| /* |
| * 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. |
| */ |
| |
| #include <grallocusage/GrallocUsageConversion.h> |
| |
| #include <android/hardware/graphics/allocator/2.0/types.h> |
| #include <hardware/gralloc.h> |
| |
| using android::hardware::graphics::allocator::V2_0::ProducerUsage; |
| using android::hardware::graphics::allocator::V2_0::ConsumerUsage; |
| |
| void android_convertGralloc0To1Usage(int32_t usage, uint64_t* producerUsage, |
| uint64_t* consumerUsage) { |
| constexpr uint64_t PRODUCER_MASK = ProducerUsage::CPU_READ | |
| /* ProducerUsage::CPU_READ_OFTEN | */ |
| ProducerUsage::CPU_WRITE | |
| /* ProducerUsage::CPU_WRITE_OFTEN | */ |
| ProducerUsage::GPU_RENDER_TARGET | ProducerUsage::PROTECTED | |
| ProducerUsage::CAMERA | ProducerUsage::VIDEO_DECODER | |
| ProducerUsage::SENSOR_DIRECT_DATA; |
| constexpr uint64_t CONSUMER_MASK = ConsumerUsage::CPU_READ | |
| /* ConsumerUsage::CPU_READ_OFTEN | */ |
| ConsumerUsage::GPU_TEXTURE | ConsumerUsage::HWCOMPOSER | |
| ConsumerUsage::CLIENT_TARGET | ConsumerUsage::CURSOR | |
| ConsumerUsage::VIDEO_ENCODER | ConsumerUsage::CAMERA | |
| ConsumerUsage::RENDERSCRIPT | ConsumerUsage::GPU_DATA_BUFFER; |
| *producerUsage = static_cast<uint64_t>(usage) & PRODUCER_MASK; |
| *consumerUsage = static_cast<uint64_t>(usage) & CONSUMER_MASK; |
| if ((static_cast<uint32_t>(usage) & GRALLOC_USAGE_SW_READ_OFTEN) == GRALLOC_USAGE_SW_READ_OFTEN) { |
| *producerUsage |= ProducerUsage::CPU_READ_OFTEN; |
| *consumerUsage |= ConsumerUsage::CPU_READ_OFTEN; |
| } |
| if ((static_cast<uint32_t>(usage) & GRALLOC_USAGE_SW_WRITE_OFTEN) == |
| GRALLOC_USAGE_SW_WRITE_OFTEN) { |
| *producerUsage |= ProducerUsage::CPU_WRITE_OFTEN; |
| } |
| } |
| |
| int32_t android_convertGralloc1To0Usage(uint64_t producerUsage, uint64_t consumerUsage) { |
| static_assert(uint64_t(ConsumerUsage::CPU_READ_OFTEN) == uint64_t(ProducerUsage::CPU_READ_OFTEN), |
| "expected ConsumerUsage and ProducerUsage CPU_READ_OFTEN bits to match"); |
| uint64_t merged = producerUsage | consumerUsage; |
| if ((merged & (ConsumerUsage::CPU_READ_OFTEN)) != 0) { |
| merged &= ~uint64_t(ConsumerUsage::CPU_READ_OFTEN); |
| merged |= GRALLOC_USAGE_SW_READ_OFTEN; |
| } |
| if ((merged & (ProducerUsage::CPU_WRITE_OFTEN)) != 0) { |
| merged &= ~uint64_t(ProducerUsage::CPU_WRITE_OFTEN); |
| merged |= GRALLOC_USAGE_SW_WRITE_OFTEN; |
| } |
| return static_cast<int32_t>(merged); |
| } |