diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/hb-buffer.hh')
-rw-r--r-- | src/3rdparty/harfbuzz-ng/src/hb-buffer.hh | 88 |
1 files changed, 60 insertions, 28 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-buffer.hh b/src/3rdparty/harfbuzz-ng/src/hb-buffer.hh index bb1efe9dd3..0a198722d6 100644 --- a/src/3rdparty/harfbuzz-ng/src/hb-buffer.hh +++ b/src/3rdparty/harfbuzz-ng/src/hb-buffer.hh @@ -35,26 +35,6 @@ #include "hb-set-digest.hh" -#ifndef HB_BUFFER_MAX_LEN_FACTOR -#define HB_BUFFER_MAX_LEN_FACTOR 64 -#endif -#ifndef HB_BUFFER_MAX_LEN_MIN -#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 1024 -#endif -#ifndef HB_BUFFER_MAX_OPS_MIN -#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! */ -#endif - static_assert ((sizeof (hb_glyph_info_t) == 20), ""); static_assert ((sizeof (hb_glyph_info_t) == sizeof (hb_glyph_position_t)), ""); @@ -136,6 +116,7 @@ struct hb_buffer_t uint8_t allocated_var_bits; uint8_t serial; + uint32_t random_state; hb_buffer_scratch_flags_t scratch_flags; /* Have space-fallback, etc. */ unsigned int max_len; /* Maximum allowed len. */ int max_ops; /* Maximum allowed operations. */ @@ -484,13 +465,16 @@ struct hb_buffer_t start, end, true); } +#ifndef HB_OPTIMIZE_SIZE + HB_ALWAYS_INLINE +#endif void unsafe_to_concat (unsigned int start = 0, unsigned int end = -1) { if (likely ((flags & HB_BUFFER_FLAG_PRODUCE_UNSAFE_TO_CONCAT) == 0)) return; _set_glyph_flags (HB_GLYPH_FLAG_UNSAFE_TO_CONCAT, start, end, - true); + false); } void unsafe_to_break_from_outbuffer (unsigned int start = 0, unsigned int end = -1) { @@ -498,6 +482,9 @@ struct hb_buffer_t start, end, true, true); } +#ifndef HB_OPTIMIZE_SIZE + HB_ALWAYS_INLINE +#endif void unsafe_to_concat_from_outbuffer (unsigned int start = 0, unsigned int end = -1) { if (likely ((flags & HB_BUFFER_FLAG_PRODUCE_UNSAFE_TO_CONCAT) == 0)) @@ -513,6 +500,13 @@ struct hb_buffer_t HB_NODISCARD HB_INTERNAL bool enlarge (unsigned int size); + HB_NODISCARD bool resize (unsigned length) + { + assert (!have_output); + if (unlikely (!ensure (length))) return false; + len = length; + return true; + } HB_NODISCARD bool ensure (unsigned int size) { return likely (!size || size < allocated) ? true : enlarge (size); } @@ -573,7 +567,7 @@ struct hb_buffer_t bool message (hb_font_t *font, const char *fmt, ...) HB_PRINTF_FUNC(3, 4) { #ifdef HB_NO_BUFFER_MESSAGE - return true; + return true; #else if (likely (!messaging ())) return true; @@ -601,21 +595,59 @@ struct hb_buffer_t unsigned int cluster, hb_mask_t mask) { - for (unsigned int i = start; i < end; i++) - if (cluster != infos[i].cluster) + if (unlikely (start == end)) + return; + + unsigned cluster_first = infos[start].cluster; + unsigned cluster_last = infos[end - 1].cluster; + + if (cluster_level == HB_BUFFER_CLUSTER_LEVEL_CHARACTERS || + (cluster != cluster_first && cluster != cluster_last)) + { + for (unsigned int i = start; i < end; i++) + if (cluster != infos[i].cluster) + { + scratch_flags |= HB_BUFFER_SCRATCH_FLAG_HAS_GLYPH_FLAGS; + infos[i].mask |= mask; + } + return; + } + + /* Monotone clusters */ + + if (cluster == cluster_first) + { + for (unsigned int i = end; start < i && infos[i - 1].cluster != cluster_first; i--) + { + scratch_flags |= HB_BUFFER_SCRATCH_FLAG_HAS_GLYPH_FLAGS; + infos[i - 1].mask |= mask; + } + } + else /* cluster == cluster_last */ + { + for (unsigned int i = start; i < end && infos[i].cluster != cluster_last; i++) { scratch_flags |= HB_BUFFER_SCRATCH_FLAG_HAS_GLYPH_FLAGS; infos[i].mask |= mask; } + } } - static unsigned + unsigned _infos_find_min_cluster (const hb_glyph_info_t *infos, unsigned start, unsigned end, unsigned cluster = UINT_MAX) { - for (unsigned int i = start; i < end; i++) - cluster = hb_min (cluster, infos[i].cluster); - return cluster; + if (unlikely (start == end)) + return cluster; + + if (cluster_level == HB_BUFFER_CLUSTER_LEVEL_CHARACTERS) + { + for (unsigned int i = start; i < end; i++) + cluster = hb_min (cluster, infos[i].cluster); + return cluster; + } + + return hb_min (cluster, hb_min (infos[start].cluster, infos[end - 1].cluster)); } void clear_glyph_flags (hb_mask_t mask = 0) |