--- a/misc/libfreetype/src/base/ftadvanc.c Thu Jul 25 23:16:06 2013 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,163 +0,0 @@
-/***************************************************************************/
-/* */
-/* ftadvanc.c */
-/* */
-/* Quick computation of advance widths (body). */
-/* */
-/* Copyright 2008, 2009 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_ADVANCES_H
-#include FT_INTERNAL_OBJECTS_H
-
-
- static FT_Error
- _ft_face_scale_advances( FT_Face face,
- FT_Fixed* advances,
- FT_UInt count,
- FT_Int32 flags )
- {
- FT_Fixed scale;
- FT_UInt nn;
-
-
- if ( flags & FT_LOAD_NO_SCALE )
- return FT_Err_Ok;
-
- if ( face->size == NULL )
- return FT_Err_Invalid_Size_Handle;
-
- if ( flags & FT_LOAD_VERTICAL_LAYOUT )
- scale = face->size->metrics.y_scale;
- else
- scale = face->size->metrics.x_scale;
-
- /* this must be the same scaling as to get linear{Hori,Vert}Advance */
- /* (see `FT_Load_Glyph' implementation in src/base/ftobjs.c) */
-
- for ( nn = 0; nn < count; nn++ )
- advances[nn] = FT_MulDiv( advances[nn], scale, 64 );
-
- return FT_Err_Ok;
- }
-
-
- /* at the moment, we can perform fast advance retrieval only in */
- /* the following cases: */
- /* */
- /* - unscaled load */
- /* - unhinted load */
- /* - light-hinted load */
-
-#define LOAD_ADVANCE_FAST_CHECK( flags ) \
- ( flags & ( FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING ) || \
- FT_LOAD_TARGET_MODE( flags ) == FT_RENDER_MODE_LIGHT )
-
-
- /* documentation is in ftadvanc.h */
-
- FT_EXPORT_DEF( FT_Error )
- FT_Get_Advance( FT_Face face,
- FT_UInt gindex,
- FT_Int32 flags,
- FT_Fixed *padvance )
- {
- FT_Face_GetAdvancesFunc func;
-
-
- if ( !face )
- return FT_Err_Invalid_Face_Handle;
-
- if ( gindex >= (FT_UInt)face->num_glyphs )
- return FT_Err_Invalid_Glyph_Index;
-
- func = face->driver->clazz->get_advances;
- if ( func && LOAD_ADVANCE_FAST_CHECK( flags ) )
- {
- FT_Error error;
-
-
- error = func( face, gindex, 1, flags, padvance );
- if ( !error )
- return _ft_face_scale_advances( face, padvance, 1, flags );
-
- if ( error != FT_ERROR_BASE( FT_Err_Unimplemented_Feature ) )
- return error;
- }
-
- return FT_Get_Advances( face, gindex, 1, flags, padvance );
- }
-
-
- /* documentation is in ftadvanc.h */
-
- FT_EXPORT_DEF( FT_Error )
- FT_Get_Advances( FT_Face face,
- FT_UInt start,
- FT_UInt count,
- FT_Int32 flags,
- FT_Fixed *padvances )
- {
- FT_Face_GetAdvancesFunc func;
- FT_UInt num, end, nn;
- FT_Error error = FT_Err_Ok;
-
-
- if ( !face )
- return FT_Err_Invalid_Face_Handle;
-
- num = (FT_UInt)face->num_glyphs;
- end = start + count;
- if ( start >= num || end < start || end > num )
- return FT_Err_Invalid_Glyph_Index;
-
- if ( count == 0 )
- return FT_Err_Ok;
-
- func = face->driver->clazz->get_advances;
- if ( func && LOAD_ADVANCE_FAST_CHECK( flags ) )
- {
- error = func( face, start, count, flags, padvances );
- if ( !error )
- goto Exit;
-
- if ( error != FT_ERROR_BASE( FT_Err_Unimplemented_Feature ) )
- return error;
- }
-
- error = FT_Err_Ok;
-
- if ( flags & FT_ADVANCE_FLAG_FAST_ONLY )
- return FT_Err_Unimplemented_Feature;
-
- flags |= (FT_UInt32)FT_LOAD_ADVANCE_ONLY;
- for ( nn = 0; nn < count; nn++ )
- {
- error = FT_Load_Glyph( face, start + nn, flags );
- if ( error )
- break;
-
- padvances[nn] = ( flags & FT_LOAD_VERTICAL_LAYOUT )
- ? face->glyph->advance.y
- : face->glyph->advance.x;
- }
-
- if ( error )
- return error;
-
- Exit:
- return _ft_face_scale_advances( face, padvances, count, flags );
- }
-
-
-/* END */