composer: refactor ComposerResources into shared library
composer@2.x-hal is a header library. Any of the shared
libraries it depends on must also be included by anyone
who includes composer@2.x-hal. This means when we add a new
version of mapper, anyone who uses composer@2.x-hal must
also include the new version of the mapper. Vendors
that depend on composer@2.x-hal are broken every time we
add a new mapper.
This patch refactors ComposerResources into a seperate
shared library. ComposerResources contains all of the
mapper code. composer@2.x-hal will depend on the new
composer@2.x-resource hal. Everyone downstream must
also add the composer@2.x-resource file now. However,
they will not be broken again when we add a new mapper
version.
Bug: 136016160
Test: Compiles and boots
Change-Id: I208a954a941ed65938074cd3efb8a6893a2bc1eb
diff --git a/graphics/composer/2.1/utils/hal/Android.bp b/graphics/composer/2.1/utils/hal/Android.bp
index 7a501fc..ea3666d 100644
--- a/graphics/composer/2.1/utils/hal/Android.bp
+++ b/graphics/composer/2.1/utils/hal/Android.bp
@@ -19,14 +19,12 @@
vendor_available: true,
shared_libs: [
"android.hardware.graphics.composer@2.1",
- "android.hardware.graphics.mapper@2.0",
- "android.hardware.graphics.mapper@3.0",
+ "android.hardware.graphics.composer@2.1-resources",
"libhardware", // TODO remove hwcomposer2.h dependency
],
export_shared_lib_headers: [
"android.hardware.graphics.composer@2.1",
- "android.hardware.graphics.mapper@2.0",
- "android.hardware.graphics.mapper@3.0",
+ "android.hardware.graphics.composer@2.1-resources",
"libhardware",
],
header_libs: [
diff --git a/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerClient.h b/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerClient.h
index 095189f..47ead41 100644
--- a/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerClient.h
+++ b/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerClient.h
@@ -27,7 +27,7 @@
#include <android/hardware/graphics/composer/2.1/IComposerClient.h>
#include <composer-hal/2.1/ComposerCommandEngine.h>
#include <composer-hal/2.1/ComposerHal.h>
-#include <composer-hal/2.1/ComposerResources.h>
+#include <composer-resources/2.1/ComposerResources.h>
#include <log/log.h>
namespace android {
diff --git a/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerCommandEngine.h b/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerCommandEngine.h
index d87110a..53b9202 100644
--- a/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerCommandEngine.h
+++ b/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerCommandEngine.h
@@ -24,7 +24,7 @@
#include <composer-command-buffer/2.1/ComposerCommandBuffer.h>
#include <composer-hal/2.1/ComposerHal.h>
-#include <composer-hal/2.1/ComposerResources.h>
+#include <composer-resources/2.1/ComposerResources.h>
// TODO remove hwcomposer_defs.h dependency
#include <hardware/hwcomposer_defs.h>
#include <log/log.h>
@@ -195,7 +195,7 @@
bool closeFence = true;
const native_handle_t* clientTarget;
- ComposerResources::ReplacedBufferHandle replacedClientTarget;
+ ComposerResources::ReplacedHandle replacedClientTarget(true);
auto err = mResources->getDisplayClientTarget(mCurrentDisplay, slot, useCache, rawHandle,
&clientTarget, &replacedClientTarget);
if (err == Error::NONE) {
@@ -226,7 +226,7 @@
bool closeFence = true;
const native_handle_t* outputBuffer;
- ComposerResources::ReplacedBufferHandle replacedOutputBuffer;
+ ComposerResources::ReplacedHandle replacedOutputBuffer(true);
auto err = mResources->getDisplayOutputBuffer(mCurrentDisplay, slot, useCache, rawhandle,
&outputBuffer, &replacedOutputBuffer);
if (err == Error::NONE) {
@@ -369,7 +369,7 @@
bool closeFence = true;
const native_handle_t* buffer;
- ComposerResources::ReplacedBufferHandle replacedBuffer;
+ ComposerResources::ReplacedHandle replacedBuffer(true);
auto err = mResources->getLayerBuffer(mCurrentDisplay, mCurrentLayer, slot, useCache,
rawHandle, &buffer, &replacedBuffer);
if (err == Error::NONE) {
@@ -489,7 +489,7 @@
auto rawHandle = readHandle();
const native_handle_t* stream;
- ComposerResources::ReplacedStreamHandle replacedStream;
+ ComposerResources::ReplacedHandle replacedStream(false);
auto err = mResources->getLayerSidebandStream(mCurrentDisplay, mCurrentLayer, rawHandle,
&stream, &replacedStream);
if (err == Error::NONE) {
diff --git a/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerResources.h b/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerResources.h
deleted file mode 100644
index 18d184e..0000000
--- a/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerResources.h
+++ /dev/null
@@ -1,592 +0,0 @@
-/*
- * Copyright 2018 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
-
-#ifndef LOG_TAG
-#warning "ComposerResources.h included without LOG_TAG"
-#endif
-
-#include <memory>
-#include <mutex>
-#include <unordered_map>
-#include <vector>
-
-#include <android/hardware/graphics/mapper/2.0/IMapper.h>
-#include <android/hardware/graphics/mapper/3.0/IMapper.h>
-#include <log/log.h>
-
-namespace android {
-namespace hardware {
-namespace graphics {
-namespace composer {
-namespace V2_1 {
-namespace hal {
-
-// wrapper for IMapper to import buffers and sideband streams
-class ComposerHandleImporter {
- public:
- bool init() {
- mMapper3 = mapper::V3_0::IMapper::getService();
- if (mMapper3) {
- return true;
- }
- ALOGD_IF(!mMapper3, "failed to get mapper 3.0 service, falling back to mapper 2.0");
-
- mMapper2 = mapper::V2_0::IMapper::getService();
- ALOGE_IF(!mMapper2, "failed to get mapper 2.0 service");
-
- return mMapper2 != nullptr;
- }
-
- Error importBuffer(const native_handle_t* rawHandle, const native_handle_t** outBufferHandle) {
- if (!rawHandle || (!rawHandle->numFds && !rawHandle->numInts)) {
- *outBufferHandle = nullptr;
- return Error::NONE;
- }
-
- const native_handle_t* bufferHandle;
- if (mMapper2) {
- mapper::V2_0::Error error;
- mMapper2->importBuffer(
- rawHandle, [&](const auto& tmpError, const auto& tmpBufferHandle) {
- error = tmpError;
- bufferHandle = static_cast<const native_handle_t*>(tmpBufferHandle);
- });
- if (error != mapper::V2_0::Error::NONE) {
- return Error::NO_RESOURCES;
- }
- }
- if (mMapper3) {
- mapper::V3_0::Error error;
- mMapper3->importBuffer(
- rawHandle, [&](const auto& tmpError, const auto& tmpBufferHandle) {
- error = tmpError;
- bufferHandle = static_cast<const native_handle_t*>(tmpBufferHandle);
- });
- if (error != mapper::V3_0::Error::NONE) {
- return Error::NO_RESOURCES;
- }
- }
-
- *outBufferHandle = bufferHandle;
- return Error::NONE;
- }
-
- void freeBuffer(const native_handle_t* bufferHandle) {
- if (bufferHandle) {
- if (mMapper2) {
- mMapper2->freeBuffer(
- static_cast<void*>(const_cast<native_handle_t*>(bufferHandle)));
- } else if (mMapper3) {
- mMapper3->freeBuffer(
- static_cast<void*>(const_cast<native_handle_t*>(bufferHandle)));
- }
- }
- }
-
- Error importStream(const native_handle_t* rawHandle, const native_handle_t** outStreamHandle) {
- const native_handle_t* streamHandle = nullptr;
- if (rawHandle) {
- streamHandle = native_handle_clone(rawHandle);
- if (!streamHandle) {
- return Error::NO_RESOURCES;
- }
- }
-
- *outStreamHandle = streamHandle;
- return Error::NONE;
- }
-
- void freeStream(const native_handle_t* streamHandle) {
- if (streamHandle) {
- native_handle_close(streamHandle);
- native_handle_delete(const_cast<native_handle_t*>(streamHandle));
- }
- }
-
- private:
- sp<mapper::V2_0::IMapper> mMapper2;
- sp<mapper::V3_0::IMapper> mMapper3;
-};
-
-class ComposerHandleCache {
- public:
- enum class HandleType {
- INVALID,
- BUFFER,
- STREAM,
- };
-
- ComposerHandleCache(ComposerHandleImporter& importer, HandleType type, uint32_t cacheSize)
- : mImporter(importer), mHandleType(type), mHandles(cacheSize, nullptr) {}
-
- // must be initialized later with initCache
- ComposerHandleCache(ComposerHandleImporter& importer) : mImporter(importer) {}
-
- ~ComposerHandleCache() {
- switch (mHandleType) {
- case HandleType::BUFFER:
- for (auto handle : mHandles) {
- mImporter.freeBuffer(handle);
- }
- break;
- case HandleType::STREAM:
- for (auto handle : mHandles) {
- mImporter.freeStream(handle);
- }
- break;
- default:
- break;
- }
- }
-
- ComposerHandleCache(const ComposerHandleCache&) = delete;
- ComposerHandleCache& operator=(const ComposerHandleCache&) = delete;
-
- bool initCache(HandleType type, uint32_t cacheSize) {
- // already initialized
- if (mHandleType != HandleType::INVALID) {
- return false;
- }
-
- mHandleType = type;
- mHandles.resize(cacheSize, nullptr);
-
- return true;
- }
-
- Error lookupCache(uint32_t slot, const native_handle_t** outHandle) {
- if (slot >= 0 && slot < mHandles.size()) {
- *outHandle = mHandles[slot];
- return Error::NONE;
- } else {
- return Error::BAD_PARAMETER;
- }
- }
-
- Error updateCache(uint32_t slot, const native_handle_t* handle,
- const native_handle** outReplacedHandle) {
- if (slot >= 0 && slot < mHandles.size()) {
- auto& cachedHandle = mHandles[slot];
- *outReplacedHandle = cachedHandle;
- cachedHandle = handle;
- return Error::NONE;
- } else {
- return Error::BAD_PARAMETER;
- }
- }
-
- // when fromCache is true, look up in the cache; otherwise, update the cache
- Error getHandle(uint32_t slot, bool fromCache, const native_handle_t* inHandle,
- const native_handle_t** outHandle, const native_handle** outReplacedHandle) {
- if (fromCache) {
- *outReplacedHandle = nullptr;
- return lookupCache(slot, outHandle);
- } else {
- *outHandle = inHandle;
- return updateCache(slot, inHandle, outReplacedHandle);
- }
- }
-
- private:
- ComposerHandleImporter& mImporter;
- HandleType mHandleType = HandleType::INVALID;
- std::vector<const native_handle_t*> mHandles;
-};
-
-// layer resource
-class ComposerLayerResource {
- public:
- ComposerLayerResource(ComposerHandleImporter& importer, uint32_t bufferCacheSize)
- : mBufferCache(importer, ComposerHandleCache::HandleType::BUFFER, bufferCacheSize),
- mSidebandStreamCache(importer, ComposerHandleCache::HandleType::STREAM, 1) {}
-
- virtual ~ComposerLayerResource() = default;
-
- Error getBuffer(uint32_t slot, bool fromCache, const native_handle_t* inHandle,
- const native_handle_t** outHandle, const native_handle** outReplacedHandle) {
- return mBufferCache.getHandle(slot, fromCache, inHandle, outHandle, outReplacedHandle);
- }
-
- Error getSidebandStream(uint32_t slot, bool fromCache, const native_handle_t* inHandle,
- const native_handle_t** outHandle,
- const native_handle** outReplacedHandle) {
- return mSidebandStreamCache.getHandle(slot, fromCache, inHandle, outHandle,
- outReplacedHandle);
- }
-
- protected:
- ComposerHandleCache mBufferCache;
- ComposerHandleCache mSidebandStreamCache;
-};
-
-// display resource
-class ComposerDisplayResource {
- public:
- enum class DisplayType {
- PHYSICAL,
- VIRTUAL,
- };
-
- virtual ~ComposerDisplayResource() = default;
-
- ComposerDisplayResource(DisplayType type, ComposerHandleImporter& importer,
- uint32_t outputBufferCacheSize)
- : mType(type),
- mClientTargetCache(importer),
- mOutputBufferCache(importer, ComposerHandleCache::HandleType::BUFFER,
- outputBufferCacheSize),
- mMustValidate(true) {}
-
- bool initClientTargetCache(uint32_t cacheSize) {
- return mClientTargetCache.initCache(ComposerHandleCache::HandleType::BUFFER, cacheSize);
- }
-
- bool isVirtual() const { return mType == DisplayType::VIRTUAL; }
-
- Error getClientTarget(uint32_t slot, bool fromCache, const native_handle_t* inHandle,
- const native_handle_t** outHandle,
- const native_handle** outReplacedHandle) {
- return mClientTargetCache.getHandle(slot, fromCache, inHandle, outHandle,
- outReplacedHandle);
- }
-
- Error getOutputBuffer(uint32_t slot, bool fromCache, const native_handle_t* inHandle,
- const native_handle_t** outHandle,
- const native_handle** outReplacedHandle) {
- return mOutputBufferCache.getHandle(slot, fromCache, inHandle, outHandle,
- outReplacedHandle);
- }
-
- bool addLayer(Layer layer, std::unique_ptr<ComposerLayerResource> layerResource) {
- auto result = mLayerResources.emplace(layer, std::move(layerResource));
- return result.second;
- }
-
- bool removeLayer(Layer layer) { return mLayerResources.erase(layer) > 0; }
-
- ComposerLayerResource* findLayerResource(Layer layer) {
- auto layerIter = mLayerResources.find(layer);
- if (layerIter == mLayerResources.end()) {
- return nullptr;
- }
-
- return layerIter->second.get();
- }
-
- std::vector<Layer> getLayers() const {
- std::vector<Layer> layers;
- layers.reserve(mLayerResources.size());
- for (const auto& layerKey : mLayerResources) {
- layers.push_back(layerKey.first);
- }
- return layers;
- }
-
- void setMustValidateState(bool mustValidate) { mMustValidate = mustValidate; }
-
- bool mustValidate() const { return mMustValidate; }
-
- protected:
- const DisplayType mType;
- ComposerHandleCache mClientTargetCache;
- ComposerHandleCache mOutputBufferCache;
- bool mMustValidate;
-
- std::unordered_map<Layer, std::unique_ptr<ComposerLayerResource>> mLayerResources;
-};
-
-class ComposerResources {
- private:
- template <bool isBuffer>
- class ReplacedHandle;
-
- public:
- static std::unique_ptr<ComposerResources> create() {
- auto resources = std::make_unique<ComposerResources>();
- return resources->init() ? std::move(resources) : nullptr;
- }
-
- ComposerResources() = default;
- virtual ~ComposerResources() = default;
-
- bool init() { return mImporter.init(); }
-
- using RemoveDisplay =
- std::function<void(Display display, bool isVirtual, const std::vector<Layer>& layers)>;
- void clear(RemoveDisplay removeDisplay) {
- std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
- for (const auto& displayKey : mDisplayResources) {
- Display display = displayKey.first;
- const ComposerDisplayResource& displayResource = *displayKey.second;
- removeDisplay(display, displayResource.isVirtual(), displayResource.getLayers());
- }
- mDisplayResources.clear();
- }
-
- Error addPhysicalDisplay(Display display) {
- auto displayResource =
- createDisplayResource(ComposerDisplayResource::DisplayType::PHYSICAL, 0);
-
- std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
- auto result = mDisplayResources.emplace(display, std::move(displayResource));
- return result.second ? Error::NONE : Error::BAD_DISPLAY;
- }
-
- Error addVirtualDisplay(Display display, uint32_t outputBufferCacheSize) {
- auto displayResource = createDisplayResource(ComposerDisplayResource::DisplayType::VIRTUAL,
- outputBufferCacheSize);
-
- std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
- auto result = mDisplayResources.emplace(display, std::move(displayResource));
- return result.second ? Error::NONE : Error::BAD_DISPLAY;
- }
-
- Error removeDisplay(Display display) {
- std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
- return mDisplayResources.erase(display) > 0 ? Error::NONE : Error::BAD_DISPLAY;
- }
-
- Error setDisplayClientTargetCacheSize(Display display, uint32_t clientTargetCacheSize) {
- std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
- ComposerDisplayResource* displayResource = findDisplayResourceLocked(display);
- if (!displayResource) {
- return Error::BAD_DISPLAY;
- }
-
- return displayResource->initClientTargetCache(clientTargetCacheSize) ? Error::NONE
- : Error::BAD_PARAMETER;
- }
-
- Error addLayer(Display display, Layer layer, uint32_t bufferCacheSize) {
- auto layerResource = createLayerResource(bufferCacheSize);
-
- std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
- ComposerDisplayResource* displayResource = findDisplayResourceLocked(display);
- if (!displayResource) {
- return Error::BAD_DISPLAY;
- }
-
- return displayResource->addLayer(layer, std::move(layerResource)) ? Error::NONE
- : Error::BAD_LAYER;
- }
-
- Error removeLayer(Display display, Layer layer) {
- std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
- ComposerDisplayResource* displayResource = findDisplayResourceLocked(display);
- if (!displayResource) {
- return Error::BAD_DISPLAY;
- }
-
- return displayResource->removeLayer(layer) ? Error::NONE : Error::BAD_LAYER;
- }
-
- using ReplacedBufferHandle = ReplacedHandle<true>;
- using ReplacedStreamHandle = ReplacedHandle<false>;
-
- Error getDisplayClientTarget(Display display, uint32_t slot, bool fromCache,
- const native_handle_t* rawHandle,
- const native_handle_t** outBufferHandle,
- ReplacedBufferHandle* outReplacedBuffer) {
- return getHandle<Cache::CLIENT_TARGET>(display, 0, slot, fromCache, rawHandle,
- outBufferHandle, outReplacedBuffer);
- }
-
- Error getDisplayOutputBuffer(Display display, uint32_t slot, bool fromCache,
- const native_handle_t* rawHandle,
- const native_handle_t** outBufferHandle,
- ReplacedBufferHandle* outReplacedBuffer) {
- return getHandle<Cache::OUTPUT_BUFFER>(display, 0, slot, fromCache, rawHandle,
- outBufferHandle, outReplacedBuffer);
- }
-
- Error getLayerBuffer(Display display, Layer layer, uint32_t slot, bool fromCache,
- const native_handle_t* rawHandle, const native_handle_t** outBufferHandle,
- ReplacedBufferHandle* outReplacedBuffer) {
- return getHandle<Cache::LAYER_BUFFER>(display, layer, slot, fromCache, rawHandle,
- outBufferHandle, outReplacedBuffer);
- }
-
- Error getLayerSidebandStream(Display display, Layer layer, const native_handle_t* rawHandle,
- const native_handle_t** outStreamHandle,
- ReplacedStreamHandle* outReplacedStream) {
- return getHandle<Cache::LAYER_SIDEBAND_STREAM>(display, layer, 0, false, rawHandle,
- outStreamHandle, outReplacedStream);
- }
-
- void setDisplayMustValidateState(Display display, bool mustValidate) {
- std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
- auto* displayResource = findDisplayResourceLocked(display);
- if (displayResource) {
- displayResource->setMustValidateState(mustValidate);
- }
- }
-
- bool mustValidateDisplay(Display display) {
- std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
- auto* displayResource = findDisplayResourceLocked(display);
- if (displayResource) {
- return displayResource->mustValidate();
- }
- return false;
- }
-
- protected:
- virtual std::unique_ptr<ComposerDisplayResource> createDisplayResource(
- ComposerDisplayResource::DisplayType type, uint32_t outputBufferCacheSize) {
- return std::make_unique<ComposerDisplayResource>(type, mImporter, outputBufferCacheSize);
- }
-
- virtual std::unique_ptr<ComposerLayerResource> createLayerResource(uint32_t bufferCacheSize) {
- return std::make_unique<ComposerLayerResource>(mImporter, bufferCacheSize);
- }
-
- ComposerDisplayResource* findDisplayResourceLocked(Display display) {
- auto iter = mDisplayResources.find(display);
- if (iter == mDisplayResources.end()) {
- return nullptr;
- }
- return iter->second.get();
- }
-
- ComposerHandleImporter mImporter;
-
- std::mutex mDisplayResourcesMutex;
- std::unordered_map<Display, std::unique_ptr<ComposerDisplayResource>> mDisplayResources;
-
- private:
- enum class Cache {
- CLIENT_TARGET,
- OUTPUT_BUFFER,
- LAYER_BUFFER,
- LAYER_SIDEBAND_STREAM,
- };
-
- // When a buffer in the cache is replaced by a new one, we must keep it
- // alive until it has been replaced in ComposerHal.
- template <bool isBuffer>
- class ReplacedHandle {
- public:
- ReplacedHandle() = default;
- ReplacedHandle(const ReplacedHandle&) = delete;
- ReplacedHandle& operator=(const ReplacedHandle&) = delete;
-
- ~ReplacedHandle() { reset(); }
-
- void reset(ComposerHandleImporter* importer = nullptr,
- const native_handle_t* handle = nullptr) {
- if (mHandle) {
- if (isBuffer) {
- mImporter->freeBuffer(mHandle);
- } else {
- mImporter->freeStream(mHandle);
- }
- }
-
- mImporter = importer;
- mHandle = handle;
- }
-
- private:
- ComposerHandleImporter* mImporter = nullptr;
- const native_handle_t* mHandle = nullptr;
- };
-
- template <Cache cache, bool isBuffer>
- Error getHandle(Display display, Layer layer, uint32_t slot, bool fromCache,
- const native_handle_t* rawHandle, const native_handle_t** outHandle,
- ReplacedHandle<isBuffer>* outReplacedHandle) {
- Error error;
-
- // import the raw handle (or ignore raw handle when fromCache is true)
- const native_handle_t* importedHandle = nullptr;
- if (!fromCache) {
- error = (isBuffer) ? mImporter.importBuffer(rawHandle, &importedHandle)
- : mImporter.importStream(rawHandle, &importedHandle);
- if (error != Error::NONE) {
- return error;
- }
- }
-
- std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
-
- // find display/layer resource
- const bool needLayerResource =
- (cache == Cache::LAYER_BUFFER || cache == Cache::LAYER_SIDEBAND_STREAM);
- ComposerDisplayResource* displayResource = findDisplayResourceLocked(display);
- ComposerLayerResource* layerResource = (displayResource && needLayerResource)
- ? displayResource->findLayerResource(layer)
- : nullptr;
-
- // lookup or update cache
- const native_handle_t* replacedHandle = nullptr;
- if (displayResource && (!needLayerResource || layerResource)) {
- switch (cache) {
- case Cache::CLIENT_TARGET:
- error = displayResource->getClientTarget(slot, fromCache, importedHandle,
- outHandle, &replacedHandle);
- break;
- case Cache::OUTPUT_BUFFER:
- error = displayResource->getOutputBuffer(slot, fromCache, importedHandle,
- outHandle, &replacedHandle);
- break;
- case Cache::LAYER_BUFFER:
- error = layerResource->getBuffer(slot, fromCache, importedHandle, outHandle,
- &replacedHandle);
- break;
- case Cache::LAYER_SIDEBAND_STREAM:
- error = layerResource->getSidebandStream(slot, fromCache, importedHandle,
- outHandle, &replacedHandle);
- break;
- default:
- error = Error::BAD_PARAMETER;
- break;
- }
-
- if (error != Error::NONE) {
- ALOGW("invalid cache %d slot %d", int(cache), int(slot));
- }
- } else if (!displayResource) {
- error = Error::BAD_DISPLAY;
- } else {
- error = Error::BAD_LAYER;
- }
-
- // clean up on errors
- if (error != Error::NONE) {
- if (!fromCache) {
- if (isBuffer) {
- mImporter.freeBuffer(importedHandle);
- } else {
- mImporter.freeStream(importedHandle);
- }
- }
- return error;
- }
-
- outReplacedHandle->reset(&mImporter, replacedHandle);
-
- return Error::NONE;
- }
-};
-
-} // namespace hal
-} // namespace V2_1
-} // namespace composer
-} // namespace graphics
-} // namespace hardware
-} // namespace android
diff --git a/graphics/composer/2.1/utils/resources/Android.bp b/graphics/composer/2.1/utils/resources/Android.bp
new file mode 100644
index 0000000..e7ba458
--- /dev/null
+++ b/graphics/composer/2.1/utils/resources/Android.bp
@@ -0,0 +1,49 @@
+//
+// Copyright (C) 2019 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.
+
+cc_library_shared {
+ name: "android.hardware.graphics.composer@2.1-resources",
+ defaults: ["hidl_defaults"],
+ vendor_available: true,
+ shared_libs: [
+ "android.hardware.graphics.composer@2.1",
+ "android.hardware.graphics.mapper@2.0",
+ "android.hardware.graphics.mapper@3.0",
+ "libcutils",
+ "libhardware", // TODO remove hwcomposer2.h dependency
+ "libhidlbase",
+ "liblog",
+ "libutils",
+ ],
+ export_shared_lib_headers: [
+ "android.hardware.graphics.composer@2.1",
+ "android.hardware.graphics.mapper@2.0",
+ "android.hardware.graphics.mapper@3.0",
+ "libhardware",
+ "libhidlbase",
+ "liblog",
+ "libutils",
+ ],
+ header_libs: [
+ "android.hardware.graphics.composer@2.1-command-buffer",
+ ],
+ export_header_lib_headers: [
+ "android.hardware.graphics.composer@2.1-command-buffer",
+ ],
+ export_include_dirs: ["include"],
+ srcs: [
+ "ComposerResources.cpp",
+ ],
+}
diff --git a/graphics/composer/2.1/utils/resources/ComposerResources.cpp b/graphics/composer/2.1/utils/resources/ComposerResources.cpp
new file mode 100644
index 0000000..d28eedc
--- /dev/null
+++ b/graphics/composer/2.1/utils/resources/ComposerResources.cpp
@@ -0,0 +1,485 @@
+/*
+ * Copyright 2019 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_TAG "ComposerResources"
+
+#include "composer-resources/2.1/ComposerResources.h"
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace composer {
+namespace V2_1 {
+namespace hal {
+
+bool ComposerHandleImporter::init() {
+ mMapper3 = mapper::V3_0::IMapper::getService();
+ if (mMapper3) {
+ return true;
+ }
+ ALOGI_IF(!mMapper3, "failed to get mapper 3.0 service, falling back to mapper 2.0");
+
+ mMapper2 = mapper::V2_0::IMapper::getService();
+ ALOGE_IF(!mMapper2, "failed to get mapper 2.0 service");
+
+ return mMapper2 != nullptr;
+}
+
+Error ComposerHandleImporter::importBuffer(const native_handle_t* rawHandle,
+ const native_handle_t** outBufferHandle) {
+ if (!rawHandle || (!rawHandle->numFds && !rawHandle->numInts)) {
+ *outBufferHandle = nullptr;
+ return Error::NONE;
+ }
+
+ const native_handle_t* bufferHandle;
+ if (mMapper2) {
+ mapper::V2_0::Error error;
+ mMapper2->importBuffer(rawHandle, [&](const auto& tmpError, const auto& tmpBufferHandle) {
+ error = tmpError;
+ bufferHandle = static_cast<const native_handle_t*>(tmpBufferHandle);
+ });
+ if (error != mapper::V2_0::Error::NONE) {
+ return Error::NO_RESOURCES;
+ }
+ }
+ if (mMapper3) {
+ mapper::V3_0::Error error;
+ mMapper3->importBuffer(rawHandle, [&](const auto& tmpError, const auto& tmpBufferHandle) {
+ error = tmpError;
+ bufferHandle = static_cast<const native_handle_t*>(tmpBufferHandle);
+ });
+ if (error != mapper::V3_0::Error::NONE) {
+ return Error::NO_RESOURCES;
+ }
+ }
+
+ *outBufferHandle = bufferHandle;
+ return Error::NONE;
+}
+
+void ComposerHandleImporter::freeBuffer(const native_handle_t* bufferHandle) {
+ if (bufferHandle) {
+ if (mMapper2) {
+ mMapper2->freeBuffer(static_cast<void*>(const_cast<native_handle_t*>(bufferHandle)));
+ } else if (mMapper3) {
+ mMapper3->freeBuffer(static_cast<void*>(const_cast<native_handle_t*>(bufferHandle)));
+ }
+ }
+}
+
+Error ComposerHandleImporter::importStream(const native_handle_t* rawHandle,
+ const native_handle_t** outStreamHandle) {
+ const native_handle_t* streamHandle = nullptr;
+ if (rawHandle) {
+ streamHandle = native_handle_clone(rawHandle);
+ if (!streamHandle) {
+ return Error::NO_RESOURCES;
+ }
+ }
+
+ *outStreamHandle = streamHandle;
+ return Error::NONE;
+}
+
+void ComposerHandleImporter::freeStream(const native_handle_t* streamHandle) {
+ if (streamHandle) {
+ native_handle_close(streamHandle);
+ native_handle_delete(const_cast<native_handle_t*>(streamHandle));
+ }
+}
+
+ComposerHandleCache::ComposerHandleCache(ComposerHandleImporter& importer, HandleType type,
+ uint32_t cacheSize)
+ : mImporter(importer), mHandleType(type), mHandles(cacheSize, nullptr) {}
+
+// must be initialized later with initCache
+ComposerHandleCache::ComposerHandleCache(ComposerHandleImporter& importer) : mImporter(importer) {}
+
+ComposerHandleCache::~ComposerHandleCache() {
+ switch (mHandleType) {
+ case HandleType::BUFFER:
+ for (auto handle : mHandles) {
+ mImporter.freeBuffer(handle);
+ }
+ break;
+ case HandleType::STREAM:
+ for (auto handle : mHandles) {
+ mImporter.freeStream(handle);
+ }
+ break;
+ default:
+ break;
+ }
+}
+
+bool ComposerHandleCache::initCache(HandleType type, uint32_t cacheSize) {
+ // already initialized
+ if (mHandleType != HandleType::INVALID) {
+ return false;
+ }
+
+ mHandleType = type;
+ mHandles.resize(cacheSize, nullptr);
+
+ return true;
+}
+
+Error ComposerHandleCache::lookupCache(uint32_t slot, const native_handle_t** outHandle) {
+ if (slot >= 0 && slot < mHandles.size()) {
+ *outHandle = mHandles[slot];
+ return Error::NONE;
+ } else {
+ return Error::BAD_PARAMETER;
+ }
+}
+
+Error ComposerHandleCache::updateCache(uint32_t slot, const native_handle_t* handle,
+ const native_handle** outReplacedHandle) {
+ if (slot >= 0 && slot < mHandles.size()) {
+ auto& cachedHandle = mHandles[slot];
+ *outReplacedHandle = cachedHandle;
+ cachedHandle = handle;
+ return Error::NONE;
+ } else {
+ return Error::BAD_PARAMETER;
+ }
+}
+
+// when fromCache is true, look up in the cache; otherwise, update the cache
+Error ComposerHandleCache::getHandle(uint32_t slot, bool fromCache, const native_handle_t* inHandle,
+ const native_handle_t** outHandle,
+ const native_handle** outReplacedHandle) {
+ if (fromCache) {
+ *outReplacedHandle = nullptr;
+ return lookupCache(slot, outHandle);
+ } else {
+ *outHandle = inHandle;
+ return updateCache(slot, inHandle, outReplacedHandle);
+ }
+}
+
+ComposerLayerResource::ComposerLayerResource(ComposerHandleImporter& importer,
+ uint32_t bufferCacheSize)
+ : mBufferCache(importer, ComposerHandleCache::HandleType::BUFFER, bufferCacheSize),
+ mSidebandStreamCache(importer, ComposerHandleCache::HandleType::STREAM, 1) {}
+
+Error ComposerLayerResource::getBuffer(uint32_t slot, bool fromCache,
+ const native_handle_t* inHandle,
+ const native_handle_t** outHandle,
+ const native_handle** outReplacedHandle) {
+ return mBufferCache.getHandle(slot, fromCache, inHandle, outHandle, outReplacedHandle);
+}
+
+Error ComposerLayerResource::getSidebandStream(uint32_t slot, bool fromCache,
+ const native_handle_t* inHandle,
+ const native_handle_t** outHandle,
+ const native_handle** outReplacedHandle) {
+ return mSidebandStreamCache.getHandle(slot, fromCache, inHandle, outHandle, outReplacedHandle);
+}
+
+ComposerDisplayResource::ComposerDisplayResource(DisplayType type, ComposerHandleImporter& importer,
+ uint32_t outputBufferCacheSize)
+ : mType(type),
+ mClientTargetCache(importer),
+ mOutputBufferCache(importer, ComposerHandleCache::HandleType::BUFFER, outputBufferCacheSize),
+ mMustValidate(true) {}
+
+bool ComposerDisplayResource::initClientTargetCache(uint32_t cacheSize) {
+ return mClientTargetCache.initCache(ComposerHandleCache::HandleType::BUFFER, cacheSize);
+}
+
+bool ComposerDisplayResource::isVirtual() const {
+ return mType == DisplayType::VIRTUAL;
+}
+
+Error ComposerDisplayResource::getClientTarget(uint32_t slot, bool fromCache,
+ const native_handle_t* inHandle,
+ const native_handle_t** outHandle,
+ const native_handle** outReplacedHandle) {
+ return mClientTargetCache.getHandle(slot, fromCache, inHandle, outHandle, outReplacedHandle);
+}
+
+Error ComposerDisplayResource::getOutputBuffer(uint32_t slot, bool fromCache,
+ const native_handle_t* inHandle,
+ const native_handle_t** outHandle,
+ const native_handle** outReplacedHandle) {
+ return mOutputBufferCache.getHandle(slot, fromCache, inHandle, outHandle, outReplacedHandle);
+}
+
+bool ComposerDisplayResource::addLayer(Layer layer,
+ std::unique_ptr<ComposerLayerResource> layerResource) {
+ auto result = mLayerResources.emplace(layer, std::move(layerResource));
+ return result.second;
+}
+
+bool ComposerDisplayResource::removeLayer(Layer layer) {
+ return mLayerResources.erase(layer) > 0;
+}
+
+ComposerLayerResource* ComposerDisplayResource::findLayerResource(Layer layer) {
+ auto layerIter = mLayerResources.find(layer);
+ if (layerIter == mLayerResources.end()) {
+ return nullptr;
+ }
+
+ return layerIter->second.get();
+}
+
+std::vector<Layer> ComposerDisplayResource::getLayers() const {
+ std::vector<Layer> layers;
+ layers.reserve(mLayerResources.size());
+ for (const auto& layerKey : mLayerResources) {
+ layers.push_back(layerKey.first);
+ }
+ return layers;
+}
+
+void ComposerDisplayResource::setMustValidateState(bool mustValidate) {
+ mMustValidate = mustValidate;
+}
+
+bool ComposerDisplayResource::mustValidate() const {
+ return mMustValidate;
+}
+
+std::unique_ptr<ComposerResources> ComposerResources::create() {
+ auto resources = std::make_unique<ComposerResources>();
+ return resources->init() ? std::move(resources) : nullptr;
+}
+
+bool ComposerResources::init() {
+ return mImporter.init();
+}
+
+void ComposerResources::clear(RemoveDisplay removeDisplay) {
+ std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
+ for (const auto& displayKey : mDisplayResources) {
+ Display display = displayKey.first;
+ const ComposerDisplayResource& displayResource = *displayKey.second;
+ removeDisplay(display, displayResource.isVirtual(), displayResource.getLayers());
+ }
+ mDisplayResources.clear();
+}
+
+Error ComposerResources::addPhysicalDisplay(Display display) {
+ auto displayResource = createDisplayResource(ComposerDisplayResource::DisplayType::PHYSICAL, 0);
+
+ std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
+ auto result = mDisplayResources.emplace(display, std::move(displayResource));
+ return result.second ? Error::NONE : Error::BAD_DISPLAY;
+}
+
+Error ComposerResources::addVirtualDisplay(Display display, uint32_t outputBufferCacheSize) {
+ auto displayResource = createDisplayResource(ComposerDisplayResource::DisplayType::VIRTUAL,
+ outputBufferCacheSize);
+
+ std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
+ auto result = mDisplayResources.emplace(display, std::move(displayResource));
+ return result.second ? Error::NONE : Error::BAD_DISPLAY;
+}
+
+Error ComposerResources::removeDisplay(Display display) {
+ std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
+ return mDisplayResources.erase(display) > 0 ? Error::NONE : Error::BAD_DISPLAY;
+}
+
+Error ComposerResources::setDisplayClientTargetCacheSize(Display display,
+ uint32_t clientTargetCacheSize) {
+ std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
+ ComposerDisplayResource* displayResource = findDisplayResourceLocked(display);
+ if (!displayResource) {
+ return Error::BAD_DISPLAY;
+ }
+
+ return displayResource->initClientTargetCache(clientTargetCacheSize) ? Error::NONE
+ : Error::BAD_PARAMETER;
+}
+
+Error ComposerResources::addLayer(Display display, Layer layer, uint32_t bufferCacheSize) {
+ auto layerResource = createLayerResource(bufferCacheSize);
+
+ std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
+ ComposerDisplayResource* displayResource = findDisplayResourceLocked(display);
+ if (!displayResource) {
+ return Error::BAD_DISPLAY;
+ }
+
+ return displayResource->addLayer(layer, std::move(layerResource)) ? Error::NONE
+ : Error::BAD_LAYER;
+}
+
+Error ComposerResources::removeLayer(Display display, Layer layer) {
+ std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
+ ComposerDisplayResource* displayResource = findDisplayResourceLocked(display);
+ if (!displayResource) {
+ return Error::BAD_DISPLAY;
+ }
+
+ return displayResource->removeLayer(layer) ? Error::NONE : Error::BAD_LAYER;
+}
+
+Error ComposerResources::getDisplayClientTarget(Display display, uint32_t slot, bool fromCache,
+ const native_handle_t* rawHandle,
+ const native_handle_t** outBufferHandle,
+ ReplacedHandle* outReplacedBuffer) {
+ return getHandle(display, 0, slot, Cache::CLIENT_TARGET, fromCache, rawHandle, outBufferHandle,
+ outReplacedBuffer);
+}
+
+Error ComposerResources::getDisplayOutputBuffer(Display display, uint32_t slot, bool fromCache,
+ const native_handle_t* rawHandle,
+ const native_handle_t** outBufferHandle,
+ ReplacedHandle* outReplacedBuffer) {
+ return getHandle(display, 0, slot, Cache::OUTPUT_BUFFER, fromCache, rawHandle, outBufferHandle,
+ outReplacedBuffer);
+}
+
+Error ComposerResources::getLayerBuffer(Display display, Layer layer, uint32_t slot, bool fromCache,
+ const native_handle_t* rawHandle,
+ const native_handle_t** outBufferHandle,
+ ReplacedHandle* outReplacedBuffer) {
+ return getHandle(display, layer, slot, Cache::LAYER_BUFFER, fromCache, rawHandle,
+ outBufferHandle, outReplacedBuffer);
+}
+
+Error ComposerResources::getLayerSidebandStream(Display display, Layer layer,
+ const native_handle_t* rawHandle,
+ const native_handle_t** outStreamHandle,
+ ReplacedHandle* outReplacedStream) {
+ return getHandle(display, layer, 0, Cache::LAYER_SIDEBAND_STREAM, false, rawHandle,
+ outStreamHandle, outReplacedStream);
+}
+
+void ComposerResources::setDisplayMustValidateState(Display display, bool mustValidate) {
+ std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
+ auto* displayResource = findDisplayResourceLocked(display);
+ if (displayResource) {
+ displayResource->setMustValidateState(mustValidate);
+ }
+}
+
+bool ComposerResources::mustValidateDisplay(Display display) {
+ std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
+ auto* displayResource = findDisplayResourceLocked(display);
+ if (displayResource) {
+ return displayResource->mustValidate();
+ }
+ return false;
+}
+
+std::unique_ptr<ComposerDisplayResource> ComposerResources::createDisplayResource(
+ ComposerDisplayResource::DisplayType type, uint32_t outputBufferCacheSize) {
+ return std::make_unique<ComposerDisplayResource>(type, mImporter, outputBufferCacheSize);
+}
+
+std::unique_ptr<ComposerLayerResource> ComposerResources::createLayerResource(
+ uint32_t bufferCacheSize) {
+ return std::make_unique<ComposerLayerResource>(mImporter, bufferCacheSize);
+}
+
+ComposerDisplayResource* ComposerResources::findDisplayResourceLocked(Display display) {
+ auto iter = mDisplayResources.find(display);
+ if (iter == mDisplayResources.end()) {
+ return nullptr;
+ }
+ return iter->second.get();
+}
+
+Error ComposerResources::getHandle(Display display, Layer layer, uint32_t slot, Cache cache,
+ bool fromCache, const native_handle_t* rawHandle,
+ const native_handle_t** outHandle,
+ ReplacedHandle* outReplacedHandle) {
+ Error error;
+
+ // import the raw handle (or ignore raw handle when fromCache is true)
+ const native_handle_t* importedHandle = nullptr;
+ if (!fromCache) {
+ error = (outReplacedHandle->isBuffer())
+ ? mImporter.importBuffer(rawHandle, &importedHandle)
+ : mImporter.importStream(rawHandle, &importedHandle);
+ if (error != Error::NONE) {
+ return error;
+ }
+ }
+
+ std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
+
+ // find display/layer resource
+ const bool needLayerResource = (cache == ComposerResources::Cache::LAYER_BUFFER ||
+ cache == ComposerResources::Cache::LAYER_SIDEBAND_STREAM);
+ ComposerDisplayResource* displayResource = findDisplayResourceLocked(display);
+ ComposerLayerResource* layerResource = (displayResource && needLayerResource)
+ ? displayResource->findLayerResource(layer)
+ : nullptr;
+
+ // lookup or update cache
+ const native_handle_t* replacedHandle = nullptr;
+ if (displayResource && (!needLayerResource || layerResource)) {
+ switch (cache) {
+ case ComposerResources::Cache::CLIENT_TARGET:
+ error = displayResource->getClientTarget(slot, fromCache, importedHandle, outHandle,
+ &replacedHandle);
+ break;
+ case ComposerResources::Cache::OUTPUT_BUFFER:
+ error = displayResource->getOutputBuffer(slot, fromCache, importedHandle, outHandle,
+ &replacedHandle);
+ break;
+ case ComposerResources::Cache::LAYER_BUFFER:
+ error = layerResource->getBuffer(slot, fromCache, importedHandle, outHandle,
+ &replacedHandle);
+ break;
+ case ComposerResources::Cache::LAYER_SIDEBAND_STREAM:
+ error = layerResource->getSidebandStream(slot, fromCache, importedHandle, outHandle,
+ &replacedHandle);
+ break;
+ default:
+ error = Error::BAD_PARAMETER;
+ break;
+ }
+
+ if (error != Error::NONE) {
+ ALOGW("invalid cache %d slot %d", int(cache), int(slot));
+ }
+ } else if (!displayResource) {
+ error = Error::BAD_DISPLAY;
+ } else {
+ error = Error::BAD_LAYER;
+ }
+
+ // clean up on errors
+ if (error != Error::NONE) {
+ if (!fromCache) {
+ if (outReplacedHandle->isBuffer()) {
+ mImporter.freeBuffer(importedHandle);
+ } else {
+ mImporter.freeStream(importedHandle);
+ }
+ }
+ return error;
+ }
+
+ outReplacedHandle->reset(&mImporter, replacedHandle);
+
+ return Error::NONE;
+}
+
+} // namespace hal
+} // namespace V2_1
+} // namespace composer
+} // namespace graphics
+} // namespace hardware
+} // namespace android
diff --git a/graphics/composer/2.1/utils/resources/include/composer-resources/2.1/ComposerResources.h b/graphics/composer/2.1/utils/resources/include/composer-resources/2.1/ComposerResources.h
new file mode 100644
index 0000000..b9b7138
--- /dev/null
+++ b/graphics/composer/2.1/utils/resources/include/composer-resources/2.1/ComposerResources.h
@@ -0,0 +1,258 @@
+/*
+ * Copyright 2018 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
+
+#ifndef LOG_TAG
+#warning "ComposerResources.h included without LOG_TAG"
+#endif
+
+#include <memory>
+#include <mutex>
+#include <unordered_map>
+#include <vector>
+
+#include <android/hardware/graphics/composer/2.1/types.h>
+
+#include <android/hardware/graphics/mapper/2.0/IMapper.h>
+#include <android/hardware/graphics/mapper/3.0/IMapper.h>
+#include <log/log.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace composer {
+namespace V2_1 {
+namespace hal {
+
+// wrapper for IMapper to import buffers and sideband streams
+class ComposerHandleImporter {
+ public:
+ bool init();
+
+ Error importBuffer(const native_handle_t* rawHandle, const native_handle_t** outBufferHandle);
+ void freeBuffer(const native_handle_t* bufferHandle);
+ Error importStream(const native_handle_t* rawHandle, const native_handle_t** outStreamHandle);
+ void freeStream(const native_handle_t* streamHandle);
+
+ private:
+ sp<mapper::V2_0::IMapper> mMapper2;
+ sp<mapper::V3_0::IMapper> mMapper3;
+};
+
+class ComposerHandleCache {
+ public:
+ enum class HandleType {
+ INVALID,
+ BUFFER,
+ STREAM,
+ };
+
+ ComposerHandleCache(ComposerHandleImporter& importer, HandleType type, uint32_t cacheSize);
+
+ // must be initialized later with initCache
+ ComposerHandleCache(ComposerHandleImporter& importer);
+
+ ~ComposerHandleCache();
+
+ ComposerHandleCache(const ComposerHandleCache&) = delete;
+ ComposerHandleCache& operator=(const ComposerHandleCache&) = delete;
+
+ bool initCache(HandleType type, uint32_t cacheSize);
+ Error lookupCache(uint32_t slot, const native_handle_t** outHandle);
+ Error updateCache(uint32_t slot, const native_handle_t* handle,
+ const native_handle** outReplacedHandle);
+
+ // when fromCache is true, look up in the cache; otherwise, update the cache
+ Error getHandle(uint32_t slot, bool fromCache, const native_handle_t* inHandle,
+ const native_handle_t** outHandle, const native_handle** outReplacedHandle);
+
+ private:
+ ComposerHandleImporter& mImporter;
+ HandleType mHandleType = HandleType::INVALID;
+ std::vector<const native_handle_t*> mHandles;
+};
+
+// layer resource
+class ComposerLayerResource {
+ public:
+ ComposerLayerResource(ComposerHandleImporter& importer, uint32_t bufferCacheSize);
+
+ virtual ~ComposerLayerResource() = default;
+
+ Error getBuffer(uint32_t slot, bool fromCache, const native_handle_t* inHandle,
+ const native_handle_t** outHandle, const native_handle** outReplacedHandle);
+ Error getSidebandStream(uint32_t slot, bool fromCache, const native_handle_t* inHandle,
+ const native_handle_t** outHandle,
+ const native_handle** outReplacedHandle);
+
+ protected:
+ ComposerHandleCache mBufferCache;
+ ComposerHandleCache mSidebandStreamCache;
+};
+
+// display resource
+class ComposerDisplayResource {
+ public:
+ enum class DisplayType {
+ PHYSICAL,
+ VIRTUAL,
+ };
+
+ virtual ~ComposerDisplayResource() = default;
+
+ ComposerDisplayResource(DisplayType type, ComposerHandleImporter& importer,
+ uint32_t outputBufferCacheSize);
+
+ bool initClientTargetCache(uint32_t cacheSize);
+
+ bool isVirtual() const;
+
+ Error getClientTarget(uint32_t slot, bool fromCache, const native_handle_t* inHandle,
+ const native_handle_t** outHandle,
+ const native_handle** outReplacedHandle);
+
+ Error getOutputBuffer(uint32_t slot, bool fromCache, const native_handle_t* inHandle,
+ const native_handle_t** outHandle,
+ const native_handle** outReplacedHandle);
+
+ bool addLayer(Layer layer, std::unique_ptr<ComposerLayerResource> layerResource);
+ bool removeLayer(Layer layer);
+ ComposerLayerResource* findLayerResource(Layer layer);
+ std::vector<Layer> getLayers() const;
+
+ void setMustValidateState(bool mustValidate);
+
+ bool mustValidate() const;
+
+ protected:
+ const DisplayType mType;
+ ComposerHandleCache mClientTargetCache;
+ ComposerHandleCache mOutputBufferCache;
+ bool mMustValidate;
+
+ std::unordered_map<Layer, std::unique_ptr<ComposerLayerResource>> mLayerResources;
+};
+
+class ComposerResources {
+ public:
+ static std::unique_ptr<ComposerResources> create();
+
+ ComposerResources() = default;
+ virtual ~ComposerResources() = default;
+
+ bool init();
+
+ using RemoveDisplay =
+ std::function<void(Display display, bool isVirtual, const std::vector<Layer>& layers)>;
+ void clear(RemoveDisplay removeDisplay);
+
+ Error addPhysicalDisplay(Display display);
+ Error addVirtualDisplay(Display display, uint32_t outputBufferCacheSize);
+
+ Error removeDisplay(Display display);
+
+ Error setDisplayClientTargetCacheSize(Display display, uint32_t clientTargetCacheSize);
+
+ Error addLayer(Display display, Layer layer, uint32_t bufferCacheSize);
+ Error removeLayer(Display display, Layer layer);
+
+ void setDisplayMustValidateState(Display display, bool mustValidate);
+
+ bool mustValidateDisplay(Display display);
+
+ // When a buffer in the cache is replaced by a new one, we must keep it
+ // alive until it has been replaced in ComposerHal.
+ class ReplacedHandle {
+ public:
+ explicit ReplacedHandle(bool isBuffer) : mIsBuffer(isBuffer) {}
+ ReplacedHandle(const ReplacedHandle&) = delete;
+ ReplacedHandle& operator=(const ReplacedHandle&) = delete;
+
+ ~ReplacedHandle() { reset(); }
+
+ bool isBuffer() { return mIsBuffer; }
+
+ void reset(ComposerHandleImporter* importer = nullptr,
+ const native_handle_t* handle = nullptr) {
+ if (mHandle) {
+ if (mIsBuffer) {
+ mImporter->freeBuffer(mHandle);
+ } else {
+ mImporter->freeStream(mHandle);
+ }
+ }
+
+ mImporter = importer;
+ mHandle = handle;
+ }
+
+ private:
+ bool mIsBuffer;
+ ComposerHandleImporter* mImporter = nullptr;
+ const native_handle_t* mHandle = nullptr;
+ };
+
+ Error getDisplayClientTarget(Display display, uint32_t slot, bool fromCache,
+ const native_handle_t* rawHandle,
+ const native_handle_t** outBufferHandle,
+ ReplacedHandle* outReplacedBuffer);
+
+ Error getDisplayOutputBuffer(Display display, uint32_t slot, bool fromCache,
+ const native_handle_t* rawHandle,
+ const native_handle_t** outBufferHandle,
+ ReplacedHandle* outReplacedBuffer);
+
+ Error getLayerBuffer(Display display, Layer layer, uint32_t slot, bool fromCache,
+ const native_handle_t* rawHandle, const native_handle_t** outBufferHandle,
+ ReplacedHandle* outReplacedBuffer);
+
+ Error getLayerSidebandStream(Display display, Layer layer, const native_handle_t* rawHandle,
+ const native_handle_t** outStreamHandle,
+ ReplacedHandle* outReplacedStream);
+
+ protected:
+ virtual std::unique_ptr<ComposerDisplayResource> createDisplayResource(
+ ComposerDisplayResource::DisplayType type, uint32_t outputBufferCacheSize);
+
+ virtual std::unique_ptr<ComposerLayerResource> createLayerResource(uint32_t bufferCacheSize);
+
+ ComposerDisplayResource* findDisplayResourceLocked(Display display);
+
+ ComposerHandleImporter mImporter;
+
+ std::mutex mDisplayResourcesMutex;
+ std::unordered_map<Display, std::unique_ptr<ComposerDisplayResource>> mDisplayResources;
+
+ private:
+ enum class Cache {
+ CLIENT_TARGET,
+ OUTPUT_BUFFER,
+ LAYER_BUFFER,
+ LAYER_SIDEBAND_STREAM,
+ };
+
+ Error getHandle(Display display, Layer layer, uint32_t slot, Cache cache, bool fromCache,
+ const native_handle_t* rawHandle, const native_handle_t** outHandle,
+ ReplacedHandle* outReplacedHandle);
+};
+
+} // namespace hal
+} // namespace V2_1
+} // namespace composer
+} // namespace graphics
+} // namespace hardware
+} // namespace android