143 lines
3.9 KiB
C
143 lines
3.9 KiB
C
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/***************************************************************************/
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/* */
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/* ftmisc.h */
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/* */
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/* Miscellaneous macros for stand-alone rasterizer (specification */
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/* only). */
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/* */
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/* Copyright 2005-2016 by */
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */
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/* */
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/* This file is part of the FreeType project, and may only be used */
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/* modified and distributed under the terms of the FreeType project */
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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/* this file you indicate that you have read the license and */
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/* understand and accept it fully. */
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/* */
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/***************************************************************************/
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/***************************************************/
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/* */
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/* This file is *not* portable! You have to adapt */
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/* its definitions to your platform. */
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/* */
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/***************************************************/
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#ifndef FTMISC_H_
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#define FTMISC_H_
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/* memset */
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#include FT_CONFIG_STANDARD_LIBRARY_H
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#define FT_BEGIN_HEADER
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#define FT_END_HEADER
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#define FT_LOCAL_DEF( x ) static x
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/* from include/freetype/fttypes.h */
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typedef unsigned char FT_Byte;
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typedef signed int FT_Int;
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typedef unsigned int FT_UInt;
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typedef signed long FT_Long;
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typedef unsigned long FT_ULong;
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typedef signed long FT_F26Dot6;
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typedef int FT_Error;
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#define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
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( ( (FT_ULong)_x1 << 24 ) | \
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( (FT_ULong)_x2 << 16 ) | \
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( (FT_ULong)_x3 << 8 ) | \
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(FT_ULong)_x4 )
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/* from include/freetype/ftsystem.h */
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typedef struct FT_MemoryRec_* FT_Memory;
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typedef void* (*FT_Alloc_Func)( FT_Memory memory,
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long size );
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typedef void (*FT_Free_Func)( FT_Memory memory,
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void* block );
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typedef void* (*FT_Realloc_Func)( FT_Memory memory,
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long cur_size,
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long new_size,
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void* block );
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typedef struct FT_MemoryRec_
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{
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void* user;
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FT_Alloc_Func alloc;
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FT_Free_Func free;
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FT_Realloc_Func realloc;
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} FT_MemoryRec;
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/* from src/ftcalc.c */
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#if ( defined _WIN32 || defined _WIN64 )
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typedef __int64 FT_Int64;
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#else
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#include "inttypes.h"
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typedef int64_t FT_Int64;
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#endif
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static FT_Long
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FT_MulDiv( FT_Long a,
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FT_Long b,
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FT_Long c )
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{
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FT_Int s;
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FT_Long d;
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s = 1;
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if ( a < 0 ) { a = -a; s = -1; }
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if ( b < 0 ) { b = -b; s = -s; }
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if ( c < 0 ) { c = -c; s = -s; }
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d = (FT_Long)( c > 0 ? ( (FT_Int64)a * b + ( c >> 1 ) ) / c
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: 0x7FFFFFFFL );
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return ( s > 0 ) ? d : -d;
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}
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static FT_Long
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FT_MulDiv_No_Round( FT_Long a,
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FT_Long b,
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FT_Long c )
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{
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FT_Int s;
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FT_Long d;
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s = 1;
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if ( a < 0 ) { a = -a; s = -1; }
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if ( b < 0 ) { b = -b; s = -s; }
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if ( c < 0 ) { c = -c; s = -s; }
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d = (FT_Long)( c > 0 ? (FT_Int64)a * b / c
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: 0x7FFFFFFFL );
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return ( s > 0 ) ? d : -d;
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}
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#endif /* FTMISC_H_ */
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/* END */
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