--- /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 */
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