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diff --git a/nx-X11/extras/freetype2/src/base/ftoutln.c b/nx-X11/extras/freetype2/src/base/ftoutln.c
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+/***************************************************************************/
+/* */
+/* ftoutln.c */
+/* */
+/* FreeType outline management (body). */
+/* */
+/* Copyright 1996-2001, 2002, 2003, 2004 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+ /*************************************************************************/
+ /* */
+ /* All functions are declared in freetype.h. */
+ /* */
+ /*************************************************************************/
+
+
+#include <ft2build.h>
+#include FT_OUTLINE_H
+#include FT_INTERNAL_OBJECTS_H
+#include FT_TRIGONOMETRY_H
+
+
+ /*************************************************************************/
+ /* */
+ /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
+ /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
+ /* messages during execution. */
+ /* */
+#undef FT_COMPONENT
+#define FT_COMPONENT trace_outline
+
+
+ static
+ const FT_Outline null_outline = { 0, 0, 0, 0, 0, 0 };
+
+
+ /* documentation is in ftoutln.h */
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Outline_Decompose( FT_Outline* outline,
+ const FT_Outline_Funcs* func_interface,
+ void* user )
+ {
+#undef SCALED
+#define SCALED( x ) ( ( (x) << shift ) - delta )
+
+ FT_Vector v_last;
+ FT_Vector v_control;
+ FT_Vector v_start;
+
+ FT_Vector* point;
+ FT_Vector* limit;
+ char* tags;
+
+ FT_Error error;
+
+ FT_Int n; /* index of contour in outline */
+ FT_UInt first; /* index of first point in contour */
+ FT_Int tag; /* current point's state */
+
+ FT_Int shift;
+ FT_Pos delta;
+
+
+ if ( !outline || !func_interface )
+ return FT_Err_Invalid_Argument;
+
+ shift = func_interface->shift;
+ delta = func_interface->delta;
+ first = 0;
+
+ for ( n = 0; n < outline->n_contours; n++ )
+ {
+ FT_Int last; /* index of last point in contour */
+
+
+ last = outline->contours[n];
+ limit = outline->points + last;
+
+ v_start = outline->points[first];
+ v_last = outline->points[last];
+
+ v_start.x = SCALED( v_start.x ); v_start.y = SCALED( v_start.y );
+ v_last.x = SCALED( v_last.x ); v_last.y = SCALED( v_last.y );
+
+ v_control = v_start;
+
+ point = outline->points + first;
+ tags = outline->tags + first;
+ tag = FT_CURVE_TAG( tags[0] );
+
+ /* A contour cannot start with a cubic control point! */
+ if ( tag == FT_CURVE_TAG_CUBIC )
+ goto Invalid_Outline;
+
+ /* check first point to determine origin */
+ if ( tag == FT_CURVE_TAG_CONIC )
+ {
+ /* first point is conic control. Yes, this happens. */
+ if ( FT_CURVE_TAG( outline->tags[last] ) == FT_CURVE_TAG_ON )
+ {
+ /* start at last point if it is on the curve */
+ v_start = v_last;
+ limit--;
+ }
+ else
+ {
+ /* if both first and last points are conic, */
+ /* start at their middle and record its position */
+ /* for closure */
+ v_start.x = ( v_start.x + v_last.x ) / 2;
+ v_start.y = ( v_start.y + v_last.y ) / 2;
+
+ v_last = v_start;
+ }
+ point--;
+ tags--;
+ }
+
+ error = func_interface->move_to( &v_start, user );
+ if ( error )
+ goto Exit;
+
+ while ( point < limit )
+ {
+ point++;
+ tags++;
+
+ tag = FT_CURVE_TAG( tags[0] );
+ switch ( tag )
+ {
+ case FT_CURVE_TAG_ON: /* emit a single line_to */
+ {
+ FT_Vector vec;
+
+
+ vec.x = SCALED( point->x );
+ vec.y = SCALED( point->y );
+
+ error = func_interface->line_to( &vec, user );
+ if ( error )
+ goto Exit;
+ continue;
+ }
+
+ case FT_CURVE_TAG_CONIC: /* consume conic arcs */
+ v_control.x = SCALED( point->x );
+ v_control.y = SCALED( point->y );
+
+ Do_Conic:
+ if ( point < limit )
+ {
+ FT_Vector vec;
+ FT_Vector v_middle;
+
+
+ point++;
+ tags++;
+ tag = FT_CURVE_TAG( tags[0] );
+
+ vec.x = SCALED( point->x );
+ vec.y = SCALED( point->y );
+
+ if ( tag == FT_CURVE_TAG_ON )
+ {
+ error = func_interface->conic_to( &v_control, &vec, user );
+ if ( error )
+ goto Exit;
+ continue;
+ }
+
+ if ( tag != FT_CURVE_TAG_CONIC )
+ goto Invalid_Outline;
+
+ v_middle.x = ( v_control.x + vec.x ) / 2;
+ v_middle.y = ( v_control.y + vec.y ) / 2;
+
+ error = func_interface->conic_to( &v_control, &v_middle, user );
+ if ( error )
+ goto Exit;
+
+ v_control = vec;
+ goto Do_Conic;
+ }
+
+ error = func_interface->conic_to( &v_control, &v_start, user );
+ goto Close;
+
+ default: /* FT_CURVE_TAG_CUBIC */
+ {
+ FT_Vector vec1, vec2;
+
+
+ if ( point + 1 > limit ||
+ FT_CURVE_TAG( tags[1] ) != FT_CURVE_TAG_CUBIC )
+ goto Invalid_Outline;
+
+ point += 2;
+ tags += 2;
+
+ vec1.x = SCALED( point[-2].x ); vec1.y = SCALED( point[-2].y );
+ vec2.x = SCALED( point[-1].x ); vec2.y = SCALED( point[-1].y );
+
+ if ( point <= limit )
+ {
+ FT_Vector vec;
+
+
+ vec.x = SCALED( point->x );
+ vec.y = SCALED( point->y );
+
+ error = func_interface->cubic_to( &vec1, &vec2, &vec, user );
+ if ( error )
+ goto Exit;
+ continue;
+ }
+
+ error = func_interface->cubic_to( &vec1, &vec2, &v_start, user );
+ goto Close;
+ }
+ }
+ }
+
+ /* close the contour with a line segment */
+ error = func_interface->line_to( &v_start, user );
+
+ Close:
+ if ( error )
+ goto Exit;
+
+ first = last + 1;
+ }
+
+ return 0;
+
+ Exit:
+ return error;
+
+ Invalid_Outline:
+ return FT_Err_Invalid_Outline;
+ }
+
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Outline_New_Internal( FT_Memory memory,
+ FT_UInt numPoints,
+ FT_Int numContours,
+ FT_Outline *anoutline )
+ {
+ FT_Error error;
+
+
+ if ( !anoutline || !memory )
+ return FT_Err_Invalid_Argument;
+
+ *anoutline = null_outline;
+
+ if ( FT_NEW_ARRAY( anoutline->points, numPoints * 2L ) ||
+ FT_NEW_ARRAY( anoutline->tags, numPoints ) ||
+ FT_NEW_ARRAY( anoutline->contours, numContours ) )
+ goto Fail;
+
+ anoutline->n_points = (FT_UShort)numPoints;
+ anoutline->n_contours = (FT_Short)numContours;
+ anoutline->flags |= FT_OUTLINE_OWNER;
+
+ return FT_Err_Ok;
+
+ Fail:
+ anoutline->flags |= FT_OUTLINE_OWNER;
+ FT_Outline_Done_Internal( memory, anoutline );
+
+ return error;
+ }
+
+
+ /* documentation is in ftoutln.h */
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Outline_New( FT_Library library,
+ FT_UInt numPoints,
+ FT_Int numContours,
+ FT_Outline *anoutline )
+ {
+ if ( !library )
+ return FT_Err_Invalid_Library_Handle;
+
+ return FT_Outline_New_Internal( library->memory, numPoints,
+ numContours, anoutline );
+ }
+
+
+ /* documentation is in ftoutln.h */
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Outline_Check( FT_Outline* outline )
+ {
+ if ( outline )
+ {
+ FT_Int n_points = outline->n_points;
+ FT_Int n_contours = outline->n_contours;
+ FT_Int end0, end;
+ FT_Int n;
+
+
+ /* empty glyph? */
+ if ( n_points == 0 && n_contours == 0 )
+ return 0;
+
+ /* check point and contour counts */
+ if ( n_points <= 0 || n_contours <= 0 )
+ goto Bad;
+
+ end0 = end = -1;
+ for ( n = 0; n < n_contours; n++ )
+ {
+ end = outline->contours[n];
+
+ /* note that we don't accept empty contours */
+ if ( end <= end0 || end >= n_points )
+ goto Bad;
+
+ end0 = end;
+ }
+
+ if ( end != n_points - 1 )
+ goto Bad;
+
+ /* XXX: check the tags array */
+ return 0;
+ }
+
+ Bad:
+ return FT_Err_Invalid_Argument;
+ }
+
+
+ /* documentation is in ftoutln.h */
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Outline_Copy( FT_Outline* source,
+ FT_Outline *target )
+ {
+ FT_Int is_owner;
+
+
+ if ( !source || !target ||
+ source->n_points != target->n_points ||
+ source->n_contours != target->n_contours )
+ return FT_Err_Invalid_Argument;
+
+ FT_ARRAY_COPY( target->points, source->points, source->n_points );
+
+ FT_ARRAY_COPY( target->tags, source->tags, source->n_points );
+
+ FT_ARRAY_COPY( target->contours, source->contours, source->n_contours );
+
+ /* copy all flags, except the `FT_OUTLINE_OWNER' one */
+ is_owner = target->flags & FT_OUTLINE_OWNER;
+ target->flags = source->flags;
+
+ target->flags &= ~FT_OUTLINE_OWNER;
+ target->flags |= is_owner;
+
+ return FT_Err_Ok;
+ }
+
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Outline_Done_Internal( FT_Memory memory,
+ FT_Outline* outline )
+ {
+ if ( outline )
+ {
+ if ( outline->flags & FT_OUTLINE_OWNER )
+ {
+ FT_FREE( outline->points );
+ FT_FREE( outline->tags );
+ FT_FREE( outline->contours );
+ }
+ *outline = null_outline;
+
+ return FT_Err_Ok;
+ }
+ else
+ return FT_Err_Invalid_Argument;
+ }
+
+
+ /* documentation is in ftoutln.h */
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Outline_Done( FT_Library library,
+ FT_Outline* outline )
+ {
+ /* check for valid `outline' in FT_Outline_Done_Internal() */
+
+ if ( !library )
+ return FT_Err_Invalid_Library_Handle;
+
+ return FT_Outline_Done_Internal( library->memory, outline );
+ }
+
+
+ /* documentation is in ftoutln.h */
+
+ FT_EXPORT_DEF( void )
+ FT_Outline_Get_CBox( FT_Outline* outline,
+ FT_BBox *acbox )
+ {
+ FT_Pos xMin, yMin, xMax, yMax;
+
+
+ if ( outline && acbox )
+ {
+ if ( outline->n_points == 0 )
+ {
+ xMin = 0;
+ yMin = 0;
+ xMax = 0;
+ yMax = 0;
+ }
+ else
+ {
+ FT_Vector* vec = outline->points;
+ FT_Vector* limit = vec + outline->n_points;
+
+
+ xMin = xMax = vec->x;
+ yMin = yMax = vec->y;
+ vec++;
+
+ for ( ; vec < limit; vec++ )
+ {
+ FT_Pos x, y;
+
+
+ x = vec->x;
+ if ( x < xMin ) xMin = x;
+ if ( x > xMax ) xMax = x;
+
+ y = vec->y;
+ if ( y < yMin ) yMin = y;
+ if ( y > yMax ) yMax = y;
+ }
+ }
+ acbox->xMin = xMin;
+ acbox->xMax = xMax;
+ acbox->yMin = yMin;
+ acbox->yMax = yMax;
+ }
+ }
+
+
+ /* documentation is in ftoutln.h */
+
+ FT_EXPORT_DEF( void )
+ FT_Outline_Translate( FT_Outline* outline,
+ FT_Pos xOffset,
+ FT_Pos yOffset )
+ {
+ FT_UShort n;
+ FT_Vector* vec = outline->points;
+
+
+ for ( n = 0; n < outline->n_points; n++ )
+ {
+ vec->x += xOffset;
+ vec->y += yOffset;
+ vec++;
+ }
+ }
+
+
+ /* documentation is in ftoutln.h */
+
+ FT_EXPORT_DEF( void )
+ FT_Outline_Reverse( FT_Outline* outline )
+ {
+ FT_UShort n;
+ FT_Int first, last;
+
+
+ first = 0;
+
+ for ( n = 0; n < outline->n_contours; n++ )
+ {
+ last = outline->contours[n];
+
+ /* reverse point table */
+ {
+ FT_Vector* p = outline->points + first;
+ FT_Vector* q = outline->points + last;
+ FT_Vector swap;
+
+
+ while ( p < q )
+ {
+ swap = *p;
+ *p = *q;
+ *q = swap;
+ p++;
+ q--;
+ }
+ }
+
+ /* reverse tags table */
+ {
+ char* p = outline->tags + first;
+ char* q = outline->tags + last;
+ char swap;
+
+
+ while ( p < q )
+ {
+ swap = *p;
+ *p = *q;
+ *q = swap;
+ p++;
+ q--;
+ }
+ }
+
+ first = last + 1;
+ }
+
+ outline->flags ^= FT_OUTLINE_REVERSE_FILL;
+ }
+
+
+ /* documentation is in ftoutln.h */
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Outline_Render( FT_Library library,
+ FT_Outline* outline,
+ FT_Raster_Params* params )
+ {
+ FT_Error error;
+ FT_Bool update = 0;
+ FT_Renderer renderer;
+ FT_ListNode node;
+
+
+ if ( !library )
+ return FT_Err_Invalid_Library_Handle;
+
+ if ( !params )
+ return FT_Err_Invalid_Argument;
+
+ renderer = library->cur_renderer;
+ node = library->renderers.head;
+
+ params->source = (void*)outline;
+
+ error = FT_Err_Cannot_Render_Glyph;
+ while ( renderer )
+ {
+ error = renderer->raster_render( renderer->raster, params );
+ if ( !error || FT_ERROR_BASE( error ) != FT_Err_Cannot_Render_Glyph )
+ break;
+
+ /* FT_Err_Cannot_Render_Glyph is returned if the render mode */
+ /* is unsupported by the current renderer for this glyph image */
+ /* format */
+
+ /* now, look for another renderer that supports the same */
+ /* format */
+ renderer = FT_Lookup_Renderer( library, FT_GLYPH_FORMAT_OUTLINE,
+ &node );
+ update = 1;
+ }
+
+ /* if we changed the current renderer for the glyph image format */
+ /* we need to select it as the next current one */
+ if ( !error && update && renderer )
+ FT_Set_Renderer( library, renderer, 0, 0 );
+
+ return error;
+ }
+
+
+ /* documentation is in ftoutln.h */
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Outline_Get_Bitmap( FT_Library library,
+ FT_Outline* outline,
+ FT_Bitmap *abitmap )
+ {
+ FT_Raster_Params params;
+
+
+ if ( !abitmap )
+ return FT_Err_Invalid_Argument;
+
+ /* other checks are delayed to FT_Outline_Render() */
+
+ params.target = abitmap;
+ params.flags = 0;
+
+ if ( abitmap->pixel_mode == FT_PIXEL_MODE_GRAY ||
+ abitmap->pixel_mode == FT_PIXEL_MODE_LCD ||
+ abitmap->pixel_mode == FT_PIXEL_MODE_LCD_V )
+ params.flags |= FT_RASTER_FLAG_AA;
+
+ return FT_Outline_Render( library, outline, &params );
+ }
+
+
+ /* documentation is in ftoutln.h */
+
+ FT_EXPORT_DEF( void )
+ FT_Vector_Transform( FT_Vector* vector,
+ FT_Matrix* matrix )
+ {
+ FT_Pos xz, yz;
+
+
+ if ( !vector || !matrix )
+ return;
+
+ xz = FT_MulFix( vector->x, matrix->xx ) +
+ FT_MulFix( vector->y, matrix->xy );
+
+ yz = FT_MulFix( vector->x, matrix->yx ) +
+ FT_MulFix( vector->y, matrix->yy );
+
+ vector->x = xz;
+ vector->y = yz;
+ }
+
+
+ /* documentation is in ftoutln.h */
+
+ FT_EXPORT_DEF( void )
+ FT_Outline_Transform( FT_Outline* outline,
+ FT_Matrix* matrix )
+ {
+ FT_Vector* vec = outline->points;
+ FT_Vector* limit = vec + outline->n_points;
+
+
+ for ( ; vec < limit; vec++ )
+ FT_Vector_Transform( vec, matrix );
+ }
+
+
+ typedef struct FT_OrientationExtremumRec_
+ {
+ FT_Int index;
+ FT_Long pos;
+ FT_Int first;
+ FT_Int last;
+
+ } FT_OrientationExtremumRec;
+
+
+ static FT_Orientation
+ ft_orientation_extremum_compute( FT_OrientationExtremumRec* extremum,
+ FT_Outline* outline )
+ {
+ FT_Vector *point, *first, *last, *prev, *next;
+ FT_Vector* points = outline->points;
+ FT_Angle angle_in, angle_out;
+
+
+ /* compute the previous and next points in the same contour */
+ point = points + extremum->index;
+ first = points + extremum->first;
+ last = points + extremum->last;
+
+ prev = point;
+ next = point;
+
+ do
+ {
+ prev = ( prev == first ) ? last : prev - 1;
+ if ( prev == point )
+ return FT_ORIENTATION_TRUETYPE; /* degenerate case */
+
+ } while ( prev->x != point->x || prev->y != point->y );
+
+ do
+ {
+ next = ( next == last ) ? first : next + 1;
+ if ( next == point )
+ return FT_ORIENTATION_TRUETYPE; /* shouldn't happen */
+
+ } while ( next->x != point->x || next->y != point->y );
+
+ /* now compute the orientation of the `out' vector relative */
+ /* to the `in' vector. */
+ angle_in = FT_Atan2( point->x - prev->x, point->y - prev->y );
+ angle_out = FT_Atan2( next->x - point->x, next->y - point->y );
+
+ return ( FT_Angle_Diff( angle_in, angle_out ) >= 0 )
+ ? FT_ORIENTATION_TRUETYPE
+ : FT_ORIENTATION_POSTSCRIPT;
+ }
+
+
+ FT_EXPORT_DEF( FT_Orientation )
+ FT_Outline_Get_Orientation( FT_Outline* outline )
+ {
+ FT_Orientation result = FT_ORIENTATION_TRUETYPE;
+
+
+ if ( outline && outline->n_points > 0 )
+ {
+ FT_OrientationExtremumRec xmin, ymin, xmax, ymax;
+ FT_Int n;
+ FT_Int first, last;
+ FT_Vector* points = outline->points;
+
+
+ xmin.pos = ymin.pos = +32768L;
+ xmax.pos = ymax.pos = -32768L;
+
+ xmin.index = ymin.index = xmax.index = ymax.index = -1;
+
+ first = 0;
+ for ( n = 0; n < outline->n_contours; n++, first = last + 1 )
+ {
+ last = outline->contours[n];
+
+ /* skip single-point contours; these are degenerated cases */
+ if ( last > first + 1 )
+ {
+ FT_Int i;
+
+
+ for ( i = first; i < last; i++ )
+ {
+ FT_Pos x = points[i].x;
+ FT_Pos y = points[i].y;
+
+
+ if ( x < xmin.pos )
+ {
+ xmin.pos = x;
+ xmin.index = i;
+ xmin.first = first;
+ xmin.last = last;
+ }
+ if ( x > xmax.pos )
+ {
+ xmax.pos = x;
+ xmax.index = i;
+ xmax.first = first;
+ xmax.last = last;
+ }
+ if ( y < ymin.pos )
+ {
+ ymin.pos = y;
+ ymin.index = i;
+ ymin.first = first;
+ ymin.last = last;
+ }
+ if ( y > ymax.pos )
+ {
+ ymax.pos = y;
+ ymax.index = i;
+ ymax.first = first;
+ ymax.last = last;
+ }
+ }
+ }
+
+ if ( xmin.index >= 0 )
+ result = ft_orientation_extremum_compute( &xmin, outline );
+
+ else if ( xmax.index >= 0 )
+ result = ft_orientation_extremum_compute( &xmax, outline );
+
+ else if ( ymin.index >= 0 )
+ result = ft_orientation_extremum_compute( &ymin, outline );
+
+ else if ( ymax.index >= 0 )
+ result = ft_orientation_extremum_compute( &ymax, outline );
+ }
+ }
+
+ return result;
+ }
+
+
+/* END */
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