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104 lines
3.5 KiB
C++
104 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Foundation code.
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*
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* The Initial Developer of the Original Code is Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Bas Schouten <bschouten@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "gfxDWriteCommon.h"
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IDWriteFontFileLoader* gfxDWriteFontFileLoader::mInstance = NULL;
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HRESULT STDMETHODCALLTYPE
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gfxDWriteFontFileLoader::CreateStreamFromKey(const void *fontFileReferenceKey,
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UINT32 fontFileReferenceKeySize,
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IDWriteFontFileStream **fontFileStream)
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{
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if (!fontFileReferenceKey || !fontFileStream) {
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return E_POINTER;
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}
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*fontFileStream =
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new gfxDWriteFontFileStream(
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static_cast<const ffReferenceKey*>(fontFileReferenceKey)->mArray);
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if (!*fontFileStream) {
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return E_OUTOFMEMORY;
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}
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(*fontFileStream)->AddRef();
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return S_OK;
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}
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gfxDWriteFontFileStream::gfxDWriteFontFileStream(FallibleTArray<PRUint8> *aData)
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{
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mData.SwapElements(*aData);
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}
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gfxDWriteFontFileStream::~gfxDWriteFontFileStream()
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{
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}
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HRESULT STDMETHODCALLTYPE
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gfxDWriteFontFileStream::GetFileSize(UINT64 *fileSize)
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{
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*fileSize = mData.Length();
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return S_OK;
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}
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HRESULT STDMETHODCALLTYPE
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gfxDWriteFontFileStream::GetLastWriteTime(UINT64 *lastWriteTime)
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{
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return E_NOTIMPL;
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}
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HRESULT STDMETHODCALLTYPE
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gfxDWriteFontFileStream::ReadFileFragment(const void **fragmentStart,
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UINT64 fileOffset,
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UINT64 fragmentSize,
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void **fragmentContext)
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{
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// We are required to do bounds checking.
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if (fileOffset + fragmentSize > (UINT64)mData.Length()) {
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return E_FAIL;
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}
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// We should be alive for the duration of this.
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*fragmentStart = &mData[fileOffset];
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*fragmentContext = NULL;
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return S_OK;
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}
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void STDMETHODCALLTYPE
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gfxDWriteFontFileStream::ReleaseFileFragment(void *fragmentContext)
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{
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}
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