Hey Werner,
I know you don't find this important, but I like cleaning up. ;) Does
GUESS_VECTOR() in ttinterp.c do anything now? As in
if ( opcode < 4 )
{
exc->GS.projVector.x = AA;
exc->GS.projVector.y = BB;
exc->GS.dualVector.x = AA;
exc->GS.dualVector.y = BB;
}
else
GUESS_VECTOR( projVector );
Or can this be compressed to
exc->GS.projVector.x = AA;
exc->GS.projVector.y = BB;
exc->GS.dualVector.x = AA;
exc->GS.dualVector.y = BB;
?
And there's one enum left:
typedef enum FT_TrueTypeEngineType_
{
FT_TRUETYPE_ENGINE_TYPE_NONE = 0,
FT_TRUETYPE_ENGINE_TYPE_UNPATENTED,
FT_TRUETYPE_ENGINE_TYPE_PATENTED
} FT_TrueTypeEngineType;
Can it stay?
diff --git a/devel/ftoption.h b/devel/ftoption.h
index f68b3ad..da44e2f 100644
--- a/devel/ftoption.h
+++ b/devel/ftoption.h
@@ -607,56 +607,6 @@ FT_BEGIN_HEADER
/*************************************************************************/
/* */
- /* If you define TT_CONFIG_OPTION_UNPATENTED_HINTING, a special version */
- /* of the TrueType bytecode interpreter is used that doesn't implement */
- /* any of the patented opcodes and algorithms. The patents related to */
- /* TrueType hinting have expired worldwide since May 2010; this option */
- /* is now deprecated. */
- /* */
- /* Note that the TT_CONFIG_OPTION_UNPATENTED_HINTING macro is *ignored* */
- /* if you define TT_CONFIG_OPTION_BYTECODE_INTERPRETER; in other words, */
- /* either define TT_CONFIG_OPTION_BYTECODE_INTERPRETER or */
- /* TT_CONFIG_OPTION_UNPATENTED_HINTING but not both at the same time. */
- /* */
- /* This macro is only useful for a small number of font files (mostly */
- /* for Asian scripts) that require bytecode interpretation to properly */
- /* load glyphs. For all other fonts, this produces unpleasant results, */
- /* thus the unpatented interpreter is never used to load glyphs from */
- /* TrueType fonts unless one of the following two options is used. */
- /* */
- /* - The unpatented interpreter is explicitly activated by the user */
- /* through the FT_PARAM_TAG_UNPATENTED_HINTING parameter tag */
- /* when opening the FT_Face. */
- /* */
- /* - FreeType detects that the FT_Face corresponds to one of the */
- /* `trick' fonts (e.g., `Mingliu') it knows about. The font engine */
- /* contains a hard-coded list of font names and other matching */
- /* parameters (see function `tt_face_init' in file */
- /* `src/truetype/ttobjs.c'). */
- /* */
- /* Here a sample code snippet for using FT_PARAM_TAG_UNPATENTED_HINTING. */
- /* */
- /* { */
- /* FT_Parameter parameter; */
- /* FT_Open_Args open_args; */
- /* */
- /* */
- /* parameter.tag = FT_PARAM_TAG_UNPATENTED_HINTING; */
- /* */
- /* open_args.flags = FT_OPEN_PATHNAME | FT_OPEN_PARAMS; */
- /* open_args.pathname = my_font_pathname; */
- /* open_args.num_params = 1; */
- /* open_args.params = ¶meter; */
- /* */
- /* error = FT_Open_Face( library, &open_args, index, &face ); */
- /* ... */
- /* } */
- /* */
-/* #define TT_CONFIG_OPTION_UNPATENTED_HINTING */
-
-
- /*************************************************************************/
- /* */
/* Define TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED to compile the */
/* TrueType glyph loader to use Apple's definition of how to handle */
/* component offsets in composite glyphs. */
@@ -856,14 +806,11 @@ FT_BEGIN_HEADER
/*
- * This macro is defined if either unpatented or native TrueType
- * hinting is requested by the definitions above.
+ * This macro is defined if native TrueType hinting is requested by the
+ * definitions above.
*/
#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
#define TT_USE_BYTECODE_INTERPRETER
-#undef TT_CONFIG_OPTION_UNPATENTED_HINTING
-#elif defined TT_CONFIG_OPTION_UNPATENTED_HINTING
-#define TT_USE_BYTECODE_INTERPRETER
#endif
diff --git a/include/freetype/config/ftheader.h b/include/freetype/config/ftheader.h
index 55f833d..e040950 100644
--- a/include/freetype/config/ftheader.h
+++ b/include/freetype/config/ftheader.h
@@ -750,18 +750,6 @@
/*************************************************************************
*
* @macro:
- * FT_UNPATENTED_HINTING_H
- *
- * @description:
- * A macro used in #include statements to name the file containing the
- * FreeType~2 API which performs color filtering for subpixel rendering.
- */
-#define FT_UNPATENTED_HINTING_H <freetype/ttunpat.h>
-
-
- /*************************************************************************
- *
- * @macro:
* FT_INCREMENTAL_H
*
* @description:
@@ -815,8 +803,6 @@
#define FT_INCREMENTAL_H <freetype/ftincrem.h>
-#define FT_TRUETYPE_UNPATENTED_H <freetype/ttunpat.h>
-
/*
* Include internal headers definitions from <internal/...>
diff --git a/include/freetype/config/ftoption.h b/include/freetype/config/ftoption.h
index b481f8f..b39fdca 100644
--- a/include/freetype/config/ftoption.h
+++ b/include/freetype/config/ftoption.h
@@ -92,7 +92,7 @@ FT_BEGIN_HEADER
/* This is done to allow FreeType clients to run unmodified, forcing */
/* them to display normal gray-level anti-aliased glyphs. */
/* */
-/* #define FT_CONFIG_OPTION_SUBPIXEL_RENDERING */
+#define FT_CONFIG_OPTION_SUBPIXEL_RENDERING
/*************************************************************************/
@@ -607,56 +607,6 @@ FT_BEGIN_HEADER
/*************************************************************************/
/* */
- /* If you define TT_CONFIG_OPTION_UNPATENTED_HINTING, a special version */
- /* of the TrueType bytecode interpreter is used that doesn't implement */
- /* any of the patented opcodes and algorithms. The patents related to */
- /* TrueType hinting have expired worldwide since May 2010; this option */
- /* is now deprecated. */
- /* */
- /* Note that the TT_CONFIG_OPTION_UNPATENTED_HINTING macro is *ignored* */
- /* if you define TT_CONFIG_OPTION_BYTECODE_INTERPRETER; in other words, */
- /* either define TT_CONFIG_OPTION_BYTECODE_INTERPRETER or */
- /* TT_CONFIG_OPTION_UNPATENTED_HINTING but not both at the same time. */
- /* */
- /* This macro is only useful for a small number of font files (mostly */
- /* for Asian scripts) that require bytecode interpretation to properly */
- /* load glyphs. For all other fonts, this produces unpleasant results, */
- /* thus the unpatented interpreter is never used to load glyphs from */
- /* TrueType fonts unless one of the following two options is used. */
- /* */
- /* - The unpatented interpreter is explicitly activated by the user */
- /* through the FT_PARAM_TAG_UNPATENTED_HINTING parameter tag */
- /* when opening the FT_Face. */
- /* */
- /* - FreeType detects that the FT_Face corresponds to one of the */
- /* `trick' fonts (e.g., `Mingliu') it knows about. The font engine */
- /* contains a hard-coded list of font names and other matching */
- /* parameters (see function `tt_face_init' in file */
- /* `src/truetype/ttobjs.c'). */
- /* */
- /* Here a sample code snippet for using FT_PARAM_TAG_UNPATENTED_HINTING. */
- /* */
- /* { */
- /* FT_Parameter parameter; */
- /* FT_Open_Args open_args; */
- /* */
- /* */
- /* parameter.tag = FT_PARAM_TAG_UNPATENTED_HINTING; */
- /* */
- /* open_args.flags = FT_OPEN_PATHNAME | FT_OPEN_PARAMS; */
- /* open_args.pathname = my_font_pathname; */
- /* open_args.num_params = 1; */
- /* open_args.params = ¶meter; */
- /* */
- /* error = FT_Open_Face( library, &open_args, index, &face ); */
- /* ... */
- /* } */
- /* */
-/* #define TT_CONFIG_OPTION_UNPATENTED_HINTING */
-
-
- /*************************************************************************/
- /* */
/* Define TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED to compile the */
/* TrueType glyph loader to use Apple's definition of how to handle */
/* component offsets in composite glyphs. */
@@ -856,14 +806,11 @@ FT_BEGIN_HEADER
/*
- * This macro is defined if either unpatented or native TrueType
- * hinting is requested by the definitions above.
+ * This macro is defined if native TrueType hinting is requested by the
+ * definitions above.
*/
#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
#define TT_USE_BYTECODE_INTERPRETER
-#undef TT_CONFIG_OPTION_UNPATENTED_HINTING
-#elif defined TT_CONFIG_OPTION_UNPATENTED_HINTING
-#define TT_USE_BYTECODE_INTERPRETER
#endif
diff --git a/include/freetype/ftmodapi.h b/include/freetype/ftmodapi.h
index 89d9347..c815157 100644
--- a/include/freetype/ftmodapi.h
+++ b/include/freetype/ftmodapi.h
@@ -613,12 +613,7 @@ FT_BEGIN_HEADER
* The library doesn't implement any kind of bytecode interpreter.
*
* FT_TRUETYPE_ENGINE_TYPE_UNPATENTED ::
- * The library implements a bytecode interpreter that doesn't
- * support the patented operations of the TrueType virtual machine.
- *
- * Its main use is to load certain Asian fonts that position and
- * scale glyph components with bytecode instructions. It produces
- * bad output for most other fonts.
+ * (Obsolete and removed.)
*
* FT_TRUETYPE_ENGINE_TYPE_PATENTED ::
* The library implements a bytecode interpreter that covers
diff --git a/include/freetype/internal/ftobjs.h b/include/freetype/internal/ftobjs.h
index 9a333fc..cdd3c0f 100644
--- a/include/freetype/internal/ftobjs.h
+++ b/include/freetype/internal/ftobjs.h
@@ -775,13 +775,6 @@ FT_BEGIN_HEADER
#define FT_DEBUG_HOOK_TRUETYPE 0
- /* Set this debug hook to a non-null pointer to force unpatented hinting */
- /* for all faces when both TT_USE_BYTECODE_INTERPRETER and */
- /* TT_CONFIG_OPTION_UNPATENTED_HINTING are defined. This is only used */
- /* during debugging. */
-#define FT_DEBUG_HOOK_UNPATENTED_HINTING 1
-
-
typedef void (*FT_Bitmap_LcdFilterFunc)( FT_Bitmap* bitmap,
FT_Render_Mode render_mode,
FT_Library library );
diff --git a/include/freetype/internal/tttypes.h b/include/freetype/internal/tttypes.h
index 000c5a8..43bfb0a 100644
--- a/include/freetype/internal/tttypes.h
+++ b/include/freetype/internal/tttypes.h
@@ -1334,11 +1334,6 @@ FT_BEGIN_HEADER
/* used to hook the debugger for the `ttdebug' utility. */
TT_Interpreter interpreter;
-#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
- /* Use unpatented hinting only. */
- FT_Bool unpatented_hinting;
-#endif
-
/***********************************************************************/
/* */
/* Other tables or fields. This is used by derivative formats like */
diff --git a/include/freetype/tttables.h b/include/freetype/tttables.h
index 1568f40..d17e912 100644
--- a/include/freetype/tttables.h
+++ b/include/freetype/tttables.h
@@ -65,8 +65,6 @@ FT_BEGIN_HEADER
/* FT_Get_CMap_Language_ID */
/* FT_Get_CMap_Format */
/* */
- /* FT_PARAM_TAG_UNPATENTED_HINTING */
- /* */
/*************************************************************************/
diff --git a/include/freetype/ttunpat.h b/include/freetype/ttunpat.h
deleted file mode 100644
index 8ea5568..0000000
--- a/include/freetype/ttunpat.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/***************************************************************************/
-/* */
-/* ttunpat.h */
-/* */
-/* Definitions for the unpatented TrueType hinting system */
-/* */
-/* Copyright 2003-2015 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* Written by Graham Asher <graham.as...@btinternet.com> */
-/* */
-/* 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 __TTUNPAT_H__
-#define __TTUNPAT_H__
-
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-
-#ifdef FREETYPE_H
-#error "freetype.h of FreeType 1 has been loaded!"
-#error "Please fix the directory search order for header files"
-#error "so that freetype.h of FreeType 2 is found first."
-#endif
-
-
-FT_BEGIN_HEADER
-
-
- /***************************************************************************
- *
- * @constant:
- * FT_PARAM_TAG_UNPATENTED_HINTING
- *
- * @description:
- * A constant used as the tag of an @FT_Parameter structure to indicate
- * that unpatented methods only should be used by the TrueType bytecode
- * interpreter for a typeface opened by @FT_Open_Face.
- *
- */
-#define FT_PARAM_TAG_UNPATENTED_HINTING FT_MAKE_TAG( 'u', 'n', 'p', 'a' )
-
- /* */
-
-
-FT_END_HEADER
-
-
-#endif /* __TTUNPAT_H__ */
-
-
-/* END */
diff --git a/src/base/ftpatent.c b/src/base/ftpatent.c
deleted file mode 100644
index bf2b085..0000000
--- a/src/base/ftpatent.c
+++ /dev/null
@@ -1,287 +0,0 @@
-/***************************************************************************/
-/* */
-/* ftpatent.c */
-/* */
-/* FreeType API for checking patented TrueType bytecode instructions */
-/* (body). */
-/* */
-/* Copyright 2007-2015 by */
-/* David Turner. */
-/* */
-/* 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_FREETYPE_H
-#include FT_TRUETYPE_TAGS_H
-#include FT_INTERNAL_OBJECTS_H
-#include FT_INTERNAL_STREAM_H
-#include FT_SERVICE_SFNT_H
-#include FT_SERVICE_TRUETYPE_GLYF_H
-
-
- static FT_Bool
- _tt_check_patents_in_range( FT_Stream stream,
- FT_ULong size )
- {
- FT_Bool result = FALSE;
- FT_Error error;
- FT_Bytes p, end;
-
-
- if ( FT_FRAME_ENTER( size ) )
- return 0;
-
- p = stream->cursor;
- end = p + size;
-
- while ( p < end )
- {
- switch (p[0])
- {
- case 0x06: /* SPvTL // */
- case 0x07: /* SPvTL + */
- case 0x08: /* SFvTL // */
- case 0x09: /* SFvTL + */
- case 0x0A: /* SPvFS */
- case 0x0B: /* SFvFS */
- result = TRUE;
- goto Exit;
-
- case 0x40:
- if ( p + 1 >= end )
- goto Exit;
-
- p += p[1] + 2;
- break;
-
- case 0x41:
- if ( p + 1 >= end )
- goto Exit;
-
- p += p[1] * 2 + 2;
- break;
-
- case 0x71: /* DELTAP2 */
- case 0x72: /* DELTAP3 */
- case 0x73: /* DELTAC0 */
- case 0x74: /* DELTAC1 */
- case 0x75: /* DELTAC2 */
- result = TRUE;
- goto Exit;
-
- case 0xB0:
- case 0xB1:
- case 0xB2:
- case 0xB3:
- case 0xB4:
- case 0xB5:
- case 0xB6:
- case 0xB7:
- p += ( p[0] - 0xB0 ) + 2;
- break;
-
- case 0xB8:
- case 0xB9:
- case 0xBA:
- case 0xBB:
- case 0xBC:
- case 0xBD:
- case 0xBE:
- case 0xBF:
- p += ( p[0] - 0xB8 ) * 2 + 3;
- break;
-
- default:
- p += 1;
- break;
- }
- }
-
- Exit:
- FT_UNUSED( error );
- FT_FRAME_EXIT();
- return result;
- }
-
-
- static FT_Bool
- _tt_check_patents_in_table( FT_Face face,
- FT_ULong tag )
- {
- FT_Stream stream = face->stream;
- FT_Error error = FT_Err_Ok;
- FT_Service_SFNT_Table service;
- FT_Bool result = FALSE;
-
-
- FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE );
-
- if ( service )
- {
- FT_UInt i = 0;
- FT_ULong tag_i = 0, offset_i = 0, length_i = 0;
-
-
- for ( i = 0; !error && tag_i != tag ; i++ )
- error = service->table_info( face, i,
- &tag_i, &offset_i, &length_i );
-
- if ( error ||
- FT_STREAM_SEEK( offset_i ) )
- goto Exit;
-
- result = _tt_check_patents_in_range( stream, length_i );
- }
-
- Exit:
- return result;
- }
-
-
- static FT_Bool
- _tt_face_check_patents( FT_Face face )
- {
- FT_Stream stream = face->stream;
- FT_UInt gindex;
- FT_Error error;
- FT_Bool result;
-
- FT_Service_TTGlyf service;
-
-
- result = _tt_check_patents_in_table( face, TTAG_fpgm );
- if ( result )
- goto Exit;
-
- result = _tt_check_patents_in_table( face, TTAG_prep );
- if ( result )
- goto Exit;
-
- FT_FACE_FIND_SERVICE( face, service, TT_GLYF );
- if ( service == NULL )
- goto Exit;
-
- for ( gindex = 0; gindex < (FT_UInt)face->num_glyphs; gindex++ )
- {
- FT_ULong offset, num_ins, size;
- FT_Int num_contours;
-
-
- offset = service->get_location( face, gindex, &size );
- if ( size == 0 )
- continue;
-
- if ( FT_STREAM_SEEK( offset ) ||
- FT_READ_SHORT( num_contours ) )
- continue;
-
- if ( num_contours >= 0 ) /* simple glyph */
- {
- if ( FT_STREAM_SKIP( 8 + num_contours * 2 ) )
- continue;
- }
- else /* compound glyph */
- {
- FT_Bool has_instr = 0;
-
-
- if ( FT_STREAM_SKIP( 8 ) )
- continue;
-
- /* now read each component */
- for (;;)
- {
- FT_UInt flags, toskip;
-
-
- if( FT_READ_USHORT( flags ) )
- break;
-
- toskip = 2 + 1 + 1;
-
- if ( ( flags & ( 1 << 0 ) ) != 0 ) /* ARGS_ARE_WORDS */
- toskip += 2;
-
- if ( ( flags & ( 1 << 3 ) ) != 0 ) /* WE_HAVE_A_SCALE */
- toskip += 2;
- else if ( ( flags & ( 1 << 6 ) ) != 0 ) /* WE_HAVE_X_Y_SCALE */
- toskip += 4;
- else if ( ( flags & ( 1 << 7 ) ) != 0 ) /* WE_HAVE_A_2x2 */
- toskip += 8;
-
- if ( ( flags & ( 1 << 8 ) ) != 0 ) /* WE_HAVE_INSTRUCTIONS */
- has_instr = 1;
-
- if ( FT_STREAM_SKIP( toskip ) )
- goto NextGlyph;
-
- if ( ( flags & ( 1 << 5 ) ) == 0 ) /* MORE_COMPONENTS */
- break;
- }
-
- if ( !has_instr )
- goto NextGlyph;
- }
-
- if ( FT_READ_USHORT( num_ins ) )
- continue;
-
- result = _tt_check_patents_in_range( stream, num_ins );
- if ( result )
- goto Exit;
-
- NextGlyph:
- ;
- }
-
- Exit:
- return result;
- }
-
-
- /* documentation is in freetype.h */
-
- FT_EXPORT_DEF( FT_Bool )
- FT_Face_CheckTrueTypePatents( FT_Face face )
- {
- FT_Bool result = FALSE;
-
-
- if ( face && FT_IS_SFNT( face ) )
- result = _tt_face_check_patents( face );
-
- return result;
- }
-
-
- /* documentation is in freetype.h */
-
- FT_EXPORT_DEF( FT_Bool )
- FT_Face_SetUnpatentedHinting( FT_Face face,
- FT_Bool value )
- {
- FT_Bool result = FALSE;
-
-
-#if defined( TT_CONFIG_OPTION_UNPATENTED_HINTING ) && \
- !defined( TT_CONFIG_OPTION_BYTECODE_INTERPRETER )
- if ( face && FT_IS_SFNT( face ) )
- {
- result = !face->internal->ignore_unpatented_hinter;
- face->internal->ignore_unpatented_hinter = !value;
- }
-#else
- FT_UNUSED( face );
- FT_UNUSED( value );
-#endif
-
- return result;
- }
-
-/* END */
diff --git a/src/truetype/ttdriver.c b/src/truetype/ttdriver.c
index 1ba71f0..0b8465c 100644
--- a/src/truetype/ttdriver.c
+++ b/src/truetype/ttdriver.c
@@ -429,11 +429,7 @@
{
#ifdef TT_USE_BYTECODE_INTERPRETER
-#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
- FT_TRUETYPE_ENGINE_TYPE_UNPATENTED
-#else
FT_TRUETYPE_ENGINE_TYPE_PATENTED
-#endif
#else /* !TT_USE_BYTECODE_INTERPRETER */
diff --git a/src/truetype/ttinterp.c b/src/truetype/ttinterp.c
index 1c1d7de..95c4161 100644
--- a/src/truetype/ttinterp.c
+++ b/src/truetype/ttinterp.c
@@ -85,19 +85,7 @@
#undef FAILURE
#define FAILURE 1
-#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
-#define GUESS_VECTOR( V ) \
- do \
- { \
- if ( exc->face->unpatented_hinting ) \
- { \
- exc->GS.V.x = (FT_F2Dot14)( exc->GS.both_x_axis ? 0x4000 : 0 ); \
- exc->GS.V.y = (FT_F2Dot14)( exc->GS.both_x_axis ? 0 : 0x4000 ); \
- } \
- } while (0)
-#else
#define GUESS_VECTOR( V ) do { } while (0)
-#endif
/*************************************************************************/
@@ -547,10 +535,6 @@
exec->GS.freeVector = exec->GS.projVector;
exec->GS.dualVector = exec->GS.projVector;
-#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
- exec->GS.both_x_axis = TRUE;
-#endif
-
exec->GS.round_state = 1;
exec->GS.loop = 1;
@@ -577,10 +561,6 @@
{ 0x4000, 0 },
{ 0x4000, 0 },
-#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
- TRUE,
-#endif
-
1, 64, 1,
TRUE, 68, 0, 0, 9, 3,
0, FALSE, 0, 1, 1, 1
@@ -1470,16 +1450,6 @@
{
if ( !exc->tt_metrics.ratio )
{
-#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
- if ( exc->face->unpatented_hinting )
- {
- if ( exc->GS.both_x_axis )
- exc->tt_metrics.ratio = exc->tt_metrics.x_ratio;
- else
- exc->tt_metrics.ratio = exc->tt_metrics.y_ratio;
- }
- else
-#endif
{
if ( exc->GS.projVector.y == 0 )
exc->tt_metrics.ratio = exc->tt_metrics.x_ratio;
@@ -1685,10 +1655,6 @@
FT_F26Dot6 v;
-#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
- FT_ASSERT( !exc->face->unpatented_hinting );
-#endif
-
v = exc->GS.freeVector.x;
if ( v != 0 )
@@ -1740,10 +1706,6 @@
FT_F26Dot6 v;
-#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
- FT_ASSERT( !exc->face->unpatented_hinting );
-#endif
-
v = exc->GS.freeVector.x;
if ( v != 0 )
@@ -2336,9 +2298,6 @@
FT_Pos dx,
FT_Pos dy )
{
-#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
- FT_ASSERT( !exc->face->unpatented_hinting );
-#endif
return TT_DotFix14( dx, dy,
exc->GS.projVector.x,
@@ -2441,50 +2400,6 @@
static void
Compute_Funcs( TT_ExecContext exc )
{
-#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
- if ( exc->face->unpatented_hinting )
- {
- /* If both vectors point rightwards along the x axis, set */
- /* `both-x-axis' true, otherwise set it false. The x values only */
- /* need be tested because the vector has been normalised to a unit */
- /* vector of length 0x4000 = unity. */
- exc->GS.both_x_axis = (FT_Bool)( exc->GS.projVector.x == 0x4000 &&
- exc->GS.freeVector.x == 0x4000 );
-
- /* Throw away projection and freedom vector information */
- /* because the patents don't allow them to be stored. */
- /* The relevant US Patents are 5155805 and 5325479. */
- exc->GS.projVector.x = 0;
- exc->GS.projVector.y = 0;
- exc->GS.freeVector.x = 0;
- exc->GS.freeVector.y = 0;
-
- if ( exc->GS.both_x_axis )
- {
- exc->func_project = Project_x;
- exc->func_move = Direct_Move_X;
- exc->func_move_orig = Direct_Move_Orig_X;
- }
- else
- {
- exc->func_project = Project_y;
- exc->func_move = Direct_Move_Y;
- exc->func_move_orig = Direct_Move_Orig_Y;
- }
-
- if ( exc->GS.dualVector.x == 0x4000 )
- exc->func_dualproj = Project_x;
- else if ( exc->GS.dualVector.y == 0x4000 )
- exc->func_dualproj = Project_y;
- else
- exc->func_dualproj = Dual_Project;
-
- /* Force recalculation of cached aspect ratio */
- exc->tt_metrics.ratio = 0;
-
- return;
- }
-#endif /* TT_CONFIG_OPTION_UNPATENTED_HINTING */
if ( exc->GS.freeVector.x == 0x4000 )
exc->F_dot_P = exc->GS.projVector.x;
@@ -4426,21 +4341,8 @@
Ins_GPV( TT_ExecContext exc,
FT_Long* args )
{
-#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
- if ( exc->face->unpatented_hinting )
- {
- args[0] = exc->GS.both_x_axis ? 0x4000 : 0;
- args[1] = exc->GS.both_x_axis ? 0 : 0x4000;
- }
- else
- {
- args[0] = exc->GS.projVector.x;
- args[1] = exc->GS.projVector.y;
- }
-#else
args[0] = exc->GS.projVector.x;
args[1] = exc->GS.projVector.y;
-#endif
}
@@ -4454,21 +4356,8 @@
Ins_GFV( TT_ExecContext exc,
FT_Long* args )
{
-#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
- if ( exc->face->unpatented_hinting )
- {
- args[0] = exc->GS.both_x_axis ? 0x4000 : 0;
- args[1] = exc->GS.both_x_axis ? 0 : 0x4000;
- }
- else
- {
- args[0] = exc->GS.freeVector.x;
- args[1] = exc->GS.freeVector.y;
- }
-#else
args[0] = exc->GS.freeVector.x;
args[1] = exc->GS.freeVector.y;
-#endif
}
@@ -5387,22 +5276,6 @@
d = PROJECT( zp.cur + p, zp.org + p );
-#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
- if ( exc->face->unpatented_hinting )
- {
- if ( exc->GS.both_x_axis )
- {
- *x = d;
- *y = 0;
- }
- else
- {
- *x = 0;
- *y = d;
- }
- }
- else
-#endif
{
*x = FT_MulDiv( d, (FT_Long)exc->GS.freeVector.x, exc->F_dot_P );
*y = FT_MulDiv( d, (FT_Long)exc->GS.freeVector.y, exc->F_dot_P );
@@ -5419,24 +5292,6 @@
FT_F26Dot6 dy,
FT_Bool touch )
{
-#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
- if ( exc->face->unpatented_hinting )
- {
- if ( exc->GS.both_x_axis )
- {
- exc->zp2.cur[point].x += dx;
- if ( touch )
- exc->zp2.tags[point] |= FT_CURVE_TAG_TOUCH_X;
- }
- else
- {
- exc->zp2.cur[point].y += dy;
- if ( touch )
- exc->zp2.tags[point] |= FT_CURVE_TAG_TOUCH_Y;
- }
- return;
- }
-#endif
if ( exc->GS.freeVector.x != 0 )
{
@@ -5640,22 +5495,6 @@
goto Fail;
}
-#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
- if ( exc->face->unpatented_hinting )
- {
- if ( exc->GS.both_x_axis )
- {
- dx = (FT_UInt32)args[0];
- dy = 0;
- }
- else
- {
- dx = 0;
- dy = (FT_UInt32)args[0];
- }
- }
- else
-#endif
{
dx = TT_MulFix14( args[0], exc->GS.freeVector.x );
dy = TT_MulFix14( args[0], exc->GS.freeVector.y );
@@ -7016,26 +6855,6 @@
#endif /* TT_CONFIG_OPTION_SUBPIXEL_HINTING */
-#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
- /* Delta hinting is covered by US Patent 5159668. */
- if ( exc->face->unpatented_hinting )
- {
- FT_Long n = args[0] * 2;
-
-
- if ( exc->args < n )
- {
- if ( exc->pedantic_hinting )
- exc->error = FT_THROW( Too_Few_Arguments );
- n = exc->args;
- }
-
- exc->args -= n;
- exc->new_top = exc->args;
- return;
- }
-#endif
-
P = (FT_ULong)exc->func_cur_ppem( exc );
nump = (FT_ULong)args[0]; /* some points theoretically may occur more
than once, thus UShort isn't enough */
@@ -7177,26 +6996,6 @@
FT_Long B;
-#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
- /* Delta hinting is covered by US Patent 5159668. */
- if ( exc->face->unpatented_hinting )
- {
- FT_Long n = args[0] * 2;
-
-
- if ( exc->args < n )
- {
- if ( exc->pedantic_hinting )
- exc->error = FT_THROW( Too_Few_Arguments );
- n = exc->args;
- }
-
- exc->args -= n;
- exc->new_top = exc->args;
- return;
- }
-#endif
-
P = (FT_ULong)exc->func_cur_ppem( exc );
nump = (FT_ULong)args[0];
diff --git a/src/truetype/ttobjs.c b/src/truetype/ttobjs.c
index b0d9f28..289918d 100644
--- a/src/truetype/ttobjs.c
+++ b/src/truetype/ttobjs.c
@@ -32,10 +32,6 @@
#include "ttinterp.h"
#endif
-#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
-#include FT_TRUETYPE_UNPATENTED_H
-#endif
-
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
#include "ttgxvar.h"
#endif
@@ -676,29 +672,6 @@
#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */
-#if defined( TT_CONFIG_OPTION_UNPATENTED_HINTING ) && \
- !defined( TT_CONFIG_OPTION_BYTECODE_INTERPRETER )
-
- {
- FT_Bool unpatented_hinting;
- int i;
-
-
- /* Determine whether unpatented hinting is to be used for this face. */
- unpatented_hinting = FT_BOOL
- ( library->debug_hooks[FT_DEBUG_HOOK_UNPATENTED_HINTING] != NULL );
-
- for ( i = 0; i < num_params && !face->unpatented_hinting; i++ )
- if ( params[i].tag == FT_PARAM_TAG_UNPATENTED_HINTING )
- unpatented_hinting = TRUE;
-
- if ( !unpatented_hinting )
- ttface->internal->ignore_unpatented_hinter = TRUE;
- }
-
-#endif /* TT_CONFIG_OPTION_UNPATENTED_HINTING &&
- !TT_CONFIG_OPTION_BYTECODE_INTERPRETER */
-
/* initialize standard glyph loading routines */
TT_Init_Glyph_Loading( face );
diff --git a/src/truetype/ttobjs.h b/src/truetype/ttobjs.h
index 9396089..efcf40d 100644
--- a/src/truetype/ttobjs.h
+++ b/src/truetype/ttobjs.h
@@ -72,10 +72,6 @@ FT_BEGIN_HEADER
FT_UnitVector projVector;
FT_UnitVector freeVector;
-#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
- FT_Bool both_x_axis;
-#endif
-
FT_Long loop;
FT_F26Dot6 minimum_distance;
FT_Int round_state;
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