1049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/***************************************************************************/ 2049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 3049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* ftoutln.c */ 4049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 5049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* FreeType outline management (body). */ 6049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 7a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang/* Copyright 1996-2008, 2010, 2012-2013 by */ 8049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* David Turner, Robert Wilhelm, and Werner Lemberg. */ 9049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 10049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* This file is part of the FreeType project, and may only be used, */ 11049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* modified, and distributed under the terms of the FreeType project */ 12049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ 13049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* this file you indicate that you have read the license and */ 14049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* understand and accept it fully. */ 15049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* */ 16049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/***************************************************************************/ 17049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 18049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 19049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 20049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 21049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* All functions are declared in freetype.h. */ 22049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 23049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 24049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 25049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 26049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include <ft2build.h> 27049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_OUTLINE_H 28049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_INTERNAL_OBJECTS_H 29a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang#include FT_INTERNAL_CALC_H 300a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project#include FT_INTERNAL_DEBUG_H 31049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#include FT_TRIGONOMETRY_H 32049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 33049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 34049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /*************************************************************************/ 35049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 36049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ 37049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ 38049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* messages during execution. */ 39049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 40049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#undef FT_COMPONENT 41049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define FT_COMPONENT trace_outline 42049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 43049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 44049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static 45049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project const FT_Outline null_outline = { 0, 0, 0, 0, 0, 0 }; 46049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 47049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 48049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* documentation is in ftoutln.h */ 49049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 50049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_EXPORT_DEF( FT_Error ) 51049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline_Decompose( FT_Outline* outline, 52049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project const FT_Outline_Funcs* func_interface, 53049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project void* user ) 54049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 55049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#undef SCALED 56049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define SCALED( x ) ( ( (x) << shift ) - delta ) 57049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 58049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector v_last; 59049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector v_control; 60049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector v_start; 61049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 62049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* point; 63049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* limit; 64049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project char* tags; 65049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 66049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 67049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 68049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int n; /* index of contour in outline */ 69049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt first; /* index of first point in contour */ 70049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int tag; /* current point's state */ 71049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 72049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int shift; 73049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos delta; 74049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 75049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 76049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !outline || !func_interface ) 77a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang return FT_THROW( Invalid_Argument ); 78049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 79049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project shift = func_interface->shift; 80049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project delta = func_interface->delta; 81049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project first = 0; 82049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 83049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( n = 0; n < outline->n_contours; n++ ) 84049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 85049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int last; /* index of last point in contour */ 86049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 87049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 880a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE5(( "FT_Outline_Decompose: Outline %d\n", n )); 890a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project 90049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project last = outline->contours[n]; 91049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( last < 0 ) 92049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Invalid_Outline; 93049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project limit = outline->points + last; 94049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 950a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project v_start = outline->points[first]; 960a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project v_start.x = SCALED( v_start.x ); 970a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project v_start.y = SCALED( v_start.y ); 98049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 990a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project v_last = outline->points[last]; 1000a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project v_last.x = SCALED( v_last.x ); 1010a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project v_last.y = SCALED( v_last.y ); 102049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 103049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project v_control = v_start; 104049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 105049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project point = outline->points + first; 1060a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project tags = outline->tags + first; 107049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tag = FT_CURVE_TAG( tags[0] ); 108049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 109049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* A contour cannot start with a cubic control point! */ 110049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( tag == FT_CURVE_TAG_CUBIC ) 111049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Invalid_Outline; 112049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 113049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check first point to determine origin */ 114049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( tag == FT_CURVE_TAG_CONIC ) 115049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 116049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* first point is conic control. Yes, this happens. */ 117049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_CURVE_TAG( outline->tags[last] ) == FT_CURVE_TAG_ON ) 118049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 119049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* start at last point if it is on the curve */ 120049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project v_start = v_last; 121049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project limit--; 122049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 123049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 124049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 125049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* if both first and last points are conic, */ 126049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* start at their middle and record its position */ 127049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* for closure */ 128049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project v_start.x = ( v_start.x + v_last.x ) / 2; 129049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project v_start.y = ( v_start.y + v_last.y ) / 2; 130049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 131049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project v_last = v_start; 132049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 133049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project point--; 134049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tags--; 135049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 136049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1370a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE5(( " move to (%.2f, %.2f)\n", 1380a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project v_start.x / 64.0, v_start.y / 64.0 )); 139049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = func_interface->move_to( &v_start, user ); 140049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 141049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 142049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 143049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project while ( point < limit ) 144049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 145049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project point++; 146049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tags++; 147049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 148049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tag = FT_CURVE_TAG( tags[0] ); 149049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project switch ( tag ) 150049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 151049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case FT_CURVE_TAG_ON: /* emit a single line_to */ 152049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 153049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector vec; 154049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 155049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 156049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec.x = SCALED( point->x ); 157049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec.y = SCALED( point->y ); 158049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1590a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE5(( " line to (%.2f, %.2f)\n", 1600a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project vec.x / 64.0, vec.y / 64.0 )); 161049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = func_interface->line_to( &vec, user ); 162049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 163049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 164049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 165049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 166049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 167049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project case FT_CURVE_TAG_CONIC: /* consume conic arcs */ 168049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project v_control.x = SCALED( point->x ); 169049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project v_control.y = SCALED( point->y ); 170049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 171049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Do_Conic: 172049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( point < limit ) 173049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 174049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector vec; 175049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector v_middle; 176049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 177049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 178049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project point++; 179049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tags++; 180049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tag = FT_CURVE_TAG( tags[0] ); 181049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 182049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec.x = SCALED( point->x ); 183049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec.y = SCALED( point->y ); 184049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 185049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( tag == FT_CURVE_TAG_ON ) 186049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1870a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE5(( " conic to (%.2f, %.2f)" 1880a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project " with control (%.2f, %.2f)\n", 1890a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project vec.x / 64.0, vec.y / 64.0, 1900a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project v_control.x / 64.0, v_control.y / 64.0 )); 191049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = func_interface->conic_to( &v_control, &vec, user ); 192049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 193049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 194049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 195049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 196049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 197049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( tag != FT_CURVE_TAG_CONIC ) 198049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Invalid_Outline; 199049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 200049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project v_middle.x = ( v_control.x + vec.x ) / 2; 201049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project v_middle.y = ( v_control.y + vec.y ) / 2; 202049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2030a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE5(( " conic to (%.2f, %.2f)" 2040a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project " with control (%.2f, %.2f)\n", 2050a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project v_middle.x / 64.0, v_middle.y / 64.0, 2060a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project v_control.x / 64.0, v_control.y / 64.0 )); 207049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = func_interface->conic_to( &v_control, &v_middle, user ); 208049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 209049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 210049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 211049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project v_control = vec; 212049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Do_Conic; 213049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 214049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2150a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE5(( " conic to (%.2f, %.2f)" 2160a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project " with control (%.2f, %.2f)\n", 2170a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project v_start.x / 64.0, v_start.y / 64.0, 2180a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project v_control.x / 64.0, v_control.y / 64.0 )); 219049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = func_interface->conic_to( &v_control, &v_start, user ); 220049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Close; 221049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 222049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project default: /* FT_CURVE_TAG_CUBIC */ 223049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 224049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector vec1, vec2; 225049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 226049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 227049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( point + 1 > limit || 228049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_CURVE_TAG( tags[1] ) != FT_CURVE_TAG_CUBIC ) 229049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Invalid_Outline; 230049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 231049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project point += 2; 232049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project tags += 2; 233049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2340a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project vec1.x = SCALED( point[-2].x ); 2350a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project vec1.y = SCALED( point[-2].y ); 2360a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project 2370a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project vec2.x = SCALED( point[-1].x ); 2380a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project vec2.y = SCALED( point[-1].y ); 239049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 240049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( point <= limit ) 241049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 242049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector vec; 243049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 244049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 245049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec.x = SCALED( point->x ); 246049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec.y = SCALED( point->y ); 247049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2480a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE5(( " cubic to (%.2f, %.2f)" 2490a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project " with controls (%.2f, %.2f) and (%.2f, %.2f)\n", 2500a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project vec.x / 64.0, vec.y / 64.0, 2510a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project vec1.x / 64.0, vec1.y / 64.0, 2520a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project vec2.x / 64.0, vec2.y / 64.0 )); 253049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = func_interface->cubic_to( &vec1, &vec2, &vec, user ); 254049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 255049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 256049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 257049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 258049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2590a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE5(( " cubic to (%.2f, %.2f)" 2600a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project " with controls (%.2f, %.2f) and (%.2f, %.2f)\n", 2610a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project v_start.x / 64.0, v_start.y / 64.0, 2620a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project vec1.x / 64.0, vec1.y / 64.0, 2630a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project vec2.x / 64.0, vec2.y / 64.0 )); 264049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = func_interface->cubic_to( &vec1, &vec2, &v_start, user ); 265049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Close; 266049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 267049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 268049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 269049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 270049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* close the contour with a line segment */ 2710a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE5(( " line to (%.2f, %.2f)\n", 2720a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project v_start.x / 64.0, v_start.y / 64.0 )); 273049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = func_interface->line_to( &v_start, user ); 274049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 275049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Close: 276049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( error ) 277049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Exit; 278049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 279049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project first = last + 1; 280049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 281049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 2820a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE5(( "FT_Outline_Decompose: Done\n", n )); 2830a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project return FT_Err_Ok; 284049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 285049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Exit: 2860a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_TRACE5(( "FT_Outline_Decompose: Error %d\n", error )); 287049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 288049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 289049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Invalid_Outline: 290a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang return FT_THROW( Invalid_Outline ); 291049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 292049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 293049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 294049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_EXPORT_DEF( FT_Error ) 295049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline_New_Internal( FT_Memory memory, 296049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt numPoints, 297049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int numContours, 298049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline *anoutline ) 299049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 300049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 301049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 302049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 303049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !anoutline || !memory ) 304a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang return FT_THROW( Invalid_Argument ); 305049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 306049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *anoutline = null_outline; 307049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 308a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang if ( numContours < 0 || 309a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang (FT_UInt)numContours > numPoints ) 310a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang return FT_THROW( Invalid_Argument ); 311a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang 312a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang if ( numPoints > FT_OUTLINE_POINTS_MAX ) 313a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang return FT_THROW( Array_Too_Large ); 314a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang 315295ffce55e0198e7a9f7d46b33f5c2b4147bf821David 'Digit' Turner if ( FT_NEW_ARRAY( anoutline->points, numPoints ) || 316aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich FT_NEW_ARRAY( anoutline->tags, numPoints ) || 317aacb8e1368a883fcbc9fe64fd0e460cef9c9b20cNick Kralevich FT_NEW_ARRAY( anoutline->contours, numContours ) ) 318049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Fail; 319049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 320049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project anoutline->n_points = (FT_UShort)numPoints; 321049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project anoutline->n_contours = (FT_Short)numContours; 322049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project anoutline->flags |= FT_OUTLINE_OWNER; 323049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 324049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return FT_Err_Ok; 325049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 326049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Fail: 327049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project anoutline->flags |= FT_OUTLINE_OWNER; 328049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline_Done_Internal( memory, anoutline ); 329049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 330049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 331049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 332049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 333049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 334049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* documentation is in ftoutln.h */ 335049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 336049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_EXPORT_DEF( FT_Error ) 337049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline_New( FT_Library library, 338049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt numPoints, 339049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int numContours, 340049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline *anoutline ) 341049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 342049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !library ) 343a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang return FT_THROW( Invalid_Library_Handle ); 344049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 345049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return FT_Outline_New_Internal( library->memory, numPoints, 346049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project numContours, anoutline ); 347049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 348049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 349049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 350049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* documentation is in ftoutln.h */ 351049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 352049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_EXPORT_DEF( FT_Error ) 353049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline_Check( FT_Outline* outline ) 354049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 355049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( outline ) 356049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 357049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int n_points = outline->n_points; 358049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int n_contours = outline->n_contours; 359049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int end0, end; 360049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int n; 361049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 362049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 363049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* empty glyph? */ 364049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( n_points == 0 && n_contours == 0 ) 365049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return 0; 366049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 367049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check point and contour counts */ 368049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( n_points <= 0 || n_contours <= 0 ) 369049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Bad; 370049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 371049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project end0 = end = -1; 372049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( n = 0; n < n_contours; n++ ) 373049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 374049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project end = outline->contours[n]; 375049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 376049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* note that we don't accept empty contours */ 377049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( end <= end0 || end >= n_points ) 378049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Bad; 379049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 380049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project end0 = end; 381049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 382049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 383049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( end != n_points - 1 ) 384049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project goto Bad; 385049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 386049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* XXX: check the tags array */ 387049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return 0; 388049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 389049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 390049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project Bad: 391a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang return FT_THROW( Invalid_Argument ); 392049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 393049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 394049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 395049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* documentation is in ftoutln.h */ 396049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 397049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_EXPORT_DEF( FT_Error ) 398049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline_Copy( const FT_Outline* source, 399049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline *target ) 400049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 401049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int is_owner; 402049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 403049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 404049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !source || !target || 405049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project source->n_points != target->n_points || 406049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project source->n_contours != target->n_contours ) 407a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang return FT_THROW( Invalid_Argument ); 408049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 409049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( source == target ) 410049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return FT_Err_Ok; 411049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 412049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ARRAY_COPY( target->points, source->points, source->n_points ); 413049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 414049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ARRAY_COPY( target->tags, source->tags, source->n_points ); 415049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 416049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ARRAY_COPY( target->contours, source->contours, source->n_contours ); 417049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 418049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* copy all flags, except the `FT_OUTLINE_OWNER' one */ 419049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project is_owner = target->flags & FT_OUTLINE_OWNER; 420049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project target->flags = source->flags; 421049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 422049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project target->flags &= ~FT_OUTLINE_OWNER; 423049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project target->flags |= is_owner; 424049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 425049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return FT_Err_Ok; 426049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 427049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 428049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 429049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_EXPORT_DEF( FT_Error ) 430049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline_Done_Internal( FT_Memory memory, 431049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline* outline ) 432049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 433049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( memory && outline ) 434049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 435049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( outline->flags & FT_OUTLINE_OWNER ) 436049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 437049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FREE( outline->points ); 438049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FREE( outline->tags ); 439049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_FREE( outline->contours ); 440049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 441049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *outline = null_outline; 442049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 443049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return FT_Err_Ok; 444049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 445049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 446a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang return FT_THROW( Invalid_Argument ); 447049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 448049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 449049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 450049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* documentation is in ftoutln.h */ 451049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 452049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_EXPORT_DEF( FT_Error ) 453049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline_Done( FT_Library library, 454049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline* outline ) 455049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 456049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check for valid `outline' in FT_Outline_Done_Internal() */ 457049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 458049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !library ) 459a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang return FT_THROW( Invalid_Library_Handle ); 460049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 461049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return FT_Outline_Done_Internal( library->memory, outline ); 462049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 463049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 464049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 465049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* documentation is in ftoutln.h */ 466049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 467049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_EXPORT_DEF( void ) 468049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline_Get_CBox( const FT_Outline* outline, 469049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_BBox *acbox ) 470049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 471049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos xMin, yMin, xMax, yMax; 472049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 473049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 474049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( outline && acbox ) 475049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 476049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( outline->n_points == 0 ) 477049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 478049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project xMin = 0; 479049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project yMin = 0; 480049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project xMax = 0; 481049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project yMax = 0; 482049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 483049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 484049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 485049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* vec = outline->points; 486049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* limit = vec + outline->n_points; 487049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 488049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 489049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project xMin = xMax = vec->x; 490049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project yMin = yMax = vec->y; 491049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec++; 492049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 493049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ; vec < limit; vec++ ) 494049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 495049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos x, y; 496049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 497049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 498049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project x = vec->x; 499049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( x < xMin ) xMin = x; 500049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( x > xMax ) xMax = x; 501049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 502049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project y = vec->y; 503049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( y < yMin ) yMin = y; 504049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( y > yMax ) yMax = y; 505049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 506049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 507049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project acbox->xMin = xMin; 508049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project acbox->xMax = xMax; 509049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project acbox->yMin = yMin; 510049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project acbox->yMax = yMax; 511049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 512049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 513049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 514049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 515049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* documentation is in ftoutln.h */ 516049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 517049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_EXPORT_DEF( void ) 518049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline_Translate( const FT_Outline* outline, 519049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos xOffset, 520049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos yOffset ) 521049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 522049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UShort n; 523049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* vec; 524049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 525049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 526049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !outline ) 527049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return; 528049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 529049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec = outline->points; 530049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 531049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( n = 0; n < outline->n_points; n++ ) 532049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 533049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec->x += xOffset; 534049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec->y += yOffset; 535049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec++; 536049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 537049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 538049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 539049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 540049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* documentation is in ftoutln.h */ 541049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 542049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_EXPORT_DEF( void ) 543049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline_Reverse( FT_Outline* outline ) 544049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 545049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UShort n; 546049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int first, last; 547049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 548049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 549049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !outline ) 550049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return; 551049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 552049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project first = 0; 553049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 554049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( n = 0; n < outline->n_contours; n++ ) 555049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 556049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project last = outline->contours[n]; 557049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 558049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* reverse point table */ 559049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 560049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* p = outline->points + first; 561049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* q = outline->points + last; 562049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector swap; 563049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 564049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 565049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project while ( p < q ) 566049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 567049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project swap = *p; 568049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *p = *q; 569049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *q = swap; 570049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project p++; 571049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project q--; 572049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 573049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 574049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 575049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* reverse tags table */ 576049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 577049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project char* p = outline->tags + first; 578049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project char* q = outline->tags + last; 579049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project char swap; 580049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 581049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 582049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project while ( p < q ) 583049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 584049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project swap = *p; 585049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *p = *q; 586049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project *q = swap; 587049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project p++; 588049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project q--; 589049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 590049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 591049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 592049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project first = last + 1; 593049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 594049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 595049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project outline->flags ^= FT_OUTLINE_REVERSE_FILL; 596049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 597049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 598049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 599049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* documentation is in ftoutln.h */ 600049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 601049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_EXPORT_DEF( FT_Error ) 602049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline_Render( FT_Library library, 603049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline* outline, 604049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Raster_Params* params ) 605049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 606049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Error error; 6070a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project FT_Bool update = FALSE; 608049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Renderer renderer; 609049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_ListNode node; 610049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 611049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 612049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !library ) 613a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang return FT_THROW( Invalid_Library_Handle ); 614049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 615049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !outline || !params ) 616a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang return FT_THROW( Invalid_Argument ); 617049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 618049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project renderer = library->cur_renderer; 619049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project node = library->renderers.head; 620049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 621049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project params->source = (void*)outline; 622049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 623a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang error = FT_ERR( Cannot_Render_Glyph ); 624049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project while ( renderer ) 625049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 626049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project error = renderer->raster_render( renderer->raster, params ); 627a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang if ( !error || FT_ERR_NEQ( error, Cannot_Render_Glyph ) ) 628049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project break; 629049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 630049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* FT_Err_Cannot_Render_Glyph is returned if the render mode */ 631049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* is unsupported by the current renderer for this glyph image */ 632049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* format */ 633049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 634049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* now, look for another renderer that supports the same */ 635049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* format */ 636049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project renderer = FT_Lookup_Renderer( library, FT_GLYPH_FORMAT_OUTLINE, 637049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project &node ); 6380a9d06e2b5cf75c3d6ba958026bfdf4745f576d6The Android Open Source Project update = TRUE; 639049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 640049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 641049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* if we changed the current renderer for the glyph image format */ 642049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* we need to select it as the next current one */ 643049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !error && update && renderer ) 644049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Set_Renderer( library, renderer, 0, 0 ); 645049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 646049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return error; 647049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 648049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 649049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 650049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* documentation is in ftoutln.h */ 651049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 652049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_EXPORT_DEF( FT_Error ) 653049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline_Get_Bitmap( FT_Library library, 654049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline* outline, 655049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project const FT_Bitmap *abitmap ) 656049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 657049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Raster_Params params; 658049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 659049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 660049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !abitmap ) 661a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang return FT_THROW( Invalid_Argument ); 662049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 663049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* other checks are delayed to FT_Outline_Render() */ 664049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 665049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project params.target = abitmap; 666049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project params.flags = 0; 667049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 668049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( abitmap->pixel_mode == FT_PIXEL_MODE_GRAY || 669049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project abitmap->pixel_mode == FT_PIXEL_MODE_LCD || 670049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project abitmap->pixel_mode == FT_PIXEL_MODE_LCD_V ) 671049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project params.flags |= FT_RASTER_FLAG_AA; 672049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 673049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return FT_Outline_Render( library, outline, ¶ms ); 674049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 675049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 676049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 677049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* documentation is in freetype.h */ 678049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 679049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_EXPORT_DEF( void ) 680049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector_Transform( FT_Vector* vector, 681049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project const FT_Matrix* matrix ) 682049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 683049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos xz, yz; 684049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 685049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 686049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !vector || !matrix ) 687049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return; 688049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 689049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project xz = FT_MulFix( vector->x, matrix->xx ) + 690049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_MulFix( vector->y, matrix->xy ); 691049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 692049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project yz = FT_MulFix( vector->x, matrix->yx ) + 693049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_MulFix( vector->y, matrix->yy ); 694049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 695049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vector->x = xz; 696049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vector->y = yz; 697049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 698049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 699049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 700049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* documentation is in ftoutln.h */ 701049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 702049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_EXPORT_DEF( void ) 703049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline_Transform( const FT_Outline* outline, 704049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project const FT_Matrix* matrix ) 705049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 706049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* vec; 707049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* limit; 708049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 709049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 710049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !outline || !matrix ) 711049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return; 712049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 713049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project vec = outline->points; 714049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project limit = vec + outline->n_points; 715049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 716049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( ; vec < limit; vec++ ) 717049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector_Transform( vec, matrix ); 718049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 719049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 720049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 721049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#if 0 722049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 723049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#define FT_OUTLINE_GET_CONTOUR( outline, c, first, last ) \ 724049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project do { \ 725049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (first) = ( c > 0 ) ? (outline)->points + \ 726049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (outline)->contours[c - 1] + 1 \ 727049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project : (outline)->points; \ 728049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project (last) = (outline)->points + (outline)->contours[c]; \ 729049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } while ( 0 ) 730049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 731049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 732049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Is a point in some contour? */ 733049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* */ 734049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* We treat every point of the contour as if it */ 735049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* it were ON. That is, we allow false positives, */ 736049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* but disallow false negatives. (XXX really?) */ 737049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Bool 738049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ft_contour_has( FT_Outline* outline, 739049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Short c, 740049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* point ) 741049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 742049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* first; 743049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* last; 744049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* a; 745049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* b; 746049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UInt n = 0; 747049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 748049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 749049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_OUTLINE_GET_CONTOUR( outline, c, first, last ); 750049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 751049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( a = first; a <= last; a++ ) 752049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 753049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos x; 754049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int intersect; 755049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 756049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 757049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project b = ( a == last ) ? first : a + 1; 758049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 759049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project intersect = ( a->y - point->y ) ^ ( b->y - point->y ); 760049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 761049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* a and b are on the same side */ 762049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( intersect >= 0 ) 763049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 764049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( intersect == 0 && a->y == point->y ) 765049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 766049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( ( a->x <= point->x && b->x >= point->x ) || 767049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ( a->x >= point->x && b->x <= point->x ) ) 768049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return 1; 769049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 770049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 771049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 772049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 773049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 774049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project x = a->x + ( b->x - a->x ) * (point->y - a->y ) / ( b->y - a->y ); 775049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 776049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( x < point->x ) 777049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project n++; 778049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( x == point->x ) 779049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return 1; 780049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 781049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 782e3b631da8034f7c6ecc6d809cd9e46d306215c32Xianzhu Wang return n & 1; 783049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 784049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 785049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 786049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Bool 787049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ft_contour_enclosed( FT_Outline* outline, 788049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_UShort c ) 789049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 790049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* first; 791049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* last; 792049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Short i; 793049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 794049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 795049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_OUTLINE_GET_CONTOUR( outline, c, first, last ); 796049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 797049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( i = 0; i < outline->n_contours; i++ ) 798049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 799049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( i != c && ft_contour_has( outline, i, first ) ) 800049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 801049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* pt; 802049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 803049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 804049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( pt = first + 1; pt <= last; pt++ ) 805049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !ft_contour_has( outline, i, pt ) ) 806049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return 0; 807049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 808049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return 1; 809049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 810049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 811049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 812049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return 0; 813049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 814049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 815049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 816049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* This version differs from the public one in that each */ 817049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* part (contour not enclosed in another contour) of the */ 818049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* outline is checked for orientation. This is */ 819049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* necessary for some buggy CJK fonts. */ 820049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project static FT_Orientation 821049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project ft_outline_get_orientation( FT_Outline* outline ) 822049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 823049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Short i; 824049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* first; 825049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* last; 826049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Orientation orient = FT_ORIENTATION_NONE; 827049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 828049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 829049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project first = outline->points; 830049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( i = 0; i < outline->n_contours; i++, first = last + 1 ) 831049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 832049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* point; 833049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* xmin_point; 834049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos xmin; 835049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 836049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 837049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project last = outline->points + outline->contours[i]; 838049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 839049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* skip degenerate contours */ 840049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( last < first + 2 ) 841049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 842049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 843049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( ft_contour_enclosed( outline, i ) ) 844049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project continue; 845049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 846049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project xmin = first->x; 847049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project xmin_point = first; 848049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 849049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( point = first + 1; point <= last; point++ ) 850049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 851049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( point->x < xmin ) 852049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 853049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project xmin = point->x; 854049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project xmin_point = point; 855049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 856049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 857049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 858049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* check the orientation of the contour */ 859049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 860049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* prev; 861049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* next; 862049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Orientation o; 863049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 864049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 865049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project prev = ( xmin_point == first ) ? last : xmin_point - 1; 866049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project next = ( xmin_point == last ) ? first : xmin_point + 1; 867049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 868049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( FT_Atan2( prev->x - xmin_point->x, prev->y - xmin_point->y ) > 869049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Atan2( next->x - xmin_point->x, next->y - xmin_point->y ) ) 870049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project o = FT_ORIENTATION_POSTSCRIPT; 871049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 872049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project o = FT_ORIENTATION_TRUETYPE; 873049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 874049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( orient == FT_ORIENTATION_NONE ) 875049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project orient = o; 876049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else if ( orient != o ) 877049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return FT_ORIENTATION_NONE; 878049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 879049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 880049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 881049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return orient; 882049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 883049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 884049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project#endif /* 0 */ 885049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 886049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 887049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* documentation is in ftoutln.h */ 888049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 889049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_EXPORT_DEF( FT_Error ) 890049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline_Embolden( FT_Outline* outline, 891049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Pos strength ) 892049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 893a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang return FT_Outline_EmboldenXY( outline, strength, strength ); 894a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang } 895a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang 896a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang 897a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang /* documentation is in ftoutln.h */ 898a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang 899a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang FT_EXPORT_DEF( FT_Error ) 900a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang FT_Outline_EmboldenXY( FT_Outline* outline, 901a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang FT_Pos xstrength, 902a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang FT_Pos ystrength ) 903a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang { 904049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector* points; 905049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Vector v_prev, v_first, v_next, v_cur; 906049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int c, n, first; 907049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Int orientation; 908049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 909049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 910049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !outline ) 911a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang return FT_THROW( Invalid_Argument ); 912049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 913a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang xstrength /= 2; 914a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang ystrength /= 2; 915a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang if ( xstrength == 0 && ystrength == 0 ) 916049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return FT_Err_Ok; 917049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 918049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project orientation = FT_Outline_Get_Orientation( outline ); 919049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( orientation == FT_ORIENTATION_NONE ) 920049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 921049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( outline->n_contours ) 922a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang return FT_THROW( Invalid_Argument ); 923049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 924049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return FT_Err_Ok; 925049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 926049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 927049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project points = outline->points; 928049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 929049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project first = 0; 930049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project for ( c = 0; c < outline->n_contours; c++ ) 931049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 932a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang FT_Vector in, out, shift; 933a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang FT_Fixed l_in, l_out, l, q, d; 934a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang int last = outline->contours[c]; 935049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 936049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 937049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project v_first = points[first]; 938049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project v_prev = points[last]; 939049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project v_cur = v_first; 940049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 941a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang /* compute incoming normalized vector */ 942a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang in.x = v_cur.x - v_prev.x; 943a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang in.y = v_cur.y - v_prev.y; 944a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang l_in = FT_Vector_Length( &in ); 945a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang if ( l_in ) 946049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 947a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang in.x = FT_DivFix( in.x, l_in ); 948a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang in.y = FT_DivFix( in.y, l_in ); 949a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang } 950049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 951a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang for ( n = first; n <= last; n++ ) 952a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang { 953049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( n < last ) 954049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project v_next = points[n + 1]; 955049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project else 956049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project v_next = v_first; 957049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 958a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang /* compute outgoing normalized vector */ 959049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project out.x = v_next.x - v_cur.x; 960049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project out.y = v_next.y - v_cur.y; 961a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang l_out = FT_Vector_Length( &out ); 962a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang if ( l_out ) 963a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang { 964a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang out.x = FT_DivFix( out.x, l_out ); 965a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang out.y = FT_DivFix( out.y, l_out ); 966a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang } 967049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 968a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang d = FT_MulFix( in.x, out.x ) + FT_MulFix( in.y, out.y ); 969049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 970a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang /* shift only if turn is less than ~160 degrees */ 971a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang if ( d > -0xF000L ) 972049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 973a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang d = d + 0x10000L; 974049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 975a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang /* shift components are aligned along lateral bisector */ 976a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang /* and directed according to the outline orientation. */ 977a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang shift.x = in.y + out.y; 978a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang shift.y = in.x + out.x; 979a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang 980a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang if ( orientation == FT_ORIENTATION_TRUETYPE ) 981a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang shift.x = -shift.x; 982a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang else 983a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang shift.y = -shift.y; 984a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang 985a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang /* restrict shift magnitude to better handle collapsing segments */ 986a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang q = FT_MulFix( out.x, in.y ) - FT_MulFix( out.y, in.x ); 987a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang if ( orientation == FT_ORIENTATION_TRUETYPE ) 988a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang q = -q; 989a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang 990a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang l = FT_MIN( l_in, l_out ); 991a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang 992a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang /* non-strict inequalities avoid divide-by-zero when q == l == 0 */ 993a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang if ( FT_MulFix( xstrength, q ) <= FT_MulFix( d, l ) ) 994a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang shift.x = FT_MulDiv( shift.x, xstrength, d ); 995a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang else 996a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang shift.x = FT_MulDiv( shift.x, l, q ); 997a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang 998a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang 999a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang if ( FT_MulFix( ystrength, q ) <= FT_MulFix( d, l ) ) 1000a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang shift.y = FT_MulDiv( shift.y, ystrength, d ); 1001a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang else 1002a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang shift.y = FT_MulDiv( shift.y, l, q ); 1003049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1004a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang else 1005a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang shift.x = shift.y = 0; 1006049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1007a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang outline->points[n].x = v_cur.x + xstrength + shift.x; 1008a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang outline->points[n].y = v_cur.y + ystrength + shift.y; 1009049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1010a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang in = out; 1011a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang l_in = l_out; 1012a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang v_cur = v_next; 1013049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1014049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1015049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project first = last + 1; 1016049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1017049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1018049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return FT_Err_Ok; 1019049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1020049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1021049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1022049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* documentation is in ftoutln.h */ 1023049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1024049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_EXPORT_DEF( FT_Orientation ) 1025049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project FT_Outline_Get_Orientation( FT_Outline* outline ) 1026049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1027a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang FT_BBox cbox; 1028a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang FT_Int xshift, yshift; 1029a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang FT_Vector* points; 1030a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang FT_Vector v_prev, v_cur; 1031a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang FT_Int c, n, first; 1032a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang FT_Pos area = 0; 1033049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1034049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1035049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project if ( !outline || outline->n_points <= 0 ) 1036049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project return FT_ORIENTATION_TRUETYPE; 1037049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1038049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* We use the nonzero winding rule to find the orientation. */ 1039049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* Since glyph outlines behave much more `regular' than arbitrary */ 1040049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* cubic or quadratic curves, this test deals with the polygon */ 1041049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project /* only which is spanned up by the control points. */ 1042049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1043a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang FT_Outline_Get_CBox( outline, &cbox ); 1044049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1045a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang xshift = FT_MSB( FT_ABS( cbox.xMax ) | FT_ABS( cbox.xMin ) ) - 14; 1046a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang xshift = FT_MAX( xshift, 0 ); 1047049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1048a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang yshift = FT_MSB( cbox.yMax - cbox.yMin ) - 14; 1049a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang yshift = FT_MAX( yshift, 0 ); 1050049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1051a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang points = outline->points; 1052049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1053a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang first = 0; 1054a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang for ( c = 0; c < outline->n_contours; c++ ) 1055049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1056a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang FT_Int last = outline->contours[c]; 1057049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1058049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1059a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang v_prev = points[last]; 1060049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1061a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang for ( n = first; n <= last; n++ ) 1062049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project { 1063a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang v_cur = points[n]; 1064a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang area += ( ( v_cur.y - v_prev.y ) >> yshift ) * 1065a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang ( ( v_cur.x + v_prev.x ) >> xshift ); 1066a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang v_prev = v_cur; 1067049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1068049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1069a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang first = last + 1; 1070049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1071049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1072a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang if ( area > 0 ) 1073a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang return FT_ORIENTATION_POSTSCRIPT; 1074a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang else if ( area < 0 ) 1075a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang return FT_ORIENTATION_TRUETYPE; 1076a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang else 1077a2b9955b49034a51dfbc8bf9f4e9d312149cecacXianzhu Wang return FT_ORIENTATION_NONE; 1078049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project } 1079049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1080049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project 1081049d6fea481044fcc000e7782e5bc7046fc70844The Android Open Source Project/* END */ 1082