[buffer] Increase work limits

Our previous limits of 64 per input character was already hit
by David Corbett's under-development Duployan font.

Increase work limits by factor of 16, and number of glyphs by factor of 2.

Fixes https://github.com/harfbuzz/harfbuzz/issues/2707

src/hb-buffer.hh

@@ -35,20 +35,20 @@
 
 
 #ifndef HB_BUFFER_MAX_LEN_FACTOR
-#define HB_BUFFER_MAX_LEN_FACTOR 32
+#define HB_BUFFER_MAX_LEN_FACTOR 64
 #endif
 #ifndef HB_BUFFER_MAX_LEN_MIN
-#define HB_BUFFER_MAX_LEN_MIN 8192
+#define HB_BUFFER_MAX_LEN_MIN 16384
 #endif
 #ifndef HB_BUFFER_MAX_LEN_DEFAULT
 #define HB_BUFFER_MAX_LEN_DEFAULT 0x3FFFFFFF /* Shaping more than a billion chars? Let us know! */
 #endif
 
 #ifndef HB_BUFFER_MAX_OPS_FACTOR
-#define HB_BUFFER_MAX_OPS_FACTOR 64
+#define HB_BUFFER_MAX_OPS_FACTOR 1024
 #endif
 #ifndef HB_BUFFER_MAX_OPS_MIN
-#define HB_BUFFER_MAX_OPS_MIN 1024
+#define HB_BUFFER_MAX_OPS_MIN 16384
 #endif
 #ifndef HB_BUFFER_MAX_OPS_DEFAULT
 #define HB_BUFFER_MAX_OPS_DEFAULT 0x1FFFFFFF /* Shaping more than a billion operations? Let us know! */