1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#define LOG_TAG "GraphicBufferMapper" 18#define ATRACE_TAG ATRACE_TAG_GRAPHICS 19//#define LOG_NDEBUG 0 20 21#include <ui/GraphicBufferMapper.h> 22 23#include <grallocusage/GrallocUsageConversion.h> 24 25// We would eliminate the non-conforming zero-length array, but we can't since 26// this is effectively included from the Linux kernel 27#pragma clang diagnostic push 28#pragma clang diagnostic ignored "-Wzero-length-array" 29#include <sync/sync.h> 30#pragma clang diagnostic pop 31 32#include <utils/Log.h> 33#include <utils/Trace.h> 34 35#include <ui/Gralloc2.h> 36#include <ui/GraphicBuffer.h> 37 38#include <system/graphics.h> 39 40namespace android { 41// --------------------------------------------------------------------------- 42 43ANDROID_SINGLETON_STATIC_INSTANCE( GraphicBufferMapper ) 44 45GraphicBufferMapper::GraphicBufferMapper() 46 : mMapper(std::make_unique<const Gralloc2::Mapper>()) 47{ 48} 49 50status_t GraphicBufferMapper::importBuffer(buffer_handle_t rawHandle, 51 buffer_handle_t* outHandle) 52{ 53 ATRACE_CALL(); 54 55 Gralloc2::Error error = mMapper->importBuffer( 56 hardware::hidl_handle(rawHandle), outHandle); 57 58 ALOGW_IF(error != Gralloc2::Error::NONE, "importBuffer(%p) failed: %d", 59 rawHandle, error); 60 61 return static_cast<status_t>(error); 62} 63 64status_t GraphicBufferMapper::freeBuffer(buffer_handle_t handle) 65{ 66 ATRACE_CALL(); 67 68 mMapper->freeBuffer(handle); 69 70 return NO_ERROR; 71} 72 73static inline Gralloc2::IMapper::Rect asGralloc2Rect(const Rect& rect) { 74 Gralloc2::IMapper::Rect outRect{}; 75 outRect.left = rect.left; 76 outRect.top = rect.top; 77 outRect.width = rect.width(); 78 outRect.height = rect.height(); 79 return outRect; 80} 81 82status_t GraphicBufferMapper::lock(buffer_handle_t handle, uint32_t usage, 83 const Rect& bounds, void** vaddr) 84{ 85 return lockAsync(handle, usage, bounds, vaddr, -1); 86} 87 88status_t GraphicBufferMapper::lockYCbCr(buffer_handle_t handle, uint32_t usage, 89 const Rect& bounds, android_ycbcr *ycbcr) 90{ 91 return lockAsyncYCbCr(handle, usage, bounds, ycbcr, -1); 92} 93 94status_t GraphicBufferMapper::unlock(buffer_handle_t handle) 95{ 96 int32_t fenceFd = -1; 97 status_t error = unlockAsync(handle, &fenceFd); 98 if (error == NO_ERROR) { 99 sync_wait(fenceFd, -1); 100 close(fenceFd); 101 } 102 return error; 103} 104 105status_t GraphicBufferMapper::lockAsync(buffer_handle_t handle, 106 uint32_t usage, const Rect& bounds, void** vaddr, int fenceFd) 107{ 108 return lockAsync(handle, usage, usage, bounds, vaddr, fenceFd); 109} 110 111status_t GraphicBufferMapper::lockAsync(buffer_handle_t handle, 112 uint64_t producerUsage, uint64_t consumerUsage, const Rect& bounds, 113 void** vaddr, int fenceFd) 114{ 115 ATRACE_CALL(); 116 117 const uint64_t usage = static_cast<uint64_t>( 118 android_convertGralloc1To0Usage(producerUsage, consumerUsage)); 119 Gralloc2::Error error = mMapper->lock(handle, usage, 120 asGralloc2Rect(bounds), fenceFd, vaddr); 121 122 ALOGW_IF(error != Gralloc2::Error::NONE, "lock(%p, ...) failed: %d", 123 handle, error); 124 125 return static_cast<status_t>(error); 126} 127 128static inline bool isValidYCbCrPlane(const android_flex_plane_t& plane) { 129 if (plane.bits_per_component != 8) { 130 ALOGV("Invalid number of bits per component: %d", 131 plane.bits_per_component); 132 return false; 133 } 134 if (plane.bits_used != 8) { 135 ALOGV("Invalid number of bits used: %d", plane.bits_used); 136 return false; 137 } 138 139 bool hasValidIncrement = plane.h_increment == 1 || 140 (plane.component != FLEX_COMPONENT_Y && plane.h_increment == 2); 141 hasValidIncrement = hasValidIncrement && plane.v_increment > 0; 142 if (!hasValidIncrement) { 143 ALOGV("Invalid increment: h %d v %d", plane.h_increment, 144 plane.v_increment); 145 return false; 146 } 147 148 return true; 149} 150 151status_t GraphicBufferMapper::lockAsyncYCbCr(buffer_handle_t handle, 152 uint32_t usage, const Rect& bounds, android_ycbcr *ycbcr, int fenceFd) 153{ 154 ATRACE_CALL(); 155 156 Gralloc2::YCbCrLayout layout; 157 Gralloc2::Error error = mMapper->lock(handle, usage, 158 asGralloc2Rect(bounds), fenceFd, &layout); 159 if (error == Gralloc2::Error::NONE) { 160 ycbcr->y = layout.y; 161 ycbcr->cb = layout.cb; 162 ycbcr->cr = layout.cr; 163 ycbcr->ystride = static_cast<size_t>(layout.yStride); 164 ycbcr->cstride = static_cast<size_t>(layout.cStride); 165 ycbcr->chroma_step = static_cast<size_t>(layout.chromaStep); 166 } 167 168 return static_cast<status_t>(error); 169} 170 171status_t GraphicBufferMapper::unlockAsync(buffer_handle_t handle, int *fenceFd) 172{ 173 ATRACE_CALL(); 174 175 *fenceFd = mMapper->unlock(handle); 176 177 return NO_ERROR; 178} 179 180// --------------------------------------------------------------------------- 181}; // namespace android 182