hb-common.h revision acdba3f90b232fc12fcb200dca2584481b339118
1/* 2 * Copyright (C) 2007,2008,2009 Red Hat, Inc. 3 * 4 * This is part of HarfBuzz, a text shaping library. 5 * 6 * Permission is hereby granted, without written agreement and without 7 * license or royalty fees, to use, copy, modify, and distribute this 8 * software and its documentation for any purpose, provided that the 9 * above copyright notice and the following two paragraphs appear in 10 * all copies of this software. 11 * 12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR 13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES 14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN 15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH 16 * DAMAGE. 17 * 18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, 19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS 21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO 22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. 23 * 24 * Red Hat Author(s): Behdad Esfahbod 25 */ 26 27#ifndef HB_COMMON_H 28#define HB_COMMON_H 29 30# ifdef __cplusplus 31# define HB_BEGIN_DECLS extern "C" { 32# define HB_END_DECLS } 33# else /* !__cplusplus */ 34# define HB_BEGIN_DECLS 35# define HB_END_DECLS 36# endif /* !__cplusplus */ 37 38HB_BEGIN_DECLS 39 40 41#ifdef _MSC_VER 42#define _HB__STR2__(x) #x 43#define _HB__STR1__(x) _HB__STR2__(x) 44#define _HB__LOC__ __FILE__ "("_HB__STR1__(__LINE__)") : Warning Msg: " 45#pragma message(_HB__LOC__"Not using stdint.h; integer types may have wrong size") 46typedef signed char int8_t; 47typedef unsigned char uint8_t; 48typedef signed short int16_t; 49typedef unsigned short uint16_t; 50typedef signed int int32_t; 51typedef unsigned int uint32_t; 52typedef signed long long int64_t; 53typedef unsigned long long uint64_t; 54#ifndef __cplusplus 55#define inline __inline 56#endif 57#else 58#include <stdint.h> 59#endif 60 61typedef int hb_bool_t; 62 63typedef uint32_t hb_tag_t; 64#define HB_TAG(a,b,c,d) ((hb_tag_t)(((uint8_t)a<<24)|((uint8_t)b<<16)|((uint8_t)c<<8)|(uint8_t)d)) 65#define HB_TAG_STR(s) (HB_TAG(((const char *) s)[0], \ 66 ((const char *) s)[1], \ 67 ((const char *) s)[2], \ 68 ((const char *) s)[3])) 69#define HB_TAG_NONE HB_TAG(0,0,0,0) 70 71hb_tag_t hb_tag_from_string (const char *s); 72 73 74typedef uint32_t hb_codepoint_t; 75typedef int32_t hb_position_t; 76typedef uint32_t hb_mask_t; 77 78typedef void (*hb_destroy_func_t) (void *user_data); 79 80typedef enum _hb_direction_t { 81 HB_DIRECTION_LTR, 82 HB_DIRECTION_RTL, 83 HB_DIRECTION_TTB, 84 HB_DIRECTION_BTT 85} hb_direction_t; 86 87#define HB_DIRECTION_IS_HORIZONTAL(dir) ((((unsigned int) (dir)) & ~1U) == 0) 88#define HB_DIRECTION_IS_VERTICAL(dir) ((((unsigned int) (dir)) & ~1U) == 2) 89#define HB_DIRECTION_IS_FORWARD(dir) ((((unsigned int) (dir)) & ~2U) == 0) 90#define HB_DIRECTION_IS_BACKWARD(dir) ((((unsigned int) (dir)) & ~2U) == 1) 91#define HB_DIRECTION_REVERSE(dir) ((hb_direction_t) (((unsigned int) (dir)) ^ 1)) 92 93 94HB_END_DECLS 95 96#endif /* HB_COMMON_H */ 97