+++ /dev/null
-/*
- * Copyright (C) 2017 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_HALTOKEN_H
-#define ANDROID_HALTOKEN_H
-
-#include <binder/Parcel.h>
-#include <hidl/HidlSupport.h>
-
-/**
- * Hybrid Interfaces
- * =================
- *
- * A hybrid interface is a binder interface that
- * 1. is implemented both traditionally and as a wrapper around a hidl
- * interface, and allows querying whether the underlying instance comes from
- * a hidl interface or not; and
- * 2. allows efficient calls to a hidl interface (if the underlying instance
- * comes from a hidl interface) by automatically creating the wrapper in the
- * process that calls it.
- *
- * Terminology:
- * - `HalToken`: The type for a "token" of a hidl interface. This is defined to
- * be compatible with `ITokenManager.hal`.
- * - `HInterface`: The base type for a hidl interface. Currently, it is defined
- * as `::android::hidl::base::V1_0::IBase`.
- * - `HALINTERFACE`: The hidl interface that will be sent through binders.
- * - `INTERFACE`: The binder interface that will be the wrapper of
- * `HALINTERFACE`. `INTERFACE` is supposed to be somewhat similar to
- * `HALINTERFACE`.
- *
- * To demonstrate how this is done, here is an example. Suppose `INTERFACE` is
- * `IFoo` and `HALINTERFACE` is `HFoo`. The required steps are:
- * 1. Use DECLARE_HYBRID_META_INTERFACE instead of DECLARE_META_INTERFACE in the
- * definition of `IFoo`. The usage is
- * DECLARE_HYBRID_META_INTERFACE(IFoo, HFoo)
- * inside the body of `IFoo`.
- * 2. Create a converter class that derives from
- * `H2BConverter<HFoo, IFoo, BnFoo>`. Let us call this `H2BFoo`.
- * 3. Add the following constructor in `H2BFoo` that call the corresponding
- * constructors in `H2BConverter`:
- * H2BFoo(const sp<HalInterface>& base) : CBase(base) {}
- * Note: `CBase = H2BConverter<HFoo, IFoo, BnFoo>` and `HalInterface = HFoo`
- * are member typedefs of `H2BConverter<HFoo, IFoo, BnFoo>`, so the above
- * line can be copied into `H2BFoo`.
- * 4. Implement `IFoo` in `H2BFoo` on top of `HFoo`. `H2BConverter` provides a
- * protected `mBase` of type `sp<HFoo>` that can be used to access the `HFoo`
- * instance. (There is also a public function named `getHalInterface()` that
- * returns `mBase`.)
- * 5. Create a hardware proxy class that derives from
- * `HpInterface<BpFoo, H2BFoo>`. Name this class `HpFoo`. (This name cannot
- * deviate. See step 8 below.)
- * 6. Add the following constructor to `HpFoo`:
- * HpFoo(const sp<IBinder>& base): PBase(base) {}
- * Note: `PBase` a member typedef of `HpInterface<BpFoo, H2BFoo>` that is
- * equal to `HpInterface<BpFoo, H2BFoo>` itself, so the above line can be
- * copied verbatim into `HpFoo`.
- * 7. Delegate all functions in `HpFoo` that come from `IFoo` except
- * `getHalInterface` to the protected member `mBase`,
- * which is defined in `HpInterface<BpFoo, H2BFoo>` (hence in `HpFoo`) with
- * type `IFoo`. (There is also a public function named `getBaseInterface()`
- * that returns `mBase`.)
- * 8. Replace the existing `IMPLEMENT_META_INTERFACE` for INTERFACE by
- * `IMPLEMENT_HYBRID_META_INTERFACE`. Note that this macro relies on the
- * exact naming of `HpFoo`, where `Foo` comes from the interface name `IFoo`.
- * An example usage is
- * IMPLEMENT_HYBRID_META_INTERFACE(IFoo, HFoo, "example.interface.foo");
- *
- * `GETTOKEN` Template Argument
- * ============================
- *
- * Following the instructions above, `H2BConverter` and `HpInterface` would use
- * `transact()` to send over tokens, with `code` (the first argument of
- * `transact()`) equal to a 4-byte value of '_GTK'. If this value clashes with
- * other values already in use in the `Bp` class, it can be changed by supplying
- * the last optional template argument to `H2BConverter` and `HpInterface`.
- *
- */
-
-namespace android {
-
-typedef uint64_t HalToken;
-typedef ::android::hidl::base::V1_0::IBase HInterface;
-
-sp<HInterface> retrieveHalInterface(const HalToken& token);
-bool createHalToken(const sp<HInterface>& interface, HalToken* token);
-bool deleteHalToken(const HalToken& token);
-
-template <
- typename HINTERFACE,
- typename INTERFACE,
- typename BNINTERFACE,
- uint32_t GETTOKEN = '_GTK'>
-class H2BConverter : public BNINTERFACE {
-public:
- typedef H2BConverter<HINTERFACE, INTERFACE, BNINTERFACE, GETTOKEN> CBase; // Converter Base
- typedef INTERFACE BaseInterface;
- typedef HINTERFACE HalInterface;
- static constexpr uint32_t GET_HAL_TOKEN = GETTOKEN;
-
- H2BConverter(const sp<HalInterface>& base) : mBase(base) {}
- virtual status_t onTransact(uint32_t code,
- const Parcel& data, Parcel* reply, uint32_t flags = 0);
- sp<HalInterface> getHalInterface() override { return mBase; }
- HalInterface* getBaseInterface() { return mBase.get(); }
-
-protected:
- sp<HalInterface> mBase;
-};
-
-template <
- typename BPINTERFACE,
- typename CONVERTER,
- uint32_t GETTOKEN = '_GTK'>
-class HpInterface : public CONVERTER::BaseInterface {
-public:
- typedef HpInterface<BPINTERFACE, CONVERTER, GETTOKEN> PBase; // Proxy Base
- typedef typename CONVERTER::BaseInterface BaseInterface;
- typedef typename CONVERTER::HalInterface HalInterface;
- static constexpr uint32_t GET_HAL_TOKEN = GETTOKEN;
-
- explicit HpInterface(const sp<IBinder>& impl);
- sp<HalInterface> getHalInterface() override { return mHal; }
- BaseInterface* getBaseInterface() { return mBase.get(); }
-
-protected:
- sp<IBinder> mImpl;
- sp<BaseInterface> mBase;
- sp<HalInterface> mHal;
- IBinder* onAsBinder() override { return mImpl.get(); }
-};
-
-// ----------------------------------------------------------------------
-
-#define DECLARE_HYBRID_META_INTERFACE(INTERFACE, HAL) \
- static const ::android::String16 descriptor; \
- static ::android::sp<I##INTERFACE> asInterface( \
- const ::android::sp<::android::IBinder>& obj); \
- virtual const ::android::String16& getInterfaceDescriptor() const; \
- I##INTERFACE(); \
- virtual ~I##INTERFACE(); \
- virtual sp<HAL> getHalInterface(); \
-
-
-#define IMPLEMENT_HYBRID_META_INTERFACE(INTERFACE, HAL, NAME) \
- const ::android::String16 I##INTERFACE::descriptor(NAME); \
- const ::android::String16& \
- I##INTERFACE::getInterfaceDescriptor() const { \
- return I##INTERFACE::descriptor; \
- } \
- ::android::sp<I##INTERFACE> I##INTERFACE::asInterface( \
- const ::android::sp<::android::IBinder>& obj) \
- { \
- ::android::sp<I##INTERFACE> intr; \
- if (obj != NULL) { \
- intr = static_cast<I##INTERFACE*>( \
- obj->queryLocalInterface( \
- I##INTERFACE::descriptor).get()); \
- if (intr == NULL) { \
- intr = new Hp##INTERFACE(obj); \
- } \
- } \
- return intr; \
- } \
- I##INTERFACE::I##INTERFACE() { } \
- I##INTERFACE::~I##INTERFACE() { } \
- sp<HAL> I##INTERFACE::getHalInterface() { return nullptr; } \
-
-// ----------------------------------------------------------------------
-
-template <
- typename HINTERFACE,
- typename INTERFACE,
- typename BNINTERFACE,
- uint32_t GETTOKEN>
-status_t H2BConverter<HINTERFACE, INTERFACE, BNINTERFACE, GETTOKEN>::
- onTransact(
- uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) {
- if (code == GET_HAL_TOKEN) {
- HalToken token;
- bool result;
- result = createHalToken(mBase, &token);
- if (!result) {
- ALOGE("H2BConverter: Failed to create HAL token.");
- }
- reply->writeBool(result);
- reply->writeUint64(token);
- return NO_ERROR;
- }
- return BNINTERFACE::onTransact(code, data, reply, flags);
-}
-
-template <typename BPINTERFACE, typename CONVERTER, uint32_t GETTOKEN>
-HpInterface<BPINTERFACE, CONVERTER, GETTOKEN>::HpInterface(
- const sp<IBinder>& impl) : mImpl(impl) {
- Parcel data, reply;
- data.writeInterfaceToken(BaseInterface::getInterfaceDescriptor());
- if (impl->transact(GET_HAL_TOKEN, data, &reply) == NO_ERROR) {
- bool tokenCreated = reply.readBool();
- HalToken token = reply.readUint64();
- if (!tokenCreated) {
- ALOGE("HpInterface: Sender failed to create HAL token.");
- mBase = new BPINTERFACE(impl);
- } else {
- sp<HInterface> hInterface = retrieveHalInterface(token);
- deleteHalToken(token);
- if (hInterface != nullptr) {
- mHal = static_cast<HalInterface*>(hInterface.get());
- mBase = new CONVERTER(mHal);
- } else {
- ALOGE("HpInterface: Cannot retrieve HAL interface from token.");
- mBase = new BPINTERFACE(impl);
- }
- }
- } else {
- mBase = new BPINTERFACE(impl);
- }
-}
-
-// ----------------------------------------------------------------------
-
-}; // namespace android
-
-#endif // ANDROID_HALTOKEN_H
--- /dev/null
+/*
+ * Copyright 2017, 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 "H2BGraphicBufferProducer"
+
+#include <android-base/logging.h>
+
+#include <gui/bufferqueue/1.0/H2BGraphicBufferProducer.h>
+#include <gui/bufferqueue/1.0/B2HProducerListener.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace bufferqueue {
+namespace V1_0 {
+namespace utils {
+
+using Status = HGraphicBufferProducer::Status;
+using ::android::hardware::graphics::common::V1_0::Dataspace;
+typedef ::android::hardware::media::V1_0::Rect HRect;
+typedef ::android::hardware::media::V1_0::Region HRegion;
+
+// Conversion functions
+
+// native_handle_t helper functions.
+
+/**
+ * \brief Take an fd and create a native handle containing only the given fd.
+ * The created handle will need to be deleted manually with
+ * `native_handle_delete()`.
+ *
+ * \param[in] fd The source file descriptor (of type `int`).
+ * \return The create `native_handle_t*` that contains the given \p fd. If the
+ * supplied \p fd is negative, the created native handle will contain no file
+ * descriptors.
+ *
+ * If the native handle cannot be created, the return value will be
+ * `nullptr`.
+ *
+ * This function does not duplicate the file descriptor.
+ */
+inline native_handle_t* native_handle_create_from_fd(int fd) {
+ if (fd < 0) {
+ return native_handle_create(0, 0);
+ }
+ native_handle_t* nh = native_handle_create(1, 0);
+ if (nh == nullptr) {
+ return nullptr;
+ }
+ nh->data[0] = fd;
+ return nh;
+}
+
+/**
+ * \brief Extract a file descriptor from a native handle.
+ *
+ * \param[in] nh The source `native_handle_t*`.
+ * \param[in] index The index of the file descriptor in \p nh to read from. This
+ * input has the default value of `0`.
+ * \return The `index`-th file descriptor in \p nh. If \p nh does not have
+ * enough file descriptors, the returned value will be `-1`.
+ *
+ * This function does not duplicate the file descriptor.
+ */
+inline int native_handle_read_fd(native_handle_t const* nh, int index = 0) {
+ return ((nh == nullptr) || (nh->numFds == 0) ||
+ (nh->numFds <= index) || (index < 0)) ?
+ -1 : nh->data[index];
+}
+
+/**
+ * \brief Convert `Return<Status>` to `status_t`. This is for legacy binder
+ * calls.
+ *
+ * \param[in] t The source `Return<Status>`.
+ * \return The corresponding `status_t`.
+ *
+ * This function first check if \p t has a transport error. If it does, then the
+ * return value is the transport error code. Otherwise, the return value is
+ * converted from `Status` contained inside \p t.
+ *
+ * Note:
+ * - This `Status` is omx-specific. It is defined in `types.hal`.
+ * - The name of this function is not `convert`.
+ */
+// convert: Return<Status> -> status_t
+inline status_t toStatusT(Return<Status> const& t) {
+ return t.isOk() ? static_cast<status_t>(static_cast<Status>(t)) : UNKNOWN_ERROR;
+}
+
+/**
+ * \brief Convert `Return<void>` to `status_t`. This is for legacy binder calls.
+ *
+ * \param[in] t The source `Return<void>`.
+ * \return The corresponding `status_t`.
+ */
+// convert: Return<void> -> status_t
+inline status_t toStatusT(Return<void> const& t) {
+ return t.isOk() ? OK : UNKNOWN_ERROR;
+}
+
+/**
+ * \brief Wrap `GraphicBuffer` in `AnwBuffer`.
+ *
+ * \param[out] t The wrapper of type `AnwBuffer`.
+ * \param[in] l The source `GraphicBuffer`.
+ */
+// wrap: GraphicBuffer -> AnwBuffer
+inline void wrapAs(AnwBuffer* t, GraphicBuffer const& l) {
+ t->attr.width = l.getWidth();
+ t->attr.height = l.getHeight();
+ t->attr.stride = l.getStride();
+ t->attr.format = static_cast<PixelFormat>(l.getPixelFormat());
+ t->attr.layerCount = l.getLayerCount();
+ t->attr.usage = l.getUsage();
+ t->attr.id = l.getId();
+ t->attr.generationNumber = l.getGenerationNumber();
+ t->nativeHandle = hidl_handle(l.handle);
+}
+
+/**
+ * \brief Convert `AnwBuffer` to `GraphicBuffer`.
+ *
+ * \param[out] l The destination `GraphicBuffer`.
+ * \param[in] t The source `AnwBuffer`.
+ *
+ * This function will duplicate all file descriptors in \p t.
+ */
+// convert: AnwBuffer -> GraphicBuffer
+// Ref: frameworks/native/libs/ui/GraphicBuffer.cpp: GraphicBuffer::flatten
+inline bool convertTo(GraphicBuffer* l, AnwBuffer const& t) {
+ native_handle_t* handle = t.nativeHandle == nullptr ?
+ nullptr : native_handle_clone(t.nativeHandle);
+
+ size_t const numInts = 12 +
+ static_cast<size_t>(handle ? handle->numInts : 0);
+ int32_t* ints = new int32_t[numInts];
+
+ size_t numFds = static_cast<size_t>(handle ? handle->numFds : 0);
+ int* fds = new int[numFds];
+
+ ints[0] = 'GBFR';
+ ints[1] = static_cast<int32_t>(t.attr.width);
+ ints[2] = static_cast<int32_t>(t.attr.height);
+ ints[3] = static_cast<int32_t>(t.attr.stride);
+ ints[4] = static_cast<int32_t>(t.attr.format);
+ ints[5] = static_cast<int32_t>(t.attr.layerCount);
+ ints[6] = static_cast<int32_t>(t.attr.usage);
+ ints[7] = static_cast<int32_t>(t.attr.id >> 32);
+ ints[8] = static_cast<int32_t>(t.attr.id & 0xFFFFFFFF);
+ ints[9] = static_cast<int32_t>(t.attr.generationNumber);
+ ints[10] = 0;
+ ints[11] = 0;
+ if (handle) {
+ ints[10] = static_cast<int32_t>(handle->numFds);
+ ints[11] = static_cast<int32_t>(handle->numInts);
+ int* intsStart = handle->data + handle->numFds;
+ std::copy(handle->data, intsStart, fds);
+ std::copy(intsStart, intsStart + handle->numInts, &ints[12]);
+ }
+
+ void const* constBuffer = static_cast<void const*>(ints);
+ size_t size = numInts * sizeof(int32_t);
+ int const* constFds = static_cast<int const*>(fds);
+ status_t status = l->unflatten(constBuffer, size, constFds, numFds);
+
+ delete [] fds;
+ delete [] ints;
+ native_handle_delete(handle);
+ return status == NO_ERROR;
+}
+
+// Ref: frameworks/native/libs/ui/Fence.cpp
+
+/**
+ * \brief Return the size of the non-fd buffer required to flatten a fence.
+ *
+ * \param[in] fence The input fence of type `hidl_handle`.
+ * \return The required size of the flat buffer.
+ *
+ * The current version of this function always returns 4, which is the number of
+ * bytes required to store the number of file descriptors contained in the fd
+ * part of the flat buffer.
+ */
+inline size_t getFenceFlattenedSize(hidl_handle const& /* fence */) {
+ return 4;
+};
+
+/**
+ * \brief Return the number of file descriptors contained in a fence.
+ *
+ * \param[in] fence The input fence of type `hidl_handle`.
+ * \return `0` if \p fence does not contain a valid file descriptor, or `1`
+ * otherwise.
+ */
+inline size_t getFenceFdCount(hidl_handle const& fence) {
+ return native_handle_read_fd(fence) == -1 ? 0 : 1;
+}
+
+/**
+ * \brief Unflatten `Fence` to `hidl_handle`.
+ *
+ * \param[out] fence The destination `hidl_handle`.
+ * \param[out] nh The underlying native handle.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * If the return value is `NO_ERROR`, \p nh will point to a newly created
+ * native handle, which needs to be deleted with `native_handle_delete()`
+ * afterwards.
+ */
+inline status_t unflattenFence(hidl_handle* fence, native_handle_t** nh,
+ void const*& buffer, size_t& size, int const*& fds, size_t& numFds) {
+ if (size < 4) {
+ return NO_MEMORY;
+ }
+
+ uint32_t numFdsInHandle;
+ FlattenableUtils::read(buffer, size, numFdsInHandle);
+
+ if (numFdsInHandle > 1) {
+ return BAD_VALUE;
+ }
+
+ if (numFds < numFdsInHandle) {
+ return NO_MEMORY;
+ }
+
+ if (numFdsInHandle) {
+ *nh = native_handle_create_from_fd(*fds);
+ if (*nh == nullptr) {
+ return NO_MEMORY;
+ }
+ *fence = *nh;
+ ++fds;
+ --numFds;
+ } else {
+ *nh = nullptr;
+ *fence = hidl_handle();
+ }
+
+ return NO_ERROR;
+}
+
+/**
+ * \brief Flatten `hidl_handle` as `Fence`.
+ *
+ * \param[in] fence The source `hidl_handle`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ */
+inline status_t flattenFence(hidl_handle const& fence,
+ void*& buffer, size_t& size, int*& fds, size_t& numFds) {
+ if (size < getFenceFlattenedSize(fence) ||
+ numFds < getFenceFdCount(fence)) {
+ return NO_MEMORY;
+ }
+ // Cast to uint32_t since the size of a size_t can vary between 32- and
+ // 64-bit processes
+ FlattenableUtils::write(buffer, size,
+ static_cast<uint32_t>(getFenceFdCount(fence)));
+ int fd = native_handle_read_fd(fence);
+ if (fd != -1) {
+ *fds = fd;
+ ++fds;
+ --numFds;
+ }
+ return NO_ERROR;
+}
+
+/**
+ * \brief Wrap `Fence` in `hidl_handle`.
+ *
+ * \param[out] t The wrapper of type `hidl_handle`.
+ * \param[out] nh The native handle pointed to by \p t.
+ * \param[in] l The source `Fence`.
+ *
+ * On success, \p nh will hold a newly created native handle, which must be
+ * deleted manually with `native_handle_delete()` afterwards.
+ */
+// wrap: Fence -> hidl_handle
+inline bool wrapAs(hidl_handle* t, native_handle_t** nh, Fence const& l) {
+ size_t const baseSize = l.getFlattenedSize();
+ std::unique_ptr<uint8_t[]> baseBuffer(
+ new (std::nothrow) uint8_t[baseSize]);
+ if (!baseBuffer) {
+ return false;
+ }
+
+ size_t const baseNumFds = l.getFdCount();
+ std::unique_ptr<int[]> baseFds(
+ new (std::nothrow) int[baseNumFds]);
+ if (!baseFds) {
+ return false;
+ }
+
+ void* buffer = static_cast<void*>(baseBuffer.get());
+ size_t size = baseSize;
+ int* fds = static_cast<int*>(baseFds.get());
+ size_t numFds = baseNumFds;
+ if (l.flatten(buffer, size, fds, numFds) != NO_ERROR) {
+ return false;
+ }
+
+ void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+ size = baseSize;
+ int const* constFds = static_cast<int const*>(baseFds.get());
+ numFds = baseNumFds;
+ if (unflattenFence(t, nh, constBuffer, size, constFds, numFds)
+ != NO_ERROR) {
+ return false;
+ }
+
+ return true;
+}
+
+/**
+ * \brief Convert `hidl_handle` to `Fence`.
+ *
+ * \param[out] l The destination `Fence`. `l` must not have been used
+ * (`l->isValid()` must return `false`) before this function is called.
+ * \param[in] t The source `hidl_handle`.
+ *
+ * If \p t contains a valid file descriptor, it will be duplicated.
+ */
+// convert: hidl_handle -> Fence
+inline bool convertTo(Fence* l, hidl_handle const& t) {
+ int fd = native_handle_read_fd(t);
+ if (fd != -1) {
+ fd = dup(fd);
+ if (fd == -1) {
+ return false;
+ }
+ }
+ native_handle_t* nh = native_handle_create_from_fd(fd);
+ if (nh == nullptr) {
+ if (fd != -1) {
+ close(fd);
+ }
+ return false;
+ }
+
+ size_t const baseSize = getFenceFlattenedSize(t);
+ std::unique_ptr<uint8_t[]> baseBuffer(
+ new (std::nothrow) uint8_t[baseSize]);
+ if (!baseBuffer) {
+ native_handle_delete(nh);
+ return false;
+ }
+
+ size_t const baseNumFds = getFenceFdCount(t);
+ std::unique_ptr<int[]> baseFds(
+ new (std::nothrow) int[baseNumFds]);
+ if (!baseFds) {
+ native_handle_delete(nh);
+ return false;
+ }
+
+ void* buffer = static_cast<void*>(baseBuffer.get());
+ size_t size = baseSize;
+ int* fds = static_cast<int*>(baseFds.get());
+ size_t numFds = baseNumFds;
+ if (flattenFence(hidl_handle(nh), buffer, size, fds, numFds) != NO_ERROR) {
+ native_handle_delete(nh);
+ return false;
+ }
+ native_handle_delete(nh);
+
+ void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+ size = baseSize;
+ int const* constFds = static_cast<int const*>(baseFds.get());
+ numFds = baseNumFds;
+ if (l->unflatten(constBuffer, size, constFds, numFds) != NO_ERROR) {
+ return false;
+ }
+
+ return true;
+}
+
+// Ref: frameworks/native/libs/ui/Region.cpp
+
+/**
+ * \brief Unflatten `HRegion`.
+ *
+ * \param[out] t The destination `HRegion`.
+ * \param[in,out] buffer The pointer to the flat buffer.
+ * \param[in,out] size The size of the flat buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ */
+inline status_t unflatten(HRegion* t, void const*& buffer, size_t& size) {
+ if (size < sizeof(uint32_t)) {
+ return NO_MEMORY;
+ }
+
+ uint32_t numRects = 0;
+ FlattenableUtils::read(buffer, size, numRects);
+ if (size < numRects * sizeof(HRect)) {
+ return NO_MEMORY;
+ }
+ if (numRects > (UINT32_MAX / sizeof(HRect))) {
+ return NO_MEMORY;
+ }
+
+ t->resize(numRects);
+ for (size_t r = 0; r < numRects; ++r) {
+ ::android::Rect rect(::android::Rect::EMPTY_RECT);
+ status_t status = rect.unflatten(buffer, size);
+ if (status != NO_ERROR) {
+ return status;
+ }
+ FlattenableUtils::advance(buffer, size, sizeof(rect));
+ (*t)[r] = HRect{
+ static_cast<int32_t>(rect.left),
+ static_cast<int32_t>(rect.top),
+ static_cast<int32_t>(rect.right),
+ static_cast<int32_t>(rect.bottom)};
+ }
+ return NO_ERROR;
+}
+
+// Ref: frameworks/native/libs/gui/IGraphicBufferProducer.cpp:
+// IGraphicBufferProducer::QueueBufferInput
+
+/**
+ * \brief Return a lower bound on the size of the buffer required to flatten
+ * `HGraphicBufferProducer::QueueBufferInput`.
+ *
+ * \param[in] t The input `HGraphicBufferProducer::QueueBufferInput`.
+ * \return A lower bound on the size of the flat buffer.
+ */
+constexpr size_t minFlattenedSize(
+ HGraphicBufferProducer::QueueBufferInput const& /* t */) {
+ return sizeof(int64_t) + // timestamp
+ sizeof(int) + // isAutoTimestamp
+ sizeof(android_dataspace) + // dataSpace
+ sizeof(::android::Rect) + // crop
+ sizeof(int) + // scalingMode
+ sizeof(uint32_t) + // transform
+ sizeof(uint32_t) + // stickyTransform
+ sizeof(bool); // getFrameTimestamps
+}
+
+/**
+ * \brief Unflatten `HGraphicBufferProducer::QueueBufferInput`.
+ *
+ * \param[out] t The destination `HGraphicBufferProducer::QueueBufferInput`.
+ * \param[out] nh The underlying native handle for `t->fence`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * If the return value is `NO_ERROR` and `t->fence` contains a valid file
+ * descriptor, \p nh will be a newly created native handle holding that file
+ * descriptor. \p nh needs to be deleted with `native_handle_delete()`
+ * afterwards.
+ */
+inline status_t unflatten(
+ HGraphicBufferProducer::QueueBufferInput* t, native_handle_t** nh,
+ void const*& buffer, size_t& size, int const*& fds, size_t& numFds) {
+ if (size < minFlattenedSize(*t)) {
+ return NO_MEMORY;
+ }
+
+ FlattenableUtils::read(buffer, size, t->timestamp);
+ int lIsAutoTimestamp;
+ FlattenableUtils::read(buffer, size, lIsAutoTimestamp);
+ t->isAutoTimestamp = static_cast<int32_t>(lIsAutoTimestamp);
+ android_dataspace_t lDataSpace;
+ FlattenableUtils::read(buffer, size, lDataSpace);
+ t->dataSpace = static_cast<Dataspace>(lDataSpace);
+ ::android::Rect lCrop;
+ FlattenableUtils::read(buffer, size, lCrop);
+ t->crop = HRect{
+ static_cast<int32_t>(lCrop.left),
+ static_cast<int32_t>(lCrop.top),
+ static_cast<int32_t>(lCrop.right),
+ static_cast<int32_t>(lCrop.bottom)};
+ int lScalingMode;
+ FlattenableUtils::read(buffer, size, lScalingMode);
+ t->scalingMode = static_cast<int32_t>(lScalingMode);
+ FlattenableUtils::read(buffer, size, t->transform);
+ FlattenableUtils::read(buffer, size, t->stickyTransform);
+ FlattenableUtils::read(buffer, size, t->getFrameTimestamps);
+
+ status_t status = unflattenFence(&(t->fence), nh,
+ buffer, size, fds, numFds);
+ if (status != NO_ERROR) {
+ return status;
+ }
+ return unflatten(&(t->surfaceDamage), buffer, size);
+}
+
+/**
+ * \brief Wrap `IGraphicBufferProducer::QueueBufferInput` in
+ * `HGraphicBufferProducer::QueueBufferInput`.
+ *
+ * \param[out] t The wrapper of type
+ * `HGraphicBufferProducer::QueueBufferInput`.
+ * \param[out] nh The underlying native handle for `t->fence`.
+ * \param[in] l The source `IGraphicBufferProducer::QueueBufferInput`.
+ *
+ * If the return value is `true` and `t->fence` contains a valid file
+ * descriptor, \p nh will be a newly created native handle holding that file
+ * descriptor. \p nh needs to be deleted with `native_handle_delete()`
+ * afterwards.
+ */
+inline bool wrapAs(
+ HGraphicBufferProducer::QueueBufferInput* t,
+ native_handle_t** nh,
+ BGraphicBufferProducer::QueueBufferInput const& l) {
+
+ size_t const baseSize = l.getFlattenedSize();
+ std::unique_ptr<uint8_t[]> baseBuffer(
+ new (std::nothrow) uint8_t[baseSize]);
+ if (!baseBuffer) {
+ return false;
+ }
+
+ size_t const baseNumFds = l.getFdCount();
+ std::unique_ptr<int[]> baseFds(
+ new (std::nothrow) int[baseNumFds]);
+ if (!baseFds) {
+ return false;
+ }
+
+ void* buffer = static_cast<void*>(baseBuffer.get());
+ size_t size = baseSize;
+ int* fds = baseFds.get();
+ size_t numFds = baseNumFds;
+ if (l.flatten(buffer, size, fds, numFds) != NO_ERROR) {
+ return false;
+ }
+
+ void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+ size = baseSize;
+ int const* constFds = static_cast<int const*>(baseFds.get());
+ numFds = baseNumFds;
+ if (unflatten(t, nh, constBuffer, size, constFds, numFds) != NO_ERROR) {
+ return false;
+ }
+
+ return true;
+}
+
+// Ref: frameworks/native/libs/ui/FenceTime.cpp: FenceTime::Snapshot
+
+/**
+ * \brief Return the size of the non-fd buffer required to flatten
+ * `FenceTimeSnapshot`.
+ *
+ * \param[in] t The input `FenceTimeSnapshot`.
+ * \return The required size of the flat buffer.
+ */
+inline size_t getFlattenedSize(
+ HGraphicBufferProducer::FenceTimeSnapshot const& t) {
+ constexpr size_t min = sizeof(t.state);
+ switch (t.state) {
+ case HGraphicBufferProducer::FenceTimeSnapshot::State::EMPTY:
+ return min;
+ case HGraphicBufferProducer::FenceTimeSnapshot::State::FENCE:
+ return min + getFenceFlattenedSize(t.fence);
+ case HGraphicBufferProducer::FenceTimeSnapshot::State::SIGNAL_TIME:
+ return min + sizeof(
+ ::android::FenceTime::Snapshot::signalTime);
+ }
+ return 0;
+}
+
+/**
+ * \brief Return the number of file descriptors contained in
+ * `FenceTimeSnapshot`.
+ *
+ * \param[in] t The input `FenceTimeSnapshot`.
+ * \return The number of file descriptors contained in \p snapshot.
+ */
+inline size_t getFdCount(
+ HGraphicBufferProducer::FenceTimeSnapshot const& t) {
+ return t.state ==
+ HGraphicBufferProducer::FenceTimeSnapshot::State::FENCE ?
+ getFenceFdCount(t.fence) : 0;
+}
+
+/**
+ * \brief Flatten `FenceTimeSnapshot`.
+ *
+ * \param[in] t The source `FenceTimeSnapshot`.
+ * \param[out] nh The cloned native handle, if necessary.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * This function will duplicate the file descriptor in `t.fence` if `t.state ==
+ * FENCE`, in which case \p nh will be returned.
+ */
+inline status_t flatten(HGraphicBufferProducer::FenceTimeSnapshot const& t,
+ native_handle_t** nh,
+ void*& buffer, size_t& size, int*& fds, size_t& numFds) {
+ if (size < getFlattenedSize(t)) {
+ return NO_MEMORY;
+ }
+
+ *nh = nullptr;
+ switch (t.state) {
+ case HGraphicBufferProducer::FenceTimeSnapshot::State::EMPTY:
+ FlattenableUtils::write(buffer, size,
+ ::android::FenceTime::Snapshot::State::EMPTY);
+ return NO_ERROR;
+ case HGraphicBufferProducer::FenceTimeSnapshot::State::FENCE:
+ FlattenableUtils::write(buffer, size,
+ ::android::FenceTime::Snapshot::State::FENCE);
+ *nh = t.fence.getNativeHandle() == nullptr ?
+ nullptr : native_handle_clone(t.fence);
+ return flattenFence(hidl_handle(*nh), buffer, size, fds, numFds);
+ case HGraphicBufferProducer::FenceTimeSnapshot::State::SIGNAL_TIME:
+ FlattenableUtils::write(buffer, size,
+ ::android::FenceTime::Snapshot::State::SIGNAL_TIME);
+ FlattenableUtils::write(buffer, size, t.signalTimeNs);
+ return NO_ERROR;
+ }
+ return NO_ERROR;
+}
+
+// Ref: frameworks/native/libs/gui/FrameTimestamps.cpp: FrameEventsDelta
+
+/**
+ * \brief Return a lower bound on the size of the non-fd buffer required to
+ * flatten `FrameEventsDelta`.
+ *
+ * \param[in] t The input `FrameEventsDelta`.
+ * \return A lower bound on the size of the flat buffer.
+ */
+constexpr size_t minFlattenedSize(
+ HGraphicBufferProducer::FrameEventsDelta const& /* t */) {
+ return sizeof(uint64_t) + // mFrameNumber
+ sizeof(uint8_t) + // mIndex
+ sizeof(uint8_t) + // mAddPostCompositeCalled
+ sizeof(uint8_t) + // mAddRetireCalled
+ sizeof(uint8_t) + // mAddReleaseCalled
+ sizeof(nsecs_t) + // mPostedTime
+ sizeof(nsecs_t) + // mRequestedPresentTime
+ sizeof(nsecs_t) + // mLatchTime
+ sizeof(nsecs_t) + // mFirstRefreshStartTime
+ sizeof(nsecs_t); // mLastRefreshStartTime
+}
+
+/**
+ * \brief Return the size of the non-fd buffer required to flatten
+ * `FrameEventsDelta`.
+ *
+ * \param[in] t The input `FrameEventsDelta`.
+ * \return The required size of the flat buffer.
+ */
+inline size_t getFlattenedSize(
+ HGraphicBufferProducer::FrameEventsDelta const& t) {
+ return minFlattenedSize(t) +
+ getFlattenedSize(t.gpuCompositionDoneFence) +
+ getFlattenedSize(t.displayPresentFence) +
+ getFlattenedSize(t.displayRetireFence) +
+ getFlattenedSize(t.releaseFence);
+};
+
+/**
+ * \brief Return the number of file descriptors contained in
+ * `FrameEventsDelta`.
+ *
+ * \param[in] t The input `FrameEventsDelta`.
+ * \return The number of file descriptors contained in \p t.
+ */
+inline size_t getFdCount(
+ HGraphicBufferProducer::FrameEventsDelta const& t) {
+ return getFdCount(t.gpuCompositionDoneFence) +
+ getFdCount(t.displayPresentFence) +
+ getFdCount(t.displayRetireFence) +
+ getFdCount(t.releaseFence);
+};
+
+/**
+ * \brief Flatten `FrameEventsDelta`.
+ *
+ * \param[in] t The source `FrameEventsDelta`.
+ * \param[out] nh The array of native handles that are cloned.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * On success, this function will duplicate file descriptors contained in \p t.
+ * The cloned native handles will be stored in \p nh. These native handles will
+ * need to be closed by the caller.
+ */
+// Ref: frameworks/native/libs/gui/FrameTimestamp.cpp:
+// FrameEventsDelta::flatten
+inline status_t flatten(HGraphicBufferProducer::FrameEventsDelta const& t,
+ std::vector<native_handle_t*>* nh,
+ void*& buffer, size_t& size, int*& fds, size_t numFds) {
+ // Check that t.index is within a valid range.
+ if (t.index >= static_cast<uint32_t>(FrameEventHistory::MAX_FRAME_HISTORY)
+ || t.index > std::numeric_limits<uint8_t>::max()) {
+ return BAD_VALUE;
+ }
+
+ FlattenableUtils::write(buffer, size, t.frameNumber);
+
+ // These are static_cast to uint8_t for alignment.
+ FlattenableUtils::write(buffer, size, static_cast<uint8_t>(t.index));
+ FlattenableUtils::write(
+ buffer, size, static_cast<uint8_t>(t.addPostCompositeCalled));
+ FlattenableUtils::write(
+ buffer, size, static_cast<uint8_t>(t.addRetireCalled));
+ FlattenableUtils::write(
+ buffer, size, static_cast<uint8_t>(t.addReleaseCalled));
+
+ FlattenableUtils::write(buffer, size, t.postedTimeNs);
+ FlattenableUtils::write(buffer, size, t.requestedPresentTimeNs);
+ FlattenableUtils::write(buffer, size, t.latchTimeNs);
+ FlattenableUtils::write(buffer, size, t.firstRefreshStartTimeNs);
+ FlattenableUtils::write(buffer, size, t.lastRefreshStartTimeNs);
+ FlattenableUtils::write(buffer, size, t.dequeueReadyTime);
+
+ // Fences
+ HGraphicBufferProducer::FenceTimeSnapshot const* tSnapshot[4];
+ tSnapshot[0] = &t.gpuCompositionDoneFence;
+ tSnapshot[1] = &t.displayPresentFence;
+ tSnapshot[2] = &t.displayRetireFence;
+ tSnapshot[3] = &t.releaseFence;
+ nh->resize(4);
+ for (size_t snapshotIndex = 0; snapshotIndex < 4; ++snapshotIndex) {
+ status_t status = flatten(
+ *(tSnapshot[snapshotIndex]),
+ &((*nh)[snapshotIndex]),
+ buffer, size, fds, numFds);
+ if (status != NO_ERROR) {
+ while (snapshotIndex > 0) {
+ --snapshotIndex;
+ native_handle_close((*nh)[snapshotIndex]);
+ native_handle_delete((*nh)[snapshotIndex]);
+ (*nh)[snapshotIndex] = nullptr;
+ }
+ return status;
+ }
+ }
+ return NO_ERROR;
+}
+
+// Ref: frameworks/native/libs/gui/FrameTimestamps.cpp: FrameEventHistoryDelta
+
+/**
+ * \brief Return the size of the non-fd buffer required to flatten
+ * `HGraphicBufferProducer::FrameEventHistoryDelta`.
+ *
+ * \param[in] t The input `HGraphicBufferProducer::FrameEventHistoryDelta`.
+ * \return The required size of the flat buffer.
+ */
+inline size_t getFlattenedSize(
+ HGraphicBufferProducer::FrameEventHistoryDelta const& t) {
+ size_t size = 4 + // mDeltas.size()
+ sizeof(t.compositorTiming);
+ for (size_t i = 0; i < t.deltas.size(); ++i) {
+ size += getFlattenedSize(t.deltas[i]);
+ }
+ return size;
+}
+
+/**
+ * \brief Return the number of file descriptors contained in
+ * `HGraphicBufferProducer::FrameEventHistoryDelta`.
+ *
+ * \param[in] t The input `HGraphicBufferProducer::FrameEventHistoryDelta`.
+ * \return The number of file descriptors contained in \p t.
+ */
+inline size_t getFdCount(
+ HGraphicBufferProducer::FrameEventHistoryDelta const& t) {
+ size_t numFds = 0;
+ for (size_t i = 0; i < t.deltas.size(); ++i) {
+ numFds += getFdCount(t.deltas[i]);
+ }
+ return numFds;
+}
+
+/**
+ * \brief Flatten `FrameEventHistoryDelta`.
+ *
+ * \param[in] t The source `FrameEventHistoryDelta`.
+ * \param[out] nh The array of arrays of cloned native handles.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * On success, this function will duplicate file descriptors contained in \p t.
+ * The cloned native handles will be stored in \p nh. Before making the call, \p
+ * nh should have enough space to store `n` pointers to arrays of native
+ * handles, where `n` is the length of `t.deltas`, and each `nh[i]` should have
+ * enough space to store `4` native handles.
+ */
+inline status_t flatten(
+ HGraphicBufferProducer::FrameEventHistoryDelta const& t,
+ std::vector<std::vector<native_handle_t*> >* nh,
+ void*& buffer, size_t& size, int*& fds, size_t& numFds) {
+ if (t.deltas.size() > ::android::FrameEventHistory::MAX_FRAME_HISTORY) {
+ return BAD_VALUE;
+ }
+ if (size < getFlattenedSize(t)) {
+ return NO_MEMORY;
+ }
+
+ FlattenableUtils::write(buffer, size, t.compositorTiming);
+
+ FlattenableUtils::write(buffer, size, static_cast<uint32_t>(t.deltas.size()));
+ nh->resize(t.deltas.size());
+ for (size_t deltaIndex = 0; deltaIndex < t.deltas.size(); ++deltaIndex) {
+ status_t status = flatten(
+ t.deltas[deltaIndex], &((*nh)[deltaIndex]),
+ buffer, size, fds, numFds);
+ if (status != NO_ERROR) {
+ while (deltaIndex > 0) {
+ --deltaIndex;
+ for (size_t snapshotIndex = 0;
+ snapshotIndex < 4; ++snapshotIndex) {
+ native_handle_close((*nh)[deltaIndex][snapshotIndex]);
+ native_handle_delete((*nh)[deltaIndex][snapshotIndex]);
+ (*nh)[deltaIndex][snapshotIndex] = nullptr;
+ }
+ }
+ return status;
+ }
+ }
+ return NO_ERROR;
+}
+
+/**
+ * \brief Convert `HGraphicBufferProducer::FrameEventHistoryDelta` to
+ * `::android::FrameEventHistoryDelta`.
+ *
+ * \param[out] l The destination `::android::FrameEventHistoryDelta`.
+ * \param[in] t The source `HGraphicBufferProducer::FrameEventHistoryDelta`.
+ *
+ * This function will duplicate all file descriptors contained in \p t.
+ */
+inline bool convertTo(
+ ::android::FrameEventHistoryDelta* l,
+ HGraphicBufferProducer::FrameEventHistoryDelta const& t) {
+
+ size_t const baseSize = getFlattenedSize(t);
+ std::unique_ptr<uint8_t[]> baseBuffer(
+ new (std::nothrow) uint8_t[baseSize]);
+ if (!baseBuffer) {
+ return false;
+ }
+
+ size_t const baseNumFds = getFdCount(t);
+ std::unique_ptr<int[]> baseFds(
+ new (std::nothrow) int[baseNumFds]);
+ if (!baseFds) {
+ return false;
+ }
+
+ void* buffer = static_cast<void*>(baseBuffer.get());
+ size_t size = baseSize;
+ int* fds = static_cast<int*>(baseFds.get());
+ size_t numFds = baseNumFds;
+ std::vector<std::vector<native_handle_t*> > nhAA;
+ if (flatten(t, &nhAA, buffer, size, fds, numFds) != NO_ERROR) {
+ return false;
+ }
+
+ void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+ size = baseSize;
+ int const* constFds = static_cast<int const*>(baseFds.get());
+ numFds = baseNumFds;
+ if (l->unflatten(constBuffer, size, constFds, numFds) != NO_ERROR) {
+ for (auto nhA : nhAA) {
+ for (auto nh : nhA) {
+ if (nh != nullptr) {
+ native_handle_close(nh);
+ native_handle_delete(nh);
+ }
+ }
+ }
+ return false;
+ }
+
+ for (auto nhA : nhAA) {
+ for (auto nh : nhA) {
+ if (nh != nullptr) {
+ native_handle_delete(nh);
+ }
+ }
+ }
+ return true;
+}
+
+// Ref: frameworks/native/libs/gui/IGraphicBufferProducer.cpp:
+// IGraphicBufferProducer::QueueBufferOutput
+
+/**
+ * \brief Convert `HGraphicBufferProducer::QueueBufferOutput` to
+ * `IGraphicBufferProducer::QueueBufferOutput`.
+ *
+ * \param[out] l The destination `IGraphicBufferProducer::QueueBufferOutput`.
+ * \param[in] t The source `HGraphicBufferProducer::QueueBufferOutput`.
+ *
+ * This function will duplicate all file descriptors contained in \p t.
+ */
+// convert: HGraphicBufferProducer::QueueBufferOutput ->
+// IGraphicBufferProducer::QueueBufferOutput
+inline bool convertTo(
+ BGraphicBufferProducer::QueueBufferOutput* l,
+ HGraphicBufferProducer::QueueBufferOutput const& t) {
+ if (!convertTo(&(l->frameTimestamps), t.frameTimestamps)) {
+ return false;
+ }
+ l->width = t.width;
+ l->height = t.height;
+ l->transformHint = t.transformHint;
+ l->numPendingBuffers = t.numPendingBuffers;
+ l->nextFrameNumber = t.nextFrameNumber;
+ l->bufferReplaced = t.bufferReplaced;
+ return true;
+}
+
+/**
+ * \brief Convert `IGraphicBufferProducer::DisconnectMode` to
+ * `HGraphicBufferProducer::DisconnectMode`.
+ *
+ * \param[in] l The source `IGraphicBufferProducer::DisconnectMode`.
+ * \return The corresponding `HGraphicBufferProducer::DisconnectMode`.
+ */
+inline HGraphicBufferProducer::DisconnectMode toHDisconnectMode(
+ BGraphicBufferProducer::DisconnectMode l) {
+ switch (l) {
+ case BGraphicBufferProducer::DisconnectMode::Api:
+ return HGraphicBufferProducer::DisconnectMode::API;
+ case BGraphicBufferProducer::DisconnectMode::AllLocal:
+ return HGraphicBufferProducer::DisconnectMode::ALL_LOCAL;
+ }
+ return HGraphicBufferProducer::DisconnectMode::API;
+}
+
+// H2BGraphicBufferProducer
+
+status_t H2BGraphicBufferProducer::requestBuffer(int slot, sp<GraphicBuffer>* buf) {
+ *buf = new GraphicBuffer();
+ status_t fnStatus;
+ status_t transStatus = toStatusT(mBase->requestBuffer(
+ static_cast<int32_t>(slot),
+ [&fnStatus, &buf] (Status status, AnwBuffer const& buffer) {
+ fnStatus = toStatusT(status);
+ if (!convertTo(buf->get(), buffer)) {
+ fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+ }
+ }));
+ return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t H2BGraphicBufferProducer::setMaxDequeuedBufferCount(
+ int maxDequeuedBuffers) {
+ return toStatusT(mBase->setMaxDequeuedBufferCount(
+ static_cast<int32_t>(maxDequeuedBuffers)));
+}
+
+status_t H2BGraphicBufferProducer::setAsyncMode(bool async) {
+ return toStatusT(mBase->setAsyncMode(async));
+}
+
+status_t H2BGraphicBufferProducer::dequeueBuffer(
+ int* slot, sp<Fence>* fence,
+ uint32_t w, uint32_t h, ::android::PixelFormat format,
+ uint32_t usage, FrameEventHistoryDelta* outTimestamps) {
+ *fence = new Fence();
+ status_t fnStatus;
+ status_t transStatus = toStatusT(mBase->dequeueBuffer(
+ w, h, static_cast<PixelFormat>(format), usage,
+ outTimestamps != nullptr,
+ [&fnStatus, slot, fence, outTimestamps] (
+ Status status,
+ int32_t tSlot,
+ hidl_handle const& tFence,
+ HGraphicBufferProducer::FrameEventHistoryDelta const& tTs) {
+ fnStatus = toStatusT(status);
+ *slot = tSlot;
+ if (!convertTo(fence->get(), tFence)) {
+ ALOGE("H2BGraphicBufferProducer::dequeueBuffer - "
+ "Invalid output fence");
+ fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+ }
+ if (outTimestamps && !convertTo(outTimestamps, tTs)) {
+ ALOGE("H2BGraphicBufferProducer::dequeueBuffer - "
+ "Invalid output timestamps");
+ fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+ }
+ }));
+ return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t H2BGraphicBufferProducer::detachBuffer(int slot) {
+ return toStatusT(mBase->detachBuffer(static_cast<int>(slot)));
+}
+
+status_t H2BGraphicBufferProducer::detachNextBuffer(
+ sp<GraphicBuffer>* outBuffer, sp<Fence>* outFence) {
+ *outBuffer = new GraphicBuffer();
+ *outFence = new Fence();
+ status_t fnStatus;
+ status_t transStatus = toStatusT(mBase->detachNextBuffer(
+ [&fnStatus, outBuffer, outFence] (
+ Status status,
+ AnwBuffer const& tBuffer,
+ hidl_handle const& tFence) {
+ fnStatus = toStatusT(status);
+ if (!convertTo(outFence->get(), tFence)) {
+ ALOGE("H2BGraphicBufferProducer::detachNextBuffer - "
+ "Invalid output fence");
+ fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+ }
+ if (!convertTo(outBuffer->get(), tBuffer)) {
+ ALOGE("H2BGraphicBufferProducer::detachNextBuffer - "
+ "Invalid output buffer");
+ fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+ }
+ }));
+ return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t H2BGraphicBufferProducer::attachBuffer(
+ int* outSlot, const sp<GraphicBuffer>& buffer) {
+ AnwBuffer tBuffer;
+ wrapAs(&tBuffer, *buffer);
+ status_t fnStatus;
+ status_t transStatus = toStatusT(mBase->attachBuffer(tBuffer,
+ [&fnStatus, outSlot] (Status status, int32_t slot) {
+ fnStatus = toStatusT(status);
+ *outSlot = slot;
+ }));
+ return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t H2BGraphicBufferProducer::queueBuffer(
+ int slot,
+ const QueueBufferInput& input,
+ QueueBufferOutput* output) {
+ HGraphicBufferProducer::QueueBufferInput tInput;
+ native_handle_t* nh;
+ if (!wrapAs(&tInput, &nh, input)) {
+ ALOGE("H2BGraphicBufferProducer::queueBuffer - "
+ "Invalid input");
+ return BAD_VALUE;
+ }
+ status_t fnStatus;
+ status_t transStatus = toStatusT(mBase->queueBuffer(slot, tInput,
+ [&fnStatus, output] (
+ Status status,
+ HGraphicBufferProducer::QueueBufferOutput const& tOutput) {
+ fnStatus = toStatusT(status);
+ if (!convertTo(output, tOutput)) {
+ ALOGE("H2BGraphicBufferProducer::queueBuffer - "
+ "Invalid output");
+ fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+ }
+ }));
+ native_handle_delete(nh);
+ return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t H2BGraphicBufferProducer::cancelBuffer(int slot, const sp<Fence>& fence) {
+ hidl_handle tFence;
+ native_handle_t* nh = nullptr;
+ if ((fence == nullptr) || !wrapAs(&tFence, &nh, *fence)) {
+ ALOGE("H2BGraphicBufferProducer::cancelBuffer - "
+ "Invalid input fence");
+ return BAD_VALUE;
+ }
+
+ status_t status = toStatusT(mBase->cancelBuffer(
+ static_cast<int32_t>(slot), tFence));
+ native_handle_delete(nh);
+ return status;
+}
+
+int H2BGraphicBufferProducer::query(int what, int* value) {
+ int result;
+ status_t transStatus = toStatusT(mBase->query(
+ static_cast<int32_t>(what),
+ [&result, value] (int32_t tResult, int32_t tValue) {
+ result = static_cast<int>(tResult);
+ *value = static_cast<int>(tValue);
+ }));
+ return transStatus == NO_ERROR ? result : static_cast<int>(transStatus);
+}
+
+status_t H2BGraphicBufferProducer::connect(
+ const sp<IProducerListener>& listener, int api,
+ bool producerControlledByApp, QueueBufferOutput* output) {
+ sp<HProducerListener> tListener = listener == nullptr ?
+ nullptr : new B2HProducerListener(listener);
+ status_t fnStatus;
+ status_t transStatus = toStatusT(mBase->connect(
+ tListener, static_cast<int32_t>(api), producerControlledByApp,
+ [&fnStatus, output] (
+ Status status,
+ HGraphicBufferProducer::QueueBufferOutput const& tOutput) {
+ fnStatus = toStatusT(status);
+ if (!convertTo(output, tOutput)) {
+ ALOGE("H2BGraphicBufferProducer::connect - "
+ "Invalid output");
+ fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+ }
+ }));
+ return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t H2BGraphicBufferProducer::disconnect(int api, DisconnectMode mode) {
+ return toStatusT(mBase->disconnect(
+ static_cast<int32_t>(api), toHDisconnectMode(mode)));
+}
+
+status_t H2BGraphicBufferProducer::setSidebandStream(
+ const sp<NativeHandle>& stream) {
+ return toStatusT(mBase->setSidebandStream(stream->handle()));
+}
+
+void H2BGraphicBufferProducer::allocateBuffers(uint32_t width, uint32_t height,
+ ::android::PixelFormat format, uint32_t usage) {
+ mBase->allocateBuffers(
+ width, height, static_cast<PixelFormat>(format), usage);
+}
+
+status_t H2BGraphicBufferProducer::allowAllocation(bool allow) {
+ return toStatusT(mBase->allowAllocation(allow));
+}
+
+status_t H2BGraphicBufferProducer::setGenerationNumber(uint32_t generationNumber) {
+ return toStatusT(mBase->setGenerationNumber(generationNumber));
+}
+
+String8 H2BGraphicBufferProducer::getConsumerName() const {
+ String8 lName;
+ mBase->getConsumerName([&lName] (hidl_string const& name) {
+ lName = name.c_str();
+ });
+ return lName;
+}
+
+status_t H2BGraphicBufferProducer::setSharedBufferMode(bool sharedBufferMode) {
+ return toStatusT(mBase->setSharedBufferMode(sharedBufferMode));
+}
+
+status_t H2BGraphicBufferProducer::setAutoRefresh(bool autoRefresh) {
+ return toStatusT(mBase->setAutoRefresh(autoRefresh));
+}
+
+status_t H2BGraphicBufferProducer::setDequeueTimeout(nsecs_t timeout) {
+ return toStatusT(mBase->setDequeueTimeout(static_cast<int64_t>(timeout)));
+}
+
+status_t H2BGraphicBufferProducer::getLastQueuedBuffer(
+ sp<GraphicBuffer>* outBuffer,
+ sp<Fence>* outFence,
+ float outTransformMatrix[16]) {
+ status_t fnStatus;
+ status_t transStatus = toStatusT(mBase->getLastQueuedBuffer(
+ [&fnStatus, outBuffer, outFence, &outTransformMatrix] (
+ Status status,
+ AnwBuffer const& buffer,
+ hidl_handle const& fence,
+ hidl_array<float, 16> const& transformMatrix) {
+ fnStatus = toStatusT(status);
+ *outBuffer = new GraphicBuffer();
+ if (!convertTo(outBuffer->get(), buffer)) {
+ ALOGE("H2BGraphicBufferProducer::getLastQueuedBuffer - "
+ "Invalid output buffer");
+ fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+ }
+ *outFence = new Fence();
+ if (!convertTo(outFence->get(), fence)) {
+ ALOGE("H2BGraphicBufferProducer::getLastQueuedBuffer - "
+ "Invalid output fence");
+ fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+ }
+ std::copy(transformMatrix.data(),
+ transformMatrix.data() + 16,
+ outTransformMatrix);
+ }));
+ return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+void H2BGraphicBufferProducer::getFrameTimestamps(FrameEventHistoryDelta* outDelta) {
+ mBase->getFrameTimestamps([outDelta] (
+ HGraphicBufferProducer::FrameEventHistoryDelta const& tDelta) {
+ convertTo(outDelta, tDelta);
+ });
+}
+
+status_t H2BGraphicBufferProducer::getUniqueId(uint64_t* outId) const {
+ status_t fnStatus;
+ status_t transStatus = toStatusT(mBase->getUniqueId(
+ [&fnStatus, outId] (Status status, uint64_t id) {
+ fnStatus = toStatusT(status);
+ *outId = id;
+ }));
+ return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+} // namespace utils
+} // namespace V1_0
+} // namespace bufferqueue
+} // namespace graphics
+} // namespace hardware
+} // namespace android
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