BufferItem.cpp revision 60d6922a011fe18c111b8d30fb6ef1f655b6b15e
1289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza/* 2289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza * Copyright 2014 The Android Open Source Project 3289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza * 4289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza * Licensed under the Apache License, Version 2.0 (the "License"); 5289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza * you may not use this file except in compliance with the License. 6289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza * You may obtain a copy of the License at 7289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza * 8289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza * http://www.apache.org/licenses/LICENSE-2.0 9289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza * 10289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza * Unless required by applicable law or agreed to in writing, software 11289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza * distributed under the License is distributed on an "AS IS" BASIS, 12289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza * See the License for the specific language governing permissions and 14289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza * limitations under the License. 15289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza */ 16289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 17289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza#include <gui/BufferItem.h> 18289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 19289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza#include <ui/Fence.h> 20289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza#include <ui/GraphicBuffer.h> 21289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 22289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza#include <system/window.h> 23289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 24289ade165e60b5f71734d30e535f16eb1f4313adDan Stozanamespace android { 25289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 26289ade165e60b5f71734d30e535f16eb1f4313adDan StozaBufferItem::BufferItem() : 2760d6922a011fe18c111b8d30fb6ef1f655b6b15ePablo Ceballos mCrop(Rect::INVALID_RECT), 28289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza mTransform(0), 29289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza mScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE), 30289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza mTimestamp(0), 31289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza mIsAutoTimestamp(false), 3282c6bcc9705eabcaf5b9e45bc81867b0e2d61a02Eino-Ville Talvala mDataSpace(HAL_DATASPACE_UNKNOWN), 33289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza mFrameNumber(0), 34289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza mSlot(INVALID_BUFFER_SLOT), 35289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza mIsDroppable(false), 36289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza mAcquireCalled(false), 37289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza mTransformToDisplayInverse(false) { 38289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza} 39289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 408dc55396fc9bc425b5e2c82e76a38080f2a655ffDan StozaBufferItem::~BufferItem() {} 418dc55396fc9bc425b5e2c82e76a38080f2a655ffDan Stoza 42eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stozatemplate <typename T> 43eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stozastatic void addAligned(size_t& size, T /* value */) { 44eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza size = FlattenableUtils::align<sizeof(T)>(size); 45eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza size += sizeof(T); 46eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza} 47eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza 48289ade165e60b5f71734d30e535f16eb1f4313adDan Stozasize_t BufferItem::getPodSize() const { 49eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza size_t size = 0; 50eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza addAligned(size, mCrop); 51eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza addAligned(size, mTransform); 52eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza addAligned(size, mScalingMode); 5347f674dfeca31b29810ecb90f1277918b67c4cf8Chong Zhang addAligned(size, mTimestampLo); 5447f674dfeca31b29810ecb90f1277918b67c4cf8Chong Zhang addAligned(size, mTimestampHi); 55eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza addAligned(size, mIsAutoTimestamp); 56eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza addAligned(size, mDataSpace); 5747f674dfeca31b29810ecb90f1277918b67c4cf8Chong Zhang addAligned(size, mFrameNumberLo); 5847f674dfeca31b29810ecb90f1277918b67c4cf8Chong Zhang addAligned(size, mFrameNumberHi); 59eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza addAligned(size, mSlot); 60eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza addAligned(size, mIsDroppable); 61eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza addAligned(size, mAcquireCalled); 62eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza addAligned(size, mTransformToDisplayInverse); 63eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza return size; 64289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza} 65289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 66289ade165e60b5f71734d30e535f16eb1f4313adDan Stozasize_t BufferItem::getFlattenedSize() const { 67eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza size_t size = sizeof(uint32_t); // Flags 68289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza if (mGraphicBuffer != 0) { 69eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza size += mGraphicBuffer->getFlattenedSize(); 70eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza FlattenableUtils::align<4>(size); 71289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza } 72289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza if (mFence != 0) { 73eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza size += mFence->getFlattenedSize(); 74eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza FlattenableUtils::align<4>(size); 75289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza } 76eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza size += mSurfaceDamage.getFlattenedSize(); 77eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza size = FlattenableUtils::align<8>(size); 78eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza return size + getPodSize(); 79289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza} 80289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 81289ade165e60b5f71734d30e535f16eb1f4313adDan Stozasize_t BufferItem::getFdCount() const { 82eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza size_t count = 0; 83289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza if (mGraphicBuffer != 0) { 84eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza count += mGraphicBuffer->getFdCount(); 85289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza } 86289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza if (mFence != 0) { 87eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza count += mFence->getFdCount(); 88289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza } 89eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza return count; 90eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza} 91eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza 92eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stozatemplate <typename T> 93eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stozastatic void writeAligned(void*& buffer, size_t& size, T value) { 94eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza size -= FlattenableUtils::align<alignof(T)>(buffer); 95eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza FlattenableUtils::write(buffer, size, value); 96289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza} 97289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 98289ade165e60b5f71734d30e535f16eb1f4313adDan Stozastatus_t BufferItem::flatten( 99289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza void*& buffer, size_t& size, int*& fds, size_t& count) const { 100289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 101289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza // make sure we have enough space 102eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza if (size < BufferItem::getFlattenedSize()) { 103289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza return NO_MEMORY; 104289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza } 105289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 106289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza // content flags are stored first 107289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza uint32_t& flags = *static_cast<uint32_t*>(buffer); 108289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 109289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza // advance the pointer 110289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza FlattenableUtils::advance(buffer, size, sizeof(uint32_t)); 111289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 112289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza flags = 0; 113289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza if (mGraphicBuffer != 0) { 114289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza status_t err = mGraphicBuffer->flatten(buffer, size, fds, count); 115289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza if (err) return err; 116289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza size -= FlattenableUtils::align<4>(buffer); 117289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza flags |= 1; 118289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza } 119289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza if (mFence != 0) { 120289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza status_t err = mFence->flatten(buffer, size, fds, count); 121289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza if (err) return err; 122289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza size -= FlattenableUtils::align<4>(buffer); 123289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza flags |= 2; 124289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza } 125eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza 1265065a55291b67f584d7b0be3fa3cfc4e29a3cd1cDan Stoza status_t err = mSurfaceDamage.flatten(buffer, size); 1275065a55291b67f584d7b0be3fa3cfc4e29a3cd1cDan Stoza if (err) return err; 128eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza FlattenableUtils::advance(buffer, size, mSurfaceDamage.getFlattenedSize()); 129eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza 130eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza // Check we still have enough space 131289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza if (size < getPodSize()) { 132289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza return NO_MEMORY; 133289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza } 134289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 135eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza writeAligned(buffer, size, mCrop); 136eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza writeAligned(buffer, size, mTransform); 137eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza writeAligned(buffer, size, mScalingMode); 13847f674dfeca31b29810ecb90f1277918b67c4cf8Chong Zhang writeAligned(buffer, size, mTimestampLo); 13947f674dfeca31b29810ecb90f1277918b67c4cf8Chong Zhang writeAligned(buffer, size, mTimestampHi); 140eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza writeAligned(buffer, size, mIsAutoTimestamp); 141eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza writeAligned(buffer, size, mDataSpace); 14247f674dfeca31b29810ecb90f1277918b67c4cf8Chong Zhang writeAligned(buffer, size, mFrameNumberLo); 14347f674dfeca31b29810ecb90f1277918b67c4cf8Chong Zhang writeAligned(buffer, size, mFrameNumberHi); 144eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza writeAligned(buffer, size, mSlot); 145eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza writeAligned(buffer, size, mIsDroppable); 146eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza writeAligned(buffer, size, mAcquireCalled); 147eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza writeAligned(buffer, size, mTransformToDisplayInverse); 148289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 149289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza return NO_ERROR; 150289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza} 151289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 152eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stozatemplate <typename T> 153eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stozastatic void readAligned(const void*& buffer, size_t& size, T& value) { 154eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza size -= FlattenableUtils::align<alignof(T)>(buffer); 155eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza FlattenableUtils::read(buffer, size, value); 156eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza} 157eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza 158289ade165e60b5f71734d30e535f16eb1f4313adDan Stozastatus_t BufferItem::unflatten( 159289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza void const*& buffer, size_t& size, int const*& fds, size_t& count) { 160289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 161eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza if (size < sizeof(uint32_t)) { 162289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza return NO_MEMORY; 163eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza } 164289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 165289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza uint32_t flags = 0; 166289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza FlattenableUtils::read(buffer, size, flags); 167289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 168289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza if (flags & 1) { 169289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza mGraphicBuffer = new GraphicBuffer(); 170289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza status_t err = mGraphicBuffer->unflatten(buffer, size, fds, count); 171289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza if (err) return err; 172289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza size -= FlattenableUtils::align<4>(buffer); 173289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza } 174289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 175289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza if (flags & 2) { 176289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza mFence = new Fence(); 177289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza status_t err = mFence->unflatten(buffer, size, fds, count); 178289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza if (err) return err; 179289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza size -= FlattenableUtils::align<4>(buffer); 180289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza } 181eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza 1825065a55291b67f584d7b0be3fa3cfc4e29a3cd1cDan Stoza status_t err = mSurfaceDamage.unflatten(buffer, size); 1835065a55291b67f584d7b0be3fa3cfc4e29a3cd1cDan Stoza if (err) return err; 184eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza FlattenableUtils::advance(buffer, size, mSurfaceDamage.getFlattenedSize()); 185eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza 186eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza // Check we still have enough space 187289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza if (size < getPodSize()) { 188289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza return NO_MEMORY; 189289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza } 190289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 191eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza readAligned(buffer, size, mCrop); 192eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza readAligned(buffer, size, mTransform); 193eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza readAligned(buffer, size, mScalingMode); 19447f674dfeca31b29810ecb90f1277918b67c4cf8Chong Zhang readAligned(buffer, size, mTimestampLo); 19547f674dfeca31b29810ecb90f1277918b67c4cf8Chong Zhang readAligned(buffer, size, mTimestampHi); 196eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza readAligned(buffer, size, mIsAutoTimestamp); 197eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza readAligned(buffer, size, mDataSpace); 19847f674dfeca31b29810ecb90f1277918b67c4cf8Chong Zhang readAligned(buffer, size, mFrameNumberLo); 19947f674dfeca31b29810ecb90f1277918b67c4cf8Chong Zhang readAligned(buffer, size, mFrameNumberHi); 200eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza readAligned(buffer, size, mSlot); 201eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza readAligned(buffer, size, mIsDroppable); 202eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza readAligned(buffer, size, mAcquireCalled); 203eea6d682b8b0f7081f0fe8fab8feadb16e22b30bDan Stoza readAligned(buffer, size, mTransformToDisplayInverse); 204289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 205289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza return NO_ERROR; 206289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza} 207289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 208289ade165e60b5f71734d30e535f16eb1f4313adDan Stozaconst char* BufferItem::scalingModeName(uint32_t scalingMode) { 209289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza switch (scalingMode) { 210289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza case NATIVE_WINDOW_SCALING_MODE_FREEZE: return "FREEZE"; 211289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza case NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW: return "SCALE_TO_WINDOW"; 212289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza case NATIVE_WINDOW_SCALING_MODE_SCALE_CROP: return "SCALE_CROP"; 213289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza default: return "Unknown"; 214289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza } 215289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza} 216289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza 217289ade165e60b5f71734d30e535f16eb1f4313adDan Stoza} // namespace android 218