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-rw-r--r--Build/source/libs/freetype/freetype-1.5/lib/ttgload.c1353
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diff --git a/Build/source/libs/freetype/freetype-1.5/lib/ttgload.c b/Build/source/libs/freetype/freetype-1.5/lib/ttgload.c
deleted file mode 100644
index e7a838a40a7..00000000000
--- a/Build/source/libs/freetype/freetype-1.5/lib/ttgload.c
+++ /dev/null
@@ -1,1353 +0,0 @@
-/*******************************************************************
- *
- * ttgload.c 1.0
- *
- * TrueType Glyph Loader.
- *
- * Copyright 1996-2000 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 "tttypes.h"
-#include "ttdebug.h"
-#include "ttcalc.h"
-#include "ttfile.h"
-
-#include "tttables.h"
-#include "ttobjs.h"
-#include "ttgload.h"
-
-#include "ttmemory.h"
-#include "tttags.h"
-#include "ttload.h"
-
-/* required by the tracing mode */
-#undef TT_COMPONENT
-#define TT_COMPONENT trace_gload
-
-
-/* composite font flags */
-
-#define ARGS_ARE_WORDS 0x001
-#define ARGS_ARE_XY_VALUES 0x002
-#define ROUND_XY_TO_GRID 0x004
-#define WE_HAVE_A_SCALE 0x008
-/* reserved 0x010 */
-#define MORE_COMPONENTS 0x020
-#define WE_HAVE_AN_XY_SCALE 0x040
-#define WE_HAVE_A_2X2 0x080
-#define WE_HAVE_INSTR 0x100
-#define USE_MY_METRICS 0x200
-
-
-/********************************************************/
-/* Return horizontal or vertical metrics in font units */
-/* for a given glyph. The metrics are the left side */
-/* bearing (resp. top side bearing) and advance width */
-/* (resp. advance height). */
-/* */
-/* This function will much probably move to another */
-/* component in the short future, but I haven't decided */
-/* which yet... */
-
- FT_INTERNAL_FUNC( void )
- TT_Get_Metrics( TT_Horizontal_Header* header,
- UShort index,
- Short* bearing,
- UShort* advance )
- {
- PLongMetrics longs_m;
-
- UShort k = header->number_Of_HMetrics;
-
-
- if ( index < k )
- {
- longs_m = (PLongMetrics)header->long_metrics + index;
- *bearing = longs_m->bearing;
- *advance = longs_m->advance;
- }
- else
- {
- *bearing = ((PShortMetrics)header->short_metrics)[index - k];
- *advance = ((PLongMetrics)header->long_metrics)[k - 1].advance;
- }
- }
-
-
-/********************************************************/
-/* Return horizontal metrics in font units for a given */
-/* glyph. If `check' is true, take care of mono-spaced */
-/* fonts by returning the advance width max. */
-
- static void Get_HMetrics( PFace face,
- UShort index,
- Bool check,
- Short* lsb,
- UShort* aw )
- {
- TT_Get_Metrics( &face->horizontalHeader, index, lsb, aw );
-
- if ( check && face->postscript.isFixedPitch )
- *aw = face->horizontalHeader.advance_Width_Max;
- }
-
-
-/********************************************************/
-/* Return advance width table for a given pixel size */
-/* if it is found in the font's `hdmx' table (if any). */
-
- static PByte Get_Advance_Widths( PFace face,
- UShort ppem )
- {
- UShort n;
-
-
- for ( n = 0; n < face->hdmx.num_records; n++ )
- if ( face->hdmx.records[n].ppem == ppem )
- return face->hdmx.records[n].widths;
-
- return NULL;
- }
-
-
-/********************************************************/
-/* Copy current glyph into original one. */
-
-#define cur_to_org( n, zone ) \
- MEM_Copy( (zone)->org, (zone)->cur, (n) * sizeof ( TT_Vector ) )
-
-/********************************************************/
-/* copy original glyph into current one */
-
-#define org_to_cur( n, zone ) \
- MEM_Copy( (zone)->cur, (zone)->org, (n) * sizeof ( TT_Vector ) )
-
-/********************************************************/
-/* translate an array of coordinates */
-
- static void translate_array( UShort n,
- TT_Vector* coords,
- TT_Pos delta_x,
- TT_Pos delta_y )
- {
- UShort k;
-
-
- if ( delta_x )
- for ( k = 0; k < n; k++ )
- coords[k].x += delta_x;
-
- if ( delta_y )
- for ( k = 0; k < n; k++ )
- coords[k].y += delta_y;
- }
-
-
-/********************************************************/
-/* mount one zone on top of another */
-
- static void mount_zone( PGlyph_Zone source,
- PGlyph_Zone target )
- {
- UShort np;
- Short nc;
-
- np = source->n_points;
- nc = source->n_contours;
-
- target->org = source->org + np;
- target->cur = source->cur + np;
- target->touch = source->touch + np;
-
- target->contours = source->contours + nc;
-
- target->n_points = 0;
- target->n_contours = 0;
- }
-
-
-/*******************************************************************
- *
- * Function: Load_Simple_Glyph
- *
- ******************************************************************/
-
- static TT_Error Load_Simple_Glyph( PExecution_Context exec,
- TT_Stream input,
- Short n_contours,
- Short left_contours,
- UShort left_points,
- UShort load_flags,
- PSubglyph_Record subg )
- {
- DEFINE_LOAD_LOCALS( input );
-
- PGlyph_Zone pts;
- Short k;
- UShort j;
- UShort n_points, n_ins;
- PFace face;
- Byte* flag;
- TT_Vector* vec;
- TT_F26Dot6 x, y;
-
-
- face = exec->face;
-
- /* simple check */
- if ( n_contours > left_contours )
- {
- PTRACE0(( "ERROR: Glyph index %ld has %d contours > left %d\n",
- subg->index, n_contours, left_contours ));
- return TT_Err_Too_Many_Contours;
- }
-
-
- /* preparing the execution context */
- mount_zone( &subg->zone, &exec->pts );
-
- /* reading the contours endpoints */
- if ( ACCESS_Frame( (n_contours + 1) * 2L ) )
- return error;
-
- PTRACE4(( " Contour endpoints:" ));
-
- for ( k = 0; k < n_contours; k++ )
- {
- exec->pts.contours[k] = GET_UShort();
- PTRACE4(( " %d", exec->pts.contours[k] ));
- }
- PTRACE4(( "\n" ));
-
- if ( n_contours > 0 )
- n_points = exec->pts.contours[n_contours - 1] + 1;
- else
- n_points = 0;
-
- n_ins = GET_UShort();
-
- FORGET_Frame();
-
- if ( n_points > left_points )
- {
- PTRACE0(( "ERROR: Too many points in glyph %ld\n", subg->index ));
- return TT_Err_Too_Many_Points;
- }
-
- /* loading instructions */
-
- PTRACE4(( " Instructions size: %d\n", n_ins ));
-
- if ( n_ins > face->maxProfile.maxSizeOfInstructions )
- {
- PTRACE0(( "ERROR: Too many instructions!\n" ));
- return TT_Err_Too_Many_Ins;
- }
-
- if ( FILE_Read( exec->glyphIns, n_ins ) )
- return error;
-
- if ( (error = Set_CodeRange( exec,
- TT_CodeRange_Glyph,
- exec->glyphIns,
- n_ins )) != TT_Err_Ok )
- return error;
-
-
- /* read the flags */
-
- if ( CHECK_AND_ACCESS_Frame( n_points * 5L ) )
- return error;
-
- j = 0;
- flag = exec->pts.touch;
-
- while ( j < n_points )
- {
- Byte c, cnt;
-
- flag[j] = c = GET_Byte();
- j++;
-
- if ( c & 8 )
- {
- cnt = GET_Byte();
- while( cnt > 0 )
- {
- flag[j++] = c;
- cnt--;
- }
- }
- }
-
- /* read the X */
-
- x = 0;
- vec = exec->pts.org;
-
- for ( j = 0; j < n_points; j++ )
- {
- if ( flag[j] & 2 )
- {
- if ( flag[j] & 16 )
- x += GET_Byte();
- else
- x -= GET_Byte();
- }
- else
- {
- if ( (flag[j] & 16) == 0 )
- x += GET_Short();
- }
-
- vec[j].x = x;
- }
-
-
- /* read the Y */
-
- y = 0;
-
- for ( j = 0; j < n_points; j++ )
- {
- if ( flag[j] & 4 )
- {
- if ( flag[j] & 32 )
- y += GET_Byte();
- else
- y -= GET_Byte();
- }
- else
- {
- if ( (flag[j] & 32) == 0 )
- y += GET_Short();
- }
-
- vec[j].y = y;
- }
-
- FORGET_Frame();
- /* Now add the two shadow points at n and n + 1. */
- /* We need the left side bearing and advance width. */
-
- /* pp1 = xMin - lsb */
- vec[n_points].x = subg->metrics.bbox.xMin - subg->metrics.horiBearingX;
- vec[n_points].y = 0;
-
- /* pp2 = pp1 + aw */
- vec[n_points+1].x = vec[n_points].x + subg->metrics.horiAdvance;
- vec[n_points+1].y = 0;
-
- /* clear the touch flags */
-
- for ( j = 0; j < n_points; j++ )
- exec->pts.touch[j] &= TT_Flag_On_Curve;
-
- exec->pts.touch[n_points ] = 0;
- exec->pts.touch[n_points + 1] = 0;
-
- /* Note that we return two more points that are not */
- /* part of the glyph outline. */
-
- n_points += 2;
-
- /* now eventually scale and hint the glyph */
-
- pts = &exec->pts;
- pts->n_points = n_points;
- pts->n_contours = n_contours;
-
- if ( (load_flags & TTLOAD_SCALE_GLYPH) == 0 )
- {
- /* no scaling, just copy the orig arrays into the cur ones */
- org_to_cur( n_points, pts );
- }
- else
- {
- /* first scale the glyph points */
-
- for ( j = 0; j < n_points; j++ )
- {
- pts->org[j].x = Scale_X( &exec->metrics, pts->org[j].x );
- pts->org[j].y = Scale_Y( &exec->metrics, pts->org[j].y );
- }
-
- /* if hinting, round pp1, and shift the glyph accordingly */
- if ( subg->is_hinted )
- {
- x = pts->org[n_points - 2].x;
- x = ((x+32) & -64) - x;
- translate_array( n_points, pts->org, x, 0 );
-
- org_to_cur( n_points, pts );
-
- pts->cur[n_points - 1].x = (pts->cur[n_points - 1].x + 32) & -64;
-
- /* now consider hinting */
- if ( n_ins > 0 )
- {
- exec->is_composite = FALSE;
- exec->pedantic_hinting = load_flags & TTLOAD_PEDANTIC;
-
- error = Context_Run( exec, FALSE );
- if (error && exec->pedantic_hinting)
- return error;
- }
- }
- else
- org_to_cur( n_points, pts );
- }
-
- /* save glyph phantom points */
- if (!subg->preserve_pps)
- {
- subg->pp1 = pts->cur[n_points - 2];
- subg->pp2 = pts->cur[n_points - 1];
- }
-
- return TT_Err_Ok;
- }
-
-
-/*******************************************************************
- *
- * Function : Load_Composite_End
- *
- ******************************************************************/
-
- static
- TT_Error Load_Composite_End( UShort n_points,
- Short n_contours,
- PExecution_Context exec,
- PSubglyph_Record subg,
- UShort load_flags,
- TT_Stream input )
- {
- DEFINE_LOAD_LOCALS( input );
-
- UShort k, n_ins;
- PGlyph_Zone pts;
-
-
- if ( subg->is_hinted &&
- subg->element_flag & WE_HAVE_INSTR )
- {
- if ( ACCESS_Frame( 2L ) )
- return error;
-
- n_ins = GET_UShort(); /* read size of instructions */
- FORGET_Frame();
-
- PTRACE4(( " Instructions size: %d\n", n_ins ));
-
- if ( n_ins > exec->face->maxProfile.maxSizeOfInstructions )
- {
- PTRACE0(( "ERROR: Too many instructions in composite glyph %ld\n",
- subg->index ));
- return TT_Err_Too_Many_Ins;
- }
-
- if ( FILE_Read( exec->glyphIns, n_ins ) )
- return error;
-
- error = Set_CodeRange( exec,
- TT_CodeRange_Glyph,
- exec->glyphIns,
- n_ins );
-
- if ( error )
- return error;
- }
- else
- n_ins = 0;
-
-
- /* prepare the execution context */
- n_points += 2;
- exec->pts = subg->zone;
- pts = &exec->pts;
-
- pts->n_points = n_points;
- pts->n_contours = n_contours;
-
- /* add phantom points */
- pts->cur[n_points - 2] = subg->pp1;
- pts->cur[n_points - 1] = subg->pp2;
-
- pts->touch[n_points - 1] = 0;
- pts->touch[n_points - 2] = 0;
-
- /* if hinting, round the phantom points */
- if ( subg->is_hinted )
- {
- pts->cur[n_points - 2].x = (subg->pp1.x + 32) & -64;
- pts->cur[n_points - 1].x = (subg->pp2.x + 32) & -64;
- }
-
- for ( k = 0; k < n_points; k++ )
- pts->touch[k] &= TT_Flag_On_Curve;
-
- cur_to_org( n_points, pts );
-
- /* now consider hinting */
- if ( subg->is_hinted && n_ins > 0 )
- {
- exec->is_composite = TRUE;
- exec->pedantic_hinting = load_flags & TTLOAD_PEDANTIC;
-
- error = Context_Run( exec, FALSE );
- if (error && exec->pedantic_hinting)
- return error;
- }
-
- /* save glyph origin and advance points */
- subg->pp1 = pts->cur[n_points - 2];
- subg->pp2 = pts->cur[n_points - 1];
-
- return TT_Err_Ok;
- }
-
-
-/*******************************************************************
- *
- * Function : Init_Glyph_Component
- *
- ******************************************************************/
-
- static
- void Init_Glyph_Component( PSubglyph_Record element,
- PSubglyph_Record original,
- PExecution_Context exec )
- {
- element->index = -1;
- element->is_scaled = FALSE;
- element->is_hinted = FALSE;
-
- if ( original )
- mount_zone( &original->zone, &element->zone );
- else
- element->zone = exec->pts;
-
- element->zone.n_contours = 0;
- element->zone.n_points = 0;
-
- element->arg1 = 0;
- element->arg2 = 0;
-
- element->element_flag = 0;
- element->preserve_pps = FALSE;
-
- element->transform.xx = 1L << 16;
- element->transform.xy = 0;
- element->transform.yx = 0;
- element->transform.yy = 1L << 16;
-
- element->transform.ox = 0;
- element->transform.oy = 0;
-
- element->metrics.horiBearingX = 0;
- element->metrics.horiAdvance = 0;
- }
-
-
- FT_INTERNAL_FUNC( TT_Error )
- Load_TrueType_Glyph( PInstance instance,
- PGlyph glyph,
- UShort glyph_index,
- UShort load_flags )
- {
- enum TPhases_
- {
- Load_Exit,
- Load_Glyph,
- Load_Header,
- Load_Simple,
- Load_Composite,
- Load_End
- };
-
- typedef enum TPhases_ TPhases;
-
- DEFINE_ALL_LOCALS;
-
- PFace face;
-
- UShort num_points;
- Short num_contours;
- UShort left_points;
- Short left_contours;
- UShort num_elem_points;
-
- Long table;
- UShort load_top;
- Long k, l;
- UShort new_flags;
- Long index;
- UShort u, v;
-
- Long glyph_offset, offset;
-
- TT_F26Dot6 x, y, nx, ny;
-
- Fixed xx, xy, yx, yy;
-
- PExecution_Context exec;
-
- PSubglyph_Record subglyph, subglyph2;
-
- TGlyph_Zone base_pts;
-
- TPhases phase;
- PByte widths;
-
-/* TT_Glyph_Loader_Callback cacheCb; */
-/* TT_Outline cached_outline; */
-
-
- /* first of all, check arguments */
- if ( !glyph )
- return TT_Err_Invalid_Glyph_Handle;
-
- face = glyph->face;
- if ( !face )
- return TT_Err_Invalid_Glyph_Handle;
-
- if ( glyph_index >= face->numGlyphs )
- return TT_Err_Invalid_Glyph_Index;
-
- if ( instance && (load_flags & TTLOAD_SCALE_GLYPH) == 0 )
- {
- instance = 0;
- load_flags &= ~( TTLOAD_SCALE_GLYPH | TTLOAD_HINT_GLYPH );
- }
-
- table = TT_LookUp_Table( face, TTAG_glyf );
- if ( table < 0 )
- {
- PTRACE0(( "ERROR: There is no glyph table in this font file!\n" ));
- return TT_Err_Glyf_Table_Missing;
- }
-
- glyph_offset = face->dirTables[table].Offset;
-
- /* query new execution context */
-
- if ( instance && instance->debug )
- exec = instance->context;
- else
- exec = New_Context( face );
-
- if ( !exec )
- return TT_Err_Could_Not_Find_Context;
-
- Context_Load( exec, face, instance );
-
- if ( instance )
- {
- if ( instance->GS.instruct_control & 2 )
- exec->GS = Default_GraphicsState;
- else
- exec->GS = instance->GS;
- /* load default graphics state */
-
- glyph->outline.high_precision = ( instance->metrics.y_ppem < 24 );
- }
-
- /* save its critical pointers, as they'll be modified during load */
- base_pts = exec->pts;
-
- /* init variables */
- left_points = face->maxPoints;
- left_contours = face->maxContours;
-
- num_points = 0;
- num_contours = 0;
-
- load_top = 0;
- subglyph = exec->loadStack;
-
- Init_Glyph_Component( subglyph, NULL, exec );
-
- subglyph->index = glyph_index;
- subglyph->is_hinted = load_flags & TTLOAD_HINT_GLYPH;
-
- /* when the cvt program has disabled hinting, the argument */
- /* is ignored. */
- if ( instance && instance->GS.instruct_control & 1 )
- subglyph->is_hinted = FALSE;
-
-
- /* now access stream */
-
- if ( USE_Stream( face->stream, stream ) )
- goto Fin;
-
- /* Main loading loop */
-
- phase = Load_Glyph;
- index = 0;
-
- while ( phase != Load_Exit )
- {
- subglyph = exec->loadStack + load_top;
-
- switch ( phase )
- {
- /************************************************************/
- /* */
- /* Load_Glyph state */
- /* */
- /* reading a glyph's generic header to determine */
- /* whether it's simple or composite */
- /* */
- /* exit states: Load_Header and Load_End */
-
- case Load_Glyph:
- /* check glyph index and table */
-
- index = subglyph->index;
- if ( index < 0 || index >= face->numGlyphs )
- {
- error = TT_Err_Invalid_Glyph_Index;
- goto Fail;
- }
-
- /* get horizontal metrics */
-
- {
- Short left_bearing;
- UShort advance_width;
-
-
- Get_HMetrics( face, (UShort)index,
- !(load_flags & TTLOAD_IGNORE_GLOBAL_ADVANCE_WIDTH),
- &left_bearing,
- &advance_width );
-
- subglyph->metrics.horiBearingX = left_bearing;
- subglyph->metrics.horiAdvance = advance_width;
- }
-
- phase = Load_Header;
-
-
- /* The cache callback isn't part of the FreeType release yet */
- /* It is discarded for the moment.. */
- /* */
-#if 0
- if ( instance )
- {
- /* is the glyph in an outline cache ? */
- cacheCb = instance->owner->engine->glCallback;
- if ( cacheCb && 0 ) /* disabled */
- {
- /* we have a callback */
- error = cacheCb( instance->generic,
- index, &cached_outline, &x, &y );
- if ( !error )
- {
- /* no error, then append the outline to the current subglyph */
- /* error = Append_Outline( subglyph,
- &left_points,
- &left_contours,
- &cached_outline ); */
- phase = Load_End;
- }
- }
- }
-#endif
- break;
-
-
- /************************************************************/
- /* */
- /* Load_Header state */
- /* */
- /* reading a glyph's generic header to determine */
- /* wether it's simple or composite */
- /* */
- /* exit states: Load_Simple and Load_Composite */
- /* */
-
- case Load_Header: /* load glyph */
-
- if ( (TT_UInt)( index + 1 ) < (TT_UInt)face->numLocations &&
- face->glyphLocations[index] == face->glyphLocations[index + 1] )
- {
- /* as described by Frederic Loyer, these are spaces, and */
- /* not the unknown glyph. */
-
- num_contours = 0;
- num_points = 0;
-
- subglyph->metrics.bbox.xMin = 0;
- subglyph->metrics.bbox.xMax = 0;
- subglyph->metrics.bbox.yMin = 0;
- subglyph->metrics.bbox.yMax = 0;
-
- subglyph->pp1.x = 0;
- subglyph->pp2.x = subglyph->metrics.horiAdvance;
- if (load_flags & TTLOAD_SCALE_GLYPH)
- subglyph->pp2.x = Scale_X( &exec->metrics, subglyph->pp2.x );
-
- exec->glyphSize = 0;
- phase = Load_End;
- break;
- }
-
- offset = glyph_offset + face->glyphLocations[index];
-
- /* read first glyph header */
- if ( FILE_Seek( offset ) ||
- ACCESS_Frame( 10L ) )
- goto Fail_File;
-
- num_contours = GET_Short();
-
- subglyph->metrics.bbox.xMin = GET_Short();
- subglyph->metrics.bbox.yMin = GET_Short();
- subglyph->metrics.bbox.xMax = GET_Short();
- subglyph->metrics.bbox.yMax = GET_Short();
-
- FORGET_Frame();
-
- PTRACE6(( "Glyph %ld:\n", index ));
- PTRACE6(( " # of contours: %d\n", num_contours ));
- PTRACE6(( " xMin: %4d xMax: %4d\n",
- subglyph->metrics.bbox.xMin,
- subglyph->metrics.bbox.xMax ));
- PTRACE6(( " yMin: %4d yMax: %4d\n",
- subglyph->metrics.bbox.yMin,
- subglyph->metrics.bbox.yMax ));
-
- if ( num_contours > left_contours )
- {
- PTRACE0(( "ERROR: Too many contours for glyph %ld\n", index ));
- error = TT_Err_Too_Many_Contours;
- goto Fail;
- }
-
- subglyph->pp1.x = subglyph->metrics.bbox.xMin -
- subglyph->metrics.horiBearingX;
- subglyph->pp1.y = 0;
- subglyph->pp2.x = subglyph->pp1.x + subglyph->metrics.horiAdvance;
- if (load_flags & TTLOAD_SCALE_GLYPH)
- {
- subglyph->pp1.x = Scale_X( &exec->metrics, subglyph->pp1.x );
- subglyph->pp2.x = Scale_X( &exec->metrics, subglyph->pp2.x );
- }
-
- /* is it a simple glyph ? */
- if ( num_contours > 0 )
- phase = Load_Simple;
- else
- phase = Load_Composite;
-
- break;
-
-
- /************************************************************/
- /* */
- /* Load_Simple state */
- /* */
- /* reading a simple glyph (num_contours must be set to */
- /* the glyph's number of contours.) */
- /* */
- /* exit states : Load_End */
- /* */
-
- case Load_Simple:
- new_flags = load_flags;
-
- /* disable hinting when scaling */
- if ( !subglyph->is_hinted )
- new_flags &= ~TTLOAD_HINT_GLYPH;
-
- error = Load_Simple_Glyph( exec,
- stream,
- num_contours,
- left_contours,
- left_points,
- new_flags,
- subglyph );
- if ( error )
- goto Fail;
-
- /* Note: We could have put the simple loader source there */
- /* but the code is fat enough already :-) */
-
- num_points = exec->pts.n_points - 2;
-
- phase = Load_End;
-
- break;
-
-
- /************************************************************/
- /* */
- /* Load_Composite state */
- /* */
- /* reading a composite glyph header a pushing a new */
- /* load element on the stack. */
- /* */
- /* exit states: Load_Glyph */
- /* */
-
- case Load_Composite:
-
- /* create a new element on the stack */
- load_top++;
-
- if ( load_top > face->maxComponents )
- {
- error = TT_Err_Invalid_Composite;
- goto Fail;
- }
-
- subglyph2 = exec->loadStack + load_top;
-
- Init_Glyph_Component( subglyph2, subglyph, NULL );
- subglyph2->is_hinted = subglyph->is_hinted;
-
- /* now read composite header */
-
- if ( ACCESS_Frame( 4L ) )
- goto Fail_File;
-
- subglyph->element_flag = new_flags = GET_UShort();
-
- subglyph2->index = GET_UShort();
-
- FORGET_Frame();
-
- k = 1 + 1;
-
- if ( new_flags & ARGS_ARE_WORDS )
- k *= 2;
-
- if ( new_flags & WE_HAVE_A_SCALE )
- k += 2;
-
- else if ( new_flags & WE_HAVE_AN_XY_SCALE )
- k += 4;
-
- else if ( new_flags & WE_HAVE_A_2X2 )
- k += 8;
-
- if ( ACCESS_Frame( k ) )
- goto Fail_File;
-
- if ( new_flags & ARGS_ARE_WORDS )
- {
- k = GET_Short();
- l = GET_Short();
- }
- else
- {
- k = GET_Char();
- l = GET_Char();
- }
-
- subglyph->arg1 = k;
- subglyph->arg2 = l;
-
- if ( new_flags & ARGS_ARE_XY_VALUES )
- {
- subglyph->transform.ox = k;
- subglyph->transform.oy = l;
- }
-
- xx = 1L << 16;
- xy = 0;
- yx = 0;
- yy = 1L << 16;
-
- if ( new_flags & WE_HAVE_A_SCALE )
- {
- xx = (Fixed)GET_Short() << 2;
- yy = xx;
- subglyph2->is_scaled = TRUE;
- }
- else if ( new_flags & WE_HAVE_AN_XY_SCALE )
- {
- xx = (Fixed)GET_Short() << 2;
- yy = (Fixed)GET_Short() << 2;
- subglyph2->is_scaled = TRUE;
- }
- else if ( new_flags & WE_HAVE_A_2X2 )
- {
- xx = (Fixed)GET_Short() << 2;
- xy = (Fixed)GET_Short() << 2;
- yx = (Fixed)GET_Short() << 2;
- yy = (Fixed)GET_Short() << 2;
- subglyph2->is_scaled = TRUE;
- }
-
- FORGET_Frame();
-
- subglyph->transform.xx = xx;
- subglyph->transform.xy = xy;
- subglyph->transform.yx = yx;
- subglyph->transform.yy = yy;
-
- k = TT_MulFix( xx, yy ) - TT_MulFix( xy, yx );
-
- /* disable hinting in case of scaling/slanting */
- if ( ABS( k ) != (1L << 16) )
- subglyph2->is_hinted = FALSE;
-
- subglyph->file_offset = FILE_Pos();
-
- phase = Load_Glyph;
-
- break;
-
-
- /************************************************************/
- /* */
- /* Load_End state */
- /* */
- /* after loading a glyph, apply transformation and offset */
- /* where necessary, pops element and continue or */
- /* stop process. */
- /* */
- /* exit states : Load_Composite and Load_Exit */
- /* */
-
- case Load_End:
- if ( load_top > 0 )
- {
- subglyph2 = subglyph;
-
- load_top--;
- subglyph = exec->loadStack + load_top;
-
- /* check advance width and left side bearing */
-
- if ( !subglyph->preserve_pps &&
- subglyph->element_flag & USE_MY_METRICS )
- {
- subglyph->metrics.horiBearingX = subglyph2->metrics.horiBearingX;
- subglyph->metrics.horiAdvance = subglyph2->metrics.horiAdvance;
-
- subglyph->pp1 = subglyph2->pp1;
- subglyph->pp2 = subglyph2->pp2;
-
- subglyph->preserve_pps = TRUE;
- }
-
- /* apply scale */
-
- if ( subglyph2->is_scaled )
- {
- TT_Vector* cur = subglyph2->zone.cur;
- TT_Vector* org = subglyph2->zone.org;
-
- for ( u = 0; u < num_points; u++ )
- {
- nx = TT_MulFix( cur->x, subglyph->transform.xx ) +
- TT_MulFix( cur->y, subglyph->transform.yx );
-
- ny = TT_MulFix( cur->x, subglyph->transform.xy ) +
- TT_MulFix( cur->y, subglyph->transform.yy );
-
- cur->x = nx;
- cur->y = ny;
-
- nx = TT_MulFix( org->x, subglyph->transform.xx ) +
- TT_MulFix( org->y, subglyph->transform.yx );
-
- ny = TT_MulFix( org->x, subglyph->transform.xy ) +
- TT_MulFix( org->y, subglyph->transform.yy );
-
- org->x = nx;
- org->y = ny;
-
- cur++;
- org++;
- }
- }
-
- /* adjust counts */
-
- num_elem_points = subglyph->zone.n_points;
-
- for ( k = 0; k < num_contours; k++ )
- subglyph2->zone.contours[k] += num_elem_points;
-
- subglyph->zone.n_points += num_points;
- subglyph->zone.n_contours += num_contours;
-
- left_points -= num_points;
- left_contours -= num_contours;
-
- if ( !(subglyph->element_flag & ARGS_ARE_XY_VALUES) )
- {
- /* move second glyph according to control points */
- /* the attach points are relative to the specific component */
-
- u = (UShort)subglyph->arg1;
- v = (UShort)subglyph->arg2;
-
- if ( u >= num_elem_points ||
- v >= num_points )
- {
- error = TT_Err_Invalid_Composite;
- goto Fail;
- }
-
- /* adjust count */
- v += num_elem_points;
-
- x = subglyph->zone.cur[u].x - subglyph->zone.cur[v].x;
- y = subglyph->zone.cur[u].y - subglyph->zone.cur[v].y;
- }
- else
- {
- /* apply offset */
-
- x = subglyph->transform.ox;
- y = subglyph->transform.oy;
-
- if ( load_flags & TTLOAD_SCALE_GLYPH )
- {
- x = Scale_X( &exec->metrics, x );
- y = Scale_Y( &exec->metrics, y );
-
- if ( subglyph->element_flag & ROUND_XY_TO_GRID )
- {
- x = (x+32) & -64;
- y = (y+32) & -64;
- }
- }
- }
-
- translate_array( num_points, subglyph2->zone.cur, x, y );
-
- cur_to_org( num_points, &subglyph2->zone );
-
- num_points = subglyph->zone.n_points;
- num_contours = subglyph->zone.n_contours;
-
- /* check for last component */
-
- if ( FILE_Seek( subglyph->file_offset ) )
- goto Fail_File;
-
- if ( subglyph->element_flag & MORE_COMPONENTS )
- phase = Load_Composite;
- else
- {
- error = Load_Composite_End( num_points,
- num_contours,
- exec,
- subglyph,
- load_flags,
- stream );
- if ( error )
- goto Fail;
-
- phase = Load_End;
- }
- }
- else
- phase = Load_Exit;
-
- break;
-
-
- case Load_Exit:
- break;
- }
- }
-
- /* finally, copy the points arrays to the glyph object */
-
- exec->pts = base_pts;
-
- for ( u = 0; u < num_points + 2; u++ )
- {
- glyph->outline.points[u] = exec->pts.cur[u];
- glyph->outline.flags [u] = exec->pts.touch[u];
- }
-
- for ( k = 0; k < num_contours; k++ )
- glyph->outline.contours[k] = exec->pts.contours[k];
-
- glyph->outline.n_points = num_points;
- glyph->outline.n_contours = num_contours;
- glyph->outline.second_pass = TRUE;
-
- /* translate array so that (0,0) is the glyph's origin */
- translate_array( num_points + 2,
- glyph->outline.points,
- -subglyph->pp1.x,
- 0 );
-
- TT_Get_Outline_BBox( &glyph->outline, &glyph->metrics.bbox );
-
- if ( subglyph->is_hinted )
- {
- /* grid-fit the bounding box */
- glyph->metrics.bbox.xMin &= -64;
- glyph->metrics.bbox.yMin &= -64;
- glyph->metrics.bbox.xMax = (glyph->metrics.bbox.xMax+63) & -64;
- glyph->metrics.bbox.yMax = (glyph->metrics.bbox.yMax+63) & -64;
- }
-
- /* get the device-independent scaled horizontal metrics */
- /* take care of fixed-pitch fonts... */
- {
- TT_Pos left_bearing;
- TT_Pos advance;
-
-
- left_bearing = subglyph->metrics.horiBearingX;
- advance = subglyph->metrics.horiAdvance;
-
- if ( face->postscript.isFixedPitch )
- advance = face->horizontalHeader.advance_Width_Max;
-
- if ( load_flags & TTLOAD_SCALE_GLYPH )
- {
- left_bearing = Scale_X( &exec->metrics, left_bearing );
- advance = Scale_X( &exec->metrics, advance );
- }
-
- glyph->metrics.linearHoriBearingX = left_bearing;
- glyph->metrics.linearHoriAdvance = advance;
- }
-
- glyph->metrics.horiBearingX = glyph->metrics.bbox.xMin;
- glyph->metrics.horiBearingY = glyph->metrics.bbox.yMax;
- glyph->metrics.horiAdvance = subglyph->pp2.x - subglyph->pp1.x;
-
- /* Now take care of vertical metrics. In the case where there is */
- /* no vertical information within the font (relatively common), make */
- /* up some metrics `by hand' ... */
-
- {
- Short top_bearing; /* vertical top side bearing (EM units) */
- UShort advance_height; /* vertical advance height (EM units) */
-
- TT_Pos left; /* scaled vertical left side bearing */
- TT_Pos orig_top; /* scaled original vertical top side bearing */
- TT_Pos top; /* scaled vertical top side bearing */
- TT_Pos advance; /* scaled vertical advance height */
-
-
- /* Get the unscaled `tsb' and `ah' values */
- if ( face->verticalInfo &&
- face->verticalHeader.number_Of_VMetrics > 0 )
- {
- /* Don't assume that both the vertical header and vertical */
- /* metrics are present in the same font :-) */
-
- TT_Get_Metrics( (TT_Horizontal_Header*)&face->verticalHeader,
- glyph_index,
- &top_bearing,
- &advance_height );
- }
- else
- {
-
- /* Make up the distances from the horizontal header.. */
-
- /* NOTE: The OS/2 values are the only `portable' ones, */
- /* which is why we use them... */
- /* */
- /* NOTE2: The sTypoDescender is negative, which is why */
- /* we compute the baseline-to-baseline distance */
- /* here with : */
- /* ascender - descender + linegap */
- /* */
-
-/* XXX What happens here with these Apple fonts without OS/2 table ? */
-
- top_bearing = (Short) (face->os2.sTypoLineGap / 2);
- advance_height = (UShort)(face->os2.sTypoAscender -
- face->os2.sTypoDescender +
- face->os2.sTypoLineGap);
- }
-
- /* We must adjust the top_bearing value from the bounding box */
- /* given in the glyph header to te bounding box calculated with */
- /* TT_Get_Outline_BBox() */
-
- /* scale the metrics */
- if ( load_flags & TTLOAD_SCALE_GLYPH )
- {
- orig_top = Scale_Y( &exec->metrics, top_bearing );
- top = Scale_Y( &exec->metrics,
- top_bearing + subglyph->metrics.bbox.yMax ) -
- glyph->metrics.bbox.yMax;
- advance = Scale_Y( &exec->metrics, advance_height );
- }
- else
- {
- orig_top = top_bearing;
- top = top_bearing + subglyph->metrics.bbox.yMax -
- glyph->metrics.bbox.yMax;
- advance = advance_height;
- }
-
- glyph->metrics.linearVertBearingY = orig_top;
- glyph->metrics.linearVertAdvance = advance;
-
- /* XXX : for now, we have no better algo for the lsb, but it should */
- /* work ok.. */
- /* */
- left = ( glyph->metrics.bbox.xMin - glyph->metrics.bbox.xMax ) / 2;
-
- /* grid-fit them if necessary */
- if ( subglyph->is_hinted )
- {
- left &= -64;
- top = (top + 63) & -64;
- advance = (advance + 32) & -64;
- }
-
- glyph->metrics.vertBearingX = left;
- glyph->metrics.vertBearingY = top;
- glyph->metrics.vertAdvance = advance;
- }
-
- /* Adjust advance width to the value contained in the hdmx table. */
- if ( !exec->face->postscript.isFixedPitch && instance &&
- subglyph->is_hinted )
- {
- widths = Get_Advance_Widths( exec->face,
- exec->instance->metrics.x_ppem );
- if ( widths )
- glyph->metrics.horiAdvance = widths[glyph_index] << 6;
- }
-
- glyph->outline.dropout_mode = (Char)exec->GS.scan_type;
-
- error = TT_Err_Ok;
-
- Fail_File:
- Fail:
- DONE_Stream( stream );
-
- Fin:
-
- /* reset the execution context */
- exec->pts = base_pts;
-
- if ( !instance || !instance->debug )
- Done_Context( exec );
-
- return error;
- }
-
-
-/* END */