michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "gfxDWriteCommon.h"
michael@0: 
michael@0: IDWriteFontFileLoader* gfxDWriteFontFileLoader::mInstance = nullptr;
michael@0: 
michael@0: HRESULT STDMETHODCALLTYPE
michael@0: gfxDWriteFontFileLoader::CreateStreamFromKey(const void *fontFileReferenceKey, 
michael@0:                                              UINT32 fontFileReferenceKeySize, 
michael@0:                                              IDWriteFontFileStream **fontFileStream)
michael@0: {
michael@0:     if (!fontFileReferenceKey || !fontFileStream) {
michael@0:         return E_POINTER;
michael@0:     }
michael@0: 
michael@0:     *fontFileStream = 
michael@0:         new gfxDWriteFontFileStream(
michael@0:         static_cast<const ffReferenceKey*>(fontFileReferenceKey)->mArray);
michael@0: 
michael@0:     if (!*fontFileStream) {
michael@0:         return E_OUTOFMEMORY;
michael@0:     }
michael@0:     (*fontFileStream)->AddRef();
michael@0:     return S_OK;
michael@0: }
michael@0: 
michael@0: gfxDWriteFontFileStream::gfxDWriteFontFileStream(FallibleTArray<uint8_t> *aData)
michael@0: {
michael@0:     mData.SwapElements(*aData);
michael@0: }
michael@0: 
michael@0: gfxDWriteFontFileStream::~gfxDWriteFontFileStream()
michael@0: {
michael@0: }
michael@0: 
michael@0: HRESULT STDMETHODCALLTYPE
michael@0: gfxDWriteFontFileStream::GetFileSize(UINT64 *fileSize)
michael@0: {
michael@0:     *fileSize = mData.Length();
michael@0:     return S_OK;
michael@0: }
michael@0: 
michael@0: HRESULT STDMETHODCALLTYPE
michael@0: gfxDWriteFontFileStream::GetLastWriteTime(UINT64 *lastWriteTime)
michael@0: {
michael@0:     return E_NOTIMPL;
michael@0: }
michael@0: 
michael@0: HRESULT STDMETHODCALLTYPE
michael@0: gfxDWriteFontFileStream::ReadFileFragment(const void **fragmentStart,
michael@0:                                           UINT64 fileOffset,
michael@0:                                           UINT64 fragmentSize,
michael@0:                                           void **fragmentContext)
michael@0: {
michael@0:     // We are required to do bounds checking.
michael@0:     if (fileOffset + fragmentSize > (UINT64)mData.Length()) {
michael@0:         return E_FAIL;
michael@0:     }
michael@0:     // We should be alive for the duration of this.
michael@0:     *fragmentStart = &mData[fileOffset];
michael@0:     *fragmentContext = nullptr;
michael@0:     return S_OK;
michael@0: }
michael@0: 
michael@0: void STDMETHODCALLTYPE
michael@0: gfxDWriteFontFileStream::ReleaseFileFragment(void *fragmentContext)
michael@0: {
michael@0: }