blob: 20945582c064a0c05322f1f4e695b65fae237a10 [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stdint.h>
#include <string>
#include "content/common/content_export.h"
namespace content {
// Returns a file descriptor for a shared memory segment. The
// executable flag indicates that the caller intends to use mprotect
// with PROT_EXEC after making a mapping, but not that it intends to
// mmap with PROT_EXEC in the first place. (Some systems, such as
// ChromeOS, disallow PROT_EXEC in mmap on /dev/shm files but do allow
// PROT_EXEC in mprotect on mappings from such files. This function
// can yield an object that has that constraint.)
CONTENT_EXPORT int MakeSharedMemorySegmentViaIPC(size_t length,
bool executable);
// Return a read-only file descriptor to the font which best matches the given
// properties or -1 on failure.
// charset: specifies the language(s) that the font must cover. See
// for more information.
CONTENT_EXPORT int MatchFontWithFallback(const std::string& face, bool bold,
bool italic, int charset);
// GetFontTable loads a specified font table from an open SFNT file.
// fd: a file descriptor to the SFNT file. The position doesn't matter.
// table: the table in *big-endian* format, or 0 for the whole font file.
// output: a buffer of size output_length that gets the data. can be 0, in
// which case output_length will be set to the required size in bytes.
// output_length: size of output, if it's not 0.
// returns: true on success.
CONTENT_EXPORT bool GetFontTable(int fd, uint32_t table, uint8_t* output,
size_t* output_length);
}; // namespace content