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-rw-r--r--src/3rdparty/harfbuzz-ng/src/hb-buffer-private.hh144
1 files changed, 118 insertions, 26 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-buffer-private.hh b/src/3rdparty/harfbuzz-ng/src/hb-buffer-private.hh
index bca308da2f..97bdc1be30 100644
--- a/src/3rdparty/harfbuzz-ng/src/hb-buffer-private.hh
+++ b/src/3rdparty/harfbuzz-ng/src/hb-buffer-private.hh
@@ -35,8 +35,8 @@
#include "hb-unicode-private.hh"
-#ifndef HB_BUFFER_MAX_EXPANSION_FACTOR
-#define HB_BUFFER_MAX_EXPANSION_FACTOR 32
+#ifndef HB_BUFFER_MAX_LEN_FACTOR
+#define HB_BUFFER_MAX_LEN_FACTOR 32
#endif
#ifndef HB_BUFFER_MAX_LEN_MIN
#define HB_BUFFER_MAX_LEN_MIN 8192
@@ -45,11 +45,22 @@
#define HB_BUFFER_MAX_LEN_DEFAULT 0x3FFFFFFF /* Shaping more than a billion chars? Let us know! */
#endif
-ASSERT_STATIC (sizeof (hb_glyph_info_t) == 20);
-ASSERT_STATIC (sizeof (hb_glyph_info_t) == sizeof (hb_glyph_position_t));
+#ifndef HB_BUFFER_MAX_OPS_FACTOR
+#define HB_BUFFER_MAX_OPS_FACTOR 64
+#endif
+#ifndef HB_BUFFER_MAX_OPS_MIN
+#define HB_BUFFER_MAX_OPS_MIN 1024
+#endif
+#ifndef HB_BUFFER_MAX_OPS_DEFAULT
+#define HB_BUFFER_MAX_OPS_DEFAULT 0x1FFFFFFF /* Shaping more than a billion operations? Let us know! */
+#endif
+
+static_assert ((sizeof (hb_glyph_info_t) == 20), "");
+static_assert ((sizeof (hb_glyph_info_t) == sizeof (hb_glyph_position_t)), "");
HB_MARK_AS_FLAG_T (hb_buffer_flags_t);
HB_MARK_AS_FLAG_T (hb_buffer_serialize_flags_t);
+HB_MARK_AS_FLAG_T (hb_buffer_diff_flags_t);
enum hb_buffer_scratch_flags_t {
HB_BUFFER_SCRATCH_FLAG_DEFAULT = 0x00000000u,
@@ -57,6 +68,8 @@ enum hb_buffer_scratch_flags_t {
HB_BUFFER_SCRATCH_FLAG_HAS_DEFAULT_IGNORABLES = 0x00000002u,
HB_BUFFER_SCRATCH_FLAG_HAS_SPACE_FALLBACK = 0x00000004u,
HB_BUFFER_SCRATCH_FLAG_HAS_GPOS_ATTACHMENT = 0x00000008u,
+ HB_BUFFER_SCRATCH_FLAG_HAS_UNSAFE_TO_BREAK = 0x00000010u,
+
/* Reserved for complex shapers' internal use. */
HB_BUFFER_SCRATCH_FLAG_COMPLEX0 = 0x01000000u,
HB_BUFFER_SCRATCH_FLAG_COMPLEX1 = 0x02000000u,
@@ -81,6 +94,7 @@ struct hb_buffer_t {
hb_codepoint_t replacement; /* U+FFFD or something else. */
hb_buffer_scratch_flags_t scratch_flags; /* Have space-flallback, etc. */
unsigned int max_len; /* Maximum allowed len. */
+ int max_ops; /* Maximum allowed operations. */
/* Buffer contents */
hb_buffer_content_type_t content_type;
@@ -99,17 +113,6 @@ struct hb_buffer_t {
hb_glyph_info_t *out_info;
hb_glyph_position_t *pos;
- inline hb_glyph_info_t &cur (unsigned int i = 0) { return info[idx + i]; }
- inline hb_glyph_info_t cur (unsigned int i = 0) const { return info[idx + i]; }
-
- inline hb_glyph_position_t &cur_pos (unsigned int i = 0) { return pos[idx + i]; }
- inline hb_glyph_position_t cur_pos (unsigned int i = 0) const { return pos[idx + i]; }
-
- inline hb_glyph_info_t &prev (void) { return out_info[out_len ? out_len - 1 : 0]; }
- inline hb_glyph_info_t prev (void) const { return out_info[out_len ? out_len - 1 : 0]; }
-
- inline bool has_separate_output (void) const { return info != out_info; }
-
unsigned int serial;
/* Text before / after the main buffer contents.
@@ -129,6 +132,10 @@ struct hb_buffer_t {
#ifndef HB_NDEBUG
uint8_t allocated_var_bits;
#endif
+
+
+ /* Methods */
+
inline void allocate_var (unsigned int start, unsigned int count)
{
#ifndef HB_NDEBUG
@@ -165,8 +172,17 @@ struct hb_buffer_t {
#endif
}
+ inline hb_glyph_info_t &cur (unsigned int i = 0) { return info[idx + i]; }
+ inline hb_glyph_info_t cur (unsigned int i = 0) const { return info[idx + i]; }
+
+ inline hb_glyph_position_t &cur_pos (unsigned int i = 0) { return pos[idx + i]; }
+ inline hb_glyph_position_t cur_pos (unsigned int i = 0) const { return pos[idx + i]; }
+
+ inline hb_glyph_info_t &prev (void) { return out_info[out_len ? out_len - 1 : 0]; }
+ inline hb_glyph_info_t prev (void) const { return out_info[out_len ? out_len - 1 : 0]; }
+
+ inline bool has_separate_output (void) const { return info != out_info; }
- /* Methods */
HB_INTERNAL void reset (void);
HB_INTERNAL void clear (void);
@@ -232,25 +248,31 @@ struct hb_buffer_t {
for (unsigned int j = 0; j < len; j++)
info[j].mask |= mask;
}
- HB_INTERNAL void set_masks (hb_mask_t value,
- hb_mask_t mask,
- unsigned int cluster_start,
- unsigned int cluster_end);
+ HB_INTERNAL void set_masks (hb_mask_t value, hb_mask_t mask,
+ unsigned int cluster_start, unsigned int cluster_end);
- HB_INTERNAL void merge_clusters (unsigned int start,
- unsigned int end)
+ inline void merge_clusters (unsigned int start, unsigned int end)
{
if (end - start < 2)
return;
merge_clusters_impl (start, end);
}
- HB_INTERNAL void merge_clusters_impl (unsigned int start,
- unsigned int end);
- HB_INTERNAL void merge_out_clusters (unsigned int start,
- unsigned int end);
+ HB_INTERNAL void merge_clusters_impl (unsigned int start, unsigned int end);
+ HB_INTERNAL void merge_out_clusters (unsigned int start, unsigned int end);
/* Merge clusters for deleting current glyph, and skip it. */
HB_INTERNAL void delete_glyph (void);
+ inline void unsafe_to_break (unsigned int start,
+ unsigned int end)
+ {
+ if (end - start < 2)
+ return;
+ unsafe_to_break_impl (start, end);
+ }
+ HB_INTERNAL void unsafe_to_break_impl (unsigned int start, unsigned int end);
+ HB_INTERNAL void unsafe_to_break_from_outbuffer (unsigned int start, unsigned int end);
+
+
/* Internal methods */
HB_INTERNAL bool enlarge (unsigned int size);
@@ -282,9 +304,79 @@ struct hb_buffer_t {
return ret;
}
HB_INTERNAL bool message_impl (hb_font_t *font, const char *fmt, va_list ap) HB_PRINTF_FUNC(3, 0);
+
+ static inline void
+ set_cluster (hb_glyph_info_t &info, unsigned int cluster, unsigned int mask = 0)
+ {
+ if (info.cluster != cluster)
+ {
+ if (mask & HB_GLYPH_FLAG_UNSAFE_TO_BREAK)
+ info.mask |= HB_GLYPH_FLAG_UNSAFE_TO_BREAK;
+ else
+ info.mask &= ~HB_GLYPH_FLAG_UNSAFE_TO_BREAK;
+ }
+ info.cluster = cluster;
+ }
+
+ inline int
+ _unsafe_to_break_find_min_cluster (const hb_glyph_info_t *info,
+ unsigned int start, unsigned int end,
+ unsigned int cluster) const
+ {
+ for (unsigned int i = start; i < end; i++)
+ cluster = MIN<unsigned int> (cluster, info[i].cluster);
+ return cluster;
+ }
+ inline void
+ _unsafe_to_break_set_mask (hb_glyph_info_t *info,
+ unsigned int start, unsigned int end,
+ unsigned int cluster)
+ {
+ for (unsigned int i = start; i < end; i++)
+ if (cluster != info[i].cluster)
+ {
+ scratch_flags |= HB_BUFFER_SCRATCH_FLAG_HAS_UNSAFE_TO_BREAK;
+ info[i].mask |= HB_GLYPH_FLAG_UNSAFE_TO_BREAK;
+ }
+ }
+
+ inline void
+ unsafe_to_break_all (void)
+ {
+ for (unsigned int i = 0; i < len; i++)
+ info[i].mask |= HB_GLYPH_FLAG_UNSAFE_TO_BREAK;
+ }
+ inline void
+ safe_to_break_all (void)
+ {
+ for (unsigned int i = 0; i < len; i++)
+ info[i].mask &= ~HB_GLYPH_FLAG_UNSAFE_TO_BREAK;
+ }
};
+/* Loop over clusters. Duplicated in foreach_syllable(). */
+#define foreach_cluster(buffer, start, end) \
+ for (unsigned int \
+ _count = buffer->len, \
+ start = 0, end = _count ? _next_cluster (buffer, 0) : 0; \
+ start < _count; \
+ start = end, end = _next_cluster (buffer, start))
+
+static inline unsigned int
+_next_cluster (hb_buffer_t *buffer, unsigned int start)
+{
+ hb_glyph_info_t *info = buffer->info;
+ unsigned int count = buffer->len;
+
+ unsigned int cluster = info[start].cluster;
+ while (++start < count && cluster == info[start].cluster)
+ ;
+
+ return start;
+}
+
+
#define HB_BUFFER_XALLOCATE_VAR(b, func, var) \
b->func (offsetof (hb_glyph_info_t, var) - offsetof(hb_glyph_info_t, var1), \
sizeof (b->info[0].var))
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-02 11:18:41 +0000