ref: a3edbfa983ba609673bfbd8a35727d7c3524d25a
dir: /src/raster/ftmisc.h/
/**************************************************************************** * * ftmisc.h * * Miscellaneous macros for stand-alone rasterizer (specification * only). * * Copyright (C) 2005-2020 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used * modified and distributed under the terms of the FreeType project * license, LICENSE.TXT. By continuing to use, modify, or distribute * this file you indicate that you have read the license and * understand and accept it fully. * */ /**************************************************** * * This file is *not* portable! You have to adapt * its definitions to your platform. * */ #ifndef FTMISC_H_ #define FTMISC_H_ /* memset */ #include FT_CONFIG_STANDARD_LIBRARY_H #define FT_BEGIN_HEADER #define FT_END_HEADER #define FT_LOCAL_DEF( x ) static x /* from include/freetype/fttypes.h */ typedef unsigned char FT_Byte; typedef signed int FT_Int; typedef unsigned int FT_UInt; typedef signed long FT_Long; typedef unsigned long FT_ULong; typedef signed long FT_F26Dot6; typedef int FT_Error; #define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \ ( ( (FT_ULong)_x1 << 24 ) | \ ( (FT_ULong)_x2 << 16 ) | \ ( (FT_ULong)_x3 << 8 ) | \ (FT_ULong)_x4 ) /* from include/freetype/ftsystem.h */ typedef struct FT_MemoryRec_* FT_Memory; typedef void* (*FT_Alloc_Func)( FT_Memory memory, long size ); typedef void (*FT_Free_Func)( FT_Memory memory, void* block ); typedef void* (*FT_Realloc_Func)( FT_Memory memory, long cur_size, long new_size, void* block ); typedef struct FT_MemoryRec_ { void* user; FT_Alloc_Func alloc; FT_Free_Func free; FT_Realloc_Func realloc; } FT_MemoryRec; /* from src/ftcalc.c */ #if ( defined _WIN32 || defined _WIN64 ) typedef __int64 FT_Int64; #else #include "inttypes.h" typedef int64_t FT_Int64; #endif static FT_Long FT_MulDiv( FT_Long a, FT_Long b, FT_Long c ) { FT_Int s; FT_Long d; s = 1; if ( a < 0 ) { a = -a; s = -1; } if ( b < 0 ) { b = -b; s = -s; } if ( c < 0 ) { c = -c; s = -s; } d = (FT_Long)( c > 0 ? ( (FT_Int64)a * b + ( c >> 1 ) ) / c : 0x7FFFFFFFL ); return ( s > 0 ) ? d : -d; } static FT_Long FT_MulDiv_No_Round( FT_Long a, FT_Long b, FT_Long c ) { FT_Int s; FT_Long d; s = 1; if ( a < 0 ) { a = -a; s = -1; } if ( b < 0 ) { b = -b; s = -s; } if ( c < 0 ) { c = -c; s = -s; } d = (FT_Long)( c > 0 ? (FT_Int64)a * b / c : 0x7FFFFFFFL ); return ( s > 0 ) ? d : -d; } #endif /* FTMISC_H_ */ /* END */