13330b203039dea366d4981db1408a460134b2d2cMathias Agopian/* 23330b203039dea366d4981db1408a460134b2d2cMathias Agopian * Copyright (C) 2007 The Android Open Source Project 33330b203039dea366d4981db1408a460134b2d2cMathias Agopian * 43330b203039dea366d4981db1408a460134b2d2cMathias Agopian * Licensed under the Apache License, Version 2.0 (the "License"); 53330b203039dea366d4981db1408a460134b2d2cMathias Agopian * you may not use this file except in compliance with the License. 63330b203039dea366d4981db1408a460134b2d2cMathias Agopian * You may obtain a copy of the License at 73330b203039dea366d4981db1408a460134b2d2cMathias Agopian * 83330b203039dea366d4981db1408a460134b2d2cMathias Agopian * http://www.apache.org/licenses/LICENSE-2.0 93330b203039dea366d4981db1408a460134b2d2cMathias Agopian * 103330b203039dea366d4981db1408a460134b2d2cMathias Agopian * Unless required by applicable law or agreed to in writing, software 113330b203039dea366d4981db1408a460134b2d2cMathias Agopian * distributed under the License is distributed on an "AS IS" BASIS, 123330b203039dea366d4981db1408a460134b2d2cMathias Agopian * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 133330b203039dea366d4981db1408a460134b2d2cMathias Agopian * See the License for the specific language governing permissions and 143330b203039dea366d4981db1408a460134b2d2cMathias Agopian * limitations under the License. 153330b203039dea366d4981db1408a460134b2d2cMathias Agopian */ 163330b203039dea366d4981db1408a460134b2d2cMathias Agopian 1798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian#define LOG_TAG "GraphicBuffer" 1898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 193330b203039dea366d4981db1408a460134b2d2cMathias Agopian#include <stdlib.h> 203330b203039dea366d4981db1408a460134b2d2cMathias Agopian#include <stdint.h> 213330b203039dea366d4981db1408a460134b2d2cMathias Agopian#include <sys/types.h> 223330b203039dea366d4981db1408a460134b2d2cMathias Agopian 233330b203039dea366d4981db1408a460134b2d2cMathias Agopian#include <utils/Errors.h> 243330b203039dea366d4981db1408a460134b2d2cMathias Agopian#include <utils/Log.h> 253330b203039dea366d4981db1408a460134b2d2cMathias Agopian 263330b203039dea366d4981db1408a460134b2d2cMathias Agopian#include <ui/GraphicBuffer.h> 273330b203039dea366d4981db1408a460134b2d2cMathias Agopian#include <ui/GraphicBufferAllocator.h> 283330b203039dea366d4981db1408a460134b2d2cMathias Agopian#include <ui/GraphicBufferMapper.h> 293330b203039dea366d4981db1408a460134b2d2cMathias Agopian#include <ui/PixelFormat.h> 303330b203039dea366d4981db1408a460134b2d2cMathias Agopian 313330b203039dea366d4981db1408a460134b2d2cMathias Agopiannamespace android { 323330b203039dea366d4981db1408a460134b2d2cMathias Agopian 333330b203039dea366d4981db1408a460134b2d2cMathias Agopian// =========================================================================== 34697526bc9e44ce61c88614f98387ae8bbf0a187eIliyan Malchev// Buffer and implementation of ANativeWindowBuffer 353330b203039dea366d4981db1408a460134b2d2cMathias Agopian// =========================================================================== 363330b203039dea366d4981db1408a460134b2d2cMathias Agopian 373330b203039dea366d4981db1408a460134b2d2cMathias AgopianGraphicBuffer::GraphicBuffer() 3854ba51dff21de666c5ae3bf3abd4f0634ebb0676Mathias Agopian : BASE(), mOwner(ownData), mBufferMapper(GraphicBufferMapper::get()), 3987f9b877964b7d7db9b59ba45b73b4b1a779ecf8Mathias Agopian mInitCheck(NO_ERROR) { 403330b203039dea366d4981db1408a460134b2d2cMathias Agopian width = 413330b203039dea366d4981db1408a460134b2d2cMathias Agopian height = 423330b203039dea366d4981db1408a460134b2d2cMathias Agopian stride = 433330b203039dea366d4981db1408a460134b2d2cMathias Agopian format = 443330b203039dea366d4981db1408a460134b2d2cMathias Agopian usage = 0; 453330b203039dea366d4981db1408a460134b2d2cMathias Agopian handle = NULL; 463330b203039dea366d4981db1408a460134b2d2cMathias Agopian} 473330b203039dea366d4981db1408a460134b2d2cMathias Agopian 483330b203039dea366d4981db1408a460134b2d2cMathias AgopianGraphicBuffer::GraphicBuffer(uint32_t w, uint32_t h, 493330b203039dea366d4981db1408a460134b2d2cMathias Agopian PixelFormat reqFormat, uint32_t reqUsage) 5054ba51dff21de666c5ae3bf3abd4f0634ebb0676Mathias Agopian : BASE(), mOwner(ownData), mBufferMapper(GraphicBufferMapper::get()), 5187f9b877964b7d7db9b59ba45b73b4b1a779ecf8Mathias Agopian mInitCheck(NO_ERROR) 523330b203039dea366d4981db1408a460134b2d2cMathias Agopian{ 533330b203039dea366d4981db1408a460134b2d2cMathias Agopian width = 543330b203039dea366d4981db1408a460134b2d2cMathias Agopian height = 553330b203039dea366d4981db1408a460134b2d2cMathias Agopian stride = 563330b203039dea366d4981db1408a460134b2d2cMathias Agopian format = 573330b203039dea366d4981db1408a460134b2d2cMathias Agopian usage = 0; 583330b203039dea366d4981db1408a460134b2d2cMathias Agopian handle = NULL; 593330b203039dea366d4981db1408a460134b2d2cMathias Agopian mInitCheck = initSize(w, h, reqFormat, reqUsage); 603330b203039dea366d4981db1408a460134b2d2cMathias Agopian} 613330b203039dea366d4981db1408a460134b2d2cMathias Agopian 6254ba51dff21de666c5ae3bf3abd4f0634ebb0676Mathias AgopianGraphicBuffer::GraphicBuffer(uint32_t w, uint32_t h, 6354ba51dff21de666c5ae3bf3abd4f0634ebb0676Mathias Agopian PixelFormat inFormat, uint32_t inUsage, 6454ba51dff21de666c5ae3bf3abd4f0634ebb0676Mathias Agopian uint32_t inStride, native_handle_t* inHandle, bool keepOwnership) 6554ba51dff21de666c5ae3bf3abd4f0634ebb0676Mathias Agopian : BASE(), mOwner(keepOwnership ? ownHandle : ownNone), 6654ba51dff21de666c5ae3bf3abd4f0634ebb0676Mathias Agopian mBufferMapper(GraphicBufferMapper::get()), 6787f9b877964b7d7db9b59ba45b73b4b1a779ecf8Mathias Agopian mInitCheck(NO_ERROR) 6854ba51dff21de666c5ae3bf3abd4f0634ebb0676Mathias Agopian{ 6954ba51dff21de666c5ae3bf3abd4f0634ebb0676Mathias Agopian width = w; 7054ba51dff21de666c5ae3bf3abd4f0634ebb0676Mathias Agopian height = h; 7154ba51dff21de666c5ae3bf3abd4f0634ebb0676Mathias Agopian stride = inStride; 7254ba51dff21de666c5ae3bf3abd4f0634ebb0676Mathias Agopian format = inFormat; 7354ba51dff21de666c5ae3bf3abd4f0634ebb0676Mathias Agopian usage = inUsage; 7454ba51dff21de666c5ae3bf3abd4f0634ebb0676Mathias Agopian handle = inHandle; 7554ba51dff21de666c5ae3bf3abd4f0634ebb0676Mathias Agopian} 7654ba51dff21de666c5ae3bf3abd4f0634ebb0676Mathias Agopian 77697526bc9e44ce61c88614f98387ae8bbf0a187eIliyan MalchevGraphicBuffer::GraphicBuffer(ANativeWindowBuffer* buffer, bool keepOwnership) 78309d3bb2f902163356f9d40b6d45c11b435d77a9Jamie Gennis : BASE(), mOwner(keepOwnership ? ownHandle : ownNone), 79309d3bb2f902163356f9d40b6d45c11b435d77a9Jamie Gennis mBufferMapper(GraphicBufferMapper::get()), 8087f9b877964b7d7db9b59ba45b73b4b1a779ecf8Mathias Agopian mInitCheck(NO_ERROR), mWrappedBuffer(buffer) 81309d3bb2f902163356f9d40b6d45c11b435d77a9Jamie Gennis{ 82309d3bb2f902163356f9d40b6d45c11b435d77a9Jamie Gennis width = buffer->width; 83309d3bb2f902163356f9d40b6d45c11b435d77a9Jamie Gennis height = buffer->height; 84309d3bb2f902163356f9d40b6d45c11b435d77a9Jamie Gennis stride = buffer->stride; 85309d3bb2f902163356f9d40b6d45c11b435d77a9Jamie Gennis format = buffer->format; 86309d3bb2f902163356f9d40b6d45c11b435d77a9Jamie Gennis usage = buffer->usage; 87309d3bb2f902163356f9d40b6d45c11b435d77a9Jamie Gennis handle = buffer->handle; 88309d3bb2f902163356f9d40b6d45c11b435d77a9Jamie Gennis} 89309d3bb2f902163356f9d40b6d45c11b435d77a9Jamie Gennis 9098e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias AgopianGraphicBuffer::~GraphicBuffer() 913330b203039dea366d4981db1408a460134b2d2cMathias Agopian{ 9298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (handle) { 9398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian free_handle(); 943330b203039dea366d4981db1408a460134b2d2cMathias Agopian } 953330b203039dea366d4981db1408a460134b2d2cMathias Agopian} 963330b203039dea366d4981db1408a460134b2d2cMathias Agopian 9798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopianvoid GraphicBuffer::free_handle() 983330b203039dea366d4981db1408a460134b2d2cMathias Agopian{ 9998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (mOwner == ownHandle) { 100309d3bb2f902163356f9d40b6d45c11b435d77a9Jamie Gennis mBufferMapper.unregisterBuffer(handle); 10198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian native_handle_close(handle); 10298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian native_handle_delete(const_cast<native_handle*>(handle)); 10398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian } else if (mOwner == ownData) { 10498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian GraphicBufferAllocator& allocator(GraphicBufferAllocator::get()); 10598e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian allocator.free(handle); 1063330b203039dea366d4981db1408a460134b2d2cMathias Agopian } 107309d3bb2f902163356f9d40b6d45c11b435d77a9Jamie Gennis mWrappedBuffer = 0; 1083330b203039dea366d4981db1408a460134b2d2cMathias Agopian} 1093330b203039dea366d4981db1408a460134b2d2cMathias Agopian 1103330b203039dea366d4981db1408a460134b2d2cMathias Agopianstatus_t GraphicBuffer::initCheck() const { 1113330b203039dea366d4981db1408a460134b2d2cMathias Agopian return mInitCheck; 1123330b203039dea366d4981db1408a460134b2d2cMathias Agopian} 1133330b203039dea366d4981db1408a460134b2d2cMathias Agopian 114678bdd6349344df254cc0c3377a40fd99e216635Mathias Agopianvoid GraphicBuffer::dumpAllocationsToSystemLog() 115678bdd6349344df254cc0c3377a40fd99e216635Mathias Agopian{ 116678bdd6349344df254cc0c3377a40fd99e216635Mathias Agopian GraphicBufferAllocator::dumpToSystemLog(); 117678bdd6349344df254cc0c3377a40fd99e216635Mathias Agopian} 118678bdd6349344df254cc0c3377a40fd99e216635Mathias Agopian 119697526bc9e44ce61c88614f98387ae8bbf0a187eIliyan MalchevANativeWindowBuffer* GraphicBuffer::getNativeBuffer() const 1203330b203039dea366d4981db1408a460134b2d2cMathias Agopian{ 121697526bc9e44ce61c88614f98387ae8bbf0a187eIliyan Malchev return static_cast<ANativeWindowBuffer*>( 1223330b203039dea366d4981db1408a460134b2d2cMathias Agopian const_cast<GraphicBuffer*>(this)); 1233330b203039dea366d4981db1408a460134b2d2cMathias Agopian} 1243330b203039dea366d4981db1408a460134b2d2cMathias Agopian 1253330b203039dea366d4981db1408a460134b2d2cMathias Agopianstatus_t GraphicBuffer::reallocate(uint32_t w, uint32_t h, PixelFormat f, 1263330b203039dea366d4981db1408a460134b2d2cMathias Agopian uint32_t reqUsage) 1273330b203039dea366d4981db1408a460134b2d2cMathias Agopian{ 12854ba51dff21de666c5ae3bf3abd4f0634ebb0676Mathias Agopian if (mOwner != ownData) 12954ba51dff21de666c5ae3bf3abd4f0634ebb0676Mathias Agopian return INVALID_OPERATION; 13054ba51dff21de666c5ae3bf3abd4f0634ebb0676Mathias Agopian 131579b3f88d03d06b897b778bd11818f5104677d1dMathias Agopian if (handle && w==width && h==height && f==format && reqUsage==usage) 132579b3f88d03d06b897b778bd11818f5104677d1dMathias Agopian return NO_ERROR; 133579b3f88d03d06b897b778bd11818f5104677d1dMathias Agopian 1343330b203039dea366d4981db1408a460134b2d2cMathias Agopian if (handle) { 1353330b203039dea366d4981db1408a460134b2d2cMathias Agopian GraphicBufferAllocator& allocator(GraphicBufferAllocator::get()); 1363330b203039dea366d4981db1408a460134b2d2cMathias Agopian allocator.free(handle); 1373330b203039dea366d4981db1408a460134b2d2cMathias Agopian handle = 0; 1383330b203039dea366d4981db1408a460134b2d2cMathias Agopian } 1393330b203039dea366d4981db1408a460134b2d2cMathias Agopian return initSize(w, h, f, reqUsage); 1403330b203039dea366d4981db1408a460134b2d2cMathias Agopian} 1413330b203039dea366d4981db1408a460134b2d2cMathias Agopian 1423330b203039dea366d4981db1408a460134b2d2cMathias Agopianstatus_t GraphicBuffer::initSize(uint32_t w, uint32_t h, PixelFormat format, 1433330b203039dea366d4981db1408a460134b2d2cMathias Agopian uint32_t reqUsage) 1443330b203039dea366d4981db1408a460134b2d2cMathias Agopian{ 1453330b203039dea366d4981db1408a460134b2d2cMathias Agopian GraphicBufferAllocator& allocator = GraphicBufferAllocator::get(); 1463330b203039dea366d4981db1408a460134b2d2cMathias Agopian status_t err = allocator.alloc(w, h, format, reqUsage, &handle, &stride); 1473330b203039dea366d4981db1408a460134b2d2cMathias Agopian if (err == NO_ERROR) { 1483330b203039dea366d4981db1408a460134b2d2cMathias Agopian this->width = w; 1493330b203039dea366d4981db1408a460134b2d2cMathias Agopian this->height = h; 1503330b203039dea366d4981db1408a460134b2d2cMathias Agopian this->format = format; 1513330b203039dea366d4981db1408a460134b2d2cMathias Agopian this->usage = reqUsage; 1523330b203039dea366d4981db1408a460134b2d2cMathias Agopian } 1533330b203039dea366d4981db1408a460134b2d2cMathias Agopian return err; 1543330b203039dea366d4981db1408a460134b2d2cMathias Agopian} 1553330b203039dea366d4981db1408a460134b2d2cMathias Agopian 1563330b203039dea366d4981db1408a460134b2d2cMathias Agopianstatus_t GraphicBuffer::lock(uint32_t usage, void** vaddr) 1573330b203039dea366d4981db1408a460134b2d2cMathias Agopian{ 1583330b203039dea366d4981db1408a460134b2d2cMathias Agopian const Rect lockBounds(width, height); 1593330b203039dea366d4981db1408a460134b2d2cMathias Agopian status_t res = lock(usage, lockBounds, vaddr); 1603330b203039dea366d4981db1408a460134b2d2cMathias Agopian return res; 1613330b203039dea366d4981db1408a460134b2d2cMathias Agopian} 1623330b203039dea366d4981db1408a460134b2d2cMathias Agopian 1633330b203039dea366d4981db1408a460134b2d2cMathias Agopianstatus_t GraphicBuffer::lock(uint32_t usage, const Rect& rect, void** vaddr) 1643330b203039dea366d4981db1408a460134b2d2cMathias Agopian{ 1653330b203039dea366d4981db1408a460134b2d2cMathias Agopian if (rect.left < 0 || rect.right > this->width || 1663330b203039dea366d4981db1408a460134b2d2cMathias Agopian rect.top < 0 || rect.bottom > this->height) { 167e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block ALOGE("locking pixels (%d,%d,%d,%d) outside of buffer (w=%d, h=%d)", 1683330b203039dea366d4981db1408a460134b2d2cMathias Agopian rect.left, rect.top, rect.right, rect.bottom, 1693330b203039dea366d4981db1408a460134b2d2cMathias Agopian this->width, this->height); 1703330b203039dea366d4981db1408a460134b2d2cMathias Agopian return BAD_VALUE; 1713330b203039dea366d4981db1408a460134b2d2cMathias Agopian } 1723330b203039dea366d4981db1408a460134b2d2cMathias Agopian status_t res = getBufferMapper().lock(handle, usage, rect, vaddr); 1733330b203039dea366d4981db1408a460134b2d2cMathias Agopian return res; 1743330b203039dea366d4981db1408a460134b2d2cMathias Agopian} 1753330b203039dea366d4981db1408a460134b2d2cMathias Agopian 176c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvalastatus_t GraphicBuffer::lockYCbCr(uint32_t usage, android_ycbcr *ycbcr) 177c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvala{ 178c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvala const Rect lockBounds(width, height); 179c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvala status_t res = lockYCbCr(usage, lockBounds, ycbcr); 180c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvala return res; 181c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvala} 182c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvala 183c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvalastatus_t GraphicBuffer::lockYCbCr(uint32_t usage, const Rect& rect, 184c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvala android_ycbcr *ycbcr) 185c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvala{ 186c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvala if (rect.left < 0 || rect.right > this->width || 187c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvala rect.top < 0 || rect.bottom > this->height) { 188c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvala ALOGE("locking pixels (%d,%d,%d,%d) outside of buffer (w=%d, h=%d)", 189c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvala rect.left, rect.top, rect.right, rect.bottom, 190c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvala this->width, this->height); 191c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvala return BAD_VALUE; 192c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvala } 193c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvala status_t res = getBufferMapper().lockYCbCr(handle, usage, rect, ycbcr); 194c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvala return res; 195c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvala} 196c43946b931de5dafd28f49963f9af78e05390b26Eino-Ville Talvala 1973330b203039dea366d4981db1408a460134b2d2cMathias Agopianstatus_t GraphicBuffer::unlock() 1983330b203039dea366d4981db1408a460134b2d2cMathias Agopian{ 1993330b203039dea366d4981db1408a460134b2d2cMathias Agopian status_t res = getBufferMapper().unlock(handle); 2003330b203039dea366d4981db1408a460134b2d2cMathias Agopian return res; 2013330b203039dea366d4981db1408a460134b2d2cMathias Agopian} 2023330b203039dea366d4981db1408a460134b2d2cMathias Agopian 20398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopiansize_t GraphicBuffer::getFlattenedSize() const { 20498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian return (8 + (handle ? handle->numInts : 0))*sizeof(int); 20598e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian} 20698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 20798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopiansize_t GraphicBuffer::getFdCount() const { 20898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian return handle ? handle->numFds : 0; 20998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian} 2103330b203039dea366d4981db1408a460134b2d2cMathias Agopian 211e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopianstatus_t GraphicBuffer::flatten(void*& buffer, size_t& size, int*& fds, size_t& count) const { 21298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian size_t sizeNeeded = GraphicBuffer::getFlattenedSize(); 21398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (size < sizeNeeded) return NO_MEMORY; 21498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 21598e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian size_t fdCountNeeded = GraphicBuffer::getFdCount(); 21698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (count < fdCountNeeded) return NO_MEMORY; 21798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 21898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian int* buf = static_cast<int*>(buffer); 21998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian buf[0] = 'GBFR'; 22098e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian buf[1] = width; 22198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian buf[2] = height; 22298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian buf[3] = stride; 22398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian buf[4] = format; 22498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian buf[5] = usage; 22598e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian buf[6] = 0; 22698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian buf[7] = 0; 2273330b203039dea366d4981db1408a460134b2d2cMathias Agopian 22898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (handle) { 22998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian buf[6] = handle->numFds; 23098e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian buf[7] = handle->numInts; 23198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian native_handle_t const* const h = handle; 23298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian memcpy(fds, h->data, h->numFds*sizeof(int)); 23398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian memcpy(&buf[8], h->data + h->numFds, h->numInts*sizeof(int)); 23498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian } 23598e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 236e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian buffer = reinterpret_cast<void*>(static_cast<int*>(buffer) + sizeNeeded); 237e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian size -= sizeNeeded; 238e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian fds += handle->numFds; 239e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian count -= handle->numFds; 240e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian 24198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian return NO_ERROR; 24298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian} 24398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 244e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopianstatus_t GraphicBuffer::unflatten( 245e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian void const*& buffer, size_t& size, int const*& fds, size_t& count) { 24698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (size < 8*sizeof(int)) return NO_MEMORY; 24798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 24898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian int const* buf = static_cast<int const*>(buffer); 24998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (buf[0] != 'GBFR') return BAD_TYPE; 25098e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 25198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian const size_t numFds = buf[6]; 25298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian const size_t numInts = buf[7]; 2533330b203039dea366d4981db1408a460134b2d2cMathias Agopian 25498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian const size_t sizeNeeded = (8 + numInts) * sizeof(int); 25598e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (size < sizeNeeded) return NO_MEMORY; 25698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 25798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian size_t fdCountNeeded = 0; 25898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (count < fdCountNeeded) return NO_MEMORY; 25998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 26098e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (handle) { 26198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian // free previous handle if any 26298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian free_handle(); 26398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian } 26498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 26598e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian if (numFds || numInts) { 26698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian width = buf[1]; 26798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian height = buf[2]; 26898e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian stride = buf[3]; 26998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian format = buf[4]; 27098e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian usage = buf[5]; 27198e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian native_handle* h = native_handle_create(numFds, numInts); 27298e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian memcpy(h->data, fds, numFds*sizeof(int)); 27398e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian memcpy(h->data + numFds, &buf[8], numInts*sizeof(int)); 27498e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian handle = h; 2753330b203039dea366d4981db1408a460134b2d2cMathias Agopian } else { 27698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian width = height = stride = format = usage = 0; 27798e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian handle = NULL; 2783330b203039dea366d4981db1408a460134b2d2cMathias Agopian } 27998e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian 28098e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian mOwner = ownHandle; 281309d3bb2f902163356f9d40b6d45c11b435d77a9Jamie Gennis 282309d3bb2f902163356f9d40b6d45c11b435d77a9Jamie Gennis if (handle != 0) { 283d69097f936d9780957a51ce77335ae409b32aaa3Jamie Gennis status_t err = mBufferMapper.registerBuffer(handle); 284d69097f936d9780957a51ce77335ae409b32aaa3Jamie Gennis if (err != NO_ERROR) { 285d69097f936d9780957a51ce77335ae409b32aaa3Jamie Gennis ALOGE("unflatten: registerBuffer failed: %s (%d)", 286d69097f936d9780957a51ce77335ae409b32aaa3Jamie Gennis strerror(-err), err); 287d69097f936d9780957a51ce77335ae409b32aaa3Jamie Gennis return err; 288d69097f936d9780957a51ce77335ae409b32aaa3Jamie Gennis } 289309d3bb2f902163356f9d40b6d45c11b435d77a9Jamie Gennis } 290309d3bb2f902163356f9d40b6d45c11b435d77a9Jamie Gennis 291e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian buffer = reinterpret_cast<void const*>(static_cast<int const*>(buffer) + sizeNeeded); 292e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian size -= sizeNeeded; 293e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian fds += numFds; 294e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian count -= numFds; 295e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian 29698e71ddaede9a0bfb681fd237bec1f66c6c53193Mathias Agopian return NO_ERROR; 2973330b203039dea366d4981db1408a460134b2d2cMathias Agopian} 2983330b203039dea366d4981db1408a460134b2d2cMathias Agopian 2993330b203039dea366d4981db1408a460134b2d2cMathias Agopian// --------------------------------------------------------------------------- 3003330b203039dea366d4981db1408a460134b2d2cMathias Agopian 3013330b203039dea366d4981db1408a460134b2d2cMathias Agopian}; // namespace android 302