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/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkFontStream_DEFINED
#define SkFontStream_DEFINED
class SkStream;
#include "SkTypeface.h"
class SkFontStream {
public:
/**
* Return the number of shared directories inside a TTC sfnt, or return 1
* if the stream is a normal sfnt (ttf). If there is an error or
* no directory is found, return 0.
*
* Note: the stream is rewound initially, but is returned at an arbitrary
* read offset.
*/
static int CountTTCEntries(SkStream*);
/**
* @param ttcIndex 0 for normal sfnts, or the index within a TTC sfnt.
*
* Note: the stream is rewound initially, but is returned at an arbitrary
* read offset.
*/
static int GetTableTags(SkStream*, int ttcIndex, SkFontTableTag tags[]);
/**
* @param ttcIndex 0 for normal sfnts, or the index within a TTC sfnt.
*
* Note: the stream is rewound initially, but is returned at an arbitrary
* read offset.
*/
static size_t GetTableData(SkStream*, int ttcIndex, SkFontTableTag tag,
size_t offset, size_t length, void* data);
static size_t GetTableSize(SkStream* stream, int ttcIndex, SkFontTableTag tag) {
return GetTableData(stream, ttcIndex, tag, 0, ~0U, NULL);
}
};
#endif
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