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SF.net SVN: matplotlib:[8438] trunk/matplotlib/ttconv/pprdrv_tt2.cpp
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From: <md...@us...> - 2010-06-15 19:32:30
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Revision: 8438
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=8438&view=rev
Author: mdboom
Date: 2010-06-15 19:32:24 +0000 (Tue, 15 Jun 2010)
Log Message:
-----------
Fix out-of-buffer read errors.
Modified Paths:
--------------
trunk/matplotlib/ttconv/pprdrv_tt2.cpp
Modified: trunk/matplotlib/ttconv/pprdrv_tt2.cpp
===================================================================
--- trunk/matplotlib/ttconv/pprdrv_tt2.cpp 2010-06-15 19:10:19 UTC (rev 8437)
+++ trunk/matplotlib/ttconv/pprdrv_tt2.cpp 2010-06-15 19:32:24 UTC (rev 8438)
@@ -50,13 +50,13 @@
int advance_width;
/* Variables to hold the character data. */
- int *epts_ctr; /* array of contour endpoints */
- int num_pts, num_ctr; /* number of points, number of coutours */
- FWord *xcoor, *ycoor; /* arrays of x and y coordinates */
- BYTE *tt_flags; /* array of TrueType flags */
+ int *epts_ctr; /* array of contour endpoints */
+ int num_pts, num_ctr; /* number of points, number of coutours */
+ FWord *xcoor, *ycoor; /* arrays of x and y coordinates */
+ BYTE *tt_flags; /* array of TrueType flags */
double *area_ctr;
char *check_ctr;
- int *ctrset; /* in contour index followed by out contour index */
+ int *ctrset; /* in contour index followed by out contour index */
int stack_depth; /* A book-keeping variable for keeping track of the depth of the PS stack */
@@ -100,31 +100,31 @@
*/
void GlyphToType3::stack(TTStreamWriter& stream, int new_elem)
{
- if( !pdf_mode && num_pts > 25 ) /* Only do something of we will */
- { /* have a log of points. */
- if(stack_depth == 0)
- {
- stream.put_char('{');
- stack_depth=1;
- }
+ if( !pdf_mode && num_pts > 25 ) /* Only do something of we will */
+ { /* have a log of points. */
+ if(stack_depth == 0)
+ {
+ stream.put_char('{');
+ stack_depth=1;
+ }
- stack_depth += new_elem; /* Account for what we propose to add */
+ stack_depth += new_elem; /* Account for what we propose to add */
- if(stack_depth > 100)
- {
- stream.puts("}_e{");
- stack_depth = 3 + new_elem; /* A rough estimate */
- }
- }
+ if(stack_depth > 100)
+ {
+ stream.puts("}_e{");
+ stack_depth = 3 + new_elem; /* A rough estimate */
+ }
+ }
} /* end of stack() */
-void GlyphToType3::stack_end(TTStreamWriter& stream) /* called at end */
+void GlyphToType3::stack_end(TTStreamWriter& stream) /* called at end */
{
if( !pdf_mode && stack_depth )
- {
- stream.puts("}_e");
- stack_depth=0;
- }
+ {
+ stream.puts("}_e");
+ stack_depth=0;
+ }
} /* end of stack_end() */
/*
@@ -163,79 +163,79 @@
area_ctr[0]=area(xcoor, ycoor, epts_ctr[0]+1);
for (i=1; i<num_ctr; i++)
- area_ctr[i]=area(xcoor+epts_ctr[i-1]+1, ycoor+epts_ctr[i-1]+1, epts_ctr[i]-epts_ctr[i-1]);
+ area_ctr[i]=area(xcoor+epts_ctr[i-1]+1, ycoor+epts_ctr[i-1]+1, epts_ctr[i]-epts_ctr[i-1]);
for (i=0; i<num_ctr; i++)
- {
- if (area_ctr[i]>0)
- {
- ctrset[2*i]=i; ctrset[2*i+1]=nearout(i);
- }
- else
- {
- ctrset[2*i]=-1; ctrset[2*i+1]=-1;
- }
- }
+ {
+ if (area_ctr[i]>0)
+ {
+ ctrset[2*i]=i; ctrset[2*i+1]=nearout(i);
+ }
+ else
+ {
+ ctrset[2*i]=-1; ctrset[2*i+1]=-1;
+ }
+ }
/* Step thru the coutours. */
/* I believe that a contour is a detatched */
/* set of curves and lines. */
i=j=k=0;
while( i < num_ctr )
- {
- fst = j = (k==0) ? 0 : (epts_ctr[k-1]+1);
+ {
+ fst = j = (k==0) ? 0 : (epts_ctr[k-1]+1);
- /* Move to the first point on the contour. */
- stack(stream, 3);
- PSMoveto(stream,xcoor[j],ycoor[j]);
+ /* Move to the first point on the contour. */
+ stack(stream, 3);
+ PSMoveto(stream,xcoor[j],ycoor[j]);
- start_offpt = 0; /* No off curve points yet. */
+ start_offpt = 0; /* No off curve points yet. */
- /* Step thru the remaining points of this contour. */
- for(j++; j <= epts_ctr[k]; j++)
- {
- if (!(tt_flags[j]&1)) /* Off curve */
- {
- if (!start_offpt)
- { start_offpt = end_offpt = j; }
- else
- end_offpt++;
- }
- else
- { /* On Curve */
- if (start_offpt)
- {
- stack(stream, 7);
- PSCurveto(stream, xcoor[j],ycoor[j],start_offpt,end_offpt);
- start_offpt = 0;
- }
- else
- {
+ /* Step thru the remaining points of this contour. */
+ for(j++; j <= epts_ctr[k]; j++)
+ {
+ if (!(tt_flags[j]&1)) /* Off curve */
+ {
+ if (!start_offpt)
+ { start_offpt = end_offpt = j; }
+ else
+ end_offpt++;
+ }
+ else
+ { /* On Curve */
+ if (start_offpt)
+ {
+ stack(stream, 7);
+ PSCurveto(stream, xcoor[j],ycoor[j],start_offpt,end_offpt);
+ start_offpt = 0;
+ }
+ else
+ {
stack(stream, 3);
- PSLineto(stream, xcoor[j], ycoor[j]);
- }
- }
- }
+ PSLineto(stream, xcoor[j], ycoor[j]);
+ }
+ }
+ }
- /* Do the final curve or line */
- /* of this coutour. */
- if (start_offpt)
- {
- stack(stream, 7); PSCurveto(stream, xcoor[fst],ycoor[fst],start_offpt,end_offpt);
- }
- else
- {
- stack(stream, 3); PSLineto(stream, xcoor[fst],ycoor[fst]);
- }
+ /* Do the final curve or line */
+ /* of this coutour. */
+ if (start_offpt)
+ {
+ stack(stream, 7); PSCurveto(stream, xcoor[fst],ycoor[fst],start_offpt,end_offpt);
+ }
+ else
+ {
+ stack(stream, 3); PSLineto(stream, xcoor[fst],ycoor[fst]);
+ }
- k=nextinctr(i,k);
+ k=nextinctr(i,k);
- if (k==NOMOREINCTR)
- i=k=nextoutctr(i);
+ if (k==NOMOREINCTR)
+ i=k=nextoutctr(i);
- if (i==NOMOREOUTCTR)
- break;
- }
+ if (i==NOMOREOUTCTR)
+ break;
+ }
/* Now, we can fill the whole thing. */
stack(stream, 1);
@@ -251,98 +251,104 @@
} /* end of PSConvert() */
int GlyphToType3::nextoutctr(int co)
- {
- int j;
+ {
+ int j;
- for(j=0; j<num_ctr; j++)
- if (check_ctr[j]==0 && area_ctr[j] < 0) {
- check_ctr[j]=1;
- return j;
- }
+ for(j=0; j<num_ctr; j++)
+ if (check_ctr[j]==0 && area_ctr[j] < 0) {
+ check_ctr[j]=1;
+ return j;
+ }
- return NOMOREOUTCTR;
- } /* end of nextoutctr() */
+ return NOMOREOUTCTR;
+ } /* end of nextoutctr() */
int GlyphToType3::nextinctr(int co, int ci)
- {
- int j;
+ {
+ int j;
- for(j=0; j<num_ctr; j++)
+ for(j=0; j<num_ctr; j++)
if (ctrset[2*j+1]==co)
if (check_ctr[ctrset[2*j]]==0) {
- check_ctr[ctrset[2*j]]=1;
- return ctrset[2*j];
- }
+ check_ctr[ctrset[2*j]]=1;
+ return ctrset[2*j];
+ }
- return NOMOREINCTR;
- }
+ return NOMOREINCTR;
+ }
/*
** find the nearest out contour to a specified in contour.
*/
int GlyphToType3::nearout(int ci)
{
- int k = 0; /* !!! is this right? */
+ int k = 0; /* !!! is this right? */
int co;
double a, a1=0;
for (co=0; co < num_ctr; co++)
- {
- if(area_ctr[co] < 0)
- {
- a=intest(co,ci);
- if (a<0 && a1==0)
- {
- k=co;
- a1=a;
- }
- if(a<0 && a1!=0 && a>a1)
- {
- k=co;
- a1=a;
- }
- }
- }
+ {
+ if(area_ctr[co] < 0)
+ {
+ a=intest(co,ci);
+ if (a<0 && a1==0)
+ {
+ k=co;
+ a1=a;
+ }
+ if(a<0 && a1!=0 && a>a1)
+ {
+ k=co;
+ a1=a;
+ }
+ }
+ }
return k;
} /* end of nearout() */
double GlyphToType3::intest(int co, int ci)
- {
- int i, j, start, end;
- double r1, r2, a;
- FWord xi[3], yi[3];
+ {
+ int i, j, start, end;
+ double r1, r2, a;
+ FWord xi[3], yi[3];
- j=start=(co==0)?0:(epts_ctr[co-1]+1);
- end=epts_ctr[co];
- i=(ci==0)?0:(epts_ctr[ci-1]+1);
- xi[0] = xcoor[i];
- yi[0] = ycoor[i];
- r1=sqr(xcoor[start] - xi[0]) + sqr(ycoor[start] - yi[0]);
+ j=start=(co==0)?0:(epts_ctr[co-1]+1);
+ end=epts_ctr[co];
+ i=(ci==0)?0:(epts_ctr[ci-1]+1);
+ xi[0] = xcoor[i];
+ yi[0] = ycoor[i];
+ r1=sqr(xcoor[start] - xi[0]) + sqr(ycoor[start] - yi[0]);
- for (i=start; i<=end; i++) {
- r2 = sqr(xcoor[i] - xi[0])+sqr(ycoor[i] - yi[0]);
- if (r2 < r1) {
- r1=r2; j=i;
- }
- }
- xi[1]=xcoor[j-1]; yi[1]=ycoor[j-1];
- xi[2]=xcoor[j+1]; yi[2]=ycoor[j+1];
- if (j==start) { xi[1]=xcoor[end]; yi[1]=ycoor[end]; }
- if (j==end) { xi[2]=xcoor[start]; yi[2]=ycoor[start]; }
- a=area(xi, yi, 3);
+ for (i=start; i<=end; i++) {
+ r2 = sqr(xcoor[i] - xi[0])+sqr(ycoor[i] - yi[0]);
+ if (r2 < r1) {
+ r1=r2; j=i;
+ }
+ }
+ if (j==start) {
+ xi[1]=xcoor[end]; yi[1]=ycoor[end];
+ } else {
+ xi[1]=xcoor[j-1]; yi[1]=ycoor[j-1];
+ }
+ if (j==end) {
+ xi[2]=xcoor[start]; yi[2]=ycoor[start];
+ } else {
+ xi[2]=xcoor[j+1]; yi[2]=ycoor[j+1];
+ }
+ a=area(xi, yi, 3);
- return a;
- } /* end of intest() */
+ return a;
+ } /* end of intest() */
void GlyphToType3::PSMoveto(TTStreamWriter& stream, int x, int y) {
stream.printf(pdf_mode ? "%d %d m\n" : "%d %d _m\n",
- x, y);
+ x, y);
}
void GlyphToType3::PSLineto(TTStreamWriter& stream, int x, int y) {
stream.printf(pdf_mode ? "%d %d l\n" : "%d %d _l\n",
- x, y);
+ x, y);
}
/*
@@ -355,26 +361,26 @@
N = t-s+2;
for(i=0; i<N-1; i++)
- {
- sx[0] = i==0?xcoor[s-1]:(xcoor[i+s]+xcoor[i+s-1])/2;
- sy[0] = i==0?ycoor[s-1]:(ycoor[i+s]+ycoor[i+s-1])/2;
- sx[1] = xcoor[s+i];
- sy[1] = ycoor[s+i];
- sx[2] = i==N-2?x:(xcoor[s+i]+xcoor[s+i+1])/2;
- sy[2] = i==N-2?y:(ycoor[s+i]+ycoor[s+i+1])/2;
- cx[3] = sx[2];
- cy[3] = sy[2];
- cx[1] = (2*sx[1]+sx[0])/3;
- cy[1] = (2*sy[1]+sy[0])/3;
- cx[2] = (sx[2]+2*sx[1])/3;
- cy[2] = (sy[2]+2*sy[1])/3;
+ {
+ sx[0] = i==0?xcoor[s-1]:(xcoor[i+s]+xcoor[i+s-1])/2;
+ sy[0] = i==0?ycoor[s-1]:(ycoor[i+s]+ycoor[i+s-1])/2;
+ sx[1] = xcoor[s+i];
+ sy[1] = ycoor[s+i];
+ sx[2] = i==N-2?x:(xcoor[s+i]+xcoor[s+i+1])/2;
+ sy[2] = i==N-2?y:(ycoor[s+i]+ycoor[s+i+1])/2;
+ cx[3] = sx[2];
+ cy[3] = sy[2];
+ cx[1] = (2*sx[1]+sx[0])/3;
+ cy[1] = (2*sy[1]+sy[0])/3;
+ cx[2] = (sx[2]+2*sx[1])/3;
+ cy[2] = (sy[2]+2*sy[1])/3;
- stream.printf(pdf_mode ?
- "%d %d %d %d %d %d c\n" :
- "%d %d %d %d %d %d _c\n",
- (int)cx[1], (int)cy[1], (int)cx[2], (int)cy[2],
- (int)cx[3], (int)cy[3]);
- }
+ stream.printf(pdf_mode ?
+ "%d %d %d %d %d %d c\n" :
+ "%d %d %d %d %d %d _c\n",
+ (int)cx[1], (int)cy[1], (int)cx[2], (int)cy[2],
+ (int)cx[3], (int)cy[3]);
+ }
} /* end of PSCurveto() */
/*
@@ -382,10 +388,10 @@
** the data for the last simple glyph.
*/
GlyphToType3::~GlyphToType3() {
- free(tt_flags); /* The flags array */
- free(xcoor); /* The X coordinates */
- free(ycoor); /* The Y coordinates */
- free(epts_ctr); /* The array of contour endpoints */
+ free(tt_flags); /* The flags array */
+ free(xcoor); /* The X coordinates */
+ free(ycoor); /* The Y coordinates */
+ free(epts_ctr); /* The array of contour endpoints */
// These last three should be NULL. Just
// free'ing them for safety.
free(area_ctr);
@@ -406,10 +412,10 @@
/* Read the contour endpoints list. */
epts_ctr = (int *)calloc(num_ctr,sizeof(int));
for (x = 0; x < num_ctr; x++)
- {
- epts_ctr[x] = getUSHORT(glyph);
- glyph += 2;
- }
+ {
+ epts_ctr[x] = getUSHORT(glyph);
+ glyph += 2;
+ }
/* From the endpoint of the last contour, we can */
/* determine the number of points. */
@@ -432,71 +438,71 @@
/* Read the flags array, uncompressing it as we go. */
/* There is danger of overflow here. */
for (x = 0; x < num_pts; )
- {
- tt_flags[x++] = c = *(glyph++);
+ {
+ tt_flags[x++] = c = *(glyph++);
- if (c&8) /* If next byte is repeat count, */
- {
- ct = *(glyph++);
+ if (c&8) /* If next byte is repeat count, */
+ {
+ ct = *(glyph++);
- if( (x + ct) > num_pts )
- throw TTException("Error in TT flags");
+ if( (x + ct) > num_pts )
+ throw TTException("Error in TT flags");
- while (ct--)
- tt_flags[x++] = c;
- }
- }
+ while (ct--)
+ tt_flags[x++] = c;
+ }
+ }
/* Read the x coordinates */
for (x = 0; x < num_pts; x++)
- {
- if (tt_flags[x] & 2) /* one byte value with */
- { /* external sign */
- c = *(glyph++);
- xcoor[x] = (tt_flags[x] & 0x10) ? c : (-1 * (int)c);
- }
- else if(tt_flags[x] & 0x10) /* repeat last */
- {
- xcoor[x] = 0;
- }
- else /* two byte signed value */
- {
- xcoor[x] = getFWord(glyph);
- glyph+=2;
- }
- }
+ {
+ if (tt_flags[x] & 2) /* one byte value with */
+ { /* external sign */
+ c = *(glyph++);
+ xcoor[x] = (tt_flags[x] & 0x10) ? c : (-1 * (int)c);
+ }
+ else if(tt_flags[x] & 0x10) /* repeat last */
+ {
+ xcoor[x] = 0;
+ }
+ else /* two byte signed value */
+ {
+ xcoor[x] = getFWord(glyph);
+ glyph+=2;
+ }
+ }
/* Read the y coordinates */
for(x = 0; x < num_pts; x++)
- {
- if (tt_flags[x] & 4) /* one byte value with */
- { /* external sign */
- c = *(glyph++);
- ycoor[x] = (tt_flags[x] & 0x20) ? c : (-1 * (int)c);
- }
- else if (tt_flags[x] & 0x20) /* repeat last value */
- {
- ycoor[x] = 0;
- }
- else /* two byte signed value */
- {
- ycoor[x] = getUSHORT(glyph);
- glyph+=2;
- }
- }
+ {
+ if (tt_flags[x] & 4) /* one byte value with */
+ { /* external sign */
+ c = *(glyph++);
+ ycoor[x] = (tt_flags[x] & 0x20) ? c : (-1 * (int)c);
+ }
+ else if (tt_flags[x] & 0x20) /* repeat last value */
+ {
+ ycoor[x] = 0;
+ }
+ else /* two byte signed value */
+ {
+ ycoor[x] = getUSHORT(glyph);
+ glyph+=2;
+ }
+ }
/* Convert delta values to absolute values. */
for(x = 1; x < num_pts; x++)
- {
- xcoor[x] += xcoor[x-1];
- ycoor[x] += ycoor[x-1];
- }
+ {
+ xcoor[x] += xcoor[x-1];
+ ycoor[x] += ycoor[x-1];
+ }
for(x=0; x < num_pts; x++)
- {
- xcoor[x] = topost(xcoor[x]);
- ycoor[x] = topost(ycoor[x]);
- }
+ {
+ xcoor[x] = topost(xcoor[x]);
+ ycoor[x] = topost(ycoor[x]);
+ }
} /* end of load_char() */
@@ -515,101 +521,101 @@
USHORT scale10;
/* Once around this loop for each component. */
- do {
- flags = getUSHORT(glyph); /* read the flags word */
- glyph += 2;
+ do {
+ flags = getUSHORT(glyph); /* read the flags word */
+ glyph += 2;
- glyphIndex = getUSHORT(glyph); /* read the glyphindex word */
- glyph += 2;
+ glyphIndex = getUSHORT(glyph); /* read the glyphindex word */
+ glyph += 2;
- if(flags & ARG_1_AND_2_ARE_WORDS)
- { /* The tt spec. seems to say these are signed. */
- arg1 = getSHORT(glyph);
- glyph += 2;
- arg2 = getSHORT(glyph);
- glyph += 2;
- }
- else /* The tt spec. does not clearly indicate */
- { /* whether these values are signed or not. */
+ if(flags & ARG_1_AND_2_ARE_WORDS)
+ { /* The tt spec. seems to say these are signed. */
+ arg1 = getSHORT(glyph);
+ glyph += 2;
+ arg2 = getSHORT(glyph);
+ glyph += 2;
+ }
+ else /* The tt spec. does not clearly indicate */
+ { /* whether these values are signed or not. */
arg1 = *(signed char *)(glyph++);
arg2 = *(signed char *)(glyph++);
- }
+ }
- if(flags & WE_HAVE_A_SCALE)
- {
- xscale = yscale = getUSHORT(glyph);
- glyph += 2;
- scale01 = scale10 = 0;
- }
- else if(flags & WE_HAVE_AN_X_AND_Y_SCALE)
- {
- xscale = getUSHORT(glyph);
- glyph += 2;
- yscale = getUSHORT(glyph);
- glyph += 2;
- scale01 = scale10 = 0;
- }
- else if(flags & WE_HAVE_A_TWO_BY_TWO)
- {
- xscale = getUSHORT(glyph);
- glyph += 2;
- scale01 = getUSHORT(glyph);
- glyph += 2;
- scale10 = getUSHORT(glyph);
- glyph += 2;
- yscale = getUSHORT(glyph);
- glyph += 2;
- }
- else
- {
- xscale = yscale = scale01 = scale10 = 0;
- }
+ if(flags & WE_HAVE_A_SCALE)
+ {
+ xscale = yscale = getUSHORT(glyph);
+ glyph += 2;
+ scale01 = scale10 = 0;
+ }
+ else if(flags & WE_HAVE_AN_X_AND_Y_SCALE)
+ {
+ xscale = getUSHORT(glyph);
+ glyph += 2;
+ yscale = getUSHORT(glyph);
+ glyph += 2;
+ scale01 = scale10 = 0;
+ }
+ else if(flags & WE_HAVE_A_TWO_BY_TWO)
+ {
+ xscale = getUSHORT(glyph);
+ glyph += 2;
+ scale01 = getUSHORT(glyph);
+ glyph += 2;
+ scale10 = getUSHORT(glyph);
+ glyph += 2;
+ yscale = getUSHORT(glyph);
+ glyph += 2;
+ }
+ else
+ {
+ xscale = yscale = scale01 = scale10 = 0;
+ }
- /* Debugging */
- #ifdef DEBUG_TRUETYPE
- stream.printf("%% flags=%d, arg1=%d, arg2=%d, xscale=%d, yscale=%d, scale01=%d, scale10=%d\n",
- (int)flags,arg1,arg2,(int)xscale,(int)yscale,(int)scale01,(int)scale10);
- #endif
+ /* Debugging */
+ #ifdef DEBUG_TRUETYPE
+ stream.printf("%% flags=%d, arg1=%d, arg2=%d, xscale=%d, yscale=%d, scale01=%d, scale10=%d\n",
+ (int)flags,arg1,arg2,(int)xscale,(int)yscale,(int)scale01,(int)scale10);
+ #endif
- if (pdf_mode) {
- if ( flags & ARGS_ARE_XY_VALUES ) {
- /* We should have been able to use 'Do' to reference the
- subglyph here. However, that doesn't seem to work with
- xpdf or gs (only acrobat), so instead, this just includes
- the subglyph here inline. */
- stream.printf("q 1 0 0 1 %d %d cm\n", topost(arg1), topost(arg2));
- } else {
- stream.printf("%% unimplemented shift, arg1=%d, arg2=%d\n",arg1,arg2);
- }
- GlyphToType3(stream, font, glyphIndex, true);
- if ( flags & ARGS_ARE_XY_VALUES ) {
- stream.printf("\nQ\n");
- }
- } else {
- /* If we have an (X,Y) shif and it is non-zero, */
- /* translate the coordinate system. */
- if( flags & ARGS_ARE_XY_VALUES )
- {
- if( arg1 != 0 || arg2 != 0 )
- stream.printf("gsave %d %d translate\n", topost(arg1), topost(arg2) );
- }
- else
- {
- stream.printf("%% unimplemented shift, arg1=%d, arg2=%d\n",arg1,arg2);
- }
+ if (pdf_mode) {
+ if ( flags & ARGS_ARE_XY_VALUES ) {
+ /* We should have been able to use 'Do' to reference the
+ subglyph here. However, that doesn't seem to work with
+ xpdf or gs (only acrobat), so instead, this just includes
+ the subglyph here inline. */
+ stream.printf("q 1 0 0 1 %d %d cm\n", topost(arg1), topost(arg2));
+ } else {
+ stream.printf("%% unimplemented shift, arg1=%d, arg2=%d\n",arg1,arg2);
+ }
+ GlyphToType3(stream, font, glyphIndex, true);
+ if ( flags & ARGS_ARE_XY_VALUES ) {
+ stream.printf("\nQ\n");
+ }
+ } else {
+ /* If we have an (X,Y) shif and it is non-zero, */
+ /* translate the coordinate system. */
+ if( flags & ARGS_ARE_XY_VALUES )
+ {
+ if( arg1 != 0 || arg2 != 0 )
+ stream.printf("gsave %d %d translate\n", topost(arg1), topost(arg2) );
+ }
+ else
+ {
+ stream.printf("%% unimplemented shift, arg1=%d, arg2=%d\n",arg1,arg2);
+ }
- /* Invoke the CharStrings procedure to print the component. */
- stream.printf("false CharStrings /%s get exec\n",
- ttfont_CharStrings_getname(font,glyphIndex));
+ /* Invoke the CharStrings procedure to print the component. */
+ stream.printf("false CharStrings /%s get exec\n",
+ ttfont_CharStrings_getname(font,glyphIndex));
- /* If we translated the coordinate system, */
- /* put it back the way it was. */
- if( flags & ARGS_ARE_XY_VALUES && (arg1 != 0 || arg2 != 0) ) {
- stream.puts("grestore ");
- }
- }
+ /* If we translated the coordinate system, */
+ /* put it back the way it was. */
+ if( flags & ARGS_ARE_XY_VALUES && (arg1 != 0 || arg2 != 0) ) {
+ stream.puts("grestore ");
+ }
+ }
- } while(flags & MORE_COMPONENTS);
+ } while(flags & MORE_COMPONENTS);
} /* end of do_composite() */
@@ -623,24 +629,24 @@
/* Read the glyph offset from the index to location table. */
if(font->indexToLocFormat == 0)
- {
- off = getUSHORT( font->loca_table + (charindex * 2) );
- off *= 2;
- length = getUSHORT( font->loca_table + ((charindex+1) * 2) );
- length *= 2;
- length -= off;
- }
+ {
+ off = getUSHORT( font->loca_table + (charindex * 2) );
+ off *= 2;
+ length = getUSHORT( font->loca_table + ((charindex+1) * 2) );
+ length *= 2;
+ length -= off;
+ }
else
- {
- off = getULONG( font->loca_table + (charindex * 4) );
- length = getULONG( font->loca_table + ((charindex+1) * 4) );
- length -= off;
- }
+ {
+ off = getULONG( font->loca_table + (charindex * 4) );
+ length = getULONG( font->loca_table + ((charindex+1) * 4) );
+ length -= off;
+ }
if(length > 0)
- return font->glyf_table + off;
+ return font->glyf_table + off;
else
- return (BYTE*)NULL;
+ return (BYTE*)NULL;
} /* end of find_glyph_data() */
@@ -663,61 +669,61 @@
/* If the character is blank, it has no bounding box, */
/* otherwise read the bounding box. */
if( glyph == (BYTE*)NULL )
- {
- llx=lly=urx=ury=0; /* A blank char has an all zero BoundingBox */
- num_ctr=0; /* Set this for later if()s */
- }
+ {
+ llx=lly=urx=ury=0; /* A blank char has an all zero BoundingBox */
+ num_ctr=0; /* Set this for later if()s */
+ }
else
- {
- /* Read the number of contours. */
- num_ctr = getSHORT(glyph);
+ {
+ /* Read the number of contours. */
+ num_ctr = getSHORT(glyph);
- /* Read PostScript bounding box. */
- llx = getFWord(glyph + 2);
- lly = getFWord(glyph + 4);
- urx = getFWord(glyph + 6);
- ury = getFWord(glyph + 8);
+ /* Read PostScript bounding box. */
+ llx = getFWord(glyph + 2);
+ lly = getFWord(glyph + 4);
+ urx = getFWord(glyph + 6);
+ ury = getFWord(glyph + 8);
- /* Advance the pointer. */
- glyph += 10;
- }
+ /* Advance the pointer. */
+ glyph += 10;
+ }
/* If it is a simple character, load its data. */
if (num_ctr > 0)
- load_char(font, glyph);
+ load_char(font, glyph);
else
num_pts=0;
/* Consult the horizontal metrics table to determine */
/* the character width. */
if( charindex < font->numberOfHMetrics )
- advance_width = getuFWord( font->hmtx_table + (charindex * 4) );
+ advance_width = getuFWord( font->hmtx_table + (charindex * 4) );
else
- advance_width = getuFWord( font->hmtx_table + ((font->numberOfHMetrics-1) * 4) );
+ advance_width = getuFWord( font->hmtx_table + ((font->numberOfHMetrics-1) * 4) );
/* Execute setcachedevice in order to inform the font machinery */
/* of the character bounding box and advance width. */
stack(stream, 7);
if (pdf_mode) {
- if (!embedded)
- stream.printf("%d 0 %d %d %d %d d1\n",
- topost(advance_width),
- topost(llx), topost(lly), topost(urx), topost(ury) );
+ if (!embedded)
+ stream.printf("%d 0 %d %d %d %d d1\n",
+ topost(advance_width),
+ topost(llx), topost(lly), topost(urx), topost(ury) );
} else
- stream.printf("%d 0 %d %d %d %d _sc\n",
- topost(advance_width),
- topost(llx), topost(lly), topost(urx), topost(ury) );
+ stream.printf("%d 0 %d %d %d %d _sc\n",
+ topost(advance_width),
+ topost(llx), topost(lly), topost(urx), topost(ury) );
/* If it is a simple glyph, convert it, */
/* otherwise, close the stack business. */
- if( num_ctr > 0 ) /* simple */
- {
+ if( num_ctr > 0 ) /* simple */
+ {
PSConvert(stream);
- }
- else if( num_ctr < 0 ) /* composite */
- {
- do_composite(stream, font, glyph);
- }
+ }
+ else if( num_ctr < 0 ) /* composite */
+ {
+ do_composite(stream, font, glyph);
+ }
stack_end(stream);
}
@@ -740,50 +746,50 @@
std::stack<int> glyph_stack;
for (std::vector<int>::iterator i = glyph_ids.begin();
- i != glyph_ids.end(); ++i) {
- glyph_stack.push(*i);
+ i != glyph_ids.end(); ++i) {
+ glyph_stack.push(*i);
}
while (glyph_stack.size()) {
- int gind = glyph_stack.top();
- glyph_stack.pop();
+ int gind = glyph_stack.top();
+ glyph_stack.pop();
- BYTE* glyph = find_glyph_data( font, gind );
- if (glyph != (BYTE*)NULL) {
+ BYTE* glyph = find_glyph_data( font, gind );
+ if (glyph != (BYTE*)NULL) {
- int num_ctr = getSHORT(glyph);
- if (num_ctr <= 0) { // This is a composite glyph
+ int num_ctr = getSHORT(glyph);
+ if (num_ctr <= 0) { // This is a composite glyph
- glyph += 10;
- USHORT flags = 0;
+ glyph += 10;
+ USHORT flags = 0;
- do {
- flags = getUSHORT(glyph);
- glyph += 2;
- gind = (int)getUSHORT(glyph);
- glyph += 2;
+ do {
+ flags = getUSHORT(glyph);
+ glyph += 2;
+ gind = (int)getUSHORT(glyph);
+ glyph += 2;
- std::vector<int>::iterator insertion =
- std::lower_bound(glyph_ids.begin(), glyph_ids.end(), gind);
- if (*insertion != gind) {
- glyph_ids.insert(insertion, gind);
- glyph_stack.push(gind);
- }
+ std::vector<int>::iterator insertion =
+ std::lower_bound(glyph_ids.begin(), glyph_ids.end(), gind);
+ if (*insertion != gind) {
+ glyph_ids.insert(insertion, gind);
+ glyph_stack.push(gind);
+ }
- if (flags & ARG_1_AND_2_ARE_WORDS)
- glyph += 4;
- else
- glyph += 2;
+ if (flags & ARG_1_AND_2_ARE_WORDS)
+ glyph += 4;
+ else
+ glyph += 2;
- if (flags & WE_HAVE_A_SCALE)
- glyph += 2;
- else if (flags & WE_HAVE_AN_X_AND_Y_SCALE)
- glyph += 4;
- else if (flags & WE_HAVE_A_TWO_BY_TWO)
- glyph += 8;
- } while (flags & MORE_COMPONENTS);
- }
- }
+ if (flags & WE_HAVE_A_SCALE)
+ glyph += 2;
+ else if (flags & WE_HAVE_AN_X_AND_Y_SCALE)
+ glyph += 4;
+ else if (flags & WE_HAVE_A_TWO_BY_TWO)
+ glyph += 8;
+ } while (flags & MORE_COMPONENTS);
+ }
+ }
}
}
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