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author | Reinhard Tartler <siretart@tauware.de> | 2011-10-10 17:43:39 +0200 |
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committer | Reinhard Tartler <siretart@tauware.de> | 2011-10-10 17:43:39 +0200 |
commit | f4092abdf94af6a99aff944d6264bc1284e8bdd4 (patch) | |
tree | 2ac1c9cc16ceb93edb2c4382c088dac5aeafdf0f /nx-X11/extras/freetype2/src/base | |
parent | a840692edc9c6d19cd7c057f68e39c7d95eb767d (diff) | |
download | nx-libs-f4092abdf94af6a99aff944d6264bc1284e8bdd4.tar.gz nx-libs-f4092abdf94af6a99aff944d6264bc1284e8bdd4.tar.bz2 nx-libs-f4092abdf94af6a99aff944d6264bc1284e8bdd4.zip |
Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1
Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:
Imported nx-X11-3.1.0-1.tar.gz
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Diffstat (limited to 'nx-X11/extras/freetype2/src/base')
29 files changed, 14609 insertions, 0 deletions
diff --git a/nx-X11/extras/freetype2/src/base/Jamfile b/nx-X11/extras/freetype2/src/base/Jamfile new file mode 100644 index 000000000..d82e65d6d --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/Jamfile @@ -0,0 +1,36 @@ +# FreeType 2 src/base Jamfile (c) 2001, 2002, 2003, 2004 David Turner +# + +SubDir FT2_TOP $(FT2_SRC_DIR) base ; + + +{ + local _sources ; + + if $(FT2_MULTI) + { + _sources = ftutil ftdbgmem ftstream ftcalc fttrigon ftgloadr ftoutln + ftobjs ftnames ftrfork ; + } + else + { + _sources = ftbase ; + } + + Library $(FT2_LIB) : $(_sources).c ; +} + +# Add the optional/replaceable files. +# +Library $(FT2_LIB) : ftsystem.c ftinit.c ftglyph.c ftmm.c ftbdf.c + ftbbox.c ftdebug.c ftxf86.c fttype1.c ftpfr.c + ftstroke.c ftwinfnt.c ; + +# Add Macintosh-specific file to the library when necessary. +# +if $(MAC) +{ + Library $(FT2_LIB) : ftmac.c ; +} + +# end of src/base Jamfile diff --git a/nx-X11/extras/freetype2/src/base/descrip.mms b/nx-X11/extras/freetype2/src/base/descrip.mms new file mode 100644 index 000000000..73bad4d73 --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/descrip.mms @@ -0,0 +1,23 @@ +# +# FreeType 2 base layer compilation rules for VMS +# + + +# Copyright 2001, 2003, 2004 by +# David Turner, Robert Wilhelm, and Werner Lemberg. +# +# This file is part of the FreeType project, and may only be used, modified, +# and distributed under the terms of the FreeType project license, +# LICENSE.TXT. By continuing to use, modify, or distribute this file you +# indicate that you have read the license and understand and accept it +# fully. + + +CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.builds.vms],[--.include],[--.src.base]) + +OBJS=ftbase.obj,ftinit.obj,ftglyph.obj,ftdebug.obj,ftbdf.obj,ftmm.obj,fttype1.obj,ftxf86.obj,ftpfr.obj,ftstroke.obj,ftwinfnt.obj,ftbbox.obj + +all : $(OBJS) + library [--.lib]freetype.olb $(OBJS) + +# EOF diff --git a/nx-X11/extras/freetype2/src/base/ftapi.c b/nx-X11/extras/freetype2/src/base/ftapi.c new file mode 100644 index 000000000..1ef3005e2 --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftapi.c @@ -0,0 +1,121 @@ +/***************************************************************************/ +/* */ +/* ftapi.c */ +/* */ +/* The FreeType compatibility functions (body). */ +/* */ +/* Copyright 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_LIST_H +#include FT_OUTLINE_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_TRUETYPE_TABLES_H +#include FT_OUTLINE_H + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** C O M P A T I B I L I T Y ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + /* backwards compatibility API */ + + FT_BASE_DEF( void ) + FT_New_Memory_Stream( FT_Library library, + FT_Byte* base, + FT_ULong size, + FT_Stream stream ) + { + FT_UNUSED( library ); + + FT_Stream_OpenMemory( stream, base, size ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Seek_Stream( FT_Stream stream, + FT_ULong pos ) + { + return FT_Stream_Seek( stream, pos ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Skip_Stream( FT_Stream stream, + FT_Long distance ) + { + return FT_Stream_Skip( stream, distance ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Read_Stream( FT_Stream stream, + FT_Byte* buffer, + FT_ULong count ) + { + return FT_Stream_Read( stream, buffer, count ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Read_Stream_At( FT_Stream stream, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ) + { + return FT_Stream_ReadAt( stream, pos, buffer, count ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Extract_Frame( FT_Stream stream, + FT_ULong count, + FT_Byte** pbytes ) + { + return FT_Stream_ExtractFrame( stream, count, pbytes ); + } + + + FT_BASE_DEF( void ) + FT_Release_Frame( FT_Stream stream, + FT_Byte** pbytes ) + { + FT_Stream_ReleaseFrame( stream, pbytes ); + } + + FT_BASE_DEF( FT_Error ) + FT_Access_Frame( FT_Stream stream, + FT_ULong count ) + { + return FT_Stream_EnterFrame( stream, count ); + } + + + FT_BASE_DEF( void ) + FT_Forget_Frame( FT_Stream stream ) + { + FT_Stream_ExitFrame( stream ); + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftbase.c b/nx-X11/extras/freetype2/src/base/ftbase.c new file mode 100644 index 000000000..7d5a7fd8e --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftbase.c @@ -0,0 +1,38 @@ +/***************************************************************************/ +/* */ +/* ftbase.c */ +/* */ +/* Single object library component (body only). */ +/* */ +/* 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. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> + +#define FT_MAKE_OPTION_SINGLE_OBJECT + +#include "ftutil.c" +#include "ftdbgmem.c" +#include "ftstream.c" +#include "ftcalc.c" +#include "fttrigon.c" +#include "ftoutln.c" +#include "ftgloadr.c" +#include "ftobjs.c" +#include "ftnames.c" +#include "ftrfork.c" + +#if defined( __APPLE__ ) && !defined ( DARWIN_NO_CARBON ) +#include "ftmac.c" +#endif + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftbbox.c b/nx-X11/extras/freetype2/src/base/ftbbox.c new file mode 100644 index 000000000..888699573 --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftbbox.c @@ -0,0 +1,659 @@ +/***************************************************************************/ +/* */ +/* ftbbox.c */ +/* */ +/* FreeType bbox computation (body). */ +/* */ +/* Copyright 1996-2001, 2002, 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. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This component has a _single_ role: to compute exact outline bounding */ + /* boxes. */ + /* */ + /*************************************************************************/ + + +#include <ft2build.h> +#include FT_BBOX_H +#include FT_IMAGE_H +#include FT_OUTLINE_H +#include FT_INTERNAL_CALC_H + + + typedef struct TBBox_Rec_ + { + FT_Vector last; + FT_BBox bbox; + + } TBBox_Rec; + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* BBox_Move_To */ + /* */ + /* <Description> */ + /* This function is used as a `move_to' and `line_to' emitter during */ + /* FT_Outline_Decompose(). It simply records the destination point */ + /* in `user->last'; no further computations are necessary since we */ + /* use the cbox as the starting bbox which must be refined. */ + /* */ + /* <Input> */ + /* to :: A pointer to the destination vector. */ + /* */ + /* <InOut> */ + /* user :: A pointer to the current walk context. */ + /* */ + /* <Return> */ + /* Always 0. Needed for the interface only. */ + /* */ + static int + BBox_Move_To( FT_Vector* to, + TBBox_Rec* user ) + { + user->last = *to; + + return 0; + } + + +#define CHECK_X( p, bbox ) \ + ( p->x < bbox.xMin || p->x > bbox.xMax ) + +#define CHECK_Y( p, bbox ) \ + ( p->y < bbox.yMin || p->y > bbox.yMax ) + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* BBox_Conic_Check */ + /* */ + /* <Description> */ + /* Finds the extrema of a 1-dimensional conic Bezier curve and update */ + /* a bounding range. This version uses direct computation, as it */ + /* doesn't need square roots. */ + /* */ + /* <Input> */ + /* y1 :: The start coordinate. */ + /* */ + /* y2 :: The coordinate of the control point. */ + /* */ + /* y3 :: The end coordinate. */ + /* */ + /* <InOut> */ + /* min :: The address of the current minimum. */ + /* */ + /* max :: The address of the current maximum. */ + /* */ + static void + BBox_Conic_Check( FT_Pos y1, + FT_Pos y2, + FT_Pos y3, + FT_Pos* min, + FT_Pos* max ) + { + if ( y1 <= y3 && y2 == y1 ) /* flat arc */ + goto Suite; + + if ( y1 < y3 ) + { + if ( y2 >= y1 && y2 <= y3 ) /* ascending arc */ + goto Suite; + } + else + { + if ( y2 >= y3 && y2 <= y1 ) /* descending arc */ + { + y2 = y1; + y1 = y3; + y3 = y2; + goto Suite; + } + } + + y1 = y3 = y1 - FT_MulDiv( y2 - y1, y2 - y1, y1 - 2*y2 + y3 ); + + Suite: + if ( y1 < *min ) *min = y1; + if ( y3 > *max ) *max = y3; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* BBox_Conic_To */ + /* */ + /* <Description> */ + /* This function is used as a `conic_to' emitter during */ + /* FT_Raster_Decompose(). It checks a conic Bezier curve with the */ + /* current bounding box, and computes its extrema if necessary to */ + /* update it. */ + /* */ + /* <Input> */ + /* control :: A pointer to a control point. */ + /* */ + /* to :: A pointer to the destination vector. */ + /* */ + /* <InOut> */ + /* user :: The address of the current walk context. */ + /* */ + /* <Return> */ + /* Always 0. Needed for the interface only. */ + /* */ + /* <Note> */ + /* In the case of a non-monotonous arc, we compute directly the */ + /* extremum coordinates, as it is sufficiently fast. */ + /* */ + static int + BBox_Conic_To( FT_Vector* control, + FT_Vector* to, + TBBox_Rec* user ) + { + /* we don't need to check `to' since it is always an `on' point, thus */ + /* within the bbox */ + + if ( CHECK_X( control, user->bbox ) ) + BBox_Conic_Check( user->last.x, + control->x, + to->x, + &user->bbox.xMin, + &user->bbox.xMax ); + + if ( CHECK_Y( control, user->bbox ) ) + BBox_Conic_Check( user->last.y, + control->y, + to->y, + &user->bbox.yMin, + &user->bbox.yMax ); + + user->last = *to; + + return 0; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* BBox_Cubic_Check */ + /* */ + /* <Description> */ + /* Finds the extrema of a 1-dimensional cubic Bezier curve and */ + /* updates a bounding range. This version uses splitting because we */ + /* don't want to use square roots and extra accuracy. */ + /* */ + /* <Input> */ + /* p1 :: The start coordinate. */ + /* */ + /* p2 :: The coordinate of the first control point. */ + /* */ + /* p3 :: The coordinate of the second control point. */ + /* */ + /* p4 :: The end coordinate. */ + /* */ + /* <InOut> */ + /* min :: The address of the current minimum. */ + /* */ + /* max :: The address of the current maximum. */ + /* */ + +#if 0 + + static void + BBox_Cubic_Check( FT_Pos p1, + FT_Pos p2, + FT_Pos p3, + FT_Pos p4, + FT_Pos* min, + FT_Pos* max ) + { + FT_Pos stack[32*3 + 1], *arc; + + + arc = stack; + + arc[0] = p1; + arc[1] = p2; + arc[2] = p3; + arc[3] = p4; + + do + { + FT_Pos y1 = arc[0]; + FT_Pos y2 = arc[1]; + FT_Pos y3 = arc[2]; + FT_Pos y4 = arc[3]; + + + if ( y1 == y4 ) + { + if ( y1 == y2 && y1 == y3 ) /* flat */ + goto Test; + } + else if ( y1 < y4 ) + { + if ( y2 >= y1 && y2 <= y4 && y3 >= y1 && y3 <= y4 ) /* ascending */ + goto Test; + } + else + { + if ( y2 >= y4 && y2 <= y1 && y3 >= y4 && y3 <= y1 ) /* descending */ + { + y2 = y1; + y1 = y4; + y4 = y2; + goto Test; + } + } + + /* unknown direction -- split the arc in two */ + arc[6] = y4; + arc[1] = y1 = ( y1 + y2 ) / 2; + arc[5] = y4 = ( y4 + y3 ) / 2; + y2 = ( y2 + y3 ) / 2; + arc[2] = y1 = ( y1 + y2 ) / 2; + arc[4] = y4 = ( y4 + y2 ) / 2; + arc[3] = ( y1 + y4 ) / 2; + + arc += 3; + goto Suite; + + Test: + if ( y1 < *min ) *min = y1; + if ( y4 > *max ) *max = y4; + arc -= 3; + + Suite: + ; + } while ( arc >= stack ); + } + +#else + + static void + test_cubic_extrema( FT_Pos y1, + FT_Pos y2, + FT_Pos y3, + FT_Pos y4, + FT_Fixed u, + FT_Pos* min, + FT_Pos* max ) + { + /* FT_Pos a = y4 - 3*y3 + 3*y2 - y1; */ + FT_Pos b = y3 - 2*y2 + y1; + FT_Pos c = y2 - y1; + FT_Pos d = y1; + FT_Pos y; + FT_Fixed uu; + + FT_UNUSED ( y4 ); + + + /* The polynom is */ + /* */ + /* P(x) = a*x^3 + 3b*x^2 + 3c*x + d , */ + /* */ + /* dP/dx = 3a*x^2 + 6b*x + 3c . */ + /* */ + /* However, we also have */ + /* */ + /* dP/dx(u) = 0 , */ + /* */ + /* which implies by subtraction that */ + /* */ + /* P(u) = b*u^2 + 2c*u + d . */ + + if ( u > 0 && u < 0x10000L ) + { + uu = FT_MulFix( u, u ); + y = d + FT_MulFix( c, 2*u ) + FT_MulFix( b, uu ); + + if ( y < *min ) *min = y; + if ( y > *max ) *max = y; + } + } + + + static void + BBox_Cubic_Check( FT_Pos y1, + FT_Pos y2, + FT_Pos y3, + FT_Pos y4, + FT_Pos* min, + FT_Pos* max ) + { + /* always compare first and last points */ + if ( y1 < *min ) *min = y1; + else if ( y1 > *max ) *max = y1; + + if ( y4 < *min ) *min = y4; + else if ( y4 > *max ) *max = y4; + + /* now, try to see if there are split points here */ + if ( y1 <= y4 ) + { + /* flat or ascending arc test */ + if ( y1 <= y2 && y2 <= y4 && y1 <= y3 && y3 <= y4 ) + return; + } + else /* y1 > y4 */ + { + /* descending arc test */ + if ( y1 >= y2 && y2 >= y4 && y1 >= y3 && y3 >= y4 ) + return; + } + + /* There are some split points. Find them. */ + { + FT_Pos a = y4 - 3*y3 + 3*y2 - y1; + FT_Pos b = y3 - 2*y2 + y1; + FT_Pos c = y2 - y1; + FT_Pos d; + FT_Fixed t; + + + /* We need to solve `ax^2+2bx+c' here, without floating points! */ + /* The trick is to normalize to a different representation in order */ + /* to use our 16.16 fixed point routines. */ + /* */ + /* We compute FT_MulFix(b,b) and FT_MulFix(a,c) after normalization. */ + /* These values must fit into a single 16.16 value. */ + /* */ + /* We normalize a, b, and c to `8.16' fixed float values to ensure */ + /* that its product is held in a `16.16' value. */ + + { + FT_ULong t1, t2; + int shift = 0; + + + /* The following computation is based on the fact that for */ + /* any value `y', if `n' is the position of the most */ + /* significant bit of `abs(y)' (starting from 0 for the */ + /* least significant bit), then `y' is in the range */ + /* */ + /* -2^n..2^n-1 */ + /* */ + /* We want to shift `a', `b', and `c' concurrently in order */ + /* to ensure that they all fit in 8.16 values, which maps */ + /* to the integer range `-2^23..2^23-1'. */ + /* */ + /* Necessarily, we need to shift `a', `b', and `c' so that */ + /* the most significant bit of its absolute values is at */ + /* _most_ at position 23. */ + /* */ + /* We begin by computing `t1' as the bitwise `OR' of the */ + /* absolute values of `a', `b', `c'. */ + + t1 = (FT_ULong)( ( a >= 0 ) ? a : -a ); + t2 = (FT_ULong)( ( b >= 0 ) ? b : -b ); + t1 |= t2; + t2 = (FT_ULong)( ( c >= 0 ) ? c : -c ); + t1 |= t2; + + /* Now we can be sure that the most significant bit of `t1' */ + /* is the most significant bit of either `a', `b', or `c', */ + /* depending on the greatest integer range of the particular */ + /* variable. */ + /* */ + /* Next, we compute the `shift', by shifting `t1' as many */ + /* times as necessary to move its MSB to position 23. This */ + /* corresponds to a value of `t1' that is in the range */ + /* 0x40_0000..0x7F_FFFF. */ + /* */ + /* Finally, we shift `a', `b', and `c' by the same amount. */ + /* This ensures that all values are now in the range */ + /* -2^23..2^23, i.e., they are now expressed as 8.16 */ + /* fixed-float numbers. This also means that we are using */ + /* 24 bits of precision to compute the zeros, independently */ + /* of the range of the original polynomial coefficients. */ + /* */ + /* This algorithm should ensure reasonably accurate values */ + /* for the zeros. Note that they are only expressed with */ + /* 16 bits when computing the extrema (the zeros need to */ + /* be in 0..1 exclusive to be considered part of the arc). */ + + if ( t1 == 0 ) /* all coefficients are 0! */ + return; + + if ( t1 > 0x7FFFFFUL ) + { + do + { + shift++; + t1 >>= 1; + + } while ( t1 > 0x7FFFFFUL ); + + /* this loses some bits of precision, but we use 24 of them */ + /* for the computation anyway */ + a >>= shift; + b >>= shift; + c >>= shift; + } + else if ( t1 < 0x400000UL ) + { + do + { + shift++; + t1 <<= 1; + + } while ( t1 < 0x400000UL ); + + a <<= shift; + b <<= shift; + c <<= shift; + } + } + + /* handle a == 0 */ + if ( a == 0 ) + { + if ( b != 0 ) + { + t = - FT_DivFix( c, b ) / 2; + test_cubic_extrema( y1, y2, y3, y4, t, min, max ); + } + } + else + { + /* solve the equation now */ + d = FT_MulFix( b, b ) - FT_MulFix( a, c ); + if ( d < 0 ) + return; + + if ( d == 0 ) + { + /* there is a single split point at -b/a */ + t = - FT_DivFix( b, a ); + test_cubic_extrema( y1, y2, y3, y4, t, min, max ); + } + else + { + /* there are two solutions; we need to filter them */ + d = FT_SqrtFixed( (FT_Int32)d ); + t = - FT_DivFix( b - d, a ); + test_cubic_extrema( y1, y2, y3, y4, t, min, max ); + + t = - FT_DivFix( b + d, a ); + test_cubic_extrema( y1, y2, y3, y4, t, min, max ); + } + } + } + } + +#endif + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* BBox_Cubic_To */ + /* */ + /* <Description> */ + /* This function is used as a `cubic_to' emitter during */ + /* FT_Raster_Decompose(). It checks a cubic Bezier curve with the */ + /* current bounding box, and computes its extrema if necessary to */ + /* update it. */ + /* */ + /* <Input> */ + /* control1 :: A pointer to the first control point. */ + /* */ + /* control2 :: A pointer to the second control point. */ + /* */ + /* to :: A pointer to the destination vector. */ + /* */ + /* <InOut> */ + /* user :: The address of the current walk context. */ + /* */ + /* <Return> */ + /* Always 0. Needed for the interface only. */ + /* */ + /* <Note> */ + /* In the case of a non-monotonous arc, we don't compute directly */ + /* extremum coordinates, we subdivide instead. */ + /* */ + static int + BBox_Cubic_To( FT_Vector* control1, + FT_Vector* control2, + FT_Vector* to, + TBBox_Rec* user ) + { + /* we don't need to check `to' since it is always an `on' point, thus */ + /* within the bbox */ + + if ( CHECK_X( control1, user->bbox ) || + CHECK_X( control2, user->bbox ) ) + BBox_Cubic_Check( user->last.x, + control1->x, + control2->x, + to->x, + &user->bbox.xMin, + &user->bbox.xMax ); + + if ( CHECK_Y( control1, user->bbox ) || + CHECK_Y( control2, user->bbox ) ) + BBox_Cubic_Check( user->last.y, + control1->y, + control2->y, + to->y, + &user->bbox.yMin, + &user->bbox.yMax ); + + user->last = *to; + + return 0; + } + + + /* documentation is in ftbbox.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Outline_Get_BBox( FT_Outline* outline, + FT_BBox *abbox ) + { + FT_BBox cbox; + FT_BBox bbox; + FT_Vector* vec; + FT_UShort n; + + + if ( !abbox ) + return FT_Err_Invalid_Argument; + + if ( !outline ) + return FT_Err_Invalid_Outline; + + /* if outline is empty, return (0,0,0,0) */ + if ( outline->n_points == 0 || outline->n_contours <= 0 ) + { + abbox->xMin = abbox->xMax = 0; + abbox->yMin = abbox->yMax = 0; + return 0; + } + + /* We compute the control box as well as the bounding box of */ + /* all `on' points in the outline. Then, if the two boxes */ + /* coincide, we exit immediately. */ + + vec = outline->points; + bbox.xMin = bbox.xMax = cbox.xMin = cbox.xMax = vec->x; + bbox.yMin = bbox.yMax = cbox.yMin = cbox.yMax = vec->y; + vec++; + + for ( n = 1; n < outline->n_points; n++ ) + { + FT_Pos x = vec->x; + FT_Pos y = vec->y; + + + /* update control box */ + if ( x < cbox.xMin ) cbox.xMin = x; + if ( x > cbox.xMax ) cbox.xMax = x; + + if ( y < cbox.yMin ) cbox.yMin = y; + if ( y > cbox.yMax ) cbox.yMax = y; + + if ( FT_CURVE_TAG( outline->tags[n] ) == FT_CURVE_TAG_ON ) + { + /* update bbox for `on' points only */ + if ( x < bbox.xMin ) bbox.xMin = x; + if ( x > bbox.xMax ) bbox.xMax = x; + + if ( y < bbox.yMin ) bbox.yMin = y; + if ( y > bbox.yMax ) bbox.yMax = y; + } + + vec++; + } + + /* test two boxes for equality */ + if ( cbox.xMin < bbox.xMin || cbox.xMax > bbox.xMax || + cbox.yMin < bbox.yMin || cbox.yMax > bbox.yMax ) + { + /* the two boxes are different, now walk over the outline to */ + /* get the Bezier arc extrema. */ + + static const FT_Outline_Funcs bbox_interface = + { + (FT_Outline_MoveTo_Func) BBox_Move_To, + (FT_Outline_LineTo_Func) BBox_Move_To, + (FT_Outline_ConicTo_Func)BBox_Conic_To, + (FT_Outline_CubicTo_Func)BBox_Cubic_To, + 0, 0 + }; + + FT_Error error; + TBBox_Rec user; + + + user.bbox = bbox; + + error = FT_Outline_Decompose( outline, &bbox_interface, &user ); + if ( error ) + return error; + + *abbox = user.bbox; + } + else + *abbox = bbox; + + return FT_Err_Ok; + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftbdf.c b/nx-X11/extras/freetype2/src/base/ftbdf.c new file mode 100644 index 000000000..d2f133db7 --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftbdf.c @@ -0,0 +1,84 @@ +/***************************************************************************/ +/* */ +/* ftbdf.c */ +/* */ +/* FreeType API for accessing BDF-specific strings (body). */ +/* */ +/* Copyright 2002, 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_BDF_H + + + FT_EXPORT_DEF( FT_Error ) + FT_Get_BDF_Charset_ID( FT_Face face, + const char* *acharset_encoding, + const char* *acharset_registry ) + { + FT_Error error; + const char* encoding = NULL; + const char* registry = NULL; + + + error = FT_Err_Invalid_Argument; + + if ( face ) + { + FT_Service_BDF service; + + + FT_FACE_FIND_SERVICE( face, service, BDF ); + + if ( service && service->get_charset_id ) + error = service->get_charset_id( face, &encoding, ®istry ); + } + + if ( acharset_encoding ) + *acharset_encoding = encoding; + + if ( acharset_registry ) + *acharset_registry = registry; + + return error; + } + + + FT_EXPORT( FT_Error ) + FT_Get_BDF_Property( FT_Face face, + const char* prop_name, + BDF_PropertyRec *aproperty ) + { + FT_Error error; + + + error = FT_Err_Invalid_Argument; + + aproperty->type = BDF_PROPERTY_TYPE_NONE; + + if ( face ) + { + FT_Service_BDF service; + + + FT_FACE_FIND_SERVICE( face, service, BDF ); + + if ( service && service->get_property ) + error = service->get_property( face, prop_name, aproperty ); + } + + return error; + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftcalc.c b/nx-X11/extras/freetype2/src/base/ftcalc.c new file mode 100644 index 000000000..f169642e0 --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftcalc.c @@ -0,0 +1,624 @@ +/***************************************************************************/ +/* */ +/* ftcalc.c */ +/* */ +/* Arithmetic computations (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. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* Support for 1-complement arithmetic has been totally dropped in this */ + /* release. You can still write your own code if you need it. */ + /* */ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* Implementing basic computation routines. */ + /* */ + /* FT_MulDiv(), FT_MulFix(), FT_DivFix(), FT_RoundFix(), FT_CeilFix(), */ + /* and FT_FloorFix() are declared in freetype.h. */ + /* */ + /*************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_CALC_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_OBJECTS_H + + +/* we need to define a 64-bits data type here */ + +#ifdef FT_LONG64 + + typedef FT_INT64 FT_Int64; + +#else + + typedef struct FT_Int64_ + { + FT_UInt32 lo; + FT_UInt32 hi; + + } FT_Int64; + +#endif /* FT_LONG64 */ + + + /*************************************************************************/ + /* */ + /* 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_calc + + + /* The following three functions are available regardless of whether */ + /* FT_LONG64 is defined. */ + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_RoundFix( FT_Fixed a ) + { + return ( a >= 0 ) ? ( a + 0x8000L ) & ~0xFFFFL + : -((-a + 0x8000L ) & ~0xFFFFL ); + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_CeilFix( FT_Fixed a ) + { + return ( a >= 0 ) ? ( a + 0xFFFFL ) & ~0xFFFFL + : -((-a + 0xFFFFL ) & ~0xFFFFL ); + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_FloorFix( FT_Fixed a ) + { + return ( a >= 0 ) ? a & ~0xFFFFL + : -((-a) & ~0xFFFFL ); + } + + + /* documentation is in ftcalc.h */ + + FT_EXPORT_DEF( FT_Int32 ) + FT_Sqrt32( FT_Int32 x ) + { + FT_ULong val, root, newroot, mask; + + + root = 0; + mask = 0x40000000L; + val = (FT_ULong)x; + + do + { + newroot = root + mask; + if ( newroot <= val ) + { + val -= newroot; + root = newroot + mask; + } + + root >>= 1; + mask >>= 2; + + } while ( mask != 0 ); + + return root; + } + + +#ifdef FT_LONG64 + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Long ) + FT_MulDiv( FT_Long a, + FT_Long b, + FT_Long c ) + { + FT_Int s; + FT_Long d; + + + s = 1; + if ( a < 0 ) { a = -a; s = -1; } + if ( b < 0 ) { b = -b; s = -s; } + if ( c < 0 ) { c = -c; s = -s; } + + d = (FT_Long)( c > 0 ? ( (FT_Int64)a * b + ( c >> 1 ) ) / c + : 0x7FFFFFFFL ); + + return ( s > 0 ) ? d : -d; + } + + +#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER + + /* documentation is in ftcalc.h */ + + FT_BASE_DEF( FT_Long ) + FT_MulDiv_No_Round( FT_Long a, + FT_Long b, + FT_Long c ) + { + FT_Int s; + FT_Long d; + + + s = 1; + if ( a < 0 ) { a = -a; s = -1; } + if ( b < 0 ) { b = -b; s = -s; } + if ( c < 0 ) { c = -c; s = -s; } + + d = (FT_Long)( c > 0 ? (FT_Int64)a * b / c + : 0x7FFFFFFFL ); + + return ( s > 0 ) ? d : -d; + } + +#endif /* TT_CONFIG_OPTION_BYTECODE_INTERPRETER */ + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Long ) + FT_MulFix( FT_Long a, + FT_Long b ) + { + FT_Int s = 1; + FT_Long c; + + + if ( a < 0 ) { a = -a; s = -1; } + if ( b < 0 ) { b = -b; s = -s; } + + c = (FT_Long)( ( (FT_Int64)a * b + 0x8000L ) >> 16 ); + return ( s > 0 ) ? c : -c ; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Long ) + FT_DivFix( FT_Long a, + FT_Long b ) + { + FT_Int32 s; + FT_UInt32 q; + + s = 1; + if ( a < 0 ) { a = -a; s = -1; } + if ( b < 0 ) { b = -b; s = -s; } + + if ( b == 0 ) + /* check for division by 0 */ + q = 0x7FFFFFFFL; + else + /* compute result directly */ + q = (FT_UInt32)( ( ( (FT_Int64)a << 16 ) + ( b >> 1 ) ) / b ); + + return ( s < 0 ? -(FT_Long)q : (FT_Long)q ); + } + + +#else /* FT_LONG64 */ + + + static void + ft_multo64( FT_UInt32 x, + FT_UInt32 y, + FT_Int64 *z ) + { + FT_UInt32 lo1, hi1, lo2, hi2, lo, hi, i1, i2; + + + lo1 = x & 0x0000FFFFU; hi1 = x >> 16; + lo2 = y & 0x0000FFFFU; hi2 = y >> 16; + + lo = lo1 * lo2; + i1 = lo1 * hi2; + i2 = lo2 * hi1; + hi = hi1 * hi2; + + /* Check carry overflow of i1 + i2 */ + i1 += i2; + hi += (FT_UInt32)( i1 < i2 ) << 16; + + hi += i1 >> 16; + i1 = i1 << 16; + + /* Check carry overflow of i1 + lo */ + lo += i1; + hi += ( lo < i1 ); + + z->lo = lo; + z->hi = hi; + } + + + static FT_UInt32 + ft_div64by32( FT_UInt32 hi, + FT_UInt32 lo, + FT_UInt32 y ) + { + FT_UInt32 r, q; + FT_Int i; + + + q = 0; + r = hi; + + if ( r >= y ) + return (FT_UInt32)0x7FFFFFFFL; + + i = 32; + do + { + r <<= 1; + q <<= 1; + r |= lo >> 31; + + if ( r >= (FT_UInt32)y ) + { + r -= y; + q |= 1; + } + lo <<= 1; + } while ( --i ); + + return q; + } + + + /* documentation is in ftcalc.h */ + + FT_EXPORT_DEF( void ) + FT_Add64( FT_Int64* x, + FT_Int64* y, + FT_Int64 *z ) + { + register FT_UInt32 lo, hi, max; + + + max = x->lo > y->lo ? x->lo : y->lo; + lo = x->lo + y->lo; + hi = x->hi + y->hi + ( lo < max ); + + z->lo = lo; + z->hi = hi; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Long ) + FT_MulDiv( FT_Long a, + FT_Long b, + FT_Long c ) + { + long s; + + + if ( a == 0 || b == c ) + return a; + + s = a; a = FT_ABS( a ); + s ^= b; b = FT_ABS( b ); + s ^= c; c = FT_ABS( c ); + + if ( a <= 46340L && b <= 46340L && c <= 176095L && c > 0 ) + a = ( a * b + ( c >> 1 ) ) / c; + + else if ( c > 0 ) + { + FT_Int64 temp, temp2; + + + ft_multo64( a, b, &temp ); + + temp2.hi = 0; + temp2.lo = (FT_UInt32)(c >> 1); + FT_Add64( &temp, &temp2, &temp ); + a = ft_div64by32( temp.hi, temp.lo, c ); + } + else + a = 0x7FFFFFFFL; + + return ( s < 0 ? -a : a ); + } + + +#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER + + FT_BASE_DEF( FT_Long ) + FT_MulDiv_No_Round( FT_Long a, + FT_Long b, + FT_Long c ) + { + long s; + + + if ( a == 0 || b == c ) + return a; + + s = a; a = FT_ABS( a ); + s ^= b; b = FT_ABS( b ); + s ^= c; c = FT_ABS( c ); + + if ( a <= 46340L && b <= 46340L && c > 0 ) + a = a * b / c; + + else if ( c > 0 ) + { + FT_Int64 temp; + + + ft_multo64( a, b, &temp ); + a = ft_div64by32( temp.hi, temp.lo, c ); + } + else + a = 0x7FFFFFFFL; + + return ( s < 0 ? -a : a ); + } + +#endif /* TT_CONFIG_OPTION_BYTECODE_INTERPRETER */ + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Long ) + FT_MulFix( FT_Long a, + FT_Long b ) + { + FT_Long s; + FT_ULong ua, ub; + + + if ( a == 0 || b == 0x10000L ) + return a; + + s = a; a = FT_ABS(a); + s ^= b; b = FT_ABS(b); + + ua = (FT_ULong)a; + ub = (FT_ULong)b; + + if ( ua <= 2048 && ub <= 1048576L ) + { + ua = ( ua * ub + 0x8000L ) >> 16; + } + else + { + FT_ULong al = ua & 0xFFFFL; + + + ua = ( ua >> 16 ) * ub + al * ( ub >> 16 ) + + ( ( al * ( ub & 0xFFFFL ) + 0x8000L ) >> 16 ); + } + + return ( s < 0 ? -(FT_Long)ua : (FT_Long)ua ); + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Long ) + FT_DivFix( FT_Long a, + FT_Long b ) + { + FT_Int32 s; + FT_UInt32 q; + + + s = a; a = FT_ABS(a); + s ^= b; b = FT_ABS(b); + + if ( b == 0 ) + { + /* check for division by 0 */ + q = 0x7FFFFFFFL; + } + else if ( ( a >> 16 ) == 0 ) + { + /* compute result directly */ + q = (FT_UInt32)( (a << 16) + (b >> 1) ) / (FT_UInt32)b; + } + else + { + /* we need more bits; we have to do it by hand */ + FT_Int64 temp, temp2; + + temp.hi = (FT_Int32) (a >> 16); + temp.lo = (FT_UInt32)(a << 16); + temp2.hi = 0; + temp2.lo = (FT_UInt32)( b >> 1 ); + FT_Add64( &temp, &temp2, &temp ); + q = ft_div64by32( temp.hi, temp.lo, b ); + } + + return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q ); + } + + + /* documentation is in ftcalc.h */ + + FT_EXPORT_DEF( void ) + FT_MulTo64( FT_Int32 x, + FT_Int32 y, + FT_Int64 *z ) + { + FT_Int32 s; + + + s = x; x = FT_ABS( x ); + s ^= y; y = FT_ABS( y ); + + ft_multo64( x, y, z ); + + if ( s < 0 ) + { + z->lo = (FT_UInt32)-(FT_Int32)z->lo; + z->hi = ~z->hi + !( z->lo ); + } + } + + + /* documentation is in ftcalc.h */ + + /* apparently, the second version of this code is not compiled correctly */ + /* on Mac machines with the MPW C compiler.. tsss, tsss, tss... */ + +#if 1 + + FT_EXPORT_DEF( FT_Int32 ) + FT_Div64by32( FT_Int64* x, + FT_Int32 y ) + { + FT_Int32 s; + FT_UInt32 q, r, i, lo; + + + s = x->hi; + if ( s < 0 ) + { + x->lo = (FT_UInt32)-(FT_Int32)x->lo; + x->hi = ~x->hi + !x->lo; + } + s ^= y; y = FT_ABS( y ); + + /* Shortcut */ + if ( x->hi == 0 ) + { + if ( y > 0 ) + q = x->lo / y; + else + q = 0x7FFFFFFFL; + + return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q ); + } + + r = x->hi; + lo = x->lo; + + if ( r >= (FT_UInt32)y ) /* we know y is to be treated as unsigned here */ + return ( s < 0 ? 0x80000001UL : 0x7FFFFFFFUL ); + /* Return Max/Min Int32 if division overflow. */ + /* This includes division by zero! */ + q = 0; + for ( i = 0; i < 32; i++ ) + { + r <<= 1; + q <<= 1; + r |= lo >> 31; + + if ( r >= (FT_UInt32)y ) + { + r -= y; + q |= 1; + } + lo <<= 1; + } + + return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q ); + } + +#else /* 0 */ + + FT_EXPORT_DEF( FT_Int32 ) + FT_Div64by32( FT_Int64* x, + FT_Int32 y ) + { + FT_Int32 s; + FT_UInt32 q; + + + s = x->hi; + if ( s < 0 ) + { + x->lo = (FT_UInt32)-(FT_Int32)x->lo; + x->hi = ~x->hi + !x->lo; + } + s ^= y; y = FT_ABS( y ); + + /* Shortcut */ + if ( x->hi == 0 ) + { + if ( y > 0 ) + q = ( x->lo + ( y >> 1 ) ) / y; + else + q = 0x7FFFFFFFL; + + return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q ); + } + + q = ft_div64by32( x->hi, x->lo, y ); + + return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q ); + } + +#endif /* 0 */ + + +#endif /* FT_LONG64 */ + + + /* a not-so-fast but working 16.16 fixed point square root function */ + + FT_EXPORT_DEF( FT_Int32 ) + FT_SqrtFixed( FT_Int32 x ) + { + FT_UInt32 root, rem_hi, rem_lo, test_div; + FT_Int count; + + + root = 0; + + if ( x > 0 ) + { + rem_hi = 0; + rem_lo = x; + count = 24; + do + { + rem_hi = ( rem_hi << 2 ) | ( rem_lo >> 30 ); + rem_lo <<= 2; + root <<= 1; + test_div = ( root << 1 ) + 1; + + if ( rem_hi >= test_div ) + { + rem_hi -= test_div; + root += 1; + } + } while ( --count ); + } + + return (FT_Int32)root; + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftdbgmem.c b/nx-X11/extras/freetype2/src/base/ftdbgmem.c new file mode 100644 index 000000000..61227b64a --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftdbgmem.c @@ -0,0 +1,763 @@ +/***************************************************************************/ +/* */ +/* ftdbgmem.c */ +/* */ +/* Memory debugger (body). */ +/* */ +/* Copyright 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. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_MEMORY_H +#include FT_SYSTEM_H +#include FT_ERRORS_H +#include FT_TYPES_H + + +#ifdef FT_DEBUG_MEMORY + + +#include <stdio.h> +#include <stdlib.h> + + + typedef struct FT_MemNodeRec_* FT_MemNode; + typedef struct FT_MemTableRec_* FT_MemTable; + +#define FT_MEM_VAL( addr ) ((FT_ULong)(FT_Pointer)( addr )) + + typedef struct FT_MemNodeRec_ + { + FT_Byte* address; + FT_Long size; /* < 0 if the block was freed */ + + const char* alloc_file_name; + FT_Long alloc_line_no; + + const char* free_file_name; + FT_Long free_line_no; + + FT_MemNode link; + + } FT_MemNodeRec; + + + typedef struct FT_MemTableRec_ + { + FT_ULong size; + FT_ULong nodes; + FT_MemNode* buckets; + + FT_ULong alloc_total; + FT_ULong alloc_current; + FT_ULong alloc_max; + FT_ULong alloc_count; + + FT_Bool bound_total; + FT_ULong alloc_total_max; + + FT_Bool bound_count; + FT_ULong alloc_count_max; + + const char* file_name; + FT_Long line_no; + + FT_Memory memory; + FT_Pointer memory_user; + FT_Alloc_Func alloc; + FT_Free_Func free; + FT_Realloc_Func realloc; + + } FT_MemTableRec; + + +#define FT_MEM_SIZE_MIN 7 +#define FT_MEM_SIZE_MAX 13845163 + +#define FT_FILENAME( x ) ((x) ? (x) : "unknown file") + + + static const FT_UInt ft_mem_primes[] = + { + 7, + 11, + 19, + 37, + 73, + 109, + 163, + 251, + 367, + 557, + 823, + 1237, + 1861, + 2777, + 4177, + 6247, + 9371, + 14057, + 21089, + 31627, + 47431, + 71143, + 106721, + 160073, + 240101, + 360163, + 540217, + 810343, + 1215497, + 1823231, + 2734867, + 4102283, + 6153409, + 9230113, + 13845163, + }; + + + + extern void + ft_mem_debug_panic( const char* fmt, ... ) + { + va_list ap; + + + printf( "FreeType.Debug: " ); + + va_start( ap, fmt ); + vprintf( fmt, ap ); + va_end( ap ); + + printf( "\n" ); + exit( EXIT_FAILURE ); + } + + + static FT_ULong + ft_mem_closest_prime( FT_ULong num ) + { + FT_UInt i; + + + for ( i = 0; + i < sizeof ( ft_mem_primes ) / sizeof ( ft_mem_primes[0] ); i++ ) + if ( ft_mem_primes[i] > num ) + return ft_mem_primes[i]; + + return FT_MEM_SIZE_MAX; + } + + + static FT_Pointer + ft_mem_table_alloc( FT_MemTable table, + FT_Long size ) + { + FT_Memory memory = table->memory; + FT_Pointer block; + + + memory->user = table->memory_user; + block = table->alloc( memory, size ); + memory->user = table; + + return block; + } + + + static void + ft_mem_table_free( FT_MemTable table, + FT_Pointer block ) + { + FT_Memory memory = table->memory; + + + memory->user = table->memory_user; + table->free( memory, block ); + memory->user = table; + } + + + static void + ft_mem_table_resize( FT_MemTable table ) + { + FT_ULong new_size; + + + new_size = ft_mem_closest_prime( table->nodes ); + if ( new_size != table->size ) + { + FT_MemNode* new_buckets ; + FT_ULong i; + + + new_buckets = (FT_MemNode *) + ft_mem_table_alloc( table, + new_size * sizeof ( FT_MemNode ) ); + if ( new_buckets == NULL ) + return; + + FT_MEM_ZERO( new_buckets, sizeof ( FT_MemNode ) * new_size ); + + for ( i = 0; i < table->size; i++ ) + { + FT_MemNode node, next, *pnode; + FT_ULong hash; + + + node = table->buckets[i]; + while ( node ) + { + next = node->link; + hash = FT_MEM_VAL( node->address ) % new_size; + pnode = new_buckets + hash; + + node->link = pnode[0]; + pnode[0] = node; + + node = next; + } + } + + if ( table->buckets ) + ft_mem_table_free( table, table->buckets ); + + table->buckets = new_buckets; + table->size = new_size; + } + } + + + static FT_MemTable + ft_mem_table_new( FT_Memory memory ) + { + FT_MemTable table; + + + table = (FT_MemTable)memory->alloc( memory, sizeof ( *table ) ); + if ( table == NULL ) + goto Exit; + + FT_MEM_ZERO( table, sizeof ( *table ) ); + + table->size = FT_MEM_SIZE_MIN; + table->nodes = 0; + + table->memory = memory; + + table->memory_user = memory->user; + + table->alloc = memory->alloc; + table->realloc = memory->realloc; + table->free = memory->free; + + table->buckets = (FT_MemNode *) + memory->alloc( memory, + table->size * sizeof ( FT_MemNode ) ); + if ( table->buckets ) + FT_MEM_ZERO( table->buckets, sizeof ( FT_MemNode ) * table->size ); + else + { + memory->free( memory, table ); + table = NULL; + } + + Exit: + return table; + } + + + static void + ft_mem_table_destroy( FT_MemTable table ) + { + FT_ULong i; + + + if ( table ) + { + FT_Long leak_count = 0; + FT_ULong leaks = 0; + + + for ( i = 0; i < table->size; i++ ) + { + FT_MemNode *pnode = table->buckets + i, next, node = *pnode; + + + while ( node ) + { + next = node->link; + node->link = 0; + + if ( node->size > 0 ) + { + printf( + "leaked memory block at address %p, size %8ld in (%s:%ld)\n", + node->address, node->size, + FT_FILENAME( node->alloc_file_name ), + node->alloc_line_no ); + + leak_count++; + leaks += node->size; + + ft_mem_table_free( table, node->address ); + } + + node->address = NULL; + node->size = 0; + + free( node ); + node = next; + } + table->buckets[i] = 0; + } + ft_mem_table_free( table, table->buckets ); + table->buckets = NULL; + + table->size = 0; + table->nodes = 0; + + printf( + "FreeType: total memory allocations = %ld\n", table->alloc_total ); + printf( + "FreeType: maximum memory footprint = %ld\n", table->alloc_max ); + + free( table ); + + if ( leak_count > 0 ) + ft_mem_debug_panic( + "FreeType: %ld bytes of memory leaked in %ld blocks\n", + leaks, leak_count ); + printf( "FreeType: No memory leaks detected!\n" ); + } + } + + + static FT_MemNode* + ft_mem_table_get_nodep( FT_MemTable table, + FT_Byte* address ) + { + FT_ULong hash; + FT_MemNode *pnode, node; + + + hash = FT_MEM_VAL( address ); + pnode = table->buckets + ( hash % table->size ); + + for (;;) + { + node = pnode[0]; + if ( !node ) + break; + + if ( node->address == address ) + break; + + pnode = &node->link; + } + return pnode; + } + + + static void + ft_mem_table_set( FT_MemTable table, + FT_Byte* address, + FT_ULong size ) + { + FT_MemNode *pnode, node; + + + if ( table ) + { + pnode = ft_mem_table_get_nodep( table, address ); + node = *pnode; + if ( node ) + { + if ( node->size < 0 ) + { + /* this block was already freed. This means that our memory is */ + /* now completely corrupted! */ + ft_mem_debug_panic( + "memory heap corrupted (allocating freed block)" ); + } + else + { + /* this block was already allocated. This means that our memory */ + /* is also corrupted! */ + ft_mem_debug_panic( + "memory heap corrupted (re-allocating allocated block)" ); + } + } + + /* we need to create a new node in this table */ + node = (FT_MemNode)ft_mem_table_alloc( table, sizeof ( *node ) ); + if ( node == NULL ) + ft_mem_debug_panic( "not enough memory to run memory tests" ); + + node->address = address; + node->size = size; + + node->alloc_file_name = table->file_name; + node->alloc_line_no = table->line_no; + + node->free_file_name = NULL; + node->free_line_no = 0; + + node->link = pnode[0]; + + pnode[0] = node; + table->nodes++; + + table->alloc_total += size; + table->alloc_current += size; + if ( table->alloc_current > table->alloc_max ) + table->alloc_max = table->alloc_current; + + if ( table->nodes * 3 < table->size || + table->size * 3 < table->nodes ) + ft_mem_table_resize( table ); + } + } + + + static void + ft_mem_table_remove( FT_MemTable table, + FT_Byte* address ) + { + if ( table ) + { + FT_MemNode *pnode, node; + + + pnode = ft_mem_table_get_nodep( table, address ); + node = *pnode; + if ( node ) + { + if ( node->size < 0 ) + ft_mem_debug_panic( + "freeing memory block at %p more than once at (%s:%ld)\n" + "block allocated at (%s:%ld) and released at (%s:%ld)", + address, + FT_FILENAME( table->file_name ), table->line_no, + FT_FILENAME( node->alloc_file_name ), node->alloc_line_no, + FT_FILENAME( node->free_file_name ), node->free_line_no ); + + /* we simply invert the node's size to indicate that the node */ + /* was freed. We also change its contents. */ + FT_MEM_SET( address, 0xF3, node->size ); + + table->alloc_current -= node->size; + node->size = -node->size; + node->free_file_name = table->file_name; + node->free_line_no = table->line_no; + } + else + ft_mem_debug_panic( + "trying to free unknown block at %p in (%s:%ld)\n", + address, + FT_FILENAME( table->file_name ), table->line_no ); + } + } + + + extern FT_Pointer + ft_mem_debug_alloc( FT_Memory memory, + FT_Long size ) + { + FT_MemTable table = (FT_MemTable)memory->user; + FT_Byte* block; + + + if ( size <= 0 ) + ft_mem_debug_panic( "negative block size allocation (%ld)", size ); + + /* return NULL if the maximum number of allocations was reached */ + if ( table->bound_count && + table->alloc_count >= table->alloc_count_max ) + return NULL; + + /* return NULL if this allocation would overflow the maximum heap size */ + if ( table->bound_total && + table->alloc_current + (FT_ULong)size > table->alloc_total_max ) + return NULL; + + block = (FT_Byte *)ft_mem_table_alloc( table, size ); + if ( block ) + ft_mem_table_set( table, block, (FT_ULong)size ); + + table->alloc_count++; + + table->file_name = NULL; + table->line_no = 0; + + return (FT_Pointer) block; + } + + + extern void + ft_mem_debug_free( FT_Memory memory, + FT_Pointer block ) + { + FT_MemTable table = (FT_MemTable)memory->user; + + + if ( block == NULL ) + ft_mem_debug_panic( "trying to free NULL in (%s:%ld)", + FT_FILENAME( table->file_name ), + table->line_no ); + + ft_mem_table_remove( table, (FT_Byte*)block ); + + /* we never really free the block */ + table->file_name = NULL; + table->line_no = 0; + } + + + extern FT_Pointer + ft_mem_debug_realloc( FT_Memory memory, + FT_Long cur_size, + FT_Long new_size, + FT_Pointer block ) + { + FT_MemTable table = (FT_MemTable)memory->user; + FT_MemNode node, *pnode; + FT_Pointer new_block; + + const char* file_name = FT_FILENAME( table->file_name ); + FT_Long line_no = table->line_no; + + + /* the following is valid according to ANSI C */ +#if 0 + if ( block == NULL || cur_size == 0 ) + ft_mem_debug_panic( "trying to reallocate NULL in (%s:%ld)", + file_name, line_no ); +#endif + + /* while the following is allowed in ANSI C also, we abort since */ + /* such code shouldn't be in FreeType... */ + if ( new_size <= 0 ) + ft_mem_debug_panic( + "trying to reallocate %p to size 0 (current is %ld) in (%s:%ld)", + block, cur_size, file_name, line_no ); + + /* check 'cur_size' value */ + pnode = ft_mem_table_get_nodep( table, (FT_Byte*)block ); + node = *pnode; + if ( !node ) + ft_mem_debug_panic( + "trying to reallocate unknown block at %p in (%s:%ld)", + block, file_name, line_no ); + + if ( node->size <= 0 ) + ft_mem_debug_panic( + "trying to reallocate freed block at %p in (%s:%ld)", + block, file_name, line_no ); + + if ( node->size != cur_size ) + ft_mem_debug_panic( "invalid ft_realloc request for %p. cur_size is " + "%ld instead of %ld in (%s:%ld)", + block, cur_size, node->size, file_name, line_no ); + + new_block = ft_mem_debug_alloc( memory, new_size ); + if ( new_block == NULL ) + return NULL; + + ft_memcpy( new_block, block, cur_size < new_size ? cur_size : new_size ); + + table->file_name = file_name; + table->line_no = line_no; + + ft_mem_debug_free( memory, (FT_Byte*)block ); + + return new_block; + } + + + extern FT_Int + ft_mem_debug_init( FT_Memory memory ) + { + FT_MemTable table; + FT_Int result = 0; + + + if ( getenv( "FT2_DEBUG_MEMORY" ) ) + { + table = ft_mem_table_new( memory ); + if ( table ) + { + const char* p; + + memory->user = table; + memory->alloc = ft_mem_debug_alloc; + memory->realloc = ft_mem_debug_realloc; + memory->free = ft_mem_debug_free; + + p = getenv( "FT2_ALLOC_TOTAL_MAX" ); + if ( p != NULL ) + { + FT_Long total_max = ft_atol(p); + + if ( total_max > 0 ) + { + table->bound_total = 1; + table->alloc_total_max = (FT_ULong) total_max; + } + } + + p = getenv( "FT2_ALLOC_COUNT_MAX" ); + if ( p != NULL ) + { + FT_Long total_count = ft_atol(p); + + if ( total_count > 0 ) + { + table->bound_count = 1; + table->alloc_count_max = (FT_ULong) total_count; + } + } + + result = 1; + } + } + return result; + } + + + extern void + ft_mem_debug_done( FT_Memory memory ) + { + FT_MemTable table = (FT_MemTable)memory->user; + + + if ( table ) + { + memory->free = table->free; + memory->realloc = table->realloc; + memory->alloc = table->alloc; + + ft_mem_table_destroy( table ); + memory->user = NULL; + } + } + + + FT_BASE_DEF( FT_Error ) + FT_Alloc_Debug( FT_Memory memory, + FT_Long size, + void* *P, + const char* file_name, + FT_Long line_no ) + { + FT_MemTable table = (FT_MemTable)memory->user; + + + if ( table ) + { + table->file_name = file_name; + table->line_no = line_no; + } + return FT_Alloc( memory, size, P ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Realloc_Debug( FT_Memory memory, + FT_Long current, + FT_Long size, + void* *P, + const char* file_name, + FT_Long line_no ) + { + FT_MemTable table = (FT_MemTable)memory->user; + + + if ( table ) + { + table->file_name = file_name; + table->line_no = line_no; + } + return FT_Realloc( memory, current, size, P ); + } + + + FT_BASE_DEF( FT_Error ) + FT_QAlloc_Debug( FT_Memory memory, + FT_Long size, + void* *P, + const char* file_name, + FT_Long line_no ) + { + FT_MemTable table = (FT_MemTable)memory->user; + + + if ( table ) + { + table->file_name = file_name; + table->line_no = line_no; + } + + return FT_QAlloc( memory, size, P ); + } + + + FT_BASE_DEF( FT_Error ) + FT_QRealloc_Debug( FT_Memory memory, + FT_Long current, + FT_Long size, + void* *P, + const char* file_name, + FT_Long line_no ) + { + FT_MemTable table = (FT_MemTable)memory->user; + + + if ( table ) + { + table->file_name = file_name; + table->line_no = line_no; + } + return FT_QRealloc( memory, current, size, P ); + } + + + FT_BASE_DEF( void ) + FT_Free_Debug( FT_Memory memory, + FT_Pointer block, + const char* file_name, + FT_Long line_no ) + { + FT_MemTable table = (FT_MemTable)memory->user; + + + if ( table ) + { + table->file_name = file_name; + table->line_no = line_no; + } + FT_Free( memory, (void **)block ); + } + + +#else /* !FT_DEBUG_MEMORY */ + + /* ANSI C doesn't like empty source files */ + const FT_Byte _debug_mem_dummy = 0; + +#endif /* !FT_DEBUG_MEMORY */ + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftdebug.c b/nx-X11/extras/freetype2/src/base/ftdebug.c new file mode 100644 index 000000000..a6c18412b --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftdebug.c @@ -0,0 +1,242 @@ +/***************************************************************************/ +/* */ +/* ftdebug.c */ +/* */ +/* Debugging and logging component (body). */ +/* */ +/* Copyright 1996-2001, 2002, 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. */ +/* */ +/***************************************************************************/ + + + /*************************************************************************/ + /* */ + /* This component contains various macros and functions used to ease the */ + /* debugging of the FreeType engine. Its main purpose is in assertion */ + /* checking, tracing, and error detection. */ + /* */ + /* There are now three debugging modes: */ + /* */ + /* - trace mode */ + /* */ + /* Error and trace messages are sent to the log file (which can be the */ + /* standard error output). */ + /* */ + /* - error mode */ + /* */ + /* Only error messages are generated. */ + /* */ + /* - release mode: */ + /* */ + /* No error message is sent or generated. The code is free from any */ + /* debugging parts. */ + /* */ + /*************************************************************************/ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_DEBUG_H + + +#if defined( FT_DEBUG_LEVEL_ERROR ) + + FT_EXPORT_DEF( void ) + FT_Message( const char* fmt, ... ) + { + va_list ap; + + + va_start( ap, fmt ); + vprintf( fmt, ap ); + va_end( ap ); + } + + + FT_EXPORT_DEF( void ) + FT_Panic( const char* fmt, ... ) + { + va_list ap; + + + va_start( ap, fmt ); + vprintf( fmt, ap ); + va_end( ap ); + + exit( EXIT_FAILURE ); + } + +#endif /* FT_DEBUG_LEVEL_ERROR */ + + + +#ifdef FT_DEBUG_LEVEL_TRACE + + /* array of trace levels, initialized to 0 */ + int ft_trace_levels[trace_count]; + + + /* define array of trace toggle names */ +#define FT_TRACE_DEF( x ) #x , + + static const char* ft_trace_toggles[trace_count + 1] = + { +#include FT_INTERNAL_TRACE_H + NULL + }; + +#undef FT_TRACE_DEF + + + /* documentation is in ftdebug.h */ + + FT_EXPORT_DEF( FT_Int ) + FT_Trace_Get_Count( void ) + { + return trace_count; + } + + + /* documentation is in ftdebug.h */ + + FT_EXPORT_DEF( const char * ) + FT_Trace_Get_Name( FT_Int idx ) + { + int max = FT_Trace_Get_Count(); + + + if ( idx < max ) + return ft_trace_toggles[idx]; + else + return NULL; + } + + + /*************************************************************************/ + /* */ + /* Initialize the tracing sub-system. This is done by retrieving the */ + /* value of the `FT2_DEBUG' environment variable. It must be a list of */ + /* toggles, separated by spaces, `;', or `,'. Example: */ + /* */ + /* export FT2_DEBUG="any:3 memory:6 stream:5" */ + /* */ + /* This requests that all levels be set to 3, except the trace level for */ + /* the memory and stream components which are set to 6 and 5, */ + /* respectively. */ + /* */ + /* See the file <include/freetype/internal/fttrace.h> for details of the */ + /* available toggle names. */ + /* */ + /* The level must be between 0 and 6; 0 means quiet (except for serious */ + /* runtime errors), and 6 means _very_ verbose. */ + /* */ + FT_BASE_DEF( void ) + ft_debug_init( void ) + { + const char* ft2_debug = getenv( "FT2_DEBUG" ); + + + if ( ft2_debug ) + { + const char* p = ft2_debug; + const char* q; + + + for ( ; *p; p++ ) + { + /* skip leading whitespace and separators */ + if ( *p == ' ' || *p == '\t' || *p == ',' || *p == ';' || *p == '=' ) + continue; + + /* read toggle name, followed by ':' */ + q = p; + while ( *p && *p != ':' ) + p++; + + if ( *p == ':' && p > q ) + { + FT_Int n, i, len = (FT_Int)( p - q ); + FT_Int level = -1, found = -1; + + + for ( n = 0; n < trace_count; n++ ) + { + const char* toggle = ft_trace_toggles[n]; + + + for ( i = 0; i < len; i++ ) + { + if ( toggle[i] != q[i] ) + break; + } + + if ( i == len && toggle[i] == 0 ) + { + found = n; + break; + } + } + + /* read level */ + p++; + if ( *p ) + { + level = *p++ - '0'; + if ( level < 0 || level > 6 ) + level = -1; + } + + if ( found >= 0 && level >= 0 ) + { + if ( found == trace_any ) + { + /* special case for `any' */ + for ( n = 0; n < trace_count; n++ ) + ft_trace_levels[n] = level; + } + else + ft_trace_levels[found] = level; + } + } + } + } + } + + +#else /* !FT_DEBUG_LEVEL_TRACE */ + + + FT_BASE_DEF( void ) + ft_debug_init( void ) + { + /* nothing */ + } + + + FT_EXPORT_DEF( FT_Int ) + FT_Trace_Get_Count( void ) + { + return 0; + } + + + FT_EXPORT_DEF( const char * ) + FT_Trace_Get_Name( FT_Int idx ) + { + FT_UNUSED( idx ); + + return NULL; + } + + +#endif /* !FT_DEBUG_LEVEL_TRACE */ + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftgloadr.c b/nx-X11/extras/freetype2/src/base/ftgloadr.c new file mode 100644 index 000000000..94a070673 --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftgloadr.c @@ -0,0 +1,362 @@ +/***************************************************************************/ +/* */ +/* ftgloadr.c */ +/* */ +/* The FreeType glyph loader (body). */ +/* */ +/* Copyright 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. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_GLYPH_LOADER_H +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_OBJECTS_H + +#undef FT_COMPONENT +#define FT_COMPONENT trace_gloader + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** *****/ + /***** G L Y P H L O A D E R *****/ + /***** *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* The glyph loader is a simple object which is used to load a set of */ + /* glyphs easily. It is critical for the correct loading of composites. */ + /* */ + /* Ideally, one can see it as a stack of abstract `glyph' objects. */ + /* */ + /* loader.base Is really the bottom of the stack. It describes a */ + /* single glyph image made of the juxtaposition of */ + /* several glyphs (those `in the stack'). */ + /* */ + /* loader.current Describes the top of the stack, on which a new */ + /* glyph can be loaded. */ + /* */ + /* Rewind Clears the stack. */ + /* Prepare Set up `loader.current' for addition of a new glyph */ + /* image. */ + /* Add Add the `current' glyph image to the `base' one, */ + /* and prepare for another one. */ + /* */ + /* The glyph loader is now a base object. Each driver used to */ + /* re-implement it in one way or the other, which wasted code and */ + /* energy. */ + /* */ + /*************************************************************************/ + + + /* create a new glyph loader */ + FT_BASE_DEF( FT_Error ) + FT_GlyphLoader_New( FT_Memory memory, + FT_GlyphLoader *aloader ) + { + FT_GlyphLoader loader; + FT_Error error; + + + if ( !FT_NEW( loader ) ) + { + loader->memory = memory; + *aloader = loader; + } + return error; + } + + + /* rewind the glyph loader - reset counters to 0 */ + FT_BASE_DEF( void ) + FT_GlyphLoader_Rewind( FT_GlyphLoader loader ) + { + FT_GlyphLoad base = &loader->base; + FT_GlyphLoad current = &loader->current; + + + base->outline.n_points = 0; + base->outline.n_contours = 0; + base->num_subglyphs = 0; + + *current = *base; + } + + + /* reset the glyph loader, frees all allocated tables */ + /* and starts from zero */ + FT_BASE_DEF( void ) + FT_GlyphLoader_Reset( FT_GlyphLoader loader ) + { + FT_Memory memory = loader->memory; + + + FT_FREE( loader->base.outline.points ); + FT_FREE( loader->base.outline.tags ); + FT_FREE( loader->base.outline.contours ); + FT_FREE( loader->base.extra_points ); + FT_FREE( loader->base.subglyphs ); + + loader->max_points = 0; + loader->max_contours = 0; + loader->max_subglyphs = 0; + + FT_GlyphLoader_Rewind( loader ); + } + + + /* delete a glyph loader */ + FT_BASE_DEF( void ) + FT_GlyphLoader_Done( FT_GlyphLoader loader ) + { + if ( loader ) + { + FT_Memory memory = loader->memory; + + + FT_GlyphLoader_Reset( loader ); + FT_FREE( loader ); + } + } + + + /* re-adjust the `current' outline fields */ + static void + FT_GlyphLoader_Adjust_Points( FT_GlyphLoader loader ) + { + FT_Outline* base = &loader->base.outline; + FT_Outline* current = &loader->current.outline; + + + current->points = base->points + base->n_points; + current->tags = base->tags + base->n_points; + current->contours = base->contours + base->n_contours; + + /* handle extra points table - if any */ + if ( loader->use_extra ) + loader->current.extra_points = + loader->base.extra_points + base->n_points; + } + + + FT_BASE_DEF( FT_Error ) + FT_GlyphLoader_CreateExtra( FT_GlyphLoader loader ) + { + FT_Error error; + FT_Memory memory = loader->memory; + + + if ( !FT_NEW_ARRAY( loader->base.extra_points, loader->max_points ) ) + { + loader->use_extra = 1; + FT_GlyphLoader_Adjust_Points( loader ); + } + return error; + } + + + /* re-adjust the `current' subglyphs field */ + static void + FT_GlyphLoader_Adjust_Subglyphs( FT_GlyphLoader loader ) + { + FT_GlyphLoad base = &loader->base; + FT_GlyphLoad current = &loader->current; + + + current->subglyphs = base->subglyphs + base->num_subglyphs; + } + + + /* Ensure that we can add `n_points' and `n_contours' to our glyph. */ + /* This function reallocates its outline tables if necessary. Note that */ + /* it DOESN'T change the number of points within the loader! */ + /* */ + FT_BASE_DEF( FT_Error ) + FT_GlyphLoader_CheckPoints( FT_GlyphLoader loader, + FT_UInt n_points, + FT_UInt n_contours ) + { + FT_Memory memory = loader->memory; + FT_Error error = FT_Err_Ok; + FT_Outline* base = &loader->base.outline; + FT_Outline* current = &loader->current.outline; + FT_Bool adjust = 1; + + FT_UInt new_max, old_max; + + + /* check points & tags */ + new_max = base->n_points + current->n_points + n_points; + old_max = loader->max_points; + + if ( new_max > old_max ) + { + new_max = FT_PAD_CEIL( new_max, 8 ); + + if ( FT_RENEW_ARRAY( base->points, old_max, new_max ) || + FT_RENEW_ARRAY( base->tags, old_max, new_max ) ) + goto Exit; + + if ( loader->use_extra && + FT_RENEW_ARRAY( loader->base.extra_points, old_max, new_max ) ) + goto Exit; + + adjust = 1; + loader->max_points = new_max; + } + + /* check contours */ + old_max = loader->max_contours; + new_max = base->n_contours + current->n_contours + + n_contours; + if ( new_max > old_max ) + { + new_max = FT_PAD_CEIL( new_max, 4 ); + if ( FT_RENEW_ARRAY( base->contours, old_max, new_max ) ) + goto Exit; + + adjust = 1; + loader->max_contours = new_max; + } + + if ( adjust ) + FT_GlyphLoader_Adjust_Points( loader ); + + Exit: + return error; + } + + + /* Ensure that we can add `n_subglyphs' to our glyph. this function */ + /* reallocates its subglyphs table if necessary. Note that it DOES */ + /* NOT change the number of subglyphs within the loader! */ + /* */ + FT_BASE_DEF( FT_Error ) + FT_GlyphLoader_CheckSubGlyphs( FT_GlyphLoader loader, + FT_UInt n_subs ) + { + FT_Memory memory = loader->memory; + FT_Error error = FT_Err_Ok; + FT_UInt new_max, old_max; + + FT_GlyphLoad base = &loader->base; + FT_GlyphLoad current = &loader->current; + + + new_max = base->num_subglyphs + current->num_subglyphs + n_subs; + old_max = loader->max_subglyphs; + if ( new_max > old_max ) + { + new_max = FT_PAD_CEIL( new_max, 2 ); + if ( FT_RENEW_ARRAY( base->subglyphs, old_max, new_max ) ) + goto Exit; + + loader->max_subglyphs = new_max; + + FT_GlyphLoader_Adjust_Subglyphs( loader ); + } + + Exit: + return error; + } + + + /* prepare loader for the addition of a new glyph on top of the base one */ + FT_BASE_DEF( void ) + FT_GlyphLoader_Prepare( FT_GlyphLoader loader ) + { + FT_GlyphLoad current = &loader->current; + + + current->outline.n_points = 0; + current->outline.n_contours = 0; + current->num_subglyphs = 0; + + FT_GlyphLoader_Adjust_Points ( loader ); + FT_GlyphLoader_Adjust_Subglyphs( loader ); + } + + + /* add current glyph to the base image - and prepare for another */ + FT_BASE_DEF( void ) + FT_GlyphLoader_Add( FT_GlyphLoader loader ) + { + FT_GlyphLoad base = &loader->base; + FT_GlyphLoad current = &loader->current; + + FT_UInt n_curr_contours = current->outline.n_contours; + FT_UInt n_base_points = base->outline.n_points; + FT_UInt n; + + + base->outline.n_points = + (short)( base->outline.n_points + current->outline.n_points ); + base->outline.n_contours = + (short)( base->outline.n_contours + current->outline.n_contours ); + + base->num_subglyphs += current->num_subglyphs; + + /* adjust contours count in newest outline */ + for ( n = 0; n < n_curr_contours; n++ ) + current->outline.contours[n] = + (short)( current->outline.contours[n] + n_base_points ); + + /* prepare for another new glyph image */ + FT_GlyphLoader_Prepare( loader ); + } + + + FT_BASE_DEF( FT_Error ) + FT_GlyphLoader_CopyPoints( FT_GlyphLoader target, + FT_GlyphLoader source ) + { + FT_Error error; + FT_UInt num_points = source->base.outline.n_points; + FT_UInt num_contours = source->base.outline.n_contours; + + + error = FT_GlyphLoader_CheckPoints( target, num_points, num_contours ); + if ( !error ) + { + FT_Outline* out = &target->base.outline; + FT_Outline* in = &source->base.outline; + + + FT_ARRAY_COPY( out->points, in->points, + num_points ); + FT_ARRAY_COPY( out->tags, in->tags, + num_points ); + FT_ARRAY_COPY( out->contours, in->contours, + num_contours ); + + /* do we need to copy the extra points? */ + if ( target->use_extra && source->use_extra ) + FT_ARRAY_COPY( target->base.extra_points, source->base.extra_points, + num_points ); + + out->n_points = (short)num_points; + out->n_contours = (short)num_contours; + + FT_GlyphLoader_Adjust_Points( target ); + } + + return error; + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftglyph.c b/nx-X11/extras/freetype2/src/base/ftglyph.c new file mode 100644 index 000000000..1b22ab6b3 --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftglyph.c @@ -0,0 +1,712 @@ +/***************************************************************************/ +/* */ +/* ftglyph.c */ +/* */ +/* FreeType convenience functions to handle glyphs (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. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* This file contains the definition of several convenience functions */ + /* that can be used by client applications to easily retrieve glyph */ + /* bitmaps and outlines from a given face. */ + /* */ + /* These functions should be optional if you are writing a font server */ + /* or text layout engine on top of FreeType. However, they are pretty */ + /* handy for many other simple uses of the library. */ + /* */ + /*************************************************************************/ + + +#include <ft2build.h> +#include FT_GLYPH_H +#include FT_OUTLINE_H +#include FT_INTERNAL_OBJECTS_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_glyph + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** Convenience functions ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( void ) + FT_Matrix_Multiply( const FT_Matrix* a, + FT_Matrix *b ) + { + FT_Fixed xx, xy, yx, yy; + + + if ( !a || !b ) + return; + + xx = FT_MulFix( a->xx, b->xx ) + FT_MulFix( a->xy, b->yx ); + xy = FT_MulFix( a->xx, b->xy ) + FT_MulFix( a->xy, b->yy ); + yx = FT_MulFix( a->yx, b->xx ) + FT_MulFix( a->yy, b->yx ); + yy = FT_MulFix( a->yx, b->xy ) + FT_MulFix( a->yy, b->yy ); + + b->xx = xx; b->xy = xy; + b->yx = yx; b->yy = yy; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Matrix_Invert( FT_Matrix* matrix ) + { + FT_Pos delta, xx, yy; + + + if ( !matrix ) + return FT_Err_Invalid_Argument; + + /* compute discriminant */ + delta = FT_MulFix( matrix->xx, matrix->yy ) - + FT_MulFix( matrix->xy, matrix->yx ); + + if ( !delta ) + return FT_Err_Invalid_Argument; /* matrix can't be inverted */ + + matrix->xy = - FT_DivFix( matrix->xy, delta ); + matrix->yx = - FT_DivFix( matrix->yx, delta ); + + xx = matrix->xx; + yy = matrix->yy; + + matrix->xx = FT_DivFix( yy, delta ); + matrix->yy = FT_DivFix( xx, delta ); + + return FT_Err_Ok; + } + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** FT_BitmapGlyph support ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + static FT_Error + ft_bitmap_copy( FT_Memory memory, + FT_Bitmap* source, + FT_Bitmap* target ) + { + FT_Error error; + FT_Int pitch = source->pitch; + FT_ULong size; + + + *target = *source; + + if ( pitch < 0 ) + pitch = -pitch; + + size = (FT_ULong)( pitch * source->rows ); + + if ( !FT_ALLOC( target->buffer, size ) ) + FT_MEM_COPY( target->buffer, source->buffer, size ); + + return error; + } + + + FT_CALLBACK_DEF( FT_Error ) + ft_bitmap_glyph_init( FT_Glyph bitmap_glyph, + FT_GlyphSlot slot ) + { + FT_BitmapGlyph glyph = (FT_BitmapGlyph)bitmap_glyph; + FT_Error error = FT_Err_Ok; + FT_Library library = FT_GLYPH( glyph )->library; + FT_Memory memory = library->memory; + + + if ( slot->format != FT_GLYPH_FORMAT_BITMAP ) + { + error = FT_Err_Invalid_Glyph_Format; + goto Exit; + } + + /* grab the bitmap in the slot - do lazy copying whenever possible */ + glyph->bitmap = slot->bitmap; + glyph->left = slot->bitmap_left; + glyph->top = slot->bitmap_top; + + if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) + slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP; + else + { + /* copy the bitmap into a new buffer */ + error = ft_bitmap_copy( memory, &slot->bitmap, &glyph->bitmap ); + } + + Exit: + return error; + } + + + FT_CALLBACK_DEF( FT_Error ) + ft_bitmap_glyph_copy( FT_Glyph bitmap_source, + FT_Glyph bitmap_target ) + { + FT_BitmapGlyph source = (FT_BitmapGlyph)bitmap_source; + FT_BitmapGlyph target = (FT_BitmapGlyph)bitmap_target; + FT_Memory memory = bitmap_source->library->memory; + + + target->left = source->left; + target->top = source->top; + + return ft_bitmap_copy( memory, &source->bitmap, &target->bitmap ); + } + + + FT_CALLBACK_DEF( void ) + ft_bitmap_glyph_done( FT_Glyph bitmap_glyph ) + { + FT_BitmapGlyph glyph = (FT_BitmapGlyph)bitmap_glyph; + FT_Memory memory = FT_GLYPH( glyph )->library->memory; + + + FT_FREE( glyph->bitmap.buffer ); + } + + + FT_CALLBACK_DEF( void ) + ft_bitmap_glyph_bbox( FT_Glyph bitmap_glyph, + FT_BBox* cbox ) + { + FT_BitmapGlyph glyph = (FT_BitmapGlyph)bitmap_glyph; + + + cbox->xMin = glyph->left << 6; + cbox->xMax = cbox->xMin + ( glyph->bitmap.width << 6 ); + cbox->yMax = glyph->top << 6; + cbox->yMin = cbox->yMax - ( glyph->bitmap.rows << 6 ); + } + + + FT_CALLBACK_TABLE_DEF + const FT_Glyph_Class ft_bitmap_glyph_class = + { + sizeof ( FT_BitmapGlyphRec ), + FT_GLYPH_FORMAT_BITMAP, + + ft_bitmap_glyph_init, + ft_bitmap_glyph_done, + ft_bitmap_glyph_copy, + 0, /* FT_Glyph_TransformFunc */ + ft_bitmap_glyph_bbox, + 0 /* FT_Glyph_PrepareFunc */ + }; + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** FT_OutlineGlyph support ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + + FT_CALLBACK_DEF( FT_Error ) + ft_outline_glyph_init( FT_Glyph outline_glyph, + FT_GlyphSlot slot ) + { + FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; + FT_Error error = FT_Err_Ok; + FT_Library library = FT_GLYPH( glyph )->library; + FT_Outline* source = &slot->outline; + FT_Outline* target = &glyph->outline; + + + /* check format in glyph slot */ + if ( slot->format != FT_GLYPH_FORMAT_OUTLINE ) + { + error = FT_Err_Invalid_Glyph_Format; + goto Exit; + } + + /* allocate new outline */ + error = FT_Outline_New( library, source->n_points, source->n_contours, + &glyph->outline ); + if ( error ) + goto Exit; + + /* copy it */ + 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 */ + target->flags = source->flags | FT_OUTLINE_OWNER; + + Exit: + return error; + } + + + FT_CALLBACK_DEF( void ) + ft_outline_glyph_done( FT_Glyph outline_glyph ) + { + FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; + + + FT_Outline_Done( FT_GLYPH( glyph )->library, &glyph->outline ); + } + + + FT_CALLBACK_DEF( FT_Error ) + ft_outline_glyph_copy( FT_Glyph outline_source, + FT_Glyph outline_target ) + { + FT_OutlineGlyph source = (FT_OutlineGlyph)outline_source; + FT_OutlineGlyph target = (FT_OutlineGlyph)outline_target; + FT_Error error; + FT_Library library = FT_GLYPH( source )->library; + + + error = FT_Outline_New( library, source->outline.n_points, + source->outline.n_contours, &target->outline ); + if ( !error ) + FT_Outline_Copy( &source->outline, &target->outline ); + + return error; + } + + + FT_CALLBACK_DEF( void ) + ft_outline_glyph_transform( FT_Glyph outline_glyph, + FT_Matrix* matrix, + FT_Vector* delta ) + { + FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; + + + if ( matrix ) + FT_Outline_Transform( &glyph->outline, matrix ); + + if ( delta ) + FT_Outline_Translate( &glyph->outline, delta->x, delta->y ); + } + + + FT_CALLBACK_DEF( void ) + ft_outline_glyph_bbox( FT_Glyph outline_glyph, + FT_BBox* bbox ) + { + FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; + + + FT_Outline_Get_CBox( &glyph->outline, bbox ); + } + + + FT_CALLBACK_DEF( FT_Error ) + ft_outline_glyph_prepare( FT_Glyph outline_glyph, + FT_GlyphSlot slot ) + { + FT_OutlineGlyph glyph = (FT_OutlineGlyph)outline_glyph; + + + slot->format = FT_GLYPH_FORMAT_OUTLINE; + slot->outline = glyph->outline; + slot->outline.flags &= ~FT_OUTLINE_OWNER; + + return FT_Err_Ok; + } + + + FT_CALLBACK_TABLE_DEF + const FT_Glyph_Class ft_outline_glyph_class = + { + sizeof ( FT_OutlineGlyphRec ), + FT_GLYPH_FORMAT_OUTLINE, + + ft_outline_glyph_init, + ft_outline_glyph_done, + ft_outline_glyph_copy, + ft_outline_glyph_transform, + ft_outline_glyph_bbox, + ft_outline_glyph_prepare + }; + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** FT_Glyph class and API ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + static FT_Error + ft_new_glyph( FT_Library library, + const FT_Glyph_Class* clazz, + FT_Glyph* aglyph ) + { + FT_Memory memory = library->memory; + FT_Error error; + FT_Glyph glyph; + + + *aglyph = 0; + + if ( !FT_ALLOC( glyph, clazz->glyph_size ) ) + { + glyph->library = library; + glyph->clazz = clazz; + glyph->format = clazz->glyph_format; + + *aglyph = glyph; + } + + return error; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Glyph_Copy( FT_Glyph source, + FT_Glyph *target ) + { + FT_Glyph copy; + FT_Error error; + const FT_Glyph_Class* clazz; + + + /* check arguments */ + if ( !target || !source || !source->clazz ) + { + error = FT_Err_Invalid_Argument; + goto Exit; + } + + *target = 0; + + clazz = source->clazz; + error = ft_new_glyph( source->library, clazz, © ); + if ( error ) + goto Exit; + + copy->advance = source->advance; + copy->format = source->format; + + if ( clazz->glyph_copy ) + error = clazz->glyph_copy( source, copy ); + + if ( error ) + FT_Done_Glyph( copy ); + else + *target = copy; + + Exit: + return error; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Glyph( FT_GlyphSlot slot, + FT_Glyph *aglyph ) + { + FT_Library library; + FT_Error error; + FT_Glyph glyph; + + const FT_Glyph_Class* clazz = 0; + + + if ( !slot ) + return FT_Err_Invalid_Slot_Handle; + + library = slot->library; + + if ( !aglyph ) + return FT_Err_Invalid_Argument; + + /* if it is a bitmap, that's easy :-) */ + if ( slot->format == FT_GLYPH_FORMAT_BITMAP ) + clazz = &ft_bitmap_glyph_class; + + /* it it is an outline too */ + else if ( slot->format == FT_GLYPH_FORMAT_OUTLINE ) + clazz = &ft_outline_glyph_class; + + else + { + /* try to find a renderer that supports the glyph image format */ + FT_Renderer render = FT_Lookup_Renderer( library, slot->format, 0 ); + + + if ( render ) + clazz = &render->glyph_class; + } + + if ( !clazz ) + { + error = FT_Err_Invalid_Glyph_Format; + goto Exit; + } + + /* create FT_Glyph object */ + error = ft_new_glyph( library, clazz, &glyph ); + if ( error ) + goto Exit; + + /* copy advance while converting it to 16.16 format */ + glyph->advance.x = slot->advance.x << 10; + glyph->advance.y = slot->advance.y << 10; + + /* now import the image from the glyph slot */ + error = clazz->glyph_init( glyph, slot ); + + /* if an error occurred, destroy the glyph */ + if ( error ) + FT_Done_Glyph( glyph ); + else + *aglyph = glyph; + + Exit: + return error; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Glyph_Transform( FT_Glyph glyph, + FT_Matrix* matrix, + FT_Vector* delta ) + { + const FT_Glyph_Class* clazz; + FT_Error error = FT_Err_Ok; + + + if ( !glyph || !glyph->clazz ) + error = FT_Err_Invalid_Argument; + else + { + clazz = glyph->clazz; + if ( clazz->glyph_transform ) + { + /* transform glyph image */ + clazz->glyph_transform( glyph, matrix, delta ); + + /* transform advance vector */ + if ( matrix ) + FT_Vector_Transform( &glyph->advance, matrix ); + } + else + error = FT_Err_Invalid_Glyph_Format; + } + return error; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( void ) + FT_Glyph_Get_CBox( FT_Glyph glyph, + FT_UInt bbox_mode, + FT_BBox *acbox ) + { + const FT_Glyph_Class* clazz; + + + if ( !acbox ) + return; + + acbox->xMin = acbox->yMin = acbox->xMax = acbox->yMax = 0; + + if ( !glyph || !glyph->clazz ) + return; + else + { + clazz = glyph->clazz; + if ( !clazz->glyph_bbox ) + return; + else + { + /* retrieve bbox in 26.6 coordinates */ + clazz->glyph_bbox( glyph, acbox ); + + /* perform grid fitting if needed */ + if ( bbox_mode == FT_GLYPH_BBOX_GRIDFIT || + bbox_mode == FT_GLYPH_BBOX_PIXELS ) + { + acbox->xMin = FT_PIX_FLOOR( acbox->xMin ); + acbox->yMin = FT_PIX_FLOOR( acbox->yMin ); + acbox->xMax = FT_PIX_CEIL( acbox->xMax ); + acbox->yMax = FT_PIX_CEIL( acbox->yMax ); + } + + /* convert to integer pixels if needed */ + if ( bbox_mode == FT_GLYPH_BBOX_TRUNCATE || + bbox_mode == FT_GLYPH_BBOX_PIXELS ) + { + acbox->xMin >>= 6; + acbox->yMin >>= 6; + acbox->xMax >>= 6; + acbox->yMax >>= 6; + } + } + } + return; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Glyph_To_Bitmap( FT_Glyph* the_glyph, + FT_Render_Mode render_mode, + FT_Vector* origin, + FT_Bool destroy ) + { + FT_GlyphSlotRec dummy; + FT_GlyphSlot_InternalRec dummy_internal; + FT_Error error = FT_Err_Ok; + FT_Glyph glyph; + FT_BitmapGlyph bitmap = NULL; + + const FT_Glyph_Class* clazz; + + + /* check argument */ + if ( !the_glyph ) + goto Bad; + + /* we render the glyph into a glyph bitmap using a `dummy' glyph slot */ + /* then calling FT_Render_Glyph_Internal() */ + + glyph = *the_glyph; + if ( !glyph ) + goto Bad; + + clazz = glyph->clazz; + + /* when called with a bitmap glyph, do nothing and return successfully */ + if ( clazz == &ft_bitmap_glyph_class ) + goto Exit; + + if ( !clazz || !clazz->glyph_prepare ) + goto Bad; + + FT_MEM_ZERO( &dummy, sizeof ( dummy ) ); + FT_MEM_ZERO( &dummy_internal, sizeof ( dummy_internal ) ); + dummy.internal = &dummy_internal; + dummy.library = glyph->library; + dummy.format = clazz->glyph_format; + + /* create result bitmap glyph */ + error = ft_new_glyph( glyph->library, &ft_bitmap_glyph_class, + (FT_Glyph*)&bitmap ); + if ( error ) + goto Exit; + +#if 1 + /* if `origin' is set, translate the glyph image */ + if ( origin ) + FT_Glyph_Transform( glyph, 0, origin ); +#else + FT_UNUSED( origin ); +#endif + + /* prepare dummy slot for rendering */ + error = clazz->glyph_prepare( glyph, &dummy ); + if ( !error ) + error = FT_Render_Glyph_Internal( glyph->library, &dummy, render_mode ); + +#if 1 + if ( !destroy && origin ) + { + FT_Vector v; + + + v.x = -origin->x; + v.y = -origin->y; + FT_Glyph_Transform( glyph, 0, &v ); + } +#endif + + if ( error ) + goto Exit; + + /* in case of success, copy the bitmap to the glyph bitmap */ + error = ft_bitmap_glyph_init( (FT_Glyph)bitmap, &dummy ); + if ( error ) + goto Exit; + + /* copy advance */ + bitmap->root.advance = glyph->advance; + + if ( destroy ) + FT_Done_Glyph( glyph ); + + *the_glyph = FT_GLYPH( bitmap ); + + Exit: + if ( error && bitmap ) + FT_Done_Glyph( FT_GLYPH( bitmap ) ); + + return error; + + Bad: + error = FT_Err_Invalid_Argument; + goto Exit; + } + + + /* documentation is in ftglyph.h */ + + FT_EXPORT_DEF( void ) + FT_Done_Glyph( FT_Glyph glyph ) + { + if ( glyph ) + { + FT_Memory memory = glyph->library->memory; + const FT_Glyph_Class* clazz = glyph->clazz; + + + if ( clazz->glyph_done ) + clazz->glyph_done( glyph ); + + FT_FREE( glyph ); + } + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftinit.c b/nx-X11/extras/freetype2/src/base/ftinit.c new file mode 100644 index 000000000..79ba9f0bd --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftinit.c @@ -0,0 +1,161 @@ +/***************************************************************************/ +/* */ +/* ftinit.c */ +/* */ +/* FreeType initialization layer (body). */ +/* */ +/* Copyright 1996-2001, 2002 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. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* The purpose of this file is to implement the following two */ + /* functions: */ + /* */ + /* FT_Add_Default_Modules(): */ + /* This function is used to add the set of default modules to a */ + /* fresh new library object. The set is taken from the header file */ + /* `freetype/config/ftmodule.h'. See the document `FreeType 2.0 */ + /* Build System' for more information. */ + /* */ + /* FT_Init_FreeType(): */ + /* This function creates a system object for the current platform, */ + /* builds a library out of it, then calls FT_Default_Drivers(). */ + /* */ + /* Note that even if FT_Init_FreeType() uses the implementation of the */ + /* system object defined at build time, client applications are still */ + /* able to provide their own `ftsystem.c'. */ + /* */ + /*************************************************************************/ + + +#include <ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_MODULE_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_init + +#undef FT_USE_MODULE +#ifdef __cplusplus +#define FT_USE_MODULE( x ) extern "C" const FT_Module_Class* x; +#else +#define FT_USE_MODULE( x ) extern const FT_Module_Class* x; +#endif + + +#include FT_CONFIG_MODULES_H + + +#undef FT_USE_MODULE +#define FT_USE_MODULE( x ) (const FT_Module_Class*)&x, + + static + const FT_Module_Class* const ft_default_modules[] = + { +#include FT_CONFIG_MODULES_H + 0 + }; + + + /* documentation is in ftmodule.h */ + + FT_EXPORT_DEF( void ) + FT_Add_Default_Modules( FT_Library library ) + { + FT_Error error; + const FT_Module_Class* const* cur; + + + /* test for valid `library' delayed to FT_Add_Module() */ + + cur = ft_default_modules; + while ( *cur ) + { + error = FT_Add_Module( library, *cur ); + /* notify errors, but don't stop */ + if ( error ) + { + FT_ERROR(( "FT_Add_Default_Module: Cannot install `%s', error = 0x%x\n", + (*cur)->module_name, error )); + } + cur++; + } + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Init_FreeType( FT_Library *alibrary ) + { + FT_Error error; + FT_Memory memory; + + + /* First of all, allocate a new system object -- this function is part */ + /* of the system-specific component, i.e. `ftsystem.c'. */ + + memory = FT_New_Memory(); + if ( !memory ) + { + FT_ERROR(( "FT_Init_FreeType: cannot find memory manager\n" )); + return FT_Err_Unimplemented_Feature; + } + + /* build a library out of it, then fill it with the set of */ + /* default drivers. */ + + error = FT_New_Library( memory, alibrary ); + if ( !error ) + { + (*alibrary)->version_major = FREETYPE_MAJOR; + (*alibrary)->version_minor = FREETYPE_MINOR; + (*alibrary)->version_patch = FREETYPE_PATCH; + + FT_Add_Default_Modules( *alibrary ); + } + + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Done_FreeType( FT_Library library ) + { + if ( library ) + { + FT_Memory memory = library->memory; + + + /* Discard the library object */ + FT_Done_Library( library ); + + /* discard memory manager */ + FT_Done_Memory( memory ); + } + + return FT_Err_Ok; + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftmac.c b/nx-X11/extras/freetype2/src/base/ftmac.c new file mode 100644 index 000000000..c71475382 --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftmac.c @@ -0,0 +1,1092 @@ +/***************************************************************************/ +/* */ +/* ftmac.c */ +/* */ +/* Mac FOND support. Written by just@letterror.com. */ +/* */ +/* Copyright 1996-2001, 2002, 2003, 2004 by */ +/* Just van Rossum, 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. */ +/* */ +/***************************************************************************/ + + + /* + Notes + + Mac suitcase files can (and often do!) contain multiple fonts. To + support this I use the face_index argument of FT_(Open|New)_Face() + functions, and pretend the suitcase file is a collection. + + Warning: Although the FOND driver sets face->num_faces field to the + number of available fonts, but the Type 1 driver sets it to 1 anyway. + So this field is currently not reliable, and I don't see a clean way + to resolve that. The face_index argument translates to + + Get1IndResource( 'FOND', face_index + 1 ); + + so clients should figure out the resource index of the FOND. + (I'll try to provide some example code for this at some point.) + + The Mac FOND support works roughly like this: + + - Check whether the offered stream points to a Mac suitcase file. + This is done by checking the file type: it has to be 'FFIL' or 'tfil'. + The stream that gets passed to our init_face() routine is a stdio + stream, which isn't usable for us, since the FOND resources live + in the resource fork. So we just grab the stream->pathname field. + + - Read the FOND resource into memory, then check whether there is + a TrueType font and/or(!) a Type 1 font available. + + - If there is a Type 1 font available (as a separate 'LWFN' file), + read its data into memory, massage it slightly so it becomes + PFB data, wrap it into a memory stream, load the Type 1 driver + and delegate the rest of the work to it by calling FT_Open_Face(). + (XXX TODO: after this has been done, the kerning data from the FOND + resource should be appended to the face: On the Mac there are usually + no AFM files available. However, this is tricky since we need to map + Mac char codes to ps glyph names to glyph ID's...) + + - If there is a TrueType font (an 'sfnt' resource), read it into + memory, wrap it into a memory stream, load the TrueType driver + and delegate the rest of the work to it, by calling FT_Open_Face(). + */ + + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_INTERNAL_STREAM_H + +#ifdef __GNUC__ +#include "../truetype/ttobjs.h" +#include "../type1/t1objs.h" + /* This is for Mac OS X. Without redefinition, OS_INLINE */ + /* expands to `static inline' which doesn't survive the */ + /* -ansi compilation flag of GCC. */ +#define OS_INLINE static __inline__ +#include <Carbon/Carbon.h> +#else +#include "truetype/ttobjs.h" +#include "type1/t1objs.h" +#include <Resources.h> +#include <Fonts.h> +#include <Errors.h> +#include <Files.h> +#include <TextUtils.h> +#endif + +#if defined( __MWERKS__ ) && !TARGET_RT_MAC_MACHO +#include <FSp_fopen.h> +#endif + +#include FT_MAC_H + + + /* Set PREFER_LWFN to 1 if LWFN (Type 1) is preferred over + TrueType in case *both* are available (this is not common, + but it *is* possible). */ +#ifndef PREFER_LWFN +#define PREFER_LWFN 1 +#endif + + +#if defined( __MWERKS__ ) && !TARGET_RT_MAC_MACHO + +#define STREAM_FILE( stream ) ( (FILE*)stream->descriptor.pointer ) + + + FT_CALLBACK_DEF( void ) + ft_FSp_stream_close( FT_Stream stream ) + { + fclose( STREAM_FILE( stream ) ); + + stream->descriptor.pointer = NULL; + stream->size = 0; + stream->base = 0; + } + + + FT_CALLBACK_DEF( unsigned long ) + ft_FSp_stream_io( FT_Stream stream, + unsigned long offset, + unsigned char* buffer, + unsigned long count ) + { + FILE* file; + + + file = STREAM_FILE( stream ); + + fseek( file, offset, SEEK_SET ); + + return (unsigned long)fread( buffer, 1, count, file ); + } + +#endif /* __MWERKS__ && !TARGET_RT_MAC_MACHO */ + + + /* Given a pathname, fill in a file spec. */ + static int + file_spec_from_path( const char* pathname, + FSSpec* spec ) + { + +#if !TARGET_API_MAC_OS8 && \ + !( defined( __MWERKS__ ) && !TARGET_RT_MAC_MACHO ) + + OSErr e; + FSRef ref; + + + e = FSPathMakeRef( (UInt8 *)pathname, &ref, false /* not a directory */ ); + if ( e == noErr ) + e = FSGetCatalogInfo( &ref, kFSCatInfoNone, NULL, NULL, spec, NULL ); + + return ( e == noErr ) ? 0 : (-1); + +#else + + Str255 p_path; + FT_ULong path_len; + + + /* convert path to a pascal string */ + path_len = ft_strlen( pathname ); + if ( path_len > 255 ) + return -1; + p_path[0] = (unsigned char)path_len; + ft_strncpy( (char*)p_path + 1, pathname, path_len ); + + if ( FSMakeFSSpec( 0, 0, p_path, spec ) != noErr ) + return -1; + else + return 0; + +#endif + + } + + + /* Return the file type of the file specified by spec. */ + static OSType + get_file_type( const FSSpec* spec ) + { + FInfo finfo; + + + if ( FSpGetFInfo( spec, &finfo ) != noErr ) + return 0; /* file might not exist */ + + return finfo.fdType; + } + + + /* Given a PostScript font name, create the Macintosh LWFN file name. */ + static void + create_lwfn_name( char* ps_name, + Str255 lwfn_file_name ) + { + int max = 5, count = 0; + FT_Byte* p = lwfn_file_name; + FT_Byte* q = (FT_Byte*)ps_name; + + + lwfn_file_name[0] = 0; + + while ( *q ) + { + if ( ft_isupper( *q ) ) + { + if ( count ) + max = 3; + count = 0; + } + if ( count < max && ( ft_isalnum( *q ) || *q == '_' ) ) + { + *++p = *q; + lwfn_file_name[0]++; + count++; + } + q++; + } + } + + + /* Given a file reference, answer its location as a vRefNum + and a dirID. */ + static FT_Error + get_file_location( short ref_num, + short* v_ref_num, + long* dir_id, + unsigned char* file_name ) + { + FCBPBRec pb; + OSErr error; + + + pb.ioNamePtr = file_name; + pb.ioVRefNum = 0; + pb.ioRefNum = ref_num; + pb.ioFCBIndx = 0; + + error = PBGetFCBInfoSync( &pb ); + if ( error == noErr ) + { + *v_ref_num = pb.ioFCBVRefNum; + *dir_id = pb.ioFCBParID; + } + return error; + } + + + /* Make a file spec for an LWFN file from a FOND resource and + a file name. */ + static FT_Error + make_lwfn_spec( Handle fond, + const unsigned char* file_name, + FSSpec* spec ) + { + FT_Error error; + short ref_num, v_ref_num; + long dir_id; + Str255 fond_file_name; + + + ref_num = HomeResFile( fond ); + + error = ResError(); + if ( !error ) + error = get_file_location( ref_num, &v_ref_num, + &dir_id, fond_file_name ); + if ( !error ) + error = FSMakeFSSpec( v_ref_num, dir_id, file_name, spec ); + + return error; + } + + + static short + count_faces_sfnt( char *fond_data ) + { + /* The count is 1 greater than the value in the FOND. */ + /* Isn't that cute? :-) */ + + return 1 + *( (short *)( fond_data + sizeof ( FamRec ) ) ); + } + + + /* Look inside the FOND data, answer whether there should be an SFNT + resource, and answer the name of a possible LWFN Type 1 file. + + Thanks to Paul Miller (paulm@profoundeffects.com) for the fix + to load a face OTHER than the first one in the FOND! + */ + + + static void + parse_fond( char* fond_data, + short* have_sfnt, + short* sfnt_id, + Str255 lwfn_file_name, + short face_index ) + { + AsscEntry* assoc; + AsscEntry* base_assoc; + FamRec* fond; + + + *sfnt_id = 0; + *have_sfnt = 0; + lwfn_file_name[0] = 0; + + fond = (FamRec*)fond_data; + assoc = (AsscEntry*)( fond_data + sizeof ( FamRec ) + 2 ); + base_assoc = assoc; + + /* Let's do a little range checking before we get too excited here */ + if ( face_index < count_faces_sfnt( fond_data ) ) + { + assoc += face_index; /* add on the face_index! */ + + /* if the face at this index is not scalable, + fall back to the first one (old behavior) */ + if ( assoc->fontSize == 0 ) + { + *have_sfnt = 1; + *sfnt_id = assoc->fontID; + } + else if ( base_assoc->fontSize == 0 ) + { + *have_sfnt = 1; + *sfnt_id = base_assoc->fontID; + } + } + + if ( fond->ffStylOff ) + { + unsigned char* p = (unsigned char*)fond_data; + StyleTable* style; + unsigned short string_count; + char ps_name[256]; + unsigned char* names[64]; + int i; + + + p += fond->ffStylOff; + style = (StyleTable*)p; + p += sizeof ( StyleTable ); + string_count = *(unsigned short*)(p); + p += sizeof ( short ); + + for ( i = 0 ; i < string_count && i < 64; i++ ) + { + names[i] = p; + p += names[i][0]; + p++; + } + + { + size_t ps_name_len = (size_t)names[0][0]; + + + if ( ps_name_len != 0 ) + { + ft_memcpy(ps_name, names[0] + 1, ps_name_len); + ps_name[ps_name_len] = 0; + } + if ( style->indexes[0] > 1 ) + { + unsigned char* suffixes = names[style->indexes[0] - 1]; + + + for ( i = 1; i <= suffixes[0]; i++ ) + { + unsigned char* s; + size_t j = suffixes[i] - 1; + + + if ( j < string_count && ( s = names[j] ) != NULL ) + { + size_t s_len = (size_t)s[0]; + + + if ( s_len != 0 && ps_name_len + s_len < sizeof ( ps_name ) ) + { + ft_memcpy( ps_name + ps_name_len, s + 1, s_len ); + ps_name_len += s_len; + ps_name[ps_name_len] = 0; + } + } + } + } + } + + create_lwfn_name( ps_name, lwfn_file_name ); + } + } + + + static short + count_faces( Handle fond ) + { + short sfnt_id, have_sfnt, have_lwfn = 0; + Str255 lwfn_file_name; + FSSpec lwfn_spec; + + + HLock( fond ); + parse_fond( *fond, &have_sfnt, &sfnt_id, lwfn_file_name, 0 ); + HUnlock( fond ); + + if ( lwfn_file_name[0] ) + { + if ( make_lwfn_spec( fond, lwfn_file_name, &lwfn_spec ) == FT_Err_Ok ) + have_lwfn = 1; /* yeah, we got one! */ + else + have_lwfn = 0; /* no LWFN file found */ + } + + if ( have_lwfn && ( !have_sfnt || PREFER_LWFN ) ) + return 1; + else + return count_faces_sfnt( *fond ); + } + + + /* Read Type 1 data from the POST resources inside the LWFN file, + return a PFB buffer. This is somewhat convoluted because the FT2 + PFB parser wants the ASCII header as one chunk, and the LWFN + chunks are often not organized that way, so we'll glue chunks + of the same type together. */ + static FT_Error + read_lwfn( FT_Memory memory, + short res_ref, + FT_Byte** pfb_data, + FT_ULong* size ) + { + FT_Error error = FT_Err_Ok; + short res_id; + unsigned char *buffer, *p, *size_p = NULL; + FT_ULong total_size = 0; + FT_ULong post_size, pfb_chunk_size; + Handle post_data; + char code, last_code; + + + UseResFile( res_ref ); + + /* First pass: load all POST resources, and determine the size of */ + /* the output buffer. */ + res_id = 501; + last_code = -1; + + for (;;) + { + post_data = Get1Resource( 'POST', res_id++ ); + if ( post_data == NULL ) + break; /* we're done */ + + code = (*post_data)[0]; + + if ( code != last_code ) + { + if ( code == 5 ) + total_size += 2; /* just the end code */ + else + total_size += 6; /* code + 4 bytes chunk length */ + } + + total_size += GetHandleSize( post_data ) - 2; + last_code = code; + } + + if ( FT_ALLOC( buffer, (FT_Long)total_size ) ) + goto Error; + + /* Second pass: append all POST data to the buffer, add PFB fields. */ + /* Glue all consecutive chunks of the same type together. */ + p = buffer; + res_id = 501; + last_code = -1; + pfb_chunk_size = 0; + + for (;;) + { + post_data = Get1Resource( 'POST', res_id++ ); + if ( post_data == NULL ) + break; /* we're done */ + + post_size = (FT_ULong)GetHandleSize( post_data ) - 2; + code = (*post_data)[0]; + + if ( code != last_code ) + { + if ( last_code != -1 ) + { + /* we're done adding a chunk, fill in the size field */ + if ( size_p != NULL ) + { + *size_p++ = (FT_Byte)( pfb_chunk_size & 0xFF ); + *size_p++ = (FT_Byte)( ( pfb_chunk_size >> 8 ) & 0xFF ); + *size_p++ = (FT_Byte)( ( pfb_chunk_size >> 16 ) & 0xFF ); + *size_p++ = (FT_Byte)( ( pfb_chunk_size >> 24 ) & 0xFF ); + } + pfb_chunk_size = 0; + } + + *p++ = 0x80; + if ( code == 5 ) + *p++ = 0x03; /* the end */ + else if ( code == 2 ) + *p++ = 0x02; /* binary segment */ + else + *p++ = 0x01; /* ASCII segment */ + + if ( code != 5 ) + { + size_p = p; /* save for later */ + p += 4; /* make space for size field */ + } + } + + ft_memcpy( p, *post_data + 2, post_size ); + pfb_chunk_size += post_size; + p += post_size; + last_code = code; + } + + *pfb_data = buffer; + *size = total_size; + + Error: + CloseResFile( res_ref ); + return error; + } + + + /* Finalizer for a memory stream; gets called by FT_Done_Face(). + It frees the memory it uses. */ + static void + memory_stream_close( FT_Stream stream ) + { + FT_Memory memory = stream->memory; + + + FT_FREE( stream->base ); + + stream->size = 0; + stream->base = 0; + stream->close = 0; + } + + + /* Create a new memory stream from a buffer and a size. */ + static FT_Error + new_memory_stream( FT_Library library, + FT_Byte* base, + FT_ULong size, + FT_Stream_CloseFunc close, + FT_Stream *astream ) + { + FT_Error error; + FT_Memory memory; + FT_Stream stream; + + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( !base ) + return FT_Err_Invalid_Argument; + + *astream = 0; + memory = library->memory; + if ( FT_NEW( stream ) ) + goto Exit; + + FT_Stream_OpenMemory( stream, base, size ); + + stream->close = close; + + *astream = stream; + + Exit: + return error; + } + + + /* Create a new FT_Face given a buffer and a driver name. */ + static FT_Error + open_face_from_buffer( FT_Library library, + FT_Byte* base, + FT_ULong size, + FT_Long face_index, + char* driver_name, + FT_Face *aface ) + { + FT_Open_Args args; + FT_Error error; + FT_Stream stream; + FT_Memory memory = library->memory; + + + error = new_memory_stream( library, + base, + size, + memory_stream_close, + &stream ); + if ( error ) + { + FT_FREE( base ); + return error; + } + + args.flags = FT_OPEN_STREAM; + args.stream = stream; + if ( driver_name ) + { + args.flags = args.flags | FT_OPEN_DRIVER; + args.driver = FT_Get_Module( library, driver_name ); + } + + /* At this point, face_index has served its purpose; */ + /* whoever calls this function has already used it to */ + /* locate the correct font data. We should not propagate */ + /* this index to FT_Open_Face() (unless it is negative). */ + + if ( face_index > 0 ) + face_index = 0; + + error = FT_Open_Face( library, &args, face_index, aface ); + if ( error == FT_Err_Ok ) + (*aface)->face_flags &= ~FT_FACE_FLAG_EXTERNAL_STREAM; + + return error; + } + + + static FT_Error + OpenFileAsResource( const FSSpec* spec, + short *p_res_ref ) + { + FT_Error error; + +#if !TARGET_API_MAC_OS8 + + FSRef hostContainerRef; + + + error = FSpMakeFSRef( spec, &hostContainerRef ); + if ( error == noErr ) + error = FSOpenResourceFile( &hostContainerRef, + 0, NULL, fsRdPerm, p_res_ref ); + + /* If the above fails, then it is probably not a resource file */ + /* However, it has been reported that FSOpenResourceFile() sometimes */ + /* fails on some old resource-fork files, which FSpOpenResFile() can */ + /* open. So, just try again with FSpOpenResFile() and see what */ + /* happens :-) */ + + if ( error != noErr ) + +#endif /* !TARGET_API_MAC_OS8 */ + + { + *p_res_ref = FSpOpenResFile( spec, fsRdPerm ); + error = ResError(); + } + + return error ? FT_Err_Cannot_Open_Resource : FT_Err_Ok; + } + + + /* Create a new FT_Face from a file spec to an LWFN file. */ + static FT_Error + FT_New_Face_From_LWFN( FT_Library library, + const FSSpec* lwfn_spec, + FT_Long face_index, + FT_Face *aface ) + { + FT_Byte* pfb_data; + FT_ULong pfb_size; + FT_Error error; + short res_ref; + + + error = OpenFileAsResource( lwfn_spec, &res_ref ); + if ( error ) + return error; + + error = read_lwfn( library->memory, res_ref, &pfb_data, &pfb_size ); + if ( error ) + return error; + + return open_face_from_buffer( library, + pfb_data, + pfb_size, + face_index, + "type1", + aface ); + } + + + /* Create a new FT_Face from an SFNT resource, specified by res ID. */ + static FT_Error + FT_New_Face_From_SFNT( FT_Library library, + short sfnt_id, + FT_Long face_index, + FT_Face *aface ) + { + Handle sfnt = NULL; + FT_Byte* sfnt_data; + size_t sfnt_size; + FT_Error error = 0; + FT_Memory memory = library->memory; + int is_cff; + + + sfnt = GetResource( 'sfnt', sfnt_id ); + if ( ResError() ) + return FT_Err_Invalid_Handle; + + sfnt_size = (FT_ULong)GetHandleSize( sfnt ); + if ( FT_ALLOC( sfnt_data, (FT_Long)sfnt_size ) ) + { + ReleaseResource( sfnt ); + return error; + } + + HLock( sfnt ); + ft_memcpy( sfnt_data, *sfnt, sfnt_size ); + HUnlock( sfnt ); + ReleaseResource( sfnt ); + + is_cff = sfnt_size > 4 && sfnt_data[0] == 'O' && + sfnt_data[1] == 'T' && + sfnt_data[2] == 'T' && + sfnt_data[3] == 'O'; + + return open_face_from_buffer( library, + sfnt_data, + sfnt_size, + face_index, + is_cff ? "cff" : "truetype", + aface ); + } + + + /* Create a new FT_Face from a file spec to a suitcase file. */ + static FT_Error + FT_New_Face_From_Suitcase( FT_Library library, + short res_ref, + FT_Long face_index, + FT_Face *aface ) + { + FT_Error error = FT_Err_Ok; + short res_index; + Handle fond; + short num_faces; + + + UseResFile( res_ref ); + + for ( res_index = 1; ; ++res_index ) + { + fond = Get1IndResource( 'FOND', res_index ); + if ( ResError() ) + { + error = FT_Err_Cannot_Open_Resource; + goto Error; + } + if ( face_index < 0 ) + break; + + num_faces = count_faces( fond ); + if ( face_index < num_faces ) + break; + + face_index -= num_faces; + } + + error = FT_New_Face_From_FOND( library, fond, face_index, aface ); + + Error: + CloseResFile( res_ref ); + return error; + } + + + /* documentation is in ftmac.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_New_Face_From_FOND( FT_Library library, + Handle fond, + FT_Long face_index, + FT_Face *aface ) + { + short sfnt_id, have_sfnt, have_lwfn = 0; + Str255 lwfn_file_name; + short fond_id; + OSType fond_type; + Str255 fond_name; + FSSpec lwfn_spec; + + + GetResInfo( fond, &fond_id, &fond_type, fond_name ); + if ( ResError() != noErr || fond_type != 'FOND' ) + return FT_Err_Invalid_File_Format; + + HLock( fond ); + parse_fond( *fond, &have_sfnt, &sfnt_id, lwfn_file_name, face_index ); + HUnlock( fond ); + + if ( lwfn_file_name[0] ) + { + if ( make_lwfn_spec( fond, lwfn_file_name, &lwfn_spec ) == FT_Err_Ok ) + have_lwfn = 1; /* yeah, we got one! */ + else + have_lwfn = 0; /* no LWFN file found */ + } + + if ( have_lwfn && ( !have_sfnt || PREFER_LWFN ) ) + return FT_New_Face_From_LWFN( library, + &lwfn_spec, + face_index, + aface ); + else if ( have_sfnt ) + return FT_New_Face_From_SFNT( library, + sfnt_id, + face_index, + aface ); + + return FT_Err_Unknown_File_Format; + } + + + /* documentation is in ftmac.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_GetFile_From_Mac_Name( const char* fontName, + FSSpec* pathSpec, + FT_Long* face_index ) + { + OptionBits options = kFMUseGlobalScopeOption; + + FMFontFamilyIterator famIter; + OSStatus status = FMCreateFontFamilyIterator( NULL, NULL, + options, + &famIter ); + FMFont the_font = NULL; + FMFontFamily family = NULL; + + + *face_index = 0; + while ( status == 0 && !the_font ) + { + status = FMGetNextFontFamily( &famIter, &family ); + if ( status == 0 ) + { + int stat2; + FMFontFamilyInstanceIterator instIter; + Str255 famNameStr; + char famName[256]; + + + /* get the family name */ + FMGetFontFamilyName( family, famNameStr ); + CopyPascalStringToC( famNameStr, famName ); + + /* iterate through the styles */ + FMCreateFontFamilyInstanceIterator( family, &instIter ); + + *face_index = 0; + stat2 = 0; + while ( stat2 == 0 && !the_font ) + { + FMFontStyle style; + FMFontSize size; + FMFont font; + + + stat2 = FMGetNextFontFamilyInstance( &instIter, &font, + &style, &size ); + if ( stat2 == 0 && size == 0 ) + { + char fullName[256]; + + + /* build up a complete face name */ + ft_strcpy( fullName, famName ); + if ( style & bold ) + strcat( fullName, " Bold" ); + if ( style & italic ) + strcat( fullName, " Italic" ); + + /* compare with the name we are looking for */ + if ( ft_strcmp( fullName, fontName ) == 0 ) + { + /* found it! */ + the_font = font; + } + else + ++(*face_index); + } + } + + FMDisposeFontFamilyInstanceIterator( &instIter ); + } + } + + FMDisposeFontFamilyIterator( &famIter ); + + if ( the_font ) + { + FMGetFontContainer( the_font, pathSpec ); + return FT_Err_Ok; + } + else + return FT_Err_Unknown_File_Format; + } + + /* Common function to load a new FT_Face from a resource file. */ + + static FT_Error + FT_New_Face_From_Resource( FT_Library library, + const FSSpec *spec, + FT_Long face_index, + FT_Face *aface ) + { + OSType file_type; + short res_ref; + FT_Error error; + + + if ( OpenFileAsResource( spec, &res_ref ) == FT_Err_Ok ) + { + /* LWFN is a (very) specific file format, check for it explicitly */ + + file_type = get_file_type( spec ); + if ( file_type == 'LWFN' ) + return FT_New_Face_From_LWFN( library, spec, face_index, aface ); + + /* Otherwise the file type doesn't matter (there are more than */ + /* `FFIL' and `tfil'). Just try opening it as a font suitcase; */ + /* if it works, fine. */ + + error = FT_New_Face_From_Suitcase( library, res_ref, + face_index, aface ); + if ( error == 0 ) + return error; + + /* else forget about the resource fork and fall through to */ + /* data fork formats */ + + CloseResFile( res_ref ); + } + + /* let it fall through to normal loader (.ttf, .otf, etc.); */ + /* we signal this by returning no error and no FT_Face */ + *aface = NULL; + return 0; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Face */ + /* */ + /* <Description> */ + /* This is the Mac-specific implementation of FT_New_Face. In */ + /* addition to the standard FT_New_Face() functionality, it also */ + /* accepts pathnames to Mac suitcase files. For further */ + /* documentation see the original FT_New_Face() in freetype.h. */ + /* */ + FT_EXPORT_DEF( FT_Error ) + FT_New_Face( FT_Library library, + const char* pathname, + FT_Long face_index, + FT_Face *aface ) + { + FT_Open_Args args; + FSSpec spec; + FT_Error error; + + + /* test for valid `library' and `aface' delayed to FT_Open_Face() */ + if ( !pathname ) + return FT_Err_Invalid_Argument; + + if ( file_spec_from_path( pathname, &spec ) ) + return FT_Err_Invalid_Argument; + + error = FT_New_Face_From_Resource( library, &spec, face_index, aface ); + if ( error != 0 || *aface != NULL ) + return error; + + /* let it fall through to normal loader (.ttf, .otf, etc.) */ + args.flags = FT_OPEN_PATHNAME; + args.pathname = (char*)pathname; + return FT_Open_Face( library, &args, face_index, aface ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* FT_New_Face_From_FSSpec */ + /* */ + /* <Description> */ + /* FT_New_Face_From_FSSpec is identical to FT_New_Face except it */ + /* accepts an FSSpec instead of a path. */ + /* */ + FT_EXPORT_DEF( FT_Error ) + FT_New_Face_From_FSSpec( FT_Library library, + const FSSpec *spec, + FT_Long face_index, + FT_Face *aface ) + { + FT_Open_Args args; + FT_Error error; + FT_Stream stream; + FILE* file; + FT_Memory memory; + + + /* test for valid `library' and `aface' delayed to FT_Open_Face() */ + if ( !spec ) + return FT_Err_Invalid_Argument; + + error = FT_New_Face_From_Resource( library, spec, face_index, aface ); + if ( error != 0 || *aface != NULL ) + return error; + + /* let it fall through to normal loader (.ttf, .otf, etc.) */ + +#if defined( __MWERKS__ ) && !TARGET_RT_MAC_MACHO + + /* Codewarrior's C library can open a FILE from a FSSpec */ + /* but we must compile with FSp_fopen.c in addition to */ + /* runtime libraries. */ + + memory = library->memory; + + if ( FT_NEW( stream ) ) + return error; + stream->memory = memory; + + file = FSp_fopen( spec, "rb" ); + if ( !file ) + return FT_Err_Cannot_Open_Resource; + + fseek( file, 0, SEEK_END ); + stream->size = ftell( file ); + fseek( file, 0, SEEK_SET ); + + stream->descriptor.pointer = file; + stream->pathname.pointer = NULL; + stream->pos = 0; + + stream->read = ft_FSp_stream_io; + stream->close = ft_FSp_stream_close; + + args.flags = FT_OPEN_STREAM; + args.stream = stream; + + error = FT_Open_Face( library, &args, face_index, aface ); + if ( error == FT_Err_Ok ) + (*aface)->face_flags &= ~FT_FACE_FLAG_EXTERNAL_STREAM; + +#else /* !(__MWERKS__ && !TARGET_RT_MAC_MACHO) */ + + { + FSRef ref; + UInt8 path[256]; + OSErr err; + + + err = FSpMakeFSRef(spec, &ref); + if ( !err ) + { + err = FSRefMakePath( &ref, path, sizeof ( path ) ); + if ( !err ) + error = FT_New_Face( library, (const char*)path, + face_index, aface ); + } + if ( err ) + error = FT_Err_Cannot_Open_Resource; + } + +#endif /* !(__MWERKS__ && !TARGET_RT_MAC_MACHO) */ + + return error; + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftmm.c b/nx-X11/extras/freetype2/src/base/ftmm.c new file mode 100644 index 000000000..940f8640a --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftmm.c @@ -0,0 +1,202 @@ +/***************************************************************************/ +/* */ +/* ftmm.c */ +/* */ +/* Multiple Master font support (body). */ +/* */ +/* Copyright 1996-2001, 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. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_MULTIPLE_MASTERS_H +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_MULTIPLE_MASTERS_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_mm + + + static FT_Error + ft_face_get_mm_service( FT_Face face, + FT_Service_MultiMasters *aservice ) + { + FT_Error error; + + + *aservice = NULL; + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + error = FT_Err_Invalid_Argument; + + if ( FT_HAS_MULTIPLE_MASTERS( face ) ) + { + FT_FACE_LOOKUP_SERVICE( face, + *aservice, + MULTI_MASTERS ); + + if ( aservice ) + error = FT_Err_Ok; + } + + return error; + } + + + /* documentation is in ftmm.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Multi_Master( FT_Face face, + FT_Multi_Master *amaster ) + { + FT_Error error; + FT_Service_MultiMasters service; + + + error = ft_face_get_mm_service( face, &service ); + if ( !error ) + { + error = FT_Err_Invalid_Argument; + if ( service->get_mm ) + error = service->get_mm( face, amaster ); + } + + return error; + } + + + /* documentation is in ftmm.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_MM_Var( FT_Face face, + FT_MM_Var* *amaster ) + { + FT_Error error; + FT_Service_MultiMasters service; + + + error = ft_face_get_mm_service( face, &service ); + if ( !error ) + { + error = FT_Err_Invalid_Argument; + if ( service->get_mm_var ) + error = service->get_mm_var( face, amaster ); + } + + return error; + } + + + /* documentation is in ftmm.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_MM_Design_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Long* coords ) + { + FT_Error error; + FT_Service_MultiMasters service; + + + error = ft_face_get_mm_service( face, &service ); + if ( !error ) + { + error = FT_Err_Invalid_Argument; + if ( service->set_mm_design ) + error = service->set_mm_design( face, num_coords, coords ); + } + + return error; + } + + + /* documentation is in ftmm.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_Var_Design_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Error error; + FT_Service_MultiMasters service; + + + error = ft_face_get_mm_service( face, &service ); + if ( !error ) + { + error = FT_Err_Invalid_Argument; + if ( service->set_var_design ) + error = service->set_var_design( face, num_coords, coords ); + } + + return error; + } + + + /* documentation is in ftmm.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_MM_Blend_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Error error; + FT_Service_MultiMasters service; + + + error = ft_face_get_mm_service( face, &service ); + if ( !error ) + { + error = FT_Err_Invalid_Argument; + if ( service->set_mm_blend ) + error = service->set_mm_blend( face, num_coords, coords ); + } + + return error; + } + + + /* documentation is in ftmm.h */ + + /* This is exactly the same as the previous function. It exists for */ + /* orthogonality. */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_Var_Blend_Coordinates( FT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Error error; + FT_Service_MultiMasters service; + + + error = ft_face_get_mm_service( face, &service ); + if ( !error ) + { + error = FT_Err_Invalid_Argument; + if ( service->set_mm_blend ) + error = service->set_mm_blend( face, num_coords, coords ); + } + + return error; + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftnames.c b/nx-X11/extras/freetype2/src/base/ftnames.c new file mode 100644 index 000000000..7fde5c40b --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftnames.c @@ -0,0 +1,94 @@ +/***************************************************************************/ +/* */ +/* ftnames.c */ +/* */ +/* Simple interface to access SFNT name tables (which are used */ +/* to hold font names, copyright info, notices, etc.) (body). */ +/* */ +/* This is _not_ used to retrieve glyph names! */ +/* */ +/* Copyright 1996-2001, 2002 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_SFNT_NAMES_H +#include FT_INTERNAL_TRUETYPE_TYPES_H +#include FT_INTERNAL_STREAM_H + + +#ifdef TT_CONFIG_OPTION_SFNT_NAMES + + + /* documentation is in ftnames.h */ + + FT_EXPORT_DEF( FT_UInt ) + FT_Get_Sfnt_Name_Count( FT_Face face ) + { + return (face && FT_IS_SFNT( face )) ? ((TT_Face)face)->num_names : 0; + } + + + /* documentation is in ftnames.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Sfnt_Name( FT_Face face, + FT_UInt idx, + FT_SfntName *aname ) + { + FT_Error error = FT_Err_Invalid_Argument; + + + if ( aname && face && FT_IS_SFNT( face ) ) + { + TT_Face ttface = (TT_Face)face; + + + if ( idx < (FT_UInt)ttface->num_names ) + { + TT_NameEntryRec* entry = ttface->name_table.names + idx; + + + /* load name on demand */ + if ( entry->stringLength > 0 && entry->string == NULL ) + { + FT_Memory memory = face->memory; + FT_Stream stream = face->stream; + + + if ( FT_NEW_ARRAY ( entry->string, entry->stringLength ) || + FT_STREAM_SEEK( entry->stringOffset ) || + FT_STREAM_READ( entry->string, entry->stringLength ) ) + { + FT_FREE( entry->string ); + entry->stringLength = 0; + } + } + + aname->platform_id = entry->platformID; + aname->encoding_id = entry->encodingID; + aname->language_id = entry->languageID; + aname->name_id = entry->nameID; + aname->string = (FT_Byte*)entry->string; + aname->string_len = entry->stringLength; + + error = FT_Err_Ok; + } + } + + return error; + } + + +#endif /* TT_CONFIG_OPTION_SFNT_NAMES */ + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftobjs.c b/nx-X11/extras/freetype2/src/base/ftobjs.c new file mode 100644 index 000000000..bbd6ce6be --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftobjs.c @@ -0,0 +1,3311 @@ +/***************************************************************************/ +/* */ +/* ftobjs.c */ +/* */ +/* The FreeType private base classes (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. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_LIST_H +#include FT_OUTLINE_H +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_RFORK_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_SFNT_H /* for SFNT_Load_Table_Func */ +#include FT_TRUETYPE_TABLES_H +#include FT_TRUETYPE_IDS_H +#include FT_OUTLINE_H + +#include FT_SERVICE_SFNT_H +#include FT_SERVICE_POSTSCRIPT_NAME_H +#include FT_SERVICE_GLYPH_DICT_H +#include FT_SERVICE_TT_CMAP_H + + + FT_BASE_DEF( FT_Pointer ) + ft_service_list_lookup( FT_ServiceDesc service_descriptors, + const char* service_id ) + { + FT_Pointer result = NULL; + FT_ServiceDesc desc = service_descriptors; + + + if ( desc && service_id ) + { + for ( ; desc->serv_id != NULL; desc++ ) + { + if ( ft_strcmp( desc->serv_id, service_id ) == 0 ) + { + result = (FT_Pointer)desc->serv_data; + break; + } + } + } + + return result; + } + + + FT_BASE_DEF( void ) + ft_validator_init( FT_Validator valid, + const FT_Byte* base, + const FT_Byte* limit, + FT_ValidationLevel level ) + { + valid->base = base; + valid->limit = limit; + valid->level = level; + valid->error = 0; + } + + + FT_BASE_DEF( FT_Int ) + ft_validator_run( FT_Validator valid ) + { + int result; + + + result = ft_setjmp( valid->jump_buffer ); + return result; + } + + + FT_BASE_DEF( void ) + ft_validator_error( FT_Validator valid, + FT_Error error ) + { + valid->error = error; + ft_longjmp( valid->jump_buffer, 1 ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** S T R E A M ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /* create a new input stream from an FT_Open_Args structure */ + /* */ + FT_BASE_DEF( FT_Error ) + FT_Stream_New( FT_Library library, + const FT_Open_Args* args, + FT_Stream *astream ) + { + FT_Error error; + FT_Memory memory; + FT_Stream stream; + + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( !args ) + return FT_Err_Invalid_Argument; + + *astream = 0; + memory = library->memory; + + if ( FT_NEW( stream ) ) + goto Exit; + + stream->memory = memory; + + if ( args->flags & FT_OPEN_MEMORY ) + { + /* create a memory-based stream */ + FT_Stream_OpenMemory( stream, + (const FT_Byte*)args->memory_base, + args->memory_size ); + } + else if ( args->flags & FT_OPEN_PATHNAME ) + { + /* create a normal system stream */ + error = FT_Stream_Open( stream, args->pathname ); + stream->pathname.pointer = args->pathname; + } + else if ( ( args->flags & FT_OPEN_STREAM ) && args->stream ) + { + /* use an existing, user-provided stream */ + + /* in this case, we do not need to allocate a new stream object */ + /* since the caller is responsible for closing it himself */ + FT_FREE( stream ); + stream = args->stream; + } + else + error = FT_Err_Invalid_Argument; + + if ( error ) + FT_FREE( stream ); + else + stream->memory = memory; /* just to be certain */ + + *astream = stream; + + Exit: + return error; + } + + + FT_BASE_DEF( void ) + FT_Stream_Free( FT_Stream stream, + FT_Int external ) + { + if ( stream ) + { + FT_Memory memory = stream->memory; + + + FT_Stream_Close( stream ); + + if ( !external ) + FT_FREE( stream ); + } + } + + +#undef FT_COMPONENT +#define FT_COMPONENT trace_objs + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** FACE, SIZE & GLYPH SLOT OBJECTS ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + static FT_Error + ft_glyphslot_init( FT_GlyphSlot slot ) + { + FT_Driver driver = slot->face->driver; + FT_Driver_Class clazz = driver->clazz; + FT_Memory memory = driver->root.memory; + FT_Error error = FT_Err_Ok; + FT_Slot_Internal internal; + + + slot->library = driver->root.library; + + if ( FT_NEW( internal ) ) + goto Exit; + + slot->internal = internal; + + if ( FT_DRIVER_USES_OUTLINES( driver ) ) + error = FT_GlyphLoader_New( memory, &internal->loader ); + + if ( !error && clazz->init_slot ) + error = clazz->init_slot( slot ); + + Exit: + return error; + } + + + FT_BASE_DEF( void ) + ft_glyphslot_free_bitmap( FT_GlyphSlot slot ) + { + if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) + { + FT_Memory memory = FT_FACE_MEMORY( slot->face ); + + + FT_FREE( slot->bitmap.buffer ); + slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP; + } + else + { + /* assume that the bitmap buffer was stolen or not */ + /* allocated from the heap */ + slot->bitmap.buffer = NULL; + } + } + + + FT_BASE_DEF( void ) + ft_glyphslot_set_bitmap( FT_GlyphSlot slot, + FT_Byte* buffer ) + { + ft_glyphslot_free_bitmap( slot ); + + slot->bitmap.buffer = buffer; + + FT_ASSERT( (slot->internal->flags & FT_GLYPH_OWN_BITMAP) == 0 ); + } + + + FT_BASE_DEF( FT_Error ) + ft_glyphslot_alloc_bitmap( FT_GlyphSlot slot, + FT_ULong size ) + { + FT_Memory memory = FT_FACE_MEMORY( slot->face ); + + + if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) + FT_FREE( slot->bitmap.buffer ); + else + slot->internal->flags |= FT_GLYPH_OWN_BITMAP; + + return FT_MEM_ALLOC( slot->bitmap.buffer, size ); + } + + + static void + ft_glyphslot_clear( FT_GlyphSlot slot ) + { + /* free bitmap if needed */ + ft_glyphslot_free_bitmap( slot ); + + /* clear all public fields in the glyph slot */ + FT_ZERO( &slot->metrics ); + FT_ZERO( &slot->outline ); + + slot->bitmap.width = 0; + slot->bitmap.rows = 0; + slot->bitmap.pitch = 0; + slot->bitmap.pixel_mode = 0; + /* don't touch 'slot->bitmap.buffer'! */ + + slot->bitmap_left = 0; + slot->bitmap_top = 0; + slot->num_subglyphs = 0; + slot->subglyphs = 0; + slot->control_data = 0; + slot->control_len = 0; + slot->other = 0; + slot->format = FT_GLYPH_FORMAT_NONE; + + slot->linearHoriAdvance = 0; + slot->linearVertAdvance = 0; + } + + + static void + ft_glyphslot_done( FT_GlyphSlot slot ) + { + FT_Driver driver = slot->face->driver; + FT_Driver_Class clazz = driver->clazz; + FT_Memory memory = driver->root.memory; + + + if ( clazz->done_slot ) + clazz->done_slot( slot ); + + /* free bitmap buffer if needed */ + ft_glyphslot_free_bitmap( slot ); + + /* free glyph loader */ + if ( FT_DRIVER_USES_OUTLINES( driver ) ) + { + FT_GlyphLoader_Done( slot->internal->loader ); + slot->internal->loader = 0; + } + + FT_FREE( slot->internal ); + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( FT_Error ) + FT_New_GlyphSlot( FT_Face face, + FT_GlyphSlot *aslot ) + { + FT_Error error; + FT_Driver driver; + FT_Driver_Class clazz; + FT_Memory memory; + FT_GlyphSlot slot; + + + if ( !face || !aslot || !face->driver ) + return FT_Err_Invalid_Argument; + + *aslot = 0; + + driver = face->driver; + clazz = driver->clazz; + memory = driver->root.memory; + + FT_TRACE4(( "FT_New_GlyphSlot: Creating new slot object\n" )); + if ( !FT_ALLOC( slot, clazz->slot_object_size ) ) + { + slot->face = face; + + error = ft_glyphslot_init( slot ); + if ( error ) + { + ft_glyphslot_done( slot ); + FT_FREE( slot ); + goto Exit; + } + + *aslot = slot; + } + + Exit: + FT_TRACE4(( "FT_New_GlyphSlot: Return %d\n", error )); + return error; + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( void ) + FT_Done_GlyphSlot( FT_GlyphSlot slot ) + { + if ( slot ) + { + FT_Driver driver = slot->face->driver; + FT_Memory memory = driver->root.memory; + FT_GlyphSlot* parent; + FT_GlyphSlot cur; + + + /* Remove slot from its parent face's list */ + parent = &slot->face->glyph; + cur = *parent; + + while ( cur ) + { + if ( cur == slot ) + { + *parent = cur->next; + ft_glyphslot_done( slot ); + FT_FREE( slot ); + break; + } + cur = cur->next; + } + } + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( void ) + FT_Set_Transform( FT_Face face, + FT_Matrix* matrix, + FT_Vector* delta ) + { + FT_Face_Internal internal; + + + if ( !face ) + return; + + internal = face->internal; + + internal->transform_flags = 0; + + if ( !matrix ) + { + internal->transform_matrix.xx = 0x10000L; + internal->transform_matrix.xy = 0; + internal->transform_matrix.yx = 0; + internal->transform_matrix.yy = 0x10000L; + matrix = &internal->transform_matrix; + } + else + internal->transform_matrix = *matrix; + + /* set transform_flags bit flag 0 if `matrix' isn't the identity */ + if ( ( matrix->xy | matrix->yx ) || + matrix->xx != 0x10000L || + matrix->yy != 0x10000L ) + internal->transform_flags |= 1; + + if ( !delta ) + { + internal->transform_delta.x = 0; + internal->transform_delta.y = 0; + delta = &internal->transform_delta; + } + else + internal->transform_delta = *delta; + + /* set transform_flags bit flag 1 if `delta' isn't the null vector */ + if ( delta->x | delta->y ) + internal->transform_flags |= 2; + } + + + static FT_Renderer + ft_lookup_glyph_renderer( FT_GlyphSlot slot ); + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Load_Glyph( FT_Face face, + FT_UInt glyph_index, + FT_Int32 load_flags ) + { + FT_Error error; + FT_Driver driver; + FT_GlyphSlot slot; + FT_Library library; + FT_Bool autohint; + FT_Module hinter; + + + if ( !face || !face->size || !face->glyph ) + return FT_Err_Invalid_Face_Handle; + + if ( glyph_index >= (FT_UInt)face->num_glyphs ) + return FT_Err_Invalid_Argument; + + slot = face->glyph; + ft_glyphslot_clear( slot ); + + driver = face->driver; + + /* if the flag NO_RECURSE is set, we disable hinting and scaling */ + if ( load_flags & FT_LOAD_NO_RECURSE ) + { + /* disable scaling, hinting, and transformation */ + load_flags |= FT_LOAD_NO_SCALE | + FT_LOAD_NO_HINTING | + FT_LOAD_NO_BITMAP | + FT_LOAD_IGNORE_TRANSFORM; + + /* disable bitmap rendering */ + load_flags &= ~FT_LOAD_RENDER; + } + + /* do we need to load the glyph through the auto-hinter? */ + library = driver->root.library; + hinter = library->auto_hinter; + autohint = + FT_BOOL( hinter && + !( load_flags & ( FT_LOAD_NO_SCALE | + FT_LOAD_NO_HINTING | + FT_LOAD_NO_AUTOHINT ) ) && + FT_DRIVER_IS_SCALABLE( driver ) && + FT_DRIVER_USES_OUTLINES( driver ) ); + if ( autohint ) + { + if ( FT_DRIVER_HAS_HINTER( driver ) && + !( load_flags & FT_LOAD_FORCE_AUTOHINT ) ) + autohint = 0; + } + + /* don't apply autohinting if glyph is vertically distorted or */ + /* mirrored */ + if ( autohint && !( face->internal->transform_matrix.yy <= 0 || + face->internal->transform_matrix.yx != 0 ) ) + { + FT_AutoHinter_Service hinting; + + + /* try to load embedded bitmaps first if available */ + /* */ + /* XXX: This is really a temporary hack that should disappear */ + /* promptly with FreeType 2.1! */ + /* */ + if ( FT_HAS_FIXED_SIZES( face ) && + ( load_flags & FT_LOAD_NO_BITMAP ) == 0 ) + { + error = driver->clazz->load_glyph( slot, face->size, + glyph_index, + load_flags | FT_LOAD_SBITS_ONLY ); + + if ( !error && slot->format == FT_GLYPH_FORMAT_BITMAP ) + goto Load_Ok; + } + + /* load auto-hinted outline */ + hinting = (FT_AutoHinter_Service)hinter->clazz->module_interface; + + error = hinting->load_glyph( (FT_AutoHinter)hinter, + slot, face->size, + glyph_index, load_flags ); + } + else + { + error = driver->clazz->load_glyph( slot, + face->size, + glyph_index, + load_flags ); + if ( error ) + goto Exit; + + /* check that the loaded outline is correct */ + error = FT_Outline_Check( &slot->outline ); + if ( error ) + goto Exit; + } + + Load_Ok: + /* compute the advance */ + if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) + { + slot->advance.x = 0; + slot->advance.y = slot->metrics.vertAdvance; + } + else + { + slot->advance.x = slot->metrics.horiAdvance; + slot->advance.y = 0; + } + + /* compute the linear advance in 16.16 pixels */ + if ( ( load_flags & FT_LOAD_LINEAR_DESIGN ) == 0 && + ( face->face_flags & FT_FACE_FLAG_SCALABLE ) ) + { + FT_Size_Metrics* metrics = &face->size->metrics; + + + slot->linearHoriAdvance = FT_MulDiv( slot->linearHoriAdvance, + metrics->x_scale, 64 ); + + slot->linearVertAdvance = FT_MulDiv( slot->linearVertAdvance, + metrics->y_scale, 64 ); + } + + if ( ( load_flags & FT_LOAD_IGNORE_TRANSFORM ) == 0 ) + { + FT_Face_Internal internal = face->internal; + + + /* now, transform the glyph image if needed */ + if ( internal->transform_flags ) + { + /* get renderer */ + FT_Renderer renderer = ft_lookup_glyph_renderer( slot ); + + + if ( renderer ) + error = renderer->clazz->transform_glyph( + renderer, slot, + &internal->transform_matrix, + &internal->transform_delta ); + /* transform advance */ + FT_Vector_Transform( &slot->advance, &internal->transform_matrix ); + } + } + + /* do we need to render the image now? */ + if ( !error && + slot->format != FT_GLYPH_FORMAT_BITMAP && + slot->format != FT_GLYPH_FORMAT_COMPOSITE && + load_flags & FT_LOAD_RENDER ) + { + FT_Render_Mode mode = FT_LOAD_TARGET_MODE( load_flags ); + + + if ( mode == FT_RENDER_MODE_NORMAL && + (load_flags & FT_LOAD_MONOCHROME ) ) + mode = FT_RENDER_MODE_MONO; + + error = FT_Render_Glyph( slot, mode ); + } + + Exit: + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Load_Char( FT_Face face, + FT_ULong char_code, + FT_Int32 load_flags ) + { + FT_UInt glyph_index; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + glyph_index = (FT_UInt)char_code; + if ( face->charmap ) + glyph_index = FT_Get_Char_Index( face, char_code ); + + return FT_Load_Glyph( face, glyph_index, load_flags ); + } + + + /* destructor for sizes list */ + static void + destroy_size( FT_Memory memory, + FT_Size size, + FT_Driver driver ) + { + /* finalize client-specific data */ + if ( size->generic.finalizer ) + size->generic.finalizer( size ); + + /* finalize format-specific stuff */ + if ( driver->clazz->done_size ) + driver->clazz->done_size( size ); + + FT_FREE( size->internal ); + FT_FREE( size ); + } + + + static void + destroy_charmaps( FT_Face face, + FT_Memory memory ) + { + FT_Int n; + + + for ( n = 0; n < face->num_charmaps; n++ ) + { + FT_CMap cmap = FT_CMAP( face->charmaps[n] ); + + + FT_CMap_Done( cmap ); + + face->charmaps[n] = NULL; + } + + FT_FREE( face->charmaps ); + face->num_charmaps = 0; + } + + + /* destructor for faces list */ + static void + destroy_face( FT_Memory memory, + FT_Face face, + FT_Driver driver ) + { + FT_Driver_Class clazz = driver->clazz; + + + /* discard auto-hinting data */ + if ( face->autohint.finalizer ) + face->autohint.finalizer( face->autohint.data ); + + /* Discard glyph slots for this face. */ + /* Beware! FT_Done_GlyphSlot() changes the field `face->glyph' */ + while ( face->glyph ) + FT_Done_GlyphSlot( face->glyph ); + + /* discard all sizes for this face */ + FT_List_Finalize( &face->sizes_list, + (FT_List_Destructor)destroy_size, + memory, + driver ); + face->size = 0; + + /* now discard client data */ + if ( face->generic.finalizer ) + face->generic.finalizer( face ); + + /* discard charmaps */ + destroy_charmaps( face, memory ); + + /* finalize format-specific stuff */ + if ( clazz->done_face ) + clazz->done_face( face ); + + /* close the stream for this face if needed */ + FT_Stream_Free( + face->stream, + ( face->face_flags & FT_FACE_FLAG_EXTERNAL_STREAM ) != 0 ); + + face->stream = 0; + + /* get rid of it */ + if ( face->internal ) + { + FT_FREE( face->internal ); + } + FT_FREE( face ); + } + + + static void + Destroy_Driver( FT_Driver driver ) + { + FT_List_Finalize( &driver->faces_list, + (FT_List_Destructor)destroy_face, + driver->root.memory, + driver ); + + /* check whether we need to drop the driver's glyph loader */ + if ( FT_DRIVER_USES_OUTLINES( driver ) ) + FT_GlyphLoader_Done( driver->glyph_loader ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* find_unicode_charmap */ + /* */ + /* <Description> */ + /* This function finds a Unicode charmap, if there is one. */ + /* And if there is more than one, it tries to favour the more */ + /* extensive one, i.e., one that supports UCS-4 against those which */ + /* are limited to the BMP (said UCS-2 encoding.) */ + /* */ + /* This function is called from open_face() (just below), and also */ + /* from FT_Select_Charmap( ..., FT_ENCODING_UNICODE). */ + /* */ + static FT_Error + find_unicode_charmap( FT_Face face ) + { + FT_CharMap* first; + FT_CharMap* cur; + FT_CharMap* unicmap = NULL; /* some UCS-2 map, if we found it */ + + + /* caller should have already checked that `face' is valid */ + FT_ASSERT( face ); + + first = face->charmaps; + + if ( !first ) + return FT_Err_Invalid_CharMap_Handle; + + /* + * The original TrueType specification(s) only specified charmap + * formats that are capable of mapping 8 or 16 bit character codes to + * glyph indices. + * + * However, recent updates to the Apple and OpenType specifications + * introduced new formats that are capable of mapping 32-bit character + * codes as well. And these are already used on some fonts, mainly to + * map non-BMP Asian ideographs as defined in Unicode. + * + * For compatibility purposes, these fonts generally come with + * *several* Unicode charmaps: + * + * - One of them in the "old" 16-bit format, that cannot access + * all glyphs in the font. + * + * - Another one in the "new" 32-bit format, that can access all + * the glyphs. + * + * This function has been written to always favor a 32-bit charmap + * when found. Otherwise, a 16-bit one is returned when found. + */ + + /* since the `interesting' table, with id's 3,10, is normally the */ + /* last one, we loop backwards. This looses with type1 fonts with */ + /* non-BMP characters (<.0001%), this wins with .ttf with non-BMP */ + /* chars (.01% ?), and this is the same about 99.99% of the time! */ + + cur = first + face->num_charmaps; /* points after the last one */ + + for ( ; --cur >= first; ) + { + if ( cur[0]->encoding == FT_ENCODING_UNICODE ) + { + unicmap = cur; /* record we found a Unicode charmap */ + + /* XXX If some new encodings to represent UCS-4 are added, */ + /* they should be added here. */ + if ( ( cur[0]->platform_id == TT_PLATFORM_MICROSOFT && + cur[0]->encoding_id == TT_MS_ID_UCS_4 ) || + ( cur[0]->platform_id == TT_PLATFORM_APPLE_UNICODE && + cur[0]->encoding_id == TT_APPLE_ID_UNICODE_32 ) ) + + /* Hurray! We found a UCS-4 charmap. We can stop the scan! */ + { + face->charmap = cur[0]; + return 0; + } + } + } + + /* We do not have any UCS-4 charmap. Sigh. */ + /* Let's see if we have some other kind of Unicode charmap, though. */ + if ( unicmap != NULL ) + { + face->charmap = unicmap[0]; + return 0; + } + + /* Chou blanc! */ + return FT_Err_Invalid_CharMap_Handle; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* open_face */ + /* */ + /* <Description> */ + /* This function does some work for FT_Open_Face(). */ + /* */ + static FT_Error + open_face( FT_Driver driver, + FT_Stream stream, + FT_Long face_index, + FT_Int num_params, + FT_Parameter* params, + FT_Face *aface ) + { + FT_Memory memory; + FT_Driver_Class clazz; + FT_Face face = 0; + FT_Error error, error2; + FT_Face_Internal internal; + + + clazz = driver->clazz; + memory = driver->root.memory; + + /* allocate the face object and perform basic initialization */ + if ( FT_ALLOC( face, clazz->face_object_size ) ) + goto Fail; + + if ( FT_NEW( internal ) ) + goto Fail; + + face->internal = internal; + + face->driver = driver; + face->memory = memory; + face->stream = stream; + +#ifdef FT_CONFIG_OPTION_INCREMENTAL + { + int i; + + + face->internal->incremental_interface = 0; + for ( i = 0; i < num_params && !face->internal->incremental_interface; + i++ ) + if ( params[i].tag == FT_PARAM_TAG_INCREMENTAL ) + face->internal->incremental_interface = params[i].data; + } +#endif + + error = clazz->init_face( stream, + face, + (FT_Int)face_index, + num_params, + params ); + if ( error ) + goto Fail; + + /* select Unicode charmap by default */ + error2 = find_unicode_charmap( face ); + + /* if no Unicode charmap can be found, FT_Err_Invalid_CharMap_Handle */ + /* is returned. */ + + /* no error should happen, but we want to play safe */ + if ( error2 && error2 != FT_Err_Invalid_CharMap_Handle ) + { + error = error2; + goto Fail; + } + + *aface = face; + + Fail: + if ( error ) + { + destroy_charmaps( face, memory ); + clazz->done_face( face ); + FT_FREE( internal ); + FT_FREE( face ); + *aface = 0; + } + + return error; + } + + + /* there's a Mac-specific extended implementation of FT_New_Face() */ + /* in src/base/ftmac.c */ + +#ifndef FT_MACINTOSH + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_New_Face( FT_Library library, + const char* pathname, + FT_Long face_index, + FT_Face *aface ) + { + FT_Open_Args args; + + + /* test for valid `library' and `aface' delayed to FT_Open_Face() */ + if ( !pathname ) + return FT_Err_Invalid_Argument; + + args.flags = FT_OPEN_PATHNAME; + args.pathname = (char*)pathname; + + return FT_Open_Face( library, &args, face_index, aface ); + } + +#endif /* !FT_MACINTOSH */ + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_New_Memory_Face( FT_Library library, + const FT_Byte* file_base, + FT_Long file_size, + FT_Long face_index, + FT_Face *aface ) + { + FT_Open_Args args; + + + /* test for valid `library' and `face' delayed to FT_Open_Face() */ + if ( !file_base ) + return FT_Err_Invalid_Argument; + + args.flags = FT_OPEN_MEMORY; + args.memory_base = file_base; + args.memory_size = file_size; + + return FT_Open_Face( library, &args, face_index, aface ); + } + + +#if !defined( FT_MACINTOSH ) && defined( FT_CONFIG_OPTION_MAC_FONTS ) + + /* The behavior here is very similar to that in base/ftmac.c, but it */ + /* is designed to work on non-mac systems, so no mac specific calls. */ + /* */ + /* We look at the file and determine if it is a mac dfont file or a mac */ + /* resource file, or a macbinary file containing a mac resource file. */ + /* */ + /* Unlike ftmac I'm not going to look at a `FOND'. I don't really see */ + /* the point, especially since there may be multiple `FOND' resources. */ + /* Instead I'll just look for `sfnt' and `POST' resources, ordered as */ + /* they occur in the file. */ + /* */ + /* Note that multiple `POST' resources do not mean multiple postscript */ + /* fonts; they all get jammed together to make what is essentially a */ + /* pfb file. */ + /* */ + /* We aren't interested in `NFNT' or `FONT' bitmap resources. */ + /* */ + /* As soon as we get an `sfnt' load it into memory and pass it off to */ + /* FT_Open_Face. */ + /* */ + /* If we have a (set of) `POST' resources, massage them into a (memory) */ + /* pfb file and pass that to FT_Open_Face. (As with ftmac.c I'm not */ + /* going to try to save the kerning info. After all that lives in the */ + /* `FOND' which isn't in the file containing the `POST' resources so */ + /* we don't really have access to it. */ + + + /* Finalizer for a memory stream; gets called by FT_Done_Face(). + It frees the memory it uses. */ + /* from ftmac.c */ + static void + memory_stream_close( FT_Stream stream ) + { + FT_Memory memory = stream->memory; + + + FT_FREE( stream->base ); + + stream->size = 0; + stream->base = 0; + stream->close = 0; + } + + + /* Create a new memory stream from a buffer and a size. */ + /* from ftmac.c */ + static FT_Error + new_memory_stream( FT_Library library, + FT_Byte* base, + FT_ULong size, + FT_Stream_CloseFunc close, + FT_Stream *astream ) + { + FT_Error error; + FT_Memory memory; + FT_Stream stream; + + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( !base ) + return FT_Err_Invalid_Argument; + + *astream = 0; + memory = library->memory; + if ( FT_NEW( stream ) ) + goto Exit; + + FT_Stream_OpenMemory( stream, base, size ); + + stream->close = close; + + *astream = stream; + + Exit: + return error; + } + + + /* Create a new FT_Face given a buffer and a driver name. */ + /* from ftmac.c */ + static FT_Error + open_face_from_buffer( FT_Library library, + FT_Byte* base, + FT_ULong size, + FT_Long face_index, + const char* driver_name, + FT_Face *aface ) + { + FT_Open_Args args; + FT_Error error; + FT_Stream stream; + FT_Memory memory = library->memory; + + + error = new_memory_stream( library, + base, + size, + memory_stream_close, + &stream ); + if ( error ) + { + FT_FREE( base ); + return error; + } + + args.flags = FT_OPEN_STREAM; + args.stream = stream; + if ( driver_name ) + { + args.flags = args.flags | FT_OPEN_DRIVER; + args.driver = FT_Get_Module( library, driver_name ); + } + + error = FT_Open_Face( library, &args, face_index, aface ); + + if ( error == FT_Err_Ok ) + (*aface)->face_flags &= ~FT_FACE_FLAG_EXTERNAL_STREAM; + else + { + FT_Stream_Close( stream ); + FT_FREE( stream ); + } + + return error; + } + + + /* The resource header says we've got resource_cnt `POST' (type1) */ + /* resources in this file. They all need to be coalesced into */ + /* one lump which gets passed on to the type1 driver. */ + /* Here can be only one PostScript font in a file so face_index */ + /* must be 0 (or -1). */ + /* */ + static FT_Error + Mac_Read_POST_Resource( FT_Library library, + FT_Stream stream, + FT_Long *offsets, + FT_Long resource_cnt, + FT_Long face_index, + FT_Face *aface ) + { + FT_Error error = FT_Err_Cannot_Open_Resource; + FT_Memory memory = library->memory; + FT_Byte* pfb_data; + int i, type, flags; + FT_Long len; + FT_Long pfb_len, pfb_pos, pfb_lenpos; + FT_Long rlen, temp; + + + if ( face_index == -1 ) + face_index = 0; + if ( face_index != 0 ) + return error; + + /* Find the length of all the POST resources, concatenated. Assume */ + /* worst case (each resource in its own section). */ + pfb_len = 0; + for ( i = 0; i < resource_cnt; ++i ) + { + error = FT_Stream_Seek( stream, offsets[i] ); + if ( error ) + goto Exit; + if ( FT_READ_LONG( temp ) ) + goto Exit; + pfb_len += temp + 6; + } + + if ( FT_ALLOC( pfb_data, (FT_Long)pfb_len + 2 ) ) + goto Exit; + + pfb_data[0] = 0x80; + pfb_data[1] = 1; /* Ascii section */ + pfb_data[2] = 0; /* 4-byte length, fill in later */ + pfb_data[3] = 0; + pfb_data[4] = 0; + pfb_data[5] = 0; + pfb_pos = 7; + pfb_lenpos = 2; + + len = 0; + type = 1; + for ( i = 0; i < resource_cnt; ++i ) + { + error = FT_Stream_Seek( stream, offsets[i] ); + if ( error ) + goto Exit2; + if ( FT_READ_LONG( rlen ) ) + goto Exit; + if ( FT_READ_USHORT( flags ) ) + goto Exit; + rlen -= 2; /* the flags are part of the resource */ + if ( ( flags >> 8 ) == type ) + len += rlen; + else + { + pfb_data[pfb_lenpos ] = (FT_Byte)( len ); + pfb_data[pfb_lenpos + 1] = (FT_Byte)( len >> 8 ); + pfb_data[pfb_lenpos + 2] = (FT_Byte)( len >> 16 ); + pfb_data[pfb_lenpos + 3] = (FT_Byte)( len >> 24 ); + + if ( ( flags >> 8 ) == 5 ) /* End of font mark */ + break; + + pfb_data[pfb_pos++] = 0x80; + + type = flags >> 8; + len = rlen; + + pfb_data[pfb_pos++] = (FT_Byte)type; + pfb_lenpos = (FT_Byte)pfb_pos; + pfb_data[pfb_pos++] = 0; /* 4-byte length, fill in later */ + pfb_data[pfb_pos++] = 0; + pfb_data[pfb_pos++] = 0; + pfb_data[pfb_pos++] = 0; + } + + error = FT_Stream_Read( stream, (FT_Byte *)pfb_data + pfb_pos, rlen ); + pfb_pos += rlen; + } + + pfb_data[pfb_pos++] = 0x80; + pfb_data[pfb_pos++] = 3; + + pfb_data[pfb_lenpos ] = (FT_Byte)( len ); + pfb_data[pfb_lenpos + 1] = (FT_Byte)( len >> 8 ); + pfb_data[pfb_lenpos + 2] = (FT_Byte)( len >> 16 ); + pfb_data[pfb_lenpos + 3] = (FT_Byte)( len >> 24 ); + + return open_face_from_buffer( library, + pfb_data, + pfb_pos, + face_index, + "type1", + aface ); + + Exit2: + FT_FREE( pfb_data ); + + Exit: + return error; + } + + + /* The resource header says we've got resource_cnt `sfnt' */ + /* (TrueType/OpenType) resources in this file. Look through */ + /* them for the one indicated by face_index, load it into mem, */ + /* pass it on the the truetype driver and return it. */ + /* */ + static FT_Error + Mac_Read_sfnt_Resource( FT_Library library, + FT_Stream stream, + FT_Long *offsets, + FT_Long resource_cnt, + FT_Long face_index, + FT_Face *aface ) + { + FT_Memory memory = library->memory; + FT_Byte* sfnt_data; + FT_Error error; + FT_Long flag_offset; + FT_Long rlen; + int is_cff; + + + if ( face_index == -1 ) + face_index = 0; + if ( face_index >= resource_cnt ) + return FT_Err_Cannot_Open_Resource; + + flag_offset = offsets[face_index]; + error = FT_Stream_Seek( stream, flag_offset ); + if ( error ) + goto Exit; + + if ( FT_READ_LONG( rlen ) ) + goto Exit; + if ( rlen == -1 ) + return FT_Err_Cannot_Open_Resource; + + if ( FT_ALLOC( sfnt_data, (FT_Long)rlen ) ) + return error; + error = FT_Stream_Read( stream, (FT_Byte *)sfnt_data, rlen ); + if ( error ) + goto Exit; + + is_cff = rlen > 4 && sfnt_data[0] == 'O' && + sfnt_data[1] == 'T' && + sfnt_data[2] == 'T' && + sfnt_data[3] == 'O'; + + error = open_face_from_buffer( library, + sfnt_data, + rlen, + face_index, + is_cff ? "cff" : "truetype", + aface ); + + Exit: + return error; + } + + + /* Check for a valid resource fork header, or a valid dfont */ + /* header. In a resource fork the first 16 bytes are repeated */ + /* at the location specified by bytes 4-7. In a dfont bytes */ + /* 4-7 point to 16 bytes of zeroes instead. */ + /* */ + static FT_Error + IsMacResource( FT_Library library, + FT_Stream stream, + FT_Long resource_offset, + FT_Long face_index, + FT_Face *aface ) + { + FT_Memory memory = library->memory; + FT_Error error; + FT_Long map_offset, rdara_pos; + FT_Long *data_offsets; + FT_Long count; + + + error = FT_Raccess_Get_HeaderInfo( library, stream, resource_offset, + &map_offset, &rdara_pos ); + if ( error ) + return error; + + error = FT_Raccess_Get_DataOffsets( library, stream, + map_offset, rdara_pos, + FT_MAKE_TAG( 'P', 'O', 'S', 'T' ), + &data_offsets, &count ); + if ( !error ) + { + error = Mac_Read_POST_Resource( library, stream, data_offsets, count, + face_index, aface ); + FT_FREE( data_offsets ); + return error; + } + + error = FT_Raccess_Get_DataOffsets( library, stream, + map_offset, rdara_pos, + FT_MAKE_TAG( 's', 'f', 'n', 't' ), + &data_offsets, &count ); + if ( !error ) + { + error = Mac_Read_sfnt_Resource( library, stream, data_offsets, count, + face_index, aface ); + FT_FREE( data_offsets ); + } + + return error; + } + + + /* Check for a valid macbinary header, and if we find one */ + /* check that the (flattened) resource fork in it is valid. */ + /* */ + static FT_Error + IsMacBinary( FT_Library library, + FT_Stream stream, + FT_Long face_index, + FT_Face *aface ) + { + unsigned char header[128]; + FT_Error error; + FT_Long dlen, offset; + + + error = FT_Stream_Seek( stream, 0 ); + if ( error ) + goto Exit; + + error = FT_Stream_Read( stream, (FT_Byte*)header, 128 ); + if ( error ) + goto Exit; + + if ( header[ 0] != 0 || + header[74] != 0 || + header[82] != 0 || + header[ 1] == 0 || + header[ 1] > 33 || + header[63] != 0 || + header[2 + header[1]] != 0 ) + return FT_Err_Unknown_File_Format; + + dlen = ( header[0x53] << 24 ) | + ( header[0x54] << 16 ) | + ( header[0x55] << 8 ) | + header[0x56]; +#if 0 + rlen = ( header[0x57] << 24 ) | + ( header[0x58] << 16 ) | + ( header[0x59] << 8 ) | + header[0x5a]; +#endif /* 0 */ + offset = 128 + ( ( dlen + 127 ) & ~127 ); + + return IsMacResource( library, stream, offset, face_index, aface ); + + Exit: + return error; + } + + + static FT_Error + load_face_in_embedded_rfork( FT_Library library, + FT_Stream stream, + FT_Long face_index, + FT_Face *aface, + const FT_Open_Args *args ) + { + +#undef FT_COMPONENT +#define FT_COMPONENT trace_raccess + + FT_Memory memory = library->memory; + FT_Error error = FT_Err_Unknown_File_Format; + int i; + + char * file_names[FT_RACCESS_N_RULES]; + FT_Long offsets[FT_RACCESS_N_RULES]; + FT_Error errors[FT_RACCESS_N_RULES]; + + FT_Open_Args args2; + FT_Stream stream2; + + + FT_Raccess_Guess( library, stream, + args->pathname, file_names, offsets, errors ); + + for ( i = 0; i < FT_RACCESS_N_RULES; i++ ) + { + if ( errors[i] ) + { + FT_TRACE3(( "Error[%d] has occurred in rule %d\n", errors[i], i )); + continue; + } + + args2.flags = FT_OPEN_PATHNAME; + args2.pathname = file_names[i] ? file_names[i] : args->pathname; + + FT_TRACE3(( "Try rule %d: %s (offset=%d) ...", + i, args2.pathname, offsets[i] )); + + error = FT_Stream_New( library, &args2, &stream2 ); + if ( error ) + { + FT_TRACE3(( "failed\n" )); + continue; + } + + error = IsMacResource( library, stream2, offsets[i], + face_index, aface ); + FT_Stream_Close( stream2 ); + + FT_TRACE3(( "%s\n", error ? "failed": "successful" )); + + if ( !error ) + break; + } + + for (i = 0; i < FT_RACCESS_N_RULES; i++) + { + if ( file_names[i] ) + FT_FREE( file_names[i] ); + } + + /* Caller (load_mac_face) requires FT_Err_Unknown_File_Format. */ + if ( error ) + error = FT_Err_Unknown_File_Format; + + return error; + +#undef FT_COMPONENT +#define FT_COMPONENT trace_objs + + } + + + /* Check for some macintosh formats. */ + /* Is this a macbinary file? If so look at the resource fork. */ + /* Is this a mac dfont file? */ + /* Is this an old style resource fork? (in data) */ + /* Else call load_face_in_embedded_rfork to try extra rules */ + /* (defined in `ftrfork.c'). */ + /* */ + static FT_Error + load_mac_face( FT_Library library, + FT_Stream stream, + FT_Long face_index, + FT_Face *aface, + const FT_Open_Args *args ) + { + FT_Error error; + FT_UNUSED( args ); + + + error = IsMacBinary( library, stream, face_index, aface ); + if ( FT_ERROR_BASE( error ) == FT_Err_Unknown_File_Format ) + { + +#undef FT_COMPONENT +#define FT_COMPONENT trace_raccess + + FT_TRACE3(( "Try as dfont: %s ...", args->pathname )); + + error = IsMacResource( library, stream, 0, face_index, aface ); + + FT_TRACE3(( "%s\n", error ? "failed" : "successful" )); + +#undef FT_COMPONENT +#define FT_COMPONENT trace_objs + + } + + if ( ( FT_ERROR_BASE( error ) == FT_Err_Unknown_File_Format || + FT_ERROR_BASE( error ) == FT_Err_Invalid_Stream_Operation ) && + ( args->flags & FT_OPEN_PATHNAME ) ) + error = load_face_in_embedded_rfork( library, stream, + face_index, aface, args ); + return error; + } + +#endif /* !FT_MACINTOSH && FT_CONFIG_OPTION_MAC_FONTS */ + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Open_Face( FT_Library library, + const FT_Open_Args* args, + FT_Long face_index, + FT_Face *aface ) + { + FT_Error error; + FT_Driver driver; + FT_Memory memory; + FT_Stream stream; + FT_Face face = 0; + FT_ListNode node = 0; + FT_Bool external_stream; + + + /* test for valid `library' delayed to */ + /* FT_Stream_New() */ + + if ( !aface || !args ) + return FT_Err_Invalid_Argument; + + *aface = 0; + + external_stream = FT_BOOL( ( args->flags & FT_OPEN_STREAM ) && + args->stream ); + + /* create input stream */ + error = FT_Stream_New( library, args, &stream ); + if ( error ) + goto Exit; + + memory = library->memory; + + /* If the font driver is specified in the `args' structure, use */ + /* it. Otherwise, we scan the list of registered drivers. */ + if ( ( args->flags & FT_OPEN_DRIVER ) && args->driver ) + { + driver = FT_DRIVER( args->driver ); + + /* not all modules are drivers, so check... */ + if ( FT_MODULE_IS_DRIVER( driver ) ) + { + FT_Int num_params = 0; + FT_Parameter* params = 0; + + + if ( args->flags & FT_OPEN_PARAMS ) + { + num_params = args->num_params; + params = args->params; + } + + error = open_face( driver, stream, face_index, + num_params, params, &face ); + if ( !error ) + goto Success; + } + else + error = FT_Err_Invalid_Handle; + + FT_Stream_Free( stream, external_stream ); + goto Fail; + } + else + { + /* check each font driver for an appropriate format */ + FT_Module* cur = library->modules; + FT_Module* limit = cur + library->num_modules; + + + for ( ; cur < limit; cur++ ) + { + /* not all modules are font drivers, so check... */ + if ( FT_MODULE_IS_DRIVER( cur[0] ) ) + { + FT_Int num_params = 0; + FT_Parameter* params = 0; + + + driver = FT_DRIVER( cur[0] ); + + if ( args->flags & FT_OPEN_PARAMS ) + { + num_params = args->num_params; + params = args->params; + } + + error = open_face( driver, stream, face_index, + num_params, params, &face ); + if ( !error ) + goto Success; + + if ( FT_ERROR_BASE( error ) != FT_Err_Unknown_File_Format ) + goto Fail3; + } + } + + Fail3: + /* If we are on the mac, and we get an FT_Err_Invalid_Stream_Operation */ + /* it may be because we have an empty data fork, so we need to check */ + /* the resource fork. */ + if ( FT_ERROR_BASE( error ) != FT_Err_Unknown_File_Format && + FT_ERROR_BASE( error ) != FT_Err_Invalid_Stream_Operation ) + goto Fail2; + +#if !defined( FT_MACINTOSH ) && defined( FT_CONFIG_OPTION_MAC_FONTS ) + error = load_mac_face( library, stream, face_index, aface, args ); + if ( !error ) + { + /* We don't want to go to Success here. We've already done that. */ + /* On the other hand, if we succeeded we still need to close this */ + /* stream (we opened a different stream which extracted the */ + /* interesting information out of this stream here. That stream */ + /* will still be open and the face will point to it). */ + FT_Stream_Free( stream, external_stream ); + return error; + } + + if ( FT_ERROR_BASE( error ) != FT_Err_Unknown_File_Format ) + goto Fail2; +#endif /* !FT_MACINTOSH && FT_CONFIG_OPTION_MAC_FONTS */ + + /* no driver is able to handle this format */ + error = FT_Err_Unknown_File_Format; + + Fail2: + FT_Stream_Free( stream, external_stream ); + goto Fail; + } + + Success: + FT_TRACE4(( "FT_Open_Face: New face object, adding to list\n" )); + + /* set the FT_FACE_FLAG_EXTERNAL_STREAM bit for FT_Done_Face */ + if ( external_stream ) + face->face_flags |= FT_FACE_FLAG_EXTERNAL_STREAM; + + /* add the face object to its driver's list */ + if ( FT_NEW( node ) ) + goto Fail; + + node->data = face; + /* don't assume driver is the same as face->driver, so use */ + /* face->driver instead. */ + FT_List_Add( &face->driver->faces_list, node ); + + /* now allocate a glyph slot object for the face */ + { + FT_GlyphSlot slot; + + + FT_TRACE4(( "FT_Open_Face: Creating glyph slot\n" )); + + error = FT_New_GlyphSlot( face, &slot ); + if ( error ) + goto Fail; + + face->glyph = slot; + } + + /* finally, allocate a size object for the face */ + { + FT_Size size; + + + FT_TRACE4(( "FT_Open_Face: Creating size object\n" )); + + error = FT_New_Size( face, &size ); + if ( error ) + goto Fail; + + face->size = size; + } + + /* initialize internal face data */ + { + FT_Face_Internal internal = face->internal; + + + internal->transform_matrix.xx = 0x10000L; + internal->transform_matrix.xy = 0; + internal->transform_matrix.yx = 0; + internal->transform_matrix.yy = 0x10000L; + + internal->transform_delta.x = 0; + internal->transform_delta.y = 0; + } + + *aface = face; + goto Exit; + + Fail: + FT_Done_Face( face ); + + Exit: + FT_TRACE4(( "FT_Open_Face: Return %d\n", error )); + + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Attach_File( FT_Face face, + const char* filepathname ) + { + FT_Open_Args open; + + + /* test for valid `face' delayed to FT_Attach_Stream() */ + + if ( !filepathname ) + return FT_Err_Invalid_Argument; + + open.flags = FT_OPEN_PATHNAME; + open.pathname = (char*)filepathname; + + return FT_Attach_Stream( face, &open ); + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Attach_Stream( FT_Face face, + FT_Open_Args* parameters ) + { + FT_Stream stream; + FT_Error error; + FT_Driver driver; + + FT_Driver_Class clazz; + + + /* test for valid `parameters' delayed to FT_Stream_New() */ + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + driver = face->driver; + if ( !driver ) + return FT_Err_Invalid_Driver_Handle; + + error = FT_Stream_New( driver->root.library, parameters, &stream ); + if ( error ) + goto Exit; + + /* we implement FT_Attach_Stream in each driver through the */ + /* `attach_file' interface */ + + error = FT_Err_Unimplemented_Feature; + clazz = driver->clazz; + if ( clazz->attach_file ) + error = clazz->attach_file( face, stream ); + + /* close the attached stream */ + FT_Stream_Free( stream, + (FT_Bool)( parameters->stream && + ( parameters->flags & FT_OPEN_STREAM ) ) ); + + Exit: + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Done_Face( FT_Face face ) + { + FT_Error error; + FT_Driver driver; + FT_Memory memory; + FT_ListNode node; + + + error = FT_Err_Invalid_Face_Handle; + if ( face && face->driver ) + { + driver = face->driver; + memory = driver->root.memory; + + /* find face in driver's list */ + node = FT_List_Find( &driver->faces_list, face ); + if ( node ) + { + /* remove face object from the driver's list */ + FT_List_Remove( &driver->faces_list, node ); + FT_FREE( node ); + + /* now destroy the object proper */ + destroy_face( memory, face, driver ); + error = FT_Err_Ok; + } + } + return error; + } + + + /* documentation is in ftobjs.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_New_Size( FT_Face face, + FT_Size *asize ) + { + FT_Error error; + FT_Memory memory; + FT_Driver driver; + FT_Driver_Class clazz; + + FT_Size size = 0; + FT_ListNode node = 0; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + if ( !asize ) + return FT_Err_Invalid_Size_Handle; + + if ( !face->driver ) + return FT_Err_Invalid_Driver_Handle; + + *asize = 0; + + driver = face->driver; + clazz = driver->clazz; + memory = face->memory; + + /* Allocate new size object and perform basic initialisation */ + if ( FT_ALLOC( size, clazz->size_object_size ) || FT_NEW( node ) ) + goto Exit; + + size->face = face; + + /* for now, do not use any internal fields in size objects */ + size->internal = 0; + + if ( clazz->init_size ) + error = clazz->init_size( size ); + + /* in case of success, add to the face's list */ + if ( !error ) + { + *asize = size; + node->data = size; + FT_List_Add( &face->sizes_list, node ); + } + + Exit: + if ( error ) + { + FT_FREE( node ); + FT_FREE( size ); + } + + return error; + } + + + /* documentation is in ftobjs.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Done_Size( FT_Size size ) + { + FT_Error error; + FT_Driver driver; + FT_Memory memory; + FT_Face face; + FT_ListNode node; + + + if ( !size ) + return FT_Err_Invalid_Size_Handle; + + face = size->face; + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + driver = face->driver; + if ( !driver ) + return FT_Err_Invalid_Driver_Handle; + + memory = driver->root.memory; + + error = FT_Err_Ok; + node = FT_List_Find( &face->sizes_list, size ); + if ( node ) + { + FT_List_Remove( &face->sizes_list, node ); + FT_FREE( node ); + + if ( face->size == size ) + { + face->size = 0; + if ( face->sizes_list.head ) + face->size = (FT_Size)(face->sizes_list.head->data); + } + + destroy_size( memory, size, driver ); + } + else + error = FT_Err_Invalid_Size_Handle; + + return error; + } + + + static void + ft_recompute_scaled_metrics( FT_Face face, + FT_Size_Metrics* metrics ) + { + /* Compute root ascender, descender, test height, and max_advance */ + + metrics->ascender = FT_PIX_CEIL( FT_MulFix( face->ascender, + metrics->y_scale ) ); + + metrics->descender = FT_PIX_FLOOR( FT_MulFix( face->descender, + metrics->y_scale ) ); + + metrics->height = FT_PIX_ROUND( FT_MulFix( face->height, + metrics->y_scale ) ); + + metrics->max_advance = FT_PIX_ROUND( FT_MulFix( face->max_advance_width, + metrics->x_scale ) ); + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_Char_Size( FT_Face face, + FT_F26Dot6 char_width, + FT_F26Dot6 char_height, + FT_UInt horz_resolution, + FT_UInt vert_resolution ) + { + FT_Error error = FT_Err_Ok; + FT_Driver driver; + FT_Driver_Class clazz; + FT_Size_Metrics* metrics; + FT_Long dim_x, dim_y; + + + if ( !face || !face->size || !face->driver ) + return FT_Err_Invalid_Face_Handle; + + driver = face->driver; + metrics = &face->size->metrics; + clazz = driver->clazz; + + if ( !char_width ) + char_width = char_height; + + else if ( !char_height ) + char_height = char_width; + + if ( !horz_resolution ) + horz_resolution = 72; + + if ( !vert_resolution ) + vert_resolution = 72; + + /* default processing -- this can be overridden by the driver */ + if ( char_width < 1 * 64 ) + char_width = 1 * 64; + if ( char_height < 1 * 64 ) + char_height = 1 * 64; + + /* Compute pixel sizes in 26.6 units */ + dim_x = ( char_width * horz_resolution + 36 ) / 72; + dim_y = ( char_height * vert_resolution + 36 ) / 72; + + { + FT_UShort x_ppem = (FT_UShort)( ( dim_x + 32 ) >> 6 ); + FT_UShort y_ppem = (FT_UShort)( ( dim_y + 32 ) >> 6 ); + + if ( x_ppem == metrics->x_ppem && y_ppem == metrics->y_ppem ) + return FT_Err_Ok; + + metrics->x_ppem = x_ppem; + metrics->y_ppem = y_ppem; + } + + metrics->x_scale = 0x10000L; + metrics->y_scale = 0x10000L; + + if ( face->face_flags & FT_FACE_FLAG_SCALABLE ) + { + metrics->x_scale = FT_DivFix( dim_x, face->units_per_EM ); + metrics->y_scale = FT_DivFix( dim_y, face->units_per_EM ); + + ft_recompute_scaled_metrics( face, metrics ); + } + + if ( clazz->set_char_sizes ) + error = clazz->set_char_sizes( face->size, + char_width, + char_height, + horz_resolution, + vert_resolution ); + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_Pixel_Sizes( FT_Face face, + FT_UInt pixel_width, + FT_UInt pixel_height ) + { + FT_Error error = FT_Err_Ok; + FT_Driver driver; + FT_Driver_Class clazz; + FT_Size_Metrics* metrics; + + + if ( !face || !face->size || !face->driver ) + return FT_Err_Invalid_Face_Handle; + + driver = face->driver; + metrics = &face->size->metrics; + clazz = driver->clazz; + + if ( pixel_width == 0 ) + pixel_width = pixel_height; + + else if ( pixel_height == 0 ) + pixel_height = pixel_width; + + if ( pixel_width < 1 ) + pixel_width = 1; + if ( pixel_height < 1 ) + pixel_height = 1; + + /* use `>=' to avoid potention compiler warning on 16bit platforms */ + if ( pixel_width >= 0xFFFFU ) + pixel_width = 0xFFFFU; + if ( pixel_height >= 0xFFFFU ) + pixel_height = 0xFFFFU; + + metrics->x_ppem = (FT_UShort)pixel_width; + metrics->y_ppem = (FT_UShort)pixel_height; + + if ( face->face_flags & FT_FACE_FLAG_SCALABLE ) + { + metrics->x_scale = FT_DivFix( metrics->x_ppem << 6, + face->units_per_EM ); + + metrics->y_scale = FT_DivFix( metrics->y_ppem << 6, + face->units_per_EM ); + + ft_recompute_scaled_metrics( face, metrics ); + } + + if ( clazz->set_pixel_sizes ) + error = clazz->set_pixel_sizes( face->size, + pixel_width, + pixel_height ); + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Kerning( FT_Face face, + FT_UInt left_glyph, + FT_UInt right_glyph, + FT_UInt kern_mode, + FT_Vector *akerning ) + { + FT_Error error = FT_Err_Ok; + FT_Driver driver; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + if ( !akerning ) + return FT_Err_Invalid_Argument; + + driver = face->driver; + + akerning->x = 0; + akerning->y = 0; + + if ( driver->clazz->get_kerning ) + { + error = driver->clazz->get_kerning( face, + left_glyph, + right_glyph, + akerning ); + if ( !error ) + { + if ( kern_mode != FT_KERNING_UNSCALED ) + { + akerning->x = FT_MulFix( akerning->x, face->size->metrics.x_scale ); + akerning->y = FT_MulFix( akerning->y, face->size->metrics.y_scale ); + + if ( kern_mode != FT_KERNING_UNFITTED ) + { + akerning->x = FT_PIX_ROUND( akerning->x ); + akerning->y = FT_PIX_ROUND( akerning->y ); + } + } + } + } + + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Select_Charmap( FT_Face face, + FT_Encoding encoding ) + { + FT_CharMap* cur; + FT_CharMap* limit; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + /* FT_ENCODING_UNICODE is special. We try to find the `best' Unicode */ + /* charmap available, i.e., one with UCS-4 characters, if possible. */ + /* */ + /* This is done by find_unicode_charmap() above, to share code. */ + if ( encoding == FT_ENCODING_UNICODE ) + return find_unicode_charmap( face ); + + cur = face->charmaps; + if ( !cur ) + return FT_Err_Invalid_CharMap_Handle; + + limit = cur + face->num_charmaps; + + for ( ; cur < limit; cur++ ) + { + if ( cur[0]->encoding == encoding ) + { + face->charmap = cur[0]; + return 0; + } + } + + return FT_Err_Invalid_Argument; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_Charmap( FT_Face face, + FT_CharMap charmap ) + { + FT_CharMap* cur; + FT_CharMap* limit; + + + if ( !face ) + return FT_Err_Invalid_Face_Handle; + + cur = face->charmaps; + if ( !cur ) + return FT_Err_Invalid_CharMap_Handle; + + limit = cur + face->num_charmaps; + + for ( ; cur < limit; cur++ ) + { + if ( cur[0] == charmap ) + { + face->charmap = cur[0]; + return 0; + } + } + return FT_Err_Invalid_Argument; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Int ) + FT_Get_Charmap_Index( FT_CharMap charmap ) + { + FT_Int i; + + + for ( i = 0; i < charmap->face->num_charmaps; i++ ) + if ( charmap->face->charmaps[i] == charmap ) + break; + + FT_ASSERT( i < charmap->face->num_charmaps ); + + return i; + } + + + FT_BASE_DEF( void ) + FT_CMap_Done( FT_CMap cmap ) + { + if ( cmap ) + { + FT_CMap_Class clazz = cmap->clazz; + FT_Face face = cmap->charmap.face; + FT_Memory memory = FT_FACE_MEMORY(face); + + + if ( clazz->done ) + clazz->done( cmap ); + + FT_FREE( cmap ); + } + } + + + FT_BASE_DEF( FT_Error ) + FT_CMap_New( FT_CMap_Class clazz, + FT_Pointer init_data, + FT_CharMap charmap, + FT_CMap *acmap ) + { + FT_Error error = 0; + FT_Face face; + FT_Memory memory; + FT_CMap cmap; + + + if ( clazz == NULL || charmap == NULL || charmap->face == NULL ) + return FT_Err_Invalid_Argument; + + face = charmap->face; + memory = FT_FACE_MEMORY( face ); + + if ( !FT_ALLOC( cmap, clazz->size ) ) + { + cmap->charmap = *charmap; + cmap->clazz = clazz; + + if ( clazz->init ) + { + error = clazz->init( cmap, init_data ); + if ( error ) + goto Fail; + } + + /* add it to our list of charmaps */ + if ( FT_RENEW_ARRAY( face->charmaps, + face->num_charmaps, + face->num_charmaps+1 ) ) + goto Fail; + + face->charmaps[face->num_charmaps++] = (FT_CharMap)cmap; + } + + Exit: + if ( acmap ) + *acmap = cmap; + + return error; + + Fail: + FT_CMap_Done( cmap ); + cmap = NULL; + goto Exit; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UInt ) + FT_Get_Char_Index( FT_Face face, + FT_ULong charcode ) + { + FT_UInt result = 0; + + + if ( face && face->charmap ) + { + FT_CMap cmap = FT_CMAP( face->charmap ); + + + result = cmap->clazz->char_index( cmap, charcode ); + } + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_ULong ) + FT_Get_First_Char( FT_Face face, + FT_UInt *agindex ) + { + FT_ULong result = 0; + FT_UInt gindex = 0; + + + if ( face && face->charmap ) + { + gindex = FT_Get_Char_Index( face, 0 ); + if ( gindex == 0 ) + result = FT_Get_Next_Char( face, 0, &gindex ); + } + + if ( agindex ) + *agindex = gindex; + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_ULong ) + FT_Get_Next_Char( FT_Face face, + FT_ULong charcode, + FT_UInt *agindex ) + { + FT_ULong result = 0; + FT_UInt gindex = 0; + + + if ( face && face->charmap ) + { + FT_UInt32 code = (FT_UInt32)charcode; + FT_CMap cmap = FT_CMAP( face->charmap ); + + + gindex = cmap->clazz->char_next( cmap, &code ); + result = ( gindex == 0 ) ? 0 : code; + } + + if ( agindex ) + *agindex = gindex; + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UInt ) + FT_Get_Name_Index( FT_Face face, + FT_String* glyph_name ) + { + FT_UInt result = 0; + + + if ( face && FT_HAS_GLYPH_NAMES( face ) ) + { + FT_Service_GlyphDict service; + + + FT_FACE_LOOKUP_SERVICE( face, + service, + GLYPH_DICT ); + + if ( service && service->name_index ) + result = service->name_index( face, glyph_name ); + } + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_Glyph_Name( FT_Face face, + FT_UInt glyph_index, + FT_Pointer buffer, + FT_UInt buffer_max ) + { + FT_Error error = FT_Err_Invalid_Argument; + + + /* clean up buffer */ + if ( buffer && buffer_max > 0 ) + ((FT_Byte*)buffer)[0] = 0; + + if ( face && + glyph_index <= (FT_UInt)face->num_glyphs && + FT_HAS_GLYPH_NAMES( face ) ) + { + FT_Service_GlyphDict service; + + + FT_FACE_LOOKUP_SERVICE( face, + service, + GLYPH_DICT ); + + if ( service && service->get_name ) + error = service->get_name( face, glyph_index, buffer, buffer_max ); + } + + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( const char* ) + FT_Get_Postscript_Name( FT_Face face ) + { + const char* result = NULL; + + + if ( !face ) + goto Exit; + + if ( !result ) + { + FT_Service_PsFontName service; + + + FT_FACE_LOOKUP_SERVICE( face, + service, + POSTSCRIPT_FONT_NAME ); + + if ( service && service->get_ps_font_name ) + result = service->get_ps_font_name( face ); + } + + Exit: + return result; + } + + + /* documentation is in tttables.h */ + + FT_EXPORT_DEF( void* ) + FT_Get_Sfnt_Table( FT_Face face, + FT_Sfnt_Tag tag ) + { + void* table = 0; + FT_Service_SFNT_Table service; + + + if ( face && FT_IS_SFNT( face ) ) + { + FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE ); + if ( service != NULL ) + table = service->get_table( face, tag ); + } + + return table; + } + + + /* documentation is in tttables.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Load_Sfnt_Table( FT_Face face, + FT_ULong tag, + FT_Long offset, + FT_Byte* buffer, + FT_ULong* length ) + { + FT_Service_SFNT_Table service; + + + if ( !face || !FT_IS_SFNT( face ) ) + return FT_Err_Invalid_Face_Handle; + + FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE ); + if ( service == NULL ) + return FT_Err_Unimplemented_Feature; + + return service->load_table( face, tag, offset, buffer, length ); + } + + + FT_EXPORT_DEF( FT_ULong ) + FT_Get_CMap_Language_ID( FT_CharMap charmap ) + { + FT_Service_TTCMaps service; + FT_Face face; + TT_CMapInfo cmap_info; + + + if ( !charmap || !charmap->face ) + return 0; + + face = charmap->face; + FT_FACE_FIND_SERVICE( face, service, TT_CMAP ); + if ( service == NULL ) + return 0; + if ( service->get_cmap_info( charmap, &cmap_info )) + return 0; + + return cmap_info.language; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Activate_Size( FT_Size size ) + { + FT_Face face; + + + if ( size == NULL ) + return FT_Err_Bad_Argument; + + face = size->face; + if ( face == NULL || face->driver == NULL ) + return FT_Err_Bad_Argument; + + /* we don't need anything more complex than that; all size objects */ + /* are already listed by the face */ + face->size = size; + + return FT_Err_Ok; + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** R E N D E R E R S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + /* lookup a renderer by glyph format in the library's list */ + FT_BASE_DEF( FT_Renderer ) + FT_Lookup_Renderer( FT_Library library, + FT_Glyph_Format format, + FT_ListNode* node ) + { + FT_ListNode cur; + FT_Renderer result = 0; + + + if ( !library ) + goto Exit; + + cur = library->renderers.head; + + if ( node ) + { + if ( *node ) + cur = (*node)->next; + *node = 0; + } + + while ( cur ) + { + FT_Renderer renderer = FT_RENDERER( cur->data ); + + + if ( renderer->glyph_format == format ) + { + if ( node ) + *node = cur; + + result = renderer; + break; + } + cur = cur->next; + } + + Exit: + return result; + } + + + static FT_Renderer + ft_lookup_glyph_renderer( FT_GlyphSlot slot ) + { + FT_Face face = slot->face; + FT_Library library = FT_FACE_LIBRARY( face ); + FT_Renderer result = library->cur_renderer; + + + if ( !result || result->glyph_format != slot->format ) + result = FT_Lookup_Renderer( library, slot->format, 0 ); + + return result; + } + + + static void + ft_set_current_renderer( FT_Library library ) + { + FT_Renderer renderer; + + + renderer = FT_Lookup_Renderer( library, FT_GLYPH_FORMAT_OUTLINE, 0 ); + library->cur_renderer = renderer; + } + + + static FT_Error + ft_add_renderer( FT_Module module ) + { + FT_Library library = module->library; + FT_Memory memory = library->memory; + FT_Error error; + FT_ListNode node; + + + if ( FT_NEW( node ) ) + goto Exit; + + { + FT_Renderer render = FT_RENDERER( module ); + FT_Renderer_Class* clazz = (FT_Renderer_Class*)module->clazz; + + + render->clazz = clazz; + render->glyph_format = clazz->glyph_format; + + /* allocate raster object if needed */ + if ( clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE && + clazz->raster_class->raster_new ) + { + error = clazz->raster_class->raster_new( memory, &render->raster ); + if ( error ) + goto Fail; + + render->raster_render = clazz->raster_class->raster_render; + render->render = clazz->render_glyph; + } + + /* add to list */ + node->data = module; + FT_List_Add( &library->renderers, node ); + + ft_set_current_renderer( library ); + } + + Fail: + if ( error ) + FT_FREE( node ); + + Exit: + return error; + } + + + static void + ft_remove_renderer( FT_Module module ) + { + FT_Library library = module->library; + FT_Memory memory = library->memory; + FT_ListNode node; + + + node = FT_List_Find( &library->renderers, module ); + if ( node ) + { + FT_Renderer render = FT_RENDERER( module ); + + + /* release raster object, if any */ + if ( render->raster ) + render->clazz->raster_class->raster_done( render->raster ); + + /* remove from list */ + FT_List_Remove( &library->renderers, node ); + FT_FREE( node ); + + ft_set_current_renderer( library ); + } + } + + + /* documentation is in ftrender.h */ + + FT_EXPORT_DEF( FT_Renderer ) + FT_Get_Renderer( FT_Library library, + FT_Glyph_Format format ) + { + /* test for valid `library' delayed to FT_Lookup_Renderer() */ + + return FT_Lookup_Renderer( library, format, 0 ); + } + + + /* documentation is in ftrender.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Set_Renderer( FT_Library library, + FT_Renderer renderer, + FT_UInt num_params, + FT_Parameter* parameters ) + { + FT_ListNode node; + FT_Error error = FT_Err_Ok; + + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( !renderer ) + return FT_Err_Invalid_Argument; + + node = FT_List_Find( &library->renderers, renderer ); + if ( !node ) + { + error = FT_Err_Invalid_Argument; + goto Exit; + } + + FT_List_Up( &library->renderers, node ); + + if ( renderer->glyph_format == FT_GLYPH_FORMAT_OUTLINE ) + library->cur_renderer = renderer; + + if ( num_params > 0 ) + { + FT_Renderer_SetModeFunc set_mode = renderer->clazz->set_mode; + + + for ( ; num_params > 0; num_params-- ) + { + error = set_mode( renderer, parameters->tag, parameters->data ); + if ( error ) + break; + } + } + + Exit: + return error; + } + + + FT_BASE_DEF( FT_Error ) + FT_Render_Glyph_Internal( FT_Library library, + FT_GlyphSlot slot, + FT_Render_Mode render_mode ) + { + FT_Error error = FT_Err_Ok; + FT_Renderer renderer; + + + /* if it is already a bitmap, no need to do anything */ + switch ( slot->format ) + { + case FT_GLYPH_FORMAT_BITMAP: /* already a bitmap, don't do anything */ + break; + + default: + { + FT_ListNode node = 0; + FT_Bool update = 0; + + + /* small shortcut for the very common case */ + if ( slot->format == FT_GLYPH_FORMAT_OUTLINE ) + { + renderer = library->cur_renderer; + node = library->renderers.head; + } + else + renderer = FT_Lookup_Renderer( library, slot->format, &node ); + + error = FT_Err_Unimplemented_Feature; + while ( renderer ) + { + error = renderer->render( renderer, slot, render_mode, NULL ); + 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, slot->format, &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 freetype.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Render_Glyph( FT_GlyphSlot slot, + FT_Render_Mode render_mode ) + { + FT_Library library; + + + if ( !slot ) + return FT_Err_Invalid_Argument; + + library = FT_FACE_LIBRARY( slot->face ); + + return FT_Render_Glyph_Internal( library, slot, render_mode ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** M O D U L E S ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* Destroy_Module */ + /* */ + /* <Description> */ + /* Destroys a given module object. For drivers, this also destroys */ + /* all child faces. */ + /* */ + /* <InOut> */ + /* module :: A handle to the target driver object. */ + /* */ + /* <Note> */ + /* The driver _must_ be LOCKED! */ + /* */ + static void + Destroy_Module( FT_Module module ) + { + FT_Memory memory = module->memory; + FT_Module_Class* clazz = module->clazz; + FT_Library library = module->library; + + + /* finalize client-data - before anything else */ + if ( module->generic.finalizer ) + module->generic.finalizer( module ); + + if ( library && library->auto_hinter == module ) + library->auto_hinter = 0; + + /* if the module is a renderer */ + if ( FT_MODULE_IS_RENDERER( module ) ) + ft_remove_renderer( module ); + + /* if the module is a font driver, add some steps */ + if ( FT_MODULE_IS_DRIVER( module ) ) + Destroy_Driver( FT_DRIVER( module ) ); + + /* finalize the module object */ + if ( clazz->module_done ) + clazz->module_done( module ); + + /* discard it */ + FT_FREE( module ); + } + + + /* documentation is in ftmodule.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Add_Module( FT_Library library, + const FT_Module_Class* clazz ) + { + FT_Error error; + FT_Memory memory; + FT_Module module; + FT_UInt nn; + + +#define FREETYPE_VER_FIXED ( ( (FT_Long)FREETYPE_MAJOR << 16 ) | \ + FREETYPE_MINOR ) + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( !clazz ) + return FT_Err_Invalid_Argument; + + /* check freetype version */ + if ( clazz->module_requires > FREETYPE_VER_FIXED ) + return FT_Err_Invalid_Version; + + /* look for a module with the same name in the library's table */ + for ( nn = 0; nn < library->num_modules; nn++ ) + { + module = library->modules[nn]; + if ( ft_strcmp( module->clazz->module_name, clazz->module_name ) == 0 ) + { + /* this installed module has the same name, compare their versions */ + if ( clazz->module_version <= module->clazz->module_version ) + return FT_Err_Lower_Module_Version; + + /* remove the module from our list, then exit the loop to replace */ + /* it by our new version.. */ + FT_Remove_Module( library, module ); + break; + } + } + + memory = library->memory; + error = FT_Err_Ok; + + if ( library->num_modules >= FT_MAX_MODULES ) + { + error = FT_Err_Too_Many_Drivers; + goto Exit; + } + + /* allocate module object */ + if ( FT_ALLOC( module, clazz->module_size ) ) + goto Exit; + + /* base initialization */ + module->library = library; + module->memory = memory; + module->clazz = (FT_Module_Class*)clazz; + + /* check whether the module is a renderer - this must be performed */ + /* before the normal module initialization */ + if ( FT_MODULE_IS_RENDERER( module ) ) + { + /* add to the renderers list */ + error = ft_add_renderer( module ); + if ( error ) + goto Fail; + } + + /* is the module a auto-hinter? */ + if ( FT_MODULE_IS_HINTER( module ) ) + library->auto_hinter = module; + + /* if the module is a font driver */ + if ( FT_MODULE_IS_DRIVER( module ) ) + { + /* allocate glyph loader if needed */ + FT_Driver driver = FT_DRIVER( module ); + + + driver->clazz = (FT_Driver_Class)module->clazz; + if ( FT_DRIVER_USES_OUTLINES( driver ) ) + { + error = FT_GlyphLoader_New( memory, &driver->glyph_loader ); + if ( error ) + goto Fail; + } + } + + if ( clazz->module_init ) + { + error = clazz->module_init( module ); + if ( error ) + goto Fail; + } + + /* add module to the library's table */ + library->modules[library->num_modules++] = module; + + Exit: + return error; + + Fail: + if ( FT_MODULE_IS_DRIVER( module ) ) + { + FT_Driver driver = FT_DRIVER( module ); + + + if ( FT_DRIVER_USES_OUTLINES( driver ) ) + FT_GlyphLoader_Done( driver->glyph_loader ); + } + + if ( FT_MODULE_IS_RENDERER( module ) ) + { + FT_Renderer renderer = FT_RENDERER( module ); + + + if ( renderer->raster ) + renderer->clazz->raster_class->raster_done( renderer->raster ); + } + + FT_FREE( module ); + goto Exit; + } + + + /* documentation is in ftmodule.h */ + + FT_EXPORT_DEF( FT_Module ) + FT_Get_Module( FT_Library library, + const char* module_name ) + { + FT_Module result = 0; + FT_Module* cur; + FT_Module* limit; + + + if ( !library || !module_name ) + return result; + + cur = library->modules; + limit = cur + library->num_modules; + + for ( ; cur < limit; cur++ ) + if ( ft_strcmp( cur[0]->clazz->module_name, module_name ) == 0 ) + { + result = cur[0]; + break; + } + + return result; + } + + + /* documentation is in ftobjs.h */ + + FT_BASE_DEF( const void* ) + FT_Get_Module_Interface( FT_Library library, + const char* mod_name ) + { + FT_Module module; + + + /* test for valid `library' delayed to FT_Get_Module() */ + + module = FT_Get_Module( library, mod_name ); + + return module ? module->clazz->module_interface : 0; + } + + + FT_BASE_DEF( FT_Pointer ) + ft_module_get_service( FT_Module module, + const char* service_id ) + { + FT_Pointer result = NULL; + + if ( module ) + { + FT_ASSERT( module->clazz && module->clazz->get_interface ); + + /* first, look for the service in the module + */ + if ( module->clazz->get_interface ) + result = module->clazz->get_interface( module, service_id ); + + if ( result == NULL ) + { + /* we didn't find it, look in all other modules then + */ + FT_Library library = module->library; + FT_Module* cur = library->modules; + FT_Module* limit = cur + library->num_modules; + + for ( ; cur < limit; cur++ ) + { + if ( cur[0] != module ) + { + FT_ASSERT( cur[0]->clazz ); + + if ( cur[0]->clazz->get_interface ) + { + result = cur[0]->clazz->get_interface( cur[0], service_id ); + if ( result != NULL ) + break; + } + } + } + } + } + + return result; + } + + + /* documentation is in ftmodule.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Remove_Module( FT_Library library, + FT_Module module ) + { + /* try to find the module from the table, then remove it from there */ + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + if ( module ) + { + FT_Module* cur = library->modules; + FT_Module* limit = cur + library->num_modules; + + + for ( ; cur < limit; cur++ ) + { + if ( cur[0] == module ) + { + /* remove it from the table */ + library->num_modules--; + limit--; + while ( cur < limit ) + { + cur[0] = cur[1]; + cur++; + } + limit[0] = 0; + + /* destroy the module */ + Destroy_Module( module ); + + return FT_Err_Ok; + } + } + } + return FT_Err_Invalid_Driver_Handle; + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** L I B R A R Y ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + + /* documentation is in ftmodule.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_New_Library( FT_Memory memory, + FT_Library *alibrary ) + { + FT_Library library = 0; + FT_Error error; + + + if ( !memory ) + return FT_Err_Invalid_Argument; + +#ifdef FT_DEBUG_LEVEL_ERROR + /* init debugging support */ + ft_debug_init(); +#endif + + /* first of all, allocate the library object */ + if ( FT_NEW( library ) ) + return error; + + library->memory = memory; + + /* allocate the render pool */ + library->raster_pool_size = FT_RENDER_POOL_SIZE; + if ( FT_ALLOC( library->raster_pool, FT_RENDER_POOL_SIZE ) ) + goto Fail; + + /* That's ok now */ + *alibrary = library; + + return FT_Err_Ok; + + Fail: + FT_FREE( library ); + return error; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( void ) + FT_Library_Version( FT_Library library, + FT_Int *amajor, + FT_Int *aminor, + FT_Int *apatch ) + { + FT_Int major = 0; + FT_Int minor = 0; + FT_Int patch = 0; + + + if ( library ) + { + major = library->version_major; + minor = library->version_minor; + patch = library->version_patch; + } + + if ( amajor ) + *amajor = major; + + if ( aminor ) + *aminor = minor; + + if ( apatch ) + *apatch = patch; + } + + + /* documentation is in ftmodule.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Done_Library( FT_Library library ) + { + FT_Memory memory; + + + if ( !library ) + return FT_Err_Invalid_Library_Handle; + + memory = library->memory; + + /* Discard client-data */ + if ( library->generic.finalizer ) + library->generic.finalizer( library ); + + /* Close all modules in the library */ +#if 1 + while ( library->num_modules > 0 ) + FT_Remove_Module( library, library->modules[0] ); +#else + { + FT_UInt n; + + + for ( n = 0; n < library->num_modules; n++ ) + { + FT_Module module = library->modules[n]; + + + if ( module ) + { + Destroy_Module( module ); + library->modules[n] = 0; + } + } + } +#endif + + /* Destroy raster objects */ + FT_FREE( library->raster_pool ); + library->raster_pool_size = 0; + + FT_FREE( library ); + return FT_Err_Ok; + } + + + /* documentation is in ftmodule.h */ + + FT_EXPORT_DEF( void ) + FT_Set_Debug_Hook( FT_Library library, + FT_UInt hook_index, + FT_DebugHook_Func debug_hook ) + { + if ( library && debug_hook && + hook_index < + ( sizeof ( library->debug_hooks ) / sizeof ( void* ) ) ) + library->debug_hooks[hook_index] = debug_hook; + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftoutln.c b/nx-X11/extras/freetype2/src/base/ftoutln.c new file mode 100644 index 000000000..5cae931f6 --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftoutln.c @@ -0,0 +1,795 @@ +/***************************************************************************/ +/* */ +/* 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, ¶ms ); + } + + + /* 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 */ diff --git a/nx-X11/extras/freetype2/src/base/ftpfr.c b/nx-X11/extras/freetype2/src/base/ftpfr.c new file mode 100644 index 000000000..fb959e37f --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftpfr.c @@ -0,0 +1,126 @@ +/***************************************************************************/ +/* */ +/* ftpfr.c */ +/* */ +/* FreeType API for accessing PFR-specific data (body). */ +/* */ +/* Copyright 2002, 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_PFR_H + + + /* check the format */ + static FT_Service_PfrMetrics + ft_pfr_check( FT_Face face ) + { + FT_Service_PfrMetrics service; + + + FT_FACE_LOOKUP_SERVICE( face, service, PFR_METRICS ); + + return service; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Get_PFR_Metrics( FT_Face face, + FT_UInt *aoutline_resolution, + FT_UInt *ametrics_resolution, + FT_Fixed *ametrics_x_scale, + FT_Fixed *ametrics_y_scale ) + { + FT_Error error = FT_Err_Ok; + FT_Service_PfrMetrics service; + + + service = ft_pfr_check( face ); + if ( service ) + { + error = service->get_metrics( face, + aoutline_resolution, + ametrics_resolution, + ametrics_x_scale, + ametrics_y_scale ); + } + else if ( face ) + { + FT_Fixed x_scale, y_scale; + + + /* this is not a PFR font */ + *aoutline_resolution = face->units_per_EM; + *ametrics_resolution = face->units_per_EM; + + x_scale = y_scale = 0x10000L; + if ( face->size ) + { + x_scale = face->size->metrics.x_scale; + y_scale = face->size->metrics.y_scale; + } + *ametrics_x_scale = x_scale; + *ametrics_y_scale = y_scale; + } + else + error = FT_Err_Invalid_Argument; + + return error; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Get_PFR_Kerning( FT_Face face, + FT_UInt left, + FT_UInt right, + FT_Vector *avector ) + { + FT_Error error; + FT_Service_PfrMetrics service; + + + service = ft_pfr_check( face ); + if ( service ) + error = service->get_kerning( face, left, right, avector ); + else if ( face ) + error = FT_Get_Kerning( face, left, right, + FT_KERNING_UNSCALED, avector ); + else + error = FT_Err_Invalid_Argument; + + return error; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Get_PFR_Advance( FT_Face face, + FT_UInt gindex, + FT_Pos *aadvance ) + { + FT_Error error; + FT_Service_PfrMetrics service; + + + service = ft_pfr_check( face ); + if ( service ) + { + error = service->get_advance( face, gindex, aadvance ); + } + else + /* XXX: TODO: PROVIDE ADVANCE-LOADING METHOD TO ALL FONT DRIVERS */ + error = FT_Err_Invalid_Argument; + + return error; + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftrfork.c b/nx-X11/extras/freetype2/src/base/ftrfork.c new file mode 100644 index 000000000..cf790ccc0 --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftrfork.c @@ -0,0 +1,717 @@ +/***************************************************************************/ +/* */ +/* ftrfork.c */ +/* */ +/* Embedded resource forks accessor (body). */ +/* */ +/* Copyright 2004 by */ +/* Masatake YAMATO and Redhat K.K. */ +/* */ +/* FT_Raccess_Get_HeaderInfo() and raccess_guess_darwin_hfsplus() are */ +/* derived from ftobjs.c. */ +/* */ +/* 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. */ +/* */ +/***************************************************************************/ + +/***************************************************************************/ +/* Development of the code in this file is support of */ +/* Information-technology Promotion Agency, Japan. */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_RFORK_H + + +#undef FT_COMPONENT +#define FT_COMPONENT trace_raccess + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** Resource fork directory access ****/ + /**** ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + FT_BASE_DEF( FT_Error ) + FT_Raccess_Get_HeaderInfo( FT_Library library, + FT_Stream stream, + FT_Long rfork_offset, + FT_Long *map_offset, + FT_Long *rdata_pos ) + { + FT_Error error; + unsigned char head[16], head2[16]; + FT_Long map_pos, rdata_len; + int allzeros, allmatch, i; + FT_Long type_list; + + FT_UNUSED( library ); + + + error = FT_Stream_Seek( stream, rfork_offset ); + if ( error ) + return error; + + error = FT_Stream_Read( stream, (FT_Byte *)head, 16 ); + if ( error ) + return error; + + *rdata_pos = rfork_offset + ( ( head[0] << 24 ) | + ( head[1] << 16 ) | + ( head[2] << 8 ) | + head[3] ); + map_pos = rfork_offset + ( ( head[4] << 24 ) | + ( head[5] << 16 ) | + ( head[6] << 8 ) | + head[7] ); + rdata_len = ( head[ 8] << 24 ) | + ( head[ 9] << 16 ) | + ( head[10] << 8 ) | + head[11]; + + /* map_len = head[12] .. head[15] */ + + if ( *rdata_pos + rdata_len != map_pos || map_pos == rfork_offset ) + return FT_Err_Unknown_File_Format; + + error = FT_Stream_Seek( stream, map_pos ); + if ( error ) + return error; + + head2[15] = (FT_Byte)( head[15] + 1 ); /* make it be different */ + + error = FT_Stream_Read( stream, (FT_Byte*)head2, 16 ); + if ( error ) + return error; + + allzeros = 1; + allmatch = 1; + for ( i = 0; i < 16; ++i ) + { + if ( head2[i] != 0 ) + allzeros = 0; + if ( head2[i] != head[i] ) + allmatch = 0; + } + if ( !allzeros && !allmatch ) + return FT_Err_Unknown_File_Format; + + /* If we have reached this point then it is probably a mac resource */ + /* file. Now, does it contain any interesting resources? */ + /* Skip handle to next resource map, the file resource number, and */ + /* attributes. */ + (void)FT_STREAM_SKIP( 4 /* skip handle to next resource map */ + + 2 /* skip file resource number */ + + 2 ); /* skip attributes */ + + if ( FT_READ_USHORT( type_list ) ) + return error; + if ( type_list == -1 ) + return FT_Err_Unknown_File_Format; + + error = FT_Stream_Seek( stream, map_pos + type_list ); + if ( error ) + return error; + + *map_offset = map_pos + type_list; + return FT_Err_Ok; + } + + + FT_BASE_DEF( FT_Error ) + FT_Raccess_Get_DataOffsets( FT_Library library, + FT_Stream stream, + FT_Long map_offset, + FT_Long rdata_pos, + FT_Long tag, + FT_Long **offsets, + FT_Long *count ) + { + FT_Error error; + int i, j, cnt, subcnt; + FT_Long tag_internal, rpos; + FT_Memory memory = library->memory; + FT_Long temp; + FT_Long *offsets_internal; + + + error = FT_Stream_Seek( stream, map_offset ); + if ( error ) + return error; + + if ( FT_READ_USHORT( cnt ) ) + return error; + cnt++; + + for ( i = 0; i < cnt; ++i ) + { + if ( FT_READ_LONG( tag_internal ) || + FT_READ_USHORT( subcnt ) || + FT_READ_USHORT( rpos ) ) + return error; + + FT_TRACE2(( "Resource tags: %c%c%c%c\n", + (char)( 0xff & ( tag_internal >> 24 ) ), + (char)( 0xff & ( tag_internal >> 16 ) ), + (char)( 0xff & ( tag_internal >> 8 ) ), + (char)( 0xff & ( tag_internal >> 0 ) ) )); + + if ( tag_internal == tag ) + { + *count = subcnt + 1; + rpos += map_offset; + + error = FT_Stream_Seek( stream, rpos ); + if ( error ) + return error; + + if ( FT_ALLOC( offsets_internal, *count * sizeof( FT_Long ) ) ) + return error; + + for ( j = 0; j < *count; ++j ) + { + (void)FT_STREAM_SKIP( 2 ); /* resource id */ + (void)FT_STREAM_SKIP( 2 ); /* rsource name */ + + if ( FT_READ_LONG( temp ) ) + { + FT_FREE( offsets_internal ); + return error; + } + + offsets_internal[j] = rdata_pos + ( temp & 0xFFFFFFL ); + + (void)FT_STREAM_SKIP( 4 ); /* mbz */ + } + + *offsets = offsets_internal; + + return FT_Err_Ok; + } + } + + return FT_Err_Cannot_Open_Resource; + } + + +#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** ****/ + /**** Guessing functions ****/ + /**** ****/ + /**** When you add a new guessing function, ****/ + /**** update FT_RACCESS_N_RULES in ftrfork.h. ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + typedef FT_Error + (*raccess_guess_func)( FT_Library library, + FT_Stream stream, + char * base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + + static FT_Error + raccess_guess_apple_double( FT_Library library, + FT_Stream stream, + char * base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_apple_single( FT_Library library, + FT_Stream stream, + char * base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_darwin_ufs_export( FT_Library library, + FT_Stream stream, + char * base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_darwin_hfsplus( FT_Library library, + FT_Stream stream, + char * base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_vfat( FT_Library library, + FT_Stream stream, + char * base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_linux_cap( FT_Library library, + FT_Stream stream, + char * base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_linux_double( FT_Library library, + FT_Stream stream, + char * base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_linux_netatalk( FT_Library library, + FT_Stream stream, + char * base_file_name, + char **result_file_name, + FT_Long *result_offset ); + + + /*************************************************************************/ + /**** ****/ + /**** Helper functions ****/ + /**** ****/ + /*************************************************************************/ + + static FT_Error + raccess_guess_apple_generic( FT_Library library, + FT_Stream stream, + char * base_file_name, + FT_Int32 magic, + FT_Long *result_offset ); + + static FT_Error + raccess_guess_linux_double_from_file_name( FT_Library library, + char * file_name, + FT_Long *result_offset ); + + static char * + raccess_make_file_name( FT_Memory memory, + const char *original_name, + const char *insertion ); + + + FT_BASE_DEF( void ) + FT_Raccess_Guess( FT_Library library, + FT_Stream stream, + char* base_name, + char **new_names, + FT_Long *offsets, + FT_Error *errors ) + { + FT_Long i; + + + raccess_guess_func funcs[FT_RACCESS_N_RULES] = + { + raccess_guess_apple_double, + raccess_guess_apple_single, + raccess_guess_darwin_ufs_export, + raccess_guess_darwin_hfsplus, + raccess_guess_vfat, + raccess_guess_linux_cap, + raccess_guess_linux_double, + raccess_guess_linux_netatalk, + }; + + for ( i = 0; i < FT_RACCESS_N_RULES; i++ ) + { + new_names[i] = NULL; + errors[i] = FT_Stream_Seek( stream, 0 ); + if ( errors[i] ) + continue ; + + errors[i] = (funcs[i])( library, stream, base_name, + &(new_names[i]), &(offsets[i]) ); + } + + return; + } + + + static FT_Error + raccess_guess_apple_double( FT_Library library, + FT_Stream stream, + char * base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + FT_Int32 magic = ( 0x00 << 24 | 0x05 << 16 | 0x16 << 8 | 0x07 ); + + + *result_file_name = NULL; + return raccess_guess_apple_generic( library, stream, base_file_name, + magic, result_offset ); + } + + + static FT_Error + raccess_guess_apple_single( FT_Library library, + FT_Stream stream, + char * base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + FT_Int32 magic = (0x00 << 24 | 0x05 << 16 | 0x16 << 8 | 0x00); + + + *result_file_name = NULL; + return raccess_guess_apple_generic( library, stream, base_file_name, + magic, result_offset ); + } + + + static FT_Error + raccess_guess_darwin_ufs_export( FT_Library library, + FT_Stream stream, + char * base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + char* newpath; + FT_Error error; + FT_Memory memory; + + FT_UNUSED( stream ); + + + memory = library->memory; + newpath = raccess_make_file_name( memory, base_file_name, "._" ); + if ( !newpath ) + return FT_Err_Out_Of_Memory; + + error = raccess_guess_linux_double_from_file_name( library, newpath, + result_offset ); + if ( !error ) + *result_file_name = newpath; + else + FT_FREE( newpath ); + + return error; + } + + + static FT_Error + raccess_guess_darwin_hfsplus( FT_Library library, + FT_Stream stream, + char * base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + /* + Only meaningful on systems with hfs+ drivers (or Macs). + */ + FT_Error error; + char* newpath; + FT_Memory memory; + + FT_UNUSED( stream ); + + + memory = library->memory; + + if ( FT_ALLOC( newpath, + ft_strlen( base_file_name ) + ft_strlen( "/rsrc" ) + 1 ) ) + return error; + + ft_strcpy( newpath, base_file_name ); + ft_strcat( newpath, "/rsrc" ); + *result_file_name = newpath; + *result_offset = 0; + return FT_Err_Ok; + } + + + static FT_Error + raccess_guess_vfat( FT_Library library, + FT_Stream stream, + char * base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + char* newpath; + FT_Memory memory; + + FT_UNUSED( stream ); + + + memory = library->memory; + + newpath = raccess_make_file_name( memory, base_file_name, + "resource.frk/" ); + if ( !newpath ) + return FT_Err_Out_Of_Memory; + + *result_file_name = newpath; + *result_offset = 0; + + return FT_Err_Ok; + } + + + static FT_Error + raccess_guess_linux_cap( FT_Library library, + FT_Stream stream, + char * base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + char* newpath; + FT_Memory memory; + + FT_UNUSED( stream ); + + + memory = library->memory; + + newpath = raccess_make_file_name( memory, base_file_name, ".resource/" ); + if ( !newpath ) + return FT_Err_Out_Of_Memory; + + *result_file_name = newpath; + *result_offset = 0; + + return FT_Err_Ok; + } + + + static FT_Error + raccess_guess_linux_double( FT_Library library, + FT_Stream stream, + char * base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + char* newpath; + FT_Error error; + FT_Memory memory; + + FT_UNUSED( stream ); + + + memory = library->memory; + + newpath = raccess_make_file_name( memory, base_file_name, "%" ); + if ( !newpath ) + return FT_Err_Out_Of_Memory; + + error = raccess_guess_linux_double_from_file_name( library, newpath, + result_offset ); + if ( !error ) + *result_file_name = newpath; + else + FT_FREE( newpath ); + + return error; + } + + + static FT_Error + raccess_guess_linux_netatalk( FT_Library library, + FT_Stream stream, + char * base_file_name, + char **result_file_name, + FT_Long *result_offset ) + { + char* newpath; + FT_Error error; + FT_Memory memory; + + FT_UNUSED( stream ); + + + memory = library->memory; + + newpath = raccess_make_file_name( memory, base_file_name, + ".AppleDouble/" ); + if ( !newpath ) + return FT_Err_Out_Of_Memory; + + error = raccess_guess_linux_double_from_file_name( library, newpath, + result_offset ); + if ( !error ) + *result_file_name = newpath; + else + FT_FREE( newpath ); + + return error; + } + + + static FT_Error + raccess_guess_apple_generic( FT_Library library, + FT_Stream stream, + char * base_file_name, + FT_Int32 magic, + FT_Long *result_offset ) + { + FT_Int32 magic_from_stream; + FT_Error error; + FT_Int32 version_number; + FT_UShort n_of_entries; + + int i; + FT_UInt32 entry_id, entry_offset, entry_length; + + const FT_UInt32 resource_fork_entry_id = 0x2; + + FT_UNUSED( library ); + FT_UNUSED( base_file_name ); + + + if ( FT_READ_LONG ( magic_from_stream ) ) + return error; + if ( magic_from_stream != magic ) + return FT_Err_Unknown_File_Format; + + if ( FT_READ_LONG( version_number ) ) + return error; + + /* filler */ + error = FT_Stream_Skip( stream, 16 ); + if ( error ) + return error; + + if ( FT_READ_USHORT( n_of_entries ) ) + return error; + if ( n_of_entries == 0 ) + return FT_Err_Unknown_File_Format; + + for ( i = 0; i < n_of_entries; i++ ) + { + if ( FT_READ_LONG( entry_id ) ) + return error; + if ( entry_id == resource_fork_entry_id ) + { + if ( FT_READ_LONG( entry_offset ) || + FT_READ_LONG( entry_length ) ) + continue; + *result_offset = entry_offset; + + return FT_Err_Ok; + } + else + FT_Stream_Skip( stream, 4 + 4 ); /* offset + length */ + } + + return FT_Err_Unknown_File_Format; + } + + + static FT_Error + raccess_guess_linux_double_from_file_name( FT_Library library, + char * file_name, + FT_Long *result_offset ) + { + FT_Memory memory; + FT_Open_Args args2; + FT_Stream stream2; + char * nouse = NULL; + FT_Error error; + + + memory = library->memory; + + args2.flags = FT_OPEN_PATHNAME; + args2.pathname = file_name; + error = FT_Stream_New( library, &args2, &stream2 ); + if ( error ) + return error; + + error = raccess_guess_apple_double( library, stream2, file_name, + &nouse, result_offset ); + + FT_Stream_Close( stream2 ); + + return error; + } + + + static char* + raccess_make_file_name( FT_Memory memory, + const char *original_name, + const char *insertion ) + { + char* new_name; + char* tmp; + const char* slash; + unsigned new_length; + FT_ULong error; + + new_length = ft_strlen( original_name ) + ft_strlen( insertion ); + if ( FT_ALLOC( new_name, new_length + 1 ) ) + return NULL; + + tmp = ft_strrchr( original_name, '/' ); + if ( tmp ) + { + ft_strncpy( new_name, original_name, tmp - original_name + 1 ); + new_name[tmp - original_name + 1] = '\0'; + slash = tmp + 1; + } + else + { + slash = original_name; + new_name[0] = '\0'; + } + + ft_strcat( new_name, insertion ); + ft_strcat( new_name, slash ); + + return new_name; + } + + +#else /* !FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK */ + + + /*************************************************************************/ + /* Dummy function; just sets errors */ + /*************************************************************************/ + + FT_BASE_DEF( void ) + FT_Raccess_Guess( FT_Library library, + FT_Stream stream, + char* base_name, + char **new_names, + FT_Long *offsets, + FT_Error *errors ) + { + int i; + + + for ( i = 0; i < FT_RACCESS_N_RULES; i++ ) + { + new_names[i] = NULL; + offsets[i] = 0; + errors[i] = FT_Err_Unimplemented_Feature; + } + } + + +#endif /* !FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK */ + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftstream.c b/nx-X11/extras/freetype2/src/base/ftstream.c new file mode 100644 index 000000000..932fe1b40 --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftstream.c @@ -0,0 +1,803 @@ +/***************************************************************************/ +/* */ +/* ftstream.c */ +/* */ +/* I/O stream support (body). */ +/* */ +/* Copyright 2000-2001, 2002, 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. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_DEBUG_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_stream + + + FT_BASE_DEF( void ) + FT_Stream_OpenMemory( FT_Stream stream, + const FT_Byte* base, + FT_ULong size ) + { + stream->base = (FT_Byte*) base; + stream->size = size; + stream->pos = 0; + stream->cursor = 0; + stream->read = 0; + stream->close = 0; + } + + + FT_BASE_DEF( void ) + FT_Stream_Close( FT_Stream stream ) + { + if ( stream && stream->close ) + { + stream->close( stream ); + stream->close = NULL; + } + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_Seek( FT_Stream stream, + FT_ULong pos ) + { + FT_Error error = FT_Err_Ok; + + + stream->pos = pos; + + if ( stream->read ) + { + if ( stream->read( stream, pos, 0, 0 ) ) + { + FT_ERROR(( "FT_Stream_Seek: invalid i/o; pos = 0x%lx, size = 0x%lx\n", + pos, stream->size )); + + error = FT_Err_Invalid_Stream_Operation; + } + } + /* note that seeking to the first position after the file is valid */ + else if ( pos > stream->size ) + { + FT_ERROR(( "FT_Stream_Seek: invalid i/o; pos = 0x%lx, size = 0x%lx\n", + pos, stream->size )); + + error = FT_Err_Invalid_Stream_Operation; + } + + return error; + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_Skip( FT_Stream stream, + FT_Long distance ) + { + return FT_Stream_Seek( stream, (FT_ULong)( stream->pos + distance ) ); + } + + + FT_BASE_DEF( FT_Long ) + FT_Stream_Pos( FT_Stream stream ) + { + return stream->pos; + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_Read( FT_Stream stream, + FT_Byte* buffer, + FT_ULong count ) + { + return FT_Stream_ReadAt( stream, stream->pos, buffer, count ); + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_ReadAt( FT_Stream stream, + FT_ULong pos, + FT_Byte* buffer, + FT_ULong count ) + { + FT_Error error = FT_Err_Ok; + FT_ULong read_bytes; + + + if ( pos >= stream->size ) + { + FT_ERROR(( "FT_Stream_ReadAt: invalid i/o; pos = 0x%lx, size = 0x%lx\n", + pos, stream->size )); + + return FT_Err_Invalid_Stream_Operation; + } + + if ( stream->read ) + read_bytes = stream->read( stream, pos, buffer, count ); + else + { + read_bytes = stream->size - pos; + if ( read_bytes > count ) + read_bytes = count; + + FT_MEM_COPY( buffer, stream->base + pos, read_bytes ); + } + + stream->pos = pos + read_bytes; + + if ( read_bytes < count ) + { + FT_ERROR(( "FT_Stream_ReadAt:" )); + FT_ERROR(( " invalid read; expected %lu bytes, got %lu\n", + count, read_bytes )); + + error = FT_Err_Invalid_Stream_Operation; + } + + return error; + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_ExtractFrame( FT_Stream stream, + FT_ULong count, + FT_Byte** pbytes ) + { + FT_Error error; + + + error = FT_Stream_EnterFrame( stream, count ); + if ( !error ) + { + *pbytes = (FT_Byte*)stream->cursor; + + /* equivalent to FT_Stream_ExitFrame(), with no memory block release */ + stream->cursor = 0; + stream->limit = 0; + } + + return error; + } + + + FT_BASE_DEF( void ) + FT_Stream_ReleaseFrame( FT_Stream stream, + FT_Byte** pbytes ) + { + if ( stream->read ) + { + FT_Memory memory = stream->memory; + + + FT_FREE( *pbytes ); + } + *pbytes = 0; + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_EnterFrame( FT_Stream stream, + FT_ULong count ) + { + FT_Error error = FT_Err_Ok; + FT_ULong read_bytes; + + + /* check for nested frame access */ + FT_ASSERT( stream && stream->cursor == 0 ); + + if ( stream->read ) + { + /* allocate the frame in memory */ + FT_Memory memory = stream->memory; + + + if ( FT_QALLOC( stream->base, count ) ) + goto Exit; + + /* read it */ + read_bytes = stream->read( stream, stream->pos, + stream->base, count ); + if ( read_bytes < count ) + { + FT_ERROR(( "FT_Stream_EnterFrame:" )); + FT_ERROR(( " invalid read; expected %lu bytes, got %lu\n", + count, read_bytes )); + + FT_FREE( stream->base ); + error = FT_Err_Invalid_Stream_Operation; + } + stream->cursor = stream->base; + stream->limit = stream->cursor + count; + stream->pos += read_bytes; + } + else + { + /* check current and new position */ + if ( stream->pos >= stream->size || + stream->pos + count > stream->size ) + { + FT_ERROR(( "FT_Stream_EnterFrame:" )); + FT_ERROR(( " invalid i/o; pos = 0x%lx, count = %lu, size = 0x%lx\n", + stream->pos, count, stream->size )); + + error = FT_Err_Invalid_Stream_Operation; + goto Exit; + } + + /* set cursor */ + stream->cursor = stream->base + stream->pos; + stream->limit = stream->cursor + count; + stream->pos += count; + } + + Exit: + return error; + } + + + FT_BASE_DEF( void ) + FT_Stream_ExitFrame( FT_Stream stream ) + { + /* IMPORTANT: The assertion stream->cursor != 0 was removed, given */ + /* that it is possible to access a frame of length 0 in */ + /* some weird fonts (usually, when accessing an array of */ + /* 0 records, like in some strange kern tables). */ + /* */ + /* In this case, the loader code handles the 0-length table */ + /* gracefully; however, stream.cursor is really set to 0 by the */ + /* FT_Stream_EnterFrame() call, and this is not an error. */ + /* */ + FT_ASSERT( stream ); + + if ( stream->read ) + { + FT_Memory memory = stream->memory; + + + FT_FREE( stream->base ); + } + stream->cursor = 0; + stream->limit = 0; + } + + + FT_BASE_DEF( FT_Char ) + FT_Stream_GetChar( FT_Stream stream ) + { + FT_Char result; + + + FT_ASSERT( stream && stream->cursor ); + + result = 0; + if ( stream->cursor < stream->limit ) + result = *stream->cursor++; + + return result; + } + + + FT_BASE_DEF( FT_Short ) + FT_Stream_GetShort( FT_Stream stream ) + { + FT_Byte* p; + FT_Short result; + + + FT_ASSERT( stream && stream->cursor ); + + result = 0; + p = stream->cursor; + if ( p + 1 < stream->limit ) + result = FT_NEXT_SHORT( p ); + stream->cursor = p; + + return result; + } + + + FT_BASE_DEF( FT_Short ) + FT_Stream_GetShortLE( FT_Stream stream ) + { + FT_Byte* p; + FT_Short result; + + + FT_ASSERT( stream && stream->cursor ); + + result = 0; + p = stream->cursor; + if ( p + 1 < stream->limit ) + result = FT_NEXT_SHORT_LE( p ); + stream->cursor = p; + + return result; + } + + + FT_BASE_DEF( FT_Long ) + FT_Stream_GetOffset( FT_Stream stream ) + { + FT_Byte* p; + FT_Long result; + + + FT_ASSERT( stream && stream->cursor ); + + result = 0; + p = stream->cursor; + if ( p + 2 < stream->limit ) + result = FT_NEXT_OFF3( p ); + stream->cursor = p; + return result; + } + + + FT_BASE_DEF( FT_Long ) + FT_Stream_GetLong( FT_Stream stream ) + { + FT_Byte* p; + FT_Long result; + + + FT_ASSERT( stream && stream->cursor ); + + result = 0; + p = stream->cursor; + if ( p + 3 < stream->limit ) + result = FT_NEXT_LONG( p ); + stream->cursor = p; + return result; + } + + + FT_BASE_DEF( FT_Long ) + FT_Stream_GetLongLE( FT_Stream stream ) + { + FT_Byte* p; + FT_Long result; + + + FT_ASSERT( stream && stream->cursor ); + + result = 0; + p = stream->cursor; + if ( p + 3 < stream->limit ) + result = FT_NEXT_LONG_LE( p ); + stream->cursor = p; + return result; + } + + + FT_BASE_DEF( FT_Char ) + FT_Stream_ReadChar( FT_Stream stream, + FT_Error* error ) + { + FT_Byte result = 0; + + + FT_ASSERT( stream ); + + *error = FT_Err_Ok; + + if ( stream->read ) + { + if ( stream->read( stream, stream->pos, &result, 1L ) != 1L ) + goto Fail; + } + else + { + if ( stream->pos < stream->size ) + result = stream->base[stream->pos]; + else + goto Fail; + } + stream->pos++; + + return result; + + Fail: + *error = FT_Err_Invalid_Stream_Operation; + FT_ERROR(( "FT_Stream_ReadChar: invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); + + return 0; + } + + + FT_BASE_DEF( FT_Short ) + FT_Stream_ReadShort( FT_Stream stream, + FT_Error* error ) + { + FT_Byte reads[2]; + FT_Byte* p = 0; + FT_Short result = 0; + + + FT_ASSERT( stream ); + + *error = FT_Err_Ok; + + if ( stream->pos + 1 < stream->size ) + { + if ( stream->read ) + { + if ( stream->read( stream, stream->pos, reads, 2L ) != 2L ) + goto Fail; + + p = reads; + } + else + { + p = stream->base + stream->pos; + } + + if ( p ) + result = FT_NEXT_SHORT( p ); + } + else + goto Fail; + + stream->pos += 2; + + return result; + + Fail: + *error = FT_Err_Invalid_Stream_Operation; + FT_ERROR(( "FT_Stream_ReadShort:" )); + FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); + + return 0; + } + + + FT_BASE_DEF( FT_Short ) + FT_Stream_ReadShortLE( FT_Stream stream, + FT_Error* error ) + { + FT_Byte reads[2]; + FT_Byte* p = 0; + FT_Short result = 0; + + + FT_ASSERT( stream ); + + *error = FT_Err_Ok; + + if ( stream->pos + 1 < stream->size ) + { + if ( stream->read ) + { + if ( stream->read( stream, stream->pos, reads, 2L ) != 2L ) + goto Fail; + + p = reads; + } + else + { + p = stream->base + stream->pos; + } + + if ( p ) + result = FT_NEXT_SHORT_LE( p ); + } + else + goto Fail; + + stream->pos += 2; + + return result; + + Fail: + *error = FT_Err_Invalid_Stream_Operation; + FT_ERROR(( "FT_Stream_ReadShortLE:" )); + FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); + + return 0; + } + + + FT_BASE_DEF( FT_Long ) + FT_Stream_ReadOffset( FT_Stream stream, + FT_Error* error ) + { + FT_Byte reads[3]; + FT_Byte* p = 0; + FT_Long result = 0; + + + FT_ASSERT( stream ); + + *error = FT_Err_Ok; + + if ( stream->pos + 2 < stream->size ) + { + if ( stream->read ) + { + if (stream->read( stream, stream->pos, reads, 3L ) != 3L ) + goto Fail; + + p = reads; + } + else + { + p = stream->base + stream->pos; + } + + if ( p ) + result = FT_NEXT_OFF3( p ); + } + else + goto Fail; + + stream->pos += 3; + + return result; + + Fail: + *error = FT_Err_Invalid_Stream_Operation; + FT_ERROR(( "FT_Stream_ReadOffset:" )); + FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); + + return 0; + } + + + FT_BASE_DEF( FT_Long ) + FT_Stream_ReadLong( FT_Stream stream, + FT_Error* error ) + { + FT_Byte reads[4]; + FT_Byte* p = 0; + FT_Long result = 0; + + + FT_ASSERT( stream ); + + *error = FT_Err_Ok; + + if ( stream->pos + 3 < stream->size ) + { + if ( stream->read ) + { + if ( stream->read( stream, stream->pos, reads, 4L ) != 4L ) + goto Fail; + + p = reads; + } + else + { + p = stream->base + stream->pos; + } + + if ( p ) + result = FT_NEXT_LONG( p ); + } + else + goto Fail; + + stream->pos += 4; + + return result; + + Fail: + FT_ERROR(( "FT_Stream_ReadLong: invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); + *error = FT_Err_Invalid_Stream_Operation; + + return 0; + } + + + FT_BASE_DEF( FT_Long ) + FT_Stream_ReadLongLE( FT_Stream stream, + FT_Error* error ) + { + FT_Byte reads[4]; + FT_Byte* p = 0; + FT_Long result = 0; + + + FT_ASSERT( stream ); + + *error = FT_Err_Ok; + + if ( stream->pos + 3 < stream->size ) + { + if ( stream->read ) + { + if ( stream->read( stream, stream->pos, reads, 4L ) != 4L ) + goto Fail; + + p = reads; + } + else + { + p = stream->base + stream->pos; + } + + if ( p ) + result = FT_NEXT_LONG_LE( p ); + } + else + goto Fail; + + stream->pos += 4; + + return result; + + Fail: + FT_ERROR(( "FT_Stream_ReadLongLE:" )); + FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); + *error = FT_Err_Invalid_Stream_Operation; + + return 0; + } + + + FT_BASE_DEF( FT_Error ) + FT_Stream_ReadFields( FT_Stream stream, + const FT_Frame_Field* fields, + void* structure ) + { + FT_Error error; + FT_Bool frame_accessed = 0; + FT_Byte* cursor = stream->cursor; + + + if ( !fields || !stream ) + return FT_Err_Invalid_Argument; + + error = FT_Err_Ok; + do + { + FT_ULong value; + FT_Int sign_shift; + FT_Byte* p; + + + switch ( fields->value ) + { + case ft_frame_start: /* access a new frame */ + error = FT_Stream_EnterFrame( stream, fields->offset ); + if ( error ) + goto Exit; + + frame_accessed = 1; + cursor = stream->cursor; + fields++; + continue; /* loop! */ + + case ft_frame_bytes: /* read a byte sequence */ + case ft_frame_skip: /* skip some bytes */ + { + FT_UInt len = fields->size; + + + if ( cursor + len > stream->limit ) + { + error = FT_Err_Invalid_Stream_Operation; + goto Exit; + } + + if ( fields->value == ft_frame_bytes ) + { + p = (FT_Byte*)structure + fields->offset; + FT_MEM_COPY( p, cursor, len ); + } + cursor += len; + fields++; + continue; + } + + case ft_frame_byte: + case ft_frame_schar: /* read a single byte */ + value = FT_NEXT_BYTE(cursor); + sign_shift = 24; + break; + + case ft_frame_short_be: + case ft_frame_ushort_be: /* read a 2-byte big-endian short */ + value = FT_NEXT_USHORT(cursor); + sign_shift = 16; + break; + + case ft_frame_short_le: + case ft_frame_ushort_le: /* read a 2-byte little-endian short */ + value = FT_NEXT_USHORT_LE(cursor); + sign_shift = 16; + break; + + case ft_frame_long_be: + case ft_frame_ulong_be: /* read a 4-byte big-endian long */ + value = FT_NEXT_ULONG(cursor); + sign_shift = 0; + break; + + case ft_frame_long_le: + case ft_frame_ulong_le: /* read a 4-byte little-endian long */ + value = FT_NEXT_ULONG_LE(cursor); + sign_shift = 0; + break; + + case ft_frame_off3_be: + case ft_frame_uoff3_be: /* read a 3-byte big-endian long */ + value = FT_NEXT_UOFF3(cursor); + sign_shift = 8; + break; + + case ft_frame_off3_le: + case ft_frame_uoff3_le: /* read a 3-byte little-endian long */ + value = FT_NEXT_UOFF3_LE(cursor); + sign_shift = 8; + break; + + default: + /* otherwise, exit the loop */ + stream->cursor = cursor; + goto Exit; + } + + /* now, compute the signed value is necessary */ + if ( fields->value & FT_FRAME_OP_SIGNED ) + value = (FT_ULong)( (FT_Int32)( value << sign_shift ) >> sign_shift ); + + /* finally, store the value in the object */ + + p = (FT_Byte*)structure + fields->offset; + switch ( fields->size ) + { + case (8 / FT_CHAR_BIT): + *(FT_Byte*)p = (FT_Byte)value; + break; + + case (16 / FT_CHAR_BIT): + *(FT_UShort*)p = (FT_UShort)value; + break; + + case (32 / FT_CHAR_BIT): + *(FT_UInt32*)p = (FT_UInt32)value; + break; + + default: /* for 64-bit systems */ + *(FT_ULong*)p = (FT_ULong)value; + } + + /* go to next field */ + fields++; + } + while ( 1 ); + + Exit: + /* close the frame if it was opened by this read */ + if ( frame_accessed ) + FT_Stream_ExitFrame( stream ); + + return error; + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftstroke.c b/nx-X11/extras/freetype2/src/base/ftstroke.c new file mode 100644 index 000000000..10aad2db8 --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftstroke.c @@ -0,0 +1,1906 @@ +/***************************************************************************/ +/* */ +/* ftstroke.c */ +/* */ +/* FreeType path stroker (body). */ +/* */ +/* Copyright 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. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_STROKER_H +#include FT_TRIGONOMETRY_H +#include FT_OUTLINE_H +#include FT_INTERNAL_MEMORY_H +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_OBJECTS_H + + FT_EXPORT_DEF( FT_StrokerBorder ) + FT_Outline_GetInsideBorder( FT_Outline* outline ) + { + FT_Orientation o = FT_Outline_Get_Orientation( outline ); + + + return o == FT_ORIENTATION_TRUETYPE ? FT_STROKER_BORDER_RIGHT + : FT_STROKER_BORDER_LEFT ; + } + + + FT_EXPORT_DEF( FT_StrokerBorder ) + FT_Outline_GetOutsideBorder( FT_Outline* outline ) + { + FT_Orientation o = FT_Outline_Get_Orientation( outline ); + + + return o == FT_ORIENTATION_TRUETYPE ? FT_STROKER_BORDER_LEFT + : FT_STROKER_BORDER_RIGHT ; + } + + + /***************************************************************************/ + /***************************************************************************/ + /***** *****/ + /***** BEZIER COMPUTATIONS *****/ + /***** *****/ + /***************************************************************************/ + /***************************************************************************/ + +#define FT_SMALL_CONIC_THRESHOLD ( FT_ANGLE_PI / 6 ) +#define FT_SMALL_CUBIC_THRESHOLD ( FT_ANGLE_PI / 6 ) +#define FT_EPSILON 2 + +#define FT_IS_SMALL( x ) ( (x) > -FT_EPSILON && (x) < FT_EPSILON ) + + + static FT_Pos + ft_pos_abs( FT_Pos x ) + { + return x >= 0 ? x : -x ; + } + + + static void + ft_conic_split( FT_Vector* base ) + { + FT_Pos a, b; + + + base[4].x = base[2].x; + b = base[1].x; + a = base[3].x = ( base[2].x + b ) / 2; + b = base[1].x = ( base[0].x + b ) / 2; + base[2].x = ( a + b ) / 2; + + base[4].y = base[2].y; + b = base[1].y; + a = base[3].y = ( base[2].y + b ) / 2; + b = base[1].y = ( base[0].y + b ) / 2; + base[2].y = ( a + b ) / 2; + } + + + static FT_Bool + ft_conic_is_small_enough( FT_Vector* base, + FT_Angle *angle_in, + FT_Angle *angle_out ) + { + FT_Vector d1, d2; + FT_Angle theta; + FT_Int close1, close2; + + + d1.x = base[1].x - base[2].x; + d1.y = base[1].y - base[2].y; + d2.x = base[0].x - base[1].x; + d2.y = base[0].y - base[1].y; + + close1 = FT_IS_SMALL( d1.x ) && FT_IS_SMALL( d1.y ); + close2 = FT_IS_SMALL( d2.x ) && FT_IS_SMALL( d2.y ); + + if ( close1 ) + { + if ( close2 ) + *angle_in = *angle_out = 0; + else + *angle_in = *angle_out = FT_Atan2( d2.x, d2.y ); + } + else if ( close2 ) + { + *angle_in = *angle_out = FT_Atan2( d1.x, d1.y ); + } + else + { + *angle_in = FT_Atan2( d1.x, d1.y ); + *angle_out = FT_Atan2( d2.x, d2.y ); + } + + theta = ft_pos_abs( FT_Angle_Diff( *angle_in, *angle_out ) ); + + return FT_BOOL( theta < FT_SMALL_CONIC_THRESHOLD ); + } + + + static void + ft_cubic_split( FT_Vector* base ) + { + FT_Pos a, b, c, d; + + + base[6].x = base[3].x; + c = base[1].x; + d = base[2].x; + base[1].x = a = ( base[0].x + c ) / 2; + base[5].x = b = ( base[3].x + d ) / 2; + c = ( c + d ) / 2; + base[2].x = a = ( a + c ) / 2; + base[4].x = b = ( b + c ) / 2; + base[3].x = ( a + b ) / 2; + + base[6].y = base[3].y; + c = base[1].y; + d = base[2].y; + base[1].y = a = ( base[0].y + c ) / 2; + base[5].y = b = ( base[3].y + d ) / 2; + c = ( c + d ) / 2; + base[2].y = a = ( a + c ) / 2; + base[4].y = b = ( b + c ) / 2; + base[3].y = ( a + b ) / 2; + } + + + static FT_Bool + ft_cubic_is_small_enough( FT_Vector* base, + FT_Angle *angle_in, + FT_Angle *angle_mid, + FT_Angle *angle_out ) + { + FT_Vector d1, d2, d3; + FT_Angle theta1, theta2; + FT_Int close1, close2, close3; + + + d1.x = base[2].x - base[3].x; + d1.y = base[2].y - base[3].y; + d2.x = base[1].x - base[2].x; + d2.y = base[1].y - base[2].y; + d3.x = base[0].x - base[1].x; + d3.y = base[0].y - base[1].y; + + close1 = FT_IS_SMALL( d1.x ) && FT_IS_SMALL( d1.y ); + close2 = FT_IS_SMALL( d2.x ) && FT_IS_SMALL( d2.y ); + close3 = FT_IS_SMALL( d3.x ) && FT_IS_SMALL( d3.y ); + + if ( close1 || close3 ) + { + if ( close2 ) + { + /* basically a point */ + *angle_in = *angle_out = *angle_mid = 0; + } + else if ( close1 ) + { + *angle_in = *angle_mid = FT_Atan2( d2.x, d2.y ); + *angle_out = FT_Atan2( d3.x, d3.y ); + } + else /* close2 */ + { + *angle_in = FT_Atan2( d1.x, d1.y ); + *angle_mid = *angle_out = FT_Atan2( d2.x, d2.y ); + } + } + else if ( close2 ) + { + *angle_in = *angle_mid = FT_Atan2( d1.x, d1.y ); + *angle_out = FT_Atan2( d3.x, d3.y ); + } + else + { + *angle_in = FT_Atan2( d1.x, d1.y ); + *angle_mid = FT_Atan2( d2.x, d2.y ); + *angle_out = FT_Atan2( d3.x, d3.y ); + } + + theta1 = ft_pos_abs( FT_Angle_Diff( *angle_in, *angle_mid ) ); + theta2 = ft_pos_abs( FT_Angle_Diff( *angle_mid, *angle_out ) ); + + return FT_BOOL( theta1 < FT_SMALL_CUBIC_THRESHOLD && + theta2 < FT_SMALL_CUBIC_THRESHOLD ); + } + + + /***************************************************************************/ + /***************************************************************************/ + /***** *****/ + /***** STROKE BORDERS *****/ + /***** *****/ + /***************************************************************************/ + /***************************************************************************/ + + typedef enum + { + FT_STROKE_TAG_ON = 1, /* on-curve point */ + FT_STROKE_TAG_CUBIC = 2, /* cubic off-point */ + FT_STROKE_TAG_BEGIN = 4, /* sub-path start */ + FT_STROKE_TAG_END = 8 /* sub-path end */ + + } FT_StrokeTags; + + + typedef struct FT_StrokeBorderRec_ + { + FT_UInt num_points; + FT_UInt max_points; + FT_Vector* points; + FT_Byte* tags; + FT_Bool movable; + FT_Int start; /* index of current sub-path start point */ + FT_Memory memory; + FT_Bool valid; + + } FT_StrokeBorderRec, *FT_StrokeBorder; + + + static FT_Error + ft_stroke_border_grow( FT_StrokeBorder border, + FT_UInt new_points ) + { + FT_UInt old_max = border->max_points; + FT_UInt new_max = border->num_points + new_points; + FT_Error error = 0; + + + if ( new_max > old_max ) + { + FT_UInt cur_max = old_max; + FT_Memory memory = border->memory; + + + while ( cur_max < new_max ) + cur_max += ( cur_max >> 1 ) + 16; + + if ( FT_RENEW_ARRAY( border->points, old_max, cur_max ) || + FT_RENEW_ARRAY( border->tags, old_max, cur_max ) ) + goto Exit; + + border->max_points = cur_max; + } + Exit: + return error; + } + + + static void + ft_stroke_border_close( FT_StrokeBorder border ) + { + FT_ASSERT( border->start >= 0 ); + + /* don't record empty paths! */ + if ( border->num_points > (FT_UInt)border->start ) + { + border->tags[border->start ] |= FT_STROKE_TAG_BEGIN; + border->tags[border->num_points - 1] |= FT_STROKE_TAG_END; + } + + border->start = -1; + border->movable = 0; + } + + + static FT_Error + ft_stroke_border_lineto( FT_StrokeBorder border, + FT_Vector* to, + FT_Bool movable ) + { + FT_Error error = 0; + + + FT_ASSERT( border->start >= 0 ); + + if ( border->movable ) + { + /* move last point */ + border->points[border->num_points - 1] = *to; + } + else + { + /* add one point */ + error = ft_stroke_border_grow( border, 1 ); + if ( !error ) + { + FT_Vector* vec = border->points + border->num_points; + FT_Byte* tag = border->tags + border->num_points; + + + vec[0] = *to; + tag[0] = FT_STROKE_TAG_ON; + + border->num_points += 1; + } + } + border->movable = movable; + return error; + } + + + static FT_Error + ft_stroke_border_conicto( FT_StrokeBorder border, + FT_Vector* control, + FT_Vector* to ) + { + FT_Error error; + + + FT_ASSERT( border->start >= 0 ); + + error = ft_stroke_border_grow( border, 2 ); + if ( !error ) + { + FT_Vector* vec = border->points + border->num_points; + FT_Byte* tag = border->tags + border->num_points; + + vec[0] = *control; + vec[1] = *to; + + tag[0] = 0; + tag[1] = FT_STROKE_TAG_ON; + + border->num_points += 2; + } + border->movable = 0; + return error; + } + + + static FT_Error + ft_stroke_border_cubicto( FT_StrokeBorder border, + FT_Vector* control1, + FT_Vector* control2, + FT_Vector* to ) + { + FT_Error error; + + + FT_ASSERT( border->start >= 0 ); + + error = ft_stroke_border_grow( border, 3 ); + if ( !error ) + { + FT_Vector* vec = border->points + border->num_points; + FT_Byte* tag = border->tags + border->num_points; + + + vec[0] = *control1; + vec[1] = *control2; + vec[2] = *to; + + tag[0] = FT_STROKE_TAG_CUBIC; + tag[1] = FT_STROKE_TAG_CUBIC; + tag[2] = FT_STROKE_TAG_ON; + + border->num_points += 3; + } + border->movable = 0; + return error; + } + + +#define FT_ARC_CUBIC_ANGLE ( FT_ANGLE_PI / 2 ) + + + static FT_Error + ft_stroke_border_arcto( FT_StrokeBorder border, + FT_Vector* center, + FT_Fixed radius, + FT_Angle angle_start, + FT_Angle angle_diff ) + { + FT_Angle total, angle, step, rotate, next, theta; + FT_Vector a, b, a2, b2; + FT_Fixed length; + FT_Error error = 0; + + + /* compute start point */ + FT_Vector_From_Polar( &a, radius, angle_start ); + a.x += center->x; + a.y += center->y; + + total = angle_diff; + angle = angle_start; + rotate = ( angle_diff >= 0 ) ? FT_ANGLE_PI2 : -FT_ANGLE_PI2; + + while ( total != 0 ) + { + step = total; + if ( step > FT_ARC_CUBIC_ANGLE ) + step = FT_ARC_CUBIC_ANGLE; + + else if ( step < -FT_ARC_CUBIC_ANGLE ) + step = -FT_ARC_CUBIC_ANGLE; + + next = angle + step; + theta = step; + if ( theta < 0 ) + theta = -theta; + + theta >>= 1; + + /* compute end point */ + FT_Vector_From_Polar( &b, radius, next ); + b.x += center->x; + b.y += center->y; + + /* compute first and second control points */ + length = FT_MulDiv( radius, FT_Sin( theta ) * 4, + ( 0x10000L + FT_Cos( theta ) ) * 3 ); + + FT_Vector_From_Polar( &a2, length, angle + rotate ); + a2.x += a.x; + a2.y += a.y; + + FT_Vector_From_Polar( &b2, length, next - rotate ); + b2.x += b.x; + b2.y += b.y; + + /* add cubic arc */ + error = ft_stroke_border_cubicto( border, &a2, &b2, &b ); + if ( error ) + break; + + /* process the rest of the arc ?? */ + a = b; + total -= step; + angle = next; + } + + return error; + } + + + static FT_Error + ft_stroke_border_moveto( FT_StrokeBorder border, + FT_Vector* to ) + { + /* close current open path if any ? */ + if ( border->start >= 0 ) + ft_stroke_border_close( border ); + + border->start = border->num_points; + border->movable = 0; + + return ft_stroke_border_lineto( border, to, 0 ); + } + + + static void + ft_stroke_border_init( FT_StrokeBorder border, + FT_Memory memory ) + { + border->memory = memory; + border->points = NULL; + border->tags = NULL; + + border->num_points = 0; + border->max_points = 0; + border->start = -1; + border->valid = 0; + } + + + static void + ft_stroke_border_reset( FT_StrokeBorder border ) + { + border->num_points = 0; + border->start = -1; + border->valid = 0; + } + + + static void + ft_stroke_border_done( FT_StrokeBorder border ) + { + FT_Memory memory = border->memory; + + + FT_FREE( border->points ); + FT_FREE( border->tags ); + + border->num_points = 0; + border->max_points = 0; + border->start = -1; + border->valid = 0; + } + + + static FT_Error + ft_stroke_border_get_counts( FT_StrokeBorder border, + FT_UInt *anum_points, + FT_UInt *anum_contours ) + { + FT_Error error = 0; + FT_UInt num_points = 0; + FT_UInt num_contours = 0; + + FT_UInt count = border->num_points; + FT_Vector* point = border->points; + FT_Byte* tags = border->tags; + FT_Int in_contour = 0; + + + for ( ; count > 0; count--, num_points++, point++, tags++ ) + { + if ( tags[0] & FT_STROKE_TAG_BEGIN ) + { + if ( in_contour != 0 ) + goto Fail; + + in_contour = 1; + } + else if ( in_contour == 0 ) + goto Fail; + + if ( tags[0] & FT_STROKE_TAG_END ) + { + if ( in_contour == 0 ) + goto Fail; + + in_contour = 0; + num_contours++; + } + } + + if ( in_contour != 0 ) + goto Fail; + + border->valid = 1; + + Exit: + *anum_points = num_points; + *anum_contours = num_contours; + return error; + + Fail: + num_points = 0; + num_contours = 0; + goto Exit; + } + + + static void + ft_stroke_border_export( FT_StrokeBorder border, + FT_Outline* outline ) + { + /* copy point locations */ + FT_ARRAY_COPY( outline->points + outline->n_points, + border->points, + border->num_points ); + + /* copy tags */ + { + FT_UInt count = border->num_points; + FT_Byte* read = border->tags; + FT_Byte* write = (FT_Byte*)outline->tags + outline->n_points; + + + for ( ; count > 0; count--, read++, write++ ) + { + if ( *read & FT_STROKE_TAG_ON ) + *write = FT_CURVE_TAG_ON; + else if ( *read & FT_STROKE_TAG_CUBIC ) + *write = FT_CURVE_TAG_CUBIC; + else + *write = FT_CURVE_TAG_CONIC; + } + } + + /* copy contours */ + { + FT_UInt count = border->num_points; + FT_Byte* tags = border->tags; + FT_Short* write = outline->contours + outline->n_contours; + FT_Short idx = (FT_Short)outline->n_points; + + + for ( ; count > 0; count--, tags++, idx++ ) + { + if ( *tags & FT_STROKE_TAG_END ) + { + *write++ = idx; + outline->n_contours++; + } + } + } + + outline->n_points = (short)( outline->n_points + border->num_points ); + + FT_ASSERT( FT_Outline_Check( outline ) == 0 ); + } + + + /***************************************************************************/ + /***************************************************************************/ + /***** *****/ + /***** STROKER *****/ + /***** *****/ + /***************************************************************************/ + /***************************************************************************/ + +#define FT_SIDE_TO_ROTATE( s ) ( FT_ANGLE_PI2 - (s) * FT_ANGLE_PI ) + + typedef struct FT_StrokerRec_ + { + FT_Angle angle_in; + FT_Angle angle_out; + FT_Vector center; + FT_Bool first_point; + FT_Bool subpath_open; + FT_Angle subpath_angle; + FT_Vector subpath_start; + + FT_Stroker_LineCap line_cap; + FT_Stroker_LineJoin line_join; + FT_Fixed miter_limit; + FT_Fixed radius; + + FT_Bool valid; + FT_StrokeBorderRec borders[2]; + FT_Memory memory; + + } FT_StrokerRec; + + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_New( FT_Memory memory, + FT_Stroker *astroker ) + { + FT_Error error; + FT_Stroker stroker; + + + if ( !FT_NEW( stroker ) ) + { + stroker->memory = memory; + + ft_stroke_border_init( &stroker->borders[0], memory ); + ft_stroke_border_init( &stroker->borders[1], memory ); + } + *astroker = stroker; + return error; + } + + + FT_EXPORT_DEF( void ) + FT_Stroker_Set( FT_Stroker stroker, + FT_Fixed radius, + FT_Stroker_LineCap line_cap, + FT_Stroker_LineJoin line_join, + FT_Fixed miter_limit ) + { + stroker->radius = radius; + stroker->line_cap = line_cap; + stroker->line_join = line_join; + stroker->miter_limit = miter_limit; + + FT_Stroker_Rewind( stroker ); + } + + + FT_EXPORT_DEF( void ) + FT_Stroker_Rewind( FT_Stroker stroker ) + { + if ( stroker ) + { + ft_stroke_border_reset( &stroker->borders[0] ); + ft_stroke_border_reset( &stroker->borders[1] ); + } + } + + + FT_EXPORT_DEF( void ) + FT_Stroker_Done( FT_Stroker stroker ) + { + if ( stroker ) + { + FT_Memory memory = stroker->memory; + + + ft_stroke_border_done( &stroker->borders[0] ); + ft_stroke_border_done( &stroker->borders[1] ); + + stroker->memory = NULL; + FT_FREE( stroker ); + } + } + + + /* creates a circular arc at a corner or cap */ + static FT_Error + ft_stroker_arcto( FT_Stroker stroker, + FT_Int side ) + { + FT_Angle total, rotate; + FT_Fixed radius = stroker->radius; + FT_Error error = 0; + FT_StrokeBorder border = stroker->borders + side; + + + rotate = FT_SIDE_TO_ROTATE( side ); + + total = FT_Angle_Diff( stroker->angle_in, stroker->angle_out ); + if ( total == FT_ANGLE_PI ) + total = -rotate * 2; + + error = ft_stroke_border_arcto( border, + &stroker->center, + radius, + stroker->angle_in + rotate, + total ); + border->movable = 0; + return error; + } + + + /* adds a cap at the end of an opened path */ + static FT_Error + ft_stroker_cap( FT_Stroker stroker, + FT_Angle angle, + FT_Int side ) + { + FT_Error error = 0; + + + if ( stroker->line_cap == FT_STROKER_LINECAP_ROUND ) + { + /* add a round cap */ + stroker->angle_in = angle; + stroker->angle_out = angle + FT_ANGLE_PI; + error = ft_stroker_arcto( stroker, side ); + } + else if ( stroker->line_cap == FT_STROKER_LINECAP_SQUARE ) + { + /* add a square cap */ + FT_Vector delta, delta2; + FT_Angle rotate = FT_SIDE_TO_ROTATE( side ); + FT_Fixed radius = stroker->radius; + FT_StrokeBorder border = stroker->borders + side; + + + FT_Vector_From_Polar( &delta2, radius, angle + rotate ); + FT_Vector_From_Polar( &delta, radius, angle ); + + delta.x += stroker->center.x + delta2.x; + delta.y += stroker->center.y + delta2.y; + + error = ft_stroke_border_lineto( border, &delta, 0 ); + if ( error ) + goto Exit; + + FT_Vector_From_Polar( &delta2, radius, angle - rotate ); + FT_Vector_From_Polar( &delta, radius, angle ); + + delta.x += delta2.x + stroker->center.x; + delta.y += delta2.y + stroker->center.y; + + error = ft_stroke_border_lineto( border, &delta, 0 ); + } + + Exit: + return error; + } + + + /* process an inside corner, i.e. compute intersection */ + static FT_Error + ft_stroker_inside( FT_Stroker stroker, + FT_Int side) + { + FT_StrokeBorder border = stroker->borders + side; + FT_Angle phi, theta, rotate; + FT_Fixed length, thcos, sigma; + FT_Vector delta; + FT_Error error = 0; + + + rotate = FT_SIDE_TO_ROTATE( side ); + + /* compute median angle */ + theta = FT_Angle_Diff( stroker->angle_in, stroker->angle_out ); + if ( theta == FT_ANGLE_PI ) + theta = rotate; + else + theta = theta / 2; + + phi = stroker->angle_in + theta; + + thcos = FT_Cos( theta ); + sigma = FT_MulFix( stroker->miter_limit, thcos ); + + if ( sigma < 0x10000L ) + { + FT_Vector_From_Polar( &delta, stroker->radius, + stroker->angle_out + rotate ); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + border->movable = 0; + } + else + { + length = FT_DivFix( stroker->radius, thcos ); + + FT_Vector_From_Polar( &delta, length, phi + rotate ); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + } + + error = ft_stroke_border_lineto( border, &delta, 0 ); + + return error; + } + + + /* process an outside corner, i.e. compute bevel/miter/round */ + static FT_Error + ft_stroker_outside( FT_Stroker stroker, + FT_Int side ) + { + FT_StrokeBorder border = stroker->borders + side; + FT_Error error; + FT_Angle rotate; + + + if ( stroker->line_join == FT_STROKER_LINEJOIN_ROUND ) + { + error = ft_stroker_arcto( stroker, side ); + } + else + { + /* this is a mitered or beveled corner */ + FT_Fixed sigma, radius = stroker->radius; + FT_Angle theta, phi; + FT_Fixed thcos; + FT_Bool miter; + + + rotate = FT_SIDE_TO_ROTATE( side ); + miter = FT_BOOL( stroker->line_join == FT_STROKER_LINEJOIN_MITER ); + + theta = FT_Angle_Diff( stroker->angle_in, stroker->angle_out ); + if ( theta == FT_ANGLE_PI ) + { + theta = rotate; + phi = stroker->angle_in; + } + else + { + theta = theta / 2; + phi = stroker->angle_in + theta + rotate; + } + + thcos = FT_Cos( theta ); + sigma = FT_MulFix( stroker->miter_limit, thcos ); + + if ( sigma >= 0x10000L ) + miter = 0; + + if ( miter ) /* this is a miter (broken angle) */ + { + FT_Vector middle, delta; + FT_Fixed length; + + + /* compute middle point */ + FT_Vector_From_Polar( &middle, + FT_MulFix( radius, stroker->miter_limit ), + phi ); + middle.x += stroker->center.x; + middle.y += stroker->center.y; + + /* compute first angle point */ + length = FT_MulFix( radius, + FT_DivFix( 0x10000L - sigma, + ft_pos_abs( FT_Sin( theta ) ) ) ); + + FT_Vector_From_Polar( &delta, length, phi + rotate ); + delta.x += middle.x; + delta.y += middle.y; + + error = ft_stroke_border_lineto( border, &delta, 0 ); + if ( error ) + goto Exit; + + /* compute second angle point */ + FT_Vector_From_Polar( &delta, length, phi - rotate ); + delta.x += middle.x; + delta.y += middle.y; + + error = ft_stroke_border_lineto( border, &delta, 0 ); + if ( error ) + goto Exit; + + /* finally, add a movable end point */ + FT_Vector_From_Polar( &delta, radius, stroker->angle_out + rotate ); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + error = ft_stroke_border_lineto( border, &delta, 1 ); + } + + else /* this is a bevel (intersection) */ + { + FT_Fixed length; + FT_Vector delta; + + + length = FT_DivFix( stroker->radius, thcos ); + + FT_Vector_From_Polar( &delta, length, phi ); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + error = ft_stroke_border_lineto( border, &delta, 0 ); + if (error) goto Exit; + + /* now add end point */ + FT_Vector_From_Polar( &delta, stroker->radius, + stroker->angle_out + rotate ); + delta.x += stroker->center.x; + delta.y += stroker->center.y; + + error = ft_stroke_border_lineto( border, &delta, 1 ); + } + } + + Exit: + return error; + } + + + static FT_Error + ft_stroker_process_corner( FT_Stroker stroker ) + { + FT_Error error = 0; + FT_Angle turn; + FT_Int inside_side; + + + turn = FT_Angle_Diff( stroker->angle_in, stroker->angle_out ); + + /* no specific corner processing is required if the turn is 0 */ + if ( turn == 0 ) + goto Exit; + + /* when we turn to the right, the inside side is 0 */ + inside_side = 0; + + /* otherwise, the inside side is 1 */ + if ( turn < 0 ) + inside_side = 1; + + /* process the inside side */ + error = ft_stroker_inside( stroker, inside_side ); + if ( error ) + goto Exit; + + /* process the outside side */ + error = ft_stroker_outside( stroker, 1 - inside_side ); + + Exit: + return error; + } + + + /* add two points to the left and right borders corresponding to the */ + /* start of the subpath.. */ + static FT_Error + ft_stroker_subpath_start( FT_Stroker stroker, + FT_Angle start_angle ) + { + FT_Vector delta; + FT_Vector point; + FT_Error error; + FT_StrokeBorder border; + + + FT_Vector_From_Polar( &delta, stroker->radius, + start_angle + FT_ANGLE_PI2 ); + + point.x = stroker->center.x + delta.x; + point.y = stroker->center.y + delta.y; + + border = stroker->borders; + error = ft_stroke_border_moveto( border, &point ); + if ( error ) + goto Exit; + + point.x = stroker->center.x - delta.x; + point.y = stroker->center.y - delta.y; + + border++; + error = ft_stroke_border_moveto( border, &point ); + + /* save angle for last cap */ + stroker->subpath_angle = start_angle; + stroker->first_point = 0; + + Exit: + return error; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_LineTo( FT_Stroker stroker, + FT_Vector* to ) + { + FT_Error error = 0; + FT_StrokeBorder border; + FT_Vector delta; + FT_Angle angle; + FT_Int side; + + delta.x = to->x - stroker->center.x; + delta.y = to->y - stroker->center.y; + + angle = FT_Atan2( delta.x, delta.y ); + FT_Vector_From_Polar( &delta, stroker->radius, angle + FT_ANGLE_PI2 ); + + /* process corner if necessary */ + if ( stroker->first_point ) + { + /* This is the first segment of a subpath. We need to */ + /* add a point to each border at their respective starting */ + /* point locations. */ + error = ft_stroker_subpath_start( stroker, angle ); + if ( error ) + goto Exit; + } + else + { + /* process the current corner */ + stroker->angle_out = angle; + error = ft_stroker_process_corner( stroker ); + if ( error ) + goto Exit; + } + + /* now add a line segment to both the "inside" and "outside" paths */ + + for ( border = stroker->borders, side = 1; side >= 0; side--, border++ ) + { + FT_Vector point; + + + point.x = to->x + delta.x; + point.y = to->y + delta.y; + + error = ft_stroke_border_lineto( border, &point, 1 ); + if ( error ) + goto Exit; + + delta.x = -delta.x; + delta.y = -delta.y; + } + + stroker->angle_in = angle; + stroker->center = *to; + + Exit: + return error; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_ConicTo( FT_Stroker stroker, + FT_Vector* control, + FT_Vector* to ) + { + FT_Error error = 0; + FT_Vector bez_stack[34]; + FT_Vector* arc; + FT_Vector* limit = bez_stack + 30; + FT_Angle start_angle; + FT_Bool first_arc = 1; + + + arc = bez_stack; + arc[0] = *to; + arc[1] = *control; + arc[2] = stroker->center; + + while ( arc >= bez_stack ) + { + FT_Angle angle_in, angle_out; + + + angle_in = angle_out = 0; /* remove compiler warnings */ + + if ( arc < limit && + !ft_conic_is_small_enough( arc, &angle_in, &angle_out ) ) + { + ft_conic_split( arc ); + arc += 2; + continue; + } + + if ( first_arc ) + { + first_arc = 0; + + start_angle = angle_in; + + /* process corner if necessary */ + if ( stroker->first_point ) + error = ft_stroker_subpath_start( stroker, start_angle ); + else + { + stroker->angle_out = start_angle; + error = ft_stroker_process_corner( stroker ); + } + } + + /* the arc's angle is small enough; we can add it directly to each */ + /* border */ + { + FT_Vector ctrl, end; + FT_Angle theta, phi, rotate; + FT_Fixed length; + FT_Int side; + + + theta = FT_Angle_Diff( angle_in, angle_out ) / 2; + phi = angle_in + theta; + length = FT_DivFix( stroker->radius, FT_Cos( theta ) ); + + for ( side = 0; side <= 1; side++ ) + { + rotate = FT_SIDE_TO_ROTATE( side ); + + /* compute control point */ + FT_Vector_From_Polar( &ctrl, length, phi + rotate ); + ctrl.x += arc[1].x; + ctrl.y += arc[1].y; + + /* compute end point */ + FT_Vector_From_Polar( &end, stroker->radius, angle_out + rotate ); + end.x += arc[0].x; + end.y += arc[0].y; + + error = ft_stroke_border_conicto( stroker->borders + side, + &ctrl, &end ); + if ( error ) + goto Exit; + } + } + + arc -= 2; + + if ( arc < bez_stack ) + stroker->angle_in = angle_out; + } + + stroker->center = *to; + + Exit: + return error; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_CubicTo( FT_Stroker stroker, + FT_Vector* control1, + FT_Vector* control2, + FT_Vector* to ) + { + FT_Error error = 0; + FT_Vector bez_stack[37]; + FT_Vector* arc; + FT_Vector* limit = bez_stack + 32; + FT_Angle start_angle; + FT_Bool first_arc = 1; + + + arc = bez_stack; + arc[0] = *to; + arc[1] = *control2; + arc[2] = *control1; + arc[3] = stroker->center; + + while ( arc >= bez_stack ) + { + FT_Angle angle_in, angle_mid, angle_out; + + + /* remove compiler warnings */ + angle_in = angle_out = angle_mid = 0; + + if ( arc < limit && + !ft_cubic_is_small_enough( arc, &angle_in, + &angle_mid, &angle_out ) ) + { + ft_cubic_split( arc ); + arc += 3; + continue; + } + + if ( first_arc ) + { + first_arc = 0; + + /* process corner if necessary */ + start_angle = angle_in; + + if ( stroker->first_point ) + error = ft_stroker_subpath_start( stroker, start_angle ); + else + { + stroker->angle_out = start_angle; + error = ft_stroker_process_corner( stroker ); + } + if ( error ) + goto Exit; + } + + /* the arc's angle is small enough; we can add it directly to each */ + /* border */ + { + FT_Vector ctrl1, ctrl2, end; + FT_Angle theta1, phi1, theta2, phi2, rotate; + FT_Fixed length1, length2; + FT_Int side; + + + theta1 = ft_pos_abs( angle_mid - angle_in ) / 2; + theta2 = ft_pos_abs( angle_out - angle_mid ) / 2; + phi1 = (angle_mid + angle_in ) / 2; + phi2 = (angle_mid + angle_out ) / 2; + length1 = FT_DivFix( stroker->radius, FT_Cos( theta1 ) ); + length2 = FT_DivFix( stroker->radius, FT_Cos(theta2) ); + + for ( side = 0; side <= 1; side++ ) + { + rotate = FT_SIDE_TO_ROTATE( side ); + + /* compute control points */ + FT_Vector_From_Polar( &ctrl1, length1, phi1 + rotate ); + ctrl1.x += arc[2].x; + ctrl1.y += arc[2].y; + + FT_Vector_From_Polar( &ctrl2, length2, phi2 + rotate ); + ctrl2.x += arc[1].x; + ctrl2.y += arc[1].y; + + /* compute end point */ + FT_Vector_From_Polar( &end, stroker->radius, angle_out + rotate ); + end.x += arc[0].x; + end.y += arc[0].y; + + error = ft_stroke_border_cubicto( stroker->borders + side, + &ctrl1, &ctrl2, &end ); + if ( error ) + goto Exit; + } + } + + arc -= 3; + if ( arc < bez_stack ) + stroker->angle_in = angle_out; + } + + stroker->center = *to; + + Exit: + return error; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_BeginSubPath( FT_Stroker stroker, + FT_Vector* to, + FT_Bool open ) + { + /* We cannot process the first point, because there is not enough */ + /* information regarding its corner/cap. The latter will be processed */ + /* in the "end_subpath" routine. */ + /* */ + stroker->first_point = 1; + stroker->center = *to; + stroker->subpath_open = open; + + /* record the subpath start point index for each border */ + stroker->subpath_start = *to; + return 0; + } + + + static FT_Error + ft_stroker_add_reverse_left( FT_Stroker stroker, + FT_Bool open ) + { + FT_StrokeBorder right = stroker->borders + 0; + FT_StrokeBorder left = stroker->borders + 1; + FT_Int new_points; + FT_Error error = 0; + + + FT_ASSERT( left->start >= 0 ); + + new_points = left->num_points - left->start; + if ( new_points > 0 ) + { + error = ft_stroke_border_grow( right, (FT_UInt)new_points ); + if ( error ) + goto Exit; + + { + FT_Vector* dst_point = right->points + right->num_points; + FT_Byte* dst_tag = right->tags + right->num_points; + FT_Vector* src_point = left->points + left->num_points - 1; + FT_Byte* src_tag = left->tags + left->num_points - 1; + + while ( src_point >= left->points + left->start ) + { + *dst_point = *src_point; + *dst_tag = *src_tag; + + if ( open ) + dst_tag[0] &= ~( FT_STROKE_TAG_BEGIN | FT_STROKE_TAG_END ); + else + { + /* switch begin/end tags if necessary.. */ + if ( dst_tag[0] & ( FT_STROKE_TAG_BEGIN | FT_STROKE_TAG_END ) ) + dst_tag[0] ^= ( FT_STROKE_TAG_BEGIN | FT_STROKE_TAG_END ); + } + + src_point--; + src_tag--; + dst_point++; + dst_tag++; + } + } + + left->num_points = left->start; + right->num_points += new_points; + + right->movable = 0; + left->movable = 0; + } + + Exit: + return error; + } + + + /* there's a lot of magic in this function! */ + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_EndSubPath( FT_Stroker stroker ) + { + FT_Error error = 0; + + if ( stroker->subpath_open ) + { + FT_StrokeBorder right = stroker->borders; + + /* All right, this is an opened path, we need to add a cap between */ + /* right & left, add the reverse of left, then add a final cap */ + /* between left & right. */ + error = ft_stroker_cap( stroker, stroker->angle_in, 0 ); + if ( error ) + goto Exit; + + /* add reversed points from "left" to "right" */ + error = ft_stroker_add_reverse_left( stroker, 1 ); + if ( error ) + goto Exit; + + /* now add the final cap */ + stroker->center = stroker->subpath_start; + error = ft_stroker_cap( stroker, + stroker->subpath_angle + FT_ANGLE_PI, 0 ); + if ( error ) + goto Exit; + + /* Now end the right subpath accordingly. The left one is */ + /* rewind and doesn't need further processing. */ + ft_stroke_border_close( right ); + } + else + { + FT_Angle turn; + FT_Int inside_side; + + /* close the path if needed */ + if ( stroker->center.x != stroker->subpath_start.x || + stroker->center.y != stroker->subpath_start.y ) + { + error = FT_Stroker_LineTo( stroker, &stroker->subpath_start ); + if ( error ) + goto Exit; + } + + /* process the corner */ + stroker->angle_out = stroker->subpath_angle; + turn = FT_Angle_Diff( stroker->angle_in, + stroker->angle_out ); + + /* no specific corner processing is required if the turn is 0 */ + if ( turn != 0 ) + { + /* when we turn to the right, the inside side is 0 */ + inside_side = 0; + + /* otherwise, the inside side is 1 */ + if ( turn < 0 ) + inside_side = 1; + + /* IMPORTANT: WE DO NOT PROCESS THE INSIDE BORDER HERE! */ + /* process the inside side */ + /* error = ft_stroker_inside( stroker, inside_side ); */ + /* if ( error ) */ + /* goto Exit; */ + + /* process the outside side */ + error = ft_stroker_outside( stroker, 1 - inside_side ); + if ( error ) + goto Exit; + } + + /* then end our two subpaths */ + ft_stroke_border_close( stroker->borders + 0 ); + ft_stroke_border_close( stroker->borders + 1 ); + } + + Exit: + return error; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_GetBorderCounts( FT_Stroker stroker, + FT_StrokerBorder border, + FT_UInt *anum_points, + FT_UInt *anum_contours ) + { + FT_UInt num_points = 0, num_contours = 0; + FT_Error error; + + + if ( !stroker || border > 1 ) + { + error = FT_Err_Invalid_Argument; + goto Exit; + } + + error = ft_stroke_border_get_counts( stroker->borders + border, + &num_points, &num_contours ); + Exit: + if ( anum_points ) + *anum_points = num_points; + + if ( anum_contours ) + *anum_contours = num_contours; + + return error; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_GetCounts( FT_Stroker stroker, + FT_UInt *anum_points, + FT_UInt *anum_contours ) + { + FT_UInt count1, count2, num_points = 0; + FT_UInt count3, count4, num_contours = 0; + FT_Error error; + + + error = ft_stroke_border_get_counts( stroker->borders + 0, + &count1, &count2 ); + if ( error ) + goto Exit; + + error = ft_stroke_border_get_counts( stroker->borders + 1, + &count3, &count4 ); + if ( error ) + goto Exit; + + num_points = count1 + count3; + num_contours = count2 + count4; + + Exit: + *anum_points = num_points; + *anum_contours = num_contours; + return error; + } + + + FT_EXPORT_DEF( void ) + FT_Stroker_ExportBorder( FT_Stroker stroker, + FT_StrokerBorder border, + FT_Outline* outline ) + { + if ( border == FT_STROKER_BORDER_LEFT || + border == FT_STROKER_BORDER_RIGHT ) + { + FT_StrokeBorder sborder = & stroker->borders[border]; + + + if ( sborder->valid ) + ft_stroke_border_export( sborder, outline ); + } + } + + + FT_EXPORT_DEF( void ) + FT_Stroker_Export( FT_Stroker stroker, + FT_Outline* outline ) + { + FT_Stroker_ExportBorder( stroker, FT_STROKER_BORDER_LEFT, outline ); + FT_Stroker_ExportBorder( stroker, FT_STROKER_BORDER_RIGHT, outline ); + } + + + /* + * The following is very similar to FT_Outline_Decompose, except + * that we do support opened paths, and do not scale the outline. + */ + FT_EXPORT_DEF( FT_Error ) + FT_Stroker_ParseOutline( FT_Stroker stroker, + FT_Outline* outline, + FT_Bool opened ) + { + 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 */ + + + if ( !outline || !stroker ) + return FT_Err_Invalid_Argument; + + FT_Stroker_Rewind( stroker ); + + 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_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 = FT_Stroker_BeginSubPath( stroker, &v_start, opened ); + 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 = point->x; + vec.y = point->y; + + error = FT_Stroker_LineTo( stroker, &vec ); + if ( error ) + goto Exit; + continue; + } + + case FT_CURVE_TAG_CONIC: /* consume conic arcs */ + v_control.x = point->x; + v_control.y = point->y; + + Do_Conic: + if ( point < limit ) + { + FT_Vector vec; + FT_Vector v_middle; + + + point++; + tags++; + tag = FT_CURVE_TAG( tags[0] ); + + vec = point[0]; + + if ( tag == FT_CURVE_TAG_ON ) + { + error = FT_Stroker_ConicTo( stroker, &v_control, &vec ); + 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 = FT_Stroker_ConicTo( stroker, &v_control, &v_middle ); + if ( error ) + goto Exit; + + v_control = vec; + goto Do_Conic; + } + + error = FT_Stroker_ConicTo( stroker, &v_control, &v_start ); + 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 = point[-2]; + vec2 = point[-1]; + + if ( point <= limit ) + { + FT_Vector vec; + + + vec = point[0]; + + error = FT_Stroker_CubicTo( stroker, &vec1, &vec2, &vec ); + if ( error ) + goto Exit; + continue; + } + + error = FT_Stroker_CubicTo( stroker, &vec1, &vec2, &v_start ); + goto Close; + } + } + } + + Close: + if ( error ) + goto Exit; + + error = FT_Stroker_EndSubPath( stroker ); + if ( error ) + goto Exit; + + first = last + 1; + } + + return 0; + + Exit: + return error; + + Invalid_Outline: + return FT_Err_Invalid_Outline; + } + + + extern const FT_Glyph_Class ft_outline_glyph_class; + + + FT_EXPORT_DEF( FT_Error ) + FT_Glyph_Stroke( FT_Glyph *pglyph, + FT_Stroker stroker, + FT_Bool destroy ) + { + FT_Error error = FT_Err_Invalid_Argument; + FT_Glyph glyph = NULL; + + + if ( pglyph == NULL ) + goto Exit; + + glyph = *pglyph; + if ( glyph == NULL || glyph->clazz != &ft_outline_glyph_class ) + goto Exit; + + { + FT_Glyph copy; + + + error = FT_Glyph_Copy( glyph, © ); + if ( error ) + goto Exit; + + glyph = copy; + } + + { + FT_OutlineGlyph oglyph = (FT_OutlineGlyph) glyph; + FT_Outline* outline = &oglyph->outline; + FT_UInt num_points, num_contours; + + + error = FT_Stroker_ParseOutline( stroker, outline, 0 ); + if ( error ) + goto Fail; + + (void)FT_Stroker_GetCounts( stroker, &num_points, &num_contours ); + + FT_Outline_Done( glyph->library, outline ); + + error = FT_Outline_New( glyph->library, + num_points, num_contours, outline ); + if ( error ) + goto Fail; + + outline->n_points = 0; + outline->n_contours = 0; + + FT_Stroker_Export( stroker, outline ); + } + + if ( destroy ) + FT_Done_Glyph( *pglyph ); + + *pglyph = glyph; + goto Exit; + + Fail: + FT_Done_Glyph( glyph ); + glyph = NULL; + + if ( !destroy ) + *pglyph = NULL; + + Exit: + return error; + } + + + FT_EXPORT_DEF( FT_Error ) + FT_Glyph_StrokeBorder( FT_Glyph *pglyph, + FT_Stroker stroker, + FT_Bool inside, + FT_Bool destroy ) + { + FT_Error error = FT_Err_Invalid_Argument; + FT_Glyph glyph = NULL; + + + if ( pglyph == NULL ) + goto Exit; + + glyph = *pglyph; + if ( glyph == NULL || glyph->clazz != &ft_outline_glyph_class ) + goto Exit; + + { + FT_Glyph copy; + + + error = FT_Glyph_Copy( glyph, © ); + if ( error ) + goto Exit; + + glyph = copy; + } + + { + FT_OutlineGlyph oglyph = (FT_OutlineGlyph) glyph; + FT_StrokerBorder border; + FT_Outline* outline = &oglyph->outline; + FT_UInt num_points, num_contours; + + + border = FT_Outline_GetOutsideBorder( outline ); + if ( inside ) + { + if ( border == FT_STROKER_BORDER_LEFT ) + border = FT_STROKER_BORDER_RIGHT; + else + border = FT_STROKER_BORDER_LEFT; + } + + error = FT_Stroker_ParseOutline( stroker, outline, 0 ); + if ( error ) + goto Fail; + + (void)FT_Stroker_GetBorderCounts( stroker, border, + &num_points, &num_contours ); + + FT_Outline_Done( glyph->library, outline ); + + error = FT_Outline_New( glyph->library, + num_points, + num_contours, + outline ); + if ( error ) + goto Fail; + + outline->n_points = 0; + outline->n_contours = 0; + + FT_Stroker_ExportBorder( stroker, border, outline ); + } + + if ( destroy ) + FT_Done_Glyph( *pglyph ); + + *pglyph = glyph; + goto Exit; + + Fail: + FT_Done_Glyph( glyph ); + glyph = NULL; + + if ( !destroy ) + *pglyph = NULL; + + Exit: + return error; + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftsynth.c b/nx-X11/extras/freetype2/src/base/ftsynth.c new file mode 100644 index 000000000..cee36822f --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftsynth.c @@ -0,0 +1,287 @@ +/***************************************************************************/ +/* */ +/* ftsynth.c */ +/* */ +/* FreeType synthesizing code for emboldening and slanting (body). */ +/* */ +/* Copyright 2000-2001, 2002, 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_CALC_H +#include FT_OUTLINE_H +#include FT_TRIGONOMETRY_H +#include FT_SYNTHESIS_H + + +#define FT_BOLD_THRESHOLD 0x0100 + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** EXPERIMENTAL OBLIQUING SUPPORT ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + FT_EXPORT_DEF( void ) + FT_GlyphSlot_Oblique( FT_GlyphSlot slot ) + { + FT_Matrix transform; + FT_Outline* outline = &slot->outline; + + + /* only oblique outline glyphs */ + if ( slot->format != FT_GLYPH_FORMAT_OUTLINE ) + return; + + /* we don't touch the advance width */ + + /* For italic, simply apply a shear transform, with an angle */ + /* of about 12 degrees. */ + + transform.xx = 0x10000L; + transform.yx = 0x00000L; + + transform.xy = 0x06000L; + transform.yy = 0x10000L; + + FT_Outline_Transform( outline, &transform ); + } + + + /*************************************************************************/ + /*************************************************************************/ + /**** ****/ + /**** EXPERIMENTAL EMBOLDENING/OUTLINING SUPPORT ****/ + /**** ****/ + /*************************************************************************/ + /*************************************************************************/ + + + + static int + ft_test_extrema( FT_Outline* outline, + int n ) + { + FT_Vector *prev, *cur, *next; + FT_Pos product; + FT_Int c, first, last; + + + /* we need to compute the `previous' and `next' point */ + /* for these extrema. */ + cur = outline->points + n; + prev = cur - 1; + next = cur + 1; + + first = 0; + for ( c = 0; c < outline->n_contours; c++ ) + { + last = outline->contours[c]; + + if ( n == first ) + prev = outline->points + last; + + if ( n == last ) + next = outline->points + first; + + first = last + 1; + } + + product = FT_MulDiv( cur->x - prev->x, /* in.x */ + next->y - cur->y, /* out.y */ + 0x40 ) + - + FT_MulDiv( cur->y - prev->y, /* in.y */ + next->x - cur->x, /* out.x */ + 0x40 ); + + if ( product ) + product = product > 0 ? 1 : -1; + + return product; + } + + + /* Compute the orientation of path filling. It differs between TrueType */ + /* and Type1 formats. We could use the `FT_OUTLINE_REVERSE_FILL' flag, */ + /* but it is better to re-compute it directly (it seems that this flag */ + /* isn't correctly set for some weird composite glyphs currently). */ + /* */ + /* We do this by computing bounding box points, and computing their */ + /* curvature. */ + /* */ + /* The function returns either 1 or -1. */ + /* */ + static int + ft_get_orientation( FT_Outline* outline ) + { + FT_BBox box; + FT_BBox indices; + int n, last; + + + indices.xMin = -1; + indices.yMin = -1; + indices.xMax = -1; + indices.yMax = -1; + + box.xMin = box.yMin = 32767; + box.xMax = box.yMax = -32768; + + /* is it empty ? */ + if ( outline->n_contours < 1 ) + return 1; + + last = outline->contours[outline->n_contours - 1]; + + for ( n = 0; n <= last; n++ ) + { + FT_Pos x, y; + + + x = outline->points[n].x; + if ( x < box.xMin ) + { + box.xMin = x; + indices.xMin = n; + } + if ( x > box.xMax ) + { + box.xMax = x; + indices.xMax = n; + } + + y = outline->points[n].y; + if ( y < box.yMin ) + { + box.yMin = y; + indices.yMin = n; + } + if ( y > box.yMax ) + { + box.yMax = y; + indices.yMax = n; + } + } + + /* test orientation of the xmin */ + n = ft_test_extrema( outline, indices.xMin ); + if ( n ) + goto Exit; + + n = ft_test_extrema( outline, indices.yMin ); + if ( n ) + goto Exit; + + n = ft_test_extrema( outline, indices.xMax ); + if ( n ) + goto Exit; + + n = ft_test_extrema( outline, indices.yMax ); + if ( !n ) + n = 1; + + Exit: + return n; + } + + + FT_EXPORT_DEF( void ) + FT_GlyphSlot_Embolden( FT_GlyphSlot slot ) + { + FT_Vector* points; + FT_Vector v_prev, v_first, v_next, v_cur; + FT_Pos distance; + FT_Outline* outline = &slot->outline; + FT_Face face = FT_SLOT_FACE( slot ); + FT_Angle rotate, angle_in, angle_out; + FT_Int c, n, first, orientation; + + + /* only embolden outline glyph images */ + if ( slot->format != FT_GLYPH_FORMAT_OUTLINE ) + return; + + /* compute control distance */ + distance = FT_MulFix( face->units_per_EM / 60, + face->size->metrics.y_scale ); + + orientation = ft_get_orientation( outline ); + rotate = FT_ANGLE_PI2*orientation; + + points = outline->points; + + first = 0; + for ( c = 0; c < outline->n_contours; c++ ) + { + int last = outline->contours[c]; + + + v_first = points[first]; + v_prev = points[last]; + v_cur = v_first; + + for ( n = first; n <= last; n++ ) + { + FT_Pos d; + FT_Vector in, out; + FT_Fixed scale; + FT_Angle angle_diff; + + + if ( n < last ) v_next = points[n + 1]; + else v_next = v_first; + + /* compute the in and out vectors */ + in.x = v_cur.x - v_prev.x; + in.y = v_cur.y - v_prev.y; + + out.x = v_next.x - v_cur.x; + out.y = v_next.y - v_cur.y; + + angle_in = FT_Atan2( in.x, in.y ); + angle_out = FT_Atan2( out.x, out.y ); + angle_diff = FT_Angle_Diff( angle_in, angle_out ); + scale = FT_Cos( angle_diff/2 ); + + if ( scale < 0x400L && scale > -0x400L ) + { + if ( scale >= 0 ) + scale = 0x400L; + else + scale = -0x400L; + } + + d = FT_DivFix( distance, scale ); + + FT_Vector_From_Polar( &in, d, angle_in + angle_diff/2 - rotate ); + + outline->points[n].x = v_cur.x + distance + in.x; + outline->points[n].y = v_cur.y + distance + in.y; + + v_prev = v_cur; + v_cur = v_next; + } + + first = last + 1; + } + + slot->metrics.horiAdvance = + ( slot->metrics.horiAdvance + distance*4 ) & ~63; + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftsystem.c b/nx-X11/extras/freetype2/src/base/ftsystem.c new file mode 100644 index 000000000..2365de257 --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftsystem.c @@ -0,0 +1,303 @@ +/***************************************************************************/ +/* */ +/* ftsystem.c */ +/* */ +/* ANSI-specific FreeType low-level system interface (body). */ +/* */ +/* Copyright 1996-2001, 2002 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. */ +/* */ +/***************************************************************************/ + + /*************************************************************************/ + /* */ + /* This file contains the default interface used by FreeType to access */ + /* low-level, i.e. memory management, i/o access as well as thread */ + /* synchronisation. It can be replaced by user-specific routines if */ + /* necessary. */ + /* */ + /*************************************************************************/ + + +#include <ft2build.h> +#include FT_CONFIG_CONFIG_H +#include FT_INTERNAL_DEBUG_H +#include FT_SYSTEM_H +#include FT_ERRORS_H +#include FT_TYPES_H + +#include <stdio.h> +#include <stdlib.h> + + + /*************************************************************************/ + /* */ + /* MEMORY MANAGEMENT INTERFACE */ + /* */ + /*************************************************************************/ + + /*************************************************************************/ + /* */ + /* It is not necessary to do any error checking for the */ + /* allocation-related functions. This will be done by the higher level */ + /* routines like FT_Alloc() or FT_Realloc(). */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_alloc */ + /* */ + /* <Description> */ + /* The memory allocation function. */ + /* */ + /* <Input> */ + /* memory :: A pointer to the memory object. */ + /* */ + /* size :: The requested size in bytes. */ + /* */ + /* <Return> */ + /* The address of newly allocated block. */ + /* */ + FT_CALLBACK_DEF( void* ) + ft_alloc( FT_Memory memory, + long size ) + { + FT_UNUSED( memory ); + + return malloc( size ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_realloc */ + /* */ + /* <Description> */ + /* The memory reallocation function. */ + /* */ + /* <Input> */ + /* memory :: A pointer to the memory object. */ + /* */ + /* cur_size :: The current size of the allocated memory block. */ + /* */ + /* new_size :: The newly requested size in bytes. */ + /* */ + /* block :: The current address of the block in memory. */ + /* */ + /* <Return> */ + /* The address of the reallocated memory block. */ + /* */ + FT_CALLBACK_DEF( void* ) + ft_realloc( FT_Memory memory, + long cur_size, + long new_size, + void* block ) + { + FT_UNUSED( memory ); + FT_UNUSED( cur_size ); + + return realloc( block, new_size ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_free */ + /* */ + /* <Description> */ + /* The memory release function. */ + /* */ + /* <Input> */ + /* memory :: A pointer to the memory object. */ + /* */ + /* block :: The address of block in memory to be freed. */ + /* */ + FT_CALLBACK_DEF( void ) + ft_free( FT_Memory memory, + void* block ) + { + FT_UNUSED( memory ); + + free( block ); + } + + + /*************************************************************************/ + /* */ + /* RESOURCE MANAGEMENT INTERFACE */ + /* */ + /*************************************************************************/ + + + /*************************************************************************/ + /* */ + /* 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_io + + /* We use the macro STREAM_FILE for convenience to extract the */ + /* system-specific stream handle from a given FreeType stream object */ +#define STREAM_FILE( stream ) ( (FILE*)stream->descriptor.pointer ) + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_ansi_stream_close */ + /* */ + /* <Description> */ + /* The function to close a stream. */ + /* */ + /* <Input> */ + /* stream :: A pointer to the stream object. */ + /* */ + FT_CALLBACK_DEF( void ) + ft_ansi_stream_close( FT_Stream stream ) + { + fclose( STREAM_FILE( stream ) ); + + stream->descriptor.pointer = NULL; + stream->size = 0; + stream->base = 0; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_ansi_stream_io */ + /* */ + /* <Description> */ + /* The function to open a stream. */ + /* */ + /* <Input> */ + /* stream :: A pointer to the stream object. */ + /* */ + /* offset :: The position in the data stream to start reading. */ + /* */ + /* buffer :: The address of buffer to store the read data. */ + /* */ + /* count :: The number of bytes to read from the stream. */ + /* */ + /* <Return> */ + /* The number of bytes actually read. */ + /* */ + FT_CALLBACK_DEF( unsigned long ) + ft_ansi_stream_io( FT_Stream stream, + unsigned long offset, + unsigned char* buffer, + unsigned long count ) + { + FILE* file; + + + file = STREAM_FILE( stream ); + + fseek( file, offset, SEEK_SET ); + + return (unsigned long)fread( buffer, 1, count, file ); + } + + + /* documentation is in ftobjs.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Stream_Open( FT_Stream stream, + const char* filepathname ) + { + FILE* file; + + + if ( !stream ) + return FT_Err_Invalid_Stream_Handle; + + file = fopen( filepathname, "rb" ); + if ( !file ) + { + FT_ERROR(( "FT_Stream_Open:" )); + FT_ERROR(( " could not open `%s'\n", filepathname )); + + return FT_Err_Cannot_Open_Resource; + } + + fseek( file, 0, SEEK_END ); + stream->size = ftell( file ); + fseek( file, 0, SEEK_SET ); + + stream->descriptor.pointer = file; + stream->pathname.pointer = (char*)filepathname; + stream->pos = 0; + + stream->read = ft_ansi_stream_io; + stream->close = ft_ansi_stream_close; + + FT_TRACE1(( "FT_Stream_Open:" )); + FT_TRACE1(( " opened `%s' (%d bytes) successfully\n", + filepathname, stream->size )); + + return FT_Err_Ok; + } + + +#ifdef FT_DEBUG_MEMORY + + extern FT_Int + ft_mem_debug_init( FT_Memory memory ); + + extern void + ft_mem_debug_done( FT_Memory memory ); + +#endif + + + /* documentation is in ftobjs.h */ + + FT_EXPORT_DEF( FT_Memory ) + FT_New_Memory( void ) + { + FT_Memory memory; + + + memory = (FT_Memory)malloc( sizeof ( *memory ) ); + if ( memory ) + { + memory->user = 0; + memory->alloc = ft_alloc; + memory->realloc = ft_realloc; + memory->free = ft_free; +#ifdef FT_DEBUG_MEMORY + ft_mem_debug_init( memory ); +#endif + } + + return memory; + } + + + /* documentation is in ftobjs.h */ + + FT_EXPORT_DEF( void ) + FT_Done_Memory( FT_Memory memory ) + { +#ifdef FT_DEBUG_MEMORY + ft_mem_debug_done( memory ); +#endif + memory->free( memory, memory ); + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/fttrigon.c b/nx-X11/extras/freetype2/src/base/fttrigon.c new file mode 100644 index 000000000..5347dd852 --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/fttrigon.c @@ -0,0 +1,499 @@ +/***************************************************************************/ +/* */ +/* fttrigon.c */ +/* */ +/* FreeType trigonometric functions (body). */ +/* */ +/* Copyright 2001, 2002, 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_TRIGONOMETRY_H + + + /* the following is 0.2715717684432231 * 2^30 */ +#define FT_TRIG_COSCALE 0x11616E8EUL + + /* this table was generated for FT_PI = 180L << 16, i.e. degrees */ +#define FT_TRIG_MAX_ITERS 23 + + static const FT_Fixed + ft_trig_arctan_table[24] = + { + 4157273L, 2949120L, 1740967L, 919879L, 466945L, 234379L, 117304L, + 58666L, 29335L, 14668L, 7334L, 3667L, 1833L, 917L, 458L, 229L, 115L, + 57L, 29L, 14L, 7L, 4L, 2L, 1L + }; + + /* the Cordic shrink factor, multiplied by 2^32 */ +#define FT_TRIG_SCALE 1166391785UL /* 0x4585BA38UL */ + + +#ifdef FT_CONFIG_HAS_INT64 + + /* multiply a given value by the CORDIC shrink factor */ + static FT_Fixed + ft_trig_downscale( FT_Fixed val ) + { + FT_Fixed s; + FT_Int64 v; + + + s = val; + val = ( val >= 0 ) ? val : -val; + + v = ( val * (FT_Int64)FT_TRIG_SCALE ) + 0x100000000UL; + val = (FT_Fixed)( v >> 32 ); + + return ( s >= 0 ) ? val : -val; + } + +#else /* !FT_CONFIG_HAS_INT64 */ + + /* multiply a given value by the CORDIC shrink factor */ + static FT_Fixed + ft_trig_downscale( FT_Fixed val ) + { + FT_Fixed s; + FT_UInt32 v1, v2, k1, k2, hi, lo1, lo2, lo3; + + + s = val; + val = ( val >= 0 ) ? val : -val; + + v1 = (FT_UInt32)val >> 16; + v2 = (FT_UInt32)val & 0xFFFFL; + + k1 = FT_TRIG_SCALE >> 16; /* constant */ + k2 = FT_TRIG_SCALE & 0xFFFFL; /* constant */ + + hi = k1 * v1; + lo1 = k1 * v2 + k2 * v1; /* can't overflow */ + + lo2 = ( k2 * v2 ) >> 16; + lo3 = ( lo1 >= lo2 ) ? lo1 : lo2; + lo1 += lo2; + + hi += lo1 >> 16; + if ( lo1 < lo3 ) + hi += 0x10000UL; + + val = (FT_Fixed)hi; + + return ( s >= 0 ) ? val : -val; + } + +#endif /* !FT_CONFIG_HAS_INT64 */ + + + static FT_Int + ft_trig_prenorm( FT_Vector* vec ) + { + FT_Fixed x, y, z; + FT_Int shift; + + + x = vec->x; + y = vec->y; + + z = ( ( x >= 0 ) ? x : - x ) | ( (y >= 0) ? y : -y ); + shift = 0; + + if ( z < ( 1L << 27 ) ) + { + do + { + shift++; + z <<= 1; + } while ( z < ( 1L << 27 ) ); + + vec->x = x << shift; + vec->y = y << shift; + } + else if ( z > ( 1L << 28 ) ) + { + do + { + shift++; + z >>= 1; + } while ( z > ( 1L << 28 ) ); + + vec->x = x >> shift; + vec->y = y >> shift; + shift = -shift; + } + return shift; + } + + + static void + ft_trig_pseudo_rotate( FT_Vector* vec, + FT_Angle theta ) + { + FT_Int i; + FT_Fixed x, y, xtemp; + const FT_Fixed *arctanptr; + + + x = vec->x; + y = vec->y; + + /* Get angle between -90 and 90 degrees */ + while ( theta <= -FT_ANGLE_PI2 ) + { + x = -x; + y = -y; + theta += FT_ANGLE_PI; + } + + while ( theta > FT_ANGLE_PI2 ) + { + x = -x; + y = -y; + theta -= FT_ANGLE_PI; + } + + /* Initial pseudorotation, with left shift */ + arctanptr = ft_trig_arctan_table; + + if ( theta < 0 ) + { + xtemp = x + ( y << 1 ); + y = y - ( x << 1 ); + x = xtemp; + theta += *arctanptr++; + } + else + { + xtemp = x - ( y << 1 ); + y = y + ( x << 1 ); + x = xtemp; + theta -= *arctanptr++; + } + + /* Subsequent pseudorotations, with right shifts */ + i = 0; + do + { + if ( theta < 0 ) + { + xtemp = x + ( y >> i ); + y = y - ( x >> i ); + x = xtemp; + theta += *arctanptr++; + } + else + { + xtemp = x - ( y >> i ); + y = y + ( x >> i ); + x = xtemp; + theta -= *arctanptr++; + } + } while ( ++i < FT_TRIG_MAX_ITERS ); + + vec->x = x; + vec->y = y; + } + + + static void + ft_trig_pseudo_polarize( FT_Vector* vec ) + { + FT_Fixed theta; + FT_Fixed yi, i; + FT_Fixed x, y; + const FT_Fixed *arctanptr; + + + x = vec->x; + y = vec->y; + + /* Get the vector into the right half plane */ + theta = 0; + if ( x < 0 ) + { + x = -x; + y = -y; + theta = 2 * FT_ANGLE_PI2; + } + + if ( y > 0 ) + theta = - theta; + + arctanptr = ft_trig_arctan_table; + + if ( y < 0 ) + { + /* Rotate positive */ + yi = y + ( x << 1 ); + x = x - ( y << 1 ); + y = yi; + theta -= *arctanptr++; /* Subtract angle */ + } + else + { + /* Rotate negative */ + yi = y - ( x << 1 ); + x = x + ( y << 1 ); + y = yi; + theta += *arctanptr++; /* Add angle */ + } + + i = 0; + do + { + if ( y < 0 ) + { + /* Rotate positive */ + yi = y + ( x >> i ); + x = x - ( y >> i ); + y = yi; + theta -= *arctanptr++; + } + else + { + /* Rotate negative */ + yi = y - ( x >> i ); + x = x + ( y >> i ); + y = yi; + theta += *arctanptr++; + } + } while ( ++i < FT_TRIG_MAX_ITERS ); + + /* round theta */ + if ( theta >= 0 ) + theta = FT_PAD_ROUND( theta, 32 ); + else + theta = - FT_PAD_ROUND( -theta, 32 ); + + vec->x = x; + vec->y = theta; + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_Cos( FT_Angle angle ) + { + FT_Vector v; + + + v.x = FT_TRIG_COSCALE >> 2; + v.y = 0; + ft_trig_pseudo_rotate( &v, angle ); + + return v.x / ( 1 << 12 ); + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_Sin( FT_Angle angle ) + { + return FT_Cos( FT_ANGLE_PI2 - angle ); + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_Tan( FT_Angle angle ) + { + FT_Vector v; + + + v.x = FT_TRIG_COSCALE >> 2; + v.y = 0; + ft_trig_pseudo_rotate( &v, angle ); + + return FT_DivFix( v.y, v.x ); + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( FT_Angle ) + FT_Atan2( FT_Fixed dx, + FT_Fixed dy ) + { + FT_Vector v; + + + if ( dx == 0 && dy == 0 ) + return 0; + + v.x = dx; + v.y = dy; + ft_trig_prenorm( &v ); + ft_trig_pseudo_polarize( &v ); + + return v.y; + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( void ) + FT_Vector_Unit( FT_Vector* vec, + FT_Angle angle ) + { + vec->x = FT_TRIG_COSCALE >> 2; + vec->y = 0; + ft_trig_pseudo_rotate( vec, angle ); + vec->x >>= 12; + vec->y >>= 12; + } + + + /* these macros return 0 for positive numbers, + and -1 for negative ones */ +#define FT_SIGN_LONG( x ) ( (x) >> ( FT_SIZEOF_LONG * 8 - 1 ) ) +#define FT_SIGN_INT( x ) ( (x) >> ( FT_SIZEOF_INT * 8 - 1 ) ) +#define FT_SIGN_INT32( x ) ( (x) >> 31 ) +#define FT_SIGN_INT16( x ) ( (x) >> 15 ) + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( void ) + FT_Vector_Rotate( FT_Vector* vec, + FT_Angle angle ) + { + FT_Int shift; + FT_Vector v; + + + v.x = vec->x; + v.y = vec->y; + + if ( angle && ( v.x != 0 || v.y != 0 ) ) + { + shift = ft_trig_prenorm( &v ); + ft_trig_pseudo_rotate( &v, angle ); + v.x = ft_trig_downscale( v.x ); + v.y = ft_trig_downscale( v.y ); + + if ( shift > 0 ) + { + FT_Int32 half = 1L << ( shift - 1 ); + + + vec->x = ( v.x + half + FT_SIGN_LONG( v.x ) ) >> shift; + vec->y = ( v.y + half + FT_SIGN_LONG( v.y ) ) >> shift; + } + else + { + shift = -shift; + vec->x = v.x << shift; + vec->y = v.y << shift; + } + } + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( FT_Fixed ) + FT_Vector_Length( FT_Vector* vec ) + { + FT_Int shift; + FT_Vector v; + + + v = *vec; + + /* handle trivial cases */ + if ( v.x == 0 ) + { + return ( v.y >= 0 ) ? v.y : -v.y; + } + else if ( v.y == 0 ) + { + return ( v.x >= 0 ) ? v.x : -v.x; + } + + /* general case */ + shift = ft_trig_prenorm( &v ); + ft_trig_pseudo_polarize( &v ); + + v.x = ft_trig_downscale( v.x ); + + if ( shift > 0 ) + return ( v.x + ( 1 << ( shift - 1 ) ) ) >> shift; + + return v.x << -shift; + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( void ) + FT_Vector_Polarize( FT_Vector* vec, + FT_Fixed *length, + FT_Angle *angle ) + { + FT_Int shift; + FT_Vector v; + + + v = *vec; + + if ( v.x == 0 && v.y == 0 ) + return; + + shift = ft_trig_prenorm( &v ); + ft_trig_pseudo_polarize( &v ); + + v.x = ft_trig_downscale( v.x ); + + *length = ( shift >= 0 ) ? ( v.x >> shift ) : ( v.x << -shift ); + *angle = v.y; + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( void ) + FT_Vector_From_Polar( FT_Vector* vec, + FT_Fixed length, + FT_Angle angle ) + { + vec->x = length; + vec->y = 0; + + FT_Vector_Rotate( vec, angle ); + } + + + /* documentation is in fttrigon.h */ + + FT_EXPORT_DEF( FT_Angle ) + FT_Angle_Diff( FT_Angle angle1, + FT_Angle angle2 ) + { + FT_Angle delta = angle2 - angle1; + + delta %= FT_ANGLE_2PI; + if ( delta < 0 ) + delta += FT_ANGLE_2PI; + + if ( delta > FT_ANGLE_PI ) + delta -= FT_ANGLE_2PI; + + return delta; + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/fttype1.c b/nx-X11/extras/freetype2/src/base/fttype1.c new file mode 100644 index 000000000..553b84f56 --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/fttype1.c @@ -0,0 +1,70 @@ +/***************************************************************************/ +/* */ +/* fttype1.c */ +/* */ +/* FreeType utility file for PS names support (body). */ +/* */ +/* Copyright 2002, 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_SERVICE_H +#include FT_SERVICE_POSTSCRIPT_INFO_H + + + /* documentation is in t1tables.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_Get_PS_Font_Info( FT_Face face, + PS_FontInfoRec* afont_info ) + { + FT_Error error = FT_Err_Invalid_Argument; + + + if ( face ) + { + FT_Service_PsInfo service = NULL; + + + FT_FACE_FIND_SERVICE( face, service, POSTSCRIPT_INFO ); + + if ( service && service->ps_get_font_info ) + error = service->ps_get_font_info( face, afont_info ); + } + + return error; + } + + + /* documentation is in t1tables.h */ + + FT_EXPORT_DEF( FT_Int ) + FT_Has_PS_Glyph_Names( FT_Face face ) + { + FT_Int result = 0; + FT_Service_PsInfo service = NULL; + + + if ( face ) + { + FT_FACE_FIND_SERVICE( face, service, POSTSCRIPT_INFO ); + + if ( service && service->ps_has_glyph_names ) + result = service->ps_has_glyph_names( face ); + } + + return result; + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftutil.c b/nx-X11/extras/freetype2/src/base/ftutil.c new file mode 100644 index 000000000..9d3ec43d7 --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftutil.c @@ -0,0 +1,397 @@ +/***************************************************************************/ +/* */ +/* ftutil.c */ +/* */ +/* FreeType utility file for memory and list management (body). */ +/* */ +/* Copyright 2002, 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. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_INTERNAL_DEBUG_H +#include FT_INTERNAL_MEMORY_H +#include FT_LIST_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_memory + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** *****/ + /***** M E M O R Y M A N A G E M E N T *****/ + /***** *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + + /* documentation is in ftmemory.h */ + + FT_BASE_DEF( FT_Error ) + FT_Alloc( FT_Memory memory, + FT_Long size, + void* *P ) + { + FT_ASSERT( P != 0 ); + + if ( size > 0 ) + { + *P = memory->alloc( memory, size ); + if ( !*P ) + { + FT_ERROR(( "FT_Alloc:" )); + FT_ERROR(( " Out of memory? (%ld requested)\n", + size )); + + return FT_Err_Out_Of_Memory; + } + FT_MEM_ZERO( *P, size ); + } + else + *P = NULL; + + FT_TRACE7(( "FT_Alloc:" )); + FT_TRACE7(( " size = %ld, block = 0x%08p, ref = 0x%08p\n", + size, *P, P )); + + return FT_Err_Ok; + } + + + FT_BASE_DEF( FT_Error ) + FT_QAlloc( FT_Memory memory, + FT_Long size, + void* *P ) + { + FT_ASSERT( P != 0 ); + + if ( size > 0 ) + { + *P = memory->alloc( memory, size ); + if ( !*P ) + { + FT_ERROR(( "FT_QAlloc:" )); + FT_ERROR(( " Out of memory? (%ld requested)\n", + size )); + + return FT_Err_Out_Of_Memory; + } + } + else + *P = NULL; + + FT_TRACE7(( "FT_QAlloc:" )); + FT_TRACE7(( " size = %ld, block = 0x%08p, ref = 0x%08p\n", + size, *P, P )); + + return FT_Err_Ok; + } + + + /* documentation is in ftmemory.h */ + + FT_BASE_DEF( FT_Error ) + FT_Realloc( FT_Memory memory, + FT_Long current, + FT_Long size, + void** P ) + { + void* Q; + + + FT_ASSERT( P != 0 ); + + /* if the original pointer is NULL, call FT_Alloc() */ + if ( !*P ) + return FT_Alloc( memory, size, P ); + + /* if the new block if zero-sized, clear the current one */ + if ( size <= 0 ) + { + FT_Free( memory, P ); + return FT_Err_Ok; + } + + Q = memory->realloc( memory, current, size, *P ); + if ( !Q ) + goto Fail; + + if ( size > current ) + FT_MEM_ZERO( (char*)Q + current, size - current ); + + *P = Q; + return FT_Err_Ok; + + Fail: + FT_ERROR(( "FT_Realloc:" )); + FT_ERROR(( " Failed (current %ld, requested %ld)\n", + current, size )); + return FT_Err_Out_Of_Memory; + } + + + FT_BASE_DEF( FT_Error ) + FT_QRealloc( FT_Memory memory, + FT_Long current, + FT_Long size, + void** P ) + { + void* Q; + + + FT_ASSERT( P != 0 ); + + /* if the original pointer is NULL, call FT_QAlloc() */ + if ( !*P ) + return FT_QAlloc( memory, size, P ); + + /* if the new block if zero-sized, clear the current one */ + if ( size <= 0 ) + { + FT_Free( memory, P ); + return FT_Err_Ok; + } + + Q = memory->realloc( memory, current, size, *P ); + if ( !Q ) + goto Fail; + + *P = Q; + return FT_Err_Ok; + + Fail: + FT_ERROR(( "FT_QRealloc:" )); + FT_ERROR(( " Failed (current %ld, requested %ld)\n", + current, size )); + return FT_Err_Out_Of_Memory; + } + + + /* documentation is in ftmemory.h */ + + FT_BASE_DEF( void ) + FT_Free( FT_Memory memory, + void** P ) + { + FT_TRACE7(( "FT_Free:" )); + FT_TRACE7(( " Freeing block 0x%08p, ref 0x%08p\n", + P, P ? *P : (void*)0 )); + + if ( P && *P ) + { + memory->free( memory, *P ); + *P = 0; + } + } + + + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + /***** *****/ + /***** *****/ + /***** D O U B L Y L I N K E D L I S T S *****/ + /***** *****/ + /***** *****/ + /*************************************************************************/ + /*************************************************************************/ + /*************************************************************************/ + +#undef FT_COMPONENT +#define FT_COMPONENT trace_list + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( FT_ListNode ) + FT_List_Find( FT_List list, + void* data ) + { + FT_ListNode cur; + + + cur = list->head; + while ( cur ) + { + if ( cur->data == data ) + return cur; + + cur = cur->next; + } + + return (FT_ListNode)0; + } + + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( void ) + FT_List_Add( FT_List list, + FT_ListNode node ) + { + FT_ListNode before = list->tail; + + + node->next = 0; + node->prev = before; + + if ( before ) + before->next = node; + else + list->head = node; + + list->tail = node; + } + + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( void ) + FT_List_Insert( FT_List list, + FT_ListNode node ) + { + FT_ListNode after = list->head; + + + node->next = after; + node->prev = 0; + + if ( !after ) + list->tail = node; + else + after->prev = node; + + list->head = node; + } + + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( void ) + FT_List_Remove( FT_List list, + FT_ListNode node ) + { + FT_ListNode before, after; + + + before = node->prev; + after = node->next; + + if ( before ) + before->next = after; + else + list->head = after; + + if ( after ) + after->prev = before; + else + list->tail = before; + } + + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( void ) + FT_List_Up( FT_List list, + FT_ListNode node ) + { + FT_ListNode before, after; + + + before = node->prev; + after = node->next; + + /* check whether we are already on top of the list */ + if ( !before ) + return; + + before->next = after; + + if ( after ) + after->prev = before; + else + list->tail = before; + + node->prev = 0; + node->next = list->head; + list->head->prev = node; + list->head = node; + } + + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( FT_Error ) + FT_List_Iterate( FT_List list, + FT_List_Iterator iterator, + void* user ) + { + FT_ListNode cur = list->head; + FT_Error error = FT_Err_Ok; + + + while ( cur ) + { + FT_ListNode next = cur->next; + + + error = iterator( cur, user ); + if ( error ) + break; + + cur = next; + } + + return error; + } + + + /* documentation is in ftlist.h */ + + FT_EXPORT_DEF( void ) + FT_List_Finalize( FT_List list, + FT_List_Destructor destroy, + FT_Memory memory, + void* user ) + { + FT_ListNode cur; + + + cur = list->head; + while ( cur ) + { + FT_ListNode next = cur->next; + void* data = cur->data; + + + if ( destroy ) + destroy( memory, data, user ); + + FT_FREE( cur ); + cur = next; + } + + list->head = 0; + list->tail = 0; + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftwinfnt.c b/nx-X11/extras/freetype2/src/base/ftwinfnt.c new file mode 100644 index 000000000..46f618c51 --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftwinfnt.c @@ -0,0 +1,49 @@ +/***************************************************************************/ +/* */ +/* ftwinfnt.c */ +/* */ +/* FreeType API for accessing Windows FNT specific info (body). */ +/* */ +/* Copyright 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_WINFONTS_H +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_WINFNT_H + + + FT_EXPORT_DEF( FT_Error ) + FT_Get_WinFNT_Header( FT_Face face, + FT_WinFNT_HeaderRec *header ) + { + FT_Service_WinFnt service; + FT_Error error; + + + error = FT_Err_Invalid_Argument; + + if ( face != NULL ) + { + FT_FACE_LOOKUP_SERVICE( face, service, WINFNT ); + + if ( service != NULL ) + { + error = service->get_header( face, header ); + } + } + + return error; + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/ftxf86.c b/nx-X11/extras/freetype2/src/base/ftxf86.c new file mode 100644 index 000000000..04e80236e --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/ftxf86.c @@ -0,0 +1,37 @@ +/***************************************************************************/ +/* */ +/* ftxf86.c */ +/* */ +/* FreeType utility file for X11 support (body). */ +/* */ +/* Copyright 2002, 2003 by */ +/* David Turner, Robert Wilhelm, and Werner Lemberg. */ +/* */ +/* This file is part of the FreeType project, and may only be used, */ +/* modified, and distributed under the terms of the FreeType project */ +/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ +/* this file you indicate that you have read the license and */ +/* understand and accept it fully. */ +/* */ +/***************************************************************************/ + + +#include <ft2build.h> +#include FT_XFREE86_H +#include FT_INTERNAL_OBJECTS_H +#include FT_SERVICE_XFREE86_NAME_H + + FT_EXPORT_DEF( const char* ) + FT_Get_X11_Font_Format( FT_Face face ) + { + const char* result = NULL; + + + if ( face ) + FT_FACE_FIND_SERVICE( face, result, XF86_NAME ); + + return result; + } + + +/* END */ diff --git a/nx-X11/extras/freetype2/src/base/rules.mk b/nx-X11/extras/freetype2/src/base/rules.mk new file mode 100644 index 000000000..8017e8589 --- /dev/null +++ b/nx-X11/extras/freetype2/src/base/rules.mk @@ -0,0 +1,96 @@ +# +# FreeType 2 base layer configuration rules +# + + +# Copyright 1996-2000, 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. + + +# It sets the following variables which are used by the master Makefile +# after the call: +# +# BASE_OBJ_S: The single-object base layer. +# BASE_OBJ_M: A list of all objects for a multiple-objects build. +# BASE_EXT_OBJ: A list of base layer extensions, i.e., components found +# in `freetype/src/base' which are not compiled within the +# base layer proper. +# +# BASE_H is defined in freetype.mk to simplify the dependency rules. + + +BASE_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(SRC_DIR)/base) + + +# Base layer sources +# +# ftsystem, ftinit, and ftdebug are handled by freetype.mk +# +BASE_SRC := $(BASE_DIR)/ftapi.c \ + $(BASE_DIR)/ftcalc.c \ + $(BASE_DIR)/ftdbgmem.c \ + $(BASE_DIR)/ftgloadr.c \ + $(BASE_DIR)/ftnames.c \ + $(BASE_DIR)/ftobjs.c \ + $(BASE_DIR)/ftoutln.c \ + $(BASE_DIR)/ftrfork.c \ + $(BASE_DIR)/ftstream.c \ + $(BASE_DIR)/fttrigon.c \ + $(BASE_DIR)/ftutil.c + +# Base layer `extensions' sources +# +# An extension is added to the library file (.a or .lib) as a separate +# object. It will then be linked to the final executable only if one of its +# symbols is used by the application. +# +BASE_EXT_SRC := $(BASE_DIR)/ftbbox.c \ + $(BASE_DIR)/ftbdf.c \ + $(BASE_DIR)/ftglyph.c \ + $(BASE_DIR)/ftmm.c \ + $(BASE_DIR)/ftpfr.c \ + $(BASE_DIR)/ftstroke.c \ + $(BASE_DIR)/fttype1.c \ + $(BASE_DIR)/ftwinfnt.c \ + $(BASE_DIR)/ftxf86.c + +# Default extensions objects +# +BASE_EXT_OBJ := $(BASE_EXT_SRC:$(BASE_DIR)/%.c=$(OBJ_DIR)/%.$O) + + +# Base layer object(s) +# +# BASE_OBJ_M is used during `multi' builds (each base source file compiles +# to a single object file). +# +# BASE_OBJ_S is used during `single' builds (the whole base layer is +# compiled as a single object file using ftbase.c). +# +BASE_OBJ_M := $(BASE_SRC:$(BASE_DIR)/%.c=$(OBJ_DIR)/%.$O) +BASE_OBJ_S := $(OBJ_DIR)/ftbase.$O + +# Base layer root source file for single build +# +BASE_SRC_S := $(BASE_DIR)/ftbase.c + + +# Base layer - single object build +# +$(BASE_OBJ_S): $(BASE_SRC_S) $(BASE_SRC) $(FREETYPE_H) + $(BASE_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(BASE_SRC_S)) + + +# Multiple objects build + extensions +# +$(OBJ_DIR)/%.$O: $(BASE_DIR)/%.c $(FREETYPE_H) + $(BASE_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) + + +# EOF |