michael@0: /*  GRAPHITE2 LICENSING
michael@0: 
michael@0:     Copyright 2010, SIL International
michael@0:     All rights reserved.
michael@0: 
michael@0:     This library is free software; you can redistribute it and/or modify
michael@0:     it under the terms of the GNU Lesser General Public License as published
michael@0:     by the Free Software Foundation; either version 2.1 of License, or
michael@0:     (at your option) any later version.
michael@0: 
michael@0:     This program is distributed in the hope that it will be useful,
michael@0:     but WITHOUT ANY WARRANTY; without even the implied warranty of
michael@0:     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
michael@0:     Lesser General Public License for more details.
michael@0: 
michael@0:     You should also have received a copy of the GNU Lesser General Public
michael@0:     License along with this library in the file named "LICENSE".
michael@0:     If not, write to the Free Software Foundation, 51 Franklin Street, 
michael@0:     Suite 500, Boston, MA 02110-1335, USA or visit their web page on the 
michael@0:     internet at http://www.fsf.org/licenses/lgpl.html.
michael@0: 
michael@0: Alternatively, the contents of this file may be used under the terms of the
michael@0: Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
michael@0: License, as published by the Free Software Foundation, either version 2
michael@0: of the License or (at your option) any later version.
michael@0: */
michael@0: #pragma once
michael@0: 
michael@0: #include <cstdlib>
michael@0: #include "graphite2/Types.h"
michael@0: 
michael@0: #ifdef GRAPHITE2_CUSTOM_HEADER
michael@0: #include GRAPHITE2_CUSTOM_HEADER
michael@0: #endif
michael@0: 
michael@0: namespace graphite2 {
michael@0: 
michael@0: typedef gr_uint8        uint8;
michael@0: typedef gr_uint8        byte;
michael@0: typedef gr_uint16       uint16;
michael@0: typedef gr_uint32       uint32;
michael@0: typedef gr_int8         int8;
michael@0: typedef gr_int16        int16;
michael@0: typedef gr_int32        int32;
michael@0: typedef size_t          uintptr;
michael@0: 
michael@0: #ifdef GRAPHITE2_TELEMETRY
michael@0: struct telemetry
michael@0: {
michael@0:     class category;
michael@0: 
michael@0:     static size_t   * _category;
michael@0:     static void set_category(size_t & t) throw()    { _category = &t; }
michael@0:     static void stop() throw()                      { _category = 0; }
michael@0:     static void count_bytes(size_t n) throw()       { if (_category) *_category += n; }
michael@0: 
michael@0:     size_t  misc,
michael@0:             silf,
michael@0:             glyph,
michael@0:             code,
michael@0:             states,
michael@0:             starts,
michael@0:             transitions;
michael@0: 
michael@0:     telemetry() : misc(0), silf(0), glyph(0), code(0), states(0), starts(0), transitions(0) {}
michael@0: };
michael@0: 
michael@0: class telemetry::category
michael@0: {
michael@0:     size_t * _prev;
michael@0: public:
michael@0:     category(size_t & t) : _prev(_category) { _category = &t; }
michael@0:     ~category() { _category = _prev; }
michael@0: };
michael@0: 
michael@0: #else
michael@0: struct telemetry  {};
michael@0: #endif
michael@0: 
michael@0: // typesafe wrapper around malloc for simple types
michael@0: // use free(pointer) to deallocate
michael@0: 
michael@0: template <typename T> T * gralloc(size_t n)
michael@0: {
michael@0: #ifdef GRAPHITE2_TELEMETRY
michael@0:     telemetry::count_bytes(sizeof(T) * n);
michael@0: #endif
michael@0:     return reinterpret_cast<T*>(malloc(sizeof(T) * n));
michael@0: }
michael@0: 
michael@0: template <typename T> T * grzeroalloc(size_t n)
michael@0: {
michael@0: #ifdef GRAPHITE2_TELEMETRY
michael@0:     telemetry::count_bytes(sizeof(T) * n);
michael@0: #endif
michael@0:     return reinterpret_cast<T*>(calloc(n, sizeof(T)));
michael@0: }
michael@0: 
michael@0: template <typename T>
michael@0: inline T min(const T a, const T b)
michael@0: {
michael@0:     return a < b ? a : b;
michael@0: }
michael@0: 
michael@0: template <typename T>
michael@0: inline T max(const T a, const T b)
michael@0: {
michael@0:     return a > b ? a : b;
michael@0: }
michael@0: 
michael@0: } // namespace graphite2
michael@0: 
michael@0: #define CLASS_NEW_DELETE \
michael@0:     void * operator new   (size_t size){ return gralloc<byte>(size);} \
michael@0:     void * operator new   (size_t, void * p) throw() { return p; } \
michael@0:     void * operator new[] (size_t size) {return gralloc<byte>(size);} \
michael@0:     void * operator new[] (size_t, void * p) throw() { return p; } \
michael@0:     void operator delete   (void * p) throw() { free(p);} \
michael@0:     void operator delete   (void *, void *) throw() {} \
michael@0:     void operator delete[] (void * p)throw() { free(p); } \
michael@0:     void operator delete[] (void *, void *) throw() {}
michael@0: 
michael@0: #ifdef __GNUC__
michael@0: #define GR_MAYBE_UNUSED __attribute__((unused))
michael@0: #else
michael@0: #define GR_MAYBE_UNUSED
michael@0: #endif