Commit 3a8d0537b5b0cdf8594ffc5b7e385cac6d76aefa

Werner Lemberg 2015-02-20T08:35:32

[cff] Signedness fixes for basic infrastructure and old engine. * include/internal/pshints.h, src/cff/cffdrivr.c, src/cff/cffgload.c, src/cff/cffgload.h, src/cff/cffload.c, src/cff/cffobjs.c, src/cff/cffparse.c, src/pshinter/pshrec.c: Apply.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
diff --git a/ChangeLog b/ChangeLog
index f1d3669..f064cad 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2015-02-20  Werner Lemberg  <wl@gnu.org>
+
+	[cff] Signedness fixes for basic infrastructure and old engine.
+
+	* include/internal/pshints.h, src/cff/cffdrivr.c,
+	src/cff/cffgload.c, src/cff/cffgload.h, src/cff/cffload.c,
+	src/cff/cffobjs.c, src/cff/cffparse.c, src/pshinter/pshrec.c: Apply.
+
 2015-02-19  Werner Lemberg  <wl@gnu.org>
 
 	* src/truetype/ttgxvar.c (TT_Get_MM_Var): Ignore `countSizePairs'.
diff --git a/include/internal/pshints.h b/include/internal/pshints.h
index 21e4466..12aaaba 100644
--- a/include/internal/pshints.h
+++ b/include/internal/pshints.h
@@ -465,7 +465,7 @@ FT_BEGIN_HEADER
   typedef void
   (*T2_Hints_StemsFunc)( T2_Hints   hints,
                          FT_UInt    dimension,
-                         FT_UInt    count,
+                         FT_Int     count,
                          FT_Fixed*  coordinates );
 
 
diff --git a/src/cff/cffdrivr.c b/src/cff/cffdrivr.c
index 851dcbf..3f79854 100644
--- a/src/cff/cffdrivr.c
+++ b/src/cff/cffdrivr.c
@@ -352,7 +352,7 @@
       font_info->italic_angle        = dict->italic_angle;
       font_info->is_fixed_pitch      = dict->is_fixed_pitch;
       font_info->underline_position  = (FT_Short)dict->underline_position;
-      font_info->underline_thickness = (FT_Short)dict->underline_thickness;
+      font_info->underline_thickness = (FT_UShort)dict->underline_thickness;
 
       cff->font_info = font_info;
     }
diff --git a/src/cff/cffgload.c b/src/cff/cffgload.c
index 89abb1f..0afa745 100644
--- a/src/cff/cffgload.c
+++ b/src/cff/cffgload.c
@@ -337,11 +337,11 @@
   /*                                                                       */
   /* <Return>                                                              */
   /*    The bias value.                                                    */
-  static FT_Int
+  static FT_UInt
   cff_compute_bias( FT_Int   in_charstring_type,
                     FT_UInt  num_subrs )
   {
-    FT_Int  result;
+    FT_UInt  result;
 
 
     if ( in_charstring_type == 1 )
@@ -646,7 +646,7 @@
     for ( n = 0; n < cff->num_glyphs; n++ )
     {
       if ( cff->charset.sids[n] == glyph_sid )
-        return n;
+        return (FT_Int)n;
     }
 
     return -1;
@@ -672,7 +672,7 @@
 
 
       *pointer = (FT_Byte*)data.pointer;
-      *length = data.length;
+      *length  = (FT_ULong)data.length;
 
       return error;
     }
@@ -707,7 +707,7 @@
 
 
       data.pointer = *pointer;
-      data.length  = length;
+      data.length  = (FT_Int)length;
 
       face->root.internal->incremental_interface->funcs->free_glyph_data(
         face->root.internal->incremental_interface->object, &data );
@@ -819,7 +819,7 @@
     FT_GlyphLoader_Prepare( builder->loader );
 
     /* First load `bchar' in builder */
-    error = cff_get_glyph_data( face, bchar_index,
+    error = cff_get_glyph_data( face, (FT_UInt)bchar_index,
                                 &charstring, &charstring_len );
     if ( !error )
     {
@@ -849,7 +849,7 @@
     builder->pos_y = ady;
 
     /* Now load `achar' on top of the base outline. */
-    error = cff_get_glyph_data( face, achar_index,
+    error = cff_get_glyph_data( face, (FT_UInt)achar_index,
                                 &charstring, &charstring_len );
     if ( !error )
     {
@@ -922,10 +922,10 @@
     decoder->read_width = 1;
 
     /* compute random seed from stack address of parameter */
-    seed = (FT_Fixed)( ( (FT_PtrDist)(char*)&seed              ^
-                         (FT_PtrDist)(char*)&decoder           ^
-                         (FT_PtrDist)(char*)&charstring_base ) &
-                         FT_ULONG_MAX ) ;
+    seed = (FT_Fixed)( ( (FT_Offset)(char*)&seed            ^
+                         (FT_Offset)(char*)&decoder         ^
+                         (FT_Offset)(char*)&charstring_base ) &
+                         FT_ULONG_MAX                         );
     seed = ( seed ^ ( seed >> 10 ) ^ ( seed >> 20 ) ) & 0xFFFFL;
     if ( seed == 0 )
       seed = 0x7384;
@@ -1373,12 +1373,12 @@
           {
             if ( op == cff_op_hintmask )
               hinter->hintmask( hinter->hints,
-                                builder->current->n_points,
-                                decoder->num_hints,
+                                (FT_UInt)builder->current->n_points,
+                                (FT_UInt)decoder->num_hints,
                                 ip );
             else
               hinter->counter( hinter->hints,
-                               decoder->num_hints,
+                               (FT_UInt)decoder->num_hints,
                                ip );
           }
 
@@ -1995,7 +1995,7 @@
             if ( hinter )
             {
               if ( hinter->close( hinter->hints,
-                                  builder->current->n_points ) )
+                                  (FT_UInt)builder->current->n_points ) )
                 goto Syntax_Error;
 
               /* apply hints to the loaded glyph outline now */
@@ -2385,8 +2385,7 @@
 
         case cff_op_callsubr:
           {
-            FT_UInt  idx = (FT_UInt)( ( args[0] >> 16 ) +
-                                      decoder->locals_bias );
+            FT_UInt  idx = ( (FT_UInt)args[0] >> 16 ) + decoder->locals_bias;
 
 
             FT_TRACE4(( " callsubr(%d)\n", idx ));
@@ -2427,8 +2426,7 @@
 
         case cff_op_callgsubr:
           {
-            FT_UInt  idx = (FT_UInt)( ( args[0] >> 16 ) +
-                                      decoder->globals_bias );
+            FT_UInt  idx = ( (FT_UInt)args[0] >> 16 ) + decoder->globals_bias;
 
 
             FT_TRACE4(( " callgsubr(%d)\n", idx ));
@@ -2669,7 +2667,7 @@
         error = sfnt->load_sbit_image( face,
                                        size->strike_index,
                                        glyph_index,
-                                       (FT_Int)load_flags,
+                                       (FT_UInt)load_flags,
                                        stream,
                                        &glyph->root.bitmap,
                                        &metrics );
@@ -2757,16 +2755,16 @@
     /* this scaling is only relevant if the PS hinter isn't active */
     if ( cff->num_subfonts )
     {
-      FT_ULong  top_upm, sub_upm;
-      FT_Byte   fd_index = cff_fd_select_get( &cff->fd_select,
-                                              glyph_index );
+      FT_Long  top_upm, sub_upm;
+      FT_Byte  fd_index = cff_fd_select_get( &cff->fd_select,
+                                             glyph_index );
 
 
       if ( fd_index >= cff->num_subfonts )
         fd_index = (FT_Byte)( cff->num_subfonts - 1 );
 
-      top_upm = cff->top_font.font_dict.units_per_em;
-      sub_upm = cff->subfonts[fd_index]->font_dict.units_per_em;
+      top_upm = (FT_Long)cff->top_font.font_dict.units_per_em;
+      sub_upm = (FT_Long)cff->subfonts[fd_index]->font_dict.units_per_em;
 
 
       font_matrix = cff->subfonts[fd_index]->font_dict.font_matrix;
@@ -2884,7 +2882,7 @@
         {
           glyph->root.control_data = csindex->bytes +
                                      csindex->offsets[glyph_index] - 1;
-          glyph->root.control_len  = charstring_len;
+          glyph->root.control_len  = (FT_Long)charstring_len;
         }
       }
 
diff --git a/src/cff/cffgload.h b/src/cff/cffgload.h
index 5c52d43..39c5f32 100644
--- a/src/cff/cffgload.h
+++ b/src/cff/cffgload.h
@@ -178,8 +178,8 @@ FT_BEGIN_HEADER
     FT_UInt            num_locals;
     FT_UInt            num_globals;
 
-    FT_Int             locals_bias;
-    FT_Int             globals_bias;
+    FT_UInt            locals_bias;
+    FT_UInt            globals_bias;
 
     FT_Byte**          locals;
     FT_Byte**          globals;
diff --git a/src/cff/cffload.c b/src/cff/cffload.c
index 71ebaac..fcb7348 100644
--- a/src/cff/cffload.c
+++ b/src/cff/cffload.c
@@ -357,7 +357,7 @@
 
       case 3:
         for ( ; p < p_end; p += 3, poff++ )
-          poff[0] = FT_PEEK_OFF3( p );
+          poff[0] = FT_PEEK_UOFF3( p );
         break;
 
       default:
@@ -809,7 +809,7 @@
     /* When multiple GIDs map to the same CID, we choose the lowest */
     /* GID.  This is not described in any spec, but it matches the  */
     /* behaviour of recent Acroread versions.                       */
-    for ( j = num_glyphs - 1; j >= 0 ; j-- )
+    for ( j = (FT_Long)num_glyphs - 1; j >= 0 ; j-- )
       charset->cids[charset->sids[j]] = (FT_UShort)j;
 
     charset->max_cid    = max_cid;
@@ -1447,7 +1447,7 @@
     FT_ULong         base_offset;
     CFF_FontRecDict  dict;
     CFF_IndexRec     string_index;
-    FT_Int           subfont_index;
+    FT_UInt          subfont_index;
 
 
     FT_ZERO( font );
@@ -1495,9 +1495,9 @@
     if ( pure_cff )
     {
       /* well, we don't really forget the `disabled' fonts... */
-      subfont_index = face_index;
+      subfont_index = (FT_UInt)face_index;
 
-      if ( subfont_index >= (FT_Int)font->name_index.count )
+      if ( subfont_index >= font->name_index.count )
       {
         FT_ERROR(( "cff_font_load:"
                    " invalid subfont index for pure CFF font (%d)\n",
diff --git a/src/cff/cffobjs.c b/src/cff/cffobjs.c
index 65dc9b6..b1003a5 100644
--- a/src/cff/cffobjs.c
+++ b/src/cff/cffobjs.c
@@ -226,8 +226,8 @@
       CFF_Font      font     = (CFF_Font)face->extra.data;
       CFF_Internal  internal = (CFF_Internal)size->internal;
 
-      FT_ULong  top_upm  = font->top_font.font_dict.units_per_em;
-      FT_UInt   i;
+      FT_Long  top_upm  = (FT_Long)font->top_font.font_dict.units_per_em;
+      FT_UInt  i;
 
 
       funcs->set_scale( internal->topfont,
@@ -237,7 +237,7 @@
       for ( i = font->num_subfonts; i > 0; i-- )
       {
         CFF_SubFont  sub     = font->subfonts[i - 1];
-        FT_ULong     sub_upm = sub->font_dict.units_per_em;
+        FT_Long      sub_upm = (FT_Long)sub->font_dict.units_per_em;
         FT_Pos       x_scale, y_scale;
 
 
@@ -298,8 +298,8 @@
       CFF_Font      font     = (CFF_Font)cffface->extra.data;
       CFF_Internal  internal = (CFF_Internal)size->internal;
 
-      FT_ULong  top_upm  = font->top_font.font_dict.units_per_em;
-      FT_UInt   i;
+      FT_Long  top_upm  = (FT_Long)font->top_font.font_dict.units_per_em;
+      FT_UInt  i;
 
 
       funcs->set_scale( internal->topfont,
@@ -309,7 +309,7 @@
       for ( i = font->num_subfonts; i > 0; i-- )
       {
         CFF_SubFont  sub     = font->subfonts[i - 1];
-        FT_ULong     sub_upm = sub->font_dict.units_per_em;
+        FT_Long      sub_upm = (FT_Long)sub->font_dict.units_per_em;
         FT_Pos       x_scale, y_scale;
 
 
@@ -592,7 +592,7 @@
       /* Note that this is only necessary for pure CFF and CEF fonts; */
       /* SFNT based fonts use the `name' table instead.               */
 
-      cffface->num_glyphs = cff->num_glyphs;
+      cffface->num_glyphs = (FT_Long)cff->num_glyphs;
 
       dict = &cff->top_font.font_dict;
 
@@ -646,7 +646,7 @@
 
         if ( temp != 0x10000L )
         {
-          *upm = FT_DivFix( *upm, temp );
+          *upm = (FT_ULong)FT_DivFix( (FT_Long)*upm, temp );
 
           matrix->xx = FT_DivFix( matrix->xx, temp );
           matrix->yx = FT_DivFix( matrix->yx, temp );
@@ -682,7 +682,8 @@
           if ( top->has_font_matrix )
           {
             if ( top->units_per_em > 1 && sub->units_per_em > 1 )
-              scaling = FT_MIN( top->units_per_em, sub->units_per_em );
+              scaling = (FT_Long)FT_MIN( top->units_per_em,
+                                         sub->units_per_em );
             else
               scaling = 1;
 
@@ -693,9 +694,10 @@
                                         &top->font_matrix,
                                         scaling );
 
-            sub->units_per_em = FT_MulDiv( sub->units_per_em,
-                                           top->units_per_em,
-                                           scaling );
+            sub->units_per_em = (FT_ULong)
+                                  FT_MulDiv( (FT_Long)sub->units_per_em,
+                                             (FT_Long)top->units_per_em,
+                                             scaling );
           }
         }
         else
@@ -713,7 +715,7 @@
 
         if ( temp != 0x10000L )
         {
-          *upm = FT_DivFix( *upm, temp );
+          *upm = (FT_ULong)FT_DivFix( (FT_Long)*upm, temp );
 
           matrix->xx = FT_DivFix( matrix->xx, temp );
           matrix->yx = FT_DivFix( matrix->yx, temp );
@@ -733,13 +735,13 @@
 
 
         /* set up num_faces */
-        cffface->num_faces = cff->num_faces;
+        cffface->num_faces = (FT_Long)cff->num_faces;
 
         /* compute number of glyphs */
         if ( dict->cid_registry != 0xFFFFU )
-          cffface->num_glyphs = cff->charset.max_cid + 1;
+          cffface->num_glyphs = (FT_Long)( cff->charset.max_cid + 1 );
         else
-          cffface->num_glyphs = cff->charstrings_index.count;
+          cffface->num_glyphs = (FT_Long)cff->charstrings_index.count;
 
         /* set global bbox, as well as EM size */
         cffface->bbox.xMin =   dict->font_bbox.xMin            >> 16;
@@ -763,7 +765,8 @@
           (FT_Short)( dict->underline_thickness >> 16 );
 
         /* retrieve font family & style name */
-        cffface->family_name = cff_index_get_name( cff, face_index );
+        cffface->family_name = cff_index_get_name( cff,
+                                                   (FT_UInt)face_index );
         if ( cffface->family_name )
         {
           char*  full   = cff_index_get_sid_string( cff,
diff --git a/src/cff/cffparse.c b/src/cff/cffparse.c
index 262ecc2..063b351 100644
--- a/src/cff/cffparse.c
+++ b/src/cff/cffparse.c
@@ -129,7 +129,7 @@
                   FT_Long*  scaling )
   {
     FT_Byte*  p = start;
-    FT_UInt   nib;
+    FT_Int    nib;
     FT_UInt   phase;
 
     FT_Long   result, number, exponent;
@@ -166,7 +166,7 @@
       }
 
       /* Get the nibble. */
-      nib   = ( p[0] >> phase ) & 0xF;
+      nib   = (FT_Int)( p[0] >> phase ) & 0xF;
       phase = 4 - phase;
 
       if ( nib == 0xE )
@@ -559,7 +559,7 @@
       offset->x  = cff_parse_fixed_scaled( data++, scaling );
       offset->y  = cff_parse_fixed_scaled( data,   scaling );
 
-      *upm = power_tens[scaling];
+      *upm = (FT_ULong)power_tens[scaling];
 
       FT_TRACE4(( " [%f %f %f %f %f %f]\n",
                   (double)matrix->xx / *upm / 65536,
diff --git a/src/pshinter/pshrec.c b/src/pshinter/pshrec.c
index 51f2361..eb7987c 100644
--- a/src/pshinter/pshrec.c
+++ b/src/pshinter/pshrec.c
@@ -835,14 +835,14 @@
   /* add one or more stems to the current hints table */
   static void
   ps_hints_stem( PS_Hints  hints,
-                 FT_Int    dimension,
-                 FT_UInt   count,
+                 FT_UInt   dimension,
+                 FT_Int    count,
                  FT_Long*  stems )
   {
     if ( !hints->error )
     {
       /* limit "dimension" to 0..1 */
-      if ( dimension < 0 || dimension > 1 )
+      if ( dimension > 1 )
       {
         FT_TRACE0(( "ps_hints_stem: invalid dimension (%d) used\n",
                     dimension ));
@@ -891,7 +891,7 @@
   /* add one Type1 counter stem to the current hints table */
   static void
   ps_hints_t1stem3( PS_Hints   hints,
-                    FT_Int     dimension,
+                    FT_UInt    dimension,
                     FT_Fixed*  stems )
   {
     FT_Error  error = FT_Err_Ok;
@@ -906,7 +906,7 @@
 
 
       /* limit "dimension" to 0..1 */
-      if ( dimension < 0 || dimension > 1 )
+      if ( dimension > 1 )
       {
         FT_TRACE0(( "ps_hints_t1stem3: invalid dimension (%d) used\n",
                     dimension ));
@@ -1128,7 +1128,7 @@
 
   static void
   t1_hints_stem( T1_Hints   hints,
-                 FT_Int     dimension,
+                 FT_UInt    dimension,
                  FT_Fixed*  coords )
   {
     FT_Pos  stems[2];
@@ -1172,12 +1172,12 @@
 
   static void
   t2_hints_stems( T2_Hints   hints,
-                  FT_Int     dimension,
+                  FT_UInt    dimension,
                   FT_Int     count,
                   FT_Fixed*  coords )
   {
-    FT_Pos  stems[32], y, n;
-    FT_Int  total = count;
+    FT_Pos  stems[32], y;
+    FT_Int  total = count, n;
 
 
     y = 0;