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gfx/skia/trunk/src/utils/win/SkDWriteFontFileStream.h@129ffea94266 (annotated)

gfx/skia/trunk/src/utils/win/SkDWriteFontFileStream.h

Sat, 03 Jan 2015 20:18:00 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Sat, 03 Jan 2015 20:18:00 +0100

branch

TOR_BUG_3246

changeset 7

129ffea94266

permissions

-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

michael@0	1	/*
michael@0	2	* Copyright 2012 Google Inc.
michael@0	3	*
michael@0	4	* Use of this source code is governed by a BSD-style license that can be
michael@0	5	* found in the LICENSE file.
michael@0	6	*/
michael@0	7
michael@0	8	#ifndef SkDWriteFontFileStream_DEFINED
michael@0	9	#define SkDWriteFontFileStream_DEFINED
michael@0	10
michael@0	11	#include "SkTypes.h"
michael@0	12
michael@0	13	#include "SkStream.h"
michael@0	14	#include "SkTScopedComPtr.h"
michael@0	15
michael@0	16	#include <dwrite.h>
michael@0	17
michael@0	18	/**
michael@0	19	* An SkStream backed by an IDWriteFontFileStream.
michael@0	20	* This allows Skia code to read an IDWriteFontFileStream.
michael@0	21	*/
michael@0	22	class SkDWriteFontFileStream : public SkStreamMemory {
michael@0	23	public:
michael@0	24	explicit SkDWriteFontFileStream(IDWriteFontFileStream* fontFileStream);
michael@0	25	virtual ~SkDWriteFontFileStream();
michael@0	26
michael@0	27	virtual size_t read(void* buffer, size_t size) SK_OVERRIDE;
michael@0	28	virtual bool isAtEnd() const SK_OVERRIDE;
michael@0	29	virtual bool rewind() SK_OVERRIDE;
michael@0	30	virtual SkDWriteFontFileStream* duplicate() const SK_OVERRIDE;
michael@0	31	virtual size_t getPosition() const SK_OVERRIDE;
michael@0	32	virtual bool seek(size_t position) SK_OVERRIDE;
michael@0	33	virtual bool move(long offset) SK_OVERRIDE;
michael@0	34	virtual SkDWriteFontFileStream* fork() const SK_OVERRIDE;
michael@0	35	virtual size_t getLength() const SK_OVERRIDE;
michael@0	36	virtual const void* getMemoryBase() SK_OVERRIDE;
michael@0	37
michael@0	38	private:
michael@0	39	SkTScopedComPtr<IDWriteFontFileStream> fFontFileStream;
michael@0	40	size_t fPos;
michael@0	41	const void* fLockedMemory;
michael@0	42	void* fFragmentLock;
michael@0	43	};
michael@0	44
michael@0	45	/**
michael@0	46	* An IDWriteFontFileStream backed by an SkStream.
michael@0	47	* This allows DirectWrite to read an SkStream.
michael@0	48	*/
michael@0	49	class SkDWriteFontFileStreamWrapper : public IDWriteFontFileStream {
michael@0	50	public:
michael@0	51	// IUnknown methods
michael@0	52	virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, void** ppvObject);
michael@0	53	virtual ULONG STDMETHODCALLTYPE AddRef();
michael@0	54	virtual ULONG STDMETHODCALLTYPE Release();
michael@0	55
michael@0	56	// IDWriteFontFileStream methods
michael@0	57	virtual HRESULT STDMETHODCALLTYPE ReadFileFragment(
michael@0	58	void const** fragmentStart,
michael@0	59	UINT64 fileOffset,
michael@0	60	UINT64 fragmentSize,
michael@0	61	void** fragmentContext);
michael@0	62
michael@0	63	virtual void STDMETHODCALLTYPE ReleaseFileFragment(void* fragmentContext);
michael@0	64	virtual HRESULT STDMETHODCALLTYPE GetFileSize(UINT64* fileSize);
michael@0	65	virtual HRESULT STDMETHODCALLTYPE GetLastWriteTime(UINT64* lastWriteTime);
michael@0	66
michael@0	67	static HRESULT Create(SkStream* stream, SkDWriteFontFileStreamWrapper** streamFontFileStream);
michael@0	68
michael@0	69	private:
michael@0	70	explicit SkDWriteFontFileStreamWrapper(SkStream* stream);
michael@0	71
michael@0	72	ULONG fRefCount;
michael@0	73	SkAutoTUnref<SkStream> fStream;
michael@0	74	SkMutex fStreamMutex;
michael@0	75	};
michael@0	76	#endif