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-rw-r--r--Build/source/texk/dvisvgm/dvisvgm-src/libs/ff-woff/fontforge/dumppfa.c131
1 files changed, 131 insertions, 0 deletions
diff --git a/Build/source/texk/dvisvgm/dvisvgm-src/libs/ff-woff/fontforge/dumppfa.c b/Build/source/texk/dvisvgm/dvisvgm-src/libs/ff-woff/fontforge/dumppfa.c
new file mode 100644
index 00000000000..4a58d1ea6df
--- /dev/null
+++ b/Build/source/texk/dvisvgm/dvisvgm-src/libs/ff-woff/fontforge/dumppfa.c
@@ -0,0 +1,131 @@
+/* Copyright (C) 2000-2012 by George Williams */
+/*
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+
+ * The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "fontforge.h"
+#include <math.h>
+
+#ifdef __CygWin
+ #include <sys/types.h>
+ #include <sys/stat.h>
+ #include <unistd.h>
+#endif
+
+char *PSDictHasEntry(struct psdict *dict, const char *key) {
+ int i;
+
+ if ( dict==NULL )
+return( NULL );
+
+ for ( i=0; i<dict->next; ++i )
+ if ( strcmp(dict->keys[i],key)==0 )
+return( dict->values[i] );
+
+return( NULL );
+}
+
+int PSDictSame(struct psdict *dict1, struct psdict *dict2) {
+ int i;
+
+ if ( (dict1==NULL || dict1->cnt==0) && (dict2==NULL || dict2->cnt==0))
+return( true );
+ if ( dict1==NULL || dict2==NULL || dict1->cnt!=dict2->cnt )
+return( false );
+
+ for ( i=0; i<dict1->cnt; ++i ) {
+ char *val = PSDictHasEntry(dict2,dict1->keys[i]);
+ if ( val==NULL || strcmp(val,dict1->values[i])!=0 )
+return( false );
+ }
+return( true );
+}
+
+/* Inside a font, I can't use a <stdin> as a data source. Probably because */
+/* the parser doesn't know what to do with those data when building the char */
+/* proc (as opposed to executing) */
+/* So I can't use run length filters or other compression technique */
+
+static double FindMaxDiffOfBlues(char *pt, double max_diff) {
+ char *end;
+ double p1, p2;
+
+ while ( *pt==' ' || *pt=='[' ) ++pt;
+ for (;;) {
+ p1 = strtod(pt,&end);
+ if ( end==pt )
+ break;
+ pt = end;
+ p2 = strtod(pt,&end);
+ if ( end==pt )
+ break;
+ if ( p2-p1 >max_diff ) max_diff = p2-p1;
+ pt = end;
+ }
+return( max_diff );
+}
+
+double BlueScaleFigureForced(struct psdict *private_,real bluevalues[], real otherblues[]) {
+ double max_diff=0;
+ char *pt;
+ int i;
+
+ pt = PSDictHasEntry(private_,"BlueValues");
+ if ( pt!=NULL ) {
+ max_diff = FindMaxDiffOfBlues(pt,max_diff);
+ } else if ( bluevalues!=NULL ) {
+ for ( i=0; i<14 && (bluevalues[i]!=0 || bluevalues[i+1])!=0; i+=2 ) {
+ if ( bluevalues[i+1] - bluevalues[i]>=max_diff )
+ max_diff = bluevalues[i+1] - bluevalues[i];
+ }
+ }
+ pt = PSDictHasEntry(private_,"FamilyBlues");
+ if ( pt!=NULL )
+ max_diff = FindMaxDiffOfBlues(pt,max_diff);
+
+ pt = PSDictHasEntry(private_,"OtherBlues");
+ if ( pt!=NULL )
+ max_diff = FindMaxDiffOfBlues(pt,max_diff);
+ else if ( otherblues!=NULL ) {
+ for ( i=0; i<10 && (otherblues[i]!=0 || otherblues[i+1]!=0); i+=2 ) {
+ if ( otherblues[i+1] - otherblues[i]>=max_diff )
+ max_diff = otherblues[i+1] - otherblues[i];
+ }
+ }
+ pt = PSDictHasEntry(private_,"FamilyOtherBlues");
+ if ( pt!=NULL )
+ max_diff = FindMaxDiffOfBlues(pt,max_diff);
+ if ( max_diff<=0 )
+return( -1 );
+ if ( 1/max_diff > .039625 )
+return( -1 );
+
+ return rint(240.0*0.99/max_diff)/240.0;
+}
+
+double BlueScaleFigure(struct psdict *private_,real bluevalues[], real otherblues[]) {
+ if ( PSDictHasEntry(private_,"BlueScale")!=NULL )
+return( -1 );
+ return BlueScaleFigureForced(private_, bluevalues, otherblues);
+}