| /* |
| * 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. |
| */ |
| |
| #pragma once |
| |
| #ifndef LOG_TAG |
| #warning "Gralloc1Hal.h included without LOG_TAG" |
| #endif |
| |
| #include <inttypes.h> |
| |
| #include <vector> |
| |
| #include <hardware/gralloc1.h> |
| #include <log/log.h> |
| #include <mapper-hal/2.0/MapperHal.h> |
| #include <mapper-passthrough/2.0/GrallocBufferDescriptor.h> |
| |
| namespace android { |
| namespace hardware { |
| namespace graphics { |
| namespace mapper { |
| namespace V2_0 { |
| namespace passthrough { |
| |
| namespace detail { |
| |
| using common::V1_0::BufferUsage; |
| |
| // Gralloc1HalImpl implements V2_*::hal::MapperHal on top of gralloc1 |
| template <typename Hal> |
| class Gralloc1HalImpl : public Hal { |
| public: |
| ~Gralloc1HalImpl() { |
| if (mDevice) { |
| gralloc1_close(mDevice); |
| } |
| } |
| |
| bool initWithModule(const hw_module_t* module) { |
| int result = gralloc1_open(module, &mDevice); |
| if (result) { |
| ALOGE("failed to open gralloc1 device: %s", strerror(-result)); |
| mDevice = nullptr; |
| return false; |
| } |
| |
| initCapabilities(); |
| |
| if (!initDispatch()) { |
| gralloc1_close(mDevice); |
| mDevice = nullptr; |
| return false; |
| } |
| |
| return true; |
| } |
| |
| Error createDescriptor(const IMapper::BufferDescriptorInfo& descriptorInfo, |
| BufferDescriptor* outDescriptor) override { |
| if (!descriptorInfo.width || !descriptorInfo.height || !descriptorInfo.layerCount) { |
| return Error::BAD_VALUE; |
| } |
| |
| if (!mCapabilities.layeredBuffers && descriptorInfo.layerCount != 1) { |
| return Error::UNSUPPORTED; |
| } |
| |
| if (descriptorInfo.format == static_cast<PixelFormat>(0)) { |
| return Error::BAD_VALUE; |
| } |
| |
| const uint64_t validUsageBits = getValidBufferUsageMask(); |
| if (descriptorInfo.usage & ~validUsageBits) { |
| ALOGW("buffer descriptor with invalid usage bits 0x%" PRIx64, |
| descriptorInfo.usage & ~validUsageBits); |
| } |
| |
| *outDescriptor = grallocEncodeBufferDescriptor(descriptorInfo); |
| |
| return Error::NONE; |
| } |
| |
| Error importBuffer(const native_handle_t* rawHandle, |
| native_handle_t** outBufferHandle) override { |
| native_handle_t* bufferHandle = native_handle_clone(rawHandle); |
| if (!bufferHandle) { |
| return Error::NO_RESOURCES; |
| } |
| |
| int32_t error = mDispatch.retain(mDevice, bufferHandle); |
| if (error != GRALLOC1_ERROR_NONE) { |
| native_handle_close(bufferHandle); |
| native_handle_delete(bufferHandle); |
| return toError(error); |
| } |
| |
| *outBufferHandle = bufferHandle; |
| |
| return Error::NONE; |
| } |
| |
| Error freeBuffer(native_handle_t* bufferHandle) override { |
| int32_t error = mDispatch.release(mDevice, bufferHandle); |
| if (error == GRALLOC1_ERROR_NONE && !mCapabilities.releaseImplyDelete) { |
| native_handle_close(bufferHandle); |
| native_handle_delete(bufferHandle); |
| } |
| return toError(error); |
| } |
| |
| Error lock(const native_handle_t* bufferHandle, uint64_t cpuUsage, |
| const IMapper::Rect& accessRegion, base::unique_fd fenceFd, |
| void** outData) override { |
| const uint64_t consumerUsage = |
| cpuUsage & ~static_cast<uint64_t>(BufferUsage::CPU_WRITE_MASK); |
| const auto accessRect = asGralloc1Rect(accessRegion); |
| void* data = nullptr; |
| int32_t error = mDispatch.lock(mDevice, bufferHandle, cpuUsage, consumerUsage, &accessRect, |
| &data, fenceFd.release()); |
| if (error == GRALLOC1_ERROR_NONE) { |
| *outData = data; |
| } |
| |
| return toError(error); |
| } |
| |
| Error lockYCbCr(const native_handle_t* bufferHandle, uint64_t cpuUsage, |
| const IMapper::Rect& accessRegion, base::unique_fd fenceFd, |
| YCbCrLayout* outLayout) override { |
| // prepare flex layout |
| android_flex_layout flex = {}; |
| int32_t error = mDispatch.getNumFlexPlanes(mDevice, bufferHandle, &flex.num_planes); |
| if (error != GRALLOC1_ERROR_NONE) { |
| return toError(error); |
| } |
| std::vector<android_flex_plane_t> flexPlanes(flex.num_planes); |
| flex.planes = flexPlanes.data(); |
| |
| const uint64_t consumerUsage = |
| cpuUsage & ~static_cast<uint64_t>(BufferUsage::CPU_WRITE_MASK); |
| const auto accessRect = asGralloc1Rect(accessRegion); |
| error = mDispatch.lockFlex(mDevice, bufferHandle, cpuUsage, consumerUsage, &accessRect, |
| &flex, fenceFd.release()); |
| if (error == GRALLOC1_ERROR_NONE && !toYCbCrLayout(flex, outLayout)) { |
| ALOGD("unable to convert android_flex_layout to YCbCrLayout"); |
| // undo the lock |
| unlock(bufferHandle, &fenceFd); |
| error = GRALLOC1_ERROR_BAD_HANDLE; |
| } |
| |
| return toError(error); |
| } |
| |
| Error unlock(const native_handle_t* bufferHandle, base::unique_fd* outFenceFd) override { |
| int fenceFd = -1; |
| int32_t error = mDispatch.unlock(mDevice, bufferHandle, &fenceFd); |
| |
| // we always own the fenceFd even when unlock failed |
| outFenceFd->reset(fenceFd); |
| return toError(error); |
| } |
| |
| protected: |
| virtual void initCapabilities() { |
| uint32_t count = 0; |
| mDevice->getCapabilities(mDevice, &count, nullptr); |
| |
| std::vector<int32_t> capabilities(count); |
| mDevice->getCapabilities(mDevice, &count, capabilities.data()); |
| capabilities.resize(count); |
| |
| for (auto capability : capabilities) { |
| switch (capability) { |
| case GRALLOC1_CAPABILITY_LAYERED_BUFFERS: |
| mCapabilities.layeredBuffers = true; |
| break; |
| case GRALLOC1_CAPABILITY_RELEASE_IMPLY_DELETE: |
| mCapabilities.releaseImplyDelete = true; |
| break; |
| } |
| } |
| } |
| |
| template <typename T> |
| bool initDispatch(gralloc1_function_descriptor_t desc, T* outPfn) { |
| auto pfn = mDevice->getFunction(mDevice, desc); |
| if (pfn) { |
| *outPfn = reinterpret_cast<T>(pfn); |
| return true; |
| } else { |
| ALOGE("failed to get gralloc1 function %d", desc); |
| return false; |
| } |
| } |
| |
| virtual bool initDispatch() { |
| if (!initDispatch(GRALLOC1_FUNCTION_RETAIN, &mDispatch.retain) || |
| !initDispatch(GRALLOC1_FUNCTION_RELEASE, &mDispatch.release) || |
| !initDispatch(GRALLOC1_FUNCTION_GET_NUM_FLEX_PLANES, &mDispatch.getNumFlexPlanes) || |
| !initDispatch(GRALLOC1_FUNCTION_LOCK, &mDispatch.lock) || |
| !initDispatch(GRALLOC1_FUNCTION_LOCK_FLEX, &mDispatch.lockFlex) || |
| !initDispatch(GRALLOC1_FUNCTION_UNLOCK, &mDispatch.unlock)) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| virtual uint64_t getValidBufferUsageMask() const { |
| return BufferUsage::CPU_READ_MASK | BufferUsage::CPU_WRITE_MASK | BufferUsage::GPU_TEXTURE | |
| BufferUsage::GPU_RENDER_TARGET | BufferUsage::COMPOSER_OVERLAY | |
| BufferUsage::COMPOSER_CLIENT_TARGET | BufferUsage::PROTECTED | |
| BufferUsage::COMPOSER_CURSOR | BufferUsage::VIDEO_ENCODER | |
| BufferUsage::CAMERA_OUTPUT | BufferUsage::CAMERA_INPUT | BufferUsage::RENDERSCRIPT | |
| BufferUsage::VIDEO_DECODER | BufferUsage::SENSOR_DIRECT_DATA | |
| BufferUsage::GPU_DATA_BUFFER | BufferUsage::VENDOR_MASK | |
| BufferUsage::VENDOR_MASK_HI; |
| } |
| |
| static Error toError(int32_t error) { |
| switch (error) { |
| case GRALLOC1_ERROR_NONE: |
| return Error::NONE; |
| case GRALLOC1_ERROR_BAD_DESCRIPTOR: |
| return Error::BAD_DESCRIPTOR; |
| case GRALLOC1_ERROR_BAD_HANDLE: |
| return Error::BAD_BUFFER; |
| case GRALLOC1_ERROR_BAD_VALUE: |
| return Error::BAD_VALUE; |
| case GRALLOC1_ERROR_NOT_SHARED: |
| return Error::NONE; // this is fine |
| case GRALLOC1_ERROR_NO_RESOURCES: |
| return Error::NO_RESOURCES; |
| case GRALLOC1_ERROR_UNDEFINED: |
| case GRALLOC1_ERROR_UNSUPPORTED: |
| default: |
| return Error::UNSUPPORTED; |
| } |
| } |
| |
| static bool toYCbCrLayout(const android_flex_layout& flex, YCbCrLayout* outLayout) { |
| // must be YCbCr |
| if (flex.format != FLEX_FORMAT_YCbCr || flex.num_planes < 3) { |
| return false; |
| } |
| |
| for (int i = 0; i < 3; i++) { |
| const auto& plane = flex.planes[i]; |
| // must have 8-bit depth |
| if (plane.bits_per_component != 8 || plane.bits_used != 8) { |
| return false; |
| } |
| |
| if (plane.component == FLEX_COMPONENT_Y) { |
| // Y must not be interleaved |
| if (plane.h_increment != 1) { |
| return false; |
| } |
| } else { |
| // Cb and Cr can be interleaved |
| if (plane.h_increment != 1 && plane.h_increment != 2) { |
| return false; |
| } |
| } |
| |
| if (!plane.v_increment) { |
| return false; |
| } |
| } |
| |
| if (flex.planes[0].component != FLEX_COMPONENT_Y || |
| ((flex.planes[1].component != FLEX_COMPONENT_Cb || flex.planes[2].component != FLEX_COMPONENT_Cr) && |
| (flex.planes[2].component != FLEX_COMPONENT_Cb || flex.planes[1].component != FLEX_COMPONENT_Cr))) { |
| return false; |
| } |
| |
| const auto& y = flex.planes[0]; |
| const auto& cb = (flex.planes[1].component == FLEX_COMPONENT_Cb)? |
| flex.planes[1] : flex.planes[2]; |
| const auto& cr = (flex.planes[2].component == FLEX_COMPONENT_Cr)? |
| flex.planes[2] : flex.planes[1]; |
| |
| if (cb.h_increment != cr.h_increment || cb.v_increment != cr.v_increment) { |
| return false; |
| } |
| |
| outLayout->y = y.top_left; |
| outLayout->cb = cb.top_left; |
| outLayout->cr = cr.top_left; |
| outLayout->yStride = y.v_increment; |
| outLayout->cStride = cb.v_increment; |
| outLayout->chromaStep = cb.h_increment; |
| |
| return true; |
| } |
| |
| static gralloc1_rect_t asGralloc1Rect(const IMapper::Rect& rect) { |
| return gralloc1_rect_t{rect.left, rect.top, rect.width, rect.height}; |
| } |
| |
| gralloc1_device_t* mDevice = nullptr; |
| |
| struct { |
| bool layeredBuffers; |
| bool releaseImplyDelete; |
| } mCapabilities = {}; |
| |
| struct { |
| GRALLOC1_PFN_RETAIN retain; |
| GRALLOC1_PFN_RELEASE release; |
| GRALLOC1_PFN_GET_NUM_FLEX_PLANES getNumFlexPlanes; |
| GRALLOC1_PFN_LOCK lock; |
| GRALLOC1_PFN_LOCK_FLEX lockFlex; |
| GRALLOC1_PFN_UNLOCK unlock; |
| } mDispatch = {}; |
| }; |
| |
| } // namespace detail |
| |
| using Gralloc1Hal = detail::Gralloc1HalImpl<hal::MapperHal>; |
| |
| } // namespace passthrough |
| } // namespace V2_0 |
| } // namespace mapper |
| } // namespace graphics |
| } // namespace hardware |
| } // namespace android |