Update freetype to 2.5.4.

Put freetype into third_party directory, cleaning up header files.

Previously freetype header files are in core/src/fxge/freetype and core/include/thirdparties. There were also multiple fx_freetype.h.

This patch removes the additional Foxit wrapper to make further update easier.

Notice, for original freetype source code, the following files are modified and need to be updated accordingly in future update:

third_party/freetype/include/config/ftmodule.h
third_party/freetype/include/config/ftoption.h

BUG=407341
R=thestig@chromium.org

Review URL: https://codereview.chromium.org/815103002

1 files changed, 625 insertions, 0 deletions

diff --git a/third_party/freetype/src/base/ftglyph.c b/third_party/freetype/src/base/ftglyph.c
new file mode 100644
index 0000000000..ac178c41be
--- /dev/null
+++ b/third_party/freetype/src/base/ftglyph.c
@@ -0,0 +1,625 @@
+/***************************************************************************/
+/*                                                                         */
+/*  ftglyph.c                                                              */
+/*                                                                         */
+/*    FreeType convenience functions to handle glyphs (body).              */
+/*                                                                         */
+/*  Copyright 1996-2005, 2007, 2008, 2010, 2012-2014 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.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+  /*************************************************************************/
+  /*                                                                       */
+  /*  This file contains the definition of several convenience functions   */
+  /*  that can be used by client applications to easily retrieve glyph     */
+  /*  bitmaps and outlines from a given face.                              */
+  /*                                                                       */
+  /*  These functions should be optional if you are writing a font server  */
+  /*  or text layout engine on top of FreeType.  However, they are pretty  */
+  /*  handy for many other simple uses of the library.                     */
+  /*                                                                       */
+  /*************************************************************************/
+
+
+#include <ft2build.h>
+#include FT_INTERNAL_DEBUG_H
+
+#include FT_GLYPH_H
+#include FT_OUTLINE_H
+#include FT_BITMAP_H
+#include FT_INTERNAL_OBJECTS_H
+
+#include "basepic.h"
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
+  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
+  /* messages during execution.                                            */
+  /*                                                                       */
+#undef  FT_COMPONENT
+#define FT_COMPONENT  trace_glyph
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /****                                                                 ****/
+  /****   FT_BitmapGlyph support                                        ****/
+  /****                                                                 ****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  FT_CALLBACK_DEF( FT_Error )
+  ft_bitmap_glyph_init( FT_Glyph      bitmap_glyph,
+                        FT_GlyphSlot  slot )
+  {
+    FT_BitmapGlyph  glyph   = (FT_BitmapGlyph)bitmap_glyph;
+    FT_Error        error   = FT_Err_Ok;
+    FT_Library      library = FT_GLYPH( glyph )->library;
+
+
+    if ( slot->format != FT_GLYPH_FORMAT_BITMAP )
+    {
+      error = FT_THROW( Invalid_Glyph_Format );
+      goto Exit;
+    }
+
+    glyph->left = slot->bitmap_left;
+    glyph->top  = slot->bitmap_top;
+
+    /* do lazy copying whenever possible */
+    if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP )
+    {
+      glyph->bitmap = slot->bitmap;
+      slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP;
+    }
+    else
+    {
+      FT_Bitmap_New( &glyph->bitmap );
+      error = FT_Bitmap_Copy( library, &slot->bitmap, &glyph->bitmap );
+    }
+
+  Exit:
+    return error;
+  }
+
+
+  FT_CALLBACK_DEF( FT_Error )
+  ft_bitmap_glyph_copy( FT_Glyph  bitmap_source,
+                        FT_Glyph  bitmap_target )
+  {
+    FT_Library      library = bitmap_source->library;
+    FT_BitmapGlyph  source  = (FT_BitmapGlyph)bitmap_source;
+    FT_BitmapGlyph  target  = (FT_BitmapGlyph)bitmap_target;
+
+
+    target->left = source->left;
+    target->top  = source->top;
+
+    return FT_Bitmap_Copy( library, &source->bitmap, &target->bitmap );
+  }
+
+
+  FT_CALLBACK_DEF( void )
+  ft_bitmap_glyph_done( FT_Glyph  bitmap_glyph )
+  {
+    FT_BitmapGlyph  glyph   = (FT_BitmapGlyph)bitmap_glyph;
+    FT_Library      library = FT_GLYPH( glyph )->library;
+
+
+    FT_Bitmap_Done( library, &glyph->bitmap );
+  }
+
+
+  FT_CALLBACK_DEF( void )
+  ft_bitmap_glyph_bbox( FT_Glyph  bitmap_glyph,
+                        FT_BBox*  cbox )
+  {
+    FT_BitmapGlyph  glyph = (FT_BitmapGlyph)bitmap_glyph;
+
+
+    cbox->xMin = glyph->left << 6;
+    cbox->xMax = cbox->xMin + ( glyph->bitmap.width << 6 );
+    cbox->yMax = glyph->top << 6;
+    cbox->yMin = cbox->yMax - ( glyph->bitmap.rows << 6 );
+  }
+
+
+  FT_DEFINE_GLYPH(ft_bitmap_glyph_class,
+    sizeof ( FT_BitmapGlyphRec ),
+    FT_GLYPH_FORMAT_BITMAP,
+
+    ft_bitmap_glyph_init,
+    ft_bitmap_glyph_done,
+    ft_bitmap_glyph_copy,
+    0,                          /* FT_Glyph_TransformFunc */
+    ft_bitmap_glyph_bbox,
+    0                           /* FT_Glyph_PrepareFunc   */
+  )
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /****                                                                 ****/
+  /****   FT_OutlineGlyph support                                       ****/
+  /****                                                                 ****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+
+  FT_CALLBACK_DEF( FT_Error )
+  ft_outline_glyph_init( FT_Glyph      outline_glyph,
+                         FT_GlyphSlot  slot )
+  {
+    FT_OutlineGlyph  glyph   = (FT_OutlineGlyph)outline_glyph;
+    FT_Error         error   = FT_Err_Ok;
+    FT_Library       library = FT_GLYPH( glyph )->library;
+    FT_Outline*      source  = &slot->outline;
+    FT_Outline*      target  = &glyph->outline;
+
+
+    /* check format in glyph slot */
+    if ( slot->format != FT_GLYPH_FORMAT_OUTLINE )
+    {
+      error = FT_THROW( Invalid_Glyph_Format );
+      goto Exit;
+    }
+
+    /* allocate new outline */
+    error = FT_Outline_New( library, source->n_points, source->n_contours,
+                            &glyph->outline );
+    if ( error )
+      goto Exit;
+
+    FT_Outline_Copy( source, target );
+
+  Exit:
+    return error;
+  }
+
+
+  FT_CALLBACK_DEF( void )
+  ft_outline_glyph_done( FT_Glyph  outline_glyph )
+  {
+    FT_OutlineGlyph  glyph = (FT_OutlineGlyph)outline_glyph;
+
+
+    FT_Outline_Done( FT_GLYPH( glyph )->library, &glyph->outline );
+  }
+
+
+  FT_CALLBACK_DEF( FT_Error )
+  ft_outline_glyph_copy( FT_Glyph  outline_source,
+                         FT_Glyph  outline_target )
+  {
+    FT_OutlineGlyph  source  = (FT_OutlineGlyph)outline_source;
+    FT_OutlineGlyph  target  = (FT_OutlineGlyph)outline_target;
+    FT_Error         error;
+    FT_Library       library = FT_GLYPH( source )->library;
+
+
+    error = FT_Outline_New( library, source->outline.n_points,
+                            source->outline.n_contours, &target->outline );
+    if ( !error )
+      FT_Outline_Copy( &source->outline, &target->outline );
+
+    return error;
+  }
+
+
+  FT_CALLBACK_DEF( void )
+  ft_outline_glyph_transform( FT_Glyph          outline_glyph,
+                              const FT_Matrix*  matrix,
+                              const FT_Vector*  delta )
+  {
+    FT_OutlineGlyph  glyph = (FT_OutlineGlyph)outline_glyph;
+
+
+    if ( matrix )
+      FT_Outline_Transform( &glyph->outline, matrix );
+
+    if ( delta )
+      FT_Outline_Translate( &glyph->outline, delta->x, delta->y );
+  }
+
+
+  FT_CALLBACK_DEF( void )
+  ft_outline_glyph_bbox( FT_Glyph  outline_glyph,
+                         FT_BBox*  bbox )
+  {
+    FT_OutlineGlyph  glyph = (FT_OutlineGlyph)outline_glyph;
+
+
+    FT_Outline_Get_CBox( &glyph->outline, bbox );
+  }
+
+
+  FT_CALLBACK_DEF( FT_Error )
+  ft_outline_glyph_prepare( FT_Glyph      outline_glyph,
+                            FT_GlyphSlot  slot )
+  {
+    FT_OutlineGlyph  glyph = (FT_OutlineGlyph)outline_glyph;
+
+
+    slot->format         = FT_GLYPH_FORMAT_OUTLINE;
+    slot->outline        = glyph->outline;
+    slot->outline.flags &= ~FT_OUTLINE_OWNER;
+
+    return FT_Err_Ok;
+  }
+
+
+  FT_DEFINE_GLYPH( ft_outline_glyph_class,
+    sizeof ( FT_OutlineGlyphRec ),
+    FT_GLYPH_FORMAT_OUTLINE,
+
+    ft_outline_glyph_init,
+    ft_outline_glyph_done,
+    ft_outline_glyph_copy,
+    ft_outline_glyph_transform,
+    ft_outline_glyph_bbox,
+    ft_outline_glyph_prepare
+  )
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /****                                                                 ****/
+  /****   FT_Glyph class and API                                        ****/
+  /****                                                                 ****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+   static FT_Error
+   ft_new_glyph( FT_Library             library,
+                 const FT_Glyph_Class*  clazz,
+                 FT_Glyph*              aglyph )
+   {
+     FT_Memory  memory = library->memory;
+     FT_Error   error;
+     FT_Glyph   glyph  = NULL;
+
+
+     *aglyph = 0;
+
+     if ( !FT_ALLOC( glyph, clazz->glyph_size ) )
+     {
+       glyph->library = library;
+       glyph->clazz   = clazz;
+       glyph->format  = clazz->glyph_format;
+
+       *aglyph = glyph;
+     }
+
+     return error;
+   }
+
+
+  /* documentation is in ftglyph.h */
+
+  FT_EXPORT_DEF( FT_Error )
+  FT_Glyph_Copy( FT_Glyph   source,
+                 FT_Glyph  *target )
+  {
+    FT_Glyph               copy;
+    FT_Error               error;
+    const FT_Glyph_Class*  clazz;
+
+
+    /* check arguments */
+    if ( !target || !source || !source->clazz )
+    {
+      error = FT_THROW( Invalid_Argument );
+      goto Exit;
+    }
+
+    *target = NULL;
+
+    if ( !source || !source->clazz )
+    {
+      error = FT_THROW( Invalid_Argument );
+      goto Exit;
+    }
+
+    clazz = source->clazz;
+    error = ft_new_glyph( source->library, clazz, &copy );
+    if ( error )
+      goto Exit;
+
+    copy->advance = source->advance;
+    copy->format  = source->format;
+
+    if ( clazz->glyph_copy )
+      error = clazz->glyph_copy( source, copy );
+
+    if ( error )
+      FT_Done_Glyph( copy );
+    else
+      *target = copy;
+
+  Exit:
+    return error;
+  }
+
+
+  /* documentation is in ftglyph.h */
+
+  FT_EXPORT_DEF( FT_Error )
+  FT_Get_Glyph( FT_GlyphSlot  slot,
+                FT_Glyph     *aglyph )
+  {
+    FT_Library  library;
+    FT_Error    error;
+    FT_Glyph    glyph;
+
+    const FT_Glyph_Class*  clazz = NULL;
+
+
+    if ( !slot )
+      return FT_THROW( Invalid_Slot_Handle );
+
+    library = slot->library;
+
+    if ( !aglyph )
+      return FT_THROW( Invalid_Argument );
+
+    /* if it is a bitmap, that's easy :-) */
+    if ( slot->format == FT_GLYPH_FORMAT_BITMAP )
+      clazz = FT_BITMAP_GLYPH_CLASS_GET;
+
+    /* if it is an outline */
+    else if ( slot->format == FT_GLYPH_FORMAT_OUTLINE )
+      clazz = FT_OUTLINE_GLYPH_CLASS_GET;
+
+    else
+    {
+      /* try to find a renderer that supports the glyph image format */
+      FT_Renderer  render = FT_Lookup_Renderer( library, slot->format, 0 );
+
+
+      if ( render )
+        clazz = &render->glyph_class;
+    }
+
+    if ( !clazz )
+    {
+      error = FT_THROW( Invalid_Glyph_Format );
+      goto Exit;
+    }
+
+    /* create FT_Glyph object */
+    error = ft_new_glyph( library, clazz, &glyph );
+    if ( error )
+      goto Exit;
+
+    /* copy advance while converting it to 16.16 format */
+    glyph->advance.x = slot->advance.x << 10;
+    glyph->advance.y = slot->advance.y << 10;
+
+    /* now import the image from the glyph slot */
+    error = clazz->glyph_init( glyph, slot );
+
+    /* if an error occurred, destroy the glyph */
+    if ( error )
+      FT_Done_Glyph( glyph );
+    else
+      *aglyph = glyph;
+
+  Exit:
+    return error;
+  }
+
+
+  /* documentation is in ftglyph.h */
+
+  FT_EXPORT_DEF( FT_Error )
+  FT_Glyph_Transform( FT_Glyph    glyph,
+                      FT_Matrix*  matrix,
+                      FT_Vector*  delta )
+  {
+    FT_Error  error = FT_Err_Ok;
+
+
+    if ( !glyph || !glyph->clazz )
+      error = FT_THROW( Invalid_Argument );
+    else
+    {
+      const FT_Glyph_Class*  clazz = glyph->clazz;
+
+
+      if ( clazz->glyph_transform )
+      {
+        /* transform glyph image */
+        clazz->glyph_transform( glyph, matrix, delta );
+
+        /* transform advance vector */
+        if ( matrix )
+          FT_Vector_Transform( &glyph->advance, matrix );
+      }
+      else
+        error = FT_THROW( Invalid_Glyph_Format );
+    }
+    return error;
+  }
+
+
+  /* documentation is in ftglyph.h */
+
+  FT_EXPORT_DEF( void )
+  FT_Glyph_Get_CBox( FT_Glyph  glyph,
+                     FT_UInt   bbox_mode,
+                     FT_BBox  *acbox )
+  {
+    const FT_Glyph_Class*  clazz;
+
+
+    if ( !acbox )
+      return;
+
+    acbox->xMin = acbox->yMin = acbox->xMax = acbox->yMax = 0;
+
+    if ( !glyph || !glyph->clazz )
+      return;
+
+    clazz = glyph->clazz;
+    if ( !clazz->glyph_bbox )
+      return;
+
+    /* retrieve bbox in 26.6 coordinates */
+    clazz->glyph_bbox( glyph, acbox );
+
+    /* perform grid fitting if needed */
+    if ( bbox_mode == FT_GLYPH_BBOX_GRIDFIT ||
+         bbox_mode == FT_GLYPH_BBOX_PIXELS  )
+    {
+      acbox->xMin = FT_PIX_FLOOR( acbox->xMin );
+      acbox->yMin = FT_PIX_FLOOR( acbox->yMin );
+      acbox->xMax = FT_PIX_CEIL( acbox->xMax );
+      acbox->yMax = FT_PIX_CEIL( acbox->yMax );
+    }
+
+    /* convert to integer pixels if needed */
+    if ( bbox_mode == FT_GLYPH_BBOX_TRUNCATE ||
+         bbox_mode == FT_GLYPH_BBOX_PIXELS   )
+    {
+      acbox->xMin >>= 6;
+      acbox->yMin >>= 6;
+      acbox->xMax >>= 6;
+      acbox->yMax >>= 6;
+    }
+  }
+
+
+  /* documentation is in ftglyph.h */
+
+  FT_EXPORT_DEF( FT_Error )
+  FT_Glyph_To_Bitmap( FT_Glyph*       the_glyph,
+                      FT_Render_Mode  render_mode,
+                      FT_Vector*      origin,
+                      FT_Bool         destroy )
+  {
+    FT_GlyphSlotRec           dummy;
+    FT_GlyphSlot_InternalRec  dummy_internal;
+    FT_Error                  error = FT_Err_Ok;
+    FT_Glyph                  b, glyph;
+    FT_BitmapGlyph            bitmap = NULL;
+    const FT_Glyph_Class*     clazz;
+
+    /* FT_BITMAP_GLYPH_CLASS_GET dereferences `library' in PIC mode */
+    FT_Library                library;
+
+
+    /* check argument */
+    if ( !the_glyph )
+      goto Bad;
+    glyph = *the_glyph;
+    if ( !glyph )
+      goto Bad;
+
+    clazz   = glyph->clazz;
+    library = glyph->library;
+    if ( !library || !clazz )
+      goto Bad;
+
+    /* when called with a bitmap glyph, do nothing and return successfully */
+    if ( clazz == FT_BITMAP_GLYPH_CLASS_GET )
+      goto Exit;
+
+    if ( !clazz->glyph_prepare )
+      goto Bad;
+
+    /* we render the glyph into a glyph bitmap using a `dummy' glyph slot */
+    /* then calling FT_Render_Glyph_Internal()                            */
+
+    FT_MEM_ZERO( &dummy, sizeof ( dummy ) );
+    FT_MEM_ZERO( &dummy_internal, sizeof ( dummy_internal ) );
+    dummy.internal = &dummy_internal;
+    dummy.library  = library;
+    dummy.format   = clazz->glyph_format;
+
+    /* create result bitmap glyph */
+    error = ft_new_glyph( library, FT_BITMAP_GLYPH_CLASS_GET, &b );
+    if ( error )
+      goto Exit;
+    bitmap = (FT_BitmapGlyph)b;
+
+#if 1
+    /* if `origin' is set, translate the glyph image */
+    if ( origin )
+      FT_Glyph_Transform( glyph, 0, origin );
+#else
+    FT_UNUSED( origin );
+#endif
+
+    /* prepare dummy slot for rendering */
+    error = clazz->glyph_prepare( glyph, &dummy );
+    if ( !error )
+      error = FT_Render_Glyph_Internal( glyph->library, &dummy, render_mode );
+
+#if 1
+    if ( !destroy && origin )
+    {
+      FT_Vector  v;
+
+
+      v.x = -origin->x;
+      v.y = -origin->y;
+      FT_Glyph_Transform( glyph, 0, &v );
+    }
+#endif
+
+    if ( error )
+      goto Exit;
+
+    /* in case of success, copy the bitmap to the glyph bitmap */
+    error = ft_bitmap_glyph_init( (FT_Glyph)bitmap, &dummy );
+    if ( error )
+      goto Exit;
+
+    /* copy advance */
+    bitmap->root.advance = glyph->advance;
+
+    if ( destroy )
+      FT_Done_Glyph( glyph );
+
+    *the_glyph = FT_GLYPH( bitmap );
+
+  Exit:
+    if ( error && bitmap )
+      FT_Done_Glyph( FT_GLYPH( bitmap ) );
+
+    return error;
+
+  Bad:
+    error = FT_THROW( Invalid_Argument );
+    goto Exit;
+  }
+
+
+  /* documentation is in ftglyph.h */
+
+  FT_EXPORT_DEF( void )
+  FT_Done_Glyph( FT_Glyph  glyph )
+  {
+    if ( glyph )
+    {
+      FT_Memory              memory = glyph->library->memory;
+      const FT_Glyph_Class*  clazz  = glyph->clazz;
+
+
+      if ( clazz->glyph_done )
+        clazz->glyph_done( glyph );
+
+      FT_FREE( glyph );
+    }
+  }
+
+
+/* END */