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annotate freetype2/freetype/ftbbox.h @ 1963:6988e5478a8c draft

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fix CudaScheduler
author Shohei KOKUBO <e105744@ie.u-ryukyu.ac.jp>
date Wed, 12 Feb 2014 17:56:40 +0900
parents a8ab91f49cac
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /***************************************************************************/
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2 /* */
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3 /* ftbbox.h */
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4 /* */
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5 /* FreeType exact bbox computation (specification). */
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6 /* */
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7 /* Copyright 1996-2001, 2003, 2007, 2011 by */
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8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */
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9 /* */
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10 /* This file is part of the FreeType project, and may only be used, */
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11 /* modified, and distributed under the terms of the FreeType project */
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12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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13 /* this file you indicate that you have read the license and */
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14 /* understand and accept it fully. */
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15 /* */
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16 /***************************************************************************/
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19 /*************************************************************************/
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20 /* */
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21 /* This component has a _single_ role: to compute exact outline bounding */
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22 /* boxes. */
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23 /* */
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24 /* It is separated from the rest of the engine for various technical */
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25 /* reasons. It may well be integrated in `ftoutln' later. */
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26 /* */
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27 /*************************************************************************/
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29
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30 #ifndef __FTBBOX_H__
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31 #define __FTBBOX_H__
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34 #include <ft2build.h>
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35 #include FT_FREETYPE_H
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36
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37 #ifdef FREETYPE_H
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38 #error "freetype.h of FreeType 1 has been loaded!"
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39 #error "Please fix the directory search order for header files"
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40 #error "so that freetype.h of FreeType 2 is found first."
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41 #endif
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43
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44 FT_BEGIN_HEADER
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45
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46
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47 /*************************************************************************/
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48 /* */
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49 /* <Section> */
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50 /* outline_processing */
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51 /* */
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52 /*************************************************************************/
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53
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54
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55 /*************************************************************************/
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56 /* */
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57 /* <Function> */
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58 /* FT_Outline_Get_BBox */
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59 /* */
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60 /* <Description> */
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61 /* Compute the exact bounding box of an outline. This is slower */
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62 /* than computing the control box. However, it uses an advanced */
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63 /* algorithm which returns _very_ quickly when the two boxes */
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64 /* coincide. Otherwise, the outline Bézier arcs are traversed to */
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65 /* extract their extrema. */
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66 /* */
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67 /* <Input> */
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68 /* outline :: A pointer to the source outline. */
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69 /* */
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70 /* <Output> */
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71 /* abbox :: The outline's exact bounding box. */
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72 /* */
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73 /* <Return> */
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74 /* FreeType error code. 0~means success. */
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75 /* */
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76 /* <Note> */
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77 /* If the font is tricky and the glyph has been loaded with */
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78 /* @FT_LOAD_NO_SCALE, the resulting BBox is meaningless. To get */
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79 /* reasonable values for the BBox it is necessary to load the glyph */
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80 /* at a large ppem value (so that the hinting instructions can */
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81 /* properly shift and scale the subglyphs), then extracting the BBox */
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82 /* which can be eventually converted back to font units. */
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83 /* */
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84 FT_EXPORT( FT_Error )
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85 FT_Outline_Get_BBox( FT_Outline* outline,
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86 FT_BBox *abbox );
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87
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88
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89 /* */
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90
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91
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92 FT_END_HEADER
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93
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94 #endif /* __FTBBOX_H__ */
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95
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96
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97 /* END */
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98
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99
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100 /* Local Variables: */
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101 /* coding: utf-8 */
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102 /* End: */