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annotate libs/ft2static/freetype/ftrender.h @ 0:b2f14e535253

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author John Tsiombikas <nuclear@member.fsf.org>
date Sat, 01 Feb 2014 19:58:19 +0200
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nuclear@0 1 /***************************************************************************/
nuclear@0 2 /* */
nuclear@0 3 /* ftrender.h */
nuclear@0 4 /* */
nuclear@0 5 /* FreeType renderer modules public interface (specification). */
nuclear@0 6 /* */
nuclear@0 7 /* Copyright 1996-2001, 2005, 2006, 2010 by */
nuclear@0 8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */
nuclear@0 9 /* */
nuclear@0 10 /* This file is part of the FreeType project, and may only be used, */
nuclear@0 11 /* modified, and distributed under the terms of the FreeType project */
nuclear@0 12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */
nuclear@0 13 /* this file you indicate that you have read the license and */
nuclear@0 14 /* understand and accept it fully. */
nuclear@0 15 /* */
nuclear@0 16 /***************************************************************************/
nuclear@0 17
nuclear@0 18
nuclear@0 19 #ifndef __FTRENDER_H__
nuclear@0 20 #define __FTRENDER_H__
nuclear@0 21
nuclear@0 22
nuclear@0 23 #include <ft2build.h>
nuclear@0 24 #include FT_MODULE_H
nuclear@0 25 #include FT_GLYPH_H
nuclear@0 26
nuclear@0 27
nuclear@0 28 FT_BEGIN_HEADER
nuclear@0 29
nuclear@0 30
nuclear@0 31 /*************************************************************************/
nuclear@0 32 /* */
nuclear@0 33 /* <Section> */
nuclear@0 34 /* module_management */
nuclear@0 35 /* */
nuclear@0 36 /*************************************************************************/
nuclear@0 37
nuclear@0 38
nuclear@0 39 /* create a new glyph object */
nuclear@0 40 typedef FT_Error
nuclear@0 41 (*FT_Glyph_InitFunc)( FT_Glyph glyph,
nuclear@0 42 FT_GlyphSlot slot );
nuclear@0 43
nuclear@0 44 /* destroys a given glyph object */
nuclear@0 45 typedef void
nuclear@0 46 (*FT_Glyph_DoneFunc)( FT_Glyph glyph );
nuclear@0 47
nuclear@0 48 typedef void
nuclear@0 49 (*FT_Glyph_TransformFunc)( FT_Glyph glyph,
nuclear@0 50 const FT_Matrix* matrix,
nuclear@0 51 const FT_Vector* delta );
nuclear@0 52
nuclear@0 53 typedef void
nuclear@0 54 (*FT_Glyph_GetBBoxFunc)( FT_Glyph glyph,
nuclear@0 55 FT_BBox* abbox );
nuclear@0 56
nuclear@0 57 typedef FT_Error
nuclear@0 58 (*FT_Glyph_CopyFunc)( FT_Glyph source,
nuclear@0 59 FT_Glyph target );
nuclear@0 60
nuclear@0 61 typedef FT_Error
nuclear@0 62 (*FT_Glyph_PrepareFunc)( FT_Glyph glyph,
nuclear@0 63 FT_GlyphSlot slot );
nuclear@0 64
nuclear@0 65 /* deprecated */
nuclear@0 66 #define FT_Glyph_Init_Func FT_Glyph_InitFunc
nuclear@0 67 #define FT_Glyph_Done_Func FT_Glyph_DoneFunc
nuclear@0 68 #define FT_Glyph_Transform_Func FT_Glyph_TransformFunc
nuclear@0 69 #define FT_Glyph_BBox_Func FT_Glyph_GetBBoxFunc
nuclear@0 70 #define FT_Glyph_Copy_Func FT_Glyph_CopyFunc
nuclear@0 71 #define FT_Glyph_Prepare_Func FT_Glyph_PrepareFunc
nuclear@0 72
nuclear@0 73
nuclear@0 74 struct FT_Glyph_Class_
nuclear@0 75 {
nuclear@0 76 FT_Long glyph_size;
nuclear@0 77 FT_Glyph_Format glyph_format;
nuclear@0 78 FT_Glyph_InitFunc glyph_init;
nuclear@0 79 FT_Glyph_DoneFunc glyph_done;
nuclear@0 80 FT_Glyph_CopyFunc glyph_copy;
nuclear@0 81 FT_Glyph_TransformFunc glyph_transform;
nuclear@0 82 FT_Glyph_GetBBoxFunc glyph_bbox;
nuclear@0 83 FT_Glyph_PrepareFunc glyph_prepare;
nuclear@0 84 };
nuclear@0 85
nuclear@0 86
nuclear@0 87 typedef FT_Error
nuclear@0 88 (*FT_Renderer_RenderFunc)( FT_Renderer renderer,
nuclear@0 89 FT_GlyphSlot slot,
nuclear@0 90 FT_UInt mode,
nuclear@0 91 const FT_Vector* origin );
nuclear@0 92
nuclear@0 93 typedef FT_Error
nuclear@0 94 (*FT_Renderer_TransformFunc)( FT_Renderer renderer,
nuclear@0 95 FT_GlyphSlot slot,
nuclear@0 96 const FT_Matrix* matrix,
nuclear@0 97 const FT_Vector* delta );
nuclear@0 98
nuclear@0 99
nuclear@0 100 typedef void
nuclear@0 101 (*FT_Renderer_GetCBoxFunc)( FT_Renderer renderer,
nuclear@0 102 FT_GlyphSlot slot,
nuclear@0 103 FT_BBox* cbox );
nuclear@0 104
nuclear@0 105
nuclear@0 106 typedef FT_Error
nuclear@0 107 (*FT_Renderer_SetModeFunc)( FT_Renderer renderer,
nuclear@0 108 FT_ULong mode_tag,
nuclear@0 109 FT_Pointer mode_ptr );
nuclear@0 110
nuclear@0 111 /* deprecated identifiers */
nuclear@0 112 #define FTRenderer_render FT_Renderer_RenderFunc
nuclear@0 113 #define FTRenderer_transform FT_Renderer_TransformFunc
nuclear@0 114 #define FTRenderer_getCBox FT_Renderer_GetCBoxFunc
nuclear@0 115 #define FTRenderer_setMode FT_Renderer_SetModeFunc
nuclear@0 116
nuclear@0 117
nuclear@0 118 /*************************************************************************/
nuclear@0 119 /* */
nuclear@0 120 /* <Struct> */
nuclear@0 121 /* FT_Renderer_Class */
nuclear@0 122 /* */
nuclear@0 123 /* <Description> */
nuclear@0 124 /* The renderer module class descriptor. */
nuclear@0 125 /* */
nuclear@0 126 /* <Fields> */
nuclear@0 127 /* root :: The root @FT_Module_Class fields. */
nuclear@0 128 /* */
nuclear@0 129 /* glyph_format :: The glyph image format this renderer handles. */
nuclear@0 130 /* */
nuclear@0 131 /* render_glyph :: A method used to render the image that is in a */
nuclear@0 132 /* given glyph slot into a bitmap. */
nuclear@0 133 /* */
nuclear@0 134 /* transform_glyph :: A method used to transform the image that is in */
nuclear@0 135 /* a given glyph slot. */
nuclear@0 136 /* */
nuclear@0 137 /* get_glyph_cbox :: A method used to access the glyph's cbox. */
nuclear@0 138 /* */
nuclear@0 139 /* set_mode :: A method used to pass additional parameters. */
nuclear@0 140 /* */
nuclear@0 141 /* raster_class :: For @FT_GLYPH_FORMAT_OUTLINE renderers only. */
nuclear@0 142 /* This is a pointer to its raster's class. */
nuclear@0 143 /* */
nuclear@0 144 typedef struct FT_Renderer_Class_
nuclear@0 145 {
nuclear@0 146 FT_Module_Class root;
nuclear@0 147
nuclear@0 148 FT_Glyph_Format glyph_format;
nuclear@0 149
nuclear@0 150 FT_Renderer_RenderFunc render_glyph;
nuclear@0 151 FT_Renderer_TransformFunc transform_glyph;
nuclear@0 152 FT_Renderer_GetCBoxFunc get_glyph_cbox;
nuclear@0 153 FT_Renderer_SetModeFunc set_mode;
nuclear@0 154
nuclear@0 155 FT_Raster_Funcs* raster_class;
nuclear@0 156
nuclear@0 157 } FT_Renderer_Class;
nuclear@0 158
nuclear@0 159
nuclear@0 160 /*************************************************************************/
nuclear@0 161 /* */
nuclear@0 162 /* <Function> */
nuclear@0 163 /* FT_Get_Renderer */
nuclear@0 164 /* */
nuclear@0 165 /* <Description> */
nuclear@0 166 /* Retrieve the current renderer for a given glyph format. */
nuclear@0 167 /* */
nuclear@0 168 /* <Input> */
nuclear@0 169 /* library :: A handle to the library object. */
nuclear@0 170 /* */
nuclear@0 171 /* format :: The glyph format. */
nuclear@0 172 /* */
nuclear@0 173 /* <Return> */
nuclear@0 174 /* A renderer handle. 0~if none found. */
nuclear@0 175 /* */
nuclear@0 176 /* <Note> */
nuclear@0 177 /* An error will be returned if a module already exists by that name, */
nuclear@0 178 /* or if the module requires a version of FreeType that is too great. */
nuclear@0 179 /* */
nuclear@0 180 /* To add a new renderer, simply use @FT_Add_Module. To retrieve a */
nuclear@0 181 /* renderer by its name, use @FT_Get_Module. */
nuclear@0 182 /* */
nuclear@0 183 FT_EXPORT( FT_Renderer )
nuclear@0 184 FT_Get_Renderer( FT_Library library,
nuclear@0 185 FT_Glyph_Format format );
nuclear@0 186
nuclear@0 187
nuclear@0 188 /*************************************************************************/
nuclear@0 189 /* */
nuclear@0 190 /* <Function> */
nuclear@0 191 /* FT_Set_Renderer */
nuclear@0 192 /* */
nuclear@0 193 /* <Description> */
nuclear@0 194 /* Set the current renderer to use, and set additional mode. */
nuclear@0 195 /* */
nuclear@0 196 /* <InOut> */
nuclear@0 197 /* library :: A handle to the library object. */
nuclear@0 198 /* */
nuclear@0 199 /* <Input> */
nuclear@0 200 /* renderer :: A handle to the renderer object. */
nuclear@0 201 /* */
nuclear@0 202 /* num_params :: The number of additional parameters. */
nuclear@0 203 /* */
nuclear@0 204 /* parameters :: Additional parameters. */
nuclear@0 205 /* */
nuclear@0 206 /* <Return> */
nuclear@0 207 /* FreeType error code. 0~means success. */
nuclear@0 208 /* */
nuclear@0 209 /* <Note> */
nuclear@0 210 /* In case of success, the renderer will be used to convert glyph */
nuclear@0 211 /* images in the renderer's known format into bitmaps. */
nuclear@0 212 /* */
nuclear@0 213 /* This doesn't change the current renderer for other formats. */
nuclear@0 214 /* */
nuclear@0 215 FT_EXPORT( FT_Error )
nuclear@0 216 FT_Set_Renderer( FT_Library library,
nuclear@0 217 FT_Renderer renderer,
nuclear@0 218 FT_UInt num_params,
nuclear@0 219 FT_Parameter* parameters );
nuclear@0 220
nuclear@0 221
nuclear@0 222 /* */
nuclear@0 223
nuclear@0 224
nuclear@0 225 FT_END_HEADER
nuclear@0 226
nuclear@0 227 #endif /* __FTRENDER_H__ */
nuclear@0 228
nuclear@0 229
nuclear@0 230 /* END */