kc3-lang/freetype/include/freetype/ftrender.h
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Hash : 415235df
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Date : 2001-06-28T17:49:10
finishing function header formatting updating copyrights
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include/freetype/ftrender.h
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/***************************************************************************/ /* */ /* ftrender.h */ /* */ /* FreeType renderer modules public interface (specification). */ /* */ /* Copyright 1996-2001 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. */ /* */ /***************************************************************************/ #ifndef __FTRENDER_H__ #define __FTRENDER_H__ #include <ft2build.h> #include FT_MODULE_H #include FT_GLYPH_H FT_BEGIN_HEADER /*************************************************************************/ /* */ /* <Section> */ /* module_management */ /* */ /*************************************************************************/ /* create a new glyph object */ typedef FT_Error (*FT_Glyph_Init_Func)( FT_Glyph glyph, FT_GlyphSlot slot ); /* destroys a given glyph object */ typedef void (*FT_Glyph_Done_Func)( FT_Glyph glyph ); typedef void (*FT_Glyph_Transform_Func)( FT_Glyph glyph, FT_Matrix* matrix, FT_Vector* delta ); typedef void (*FT_Glyph_BBox_Func)( FT_Glyph glyph, FT_BBox* abbox ); typedef FT_Error (*FT_Glyph_Copy_Func)( FT_Glyph source, FT_Glyph target ); typedef FT_Error (*FT_Glyph_Prepare_Func)( FT_Glyph glyph, FT_GlyphSlot slot ); struct FT_Glyph_Class_ { FT_UInt glyph_size; FT_Glyph_Format glyph_format; FT_Glyph_Init_Func glyph_init; FT_Glyph_Done_Func glyph_done; FT_Glyph_Copy_Func glyph_copy; FT_Glyph_Transform_Func glyph_transform; FT_Glyph_BBox_Func glyph_bbox; FT_Glyph_Prepare_Func glyph_prepare; }; typedef FT_Error (*FTRenderer_render)( FT_Renderer renderer, FT_GlyphSlot slot, FT_UInt mode, FT_Vector* origin ); typedef FT_Error (*FTRenderer_transform)( FT_Renderer renderer, FT_GlyphSlot slot, FT_Matrix* matrix, FT_Vector* delta ); typedef void (*FTRenderer_getCBox)( FT_Renderer renderer, FT_GlyphSlot slot, FT_BBox* cbox ); typedef FT_Error (*FTRenderer_setMode)( FT_Renderer renderer, FT_ULong mode_tag, FT_Pointer mode_ptr ); /*************************************************************************/ /* */ /* <Struct> */ /* FT_Renderer_Class */ /* */ /* <Description> */ /* The renderer module class descriptor. */ /* */ /* <Fields> */ /* root :: The root FT_Module_Class fields. */ /* */ /* glyph_format :: The glyph image format this renderer handles. */ /* */ /* render_glyph :: A method used to render the image that is in a */ /* given glyph slot into a bitmap. */ /* */ /* set_mode :: A method used to pass additional parameters. */ /* */ /* raster_class :: For `ft_glyph_format_outline' renderers only, this */ /* is a pointer to its raster's class. */ /* */ /* raster :: For `ft_glyph_format_outline' renderers only. this */ /* is a pointer to the corresponding raster object, */ /* if any. */ /* */ typedef struct FT_Renderer_Class_ { FT_Module_Class root; FT_Glyph_Format glyph_format; FTRenderer_render render_glyph; FTRenderer_transform transform_glyph; FTRenderer_getCBox get_glyph_cbox; FTRenderer_setMode set_mode; FT_Raster_Funcs* raster_class; } FT_Renderer_Class; /*************************************************************************/ /* */ /* <Function> */ /* FT_Get_Renderer */ /* */ /* <Description> */ /* Retrieves the current renderer for a given glyph format. */ /* */ /* <Input> */ /* library :: A handle to the library object. */ /* */ /* format :: The glyph format. */ /* */ /* <Return> */ /* A renderer handle. 0 if none found. */ /* */ /* <Note> */ /* An error will be returned if a module already exists by that name, */ /* or if the module requires a version of FreeType that is too great. */ /* */ /* To add a new renderer, simply use FT_Add_Module(). To retrieve a */ /* renderer by its name, use FT_Get_Module(). */ /* */ FT_EXPORT( FT_Renderer ) FT_Get_Renderer( FT_Library library, FT_Glyph_Format format ); /*************************************************************************/ /* */ /* <Function> */ /* FT_Set_Renderer */ /* */ /* <Description> */ /* Sets the current renderer to use, and set additional mode. */ /* */ /* <InOut> */ /* library :: A handle to the library object. */ /* */ /* <Input> */ /* renderer :: A handle to the renderer object. */ /* */ /* num_params :: The number of additional parameters. */ /* */ /* parameters :: Additional parameters. */ /* */ /* <Return> */ /* FreeType error code. 0 means success. */ /* */ /* <Note> */ /* In case of success, the renderer will be used to convert glyph */ /* images in the renderer's known format into bitmaps. */ /* */ /* This doesn't change the current renderer for other formats. */ /* */ FT_EXPORT( FT_Error ) FT_Set_Renderer( FT_Library library, FT_Renderer renderer, FT_UInt num_params, FT_Parameter* parameters ); /* */ FT_END_HEADER #endif /* __FTRENDER_H__ */ /* END */