shithub: freetype+ttf2subf

Download patch

ref: db5285a0423b6cc5ec9d7ac010aecb877ac229da
parent: fbeb41d93d84b6f6dfa2ec8a8b43bafe0fe7696c
author: David Turner <[email protected]>
date: Sat Jul 1 21:27:32 EDT 2000

added missing file

git/fs: mount .git/fs: mount/attach disallowed
--- /dev/null
+++ b/include/freetype/ftoutln.h
@@ -1,0 +1,312 @@
+/***************************************************************************/
+/*                                                                         */
+/*  ftoutln.h                                                              */
+/*                                                                         */
+/*    Support for the FT_Outline type (used to store glyph shapes of       */
+/*    most scalable font formats)                                          */
+/*                                                                         */
+/*  Copyright 1996-2000 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 FTOUTLN_H
+#define FTOUTLN_H
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    FT_Outline_Decompose                                               */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Walks over an outline's structure to decompose it into individual  */
+  /*    segments and Bezier arcs.  This function is also able to emit      */
+  /*    `move to' and `close to' operations to indicate the start and end  */
+  /*    of new contours in the outline.                                    */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    outline   :: A pointer to the source target.                       */
+  /*                                                                       */
+  /*    funcs     :: A table of `emitters', i.e,. function pointers called */
+  /*                 during decomposition to indicate path operations.     */
+  /*                                                                       */
+  /*    user      :: A typeless pointer which is passed to each emitter    */
+  /*                 during the decomposition.  It can be used to store    */
+  /*                 the state during the decomposition.                   */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    FreeType error code.  0 means sucess.                              */
+  /*                                                                       */
+  FT_EXPORT_DEF(FT_Error)  FT_Outline_Decompose( FT_Outline*        outline,
+                                                 FT_Outline_Funcs*  funcs,
+                                                 void*              user );
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    FT_Outline_New                                                     */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Creates a new outline of a given size.                             */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    library     :: A handle to the library object from where the       */
+  /*                   outline is allocated.  Note however that the new    */
+  /*                   outline will NOT necessarily be FREED when          */
+  /*                   destroying the library, by FT_Done_FreeType().      */
+  /*                                                                       */
+  /*    numPoints   :: The maximal number of points within the outline.    */
+  /*                                                                       */
+  /*    numContours :: The maximal number of contours within the outline.  */
+  /*                                                                       */
+  /* <Output>                                                              */
+  /*    outline     :: A handle to the new outline.  NULL in case of       */
+  /*                   error.                                              */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    FreeType error code.  0 means success.                             */
+  /*                                                                       */
+  /* <MT-Note>                                                             */
+  /*    No.                                                                */
+  /*                                                                       */
+  /* <Note>                                                                */
+  /*    The reason why this function takes a `library' parameter is simply */
+  /*    to use the library's memory allocator.  You can copy the source    */
+  /*    code of this function, replacing allocations with `malloc()' if    */
+  /*    you want to control where the objects go.                          */
+  /*                                                                       */
+  FT_EXPORT_DEF(FT_Error)  FT_Outline_New( FT_Library   library,
+                                           FT_UInt      numPoints,
+                                           FT_Int       numContours,
+                                           FT_Outline*  outline );
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    FT_Outline_Done                                                    */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Destroys an outline created with FT_Outline_New().                 */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    library :: A handle of the library object used to allocate the     */
+  /*               outline.                                                */
+  /*                                                                       */
+  /*    outline :: A pointer to the outline object to be discarded.        */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    FreeType error code.  0 means success.                             */
+  /*                                                                       */
+  /* <MT-Note>                                                             */
+  /*    No.                                                                */
+  /*                                                                       */
+  /* <Note>                                                                */
+  /*    If the outline's `owner' field is not set, only the outline        */
+  /*    descriptor will be released.                                       */
+  /*                                                                       */
+  /*    The reason why this function takes an `outline' parameter is       */
+  /*    simply to use FT_Alloc()/FT_Free().  You can copy the source code  */
+  /*    of this function, replacing allocations with `malloc()' in your    */
+  /*    application if you want something simpler.                         */
+  /*                                                                       */
+  FT_EXPORT_DEF(FT_Error)  FT_Outline_Done( FT_Library   library,
+                                            FT_Outline*  outline );
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    FT_Outline_Get_CBox                                                */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Returns an outline's `control box'.  The control box encloses all  */
+  /*    the outline's points, including Bezier control points.  Though it  */
+  /*    coincides with the exact bounding box for most glyphs, it can be   */
+  /*    slightly larger in some situations (like when rotating an outline  */
+  /*    which contains Bezier outside arcs).                               */
+  /*                                                                       */
+  /*    Computing the control box is very fast, while getting the bounding */
+  /*    box can take much more time as it needs to walk over all segments  */
+  /*    and arcs in the outline.  To get the latter, you can use the       */
+  /*    `ftbbox' component which is dedicated to this single task.         */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    outline :: A pointer to the source outline descriptor.             */
+  /*                                                                       */
+  /* <Output>                                                              */
+  /*    cbox    :: The outline's control box.                              */
+  /*                                                                       */
+  /* <MT-Note>                                                             */
+  /*    Yes.                                                               */
+  /*                                                                       */
+  FT_EXPORT_DEF(void)  FT_Outline_Get_CBox( FT_Outline*  outline,
+                                            FT_BBox*     cbox );
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    FT_Outline_Translate                                               */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Applies a simple translation to the points of an outline.          */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    outline :: A pointer to the target outline descriptor.             */
+  /*    xOffset :: The horizontal offset.                                  */
+  /*    yOffset :: The vertical offset.                                    */
+  /*                                                                       */
+  /* <MT-Note>                                                             */
+  /*    Yes.                                                               */
+  /*                                                                       */
+  FT_EXPORT_DEF(void)  FT_Outline_Translate( FT_Outline*  outline,
+                                             FT_Pos       xOffset,
+                                             FT_Pos       yOffset );
+
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    FT_Outline_Copy                                                    */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Copies an outline into another one.  Both objects must have the    */
+  /*    same sizes (number of points & number of contours) when this       */
+  /*    function is called.                                                */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    source :: A handle to the source outline.                          */
+  /*    target :: A handle to the target outline.                          */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    FreeType error code.  0 means success.                             */
+  /*                                                                       */
+  FT_EXPORT_DEF(FT_Error)  FT_Outline_Copy( FT_Outline*  source,
+                                            FT_Outline*  target );
+
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    FT_Outline_Transform                                               */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Applies a simple 2x2 matrix to all of an outline's points.  Useful */
+  /*    for applying rotations, slanting, flipping, etc.                   */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    outline :: A pointer to the target outline descriptor.             */
+  /*    matrix  :: A pointer to the transformation matrix.                 */
+  /*                                                                       */
+  /* <MT-Note>                                                             */
+  /*    Yes.                                                               */
+  /*                                                                       */
+  /* <Note>                                                                */
+  /*    You can use FT_Outline_Translate() if you need to translate the    */
+  /*    outline's points.                                                  */
+  /*                                                                       */
+  FT_EXPORT_DEF(void)  FT_Outline_Transform( FT_Outline*  outline,
+                                             FT_Matrix*   matrix );
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    FT_Outline_Reverse                                                 */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Reverse the drawing direction of an outline. This is used to       */
+  /*    ensure consistent fill conventions for mirrored glyphs..           */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    outline :: A pointer to the target outline descriptor.             */
+  /*                                                                       */
+  /* <Note>                                                                */
+  /*    This functions toggles the bit flag ft_outline_reverse_fill in     */
+  /*    the outline's "flags" field..                                      */
+  /*                                                                       */
+  /*    It shouldn't be used by a normal client application, unless it     */
+  /*    knows what it's doing..                                            */
+  /*                                                                       */
+  FT_EXPORT_DEF(void)  FT_Outline_Reverse( FT_Outline*  outline );
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    FT_Outline_Get_Bitmap                                              */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Renders an outline within a bitmap.  The outline's image is simply */
+  /*    or-ed to the target bitmap.                                        */
+  /*                                                                       */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    library :: A handle to a FreeType library object.                  */
+  /*    outline :: A pointer to the source outline descriptor.             */
+  /*    map     :: A pointer to the target bitmap descriptor.              */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    FreeType error code.  0 means success.                             */
+  /*                                                                       */
+  /* <MT-Note>                                                             */
+  /*    YES.  Rendering is synchronized, so that concurrent calls to the   */
+  /*    scan-line converter will be serialized.                            */
+  /*                                                                       */
+  /* <Note>                                                                */
+  /*    This function does NOT CREATE the bitmap, it only renders an       */
+  /*    outline image within the one you pass to it!                       */
+  /*                                                                       */
+  /*    It will use the raster correponding to the default glyph format.   */
+  /*                                                                       */
+  FT_EXPORT_DEF(FT_Error)  FT_Outline_Get_Bitmap( FT_Library   library,
+                                                  FT_Outline*  outline,
+                                                  FT_Bitmap*   bitmap );
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    FT_Outline_Render                                                  */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Renders an outline within a bitmap using the current scan-convert  */
+  /*    This functions uses a FT_Raster_Params as argument, allowing       */
+  /*    advanced features like direct composition/translucency, etc..      */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    library :: A handle to a FreeType library object.                  */
+  /*    outline :: A pointer to the source outline descriptor.             */
+  /*    params  :: A pointer to a FT_Raster_Params used to describe        */
+  /*               the rendering operation                                 */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    FreeType error code.  0 means success.                             */
+  /*                                                                       */
+  /* <MT-Note>                                                             */
+  /*    YES.  Rendering is synchronized, so that concurrent calls to the   */
+  /*    scan-line converter will be serialized.                            */
+  /*                                                                       */
+  /* <Note>                                                                */
+  /*    You should know what you're doing and the role of FT_Raster_Params */
+  /*    to use this function.                                              */
+  /*                                                                       */
+  /*    the field "params.source" will be set to "outline" before the      */
+  /*    scan converter is called, which means that the value you give it   */
+  /*    is actually ignored..                                              */
+  /*                                                                       */
+  FT_EXPORT_DEF(FT_Error)  FT_Outline_Render( FT_Library        library,
+                                              FT_Outline*       outline,
+                                              FT_Raster_Params* params );
+
+
+
+
+#endif /* FTOUTLN_H */