+++ /dev/null
-/***************************************************************************/
-/* */
-/* 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 */
projects / rrdtool.git / blobdiff