XFA: merge patch from CL 815103002

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, 442 insertions, 0 deletions

diff --git a/third_party/freetype/src/cid/cidgload.c b/third_party/freetype/src/cid/cidgload.c
new file mode 100644
index 0000000000..7febab81c4
--- /dev/null
+++ b/third_party/freetype/src/cid/cidgload.c
@@ -0,0 +1,442 @@
+/***************************************************************************/
+/*                                                                         */
+/*  cidgload.c                                                             */
+/*                                                                         */
+/*    CID-keyed Type1 Glyph Loader (body).                                 */
+/*                                                                         */
+/*  Copyright 1996-2007, 2009, 2010, 2013 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.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#include <ft2build.h>
+#include "cidload.h"
+#include "cidgload.h"
+#include FT_INTERNAL_DEBUG_H
+#include FT_INTERNAL_STREAM_H
+#include FT_OUTLINE_H
+#include FT_INTERNAL_CALC_H
+
+#include "ciderrs.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_cidgload
+
+
+  FT_CALLBACK_DEF( FT_Error )
+  cid_load_glyph( T1_Decoder  decoder,
+                  FT_UInt     glyph_index )
+  {
+    CID_Face       face = (CID_Face)decoder->builder.face;
+    CID_FaceInfo   cid  = &face->cid;
+    FT_Byte*       p;
+    FT_UInt        fd_select;
+    FT_Stream      stream       = face->cid_stream;
+    FT_Error       error        = FT_Err_Ok;
+    FT_Byte*       charstring   = 0;
+    FT_Memory      memory       = face->root.memory;
+    FT_ULong       glyph_length = 0;
+    PSAux_Service  psaux        = (PSAux_Service)face->psaux;
+
+#ifdef FT_CONFIG_OPTION_INCREMENTAL
+    FT_Incremental_InterfaceRec *inc =
+                                  face->root.internal->incremental_interface;
+#endif
+
+
+    FT_TRACE1(( "cid_load_glyph: glyph index %d\n", glyph_index ));
+
+#ifdef FT_CONFIG_OPTION_INCREMENTAL
+
+    /* For incremental fonts get the character data using */
+    /* the callback function.                             */
+    if ( inc )
+    {
+      FT_Data  glyph_data;
+
+
+      error = inc->funcs->get_glyph_data( inc->object,
+                                          glyph_index, &glyph_data );
+      if ( error )
+        goto Exit;
+
+      p         = (FT_Byte*)glyph_data.pointer;
+      fd_select = (FT_UInt)cid_get_offset( &p, (FT_Byte)cid->fd_bytes );
+
+      if ( glyph_data.length != 0 )
+      {
+        glyph_length = glyph_data.length - cid->fd_bytes;
+        (void)FT_ALLOC( charstring, glyph_length );
+        if ( !error )
+          ft_memcpy( charstring, glyph_data.pointer + cid->fd_bytes,
+                     glyph_length );
+      }
+
+      inc->funcs->free_glyph_data( inc->object, &glyph_data );
+
+      if ( error )
+        goto Exit;
+    }
+
+    else
+
+#endif /* FT_CONFIG_OPTION_INCREMENTAL */
+
+    /* For ordinary fonts read the CID font dictionary index */
+    /* and charstring offset from the CIDMap.                */
+    {
+      FT_UInt   entry_len = cid->fd_bytes + cid->gd_bytes;
+      FT_ULong  off1;
+
+
+      if ( FT_STREAM_SEEK( cid->data_offset + cid->cidmap_offset +
+                           glyph_index * entry_len )               ||
+           FT_FRAME_ENTER( 2 * entry_len )                         )
+        goto Exit;
+
+      p            = (FT_Byte*)stream->cursor;
+      fd_select    = (FT_UInt) cid_get_offset( &p, (FT_Byte)cid->fd_bytes );
+      off1         = (FT_ULong)cid_get_offset( &p, (FT_Byte)cid->gd_bytes );
+      p           += cid->fd_bytes;
+      glyph_length = cid_get_offset( &p, (FT_Byte)cid->gd_bytes ) - off1;
+      FT_FRAME_EXIT();
+
+      if ( fd_select >= (FT_UInt)cid->num_dicts )
+      {
+        error = FT_THROW( Invalid_Offset );
+        goto Exit;
+      }
+      if ( glyph_length == 0 )
+        goto Exit;
+      if ( FT_ALLOC( charstring, glyph_length ) )
+        goto Exit;
+      if ( FT_STREAM_READ_AT( cid->data_offset + off1,
+                              charstring, glyph_length ) )
+        goto Exit;
+    }
+
+    /* Now set up the subrs array and parse the charstrings. */
+    {
+      CID_FaceDict  dict;
+      CID_Subrs     cid_subrs = face->subrs + fd_select;
+      FT_Int        cs_offset;
+
+
+      /* Set up subrs */
+      decoder->num_subrs = cid_subrs->num_subrs;
+      decoder->subrs     = cid_subrs->code;
+      decoder->subrs_len = 0;
+
+      /* Set up font matrix */
+      dict                 = cid->font_dicts + fd_select;
+
+      decoder->font_matrix = dict->font_matrix;
+      decoder->font_offset = dict->font_offset;
+      decoder->lenIV       = dict->private_dict.lenIV;
+
+      /* Decode the charstring. */
+
+      /* Adjustment for seed bytes. */
+      cs_offset = ( decoder->lenIV >= 0 ? decoder->lenIV : 0 );
+
+      /* Decrypt only if lenIV >= 0. */
+      if ( decoder->lenIV >= 0 )
+        psaux->t1_decrypt( charstring, glyph_length, 4330 );
+
+      error = decoder->funcs.parse_charstrings(
+                decoder, charstring + cs_offset,
+                (FT_Int)glyph_length - cs_offset );
+    }
+
+    FT_FREE( charstring );
+
+#ifdef FT_CONFIG_OPTION_INCREMENTAL
+
+    /* Incremental fonts can optionally override the metrics. */
+    if ( !error && inc && inc->funcs->get_glyph_metrics )
+    {
+      FT_Incremental_MetricsRec  metrics;
+
+
+      metrics.bearing_x = FIXED_TO_INT( decoder->builder.left_bearing.x );
+      metrics.bearing_y = 0;
+      metrics.advance   = FIXED_TO_INT( decoder->builder.advance.x );
+      metrics.advance_v = FIXED_TO_INT( decoder->builder.advance.y );
+
+      error = inc->funcs->get_glyph_metrics( inc->object,
+                                             glyph_index, FALSE, &metrics );
+
+      decoder->builder.left_bearing.x = INT_TO_FIXED( metrics.bearing_x );
+      decoder->builder.advance.x      = INT_TO_FIXED( metrics.advance );
+      decoder->builder.advance.y      = INT_TO_FIXED( metrics.advance_v );
+    }
+
+#endif /* FT_CONFIG_OPTION_INCREMENTAL */
+
+  Exit:
+    return error;
+  }
+
+
+#if 0
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+  /**********                                                      *********/
+  /**********                                                      *********/
+  /**********            COMPUTE THE MAXIMUM ADVANCE WIDTH         *********/
+  /**********                                                      *********/
+  /**********    The following code is in charge of computing      *********/
+  /**********    the maximum advance width of the font.  It        *********/
+  /**********    quickly processes each glyph charstring to        *********/
+  /**********    extract the value from either a `sbw' or `seac'   *********/
+  /**********    operator.                                         *********/
+  /**********                                                      *********/
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+
+
+  FT_LOCAL_DEF( FT_Error )
+  cid_face_compute_max_advance( CID_Face  face,
+                                FT_Int*   max_advance )
+  {
+    FT_Error       error;
+    T1_DecoderRec  decoder;
+    FT_Int         glyph_index;
+
+    PSAux_Service  psaux = (PSAux_Service)face->psaux;
+
+
+    *max_advance = 0;
+
+    /* Initialize load decoder */
+    error = psaux->t1_decoder_funcs->init( &decoder,
+                                           (FT_Face)face,
+                                           0, /* size       */
+                                           0, /* glyph slot */
+                                           0, /* glyph names! XXX */
+                                           0, /* blend == 0 */
+                                           0, /* hinting == 0 */
+                                           cid_load_glyph );
+    if ( error )
+      return error;
+
+    /* TODO: initialize decoder.len_buildchar and decoder.buildchar */
+    /*       if we ever support CID-keyed multiple master fonts     */
+
+    decoder.builder.metrics_only = 1;
+    decoder.builder.load_points  = 0;
+
+    /* for each glyph, parse the glyph charstring and extract */
+    /* the advance width                                      */
+    for ( glyph_index = 0; glyph_index < face->root.num_glyphs;
+          glyph_index++ )
+    {
+      /* now get load the unscaled outline */
+      error = cid_load_glyph( &decoder, glyph_index );
+      /* ignore the error if one occurred - skip to next glyph */
+    }
+
+    *max_advance = FIXED_TO_INT( decoder.builder.advance.x );
+
+    psaux->t1_decoder_funcs->done( &decoder );
+
+    return FT_Err_Ok;
+  }
+
+
+#endif /* 0 */
+
+
+  FT_LOCAL_DEF( FT_Error )
+  cid_slot_load_glyph( FT_GlyphSlot  cidglyph,      /* CID_GlyphSlot */
+                       FT_Size       cidsize,       /* CID_Size      */
+                       FT_UInt       glyph_index,
+                       FT_Int32      load_flags )
+  {
+    CID_GlyphSlot  glyph = (CID_GlyphSlot)cidglyph;
+    FT_Error       error;
+    T1_DecoderRec  decoder;
+    CID_Face       face = (CID_Face)cidglyph->face;
+    FT_Bool        hinting;
+
+    PSAux_Service  psaux = (PSAux_Service)face->psaux;
+    FT_Matrix      font_matrix;
+    FT_Vector      font_offset;
+
+
+    if ( glyph_index >= (FT_UInt)face->root.num_glyphs )
+    {
+      error = FT_THROW( Invalid_Argument );
+      goto Exit;
+    }
+
+    if ( load_flags & FT_LOAD_NO_RECURSE )
+      load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING;
+
+    glyph->x_scale = cidsize->metrics.x_scale;
+    glyph->y_scale = cidsize->metrics.y_scale;
+
+    cidglyph->outline.n_points   = 0;
+    cidglyph->outline.n_contours = 0;
+
+    hinting = FT_BOOL( ( load_flags & FT_LOAD_NO_SCALE   ) == 0 &&
+                       ( load_flags & FT_LOAD_NO_HINTING ) == 0 );
+
+    cidglyph->format = FT_GLYPH_FORMAT_OUTLINE;
+
+    error = psaux->t1_decoder_funcs->init( &decoder,
+                                           cidglyph->face,
+                                           cidsize,
+                                           cidglyph,
+                                           0, /* glyph names -- XXX */
+                                           0, /* blend == 0 */
+                                           hinting,
+                                           FT_LOAD_TARGET_MODE( load_flags ),
+                                           cid_load_glyph );
+    if ( error )
+      goto Exit;
+
+    /* TODO: initialize decoder.len_buildchar and decoder.buildchar */
+    /*       if we ever support CID-keyed multiple master fonts     */
+
+    /* set up the decoder */
+    decoder.builder.no_recurse = FT_BOOL(
+      ( ( load_flags & FT_LOAD_NO_RECURSE ) != 0 ) );
+
+    error = cid_load_glyph( &decoder, glyph_index );
+    if ( error )
+      goto Exit;
+
+    font_matrix = decoder.font_matrix;
+    font_offset = decoder.font_offset;
+
+    /* save new glyph tables */
+    psaux->t1_decoder_funcs->done( &decoder );
+
+    /* now set the metrics -- this is rather simple, as    */
+    /* the left side bearing is the xMin, and the top side */
+    /* bearing the yMax                                    */
+    cidglyph->outline.flags &= FT_OUTLINE_OWNER;
+    cidglyph->outline.flags |= FT_OUTLINE_REVERSE_FILL;
+
+    /* for composite glyphs, return only left side bearing and */
+    /* advance width                                           */
+    if ( load_flags & FT_LOAD_NO_RECURSE )
+    {
+      FT_Slot_Internal  internal = cidglyph->internal;
+
+
+      cidglyph->metrics.horiBearingX =
+        FIXED_TO_INT( decoder.builder.left_bearing.x );
+      cidglyph->metrics.horiAdvance =
+        FIXED_TO_INT( decoder.builder.advance.x );
+
+      internal->glyph_matrix      = font_matrix;
+      internal->glyph_delta       = font_offset;
+      internal->glyph_transformed = 1;
+    }
+    else
+    {
+      FT_BBox            cbox;
+      FT_Glyph_Metrics*  metrics = &cidglyph->metrics;
+      FT_Vector          advance;
+
+
+      /* copy the _unscaled_ advance width */
+      metrics->horiAdvance =
+        FIXED_TO_INT( decoder.builder.advance.x );
+      cidglyph->linearHoriAdvance =
+        FIXED_TO_INT( decoder.builder.advance.x );
+      cidglyph->internal->glyph_transformed = 0;
+
+      /* make up vertical ones */
+      metrics->vertAdvance        = ( face->cid.font_bbox.yMax -
+                                      face->cid.font_bbox.yMin ) >> 16;
+      cidglyph->linearVertAdvance = metrics->vertAdvance;
+
+      cidglyph->format            = FT_GLYPH_FORMAT_OUTLINE;
+
+      if ( cidsize->metrics.y_ppem < 24 )
+        cidglyph->outline.flags |= FT_OUTLINE_HIGH_PRECISION;
+
+      /* apply the font matrix */
+      FT_Outline_Transform( &cidglyph->outline, &font_matrix );
+
+      FT_Outline_Translate( &cidglyph->outline,
+                            font_offset.x,
+                            font_offset.y );
+
+      advance.x = metrics->horiAdvance;
+      advance.y = 0;
+      FT_Vector_Transform( &advance, &font_matrix );
+      metrics->horiAdvance = advance.x + font_offset.x;
+
+      advance.x = 0;
+      advance.y = metrics->vertAdvance;
+      FT_Vector_Transform( &advance, &font_matrix );
+      metrics->vertAdvance = advance.y + font_offset.y;
+
+      if ( ( load_flags & FT_LOAD_NO_SCALE ) == 0 )
+      {
+        /* scale the outline and the metrics */
+        FT_Int       n;
+        FT_Outline*  cur = decoder.builder.base;
+        FT_Vector*   vec = cur->points;
+        FT_Fixed     x_scale = glyph->x_scale;
+        FT_Fixed     y_scale = glyph->y_scale;
+
+
+        /* First of all, scale the points */
+        if ( !hinting || !decoder.builder.hints_funcs )
+          for ( n = cur->n_points; n > 0; n--, vec++ )
+          {
+            vec->x = FT_MulFix( vec->x, x_scale );
+            vec->y = FT_MulFix( vec->y, y_scale );
+          }
+
+        /* Then scale the metrics */
+        metrics->horiAdvance = FT_MulFix( metrics->horiAdvance, x_scale );
+        metrics->vertAdvance = FT_MulFix( metrics->vertAdvance, y_scale );
+      }
+
+      /* compute the other metrics */
+      FT_Outline_Get_CBox( &cidglyph->outline, &cbox );
+
+      metrics->width  = cbox.xMax - cbox.xMin;
+      metrics->height = cbox.yMax - cbox.yMin;
+
+      metrics->horiBearingX = cbox.xMin;
+      metrics->horiBearingY = cbox.yMax;
+
+      if ( load_flags & FT_LOAD_VERTICAL_LAYOUT )
+      {
+        /* make up vertical ones */
+        ft_synthesize_vertical_metrics( metrics,
+                                        metrics->vertAdvance );
+      }
+    }
+
+  Exit:
+    return error;
+  }
+
+
+/* END */