/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * This file incorporates work covered by the following license notice: * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed * with this work for additional information regarding copyright * ownership. The ASF licenses this file to you 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 . */ #include "storpage.hxx" #include #include #include #include #include #include "storbase.hxx" #include "stordata.hxx" #include "stortree.hxx" using namespace store; /*======================================================================== * * OStorePageManager implementation. * *======================================================================*/ const sal_uInt32 OStorePageManager::m_nTypeId = sal_uInt32(0x62190120); /* * OStorePageManager. */ OStorePageManager::OStorePageManager() { } /* * ~OStorePageManager. */ OStorePageManager::~OStorePageManager() { } /* * isKindOf. */ bool OStorePageManager::isKindOf (sal_uInt32 nTypeId) { return (nTypeId == m_nTypeId); } /* * initialize (two-phase construction). * Precond: none. */ storeError OStorePageManager::initialize ( ILockBytes * pLockBytes, storeAccessMode eAccessMode, sal_uInt16 & rnPageSize) { // Acquire exclusive access. osl::MutexGuard aGuard(*this); // Check arguments. if (!pLockBytes) return store_E_InvalidParameter; // Initialize base. storeError eErrCode = base::initialize (pLockBytes, eAccessMode, rnPageSize); if (eErrCode != store_E_None) return eErrCode; // Check for (not) writeable. if (!base::isWriteable()) { // Readonly. Load RootNode. return base::loadObjectAt (m_aRoot, rnPageSize); } // Writeable. Load or Create RootNode. eErrCode = m_aRoot.loadOrCreate (rnPageSize, *this); if (eErrCode == store_E_Pending) { // Creation notification. PageHolderObject< page > xRoot (m_aRoot.get()); // Pre-allocate left most entry (ugly, but we can't insert to left). OStorePageKey aKey (rtl_crc32 (0, "/", 1), 0); xRoot->insert (0, entry(aKey)); // Save RootNode. eErrCode = base::saveObjectAt (m_aRoot, rnPageSize); } // Done. return eErrCode; } /* * find_lookup (w/o split()). * Internal: Precond: initialized, readable, exclusive access. */ storeError OStorePageManager::find_lookup ( OStoreBTreeNodeObject & rNode, sal_uInt16 & rIndex, OStorePageKey const & rKey) { // Find Node and Index. storeError eErrCode = m_aRoot.find_lookup (rNode, rIndex, rKey, *this); if (eErrCode != store_E_None) return eErrCode; // Greater or Equal. PageHolderObject< page > xPage (rNode.get()); SAL_WARN_IF(rIndex >= xPage->usageCount(), "store", "store::PageManager::find_lookup(): logic error"); entry e (xPage->m_pData[rIndex]); // Check for exact match. if (e.compare(entry(rKey)) != entry::COMPARE_EQUAL) { // Page not present. return store_E_NotExists; } // Check address. if (e.m_aLink.location() == STORE_PAGE_NULL) { // Page not present. return store_E_NotExists; } return store_E_None; } /* * remove_Impl (possibly down from root). * Internal: Precond: initialized, writeable, exclusive access. */ storeError OStorePageManager::remove_Impl (entry & rEntry) { OStoreBTreeNodeObject aNode (m_aRoot.get()); // Check current page index. PageHolderObject< page > xPage (aNode.get()); sal_uInt16 i = xPage->find (rEntry), n = xPage->usageCount(); if (i >= n) { // Path to entry not exists (Must not happen(?)). return store_E_NotExists; } // Compare entry. entry::CompareResult result = rEntry.compare (xPage->m_pData[i]); // Iterate down until equal match. while ((result == entry::COMPARE_GREATER) && (xPage->depth() > 0)) { // Check link address. sal_uInt32 const nAddr = xPage->m_pData[i].m_aLink.location(); if (nAddr == STORE_PAGE_NULL) { // Path to entry not exists (Must not happen(?)). return store_E_NotExists; } // Load link page. storeError eErrCode = loadObjectAt (aNode, nAddr); if (eErrCode != store_E_None) return eErrCode; PageHolderObject< page > xNext (aNode.get()); xNext.swap (xPage); // Check index. i = xPage->find (rEntry); n = xPage->usageCount(); if (i >= n) { // Path to entry not exists (Must not happen(?)). return store_E_NotExists; } // Compare entry. result = rEntry.compare (xPage->m_pData[i]); } SAL_WARN_IF( result == entry::COMPARE_LESS, "store", "OStorePageManager::remove(): find failed"); // Check entry comparison. if (result == entry::COMPARE_LESS) { // Must not happen. return store_E_Unknown; } // Remove down from current page (recursive). return aNode.remove (i, rEntry, *this); } /* * namei. * Precond: none (static). */ storeError OStorePageManager::namei ( const rtl_String *pPath, const rtl_String *pName, OStorePageKey &rKey) { // Check parameter. if (!(pPath && pName)) return store_E_InvalidParameter; // Check name length. if (pName->length >= STORE_MAXIMUM_NAMESIZE) return store_E_NameTooLong; // Transform pathname into key. rKey.m_nLow = store::htonl(rtl_crc32 (0, pName->buffer, pName->length)); rKey.m_nHigh = store::htonl(rtl_crc32 (0, pPath->buffer, pPath->length)); // Done. return store_E_None; } /* * iget. * Precond: initialized. */ storeError OStorePageManager::iget ( OStoreDirectoryPageObject & rPage, sal_uInt32 nAttrib, const rtl_String * pPath, const rtl_String * pName, storeAccessMode eMode) { // Acquire exclusive access. osl::MutexGuard aGuard(*this); // Check precond. if (!self::isValid()) return store_E_InvalidAccess; // Setup inode page key. OStorePageKey aKey; storeError eErrCode = namei (pPath, pName, aKey); if (eErrCode != store_E_None) return eErrCode; // Check for directory. if (nAttrib & STORE_ATTRIB_ISDIR) { // Ugly, but necessary (backward compatibility). aKey.m_nLow = store::htonl(rtl_crc32 (store::ntohl(aKey.m_nLow), "/", 1)); } // Load inode page. eErrCode = load_dirpage_Impl (aKey, rPage); if (eErrCode != store_E_None) { // Check mode and reason. if (eErrCode != store_E_NotExists) return eErrCode; if (eMode == storeAccessMode::ReadWrite) return store_E_NotExists; if (eMode == storeAccessMode::ReadOnly) return store_E_NotExists; if (!base::isWriteable()) return store_E_AccessViolation; // Create inode page. eErrCode = rPage.construct< inode >(base::allocator()); if (eErrCode != store_E_None) return eErrCode; // Setup inode nameblock. PageHolderObject< inode > xPage (rPage.get()); rPage.key (aKey); rPage.attrib (nAttrib); memcpy ( &(xPage->m_aNameBlock.m_pData[0]), pName->buffer, pName->length); // Save inode page. eErrCode = save_dirpage_Impl (aKey, rPage); if (eErrCode != store_E_None) return eErrCode; } // Check for symbolic link. if (rPage.attrib() & STORE_ATTRIB_ISLINK) { // Obtain 'Destination' page key. PageHolderObject< inode > xPage (rPage.get()); OStorePageKey aDstKey; memcpy (&aDstKey, &(xPage->m_pData[0]), sizeof(aDstKey)); // Load 'Destination' inode. eErrCode = load_dirpage_Impl (aDstKey, rPage); if (eErrCode != store_E_None) return eErrCode; } // Done. return store_E_None; } /* * iterate. * Precond: initialized. * ToDo: skip hardlink entries. */ storeError OStorePageManager::iterate ( OStorePageKey & rKey, OStorePageLink & rLink, sal_uInt32 & rAttrib) { // Acquire exclusive access. osl::MutexGuard aGuard(*this); // Check precond. if (!self::isValid()) return store_E_InvalidAccess; // Find NodePage and Index. OStoreBTreeNodeObject aNode; sal_uInt16 i = 0; storeError eErrCode = m_aRoot.find_lookup (aNode, i, rKey, *this); if (eErrCode != store_E_None) return eErrCode; // GreaterEqual. Found next entry. PageHolderObject< page > xNode (aNode.get()); entry e (xNode->m_pData[i]); // Setup result. rKey = e.m_aKey; rLink = e.m_aLink; rAttrib = store::ntohl(e.m_nAttrib); // Done. return store_E_None; } /* * load => private: iget() @@@ * Internal: Precond: initialized, exclusive access. */ storeError OStorePageManager::load_dirpage_Impl ( const OStorePageKey &rKey, OStoreDirectoryPageObject &rPage) { // Find Node and Index. OStoreBTreeNodeObject aNode; sal_uInt16 i = 0; storeError eErrCode = find_lookup (aNode, i, rKey); if (eErrCode != store_E_None) return eErrCode; // Existing entry. Load page. PageHolderObject< page > xNode (aNode.get()); entry e (xNode->m_pData[i]); return loadObjectAt (rPage, e.m_aLink.location()); } /* * save => private: iget(), rebuild() @@@ * Internal: Precond: initialized, writeable, exclusive access. */ storeError OStorePageManager::save_dirpage_Impl ( const OStorePageKey &rKey, OStoreDirectoryPageObject &rPage) { // Find NodePage and Index. node aNode; sal_uInt16 i = 0; storeError eErrCode = m_aRoot.find_insert (aNode, i, rKey, *this); PageHolderObject< page > xNode (aNode.get()); if (eErrCode != store_E_None) { if (eErrCode != store_E_AlreadyExists) return eErrCode; // Existing entry. entry e (xNode->m_pData[i]); if (e.m_aLink.location() != STORE_PAGE_NULL) { // Save page to existing location. return saveObjectAt (rPage, e.m_aLink.location()); } // Allocate page. eErrCode = base::allocate (rPage); if (eErrCode != store_E_None) return eErrCode; // Update page location. xNode->m_pData[i].m_aLink = rPage.location(); // Save modified NodePage. return saveObjectAt (aNode, aNode.location()); } // Allocate page. eErrCode = base::allocate (rPage); if (eErrCode != store_E_None) return eErrCode; // Insert. OStorePageLink aLink (rPage.location()); xNode->insert (i + 1, entry (rKey, aLink)); // Save modified NodePage. return saveObjectAt (aNode, aNode.location()); } /* * remove. * Precond: initialized, writeable. */ storeError OStorePageManager::remove (const OStorePageKey &rKey) { // Acquire exclusive access. osl::MutexGuard aGuard(*this); // Check precond. if (!self::isValid()) return store_E_InvalidAccess; if (!base::isWriteable()) return store_E_AccessViolation; // Find NodePage and index. OStoreBTreeNodeObject aNodePage; sal_uInt16 i = 0; storeError eErrCode = find_lookup (aNodePage, i, rKey); if (eErrCode != store_E_None) return eErrCode; // Existing entry. PageHolderObject< page > xNodePage (aNodePage.get()); entry e (xNodePage->m_pData[i]); // Check for (not a) hardlink. if (!(store::ntohl(e.m_nAttrib) & STORE_ATTRIB_ISLINK)) { // Load directory page. OStoreDirectoryPageObject aPage; eErrCode = base::loadObjectAt (aPage, e.m_aLink.location()); if (eErrCode != store_E_None) return eErrCode; inode_holder_type xNode (aPage.get()); // Acquire page write access. OStorePageDescriptor aDescr (xNode->m_aDescr); eErrCode = base::acquirePage (aDescr, storeAccessMode::ReadWrite); if (eErrCode != store_E_None) return eErrCode; // Check for symbolic link. if (!(aPage.attrib() & STORE_ATTRIB_ISLINK)) { // Ordinary inode. Determine 'Data' scope. inode::ChunkScope eScope = xNode->scope (aPage.dataLength()); if (eScope == inode::SCOPE_EXTERNAL) { // External 'Data' scope. Truncate all external data pages. eErrCode = aPage.truncate (0, *this); if (eErrCode != store_E_None) return eErrCode; } // Truncate internal data page. memset (&(xNode->m_pData[0]), 0, xNode->capacity()); aPage.dataLength (0); } // Release page write access. base::releasePage (aDescr); // Release and free directory page. (void)base::free (aPage.location()); } // Remove entry. return remove_Impl (e); } /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ c'>feature/cib_contract49c LibreOffice 核心代码仓库文档基金会
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path: root/canvas/opengl
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2014-09-02make the shaders compliant to GLSL 1.2Markus Mohrhard
Change-Id: Ic15760ca40d719ae333003c9bc241c813cb284fa
2014-08-08extract shaders to own file and use shared shader loadingMarkus Mohrhard
Change-Id: I1af7e03a3e46f3cb49162be9351ce22f54d08c52