLayer(Display display, Layer* outLayer) override;
Error destroyLayer(Display display, Layer layer) override;
Error getActiveConfig(Display display, Config* outConfig) override;
Error getChangedCompositionTypes(
Display display, std::vector<Layer>* outLayers,
std::vector<aidl::android::hardware::graphics::composer3::Composition>* outTypes)
override;
Error getColorModes(Display display, std::vector<ColorMode>* outModes) override;
Error getDisplayAttribute(Display display, Config config, IComposerClient::Attribute attribute,
int32_t* outValue) override;
Error getDisplayConfigs(Display display, std::vector<Config>* outConfigs);
Error getDisplayConfigurations(Display, int32_t maxFrameIntervalNs,
std::vector<DisplayConfiguration>*);
Error getDisplayName(Display display, std::string* outName) override;
Error getDisplayRequests(Display display, uint32_t* outDisplayRequestMask,
std::vector<Layer>* outLayers,
std::vector<uint32_t>* outLayerRequestMasks) override;
Error getDozeSupport(Display display, bool* outSupport) override;
Error hasDisplayIdleTimerCapability(Display display, bool* outSupport) override;
Error getHdrCapabilities(Display display, std::vector<Hdr>* outHdrTypes, float* outMaxLuminance,
float* outMaxAverageLuminance, float* outMinLuminance) override;
Error getOverlaySupport(OverlayProperties* outProperties) override;
Error getReleaseFences(Display display, std::vector<Layer>* outLayers,
std::vector<int>* outReleaseFences) override;
Error presentDisplay(Display display, int* outPresentFence) override;
Error setActiveConfig(Display display, Config config) override;
/*
* The composer caches client targets internally. When target is nullptr,
* the composer uses slot to look up the client target from its cache.
* When target is not nullptr, the cache is updated with the new target.
*/
Error setClientTarget(Display display, uint32_t slot, const sp<GraphicBuffer>& target,
int acquireFence, Dataspace dataspace,
const std::vector<IComposerClient::Rect>& damage,
float hdrSdrRatio) override;
Error setColorMode(Display display, ColorMode mode, RenderIntent renderIntent) override;
Error setColorTransform(Display display, const float* matrix) override;
Error setOutputBuffer(Display display, const native_handle_t* buffer,
int releaseFence) override;
Error setPowerMode(Display display, IComposerClient::PowerMode mode) override;
Error setVsyncEnabled(Display display, IComposerClient::Vsync enabled) override;
Error setClientTargetSlotCount(Display display) override;
Error validateDisplay(Display display, nsecs_t expectedPresentTime, int32_t frameIntervalNs,
uint32_t* outNumTypes, uint32_t* outNumRequests) override;
Error presentOrValidateDisplay(Display display, nsecs_t expectedPresentTime,
int32_t frameIntervalNs, uint32_t* outNumTypes,
uint32_t* outNumRequests, int* outPresentFence,
uint32_t* state) override;
Error setCursorPosition(Display display, Layer layer, int32_t x, int32_t y) override;
/* see setClientTarget for the purpose of slot */
Error setLayerBuffer(Display display, Layer layer, uint32_t slot,
const sp<GraphicBuffer>& buffer, int acquireFence) override;
Error setLayerBufferSlotsToClear(Display display, Layer layer,
const std::vector<uint32_t>& slotsToClear,
uint32_t activeBufferSlot) override;
Error setLayerSurfaceDamage(Display display, Layer layer,
const std::vector<IComposerClient::Rect>& damage) override;
Error setLayerBlendMode(Display display, Layer layer, IComposerClient::BlendMode mode) override;
Error setLayerColor(Display display, Layer layer, const Color& color) override;
Error setLayerCompositionType(
Display display, Layer layer,
aidl::android::hardware::graphics::composer3::Composition type) override;
Error setLayerDataspace(Display display, Layer layer, Dataspace dataspace) override;
Error setLayerDisplayFrame(Display display, Layer layer,
const IComposerClient::Rect& frame) override;
Error setLayerPlaneAlpha(Display display, Layer layer, float alpha) override;
Error setLayerSidebandStream(Display display, Layer layer,
const native_handle_t* stream) override;
Error setLayerSourceCrop(Display display, Layer layer,
const IComposerClient::FRect& crop) override;
Error setLayerTransform(Display display, Layer layer, Transform transform) override;
Error setLayerVisibleRegion(Display display, Layer layer,
const std::vector<IComposerClient::Rect>& visible) override;
Error setLayerZOrder(Display display, Layer layer, uint32_t z) override;
// Composer HAL 2.2
Error setLayerPerFrameMetadata(
Display display, Layer layer,
const std::vector<IComposerClient::PerFrameMetadata>& perFrameMetadatas) override;
std::vector<IComposerClient::PerFrameMetadataKey> getPerFrameMetadataKeys(
Display display) override;
Error getRenderIntents(Display display, ColorMode colorMode,
std::vector<RenderIntent>* outRenderIntents) override;
Error getDataspaceSaturationMatrix(Dataspace dataspace, mat4* outMatrix) override;
// Composer HAL 2.3
Error getDisplayIdentificationData(Display display, uint8_t* outPort,
std::vector<uint8_t>* outData) override;
Error setLayerColorTransform(Display display, Layer layer, const float* matrix) override;
Error getDisplayedContentSamplingAttributes(Display display, PixelFormat* outFormat,
Dataspace* outDataspace,
uint8_t* outComponentMask) override;
Error setDisplayContentSamplingEnabled(Display display, bool enabled, uint8_t componentMask,
uint64_t maxFrames) override;
Error getDisplayedContentSample(Display display, uint64_t maxFrames, uint64_t timestamp,
DisplayedFrameStats* outStats) override;
Error setLayerPerFrameMetadataBlobs(
Display display, Layer layer,
const std::vector<IComposerClient::PerFrameMetadataBlob>& metadata) override;
Error setDisplayBrightness(Display display, float brightness, float brightnessNits,
const DisplayBrightnessOptions& options) override;
// Composer HAL 2.4
Error getDisplayCapabilities(
Display display,
std::vector<aidl::android::hardware::graphics::composer3::DisplayCapability>*
outCapabilities) override;
V2_4::Error getDisplayConnectionType(Display display,
IComposerClient::DisplayConnectionType* outType) override;
V2_4::Error getDisplayVsyncPeriod(Display display, VsyncPeriodNanos* outVsyncPeriod) override;
V2_4::Error setActiveConfigWithConstraints(
Display display, Config config,
const IComposerClient::VsyncPeriodChangeConstraints& vsyncPeriodChangeConstraints,
VsyncPeriodChangeTimeline* outTimeline) override;
V2_4::Error setAutoLowLatencyMode(Display displayId, bool on) override;
V2_4::Error getSupportedContentTypes(
Display displayId,
std::vector<IComposerClient::ContentType>* outSupportedContentTypes) override;
V2_4::Error setContentType(Display displayId,
IComposerClient::ContentType contentType) override;
V2_4::Error setLayerGenericMetadata(Display display, Layer layer, const std::string& key,
bool mandatory, const std::vector<uint8_t>& value) override;
V2_4::Error getLayerGenericMetadataKeys(
std::vector<IComposerClient::LayerGenericMetadataKey>* outKeys) override;
Error getClientTargetProperty(
Display display,
aidl::android::hardware::graphics::composer3::ClientTargetPropertyWithBrightness*
outClientTargetProperty) override;
// AIDL Composer HAL
Error setLayerBrightness(Display display, Layer layer, float brightness) override;
Error setLayerBlockingRegion(Display display, Layer layer,
const std::vector<IComposerClient::Rect>& blocking) override;
Error setBootDisplayConfig(Display displayId, Config) override;
Error clearBootDisplayConfig(Display displayId) override;
Error getPreferredBootDisplayConfig(Display displayId, Config*) override;
Error getDisplayDecorationSupport(Display display,
std::optional<DisplayDecorationSupport>* support) override;
Error setIdleTimerEnabled(Display displayId, std::chrono::milliseconds timeout) override;
Error getPhysicalDisplayOrientation(Display displayId,
AidlTransform* outDisplayOrientation) override;
void onHotplugConnect(Display) override;
void onHotplugDisconnect(Display) override;
Error getHdrConversionCapabilities(std::vector<HdrConversionCapability>*) override;
Error setHdrConversionStrategy(HdrConversionStrategy, Hdr*) override;
Error setRefreshRateChangedCallbackDebugEnabled(Display, bool) override;
Error notifyExpectedPresent(Display, nsecs_t expectedPresentTime,
int32_t frameIntervalNs) override;
private:
// Many public functions above simply write a command into the command
// queue to batch the calls. validateDisplay and presentDisplay will call
// this function to execute the command queue.
Error execute(Display) REQUIRES_SHARED(mMutex);
// returns the default instance name for the given service
static std::string instance(const std::string& serviceName);
ftl::Optional<std::reference_wrapper<ComposerClientWriter>> getWriter(Display)
REQUIRES_SHARED(mMutex);
ftl::Optional<std::reference_wrapper<ComposerClientReader>> getReader(Display)
REQUIRES_SHARED(mMutex);
void addDisplay(Display) EXCLUDES(mMutex);
void removeDisplay(Display) EXCLUDES(mMutex);
void addReader(Display) REQUIRES(mMutex);
void removeReader(Display) REQUIRES(mMutex);
bool getLayerLifecycleBatchCommand();
bool hasMultiThreadedPresentSupport(Display);
// 64KiB minus a small space for metadata such as read/write pointers
static constexpr size_t kWriterInitialSize = 64 * 1024 / sizeof(uint32_t) - 16;
// Max number of buffers that may be cached for a given layer
// We obtain this number by:
// 1. Tightly coupling this cache to the max size of BufferQueue
// 2. Adding an additional slot for the layer caching feature in SurfaceFlinger (see: Planner.h)
static const constexpr uint32_t kMaxLayerBufferCount = BufferQueue::NUM_BUFFER_SLOTS + 1;
// Without DisplayCapability::MULTI_THREADED_PRESENT, we use a single reader
// for all displays. With the capability, we use a separate reader for each
// display.
bool mSingleReader = true;
// Invalid displayId used as a key to mReaders when mSingleReader is true.
static constexpr int64_t kSingleReaderKey = 0;
ui::PhysicalDisplayMap<Display, ComposerClientWriter> mWriters GUARDED_BY(mMutex);
ui::PhysicalDisplayMap<Display, ComposerClientReader> mReaders GUARDED_BY(mMutex);
// Protect access to mWriters and mReaders with a shared_mutex. Adding and
// removing a display require exclusive access, since the iterator or the
// writer/reader may be invalidated. Other calls need shared access while
// using the writer/reader, so they can use their display's writer/reader
// without it being deleted or the iterator being invalidated.
// TODO (b/257958323): Use std::shared_mutex and RAII once they support
// threading annotations.
ftl::SharedMutex mMutex;
int32_t mComposerInterfaceVersion = 1;
bool mEnableLayerCommandBatchingFlag = false;
std::atomic<int64_t> mLayerID = 1;
// Buffer slots for layers are cleared by setting the slot buffer to this buffer.
sp<GraphicBuffer> mClearSlotBuffer;
// Aidl interface
using AidlIComposer = aidl::android::hardware::graphics::composer3::IComposer;
using AidlIComposerClient = aidl::android::hardware::graphics::composer3::IComposerClient;
std::shared_ptr<AidlIComposer> mAidlComposer;
std::shared_ptr<AidlIComposerClient> mAidlComposerClient;
std::shared_ptr<AidlIComposerCallbackWrapper> mAidlComposerCallback;
};
} // namespace android::Hwc2
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