| /* |
| * Copyright (C) 2007 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 "GraphicBuffer" |
| #define ATRACE_TAG ATRACE_TAG_GRAPHICS |
| |
| #include <ui/GraphicBuffer.h> |
| |
| #include <cutils/atomic.h> |
| |
| #include <grallocusage/GrallocUsageConversion.h> |
| |
| #ifndef LIBUI_IN_VNDK |
| #include <ui/BufferHubBuffer.h> |
| #endif // LIBUI_IN_VNDK |
| |
| #include <ui/GraphicBufferAllocator.h> |
| #include <ui/GraphicBufferMapper.h> |
| #include <utils/Trace.h> |
| |
| namespace android { |
| |
| // =========================================================================== |
| // Buffer and implementation of ANativeWindowBuffer |
| // =========================================================================== |
| |
| static uint64_t getUniqueId() { |
| static volatile int32_t nextId = 0; |
| uint64_t id = static_cast<uint64_t>(getpid()) << 32; |
| id |= static_cast<uint32_t>(android_atomic_inc(&nextId)); |
| return id; |
| } |
| |
| sp<GraphicBuffer> GraphicBuffer::from(ANativeWindowBuffer* anwb) { |
| return static_cast<GraphicBuffer *>(anwb); |
| } |
| |
| GraphicBuffer* GraphicBuffer::fromAHardwareBuffer(AHardwareBuffer* buffer) { |
| return reinterpret_cast<GraphicBuffer*>(buffer); |
| } |
| |
| GraphicBuffer const* GraphicBuffer::fromAHardwareBuffer(AHardwareBuffer const* buffer) { |
| return reinterpret_cast<GraphicBuffer const*>(buffer); |
| } |
| |
| AHardwareBuffer* GraphicBuffer::toAHardwareBuffer() { |
| return reinterpret_cast<AHardwareBuffer*>(this); |
| } |
| |
| AHardwareBuffer const* GraphicBuffer::toAHardwareBuffer() const { |
| return reinterpret_cast<AHardwareBuffer const*>(this); |
| } |
| |
| GraphicBuffer::GraphicBuffer() |
| : BASE(), mOwner(ownData), mBufferMapper(GraphicBufferMapper::get()), |
| mInitCheck(NO_ERROR), mId(getUniqueId()), mGenerationNumber(0) |
| { |
| width = |
| height = |
| stride = |
| format = |
| usage_deprecated = 0; |
| usage = 0; |
| layerCount = 0; |
| handle = nullptr; |
| } |
| |
| // deprecated |
| GraphicBuffer::GraphicBuffer(uint32_t inWidth, uint32_t inHeight, |
| PixelFormat inFormat, uint32_t inUsage, std::string requestorName) |
| : GraphicBuffer(inWidth, inHeight, inFormat, 1, static_cast<uint64_t>(inUsage), requestorName) |
| { |
| } |
| |
| GraphicBuffer::GraphicBuffer(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat, |
| uint32_t inLayerCount, uint64_t inUsage, std::string requestorName) |
| : GraphicBuffer() { |
| mInitCheck = initWithSize(inWidth, inHeight, inFormat, inLayerCount, inUsage, |
| std::move(requestorName)); |
| } |
| |
| // deprecated |
| GraphicBuffer::GraphicBuffer(uint32_t inWidth, uint32_t inHeight, |
| PixelFormat inFormat, uint32_t inLayerCount, uint32_t inUsage, |
| uint32_t inStride, native_handle_t* inHandle, bool keepOwnership) |
| : GraphicBuffer(inHandle, keepOwnership ? TAKE_HANDLE : WRAP_HANDLE, |
| inWidth, inHeight, inFormat, inLayerCount, static_cast<uint64_t>(inUsage), |
| inStride) |
| { |
| } |
| |
| GraphicBuffer::GraphicBuffer(const native_handle_t* inHandle, HandleWrapMethod method, |
| uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat, |
| uint32_t inLayerCount, uint64_t inUsage, uint32_t inStride) |
| : GraphicBuffer() { |
| mInitCheck = initWithHandle(inHandle, method, inWidth, inHeight, inFormat, inLayerCount, |
| inUsage, inStride); |
| } |
| |
| #ifndef LIBUI_IN_VNDK |
| GraphicBuffer::GraphicBuffer(std::unique_ptr<BufferHubBuffer> buffer) : GraphicBuffer() { |
| if (buffer == nullptr) { |
| mInitCheck = BAD_VALUE; |
| return; |
| } |
| |
| mInitCheck = initWithHandle(buffer->duplicateHandle(), /*method=*/TAKE_UNREGISTERED_HANDLE, |
| buffer->desc().width, buffer->desc().height, |
| static_cast<PixelFormat>(buffer->desc().format), |
| buffer->desc().layers, buffer->desc().usage, buffer->desc().stride); |
| mBufferId = buffer->id(); |
| mBufferHubBuffer = std::move(buffer); |
| } |
| #endif // LIBUI_IN_VNDK |
| |
| GraphicBuffer::~GraphicBuffer() |
| { |
| ATRACE_CALL(); |
| if (handle) { |
| free_handle(); |
| } |
| for (auto& [callback, context] : mDeathCallbacks) { |
| callback(context, mId); |
| } |
| } |
| |
| void GraphicBuffer::free_handle() |
| { |
| if (mOwner == ownHandle) { |
| mBufferMapper.freeBuffer(handle); |
| } else if (mOwner == ownData) { |
| GraphicBufferAllocator& allocator(GraphicBufferAllocator::get()); |
| allocator.free(handle); |
| } |
| handle = nullptr; |
| } |
| |
| status_t GraphicBuffer::initCheck() const { |
| return static_cast<status_t>(mInitCheck); |
| } |
| |
| void GraphicBuffer::dumpAllocationsToSystemLog() |
| { |
| GraphicBufferAllocator::dumpToSystemLog(); |
| } |
| |
| ANativeWindowBuffer* GraphicBuffer::getNativeBuffer() const |
| { |
| return static_cast<ANativeWindowBuffer*>( |
| const_cast<GraphicBuffer*>(this)); |
| } |
| |
| status_t GraphicBuffer::reallocate(uint32_t inWidth, uint32_t inHeight, |
| PixelFormat inFormat, uint32_t inLayerCount, uint64_t inUsage) |
| { |
| if (mOwner != ownData) |
| return INVALID_OPERATION; |
| |
| if (handle && |
| static_cast<int>(inWidth) == width && |
| static_cast<int>(inHeight) == height && |
| inFormat == format && |
| inLayerCount == layerCount && |
| inUsage == usage) |
| return NO_ERROR; |
| |
| if (handle) { |
| GraphicBufferAllocator& allocator(GraphicBufferAllocator::get()); |
| allocator.free(handle); |
| handle = nullptr; |
| } |
| return initWithSize(inWidth, inHeight, inFormat, inLayerCount, inUsage, "[Reallocation]"); |
| } |
| |
| bool GraphicBuffer::needsReallocation(uint32_t inWidth, uint32_t inHeight, |
| PixelFormat inFormat, uint32_t inLayerCount, uint64_t inUsage) |
| { |
| if (static_cast<int>(inWidth) != width) return true; |
| if (static_cast<int>(inHeight) != height) return true; |
| if (inFormat != format) return true; |
| if (inLayerCount != layerCount) return true; |
| if ((usage & inUsage) != inUsage) return true; |
| if ((usage & USAGE_PROTECTED) != (inUsage & USAGE_PROTECTED)) return true; |
| return false; |
| } |
| |
| status_t GraphicBuffer::initWithSize(uint32_t inWidth, uint32_t inHeight, |
| PixelFormat inFormat, uint32_t inLayerCount, uint64_t inUsage, |
| std::string requestorName) |
| { |
| GraphicBufferAllocator& allocator = GraphicBufferAllocator::get(); |
| uint32_t outStride = 0; |
| status_t err = allocator.allocate(inWidth, inHeight, inFormat, inLayerCount, |
| inUsage, &handle, &outStride, mId, |
| std::move(requestorName)); |
| if (err == NO_ERROR) { |
| mBufferMapper.getTransportSize(handle, &mTransportNumFds, &mTransportNumInts); |
| |
| width = static_cast<int>(inWidth); |
| height = static_cast<int>(inHeight); |
| format = inFormat; |
| layerCount = inLayerCount; |
| usage = inUsage; |
| usage_deprecated = int(usage); |
| stride = static_cast<int>(outStride); |
| } |
| return err; |
| } |
| |
| status_t GraphicBuffer::initWithHandle(const native_handle_t* inHandle, HandleWrapMethod method, |
| uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat, |
| uint32_t inLayerCount, uint64_t inUsage, uint32_t inStride) { |
| ANativeWindowBuffer::width = static_cast<int>(inWidth); |
| ANativeWindowBuffer::height = static_cast<int>(inHeight); |
| ANativeWindowBuffer::stride = static_cast<int>(inStride); |
| ANativeWindowBuffer::format = inFormat; |
| ANativeWindowBuffer::usage = inUsage; |
| ANativeWindowBuffer::usage_deprecated = int(inUsage); |
| |
| ANativeWindowBuffer::layerCount = inLayerCount; |
| |
| mOwner = (method == WRAP_HANDLE) ? ownNone : ownHandle; |
| |
| if (method == TAKE_UNREGISTERED_HANDLE || method == CLONE_HANDLE) { |
| buffer_handle_t importedHandle; |
| status_t err = mBufferMapper.importBuffer(inHandle, inWidth, inHeight, inLayerCount, |
| inFormat, inUsage, inStride, &importedHandle); |
| if (err != NO_ERROR) { |
| initWithHandle(nullptr, WRAP_HANDLE, 0, 0, 0, 0, 0, 0); |
| |
| return err; |
| } |
| |
| if (method == TAKE_UNREGISTERED_HANDLE) { |
| native_handle_close(inHandle); |
| native_handle_delete(const_cast<native_handle_t*>(inHandle)); |
| } |
| |
| inHandle = importedHandle; |
| mBufferMapper.getTransportSize(inHandle, &mTransportNumFds, &mTransportNumInts); |
| } |
| |
| ANativeWindowBuffer::handle = inHandle; |
| |
| return NO_ERROR; |
| } |
| |
| status_t GraphicBuffer::lock(uint32_t inUsage, void** vaddr, int32_t* outBytesPerPixel, |
| int32_t* outBytesPerStride) { |
| const Rect lockBounds(width, height); |
| status_t res = lock(inUsage, lockBounds, vaddr, outBytesPerPixel, outBytesPerStride); |
| return res; |
| } |
| |
| status_t GraphicBuffer::lock(uint32_t inUsage, const Rect& rect, void** vaddr, |
| int32_t* outBytesPerPixel, int32_t* outBytesPerStride) { |
| if (rect.left < 0 || rect.right > width || |
| rect.top < 0 || rect.bottom > height) { |
| ALOGE("locking pixels (%d,%d,%d,%d) outside of buffer (w=%d, h=%d)", |
| rect.left, rect.top, rect.right, rect.bottom, |
| width, height); |
| return BAD_VALUE; |
| } |
| |
| status_t res = getBufferMapper().lock(handle, inUsage, rect, vaddr, outBytesPerPixel, |
| outBytesPerStride); |
| |
| return res; |
| } |
| |
| status_t GraphicBuffer::lockYCbCr(uint32_t inUsage, android_ycbcr* ycbcr) |
| { |
| const Rect lockBounds(width, height); |
| status_t res = lockYCbCr(inUsage, lockBounds, ycbcr); |
| return res; |
| } |
| |
| status_t GraphicBuffer::lockYCbCr(uint32_t inUsage, const Rect& rect, |
| android_ycbcr* ycbcr) |
| { |
| if (rect.left < 0 || rect.right > width || |
| rect.top < 0 || rect.bottom > height) { |
| ALOGE("locking pixels (%d,%d,%d,%d) outside of buffer (w=%d, h=%d)", |
| rect.left, rect.top, rect.right, rect.bottom, |
| width, height); |
| return BAD_VALUE; |
| } |
| status_t res = getBufferMapper().lockYCbCr(handle, inUsage, rect, ycbcr); |
| return res; |
| } |
| |
| status_t GraphicBuffer::unlock() |
| { |
| status_t res = getBufferMapper().unlock(handle); |
| return res; |
| } |
| |
| status_t GraphicBuffer::lockAsync(uint32_t inUsage, void** vaddr, int fenceFd, |
| int32_t* outBytesPerPixel, int32_t* outBytesPerStride) { |
| const Rect lockBounds(width, height); |
| status_t res = |
| lockAsync(inUsage, lockBounds, vaddr, fenceFd, outBytesPerPixel, outBytesPerStride); |
| return res; |
| } |
| |
| status_t GraphicBuffer::lockAsync(uint32_t inUsage, const Rect& rect, void** vaddr, int fenceFd, |
| int32_t* outBytesPerPixel, int32_t* outBytesPerStride) { |
| return lockAsync(inUsage, inUsage, rect, vaddr, fenceFd, outBytesPerPixel, outBytesPerStride); |
| } |
| |
| status_t GraphicBuffer::lockAsync(uint64_t inProducerUsage, uint64_t inConsumerUsage, |
| const Rect& rect, void** vaddr, int fenceFd, |
| int32_t* outBytesPerPixel, int32_t* outBytesPerStride) { |
| if (rect.left < 0 || rect.right > width || |
| rect.top < 0 || rect.bottom > height) { |
| ALOGE("locking pixels (%d,%d,%d,%d) outside of buffer (w=%d, h=%d)", |
| rect.left, rect.top, rect.right, rect.bottom, |
| width, height); |
| return BAD_VALUE; |
| } |
| |
| status_t res = getBufferMapper().lockAsync(handle, inProducerUsage, inConsumerUsage, rect, |
| vaddr, fenceFd, outBytesPerPixel, outBytesPerStride); |
| |
| return res; |
| } |
| |
| status_t GraphicBuffer::lockAsyncYCbCr(uint32_t inUsage, android_ycbcr* ycbcr, |
| int fenceFd) |
| { |
| const Rect lockBounds(width, height); |
| status_t res = lockAsyncYCbCr(inUsage, lockBounds, ycbcr, fenceFd); |
| return res; |
| } |
| |
| status_t GraphicBuffer::lockAsyncYCbCr(uint32_t inUsage, const Rect& rect, |
| android_ycbcr* ycbcr, int fenceFd) |
| { |
| if (rect.left < 0 || rect.right > width || |
| rect.top < 0 || rect.bottom > height) { |
| ALOGE("locking pixels (%d,%d,%d,%d) outside of buffer (w=%d, h=%d)", |
| rect.left, rect.top, rect.right, rect.bottom, |
| width, height); |
| return BAD_VALUE; |
| } |
| status_t res = getBufferMapper().lockAsyncYCbCr(handle, inUsage, rect, ycbcr, fenceFd); |
| return res; |
| } |
| |
| status_t GraphicBuffer::unlockAsync(int *fenceFd) |
| { |
| status_t res = getBufferMapper().unlockAsync(handle, fenceFd); |
| return res; |
| } |
| |
| status_t GraphicBuffer::isSupported(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat, |
| uint32_t inLayerCount, uint64_t inUsage, |
| bool* outSupported) const { |
| return mBufferMapper.isSupported(inWidth, inHeight, inFormat, inLayerCount, inUsage, |
| outSupported); |
| } |
| |
| size_t GraphicBuffer::getFlattenedSize() const { |
| #ifndef LIBUI_IN_VNDK |
| if (mBufferHubBuffer != nullptr) { |
| return 48; |
| } |
| #endif |
| return static_cast<size_t>(13 + (handle ? mTransportNumInts : 0)) * sizeof(int); |
| } |
| |
| size_t GraphicBuffer::getFdCount() const { |
| #ifndef LIBUI_IN_VNDK |
| if (mBufferHubBuffer != nullptr) { |
| return 0; |
| } |
| #endif |
| return static_cast<size_t>(handle ? mTransportNumFds : 0); |
| } |
| |
| status_t GraphicBuffer::flatten(void*& buffer, size_t& size, int*& fds, size_t& count) const { |
| #ifndef LIBUI_IN_VNDK |
| if (mBufferHubBuffer != nullptr) { |
| return flattenBufferHubBuffer(buffer, size); |
| } |
| #endif |
| size_t sizeNeeded = GraphicBuffer::getFlattenedSize(); |
| if (size < sizeNeeded) return NO_MEMORY; |
| |
| size_t fdCountNeeded = GraphicBuffer::getFdCount(); |
| if (count < fdCountNeeded) return NO_MEMORY; |
| |
| int32_t* buf = static_cast<int32_t*>(buffer); |
| buf[0] = 'GB01'; |
| buf[1] = width; |
| buf[2] = height; |
| buf[3] = stride; |
| buf[4] = format; |
| buf[5] = static_cast<int32_t>(layerCount); |
| buf[6] = int(usage); // low 32-bits |
| buf[7] = static_cast<int32_t>(mId >> 32); |
| buf[8] = static_cast<int32_t>(mId & 0xFFFFFFFFull); |
| buf[9] = static_cast<int32_t>(mGenerationNumber); |
| buf[10] = 0; |
| buf[11] = 0; |
| buf[12] = int(usage >> 32); // high 32-bits |
| |
| if (handle) { |
| buf[10] = int32_t(mTransportNumFds); |
| buf[11] = int32_t(mTransportNumInts); |
| memcpy(fds, handle->data, static_cast<size_t>(mTransportNumFds) * sizeof(int)); |
| memcpy(buf + 13, handle->data + handle->numFds, |
| static_cast<size_t>(mTransportNumInts) * sizeof(int)); |
| } |
| |
| buffer = static_cast<void*>(static_cast<uint8_t*>(buffer) + sizeNeeded); |
| size -= sizeNeeded; |
| if (handle) { |
| fds += mTransportNumFds; |
| count -= static_cast<size_t>(mTransportNumFds); |
| } |
| return NO_ERROR; |
| } |
| |
| status_t GraphicBuffer::unflatten(void const*& buffer, size_t& size, int const*& fds, |
| size_t& count) { |
| // Check if size is not smaller than buf[0] is supposed to take. |
| if (size < sizeof(int)) { |
| return NO_MEMORY; |
| } |
| |
| int const* buf = static_cast<int const*>(buffer); |
| |
| // NOTE: it turns out that some media code generates a flattened GraphicBuffer manually!!!!! |
| // see H2BGraphicBufferProducer.cpp |
| uint32_t flattenWordCount = 0; |
| if (buf[0] == 'GB01') { |
| // new version with 64-bits usage bits |
| flattenWordCount = 13; |
| } else if (buf[0] == 'GBFR') { |
| // old version, when usage bits were 32-bits |
| flattenWordCount = 12; |
| } else if (buf[0] == 'BHBB') { // BufferHub backed buffer. |
| #ifndef LIBUI_IN_VNDK |
| return unflattenBufferHubBuffer(buffer, size); |
| #else |
| return BAD_TYPE; |
| #endif |
| } else { |
| return BAD_TYPE; |
| } |
| |
| if (size < 12 * sizeof(int)) { |
| android_errorWriteLog(0x534e4554, "114223584"); |
| return NO_MEMORY; |
| } |
| |
| const size_t numFds = static_cast<size_t>(buf[10]); |
| const size_t numInts = static_cast<size_t>(buf[11]); |
| |
| // Limit the maxNumber to be relatively small. The number of fds or ints |
| // should not come close to this number, and the number itself was simply |
| // chosen to be high enough to not cause issues and low enough to prevent |
| // overflow problems. |
| const size_t maxNumber = 4096; |
| if (numFds >= maxNumber || numInts >= (maxNumber - flattenWordCount)) { |
| width = height = stride = format = usage_deprecated = 0; |
| layerCount = 0; |
| usage = 0; |
| handle = nullptr; |
| ALOGE("unflatten: numFds or numInts is too large: %zd, %zd", numFds, numInts); |
| return BAD_VALUE; |
| } |
| |
| const size_t sizeNeeded = (flattenWordCount + numInts) * sizeof(int); |
| if (size < sizeNeeded) return NO_MEMORY; |
| |
| size_t fdCountNeeded = numFds; |
| if (count < fdCountNeeded) return NO_MEMORY; |
| |
| if (handle) { |
| // free previous handle if any |
| free_handle(); |
| } |
| |
| if (numFds || numInts) { |
| width = buf[1]; |
| height = buf[2]; |
| stride = buf[3]; |
| format = buf[4]; |
| layerCount = static_cast<uintptr_t>(buf[5]); |
| usage_deprecated = buf[6]; |
| if (flattenWordCount == 13) { |
| usage = (uint64_t(buf[12]) << 32) | uint32_t(buf[6]); |
| } else { |
| usage = uint64_t(usage_deprecated); |
| } |
| native_handle* h = |
| native_handle_create(static_cast<int>(numFds), static_cast<int>(numInts)); |
| if (!h) { |
| width = height = stride = format = usage_deprecated = 0; |
| layerCount = 0; |
| usage = 0; |
| handle = nullptr; |
| ALOGE("unflatten: native_handle_create failed"); |
| return NO_MEMORY; |
| } |
| memcpy(h->data, fds, numFds * sizeof(int)); |
| memcpy(h->data + numFds, buf + flattenWordCount, numInts * sizeof(int)); |
| handle = h; |
| } else { |
| width = height = stride = format = usage_deprecated = 0; |
| layerCount = 0; |
| usage = 0; |
| handle = nullptr; |
| } |
| |
| mId = static_cast<uint64_t>(buf[7]) << 32; |
| mId |= static_cast<uint32_t>(buf[8]); |
| |
| mGenerationNumber = static_cast<uint32_t>(buf[9]); |
| |
| mOwner = ownHandle; |
| |
| if (handle != nullptr) { |
| buffer_handle_t importedHandle; |
| status_t err = mBufferMapper.importBuffer(handle, uint32_t(width), uint32_t(height), |
| uint32_t(layerCount), format, usage, uint32_t(stride), &importedHandle); |
| if (err != NO_ERROR) { |
| width = height = stride = format = usage_deprecated = 0; |
| layerCount = 0; |
| usage = 0; |
| handle = nullptr; |
| ALOGE("unflatten: registerBuffer failed: %s (%d)", strerror(-err), err); |
| return err; |
| } |
| |
| native_handle_close(handle); |
| native_handle_delete(const_cast<native_handle_t*>(handle)); |
| handle = importedHandle; |
| mBufferMapper.getTransportSize(handle, &mTransportNumFds, &mTransportNumInts); |
| } |
| |
| buffer = static_cast<void const*>(static_cast<uint8_t const*>(buffer) + sizeNeeded); |
| size -= sizeNeeded; |
| fds += numFds; |
| count -= numFds; |
| return NO_ERROR; |
| } |
| |
| void GraphicBuffer::addDeathCallback(GraphicBufferDeathCallback deathCallback, void* context) { |
| mDeathCallbacks.emplace_back(deathCallback, context); |
| } |
| |
| #ifndef LIBUI_IN_VNDK |
| status_t GraphicBuffer::flattenBufferHubBuffer(void*& buffer, size_t& size) const { |
| sp<NativeHandle> tokenHandle = mBufferHubBuffer->duplicate(); |
| if (tokenHandle == nullptr || tokenHandle->handle() == nullptr || |
| tokenHandle->handle()->numFds != 0) { |
| return BAD_VALUE; |
| } |
| |
| // Size needed for one label, one number of ints inside the token, one generation number and |
| // the token itself. |
| int numIntsInToken = tokenHandle->handle()->numInts; |
| const size_t sizeNeeded = static_cast<size_t>(3 + numIntsInToken) * sizeof(int); |
| if (size < sizeNeeded) { |
| ALOGE("%s: needed size %d, given size %d. Not enough memory.", __FUNCTION__, |
| static_cast<int>(sizeNeeded), static_cast<int>(size)); |
| return NO_MEMORY; |
| } |
| size -= sizeNeeded; |
| |
| int* buf = static_cast<int*>(buffer); |
| buf[0] = 'BHBB'; |
| buf[1] = numIntsInToken; |
| memcpy(buf + 2, tokenHandle->handle()->data, static_cast<size_t>(numIntsInToken) * sizeof(int)); |
| buf[2 + numIntsInToken] = static_cast<int32_t>(mGenerationNumber); |
| |
| return NO_ERROR; |
| } |
| |
| status_t GraphicBuffer::unflattenBufferHubBuffer(void const*& buffer, size_t& size) { |
| const int* buf = static_cast<const int*>(buffer); |
| int numIntsInToken = buf[1]; |
| // Size needed for one label, one number of ints inside the token, one generation number and |
| // the token itself. |
| const size_t sizeNeeded = static_cast<size_t>(3 + numIntsInToken) * sizeof(int); |
| if (size < sizeNeeded) { |
| ALOGE("%s: needed size %d, given size %d. Not enough memory.", __FUNCTION__, |
| static_cast<int>(sizeNeeded), static_cast<int>(size)); |
| return NO_MEMORY; |
| } |
| size -= sizeNeeded; |
| native_handle_t* importToken = native_handle_create(/*numFds=*/0, /*numInts=*/numIntsInToken); |
| memcpy(importToken->data, buf + 2, static_cast<size_t>(buf[1]) * sizeof(int)); |
| sp<NativeHandle> importTokenHandle = NativeHandle::create(importToken, /*ownHandle=*/true); |
| std::unique_ptr<BufferHubBuffer> bufferHubBuffer = BufferHubBuffer::import(importTokenHandle); |
| if (bufferHubBuffer == nullptr || bufferHubBuffer.get() == nullptr) { |
| return BAD_VALUE; |
| } |
| // Reconstruct this GraphicBuffer object using the new BufferHubBuffer object. |
| if (handle) { |
| free_handle(); |
| } |
| mId = 0; |
| mGenerationNumber = static_cast<uint32_t>(buf[2 + numIntsInToken]); |
| mInitCheck = |
| initWithHandle(bufferHubBuffer->duplicateHandle(), /*method=*/TAKE_UNREGISTERED_HANDLE, |
| bufferHubBuffer->desc().width, bufferHubBuffer->desc().height, |
| static_cast<PixelFormat>(bufferHubBuffer->desc().format), |
| bufferHubBuffer->desc().layers, bufferHubBuffer->desc().usage, |
| bufferHubBuffer->desc().stride); |
| mBufferId = bufferHubBuffer->id(); |
| mBufferHubBuffer = std::move(bufferHubBuffer); |
| |
| return NO_ERROR; |
| } |
| |
| bool GraphicBuffer::isBufferHubBuffer() const { |
| return mBufferHubBuffer != nullptr; |
| } |
| #endif // LIBUI_IN_VNDK |
| |
| // --------------------------------------------------------------------------- |
| |
| }; // namespace android |