gfx/thebes/gfxDWriteCommon.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/thebes/gfxDWriteCommon.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,71 @@
     1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
     1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#include "gfxDWriteCommon.h"
    1.10 +
    1.11 +IDWriteFontFileLoader* gfxDWriteFontFileLoader::mInstance = nullptr;
    1.12 +
    1.13 +HRESULT STDMETHODCALLTYPE
    1.14 +gfxDWriteFontFileLoader::CreateStreamFromKey(const void *fontFileReferenceKey, 
    1.15 +                                             UINT32 fontFileReferenceKeySize, 
    1.16 +                                             IDWriteFontFileStream **fontFileStream)
    1.17 +{
    1.18 +    if (!fontFileReferenceKey || !fontFileStream) {
    1.19 +        return E_POINTER;
    1.20 +    }
    1.21 +
    1.22 +    *fontFileStream = 
    1.23 +        new gfxDWriteFontFileStream(
    1.24 +        static_cast<const ffReferenceKey*>(fontFileReferenceKey)->mArray);
    1.25 +
    1.26 +    if (!*fontFileStream) {
    1.27 +        return E_OUTOFMEMORY;
    1.28 +    }
    1.29 +    (*fontFileStream)->AddRef();
    1.30 +    return S_OK;
    1.31 +}
    1.32 +
    1.33 +gfxDWriteFontFileStream::gfxDWriteFontFileStream(FallibleTArray<uint8_t> *aData)
    1.34 +{
    1.35 +    mData.SwapElements(*aData);
    1.36 +}
    1.37 +
    1.38 +gfxDWriteFontFileStream::~gfxDWriteFontFileStream()
    1.39 +{
    1.40 +}
    1.41 +
    1.42 +HRESULT STDMETHODCALLTYPE
    1.43 +gfxDWriteFontFileStream::GetFileSize(UINT64 *fileSize)
    1.44 +{
    1.45 +    *fileSize = mData.Length();
    1.46 +    return S_OK;
    1.47 +}
    1.48 +
    1.49 +HRESULT STDMETHODCALLTYPE
    1.50 +gfxDWriteFontFileStream::GetLastWriteTime(UINT64 *lastWriteTime)
    1.51 +{
    1.52 +    return E_NOTIMPL;
    1.53 +}
    1.54 +
    1.55 +HRESULT STDMETHODCALLTYPE
    1.56 +gfxDWriteFontFileStream::ReadFileFragment(const void **fragmentStart,
    1.57 +                                          UINT64 fileOffset,
    1.58 +                                          UINT64 fragmentSize,
    1.59 +                                          void **fragmentContext)
    1.60 +{
    1.61 +    // We are required to do bounds checking.
    1.62 +    if (fileOffset + fragmentSize > (UINT64)mData.Length()) {
    1.63 +        return E_FAIL;
    1.64 +    }
    1.65 +    // We should be alive for the duration of this.
    1.66 +    *fragmentStart = &mData[fileOffset];
    1.67 +    *fragmentContext = nullptr;
    1.68 +    return S_OK;
    1.69 +}
    1.70 +
    1.71 +void STDMETHODCALLTYPE
    1.72 +gfxDWriteFontFileStream::ReleaseFileFragment(void *fragmentContext)
    1.73 +{
    1.74 +}

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