libui: Add Gralloc1On0Adapter and C++ shim
Adds an adapter which provides the gralloc1 interface on top of a
gralloc 0.x device as well as a C++ shim which wraps a gralloc1 device
and provides a somewhat nicer interface to the rest of the system.
This has also been squashed with a later commit that added mutexes to
protect both the buffer list and the descriptor list from concurrent
access.
Bug: 28401203
Bug: 29420918
Change-Id: I0eeafc998b56e2e2fc39de6fad41e3ed2e19658a
diff --git a/include/ui/Gralloc1.h b/include/ui/Gralloc1.h
new file mode 100644
index 0000000..cf8c173
--- /dev/null
+++ b/include/ui/Gralloc1.h
@@ -0,0 +1,238 @@
+/*
+ * Copyright 2016 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_UI_GRALLOC1_H
+#define ANDROID_UI_GRALLOC1_H
+
+#define GRALLOC1_LOG_TAG "Gralloc1"
+
+#include <ui/Gralloc1On0Adapter.h>
+
+#include <unordered_set>
+
+namespace std {
+ template <>
+ struct hash<gralloc1_capability_t> {
+ size_t operator()(gralloc1_capability_t capability) const {
+ return std::hash<int32_t>()(static_cast<int32_t>(capability));
+ }
+ };
+}
+
+namespace android {
+
+class Fence;
+class GraphicBuffer;
+
+namespace Gralloc1 {
+
+class Device;
+
+class Descriptor {
+public:
+ Descriptor(Device& device, gralloc1_buffer_descriptor_t deviceId)
+ : mShimDevice(device),
+ mDeviceId(deviceId),
+ mWidth(0),
+ mHeight(0),
+ mFormat(static_cast<android_pixel_format_t>(0)),
+ mProducerUsage(GRALLOC1_PRODUCER_USAGE_NONE),
+ mConsumerUsage(GRALLOC1_CONSUMER_USAGE_NONE) {}
+
+ ~Descriptor();
+
+ gralloc1_buffer_descriptor_t getDeviceId() const { return mDeviceId; }
+
+ gralloc1_error_t setDimensions(uint32_t width, uint32_t height);
+ gralloc1_error_t setFormat(android_pixel_format_t format);
+ gralloc1_error_t setProducerUsage(gralloc1_producer_usage_t usage);
+ gralloc1_error_t setConsumerUsage(gralloc1_consumer_usage_t usage);
+
+private:
+ Device& mShimDevice;
+ const gralloc1_buffer_descriptor_t mDeviceId;
+
+ uint32_t mWidth;
+ uint32_t mHeight;
+ android_pixel_format_t mFormat;
+ gralloc1_producer_usage_t mProducerUsage;
+ gralloc1_consumer_usage_t mConsumerUsage;
+
+}; // Descriptor
+
+class Device {
+ friend class Gralloc1::Descriptor;
+
+public:
+ Device(gralloc1_device_t* device);
+
+ bool hasCapability(gralloc1_capability_t capability) const;
+
+ std::string dump();
+
+ std::shared_ptr<Descriptor> createDescriptor();
+
+ gralloc1_error_t getStride(buffer_handle_t buffer, uint32_t* outStride);
+
+ gralloc1_error_t allocate(
+ const std::vector<std::shared_ptr<const Descriptor>>& descriptors,
+ std::vector<buffer_handle_t>* outBuffers);
+ gralloc1_error_t allocate(
+ const std::shared_ptr<const Descriptor>& descriptor,
+ gralloc1_backing_store_t id, buffer_handle_t* outBuffer);
+
+ gralloc1_error_t retain(buffer_handle_t buffer);
+ gralloc1_error_t retain(const GraphicBuffer* buffer);
+
+ gralloc1_error_t release(buffer_handle_t buffer);
+
+ gralloc1_error_t getNumFlexPlanes(buffer_handle_t buffer,
+ uint32_t* outNumPlanes);
+
+ gralloc1_error_t lock(buffer_handle_t buffer,
+ gralloc1_producer_usage_t producerUsage,
+ gralloc1_consumer_usage_t consumerUsage,
+ const gralloc1_rect_t* accessRegion, void** outData,
+ const sp<Fence>& acquireFence);
+ gralloc1_error_t lockFlex(buffer_handle_t buffer,
+ gralloc1_producer_usage_t producerUsage,
+ gralloc1_consumer_usage_t consumerUsage,
+ const gralloc1_rect_t* accessRegion,
+ struct android_flex_layout* outData, const sp<Fence>& acquireFence);
+ gralloc1_error_t lockYCbCr(buffer_handle_t buffer,
+ gralloc1_producer_usage_t producerUsage,
+ gralloc1_consumer_usage_t consumerUsage,
+ const gralloc1_rect_t* accessRegion, struct android_ycbcr* outData,
+ const sp<Fence>& acquireFence);
+
+ gralloc1_error_t unlock(buffer_handle_t buffer, sp<Fence>* outFence);
+
+private:
+ std::unordered_set<gralloc1_capability_t> loadCapabilities();
+
+ bool loadFunctions();
+
+ template <typename LockType, typename OutType>
+ gralloc1_error_t lockHelper(LockType pfn, buffer_handle_t buffer,
+ gralloc1_producer_usage_t producerUsage,
+ gralloc1_consumer_usage_t consumerUsage,
+ const gralloc1_rect_t* accessRegion, OutType* outData,
+ const sp<Fence>& acquireFence) {
+ int32_t intError = pfn(mDevice, buffer,
+ static_cast<uint64_t>(producerUsage),
+ static_cast<uint64_t>(consumerUsage), accessRegion, outData,
+ acquireFence->dup());
+ return static_cast<gralloc1_error_t>(intError);
+ }
+
+ gralloc1_device_t* const mDevice;
+
+ const std::unordered_set<gralloc1_capability_t> mCapabilities;
+
+ template <typename PFN, gralloc1_function_descriptor_t descriptor>
+ struct FunctionLoader {
+ FunctionLoader() : pfn(nullptr) {}
+
+ bool load(gralloc1_device_t* device, bool errorIfNull) {
+ gralloc1_function_pointer_t rawPointer =
+ device->getFunction(device, descriptor);
+ pfn = reinterpret_cast<PFN>(rawPointer);
+ if (errorIfNull && !rawPointer) {
+ ALOG(LOG_ERROR, GRALLOC1_LOG_TAG,
+ "Failed to load function pointer %d", descriptor);
+ }
+ return rawPointer != nullptr;
+ }
+
+ template <typename ...Args>
+ typename std::result_of<PFN(Args...)>::type operator()(Args... args) {
+ return pfn(args...);
+ }
+
+ PFN pfn;
+ };
+
+ // Function pointers
+ struct Functions {
+ FunctionLoader<GRALLOC1_PFN_DUMP, GRALLOC1_FUNCTION_DUMP> dump;
+ FunctionLoader<GRALLOC1_PFN_CREATE_DESCRIPTOR,
+ GRALLOC1_FUNCTION_CREATE_DESCRIPTOR> createDescriptor;
+ FunctionLoader<GRALLOC1_PFN_DESTROY_DESCRIPTOR,
+ GRALLOC1_FUNCTION_DESTROY_DESCRIPTOR> destroyDescriptor;
+ FunctionLoader<GRALLOC1_PFN_SET_CONSUMER_USAGE,
+ GRALLOC1_FUNCTION_SET_CONSUMER_USAGE> setConsumerUsage;
+ FunctionLoader<GRALLOC1_PFN_SET_DIMENSIONS,
+ GRALLOC1_FUNCTION_SET_DIMENSIONS> setDimensions;
+ FunctionLoader<GRALLOC1_PFN_SET_FORMAT,
+ GRALLOC1_FUNCTION_SET_FORMAT> setFormat;
+ FunctionLoader<GRALLOC1_PFN_SET_PRODUCER_USAGE,
+ GRALLOC1_FUNCTION_SET_PRODUCER_USAGE> setProducerUsage;
+ FunctionLoader<GRALLOC1_PFN_GET_BACKING_STORE,
+ GRALLOC1_FUNCTION_GET_BACKING_STORE> getBackingStore;
+ FunctionLoader<GRALLOC1_PFN_GET_CONSUMER_USAGE,
+ GRALLOC1_FUNCTION_GET_CONSUMER_USAGE> getConsumerUsage;
+ FunctionLoader<GRALLOC1_PFN_GET_DIMENSIONS,
+ GRALLOC1_FUNCTION_GET_DIMENSIONS> getDimensions;
+ FunctionLoader<GRALLOC1_PFN_GET_FORMAT,
+ GRALLOC1_FUNCTION_GET_FORMAT> getFormat;
+ FunctionLoader<GRALLOC1_PFN_GET_PRODUCER_USAGE,
+ GRALLOC1_FUNCTION_GET_PRODUCER_USAGE> getProducerUsage;
+ FunctionLoader<GRALLOC1_PFN_GET_STRIDE,
+ GRALLOC1_FUNCTION_GET_STRIDE> getStride;
+ FunctionLoader<GRALLOC1_PFN_ALLOCATE,
+ GRALLOC1_FUNCTION_ALLOCATE> allocate;
+ FunctionLoader<GRALLOC1_PFN_RETAIN,
+ GRALLOC1_FUNCTION_RETAIN> retain;
+ FunctionLoader<GRALLOC1_PFN_RELEASE,
+ GRALLOC1_FUNCTION_RELEASE> release;
+ FunctionLoader<GRALLOC1_PFN_GET_NUM_FLEX_PLANES,
+ GRALLOC1_FUNCTION_GET_NUM_FLEX_PLANES> getNumFlexPlanes;
+ FunctionLoader<GRALLOC1_PFN_LOCK,
+ GRALLOC1_FUNCTION_LOCK> lock;
+ FunctionLoader<GRALLOC1_PFN_LOCK_FLEX,
+ GRALLOC1_FUNCTION_LOCK_FLEX> lockFlex;
+ FunctionLoader<GRALLOC1_PFN_LOCK_YCBCR,
+ GRALLOC1_FUNCTION_LOCK_YCBCR> lockYCbCr;
+ FunctionLoader<GRALLOC1_PFN_UNLOCK,
+ GRALLOC1_FUNCTION_UNLOCK> unlock;
+
+ // Adapter-only functions
+ FunctionLoader<GRALLOC1_PFN_RETAIN_GRAPHIC_BUFFER,
+ GRALLOC1_FUNCTION_RETAIN_GRAPHIC_BUFFER> retainGraphicBuffer;
+ FunctionLoader<GRALLOC1_PFN_ALLOCATE_WITH_ID,
+ GRALLOC1_FUNCTION_ALLOCATE_WITH_ID> allocateWithId;
+ } mFunctions;
+
+}; // class android::Gralloc1::Device
+
+class Loader
+{
+public:
+ Loader();
+ ~Loader();
+
+ std::unique_ptr<Device> getDevice();
+
+private:
+ static std::unique_ptr<Gralloc1On0Adapter> mAdapter;
+ std::unique_ptr<Device> mDevice;
+};
+
+} // namespace android::Gralloc1
+
+} // namespace android
+
+#endif
diff --git a/include/ui/Gralloc1On0Adapter.h b/include/ui/Gralloc1On0Adapter.h
new file mode 100644
index 0000000..97c9a89
--- /dev/null
+++ b/include/ui/Gralloc1On0Adapter.h
@@ -0,0 +1,481 @@
+/*
+ * Copyright 2016 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_UI_GRALLOC_1_ON_0_ADAPTER_H
+#define ANDROID_UI_GRALLOC_1_ON_0_ADAPTER_H
+
+#include <ui/Fence.h>
+#include <ui/GraphicBuffer.h>
+
+#include <hardware/gralloc1.h>
+
+#include <mutex>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+struct gralloc_module_t;
+
+// This is not an "official" capability (i.e., it is not found in gralloc1.h),
+// but we will use it to detect that we are running through the adapter, which
+// is capable of collaborating with GraphicBuffer such that queries on a
+// buffer_handle_t succeed
+static const auto GRALLOC1_CAPABILITY_ON_ADAPTER =
+ static_cast<gralloc1_capability_t>(GRALLOC1_LAST_CAPABILITY + 1);
+
+static const auto GRALLOC1_FUNCTION_RETAIN_GRAPHIC_BUFFER =
+ static_cast<gralloc1_function_descriptor_t>(GRALLOC1_LAST_FUNCTION + 1);
+static const auto GRALLOC1_FUNCTION_ALLOCATE_WITH_ID =
+ static_cast<gralloc1_function_descriptor_t>(GRALLOC1_LAST_FUNCTION + 2);
+static const auto GRALLOC1_FUNCTION_LOCK_YCBCR =
+ static_cast<gralloc1_function_descriptor_t>(GRALLOC1_LAST_FUNCTION + 3);
+static const auto GRALLOC1_LAST_ADAPTER_FUNCTION = GRALLOC1_FUNCTION_LOCK_YCBCR;
+
+typedef gralloc1_error_t (*GRALLOC1_PFN_RETAIN_GRAPHIC_BUFFER)(
+ gralloc1_device_t* device, const android::GraphicBuffer* buffer);
+typedef gralloc1_error_t (*GRALLOC1_PFN_ALLOCATE_WITH_ID)(
+ gralloc1_device_t* device, gralloc1_buffer_descriptor_t descriptor,
+ gralloc1_backing_store_t id, buffer_handle_t* outBuffer);
+typedef int32_t /*gralloc1_error_t*/ (*GRALLOC1_PFN_LOCK_YCBCR)(
+ gralloc1_device_t* device, buffer_handle_t buffer,
+ uint64_t /*gralloc1_producer_usage_t*/ producerUsage,
+ uint64_t /*gralloc1_consumer_usage_t*/ consumerUsage,
+ const gralloc1_rect_t* accessRegion, struct android_ycbcr* outYCbCr,
+ int32_t acquireFence);
+
+namespace android {
+
+class Gralloc1On0Adapter : public gralloc1_device_t
+{
+public:
+ Gralloc1On0Adapter(const hw_module_t* module);
+ ~Gralloc1On0Adapter();
+
+ gralloc1_device_t* getDevice() {
+ return static_cast<gralloc1_device_t*>(this);
+ }
+
+private:
+ static inline Gralloc1On0Adapter* getAdapter(gralloc1_device_t* device) {
+ return static_cast<Gralloc1On0Adapter*>(device);
+ }
+
+ // getCapabilities
+
+ void doGetCapabilities(uint32_t* outCount,
+ int32_t* /*gralloc1_capability_t*/ outCapabilities);
+ static void getCapabilitiesHook(gralloc1_device_t* device,
+ uint32_t* outCount,
+ int32_t* /*gralloc1_capability_t*/ outCapabilities) {
+ getAdapter(device)->doGetCapabilities(outCount, outCapabilities);
+ };
+
+ // getFunction
+
+ gralloc1_function_pointer_t doGetFunction(
+ int32_t /*gralloc1_function_descriptor_t*/ descriptor);
+ static gralloc1_function_pointer_t getFunctionHook(
+ gralloc1_device_t* device,
+ int32_t /*gralloc1_function_descriptor_t*/ descriptor) {
+ return getAdapter(device)->doGetFunction(descriptor);
+ }
+
+ // dump
+
+ void dump(uint32_t* outSize, char* outBuffer);
+ static void dumpHook(gralloc1_device_t* device, uint32_t* outSize,
+ char* outBuffer) {
+ return getAdapter(device)->dump(outSize, outBuffer);
+ }
+ std::string mCachedDump;
+
+ // Buffer descriptor lifecycle functions
+
+ class Descriptor;
+
+ gralloc1_error_t createDescriptor(
+ gralloc1_buffer_descriptor_t* outDescriptor);
+ static int32_t createDescriptorHook(gralloc1_device_t* device,
+ gralloc1_buffer_descriptor_t* outDescriptor) {
+ auto error = getAdapter(device)->createDescriptor(outDescriptor);
+ return static_cast<int32_t>(error);
+ }
+
+ gralloc1_error_t destroyDescriptor(gralloc1_buffer_descriptor_t descriptor);
+ static int32_t destroyDescriptorHook(gralloc1_device_t* device,
+ gralloc1_buffer_descriptor_t descriptor) {
+ auto error = getAdapter(device)->destroyDescriptor(descriptor);
+ return static_cast<int32_t>(error);
+ }
+
+ // Buffer descriptor modification functions
+
+ struct Descriptor : public std::enable_shared_from_this<Descriptor> {
+ Descriptor(Gralloc1On0Adapter* adapter,
+ gralloc1_buffer_descriptor_t id)
+ : adapter(adapter),
+ id(id),
+ width(0),
+ height(0),
+ format(HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED),
+ producerUsage(GRALLOC1_PRODUCER_USAGE_NONE),
+ consumerUsage(GRALLOC1_CONSUMER_USAGE_NONE) {}
+
+ gralloc1_error_t setDimensions(uint32_t w, uint32_t h) {
+ width = w;
+ height = h;
+ return GRALLOC1_ERROR_NONE;
+ }
+
+ gralloc1_error_t setFormat(int32_t f) {
+ format = f;
+ return GRALLOC1_ERROR_NONE;
+ }
+
+ gralloc1_error_t setProducerUsage(gralloc1_producer_usage_t usage) {
+ producerUsage = usage;
+ return GRALLOC1_ERROR_NONE;
+ }
+
+ gralloc1_error_t setConsumerUsage(gralloc1_consumer_usage_t usage) {
+ consumerUsage = usage;
+ return GRALLOC1_ERROR_NONE;
+ }
+
+ Gralloc1On0Adapter* const adapter;
+ const gralloc1_buffer_descriptor_t id;
+
+ uint32_t width;
+ uint32_t height;
+ int32_t format;
+ gralloc1_producer_usage_t producerUsage;
+ gralloc1_consumer_usage_t consumerUsage;
+ };
+
+ template <typename ...Args>
+ static int32_t callDescriptorFunction(gralloc1_device_t* device,
+ gralloc1_buffer_descriptor_t descriptorId,
+ gralloc1_error_t (Descriptor::*member)(Args...), Args... args) {
+ auto descriptor = getAdapter(device)->getDescriptor(descriptorId);
+ if (!descriptor) {
+ return static_cast<int32_t>(GRALLOC1_ERROR_BAD_DESCRIPTOR);
+ }
+ auto error = ((*descriptor).*member)(std::forward<Args>(args)...);
+ return static_cast<int32_t>(error);
+ }
+
+ static int32_t setConsumerUsageHook(gralloc1_device_t* device,
+ gralloc1_buffer_descriptor_t descriptorId, uint64_t intUsage) {
+ auto usage = static_cast<gralloc1_consumer_usage_t>(intUsage);
+ return callDescriptorFunction(device, descriptorId,
+ &Descriptor::setConsumerUsage, usage);
+ }
+
+ static int32_t setDimensionsHook(gralloc1_device_t* device,
+ gralloc1_buffer_descriptor_t descriptorId, uint32_t width,
+ uint32_t height) {
+ return callDescriptorFunction(device, descriptorId,
+ &Descriptor::setDimensions, width, height);
+ }
+
+ static int32_t setFormatHook(gralloc1_device_t* device,
+ gralloc1_buffer_descriptor_t descriptorId, int32_t format) {
+ return callDescriptorFunction(device, descriptorId,
+ &Descriptor::setFormat, format);
+ }
+
+ static int32_t setProducerUsageHook(gralloc1_device_t* device,
+ gralloc1_buffer_descriptor_t descriptorId, uint64_t intUsage) {
+ auto usage = static_cast<gralloc1_producer_usage_t>(intUsage);
+ return callDescriptorFunction(device, descriptorId,
+ &Descriptor::setProducerUsage, usage);
+ }
+
+ // Buffer handle query functions
+
+ class Buffer {
+ public:
+ Buffer(buffer_handle_t handle, gralloc1_backing_store_t store,
+ const Descriptor& descriptor, uint32_t stride,
+ bool wasAllocated);
+
+ buffer_handle_t getHandle() const { return mHandle; }
+
+ void retain() { ++mReferenceCount; }
+
+ // Returns true if the reference count has dropped to 0, indicating that
+ // the buffer needs to be released
+ bool release() { return --mReferenceCount == 0; }
+
+ bool wasAllocated() const { return mWasAllocated; }
+
+ gralloc1_error_t getBackingStore(
+ gralloc1_backing_store_t* outStore) const {
+ *outStore = mStore;
+ return GRALLOC1_ERROR_NONE;
+ }
+
+ gralloc1_error_t getConsumerUsage(
+ gralloc1_consumer_usage_t* outUsage) const {
+ *outUsage = mDescriptor.consumerUsage;
+ return GRALLOC1_ERROR_NONE;
+ }
+
+ gralloc1_error_t getDimensions(uint32_t* outWidth,
+ uint32_t* outHeight) const {
+ *outWidth = mDescriptor.width;
+ *outHeight = mDescriptor.height;
+ return GRALLOC1_ERROR_NONE;
+ }
+
+ gralloc1_error_t getFormat(int32_t* outFormat) const {
+ *outFormat = mDescriptor.format;
+ return GRALLOC1_ERROR_NONE;
+ }
+
+ gralloc1_error_t getNumFlexPlanes(uint32_t* outNumPlanes) const {
+ // TODO: This is conservative, and we could do better by examining
+ // the format, but it won't hurt anything for now
+ *outNumPlanes = 4;
+ return GRALLOC1_ERROR_NONE;
+ }
+
+ gralloc1_error_t getProducerUsage(
+ gralloc1_producer_usage_t* outUsage) const {
+ *outUsage = mDescriptor.producerUsage;
+ return GRALLOC1_ERROR_NONE;
+ }
+
+ gralloc1_error_t getStride(uint32_t* outStride) const {
+ *outStride = mStride;
+ return GRALLOC1_ERROR_NONE;
+ }
+
+ private:
+
+ const buffer_handle_t mHandle;
+ size_t mReferenceCount;
+
+ // Since we're adapting to gralloc0, there will always be a 1:1
+ // correspondence between buffer handles and backing stores, and the
+ // backing store ID will be the same as the GraphicBuffer unique ID
+ const gralloc1_backing_store_t mStore;
+
+ const Descriptor mDescriptor;
+ const uint32_t mStride;
+
+ // Whether this buffer allocated in this process (as opposed to just
+ // being retained here), which determines whether to free or unregister
+ // the buffer when this Buffer is released
+ const bool mWasAllocated;
+ };
+
+ template <typename ...Args>
+ static int32_t callBufferFunction(gralloc1_device_t* device,
+ buffer_handle_t bufferHandle,
+ gralloc1_error_t (Buffer::*member)(Args...) const, Args... args) {
+ auto buffer = getAdapter(device)->getBuffer(bufferHandle);
+ if (!buffer) {
+ return static_cast<int32_t>(GRALLOC1_ERROR_BAD_HANDLE);
+ }
+ auto error = ((*buffer).*member)(std::forward<Args>(args)...);
+ return static_cast<int32_t>(error);
+ }
+
+ template <typename MF, MF memFunc, typename ...Args>
+ static int32_t bufferHook(gralloc1_device_t* device,
+ buffer_handle_t bufferHandle, Args... args) {
+ return Gralloc1On0Adapter::callBufferFunction(device, bufferHandle,
+ memFunc, std::forward<Args>(args)...);
+ }
+
+ static int32_t getConsumerUsageHook(gralloc1_device_t* device,
+ buffer_handle_t bufferHandle, uint64_t* outUsage) {
+ auto usage = GRALLOC1_CONSUMER_USAGE_NONE;
+ auto error = callBufferFunction(device, bufferHandle,
+ &Buffer::getConsumerUsage, &usage);
+ if (error != GRALLOC1_ERROR_NONE) {
+ *outUsage = static_cast<uint64_t>(usage);
+ }
+ return error;
+ }
+
+ static int32_t getProducerUsageHook(gralloc1_device_t* device,
+ buffer_handle_t bufferHandle, uint64_t* outUsage) {
+ auto usage = GRALLOC1_PRODUCER_USAGE_NONE;
+ auto error = callBufferFunction(device, bufferHandle,
+ &Buffer::getProducerUsage, &usage);
+ if (error != GRALLOC1_ERROR_NONE) {
+ *outUsage = static_cast<uint64_t>(usage);
+ }
+ return error;
+ }
+
+ // Buffer management functions
+
+ // We don't provide GRALLOC1_FUNCTION_ALLOCATE, since this should always be
+ // called through GRALLOC1_FUNCTION_ALLOCATE_WITH_ID
+ gralloc1_error_t allocate(
+ const std::shared_ptr<Descriptor>& descriptor,
+ gralloc1_backing_store_t id,
+ buffer_handle_t* outBufferHandle);
+ static gralloc1_error_t allocateWithIdHook(gralloc1_device_t* device,
+ gralloc1_buffer_descriptor_t descriptors,
+ gralloc1_backing_store_t id, buffer_handle_t* outBuffer);
+
+ gralloc1_error_t retain(const std::shared_ptr<Buffer>& buffer);
+ gralloc1_error_t release(const std::shared_ptr<Buffer>& buffer);
+
+ // Member function pointer 'member' will either be retain or release
+ template <gralloc1_error_t (Gralloc1On0Adapter::*member)(
+ const std::shared_ptr<Buffer>& buffer)>
+ static int32_t managementHook(gralloc1_device_t* device,
+ buffer_handle_t bufferHandle) {
+ auto adapter = getAdapter(device);
+
+ auto buffer = adapter->getBuffer(bufferHandle);
+ if (!buffer) {
+ return static_cast<int32_t>(GRALLOC1_ERROR_BAD_HANDLE);
+ }
+
+ auto error = ((*adapter).*member)(buffer);
+ return static_cast<int32_t>(error);
+ }
+
+ gralloc1_error_t retain(const GraphicBuffer* buffer);
+ static gralloc1_error_t retainGraphicBufferHook(gralloc1_device_t* device,
+ const GraphicBuffer* buffer) {
+ auto adapter = getAdapter(device);
+ return adapter->retain(buffer);
+ }
+
+ // Buffer access functions
+
+ gralloc1_error_t lock(const std::shared_ptr<Buffer>& buffer,
+ gralloc1_producer_usage_t producerUsage,
+ gralloc1_consumer_usage_t consumerUsage,
+ const gralloc1_rect_t& accessRegion, void** outData,
+ const sp<Fence>& acquireFence);
+ gralloc1_error_t lockFlex(const std::shared_ptr<Buffer>& buffer,
+ gralloc1_producer_usage_t producerUsage,
+ gralloc1_consumer_usage_t consumerUsage,
+ const gralloc1_rect_t& accessRegion,
+ struct android_flex_layout* outFlex,
+ const sp<Fence>& acquireFence);
+ gralloc1_error_t lockYCbCr(const std::shared_ptr<Buffer>& buffer,
+ gralloc1_producer_usage_t producerUsage,
+ gralloc1_consumer_usage_t consumerUsage,
+ const gralloc1_rect_t& accessRegion,
+ struct android_ycbcr* outFlex,
+ const sp<Fence>& acquireFence);
+
+ template <typename OUT, gralloc1_error_t (Gralloc1On0Adapter::*member)(
+ const std::shared_ptr<Buffer>&, gralloc1_producer_usage_t,
+ gralloc1_consumer_usage_t, const gralloc1_rect_t&, OUT*,
+ const sp<Fence>&)>
+ static int32_t lockHook(gralloc1_device_t* device,
+ buffer_handle_t bufferHandle,
+ uint64_t /*gralloc1_producer_usage_t*/ uintProducerUsage,
+ uint64_t /*gralloc1_consumer_usage_t*/ uintConsumerUsage,
+ const gralloc1_rect_t* accessRegion, OUT* outData,
+ int32_t acquireFenceFd) {
+ auto adapter = getAdapter(device);
+
+ // Exactly one of producer and consumer usage must be *_USAGE_NONE,
+ // but we can't check this until the upper levels of the framework
+ // correctly distinguish between producer and consumer usage
+ /*
+ bool hasProducerUsage =
+ uintProducerUsage != GRALLOC1_PRODUCER_USAGE_NONE;
+ bool hasConsumerUsage =
+ uintConsumerUsage != GRALLOC1_CONSUMER_USAGE_NONE;
+ if (hasProducerUsage && hasConsumerUsage ||
+ !hasProducerUsage && !hasConsumerUsage) {
+ return static_cast<int32_t>(GRALLOC1_ERROR_BAD_VALUE);
+ }
+ */
+
+ auto producerUsage =
+ static_cast<gralloc1_producer_usage_t>(uintProducerUsage);
+ auto consumerUsage =
+ static_cast<gralloc1_consumer_usage_t>(uintConsumerUsage);
+
+ if (!outData) {
+ const auto producerCpuUsage = GRALLOC1_PRODUCER_USAGE_CPU_READ |
+ GRALLOC1_PRODUCER_USAGE_CPU_WRITE;
+ if (producerUsage & producerCpuUsage != 0) {
+ return static_cast<int32_t>(GRALLOC1_ERROR_BAD_VALUE);
+ }
+ if (consumerUsage & GRALLOC1_CONSUMER_USAGE_CPU_READ != 0) {
+ return static_cast<int32_t>(GRALLOC1_ERROR_BAD_VALUE);
+ }
+ }
+
+ auto buffer = adapter->getBuffer(bufferHandle);
+ if (!buffer) {
+ return static_cast<int32_t>(GRALLOC1_ERROR_BAD_HANDLE);
+ }
+
+ if (!accessRegion) {
+ ALOGE("accessRegion is null");
+ return static_cast<int32_t>(GRALLOC1_ERROR_BAD_VALUE);
+ }
+
+ sp<Fence> acquireFence{new Fence(acquireFenceFd)};
+ auto error = ((*adapter).*member)(buffer, producerUsage, consumerUsage,
+ *accessRegion, outData, acquireFence);
+ return static_cast<int32_t>(error);
+ }
+
+ gralloc1_error_t unlock(const std::shared_ptr<Buffer>& buffer,
+ sp<Fence>* outReleaseFence);
+ static int32_t unlockHook(gralloc1_device_t* device,
+ buffer_handle_t bufferHandle, int32_t* outReleaseFenceFd) {
+ auto adapter = getAdapter(device);
+
+ auto buffer = adapter->getBuffer(bufferHandle);
+ if (!buffer) {
+ return static_cast<int32_t>(GRALLOC1_ERROR_BAD_HANDLE);
+ }
+
+ sp<Fence> releaseFence = Fence::NO_FENCE;
+ auto error = adapter->unlock(buffer, &releaseFence);
+ if (error == GRALLOC1_ERROR_NONE) {
+ *outReleaseFenceFd = releaseFence->dup();
+ }
+ return static_cast<int32_t>(error);
+ }
+
+ // Adapter internals
+ const gralloc_module_t* mModule;
+ uint8_t mMinorVersion;
+ alloc_device_t* mDevice;
+
+ std::shared_ptr<Descriptor> getDescriptor(
+ gralloc1_buffer_descriptor_t descriptorId);
+ std::shared_ptr<Buffer> getBuffer(buffer_handle_t bufferHandle);
+
+ static std::atomic<gralloc1_buffer_descriptor_t> sNextBufferDescriptorId;
+ std::mutex mDescriptorMutex;
+ std::unordered_map<gralloc1_buffer_descriptor_t,
+ std::shared_ptr<Descriptor>> mDescriptors;
+ std::mutex mBufferMutex;
+ std::unordered_map<buffer_handle_t, std::shared_ptr<Buffer>> mBuffers;
+};
+
+} // namespace android
+
+#endif