--- a/misc/libfreetype/src/base/ftsynth.c Tue Jul 16 11:14:27 2013 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,160 +0,0 @@
-/***************************************************************************/
-/* */
-/* ftsynth.c */
-/* */
-/* FreeType synthesizing code for emboldening and slanting (body). */
-/* */
-/* Copyright 2000-2001, 2002, 2003, 2004, 2005, 2006, 2010 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 FT_SYNTHESIS_H
-#include FT_INTERNAL_DEBUG_H
-#include FT_INTERNAL_OBJECTS_H
-#include FT_OUTLINE_H
-#include FT_BITMAP_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_synth
-
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** EXPERIMENTAL OBLIQUING SUPPORT ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
-
- /* documentation is in ftsynth.h */
-
- FT_EXPORT_DEF( void )
- FT_GlyphSlot_Oblique( FT_GlyphSlot slot )
- {
- FT_Matrix transform;
- FT_Outline* outline = &slot->outline;
-
-
- /* only oblique outline glyphs */
- if ( slot->format != FT_GLYPH_FORMAT_OUTLINE )
- return;
-
- /* we don't touch the advance width */
-
- /* For italic, simply apply a shear transform, with an angle */
- /* of about 12 degrees. */
-
- transform.xx = 0x10000L;
- transform.yx = 0x00000L;
-
- transform.xy = 0x06000L;
- transform.yy = 0x10000L;
-
- FT_Outline_Transform( outline, &transform );
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** EXPERIMENTAL EMBOLDENING/OUTLINING SUPPORT ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /* documentation is in ftsynth.h */
-
- FT_EXPORT_DEF( void )
- FT_GlyphSlot_Embolden( FT_GlyphSlot slot )
- {
- FT_Library library = slot->library;
- FT_Face face = slot->face;
- FT_Error error;
- FT_Pos xstr, ystr;
-
-
- if ( slot->format != FT_GLYPH_FORMAT_OUTLINE &&
- slot->format != FT_GLYPH_FORMAT_BITMAP )
- return;
-
- /* some reasonable strength */
- xstr = FT_MulFix( face->units_per_EM,
- face->size->metrics.y_scale ) / 24;
- ystr = xstr;
-
- if ( slot->format == FT_GLYPH_FORMAT_OUTLINE )
- {
- /* ignore error */
- (void)FT_Outline_Embolden( &slot->outline, xstr );
-
- /* this is more than enough for most glyphs; if you need accurate */
- /* values, you have to call FT_Outline_Get_CBox */
- xstr = xstr * 2;
- ystr = xstr;
- }
- else /* slot->format == FT_GLYPH_FORMAT_BITMAP */
- {
- /* round to full pixels */
- xstr &= ~63;
- if ( xstr == 0 )
- xstr = 1 << 6;
- ystr &= ~63;
-
- /*
- * XXX: overflow check for 16-bit system, for compatibility
- * with FT_GlyphSlot_Embolden() since freetype-2.1.10.
- * unfortunately, this function return no informations
- * about the cause of error.
- */
- if ( ( ystr >> 6 ) > FT_INT_MAX || ( ystr >> 6 ) < FT_INT_MIN )
- {
- FT_TRACE1(( "FT_GlyphSlot_Embolden:" ));
- FT_TRACE1(( "too strong embolding parameter ystr=%d\n", ystr ));
- return;
- }
- error = FT_GlyphSlot_Own_Bitmap( slot );
- if ( error )
- return;
-
- error = FT_Bitmap_Embolden( library, &slot->bitmap, xstr, ystr );
- if ( error )
- return;
- }
-
- if ( slot->advance.x )
- slot->advance.x += xstr;
-
- if ( slot->advance.y )
- slot->advance.y += ystr;
-
- slot->metrics.width += xstr;
- slot->metrics.height += ystr;
- slot->metrics.horiBearingY += ystr;
- slot->metrics.horiAdvance += xstr;
- slot->metrics.vertBearingX -= xstr / 2;
- slot->metrics.vertBearingY += ystr;
- slot->metrics.vertAdvance += ystr;
-
- /* XXX: 16-bit overflow case must be excluded before here */
- if ( slot->format == FT_GLYPH_FORMAT_BITMAP )
- slot->bitmap_top += (FT_Int)( ystr >> 6 );
- }
-
-
-/* END */