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Diffstat (limited to 'libs/ui/Gralloc3.cpp')
| -rw-r--r-- | libs/ui/Gralloc3.cpp | 371 |
1 files changed, 371 insertions, 0 deletions
diff --git a/libs/ui/Gralloc3.cpp b/libs/ui/Gralloc3.cpp new file mode 100644 index 0000000000..128200e33e --- /dev/null +++ b/libs/ui/Gralloc3.cpp @@ -0,0 +1,371 @@ +/* + * 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. + */ + +#define LOG_TAG "Gralloc3" + +#include <hidl/ServiceManagement.h> +#include <hwbinder/IPCThreadState.h> +#include <ui/Gralloc3.h> + +#include <inttypes.h> +#include <log/log.h> +#pragma clang diagnostic push +#pragma clang diagnostic ignored "-Wzero-length-array" +#include <sync/sync.h> +#pragma clang diagnostic pop + +using android::hardware::graphics::allocator::V3_0::IAllocator; +using android::hardware::graphics::common::V1_1::BufferUsage; +using android::hardware::graphics::mapper::V3_0::BufferDescriptor; +using android::hardware::graphics::mapper::V3_0::Error; +using android::hardware::graphics::mapper::V3_0::IMapper; +using android::hardware::graphics::mapper::V3_0::YCbCrLayout; + +namespace android { + +namespace { + +static constexpr Error kTransactionError = Error::NO_RESOURCES; + +uint64_t getValidUsageBits() { + static const uint64_t validUsageBits = []() -> uint64_t { + uint64_t bits = 0; + for (const auto bit : + hardware::hidl_enum_range<hardware::graphics::common::V1_0::BufferUsage>()) { + bits = bits | bit; + } + for (const auto bit : + hardware::hidl_enum_range<hardware::graphics::common::V1_1::BufferUsage>()) { + bits = bits | bit; + } + return bits; + }(); + return validUsageBits; +} + +static inline IMapper::Rect sGralloc3Rect(const Rect& rect) { + IMapper::Rect outRect{}; + outRect.left = rect.left; + outRect.top = rect.top; + outRect.width = rect.width(); + outRect.height = rect.height(); + return outRect; +} +static inline void sBufferDescriptorInfo(uint32_t width, uint32_t height, + android::PixelFormat format, uint32_t layerCount, + uint64_t usage, + IMapper::BufferDescriptorInfo* outDescriptorInfo) { + outDescriptorInfo->width = width; + outDescriptorInfo->height = height; + outDescriptorInfo->layerCount = layerCount; + outDescriptorInfo->format = static_cast<hardware::graphics::common::V1_1::PixelFormat>(format); + outDescriptorInfo->usage = usage; +} + +} // anonymous namespace + +void Gralloc3Mapper::preload() { + android::hardware::preloadPassthroughService<IMapper>(); +} + +Gralloc3Mapper::Gralloc3Mapper() { + mMapper = IMapper::getService(); + if (mMapper == nullptr) { + ALOGW("mapper 3.x is not supported"); + return; + } + if (mMapper->isRemote()) { + LOG_ALWAYS_FATAL("gralloc-mapper must be in passthrough mode"); + } +} + +bool Gralloc3Mapper::isSupported() const { + return mMapper != nullptr; +} + +status_t Gralloc3Mapper::validateBufferDescriptorInfo( + IMapper::BufferDescriptorInfo* descriptorInfo) const { + uint64_t validUsageBits = getValidUsageBits(); + + if (descriptorInfo->usage & ~validUsageBits) { + ALOGE("buffer descriptor contains invalid usage bits 0x%" PRIx64, + descriptorInfo->usage & ~validUsageBits); + return BAD_VALUE; + } + return NO_ERROR; +} + +status_t Gralloc3Mapper::createDescriptor(void* bufferDescriptorInfo, + void* outBufferDescriptor) const { + IMapper::BufferDescriptorInfo* descriptorInfo = + static_cast<IMapper::BufferDescriptorInfo*>(bufferDescriptorInfo); + BufferDescriptor* outDescriptor = static_cast<BufferDescriptor*>(outBufferDescriptor); + + status_t status = validateBufferDescriptorInfo(descriptorInfo); + if (status != NO_ERROR) { + return status; + } + + Error error; + auto hidl_cb = [&](const auto& tmpError, const auto& tmpDescriptor) { + error = tmpError; + if (error != Error::NONE) { + return; + } + *outDescriptor = tmpDescriptor; + }; + + hardware::Return<void> ret = mMapper->createDescriptor(*descriptorInfo, hidl_cb); + + return static_cast<status_t>((ret.isOk()) ? error : kTransactionError); +} + +status_t Gralloc3Mapper::importBuffer(const hardware::hidl_handle& rawHandle, + buffer_handle_t* outBufferHandle) const { + Error error; + auto ret = mMapper->importBuffer(rawHandle, [&](const auto& tmpError, const auto& tmpBuffer) { + error = tmpError; + if (error != Error::NONE) { + return; + } + *outBufferHandle = static_cast<buffer_handle_t>(tmpBuffer); + }); + + return static_cast<status_t>((ret.isOk()) ? error : kTransactionError); +} + +void Gralloc3Mapper::freeBuffer(buffer_handle_t bufferHandle) const { + auto buffer = const_cast<native_handle_t*>(bufferHandle); + auto ret = mMapper->freeBuffer(buffer); + + auto error = (ret.isOk()) ? static_cast<Error>(ret) : kTransactionError; + ALOGE_IF(error != Error::NONE, "freeBuffer(%p) failed with %d", buffer, error); +} + +status_t Gralloc3Mapper::validateBufferSize(buffer_handle_t bufferHandle, uint32_t width, + uint32_t height, android::PixelFormat format, + uint32_t layerCount, uint64_t usage, + uint32_t stride) const { + IMapper::BufferDescriptorInfo descriptorInfo; + sBufferDescriptorInfo(width, height, format, layerCount, usage, &descriptorInfo); + + auto buffer = const_cast<native_handle_t*>(bufferHandle); + auto ret = mMapper->validateBufferSize(buffer, descriptorInfo, stride); + + return static_cast<status_t>((ret.isOk()) ? static_cast<Error>(ret) : kTransactionError); +} + +void Gralloc3Mapper::getTransportSize(buffer_handle_t bufferHandle, uint32_t* outNumFds, + uint32_t* outNumInts) const { + *outNumFds = uint32_t(bufferHandle->numFds); + *outNumInts = uint32_t(bufferHandle->numInts); + + Error error; + auto buffer = const_cast<native_handle_t*>(bufferHandle); + auto ret = mMapper->getTransportSize(buffer, + [&](const auto& tmpError, const auto& tmpNumFds, + const auto& tmpNumInts) { + error = tmpError; + if (error != Error::NONE) { + return; + } + *outNumFds = tmpNumFds; + *outNumInts = tmpNumInts; + }); + + error = (ret.isOk()) ? error : kTransactionError; + + ALOGE_IF(error != Error::NONE, "getTransportSize(%p) failed with %d", buffer, error); +} + +status_t Gralloc3Mapper::lock(buffer_handle_t bufferHandle, uint64_t usage, const Rect& bounds, + int acquireFence, void** outData) const { + auto buffer = const_cast<native_handle_t*>(bufferHandle); + + IMapper::Rect accessRegion = sGralloc3Rect(bounds); + + // put acquireFence in a hidl_handle + hardware::hidl_handle acquireFenceHandle; + NATIVE_HANDLE_DECLARE_STORAGE(acquireFenceStorage, 1, 0); + if (acquireFence >= 0) { + auto h = native_handle_init(acquireFenceStorage, 1, 0); + h->data[0] = acquireFence; + acquireFenceHandle = h; + } + + Error error; + auto ret = mMapper->lock(buffer, usage, accessRegion, acquireFenceHandle, + [&](const auto& tmpError, const auto& tmpData) { + error = tmpError; + if (error != Error::NONE) { + return; + } + *outData = tmpData; + }); + + // we own acquireFence even on errors + if (acquireFence >= 0) { + close(acquireFence); + } + + error = (ret.isOk()) ? error : kTransactionError; + + ALOGW_IF(error != Error::NONE, "lock(%p, ...) failed: %d", bufferHandle, error); + + return static_cast<status_t>(error); +} + +status_t Gralloc3Mapper::lock(buffer_handle_t bufferHandle, uint64_t usage, const Rect& bounds, + int acquireFence, android_ycbcr* ycbcr) const { + auto buffer = const_cast<native_handle_t*>(bufferHandle); + + IMapper::Rect accessRegion = sGralloc3Rect(bounds); + + // put acquireFence in a hidl_handle + hardware::hidl_handle acquireFenceHandle; + NATIVE_HANDLE_DECLARE_STORAGE(acquireFenceStorage, 1, 0); + if (acquireFence >= 0) { + auto h = native_handle_init(acquireFenceStorage, 1, 0); + h->data[0] = acquireFence; + acquireFenceHandle = h; + } + + YCbCrLayout layout; + Error error; + auto ret = mMapper->lockYCbCr(buffer, usage, accessRegion, acquireFenceHandle, + [&](const auto& tmpError, const auto& tmpLayout) { + error = tmpError; + if (error != Error::NONE) { + return; + } + + layout = tmpLayout; + }); + + if (error == Error::NONE) { + ycbcr->y = layout.y; + ycbcr->cb = layout.cb; + ycbcr->cr = layout.cr; + ycbcr->ystride = static_cast<size_t>(layout.yStride); + ycbcr->cstride = static_cast<size_t>(layout.cStride); + ycbcr->chroma_step = static_cast<size_t>(layout.chromaStep); + } + + // we own acquireFence even on errors + if (acquireFence >= 0) { + close(acquireFence); + } + + return static_cast<status_t>((ret.isOk()) ? error : kTransactionError); +} + +int Gralloc3Mapper::unlock(buffer_handle_t bufferHandle) const { + auto buffer = const_cast<native_handle_t*>(bufferHandle); + + int releaseFence = -1; + Error error; + auto ret = mMapper->unlock(buffer, [&](const auto& tmpError, const auto& tmpReleaseFence) { + error = tmpError; + if (error != Error::NONE) { + return; + } + + auto fenceHandle = tmpReleaseFence.getNativeHandle(); + if (fenceHandle && fenceHandle->numFds == 1) { + int fd = dup(fenceHandle->data[0]); + if (fd >= 0) { + releaseFence = fd; + } else { + ALOGD("failed to dup unlock release fence"); + sync_wait(fenceHandle->data[0], -1); + } + } + }); + + if (!ret.isOk()) { + error = kTransactionError; + } + + if (error != Error::NONE) { + ALOGE("unlock(%p) failed with %d", buffer, error); + } + + return releaseFence; +} + +Gralloc3Allocator::Gralloc3Allocator(const Gralloc3Mapper& mapper) : mMapper(mapper) { + mAllocator = IAllocator::getService(); + if (mAllocator == nullptr) { + ALOGW("allocator 3.x is not supported"); + return; + } +} + +bool Gralloc3Allocator::isSupported() const { + return mAllocator != nullptr; +} + +std::string Gralloc3Allocator::dumpDebugInfo() const { + std::string debugInfo; + + mAllocator->dumpDebugInfo([&](const auto& tmpDebugInfo) { debugInfo = tmpDebugInfo.c_str(); }); + + return debugInfo; +} + +status_t Gralloc3Allocator::allocate(uint32_t width, uint32_t height, android::PixelFormat format, + uint32_t layerCount, uint64_t usage, uint32_t bufferCount, + uint32_t* outStride, buffer_handle_t* outBufferHandles) const { + IMapper::BufferDescriptorInfo descriptorInfo; + sBufferDescriptorInfo(width, height, format, layerCount, usage, &descriptorInfo); + + BufferDescriptor descriptor; + status_t error = mMapper.createDescriptor(static_cast<void*>(&descriptorInfo), + static_cast<void*>(&descriptor)); + if (error != NO_ERROR) { + return error; + } + + auto ret = mAllocator->allocate(descriptor, bufferCount, + [&](const auto& tmpError, const auto& tmpStride, + const auto& tmpBuffers) { + error = static_cast<status_t>(tmpError); + if (tmpError != Error::NONE) { + return; + } + + // import buffers + for (uint32_t i = 0; i < bufferCount; i++) { + error = mMapper.importBuffer(tmpBuffers[i], + &outBufferHandles[i]); + if (error != NO_ERROR) { + for (uint32_t j = 0; j < i; j++) { + mMapper.freeBuffer(outBufferHandles[j]); + outBufferHandles[j] = nullptr; + } + return; + } + } + *outStride = tmpStride; + }); + + // make sure the kernel driver sees BC_FREE_BUFFER and closes the fds now + hardware::IPCThreadState::self()->flushCommands(); + + return (ret.isOk()) ? error : static_cast<status_t>(kTransactionError); +} + +} // namespace android |